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Data processing method and device

A data processing and equipment technology, applied in the field of communication, can solve the problems of RLC PDU fragmentation discarding, affecting user subjective experience, etc.

Active Publication Date: 2021-06-22
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the receiving side, a PDCP PDU is composed of multiple RLC PDUs. If at least one of the RLC PDUs that make up the PDCP PDU is lost, the MAC layer will retransmit it. If the retransmission cannot recover the lost RLC PDU, all related to this PDCP PDU All RLC PDU fragments will be discarded, affecting the user's subjective experience

Method used

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Examples

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example 1

[0175] Example 1: The number of lost RLC PDUs is one

[0176] Step C1: When the lost RLC PDU is located at the non-end position of the PDCP PDU to be combined and the number is one, calculate the voice net of the lost RLC PDU according to the voice data length of the correctly received RLC PDU and the preset voice frame length load length.

[0177]Wherein, after acquiring the RLCSNs of all RLC PDUs of the PDCP PDUs to be combined, the specific position of the lost RLC PDUs in the PDCP PDUs to be combined can be determined according to the RLCSNs of the lost RLC PDUs. The voice frame length can be preset, or the base station can know the current coding rate and RoHC switch information by analyzing the PDCP PDU successfully packaged, so as to know the voice frame length.

[0178] Calculate the voice payload length Lm of the lost RLC PDU according to the correctly received RLC PDU and the length of the voice frame. For example, the voice payload length of the lost RLC PDU can b...

example 2

[0181] Example 2: The number of lost RLC PDUs is multiple

[0182] Get the voice payload from the target MAC PDU, including:

[0183] Step D1: When the lost RLC PDU is located at the non-end position of the PDCP PDU to be combined, determine the MAC header length of the target MAC PDU.

[0184] The base station first determines the header length of the target MAC PDU to prepare for removing the header length. For example, according to whether the periodicBSR_Timer times out, determine whether there is a short-period BSR (Buffer Status Report; buffer status report) in the MAC header. According to the packet capture data on the live network, if the MAC PDU to which the RLC PDU in the middle belongs contains a periodic BSR, the type of the periodic BSR is a short periodic BSR.

[0185] Wherein, periodicBSR_Timer is a periodic BSR timer. The timer is cleared whenever the BSR is reported, and the BSR report is triggered when the timer exceeds the preset period. The current BSR ...

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Abstract

Embodiments of the present invention provide a data processing method and device for obtaining a PDCP PDU from partially correctly received RLC PDUs of the PDCP PDU. Obtain N correctly received radio link control RLC PDUs of the PDCP protocol data unit PDU; generate a PDCP PDU according to the N correctly received RLC PDUs, and the PDCP PDU includes M RLC PDUs, N and M is a positive integer, N

Description

technical field [0001] The present invention relates to the communication field, in particular to a data processing method and equipment. Background technique [0002] Long term evolution (long term evolution, LTE) user plane protocol stack, including Packet Data Convergence Protocol (PDCP), Radio Link Protocol (RLC) and Media Access Protocol (MAC). Wherein, the RLC layer is located between the PDCP layer and the MAC layer, and it communicates with the PDCP layer through a service access point (SAP), and communicates with the MAC layer through a logical channel. On the receiving side, a PDCP PDU is composed of multiple RLC PDUs. If at least one of the RLC PDUs that make up the PDCP PDU is lost, the MAC layer will retransmit it. If the retransmission cannot recover the lost RLC PDU, all related to this PDCP PDU All RLC PDU fragments will be discarded, affecting the user's subjective experience. Contents of the invention [0003] Embodiments of the present invention provid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W80/02H04W28/06
CPCH04W80/02H04W28/065H04L47/34H04W28/06H04W28/04H04L1/0045H04L1/1642H04L5/0055
Inventor 李拟珺杨颜博魏岳军李廉唐欣
Owner HUAWEI TECH CO LTD
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