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WO2012155749A1 - Procédé et appareil d'acquisition d'informations de position d'utilisateur dans un réseau local sans fil (wlan) - Google Patents

Procédé et appareil d'acquisition d'informations de position d'utilisateur dans un réseau local sans fil (wlan) Download PDF

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Publication number
WO2012155749A1
WO2012155749A1 PCT/CN2012/074235 CN2012074235W WO2012155749A1 WO 2012155749 A1 WO2012155749 A1 WO 2012155749A1 CN 2012074235 W CN2012074235 W CN 2012074235W WO 2012155749 A1 WO2012155749 A1 WO 2012155749A1
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WO
WIPO (PCT)
Prior art keywords
location information
asr
access
location
identifier
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2012/074235
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English (en)
Chinese (zh)
Inventor
黄翔
潘云波
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ZTE Corp
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ZTE Corp
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Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012155749A1 publication Critical patent/WO2012155749A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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 the field of mobile communication technologies, and in particular, to a method and apparatus for acquiring location information of a wireless local area network user. Background technique
  • the host is the host, and the AID (Access Identifier) is used.
  • the access identifier is the identity identifier.
  • the access service router ASR
  • the access router is equipped with a RID (Router Identifier) as the location identifier. All hosts are registered and authenticated by the ASR and access the network. The host accesses the ASR and leaves the ASR. (Identifier and Location Register) Reporting.
  • the ILR stores the mapping relationship between the identity AID of the Host and the RID of the location ⁇ AID, RID>. The ILR also provides a response to the query mapping relationship.
  • the communication between the Host and the Host is encapsulated and routed by the RID on the ASR, and the original packet between the Host and the Host is encapsulated in the Payload.
  • the destination ASR decapsulates the packet and then forwards the original packet to the destination host.
  • the process of forwarding packets in the identity and location network is shown in Figure 2.
  • the process of packet forwarding is as follows: The source ASR (that is, ASR1) performs RID encapsulation on the packet, and then the source ASR and the destination ASR (that is, ASR2). After forwarding the encapsulated packet, the packet is decapsulated on the destination ASR and forwarded to the destination host.
  • the encapsulation format of the packet is divided into two types: the original packet and the RID encapsulated packet.
  • the original packet is forwarded:
  • the access layer of the network is separated from the identity and location, that is, the AID is used between the Host and the ASR.
  • the packet is forwarded as the source address and the destination address.
  • the format of the packet is shown in Figure 3.
  • RID encapsulation packet forwarding The core layer of the identity and location separation network, that is, the packet forwarding after RID encapsulation between the ASR and the ASR.
  • the packet format is shown in Figure 4.
  • WLAN Wireless Local Area Network
  • AC Access Point Control
  • the WLAN and the AP do not correspond to each other.
  • the VAP (virtual AP) or VLAN cannot be used to obtain the precise location of the UE. How does the ASR obtain the precise location of the WLAN user;
  • the ASR is usually responsible for managing access to the identity network users from different ACs. How does the ASR discover the AC to which the terminal access belongs?
  • the technical problem to be solved by the present invention is to provide a method and device for acquiring location information of a wireless local area network user, and obtaining user location information in the identification network without changing the existing WLAN deployment and equipment.
  • the present invention provides a method for obtaining location information of a wireless local area network user, after the identification network user equipment (UE) is accessed by a virtual access point (VAP) to an access service router (ASR), The ASR sends a location information request to an adjacent access point control (AC) to obtain location information of the UE.
  • VAP virtual access point
  • ASR access service router
  • the ASR sends the location information request to an adjacent AC by using a protocol message agreed by the two parties, where the protocol message includes at least access location information.
  • the location information request, the SNMP message includes an identifier of the UE, and the PDU of the SNMP message is a Get or GetNext or GetBulk operation.
  • the location information request sent by the ASR includes the following fields:
  • An identifier field the identifier field being an identifier of the UE; Accessing the location information field, the access location information field is empty.
  • the AC when receiving the location information request of the ASR, the AC queries the location information of the UE in the maintained wireless management information, and returns the location information to the ASR.
  • the location information of the UE includes information of an access point (AP) accessed by the UE.
  • the present invention also provides an apparatus for acquiring location information of a wireless local area network, which is applied to an identity and location separation network, the apparatus includes an ASR, and the ASR includes a location information acquisition module, and the location information acquisition module is configured to: After the identity network UE is accessed by the VAP, the location information request is sent to the neighboring AC to obtain the location information of the UE.
  • the location information obtaining module is configured to: send the location information request to an adjacent AC by using a protocol message agreed by both the ASR and the AC, where the protocol message includes at least access location information.
  • the location information obtaining module is configured to: send the location information request to an adjacent AC by using an SNMP message, where the SNMP message includes an identifier of the UE, and preferably, the device further Including the location information query module in the AC,
  • the location information querying module is configured to: when receiving the location information request of the ASR, query the location information of the UE in the maintained wireless management information, and return the location information to the ASR; where the location information of the UE includes Information about the AP accessed by the UE.
  • the embodiment of the present invention provides a solution for obtaining location information of a WLAN user in the identification network.
  • the location information of the user can be obtained in the identification network without changing the existing WLAN deployment and the device, so that the ASR can learn the connection of the terminal.
  • FIG. 1 is a schematic diagram of an architecture of an identity and location separation network
  • 2 is a schematic diagram of a forwarding process of a packet in an identity and location separated network
  • FIG. 3 is a schematic diagram of an original AID packet
  • Figure 4 is a schematic diagram of a RID encapsulated message
  • Figure 5 is a schematic diagram of incremental deployment through a virtual AP
  • FIG. 6 is a schematic diagram of obtaining WLAN user location information in an identification network according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram of a packet format of an ASR querying an AC for a UE according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of an AC returning to an ASR according to an embodiment of the present invention
  • Schematic diagram of the packet format of the UE location Preferred embodiment of the invention
  • the embodiment provides a method for acquiring location information of a wireless local area network user, and the following technical solutions are used:
  • the ASR accessed by the UE After the ARP is accessed by the VAP, the ASR accessed by the UE sends a location information request to the neighboring AC to obtain the location information of the UE.
  • the AC When receiving the location information request of the ASR, the AC queries the location information of the UE in the maintained wireless management information, and returns the location information to the ASR.
  • the location information of the UE includes information about an AP accessed by the UE.
  • the ASR requests the neighboring AC to obtain the information of the AP accessed by the UE in a mutually agreed protocol.
  • FIG. 6 The process of obtaining the location of the WLAN user in this embodiment is as shown in FIG. 6, which specifically includes the following steps:
  • Step 1 The UE selects a VAP access corresponding to the identification network.
  • the non-identifying network UE accesses the corresponding VAP, for example:
  • VAP-PT The SSID of the VAP1 used by the common WLAN
  • VAP-BZ the SSID of the VAP2 dedicated to the identification network
  • Step 1.b The identity network UE accesses the corresponding VAP, for example:
  • VAP-PT The SSID of the VAP1 used by the common WLAN
  • VAP-BZ the SSID of the VAP2 dedicated to the identification network
  • Step 2 The VAP accesses the ASR, such as a VLAN, to the UE in some manner.
  • ASR such as a VLAN
  • Step 2.a corresponding to the VAP of the ordinary UE, accessing the AC in some way;
  • Step 2.b corresponding to the VAP of the identity network UE, accessing the ASR in some way;
  • the AP and the AC form a VLAN1, which corresponds to a WLAN common UE;
  • the AP and the ASR form a VLAN 2, which corresponds to the identity network UE.
  • VAP1 connects the WLAN common UE to the ACs through VLAN 1.
  • the VAP2 connects the identity network UE to the ASR through VLAN 2.
  • Step 3 The ASR is aware of the identity of the UE, and obtains the location information of the UE from the neighboring ACs by using a protocol agreed by the two parties, such as an SNMP (Simple Network Management Protocol) or other protocol.
  • SNMP Simple Network Management Protocol
  • the PDU is an SNMP message of Get or GetNext (Get Next) or GetBulk (Get Batch) operation, and indicates the identifier of the UE in the PDU, and then goes to the adjacent AC. Get information on which AP the UE is accessing.
  • the PDU is set to the ID in the Variable bindings in GetNext.
  • the MAC of the UE as the query key value, the value of the location field to be obtained is set to 0.
  • Step 4 After receiving the message sent by the ASR to obtain the location information of the identity network, the ACs queries the database containing the UE access location information according to the UE identifier (such as the MAC of the UE) included in the message.
  • the UE identifier such as the MAC of the UE
  • MIB MIB for short
  • a node about the access location may be added to the MIB, so that the value of the node that acquires the access location is added in the SNMP message that the PDU is Get or GetNext or GetBulk.
  • the PDU sent by the ASR is an SNMP message of Get or GetNext or GetBulk
  • the information matching the UE identifier is queried in the MIB according to the UE identifier included in the message PDU.
  • database entries may be used to search for UE information matching the UE identifier. For example, a database entry whose key value is an access location in the database may be added, and the corresponding access may be obtained by querying the entry under the key value. location information.
  • Step 5 After obtaining the information that matches the UE identifier, the AC returns the location information of the UE to the ASR through a protocol agreed by the two parties, such as an SNMP or other protocol.
  • a protocol agreed by the two parties such as an SNMP or other protocol.
  • the AC fills the UE location information obtained by the query into the Response PDU of the SNMP message, and sends the message to the ASR.
  • the flow of this embodiment is consistent with the flow of the first embodiment.
  • the main difference between the two is that the message format used when obtaining the location information is different.
  • the ASR can obtain the UE location information from the AC by using the packet as shown in FIG. 7.
  • the packet mainly includes the following information: packet type (Type), length (length), and UE identifier.
  • UE's Identifier and UE's Location Information (UE's Location).
  • the value of the UE's Location field is an initial value or a default value, but is not limited to the form; and the AC can return the UE location information to the ASR by using the packet as shown in FIG. 8, for example, the response packet.
  • the Type field in the field may take a value of (Type+1), and the UE's Location field fills in the access location information of the UE.
  • the embodiment of the present invention further provides a device for acquiring location information of a WLAN user, which is applied to an identity and location separation network, where the device mainly includes an ASR, and the ASR further includes a location information acquiring module.
  • the location information obtaining module is configured to: after the identity network UE is accessed by the VAP, send a location information request to the neighboring AC to obtain the location information of the UE.
  • the location information acquiring module is configured to send the location information request to an adjacent AC by using a protocol message agreed by the ASR and the AC, where the protocol message includes at least access location information.
  • the location information acquiring module is configured to use an SNMP message to the adjacent AC.
  • Sending the location information request the SNMP message includes an identifier of the UE, and the PDU of the SNMP message is a Get or GetNext or GetBulk operation.
  • the device further includes a location information querying module in the AC, where the location information querying module is configured to: when receiving the location information request of the ASR, query the location information of the UE in the maintained wireless management information, and return And the location information of the UE includes information about an AP accessed by the UE.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the present invention provides a solution for acquiring WLAN user location information in an identification network.
  • the location information of the user can be obtained in the identification network without changing the existing WLAN deployment and equipment, so that the ASR can know.

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

Abstract

La présente invention porte sur un procédé et un appareil d'acquisition d'informations de position d'utilisateur dans un réseau local sans fil (WLAN), dans lequel, après qu'un équipement utilisateur (UE) de réseau identifiant accède à un routeur de service d'accès (ASR) par l'intermédiaire d'un point d'accès virtuel (VAP), l'ASR envoie une demande d'informations de position à une commande de point d'accès adjacente de façon à acquérir les informations de position de l'UE. Avec la présente invention, dans le cas de figure où l'on souhaiterait empêcher le déploiement et les équipements actuels du réseau local sans fil d'être modifiés, l'ASR peut acquérir les informations du point d'accès (AP) accédé par le terminal.
PCT/CN2012/074235 2011-09-16 2012-04-18 Procédé et appareil d'acquisition d'informations de position d'utilisateur dans un réseau local sans fil (wlan) Ceased WO2012155749A1 (fr)

Applications Claiming Priority (2)

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CN201110275383.X 2011-09-16
CN201110275383.XA CN103002572B (zh) 2011-09-16 2011-09-16 一种获取无线局域网用户位置信息的方法及装置

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CN107148578A (zh) * 2014-11-10 2017-09-08 高通股份有限公司 用于使用虚拟接入点的移动装置位置估计的方法、设备及装置

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US20070238448A1 (en) * 2002-10-18 2007-10-11 Gallagher Michael D Method and system of providing landline equivalent location information over an integrated communication system
CN101483675A (zh) * 2008-01-11 2009-07-15 华为技术有限公司 一种网络设备查找方法和网络设备
WO2010074512A2 (fr) * 2008-12-23 2010-07-01 Kt Corporation Système et procédé de prise en charge de mobilité de réseau sur la base d'une séparation identifiant-localisateur
CN102025600A (zh) * 2009-09-17 2011-04-20 中兴通讯股份有限公司 一种数据传输、接收的方法及系统及路由器

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US7408907B2 (en) * 2002-09-11 2008-08-05 Cisco Technology, Inc. System and method for management of a shared frequency band using client-specific management techniques
CN101123536B (zh) * 2007-09-19 2010-12-15 北京交通大学 实现一体化网络位置管理的方法
CN101557414B (zh) * 2008-04-10 2012-07-04 中国移动通信集团公司 基于wlan的定位方法、设备及系统

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US20070238448A1 (en) * 2002-10-18 2007-10-11 Gallagher Michael D Method and system of providing landline equivalent location information over an integrated communication system
CN1910861A (zh) * 2004-01-09 2007-02-07 克雷耐特体系股份有限公司 公共接入点
CN101483675A (zh) * 2008-01-11 2009-07-15 华为技术有限公司 一种网络设备查找方法和网络设备
WO2010074512A2 (fr) * 2008-12-23 2010-07-01 Kt Corporation Système et procédé de prise en charge de mobilité de réseau sur la base d'une séparation identifiant-localisateur
CN102025600A (zh) * 2009-09-17 2011-04-20 中兴通讯股份有限公司 一种数据传输、接收的方法及系统及路由器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107148578A (zh) * 2014-11-10 2017-09-08 高通股份有限公司 用于使用虚拟接入点的移动装置位置估计的方法、设备及装置

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CN103002572B (zh) 2018-04-17

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