TWI323585B - Radio network controller for communicating with node b and method thereof - Google Patents

Radio network controller for communicating with node b and method thereof Download PDF

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TWI323585B
TWI323585B TW093104017A TW93104017A TWI323585B TW I323585 B TWI323585 B TW I323585B TW 093104017 A TW093104017 A TW 093104017A TW 93104017 A TW93104017 A TW 93104017A TW I323585 B TWI323585 B TW I323585B
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node
network controller
clear
radio network
message
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TW093104017A
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TW200507521A (en
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E Terry Stephen
Yi Ju Chao
M Miller James
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Interdigital Tech Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0231Traffic management, e.g. flow control or congestion control based on communication conditions
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1809Selective-repeat protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854Wide area networks, e.g. public data networks
    • H04L12/2856Access arrangements, e.g. Internet access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00Arrangements for monitoring or testing data switching networks
    • H04L43/06Generation of reports
    • H04L43/065Generation of reports related to network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/30Flow control; Congestion control in combination with information about buffer occupancy at either end or at transit nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/32Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/34Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00Packet switching elements
    • H04L49/90Buffering arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0247Traffic management, e.g. flow control or congestion control based on conditions of the access network or the infrastructure network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • H04W28/12Flow control between communication endpoints using signalling between network elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/10Flow control between communication endpoints
    • H04W28/14Flow control between communication endpoints using intermediate storage
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/02Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/04Registration at HLR or HSS [Home Subscriber Server]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092Error control systems characterised by the topology of the transmission link
    • H04L2001/0097Relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/12Access point controller devices

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Selective Calling Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Description

9|身.正替換頁 九、發明說明: ---- 【發明所屬之技術領域】 / 本發明係關於無線電通訊的領域,更特定言之,本發明 係關於藉由提供伺服無線電網路控制器的允許B節點之清除 控制之系統及方法。 【先前技術】 ^ 第三代(3G)通用地面無線電存取網路(UTRAN)包括 ,夕無線電網路控制器(j^Cs),每一個無線電網路控制器 δ至或更多B節點,每一個b節點包括一或更多服務一 ϋ多、胞元的基地台,該Β節點必然與-或更多使用者設備 (UEs)通訊。 财一f fG系統’其包括頻分雙工(FDD)及時分雙工(TDD) 的i料上ΐΐ該咖以分佈(亦即,緩衝及調度)至证 ^枓傳輸。然而,對蜂窩系統的高速頻道 B卽點分佈。例如,這此古、击相、苦甘 貝計係由这
二同速頻道的其中一個為高速下行分享 (HS-DSCH)。因資料由該b節點分佈,在 前,需先緩衝在㈣節點㈣料。刀怖在傳輸至該UE 有許f在該B節點緩衝的資料不再有用的案例,日 在曰阻礙系統的有效操縱。例如,一 /、子 自一個胞元移動至另—侗案例為§可移動UE 此該UE由另一個==導致二職胞元變化(由 間切換。,,舊的資料”(亦g ^者在相同B節點的胞元 B節點内緩衝準備傳輸至該UE 前在該 其浪費緩衝資源及無線電連 及傳送此資料, 資料及停止此資料的傳輪因^法衝清除此舊 結資源。 Ρ名綾衝負/原及無線電連 1323585 替換頁 第二個案例係關於無線電連結控制器(RLC)層。該 層在伺服無線電網路控制器(SRNC)及該UE皆為對等實體, 有存在當該RLC點對點協定失效,且該rlc重新設定其本 身的機會。RLC失效的原因為因情況而異的且此種原因^在 本發明範圍内。然而,一旦該RLC重新設定其本身,則先前 在該B節點緩衝的資料不再為有用的因該虹(::重新併發及重 新開始傳輸。此已緩衝的資料僅會引起傳輸延遲及不必要的無 線電資源之使用,若被傳輸,此資料只會由該j^C對等實體 捨棄。 、 次第三個案例係關於藉由該RLC在確認應答模式(AM) =¾料之依序傳送。該AM RLC的要求為確認通訊協定資料 單位(PDUs)的依序傳送發生。該使用一種伴隨每一個 PDU的序號(SN)以確認PDUs的依序傳送至較高層。當有 $序傳送(亦即,當找不到PDU時)時,在該证的傳 送一個狀態報告PDU至其在該B節點的對等實體,要求該失 聯的PDUs之重新傳輸’ 一旦接到該狀態報告pDU,在該 的該對等實體重新傳輸該失聯的PDU之複本。 、基於許多理由,高度希望已重新傳輸的PDUs儘可能快 速到達接收側(亦即,該UE)的該RLC。