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WO2018196755A1 - Services différenciés dans des réseaux de communication existants - Google Patents

Services différenciés dans des réseaux de communication existants Download PDF

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Publication number
WO2018196755A1
WO2018196755A1 PCT/CN2018/084295 CN2018084295W WO2018196755A1 WO 2018196755 A1 WO2018196755 A1 WO 2018196755A1 CN 2018084295 W CN2018084295 W CN 2018084295W WO 2018196755 A1 WO2018196755 A1 WO 2018196755A1
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WIPO (PCT)
Prior art keywords
fwt
wmg
lte
gateway
address
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PCT/CN2018/084295
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English (en)
Inventor
Chunbo Wang
Li Chen
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Telefonaktiebolaget LM Ericsson AB
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Telefonaktiebolaget LM Ericsson AB
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892—Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols

Definitions

  • This invention is directed to methods and apparatus enabling establishing differentiated ser-vices for users via legacy communication networks.
  • the invention is directed to en-abling differentiated services for backhaul communication over Long Term Evolution networks.
  • LTE/4G Long Term Evolution /Fourth Generation
  • LTE/4G Long Term Evolution /Fourth Generation
  • the FWT connects to the LTE network as an LTE terminal, and the FWT also plays the Wi-Fi AP functions, which al-lows several Wi-Fi capable devices connected to it.
  • the Wi-Fi device connects to the FWT via IEEE 802.11 procedure, then uses the FWT as LTE backhaul to access Internet service.
  • the network architecture for using FWT as LTE backhaul is shown in fig. 1.
  • FWT wireless fidelity
  • the FWT provide Wi-Fi AP functions to the devices of the pas-sengers and acts as an LTE UE connecting to the 4G network.
  • the passengers can surf the Internet when taking the metro or train.
  • One problem in the above type of network shown in fig. 1 may further be seen in that the net-work side can only see the identity (IMSI (International Mobile Subscriber Identity) , IP (Internet Protocol) address and MSISDN (Mobile Station International Subscriber Directory Number) ) of the FWT.
  • IMSI International Mobile Subscriber Identity
  • IP Internet Protocol
  • MSISDN Mobile Station International Subscriber Directory Number
  • the real identities (e.g., IMSI, MSISDN) of the UEs using the FWT is not visible or de-tectable to the network operator. All the devices connecting to FWT uses the FWT IP address and Identity (thus share the same identity) to access the Internet service with LTE as the back-haul.
  • This object has been achieved by a method for a system comprising one or more Wi-Fi capable user entities, UE, a fixed wire-less terminal, FWT, offering Wi-Fi access to Wi-Fi capable UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gate-way, PGW, and to a Wi-Fi Mobility Gateway, WMG.
  • the method comprises the steps of the FWT:
  • a WMG IP address (601) is the tunnel end-point and whereby user plane traffic from and to the UE’s is encapsulated inside said GRE tun-nel and relayed between the FWT and the WMG via the LTE network as a backhaul communi-cation, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG,
  • the FWT Upon Wi-Fi capable UEs are connecting to the FWT, the FWT
  • a Fixed wireless terminal, FWT in a system comprising one or more Wi-Fi capable user entities, UE, the FW, offering Wi-Fi access to the UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobility Gateway, WMG.
  • LTE Long Term Evolution
  • eNodeB that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobility Gateway, WMG.
  • the FWT is being adapted for
  • the FWT obtaining an IP address from LTE network for data service
  • a WMG IP address is the tunnel end-point and whereby user plane traffic from and to the UE’s is encapsulated in-side said GRE tunnel and relayed between FWT and WMG via the LTE network as a backhaul communication, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG, upon UE’s are connecting to the FWT,
  • the object has also been accomplished by a Wi-Fi Mobility Gateway, WMG in a system com-prising one or more Wi-Fi capable user entities, UE, a fixed wireless terminal, FWT, offering Wi-Fi access to UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gate-way, PGW, and to the WMG.
