measurement and dispatch method, interference coordination apparatus and system

专利摘要:
measuring and transmission method and device, and interference coordination system. Embodiments of the present invention provide a measurement and transmission method, device and system for interference coordination. The measurement method includes obtaining measurement information and measurement resource configuration information for the limited measurement, performing the measurement and then obtaining the measurement result according to the measurement configuration information and the measurement information. measurement feature for limited measurement to display the measurement result. The transmission method includes: When a BS1 base station covering the cellular invasion interferes with a BS2 base station covering the victim cell, BS2 sends an inter-cellular enhancement request for interference coordination to BS1 through BS1 determines the transmission information. Substructure configuration improved coordination inter-cellular interference applied between bs1 and bs2 o, and sends configuration information bs2 to substructure as measurement resource information for limited measurement. According to the invention, the disturbed user equipment can perform an accurate measurement and report the measurement result as a base switch.
公开号:BR112013007544B1
申请号:R112013007544
申请日:2011-05-31
公开日:2018-07-17
发明作者:Lin Bo；Shi Jie；Chai Li
申请人:Huawei Tech Co Ltd；
IPC主号:

专利说明:

(54) Title: MEASUREMENT AND SHIPPING METHOD, APPLIANCE AND SYSTEM FOR INTERFERENCE COORDINATION (51) Int.CI .: H04W24 / 10 (30) Unionist Priority: 30/09/2010 CN 201010298597.4 (73) Holder (s) : HUAWEI TECHNOLOGIES CO., LTD.
(72) Inventor (s): BO LIN; LI CHAI; JIE SHI
1/48
MEASUREMENT AND SHIPPING METHOD, APPLIANCE AND SYSTEM FOR INTERFERENCE COORDINATION
FIELD OF THE INVENTION
Ά present invention refers to technologies in communication without wire and in particular to a method in measurement and shipping, an appliance and a system for coordination interference. BACKGROUND THE INVENTION To improve the performance of an network in communication without wire (including cover, rhythm in
average cell transfer, cell edge transfer rate, and uplink / downlink spectrum utilization ratio), base stations of different transmit power or different access types can be employed in the same coverage area for the formation of a heterogeneous and multiple layer covering. For example, in an LTE system (long-term evolution, long-term evolution), a heterogeneous network consisting of a base macrostation (such as a macroeNode B) and a low power base station (an access point, such as a domestic eNode B, a microNode B, a picoENode B, a retransmission eNode B and RRH) is designed for improving hotspot coverage, indoor dead zone (or weak zone) coverage, and cell edge coverage of a base macrostation in the area covered by the base macrostation and to improve the average cell transfer rate, cell edge transfer rate, reason for using uplink / downlink spectrum, and for reducing the network and network cost. capital expenditure (CAPEX, generally referring to
2/48 to an investment in the form of funds and fixed assets) from the operator.
With the increasing complexity of network use, interference is more severe, and existing interference management technologies are challenged. Some low power base stations do not establish a signaling interface for the macro network, and are unable to perform interference coordination by using ICIC technology (inter-cell interference coordination, inter-cell interference coordination) between base stations. In addition, the signaling involved in the ICIC brings a signal load to the interfaces between base stations. In the prior art, no technology was available for measuring restricted resources. When an eNB (evolved Node B, evolved Node B) sends a RRC reconfiguration message (radio resource control, radio resource control) that carries a CRS measurement configuration (cell specific reference signal, cell-specific reference) calculated by the UE in the evaluation period. After receiving the message that carries the measurement configuration, the UE measures the CRS based on a subframe at intervals during the evaluation period, and reports the measurement result performed by using a non-restrictive resource according to the rules in the measurement message. configuration.
At least the following problems are encountered in the prior art: when the UE is interfered with, the UE performs only an unrestricted measurement (that is, the quality of the measured cell is assumed to be low, and no cell better than the cell victim is available or the
3/48 operator expects the UE to prefer the victim cell), obtain an unrestricted measurement result, and report the result. In this case, if the UE is located in the victim cell, the UE will make a point-to-point transfer futilely, or, if the UE in the victim cell measures only a specific resource, the network will be unable to perform interference coordination; if the UE is located in the aggressor cell, the UE in the aggressor cell will not have the opportunity to make a point-to-point transfer to the victim cell, or, if the UE measures only a specific resource, too many UEs will make a point-to-point transfer to the victim cell, which leads to congestion in the victim cell.
SUMMARY OF THE INVENTION
One embodiment of the present invention provides a measurement and shipping method, an apparatus and a system for interference coordination, so that an interfering UE can accurately perform a measurement and report the measurement result as a point transfer basis to the point.
In accordance with the first aspect of the present invention, a measurement method for interference coordination includes: obtaining measurement configuration information, and obtaining measurement resource information for restrictive measurement; performing measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and obtaining a measurement result; and the measurement result report.
According to the second aspect of the present invention,
4/4 8 a sending method for interference coordination includes: sending, through a base station of a victim cell, an enhanced ICIC request (elCIC) to a base station of an offending cell, when the base station of the cell victim suffers interference from the base station of the attacking cell; and the decision, by the offending cell base station, of a subframe configuration information for elCIC applied between the victim cell's base station and the offending cell base station, and the sending of the decided subframe configuration information as an information of measurement feature for restrictive measurement to the base station of the victim cell.
According to the third aspect of the present invention, a measuring device for interference coordination includes: a obtaining unit, configured to obtain measurement configuration information, and to obtain measurement resource information for restrictive measurement. ; a measurement unit, configured to perform measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and to obtain a measurement result; and a reporting unit configured to report the measurement result.
In accordance with the fourth aspect of the present invention, a sending system for interference coordination includes a base station for a victim cell, a base station for an offending cell. The base station of a victim cell is configured to send an elCIC request to the base station of an attacking cell, when the base station of the victim cell is interfered with by
5/48 base station of the aggressor cell; and the base station of the attacking cell is configured to decide a subframe configuration information for elCIC applied between the base station of the victim cell and the base station of the attacking cell, according to the request of elCIC, and send the configuration information of subframe decided as a measurement resource information for restrictive measurement for the victim cell base station.
The preceding technical solution has the following benefits: the measurement configuration information and the measurement resource information for restrictive measurement are obtained, the measurement is performed according to the measurement configuration information and the measurement resource information for restrictive measurement, and a measurement result is obtained and reported. Therefore, the interfering UE can perform a measurement accurately, and report the measurement result as a point-to-point base transfer.
BRIEF DESCRIPTION OF THE DRAWINGS
In order to clarify the technical solution of the present invention or the prior art, the following outlines the associated drawings involved in describing the modalities of the present invention or the prior art. Of course, the associated drawings outlined below are illustrative, rather than exhaustive, and people of ordinary skill in the art can derive other drawings from them without any creative effort.
Figure 1 is a flow chart of a measurement method for coordinating interference as an embodiment of the present invention;
with one according
6/48 figure 2 is a flow chart of a shipping method for interference coordination according to an embodiment of the present invention;
figure 3 is a signaling table of how a victim cell UE reports a measurement result according to a first embodiment of the present invention;
Figure 4 is a resource interaction synchronization table between an offending cell and a victim cell according to an embodiment of the present invention;
figure 5 is a signaling table of how a UE in a victim cell reports a measurement result according to a second embodiment of the present invention;
figure 6 is a signaling table of how a UE in a victim cell reports a measurement result according to a third embodiment of the present invention;
figure 7 is a signaling table of how a UE in a victim cell reports a measurement result according to a fourth embodiment of the present invention;
figure 8 is a signaling table of how a UE in an attacking cell reports a measurement result according to a first embodiment of the present invention;
Figure 9 is a signaling table of how a UE in an offending cell reports a measurement result in accordance with a second embodiment of the present invention;
Figure 10 is a signaling table of how a UE in an offending cell reports a measurement result in accordance with a third embodiment of the present invention;
Figure 11 is a signaling table of how a UE in an offending cell reports a measurement result in accordance with a fourth embodiment of the present invention;
7/48 figure 12 is a schematic diagram of the structure of a measuring device for interference coordination in accordance with an embodiment of the present invention; and figure 13 is a schematic diagram of the composition of a sending system for interference coordination according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE MODALITIES
The following detailed description is given in conjunction with the associated drawings to provide a complete understanding of the present invention. Of course, the drawings and the detailed description are merely representative of the particular modalities of the present invention, rather than all of the modalities. All other modalities, which can be derived by those skilled in the art from the modalities given here, without any creative effort, must fall within the scope of the present invention.
Figure 1 is a flow chart of a measurement method for coordinating interference in accordance with an embodiment of the present invention. The method includes the following steps:
101. Obtain measurement configuration information and obtain measurement resource information for restrictive measurement.
102. Perform a measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and obtain a measurement result.
103. Report the measurement result.
The measurement result report for the service cell base station (ie the cell base station
8/48 service in the description) includes: the measurement result report for the offending cell base station (ie, a base station whose coverage covers the offending cell), and the measurement result report for the offending cell base station victim cell (that is, a base station whose coverage covers the victim cell in the description).
Optionally, obtaining measurement resource information for restrictive measurement can include: measurement resource information for restrictive measurement restricts the measured resource with respect to the time domain, frequency domain, space domain, code domain ; and the measurement resource information for restrictive measurement indicates a resource used for ICIC or a subset of the resource used for ICIC, and is obtained through a broadcast message or a signal. Optionally, obtaining the measurement configuration information includes: obtaining the configuration information for non-restrictive measurement, and the measurement indication of use of a specific resource corresponding to the measurement resource information for restrictive measurement and a measurement indication for non-restrictive measurement to indicate that a corresponding measurement type is to be applied; the configuration information for non-restrictive measurement and the measurement indication of use of a specific resource corresponding to the measurement resource information for restrictive measurement or the measurement indication for non-restrictive measurement to indicate that it is to apply a corresponding measurement type; the use of a broadcast message or signaling to obtain it; where the measurement indication is a start, stop indication. Optionally, the
9/48 obtaining measurement configuration information includes: obtaining configuration information for non-restrictive measurement, and a restrictive measurement indication and a non-restrictive measurement indication to deal with a corresponding measurement type; configuration information for non-restrictive measurement, and a restrictive measurement indication or a non-restrictive measurement indication for dealing with a corresponding measurement type; the use of a broadcast message or signaling; where the measurement indication is a start indication, measurement stop. Optionally, a measurement type or an event type is used to identify the measurement result.
