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WO2025060091A1 - Découverte de liaison latérale efficace pour service de détection - Google Patents

Découverte de liaison latérale efficace pour service de détection Download PDF

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Publication number
WO2025060091A1
WO2025060091A1 PCT/CN2023/120831 CN2023120831W WO2025060091A1 WO 2025060091 A1 WO2025060091 A1 WO 2025060091A1 CN 2023120831 W CN2023120831 W CN 2023120831W WO 2025060091 A1 WO2025060091 A1 WO 2025060091A1
Authority
WO
WIPO (PCT)
Prior art keywords
discovery
sensing
sensing service
prose
service
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2023/120831
Other languages
English (en)
Inventor
Jian Guo Liu
Yanni ZHOU
Wen Jian WANG
Fei Gao
Chao Jun XU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Original Assignee
Nokia Shanghai Bell Co Ltd
Nokia Solutions and Networks Oy
Nokia Technologies Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nokia Shanghai Bell Co Ltd, Nokia Solutions and Networks Oy, Nokia Technologies Oy filed Critical Nokia Shanghai Bell Co Ltd
Priority to PCT/CN2023/120831 priority Critical patent/WO2025060091A1/fr
Publication of WO2025060091A1 publication Critical patent/WO2025060091A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
    • G01S7/006—Transmission of data between radar, sonar or lidar systems and remote stations using shared front-end circuitry, e.g. antennas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/003—Bistatic radar systems; Multistatic radar systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/60—Context-dependent security
    • H04W12/63—Location-dependent; Proximity-dependent
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Definitions

  • Various example embodiments relate to the field of communication and in particular, to devices, methods, apparatuses and a computer readable storage medium for efficient sidelink discovery for a sensing service.
  • the current study objectives comprise study use cases and potential requirements for enhancement of the 5G system to provide integrated communication and sensing services addressing different target verticals and applications, e.g., autonomous/assisted driving, vehicle to everything (V2X) , aviation/unmanned aerial vehicles (UAVs) , 3D map reconstruction, smart city/factories, public sectors, healthcare, smart home, maritime sector.
  • V2X vehicle to everything
  • UAVs aviation/unmanned aerial vehicles
  • 3D map reconstruction smart city/factories, public sectors, healthcare, smart home, maritime sector.
  • example embodiments of the present disclosure provide a solution for efficient sidelink discovery for a sensing service, especially for integrated sensing and communication.
  • a first device comprising at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the first device at least to: obtain a first request message for requesting a sensing service associated with a third device; transmit, to a second device, a second request message for requesting discovery authorization for a third device; and receive, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • a second device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the second device at least to: receive, from a first device, a second request message for requesting discovery authorization for a third device; and transmit, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • a third device comprises at least one processor and at least one memory storing instructions that, when executed by the at least one processor, cause the third device at least to: receive, from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and transmit, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • a method comprises obtaining a first request message for requesting a sensing service associated with a third device; transmitting, at a first device to a second device, a second request message for requesting discovery authorization for a third device; and receiving, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • a method comprises receiving, at a second device from a first device, a second request message for requesting discovery authorization for a third device; and transmitting, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • a method comprises receiving, at a third device from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and transmitting, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • an apparatus comprising means for obtaining, at a first device, a first request message for requesting a sensing service associated with a third device; means for transmitting, to a second device, a second request message for requesting discovery authorization for a third device; and means for receiving, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • an apparatus comprises means for receiving, at a second device from a first device, a second request message for requesting discovery authorization for a third device; and means for transmitting, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • an apparatus comprising means for receiving, at a third device from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and means for transmitting, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • a non-transitory computer readable medium comprising program instructions for causing an apparatus to perform at least the method according to any one of the above fourth to sixth aspect.
  • a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to: obtain a first request message for requesting a sensing service associated with a third device; transmit, to a second device, a second request message for requesting discovery authorization for a third device; and receive, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to: receive, from a first device, a second request message for requesting discovery authorization for a third device; and transmit, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • a computer program comprising instructions, which, when executed by an apparatus, cause the apparatus at least to: receive, from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and transmit, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • a fourteenth aspect there is provided a first device.
  • the first device comprises obtaining circuitry configured to obtain a first request message for requesting a sensing service associated with a third device; transmitting circuitry configured to transmit, to a second device, a second request message for requesting discovery authorization for a third device; and receiving circuitry configured to receive, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • a second device comprises receiving circuitry configured to receive, from a first device, a second request message for requesting discovery authorization for a third device; and transmitting circuitry configured to transmit, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • a third device comprises receiving circuitry configured to receive, from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and transmitting circuitry configured to transmit, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • Fig. 1A illustrates an example network environment in which example embodiments of the present disclosure may be implemented
  • Fig. 1B illustrates an example of people’s respiration affected 3GPP wireless signal propagation in an indoor environment
  • Fig. 1C illustrates an example of overall procedure for proximity services (ProSe) direct discovery corresponding to Model A associated with some embodiments of the present disclosure
  • Fig. 1D illustrates an example of overall procedure for ProSe direct discovery corresponding to Model B associated with some embodiments of the present disclosure
  • Fig. 2A illustrates an example signaling chart illustrating an example process according to some embodiments of the present disclosure
  • Fig. 2B illustrates another example signaling chart illustrating an example process according to some embodiments of the present disclosure
  • Fig. 3 illustrates an example procedure of proposed solution according to some embodiments of the present disclosure
  • Fig. 4 illustrates a flowchart of a method implemented at a first device according to some other embodiments of the present disclosure
  • Fig. 5 illustrates a flowchart of a method implemented at a second device according to some embodiments of the present disclosure
  • Fig. 6 illustrates a flowchart of a method implemented at a third device according to some other embodiments of the present disclosure
  • Fig. 7 illustrates a simplified block diagram of an apparatus that is suitable for implementing embodiments of the present disclosure.
  • Fig. 8 illustrates a block diagram of an example computer readable medium in accordance with some embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • circuitry may refer to one or more or all of the following:
  • circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and/or firmware.
  • circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
  • the term “communication network” refers to a network following any suitable communication standards, such as long term evolution (LTE) , LTE-advanced (LTE-A) , wideband code division multiple access (WCDMA) , high-speed packet access (HSPA) , narrow band internet of things (NB-IoT) and so on.
  • LTE long term evolution
  • LTE-A LTE-advanced
  • WCDMA wideband code division multiple access
  • HSPA high-speed packet access
  • NB-IoT narrow band internet of things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • suitable generation communication protocols including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the future fifth generation (5G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the a
  • the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom.
  • the network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, a low power node such as a femto, a pico, and so forth, depending on the applied terminology and technology.
  • BS base station
  • AP access point
  • NodeB or NB node B
  • eNodeB or eNB evolved NodeB
  • NR NB also referred to as a gNB
  • RRU Remote Radio Unit
  • RH radio header
  • terminal device refers to any end device that may be capable of wireless communication.
  • a terminal device may also be referred to as a communication device, user equipment (UE) , a subscriber station (SS) , a portable subscriber station, a mobile station (MS) , or an access terminal (AT) .
  • UE user equipment
  • SS subscriber station
  • MS mobile station
  • AT access terminal
  • the terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an internet of things (loT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and/or other wireless devices operating in an industrial and/or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and/
  • Fig. 1A illustrates an example network environment 100A in which example embodiments of the present disclosure may be implemented.
  • the environment 100A which may be a part of a communication network, comprises terminal devices, network devices.
