TWI271964B - System and method for tight inter-working between wireless local area network (WLAN) and universal mobile telecommunication systems (UMTS) - Google Patents

System and method for tight inter-working between wireless local area network (WLAN) and universal mobile telecommunication systems (UMTS) Download PDF

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TWI271964B
TWI271964B TW093105232A TW93105232A TWI271964B TW I271964 B TWI271964 B TW I271964B TW 093105232 A TW093105232 A TW 093105232A TW 93105232 A TW93105232 A TW 93105232A TW I271964 B TWI271964 B TW I271964B
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umts
wlan
plmn
communication
local area
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TW200501665A (en
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Narayan Parappil Menon
Prabhakar R Chitrapu
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Interdigital Tech Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
    • H04L63/0227—Filtering policies
    • H04L63/0245—Filtering by information in the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892—Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/41—Billing record details, i.e. parameters, identifiers, structure of call data record [CDR]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/80—Rating or billing plans; Tariff determination aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H04W12/062—Pre-authentication
    • 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
    • H04W36/0019—Control or signalling for completing the hand-off for data sessions of end-to-end connection adapted for mobile IP [MIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1446—Reselecting a network or an air interface over a different radio air interface technology wherein at least one of the networks is unlicensed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/24—Accounting or billing
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0152—General billing plans, rate plans, e.g. charge rates, numbering plans, rate centers, customer accounts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/01—Details of billing arrangements
    • H04M2215/0164—Billing record, e.g. Call Data Record [CDR], Toll Ticket[TT], Automatic Message Accounting [AMA], Call Line Identifier [CLI], details, i.e. parameters, identifiers, structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/2026—Wireless network, e.g. GSM, PCS, TACS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/2033—WLAN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/20—Technology dependant metering
    • H04M2215/204—UMTS; GPRS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/22—Bandwidth or usage-sensitve billing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2215/00—Metering arrangements; Time controlling arrangements; Time indicating arrangements
    • H04M2215/32—Involving wireless systems
    • 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
    • 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
    • H04W92/02—Inter-networking arrangements

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Small-Scale Networks (AREA)

