WO2022183311A1 - Signalisation de liaison montante pour liaison montante et liaison latérale simultanées avec de multiples points de réception d'émission - Google Patents

Signalisation de liaison montante pour liaison montante et liaison latérale simultanées avec de multiples points de réception d'émission Download PDF

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Publication number
WO2022183311A1
WO2022183311A1 PCT/CN2021/078410 CN2021078410W WO2022183311A1 WO 2022183311 A1 WO2022183311 A1 WO 2022183311A1 CN 2021078410 W CN2021078410 W CN 2021078410W WO 2022183311 A1 WO2022183311 A1 WO 2022183311A1
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WIPO (PCT)
Prior art keywords
sidelink
uplink
information
communications
base station
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PCT/CN2021/078410
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English (en)
Inventor
Hui Guo
Kapil Gulati
Navid Abedini
Junyi Li
Shuanshuan Wu
Sourjya Dutta
Anantharaman Balasubramanian
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Qualcomm Incorporated
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Priority to PCT/CN2021/078410 priority Critical patent/WO2022183311A1/fr
Publication of WO2022183311A1 publication Critical patent/WO2022183311A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for uplink signaling for concurrent uplink and sidelink with multiple transmit receive points.
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like) .
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) .
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) .
  • a UE may communicate with a BS via the downlink and uplink.
  • Downlink or “forward link” refers to the communication link from the BS to the UE
  • uplink or “reverse link” refers to the communication link from the UE to the BS.
  • a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, or the like.
  • NR which may also be referred to as 5G
  • 5G is a set of enhancements to the LTE mobile standard promulgated by the 3GPP.
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • MIMO multiple-input multiple-output
  • a method of wireless communication performed by a user equipment includes generating information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first transmit receive point (TRP) of the UE; a set of sounding reference signal (SRS) resource indicators (SRIs) for transmission of uplink communications from a second TRP of the UE to a base station; or a source identifier (ID) of another UE from which the UE receives sidelink communications at the first TR.
  • the method may include transmitting the information to the base station.
  • a method of wireless communication performed by a base station includes receiving, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications.
  • the method may include transmitting an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • a UE for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to generate information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of SRIs for transmission of uplink communications from a second TRP of the UE to a base station; or a source ID of another UE from which the UE receives sidelink communications at the first TRP.
  • the memory and the one or more processors may be configured to transmit the information to the base station.
  • a base station for wireless communication includes a memory and one or more processors operatively coupled to the memory, the memory and the one or more processors configured to receive, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications.
  • the memory and the one or more processors may be configured to transmit an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a UE, cause the UE to generate information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of SRIs for transmission of uplink communications from a second TRP of the UE to a base station; or a source ID of another UE from which the UE receives sidelink communications at the first TRP, and transmit the information to the base station.
  • a non-transitory computer-readable medium storing a set of instructions for wireless communication includes one or more instructions that, when executed by one or more processors of a base station, cause the base station to receive, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications, and transmit an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • an apparatus for wireless communication includes means for generating information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the apparatus; a set of SRIs for transmission of uplink communications from a second TRP of the apparatus to a base station; or a source ID of another apparatus from which the apparatus receives sidelink communications at the first TRP, and means for transmitting the information to the base station.
  • an apparatus for wireless communication includes means for receiving, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications, and means for transmitting an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios.
  • Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements.
  • some aspects may be implemented via integrated chip embodiments or other non-module-component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, or artificial intelligence-enabled devices) .
  • Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, or system-level components.
  • Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects.
  • transmission and reception of wireless signals may include a number of components for analog and digital purposes (e.g., hardware components including antenna, RF chains, power amplifiers, modulators, buffer, processor (s) , interleaver, adders, or summers) . It is intended that aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, or end-user devices of varying size, shape, and constitution.
  • Fig. 1 is a diagram illustrating an example of a wireless network, in accordance with the present disclosure.
  • Fig. 2 is a diagram illustrating an example of a base station in communication with a UE in a wireless network, in accordance with the present disclosure.
  • Fig. 3 is a diagram illustrating an example of sidelink communications, in accordance with the present disclosure.
  • Fig. 4 is a diagram illustrating an example of sidelink communications and access link communications, in accordance with the present disclosure.
  • Fig. 5 is a diagram illustrating an example of a vehicle with multiple transmit receive points (TRPs) , in accordance with the present disclosure.
  • Fig. 6 is a diagram illustrating an example of interference in sidelink and uplink communications, in accordance with the present disclosure.
  • Figs. 7A-7B are diagrams illustrating an example of uplink signaling for concurrent uplink and sidelink with multiple TRPs, in accordance with the present disclosure.
  • Fig. 8 is a diagram illustrating an example process performed, for example, by a UE, in accordance with the present disclosure.
  • Fig. 9 is a diagram illustrating an example process performed, for example, by a base station, in accordance with the present disclosure.
  • Figs. 10-11 are block diagrams of example apparatuses for wireless communication, in accordance with the present disclosure.
  • aspects may be described herein using terminology commonly associated with a 5G or NR radio access technology (RAT) , aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G) .
  • RAT radio access technology
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (NR) network and/or an LTE network, among other examples.
  • the wireless network 100 may include a number of base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities.
  • a base station (BS) is an entity that communicates with user equipment (UEs) and may also be referred to as an NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , or the like.
  • Each BS may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) .
