Communication system, mobile station, base station, response decision method, resource configuration decision method, and program

摘要

It is possible to solve the problem that a downstream control information amount is significantly increased if allocation information is periodically reported because no allocation method of a default E-DCH resource configuration is defined for a preamble signature. A base station and a mobile station decide a default resource configuration by using a total number of resource configurations or a value obtained from the total number.

主权项

1. A communications method, by a mobile station, comprising:
selecting a signature; transmitting a first signal including the selected signature; receiving a second signal including an acquisition indicator corresponding to the selected signature; calculating a default E-DCH resource index X as X=Dind mod Y, wherein the Dind is an index of the selected signature and the Y is a total number of E-DCH resource configurations; controlling an E-DCH transmission using a first resource corresponding to the default E-DCH resource index X, in a case where the acquisition indicator is positive.