FIELD: electronics.
SUBSTANCE: invention relates to determination of control channel search space. For this following steps are provided: determination of number of EPDCCH sets used for transmitting improved physical downlink control channel EPDCCH; determination in accordance with numbers of EPDCCH sets shifts of search space locations corresponding to EPDCCH sets; and determination in accordance with search spaces location shifts corresponding to EPDCCH sets, search spaces, corresponding to EPDCCH sets. By grouping and numbering of frequency-time resources of EPDCCH and determining different shifts of different search spaces of EPDCCH in accordance with numbers and different identification data of cell or different identifiers of UE probability of conflict of control channel search space can be decreased.
EFFECT: technical result is maximizing frequency-time resources control channels in case of multiple users and improvement of efficiency of communication.
8 cl, 11 dwg