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • a BS 110a may be a macro BS for a macro cell 102a
  • a BS 110b may be a pico BS for a pico cell 102b
  • a BS 110c may be a femto BS for a femto cell 102c.
  • a BS may support one or multiple (e.g., three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.
  • Wireless network 100 may also include relay stations.
  • a relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that can relay transmissions for other UEs.
  • a relay BS 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay BS may also be referred to as a relay station, a relay base station, a relay, or the like.
  • Wireless network 100 may be a heterogeneous network that includes BSs of different types, such as macro BSs, pico BSs, femto BSs, relay BSs, or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100. For example, macro BSs may have a high transmit power level (e.g., 5 to 40 watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .
  • macro BSs may have a high transmit power level (e.g., 5 to 40 watts)
  • pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts) .
  • a network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs.
  • Network controller 130 may communicate with the BSs via a backhaul.
  • the BSs may also communicate with one another directly or indirectly, via a wireless or wireline backhaul.
  • UEs 120 may be dispersed throughout wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, or the like.
  • a UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL wireless local loop
  • Some UEs may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, and/or location tags, that may communicate with a base station, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices.
  • IoT Internet-of-Things
  • NB-IoT narrowband internet of things
  • UE 120 may be included inside a housing that houses components of UE 120, such as processor components and/or memory components.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular RAT and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, or the like.
  • a frequency may also be referred to as a carrier, a frequency channel, or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) .
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol or a vehicle-to-infrastructure (V2I) protocol) , and/or a mesh network.
  • V2X vehicle-to-everything
  • the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Devices of wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided based on frequency or wavelength into various classes, bands, channels, or the like.
  • devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1) , which may span from 410 MHz to 7.125 GHz, and/or may communicate using an operating band having a second frequency range (FR2) , which may span from 24.25 GHz to 52.6 GHz.
  • FR1 first frequency range
  • FR2 second frequency range
  • the frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies.
  • FR1 is often referred to as a “sub-6 GHz” band.
  • FR2 is often referred to as a “millimeter wave” band despite being different from the extremely high frequency (EHF) band (30 GHz –300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • sub-6 GHz or the like, if used herein, may broadly represent frequencies less than 6 GHz, frequencies within FR1, and/or mid-band frequencies (e.g., greater than 7.125 GHz) .
  • millimeter wave may broadly represent frequencies within the EHF band, frequencies within FR2, and/or mid-band frequencies (e.g., less than 24.25 GHz) . It is contemplated that the frequencies included in FR1 and FR2 may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with the present disclosure.
  • Base station 110 may be equipped with T antennas 234a through 234t
  • UE 120 may be equipped with R antennas 252a through 252r, where in general T ⁇ 1 and R ⁇ 1.
  • a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS (s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) ) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols.
  • MCS modulation and coding schemes
  • CQIs channel quality indicators
  • Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) ) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control
  • Transmit processor 220 may also generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS) ) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS) ) .
  • reference signals e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)
  • synchronization signals e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t.
  • MIMO multiple-input multiple-output
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • a respective output symbol stream e.g., for OFDM
  • Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
  • T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples.
  • Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and/or a CQI parameter, among other examples.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSSQ reference signal received quality
  • CQI parameter CQI parameter
  • Network controller 130 may include communication unit 294, controller/processor 290, and memory 292.
  • Network controller 130 may include, for example, one or more devices in a core network.
  • Network controller 130 may communicate with base station 110 via communication unit 294.
  • Antennas may include, or may be included within, one or more antenna panels, antenna groups, sets of antenna elements, and/or antenna arrays, among other examples.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include a set of coplanar antenna elements and/or a set of non-coplanar antenna elements.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include antenna elements within a single housing and/or antenna elements within multiple housings.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig. 2.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-OFDM) , and transmitted to base station 110.
  • control information e.g., for reports that include RSRP, RSSI, RSRQ, and/or CQI
  • Transmit processor 264 may also generate reference symbols for one or more reference signals.
  • the symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM or CP-O
  • a modulator and a demodulator (e.g., MOD/DEMOD 254) of UE 120 may be included in a modem of UE 120.
  • UE 120 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 252, modulators and/or demodulators 254, MIMO detector 256, receive processor 258, transmit processor 264, and/or TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., controller/processor 280) and memory 282 to perform aspects of any of the methods described herein (for example, as described with reference to Figs. 1-11) .
  • the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120.
  • Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240.
  • Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244.
  • Base station 110 may include a scheduler 246 to schedule UEs 120 for downlink and/or uplink communications.
  • a modulator and a demodulator (e.g., MOD/DEMOD 232) of the base station 110 may be included in a modem of the base station 110.
  • the base station 110 includes a transceiver.
  • the transceiver may include any combination of antenna (s) 234, modulators and/or demodulators 232, MIMO detector 236, receive processor 238, transmit processor 220, and/or TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., controller/processor 240) and memory 242 to perform aspects of any of the methods described herein (for example, as described with reference to Figs. 1-11) .
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with uplink signaling for concurrent uplink and sidelink with multiple TRPs, as described in more detail elsewhere herein.
  • UE 120 may be in or on a vehicle or other object that has multiple TRPs that are associated with the UE 120.
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 800 of Fig. 8, process 900 of Fig. 9, and/or other processes as described herein.
  • Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively.
  • memory 242 and/or memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of base station 110 and/or UE 120, may cause the one or more processors, UE 120, and/or the base station 110 to perform or direct operations of, for example, process 800 of Fig. 8, process 900 of Fig. 9, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.
