WO2022032422A1 - Attribution de ressource partagée - Google Patents

Attribution de ressource partagée Download PDF

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Publication number
WO2022032422A1
WO2022032422A1 PCT/CN2020/108072 CN2020108072W WO2022032422A1 WO 2022032422 A1 WO2022032422 A1 WO 2022032422A1 CN 2020108072 W CN2020108072 W CN 2020108072W WO 2022032422 A1 WO2022032422 A1 WO 2022032422A1
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WO
WIPO (PCT)
Prior art keywords
sensing signal
resources
indication
sensing
signal pattern
Prior art date
Application number
PCT/CN2020/108072
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English (en)
Inventor
Min Huang
Jing Dai
Qiaoyu Li
Chao Wei
Yu Zhang
Hao Xu
Yin Huang
Hui Guo
Original Assignee
Qualcomm Incorporated
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Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to PCT/CN2020/108072 priority Critical patent/WO2022032422A1/fr
Publication of WO2022032422A1 publication Critical patent/WO2022032422A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal

Definitions

  • the following relates to wireless communications, including shared resource allocation of, for example, wireless sensing resources.
  • Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power) .
  • Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems.
  • 4G systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems
  • 5G systems which may be referred to as New Radio (NR) systems.
  • a wireless multiple-access communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE) .
  • UE user equipment
  • one or more UEs may perform wireless sensing procedures.
  • a user equipment may monitor a periodic set of resources on a sidelink channel, where the periodic set of resources are allocated for use by the UE and other UEs to indicate resources used by the UEs for wireless sensing.
  • the UE may determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the UE to indicate sensing resources to be used by the UE.
  • the UE may use the available resources to transmit an indication of a first sensing signal pattern.
  • the first sensing signal pattern is to be used by the UE in a set of shared sensing signal resources.
  • the indication allows other UEs to ascertain that the first sensing signal pattern and the resources on which the pattern is to be used are reserved. Once reserved, the UE may transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the base station may identify and allocate, to the UE, the periodic set of resources on the sidelink channel, the set of shared sensing signal resources on the sidelink channel, or both.
  • FIG. 1 illustrates an example of a system for wireless communications that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 2 illustrates an example of a wireless communications system that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 3 illustrates an example of a timeline that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 4 illustrates an example of a timeline that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 5 illustrates an example of a timeline that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 6 illustrates an example of a process flow that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIGs. 7 and 8 show block diagrams of devices that support shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 9 shows a block diagram of a communications manager that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 10 shows a diagram of a system including a device that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIGs. 11 and 12 show block diagrams of devices that support shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 13 shows a block diagram of a communications manager that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIG. 14 shows a diagram of a system including a device that supports shared resource allocation in accordance with aspects of the present disclosure.
  • FIGs. 15 through 18 show flowcharts illustrating methods that support shared resource allocation in accordance with aspects of the present disclosure.
  • one or more user equipments may perform wireless sensing.
  • Wireless sensing procedures may include active wireless sensing and passive wireless sensing.
  • Passive wireless sensing may include monitoring for and receiving signals transmitted by other devices.
  • Active wireless sensing may include monitoring for self-transmitted sensing signals to detect objects.
  • a device utilizing active sensing procedures may transmit sensing signals on dedicated resources or shared resources.
  • a base station may allocate one or more dedicated resources (e.g., time, frequency, or spatial resources) for use by UEs to transmit sensing signals in a geographic coverage area.
  • dedicated sensing signal resources may allow UEs to avoid interference from other UEs transmitting sensing signals.
  • use of dedicated sensing signal resources may depend on a UE having an established connection with the base station. Even if the UE has an established connection with the base station, use of dedicated sensing signal resources may result in increased power expenditures and system latency, as well as increased hardware or software complexity.
  • a device utilizing active sensing procedures may transmit sensing signals on shared sensing signal resources.
  • the location of the shared sensing signal resources may be standardized, or may be indicated by a base station. Allocation of shared sensing signal resources may result in less signaling or coordination by the base station than allocation of dedicated sensing signals. Additionally, use of shared sensing signal resources may result in increased system efficiency and decreased system latency. However, additional complexities may arise in a shared sensing signal resource configuration, in that different devices may utilize different sensing signal parameters (e.g., waveform, bandwidth, active time, cycle, etc. ) , which may not be known to other UEs.
  • sensing signal parameters e.g., waveform, bandwidth, active time, cycle, etc.
  • a UE may monitor shared sensing resources and attempt to discern the sensing signal pattern and sensing signal parameters used by the other UEs.
  • monitoring and detecting may be power-wise expensive, and may not result in an accurate determination of the sensing signal parameters.
  • a UE may select, from the shared sensing signal resources, one or more sensing signal resources that overlap with, are adjacent too, or are located close to sensing signal resources used by another UE, which may result in interference, failure to detect sensing signals by one or both UEs, or the like. Failure to detect one or more sensing signals may result in retransmissions, increased system congestion, and failed sensing procedures, safety issues, etc.
  • one or more periodic resources may be allocated for indications, between UEs, of sensing signal patterns in shared sensing signal resources (e.g., an occupation indication message) .
  • the periodic resources may include multiple portions (e.g., units) . Each portion of the periodic resources may be used or available for use by different UEs to indicate respective sensing pattern parameters. The portions may be different frequency ranges or subchannels and may be available in a first-come, first-served basis.
  • a UE may monitor the periodic resources to determine sensing signal patterns of other UEs.
  • the UE may receive, in various portions of the periodic resources, one or more occupation indication messages from other UEs, and may determine sensing signal patterns (e.g., including the sensing signal pattern parameters) for each of the other UEs. Having identified the sensing signal patterns for other UEs, the UE may determine its own sensing signal pattern (e.g., may select a subset of shared sensing signal resources) that does not overlap with or will decrease interference from the sensing signal patterns of the other UEs.
  • sensing signal patterns e.g., including the sensing signal pattern parameters
  • the UE may identify a spare or empty unit (e.g., subset of resources) of the periodic resources on which to transmit its own indication of its determined sensing signal pattern. During any time period in which the UE is transmitting its sensing signals, the UE may also transmit, on the available or spare unit of the periodic resources, its own indication of its sensing signal pattern for decoding by other UEs.
  • the UE may transmit the indication via sidelink control information (SCI) , a physical sidelink control channel (PSCCH) , a medium access control (MAC) control element (CE) in a physical sidelink shared channel (PSSCH) , or the like.
  • SCI sidelink control information
  • PSCCH physical sidelink control channel
  • CE medium access control element
  • the UE may select a transmit power for the indication based on measured signal quality or decoded indications from other UEs. In some examples, the UE may select a beam for transmitting the indication based on a receive beam on which it will monitor for sensing signals.
  • aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are further illustrated by and described with reference to timelines and process flows. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, system diagrams, and flowcharts that relate to shared resource allocation.
  • FIG. 1 illustrates an example of a wireless communications system 100 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the wireless communications system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130.
  • the wireless communications system 100 may be a Long Term Evolution (LTE) network, an LTE-Advanced (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-A Pro LTE-A Pro
  • NR New Radio
  • the wireless communications system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.
  • ultra-reliable e.g., mission critical
  • the base stations 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may be devices in different forms or having different capabilities.
  • the base stations 105 and the UEs 115 may wirelessly communicate via one or more communication links 125.
  • Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base station 105 may establish one or more communication links 125.
  • the coverage area 110 may be an example of a geographic area over which a base station 105 and a UE 115 may support the communication of signals according to one or more radio access technologies.
  • the UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times.
  • the UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in FIG. 1.
  • the UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115, the base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment) , as shown in FIG. 1.
  • network equipment e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment
  • the base stations 105 may communicate with the core network 130, or with one another, or both.
  • the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface) .
  • the base stations 105 may communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105) , or indirectly (e.g., via core network 130) , or both.
  • the backhaul links 120 may be or include one or more wireless links.
  • One or more of the base stations 105 described herein may include or may be referred to by a person having ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB) , a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB) , a Home NodeB, a Home eNodeB, or other suitable terminology.
  • a base transceiver station a radio base station
  • an access point a radio transceiver
  • a NodeB an eNodeB (eNB)
  • eNB eNodeB
  • a next-generation NodeB or a giga-NodeB either of which may be referred to as a gNB
  • gNB giga-NodeB
  • a UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples.
