WO2014133356A1 - Procédé de communication de groupe et dispositif destinés à fournir un service de proximité - Google Patents

Procédé de communication de groupe et dispositif destinés à fournir un service de proximité Download PDF

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Publication number
WO2014133356A1
WO2014133356A1 PCT/KR2014/001675 KR2014001675W WO2014133356A1 WO 2014133356 A1 WO2014133356 A1 WO 2014133356A1 KR 2014001675 W KR2014001675 W KR 2014001675W WO 2014133356 A1 WO2014133356 A1 WO 2014133356A1
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WIPO (PCT)
Prior art keywords
relay
group communication
group
service
network
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PCT/KR2014/001675
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English (en)
Korean (ko)
Inventor
김래영
김재현
김태현
김현숙
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US14/767,872 priority Critical patent/US10484838B2/en
Priority to KR1020157021030A priority patent/KR20150120348A/ko
Priority to JP2015560104A priority patent/JP6142006B2/ja
Priority to CN201480011297.XA priority patent/CN105009610B/zh
Publication of WO2014133356A1 publication Critical patent/WO2014133356A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a group communication method and apparatus for providing a proximity service.
  • Proximity Service means a method of supporting communication between devices located in a physically close proximity. Specifically, ProSe aims to support the operation of discovering applications running on devices that are in close proximity to each other and ultimately exchanging applications—related data. For example, ProSe may be applied to applications such as social network services (SNS), commerce, and games.
  • SNS social network services
  • ProSe may be called Device-to-Device (D2D) communication. That is, a direct link is established between a plurality of devices (eg, user equipments (UEs)) to directly transmit user data (eg, voice, multimedia data, etc.) between devices without going through a network. It is a communication method.
  • ProSe communication may include a method such as UE-to-UE communication, Peer-to-peer communication, and the like.
  • the ProSe communication method may be used for machine-to-machine communication (M2M), machine type co-unicat ion (MTC), and the like. Therefore, ProSe is considered as a way to solve the burden of the base station due to the rapidly increasing data traffic.
  • the introduction of ProSe can reduce the procedure of the base station, decrease the power consumption of the devices participating in the ProSe, increase the data transmission rate, increase the capacity of the network, load balancing, cell coverage can be expected.
  • An object of the present invention is to provide a method for performing group communication including UE-to-Network Relay operation with respect to ProSe-based group communication mechanism.
  • a method of performing group communication based on proximity service (Prose) in a wireless communication system which is an aspect of the present invention for solving the above problems, includes a relay terminal ( Relay user equipment, relay UE, and ProSe UE-to-Netvork Relay) performing group communication registration with a network node; And performing, by the relay terminal, group communication with the network node, wherein the group communication includes: among the plurality of terminals registered to the network node, except for a relayed user equipment (Relayed UE).
  • the downlink signal may be configured to be transmitted by a multimedia broadcast and multimedia service (MBMS) scheme.
  • MBMS multimedia broadcast and multimedia service
  • the relay terminal receiving a first message for group registration of the network node from a relayed UE (Relayed UE); And transmitting, to the network node, a second message for group registration of the relay terminal.
  • the second message may be characterized by including the location information of the relay terminal.
  • the location information may include at least one of a tracking area identity (TAI) and an ECGKE-UTRAN Cell Global Identifier (TAI), or the second message may include relay operation related information.
  • the related information may include whether the relay terminal operates the relay to the relay receiving terminal, whether the relay terminal registers the group through the relay terminal, whether the relay terminal participates in the group communication through the relay terminal, Whether it exists in the network coverage of the relay receiving terminal, or in E-UTRAN coverage that does not support group communication of the relay receiving terminal Or at least one of whether the relay receiving terminal is located within a group communication service range, or the second message may include identification information of the relay terminal.
  • the method may further include receiving MBMS service information from the network node.
  • the MBMS service information may include at least one relay terminal and at least one within a service range of the group communication.
  • the relay receiving terminal of the characterized in that configured to be transmitted only to the at least one relay terminal, or the MBMS service information is at least one of a service identifier (ID) Temporary Mobile Grou Identity (TMGI), the multicast address of Mid It may be characterized by including one.
  • ID service identifier
  • TMGI Temporary Mobile Grou Identity
  • the granularity of the service coverage of the group communication includes a single cell, a group ' communication service area, an MBMS service area, a single tracking area, and a plurality of tracking areas.
  • the cell may be one of a plurality of cells, a multimedia broadcast multicast service single frequency network (MBSFN) region, a region previously specified for group communication, and a public land mobile network (PLMN).
  • MMSFN multimedia broadcast multicast service single frequency network
  • PLMN public land mobile network
  • a method of supporting group communication based on proximity service (Proximity Service) in a network node in a wireless communication system which is an aspect of the present invention for solving the above problems, Registering at least one UE (User Equipment, UE) to a specific group that receives data from the network; And determining a group communication scheme for a plurality of terminals registered in the specific group, wherein the group communication scheme includes, among the plurality of terminals, except a relayed user equipment (Relayed User Equipment, Relayed UE).
  • the terminal may be determined by a MBMS (niult imedia broadcast and multimedia service) scheme.
  • the network node may further include receiving user service information (User Service Description USD) for MBMS delivery from a broadcast multicast service center (BM-SC). . Furthermore, the network node may include at least one relay terminal among at least one relay terminal and at least one relay receiving terminal within a service range of the group communication. It is characterized in that it is configured to transmit only the MBMS information for the user, or the user service information, characterized in that configured to be used for receiving downlink media / traffic of the relay UE (Reiay UE) existing within the service range of the group communication Can be.
  • Reiay UE relay UE
  • a relay terminal for performing group communication based on proximity service (Prose) in a wireless communication system which is another aspect of the present invention for solving the above problems.
  • the downlink signal is set to transmit in a multimedia broadcast and multimedia service (MBMS) scheme.
  • MBMS multimedia broadcast and multimedia service
  • a network node supporting group communication based on proximity service (Prose) in a wireless communication system is wireless.
  • a frequency unit Radio Frequency Unit, RF Unit;
  • a processor wherein the processor registers at least one user equipment (UE) to a specific group that receives data from the network node, and at least one terminal registered to the specific group.
  • the group communication method is configured to determine a group communication method, and the group communication method is a terminal except for a plurality of terminals registered in the network node (relayed user equipment, relayed UE, ProSe UE—to-Net work relay). If the number of the more than the reference value, MBMS (multimedia broadcast and multimedia service) characterized in that configured to transmit the downlink signal.
  • MBMS multimedia broadcast and multimedia service
  • FIG. 1 is a diagram illustrating a schematic structure of an EPS (Evolved Packet System) including an EKXEvolved Packet Core (EK).
  • EPS Evolved Packet System
  • EK EKXEvolved Packet Core
  • FIG. 2 is a diagram illustrating a default data path through which two UEs communicate in EPS.
  • 3 is a diagram illustrating a direct mode data path between two UEs based on ProSe.
  • FIG. 4 is a diagram illustrating a locally-routed data path between two UEs based on ProSe.
  • FIG. 5 is a diagram illustrating group communication including UE-to-Network Realy operation based on ProSe.
  • FIG. 6 is a reference diagram for explaining a group communication service.
  • FIG. 7 is a diagram illustrating group communication according to an embodiment of the present invention.
  • FIG. 8 is a diagram for explaining group communication according to another embodiment of the present invention.
  • FIG. 9 is a diagram illustrating a configuration of a preferred embodiment for a terminal device and a network node device according to an example of the present invention.
  • each component or feature may be considered to be optional unless otherwise stated.
  • Each component or feature may be implemented in a form that is not combined with other components or features.
  • some components and / or features may be combined to form an embodiment of the present invention. As described in the embodiments of the present invention The order of the operations may be changed. Some configurations or features of one embodiment may be included in another embodiment or may be substituted for components or features of another embodiment.
  • Embodiments of the present invention may be supported by standard documents disclosed in relation to at least one of the Institute of Electrical and Electronics Engineers (IEEE) 802 series system, 3GPP system, 3GPP LTE and LTE-A system, and 3GPP2 system. have. That is, steps or parts which are not described to clearly reveal the technical spirit of the present invention among the embodiments of the present invention may be supported by the above documents. In addition, all terms disclosed in this document can be described by the above standard document.
