communication method and apparatus for carrier aggregation system

专利摘要:

公开号:BR112013021789B1
申请号:R112013021789
申请日:2012-02-24
公开日:2018-09-18
发明作者:Li Bo；Guan Lei；Lv Yongxia
申请人:Huawei Tech Co Ltd；
IPC主号:

专利说明:

(54) Title: METHOD AND COMMUNICATION APPARATUS FOR CARRIER AGGREGATION SYSTEM (51) Int.CI .: H04W72 / 04 (30) Unionist Priority: 21/01/2012 CN 201210019206.Χ, 24/02/2011 CN 201110045513.0 (73) Holder (s): HUAWEI TECHNOLOGIES CO., LTD (72) Inventor (s): BO LI; LAW GUAN; YONGXIA LV (85) National Phase Start Date: 08/26/2013
1/82
COMMUNICATION METHOD AND APPARATUS FOR CARRIER AGGREGATION SYSTEM
TECHNICAL FIELD
The present invention concerns the field of communication technologies, and in particular a method of communication and an apparatus for a carrier aggregation system.
BACKGROUND
For a long-term evolution system LTE (Long Term Evolution) version 8 (Release 8, R8), a base station and user equipment (User Equipment, UE) communicate and transmit data on a carrier. The base station schedules the UE through a physical downlink control channel (PDCCH) (Physical Downlink Control Channel). The PDCCH can be downlink assignment grant information (DL_grant) or uphill link escalation grant (UL_grant), carrying time-frequency resource distribution scheduling information and more respectively to indicate a physical sharing channel. downlink link PDSCH (Downlink Shared Physical Channel) or a physical upstream link sharing channel PUSCH (Uplink Shared Physical Channel). The UE, after receiving and decoding the PDCCH, according to the transported scheduling information, receives PDSCH downlink data or sends PUSCH uplink data, and then the UE sends back ACK / NACK (AN) (positive confirmation / negative confirmation) of the uplink link for the downlink link data, where to send back ACK indicates
2/82 inform receipt or success of receipt and send back NACK indicates inform non-receipt or failure to receive. The base station, after receiving the uplink data, sends the downlink AN back. PDCCH and its scaled PDSCH or PUSCH, and PDSCH and its corresponding uphill link AN have a certain synchronism relationship, that is, or sequential relationship.
To increase a peak rate and satisfy the requirement of the future communication system for a data rate, an enhanced LTE-A (Advanced Long Term Evolution) long-term evolution system introduces AC (Aggregation of Carrier) aggregation technology Carriers), that is, allocating member carriers (Component Carrier, CC) to a UE to support a higher data transmission rate. For example, an LTE system version 10 (Release 10, R10) configures a plurality of carriers for a UE, including a pair of primary uplink and downlink (Primary CC, PCC) carriers and the remaining carriers are carriers. secondary (CC Secondary, SCC), where a PCC is also called a primary cell (PCell, Primary Cell) and a SCC is also called a secondary cell (SCell, Secondary Cell), and an upstream AN of the UE can only be sent on a PCell uphill link. Additionally, in a carrier aggregation scenario, an LTE R10 system supports scheduling through carriers, that is, sending the PDCCH from a plurality of carriers to scale a UE to a certain or several carriers, such as a PCell.
In a CA TDD system where a plurality of carriers have different UL-DL configurations, because of
3/82 the UL-DL configuration of a PCell and that of a SCell are different, according to the SCell synchronism relationship, the communication between the base station and the UE through the SCell may not be performed normally.
SUMMARY
Modalities of the present invention are mainly to provide a communication method and an apparatus for an AC system to effectively ensure normal communication between the base station and the UE.
In one aspect, an embodiment of the present invention provides a method of communication for an AC system, including:
if a subframe n of a primary cell is a downlink subframe, send back an ACK / NACK of the PDSCH information sent in a subframe m or a subframe p of the primary cell, where the m, determined according to the relation of ACK / NACK timing to which subframe n of the primary cell corresponds, is a subframe index of a subframe that sends back the PDSCH ACK / NACK of subframe n of the primary cell in the primary cell, eop, determined according to the relation of ACK / NACK synchronism to which subframe n of the secondary cell corresponds, is a subframe index of a subframe which sends back the ACS / NACK of the PDSCH of subframe n of the secondary cell in the secondary cell;
where n, m and p are indexes of subframes.
In one aspect, one embodiment of the present invention provides a method of communication for a CA system, including: receiving PDSCH downlink sharing physical channel information sent by a
4/82 base station by means of a subframe n of a secondary cell;
when subframe n is a rising link subframe in a primary cell, if a subframe p is a rising link subframe in a primary cell, send back an ACK / NACK of the PDSCH information sent in subframe p of the primary cell; or, if the subframe p in a primary cell is a downlink subframe, according to pre-established or a notification from the base station, send back an ACK / NACK of the PDSCH information sent in a subframe in a primary and specified cell by the pre-establishment or notification of the base station, where the p, determined according to the ACK / NACK synchronism ratio to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back the ACK / NACK of the PDSCH of subframe n of the secondary cell in a secondary cell, enep are indexes of subframe.
In one aspect, an embodiment of the present invention provides a method of communication for an AC system, including:
receiving physical downlink link sharing (PDSCH) channel information sent by a base station via a subframe n of a secondary cell; and when subframe n is a rising link subframe in a primary cell, if a subframe p is a rising link subframe in a primary cell, send back an ACK / NACK of the PDSCH information sent in subframe p of the primary cell ; or, if the subframe p in a
5/82 primary cell is a downlink link subframe, according to a predetermination or notification from the base station, send back an ACK / NACK of the PDSCH information sent in an uplink link subframe in a specified primary cell by pre-establishing or notifying the base station where op, determined according to the ACK / NACK sync ratio to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back to ACS / NACK of the PDSCH of subframe n of the secondary cell in a secondary cell, enep are indexes of subframe.
In one aspect, an embodiment of the present invention provides a method of communication for an AC system, including:
submit information in physical channel in sharing link descent PDSCH to one user equipment through in a subframe n of an
secondary cell; and when subframe n is a rising link subframe in a primary cell, if a subframe p is a rising link subframe in a primary cell, receiving an ACK / NACK of the PDSCH information sent by the user equipment in subframe p at a primary cell; or, if the subframe p in a primary cell is a downlink subframe, receive an ACK / NACK of the PDSCH information that is sent, according to a predetermination or a notification from the base station, by a user equipment in a uplink subframe in a primary cell and specified by the pre-establishment or notification of the base station,
6/82 where op, determined according to the ACK / NACK sync ratio to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back to ACS / NACK of the PDSCH of the subframe of the cell secondary in a secondary cell, enep are indexes of subframes.
After adopting the technical solutions indicated above, the communication method provided by the modality of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that an uplink AN to which a SCell corresponds to is sent back normally and to promote this normal communication between the base station and the
HUH.
In another aspect, an embodiment of the present invention additionally provides a method of communication for an AC system, including:
generate UL_grant scheduling information for scheduling PUSCH from a sublink frame of n-climb of a secondary cell of a user equipment; and if a subframe n of a primary cell is an uphill link subframe, send the UL_grant scheduling information from the PUSCH to the user equipment via a subframe q or a subframe y of the primary cell, where the q, determined from according to the UL_grant synchro relation to which the subframe n of the primary cell corresponds, it is a subframe index of a subframe that sends the UL_grant scheduling information of the PUSCH of subframe n of the primary cell, y, determined according to the relation of UL_grant timing
7/82 to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the UL_grant scaling information of the PUSCH of subframe n of the secondary cell; or, when the subframe n of the primary cell is a subframe of the downlink, if the subframe y of the primary cell is a subframe of the downlink, send the UL_grant scheduling information from the PUSCH to the user equipment via the subframe y primary cell; or, if the primary cell subframe y is an uphill link subframe, according to pre-established or locally obtained information, send the PUSCH UL_grant scheduling information to the user equipment via a downlink link subframe in a primary cell and specified by the pre-establishment or by the information obtained locally where the y, determined according to the UL_grant synchronism relation to which the subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the PUSCH UL_grant scaling information the subframe n of the secondary cell;
where, n, q and y are indexes of subframes.
In another aspect, an embodiment of the present invention additionally provides a method of communication for an AC system, including:
if a subframe n of a primary cell is a rising link subframe:
receive the UL_grant scheduling information from the PUSCH information of subframe n of the secondary cell, sent by a base station in a subframe q or in a subframe y of the primary cell, where the q, determined from
8/82 according to the UL_grant synchronism ratio to which subframe n of the primary cell corresponds, is a subframe index of a subframe that sends the UL_grant scaling information of the PUSCH of subframe n of the primary cell, eoy, determined according to the UL_grant synchronization relationship to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the UL_grant scheduling information of the PUSCH of subframe n of the secondary cell, or, when subframe n of the primary cell is a downlink link subframe, if the primary cell subframe y is a downlink link subframe, receive the UL_grant scheduling information from the secondary cell subframe n PUSCH information, sent by the base station in the primary cell subframe y; or, if the primary cell subframe y is an uphill link subframe, according to a predetermination or notification from a base station, receive the UL_grant scheduling information from the secondary cell subframe n PUSCH, sent by the base station in a downlink subframe in a primary cell and specified by the pre-establishment or notification of the base station; where, y, determined according to the UL_grant synchro relation to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the PUSCH UL_grant scheduling information of subframe n of the secondary cell; where, n, q and y are indexes of subframes; and according to the PUSCH UL_grant scheduling information, send the PUSCH in subframe n of the cell
Secondary 9/82.
After adopting the technical solutions indicated above, the communication method provided by the modality of the present invention for an AC system, in the AC system where each carrier has a distinct UL-DL configuration, can effectively ensure that the PUSCH of a SCell is scaled normally and ensure effectively normal communication between the base station and the UE.
Also in another aspect, an embodiment of the present invention provides a UE for a CA system, including:
a receiving unit, configured to receive PDSCH information sent by a base station via a sub frame n of a SCell; and a feedback unit, configured for: if subframe n of a PCell is a downlink subframe:
send back an AN of the PDSCH information sent in a subframe m or in a subframe p of the PCell, where the m, determined according to the AN synchronism relation to which the subframe n of the PCell corresponds, is a subframe index of a subframe which sends back the PDSCH AN of the PCell subframe n in a PCell, eop, determined according to the AN synchronism relation to which the SCell subframe n corresponds, is a subframe index of a subframe that sends back to AN of PDSCH of subframe n of SCell in a SCell;
or if PCell subframe n is an uphill link subframe:
if a subframe p of PCell is a subframe of
10/82 uphill link, send back an AN of the PDSCH information sent in subframe p of PCell; or, if the PCell subframe p is a downlink subframe, according to a pre-set or a notification from a base station, send back an AN of the PDSCH information sent in an uplink subframe on a PCell and specified by the pre-establishment or notification of the base station;
where, n, m and p are indexes of subframes.
In yet another aspect, an embodiment of the present invention provides a base station for an AC system, including:
a sending unit, configured to send PDSCH information to a UE via a sub-frame of a SCell; and a receiving unit, configured for: if a sub frame of a PCell is a down link sub frame:
receiving an AN of PDSCH information sent by a UE in a subframe m or in a subframe p of PCell, where the m, determined according to the synchronism ratio AN to which the subframe of PCell corresponds, is a subframe index of a subframe that sends back the PDSCH AN of the PCell subframe n on a PCell, eop, determined according to the AN synchronism relationship to which the SCell subframe n corresponds, is a subframe index of a subframe that sends back the PDSCH AN of SCell subframe n on a SCell;
or if PCell subframe n is a subframe of
11/82 uphill link:
if a subframe p of the PCell is a subframe of the uplink, receiving an AN of the PDSCH information sent by a UE in the subframe p of the PCell; or, if the subframe p of the PCell is a subframe of the downlink, receive, according to a predetermination or notification from a base station, an AN of the PDSCH information sent by the UE in a subframe of the uplink on a PCell and specified by pre-establishing or notifying the base station;
where, n, m and p are indices of subframes.
In yet another aspect, an embodiment of the present invention provides a method for an AC system, including:
receiving physical downlink link sharing (PDSCH) channel information sent by a base station via a subframe n of a secondary cell; and in a subframe k of a primary cell, sending back an ACK / NACK of the PDSCH information sent, where ok, determined according to the ACK / NACK synchronization ratio of a first reference UL-DL TDD configuration, is an index subframe of a subframe that sends back the ACK / NACK of subframe n of the secondary cell in a primary cell.
In yet another aspect, an embodiment of the present invention provides a method for an AC system, including:
sending physical downlink link sharing (PDSCH) channel information to user equipment via a subframe n of a secondary cell; and
12/82 in a k subframe of a primary cell, receive an ACK / NACK of the PDSCH information sent back by the user equipment, where ok, determined by the user equipment according to the ACK / NACK synchronization ratio of a first configuration Reference UL-DL TDD, is a subframe index of a subframe that sends back the ACK / NACK of subframe n of the secondary cell in a primary cell.
In yet another aspect, an embodiment of the present invention provides user equipment for an AC system, including:
a receiving unit, configured to receive physical downlink link sharing (PDSCH) channel information sent by a base station via a subframe n of a secondary cell;
a processing unit, configured to determine, according to the ACK / NACK timing ratio of a first reference UL-DL TDD configuration, a subframe k subframe index in a primary cell that sends ACK / NACK back to the which subframe n of the secondary cell corresponds; and a sending unit, configured to send back to ACK / NACK the PDSCH information received by the receiving unit in subframe k determined by the processing unit in a primary cell.
In yet another aspect, an embodiment of the present invention provides a base station for an AC system, including:
a sending unit, configured to send physical link-sharing channel information
13/82 descent (PDSCH) to a user equipment by means of a subframe n of a secondary cell; and a receiving unit, configured to receive, in a k subframe of a primary cell, an ACK / NACK of the PDSCH information received by the receiving unit and sent back by the user equipment, where ok, determined by the user equipment accordingly. with the ACK / NACK sync ratio of a first reference UL-DL TDD configuration, it is a subframe index of a subframe that sends back the ACK / NACK of subframe n of the secondary cell in a primary cell.
After adopting the technical solutions indicated above, the UE and the base station provided by the modalities of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that an uplink AN to which a corresponding SCell is sent back normally and also effectively ensures normal communication between a UE and a base station.
In yet another aspect, an embodiment of the present invention provides a base station for an AC system, including:
a generation unit, configured to generate UL_grant scheduling information for scheduling PUSCH from a sub-frame of the n-climb of a SCell; and a scaling unit, configured for: if subframe n of a PCell is a subframe of uphill link:
send the UL_grant PUSCH scheduling information from a UE via a subframe q or a
14/82 PCell subframe y, where q, according to the UL_grant synchro relation to which PCell subframe n corresponds, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information from PCell subframe n , and y, according to the UL_grant sync ratio to which SCell subframe n corresponds, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information of SCell subframe n;
or
if the subframe n gives PCell for one subframe in link of descent: if the subframe y gives PCell for one subframe in link of descent, send The information in staggering UL grant of PUSCH for HUH through dc > subframe y gives PCell, and if the subframe y gives PCell for one subframe in
