• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    method and apparatus for transmitting buffer status report over wireless network. The present invention relates to a method and an apparatus for transmitting a report of the status of a buffer in a wireless network, where a user equipment is configured with a plurality of supports and components, the user equipment obtains a quantity of data to be transmitted after the respective media access layer protocol data units are generated, generates the uplink buffer status report message according to the amount of data to be transmitted, and informs the message of uplink buffer status report to a base station servicing user equipment. the invention addresses the problem of how to report buffer state information when there is a plurality of transport blocks, that is, a plurality of media access layer protocol data units, in a transport time slot. with the solution of the present invention, the base station can definitely know how many uplink resources can be allocated to the user equipment to ensure more efficient scheduling.
    公开号:BR112012028070B1
    申请号:R112012028070-8
    申请日:2010-05-03
    公开日:2021-06-01
    发明作者:Pingping Wen；Tao Yang
    申请人:Alcatel Lucent；
    IPC主号:
    专利说明:

    Field of Invention
    [0001] The present invention relates to wireless communications and particularly to a base station and user equipment based on aggregation of support in LTE-A. Background of the invention.
    [0002] A buffer state report (BSR) is of great importance in an uplink system due to its provision of additional User Equipment (UE) information needed for programming in a base station (NodeB or evolved eNB). In Long Term Evolution Advance (LTE-A) Version 8/9, a buffer state report is relatively simple because there is only one Access Control Means Protocol Data Unit (MAC PDU) in each Time Interval of Transport (TTI). However, in LTE-A Version 10, a plurality of MAC PDUs can be transmitted in a TTI due to the introduction of Carrier Aggregation (CA), i.e., a plurality of Component Carriers (CCs), and thus it is desirable to address some issues new ones occurring with a buffer state report. Invention Summary
    [0003] The invention considers a new feature in LTE-A to establish a buffer status report rule. The invention provides a buffer status reporting mechanism for a communication system with support aggregation.
    [0004] According to a first aspect of the invention, a method is provided for informing a report message of the status of an uplink buffer in a user equipment configured with a plurality of component bearers, the method including the steps of: A. obtaining an amount of data to be transmitted after the respective access media layer protocol data units corresponding to the respective component carriers are generated; B. generating the uplink buffer status report message according to the amount of data to be transmitted; and C. informing the buffer status report message of an uplink to a base station servicing the user equipment.
    [0005] According to a second aspect of the invention, an apparatus is provided for informing a status report message of an uplink buffer in a user equipment configured with a plurality of component carriers, the apparatus including: a first device obtaining configured to obtain an amount of data to be transmitted after respective access media layer protocol data units corresponding to the respective component carriers are generated; a generating device configured to generate the uplink buffer status report message according to the amount of data to be transmitted; and an information device configured to inform the buffer status report message to a base station servicing the user equipment.
    [0006] The invention deals with the problem of how to report buffer status information, when there is a plurality of transport blocks, that is, a plurality of data access layer protocol data units, in a transport time interval.
    [0007] With the solution of the present invention, a base station can definitely know how many uplink resources can be allocated to a user equipment to ensure more efficient scheduling.
    [0008] The invention can make use of a buffer fill status report message from different perspectives of reliability, accuracy, efficiency etc., to thereby improve the reliability of the buffer status report message, improve the efficiency of data transmission or improve the accuracy of the buffer status report message g.
    [0009] Preferably, an embodiment of the invention further provides increment information for a table of a buffer size with a coarse granularity to further improve accuracy. Brief Description of Drawings
    [00010] The foregoing and other features, objects and advantages of the invention will become evident from a review of the following detailed description of non-limiting embodiments given with reference to the drawings, in which: Figure 1 illustrates a schematic diagram of the topology of a network according to an embodiment of the invention; Figure 2 illustrates a flowchart of a system method according to an embodiment of the invention; Figure 3 illustrates an example of a long BSR included as a periodic/regular BSR in a MAC PDU according to with an embodiment of the invention; figure 4 and figure 5 illustrate an example of a short BSR corresponding to a group of logical channels with a first priority and a second priority respectively according to an embodiment of the invention; and Figure 6 illustrates a block diagram of an apparatus in accordance with an embodiment of the invention.
    [00011] Identical or similar reference numbers denote identical or similar components throughout all drawings. Detailed description of the modalities
    [00012] Firstly, a brief introduction of the types of BSRs and activation procedures will be made in this description, in order to facilitate the reading and understanding of a technical solution of the invention.
    [00013] The basic idea of scheduling in a base station is that a radio resource is allocated only to one UE or transmission from the UE when there is data available to be transmitted or received. In the downlink, an amount of data to be transmitted for each UE is apparently known to a base station scheduler; but in the uplink direction, a scheduling decision is made in the base station and a data buffer is located in the UE, so it is necessary for the UE to communicate a BSR message to the base station to provide the base station with information of how much data. in the UE total are stored in an uplink buffer area to be transmitted, so that the base station can allocate and schedule a resource according to the buffer information of the uplink resources of the UE to thus avoid a excessive resource is allocated or programmed to the UE, which would otherwise result in a waste of the resource.
    [00014] With two timers configured, including a periodic BSR timer (periodicBSR-Timer) and a regular BSR timer (retxBSR-Timer), and optional logicChannelGroup signaling for each logical channel, the Radio Resource Control (RRC) indicates which Group Logical Channels (LCG), this logical channel belongs.
