WO2012023420A1 - Procédé de communication mobile et nœud de commande de politique - Google Patents

Procédé de communication mobile et nœud de commande de politique Download PDF

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Publication number
WO2012023420A1
WO2012023420A1 PCT/JP2011/067585 JP2011067585W WO2012023420A1 WO 2012023420 A1 WO2012023420 A1 WO 2012023420A1 JP 2011067585 W JP2011067585 W JP 2011067585W WO 2012023420 A1 WO2012023420 A1 WO 2012023420A1
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WIPO (PCT)
Prior art keywords
control node
signal
cscf
policy control
location information
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PCT/JP2011/067585
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English (en)
Japanese (ja)
Inventor
和仁 徳永
直政 吉田
西田　克利
崇 森田
正隆 池田
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株式会社エヌ・ティ・ティ・ドコモ
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Publication of WO2012023420A1 publication Critical patent/WO2012023420A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/57—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP for integrated multimedia messaging subsystem [IMS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/63—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP based on the content carried by the session initiation protocol [SIP] messages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/66—Policy and charging system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/208—IMS, i.e. Integrated Multimedia messaging Subsystem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Definitions

  • the present invention relates to a mobile communication method and policy control node for providing information such as Cell ID from an EPC network to an IMS base.
  • IMS IP Multimedia Subsystem
  • 3GPP 3 rd Generation Partnership Project
  • IMS IP Multimedia Subsystem
  • IP-CAN IP-CAN
  • IMS IP Multimedia Subsystem
  • a mobile communication system using this IMS is defined in Non-Patent Document 1.
  • FIG. 1 is a diagram showing a network architecture when an access network is an LTE (Long Term Evolution) network in IMS.
  • an IP mobile transmission network is defined as an EPC (Evolved Packet Core) network
  • a service control network is defined as an IMS.
  • the eNodeB which is the base station is accommodated by MME (Mobility Management Entity) and S-GW (Serving-Gateway).
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • the MME has an interface with a mobile terminal UE (User Equipment) located in the radio zone of the LTE access system, and performs mobility management of the mobile terminal UE, authentication of the mobile terminal, and setting control of an IP transmission path with the mobile terminal.
  • the S-GW performs the transmission control of the IP packets based on a command MME.
  • P-GW Packet Data Network
  • PCRF Policy and Charging Rules Function
  • the P-GW has a connection point with a PDN such as the Internet or IMS, and receives all IP packets from the PDN to the mobile terminal UE.
  • the PCRF determines an IP packet transmission policy such as QoS (Quality of Service) and a charging method for performing transmission quality control in the P-GW and S-GW.
  • QoS Quality of Service
  • IMS mainly includes a session control function (CSCF) and an application service control function (AS).
  • the IMS also includes a user information storage function (HSS).
  • CSCF session control function
  • AS application service control function
  • HSS user information storage function
  • CSCF Call Session Control Function
  • Session control is performed by setting and releasing communication sessions between mobile terminals and selecting AS according to service conditions. It transfers an SIP (Session Initiation protocol) signal which is a protocol.
  • SIP Session Initiation protocol
  • the CSCF is divided into three functional elements: P-CSCF (Proxy-CSCF), S-CSCF (Serving-CSCF), and I-CSCF (Interogating-CSCF).
  • the HSS Home Subscriber Server
  • C-Plane user data
  • U-Plane control signal
  • position information such as Cell ID is defined.
  • the Cell ID is an area identifier obtained by further subdividing the coverage area of one radio base station, and is specified as E-CGI (Enhanced Cell Global Identity) in LTE.
  • the location information includes an area code and a Tracking Area ID. This area code is held in the MME or eNodeB, and the Tracking Area ID is held in the MME.
  • FIG. 2 is a sequence diagram for explaining attach control from the LTE access system.
  • the mobile terminal UE makes a connection request to the MME via the eNodeB.
  • the eNodeB sends the Cell ID to the MME.
  • the mobile terminal UE performs the security procedures, such as authentication and ciphering.
  • the MME sends a location registration request message to the HSS.
  • MME performs the session creation request to the S-GW, P-GW.
  • the MME sends the Cell ID to the S-GW.
  • the Cell ID is sent to the PCRF via the P-GW.
  • the Cell ID is held in the MME, S-GW, and PCRF.
  • IMS can acquire the Cell ID from the mobile terminal, but cannot acquire it from the access network. However, it is desirable to be able to acquire the cell ID of the mobile terminal from the access network from the viewpoint of security such as tampering.
  • a trusted Cell ID there are elements that can be trusted when charging, a location specifying element when intercepting communications, an element for identifying an appropriate connection destination when making an emergency call, and other IMS. There are elements when providing services. From this point of view, it is desirable that the cell ID of the mobile terminal can be acquired from the access network.
  • the present invention has been made in view of this point, and an object thereof is to provide a mobile communication method and a policy control node that provide location information such as a Cell ID from an EPC network to an IMS base.
