WO2009092306A1 - Procédé de sélection de réseau, équipement d'élément de réseau, et système de réseau - Google Patents

Procédé de sélection de réseau, équipement d'élément de réseau, et système de réseau Download PDF

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Publication number
WO2009092306A1
WO2009092306A1 PCT/CN2009/070053 CN2009070053W WO2009092306A1 WO 2009092306 A1 WO2009092306 A1 WO 2009092306A1 CN 2009070053 W CN2009070053 W CN 2009070053W WO 2009092306 A1 WO2009092306 A1 WO 2009092306A1
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WO
WIPO (PCT)
Prior art keywords
asn
list
host
nsp
network
Prior art date
Application number
PCT/CN2009/070053
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English (en)
Chinese (zh)
Inventor
Wenliang Liang
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009092306A1 publication Critical patent/WO2009092306A1/fr

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Classifications

    • 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

Definitions

  • Network selection method Network element device and network system
  • the present invention relates to the field of communications technologies, and in particular, to a network selection method, a network element device, and a network system.
  • FIG. 1 is a schematic diagram of a networking structure provided by the prior art.
  • G-MS Gateway Mobile Station
  • ASN Access Service Network
  • HOST host
  • CSN Connective Service Network
  • the network selected by the G-MS cannot meet the requirements of the HOST for subsequent access, such as not being able to roam, or not enjoying a certain service, then it is impossible to provide quality services to the widest possible range of users.
  • the technical problem to be solved by the embodiments of the present invention is to provide a network selection method, a network element device, and a network system, which enable the G-MS to select an ASN access according to the requirements of the host.
  • a method of network selection including:
  • a network element device including:
  • a host information obtaining unit configured to obtain a list of service networks that can provide services for the host
  • an ASN information acquiring unit configured to obtain a list of service networks that the ASNs that are accessible to the host are connectable
  • An ASN selection unit configured to select an ASN according to the service network list that can serve the host and the list of service networks that the accessible ASN can connect to;
  • the messaging unit is configured to perform information interaction with the selected ASN to access the selected ASN.
  • a network system including a G-MS, an ASN, and a host, wherein
  • the G-MS is configured to receive a list of service networks that are sent by the host and provide services for the host; obtain a list of service networks that the ASN can connect to; and select a service network that can provide services for the host Selecting an ASN access with a list of service networks connectable to the accessible ASN;
  • the host is configured to send, to the G-MS, the list of service networks that can provide services for the host.
  • the network element device in the embodiment of the present invention selects ASN access according to the service network list that can provide services for the host and the service network list that the ASN can connect to, and enables the accessed ASN and the host to provide services.
  • the business network connection can meet the business requirements of the host and provide high-quality services for the host.
  • FIG. 1 is a schematic diagram of a multi-host networking provided by the prior art
  • FIG. 2 is a structural diagram of a WiMAX network according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a network selection method according to Embodiment 1 of the present invention.
  • FIG. 4 is a structural diagram of a network element device according to Embodiment 2 of the present invention.
  • An embodiment of the present invention provides a method for network selection, where the method includes: receiving subscription information sent by one or more hosts, where the subscription information carries a list of service networks that can provide services for the corresponding host; Access service network ASN A list of service networks that can be connected; ASN access is selected based on a list of service networks that can serve the host and a list of service networks to which the ASN can connect.
  • WiMAX World Interoperability for Microwave Access
  • the list of service networks that can provide services for the corresponding host is a network service provider that can provide services for the corresponding host (Network Service). Provider, NSP) list, the list of ASN connectable service networks is an ASN-connectable NSP list.
  • a WiMAX network includes a Network Access Provider (NAP) and a Network Service Provider (NSP).
  • NAP Network Access Provider
  • NSP Network Service Provider
  • One NAP may include multiple ASNs
  • one NSP may include multiple CSNs.
  • the connection between the ASN and the CSN may be a mesh connection, one ASN may be connected to multiple CSNs, and one CSN may also be connected to multiple ASNs.
  • an embodiment of the present invention provides a network selection method, including:
  • Step 301 The G-MS obtains an NSP list that each ASN can connect to.
  • Each ASN in the network broadcasts a NSP list that can be connected to it. After receiving the broadcast message sent by the ASN that can be accessed by the GSN, the G-MS obtains an NSP list that can be accessed by each ASN according to the corresponding broadcast message.
  • This step may also be performed after the G-MS receives the local authentication request in the subsequent step 302-step 303 and performs local authentication on the host, without affecting the implementation of the embodiment of the present invention.
  • Step 302 One or more HOSTs initiate a local authentication request to the G-MS, where the request carries the respective subscription information, and the subscription information may include an NSP list that can provide services for the corresponding HOST, where the NSP list that can provide services for the HOST
  • the method may include: at least one of the HSP signed by the HOST, the roamable NSP, the subscription service, or the NSP corresponding to the provider of the subscription service.
  • the NSP corresponding to the contract service and the contract service provider is the NSP providing the service.
  • Step 303 The G-MS performs local authentication on each host, and sends a local authentication response message to the corresponding host.