uphill link, according to pre-established or locally obtained information, send the UL_grant scheduling information from the PUSCH to the UE through a down link subframe on a PCell and specified by the pre-established or locally obtained information;
where, n, q and y are indexes of subframes.
In yet another aspect, an embodiment of the present invention provides a UE for a CA system, including:
a receiving unit, configured for: if subframe n of a PCell is a subframe of uphill link:
receive the UL_grant scheduling information from the SCUS subframe n PUSCH information, sent in a
15/82 subframe q or in a PCell subframe y by a base station, where the q, according to the UL_grant synchronism relationship to which the PCell subframe n corresponds, is a subframe index of a subframe that sends the information of PUSCH UL_grant scaling of PCell n subframe, eoy, according to the UL_grant synchro relation to which SCell subframe n corresponds, is a subframe index of a subframe that sends the PUSCH scaling information of PUSCH of subframe n of SCell;
or
if subframe n gives PCell for one subframe in link in descent: if a subframe y gives PCell for one subframe in link in descent, receive The information in staggering
UL_grant of SCUS subframe n PUSCH information, sent in PCell subframe y by a base station; and if the PCell subframe y is an uphill link subframe, according to a predetermination or a notification from the base station, receive, by the base station, the PUSCH UL_grant scheduling information in a downlink link subframe at SCell and specified by the pre-establishment or notification of the base station.
where, n, q and y are indexes of subframes; and a sending unit, configured to send, according to the PUSCH UL_grant scheduling information, the PUSCH in SCell n subframe.
After adopting the technical solutions indicated above, the base station and the UE provided by the modality of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can
16/82 effectively ensuring that a SCell's PUSCH is scaled normally and effectively ensuring normal communication between the base station and the UE.
BRIEF DESCRIPTION OF THE DRAWINGS
To illustrate technical solutions in the modalities of the present invention or in the prior art more clearly, the following briefly introduces the accompanying drawings required to describe the modalities or the prior art. Of course, the accompanying drawings in the description below show only a few embodiments of the present invention, and persons of ordinary skill in the art can still derive other designs from these attached drawings without creative efforts.
Figure 1 is a flow chart of a method of communicating an embodiment of the present invention;
Figure 2 is another flow chart of a method of communicating an embodiment of the present invention;
Figure 3 is a schematic diagram of an UL-DL configuration of an AC system of an embodiment of the present invention;
Figure 4 is another flow chart of a method of communicating an embodiment of the present invention;
Figure 5 is another flow chart of a method of communicating an embodiment of the present invention;
Figure 6 is a schematic diagram of an UL-DL configuration of an AC system of an embodiment of the present invention;
Figure 7 is a schematic diagram of an UL-DL configuration of an AC system of an embodiment of the present invention;
17/82
Figure 8 is a structural diagram of a UE of an embodiment of the present invention.
Figure 9 is another structural diagram of an UE of an embodiment of the present invention.
Figure 10 is a structural diagram of a base station of an embodiment of the present invention;
Figure 11 is another structural diagram of a base station of an embodiment of the present invention;
Figure 12 is a structural diagram of a base station of an embodiment of the present invention;
Figure 13 is a structural diagram of a UE of an embodiment of the present invention.
Figure 14 is another flow chart of a method of communicating an embodiment of the present invention;
Figure 15 is one diagram schematic of an UL-DL configuration in one AC system of a modality gives the present invention; Figure 16 is one diagram schematic of an UL-DL configuration in one AC system of a modality gives the present invention; Figure 17 is one diagram schematic of an UL-DL configuration in one AC system of a modality gives the present invention; Figure 18 is one another diagram structural of a UE , in
an embodiment of the present invention.
Figure 19 is another flowchart of a method of communicating an embodiment of the present invention;
Figure 20 is another structural diagram of a base station of an embodiment of the present invention;
Figure 21 is another flowchart of a method of
18/82
communicating an embodiment of the present invention; in an Figure 22 is one diagram schematic UL-DL configuration in one AC system of a modality gives the present invention; Figure 23 is one diagram schematic in an UL-DL configuration in one AC system of a modality gives the present invention; Figure 24 is one diagram schematic in an UL-DL configuration in one AC system of a modality gives the present invention; and Figure 25 is one diagram schematic in an UL-DL configuration in one AC system of a modality gives present invention.
DESCRIPTION OF MODALITIES
Technical solutions in the embodiments of the present invention are described clearly and in full below with reference to the accompanying drawings in the embodiments of the present invention.
It should be defined that the described modalities are only a part of the modalities of the present invention instead of all modalities. All other modalities obtained by persons of ordinary skill in the art based on the modalities of the present invention without creative efforts should be included in the scope of protection of the present invention.
It should be noted that the modalities of the present invention are applied to a TDD time division duplexing system (Time Division Duplexing) or to a TDD carrier aggregation system and FDD frequency division duplexing (Division Duplexing) in
19/82
Frequency) and more. Additionally, in the embodiments of the present invention, a cell (Cell) can also be replaced by the concept of a member carrier. In this way, a PCell is also called a PCC and a SCell is also called a SCC.
To make those skilled in the art better understand the technical solutions of the present invention, firstly the UL-DL configuration and the synchronism ratio in a system
TDD LTE are briefly introduced.
A detailed UL-DL configuration of a TDD LTE system is listed in Table 1. The TDD LTE system can support seven different types of UL-DL subframes configurations from configuration 0 to configuration 6. In different UL-DL configurations, a frame without wire includes 10 subframe indexes or subframe numbers from 0 to 9. Subframes of the same subframe index can have the same type of subframe or different types. In Table 1, D indicates a downlink subframe, S indicates a special subframe that can transmit downlink data and U indicates an uplink subframe.
Table 1: UL-DL Configuration of a TDD LTE System index ofSubframe) Subframe (Number in UL-DL configuration 0 1 2 3 4 5 6 7 8 9 0 D s U U U D s U U U 1 D s U U D D s U U D 2 D s U D D D s U D D 3 D s U U U D D D D D 4 D s u U D D D D D D
20/82
5 D S U D D D D D D D 6 D S U U U D S U U D Specifically, a relationship in timing between PDSCH and its link AN ascent corresponding is
listed in Table 2. A subframe marked with a number in Table 2 is an uplink subframe, where the number indicates the PDSCH uplink AN of which downlink subframe needs to be sent back by the link subframe ascent. For example, in configuration 1, the numbers 5 and 6 in a subframe 2 indicate that the uplink subframe 2 is used to send back uplink AN from the downlink subframes 5 and 6.
Table 2: Synchronism Relationship Between PDSCH and Its Corresponding Uplink AN
Configuration of Subframe Index (Subframe Number) UL-DL
0 1 2 3 4 5 6 7 8 9 0 6 0 1 5 1 5.6 9 0.1 4 2 4.5.6.8 0.1.3 . 9 3 1.5.6 7.8 0.9 4 0.1.4.5 6.7.8.9 5 0.1.3.4.5.6.7.8. 9 6 5 6 9 0 1 Specifically, a relation of timing in between UL_ _grant and PUSCH staggered for she is listed in Table
3. A subframe marked with a number in Table 3 is a
21/82 uplink link subframe, where the number indicates on which downlink subframe the UL_grant to scale PUSCH of the current uplink subframe is sent. For example, in configuration 1, PUSCH of an uphill link subframe 2 is scaled by UL_grant sent to a downlink subframe 6, and in configuration 0 PUSCH of an uphill link subframe 2 can be scaled by the UL_grant sent to the downlink link subframes 5 and 6.
Table 3: Synchronism Relationship Between UL_grant and PUSCH
Staggered per UL grant Configuration Subframe index (Number in Subframe) UL-DL 0 12 3 4 5 6 7 8 9 0 5.6 6 0 0.1 1 5 1 6 9 1 4 2 8 3 3 8 9 0 4 8 9 5 8 6 5 6 9 0 1 In an AC system where an plurality of carriers
has different UL-DL configurations, when a UE U-Link AN can only be established for a PCell U-Link, according to the SCell U-Link AN Corresponding SCell may not be sent back, affecting normal communication between a base station and the UE. For example, in a CA TDD system that includes two carriers such as a PCell and a SCell, the PCell is a
22/82 UL-DL 2 configuration and SCell is an UL-DL 1 configuration. As listed in Table 2, according to a synchronism relationship between SCell's PDSCH and its corresponding uphill link AN, the ANs to which the two downlink link subframes 4 and 9 of SCell correspond are respectively sent back in subframes 3 and 8, that is, sent back in subframes 3 and 8 of PCell. However, at this time, the ANs for which the two SCell downlink subframes 4 and 9 fail to be sent back in PCell subframes 3 and 8 according to the original time sequence, because subframes 3 and 8 from PCell are downlink link subframes.
In a similar way, in a CA TDD system where a plurality of carriers have different UL-DL configurations, in a scenario of scaling through carriers, each carrier's PDCCH is sent to PCell, according to a synchronization ratio of the UL_grant of SCell for PUSCH, SCell's PUSCH may not scale, affecting normal communication between a base station and an UE. For example, in a CA TDD system that includes two carriers such as a PCell and a SCell, PCell is an UL-DL 1 configuration and SCell is an UL-DL 2 configuration. In a carrier-scale, PDCCH scenario of each carrier is sent to PCell. As listed in Table 3, according to a synchronization relationship between SCell's UL_grant and SCell's scaled PUSCH, the UL_grant for scaling PUSCH of the uplink subframe 2 is in the downlink subframe 8, that is, scaling is performed in subframe 8 of a PCell, but
23/82 at this time scheduling fails to run on a PCell, because PCell subframe 8 is an uphill link subframe.
Based on the above, the modalities of the present invention provide a communication method and an apparatus for an AC system to effectively ensure normal communication between the base station and the UE.
As shown in figure 1, an embodiment of the present invention provides a communication method for a CA system, based on a UE. In the modality, the CA system is configured with a PCell and a SCell, where the PCell and SCell have different UL-DL configurations, and the modality includes the following steps:
Step 101: Receive the PDSCH information sent by a base station via a sub frame n of a SCell.
Here, n is a subframe index. Of course, SCell subframe n is a downlink subframe.
In the step, a UE receives downlink link PDSCH information sent by the base station through the SCell. The UE then sends an AN back to the sent PDSCH to inform the base station that the sent PDSCH information has been successfully received.
Optionally, if a sub frame of a PCell is a down link sub frame, the modality includes:
Step 102: Send back an AN of the PDSCH information sent in a subframe m or in a subframe p of PCell, where the m, determined according to the synchronism ratio AN to which subframe n of PCell corresponds, is a subframe index of a subframe that sends back the PDSCH AN of PCell n subframe in a PCell, eop,
24/82 determined according to the AN synchronism ratio to which the SCell subframe n corresponds, it is a subframe index of a subframe that sends back to the PDSCH AN of the SCell subframe in a SCell.
In the step, preferably, the UE sends back an AN of the PDSCH information sent in the PCell m subframe. Because the PCell subframe is a downlink subframe, according to the PDSCH sync ratio sent from the PCell subframe to the AN, sending back a PDSCH AN from the PCell subframe in the subframe PCell's m, that is, the PCell's subframe is an uphill link subframe, and therefore the UE can send back a PDSCH AN of SCell's subframe n in the PCell's mframe, that is, to effectively ensure normal communication between the base station and the UE.
If, according to the AN synchro relation to which SCell subframe n corresponds, a PDSCH AN of SCell subframe n is sent back in SCell subframe p, and if PCell subframe p is also a subframe of SCell uplink link, the UE similarly can send a PDSCH AN from SCell subframe n via PCell subframe p. Therefore, optionally, in the step, the UE can send back an AN of the PDSCH information sent in the subframe p of the PCell.
Additionally, in another embodiment of the present invention, in the step, the UE can also select a subframe of the m and subframe p of the PCell to send back an AN of the sent PDSCH information and, specifically, the UE, according to the latency of the AN of the PDSCH information sent, selects the subframe that has the
25/82 lower latency between subframe m and subframe p of PCell to send back an AN of the sent PDSCH information.
It should be noted that, because the base station or UE requires a processing time period, the latency of the PDSCH information sent in general cannot be less than four subframes.
Optionally, if PCell subframe n is a downlink subframe, physical downlink link control (PDCCH) channel information sent by the base station via subframe n of the primary cell is received. The PDCCH information is used to schedule the PDSCH information sent by SCell subframe n.
Optionally, if PCell's subframe n is an uphill link subframe, the modality includes:
Step 103: If the subframe p of the PCell is a subframe of the uplink, send back an AN of the PDSCH information sent in the subframe p of the PCell.
If the PCell subframe p is a downlink subframe, according to a predetermination or a notification from the base station, an AN of the PDSCH information sent is sent back into an uplink subframe on a PCell or specified by the presetting or notification from the base station.
For example, the UE may, according to a predetermination or a notification from the base station, send back an AN of the PDSCH information sent in the subframe that has the lowest latency of sending back the AN of the PDSCH information sent in a PCell.
According to the AN synchronism relation to which the SCell subframe n corresponds, a PDSCH AN of the
26/82 SCell subframe n is sent back in SCell subframe p, and when PCell subframe p is also an uphill link subframe, the UE similarly can send back a PDSCH AN from subframe n of frame SCell via PCell's subframe p. However, if the PCell subframe p is a downlink subframe, according to a predetermination or notification from the base station, an AN of the PDSCH information sent is sent back into a predefined uphill link subframe on a PCell and specified by the base station's pre-establishment and notification. Therefore, sending back the PDSCH AN from SCell subframe n can be performed normally, effectively further ensuring normal communication between the base station and the UE.
In addition, it should be noted that, in the mode of the present invention, when the UE receives the PDSCH sent by the base station via the PCell downlink subframe, according to the original PCell synchronism ratio, the AN of the PDSCH sent is sent back.
In addition, because in the embodiment of the present invention the SCell Uplink AN is sent back into the PCell Uplink Subframe to prevent the PCell Uplink Subframe from sending an unbalanced number of ANs and to ensure the test performance of ANs, the base station can perform subframe level change processing for a specified carrier, and perform subframe level change for the specified carrier makes the number of ANs sent back on the uplink subframe PCell's tendency to stay balanced, effectively ensuring the performance of
27/82 ANs test, and the carrier's subframe configuration after being changed needs to be known by both the base station and the UE; therefore, the method of communicating the embodiment of the present invention, prior to step 101, further includes:
learn that the base station performs subframe level change processing for a PCell wireless frame in relation to a SCell wireless frame; or learn that the base station performs subframe level change processing for the SCell wireless frame in relation to the SCell wireless frame
PCell.
Specifically, the UE may learn that the base station performs subframe level change processing for PCell or SCell according to the base station's notification or preset.
The communication method provided by the modality of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that the AN to which the SCell PDSCH corresponds is sent back normally and therefore , additionally ensure normal communication between the base station and the UE.
Corresponding to the method in figure 1, an embodiment of the present invention additionally provides a communication method for an AC system, based on the base station serving the UE. As shown in figure 2, the method includes the following steps:
Step 201: Send PDSCH information to a UE through a sub frame of a SCell.
28/82
Optionally, before the PDSCH information sent to a user's equipment via a sub-frame of a SCell, additionally include: sending downlink control physical channel information (PDCCH) through the sub-frame of the PCell, where the information PDCCH is used to scale the PDSCH information sent by subframe n of the
SCell.
If the subframe n of a PCell is an uplink subframe, PDSCH in subframe n of the secondary cell is not staggered. Optionally, if PCell subframe n is a downlink subframe, the modality includes:
Step 202: Receiving an AN of the PDSCH information sent by a UE in a subframe m or subframe p of the PCell, where the m, determined according to the synchronism ratio AN to which the subframe of the PCell corresponds, is a subframe index of a subframe that sends back the PDSCH AN of the PCell subframe n on a PCell, eop, determined according to the AN synchronism relation to which the SCell subframe n corresponds, is a subframe index of a subframe that sends from returns to AN of PDSCH of subframe n of SCell in a SCell.