    [00015] A BSR message can be triggered in the occurrence of the following situations: - there is a logical channel which belongs to a specific logical channel group and which has its uplink data (eg RLC/PDCP control information, data etc.) to be transmitted present in an RLC or PDCP entity; or there is a logical channel which has a higher priority than any logical channel belonging to a specific logical channel group and which has data to be transmitted; or none of the logical channels that belong to a specific logical channel group have any data to be transmitted (that is, a BSR with a buffer area size of 0 is transmitted possibly for buffer area information synchronization between the eNB and the UE), and a BSR triggered in these situations is called a "regular BSR";- an uplink resource has been allocated and the number of padding bits is greater than or equal to a BSR MAC control element plus its subheader, and a BSR fired at this time belongs to a "fill BSR";- the retxBSR timer ends, and any logical channel belonging to a specific group of logical channels has data to be transmitted, and a BSR fired at this time belongs to a "regular BSR"; e- the periodicBSR timer ends, and a BSR triggered at this time belongs to a "Periodic BSR".
    [00016] For regular and periodic BSRs: - a long BSR is informed if more than one Logical Channel Group (LCG) has data to be transmitted in a current TTI where the BSR is transmitted; - otherwise, a short BSR is informed.
    [00017] For a padding BSR:- if the number of padding bits is greater than or equal to a short BSR control element plus its subheader, but less than a long BSR control element plus its subheader, then:- a truncated BSR is reported if more than one Logical Channel Group (LCG) has data to be transmitted in a current TTI where the BSR is transmitted in one, and this BSR carries within a logical channel group to which a logical channel belongs. highest priority with data to be transmitted;- otherwise a short BSR is informed; e- a long BSR will be reported if the number of padding bits is greater than or equal to a long BSR control element plus its subheader.
    [00018] Thus, when transmitting a long BSR, a short BSR or a truncated BSR is determined by the total number of uplink transmission resources valid for transmitting a BSR, how many logical signals exist for buffers that are not empty, and whether one specific event is triggered in the EU. A long BSR reports an amount of buffer data for 4 groups of logical channels and a short BSR reports an amount of uplink buffer data for a group of logical channels.
    [00019] Figure 1 shows a diagram of a network topology according to an embodiment of the invention, where a base station 2 serves a user equipment 1, and user equipment 1 informs a BSR to base station 2.
    [00020] Figure 2 illustrates a flowchart of a system method according to an embodiment of the invention.
    [00021] Firstly in step S20, the user equipment 1 is configured with at least one component carrier, and the user equipment 1 obtains an amount of data to be transmitted after the respective media access layer protocol data units corresponding to the respective component supports are generated. In LTE-A, a plurality of CC's are transmitted at the same time in a TTI, a MAC PDU is encapsulated along a CC, and the CC corresponds one-to-one to the MAC PDU. Thus, a plurality of MAC PDUs can be transmitted simultaneously in a TTI in a CA scenario. A BSR transmitted from user equipment 1 to base station 2 is used to provide base station 2 with an amount of data, in a buffer of an uplink user equipment 1, which is suitable for transmission, particularly an amount of buffered data to be transmitted after all MAC PDUs along their respective component carriers have been created.
    [00022] In addition, a MAC control element buffer state report can include a long BSR format and a short BSR/truncated BSR format.
    [00023] Then, in step S21, the user equipment 1 generates an uplink buffer status report message according to the amount of data to be transmitted. Then, in step S22, user equipment 1 informs the uplink buffer status report message to base station 2 servicing user equipment 1.
    [00024] The S21 step of generation and the S22 step of reporting a BSR in a CA scenario will be described below in detail for a regular/periodic BSR and a filling BSR respectively. Regular/Periodic BSR
    [00025] Since a regular/periodic BSR provides user-specific information rather than CC-specific information, ie the regular/periodic BSR is irrelevant for a CC, it is not necessary to communicate a plurality of BSRs about different CC's in a TTI. Thus, in step S21, user equipment 1 can simply encapsulate only one regular/periodic BSR in a MAC PDU of a CC, even though there are a plurality of MAC PDU's over different CC's in a TTI. In other words, for a regular/periodic BSR, the user equipment reports only one BSR per TTI in a support aggregation scenario.
    [00026] As user equipment 1 determines in which MAC PDU the BSR should be included, it will be described below in one modality.
    [00027] Those skilled in the art will appreciate that data services over at least one logical channel are multiplexed into a MAC PDU, and a different logical channel has a different priority. In order to guarantee a Quality of Service (QoS), power is adjusted by first reducing the transmit power of a signal transmitted over a Physical Uplink Shared Channel (PUSCH) without carrying Uplink Control Information (UCI) ) while maintaining the transmit power of a signal transmitted over a PUSCH transport UCI, where the UCI includes a BSR, a residual power etc., i.e. the PUSCH carrying the UCI has a higher priority than the PUSCH without loading the UCI , that is, the PUSCH carrying a MAC control element has a higher priority. That is, BSR has a higher priority. Thus, the BSR should be included in the same MAC PDU carrying data belonging to the channel with the highest priority, that is, in step S21, the user equipment 1 encapsulates a regular/periodic BSR together with the data of a logical channel, with the highest priority in the same MAC PDU, for example, the user equipment encapsulates a regular/periodic BSR along with the data with the highest QoS requirement, for example, the VoIP service data, within the same MAC PDU and transmits MAC PDU to base station 2. Then, in step S22, user equipment 1 informs MAC PDU, in which regular/periodic BSR is encapsulated, to base station 2. Filler BSR
    [00028] In LTE-A Version 8, a padding BSR will fire if there are enough padding bits to support a short BSR/truncated BSR or a long BSR as described above. In Version 8, only one MAC PDU is transmitted in a TTI, so there is at most one padding BSR consisting of a plurality of padding bits. In a support aggregation scenario, there is a plurality of MAC PDUs, so a plurality of padding BSR's is possible.