  • a UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA) , a tablet computer, a laptop computer, or a personal computer.
  • PDA personal digital assistant
  • a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.
  • WLL wireless local loop
  • IoT Internet of Things
  • IoE Internet of Everything
  • MTC machine type communications
  • the UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as relays as well as the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
  • devices such as other UEs 115 that may sometimes act as relays as well as the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in FIG. 1.
  • the UEs 115 and the base stations 105 may wirelessly communicate with one another via one or more communication links 125 over one or more carriers.
  • the term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication links 125.
  • a carrier used for a communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth part (BWP) ) that is operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR) .
  • BWP bandwidth part
  • Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information) , control signaling that coordinates operation for the carrier, user data, or other signaling.
  • the wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation.
  • a UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration.
  • Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.
  • FDD frequency division duplexing
  • TDD time division duplexing
  • a carrier may also have acquisition signaling or control signaling that coordinates operations for other carriers.
  • a carrier may be associated with a frequency channel (e.g., an evolved universal mobile telecommunication system terrestrial radio access (E-UTRA) absolute radio frequency channel number (EARFCN) ) and may be positioned according to a channel raster for discovery by the UEs 115.
  • E-UTRA evolved universal mobile telecommunication system terrestrial radio access
  • a carrier may be operated in a standalone mode where initial acquisition and connection may be conducted by the UEs 115 via the carrier, or the carrier may be operated in a non-standalone mode where a connection is anchored using a different carrier (e.g., of the same or a different radio access technology) .
  • the communication links 125 shown in the wireless communications system 100 may include uplink transmissions from a UE 115 to a base station 105, or downlink transmissions from a base station 105 to a UE 115.
  • Carriers may carry downlink or uplink communications (e.g., in an FDD mode) or may be configured to carry downlink and uplink communications (e.g., in a TDD mode) .
  • a carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples the carrier bandwidth may be referred to as a “system bandwidth” of the carrier or the wireless communications system 100.
  • the carrier bandwidth may be one of a number of determined bandwidths for carriers of a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz) ) .
  • Devices of the wireless communications system 100 e.g., the base stations 105, the UEs 115, or both
  • the wireless communications system 100 may include base stations 105 or UEs 115 that support simultaneous communications via carriers associated with multiple carrier bandwidths.
  • each served UE 115 may be configured for operating over portions (e.g., a sub-band, a BWP) or all of a carrier bandwidth.
  • Signal waveforms transmitted over a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM) ) .
  • MCM multi-carrier modulation
  • OFDM orthogonal frequency division multiplexing
  • DFT-S-OFDM discrete Fourier transform spread OFDM
  • a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related.
  • the number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both) .
  • a wireless communications resource may refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams) , and the use of multiple spatial layers may further increase the data rate or data integrity for communications with a UE 115.
  • One or more numerologies for a carrier may be supported, where a numerology may include a subcarrier spacing ( ⁇ f) and a cyclic prefix.
  • a carrier may be divided into one or more BWPs having the same or different numerologies.
  • a UE 115 may be configured with multiple BWPs.
  • a single BWP for a carrier may be active at a given time and communications for the UE 115 may be restricted to one or more active BWPs.
  • Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms) ) .
  • Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023) .
  • SFN system frame number
  • Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration.
  • a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of slots.
  • each frame may include a variable number of slots, and the number of slots may depend on subcarrier spacing.
  • Each slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period) .
  • a slot may further be divided into multiple mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., N f ) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
  • a subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI) .
  • TTI duration e.g., the number of symbol periods in a TTI
  • the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs) ) .
  • Physical channels may be multiplexed on a carrier according to various techniques.
  • a physical control channel and a physical data channel may be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques.
  • a control region e.g., a control resource set (CORESET)
  • CORESET control resource set
  • a control region for a physical control channel may be defined by a number of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier.
  • One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115.
  • one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner.
  • An aggregation level for a control channel candidate may refer to a number of control channel resources (e.g., control channel elements (CCEs) ) associated with encoded information for a control information format having a given payload size.
  • Search space sets may include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.
  • Each base station 105 may provide communication coverage via one or more cells, for example a macro cell, a small cell, a hot spot, or other types of cells, or any combination thereof.
  • the term “cell” may refer to a logical communication entity used for communication with a base station 105 (e.g., over a carrier) and may be associated with an identifier for distinguishing neighboring cells (e.g., a physical cell identifier (PCID) , a virtual cell identifier (VCID) , or others) .
  • a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) over which the logical communication entity operates.
  • Such cells may range from smaller areas (e.g., a structure, a subset of structure) to larger areas depending on various factors such as the capabilities of the base station 105.
  • a cell may be or include a building, a subset of a building, or exterior spaces between or overlapping with geographic coverage areas 110, among other examples.
  • a macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider supporting the macro cell.
  • a small cell may be associated with a lower-powered base station 105, as compared with a macro cell, and a small cell may operate in the same or different (e.g., licensed, unlicensed) frequency bands as macro cells.
  • Small cells may provide unrestricted access to the UEs 115 with service subscriptions with the network provider or may provide restricted access to the UEs 115 having an association with the small cell (e.g., the UEs 115 in a closed subscriber group (CSG) , the UEs 115 associated with users in a home or office) .
  • a base station 105 may support one or multiple cells and may also support communications over the one or more cells using one or multiple component carriers.
  • a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB) ) that may provide access for different types of devices.
  • protocol types e.g., MTC, narrowband IoT (NB-IoT) , enhanced mobile broadband (eMBB)
  • NB-IoT narrowband IoT
  • eMBB enhanced mobile broadband
  • a base station 105 may be movable and therefore provide communication coverage for a moving geographic coverage area 110.
  • different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105.
  • the overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105.
  • the wireless communications system 100 may include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.
  • the wireless communications system 100 may support synchronous or asynchronous operation.
  • the base stations 105 may have similar frame timings, and transmissions from different base stations 105 may be approximately aligned in time.
  • the base stations 105 may have different frame timings, and transmissions from different base stations 105 may, in some examples, not be aligned in time.
  • the techniques described herein may be used for either synchronous or asynchronous operations.
  • Some UEs 115 may be low cost or low complexity devices and may provide for automated communication between machines (e.g., via Machine-to-Machine (M2M) communication) .
  • M2M communication or MTC may refer to data communication technologies that allow devices to communicate with one another or a base station 105 without human intervention.
  • M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application program that makes use of the information or presents the information to humans interacting with the application program.
  • Some UEs 115 may be designed to collect information or enable automated behavior of machines or other devices. Examples of applications for MTC devices include smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access control, and transaction-based business charging.
  • Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception simultaneously) .
  • half-duplex communications may be performed at a reduced peak rate.
  • Other power conservation techniques for the UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating over a limited bandwidth (e.g., according to narrowband communications) , or a combination of these techniques.
  • some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
  • a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs) ) within a carrier, within a guard-band of a carrier, or outside of a carrier.
  • the wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof.
  • the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications.
  • the UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission critical functions) .
  • Ultra-reliable communications may include private communication or group communication and may be supported by one or more mission critical services such as mission critical push-to-talk (MCPTT) , mission critical video (MCVideo) , or mission critical data (MCData) .
  • MCPTT mission critical push-to-talk
  • MCVideo mission critical video
  • MCData mission critical data
  • Support for mission critical functions may include prioritization of services, and mission critical services may be used for public safety or general commercial applications.
  • the terms ultra-reliable, low-latency, mission critical, and ultra-reliable low-latency may be used interchangeably herein.
  • a UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol) .
  • D2D device-to-device
  • P2P peer-to-peer
  • One or more UEs 115 utilizing D2D communications may be within the geographic coverage area 110 of a base station 105.
  • Other UEs 115 in such a group may be outside the geographic coverage area 110 of a base station 105 or be otherwise unable to receive transmissions from a base station 105.
  • groups of the UEs 115 communicating via D2D communications may utilize a one-to-many (1: M) system in which each UE 115 transmits to every other UE 115 in the group.
  • a base station 105 facilitates the scheduling of resources for D2D communications. In other cases, D2D communications are carried out between the UEs 115 without the involvement of a base station 105.
  • the D2D communication link 135 may be an example of a communication channel, such as a sidelink communication channel, between vehicles (e.g., UEs 115) .
  • vehicles may communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these.