首先,因依序傳送 的,求’該失聯的PDU會防止後續的PDUs向前送至較高層, 第二,該UE的緩衝尺寸需足夠大以容納重新傳輸的延遲,並 仍維持有效的資料速率,延遲愈長,該证的緩衝尺寸必須愈 大以容許該UE緩衝停滯的該pDus及持續的資料接收直到正 確的序列PDU可被向前送至較高層。該杈大的緩衝尺寸造成 UEs的增加硬體成本。此為非常不欲的。 第1圖為先前技藝系統,其包括一種RNC、一種B節點、 種UE及它們的附屬緩衝。在此先前技藝系統,具SN=3的 種PDU未被該UE成功接收。所以,在該证的該虹匸要 1323585 正替換ΐί 求在該RNC的其對等RLC層重新傳輸。同時, 的PDUs在該Β節點緩衝,且具SNs=4及5的pDUs在該证 緩衝。應注意的是雖然第1圖僅顯示被緩衝的許多pDUs,事 實上許多更多的PDUs (例如1〇0或更多)及自其他 等的PDUs可被緩衝。 如第2圖所示’具SN=3的該PDU之重新傳輸必須在該 B節點緩衝的行之末端等待,且僅在具_=6 9的pDUs被傳 輸後才被傳輸。在該UE的PDUs無法向前送至較高層直到所 有PDUs依序被接收。在此情況下’具观=3的該pDu停止 後續的PDUs向前送至較高層(亦即,SNs=4 9),假設所有 該PDys被成功傳輸。注意此實例僅反映10個pDUs,但是在 正常操作巾數百個PDUs可在重娜輸的資料PDUs之前被調 度,其更使傳輸的延遲及資料緩衝議題惡化。 上述案例儘為許多實例的少數,其中在該B節點之資料 清除會產生無線電通訊系統的更有效率操作。 、 希望具-種系統及方法,由此該j^C可控制在該B節點 緩不再ί用的資料之清除。在許多情況下,此緩衝資料的 刪除θ造成系統的更有效操作。 【發明内容】 生本^明包括一種允許控制在該Β節點緩衝的資料的 之ί'統及方法。清除指令刪除伴隨特定UE的B節點緩衝 5,於在該抓0發生的特定資料清除觸發事件,該RNC UE的所有資料’在一或許多使用者優先順序傳 在一或更多在該B節點的邏輯通道的資料,而後 -綠=°該B節點清除傳輸資料的需求,該清除指令可包
步驟以接收由賴C起始的現有(先前技藝) “貝枓了包括一種全新的步驟,其特定地要求B m 7 1 1
字表域私舰料目式敛述之 ’其中相同數 、·ί·κ/ν 第3A圖,根據本發明該RNC控制在,b θ π & 被示出。麵C等待伴隨^E:: =-==的發i’例如此觸發事件可』二 巧態報告之產生以要求;:= 重二定傳: 二本3:,楚地•任= 吐安w α除該B即點,若該B節點的清除可產 、系、先刼作的利益。因此,之後所敘述的本發明方及 μ不僅僅受限於該三個已列舉的觸發事件。 ,、、-’ UE的觸f事件而定,伴隨证的所有資料,伴隨該 伏資料流的資料或伴隨該证的一或更多邏輯通道的 舅料可被要求在該Β節點的清除。 HS 在飼服胞元變化的情況下,在該舰 CH胞兀變化後,在該來源Β節點緩衝的所有該ue資 ^不再為有用的。該臟^清除該來源B節點以釋出在伴隨該 的所有緩衝的資料使沒有任何無線電來源會在不必要的資 料傳輸上被浪費。 —在虹匚重新設定或RLC重新傳輸的情況下,該j^c可 藉由傳輸優先順序行或是交替地由伴隨該RLC實例的邏輯通 道而對特定UE選擇性地清除在該b節點緩衝的資料。在 重新傳輸的情況下,該清除功能會減少RjLC重新傳輸的延遲 且在RLC重新設定的情況下,該清除功能會避免無線電來源
S (步參3A ® ’該_蚊觸發事件是否已接收 若未接收’則該騰_步驟12並持續S 的發生。若觸發事件已被偵測, 個 '=‘i=6r息顯示該β節點應清除伴隨該二 步驟16),此可為在—或更多緩衝的 盆 節點接收該訊息後(步驟⑻ 根據本發_方法10 ’應認知在該Β節朗資料的 除了不再為有用的資料及釋出在該Β節點的資料緩衝來源 及不必要地被分配以傳輸此資料的無線電來源。 ’、 亦應由熟知本技藝者了解由步驟16所明示的清除訊息 J括任何-或更多下列替代方式。在該清除訊息的第一替g方 式中,在現有UTRAN步驟内的清除訊息在該j^c及該B節 點間發出訊息,因此該B節點被構形為由該B節點的訊息接 收起始一清除。在此替代方式中,在現有步驟中的該資料^ 為絕對的且僅僅是訊息接收’沒有任何額外發出訊號,造成二 種即使是該訊息是關於完全不同的功能的資料清除。此絕對結 合可以訊框協定資料框架發生、可在RLCPDUs攜帶、或是^ 以先前技藝訊息的信息元件或B節點應用部份(NBAP)或無 線電網路子系統應用部份(NASAP)的步驟被攜帶而發生。 在該清除訊息的第二替代方式中,該清除訊息可包括在 該RNC及該B節點間發出訊息的完全新的或唯一的 步驟,其明確地指示該B節點開始所欲緩衝的清除。此包括 一個完全屬於該清除功能的個別訊息。在此替代方式中,例 如,在訊框協定的一個新的控制訊框係專屬於該清除功能或是 新的NBAP步驟或是新的RNSAP步驟係專屬於該清除功能。 該清除訊息的第三替代方式中,該清除訊息可包括一 部 9 [S3 步驟。在此具體實_巾,於在該腿^及該 2點3出訊息的現有聰Μ步驟的_部份訊息之位元或 1; 屬於該清除功能。該Β節點經由現有步驟接收 此訊息及魏触元或信息元似紗极是否應發生。 错該清除訊息的第四替代方式中’該β節點被預先 „自該RNC接收訊息(其可為先前技藝訊息或新的訊 i 資料。在此替代方式中,例如,該Β節點被預先
