WO2016080612A1 - Système téléphonique inter-établissements utilisant une leg dans un état de libération de ressources radio lte et procédé téléphonique inter-établissements - Google Patents

Système téléphonique inter-établissements utilisant une leg dans un état de libération de ressources radio lte et procédé téléphonique inter-établissements Download PDF

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Publication number
WO2016080612A1
WO2016080612A1 PCT/KR2015/005579 KR2015005579W WO2016080612A1 WO 2016080612 A1 WO2016080612 A1 WO 2016080612A1 KR 2015005579 W KR2015005579 W KR 2015005579W WO 2016080612 A1 WO2016080612 A1 WO 2016080612A1
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terminal
internal network
lte terminal
packet
lte
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PCT/KR2015/005579
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English (en)
Korean (ko)
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유근출
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콘텔라 주식회사
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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/08—Access security
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/16—WPBX [Wireless Private Branch Exchange]

Definitions

  • the present invention relates to an internal network communication service in an LTE environment, and more particularly, an internal telephone system and an internal telephone method for providing an internal network-based packet communication service by performing paging to an LTE terminal in a state where an LTE radio resource is released. It is about.
  • FIG. 1 is a schematic diagram of a conventional LTE system 100.
  • the packet triggered by the UE 101 is communicated via a public network such as the PDN network 106 or the 3G network 107.
  • a public network such as the PDN network 106 or the 3G network 107.
  • the radio resources constituting the LTE environment are released for efficiency.
  • the LTE-UU wireless communication standard, the S1 interface, and the S11 interface are released as radio resources, and the released radio resources are used by other UEs.
  • FIG. 2A and 2B are schematic flowcharts in which the LTE system 100 of FIG. 1 provides data communication upon release of radio resources.
  • the S5 interface is maintained (1).
  • the SGW 104 receives a packet from the public network through the PGW 105 based on the S5 interface (2).
  • the SGW 104 informs the MME 103 of the initialization for the reception of the data packet and the establishment of the released S11 interface (3).
  • the MME 103 performs a paging procedure through the eNB 102 (4).
  • a service request of the UE 101 is triggered to start setting of released radio resources S1, S11, and the like.
  • the UE 101 receives a packet buffered in the SGW 104 (5).
  • LAG local enterprise gateway
  • packet communication is not a problem in a situation where all radio resources are normally connected.
  • the release of radio resources such as LTE-UU, S1, S11 occurs, the service through the SGW 104 and PGW 105 based on the public network 202 is shown in Figure 2a
  • the MME 103 may perform paging for the UE 101 to transmit the buffered packet.
  • the internal network-based LEG service has no way of communicating packets due to the release state of resources.
  • the present invention has been made under the recognition of the above-described prior art, and provides an LEG for providing in-house data communication using a packet network in an LTE environment to provide a function of an in-house telephone even when a resource release occurs. To provide an in-house telephone method.
  • Another object of the present invention is to enable the LEG to search for information needed for paging using the IP of the UE when resource release occurs, and to perform paging to a receiving UE using an eNB of the retrieved information.
  • the internal telephone system using the LEG in the release state of the LTE radio resource for solving the technical problem, when connected to the LTE (Long Term Evolution) terminal registered in the internal network, the mobile communication core network and the internal network gateway Request call establishment of the LTE terminal, mediate an intranet-based packet communication (internal network communication) between the LTE terminal and the internal network gateway, and request paging to the LTE terminal when disconnecting radio resources.
  • Micro base station for transmitting the; And when receiving a call setup request of the LTE terminal from the micro base station, using the ID of the requested LTE terminal, authenticating whether to allow the internal network communication, and if the internal network communication is authenticated to the LTE terminal.
  • a call is set up with respect to a base station, and the call connection between the internal terminals is relayed through the micro base station, and upon reception of the packet, it is determined whether or not the internal network communication is the destination address of the requested packet, and the determined internal network communication is performed.
  • An internal network that determines whether the radio resource is disconnected and requests paging to the LTE terminal by using paging related information of the LTE terminal which is stored in advance for the determined disconnection.