  • While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
  • the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of controller/processor 280.
  • UE 120 includes means for generating information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of sounding reference signal (SRS) resource indicators (SRIs) for transmission of uplink communications from a second TRP of the UE to a base station; or a source identifier (ID) of another UE from which the UE receives sidelink communications at the first TRP, and/or means for transmitting the information to the base station.
  • SRS sounding reference signal
  • SRIs resource indicators
  • ID source identifier
  • the means for UE 120 to perform operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller/processor 280, or memory 282.
  • UE 120 includes means for receiving an uplink grant based at least in part on transmitting the information to the base station, and/or means for transmitting an uplink communication according to the uplink grant. In some aspects, UE 120 includes means for receiving a sidelink communication concurrently with transmitting the uplink communication.
  • UE 120 includes means for transmitting a transmit power control (TPC) command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE.
  • UE 120 includes means for transmitting a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE.
  • UE 120 includes means for transmitting, with the TPC command, an indication of a maximum MCS or an uplink scheduling parameter.
  • TPC transmit power control
  • base station 110 includes means for receiving, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications, and/or means for transmitting an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • the means for base station 110 to perform operations described herein may include, for example, one or more of transmit processor 220, TX MIMO processor 230, modulator 232, antenna 234, demodulator 232, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
  • base station 110 includes means for transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement. In some aspects, base station 110 includes means for refraining from transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • base station 110 includes means for receiving a TPC command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE, and/or means for transmitting a TPC command to the other UE to adjust a transmit power for sidelink transmissions. In some aspects, base station 110 includes means for receiving a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE, and/or means for transmitting a TPC command to the UE to adjust a transmit power for uplink transmissions.
  • base station 110 includes means for transmitting, based at least in part on the information, an uplink grant to the UE and a sidelink grant to the other UE if the interference measurement satisfies a threshold for full duplex of uplink and sidelink.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Fig. 3 is a diagram illustrating an example 300 of sidelink communications, in accordance with the present disclosure.
  • a first UE 305-1 may communicate with a second UE 305-2 (and one or more other UEs 305) via one or more sidelink channels 310.
  • UEs 305-1 and 305-2 may communicate using the one or more sidelink channels 310 for P2P communications, D2D communications, V2X communications (e.g., which may include V2V communications, V2I communications, V2P communications) , and/or mesh networking.
  • UEs 305 e.g., UE 305-1 and/or UE 305-2
  • one or more sidelink channels 310 may use a PC5 interface and/or may operate in a high frequency band (e.g., the 5.9 GHz band) . Additionally, or alternatively, the UEs 305 may synchronize timing of transmission time intervals (e.g., frames, subframes, slots, symbols, and/or the like) using global navigation satellite system timing.
  • transmission time intervals e.g., frames, subframes, slots, symbols, and/or the like
  • one or more sidelink channels 310 may include a physical sidelink control channel (PSCCH) 315, a physical sidelink shared channel (PSSCH) 320, and/or a physical sidelink feedback channel (PSFCH) 325.
  • PSCCH 315 may be used to communicate control information, similar to a physical downlink control channel (PDCCH) and/or a physical uplink control channel (PUCCH) used for cellular communications with a base station 110 via an access link or an access channel.
  • PSSCH 320 may be used to communicate data, similar to a physical downlink shared channel (PDSCH) and/or a physical uplink shared channel (PUSCH) used for cellular communications with base station 110 via an access link or an access channel.
  • PSCCH 315 may carry sidelink control information (SCI) 330, which may indicate various control information used for sidelink communications, such as one or more resources (e.g., time resources, frequency resources, spatial resources) where a transport block (TB) 335 may be carried on PSSCH 320.
  • TB 335 may include data.
  • PSFCH 325 may be used to communicate sidelink feedback 340, such as hybrid automatic repeat request (HARQ) feedback (e.g., acknowledgement or negative acknowledgement (ACK/NACK) information) , transmit power control, a scheduling request, and/or the like.
  • HARQ hybrid automatic repeat request
  • ACK/NACK acknowledgement or negative acknowledgement
  • one or more sidelink channels 310 may use resource pools.
  • a scheduling assignment (e.g., included in SCI 330) may be transmitted in sub-channels using specific resource blocks (RBs) across time.
  • data transmissions (e.g., on PSSCH 320) associated with a scheduling assignment may occupy adjacent RBs in the same subframe as the scheduling assignment (e.g., using frequency division multiplexing) .
  • a scheduling assignment and associated data transmissions are not transmitted on adjacent RBs.
  • a UE 305 may operate using a transmission mode where resource selection and/or scheduling is performed by UE 305 (e.g., rather than a base station 110) . In some aspects, UE 305 may perform resource selection and/or scheduling by sensing channel availability for transmissions.
  • UE 305 may measure an RSSI parameter (e.g., a sidelink-RSSI (S-RSSI) parameter) associated with various sidelink channels, may measure an RSRP parameter (e.g., a PSSCH-RSRP parameter) associated with various sidelink channels, may measure an RSRQ parameter (e.g., a PSSCH-RSRQ parameter) associated with various sidelink channels and may select a channel for transmission of a sidelink communication based at least in part on the measurement (s) .
