CN104661315B - Method for reporting buffer status report and user equipment - Google Patents
Method for reporting buffer status report and user equipment Download PDFInfo
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- CN104661315B CN104661315B CN201310603948.1A CN201310603948A CN104661315B CN 104661315 B CN104661315 B CN 104661315B CN 201310603948 A CN201310603948 A CN 201310603948A CN 104661315 B CN104661315 B CN 104661315B
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Abstract
The invention discloses a method and user equipment for reporting a buffer status report, wherein the method comprises the following steps: after receiving the authorization information, the UE analyzes the authorization information of the main cell and the authorization information of the auxiliary cell; sequencing the authorization information of the primary cell and the authorization information of the secondary cell, arranging the authorization information of the primary cell at the end, and finally establishing a Buffer Status Report (BSR) sent on a primary carrier; and when the frame is reported, the BSR is preferentially sent in the main carrier.
Description
Technical Field
The present invention relates to data reporting technologies, and in particular, to a method and a User Equipment (UE) for reporting a Buffer Status Report (BSR).
Background
The invention relates to a scene of reporting BSR cells by UE under a carrier aggregation technology. The BSR cell is used to inform the base station side of the uplink resources required by the UE, so that the base station can perform reasonable resource scheduling. Therefore, the importance of the BSR cell is very high, and it is determined whether the UE can timely and accurately acquire resource allocation on the base station side.
In the process of implementing the technical solution of the embodiment of the present application, the inventor of the present application finds at least the following technical problems in the prior art:
under the carrier aggregation technology, a UE in one Transmission Time Interval (TTI) needs to construct a Medium Access Control (MAC) Protocol Data Unit (PDU) on 5 Transport Blocks (TBs) at most, which has a high requirement on the performance of the UE. If the MAC packet packing efficiency is low, the uplink resource utilization rate scheduled by the base station side is low; if the BSR report is not reasonable, the uplink resource scheduling at the base station side is not timely enough. Therefore, it is very important to report BSR cells to the base station side accurately, in real time, and reasonably, and the BSR cell construction scheme in the prior art is very complex, so that the real-time requirement cannot be met.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a user equipment for reporting a BSR, which reduce the complexity of constructing BSR cells and can meet the requirement of real-time performance.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method of reporting a buffer status report, the method comprising:
after receiving the authorization information, the UE analyzes the authorization information of the main cell and the authorization information of the auxiliary cell;
sequencing the authorization information of the primary cell and the authorization information of the secondary cell, arranging the authorization information of the primary cell at the end, and finally establishing a Buffer Status Report (BSR) sent on a primary carrier;
and when the frame is reported, the BSR is preferentially sent in the main carrier.
Preferably, the method further comprises: in the framing process, if the frame reporting trigger condition of the BSR is met and the BSR needs to be sent in the current transmission time interval TTI, the BSR is encapsulated in the last transport block TB.
Preferably, the TB is specifically: a medium access control protocol data unit, MAC PDU, carrying a radio link control layer protocol data unit, RLC PDU.
Preferably, the method further comprises: in the framing process, if the authorization information is larger than service data to be sent and part of TB has no RLC PDU data load and needs to be sent, determining the type of the BSR as a piggyback buffer status report (PADDING BSR) according to the size of the authorization information, and encapsulating the PADDING BSR in the part of TB which has no RLC PDU data load and needs to be sent.
A user equipment, the user equipment comprising:
the analysis unit is used for analyzing the main cell authorization information and the auxiliary cell authorization information in the authorization information after the UE receives the authorization information;
a framing unit, configured to rank the primary cell authorization information and the secondary cell authorization information, rank the primary cell authorization information at the end, and finally construct a buffer status report BSR sent on a primary carrier;
and the reporting unit is used for preferentially sending the BSR in the main carrier during the frame-forming reporting.
Preferably, the framing unit is further configured to encapsulate the BSR in the last transport block TB in the framing process if the BSR needs to be sent in the transmission time interval TTI if the frame reporting trigger condition of the BSR is met.