  • the WMG comprising processing means being adapted for
  • a system comprising one or more Wi-Fi capable user entities, UE, a fixed wireless terminal, FWT, offering Wi-Fi access to Wi-Fi capable UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gate-way, PGW, and to a Wi-Fi Mobility Gateway, WMG, the FWT:
  • the system is a
  • a WMG IP address is the tunnel end-point and whereby user plane traffic from and to the UE’s is encapsulated inside said GRE tunnel and relayed between the FWT and the WMG via the LTE network as a backhaul communication, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG.
  • the FWT’s LTE data path functions as backhaul and can provide data services to UE’s via Wi-Fi, which UE’s may not support LTE.
  • a trusted Wi-Fi gateway also denoted Wi-Fi Mo-bility Gateway, WMG (e.g. from Ericsson)
  • WMG Wi-Fi Mo-bility Gateway
  • An EoGRE (Ethernet over Generic Routing Encapsulation) tunnel Another option is that the UE shall perform the address allocation procedures for at least one IP address (either IPv4 address or IPv6 prefix) after the default bearer activation if no IPv4 address is allocated during the de-fault bearer activation.
  • the IP address can be obtained by the usage of DHCPv4, in such case the PDN Address shall be set to 0.0.0.0, indicating that the IPv4 PDN address shall be negoti-ated by the UE with DHCPv4 after completion of the Default Bearer Activation procedure in ac-cordance with 3GPP TS 23401.
  • FWT After the FWT is obtaining an IP address from the LTE network (603 (Dst: FWT) ) , FWT sets up a GRE tunnel with the WMG.
  • the WMG IP address is the tunnel end point. All user plane traffic to and from the Wi-Fi UE will be encapsulated inside the GRE tunnel and relayed between FWT and WMG via the LTE network as the backhaul.
  • Wi-Fi capable UEs connect to the FWT via a standard 802.11 interface of the FWT using standard procedures.
  • the FWT is acting as a Wi-Fi AP from an UE point of view.
  • Several UEs can connect to the FWT at the same time.
  • the Wi-Fi capable UEs pass access authentication (501-504, 601-604) to get an Internet service.
  • the access authentication is performed via the known Extensible Authentication Proto-col, EAP, authentication through an operator’s network.
  • EAP payload (502-504, 601-603) is carried by Remote Authentication Dial-In User Service, RADIUS, protocol and transferred as the FWT payload through the LTE user plane between FWT and WMG.
  • the EAP payload is the EAP message that carries EAP protocol for exchange authentication vectors and procedures.
  • the UE obtains an IP address from the WMG through DHCP (701-705; 801-804) .
  • WMG acts as gateway for the UE traffic from/to the Internet. Perform policy control and charging.
  • a control plane protocol stack is as shown in fig. 3B :
  • the UE Upon association with the FWT via an IEEE 802.11 access procedure, the UE initiates an EAP (Extensible Authentication Protocol) procedure to the FWT, the standard 802.11 stack is used between UE and FWT.
  • EAP Extensible Authentication Protocol
  • the EAP payload is carried in RADIUS messages, WMG is acting as the RADIUS proxy and FWT acting as the RADIUS client.
  • the RADIUS messages are trans-ferred transparently through the LTE network as the FWT payload.
  • WMG relays the RADIUS messages between FWT and the operator’s AAA server. Note that the FWT IP address is terminated at WMG.
  • the RADIUS messages exchanged between WMG and AAA use the IP addresses of the WMG and the AAA server.
  • the stack between the UE and the FWT comprises (In the following –top to bottom direction) –EAP; 802.11 MAC; 802.11 PHY.
  • FWT and eNodeB Radius; Data IP (UE) *, IP (FWT) , RDCP, RLC, MAC.
  • eNodeB and SGW+PGW RADIUS (EAP) ; IP (FWT) ; GTP-U; UDP; IP; L2; L1.
  • EAP EAP
  • IP Fidelity
  • GTP-U GTP-U
  • UDP IP
  • L2 L1
  • SGW+PGW and WMG Data; IP (UE) *; Ethernet *; GRE *; IP (FWT) ; L2; L1.
