WO2016148197A1 - Programme, procédé, dispositif et système de communication - Google Patents

Programme, procédé, dispositif et système de communication Download PDF

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Publication number
WO2016148197A1
WO2016148197A1 PCT/JP2016/058344 JP2016058344W WO2016148197A1 WO 2016148197 A1 WO2016148197 A1 WO 2016148197A1 JP 2016058344 W JP2016058344 W JP 2016058344W WO 2016148197 A1 WO2016148197 A1 WO 2016148197A1
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WO
WIPO (PCT)
Prior art keywords
core network
terminal
packet
base station
transfer destination
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PCT/JP2016/058344
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English (en)
Japanese (ja)
Inventor
慎太郎 中野
英男 長谷川
理 石井
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日本電気株式会社
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Publication of WO2016148197A1 publication Critical patent/WO2016148197A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • the present invention is based on a Japanese patent application: Japanese Patent Application No. 2015-053485 (filed on March 17, 2015), and the entire contents of the application are incorporated herein by reference.
  • the present invention relates to a communication system, apparatus, method, and program.
  • a base station In a mobile network, generally, a base station is connected to a mobile core network (also simply referred to as “core network”) possessed by each communication carrier (carrier), and each carrier individually has and uses it.
  • the accessible area in each carrier depends on the base station that each carrier has. For this reason, when a carrier intends to expand a communication area, the carrier needs to individually install a base station.
  • Non-Patent Document 1 As a form of sharing mobile infrastructure between carriers, for example, sharing a base station equipment such as a tower between multiple carriers, communication, etc. in areas or regions where radio waves are difficult to reach, such as tunnels, subway stations, underground malls, etc. It has been practiced to lend steel towers and the like to a plurality of carriers as mobile phone base stations (see, for example, Non-Patent Document 1).
  • FIG. 14 is a diagram schematically showing an example of sharing a tower (based on Chart 15 of Non-Patent Document 1).
  • the antenna 111A attached to the mast tower (steel tower) 112 is connected to the base station 110A of the carrier A via the antenna feeder line 113A
  • the antenna 111B is connected to the carrier B via the antenna feeder line 113B.
  • the base station may be a NodeB of UTRAN (UMTS (Universal Mobile Telecommunications System) Terrestrial Radio Access Network) or an E-UTRAN (Evolved UTRAN) eNodeB (evolved NodeB).
  • the steel tower may be, for example, a cylindrical steel pipe column (cylinder), an iron column (Panza type), a concrete column type, a building rooftop type (Roof Top Tower: RTT type), or the like.
  • the accessible area in each carrier depends on the base station possessed by each carrier, and each carrier needs to install a base station individually when expanding the communication area.
  • equipment sharing between carriers are basically limited to the sharing and sharing of buildings such as steel towers, installation locations, and passive infrastructure such as antennas.
  • An object of the present invention is to provide a communication system and method that can realize cost reduction, for example, by eliminating the need for each carrier to individually establish a base station.
  • the present invention comprises at least one base station, first and second core networks sharing the at least one base station, and a distribution unit, wherein the distribution unit is provided from a terminal.
  • Means for receiving the packet (receiver); Based on terminal information of the terminal, control means (control unit) for specifying whether the transfer destination of the packet is the first core network or the second core network;
  • control means for specifying whether the transfer destination of the packet is the first core network or the second core network;
  • a communication system including means (transmission unit) for transmitting the packet to the first core network or the second core network specified as a transfer destination.
  • At least first and second core networks are connected to at least one base station, and a packet is received from a terminal corresponding to one of the first and second core networks. Is provided to a corresponding core network based on the identification information of the terminal.
  • means for distributing a packet from a terminal to one of the first and second core networks sharing at least one base station, Based on the terminal information of the terminal, the means (distributing unit) receiving the packet from the terminal and the terminal information of the terminal, the transfer destination of the packet is the first core network or the second
  • a control unit control unit
  • a unit transmission unit that transmits the packet to the first core network or the second core network identified as a transfer destination.
  • a sorting device is provided.
  • a process of distributing a packet from a terminal to one of the first and second core networks sharing at least one base station Processing to receive a packet from the terminal; Based on the terminal information of the terminal, a process of specifying whether the transfer destination of the packet is the first core network or the second core network; There is provided a program for causing a computer to execute a process of transmitting the packet to the first core network or the second core network specified as a transfer destination.
  • a computer-readable storage medium semiconductor memory, magnetic / optical disk, etc .: non-transitory computer-readable recording medium in which the program is recorded is provided.
  • (A), (B) is a figure explaining the distribution apparatus of one Embodiment. It is a figure explaining the system configuration example of the 1st Embodiment of this invention. It is a figure explaining the system configuration example of the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention. It is a figure explaining the 2nd Embodiment of this invention.
  • At least first and second core networks (20A, 20B) are physically connected to at least one base station (10).
