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WO2008131581A1 - Système et procédé pour mettre à jour l'uati d'un terminal d'accès - Google Patents

Système et procédé pour mettre à jour l'uati d'un terminal d'accès Download PDF

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Publication number
WO2008131581A1
WO2008131581A1 PCT/CN2007/001391 CN2007001391W WO2008131581A1 WO 2008131581 A1 WO2008131581 A1 WO 2008131581A1 CN 2007001391 W CN2007001391 W CN 2007001391W WO 2008131581 A1 WO2008131581 A1 WO 2008131581A1
Authority
WO
WIPO (PCT)
Prior art keywords
access terminal
uati
subnet
terminal identifier
target subnet
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/CN2007/001391
Other languages
English (en)
Inventor
Sha Lv
Shunlin Chen
Youli Song
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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
Priority to CN2007800001163A priority Critical patent/CN101467399B/zh
Priority to PCT/CN2007/001391 priority patent/WO2008131581A1/fr
Publication of WO2008131581A1 publication Critical patent/WO2008131581A1/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
    • H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/04—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration using triggered events
    • 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
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • the present invention relates generally to wireless communications, and more particularly, to a versatile system and method for updating Unicast Access Terminal Identifier (UATI) for an Access Terminal in a dormant state.
  • UATI Unicast Access Terminal Identifier
  • the HRPD 3.0 protocol in 3GPP2 provides a function of SecondaryColorCode.
  • the AT may be connected with the target subnet through communications between subnets, and a source subnet may call the AT by paging across subnets.
  • FIG. 1 illustrates a diagram of signaling between HRPD subnets.
  • AT 100 establishes a session in a source subnet 102, and saves the session information.
  • ColorCode is 7.
  • Target Subnet 104 has a SecondaryColorCode of 7. Therefore, when AT 100 moves to Target Subnet 104 in a dormant state, AT 100 does not initiate a UATI request, because the ColorCode stored by AT 100 matches the SecondaryColorCode of Target Subnet 104.
  • Source Subnet 102 When Source Subnet 102 needs to page AT 100, paging will first be done within Source Subnet 102. If paging within Source Subnet 102 fails, Source Subnet 102 will find AT 100 in Target Subnet 104 through communications between Source Subnet 102 and Target Subnet 104.
  • Target Subnet 104 may obtain session information of AT 100 in Source Subnet 102 through subnet communications, and establish the connection.
  • an AT moving around in a dormant state from one subnet to another subnet may not update UATI, and signaling between an Access Network (AN) and the AT may be transmitted through subnet communications.
  • AN Access Network
  • the target subnet When the AT in the target subnet initiates a call request, the target subnet will have to retrieve session information associated with the AT from the source subnet, since the target subnet does not have such information. After the session information is transferred to the target subnet, the call set-up may proceed, and A8, AlO and UATI information is updated. This delays call set-up for the AT, and results in poor call connection performance.
  • a system for communication of an access terminal, in a wireless network having a plurality of subnets determines, based upon movement of the access terminal in a dormant state between subnets, and upon ColorCode and SecondaryColorCode values of each subnet, whether or not the access terminal should immediately initiate a Unicast Access Terminal Identifier (UATI) update request, or delay the Unicast Access Terminal Identifier (UATI) update.
  • UATI Unicast Access Terminal Identifier
  • UATI Unicast Access Terminal Identifier
  • FIG. 1 is a diagram illustrating a PRIOR ART communication system
  • FIG. 2 is a flow diagram illustrating one embodiment of the present invention
  • FIG. 3 is a flow diagram illustrating yet another embodiment of the present invention.
  • FIG. 4 is a flow diagram illustrating yet another embodiment of the present invention.
