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Realization method of speech service

A voice service and voice frame technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as increased mobile phone costs, inability to support, and complicated mobile phone processing, and achieve the effect of avoiding network cost increases

Inactive Publication Date: 2009-08-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] First of all, the conversion between voice packet data and voice frame data needs to be realized by the mobile phone, and most early mobile phones cannot support this function
[0009] Secondly, this networking method requires the mobile phone to perform jitter processing, which leads to complex processing of the mobile phone, requires higher processing performance, and increases the cost of the mobile phone.

Method used

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  • Realization method of speech service

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Embodiment Construction

[0076] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0077] The method of the present invention is figure 2 On the basis of the shown networking mode, the existing technology is improved, and the voice data protocol (VDP) layer is added on the RAN, image 3 is a schematic structural diagram of the protocol layer of the RAN of the present invention, from image 3 It can be seen from the figure that, in the protocol layer interacting with the packet network, the RAN of the present invention not only includes the original packet transport layer, link layer and physical layer, but also adds a VDP layer on top of the packet transport layer, so as to Realize mutual conversion between voice frame data and voice packet data. The RAN has the function of converting speech frame data into speech packet data ...

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Abstract

A method for implementing speech service includes such steps as setting up VDP layer on RAN for the conversion between speech frame data and speech packet data, receiving the encoded speech frame data from MS by the RAM of transmitting end, converting it to speech packet data, transmitting it to packet network, receiving it by the RAM of receiving end, converting it to speech frame data by VDP layer, transmitting it to MS, decoding it and reproducing.

Description

technical field [0001] The invention relates to voice transmission technology, in particular to a method for realizing voice services in a packet network. Background technique [0002] Traditional circuit-based voice transmission requires a bandwidth of 64kbps. With the development of 2.5G and 3G wireless networks, packet data services are introduced. Packet voice technology usually adopts a coding method less than 8Kbps. The actual average bandwidth of a network for packet voice tends to be as low as 2 to 3Kbps. Therefore, the packet voice technology can effectively save bandwidth, thereby reducing the networking and operating costs of the packet network, and, because the packet network has the characteristics of flexible networking, it has attracted more and more attention, so it can be widely used in wireless networks . [0003] In the system for implementing packet voice services, it is necessary to set up a unit for converting voice frame data and voice packet data to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L12/56
Inventor 路讴
Owner HUAWEI TECH CO LTD
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