    [00029] Currently, there are two workarounds for creating a MAC PDU in a CA scenario, that is, one is to encapsulate MAC PDU's sequentially in a specific order by generating a MAC PDU and then encapsulating at least a portion of the remaining data to be transmitted to a next MAC PDU and so on until the corresponding data is encapsulated in the respective MAC PDU's; and the other is to encapsulate MAC PDU's transmitted over the respective component carriers in parallel. Thus, we will give the following discussion of these two situations of serial and parallel encapsulation, respectively, serial generation of MAC PDU's over respective CC's will be discussed first. (1) MAC PDU's over different CC's are serially encapsulated in a specific order.
    [00030] If a regular/periodic BSR is triggered, then the BSR (long BSR or short BSR) will be transmitted over a CC and additional padding bits in other MAC PDU's of other CC's can be allowed for the transmission of padding BSR's . We will discuss different usage solutions for these filling BSR's.
    [00031] Solution A: A BSR is transmitted repeatedly in padding bits.
    [00032] User equipment 1 has generated an uplink buffer status report message in a MAC PDU corresponding to a component carrier and the user equipment repeatedly places at least part of the status report message content of an uplink buffer in padding bits, i.e. user equipment 1 transmits a copy of an entire regular/periodic BSR or a part thereof as a long BSR or a short/truncated BSR based on padding bits allowed.
    [00033] Step S21 can be divided into several substeps below.
    [00034] First in substep, S210 user equipment 1 obtains a size of the stuffing bits;
    [00035] Then, in substep S211, user equipment 1 repeatedly puts the entire status report message content of an uplink buffer into the defill bits of the other subsequent MAC PDU(s) with defill bits, which is (are) transmitted in the same TTI, when the padding bits are sufficient to include the entire status report message content of an uplink buffer i.e. in the case where the regular/periodic BSR is a Long BSR, the filler BSR is the same as the regular/periodic BSR if the long BSR is supported in the filler bits;
    [00036] Or user equipment 1 places part of the entire contents of the status report message of a buffer of an uplink sequentially into the fill bits of the other subsequent MAC PDU(s) with fill bits, that is ) transmitted in the same TTI, when the padding bits are sufficient to include the status report message content part of an uplink buffer, i.e. the padding BSR includes part of the status information of regular/periodic BSR buffer if the regular/periodic BSR is a long BSR and the padding BSR is a short BSR/truncated BSR, and that part belongs to an LCG with a higher priority. This principle is also applicable to a scenario where there is only one filling BSR when no regular/periodic BSR is triggered. A stream where a regular/periodic BSR and then a filler BSR are generated when MAC PDU's are sequentially generated in a CA scenario will be described in detail below with reference to figure 3, figure 4 and figure 5.
    [00037] For example, there are three MAC PDU's to be transmitted in a TTI. When a regular/periodic BSR is triggered, User 1 equipment will transmit the regular/periodic BSR in a MAC PDU. In a preferred embodiment, the regular/periodic BSR is encapsulated in a MAC PDU for transmission at step S21, e.g., the BSR is encapsulated in a serial data packet which is the first to be generated, and a filler BSR is supported on both of the remaining two MAC PDU's.
    [00038] In one embodiment, the buffer state information, ie a BSR, of four Logical Channel Groups (LCG's) will be communicated, and a long BSR as illustrated in figure 3 is included as a regular/periodic BSR on a MAC PDU. Thus, step S21 can be further divided into substeps S210, S211 and S211' below. In substep S210, user equipment 1 obtains the padding bit size of the next serial MAC PDU and determines whether the padding bit size of the next serial MAC PDU is sufficient to include the entire content of the regular/periodic BSR, and when the padding bits are sufficient to include the entire content of the regular/periodic BSR, then in substep S211, user equipment 1 fills the entire content of the regular/periodic BSR into the padding bits; or if the padding bits are not enough to contain the entire content of the regular/periodic BSR, for example, the padding bit size can only support one BSR, short, then in substep S211', the user equipment 1 fills part of the regular/periodic BSR content into the padding bits of the next serial MAC PDU. According to a preferred embodiment, in substep S211', user equipment 1 first fills in BSR information corresponding to the logical channel group with the highest priority in the fill bits of the next MAC serial PDU and then fills in BSR information corresponding to the group of logical channels with the second highest priority in bits of stuffing an additional MAC PDU according to a priority order of logical channel groups corresponding to the BSR, and substep S211' will be described in detail with reference to Fig. 3, Fig. 4 and figure 5.
    [00039] In Figure 3, a long BSR is adopted as the regular/periodic BSR to report buffer state information of the four logical channel groups, respectively, that is, the corresponding amounts of data to be transmitted over the four groups of logical channels, which is information about the uplink buffer state of a Logical Channel Group (LCG) # 0, information about the uplink buffer state of a logical channel group #1, information about the buffer state of the uplink of a group of logical channels #2 and information about the buffer status of the uplink of a group of logical channels #3 respectively. In an existing protocol architecture, 6 bits are respectively occupied for the uplink buffer state information of each logical channel group, where logical channel group #0 has a higher priority than logical channel group #1, logical channel group #1 has a higher priority than logical channel group #2, and logical channel group #2 has a higher priority than logical channel group #3. two subsequent MAC PDU's only support one short BSR, then user equipment 1 first populates the logical channel group with the first priority, ie the logical channel group #0, as a short BSR in the next MAC PDU the MAC PDU in which the long BSR and the regular/periodic BSR are encapsulated, as illustrated in figure 4; and populates the logical channel group with the second priority, that is, logical channel group #1, as a short BSR in the MAC PDU next to the other MAC PDU, as illustrated in Figure 5. Also, in step S22, the User equipment 1 transmits the short BSR to the LCG with the first priority, as illustrated in figure 4, and the short BSR to the LCG with the second priority, as illustrated in figure 5, respectively in the two MAC PDU's.
