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A method for loading and transferring packet voice

A technology combining packetized voice and transmission format, applied in transmission systems, digital transmission systems, and multiple use of transmission paths. The effect of transmission efficiency

Active Publication Date: 2007-08-01
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014]The head with the highest importance cannot occupy the bandwidth of voice data with low importance, resulting in a waste of bandwidth

Method used

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  • A method for loading and transferring packet voice
  • A method for loading and transferring packet voice
  • A method for loading and transferring packet voice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: The work flow can be briefly described as: after the VoIP data stream transmitted from the SGSN reaches the RNC, the RNC decomposes the message into four categories: Class A, Class B, Class C and Class Header, where the Class Header is IP / UDP / RTP / AMR header class, and perform header compression, RNC divides the voice data into Class A / B / C according to the configuration information carried by the RAB assignment (Assignment) message from the SGSN or other messages; then These four categories are transmitted to the UE using the UEP method. After receiving various types of data, the UE decompresses the Class Header, then combines the four types into one IP voice packet, and sends it to the upper layer protocol stack.

[0046] The processing process of the data plane in the RNC is shown in Figure 4. In this scheme, a decomposer (Decomposer) is added to the PDCP layer of the RNC to decompose the packet voice data stream configured to use UEP into Class A, Class...

Embodiment 2

[0068] Embodiment two: the difference between this embodiment and embodiment one is that RNC divides the VoIP data flow from SGSN into three classes: Class A, Class B, and Class C, wherein Class A is the header and The voice data with the highest importance, Class B / C is the voice data with lower importance, and the specific definition method is: Class B / C is consistent with the definition of the first embodiment and the prior art, and Class A is the Class in the first embodiment The sum of the lengths of A and Class Header is shown in Table 3:

[0069] data frame type

AMR

encoding type

total length

(bits)

Class A

(bits)

Class B

(bits)

Class C

(bits)

0

4,75

425

372

53

0

1

5,15

433

379

54

0

2

5,90

448

385

63

0

3

6,70

464

388

76

0 ...

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Abstract

The disclosed loading and transmitting method for group speech comprises: the transmitter divides group speech message into some classes as different importance, selects transmission format combined set for different conditions to transmit every-class data with individual channel, and protects data by unequal error protection strategy; the receiver combines received data to generate group speech message. This invention improves transmission efficiency, reduces bandwidth waste, and fit to 3G wireless communication network.

Description

technical field [0001] The invention relates to the technical field of voice communication and wireless communication, in particular to a method for bearing and transmitting packet voice. Background technique [0002] Packet voice (Voice over IP, VoIP) technology realizes the transmission of voice data through the transmission of compressed voice packets, which occupies less resources, and the outstanding advantages brought about by it are that the cost is very low and the price is cheap, so it is considered to have great commercial prospects , and is used in many fields, especially in the third generation (3G) wireless communication system, including wideband code division multiple access (WCDMA) using general packet radio service (General Packet Radio Service, GPRS) )system. [0003] A network architecture diagram of a WCDMA system is shown in FIG. 1, which consists of a user equipment (User Equipment, UE) 101, a radio access network (Radio Access Network, RAN) 102, a cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L1/00H04L5/00
Inventor 阳建军庄宏成
Owner XFUSION DIGITAL TECH CO LTD
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