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Aspects to support LTE-A downlink hi-order MIMO

  • US 8,315,225 B2
  • Filed: 09/21/2009
  • Issued: 11/20/2012
  • Est. Priority Date: 09/22/2008
  • Status: Active Grant
First Claim
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1. A method of operation of a MIMO transmitter, in a cellular network supporting both legacy mobile terminals and next-generation mobile terminals, said method comprising:

  • identifying a plurality of resource blocks within a communication channel of said cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency band;

    periodically transmitting a first set of reference signals (RSs) for said legacy mobile terminals at a first set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a first period; and

    periodically transmitting a second set of RSs for said next-generation mobile terminals at a second set of time and frequency resources within said plurality of resource blocks by said MIMO transmitter using a second period, wherein the second period is configured to be different from the first period.

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