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TWI258313B - Synchronization for extending battery life - Google Patents

Synchronization for extending battery life Download PDF

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Publication number
TWI258313B
TWI258313B TW092112255A TW92112255A TWI258313B TW I258313 B TWI258313 B TW I258313B TW 092112255 A TW092112255 A TW 092112255A TW 92112255 A TW92112255 A TW 92112255A TW I258313 B TWI258313 B TW I258313B
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Taiwan
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wtru
data
wtrus
transmission
time slot
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TW092112255A
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TW200401574A (en
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Steven Jeffrey Goldberg
Stephen E Terry
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Interdigital Tech Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/1607Supply circuits
    • H04B1/1615Switching on; Switching off, e.g. remotely
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Primary Cells (AREA)

Description

1258313 五、發明說明(1) 發明領域 本發明係關於叙始 關於無線通訊系統内盔t L領域,更特定言之,本發明係 背景 内無線裝置的電力來源的最適化。 電池操作裝置,如益 尋找送至此處的可处次二、、傳輸/接收單元〈WTRU〉愈常 提供用電話的通話4介,裝置消耗電力愈多。在不僅 該裝置尋找自網路的二2 ’、提供資料傳輸的網路及裝置, 的電話或進來的資料二二式依據該裝置是否尋找進來 關於用電話有所不同。 中在特定電話號碼被撥赛=,使用者習慣於地面網路,其 合在無線環境的此期望:彳葙二聲幾乎立即被聽到。為符 小化當認知-個人,出電;^必須常常掃瞒網路以最 伽必須常常掃晦網接的延遲’亦即,該 送出一個呼叫气於卞1自:找撥入的電話以最小化當網路 叫訊號間的時間 心及富接收mu實際上檢查到該呼 傳輪=ίί常合適用於用電話的通話方式,但對資料 _ ^ 的。關於資料傳輸,確保幾乎即時回應於 ί機嚴格要求為不需要的。當傳輸資料至如傳 2機及類似裝置的WTRUS時,較長的延遲一般是被容忍 X然而,-般希望此種裝置,,即時"回應顯示有撥入資料 傳輪的訊息,所以,當處理資料傳輸時,在某些情況下, 該網路亦必須被相當頻繁地掃瞄,但即使在此種情況下, 網路必須被掃瞄的頻率少於當處理用電話的通話方式時。