  • the mobile communication method of the present invention includes a step of establishing a bearer via a mobility management node, a step of acquiring location information of the mobile terminal from the radio base station or the mobility management node, and transmitting the location information to a policy control node; And the step of transmitting the location information from the policy control node to a call control node.
  • the policy control node of the present invention is a policy control node that holds location information of a mobile terminal, and is acquired from the radio base station or the mobility management node after a bearer is established via the mobility management node. holding the position information, and transmits the position information to the call control node.
  • the latest location information that is acquired when a bearer is established, and the latest location information where the user is located when a call is made or received is notified on the IMS base. , it is possible to deal with reliable location information in IMS.
  • FIG. 1 It is a figure which shows a network architecture in case an access network is an LTE network in IMS. It is a sequence diagram for explaining attaching control from the LTE access system. It is a figure for demonstrating the mobile communication method of this invention. It illustrates PMIP sequence a (Cell ID acquisition) according to the mobile communication method of the present invention. It is a diagram showing a GTP sequence (Cell ID acquisition) according to the mobile communication method of the present invention. It is a figure which shows the PMIP sequence (Cell ID acquisition) which requests acquisition from P-CSCF concerning the mobile communication method of this invention. It is a figure which shows the GTP sequence (Cell ID acquisition) which requests
  • PMIP sequence a area code acquisition
  • PMIP sequence area code acquisition
  • PMIP sequence area code acquisition
  • PMIP sequence Tracking Area ID acquisition
  • PMIP sequence Tracking Area ID acquisition
  • FIG. 1 is a diagram showing a network architecture when an access network is an LTE network in IMS according to an embodiment of the present invention.
  • the 3GPP international standard defines the IP mobile transmission network as an EPC network and the service control network as an IMS.
  • the eNodeB that is the base station is accommodated by the MME and the S-GW.
  • the mobility management node MME has an interface with the mobile terminal UE located in the radio zone of the LTE access system, and performs mobility management of the mobile terminal UE, authentication of the mobile terminal, and setting control of an IP transmission path with the mobile terminal.
  • the MME performs mobility management and authentication of the mobile terminal UE in cooperation with the HSS.
  • the MME performs setting of a transmission path for IP packets transmitted and received by the mobile terminal UE for the S-GW and the eNodeB.
  • the gateway device S-GW performs IP packet transmission control based on the MME command.
  • the S-GW controls the transmission quality of the IP packet according to the QoS information notified from the PCRF.
  • the P-GW has a connection point with a PDN such as the Internet or IMS, and receives all IP packets from the PDN to the mobile terminal UE.
  • the P-GW transmits the received IP packet for the mobile terminal UE to the S-GW or the like. Further, when transmitting the IP packet, the gateway device P-GW controls the transmission quality of the IP packet according to the QoS information notified from the PCRF.
  • IP packet transmission policies such as QoS (Quality of Service) and charging method for controlling transmission quality in P-GW and S-GW.
  • the IP packet transmission policy is determined based on service application information requested from the mobile terminal UE, user service contract information, and the like notified from the IMS.
  • IMS mainly includes a session control function (CSCF) and an application service control function (AS).
  • the IMS also includes a user information storage function (HSS).
  • CSCF session control function
  • AS application service control function
  • HSS user information storage function
  • the call control node CSCF is a function that performs session control, which is the core of control of the service control network, and is a session control protocol that sets and releases a communication session between mobile terminals and selects an AS according to service conditions. Transfer SIP signal.
  • the call control node CSCF is divided into three functional elements: P-CSCF, S-CSCF, and I-CSCF.
  • the call control node CSCF also includes E-CSCF.
  • the P-CSCF is deployed at a connection point with the IP mobile transmission network, is connected to the P-GW of the IP mobile transmission network, and relays SIP signals between the S-CSCF and I-CSCF and the mobile terminal UE.
  • the P-CSCF confirms the validity of the SIP signal sent from the mobile terminal UE, and adds information (such as charging information) necessary for session control to the S-CSCF.
  • information that should not be transmitted to the mobile terminal UE (such as a caller ID when receiving an incoming call with no number notification) is deleted. Further, the P-CSCF notifies the PCRF of application type information necessary for performing QoS control by IMS.
  • the S-CSCF performs session control and authentication using user information obtained from the HSS.
  • the S-CSCF receives a session activation signal from the mobile terminal UE, the S-CSCF selects an AS corresponding to the service according to the information of the initial filter criteria and relays the SIP signal.
  • the I-CSCF conceals the S-CSCF from other networks and relays SIP signals between the other networks and the S-CSCF as a gateway to the IMS.
  • the I-CSCF selects the S-CSCF according to the user information of the HSS at the time of registration with the IMS and session control.
  • the E-CSCF acquires the location information of the mobile terminal and selects an appropriate emergency reporting station according to the location information.
