WO2014017630A1 - 通信システムとノード装置と方法とプログラム - Google Patents

通信システムとノード装置と方法とプログラム Download PDF

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Publication number
WO2014017630A1
WO2014017630A1 PCT/JP2013/070319 JP2013070319W WO2014017630A1 WO 2014017630 A1 WO2014017630 A1 WO 2014017630A1 JP 2013070319 W JP2013070319 W JP 2013070319W WO 2014017630 A1 WO2014017630 A1 WO 2014017630A1
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WIPO (PCT)
Prior art keywords
access network
terminal
information
notification
radio access
Prior art date
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Ceased
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PCT/JP2013/070319
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English (en)
French (fr)
Japanese (ja)
Inventor
田村　利之
祐介 高野
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NEC Corp
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NEC Corp
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Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to BR112015000812A priority Critical patent/BR112015000812A2/pt
Priority to US14/414,292 priority patent/US20150201371A1/en
Priority to IN11042DEN2014 priority patent/IN2014DN11042A/en
Priority to KR1020157003421A priority patent/KR101697881B1/ko
Priority to CN201380040040.2A priority patent/CN104509171A/zh
Priority to CA2880171A priority patent/CA2880171C/en
Priority to MX2015001005A priority patent/MX2015001005A/es
Priority to JP2014527027A priority patent/JP6090323B2/ja
Priority to EP13823093.3A priority patent/EP2879438A4/en
Publication of WO2014017630A1 publication Critical patent/WO2014017630A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • 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
    • H04W8/04—Registration at HLR or HSS [Home Subscriber Server]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

Definitions

  • the present invention relates to a communication system, a node device, a method, and a program.
  • Wi-Fi Wireless Fidelity: Wi-Fi is a registered Wi-Fi Alliance. Focusing on offloading (routing) by switching to other networks such as wireless LAN (Local Area Network) using trademark technology, wireless LAN access points (simply “access points” or “hot spots") We are actively promoting off-road countermeasures such as expansion). Wi-Fi refers to a test conducted by the Wi-Fi Alliance to verify the interoperability compatibility of IEEE (The Institute of Electrical and Electronics Electronics Inc) 802.11 series wireless LANs. .
  • the traffic (traffic volume) A fixed amount up to a predetermined first threshold, If the first threshold value is exceeded and the second threshold value (second threshold value> first threshold value) is less than or equal to, the pay-per-use system is set. When the second threshold is exceeded, it becomes an offload target. Is. In this case, there is a possibility that some of the subscribers of the terminal have reached the limited amount for billing, but the subscriber who does not reach the billing upper limit due to the introduction of offload. The reason is as follows.
  • the subscriber when there are many wireless LAN access points (public wireless LAN) such as Wi-Fi in the subscriber's action range, the subscriber always uses the wireless LAN access point.
  • wireless LAN access points public wireless LAN
  • the conventional ARPU Average Revenue Per User: per subscriber in a telecommunications carrier May not be able to maintain monthly sales
  • a billing plan there is a service that limits the communication speed of the mobile network if communication exceeding a certain packet amount (threshold) is performed, although it is completely flat-rate. For example, when the data amount exceeds the upper limit, the maximum value of the transmission / reception communication speed is drastically reduced until the end of the month.
  • Public wireless LAN facilities are installed in, for example, cafes, fast food restaurants, station premises, airports, etc., and access by wireless LAN is not suitable for high-speed movement.
  • Some users such as smartphones basically do not like wireless LAN access, but the mobile network (3GPP (3rd Generation Generation Partnership Project) network) communication speed is limited and mobile network wireless access If a communication speed above a certain level is not guaranteed, it may be determined that it is better to use a wireless access network other than the wireless access network defined by 3GPP, and access by a wireless LAN may be used exclusively.
  • 3GPP 3rd Generation Generation Partnership Project
  • the present invention has been made in view of the above problems, and its object is to provide a communication system, apparatus, and method capable of determining whether or not an offload is possible in consideration of the communication amount, billing form, and serviceability of the terminal. And to provide a program.
  • a communication system comprising: a node that controls notification to the terminal of information related to another radio access network that can be an offload destination from a body communication access network.
  • a node device that controls notification of information related to another radio access network that can be an offload destination to the terminal.