    [00040] In another embodiment, if one padding BSR can support a long BSR and the other padding BSR can only support a short BSR, then the long BSR as illustrated in figure 3 will be included in a MAC PDU supporting a long BSR and the short BSR for the LCG with the first LCG as illustrated in figure 4 will be included in one MAC PDU supporting a long BSR and the short BSR for the LCG with the first LCG as illustrated in figure 4 will be included in the other MAC PDU supporting a Short BSR.
    [00041] In summary, a copy of a total periodic/regular BSR or a part thereof can be transmitted in padding bits to improve transmission reliability.
    [00042] Solution B: when user equipment 1 encapsulates MAC PDU's serially in sequence, a regular/periodic BSR was originally programmed to be transmitted in the nth MAC PDU in a TTI, where n<N, and N represent the total number of MAC PDU's transmitted in a TTI, which is the last to be encapsulated. Thus, step S21 may further include at least a portion of the BSR in the stuffing bits of one or more encapsulated MAC PDUs before the nth MAC PDU. Then user equipment 1 determines whether the whole regular/periodic BSR or part thereof has been included in the padding bits of at least one encapsulated MAC PDU before the nth MAC PDU.
    [00043] If at least one previously encapsulated MAC PDU has included the entire BSR to be reported, for example, user equipment 1 has included buffer status information in the regular/periodic BSR within one or more padding bits MAC PDU encapsulated before the nth MAC PDU, so the regular/periodic BSR may not be included in the nth MAC PDU, and thus, one byte(s) in the nth MAC PDU that was (were) originally programmed to load into it the BSR, may be reserved for data content encapsulation.
    [00044] If no BSR or only a portion of the buffer state information is included in a previously encapsulated MAC PDU, then User Equipment 1 includes the remaining BSR information in the nth encapsulated MAC PDU. Specifically, if BSR information of more than two LCG's is not included in a MAC PDU, then user equipment 1 transmits in a long BSR the buffer information of the plurality of LCG's in the nth MAC PDU, and if the BSR information of only one LCG is not included in a MAC PDU, then user equipment 1 will include a short BSR in the nth MAC PDU. Preferably, when part of the BSR content, for example, LCG buffer size information #0, LCG buffer size information #1 and LCG buffer size information #2, have been included in bits of filling at least one MAC PDU preceding the nth MAC PDU, then user equipment 1 can simply include only in a short BSR or a truncated BSR, LCG #3 buffer size information in the nth MAC PDU, and the data from service can be transmitted in reserved bits.
    [00045] In summary, the preceding solutions A and B encapsulate MAC PDU's from perspectives of reliability and efficiency, respectively. Solution A transmits a BSR repeatedly on a plurality of MAC PDU's and can improve transmission reliability due to the plurality of transmissions. The solution can improve transmission efficiency as it makes use of padding bits and more data can be transmitted in reserved bits.(2) All MAC PDUs are encapsulated in parallel in a TTI.
    [00046] In this situation, all MAC PDU's are encapsulated in parallel and user equipment 1 encapsulating a MAC PDU does not know if there are padding bits in the other MAC PDU's, so only solution A introduced for serial encapsulation of MAC PDU's can be applied to padding bits, i.e. a copy of a full regular/periodic BSR or a part thereof can be transmitted in a padding BSR to thereby improve transmission reliability.(3) BSR mapping table
    [00047] In addition, padding bits can further provide increment information for a BSR mapping table with a coarse granularity to thereby improve the accuracy of the BSR mapping table.
    [00048] A buffer size table, ie table 1, defines the level of largest buffer size determined by an uplink peak rate multiplied by a desired response time. However, the buffer table may fail to support accurate reporting of buffer status information due to an increase in peak rate resulting from the introduction of bearer aggregation and MIMO uplink. In order to ensure an unchanged 6-bit buffer state, one solution is to increase this maximum value with a coarse granularity, that is, there is an increased difference between adjacently indexed buffer sizes to accommodate a total buffer size increasing with an increasing peak rate. For the solution with a coarse grain table, the invention proposes the following improved solution: both a filling BSR and a regular/periodic BSR are used together to thereby provide more accurate BSR information. In addition, an R (reserved) bit in a MAC subheader can be used to distinguish between the original BSR information and the increment information.
    [00049] For example, two MAC PDU's are transmitted in a TTI. A regular/periodic BSR is triggered and will be transmitted on one MAC PDU and a filler BSR is supported on the other remaining MAC PDU. In one mode, there is only one LCG and the actual buffer amount is 111148 bytes, so a periodic/regular BSR reporting index will be 61 (109439 <buffer state111148<=128125) according to table 1. Also, the padding BSR reports the index of 1709 (1709=111148-109439) as 34 (1552 <buffer state 1709 <= 1817), and an R bit in a MAC subhead where the padding BSR is located is placed, for example, to 1 indicating that 1709 is an increment. Thus, more accurate uplink buffer size information can be provided when increment information is reported in the padding BSR.
    [00050] In another embodiment, more accurate information can be provided in a multi-level incremental manner. A description will be given taking as an example a situation where three MAC PDU's are transmitted in a TTI, regular periodic BSR is triggered and will be transmitted in a MAC PDU, and there is only one LCG and the actual buffer amount is 111148 bytes, and a padding BSR is supported on both of the other two MAC PDU's. Those skilled in the art can appreciate that 4 fields, ie, R/R/E/LCID respectively, are included in a subheader of a MAC PDU, and, for example, the first bit R can be defined as an identifier of a first level of increment and the second bit R can be set as an identifier of a second level of increment. Then a first MAC PDU filler BSR is indexed 61, a second MAC PDU filler BSR is indexed 34 (1709=111148-109439) and a third MAC PDU filler BSR is indexed 157 (157=1709-1552) is indexed 19.
