TW200529681A - 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 PDFInfo
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- TW200529681A TW200529681A TW093132243A TW93132243A TW200529681A TW 200529681 A TW200529681 A TW 200529681A TW 093132243 A TW093132243 A TW 093132243A TW 93132243 A TW93132243 A TW 93132243A TW 200529681 A TW200529681 A TW 200529681A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio 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]
- H04B7/2631—Radio 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Description
200529681 五、發明說明(1) 發明所屬之技術領域 本發明關於蜂巢式網路内之初步下鏈傳輸功率的調 整,更特定言之係關於調整非即時服務之初步下鏈傳輸功 率以增進該服務之感受品質。 先前技術 因為非即時(NRT )服務之突發性本質,用於NRT服務 之物理資源的配置也是突發而短暫的。就每一種配置來 說’初步下鏈傳輸功率之準確度對於此配置之服務的感受 =質、譬如碼塊錯誤率(BLER )相當重要。當今而言二初 =下鏈傳輸功率係由控制無線電網路控制器(C-RNC )依據 里测值之可取得性利用兩種不同架構估計。 因為諸如衰減、機動性、量測值報告延時、及錯誤等 步^下鏈傳輸功率可能顯著異於支撐信號干擾比 於實際必要貫功際產需要的功率。倘若初步下鏈傳輸功率顯著低 要SIR,- | ,在配置起始時間内的實際SIR會遠低於必 是短暫的1\曰/"成許多傳輸錯誤。由於NRT服務之配置通常 法在:暫配在配置起始時間内遭遇到的錯誤可能無 持、、只期間攤分以符合必要BLER。 發明内容 步下鏈傳輪^ —種用於蜂巢式網路調整非即時服務之初 -At增進所感受服務品質的解決方案。 、無線通#網路内之非即時服務進行初步
200529681 五、發明說明(2) 下鏈傳輸功率言周整的方法奸 鏈傳輸功率位準。然後以即時服務之一初步下 較。判斷該估計功率 f的功率位準與一閾值做比 (cells )。偏若一 *立準之—增加是否會影響相鄰胞元 調整該初步下鏈^像於增不會影響相鄰胞元,則以一預定量 硬得輸功率位準。 一種用來對_ I綠、s > , 下鏈傳輸功率調整的方=二、謂路内之非即時服務進行初步 鏈傳輸功率位準。笪;_二f估計非即時服務之一初步下 比較。以比較钍111二叶時槽载波功率且與一閾值做 比較所用間ϊ:ϊΐ礎調整該初步下鏈傳輸功率。以該 持於初步=礎,可將該初步下鏈傳輸功率加大或維 實施方式 的流ί1圖圖為;,C估計初步下鏈傳輸功率之-方法1。〇 值型演L去二旦一全,、測值型演算法或 可供予ϋ時王里測值型演异法係在有專用及公用量測值 二跳時使用,m公用量測值型演算法係在僅有公用量 之初;ΪΓΠ時使用。方法100始於由c,c估計nrt服務 功率‘聞】Ξ功率(步驟102)。以估計的初步下鏈傳輸 該較(步驟1()4) ’且倘若該估計功率高於 閾值即終止該方法(步驟1 0 6 )。 下該估計功率低於該閾值(步驟104),則判斷初步 化?=«率之—増加是否會使相鄰胞元内的服務明顯劣 V驟108)。倘若相鄰胞元内之服務會明顯劣化,則不 200529681 、發明說明(3) 做功:調整:且終止該方法(步驟ι〇6卜 相鄰 ::使:服::明顯劣化’則視在步驟1 04中遭遇之閾值 彳功率加大-特定量(步驟:)。然 後終止遺方法(步驟〗〇 6 ) 。 w 直覺上來說,在铬杜i π + 功率會增進性能。在適當地加大初步下滅傳輸 滿足下列條件之時會被=例中’初步下鏈傳輪功率僅在 ;))Γ:下NC:二之f步下鏈傳輸功率低於-特定間值。 Z)初步下鏈傳輸功率之捭 ^ ^
顯劣化(舉例來說,造成a壅二不穴使相鄰胞元内之服務明 鄰基地台叫之載波況)。此效應可藉由-相 與其相關之傳輸功率上m多個閣值。每一間值有-取決於NRT服務之必要;LER里。上增加量及料間值之值亦 誤之容差之一指標因為必要BLER係為初步傳輸錯
輸功聿3 e解决WCDMA TDD系統内之NRT服務之初步下鏈傳 ί NRT^ C-RNC
nm: Π鍵傳輸功率加上目前時槽載波功率之估 估計:掉鄱1率疋否低於一特定閾值(步驟204 )。倘若該 鏈傳钤二ί波ί率小於最小B節點載波功率,則加大初步下 上_ Ζ使得總時槽载波功率等於最小Β節點載波功率加 數,11 =MarginiC)W (步驟206 ) 。Margini⑽是一設計參 ” "1值在2-5 dB範圍内。必要BLER之值越低、
200529681 五、發明說明(4)
Margin-之值越高。妙 倘若該估計時/該方法(步驟208 )。 於-載波間值(了^皮功率大於最小β節點載波功率但小 仏主 、 〇Wn-CaPwr , 步驟204 ),則判斷相鄰胞元 之十巧矸槽載波功率e不 (步驟210)。另_選握,_;一特定閾值1'111'6%_。1'-£:心 (wtku )在此胞元之時掸可利用此無線發射/接收單元 之時槽内的干擾信號碼功率(ISCP ) &。這些閾值係由6節點之最大容許時槽载波功 率^聯合決定。最大容許時槽載波功 會=間值會越高。此外’必要醒之值越低、該 下键:Ϊ : ί ::載波功率低於Thres—,加大初步 下鏈傳輸功率使付總時槽載波功率等於下述之較大者. Γ/Λ載Λ功/加上一邊際值Margiu,或原始估計總 時槽載波功率加上一邊際值Marginoriginal (步驟212)。
Marginmedium被決定為一使得因最節點載波功率加上
