Uplink control information transmission method and apparatus in carrier aggregation
AssigneeHuawei Technologies Co., Ltd.
InventorsJiehua Xiao, Yongxia Lyu, Lei Guan
Life of this patent
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Abstract
Embodiments of the present disclosure provide a method for a transmission of uplink control information (UCI), such as hybrid automatic repeat request (HARQ) information. A base station sends first indication information to a user equipment (UE), to instruct the UE to dynamically determine the UCI according to the first indication information, and the base station allocates a physical uplink control channel (PUCCH) resource to the UE to transmit the UCI. The embodiments of the present disclosure may be used to implement a feedback of the UCI information in a carrier aggregation scenario, thereby improving performance of transmitting valid UCI information.
Claims20
A method for sending information in a communications system, comprising:
- receiving, by a user equipment (HE), a radio resource control (RRC) configuration signaling from a base station carrying indication information instructing the HE to perform spatial bundling on hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information, wherein the spatial bundling is an AND logical operation on the HARQ ACK/NACK information, and the HARQ ACK/NACK information comprises two bits corresponding to two codewords of a carrier;
- performing, by the UE, according to the indication information, the spatial bundling on the HARQ ACK/NACK information by performing the AND logical operation on the two bits of the HARQ ACK/NACK information to determine bundled HARQ information, wherein the bundled HARQ information comprises 1-hit ACK/NACK information;
- and
- sending, by the HE, the bundled HARQ information on a physical uplink control channel (PUCCH) resource.
An apparatus, comprising:
- a memory storing a program;
- and
- a processor coupled with the memory, wherein the processor is configured to execute the program to cause the apparatus to:
- receive a radio resource control (RRC) configuration signaling from a base station carrying indication information instructing the apparatus to perform spatial bundling on hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information, wherein the spatial bundling is an AND logical operation on the HARQ ACK/NACK information, and the HARQ ACK/NACK information comprises two bits corresponding to two codewords of a carrier;
- perform, according to the indication information, the spatial bundling on the HARQ ACK/NACK information by performing the AND logical operation on the two bits of the HARQ ACK/NACK information to determine bundled HARQ information, wherein the bundled HARQ information comprises 1-bit ACK/NACK information;
- and
- send the bundled HARQ information on a physical uplink control channel (PUCCH) resource.
A non-transitory computer readable medium comprising instructions stored therein that, when executed by a processor, cause the processor to:
- receive a radio resource control (RRC) configuration signaling from a base station carrying indication information instructing the processor to perform spatial bundling on hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) information, wherein the spatial bundling is an AND logical operation on the HARQ ACK/NACK information, and the HARQ ACK/NACK information comprises two bits corresponding to two codewords of a carrier;
- perform, according to the indication information, the spatial bundling on the HARQ ACK/NACK information b performing the AND logical operation on the two bits of the HARQ ACK/NACK information to determine bundled HARQ information, wherein the bundled HARQ information comprises 1-bit ACK/NACK information;
- and
- send the bundled HARQ information on a physical uplink control channel (MATH) resource.
Dependencies are inferred from the claim text.