×

Cross-scheduling for random access response

  • US 9,642,161 B2
  • Filed: 05/11/2011
  • Issued: 05/02/2017
  • Est. Priority Date: 05/11/2011
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus, comprising:

  • at least one processor; and

    at least one memory including computer program code;

    in which the at least one memory and the computer program code are configured with the at least one processor to cause the apparatus at least to;

    perform a random access procedure in carrier aggregation in which, upon reception of a transmission of a previously assigned preamble on one secondary cell of a plurality of component carriers or cells, a downlink random access response is sent and scheduled by a control channel addressed to a random access identifier on a primary component carrier or primary cell of a plurality of component carriers or cells;

    the random access response indicating a timing advance and identifying a group of component carriers or cells, to which the timing advance applies to all component carriers or cells within the group; and

    thereafteroperate a wireless radio on the identified group of component carriers or cells synchronous with the timing advance.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×