  • IEEE Institute of Electrical and Electronics Engineers
  • [34]-UMTS Universal Mobile Telecommunications System: The third generation based on the Global System for Mobile Co.unicat ion (GSM), developed by 3GPP.
  • GSM Global System for Mobile Co.unicat ion
  • EPS Evolved Packet System
  • IP EPCXEvolved Packet Core
  • UMTS is an evolutionary network.
  • the UE may be referred to in terms of terminal, mobile equipment (ME), mobile station (MS), and the like.
  • the UE may be a portable device such as a laptop, a mobile phone, a personal digital assistant (PDA), a smart phone, a multimedia device, or a non-portable device such as a personal computer (PC) or a vehicle-mounted device.
  • the UE is a UE capable of communicating in a 3GPP spectrum such as LTE and / or non-3GPP spectrum such as WiFi, public safety spectrum.
  • Proximity Services or Proximity-based Services enables discovery between physically close devices and direct communication between base stations / communication via base stations / communication through third-party devices. Service. In this case, user plane data is exchanged through a direct data path without passing through a 3GPP core network (eg, EPC).
  • EPC 3GPP core network
  • Proximity Whether a UE is in proximity to another UE is determined depending on whether a predetermined proximity criterion is satisfied. Proximity criteria may be given differently for ProSe discovery and ProSe communication. In addition, the proximity criterion may be set to be controlled by the operator.
  • ProSe Co unicat ion communication between adjacent UEs performed through a communication path established between UEs.
  • the communication path may be established directly between UEs or may be routed through local base station (eNodeB) (s).
  • eNodeB local base station
  • ProSe-enabled UE UE that supports ProSe discovery and / or ProSe communication.
  • UE ProSe-enabled UE
  • [44]-ProSe enabled network A network that supports ProSe discovery and / or ProSe communication. Hereinafter referred to as a network.
  • [45]-ProSe Group Communication A method of establishing a common communication path between proximity service-enabled terminals.
  • One-to-many ProSe Communication between ProSe-enabled UEs (one or more).
  • Proximity Service UE-to-UE Relay Proximity service-enabled public safety UE and proximity service—enable public safety terminal A type of relay that acts as a proximity service communication relay between safety UEs.
  • [48]-RAN Radio Access Network: a unit including a NodeB, an eNodeB and an RMXRadio Network Controller controlling them in a 3GPP network. It exists between the UE and the core network and provides a connection to the core network.
  • HLR Home Location Register
  • HSS Home Subscriber Server
  • Radio Access Network Application Part Nodes responsible for controlling the RAN and core networks (MME (MobUity Management Entity) / SGSN (Serving GPRS (General Packet Radio Service) Supporting Node) / MSC (Mob i les Switching Center) ) Interface between.
  • MME Mobility Management Entity
  • SGSN Serving GPRS (General Packet Radio Service) Supporting Node
  • MSC Mobility i les Switching Center
  • PLMN Public Land Mobile Network
  • -NAS Non Access Stratum
  • HNB Customer Premises Equipment (CPE) that provides UMTS Terrestrial Radio Access Network (UT AN) coverage.
  • CPE Customer Premises Equipment
  • [54]-HeNodeB Home eNodeB: Customer Premises Equipment (CPE) providing E-UTRAN (Evo 1 ved-UTRAN) coverage.
  • CPE Customer Premises Equipment
  • E-UTRAN Evo 1 ved-UTRAN
  • CSG Close Subscriber Group
  • PLMN Public Land Mobile Network
  • [56]-LIPACLocal IP Access An IP capable UE accesses an entity with another IP function in the same residential / enterprise IP network via H (e) NB. LIPA traffic does not cross the operator network.
  • the 3GPP Release-10 system provides access to resources on a local network (ie, a network located in a customer's home or company premises) via H (e) NB.
  • SIPT0 IP Traffic Offload
  • PDN Packet Data Network
  • IP address one IPv4 address and / or one IPv6 prefix
  • APN Access Point Name
  • EPC Evolved Packet Core
  • FIG. 1 is a diagram illustrating a schematic structure of an evolved packet system (EPS) including an evolved packet core (EPC).
  • EPS evolved packet system
  • EPC evolved packet core
  • EPC is a key element of System Architecture Evolution (SAE) to improve the performance of 3GPP technologies.
  • SAE is a research project to determine the network structure supporting mobility between various kinds of networks.
  • SAE aims to provide an optimized packet-based system, for example, supporting various radio access technologies based on IP and providing improved data transmission capability.
  • EPC is a core network (Core Network) of an IP mobile communication system for 3GPP LTE system, and can support packet-based real-time and non-real-time services.
  • CS Circuit-Switchecl
  • PS Packet-Switched
  • EPC IP Multimedia Subsystem
  • the EPC may include various components.
  • an EPC may include various components, a Serving Gateway (SGW), a Packet Data Network Gateway (PDN GW), a Mobility Management Entity (E), and a Serving GPRS (SGSN).
  • SGW Serving Gateway
  • PDN GW Packet Data Network Gateway
  • E Mobility Management Entity
  • SGSN Serving GPRS
  • ePDG General Packet Radio Service Supporting Node
  • ePDG enhanced Packet Data Gateway
  • the SGW is an element that operates as a boundary point between a radio access network (RAN) and a core network and maintains a data path between an eNodeB and a PDN GW.
  • RAN radio access network
  • PDN GW PDN GW
  • the SGW serves as a local mobility anchor point. That is, packets may be routed through the SGW for mobility in the E-UTRAN (Evolved-UMTSCUniversal Mobile Telecommunications System) Terrestrial Radio Access Network defined in 3GPP Release-8 or later).
  • E-UTRAN Evolved-UMTSCUniversal Mobile Telecommunications System
  • SGW also provides mobility with other 3GPP networks (RANs defined before 3GPP releases—8, such as UTRAN or GERAN (GSM (Global System for Mobile Communicat ion) / EDGE (Enhanced Data rates for Global Evolution) Radio Access Network). It can also function as an anchor point for a.
  • RANs defined before 3GPP releases—8 such as UTRAN or GERAN (GSM (Global System for Mobile Communicat ion) / EDGE (Enhanced Data rates for Global Evolution) Radio Access Network). It can also function as an anchor point for a.
  • GSM Global System for Mobile Communicat ion
  • EDGE Enhanced Data rates for Global Evolution Radio Access Network
  • the PDN GW corresponds to the termination point of the data interface towards the packet data network.
  • the PDN GW may support policy enforcement features, packet filtering, charging support, and the like.
  • 3GPP networks and non-3GPP networks eg For example, it may serve as an anchor point for mobility management with an untrusted network such as an Intenvorking Wireless Local Area Network (I-WLAN), a trusted network such as a Code Division Multiple Access (CDMA) network or a WiMax network).
  • I-WLAN Intenvorking Wireless Local Area Network
  • CDMA Code Division Multiple Access
  • SGW and the PDN GW are configured as separate gateways 5 in the example of the network structure of FIG. 1, two gateways may be implemented according to a single gateway configuration option.
  • ⁇ E performs signaling and control functions to support access to the UE's network connection, allocation of network resources, tracking / paging, roaming and handover, etc. It is an element.
  • ⁇ E is subscriber and session management
  • the SGSN handles all packet data such as user mobility management and authentication for other 3GPP networks (eg GPRS networks).
  • 3GPP networks eg GPRS networks.
  • the ePDG acts as a secure node for untrusted non-3GPP networks (eg, I-WLAN, WiFi hotspots-2 ⁇ hotspots, etc.).
  • untrusted non-3GPP networks eg, I-WLAN, WiFi hotspots-2 ⁇ hotspots, etc.
  • a terminal having IP capability may be configured by an operator (ie, an operator) via various elements in the EPC, based on 3GPP access as well as non-3GPP access. Access to the providing IP service network (eg, IMS).
  • IMS IP service network
  • FIG. 1 illustrates various reference points (eg, Sl-U, S1- ⁇ E, etc.).
