Spread spectrum communication system

Abstract

The present invention disclosed an apparatus about spread spectrum communication system, including Base Station Controller, centralized baseband system and RF system. The stated centralized baseband system is connected with the stated Base Station Controller through special interface; the stated centralized baseband system includes: a minimum of one baseband subsystem, clock subsystem that provides the clock signal for the stated baseband subsystem; the stated baseband subsystem is connected with RF system through internal interface. Since the invention partly centralizes the baseband system of several base stations and reduces the quantity of base station and the interface between base station and base station controller, the centralized baseband system and RF system are completely independent which is convenient for base station deployment; RF system is more close to the antenna and feeder which reduces the loss of antenna and feeder and the power requirement of base station; the base station can be installed with the base station controller at the same spot without the geographic area of RF system, which saves operator's cost and improves the maintainability.

Description

technical field [0001] The present invention relates to the field of wireless communication, and more specifically relates to a spread spectrum communication system which realizes the separation of the baseband part and the radio frequency part of the base station to form a ring network. Background technique [0002] Spread spectrum communication system can be divided into many kinds according to different wireless modulation and demodulation technologies, such as IS95 CDMA, cdma 2000, WCDMA, TD-SCDMA and so on. Spread spectrum communication fixed side equipment consists of two parts, a base station controller (BSC) or central node (RNC) and several base stations (BTS) or nodes (Node B). The interface between the base station and the base station controller is called Abis interface or IuB interface. There is one such interface between each base station and the base station controller. Multiple base stations have multiple interfaces. The base stations communicate with each ot...

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the disadvantages of poor maintainability and high cost of the existing spread spectrum communication system, and propose a spread spectrum communication system, which is convenient to construct and can meet the needs of baseband to radio frequency transmission, high real-time performance, high Network structure for transmission efficiency

Images