  • a gateway (LEG: LTE Enterprise Gateway) is included.
  • the intranet telephone system includes an intranet gateway that provides packet communication service between voice terminals or data between intra-company terminals by packet communication with a small base station, wherein the intranet gateway uses the ID of the requested terminal.
  • An internal terminal authentication unit for authenticating with an internal terminal when the terminal is registered as an internal terminal;
  • the bearer is set by setting session IDs and tunneling IDs of the small base station and the internal network gateway with respect to the LTE terminal authenticated as the in-house terminal from the in-house terminal authentication unit.
  • a call setup unit A call connection intermediation unit for receiving a call connection request from a calling party's internal terminal and mediating a call connection with a receiving terminal when the call setup is completed; A packet communication mediation unit for mediating the requested packet communication when the call connection is completed; A packet distribution unit for distributing a packet through internal network communication when the destination address of the requested packet is an address registered in the internal network and distributing the packet through public network communication when the address is not registered in the internal network; And a paging request unit for requesting paging based on paging related information of the LTE terminal for call establishment when an incoming event of the LTE terminal is generated while the call setup is released.
  • the internal network gateway in order to process the paging for the LTE terminal, the paging-related information is stored in advance in the DB when the call is set up, the paging information to refer to the stored paging information It further includes a management unit.
  • the internal network gateway is an address of an internal network server that provides a private branch exchange (PBX) based communication service to a wired or wireless terminal registered in the internal network with respect to the determined destination address of the packet of the internal network communication.
  • PBX private branch exchange
  • a local GW interface unit configured to convert the packet and transmit the packet whose address is converted to the internal network server.
  • the internal network gateway when receiving the connection through the micro base station from the LTE terminal, performs call setup, receives a request to register as an internal terminal from the call-set LTE terminal, the telephone number and location of the received LTE terminal LTE terminal registration unit for storing the terminal information including a.
  • the internal network gateway receives the information of the internal terminal registered in the DB (Data Base), any one of the terminal of the originating and receiving side is the LTE terminal registered in the DB, the other terminal
  • DB Data Base
  • any one of the terminal of the originating and receiving side is the LTE terminal registered in the DB
  • the other terminal In the case of any one of a wired terminal, an LTE terminal, and a Voice Over Internet Protocol (VoIP) terminal registered in the DB, authentication is performed through the internal network communication.
  • DB Data Base
  • any one of the terminal of the originating and receiving side is the LTE terminal registered in the DB
  • the other terminal In the case of any one of a wired terminal, an LTE terminal, and a Voice Over Internet Protocol (VoIP) terminal registered in the DB, authentication is performed through the internal network communication.
  • VoIP Voice Over Internet Protocol
  • the internal network gateway during the call setup, a function for receiving a call setup connection including the ID of the LTE terminal, the session ID and the tunneling ID of the micro-station from the micro base station; Extracting an IP address from call data and determining whether the internal network communication matches the IP address of the LTE terminal; And if it is determined that the internal network communication, transmits the session ID and the tunneling ID of the internal network gateway to the micro base station to perform a call setup.
  • the intranet gateway that provides a packet communication service of voice or data between the in-house terminals by packet communication with a micro base station
  • the internal telephone method for performing the steps of (a) When a call is generated and receives a call setup request of the LTE terminal from the small base station, if the ID is registered as an internal terminal using the ID of the requested terminal Internal network An internal network communication authentication step of authenticating as allowing communication; (b) a call setup step of setting a bearer by setting each session ID and tunneling ID between the micro base station and the internal network gateway for the LTE terminal when authenticated through the internal network communication; (c) a call connection intermediation step of receiving a call connection request from a calling party's internal terminal and mediating a call connection with a receiving terminal when the call setup is completed; (d) a packet communication mediation step of mediating the requested packet communication when the call connection is completed; (e) a packet distribution step
  • a call generated between internal terminals including an LTE terminal is connected through an internal network instead of an external mobile communication network, and paging is performed against an LTE terminal that cannot receive data due to release of radio resources. Processing to recover radio resources and transmit data.