  • the application server AS performs common basic control or overall control of each application service in cooperation with the mobile terminal. Specifically, the S-CSCF relays the SIP signal with the mobile terminal UE to the AS, and the AS performs service control. Further, the AS acquires user information related to the application service from the HSS, and performs authentication and authorization for the application.
  • the home subscriber server HSS is a database that handles user information of mobile terminals that access the service control network. Specifically, a private user identifier, a public user identifier, an address of an S-CSCF that performs session control, contract service information, security information, information on initial filter criteria, and the like are held.
  • the HSS reads and writes information from the S-CSCF, I-CSCF, and AS.
  • a signal used when the mobility management node MME establishes a bearer for the radio base station eNodeB is used.
  • the position information is acquired and notified to the IMS side.
  • the IMS it is possible to obtain an updated position information.
  • QoS information is instructed from the IMS-based call control node to the policy control node of the EPC network (AAR signal, AAA signal of Diameter Base Protocol) (step ( 1)).
  • AAR signal AAA signal of Diameter Base Protocol
  • a radio bearer between the mobile terminal UE and the radio base station eNodeB is established between the EPC network and the mobile terminal UE and the radio base station eNodeB (steps (2) and (3)).
  • a resource reservation completion notice is sent from the policy control node of the EPC network to the IMS-based call control node (RAR signal and RAA signal of Diameter Base Protocol) (step (4)).
  • the location information (located cell ID, area code, tracking area ID of the mobile terminal) is notified in the bearer establishment response step (3) and the resource reservation completion notification step (4).
  • the serving cell ID held by the policy control node (PCRF) of the EPC network is the cell ID at the time of registration, and it is conceivable that it is not necessarily the cell ID in which the user is located when making a call.
  • the serving cell ID acquired when the radio bearer is established since it is the serving cell ID acquired when the radio bearer is established, it is the latest cell ID where the user is located when making / receiving a call.
  • the latest location information can be acquired on the IMS base, and highly reliable location information can be handled by IMS.
  • the mobile communication method of the present invention establishes a radio bearer between a mobile terminal and a radio base station via a mobility management node, acquires location information of the mobile terminal from the radio base station, and performs the mobility management.
  • the information is transmitted to a policy control node via a node, and the location information is transmitted from the policy control node to a call control node.
  • the location information transmitted by the Diameter Base Protocol RAA signal is transmitted to the call control node by the Diameter Base Protocol RAR signal.
  • the location information acquisition request signal transmitted together with the AAR signal from the call control node and a Diameter Base Protocol RAR signal be transmitted to the gateway device.
  • the location information is preferably a cell ID, area code, and tracking area ID of the mobile terminal.
  • the area code is an information element set in the radio base station, and indicates an installation location of the radio base station (for example, Chiyoda-ku, Tokyo).
  • the Tracking Area ID is information that is a unit of mobility management area in the EPC network and is held by the mobility management node MME.
  • the mobile communication method of the present invention includes the following sequence.
  • PMIP Proxy Mobile Internet Protocol
  • Cell ID acquisition Cell ID acquisition
  • GPRS General Packet Radio Service
  • GTP ID acquisition PMIP sequence to request acquisition from P-CSCF (Cell ID acquisition)
  • PMIP sequence to request acquisition from P-CSCF Cell ID acquisition
  • P-CSCF Cell ID acquisition
  • P-CSCF area code acquisition
  • PMIP sequence to request acquisition from P-CSCF area code acquisition
  • PMIP sequence Track Area ID acquisition
  • PMIP sequence to request acquisition from P-CSCF Tracking Area ID acquisition
  • FIG. 11 PMIP sequence to request acquisition from P-CSCF (Tracking Area ID acquisition)
  • these sequences will be described.
  • PMIP sequence Cell ID acquisition
  • the call control node P-CSCF instructs QoS reservation to the LTE network. That is, the call control node P-CSCF cooperates with the policy control node PCRF to determine the capability (eg, usable codec) of the mobile terminal UE on the transmission side and the reception side and the resource status of the radio access network (in this case, the LTE network).
  • QoS is set according to Specifically, the call control node P-CSCF transmits a Diameter Base Protocol AAR (AA-Request) signal to the policy control node PCRF, authenticates the service information, and stores the service information in the policy control node PCRF. . Next, the policy control node PCRF transmits the AAA signal (AA-Answer) of the Diameter Base Protocol to the call control node P-CSCF.
  • AAA AAA signal
  • FIG. 4 shows a sequence when a bearer setup request is received from the call control node P-CSCF.
  • the present invention can be similarly applied to a bearer setup request from the mobile terminal. it can.
  • the sequence described below is a sequence common to both the bearer setup request from the call control node P-CSCF and the bearer setup request from the mobile terminal.
  • the policy control node PCRF determines PCC (Policy and Charging Control) / QoS rules for RTP (Real-time Transport Protocol) / RTCP (RTP Control Protocol). Then, the policy control node PCRF transmits a Diameter Base Protocol RAR (Re-Auth-Request) signal to the gateway device S-GW. In the gateway device S-GW, the QoS rule is installed.
