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Method and device for processing voice data packets

A technology of voice data and processing method, which is applied in the direction of digital transmission system, error prevention, electrical components, etc., and can solve problems such as error diffusion, TS value restoration error, and voice data packet restoration accuracy reduction, etc.

Active Publication Date: 2020-08-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

If the packet loss occurs when the voice silence period and the voice activation period are interchanged, the TS value increment in the RTP header of the voice data packet will increase out of order, which will cause the TS value to be restored incorrectly when the current voice data packet is decompressed, and the wrong current voice will be restored The data packet will also cause the restoration error of the subsequent voice data packet, resulting in error diffusion, which reduces the accuracy of the restoration of the voice data packet

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  • Method and device for processing voice data packets
  • Method and device for processing voice data packets
  • Method and device for processing voice data packets

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In the LTE system, when the IP data packet format is used to transmit voice data packets, the voice packet format is as follows: figure 1 As shown, the voice message includes a message header and a payload. The message header is composed of an IP packet header, a UDP packet header and an RTP packet header. The payload is the voice to be transmitted. figure 1 It can be seen that when the IP data packet format is used to transmit the voice data packet, the header occupi...

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Abstract

The invention discloses a method and device for processing a voice data packet, which determines the packet type of the received first voice data packet and the TS_STRIDE value of the first voice data packet head compressed message corresponding to the first voice data packet type, according to The TS_SCALED value of the first voice data packet header compressed message of the set quantity, and the TS_STRIDE value of the first voice data packet header compressed message, within the set number range, determine the time stamp TS of the first voice data packet header compressed message in turn value until the determined TS value can be restored to obtain the correct first voice data packet. That is, the correct TS value is determined through multiple attempts, which improves the accuracy of restoring voice data packets according to the determined TS value.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for processing voice data packets. Background technique [0002] In the long-term evolution (Long Term Evolution, LTE) mobile communication network, voice communication uses the Voice over Internet Protocol (VoIP) technology based on the interconnection protocol between networks, that is, on the wireless link according to the interconnection protocol between networks ( Internet Protocol, IP) data packet format to transmit voice data packets. [0003] When transmitting voice data packets based on VoIP technology, first adopt Adaptive Multi-Rate (Adaptive Multi-Rate, AMR) scheme to compress and encode, and then encapsulate them into IP data packets for transmission, because the AMR scheme carries voice data packets on the real-time transmission protocol ( On Real-time Transport Protocol, RTP) and User Datagram Protocol (UserDatagram Protocol, UDP...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L1/00
CPCH04L1/0061H04L65/764
Inventor 程岳
Owner DATANG MOBILE COMM EQUIP CO LTD
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