  • 1 is a schematic configuration diagram of a conventional LTE system.
  • FIG. 2A and 2B are schematic flowcharts in which the LTE system of FIG. 1 provides public network based data communication upon release of radio resources.
  • FIG. 3 is a schematic structural diagram of an in-house telephone system according to an embodiment of the present invention.
  • 4A and 4B are schematic flowcharts of a process in which the LEG of FIG. 3 provides internal network communication.
  • 5A and 5B are schematic flowcharts of a process in which the LEG of FIG. 4 stores related information for paging processing when a resource is released.
  • 6A and 6B are schematic flowcharts of a process of releasing resources in the in-house telephone system of FIG. 3.
  • FIG. 7 is a schematic flowchart illustrating a process in which inability to perform internal network communication occurs due to resource release in the internal telephone system of FIG. 6.
  • 8A and 8B are schematic flowcharts of an in-house telephone method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an in-house telephone system 1 according to an embodiment of the present invention.
  • LTE terminal 100 (hereinafter referred to as UE: User Equipment), micro base station 200 (hereinafter referred to as eNB: evolved Node B), internal network gateway 300 ( LEG: LTE Enterprise Gateway), an internal network 400 (Enterprise Network), a mobile communication core network 500 (EPC: Evolved Packet Core-network) and PDN 600 (packet data network).
  • UE User Equipment
  • eNB evolved Node B
  • LEG LTE Enterprise Gateway
  • EPC Evolved Packet Core-network
  • PDN 600 packet data network
  • the LTE terminal 100 is a device that receives an internal network communication service including voice call and data communication, such as a user equipment (UE), a mobile station (MS), a user terminal (UT), a subscriber station (SS), and the like. It may be called in other terms.
  • the LTE terminal 100 uses a mobile communication network to which an LTE network including an Evolved Universal Terrestrial Radio Access Network (EUTRAN) is linked.
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • the LTE terminal 100 may use a mobile communication network in which a WCDMA network including the UTRAN is interworked.
  • conventional mobile phones such as cellular phones, PCS phones, GSM phones, CDMA-2000 phones, WCDMA phones, and the like, and recently used smart phones, tablet PCs, and mobile phones using 4G networks are all LTE terminals 100. Included).
  • the micro base station 200 (hereinafter referred to as eNB) is a node located in a large radius of a macro cell base station or located outside a macro cell base station to provide a specific communication service with femtocell coverage for a small number of subscribers. to be.
  • the micro base station 200 is connected to a mobile communication core network (EPC 500) using a public network such as a digital subscriber line (DSL) and Ethernet installed indoors such as a home or an office. It provides a data communication service to the LTE terminal 100.
  • EPC 500 mobile communication core network
  • DSL digital subscriber line
  • Ethernet installed indoors such as a home or an office. It provides a data communication service to the LTE terminal 100.
  • the micro base station 200 may be used in various terms such as a micro base station, a pico base station, a ubicell base station, and a 3GPP standard term, such as eNodeB.
  • the micro base station 200 is a universal Internet. If it is connected to the core network of the mobile communication system through a line to provide a communication service to the LTE terminal 100 (UE), it should be understood that all of them.
  • the eNB 200 provides an internal network communication service in association with the following LEG 300.
  • the LEG 300 is a gateway that provides the internal network communication service between wired and wireless communication between internal network terminals registered in the internal network 400.
  • the LEG 300 may be implemented as a LE Enterprise Security Gateway (LESG) for security.
  • the internal network communication service provided by the LEG 300 is based on the premise that the LEG 300 has already stored the registration information (eg, a phone number, an IP address, etc.) of the internal terminal in a DB, and the originating or receiving terminal. It is assumed that any one terminal is an LTE terminal registered in the DB, and the other terminal is any one of a wired telephone terminal, an LTE terminal, and a Voip terminal registered in the DB.
  • both the calling terminal and the receiving terminal should be an internal terminal registered in the DB, and at least one internal terminal for performing the internal call is required to be the LTE terminal 100.