1258313 五、發明說明(2) 可接受的延遲量依據被傳輸的資料形式及使用者的喜 好而異,例如,當資料被非頻繁地更新時,〈例如交通或 氣象資料〉,較長的延遲可被容忍。在傳呼機的情況下, 合理的回應時間應以使用者所預期的時間延遲以回應經傳 呼訊息的方式被評估。在多重網路傳輸〈例如股票報價、 運動分數等〉的情況下,一些使用者希望資料偶爾被更新 以使它們具較長的電池壽命,其他使用者較不在意電池壽 命且僅希望資料快速被更新。希望常常更新的使用者之實 例為希望快速信息更新的人及他們的WTRU連接至外部電力 供應的人。在如股票報價的情況下,如有偶爾觀看者,及 希望有立即變化通知的人,如此,若使用者希望快速回應 訊息’回應時間應相當快速,但仍遠大於WTRU知曉有撥入 電話的所需回應時間。 因此,希望具一種方法及系統以有效地支援資料傳輸 及用電話的通話方式。 摘要 一種無線網路允許WTRUs可根據同步機制以停頓操作 ϋΐϊ,同步信息被提供至該WTRUs以通知它們何時它 J為停頓模式及何時它們必須喚醒及回復 較佳具體實施例詳細敘述 、y =本發明,同步信息被提供至該無線傳輸/接收單 時它們以通知它們何時它們可為停頓模式〈亦即何 ]了為睡眠狀態〉及何時它們必須喚 為敘述本發明目的,一種削可具僅傳輸、僅:J二
第6頁 1258313 五、發明說明(3) 輸及接收能力,亦即,一種WTRU可為能在無線環境接收 及/或傳輸資料的任何形式裝置。 現在參照第1圖,一種網路的代表被表示,其中一或 更多基地台21與複數個WTRUs通訊,例如被提及的WTRU 22,當敘述本發明時。如解釋,WTRU 22可為由網路支援 的任何數目的裝置,實例包括用戶設備〈UE〉、手機、傳 呼機、黑莓〈TM〉裝置、具數據機連接的電腦或能夠在無 線環境操作的任何其他裝置。該基地台2 1由無線電網路控 制器〈R N C〉2 5控制’其執行各種網路監督及通訊功能。 該基地台21包括訊號處理電路31及RF階段32,其包括傳輸 功能。由基地台2 1的訊號被傳輸至在其胞元或傳輸區域 〈以天線33、34表示〉内的WTRUs。WTRU 22具RF階段37及 訊號處理階段38,一種接收功能由WTRU的RF階段37提供以 接收由基地台2 1傳輸的訊號。在雙路徑裝置的情況下,RF 階段32及37皆具傳輸及接收功能,允許WTRU 22在上行傳 輪資料及在下行接收資料。雖然傳輸需要較接收顯著為大 的能量,停頓操作的課題主要影響下行,故WTRU 22的接 收器功能為顯著的。 根據本發明,當RF階段37正在接收來自基地台21的訊 號,WTRU 22使用其訊號處理電路38以控制,此允許WTRU 2 2的接收功能的操作主要在當訊號被預期要包括意欲用於 特定WTRU 22的資料之期間為活動的。在至少一些當訊號 不欲用於特定WTRU 22的資料之時間期間,WTRU變得停 頓,此表示由WTRU 22的大部份接收及訊號處理被關斷。
1258313 五、發明說明(4) 不論資料被自網路傳輸的方式,該WTRU被較佳地同步 化以使它們可被補充及進入睡眠以最大化電池壽命及滿足 使用者喜好。提供至WTRUS的同步化信息根據資料被自網 路傳送的方式被提供,亦即,不論資料被自網路傳輸的方 式’同步化信息被提供至WTRUs以使它們知道何時它們必 須被喚醒及何時它們可進入睡眠。 如熟知本技藝者已知,資料可以各種方式依所欲自網 路提供至WTRUs,在一個具體實施例中,資料可以經機制 傳輸形式被傳送,在此情況下,網路以已知機制傳輸各種 形式的廣播或群播資料,此機制被緊密地同步化為傳送 WTRU及接收WTRU〈 s〉已知的時框。該WTRUs可接著同步化 它們的喚醒以尋找何時資料可被或將被傳送的事件。為於 第三代蜂巢式網路進行此具體實施例,機制信息可由共用 控制頻道〈如廣播共用控制頻道〈BCCH〉〉發訊號或是專 屬控制頻道〈DCCH〉發訊號而被提供。在BCCH發訊號被使 用的情況’機制〈亦即,同步化〉信息可對所有廣播及群 播服務發訊號。若DCCH發訊號被使用,僅特定關於接收 WTRU服務之機制會被發訊號。 在另一具體實施例中,資料可以多網路傳輸的方式被 傳輸,亦即,如所述,一些使用者希望信息僅偶爾被更新 以有利於較長的電池壽命’然而其他使用者希望資料快速 地被更新而較不在意電池壽命。所以,在此具體實施例 中,資料以符合使用者更新頻率對電池壽命的喜好之速度 被傳輸〈即使沒有任何資料變化〉。藉由以同步化的速度
