Method, apparatus and system for code conversion and velocity adaptation

Abstract

The embodiment of the invention discloses a method for code conversion and rate adaptation, including: recieving the request for building the connection of user data and the request for releasing the connection of user data; distributing the resources of code conversion and rate adaptation for the said request for building the connection of user data if the inserted code conversion and rate adaptation functions is detected; or, releasing the the resources of code conversion and rate adaptation occupied by the connection of user data for the said request for releasing the connection of user data. The embodiment of the invention also discloses a device and system for code conversion and rate adaptation. The invention realizes that the function entity of code conversion and rate adaptation is inserted by the integrated treatment rather than the original independent treatment, thus reducing the independent space ocuupied by the original function entity, and saving the space resource. The whole system has the low lost, lower power consumption and easy maintenance. The invention raises the service quality of user. The invention has simple project and easy realization without the new control and signalling interface.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a code conversion and rate adaptation method, device and system. Background technique [0002] GSM (Global System for Mobile communication, Global System for Mobile Communications) is the second generation digital cellular mobile communication system, and BSS (Base Station Subsystem, Base Station Subsystem) is the wireless access network of GSM. GSM network architecture and the position of BSS in GSM, you can refer to figure 1 shown. [0003] Traditionally, the NSS (Network SubSystem, Network Subsystem) side uses physical transmission at a rate of 64k bit / s to transmit user voice data, and the interface with the BSS is defined as an A interface. The BSS side adopts lower-rate speech coding methods such as RPE-LTP (Regular Pulse Excited Long Term Prediction, regular pulse excitation-long-term prediction, that is, full-rate FR), CELP (Code Excited Linear Pred...

AI Technical Summary

Problems solved by technology

[0010] 2. The TRAU function requires a physical chassis, and the operator needs to provide room space to accommodate the TRAU function; these chassis increase the power consumption of the system;

[0011] 3. User data needs to be exchanged and transferred multiple times, which not only reduces the QoS (Quality of Service) of user data, but also reduces the reliability of the entire network;

[0012] 4. TRAU is placed on the BSS side, so it cannot multiplex the voices of multiple users, and cannot use the sub-multiplexing function of TCSM (the voice data of at least 4 users can be multiplexed on one 64Kpbs), which wastes the resources of the transmission network

[0017] Since the code conversion and rate adaptation functions in the background technology cannot be embedded in the base station controller, so that when the available transmission resources of the transmission network are increasingly abundant and the processing capability of the base station controller is continuously enhanced, the physical independent entity The existing code conversion and rate adaptation functional entity occupies more space and resources, which increases the power consumption of the system; more importantly, it increases the number of user data exchanges and transfers, thereby reducing the number of data provided to users. quality of service

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