Wireless communication method, terminal device, and network device
View Patent ↗A wireless communication method, a terminal device, and a network device are provided. The method includes: determining, by a terminal device, a first physical channel or a first time unit in which a first physical channel is located, where the first physical channel is used to transmit first feedback information corresponding to a first PDSCH, the first time unit is later than a second time unit, and the second time unit is a time unit determined based on pre-configured information and used to transmit the first feedback information corresponding to the first PDSCH; receiving, by the terminal device, a second PDSCH, where HARQ process number carried in the second PDSCH is the same as HARQ process number carried in the first PDSCH; and determining, by the terminal device, an operation for the first feedback information based on a time domain position associated with the second PDSCH.
1 . A wireless communication method, comprising:
determining, by a terminal device, a first physical channel or a first time unit in which a first physical channel is located, wherein the first physical channel is used to transmit first feedback information corresponding to a first physical downlink shared channel (PDSCH), the first time unit is later than a second time unit, and the second time unit is a time unit determined based on pre-configured information and used to transmit the first feedback information;
receiving, by the terminal device, a second PDSCH, wherein a hybrid automatic repeat request (HARQ) process number carried in the second PDSCH is the same as HARQ process number carried in the first PDSCH; and
determining, by the terminal device, an operation for the first feedback information based on a time domain position associated with the second PDSCH.
2 . The method according to claim 1 , wherein the time domain position associated with the second PDSCH comprises:
a starting position, a starting symbol, or the first symbol of the second PDSCH; or
an ending position, an ending symbol, or the last symbol of the second PDSCH; or
a starting position, a starting symbol, or the first symbol of a second physical downlink control channel (PDCCH); or
an ending position, an ending symbol, or the last symbol of a second PDCCH,
wherein the second PDCCH is used to carry second downlink control information (DCI), and the second DCI is used to schedule the second PDSCH.
3 . The method according to claim 1 , wherein the determining, by the terminal device, an operation for the first feedback information based on a time domain position associated with the second PDSCH comprises:
the terminal device determines that the first feedback information is to be discarded, wherein the second PDSCH is a semi-persistent scheduling (SPS) PDSCH, and the time domain position associated with the second PDSCH is earlier than or equal to a time domain position associated with the first physical channel.
4 . The method according to claim 3 , wherein the time domain position associated with the second PDSCH comprises:
a starting position, a starting symbol, or the first symbol of the second PDSCH; or
an ending position, an ending symbol, or the last symbol of the second PDSCH.
5 . The method according to claim 3 , wherein the time domain position associated with the first physical channel comprises:
a starting position, a starting symbol, or the first symbol of the first physical channel; or
an ending position, an ending symbol, or the last symbol of the first physical channel.
6 . The method according to claim 1 , wherein the first PDSCH is a SPS PDSCH.
7 . The method according to claim 1 , wherein the first physical channel is a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).
8 . The method according to claim 1 , wherein a resource, in the second time unit, used to transmit the first feedback information is not capable of being used for uplink transmission.
9 . The method according to claim 1 , wherein the second time unit is a downlink symbol.
10 . A network device, comprising at least one processor, and at least one memory including computer program, wherein the at least one memory and the at least one processor are configured with the computer program, to cause the network device at least to:
send a first physical downlink shared channel (PDSCH), wherein first feedback information corresponding to the first PDSCH is transmitted by using a first physical channel, a first time unit in which the first physical channel is located is later than a second time unit, and the second time unit is a time unit determined based on pre-configured information and used to transmit the first feedback information;
send a second PDSCH, wherein a hybrid automatic repeat request (HARQ) process number carried in the second PDSCH is the same as HARQ process number carried in the first PDSCH; and
determine an operation for the first feedback information based on a time domain position associated with the second PDSCH.
11 . The network device according to claim 10 , wherein the time domain position associated with the second PDSCH comprises:
a starting position, a starting symbol, or the first symbol of the second PDSCH; or
an ending position, an ending symbol, or the last symbol of the second PDSCH; or
a starting position, a starting symbol, or the first symbol of a second PDCCH; or
an ending position, an ending symbol, or the last symbol of a second PDCCH,
wherein the second PDCCH is used to carry second downlink control information (DCI), and the second DCI is used to schedule the second PDSCH.
12 . The network device according to claim 10 , wherein the network device is configured to skip receiving the first feedback information, wherein the second PDSCH is a semi-persistent scheduling (SPS) PDSCH, and the time domain position associated with the second PDSCH is earlier than or equal to a time domain position associated with the first physical channel.
13 . The network device according to claim 12 , wherein the time domain position associated with the second PDSCH comprises:
a starting position, a starting symbol, or the first symbol of the second PDSCH; or
an ending position, an ending symbol, or the last symbol of the second PDSCH.
14 . The network device according to claim 12 , wherein the time domain position associated with the first physical channel comprises:
a starting position, a starting symbol, or the first symbol of the first physical channel; or
an ending position, an ending symbol, or the last symbol of the first physical channel.
15 . The network device according to claim 10 , wherein the first PDSCH is a SPS PDSCH.
16 . The network device according to claim 10 , wherein the first physical channel is a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH).
17 . The network device according to claim 10 , wherein a resource, in the second time unit, used to transmit the first feedback information is not capable of being used for uplink transmission.
18 . The network device according to claim 10 , wherein the second time unit is a downlink symbol.
19 . A terminal device, comprising at least one processor, and at least one memory including computer program, wherein the at least one memory and the at least one processor are configured with the computer program, to cause the terminal device at least to:
determine a first physical channel or a first time unit in which a first physical channel is located, wherein the first physical channel is used to transmit first feedback information corresponding to a first physical downlink shared channel (PDSCH), the first time unit is later than a second time unit, and the second time unit is a time unit determined based on pre-configured information and used to transmit the first feedback information;
receive a second PDSCH, wherein a hybrid automatic repeat request (HARQ) process number carried in the second PDSCH is the same as HARQ process number carried in the first PDSCH; and
determine an operation for the first feedback information based on a time domain position associated with the second PDSCH.
20 . The terminal device according to claim 19 , wherein the time domain position associated with the second PDSCH comprises:
a starting position, a starting symbol, or the first symbol of the second PDSCH; or
an ending position, an ending symbol, or the last symbol of the second PDSCH; or
a starting position, a starting symbol, or the first symbol of a second physical downlink control channel (PDCCH); or
an ending position, an ending symbol, or the last symbol of a second PDCCH,
wherein the second PDCCH is used to carry second downlink control information (DCI), and the second DCI is used to schedule the second PDSCH.