CN107635249B - Method, device and system for updating retransmission data packet buffer zone status report - Google Patents
Method, device and system for updating retransmission data packet buffer zone status report Download PDFInfo
- Publication number
- CN107635249B CN107635249B CN201610565812.XA CN201610565812A CN107635249B CN 107635249 B CN107635249 B CN 107635249B CN 201610565812 A CN201610565812 A CN 201610565812A CN 107635249 B CN107635249 B CN 107635249B
- Authority
- CN
- China
- Prior art keywords
- bsr
- logical channel
- index value
- channel group
- mac
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method, a device and a system for updating a status report of a buffer area of a retransmission data packet, wherein the method comprises the steps of identifying all PDUs which are transmitted in error and carry BSR MAC CEs; acquiring a label of a logical channel group in the BSR MAC CE; according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels; according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of each logic channel group; and updating the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
Description
Technical Field
The invention relates to the technical field of mobile communication, in particular to a method, a device and a system for updating a status report of a retransmission data packet buffer.
Background
In an existing Long Term Evolution (LTE) communication system and an LTE-Advanced (LTE-a) communication system, a User Equipment (User Equipment, Ue for short) wants to send data, first needs to notify a base station of the size of data to be transmitted through a Buffer Status Report (BSR), and after the base station obtains the BSR, the Ue is scheduled according to the size of the data to be transmitted, and a Physical Uplink Shared Channel (PUSCH) resource is allocated to the Ue to transmit the data. In order to reduce the waste of uplink radio resources as much as possible, the Ue sends the BSRs reported in the form of logical channel groups, and each Ue reports BSRs of 4 logical channel groups at most.
In the prior art, Ue reports BSRs in Protocol Data Units (PDUs) of a Medium Access Control (MAC), each MAC PDU fills up at most one MAC Control Element (CE) of a BSR, the MAC CE of each BSR loads BSR indexes of 1 or more logical channel groups according to different BSR formats, the BSR indexes are represented by 6-bit information, total 0 to 63 index values are 64, each index value corresponds to a Data volume range, and a corresponding relationship between the BSR index value and the Data volume range refers to 3GPP Protocol regulations.
In the prior art, the base station can only obtain the size of data to be transmitted of Ue through BSR reported by Ue, if Ue carries new transmission error of PDU of BSR MAC CE1, according to the current protocol, the base station does not immediately notify Ue to retransmit (for FDD, the base station notifies Ue of PDU transmission error this time in 4 th subframe after Ue transmits PDU, and Ue retransmits in 4 th subframe after receiving transmission error notification), and at the same time, Ue can also transmit other PDUs, if BSR MAC CE2 transmitted later is correctly analyzed by the base station earlier than BSR MAC CE1, at this moment, if the base station directly uses BSR MAC CE1 analyzed later to replace BSR at the base station side of MAC CE2, the problem that BSR maintained by the base station is inconsistent with BSR maintained by the terminal occurs, because the generation time of BSR MAC CE2 is later than that of BSR at BSR MAC CE1, BSR CE2 represents the latest state of Ue, obviously, it is unreasonable that the base station replaces the BSR maintained by the base station with the earlier generated BSR MAC CE1 after using the BSR MAC CE2, which may result in the waste of uplink scheduling resources and uplink transmission power of the base station.
Disclosure of Invention
In view of this, the present invention discloses a method, an apparatus and a system for updating a status report of a buffer of a retransmission data packet, wherein a Ue updates the retransmission data packet reported to a base station side according to the actual status of the buffer, so as to overcome the problem and defect of inconsistent buffer status reports maintained by the base station and the Ue due to uplink service retransmission in the prior art.
On one hand, the invention discloses a method for updating a retransmission data packet buffer area status report, which comprises the following steps:
the Ue identifies all the PDUs which are transmitted in error and carry BSR MAC CE;
the Ue acquires a label of a logical channel group in the BSR MAC CE;
according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels;
according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of each logic channel group;
and the Ue updates the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
On the other hand, the invention discloses a device for updating the status report of the buffer area of the retransmission data packet, which comprises the following components:
an identification module: the PDU is used for identifying all transmission errors and carrying BSR MAC CE;
a label acquisition module: a label used for acquiring a logical channel group in the BSR MAC CE;
a data volume acquisition module: according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the method is used for respectively obtaining the size of the data to be transmitted in the buffer areas of the logical channel groups according to the labels;
a new index acquisition module: the BSR module is used for acquiring a new BSR value of each logic channel group according to the corresponding relation between the BSR value and the data volume range;
the new index updating module: and the BSR module is configured to update the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmitted PDU using the new BSR index value.