  • a radio bearer is established between the mobile terminal UE and the radio base station eNodeB via the mobility management node MME.
  • a generation bearer request signal (GTPv2_Create Bearer Request) is transmitted from the gateway device S-GW to the mobility management node MME.
  • the mobility management node MME transmits an E-RAB (EPS-Radio Access Bearer) setup request signal (S1-AP_E-RAB Setup Request) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a radio resource control connection reconfiguration signal (RRC_RRC Connection Reconfiguration) to the mobile terminal UE.
  • RRC_RRC Connection Reconfiguration radio resource control connection reconfiguration
  • the mobile terminal UE transmits a radio resource control connection reconfiguration completion signal (RRC_RRC Connection Reconfiguration Complete) to the radio base station eNodeB. Then, the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME. Also, the mobile terminal UE transmits an uplink information signal (RRC UL Information Transfer) for radio resource control to the radio base station eNodeB. Then, the radio base station eNodeB transmits a control signal (S1-AP_Uplink NAS (Non-Access Stratum) Transport) for mobility management and session management between the UE and the MME to the mobility management node MME.
  • RRC_RRC Connection Reconfiguration Complete a radio resource control connection reconfiguration Complete
  • the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management
  • the radio base station eNodeB together with this control signal, transmits the Cell-ID of the cell where the mobile terminal UE (user) is located to the mobility management node MME.
  • this information (Cell-ID of the cell in the area) may be set in S1-AP_E-RAB Setup Response.
  • the mobility management node MME transmits a generation bearer response signal (GTPv2_Create Bearer Response) and a Cell ID to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the Cell ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device P-GW.
  • the gateway device P-GW installs the PCC rule.
  • the gateway device P-GW transmits a Diameter Base Protocol RAA (Re-Auth-Answer) signal to the call control node P-CSCF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Cell ID) of the mobile terminal UE is acquired from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (Cell ID) from the policy control node PCRF. ) To the call control node P-CSCF.
  • (2) GTP sequence (Acquire Cell ID)
  • session establishment at the IMS layer is performed.
  • the call control node P-CSCF instructs QoS reservation to the LTE network. That is, the call control node P-CSCF cooperates with the policy control node PCRF to determine the capability (eg, usable codec) of the mobile terminal UE on the transmission side and the reception side and the resource status of the radio access network (in this case, the LTE network).
  • QoS is set according to Specifically, the call control node P-CSCF transmits an AAR signal of Diameter Base Protocol (authentication, approval, and accounting protocol by peer-to-peer communication) to the policy control node PCRF. Authenticate the service information and store the service information. Next, the policy control node PCRF transmits a Diameter Base Protocol AAA signal to the call control node P-CSCF.
  • Diameter Base Protocol authentication, approval, and accounting protocol by peer-to-peer communication
  • FIG. 5 shows a sequence when a bearer setup request is received from the call control node P-CSCF, but the present invention can be similarly applied to a bearer setup request from the mobile terminal. it can.
  • the sequence described below is a sequence that is common to both the bearer setup request from the call control node P-CSCF and the bearer setup request from the mobile terminal.
  • the policy control node PCRF determines PCC / QoS rules for RTP / RTCP. Then, the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device P-GW. In the gateway device P-GW, the QoS rule is installed.
  • a radio bearer is established between the mobile terminal UE and the radio base station eNodeB via the mobility management node MME.
  • a generated bearer request signal (GTPv2_Create Bearer Request) is transmitted from the gateway device P-GW to the gateway device S-GW, and the gateway device S-GW transmits a generated bearer request signal (GTPv2_Create Bearer Request) to the mobility management node MME.
  • the mobility management node MME transmits an E-RAB setup request signal (S1-AP_E-RAB Setup Request) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a radio resource control connection reconfiguration signal (RRC_RRC Connection Reconfiguration) to the mobile terminal UE.
  • RRC_RRC Connection Reconfiguration radio resource control connection reconfiguration
  • the mobile terminal UE transmits a radio resource control connection reconfiguration completion signal (RRC_RRC Connection Reconfiguration Complete) to the radio base station eNodeB. Then, the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME. Also, the mobile terminal UE transmits an uplink information signal (RRC UL Information Transfer) for radio resource control to the radio base station eNodeB. Then, the radio base station eNodeB transmits a control signal (S1-AP_Uplink NAS Transport) for mobility management and session management between UE and MME to the mobility management node MME.
  • RRC_RRC Connection Reconfiguration Complete a radio resource control connection reconfiguration Complete
  • the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME.
  • the radio base station eNodeB together with this control signal, transmits the Cell-ID of the cell where the mobile terminal UE (user) is located to the mobility management node MME.
  • this information (Cell-ID of the cell in the area) may be set in S1-AP_E-RAB Setup Response.
  • the mobility management node MME transmits the generated bearer response signal (GTPv2_Create Bearer Response) and the Cell ID to the gateway device S-GW, and the gateway device S-GW transmits the generated bearer response signal (GTPv2_Create Bearer Response) to the gateway device P-.
