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A receiving method, a sending method and a communication device

A receiving method, technology of communication equipment, applied in the direction of vehicle wireless communication service, communication between vehicle and infrastructure, error prevention/detection using return channel, etc., can solve the problem of repeated detection not clearly documented, etc.

Active Publication Date: 2021-01-08
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the introduction of secondary link data replication, the current conclusion is that the PDCP layer needs to perform duplication detection to discard duplicate data packets, but there is no clear record on how to perform duplication detection

Method used

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  • A receiving method, a sending method and a communication device
  • A receiving method, a sending method and a communication device
  • A receiving method, a sending method and a communication device

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Embodiment Construction

[0032] In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings that need to be used in the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

[0033] An embodiment of the present invention provides a receiving method for a receiving end. The receiving method is as follows: figure 1 shown, including the following steps:

[0034] Step 101: obtaining repeatability detection parameters;

[0035] Step 102: Using the repetition detection parameter, perform repetition detection on the received secondary link PDCP PDU.

[0036] Wherein, the receiving method may be implemented in the protocol layer PDCP entity in the receiving end, and the received secondary link ...

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Abstract

The present invention provides a receiving method, a sending method, and a communication device, wherein, the receiving method includes: acquiring a repeatability detection parameter; using the repeatability detection parameter, grouping the received sub-link data convergence protocol data unit Perform repeatability checks. According to the solution of the present invention, when receiving the packet data convergence protocol protocol data unit generated based on secondary link data replication, the receiving end uses the determined repeatability detection parameters to perform repeatability detection, and realizes the packet data convergence protocol protocol based on the secondary link Data unit duplication detection.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of secondary link data replication, and in particular, to a receiving method, a sending method and a communication device capable of performing secondary link data duplication detection. Background technique [0002] At present, R15V2X communication introduces sidelink packet duplication to improve the reliability of sidelink V2X message transmission. Among them, the secondary link terminal performs the data duplication function at the PDCP (Packet Data Convergence Protocol) layer, and the duplicated secondary link PDCP PDUs (Protocol Data Unit, Protocol Data Unit) are respectively submitted to two different RLCs ( Radio Link Control, radio link control) entity. Different RLC entities correspond to different logical channels, and different logical channels have different LCIDs (Logical Channel Identify, logical channel identifiers). In addition, since it is not currently supported to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26H04L1/18H04W4/40
CPCH04L1/1812H04L1/1841H04W4/40H04W4/44H04L43/08
Inventor 张艳霞杨晓东郑倩
Owner VIVO MOBILE COMM CO LTD