接收顯示HS_DSCH通道的釋出(亦即’無線電連結 ^釋出)线息時可清除資料。該清除魏為有糾,因伴隨 =HS-DSCH通道及在該B節點緩衝的資料於該HS DSCH通 道的釋出後不再為有用的。 / f應由熟知本技藝者了解,依據特定案例而定,因適當 系統f作的原因,其他功能可能依循在該B節點的清除功能 之性能。對不同案例,本發明不防止由在該B節點的經狀〇 控制的清除功能與其他功能之統合。
年月日修正替換頁I 如第3B圖所示,該b節點可額外確認清除功能。步驟 112_120與參考第3A圖方法1〇所示及所敘述的步驟i2_2〇相 同。因此,這些步驟不再進一步敘述。然而,根據本發明方法 1〇〇的此替代方法,在該B節點清除所欲緩衝後(步驟12〇), φ 其送出一資料已被清除之確認至該RNC(步驟122),該RNC 接著接收及處理此嫁認(步驟124)。 確認的形式及該RNC回應此確保所採取的動作基於合適 不同案例的不同系統結構而不同。做為實例,在HSDPA當清 除功能被設計甩於RLCPDU重新傳輸時,在完成清除功能後 由該B節點至該RNC的確認可被進行以使該RNC重新開始 PDU傳輸。在此情況下,該確認可以如先前所提及的類似方 法進行。
在該確認訊息的第一替代方式中,該確認訊息在由該B 10 1323585 正替換頁 節點至該rnc的現有訊息内如訊框協定資料框 歷或腿AP的先前技藝訊息的一或許多=;息;-件0 在該確認訊息的第二替代方式中,該確認訊息可包括完 全新的或唯一的訊息。此包括一個完全屬於該清除二能的確ς 之個別訊息,例如,在專屬於該清除確認功能的該訊框協定^ 一個新的控制訊框或是專屬於該清除確認功能的仰八^ RNSAP的新訊息。 一 隶後,該破認訊息的第三替代方式中,由該B節點至該 RNC的現有訊息被預先構形為顯示該清除功能的確認‘即= 在訊息中沒有任何明確保留用於確認的場。應由熟知本技蓺者 了解,依據特定案例而定,其他可達到適當系統操作 & 被使用以確認該清除功能。 幻万凌了 無論確認形式為何,應注意該確認可包括許多功能首 $其包括元成該清除功能之該Β節點的確認。或者,其可 提供t該Β節點的PDU傳輸之狀態以輔助該rnc操作:因 =節點不知道該PDU的SN,故該B節點無法直接傳送經 ,輸的PDUs的SN回到該RNC,該B節點會以如辨識在該b =的PDUs狀態之點陣圖來通知該關於該pDU的傳輸 匕、,該狀態可顯示已被清除及正等待傳輸的pDUs或pDUs 之數目。 參考第4圖’本發明方法5㈣一個實例被示出,在此案 UE傳輸-狀態PDU’其顯示一或更多pDUs為失聯的。
Pirn驟&,該证傳輸一虹。狀態報告至該抓。,其顯示該 ^ ί狀態。在此實例中’假設該狀態報告顯示一或更多 s ^失聯的’在進行該狀態報告後,該送出一訊息 ^節點以自緩衝清除已緩衝的pDUs,緩衝係伴隨著要被 重新傳輪的該PDUs(步驟54)。 11 [S] 該清除訊息可經由訊框協定以具已重新傳輸的PDU的資 料框架或是以在較已重新傳輸的PDU為高的優先順序傳送的 控制訊框。或者,在該NBAP或該RNSAP的訊息亦可被用來 通知該B節點,該B節點自所欲緩衝清除該PDUs(步驟56) 及確認該清除與該PDU狀態至該RNC(步驟58),接著該r^c 重新傳輸該失聯的及後續的PDUs(步驟60)。該b節點將這 些PDUs向前送至該ue(步驟62)。或者,該清除訊息可隨在 訊框協定的失聯的PDUs而被包括或是可在該或該 RNSAP被傳輸’或做為其上的個別訊息。 μ
、在RLC重新傳輸的情況下進行該β節點的清除功能的益 處為傳輸延遲的減少,其說明於下列實例。參考第5圖,使^ 根據本發明的清除功能,該Β節點清除緩衝,故具SNs=6_9 的PDUs被刪除’清除功能完成之後,該b節點確認清除功能 至該RNC且之後該RNC自SN=3(亦即在該UE失聯的該pdu) 重,開始RLC傳輸,之後該β節點接收具SN=3的該pDU, ^ =有其他PDUs在其前面,具SN=3的該經重新傳輸pDU ,第2圖所示案例更為快速地被傳輸。在此實例中,於該B
