SL and UL full-duplex determination in resource allocation mode 1
Apparatus, methods, and computer program products for full-duplex determination are provided. An example method includes transmitting a Uu signal from the UE. The example method further includes performing a self-interference measurement (SIM) of the Uu signal for full-duplex reception at the UE using the sidelink interface.
1 . A method of wireless communication at a user equipment (UE) comprising:
transmitting a Uu signal, wherein the UE has a Uu connection with a network node, and wherein the UE has a capability for full-duplex communication based on the Uu connection and a sidelink interface;
performing a self-interference measurement (SIM) of the Uu signal for full-duplex reception at the UE using the sidelink interface; and
transmitting, to the network node, full-duplex information based on the SIM of the Uu signal for the full-duplex reception at the UE using the sidelink interface, wherein the full-duplex information indicates an uplink transmission configuration indicator (TCI) state associated with one or more uplink beams on which the UE supports Uu transmission on the one or more uplink beams and reception on a sidelink beam in a full-duplex mode.
2 . The method of claim 1 , wherein transmitting the Uu signal further includes transmitting the Uu signal from a first transmission reception point (TRP) of the UE, and performing the SIM further includes performing the SIM for the full-duplex reception at one or more candidate TRPs of the UE, wherein each of the one or more candidate TRPs is different than the first TRP from which the Uu signal is transmitted.
3 . The method of claim 2 , wherein performing the SIM further includes performing the SIM for the full-duplex reception at multiple candidate TRPs of the UE.
4 . The method of claim 1 , wherein transmitting the Uu signal further includes transmitting from a first set of antenna elements comprised in an antenna array of the UE and performing the SIM further includes performing for the full-duplex reception at a second set of antenna elements comprised in the antenna array of the UE.
5 . The method of claim 1 , wherein the full-duplex information comprises a time parameter during which the UE has the capability for uplink transmission using the uplink TCI state and sidelink reception in the full-duplex mode.
6 . The method of claim 5 , wherein the time parameter comprises a set of one or more slots.
7 . The method of claim 6 , wherein the full-duplex information comprises identifier (ID) information for a transmitting UE from which the UE will receive sidelink communication during the set of one or more slots.
8 . The method of claim 7 , wherein the ID information comprises at least one of a source ID or a destination ID.
9 . The method of claim 1 , wherein the full-duplex information further indicates a full-duplex configuration supported by the UE.
10 . The method of claim 9 , wherein the full-duplex configuration comprises a single frequency full-duplex configuration.
11 . The method of claim 9 , wherein the full-duplex configuration comprises a sub-band full-duplex configuration including a frequency separation parameter.
12 . The method of claim 1 , wherein the full-duplex information further indicates an uplink capability that the UE supports in the full-duplex mode that is different than a second uplink capability that the UE supports in a half-duplex mode.
13 . The method of claim 1 , wherein the full-duplex information further indicates a timing advance adjustment or a power headroom report that the UE supports in the full-duplex mode and not in a half-duplex mode.
14 . The method of claim 1 , wherein the UE transmits the full-duplex information to the network node in radio resource control (RRC) signaling.
15 . The method of claim 1 , further comprising:
transmitting an uplink request to the network node for a SIM resource for the SIM at the UE using the sidelink interface; and
receiving an allocation of one or more SIM resources from the network node in response to the uplink request.
16 . The method of claim 15 , wherein the one or more SIM resources of the allocation include a time and frequency resource, and wherein transmitting the Uu signal further comprises:
transmitting a self-interference sequence in the time and frequency resource.
17 . The method of claim 15 , wherein the allocation comprises one or more of:
a semi-static resource allocation,
a periodic sounding reference signal (SRS) resource; or
an aperiodic SRS resource.
18 . A method of wireless communication at a user equipment (UE) comprising:
transmitting an uplink request to a network node for a self-interference measurement (SIM) resource for SIM at the UE using a sidelink interface, wherein the UE has a Uu connection with the network node, and wherein the UE has a capability for full-duplex communication based on the Uu connection and the sidelink interface;
receiving an allocation of one or more SIM resources from the network node in response to the uplink request, wherein the one or more SIM resources of the allocation include a time and frequency resource;
transmitting a Uu signal that includes a self-interference sequence in the time and frequency resource, wherein transmission of the Uu signal is based on one or more candidate uplink transmission configuration indicator (TCI) states; and
performing the SIM of the Uu signal for full-duplex reception at the UE using the sidelink interface for each of a set of one or more sidelink reception beams paired with the one or more candidate uplink TCI states.
19 . The method of claim 18 , further comprising:
determining one or more combinations of an uplink TCI state and a sidelink reception beam for performing the full-duplex communication.
