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WO2021004606A1 - Appareil, procédé et programme d'ordinateur destinés à la vérification d'accès avec un réseau cellulaire - Google Patents

Appareil, procédé et programme d'ordinateur destinés à la vérification d'accès avec un réseau cellulaire Download PDF

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Publication number
WO2021004606A1
WO2021004606A1 PCT/EP2019/068115 EP2019068115W WO2021004606A1 WO 2021004606 A1 WO2021004606 A1 WO 2021004606A1 EP 2019068115 W EP2019068115 W EP 2019068115W WO 2021004606 A1 WO2021004606 A1 WO 2021004606A1
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WO
WIPO (PCT)
Prior art keywords
access information
access
remote terminal
network
processor
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.)
Ceased
Application number
PCT/EP2019/068115
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English (en)
Inventor
Saurabh Khare
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 Technologies Oy
Original Assignee
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 Technologies Oy filed Critical Nokia Technologies Oy
Priority to PCT/EP2019/068115 priority Critical patent/WO2021004606A1/fr
Publication of WO2021004606A1 publication Critical patent/WO2021004606A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

Definitions

  • the present disclosure relates to an apparatus, a method, and a computer program for performing access check with a cellular network.
  • a communication system can be seen as a facility that enables communication sessions between two or more entities such as user terminals, base stations/access points and/or other nodes by providing carriers between the various entities involved in the communications path.
  • a communication system can be provided for example by means of a communication network and one or more compatible communication devices.
  • the communication sessions may comprise, for example, communication of data for carrying communications such as voice, electronic mail (email), text message, multimedia and/or content data and so on.
  • Non-limiting examples of services provided comprise two-way or multi-way calls, data communication or multimedia services and access to a data network system, such as the Internet.
  • a wireless communication system at least a part of a communication session between at least two stations occurs over a wireless link.
  • a user can access the communication system by means of an appropriate communication device or terminal.
  • a communication device of a user is often referred to as user equipment (UE) or user device.
  • UE user equipment
  • a communication device is provided with an appropriate signal receiving and transmitting apparatus for enabling communications, for example enabling access to a communication network or communications directly with other users.
  • the communication device may access a carrier provided by a station or access point, and transmit and/or receive communications on the carrier.
  • the communication system and associated devices typically operate in accordance with a required standard or specification which sets out what the various entities associated with the system are permitted to do and how that should be achieved. Communication protocols and/or parameters which shall be used for the connection are also typically defined.
  • 2G system 2GS using global system for mobile communications (GSM) radio access technology
  • 3G system 3GS
  • UMTS universal mobile telecommunications system
  • 4G system (4GS) using long-term evolution- advanced (LTE-A) radio access technology
  • 5G system (5GS) using new radio (NR) radio access technology.
  • an apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: receive a message from a remote terminal to be relayed to a network; select access information considering access information assigned to the remote terminal; and use the selected access information to perform access check with the network.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select the access information without considering the access information assigned to a relay terminal.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select the access information assigned to the remote terminal
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select the access information considering access information assigned to a relay terminal.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select the access information assigned to the relay terminal if the access information assigned to the relay terminal indicates a higher priority than the access information assigned to the remote terminal.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select the access information assigned to the remote terminal if the access information assigned to the remote terminal indicates a higher priority than the access information assigned to the relay terminal.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select access information considering access information assigned to the remote terminal if a relay node is or acts a public safety access node.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: select default access information if the relay node is or acts as a public safety access node.
  • the default access information may indicate a highest priority.
  • Access information may comprise at least one of an access identity and an access category. Access information may comprise only an access category.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: receive an indication from the network indicating that the access information is to be selected considering access information assigned to a remote terminal.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: establish a connection with the network to relay the message from the remote terminal based on the access check.
  • the at least one memory and the computer program code may be configured to, with the at least one processor, cause the apparatus at least to: establish a separate connection with the network to send a message from the relay terminal.
  • the network may be a radio access network, such as evolved universal terrestrial radio access network or a fifth generation radio access network.
  • an apparatus comprising circuitry configured to: receive a message from a remote terminal to be relayed to a network; select access information considering access information assigned to the remote terminal; and use the selected access information to perform access check with the network.
  • the apparatus may comprise circuitry configured to: select the access information without considering the access information assigned to a relay terminal.
