TWI281830B - Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel - Google Patents

Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel Download PDF

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TWI281830B
TWI281830B TW093132243A TW93132243A TWI281830B TW I281830 B TWI281830 B TW I281830B TW 093132243 A TW093132243 A TW 093132243A TW 93132243 A TW93132243 A TW 93132243A TW I281830 B TWI281830 B TW I281830B
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power
carrier power
rtigt
rti
estimated
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TW093132243A
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TW200529681A (en
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Guodong Zhang
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Interdigital Tech Corp
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/30TPC using constraints in the total amount of available transmission power
    • H04W52/34TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/005Control of transmission; Equalising
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H04B7/2631Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] for broadband transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/38TPC being performed in particular situations
    • H04W52/50TPC being performed in particular situations at the moment of starting communication in a multiple access environment

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)

Description

1281830 五、發明說明(1) 發明所屬之技術領域 ^發明關於蜂巢式網路内之初步下鏈傳輸功率的調 ;以;特定言之係關於調整非即時服務之初步下ί傳:功 曰進该服務之感受品質。 先前技術 之物:服務之突發性本質,用於nrt服務 說,半’、、_也疋突發而短暫的。就每一種配置來 品質、輪功率之準確度對於此配置之服務的感受 牛下“言碼塊錯誤率(bler)相當重要。當今而言,初 ί測ΐίΐϊί係由控制無線電網路控制器(c-RNC)依據 大 可取传性利用兩種不同架構估計。 因素,^ = 11減、機動性、量測值報告延時、及錯誤等 (sin所:二傳/功率可能顯著異於支㈣ 於實π V西果際而要的功率。倘若初步下鏈傳輸功率顯著低 要SIRV這备功告率;Λ配置起始時間内的實際SIR會遠低於必 是短暫的,、"午多傳輸錯誤。由於NRT服務之配置通常 法在短暫配在配置起始時間内遭遇到的錯誤可能無 专配置持績期間攤分以符合必要BLER。 發明内容 本發明提出一 步下鏈傳輪功率以 一種用來對一 種用於蜂巢式網路調整非即時服務之初 增進所感受服務品質的解決方案。 無線通信網路内之非即時服務進行初步
1281830 五、發明說明(2) 下鍵傳輸功率★用φ^·,, 鏈傳輪功率位^ T秋後^ 估計非即時服務之—初步下 較。判斷該估計功;ΐ;::::”位準與:間值做比 (cells)。倘若一^加是否會影響相鄰胞元 調整該初步下鏈傳輸V率:準影響相鄰胞元,則以-預定量 下鏈二 = = = 初下步 鏈傳輪功率位準。斗曾一士 I7守服務之一初步下 比較。以比較社果槽载波功率且與-間值做 比較所用間值;ϊΐ 周正該初步下鏈傳輸功率。以該 持於初步設定值 可將該初步下鏈傳輸功率加大或維 實施方式 士第1圖為一由c-RNC估計初步下鏈傳輸功率之一方法1〇〇 、机私圖,該C-rnc使用一全量測值型演算法或一公用量測 值^演算法。全量測值型演算法係在有專用及公用量測值 I供予RNC時使用,而公用量測值型演算法係在僅有公用量 、J值了供予題C時使用。方法1〇〇始於由c — rnc估計NRT服務 之初步下鏈傳輸功率(步驟1 〇 2 )。以估計的初步下鏈傳輸 功率與一閾值做比較(步驟1 04 ),且倘若該估計功率高於 该閾值即終止該方法(步驟丨0 6 )。 门、 倘若該估計功率低於該閾值(步驟1 〇 4 ),則判斷初井 下鏈傳輸功率之一增加是否會使相鄰胞元内的服務明顯劣 化(步驟1 0 8 )。倘若相鄰胞元内之服務會明顯劣化,則不