  • RSSI parameter e.g., a sidelink-RSSI (S-RSSI) parameter
  • RSRP parameter e.g., a PSSCH-RSRP parameter
  • RSRQ parameter e.g., a PSSCH-RSRQ parameter
  • UE 305 may perform resource selection and/or scheduling using SCI 330 received in PSCCH 315, which may indicate occupied resources, and/or channel parameters. Additionally, or alternatively, UE 305 may perform resource selection and/or scheduling by determining a channel busy rate associated with various sidelink channels, which may be used for rate control (e.g., by indicating a maximum number of resource blocks that UE 305 can use for a particular set of subframes) .
  • a sidelink grant may indicate, for example, one or more parameters (e.g., transmission parameters) to be used for an upcoming sidelink transmission, such as one or more resource blocks to be used for the upcoming sidelink transmission on PSSCH 320 (e.g., for TBs 335) , one or more subframes to be used for the upcoming sidelink transmission, a modulation and coding scheme to be used for the upcoming sidelink transmission, and/or the like.
  • parameters e.g., transmission parameters
  • a UE 305 may generate a sidelink grant that indicates one or more parameters for semi-persistent scheduling, such as a periodicity of a sidelink transmission. Additionally, or alternatively, the UE 305 may generate a sidelink grant for event-driven scheduling, such as for an on-demand sidelink message.
  • Fig. 3 is provided as an example. Other examples may differ from what is described with respect to Fig. 3.
  • Fig. 4 is a diagram illustrating an example 400 of sidelink communications and access link communications, in accordance with the present disclosure.
  • a UE 405 and another UE 410 may communicate with one another via a sidelink, as described above in connection with Fig. 3.
  • a base station 110 may communicate with UE 405 via a first access link. Additionally, or alternatively, in some sidelink modes, base station 110 may communicate with UE 410 via a second access link.
  • UE 405 and/or UE 410 may correspond to one or more UEs described elsewhere herein, such as UE 120 of Fig. 1.
  • a direct link between UEs 120 may be referred to as a sidelink
  • a direct link between a base station 110 and a UE 120 may be referred to as an access link
  • Sidelink communications may be transmitted on a PC5 via the sidelink
  • access link communications may be transmitted via the access link.
  • An access link communication may be either a downlink communication (from a base station 110 to a UE 120) or an uplink communication (from a UE 120 to a base station 110) on a Uu interface.
  • Mode 1 sidelink communication Communication between 405 and 410, with base station 110 allocating resources for sidelink transmissions, may be referred to as Mode 1 sidelink communication.
  • UE 405 may be a relay UE for UE 410 (remote UE) .
  • base station 110 may schedule a sidelink resource upon receiving a sidelink buffer status report (SL-BSR) from UE 405.
  • Base station 110 may then transmit a sidelink grant via downlink control information (DCI) to UE 405.
  • DCI downlink control information
  • Fig. 4 is provided as an example. Other examples may differ from what is described with respect to Fig. 4.
  • Fig. 5 is a diagram illustrating an example 500 of a vehicle with multiple TRPs, in accordance with the present disclosure.
  • Coverage for V2X communications may be enhanced with multiple TRPs.
  • Multiple TRPs may improve reliability, coverage, and capacity performance through flexible deployment scenarios. More specifically, multiple TRPs equipped in different portions of a vehicle may improve reliability of safety applications or other robust applications.
  • a vehicle may have a TRP at a front end (TRP1) and a TRP at a rear end (TRP2) .
  • TRP1 front end
  • TRP2 TRP at a rear end
  • One TRP or multiple TRPs may form beams that point in different directions.
  • Transmission coverage for the multiple TRPs may vary depending upon the application used for the vehicle. For example, side coverage for a vehicle may not be as important as front or back coverage for collision avoidance applications. From a receiver point of view, multiple TRPs on a vehicle may be desirable for 360-degree coverage. For example, it may be better to use TRPs on both ends of a vehicle to receive packets from other UEs.
  • Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.
  • Fig. 6 is a diagram illustrating an example 600 of interference in sidelink and uplink communications, in accordance with the present disclosure.
  • Example shows a base station 610 that may communicate with a UE 620 in a vehicle.
  • UE 620 may transmit a communication on an uplink 625.
  • There may also be another UE 630 in another vehicle that transmits a communication on a sidelink 635.
  • the communication on uplink 625 may be at the same time as the communication on sidelink 635 as part of wireless full duplex communication.
  • Full duplex communication enables two devices to transmit and receive simultaneously on the same frequency and/or time radio resources.
  • a vehicle equipped with multi-TRPs may be capable of simultaneous transmission and reception in time division duplex (TDD) mode or full duplex mode using the same time-frequency radio resource with different TRPs.
  • TDD time division duplex
  • one TRP may transmit a communication (uplink) in a same time slot as a communication (sidelink) received at another TRP.
  • the vehicle may space the multiple TRPs apart, full duplex in a scenario with concurrent uplink communication on one TRP (via Uu) and sidelink communication on another TRP (via PC5) may involve interference.
  • UE 620 may experience self-interference 640 for communications received on sidelink 635 that is caused by communications transmitted on uplink 625.
  • self-interference 640 may be caused by sidelink communications that are transmitted from another TRP associated with UE 620.
  • UE 620 may also experience sidelink interference 645 on uplink 625 from sidelink communications received from UE 630. Such interference may degrade communications and cause the UE to waste processing and signaling resources on communications that are not successful or do not meet messaging requirements for the application (e.g., safety requirements) .