  • the mobile based on the charging mode set for a terminal capable of communication by switching from a mobile communication access network to another radio access network and the information on the communication amount of the terminal, the mobile There is provided a communication method for controlling notification to the terminal of information related to another radio access network that can be an offload destination from a body communication access network.
  • a program that causes a computer that constitutes a node to execute a process of controlling notification to the terminal of information related to another radio access network that can be an offload destination.
  • a computer-readable recording medium non-transitory medium such as a semiconductor memory recording the program and a magnetic disk / optical disk is provided.
  • the present invention it is possible to determine whether or not offloading is possible in consideration of the communication amount of the terminal, the charging form, and serviceability.
  • a terminal that can communicate by switching from a mobile communication access network to another wireless access network such as a wireless LAN, the charging mode set in the terminal, and information on the communication amount of the terminal, On the basis of the mobile communication access network, it is configured to control the notification of information related to other radio access networks that can be an offload destination to the terminal. In consideration of this, it is possible to determine whether or not offloading is performed.
  • FIG. 1 is a diagram illustrating the configuration of exemplary embodiment 1 of the present invention.
  • a 3GPP network is used as a mobile communication access network below.
  • a billing contract in the 3GPP network specified in 3GPP the handling of data traffic during the billing target period, and an offload method will be described.
  • 3GPP TS23.203 V11.06 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Policy and charging control architecture (Release 11)
  • FIG. 1 shows a configuration in which ANDSF 40 is integrated with the configuration of billing information in 3GPP TS23.203.
  • 3GPP TS23.402 V.11.3.0 (3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Architecture enhancements for non-3GPP accesses (Release 11)), 3GPP TS24.312 V.11.3.0 ( Reference is made to 3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Access Network Discovery and Selection Function (ANDSF40) Management Object (MO) (Release 11) and the like.
  • a communication terminal (UE) 10 accesses the Internet or the like via a 3GPP network 20.
  • the communication terminal (UE) 10 is composed of a mobile terminal, for example. However, it may be a mobile terminal mounted on a vehicle or the like, or a fixed terminal installed in a home or the public.
  • a communication terminal (UE) 10 connects to an access point of a wireless LAN network (non-3GPP network 30) such as Wi-Fi and accesses the Internet or the like.
  • the 3GPP network 20 includes a radio access network (Radio Access Network) such as UTRAN (Universal Terrestrial Radio Access Network) or Evolved-UTRAN (not shown), GPRS (General Packet Radio Service), EPC (Evolved Packet Service Core), etc.
  • Radio Access Network such as UTRAN (Universal Terrestrial Radio Access Network) or Evolved-UTRAN (not shown), GPRS (General Packet Radio Service), EPC (Evolved Packet Service Core), etc.
  • the network nodes 40 to 90 in FIG. 1 including the core network and the like are connected to the core network side.
  • the subscriber's billing contract information (service contract information) is registered in a subscriber profile repository SPR (Subscriber Profile Repository).
  • SPR Subscriber Profile Repository
  • the SPR function is generally implemented in a home subscriber server HSS 50 (Home Subscriber Server) 50 that is a database of subscriber information.
  • the online charging subsystem OCS Online Charging Subsystem 80 counts and counts the usage amount (data communication amount used or time used) during the accounting target period.
  • the OCS is a logical node used for an online charging target subscriber (generally a prepaid subscriber), but in this embodiment, the usage amount of the charging target period is counted and counted by the OCS for convenience. Therefore, it is assumed that an apparatus equivalent to OCS is also installed for a subscriber who is subject to offline charging.
  • PCEF Policy and Charging Execution Function
  • the PCEF 71 inquires (or notifies) the policy and charging rule function PCRF 60 (Policy Charging Rules Function) 60 about how to handle packets and charging rules.
  • PCRF 60 Policy Charging Rules Function
  • the PCEF 71 is a function name, and a GGSN (Gateway GPRS Support Node) in a GPRS (General Packet Radio Service) (3G) system, or a P-GW (PDN (packet data data network) Gateway) 70 in an LTE (Long Term Evolution) system. has been implemented.
  • the PCEF 71 notifies subscribers' charging information (used communication amount and communication time) to the PCRF 60 or OCS 80.
