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Method and device for reporting buffer status

A technology for caching data volume and reporting. It is applied in network data management, network traffic/resource management, electrical components, etc. It can solve the problem of not providing multiple TB reports for cached data volume, etc., and achieve flexible reporting and flexible caching of data volume. Effect

Active Publication Date: 2012-04-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When technologies such as space division multiplexing and carrier aggregation are introduced, the UE may obtain multiple TBs in one TTI, but the prior art does not provide a method for coordinating the use of the above-mentioned multiple TBs to report the amount of buffered data

Method used

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  • Method and device for reporting buffer status
  • Method and device for reporting buffer status
  • Method and device for reporting buffer status

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] When there is a transmission block satisfying the first condition in the selected transmission block, the buffer data volume report of all logical channel groups and its control unit subheader may be carried on the transmission block satisfying the first condition and sent to the base station.

[0041] Optionally, if there are multiple transmission blocks that meet the first condition at the same time, the buffer data volume reports of all the above logical channel groups and their control unit subheaders can be carried on the multiple transmission blocks that meet the first condition. Send; or in order to save wireless resources, select one of all the transmission blocks that meet the first condition to carry the buffer data volume report of all the above-mentioned logical channel groups and the control unit subheader and send it.

[0042] Optionally, if there are both one or more transmission blocks that meet the first condition, and one or more transmission blocks that mee...

example 2

[0044] When there are transmission blocks meeting the second condition in the selected transmission block, according to the number M of transmission blocks meeting the second condition, select less than or equal to M logical channel groups from the buffer data volume report of all logical channel groups. The buffer data volume report of the channel group, the buffer data volume report of different logical channel groups and the corresponding control unit subheaders are carried on different transmission blocks meeting the second condition and sent to the base station, where M is an integer greater than 0.

[0045] For example, if the total number of logical channel groups is greater than M, the buffer data volume reports of less than or equal to M logical channel groups can be selected, and / or the buffer data volume reports of multiple logical channel groups can be combined and carried separately Send to the base station on the transmission block that meets the second condition; if...

example 3

[0051] When there is a transmission block that meets the second condition in the selected transmission block, the buffered data volume reports of multiple logical channel groups are combined to form a combined buffered data volume report, where the combined buffered data volume report The length of its control unit subheader is less than or equal to the maximum remaining bit length in the transmission block meeting the second condition; the combined buffered data volume report and its control unit subheader are carried on the transmission block meeting the second condition and sent To the base station.

[0052] In order to support the above-mentioned combination, the structure of the existing control unit sub-header can be modified so that the control unit sub-header includes information indicating the length of the buffered data volume report. The indication information may include L used to indicate the length of the buffered data volume report, and may also include bits F used...

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Abstract

An embodiment of the invention discloses a method and a device for reporting a buffer status. The method comprises the following steps of: obtaining a plurality of transport blocks from a nodeB within a transmission timer interval; selecting the transport block in accordance with a transmission condition of a buffer status report from the plurality of transport blocks; and bearing the buffer status report of a logical channel group and a control unit sub-header thereof to the selected transport block and sending the transport block to the nodeB, so that user equipment can make full use of padding spaces obtained in the plurality of transport blocks to report the buffer status flexibly.

Description

Technical field [0001] The present invention relates to the field of wireless communication, and in particular to a method and device for reporting the amount of buffered data. Background technique [0002] In the existing LTE (Long Term Evolution) communication system, before the eNodeB (evolved NodeB, evolved base station) schedules resources for the UE (User Equipment), the eNodeB needs to determine the size of the resources scheduled to a specific UE In order to minimize unnecessary waste of radio resources, the eNodeB needs to allocate appropriate resources to the UE to achieve the goal of making full use of radio resources. In order to achieve this goal, the UE first needs to buffer the amount of data and report it to the eNodeB by sending a Buffer Status Report (BSR). The eNodeB comprehensively evaluates the priority and quantity of the buffered data, and finally is The user initiates a data scheduling. [0003] In the prior art, the UE can only obtain one TB (Transport Bl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04W28/14H04L47/30
CPCH04L47/14H04L47/30H04W72/1284H04W24/10H04W72/1252H04W72/52H04W72/21H04W72/12H04W8/04
Inventor 韩广林姜怡权威
Owner HUAWEI TECH CO LTD
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