Uplink information sending method and apparatus and uplink information receiving method and apparatus
In an uplink information sending method, a terminal device receives scheduling information sent by an access network device in a first time unit. The terminal device determines a second time unit and a first time offset. The second time unit is after the first time unit, and the second time unit carries downlink information sent by the access network device. The terminal device further determines a third time unit. The third time unit is a time unit that is offset from the second time unit by the first time offset. Further, the terminal device sends first uplink information scheduled by using the scheduling information in the third time unit. In this way, information transmission flexibility and reliability can be improved.
1. A method, comprising:
receiving, by a terminal device in a first time unit, configuration information and scheduling information from an access network device, wherein the configuration information and the scheduling information are included in a same downlink control information (DCI), wherein the configuration information comprises 1-bit information indicating a transmission mode, and wherein when a value of the 1-bit information is 1, a third time unit is determined based on a second time unit; and
after receiving the scheduling information:
determining, by the terminal device, the second time unit which carries common control information sent by the access network device, wherein the second time unit is after the first time unit;
determining, by the terminal device, a first time offset based on the scheduling information;
determining, by the terminal device, the third time unit based on the first time offset and the second time unit; and
sending, by the terminal device in the third time unit, first uplink information scheduled by using the scheduling information.
2. The method according to claim 1 , wherein:
the first time unit belongs to a first downlink burst, the second time unit belongs to a second downlink burst, the second downlink burst is after the first downlink burst, and there are L downlink bursts between the second downlink burst and the first downlink burst, wherein L is an integer, and L≥0.
3. The method according to claim 2 , wherein:
the second time unit is the second to last downlink time unit in the second downlink burst; or
the second time unit is the last downlink time unit in the second downlink burst.
4. The method according to claim 1 , wherein:
the common control information is used to indicate an end moment of a downlink burst to which the second time unit belongs.
5. An apparatus, comprising:
at least one processor; and
a storage medium coupled to the at least one processor, the storage medium comprising executable instructions that, when executed by the at least one processor, cause the apparatus to:
receive, in a first time unit, configuration information and scheduling information sent by an access network device, wherein the configuration information and the scheduling information are included in a same downlink control information (DCI), wherein the configuration information comprises 1-bit information indicating a transmission mode, and wherein when a value of the 1-bit information is 1, a third time unit is determined based on a second time unit; and
after receiving the scheduling information:
determine the second time unit which carries common control information sent from the access network device, wherein the second time unit is after the first time unit;
determining a first time offset based on the scheduling information;
determine the third time unit based on the first time offset and the second time unit; and
send, in the third time unit, first uplink information scheduled by using the scheduling information.
6. The apparatus according to claim 5 , wherein:
the first time unit belongs to a first downlink burst, the second time unit belongs to a second downlink burst, the second downlink burst is after the first downlink burst, and there are L downlink bursts between the second downlink burst and the first downlink burst, wherein L is an integer, and L≥0.
7. The apparatus according to claim 6 , wherein:
the second time unit is the second to last downlink time unit in the second downlink burst; or
the second time unit is the last downlink time unit in the second downlink burst.
8. The apparatus according to claim 5 , wherein:
the common control information is used to indicate an end moment of a downlink burst to which the second time unit belongs.
9. A non-transitory computer-readable storage medium comprising instructions that, when executed by a computer, cause the computer to:
receive, in a first time unit, configuration information and scheduling information from an access network device, wherein the configuration information and the scheduling information are included in a same downlink control information (DCI), wherein the configuration information comprises 1-bit information indicating a transmission mode, and wherein when a value of the 1-bit information is 1, a third time unit is determined based on a second time unit; and
after receiving the scheduling information:
determine the second time unit which carries common control information sent by the access network device, wherein the second time unit is after the first time unit;
determining a first time offset based on the scheduling information;
determine the third time unit based on the first time offset and the second time unit; and
send, in the third time unit, first uplink information scheduled by using the scheduling information.
10. The non-transitory computer-readable storage medium according to claim 9 , wherein:
the common control information is used to indicate an end moment of a downlink burst to which the second time unit belongs.
11. The non-transitory computer-readable storage medium according to claim 9 , wherein:
the first time unit belongs to a first downlink burst, the second time unit belongs to a second downlink burst, the second downlink burst is after the first downlink burst, and there are L downlink bursts between the second downlink burst and the first downlink burst, wherein L is an integer, and L≥0.
12. The non-transitory computer-readable storage medium according to claim 11 , wherein:
the second time unit is the second to last downlink time unit in the second downlink burst; or
the second time unit is the last downlink time unit in the second downlink burst.