  • Send to GW The gateway device P-GW transmits the Diameter Base Protocol RAA signal and the Cell ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Cell ID) of the mobile terminal UE is acquired from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (Cell ID) from the policy control node PCRF. ) To the call control node P-CSCF.
  • PMIP sequence to request acquisition from P-CSCF Cell ID acquisition
  • This sequence shows a case where the call control node P-CSCF acquires the location information of the mobile terminal UE before setting up the voice bearer in the case of an emergency call.
  • SIP_INVITE an emergency call number
  • the call control node P-CSCF determines whether the call is an emergency call. .
  • the call control node P-CSCF transmits an AAR signal of Diameter Base Protocol to the policy control node PCRF.
  • the call control node P-CSCF transmits a cell ID acquisition request signal to the policy control node PCRF.
  • the policy control node PCRF transmits an AAA signal of Diameter Base Protocol to the call control node P-CSCF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID acquisition request signal to the gateway device S-GW.
  • the gateway device S-GW transmits a change bearer request signal (GTPv2_Modify Bearer Request) and a cell ID acquisition request signal to the mobility management node MME.
  • the mobility management node MME transmits a location report request signal (S1-AP_LOCATION REPORTING CONTROL) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a location report request signal (S1-AP_LOCATION REPORT) to the mobility management node MME.
  • the radio base station eNodeB together with this control signal, transmits the Cell-ID of the cell where the mobile terminal UE (user) is located to the mobility management node MME.
  • the mobility management node MME transmits a change bearer response signal (GTPv2_Modify Bearer Response) and a Cell ID to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the Cell ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Cell ID) of the mobile terminal UE is acquired from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (Cell ID) from the policy control node PCRF. ) To the call control node P-CSCF.
  • FIG. 6 includes a procedure in which location reporting is performed between the mobility management node MME and the radio base station eNodeB, and location information (Cell ID) is acquired from the radio base station in the procedure.
  • the location reporting procedure is not performed, and the location information (Cell ID) held by the mobility management node MME is transmitted from the mobility management node MME via the policy control node PCRF. It may be transmitted to the call control node P-CSCF.
  • the call control node P-CSCF transmits an AAR signal of Diameter Base Protocol to the policy control node PCRF.
  • the call control node P-CSCF transmits a cell ID acquisition request signal to the policy control node PCRF.
  • the policy control node PCRF transmits an AAA signal of Diameter Base Protocol to the call control node P-CSCF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID acquisition request signal to the gateway device P-GW.
  • a bearer is established via the mobility management node MME.
  • the gateway device P-GW sends a change bearer request signal (GTPv2_Modify Bearer Request) and a cell ID acquisition request signal to the gateway device S-GW, and the gateway device S-GW sends a change bearer request signal (GTPv2_Modify Bearer Request).
  • a cell ID acquisition request signal is transmitted to the mobility management node MME.
  • the mobility management node MME transmits a location report request signal (S1-AP_LOCATION REPORTING CONTROL) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a location report request signal (S1-AP_LOCATION REPORT) to the mobility management node MME.
  • the radio base station eNodeB together with this control signal, transmits the Cell-ID of the cell where the mobile terminal UE (user) is located to the mobility management node MME.
  • the mobility management node MME transmits the change bearer response signal (GTPv2_Modify Bearer Response) and the Cell ID to the gateway device S-GW, and the gateway device S-GW sends the change bearer response signal (GTPv2_Modify Bearer Response) and the Cell ID. Transmit to the gateway device P-GW.
  • the gateway device P-GW transmits the Diameter Base Protocol RAA signal and the Cell ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Cell ID to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Cell ID) of the mobile terminal UE is acquired from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (Cell ID) from the policy control node PCRF. ) To the call control node P-CSCF.
  • FIG. 7 includes a procedure in which location reporting is performed between the mobility management node MME and the radio base station eNodeB, and location information (Cell ID) is acquired from the radio base station in the procedure.
  • the location reporting procedure is not performed, and the location information (Cell ID) held by the mobility management node MME is transmitted from the mobility management node MME via the policy control node PCRF. It may be transmitted to the call control node P-CSCF.
  • the location information can be notified to the IMS base quickly without going through the QoS setting procedure. It can be handled quickly.
  • the emergency call number (SIP_INVITE) is transmitted from the mobile terminal UE to the call control node E-CSCF, and the call control node E-CSCF determines the emergency call.
  • the call control node P-CSCF may directly send the Diameter Base Protocol AAR signal and Cell ID acquisition request signal to the policy control node PCRF, and the emergency call number (SIP_INVITE) is sent from the mobile terminal UE to the call control node.
  • the call control node E-CSCF sends an emergency call to the E-CSCF, and the call control node E-CSCF sends the Diameter Base Protocol AAR signal and the Cell ID acquisition request signal to the call control node P-CSCF. Via the policy control node PCRF.