第7頁 五、發明說明(3) 做功率調整,且終止該方法(步 胞元内之服務不會明顯次仆 ;。但’倘若一相鄰 而定使該初步下鍵二::加;!=°4中遭遇之間值 後終止該方法(步驟丨0 6 )。 、疋里(步驟1 1 〇 )。然 直覺上來說,在條件許可去 功率會增進性能。在一膏祐☆丨^週田地加大初步下鏈傳輸 滿足下列條件之時會被加大··',仞步下鏈傳輪功率僅在 1 )經C-RNC估計之初步下金皋值 2)初步下鏈傳輪功率之增:功奋率低於-特定閎值。 顯劣化(舉例來說,造成曰 曰使相鄰胞兀内之服務明 鄰基地台(BS)之载波况)。此效應可藉由一相 亦可妒初牛ίΪ ί 或糟由下鏈干擾予以測定。 與其相關力值。每-閣值有-取決於NRT服務之必要BLE里、加里及邊等閾值之值亦 誤之容差之一指標因為必要BLER係為初步傳輪錯 一用來解決WCDMA Trm i +
輸功率問題的解決方宰干=口之NRT服狀 估計NRT服務之初步下輸眾。:=00始::C,C 計時槽載波功.Τι, 上目前時槽載波功率之伯 估气日n f率T低於一特定閾值(步驟204 )。倘若. 鏈傳‘ ::ί率,j:於最小β節點載波功’,則加大初步 上—=1率使付總時槽載波功率等於最小Β節點載波功率 數了 值MarginlQw (步驟2〇6) QMargin_ 是一設計參 ό、型值在2-5 dB範圍内。必要BLER之值越低、 1281830 五、發明說明(4)
Margin-之值越高。然後終止該方法(步驟2〇8 / 倘若該估計時槽載波功率大於最小β節點載波功率但小 於一載波閾值(ThreS()wn—Capwr ;步驟2〇4 ),則判斷相鄰胞元 之平均呀槽載波功率是否低於一特定閾值 / ^ η Λ 口 ^ ^llireSNeighbor.CaPwr (步驟210)。另-遥擇’可利用此無線發射/接收單元 (WTRU)在此胞^之時槽内的干擾信號碼功率(iscp)
ThreSNeighbor_丨SCP。這些閾值係由B節點之最大容許時槽載波 率以fNRT服務之必要BLER聯合決定。最大容許時槽載波功 率越咼、該等閾值會越高。此外,必要BLER之值越低、該 等閾值會越高。 平Ϊ時槽載波功率低於ThreS~·,加大初步 下鏈傳輸功率使得總時槽載波功率等於下述之較大者.最 =節點載波功率加上-邊際值Margin‘,或原始估計總 k槽載波功率加上一邊際值MargirWnai (步驟212)。
Marg i nmedium被決疋為一使得因最小b節點載波功率加上
Marginmedium而造成之干擾不會導致一相鄰胞元之時槽載波 f率接近其最大容許值的最高邊際值。Margin〇ngi㈤被決定 為一使得因在ThreS〇wn_CaPwr水準之b節點載波功率加上
MarginQriginal而造成之干擾不會導致一相鄰胞元之時槽載波 功率接近其最大容許值的最高邊際值。然後終止該方法 (步驟208 )。 在步驟210中,倘若相鄰胞元之平均時槽載波功率大於 ThreSNeighbQr_CaPwr,則不對初步下鏈傳輸功率進行調整(步驟 214)且終止該方法(步驟208 )。倘若估計時槽載波功率
1281830 五、發明說明(5) ' --- 大於載波功率閾值(ThresGwn CaPwr ;步驟204 ),則不對初步 下鍵傳輸功率進行調整(步驟214 )且終止該方法(步驟乂 2 0 8)。 應理解到在方法200中使用之所有參數(亦即邊際值和 f值)與BLER直接或間接地相關。實務上來說,所有參數 得經由模擬或現場測試/試驗予以微調。 ^ 第3圖係一用於非即時服務之初步下鏈傳輸功率調整之 一實施例的方塊簡圖。一C-RNC 30 0接收NRT資料。一媒體 存取控制器308安排NRT資料以供傳輸。c_RNc 3〇〇亦有: 來決定該等NRT資料之一初步傳輸功率位準的初步NRT 功率決定裝置3 1 0。 已排程NRT資料被送到B節點3〇2進行實體層處理31 2使 其格式化以供經由空氣介面306傳輸。一初步NRT傳輸功率 調整裝置314如前所述調整初步傳輸功率位準估計值。已 整的初步傳輸功率位準判斷被用於調整一放大哭3丨6之掸 益。已放大的NRT信號由-天線318或—天線陣二經由空^ 介面放射。WTRU 304利用其天線32〇或天線陣列接收該 N R ΊΜ5號且利用一 N R T接收器3 2 2復原該n R τ資料。 雖說以就圖式和文字說明本發明之特殊實施例,孰習 此技藝者可不脫離本發明之範圍做出許多修改和變型。以 上說明僅為範例,不以任何方式限制本發明。
1281830 圖式簡單說明 第1圖為非即時服務之初步下鏈傳輸功率調整之全面策略之 一流程圖;且 第2圖是一將第1圖所示策略施行於寬頻分碼多重存取 (WCDMA )分時雙工(TDD )系統的流程圖。 第3圖係一利用非即時服務之初步下鏈傳輸功率調整之系統 的方塊簡圖。 元件符號說明:
302 B節點 306 空氣介面 308 媒體存取控制器 310 初步NRT傳輸功率決定裝置 312 實體層處理 314 初步NRT傳輸功率調整裝置 316 放大器 318、 320 天線 322 NRT接收器
第11頁

