Data communication method and apparatus
View Patent ↗Disclosed are a data transmission method and apparatus, which are used for realizing low-delay and high-reliability transmission of data in a new radio (NR) system. The method comprises: determining an actual transmission opportunity in a transmission period according to a notification of a network side, and determining a first transmission opportunity on the basis of the actual transmission opportunity, wherein there are T valid transmission opportunities between the first transmission opportunity and a first moment, the valid transmission opportunities include an actual transmission opportunity with an RV of zero, and the first moment is before the end of the transmission period or before the start of a period of a second configuration authorization configuration; when data is ready before the first transmission opportunity and after the second transmission opportunity, starting data transmission at the first transmission opportunity, wherein the second transmission opportunity is the actual transmission opportunity before the first transmission opportunity; and when the data is ready after the first transmission opportunity, starting the data transmission in the next period. Therefore, a valid starting position may be determined according to a received signaling indication.
1. A data communication method, comprising:
determining a valid transmission occasion in a transmission period according to a notification from a network side, and determining a first transmission occasion based on the valid transmission occasion;
wherein there are only T valid transmission occasions between the first transmission occasion and a first moment, wherein T>=1, the valid transmission occasion comprises an actual transmission occasion with Redundancy Version, RV, of 0, and the first moment is before an ending of the transmission period or before a beginning of a period of a second configured grant configuration, wherein the second configured grant configuration is different from a first configured grant configuration to which the first transmission occasion belongs;
when data is ready before the first transmission occasion and after a second transmission occasion which is a valid transmission occasion before the first transmission occasion, starting data communication in the first transmission occasion;
when data is ready after the first transmission occasion, starting data communication in a next period.
2. The method according to claim 1 , wherein the transmission period comprises K nominal transmission occasions, wherein K>=1;
the determining a valid transmission occasion in a transmission period according to a notification from a network side and determining a first transmission occasion based on the valid transmission occasion, specifically comprises:
determining a valid transmission occasion among the K nominal transmission occasions according to the notification from the network side;
determining the valid transmission occasion within time from an S th nominal transmission occasion to a (K−2) th nominal transmission occasion as the first transmission occasion, wherein S>=1, the valid transmission occasion is an actual transmission occasion with RV=0, or the valid transmission occasion is a nominal transmission occasion including an actual transmission occasion with RV=0.
3. The method according to claim 2 , wherein the notification from the network side comprises Radio Resource Control, RRC, signaling or Downlink Control Information, DCI, signaling.
4. The method according to claim 3 , wherein the DCI signaling comprises dynamic scheduling signaling or Slot Format Indication, SFI, signaling.
5. A data communication method, comprising:
determining a valid transmission occasion in a transmission period, and determining a first transmission occasion based on the valid transmission occasion; wherein there are only T valid transmission occasions between the first transmission occasion and a first moment, wherein T>=1, the valid transmission occasion comprises an actual transmission occasion with Redundancy Version, RV, of 0, and the first moment is before an ending of the transmission period or before a beginning of a period of a second configured grant configuration, wherein the second configured grant configuration is different from a first configured grant configuration to which the first transmission occasion belongs;
detecting whether data arrives in the first transmission occasion and a transmission occasion before the first transmission, or starting sending data in the first transmission occasion.
6. The method according to claim 5 , wherein the transmission period comprises K nominal transmission occasions, wherein K>=1;
the determining a valid transmission occasion in a transmission period and determining a first transmission occasion based on the valid transmission occasion, comprises:
determining a valid transmission occasion among the K nominal transmission occasions;
determining the valid transmission occasion within time from an S th nominal transmission occasion to a (K−2) th nominal transmission occasion as the first transmission occasion, wherein S>=1, the valid transmission occasion is an actual transmission occasion with RV=0, or the valid transmission occasion is a nominal transmission occasion comprising an actual transmission occasion with RV=0.
7. The method according to claim 5 , further comprising:
sending a notification for instructing a terminal to determine the first transmission occasion in the transmission period to the terminal.
8. The method according to claim 7 , wherein the notification comprises Radio Resource Control, RRC, signaling or Downlink Control Information, DCI, signaling.
9. The method according to claim 8 , wherein the DCI signaling comprises dynamic scheduling signaling or Slot Format Indication, SFI, signaling.
10. A data communication apparatus, comprising:
a memory configured to store program instructions;
a processor configured to invoke the program instructions stored in the memory and execute according to an obtained program:
determining a valid transmission occasion in a transmission period according to a notification from a network side, and determining a first transmission occasion based on the valid transmission occasion; wherein there are only T valid transmission occasions between the first transmission occasion and a first moment, wherein T>=1, the valid transmission occasion comprises an actual transmission occasion with Redundancy Version, RV, of 0, and the first moment is before an ending of the transmission period or before a beginning of a period of a second configured grant configuration, wherein the second configured grant configuration is different from a first configured grant configuration to which the first transmission occasion belongs;
when data is ready before the first transmission occasion and after a second transmission occasion that is a valid transmission occasion before the first transmission occasion, starting data communication in the first transmission occasion;
when data is ready after the first transmission occasion, starting data communication in a next period.
11. The apparatus according to claim 10 , wherein the transmission period comprises K nominal transmission occasions, wherein K>=1;
the processor is configured to:
determine a valid transmission occasion among the K nominal transmission occasions according to the notification from the network side;
determine the valid transmission occasion within time from an S th nominal transmission occasion to a (K−2) th nominal transmission occasion as the first transmission occasion, wherein S>=1, the valid transmission occasion is an actual transmission occasion with RV=0, or the valid transmission occasion is a nominal transmission occasion comprising an actual transmission occasion with RV=0.
12. The apparatus according to claim 11 , wherein the notification from the network side comprises Radio Resource Control, RRC, signaling or Downlink Control Information, DCI, signaling.
13. The apparatus according to claim 12 , wherein the DCI signaling comprises dynamic scheduling signaling or Slot Format Indication, SFI, signaling.
14. A data communication apparatus, comprising:
a memory configured to store program instructions;
a processor configured to invoke the program instructions stored in the memory and execute the method according to claim 5 .
15. The apparatus according to claim 14 , wherein the transmission period comprises K nominal transmission occasions, wherein K>=1;
the processor is specifically configured to:
determine a valid transmission occasion among the K nominal transmission occasions;
determine the valid transmission occasion within time from an S th nominal transmission occasion to a (K−2) th nominal transmission occasion as the first transmission occasion, wherein S>=1, the valid transmission occasion is an actual transmission occasion with RV=0, or the valid transmission occasion is a nominal transmission occasion comprising an actual transmission occasion with RV=0.
16. The apparatus according to claim 14 , wherein the processor is further configured to:
send a notification for instructing a terminal to determine the first transmission occasion in the transmission period to the terminal.
17. The apparatus according to claim 16 , wherein the notification comprises Radio Resource Control, RRC, signaling or Downlink Control Information, DCI, signaling.
18. The apparatus according to claim 17 , wherein the DCI signaling comprises dynamic scheduling signaling or Slot Format Indication, SFI, signaling.
19. A non-transitory computer storage medium, wherein the computer storage medium stores computer-executable instructions, which are configured to cause a computer to perform the method of claim 1 .