Method for grouping voice data packet transmission and its system

A technology of packet voice and transmission method, applied in the direction of digital transmission system, transmission system, data exchange network, etc., can solve the problems of waste, system burden, and not distinguishing different sub-streams of AMR, and achieve the effect of saving resources and reducing burden

Inactive Publication Date: 2008-04-02
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] (1) Establishing multiple RBs will bring more resource requirements and burden the system
[0014] (2) Some implementations of High Speed ​​Packet Access (HSPA for short) channels may not support multiple RB bearers, therefore, they may not be able to be carried in the mainstream bearer HSPA channels of VoIP services in the future
[0019] (1) There is no distinction between different sub-flows of AMR, so different sub-flows cannot be protected by different CRCs
[0020] (2) For VoIP services, the 24-bit CRC is a bit wasteful, because the circuit switched domain (Circuit Switched Domain, referred to as "CS") voice service uses 12-bit CRC, bit error rate (Bit Error Rate, referred to as "BER") is already below 10 -6 up

Method used

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  • Method for grouping voice data packet transmission and its system
  • Method for grouping voice data packet transmission and its system

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Embodiment Construction

[0068] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0069] In the present invention, the sending end generates a CRC check field according to one of the IP header, UDP header, RTP header, CMR, ToC, and A subflow in the packet voice data packet or any combination thereof, and the generated check field Added to this packet and sent. After receiving the data packet, the receiving end verifies the content based on the verification field generated by the sending end according to the verification field. If the verification of the receiving end is successful, the data packet is received, otherwise the data packet is discarded. . The packet voice data packets may be carried by a Wideband Code Division Multiple Access ("WCDMA") network, a Long Term Evolution ("LTE") network, or other networks.

[0070] The first embodimen...

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PUM

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Abstract

The invention discloses a transmission method and system of group speech data package, in order to increase the transmission efficiency of VoIP service. The sending end generates CRC verifying field based on one of IP packet header, UDP packet header, RTP packet header, CMR, ToC, and a substream of VoIP data package to be sent or any combination. The said verifying field is added to the said data package to be sent. The receiving end verifies only partial content of the data package, therefore the number of retransmission due to verity error is greatly reduced. For the voice coded by AMR, the length of CRC verifying field is contracted to 12 bits, under the precondition of satisfying the transmission demand, the required resource for transmitting the verifying field is reduced and the system capacity is furthermore increased.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to packet voice technology. Background technique [0002] VoIP (Voice over Internet Protocol) is a technology based on Internet Protocol (Internet Protocol, referred to as "IP") telephony and launching corresponding value-added services. The biggest advantage of VoIP is that it can widely adopt the environment of Internet and global IP interconnection, and provide more and better services than traditional services. VoIP can cheaply transmit voice, fax, video, and data services on IP networks, such as unified messaging, virtual phone, virtual voice / fax mailbox, directory service, Internet call center, Internet call management, video conference, e-commerce , Fax storage and forwarding and storage and forwarding of various information, etc. IP telephony is a voice service provided by VoIP technology. [0003] Traditionally, voice is transmitted through a circuit domain, and a t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04Q7/22H04L12/725
Inventor 于江布雷尔·弗兰克谢超唯张岩强
Owner HUAWEI TECH CO LTD
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