  • the apparatus may comprise circuitry configured to: select the access information assigned to the remote terminal.
  • the apparatus may comprise circuitry configured to: select the access information considering access information assigned to a relay terminal.
  • the apparatus may comprise circuitry configured to: select the access information assigned to the relay terminal if the access information assigned to the relay terminal indicates a higher priority than the access information assigned to the remote terminal.
  • the apparatus may comprise circuitry configured to: select the access information assigned to the remote terminal if the access information assigned to the remote terminal indicates a higher priority than the access information assigned to the relay terminal.
  • the apparatus may comprise circuitry configured to: select access information considering access information assigned to the remote terminal if a relay node is or acts a public safety access node.
  • the apparatus may comprise circuitry configured to: select default access information if the relay node is or acts as a public safety access node.
  • the default access information may indicate a highest priority.
  • Access information may comprise at least one of an access identity and an access category.
  • Access information may comprise only an access category.
  • the apparatus may comprise circuitry configured to: receive an indication from the network indicating that the access information is to be selected considering access information assigned to a remote terminal.
  • the apparatus may comprise circuitry configured to: establish a connection with the network to relay the message from the remote terminal based on the access check.
  • the apparatus may comprise circuitry configured to: establish a separate connection with the network to send a message from the relay terminal.
  • the network may be a radio access network, such as evolved universal terrestrial radio access network or a fifth generation radio access network.
  • an apparatus comprising means for: receiving a message from a remote terminal to be relayed to a network; select access information considering access information assigned to the remote terminal; and using the selected access information to perform access check with the network.
  • the apparatus may comprise means for: selecting the access information without considering the access information assigned to a relay terminal.
  • the apparatus may comprise means for: selecting the access information assigned to the remote terminal
  • the apparatus may comprise means for: selecting the access information considering access information assigned to a relay terminal.
  • the apparatus may comprise means for: selecting the access information assigned to the relay terminal if the access information assigned to the relay terminal indicates a higher priority than the access information assigned to the remote terminal.
  • the apparatus may comprise means for: selecting the access information assigned to the remote terminal if the access information assigned to the remote terminal indicates a higher priority than the access information assigned to the relay terminal.
  • the apparatus may comprise means for: selecting access information considering access information assigned to the remote terminal if a relay node is or acts a public safety access node.
  • the apparatus may comprise means for: selecting default access information if the relay node is or acts as a public safety access node.
  • the default access information may indicate a highest priority.
  • Access information may comprise at least one of an access identity and an access category.
  • Access information may comprise only an access category.
  • the apparatus may comprise means for: receiving an indication from the network indicating that the access information is to be selected considering access information assigned to a remote terminal.
  • the apparatus may comprise means for: establishing a connection with the network to relay the message from the remote terminal based on the access check.
  • the apparatus may comprise means for: establishing a separate connection with the network to send a message from the relay terminal.
  • the network may be a radio access network, such as evolved universal terrestrial radio access network or a fifth generation radio access network.
  • a method comprising: receiving a message from a remote terminal to be relayed to a network; select access information considering access information assigned to the remote terminal; and using the selected access information to perform access check with the network.
  • the method may comprise: selecting the access information without considering the access information assigned to a relay terminal.
  • the method may comprise: selecting the access information assigned to the remote terminal
  • the method may comprise: selecting the access information considering access information assigned to a relay terminal.
  • the method may comprise: selecting the access information assigned to the relay terminal if the access information assigned to the relay terminal indicates a higher priority than the access information assigned to the remote terminal.
  • the method may comprise: selecting the access information assigned to the remote terminal if the access information assigned to the remote terminal indicates a higher priority than the access information assigned to the relay terminal.
  • the method may comprise: selecting access information considering access information assigned to the remote terminal if a relay node is or acts a public safety access node.
  • the method may comprise: selecting default access information if the relay node is or acts as a public safety access node.
  • the default access information may indicate a highest priority.
  • Access information may comprise at least one of an access identity and an access category.
  • Access information may comprise only an access category.
  • the method may comprise: receiving an indication from the network indicating that the access information is to be selected considering access information assigned to a remote terminal.
  • the method may comprise: establishing a connection with the network to relay the message from the remote terminal based on the access check.
  • the method may comprise: establishing a separate connection with the network to send a message from the relay terminal.
  • the network may be a radio access network, such as evolved universal terrestrial radio access network or a fifth generation radio access network.
