TWI287934B - Wireless communication method and apparatus for transferring buffered enhanced uplink data from a mobile station to a node-B - Google Patents
Wireless communication method and apparatus for transferring buffered enhanced uplink data from a mobile station to a node-B Download PDFInfo
- Publication number
- TWI287934B TWI287934B TW093134546A TW93134546A TWI287934B TW I287934 B TWI287934 B TW I287934B TW 093134546 A TW093134546 A TW 093134546A TW 93134546 A TW93134546 A TW 93134546A TW I287934 B TWI287934 B TW I287934B
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- TW
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- Prior art keywords
- data
- enhanced uplink
- transmission
- enhanced
- request message
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- 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
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/14—Flow control between communication endpoints using intermediate storage
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- 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]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
Description
1287934 九、發明說明: 發明領域 本發明係有關包含無線傳送/接收單元(WTRU)及B節點之無線通信系 統。更特別是,本發明係有關提供無線傳送/接收單元上鏈(UL)訊務資訊至 B節點來排程加強上鏈(EU)傳輸。 背景 如分頻雙工(FDD)系統之無線通信系統中,加強上鏈涵蓋,產出及傳輪 延遲目前係被檢視於第三代夥伴計劃(3Gpp)之發表6讲6)中,除了排程及分 配無線網路控制器(跳)中之上鏈實體頻道之外,B節點(也就是基地台控 制器)係被用來與複數無線傳送/接收單元通信來做更有效決定,且即使無線 網路控制器保持對系統之全部控制,上鏈無線龍在短期上仍較無線網路 控制器管理的更好。類似方法已被用於分頻冑工模式及分時雙工仰切模式 之通用行動電信系統(UMTS)中之高速下連封包存取(HSDpA)之發表5㈣ 下鍵中。 