  • the PCRF 60 acquires charging contract information from the SPR (SPR / UDR 51) and generates a rule for notifying to the PCEF 71.
  • Offline charging subsystem OFCS (Offline Charging Subsystem) 90 is an offline charging server, and aggregates information for subsequent charging such as monthly payment.
  • Access Network Discovery and Selection Function 40 is an access other than a 3GPP access network (cell phone radio network) such as wireless LAN or WiMAX (Worldwide interoperability for Microwave Access) that can be offloaded (detoured). It has a function of notifying the communication terminal (UE) 10 of identification information (such as SSID (Service Set Identifier) in the wireless network) of the network (non-3GPP network 30) and prompting offload.
  • 3GPP access network cell phone radio network
  • WiMAX Worldwide interoperability for Microwave Access
  • Offloading is performed when the communication terminal (UE) 10 tries to connect to a radio access network having identification information notified from the ANDSF 40 from among radio access networks in the vicinity.
  • the communication terminal (UE) 10 is assumed to have a communication function with 3GPP (antenna, wireless unit, etc.) and a communication function with a wireless access network (wireless network access point).
  • a certain node device on the 3GPP network considers the charging contract information of the communication terminal subscriber and the data communication amount used in the current radio access network, and identifies the identification information of the radio access network of the offload destination. The problem is solved by determining whether to notify (if not notified of identification information, notifying that there is no appropriate offloadable access network) and returning a response. This determination may be made, for example, by the ANDSF 40 collecting necessary information from the HSS 50, the OSC 80, and the OFCS 90. Alternatively, as described in detail in the second embodiment below, the PCRF 60 may make a determination based on information obtained in the course of processing, and notify and respond to the ANDSF 40.
  • the ANDSF 40 considers the charging contract information of the communication terminal subscriber and the data communication amount (for example, the total amount of packets per month) used in the current wireless access network, and the other wireless access network of the offload destination It is determined whether to notify the communication terminal (UE) 10 of the identification information.
  • the data communication amount for example, the total amount of packets per month
  • FIG. 2 is a diagram illustrating the configuration of the ANDSF 40 according to the first embodiment.
  • the network device 100 is the HSS 50, OCS 80, or OFCS 90 in FIG.
  • the ANDSF 40 is an inter-terminal signal processing unit 401 that communicates with the communication terminal (UE) 10 via the terminal-oriented interface 411 with the communication terminal (UE) 10, and the network device interface 412 between the network apparatus 100.
  • a network-to-network device signal processing unit 402 that communicates with the network device 100, a wireless base station data management unit 403 that provides information on the wireless network to be notified to the communication terminal (UE) 10, a policy acquired from the network device 100, Based on the communication volume, billing contract, etc., the presence / absence of notification to the communication terminal (UE) 10 of the radio access network information of the offload destination is determined.
  • FIG. 3 is a diagram illustrating an example of a typical sequence according to the first embodiment.
  • the communication terminal (UE) 10, ANDSF40, HSS50 SPR / UDR51, and the accounting server OSC / OFCS correspond to the communication terminal (UE) 10, ANDSF40, HSS50 (SPR / UDR51), and OCS80 / OFCS90 in FIG. is doing.
  • the communication terminal (UE) 10 uses a 3GPP access network (mobile phone radio access network) before the start of the procedure of FIG. 3 and enters a range of an access point of a radio access network such as Wi-Fi. .
  • 3GPP access network mobile phone radio access network
  • Step 1 The communication terminal (UE) 10 transmits an access network information request to the ANDSF 40.
  • Step 2 When the inter-terminal signal processing unit 401 receives an access network information request (Access Network Information Request) from the communication terminal (UE) 10, the ANDSF 40 requests the subscriber information from the HSS 50 via the inter-network device signal processing unit 402. (User Data Request) is transmitted.
  • Access Network Information Request Access Network Information Request
  • UE communication terminal
  • User Data Request User Data Request
  • Step 3 The HSS 50 returns a subscriber information response (User Data Response) to the subscriber information request from the HSS 50 to the ANDSF 40.
