METHOD FOR TRANSMITTING CONTROL INFORMATION, BASE STATION, AND USER EQUIPMENT
First Claim
1. A method for transmitting control information, comprising:
- determining, according to a mapping rule by a base station, a physical resource from an enhanced physical downlink control channel (EPDCCH) physical resource set, wherein, the mapping rule is a correspondence between a carrier and a physical resource;
sending, by the base station, control information to a user equipment (UE) by using the physical resource, so that the UE determines, according to the mapping rule, a carrier to which the control information is applied,wherein a carrier which the control information is beared is the same as or different from the carrier to which the control information is applied.
1 Assignment
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Accused Products
Abstract
The present invention provides a method for transmitting control information, a base station, and a user equipment. The method includes: sending control information to a user equipment UE by using an EPDCCH physical resource set, wherein the base station determines, according to a mapping rule, a physical resource for sending the control information, so that the UE determines, according to the mapping rule, a carrier to which the control information is applied, where a carrier bearing the control information is the same as or different from the carrier to which the control information is applied, and the mapping rule is a correspondence between a carrier and a physical resource. The foregoing method solves problems of large control information overheads and resource waste caused by lack of configuration of an EPDCCH which can support cross-carrier scheduling in an LTE system in the prior art.
19 Citations
20 Claims
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1. A method for transmitting control information, comprising:
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determining, according to a mapping rule by a base station, a physical resource from an enhanced physical downlink control channel (EPDCCH) physical resource set, wherein, the mapping rule is a correspondence between a carrier and a physical resource; sending, by the base station, control information to a user equipment (UE) by using the physical resource, so that the UE determines, according to the mapping rule, a carrier to which the control information is applied, wherein a carrier which the control information is beared is the same as or different from the carrier to which the control information is applied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for transmitting control information, comprising:
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receiving, by a user equipment UE, control information, which is sent by a base station by using a physical resource which is determined by the base station according to a mapping rule from an enhanced physical downlink control channel (EPDCCH) physical resource set, wherein the mapping rule is a correspondence between a carrier and a physical resource; and determining, by the UE according to the mapping rule, a carrier to which the control information is applied, wherein a carrier which the control information is beared the control information is the same as or different from the carrier to which the control information is applied. - View Dependent Claims (14, 15, 16, 17)
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18. A base station, comprising:
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determining unit, configured to determine according to a mapping rule by a base station, a physical resource from an enhanced physical downlink control channel (EPDCCH) physical resource set, wherein, the mapping rule is a correspondence between a carrier and a physical resource; a sending unit, configured to send control information to a user equipment UE by using the physical resource, so that the UE determines, according to the mapping rule, a carrier to which the control information is applied, wherein a carrier which the control information is beared is the same as or different from the carrier to which the control information is applied. - View Dependent Claims (19, 20)
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Specification