  • the LEG 300 may provide an internal network communication service accompanied with Vo-LTE or mVoip service to the internal LTE terminal 100.
  • the internal network communication service may be provided free of charge.
  • the LEG 300 performs a) local call setup, b) local call connection, and c) call relaying functions with respect to the LTE terminal 100 to provide the internal network communication service. Perform sequentially.
  • the call setup is to identify the LTE terminal 100 as a terminal capable of internal calls and to establish a packet communication path.
  • the call connection is a mediation of a call signal through the packet communication path established between the call-set LTE terminal 100 and the counterpart terminal to indicate that a call event has occurred.
  • the call intermediation is to provide a call service by intermediating communication of voice data generated at each in-house terminal when an incoming event occurs at a receiving side by call connection.
  • the LEG 300 provides an in-house network communication service in association with the eNB 200 and restores released resources by performing paging processing of the LTE terminal 100 when releasing resources.
  • the LEG 300 may configure the configuration of the proxy MME 301, the proxy eNB 302, the proxy SGW 303, the packet distributor (packet distributor) 304, and the local gateway interface 305. Include.
  • the proxy MME 301 transmits and receives a signaling message of a call setup of the S1-MME with the eNB 200, stores the information of the message in a DB, and allocates a resource for the proxy SGW 303.
  • the proxy MME 301 may authenticate whether it is an internal network terminal with respect to the UE 100 requesting call setup. If the ID (eg, telephone number, IP address, etc.) of the UE 100 matches information of a pre-registered internal network terminal, the terminal is authenticated as an internal network terminal to receive an internal network communication service.
  • the proxy eNB 302 transfers the information of the signaling message received from the proxy MME 301 to the MME 501, and serves to interwork signaling with the eNB 200 to the MME 501.
  • the packet received from the proxy SGW 303 is also transmitted and received to the SGW 502.
  • the proxy SGW 303 serves to process the user plane function of the eNB 200 and S1-U.
  • the packet splitter 304 When the packet splitter 304 analyzes a packet transmitted and received through the LEG 300 and delivers the packet to the internal network 400, the packet splitter 304 transmits the packet to the internal network GW interface (Local Break Out). 305), otherwise (for example, the PDN network 600), the proxy eNB 302 transmits to the proxy eNB 302.
  • the internal network GW interface Local Break Out
  • the proxy eNB 302 transmits to the proxy eNB 302.
  • the analysis of whether the packet is the internal network communication uses the preset IP of the internal network 400.
  • the internal network IP is preset with a pattern of "192.xx.xx.xx”. If the IP address of the destination has a pattern of "192.xx.xx.xx", it is determined as the communication of the internal network 400, and if it is not a pattern of the internal network IP address, it is determined as the communication of the PDN network 600.
  • a separate DB can be built to determine the local breakout, the built DB stores the information of the local breakout range, the stored information is the IP address band, phone number as identification band information of the internal network 400 It may include a band or an access point name (APN).
  • the built DB stores the information of the local breakout range, the stored information is the IP address band, phone number as identification band information of the internal network 400 It may include a band or an access point name (APN).
  • APN access point name
  • the local GW interface 305 serves to change the header information of the packet through the NAT in order to deliver the received packet to the internal network 400, the packet received from the internal network 400 is eNB 200 In order to be delivered normally, the header information of the packet is changed back into a form receivable by the eNB 200.
  • the internal network 400 is a local network such as a company or home.
  • the internal network 400 may be a local area network (LAN) or the like.
  • This internal network 400 is connected to the external Internet network via Ethernet.
  • the EPC 500 is a mobile communication core network in an LTE network, and the EPC 500 includes various entities. For example, a serving gateway (SGW) 502 for managing mobility, a PDN gateway (PDN 600) that connects the LTE terminal 100 with an external PDN 600 and provides IP routing and forwarding functions. , PGW) 503, and a control plane entity in EUTRAN, such as a mobility management entity (MME) 501 for managing user authentication and mobility of the LTE terminal 100.
  • SGW serving gateway
  • PDN gateway PDN gateway
  • MME mobility management entity
  • PDN 600 includes the Internet, for example.