  • Fig. 6 is provided as an example. Other examples may differ from what is described with regard to Fig. 6.
  • Figs. 7A-7B are diagrams illustrating an example 700 of uplink signaling for concurrent uplink and sidelink with multiple TRPs, in accordance with the present disclosure.
  • Example 700 shows a BS 710 that may communicate with a UE 720 in a first vehicle.
  • UE 720 may communicate with a UE 730 in a second vehicle.
  • a UE may transmit uplink signaling, such as an uplink buffer status report (UL-BSR) , to a base station with information that is based at least in part on a measurement of sidelink-to-uplink interference and/or self-interference.
  • the base station may use this information to adjust characteristics (e.g., transmit power) of an uplink grant for a first TRP of the UE.
  • the base station may also use the information to adjust, or not transmit, a sidelink grant to another UE that is to transmit a sidelink communication to another TRP of the UE.
  • UE 720 may generate sidelink and/or uplink information. For example, UE 720 may measure sidelink-to-uplink interference caused by sidelink communications from UE 730 to a first TRP associated with UE 720. As shown by reference number 745, UE 720 may transmit the sidelink and/or uplink information to BS 710. For example, UE 720 may include the measurement of the sidelink-to-uplink interference or associated information in a UL-BSR. The UL-BSR may serve as a request for an uplink grant. UE 720 may include a TPC recommendation in the UL-BSR. The TPC recommendation may recommend an increase in the transmit power of an uplink communication.
  • BS 710 may transmit an uplink grant that accounts for the sidelink-to-uplink interference. This may include increasing a transmit power of an uplink communication to account for the sidelink-to-uplink interference. BS 710 may improve reception of the uplink communication.
  • the uplink grant may indicate a subset of SRIs for uplink transmit beams that UE 720 is to use.
  • UE 720 may also transmit a maximum MCS or other uplink scheduling parameters to BS 710 to help mitigate the interference.
  • BS 710 may determine if a single frequency or subband full duplex operation is even possible between sidelink communications from UE 730 and uplink communications from UE 720.
  • UE 720 may transmit information about self-interference that affects reception of sidelink communications from UE 730.
  • BS 710 may then transmit an uplink grant that decreases a transmit power (e.g., power backoff command, TPC recommendation for a lower transmit power) for an uplink communication from UE 720 to mitigate the self-interference. This may improve reception of sidelink communications.
  • a transmit power e.g., power backoff command, TPC recommendation for a lower transmit power
  • UE 720 may transmit a UL-BSR or a sidelink BSR (SL-BSR) that includes a source ID of UE 730, from which UE 720 is receiving sidelink communications.
  • BS 710 may use the source ID to measure sidelink-to-uplink interference near BS 710, to determine a signal to noise plus interference ratio (SNIR) of an uplink communication. If UE 730 is located in another cell, BS 710 may coordinate with other base stations to measure the sidelink-to uplink interference.
  • UE 720 may also provide the information in a medium access control control element (MAC-CE) or a radio resource control (RRC) message.
  • MAC-CE medium access control control element
  • RRC radio resource control
  • BS 710 may transmit a sidelink grant to UE 730.
  • the sidelink grant may indicate that UE 730 is to transmit a sidelink communication at a same time (e.g., slot) as an uplink communication from UE 720, but with less transmit power (e.g., TPC command to decrease the transmit power) , in order to mitigate sidelink-to-uplink interference.
  • the sidelink grant may indicate that UE 730 is to transmit the sidelink communication with more transmit power (e.g., TPC command to increase the transmit power) , in order to mitigate self-interference caused by an uplink communication or another sidelink communication scheduled for transmission from UE 720.
  • BS 710 may refrain from transmitting a sidelink grant to UE 730 for a same time as the uplink communication from UE 720.
  • sidelink transmit and receive beams may be identified and coordinated between UE 720 and UE 730, with the help of BS 710. Identifiers, such as a source ID of UE 730 and a destination ID of UE 720, may also be used.
  • UE 720 may include a sidelink transmission configuration indicator (TCI) state for a transmit beam of UE 730 that corresponds to a receive beam used for reception of sidelink communications from UE 730.
  • the receive beam may be quasi-co-located (QCLed) with the transmit beam.
  • BS 710 may then use this TCI state to configure a sidelink grant to UE 730 that is specifically for the sidelink TCI state.
  • TCI sidelink transmission configuration indicator
  • UE 720 may also include a destination ID for the sidelink communications received from UE 730.
  • BS 710 may configure UE 730 to transmit a sidelink communication or SRS using a TCI state that is QCLed with a spatial relation of a receive beam for sidelink communications that have the destination ID.
  • BS 710 may mitigate or eliminate sidelink-to-uplink interference caused by UE 730 and/or self-interference. Communications may improve for UE 720, UE 730, and BS 710. As a result, UE 720, UE 730, and BS 710 may conserve processing resources and signaling resources that would otherwise be consumed by retransmissions for degraded communications or other issues caused by lost communications.
  • FIGS. 7A-7B provide an example. Other examples may differ from what is described with regard to Figs. 7A-7B.
  • Fig. 8 is a diagram illustrating an example process 800 performed, for example, by a UE, in accordance with the present disclosure.
  • Example process 800 is an example where the UE (e.g., a UE 120 depicted in Figs. 1-2, UE 305 depicted in Fig. 3, UE 405 depicted in Fig. 4, UE 720 depicted in Fig. 7) performs operations associated with uplink signaling for concurrent uplink and sidelink with multiple TRPs.