During the normal communication process, the PDSCH sync relationship to which SCell corresponds is known to both the base station and the UE, that is, the base station knows the subframe of the UE that sends back the AN of the PDSCH information sent in a PCell. Therefore, in the step, the base station adopts a receiving mode corresponding to the UE to receive the AN of the PDSCH information sent by the UE in a PCell.
Because PCell's subframe is a subframe
29/82 uplink link and therefore the UE can send back a PDSCH AN from SCell subframe n via PCell subframe, the base station can receive PDSCH information sent via PCell m subframe . However, when PCell's subframe p is an uphill link subframe, the UE similarly can send back a PDSCH AN from SCell's subframe n via PCell's subframe p, and the base station can receive the information PDSCH sent via the PCell subframe p. Therefore, sending back the PDSCH AN from SCell subframe n can be performed normally, effectively further ensuring normal communication between the base station and the UE.
Additionally, in another embodiment of the present invention, the UE is in the subframe that has the lowest latency of sending back an AN of the PDSCH information, and when sending back to the AN of the PDSCH information the subframe is selected from the subframe m and the subframe P. In the step, the base station will receive the AN of the PDSCH information sent by the subframe that has the lowest latency of sending back the AN of the PDSCH information sent, and the subframe is selected by the user equipment between subframe m and subframe p of PCell.
Optionally, if PCell's subframe n is an uphill link subframe, the modality includes:
Step 203: If the PCell subframe is an uphill link subframe, receive an AN of the PDSCH information sent by a user device in the PCell subframe p; if the PCell subframe p is a downlink subframe, receive an AN of the PDSCH information sent that
30/82 is sent, according to a predetermination or notification from a base station, by the user equipment in an uplink subframe on a PCell and specified by the predetermination or notification of the base station.
Additionally, in this situation, the base station can specify which PCell subframe to be used to send the PDSCH information AN back to the UE. Therefore, the method of communication of the modality additionally includes:
Send a subframe notification to instruct a UE to execute AN of the PDSCH information for the UE.
In addition, because in the embodiment of the present invention the SCell Uplink AN is sent back into the PCell Uplink Subframe to prevent the PCell Uplink Subframe from sending an unbalanced number of ANs and to ensure the test performance of ANs, the base station can perform subframe level change processing for a specified carrier, and perform subframe level change for the specified carrier makes the number of ANs sent back on the uplink subframe PCell's tendency to stay balanced, effectively ensuring ANs test performance; therefore, the method of communication of the modality, before step 201, additionally includes:
perform subframe level change processing for the PCell wireless board relative to the SCell wireless board; or perform subframe level change processing for the SCell wireless board relative to the PCell wireless board.
The carrier's subframe configuration after being
31/82 changed needs to be known by both the base station and the UE and, therefore, the method of communication of the modality, after performing the change processing, still includes:
send a change processing notification to an UE.
communication method provided by the modality of the present invention for an AC system, in the CA system where each carrier has a distinct UL-DL configuration, can effectively ensure that the AN to which the SCell PDSCH corresponds is sent back normally and, therefore, additionally ensure normal communication between the base station and the UE.
The foregoing further details the communication method for an AC system through specific modalities shown in figure 1 and figure 2.
As shown in figure 3, the AC system in the mode is configured with a PCell and SCell, where the PCell is a UL-DL 3 configuration and SCell is a UL-DL 2 configuration, and a subframe marked with a number is a uplink subframe, where the number indicates the uplink AN of the PDSCH sent from which downlink subframe needs to be sent back by the current uplink subframe. The modality uses the subframe index n = 8 as an example. By virtue of Figure 3, PCell subframe 8 is a downlink link subframe. The modality includes the following steps:
Step 301: Send PDSCH information to a UE via a base station via a subframe 8 of a SCell.
Step 302: Receive the PDSCH information from the UE
32/82 sent by a base station via subframe 8 of the
SCell.
Step 303: Send an AN of the PDSCH information sent in a subframe 3 of a PCell back to the UE.
In the step, the UE, according to the synchronism relationship to which PCell subframe 8 corresponds, sends back an AN of the PDSCH information sent in a PCell. In view of figure 3, according to the synchronism relationship to which PCell subframe 8 corresponds, the subframe that sends back the PDSCH AN of PCell subframe 8 is PCell subframe 3; therefore, in the step, the UE sends back the PDSCH AN sent from SCell subframe 8 in PCell subframe 3.
Step 304: Receive, by the base station, AN of the PDSCH information sent by the UE in PCell subframe 3.
In another embodiment of the present invention, in the step, because according to the synchronism ratio of the
SCell the subframe of sending back a PDSCH AN from SCell subframe 8 in a SCell is a subframe, and in a PCell, subframe 2 is also an uplink subframe; therefore, in step 303, the UE sends back, according to the synchronism ratio to which SCell subframe 8 corresponds, the AN of PDSCH information sent in PCell subframe 2. Thus, in step 304, a base station receives the AN from the PDSCH information sent in PCell subframe 2 by the UE.
In another embodiment of the present invention, the UE can still compare the return latency of subframes 2 and 3 indicated above to send back the AN of the PDSCH sent on a PCell in the two indicated modes
33/82 previously, and the return latency of subframe 2 is relatively small; therefore, in step 303, the UE adopts the second corresponding mode, that is, according to the SCell synchronism ratio, the AN of the PDSCH information sent is sent back in PCell subframe 2. In step 304, the base station receives AN from the PDSCH information sent by the UE in PCell subframe 2.
The foregoing similarly uses an AC system with the UL-DL configuration shown in figure 3 as an example to further detail the communication method for the CA system shown in figure 1 and figure 2. In the modality, an index of subframe n = 4 is used as an example. In view of Figure 3, PCell subframe 4 is a rising link subframe. The modality includes the following steps:
Step 401: Send PDSCH information to a UE through a base station via a SCell subframe 4.
Step 402: Receive, through the UE, the PDSCH information sent by a base station through sub-frame 4 of SCell.
Step 403: Send back an AN of the PDSCH information sent in a PCell subframe 2 by the UE.
Step 404: Receive, for an base station, AN gives PDSCH information sent by the UE at the PCell subframe 2, Because of a subframe at the which subframe 4 gives SCell sends from back, according to the relationship in
SCell synchronism, an AN of the PDSCH information sent to be subframe 2, and in a PCell, subframe 2 is also an uplink subframe, in the UE mode, according to the synchronism relation to which subframe 4 gives
34/82
SCell matches, sends back the AN of PDSCH information sent in PCell subframe 2, and correspondingly the base station receives the AN of PDSCH information sent in PCell subframe 2.
The foregoing similarly uses an AC system with the UL-DL configuration shown in figure 3 as an example to further detail the communication method for the CA system shown in figure 1 and figure 2. In the modality, an index of subframe n = 3 is used as an example. In view of Figure 3, PCell subframe 3 of an uplink subframe. The modality includes the following steps:
Step 501: Send PDSCH information to a UE through a base station via a SCell subframe 3.
Step 502: Receive, through the UE, the PDSCH information sent by a base station through subframe 3 of the
SCell.
Step 503: According to a predetermination, send an AN of the PDSCH information sent in the subframe back to the UE in a PCell whose latency is lower in the SCell subframe 3.
Step 504: Receive, by a base station, AN of the PDSCH information sent by the UE in PCell subframe 2.
Because of a subframe in which subframe 3 of the
SCell sends back, according to SCell's sync ratio, AN of the PDSCH information being a subframe 7, and in a PCell, subframe 7 is a downlink subframe and cannot perform AN return. Therefore, in the modality, the UE, according to a predetermination, selects the link sub-frame of
35/82 climb 2 whose latency is the lowest in relation to SCell subframe 3 on a PCell to send back an AN of the PDSCH information sent. Correspondingly, the base station receives AN from the PDSCH information sent in PCell subframe 2.
It should be noted that, in the mode of the present invention, after sending back the AN to which the PDSCH of the downlink subframe of SCell corresponds to the uplink subframe of PCell, the process number of the automatic retransmission request hybrid HARQ (Hybrid Automatic Repeat Request) from SCell will be changed.
The SCell downlink HARQ process number change is used as an example (suppose that two TDD carriers are aggregated):
If the PCell is an UL-DL 2 configuration and the SCell is an UL-DL 1 configuration, according to the synchronism relationship between the PDSCH of each carrier and the AN, the process number of the PCell downlink HARQ is 10, and the SCell downlink HARQ process number is 7; after adopting the technical solutions provided by the modality of the present invention, the PCell downlink HARQ process number is not changed, and the SCell downlink HARQ process number increases from 7 to 8.
If the PCell is an UL-DL 1 configuration and the SCell is an UL-DL 2 configuration, according to the synchronism relationship between the PDSCH of each carrier and the AN, the process number of the PCell downlink HARQ is 7, and the SCell downlink HARQ process number is
36/82
10; after adopting the technical solutions provided by the modalities of the present invention, the PCell downlink HARQ process number is not changed, and the SCell downlink HARQ process number decreases from 10 to 9.
As shown in figure 4, one embodiment of the present invention additionally provides a communication method for an AC system, based on a base station. The CA system is configured with a PCell and a SCell, where the PCell and SCell have different UL-DL configurations, and the modality includes the following steps:
Step 601: Generate the UL_grant scheduling information to schedule the physical PUSCH uplink sharing channel of an upstream n frame of a SCell.
Here, n is a subframe index.
Optionally, if PCell's subframe n is an uphill link subframe, the modality includes:
Step 602: Send the UL_grant scaling information of a UE's PUSCH via a subframe q or a subframe y of PCell, where the q, according to the UL_grant synchronism relation to which the subframe n of PCell corresponds, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information of PCell subframe n, eoy, according to the UL_grant synchronism ratio to which SCell subframe n corresponds, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information from SCell subframe n.
In the step, the base station preferably chooses to use
37/82 the PCell subframe q to send the PUSCH scheduling information to the UE. Because the PCell subframe n is an uphill link subframe, according to the UL_grant sync ratio to which the PCell subframe n corresponds, sending the UL_grant PUSCH scheduling information from the PCell subframe is in the subframe q PCell's subframe, that is, the subframe of PCell is a downlink subframe, and the base station can send the UL_grant scheduling information to the UE via PCell's subframe q in order to effectively ensure normal communication between the base station and the UE.
Optionally, according to SCell's sync ratio, subframe y sends UL_grant to which subframe n of SCell corresponds, and on a PCell, subframe y is also a downlink subframe. The base station can similarly send the UL_grant scheduling information to the UE via PCell's subframe y; therefore, in the step, the base station can send the UL_grant scheduling information from the PUSCH to the UE via the PCell subframe y.
In addition, in another embodiment of the present invention, in step, the base station may also select, from subframe q and subframe y of PCell, a subframe to send the UL_grant scheduling information from the PUSCH to the UE. For example, the base station selects, from subframe q and subframe y of PCell, a subframe that has the lowest latency from receiving the UL_grant scheduling information from the PUSCH to send the PUSCH through the UE and sends the UL_grant scheduling information from PUSCH to the UE.
Optionally, if PCell subframe n is a
38/82 downlink link sub-frame, the modality includes:
Step 603: If the PCell subframe is a downlink subframe, send the PUSCH UL_grant scheduling information to the UE via the PCell subframe, and if the PCell subframe is an uplink subframe , according to pre-established or locally obtained information, send the UL_grant scheduling information from the PUSCH to the UE via a downlink sub-frame on a PCell and specified by the pre-established or locally obtained information.
The information obtained locally from the base station can be information regarding the service status of the current system and the load balancing condition obtained by the base station and others, and according to the information obtained locally, the base station determines the subframe that sends the UL_grant scheduling information of the PUSCH on a PCell.
In the scenario where the base station sends the PUSCH UL_grant scheduling information according to the information obtained locally, the base station needs to send a notification to the UE so that the UE gets to know the subframe that sends the PUSCH UL_grant scheduling information on a PCell.
The communication method provided by the modality of the present invention for an AC system, in the AC system where each carrier has a distinct UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
39/82
Corresponding to the method in figure 4, an embodiment of the present invention additionally provides a communication method for a CA system, based on the UE serving the base station, as shown in figure 5:
If the PCell subframe n is an uphill link subframe, optionally, the modality includes:
Step 701: Receive the UL_grant scheduling information from the SCUS subframe n PUSCH information, sent in a subframe q or a subframe y of the PCell by a base station, where the q, according to the UL_grant synchronization relation to which the subframe PCell n corresponds, it is a subframe index of a subframe that sends the PUSCH UL_grant scheduling information from PCell subframe n, eoy, according to the UL_grant synchronism relation to which SCell subframe n corresponds, is an index subframe of a subframe that sends the UL_grant PUSCH scheduling information from SCell subframe n.
During the normal communication process, the PUSCH synchronization relationship to which the SCell corresponds must be known by both the base station and the UE, that is, the UE knows which subframe that sends the PUSCH UL_grant scheduling information in one PCell; and, therefore, in the step, the UE adopts a receiving mode corresponding to the base station side to receive the UL_grant scheduling information to schedule the PUSCH of the SCell n uplink subframe.
Because the PCell subframe q is a downlink subframe, the base station can send the UL_grant scheduling information to PUSCH scheduling
40/82 of the SCell n uplink subframe through the PCell subframe q. When PCell's subframe y is a downlink subframe, the base station similarly can send the UL_grant scheduling information to scale PUSCH from SCell's uplink n subframe via PCell's subframe, and the UE it can receive UL_grant scheduling information via PCell's subframe y to effectively ensure that the PDSCH AN of SCell's subframe n is sent back normally and to ensure normal communication between the base station and the UE.
Additionally, in yet another embodiment of the present invention, if a base station selects, from a subframe q and a subframe y from PCell, a subframe that has the lowest latency from receiving the UL_grant scheduling information from the PUSCH to send the PUSCH through UE, it sends the UL_grant scheduling information from the PUSCH to the UE. In the step, the UE receives the UL_grant scheduling information from the SCUS subframe n PUSCH information, sent by the subframe that has the lowest latency from receiving the PUSCH UL_grant scheduling information to send the PUSCH by the UE and which is selected from the subframe q and the subframe y of PCell by the base station.
If PCell subframe n is a downlink subframe, optionally, the modality includes:
Step 7 02: If the PCell subframe is a downlink subframe, receive the UL_grant scheduling information from the SCell subframe n PUSCH information, sent in the PCell subframe by a base station, and if the subframe y from the PCell is a connection link subframe
41/82 climb, according to a predetermination or notification from the base station, receive the UL_grant PUSCH scheduling information from SCell subframe n, sent by the base station in a downlink subframe on a specified PCell for the pre-establishment and notification of the base station.
Step 703: According to the scheduling information UL_grant of the PUSCH, send the PUSCH in subframe n of SCell.
A communication method provided by the modality of the present invention for an AC system, in the AC system where each carrier has a distinct UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