Preferably, the TB is specifically: a medium access control protocol data unit, MAC PDU, carrying a radio link control layer protocol data unit, RLC PDU.
Preferably, the framing unit is further configured to, in the framing process, if the authorization information > service data to be sent and there is a part of TBs that do not have RLC PDU data load and need to be sent, determine the type of BSR as a piggyback buffer status report PADDING BSR according to the size of the authorization information, and encapsulate the PADDING BSR in the part of TBs that do not have RLC PDU data load and need to be sent.
The method for reporting the buffer status report comprises the following steps: after receiving the authorization information, the UE analyzes the authorization information of the main cell and the authorization information of the auxiliary cell; sequencing the authorization information of the primary cell and the authorization information of the secondary cell, arranging the authorization information of the primary cell at the end, and finally establishing a Buffer Status Report (BSR) sent on a primary carrier; and when the frame is reported, the BSR is preferentially sent in the main carrier. By adopting the invention, because the BSR is controlled to be preferentially sent on the main carrier by sequencing the authorization information and then framing, and after the network side receives the frame, because the entity of the data link layer (L2) on the physical layer of the corresponding UE on the network side is stored in the main cell, the frame sent by the main carrier can be directly processed, random sending is avoided, and if the frame is sent on the auxiliary carrier, the frame is finally transmitted to the main cell from the auxiliary cell through the optical fiber to be processed, thereby reducing the framing complexity and meeting the requirement of real-time property by adopting the embodiment of the invention.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the method of the present invention;
FIG. 2 is a schematic diagram of the structure of the apparatus according to the present invention;
fig. 3 is a schematic view of an application scenario to which the embodiment of the present invention is applied.
Detailed Description
The following describes the embodiments in further detail with reference to the accompanying drawings.
The embodiment of the invention relates to a scene that UE reports BSR cells under a carrier aggregation technology, but is not limited to the scene. The carrier aggregation technology provides the UE with higher data bandwidth, the carrier aggregation technology is provided for the UE in one TTI, at most 5 TBs are used for transmission, and the UE can only have one TB for transmission without using the carrier aggregation technology. The BSR cell carries an uplink buffer status of the UE, i.e., the size of uplink data to be transmitted, and is constructed by an MAC module, i.e., an MAC PDU, of the UE, and then reports the BSR. At present, the information carried by the BSR cell must be the buffer state after all TB packets, and the BSR is complex to construct.
The UE side reports the BSR to the network layer, and since a data link layer (L2) entity above a physical layer corresponding to the UE on the network side is stored in the primary cell, data sent by the UE to the secondary cell is finally transmitted to the primary cell through an optical fiber. The main cell prepares the next uplink transmission according to the uplink authorization distributed to each cell by the BSR scheduling, but it is not set at present which carrier the BSR frames on, and the BSR can be sent on the secondary carrier, and also can be sent on the main carrier.
The method for reporting the buffer status report of the embodiment of the invention can reduce the complexity of the BSR cell construction and meet the real-time requirement, as shown in FIG. 1, and comprises the following steps:
And 102, sequencing the authorization information of the primary cell and the authorization information of the secondary cell, arranging the authorization information of the primary cell at the end, and finally establishing a Buffer Status Report (BSR) sent on a primary carrier.
And 103, preferentially sending the BSR in the main carrier during the frame-forming reporting.
As shown in fig. 2, the user equipment of the embodiment of the present invention includes:
and the analyzing unit 11 is configured to analyze the authorization information of the primary cell and the authorization information of the secondary cell after the UE receives the authorization information. A framing unit 12, configured to sequence the primary cell authorization information and the secondary cell authorization information, arrange the primary cell authorization information at the end, and finally construct a buffer status report BSR sent on a primary carrier. And a reporting unit 13, configured to send the BSR preferentially in the primary carrier during frame reporting.
The embodiment of the invention has the following beneficial effects:
on one hand, the complexity of the BSR cell construction at the UE end can be reduced as much as possible, and on the other hand, the real-time requirement of the BSR received by the main cell can be met.