  • reference points eg, Sl-U, S1- ⁇ E, etc.
  • Table 1 summarizes the reference points shown in FIG. 1.
  • S2a and S2b correspond to non-3GPP interfaces.
  • S2a is a reference point that provides the user plane with relevant control and mobility support between trusted business 3GPP access and PDN GW.
  • S2b is a reference point that provides the user plane with relevant control and mobility support between the ePDG and PDN GW.
  • the present invention proposes a control mechanism for supporting ProSe or D2D service in a mobile communication system such as 3GPP EPS (Evolved Packet System).
  • 3GPP EPS Evolved Packet System
  • ProSe's possible uses include commercial / social services, network offload, public safety, and integration of existing infrastructure services (which include aspects of reachability and mobility). To ensure the consistency of the user experience).
  • public safety in the absence of E-UTRAN coverage (in this case, subject to compliance with local regulatory and operator policies, and limited to specific frequency bands and specific terminals designated for public-safety). Use cases and possible requirements are under discussion.
  • FIG. 2 is a diagram illustrating a default data path through which two UEs communicate in EPS. That is, FIG. 2 exemplarily shows a data path between UE-1 and UE-2 in a case where ProSe between UE-1 and UE-2 is not applied. This basic path goes through the base station (ie eNodeB or Home eNodeB) and gateway nodes (ie EPC or operator network). For example, as shown in FIG. 2, when UE-1 and UE-2 exchange data, data from UE-1 passes through eNodeB-1, S-GW / P-GW, and eNodeB-2.
  • base station ie eNodeB or Home eNodeB
  • gateway nodes ie EPC or operator network
  • UE-1 and UE-2 are camped on different eNocleBs, but may be camped on to the same eNodeB.
  • FIG. 2 shows that two UEs receive services from the same S-GW and P-GW, various combinations of services are possible. That is, they may receive services from the same S-GW and different P-GWs, may receive services from different S-GWs and the same P-GW, or receive services from different GWs and different P-GWs. It may be.
  • such a basic data path may be referred to as an infrastructure data path (ie, an infrastructure path or an infrastructure data path or an infrastructure communication path).
  • communication through such infrastructure data path may be referred to as infrastructure communication.
  • FIG. 3 is a diagram illustrating a direct mode data path between two UEs based on ProSe. This direct mode communication path does not go through the base station (ie eNodeB or Home eNodeB) and gateway nodes (ie EPC).
  • base station ie eNodeB or Home eNodeB
  • gateway nodes ie EPC
  • FIG. 3 (a) shows data through a direct mode communication path while UE-1 and UE-2 are camping on different eNodeBs (ie, eNodeB-1 and eNodeB-2), respectively. Illustrates the case of giving and receiving.
  • 3 (b) exemplarily illustrates a case in which UE-1 and UE-2 camping on the same eNodeB (ie, eNodeB-1) exchange data through a direct mode communication path.
  • the data path of the user plane is formed directly between the UE without passing through the base station or the gateway node as shown in Figure 3, it is noted that the control plane path may be formed through the base station and the core network. Should be.
  • the control information exchanged through the control plane path may be information related to session management, authentication, author izat ion, security, billing, and the like.
  • ProSe communication of UEs served by different eNodeBs as in the example of FIG.
  • control information for UE-1 is passed through the eNodeB-1 to the control node of the core network (eg, E) and control information for UE-2 may be exchanged with a control node (eg, E) of the core network via the eNodeB-2.
  • control information for UE— 1 and UE— 2 is passed through the eNodeB— 1 to the control node of the core network (eg. For example, E).
  • FIG. 4 is a diagram illustrating a locally-routed data path between two UEs based on ProSe.
  • the ProSe communication data path between UE-1 and UE-2 is formed via eNodeB-1, but does not go through a gateway node (ie, EPC) operated by an operator.
  • the control plane path is a local route of UEs served by the same eNodeB as shown in FIG. 4.
  • control information for UE-1 and UE-2 may be exchanged with a control node (eg, E) of the core network via the eNodeB-1.
  • a control node eg, E
  • the communication path described with reference to FIGS. 3 and 4 may be referred to as a direct data path, a data path for ProSe, a ProSe-based data path, or a ProSe communication path.
  • communication through such a direct data path may be referred to as direct communication, ProSe communication, or ProSe based communication.
  • FIG. 5 illustrates a Group Communication Unicat ion scenario including Network Relay operation at UE t.
  • UE-1, UE-2, UE-3, UE-4, and UE-5 all represent member UEs / users / subscribers belonging to the same group.
  • AS Application Server
  • Group communication (or group call) is similar to Push To-Talk (PTT), and in order to participate in group communication, joining to a group must be performed.
  • PTT Push To-Talk
  • one UE may be a transmitter of a talking party, that is, a media (eg, voice, etc.) at a time.
  • a media eg, voice, etc.
  • other UEs receive the media transmitted by the talking party UE.
  • the role of the talking party UE may be performed when the transmission permission is explicitly or implicitly received from the application server or the dispatcher.
  • the group communication service is received through the UE-4 without receiving the group communication service through the network.
  • the UE is in EHJTRAN coverage that does not support group communication even if it is outside 3GPP network coverage (hereinafter, E-UTRAN coverage) or in E-UTRAN coverage.
  • the group communication service may be received through a relay operation with a member UE belonging to the same group that receives the group communication service through the network. Therefore, in the present invention, the E—UTRAN coverage supporting group communication will be referred to as a group communication service range.
  • group communication department Details of the relevant service requirements can be found in 3GPP TS 22.468 and 3GPP TR 22.803.
  • GC2 is a multi-point service.
  • BM-SC Broadcast Multicast Service Center
  • MBMS—GW on a Core Network are used for multi-point services
  • GC2 is a multi-point service.
  • GC1 is used for signaling a Group Communication Service Enabler Application Server (GCSE AS) for the purpose of registering a group coordination service enabler (GCSE) group of a terminal, relaying eMBMS related information, and service continuity.
  • GCSE AS Group Communication Service Enabler Application Server
  • GCSE group coordination service enabler
  • the main role of the GCSE AS is to unicast downlink media for i) a specific group communication or ii) a specific UE / receiving group member participating in the group communication. It is to decide whether to deliver in unicast or multicast mode (ie MBMS).
  • uplink traffic is always delivered in a unicast manner, and a multi-point service is realized using an eMBMS (for details, see 3GPP TS 23.246). .
  • the present invention proposes specific examples of control plane signaling for enabling control of ProSe by an operator / network.
  • Proximity-based group communication control mechanism proposed in the present invention is described below.
  • the relay receiving UE may be configured as a combination of at least one operation of operating a primary relay UE and a secondary relay UE, or 5) operation of a group communication AS.
  • the operations 1) to 5) proposed by the present invention will be described in detail.
  • the relay UE joins the relayed UE to the group
  • operations in which a UE (hereinafter referred to as a relaying UE or UE-1) that is outside the scope of group communication service joining a group to receive group communication service may be a combination of one or more operations described below. It may be configured as.
  • a UE capable of relaying group communication that is, a UE—a UE capable of to-network relay (hereinafter, referred to as a relay UE or UE-2) may be relayed by itself (ie, a relay UE). It is possible to announce at least one identifier (s) for an existing group. As such, the identifier (s) transmitted from the relay UE may be directly received by another UE or may be received by another UE through the eNodeB.
  • the announcement may be simultaneously performed when the relay UE (ie, UE-2) announces its presence in relation to proximity service.
  • a separate notification may be made for at least one identifier for the relayable group and for its presence in proximity service.
  • the relay UE i.e., UE-2
  • the relay UE may have already performed a join operation to the group (s), but may relay It may be known even before performing a join operation to a group.
  • the relaying UE (ie, UE-1) recognizes or discovers a UE capable of relaying group communication of a group to which it belongs (hereinafter referred to as group # 1) ( Directly or via a network) to perform a join to a relay capable UE (ie UE # 2).
  • group # 1 a UE capable of relaying group communication of a group to which it belongs
  • group # 2 a relay capable UE
  • the relay capable UE ie, Joining to UE-2
  • the relay capable UE may be interpreted throughout the present invention as an operation for joining a group to be relayed (that is, group # 1).