  • PMIP sequence area code acquisition
  • the call control node P-CSCF instructs QoS reservation to the LTE network. That is, the call control node P-CSCF cooperates with the policy control node PCRF to determine the capability (eg, usable codec) of the mobile terminal UE on the transmission side and the reception side and the resource status of the radio access network (in this case, the LTE network).
  • QoS is set according to Specifically, the call control node P-CSCF transmits a Diameter Base Protocol AAR signal to the policy control node PCRF, and the service information is authenticated and stored in the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol AAA signal to the call control node P-CSCF.
  • FIG. 8 shows a sequence when a bearer setup request is received from the call control node P-CSCF.
  • the present invention can be similarly applied to a bearer setup request from the mobile terminal. it can.
  • the sequence described below is common to both the bearer setup request from the call control node P-CSCF and the bearer setup request from the mobile terminal.
  • the policy control node PCRF determines PCC / QoS rules for RTP / RTCP. Then, the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device S-GW. In the gateway device S-GW, the QoS rule is installed.
  • a radio bearer is established between the mobile terminal UE and the radio base station eNodeB via the mobility management node MME.
  • a generation bearer request signal (GTPv2_Create Bearer Request) is transmitted from the gateway device S-GW to the mobility management node MME.
  • the mobility management node MME transmits an E-RAB setup request signal (S1-AP_E-RAB Setup Request) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a radio resource control connection reconfiguration signal (RRC_RRC Connection Reconfiguration) to the mobile terminal UE.
  • RRC_RRC Connection Reconfiguration radio resource control connection reconfiguration
  • the mobile terminal UE transmits a radio resource control connection reconfiguration completion signal (RRC_RRC Connection Reconfiguration Complete) to the radio base station eNodeB. Then, the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME. The radio base station eNodeB transmits an area code together with this control signal to the mobility management node MME (if the radio base station eNodeB holds the area code, the area code is transmitted to the mobility management node MME when the bearer is set up. Set to notify).
  • RRC_RRC Connection Reconfiguration Complete radio resource control connection reconfiguration Complete
  • the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME.
  • the radio base station eNodeB transmits an area code together with this control signal to the mobility management node M
  • the mobile terminal UE transmits an uplink information signal (RRC UL Information Transfer) for radio resource control to the radio base station eNodeB. Then, the radio base station eNodeB transmits a control signal (S1-AP_Uplink NAS Transport) for mobility management and session management between UE and MME to the mobility management node MME.
  • the radio base station eNodeB may transmit an area code together with this control signal to the mobility management node MME instead of the response signal (S1-AP_E-RAB Setup Response).
  • the mobility management node MME transmits a generation bearer response signal (GTPv2_Create Bearer Response) and an area code to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the area code to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device P-GW.
  • the gateway device P-GW installs the PCC rule.
  • the gateway device P-GW transmits a Diameter Base Protocol RAA (Re-Auth-Answer) signal to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and an area code to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (area code) of the mobile terminal UE is obtained from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (area code) from the policy control node PCRF. ) To the call control node P-CSCF.
  • FIG. 8 shows a PMIP sequence
  • the location information (area code) of the mobile terminal UE is acquired from the radio base station eNodeB and passes through the mobility management node MME. It is also possible to transmit to the policy control node PCRF, and to transmit the position information (area code) from the policy control node PCRF to the call control node P-CSCF.
  • PMIP sequence requested for acquisition from the P-CSCF (area code acquisition) This sequence shows a case where the call control node P-CSCF acquires the location information of the mobile terminal UE before setting up the voice bearer in the case of an emergency call.
  • SIP_INVITE emergency call number
  • the call control node P-CSCF determines whether the call is an emergency call. .
  • the call control node P-CSCF transmits an AAR signal of Diameter Base Protocol to the policy control node PCRF.
  • the call control node P-CSCF transmits an area code acquisition request signal to the policy control node PCRF.
  • the policy control node PCRF transmits an AAA signal of Diameter Base Protocol to the call control node P-CSCF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and an area code acquisition request signal to the gateway device S-GW.
  • the gateway device S-GW transmits a change bearer request signal (GTPv2_Modify Bearer Request) and an area code acquisition request signal to the mobility management node MME.
  • the mobility management node MME transmits a location report request signal (S1-AP_LOCATION REPORTING CONTROL) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a location report request signal (S1-AP_LOCATION REPORT) to the mobility management node MME.
  • the radio base station eNodeB transmits an area code together with this control signal to the mobility management node MME.
  • the radio base station eNodeB holds an area code, it may be set to notify the mobility management node MME, and an “area code acquisition request” is set from the mobility management node MME, and this acquisition request You may take the procedure of the response to.
  • the mobility management node MME transmits a change bearer response signal (GTPv2_Modify Bearer Response) and an area code to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the area code to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and an area code to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (area code) of the mobile terminal UE is obtained from the radio base station eNodeB, transmitted to the policy control node PCRF via the mobility management node MME, and the location information (area code) from the policy control node PCRF. ) To the call control node P-CSCF.
