TWI432050B - 用以控制無線使用者之無線網路控制器 - Google Patents

用以控制無線使用者之無線網路控制器 Download PDF

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TWI432050B
TWI432050B TW098138173A TW98138173A TWI432050B TW I432050 B TWI432050 B TW I432050B TW 098138173 A TW098138173 A TW 098138173A TW 98138173 A TW98138173 A TW 98138173A TW I432050 B TWI432050 B TW I432050B
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rnc
wtru
measurement
offset
network controller
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TW201038096A (en
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Marian Rudolf
Shamim Akbar Rahman
James M Miller
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Interdigital Tech Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12—Access point controller devices
    • 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
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Description

用以控制無線使用者之無線網路控制器
本發明是有關無線通訊系統。特別是，本發明是有關此類系統中無線網路控制器間之資訊傳送。
第一圖顯示一無線通訊系統，此系統中所有的使用者皆藉由一無線網路控制器(RNC)20來管理。每個使用者，即無線傳送/接收單元(WTRU)24，與節點-B221 (Node-B 221 )進行無線通訊。節點-Bs 221 -222 群組係由無線網路控制器(RNC) 20所控制。
當WTRU 24移動時，WTRU 241 、242 在基地台與節點-Bs 32、34之間進行交接機制。第二圖係顯示一WTRU 241 、242 從第一RNC 28管理的區域移動到第二RNC 26所管理的區域。WTRU 242 被認定已經"偏移(drift)"至新的RNC區域，該RNC(第二個RNC)就被視為是偏移RNC(D-RNC) 26。D-RNC 26具有並控制一節點-Bs 32，第一RNC則被視為服務無線網路控制器(S-RNC) 28。傳統的RNCs(S-RNC 28和D-RNC 26)可透過RNC介面(Iur)互相進行一些資訊的通訊，在WTRU 242 "偏移"至D-RNC 26後，D-RNC 26會替"正在偏移"的WTRU 242 執行一些功能，例如動態通道分配(DCA)、進入許可控制、排程以及RRM功能，S-RNC 28仍然會為"正在偏移"的WTRU 242 執行其他功能，例如換手機制的判斷以及WTRU下行通路量測資訊的收集。當WTRU 24不偏移時，例如第一圖所示，RNC 20管理WTRU 24執行S-RNC 28和D-RNC 26的功能。
在第三代無線技術統合計劃(3GPP)的R99、R4及R5的規格下，當WTRU241 、242 從S-RNC 28交遞至D-RNC 26時，胞元開始裝載且許多節點-B量測資訊會從S-RNC 28發送至D-RNC 26。然而，並沒有一個機制能從S-RNC 28傳送可信的資訊至D-RNC 26，例如WTRU量測資訊。
因此，在RNC之間能有更佳的點對點通訊是一件令人渴望的事。
一種偏移無線傳送/接收單元(WTRU)具有一相連的偏移無線網路控制器(D-RNC)與一相連的服務無線網路控制器(S-RNC)。偏移無線網路控制器(D-RNC)發送一要求信息至服務無線網路控制器(S-RNC)要求偏移WTRU的量測資訊，S-RNC接收此要求信息並發送一被要求的量測資訊信息至D-RNC，此D-RNC接收此資訊信息。
雖然較佳實施例是以第三代無線技術統合計劃(3GPP)之寬頻分碼多重存取(W-CDMA)規格來描述，但實施例亦應用在其他無線通訊系統。
未來，一種無線傳送/接收單元(WTRU)包含但不限制在使用者裝置、行動基地台、固接或移動用戶單位、呼叫器、或能於無線環境下操作的任何其他形式裝置。
第三圖是一"正在偏移"的WTRU 242 在使用點對點資訊交換時，一S-RNC 40、一D-RNC 38及一IUR 36的簡易方塊流程圖。第四圖是點對點資訊交換的流程圖。S-RNC 40為"正在偏移"的WTRU 242 執行例如交遞判斷和收集WTRU下行通路量測資訊的功能，D-RNC 38則為"正在偏移"的WTRU 242 執行功能，例如動態通道分配(DCA)、進入許可控制、排程以及RRM等功能。
D-RNC 38具有一RRM 42，RRM 42為與D-RNC 38相連之胞元之WTRUs管理資源，D-RNC 38替"正在偏移"的WTRU242 之胞元以及其他利用上行量測收集裝置44的胞元收集上行通路量測資訊，這些量測資訊在RRM 42可用來作為資源配置和管理之用途，RRM 42也具有可讓WTRUs執行S-RNC功能的資訊。