  • the UE e.g., a UE 120 depicted in Figs. 1-2, UE 305 depicted in Fig. 3, UE 405 depicted in Fig. 4, UE 720 depicted in Fig. 7 performs operations associated with uplink signaling for concurrent uplink and sidelink with multiple TRPs.
  • process 800 may include generating information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of SRIs for transmission of uplink communications from a second TRP of the UE to a base station; or a source ID of another UE from which the UE receives sidelink communications at the first TRP (block 810) .
  • the UE e.g., using generation component 1008 depicted in Fig.
  • 10) may generate information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of SRIs for transmission of uplink communications from a second TRP of the UE to a base station; or a source ID of another UE from which the UE receives sidelink communications at the first TRP, as described above.
  • process 800 may include transmitting the information to the base station (block 820) .
  • the UE e.g., using transmission component 1004 depicted in Fig. 10 may transmit the information to the base station, as described above.
  • Process 800 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • process 800 includes receiving an uplink grant based at least in part on transmitting the information to the base station, and transmitting an uplink communication according to the uplink grant.
  • process 800 includes receiving a sidelink communication concurrently with transmitting the uplink communication.
  • transmitting the information includes transmitting the information in a BSR.
  • transmitting the information includes transmitting the information in a MAC-CE or an RRC message.
  • process 800 includes transmitting a TPC command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE.
  • process 800 includes transmitting a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE.
  • process 800 includes transmitting, with the TPC command, an indication of a maximum MCS or an uplink scheduling parameter.
  • the information indicates a transmission configuration indicator state used for transmission by the other UE.
  • process 800 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 8. Additionally, or alternatively, two or more of the blocks of process 800 may be performed in parallel.
  • Fig. 9 is a diagram illustrating an example process 900 performed, for example, by a base station, in accordance with the present disclosure.
  • Example process 900 is an example where the base station (e.g., base station 110 depicted in Figs. 1-2 and 4, BS 710 depicted in Fig. 7) performs operations associated with uplink signaling for concurrent uplink and sidelink with multiple TRPs.
  • the base station e.g., base station 110 depicted in Figs. 1-2 and 4, BS 710 depicted in Fig. 7
  • process 900 may include receiving, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications (block 910) .
  • the base station e.g., using reception component 1102 depicted in Fig.
  • the 11) may receive, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of sounding reference signal resource indicators for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications, as described above.
  • process 900 may include transmitting an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information (block 920) .
  • the base station e.g., using transmission component 1104 depicted in Fig. 11
  • Process 900 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the uplink grant is for a same slot as a sidelink grant for the other UE based at least in part on the information.
  • process 900 includes transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • process 900 includes refraining from transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • receiving the information includes receiving the information in a BSR.
  • receiving the information includes receiving the information in a MAC-CE or an RRC message.
  • process 900 includes receiving a TPC command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE, and transmitting a TPC command to the other UE to adjust a transmit power for sidelink transmissions.
  • the TPC command to adjust the transmit power for sidelink transmissions is based at least in part on the interference measurement.
  • process 900 includes receiving a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE, and transmitting a TPC command to the UE to adjust a transmit power for uplink transmissions.
  • the TPC command to adjust the transmit power for uplink transmissions is based at least in part on the interference measurement.
  • the information indicates a TCI state used for sidelink communications transmitted by the other UE
  • process 900 includes transmitting a sidelink grant or an uplink grant based at least in part on the TCI state.
  • the sidelink grant is transmitted using the source ID.
  • the information indicates a TCI state used for uplink communications transmitted by the UE
  • process 900 includes transmitting a sidelink grant or an uplink grant based at least in part on the TCI state.
  • the information indicates a destination ID associated with the UE
  • process 900 includes configuring the UE to transmit uplink communications using a spatial relation configuration that is QCLed with a beam that the other UE uses to transmit, with the destination ID, sidelink communications to the UE.
  • process 900 includes transmitting, based at least in part on the information, an uplink grant to the UE and a sidelink grant to the other UE if the interference measurement satisfies a threshold for full duplex of uplink and sidelink.
  • process 900 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 9. Additionally, or alternatively, two or more of the blocks of process 900 may be performed in parallel.
  • Fig. 10 is a block diagram of an example apparatus 1000 for wireless communication.
  • the apparatus 1000 may be a UE, or a UE may include the apparatus 1000.
  • the apparatus 1000 includes a reception component 1002 and a transmission component 1004, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 1000 may communicate with another apparatus 1006 (such as a UE, a base station, or another wireless communication device) using the reception component 1002 and the transmission component 1004.
  • the apparatus 1000 may include a generation component 1008, among other examples.
  • the apparatus 1000 may be configured to perform one or more operations described herein in connection with Figs. 1-6 and 7A-7B. Additionally, or alternatively, the apparatus 1000 may be configured to perform one or more processes described herein, such as process 800 of Fig. 8, or a combination thereof.
  • the apparatus 1000 and/or one or more components shown in Fig. 10 may include one or more components of the UE described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 10 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 1002 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1006.
  • the reception component 1002 may provide received communications to one or more other components of the apparatus 1000.
  • the reception component 1002 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1006.
  • the reception component 1002 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2.
  • the transmission component 1004 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1006.
  • one or more other components of the apparatus 1006 may generate communications and may provide the generated communications to the transmission component 1004 for transmission to the apparatus 1006.