Description

1271964 九、發明說明： 【發明所屬之技術領域】 本叙明係與通用行動電信系統（UMTS)有關，更特別 地是，本案係為與無線區域網路（WLAN)及通用行動電信 系統（UMTS)間之緊密互作系統有關的發明。 【先前技術】 存在著一個需求，即能提供無線區域網路（WLAN)及 通用行動電信系統（UMTS)間緊密互作之系統架構，其並 具有能支援下述之架構： 於兩系統間之交接； 當終端在兩系統間交接時，通話管理及連接；以及 在兩系統間鬆散互相作用國際漫遊通信定義表。 【發明内容】 WLAN及UMTS技術係有效地相結合，以相互作用及支 持一緊始、互作通信定義表。UMTS之Iur介面係被用於無損失 的交接，行動網際協定（IP)則被利用於通話管理及連接， 而DIAMETER通訊協定訊號則被用於認證及會計。 【實施方式】 第1圖顯示一系統架構1〇，其包括一公共區域行動網路 (PLMN) 12，而該公共區域行動網路12係包含一本籍位置登 記7本籍用户伺服器(HLR/HSS) 14、一認證授權及會計用戶設 備(AAAH) 16、一計費通訊閘功能(CGF) 18、一用戶客服20， 以及一整合封包式無線服務支援節點(GGSN) 22。 一無線區域網路網際協定通訊閘(WLANIPGw)，也就 是yiP-GW30，在結合防火牆後，可利用兩個Ap建立起信號 及貧料之界面；例如AP 32和34。使用者設備(UE) 36以雙模態 1271964 WLAN/UMTS UE較好。 系統中之資料處理程序如下·· 在PLMN 12之WIP-GW30及用戶客服20之間具有一行 動網際協定(MIP)界面。WIP-GW 30係結合行動網際協定外部 客服之功能與數種無線網路控制(RNC)之功能，wip_GW3L 對於PLMN 12來說像是一外部客服、但對於Ap來說則像是一 無線區域網路控制器(RNC)，輸入的資料係傳送於pLMN (用 戶客服）和WLAN (WIP-GW) 30間之通道，正如輸入資料 線38所表示，輸出的資料則直接&WIp_GW3〇流向網際網路 40，如輸出網際協定資料線42所表示。 … PLMN 12藉由使用其HSS/HLR 14以提供認證與訂購管 理的服務。DIAMETER是一種網際協定網路中處理授權、認 證及會計功能的網際主協定（IPdomainprotocol)，在本 構中DIAMETER的使用使得以網際協定正為基礎的認證、授 權及會計(AAA)程序能夠在WIP-G W和PLMN之間正常運 作。由於PLMN原本即為一種UMTS網路，所以在PLMN提供 認證與授權程序的節點是HSS/HLR，而提供會計功能的八 孔臟節點是計費通訊閘功能(CGF)。HSS/HLR和CGF提供 UMTS程序及信號發送以幫助這些功能運作。AAAH^供/以 網際協定為基礎的AAA程序和與其相對應的UMTS程序間之 信號發送互作，使得輸入或輸出於HSS/HLR和CGF的AAA功 能也能在無線區域網路系統中運作，同樣地，MIp提供網際 協定網路中的行動管理程序。在一個UMTS網路中，封包轉 換資料服務的行動管理程序係由GGSN所處理。本結構中的 用戶客服針對GGSN提供介於MIP程序(於WIP-GW和用戶客 服間運作)以及UMTS行動應用部份(MAP)介面之間的互作， MIP/DIAMETER信號係自WIP-GW30輸出後，途經AAA外部 (AAAF)功能44以及AAA用戶(AAAH)功能16，最後輸入用戶 客服20。而MIP登錄信息則是透過無線連結48而被納入 1271964 DIAMETER信號發送中。 AAAH 16針對HLR/HSS 14而藉由行動應用部份 (MAP)(鍺介面）而與DIAMETEr互作，使得HSS/HLR用於認 證之運作正常。 、AAAH 16係使用GPRS穿隧協定(GTP)(藉由鎵介面)而作 為PLMN計費通訊閘功能(cgf)18之介面，以使得plmn收費 伺服器之運作正常。 無線區域網路和UMTS PLMN 12之間的通話連續性可 藉由使用MIP (於WIP-GW30和用戶客服20之間）和GTP (於 用戶各服20和GGSN22之間）而獲得，而用戶客服2〇提供兩 種介面間之互作，通話連續性可確保使用者在存取點(Access Point，例如32及34)間和UMTS及WLAN網路間移動時，其通 話及網際協定位址皆能保持不變。而更為進步的是，當使用 者在各網路間移動時，GGSN22之運作正如同通話資料的錨 點(Anchor Point)。舉例來說，在結構1〇中，如果使用者如第2 圖所示地，自無線區域網路移動到UMTS網路(UMTSAccess NW)50時，使用者的通話位置在(3(38]^22中仍然是固定的， 且因此在移動當中亦能夠保持。當位於UMTSAccessNW50 時，使用者設備36係藉由PLMN中的UMTS無線存取網路 (RAN)和伺服GPRS支援節點(SGSN)元件52而能與錨點的 GGSN22通信。無線區域網路和UMTS plmN之間的交接係 藉由Iur介面(以46表示)所完成，而WIP-GW則支援自UMTS Iur界面46至UMTS RAN内之無線網路控制器(rnc)的運作。 【圖式簡單說明】 第1圖及第2圖係分別為將本發明之原則具體化的wlAN及 UMTS網路系統架構圖。 1271964 【主要元件符號說明】 10系統架構 12公共區域行動網路 14本籍位置登記/本籍用戶伺服器 16認證授權及會計用戶設備 18計費通訊閘功能 20用戶客服 22整合封包式無線服務支援節點
30 WIP-GW 32、34 AP 36使用者設備 40網際網路 44 AAA外部功能 48無線連結 52節點元件
38輸入資料線 42輸出網際協定資料線 46UMTSIur 界面 50 UMTS網路
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Claims (1)