  • a computer program comprising computer executable code which when run on at least one processor is configured to: receive a message from a remote terminal to be relayed to a network; select access information considering access information assigned to the remote terminal; and use the selected access information to perform access check with the network.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select the access information without considering the access information assigned to a relay terminal.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select the access information assigned to the remote terminal
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select the access information considering access information assigned to a relay terminal.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select the access information assigned to the relay terminal if the access information assigned to the relay terminal indicates a higher priority than the access information assigned to the remote terminal.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select the access information assigned to the remote terminal if the access information assigned to the remote terminal indicates a higher priority than the access information assigned to the relay terminal.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select access information considering access information assigned to the remote terminal if a relay node is or acts a public safety access node.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: select default access information if the relay node is or acts as a public safety access node.
  • the default access information may indicate a highest priority.
  • Access information may comprise at least one of an access identity and an access category.
  • Access information may comprise only an access category.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: receive an indication from the network indicating that the access information is to be selected considering access information assigned to a remote terminal.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: establish a connection with the network to relay the message from the remote terminal based on the access check.
  • the computer program may comprise computer executable code which when run on at least one processor is configured to: establish a separate connection with the network to send a message from the relay terminal.
  • the network may be a radio access network, such as evolved universal terrestrial radio access network or a fifth generation radio access network.
  • an apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: send an indication to a relay node indicating whether the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to the remote terminal.
  • the indication may be included in an information element.
  • the information element may take: a TRUE value if the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected without considering access information assigned to a remote terminal; and a FALSE value the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to a remote terminal.
  • an apparatus comprising circuitry configured to: send an indication to a relay node indicating whether the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to the remote terminal.
  • the indication may be included in an information element.
  • the information element may take: a TRUE value if the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected without considering access information assigned to a remote terminal; and a FALSE value the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to a remote terminal.
  • an apparatus comprising means for: sending an indication to a relay node indicating whether the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to the remote terminal.
  • the indication may be included in an information element.
  • the information element may take: a TRUE value if the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected without considering access information assigned to a remote terminal; and a FALSE value the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to a remote terminal.
  • a method comprising: sending an indication to a relay node indicating whether the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to the remote terminal.
  • the indication may be included in an information element.
  • the information element may take: a TRUE value if the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected without considering access information assigned to a remote terminal; and a FALSE value the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to a remote terminal.
  • a computer program comprising computer executable code which when run on at least one processor is configured to: send an indication to a relay node indicating whether the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to the remote terminal.
  • the indication may be included in an information element.
  • the information element may take: a TRUE value if the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected without considering access information assigned to a remote terminal; and a FALSE value the access information to be used to perform access check prior to relaying a message from a remote terminal is to be selected considering access information assigned to a remote terminal.
  • a computer readable medium comprising program instructions stored thereon for performing at least one of the above methods.
  • a non-transitory computer readable medium comprising program instructions stored thereon for performing at least one of the above methods.
  • non-volatile tangible memory medium comprising program instructions stored thereon for performing at least one of the above methods.
  • AUSF Authentication Server Function
  • AMF Access Management Function
  • CU Centralized Unit
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • gNB gNodeB
  • GSM Global System for Mobile communication
  • IP Internet Protocol
  • NEF Network Exposure Function
  • PDA Personal Digital Assistant
  • RAM Random Access Memory
  • SMF Session Management Function
  • UE User Equipment
  • USB Universal Serial Bus
  • 3GPP 3 rd Generation Partnership Project 4G: 4 th Generation
  • 5GC 5G Core network
  • 5GRAN 5G Radio Access Network
  • FIG 1 shows a schematic representation of a 5G system (5GS);
  • Figure 2 shows a schematic representation of a control apparatus
  • Figure 3 shows a schematic representation of a terminal
  • Figure 4 shows a schematic representation of a relay terminal in the coverage area of a cellular network and a remote terminal outside the coverage area of the cellular network, wherein the relay terminal may be used to relay a message from the remote terminal to the cellular network;
  • Figure 5 shows a schematic representation of a signalling diagram of a method for performing access check with a cellular network
  • Figure 6 shows a schematic representation of a block diagram of a method for performing access check with a cellular network performed by a relay terminal
  • Figure 7 shows a schematic representation of a block diagram of a method for performing access check with a cellular network performed by the cellular network
  • Figure 8 shows a schematic representation of a non-volatile memory medium storing instructions which when executed by a processor allow a processor to perform one or more of the steps of the above methods.