  • a subscriber information response User Data Response
  • Step 4 The ANDSF 40 receives the subscriber information response (User Data Response) from the HSS 50 in the signal processing unit 402 between network devices, confirms the charging form, contract information, etc. from the subscriber information included in the subscriber information response, Check if it is necessary to collect information from the billing server.
  • subscriber information response User Data Response
  • Step 5 When it is necessary to collect information from the accounting server, the ANDSF 40 sends a usage data request to the accounting server (OCS 80 / OFCS 90) from the inter-network device signal processing unit 402 and inquires about the current usage.
  • the accounting server OCS 80 / OFCS 90
  • Step 6 The accounting server (OCS 80 / OFCS 90) returns a usage data response, which is a response to the usage data request, to the ANDSF 40.
  • Step 7 The policy judgment / data construction unit 404 (see FIG. 2) of the ANDSF 40, for example, as shown in FIG. ⁇ Notify when usage (traffic volume) exceeds a threshold, ⁇ Notify when usage (traffic volume) is below threshold (below threshold), Or ⁇ Whether the subscriber's usage (communication volume) exceeds the threshold, Based on the combination of It is determined whether or not the communication terminal (UE) 10 is notified of identification information of a wireless network that can be an offload destination.
  • UE communication terminal
  • the type of billing type is to notify the identification information of a wireless network such as Wi-Fi that can be an offload destination when the usage amount (communication amount) exceeds a threshold
  • the ANDSF 40 notifies the communication terminal (UE) 10 of identification information of a wireless network that can be an offload destination
  • the ANDSF 40 does not notify the communication terminal (UE) 10 of identification information of a wireless network that can be an offload destination.
  • the type of billing type is to notify the identification information of a wireless network such as Wi-Fi that can be an offload destination when the usage amount (communication amount) is less than the threshold
  • the ANDSF 40 notifies the identification information of the wireless network that can be an offload destination
  • the ANDSF 40 does not notify the identification information of the wireless network that can be an offload destination.
  • the determination table in FIG. 4 is an example, and it is also possible to construct and determine a table that notifies in a certain range of usage and does not communicate.
  • Step 8 The policy determination / data construction unit 404 (see FIG. 2) of the ANDSF 40 notifies the communication terminal (UE) 10 of the identification information of the wireless network from the determination result of the presence / absence of notification of the identification information of the wireless network that is the offload destination. In this case, a message including identification information (for example, SSID) of the wireless network is constructed. When not notified, the policy judgment / data construction unit 404 of the ANDSF 40 constructs (creates) a message that does not include the identification information of another wireless network.
  • identification information for example, SSID
  • Step 9 The ANDSF 40 includes the constructed message in the access network information response (Access Network Information Response), and transmits it from the inter-terminal communication processing unit 401 (see FIG. 2) of the ANDSF 40 to the communication terminal (UE) 10.
  • access network information response Access Network Information Response
  • Step 10 The communication terminal (UE) 10 determines to switch to the non-3GPP network 30 (another wireless network) based on information included in the received access network information response (Access Network Information Response) transmitted from the ANDSF 40.
  • UE access network information response
  • the communication terminal (UE) 10 does not automatically switch to another radio network when the identification information of the other radio access network is not notified. For this reason, the communication terminal (UE) 10 is continuously connected to the 3GPP access network (mobile phone radio).
  • the identification information (for example, SSID) of the wireless access network is notified from the ANDSF 40, the communication terminal (UE) 10 transmits the identification information (SSID) of the wireless network to, for example, a connection request (Association Request) to the wireless LAN access point. Specify and send.
  • SSID identification information of the wireless network
  • the ANDSF 40 uses the communication up to the upper limit. It is possible to control the terminal (UE) 10 so as to notify the radio access network identification information and not to notify the radio access network identification information to the communication terminal (UE) 10 that has not reached the upper limit. it can. For this reason, in the case of a subscriber whose communication volume exceeds the upper limit, if the 3GGP access network is continuously used, stress due to communication speed limitation accumulates, but switching from the 3GPP access network to a radio access network other than 3GPP is performed. As a result, the communication speed is not limited, and the stress is eliminated.
  • the communication terminal (UE) 10 of the subscriber whose traffic volume has already exceeded the threshold has been switched to the radio access network.
