may include a Access and Mobility Management Function (AMF) 192, other AMFs 193, a Session Management Function (SMF) 194, and a User Plane Function (UPF) 195. The AMF 192 may be in communication with a Unified Data Management (UDM) 196. The AMF 192 is the control node that processes the signaling between the UEs 110 and the 5GC 190. Generally, the AMF 192 provides QoS flow and session management. All user Internet protocol (IP) packets are transferred through the UPF 195. The UPF 195 provides UE IP address allocation as well as other functions. The UPF 195 is connected to the IP Services 197. The IP Services 197 may include the Internet, an intranet, an IP Multimedia Subsystem (IMS), a PS Streaming Service, and/or other IP services.

The base station 105 may also be referred to as a gNB, Node B, evolved Node B (eNB), an access point, a base transceiver station, a radio base station, an access point, an access node, a radio transceiver, a NodeB, eNodeB (eNB), gNB, Home NodeB, a Home eNodeB, a relay, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmit reception point (TRP), or some other suitable terminology. The base station 105 provides an access point to the EPC 160 or 5GC 190 for a UE 110. Examples of UEs 110 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a tablet, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a healthcare device, an implant, a sensor/actuator, a display, or any other similar functioning device. Some of the UEs 110 may be referred to as IoT devices (e.g., parking meter, gas pump, toaster, vehicles, heart monitor, etc.). The UE 110 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communications device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

Referring to FIG. 2, an example implementation of the UE 110 may include the modem 140 having the full duplex communication component 142 and/or the SL-FD component 144. The modem 140 and/or the full duplex communication component 142 of the UE 110 may be configured to implement SL and UL full duplex communication with multi-TRPs, as described in further detail herein. Additionally (or alternatively), the modem 140 and/or the SL-FD component 144 of the UE 110 may be configured to implement SL communication with a multi-TRP of another UE configured for SL and UL full duplex communication via multi-TRPs, as described in further detail herein.

In some implementations, the UE 110 may include a variety of components, including components such as one or more processors 212 and memory 216 and transceiver 202 in communication via one or more buses 244, which may operate in conjunction with the modem 140, the full duplex communication component 142, and/or the SL-FD communication component 144 to enable one or more of the functions related to SL and UL full duplex communication with multi-TRPs. Further, the one or more processors 212, modem 140, memory 216, transceiver 202, RF front end 288 and one or more antennas 265, may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies. The one or more antennas 265 may include one or more antennas, antenna elements and/or antenna arrays.

In an aspect, the one or more processors 212 may include the modem 140 that uses one or more modem processors. The various functions related to the full duplex communication component 142 and/or SL-FD communication component 144 may be included in the modem 140 and/or the processors 212 and, in an aspect, may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors. For example, in an aspect, the one or more processors 212 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with transceiver 202. Additionally, the modem 140 may configure the UE 110 along with the processors 212. In other aspects, some of the features of the one or more processors 212 and/or the modem 140 associated with the full duplex communication component 142 and/or the SL-FD communication component 144 may be performed by the transceiver 202.

Also, the memory 216 may be configured to store data used herein and/or local versions of applications 275 or the full duplex communication component 142 and/or one or more subcomponents of the full duplex communication component 142 and/or the SL-FD communication component 144 and/or one or more subcomponents of the SL-FD communication component 144 being executed by at least one processor 212. The memory 216 may include any type of computer-readable medium usable by a computer or at least one processor 212, such as random access memory (RAM), read only memory (ROM), tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof. In an aspect, for example, the memory 216 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the full duplex communication component 142, SL-FD communication component 144, and/or one or more of their subcomponents, and/or data associated therewith, when the UE 110 is operating at least one processor 212 to execute the full duplex communication component 142, the SL-FD communication component 144, and/or one or more of the subcomponents.

The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and/or software code executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium). The receiver 206 may be, for example, an RF receiving device. In an aspect, the receiver 206 may receive signals transmitted by at least one base station 105. The transmitter 208 may include hardware, firmware, and/or software code executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium). A suitable example of the transmitter 208 may include, but is not limited to, an RF transmitter.

