×

System and method using primary and secondary synchronization codes during cell search

  • US 7,693,123 B2
  • Filed: 11/27/2002
  • Issued: 04/06/2010
  • Est. Priority Date: 11/29/2001
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for cell searching for time division duplex (TDD) communication, the method comprising:

  • detecting a primary synchronization code (PSC) transmitted in one of a plurality of timeslots in a subframe, the PSC being common to all Node Bs and being transmitted with a Node B-specific cyclic code shift by each of the Node Bs; and

    detecting a secondary synchronization code (SSC) transmitted in one of the timeslots in the subframe based on the detected PSC, the SSC being unique to a specific group of Node Bs;

    wherein a chin separation defined by the cyclic code shift is equal to a PSC chip length divided by the number of cells.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×