  • Information identifying the terminal (1A) from the terminal (1A) corresponding to either the first or second core network for example, IMSI (International Mobile Subscriber Identity)
  • a distribution means for example, a distribution device 12 in FIG. 3 that distributes to the corresponding core network based on address information (IP (Internet Protocol) address or MAC (Media Access Control) address) or the like is provided.
  • IP Internet Protocol
  • MAC Media Access Control
  • the base station may include a distribution unit (distribution device) (FIG. 2). Or it is good also as a structure which performs at least one part of the distribution control of the packet from a terminal within a core network (refer FIG. 6).
  • the distribution unit specifies a core network that is a transfer destination of the packet according to terminal identification information of header information of the packet received from the terminal, and The packet may be transferred to the identified core network.
  • a configuration including a storage unit (123 in FIG. 4A) that stores the correspondence between the terminal identification information of the terminal and the core network of the packet transfer destination may be provided. Good.
  • the distribution unit when the terminal establishes a connection with the base station, specifies a core network corresponding to the terminal, and identifies terminal identification information and a connection destination.
  • the correspondence of the core network may be stored in the storage unit (123 in FIG. 4A).
  • FIG. 1 is a diagram illustrating a system configuration of an embodiment of the present invention, and is a diagram for generally explaining the following embodiments.
  • terminals 1A and 1B are carrier X and carrier Y subscriber terminals (for example, terminals into which carrier X and carrier Y version SIM (Subscriber Identity Module) cards are respectively inserted).
  • the base stations 10A and 10B are eNodeBs of, for example, EUTRAN (Evolved Universal Terrestrial Radio) Access Network).
  • EPC Evolved packet Packet Core
  • Each base station 10A, 10B is configured as an infrastructure 11 common to a plurality of carriers X, Y, and is shared (shared) by the plurality of carriers X, Y.
  • the base station which comprises the common infrastructure 11 may be installed by the joint company etc. of the some carrier X and Y, for example.
  • the EPC network 1 (20A) and the EPC network 2 (20B) include entry nodes 21A and 21B, exit nodes 22A and 22B, and databases 23A and 23B, respectively.
  • the entry nodes 21A and 21B are, for example, SGW (Serving Gateway), SGSN (Serving GPRS (General Packet Radio Service) Support Node), and the exit nodes 22A and 22B are, for example, PGW (Packet data network Gateway), GGSN (Gateway GPRS Support Node) ).
  • the databases 23A and 23B store user information, billing information, authentication information, and the like.
  • the databases 23A and 23B may be databases that are referred to by HSS (Home Subscriber Server), PCRF (Policy and Charging Rules), etc. that hold subscriber profile information.
  • the EPC network 1 (20A) and the EPC network 2 (20B) each include an SGW, an MME (Mobility Management Entity), a PGW, a PCRF, and the like.
  • MME Mobility Management Entity
  • MME performs various processes such as terminal mobility management and authentication, and user data transfer path setting. MME also performs user authentication in cooperation with HSS.
  • the SGW transmits / receives user data to / from the base station (eNodeB), and sets / releases a communication path to / from the PGW.
  • the PGW connects to a packet data network (Packet Data Network: PDN) and assigns an IP (Internet Protocol) address (private IP address).
  • PDN Packet Data Network
  • the PCRF is a policy control device that determines policy control and charging control rules such as QoS (Quality) of ⁇ ⁇ Service).
  • the PGW and SGW perform policy control, for example, on a packet basis, based on notification information (policy) from the PCRF.
  • policy control for example, on a packet basis, based on notification information (policy) from the PCRF.
  • the terminal 1A (mobile terminal), for example, subscribes to the carrier X, is connected to the EPC network 1 (core network of the carrier X) via the base station 10A of the common infrastructure 11, and is connected to the Internet 30 from the exit node 22A.
  • the terminal 1B subscribes to the carrier Y, is connected to the EPC network 2 (core network of the carrier Y) via the base station 10B of the common infrastructure 11, and is connected to the Internet 30 from the exit node 22B.
  • the EPC networks 1 and 2 of the carriers X and Y exchange and transfer packets, and user information, billing information, and the like in the EPC networks 1 and 2 may be managed individually for each carrier X and Y. .
  • the base stations 10A and 10B of the common infrastructure 11 use frequency bands assigned to the carrier X and the carrier Y, respectively.
  • the base stations 110A and 110B connected to the antennas 111A and 111B attached to the mast tower 112 are commonly used as a configuration for sharing the existing base stations of the carriers X and Y, respectively. It is good also as a structure integrated as infrastructure.
  • the distribution device is mounted in the base stations 10A and 10B, or is provided in a node between the base stations 10A and 10B and the EPC networks 20A and 20B.
  • the distribution apparatus can receive packets of the terminal 1A corresponding to the EPC network 1 (20A) and the terminal 1B corresponding to the EPC network 2 (20B).