Claims (1)

1281830 六、申請專利範圍 1 · 一種用來對一無線通信網路内 士 鏈傳輸功率調整的方法,苴包.、p日^服務進行初步下 ::::即時服務之-…鍵準; 以估汁的功率位準與一閾值做比較; 判斷該估計功率位準之一增加备 劣化;以及 否_使相鄰胞元内之服務 以該判斷步驟為基礎,以一預 率位準。 疋里调整该初步下鏈傳輪功 2鏈對:無線通信網路内之非即時服務進行初步下 =功率調整的方法,其包括以下步驟: 非即時服務之一初步下鏈傳輸功率位準; ^异一估計的時槽載波功率; 以该估計時槽載波功率與一閾值做比較;以及 以比較結果為基礎調整該初步下鏈傳輸功率。 估叶::專利耗圍第2項之方法’其中該計算步驟包含將該 4 i由Y下鏈傳輸功率加至一目前時槽載波功率。 兮專利範圍第2項之方法,其中該比較步驟包含比較 ”率與一 B節點之~最小載波功率位準。 該初牛π利範圍第4項之方法,其中該調整步驟包含增加 ^栗=下鏈傳輸功率,藉此使總载波功率等於該最小载波 刀年加上一邊際值。 利範圍第2項之方法’其中該比較步驟包含判斷 準且ί:載波功率是否大於一β節點之-最小載波功率位 旱且小於一載波功率閾值。
第12頁 1281830 六、申請專利範圍 7. 如申請專利範圍第6項之方法,其中該調整步驟包含: 判斷相鄰胞元之一平均時槽載波功率是否小於一閾值;以 及 倘若該平均時槽載波功率低於該閾值,則增加該初步下鏈 傳輸功率,藉此使總載波功率等於以下二值當中較大者: 該最小載波功率加上一第一邊際值,及該估計時槽載波功 率加上一第二邊際值。 8. 如申請專利範圍第2項之方法,其中該比較步驟包含比較 該估計時槽載波功率與一載波功率閾值。
第13頁
TW093132243A 2003-11-05 2004-10-22 Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel TWI281830B (en)

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US51769803P 2003-11-05 2003-11-05
US10/725,789 US7239885B2 (en) 2003-11-05 2003-12-02 Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100638702B1 (ko) * 2002-10-03 2006-10-31 인터디지탈 테크날러지 코포레이션 셀룰러 시스템에서 다운링크 전력 제어 시에 코드 전송전력 범위를 판정하는 방법 및 장치
KR100736474B1 (ko) 2006-06-14 2007-07-06 주식회사 팬택앤큐리텔 네트워크 지시에 의한 시스템 선택시의 기지국 접속 시간단축 시스템 및 방법
US8526990B1 (en) * 2010-03-17 2013-09-03 Sprint Spectrum L.P. Determination of initial transmit power based on shared transmit-power information
KR101683088B1 (ko) * 2010-10-01 2016-12-06 삼성전자주식회사 펨토 기지국의 송신 전력 설정 장치 및 방법
US12075363B2 (en) * 2022-12-16 2024-08-27 Nokia Solutions And Networks Oy Determining a radio transmission power threshold, and related devices, methods and computer programs