Moreover, in an aspect, the UE 110 may include the RF front end 288, which may operate in communication with one or more antennas 265 and the transceiver 202 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by at least one base station 105 or wireless transmissions transmitted by the UE 110. The RF front end 288 may be coupled with one or more antennas 265 and may include one or more low-noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.

In an aspect, the LNA 290 may amplify a received signal at a desired output level. In an aspect, each of the LNAs 290 may have a specified minimum and maximum gain values. In an aspect, the RF front end 288 may use one or more switches 292 to select a particular LNA 290 and the specified gain value based on a desired gain value for a particular application.

Further, for example, one or more PA(s) 298 may be used by the RF front end 288 to amplify a signal for an RF output at a desired output power level. In an aspect, each of the PAs 298 may have specified minimum and maximum gain values. In an aspect, the RF front end 288 may use one or more switches 292 to select a particular PA 298 and the specified gain value based on a desired gain value for a particular application.

Also, for example, one or more filters 296 may be used by the RF front end 288 to filter a received signal to obtain an input RF signal. Similarly, in an aspect, for example, a respective filter 296 may be used to filter an output from a respective PA 298 to produce an output signal for transmission. In an aspect, each filter 296 may be coupled with a specific LNA 290 and/or PA 298. In an aspect, the RF front end 288 may use one or more switches 292 to select a transmit or receive path using a specified filter 296, the LNA 290, and/or the PA 298, based on a configuration as specified by the transceiver 202 and/or processor 212.

As such, the transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via the RF front end 288. In an aspect, the transceiver 202 may be tuned to operate at specified frequencies such that the UE 110 may communicate with, for example, one or more of the base stations 105 or one or more cells associated with one or more of the base stations 105. In an aspect, for example, the modem 140 may configure the transceiver 202 to operate at a specified frequency and power level based on a UE configuration of the UE 110 and the communication protocol used by the modem 140.

In an aspect, the modem 140 may be a multiband-multimode modem, which may process digital data and communicate with the transceiver 202 such that the digital data is sent and received using the transceiver 202. In an aspect, the modem 140 may be multiband and be configured to support multiple frequency bands for a specific communications protocol. In an aspect, the modem 140 may be multimode and be configured to support multiple operating networks and communications protocols. In an aspect, the modem 140 may control one or more components of the UE 110 (e.g., RF front end 288, transceiver 202) to enable transmission and/or reception of signals from the network based on a specified modem configuration. In an aspect, a modem configuration may be based on the mode of the modem 140 and the frequency band in use. In another aspect, the modem configuration may be based on UE configuration information associated with the UE 110 as provided by the network (e.g., base station 105).

Referring to FIG. 3, an example implementation of the base station 105 may include a modem 314 configured to communicate with UEs 110. In some implementations, the base station 105 may include a variety of components, including components such as one or more processors 312 and memory 316 and transceiver 302 in communication via one or more buses 344, which may operate in conjunction with the modem 314 to enable one or more of the functions related to UE communication described herein. Further, the one or more processors 312, the modem 314, the memory 316, the transceiver 302, a RF front end 388, and one or more antennas 365, may be configured to support voice and/or data calls (simultaneously or non-simultaneously) in one or more radio access technologies. The one or more antennas 365 may include one or more antennas, antenna elements and/or antenna arrays.

In an aspect, the one or more processors 312 may include the modem 314 that uses one or more modem processors. The various functions of the modem 314 and/or the processors 312 may be executed by a single processor, while in other aspects, different ones of the functions may be executed by a combination of two or more different processors. For example, in an aspect, the one or more processors 312 may include any one or any combination of a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiving device processor, or a transceiver processor associated with the transceiver 302. Additionally, the modem 314 may configure the base station 105 and the processors 312. In other aspects, some of the features of the one or more processors 312 and/or the modem 314 may be performed by the transceiver 302.