Optionally, an interference limit can be obtained, additionally, when obtaining the measurement resource information for restrictive measurement through a broadcast or synchronization message. Optionally, executing the measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, obtaining a measurement result and measuring result report include: performing a corresponding non-restrictive measurement according to the measurement configuration information, and obtaining an interference value representative of an interference level; comparing the interference value with the interference limit; the execution, by the UE, of a corresponding non-restrictive measurement according to the measurement configuration information, obtaining a non-restrictive measurement measurement result, and the measurement result report of the
10/48 non-restrictive measurement for the base station of the service cell, if the interference value is greater than or equal to the interference limit; the initiation by the UE of the measurement of a specific resource corresponding to the measurement resource information for restrictive measurement, and the obtaining and reporting of a measurement result of the specific resource according to the measurement resource information for restrictive measurement, if the interference value is less than the interference limit; or performing a corresponding non-restrictive measurement, and in the meantime, measuring the specific resource corresponding to the measurement resource information for restrictive measurement and obtaining the measurement result for the specific resource, and reporting the result of the non-restrictive measurement and the measurement result of the specific resource for the base station of the service cell; or performing a corresponding non-restrictive measurement and obtaining the non-restrictive measurement result, and in the meantime, measuring the specific resource corresponding to the measurement resource information for restrictive measurement and obtaining the measurement result for the specific resource, but reporting only the measurement result of the specific feature to the base cell of the service cell, until the interference value is greater than or equal to the interference limit; and the initiation of restrictive measurement as soon as the UE receives the measurement resource information for restrictive measurement, and in the meantime, the continuation of non-restrictive measurement.
Optionally, obtaining measurement configuration information and obtaining measurement information
11/48 measurement capabilities for restrictive measurement include: obtaining, by the UE located in the victim cell, the measurement configuration information from the victim cell base station, and obtaining the measurement feature information for restrictive measurement from the base station of the victim cell; or obtaining, by the UE in the offending cell, the measurement configuration information from the offending cell's base station, obtaining the measurement resource information for restrictive measurement from the offending cell's base station, and applying the information measurement configuration and measurement resource information for measuring a neighboring victim cell.
Optionally, after receiving the reported measurement result, the offending cell's base station decides to make a point-to-point transfer to the victim cell's base station according to the measurement result, and indicates a programming mode from the UE to the base station of the victim cell. The programming mode indication process is initiated by the base cell of the offending cell, and the programming mode recommended by the UE is reported to the target base station of the victim cell. The base station of the victim cell that receives the indication takes this indication into account when forming a programming policy for the UE with the transfer from point to point. For example, if the offending cell's base station indicates a restrictive resource schedule, the victim cell's base station can program the UE for the restrictive resource used for ICIC. The programming mode indication is decided by the cell's base station
12/48 aggressor according to the type of the measurement result, where the type of the measurement result is used to decide a transfer from point to point to the base station of the victim cell, and is reported by the user. The programming mode indication can be a separate signal, or it can be carried on a signal transmitted in the point-to-point transfer process.
In the measurement method for interference coordination above, the interference UE can perform a measurement accurately and report the measurement result as a point-to-point transfer basis.
Correspondingly to the preceding measurement method, a sending method for interference coordination is provided in an embodiment of the present invention. As shown in figure 2, the shipping method includes the following steps:
201. A victim cell base station sends an elCIC request to an offending cell base station when the victim cell's base station interference from the attacking cell's base station.
202. The base cell of the offending cell determines a subframe configuration information for elCIC applied between the base station of the victim cell and the base station of the offending cell according to the elCIC request, and sends the subframe configuration information determined as a specific resource configuration information allocated to the base cell of the victim cell, and the base station of the victim cell configures the measurement resource information for restrictive measurement.
Optionally, before the cell base station
13/48 victim sends the request for elCIC to the base station of the attacking cell, the method also includes: the sending, by the base station of the attacking cell, of a subframe configuration information available for elCIC to the base station of the victim cell. Determination by the aggressor cell's base station of the subframe configuration information for elCIC applied between the victim cell's base station and the aggressor cell's base station according to the elCIC request may include: the aggressor cell's base station determines the information of subframe configuration for elCIC applied between the base station of the victim cell and the base station of the attacking cell, according to the subframe configuration information available for the base station of the aggressor cell for elCIC, and according to the configuration information elCIC subframe in the elCIC request. The determined subframe configuration information applied to the elCIC includes completely silent subframe configuration information and partially silent subframe configuration information; or UEs after RIO are programmed in these subframes selectively.
Optionally, before the base station of the victim cell sends the elCIC request to the base station of the attacking cell, the method can also include: sending a message between the base station of the victim cell and the base station of the attacking cell, in that the message includes a local ability to support elCIC for the opposite party. If the base station of the offending cell supports ICIC, the base station of the victim cell will send a request for
14/48 elCIC by detecting interference.
Optionally, after the victim cell base station receives the determined subframe configuration information applied to the elCIC sent by the offending cell base station, the victim cell base station can send a confirmed usable subframe configuration information to elCIC to the base station of the offending cell. The confirmation process aims to maintain a synchronization of radio resource usage. In some specific scenarios, if the base cell of the victim cell fails to receive the configuration information sent by the base station of the attacking cell, the base station of the attacking cell will not be aware of the configuration information due to lack of the confirmation process, the base station of the victim cell will not use the base station configuration of the attacking cell due to failure to receive the configuration, and the base station of the attacking cell will not use the configuration to which it was sent. The confirmation process improves the radio resource usage ratio.
Optionally, if the detection of a measured value in the measurement report submitted by the UE with respect to the base station of the offending cell exceeds a preset limit, the base station of the victim cell will confirm that the base station of the victim cell is interfered by the base station of the offending cell. Optionally, subframe configuration information, which is sent by the offending cell's base station to the victim cell's base station and is decided to be applied to elCIC, can include start time for using the
15/48 subframe. The start time for using the subframe configuration is assigned to coordinate the time of use of the subframe between the base station of the attacking cell and the base station of the victim cell, for example, the base station of the victim cell programs the UE for the subframe in which the base station of the offending cell is in a silent mode. Optionally, the elCIC request sent by the base cell of the victim cell to the base station of the attacking cell carries an indication of the level of interference. The level of interference can be high, medium or low. Depending on the level of interference, the transmission power or the number of silent subframes of the offending cell can be adjusted. For example, when the level of interference is high, the transmission power can be reduced, the subframes can be made completely silent, or more subframes can be made silent to reduce interference.
In the sending method for interference coordination in the preceding modality, the interference UE can perform an accurate measurement, and report the measurement result as a point-to-point transfer basis. After receiving the measurement result, the base station of the attacking cell decides to make a point-to-point transfer to the base station of the victim cell. The point-to-point transfer command can optionally carry a notification to the base station of the victim cell. The notification indicates that the UE programming mode is an enhanced elCIC programming mode (specifically, programming is performed only on the
16/48 resource designated for interference coordination at the base station of the offending cell), or indicates that the measurement result serving as a basis for the decision derives from the measurement of the restrictive resource.
The following provides more details through examples:
Figure 3 is a signaling table of how a UE in a victim cell reports a measurement result according to a first embodiment of the present invention. The signal flow includes:
301. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
302. The attacking cell's eNB exchanges the configuration information of the specific resource allocated with the victim cell's eNB.
Figure 4 is a feature interaction signaling table between an offending cell's eNB and a victim cell's eNB, according to an embodiment of the present invention. The signal flow includes:
Configuration stage:
1: the offending cell's eNB sends a subframe configuration information (called an available subframe configuration) to elCIC (improved inter-cell interference coordination) available for TDM (time division multiplexing, time division multiplexing) to the eNB of the victim cell in X2 interface base station process or eNB configuration update. The subframe configuration information indicates that the cell's eNB
17/48 aggressor can make these frames silent for interference coordination for the victim cell's eNB, in this modality, this configuration is not applied immediately, but is applied in step 2.
Initiation stage:
la: when the eNB of the victim cell does not suffer any interference, the eNB of the attacking cell can go ahead using the corresponding subframe resource, instead of being silent, thereby improving the resource utilization ratio.
2a: the victim cell's eNB obtains a cell identifier through the UE measurement report, and decides to initiate an elCIC process for the offending cell's eNB, upon detection of a downlink interference imposed by the offending cell's eNB in the
HUH.
2: the victim cell's eNB sends an elCIC initiation request message to the offending cell's eNB. This message can carry the elCIC subframe configuration information requested by the victim cell's eNB.
The requested elCIC subframe configuration information can be a subset of the configuration of the available subframes indicated by the offending cell's eNB in step 1, or a percentage of the available subframes configuration, or an indication of the required subframe resource level indication. The main objective is: depending on the number of UEs interfering in the victim cell's eNB, the service requirement of the interfering UE, the QoS requirement (quality of service,
18/48 quality of service), the victim cell's eNB may request the use of a different amount of resource, and therefore the resource occupied will not be excessive, and the resources will be available to the UE with interference.
3.a: the offending cell's eNB decides which subframes are silent. Specifically, the decision is made according to the local resource usage, the local cell's eNB load, the victim cell's eNB load and the resource requested by the victim cell's eNB.
3. the eNB of the attacking cell notifies the configuration information of the silent subframe determined for the eNB of the victim cell. In addition, the configuration information can include the time to start using the configuration, indicating a specific time when the silent subframe will be used. The time is designed to maintain a processing synchronization of the silent subframes between the offending cell's eNB and the victim cell's eNB. Time information can be expressed by a specific subframe number.
4. a: the victim cell's eNB programs the UE with interference for the position of the corresponding silent subframe.
(optional): the victim cell's eNB sends a complete elCIC initiation message to the offending cell's eNB. Through this message, the offending cell's eNB knows that the victim cell's eNB accepts the configuration of the silent subframes. Upon receipt of the message, the offending cell's eNB sends a measurement control message to the UE. The measurement control message specifies that only silent subframes
