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Random access retransmission procedure

  • US 10,708,953 B2
  • Filed: 12/27/2016
  • Issued: 07/07/2020
  • Est. Priority Date: 04/18/2016
  • Status: Active Grant
First Claim
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1. A method of wireless communication between a scheduling entity and a set of one or more scheduled entities in a wireless communication network, the method comprising:

  • receiving a random access preamble message during a contention-based random access procedure at the scheduling entity from a scheduled entity of the set of one or more scheduled entities;

    determining a total number of retransmissions of a random access response message;

    splitting random access response information of a first instance of the random accessresponse message into a first information block and a second information block to produce a first code word based on the first information block and a second code word based on the second information block, wherein the first information block and the second information block each comprise different respective information bits of the random access response information;

    including the total number of retransmissions within each of the first code word and the second code word;

    transmitting the random access response message comprising the first code and the second code word from the scheduling entity to the scheduled entity in response to receiving the random access preamble message, wherein the random access response message further comprises an indication of a number of subframes to be used to subsequently retransmit the random access response message; and

    automatically retransmitting the random access response message from the scheduling entity to the scheduled entity each of the total number of retransmissions utilizing the number of subframes.

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