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI98674C (fi) * 1995-08-18 1997-07-25 Nokia Mobile Phones Ltd Menetelmä lähetystehon säätämiseksi yhteydenmuodostuksen aikana sekä solukkoradiojärjestelmä
US6463295B1 (en) * 1996-10-11 2002-10-08 Arraycomm, Inc. Power control with signal quality estimation for smart antenna communication systems
US5856804A (en) * 1996-10-30 1999-01-05 Motorola, Inc. Method and intelligent digital beam forming system with improved signal quality communications
US5842114A (en) 1997-02-12 1998-11-24 Interdigital Technology Corporation Global channel power control to minimize spillover in a wireless communication environment
US6175745B1 (en) * 1997-12-24 2001-01-16 Telefonaktiebolaget Lm Ericsson Initial transmit power determination in a radiocommunication system
KR20000013025A (ko) * 1998-08-01 2000-03-06 윤종용 이동통신 시스템의 순방향 초기 송신전력 제어장치 및 방법
GB9821089D0 (en) * 1998-09-30 1998-11-18 Koninkl Philips Electronics Nv Method for the communication of information and apparatus employing the method
US6324403B1 (en) 1998-11-05 2001-11-27 Lucent Technologies, Inc. Dynamic reduction of telephone call congestion
DE69933654T2 (de) * 1999-01-16 2007-08-23 Koninklijke Philips Electronics N.V. Funkkommunikationssystem
US6346576B1 (en) * 1999-01-19 2002-02-12 Mitsui Chemicals Inc Ethylene resin packaging films
AU773603B2 (en) * 1999-01-25 2004-05-27 Warsaw Orthopedic, Inc. Instrument and method for creating an intervertebral space for receiving an implant
US6198910B1 (en) * 1999-04-28 2001-03-06 Nortel Networks Limited Cellular network having improved method for managing RF channels
DE69926737T2 (de) * 1999-06-18 2006-06-08 Alcatel Verfahren zur Abwärtsrichtungsleistungssteuerung und Zellulares Netzwerk welches dieses Verfahren
US6694148B1 (en) * 1999-07-26 2004-02-17 Telefonaktiebolaget Lm Ericsson (Publ) Transmit power control for MCPA-equipped based stations
US6529494B1 (en) * 1999-09-21 2003-03-04 Telefonaktiebolaget Lm Ericsson (Publ) Downlink timeslot power control in a time division multiple access system
US6868075B1 (en) 1999-09-28 2005-03-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for compressed mode communications over a radio interface
WO2001063839A2 (en) * 2000-02-23 2001-08-30 Tantivy Communications, Inc. Access probe acknowledgment with collision detection
JP3844934B2 (ja) * 2000-03-03 2006-11-15 株式会社日立コミュニケーションテクノロジー 基地局装置、移動通信システム及び送信電力制御方法
GB2360909B (en) 2000-03-31 2004-03-03 Motorola Inc A packet scheduler and method
SE517030C2 (sv) 2000-06-06 2002-04-02 Ericsson Telefon Ab L M Metod och anordning för val av modulerings- och kodningsregler i ett radiokommunikationssystem
TW520587B (en) 2001-01-13 2003-02-11 Koninkl Philips Electronics Nv Radio communication system
US6781969B2 (en) * 2001-02-08 2004-08-24 Motorola, Inc. Preemptive power-up method for protecting system users from sudden high speed data
US6542581B2 (en) * 2001-02-09 2003-04-01 Vdsl Systems Method for controlling the transmission power in a digital subscriber line
US6850500B2 (en) * 2001-05-15 2005-02-01 Interdigital Technology Corporation Transmission power level estimation
US7158563B2 (en) * 2001-06-01 2007-01-02 The Board Of Trustees Of The Leland Stanford Junior University Dynamic digital communication system control
US6983166B2 (en) * 2001-08-20 2006-01-03 Qualcomm, Incorporated Power control for a channel with multiple formats in a communication system
AU2002311553A1 (en) * 2002-06-26 2004-01-19 Nokia Corporation Method and network element for optimisation of radio resource utilisation in a radio access network
US7107014B2 (en) * 2002-10-24 2006-09-12 Nokia Corporation Transporting power control information
AU2002340984A1 (en) * 2002-11-07 2004-06-07 Nokia Corporation Data transmission method involving estimation of cell power increase in the current and neighbouring cells due to a capacity request
WO2004049588A1 (en) * 2002-11-26 2004-06-10 Interdigital Technology Corporation Bias error compensated initial transmission power control for data services
US7299402B2 (en) * 2003-02-14 2007-11-20 Telefonaktiebolaget Lm Ericsson (Publ) Power control for reverse packet data channel in CDMA systems
US7110771B2 (en) * 2003-04-17 2006-09-19 Interdigital Technology Corporation Method for implementing fast-dynamic channel allocation call admission control for radio link reconfiguration in radio resource management
KR20050068723A (ko) 2003-12-30 2005-07-05 엘지전자 주식회사 기지국의 다운링크 파워 조절 방법

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AR046365A1 (es) 2005-12-07
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EP1687912A2 (en) 2006-08-09
WO2005048030A2 (en) 2005-05-26
KR100752567B1 (ko) 2007-08-29
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