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System and method for providing collision-avoided physical downlink control channel resource allocation in a network environment

  • US 9,686,798 B1
  • Filed: 01/14/2015
  • Issued: 06/20/2017
  • Est. Priority Date: 01/14/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • ranking a plurality of downlink control information (DCI) messages according to a first rank criterion;

    ranking a plurality of allowable resource sets for each ranked DCI message according to a second rank criterion, wherein ranking according to the second rank criterion further comprises at least one of;

    ranking, for each ranked DCI message, allowable resource sets for a particular ranked DCI message in ascending order according to a number of control channel elements (CCEs) required in each allowable resource set for the particular ranked DCI message; and

    for any corresponding allowable resource sets for the particular ranked DCI message having a same number of control channel elements (CCEs);

    ranking the corresponding allowable resource sets according to an index of a starting CCE for each corresponding allowable resource set or ranking the corresponding allowable resource sets randomly; and

    allocating resources for each ranked DCI message based, at least in part, on whether particular resources, which are to be allocated for a particular ranked DCI message, are collided, at least in part, with previously allocated resources for one or more other DCI messages.

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