  • the 3GPP access network it becomes possible to use the 3GPP access network in preference to the subscriber whose traffic has already exceeded the upper limit set in the contract. That is, for the communication terminal (UE) 10 of the subscriber whose communication volume has not reached the upper limit of the contract, the mobile operator does not notify the radio access network (is not subject to offloading) and continues.
  • the user can be encouraged to use the 3GPP access network (cellular phone wireless network).
  • FIG. 5 is a diagram illustrating a system configuration of the second embodiment.
  • the PCRF 60 receives the request from the ANDSF 40 that has received the access network information request from the communication terminal (UE) 10, acquires the subscriber information of the HSS 50 and the usage amount from the OCS, and transmits the identification information of the radio access network to the communication terminal. It is determined whether or not to notify (UE) 10.
  • the PCRF 60 acquires charging contract information from the HSS 50 (SPR / UDR 51), and acquires the usage amount of the charging target period from the OCS 80.
  • the determination of the presence / absence of notification based on the combination of the subscriber's billing type and the communication amount of the communication terminal (UE) 10 is the same as that shown in FIG.
  • FIG. 6 is a diagram illustrating an example of a typical sequence according to the second embodiment. It is assumed that the communication terminal (UE) 10 uses a 3GPP access network (mobile phone wireless network) before the start of the procedure of FIG. 6, and enters a range of an access point of a wireless access network such as Wi-Fi.
  • 3GPP access network mobile phone wireless network
  • Step 1 The communication terminal (UE) 10 transmits an access network information request to the ANDSF 40.
  • Step 2 When the ANDSF 40 receives an access network information request from the communication terminal (UE) 10 in the inter-terminal signal processing unit 401 (see FIG. 2) of the ANDSF 40, the inter-network signal processing unit 402 ( A notification determination request is transmitted to the PCRF 60 via FIG.
  • Step 3 The PCRF 60 transmits the subscriber information request to the SPR of the HSS 50, receives the subscriber information, confirms the charging form from the subscriber information included in the subscriber information response, acquires the usage information from the OCS, Based on the combination of the billing form of the subscriber and the traffic, for example, based on the determination table of FIG. 4, it is determined whether or not notification of the identification information of the wireless network to the communication terminal (UE) 10 is necessary, and a notification determination response The determination result is included in and returned to the ANDSF 40.
  • Step 4 The ANDSF 40 confirms the information of the communication determination response from the PCRF 60.
  • Step 5 When the policy determination / data construction unit 404 of the ANDSF 40 notifies the wireless network identification information from the determination result of the presence / absence of notification of the wireless network identification information, the wireless network identification information (for example, SSID) is transmitted to the communication terminal (UE) 10. Etc.). If the policy determination / data construction unit 404 of the ANDSF 40 does not notify the identification information of the wireless network, the policy judgment / data construction unit 404 constructs a message that does not include the identification information of the other wireless access network.
  • the wireless network identification information for example, SSID
  • Step 6 The ANDSF 40 includes the constructed message in the access network information response (Access Network Information Response), and transmits it from the inter-terminal communication processing unit 401 (see FIG. 2) of the ANDSF 40 to the communication terminal (UE) 10.
  • access network information response Access Network Information Response
  • Step 7 The communication terminal (UE) 10 is connected to a wireless access network (another wireless access network) such as Wi-Fi based on the information included in the received access network information response (Access Network Information Response) transmitted from the ANDSF 40. Determine switching.
  • a wireless access network another wireless access network
  • Wi-Fi Access Network Information Response
  • FIG. 6 the PULL procedure for making an access network information request from the communication terminal (UE) 10 to the ANDSF 40 has been described.
  • the PUSH procedure for notifying the communication terminal (UE) 10 of the access network information when the ANDSF 40 is activated has similar effects. Play.
  • FIG. 7 is a diagram illustrating a system configuration of the third embodiment.
  • a flag indicating whether or not to notify other wireless network identification information to the subscriber information (Subscriber Profile) held in the SPR / UDR 51 of the HSS 50 (flag information in a record corresponding to the subscriber ID) Add a column). For example, when the flag is on, other wireless network identification information is notified, and when the flag is off, other wireless network identification information is not notified. Then, when the billing mode is set in the billing server (OCS80 / OFCS90), when the communication amount of the subscriber terminal reaches a certain threshold value, the notification is set to the HSS 50.
