Patent ID: 11937295
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for sending a discovery signal, comprising:
detecting whether a first time-frequency resource corresponding to a discovery signal to be sent is occupied according to a first listen before talk (LBT) mechanism;
in response to detecting for n times that the first time-frequency resource corresponding to the discovery signal to be sent is occupied according to the first LBT mechanism, detecting whether a second time-frequency resource corresponding to the discovery signal to be sent is occupied according to a second LBT mechanism; wherein the second time-frequency resource is a next time-frequency resource to the first time-frequency resource, the second LBT mechanism is a long-rule LBT mechanism with respect to the first LBT mechanism, and n is a positive integer meeting a preset first number threshold;
in response to detecting that the second time-frequency resource corresponding to the discovery signal to be sent is not occupied according to the second LBT mechanism, sending the discovery signal in the unoccupied second time-frequency resource according to the second LBT mechanism; and
in response to detecting for I times that the second time-frequency resource corresponding to the discovery signal to be sent is not occupied according to the second LBT mechanism, detecting whether the first time-frequency resource corresponding to the discovery signal to be sent is occupied according to the first LBT mechanism, wherein I is a positive integer meeting a preset second number threshold.