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Method for transmitting reference signals

  • US 8,743,813 B2
  • Filed: 03/29/2012
  • Issued: 06/03/2014
  • Est. Priority Date: 02/01/2009
  • Status: Active Grant
First Claim
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1. A method of reference signal transmission in resource blocks (RBs) supporting multiple antenna port transmission in a wireless communication system, comprising:

  • determining a first and a second mutually exclusive sets of RBs, at least one broadcast channel (BCH) being provided in RBs belonging to said first set of RBs;

    transmitting a number of reference signals (RSes) only in at least one RB belonging to said second set of RBs when a conflict between transmitting said number of RSes and providing said broadcast channel is detected, wherein each RB comprises at least one resource elements (REs);

    wherein the conflict between transmitting said number of RSes and providing said broadcast channel comprises;

    REs to be used for transmitting said number of RSes and REs used for providing said broadcast channel overlap;

    wherein said RBs supporting multiple antenna port transmission are transmitted in subframes (SFs) supporting multiple antenna port transmission; and

    wherein said number of RSes are transmitted only in a subset of subframes which do not comprise the RBs belonging to said first set of RBs, wherein said number of RSes are transmitted in a same slot of said subset of subframes, and wherein said number of RSes are transmitted in every Mth RB in said same slot, where M is an integer that is greater than or equal to one.

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