SEARCH SPACE FOR EPDCCH CONTROL INFORMATION IN AN OFDM-BASED MOBILE COMMUNICATION SYSTEM

摘要

The present invention relates to a method for receiving control information within a subframe of a multi-carrier communication system supporting carrier aggregation, the method comprising the following steps performed at a receiving node: performing a blind detection for the control information within a search space by means of a first search pattern, wherein the first search pattern is one of a plurality of search patterns, each of the plurality of search patterns comprising a plurality of candidates distributed on any of a plurality of aggregation levels, and wherein the plurality of search patterns further comprises a second search pattern whose candidates are non-overlapping the candidates of the first search pattern on the same aggregation levels.

主权项

1. A transmitting apparatus comprising:
a mapper which, in operation, maps downlink control information to a first search space or to a second search space, the first search space including one or a plurality of first physical downlink control channel (PDCCH) candidates for each of a plurality of aggregation levels, the second search space including one or a plurality of second PDCCH candidates for each of the plurality of aggregation levels and further including at least one other second PDCCH candidate for an aggregation level higher than any one of the plurality of aggregation levels, each of the first and the second PDCCH candidates being composed of a control channel element (CCE) or a plurality of aggregated CCEs of its corresponding aggregation level; and a transmitter which, in operation, transmits a signal including the downlink control information that is mapped to the first search space or the second search space.