JP5711284B2 - Umts信号についての最大電力低減を算出する装置および方法 - Google Patents
Umts信号についての最大電力低減を算出する装置および方法 Download PDFInfo
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- JP5711284B2 JP5711284B2 JP2013024890A JP2013024890A JP5711284B2 JP 5711284 B2 JP5711284 B2 JP 5711284B2 JP 2013024890 A JP2013024890 A JP 2013024890A JP 2013024890 A JP2013024890 A JP 2013024890A JP 5711284 B2 JP5711284 B2 JP 5711284B2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/246—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter calculated in said terminal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Error Detection And Correction (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Transmitters (AREA)
- Control Of Amplification And Gain Control (AREA)
Description
ν0(t)=g1・νi(t)+g2・νi(t)2+g3・νi(t)3+...+gn・νi(t)n 式(1)
式中、g1・νi(t)は、増幅器の線形利得であり、残りの項(すなわち、g2・νi(t)2+g3・νi(t)3+...+gn・νi(t)n)は、非線形利得を表す。信号が変調された3GPP(third Generation Partnership Project)無線周波数(RF)を搬送する場合、相互変調歪み(inter-modulation distortion)の結果、非線形項が生成され、その結果、誤差ベクトル振幅(Error Vector Magnitude:EVM)の増加を引き起こす帯域内歪み項(in-band distortion term)、およびACLRの増加を引き起こす帯域外歪みをもたらす。両方の影響によって、変調品質の低下が引き起こされる。
βIは、I成分における物理チャネルのチャネル重み付けであり、
βQは、Q成分における物理チャネルのチャネル重み付けであり、
NIは、I成分における物理チャネルの数であり、
NQは、Q成分における物理チャネルの数である。
γjは、物理チャネルごとの実際の重み付け係数であり、
nは、加算の指数を定義する整数であり、
NOrderは、任意の多項式の次数であり、
α=(XTX)-1XTY 式(7)
式中、
Xは、信号ごとに1行を含む行列(設計またはVandermode行列として知られる)であって、1行の各要素は、二乗の、重み付けされた個々の、または成分内交差のβ項の数値である。これらはすべて、式5または式6の分子のβI項およびβQ項を特定のチャネルβ項と置き換えることによって決定され、2つまたは4つのE−DPDCHのケースでは、個々の、および二乗のβed項は各々、2行または4行ではなく、Xの1行のみを使用するものとする。
Yは、信号ごとに1つの要素を含む列ベクトルであり、その各要素は、それぞれ測定されたCMlinearまたはPARlinearである。これは、CMを推定するためのα項、またはPARを推定するためのα項を計算し、式5または式6の分母における信号の重み付け係数を掛けた場合である。あるいは、CMおよびPARの両方を推定するためのα項を計算する場合、Yは、1つはCMlinear、もう1つはPARlinearのこうした2列の行列とすることができる。
MPR_error=MPR_true-MPR_estimated 式(14)
adjustment_factor_raw=max(CM_estimated-ceil(CM_true,0.5)) 式(15)
式中、ceil(・,0.5)は、最も近い0.5に切り上げることを意味する。
adjustment_factor=max(CM_estimated-ceil(CM_true,0.5))+ε 式(16)
Claims (4)
- 無線送信/受信ユニット(WTRU)であって、
第1の最大電力低減(MPR)および第2のMPRを導出する手段であって、前記第1および第2のMPRは、前記WTRUのアップリンク送信のための変調タイプから少なくとも導出される、手段と、
ネットワークからの構成要件に基づいて前記第1または第2のMPRをさらに選択する前記手段と、
前記選択された第1または第2のMPRに応えて前記WTRUの最大出力電力をさらに変更する前記手段と、
前記変更された最大出力電力を超えない出力電力で前記アップリンク送信をさらに行う前記手段と
を備えることを特徴とするWTRU。 - 前記第2のMPRは、調整係数から少なくとも導出されることを特徴とする請求項1に記載のWTRU。
- 無線送信/受信ユニット(WTRU)によって、第1の最大電力低減(MPR)および第2のMPRを導出するステップであって、前記第1および第2のMPRは、前記WTRUのアップリンク送信のための変調タイプから少なくとも導出される、ステップと、
前記WTRUによって、ネットワークからの構成要件に基づいて前記第1または第2のMPRを選択するステップと、
前記WTRUによって、前記選択された第1または第2のMPRに応えて前記WTRUの最大出力電力を変更するステップと、
前記変更された最大出力電力を超えない出力電力で前記アップリンク送信を行うステップと
を備えることを特徴とする方法。 - 前記第2のMPRは、調整係数から少なくとも導出されることを特徴とする請求項3に記載の方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US91294707P | 2007-04-20 | 2007-04-20 | |
US60/912,947 | 2007-04-20 | ||
US2728108P | 2008-02-08 | 2008-02-08 | |
US61/027,281 | 2008-02-08 |
Related Parent Applications (1)
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---|---|---|---|
JP2010504119A Division JP2010525664A (ja) | 2007-04-20 | 2008-04-19 | Umts信号についての最大電力低減を算出する装置および方法 |
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JP2014121760A Division JP2014207695A (ja) | 2007-04-20 | 2014-06-12 | Umts信号についての最大電力低減を算出する装置および方法 |
Publications (2)
Publication Number | Publication Date |