  • the communication network 100A may comprise some network elements of a core network 150, the core network 150 comprises a first device 110 (hereinafter may also be referred to as sensing function 110, SF 110 or sensing management function 110) , and a second device 120 (hereinafter may also be referred to as ProSe function 120 or PSF 120) .
  • a first device 110 hereinafter may also be referred to as sensing function 110, SF 110 or sensing management function 110
  • a second device 120 hereinafter may also be referred to as ProSe function 120 or PSF 120
  • the system 100A may further comprise a third device 130 (hereinafter may also be referred to as sensing initiated UE 130) and a fourth device 140 (hereinafter may also be referred to as sensing assisted UE 140) .
  • the sensing initiated UE 130 may discover other terminal devices (such as the sensing assisted UE 140) for assisting the sensing initiated UE 130 in performing sensing for a sensing service.
  • the sensing function 110 may be located at the access and mobility management function (AMF) , location management function (LMF) , session management function (SeMF) of the core network 150 or other network device.
  • the sensing initiated UE 110 may interact with the sensing assisted UE 140 and the sensing function 120.
  • the ProSe function 130 may interact with the sensing function 120.
  • the system 100A may include any suitable number of devices adapted for implementing embodiments of the present disclosure. Although not shown, it would be appreciated that one or more sensing assisted UEs may be located in the environment 100A.
  • Communications in the communication system 100A may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) and the fifth generation (5G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • s cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) and the fifth generation (5G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • IEEE Institute for Electrical and Electronics Engineers
  • the communication may utilize any proper wireless communication technology, comprising but not limited to: code division multiple access (CDMA) , frequency division multiple access (FDMA) , time division multiple access (TDMA) , frequency division duplex (FDD) , time division duplex (TDD) , multiple-input multiple-output (MIMO) , orthogonal frequency division multiple (OFDM) , discrete Fourier transform spread OFDM (DFT-s-OFDM) and/or any other technologies currently known or to be developed in the future.
  • CDMA code division multiple access
  • FDMA frequency division multiple access
  • TDMA time division multiple access
  • FDD frequency division duplex
  • TDD time division duplex
  • MIMO multiple-input multiple-output
  • OFDM orthogonal frequency division multiple
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • 3GPP system are designed for catering people’s communication purpose, whose wireless signals are very rich and can be accessible ubiquitously. With additional processing, 3GPP system will breed new opportunities with contactless sensing technologies applied, such as smart health, smart home, smart city and even smart space.
  • Sleep Monitoring application describes the case that a human’s sleep situation is monitored without any wearable device. Instead of utilizing capacitors as propagation medium, Sleep Monitoring application effectively reuses the current ubiquitously accessible medium, that is wireless signals to realize the sensing purpose. People’s presence, movement and even respiration will affect the wireless signal propagation, which on the receiving side will be presented as the fluctuation of waveform’s intensity, phase shift and etc.
  • Fig. 1B illustrates an example of how people’s respiration can affect 3GPP wireless signal propagation in an indoor environment, in which example embodiments of the present disclosure may be implemented.
  • Fig. 1B shows that how the wireless signals that are propagated via the established direct network connection (i.e. between the radio access network and 5G UE) will be affected and distorted by the target sensing object.
  • the established direct network connection i.e. between the radio access network and 5G UE
  • the target sensing object i.e. between the radio access network and 5G UE
  • the micro-Doppler effect in radar.
  • This sleep monitoring application can help to diagnose early symptoms of some diseases, e.g. milder symptoms of sleep apnea before it develops worse.
  • the application server can give instructions to the user on whether or not the user is experiencing sleep apnea, and the user in return can adjust lifestyles such as losing weight or quitting smoking to avoid worse cases.
  • a person’s respiratory rate is the number of breaths taken per minute.
  • the normal respiration rate for an adult at rest is 12 to 20 breaths per minute.
  • a respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
  • the breathing stoppage duration is the amount of time that a sleep apnea patient stops breathing, which can be from 10 seconds to two minutes or more. Breathing stoppage duration equals to 10 seconds is taken as an example as the trigger of the event reporting to the application server. When the user triggers this sensing service, the sensing system will monitor this special event and report it to the application server.
  • the device installing this sleep monitoring application is 5G UE.
  • the MNO can also be the sleep monitoring application provider.
  • the corresponding service flow and potential requirements are listed as below:
  • Fig. 1C illustrates an example of overall procedure 100C for proximity services (ProSe) direct discovery corresponding to model A associated with some embodiments of the present disclosure.
  • the model A defines two roles (announcing UE and monitoring UE) for the ProSe-enabled UEs that are participating in ProSe Direct Discovery.
  • the announcing UE announces certain information that could be used by UEs in proximity that have permission to discover.
  • the monitoring UE monitors certain information of interest in proximity of announcing UEs.
  • the announcing UE broadcasts discovery messages at pre-defined discovery intervals and the monitoring UEs that are interested in these messages read them and process them.
  • model A is equivalent to “I am here” since the announcing UE would broadcast information about itself e.g., its ProSe application code in the discovery message. Both open and restricted discovery types are supported by model A. It is to be understood that the ProSe direct discovery is also called as the sidelink discovery in NR.
  • procedure 100C in Fig. 1C is only applied for open and restricted ProSe direct discovery when the ProSe enabled UE is served by E-UTRAN.
  • procedure 100C begins at 101.
  • service authorization for ProSe direct services is performed for ProSe direct discovery as described in TS 23.203, clauses 5.2, and 4.5.1. If the UE 110-2 is authorized to perform announcing (e.g. announcing ProSe Application Code or ProSe Restricted Code on PC5) , steps 103a and 105a will be performed.
  • announcing e.g. announcing ProSe Application Code or ProSe Restricted Code on PC5
  • the UE 110-2 when the UE 110-2 is triggered to announce, then it sends a discovery request for announcing to the ProSe Function 120-2 in HPLMN as described in TS 23.203 clauses 5.3.3.2 and 5.3.3.3 for open ProSe direct discovery, and in TS 23.203 clauses 5.3.3.2A and 5.3.3.3A for restricted ProSe Direct Discovery.
  • the ProSe Function 120-2 further interacts with a ProSe Application Server 130-2 for the authorization of the discovery request.
  • the UE 110-2 is provided with ProSe application code/ProSe restricted code, and then it starts announcing on PC5 interface.
  • ProSe restricted code may be provided to UE 110-2 after this procedure.
  • the UE 110-2 waits for the ProSe Restricted Code allocation and starts to announce the ProSe Restricted Code on PC5 after receiving it in announcing alert procedure specified in clause 5.3.5. It should be noted that more details on the access stratum protocol of this step are provided in RAN specifications.
  • steps 103b, 105b and 107b will be performed.
  • the UE 110-2 when the UE 110-2 is triggered to monitor, it sends a discovery request for monitoring to the ProSe Function 120-2 as defined in clauses 5.3.3.4 and 5.3.3.5 at section 5.3 of TS 22.303 (V17.1.0) for open ProSe Direct Discovery, and in clauses 5.3.3.2A and 5.3.3.3A at section 5.3 of TS 22.303 (V17.1.0) for restricted ProSe direct discovery.
  • the ProSe Function 120-2 further interacts with the ProSe application server 130-2 for the authorization of the discovery request.
  • the UE 110-2 is provided with a discovery filter consisting of ProSe application code (s) /ProSe restricted code (s) and/or ProSe application mask (s) it starts monitoring for these ProSe application codes/ProSe restricted codes on the PC5 interface.
