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    • 44. 发明申请
    • SYNCHRONIZATION SYSTEM AND SYNCHRONIZING METHOD FOR PLURALITY OF BASE STATIONS AND MOBILE STATION IN A FORWARD LINK WIRELESS TRANSMISSION
    • 无线传输中的基站和移动台的同步系统和同步方法
    • US20100157885A1
    • 2010-06-24
    • US11997869
    • 2006-08-22
    • Kenji KoyanagiYoshikazu KakuraJinsock LeeNahoko Kuroda
    • Kenji KoyanagiYoshikazu KakuraJinsock LeeNahoko Kuroda
    • H04W40/00H04J3/06
    • H04W36/0005H04W36/30H04W56/001H04W56/0045
    • There is provided a radio communication system in which a mobile station which has decided to switch a base station can immediately be synchronized with the base station to which switching is to be made. Each of the base stations creates a synchronization signal for the mobile station to synchronize with the base station from an upstream pilot signal received from the mobile station, creates upstream propagation quality information from the upstream pilot signal, and creates a downstream control signal including the synchronization information and the upstream propagation quality information, and transmits them. The mobile stations creates an upstream pilot signal, transmits the signal, receives a signal including a downstream control signal from each of the base stations, extracts the upstream propagation quality and information on synchronization with the base stations from the received downstream control signal, and selects an optimal base station from the received upstream propagation quality as a new current base station. If the selected base station is different from the current base station, the transmission timing of the upstream pilot signal is modified to the transmission timing based on the synchronization information extracted from the downstream control signal of the selected base station and transmitted.
    • 提供了一种无线电通信系统,其中决定切换基站的移动台可以立即与要进行切换的基站同步。 每个基站创建一个同步信号,用于移动台根据从移动站接收的上行导频信号与基站同步,从上游导频信号创建上行传播质量信息,并创建包括同步的下行控制信号 信息和上游传播质量信息,并传输它们。 移动站创建上行导频信号,发送该信号,从每个基站接收包括下行控制信号的信号,从接收到的下游控制信号中提取上行传播质量和与基站同步的信息,并选择 从接收到的上游传播质量的最佳基站作为新的当前基站。 如果所选择的基站与当前基站不同,则基于从所选择的基站的下游控制信号提取的同步信息将上行导频信号的发送定时修改为发送定时,并发送。