Communications method, base station, and mobile terminal

摘要

A mobile terminal monitors a candidate set (Candidate Set) of L1/L2 control information. However, when a base station carries out signaling of a candidate set to each of all mobile terminals, the load on the base station from the viewpoint of radio resources becomes large. Furthermore, the amount of processing in performing a blind detection of each mobile terminal also increases.;Therefore, the base station carries out a process of performing grouping of the above-mentioned mobile terminal which is a destination of transmission of the above-mentioned L1/L2 control signal, a process of allocating an L1/L2 control signal to be transmitted to a predetermined mobile terminal to the control channel elements included in a group to which the predetermined mobile terminal is belonging on the basis of attribution information about the mobile terminal. The mobile terminal receives a downlink physical control channel, and also performs a blind detection process on the candidate set corresponding to the group to which the mobile terminal is belonging and performs a process of reading the L1/L2 control signal from the control channel elements included in the candidate set.

主权项

1. A communications method comprising:
creating a group of a plurality of mobile terminals, the mobile terminals carrying out a detection of a candidate set including control channel elements which are used for transmission of an L1/L2 control signal from a base station, the base station carrying out communications using a plurality of frequency bands, each of which is one of a plurality of regions into which one of said plurality of frequency bands is divided, where one of the plurality of mobile terminals is a destination of transmission of said L1/L2 control signal on a basis of attribution information of said one of the plurality of mobile terminals; and performing a detection process on said candidate set corresponding to the group of the plurality of mobile terminals, and reading said L1/L2 control signal from the control channel elements included in said candidate set; adding a load on the group of the plurality of mobile terminals in response to a variation occurring in a number of acknowledgments/non-acknowledgements received by the group of the plurality of mobile terminals; and wherein said control channel elements are of a non-uniform size.