In terms of complexity reduction, under the carrier aggregation technology, the UE needs to complete MAC PDU construction on multiple TBs within one TTI period. And according to the requirement on the protocol, each MAC PDU can carry a BSR control cell, and if the uplink transmission can complete the transmission of the uplink data of the UE, the transmission of the BSR control cell is cancelled. Therefore, if there is no suitable strategy for constructing BSR cells, it may be necessary to reverse and reassemble all the MAC PDUs constructed in this TTI when the last MAC PDU is constructed, thereby causing waste or delaying the transmission opportunity.
For the real-time requirement of the BSR received by the primary cell, the L2 entity corresponding to the UE on the network side is stored in the primary cell, so that the data sent by the UE to the secondary cell is finally transmitted to the primary cell through the optical fiber. And the main cell schedules uplink authorization to each cell according to the received BSR to prepare for next uplink transmission. Since it is not set on which carrier the BSR is transmitted, it is a random transmission process, and the BSR may be transmitted on the secondary carrier or the primary carrier during framing reporting. If the transmission is carried out on the secondary carrier, compared with the transmission on the primary carrier, the transfer process of the BSR from the secondary cell to the primary cell is increased, and the real-time performance is not achieved.
The embodiment of the invention can efficiently process the establishment of the BSR control cell in the framing process and can also meet the real-time requirement of the main cell for receiving the BSR. After receiving the authorization information including the authorization information of the main cell and the auxiliary cell at the UE side, the UE sorts the authorization information, arranges the authorization information of the main cell at the end, and finally builds the MACPDU sent on the main cell. In the framing process, if it is found that a BSR trigger condition is met and a BSR control cell needs to be sent in the current TTI, the BSR control cell is placed in the last MAC PDU loaded with RLC PDUs, and at this time, if the grant is larger than the data to be sent and there is a situation that part of TBs need to be sent without RLC PDU data load, the TB carries a piggyback buffer status report (PADDINGBSR). The PADDING BSR is called piggyback BSR, which is a type of BSR, and in addition, the BSR further includes: regular BSR, periodic BSR. For the PADDING BSR, when the UE is in the MAC PDU, besides the resources required for transmitting the service data, if there are remaining resources available (PADDING), the PADDING BSR is triggered.
The following describes an embodiment of the present invention through a specific application scenario, and as shown in fig. 3, the flow of fig. 3 includes the following steps:
The step is a sorting process, the authorization information of the main cell is sorted at the end, and finally the buffer status report BSR sent on the main carrier is established.
It should be noted that the network side allocates uplink resources for the UE, after the authorization is sent, the UE obtains the authorization, if the authorization is just enough to send all uplink data, the BSR may not be sent, the BSR is not needed, only group service data during framing is needed, and if the authorization is not enough to send all uplink data, the BSR needs to be sent, so that the network side performs subsequent transmission scheduling according to the uplink data amount required by the UE reporting the BSR, prepares for next transmission, and groups the BSR and the service data during framing.
The integrated module according to the embodiment of the present invention may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as an independent product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Correspondingly, the embodiment of the invention also provides a computer storage medium, in which a computer program is stored, and the computer program is used for executing the method for deciding the interoperation with the WLAN in the terminal cell handover of the embodiment of the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (6)
1. A method for reporting a buffer status report, the method comprising:
after receiving the authorization information, the UE analyzes the authorization information of the main cell and the authorization information of the auxiliary cell;
sequencing the authorization information of the primary cell and the authorization information of the secondary cell, arranging the authorization information of the primary cell at the end, and finally establishing a Buffer Status Report (BSR) sent on a primary carrier;
when the frame is reported, the BSR is preferentially sent in the main carrier;
the method further comprises the following steps: in the framing process, if the authorization information is larger than service data to be sent and part of TB has no RLC PDU data load and needs to be sent, determining the type of the BSR as a piggyback buffer status report (PADDING BSR) according to the size of the authorization information, and encapsulating the PADDING BSR in the part of TB which has no RLC PDU data load and needs to be sent.