  • FIG. 1 shows a schematic representation of a 5G system (5GS).
  • the 5GS may comprises a terminal, a 5G radio access network (5G RAN), a 5G core network (5GC), one or more application function (AF) and one or more data networks (DN).
  • 5G RAN 5G radio access network
  • 5GC 5G core network
  • AF application function
  • DN data networks
  • the 5G RAN may comprise one or more gNodeB (gNB) distributed unit functions connected to one or more gNodeB (gNB) centralized unit functions.
  • gNB gNodeB
  • gNB gNodeB
  • the 5GC may comprise an access management function (AMF), a session management function (SMF), an authentication server function (AUSF), a user data management (UDM), a user plane function (UPF) and/or a network exposure function (NEF).
  • AMF access management function
  • SMF session management function
  • AUSF authentication server function
  • UDM user data management
  • UPF user plane function
  • NEF network exposure function
  • FIG. 2 illustrates an example of a control apparatus 200 for controlling a function of the 5G RAN or 5GC as illustrated on Figure 1.
  • the control apparatus may comprise at least one random access memory (RAM) 211 a, at least on read only memory (ROM) 211 b, at least one processor 212, 213 and an input/output interface 214.
  • the at least one processor 212, 213 may be coupled to the RAM 211 a and the ROM 211 b.
  • the at least one processor 212, 213 may be configured to execute an appropriate software code 215.
  • the software code 215 may for example allow to perform one or more steps to perform one or more of the present aspects.
  • the software code 215 may be stored in the ROM 211 b.
  • the control apparatus 200 may be interconnected with another control apparatus 200 controlling another function the 5G RAN or 5GC.
  • each function of the 5G RAN or 5GC comprises a control apparatus 200.
  • two or more functions of the 5G RAN or 5GC may share a control apparatus.
  • FIG 3 illustrates an example of a terminal 300, such as the terminal illustrated on Figure 1 .
  • the terminal 300 may be provided by any device capable of sending and receiving radio signals.
  • Non-limiting examples comprise a user equipment, a mobile station (MS) or mobile device such as a mobile phone or what is known as a’smart phone’, a computer provided with a wireless interface card or other wireless interface facility (e.g., USB dongle), a personal data assistant (PDA) or a tablet provided with wireless communication capabilities, a machine-type communications (MTC) device, an Internet of things (loT) type communication device or any combinations of these or the like.
  • the terminal 300 may provide, for example, communication of data for carrying communications.
  • the communications may be one or more of voice, electronic mail (email), text message, multimedia, data, machine data and so on.
  • the terminal 300 may receive signals over an air or radio interface 307 via appropriate apparatus for receiving and may transmit signals via appropriate apparatus for transmitting radio signals.
  • transceiver apparatus is designated schematically by block 306.
  • the transceiver apparatus 306 may be provided for example by means of a radio part and associated antenna arrangement.
  • the antenna arrangement may be arranged internally or externally to the mobile device.
  • the terminal 300 may be provided with at least one processor 301 , at least one memory ROM 302a, at least one RAM 302b and other possible components 303 for use in software and hardware aided execution of tasks it is designed to perform, including control of access to and communications with access systems and other communication devices.
  • the at least one processor 301 is coupled to the RAM 21 1 a and the ROM 21 1 b.
  • the at least one processor 301 may be configured to execute an appropriate software code 308.
  • the software code 308 may for example allow to perform one or more of the present aspects.
  • the software code 308 may be stored in the ROM 21 1 b.
  • the processor, storage and other relevant control apparatus can be provided on an appropriate circuit board and/or in chipsets. This feature is denoted by reference 304.
  • the device may optionally have a user interface such as key pad 305, touch sensitive screen or pad, combinations thereof or the like.
  • a display, a speaker and a microphone may be provided depending on the type of the device.
  • One or more of the following aspects relate to adding network access priority for device to device communication.
  • Some 3GPP protocol e.g. radio resource control
  • device to device communication protocol e.g. ProSe, V2X
  • Device to device communication is growing fast and will continue to grow in the next couple of years. As per 3GPP, device to device communication via Sidelink is possible. It will be understood that in this disclosure“Sidelink” is given as a non-limiting example of device to device communication mechanism. One or more aspects of this disclosure may apply to any existing or future device to device communication mechanisms.