Also, the memory 316 may be configured to store data used herein and/or local versions of applications 375, and/or one or more subcomponents of the modem 314 being executed by at least one processor 312. The memory 316 may include any type of computer-readable medium usable by a computer or at least one processor 312, such as random access memory (RAM), read only memory (ROM), tapes, magnetic discs, optical discs, volatile memory, non-volatile memory, and any combination thereof. In an aspect, for example, the memory 316 may be a non-transitory computer-readable storage medium that stores one or more computer-executable codes defining the modem 314 and/or one or more of the subcomponents, and/or data associated therewith, when the base station 105 is operating at least one processor 312 to execute the modem 314 and/or one or more of the subcomponents.

The transceiver 302 may include at least one receiver 306 and at least one transmitter 308. The at least one receiver 306 may include hardware, firmware, and/or software code executable by a processor for receiving data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium). The receiver 306 may be, for example, an RF receiving device. In an aspect, the receiver 306 may receive signals transmitted by the UE 110. The transmitter 308 may include hardware, firmware, and/or software code executable by a processor for transmitting data, the code comprising instructions and being stored in a memory (e.g., computer-readable medium). A suitable example of the transmitter 308 may include, but is not limited to, an RF transmitter.

Moreover, in an aspect, the base station 105 may include the RF front end 388, which may operate in communication with one or more antennas 365 and the transceiver 302 for receiving and transmitting radio transmissions, for example, wireless communications transmitted by other base stations 105 or wireless transmissions transmitted by the UE 110. The RF front end 388 may be coupled with one or more antennas 365 and may include one or more low-noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.

In an aspect, the LNA 390 may amplify a received signal at a desired output level. In an aspect, each of the LNAs 390 may have a specified minimum and maximum gain values. In an aspect, the RF front end 388 may use one or more switches 392 to select a particular LNA 390 and the specified gain value based on a desired gain value for a particular application.

Further, for example, one or more PA(s) 398 may be used by the RF front end 388 to amplify a signal for an RF output at a desired output power level. In an aspect, each PA 398 may have specified minimum and maximum gain values. In an aspect, the RF front end 388 may use one or more switches 392 to select a particular PA 398 and the specified gain value based on a desired gain value for a particular application.

Also, for example, one or more filters 396 may be used by the RF front end 388 to filter a received signal to obtain an input RF signal. Similarly, in an aspect, for example, a respective filter 396 may be used to filter an output from a respective PA 398 to produce an output signal for transmission. In an aspect, each filter 396 may be coupled with a specific LNA 390 and/or PA 398. In an aspect, the RF front end 388 may use one or more switches 392 to select a transmit or receive path using a specified filter 396, the LNA 390, and/or the PA 398, based on a configuration as specified by the transceiver 302 and/or the processor 312.

As such, the transceiver 302 may be configured to transmit and receive wireless signals through one or more antennas 365 via the RF front end 388. In an aspect, transceiver may be tuned to operate at specified frequencies such that the base station 105 may communicate with, for example, the UE 110 or one or more cells associated with one or more base station 105. In an aspect, for example, the modem 314 may configure the transceiver 302 to operate at a specified frequency and power level based on the base station configuration of the base station 105 and the communication protocol used by the modem 314.

In an aspect, the modem 314 may be a multiband-multimode modem, which may process digital data and communicate with the transceiver 302 such that the digital data is sent and received using the transceiver 302. In an aspect, the modem 314 may be multiband and be configured to support multiple frequency bands for a specific communications protocol. In an aspect, the modem 314 may be multimode and be configured to support multiple operating networks and communications protocols. In an aspect, the modem 314 may control one or more components of the base station 105 (e.g., RF front end 388, transceiver 302) to enable transmission and/or reception of signals from the network based on a specified modem configuration. In an aspect, the modem configuration may be based on the mode of the modem 314 and the frequency band in use. In another aspect, the modem configuration may be based on a base station configuration associated with the base station 105.

As described herein, multi-TRPs equipped in different parts of a vehicle may be used to improve reliability in safety and other high robustness desired applications. From a transmission point of view, data coverage may be biased. For example, side coverage may not be that important in certain cases, and front or back biased or 360-degree coverage may be dependent on packet content/type. From a receiver point of view, multi-TRPs at a vehicle may use 360-degree coverage. For example, the vehicle may better use both TRPs to receive packets from other vehicles (or user equipments (UEs)).