1271964 十、申請專利範圍： 1 · 一種被一撕線區域網路(wireless l〇cal area network，WLAN) 用來與一通用行動電信系統（universal mobile telecommunications system，UMTS)緊密互作之方法，該方法 包括，該WLAN : 直接與使用行動網際通訊協定(mobile internet protocol， MIP)的該UMTS通信資料；以及 藉由透過使用網際通訊協定(internet pr〇t〇C(^，IP)的網際網 路來發送資料而與該UMTS通信資料。 2· —種藉一無線區域網路（WLAN)而將一使用者設備（ user equipment，UE )的通信遞交至一通用行動通信系統（觀巧） 的方法，該方法包括，該WLAN : 透過一 Iur介面與該UMTS通信以支援該UE至該WLAN 與該UMTS之其一的遞交而與該UMTS通信。 3. —種由一通用行動系統（UMTS)用來在該umts與一無 線區域網路（WLAN)之間遞交一使用者設備（ug)的方法， 該方法包含，該UMTS : 應用一 Iur介面以支援在該UMTS與該WLAN之間的遞 交。 4·如申請專利範圍第3項所述之方法，更包含，該UMTS : 在該UE在該WLAN與該UMTS之間移動時，係利用MIP 以越過DIAMETER發送信號以備維持與該UMTS的通話。 5·如申請專利範圍第3項所述之方法，更包含，該umts : 係透過DIAMETER-UMTS互作而使用公共區域行動網路 (public land mobile network，PLMN )計費平台。 6·如申請專利範圍第3項所述之方法，更包含，該umts : 係使用一 PLMN 本籍位置登記(home location register，HLR)/ 本籍用戶伺服器(home subscriber serve，HSS)以進行認證。 7· —種無線區域網路（，1^八]^)，其係具有提供與一通用行 1271964 動通信系統（UMTS)緊密互作的裝置，該WLAN包含： 一通信裝置，係用以直接與使用行動網際通訊協定(MI 的該UMTS通信資料；以及 一轉移裝置，係用以將外出資料轉移至使用網際通訊協定 (IP)的網際網路。 8·如申請專利範圍第7項所述之WLAN，更包含： 用以從一行動網路接收輸入資料之裝置。 9·如申請專利範圍第8項所述iWLAN，其中該行動網路係 為一公共區域行動網路（PLMN)。 10·如申請專利範圍第9項所述之WLAN，其中該plmn更 包括： 一本籍客服（home agent，HA)，用以使資料建立通道至 設於該WLAN中的一網際協定通訊閘（intemet pr〇t〇C()1 gateway，IPGW) 〇 11_如申請專利範圍第l〇項所述之WLAN，其中該HA更包 含： 用以與使用網際網路通訊協定（IP)的網際網路進行通信 的裝置。 12·如申請專利範圍第η項所述之WLAN，其中該PLMN 更包含： 包括認證、授權會計本籍（authentication，authorization accounting home，AAAH)裝置，係以與設置於該WLAN中 的一 AAA外部（AAAF)裝置進行認證通信。 13.如申請專利範圍第12項所述之WLAN，其中該AAAF 裝置包含： 提供與該無線區域網路網際通訊協定閘（wireless local area network internet protocol gateway，WLAN IP GW)的該 AAAH 裝置通信的裝置。 14·如申請專利範圍第9項所述之WLAN，其中該AAAH裝 1271964 置包含： 係與該HA及一本籍位置登記/本籍用戶伺服器 (HLR/HSS)合作以提供AAAH服務的裝置。 15· —種與一通用行動通信系統（UMTS)通信的無線區域網 路（WLAN)，該WLAN包含： 一通信裝置，係用以與利用一 Iur介面之該UMTS通信以 支援在該WLAN與該UMTS之間的遞交。 16·如申請專利範圍第15項所述之WLAN，更包含·· 一裝置，其係在該UE在該WLAN與該UMTS之間移動 時，利用MIP以越過DIAMETER發送信號以備維持與該 UMTS的通話。 17· —種通用行動通信系統（UMTS)，係具有用以將一使用 者設備（UE)遞交至一無線區域網路（WLAN)的裝置或是 自一無線區域網路接收一使用者設備的裝置，該UMTS包含: 一通信裝置，係用以與利用一 lur介面與該WLAN通信以 支援在該WLAN與該UMTS之間的遞交。 口 18. 如申請專利範圍第π項所述之UMTS，更包含： 一裝置，係用以利用具有一公共區域行動網路（PLMN)的 DIAMETER-UMTS互作而使用該plmn的計費平台。 19. 如申請專利範圍第18項所述之UMTS，更包含： -認證裝置，係使用-具有—本籍用戶伺服⑻本籍位置登 記(HSS/HLR)而進行認證。 20· -種無線區域網路（WLAN)，係具有提供與一通用 通信系統（UMTS)緊密互作的裝置，該wlan包含： 一通k裝置，係用以直接與使用行動網際通訊 的該UMTS通信資料；以及 1 } -裝置，係用透過-iur與該UMTSit# UMTS的-麵者設備的—遞交提供至該现频 自於该WLAN的-使用者設備的—遞交提供至該職s。末 1271964 21· —種提供與一無線區域網路（WLAN)緊密互作的公共 區域行動網路（PLMN)，該PLMN包括： ’、 一開通裝置，係用以開通通道以將輸入資料送至兮 WLAN ； ' ^ 一第一裝置，係用以利用一 IP定義域協定以提供認證與用 戶管理；以及 一第二裝置，係用以利用行動網際協定（MIP)以提供在該 ’ WLAN與該PLMN之間的通話連續性。 22.如申請專利範圍第21項所述之PLMN包含： 一計費通訊閘功能(CGF)，以及 一AAAH裝置，其係與該CGF接合且利用整合封包無線系 ⑩ 統牙遂協定（GTP)而將PLMN計費服務供至該WLAN。
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CN1666548A (zh) 2005-09-07

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