Transmission method, terminal device and base station
AssigneeChina Academy of Telecommunications Technology
InventorsXuejuan Gao, Ekpenyong Tony, Fang-Chen Cheng
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Abstract
Embodiment of the present application provides a transmission method, a terminal device, and a base station, used to solve the technical problem in the related art that there is no method supporting CBG-based retransmission and ACK/NACK feedback. The transmission method comprises: receiving by the terminal device a downlink control channel; and acquiring by the terminal device a first indication field from the downlink control channel, the first indication field being used to indicate whether each code block group (CBG) in the corresponding CBGs in an initial transmission of TB needs to be retransmitted.
Claims16
A transmission method, applied to a terminal device, the method comprising:
- receiving, by the terminal device, a downlink control channel;
- and
- obtaining, by the terminal device, a first indicator field from the downlink control channel, wherein the first indicator field indicates whether each code block group (CBG) of CBGs in an initial transmission of a Transport Block (TB) needs to be retransmitted;
- wherein the first indicator field comprises A*M-bit indication information, each TB corresponds to M-bit indication information, and each 1-bit in the M-bit information corresponds to one CBG in an initial transmission of a TB and indicates whether to retransmit the one CBG, wherein M is a preset or preconfigured quantity of CBGs into which a TB is divided, A is a quantity of TBs comprised in a shared channel transmission, and M and A are integers greater than or equal to 1.
A transmission method, applied to a base station, the method comprising:
- sending, by the base station, a downlink control channel, wherein the downlink control channel comprises a first indicator field, and the first indicator field indicates whether each code block group (CBG) of CBGs in an initial transmission of a Transport Block (TB) needs to be retransmitted;
- wherein the first indicator field comprises A*M-bit indication information, each TB corresponds to M-bit indication information, and each 1-bit in the M-bit information corresponds to one CBG in an initial transmission of a TB and indicates whether to retransmit the one CBG, wherein M is a preset or preconfigured quantity of CBGs into which a TB is divided, A is a quantity of TBs comprised in a shared channel transmission, and M and A are integers greater than or equal to 1.
A terminal device, comprising:
- at least one processor and a memory, wherein the least one processor is configured to read and execute programs stored in the memory to:
- receive a downlink control channel;
- and
- obtain a first indicator field from the downlink control channel, wherein the first indicator field indicates whether each code block group (CBG) of CBGs in an initial transmission of a Transport Block (TB) needs to be retransmitted;
- wherein the first indicator field comprises A*M-bit indication information, each TB corresponds to M-bit indication information, and each 1-bit in the M-bit information corresponds to one CBG in an initial transmission of a TB and indicates whether to retransmit the one CBG, wherein M is a preset or preconfigured quantity of CBGs into which a TB is divided, A is a quantity of TBs comprised in a shared channel transmission, and M and A are integers greater than or equal to 1.
A base station, comprising:
- at least one processor and a memory, wherein the least one processor is configured to read and execute programs stored in the memory to:
- send a downlink control channel, wherein the downlink control channel comprises a first indicator field, and the first indicator field indicates whether each code block group (CBG) of CBGs in an initial transmission of a Transport Block (TB) needs to be retransmitted;
- wherein the first indicator field comprises A*M-bit indication information, each TB corresponds to M-bit indication information, and each 1-bit in the M-bit information corresponds to one CBG in an initial transmission of a TB and indicates whether to retransmit the one CBG, wherein M is a preset or preconfigured quantity of CBGs into which a TB is divided, A is a quantity of TBs comprised in a shared channel transmission, and M and A are integers greater than or equal to 1.
Dependencies are inferred from the claim text.