The foregoing further details the communication method for an AC system through specific modalities shown in figure 4 and figure 5. As shown in figure β, the AC system in the mode is configured with a PCell and a SCell, where the PCell is an UL-DL 1 configuration and the SCell is an UL-DL 2 configuration, and a subframe marked with a number is an uplink subframe, where the number indicates which downlink subframe the UL_grant to scale in the PUSCH of the current uplink subframe is sent. The modality uses the subframe index n = 2 as an example. By virtue of figure 6, PCell subframe 2 is a rising link subframe, and SCell subframe 2 is a rising link subframe. The modality includes the following steps:
Step 801: Generate, through a base station, the information
42/82 scheduling UL_grant to schedule physical PUSCH uplink sharing channel of a SCell uplink 2 subframe.
Step 802: Send, via the base station, the UL_grant PUSCH scheduling information from the SCell Uplink Subframe 2 to a UE through a subframe 6 of a PCell.
Step 803: Receive, by the UE, the UL_grant scheduling information to schedule the PUSCH of the SCell uplink subframe 2, sent by the base station via the subframe 6 of the PCell.
Step 804: According to the PUSCH UL_grant scheduling information, send the PUSCH in SCell subframe 2 by the UE.
In this mode, PCell subframe 2 is an uplink subframe. As shown in figure 6, according to the synchronism ratio to which PCell subframe 2 corresponds, the UL_grant to which PCell subframe 2 corresponds is sent in PCell subframe 6. Therefore, in the modality, the base station sends the UL_grant PUSCH scheduling information from SCell's uplink link subframe 2 to the UE via PCell subframe 6.
The foregoing further details the communication method for an AC system through specific modalities shown in figure 4 and figure 5. As shown in figure 7, the AC system in the modality is configured with a PCell and a SCell, where PCell is a UL-DL 5 configuration and SCell is a UL-DL 2 configuration, and a subframe marked with a number is a subframe of
43/82 uphill link, where the number indicates in which down link subframe the UL_grant to scale the current uphill link subframe PUSCH is sent. The modality uses the subframe index n = 7 as an example. By virtue of figure 7, PCell subframe 7 is a rising link subframe, and SCell subframe 7 is a rising link subframe. The modality includes the following steps:
Step 901: Generate, by a base station, the UL_grant scheduling information to schedule the physical PUSCH uplink sharing channel of an upstream link subframe 7 of a SCell;
Step 902: Send, through the base station, the UL_grant PUSCH scheduling information from the SCell Uplink Subframe 7 to a UE through a subframe 3 of a PCell.
Step 903: Receive, by the UE, the UL_grant scheduling information to schedule the PUSCH of the SCell Uplink Subframe 7, sent by the base station via PCell Subframe 3.
Step 904: According to the PUSCH UL_grant scheduling information, send the PUSCH in the SCell subframe 7 by the UE.
In this modality, PCell subframe 7 is an uphill link subframe. As shown in figure 7, according to the synchronism ratio to which SCell subframe 7 corresponds, the UL_grant to which SCell subframe 7 corresponds is sent in SCell subframe 3. Therefore, the base station sends the UL_grant PUSCH scheduling information from the data link subframe.
44/82 SCell climb 7 to the UE through subframe 3 of SCell
PCell.
It should be noted that, in the modality, after the PUSCH UL_grant of the SCell uplink subframe n is sent to the PCell downlink subframe, the process number of the SCell uplink link HARQ will change.
Corresponding to the communication method shown in figure 1, an embodiment of the present invention additionally provides a UE for a CA system, where the CA system is configured with a SCell and a PCell, and as shown in figure 8 includes:
a receiving unit, configured to receive PDSCH information sent by a base station via a sub frame n of a SCell; and a feedback unit 11, configured to:
if the subframe n of a PCell is a downlink subframe:
send back an ACK / NACK of the PDSCH information sent in a subframe m or a subframe p of the primary cell PCell, where the m, determined according to the ACK / NACK synchronism ratio to which subframe n of the primary cell PCell corresponds, is a subframe index of a subframe that sends back the ACS / NACK of the PDSCH of subframe n of the primary cell PCell in a primary cell PCell, eop, determined according to the synchronism ratio ACK / NACK to which the subframe n of SCell matches, it is a subframe index of a subframe that sends back the ACS / NACK of the PDSCH of subframe n of SCell
45/82 in a SCell;
or if PCell subframe n is an uphill link subframe:
if the subframe p of the primary cell PCell is a subframe of the uplink, send back to ACK / NACK of the PDSCH information sent in subframe p of the primary cell PCell; if the subframe p of the primary cell PCell is a subframe of the downlink, according to a predetermination or a notification from the base station, send back to ACK / NACK the PDSCH information in the sublink frame of the uplink in a primary PCell cell and specified by the pre-establishment and notification of the base station, and, for example, sending back an AN of the PDSCH information sent on an uphill link subframe that has the lowest latency of sending back to the AN of the PDSCH information sent on a PCell ;
where, n, m and p are indexes of subframes.
The UE provided by the modality of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that the UH link AN to which SCell corresponds is sent back normally and therefore , can effectively ensure normal communication between the base station and the UE.
Optionally, feedback unit 11 can still be configured to:
When PCell subframe n is a downlink subframe, select a subframe that has the lowest latency to send back to AN of the PDSCH information between
46/82 is the subframe m and the subframe p of PCell to send back the AN of the PDSCH information sent.
In addition, because the SCell Uplink AN is sent back into the PCell Uplink Subframe, to prevent the PCell Uplink Subframe from sending an unbalanced number of ANs and ensure test performance of ANs, the base station can perform change processing from the subframe level to a specified carrier, and performing change from the subframe level to the specified carrier causes the number of ANs sent back on the PCell link up subframe to tend to stay balanced, effectively ensuring the ANs test performance, and the carrier's subframe configuration after being changed needs to be known by both the base station and the UE; therefore, the UE of the embodiment of the present invention, as shown in figure 9, further includes:
an awareness unit 12, configured to be aware of the processing of changing the subframe level to a wireless PCell frame in relation to a wireless SCell frame; or to learn about the processing of changing the subframe level for the wireless SCell board in relation to the wireless board of the SCell
PCell.
Specifically, the knowledgeable unit 12 can learn that the base station performs subframe level change processing for PCell or SCell through notification from the base station or preset.
Optionally, receiving unit 10 is
47/82 additionally configured to receive downlink link control (PDCCH) physical channel information sent by the base station via sub-frame of PCell, where the PDCCH information is used to scale the PDSCH information sent by the base station via the subframe n of SCell.
Corresponding to the communication method shown in figure 2, one embodiment of the present invention additionally provides a base station for an AC system, where the AC system is configured with a SCell and a PCell, and as shown in figure 10 includes:
a sending unit 20, configured to send PDSCH information to a UE via a sub frame of a SCell; and a receiving unit 21, configured for: if subframe n of a PCell is a downlink subframe:
send back an ACK / NACK of the PDSCH information sent in a subframe m or in a subframe p of the PCell, where the m, determined according to the ACK / NACK synchronism relation to which the subframe n of the PCell corresponds, is an index of subframe of a subframe that
send back the ACK / NACK PDSCH's subframe PCell n on a PCell, and the p, determined according to the relation of ACK / NACK timing to which subframe n from SCell matches, is an index subframe of a subframe that send back the ACK / NACK PDSCH's subframe n from SCell in a SCell; or if the subframe PCell n is a subframe of
uphill link:
48/82 if the subframe p of the PCell is a subframe of the uplink, receive an ACK / NACK of the PDSCH information sent by a UE in the subframe p of the PCell, and if the subframe of the PCell is a subframe of the downlink, receiving an ACK / NACK of the PDSCH information sent by the UE according to a pre-set or notification from the base station in the uplink subframe on a PCell and specified by the pre-set and notification from the base station;
where, n, m and p are indexes of subframes.
The UE provided by the modality of the present invention for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that the UH link AN to which SCell corresponds is sent back normally and therefore , can effectively ensure normal communication between the base station and the UE.
Optionally, a receiving unit 21 can still be configured to:
when PCell subframe n is a downlink subframe, receive the AN of PDSCH information sent by the UE in subframe m or PCell subframe n that has the lowest latency to send back the information AN
PDSCH sent.
In addition, because the SCell Uplink AN is sent back into the PCell Uplink Subframe, to prevent the PCell Uplink Subframe from sending an unbalanced number of ANs and ensure test performance of ANs, the base station can perform subframe level change processing for a
49/82 specified carrier, and executing a change from the subframe level to the specified carrier causes the number of ANs sent back in the PCell's uplink subframe to become balanced and, therefore, the base station provided by the modality of the present invention , as shown in figure 1, additionally includes:
one unit in change 22, configured for perform processing in change of the level subframe for a wireless whiteboard gives PCell in relation to a picture without SCell wire; or to perform processing change subframe level for the board wireless from SCell in
regarding the wireless PCell board.
In addition, to make the subframe configuration of the carrier after being changed known to both the base station and the UE, the sending unit 20 can also send a notification to the UE regarding change processing.
Optionally, the sending unit 20 is additionally configured to send downlink link control (PDCCH) physical channel information via the PCell subframe n, where the PDCCH information is used to scale the PDSCH information sent via the subframe n gives
SCell.
Optionally, the receiving unit 20, if PCell's subframe n is an uplink subframe, does not scale the PDSCH of SCell's subframe n.
Corresponding to the communication method shown in figure 4, one embodiment of the present invention additionally provides a base station for an AC system, where the AC system is configured with a SCell and a PCell, and such
50/82 as shown in figure 12 includes:
a generation unit 30, configured to generate UL_grant scheduling information for scheduling PUSCH of a sub-frame of the n-climb of a SCell; and a stepping unit 31, configured to:
if PCell subframe n is an uphill link subframe:
send the UL_grant scheduling information from the
PUSCH for one EU by means of one subframe q or in one subframe y gives PCell, where what, in a deal with The relationship in timing UL grant which O subframe n gives PCell
corresponds to, is a subframe index of a subframe that sends the PUSCH scaling information UL_grant of PCell's subframe n, and y, according to the UL_grant synchronism ratio to which SCell's subframe n corresponds, is a subframe index of a subframe that sends the PUSCH UL_grant scheduling information from SCell n subframe;
or if the subframe n of a PCell is a downlink subframe:
if the PCell subframe y is a downlink subframe, send the PUSCH UL_grant scheduling information to the UE via the PCell subframe q, and if the PCell subframe y is an uplink subframe, according with pre-established or locally obtained information, send the UL_grant scheduling information from the PUSCH to the UE via a downlink sub-frame on a specified PCell
51/82 for the pre-establishment and the information obtained locally; where, n, q and y are indexes of subframes.
The base station provided by the modality for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
Optionally, when PCell subframe n is an uplink subframe, the scaling unit can still be configured to:
between subframe q and subframe y of PCell, select a subframe that has the lowest latency from receiving the UL_grant scheduling information from the PUSCH to send the PUSCH through the UE and sending the UL_grant scheduling information from the PUSCH to the UE.
Corresponding to the communication method shown in figure 5, an embodiment of the present invention additionally provides a UE for a CA system, where the CA system is configured with a SCell and a PCell, and as shown in figure 13 includes:
a receiving unit 40, configured for: if PCell subframe n is an uphill link subframe:
receive the UL_grant scheduling information from the SCUS subframe n PUSCH information, sent in a subframe q or a subframe y from PCell by a base station, where the q, according to the UL_grant synchronization relation to which the subframe n of PCell matches, is a subframe index of a subframe that sends the information
52/82 PUSCH scaling UL_grant of PCell subframe n, and the y, according to the UL_grant sync ratio to which SCell subframe n corresponds, is a subframe index of a subframe that sends the information of
5 staggering UL grant the PUSCH of subframe n from SCell; or if the subframe n da PCell is a subframe of downlink: if the subframe y da PCell is a subframe of 10 downlink, receive the information staggering UL information grant PUSCH of the subframe n from SCell,
sent in PCell's subframe y by a base station, and if PCell's subframe y is an uphill link subframe, according to a predetermination or notification from the base station, receive the UL_grant scheduling information from subframe n PUSCH the SCell, sent, by the base station, in a downlink subframe in a PCell and specified by the pre-establishment and notification of the base station;
where, n, q and y are indexes of subframes; and a sending unit 41, configured to send, according to the PUSCH UL_grant scheduling information, the PUSCH in SCell subframe n.
The UE provided by the modality for an AC system, in the CA system where each carrier has a different UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
Optionally, the receiving unit 40 can still be configured to:
53/82 receive the UL_grant scheduling information from the SCell subframe n PUSCH information, sent by the subframe that has the lowest latency from receiving the PUSCH UL_grant scheduling information to send the PUSCH through the UE and which is selected from the subframe q and the PCell subframe y by the base station.
One embodiment of the present invention provides a communication method for a CA system, based on a UE. As shown in figure 14, the modality includes the following steps:
Step 1401: Receive PDSCH downlink sharing physical channel information sent by a base station via a subframe n of a secondary cell.
Step 1402: In a subframe k of a primary cell, sending back an ACK / NACK of the sent PDSCH information, where ok, determined according to the ACK / NACK synchronization ratio of a first reference UL-DL TDD configuration, is a subframe index of a subframe that sends back the ACK / NACK of subframe n of the secondary cell in a primary cell.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration; or the first reference UL-DL TDD configuration is a UL-DL TDD 5 configuration.
For example, as shown in figure 15, the primary cell is assumed to be a UL-DL TDD 2 configuration, the secondary cell is a UL-DL TDD 2 configuration, both cells are aggregated to a UE for data transmission, and it is assumed that the PDSCH to which the PDCCH of
54/82 corresponding secondary cell is sent to the primary cell, that is, in a carrier-escalation scenario, and it is assumed that the uplink ACK / NACK must be sent back to a primary cell. Thus, when subframe n of the secondary cell is a downlink 0, 1, 4, 5, 6 or 9, subframe n of the corresponding primary cell is also a subframe of downlink, where subframe n of the primary cell can be used to scale PDSCH from subframe n of the secondary cell when crossing the carrier, and the ACK / NACK return synchronism to which the PDSCH corresponds can be established according to the primary cell's sync ratio, that is, the first Reference UL-DL TDD configuration is the primary cell's UL-DL TDD configuration. Specifically, the ACK / NACK to which the PDSCH of subframes 5 and 6 of the secondary cell corresponds is in subframe 2 of the primary cell, and the ACK / NACK return to which the PDSCH of subframe 8 of the secondary cell corresponds is in subframe 3 of the cell primary, and more. It also includes that the first reference UL-DL TDD configuration is the UL-DL TDD 5 configuration, that is, configuration of nine downlink link subframes and an uplink link subframe. For the primary cell whose subframes n are downlink subframes 3 and 8, while subframes n of the corresponding primary cell are uplink subframes, the base station does not scale the PDSCH of the UE in the subframes; therefore, the UE can assume that the base station does not schedule the PDSCH of subframes 3 and 8.
Optionally, if a primary cell and a cell
55/82 secondary have different UL-DL TDD configurations and the following conditions exist: for a first subframe, the subframe of the primary cell is a subframe of the uplink while that of the secondary cell is a subframe of the downlink; for a second subframe, the subframe of the primary cell is a subframe of the downlink link whereas that of the secondary cell is a subframe of the uplink (vice versa), the ACK / NACK of the secondary link of the secondary cell fails to be sent back according to the timing of the primary cell or the secondary cell, and the ACK / NACK can be sent back by the secondary cell according to the uplink ACK / NACK timing of the UL-DL TDD 5 configuration. For example, the primary cell is configuration 2 and the secondary cell is configuration 3, or the primary cell is configuration 2 and the secondary cell is configuration 4, or the primary cell is configuration 1 and the secondary cell is configuration 3.