  • FIGS. 2-4 The embodiments of the present invention are described now in reference to FIGS. 2-4, and in comparison and reference to certain aspects of the PRIOR ART system of FIG. 1.
  • an Access Terminal (AT) 100 in a dormant state, moves to a Target Subnet 104 from a Source Subnet 102 - and if AT 100 determines, that ColorCode of AT 100 already stored matches the SecondaryColorCode of Target Subnet 104, i.e., no Unicast Access Terminal Identifier (UATI) update is required in Target Subnet 104 - AT 100 may delay the UATI update in Target Subnet 104, instead of not initiating the UATI update.
  • UATI Unicast Access Terminal Identifier
  • One embodiment for AT 100 to delay UATI update may be that AT 100 may initiate a UATI update timer. An UATI update request may then be initiated by AT 100 in Target Subnet 104 if the UATI update timer expires.
  • the length of the UATI update timer may be defined in various ways, without departing the scope and spirit of the present invention.
  • the value of the UATI update timer may be defined by target subnet 104 which the AT moves in, and sent to AT 100.
  • One embodiment may define the length of the UATI update timer by a value of UATIUpdateTriggerTimer in a SectorParameters message sent by Target Subnet 104. Table 1, below, shows UATIUpdateTriggerTimer in a related part of a SectorParameters message. The UATIUpdateTriggerTimer is underlined.
  • the AN will not define a value for the UATIUpdateTriggerTimer field. However, if the SecondaryColorCodelncluded is not "0", the AN may define a value for the UATIUpdateTriggerTimer, with seconds as the unit.
  • the AN may set up the value for the UATIUpdateTriggerTimer in a SectorParameters message according to current network payload, and a default value may be 1800.
  • the value of UATIUpdateTriggerTimer may be increased accordingly as network payload increases, and vice versa.
  • the AN may also send a value of time to AT 100.
  • AT 100 may determine the length for the UATI update timer using the difference between the time received and it's current time. For example, AT 100 receives a value of time: 1 1 :05am, and the current time of AT 100 is 11 :02am, then the length of the UATI update timer is 180 seconds.
  • the UATI update timer is stopped. However, if AT 100 moves to another subnet, and if no UATI update is required based on the SecondaryColorCode of the another subnet, then the UATI update timer is reset by the value of UATIUpdateTriggerTimer in a SectorParameters message of the new access subnet, and initiated.
  • AT 100 sends a UATI update request for updating UATI to Target Subnet 104.
  • the target AN then re-assigns a UATI responsive to the UATI update request, and retrieves session information of AT 100 from Source Subnet 102.
  • the AT session information will now be stored in Target Subnet 104, and Source Subnet 102 will not keep the session information any more.
  • an AT 200 in a dormant state moves to an adjacent Target Subnet 204, and updates UATI in Target Subnet
  • AT 200 in the serving area of a Source Subnet 202, receives sector parameters sent by the Source Subnet 202 - including ColorCode with a value of 7, SecondaryColorCode with values of 8 and 9, and UATIUpdateTriggerTimer Tl .
  • AT 200 then requests a Packet Control Function (PCF) entity 206 to register for a session in Source Subnet 202, and is assigned a UATI. After successful registration, AT 200 stores the ColorCode for Source Subnet 202 with a value of 7, and transforms to a dormant packet data session state.
  • PCF Packet Control Function
  • AT 200 As AT 200 moves to Target Subnet 204 in a dormant state, it receives sector parameters sent by Target Subnet 204 - which include ColorCode with a value of 8, SecondaryColorCode with a value of 7, and UATIUpdateTriggerTimer with a value of T2.
  • AT 200 determines that ColorCode stored in AT 200 has a value that is included in SecondaryColorCode of Target Subnet 204 (i.e., 7), and the ColorCode stored does not equal ColorCode of Target Subnet 204, then AT 200 initiates a UATI update timer with length T2.
  • AT 200 stops the UATI update timer, and requests a UATI update in Target Subnet 204.
  • Target Subnet 204 then reassigns a UATI to AT 200.
  • AT 200 then re-stores the ColorCode with a value of 8, i.e. the value of ColorCode of Target Subnet 204, after a successful UATI update.