  • Step 304 The G-MS compares each NSP list that can be served by the host with the NSP list that can be connected to the same ASN, and the NSP list that can serve the host has the same NSP as the NSP list that can be connected to the ASN.
  • the host matches the ASN, and obtains the number of hosts that match the ASN; and selects the ASN with the largest number of hosts that can match.
  • the following example shows how G-MS chooses ASN: Assume that three HOSTs want to access the network, which can be
  • the NSP list provided by the HOST1 service includes: a contracted NSP1, a roamable NSP2, and an NSP3 corresponding to the subscription service;
  • the NSP list that can provide services for HOST2 includes: a contracted NSP3, a roamable NSP4, and a subscription service corresponding to the NSP3.
  • NSP5 The list of NSPs that can provide services for HOST3 includes: NSP6 for subscription, NSP7 for roaming, NSP8 for subscription service; G-MS can access two ASNs, and the list of NSPs that can be connected to the first ASN includes: NSP1, NSP2, NSP3; The list of NSPs that the second ASN can connect to include: NSP1, NSP3, NSP6;
  • the list of NSPs that can provide services for HOST1, the list of NSPs that can serve HOST2, and the list of NSPs that can serve HOST3 are compared with the list of NSPs that can be connected to the first ASN, respectively, when the list of NSPs that can provide services for HOST
  • the HOST is considered to match the first ASN. Therefore, HOST1 and HOST2 match the first ASN; and the NSP list that can serve HOST1 is added.
  • the NSP list that can provide services for HOST2 and the NSP list that can provide services for HOST3 are respectively compared with the NSP list that can be connected to the second ASN, and HOST1, HOST2, and HOST3 are matched with the second ASN. Therefore, the second ASN is selected as the ASN to be accessed.
  • the NSP list that can provide services for HOST1 includes: NSP1 that is subscribed, NSP that can roam, and NSP3 that corresponds to the subscription service.
  • the list of NSPs that can provide services for HOST2 includes: NSP3 for signing, NSP4 for roaming, NSP5 for signing service; NSP list for HOST3 service: NSP6 for signing, NSP7 for roaming, signing service The corresponding NSP8; NSP list that can provide services for HOST4 includes: NSP7 subscribed, NSP8 roamable, NSP9 corresponding to the subscription service; G-MS can access two ASNs, NSPs connectable by the first ASN
  • the list includes: NSPK NSP2, NSP3;
  • HOST1, HOST2 and HOST3 are matched with the second ASN, but HOST4 does not match the two ASNs, so HOST4 cannot be accessed, and G-MS selects the second ASN access.
  • the G-MS in the embodiment of the present invention selects ASN access according to the service network list that can provide services for the host and the list of service networks that the ASN can connect to, and selects the ASN access.
  • the incoming ASN is connected to a service network that can serve multiple hosts, which can satisfy many The business requirements of each host provide quality services for multiple hosts.
  • Step 305 The G-MS sends an access authentication request to the selected ASN, and receives an access authentication response that is sent by the ASN and indicates that the G-MS authentication succeeds.
  • Step 306 After the authentication is passed, the G-MS sends the ASN selection information to the one or more hosts, where the ASN selection information carries the NSP list that the ASN can access.
  • Step 307 The one or more hosts HOST select an NSP that can provide services for itself in the received NSN list that can be connected, and send a HOST access authentication request to the G-MS, where the request carries the selected NSP logo.
  • NSP list that the second ASN can connect to includes: NSP1, NSP3, NSP6, HOST1 can select NSP1 or NSP3, HOST2 selects NSP3, and HOST3 selects NSP6.
  • Step 308 The G-MS sends an access authentication request of the one or more host HOSTs to the ASN, where the access authentication request carries the identifier of the NSP selected by each host.
  • Step 309 The ASN obtains the CSN to be accessed by the HOST according to the NSP identifier, and sends an access authentication request to the CSN.
  • Step 310 The CSN sends an access authentication response to the ASN.
  • Step 311 The ASN sends an access authentication response to the G-MS.
  • Step 312 The G-MS sends an access authentication response to the one or more hosts.
  • the method for selecting the access ASN by the G-MS is as follows: After the step 304, the ASN establishes an air interface resource with the G-MS, and after the G-MS accesses the ASN, further, If the G-MS detects that the connected HOST has been retired, it releases the air interface resource with the ASN, and sends a deregistration request message (DREG-REQ) to the ASN. After receiving the message, the ASN releases the G-MS. Air resource between.
  • the ASN can detect whether multiple hosts connected to the G-MS are backed out. If multiple hosts that have been accessed by the G-MS are detected to be retired, the G-MS is retired. , release the air interface resources with the G-MS, avoid waste of air interface resources, and reduce the cost of G-MS operators.
  • the ASN connection is selected when the HOST is accessed. After detecting that the accessed HOST is removed, the air interface resource between the G-MS and the ASN is released, and the G-MS and the ASN are not required to be maintained.
  • the connection saves air interface resources while reducing the billing cost of G-MS operators.
  • a second embodiment of the present invention provides a network element device, where the network element device is a G-MS, and the network element device includes:
  • the host information obtaining unit 401 is configured to obtain a list of service networks that can provide services for the host, and specifically configured to receive subscription information from the host, where the subscription information carries a list of service networks that can provide services for the corresponding host, where The list of service networks that can provide services for the corresponding host is an NSP list that can provide services for the corresponding host;
  • the ASN information obtaining unit 402 is configured to obtain a list of service networks that each ASN can connect to, and the list of service networks that the ASN can connect to may be an NSP list that the ASN can connect to;
  • the ASN selecting unit 403 is configured to select an ASN according to a service network list that can serve the host and a list of service networks that the accessible ASN can connect to;