  • the UE receiving the relay (ie, UE-1) transmits a join request message through the relay capable UE (ie, UE-2). If the relaying UE (ie, UE-1) has recognized / discovered a plurality of relay capable UE (s), it may select a relay UE based on various criteria. For example, i) a relay UE (i.e., UE-2) based on group information that a relay capable UE can relay ⁇ ) signal strength, iii) preference, iv) configuration / policy, etc. ) May be selected.
  • UE-A may provide relay for group communication of group # 1 and group # 2
  • UE-B may provide relay for group communication of group # 1.
  • UE-A relays May be selected as the UE.
  • the join request message transmitted by the UE- 1 to the UE- 2 may include various information required for group communication.
  • identification information of a relaying UE ie, UE-1
  • identification information of a group to be joined ie, security related information, and the like may be included.
  • Subsequent operations may be performed as follows according to whether group relay (ie, group # 1) joins of the relay UE (ie, UE-2).
  • group # 1 there is no need to inform the group (i.e., group # 1) that the relay operation should be performed (e.g. network / group communication system / AS / Dispatcher) or permission from the group in relation to relay operation. If you do not have a need to be there, and sent to the recipient (without the transmission of a message to a group including a relay information ") relays the response message to the UE joins (join) request.
  • group # 1 the relay operation should be performed (e.g. network / group communication system / AS / Dispatcher) or permission from the group in relation to relay operation. If you do not have a need to be there, and sent to the recipient (without the transmission of a message to a group including a relay information ") relays the response message to the UE joins (join) request.
  • the relay operation e.g. network / group communication system / AS / Dispatcher
  • the relaying UE ie, UE ⁇ 1
  • the relaying UE must be explicitly joined to the group, or the relaying UE must be explicitly joined to the group.
  • a group e.g., network / group communication system / AS / Dispatcher
  • the UE receiving the relay i.e., UE-1
  • the two operations may be performed at the same time, may be performed in a combined form, or may be performed separately.
  • a response message for a join request is transmitted to the relaying UE.
  • a relaying UE ie, UE-1
  • a response message for a join request is transmitted to the relaying UE.
  • a UE providing a relay that is, UE-2) transmits a message for joining a relayed UE (ie, UE ⁇ 1) to a group
  • the UE providing the relay That is, UE-2) additionally or selectively groups UEs (ie, UE-2) that relay their location information (e.g., TAI (Tracking Area Identity) and / or ECGKE—UTKE Cell Global Identifier). It can also be included in a message to join a. Furthermore, this can be applied throughout the present invention.
  • information related to relay operation in 3-a— 1) and 3-a ⁇ 2) may be one or more of the information described below, which may be explicit or implicit. Can be.
  • relay operation related information may always be transmitted to the network (or group communication system / group communication AS / Dispatcher, etc.) in case of 3-a-2.
  • the relay operation related information may be included to perform a join operation. This can be applied throughout the present invention.
  • UE-2 a UE providing a relay
  • UE-1 a relayed UE
  • UE-1 Joins the group via the relay UE (i.e., UE-2).
  • the UE joining the group (i.e., UE-1) is either i) outside network coverage, not served by ⁇ ) or eNodeB, or iii) or by a relay UE Information that is being served
  • Identification information of the UE acting as a relay IE eg, ID information, IP address information, etc.
  • a UE providing a relay ie, UE-2
  • the UE and the location information eg, TAI and / ECGI, etc.
  • the joining UE may announce that it is participating in group communication via the relay UE.
  • a relay UE ie, UE # 2 that has received a join request from a relaying UE (ie, UE-1) is still joined to a group (eg, Group # 1). )
  • relay UE shall inform the group (eg network / group communication system / AS / Di spatcher etc.) that it should perform a relay operation or obtain permission from the group for relay operation. It performs a message transmission including information related to the operation that the user joins to the group / ⁇ ) the relayed UE / iii) the relay operation to the receiving UE.
  • the three operations ie, i, ii, iii) may be performed simultaneously, in a combined form, or may be performed separately (ie, independently).
  • the relay UE then sends a response message to the join request to the relaying UE.
  • a message transmission including information related to the join operation / relay operation for the UE that joins / relays to the group is received. It can also be done.
  • the relaying UE ie, UE-1
  • the relaying UE ie, UE-1
  • the relaying UE ie, UE-1 must be explicitly joined to the group.
  • the user joins to the group / ⁇ ) Performs a join operation on the receiving UE.
  • the two operations i.e., i and iO may be performed simultaneously, may be performed in a combined form, or may be performed separately.
  • join to a relayed UE Send a response message to the request.
  • a join operation may be performed for the UE that joins / relays the UE.
  • the information exchange required for ⁇ mutual authentication and ⁇ group communication is required.
  • At least one of establishing a security relationship for the group communication (eg, security key exchange) and iv) storing information / context for the counterpart UE may be completed or performed.
  • the above-mentioned i) relay UE transmits and receives a message to join (join) to the group, and ii) relaying UE to send and receive to join (join) the group, and iii) relay operation related information
  • the messages exchanged between the relay UE and the network may be a RAN node (e.g., eNodeB) / Core Network Node (e.g., E, S-GW, P-GW, ProSe Service related node / server, group communication system And / or an application server for group communication / Dispatcher.
  • the messages exchanged between the relay UE and the network may use an existing message or a newly defined message. For example, an existing AS / R C message or NAS message may be used, a newly defined AS / RRC message or NAS message may be used, or a message of a new protocol may be defined and used.
  • the relay UE delivers the media / group call / group communication received from the network (or group) to the relaying UE. At this time, the relay UE may transmit the identifier information of the talking party together.
  • the relay UE delivers the media / group call / group communication created by the relay UE to the relay receiving UE.
  • the relay UE may transmit its identifier information together with the identifier information of the taiking party.
  • the relay UE may also transmit the media / group call / group communication generated by the relay UE to the network (or group).
  • the relay UE may transmit media / group call / group communication transmitted by the relaying UE to the network (or group).
  • the relay UE may transmit the identifier information of the relayed UE as the identifier information of the talking party, and may additionally provide the identifier information of the relay UE.
  • a relayed UE may need to receive a transmit permission from the network, either explicitly or implicitly.
  • the relay UE may perform an operation for receiving transmission permission for the relaying UE, which may be operated similarly to the above in the operation of joining the relaying UE to the group.
  • the relay UE no longer relays or is likely to be unable to relay to the relaying UE (eg, the relay UE and the relaying UE are separated from each other, or the relay UE is also out of the group communication service range). If necessary) it is necessary to reselect the relay UE.
  • This operation consists of a combination of one or more of the following.
  • the relaying UE may additionally perform an leave request operation to an old relay UE (that is, a relay UE that previously provided a relay but no longer provides a relay).
  • an old relay UE that is, a relay UE that previously provided a relay but no longer provides a relay.
  • the leave operation may be performed implicitly.
  • the leave operation means that the relaying UE leaves from the old relay UE and does not mean leaving in the group.
  • the relay UE recognizes / determines that it can no longer perform a relay operation to the UE to which it relays. Accordingly, the relay UE performs at least one of selecting another relay UE to delegate the relay role, and ⁇ ) notifying the relayed UE of the related information. In this case, the relevant information notified to the relaying UE is not included when the delegated operation is performed to another relay UE. If it does not delegate to other relay UEs, it includes only the information that it can no longer perform relay operation (ie, old relay UE).
  • the relay UE should be reselected for the relaying UE.
  • the network performs at least one of i) selecting another relay UE to delegate the relay role, ⁇ ) notifying the relaying UE of the relevant information.
  • the related information notified to the relaying UE includes information related to the case in which the relaying operation is delegated to another relay UE, but more information is transmitted by the old relay UE if the relaying UE is not delegated to another relay UE. It only contains information that the abnormal relay operation cannot be performed.
  • the operation of transferring information / context about the relayed UE which the old relay UE has to the new relay UE is additionally performed. It may be done.
  • the network may store information about the relayed UE and the relay UE.