  • AT 300 in a dormant state moves across a number of adjacent subnets, and updates UATI in a target subnet.
  • AT 300 in the serving area of a Source Subnet 302, receives sector parameters sent by Source Subnet 302, including ColorCode with a value of 7, SecondaryColorCode with a value of 8, and UATIUpdateTriggerTimer Tl .
  • AT 300 requests a PCF (308) to register for a session in Source Subnet 302, and is assigned a UATI. ColorCode is 7.
  • AT 300 stores the ColorCode for Source Subnet 302 with a value of 7, and transforms to a dormant packet data session state.
  • AT 300 As AT 300 moves to a Target Subnet 1 304 in a dormant state, it receives sector parameters sent by Target Subnet 1 304, which include ColorCode with a value of 8, SecondaryColorCode with values of 7 and 9, and UATIUpdateTriggerTimer with a value of T2. AT 300 determines that ColorCode of AT 300 already stored has a value that is included in SecondaryColorCode of Target Subnet 1 304 (i.e., 7), and that Target Subnet 1 304 ColorCode is not 7. AT 300 then initiates a UATI update timer with length of T2.
  • Sector parameters sent by Target Subnet 1 304 which include ColorCode with a value of 8, SecondaryColorCode with values of 7 and 9, and UATIUpdateTriggerTimer with a value of T2.
  • AT 300 determines that ColorCode of AT 300 already stored has a value that is included in SecondaryColorCode of Target Subnet 1 304 (i.e., 7), and that Target Subnet 1 304 ColorCode is not 7. AT 300 then initiates a UATI update time
  • AT 300 moves into a Target Subnet 2 306 in a dormant state.
  • AT 300 receives sector parameters sent by Target Subnet 2 306, including ColorCode with a value of 9, SecondaryColorCode with values of 7 and 8, and UATIUpdateTriggerTimer with a value of T3.
  • AT 300 determines that ColorCode of AT 300 already stored has a value that is included in SecondaryColorCode of Target Subnet 2 306, i.e., 7, and Target Subnet 2 306 ColorCode is not 7. Then, AT 300 resets the UATI update Timer to T3 and initiates the UATI update timer.
  • AT 300 stops the UATI update timer, and requests a UATI update in Target Subnet 2 306.
  • Target Subnet 2 306 re-assigns a UATI to AT 300.
  • AT 300 then stores the ColorCode with a value of 9 after a successful UATI update.
  • FIG. 4 Another embodiment is illustrated now in relation to FIG. 4.
  • An AT 400 in a dormant state moves across to an adjacent Target Subnet 404 from a Source Subnet
  • Source Subnet 402 receives sector parameters sent by Source Subnet 402, including
  • AT 400 requests a PCF 406 to register for a session in Source Subnet 402, and is assigned a UATI.
  • the ColorCode is 7.
  • AT 400 stores the ColorCode for its source subnet with a value of 7, and transforms to a dormant packet data session state.
  • AT 400 moves across to Target Subnet 404 in a dormant state, and receives
  • Target Subnet 404 which include ColorCode with a value of 8, SecondaryColorCode with a value of 7, and UATIUpdateTriggerTimer with a value of T2.
  • AT 400 determines that ColorCode of AT 400 already stored has a value that is included in SecondaryColorCode of Target Subnet 404 (i.e., 7), and determines Target Subnet 404 ColorCode is not 7. Then, AT 400 initiates a UATI update timer with length of T2.
  • AT 400 Before the UATI update timer expires, AT 400 returns back to Source Subnet 402, and receives sector parameters sent by Source Subnet 402, including ColorCode with a value of 7, SecondaryColorCode with values of 8 and 9, and UATIUpdateTriggerTimer with a value of Tl . Since ColorCode already stored by AT 400 has the same value as the ColorCode of Source Subnet 402 just received (i.e., 7), AT 400 stops UATI update timer. However, the AT 400 will not initiate another UATI update timer.
  • the present invention thus provides signaling between ATs and Access Networks (ANs) that optimizes access performance of the ATs - particularly by reducing communication between subnets.
  • a UATI update may be triggered after an AT moves into a target subnet, from a source subnet. Forward signaling reaches an AT, access delay of the AT is reduced, and wireless communication performance is improved. This ensures that the AT receives forward signaling, shortens call set- up delay.