  • the user plane protocol stack is shown in fig. 4 :
  • the standard 802.11 stack is used for user plane traffic
  • an end-to-end GRE tunnel is used to encapsulate the user packets (including the Ethernet layer) .
  • the FWT inserts the Ethernet header and the whole IP packet of the UE into the GRE tunnel, and the GRE packet is transferred from FWT to WMG as the FWT payload transparently through the LTE network.
  • the WMG insert the Ethernet header and the whole IP packet of the UE into the GRE tunnel, and the GRE packet is transferred from WMG to FWT as the FWT pay-load transparently through the LTE network.
  • WMG acts as the gateway for the UE traffic to/from the Internet.
  • the stack comprises:
  • FWT and eNodeB Data; IP (UE) *; Ethernet *; GRE *; IP (FWT) ; PDCP; RLC; MAC.
  • IP (UE) *; Ethernet *; GRE *; IP (FWT) ; GTP-U; UDP; IP; L2; L1.
  • SGW+PGW and WMG Data; IP (UE) *; Ethernet *; GRE *; IP (FWT) ; L2; L1.
  • the signalling flow of the access authentication procedure for the UE is as shown in figs. 5 and 6 :
  • the UE connects to the FWT via 802.11 procedure and triggers EAP authentication.
  • the EAP payload contains the real IMSI of the UE.
  • an EAPoL (Extensible Authenti-cation Protocol (EAP) over LAN) message is transmitted between the UE and the FWT.
  • EAP Extensible Authenti-cation Protocol
  • the FWT uses RADIUS message to carry the EAP payload and the RADIUS messages are ex-changed between the FWT and WMG over LTE user plane as the FWT payload.
  • the RADIUS messages are transparent to the LTE network and handled as the FWT payload.
  • the first RADIUS request also contains the UE MAC address, which can be used by WMG to correlate the UE context later during the DHCP procedure.
  • Radius Request messages 502 –504 are transmitted from FWT to eNodeB, to SGW+PGW and further to WMG.
  • the FWT IP packets (encapsulating RADIUS messages) are routed between PGW and WMG over the Gi interface.
  • the WMG forwards the RADIUS messages 505 to the operator’s AAA server for EAP authentication.
  • the AAA server can fetch the authentication vectors from HSS/HLR (Home Location register) and execute the standard EAP authentication.
  • Fig. 5 shows the following packets with contents:
  • FWT and eNodeB 502 RLC; RDCP; IP (Src: FWT, Dst: Wi-Fi Gateway) ; UDP: RADI-US.
  • IP Session Management Protocol
  • GTP-U IP Session Management Protocol
  • Dst Wi-Fi Gateway
  • IP Session Management Protocol
  • Dst Wi-Fi Gateway
  • the Radius Accept message 601, 602, 603 is transmitted back from WMG to SGW+PGW, to eNodeB and FWT and to UE in EAPoL message 604
  • Fig. 6 shows:
  • IP Wi-Fi Gateway, Dst: FWT
  • UDP User Datagram Protocol
  • IP Session Management Protocol
  • Dst eNodeB 602-Radius Accept: IP (Src: EPG, Dst: eNB) ; GTP-U; IP (Src: Wi-Fi Gateway, Dst: FWT; ) UDP; RADIUS.
  • eNodeB and FWT 603-Radius Accept RLC; RDCP; IP (Src: Wi-Fi Gateway, Dst: FWT) ; UDP; RADIUS.
  • the signalling flow of the DHCP procedure for the UE is as shown in figs. 7 and 8 :
  • DHCP Dynamic Host Configuration Protocol
  • the DHCP packets including the Ethernet layer are encapsulated inside the GRE tunnel be-tween the FWT and WMG 702. And the GRE packets are exchanged between the FWT and WMG as the FWT payload over LTE user plane 702 –704.
  • the GRE packets are transparent to the LTE network and handled as the FWT payload.
  • the Ethernet layer of the DHCP packets inside the GRE tunnel contains the MAC address of the UE, which is used by WMG to correlate UE context which is created during the access authentication.