  • a UE acts as relay terminal and another UE acts as a remote terminal wherein the relay terminal allows the remote terminal to send a message to a cellular network via the relay terminal.
  • the expression “cellular network” encompasses any generation of cellular network, including any generation of core network and RAN.
  • the RAN may, for example, be any existing generation RAN (e.g. E-UTRAN or 5G-RAN) or future generation RAN (e.g. 6G-RAN). It may be mobility messages, session related messages (e.g. packet data unit session message) or other types of messages.
  • the remote terminal may also be called UE-to-Network Relay and may be defined in 3GPP 23303 and 3GPP 36300 section 23.10.4.
  • Figure 4 shows a schematic representation of a relay terminal (UE-B) in the coverage area of a cellular network and in communication range of a remote terminal (UE-A).
  • the remote terminal (UE-A) may be outside the coverage area of the cellular network.
  • the relay terminal (UE-B) may be used to relay a message from the remote terminal to the cellular network.
  • Location updates or paging responses from the remote terminal (UE-A) may be relayed to the base station via the relay terminal (UE-B). This concept is for example discussed in EP2901778A1.
  • a use case of the relay capabilities may be when the remote terminal (UE-A) is outside the coverage area of the cellular network.
  • the remote terminal (UE-A) is in a location where direct signals from the cellular network are not available.
  • the remote terminal (UE-A) may connect to the relay terminal (UEB) via Sidelink and the relay terminal (UE-B) may allow the remote terminal (UE-A) to access certain packet data units sessions.
  • multiple terminals may together form a cluster communicating via device to device communication.
  • a cluster head may relay the location updates and paging messages on behalf of other terminals in the cluster.
  • a similar concept may also be used in vehicle to everything (V2X) communications.
  • V2X vehicle to everything
  • 3GPP releases 16 and 17 also studies multiple terminal-to-terminal relay concept where this behaviour is extended for other purposes.
  • a limitation of the above relay concept may be that when the remote terminal (UE- A) wants to send a priority communication to the cellular network via the relay terminal (UE-B), then access information (access identity and/or access category) defined for packet data unit session at the UE-A may somewhere be lost or not respected by the relay terminal (UE-B) while communicating with the cellular network.
  • access information access identity and/or access category
  • the remote terminal (UE-A) may be configured with an access identity and an access category based on remote terminal (UE-A) subscription and/or other parameters.
  • the relay terminal (UE-B) may be configured with an access identity and an access category based on relay terminal (UE-B) subscription and/ or other parameters.
  • the remote terminal (UE-A) may connect to the relay terminal (UE-B) and may send a message (mobility or session) to the relay terminal (UE-B), for example over a PC-5 connection.
  • the message may relayed to the cellular network.
  • the message may be a high priority message.
  • an access check with the cellular network may be performed by the relay terminal (UE-B). It may be referred to 3GPP TS 22261 (section 6.22) for more details.
  • the relay terminal (UE-B) When the relay terminal (UE-B) receives a request on behalf of the remote terminal (UE-A), it may simply relay the request to the cellular network. However, as UE-B starts accessing the cellular network, it may apply its own logic of access check configured in its own configuration. That is, the relay terminal (UE-B) may use access information (access identities and/ or access categories) assigned to the relay terminal (UE-B) rather than access information (access identities and/ or access categories) assigned to the remote terminal (UE-A) to perform access check with the cellular network.
  • access information access identities and/ or access categories assigned to the relay terminal (UE-B)
  • access information access identities and/ or access categories assigned to the remote terminal (UE-A)
  • a message from the remote terminal (UE-A) may simply be Internet protocol (IP) traffic, it will be mapped to different access information (access identities and/ or access categories) and access control may be rejected by the relay terminal (UE-B) or the cellular network irrespective whether it is a priority communication from the remote terminal (UE-A).
  • IP Internet protocol
  • One or more of the following aspects may solve this access priority problem.
  • One or more of the following aspects relate to registering a potential relay terminal (UE-B) in the cellular network as a relay terminal (UE-To-Network Relay node). The registering may be based on operator policy.
  • One or more of the following aspects relate to providing, by a remote terminal (UE- A), access information (access identities and/ or access categories) assigned to a PDU session and/ or message to a relay terminal (UE-B) via Sidelink communication, when the remote terminal (UE-A) wants to access the cellular network via the relay terminal (UE-B).