  • the transmission component 1004 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1006.
  • the transmission component 1004 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described above in connection with Fig. 2. In some aspects, the transmission component 1004 may be co-located with the reception component 1002 in a transceiver.
  • the generation component 1008 may generate information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first TRP of the UE; a set of SRIs for transmission of uplink communications from a second TRP of the UE to a base station; or a source ID of another UE from which the UE receives sidelink communications at the first TRP.
  • the transmission component 1004 may transmit the information to the base station.
  • the reception component 1002 may receive an uplink grant based at least in part on transmitting the information to the base station.
  • the transmission component 1004 may transmit an uplink communication according to the uplink grant.
  • the reception component 1002 may receive a sidelink communication concurrently with transmitting the uplink communication.
  • the transmission component 1004 may transmit a TPC command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE.
  • the transmission component 1004 may transmit a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE.
  • the transmission component 1004 may transmit, with the TPC command, an indication of a maximum MCS or an uplink scheduling parameter.
  • Fig. 10 The number and arrangement of components shown in Fig. 10 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 10. Furthermore, two or more components shown in Fig. 10 may be implemented within a single component, or a single component shown in Fig. 10 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 10 may perform one or more functions described as being performed by another set of components shown in Fig. 10.
  • Fig. 11 is a block diagram of an example apparatus 1100 for wireless communication.
  • the apparatus 1100 may be a base station, or a base station may include the apparatus 1100.
  • the apparatus 1100 includes a reception component 1102 and a transmission component 1104, which may be in communication with one another (for example, via one or more buses and/or one or more other components) .
  • the apparatus 1100 may communicate with another apparatus 1106 (such as a UE, a base station, or another wireless communication device) using the reception component 1102 and the transmission component 1104.
  • the apparatus 1100 may include a scheduling component 1108, among other examples.
  • the apparatus 1100 may be configured to perform one or more operations described herein in connection with Figs. 1-6 and 7A-7B. Additionally, or alternatively, the apparatus 1100 may be configured to perform one or more processes described herein, such as process 900 of Fig. 9.
  • the apparatus 1100 and/or one or more components shown in Fig. 11 may include one or more components of the base station described above in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 11 may be implemented within one or more components described above in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 1102 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1106.
  • the reception component 1102 may provide received communications to one or more other components of the apparatus 1100.
  • the reception component 1102 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples) , and may provide the processed signals to the one or more other components of the apparatus 1106.
  • the reception component 1102 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2.
  • the transmission component 1104 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1106.
  • one or more other components of the apparatus 1106 may generate communications and may provide the generated communications to the transmission component 1104 for transmission to the apparatus 1106.
  • the transmission component 1104 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) , and may transmit the processed signals to the apparatus 1106.
  • the transmission component 1104 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the base station described above in connection with Fig. 2. In some aspects, the transmission component 1104 may be co-located with the reception component 1102 in a transceiver.
  • the reception component 1102 may receive, from a UE, information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of SRIs for transmission of uplink communications by the UE, or a source ID of another UE from which the UE receives sidelink communications.
  • the scheduling component 1108 may generate a sidelink grant and/or an uplink grant based at least in part on the information, interference measurements, and/or traffic conditions.
  • the transmission component 1104 may transmit an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • the transmission component 1104 may transmit a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • the transmission component 1104 may refrain from transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • the reception component 1102 may receive a TPC command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE.
  • the transmission component 1104 may transmit a TPC command to the other UE to adjust a transmit power for sidelink transmissions.
  • the reception component 1102 may receive a TPC command recommending that a transmit power of the UE be adjusted for uplink communications from the UE.
  • the transmission component 1104 may transmit a TPC command to the UE to adjust a transmit power for uplink transmissions.
  • the transmission component 1104 may transmit, based at least in part on the information, an uplink grant to the UE and a sidelink grant to the other UE if the interference measurement satisfies a threshold for full duplex of uplink and sidelink.
  • Fig. 11 The number and arrangement of components shown in Fig. 11 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 11. Furthermore, two or more components shown in Fig. 11 may be implemented within a single component, or a single component shown in Fig. 11 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 11 may perform one or more functions described as being performed by another set of components shown in Fig. 11.
  • a method of wireless communication performed by a user equipment (UE) comprising: generating information indicating one or more of: a set of sidelink slots allocated for reception of sidelink communications at a first transmit receive point (TRP) of the UE; a set of sounding reference signal resource indicators for transmission of uplink communications from a second TRP of the UE to a base station; or a source identifier of another UE from which the UE receives sidelink communications at the first TRP; and transmitting the information to the base station.
  • TRP transmit receive point
  • Aspect 2 The method of Aspect 1, further comprising: receiving an uplink grant based at least in part on transmitting the information to the base station; and transmitting an uplink communication according to the uplink grant.
  • Aspect 3 The method of Aspect 2, further comprising receiving a sidelink communication concurrently with transmitting the uplink communication.
  • Aspect 4 The method of any of Aspects 1-3, wherein transmitting the information includes transmitting the information in a buffer status report.
  • Aspect 5 The method of any of Aspects 1-3, wherein transmitting the information includes transmitting the information in a medium access control control element (MAC-CE) or a radio resource control message.
  • MAC-CE medium access control control element
  • Aspect 6 The method of any of Aspects 1-5, further comprising transmitting a transmit power control command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE.