  • the FWT IP packets (encapsulating GRE payload) 704 are routed between PGW and WMG over the Gi interface.
  • WMG allocates an IP address for the UE and stores the UE IP address in the UE context.
  • Fig. 7 shows the following packets with contents:
  • Ethernet Src: UE MAC
  • IP Src: 0.0.0.0, Dst: 255.255.255.255
  • UDP UDP
  • BOOTP BOOTP
  • FWT and eNodeB 702-DHCP Discovery RLC; RDCP; IP (Src: FWT, Dst: Wi-Fi Gate-way) ; GRE; Ethernet (Src: UE MAC) ; IP (Src: 0.0.0.0, Dst: 255.255.255.255) ; UDP; BOOTP.
  • IP (Src: eNB, Dst: GW) ; GTP-U; IP (Src: FWT, Dst: Wi-Fi Gateway) ; GRE; Ethernet (Src: UE MAC) ; IP (Src: 0.0.0.0, Dst: 255.255.255.255) ; UDP; BOOTP.
  • IP (Src: FWT, Dst: Wi-Fi Gateway) ; GRE Ethernet (Src: UE MAC) ; IP (Src: 0.0.0.0, Dst: 255.255.255.255) ; UDP; BOOTP.
  • DHCP-Offer IP (Src: Wi-Fi Gateway, Dst: FWT) ; GRE; Ethernet (Dst: UE MAC) ; IP (Src: Wi-Fi Gateway, Dst: UE) ; UDP; BOOTP.
  • the DHCP offer is transmitted back 801 –803 to the UE. Subsequently, a DHCP Request/Acknowledge is signalled between the UE and the WMG.
  • Fig. 8 shows the following packets with contents:
  • DHCP-Offer IP (Src: GW, Dst: eNB) ; GTP-U; IP (Src: Wi-Fi Gateway, Dst: FWT) ; GRE; Ethernet (Dst: UE MAC) ; IP (Src: Wi-Fi Gateway, Dst: UE) ; UDP; BOOTP.
  • DHCP-Offer RLC; RDCP; IP (Src: Wi-Fi Gateway, Dst: FWT) ; GRE; Ethernet (Dst: UE MAC) ; IP (Src: Wi-Fi Gateway, Dst: UE) UDP BOOTP.
  • DHCP-Offer Ethernet (Dst: UE MAC) ; IP (Src: Wi-Fi Gateway, Dst: UE) ; UDP; BOOTP.
  • the signalling flow of the UE payload is as shown in figs. 9 and 10:
  • the UE can initiate Internet service via the IP address allocated by WMG.
  • the UE packets 901 are transferred through the 802.11 link layer.
  • the UE packets including the Ethernet layer are encapsulated inside the GRE tunnel.
  • the GRE packets are exchanged between the FWT and WMG as the FWT payload over LTE user plane.
  • the GRE packets are transparent to the LTE network and handled as the FWT payload, 902 –903.
  • Fig. 9 shows the following packets with contents:
  • Ethernet Src: UE MAC
  • IP Src: UE, Dst: Server
  • UDP/TCP UDP/TCP
  • FWT and eNodeB 902 Payload RLC; RDCP; IP (Src: FWT, Dst: Wi-Fi Gateway) ; GRE; Ethernet (Src: UE MAC) ; IP (Src: UE, Dst: Server) ; UDP/TCP; Application.
  • IP (Src: eNB, Dst: EPG) ; GTP-U; IP (Src: FWT, Dst: Wi-Fi Gateway) ; GRE; Ethernet (Src: UE MAC) ; IP (Src: UE, Dst: Server) ; UDP/TCP; Appli-cation.
  • IP (Src: FWT, Dst: Wi-Fi Gateway) ; GRE; Ether-net (Src: UE MAC) ; IP (Src: UE, Dst: Server) ; UDP/TCP; Application.
  • the payload is transmitted back from VMG to the UE via SGW+PGW, eNodeB and FWT in messages 1001 –1004.
  • Fig. 10 shows the following packets with contents:
  • IP Wi-Fi Gateway, Dst: FWT
  • GRE Ethernet
  • IP Src: Server, Dst: UE
  • UDP/TCP Application UDP/TCP Application.