In an aspect, full duplex may be used by a vehicle. Wireless full duplex communication is a technique which may double a link capacity, theoretically, by enabling radio network nodes to transmit and receive simultaneously on the same frequency and time radio resource. Full duplex may break half duplex operation constrains where transmission and reception either differ in time or in frequency. A full duplex network node, such as a base station or a UE in the cellular network, may communicate simultaneously in UL communications and DL communications with two half duplex panels using the same radio resources.

In V2X communications, a vehicle equipped with multi-TRPs and capable of simultaneous transmission and reception using the same time-frequency radio resource, is referred to as a full duplex capable UE, and may work in both full duplex mode and back-off half duplex mode. In some situations, however, suppressing various interferences for full duplex communications may be difficult to suppress. For example, a UE may see higher self-interference (e.g., reduced signal-interference-noise ratio (SINR)) from a transmission panel to receiving panel, or may see cluster interference from surrounding objects. Thus, a full duplex capable UE may not always work in full duplex mode, due to high interference.

Referring to FIG. 4, two resource allocation modes may be used for SL communication between two UEs, first UE 110 and second UE 110. In a first resource allocation mode 400, a base station 105 may allocate resources for SL communications between the first UE 110 and the second UE 110. For example, the first UE 110 may transmit an SL buffer status report (BSR) 402 to the base station 105 requesting to communicate with the second UE 110 via SL communication. The base station 105 may schedule SL resources when the SL BSR 402 is received and allow SL communications by transmitting (e.g., via a DL control indicator (DCI)) a SL grant 404, containing information on resources for the first UE 110 to connect with the second UE 110, to the first UE 110. As a result, the first UE 110 may sent a SL transmission 406 to the second UE 110. In this allocation mode, the base station 105 may be ignorant of the second UEs information of the SL transmission 406.

In a second resource allocation mode 450, the first UE 110 and the second UE 110 may autonomously select and reserve SL time-frequency resources. Thereby, the first UE 110 may transmit a SL transmission 452 without the use of a base station 105. The second resource allocation mode is focused on for purposes of the present disclosure.

Referring to FIG. 5, a physical channel structure 500 may include a physical SL control channel (PSCCH) 502, a physical SL share channel (PSSCH) 504, a physical SL feedback channel (PSFCH) 506, and gaps 508.

In an example, for resource reservation and physical layer processing, both periodic and aperiodic transmissions may be supported by NR V2X technologies. For example, a transmission may reserve resources in a current slot and in up to one or more (e.g., 2) future slots. For example, a first stage control (SCI-1) signal may be transmitted on the PSCCH 506 and may contain information for resource allocation and decoding second stage control. The PSCCH 506 may be limited to a single sub-channel, and frequency domain and orthogonal cover code (FD-OCC) may be applied to demodulation reference signal (DMRS) to reduce an impact of colliding PSCCH 506 transmissions. Further, a transmitting UE may randomly select from a set of pre-defined FD-OCCs. Next, a second stage control (SCI-2) signal may be transmitted on the PSSCH 502 and may contain information for decoding data shared channel (SCH).

A receiving UE may decode the SCIs (e.g., SCI-1 and SCI-2) first, then decode the data. Next, the receiving UE may send a feedback hybrid automatic repeat request (HARQ) in the PSFCH 506 resource according to a cast type and a feedback mode.

In an aspect, enablement of full duplex communication on SL and UE to base station link (e.g., Uu interface) for a multi-TRP UE may be implemented. For example, a multi-TRP UE has the potential to transmit UL data and receive SL packets on the same frequency-time resource with different TRPs. In the second resource allocation mode, a first UE reserves a SL resource based on a reference signal received power (RSRP) measurement of TRP(s). Meanwhile, the multi-TRP UE may also figure out a feasible receiving beam with beam training process. Furthermore, for a multi-TRP UE with both Uu and SL (or PC5 interface) connectivity, UL transmission and SL reception may be enabled simultaneously, based on a self-interference measurement of a portion of TRPs of the multi-TRP UE.