  • the messaging unit 404 is configured to perform information interaction with the selected ASN to access the selected ASN.
  • the ASN information obtaining unit 402 includes:
  • the broadcast message receiving unit is configured to receive the broadcast message sent by the accessible ASN
  • the NSP list obtaining unit is configured to obtain the NSP list that the ASN can connect according to the corresponding broadcast message.
  • the ASN selection unit 403 includes:
  • a matching unit configured to compare each NSP list that can serve the host with an NSP list that can be connected to the same ASN, where the NSP list that can serve the host is the same as the NSP list that can be connected to the ASN At the NSP, the host matches the ASN, and obtains the number of hosts that match the ASN;
  • the selection unit is used to select the ASN with the largest number of hosts that can be matched.
  • the ASN selection unit 403 in the second embodiment of the present invention selects the ASN according to the service network list that can serve the host and the service network list that the ASN can connect to, and the ASN access unit 404 accesses the selected ASN. Enable the connected ASN with services that can serve multiple hosts Network connection, can meet the business requirements of multiple hosts, and provide quality services for multiple hosts.
  • the network element device further includes:
  • the NSP list sending unit 405 is configured to send the selected ASN connectable NSP list to the host.
  • the network element device may further include:
  • a detecting unit configured to detect whether the host has been retired
  • the de-logging request sending unit is configured to send a de-log-out request message to the accessed ASN to release the air interface resource with the ASN after detecting that the host has retired.
  • the device also includes:
  • the host retiring notification receiving unit is configured to receive, after detecting that the host accessed by the network element device exits the network, the notification message that the host has been retired;
  • a resource release unit configured to release the air resource between the ASN and the ASN after receiving the notification message.
  • the network element device provided by the second embodiment of the present invention selects an ASN connection when the HOST is accessed. After detecting that the accessed HOST is removed, the air interface resource between the G-MS and the ASN is released. Maintain the connection between G-MS and ASN, save air interface resources, and reduce the billing cost of G-MS operators.
  • a third embodiment of the present invention provides a network system, including a G-MS, an ASN, and a host, where
  • the G-MS is configured to receive the subscription information from the host, where the subscription information carries a list of service networks that can provide services for the corresponding host, and obtains a list of service networks that the ASN can connect to; A list of service networks providing services and a list of service networks that the ASN can connect to, and selecting ASN access;
  • the host is configured to send the foregoing subscription information to the G-MS, select an NSP that can provide services for itself in the NSP list that can be connected to the received ASN, and send, by using the G-MS, the access that carries the identifier of the selected NSP to the ASN.
  • Authentication request ;
  • the ASN is configured to select a CSN according to the NSP identifier in the access authentication request, and send an access authentication request of the host to the CSN.
  • the G-MS in the network system provided by Embodiment 3 of the present invention selects ASN access according to a service network list that can provide services for the host and a service network list that can be connected to the ASN that can be accessed by itself.
  • the connected ASN is connected to a service network that can serve multiple hosts, which can meet the service requirements of multiple hosts and provide high-quality services for multiple hosts.
  • the G-MS is further configured to send a logout request message to the ASN after detecting that the host is disconnected from the network.
  • the ASN is further configured to release the air interface resource between the G-MS and the G-MS after receiving the logout request message.
  • the ASN is further configured to: after detecting that the host accessed by the G-MS is disconnected from the network, release the air interface resource with the G-MS.
  • the network system provided by the third embodiment of the present invention selects the ASN connection when the HOST is accessed, and releases the air interface resource between the G-MS and the ASN after detecting that the accessed HOST is left, and does not need to be maintained.
  • the connection between the G-MS and the ASN saves air interface resources while reducing the billing cost of G-MS operators.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon la présente invention, un procédé de sélection de réseau consiste à obtenir une liste de réseaux de service susceptibles de fournir des services à des hôtes, à obtenir une liste de réseaux de service auxquels peut être lié un réseau de service d'accès (ASN) auto-accessible, et à sélectionner un réseau ASN devant être accédé en fonction de la liste de réseaux de service susceptibles de fournir des services aux hôtes et de la liste de réseaux de service auxquels peut être lié le réseau ASN accessible. Un équipement d'élément de réseau comprend une unité d'obtention d'informations relatives aux hôtes servant à obtenir une liste de réseaux de service susceptibles de fournir des services aux hôtes, une unité d'obtention d'informations relatives au réseau ASN servant à obtenir une liste de réseaux de type libre-service auxquels peut être lié le réseau ASN accessible, une unité de sélection de réseau ASN servant à sélectionner un réseau ASN en fonction de la liste de réseaux de service susceptibles de fournir des services aux hôtes et de la liste de réseaux de service auxquels peut être lié le réseau ASN accessible, et une unité de réception et de transmission de message servant à permettre un échange d'information avec le réseau ASN sélectionné afin d'accéder au réseau ASN sélectionné.
PCT/CN2009/070053 2008-01-10 2009-01-07 Procédé de sélection de réseau, équipement d'élément de réseau, et système de réseau WO2009092306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810000355.5 2008-01-10
CN2008100003555A CN101483904B (zh) 2008-01-10 2008-01-10 网络选择方法、网元设备和网络系统