  • V2X vehicle-to-everything
  • V2V vehicle-to-vehicle
  • a vehicle may signal information related to traffic conditions, signal scheduling, weather, safety, emergencies, or any other information relevant to a V2X system.
  • vehicles in a V2X system may communicate with roadside infrastructure, such as roadside units, or with the network via one or more network nodes (e.g., base stations 105) using vehicle-to-network (V2N) communications, or with both.
  • V2N vehicle-to-network
  • the core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions.
  • the core network 130 may be an evolved packet core (EPC) or 5G core (5GC) , which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME) , an access and mobility management function (AMF) ) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW) , a Packet Data Network (PDN) gateway (P-GW) , or a user plane function (UPF) ) .
  • EPC evolved packet core
  • 5GC 5G core
  • MME mobility management entity
  • AMF access and mobility management function
  • S-GW serving gateway
  • PDN Packet Data Network gateway
  • UPF user plane function
  • the control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130.
  • NAS non-access stratum
  • User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions.
  • the user plane entity may be connected to the network operators IP services 150.
  • the network operators IP services 150 may include access to the Internet, Intranet (s) , an IP Multimedia Subsystem (IMS) , or a Packet-Switched Streaming Service.
  • Some of the network devices may include subcomponents such as an access network entity 140, which may be an example of an access node controller (ANC) .
  • Each access network entity 140 may communicate with the UEs 115 through one or more other access network transmission entities 145, which may be referred to as radio heads, smart radio heads, or transmission/reception points (TRPs) .
  • Each access network transmission entity 145 may include one or more antenna panels.
  • various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., a base station 105) .
  • the wireless communications system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz) .
  • the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length.
  • UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors.
  • the transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
  • HF high frequency
  • VHF very high frequency
  • the wireless communications system 100 may also operate in a super high frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as the centimeter band, or in an extremely high frequency (EHF) region of the spectrum (e.g., from 30 GHz to 300 GHz) , also known as the millimeter band.
  • SHF super high frequency
  • EHF extremely high frequency
  • the wireless communications system 100 may support millimeter wave (mmW) communications between the UEs 115 and the base stations 105, and EHF antennas of the respective devices may be smaller and more closely spaced than UHF antennas. In some examples, this may facilitate use of antenna arrays within a device.
  • mmW millimeter wave
  • the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions.
  • the techniques disclosed herein may be employed across transmissions that use one or more different frequency regions, and designated use of bands across these frequency regions may differ by country or regulating body.
  • the wireless communications system 100 may utilize both licensed and unlicensed radio frequency spectrum bands.
  • the wireless communications system 100 may employ License Assisted Access (LAA) , LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band.
  • LAA License Assisted Access
  • LTE-U LTE-Unlicensed
  • NR NR technology
  • an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band.
  • devices such as the base stations 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance.
  • operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA) .
  • Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
  • a base station 105 or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming.
  • the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming.
  • one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower.
  • antennas or antenna arrays associated with a base station 105 may be located in diverse geographic locations.
  • a base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with a UE 115.
  • a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.
  • an antenna panel may support radio frequency beamforming for a signal transmitted via an antenna port.
  • the base stations 105 or the UEs 115 may use MIMO communications to exploit multipath signal propagation and increase the spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such techniques may be referred to as spatial multiplexing.
  • the multiple signals may, for example, be transmitted by the transmitting device via different antennas or different combinations of antennas. Likewise, the multiple signals may be received by the receiving device via different antennas or different combinations of antennas.
  • Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords) .
  • Different spatial layers may be associated with different antenna ports used for channel measurement and reporting.
  • MIMO techniques include single-user MIMO (SU-MIMO) , where multiple spatial layers are transmitted to the same receiving device, and multiple-user MIMO (MU-MIMO) , where multiple spatial layers are transmitted to multiple devices.
  • SU-MIMO single-user MIMO
  • Beamforming which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device.
  • Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating at particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference.
  • the adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device.
  • the adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation) .
  • a base station 105 or a UE 115 may use beam sweeping techniques as part of beam forming operations.
  • a base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115.
  • Some signals e.g., synchronization signals, reference signals, beam selection signals, or other control signals
  • the base station 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission.
  • Transmissions in different beam directions may be used to identify (e.g., by a transmitting device, such as a base station 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the base station 105.
  • a transmitting device such as a base station 105
  • a receiving device such as a UE 115
  • Some signals may be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115) .
  • the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted in one or more beam directions.
  • a UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
  • transmissions by a device may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from a base station 105 to a UE 115) .
  • the UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across a system bandwidth or one or more sub-bands.
  • the base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS) ) , which may be precoded or unprecoded.
  • a reference signal e.g., a cell-specific reference signal (CRS) , a channel state information reference signal (CSI-RS)
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • the UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook) .
  • PMI precoding matrix indicator
  • codebook-based feedback e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook
  • a UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., for transmitting data to a receiving device) .
  • a receiving device may try multiple receive configurations (e.g., directional listening) when receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals.
  • receive configurations e.g., directional listening
  • a receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions.
  • receive beamforming weight sets e.g., different directional listening weight sets
  • a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal) .
  • the single receive configuration may be aligned in a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR) , or otherwise acceptable signal quality based on listening according to multiple beam directions) .
  • SNR signal-to-noise ratio
  • the wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack.
  • communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based.
  • a Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels.
  • RLC Radio Link Control
  • a Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels.
  • the MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency.
  • the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or a core network 130 supporting radio bearers for user plane data.
  • RRC Radio Resource Control
  • transport channels may be mapped to physical channels.
  • the UEs 115 and the base stations 105 may support retransmissions of data to increase the likelihood that data is received successfully.
  • Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly over a communication link 125.
  • HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC) ) , forward error correction (FEC) , and retransmission (e.g., automatic repeat request (ARQ) ) .
  • FEC forward error correction
  • ARQ automatic repeat request
  • HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions) .
  • a device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In other cases, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
  • a UE 115 may monitor a periodic set of resources on a sidelink channel allocated for transmission of indications of sensing resources used by a plurality of UEs 115 for wireless sensing.
  • the UE 115 may determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the UE 115 to indicate sensing resources to be used by the UE 115 for wireless sensing.
  • the UE 115 may transmit an indication of a first sensing signal pattern to be used by the UE 115 in a set of shared sensing signal resources.
  • the UE 115 may transmit the indication of the first sensing signal pattern in the available at least one of the periodic set of resources.
  • the UE 115 may also transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • FIG. 2 illustrates an example of a wireless communications system 200 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • wireless communications system 200 may implement aspects of wireless communication system 100.
  • Wireless communications system 200 may include a base station 205, and one or more UEs 215, which may be examples of corresponding devices as described with reference to FIG. 1.
  • Base station 205 may be in communication with UE 215-a via communication link 220-a, UE 215-b via communication link 220-b, UE 215-c via communication link 220-c, and UE 215-d via communication link 220-d.
  • UEs 215 may perform sensing procedures to identify objects 235.
  • Objects 235 may be obstacles (e.g., traffic impediments, debris, roadblocks, etc. ) , other devices, people, pedestrians, reflective surfaces, structures, vehicles, or the like.
  • a UE 215 performing object sensing may transmit a signal 225, and monitor for a signal 230.
  • UE 215-a may transmit signal 225-a and receive signal 230-a
  • UE 215-b may transmit signal 225-b and receive signal 230-b
  • UE 215-c may transmit signal 225-c and receive signal 230-c
  • UE 215-d may transmit signal 225-d and receive signal 230-d.
  • Sensing procedures may be valuable in some wireless communications systems (e.g., 5G systems) .
  • UE 215-b may be a vehicle-to-everything (V2X) device.
  • V2X vehicle-to-everything
  • UE 215-b may perform sensing procedures to identify an environment on or around a road or traffic route, and take real-time action to avoid traffic accidents, traffic congestion, obstacles, pedestrians, or the like.
  • UE 215-b may sense object 235-b, and provide this information to the network (e.g., via base station 205) .
  • Network infrastructure may sense the traffic situation (e.g., based on the sensing by various UEs 215) and may send instructions or warnings to other related vehicles or pedestrians (e.g., via other UEs 215) .
  • Radio sensing procedures may be effective even when other sensing technologies become weak or invalid. For instance, visual sensing or video sensing may experience degraded performance when lighting conditions change (e.g., when UE 215-b enters a tunnel, or at night, or in poor weather, fog, or other low visibility scenarios) .