  • the sorting device includes terminal identification information (information (address information) for uniquely identifying a terminal or IMSI (Subscriber Identity Module: Subscriber Identification Module) card) included in a packet received from the terminal. International E-Mobile (Subscriber Identity) etc.), identify the EPC network to be transferred and distribute the packet.
  • terminal identification information information (address information) for uniquely identifying a terminal or IMSI (Subscriber Identity Module: Subscriber Identification Module) card) included in a packet received from the terminal. International E-Mobile (Subscriber Identity) etc.
  • FIG. 2 is a diagram for explaining an example of the operation principle of the embodiment shown in FIG.
  • the distribution device is mounted in the base station 10.
  • the base station 10 corresponds to the common infrastructure 11 of FIG.
  • the EPC networks 1 and 2 are mobile core networks corresponding to different carrier providers, and are configured by SGW, PGW, MME, PCRF, HSS, etc. as described above.
  • Terminal 1A and terminal 1B are carrier X and carrier Y subscriber terminals (for example, terminals into which carrier X and carrier Y version SIM cards are respectively inserted).
  • the base station 10 has storage devices (not shown) that associate the terminals 1A and 1B with the EPC network 1 (20A) and the EPC network 2 (20B), respectively.
  • the terminal 1A corresponds to the EPC network 1 (20A)
  • the terminal 1B corresponds to the EPC network 2 (20B).
  • the packet from the terminal 1A and the packet from the terminal 1B are distributed by the base station 10, and transferred to the corresponding EPC network 1 (20A) or EPC network 2 (20B), and the EPC network 1 (20A).
  • the EPC network 2 (20B) is transferred to the Internet 30 via, for example, the PGW.
  • FIG. 3 is a diagram for explaining the operation principle of another embodiment.
  • terminal 1A and terminal 1B are assumed to be carrier X and carrier Y subscriber terminals (for example, terminals into which carrier X and carrier Y version SIM cards are respectively inserted).
  • the distribution device 12 is mounted as an intermediate node between the base station 10, the EPC network 1 (20A), and the EPC network 2 (20B).
  • the terminal 1A corresponds to the EPC network 1 (20A)
  • the terminal 1B corresponds to the EPC network 2 (20B).
  • the packet from the terminal 1A and the packet from the terminal 1B are transferred to the distribution device 12 via the base station 10, and are distributed by the distribution device 12, and the EPC network 1 (20A) and EPC network corresponding to each of the packets are distributed.
  • 2 (20B) for example, via the PGW (or GGSN) of the egress network in the EPC network 1 (20A) and the EPC network 2 (20B), to the Internet 30.
  • FIG. 4A is a diagram illustrating a typical configuration of the distribution device 12 provided in the base station or between the base station and the EPC network.
  • the sorting device 12 includes a receiving unit 120, a control unit 121, a processing unit 122, a storage unit 123, and an analysis unit 124.
  • FIG. 4B is a diagram schematically illustrating information stored in the storage unit 123.
  • the receiving unit 120 receives a packet from a terminal (for example, a terminal into which a carrier X or carrier Y version SIM card is inserted) via the base station 10.
  • a terminal for example, a terminal into which a carrier X or carrier Y version SIM card is inserted
  • the reception unit 120 receives a packet from a terminal received by the base station 10.
  • the analyzing unit 124 analyzes, for example, a header of the packet received by the receiving unit 120, and extracts terminal identification information (for example, address information) included in the header.
  • the control unit 121 specifies the transfer destination of the packet from the extracted terminal identification information, and controls the processing unit 122 to transfer the packet to the EPC network corresponding to the terminal.
  • the processing unit 122 sets the transmission destination information in the header of the packet transmitted from the terminal side to the transfer destination address so as to transfer it to the ingress node of the corresponding EPC network. Then, the packet is transmitted.
  • the processing unit 122 may be configured by a switch having an input port and an output port connected to each of the EPC1 and EPC2 entry nodes.
  • the storage unit 123 stores the correspondence between terminal identification information (for example, address information) and each EPC network (EPC1 / EPC2) as a table structure.
  • the correspondence between the terminal identification information stored in the storage unit 123 and each EPC network (EPC1 / EPC2) is, for example, an attachment (attachment request) where the terminal establishes a connection with the EPC network via the base station.
  • the attach request signal transmitted to the base station includes IMSI and IMEI (International Mobile Equipment Identity).
  • terminal X is the carrier X that owns EPC1 or EPC2
  • the control unit 121 associates the carrier with terminal identification information (for example, address information), and the storage unit 123 stores the terminal identification information (for example, address information) and the transfer destination. You may make it set correspondence with the EPC network.
  • the HSS database stores IMSI and subscriber contract information (service profile). For this reason, for example, the contract information of the terminal held in the HSS database is acquired from the IMSI information included in the attach request signal transmitted from the terminal at the time of attachment, and the carrier to which the terminal joins is specified.