Marginmedium而造成之干擾不會導致一相鄰胞元之 功率接近其最大容許值的最高邊際值。Margin 9 為一使得因在ThreS〇wn_CaPwr水準之B節點載波功’、疋
Margin〇riginal而造成之干擾不會導致一相鄰胞元之 功率接近其最大容許值的最高邊際值。然後終 # ' (步驟208 )。 …、、、、該方法 在步驟210中’倘若相鄰胞元之平均時槽戴波功
ThresNeighbQr CaPwr,則不對初步下鏈傳輸功率進行 午穴於 214 )且終止該方法(步驟208 )。倘若估外吐丁二整(步驟 叫畔糟載波功率 200529681 五、發明說明(5) 大於載波功率閾值(ThresGwn CaPwr ;步驟204 ),則不對初 下鏈傳輸功率進行調整(步驟21 4 )且終止該方法(步 208 )。 八 應理解到在方法200中使用之所有參數(亦即邊際值 閾值)與BLER直接或間接地相關。實務上來說,所有τ參% 得經由模擬或現場測試/試驗予以微調。 乂 第3圖係一用於非即時服務之初步下鏈傳輸功率調敕 一實施例的方塊簡圖。一C-RNC 30 0接收nrt資料。一媒體t 存取控制器308安排NRT資料以供傳輪。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310。 J 已排程NRT資料被送到B節點3 0 2進行實體層處理312 其格式化以供經由空氣介面306傳輸。—初步NRT傳輸功率 凋整裝置314如前所述調整初步傳輸功率位準估計值。已1 整的初步傳輸功率位準判斷被用於調整一放大器316之掸 益。已放大的NRT信號由-天線318或一天線陣列經由空曰 ;丨面306放射。WTRU 304利用其天線32〇或天 列 _ NRT信號且利用一NRT接收器322復原該肿了資 μ 雖說以就圖式和文字說明本發明之特 此技藝者可不脫離本發明之範圍做出許:修二j :彳 上說明僅為範例,不以任何方式限制本發明。艾 200529681 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 β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傳輪功率調整裝置 316 放大器 318 、3 2 0 天線 322 NRT接收器
第11頁
Claims (1)
- 200529681 六、申請專利範圍 1· 一種用來對一無線通信網路 鏈傳輸功率調整的方法,其勹 _即時服務進行初步下 估計非即時服務之一初步下步驟: 以估計的功率位準與一間值做3功率位準,· 判斷該估計功率位準之一增加H二, 劣化;以及 曰疋會使相鄰胞元内之服務 :該判斷步驟為基礎,以_預 率位準。 周整该初步下鏈傳輸功 2 · 種用來對一益線通/(古晦|放& =輪功率調整;;;方法「其包括服務進行初步下 計算!之-初步下鏈傳輸功率位準; 估计的時槽載波功率; 與一閾值做比較;以及 =…果為基礎調整該初步下鏈傳輸功率。 +σ申睛專利範圍第2項之方法,其瞀 估計初步下鏈僂# # t Λ 5 a _ ^以汁乂驟包含將該 4 ^ . r蟪傅輸功率加至一目刖時槽載波功率。 = =項=法’其中該比較步驟包含比較 5々φ :槽载波功率與一Β郎點之一最小載波功率位準。 該初:=範圍第4項之方法’其中該調整步驟包含増加 分鱼鏈傳輸功率,藉此使總載波功率等於該最小載波 力年加上一邊際值。 6該^I請專利範圍第2項之方法,其中該比較步驟包含判斷 =D時槽載波功率是否大於一B節點之一最小載波功率 準且小於—載波功率閾值。200529681 六、申請專利範園 7·如申請專利範圍第6項之 判斷相鄰胞元之一平均护万法’其中該調整步驟包含·· 及 $日裁波功率是否小於一閾值;以 S輸功1均,槽載波功率低於該間值’則增加該初步下鍵 兮=“’藉此使總载波功率等於以下二值當中較大者: δ亥最小截、、士丄 秋及功率加上一第一邊際值,及該估計時槽載波功 牛加上一给 ▲ 8如 弟二邊際值。該^計$專利範圍第2項之方法’其中該比較步驟包含比較 σ 0、槽栽波功率與一載波功率閾值。第13頁
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| Publication Number | Publication Date |
|---|---|
| TW200529681A true TW200529681A (en) | 2005-09-01 |
| TWI281830B TWI281830B (en) | 2007-05-21 |
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| TW093132243A TWI281830B (en) | 2003-11-05 | 2004-10-22 | Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel |
| TW094114800A TW200623908A (en) | 2003-11-05 | 2004-10-22 | Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel |
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| TW094114800A TW200623908A (en) | 2003-11-05 | 2004-10-22 | Initial downlink transmit power adjustment for non-real-time services using dedicated or shared channel |
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| Country | Link |
|---|---|
| US (2) | US7239885B2 (zh) |
| EP (1) | EP1687912A4 (zh) |
| JP (1) | JP2007512736A (zh) |
| KR (2) | KR20060096102A (zh) |