  • lighting conditions change e.g., when UE 215-b enters a tunnel, or at night, or in poor weather, fog, or other low visibility scenarios
  • LiDAR light detection and ranging
  • Radio wireless sensing may therefore be reliable, even in such conditions, because of its insensitivity to light and relatively low price.
  • UEs 215 may perform passive sensing procedures. Passive sensing may include monitoring for sensing signals that are not self-transmitted. In passive sensing, sensing signals may be transmitted by a target object or another object. For instance, UE 215-a may perform passive sensing, and may monitor for a signal 230-a transmitted by object 235-a (e.g., a device carried by another person or part of an automated structure, or the like) . UE 215-a may not transmit a signal 225-a, or may transmit a signal 225-a that triggers the transmission of signal 230-a. However, signal 230-a may not be a self-transmitted signal (e.g., a reflection of signal 225-a) in a passive sensing scenario.
  • object 235-a e.g., a device carried by another person or part of an automated structure, or the like
  • UEs 215 may perform active sensing procedures. Active sensing may include transmitting sensing signals 225 and monitoring for the self-transmitted signal 230. That is, a UE 215 may transmit a sensing signal 225 and monitor for a reflection of the sensing signal (e.g., sensing signal 230) . For instance, UE 215-b may transmit a sensing signal 225-b. Sensing signal 225-b may reflect off of object 235-b, or may otherwise be receivable by UE 215-b.
  • Active sensing may include transmitting sensing signals 225 and monitoring for the self-transmitted signal 230. That is, a UE 215 may transmit a sensing signal 225 and monitor for a reflection of the sensing signal (e.g., sensing signal 230) . For instance, UE 215-b may transmit a sensing signal 225-b. Sensing signal 225-b may reflect off of object 235-b, or may otherwise be receivable by UE 2
  • UE 215-b may monitor for and receive one or more self-transmitted sensing signals 230-b (e.g., signal 230-b may be a reflection of transmitted sensing signal 225-b, or may be received feedback resulting from signal 225-b, or the like) .
  • signal 230-b may be a reflection of transmitted sensing signal 225-b, or may be received feedback resulting from signal 225-b, or the like.
  • a UE 215 may derive one or more radio resources on which to transmit sensing signals 225.
  • the sensing signals 225 may be frequency modulated continuous wave (FMCW) signals, Golay sequences, reference signals (e.g., sounding reference signals (SRSs) ) , or the like.
  • UEs 215 may transmit sensing signals 225 over various frequency ranges, include frequency range 1 (FR1) (e.g., over frequencies from about 5 GHz to about 7 GHz) , or frequency range 2 (FR2) (e.g., over frequencies around 60 GHz) , or the like.
  • Sensing signal resources may coexist with communication, data, or control resources in time, frequency or both (e.g., in a time division multiplexing (TDM) mode, a frequency division multiplexing (FDM) mode, or both) .
  • TDM time division multiplexing
  • FDM frequency division multiplexing
  • UEs 215 may transmit sensing signals using dedicated sensing signal resources.
  • a UE 215 may transmit a request for sensing signal resources to base station 205, and base station 205 may allocate one or more sensing signal resources to the requesting UE 215. This may be highly efficient with respect to sensing signal resource allocation, and may decrease interference from other sensing signals transmitted by other UEs 215.
  • dedicated sensor signal resources may be effective when a connection with the network (e.g., via base station 205) has been established.
  • UE 215-b does not have a current connection with base station 205, or leaves a geographic coverage area 210, or loses a previous connection with base station 205, then resources may not be effectively allocated, resulting in poor or failed sensing procedures. Additionally, successfully requesting and receiving dedicated sensing signal resources from base station 205 may result in increased power expenditures, increased system latency, and increased hardware or software complexity for a UE 215.
  • UEs 215 may transmit sensing signals using shared sensing signal resources.
  • shared sensing signal resources may be connection free (e.g., may not rely on signaling between the base station 205 and the UEs 215) , and may therefore be utilized outside of coverage areas 210 or when coverage by base station 205 is poor.
  • shared sensing signal resources may also reduce power expenditures at UEs 215.
  • various sensing applications may utilize different sensing signal patterns, which may result in increased interference or other complications, as described in greater detail with reference to FIG. 3.
  • a UE may transmit occupation indication messages on periodic resources to avoid such interference and complications, as described in greater detail with reference to FIGs. 4-6.
  • FIG. 3 illustrates an example of a timeline 300 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • timeline 300 may implement aspects of wireless communication system 100.
  • one or more UEs 315 may communicate during timeline 300, and may be examples of corresponding devices described with reference to FIGs. 1 and 2.
  • UEs 315 may transmit sensing signal over one or more shared sensing signal resources 305.
  • Shared sensing signal resources 305 may be located on a sidelink channel.
  • Multiple UEs 315 e.g., UE 315-a, UE 315-b. and UE 315-c
  • UEs 315 may determine the location of shared sensing signal resources 305 based on preconfigured or standardized information, or may receive signaling from a base station indicating shared sensing signal resources 305.
  • Different UEs 315 may transmit sensing signals over sensing signal resources 305 according to different sensing signal patterns.
  • Each sensing signal pattern may be defined by one or more parameters (e.g., waveforms, bandwidth, active time, cycle, periodicity, timing, start times and stop times, or the like) .
  • UE 315-a may transmit sensing signals 320-a according to a first sensing signal pattern
  • UE 315-b may transmit sensing signals 320-b according to a second sensing signal pattern
  • UE 315-c may transmit sensing signals 320-c according to a third sensing signal pattern.
  • a base station may not be able to assign shared sensing signal resources 305 to various UEs 315 in uniform resource units (e.g., slot, mini-slot, symbol, etc. ) .
  • UE 315-a may not be aware of a sensing signal pattern (e.g., a length, period, frequency range, etc. ) used by UE 315-b based on resource allocation. Instead, UE 315-a may only determine a sensing signal pattern for UE 315-b by detecting the sensing signals 320-b.
  • sensing signals 320-a and sensing signals 320-b may interfere with one another.
  • a UE 315 may monitor and utilize a shared periodic resource or set of resources for indications of shared sensing signal resource occupancy, as described in greater detail with reference to FIG. 4. Such monitoring may result in efficiently identifying sensing signal patterns used by other UEs 315, and avoiding costly power expenditures and interference.
  • FIG. 4 illustrates an example of a timeline 400 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • timeline 400 may implement aspects of wireless communication system 100.
  • various UEs 415 may communicate with each other during timeline 400, and may be examples of corresponding devices described with reference to FIGs. 1-3.
  • UEs 415 may transmit sensing signals 420 according to varying sensing signal patterns over shared sensing signal resources 405 (e.g., on a sidelink channel) .
  • UE 415-a may transmit sensing signals 420-a according to a first sensing signal pattern
  • UE 415-b may transmit sensing signals 420-b according to a second sensing signal pattern
  • UE 415-c may transmit sensing signals 420-c according to a third sensing signal pattern.
  • the UEs 415 may not be aware of the sensing signal patterns used by other UEs 415.
  • a UE 415 selects the wrong shared sensing signal resources 405 for transmitting sensing signals 420 (e.g., resources that are overlapping or adjacent too or too close to other sensing signal patterns) , then the UE 415 may experience increased interference and decreased sensing signal efficiency.
  • sensing signals 420 e.g., resources that are overlapping or adjacent too or too close to other sensing signal patterns
  • Each UE 415 may monitor a set of one or more periodic resources 410 (e.g., a radio resource reserved for occupation indication messages) .
  • the periodic resources 410 may be regulated by one or more standards, preconfigured, indicated by a base station, or any combination thereof.
  • the periodic resources 410 may include one or more units or portions (e.g., portions 425 and 430) .
  • the portions or units may include at least one resource (e.g., time-frequency resources) of the set of periodic resources 410) .
  • the portions of period resources 410 may be available on a first-come first-serve basis. That is, any UE 415 may be able to utilize an available or empty portion of periodic resources 410 to transmit an indication of its own sensing signal pattern.
  • UEs 415 may monitor the period resources 410 and decode occupation indication messages from other UEs 415. Each UE may thus select shared sensing signal resources 405 for transmitting sensing signals 420 to avoid interference based on the occupation indication messages received on the periodic resources 410. While transmitting sensing signals 420, a UE 415 may select a spare or available portion of the periodic resources 410, and periodically broadcast its own occupation indication message (e.g., indicating its sensing signal pattern, parameters of the sensing signal pattern, etc. ) .
