Wireless communication method and apparatus, device, and storage medium
View Patent ↗The present disclosure relates to communication technology, and discloses a wireless communication method and apparatus, a device, and a storage medium. The method includes: obtaining indication information; and determining whether a transmission of a first channel corresponds to a channel access procedure and/or determining a channel access parameter in a channel access procedure corresponding to the transmission of the first channel according to the indication information. With the solutions of the present disclosure, the terminal device can determine whether a channel access procedure is required during an initial access procedure according to the obtained indication information, so as to determine a DCI size or an RAR type to be demodulated during the initial access procedure, or determine whether to perform the channel access procedure during a PRACH or MsgA transmission process, thereby avoiding ambiguity in understanding between the terminal device and the network device.
1 . A wireless communication method, performed by a terminal device, the method comprising:
obtaining indication information, wherein the indication information is carried in a system message;
determining whether channel access parameter indication information is included in grant information for scheduling a transmission of a first channel according to the indication information; wherein the channel access parameter indication information indicates a type of a channel access scheme; and
determining whether to enable short control information transmission according to the indication information, wherein the transmission of the first channel does not correspond to a channel access procedure when it is determined according to the indication information to enable the short control information transmission; and the transmission of the first channel corresponds to the channel access procedure when it is determined according to the indication information not to enable the short control information transmission.
2 . The method according to claim 1 , wherein grant information for scheduling the transmission of the first channel includes channel access parameter indication information when it is determined according to the indication information that the transmission of the first channel corresponds to the channel access procedure; or
the grant information for scheduling the transmission of the first channel does not include the channel access parameter indication information when it is determined according to the indication information that the transmission of the first channel does not correspond to the channel access procedure;
wherein the channel access parameter indication information indicates a type of a channel access scheme.
3 . The method according to claim 1 , further comprising:
performing the channel access procedure before the transmission of the first channel when it is determined according to the indication information that the transmission of the first channel corresponds to the channel access procedure; and/or
not performing channel access procedure before the transmission of the first channel when it is determined according to the indication information that the transmission of the first channel does not correspond to the channel access procedure.
4 . The method according to claim 1 , wherein the first channel comprises at least one of:
a Physical Uplink Shared Channel (PUSCH) scheduled by a Downlink Control Information (DCI) format 0_1, a PUSCH scheduled by a DCI format 0_2,a Physical Uplink Control Channel (PUCCH) corresponding to a Physical Downlink Shared Channel (PDSCH) scheduled by a DCI format 1_1, a PUCCH corresponding to a PDSCH scheduled by a DCI format 1_2, a sidelink scheduled by a Sidelink Control Information (SCI) format, or a feedback link corresponding to a sidelink scheduled by an SCI format;
a PUSCH scheduled by a Random Access Response (RAR) uplink grant, a PUSCH scheduled by a fallback Random Access Response (fallbackRAR) uplink grant, a PUCCH corresponding to a successful Random Access Response (successRAR), or a PUSCH scheduled by a DCI format 0_0;
a PUCCH corresponding to a PDSCH scheduled by a DCI format 1_0.
5 . The method according to claim 1 , wherein the first channel comprises at least one of:
a Physical Random Access Channel (PRACH) or a message MsgA, the MsgA including a PRACH and a MsgA PUSCH.
6 . A terminal device, comprising a processor and a memory, the memory storing a computer program and the processor being configured to execute the computer program to implement:
obtaining indication information, wherein the indication information is carried in a system message;
determining whether channel access parameter indication information is included in grant information for scheduling a transmission of a first channel according to the indication information; wherein the channel access parameter indication information indicates a type of a channel access scheme; and
determining whether to enable short control information transmission according to the indication information, wherein the transmission of the first channel does not correspond to a channel access procedure when it is determined according to the indication information to enable the short control information transmission; and the transmission of the first channel corresponds to the channel access procedure when it is determined according to the indication information not to enable the short control information transmission.
7 . A network device, comprising a processor and a memory, the memory storing a computer program and the processor being configured to execute the computer program to implement:
transmitting indication information to a terminal device, wherein the indication information is carried in a system message, and the indication information is used for determining whether channel access parameter indication information is included in grant information for scheduling a transmission of a first channel according to the indication information; wherein the channel access parameter indication information indicates a type of a channel access scheme, and determining whether to enable short control information transmission according to the indication information, wherein the transmission of the first channel does not correspond to a channel access procedure when it is determined according to the indication information to enable the short control information transmission; and the transmission of the first channel corresponds to the channel access procedure when it is determined according to the indication information not to enable the short control information transmission.
8 . The network device according to claim 7 , wherein grant information for scheduling the transmission of the first channel includes channel access parameter indication information when it is determined according to the indication information that the transmission of the first channel corresponds to the channel access procedure; or
the grant information for scheduling the transmission of the first channel does not include the channel access parameter indication information when it is determined according to the indication information that the transmission of the first channel does not correspond to the channel access procedure;
wherein the channel access parameter indication information indicates a type of a channel access scheme.
9 . The network device according to claim 7 , wherein
the channel access procedure is performed before the transmission of the first channel when it is determined according to the indication information that the transmission of the first channel corresponds to the channel access procedure; and/or
no channel access procedure is performed before the transmission of the first channel when it is determined according to the indication information that the transmission of the first channel does not correspond to the channel access procedure.
10 . The network device according to claim 7 , wherein the first channel comprises at least one of:
a Physical Uplink Shared Channel (PUSCH) scheduled by a Downlink Control Information (DCI) format 0_1, a PUSCH scheduled by a DCI format 0_2, a Physical Uplink Control Channel (PUCCH) corresponding to a Physical Downlink Shared Channel (PDSCH) scheduled by a DCI format 1_1, a PUCCH corresponding to a PDSCH scheduled by a DCI format 1_2, a sidelink scheduled by a Sidelink Control Information (SCI) format, or a feedback link corresponding to a sidelink scheduled by an SCI format,
a PUSCH scheduled by a Random Access Response (RAR) uplink grant, a PUSCH scheduled by a fallback Random Access Response (fallbackRAR) uplink grant, a PUCCH corresponding to a successful Random Access Response (successRAR), or a PUSCH scheduled by a DCI format 0_0;
wherein the first channel comprises a PUCCH corresponding to a PDSCH scheduled by a DCI format 1_0.
11 . The network device according to claim 7 , wherein the first channel comprises at least one of:
a Physical Random Access Channel (PRACH) or a message MsgA, the MsgA including a PRACH and a MsgA PUSCH.