為了使B節驗更有效分配歧及優先化於不職驗之間,B節點 而知道被緩胁無轉送/接收料巾麟侧_頻道之上歸料及其相 關優先性。然而傳統上鏈健發送方法具有容量_,鼠不能容納來自 無線傳送/接收單元之詳細訊務量量測(TVM)資訊報告。 發明内容 本^月係為自無線傳送/接收單元(也就是行動站)至B節點轉移緩衝加 強上鏈資料之無線通信方法及裝置。該裝置可為無線通信系統,無線傳送/ 接收單元及/或積體電路(IC)。加強上鏈資料係被產生及儲存於無線傳送/接 1287934 收單元之緩衝时。無線傳送/接收單元傳送起始加強上料傳輸要求訊 息至B即點指不無線傳送/接收單元具有蝴上物_至B節㈣起 始加強上鏈資料傳輸要求訊息包含纖傳輸格式組合(tfc)娜訊務指 標之要求。喊接收該起始加強上鏈資料傳輪要求訊息時,B節點係藉由 傳輸加強上鏈資料排程訊息至無線傳送/接收單元來排程無線傳送/接料 元及B節點間之-個或更多被允許加強増料傳輸。繼允許加強上 鍵資料傳輸足以支援傳輸所有被儲存於緩衝器中之加強上鍵資料,則無線 傳送/接收單元轉移所有被健存於緩衝器中之加強上鍵資料至B節點。否 則,無線傳送/接收單元傳送一部分加強上鏈資料及預期傳輸格式組合或詳 細訊務量量測資訊至B節點。
被用來轉移被儲存於無線傳送/接收單元之緩衝器中之加強上鍵資料之 程序,係視該加強上鏈資料量是否超過被建立門檻而定。起始加強上鏈資 料傳輸要求訊息僅於被儲存加強上鏈資料量超過被建立門檻之後才被傳送 至B節點。當被建立門檻未被超過時,無線傳送/接收單元可轉移所有來 1 無線傳送/接收單元之緩衝H之加強上鏈f料至B _不諸程來自B節點 之資訊。若競立門檻概定鱗,廳線/魏單元僅域收來自B 節點之排程資訊之後才從無線傳送/接收單元之緩衝器該被儲存加強上鏈資 料至B節點。 ' 加強上鏈資料傳輸要求訊息可被辨識於至少一層j實體控棚位或層] 媒體存取控制(MAC)標頭中。 預期傳輸格式組合或資料訊務指標可被發送於加強上鏈專用實體控制 1287934 頻道(EU-DPCCH)上之至少-實體控制攔位中。加強上鏈專用實體控制頻道 上之另一攔位可包含其他加強上鏈相關訊息。若無加強上鏈資料可供無線 傳送/接收單元轉移至需進-步排程之B節點,則該實體控制搁位係為空置 或不被包含。 替代實施例中,加強上鏈資料傳輸訊息可包含具有包含預期傳輸格式 組合或詳細訊務量量測資訊之攔位之媒體存取控制標頭。該媒體存取控制 標頭可進-步包含-個或更多加強上鏈舰存取控制攔位。#媒體存取控 制標頭為空置或不被包含時,則無加紅鏈資料可供無線傳送/接料元轉 _ 移至B節點。 圓示簡單說明 本發明可從以下較佳實施例說明及附圖例得到更詳細了解,其中: 第1圖顯示依據本發明操作之無線通信系統; 第2圖為用於第1圖系統當被加強上鏈資料排程訊息允許之加強上鏈 責料傳輸不足以傳送所有被緩衝於無線傳送/接收單元之加強上鏈資料時之 信號流程圖; φ 第3圖為用於第1圖系統當被加強上鏈資料排程訊息允許之加強上鏈 身料傳輸足以傳送所有被緩衝於無線傳送/接收單元之加強上鏈資料時之信 號流程圖; 第4圖顯示依據本發明一實施例被用來經由加強上鏈頻道要求加強上 鏈資料排程資訊之框結構; 第5圖顯示依據本發明另一實施例被用來指示預期傳輸格式組合或詳 7 1287934 細訊務量賴敗物㈣崎輪(pD職及 流程圖 第6圖顯爾核㈣麵她_也_如法步驟處理 較佳實施例之詳細說明 此後’此^線__元”名詞係包括但不受限於使用者設備 ㈣,行動站,蚊或行_戶單元,呼叫料任何可操作於無線環境中 之任何其他類型裝置。 