  • the control unit 121 uses the analysis unit 124 for the packet from the terminal received by the reception unit 120. By searching the storage unit 123 using the extracted source address information (for example, IP address) of the header of the packet as a key, it is specified whether the transfer destination of the packet is EPC1 or EPC2.
  • the extracted source address information for example, IP address
  • FIG. 5 is a diagram illustrating a configuration of the first embodiment.
  • the base stations 10A and 10B constitute a common infrastructure 11 and are shared by the carriers X and Y.
  • terminals 1A and 1B are carrier X and carrier Y subscriber terminals (for example, terminals into which carrier X and carrier Y version SIM cards are respectively inserted).
  • the base station 10A and the base station 10B respectively transmit the packet received from the terminal 1A and the packet received from the terminal 1B out of the EPC network 1 (20A) of the carrier X and the EPC network 2 (20B) of the carrier Y.
  • 1A and terminal 1B are assigned to EPC networks corresponding to carriers to which they are subscribed.
  • the EPC network 1 (20A) and the EPC network 2 (20B) each terminate a bearer between the terminal 1A and the terminal 1B.
  • the base station 10 ⁇ / b> A and the base station 10 ⁇ / b> B are provided with the distribution device described with reference to FIGS. 4 (A) and 4 (B).
  • the base stations 10A and B have storage devices (not shown) that associate the terminals 1A and 1B with the EPC network 1 (20A) and the EPC network 2 (20B), respectively.
  • the base stations 10A and 10B receive the packets from the terminal 1A and the terminal 1B, respectively, and when the distribution destinations of the packets are the EPC network 1 (20A) and the EPC network 2 (20B), the terminals 1A and 10B
  • the packets received from the terminal 1B are transferred to the entry nodes 21A and 21B of the EPC network 1 (20A) and EPC network 2 (20B), respectively, and the exit nodes 22A of the EPC network 1 (20A) and EPC network 2 (20B) 22B (for example, PGW) is transferred to the Internet 30.
  • the base stations 10A and 10B respectively receive the packets received from the terminals 1A and 1B. Transfer to the EPC network 2 (20B) and the entry nodes 21B and 21A of the EPC network 1 (20A), and from the exit nodes 22B and 22A (eg PGW) of the EPC network 2 (20B) and EPC network 1 (20A) to the Internet 30 Transferred.
  • the base stations 10A and 10B send the packets received from the terminal 1A and the terminal 1B to the ingress node of the EPC network 2 (20B). Transfer to 21B.
  • the base stations 10A and 10B send the packets received from the terminal 1A and the terminal 1B to the ingress node of the EPC network 1 (20A). Transfer to 21A.
  • a downstream packet addressed to the terminal 1A or the terminal 1B from a connection partner for example, a node (not shown) connected to the Internet 30 or an IMS (IP Multimedia Subsystem) not shown
  • a connection partner for example, a node (not shown) connected to the Internet 30 or an IMS (IP Multimedia Subsystem) not shown
  • IMS IP Multimedia Subsystem
  • processing such as terminal authentication and billing is performed individually in each EPC network 1 (20A) and EPC network 2 (20B).
  • Carriers X and Y store terminal subscriber information (personal information such as user name and address, contract information), billing information, etc. in databases 23A and 23B of EPC network 1 (20A) and EPC network 2 (20B). Hold. These pieces of information are managed individually for each carrier X, Y.
  • the present embodiment it is possible to share base station equipment among a plurality of carriers and distribute terminals to the corresponding carrier core network. As a result, it is not necessary for each carrier to individually establish a base station, and cost reduction is realized. Further, according to the present embodiment, since the user information and billing information of the terminal can be managed for each carrier, the terminal does not need to be aware of infrastructure sharing between carriers. Note that the terminals 1A and 1B may be SIM-free terminals.
  • FIGS. 13A and 13B are diagrams schematically showing the base station 10 of FIG.
  • the base station 10 includes transmission / reception units 101-1 and 101-2, a multiplexer 104, a signal processing unit 102, and a distribution device 103.
  • the transmission / reception units 101-1 and 101-2 are connected to the antennas 105-1 and 105-2, respectively, perform transmission / reception of signals in the frequency bands of the carrier X and the carrier Y and baseband processing, 1B).
  • Signals from the terminals 1A and 1B are respectively received by the transmission / reception units 101-1 and 101-2, demultiplexed / multiplexed by the multiplexer 104, and processed by the signal processing unit 102.
  • the packet from the signal processing unit 102 is transferred to the corresponding EPC network via the distribution device 12.
  • the signal processing unit 102 is, for example, a user plane (U-plane) between the terminals 1A and 1B, a MAC (Media Access Control) in a control plane (C-Plane), an RLC (Radio Link Control), a PDCP (Packet Data Convergence Protocol) and RRC (Radio Resource Control) of the C-plane protocol stack and other functions are executed (refer to 3GPP (3rd generation partnership project) TS 36.300, etc.).
