SIDELINK TRANSMISSION PROCESSING METHOD AND APPARATUS, TERMINAL, AND NETWORK DEVICE

Abstract

A sidelink transmission processing method and apparatus, a terminal, and a network device. The method includes: in a case that a sidelink is transmitted based on N carriers, determining, according to first entities associated with some or all of the N carriers, whether the sidelink satisfies a carrier failure condition, or determining, according to a first entity associated with each of the N carriers, whether the corresponding carrier satisfies a carrier reselection condition. N is an integer greater than 1, and the first entity includes at least one of a hybrid automatic repeat request (HARQ) entity and a radio link control (RLC) entity.

Description

Claims

1. A sidelink transmission processing method, performed by a terminal, the method comprising: in a case that a sidelink is transmitted based on N carriers, determining, according to first entities associated with some or all of the N carriers, whether the sidelink satisfies a carrier failure condition, or determining, according to a first entity associated with each of the N carriers, whether the corresponding carrier satisfies a carrier reselection condition;wherein N is an integer greater than 1, and the first entity comprises at least one of a hybrid automatic repeat request (HARQ) entity and a radio link control (RLC) entity.

2. The method according to claim 1, wherein the sidelink satisfying a carrier failure condition comprises at least one of the following: a number of times of consecutive HARQ discontinuous transmission DTX of a HARQ entity associated with the first carrier reaching a corresponding maximum number of times of consecutive HARQ DTX;a cumulative number of times of consecutive HARQ DTX of HARQ entities associated with all carriers of a first carrier set reaching the corresponding maximum number of times of consecutive HARQ DTX, or a number of times of consecutive HARQ DTX of a HARQ entity associated with each carrier in the first carrier set reaching the corresponding maximum number of times of consecutive HARQ DTX;a number of times of retransmission of an RLC entity associated with a first logical channel reaching a corresponding maximum number of times of RLC retransmission; anda cumulative number of times of retransmission of RLC entities associated with all logical channels of a first logical channel set reaching the corresponding maximum number of times of RLC retransmission, or a number of times of retransmission of an RLC entity associated with each logical channel in the first logical channel set reaching the corresponding maximum number of times of RLC retransmission;wherein the first carrier is one of the N carriers, the first carrier set comprises at least two of the N carriers, the first logical channel is one of logical channels associated with the N carriers, and the first logical channel set comprises at least two of the logical channels associated with the N carriers.

3. The method according to claim 2, wherein the first carrier is one of the following: any one of the N carriers;one of the N carriers where a PC5 radio resource control (RRC) connection is located; anda designated one of the N carriers.

4. The method according to claim 2, wherein the first logical channel is one of the following: any one of the logical channels associated with the N carriers;one of the logical channels associated with the N carriers where a PC5 RRC connection is located; anda designated one of the logical channels associated with the N carriers.

5. The method according to claim 2, wherein the maximum number of times of consecutive HARQ DTX is configured by a network device, or pre-configured by the terminal, or specified by a protocol; and/or the maximum number of times of RLC retransmission is configured by a network device, or pre-configured by the terminal, or specified by a protocol.

6. The method according to claim 1, wherein, in a case that it is determined that the sidelink satisfies the carrier failure condition, the method further comprises at least one of the following: determining that a radio link failure (RLF) occurs on the sidelink;releasing a PC5 RRC connection corresponding to the sidelink; andstopping data transmission on the sidelink.

7. The method according to claim 1, wherein, in a case that it is determined that the sidelink satisfies the carrier failure condition, the method further comprises at least one of the following: maintaining a PC5 RRC connection of the sidelink;stopping sidelink transmission on a failed carrier; andinitiating a carrier reselection process for the failed carrier or sending first report information to a network device, wherein the first report information is used for indicating at least one of the failed carrier and a destination address of a sidelink corresponding to the failed carrier.

8. The method according to claim 1, wherein a second carrier satisfying the carrier reselection condition comprises at least one of the following: a number of times of consecutive HARQ discontinuous transmission DTX of a HARQ entity associated with the second carrier reaching a corresponding maximum number of times of consecutive HARQ DTX;a number of times of retransmission of an RLC entity associated with a second logical channel reaching a corresponding maximum number of times of RLC retransmission; anda cumulative number of times of retransmission of RLC entities associated with all logical channels of a second logical channel set reaching the corresponding maximum number of times of RLC retransmission, or a number of times of retransmission of an RLC entity associated with each logical channel in the second logical channel set reaching the corresponding maximum number of times of RLC retransmission;wherein the second carrier is any one of the N carriers, the second logical channel is one of logical channels associated with the second carrier, and the second logical channel set comprises at least two of the logical channels associated with the second carrier.

9. The method according to claim 8, wherein the second logical channel is one of the following: any one of the logical channels associated with the second carrier; anda designated one of the logical channels associated with the second carrier.

10. The method according to claim 1, wherein, in a case that it is determined that a third carrier satisfies the carrier reselection condition, the method further comprises at least one of the following: determining that a radio link failure (RLF) occurs on the sidelink;releasing a PC5 RRC connection corresponding to the sidelink; andstopping data transmission on the sidelink;wherein the third carrier is any one of the N carriers.