  • its own occupation indication message e.g., indicating its sensing signal pattern, parameters of the sensing signal pattern, etc.
  • UE 415-a may determine that portion 425 of the periodic resources 410 is available at T1.
  • UE 415-a may transmit sensing signals 420-a according to the first sensing signal pattern.
  • UE 415-a may transmit, in portion 425, a first occupation indication message.
  • UE 415-a may transmit the occupation indication message in a sidelink message (e.g., a sidelink control information message on a sidelink shared control channel, a media access control (MAC) control element (CE) in a physical sidelink shared channel, etc. ) .
  • a sidelink message e.g., a sidelink control information message on a sidelink shared control channel, a media access control (MAC) control element (CE) in a physical sidelink shared channel, etc.
  • the first occupation indication message may include an indication of the first sensing signal pattern, and may include one or more parameters of the first sensing signal pattern (e.g., cycle, bandwidth, duration, etc. ) .
  • the first shared occupation indication message may indicate that the first sensing signal pattern will last until T3.
  • UE 415-a may refrain from transmitting the first occupation indication message.
  • UE 415-c may determine that portion 430 of the periodic resource 410 is available. UE 415-c may transmit sensing signals 420-c according to the third sensing signal pattern. For the duration of transmission of sensing signals 420-c (e.g., from T1 to T6) , UE 415-c may transmit, in portion 430, an occupation indication message (e.g., an indication of the third sensing signal pattern) .
  • an occupation indication message e.g., an indication of the third sensing signal pattern
  • UE 415-b may monitor periodic resources 410, and may decode the first occupation indication message and the third occupation indication message. Thus, without monitoring shared sensing signal resources 405, UE 415-b may determine the first sensing signal pattern for sensing signals 420-a and the third sensing signal pattern for sensing signals 420-c. UE 415-b may thus select a subset of resources of shared sensing signal resources 405 (e.g., time resource, frequency resources, spatial resources, or a combination thereof) , for transmitting sensing signals 420-b. That is, UE 415-b may determine shared sensing signal resources 405 on which to transmit sensing signals 420-b that will not interfere with or be interfered with by sensing signals 420-a or sensing signals 420-c.
  • shared sensing signal resources 405 e.g., time resource, frequency resources, spatial resources, or a combination thereof
  • UE 415-b may determine (e.g., based on the first occupation indication message receiveted at T1, T2, or T3, or based on monitoring periodic resources 410 at T4, or both) that portion 425 of periodic resources 410 will be available at T4. While transmitting sensing signals 420-b (e.g., during each instance of the periodic resources 410 at T4, T5, and T6) , UE 415-b may transmit the second occupation indication message, indicating the second sensing signal pattern for sensing signals 420-b (e.g., including one or more parameters for the second sensing signal pattern) .
  • a UE 415 may perform power control for occupation indication messages (e.g., based on the occupation indication messages detected and decoded in periodic resources 410) , as described in greater detail with reference to FIG. 5.
  • FIG. 5 illustrates an example of a timeline 500 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • timeline 500 may implement aspects of wireless communication system 100.
  • various UEs 415 may communicate with each other during timeline 500, and may be examples of corresponding devices described with reference to FIGs. 1-4.
  • UEs 515 may transmit sensing signals on shared sensing signal resources 505. For instance, UE 515-a may transmit sensing signals 520-a according to a first sensing signal pattern, and UE 515-b may transmit sensing signals 520-b according to a second sensing signal pattern. UE 515-a may also transmit a first occupation indication message in portion 525 of periodic resources 510 (e.g., at T3 and T4 during transmission of sensing signals 520-a) . UE 515-b may also transmit a second occupation indication message in portion 530 of periodic resources 510 (e.g., at T1 through T6 during transmission of sensing signals 520-b) .
  • first occupation indication message in portion 525 of periodic resources 510 (e.g., at T3 and T4 during transmission of sensing signals 520-a)
  • UE 515-b may also transmit a second occupation indication message in portion 530 of periodic resources 510 (e.g., at T1 through T6 during transmission of sensing signals 520
  • a UE 515 transmits an occupation indication message at a high transmit power, then it is more likely that an increased number of other UEs 515 will be able to receive and decode the occupation indication message. Thus, an increased number of UEs 515 may be able to select shared sensing signal resources for transmitting sensing signals 520 without causing interference. However, an excessively high transmit power may result in some UEs refraining from using indicated shared sensing signal resources that would not have generated interference to the transmitting UE 515 (e.g., UEs 515 located a far enough distance away from the transmitting UE 515 that they would not cause any interference to the transmitting UE 515) .
  • a UE 515 selects a transmit power for sending an occupation indication message that is too high, resource may not be efficiently utilized. But, if the UE 515 selects a transmit power for sending an occupation indication message that is too low, it may experience an increase in interference when transmitting sensing signals 520.
  • UEs 515 may select transmit powers for transmitting occupation indication messages based on a determined level of interference, sensing sensitivity, or any combination thereof. For instance, if a UE 515 identifies a high level of interference regarding sensing sensitivity, then the UE 515 may increase the transmit power for transmitting the occupation indication message. If the UE 515 identifies a low level of interference regarding sensing sensitivity, then the UE 515 may decrease the transmit power for transmitting the occupation indication message. In some examples, a UE 515 may adjust a transmit power for transmitting sensing signals 520. However, adjusting the transmit power of the occupation indication message, instead of adjusting the transmit power of sensing signals 520, may result in less power consumption while avoiding interference from other UEs 515.
  • UE 515-b may transmit the second occupation indication message during portion 530 of each instance of periodic resources 510 (e.g., at T1, T2, T3, T4, T5, and T6) . Because UE 515-b does not detect any interference from other UEs 515 at T1 and T2, UE 515-b may select a relatively low initial transmit power. However, at T3, UE 515-a may begin transmitting sensing signals 520-a according to the first sensing signal pattern. During T3 and T4, UE 515-b may transmit the first occupation indication message in portion 525 of the periodic resources 510.
  • UE 515-b may determine an increase in interference during a time duration encompassing T3 and T4. Thus, UE 515-b may increase a transmit power for the second occupation indication message from the initial transmit power to a higher transmit power. During T3 and T4, UE 515-b may transmit the second occupation indication message at a higher transmit power.
  • UE 515-b Upon determining a decrease in interference at T5 (e.g., after UE 515-a finishes transmitting sensing signals 520-a) , UE 515-b my decrease its transmit power, and may transmit its occupation indication messages during T5 and T6 at the decreased transmit power.
  • UE 515-b may determine changes in interference based on one or more measurements. For instance, UE 515-b may perform one or more channel quality measurements, interference measurements, signal strength measurements, or the like, on the periodic resources 510, or the shared sensing signal resources 505, or both. UE 515-b may detect such interference and may adjust its transmit power for transmitting occupation indication messages accordingly.
  • UE 515-b may determine changes in interference based on monitoring periodic resources 510. For instance, UE 515-b may determine that energy in one or more instance of periodic resources 510 satisfy a threshold value, or may identify a number of utilized portions (or empty portions) in each instance of the periodic resource 510. Thus, based on the presence of other occupation indication messages from other UEs 515, UE 515-b may determine a potential or current interference level, and may adjust its transmit power for its own occupation indication messages accordingly. In some examples, UE 515-b may decode one or more occupation indication messages from other UEs 515 (e.g., UE 515-a) , and may determine an interference level caused by other sensing signal patterns based thereon.
  • UE 515-b may decode one or more occupation indication messages from other UEs 515 (e.g., UE 515-a) , and may determine an interference level caused by other sensing signal patterns based thereon.
  • UE 515-a may decode an occupation indication message in portion 525 of periodic resources 510 at T3.
  • the occupation indication message may indicate the parameters of the sensing signals 520-a.
  • UE 515-b may estimate or calculate a level of interference that sensing signals 520-a are causing or will cause for sensing signals 520-b.
  • UE 515-b may then increase the transmit power for transmitting its own occupation indication message during T3 and T4 in portion 530 based on the calculated or estimated level of interference.
  • UE 515-b may determine that the interference will decrease by T5 (after UE 515-a is done transmitting sensing signals 520-a) , and may decrease its transmit power for its occupation indication messages accordingly.