  • UE- A remote terminal
  • UE-B relay terminal
  • One or more of the following aspects relate to applying access check, by the relay terminal (UE-B), based on access information (access identities and/ or access categories) assigned to the relay terminal (UE-B) and/or access information (access identities and/ or access categories) assigned to the remote terminal (UE-A).
  • the relay terminal (UE-B) may discard access information (access identities and/ or access- categories) assigned to the remote terminal (UE-A) received over Sidelink and may use access information (access identities and/ or access-categories) assigned to the relay terminal (UE-B) to perform access check with the cellular network.
  • the relay terminal may use access information (access identities and/ or access-categories) assigned to the remote terminal (UE-A) received over Sidelink to perform access check with the cellular network.
  • Figure 5 shows a schematic representation of a signalling diagram of a method for performing access check with a cellular network.
  • a terminal may be register with a cellular network as a remote terminal (as opposed to a relay terminal).
  • the cellular network may accept the registration and may assign access information to the remote terminal (UE-A).
  • the access information may comprise one or more access identities and/or one or more access categories.
  • the cellular network may send the access information assigned to the remote terminal (UE-A).
  • a terminal may register with the cellular network as a relay terminal (as opposed to a remote terminal).
  • the cellular network may accept the registration and may assign access information to the relay terminal (UE-B).
  • the access information may comprise one or more access identifies and/or one or more access categories.
  • the cellular network may send the access information assigned to the relay terminal (UE-B).
  • the cellular network may send the indicator assigned to the relay terminal (UE-B) to the relay terminal (UE-B), for example in an information element.
  • the remote terminal (UE-A) may discover the relay terminal (UE-B) and may establish a connection, for example a PC_5 connection. For discovery and connection establishment existing standards may be followed.
  • the remote terminal (UE-A) may send a message to the relay terminal (UE-B) via the connection established in step 508.
  • the message may be a PDU session message, a mobility message or another type of message.
  • the remote terminal (UE-A) may send access information (access identities and/ or access identities) to the message.
  • the access information (access identities and/ or access identities) may be a subset of the access information (Access-Identities and/ or Access-Identities) assigned to the remote (UE-A) and may be specifically applicable to the message.
  • the relay terminal (UE-B) discards the access information (access identities and/ or access identities) assigned to the remote terminal (UE-A) received in step 510 and may select the access information (access identities and/ or Access- Identities) assigned to the relay terminal (UE-B).
  • the relay terminal (UE-B) may use the selected access information (access identities and/ or access identities) assigned to the relay terminal (UE-B) to perform access check with the cellular network.
  • the relay terminal (UE-B) may select the access information (access identities and/ or access identities) assigned to the remote terminal (UE-A) received in step 510 to perform access check with the cellular network.
  • the relay terminal (UE-B) may use the selected access information (access identities and/ or access identities) assigned to the remote terminal (UE-A) to perform access check with the cellular network.
  • the cellular network may also provide access information (access identities and/ or access categories) for the remote terminal (UE-A) on Sidelink communication. In this way, Sidelink communication may also be controlled via unified access control framework. Additionally or alternatively, the cellular network may also provide separate access information (access identities and/ or access categories) for Sidelink communications for the relay terminal (UE-B). Such separate access information may be used by the relay terminal (UE-B to performed access checks with the cellular network.
  • Figure 6 shows a schematic representation of a block diagram of a method for performing access check with a cellular network.
  • the method may be performed by a relay terminal (UE-B).
  • the relay terminal (UE-B) may receive a message from a remote terminal (UE-A) to be relayed to a cellular network.
  • UE-B may receive a message from a remote terminal (UE-A) to be relayed to a cellular network.
  • the relay terminal may receive access information (access identities and/ or access identities) assigned to the remoter terminal (UE-A) applicable to the message.
  • the access information may comprise both access identities and / or access identities.
  • the access information may only access identities.
  • the access information may only comprise access categories.
  • the relay terminal (UE-B) may determine whether the relay terminal (UE-B) is or acts as a public safety node.
  • the relay terminal (UE-B) may be configured to be or to act as a public safety node by the cellular network , by a user of the relay terminal (UE-B) or other.
  • the method goes to step 606.
  • the method goes to step 612.