  • a relay receiving UE operates a primary relay UE and a secondary relay UE
  • UE-1 When a UE outside the group communication service range (hereinafter, UE-1) first selects a relay UE or re-selects a relay UE, if it is recognized that there are two or more relay UE candidates, two relay UEs are detected. Can be selected.
  • one of the two selected relay UEs play a role of a primary relay UE, and the other relay UE plays a role of a secondary relay UE.
  • the UE selectable as the primary relay UE may provide relays for the two groups.
  • the relaying UE may select / specify a primary relay UE and a secondary relay IE, but may select / specify only a secondary relay UE. For example, if UE ⁇ C provides relay only for group # 1 and UE-D provides relay only for group # 2, the receiving UE selects both UE-C and UE-D as secondary relay UEs. Can be specified.
  • the plurality of secondary relay UEs may be stored in an ordering form.
  • Examples of information for sorting secondary relay UEs in a relayed UE include: i) importance / priority among groups to be relayed, ⁇ ) relays, membership level of UEs / users relayed in a group to be relayed, iii
  • the group may be in group communication at the time of selecting a relay UE, or iv) whether the UE receiving the relay at the time of selecting a relay UE is a talking party.
  • the relaying UE selects a primary relay UE and a secondary relay UE.
  • One of the following operations can be performed. This may be performed after selecting the primary relay UE and the secondary relay UE at the same time, or after selecting one relay UE and performing an operation with the selected UE, and then additionally selecting another UE. An operation with the selected UE may be performed.
  • the relaying UE may request the primary relay UE to join or perform a role of the primary relay UE explicitly or implicitly.
  • the primary relay UE can be informed about the secondary relay UE.
  • the primary relay UE performs the above-described operation as the relay UE in the operation of joining the relayed UE to the group.
  • the primary relay UE may include information indicating that it is a primary relay UE in a message transmitted to the network.
  • the primary relay UE performs the above-described operation as the relay UE in connection with the operation of providing relay to the relayed UE by the relay IE.
  • the relaying UE may request to play the secondary relay UE explicitly or implicitly while joining the secondary relay UE.
  • the relayed UE ie, UE-1) may inform information about the primary relay UE.
  • the secondary relay UE may or may not perform the above-described operation as the relay UE in connection with joining the UE to which the relay RS is relayed to the group. If the relay UE performs the above-described operation with respect to joining the relayed UE to the group, it is transmitted to the network.
  • the message may include information indicating that it is a secondary relay UE.
  • the relaying UE (that is, UE-1) may form only a relationship between the relay UE and the relaying UE, instead of performing an operation of joining the secondary relay UE.
  • various information necessary for forming a relationship between the relay UE and the relayed UE may be exchanged including information about the primary relay UE.
  • a secondary relay UE (one of a plurality of secondary relay UEs) is switched to a primary relay UE, and another UE belonging to the same group or a UE capable of relaying group communication for a group to be relayed (see discover) and select the secondary relay UE.
  • the primary relay UE recognizes / determines that it can no longer perform relay operation to the relaying UE, and selects another relay UE to delegate the primary relay UE role; ii ) At least one of an operation of notifying relevant information to the relaying UE may be performed.
  • the related information notified to the relaying UE may include information on the case of delegation to another relay UE, but if the delegate information is not delegated to another relay UE, the primary relay UE no longer relays the information. It can only contain information that the action cannot be performed.
  • the relaying UE may perform an operation of selecting a primary relay UE.
  • delegating a primary relay UE role to a secondary relay UE one of the plurality of secondary relay UEs
  • ii) related information to the relayed UE (here, delegated to the secondary relay UE) Perform at least one of the following actions, including information about this, and notifying the secondary relay UE only if it does not delegate to the secondary relay UE (i.e., only the information that the primary relay UE can no longer perform the relay operation). can do.
  • an operation of selecting the secondary relay UE may be further performed.
  • the secondary relay UE recognizes / determines that it can no longer perform the relay UE role to the UE to which the relay is relayed, i) selects another relay UE to delegate the secondary relay UE role ii) reel Related information to the rare receiving UE (including information about when delegating to another relay UE, and information that it cannot perform relay operation anymore (i.e., secondary relay UE) if it does not delegate to another relay UE) Only include) may perform at least one of the notification operation. After the relaying UE receives the information, the relaying UE may perform the operation of selecting the secondary relay UE.
  • delegating the primary relay UE role to the secondary relay UE if there are a large number of secondary relay UEs); and related information to the receiving UE (referring to the new secondary relay IE). If so, information on this may be included. Otherwise, only the information indicating that the primary relay UE may no longer perform the relay operation may be performed. After the relaying UE receives the information, an operation of selecting the secondary relay UE may be additionally performed.
  • the network may store information on the relayed UE, the primary relay UE, and the secondary relay UE.
  • the secondary relay IE When the secondary relay IE is switched to the primary relay UE, if the relaying UE performs an operation related to joining to the aforementioned primary relay UE and the secondary relay UE, the secondary relay UE is As soon as it recognizes / determined that it has been switched to the head relay UE, it can play the role of primary relay UE. Furthermore, the switched relay UE (from the secondary relay UE to the primary relay UE) is explicitly assigned a primary relay UE role (eg, during group communication) from the relayed UE to determine whether the switching is acknowledged. If you receive a request for media relay)
  • Acknowledgment / decision may be possible even if there is no explicit request from the UE.
  • the relay UE When the secondary relay UE is switched to the primary relay UE, if the relaying UE performs an operation related to joining only the primary relay UE described above, the relay UE receives a primary relay from the relaying UE. After receiving the request for the UE role initiation, it can perform the primary relay UE role.
  • a relay receiving UE operates a primary relay UE and a secondary relay UE, and performs an operation of joining both the primary relay UE and the secondary relay UE or joining only the primary relay UE
  • the criteria for the receiving / receiving UE to select / determine / replace primary and secondary among the two relay UEs is based on: i) group information that a relay capable UE can relay, ii) signal strength, iii) preference, iv) Various criteria can be used, such as configuration / policy.
  • whether or not to receive / receive a relay may be determined based on various information as follows. However, the following information is only listed for convenience of description, it is not limited to this.
  • the UE receiving the relay is a talking party at the time of selecting a relay UE
  • History related information when the relaying UE was in E-UTRAN coverage For example, the last serviced PL ⁇ information, whether the PLMN was a roaming network, or the like.
  • Group Communication AS decides whether to transmit downlink media / traffic for a specific group using a multicast method, that is, using multicast or MBMB. When, i) can be determined based on the number of members belonging to the group in the cell or ii) the number of UEs / users participating in the group communication of the group.
  • the group communication AS performs a count (ie, does not count) except when counting the number of members belonging to a group in a cell (via a relay UE). Therefore, although the UE that is actually within the coverage of the cell and can receive MBMS media / traffic while receiving the service of the eNodeB is smaller than the reference value, the UE participating in the group communication through the relay UE ( That is, it is possible to prevent improper decision by using MBMS by counting all the UEs that cannot receive MBMS media / traffic.
  • the local unit determining this may be various sizes (granularity). For example, group communication service area, MBMS service area, a tracking area, multiple tracking areas, single cell, multiple cells, multi-media broadcast multicast service single frequency network (MBSFN) area, It can be a divided / divided area, PLMN, etc.
  • MMSFN multi-media broadcast multicast service single frequency network
  • MBMS service information (MBMS service informat ion) / MBMS service information / MBMS USD Jser Service Descr If it is necessary to transmit the ipt ion), it does not transmit to the UE participating in the group communication through the relay UE.
  • the group communication AS needs to transmit MBMS service information
  • the MBMS service information may be transmitted to the relay UE.
  • the MBMS service information needs to be transmitted to the UE, i) transmit MBMS service information to all UEs joined to the group in order to deliver downlink media / traffic for the specific group in the MBMS manner. Ii) already transmitting downlink media / traffic using MBMS. If a new UE joins the group, iii) the contents of the MBMS service information may change.
  • the above-described MBMS service information is various information required for the UE to receive MBMS media / traffic, and includes a service ID, a Temporary Mobile Group Identity (TMGI), a multicast address / port of media, and the like. You can see information about the media.
  • TMGI Temporary Mobile Group Identity
  • the group communication AS determines whether the UE joined to the group participates in the group communication through the relay UE. Can be used.