  • FIG. 6 illustrates an example of a process flow 600 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • process flow 600 may implement aspects of wireless communication system 100.
  • Process flow 600 may include a base station 605, a UE 615-a and a UE 615-b, which may be examples of corresponding devices described with reference to FIGs. 1-5.
  • UE 615-a may monitor a set of periodic resources.
  • the periodic resources may be a periodic time-frequency radio resource.
  • the set of periodic resources may be adjacent to or offset from a set of shared sensing signal resources.
  • UE 615-a may identify the periodic resources based on preconfigured information, one or more standards, or based on a configuration message. For instance, base station 605 may transmit a configuration of the shared sensing signal resources at 610, may transmit configuration of the periodic set of resources at 620, or both.
  • the configuration information may be received by UE 615-a, UE 615-b, and any other UEs 615 served by base station 605.
  • UE 615-b may broadcast an indication of a first sensing signal pattern (e.g., an occupation indication message) , and at 635, UE 615-b may transmit one or more sensing signals according to the indicated first sensing signal pattern.
  • UE 615-b may transmit the indication of the first sensing signal pattern in at least one resource of the periodic set of resources.
  • UE 615-b may transmit the indication of the first sensing signal pattern during each instance of the periodic set of resources while UE 615-b is transmitting the sensing signals.
  • UE 615-a may receive and decode the indication of the first sensing signal pattern at 630.
  • UE 615-a may determine the first sensing signal pattern for UE 615-b based on the indication of the first sensing signal patter received at 630.
  • UE 615-a may select a second sensing signal pattern (for transmitting sensing signals at 650) based on the indication of the first sensing signal pattern received at 630. That is, UE 615-a may select shared sensing signal resources on which to transmit sensing signals at 655 such that the sensing signals transmitted at 655 do not overlap with or interfere with the sensing signals transmitted by UE 615-b at 635.
  • UE 615-a may determine that at least one of the periodic set of resources (e.g., a portion of the periodic set of resources) is available for use by UE 615-a to indicate the second sensing signal pattern. For instance, the indication of the first sensing signal pattern received at 630 may occupy a first portion of the periodic set of resources, but a second portion of the periodic set of resources may be empty. UE 615-a may select the empty potion of the periodic set of resources for transmission of the indication of the second sensing signal pattern at 650.
  • the periodic set of resources e.g., a portion of the periodic set of resources
  • UE 615-a may transmit an indication of the second sensing signal pattern.
  • the second sensing signal pattern may be determined at 640.
  • the indication of the second sensing signal pattern may include an indication of one or more parameters of the second sensing signal pattern.
  • the indication of the second sensing signal pattern may include a sensing signal cycle, a sensing signal bandwidth, a sensing signal time duration, a sensing signal periodicity, or a combination thereof.
  • the indication of the second sensing signal may be a SCI message, a PSCCH message, a MAC CE in a PSSCH, or any combination thereof.
  • UE 615-a may determine an interference level from UE 615-b, and may set a transmit power for the indication of the second sensing signal pattern based thereon. UE 615-a may perform one or more signal quality measurements on the shared sensing signal resources, or the periodic set of resources, or both, to determine the interference level. In some examples, UE 615-a may determine the interference level by decoding the indication of the first sensing signal pattern at 630. For instance, UE 615-a may compare the first sensing signal pattern to the determined second sensing signal pattern, and may determine, estimate, predict, or calculate an interference level based on the comparing.
  • UE 615-a may determine a beam on which to transmit the indication of the second sensing signal pattern.
  • UE 615-a may use multiple transmit antennas and multiple receive antennas, and may be capable of performing beamforming procedures.
  • UE 615-a may identify a beam on which it will monitor for and receive sensing signals at 655. For instance, UE 615-a may monitor for self-transmitted sensing signals on the shared sensing signal resources (e.g., according to the second sensing signal pattern) .
  • UE 615-a may monitor for the sensing signals in a particular direction on a receive beam. The receive beam may be selected by UE 615-a or indicated by base station 605, or both.
  • UE 615-a may generate or identify a transmit beam that is identical to the selected receive beam, or that is pointed in the same or a similar direction as the selected receive beam.
  • UE 615-a may transmit the indication of the second sensing signal pattern on the identified transmit beam.
  • the other UEs 615 e.g., UE 615-b
  • the other UEs 615 that receive the indication of the second sensing signal pattern are the UEs 615 that would potentially interfere with the sensing signals transmitted at 655.
  • Other UEs 615 that are located in other directions may more efficiently utilize resources because they may not receive the indication of the sensing signal pattern.
  • UE 615-a may transmit one or more sensing signals according to the sensing signal pattern indicated at 645.
  • UE 615-a may transmit the indication of the second sensing signal pattern during each instance of the periodic set of resources for the duration of the second sensing signal pattern.
  • FIG. 7 shows a block diagram 700 of a device 705 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 705 may be an example of aspects of a UE 115 as described herein.
  • the device 705 may include a receiver 710, a communications manager 715, and a transmitter 720.
  • the device 705 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to shared resource allocation, etc. ) . Information may be passed on to other components of the device 705.
  • the receiver 710 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the receiver 710 may utilize a single antenna or a set of antennas.
  • the communications manager 715 may monitor a periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing, determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE, transmit, in the at least one of the periodic set of resources, an indication of a first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources, and transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the communications manager 715 may be an example of aspects of the communications manager 1010 described herein.
  • the communications manager 715 may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communications manager 715, or its sub-components may be executed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • code e.g., software or firmware
  • ASIC application-specific integrated circuit
  • the communications manager 715 may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical components.
  • the communications manager 715, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the communications manager 715, or its sub-components may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
  • I/O input/output
  • the transmitter 720 may transmit signals generated by other components of the device 705.
  • the transmitter 720 may be collocated with a receiver 710 in a transceiver module.
  • the transmitter 720 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the transmitter 720 may utilize a single antenna or a set of antennas.
  • FIG. 8 shows a block diagram 800 of a device 805 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 805 may be an example of aspects of a device 705, or a UE 115 as described herein.
  • the device 805 may include a receiver 810, a communications manager 815, and a transmitter 835.
  • the device 805 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 810 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to shared resource allocation, etc. ) . Information may be passed on to other components of the device 805.
  • the receiver 810 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the receiver 810 may utilize a single antenna or a set of antennas.
  • the communications manager 815 may be an example of aspects of the communications manager 715 as described herein.
  • the communications manager 815 may include a monitoring manager 820, a sensing signal pattern indication manager 825, and a sensing signal manager 830.
  • the communications manager 815 may be an example of aspects of the communications manager 1010 described herein.
  • the monitoring manager 820 may monitor a periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing and determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE.
  • the sensing signal pattern indication manager 825 may transmit, in the at least one of the periodic set of resources, an indication of a first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources.
  • the sensing signal manager 830 may transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the transmitter 835 may transmit signals generated by other components of the device 805.
  • the transmitter 835 may be collocated with a receiver 810 in a transceiver module.
  • the transmitter 835 may be an example of aspects of the transceiver 1020 described with reference to FIG. 10.
  • the transmitter 835 may utilize a single antenna or a set of antennas.
  • FIG. 9 shows a block diagram 900 of a communications manager 905 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the communications manager 905 may be an example of aspects of a communications manager 715, a communications manager 815, or a communications manager 1010 described herein.
  • the communications manager 905 may include a monitoring manager 910, a sensing signal pattern indication manager 915, a sensing signal manager 920, a periodic resource manager 925, an interference manager 930, a transmission power manager 935, and a beam manager 940. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the monitoring manager 910 may monitor a periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing. In some examples, the monitoring manager 910 may determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE. In some examples, the monitoring manager 910 may receive, based on the monitoring and in at least an occupied one of the periodic set of resources, an additional indication of a second sensing signal pattern used by a second UE in the set of shared sensing signal resources.
  • the sensing signal pattern indication manager 915 may transmit, in the at least one of the periodic set of resources, an indication of a first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources. In some examples, the sensing signal pattern indication manager 915 may transmit the indication of the first sensing signal pattern during each instance of the periodic set of resources during a time period associated with the first sensing signal pattern.
