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Wireless communication system, mobile station apparatus, base station apparatus, random access method and integrated circuit

  • US 9,549,418 B2
  • Filed: 02/05/2015
  • Issued: 01/17/2017
  • Est. Priority Date: 03/29/2010
  • Status: Active Grant
First Claim
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1. A terminal apparatus comprising:

  • a radio unit configured to;

    receive first component carrier setting information and second component carrier setting information, wherein;

    the first component carrier setting information includes information related to random access and includes information related to configuration of physical channel of a first component carrier,the second component carrier setting information does not include the information related to random access and includes information related to configuration of physical channel of one or more second component carriers,the information related to random access includes position information of random access channel, sequence information and information related to sequence group, andresources on each of a plurality of component carriers which include the first component carrier and the one or more second component carriers are allocated by the base station apparatus;

    in a case of receiving random access instruction information, set a random access preamble based on a preamble number included in the random access instruction information;

    otherwise set a random access preamble based on the information related to random access included in the first component carrier setting information;

    transmit the random access preamble on the first component carrier; and

    communicate with the base station apparatus by using one or more component carriers.

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