19/48 need to be measured when the UE measures eNB signals from the neighboring victim cell. If this step is optional, the measurement control message will be sent to the UE after step 3.a.
Release stage:
5. a: the victim cell's eNB decides that it is not necessary to go ahead with elCIC, or decides that some silent subframes can be released.
5: the victim cell's eNB sends an elCIC release request message to the offending cell's eNB. This message can carry a subframe configuration information decided by the victim cell's eNB for release. Corresponding to step 2, the information about the subframes to be released can be a subset of the configuration of the silent subframes indicated by the offending cell's eNB in step 3, or a percentage of the available configured subframes, or an indication of the requested resource number level. subframe. The objective is: depending on the number of UEs interfering in the eNB, the service requirement of the interfering UE, the quality of service (QoS) requirement, the victim cell's eNB may use a different number of resources, and therefore the resource occupied is not excessive, and resources are available to the UE with interference.
6. a: the offending cell's eNB decides which silent subframes will be released. A released subframe is available for the offending cell's eNB. Specifically, the decision is made according to the local resource usage, the local cell's eNB load, the victim cell's eNB load and the resource requested by the cell's eNB
20/48 victim.
6: the offending cell's eNB notifies the configuration information of the silent subframes decided to release to the victim cell's eNB. In addition, the configuration information can include effective time, indicating the specific time when the release of the silent subframe will take effect. The effective time is designed to maintain a synchronized processing of the silent subframes between the offending cell's eNB and the victim cell's eNB. The effective time information can be expressed by a specific subframe number.
7.a: the eNB of the victim cell programs the UE with interference for the position of the corresponding silent subframe.
(optional): the victim cell's eNB sends a complete elCIC release message to the offending cell's eNB. Through this message, the eNB of the victim cell knows that the eNB of the attacking cell accepts the release of the silent subframes, and confirms the configuration of possible remaining silent subframes. Upon receipt of the message, the offending cell's eNB sends a measurement control message to the UE. The measurement control message specifies that only silent subframes need to be measured when the UE measures eNB signals from the neighboring victim cell. If this step is optional, the measurement control message can be sent to the UE after step 6.
303. The victim cell's eNB sends a configuration message that carries non-restrictive measurement configuration information to the UE.
21/48
304. The eNB of the victim cell sends a signal to the UE that carries information about a resource for measuring the restrictive measurement of the eNB of the offending cell.
After the UE receives the preceding message, an RLM (radio link measurement, radio link measurement) from the UE or CSI measurement (channel status information, channel status information) is performed according to the block of specified resource specific resource. For RRM measurement (radio resource measurement, radio resource measurement) (RSRP (received reference signal power, received reference signal power) / RSRQ (received reference signal quality, received reference signal quality )), the UE performs only a corresponding restrictive measurement according to the information about the restrictive measurement measurement result, or performs a measurement according to the specified resource block of the specific resource and performs an existing non-restrictive measurement.
305. The EU reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specific resource block of specific resource. The measurement result can be identified by the type of measurement, or the measurement performed according to the specific resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to a specified resource block of the specific resource and the non-restrictive measurement result.
In this modality, the UE in the victim cell's eNB reports the measurement result as a
22/48 point to point; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 5 is a signaling graph of how a UE in an eNB of a victim cell reports a measurement result according to a second embodiment of the present invention. The signal flow includes:
501. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
502. The offending cell's eNB exchanges the configuration information of the specific resource allocated with the victim cell's eNB.
For details, see figure 4. The difference of the steps in the first modality is: in the release process, step 5 is initiated by the eNB of the attacking cell, instead of by the eNB of the victim cell; step 6 is initiated by the eNB of the victim cell instead of the eNB of the offending cell; and step 7 is initiated by the offending cell's eNB, rather than the victim cell's eNB.
5: the offending cell's eNB sends an elCIC release request. Specifically, uplink interference from the interference UE is detected in order to know if there is an interference UE. If the uplink interference is lower than a pre-set limit, the offending cell's eNB will decide to send an elCIC release request. The release request can carry configuration information for silent subframes recommended for release, or new configuration information
23/48 silent subframes recommended for the victim cell's eNB.
(optional): the victim cell's eNB sends an elCIC release confirmation message to the offending cell's eNB. Furthermore, the configuration of the silent subframes recommended in steps 2 to 5 is confirmed, for example, with respect to whether it is to accept, which subframes are accepted or which subframes are rejected.
(optional): the offending cell's eNB sends a complete elCIC release message to the victim cell's eNB. In this way, the victim cell's eNB knows which subframes are released.
503. The victim cell's eNB configures the restrictive measurement measurement result according to the specific resource configuration information allocated to the offending cell's eNB or a subset of the configuration information, and sends a broadcast message carrying information about the restrictive measurement measurement result for the
HUH.
504. The victim cell's eNB sends the non-restrictive measurement configuration information to the UE.
505. The victim cell's eNB sends the measurement configuration information to the UE through a signal. The measurement configuration information carries a restrictive measurement start / stop indication, and a non-restrictive measurement start / stop indication for carrying out a corresponding measurement type; or carries a restrictive measurement start / stop indication, or a non-restrictive measurement start / stop indication for performing a measurement type
Corresponding 24/48. By default, the UE performs only a non-restrictive measurement.
For the UE that needs to perform a measurement according to the specified resource block of the specific resource, the offending cell's eNB sends a signal to the EU as an indication of restrictive measurement execution.
As a step in place of step 505, configure the report type according to a measurement type indication included in the measurement configuration information a non-restrictive measurement / restrictive measurement / both measurements or without the measurement type indication, meastype ENUMERATED {specificmeas, regularmeas, ..., both}. By default, only a non-restrictive measurement is performed.
If the signal received by the UE indicates that both restrictive and non-restrictive measurement are required, non-restrictive measurement and restrictive measurement according to a specific resource block of specific resource will be performed; if restrictive measurement is configured for the UE, the UE's RLM / CSI measurement will be the only measurement corresponding to the restrictive measurement.
506. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specific resource block of specific resource. The measurement result can be identified by the type of measurement, or the measurement performed according to the specific resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specific resource block of the specific resource and the
25/48 non-restrictive measurement result.
In this mode, a specific UE in the victim cell's eNB performs a measurement upon receipt of an initiation indication, and reports the measurement result as a point-to-point transfer basis; after receiving the measurement result from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 6 is a signaling table of how a UE in a victim cell reports a measurement result in accordance with a third embodiment of the present invention. The signal flow includes:
601. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
602. The attacking cell's eNB exchanges the configuration information of the specific resource allocated with the victim cell's eNB.
For details, see figure 4. The difference in the steps in the first modality is in step 1, in step 4, in step 6; and step 1 and step 6 are modified:
1, 6: the attacking cell's eNB sends a subframe configuration information (called an available subframe configuration) to elCIC (improved inter-cell interference coordination) to the victim cell's eNB in the process of establishing the X2 interface or updating the configuration of eNB. The subframe configuration information indicates that the offending cell's eNB makes these subframes silent. Upon receipt of the subframe configuration information, the
26/48 eNB of the victim cell programs the UE for the position of the silent subframe.
If the victim cell's eNB received the elCIC subframe configuration information from the host cell's eNB previously, the previous configuration will be ignored, and the last configuration will be applied. Therefore, this process initiated by the eNB of the host cell can start or release elCIC (a null configuration indicates an elCIC release).
: the victim cell's eNB sends a subframe configuration confirmation information for elCIC to the host cell's eNB. Therefore, the eNB of the attacking cell knows that the eNB of the victim cell will start elCIC in these subframes.
603. The victim cell's eNB configures a restrictive metering resource according to specific resource configuration information allocated by the host cell's eNB or a subset of the configuration information, and sends a broadcast message carrying information about the restrictive metering measurement feature for the UE. The broadcast message carries an interference limit such as RSRQ-threshold.
604. The victim cell's eNB sends the non-restrictive measurement configuration information to the UE.
When the UE reads the broadcast message, the restrictive resource configuration and the interference limit continue to exist in the UE variables, and are updated after the restrictive resource configuration and the interference limit is updated in the subsequent system message. The UE performs a non-restrictive measurement for
27/48 obtain a value representative of the level of interference,
for example, RSRQ-meas. If the measured value RSRQ-meas is bigger of that or equal to RSRQ-threshold, the UE yet will perform a measurement not restrictive. If the measured value RSRQ-meas is smaller of that or equal to RSRQ-threshold, the RLM / CSI of the UE will be measure of according to the block of specified resource in resource
specific. For RRM measurement (such as RSRP / RSRQ), the UE performs only the corresponding measurement according to the specified resource block of specific resource, or performs a measurement according to the specified resource block of specific resource and non-measurement restrictive.
605. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specified resource block of the specific resource. The measurement result can be identified by the type of measurement, or the measurement result performed according to the specified resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specified resource block of the specific resource and the non-restrictive measurement result.
Step 605 'in place of step 605: the UE reports the measurement result: the UE continues with the non-restrictive measurement execution. When the measured value RSRQ-meas is less than RSRQ-threshold, the UE performs a measurement according to the specified resource block of the specific resource, and performs a non-restrictive measurement. If the
28/48 RSRQ-meas measured value is less than RSRQ-threshold, the UE will report only the measurement result performed according to the specified resource block of specific resource; if the RSRQ-meas measured value is greater than or equal to the RSRQ-threshold, the UE will report only the non-restrictive measurement result. The measurement result can be identified by a measurement type.
In this modality, the UE in the victim cell's eNB performs a measurement by passing an interference limit, and reports the measurement result as a point-to-point transfer basis; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 7 is a signaling table of how a UE in an eNB of the victim cell reports a measurement result according to a fourth embodiment of the present invention. The signal flow includes:
701. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
702. The offending cell's eNB sends configuration information for the specific resource allocated to the victim cell's eNB.
703. The victim cell's eNB configures a restrictive measurement measurement result according to a specific resource's configuration information allocated by the offending cell's eNB or a subset of the configuration information, and sends a broadcast message that carries information about measurement measurement result
29/48 restrictive for the UE.
704. The victim cell's eNB sends the non-restrictive measurement configuration information to the UE.
When the UE reads the broadcast message, the restrictive resource configuration and the interference limit continue to exist in the UE variables, and are updated after the restrictive resource configuration and the interference limit are updated in the subsequent system message.