  • Aspect 7 The method of any of Aspects 1-6, further comprising transmitting a transmit power control (TPC) command recommending that a transmit power of the UE be adjusted for uplink communications from the UE.
  • TPC transmit power control
  • Aspect 8 The method of Aspect 7, further comprising transmitting, with the TPC command, an indication of a maximum modulation and coding scheme or an uplink scheduling parameter.
  • Aspect 9 The method of any of Aspects 1-8, wherein the information indicates a transmission configuration indicator state used for transmission by the other UE.
  • a method of wireless communication performed by a base station comprising: receiving, from a user equipment (UE) , information indicating one or more of a set of sidelink slots allocated for reception of sidelink communications by the UE, a set of sounding reference signal resource indicators for transmission of uplink communications by the UE, or a source identifier (ID) of another UE from which the UE receives sidelink communications; and transmitting an uplink grant that is based at least in part on an interference measurement, at the base station, of an uplink communication, from the UE, that is associated with the information.
  • UE user equipment
  • Aspect 11 The method of Aspect 10, wherein the uplink grant is for a same slot as a sidelink grant for the other UE based at least in part on the information.
  • Aspect 12 The method of Aspect 10 or 11, further comprising transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • Aspect 13 The method of Aspect 10 or 11, further comprising refraining from transmitting a sidelink grant, to the UE or the other UE, based at least in part on the interference measurement.
  • Aspect 14 The method of any of Aspects 10-13, wherein receiving the information includes receiving the information in a buffer status report.
  • Aspect 15 The method of any of Aspects 10-13, wherein receiving the information includes receiving the information in a medium access control control element (MAC-CE) or a radio resource control message.
  • MAC-CE medium access control control element
  • Aspect 16 The method of any of Aspects 10-15, further comprising: receiving a transmit power control (TPC) command recommending that a transmit power of the other UE be adjusted for sidelink communications to the UE; and transmitting a TPC command to the other UE to adjust a transmit power for sidelink transmissions.
  • TPC transmit power control
  • Aspect 17 The method of Aspect 16, wherein the TPC command to adjust the transmit power for sidelink transmissions is based at least in part on the interference measurement.
  • Aspect 18 The method of any of Aspects 10-17, further comprising: receiving a transmit power control (TPC) command recommending that a transmit power of the UE be adjusted for uplink communications from the UE; and transmitting a TPC command to the UE to adjust a transmit power for uplink transmissions.
  • TPC transmit power control
  • Aspect 19 The method of Aspect 18, wherein the TPC command to adjust the transmit power for uplink transmissions is based at least in part on the interference measurement.
  • Aspect 20 The method of any of Aspects 10-19, wherein the information indicates a transmission configuration indicator (TCI) state used for sidelink communications transmitted by the other UE, and wherein the method further comprises transmitting a sidelink grant or an uplink grant based at least in part on the TCI state.
  • TCI transmission configuration indicator
  • Aspect 21 The method of Aspect 20, wherein the sidelink grant is transmitted using the source ID.
  • Aspect 22 The method of any of Aspects 10-21, wherein the information indicates a transmission configuration indicator (TCI) state used for uplink communications transmitted by the UE, and wherein the method further comprises transmitting a sidelink grant or an uplink grant based at least in part on the TCI state.
  • TCI transmission configuration indicator
  • Aspect 23 The method of any of Aspects 10-22, wherein the information indicates a destination ID associated with the UE, and wherein the method further comprises configuring the UE to transmit uplink communications using a spatial relation configuration that is quasi-co-located with a beam that the other UE uses to transmit, with the destination ID, sidelink communications to the UE.
  • Aspect 24 The method of any of Aspects 10-23, further comprising transmitting, based at least in part on the information, an uplink grant to the UE and a sidelink grant to the other UE if the interference measurement satisfies a threshold for full duplex of uplink and sidelink.
  • Aspect 25 An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more Aspects of Aspects 1-24.
  • a device for wireless communication comprising a memory and one or more processors coupled to the memory, the memory and the one or more processors configured to perform the method of one or more Aspects of Aspects 1-24.
  • Aspect 27 An apparatus for wireless communication, comprising at least one means for performing the method of one or more Aspects of Aspects 1-24.
  • Aspect 28 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more Aspects of Aspects 1-24.
  • Aspect 29 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more Aspects of Aspects 1-24.
  • the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software.
  • “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a processor is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • the phrase “only one” or similar language is used.
  • the terms “has, ” “have, ” “having, ” or the like are intended to be open-ended terms.
  • the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.
  • the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or, ” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of” ) .

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation portent d'une manière générale sur la communication sans fil. Selon certains aspects, un équipement utilisateur (UE) peut générer des informations indiquant un ou plusieurs des éléments suivants : un ensemble d'intervalles de liaison latérale attribués pour la réception de communications de liaison latérale à un premier point de réception d'émission (TRP) de l'UE ; un ensemble d'indicateurs de ressources de signal de référence de sondage pour la transmission de communications de liaison montante d'un second TRP de l'UE à une station de base ; ou un identifiant source d'un autre UE à partir duquel l'UE reçoit des communications de liaison latérale au niveau du premier TRP. L'UE peut transmettre les informations à la station de base. De nombreux autres aspects sont décrits.
PCT/CN2021/078410 2021-03-01 2021-03-01 Signalisation de liaison montante pour liaison montante et liaison latérale simultanées avec de multiples points de réception d'émission WO2022183311A1 (fr)

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