The invention discloses a frequency deviation compensation method, which comprises the following steps: a base station for receiving uplink signals to frequency offset estimation, frequency offset estimation results obtained, according to the estimation results for the pre deviation compensation downlink signal frequency; terminal detection frequency downlink signal frequency offset compensation received after their own according to the frequency, the downlink signal detected to determine the firing frequency of uplink signal, transmit uplink signal to the frequency determined by the terminal side; by using the same method of pre frequency offset compensation; the invention also discloses a frequency deviation compensation device, the device comprises a frequency offset estimation module, pre frequency offset compensation module inspection, frequency and frequency modulation. The invention can effectively reduce the uplink frequency offset, offset compensation on the downlink frequency, not only reduce the relative frequency between the base station and the terminal side, and reduce the frequency of the base station when switching between the terminal jump variables, so that the base station and the terminal can correctly receive signal correction, to guarantee the quality of communication.
【技术实现步骤摘要】
本专利技术涉及频偏补偿技术，尤其是指一种频偏补偿的方法和装置。
技术介绍
码分多址(CDMA，Code Division Multiple Access)具有容量大、抗多径衰落能力强和频带利用率高等优点，已成为第三代移动通信无线传输技术的主流，尤其是时分同步码分多址(TD-SCDMA，Time Division-Duplex SynchronousCode Division Multiple Access)和宽带码分多址(WCDMA，Wideband CodeDivision Multiple Access)系统倍受广大用户的青睐。 随着高速公路的陆续修建，铁路的不断提速，高速交通运输已经大范围地开始应用，并大步向前发展，随之，在高速列车上进行通信业务的终端也越来越多，这就要求网络能提供良好的通信服务质量。 在移动通信系统中，由于终端在发送消息信号时在移动，使得基站相对于终端处于运动状态。而当接收机和发送机处在一定速率的运动状态时，接收到的信号会有多普勒频移，特别是高速场景下，这种频移尤其明显。多普勒频移会影响上行接入成功率、切换成功率，还会对系统的容量和覆盖产生...
【技术保护点】
一种频偏补偿方法，其特征在于，该方法包括以下步骤： 基站对接收到的终端上行信号进行频偏估计，根据频偏估计结果对所述终端的下行信号进行预频偏补偿。
【技术特征摘要】
【专利技术属性】
技术研发人员：李萍，江海，
申请(专利权)人：中兴通讯股份有限公司，
类型：发明
国别省市：94[中国|深圳]
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