Method and apparatus for negotiating vocoder mode in CDMA system

Abstract

The invention discloses a method and a device for negotiating modes for a voice coder in a CDMA system. The method comprises the following steps: S1. a base station receives calling message or the paging response message sent by a mobile station; and S2. if the mobile station supports the fourth generation of the voice coder mode, the load of a current cell is larger than a preset threshold value, and the base station designates the mobile station to establish the fourth generation of the voice coder calling. The device comprises the base station, wherein the base station comprises an acquisition unit used for acquiring the load of the current cell, a recording unit used for recording the deployable threshold value, a comparing unit used for acquiring the compared result of the load of the current cell and the preset threshold value, and a calling establishing unit used for designating the mobile station to establish the fourth generation of the voice coder mode according to the compared result. The method and the device select whether the fourth generation of the voice coder mode is adopted according to the load of the cell, thereby controlling the consumption of the fourth generation of the voice coder mode relative to the voice coder of a medium gateway, and guaranteeing the smooth scale expansion of the system.

Description

technical field [0001] The present invention relates to a cellular code division multiple access (CDMA) system, in particular to a method and device for negotiating the vocoder mode in the code division multiple access system. Background technique [0002] The CDMA2000 system is going all-IP. The advantages of the all-IP architecture are cost savings, improved voice quality, and a clear path for technological evolution. figure 1 It is the network architecture of the all-IP CDMA2000 system. The base station subsystem (BSS) is connected to the core network through IP; the core network adopts the separation of call control and bearer, and the mobile switching center emulation (MSCe) is responsible for calling For control, the media gateway (MediaGateway, MGW) provides media control functions, and provides transmission resources, and has a media stream manipulation function, and the vocoder resources are located in the MGW. In the above architecture, two concepts are introduced...

AI Technical Summary

Problems solved by technology

However, this approach will have a great impact on the vocoder resources in the MGW. Before 4GV is put into commercial use, the operator needs to double the capacity of the vocoder in the MGW, which increases the cost of the operator and increases Difficulty commercializing new technologies

Images