  • FIG. 9 includes a procedure in which location reporting is performed between the mobility management node MME and the radio base station eNodeB, and the location information (area code) is acquired from the radio base station in the procedure.
  • the location reporting procedure is not performed, and the location information (area code) held by the mobility management node MME is transmitted from the mobility management node MME via the policy control node PCRF. It may be transmitted to the call control node P-CSCF.
  • the emergency call number (SIP_INVITE) is transmitted from the mobile terminal UE to the call control node E-CSCF, the call control node E-CSCF determines the emergency call, and the call control
  • the node P-CSCF may directly send the Diameter Base Protocol AAR signal and the area code acquisition request signal to the policy control node PCRF, and the emergency call number (SIP_INVITE) from the mobile terminal UE to the call control node E-CSCF.
  • the call control node E-CSCF determines the emergency call, and the call control node E-CSCF controls the AAR signal of the Diameter Base Protocol and the area code acquisition request signal via the call control node P-CSCF. It may be transmitted to the node PCRF.
  • E-UTRAN Global Cell ID consists of MCC, MNC, and ECI.
  • ECI is eNodeB ID (20 bits) + Cell ID (8 bits) in the case of a macro base station, and eNodeB in the case of a femto base station. ID (28 bits).
  • the E-CGI may change the mapping with the physical area depending on the operation. For this reason, it is necessary to change the “E-CGI-physical area” mapping database in the E-CSCF for selecting the emergency call station in accordance with the change of the E-CGI. If the E-CSCF can acquire the area code, it is not necessary to change the database as described above, and the operation cost can be reduced.
  • FIG. 9 shows a PMIP sequence.
  • the location information (area code) of the mobile terminal UE is acquired from the radio base station eNodeB and passes through the mobility management node MME. It is also possible to transmit to the policy control node PCRF, and to transmit the position information (area code) from the policy control node PCRF to the call control node P-CSCF.
  • PMIP sequence Track Area ID acquisition
  • session establishment at the IMS layer is performed.
  • the call control node P-CSCF instructs QoS reservation to the LTE network. That is, the call control node P-CSCF cooperates with the policy control node PCRF to determine the capability (eg, usable codec) of the mobile terminal UE on the transmission side and the reception side and the resource status of the radio access network (in this case, the LTE network).
  • QoS is set according to Specifically, the call control node P-CSCF transmits a Diameter Base Protocol AAR signal to the policy control node PCRF, and the service information is authenticated and stored in the policy control node PCRF. Next, the policy control node PCRF transmits a Diameter Base Protocol AAA signal to the call control node P-CSCF.
  • FIG. 10 shows a sequence when a bearer setup request is received from the call control node P-CSCF, but the present invention can be similarly applied to a bearer setup request from the mobile terminal. it can.
  • the sequence described below is a sequence that is common to both the bearer setup request from the call control node P-CSCF and the bearer setup request from the mobile terminal.
  • the policy control node PCRF determines PCC / QoS rules for RTP / RTCP. Then, the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device S-GW. In the gateway device S-GW, the QoS rule is installed.
  • a radio bearer is established between the mobile terminal UE and the radio base station eNodeB via the mobility management node MME.
  • a generation bearer request signal (GTPv2_Create Bearer Request) is transmitted from the gateway device S-GW to the mobility management node MME.
  • the mobility management node MME transmits an E-RAB setup request signal (S1-AP_E-RAB Setup Request) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a radio resource control connection reconfiguration signal (RRC_RRC Connection Reconfiguration) to the mobile terminal UE.
  • RRC_RRC Connection Reconfiguration radio resource control connection reconfiguration
  • the mobile terminal UE transmits a radio resource control connection reconfiguration completion signal (RRC_RRC Connection Reconfiguration Complete) to the radio base station eNodeB. Then, the radio base station eNodeB transmits a response signal (S1-AP_E-RAB Setup Response) to the E-RAB setup request signal to the mobility management node MME.
  • RRC_RRC Connection Reconfiguration Complete a radio resource control connection reconfiguration completion signal
  • S1-AP_E-RAB Setup Response S1-AP_E-RAB Setup Response
  • the mobile terminal UE transmits an uplink information signal (RRC UL Information Transfer) for radio resource control to the radio base station eNodeB. Then, the radio base station eNodeB transmits a control signal (S1-AP_Uplink NAS Transport) for mobility management and session management between UE and MME to the mobility management node MME.
  • RRC UL Information Transfer uplink information signal
  • S1-AP_Uplink NAS Transport control signal
  • the mobility management node MME transmits a generated bearer response signal (GTPv2_Create Bearer Response) and a Tracking Area ID to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the Tracking Area ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal to the gateway device P-GW.
  • the gateway device P-GW to install the QoS rules.
  • the gateway device P-GW transmits a Diameter Base Protocol RAA (Re-Auth-Answer) signal to the call control node P-CSCF.