  • the distribution device 103 has the same configuration as that of the distribution device 12 described with reference to FIG.
  • RRH Remote Radio Head
  • master station base station main body
  • RRH Remote Radio Head
  • master station base station main body
  • RRH is a wireless device having functions such as modulation / demodulation of radio waves and transmission / reception of radio waves from an antenna.
  • the antenna 105 and the transmission / reception unit 101 in FIG. 4A may be a slave station, and the multiplexer 104, the signal processing unit 102, and the distribution device 103 may be mounted on the master station.
  • the signal processing unit 102 of FIG. 13A is configured by two signal processing units 102-1 and 102-2 connected to the transmission / reception units 101-1 and 101-2, respectively.
  • the outputs of the two signal processing units 102-1 and 102-2 are input to the distribution device 103, respectively.
  • the distribution device 103 includes the distribution device 12 described with reference to FIG.
  • the receiving unit 120 of the distribution apparatus 12 receives the outputs of the signal processing units 102-1 and 102-2 of FIG. 13B from two different ports, respectively. It is good also as composition which becomes.
  • the configuration in FIG. 13B corresponds to a configuration in which the distribution device 12 in FIG. 3 is implemented as the distribution device 103 in the base station 10.
  • the first and second antennas 105-1 and 105-2, the first transmission / reception unit 101-1 and the second transmission / reception unit 101-2 are provided for simplicity of explanation.
  • the number of antennas and the like is not limited to such a configuration.
  • a pair of antennas and transmission / reception units may be configured to support a plurality of different carrier frequencies and communication methods (multi-mode compatible).
  • an existing base station may be used as it is by providing the distribution device 12 in FIG.
  • FIG. 6 is a diagram illustrating the configuration of the second embodiment of the present invention.
  • terminal 1A and terminal 1B are carrier X and carrier Y subscriber terminals (for example, terminals into which carrier X and carrier Y version SIM cards are respectively inserted).
  • the EPC network 1 (20A) includes a control device 24A and first and second databases (DB1, DB2) 23A-1 and 23A-2 in addition to the entry node 21A and the exit node 22A.
  • DB1, DB2 first and second databases
  • the EPC network 2 (20B) in addition to the entry node 21B and the exit node 22B, the control device 24B and the first and second databases (DB1, DB2) 23B-1, 23B-2 Is provided.
  • the first database (DB1) 23A-1 (23B-1) has EPC network information (EPC network to which packets from terminals are distributed) corresponding to the terminal identification information.
  • EPC network information EPC network to which packets from terminals are distributed
  • the EPC network 2 with the terminal identification information (address) is stored.
  • the information in the first database (DB1) 23A-1 (23B-1) corresponds to the table structure of FIG. 4B, for example.
  • main EPC networks respectively corresponding to the base station 10A and the base station 10B are set in advance.
  • the main EPC network of the base station 10A is the EPC network 1 (20A)
  • the main EPC network of the base station 10B is the EPC network 2 (20B).
  • the second database (DB2) 23A-2 (23B-2) has detailed information such as user information corresponding to the terminal identification information.
  • the second database (DB2) 23A-2 stores only information related to terminals corresponding to the EPC network 1 (20A).
  • the second database (DB2) 23B-2 stores only information related to terminals corresponding to the EPC network 2 (20B).
  • 7 to 10 are diagrams for explaining the operation of the second embodiment. 7 to 10, the configuration of the EPC network 2 (20B) is omitted.
  • the base station 10A when the access from the terminal 1A is first (for example, when an attachment request is received from the terminal 1A (for the RRC (Radio Resource Control) Connection Request from the terminal 1A), the base station 10A performs the RRC.
  • the base station 10A transmits a connection setup message to the terminal 1A and receives the RRC connection setup message from the terminal 1A in the RRC connection state (the base station 10A)
  • the base station 10A is the EPC network 1 (the main EPC network of the base station 10A).
  • the bucket may be an S1AP message (Initial UE message) transmitted from the base station 10A to the MME of the EPC network 1 (20A), an RRC Connection E setup message, and an Initial UE message.
  • the MME is a control device 24A such as the IMSI of the terminal 1A. You may make it forward to.
  • the control device 24A of the EPC network 1 (20A) refers to the correspondence between the terminal identification information (eg, IMSI) in the first database (DB1) 23A-1 and the EPC network, and identifies the terminal of the packet received from the base station 10A.
  • the EPC network to which the packet is transferred is specified according to the information (IMSI included in the attach request).
  • the correspondence between the terminal identification information (for example, IMSI) in the first database (DB1) 23A-1 and the EPC network determines the packet header of the packet distribution from the terminal 1A and determines the packet header. Based on the address information (source IP address or the like), the address of the terminal 1A and the EPC network of the distribution destination may be stored in a storage unit (not shown).