  • the sensing signal pattern indication manager 915 may transmit a signal indicative of a sensing signal cycle, a sensing signal bandwidth, a sensing signal time duration, a sensing signal periodicity, or a combination thereof. In some examples, the sensing signal pattern indication manager 915 may transmit the indication via a sidelink control information message, a physical sidelink control channel, a MAC control element (CE) , a physical sidelink shared channel, or a combination thereof. In some examples, the sensing signal pattern indication manager 915 may receive, based on the monitoring and in an occupied one of the periodic set of resources, an additional indication of a second sensing signal pattern used by a second UE in the set of shared sensing signal resources.
  • CE MAC control element
  • the sensing signal manager 920 may transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources. In some examples, the sensing signal manager 920 may determine the first sensing signal pattern based on the second sensing signal pattern. In some examples, the sensing signal manager 920 may receive the one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the periodic resource manager 925 may receive, from a base station, a downlink message allocating the periodic set of resources on the sidelink channel.
  • the interference manager 930 may determine an interference level on at least a portion of the set of shared sensing signal resources. In some examples, the interference manager 930 may perform one or more signal quality measurements on the set of shared sensing signal resources, where determining the interference level is based on the one or more signal quality measurements. In some examples, the interference manager 930 may compare the second sensing signal pattern and the first sensing signal pattern, where determining the interference level is based on the comparing.
  • the transmission power manager 935 may set a transmission power for transmission of the indication of the first sensing signal pattern based on the interference level, where transmitting the indication of the first sensing signal pattern is based on the transmission power.
  • the beam manager 940 may identify a receive beam associated with the one or more sensing signals. In some examples, the beam manager 940 may transmit the indication of the first sensing signal pattern on a transmit beam corresponding to the receive beam.
  • FIG. 10 shows a diagram of a system 1000 including a device 1005 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 1005 may be an example of or include the components of device 705, device 805, or a UE 115 as described herein.
  • the device 1005 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a communications manager 1010, an I/O controller 1015, a transceiver 1020, an antenna 1025, memory 1030, and a processor 1040. These components may be in electronic communication via one or more buses (e.g., bus 1045) .
  • buses e.g., bus 1045
  • the communications manager 1010 may monitor a periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing, determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE, transmit, in the at least one of the periodic set of resources, an indication of a first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources, and transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the I/O controller 1015 may manage input and output signals for the device 1005.
  • the I/O controller 1015 may also manage peripherals not integrated into the device 1005.
  • the I/O controller 1015 may represent a physical connection or port to an external peripheral.
  • the I/O controller 1015 may utilize an operating system such as or another known operating system.
  • the I/O controller 1015 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device.
  • the I/O controller 1015 may be implemented as part of a processor.
  • a user may interact with the device 1005 via the I/O controller 1015 or via hardware components controlled by the I/O controller 1015.
  • the transceiver 1020 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 1020 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 1020 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the wireless device may include a single antenna 1025. However, in some cases the device may have more than one antenna 1025, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 1030 may include RAM and ROM.
  • the memory 1030 may store computer-readable, computer-executable code 1035 including instructions that, when executed, cause the processor to perform various functions described herein.
  • the memory 1030 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • the processor 1040 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1040 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into the processor 1040.
  • the processor 1040 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1030) to cause the device 1005 to perform various functions (e.g., functions or tasks supporting shared resource allocation) .
  • the code 1035 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 1035 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code 1035 may not be directly executable by the processor 1040 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • FIG. 11 shows a block diagram 1100 of a device 1105 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 1105 may be an example of aspects of a base station 105 as described herein.
  • the device 1105 may include a receiver 1110, a communications manager 1115, and a transmitter 1120.
  • the device 1105 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to shared resource allocation, etc. ) . Information may be passed on to other components of the device 1105.
  • the receiver 1110 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the receiver 1110 may utilize a single antenna or a set of antennas.
  • the communications manager 1115 may identify a periodic set of resources for sidelink channel allocation to a set of UEs for indication of sensing resources used by the set of UEs for wireless sensing and transmit, to the set of UEs, an indication of the periodic set of resources.
  • the communications manager 1115 may be an example of aspects of the communications manager 1410 described herein.
  • the communications manager 1115, or its sub-components, may be implemented in hardware, code (e.g., software or firmware) executed by a processor, or any combination thereof.
  • the functions of the communications manager 1115, or its sub-components may be executed by a general-purpose processor, a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • a general-purpose processor e.g., a DSP, an application-specific integrated circuit (ASIC) , a FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described in the present disclosure.
  • ASIC application-specific integrated circuit
  • the communications manager 1115 may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations by one or more physical components.
  • the communications manager 1115, or its sub-components may be a separate and distinct component in accordance with various aspects of the present disclosure.
  • the communications manager 1115, or its sub-components may be combined with one or more other hardware components, including but not limited to an input/output (I/O) component, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof in accordance with various aspects of the present disclosure.
  • I/O input/output
  • the transmitter 1120 may transmit signals generated by other components of the device 1105.
  • the transmitter 1120 may be collocated with a receiver 1110 in a transceiver module.
  • the transmitter 1120 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the transmitter 1120 may utilize a single antenna or a set of antennas.
  • FIG. 12 shows a block diagram 1200 of a device 1205 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 1205 may be an example of aspects of a device 1105, or a base station 105 as described herein.
  • the device 1205 may include a receiver 1210, a communications manager 1215, and a transmitter 1230.
  • the device 1205 may also include a processor. Each of these components may be in communication with one another (e.g., via one or more buses) .
  • the receiver 1210 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to shared resource allocation, etc. ) . Information may be passed on to other components of the device 1205.
  • the receiver 1210 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the receiver 1210 may utilize a single antenna or a set of antennas.
  • the communications manager 1215 may be an example of aspects of the communications manager 1115 as described herein.
  • the communications manager 1215 may include a periodic resource manager 1220 and an indication manager 1225.
  • the communications manager 1215 may be an example of aspects of the communications manager 1410 described herein.
  • the periodic resource manager 1220 may identify a periodic set of resources for sidelink channel allocation to a set of UEs for indication of sensing resources used by the set of UEs for wireless sensing.
  • the indication manager 1225 may transmit, to the set of UEs, an indication of the periodic set of resources.
  • the transmitter 1230 may transmit signals generated by other components of the device 1205.
  • the transmitter 1230 may be collocated with a receiver 1210 in a transceiver module.
  • the transmitter 1230 may be an example of aspects of the transceiver 1420 described with reference to FIG. 14.
  • the transmitter 1230 may utilize a single antenna or a set of antennas.
  • FIG. 13 shows a block diagram 1300 of a communications manager 1305 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the communications manager 1305 may be an example of aspects of a communications manager 1115, a communications manager 1215, or a communications manager 1410 described herein.
  • the communications manager 1305 may include a periodic resource manager 1310, an indication manager 1315, and a sensing signal resource manager 1320. Each of these modules may communicate, directly or indirectly, with one another (e.g., via one or more buses) .
  • the periodic resource manager 1310 may identify a periodic set of resources for sidelink channel allocation to a set of UEs for indication of sensing resources used by the set of UEs for wireless sensing.
  • the indication manager 1315 may transmit, to the set of UEs, an indication of the periodic set of resources. In some examples, the indication manager 1315 may transmit, to the set of UEs, an indication of the set of shared sensing signal resources.
  • the sensing signal resource manager 1320 may identify a set of shared sensing signal resources for sidelink channel allocation to the set of UEs.
  • FIG. 14 shows a diagram of a system 1400 including a device 1405 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the device 1405 may be an example of or include the components of device 1105, device 1205, or a base station 105 as described herein.
  • the device 1405 may include components for bi-directional voice and data communications including components for transmitting and receiving communications, including a communications manager 1410, a network communications manager 1415, a transceiver 1420, an antenna 1425, memory 1430, a processor 1440, and an inter-station communications manager 1445. These components may be in electronic communication via one or more buses (e.g., bus 1450) .
  • buses e.g., bus 1450
  • the communications manager 1410 may identify a periodic set of resources for sidelink channel allocation to a set of UEs for indication of sensing resources used by the set of UEs for wireless sensing and transmit, to the set of UEs, an indication of the periodic set of resources.
  • the network communications manager 1415 may manage communications with the core network (e.g., via one or more wired backhaul links) .
  • the network communications manager 1415 may manage the transfer of data communications for client devices, such as one or more UEs 115.
  • the transceiver 1420 may communicate bi-directionally, via one or more antennas, wired, or wireless links as described above.
  • the transceiver 1420 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver.