此後,當被稱為”B節點”名詞者,係包括但不魏於基地台,位址控制 器,存取點或無線環境中之任何其他接介裝置。 本發明可被進-步應用至分時雙工,分頻雙工,分時_同步分碼多重存 取(TD-SCDMA),通常被應用至通用行動電信系統,分碼多重存取 2000(CDMA2000)及分碼多重存取(CDMA),但亦可被設想應用於其他無線 系統。 本發明特性可被併入積體電路或被配置於包含複數互連組件之電路 中。 第1圖顯示依據本發明操作之無線通信系統1〇〇。系統100包含經由無線 信號115彼此通信之一無線傳送/接收單元1〇5及一B節點110。無線傳送/接收 單元105包含至少一緩衝器120。 第2圖為用於無線通信系統100當被第一加強上鏈資料排程訊息允許之 一個或更多加強上鏈資料傳輸不足以傳送所有被儲存於無線傳送/接收單元 105之緩衝器120中之加強上鏈資料時之信號流程圖。加強上鏈資料205係被 1287934 產生於無線傳送/接收單元105且被儲存於無線傳送/接收單元105之緩衝器 12〇中° §緩衝H 12〇中之加強上鏈資料量超過被建立加強上鍵資料緩衝門 檻時’無線傳运/接收單元1〇5係經由力口強上鏈信號發送頻道傳送起始要求訊 Ά0至B即點110。當被建立門檻未被超過時,被無線傳送/接收單元酬專 送之加強上鏈資料傳輸係不需被排程。 起始要求訊息21G可包含-職傳輸格式組合或—龍訊務储。若加 金上鏈控制頻道之受限酬載谷量不能容納預期傳輸格式組合之信號發送, 則無線傳送/接收單元1〇5可傳送訊息至B_11〇,指示無線傳送/接收單元 〇5/、有加強上鏈資料經由加強上鏈控制頻道傳送至B節點“ο。預期傳輸格 式組合可為可能上鏈傳輸格式(或傳輸格式組合)之預組表列指標。 仍然參考第2圖,接收起始要求訊息21〇時,B節點11〇係經由第一加強 上鏈排耘汛息215排程無線傳送/接收單元丨〇5&B節點11〇間之一個或更多 加強上鏈資料傳輸。回應接收第一加強上鏈排程訊息215時,無線傳送/接收 早疋1〇5係傳送被第-加強上鏈難訊息215允許之—個或更多加強上鍵資 料傳輸220至B節點11〇。若被第一加強上鏈排程訊息215允許之加強上鍵資 料傳輸不足以傳送所有被緩衝於無線傳送/接收單元1〇5中之加強上鏈資 料’則無線傳送/接收單元105傳送包含預期傳輸格式組合資訊之加強上鏈資 料傳輸22〇至B節點11〇。被包含於訊息21〇及22()中之職傳輸袼式組合資訊 可與加強上鏈資料傳輸220—起被發送於至少一實體控制欄位或媒體存取 控制標頭中。預期傳輸格式組合可藉由指標反映為預定傳輸格式組合表 列。預期傳輸格式組合係被B節點11〇用來決定及產生接續排程訊息 1287934 225a-225n 〇 可替代是,由於預期傳輸格式組合資訊,詳細訊務量量測資訊可被提 供加強上鏈資料傳輸220。詳細訊務量量測資訊可指示可被與被映射至加強 上鍵專用頻道(EU-DCH)之優先專級相關之個別訊務流(頻道)相關之被緩衝 資料量。B節點110可經由加強上鏈資料傳輸220使用預期傳輸格式組合或詳 細訊務量量測資訊之廣泛知識及潛在相關優先性報告來決定接續上鏈排 程。當無線傳送/接收單元105稍後獲得額外加強上鏈資料時,無線傳送/接 收早元105可選擇報告更新預期傳輸格式組合或詳細訊務量量測資訊至b節 馨 點110°B節點110接著經由接續加強上鏈資料排程訊息225a_225n從無線傳送 /接收單元105排程加強上鏈資料傳輸至B節點11〇。 