Listen before talk (lbt) techniques
AssigneeZte Corporation
InventorLi ZHANG
Life of this patent
Estimating the term…
Abstract
Techniques are described to perform listen before talk (LBT). An example wireless communication method includes receiving, by a communication node, an indication of one or more reference signals configured by a network node; and performing a failure recovery procedure upon determining that a number of listen before talk (LBT) failures reached a threshold, where the communication node determines that an LBT failure has occurred in response to determining that an LBT operation has failed for transmitting, in an active bandwidth part (BWP), a beam that includes a reference signal from the one or more reference signals.
Claims20
A wireless communication method, comprising:
- determining, by a communication node, one or more reference signals or one or more channels with which to determine a listen before talk (LBT) failure;
- and
- performing a failure recovery procedure upon determining that a number of LBT failures reached a threshold,
- wherein the communication node determines that an LBT failure has occurred in an active bandwidth part (BWP) in response to:
- (1) determining that an LBT operation has failed for and transmitting, in an active bandwidth part (BWP), a first beam that includes a reference signal from the one or more reference signals, or
- (2) determining that the LBT operation has failed for transmitting, in the active BWP, a second beam corresponding to a channel from the one or more channels.
An apparatus for wireless communication comprising a processor, configured to implement a method, comprising:
- determine, by a communication node, one or more reference signals or one or more channels with which to determine a listen before talk (LBT) failure;
- and
- perform a failure recovery procedure upon determining that a number of LBT failures reached a threshold,
- wherein the communication node determines that an LBT failure has occurred in an active bandwidth part (BWP) in response to:
- (1) determining that an LBT operation has failed for and transmitting, in an active bandwidth part (BWP), a first beam that includes a reference signal from the one or more reference signals, or
- (2) determining that the LBT operation has failed for transmitting, in the active BWP, a second beam corresponding to a channel from the one or more channels.
A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a method, comprising:
- determining, by a communication node, one or more reference signals or one or more channels with which to determine a listen before talk (LBT) failure;
- and
- performing a failure recovery procedure upon determining that a number of LBT failures reached a threshold,
- wherein the communication node determines that an LBT failure has occurred in an active bandwidth part (BWP) in response to:
- (1) determining that an LBT operation has failed for and transmitting, in an active bandwidth part (BWP), a first beam that includes a reference signal from the one or more reference signals, or
- (2) determining that the LBT operation has failed for transmitting, in the active BWP, a second beam corresponding to a channel from the one or more channels.
Dependencies are inferred from the claim text.