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

Abstract

Système de communication d'un terminal d'accès dans un réseau sans fil muni d'une pluralité de sous-réseaux. En fonction d'un mouvement du terminal d'accès dans un état dormant entre des sous-réseaux et de valeurs de code de couleur et de code de couleur secondaire de chaque sous-réseau, le système détermine si le terminal d'accès doit lancer immédiatement une requête de mise à jour d'Identifiant de terminal d'accès d'unidiffusion (UATI) ou retarder la mise à jour de l'identifiant de terminal d'accès d'unidiffusion (UATI).
PCT/CN2007/001391 2007-04-26 2007-04-26 Système et procédé pour mettre à jour l'uati d'un terminal d'accès Ceased WO2008131581A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2007800001163A CN101467399B (zh) 2007-04-26 2007-04-26 更新统一接入终端标识的方法和接入终端
PCT/CN2007/001391 WO2008131581A1 (fr) 2007-04-26 2007-04-26 Système et procédé pour mettre à jour l'uati d'un terminal d'accès

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/001391 WO2008131581A1 (fr) 2007-04-26 2007-04-26 Système et procédé pour mettre à jour l'uati d'un terminal d'accès

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WO2008131581A1 true WO2008131581A1 (fr) 2008-11-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101959173A (zh) * 2009-07-17 2011-01-26 华为技术有限公司 一种数据传输方法及通讯系统以及相关设备
US8699401B2 (en) 2009-02-13 2014-04-15 Qualcomm Incorporated High rate packet data (HRPD) idle state handout from femto access point to macro access network

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8412188B2 (en) * 2010-01-27 2013-04-02 Qualcomm Incorporated Managing session information in a wireless communications system

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KR100425078B1 (ko) * 2003-02-28 2004-03-31 에스케이 텔레콤주식회사 Ｅｖ-ｄｏ 시스템에서 컬러 코드 불일치로 인한 호 접속해제를 방지하기 위한 방법 및 시스템
CN1773950A (zh) * 2004-11-08 2006-05-17 朗迅科技公司 用于在分布式网络中激活休眠移动单元的方法和设备
WO2006110021A1 (fr) * 2005-04-15 2006-10-19 Samsung Electronics Co., Ltd. Appareil et procede permettant de declencher une renegociation de session entre un reseau d'acces et un terminal d'acces dans un systeme de transmission de donnees par paquets a grand debit

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CN1886971A (zh) * 2003-11-24 2006-12-27 高通股份有限公司 访问终端标识符管理

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KR100425078B1 (ko) * 2003-02-28 2004-03-31 에스케이 텔레콤주식회사 Ｅｖ-ｄｏ 시스템에서 컬러 코드 불일치로 인한 호 접속해제를 방지하기 위한 방법 및 시스템
CN1773950A (zh) * 2004-11-08 2006-05-17 朗迅科技公司 用于在分布式网络中激活休眠移动单元的方法和设备
WO2006110021A1 (fr) * 2005-04-15 2006-10-19 Samsung Electronics Co., Ltd. Appareil et procede permettant de declencher une renegociation de session entre un reseau d'acces et un terminal d'acces dans un systeme de transmission de donnees par paquets a grand debit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8699401B2 (en) 2009-02-13 2014-04-15 Qualcomm Incorporated High rate packet data (HRPD) idle state handout from femto access point to macro access network
US8781435B2 (en) 2009-02-13 2014-07-15 Qualcomm Incorporated High rate packet data (HRPD) idle state handout from femto access point to macro access network
US9185607B2 (en) 2009-02-13 2015-11-10 Qualcomm Incorporated High rate packet data (HRPD) idle state handout from femto access point to macro access network
CN101959173A (zh) * 2009-07-17 2011-01-26 华为技术有限公司 一种数据传输方法及通讯系统以及相关设备
CN101959173B (zh) * 2009-07-17 2013-06-05 华为技术有限公司 一种数据传输方法及通讯系统以及相关设备

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Publication number Publication date
CN101467399A (zh) 2009-06-24
CN101467399B (zh) 2011-08-24

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