  • the policy control node PCRF transmits the RAR signal of Diameter Base Protocol and the Tracking Area ID to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Tracking Area ID) of the mobile terminal UE is acquired from the mobility management node MME and transmitted to the policy control node PCRF, and the location information (Tracking Area ID) is received from the policy control node PCRF.
  • -Send to CSCF to CSCF.
  • FIG. 10 shows a PMIP sequence.
  • the location information (Tracking Area ID) of the mobile terminal UE is obtained from the mobility management node MME and sent to the policy control node PCRF. It is also possible to transmit the location information (Tracking Area ID) from the policy control node PCRF to the call control node P-CSCF.
  • PMIP sequence to request acquisition from P-CSCF This sequence shows a case where the call control node P-CSCF acquires the location information of the mobile terminal UE before setting up the voice bearer in the case of an emergency call.
  • SIP_INVITE emergency call number
  • the call control node P-CSCF transmits an AAR signal of Diameter Base Protocol to the policy control node PCRF.
  • the call control node P-CSCF transmits a tracking area ID acquisition request signal to the policy control node PCRF.
  • the policy control node PCRF transmits an AAA signal of Diameter Base Protocol to the call control node P-CSCF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and a Tracking Area ID acquisition request signal to the gateway device S-GW.
  • a bearer is established via the mobility management node MME.
  • a change bearer request signal (GTPv2_Modify Bearer Request) and a tracking area ID acquisition request signal are transmitted from the gateway device S-GW to the mobility management node MME.
  • the mobility management node MME transmits a location report request signal (S1-AP_LOCATION REPORTING CONTROL) to the radio base station eNodeB.
  • the radio base station eNodeB transmits a location report request signal (S1-AP_LOCATION REPORT) to the mobility management node MME.
  • the mobility management node MME transmits a change bearer response signal (GTPv2_Modify Bearer Response) and a Tracking Area ID to the gateway device S-GW.
  • the gateway device S-GW transmits the Diameter Base Protocol RAA signal and the Tracking Area ID to the policy control node PCRF.
  • the policy control node PCRF transmits a Diameter Base Protocol RAR signal and an area code to the call control node P-CSCF.
  • the call control node P-CSCF sends a Diameter Base Protocol RAA signal to the policy control node PCRF.
  • the location information (Tracking Area ID) of the mobile terminal UE is acquired from the mobility management node MME and transmitted to the policy control node PCRF, and the location information (Tracking Area ID) is received from the policy control node PCRF. -Send to CSCF.
  • the emergency call number (SIP_INVITE) is transmitted from the mobile terminal UE to the call control node E-CSCF, the call control node E-CSCF determines the emergency call, and the call control
  • the node P-CSCF may directly send the Diameter Base Protocol AAR signal and the Tracking Area ID acquisition request signal to the policy control node PCRF, and the emergency call number (SIP_INVITE) is sent from the mobile terminal UE to the call control node E-CSCF.
  • the call control node E-CSCF makes an emergency call determination, and the call control node E-CSCF sends a Diameter Base Protocol AAR signal and a Tracking Area ID acquisition request signal via the call control node P-CSCF. It may be transmitted to the policy control node PCRF.
  • FIG. 11 shows a PMIP sequence.
  • the location information (Tracking Area ID) of the mobile terminal UE is obtained from the mobility management node MME and is sent to the policy control node PCRF. It is also possible to transmit the location information (Tracking Area ID) from the policy control node PCRF to the call control node P-CSCF.
  • the present invention has been described in detail using the above-described embodiments, it is obvious for those skilled in the art that the present invention is not limited to the embodiments described in the present specification.
  • the signal name in the sequence is an example, and the signal name is not limited to this, and may be another signal name.
  • the present invention can be implemented as a modification and update mode without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.

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Abstract

La présente invention concerne un nœud de commande de politique et un procédé de communication mobile servant à fournir des informations de position, telles qu'un identifiant (ID) de cellule, d'un réseau EPC à un IMS fondamental. Un procédé de communication mobile selon la présente invention est caractérisé en ce que : un support est établi via un nœud de gestion de la mobilité (MME) ; les informations de position d'un terminal mobile (UE) sont acquises d'une station de base radio (eNodeB) ou du nœud de gestion de la mobilité (MME) et transmises à un nœud de commande de politique (PCRF) ; et les informations de position sont ensuite transmises du nœud de commande de politique (PCRF) à un nœud de commande d'appel (P-CSCF).
PCT/JP2011/067585 2010-08-20 2011-08-01 Procédé de communication mobile et nœud de commande de politique WO2012023420A1 (fr)

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WO2019144786A1 (fr) * 2018-01-26 2019-08-01 华为技术有限公司 Procédé d'abonnement à des informations sans fil, dispositifs associés, et système

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KR101539981B1 (ko) * 2014-02-11 2015-07-29 에스케이텔레콤 주식회사 이동 통신 시스템에서 단말의 위치 정보 보고 방법 및 이를 위한 장치

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