節點已被清除後具SNs=6-9的該PDUs由傳輸側的該rlC再 次被重新傳輸。 在傳送該失聯的PDU後,該RNC立即以其最佳能力開 始,新開始正常的PDU順序’或者其可等待直到該pDU清除 狀態自該B節點送出,確認清除及給予信息於該已清除的 PDUs ° 在第一替代方式中,該清除功能之確認未被執行,或是 =吏該確認功能被執行,該RNC未等待接收該B節點清除功 月匕之j認後即開始重新傳輸失聯的PDUS。該B節點不僅在接 =該清除功能前清除已缓衝的PDUs且在接收來自該RNC的 》月除指令後會將最近接收的PDUs傳送至該ue。 12 (S) ,在第二替代方式中,該RNC等待直到清除確認自該b節 點送出。若該確認亦含在該B節點資料區塊傳輸的狀態,則 該RNC可使用該信息以決定於何處重新開始該pDU傳輪。 參考第6圖’根據本發明替代方法7〇被示出。此方法7〇 ,似於第4圖所示的方法50,除了無清除信息確認及無該B 節點送至該RNC的PDU狀態。 僅管本發明已以較佳具體實施例敘述,在於下文申請專 利範圍列出的在本發明範圍内的其他變化為熟知本技藝者明 顯易見的。 【圖式簡單說明】 第1圖為該RNC的先前技藝重新傳輸。 第2圖為無清除的先前技藝RLC重新傳輸。 第3A圖為根據本發明產生清除訊息的方法。 第3B圖為根據本發明包括確認應答的產生清除訊息的替代 方法。 第4圖為根據本發明方法的該b節點的清除之實例’且該 RNC等待直到該pdu清除狀態已接收才重新傳輸。 第5圖為根據本發明方法具清除的RLC重新傳輸。 第6圖為根據本發明方法的該b節點的清除之實例,且該 RNC不等待直到該PDU清除狀態已接收即重新傳輸。 【主要元件符號說明】 10、50、70、100 方法 12-20、52-62、112-120、122、124 步雜

Claims (1)

  1. 十、申請專利範園·· ^15^! L 一種於一無線電網路控制器_C)中使用的方法,該方法包 括. 在該無線電網路控制器偵測關於與一使用者設備的一高 連下行分享财(hs_dsch)圓的封包資料單元的一清除 觸發事件;以及 $ 從該無線電網路控制器傳送一清除訊息至一B節點,以 π求攸該B節點的緩衝中清除與該使用者設備的該高速下行 刀旱頻道(HS-DSCH)關聯的所有封包資料單元。 馨 .如申明專利範圍第1項所述的方法,其中該清除觸發事件是 該使用者設備的一高速下行分享頻道(HS_DSCH )胞元改變。 3. 如申印專利範圍第〗項所述的方法,其中該清除觸發事件是. 一無線電連結控制重置。 4. 如申請專利範圍第}項所述的方法,其中該使用者設備以及 該B節點是以一確認模式(AM)進行通訊,以及該清除觸發事拳 件是從該使用者設備發送到該B節點的一無線電連結控制器 狀態報告訊息。 5. 如申請專利範圍第1項所述的方法,其中該清除訊息是包括 在從該無線電網路控制器傳送到該B節點的一資料訊框中。 6·如申請專利範圍第1項所述的方法,其中該清除訊息是包括 在從該無線電網路控制器傳送到該B節點的一資料訊框中的 一信息元件。 7. 4一2 i 羊月i修正替換I 如申請專利細第〗項所述的, I- ^ 一中該清除訊息是包括 在從該無線電網路控制器傳送到該崎點的一 —位元 資料訊框中的 8. 3請專利卿丨侧恤,㈣麵訊息指出— 问逮下行分享頻道承載的釋出。 電網路控制器(RNC),該無
    9.-種用於與-Β節點通訊的—無線 線電網路控制器包括: -處’被配置用於_關於與_使用者設備的一高 分钱道(HS_DSCH)關聯的封包資料單元的一清除 觸發事件;以及 收發⑽被配置用於傳送一清除訊息至該B節點,以 請雜該B節點的緩射清除與該義者設備賴高速下行 分旱頻道關聯的所有封包資料單元。 如申"月專利範圍第9項所述的無線電網路控制器_^,i中 該清除觸神件是該❹者設備的—高速下行分㈣道 (HS-DSCH)胞元改變。 1L如申請專利範圍第9項所述的無線電網路控制器(RNC),其中 該清除觸發事件是一無線電連結控制重置。 12.如申S月專利|巳圍第9項所述的無線電網路控制器师c),其中 該使用者設備以及該Β節點是以一確認模式(AM)進行通 訊’以及該清除觸發事件是從該使用者設備發送到該B節點 15 (S3 1323585
    的一無線電連結控制器狀態報告訊息。 13.如申請專利翻_所述的無線電轉控制器师〇,其中 該清除訊息是包括在從該無線電網路控制器傳送到該B節點 的一資料訊框中。 14·如申請專利範圍第9項所述的無線電網路控制器卿),其令 該清除訊息是包括在從該無線電網路控制器傳送到該B節點 的一資料訊框中的一信息元件。 15. 如申請專利範圍第9項所述的無線電網路控制器_C),其中 該清除訊息是包括在從該無線電網路控制器傳送到該B節點 的一資料訊框中的一位元。 16. 如申叫專利範圍第9項所述的無線電網路控制器卿C),其中 該清除訊息指出一高速下行分享頻道承载的釋出。
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