Meanwhile, the invention discloses a system for updating the status report of the buffer area of the retransmission data packet, which comprises the following components: a memory and a processor, said processor performing the following:
identifying all PDUs which are transmitted in error and carry BSR MAC CE; acquiring a label of a logical channel group in the BSR MAC CE; according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels; according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of each logic channel group; and updating the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
The method, the device and the system for updating the status report of the retransmission data packet buffer area can ensure that the base station can acquire the data volume to be transmitted of the terminal in time to the greatest extent, avoid the problem of inconsistent data volumes to be transmitted maintained by the base station and the terminal due to scheduling time sequence, greatly save scheduling resources of the base station and the transmitting power of uplink, improve the transmission efficiency of the uplink and reduce the interference of cells.
Drawings
Fig. 1 is a basic table of a corresponding relationship between a BSR index value and a data volume range specified by a 3GPP protocol;
fig. 2 is an extended table of the corresponding relationship between the BSR index value and the data size range specified by the 3GPP protocol;
FIG. 3 is a diagram illustrating a method for updating a buffer status report of a retransmitted packet according to the present invention;
FIG. 4 is a diagram illustrating an apparatus for retransmitting a packet buffer status report update according to the present invention;
FIG. 5 is a system diagram illustrating a retransmission packet buffer status report update according to the present invention.
Detailed Description
In the scheme disclosed by the invention, at the beginning of accessing a base station from a Ue, the Ue identifies each uplink PDU which has transmission errors and carries a BSR MAC CE, and then obtains the labels of the logical channel groups carried in the BSR MAC CE, wherein the labels represent 4 different logical channel groups from 0 to 4.
According to the scheduling sequence, when the uplink PDU is retransmitted, the Ue respectively obtains the size of the data to be transmitted in the buffer marked with the logical channel group, for example, the logical channel group marks carried in the BSR MAC CE are 2 and 3, and here, only the size of the data to be transmitted in the buffers of the logical channel groups 2 and 3 is obtained.
And the Ue maps the size of the data volume to be transmitted in the buffer of the logical channel group to the BSR index value according to the corresponding relationship between the BSR index value and the data volume range in the 3GPP 36.321 protocol. The corresponding relation table of the buffer BSR index value and the data volume range is given by a basic table defined by a protocol for LTE and LTE-A systems before a protocol version 10; for the LTE and LTE-a systems of release 10 and later, the protocol defines two tables, one basic table and one extended BSR table, and it needs to determine which table is used by Ue and base station through high-level signaling. The data volume to be transmitted corresponding to the BSR index value is a range, and in the scheme, the corresponding index value is determined according to the corresponding relation between the BSR index value and the data volume range.
And the Ue updates the BSR index value of the corresponding logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
The main implementation principle, the specific implementation mode and the achieved beneficial effects of the technical scheme disclosed by the invention are explained in detail in the following with the accompanying drawings.
The method for updating the buffer status report of the retransmission data packet disclosed by the invention is shown as the attached figure 3, and comprises the following steps:
101: the Ue identifies all the PDUs which are transmitted in error and carry BSR MAC CE;
102: the Ue acquires a label of a logical channel group in the BSR MAC CE;
103: according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels;
104: according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of each logic channel group;
105: and the Ue updates the BSR index value of each logic channel group in the retransmission PDU carrying the BSR MAC CE by using the new BSR index value.
The technical solution disclosed in the present invention will be described in detail by the following specific examples.
The first embodiment is as follows:
the Ue initial access is 10 Ue, the protocol version number of the Ue is 9, an uplink PDU carrying BSR MAC CE is transmitted at time T1, and the base station notifies the Ue of the uplink PDU transmission error
Step S101, Ue identifies the PDU which has the transmission error and carries BSR MAC CE;
step S102, Ue acquires the labels 2 and 3 of the logical channel group in the BSR MAC CE in the PDU;
step S103: when PDU carrying BSR MAC CE is retransmitted, the Ue respectively obtains the size of data to be transmitted in the buffer of the logical channel group 2 and the buffer of the logical channel group 3, the size of the data to be transmitted in the buffer of the logical channel group 2 is 100bytes, and the size of the data to be transmitted in the buffer of the logical channel group 3 is 200 bytes;
step S104: acquiring a BSR value of each logical channel group according to a corresponding relation table of the BSR value and the data volume range specified in a 3GPP 36.321 protocol, wherein the BSR value of the logical channel group 2 is 16, and the BSR value of the logical channel group 3 is 20;
step S105: and updating the BSR index of each logical channel group in the retransmission PDU carrying the BSR MAC CE by using the new BSR index values 16 and 20 of the logical channel groups 2 and 3.
