Method and user equipment for receiving downlink control channel, and method and base station for transmitting downlink control channel
AssigneeLG Electronics Inc.
InventorsHyangsun YOU, Yunjung YI
Life of this patent
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Abstract
Information indicating one of possible PDSCH start subframes may be provided to the UE via the PDCCH. The PDSCH corresponding to the PDCCH may be transmitted/received starting from the indicated subframe. The possible PDSCH start subframes may be determined based on the ratio of the maximum number of PDCCH repetitions in the PDCCH search space and may be determined based on the ratio of the number of times related to the PDSCH repetition after the PDCCH search space.
Claims14
A method of receiving a downlink channel by a user equipment, the method comprising:
- receiving a physical downlink control channel (PDCCH) carrying downlink control information (DCI) in a PDCCH search space R times, wherein R is a positive integer;
- and
- receiving a physical downlink shared channel (PDSCH) starting from subframe l after subframe n, in which the PDCCH is received last, based on the DCI,
- wherein the DCI includes information indicating the subframe l among possible PDSCH start positions,
- wherein the possible PDSCH start positions are determined based on a ratio of a maximum number of PDCCH repetitions Rmax in the PDCCH search space and are determined based on a ratio of the number of times D related to repetition of the PDSCH after the PDCCH search space.
A user equipment for receiving a downlink channel, comprising:
- a radio frequency (RF) unit;
- and
- a processor configured to control the RF unit,
- wherein the processor is configured to:
- control the RF unit to receive a physical downlink control channel (PDCCH) carrying downlink control information (DCI) in a PDCCH search space R times, wherein R is a positive integer;
- and
- control the RF unit to receive a physical downlink shared channel (PDSCH) starting from subframe l after subframe n, in which the PDCCH is received last, based on the DCI, wherein the DCI includes information indicating the subframe l among possible PDSCH start positions,
- wherein the possible PDSCH start positions are determined based on a ratio of a maximum number of PDCCH repetitions Rmax in the PDCCH search space and are determined based on a ratio of the number of times D related to repetition of the PDSCH after the PDCCH search space.
A method of transmitting a downlink channel by a base station, the method comprising:
- transmitting a physical downlink control channel (PDCCH) carrying downlink control information (DCI) in a PDCCH search space R times, wherein R is a positive integer;
- and
- transmitting a physical downlink shared channel (PDSCH) starting from subframe l after subframe n, in which the PDCCH is transmitted last, based on the DCI,
- wherein the DCI includes information indicating the subframe l among possible PDSCH start positions,
- wherein the possible PDSCH start positions are determined based on a ratio of a maximum number of PDCCH repetitions Rmax in the PDCCH search space and are determined based on a ratio of the number of times D related to repetition of the PDSCH after the PDCCH search space.
A base station for transmitting a downlink channel, comprising:
- a radio frequency (RF) unit;
- and
- a processor configured to control the RF unit,
- wherein the processor is configured to
- control the RF unit to transmit a physical downlink control channel (PDCCH) carrying downlink control information (DCI) in a PDCCH search space R times, wherein R is a positive integer;
- and
- control the RF unit to transmit a physical downlink shared channel (PDSCH) starting from subframe l after subframe n, in which the PDCCH is transmitted last, based on the DCI, wherein the DCI includes information indicating the subframe l among possible PDSCH start positions,
- wherein the possible PDSCH start positions are determined based on a ratio of a maximum number of PDCCH repetitions Rmax in the PDCCH search space and are determined based on a ratio of the number of times D related to repetition of the PDSCH after the PDCCH search space.
Dependencies are inferred from the claim text.