| CN (1) | CN1875553A (zh) |
| AR (1) | AR046365A1 (zh) |
| CA (1) | CA2544696A1 (zh) |
| MX (1) | MXPA06005009A (zh) |
| NO (1) | NO20062559L (zh) |
| TW (2) | TWI281830B (zh) |
| WO (1) | WO2005048030A2 (zh) |
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| 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 |
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| 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 |
| WO2004043102A1 (en) * | 2002-11-07 | 2004-05-21 | Nokia Corporation | Data transmission method involving estimation of cell power increase in the current and neighbouring cells due to a capacity request |
| EP2161959A1 (en) * | 2002-11-26 | 2010-03-10 | 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 |
-
2003
- 2003-12-02 US US10/725,789 patent/US7239885B2/en not_active Expired - Fee Related
-
2004
- 2004-10-21 EP EP04795847A patent/EP1687912A4/en not_active Withdrawn
- 2004-10-21 JP JP2006539529A patent/JP2007512736A/ja not_active Withdrawn
- 2004-10-21 KR KR1020067013690A patent/KR20060096102A/ko not_active Withdrawn
- 2004-10-21 CN CNA200480032627XA patent/CN1875553A/zh active Pending
- 2004-10-21 KR KR1020067010927A patent/KR100752567B1/ko not_active Expired - Fee Related
- 2004-10-21 WO PCT/US2004/034740 patent/WO2005048030A2/en not_active Ceased
- 2004-10-21 CA CA002544696A patent/CA2544696A1/en not_active Abandoned
- 2004-10-21 MX MXPA06005009A patent/MXPA06005009A/es unknown
- 2004-10-22 TW TW093132243A patent/TWI281830B/zh not_active IP Right Cessation
- 2004-10-22 TW TW094114800A patent/TW200623908A/zh unknown
- 2004-11-05 AR ARP040104066A patent/AR046365A1/es active IP Right Grant
-
2006
- 2006-06-02 NO NO20062559A patent/NO20062559L/no not_active Application Discontinuation
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2007
- 2007-05-21 US US11/804,929 patent/US20070225027A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005048030A9 (en) | 2006-07-13 |
| AR046365A1 (es) | 2005-12-07 |
| US20070225027A1 (en) | 2007-09-27 |
| CA2544696A1 (en) | 2005-05-26 |
| EP1687912A2 (en) | 2006-08-09 |
| MXPA06005009A (es) | 2006-07-06 |
| CN1875553A (zh) | 2006-12-06 |
| WO2005048030A2 (en) | 2005-05-26 |
| US20050096075A1 (en) | 2005-05-05 |
| TWI281830B (en) | 2007-05-21 |
| WO2005048030A3 (en) | 2005-11-17 |
| KR20060096102A (ko) | 2006-09-05 |
| JP2007512736A (ja) | 2007-05-17 |
| EP1687912A4 (en) | 2006-12-27 |
| KR100752567B1 (ko) | 2007-08-29 |
| NO20062559L (no) | 2006-08-02 |
| TW200623908A (en) | 2006-07-01 |
| KR20060096507A (ko) | 2006-09-11 |
| US7239885B2 (en) | 2007-07-03 |
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