D-RNC 38已與RRM 42邏輯連結，當RRM 42要求"正在偏移"的WTRU242 或一個群組或WTRUs之下行量測資訊，邏輯46啟動一WTRU量測需求裝置48透過Iur36發送一訊息，即步驟60。
D-RNC 38可能會要求該資訊的樣本，包括下行通路公共控制物理信道(CCPCH)接收信號編碼功率(RSCP)、干擾信號編碼功率(ISCP)量測及/或流量量測。較佳地，D-RNC資訊要求信息不能要求WTRU242 執行或送出量測，但D-RNC 38要求此類的量測資訊可即時被S-RNC 40所利用。
在Iru 36上的信號訊息(signaling message)允許任一D-RNC 88啟動與位在個別WTRU上、位在WTRU群組上或是在出現於一個或更多胞元中的WTRU上的S-RNCs之資訊交換，因此其並不假設其在一S-RNC中的角色。此過程較佳地並不是一個簡單的WTRU特有資訊之"轉遞(forwarding)"，例如WTRU量測。較佳地，該邏輯46通常對於所需的資訊型態做決定，縱使邏輯46可能藉控制RNC(C-RNC)來表現。一位於D-RNC 38中的邏輯46係決定是否以及何時其將需要量測以便自該S-RNC 40而被發送。例如，假使D-RNC 38偵測到超過一個門檻數或是百分比，例如10%，的WTRU是處於"偏移"模式，其典型地將會開始要求量測以便被發送。在一較佳實施中，由節點B介面(Iub/Iur)之第三代無線技術統合計劃(3GPP)標準所定義而存在的資訊元件以及標準化的WTRU量測/紀錄機制係被利用。
一較佳信息允許D-RNC 38在一特定時間間隔中對一特定"偏移"WTRU 242 ，或是對位在一特定胞元中的所有"偏移"WTRU，亦或是在特定時間間隔內對與S-RNC 40有關的胞元群組來請求量測。當擁有一特定S-RNC的許多WTRU處於"偏移"模式時，一種請求WTRU群組資訊的通信定義表是被渴望的。例如，一第一列車站(train station)係藉一第一RNC所支撐而一第二列車站則是藉一第二RNC所支撐。搭上開始於該第一列車站而正離開該第二列車站之列車的所有WTRU可能具有該第一RNC，例如S-RNC 40，以及該第二RNC，例如D-RNC 38。在此通信定義表中，要求"偏移"WTRU群組中的WTRU資訊將減少了信息過量。然而，一具有被增大之信息過量(messaging overhead)的通信定義表，此過程在該處將僅允許每個WTRU之一單獨WTRU能被使用。
此訊息係被正在偏移的WTRU S-RNC 40所接收，步驟62。該S-RNC 40具有一WTRU量測收集裝置52。此WTRU量測收集裝置53儲存特定WTRU的下行通路量測。一WTRU量測回應裝置50透過Iur36發送一量測/資訊訊息至D-RNC38，步驟64。D-RNC RRM 42使用這些量測在它的資源分配與管理中，步驟66。透過Iur 36來轉換這些資料的一個好處是這些資料轉換將典型地非常快。
用以請求並轉換這些WTRU量測的一個較佳方式使用了無線網路子層應用部分(radio network sublayer application part，RNSAP)程序。無線網路子層應用部分(RNSAP)有四個基本程式單元。這些程式單元之一為"整體程序(Global Procedure)"程式單元。此程式單元包含在RNC間執行胞元階資訊交換訊息之發送的程序。例如，接收到的總寬頻功率，載入與全球定位系統(GPS)時序資訊係藉使用一共用量測訊息而被交換。
使用無線網路子層應用部分(RNSAP)整體程序而交換的資訊表單係被擴至允許較佳的RRM。特別地，此資訊有助於最初之訊號換手決定。例如，與換手至周圍RNC的偏差胞元有關的資訊將助於此種決定。在此被提及的第三代無線技術統合計劃(3GPP)系統中，使用整體程序程式單元而交換的資訊與一特定WTRU或是WTRU群組並無關連。因此，其並不支持透過Iur 36來傳送WTRU資料的傳輸。較佳地，資訊應透過使用無線網路子層應用部分(RNSAP)程序之Iur 36而傳送，假使此種類比胞元資訊可獲自於S-RNC 40之中或是與D-RNC 38有關的RRM決定之中。
此種透過Iur 36之資訊交換係使得一D-RNC 38可自該S-RNC 40中請求WTRU量測資訊，並使得更多胞元資訊能在使用無線網路子層應用部分(RNSAP)整體程序組件單元的點RNC之間被交換。典型地，這些資訊的交換增大了在D-RNC 38中的RRM演算法(動態通道分配(DCA)，容許控制(Admission Control)，服務排程以及其他)之表現，其係由於WTRU量測的可利用性。增大的RRM，特別是動態通道分配(DCA)，促進了在無線系統，例如第三代無線技術統合計劃(3GPP)之分時雙重劃分(time division duplex，TDD)模式，中之表現、效率以及堅實(robustness)。
9、19．．．蜂巢系統
10．．．行動台
221 ，22N ，32，34．．．B節點
42．．．無線資源管理
44．．．上行通路量測收集裝置
46．．．邏輯
48．．．量測要求裝置
50．．．WTRU量測回應裝置
52．．．WTRU通路量測收集裝置
第一圖：顯示一無線網路控制器(RNC)操作一無線傳送/接收單元(WTRU)。
第二圖：顯示在無線網路控制器(RNCs)之間的一無線傳送/接收單元(WTRU)偏移。
第三圖：顯示在一較佳實施例中，點對點的資訊交換之方塊圖。
第四圖：顯示在一較佳實施例中，點對點的資訊交換之流程圖。
42．．．無線資源管理
44．．．上行通路量測收集裝置
46．．．邏輯
48．．．量測要求裝置
50．．．WTRU量測回應裝置
52．．．WTRU通路量測收集裝置