In the technique method, ACK / NACK resources are easily allocated, because if the secondary cell sends back to ACK / NACK in a primary cell according to its own timing relationship, there may be an ACK / NACK resource conflict; for example, if the ACK / NACK to which subframe 9 of the secondary cell corresponds is sent back to subframe 7 of the primary cell according to its own sync ratio, the base station is required to resolve the conflict because of the subframe 7 of the primary cell does not reserve implicit ACK / NACK resources for subframe 9; conversely, if the ACK / NACK to which subframe 9 of the secondary cell corresponds is sent
56/82 back in subframe 3 of the primary cell according to the sync ratio of the primary cell, the base station will not be scaled to resolve the ACK / NACK resource conflict because subframe 3 of the primary cell reserves ACK / NACK resources implicit for subframe 9. In addition, the ACK / NACK return latency is shortened, just as the ACK / NACK send latency to which subframe 9 corresponds to subframe 3 is 4, while the send latency of back to ACK / NACK for subframe 7 is 8. For subframes 3 and 8 of the secondary cell, the non-scaling guideline by the base station is adopted, which can be easily implemented, and the secondary cell can send back to ACK Uplink link / NACK according to a complete monitoring of the primary cell sync ratio.
Optionally, the first reference UL-DL TDD configuration uses a set of public uphill link subframes or a subset of public uphill link subframes at the same time in a primary cell and the secondary cell as uphill link subframes, and other subframes are the UL-DL TDD configuration of the downlink link subframe.
For example, as shown in figure 16, the primary cell is assumed to be a UL-DL TDD configuration
1 and the secondary cell is an UL-DL TDD 3 configuration, where the two cells are attached to a UE for data transmission, and it is assumed that the uplink ACK / NACK must be sent back into a primary cell. Because subframe 4 is a downlink subframe for the primary cell and a downlink subframe
57/82 climb to the secondary cell; conversely, subframes 7 and 8 are uplink subframes for the primary cell and downlink subframes for the secondary cell; therefore, the primary cell's uplink ACK / NACK can be established according to its own timing, but the secondary cell's uplink ACK / NACK timing cannot be fully established according to the secondary cell's timing. nor with the timing of the primary cell. In this situation, the ACK / NACK timing of the secondary cell can be established according to the first reference timing, and the first reference timing can use public uplink subframes of the same time in a primary and the secondary cell as a subframe. uplink link, and other subframes are the UL-DL TDD configuration uplink link ACK / NACK sync ratio of the downlink subframes, for example, reference configuration 1 in figure 16 is configuration 4, that is, the public uplink subframes of the same time in a primary cell and the secondary cell are the uplink subframes 2 and 3, and other subframes are downlink subframes; or the first reference timing can use the subset of a set of public uphill link subframes at the same time in a primary cell and the secondary cell as an uphill link subframe, and eight other subframes are the ACK synchro ratio. Uplink link / NACK of the downlink link UL-DL TDD configuration, for example, reference configuration 2 in figure 16 is configuration 5, that is, the
58/82 ι
• set of public uphill link subframes at the same time in a primary cell and the secondary cell includes uphill link subframes 2 and 3, a subframe of which can be an uphill link 2 subframe, and nine other subframes are all downlink link subframes. The solution can have the secondary cell send back up link ACK / NACK according to a complete reference configuration follow-up.
Optionally, if the downlink subframe of the secondary cell corresponds to at least two types of the first reference UL-DL TDD configurations, additionally include: determine the first reference UL-DL TDD configuration to which the subframe n of the secondary cell matches from at least two types of the first reference UL-DL TDD configurations; ok, determined according to the ACK / NACK synchronization ratio of the first reference UL-DL TDD configuration to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back to ACK / NACK to which subframe n of the secondary cell corresponds to a primary cell.
For example, as shown in figure 17, the primary cell is the UL-DL TDD 2 configuration and the secondary cell is the UL-DL TDD 2 configuration, where the two cells are aggregated to a UE for data transmission, and the Uplink ACK / NACK must be sent back to a primary cell. In this way, the downlink subframes 4 and 9 of the secondary cell can form a first group, and the remaining downlink subframes can form a second group. The uplink link ACK / NACK of the
59/82 first group subframe can be sent back according to the first type of ACK / NACK timing ratio of the first reference UL-DL TDD configuration; for example, the first type of the first UL-DL configuration
Reference TDD is the primary cell configuration or other settings; the rising link ACK / NACK of the second group subframe can be sent back according to the second type of ACK / NACK sync ratio of the first reference UL-DL TDD configuration;
for example, the second type of the first reference UL-DL TDD configuration is the secondary cell configuration or other configurations. The solution decreases the ACK / NACK return latency for certain secondary cell downlink subframes.
Optionally, if the subframe n of the primary cell is a downlink subframe, additionally include: receiving PDCCH sent by the base station in subframe n of the primary cell, where the PDCCH is used to scale the PDSCH of subframe n of the secondary cell.
One embodiment of the present invention provides user equipment to perform the method indicated above. As shown in figure 18, user equipment includes:
a receiving unit 1801, configured to receive PDSCH downlink sharing physical channel information sent by a base station via a subframe n of a secondary cell;
a 1802 processing unit, configured for a k subframe, determined according to the ACK / NACK synchronization ratio of a first UL-DL TDD configuration
60/82 of reference, and is a subframe index of a subframe that sends back the ACK / NACK to which subframe n of the secondary cell corresponds in a primary cell; and a sending unit 1803, configured to send back to ACK / NACK the PDSCH information received by the receiving unit 1801 in subframe k determined by processing unit 1802 in a primary cell.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration; or the first reference UL-DL TDD configuration is a UL-DL TDD 5 configuration.
Optionally, the first reference UL-DL TDD configuration uses a set of public uphill link subframes or a subset of public uphill link subframes at the same time in a primary cell and the secondary cell as uphill link subframes, and other subframes are the UL-DL TDD configuration of the downlink link subframe.
Optionally, if the secondary cell's downlink link subframe corresponds to at least two types of the first reference UL-DL TDD configurations, the processing unit is additionally configured to determine the first reference UL-DL TDD configuration to which the subframe n of the secondary cell corresponds from at least two types of the first reference UL-DL TDD configurations; configured specifically for k, determined according to the ACK / NACK sync ratio of the first reference UL-DL TDD configuration to which the sub cell n frame corresponds, and is a sub frame index of a
61/82 subframe that sends back the ACK / NACK to which subframe n of the secondary cell corresponds in a primary cell.
Optionally, if subframe n of the primary cell is a downlink subframe, the receiving unit is additionally configured to receive PDCCH sent by the base station in subframe n of the primary cell, where the PDCCH is used to scale the PDSCH of subframe n of the secondary cell.
Regarding the effects of user equipment, reference can be made to the description of modalities.
One embodiment of the present invention provides a communication method for a CA system, based on a UE. As shown in figure 19, the modality includes the following steps:
Step 1901: Send PDSCH downlink sharing physical channel information to user equipment via sub-frame n of a secondary cell.
Step 1902: In a subframe k of a primary cell, receive an ACK / NACK of the PDSCH information sent back by the user equipment, where ok, determined by the user equipment according to the ACK / NACK synchronization ratio of a first configuration Reference UL-DL TDD, is a subframe index of a subframe that sends back the ACK / NACK of subframe n of the secondary cell in a primary cell.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration, or the first reference UL-DL TDD configuration is a UL-DL TDD 5 configuration.
62/82
Optionally, the first reference UL-DL TDD configuration uses a set of public uphill link subframes or a subset of public uphill link subframes at the same time in a primary cell and the secondary cell as uphill link subframes, and other subframes are the UL-DL TDD configuration of the downlink link subframe.
Optionally, if the secondary cell's downlink link subframe corresponds to at least two types of the first reference UL-DL TDD configurations, ok, determined according to the first reference UL-DL TDD configuration to which the cell's subframe n Secondary corresponds and is determined by the user equipment from at least two types of the first reference UL-DL TDD configurations, it is a subframe index of a subframe that sends back subframe n of the secondary cell in a primary cell.
Optionally, where subframe n of the primary cell is a downlink subframe, additionally include: receiving PDCCH sent by the base station in subframe n of the primary cell, where the PDCCH is used to scale the PDSCH of subframe n of the secondary cell.
Optionally, if the subframe n of the primary cell is a subframe of the rising link, PDSCH of subframe n of the secondary cell is not staggered.
Regarding the effects of the solution, reference can be made to figure 14.
One embodiment of the present invention provides a base station for carrying out the method indicated above. As shown in figure 20, the base station includes:
63/82 a sending unit 2001, configured to send PDSCH downlink sharing physical channel information to user equipment via a subframe n of a secondary cell; and a receiving unit 2002, configured to receive, in a subframe k of a primary cell, an ACK / NACK of the PDSCH information received by the receiving unit 2001 and sent back by the user equipment, where ok, determined by the user equipment according to the ACK / NACK timing ratio of a first reference UL-DL TDD configuration, it is a subframe index of a subframe that sends back to ACK / NACK of subframe n of the secondary cell in a primary cell.
Optionally, the first reference UL-DL TDD configuration uses a set of public uphill link subframes or a subset of public uphill link subframes at the same time in a primary cell and the secondary cell as uphill link subframes, and other subframes are the UL-DL TDD configuration of the downlink link subframe.
Optionally, if the secondary cell's downlink link subframe corresponds to at least two types of the first reference UL-DL TDD configurations, ok, determined according to the first reference UL-DL TDD configuration to which the cell's subframe n Secondary corresponds and is determined by the user equipment from at least two types of the first reference UL-DL TDD configurations, it is a subframe index of a subframe that sends back subframe n of the secondary cell in a primary cell.
64/82
Optionally, if subframe n of the primary cell is a downlink subframe, the sending unit is additionally configured to send PDCCH to user equipment in subframe n of the primary cell, where the PDCCH is used to scale the PDSCH of the subframe secondary cell n.
Optionally, if subframe n of the primary cell is a subframe of the uplink, the sending unit does not scale PDSCH of subframe n of the secondary cell.
Regarding the effects of the solution, reference can be made to figure 14.
One embodiment of the present invention provides a communication method for a CA system, based on a UE. As shown in figure 21, the modality includes the following steps:
Step 2101: Generate UL_grant scheduling information to schedule PUSCH of a sublink frame of the n-link of a secondary cell of a user device.
Step 2102: Send the PUSCH UL_grant scheduling information to the user equipment via the primary cell subframe j, where the j, determined according to the uphill link scheduling sync ratio of the first UL-DL TDD configuration of reference, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information from subframe n of the secondary cell.
Optionally, the uphill link scaling sync ratio of the first reference UL-DL TDD configuration includes: the PUSCH sync ratio that UL_grant corresponds to, or the
65/82 PHICH synchronism to which PUSCH corresponds, where PHICH is the downlink link ACK / NACK.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration, or the secondary cell UL-DL TDD configuration, or an UL-DL TDD 0 configuration, or an UL-DL TDD 6 configuration. or a UL-DL TDD 1 configuration.
Optionally, the j, determined according to a part of uphill link scheduling sync relationships in at least one UL-DL TDD configuration HARQ process, is a subframe index of a subframe that sends the UL_grant scaling information from PUSCH the sublink frame n of the secondary cell. The first reference UL-DL TDD configuration can be configuration 0 or 6.
Optionally, the j, determined according to part or all of the uphill link scheduling sync relationships in at least one uphill link index of the first reference UL-DL TDD configuration, is a subframe index of a subframe which sends the UL_grant PUSCH scheduling information of the sub-frame of the n-link of the secondary cell. The first reference UL-DL TDD configuration can be configuration 0.
The modality method (steps 2101 and 2102) (including the following EU-side method and double-sided apparatus) can still be applied for a dynamic subframes scenario. Specifically, a single cell (that is, a single carrier) is considered as an example. When the UL-DL TDD configuration is notified via the information
66/82 broadcast, the TDD configuration is also referred to as the backward compatibility TDD configuration, and if the current notified configuration is configuration 2, that is, DL: UL is 4: 1 (downward downward upward downward to downwards downwards upwards downwards downwards), the TDD system to be evolved will introduce dynamic subframes technology, that is, certain subframes in configuration 2 can be dynamically established to be an up link or a down link, for example , subframes 3 and 4 in configuration 2, that is, downward downward dynamic downward downward downward dynamic downward (dynamic indicates a dynamic subframe), and the dynamic subframe base station can scale the UE to send uplink data PUSCH or uplink ACK / NACK; otherwise, the UE tests PDCCH and other downlink link control channels for the downlink subframe according to the standard. Since a dynamic subframe is used to be a rising link at a certain time, the UL_grant that is sent in the dynamic subframe based on the original time sequence fails to be sent, and the original time sequence can be indicated as a first sequence time, that is, the time sequence determined by the UL-DL TDD configuration which is determined based on the broadcast information; for example, the uphill link escalation time sequence of configuration 2 is a dynamic subframe and used to be uphill link, the UL_grant to which subframes 2 and 7 based on the first time sequence correspond to failure to be sent. At this moment, a second sequence of
67/82 time can be introduced, which is similar to the synchronization ratio of the first reference UL-DL TDD configuration in the modality, and the second time sequence is used to determine uplink link scheduling and PHICH return time sequence .
For example, as shown in figure 22, the primary cell is assumed to be the UL-DL TDD 0 configuration, the secondary cell is an UL-DL TDD 3 configuration, both cells are aggregated for a UE for data transmission, and it is assumed that the UL_grant to which the PDCCH of the secondary cell corresponds is sent in a primary cell, that is, in a scenario of escalation through uphill link carriers, and it is assumed that the downlink ACK / NACK, also called the HARQ physical indication channel (HARQ Physical Indicator Channel, PHICH), must be sent back to a primary cell. At this point, if the secondary cell sends the UL_grant according to the secondary cell's uplink scheduling synchronism, the sending subframe of the UL_grant of the scaling subframe 2 is the subframe 8, but the subframe 8 of the primary cell is a uplink subframes and fails to send the UL_grant, and because subframe 4 of the primary cell is a downlink, and the primary cell does not have the uplink scheduling sync of the uplink subframe of the cell 4 secondary, the secondary cell fails to send the corresponding UL_grant or PHICH according to the primary cell or with a complete follow-up of the secondary cell's uplink escalation synchronism. In this way, the secondary cell can send the
68/82
UL_grant and the corresponding PHICH according to the uplink scheduling synchronism of the first reference UL-DL TDD configuration, and the first reference UL-DL TDD configuration can be configuration 0 or 6. As shown in the figure 23, it is assumed that the primary cell is the UL-DL TDD 0 configuration, the secondary cell is the UL-DL TDD 1 configuration, both cells are aggregated for a UE for data transmission, the PDSCH to which the cell's PDCCH secondary corresponds is sent to the primary cell, that is, in a scenario of scaling through carriers, and it is assumed that the PHICH must be sent back to a primary cell. At this point, the secondary cell sends the UL_grant and the corresponding PHICH according to the primary cell's uplink sync ratio. Specifically, the primary cell uplink scheduling sync is in close loop mode. An HARQ process is used as an example, where the uplink timing of the HARQ process of the PUSCH data packet in subframe 2 is {(5 or 6) -> 2, 6-> 3, 0-> 4, 0- > 7, l-> 8, 5-> 9, 5-> 2}, where the first item within the braces is the UL_grant timing for an initial PUSCH transmission packet, and each of the remaining items is PHICH timing for the PUSCH retransmission packet of the initial transmission packet. If the secondary cell sends the UL_grant and PHICH according to the primary cell's timing, the timing is {(5 or 6) -> 2, 6-> 3, 0-> 7, l-> 8, 5 -> 2 }, or {5 -> 2, 6-> 3, 0-> 7, l-> 8, 5-> 2}, or {6-> 2, 6-> 3, 0-> 7, l-> 8, 5-> 2}, where the first item is the UL_grant timing for a transmission packet