705. The UE receives a signal that carries an interference limit from the victim cell's eNB, for example, carries an RSRQ-threshold.
The UE performs a non-restrictive measurement, and obtains a value representative of the interference level, for example, RSRQ-meas.
If the measured value RSRQ-meas is greater than or equal to RSRQ-threshold, the UE will still perform a non-restrictive measurement.
If the measured value RSRQ-meas is less than or equal to RSRQ-threshold, the UE RLM / CSI will be measured according to the specified resource block of the specific resource. For RRM measurement (such as RSRP / RSRQ), the UE performs only the corresponding measurement according to the specified resource block of specific resource, or performs a measurement according to the specified resource block of specific resource and non-measurement restrictive.
706. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specified resource block of the specific resource. The measurement result can be
30/48 identified by the type of measurement, or the measurement result performed according to the specified resource block of specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specified resource block of the specific resource and the non-restrictive measurement result.
In this modality, a UE specific to the victim cell's eNB performs a measurement using an interference limit, and reports the measurement result as a basis for the point-to-point transfer; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 8 is a signaling table of how a UE in an offending cell reports a measurement result according to a first embodiment of the present invention. The signal flow includes:
801. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
802. 0 eNB of the attacking cell send the information in configuration in non-restrictive measurement for the HUH. 803. 0 eNB of the attacking cell send the information in configuration in specific resource allocated eNB in this
cell to the UE through signaling. The network can decide whether to send the signaling to the UE according to the value, such as RSRQ-meas, representative of the level of interference, in which the representative value of level of interference is obtained through restrictive performed by the UE.
of a measurement not
31/48
After the UE receives the preceding message, the UE RLM / CSI is measured according to the specified resource block for the specific resource. For RRM measurement (such as RSRP / RSRQ), the UE performs only the corresponding measurement according to the specified resource block of specific resource, or performs a measurement according to the specified resource block of specific resource and non-measurement restrictive.
804. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specified resource block of the specific resource. The measurement result can be identified by the type of measurement, or the measurement result performed according to the specified resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specified resource block of the specific resource and the non-restrictive measurement result.
In this mode, the UE of the offending cell's eNB reports the measurement result as a point-to-point transfer basis; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 9 is a signaling table of how a UE in an offending cell reports a measurement result in accordance with a second embodiment of the present invention. The signal flow includes:
901. The offending cell's eNB decides a specific resource allocation according to an allocation algorithm
32/48 specific feature.
902. A broadcast message is sent to the UE, where the broadcast message carries specific resource configuration information allocated from the offending cell's eNB.
903. The offending cell's eNB sends the non-restrictive measurement configuration information to the UE.
904. For the UE that needs to perform a measurement according to the specified resource block of the specific resource, the offending cell's eNB sends a measurement configuration information to the UE through a signal. The measurement configuration information carries a restrictive measurement start / stop indication, and a non-restrictive measurement start / stop indication for carrying out a corresponding measurement type; or carries a restrictive measurement start / stop indication, or a non-restrictive measurement start / stop indication for carrying out a corresponding measurement type. By default, the UE performs only a non-restrictive measurement. The offending cell's eNB network can perform a non-restrictive measurement according to the UE to obtain a representative level of interference value, for example, to obtain a value of RSRQ-meas as a basis for deciding whether to send a signal to the UE.
As a step in place of step 904, configure the report type according to a measurement type indication included in the measurement configuration information a non-restrictive measurement / restrictive measurement / both measurements or without the measurement type indication, meastype ENUMERATED {specif icmeas, regularmeas, both}. By default,
33/48 only a non-restrictive measurement is performed.
If the signaling received by the UE indicates that both restrictive and non-restrictive measurement are required, non-restrictive measurement and restrictive measurement according to a specific resource-specific resource block will be performed; if restrictive measurement is configured for the UE, the UE's RLM / CSI measurement will be the only measurement corresponding to the restrictive measurement.
905. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specific resource block of specific resource. The measurement result can be identified by the type of measurement, or the measurement performed according to the specific resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specific resource block of the specific resource and the non-restrictive measurement result.
In this modality, a specific UE in the offending cell's eNB performs a measurement upon receipt of an initiation indication, and reports the measurement result as a point-to-point transfer basis; after receiving the measurement result from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 10 is a signaling table of how a UE in an offending cell reports a measurement result in accordance with a third embodiment of the present invention. The signal flow includes:
34/48
1001. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
1002. A broadcast message is sent to the UE, where the broadcast message carries information about the measurement result of the restrictive cell's eNB measurement, and carries an interference limit, such as RSRQ-threshold.
The eNB of the offending cell can decide whether to send a signal to the UE according to the value (such as RSRQ-meas) representative of the level of interference, where the representative value of the level of interference is obtained through a non-measurement restrictive action carried out by
HUH.
1003. The offending cell's eNB sends the non-restrictive measurement configuration information to the UE.
When the UE reads the preceding message, the restrictive resource configuration and the interference limit continue to exist in the UE variables, and are updated after the restrictive resource configuration and the interference limit is updated in the subsequent system message. The UE performs a non-restrictive measurement to obtain a value representative of the interference level, for example, RSRQ-meas.
If the measured value RSRQ-meas is greater than or equal to RSRQ-threshold, the UE will still perform a non-restrictive measurement; if the measured value RSRQ-meas is less than RSRQ-threshold, the UE RLM / CSI will be measured according to the specified resource block of the specific resource. For RRM measurement (such as RSRP / RSRQ), the UE performs only the
35/48 corresponding measurement according to the specified resource block of specific resource, or perform a measurement according to the specified resource block of specific resource and non-restrictive measurement.
1004. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specified resource block of the specific resource. The measurement result can be identified by the type of measurement, or the measurement result performed according to the specified resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specified resource block of the specific resource and the non-restrictive measurement result.
In this modality, the UE in the eNB of the offending cell performs a measurement using an interference limit, and reports the measurement result as a point-to-point transfer basis; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
Figure 11 is a signaling table of how a UE in an eNB of the offending cell reports a measurement result according to a fourth embodiment of the present invention. The signal flow includes:
1101. The offending cell's eNB decides on a specific resource allocation according to the specific resource allocation algorithm.
1102. A broadcast message is sent to the UE, where the broadcast message carries resource information
36/48 measurement for restrictive measurement of the aggressor cell's eNB.
1103. The offending cell's eNB sends the non-restrictive measurement configuration information to the UE.
1104. The signaling sent by the aggressor cell's eNB to the UE carries an interference limit, such as RSRQ-threshold.
The offending cell's eNB can decide whether to send a signal to the UE according to the value, such as RSRQ-meas, representative of interference level, in which the representative value of interference level is obtained through a non-measurement restrictive action carried out by the EU. Interference may vary between different UEs.
When the UE reads the preceding message, the restrictive resource configuration and the interference limit continue to exist in the UE variables, and are updated after the restrictive resource configuration and the interference limit is updated in the subsequent system message. If the UE receives an interference limit, such as RSRQ-threshold, from the victim cell's eNB, the UE will perform a non-restrictive measurement to obtain a representative value of the interference level, for example, RSRQ-meas.
If the measured value RSRQ-meas is greater than or equal to RSRQ-threshold, the UE will still perform a non-restrictive measurement.
If the measured value RSRQ-meas is less than RSRQthreshold, the UE RLM / CSI will be measured according to the specified resource block of the specific resource. For RRM measurement (such as RSRP / RSRQ), the UE performs only the
37/48 corresponding measurement according to the specified resource block of specific resource, or perform a measurement according to the specified resource block of specific resource and non-restrictive measurement.
1105. The UE reports the measurement result.
The UE reports only the measurement result of the measurement performed according to the specified resource block of the specific resource. The measurement result can be identified by the type of measurement, or the measurement result performed according to the specified resource block of the specific resource is identified by a new type of event; or the UE reports the measurement result performed according to the specified resource block of the specific resource and the non-restrictive measurement result.
In this modality, the UE in the eNB of the offending cell performs a measurement using an interference limit, and reports the measurement result as a point-to-point transfer basis; after receiving the measurement report from the UE, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB.
One embodiment of the present invention provides a procedure for how a UE in an offending cell selects an eNB. The procedure includes: the offending cell's eNB decides a specific resource allocation according to a specific resource allocation algorithm. A broadcast message is sent to the UE, where the broadcast message carries information about the measurement result of the restrictive measurement of the offending cell's eNB, and carries an interference limit, such as
38/48
RSRQ-threshold. The offending cell's eNB network can perform a non-restrictive measurement according to the UE, and obtain a representative level of interference level, for example, RSRQ-meas. The offending cell's eNB sends the non-restrictive measurement configuration information to the UE. When the UE reads the broadcast message, the measurement resource information for the restrictive measurement and the interference limit continues to exist in the UE variables, and is updated after the restrictive resource configuration and the interference limit is updated in the message subsequent system The UE performs a non-restrictive measurement to obtain a representative level of interference level, for example, RSRQ-meas. If the measured value RSRQ-meas is greater than or equal to the RSRQ-threshold, the UE will still perform a non-restrictive measurement; if the measured value RSRQ-meas is less than the RSRQ-threshold, the RSRQ of the UE will be measured according to the specified resource block of the specific resource. While the UE reselects an eNB from the cell, the UE reports the measurement result performed according to the specified resource block specific to the RRC layer, and evaluates criteria for selecting the cell's eNB.
One embodiment of the present invention provides a procedure for how a UE in a victim cell selects an eNB. The procedure includes: the offending cell's eNB decides a specific resource allocation according to a specific resource allocation algorithm. The offending cell's eNB exchanges specific resource allocation configuration information with the victim cell's eNB: the victim cell's eNB sends a message of