    [00051] The respective preceding steps were described from the perspective of a transmitter, ie, user equipment 1. A brief description will be given below from the perspective of base station 2, ie, a receiver, and the station base 2 receives a MAC PDU from user equipment 1, and then base station 2 extracts a BSR message from the MAC PDU, where a BSR is encapsulated according to how the MAC PDU is encapsulated to do so. allocate and schedule an uplink resource for user equipment 1.
    [00052] Figure 6 illustrates a block diagram of an apparatus according to an embodiment of the invention, where the apparatus 10 is allocated in the user equipment illustrated in Figure 1. The apparatus 10 includes a first obtaining device 100, a device generation 101 and a communication device 102. In one embodiment, the user equipment is configured with a plurality of component carriers.
    [00053] First, the first obtaining device 100 is configured to obtain an amount of data to be transmitted after the respective access media layer protocol data units corresponding to the respective component carriers are generated; then the generating device 101 is configured to generate the uplink buffer status report message according to the amount of data to be transmitted; and then, the communication device 102 is configured to report the uplink buffer status report message to base station 2.
    [00054] In one embodiment, the communication device 102 is further configured to transmit the uplink buffer status report message to the base station serving user equipment over one of at least one of the component carriers.
    [00055] In one embodiment, the respective access media layer protocol data units corresponding to the logical channels with different priorities and the generating device 101 are further configured to encapsulate the uplink buffer status report message and the data corresponding to the highest priority logical channel of the access media layer protocol data unit, and the communication device 102 is further configured to transmit access media layer protocol data unit, in which the report message uplink buffer state is encapsulated, for base station 2 servicing user equipment 1.

    [00056] In one embodiment, the generator unit 101 is further configured to generate the uplink buffer status report message in a first media access layer protocol data unit and to repeatedly fill in at least part of the content of the Uplink buffer status report message in padding bits of at least one other media access layer protocol data unit with padding bits.
    [00057] Then the transmission device 102 is further configured to communicate the uplink buffer status report message to base station 2 about the first component carrier and to report at least part of the contents of the buffer status report message of the uplink to base station 2 on the at least one other component carrier in the meantime.
    [00058] For example, the generator 101 further includes: a second obtaining device configured to obtain a size of the stuffing bits; and the generator device 101 is further configured to repeatedly fill the entire contents of the uplink buffer status report message in the pad bits of at least one other media access layer protocol data unit with the pad bits, when the padding bits are sufficient to include the entire content of the uplink buffer status report message; otherwise, the generating device 101 is still configured to repeatedly pad a portion of the content of the buffer status report message. uplink in the pad bits of at least one other media access layer protocol data unit with the pad bits.
    [00059] In another embodiment, when the media access layer protocol data units on the respective component carriers are serially generated and the uplink buffer status report message was originally programmed to be transmitted over a first media access layer protocol data unit on a component carrier, the generating device 101 is further configured to include at least a portion of the uplink buffer status report message in bit filler. minus one preceding media access layer protocol data unit, which is encapsulated before the first access media layer protocol data unit, and thus the apparatus 10 further includes: a determination device (not illustrated) configured to determine whether the entire uplink buffer status report message or a portion of the uplink status report message uplink buffer is included in the stuffing bits of at least one preceding access media layer protocol data unit; and the generating device 101 is further configured:- to encapsulate the data content in a part of the first access media layer protocol data unit which was originally programmed to transmit the status report message the uplink buffer when the entire uplink buffer status report message is included in the padding bits of at least a first media access layer protocol data unit; or- to encapsulate the remaining uplink buffer status report message in the first media access layer protocol data unit and encapsulate the data content in a reserved portion when the buffer status report message portion of the uplink is included in the stuffing bits of at least a first media access layer protocol data unit.
    [00060] Furthermore, in another embodiment, the generating device 101 is further configured:- to generate a regular or periodic uplink buffer status report message and the fill uplink buffer status report message respectively according to the amount of data to be transmitted, wherein the regular or periodic uplink buffer status report message is used to represent a first range of values in which the amount of data to be transmitted is located and the The filling uplink buffer status report message is used to represent a second range of values in which a difference between the amount of data to be transmitted and a lower limit of the first range of values is located.
    [00061] It should be noted that the above embodiments are illustrative but not limiting of the invention. All technical solutions, without departing from the spirit of the invention, fall within the scope of the invention and these include the use of different technical resources that appear in different modes, as well as possible combinations of programming methods to achieve an advantageous effect. Furthermore, any reference numbers in the claims are not to be construed as limiting the scope of the claims in question; the term "comprising" does not exclude a device(s) or step(s) that is (or is not) listed in other claim(s) or description; "a/an" preceding a device does not exclude the presence of a plurality of such devices; one or more functions of a plurality of devices included in an apparatus can be performed by the same hardware or software module; and the terms "first", "second", etc., are simply intended to designate a name, but not to represent any specific order.
    权利要求:
    Claims (13)
    [0001]
    1. Method of informing a report message of the status of an uplink buffer in a user equipment configured with a plurality of component carriers, the method characterized in that it comprises the steps of:A. obtaining a quantity (S20) of data to be transmitted after the respective access media layer protocol data units corresponding to the respective component carriers are generated;B. generating (S21) the uplink buffer status report message according to the amount of data to be transmitted wherein the uplink buffer status report message comprises an uplink buffer status report message regular or periodic and a filling uplink buffer status report message respectively according to the amount of data to be transmitted, wherein the regular or periodic uplink buffer status report message is used to represent a first range of values in which the amount of data to be transmitted is located, and the filling uplink buffer status report message is used to represent a second range of values in which a difference between the amount of data to be transmitted and a lower boundary of the first range of values is located; eC. information from the uplink buffer status report message to the base station servicing the user equipment.
