Synchronization of timing advance and deviation

Synchronization of timing advance and deviation

  • CN 1,881,844 A
  • Filed: 04/05/2001
  • Published: 12/20/2006
  • Est. Priority Date: 04/06/2000
  • Status: Active Grant
First Claim
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1. base station that is used for a communication system, described communication system are to support wireless two-way communication between portable terminal and the base station by the time frame format with succession identification system time frame, and described base station comprises:

  • One reflector is in order to the communication data of the transformatization optionally described portable terminal in the system wireless frame;

    One receiver is in order to receive from the described communications of Mobile Terminals data in the system wireless frame;

    A time advance commands signal generator, described time advance commands signal generator is in order to provide the time advance commands signal to be sent to selected portable terminal;

    Be used for measuring the device at the received timing offset that portable terminal sends of specific radio frames, wherein said communication data is to be received from a selected portable terminal;

    Described time advance commands signal generator is in order to produce the time advance commands signal, and wherein this time advance commands signal comprises;

    The timing advance data that the timing offset value that is measured in the specific radio frames according to selected mobile phone is calculated;

    AndThe frame number that continues is used to specify a specific radio frames and regularly adjusts so that carry out one by selected portable terminal;

    AndDescribed measurement mechanism is used for measuring the timing offset from the received communication data of selected portable terminal, wherein, a timing advance command will signal is sent to this selected portable terminal in the particular frame in the frame number that continues of the time advance commands signal that is sent.

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