39/48 broadcast to the UE, where the broadcast message carries the resource allocation information specific to the offending cell's eNB as a measurement resource information for restrictive measurement, and the broadcast message still carries a limit of interference, such as RSRQ-threshold. The UE performs a non-restrictive measurement, and obtains a representative interference level value, for example, RSRQ-meas. When the UE reads the broadcast message, the measurement resource information for the restrictive measurement and the interference limit continues to exist in the UE variables, and is updated after the restrictive resource configuration and the interference limit is updated in the message. subsequent system The UE performs a non-restrictive measurement to obtain a representative level of interference level, for example, RSRQ-meas. If the measured value RSRQ-meas is greater than or equal to RSRQ-threshold, the UE will still perform a non-restrictive measurement; if the measured value RSRQ-meas is less than the RSRQ-threshold, the RSRQ of the UE will be measured according to the specified resource block of the specific resource. While the UE reselects an eNB from the cell, the UE reports the measurement result performed according to the specified resource block specific to the RRC layer, and evaluates criteria for selecting the cell's eNB. The selection criteria for a cell eNB: the measurement resource information for restrictive measurement, which is obtained by the UE in the system message, can be a resource used for ICIC or a subset of the resource, and an interference limit, such as an RSRQ value. By default, the UE performs only a non-restrictive measurement, and compares a
40/48 interference value representative of an interference level with the interference limit, where the interference value is obtained through a non-restrictive measurement. If the interference value is greater than or equal to the interference limit, the UE will perform the corresponding non-restrictive measurement according to the measurement configuration information; if the interference value is less than the interference limit, the UE will initiate a restrictive measurement according to the specific resource configuration information allocated. Alternatively, if the interference value is less than the interference limit, the UE will start a restrictive measurement according to the configuration information of the specific allocated resource, and continue the non-restrictive measurement at the same time, until the interference value obtained non-restrictive measurement is greater than or equal to the interference limit.
In the previous mode, the interfering UE can perform an accurate measurement, and report the measurement result as a point-to-point transfer basis. Upon receipt of the measurement report, the offending cell's eNB decides to make a point-to-point transfer to the victim cell's eNB. The point-to-point transfer command can optionally carry a notification to the victim cell's eNB. The notification indicates that the UE programming mode is an enhanced elCIC programming mode (specifically, programming is performed only at the designated resource for interference coordination in the offending cell's eNB), or indicates that the measurement result serving as a base
41/48 of the decision derives from the measurement of a restrictive appeal. The previous technical solution solves the following problems: when the UE is interfered, the UE performs only a non-restrictive measurement (it is assumed that the quality of the measured cell is very low, and no eNB better than the eNB in the victim cell is available or the operator expects the UE to prefer the eNB in the victim cell), obtain a non-restrictive measurement measurement result, and report the result. In this case, if the UE is located in the victim cell, the UE will make a point-to-point transfer in futility, or, if the UE measures only a specific resource, the network will be unable to perform interference coordination; if the UE is located in the offending cell's eNB, the UE will not have the opportunity to make a point-to-point transfer to the eNB in the victim cell, or, if the UE measures only a specific resource, too many UEs will do a point transfer to the point for the victim cell's eNB, which will lead to a congestion of the victim cell's eNB.
Corresponding to the preceding method modality, a measuring device for interference coordination is provided in an embodiment of the present invention. As shown in figure 12, the device includes:
an acquisition unit 121, configured to obtain measurement configuration information and obtain measurement resource information for restrictive measurement;
a measurement unit 122, configured for the measurement execution according to the information of
42/48 measurement configuration and measurement resource information for restrictive measurement, and obtaining a measurement result; and a reporting unit 123, configured to report the measurement result.
Optionally, the acquisition unit 121 is specifically configured to obtain the measurement resource information for restrictive measurement, where the measurement resource information for restrictive measurement restricts the measured resource with respect to the time domain, the frequency domain, the space domain, the code domain; the measurement resource information for restrictive measurement indicates a resource used for ICIC or a subset of the resource, and is obtained through a broadcast or signal message. Obtaining unit 121 is specifically configured to obtain measurement configuration information, which includes: configuration information for non-restrictive measurement, and a specific resource measurement indication corresponding to the measurement resource information for restrictive measurement, and a non-restrictive measurement indication; configuration information for non-restrictive measurement, and a specific resource measurement indication corresponding to the measurement resource information for restrictive measurement, or a non-restrictive measurement indication; obtained through a broadcast message or signaling; where the measurement indication includes start, stop. Obtaining unit 121 is specifically configured to obtain measurement configuration information, which includes: configuration information for non-restrictive measurement
43/48 and a restrictive measurement indication, and a non-restrictive measurement indication for carrying out the corresponding measurement type; configuration information for non-restrictive measurement and a restrictive measurement indication, or a non-restrictive measurement indication for carrying out the corresponding measurement type; obtained through a broadcast message or signaling; where the measurement indication is a start, stop indication. The measurement result obtained by the measurement unit 122 is identified by a measurement type or an event type.
Optionally, the obtaining unit 121 still obtains an interference limit while obtaining the measurement resource information for restrictive measurement via a broadcast message or a signal. Optionally, the measurement unit 122 is specifically configured to perform a corresponding non-restrictive measurement according to the measurement configuration information, obtain an interference value representative of the interference level, and compare the interference value with the interference limit; the measurement unit 122 performs the corresponding non-restrictive measurement according to the measurement configuration information, obtaining a non-restrictive measurement measurement result, and the non-restrictive measurement measurement result report to the cell base station service, if the interference value is greater than or equal to the interference limit; the measurement unit 122 starts a specific resource measurement corresponding to the measurement resource information for restrictive measurement, and obtains the measurement result of the resource measurement
44/48 specific, if the interference value is less than the interference limit, where the measurement result is reported by the reporting unit 123; or measurement unit 122 performs a corresponding non-restrictive measurement and obtains the measurement result from the non-restrictive measurement, and in the meantime, measures a specific resource corresponding to the measurement resource information for restrictive measurement and obtains a measurement result from the resource specific, and report unit 123 reports the result of the non-restrictive measurement and the measurement result of the specific resource to the base cell of the service cell; or measurement unit 122 performs a corresponding non-restrictive measurement and obtains the result of the non-restrictive measurement, and in the meantime, measures the specific resource corresponding to the measurement resource information for restrictive measurement and obtains the measurement result of the specific resource, but reporting unit 123 reports only the measurement result of the specific resource to the base station of the service cell, until the interference value is greater than or equal to the interference limit; Restrictive measurement begins as soon as the UE receives measurement resource information for restrictive measurement, and in the meantime, non-restrictive measurement continues.
Optionally, the acquisition unit 121 is specifically configured to obtain measurement configuration information from the victim cell's base station via the UE located in the victim cell, and obtain the measurement resource information for restrictive measurement from the base station. the victim cell; or the UE located
45/48 in the offending cell obtains the measurement configuration information from the offending cell's base station, and obtains the measurement resource information for restrictive measurement from the offending cell, where the measurement configuration information and the information measurement features are applicable to the measurement of a neighboring victim cell. Optionally, after receiving the measurement result reported by reporting unit 123, the base station of the offending cell decides to make a
transfer in point to point to the station base gives victim cell in according to measuring result, and indicates a mode in programming EU for the station base gives victim cell.
In the previous device mode, the interfering UE can perform a measurement accurately, and report the measurement result as a point-to-point transfer basis. After receiving the measurement report, the offending cell's eNB decides to transfer from point to point to the victim cell's eNB. The point-to-point transfer command can optionally carry a notification to the victim cell's eNB. The notification indicates that the UE programming mode is an improved elCIC programming mode (specifically, the programming is performed only on the resource designated for interference coordination of the offending cell's eNB), or indicates that the measurement result serving as a basis of the decision derives from the measurement of restrictive appeal.
Corresponding to the previous method and device modality, a shipping system for
46/48 interference coordination is provided in an embodiment of the present invention. As shown in figure 13, the system includes an eNB 10 from a victim cell, and an eNB 11 from an offending cell. The victim cell's eNB 10 is configured to send an elCIC request to an attacking cell's eNB 11 according to the elCIC request, and send the decided subframe configuration information as a measurement resource information for restrictive measurement. for the eNB 10 of the victim cell.
Optionally, the aggressor cell's eNB 11 sends an available subframe configuration information for elCIC to the victim cell's eNB 10, before the victim cell's eNB 10 sends the elCIC request to the aggressor cell's eNB 11. The eNB 11 of the offending cell is specifically configured to decide the subframe configuration information for elCIC applied between the eNB 10 of the victim cell and the eNB 11 of the offending cell, according to the subframe configuration information available for the eNB 11 of the aggressor cell for elCIC, and according to the elCIC subframe configuration information carried in the elCIC request.
Optionally, before the victim cell's eNB 10 sends the elCIC request to the offending cell's eNB 11, a message is sent between the victim cell's eNB 10 and the attacking cell's eNB 11, where the message indicates a local capacity elCIC to the opposite side. After the victim cell's eNB 10 receives the subframe configuration information sent by the offending cell's eNB 11 and has decided to apply it to the elCIC, the victim cell's eNB 10 can send a
47/48 victim cell fails usable confirmed subframe setting for elCIC for eNB 11 of the offending cell. The goal is to maintain a synchronization of radio resource usage. If the eNB of em receives the configuration information sent by the eNB of the offending cell, the eNB of the offending cell will not be aware for lack of confirmation, which leads to a tremendous waste of radio resources.
When it detects that the measurement report submitted by the aggressor cell's eNB 11 exceeds a preset limit, the victim cell's eNB 10 confirms that the victim cell's eNB 10 is interfered by the aggressor cell's eNB 11. The subframe configuration information decided to be applied to the elCIC, which is sent by the attacking cell's eNB 11 to the victim cell's eNB 10, can include time to start using the subframe configuration. The elCIC request sent by the victim cell's eNB 10 to the offending cell's eNB 11 carries an indication of interference level. The level of interference can be a high, medium or low level. Depending on the level of interference, the offending cell's eNB can reduce the transmission power or make the subframe completely silent, in order to reduce the interference.
In the previous system mode, the interfering UE can perform a measurement accurately, and report the measurement result as a point-to-point transfer basis. After receiving the measurement report, the offending cell's eNB decides to transfer from point to point to the cell's eNB
48/48 victim. The point-to-point transfer command can optionally carry a notification to the victim cell's eNB. The notification indicates that the UE programming mode is an enhanced elCIC programming mode (specifically, programming is performed only at the designated resource for interference coordination in the offending cell's eNB), or indicates that the measurement result serving as a basis of the decision derives from the measurement of a restrictive appeal.
People of ordinary skill in the art should understand that all or part of the steps of the method specified in any of the above modes can be implemented by a program instructing relevant hardware. The program can be stored on a storage medium that can be read on a computer, such as a ROM / RAM, a magnetic disk or CD-ROM. When the program runs, the program performs all or part of the steps described above.
1/4