  • the UE 110-2 detects that one or more ProSe application code (s) /ProSe restricted code (s) that match the filter (see clause 4.6.4.2) , it reports the ProSe application code (s) /ProSe restricted code (s) to the ProSe function 120-2 as defined in clause 5.3.4.
  • Fig. 1D illustrates an example of overall procedure 100D for ProSe direct discovery corresponding to Model B associated with some embodiments of the present disclosure.
  • This Model B when restricted discovery type is used, defines two roles (discoverer UE and discoveree UE) for the ProSe-enabled UEs that are participating in ProSe direct discovery.
  • Discoverer UE transmits a request containing certain information about what it is interested to discover.
  • Discoveree UE receives the request message can respond with some information related to the discoverer’s request.
  • the discoverer UE sends information about other UEs that would like to receive responses from, e.g. the information can be about a ProSe application identity corresponding to a group and the members of the group can respond.
  • the discoverer UE and Discoveree UE can announce in the carrier frequency signalled by the serving PLMN.
  • the carrier frequency may be operated by a PLMN other than the serving PLMN, as described in TS 36.331.
  • the discoverer UE and discoveree UE are allowed to monitor or announce in the serving PLMN and local PLMNs when authorized.
  • the public safety discovery is considered restricted.
  • the monitoring UE/discoverer UE needs to have authorization (such as through pre-provisioned parameters) to perform discovery of the appropriate service (s) .
  • This procedure 100D is applied for restricted ProSe direct discovery when the ProSe enabled UE 110-3 is served by E-UTRAN.
  • procedure 100D begins at 102, service authorization for ProSe direct services is performed for ProSe direct discovery as defined in clauses 5.2 and 4.5.1. If the UE 110-3 is authorized to perform restricted ProSe direct discovery, Model B, as a discoveree UE 110-3, steps 104a, 106a and 108a will be performed.
  • the UE 110-3 when the UE 110-3 is triggered to perform restricted ProSe direct discovery, Model B, it sends a discovery request to the ProSe Function 120-3 in the HPLMN to obtain a ProSe Response Code as defined in clauses 5.3.3A. 2 and 5.3.3A. 3.
  • the ProSe Function 120-3 further interacts with a ProSe Application Server 130-3 for the authorization of the discovery request.
  • the UE 110-3 starts monitoring for the ProSe Query Code on PC5 interface.
  • the UE 110-3 announces the associated ProSe Response Code on the PC5 interface. If the UE 110-3 is authorized to perform restricted ProSe direct discovery, Model B, as a discoverer UE, steps 104b, 106b, 108b and 110b will be performed.
  • the UE 110-3 when the UE 110-3 is triggered to perform restricted ProSe direct discovery, Model B, it sends a discovery request to the ProSe Function 120-3 in the HPLMN for a ProSe Query Code as defined in clauses 5.3.3A. 4 and 5.3.3A. 5.
  • the ProSe Function 120-3 further interacts with ProSe Application Server 130-3 for the authorization of the discovery request.
  • the UE 110-3 announces the ProSe Query Code on the PC5 interface.
  • the UE 110-3 starts to monitor on PC5 interface for any ProSe Response Code (s) that might match the Discovery Response Filter (s) .
  • the UE 110-3 detects a match for one or more ProSe Response Code (s) , it reports the ProSe Response Code to the ProSe Function 120-3 as defined in clauses 5.3.4A. 1 and 5.3.4A. 2.
  • the base station or the sensing assisted UE can coordinate with the 5G UE (which initiates the sensing service request, called the sensing initiated UE) to perform the sensing measurement.
  • the base station (or the sensing assisted UE) and the sensing discoverer can be transmitter and receiver, or vice versa.
  • the target sensing signal e.g., breath or hear beat signal
  • the target sensing signal is very weak
  • the 5G system determine discover and configure at least a UE (i.e., the sensing assisted UE) to assist the sensing initiated UE to perform the sensing measurement if a base station is not in location area of the sensing service (i.e. there is no LoS path between the sensing initiated UE and the base station) .
  • a base station is not in location area of the sensing service (i.e. there is no LoS path between the sensing initiated UE and the base station) .
  • ProSe direct discovery procedure was defined by the UE to discover other wireless terminals (e.g., UEs) in its proximity, using E-UTRA direct radio signals via the PC5 interface.
  • the LTE ProSe direct discovery solution could also be reused for NR sidelink. Even so, the problem of discovering and selecting a suitable terminal for support of sensing measurement service is not addressed.
  • it In order to support ProSe-based sensing service, it’s required for 5G system to discover and configure ProSe-enabled UE for sensing.
  • an efficient ProSe discovery method is proposed for support of sidelink-based sensing service, especially for indoor scenario.
  • an efficient sidelink discovery solution is provided for a sensing service, for example, in integrated sensing and communication (ISAC) .
  • a first device obtains a first request message for requesting a sensing service associated with a third device. Then the first device transmits, to a second device, a second request message for requesting discovery authorization for the third device.
  • the discovery authorization is provided by the second device
  • the first device receives, from the second device, a discovery authorization message and a discovery response message associated with the third device. In this way, the sensing latency is improved and the additional signal overhead is reduced. Therefore, the performance of sensing service is improved.
  • Fig. 2A illustrates a signaling chart illustrating an example process 200A according to some embodiments of the present disclosure.
  • the process 200A will be described with reference to Fig. 1A.
  • the process 200A may involve the first device 110 and the second device 120. It would be appreciated that although the process 200A has been described in the communication environment 100A of Fig. 1A, this process may be likewise applied to other communication scenarios with similar issues.
  • the first device 110 obtains 211a first request message for requesting a sensing service associated with a third device, then the first device 110 transmits 215 a second request message 216 for requesting discovery authorization for the third device 130 to the second device 120.
  • the sensing service may be associated with the third device in a variety of association approaches.
  • the third device may initiate a sensing request for the sensing service.
  • the third device may participate in the sensing service as a sensing transmitter or sensing receiver. It is to be understood that, the sensing service may be associated with the third device in a combination of a variety of association approaches.
  • the first device 110 may obtain the first request message by receiving the first request message from at least one of a third device, an application function, or a sensing server. If the second message is obtained from other function entity or device, the third device (e.g., an identifier of the third device) can be indicated by the second request message.
  • the third device e.g., an identifier of the third device
  • the sensing function i.e., the first device 110
  • the ProSe function i.e., the second device 120
  • the sensing initiated UE as a monitoring or discoverer UE
  • the sensing assisted UE would obtain ProSe discovery authorization as an announcing UE for ProSe discovery model A or a discoveree UE for ProSe discovery model B in ProSe direct discovery.
  • the first device 110 can be a function of sensing management function (SeMF) entity, which is responsible for: sensing service authorization involved in UE, area, environment privacy checks; sensing method selection, selection and configuration of sensing nodes (e.g., sensing transmitter, or sensing receiver) ; measurement data collection, processing and sending sensing result/output, or any combination of two or more of the above-mentioned items.
  • the first device 110 can be located at a network node (e.g., the LMF, AMF or SeMF) or a terminal device.
  • the first device 110 may further receive first information of sensing assistance from the third device 130.
  • the application function of a sensing initiated UE 130 can request a sensing service to the SF 110.
  • the first information of sensing assistance may be carried by the first request message or other message.
  • the sensing initiated UE 130 can further provide sensing assistance information to the SF 110 through the sensing request message or other message.
  • the first information of sensing assistance may comprise a location area of the sensing service, location information of the third device, a sensing role of the third device in the sensing service, a type of the sensing service, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the location area of the sensing service may indicate where the sensing service would happen which could be a room, a bed or certain area for sensing operation.
