Methods and apparatus for partial sensing under sidelink discontinuous reception mechanisms
A method performed by a user equipment (UE) is provided. In the method, one or more first resource pool configurations for one or more sidelink transmission resource pools are received. Each first resource pool configuration includes a partial sensing indication of whether to perform partial sensing on a corresponding sidelink transmission resource pool in a Sidelink Discontinuous Reception (SL-DRX) inactive time. The SL-DRX inactive time is determined based on a set of SL-DRX configurations stored in the UE. In the method, the partial sensing is performed, based on the partial sensing indication of each first resource pool configuration, on the corresponding sidelink transmission resource pool while the UE is implementing sidelink packet transmission.
1 . A method performed by a User Equipment (UE), the method comprising:
receiving one or more first resource pool configurations for one or more sidelink transmission resource pools, each first resource pool configuration comprising a partial sensing indication of whether to perform a partial sensing procedure on a corresponding sidelink transmission resource pool during a Sidelink Discontinuous Reception (SL-DRX) inactive time, the SL-DRX inactive time being determined based on a set of SL-DRX configurations stored in the UE; and
performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool while the UE is performing a sidelink packet transmission.
2 . The method of claim 1 , wherein performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool comprises:
during the SL-DRX inactive time, not performing the partial sensing procedure on the sidelink transmission resource pool that corresponds to the partial sensing indication of not performing the partial sensing procedure during the SL-DRX inactive time.
3 . The method of claim 2 , wherein performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool further comprises:
during the SL-DRX inactive time, performing the partial sensing procedure on the sidelink transmission resource pool that corresponds to the partial sensing indication of performing the partial sensing procedure during the SL-DRX inactive time.
4 . The method of claim 1 , wherein performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool comprises performing sidelink packet reception of Physical Sidelink Control Channels (PSCCHs) and Sidelink Reference Signal Received Power (SL-RSRP) measurement associated with the corresponding sidelink transmission resource pool.
5 . The method of claim 1 , wherein each sidelink transmission resource pool is a sidelink normal transmission resource pool or a sidelink exceptional transmission resource pool.
6 . The method of claim 1 , further comprising:
receiving a second resource pool configuration for a specific sidelink transmission resource pool of the one or more sidelink transmission resource pools after receiving the one or more first resource pool configurations; and
in a case that the second resource pool configuration does not include the partial sensing indication and the specific sidelink transmission resource pool corresponds to the first resource pool configuration comprising the partial sensing indication of not performing the partial sensing procedure, restarting to perform the partial sensing procedure on the specific sidelink transmission resource pool during the SL-DRX inactive time.
7 . The method of claim 1 , further comprising:
determining whether the UE is in the SL-DRX inactive time based on one or more activated SL-DRX configurations in the set of SL-DRX configurations,
wherein the one or more activated SL-DRX configurations in the set of SL-DRX configurations are associated with a Layer-2 Destination ID (identifier) stored in the UE.
8 . The method of claim 1 , wherein:
each first resource pool configuration is received from a first source associated with at least one of:
an SL pre-configuration,
an SL configuration from a first serving cell through a first Uu interface via broadcasting system information or UE-specific dedicated control signaling, or
an SL configuration from another UE via a PC5 air interface through Radio Resource Control (RRC) signaling,
the method further comprises receiving the set of SL-DRX configurations from a second source associated with at least one of:
the SL pre-configuration,
the SL configuration from a second serving cell through a second Uu interface via broadcasting system information or UE-specific dedicated control signaling, or
the SL configuration from another UE via the PC5 air interface through RRC signaling, and
the first source and the second source are independent.
9 . The method of claim 8 , wherein the first serving cell is an Evolved Universal Terrestrial Radio Access (E-UTRA) cell or a New Radio (NR) cell, the second serving cell is an E-UTRA cell or an NR cell, the first Uu interface is an E-UTRA Uu interface or an NR Uu interface, and the second Uu interface is an E-UTRA Uu interface or an NR Uu interface, wherein the first serving cell and the second serving cell are independent.