20 . A method of wireless communication at a network node, comprising:
receiving, from a user equipment (UE) with which the network node has a Uu connection, full-duplex information for a full-duplex mode of the UE, the full-duplex mode including Uu transmission and sidelink reception at the UE, wherein the full-duplex information indicates an uplink transmission configuration indicator (TCI) state associated with one or more uplink beams for which the UE supports the Uu transmission and the sidelink reception on a sidelink beam in the full-duplex mode; and
scheduling uplink resources for the UE based on the uplink TCI state indicated in the full-duplex information.
21 . The method of claim 20 , further comprising:
receiving a request for full-duplex communication; and
allocating one or more self-interference measurement (SIM) resources for the UE to transmit an uplink signal for measurement of SIM for full-duplex sidelink reception.
22 . The method of claim 21 , wherein the one or more SIM resources comprise a semi-static resource allocation.
23 . The method of claim 21 , wherein the one or more SIM resources comprise a periodic or an aperiodic sounding reference signal (SRS) resource.
24 . An apparatus for wireless communication at a user equipment (UE) comprising:
memory; and
one or more processors coupled to the memory and configured to cause the UE to:
transmit a Uu signal, wherein the UE has a Uu connection with a network node, and wherein the UE has a capability for full-duplex communication based on the Uu connection and a sidelink interface;
perform a self-interference measurement (SIM) of the Uu signal for full-duplex reception at the UE using the sidelink interface; and
transmit, to the network node, full-duplex information based on the SIM of the Uu signal for the full-duplex reception at the UE using the sidelink interface, wherein the full-duplex information indicates an uplink transmission configuration indicator (TCI) state associated with one or more uplink beams on which the UE supports Uu transmission on the one or more uplink beams and reception on a sidelink beam in a full-duplex mode.
25 . The apparatus of claim 24 , wherein the one or more processors are further configured to cause the UE to:
transmit an uplink request to the network node for a SIM resource for the SIM at the UE using the sidelink interface; and
receive an allocation of one or more SIM resources from the network node in response to the uplink request.
26 . The apparatus of claim 25 , wherein the one or more SIM resources of the allocation include a time and frequency resource, and wherein to transmit the Uu signal, the one or more processors are further configured to cause the UE to:
transmit a self-interference sequence in the time and frequency resource.
27 . The apparatus of claim 26 , wherein a transmission of the self-interference sequence is based on one or more candidate uplink transmission configuration indicator (TCI) states, and wherein to perform the SIM, the one or more processors are configured to cause the UE to perform the SIM for each of a set of one or more sidelink reception beams paired with the one or more candidate uplink TCI states, and wherein the one or more processors are further configured to cause the UE to:
determine one or more combinations of an uplink TCI state and a sidelink reception beam for performing the full-duplex communication.
28 . An apparatus for wireless communication at a network node, comprising:
memory; and
one or more processors coupled to the memory and configured to cause the network node to:
receive, from a user equipment (UE) with which the network node has a Uu connection, full-duplex information for a full-duplex mode of the UE that is based on Uu transmission and sidelink reception, wherein the full-duplex information indicates an uplink transmission configuration indicator (TCI) state associated with one or more uplink beams for which the UE supports the Uu transmission and the sidelink reception on a sidelink beam in the full-duplex mode; and
schedule uplink resources for the UE based on the uplink TCI state indicated in the full-duplex information.
29 . The apparatus of claim 28 , wherein the one or more processors are further configured to cause the network node to:
receive a request for full-duplex communication; and
allocate one or more self-interference measurement (SIM) resources for the UE to transmit an uplink signal for measurement of SIM for full-duplex sidelink reception.
30 . An apparatus for wireless communication at a user equipment (UE) comprising:
memory; and
one or more processors coupled to the memory and configured to cause the UE to:
transmit an uplink request to a network node for a self-interference measurement (SIM) resource for SIM at the UE using a sidelink interface, wherein the UE has a Uu connection with the network node, and wherein the UE has a capability for full-duplex communication based on the Uu connection and a sidelink interface;
receive an allocation of one or more SIM resources from the network node in response to the uplink request, wherein the one or more SIM resources of the allocation include a time and frequency resource;
transmit a Uu signal that includes a self-interference sequence in the time and frequency resource, wherein transmission of the Uu signal is based on one or more candidate uplink transmission configuration indicator (TCI) states; and
perform the SIM of the Uu signal for full-duplex reception at the UE using the sidelink interface for each of a set of one or more sidelink reception beams paired with the one or more candidate uplink TCI states.
31 . The apparatus of claim 30 , wherein the allocation comprises one or more of:
a semi-static resource allocation,
a periodic sounding reference signal (SRS) resource; or
an aperiodic SRS resource.