  • the indicator indicates whether access information to be used to perform access check prior to relaying the message from the remote terminal (UE-A) is to be selected considering the access information assigned to the remote terminal (UE-A).
  • the relay terminal (UE-B) may select access information without considering the access information assigned to the remote node (UE-A).
  • the relay terminal (UE-B) may select access information considering the access information assigned to the relay node (UE-B).
  • the relay terminal (UE-B) may select the access information assigned to the relay (UE-B).
  • the relay terminal (UE-B) may select access information considering the access information assigned to the remote terminal (UE-A).
  • the relay terminal (UE-B) may select access information with or without considering the access information assigned to the relay terminal (UE-B).
  • the relay terminal (UE-B) may select the access information assigned to the remote terminal node (UE-A) regardless the access information assigned to the relay terminal (UE-B) as in step 512b in the method of Figure 5.
  • the relay terminal (UE-B) may select the access information assigned to the remote terminal node (UE-A) or the access information assigned to the relay terminal (UE-B), whichever indicates the highest priority. That is, the relay terminal (UE-B) may select the access information assigned to the remote terminal node (UE-A) if the access information assigned to the remote terminal (UE-A) indicates a higher priority than the access information assigned to the relay terminal (UE-B). By contrast, the relay terminal (UE-B) may select the access information assigned to the relay terminal (UE-B) if the access information assigned to the relay terminal (UE-B) indicates a higher priority than the access information assigned to the remote terminal (UE-A). In step 612, the relay terminal (UE-B) may select access information without considering the access information assigned to the remote node (UE-A). The relay terminal (UE-B) may select access information without considering the access information assigned to the relay node (UE-B) either.
  • the relay terminal (UE-B) may select neither the access information assigned to the remote terminal node (UE-A) nor the access information assigned to the relay terminal (UE-B).
  • the relay terminal (UE-B) may select default access information.
  • the default access information may indicate a highest priority or at least one of the highest priority (i.e. one of the top N priorities where N is predetermined).
  • the relay terminal may use the selected access information to perform access check with the cellular network.
  • the relay terminal (UE-B) may establish a connection with the cellular network to relay the message from the remote terminal (UE-A) based on the access check. More specifically, the relay terminal (UE-B) may establish a connection with the cellular network if the access check authorizes the connection. Otherwise, the relay terminal (UE-B) may not establish a connection with the cellular network).
  • the relay terminal (UE-B) may establish a separate connection with the cellular network and send a message originating from the relay terminal (UE-B) via the same established connection.
  • Figure 7 shows a schematic representation of a method for performing access check with a cellular network.
  • the method may be performed by the cellular network, in particular by a base station (e.g. eNB or gNB) of the cellular network.
  • the cellular network may receive a request from a terminal (UE-B) to register as a relay terminal.
  • UE-B terminal
  • the relay terminal may select access information as and may perform access check. Based on the access check, the cellular network may determine to authorize or bar access to the cellular network by the relay terminal (UE-B).
  • the cellular network may authorize access to the cellular network by the relay terminal (UE-B).
  • the cellular network may establish a connection with the relay terminal (UE-B).
  • the cellular network may receive the message originating from the remote terminal (UE-A) relayed by the relay terminal (UE-B) via the connection.
  • the cellular network may also receive a message originating from the relay terminal (UE-
  • the cellular network may establish a separate connection with the relay terminal (UE-B) and may receive the message originating from the relay terminal (UE-B) via the separate connection.
  • the cellular network may bar access to the cellular network by the relay terminal (UE-B). The cellular network may abstain from establishing a connection with the relay terminal (UE-B).
  • the cellular network may fail to receive the message from the remote terminal (UE-A).
  • Figure 8 shows a schematic representation of non-volatile memory media 800a (e.g. computer disc (CD) or digital versatile disc (DVD) and 800b (e.g. universal serial bus (USB) memory stick) storing instructions and/or parameters 802 which when executed by a processor allow the processor to perform one or more of the steps of the above methods.
  • 800a e.g. computer disc (CD) or digital versatile disc (DVD)
  • 800b e.g. universal serial bus (USB) memory stick
  • instructions and/or parameters 802 which when executed by a processor allow the processor to perform one or more of the steps of the above methods.
  • some embodiments 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, although embodiments are not limited thereto.
