BASE STATION APPARATUS, MOBILE STATION APPARATUS, MOBILE COMMUNICATION SYSTEM, COMMUNICATION METHOD, CONTROL PROGRAM, AND INTEGRATED CIRCUIT

摘要

A mobile station (MS) obtains a parameter, performs transmission of a preamble, and sets a counter incremented based on transmission of the preamble. The MS is able to indicate a random access problem corresponding to one transmission timing cell group in a case where the counter reaches the parameter +1 and the transmission of the preamble is performed on the one transmission timing cell group, where the one transmission timing cell group being one of the plurality of transmission timing cell groups, and the MS is able to not indicate a random access problem corresponding to another transmission timing cell group in a case where the counter reaches the parameter +1 and the transmission of the preamble is performed on the another transmission timing cell group, where the another transmission timing cell group being one of the plurality of transmission timing cell groups.

主权项

1. A mobile station apparatus configured and/or programmed to communicate with a base station apparatus by using a plurality of cells grouped into a plurality of transmission timing cell groups, the mobile station apparatus comprising:
an obtaining circuitry configured and/or programmed to obtain a parameter; a transmission circuitry configured and/or programmed to perform transmission of a preamble; and a control circuitry configured and/or programmed to set a counter incremented based on transmission of the preamble, wherein the control circuitry is further configured and/or programmed to: indicate a random access problem corresponding to one transmission timing cell group in a case where the counter reaches the parameter +1 and the transmission of the preamble is performed on the one transmission timing cell group, the one transmission timing cell group being one of the plurality of transmission timing cell groups; and not indicate a random access problem corresponding to another transmission timing cell group in a case where the counter reaches the parameter +1 and the transmission of the preamble is performed on the another transmission timing cell group, the another transmission timing cell group being one of the plurality of transmission timing cell groups.