权利要求:
Claims (6)
[1]
1. Measurement method for interference coordination, characterized by the fact that it comprises:
obtaining measurement configuration information and obtaining measurement resource information for restrictive measurement;
executing the measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and obtaining a measurement result; and the measurement result report, in which the measurement resource information for restrictive measurement comprises: measurement resource information for restrictive measurement restricts the measured resource with respect to the time domain; and the measurement resource information for restrictive measurement indicates the resource used for inter-cell interference coordination (ICIC) or a subset of the resource used for ICIC and is obtained through a broadcast or signal message.
[2]
2. Method, according to claim 1, characterized by the fact that:
obtaining measurement configuration information and obtaining measurement resource information for restrictive measurement comprise:
obtaining, by user equipment located in a victim cell, the measurement configuration information from the base station of the victim cell, and obtaining the measurement resource information for restrictive measurement from the base station of the victim cell; or, obtaining by user equipment located at
Petition 870180011745, of 02/09/2018, p. 47/52
2/4 an offending cell, from the measurement configuration information from the offending cell's base station, and obtaining the measurement resource information for restrictive measurement from the offending cell's base station, where the configuration information from measurement and the measurement resource information for restrictive measurement are applicable to a measurement of a neighboring victim cell.
[3]
3. Method, according to claim 2, characterized by the fact that:
after obtaining, by user equipment located in the offending cell, the measurement configuration information from the offending cell's base station, and obtaining the measurement resource information for restrictive measurement from the offending cell's base station, the method still understand:
the report, by the user equipment located in the attacking cell, of the measurement result of measurement from the neighboring victim cell to the base station of the attacking cell, so that the base station of the attacking cell determines a transfer from point to point to the base station of the victim cell according to the measurement result and instruct the base station of the victim cell to program only in the interference coordination feature of the base station of the attacking cell.
[4]
4. Measuring device for interference coordination, characterized by the fact that it comprises:
a retrieval unit, configured to obtain measurement configuration information and obtain measurement resource information for restrictive measurement; a unit of measurement, configured for the execution of
Petition 870180011745, of 02/09/2018, p. 48/52
3/4 measurement according to the measurement configuration information and the measurement resource information for restrictive measurement, and obtaining a measurement result; and a reporting unit, configured to report the measurement result; wherein the measurement resource information for restrictive measurement comprises: the measurement resource information for restrictive measurement restricts the measured resource with respect to the time domain; and the measurement resource information for restrictive measurement indicates the resource used for inter-cell interference coordination (ICIC) or a subset of the resource used for ICIC and is obtained through a broadcast or signal message.
[5]
5. Apparatus, according to claim 4, characterized by the fact that:
the acquisition unit be specifically configured to obtain measurement configuration information from the base station of the victim cell, and obtain the measurement resource information for restrictive measurement from the base station of the victim cell; or, obtaining measurement configuration information from the offending cell's base station, and obtaining measurement resource information for restrictive measurement from the offending cell's base station, where the measurement configuration information and the measurement resource information for restrictive measurement is applicable for measuring a neighboring victim cell.
[6]
6. Apparatus, according to claim 5, characterized by the fact that the apparatus is located in the aggressor cell;
Petition 870180011745, of 02/09/2018, p. 49/52
4/4 the reporting unit additionally configured to report the measurement result of the neighboring victim cell to the base station of the attacking cell, so that the base station of the attacking cell determines a point-to-point transfer to the base station of the victim cell according to the measurement result and instruct the base cell of the victim cell to program only in the interference coordination feature of the base cell of the offending cell.
Petition 870180011745, of 02/09/2018, p. 50/52
1/12