In the present disclosure, a method of wireless communication is provided that allows a first UE to transmit UL data in a transmission control indicator (TCI), by measuring self-interference and reporting the feasible a receiving beam, and optionally reporting the interference level, to other SL UEs, to enable UL and SL single frequency full duplex communication, so that spectrum efficiency may be improved.

Referring to FIG. 6, a UE 110 may include multi-TRPs positioned in different parts of the UE 110 to improve communication reliability by enabling SL and UL full duplex communication. The UE 110 may be an example of the V2X UE. In an example, a first TRP 612 may be positioned in a rear part of the UE 110, and a second TRP 614 may be positioned in a front part of the UE 110. However, the present disclosure is not limited to this example. Instead, aspects of the present disclosure may include any number of TRPs positioned on any part or location of the UE 110, where any of the multi-TRPs may perform UL communication or SL communication. For example, the first TRP 612 may include a plurality of TRPs configured for SL communication, and the second TRP 614 may include a plurality of TRPs configured for UL communication.

In the example illustrated by FIG. 6, the UE 110 may be configured to transmit and receive packets on the same time-frequency resource with different TRP(s) on UL (Uu interface) and SL (PC5 interface) links. For example, the UE 110 may be configured to conduct UL communication 630 with a base station 105 via the second TRP 614, and may be configured to receive SL communications 632 (e.g., SL packets) from a first SL UE 620 and/or a second SL UE 622 via the first TRP 612. The first SL UE 620 and the second SL UE 622 may be examples of the SL UE 110 of FIG. 1 performing SL communication with the UE 110.

In an aspect, the UE 110 may transmit UL data (e.g., UL communication 630) with a selected TCI state to the base station 105, based on beamforming measurement and refinement procedures. Based on a self-interference measurement, the UE 110 may determine one or more SL receiving beams that may be used for single frequency full duplex in a future resource from other TRP(s) (e.g., first SL UE 620 and second SL UE 622). The UE 110 may announce to SL UEs, including the first SL UE 620 and second SL UE 622, the availability of the one or more receiving SL beams (e.g., receiving configuration indicator (RCI)) and may optionally announce the interference level determined by the self-interference measurement, to enable potential full duplex communication.

The SL UEs (e.g., first SL UE 620 and second SL UE 622) that know the meaning of the RCI announced by the UE 110, due to previous beam training, may transmit a PSCCH or a PSSCH (e.g., SL communication 632) to the UE 110 in slots indicated by the RCI.

Referring to FIG. 7, the UE 110, which is a full duplex capable UE, may determine the RCI and available slots for SL reception. For example, based on a Uu beam management procedure 702 (e.g., beam management procedure between UE 110 and base station 105), the UE 110 may determine a transmission beam (e.g., TCI state) used for UL transmission. The UE 110 may conduct beam tracking and refinement procedures 720 and 722 with other SL UEs (e.g., SL UE 620 and SL UE 622) with, for example, radio resource control (RRC) connected unicast peers.

To enable full duplex communication, the second TRP 614 of the UE 110 may transmit an UL communication 704 (e.g., UL data) to the base station 105 using the determined TCI state while, at the same time, measuring self-interference 712 from the first TRP 612 (e.g., receiving TRPs). Self interference measurements may include, for example, SINR or RSRP levels at the receiving TRP(s) configured for receiving beam sets. If the SINR level or the RSRP level for one or more receiving beams is within a non-interference range (e.g., greater than a threshold), this may indicate that the UE 110 may enable the full duplex communication by transmitting UL data in the TCI state and receiving SL data with the selected one or more RCI states.

With the determined TCI state and RCI state, the UE 110 may transmit a message 730 to announce the RCI state to the first SL UE 620 and the second SL UE 622 (along with any other SL UE), so that the SL UEs, which have the beam pair knowledge with UE 110, may transmit SL data in the proposed future resource to the UE 110 based on beamforming correspondence information. In an example, the UE 110 may announce the message 730 in a unicast mode, a broadcast mode, or a groupcast mode, as part of SL control information (e.g., SCI-2 information). In another example, the message 730 may include an indication of one or more future time slots where the UE 110 is available to receive SL data, along with the indicated RCI state information. In another example, the message 730 may include an indication of self-interference levels measured by the UE 110, along with the indicated RCI state information. In yet another example, the message 730 may include an indication of a single frequency or sub-band full duplex with frequency separation requirements (e.g., number of resource blocks (RBs)), along with the indicated RCI state information.