  • the HSS 50 When a notification is received from the billing server (OCS80 / OFCS90), the HSS 50 operates a flag indicating whether or not to notify the identification information of another wireless network using the determination logic shown in FIG.
  • the ANDSF 40 receives an access network information request (Access Network Information Request) from the communication terminal (UE) 10
  • the ANDSF 40 requests subscriber information from the SPR / UDR 51 of the HSS 50 and determines whether or not to notify the subscriber information. The notification of the communication terminal (UE) 10 is determined.
  • FIG. 8 is a diagram illustrating an example of a typical sequence according to the third embodiment.
  • Step 1 The billing server (OSC80 / OFCS90) is set so that the communication amount of the communication terminal (UE) 10 is notified to the HSS 50 at a predetermined threshold.
  • Step 2 In the accounting server (OSC80 / OFCS90), the aggregated communication amount of the communication terminal (UE) 10 reaches a predetermined threshold.
  • Step 3 The accounting server (OSC 80 / OFCS 90) notifies the HSS 50 of the above.
  • Step 4 When the notification is received from the accounting server (OSC80 / OFCS90), the HSS 50 operates a flag indicating whether to notify the identification information of another network (radio access network) included in the SPR / UDR51.
  • the accounting server OSC80 / OFCS90
  • the communication terminal (UE) 10 uses a 3GPP network (mobile phone wireless network) and is within the range of an access point of a wireless access network such as Wi-Fi.
  • 3GPP network mobile phone wireless network
  • Step 5 The communication terminal (UE) 10 transmits an access network information request to the ANDSF 40.
  • Step 6 The ANDSF 40 transmits a subscriber data request (User Data Request) to the SPR / UDR 51 of the HSS 50.
  • a subscriber data request User Data Request
  • Step 7 The SPR / UDR 51 of the HSS 50 transmits a subscriber data response (User Data Response) to the ANDSF 40.
  • a subscriber data response User Data Response
  • Step 8 The ANDSF 40 confirms the value of the flag indicating whether or not to notify in the subscriber information, and determines whether or not the communication terminal (UE) 10 is notified of the identification information of another radio access network.
  • Step 9 The ANDSF 40 constructs notification information when notifying the communication terminal (UE) 10 of identification information of another radio access network.
  • Step 10 The ANDSF 40 includes the notification information in the access network information response (Access Network Information Response) and transmits it to the communication terminal (UE) 10.
  • access network information response Access Network Information Response
  • Step 11 The communication terminal (UE) 10 determines switching from the 3GPP access network to another radio access network based on the notification information from the ANDSF 40.
  • the communication terminal (UE) 10 is not limited to a smartphone as long as it has a function of connecting to a mobile communication network and a wireless access network such as Wi-Fi. Digital Assistants), mobile terminals, and fixed terminals.
  • the PULL procedure for making an access network information request from the communication terminal (UE) 10 to the ANDSF 40 has been described.
  • the PUSH procedure for notifying the communication terminal (UE) 10 of the access network information when the ANDSF 40 is activated has the same effect. Play.
  • Communication terminal (UE: terminal, communication terminal) 20 3GPP network (mobile network) 30 Non-3GPP network (other wireless networks) 40 ANDSF (access network discovery selection) 50 HSS (Home Subscriber Server) 51 SPR / UDR 60 PCRF 70 PDN GW / GGSN 71 PCEF 80 OCS 90 OFCS 100 Network Device 401 Inter-terminal Signal Processing Unit 402 Network Device Signal Processing Unit 403 Radio Base Station Data Management Unit 404 Policy Judgment / Data Construction Unit 411 Terminal Interface 412 Network Device Interface

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/JP2013/070319 2012-07-27 2013-07-26 通信システムとノード装置と方法とプログラム Ceased WO2014017630A1 (ja)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BR112015000812A BR112015000812A2 (pt) 2012-07-27 2013-07-26 sistema de comunicação, aparelho de nó, programa e método de comunicação
US14/414,292 US20150201371A1 (en) 2012-07-27 2013-07-26 Communication system, node apparatus, communication method and program
IN11042DEN2014 IN2014DN11042A (enExample) 2012-07-27 2013-07-26
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