  • the transceiver 1420 may also include a modem to modulate the packets and provide the modulated packets to the antennas for transmission, and to demodulate packets received from the antennas.
  • the wireless device may include a single antenna 1425. However, in some cases the device may have more than one antenna 1425, which may be capable of concurrently transmitting or receiving multiple wireless transmissions.
  • the memory 1430 may include RAM, ROM, or a combination thereof.
  • the memory 1430 may store computer-readable code 1435 including instructions that, when executed by a processor (e.g., the processor 1440) cause the device to perform various functions described herein.
  • a processor e.g., the processor 1440
  • the memory 1430 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
  • the processor 1440 may include an intelligent hardware device, (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof) .
  • the processor 1440 may be configured to operate a memory array using a memory controller.
  • a memory controller may be integrated into processor 1440.
  • the processor 1440 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1430) to cause the device 1405 to perform various functions (e.g., functions or tasks supporting shared resource allocation) .
  • the inter-station communications manager 1445 may manage communications with other base station 105, and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communications manager 1445 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communications manager 1445 may provide an X2 interface within an LTE/LTE-A wireless communication network technology to provide communication between base stations 105.
  • the code 1435 may include instructions to implement aspects of the present disclosure, including instructions to support wireless communications.
  • the code 1435 may be stored in a non-transitory computer-readable medium such as system memory or other type of memory. In some cases, the code 1435 may not be directly executable by the processor 1440 but may cause a computer (e.g., when compiled and executed) to perform functions described herein.
  • FIG. 15 shows a flowchart illustrating a method 1500 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the operations of method 1500 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1500 may be performed by a communications manager as described with reference to FIGs. 7 through 10.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may monitor a periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing.
  • the operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed by a monitoring manager as described with reference to FIGs. 7 through 10.
  • the UE may determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE.
  • the operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed by a monitoring manager as described with reference to FIGs. 7 through 10.
  • the UE may transmit, in the at least one of the periodic set of resources, an indication of a first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources.
  • the operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed by a sensing signal pattern indication manager as described with reference to FIGs. 7 through 10.
  • the UE may transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed by a sensing signal manager as described with reference to FIGs. 7 through 10.
  • FIG. 16 shows a flowchart illustrating a method 1600 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the operations of method 1600 may be implemented by a UE 115 or its components as described herein.
  • the operations of method 1600 may be performed by a communications manager as described with reference to FIGs. 7 through 10.
  • a UE may execute a set of instructions to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, a UE may perform aspects of the functions described below using special-purpose hardware.
  • the UE may receive, from a base station, a downlink message allocating a periodic set of resources on the sidelink channel.
  • the operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed by a periodic resource manager as described with reference to FIGs. 7 through 10.
  • the UE may monitor the periodic set of resources on a sidelink channel, the periodic set of resources allocated for indication of sensing resources used by a set of UEs for wireless sensing.
  • the operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed by a monitoring manager as described with reference to FIGs. 7 through 10.
  • the UE may receive, based on the monitoring and in at least an occupied one of the periodic set of resources, an additional indication of a second sensing signal pattern used by a second UE in the set of shared sensing signal resources.
  • the operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed by a monitoring manager as described with reference to FIGs. 7 through 10.
  • the UE may determine a first sensing signal pattern based on the second sensing signal pattern.
  • the operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be performed by a sensing signal manager as described with reference to FIGs. 7 through 10.
  • the UE may determine, based on the monitoring, that at least one of the periodic set of resources is available for use by the first UE to indicate sensing resources to be used by the first UE.
  • the operations of 1625 may be performed according to the methods described herein. In some examples, aspects of the operations of 1625 may be performed by a monitoring manager as described with reference to FIGs. 7 through 10.
  • the UE may transmit, in the at least one of the periodic set of resources, an indication of the first sensing signal pattern to be used by the first UE in a set of shared sensing signal resources.
  • the operations of 1630 may be performed according to the methods described herein. In some examples, aspects of the operations of 1630 may be performed by a sensing signal pattern indication manager as described with reference to FIGs. 7 through 10.
  • the UE may transmit one or more sensing signals according to the first sensing signal pattern on the set of shared sensing signal resources.
  • the operations of 1635 may be performed according to the methods described herein. In some examples, aspects of the operations of 1635 may be performed by a sensing signal manager as described with reference to FIGs. 7 through 10.
  • FIG. 17 shows a flowchart illustrating a method 1700 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the operations of method 1700 may be implemented by a base station 105 or its components as described herein.
  • the operations of method 1700 may be performed by a communications manager as described with reference to FIGs. 11 through 14.
  • a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may perform aspects of the functions described below using special-purpose hardware.
  • the base station may identify a periodic set of resources for sidelink channel allocation to a set of UEs for indication of sensing resources used by the set of UEs for wireless sensing.
  • the operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed by a periodic resource manager as described with reference to FIGs. 11 through 14.
  • the base station may transmit, to the set of UEs, an indication of the periodic set of resources.
  • the operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed by an indication manager as described with reference to FIGs. 11 through 14.
  • FIG. 18 shows a flowchart illustrating a method 1800 that supports shared resource allocation in accordance with aspects of the present disclosure.
  • the operations of method 1800 may be implemented by a base station 105 or its components as described herein.
  • the operations of method 1800 may be performed by a communications manager as described with reference to FIGs. 11 through 14.
  • a base station may execute a set of instructions to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, a base station may perform aspects of the functions described below using special-purpose hardware.
  • the base station may identify a set of shared sensing signal resources for sidelink channel allocation to a set of UEs.
  • the operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed by a sensing signal resource manager as described with reference to FIGs. 11 through 14.
  • the base station may transmit, to the set of UEs, an indication of the set of shared sensing signal resources.
  • the operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed by an indication manager as described with reference to FIGs. 11 through 14.
  • the base station may identify a periodic set of resources for sidelink channel allocation to the set of UEs for indication of sensing resources used by the set of UEs for wireless sensing.
  • the operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed by a periodic resource manager as described with reference to FIGs. 11 through 14.
  • the base station may transmit, to the set of UEs, an indication of the periodic set of resources.
  • the operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed by an indication manager as described with reference to FIGs. 11 through 14.
  • LTE, LTE-A, LTE-A Pro, or NR may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks.
  • the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB) , Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi) , IEEE 802.16 (WiMAX) , IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
  • UMB Ultra Mobile Broadband
  • IEEE Institute of Electrical and Electronics Engineers
  • Wi-Fi Institute of Electrical and Electronics Engineers
  • WiMAX IEEE 802.16
  • IEEE 802.20 Flash-OFDM
  • Information and signals described herein may be represented using any of a variety of different technologies and techniques.
  • data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration) .
  • the functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope of the disclosure and appended claims. For example, due to the nature of software, functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
  • Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special purpose computer.
  • non-transitory computer-readable media may include random-access memory (RAM) , read-only memory (ROM) , electrically erasable programmable ROM (EEPROM) , flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • RAM random-access memory
  • ROM read-only memory
  • EEPROM electrically erasable programmable ROM
  • flash memory compact disk (CD) ROM or other optical disk storage
  • CD compact disk
  • magnetic disk storage or other magnetic storage devices or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor.
  • Disk and disc include CD, laser disc, optical disc, digital versatile disc (DVD) , floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

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

Abstract

L'invention concerne des procédés, des systèmes et des dispositifs pour des communications sans fil. De manière générale, un équipement utilisateur (UE) peut surveiller un ensemble périodique de ressources sur un canal de liaison latérale attribué pour la transmission d'indications de ressources de détection utilisées par une pluralité d'UE pour une détection sans fil. L'UE peut déterminer, d'après la surveillance, qu'au moins une ressource de l'ensemble périodique de ressources est disponible pour être utilisée par l'UE pour indiquer les ressources de détection devant être utilisées par l'UE pour une détection sans fil. L'UE peut transmettre, dans la ou les ressources de l'ensemble périodique de ressources disponibles, une indication d'un premier motif de signal de détection devant être utilisé par l'UE dans un ensemble de ressources de signal de détection partagées. L'UE peut également transmettre un ou plusieurs signaux de détection en fonction du premier motif de signal de détection sur l'ensemble de ressources de signal de détection partagées.
PCT/CN2020/108072 2020-08-10 2020-08-10 Attribution de ressource partagée WO2022032422A1 (fr)

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