Transmission collision resolving method and apparatus, and terminal and storage medium
Disclosed are a transmission collision resolving method, relating to the technical field of communications. The method comprises: when two uplink transmissions collide on a time domain, determining, from among the two uplink transmissions, a first uplink transmission with a higher priority and a second uplink transmission with a lower priority; performing first LBT on the first uplink transmission; and deciding, according to a first LBT result of the first uplink transmission, whether to perform the second uplink transmission.
1 . A transmission collision resolving method, comprising:
determining, by a terminal, a first uplink transmission with a higher priority and a second uplink transmission with a lower priority among two uplink transmissions, in response to determining that the two uplink transmissions collide on a time domain;
prioritizing, by the terminal, a first listen-before-talk (LBT) on the first uplink transmission; and
determining whether to perform the second uplink transmission according to a first LBT result of the first uplink transmission,
wherein the two uplink transmissions comprise:
a first physical uplink shared channel (PUSCH) and a first physical uplink control channel (PUCCH); or
the first PUSCH and a second PUSCH; or
a first dynamic scheduling and a second dynamic scheduling; or
the first dynamic scheduling and a first semi-static scheduling; or
the first semi-persistent scheduling and a second semi-persistent scheduling; or
a random access channel and the first PUSCH; or
the random access channel and the first PUCCH.
2 . The method according to claim 1 , wherein determining whether to perform the second uplink transmission according to the first LBT result of the first uplink transmission comprises:
performing the first uplink transmission and cancelling the second uplink transmission in response to determining that the first LBT of the first uplink transmission succeeds.
3 . The method according to claim 1 , wherein determining whether to perform the second uplink transmission according to the first LBT result of the first uplink transmission comprises:
performing a second LBT on the second uplink transmission in response to determining that the first LBT of the first uplink transmission fails;
performing the second uplink transmission in response to determining that the second LBT of the second uplink transmission succeeds.
4 . The method according to f claim 1 , further comprising:
determining whether to perform the second uplink transmission according to the first LBT result of the first uplink transmission, in response to determining that an initial transmission time t 1 of the first uplink transmission is before an initial transmission time t 2 of the second uplink transmission.
5 . The method according to claim 1 , further comprising:
determining whether to perform the second uplink transmission according to the first LBT result of the first uplink transmission, in response to determining that an initial transmission time t 1 of the first uplink transmission is before an initial transmission time t 2 of the second uplink transmission, and t 2 −t 1 is smaller than a first threshold d 1 .
6 . The method according to claim 1 , further comprising:
cancelling the second uplink transmission in response to determining that an initial transmission time t 1 of the first uplink transmission is after an initial transmission time t 2 of the second uplink transmission.
7 . The method according to claim 1 , further comprising:
cancelling the second uplink transmission in response to determining that an initial transmission time t 1 of the first uplink transmission is after an initial transmission time t 2 of the second uplink transmission, and t 1 −t 2 is greater than a second threshold d 2 .
8 . The method according to claim 1 , wherein the method is applied in the terminal, and the terminal comprises a medium access control (MAC) layer and a physical layer, and the method further comprises:
generating, by the MAC layer, a first Medium Access Control Protocol Data Unit (MAC PDU) corresponding to the first uplink transmission, and a second MAC PDU corresponding to the second uplink transmission, and
submitting, by the MAC layer, the first MAC PDU and the second MAC PDU to the physical layer.
9 . The method according to claim 1 , wherein the method is applied in the terminal, and the terminal comprises a medium access control (MAC) layer and a physical layer, and wherein determining the first uplink transmission with a higher priority and the second uplink transmission with a lower priority among the two uplink transmissions comprises:
indicating, by the MAC layer, priorities of the two uplink transmissions to the physical layer;
determining, by the physical layer, the first uplink transmission with a higher priority and the second uplink transmission with a lower priority according to the priorities of the two uplink transmissions.
10 . The method according to claim 1 , wherein the method is applied in the terminal, and the terminal comprises a medium access control (MAC) layer and a physical layer, and determining whether to perform the second uplink transmission according to a first LBT result of the first uplink transmission comprises:
indicating, by the physical layer, the first LBT result of the first uplink transmission to the MAC layer;
determining, by the MAC layer, whether to perform the second uplink transmission according to the first LBT result of the first uplink transmission.
11 . The method according to claim 7 , wherein the method is applied in the terminal, and the terminal comprises a medium access control (MAC) layer, and cancelling the second uplink transmission comprises:
not generating, by the MAC layer, a second MAC PDU in response to determining that the second MAC PDU of the second uplink transmission has not been generated.
12 . The method according to claim 7 , wherein the method is applied in the terminal, and the terminal comprises a medium access control (MAC) layer and a physical layer, and cancelling the second uplink transmission comprises:
cancelling, by the physical layer, sending of a second MAC PDU, in response to determining that the second MAC PDU of the second uplink transmission has been generated by the MAC layer.
13 . A terminal, comprising:
a processor;
a transceiver connected to the processor; and
a memory for storing instructions executable by the processor,
wherein, the processor is configured to load and execute the executable instructions to:
determine a first uplink transmission with a higher priority and a second uplink transmission with a lower priority among two uplink transmissions, in response to determining that the two uplink transmissions collide on a time domain;
prioritize a first listen-before-talk (LBT) on the first uplink transmission; and
determine whether to perform the second uplink transmission according to a first LBT result of the first uplink transmission,
wherein the two uplink transmissions comprise:
a first physical uplink shared channel (PUSCH) and a first physical uplink control channel (PUCCH); or
the first PUSCH and a second PUSCH; or
a first dynamic scheduling and a second dynamic scheduling; or
the first dynamic scheduling and a first semi-static scheduling; or
the first semi-persistent scheduling and a second semi-persistent scheduling; or
a random access channel and the first PUSCH; or
the random access channel and the first PUCCH.
14 . A non-transitory computer-readable storage medium, wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to implement:
determining a first uplink transmission with a higher priority and a second uplink transmission with a lower priority among two uplink transmissions, in response to determining that the two uplink transmissions collide on a time domain;
prioritizing a first listen-before-talk (LBT) on the first uplink transmission; and
determining whether to perform the second uplink transmission according to a first LBT result of the first uplink transmission,
wherein the two uplink transmissions comprise:
a first physical uplink shared channel (PUSCH) and a first physical uplink control channel (PUCCH); or
the first PUSCH and a second PUSCH; or
a first dynamic scheduling and a second dynamic scheduling; or
the first dynamic scheduling and a first semi-static scheduling; or
the first semi-persistent scheduling and a second semi-persistent scheduling; or
a random access channel and the first PUSCH; or
the random access channel and the first PUCCH.