第3圖為用於無線通信系統1〇〇當被第一加強上鏈資料排程訊息允許之 一個或更多加強上鏈資料傳輸足以傳送所有被儲存於無線傳送/接收單元 105之緩衝器120中之加強上鏈資料時之信號流程圖。加強上鏈資料3〇5係被 產生於無線傳送/接收單元105且被儲存於無線傳送/接收單元1〇5之緩衝器 120中。當緩衝器120中之加強上鏈資料量超過被建立加強上鏈資料緩衝門 馨 檻時,無線傳送/接收單元105係經由加強上鏈信號發送頻道傳送起始要求訊 息310至B節點11〇。起始要求訊息310可包含一預期傳輸格式組合或一資料 訊務指標。絲社鍵㈣鑛之姐_㈣不駄_麟輸格式組 合之信號發送,則無線傳送/接收單元⑽可傳送訊息至轉點11(),指示無 線傳送/接收單元105具有加強上鏈資料經由加強上鏈控制頻道傳送至B節 點110。預期傳輸格式組合可為可能上鏈傳輸格式(或傳輸格式組合)之預組 10 1287934 k 表列指標。 當被建立加強上鏈資料緩衝門檻未被超過時,被無線傳送/接收單元1〇5 傳送之加強上鏈資料傳輸係不需被B節點削排程。 仍然參考第3圖,接收起始要求訊息31〇時,B節點11〇係經由加強上鍵 排程訊息315排程無線傳送/接收單元1〇5及B節點11〇間之一個或更多加強 上鏈資料傳輸。回應接收加強上鏈排程訊息315時,無線傳送/接收單元ι〇5 係傳送被加強上鏈排私訊息315允許之一個或更多加強上鍵資料傳輸现至 B節點110。若被加強上鏈排程訊息315允許之加強上鏈資料傳輸足以傳送所 有被緩衝於無線傳送/接收單㈣5中之加強上鏈資料,則所有被儲存於無線 傳送/接收單元105之緩衝器12〇中之加強上鏈資料係被傳送至3節點11〇。此 例中,指示預祕輸袼式組合鱗細贿量制f訊之上鏈傾發送資訊 係不被包含或相關訊息攔位保持空置,指示無線傳送/接收單元1〇5不需進一 步排程分配。 第4圖顯示依據本發明一實施例被用來經由加強上鏈頻道要求加強上 鏈資料排程資訊之框結構4〇〇。框結構4〇〇可被併入先前被說明於第2圖之起 始要求訊息210及潛在地加強上鏈資料傳輸22〇。 框結構400包含一’’被要求傳輸格式組合資訊/加強上鏈資料指示,,搁位 405及一”其他加強上鏈相關訊息,,欄位41〇。被要求傳輸格式組合資訊/加強 上鏈資料指示攔位405係被發送於加強上鏈專用實體控制頻道上之至少一 實體控制欄位中。空置被要求傳輸格式組合資訊/加強上鏈資料指示攔位4〇5 係指示並無多餘被緩衝加強上鏈資料供無線傳送/接收單元丨〇5傳送至B節 1287934 點110,因此不需B節點110進—步排程分配。加強上鏈專用實體控制頻道可 為編碼或以加強上鏈專用頻道及/或高速專用實體控制頻道(HS-DPCCH)進 行時間多工。 第5圖顯示依據本發明另一實施例被用來指示預期傳輸格式組合或詳 細訊務量量測資訊之舰存取㈣龄㈣單元格式·。雜存取控制協 定資料單元財5GG可被併从於第2圖之加m倾傳輸22〇 及潛在地起始要求訊息21〇。 媒體存取控制協定資料單元袼式獨包含一,,被要求傳輸格式組合資訊/ # 詳細訊務量量測資訊攔位” 505,一或更多,,其他加強上鏈媒體存取控制標頭 攔位’’51G。被要树輸格雜合資麟細贿量制資卿娜係被發 4於加強Ji轉輸之媒體存取控制標·。空置被要雜輸赋組合資訊/ 詳細訊務量量測資訊欄位505係指示並無多餘被緩衝加強上鏈資料供無線 傳送/接收單元105傳送至轉點11〇,因此不需綠點11〇進一步排程分配。 第6醜示依據本發明包含從無線傳送/接收單元1〇5轉移使用者資料至b 節點110之方法步驟處理_ 程圖。步驟6〇5中,加強上鏈資料係被產 _ 生及被儲存於絲傳送/接收單元⑽之緩衝器⑽巾。