    [0002]
    2. Method according to claim 1, characterized in that step C further comprises: - transmitting (S22) the uplink buffer status report message to the base station servicing the user equipment over one of the plurality of component carriers.
    [0003]
    3. Method according to claim 2, characterized in that the respective media access layer protocol data units correspond to logical channels with different priorities and step B further comprises:- encapsulation of the reporting message uplink buffer state and data corresponding to the highest priority logical channel in a media access layer protocol data unit; and step C further comprises:- transmitting the media access layer protocol data unit, in which the uplink buffer status report message is encapsulated to the base station servicing the user equipment.
    [0004]
    4. The method of claim 1, characterized in that step B further comprises: placing the uplink buffer status report message into a first media access layer protocol data unit and placing repeatedly at least part of the content of the uplink buffer status report message in padding bits of at least one other media access layer protocol data unit with the padding bits; and step C further comprises: communicating uplink buffer status report message to the base station on a first component carrier corresponding to the first access media layer protocol data unit and reporting at least part of the contents of the uplink buffer status report message to base station on at least one other component carrier corresponding to at least one other media access layer protocol data unit in the meantime.
    [0005]
    5. Method according to claim 4, characterized in that the step of placing repeatedly further comprises: I. obtaining the size of the filler bits; eII. repeatedly placing the entire content of the uplink buffer status report message into the pad bits of at least one other media access layer protocol data unit with the pad bits when the pad bits are sufficient to include the entire contents of the uplink buffer status report message;II'. otherwise, repeatedly placing a portion of the uplink buffer status report message content in the pad bits of at least one other media access layer protocol data unit with the pad bits.
    [0006]
    6. Method according to claim 5, characterized in that the uplink buffer status report message includes the respective uplink buffer status information of logical channel groups with different priorities, and the step II' further comprises:- stuffing the corresponding uplink buffer status information according to the priorities of logical channel groups when uplink buffer status report message is repeatedly placed in the stuffing bits of at least one another unit of media access layer protocol data with the padding bits.
    [0007]
    7. Method according to claim 1, characterized in that when the media access layer protocol data units on the respective component carriers are generated in series and the link buffer status report message was originally programmed to be transmitted over a second media access layer protocol data unit on a component carrier, step B further comprises: including at least a part of the link buffer status report message ascending in padding bits of at least one preceding media access layer protocol data unit which is encapsulated before the second access media layer protocol data unit; and then step B, the method further comprises:- determining whether the entire uplink buffer status report message or a part of the uplink buffer status report message is included in the padding bits of at least a preceding media access layer protocol data unit; and - encapsulating the data content in a part of the second access media layer protocol data unit, which was originally programmed to transmit the uplink buffer status report message when the entire status report message of uplink buffer is included in the padding bits of at least one preceding access media layer protocol data unit; or - encapsulating the remaining uplink buffer status report message in the second media access layer protocol data unit and encapsulating the data content in a reserved portion when the buffer status reporting message portion of the uplink is included in the padding bits of at least one preceding access media layer protocol data unit.
    [0008]
    8. Apparatus (10) for informing a status report message of an uplink buffer in a user equipment configured with a plurality of component carriers, the apparatus characterized in that it comprises the steps of: a first obtaining device (100) configured to obtain the amount of data to be transmitted after respective access media layer protocol data units corresponding to the respective component carriers are generated; a generating device (101) configured to generate the reporting message uplink buffer state according to the amount of data to be transmitted; and an information device (102) configured to inform the uplink buffer status report message to the base station servicing the user equipment; and wherein the uplink buffer status report message comprises a regular or periodic uplink buffer status report message and a fill uplink buffer status report message respectively according to the amount of data to be transmitted, wherein the regular or periodic uplink buffer status report message is used to represent a first range of values in which the amount of data to be transmitted is located, and the status report message. uplink padding buffer is used to represent a second range of values in which a difference between the amount of data to be transmitted and a lower limit of the first range of values is located.
    [0009]
    9. Apparatus (10) according to claim 8, characterized in that the information device is further configured to:- transmit the uplink buffer status report message to the base station servicing the user equipment on one of the plurality of component carriers.
    [0010]
    10. Apparatus according to claim 9, characterized in that the respective media access layer protocol data units correspond to logical channels with different priorities and the generating device is additionally configured:- to encapsulate the message reporting uplink buffer status and data corresponding to the highest priority logical channel in a media access layer protocol data unit; and the information device (102) is further configured:- to transmit the access media layer protocol data unit, in which the uplink buffer status report message is encapsulated to the base station servicing the reporting equipment. user.
    [0011]
    11. Apparatus, according to claim 8, characterized in that the generation unit (101) is further configured to: generate the uplink buffer status report message in a first data unit of the data layer protocol. means of access; and repeatedly filling at least part of the content of the uplink buffer status report message in stuffer bits of at least one other media access layer protocol data unit with the stuffer bits; and the information device (102) is further configured: to communicate the uplink buffer status report message to the base station over a first component carrier corresponding to the first media access layer protocol data unit; and informing at least part of the content of the uplink buffer status report message to the base station about at least one other component carrier corresponding to at least one other media access layer protocol data unit in the meantime.
    [0012]
    12. Apparatus according to claim 11, characterized in that the generating device (101) further comprises: a second obtaining device configured to obtain a size of the stuffing bits; and the generating device (101) is further configured to repeatedly fill the entire content of the uplink buffer status report message in the stuffing bits of at least one other media access layer protocol data unit with the bits. padding, when the padding bits are sufficient to include the entire content of the uplink buffer status report message; otherwise, the generating device (101) is still configured to repeatedly pad a portion of the content of the uplink message. reporting of uplink buffer status in the padding bits of at least one other media access layer protocol data unit with the padding bits.