  • the sensing role may be optionally used to indicate whether the sensing initiated UE is a sensing transmitter or a sensing receiver in the sensing service.
  • the time of the sensing service may indicate when the sensing initiated UE would support of the sensing assisted UE for the sensing service.
  • the second request message 216 may indicate that the third device 130 requests to discover one or more terminal devices for supporting the sensing service. In other words, the second request message would indicate that the sensing initiated UE needs to discover one or more nearby sensing assisted UEs for support of the sensing service.
  • the first device 110 may further transmit second information of sensing assistance to the second device 120.
  • the second information of sensing assistance may comprise a location area of the sensing service, location information of the third device, an identifier of the third device, a sensing role of the third device in the sensing service, a discovery role of the third device in a discovery model, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the identifier of the third device is used to identify the third device (i.e., the sensing initiated UE) .
  • the sensing role may comprise a sensing transmitter or a sensing receiver.
  • the discovery role may be used to indicate whether the sensing initiated UE is a monitoring UE for ProSe discovery model A or a discoverer UE for ProSe Discovery model B.
  • the second information of sensing assistance may be carried by the second request message.
  • the first device 110 may transmit the second request message to the second device 120. In some embodiments, if a condition of bi-static sensing working mode between the third device 130 and a network device is not met, the first device 110 may transmit the second request message to the second device 120.
  • the second request message can be triggered in the case that the SF 110 authorizes the sensing initiated UE for the sensing service. In another example, the second request message can be triggered if the condition is not satisfied to support bi-static sensing working mode between the sensing initiated UE and gNB.
  • the condition may comprise that no network device locates at the location area of the sensing service, no line-of-sight (LoS) path exists between the third device and a network device, no reflection path arrives at a sensing receiver via a sensing target, or any combination of two or more of the above-mentioned items.
  • LoS line-of-sight
  • the sensing initiated UE and gNB no reflection path via sensing target arrives at the sensing receiver, in which the sensing receiver may be the gNB or the sensing initiated UE.
  • the second device 120 after receiving 217 the second request message 216 from the first device 110, based on determining 219 to provide the discovery authorization, the second device 120 transmits 221 a discovery authorization message and a discovery response message associated with the third device 222 to the first device 110.
  • the first device 110 receives the discovery authorization message and the discovery response message 222 from the second device 120.
  • the second device 120 may determine 219 to provide the discovery authorization based on the third device 130 is a ProSe-enabled device registered at one or both of the first device or a ProSe discovery server, the one or more terminal devices are located at the location area of the sensing service, the one or more terminal devices are announcing UEs in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, the one or more terminal devices are discoveree UEs in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, the one or more terminal devices are a sensing receivers in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the one or more terminal devices matches the type of the sensing service indicated in the second information, a time of the sensing service provided by one of the one or more terminal devices matches the time of the sensing service indicated in the
  • the discovery authorization can be determined based on: the sensing initiated UE 130 is at least a ProSe-enabled UE registered at the PSF 120 or/and the ProSe discovery server; at least one of sensing assisted UEs is located at the scope of the sensing service location area; at least one of sensing assisted UEs is an announcing UE if the sensing initiated UE 130 is configured as a monitoring UE via the discovery request; at least one of sensing assisted UEs is a discoveree UE if the sensing initiated UE 130 is configured as a discoverer UE via the discovery request.
  • the PSF 120 can determine whether to authorize the discovery request at least based on the second information of sensing assistance.
  • the discovery response message may comprise: a ProSe discovery filter for discovery model A, a ProSe query code and a discovery response filter for discovery model B, or a combination of the above-mentioned items.
  • the discovery response message may be determined at least based on the second information of sensing assistance and associated with at least one of the ProSe-enabled UE (i.e., sensing assisted UE) .
  • the discovery response message can be associated with at least one sensing assisted UE as discussed for the determination of the discovery authorization.
  • Fig. 2B illustrates a signaling chart illustrating an example process 200B according to some embodiments of the present disclosure.
  • the process 200B will be described with reference to Fig. 1A.
  • the process 200B may involve the first device 110 and the third device 130. It would be appreciated that although the process 200B has been described in the communication environment 100A of Fig. 1A, this process may be likewise applied to other communication scenarios with similar issues.
  • the first device 110 may transmit 225 a third request message 226 to the third device 130.
  • the third request message 226 is for requesting the third device 130 to discover one or more terminal devices, and the third request message may comprise a configuration for the third device 130. In other words, the configuration can be carried in the third request message 226.
  • the SF 110 requests the sensing initiated UE 130 to discover UE (s) (i.e., the sensing assisted UE) based on a configuration at least associated with the discovery response message.
  • the first device 110 may further determine the configuration based on the discovery response message, at least one sensing requirement for the sensing service or a combination of the above-mentioned items.
  • the at least one sensing requirement may comprise the time of the sensing service, a discovery metric related to sidelink quality between the sensing initiated UE and sensing assisted UE.
  • the configuration may comprise a discovery filter for the discovery model A indicated by the discovery response message, a query code and response filter for the discovery model B indicated by the discovery response message, a discovery metric associated with a sidelink quality between the third device and the terminal device, a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service, or any combination of two or more of the above-mentioned items.
  • the configuration may comprise the RS configuration.
  • the third device may detect the discovery RS from the at least one terminal device, then third device may evaluate if the sidelink quality detected based on discovery RS satisfies requirements for the sensing service. If the discovery RS detected is above a threshold, the sidelink quality between the third device and the at least one terminal device may satisfy requirements for the sensing service. Then the at least one terminal device may be reported to the first device 110.
  • the third device 130 receives 227 the third request message 226 from the first device 110. Based on discovering 229 the at least one terminal device for supporting the sensing service, the third device 130 transmits 231 a discovery report 232 associated with at least one terminal device to the first device 110. For example, the sensing initiated UE 130 discovers at least one sensing assisted UE based on the configuration and sends a discovery report associated with the at least one sensing assisted UE to the SF 110.
  • the third device 130 may determine the at least one terminal device for supporting the sensing service.
  • the sensing initiated UE may determine if the received or detected ProSe application/restricted Code matches the ProSe discovery filter signaled by the discovery configuration.
  • the sensing initiated UE may further evaluate if the discovery metric is satisfied for the sensing service in the case that the discovery metric is signaled by the configuration.
  • the third device 130 may determine the at least one terminal device for supporting the sensing service. In an example, if at least one qualified UE is discovered based on the determination of the received or detected ProSe discovery response code matches the ProSe discovery response filter signalled by the discovery configuration, it generates a discovery report and sends the discovery report to the SF 110.
  • the discovery report may comprise ProSe application code or restricted code for one of the at least one terminal device, the ProSe discovery response code for one of the at least one terminal device, an identifier for one of the at least one terminal device, an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is indicated by the configuration, a sidelink quality between the third device and one of the at least one terminal device, an identifier of a discovery RS associated with one of the at least one terminal device, or any combination of two or more of the above-mentioned items.
  • the discovery metric may comprise reference signal received power (RSRP) is above a first threshold, received signal strength indicator (RSSI) is above a second threshold, an LoS path exists between the first device and one of the at least one terminal device, the at least one terminal device locates at the location area of the sensing service, one of the at least one terminal device is an announcing UE in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, one of the at least one terminal device is a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, one of the at least one terminal device is a sensing receiver in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the at least one terminal device matches the type of the sensing service indicated in the first information, a time of the sensing service provided by one of the at least one terminal device matches
  • the sensing initiated UE may check if the first information matches the at least one terminal device. For instance, if the sensing initiated UE is configured as a sensing transmitter and a terminal device is a sensing receiver, the first information matches the terminal device and the discovery metric may be satisfied for the sensing service.