選擇性轉⑽中, 係決定被儲存於無線傳送/接收單元1〇5之緩衝器12〇中之加強上鍵資料量 是否超過賊立門檻。當無麟送/接料元1G5之緩_ 12()巾之加強上 鏈:貝料i未超過被建立門檻時,加強上鏈傳輸係被允許不需B節點排程, 而所有被儲存加強上鏈資料均被傳送至B g卩點削(步驟63())。若被儲存加 強上鏈資料量超過被建立門檻時,無線傳送/接收單元1〇5係傳送包含預期 12 1287934 傳輸格式組合資訊或僅訊務指標(也就是加強上鏈資料指示)之加強上鏈資 料要求訊息至B節點110,指示無線傳送/接收單元1〇5具有加強上鏈資料 傳送至B節點。 應注意被建立加強上鏈資料緩衝門檻可被設定為零。此例中,無線傳 送/接收單元105之緩衝n 120巾之任何加強上鏈資料量之儲存一直會觸發 起始要求訊息210之傳輸。 仍然參考第6圖,步驟62G中,b節點則傳送_個或更多被允許加強 上鏈資料傳輸資訊之加強上鏈資料排程訊息至無線傳送/接收單元1〇5來排鲁 程被緩衝於絲傳送/接收單元1G5中之加強上鏈資料傳輸至B節點⑽。 步驟625巾,無線傳送/接收單錢5係決定被允許加強上鏈資料傳輸是否 足以傳送所有被緩衝加強上鏈資料。若目前排程資訊所允許之加強上鍵資 料傳輸足以支援傳送所有被儲存於緩衝器12G中之加強上鏈㈣,則所有 被緩衝於麟傳送/純單元⑽巾之加強上着料取被鱗加強上鍵資 料傳輸被傳送至B節點ιι〇(步驟630)。 若目前排程資訊所允許之加強上鏈資料傳輸不相支援傳送所有被緩 φ 衝於無線傳送/接收單元105中之加強上鏈資料,則無線傳送/接收單元奶 傳达包含預期傳輸格式組合或詳細訊務量量測資訊之一個或更多加強上鏈 貝料傳輸至B節點110(步驟635)。步驟_巾,B節點ιι〇係決定加強上 鏈資料相關之優先性。B節點11〇使用被要求傳輸格式組合或詳細訊務量量 測資訊及相關優先性來決定加強上鏈實體頻道,並排程及傳送一個或更多 附加加強上鏈資料傳輸直到無任何被緩衝於無線傳送/接收單元奶中之加 13 1287934 強上鏈資料為止。 雖,本發明已參考較佳實施例被特別顯示及說明,但熟練技術人士廉 了解’只要*背離上述本發明範辆可做各種形式及細節 。-
元件符號說明 I WTRU無線,,收單元EU加強上鏈TFC傳輸格式組合 TVM Λ務里里測 MAC媒體存取控制1〇〇無線通信系統 105無線傳送/接收單元n〇 b節點 120緩衝5|
Claims (1)
- ^1287934 年曰修替換頁 、申請專利範圍: •種用於寬帶分碼多重存取的使用者設備(UE)的加壯鏈㈣傳輸 之方法,該方法包含·· 虽该使用者設備未被排程該加強上鏈傳輸時: 在沒有排程該加強上鏈傳輸的情況下允許該使用者設備傳 輸一加強上鏈資料達-預先決定的Η檻值;當用以儲存該加強上鏈傳輸的該加強上鏈資料之一緩衝器 接收到該加強上鏈資料時,開始—排程要求訊息之傳輸,該排程要求訊息 以-加強上鏈媒體存取控锻料進行多卫,且該排程要求訊息指示與一優 先性頻道相_該緩衝ϋ中的加強上鏈資料量; 接收資訊以排程該加強上鏈傳輸; 回應所接收的加強上鏈傳輸排程資訊,於一加強上鏈頻道傳輸 該加強上鏈資料;及 當該使用者設備已被排程該加強上鏈傳輸時: 當該加強上鏈資料位於該緩衝器中以供傳輸,於一加強上 鏈頻道傳輸—更新的排程要求訊息,其中該排程要求訊息以該加強上鏈媒 體存取控制資料進行多工。 2·如申凊專她圍第丨項之方法,其中該排程要求訊息包含—加強上鍵 訊務量量測(TVM)資訊。 