  • IP (Src: EPG, Dst: eNB) ; GTP-U IP (Src: Wi-Fi Gateway, Dst: FWT) ; GRE Ethernet (Dst: UE MAC) ; IP (Src: Server, Dst: UE) ; UDP/TCP; Ap-plication.
  • eNodeB and FWT 1003 -Payload RLC; RDCP; IP (Src: Wi-Fi Gateway, Dst: FWT) ; GRE; Ethernet (Dst: UE MAC) ; IP (Src: Server, Dst: UE) UDP/TCP; Application.
  • an operator can differentiate services for UEs using the FWT for LTE backhaul and apply the individual charging and policy control to the real end user.
  • the operator can utilize the LTE network resource to provide high speed Internet service for non-LTE capable UEs and apply usage control charging for the UEs using LTE backhaul.
  • the UE comprises processing means comprising a processor PCU_UE an external interface IF_UE and a memory, MEM_UE, in which memory instructions are stored and a processor PRC_UE for carrying out the method steps explained above.
  • the UE communicates via the in-terface IF_UE.
  • the interface IF_UE may comprise at least a Wi-Fi module.
  • a FWT comprising processing means comprising a processor PCU_A, an interface IF_A; and a memory, MEM_A. Instructions are stored in the memory for being per-formed by the processor such that the method steps explained above are carried out and sig-nalling is communicated on the interface.
  • the interface IF_E may comprise a Wi-Fi module and a LTE module for communicating with an eNodeB.
  • the eNodeB comprises processing means comprising a processor PCU_E an external LTE in-terface IF_E and a memory, MEM_E, in which memory instructions are stored and a processor PRC_E for carrying out the method steps explained above.
  • the eNodeB communicates via the interface IF_E with the FWT.
  • SGW/PGW comprising processing means comprising a processor PCU_U an interface IF_U; and a memory, MEM_U. Instructions are stored in the memory for being performed by the processor such that the method steps explained above are carried out and such that corresponding signalling is effectuated on the interface.
  • an AAA comprising processing means comprising a proces-sor PCU_S, an interface IF_S; and a memory, MEM_S. Instructions are stored in the memory for being performed by the processor such that the method steps explained above are carried out and signalling is communicated on the interface.
  • a WMG comprising processing means comprising a processor PCU_W an in-terface IF_W; and a memory, MEM_W. Instructions are stored in the memory for being per-formed by the processor such that the method steps explained above are carried out and such that corresponding signalling is effectuated on the interface.
  • a method for a system comprising one or more Wi-Fi capable user entities, UE, a fixed wire-less terminal, FWT, offering Wi-Fi access to Wi-Fi capable UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communica-tion to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobili-ty Gateway, WMG.
  • LTE Long Term Evolution
  • eNodeB that again provides user plane communica-tion to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobili-ty Gateway, WMG.
  • a WMG IP address 601 is the tun-nel end-point and whereby user plane traffic from and to the UE’s is encapsulated inside said GRE tun-nel and relayed between the FWT and the WMG via the LTE network as a backhaul communi-cation 902 -903; 1001 -1003, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG.
  • the FWT Upon Wi-Fi capable UEs are connecting to the FWT, the FWT
  • the UEs may be any suitable UE.
  • the UEs may be any suitable UE.
  • EAP payload may be carried by Remote Authentication Dial-In User Service, RADIUS, protocol 502 –504; 601 -603 and transferred as a FWT payload through the LTE user plane between FWT and WMG.
  • RADIUS Remote Authentication Dial-In User Service
  • the UE may be any suitable UE.
  • the UE may be any suitable UE.
  • a UE MAC address may be derived form a RADIUS request, which MAC address is used by WMG to correlate a UE context during the DHCP procedure.
  • the system can
  • the WMG may be any type of the WMG.
  • -acting 8 as a gateway for the UE traffic from/to the Internet, performing policy control and charging.
