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Method and apparatus for time-aligning transmissions from multiple base stations in a CDMA communication system

  • US 7,433,321 B2
  • Filed: 04/15/2003
  • Issued: 10/07/2008
  • Est. Priority Date: 07/09/2001
  • Status: Expired due to Fees
First Claim
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1. A method in a communication system, comprising:

  • obtaining, at a radio network controller, an absolute time measurement and a relative time measurement for each of a plurality of transmitters in said communication system;

    determining, at the radio network controller, time difference information for each of the plurality of transmitters based on the obtained absolute time measurements and relative time measurements;

    reporting said determined time difference information corresponding to each of the plurality of transmitters to a terminal communicating in said communication system; and

    obtaining a new relative time measurement for a first transmitter if a time ambiguity for the first transmitter exceeds a threshold.

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