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System and method to improve uplink coverage in multi-carrier systems

  • US 8,477,737 B2
  • Filed: 03/26/2008
  • Issued: 07/02/2013
  • Est. Priority Date: 03/26/2008
  • Status: Expired due to Fees
First Claim
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1. A method of uplink carrier handoff in a multiple carrier communication system, comprising:

  • receiving a measurement report from a mobile providing information regarding path loss as measured at the mobile for one of the multiple carriers on the downlink, a serving carrier being the carrier over which the mobile communicates on the uplink; and

    selectively sending an instruction to the mobile to handoff to a non-serving one of the multiple carriers depending on whether a threshold requirement has been met, the threshold requirement configured to create a first coverage zone for a carrier of a first loading capacity and a second coverage zone for a carrier of a second loading capacity, the meeting of the threshold requirement being based on the received measurement report and a loading capacity of the serving carrier of the mobile, and each of the multiple carriers having an associated threshold requirement and are configured to allow a different load, the loading capacity of the serving carrier having been selected from a plurality of loading capacities.

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