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Method implemented in a user equipment

  • US 9,247,563 B2
  • Filed: 12/19/2012
  • Issued: 01/26/2016
  • Est. Priority Date: 12/23/2011
  • Status: Active Grant
First Claim
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1. A method implemented in a user equipment UE for single carrier frequency division multiple access SC-FDMA within a wireless system comprising:

  • receiving, at the UE, an assignment of a first type of uplink scheduling request resource comprising a first plurality of subcarriers of the wireless system;

    detecting, at the UE, a change in activity of the UE, wherein the change in activity is related to one or more applications resident on the UE;

    determining, at the UE and in response to the detected change in activity, that a change in uplink scheduling request resource type should be made;

    upon determining that a change in scheduling request resource type should be made, selecting, at the UE, a second type of uplink scheduling request resource comprising a second plurality of subcarriers for transmission of scheduling requests, wherein one of the first type or the second type is an unscheduled shared SC-FDMA resource assigned to a plurality of UEs of the wireless system and an other of the first type or the second type is a dedicated SC-FDMA resource assigned to only the UE, wherein the second plurality of subcarriers are located within a same system bandwidth as the first plurality of subcarriers; and

    transmitting a signal comprising an encoded user ID on subcarriers used for the unscheduled shared SC-FDMA resource.

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