Based on the RCI state information (and the optional additional information), SL transmissions from one or more the SL UEs may be conducted. For example, upon receiving the message 730, the first SL UE 620 may transmit a SL communication 740 (e.g., PSCCH or PSSCH) to the UE 110 in the SL slots indicated by the message 730, if the first SL UE 620 knows the meaning of the RCI state announced by the UE 110 due to the previous beam training 720. In an example, the first SL UE 620 may perform a feasibility procedure 732 to determine whether transmitting with the indicated beam (e.g., RCI state) is feasible. During the feasibility procedure 732, the first SL UE 620 may compare a threshold to either an interference level from a self interference measurement (e.g., SINR or RSRP measurement) performed by the first SL UE 620 or an interference level indicated by the message 730. If the interference level is within a certain range (e.g., greater than a threshold amount), the first SL UE 620 may determine that communication on the indicated beam is feasible. In response to the feasibility procedure 732, the first SL UE 620 may transmit the SL communication 740 (e.g., PSCCH or PSSCH) to the UE 110 in the SL slots/resources indicated by the message 730. Thus, in this example, the SL communication 740 would be received by the UE 110 on the first TRP 612 concurrently with the UE 110 transmitting a UL transmission 706 on the second TRP 614, allowing the UE 110 to perform SL and UL full duplex communication with multi-TRPs.

In another example, the second SL UE 622 may also receive the message 730 and perform a feasibility procedure 734, using the same operations as described for the feasibility procedure 732. In this example, the second SL UE 622 may determine the radio link between the first UE 110 and the second SL UE 622 is not feasible. For example, the second SL UE 622 may measure an interference level measured (e.g., SINR or RSRP level) and determine the interference level is less than a threshold or is less than the interference level indicated by the message 730. Based on the radio link not being feasible, the second SL UE 622 would not transmit the SL communication 742 in the SL slot/resource indicated by the message 730. Thus, in this example, the UE 110 would not perform SL and UL full duplex communication with multi-TRPs, while transmitting a UL transmission 708.

While the call flow diagram 700 describes an example of the operations for the UE 110 to perform SL and UL full duplex communication with multi-TRPs, the order of the operations is not limited to this described example and one or more of the operations may be performed in out of the described order.

Referring to FIG. 8, an example of a method 800 for SL and UL full duplex communication with multi-TRPs may be performed by the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, the memory 216, and or any other component/subcomponent of the UE 110 of the wireless communication network 100.

At block 802, the method 800 may optionally include determining a transmission beam of a second TRP for UL transmission based on a beam management procedure. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for determining a transmission beam of a second TRP for UL transmission based on a beam management procedure.

For example, the determining the transmission beam by the UE 110 at block 802 may include determining by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110, a transmission beam of the second TRP 614 for UL transmission based on a beam management procedure 702.

At block 804, the method 800 may optionally include performing one or more beam tracking procedures on one or more receiving beams of one or more first TRPs including the first TRP. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for performing one or more beam tracking procedures on one or more receiving beams of one or more first TRPs including the first TRP.

For example, the performing one or more beam tracking procedures by the UE 110 at block 804 may include performing by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110, one or more beam tracking procedures 720 and 722 on one or more receiving beams of one or more first TRPs including the first TRP 612.

At block 806, the method 800 may include determining full duplex communication including simultaneous reception of a SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is available. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for determining full duplex communication including simultaneous reception of a SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is available.

For example, the determining the full duplex communication is available at block 806 may include determining by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110 the full duplex communication including simultaneous reception of SL information from the first SL UE 620 or second SL UE 622 via the first TRP 612 and transmission of the UL information to the base station 105 via the second TRP 614, is available.

At block 808, the method 800 may optionally include performing a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for performing a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP.

For example, the performing the self-interference measurement at block 808 may include performing by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110 performing the self-interference measurement of the receiving beam of the first TRP 612 while simultaneously transmitting UL information to the base station 105 via the second TRP 614.