11. The method according to claim 1, wherein, in a case that it is determined that a fourth carrier satisfies the carrier reselection condition, the method further comprises at least one of the following: maintaining a PC5 RRC connection of the sidelink;stopping sidelink transmission on the fourth carrier; andinitiating a carrier reselection process for the fourth carrier or sending second report information to a network device, wherein the second report information is used for indicating at least one of a carrier that triggers carrier reselection and a destination address of a sidelink corresponding to the carrier that triggers carrier reselection;wherein the fourth carrier is any one of the N carriers.

12. A terminal, comprising: a memory, a processor, and a program or instruction stored in the memory and capable of running on the processor, wherein the program or instruction is executed by the processor to perform: in a case that a sidelink is transmitted based on N carriers, determining, according to first entities associated with some or all of the N carriers, whether the sidelink satisfies a carrier failure condition, or determining, according to a first entity associated with each of the N carriers, whether the corresponding carrier satisfies a carrier reselection condition;wherein N is an integer greater than 1, and the first entity comprises at least one of a hybrid automatic repeat request (HARQ) entity and a radio link control (RLC) entity.

13. The terminal according to claim 12, wherein the sidelink satisfying a carrier failure condition comprises at least one of the following: a number of times of consecutive HARQ discontinuous transmission DTX of a HARQ entity associated with the first carrier reaching a corresponding maximum number of times of consecutive HARQ DTX;a cumulative number of times of consecutive HARQ DTX of HARQ entities associated with all carriers of a first carrier set reaching the corresponding maximum number of times of consecutive HARQ DTX, or a number of times of consecutive HARQ DTX of a HARQ entity associated with each carrier in the first carrier set reaching the corresponding maximum number of times of consecutive HARQ DTX;a number of times of retransmission of an RLC entity associated with a first logical channel reaching a corresponding maximum number of times of RLC retransmission; anda cumulative number of times of retransmission of RLC entities associated with all logical channels of a first logical channel set reaching the corresponding maximum number of times of RLC retransmission, or a number of times of retransmission of an RLC entity associated with each logical channel in the first logical channel set reaching the corresponding maximum number of times of RLC retransmission;wherein the first carrier is one of the N carriers, the first carrier set comprises at least two of the N carriers, the first logical channel is one of logical channels associated with the N carriers, and the first logical channel set comprises at least two of the logical channels associated with the N carriers.

14. The terminal according to claim 13, wherein the first carrier is one of the following: any one of the N carriers;one of the N carriers where a PC5 radio resource control (RRC) connection is located; anda designated one of the N carriers.

15. The terminal according to claim 13, wherein the first logical channel is one of the following: any one of the logical channels associated with the N carriers;one of the logical channels associated with the N carriers where a PC5 RRC connection is located; anda designated one of the logical channels associated with the N carriers.

16. The terminal according to claim 12, wherein, in a case that it is determined that the sidelink satisfies the carrier failure condition, the program or instruction is executed by the processor to perform at least one of the following: determining that a radio link failure (RLF) occurs on the sidelink;releasing a PC5 RRC connection corresponding to the sidelink; andstopping data transmission on the sidelink.

17. The terminal according to claim 12, wherein, in a case that it is determined that the sidelink satisfies the carrier failure condition, the program or instruction is executed by the processor to perform at least one of the following: maintaining a PC5 RRC connection of the sidelink;stopping sidelink transmission on a failed carrier; andinitiating a carrier reselection process for the failed carrier or sending first report information to a network device, wherein the first report information is used for indicating at least one of the failed carrier and a destination address of a sidelink corresponding to the failed carrier.

18. The terminal according to claim 12, wherein a second carrier satisfying the carrier reselection condition comprises at least one of the following: a number of times of consecutive HARQ discontinuous transmission DTX of a HARQ entity associated with the second carrier reaching a corresponding maximum number of times of consecutive HARQ DTX;a number of times of retransmission of an RLC entity associated with a second logical channel reaching a corresponding maximum number of times of RLC retransmission; anda cumulative number of times of retransmission of RLC entities associated with all logical channels of a second logical channel set reaching the corresponding maximum number of times of RLC retransmission, or a number of times of retransmission of an RLC entity associated with each logical channel in the second logical channel set reaching the corresponding maximum number of times of RLC retransmission;wherein the second carrier is any one of the N carriers, the second logical channel is one of logical channels associated with the second carrier, and the second logical channel set comprises at least two of the logical channels associated with the second carrier.

19. The terminal according to claim 12, wherein, in a case that it is determined that a third carrier satisfies the carrier reselection condition, the program or instruction is executed by the processor to perform at least one of the following: determining that a radio link failure (RLF) occurs on the sidelink;releasing a PC5 RRC connection corresponding to the sidelink; andstopping data transmission on the sidelink;wherein the third carrier is any one of the N carriers.

20. The terminal according to claim 12, wherein, in a case that it is determined that a fourth carrier satisfies the carrier reselection condition, the program or instruction is executed by the processor to perform at least one of the following: maintaining a PC5 RRC connection of the sidelink;stopping sidelink transmission on the fourth carrier; andinitiating a carrier reselection process for the fourth carrier or sending second report information to a network device, wherein the second report information is used for indicating at least one of a carrier that triggers carrier reselection and a destination address of a sidelink corresponding to the carrier that triggers carrier reselection;wherein the fourth carrier is any one of the N carriers.