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Voice packet loss processing method and device

A packet loss and voice technology, applied in the field of communication, can solve problems such as wasting air interface resources

Active Publication Date: 2020-07-28
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a voice packet loss processing method and device, which is used to overcome the problem that in the prior art, during the feedback process of compression failure at the receiving end, the data packet that cannot be decompressed is still received and the sending end needs to send longer data at this time. Packets waste air interface resources

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  • Voice packet loss processing method and device
  • Voice packet loss processing method and device

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to 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.

[0067] In order to facilitate the understanding of the present invention, some existing technologies of the VOLTE user plane protocol stack and the ROHC protocol involved in the embodiments of the present invention are firstly introduced.

[0068] (1) VOLTE user plane protocol stack

[0069] figure 1 The VOLTE user plane protocol stack is shown. On the core network or UE side, voice data forms voice packets through different frames, frequencies, sampling and...

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Abstract

The embodiment of the invention relates to a voice packet loss processing method and device. The method comprises when it is determined that a packet loss event occurs and may affect the normal analysis of a receiving end, recompressing a head node SDU in a queue to be transmitted in order that a compressed message header carries the indication information that enables the receiving end to know atimestamp of a header node SDU packet; transmitting the header node SDU packet to the receiving end, and recompressing the other SDU packets in the queue according to the ROHC updated by the transmitting end and transmitting the recompressed packets to the receiving end. Therefore, the receiving end can update the ROHC context of the receiving end according to the indication information carried bythe head node SDU, and can correctly analyze the following received SDU so as to avoid inability to correctly analyze the data packets due to the continuous transmission of the data packets in the queue in a packet loss feedback, prevent a packet loss probability from further deteriorating, avoid unnecessary state transition of the receiving end due to decompression failure, and achieve a simpleand efficient packet loss processing process.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a voice packet loss processing method and device. Background technique [0002] In the LTE mobile communication network, VOLTE (Voice Over LTE, voice service based on LTE) is an end-to-end voice solution under all-IP conditions. The voice data packet has the characteristics of periodic arrival and relatively fixed data packet size. The voice is compressed and encoded by Adaptive Multi-Rate (AMR, Adaptive Multi-Rate), and then encapsulated into IP data packets for transmission. For example: the broadband voice data packet with the highest rate of 23.85Kbps is 61 bytes. However, the packet header RTP / UDP / IPv6 in the AMR only reaches 60 bytes, so the actual utilization rate of the air bandwidth is only about 50%. The voice silence data packet size is only 7 bytes, but the packet header reaches 60 bytes, and the bandwidth utilization rate is as low as 10%. ROHC (Robust Head...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04W28/06H04L29/06
CPCH04L69/04H04W28/0231H04W28/06H04W28/14
Inventor 程岳
Owner DATANG MOBILE COMM EQUIP CO LTD
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