Patent ID: 8824426
Filing Date: 2014-09-02
Classification: H04L,H04W

Abstract:
1. A method for transmitting Physical Downlink Control Channel, PDCCH, information, comprising: determining, by a base station, different search spaces corresponding to different PDCCHs according to Carrier Indicator, CI, information; and transmitting, by the base station, the different PDCCHs to a corresponding user equipment in the corresponding search spaces, wherein determining by the base station the different search spaces corresponding to the different PDCCHs according to the CI information comprises: determining, by the base station, starting parameters of the search spaces corresponding to the respective PDCCHs according to the CI information of the respective PDCCHs; and determining, by the base station, Control Channel Element, CCE, information according to the starting parameters of the search spaces, and wherein the base station determines the starting parameters of the search spaces corresponding to the respective PDCCHs according to the CI information of the respective PDCCHs in the formula of: wherein Y n p represents an integer which is set in a system, Y A=39827, D=65537, k=└n n or wherein determining by the base station the different search spaces corresponding to the different PDCCHs according to the CI information comprises: determining, by the base station, starting parameters of the search spaces corresponding to the respective PDCCHs; and determining, by the base station, CCE information corresponding to the respective PDCCHs according to the CI information and the starting parameters of the search spaces of the respective PDCCHs, and wherein the base station determines the CCE information corresponding to the respective PDCCHs according to the CI information and the starting parameters of the search spaces of the respective PDCCHs in the formula of: wherein Y n p represents an integer which is set in a system, i=0, 1, . . . , L−1, m=0, 1, . . . , M L represents an aggregation level, and M or wherein determining by the base station the different search spaces corresponding to the different PDCCHs according to the CI information comprises: determining, by the base station, starting parameters of the search spaces corresponding to the respective PDCCHs according to the CI information of the respective PDCCHs; and determining, by the base station, CCE information corresponding to the respective PDCCHs according to the CI information and the starting parameters of the search spaces of the respective PDCCHs, and wherein the base station determines the starting parameters of the search spaces corresponding to the respective PDCCHs according to the CI information of the respective PDCCHs in the formula of: wherein Y n p represents an integer which is set in a system, Y A=39827, D=65537, k=└n n the base station determines the CCE information corresponding to the respective PDCCHs according to the CI information and the starting parameters of the search spaces of the respective PDCCHs in the formula of: wherein Y n p represents an integer which is set in a system, i=0, 1, . . . , L−1, m=0, 1, . . . , M L represents an aggregation level, and M