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CN102625468A (zh) * 2011-10-18 2012-08-01 北京小米科技有限责任公司 一种移动互联网接入方法
CN105519218A (zh) * 2014-08-22 2016-04-20 华为技术有限公司 一种pdp/pdn上下文的激活方法、设备及系统
CN111800776B (zh) * 2019-04-08 2022-01-28 华为技术有限公司 一种数据处理的方法及装置
EP4147492A4 (fr) * 2020-06-24 2023-06-21 ZTE Corporation Procédé de diffusion de services de radiocommunication

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Publication number Priority date Publication date Assignee Title
CN1756209A (zh) * 2004-09-29 2006-04-05 上海贝尔阿尔卡特股份有限公司 用户终端获得多个服务的方法、宽带接入设备及系统
CN1788456A (zh) * 2003-06-30 2006-06-14 意大利电信股份公司 通信网中网络选择的方法、相关网络及其计算机程序产品
WO2006133720A1 (fr) * 2005-06-11 2006-12-21 Telefonaktiebolaget Lm Ericson (Publ) Appareil et procede pour selectionner un reseau visite
CN101056233A (zh) * 2006-04-13 2007-10-17 华为技术有限公司 一种多主机网络架构及网关设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1788456A (zh) * 2003-06-30 2006-06-14 意大利电信股份公司 通信网中网络选择的方法、相关网络及其计算机程序产品
CN1756209A (zh) * 2004-09-29 2006-04-05 上海贝尔阿尔卡特股份有限公司 用户终端获得多个服务的方法、宽带接入设备及系统
WO2006133720A1 (fr) * 2005-06-11 2006-12-21 Telefonaktiebolaget Lm Ericson (Publ) Appareil et procede pour selectionner un reseau visite
CN101056233A (zh) * 2006-04-13 2007-10-17 华为技术有限公司 一种多主机网络架构及网关设备

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CN101483904B (zh) 2010-08-18

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