69/82 initial PUSCH, and each of the remaining items is PHICH timing for the initial transmission packet PUSCH retransmission packet. Based on the above, the third sync is a part of the uplink sync of the HARQ process of subframe 2 in the TDD 0 configuration of the primary cell, and because subframe 4 and 9 of the secondary cell are both link subframes of descent and the secondary cell does not need to send the UL_grant and the corresponding PHICH according to the primary cell's uplink synchronism. More specifically, the last two of the three synchronisms only use one set of the two sets of synchronisms of the climb link index in UL_grant, that is, a part of {(5 or 6) -> 2}, that is, 5-> 2 or 6-> 2, because the number of the downlink subframe of the primary cell is greater than the number of downlink subframes, and then the uplink index field in UL_grant is required to do the UL_grant stagger two uplink subframes, and the ratio of the uplink subframes and the subframes of the secondary cell is 4: 6, that is, the uplink index is not required, and then it is sufficient to determine one set in two sets of synchronisms of the primary link rise rate of the primary cell; or when adopting two sets of ascent link index synchronisms, it is only necessary to add the ascent link index field to the secondary cell's UL_grant, where the field can be a newly added bit, a mix code, or reuse the current bit, such as reusing the downlink designation indication (DAI, index
70/82 of the Descent Link Designation) of the UL_grant, and for this example reference can be made to the primary cell (UL-DL 0 configuration, a 6: 4 ratio of uplink and downlink link subframes) + secondary cell (UL-DL 6 configuration, a 5: 5 ratio of uplink and downlink link subframes), because each uplink subframe of configuration 6 only needs to send back a link ACK / NACK ascent to which a descent link subframe corresponds, and then DAI in the secondary cell's UL_grant can be reused as an ascent link index.
Similarly, it is assumed that the backward compatibility UL-DL TDD configuration is configuration 2 and that there is a dynamic subframe, and the directions of 10 subframes of a wireless frame are downwards downwards upwards dynamically downwards down down down up dynamic down, for an evolved UE, the time sequence relationship may depend on the second time sequence; for example, the second time sequence is used to determine the rise link schedule and PHICH return time sequence, similar to the first reference UL-DL TDD configuration. For example, the second time sequence may be the synchronization ratio of the UL-DL TDD 0 configuration. In this situation, the UE may determine, according to a part of the uphill link staggering ratio of at least one process HARQ of the UL-DL TDD 0 configuration, the subframe that sends the UL_grant PUSCH scheduling information of the uplink subframe n. In addition, the UE may determine, in agreement with a party or with
71/82 all sync ratios in the uplink scheduling sync relationships of at least one uplink index of the UL-DL TDD 0 configuration, the subframe that sends the UL_grant PUSCH scheduling information from the link subframe of climb n. For detailed examples, reference can be made to the examples given above with respect to the primary and secondary cells except that the primary cell timing is understood as the timing of the backward compatibility ULDL TDD configuration, such as the previous configuration 2, and the Secondary cell timing is understood as the timing determined by the second time sequence indicated above, as well as timing determined by the previous 0 configuration.
As another example, as shown in figure 24, it is assumed that the primary cell is the UL-DL TDD 0 configuration, the secondary cell is an UL-DL TDD 2 configuration, both cells are aggregated for a UE for transmission of data, and it is assumed that the UL_grant to which the PUSCH of the secondary cell corresponds is sent to the primary cell, that is, in a scenario of scaling through carriers, and it is assumed that the PHICH must be sent back to a primary cell . If the secondary cell sends the corresponding UL_grant and PHICH according to its own uphill link scheduling timing, the send is performed in subframes 3 and 8. However, subframes 3 and 8 of the primary cell are both uphill link subframes. and fail to send the UL_grant and PHICH. At this point, if the primary cell's uplink escalation timing is
72/82 adopted, the round trip time of the HARQ uphill link is relatively long, because of the uplink scheduling synchronism of the UL-DL TDD 0 configuration adopting the cycling mode. Therefore, the secondary cell can send the corresponding UL_grant and PHICH according to the reference configuration, and the reference configuration can be the UL-DL TDD 1 configuration, that is, the UL_grant and PHICH of the uplink subframes 2 and 7 of the secondary cell can be sent respectively to subframes 6 and 1 of the primary cell to ensure shorter round trip time of the HARQ ascent link.
Optionally, if a primary cell and a secondary cell have different UL-DL TDD configurations and the following conditions: for a first subframe, the primary cell subframe is a rising link subframe whereas that of the secondary cell is a link subframe descent; for a second subframe, the subframe of the primary cell is a subframe of the downlink link whereas that of the secondary cell is a subframe of the uplink link (vice versa), there is the escalation of the uplink of the secondary cell fails to be scaled according to the primary link or secondary cell uplink scheduling synchronism, and the secondary cell can be scaled according to the UL-DL TDD 1 configuration scheduling synchronism. For example, the primary cell is configuration 2 and the secondary cell is configuration 3, or the primary cell is configuration 2 and the secondary cell is configuration 4, or the primary cell is configuration 1 and the secondary cell is configuration 3.
73/82
Optionally, if the primary cell or secondary cell upstream HARQ round-trip latency is greater than 10 subframes, the secondary cell can perform uplink link escalation according to the uplink link escalation timing of the UL-DL TDD 1 configuration. Specifically, the upstream HARQ round-trip latency of UL-DL TDD configurations 1 to 5, that is, the latency of an initial PUSCH transmission packet from a subframe to first send the retransmission packet to which the initial transmission packet corresponds, is 10 subframes. For the UL-DL TDD 0 or 6 configuration, the upward link HARQ round-trip latency is greater than 10 subframes. If setting 0 or 6 is used to be the first reference UL-DL TDD setting in the future, the sending time of some secondary cell PUSCH retransmission packets will not be uplink subframes in a secondary cell, and the cell The secondary link can perform uphill link scheduling according to the UL-DL TDD 1 configuration, ie to consider the UL-DL TDD 1 configuration as the first reference UL-DL TDD configuration.
Optionally, if the sub-link subframe of the secondary cell corresponds to at least two types of the first reference UL-DL TDD configurations, additionally include: determine the first reference UL-DL TDD configuration to which the sub-frame n of the secondary cell corresponds from at least two types of the first reference UL-DL TDD configurations; the j, determined according to the scaling ratio of
74/82 ascent link of the first reference UL-DL TDD configuration to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the PUSCH UL_grant scheduling information of subframe n of the secondary cell.
For example, as shown in figure 25, it is assumed that the primary cell is the UL-DL TDD 2 configuration, the secondary cell is the UL-DL TDD 1 configuration, both cells are aggregated for a UE for data transmission, and it is assumed that the PDSCH to which the PDCCH of the secondary cell corresponds is sent to the primary cell, that is, in a scenario of scaling through carriers, and it is assumed that the PHICH must be sent back to a primary cell. It is assumed that the sublink frame subframes 3 and 8 of the secondary cell form a first group of subframes, and the sublink frame subframes 2 and 7 form a second group of subframes, the sublink frame escalation of the first group. of subframes can be performed according to the secondary cell uplink scheduling synchronism (a second reference UL-DL TDD configuration), that is, send the corresponding UL_grant and PHICH respectively in subframes 9 and 4 of the primary cell; at this time, PHICH may not be sent because the primary cell lacks PHICH capabilities from a backwards compatibility system; the ascent link escalation synchronism of the second group of subframes can be performed according to the primary cell ascent link escalation synchronism (a third reference UL-DL TDD configuration), ie
75/82 is, send the corresponding UL_grant and PHICH respectively in subframes 8 and 3 of the primary cell to ensure lower UL_grant scaling latency, and the corresponding primary cell subframe has PHICH capabilities from a backward compatibility system.
The method provided by the modality for an AC system, in the AC system where each carrier has a distinct ULDL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
One embodiment of the present invention provides a base station for an AC system, to perform the method indicated above, including:
A processing unit, configured to generate UL_grant scheduling information for PUSCH scheduling of a sub link frame n of a secondary cell of a user equipment, and configured to determine, according to the synchronizing relationship of the link scheduling raising a first reference UL-DL TDD configuration, a subframe index j of a subframe that sends the UL_grant PUSCH scheduling information from subframe n of the secondary cell;
A sending unit, configured to send, according to subframe j of the primary cell, the UL_grant generated by the processing unit to a user device.
Optionally, the uphill link scaling sync ratio of the first reference UL-DL TDD configuration includes: the
76/82
PUSCH to which UL_grant corresponds, or the PHICH synchronization relation to which PUSCH corresponds, where PHICH is the downlink link ACK / NACK.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration, or the secondary cell UL-DL TDD configuration, or an UL-DL TDD 0 configuration, or an UL-DL TDD 6 configuration. or a UL-DL TDD 1 configuration.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 6 configuration, the processing unit is specifically configured to determine, according to a part of the uphill link scheduling sync relationships in at least one HARQ process of the UL-DL TDD 6 configuration, a subframe index j of a subframe that sends the UL_grant scheduling information of PUSCH of the sublink frame of the secondary cell n.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 0 configuration, the processing unit is specifically configured to determine, according to part or all of the upstream link scaling sync relationships. at least one uphill link index process of the UL-DL TDD 0 configuration, a subframe index of a subframe that sends the UL_grant scaling information of the secondary cell's uplink subframe n.
Optionally, if the secondary cell uplink subframe matches at least two types of the first reference UL-DL TDD configurations, the unit
77/82 processing is further configured to determine the first reference UL-DL TDD configuration to which subframe n of the secondary cell corresponds from at least two types of the first reference UL-DL TDD configurations, and configured specifically to determine , according to the climb link scaling ratio of the first reference UL-DL TDD configuration to which the subframe n of the secondary cell corresponds, a subframe index j of a subframe that sends the UL_grant scaling information of the subframe PUSCH secondary cell n.
The base station provided by the modality for an AC system, in the AC system where each carrier has a different UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
One embodiment of the present invention provides a communication method for an AC system, based on user equipment. The modality includes the following steps:
receive the UL_grant scheduling information from the PUSCH information of subframe n of the secondary cell, sent by a base station in a subframe j of a primary cell, where the j, determined according to the synchronization ratio of the uplink scheduling of the first configuration Reference UL-DL TDD, is a subframe index of a subframe that sends the UL_grant scaling information of PUSCH of subframe n of the secondary cell; and
78/82 according to the PUSCH UL_grant scheduling information, send the PUSCH in subframe n of the secondary cell.
Optionally, the forward link escalation sync ratio of the first reference UL-DL TDD configuration includes: the PUSCH sync ratio that UL_grant corresponds to, or the PHICH sync relationship that PUSCH corresponds to, where PHICH is the Downlink link ACK / NACK.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration, or the secondary cell UL-DL TDD configuration, or an UL-DL TDD 0 configuration, or an UL-DL TDD 6 configuration. or a UL-DL TDD 1 configuration.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 6 configuration, oj, determined according to a part of the upstream scaling timing relationships of at least one HARQ process of the UL-DL configuration TDD 6, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information from subframe n of the secondary cell.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 0 configuration, oj, determined according to a part or all of the upstream flow scheduling sync ratios of at least one link index of rise of the UL-DL TDD 6 configuration, it is a subframe index of a subframe that sends the UL_grant scaling information of PUSCH of subframe n of the secondary cell.
Optionally, if the upstream link subframe of the
79/82 secondary cell corresponds to at least two types of the first reference UL-DL TDD configurations, additionally include: determine the first reference UL-DL TDD configuration to which the subframe n of the secondary cell corresponds from at least two types the first UL-DL TDD reference configurations; oj, determined according to the climb link scaling ratio of the first reference UL-DL TDD configuration to which the subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the UL_grant scaling information of PUSCH subframe n of the secondary cell.
The method provided by the modality for a CA system, in the CA system where each carrier has a distinct ULDL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
One embodiment of the present invention provides user equipment for an AC system to perform the method indicated above, including:
a receiving unit, configured to receive the UL_grant scheduling information from the PUSCH information of subframe n of the secondary cell, sent by a base station in a subframe j of a primary cell, where the j, determined by the base station according to the relation of synchronization of the uplink scheduling of the first reference UL-DL TDD configuration, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information of subframe n of the secondary cell; and
80/82 a sending unit, configured to send, according to the UL_grant scheduling information of the processing unit PUSCH, the PUSCH in subframe n of the secondary cell.
Optionally, the uphill link escalation sync ratio of the first reference UL-DL TDD configuration includes: the PUSCH sync ratio that UL_grant corresponds to, or the PHICH sync relationship that PUSCH corresponds to, where PHICH is the Downlink link ACK / NACK.
Optionally, the first reference UL-DL TDD configuration is the primary cell UL-DL TDD configuration, or the secondary cell UL-DL TDD configuration, or an UL-DL TDD 0 configuration, or an UL-DL TDD 6 configuration. or a UL-DL TDD 1 configuration.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 6 configuration, oj, determined according to a part of uphill link scheduling sync relationships of at least one HARQ process of the UL-DL configuration TDD 6, is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information from subframe n of the secondary cell.
Optionally, if the first reference UL-DL TDD configuration is the UL-DL TDD 0 configuration, oj, determined according to part or all of the uphill link scheduling sync relationships of at least one link link index. Ascent of the UL-DL TDD 6 configuration, it is a subframe index of a subframe that sends the UL_grant PUSCH scheduling information of subframe n of the secondary cell.
81/82
Optionally, if the subframe of the secondary cell corresponds to at least two types of the first reference UL-DL TDD configuration, oj, determined by the base station according to at least two types of the first reference UL-DL TDD configuration and determined by uphill link escalation sync ratio of the first reference UL-DL TDD configuration to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends the PUSCH UL_grant scaling information of the subframe n of the cell secondary.
user equipment provided by the modality for an AC system, in the AC system where each carrier has a distinct UL-DL configuration, can effectively ensure that SCell's PUSCH is scaled normally, and can effectively ensure normal communication between the base station and the UE.
People of ordinary skill in the art should understand that some or all of the method methods in the modalities can be implemented by a computer program instructing relevant hardware. The program can be stored on a computer-readable storage medium. When the program is executed, the steps of the methods in the modalities are performed. The storage medium can be any medium capable of storing program codes, such as a ROM, RAM, magnetic disk, optical disk and more.
The foregoing descriptions are merely specific embodiments of the present invention, and are not intended to limit the scope of protection of this invention.
82/82 invention. Any variation or substitution readily envisioned by those skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention must be dependent on the scope of protection of the claims.
/ 7