    [0013]
    13. Apparatus (10) according to claim 8, characterized in that when the media layer protocol data units on the respective component carriers are generated serially and the status report message The uplink buffer was originally programmed to be transmitted over a first unit of access media layer protocol data on a component carrier, the generating device (101) is further configured: to include at least a portion of the uplink buffer status report message in bits filling at least one preceding access media layer protocol data unit which is encapsulated before the second access media layer protocol data unit; and the apparatus (10) further comprises: a determining device configured to determine whether the entire uplink buffer status report message or a part of the uplink buffer status report message is included in the padding bits. at least one preceding access media layer protocol data unit; and the generating device (101) is further configured:- to encapsulate data contents in a part of the second media access layer protocol data unit, which was originally programmed to transmit the buffer status report message of the uplink when the entire uplink buffer status report message is included in the padding bits of at least one preceding access media layer protocol data unit; or- to encapsulate the remaining uplink buffer status report message in the second media access layer protocol data unit and encapsulate the data content in a reserved portion when the buffer status report message portion of the uplink is included in the stuffing bits of at least one preceding access media layer protocol data unit.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112012028070B1|2021-06-01|METHOD AND APPARATUS FOR TRANSMISSION OF BUFFER STATUS REPORT ON THE WIRELESS NETWORK
    JP5875581B2|2016-03-02|Method and device for delivery of BSR information to support efficient scheduling
    US20200382993A1|2020-12-03|Method of transmitting data, user equipment, network side device and computer readable storage medium
    KR20200097826A|2020-08-19|Pucch-based uplink control information transmission method and apparatus
    BRPI1007702B1|2021-06-15|METHOD FOR REPORTING A BUFFER STATUS REPORT, NETWORK SYSTEM FOR REPORTING A BUFFER STATUS REPORT | AND TERMINAL FOR REPORTING A BUFFER STATUS REPORT |
    ES2797559T3|2020-12-02|Uplink resource allocation in a mobile communication system
    EP3605936B1|2021-05-05|Methods and arrangements in a telecommunications system
    KR101435844B1|2014-08-29|Method of transmitting a data block in a wireless communication system
    BRPI1006366B1|2021-04-20|method for mobile terminal and mobile terminal
    EP2506629A1|2012-10-03|Method and system for realizing buffer status reporting
    KR20190132431A|2019-11-27|RRCIO RESOURCE CONTROL | messages for enhanced scheduling requests
    BRPI0806906A2|2014-04-29|WIRELESS COMMUNICATION RESOURCE METHOD
    BRPI0621815B1|2019-10-29|method for reporting scheduling information processed on user equipment of a wireless communication system, and user equipment on a wireless communication system
    US20090104916A1|2009-04-23|Method, apparatus and system for signalling ofbuffer status information
    CN107431605B|2021-10-29|Method and apparatus for transmitting and receiving control data in wireless communication network
    BR112019008688A2|2019-09-17|resource allocation method, terminal, device, and system
    US11101935B2|2021-08-24|Apparatus and method for transmitting packet data units
    同族专利:
    公开号 | 公开日
    CN102783234B|2015-11-25|
    EP2568759B1|2016-09-28|
    US20130114445A1|2013-05-09|
    CN102783234A|2012-11-14|
    JP5788971B2|2015-10-07|
    US9369904B2|2016-06-14|
    WO2011137576A1|2011-11-10|
    JP2013526223A|2013-06-20|
    KR20130014586A|2013-02-07|
    KR101411344B1|2014-06-25|
    EP2568759A4|2015-07-01|
    EP2568759A1|2013-03-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5239545A|1990-11-05|1993-08-24|Motorola, Inc.|Channel access control in a communication system|
    US6574795B1|1999-05-28|2003-06-03|Intel Corporation|Reliable communication of data by supplementing a unidirectional communications protocol|
    JP4475835B2|2001-03-05|2010-06-09|富士通株式会社|Input line interface device and packet communication device|
    US8385188B2|2002-10-29|2013-02-26|Broadcom Corporation|Multi-port, gigabit serdes transceiver capable of automatic fail switchover|
    WO2004114610A1|2003-06-18|2004-12-29|Nippon Telegraph And Telephone Corporation|Radio packet communication method|
    US8189615B2|2004-12-23|2012-05-29|Nokia Corporation|Method and apparatus for communicating scheduling information from a UE to a radio access network|
    US8458280B2|2005-04-08|2013-06-04|Intel-Ne, Inc.|Apparatus and method for packet transmission over a high speed network supporting remote direct memory access operations|
    JP4673144B2|2005-06-23|2011-04-20|キヤノン株式会社|Method for controlling light emitting part of liquid container and printer|
    CN101132220B|2006-08-22|2011-11-30|上海贝尔阿尔卡特股份有限公司|Method and device for reporting ascending scheduling request or emergency in wireless network|
    KR101125846B1|2007-03-23|2012-03-28|삼성전자주식회사|Method for transmitting image frame data based on packet system and apparatus thereof|
    KR101336222B1|2007-08-10|2013-12-05|삼성전자주식회사|Apparatus and method for scheduling under consideration of the service connection time duration in mobile communication system|
    US8165066B2|2008-01-03|2012-04-24|Innovative Sonic Limited|Method and apparatus for performing buffer status reporting|
    EP3145240B1|2008-02-20|2019-04-10|Amazon Technologies, Inc.|Method and apparatus for processing padding buffer status reports|