  • the Internet is where the various services that exist in the TCP / IP protocol and its upper layers: HyperText Transfer Protocol (HTTP), Telnet, File Transfer Protocol (FTP), Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), and SNTP. It is a global open computer network structure that provides Simple Network Management Protocol (NFS), Network File Service (NFS), and Network Information Service (NIS).
  • HTTP HyperText Transfer Protocol
  • Telnet Telnet
  • FTP File Transfer Protocol
  • DNS Domain Name System
  • SMTP Simple Mail Transfer Protocol
  • SNTP Simple Mail Transfer Protocol
  • NFS Network Management Protocol
  • NIS Network Information Service
  • the internal telephone system 100 may further include a private branch exchange such as a Private Branch Exchage (PBX) or an Internet Protocol PBX (IP-PBX) that interworks with the LEG 300 to provide an internal network communication service.
  • PBX Private Branch Exchage
  • IP-PBX Internet Protocol PBX
  • the LEG 300 provides an in-house network communication service to the wired telephone connected through the PBX.
  • LEG (300) provides an internal network communication service to the Voip terminal connected via the IP-PBX.
  • 4A and 4B are schematic flowcharts of a process in which the LEG 300 of FIG. 3 provides in-house network communication.
  • the originating UE 100 registered in the internal network transmits a call to the receiving internal network terminal.
  • a packet encapsulated with GTP is received by the proxy SGW 303 of the LEG 300 via the eNB 200, and the proxy SGW 303 receives the received packet. Transfer to the packet distributor 304 (1).
  • the packet distributor 304 determines the destination IP to determine whether it is an internal network address.
  • the packet distributor 304 forwards the received packet to the local GW interface 305 (2).
  • the local GW interface 305 changes the destination address of the packet so that the received packet is sent to the internal network server 401 (3).
  • the internal network server 401 holds the PBX or IP-PBX to provide call services to internal network terminals. Therefore, the destination address is changed from the IP of the internal network terminal to the IP of the internal network server 401 and processed in the internal network communication.
  • the packet distributor 304 requests delivery of the packet to the S / P GW 402, and the proxy eNB 302 receives the packet (4).
  • the S / P GW 402 is a gateway providing the functions of the SGW 502 and the PGW 503.
  • the packet transmitted from the proxy eNB 302 is transmitted to the receiving side via the S / P GW 402 through an intermediary of a public network server controlling the PDN network 600 (5).
  • 5A and 5B are schematic flowcharts of a process in which the LEG 300 of FIGS. 4A and B stores related information for paging processing when a resource is released.
  • the LEG 300 is required to store related IP information for the paging process based on signaling information of call setup of packets flowing into the internal network communication.
  • the UE 100 initiates an attach request to establish a call to the EPC network 500.
  • the eNB 200 transmits an attach message received from the UE 100 to the LEG 300 (2).
  • the proxy MME 301 of the LEG 300 receives an Initial UE message, which is an S1-MME signaling message, from the eNB 200.
  • the received message contains parameters necessary for paging such as S-TMSI and TAI.
  • the proxy MME 301 stores the received parameter information in the DB (3), and transmits the corresponding message to the MME 501 through the proxy eNB 302 (4).
  • the proxy MME 303 mediates the call connection with respect to the call set LTE terminal 100 by using the communication path set in the interval between the eNB 200 and the LEG (300).
  • the MME 501 allocates resource information of the SGW 502 of the EPC network 500 and transmits initial context setup information to the proxy MME 301 (5).
  • the proxy MME 301 allocates information of the internal proxy SGW 303 mapped to the corresponding context information (6).
  • the proxy MME 301 may transmit terminal information (eg, terminal IP, telephone number, etc.) and location information (eg, eNB information) from the LTE terminal 100 roaming with respect to at least one eNB 200. ) Can be registered, and it can be authenticated whether it is an internal network terminal.
  • terminal information eg, terminal IP, telephone number, etc.