1258313 五、發明說明(5) 快速地傳送資料 < 亦 及重覆該傳輸即使告沒吏用者所欲的最高可提供速度〉 口_可根λ Λ =\料變化時,個別接收 料,藉由提供可調整;^//1時間間隔喚醒及搜尋資 二者之間〉的需求。 耘度,此滿足兩組使用者〈及在 因可接受延遲量依摅4主+ ^ 及電力消耗間的任何協定對:二:者f用而變&,在延遲 能的,所以,延€〈言即、同使用者具不同最適值為可 化,因低延遲盘ί電ΚΐΓΓ1〉可基於用途被最適 間的_ fi + ; f力4耗衝突。當WTRU未於主動使用時 間的:月間’此變得更為特別顯著。 WTM ^ ί第二代蜂巢式網路進行此具體實施例,一曰接收 WTRU知曉經機制廣 ^ 一接收 需求基準押得在群播傳輸,之後該接收WTRU可基於 〈DSCH〉I傳^服2 =道〈FACH〉或下行分享頻道 資料,^明或非確認模式傳輸廣播或群播 :需要接™決定接收是否為獨立被需求的而 ^ 又互作用或是引起要在網路上被認知的誤差。 網ΐ: Ϊ輸被提供的本具體實施例的改良為僅直到在 傳輸不接收有某些謂3才被傳輪。此改良具當 WTRUs的上行傳:Λ 之 此改良具需要自 在第三获盛W 及可能不合適大量的WTRUs。關於 索〇1蜂巢式網路的實施,有複數個網路確認替代方 八, 當有單一接收WTRU,無線連結控制確認模式提 1258313 五、發明說明(6) 供確保傳輸的自動回覆請求機 WTRUs,層3確認可由在存取芦=田有複數個接收 是由非存取層發訊號的透通j f、線資源控制發訊號或 在另一具體實施例中,網=:轉移而被提供。 亦即,而非-直傳送訊息,纟某^等待傳輸的訊息, WTRUs有要給它們的訊息存在(/在二 ' ’更有^為僅通知 的這些WTRUs而後要求其自網路的傳輸,訊息SB 望讯息 =訊f或群播服務的登錄以接收伴隨該“ # ,心,虽僅少量WTRUs被預期要要求實際訊息時,且複數 個WTRUs希望進行此工作的實際能力時,此方法是合適 的。此情況可能發生,例如在通知WTRUs的訊息存在之初 始傳輸中僅有限信息的情況。在第三代蜂巢式網路中,該 接收WTRU會以層存取層或非存取層發訊號的方式產生服務 的要求’而後網路發訊號廣播機制信息或是建立專屬無線 承載以進行服務傳輸。亦即,知道具要求訊息或多訊息服 務的WTRUs的數目之網路決定傳輸的最有效方法,若有很 夕接受者’化息的機制會在共用控制頻道上發訊號,此信 息可辨識共用頻道如FACH或DSCH,及服務接收的傳輸時 間。右為少1的W T R U s要求訊息或服務’專屬頻道會被建 立至每一個伴隨此訊息或服務的要求或登錄的WTRU。 現在參考第2圖,包括由基地台至多個WTRUs所傳輸的傳輸 序列之訊框圖被示出。如所提及,當伴隨此訊息或服務的 特定WTRU或一組WTRUs為喚醒的並尋求資料時,傳輸的遞 第10頁 1258313 五、發明說明(7) 化以使導引至伴隨此訊息或服務的特定WTRU或一 中,今傳、^被遞送,為完成此,在一個具體實施例 構成Ilf區分為框架54 ’其中七十二(72)個框架54 .,π .超、、及成框,如第2圖所示。為簡化敘述本發明, 兩個超級訊框5 1、5 2的都, 框51被不出。然而,應注意超級訊 框加的#纫。f讯框重覆系列的一部份,亦應注意具72個 級訊框被提供僅做為實例,因其他多重訊框序列 句口J月&的。 _,,54被區分為時槽56,如框架71的擴充視圖所 :变ΪΓ、一個框架(例如框架71)的時槽56包括被指定為 心於+至(夕 14 )的傳輸封包’每一個時槽56可包括意 :用於:或更多裝置的資料’做為實例槽6包括簡 的貝料及槽12包括WTRUs 102及1〇3的資料。 t1!1至103較佳為同步化它們的接收以使它們能夠在 :口個別的放置時間間隔接收資#。資料接收的 之使用表示一旦WTRU被提供其同步化訊息(亦即關於 :伙用於該WTRU的訊號之特定時間順序的訊息),該 ° :-部份超級訊框以此時間順序同步化及 =停頓)。此產生減少的電力消耗因為在睡眠狀態二 U,、大部份或所有RF接收電路為關斷的。該WTRU較佳為 部份其訊號處理電路亦被關冑。在此具體實施例中, 電力消耗的減少約略對應於被忽略的框架數目。 :旦被同步化,WTRUs 1〇1至1〇3僅在其個別時槽被喚 + 特定插入期間(已知為傳輸時間間隔(ττι ))的、