类似技术:

---

公开号 | 公开日 | 专利标题

---

BR112013007544B1|2018-07-17|measurement and dispatch method, interference coordination apparatus and system

---

JP6779914B2|2020-11-04|RRM measurement and reporting for license assistance access

---

US10999774B2|2021-05-04|Method and apparatus for inter-cell load distribution and interference mitigation in wireless communication system

---

US9203574B2|2015-12-01|Method of UE RSRQ measurement precaution for interference coordination

---

US9014141B2|2015-04-21|Carrier-aggregation-based handover method

---

EP2599343B1|2019-04-10|Method for ue pattern indication and measurement for interference coordination

---

CN102036296B|2016-08-03|A kind of determine the method for uplink-downlink configuration, system and equipment

---

US8660092B2|2014-02-25|Method and apparatus for handover in wireless communication system

---

US10827369B2|2020-11-03|Cell discovery and measurement method, base station and UE

---

US9907000B2|2018-02-27|Method and apparatus for identifying microcells in macrocells in wireless communication systems, and handover method and system using same

---

EP2918119A1|2015-09-16|Interference- protected control message transmission in a mobile communications network

---

EP2761789B1|2015-09-30|A method and apparatus for signal quality determination in a communication network

---

WO2017020192A1|2017-02-09|Load balancing method and device

---

US11277779B2|2022-03-15|Method and apparatus for applying resources in heterogeneous network system

---

WO2021010890A1|2021-01-21|Conditional configuration in a wireless communication network

同族专利:

---

公开号 | 公开日

---

ES2536530T3|2015-05-26|

---

EP2846579A1|2015-03-11|

---

EP2615864A1|2013-07-17|

---

CN102448102A|2012-05-09|

---

WO2011150827A1|2011-12-08|

---

JP5707498B2|2015-04-30|

---

CN108462976B|2021-10-26|

---

EP2615864B1|2015-02-18|

---

ES2577134T3|2016-07-13|

---

CN102448102B|2014-11-05|

---

BR112013007544A2|2016-07-05|

---

EP3007483A1|2016-04-13|

---

US20130267230A1|2013-10-10|

---

US10623969B2|2020-04-14|

---

EP3007483B1|2019-07-10|

---

JP2013540389A|2013-10-31|

---

CN108462976A|2018-08-28|

---

EP2615864A4|2013-10-09|

---

EP2846579B1|2016-03-16|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

ES2298696T3|2004-05-04|2008-05-16|Alcatel Lucent|METHOD OF COORDINATION OF INTER-CELL INTERFERENCE WITH POWER PLANNING IN A OFDM MOBILE COMMUNICATION SYSTEM.|

---

EP1775978B1|2005-06-15|2009-07-29|Alcatel Lucent|A method for uplink interference coordination in single frequency networks, a base station and a mobile network therefor|

---

EP3461213A1|2005-11-04|2019-03-27|LG Electronics Inc.|Random access dimensioning methods and procedures for frequency division multiplexing access systems|