10 . A User Equipment (UE), comprising:
one or more non-transitory computer-readable media storing one or more computer-executable instructions; and
at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the one or more computer-executable instructions to cause the UE to:
receive, using the transceiver, one or more first resource pool configurations for one or more sidelink transmission resource pools, each first resource pool configuration comprising a partial sensing indication of whether to perform a partial sensing procedure on a corresponding sidelink transmission resource pool during a Sidelink Discontinuous Reception (SL-DRX) inactive time, the SL-DRX inactive time being determined based on a set of SL-DRX configurations stored in the memory; and
perform, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool while the UE is performing a sidelink packet transmission.
11 . The UE of claim 10 , wherein the UE performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool comprises:
during the SL-DRX inactive time, not performing partial sensing procedure on the sidelink transmission resource pool that corresponds to the partial sensing indication of not performing partial sensing procedure in the SL-DRX inactive time.
12 . The UE of claim 11 , wherein the UE performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool further comprises:
during the SL-DRX inactive time, performing the partial sensing procedure on the sidelink transmission resource pool that corresponds to the partial sensing indication of performing the partial sensing procedure during the SL-DRX inactive time.
13 . The UE of claim 10 , wherein the UE performing, based on the partial sensing indication of each first resource pool configuration, the partial sensing procedure on the corresponding sidelink transmission resource pool comprises performing sidelink packet reception of Physical Sidelink Control Channels (PSCCHs) and Sidelink Reference Signal Received Power (SL-RSRP) measurement associated with the corresponding sidelink transmission resource pool.
14 . The UE of claim 10 , wherein each sidelink transmission resource pool is a sidelink normal transmission resource pool or a sidelink exceptional transmission resource pool.
15 . The UE of claim 10 , wherein the one or more computer-executable instructions, when executed by the at least one processor, further cause the UE to:
receive, using the transceiver, a second resource pool configuration for a specific sidelink transmission resource pool of the one or more sidelink transmission resource pools after receiving the one or more first resource pool configurations; and
in a case that the second resource pool configuration does not include the partial sensing indication and the specific sidelink transmission resource pool corresponds to the first resource pool configuration comprising the partial sensing indication of not performing the partial sensing procedure, restart to perform the partial sensing procedure on the specific sidelink transmission resource pool during the SL-DRX inactive time.
16 . The UE of claim 10 , wherein the one or more computer-executable instructions, when executed by the at least one processor, further cause the UE to:
determine whether the UE is in the SL-DRX inactive time based on one or more activated SL-DRX configurations in the set of SL-DRX configurations stored in the memory,
wherein the one or more activated SL-DRX configurations in the set of SL-DRX configurations are associated with one a Layer-2 Destination ID (identifier) stored in the memory.
17 . The UE of claim 10 , wherein:
each first resource pool configuration is received from a first source associated with at least one of:
an SL pre-configuration,
an SL configuration from a first serving cell through a first Uu interface via broadcasting system information or UE-specific dedicated control signaling, or
an SL configuration from another UE via a PC5 air interface through Radio Resource Control (RRC) signaling,
the computer-executable instructions, when executed by the processing circuitry, further cause the UE to receive the set of SL-DRX configurations from a second source associated with at least one of:
the SL pre-configuration,
the SL configuration from a second serving cell through a second Uu interface via broadcasting system information or UE-specific dedicated control signaling, or
the SL configuration from another UE via the PC5 air interface through RRC signaling, and
the first source and the second source are independent.
18 . The UE of claim 17 , wherein the first serving cell is an Evolved Universal Terrestrial Radio Access (E-UTRA) cell or a New Radio (NR) cell, the second serving cell is an E-UTRA cell or an NR cell, the first Uu interface is an E-UTRA Uu interface or an NR Uu interface, and the second Uu interface is an E-UTRA Uu interface or an NR Uu interface, wherein the first serving cell and the second serving cell are independent.