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Radio with synchronization apparatus and method therefore

  • US 6,366,786 B1
  • Filed: 03/08/1999
  • Issued: 04/02/2002
  • Est. Priority Date: 04/24/1998
  • Status: Expired due to Term
First Claim
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1. A radio having time synchronization, the radio comprising:

  • a receptor for receiving a timing signal from another radio;

    a timing unit providing a timing signal within the radio;

    a control unit coupled to the timing unit and the receptor, wherein the control unit provides a timing offset value F based on the timing signal from the another radio;

    a memory coupled to the control unit for receiving a series of instructions I(i) from the control unit, the instructions I(i) comprising operand instructions O(i) for controlling operations of the radio and time of execution instructions T(i) specifying when each O(i) is to be executed, where i is an index having values 0, . . . , N, . . . , M;

    wherein, the control unit determines a timing unit correction value C=f(B,F) where B is a completion time of instruction I(N−

    1), F is the timing offset value and C is a value necessary to bring the timing unit into predetermined relationship with a timing unit of the another radio, and wherein the control unit includes in the instructions I(i) an instruction I(N) embodying an operand O(N) for execution at time T(N), the operand O(N) causing the correction value C to be loaded into the timing unit.

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