  • the packet from the terminal 1A is, for example, address information in the header of the packet. Based on this, it is transferred to the entry node of the distribution destination EPC network.
  • the original distribution destination of the packet from the terminal 1A is the EPC network 2 (20B).
  • the control device 24A of the EPC network 1 (20A) transfers the packet from the terminal 1A to the base station 10A to the EPC network 2 (20B) that is the transfer destination (distribution destination) of the packet. (See FIG. 9).
  • the base station 10A temporarily holds the packet transferred to the control device 24A of the EPC network 1 (20A) in preparation for switching of the packet transfer destination, and controls the EPC network 1 (20A).
  • the base station 10A may transfer the temporarily held packet to the EPC network 2 (20B).
  • the control device 24A of the EPC network 1 (20A) When it is not necessary for the control device 24A of the EPC network 1 (20A) to transfer the packet from the terminal 1A to the EPC network 2 (20B) (when the distribution destination EPC network is the EPC network 1 (20A))
  • the base station 10A may be notified of the fact, and when the base station 10A receives the notification, the temporarily held packet may be discarded.
  • the control device 24A of the EPC network 1 (20A) transmits the packet transferred from the base station 10A to the EPC network 1 (20A) to the node (ingress node 21A) in the EPC network 1 (20A). It may be configured to instruct the station 10A to send it back.
  • the base station 10A does not need to hold the packet transferred to the control device 24A of the EPC network 1 (20A).
  • the control device 24A of the EPC network 1 (20A) adds identification information for identifying the EPC network 2 (20B) that is a distribution destination of the packet to the packet to be sent back to the base station 10A, and instructs to send it back. Also good.
  • the control device 24A If the packet corresponds to the EPC network 1 (20A) as a result of referring to the first database (DB1) 23A-1 by the control device 24A of the EPC network 1 (20A), the control device 24A The packet is instructed to be transferred to a subsequent node in the EPC network 1 (20A) (see (2) in FIG. 8).
  • the base station 10A sends the packet sent back from the ingress node 21A of the EPC network 1 (20A) to the EPC network 2 ( 20B) (see (1) in FIG. 10).
  • the base station 10A holds the packet transferred to the EPC network 1 (20A), and holds it when receiving a transfer instruction to the EPC network 2 (20B) from the control device 24A of the EPC network 1 (20A).
  • the packet may be transferred.
  • the MME of the EPC network 2 (20B) uses HSS to authenticate the terminal 1A.
  • the SGW is associated with the SGW of the terminal 1A-base station 10A-EPC network 2 (20B) and the terminal 1A.
  • a bearer is stretched between PGW.
  • the base station 10A transfers the packet received from the terminal 1A to the EPC network 2 (20B) to which the packet is distributed based on the address information in the packet header ((2) in FIG. 10).
  • distribution control of packets from the terminal is performed in the EPC network (control device) in cooperation with the base station, and if the received packet is not distributed to the base station, the packet is sent to the base station. Is returned, the transfer destination EPC network is changed, and the received packet is transferred to the subsequent stage if the own EPC network is the distribution target.
  • the packet from a terminal is a target for distribution to the local EPC network (when hit)
  • the packet has already been transferred to the local EPC network, so that the distribution process is unnecessary and the transfer process is accelerated.
  • FIG. 11A is a diagram for explaining a third embodiment of the present invention.
  • a network is shared by a carrier X and a mobile virtual network operator (MVNO) carrier Z.
  • Carrier X is an MNO (Mobile Network Operator) carrier with communication facilities.
  • the carrier Z is assumed to be an MVNO (Mobile Virtual Network Operator) carrier that receives a communication infrastructure loan from the carrier X.
  • MNO Mobile Network Operator
  • MVNO Mobile Virtual Network Operator
  • the EPC network 1-1 (25A-1) and EPC network 1-2 (25A-2) may be physically divided or virtually divided by virtualized vEPC (virtual EPC). Also good.
  • the EPC network (vEPC) 1-1 (25A-1) is a carrier X
  • the EPC network (vEPC) 1-2 (25A-2) is a network of MVNO carrier Z.
  • the database (DB1) 23A holds a correspondence relationship between the EPC network including the MVNO carrier and the terminal identification information.
  • FIG. 11B is a diagram schematically illustrating an example of information held in the database (DB1) 23A.
  • the transfer destination of the packet from the subscriber terminal A of the MNO carrier X is transferred to the EPC 1-1 in the EPC network 1 (20A) of the MNO carrier X.
  • the transfer destination of the packet from the subscriber terminal B of the MVNO carrier Z is the EPC 1-2 in the EPC network 1 (20A) of the MVNO carrier Z, -
  • the packet destination from the subscriber terminal C of the MNO carrier Y is the EPC network 2 of the MNO carrier Y (MNO carrier Y) Is stored in a table format.