  • firmware or software which may be executed by a controller, microprocessor or other computing device, although embodiments are not limited thereto. While various embodiments may be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods 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 embodiments may be implemented by computer software stored in a memory and executable by at least one data processor of the involved entities or by hardware, or by a combination of software and hardware. Further in this regard it should be noted that any of the above procedures may represent program steps, or interconnected logic circuits, blocks and functions, or a combination of program steps and logic circuits, blocks and functions.
  • the software may be stored on such physical media as memory chips, or memory blocks implemented within the processor, magnetic media such as hard disk or floppy disks, and optical media such as for example DVD and the data variants thereof, CD.
  • the memory may be of any type suitable to the local technical environment and may be implemented using any suitable data storage technology, such as semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory.
  • the data processors may be of any type suitable to the local technical environment, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs), application specific integrated circuits (ASIC), gate level circuits and processors based on multi-core processor architecture, as non-limiting examples.
  • circuitry may be configured to perform one or more of the functions and/or method steps previously described. That circuitry may be provided in the base station and/or in the communications device.
  • circuitry may refer to one or more or all of the following:
  • circuit(s) and or processor(s) such as a microprocessor(s) or a portion of a microprocessor(s), that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
  • software e.g., firmware
  • 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 integrated device.

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

Abstract

L'invention concerne un appareil comprenant : au moins un processeur ; et au moins une mémoire comprenant un code de programme d'ordinateur ; l'une ou les mémoires et le code de programme d'ordinateur étant configurés pour, avec l'un ou les processeurs, amener l'appareil au moins à : recevoir (600) un message provenant d'un téléterminal devant être relayé vers un réseau ; sélectionner (610) des informations d'accès en tenant compte des informations d'accès attribuées au téléterminal ; et utiliser (614) les informations d'accès sélectionnées pour effectuer une vérification d'accès avec le réseau.
PCT/EP2019/068115 2019-07-05 2019-07-05 Appareil, procédé et programme d'ordinateur destinés à la vérification d'accès avec un réseau cellulaire Ceased WO2021004606A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/068115 WO2021004606A1 (fr) 2019-07-05 2019-07-05 Appareil, procédé et programme d'ordinateur destinés à la vérification d'accès avec un réseau cellulaire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/068115 WO2021004606A1 (fr) 2019-07-05 2019-07-05 Appareil, procédé et programme d'ordinateur destinés à la vérification d'accès avec un réseau cellulaire

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WO2021004606A1 true WO2021004606A1 (fr) 2021-01-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2901778A1 (fr) 2012-09-28 2015-08-05 Nokia Solutions and Networks Oy Enregistrement de position pour un équipement d'utilisateur à capacité de communication de dispositif à dispositif (d2d) soumis à une gestion de mobilité en mode inactif
EP3038407A1 (fr) * 2013-09-12 2016-06-29 Huawei Technologies Co., Ltd. Procédé d'accès à un réseau, serveur de communications par champ proche, terminal de relais, terminal
WO2016155298A1 (fr) * 2015-04-02 2016-10-06 中兴通讯股份有限公司 Procédé et appareil de contrôle d'accès d'un ue de relais
US20190028962A1 (en) * 2016-02-26 2019-01-24 Lg Electronics Inc. Method and user equipment for requesting connection to network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2901778A1 (fr) 2012-09-28 2015-08-05 Nokia Solutions and Networks Oy Enregistrement de position pour un équipement d'utilisateur à capacité de communication de dispositif à dispositif (d2d) soumis à une gestion de mobilité en mode inactif
EP3038407A1 (fr) * 2013-09-12 2016-06-29 Huawei Technologies Co., Ltd. Procédé d'accès à un réseau, serveur de communications par champ proche, terminal de relais, terminal
WO2016155298A1 (fr) * 2015-04-02 2016-10-06 中兴通讯股份有限公司 Procédé et appareil de contrôle d'accès d'un ue de relais
US20190028962A1 (en) * 2016-02-26 2019-01-24 Lg Electronics Inc. Method and user equipment for requesting connection to network

Non-Patent Citations (1)

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Title
HUAWEI ET AL: "The ProSe UE-to-network relay with the network authorization", vol. SA WG2, no. Xiamen, China; 20130923 - 20130927, 27 September 2013 (2013-09-27), XP050727137, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_sa/WG2_Arch/TSGS2_99_Xiamen/Docs/> [retrieved on 20130927] *

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