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Managing transmission power for hybrid-ARQ groups

  • US 9,307,535 B1
  • Filed: 01/02/2014
  • Issued: 04/05/2016
  • Est. Priority Date: 01/02/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • in a cellular radio access network (RAN) that serves a plurality of wireless communication devices (WCDs), grouping the WCDs into respective Hybrid-ARQ (HARQ) groups based on channel quality reported respectively by the WCDs for downlink communication from the RAN to the WCDs, wherein grouping the WCDs into the respective HARQ groups based on channel quality reported respectively by the WCDs for downlink communication from the RAN to the WCDs comprises (a) assigning the first group of WCDs to the first HARQ group in response to the first group of WCDs having reported channel quality similar to each other, and (b) assigning the second group of WCDs to the second HARQ group in response to the second group of WCDs having reported channel quality similar to each other;

    differentially allocating HARQ transmission power to the respective HARQ groups based on the channel quality reported by the WCDs of each group; and

    transmitting HARQ messaging to each HARQ group of WCDs using the differential allocation of transmission power,whereby transmission power for HARQ messaging to a first one of the HARQ groups differs from transmission power for HARQ messaging to a second one of the HARQ groups.

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