  • the control device 24A of the EPC network 1 (20A) uses the EPC network from the terminal via the base station 10A based on the correspondence between the terminal identification information (for example, IMSI) in the database 23A and the EPC network.
  • the distribution destination of the packet transferred to 1 (20A) is the EPC network 2 (20B)
  • the packet is sent back to the base station 10A, and the packet is transferred from the base station 10A to the EPC network 2 (20B).
  • the control device 24A controls to transfer the packet received from the terminal to the corresponding EPC network C when the transfer destination is the EPC network 1-1 or EPC network 1-2.
  • the EPCs 1-1 and 1-2 may all be MVNO carrier networks.
  • the EPC network 2 (20B) may be a network dedicated to the MNO carrier Y, or may be configured to share the network with the MVNO carrier, like the EPC network 1 (20A).
  • FIG. 12 is a diagram for explaining a fourth embodiment of the present invention.
  • FIG. 12 shows an embodiment corresponding to FIG.
  • distribution devices 12C and 12D described with reference to FIG. 4 are provided between base stations 10C and 10D and EPC network 1 (20A) and EPC network 2 (20B).
  • the distribution devices 12C and 12D receive the packets transferred from the base stations 10C and 10D (packets from the terminals 1A and 1B), determine the distribution destination EPC network corresponding to the packets, Transfer to the destination EPC network.
  • the base station 10C transmits a packet from the terminal 1A to, for example, the EPC core network 1 (20A), which is the main EPC network, and the distribution device 12C captures the packet and distributes the packet. Is the EPC core network 2 (20B), the destination information in the header of the packet (frame) is rewritten and the path is switched so that the packet is transferred to the entry node of the EPC core network 2 (20B).
  • the distribution device 12C transfers the packet as it is to the EPC core network 1 (20A).
  • an existing base station can be used as it is as a base station.
  • the virtualization of the base station is not particularly described.
  • the functions and processes of a plurality of base stations may be virtualized by software processing.
  • the functions and processes of a plurality of base stations may be virtualized by software processing.
  • a communication system comprising:
  • the sorting means is A storage unit that stores the identification information of the terminal in association with whether the transfer destination of the packet from the terminal is the first core network or the second core network; Means (unit) for analyzing the packet received from the terminal and extracting identification information of the terminal; With The control means (control unit) searches the storage unit based on the identification information of the terminal, and the transfer destination of the packet is the first core network or the second core network.
  • the communication system according to supplementary note 1, wherein the communication system is specified.
  • the distribution means specifies whether the transfer destination of the packet from the terminal is the first core network or the second core network during the attach process of the terminal,
  • the communication system according to claim 2 further comprising means (unit) for setting the correspondence between the identification information of the terminal and a core network that is a transfer destination of the packet from the terminal in the storage unit.
  • Appendix 4 The communication system according to any one of appendices 1 to 3, wherein the distribution unit (apparatus) is provided in the base station or in a node between the core network and the base station. .
  • At least the first core network is A storage unit for storing identification information of the terminal; A control device; With The controller is For the packet from the terminal transferred from the base station to the first core network, whether or not the packet is a packet whose destination is the first core network with reference to the storage unit Determine whether When the packet from the terminal is a packet whose transfer destination is the first core network, the packet from the terminal is transferred to a subsequent node in the first core network, If the packet from the terminal is not a packet whose transfer destination is the first core network, the packet from the terminal is sent back to the base station, and the second core network corresponding to the packet from the terminal Alternatively, the communication system according to any one of appendices 1 to 4, wherein the communication is instructed to be transferred to another core network.
  • Appendix 6 The communication according to appendix 5, wherein the base station that has received the packet return from the control device forwards the next packet from the terminal to the second or other core network. system.
  • At least the first core network is A storage unit for storing identification information of the terminal; A control device; With The controller is For the packet from the terminal transferred from the base station to the first core network, whether or not the packet is a packet whose destination is the first core network with reference to the storage unit Determine whether When the packet from the terminal is not a packet having the first core network as a transfer destination, the packet from the terminal is transferred to the second core network that is the transfer destination or another packet to the base station. Instructed to transfer to the core network, Note that when the packet from the terminal is a packet whose destination is the first core network, the packet from the terminal is forwarded to a subsequent node in the first core network.
  • the communication system according to any one of 1 to 4.
  • (Appendix 9) Sharing at least one base station in the first and second core networks; Receiving a packet from a terminal, and identifying whether the transfer destination of the packet is the first core network or the second core network based on the terminal information of the terminal; The communication method, comprising: transmitting the packet to the first core network or the second core network specified as a transfer destination.
  • Appendix 12 The communication method according to any one of appendices 9 to 11, wherein the distribution is performed at the base station or a node between the core network and the base station.
  • the first core network refers to the storage unit for the packet from the terminal transferred from the base station to the first core network, and the packet transfers the first core network.
