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Wireless uplink resource allocation

  • US 10,454,734 B2
  • Filed: 04/12/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 06/15/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, by a wireless device, configuration parameters of a plurality of cells comprising;

    a primary cell that is not configured with scheduling request (SR) resources; and

    a secondary cell that is configured with the SR resources and that is in a secondary timing advance group (sTAG);

    transmitting, via the SR resources, an SR associated with an SR process;

    initiating a random access procedure based on;

    the SR process being pending in a subframe;

    no uplink data channel resource being available for transmission in the subframe; and

    a time alignment timer associated with the sTAG not running in the subframe; and

    transmitting, by the wireless device, a random access preamble.

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