Example two:
UE initial access with UE Index 10, where the protocol version number of the UE is 11 (and the UE and the base station use the extended BSR table), and at time T1, the UE transmits an uplink PDU carrying BSR MAC CE, and the base station notifies the uplink PDU of a transmission error.
Step S201: the Ue identifies the PDU which carries the BSR MAC CE and has the transmission error;
step S202: acquiring a label number 3 of a logical channel group in a BSR MAC CE in the uplink PDU;
step S203: when PDU carrying BSR MAC CE is retransmitted, acquiring the size of data to be transmitted in a buffer of the UE logical channel group 3, wherein the size of the data to be transmitted in the buffer of the logical channel group 3 is 10000 bytes;
step S204: obtaining a BSR index value of each logical channel group according to an expansion table of a corresponding relation between the BSR index value and a data volume range in a 3GPP 36.321 protocol, wherein the BSR index value of the logical channel group 3 is 35;
step S205: and updating the BSR index of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value of the logical channel group 3.
Example three: the embodiment provides a device for updating a buffer status report of a retransmission packet, which includes, as shown in fig. 3:
an identification module: the PDU is used for identifying all transmission errors and carrying BSR MAC CE;
a label acquisition module: a label used for acquiring a logical channel group in the BSR MAC CE;
a data volume acquisition module: according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the method is used for respectively obtaining the size of the data to be transmitted in the buffer areas of the logical channel groups according to the labels;
a new index acquisition module: the BSR module is used for acquiring a new BSR value of each logic channel group according to the corresponding relation between the BSR value and the data volume range;
the new index updating module: and the BSR module is configured to update the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmitted PDU using the new BSR index value.
Example four: the embodiment provides a system for retransmitting a packet buffer status report update, which comprises a memory and a processor, wherein the processor performs the following processing: identifying all PDUs which are transmitted in error and carry BSR MAC CE; acquiring a label of a logical channel group in the BSR MAC CE; according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels; according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of each logic channel group; and updating the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
From the above description, it can be seen that, according to the method, the apparatus, and the system provided in the embodiments of the present invention, the base station can be ensured to obtain the amount of data to be transmitted by the terminal in time to the greatest extent, the problem of inconsistency between the amounts of data to be transmitted maintained by the base station and the terminal due to scheduling timing is avoided, the scheduling resource of the base station and the uplink transmission power are greatly saved, the uplink transmission efficiency is improved, and the interference of the cell can also be reduced.
While the invention has been described in connection with specific embodiments thereof, it is to be understood that it is intended by the appended drawings and description that the invention may be embodied in other specific forms without departing from the spirit or scope of the invention. While the features of the embodiments and examples may be combined with each other without conflicting information.
It should be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
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 (3)
1. A method of retransmitting packet buffer status report updates, the method comprising:
identifying all PDUs which are transmitted in error and carry BSR MAC CE;
acquiring a label of a logical channel group in the BSR MAC CE;
according to the scheduling time sequence, when the PDU carrying the BSR MAC CE is retransmitted, the size of data to be transmitted in the buffer areas of the logical channel groups is respectively obtained according to the labels;
acquiring a new BSR index value of each logic channel group according to the corresponding relation between the BSR index value and the data volume range;
and updating the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
2. An apparatus for retransmitting packet buffer status report updates, the apparatus comprising:
an identification module: the PDU is used for identifying all transmission errors and carrying BSR MAC CE;
a label acquisition module: a label used for acquiring a logical channel group in the BSR MAC CE;
a data volume acquisition module: according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the method is used for respectively obtaining the size of the data to be transmitted in the buffer areas of the logical channel groups according to the labels;
a new index acquisition module: the method comprises the steps of obtaining a new BSR value of each logic channel group according to the corresponding relation between the BSR value and the data volume range;
the new index updating module: and the BSR module is configured to update the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmitted PDU using the new BSR index value.
