Energy detection thresholds for half-duplex and full-duplex communication

1 . A method for wireless communication at a user equipment, the method comprising:

receiving slot format information associated with a slot including an indication of whether the slot is a full-duplex slot or a half-duplex slot;

selecting one of a duplex-specific first energy detection threshold associated with a half-duplex mode and a duplex-specific second energy detection threshold associated with a full-duplex mode based on the slot format information;

performing a listen-before-talk (LBT) procedure comprising

detecting a received energy level at the user equipment; and

transmitting data from the user equipment in response to the received energy level being less than the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold.

2 . The method of claim 1 , wherein the duplex-specific first energy detection threshold is greater than the duplex-specific second energy detection threshold.

3 . The method of claim 1 ,

wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises:

selecting the duplex-specific first energy detection threshold in response to a frequency gap between an uplink bandwidth allocation of the slot and a downlink bandwidth allocation of the slot being greater than a frequency gap threshold, or

selecting the duplex-specific second energy detection threshold in response to the frequency gap being less than the frequency gap threshold.

4 . The method of claim 1 ,

wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises;

selecting the duplex-specific first energy detection threshold in response to a number of times the user equipment failed to gain access to a channel using the duplex-specific second energy detection threshold being equal to or greater than a count threshold, or

selecting the duplex-specific second energy detection threshold in response to the number of times the user equipment failed to gain access to the channel using the duplex-specific second energy detection threshold being less than the count threshold.

5 . The method of claim 1 , wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises:

identifying at least one resource block set that is not available for a transmission by the user equipment during a time slot, wherein the at least one resource block set is between a first resource block set allocated for an uplink transmission by the user equipment during the time slot and a second resource block set allocated for a downlink reception by the user equipment during the time slot; and

selecting the duplex-specific first energy detection threshold in response to identifying the at least one resource block set.

6 . The method of claim 1 , wherein:

detecting the received energy level comprises detecting the received energy level during a time slot; and

transmitting the data comprises transmitting the data during the time slot.

7 . The method of claim 1 , further comprising

transmitting the data within 25 microseconds or less from a time that the received energy level is detected.

8 . A user equipment, comprising:

one or more memories; and

one or more processors coupled to the one or more memories, wherein the one or more processors and the one or more memories are configured to cause the user equipment to:

receive slot format information associated with a slot including an indication of whether the slot is a full-duplex slot or a half-duplex slot;

select one of a duplex-specific first energy detection threshold associated with a half-duplex mode and a duplex-specific second energy detection threshold associated with a full-duplex mode based on the slot format information;

perform a listen-before-talk (LBT) procedure comprising configuring the one or more processors and the one or more memories to cause the user equipment to

detect a received energy level at the user equipment; and

transmit data from the user equipment in response to the received energy level being less than the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold.

9 . The user equipment of claim 8 , wherein

select one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold causes the one or more processors and the one or more memories to be configured to cause the user equipment to:

select the duplex-specific first energy detection threshold in response to a frequency gap between an uplink bandwidth allocation of the slot and a downlink bandwidth allocation of the slot being greater than a frequency gap threshold, or

select the duplex-specific second energy detection threshold in response to the frequency gap being less than the frequency gap threshold.

10 . The user equipment of claim 8 , wherein the

select one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold causes the one or more processors and the one or more memories to be configured to cause the user equipment to:

select the duplex-specific first energy detection threshold in response to a number of times the user equipment failed to gain access to a channel using the duplex-specific second energy detection threshold being equal to or greater than a count threshold, or

select the duplex-specific second energy detection threshold in response to the number of times the user equipment failed to gain access to the channel using the duplex-specific second energy detection threshold being less than the count threshold.

11 . The user equipment of claim 8 , wherein the select one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold causes the one or more processors and the one or more memories to be further configured to cause the user equipment to:

identify at least one resource block set that is not available for a transmission by the user equipment during a time slot, wherein the at least one resource block set is between a first resource block set allocated for an uplink transmission by the user equipment during the time slot and a second resource block set allocated for a downlink reception by the user equipment during the time slot; and

select the duplex-specific first energy detection threshold in response to identifying the at least one resource block set.

12 . A method for wireless communication at a user equipment, the method comprising:

receiving slot format information associated with a slot including an indication of whether the slot is a full-duplex slot or a half-duplex slot;

selecting one of a duplex-specific first energy detection threshold associated with a half-duplex mode and a duplex-specific second energy detection threshold associated with a full-duplex mode based on the slot format information;

performing a listen-before-talk (LBT) procedure comprising:

detecting a received energy level at the user equipment, and

comparing the received energy level to the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold; and

transmitting data from the user equipment in response to the comparing indicating that the received energy level is less than the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold.

13 . The method of claim 12 , wherein the duplex-specific first energy detection threshold is greater than the duplex-specific second energy detection threshold.

14 . The method of claim 12 , further comprising backing off, for a back-off time period, the transmitting the data in response to the received energy level being above the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold.

15 . The method of claim 12 ,

wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises:

selecting the duplex-specific first energy detection threshold in response to a frequency gap between an uplink bandwidth allocation of the slot and a downlink bandwidth allocation of the slot being greater than a frequency gap threshold, or

selecting the duplex-specific second energy detection threshold in response to the frequency gap being less than the frequency gap threshold.

16 . The method of claim 12 ,

wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises:

selecting the duplex-specific first energy detection threshold in response to a number of times the user equipment failed to gain access to a channel using the duplex-specific second energy detection threshold being equal to or greater than a count threshold, or

selecting the duplex-specific second energy detection threshold in response to the number of times the user equipment failed to gain access to the channel using the duplex-specific second energy detection threshold being less than the count threshold.

17 . The method of claim 12 , wherein the selecting one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold further comprises:

identifying at least one resource block set that is not available for a transmission by the user equipment during a time slot, wherein the at least one resource block set is between a first resource block set allocated for an uplink transmission by the user equipment during the time slot and a second resource block set allocated for a downlink reception by the user equipment during the time slot; and

selecting the duplex-specific first energy detection threshold in response to identifying the at least one resource block set.

18 . The method of claim 12 , wherein:

detecting the received energy level comprises detecting the received energy level during a time slot; and

transmitting the data comprises transmitting the data during the time slot.

19 . The method of claim 12 , further comprising transmitting the data within 25 microseconds or less from a time that the received energy level is detected.

20 . A user equipment, comprising:

one or more memories; and

one or more processors coupled to the one or more memories, wherein the one or more processors and the one or more memories are configured to cause the user equipment to:

receive slot format information associated with a slot including an indication of whether the slot is a full-duplex slot or a half-duplex slot;

select one of a duplex-specific first energy detection threshold associated with a half-duplex mode and a duplex-specific second energy detection threshold associated with a full-duplex mode based on the slot format information;

perform a listen-before-talk (LBT) procedure comprising configuring the one or more processors and the one or more memories to cause the user equipment to:

detect a received energy level at the user equipment, and

compare the received energy level to the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold; and

transmit data from the user equipment in response to the comparing indicating that the received energy level is less than the selected one of the duplex-specific first energy detection threshold and the duplex-specific second energy detection threshold.