  • location information eg, eNB information
  • a communication path is established between the UE 100 and the eNB 200 to define a bearer, and call setup of the mobile communication core network is completed.
  • NAS information is registered with the MME 501 by the established S1 connection. Registration of NAS information is performed through an authentication and security process, which authenticates subscribers between the UE 100 and the MME 501-HSS, and NAS through the NAS Security Setup procedure between the UE 100 and the MME 501. This process configures NAS Security Keys for signaling message communication.
  • the LTE terminal 100 may access the LTE mobile communication network through the EPC 500 to perform data communication.
  • the UE 100 When the standard-based signaling process is completed, the UE 100 is connected to the EPC network 300 and transmits a packet (7).
  • the proxy SGW 303 analyzes the packet received from the UE 100 through the packet distributor 304, and if the analyzed IP address is an internal network address, performs a local network communication by performing a local break out.
  • the local GW interface 305 stores the source IP information of the received packet in the DB through the proxy MME 301 (305). That is, when the LTE resource is valid, the LEG 300 collects IP information of the in-house terminal and stores it in the DB.
  • the LEG 300 is able to perform paging using the relevant information previously stored in the DB and the source IP of the terminal mapped thereto.
  • the resources released by paging are reset.
  • 6A and 6B are schematic flowcharts of a process of releasing resources in the in-house telephone system 1 of FIG. 3.
  • the UE 100 when the UE 100 receives a data service, it shows a state that the connection to the interface between each node of the LEG 300 and the EPC network 500 is normally connected.
  • the connections of the RRC, S1, S11, S5 are maintained.
  • bearers such as Radio, S1, and S5 are maintained. After this signaling connection is completed, packets through downlink / uplink are transmitted and received through bearers of S1 and S5 corresponding to radio bearers.
  • the eNB 200 releases the LTE radio resource.
  • a procedure of releasing radio resources is shown in the process of the UE 100 communicating with the internal network 400 and the PDN network 600.
  • the packet may be normally transmitted and received, but a case may occur in which a message is not exchanged with each other for a predetermined period of time.
  • the eNB 200 performs a resource release procedure in order to save radio resources.
  • radio resources such as S1 and S11 are released.
  • the release procedure is a procedure provided by the 3GPP specification.
  • Process 5 shows a state in which radio resources are released.
  • the TCP / IP connection is maintained between each application of the UE 100 and the internal network server 401, and only the connection between the S5 bearer resource in the EPC network 600 and the local bearer resource in the internal network 400 is maintained.
  • FIG. 7 is a schematic flowchart of a process in which the in-house network communication is disabled due to resource release in the in-house telephone system 1 of FIGS. 6A and 6B.
  • 8A and 8B are schematic flowcharts of an in-house telephone method according to an embodiment of the present invention.
  • the LEG 300 processes the destination address of the packet as in the process of the internal network service referring to FIGS. 4A and 4B.
  • the related paging information is stored in the DB for paging processing due to the release of resources from the internal network service, and the resource of the resource as shown in Figs. 6A and 6B. After the release occurs, the following processing is performed.
  • the S5 bearer between the SGW 502 and the PGW 503 remains intact, and the local bearer between the LEG 300 and the in-house network server 401 remains intact (1). .
  • the LEG 300 When the internal network server 401 sends a message to request the incoming of the packet, the LEG 300 receives the requested message from the internal network server 401. Proxy SGW 303 then receives the message via local GW interface 305 (2).
  • the packet distributor 304 analyzes the destination IP of the packet of the received message to determine whether it is an internal network IP.
  • the destination IP is the IP of the UE 100 registered in the internal network.
  • the process when the destination IP is not an IP registered in the internal network has already been described above with reference to Figs. 4A and 4B.
  • the proxy SGW 303 determines whether the S1 connection with the eNB 200 is maintained (3). If it is determined that the radio resource S1 is released, the proxy SGW 303 transmits a paging request to the proxy MME 302 with the IP of the UE 100 as the source IP.