  • the first device 110 may receive 233 the discovery report 232 from the third device 130. Based on the discovery report, the first device 110 may determine the at least one terminal device for supporting the sensing service.
  • the first device 110 may further select one or more terminal devices from the at least one terminal device indicated in the discovery report.
  • the SF 110 can determine and select one or more sensing assisted UEs for the sensing service based on the discovery report.
  • the first device 110 may select the one or more terminal devices. For example, in the case of bi-static working mode, the SF 110 can select one UE from the discovered sensing assisted UEs with best sidelink quality for the sensing service.
  • the first device 110 may select the one or more terminal devices.
  • the SF 110 can select one or more sensing assisted UEs for the sensing services where the one or more UEs are indicated in the discovery report that the discover metric is satisfied.
  • the first device 110 may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device.
  • the second device may be a proximity-based services (ProSe) function (PSF) .
  • the third device 130 may be a terminal device.
  • some embodiments of the present disclosure propose a solution to facilitate efficient ProSe discovery for sensing service, then the SF can select qualified UEs for support of the sensing service.
  • the SF may request the ProSe authorization and response from the PSF and thus avoid the sensing initiated UE from initiating a new discovery request procedure to the PSF.
  • a new signal related to the discovery report is introduced between the SF and sensing initiated UE.
  • the solution improves sensing latency and reduces additional signal overhead between sensing initiated UE and PSF.
  • the sensing initiated UE directly transmits the discovery report to the SF without forwarding the discovery report via the PSF. In this way, the solution reduces signal exchange between PSF and SF, reduces sensing latency and minimizes specification efforts.
  • Fig. 3 illustrates an example procedure of proposed solution according to some embodiments of the present disclosure.
  • the procedure 300 may involve a sensing assisted UE 301, a sensing initiated UE 302, a sensing function 303, and a ProSe function 304.
  • the process 300 can be considered as a more specific example of the process 200A in Fig. 2A or the process 200B in in Fig. 2B.
  • the sensing assisted UE 301 in Fig. 3 may be an example of the fourth device 140 in Fig. 1A
  • the sensing initiated UE 302 in Fig. 3 may be an example of the third device 130 in Fig. 1A or Fig. 2
  • the sensing function 303 in Fig. 3 may be an example of the first device 110 in Fig.
  • the ProSe function 304 in Fig. 3 may be an example of the second device 120 in Fig. 1A or Fig. 2. It’s assumed that the sensing assisted UE 301 would obtain ProSe discovery authorization as an announcing UE for ProSe discovery model A or a discoveree UE for ProSe discovery model B.
  • the application function of a sensing initiated UE 302 may request 311 a sensing service to the sensing function 303, and the sensing initiated UE 302 may further provide sensing assistance information to the sensing function 303 through the sensing request message. In some embodiments, the sensing initiated UE 302 may further provide sensing assistance information to the sensing function 303 through other message.
  • the sensing function 303 upon receiving the sensing request, requests a discovery authorization for the sensing initiated UE 302.
  • the ProSe function 304 delivers ProSe discovery authorization and response related to sensing initiated UE 302 to the sensing function 303 if it determines to authorize the discovery operation.
  • the sensing function 303 upon receiving ProSe discovery authorization from the ProSe function 304, the sensing function 303 requests the sensing initiated UE 302 to discover UE for the sensing service.
  • the discovery configuration can be carried in the request message, which can be determined based on the discovery response or/and sensing requirement for the sensing service (e.g., a discovery metric related to sidelink quality) .
  • the discovery configuration may include a ProSe discovery filter for model A signalled by the discovery response.
  • the discovery configuration may include a ProSe query code and response filter for model B signalled by the discovery response.
  • the discovery configuration may include a discovery metric about the sidelink quality (e.g., RSRP, RSSI) .
  • the sensing initiated UE 302 may manage to discover at least one qualified sensing assisted UE 301 for the sensing service. If at least one qualified sensing assisted UE is discovered, it generates a discovery report and transmits 323 the discovery report to the sensing function 303.
  • the sensing assisted UE 301 has been configured as announcing UE and thus announces the ProSe application/restricted code through PC5.
  • the sensing initiated UE 302 has been configured as monitoring UE and thus monitors the ProSe application/restricted code transmission on the PC5 from the sensing assisted UE.
  • the discovery report may include the ProSe application/restricted code or/and the identifier of the sensing assisted UE 301 and the discovery report may include an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is signaled by the discovery configuration.
  • the sensing initiated UE 302 has been configured as discoverer UE and thus sends the ProSe query code over PC5.
  • the sensing assisted UE 301 has been configured as discoveree UE and thus monitor ProSe query code over PC5 and the sensing assisted UE 301 determines whether the ProSe query code matches the ProSe discovery filter (s) .
  • the sensing assisted UE 301 sends a ProSe response code over PC5.
  • the sensing initiated UE 302 detects the ProSe discovery response code over the PC5 from the sensing assisted UE 301.
  • the sensing initiated UE 302 determines if the detected ProSe discovery response code matches the ProSe discovery response filter signaled by the discovery configuration and the sensing initiated UE may further evaluate if the discovery metric is satisfied for the sensing service in the case that the discovery metric is signaled by the discovery configuration.
  • the sensing initiated UE 302 generates a discovery report and sends the discovery report to the SF.
  • the discovery report may include the ProSe response code and the identifier of the sensing assisted UE and the discovery report may include an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is signaled by the discovery configuration.
  • the sidelink quality between the sensing initiated UE and the discovered sensing assisted UE (s) may be signaled in the discovery report, where the sidelink quality can be RSRP, RSSI, or other sidelink quality indication.
  • the sensing function 303 may determine and select one or more sensing assisted UEs for the sensing service based on the discovery report.
  • Fig. 4 shows a flowchart of an example method 400 implemented at a first device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 400 will be described from the perspective of the first device 110 with reference to Fig. 1A.
  • the first device 110 obtains a first request message for requesting a sensing service associated with a third device.
  • the first device 110 transmits, to a second device, a second request message for requesting discovery authorization for a third device.
  • the first device 110 receives, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • the first device 110 may further receive first information of sensing assistance from the third device.
  • the first information of sensing assistance may comprise a location area of the sensing service, location information of the third device, a sensing role of the third device in the sensing service, a type of the sensing service, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the first device 110 may be caused to obtain the first request message by at least one of the following: receiving the first request message from the third device; or obtaining the first request message from a sensing server.
  • the second request message may indicate that the third device requests to discover one or more terminal devices for supporting the sensing service.
  • the first device 110 may further transmit second information of sensing assistance to the second device.
  • the second information of sensing assistance may comprise a location area of the sensing service, location information of the third device, an identifier of the third device, a sensing role of the third device in the sensing service, a discovery role of the third device in a discovery model, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the second information of sensing assistance may be carried by the second request message.
  • the first device 110 may transmit the second request message by: based on determining to authorize the third device for the sensing service, transmitting the second request message to the second device; based on determining that a condition of bi-static sensing working mode between the third device and a network device is not met, transmitting the second request message to the second device, or a combination of the above-mentioned two items.
  • the condition may comprise no network device locates at the location area of the sensing service, no line-of-sight (LoS) path exists between the third device and a network device, no reflection path arrives at a sensing receiver via a sensing target, or any combination of two or more of the above-mentioned items.