权利要求:
Claims (4)
[1]
1.5.6 7.8 0.9 4, 5.6, 8 0,1,3,9
Configuration 2 (SCC)
FIG 3
1/8
FIG 1
FIG 2 subframe index 01 2 3456 7 8 9
Configuration 3 i c a I i a In o
1. Communication method for a carrier aggregation system, where the system is configured with a primary cell and a secondary cell, and the primary cell and the secondary cell have different UL-DL configurations, the method characterized by the fact that comprises:
receiving PDSCH downlink sharing physical channel information sent by a base station via a subframe n of a secondary cell; and if a subframe n of a primary cell is a downlink subframe, send back an ACK / NACK of the PDSCH information sent in a subframe m of the primary cell, where om, determined according to the ACK / sync ratio NACK to which the subframe n of the primary cell corresponds, is a subframe index of a subframe that sends back the ACS / NACK of the PDSCH of subframe n of the primary cell in the primary cell;
where n and m are indexes of subframes.
[2]
2/8
FIG 4
FIG 5
2/7 uplink link subframe in the primary cell, send back an ACK / NACK of the PDSCH information sent in the subframe p of the primary cell; or, if the subframe p in the primary cell is a downlink subframe, according to a predetermination or notification from the base station, send back an ACK / NACK of the PDSCH information sent in an uplink subframe in the cell primary and specified by the pre-establishment and notification of the base station in which the p, determined according to the ACK / NACK synchronization ratio to which subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back to ACK / NACK of the PDSCH of subframe n of the secondary cell in the secondary cell, and n and p are subframe indices.
2. Communication method for a carrier aggregation system, in which the system is configured with a primary cell and a secondary cell, and the primary cell and the secondary cell have different UL-DL configurations, the method characterized by the fact that comprises:
receiving PDSCH downlink sharing physical channel information sent by a base station via a subframe n of a secondary cell; and when subframe n is a rising link subframe in a primary cell, if subframe p is a
Petition 870180011732, of 02/09/2018, p. 63/87
[3]
3/8
FIG 6
FIG 7
FIG 8
FIG 9
FIG 10
3/7 subframe n of the primary cell in a primary cell; where n and m are indexes of subframes.
4. Communication method, according to claim 3, characterized by the fact that, before the PDSCH information is sent to a user device via a subframe n of a secondary cell, it additionally comprises: sending physical channel information downlink control control PDCCH in subframe n of the primary cell, where the PDCCH information is used to stagger the sent PDSCH information.
5. Communication method according to claim 3, characterized by the fact that if the subframe n of the primary cell is a subframe of the rising link, it does not scale PDSCH of the subframe n of the secondary cell.
6. Communication method for a carrier aggregation system, where the system is configured with a primary cell and a secondary cell, and the primary cell and the secondary cell have different UL-DL configurations, the method characterized by the fact that comprises:
sending PDSCH downlink sharing physical channel information to user equipment via a subframe n of a secondary cell; and when subframe n is a rising link subframe in a primary cell, if a subframe p is a rising link subframe in the primary cell, receiving an ACK / NACK of the PDSCH information sent by the user equipment in subframe p in the cell primary; or, if the subframe p in the primary cell is a link subframe
Petition 870180011732, of 02/09/2018, p. 65/87
4/7 descent, receive an ACK / NACK of the sent PDSCH information which, according to a pre-established or a notification from the base station, is sent by a user equipment in an uplink subframe in the primary cell and specified by the pre-establishment and notification of the base station, where op, determined according to the ACK / NACK synchronism ratio to which the subframe n of the secondary cell corresponds, is a subframe index of a subframe that sends back the ACK / NACK of the PDSCH of subframe n of the secondary cell in the secondary cell, enep are indexes of subframe.
7. User equipment for a carrier aggregation system, in which the system is configured with a primary cell and a secondary cell, and the user equipment is characterized by the fact that it comprises:
a receiving unit, configured to receive PDSCH information sent by a base station via a subframe n of a secondary cell; and a feedback unit, configured to:
if a subframe n of a primary cell is a downlink subframe:
sending back an ACK / NACK of the PDSCH information sent in a subframe m of the primary cell, where the m, determined according to the ACK / NACK synchronism relationship to which the subframe n of the primary cell corresponds, is a subframe index of a subframe that sends back the PDSCH ACK / NACK of subframe n of the primary cell in the primary cell;
or if subframe n of the primary cell is a subframe
Petition 870180011732, of 02/09/2018, p. 66/87
5/7 uphill link:
if a subframe p is an uplink subframe in the primary cell, send back an ACK / NACK of the PDSCH information sent in the subframe p of the primary cell; or, if the subframe p in the primary cell is a downlink subframe, according to a predetermination or notification from the base station, send back an ACK / NACK of the PDSCH information sent in an uplink subframe in the cell primary and specified by the pre-establishment and notification of the base station;
where n, m and p are indexes of subframes.
8. User equipment according to claim 7, characterized by the fact that the receiving unit is additionally configured to receive PDCCH downlink control physical channel information sent by the base station via subframe n of the primary cell , where the PDCCH information is used to schedule the PDSCH information sent.
9. Base station for a carrier aggregation system, in which the system is configured with a primary cell and a secondary cell, and the base station is characterized by the fact that it comprises:
a sending unit, configured to send PDSCH downlink sharing physical channel information to user equipment via a subframe n of a secondary cell; and a receiving unit, configured to:
if subframe n of a primary cell is a downlink subframe:
receive an ACK / NACK of the PDSCH information sent by the
Petition 870180011732, of 02/09/2018, p. 67/87
6/7 user equipment in a subframe m of the primary cell, where the m, determined according to the ACK / NACK synchronism ratio to which the subframe n of the primary cell corresponds, is a subframe index of a subframe that sends from returns to ACS / NACK of PDSCH of subframe n of the primary cell in the primary cell;
or if subframe n of the primary cell is a rising link subframe:
if a subframe p is an uplink subframe in the primary cell, receiving an ACK / NACK of the PDSCH information sent by the user equipment in subframe p in the primary cell; or, if the subframe p in the primary cell is a downlink subframe, receive the ACK / NACK of the sent PDSCH information which, according to a predetermination or notification from the base station, is sent by the user equipment in a subframe ascent link in the primary cell and specified by the pre-establishment and notification of the base station;
where n, m and p are indexes of subframes.
10. Base station according to claim 9, characterized by the fact that the receiving unit is additionally configured to send PDCCH downlink control physical channel information in subframe n of the primary cell, where the PDCCH information is used to schedule the PDSCH information sent.
11. Base station according to claim 9, characterized by the fact that the sending unit, if the subframe n of the primary cell is a sublink frame of the rising link, does not scale PDSCH of the subframe n of the cell
Petition 870180011732, of 02/09/2018, p. 68/87
7/7 secondary.
Petition 870180011732, of 02/09/2018, p. 69/87
3. Communication method for a carrier aggregation system, in which the system is configured with a primary cell and a secondary cell, and the primary cell and the secondary cell have different UL-DL configurations, the method characterized by the fact that comprises:
sending PDSCH downlink sharing physical channel information to user equipment via a subframe n of a secondary cell; and if the subframe n of the primary cell is a downlink subframe: receiving an ACK / NACK of the PDSCH information sent by the user equipment in a subframe m of the primary cell, where the m, determined according to the ACK synchronization ratio / NACK to which the subframe n of the primary cell corresponds, is a subframe index of a subframe that sends back the ACK / NACK of the PDSCH of the
Petition 870180011732, of 02/09/2018, p. 64/87
[4]
4/8
FIG 11
FIG 12