    CN101547435B|2008-03-25|2010-12-08|大唐移动通信设备有限公司|Method and device for reporting cached state|
    US8271842B2|2008-06-13|2012-09-18|Qualcomm Incorporated|Reducing harq retransmissions using peak power management techniques|
    US8861449B2|2008-11-21|2014-10-14|Telefonaktiebolaget L M Ericsson |Transmission method and devices in a communication system with contention-based data transmission|
    EP2237633A1|2009-04-03|2010-10-06|Panasonic Corporation|Buffer status reporting in a mobile communication system|
    US8638815B2|2010-01-08|2014-01-28|Blackberry Limited|Method and apparatus for logical channel prioritization for uplink carrier aggregation|US9924412B2|2010-06-18|2018-03-20|Acer Incorporated|Method of handling buffer status report and communication device thereof|
    EP2813118A4|2012-02-07|2015-09-30|Nokia Technologies Oy|Method and apparatus to report and handle buffer status for user equipment working in inter-site carrier aggregation mode|
    CN103687037B|2012-09-12|2017-04-12|华为技术有限公司|Resource scheduling method, equipment and communication system|
    CN103796168B|2012-10-31|2018-04-27|中兴通讯股份有限公司|A kind of method for realizing group service, the node B of evolution and terminal|
    US9264930B2|2012-11-07|2016-02-16|Qualcomm Incorporated|Buffer status reporting and logical channel prioritization in multiflow operation|
    CN104919846A|2013-01-11|2015-09-16|Lg电子株式会社|Method for reporting buffer status and communication device thereof|
    EP2958387B1|2013-03-12|2017-08-16|Huawei Technologies Co., Ltd.|Data transmission processing method and device|
    EP3223470B1|2013-04-05|2018-09-26|Alcatel Lucent|Dual connectivity network|
    WO2014180351A1|2013-05-10|2014-11-13|Mediatek Singapore Pte. Ltd.|Enhanced mechanism of scheduling request to multiple schedulers in a wireless network with inter base station carrier aggregation|
    US10892879B2|2013-05-10|2021-01-12|Hfi Innovation Inc.|Enhanced mechanism of scheduling request to multiple schedulers in a wireless network with multiple connectivity|
    US20150009874A1|2013-07-08|2015-01-08|Amazon Technologies, Inc.|Techniques for optimizing propagation of multiple types of data|
    KR102340232B1|2013-09-26|2021-12-16|엘지전자 주식회사|Method for triggering and reporting a buffer status and device therefor|
    EP2854444A1|2013-09-27|2015-04-01|Panasonic Intellectual Property Corporation of America|Efficient uplink scheduling mechanism for dual connectivity|
    CN105264930B|2013-10-31|2019-01-18|华为技术有限公司|Sending node and its reporting cached state method|
    CN104735791B|2013-12-23|2018-09-11|中国电信股份有限公司|A kind of user cache state method for reporting and system|
    US9635655B2|2014-02-24|2017-04-25|Intel Corporation|Enhancement to the buffer status report for coordinated uplink grant allocation in dual connectivity in an LTE network|
    EP3244680B1|2015-01-29|2019-12-04|Huawei Technologies Co., Ltd.|Data transmission method and device|
    WO2016159528A1|2015-03-30|2016-10-06|Lg Electronics Inc.|Method for performing a buffer status reporting in a wireless communication system and device therefor|
    EP3298822B1|2015-05-22|2022-03-09|LG Electronics Inc.|Method for triggering a buffer status reporting in a wireless communication system and a device therefor|
    CN106412794B|2015-07-21|2020-01-07|电信科学技术研究院|Resource allocation method and equipment|
    CN106470445A|2015-08-21|2017-03-01|中兴通讯股份有限公司|Buffer status report generation method and device|
    KR101937195B1|2016-11-11|2019-01-10|이문수|Digital wireless broadcasting system based on bi-directional communication|
    KR20190120402A|2017-03-13|2019-10-23|삼성전자주식회사|User Equipment and Method for Managing Buffer Status Reporting for Multiple Numerology Operations|
    US10873911B2|2017-03-23|2020-12-22|Ofinno, LCC|Uplink transmission power adjustment|
    CN107223360B|2017-04-28|2021-10-08|北京小米移动软件有限公司|Method and device for sending cache state|
    US11026116B2|2017-05-04|2021-06-01|Lg Electronics Inc.|Apparatus and method for generating a buffer status report|
    US10511994B2|2017-06-15|2019-12-17|Kt Corporation|Methods for configuring buffer status report for next-generation mobile communication and apparatuses thereof|
    CN110800369A|2017-09-21|2020-02-14|Oppo广东移动通信有限公司|Method and device for transmitting information|
    WO2019140558A1|2018-01-16|2019-07-25|Oppo广东移动通信有限公司|Method for reporting data amount of data replication, user device, and network device|
    CN110139389B|2018-02-09|2021-05-11|电信科学技术研究院有限公司|Method and device for reporting buffer status and computer storage medium|
    CN113973383A|2018-02-13|2022-01-25|华为技术有限公司|Information processing method and device|
    EP3777416A4|2018-04-04|2021-12-15|LenovoLimited|Buffer status report for packet duplication|
    US10869334B2|2018-06-19|2020-12-15|Google Llc|Reporting buffer status in wireless communication systems|
    KR20200017780A|2018-08-09|2020-02-19|삼성전자주식회사|Apparatus and method for uplink data report and control channel synchronization in wireless communication system|
    CN112153746A|2019-06-28|2020-12-29|华为技术有限公司|Communication method and device|
    法律状态:
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-01-14| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04W 72/12 , H04W 72/10 , H04W 28/14 Ipc: H04L 5/00 (1968.09), H04W 72/12 (2009.01) |
    2020-01-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-01| 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 03/05/2010, OBSERVADAS AS CONDICOES LEGAIS. PATENTE CONCEDIDA CONFORME ADI 5.529/DF |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/CN2010/072401|WO2011137576A1|2010-05-03|2010-05-03|Method and device for sending buffer status report in wireless network|
    [返回顶部]