  • LoS line-of-sight
  • the discovery authorization may be provided based on: the third device is a ProSe-enabled device registered at one or both of the first device or a ProSe discovery server, the one or more terminal devices are located at the location area of the sensing service, the one or more terminal devices are announcing user equipments (UEs) in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, the one or more terminal devices are discoveree UEs in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, the one or more terminal devices are sensing receivers in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the one or more terminal devices matches the type of the sensing service indicated in the second information, a time of the sensing service provided by one of the one or more terminal devices matches the time of the sensing service indicated in the second information, or any
  • the discovery response message may comprise a ProSe discovery filter for discovery model A in ProSe direct discovery, a ProSe query code and a discovery response filter for discovery model B in ProSe direct discovery, or a combination of the above-mentioned two items.
  • the first device 110 may transmit a third request message for requesting the third device to the third device to discover one or more terminal devices, wherein the third request message comprises a configuration for the third device.
  • the first device 110 may further determine the configuration based on at least one of the discovery response message or at least one sensing requirement for the sensing service.
  • the configuration may comprise a discovery filter for the discovery model A indicated by the discovery response message, a query code and response filter for the discovery model B indicated by the discovery response message, a discovery metric associated with a sidelink quality between the third device and the terminal device, a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service, or any combination of two or more of the above-mentioned items.
  • a discovery filter for the discovery model A indicated by the discovery response message a query code and response filter for the discovery model B indicated by the discovery response message, a discovery metric associated with a sidelink quality between the third device and the terminal device, a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service, or any combination of two or more of the above-mentioned items.
  • RS discovery reference signal
  • the first device 110 may further receive a discovery report associated with at least one terminal device from the third device in the case that the at least one terminal device for supporting the sensing service is determined by the third device, and determine, based on the discovery report, the at least one terminal device for supporting the sensing service.
  • the discovery report may comprise ProSe application code or restricted code for one of the at least one terminal device, ProSe discovery response code for one of the at least one terminal device, an identifier for one of the at least one terminal device, an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is indicated by the configuration, a sidelink quality between the third device and one of the at least one terminal device, an identifier of a discovery RS associated with one of the at least one terminal device, or any combination of two or more of the above-mentioned items.
  • the first device 110 may further select one or more terminal devices from the at least one terminal device indicated in the discovery report.
  • the first device 110 may select the one or more terminal devices by at least one of the following: selecting the one or more terminal devices based on determining that one or more sidelink qualities of the one or more terminal devices are better than sidelink qualities of other terminal devices among the at least one terminal device in the case that bi-static working mode is enabled, or selecting the one or more terminal devices base on determining that one or more discovery metrics of the one or more terminal devices are satisfied for the sensing service in the case that the one or more discovery metrics are indicated by the configuration.
  • the discovery metric may comprise reference signal received power (RSRP) is above a first threshold, received signal strength indicator (RSSI) is above a second threshold, an LoS path exists between the first device and one of the at least one terminal device, the at least one terminal device locates at the location area of the sensing service, one of the at least one terminal device is an announcing UE in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, one of the at least one terminal device is a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, one of the at least one terminal device is a sensing receiver in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the at least one terminal device matches the type of the sensing service indicated in the first information, a time of the sensing service provided by one of the at least one
  • the first device 110 may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device
  • the second device may be a proximity-based services (ProSe) function (PSF)
  • the third device is a terminal device.
  • Fig. 5 shows a flowchart of an example method 500 implemented at a second device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 500 will be described from the perspective of the second device 120 with reference to Fig. 1A.
  • the second device 120 receives, from a first device, a second request message for requesting discovery authorization for a third device.
  • the second device 120 transmits, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • the second request message may indicate that the third device requests to discover one or more terminal devices for supporting the sensing service.
  • the second device 120 may further receive information of sensing assistance from the first device.
  • the information of sensing assistance may comprise a location area of the sensing service, location information of the third device, an identifier of the third device, a sensing role of the third device in the sensing service, a discovery role of the third device in a discovery model, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the information of sensing assistance may be carried by the second request message.
  • the discovery authorization may be provided based on the third device is a ProSe-enabled device registered at one or both of the first device and a ProSe discovery server, the one or more terminal devices are located at the location area of the sensing service, the one or more terminal devices are announcing user equipments (UEs) in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, the one or more terminal devices are discoveree UEs in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, the one or more terminal devices are sensing receivers in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the one or more terminal devices matches the type of the sensing service indicated in the second information, a time of the sensing service provided by one of the one or more terminal devices matches the time of the sensing service indicated in the second information, or any combination
  • the discovery response message may comprise a ProSe discovery filter for discovery model A, a ProSe query code and a discovery response filter for discovery model B, or a combination of the above-mentioned two items.
  • the first device may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device
  • the second device may be a proximity-based services (ProSe) function (PSF)
  • the third device may be a terminal device.
  • Fig. 6 shows a flowchart of an example method 600 implemented at a third device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the third device 130 with reference to Fig. 1A.
  • the third device 130 receives, from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device.
  • the third device 130 transmits, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • the third device 130 may further transmit a first request message for requesting a sensing service to the first device.
  • the third device 130 may further transmit first information of sensing assistance to the first device.
  • the first information of sensing assistance may comprise a location area of the sensing service, location information of the third device, a sensing role of the third device in the sensing service, a type of the sensing service, a time of the sensing service, or any combination of two or more of the above-mentioned items.
  • the third request message may comprise a configuration for the third device.
  • the configuration may be determined based on at least one of a discovery response message received from a second device or at least one sensing requirement for the sensing service.
  • the configuration may comprise a discovery filter for a discovery model A indicated by the discovery response message, a query code and response filter for a discovery model B indicated by the discovery response message, a discovery metric associated with a sidelink quality between the third device and the terminal device, a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service, or any combination of two or more of the above-mentioned items.
  • a discovery filter for a discovery model A indicated by the discovery response message a query code and response filter for a discovery model B indicated by the discovery response message
  • a discovery metric associated with a sidelink quality between the third device and the terminal device a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service, or any combination of two or more of the above-mentioned items.
  • RS discovery reference signal
  • the third device 130 may discover the at least one terminal device for supporting the sensing service by at least one of the following: based on determining that ProSe application code or restricted code received from one of the at least one terminal device matches the discovery filter indicated by the configuration, determining the at least one terminal device for supporting the sensing service; or based on determining that ProSe discovery response code received from one of the at least one terminal device matches the discovery filter indicated by the configuration, determining the at least one terminal device for supporting the sensing service.
  • the discovery report may comprise: the ProSe application code or restricted code for one of the at least one terminal device, the ProSe discovery response code for one of the at least one terminal device, an identifier for one of the at least one terminal device, an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is indicated by the configuration, a sidelink quality between the third device and one of the at least one terminal device, an identifier of a discovery RS associated with one of the at least one terminal device, or any combination of two or more of the above-mentioned items.
  • the discovery metric may comprise reference signal received power (RSRP) is above a first threshold, received signal strength indicator (RSSI) is above a second threshold, an LoS path exists between the first device and one of the at least one terminal device, the at least one terminal device locates at the location area of the sensing service, one of the at least one terminal device is an announcing UE in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery, one of the at least one terminal device is a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery, one of the at least one terminal device is a sensing receiver in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service, a type of the sensing service provided by one of the at least one terminal device matches the type of the sensing service indicated in the first information, a time of the sensing service provided by one of the at least one
  • the first device may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device;
  • the second device may be a proximity-based services (ProSe) function (PSF) ; or the third device may be a terminal device.
  • LMF location management function
  • AMF access and mobility management function
  • SeMF sensing management function
  • PSF proximity-based services
  • the third device may be a terminal device.
