Reporting method and terminal equipment of secondary link cache status report

Abstract

The present disclosure provides a method for transmitting a sidelink buffer status report and a sidelink terminal device. The method comprises sending a sidelink buffer status report. The sidelink buffer status report comprises a destination address field, a logical channel group field and a buffer size field, or comprises a logical channel group field and a buffer size field, wherein at least one of the destination address field and the logical channel group field is represented as a bitmap.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for reporting secondary link buffer state reports and a terminal device. Background technique [0002] The role of the side link buffer status report (Sidelink BSR) is that the Sidelink UE tells the base station the amount of data (in bytes) to be sent by all logical channels in a logical channel group based on the ProSe Destination address. [0003] The format of the LTE Sidelink BSR is arranged in the order of the LCG ID. When there are not enough resources to report the resource requirements, for the same LCG ID, one or more destination indexes corresponding to the amount of data to be transmitted may be reported. For the fast-growing V2X services and use cases, service priority division also needs to be more detailed. The number of LCG groups in LTE Sidelink BSR is only 4 groups, which cannot meet the current requirements; the Buffer Size field of LTE Sidelink occup...

AI Technical Summary

Problems solved by technology

For the fast-growing V2X services and use cases, service priority division also needs to be more detailed. The number of LCG groups in LTE Sidelink BSR is only 4 groups, which cannot meet the current requirements; the Buffer Size field of LTE Sidelink occupies 6 bits, and the total index is 64 There are only a few types, and the sharp increase in eV2X service types requires a larger amount of data. If the 64 types of indexes of LTE are still used, the Buffer Size span indicated by each level of eV2X will be large, and the base station cannot accurately confirm the resource requirements of Sidelink UE. , which will cause a certain degree of waste of resources in the resource scheduling process

In addition, the current agreement has not yet defined the Sidelink BSR format of NR.

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