类似技术:

---

公开号 | 公开日 | 专利标题

---

BR112013021789B1|2018-09-18|communication method and apparatus for carrier aggregation system

---

JP6208806B2|2017-10-04|Method for transmitting control information and apparatus therefor

---

KR101712895B1|2017-03-07|Downlink control signalling transmission method and device

---

US9461780B2|2016-10-04|Method and apparatus for transmitting hybrid automatic repeat request acknowledgement information

---

ES2568281T3|2016-04-28|Procedure and data transmission device in a carrier aggregation system

---

RU2625319C1|2017-07-13|Method of sending uplink control information, user equipment and base station

---

WO2017124863A1|2017-07-27|Method and apparatus for reporting uplink control information |

---

US10244513B2|2019-03-26|Method and device for configuring and sending uplink control channel, base station and user equipment

---

BR112020014440A2|2020-12-01|communication method and device

---

CN105052068A|2015-11-11|Method for enabling terminal to transmit and receive signal in wireless communications system and apparatus therefor

---

WO2013189252A1|2013-12-27|Ack/nack feedback bit number determination method and device

---

WO2013143378A1|2013-10-03|Method for implementing harq feedback, and method and device for allocating uplink subframe

---

RU2016113687A|2017-10-30|Method and device for data transmission during spectrum aggregation

---

WO2017076113A1|2017-05-11|Data transmission method and apparatus in half-duplex fdd

同族专利:

---

公开号 | 公开日

---

EP3104651A1|2016-12-14|

---

JP6105784B2|2017-03-29|

---

JP2015188245A|2015-10-29|

---

US20160365961A1|2016-12-15|

---

CN106452691A|2017-02-22|

---

US20130336267A1|2013-12-19|

---

CN106375071B|2020-07-14|

---

JP2016174372A|2016-09-29|

---

US20160081068A1|2016-03-17|

---

JP5793810B2|2015-10-14|

---

EP3060021B1|2018-03-28|

---

CN102651680A|2012-08-29|

---

CN105634693B|2019-04-19|

---

CN106452691B|2020-08-07|

---

PT3407521T|2020-07-07|

---

CN106571897A|2017-04-19|

---

JP2017139773A|2017-08-10|

---

CN103392369A|2013-11-13|

---

US9232506B2|2016-01-05|

---

CN106533637B|2020-11-17|

---

EP2672775B1|2015-12-09|

---

EP3407521A1|2018-11-28|

---

US9456443B2|2016-09-27|

---

CN106533638B|2020-04-03|

---

CN103392369B|2016-11-02|

---

PL2672775T3|2016-05-31|

---

CN106375071A|2017-02-01|

---

EP2672775A4|2014-02-26|

---

US20160374061A1|2016-12-22|

---

CN104883243B|2018-06-05|

---

US9451633B2|2016-09-20|

---

CN102651680B|2015-02-25|

---

EP3060021A1|2016-08-24|

---

EP2672775A1|2013-12-11|

---

BR112013021789A2|2016-10-18|

---

ES2562474T3|2016-03-04|

---

JP2014509500A|2014-04-17|

---

CN106533638A|2017-03-22|

---

PL3407521T3|2020-11-16|

---

CN106571897B|2020-11-17|

---

CN105634693A|2016-06-01|

---

CN104883243A|2015-09-02|

---

CN106533637A|2017-03-22|

---

EP3407521B1|2020-06-03|

---

US20160081113A1|2016-03-17|

---

EP3104651B1|2018-03-28|

---

JP5922828B2|2016-05-24|

---

WO2012113345A1|2012-08-30|

---

JP6522676B2|2019-05-29|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

CN100393174C|2005-10-21|2008-06-04|中兴通讯股份有限公司|Method for realizing multi-carrier high-speed down group access of time-division synchronus CDMAS system|

---

KR20090115219A|2007-03-01|2009-11-04|가부시키가이샤 엔티티 도코모|Base station device and communication control method|

---

KR101482262B1|2007-10-18|2015-01-13|엘지전자 주식회사|Method of transmitting feedback message in wireless communication system|

---

US8942080B2|2008-04-17|2015-01-27|Texas Instruments Incorporated|Transmission of bundled ACK/NAK bits|

---

CN101651895B|2008-08-15|2012-06-27|华为技术有限公司|Method, equipment, system and wireless frame structure for time divide duplex communication of long term evolution|

---

EP2352324B1|2008-11-28|2017-09-27|NEC Corporation|Base station device, method for controlling base station device, communication system, and storage medium having program stored therein|

---

EP2200208A1|2008-12-19|2010-06-23|Panasonic Corporation|HARQACK/NACK for dynamic PDSCH|

---

CN101442818B|2008-12-31|2012-07-18|中兴通讯股份有限公司|Indication method for large bandwidth system physical ascending control channel|

---

US9673952B2|2009-04-10|2017-06-06|Qualcomm Inc.|Method and apparatus for supporting user equipments on different system bandwidths|

---

CN101588224B|2009-05-19|2014-07-02|中兴通讯股份有限公司|Method and system for transmitting correct/wrong reply message|

---

ES2657223T3|2009-06-15|2018-03-02|Guangdong Oppo Mobile Telecommunications Corp., Ltd.|Procedure and system for sharing a control channel for bearer aggregation|

---

CN101959319B|2009-07-17|2013-02-13|鼎桥通信技术有限公司|Information transmission method in subcarrier time slot 0|

---

KR101644882B1|2009-07-28|2016-08-02|엘지전자 주식회사|Method for performing carrier management procedure in a multi-carrier supported wideband wireless communication system and appartus for the same|

---

ES2755936T3|2009-08-07|2020-04-24|Sun Patent Trust|Communication apparatus and retransmission control procedure|

---

CN102577209B|2009-10-01|2017-04-05|交互数字专利控股公司|Uplink control data transmission|

---

KR101750371B1|2009-12-24|2017-07-03|삼성전자 주식회사|Method and apparatus defining transmission and reception time of physical channels supporting cross carrier scheduling in TDD cellular communication systems|

---

KR101753586B1|2010-02-03|2017-07-04|엘지전자 주식회사|Apparatus and method of transmitting control information in wireless communication system|

---

CN101958772B|2010-09-29|2016-03-02|中兴通讯股份有限公司|For across the Physical Downlink Control Channel sending method of carrier dispatching and base station|

---

CN101964698A|2010-09-30|2011-02-02|中兴通讯股份有限公司|Method for transmitting response messages under multi-antenna system and user equipment|

---

CN101958775B|2010-09-30|2015-05-20|中兴通讯股份有限公司|Sending method of acknowledgment information and user equipment|

---

CA2813242C|2010-10-01|2016-06-07|Research In Motion Limited|Orthogonal resource selection transmit diversity|

---

US9277447B2|2010-10-20|2016-03-01|Nokia Technologies Oy|Shortened subframe format for FDD|

---

CN103283170B|2010-11-02|2016-05-04|Lg电子株式会社|The method and apparatus of transmitting/receiving uplink control information in wireless communication system|

---

US20120113827A1|2010-11-08|2012-05-10|Sharp Laboratories Of America, Inc.|Dynamic simultaneous pucch and pusch switching for lte-a|

---

US8891416B2|2011-01-02|2014-11-18|Lg Electronics Inc.|Method and device for ACK/NACK transmission in TDD-based wireless communication system|

---

CN102651680B|2011-02-24|2015-02-25|华为技术有限公司|Communication method and device for carrier aggregation system|

---

CN102255718B|2011-07-11|2013-09-11|电信科学技术研究院|Data transmission method and device for carrier aggregation system|US9219591B2|2008-06-23|2015-12-22|Nokia Solutions And Networks Oy|Method and apparatus for providing acknowledgement bundling|

---

CN102651680B|2011-02-24|2015-02-25|华为技术有限公司|Communication method and device for carrier aggregation system|

---

CN106209327B|2011-03-13|2019-09-10|Lg电子株式会社|For sending/receiving the method and device thereof of signal|

---

US9191180B2|2011-03-21|2015-11-17|Lg Electronics Inc.|Method and device for executing HARQ in TDD-based wireless communication system|

---

CN102752090B|2011-04-22|2017-06-16|北京三星通信技术研究有限公司|A kind of method that synchronous HARQ for supporting PUSCH is transmitted|

---

CN102843771B|2011-06-20|2015-04-22|华为技术有限公司|Method for information transmission in TDD system, user equipment and base station|

---

CN102938691B|2011-08-15|2018-05-01|北京三星通信技术研究有限公司|A kind of method of feeding back ACK/NACK in wireless communication system|

---

JP5979968B2|2012-05-11|2016-08-31|株式会社Ｎｔｔドコモ|User terminal, wireless communication method, and wireless communication system|

---

US10349385B2|2012-05-16|2019-07-09|Qualcomm Incorporated|Methods and apparatus for subframe configuration for wireless networks|

---

KR102217646B1|2012-05-24|2021-02-19|삼성전자 주식회사|Mobile communication system and method for receiving/transmitting channel thereof|

---

CN103687038A|2012-09-25|2014-03-26|索尼公司|Cross-carrier scheduling method, communication method, communication system, base station and communication terminal|

---

US8923880B2|2012-09-28|2014-12-30|Intel Corporation|Selective joinder of user equipment with wireless cell|

---

CN103780361B|2012-10-17|2018-08-17|中兴通讯股份有限公司|A kind of sending method and device of response message|

---

CN108337073B|2012-12-18|2021-03-05|Lg电子株式会社|Method and base station for receiving ACK/NACK in wireless communication system|

---

CN103905997A|2012-12-26|2014-07-02|夏普株式会社|Method for sending uplink scheduling information and base station|

---

US9712308B2|2013-01-10|2017-07-18|Electronics And Telecommunications Research Institute|Method for enhancing small cell|

---

KR102024132B1|2013-01-25|2019-09-24|삼성전자주식회사|Method and apparatus for transmitting control channel in intra-cell carrier aggregation system|

---

EP3537643A1|2013-01-25|2019-09-11|Telefonaktiebolaget LM Ericsson |Method, wireless communication device and computerreadable product for reporting ack/nack in dynamic tdd configurations|

---

US9839023B2|2013-02-06|2017-12-05|Lg Electronics Inc.|Method for setting search area for detecting downlink control information in wireless communication system and apparatus for same|

---

EP3624379B1|2013-03-28|2021-04-21|NEC Corporation|Method and apparatus for determining harq timing in communication systems|

---

WO2014166058A1|2013-04-09|2014-10-16|Broadcom Corporation|Adapting inter-band harq to support flexible tdd subframe configuration|

---

WO2014179980A1|2013-05-10|2014-11-13|华为技术有限公司|Method for feeding hybrid automatic repeat requestback, user equipment, and base station|

---

WO2014180001A1|2013-05-10|2014-11-13|Telefonaktiebolaget L M Ericsson |Methods, user equipment and radio network node for harq ack/nack bundling on pusch in a dynamic tdd system|

---

US9706568B2|2013-06-28|2017-07-11|Texas Instruments Incorporated|Uplink control signaling for joint FDD and TDD carrier aggregation|

---

CN104348591B|2013-08-01|2019-03-12|中兴通讯股份有限公司|A kind of sending method and user equipment, base station of ascending control information|

---

EP3036856B1|2013-08-23|2019-08-14|Telefonaktiebolaget LM Ericsson |A node and method for uplink scheduling and hybrid automatic repeat request timing|

---

DK3300282T3|2013-08-23|2020-06-02|Ericsson Telefon Ab L M|Nodes and user device for downlink scheduling and hybrid automatic repeat request timing|

---

JP2015065621A|2013-09-26|2015-04-09|株式会社Ｎｔｔドコモ|User terminal, base station and radio communication method|

---

CN110176979B|2013-09-27|2020-10-27|中兴通讯股份有限公司|Data sending method and device for frequency spectrum aggregation|

---

ES2711211T3|2013-09-27|2019-04-30|Huawei Tech Co Ltd|HARQ feedback through carrier aggregation|

---

CN105594149B|2013-10-04|2019-04-09|Lg 电子株式会社|Terminal sends the method and its equipment of ACK/NACK in a wireless communication system|

---

CN105612708B|2013-10-07|2020-03-10|Lg 电子株式会社|Method and apparatus for transmitting ACK/NACK by terminal in wireless communication system|

---

CN104579596B|2013-10-28|2018-02-16|中国电信股份有限公司|FDD LTE and the HARQ sequential implementation method and equipment of TDD LTE carrier aggregations|

---

CN104170303B|2014-01-29|2017-06-06|华为技术有限公司|A kind of data transmission method, equipment and system|

---

EP3114789A1|2014-03-06|2017-01-11|Interdigital Patent Holdings, Inc.|Full duplex operation in wireless systems|

---

EP3185457A4|2014-09-18|2017-08-30|Huawei Technologies Co., Ltd.|Response information transmission method, apparatus and device|

---

US11140713B2|2014-12-10|2021-10-05|Telefonaktiebolaget Lm Ericsson |Preemptive retransmissions on Listen-Before-Talk cells|

---

CN107809770B|2016-09-09|2021-06-15|华为技术有限公司|Data transmission method, base station and user equipment|

---

WO2018064173A1|2016-09-29|2018-04-05|Sharp Laboratories Of America, Inc.|Systems and methods for determining frame structure and association timing|

---

JP6337941B2|2016-10-06|2018-06-06|日本電気株式会社|Method and apparatus for determining HARQ timing in communication system|

---

CN109804585A|2016-10-28|2019-05-24|华为技术有限公司|Message feedback method and device based on HARQ|

---

EP3531762B1|2016-10-28|2022-02-23|Huawei Technologies Co., Ltd.|Message feedback method and device for carrier aggregation|

---

WO2019100264A1|2017-11-22|2019-05-31|Qualcomm Incorporated|Enhancements of nb-iot for tdd operation|

---

WO2019127183A1|2017-12-28|2019-07-04|北京小米移动软件有限公司|Method and device for transmitting hybrid automatic repeat request information|

---

JP6493597B2|2018-05-09|2019-04-03|日本電気株式会社|Method by base station, base station and UE|

法律状态:
2018-06-26| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

---

2018-09-18| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/02/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

---

申请号 | 申请日 | 专利标题

---

CN201110045513|2011-02-24|

---

CN201210019206.XA|CN102651680B|2011-02-24|2012-01-21|Communication method and device for carrier aggregation system|

---

PCT/CN2012/071592|WO2012113345A1|2011-02-24|2012-02-24|Communication method and device for carrier aggregation system|

---