At block 810, the method 800 may optionally include determining an interference level from the self-interference measurement is within an interference threshold range. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for determining an interference level from the self-interference measurement is within an interference threshold range.

For example, the determining the interference level is within an interference threshold range at block 810 may include determining by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110 an interference level (e.g., SINR level or RSRP level) from the self-interference measurement 712 is within an interference threshold range.

At block 812, the method 800 may include enabling the full duplex communication. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for enabling the full duplex communication.

For example, the enabling the full duplex communication at block 812 may include enabling by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110 the full duplex communication.

At block 814, the method 800 may optionally include transmitting, to the SL UE, a message including RCI state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for transmitting, to the SL UE, a message including RCI state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE.

For example, the transmitting the message at block 814 may include transmitting by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110, to the first SL UE 620 (and/or the second SL UE 622), the message 730 including RCI state information indicating a slot or a resource for the SL UE (e.g., first SL UE 620 or second SL UE 622) to transmit the SL communication 740 to the UE 110.

At block 816, the method 800 may include receiving, from the SL UE in response to the enabling the full duplex communication, the SL communication via the first TRP. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for receiving, from the SL UE in response to the enabling the full duplex communication, the SL communication via the first TRP.

For example, the receiving the SL communication at block 816 may include receiving by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110 the SL communication 740 from the SL UE 620 via the first TRP 612.

At block 818, the method 800 may include transmitting, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP. For example, the full duplex communication component 142, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the UE 110, and/or one or more additional components/subcomponents of the UE 110 may be configured to or may comprise means for transmitting, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.

For example, the transmitting the UL transmission at block 818 may include transmitting by the full duplex communication component 142, the modem 140, the processor 212, the transceiver 202, and/or the memory 216 of the UE 110, to the base station 105 while simultaneously receiving the SL communication 740, the UL transmission 706 via the second TRP 614.

Referring to FIG. 9, an example of a method 900 for SL communication in a full duplex communication system may be performed by the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, the memory 216, and or any other component/subcomponent of the UE 110 of the wireless communication network 100.

At block 902, the method 900 may include receiving, from a UE, a message indicating to transmit a SL communication to the UE and availability of full duplex communication including simultaneous reception of the SL communication by the UE from the SL UE via a first TRP of the UE and transmission of a UL transmission from the UE to a base station via a second TRP of the UE. For example, the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, and/or one or more additional components/subcomponents of the SL UE 110 may be configured to or may comprise means for receiving a message.

For example, the receiving the message at the block 902 may include receiving by the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, via the antenna 265, the RF front end 288, and/or the transceiver 202, from the UE 110, the message 730 indicating to transmit a SL communication to the UE 110 and availability of full duplex communication including simultaneous reception of the SL communication 740 by the UE 110 from the SL UE 110 via the first TRP 612 and transmission of the UL transmission 706 from the UE 110 to the base station 105 via the second TRP 614.

At block 904, the method 900 may include determining whether to transmit the SL communication to the UE in response to the receiving the message. For example, the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, and/or one or more additional components/subcomponents of the SL UE 110 may be configured to or may comprise means for determining whether to transmit the SL communication to the UE in response to the receiving the message.

For example, the determining whether to transmit the SL communication at the block 904 may include determining by the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, determining whether to transmit the SL communication 740 to the UE 110 in response to the receiving the message 730.

At block 906, the method 900 may include transmitting, to the UE, the SL communication in response to the determining. For example, the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, and/or one or more additional components/subcomponents of the SL UE 110 may be configured to or may comprise means for transmitting, to the UE, the SL communication in response to the determining.

For example, the transmitting the SL communication at the block 906 may include transmitting by the SL-FD component 144, the modem 140, the transceiver 202, the processor 212, and/or the memory 216 of the SL UE 110, via the antenna 265, the RF front end 288, and/or the transceiver 202, to the UE 110, the SL communication 740 in response to the determining.

Additional Implementations

An example method of wireless communication by a UE, comprising: determining full duplex communication including simultaneous reception of an SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is available; enabling, in response to the determining the full duplex communication is available, the full duplex communication; receiving, from the SL UE in response to the enabling the full duplex communication, the SL communication via the first TRP; and transmitting, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.