2. The method of claim 1, further comprising: in the framing process, if the frame reporting trigger condition of the BSR is met and the BSR needs to be sent in the current transmission time interval TTI, the BSR is encapsulated in the last transport block TB.
3. The method according to claim 2, wherein the TB is specifically: a medium access control protocol data unit, MAC PDU, carrying a radio link control layer protocol data unit, RLC PDU.
4. A user equipment, the user equipment comprising:
the analysis unit is used for analyzing the main cell authorization information and the auxiliary cell authorization information in the authorization information after the UE receives the authorization information;
a framing unit, configured to rank the primary cell authorization information and the secondary cell authorization information, rank the primary cell authorization information at the end, and finally construct a buffer status report BSR sent on a primary carrier;
a reporting unit, configured to preferentially send a BSR in a primary carrier when performing frame reporting;
the framing unit is further configured to, in the framing process, if the authorization information is greater than service data to be sent and there is a part of TBs that do not have RLC PDU data load and need to be sent, determine the type of BSR as a piggybacked buffer status report PADDING BSR according to the size of the authorization information, and encapsulate the PADDING BSR in the part of TBs that do not have RLC PDU data load and need to be sent.
5. The UE of claim 4, wherein the framing unit is further configured to encapsulate the BSR in a last Transport Block (TB) in the framing process if the BSR needs to be sent within the current TTI if a triggering condition for reporting the BSR is met.
6. The UE of claim 5, wherein the TB is specifically: a medium access control protocol data unit, MAC PDU, carrying a radio link control layer protocol data unit, RLC PDU.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310603948.1A CN104661315B (en) | 2013-11-25 | 2013-11-25 | Method for reporting buffer status report and user equipment |
| PCT/CN2014/073253 WO2014183496A1 (en) | 2013-11-25 | 2014-03-11 | Reporting method for buffer status report and user equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310603948.1A CN104661315B (en) | 2013-11-25 | 2013-11-25 | Method for reporting buffer status report and user equipment |
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| CN104661315A CN104661315A (en) | 2015-05-27 |
| CN104661315B true CN104661315B (en) | 2020-03-31 |
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| CN105208667B (en) * | 2015-09-24 | 2018-09-04 | 南京楚卿电子科技有限公司 | A kind of distributed transmission scheduling system based on capacity boost |
| US10412620B2 (en) * | 2016-04-01 | 2019-09-10 | Motorola Mobility Llc | Method and apparatus for scheduling uplink transmissions with reduced latency |
| CN111031610B (en) * | 2016-09-26 | 2024-01-05 | 华为技术有限公司 | Method for transmitting information and user equipment |
| US10945155B2 (en) | 2016-10-19 | 2021-03-09 | Huawei Technologies Co., Ltd. | Method and apparatus for transmitting buffer status report |
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| CN101483918B (en) * | 2008-01-08 | 2011-11-23 | 华为技术有限公司 | Buffer condition report sending method and apparatus thereof |
| CN102065552B (en) * | 2009-11-17 | 2013-05-22 | 大唐移动通信设备有限公司 | Method and device for reporting BSR (Buffer Status Report) |
| CN102111751B (en) * | 2009-12-28 | 2013-08-14 | 电信科学技术研究院 | Method and device for reporting buffer state report |
| CN102149206B (en) * | 2010-02-09 | 2016-01-13 | 中兴通讯股份有限公司 | Uplink dispatch method |
| JP5565475B2 (en) * | 2011-02-10 | 2014-08-06 | 富士通株式会社 | Wireless communication system, receiving apparatus, transmitting apparatus, and wireless communication method |
| EP2826191B1 (en) * | 2012-03-15 | 2022-10-05 | Nokia Solutions and Networks Oy | Wireless multi-flow communications in the uplink |
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| CN104661315A (en) | 2015-05-27 |
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