Claims (1)

  1. 一種用以控制無線使用者的無線網路控制器(RNC)，該RNC能操作為一偏移無線網路控制器(D-RNC)及一服務無線網路控制器(S-RNC)，該RNC包含：一共用量測收集裝置，用以收集相關於該RNC的胞元的共用量測，該共用量測包括接收到的總寬頻功率、載入以及全球定位系統(GPS)時序資訊；一邏輯裝置，用以決定何時要求偏移無線傳送/接收單元(WTRU)量測，該WTRU量測包括一共用控制實體頻道(CCPCH)的接收到的信號編碼功率(RSCP)以及干擾信號編碼功率(ISCP)；一WTRU量測要求裝置，耦接於該邏輯裝置，該WTRU量測要求裝置用以傳送一偏移WTRU的要求量測的一訊息；一無線資源管理裝置，耦接於該共同量測收集裝置及該邏輯裝置，該無線資源管理裝置用以管理該RNC的無線資源、接收該收集到的共用量測及該偏移WTRU量測；一WTRU量測收集裝置，用以收集該WTRU的量測；及一WTRU量測回應裝置，耦接於該WTRU量測收集裝置，該WTRU測量回應裝置用以傳送收集到的該WTRU的量測至另一RNC，以響應接收一WTRU量測要求訊息；以及其中該邏輯裝置更配置以使用該CCPCH的RSCP與ISCP測量來建立無線電資源以用於一特定的使用者。
TW098138173A 2002-06-27 2003-06-26 用以控制無線使用者之無線網路控制器 TWI432050B (zh)

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TW092211707U TW579163U (en) 2002-06-27 2003-06-26 Radio network controller peer-to peer exchange of user equipment measurement information
TW093105613A TWI333340B (en) 2002-06-27 2003-06-26 Radio network controller peer-to peer exchange of user equipment measurement information
TW092117499A TWI239783B (en) 2002-06-27 2003-06-26 Radio network controller peer-to peer exchange of user equipment measurement information
TW095123036A TWI334704B (en) 2002-06-27 2003-06-26 Radio network controller peer-to peer exchange of user equipment measurement information
TW098138173A TWI432050B (zh) 2002-06-27 2003-06-26 用以控制無線使用者之無線網路控制器
TW104116571A TW201608912A (zh) 2002-06-27 2003-06-26 使佣者設備量測資訊之無線網路控制器點對點之交換
TW102115549A TWI507058B (zh) 2002-06-27 2003-06-26 使用者設備量測資訊之無線網路控制器點對點之交換

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TW092117499A TWI239783B (en) 2002-06-27 2003-06-26 Radio network controller peer-to peer exchange of user equipment measurement information
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