Downlink control information transmitting method, detecting method, base station and user equipment
First Claim
1. A method for detecting downlink control information, comprising:
- a user equipment (UE) detecting downlink control information beared by an enhanced physical downlink control channel (ePDCCH) in a resource block according to a resource block set and pre-defined information configured by a base station, wherein the pre-defined information includes;
enhanced control channel unit information detected in the resource block set, a mapping mode of the ePDCCH; and
the pre-defined information further at least includes one of the followings;
sub-carrier position information detected in the resource block set, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set, and a downlink control information format;
wherein the mapping mode of the ePDCCH comprises continuous mapping and/or discrete mapping;
wherein ePDCCHs of the same aggregation level are configured to be of the same mapping mode;
wherein according to the size of a resource corresponding to an aggregation level, and according to an ascending order, all aggregation levels are ranked as N1, N2, . . . Np, where p is a positive integer, wherein ePDCCHs corresponding to the aggregation levels N1, N2, . . . Nq are configured to be continuous mapping, and ePDCCHs corresponding to the aggregation levels N(q+1) . . . Np are configured to be discrete mapping, and q is a positive integer;
wherein q is configured by the base station, or q is a fixed value, or with regard to subframes of different cyclic prefix types, different q values are defined, wherein the cyclic prefixes comprise a normal cyclic prefix and an extended cyclic prefix.
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Abstract
A method for transmitting downlink control information, a detecting method, a base station and a UE are provided in the present invention. The detecting method includes: the UE detects downlink control information beared by ePDCCH in a resource block according to a resource block set and pre-defined information configured by the base station; wherein the pre-defined information at least includes one of the followings: sub-carrier position information detected in the resource block set, enhanced control channel unit information detected in the resource block set, a mapping mode of the ePDCCH, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set and a downlink control information format. In the present invention, the UE is agilely indicated to detected the downlink control information beared by the ePDCCH in the corresponding physical resource block according to the configured resource block set and the pre-defined information, so as to save resources of space detected and searched by the UE, thus scheduling efficient of the system is improved.
8 Citations
30 Claims
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1. A method for detecting downlink control information, comprising:
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a user equipment (UE) detecting downlink control information beared by an enhanced physical downlink control channel (ePDCCH) in a resource block according to a resource block set and pre-defined information configured by a base station, wherein the pre-defined information includes;
enhanced control channel unit information detected in the resource block set, a mapping mode of the ePDCCH; and
the pre-defined information further at least includes one of the followings;
sub-carrier position information detected in the resource block set, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set, and a downlink control information format;wherein the mapping mode of the ePDCCH comprises continuous mapping and/or discrete mapping; wherein ePDCCHs of the same aggregation level are configured to be of the same mapping mode; wherein according to the size of a resource corresponding to an aggregation level, and according to an ascending order, all aggregation levels are ranked as N1, N2, . . . Np, where p is a positive integer, wherein ePDCCHs corresponding to the aggregation levels N1, N2, . . . Nq are configured to be continuous mapping, and ePDCCHs corresponding to the aggregation levels N(q+1) . . . Np are configured to be discrete mapping, and q is a positive integer; wherein q is configured by the base station, or q is a fixed value, or with regard to subframes of different cyclic prefix types, different q values are defined, wherein the cyclic prefixes comprise a normal cyclic prefix and an extended cyclic prefix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A user equipment (UE), comprising:
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a receiving module, configured to receive a resource block set and pre-defined information configured by a base station, wherein the pre-defined information includes;
enhanced control channel unit information detected in the resource block set, a mapping mode of an ePDCCH; and
the pre-defined information further at least includes one of the followings;
sub-carrier position information detected in the resource block set, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set, and a downlink control information format; anda detection module, configured to detect downlink control information beared by an enhanced physical downlink control channel (ePDCCH) on the resource block according to the resource block set and the pre-defined information; wherein the mapping mode of the ePDCCH comprises continuous mapping and/or discrete mapping; wherein ePDCCHs of the same aggregation level are configured to be of the same mapping mode; wherein according to the size of a resource corresponding to an aggregation level, and according to an ascending order, all aggregation levels are ranked as N1, N2, . . . Np, where p is a positive integer, wherein ePDCCHs corresponding to the aggregation levels N1, N2, . . . Nq are configured to be continuous mapping, and ePDCCHs corresponding to the aggregation levels N(q+1) . . . Np are configured to be discrete mapping, and q is a positive integer; wherein q is configured by the base station, or q is a fixed value, or with regard to subframes of different cyclic prefix types, different q values are defined, wherein the cyclic prefixes comprise a normal cyclic prefix and an extended cyclic prefix. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A method for transmitting downlink control information, comprising:
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a base station transmitting a configured resource block set and pre-defined information to a UE so as to instruct the UE to detect downlink control information beared by an enhanced physical downlink control channel (ePDCCH) on the resource block, wherein the pre-defined information includes;
enhanced control channel unit information detected in the resource block set, a mapping mode of the ePDCCH; and
the pre-defined information further at least includes one of the followings;
sub-carrier position information detected in the resource block set, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set, and a downlink control information format;wherein the mapping mode of the ePDCCH comprises continuous mapping and/or discrete mapping; wherein ePDCCHs of the same aggregation level are configured to be of the same mapping mode; wherein according to the size of a resource corresponding to an aggregation level, and according to an ascending order, all aggregation levels are ranked as N1, N2, . . . Np, where p is a positive integer, wherein ePDCCHs corresponding to the aggregation levels N1, N2, . . . Nq are configured to be continuous mapping, and ePDCCHs corresponding to the aggregation levels N(q+1) . . . Np are configured to be discrete mapping, and q is a positive integer; wherein q is configured by the base station, or q is a fixed value, or with regard to subframes of different cyclic prefix types, different q values are defined, wherein the cyclic prefixes comprise a normal cyclic prefix and an extended cyclic prefix. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A base station, comprising:
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a configuration module, configured to configure a resource block set and pre-defined information, wherein the pre-defined information includes;
enhanced control channel unit information detected in the resource block set, a mapping mode of an ePDCCH; and
the pre-defined information further at least includes one of the followings;
sub-carrier position information detected in the resource block set, aggregation level configuration information detected in the resource block set, the amount of candidate set corresponding to the detected aggregation level in the resource block set, and a downlink control information format; anda transmitting module, configured to transmit the resource block set and pre-defined information to a UE so as to instruct the UE to detect downlink control information beared by an enhanced physical downlink control channel (ePDCCH) on the resource block; wherein the mapping mode of the ePDCCH comprises continuous mapping and/or discrete mapping; wherein ePDCCHs of the same aggregation level are configured to be of the same mapping mode; wherein according to the size of a resource corresponding to an aggregation level, and according to an ascending order, all aggregation levels are ranked as N1, N2, . . . Np, where p is a positive integer, wherein ePDCCHs corresponding to the aggregation levels N1, N2, . . . Nq are configured to be continuous mapping, and ePDCCHs corresponding to the aggregation levels N(q+1) . . . Np are configured to be discrete mapping, and q is a positive integer; wherein q is configured by the base station, or q is a fixed value, or with regard to subframes of different cyclic prefix types, different q values are defined, wherein the cyclic prefixes comprise a normal cyclic prefix and an extended cyclic prefix. - View Dependent Claims (26, 27, 28, 29, 30)
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Specification