3. A system for retransmitting packet buffer status report updates, the system comprising a memory and a processor, the processor performing the following: identifying all PDUs which are transmitted in error and carry BSR MAC CE; acquiring a label of a logical channel group in the BSR MAC CE; according to the scheduling sequence, when the PDU carrying the BSR MAC CE is retransmitted, the Ue respectively acquires the size of data to be transmitted in the buffer areas of the logical channel groups according to the labels; according to the corresponding relation between the BSR index value and the data volume range, the Ue acquires a new BSR index value of the logical channel group; and updating the BSR index value of each logical channel group in the BSR MAC CE carried in the retransmission PDU by using the new BSR index value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565812.XA CN107635249B (en) | 2016-07-18 | 2016-07-18 | Method, device and system for updating retransmission data packet buffer zone status report |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610565812.XA CN107635249B (en) | 2016-07-18 | 2016-07-18 | Method, device and system for updating retransmission data packet buffer zone status report |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107635249A CN107635249A (en) | 2018-01-26 |
| CN107635249B true CN107635249B (en) | 2022-06-07 |
Family
ID=61112438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610565812.XA Active CN107635249B (en) | 2016-07-18 | 2016-07-18 | Method, device and system for updating retransmission data packet buffer zone status report |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107635249B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100085362A (en) * | 2009-01-20 | 2010-07-29 | 엘지전자 주식회사 | Method of buffer status reporting |
| CN102118189A (en) * | 2009-12-31 | 2011-07-06 | 华为技术有限公司 | Contention-based resource configuration method and device |
| CN102291760A (en) * | 2010-06-21 | 2011-12-21 | 电信科学技术研究院 | Method, system and equipment for reporting and confirming buffer memory state information |
| CN102905305A (en) * | 2011-07-25 | 2013-01-30 | 联芯科技有限公司 | Reporting method and user terminal for buffer status report |
| CN102934505A (en) * | 2010-04-06 | 2013-02-13 | 三星电子株式会社 | Method and apparatus for processing scheduling information in mobile communication system |
| TW201541900A (en) * | 2014-03-21 | 2015-11-01 | Panasonic Ip Corp America | Scheduling request procedure for D2D communication |
-
2016
- 2016-07-18 CN CN201610565812.XA patent/CN107635249B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100085362A (en) * | 2009-01-20 | 2010-07-29 | 엘지전자 주식회사 | Method of buffer status reporting |
| CN102118189A (en) * | 2009-12-31 | 2011-07-06 | 华为技术有限公司 | Contention-based resource configuration method and device |
| CN102934505A (en) * | 2010-04-06 | 2013-02-13 | 三星电子株式会社 | Method and apparatus for processing scheduling information in mobile communication system |
| CN102291760A (en) * | 2010-06-21 | 2011-12-21 | 电信科学技术研究院 | Method, system and equipment for reporting and confirming buffer memory state information |
| CN102905305A (en) * | 2011-07-25 | 2013-01-30 | 联芯科技有限公司 | Reporting method and user terminal for buffer status report |
| TW201541900A (en) * | 2014-03-21 | 2015-11-01 | Panasonic Ip Corp America | Scheduling request procedure for D2D communication |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107635249A (en) | 2018-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7018513B6 (en) | HARQ-ACK feedback time identification method and instruction method, terminal equipment and network equipment | |
| US10003994B2 (en) | Techniques for identifying physical hybrid automatic request indicator channel resources | |
| CN109687950B (en) | Transmission method and device on unlicensed frequency band | |
| CN103202058B (en) | Mobile station apparatus, wireless communications method and integrated circuit | |
| CN110022608B (en) | Information processing method, device and equipment | |
| CN110035439B (en) | LAA transmission method and device in cellular network | |
| CN104955158B (en) | A kind of method and apparatus of aperiodic SRS | |
| CN104901775A (en) | Method and device for communicating on unauthorized frequency spectrum | |
| AU2012329671B2 (en) | Apparatus and method for transmitting and receiving persistent scheduling change information in wireless communication system | |
| CN105306180A (en) | LAA (License Assisted Access) communication method and device | |
| CN108370562B (en) | Cross-carrier scheduling method, feedback method and device | |
| US9439177B2 (en) | Apparatus and method for transmitting and receiving persistent scheduling information in wireless communication system | |
| CN110637433A (en) | HARQ process for grant-less uplink transmission | |
| CN101686548B (en) | Method of performing data transmission corresponding to semi-persistent resources in wireless communications system and related device | |
| CN108400806B (en) | Channel transmission method and device and terminal | |
| CN111373807B (en) | Data transmission method and device | |
| US20220368505A1 (en) | Data feedback method and apparatus | |
| CN107635249B (en) | Method, device and system for updating retransmission data packet buffer zone status report | |
| CN102123492B (en) | Method, system and equipment for configuring downlink subframes and receiving downlink data | |
| CN103053212B (en) | Resource regulating method and data transmission method and equipment and system | |
| US11856582B2 (en) | Data transmission method and communications apparatus | |
| CN105207756A (en) | Method and device for communication based on unlicensed spectrum | |
| CN113383591B (en) | Communication method and device | |
| WO2017080430A1 (en) | Redundancy version, and change cycle determination and channel estimation method and device therefor | |
| US10523385B2 (en) | Method and device for transmitting signal of base station in wireless communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |