WO2007007124A1 - Procede permettant de detecter des donnees de liaison descendante destinees a un terminal mobile - Google Patents

Procede permettant de detecter des donnees de liaison descendante destinees a un terminal mobile Download PDF

Info

Publication number
WO2007007124A1
WO2007007124A1 PCT/GB2006/050185 GB2006050185W WO2007007124A1 WO 2007007124 A1 WO2007007124 A1 WO 2007007124A1 GB 2006050185 W GB2006050185 W GB 2006050185W WO 2007007124 A1 WO2007007124 A1 WO 2007007124A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
base station
network
downlink data
mobile
Prior art date
Application number
PCT/GB2006/050185
Other languages
English (en)
Inventor
Michael Gallagher
Ian Lasseter Phillips
Original Assignee
Nokia Siemens Networks Gmbh & Co. Kg
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 Nokia Siemens Networks Gmbh & Co. Kg filed Critical Nokia Siemens Networks Gmbh & Co. Kg
Publication of WO2007007124A1 publication Critical patent/WO2007007124A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/08—User notification, e.g. alerting and paging, for incoming communication, change of service or the like using multi-step notification by increasing the notification area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/06—Interfaces between hierarchically different network devices between gateways and public network devices

Definitions

  • This invention relates to a method of detecting downlink (DL) data destined for a mobile terminal (MT) in a state which temporarily precludes receipt of the downlink data on a network, in particular for networks using mobile internet protocol (mobile IP).
  • DL downlink
  • MT mobile terminal
  • mobile IP mobile internet protocol
  • a centralised paging solution may enhance the robustness of this process, but the problem exists of how to temporarily redirect DL data to a centralised node so that the sleeping MT can be paged.
  • traditional 2 nd and 3 rd generation networks operate a centralised paging approach, they also direct paging and mobility centrally, under network control, so that the problem of losing track of the base station that the mobile station is currently resident at, is avoided.
  • Networks that allow mobility to be controlled by the MT for example, using Mobile IP either directly or by proxy, need to solve this problem, but there is no standard approach which is directly applicable.
  • a method of detecting downlink data destined for a mobile terminal in a state which temporarily precludes receipt of the downlink data on a network comprises sending an update message from the mobile terminal to a first base station; notifying the base station of a mobile terminal identifier; on receipt of the notification, creating a virtual mobile terminal in the network; registering the mobile terminal identifier and associated virtual mobile terminal location with the network; and redirecting received downlink data from the network to the virtual mobile terminal.
  • the mobile terminal identifier is a mobile internet protocol identifier.
  • the update message is a location update message.
  • the redirection of received downlink data comprises tunnelling downlink data to the paging function; and causing the paging function to issue a page request to one or more base stations.
  • the page request is first issued to the base station which last received the location update message from the mobile terminal; and if the mobile terminal does not respond to the transmitted page request message, then page requests are sent to a number of base stations within a predetermined distance of the first base station.
  • Any device requiring services from the network can operate this method, for example dedicated meter reading devices, but preferably the mobile terminal is one of a laptop, a personal digital assistant, or a mobile phone. These may incorporate the functionality of dedicated devices.
  • Figure 1 illustrates a conventional approach to communication as a mobile device moves between base stations on a network
  • Figure 2 illustrates location tracking using the method of the present invention.
  • Figure 3 is a block diagram of a paging function using the method of the present invention.
  • This invention proposes a scheme for the detection of downlink (DL) data for mobile terminals while they are temporarily unable to receive the data, for example when a terminal is in a sleep state.
  • the invention is particularly directed to mobile networks operating mobility protocols specific to the technology of the mobile network, an example of which is networks using Mobile IP, but other mobility protocols can be used.
  • Fig. Ia illustrates a mobile device 1 in sleep mode, near to a first base station 2, BS-I, which can communicate with a mobile network 3. No data passes from the mobile device to the base station in sleep mode.
  • the mobile device has moved, so that it is now within the vicinity of a new base station 4, BS-2, so the mobile device 1 wakes up and notifies the network 3, via this base station 4 of the current location of the mobile device.
  • New base station 4, BS-2 sends an indication to the network 3 that the mobile device resides within its territory.
  • the network causes one or more base stations 4 to page the mobile device, which then wakes up to receive data.
  • Figs. 2 and 3 illustrate how the present invention deals with a device which is temporarily unable to detect downlink data in a system, so addressing the problems associated with a decentralised approach.
  • downlink data addressed to a particular mobile device is sent to the base station to which that mobile device was last connected and that base station detects the data and forwards the data to the most current location which it has.
  • the most current location is obtained by tracking movement of the device since its last connection, so that every time the mobile device comes into range of a new base station, the mobile device wakes up and sends a message to itself, while the network still thinks that the mobile device is connected to the original base station.
  • the paging function within the network relies on a virtual representation of the mobile device created within the network which is able to receive, and thus detect, DL data on behalf of the real, but sleeping MT.
  • a virtual representation of the mobile device created within the network which is able to receive, and thus detect, DL data on behalf of the real, but sleeping MT.
  • This process is used for location tracking, i.e. maintaining a mapping of a sleeping MT to its location, is illustrated in Fig. 2.
  • a mobile terminal enters a sleep state. This may be done so 'silently', i.e. such that no other central network node needs to be informed.
  • the MT 1 moves to a new base station 10 and sends a Location Update (LU) message 9 to the base station.
  • An expanded LU message 11 is sent from the base station to a centralised paging function (PF) 8 within the network.
  • the expanded message contains a mobile terminal identifier, for example, an internet protocol (IP) address of the MT 1 and location information that relates to the MT's position.
  • the PF creates a virtual mobile terminal 14, also known as an emulated mobile client (EMC), or Mobile IP client in the example where Mobile IP is used as the mobility protocol, and this virtual terminal represents the MT while it is in the sleep state.
  • EMC emulated mobile client
  • the virtual mobile terminal 14 registers with the Mobile IP Home Agent 18 responsible for the MT, such that subsequent DL data is tunnelled to the PF 8, acting as a Mobile IP Foreign Agent 16.
  • the means used to identify and locate the Home Agent is not specified here.
  • Mobile IP registration may actually be performed by the MT 1 or an entity acting on the MT's behalf that is not the EMC 14; although an EMC instance still needs to be created to act as the MT after this registration, and the registration also needs to redirect DL data to the PF, acting here as a Mobile IP Foreign Agent.
  • Fig. 2 shows how the paging function 8 and its components carry out location tracking.
  • a tracking agent (TA) 12 is responsible for receiving the expanded LU messages 11 from the base station 10 and keeping a record of the MT IP address, or other identifier, and location information.
  • the virtual mobile terminal 14 is created to represent the MT 1 while in sleep state and the MIP Foreign Agent 16 is used to assist in Mobile IP registration with the Mobile IP Home Agent and to terminate DL Mobile IP tunnels.
  • the TA 12 Upon receipt from a base station 10 of an expanded LU message 11 in the paging function 8, the following steps occur.
  • the TA 12 receives the expanded LU message 11, and may authenticate it by interaction with a central server (not shown).
  • the TA 12 causes 13 a new EMC 14 to be created, to represent the MT 1.
  • the EMC 14 registers with the MIP Home Agent 18, or other mobility protocol anchor, using the Home Address of the MT.
  • the second stage of the process is paging, i.e. the process of signalling to the MT to wake up at its current location, be that a specific sector, base station, or group of base stations.
  • An example of a Page Request operation may be summarised in the following steps, illustrated in Fig.3.
  • the Mobile IP Home Agent 18, or other mobility protocol anchor receives 20 DL data for the MT 1.
  • the Home Agent 18 tunnels 21 the data to the MIP Foreign Agent 16, resident at the paging function 8.
  • the PF issues a Page Request 26 to the base station 10 that the last Location Update message was received from and if the MT 1 does not respond within a configurable time period, the PF 8 issues Page Requests 26 to the location that the MT last issued a location update from, which may constitute several base stations 10, 11, 12.
  • the MT 1 receives the Page Request 26 and wakes up, performing Mobile IP re- registration with the Home Agent 18.
  • the serving base station issues an indication to the PF of the current serving base station and the PF 8 tunnels all received data for the MT 1 to the serving base station.
  • the paging function components involved in generation of page requests include the emulated mobile client (EMC) 14, created to represent the MT while in sleep state; the tracking agent (TA) 12, responsible for recording the current location of the MT 1; the paging agent (PA) 24, responsible for liaising 25 with the TA to determine the base station, or base station area, that the MT last updated its location from, for resolving the base station area (if required) to a set of one or more base stations 10, 11, 12, and for generating and sending Page Request messages 26 to this set of base stations.
  • the MIP Foreign Agent 16 is used to terminate DL Mobile IP tunnels 21 from the Home Agent 18, and forward 22 received DL data to the appropriate EMC 14.
  • the Mobile IP Home Agent 18 receives 20 DL data destined for the sleeping MT 1.
  • the Home Agent tunnels 21 the DL data to the PF Mobile IP Foreign Agent (FA) 16 and the Mobile IP FA recovers the DL data from the Mobile IP tunnel 21, then forwards the data to the EMC 14 which is currently acting on the MT's behalf.
  • the EMC sends 23 a trigger signal to the PA 24 which retrieves 25 current location information from the TA 12, and generates a list of 'target' base stations 10, 11, 12.
  • Page Request messages 26 are generated and sent first to the last known base station, then to all base stations within the last known location sub-area, and finally to all base stations within the last known location area.
  • a confirmation is sent from the currently serving base station of the (now active) MT to the EMC. All received DL data is tunnelled from the EMC to the base station, which then forwards the data to the MT. The PF then deletes the EMC instance.

Landscapes

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

Abstract

L'invention concerne un procédé permettant de détecter des données de liaison descendante au niveau d'un terminal mobile dans un état qui empêche temporairement la réception de ces données de liaison descendante sur un réseau (3). Ledit procédé consiste: à envoyer un message de mise à jour provenant du terminal mobile à une première station de base (10); à notifier à cette station base un identificateur de terminal mobile; à créer, à la réception de cette notification, un terminal mobile (14) virtuel dans le réseau; à enregistrer l'identificateur du terminal mobile et la localisation du terminal mobile virtuel dans le réseau; et à réorienter les données de liaison descendante provenant du réseau vers le terminal mobile virtuel.
PCT/GB2006/050185 2005-07-11 2006-07-04 Procede permettant de detecter des donnees de liaison descendante destinees a un terminal mobile WO2007007124A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0514088.4 2005-07-11
GB0514088A GB2428350B (en) 2005-07-11 2005-07-11 A method of detecting downlink data destined for a mobile terminal

Publications (1)

Publication Number Publication Date
WO2007007124A1 true WO2007007124A1 (fr) 2007-01-18

Family

ID=34896967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/050185 WO2007007124A1 (fr) 2005-07-11 2006-07-04 Procede permettant de detecter des donnees de liaison descendante destinees a un terminal mobile

Country Status (2)

Country Link
GB (1) GB2428350B (fr)
WO (1) WO2007007124A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130078979A1 (en) * 2008-06-26 2013-03-28 Michael Bell Apparatus and methods for enforcement of policies upon a wireless device
NL2022846B1 (en) 2019-04-01 2020-10-08 Pharmafilter B V Separator and method of separating.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028031A1 (fr) * 2000-09-19 2002-04-04 Siemens Aktiengesellschaft Reseau d'acces permettant la transmission de paquets de donnees entre un reseau et un terminal par l'intermediaire d'un systeme de communication radio, et son procede de fonctionnement
WO2003096588A2 (fr) * 2002-04-15 2003-11-20 Flarion Technologies, Inc. Procedes et appareil d'extension d'un ip mobile

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359451A (en) * 2000-02-15 2001-08-22 Motorola Inc Communication network including a virtual terminal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028031A1 (fr) * 2000-09-19 2002-04-04 Siemens Aktiengesellschaft Reseau d'acces permettant la transmission de paquets de donnees entre un reseau et un terminal par l'intermediaire d'un systeme de communication radio, et son procede de fonctionnement
WO2003096588A2 (fr) * 2002-04-15 2003-11-20 Flarion Technologies, Inc. Procedes et appareil d'extension d'un ip mobile

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIEBSCH G RENKER R SCHMITZ NEC NETWORK LABORATORIES EUROPE M: "Paging Concept for IP based Networks", IETF STANDARD-WORKING-DRAFT, INTERNET ENGINEERING TASK FORCE, IETF, CH, no. 1, September 2001 (2001-09-01), XP015034320, ISSN: 0000-0004 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130078979A1 (en) * 2008-06-26 2013-03-28 Michael Bell Apparatus and methods for enforcement of policies upon a wireless device
US8676182B2 (en) * 2008-06-26 2014-03-18 Apple Inc. Apparatus and methods for enforcement of policies upon a wireless device
US20140199985A1 (en) * 2008-06-26 2014-07-17 Apple Inc. Apparatus and Methods for Enforcement of Policies Upon a Wireless Device
US9100813B2 (en) * 2008-06-26 2015-08-04 Apple Inc. Apparatus and methods for enforcement of policies upon a wireless device
US9451448B2 (en) 2008-06-26 2016-09-20 Apple Inc. Apparatus and methods for enforcement of policies upon a wireless device
NL2022846B1 (en) 2019-04-01 2020-10-08 Pharmafilter B V Separator and method of separating.
WO2020204711A1 (fr) 2019-04-01 2020-10-08 Pharmafilter B.V. Séparateur et procédé de séparation

Also Published As

Publication number Publication date
GB0514088D0 (en) 2005-08-17
GB2428350B (en) 2007-07-11
GB2428350A (en) 2007-01-24

Similar Documents

Publication Publication Date Title
CN101455096B (zh) 移动通信网络中发送定位业务请求的方法及系统
US6795705B1 (en) Hot standby protocol for wireless devices
US11303352B2 (en) Systems and methods of paging in GEO satellite-based 5G networks
KR100957355B1 (ko) Ⅰｐ 기반의 무선 이동 통신 시스템에서 고속 페이징시스템 및 방법
EP2109978B1 (fr) Procédés, système et appareil de communication
US9974116B2 (en) Handoff to base station having enhanced capabilities
US7920521B2 (en) Method and system for foreign agent relocation in wireless network
US8538451B2 (en) Location services
US20140105028A1 (en) System and method for reducing paging in utran/geran/e-utran networks when idle signaling reduction is active
TW200908588A (en) Inter-system idle mode mobility
US20100074221A1 (en) Apparatus for controlling handover between heterogeneous networks, method of performing handover between heterogeneous networks, and mobile router
JP2009207157A (ja) 移動局に関する情報の提供
US7907584B2 (en) Access router device, mobility control system, and mobility control method
KR20130028743A (ko) 비－액세스 계층（ｎａｓ）메시지 터널링 동안의 비정상적인 조건들의 원인의 통지
CN102118733A (zh) 一种用户设备请求SMSonly功能时的处理方法及设备
WO2009078565A1 (fr) Procédé pour supporter des interfaces multiples en ipv6 mobile proxy
JP4733746B2 (ja) モバイルインターネットプロトコルの登録または登録抹消方法、および、装置
CN104093138A (zh) 用于移动性代理恢复的方法和设备
WO2007007124A1 (fr) Procede permettant de detecter des donnees de liaison descendante destinees a un terminal mobile
KR100567319B1 (ko) 패킷정합장치간 핸드오프 수행 방법
JP4598946B2 (ja) 移動通信端末管理方法
CN102082997A (zh) 定位方法、系统和装置
KR100642458B1 (ko) 이기종 이동통신시스템에서의 가입자 이동성 관리 방법
KR100918386B1 (ko) 2계층 정보를 이용한 모바일 ｉｐ 망의 핸드오버 지원장치및 방법
US11109345B2 (en) Paging for downlink data transfer in connectionless mode in a mobile system

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 06744365

Country of ref document: EP

Kind code of ref document: A1