Method and device for wireless bearer buffer reporting

A technology of wireless bearer and buffer status report, applied in the field of communication, can solve the problem of base station scheduling redundant uplink resources, and achieve the effect of resource optimization and resource saving

Active Publication Date: 2022-04-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a wireless bearer buffer reporting method and device to solve the problem of redundant uplink resource scheduling by the base station caused by the existing buffer reporting method

Method used

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  • Method and device for wireless bearer buffer reporting
  • Method and device for wireless bearer buffer reporting
  • Method and device for wireless bearer buffer reporting

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0088] Example 1: as image 3 As shown, the RB activates repeated transmission and corresponds to two RLC entities. The RLC entity corresponding to the second logical channel is the main RLC entity and always performs data transmission of the RB. Therefore, the buffer corresponding to the logical channel group is always calculated when the data arrives. Reporting; the RLC entity corresponding to the first logical channel is a secondary RLC entity, and the first logical channel is to be used for repeated transmission. At this time, it is assumed that for the first logical channel corresponding to the PDCP entity of the RB, only the PDCP PDU and PDCP SDU are backed up at the PDCP layer (shown by the dotted box in the figure), and although the RLC entity has activated repeated transmission, the image 3 The PDCP PDU1, PDCP PDU2, PDCP SDU1, and PDCP SDU2 backed up by the PDCP layer are not repeatedly transmitted. At this time, there is no target PDCP PDU in the first logical chann...

example 2

[0090] Example 2: as Figure 4 As shown, the RB activates repeated transmission and corresponds to two RLC entities. The RLC entity corresponding to the second logical channel is the main RLC entity and always performs data transmission of the RB. Therefore, the buffer corresponding to the logical channel group is always calculated when the data arrives. Reporting; the RLC entity corresponding to the first logical channel is a secondary RLC entity, and the first logical channel is to be used for repeated transmission. At this time, it is assumed that for the first logical channel corresponding to the PDCP entity of the RB, after the PDCP layer backs up the PDCP PDU, it is handed over to the RLC layer to obtain the RLC PDU. Figure 4 The PDCP PDU1, PDCP PDU2, PDCP SDU1, PDCP SDU2 (shown by the dotted box in the figure) and the RLC PDU (shown by the dotted box in the figure) that have been delivered to the RLC layer will not be repeatedly transmitted. The target PDCP PDU and th...

example 3

[0092] Example three: as Figure 5 As shown, the RB activates repeated transmission and corresponds to two RLC entities. The RLC entity corresponding to the second logical channel is the main RLC entity and always performs data transmission of the RB. Therefore, the buffer corresponding to the logical channel group is always calculated when the data arrives. Reporting; the RLC entity corresponding to the first logical channel is a secondary RLC entity, and the first logical channel is to be used for repeated transmission. At this time, it is assumed that for the first logical channel corresponding to the PDCP entity of the RB, after the PDCP layer backs up the PDCP PDU, all the backed up PDCP PDUs are repeatedly transmitted, that is, it is determined that all the backed up PDCP PDUs are the target PDCP PDU. The first buffered data volume corresponding to the channel is the sum of the PDUs in the dotted ellipse, that is, PDCP PDU1, PDCPPDU2, PDCP SDU1, PDCP SDU2 of the PDCP lay...

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Abstract

Embodiments of the present invention provide a radio bearer cache reporting method and device, wherein the method includes: acquiring a protocol data unit (PDU) for which uplink data transmission has been determined for a radio bearer RB that has been activated for repeated transmission; performing uplink data transmission according to the determined PDU, the buffer status report BSR is reported. The embodiment of the present invention realizes accurate allocation of uplink transmission resources of terminals by the base station, saves uplink resources, and improves resource transmission efficiency.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for buffering and reporting radio bearers. Background technique [0002] Currently, the 5G NR system mainly supports three types of services, including enhanced MobileBroadband (eMBB), massive Machine Type Communications (mMTC) and Ultra-Reliable and Low Latency Communications (Ultra-Reliable and Low Latency Communications, URLLC). For URLLC, due to its relatively high requirements on delay and reliability, 3GPP has introduced a repeated transmission mechanism, that is, the same packet data convergence protocol (Packet Data Convergence Protocol, PDCP) layer protocol data is transmitted through multiple paths. The unit PDU (Protocol Data Unit, PDU) improves transmission reliability and reduces transmission delay through multiple transmission gain. Wherein, the repeated transmission model includes a carrier aggregation (Carrier aggregation, CA) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W72/12
CPCH04W28/0278H04W72/1268H04W72/21
Inventor 谌丽赵亚利
Owner DATANG MOBILE COMM EQUIP CO LTD
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