  • the first core network is: For the packet from the terminal transferred from the base station to the first core network, whether the packet is a packet whose destination is the first core network with reference to the storage unit Determine whether or not When the packet from the terminal is not a packet having the first core network as a transfer destination, the packet from the terminal is transferred to the second core network that is the transfer destination or another packet to the base station. Instructed to transfer to the core network, Note that when the packet from the terminal is a packet whose transfer destination is the first core network, the packet from the terminal is transferred to a subsequent node in the first core network.
  • the communication method according to any one of 9 to 12.
  • Appendix 16 Any one of appendices 9 to 15, wherein at least one of the first core network and the second core network includes a network of a virtual communication carrier (MVNO carrier) as at least a part of the core network.
  • MVNO carrier virtual communication carrier
  • a sorting device characterized by comprising:
  • Appendix 18 A storage unit for storing the identification information of the terminal in association with whether the packet transfer destination from the terminal is the first core network or the second core network;
  • the control means extracts the identification information of the terminal from the header of the packet received from the terminal, searches the storage unit based on the identification information of the terminal, and forwards the packet received from the terminal 18.
  • the distribution device according to appendix 17, wherein the distribution device identifies whether it is the first core network or the second core network.
  • Appendix 20 The distribution device according to any one of appendices 17 to 19, A distribution device, which is arranged in either the base station or a node between the core network and the base station.
  • (Appendix 21) As a process of distributing the packet from the terminal to either the first core network or the second core network sharing at least one base station, Processing to receive a packet from the terminal; Based on the terminal information of the terminal, a process of specifying whether the transfer destination of the packet is the first core network or the second core network; A process of transmitting the packet to the first core network or the second core network identified as a transfer destination; A program that causes a computer to execute.
  • a base station apparatus shared by at least the first core network and the second core network, A distribution unit (distribution device) that distributes packets from the terminal to at least one of the first core network and the second core network;
  • the sorting means Sorting device Means (receiver) for receiving a packet from the terminal; Based on terminal information of the terminal, control means (control unit) for specifying whether the transfer destination of the packet is the first core network or the second core network; And a means for transmitting the packet from the terminal to the first core network or the second core network specified as a transfer destination.

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

Abstract

L'invention concerne la possibilité de réduire des coûts tout en éliminant le besoin d'établissement individuel d'une station de base pour chaque porteuse. L'invention concerne un système de communication qui comprend : au moins une station de base ; des premier et second réseaux centraux qui partagent la au moins une station de base ; et un dispositif de distribution. Le dispositif de distribution reçoit un paquet en provenance d'un terminal. Sur la base des informations de terminal concernant le terminal, la destination d'expédition du paquet est spécifiée comme étant le premier réseau central ou le second réseau central, puis le paquet est transmis au premier réseau central ou au second réseau central qui a été spécifié comme destination d'expédition.
PCT/JP2016/058344 2015-03-17 2016-03-16 Programme, procédé, dispositif et système de communication WO2016148197A1 (fr)

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JP2018061100A (ja) * 2016-10-04 2018-04-12 日本電気株式会社 ゲートウェイ装置、通信方法、及びプログラム
WO2022208823A1 (fr) * 2021-03-31 2022-10-06 ソフトバンク株式会社 Dispositif relais, procédé de relais et support d'enregistrement
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JP7415799B2 (ja) 2020-05-28 2024-01-17 富士フイルムビジネスイノベーション株式会社 無線基地局装置、無線基地局プログラム、及び無線通信システム
WO2024069868A1 (fr) * 2022-09-29 2024-04-04 Rakuten Symphony, Inc. Système, procédé et support lisible par ordinateur non transitoire pour un nœud radio de réseau activé par internet

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018061100A (ja) * 2016-10-04 2018-04-12 日本電気株式会社 ゲートウェイ装置、通信方法、及びプログラム
WO2018066402A1 (fr) * 2016-10-04 2018-04-12 日本電気株式会社 Appareil passerelle, procédé de communication, et support non transitoire lisible par ordinateur contenant un programme
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JP7415799B2 (ja) 2020-05-28 2024-01-17 富士フイルムビジネスイノベーション株式会社 無線基地局装置、無線基地局プログラム、及び無線通信システム
WO2022208823A1 (fr) * 2021-03-31 2022-10-06 ソフトバンク株式会社 Dispositif relais, procédé de relais et support d'enregistrement
WO2024069868A1 (fr) * 2022-09-29 2024-04-04 Rakuten Symphony, Inc. Système, procédé et support lisible par ordinateur non transitoire pour un nœud radio de réseau activé par internet
CN115811724A (zh) * 2022-11-22 2023-03-17 中国联合网络通信集团有限公司 数据传输方法、装置、电子设备及存储介质
CN115811724B (zh) * 2022-11-22 2024-04-09 中国联合网络通信集团有限公司 数据传输方法、装置、电子设备及存储介质

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