Wireless communication method, network device and terminal device

A wireless communication method, comprising:

• determining, by a terminal device, M candidate time positions for a Synchronization Signal (SS) block, wherein the M candidate time positions comprise candidate time positions where a monitoring result obtained by a network device indicates that a carrier of an unlicensed band is idle and candidate time positions where the monitoring result indicates that the carrier is not idle, the SSB is sent only on the candidate time positions where the monitoring result indicates that the carrier is idle, the M candidate time positions are at least part of L candidate time positions of the SS block, and the L candidate time positions are all candidate time positions in a single sending period of the SS block;
• performing, by the terminal device only based on the M candidate time positions, signal reception on the carrier to acquire the SS block;
• and
• receiving, by the terminal device on the carrier in the unlicensed band, first indication information sent by the network device, the first indication information being configured to indicate:
• the M candidate time positions or a value of M;
• and
• a value of N, N being a number of beams that the network device expects to send and N being a positive integer less than or equal to M,
• wherein the method further comprises:
• receiving an occupancy signal between two adjacent candidate time positions of the M candidate time positions for transmission of the SSB.

A network device, comprising a processor and a transceiver, wherein

• the processor is configured to monitor, only based on M candidate time positions for a Synchronization Signal (SS) block, whether a carrier in an unlicensed band is idle, wherein the M candidate time positions comprise candidate time positions where a monitoring result indicates that the carrier is idle and candidate time positions where the monitoring result indicates that the carrier is not idle, the SSB is sent only on the candidate time positions where the monitoring result indicates that the carrier is idle, the M candidate time positions are at least part of L candidate time positions of the SS block, and the L candidate time positions are all candidate time positions in a single sending cycle of the SS block;
• and
• the transceiver is further configured to send first indication information through the carrier in the unlicensed band, the first indication information being configured to indicate:
• the M candidate time positions or a value of M;
• and
• a value of N, N being a number of beams that the network device expects to send and N being a positive integer less than or equal to M,
• wherein the processor is further configured to send an occupancy signal between two adjacent candidate time positions of the M candidate time positions for transmission of the SSB.

A terminal device, comprising a processor and a transceiver, wherein

• the processor is configured to determine M candidate time positions for a Synchronization Signal (SS) block, wherein the M candidate time positions comprise candidate time positions where a monitoring result obtained by a network device indicates that a carrier of an unlicensed band is idle and candidate time positions where the monitoring result indicates that the carrier is not idle, the SSB is sent only on the candidate time positions where the monitoring result indicates that the carrier is idle, the M candidate time positions are at least part of L candidate time positions of the SS block, and the L candidate time positions are all candidate time positions in a single sending cycle of the SS block;
• the transceiver is configured to perform, only based on the M candidate time positions, signal reception on the carrier to acquire the SS block;
• and
• the transceiver is further configured to receive first indication information sent by the network device on the carrier in the unlicensed band, the first indication information being configured to indicate:
• the M candidate time positions or a value of M;
• and/or
• a value of N, N being a number of beams that the network device expects to send and N being a positive integer less than or equal to M,
• wherein the processor is further configured to receive an occupancy signal between two adjacent candidate time positions of the M candidate time positions for transmission of the SSB.