第11頁 五、發明說明(8) 無線訊框及多重訊框。由網路的 框,在傳輸資料至WTRU 101,網路|兮母一個超級訊 6。 4塔會荨待框架7 1、時槽 應注意若需要時,WTRUs可於1从士 了它們的經#宗揭彳, 、/、他時間喚醒(亦即除 ί匕们的厶私疋槽),例如,可能因丘 此外,網路及WTRUs可被採用以使特辣^ : ° σ〜、-路傳輸至特定"RU或一組WTRUs使二;=訊號被,網 醒及在它們的指定槽外接收資料。、 S必3被喚 應注意使傳輸成為超級訊框、 ^ ^ ^ v 所欲變化。例如,在上文的^框木、及槽的區分可依 缺而Γΐ 框架的至少-個槽尋找資料。 用、者^ f料傳輸可依所欲提供、給使用者以滿足使 ::對電池壽命及資料更新頻率的喜好。戶斤以,特 匕機構的時序可類似地被變化。做為實例,盆γ At & ^ 網路資祖、勝、、,立*, 做马貝例,其可能產生在 過-個=ί 的接收,其中謂〇喚醒期間,超 及槽=:框通過,在此期間WTRU喚醒及在其指定框架 雖然本發明以較佳具體實施例的方式被敘述,复 文申請專利範圍所列出的變化為熟知本技蓺二 有出。 ""号可明顯 1258313 圖式簡單說明 第1圖為顯示無線通信網路的圖。 第2圖為顯示用於本發明具體實施例的訊框結構的資料 圖。 元件符號說明
第13頁 3 層 6、 12 > 56 時槽 21 基地台 22 > 10卜 102 、 103 WTRU 25 無線電網路控制器RNC 31 訊號處理電路 32 \ 37 RF階段 33 >34 天線 38 訊號處理階段 51 '52 超級訊框 54 '71 框架 71E 擴充視圖

Claims (1)

1258313 六、申請專利範圍 ' — -- 1次 種同步化在無線通訊網路及在其内的WTRUS操 一貝料,輸之方法,該方法包括: ^ f提供於框架的資料同步化機制,其中每一個框架包括 =、個時槽,而至少一個框架包括意欲用於至少一個在無 蛣^讯網路内的WTRU操作之資料,該同步化機制為每一個 匡^ =識那一個時槽包括意欲用於那一個WTRUs的資料; 在該時槽被辨識為包括意欲用於該WTRU的資料期間活化該 WTRU以接收資料;及 在該時槽未被辨識為包括意欲用於該”⑽的資料 WTRU置於停頓狀態。 Ί肘泛 2 ·根據申請專利範圍第1項的方法,其中每一個時槽包 複數個WTRUs的資料。 3. 根據申請專利範圍第1項的方法,其中該框架被組合為 一系列框架且每一個WTRU被指定在一系列框架内的一個時 槽。 4. 根據申請專利範圍第1項的方法,其中該框架被組合為 一系列框架且每一個WTRU被指定在一系列框架内的複&個 時槽。 5·根據申請專利範圍第1項的方法,其中每一個框架包括 1 5個時槽。 6 ·根據申請專利範圍第4項的方法,其中在每一個框架系 列’一個時槽被指定至WTRU。 ” 7· —種同步化在無線通訊網路及在其内的WTRUs操作間的 資料傳輸之方法,該方法包括:
1258313 六、申請專利範圍 以尋找資料時,同步H化之、。控制頻道提供機制信息喚醒 # ^7 ^ ^ ^ ^ ^ ^ a, 收賢料^步$。W奴用於該WTRU的資料期間活化ffTRU以接 9槽未T辨申第7項的方法,其進-步包括在該時 識為包括思欲用於該WTRU的資 於停頓狀態之步驟。 的貝枓期間將該WTRU置 的資料通訊網路及在其内的wTRUs操作間 二貝丁寸得翰之方法,該方法包括: 提供具多重網路傳輸的機制的WTRUs ; 當該WTRUs喚醒以基於該傳輸機 之;及 ※得輙機制而接收傳輸時,同步化 於W向存取頻道傳輸多重傳輸。 11·根據申請專利範圍第1 〇項的方法,A 在一下行分享頻道傳輸。 Μ其中該多4傳輸係 12·根據申請專利範圍第1 0項的方法, 送確認傳輪的接收之—確認訊號時;;::〔該WTRU傳 關於一特定WTRU而中斷。 人夕 雨的傳輸被 13· —種同步化在無線通訊網路 的資料傳輪之方*,該方法包括在其内的刪s操作間 提供具當顯示對該WTRU的資料是否 機制的至少一個打]^ ; 在的顯不被傳輸時的
第15頁 1258313 六、申請專利範圍 當該WTRU喚醒以搜尋資料時,同步化之; 使用層存取層發訊號要求意欲用於該WTRU的資料;及 建立一專屬無線承載以進行所欲資料的傳輸。 14. 根據申請專利範圍第1 3項的方法,其中該意欲用於該 WTRU的資料使用非存取層發訊號被要求。
第16頁
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