The above example method, wherein the determining the full duplex communication is available comprises: performing a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP; and determining an interference level from the self-interference measurement is within an interference threshold range.

One or more of the above example methods, further comprising: determining a transmission beam of the second TRP for the UL transmission based on a beam management procedure, wherein the performing the self-interference measurement is in response to the determining the transmission beam.

One or more of the above example methods, further comprising: performing one or more beam tracking procedures on one or more receiving beams of one or more first TRPs including the first TRP, wherein the performing the self-interference measurement is in response to the performing the one or more beam tracking procedures.

One or more of the above example methods, wherein the interference level is based on one or more of an SINR level or an RSRP level of the receiving beam of the first TRP.

One or more of the above example methods, wherein enabling the full duplex communication comprises: transmitting, to the SL UE, a message including RCI state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE.

One or more of the above example methods, wherein the message is transmitted in a unicast mode, a broadcast mode, or a groupcast mode.

One or more of the above example methods, wherein the message is transmitted as a part of SL control information.

One or more of the above example methods, wherein the message further indicates information from a self-interference measurement by the UE.

One or more of the above example methods, wherein the message further indicates one or more of a single frequency requirement or a sub-band full duplex with frequency separation requirement. 1001171A second method of wireless communication by an SL UE, comprising: receiving, from a UE, a message indicating to transmit a SL communication to the UE and availability of full duplex communication including simultaneous reception of the SL communication by the UE from the SL UE via a first TRP of the UE and transmission of a UL transmission from the UE to a base station via a second TRP of the UE; determining whether to transmit the SL communication to the UE in response to the receiving the message; and transmitting, to the UE, the SL communication in response to the determining.

The above second example method, wherein the message includes RCI state information indicating a slot or a resource for the SL UE to transmit the SL communication to the UE.

One or more of the above second example methods, wherein the message is transmitted in a unicast mode, a broadcast mode, or a groupcast mode.

One or more of the above second example methods, wherein the message is transmitted as a part of SL control information.

One or more of the above second example methods, wherein the message further indicates one or more of a single frequency requirement or a sub-band full duplex with frequency separation requirement.

One or more of the above second example methods, wherein the determining whether to transmit the SL communication to the UE comprises: comparing an interference measurement level of a SL beam between the SL UE and the UE to an interference threshold amount; and transmitting the SL communication in response to the interference measurement level being within an interference threshold range.

One or more of the above second example methods, further comprising:

- performing an interference measurement on the SL beam to obtain the interference measurement level.

One or more of the above second example methods, wherein the message further indicates the interference measurement level.

An example UE, comprising: a memory storing instructions; and one or more processors communicatively coupled with the memory and configured to: determine full duplex communication including simultaneous reception of an SL communication from an SL UE via a first TRP of the UE and transmission of a UL transmission to a base station via a second TRP of the UE, is available; enable, in response to determining the full duplex communication is available, the full duplex communication; receive, from the SL UE in response to enabling the full duplex communication, the SL communication via the first TRP; and transmit, to the base station while simultaneously receiving the SL communication, the UL transmission via the second TRP.

The above example UE, wherein the one or more processors is further configured to: perform a self-interference measurement of a receiving beam of the first TRP while simultaneously transmitting UL information to the base station via the second TRP; and determine an interference level from the self-interference measurement is within an interference threshold range, wherein determining the full duplex communication is available is in response to determining the interference level.

One or more of the above example UEs, wherein the one or more processors is further configured to: determine a transmission beam of the second TRP for the UL transmission based on a beam management procedure, wherein performing the self-interference measurement is in response to determining the transmission beam.

One or more of the above example UEs, wherein the one or more processors is further configured to: perform one or more beam tracking procedures on one or more receiving beams of one or more first TRPs including the first TRP, wherein performing the self-interference measurement is in response to performing the one or more beam tracking procedures.

One or more of the above example UEs, wherein the interference level is based on one or more of an SINR level or an RSRP level of the receiving beam of the first TRP.