---

CN101009541B|2006-01-23|2011-04-20|华为技术有限公司|Disturbance coordination method and device of OFDMA system|

---

JP4727438B2|2006-02-03|2011-07-20|京セラ株式会社|Mobile terminal and communication method|

---

AT415796T|2006-03-20|2008-12-15|Alcatel Lucent|METHOD FOR CLASSIFICATION OF USER DEVICES TO SUBSISTERS IN A MULTI-CELL OR MULTI-SECTOR COMMUNICATION NETWORK WITH FDM TRANSMISSION, A BASE STATION AND A NETWORK THEREFOR|

---

GB0616682D0|2006-08-22|2006-10-04|Nec Corp|Mobile telecommunications|

---

US10484946B2|2007-01-12|2019-11-19|Electronics And Telecommunications Research Institute|Method of reporting measurement information in packet based on cellular system|

---

US20080268833A1|2007-03-30|2008-10-30|Leping Huang|System and Method for Self-Optimization of Interference Coordination in Communication Systems|

---

US8493919B2|2007-09-21|2013-07-23|Qualcomm Incorporated|Interference mitigation in a wireless communication system|

---

CN101420746B|2007-10-26|2011-05-11|中兴通讯股份有限公司|Method for interference coordination between cells and interference coordination information transmission method therefor|

---

CN101828359B|2007-12-03|2012-11-14|中兴通讯股份有限公司|A method for coordinating the resources between cells|

---

US7920494B2|2008-01-04|2011-04-05|Motorola Mobility, Inc.|Method and apparatus for performing mobility measurements in a communication network|

---

CN101541088A|2008-03-19|2009-09-23|中国移动通信集团公司|Method, device and system for eliminating interference among cells|

---

US8260206B2|2008-04-16|2012-09-04|Qualcomm Incorporated|Methods and apparatus for uplink and downlink inter-cell interference coordination|

---

US9974065B2|2008-06-25|2018-05-15|Qualcomm Incorporated|Dynamic control blanking in heterogeneous networks|

---

JP2011525759A|2008-07-07|2011-09-22|聯發科技股▲ふん▼有限公司|Scanning method of adjacent base station and communication apparatus using the same|

---

US9867203B2|2008-07-11|2018-01-09|Qualcomm Incorporated|Synchronous TDM-based communication in dominant interference scenarios|

---

US8416736B2|2008-07-11|2013-04-09|Qualcomm Incorporated|Candidate set management in a heterogeneous network|

---

CN101631351A|2008-07-14|2010-01-20|中兴通讯股份有限公司|Measurement control method|

---

US9775067B2|2008-10-20|2017-09-26|Telefonaktiebolaget Lm Ericsson |Intercell interference coordination for radio resource control|

---

CN101772118B|2008-12-31|2013-08-07|华为技术有限公司|Cell reselection method and cell reselection device|

---

US8670432B2|2009-06-22|2014-03-11|Qualcomm Incorporated|Methods and apparatus for coordination of sending reference signals from multiple cells|

---

EP2494808B1|2009-10-26|2014-07-16|Telecom Italia S.p.A.|Radio resource scheduling for intra-system interference coordination in wireless communication systems|

---

US8599708B2|2010-01-14|2013-12-03|Qualcomm Incorporated|Channel feedback based on reference signal|

---

EP2532186B1|2010-02-03|2015-11-04|Nokia Solutions and Networks Oy|Coordinating radio resource partitioning in a relay enhanced telecommunication network|

---

US9220028B2|2010-02-12|2015-12-22|Blackberry Limited|Methods and apparatus to perform measurements|

---

EP2553970B1|2010-03-29|2019-07-24|LG Electronics Inc.|Method and apparatus for measurement for inter-cell interference coordination in radio communication system|

---

CN101808409B|2010-04-01|2015-03-25|中兴通讯股份有限公司|Method and system for configuration of measurement reference signals in LTE-A system|

---

US9125072B2|2010-04-13|2015-09-01|Qualcomm Incorporated|Heterogeneous network user equipment radio resource management measurements|

---

US8995281B2|2010-05-10|2015-03-31|Nokia Solutions And Networks Oy|Logged drive test reporting|US9288680B2|2012-03-22|2016-03-15|Alcatel Lucent|Almost blank subframe duty cycle adaptation in heterogeneous networks|

---

WO2013166624A1|2012-05-11|2013-11-14|华为技术有限公司|Method, ue, base station, and system for triggering channel state information non-periodic feedback|

---

CN104170449A|2012-05-11|2014-11-26|阿尔卡特朗讯|Method and apparatus for invoking a response of the current TDD subframe configuration|

---

CN103796239A|2012-11-02|2014-05-14|北京三星通信技术研究有限公司|Method and apparatus for eliminating interference among districts|

---

CN103813467B|2012-11-02|2019-02-05|中兴通讯股份有限公司|A kind of sending method of MTC indication signaling and base station, MTC dispatching method|

---

EP2944146A1|2013-01-08|2015-11-18|Telefonaktiebolaget L M Ericsson |A radio node, a controlling node, a coordinating node and methods therein|

---

CN104170433B|2013-01-24|2018-03-09|华为技术有限公司|A kind of measuring method, user equipment, base station and wireless communication system|

---

US10122597B2|2013-10-24|2018-11-06|Cellco Partnership|Detecting poor performing devices|

---

WO2015072902A1|2013-11-12|2015-05-21|Telefonaktiebolaget L M Ericsson |Reducing interference between network nodes|

---

CN104640221A|2013-11-13|2015-05-20|中兴通讯股份有限公司|Control channel interference coordination methods, control channel interference coordination system, control channel interference coordination device and control channel interference coordination base station|

---

ES2728927T3|2014-01-29|2019-10-29|Interdigital Patent Holdings Inc|Resource selection for discovery or communication from device to device|

---

CN110769496A|2014-03-19|2020-02-07|交互数字专利控股公司|WTRU and method executed by WTRU|

---

JP6207440B2|2014-03-20|2017-10-04|Kddi株式会社|Maintenance management apparatus, wireless communication system, usage architecture determination method, and computer program|

---

JP6207442B2|2014-03-20|2017-10-04|Kddi株式会社|Base station apparatus, usage architecture determination method, and computer program|

---

JP6207441B2|2014-03-20|2017-10-04|Kddi株式会社|Base station apparatus, architecture information acquisition method, and computer program|

---

US9635566B2|2014-04-25|2017-04-25|At&T Intellectual Property I, L.P.|Enhancement of access points to support heterogeneous networks|

---

US9516564B2|2014-04-25|2016-12-06|At&T Intellectual Property I, L.P.|Enhancement of a cell reselection parameter in heterogeneous networks|

---

WO2016021625A1|2014-08-05|2016-02-11|京セラ株式会社|Base station and user terminal|

---

WO2016043512A1|2014-09-18|2016-03-24|엘지전자 주식회사|Method for eliminating inter-cell interference in non-licensed band in wireless communication system and apparatus therefor|

---

US9621294B2|2014-10-02|2017-04-11|At&T Intellectual Property I, L.P.|Enhancement of inter-cell interference coordination with adaptive reduced-power almost blank subframes based on neighbor cell profile data|

---

EP3217748B1|2014-11-06|2021-02-17|Huawei Technologies Co., Ltd.|Data transmission method and apparatus|

---

CN108713332B|2016-03-21|2020-10-27|华为技术有限公司|Cell measurement method in heterogeneous network, user equipment and base station|

---

US10484992B2|2017-04-05|2019-11-19|Qualcomm Incorporated|Channel reservation for multi-user scheduling|

---

CN110972188A|2018-09-28|2020-04-07|成都华为技术有限公司|Method and device for reporting measurement result of interference measurement|

---

EP3952412A1|2019-03-27|2022-02-09|Ntt Docomo, Inc.|Terminal|

法律状态:
2018-06-12| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

---

2018-07-17| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|

优先权:

---

申请号 | 申请日 | 专利标题

---

CN201010298597.4A|CN102448102B|2010-09-30|2010-09-30|Method, device and system for measuring and sending interference coordination|

---

PCT/CN2011/074992|WO2011150827A1|2010-09-30|2011-05-31|Measurement and transmission method, device and system for interference coordination|

---