  • an apparatus capable of performing any of the method 400 (for example, the first device 110) is provided.
  • the apparatus may comprise means for performing the respective steps of the method 400.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for transmitting, to a second device, a second request message for requesting discovery authorization for a third device based on receiving, from the third device, a first request message for requesting a sensing service; and means for receiving, from the second device, a discovery authorization message and a discovery response message associated with the third device in the case that the discovery authorization is provided by the second device.
  • the apparatus may further comprise means for receiving, from the third device, first information of sensing assistance comprising at least one of the following: a location area of the sensing service; location information of the third device; a sensing role of the third device in the sensing service; a type of the sensing service; or a time of the sensing service.
  • the second request message may indicate that the third device requests to discover one or more terminal devices for supporting the sensing service.
  • the apparatus may further comprise means for transmitting, to the second device, second information of sensing assistance comprising at least one of the following: a location area of the sensing service; location information of the third device; an identifier of the third device; a sensing role of the third device in the sensing service; a discovery role of the third device in a discovery model; or a time of the sensing service.
  • second information of sensing assistance may be carried by the second request message.
  • the means for transmitting the second request message may comprise: means for based on determining to authorize the third device for the sensing service, transmitting the second request message to the second device; or means for based on determining that a condition of bi-static sensing working mode between the third device and a network device is not met, transmitting the second request message to the second device.
  • the condition may comprise at least one of the following: no network device locates at the location area of the sensing service; no line-of-sight (LoS) path exists between the third device and a network device; or no reflection path arrives at a sensing receiver via a sensing target.
  • no network device locates at the location area of the sensing service
  • no line-of-sight (LoS) path exists between the third device and a network device
  • no reflection path arrives at a sensing receiver via a sensing target.
  • the discovery authorization may be provided based on at least one of the following: the third device is a ProSe-enabled device registered at one or both of the first device or a ProSe discovery server; the one or more terminal devices are located at the location area of the sensing service; the one or more terminal devices are announcing user equipments (UEs) in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery; the one or more terminal devices are discoveree UEs in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery; the one or more terminal devices are sensing receivers in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service; a type of the sensing service provided by one of the one or more terminal devices matches the type of the sensing service indicated in the second information; or a time of the sensing service provided by one of the one or more terminal devices matches the time of the sensing service indicated
  • the discovery response message may comprise at least one of the following: a ProSe discovery filter for discovery model A; or a ProSe query code and a discovery response filter for discovery model B.
  • the apparatus may further comprise means for based on receiving the discovery authorization message from the second device, transmitting, to the third device, a third request message for requesting the third device to discover one or more terminal devices, wherein the third request message comprises a configuration for the third device.
  • the apparatus may further comprise means for determining the configuration based on at least one of the discovery response message or at least one sensing requirement for the sensing service.
  • the configuration may comprise at least one of the following: a discovery filter for the discovery model A indicated by the discovery response message; a query code and response filter for the discovery model B indicated by the discovery response message; a discovery metric associated with a sidelink quality between the third device and the terminal device; or a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service.
  • a discovery filter for the discovery model A indicated by the discovery response message a query code and response filter for the discovery model B indicated by the discovery response message
  • a discovery metric associated with a sidelink quality between the third device and the terminal device or a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service.
  • RS discovery reference signal
  • the apparatus may further comprise means for receiving, from the third device, a discovery report associated with at least one terminal device in the case that the at least one terminal device for supporting the sensing service is determined by the third device; and means for determining, based on the discovery report, the at least one terminal device for supporting the sensing service.
  • the discovery report may comprise at least one of the following: ProSe application code or restricted code for one of the at least one terminal device; ProSe discovery response code for one of the at least one terminal device; an identifier for one of the at least one terminal device; an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is indicated by the configuration; a sidelink quality between the third device and one of the at least one terminal device; or an identifier of a discovery RS associated with one of the at least one terminal device.
  • the apparatus may further comprise means for selecting one or more terminal devices from the at least one terminal device indicated in the discovery report.
  • the means for selecting the one or more terminal devices may comprise at least one of the following: means for selecting the one or more terminal devices based on determining that one or more sidelink qualities of the one or more terminal devices are better than sidelink qualities of other terminal devices among the at least one terminal device in the case that bi-static working mode is enabled; or means for selecting the one or more terminal devices base on determining that one or more discovery metrics of the one or more terminal devices are satisfied for the sensing service in the case that the one or more discovery metrics are indicated by the configuration.
  • the discovery metric may comprise at least one of the following: reference signal received power (RSRP) is above a first threshold; received signal strength indicator (RSSI) is above a second threshold; an LoS path exists between the first device and one of the at least one terminal device; the at least one terminal device locates at the location area of the sensing service; one of the at least one terminal device is an announcing UE in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery; one of the at least one terminal device is a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery; one of the at least one terminal device is a sensing receiver in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service; a type of the sensing service provided by one of the at least one terminal device matches the type of the sensing service indicated in the first information; or a time of the sensing service
  • the first device may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device;
  • the second device may be a proximity-based services (ProSe) function (PSF) ; or the third device may be a terminal device.
  • LMF location management function
  • AMF access and mobility management function
  • SeMF sensing management function
  • PSF proximity-based services
  • the third device may be a terminal device.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 400.
  • the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the apparatus.
  • an apparatus capable of performing any of the method 500 (for example, the second device 120) is provided.
  • the apparatus may comprise means for performing the respective steps of the method 500.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for receiving, from a first device, a second request message for requesting discovery authorization for a third device; and means for transmitting, to the first device, a discovery authorization message and a discovery response message associated with the third device based on determining to provide the discovery authorization.
  • the second request message may indicate that the third device requests to discover one or more terminal devices for supporting the sensing service.
  • the apparatus may further comprise means for receiving, from the first device, information of sensing assistance comprising at least one of the following: a location area of the sensing service; location information of the third device; an identifier of the third device; a sensing role of the third device in the sensing service; a discovery role of the third device in a discovery model; or a time of the sensing service.
  • the information of sensing assistance may be carried by the second request message.
  • the discovery authorization may be provided based on at least one of the following: the third device is a ProSe-enabled device registered at one or both of the first device and a ProSe discovery server; the one or more terminal devices are located at the location area of the sensing service; the one or more terminal devices are announcing user equipments (UEs) in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery; the one or more terminal devices are a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery; the one or more terminal devices are sensing receivers in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service; a type of the sensing service provided by one of the one or more terminal devices matches the type of the sensing service indicated in the second information; or a time of the sensing service provided by one of the one or more terminal devices matches the time of the sensing service
  • the discovery response message may comprise at least one of the following: a ProSe discovery filter for discovery model A; or a ProSe query code and a discovery response filter for discovery model B.
  • the first device may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device;
  • the second device may be a proximity-based services (ProSe) function (PSF) ; or the third device may be a terminal device.
  • LMF location management function
  • AMF access and mobility management function
  • SeMF sensing management function
  • PSF proximity-based services
  • the third device may be a terminal device.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 500.
  • the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the device.
  • an apparatus capable of performing any of the method 600 (for example, the third device 130) is provided.
  • the apparatus may comprise means for performing the respective steps of the method 600.
  • the means may be implemented in any suitable form.
  • the means may be implemented in a circuitry or software module.
  • the apparatus comprises means for receiving, from a first device, a third request message for requesting the third device to discover one or more terminal devices for supporting a sensing service associated with the third device; and means for transmitting, to the first device, a discovery report associated with at least one terminal device based on discovering the at least one terminal device for supporting the sensing service.
