CONTROL CHANNELS FOR WIRELESS COMMUNICATION

摘要

A method for configuring a search space within which a mobile terminal performs blind decoding attempts for potential control message candidates which may be transmitted by a base station. The frequency domain resource for which the terminal performs a blind decoding attempt for a given candidate message is determined by a pseudo-random selection (known by both terminal and network) from a pre-determined set of possible resources. A pre-determined set of resources can be different for each candidate. In one embodiment the set of resources is configured by the network for each terminal and each candidate. The method may be applied for example to ePDCCH of an LTE-A wireless communication system.

主权项

1. A wireless communication method in which a wireless network transmits a control channel message which is received by a terminal, the method comprising,
on the network side:
configuring a respective search space in the frequency domain separately for each of a plurality of candidates for the control channel message;making a selection of a location, using a pseudo-random function, within the respective search space so configured for at least one of the plurality of candidates;determining one of the plurality of candidates to use for transmission of a control channel message, andtransmitting a control channel message at the selected location for the candidate so determined; and on the terminal side:
decoding a control channel message corresponding to each of one or more of the plurality of candidates by making a selection of a set of one or more locations for blind decoding within each of the respective search spaces, using the same pseudo-random function used for the selection of the location for the corresponding candidate on the network side.