  • a fixed wireless terminal in a system comprising one or more Wi-Fi capable user entities, UE, the FW, offering Wi-Fi access to the UE’s, the FWT further communi-cating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobility Gateway, WMG.
  • the FWT being adapted for
  • the FWT obtaining 2 an IP address from LTE network for data service
  • a WMG IP address 601 is the tunnel end-point and whereby user plane traffic from and to the UE’s is encapsulated in-side said GRE tun-nel and relayed between FWT and WMG via the LTE network as a backhaul communication 902 -903; 1001 -1003, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG,upon UE’s are connecting to the FWT,
  • the processing means may comprise a processor PCU_A an interface IF_A and a memory, MEM_A and wherein instructions are stored in the memory for being per-formed by the proces-sor.
  • Wi-Fi Mobility Gateway in a system comprising one or more Wi-Fi capable user entities, UE, a fixed wireless terminal, FWT, offering Wi-Fi access to UE’s, the FWT further communicating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gate-way, PGW, and to the WMG.
  • the WMG is comprising processing means being adapted for
  • -acting 8 as a gateway for the UE traffic from/to the Internet, performing policy control and charging.
  • the above processing means may comprise a processor PCU_W an interface IF_W and a memory, MEM_W and wherein instructions are stored in the memory for being performed by the processor.
  • a system comprising one or more Wi-Fi capable user entities, UE, a fixed wireless terminal, FWT, offering Wi-Fi access to Wi-Fi capable UE’s, the FWT further communi-cating via Long Term Evolution, LTE, access to an eNodeB, that again provides user plane communication to a Serving Gateway, SGW, a Packet Data Network Gateway, PGW, and to a Wi-Fi Mobility Gateway, WMG.
  • a Serving Gateway SGW
  • PGW Packet Data Network Gateway
  • WMG Wi-Fi Mobility Gateway
  • a WMG IP address 601 is the tunnel end-point and whereby user plane traffic from and to the UE’s is encapsulated inside said GRE tun-nel and relayed between the FWT and the WMG via the LTE network as a backhaul communi-cation 902 -903; 1001 -1003, said GRE tunnel traversing the eNodeB, the SGW and the PGW and terminating in the WMG.
  • the FWT Upon UEs are connecting to the FWT, the FWT
  • the above described methods may be carried out by means of instructions of a computer pro-gram or computer program product, the computer program or computer program product being stored in memory.

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Abstract

L'invention concerne un système qui comprend une ou plusieurs entités d'utilisateur prenant en charge le WiFi, UE, un terminal sans fil fixe, FWT, offrant un accès WiFi à des UE prenant en charge le WiFi, le FWT communiquant en outre par l'intermédiaire d'un accès de technologie d'évolution à long terme, LTE, à un eNodeB, qui fournit à son tour une communication de plan d'utilisateur à une passerelle de desserte, SGW, une passerelle de réseau de données par paquets, PGW, et à une passerelle de mobilité WiFi, WMG. FWT se - rattache (1) à un réseau LTE en tant que terminal LTE standard, - obtient (2) une adresse IP à partir d'un réseau LTE pour un service de données, - établit (3) un tunnel GRE avec WMG, une adresse IP WMG (601) étant le point d'extrémité de tunnel et un trafic de plan d'utilisateur à partir et vers les UE étant encapsulé à l'intérieur dudit tunnel GRE et relayé entre FWT et WMG par l'intermédiaire du réseau LTE en tant que communication de liaison terrestre (902 - 903; 1001 -1003), ledit tunnel GRE traversant l'eNodeB, SGW et PGW et se terminant dans WMG. Lorsque des UE sont rattachés à FWT, FWT agit (4) en tant qu'AP WiFi à partir du point de vue de l'UE, une pluralité d'UE peuvent alors se rattacher à FWT en même temps.
PCT/CN2018/084295 2017-04-24 2018-04-24 Services différenciés dans des réseaux de communication existants Ceased WO2018196755A1 (fr)

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Cited By (1)

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CN111092930A (zh) * 2019-11-15 2020-05-01 中盈优创资讯科技有限公司 业务开通方法及装置

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