  • the apparatus may further comprise means for prior to receiving the third request message, transmitting a first request message for requesting a sensing service to the first device.
  • the apparatus may further comprise means for transmitting, to the first device, first information of sensing assistance comprising at least one of the following: a location area of the sensing service; location information of the third device; a sensing role of the third device in the sensing service; a type of the sensing service; or a time of the sensing service.
  • the third request message may comprise a configuration for the third device.
  • the configuration may be determined based on at least one of a discovery response message received from a second device or at least one sensing requirement for the sensing service.
  • the configuration may comprise at least one of the following: a discovery filter for a discovery model A indicated by the discovery response message; a query code and response filter for a discovery model B indicated by the discovery response message; a discovery metric associated with a sidelink quality between the third device and the terminal device; or a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service.
  • a discovery filter for a discovery model A indicated by the discovery response message a query code and response filter for a discovery model B indicated by the discovery response message
  • a discovery metric associated with a sidelink quality between the third device and the terminal device or a discovery reference signal (RS) configuration for discovering the one or more terminal devices for supporting the sensing service.
  • RS discovery reference signal
  • the means for discovering the at least one terminal device for supporting the sensing service may comprise at least one of the following: means for based on determining that ProSe application code or restricted code received from one of the at least one terminal device matches the discovery filter indicated by the configuration, determining the at least one terminal device for supporting the sensing service, or based on determining that ProSe discovery response code received from one of the at least one terminal device matches the discovery filter indicated by the configuration, determining the at least one terminal device for supporting the sensing service.
  • the discovery report may comprise at least one of the following: the ProSe application code or restricted code for one of the at least one terminal device; the ProSe discovery response code for one of the at least one terminal device; an identifier for one of the at least one terminal device; an indication of whether the discovery metric is satisfied for the sensing service in the case that the discovery metric is indicated by the configuration; a sidelink quality between the third device and one of the at least one terminal device; or an identifier of a discovery RS associated with one of the at least one terminal device.
  • the discovery metric may comprise at least one of the following: reference signal received power (RSRP) is above a first threshold; received signal strength indicator (RSSI) is above a second threshold; an LoS path exists between the first device and one of the at least one terminal device; the at least one terminal device locates at the location area of the sensing service; one of the at least one terminal device is an announcing UE in ProSe direct discovery in the case that the third device is configured as a monitoring terminal device in ProSe direct discovery; one of the at least one terminal device is a discoveree UE in ProSe direct discovery in the case that the third device is configured as a discoverer UE in ProSe direct discovery; one of the at least one terminal device is a sensing receiver in the sensing service in the case that the third device is configured as a sensing transmitter in the sensing service; a type of the sensing service provided by one of the at least one terminal device matches the type of the sensing service indicated in the first information; or a time of the sensing service
  • the first device may be one of a location management function (LMF) , an access and mobility management function (AMF) , a sensing management function (SeMF) , or a terminal device;
  • the second device may be a proximity-based services (ProSe) function (PSF) ; or the third device may be a terminal device.
  • LMF location management function
  • AMF access and mobility management function
  • SeMF sensing management function
  • PSF proximity-based services
  • the third device may be a terminal device.
  • the apparatus further comprises means for performing other steps in some embodiments of the method 600.
  • the means comprises at least one processor and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the performance of the device.
  • FIG. 7 is a simplified block diagram of a device 700 that is suitable for implementing embodiments of the present disclosure.
  • the device 700 may be provided to implement the communication device, for example the first device 110, the second device 120, the third device 130, or the fourth device 140 as shown in Fig. 1A.
  • the device 700 includes one or more processors 710, one or more memories 720 coupled to the processor 710, and one or more communication modules 740 coupled to the processor 710.
  • the communication modules 740 is for bidirectional communications.
  • the communication modules 740 has at least one antenna to facilitate communication.
  • the communication interface may represent any interface that is necessary for communication with other network elements.
  • the processor 710 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 700 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • the memory 720 may include one or more non-volatile memories and one or more volatile memories.
  • the non-volatile memories include, but are not limited to, a read only memory (ROM) 724, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , and other magnetic storage and/or optical storage.
  • the volatile memories include, but are not limited to, a random access memory (RAM) 722 and other volatile memories that will not last in the power-down duration.
  • a computer program 730 includes computer executable instructions that are executed by the associated processor 710.
  • the program 730 may be stored in the ROM 724.
  • the processor 710 may perform any suitable actions and processing by loading the program 730 into the RAM 722.
  • the embodiments of the present disclosure may be implemented by means of the program 730 so that the device 700 may perform any process of the disclosure as discussed with reference to Figs. 2 to 6.
  • the embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
  • the program 730 may be tangibly contained in a computer readable medium which may be included in the device 700 (such as in the memory 720) or other storage devices that are accessible by the device 700.
  • the device 700 may load the program 730 from the computer readable medium to the RAM 722 for execution.
  • the computer readable medium may include any types of tangible non-volatile storage, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like.
  • Fig. 8 shows an example of the computer readable medium 800 in form of CD or DVD.
  • the computer readable medium has the program 730 stored thereon.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the method 300, 400, and 500 as described above with reference to Figs. 3-5.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the computer program codes or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above.
  • Examples of the carrier include a signal, computer readable medium, and the like.
  • the computer readable medium may be a computer readable signal medium or a computer readable storage medium.
  • a computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • non-transitory is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .

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Abstract

Des modes de réalisation de la présente divulgation concernent la découverte de liaison latérale efficace pour un service de détection. Selon un aspect, un premier dispositif obtient un premier message de demande pour demander un service de détection associé à un troisième dispositif. Ensuite, le premier dispositif transmet, à un second dispositif, un second message de demande pour demander une autorisation de découverte pour le troisième dispositif. Dans le cas où l'autorisation de découverte est fournie par le deuxième dispositif, le premier dispositif reçoit, en provenance du deuxième dispositif, un message d'autorisation de découverte et un message de réponse de découverte associés au troisième dispositif. De cette manière, la latence de détection est améliorée et le surdébit de signal supplémentaire est réduit.
PCT/CN2023/120831 2023-09-22 2023-09-22 Découverte de liaison latérale efficace pour service de détection Pending WO2025060091A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110786041A (zh) * 2017-07-03 2020-02-11 株式会社Ntt都科摩 用户装置以及发送方法
US20210136570A1 (en) * 2019-11-05 2021-05-06 Qualcomm Incorporated Proximity service authorization and provisioning
CN114697945A (zh) * 2022-04-02 2022-07-01 中国电信股份有限公司 发现响应消息的生成方法及装置、发现消息的处理方法
WO2023278245A1 (fr) * 2021-06-29 2023-01-05 Qualcomm Incorporated Découverte de surfaces reconfigurables
US20230092224A1 (en) * 2020-05-22 2023-03-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Cooperative Sensing for Sidelink Communication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110786041A (zh) * 2017-07-03 2020-02-11 株式会社Ntt都科摩 用户装置以及发送方法
US20210136570A1 (en) * 2019-11-05 2021-05-06 Qualcomm Incorporated Proximity service authorization and provisioning
US20230092224A1 (en) * 2020-05-22 2023-03-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Cooperative Sensing for Sidelink Communication
WO2023278245A1 (fr) * 2021-06-29 2023-01-05 Qualcomm Incorporated Découverte de surfaces reconfigurables
CN114697945A (zh) * 2022-04-02 2022-07-01 中国电信股份有限公司 发现响应消息的生成方法及装置、发现消息的处理方法

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