  • the proxy MME 302 inquires paging information previously stored in the received source IP from the DB (5). Collection of paging information has already been described with reference to FIGS. 5A and 5B. The proxy MME 302 paging the UE 100 through the eNB 200 based on the retrieved paging information. Meanwhile, in the situation in which the radio resource S1 is maintained, it has already been described with reference to FIGS. 4A and 4B.
  • the UE 100 receives a message of a paging request, initiates a service request, and establishes an S1 connection (7).
  • the UE 100 receives the buffered message data from the proxy SGW 303 (8).
  • the term " ⁇ part" is not used as a term meaning a hardware division of the internal telephone system (1). Therefore, a plurality of components may be integrated into one component, or one component may be divided into a plurality of components.
  • the component may mean a hardware component, but may also mean a component of software. Therefore, it is to be understood that the present invention is not particularly limited by the term "part”.

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Abstract

L'invention concerne un système téléphonique inter-établissements utilisant une passerelle d'entreprise LTE (évolution à long terme) (LEG) dans un état de libération de ressources radio LTE et un procédé téléphonique inter-établissements. Un système téléphonique inter-établissements selon la présente invention comporte: une station de base ultra petite servant à assurer la médiation, lorsqu'elle est connectée à un terminal LTE inscrit dans un réseau inter-établissements, d'une communication par paquets du réseau inter-établissements entre le terminal LTE et une LEG et à envoyer, lorsqu'une liaison de ressources radio est libérée, une demande de radiorecherche au terminal LTE; et une LEG servant à spécifier un numéro, par rapport à la station de base ultra petite, pour un terminal LTE ayant été authentifié à travers le réseau inter-établissements, à assurer la médiation d'une connexion par numéro parmi des terminaux inter-établissements via la station de base ultra petite, à déterminer, pour la communication déterminée du réseau inter-établissements, si la liaison de ressources radio doit être libérée ou non, à demander une radiorecherche to the terminal LTE par rapport à la libération de liaison déterminée en utilisant des informations liées à la radiorecherche d'un terminal LTE pré-stocké, assurant ainsi une communication par paquets basé sur un réseau inter-établissements. La présente invention effectue une radiorecherche, lorsque la ressource radio est libérée, par rapport au terminal LTE, assurant ainsi gratuitement un service de communication en réseau inter-établissements parmi des terminaux inter-établissements.
PCT/KR2015/005579 2014-11-17 2015-06-03 Système téléphonique inter-établissements utilisant une leg dans un état de libération de ressources radio lte et procédé téléphonique inter-établissements WO2016080612A1 (fr)

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Citations (4)

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Publication number Priority date Publication date Assignee Title
KR20100096534A (ko) * 2009-02-24 2010-09-02 삼성전자주식회사 펨토 셀을 포함하는 무선 통신 네트워크에서의 ｌｂｏ 서비스 지원 방법 및 장치
KR20120101567A (ko) * 2008-07-09 2012-09-13 콸콤 인코포레이티드 로컬 네트워크 액세스를 위한 페이징 및 전력 관리 방식들
KR101297783B1 (ko) * 2012-07-26 2013-08-20 콘텔라 주식회사 Ｌｔｅ 사내망 로컬 통신 시스템 및 로컬 통신 방법
KR20130143131A (ko) * 2009-05-08 2013-12-30 퀄컴 인코포레이티드 로컬 ιρ 액세스 패킷들에 대한 페이징

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120101567A (ko) * 2008-07-09 2012-09-13 콸콤 인코포레이티드 로컬 네트워크 액세스를 위한 페이징 및 전력 관리 방식들
KR20100096534A (ko) * 2009-02-24 2010-09-02 삼성전자주식회사 펨토 셀을 포함하는 무선 통신 네트워크에서의 ｌｂｏ 서비스 지원 방법 및 장치
KR20130143131A (ko) * 2009-05-08 2013-12-30 퀄컴 인코포레이티드 로컬 ιρ 액세스 패킷들에 대한 페이징
KR101297783B1 (ko) * 2012-07-26 2013-08-20 콘텔라 주식회사 Ｌｔｅ 사내망 로컬 통신 시스템 및 로컬 통신 방법

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