  • a message joining a group is received from the UE.
  • the message includes relay operation related information.
  • the information that may correspond to the relay operation related information applies mutatis mutandis as described in the operation of joining the relayed UE to the group by the relay UE.
  • the relay operation related information may be included in the message to join the group (join) to the UE providing the relay, or may be included in the UE receiving the relay.
  • a message joining a group has been received from the UE, and the message does not include location information about the UE.
  • the group communication AS when the group communication AS receives a message joining a group from the UE, the group communication AS performs a join on the group, and the UE / user whose join is authenticated.
  • the group communication AS When storing the information about the information that indicates participating in the group communication through the relay UE (that is, relay operation related information) can be stored together.
  • the group communication including the UE-to-Network relay operation has been described, but the proximity-based group communication method proposed in the present invention includes the UE-to-UE relay operation. It can be extended to group communication. In addition, the present invention can be extended and applied even when multiple UEs transmit media at the same time. In addition, the present invention can be applied not only to group communication but also to one-to-one communication, broadcast communication, and the like through a relay.
  • the operation of joining the above-described group in the present invention may be registered in a group (which includes a node or a function related to group communication, such as a group communication system / group communication AS / Dispatcher). Can be interpreted as
  • the operation of discovering the UE capable of relaying by the UE may mean an operation of performing discovery while exchanging messages with each other. It may be simply that the UE wishing to receive the relay recognizes / discovers the UE that can enjoy the relay.
  • the application server for the group communication corresponds to the GCSE AS of FIG. 6 or may be interpreted to include the GCSE AS. Can be.
  • the present invention is not limited to LTE / EPC networks, but includes a 3GPP access network (for example, UTRAN / GERAN / E-UTRAN) and a non_3GPP access network (for example, WLAN). Can be applied. In addition, it can be applied in all other wireless mobile communication system environments in the environment where control of other networks is applied.
  • a 3GPP access network for example, UTRAN / GERAN / E-UTRAN
  • WLAN non_3GPP access network
  • FIG. 7 shows group communication (uni-cat ion) according to an embodiment of the present invention.
  • UE-1 (OO), UE-2 (200), and UE-3 (300) are members of Group # 1
  • UE # 1 (100) participates in group communication for Group # 1 through the network. It cannot be assumed that the UE-to—participates in group communication for group # 1 through a network relay (ie UE-2).
  • step 1 of FIG. 7 the UE-2 200 participates in group communication for group # 1 and joins / registers with its group, that is, a GCSE register message.
  • the GCSE AS 800 sends a response message to the GCSE registration message received from the UE-2 200, that is, a GCSE Register Ack message to the UE-2 200. To).
  • step 3 of FIG. 7 the UE-K100 recognizes or discovers a UE—to-Network relay to participate in group communication for Group # 1.
  • UE 2 200 Is determined to provide a relay for the group communication. Since the discovery / decision method of the relay UE has already been described in detail in the above-described proximity service-based group communication in the present invention, the method is replaced with the above description to avoid duplication. .
  • step 4 of FIG. 7 the UE— 1 (100) joins a group communication for Group # 1 and joins / registers a message, that is, a GCSE registration message, with the UE- 2 (200) (or, as a result, it is transmitted to the GCSE AS 800, so it may be interpreted as transmitting to the GCSE AS 800).
  • a message that is, a GCSE registration message
  • the UE-2 200 transmits a GCSE registration message received from the UE-l (OO) to the GCSE AS 800.
  • the UE-2 200 may include relay operation related information in the GCSE registration message.
  • the relay operation related information may be included in the UE-1 100 in step 4 described above. Details of the relay operation related information have already been described in detail in the above-described proximity service-based group communication in the present invention. Therefore, the relay operation related information is replaced with the above description in order to avoid duplication of the contents.
  • the GCSE AS 800 that receives the GCSE registration message in step 6 of FIG. 7 recognizes that the UE-1 100 wants to participate in group communication for the group # 1 through the relay UE.
  • the GCSE AS 800 transmits a response message ⁇ to the GCSE registration message received from the UE-lOO 100, that is, a GCSE registration confirmation message, to the UE-2 200. (Or, this may be interpreted as transmitting to UE-K100 since it is transmitted to UE-l (100) as a result.)
  • step 7 of FIG. 7 the UE-2 200 transmits a GCSE Register Ack message received from the GCSE AS 800 to the UE-1 100.
  • step 8 of FIG. 7 it is assumed that group communication for group # 1 is started / started so that the GCSE AS 800 determines that the downlink media / traffic is transmitted by unicast.
  • the GCSE AS 800 transmits the downlink media / traffic to the UE-2 (200) in a unicast manner.
  • the number of all UEs participating in the group communication of 1 may still be small (ie, less than the reference value) to use the MBMS scheme. have. In counting the number of UEs, a UE (ie, UE-1) participating in group communication via a relay UE does not count or consider.
  • the UE— 2200 that receives the downlink media / traffic for the group # 1 from the network may transmit the media / traffic through the ProSe counicat ion.
  • UE-1 transmits to 100.
  • step 10 of FIG. 7 the UE-3 300 participates in group communication for Group # 1 and joins / registers a message to its group, that is, a GCSE registration message. Transmit to the UE 800. It is assumed that the UE-3 300 camps on the same cell as the UE-2 200.
  • the GCSE AS 800 transmits a response message to the GCSE Register message received from the UE-3300, that is, a GCSE registration confirmation message, to the UE-3 300.
  • the GCSE AS 800 transmits downlink medium / traffic to the cell in which the UE-2 200 and the UE-3 300 are located in an MBMS manner. Determine. For example, for the reason that the GCSE AS 800 determines to transmit the downlink media / traffic to the MBMS, a cell in which the UE-2 200 and the UE-3 300 camped on. The number of all UEs participating in the group communication of the ecamp-on group # 1 may make such a determination by satisfying the reference value for using the MBMS scheme. When counting the number of UEs, a UE participating in group communication via a relay UE (that is, UE-l (lOO) in FIG. 7) does not count or consider.
  • a relay UE that is, UE-l (lOO) in FIG. 7
  • step 13 step 14, and step 15 of FIG. 7, the GCSE AS 800 obtains USD information about MBMS delivery from the BM_SC 700, and the GCSE AS 800 receives a UE— 2 (200) and UE-3 (300) transmits MBMS USD information, MBMS service information.
  • the GCSE AS 800 does not transmit MBMS USD information to the UE-K100. This is because the GCSE AS 800 knows that UE-l (OO) is participating in group communication through the relay UE.
  • the GCSE AS 800 transmits downlink media / traffic in an MBMS manner.
  • UE-2 200 and UE-3 300 receive the downlink media / traffic based on the MS USD information obtained through steps 14 and 15 above.
  • the UE-2 200 that receives the downlink media / traffic for the group # 1 from the network receives the media / traffic through ProSe counicat ion. Send to UE-l (100).
  • step 12 of FIG. 7 assumes a state in which group communication is already performed (that is, a state in which group communication is started in step 8), it may be that the group communication is initiated in step 12 otherwise. .
  • the UE-2 200 is a member of group # 1, which is a group communication in which UE-l (100) participates.
  • the UE- 2 200 may relay the group communication for the group # 1 to the UE- 1 100 without being a member of the group # 1. In this case, steps 1 and 2 of FIG. 7 need not be performed.
  • FIG. 8 illustrates group communication unicat ion according to another embodiment of the present invention.
  • UE-l (lOO) UE-2200, and UE- 3300 are members of group # 1
  • UE-l (lOO) is able to participate in group communication for group # 1 through the network. It is assumed that it is not possible to participate in group communication for group # 1 through a UE-to-Network relay (ie, UE-2 200).
  • step 1 of FIG. 8 it is assumed that group communication for group # 1 is on-going.
  • the GCSE AS 800 transmits downlink media / traffic in MBMS. Accordingly, the UE-2 200 and the UE-3300 receive downlink media / traffic based on the MBMS USD information that has already been obtained.
  • the UE # 2 200 that receives the downlink media / traffic for the group # 1 from the network transmits the media / traffic through ProSe co-unicat ion. UE-1U00).
