WIRELESS COMMUNICATION SYSTEM, MOBILE STATION APPARATUS, BASE STATION APPARATUS, RANDOM ACCESS METHOD AND INTEGRATED CIRCUIT

摘要

The present invention enables random access which does not cause a load on a mobile station apparatus in an Advanced-EUTRA system. A wireless communication system in which a base station apparatus allocates a plurality of component carriers to a mobile station apparatus, and the base station apparatus and the mobile station apparatus perform communication via the component carriers, wherein the base station apparatus notifies the mobile station apparatus of allocation information of component carriers, setting information of a component carrier including information on random access, and setting information of a component carrier not including the information on random access; and the mobile station apparatus receives the allocation information and the setting information, and executes a random access procedure only in the component carrier in which the information on random access is included in the setting information of the component carrier, among the plurality of component carriers allocated from the base station apparatus.

主权项

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