3. —種寬帶分碼多重存取的使用者設備,其包含: 虽一使用者設備未被排程一加強上鏈傳輸時,用於允許該使用 者設備在沒有排_加強上鏈傳輸的情況下傳輸_加強上鏈資料達一預先 15 1287934 決定門檻值嫩,糊嘯㈣塌雜輸社鏈資料之一 、_接收到該加強上鏈資料時,該裝置用以開始—排程要求訊息之傳 輸,該排程要求訊息係以一加強上鏈媒體存取控㈣料進行多工,且該排 程要求訊息指示與-優先性頻細_緩衝器中的加強上鍵資_ 用以接收訊息以排程該加強上鏈傳輸的裝置; 用以應所接收的加強上鏈傳輪排程訊息而於一加強上鏈頻道 傳輸該加強上鏈資料的裝置;以及 當該使用者設備已被排程該加強上鏈傳輸,用以於一加強上鍵春 頻道中傳輸-更新的排程要求訊息的裝置,其中該排程要求訊息以該加強 上鏈媒體存取控制資料進行多工。 4·如申請細_取使时賴,其找難縣訊息包含一加 強上鏈訊務量量測(TVM)資訊。 5· -種分頻雙卫寬帶分碼多重存取的使用者設備,其包含·· 一緩衝器,其經配置以接收用於傳輸的-加強上鏈資料,其中 該加強上鏈資料與—邏輯頻道相關;以及 0 一傳送裝置,其經配置赠該使用者設備未被排程__加強上鍵 傳輸時,允賊使时讀在沒麵_加紅_細航下傳輸該加 強上鏈資料達-預先決㈣Π檻值,且^_存該加強上鏈傳輸的該加 強上鏈資料之-緩衝器接收到該加強上鏈資料,其用以開始一排程要求訊 息之傳輸’該雜要求訊息細—加強±鏈舰存取控制資料進行多工, 且該排程要求訊息指示與—優先賴勒獅該麟Μ的加強上鍵資料 161287934 -接收裝置’其經配置轉㈣轉_加強上鏈傳輸的資 並回應所接收的加強上鍵傳輸排程訊息而於—加強上鍵頻道傳輸該加 強上鏈資料; 其中,該傳送裝置經配置以於該使用者設備已被排程該加強上鏈傳輸 及該加強上鏈資料位於該緩衝器中以供傳輸時,於一加強上鏈頻道傳輸一 更新的排程要求訊息,其中該排程要求訊息以該加強上鏈媒體存取控制資 料進行多工。 6.如申請專利範圍第5項之使用者設備,其中該排程要求訊息包含 —加強上鏈訊務量量測(TVM)資訊。 ^* 一、圖式: 1287934 I 月 ':曰修波)正替換頁I 1/3205 WTRU EU資料 305 WTRU 105 110- 啟始要求訊息 (包含預期TFC或資料訊務指標) 第一加強上鏈(EU)資料排程訊息 EU資料傳輸 (包含預期TFC或詳細TVM資訊) 接續EU資料排程訊息 第2 Β節點 210 215 220 225a 225η 105 110. B節點 EU資料 啟始要求訊息 (包含預期TFC或資料訊務指標) 加強上鍵(EU)貧料排程訊息 EU資料傳輸 所有經缓衝的E U資料 第3圖 ^p-310 >315 ^1—320 12879342/3 is I f Tiins^衅 画呀蛛 S寸 鲽实觫113/琮#0」1客^盹。 与箄既鲽 OVIAmLU^棘¥細 51/0自客^咏^ 画ίο觖 00寸 §LO 19 1287934否 WTRU之缓衝器中'、 EU資料量是否超 過所建立的門檻/ WTRU傳送包含預期TFC資訊之啟始EU資料傳輸要 求訊息及貧料訊務指標至B節點 615 B節點傳送包含一或更多被允許孤資料傳輸之資 訊之EU資訊排程訊息至WTRU 、 6202,所有在WTRU 資料 WTRU傳送包含預期TFC或詳 細TVM資訊之一或更多EU資 料傳輸至B節點 ' B節點決定定EU資料相關優先 性、排程及傳送一或更多附 加EU資料傳輸直到無任何eu 資料在WTRU中緩衝為止 第6圖 640 630
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