  • MBMS service information is changed. This means that one or more of the information constituting the MBMS service information is changed / updated.
  • the GCSE ' AS 800 determines to transmit MBMS USD, MBMS service information, to UEs participating in group communication.
  • the MBMS service information is changed.
  • the QoS related to the MBMS bearer is changed, a group communication is transmitted through an MBMS bearer applying the changed QoS by allocating a new TMGI instead of the existing TMGI. have.
  • the GCSE AS 800 transmits MBMS USD information, which is MBMS service information, to the UE- 2 200 and the UE-3 300:
  • the GCSE AS ( 800 does not transmit MBMS USD information to UE-l (OO). This is because the GCSE AS 800 knows that UE-lOO is participating in group communication through the relay UE.
  • the GCSE AS 800 transmits downlink media / traffic in an MBMS manner. Accordingly, the UE-2 200 and the UE-3 300 receive the downlink media / traffic based on the MBMS USD information that has already been obtained.
  • step 7 of FIG. 8 the UE-2 200 that receives the downlink media / traffic for the group # 1 from the network transmits the media / traffic through ProSe counicat ion. Send to UE-l (100).
  • the UE-2 200 is a member of group # 1, which is a group communication in which UE-l (100) participates.
  • the UE-2 200 may relay the group communication for the group # 1 to the UE-l (100) without being a member of the group # 1.
  • FIG. 9 is a diagram showing the configuration of a preferred embodiment for a terminal device and a network node device according to an example of the present invention.
  • the terminal device 100 may include transmit / receive modules 110, a processor 120, and a memory 130.
  • the transmission / reception modules 110 may be configured to transmit various signals, data, and information to an external device, and receive various signals, data, and information to an external device.
  • the terminal device 100 may be connected to an external device by wire and / or wirelessly.
  • the processor 120 may control operations of the entire terminal device 100, and may be configured to perform a function of the terminal device 100 to process and process information to be transmitted and received with an external device.
  • the memory 130 may store the processed information and the like for a predetermined time and may be replaced with a component such as a buffer (not shown).
  • the terminal device 100 may be configured to participate in ProSe according to a result of detecting ProSe availability or ProSe UE discovery initiated by a network.
  • the processor 120 of the terminal device 100 may be configured to transmit ProSe basic information to the network node 200 using the transmit / receive modules 110. Can be.
  • the processor 120 may be configured to receive ProSe grant indication information from the network node 200 using the transmission / reception modules 110.
  • the processor 120 may be configured to process signaling for performing a direct data path setup with another terminal device.
  • the processor 120 may be configured to perform direct communication with the other terminal device using the transmit / receive modules 110.
  • the processor 120 may be configured to transmit ProSe related result information to the network node 200 device by using the transmission / reception modules 110.
  • the network node device 200 may include a transmission / reception module 210, a processor 220, and a memory 230.
  • the transmit / receive modules 210 may be configured to transmit various signals, data, and information to an external device, and receive various signals, data, and information to the external device.
  • the network node device 200 may be connected to an external device by wire and / or wirelessly.
  • the processor 220 may control operations of the entire network node device 200, and may be configured to perform a function of the network node device 200 to process and process information to be transmitted and received with an external device.
  • the memory 230 may store the computed information and the like for a predetermined time and may be replaced with a component such as a buffer (not shown).
  • the network node device 200 may be configured to support ProSe between a plurality of terminals.
  • the processor 220 of the network node device 200 may be configured to receive ProSe basic information from the terminal device 100 or another network node device using the transmission / reception modules 210.
  • the processor 120 may be configured to transmit ProSe grant indication information to the terminal device 100 using the transmission / reception module 210.
  • the processor 220 may be configured to process signaling for supporting the terminal device 100 to directly perform data path setup with another terminal device.
  • the processor 220 may be configured to receive ProSe performance related result information from the terminal device 100 using both the transmission and reception modules 210.
  • the specific configuration of the terminal device 100 and the network device 200 as described above may be implemented so that the above-described information described in various embodiments of the present invention can be applied independently or two or more embodiments are applied at the same time. Duplicate content is omitted for clarity.
  • the above-described embodiments of the present invention may be implemented through various means. For example, embodiments of the invention may be implemented by hardware, firmware, software, or a combination thereof.
  • the method according to the embodiments of the present invention may include one or more ASICs (Applicat Specific Specific Circuits), DSPs (Digital Signal Processors), DSPDs (Digital Signal Processing Devices), and PLDs. (Programmable Logic Devices), Field Programmable Gate Arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and the like.
  • ASICs Applicat Specific Specific Circuits
  • DSPs Digital Signal Processors
  • DSPDs Digital Signal Processing Devices
  • PLDs Physical Light-Ds
  • FPGAs Field Programmable Gate Arrays
  • processors controllers, microcontrollers, microprocessors, and the like.
  • the method according to the embodiments of the present invention may be implemented in the form of modules, procedures, or functions for performing the functions or operations described above.
  • the software code can be stored in the memory unit and driven by the processor.
  • the memory unit may be located inside or outside the processor, and may exchange data with the processor by various known means.
  • Embodiments of the present invention as described above may be applied to various mobile communication systems.

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Abstract

La présente invention concerne un procédé et un dispositif destinés à établir une communication de groupe en fonction d'un service de proximité (ProSe) dans un système de communication sans fil. Plus particulièrement, le procédé comprend les étapes suivantes consistant à : permettre à un terminal de relais (équipement d'utilisateur de relais, relais d'UE, relais de réseau à UE ProSe) d'enregistrer une communication de groupe dans un nœud de réseau ; et permettre au terminal de relais d'établir la communication de groupe avec le nœud de réseau, la communication de groupe étant configurée pour transmettre un signal en liaison descendante à l'aide d'un service multimédia et de diffusion multimédia (MBMS) si le nombre de terminaux, sauf un terminal relayé (équipement d'utilisateur relayé, UE relayé) parmi une pluralité de terminaux enregistrés dans le nœud de réseau, est inférieur à une valeur de référence.
PCT/KR2014/001675 2013-02-28 2014-02-28 Procédé de communication de groupe et dispositif destinés à fournir un service de proximité WO2014133356A1 (fr)

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US14/767,872 US10484838B2 (en) 2013-02-28 2014-02-28 Group communication method and device for providing proximity service
KR1020157021030A KR20150120348A (ko) 2013-02-28 2014-02-28 근접 서비스 제공을 위한 그룹 통신 방법 및 장치
JP2015560104A JP6142006B2 (ja) 2013-02-28 2014-02-28 近接サービス提供のためのグループ通信方法及び装置
CN201480011297.XA CN105009610B (zh) 2013-02-28 2014-02-28 提供邻近服务的组通信方法和装置

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104812069A (zh) * 2015-05-25 2015-07-29 宇龙计算机通信科技(深圳)有限公司 终端的位置管理方法、寻呼方法、装置和终端
WO2016043566A3 (fr) * 2014-09-21 2016-05-12 엘지전자 주식회사 Procédé de relais d2d de terminal dans un système de communication sans fil, et appareil associé
WO2016126093A1 (fr) * 2015-02-04 2016-08-11 엘지전자 주식회사 Procédé permettant à un terminal de sélectionner un réseau mobile terrestre public dans un système de communication sans fil, et dispositif à cet effet
WO2016154848A1 (fr) * 2015-03-30 2016-10-06 华为技术有限公司 Procédé, dispositif et système de communication pour demander un service de relais
WO2016163809A1 (fr) * 2015-04-10 2016-10-13 삼성전자 주식회사 Procédé et dispositif de communication directe entre des terminaux
WO2016163835A1 (fr) * 2015-04-09 2016-10-13 Lg Electronics Inc. Procédé et appareil de traitement d'entité l2 dans un changement de canal pour effectuer un relais dans un système de communication sans fil
WO2017003161A1 (fr) * 2015-06-29 2017-01-05 Samsung Electronics Co., Ltd. Procédé et appareil pour générer une connexion de réseau de données par paquets d'un équipement d'utilisateur
CN107535011A (zh) * 2015-08-20 2018-01-02 华为技术有限公司 数据处理方法和设备
CN107771398A (zh) * 2015-06-23 2018-03-06 交互数字专利控股公司 用于邻近服务通信的优先级处理
TWI670979B (zh) * 2015-02-02 2019-09-01 南韓商Ｌｇ電子股份有限公司 於無線通訊系統中公共陸地行動網路選擇的方法及裝置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11284337B2 (en) 2015-03-27 2022-03-22 Qualcomm Incorporated Selection of proximity services relay
US9979730B2 (en) * 2015-10-30 2018-05-22 Futurewei Technologies, Inc. System and method for secure provisioning of out-of-network user equipment
EP3379893B1 (fr) * 2015-11-19 2021-02-17 LG Electronics Inc. -1- Procédé de communication directe de dispositif à dispositif dans un système de communication sans fil et dispositif correspondant
US11070631B2 (en) 2016-01-25 2021-07-20 Telefonaktiebolaget Lm Ericsson (Publ) Explicit spatial replay protection
CN108605232B (zh) * 2016-06-30 2021-05-11 华为技术有限公司 一种组通信的方法、设备及系统
JP6688485B2 (ja) * 2016-07-15 2020-04-28 株式会社リコー サービス提供システム、サービス授受システム、サービス提供方法、及びプログラム
EP3319393B1 (fr) * 2016-11-07 2019-08-07 Koninklijke KPN N.V. Établissement d'une connexion entre un équipement d'utilisateur distant, ue, et un réseau de télécommunication par l'intermédiaire d'un ue compatible relais
CN108377496B (zh) * 2016-11-14 2022-12-20 中兴通讯股份有限公司 终端鉴权方法及装置
US10630661B2 (en) * 2017-02-03 2020-04-21 Qualcomm Incorporated Techniques for securely communicating a data packet via at least one relay user equipment
JP6538754B2 (ja) 2017-05-24 2019-07-03 ファナック株式会社 数値制御装置
JP7428358B2 (ja) * 2018-06-12 2024-02-06 日本電気通信システム株式会社 サーバ、通信システム、通信方法及びプログラム
KR102195242B1 (ko) * 2018-08-21 2020-12-24 숭실대학교산학협력단 5g 네트워크 환경에서 m2m 통신을 수행하는 단말의 상태 관리 방법, 이를 수행하기 위한 기록 매체 및 장치
EP4142370A4 (fr) * 2020-08-13 2023-05-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé et dispositif de communication de relais

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110103852A (ko) * 2010-03-15 2011-09-21 엘지전자 주식회사 무선 통신 시스템에서 직접 통신 방법 및 장치
US20110258313A1 (en) * 2010-04-15 2011-10-20 Qualcomm Incorporated Network-assisted peer discovery
US20110268101A1 (en) * 2010-04-15 2011-11-03 Qualcomm Incorporated Transmission and reception of proximity detection signal for peer discovery
US20120083283A1 (en) * 2010-10-04 2012-04-05 Nokia Siemens Networks Oy Feedback mapping for D2D control signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3905701B2 (ja) * 2000-11-24 2007-04-18 株式会社エヌ・ティ・ティ・ドコモ 移動通信システムにおける情報送信制御方法及び基地局
GB2441165B (en) * 2006-08-21 2011-02-09 Ipwireless Inc Cellular communication system, network controller and method for obtaining feedback from subscriber communication units
EP2046090A1 (fr) * 2007-10-02 2009-04-08 Panasonic Corporation Gestion de signalisation de contrôle de session pour services de multidiffusion/radiodiffusion

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110103852A (ko) * 2010-03-15 2011-09-21 엘지전자 주식회사 무선 통신 시스템에서 직접 통신 방법 및 장치
US20110258313A1 (en) * 2010-04-15 2011-10-20 Qualcomm Incorporated Network-assisted peer discovery
US20110268101A1 (en) * 2010-04-15 2011-11-03 Qualcomm Incorporated Transmission and reception of proximity detection signal for peer discovery
US20120083283A1 (en) * 2010-10-04 2012-04-05 Nokia Siemens Networks Oy Feedback mapping for D2D control signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3GPP; TSG SA; Feasibility Study for Proximity Services (ProSe) (Release 12", 3GPP TR 22.803 V2.0.0, 13 December 2012 (2012-12-13), Retrieved from the Internet <URL:http://www.3gpp.org/DynaReport/22803.htm> *

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10327244B2 (en) 2014-09-21 2019-06-18 Lg Electronics Inc. D2D relay method of terminal in wireless communication system, and apparatus therefor
WO2016043566A3 (fr) * 2014-09-21 2016-05-12 엘지전자 주식회사 Procédé de relais d2d de terminal dans un système de communication sans fil, et appareil associé
TWI670979B (zh) * 2015-02-02 2019-09-01 南韓商Ｌｇ電子股份有限公司 於無線通訊系統中公共陸地行動網路選擇的方法及裝置
WO2016126093A1 (fr) * 2015-02-04 2016-08-11 엘지전자 주식회사 Procédé permettant à un terminal de sélectionner un réseau mobile terrestre public dans un système de communication sans fil, et dispositif à cet effet
US10772038B2 (en) 2015-02-04 2020-09-08 Lg Electronics Inc. Method whereby terminal selects PLMN in wireless communication system, and device for same
US10455491B2 (en) 2015-02-04 2019-10-22 Lg Electronics Inc. Method whereby terminal selects PLMN in wireless communication system, and device for same
WO2016154848A1 (fr) * 2015-03-30 2016-10-06 华为技术有限公司 Procédé, dispositif et système de communication pour demander un service de relais
US10771928B2 (en) 2015-03-30 2020-09-08 Huawei Technologies Co., Ltd. Communication method for requesting relay service, device, and system
CN106211808A (zh) * 2015-03-30 2016-12-07 华为技术有限公司 一种请求中继服务的通信方法、设备及系统
CN106211808B (zh) * 2015-03-30 2019-12-24 华为技术有限公司 一种请求中继服务的通信方法、设备及系统
WO2016163835A1 (fr) * 2015-04-09 2016-10-13 Lg Electronics Inc. Procédé et appareil de traitement d'entité l2 dans un changement de canal pour effectuer un relais dans un système de communication sans fil
US10405251B2 (en) 2015-04-09 2019-09-03 Lg Electronics Inc. Method and apparatus for handling L2 entity in channel change for relaying in wireless communication system
WO2016163809A1 (fr) * 2015-04-10 2016-10-13 삼성전자 주식회사 Procédé et dispositif de communication directe entre des terminaux
CN104812069B (zh) * 2015-05-25 2019-01-15 宇龙计算机通信科技(深圳)有限公司 终端的位置管理方法、寻呼方法、装置和终端
CN104812069A (zh) * 2015-05-25 2015-07-29 宇龙计算机通信科技(深圳)有限公司 终端的位置管理方法、寻呼方法、装置和终端
CN107771398A (zh) * 2015-06-23 2018-03-06 交互数字专利控股公司 用于邻近服务通信的优先级处理
US10785623B2 (en) 2015-06-23 2020-09-22 Interdigital Patent Holdings, Inc. Priority handling for prose communications
US11558724B2 (en) 2015-06-23 2023-01-17 Interdigital Patent Holdings, Inc. Priority handling for prose communications
US11856495B2 (en) 2015-06-23 2023-12-26 Interdigital Patent Holdings, Inc. Priority handling for prose communications
US10455406B2 (en) 2015-06-29 2019-10-22 Samsung Electronics Co., Ltd. Method and apparatus for generating packet data network connection of user equipment
WO2017003161A1 (fr) * 2015-06-29 2017-01-05 Samsung Electronics Co., Ltd. Procédé et appareil pour générer une connexion de réseau de données par paquets d'un équipement d'utilisateur
CN107535011A (zh) * 2015-08-20 2018-01-02 华为技术有限公司 数据处理方法和设备
US10826769B2 (en) 2015-08-20 2020-11-03 Huawei Technologies Co., Ltd. Data processing method and device

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JP6142006B2 (ja) 2017-06-07
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KR20150120348A (ko) 2015-10-27
CN105009610A (zh) 2015-10-28

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