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JP2013141274A JP2013141274A (ja) | 2013-07-18 |
JP5711284B2 true JP5711284B2 (ja) | 2015-04-30 |
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ID=39876131
Family Applications (3)
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JP2010504119A Ceased JP2010525664A (ja) | 2007-04-20 | 2008-04-19 | Umts信号についての最大電力低減を算出する装置および方法 |
JP2013024890A Active JP5711284B2 (ja) | 2007-04-20 | 2013-02-12 | Umts信号についての最大電力低減を算出する装置および方法 |
JP2014121760A Pending JP2014207695A (ja) | 2007-04-20 | 2014-06-12 | Umts信号についての最大電力低減を算出する装置および方法 |
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JP2010504119A Ceased JP2010525664A (ja) | 2007-04-20 | 2008-04-19 | Umts信号についての最大電力低減を算出する装置および方法 |
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JP2014121760A Pending JP2014207695A (ja) | 2007-04-20 | 2014-06-12 | Umts信号についての最大電力低減を算出する装置および方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20080305824A1 (ja) |
EP (3) | EP2487806A3 (ja) |
JP (3) | JP2010525664A (ja) |
KR (5) | KR20140111055A (ja) |
CN (2) | CN102932893A (ja) |
AT (1) | ATE511720T1 (ja) |
WO (1) | WO2008130693A2 (ja) |
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US20080305824A1 (en) * | 2007-04-20 | 2008-12-11 | Interdigital Technology Corporation | Apparatus and method for computing maximum power reduction for a umts signal |
KR101105690B1 (ko) * | 2008-03-03 | 2012-01-17 | 닛본 덴끼 가부시끼가이샤 | 무선 기지국 및 송신 전력 결정 방법 |
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-
2008
- 2008-04-18 US US12/106,246 patent/US20080305824A1/en not_active Abandoned
- 2008-04-19 WO PCT/US2008/005121 patent/WO2008130693A2/en active Application Filing
- 2008-04-19 EP EP20120164158 patent/EP2487806A3/en not_active Withdrawn
- 2008-04-19 JP JP2010504119A patent/JP2010525664A/ja not_active Ceased
- 2008-04-19 AT AT08743142T patent/ATE511720T1/de not_active IP Right Cessation
- 2008-04-19 CN CN2012103806557A patent/CN102932893A/zh active Pending
- 2008-04-19 CN CN2008800128332A patent/CN101669295B/zh active Active
- 2008-04-19 KR KR1020147024053A patent/KR20140111055A/ko active IP Right Grant
- 2008-04-19 KR KR1020107000449A patent/KR101500471B1/ko active IP Right Grant
- 2008-04-19 EP EP08743142A patent/EP2140571B9/en active Active
- 2008-04-19 KR KR1020147003545A patent/KR101537914B1/ko not_active IP Right Cessation
- 2008-04-19 EP EP20110168111 patent/EP2372924A3/en not_active Withdrawn
- 2008-04-19 KR KR1020097024228A patent/KR101121676B1/ko not_active IP Right Cessation
- 2008-04-19 KR KR1020137019306A patent/KR101538565B1/ko not_active IP Right Cessation
-
2013
- 2013-02-12 JP JP2013024890A patent/JP5711284B2/ja active Active
- 2013-09-11 US US14/024,136 patent/US20140011494A1/en not_active Abandoned
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2014
- 2014-06-12 JP JP2014121760A patent/JP2014207695A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN101669295A (zh) | 2010-03-10 |
WO2008130693A2 (en) | 2008-10-30 |
EP2487806A3 (en) | 2013-08-21 |
EP2372924A2 (en) | 2011-10-05 |
US20140011494A1 (en) | 2014-01-09 |
KR20100018058A (ko) | 2010-02-16 |
EP2140571A2 (en) | 2010-01-06 |
KR101500471B1 (ko) | 2015-03-16 |
ATE511720T1 (de) | 2011-06-15 |
KR20100002288A (ko) | 2010-01-06 |
JP2014207695A (ja) | 2014-10-30 |
KR20140111055A (ko) | 2014-09-17 |
WO2008130693A3 (en) | 2009-02-12 |
KR101537914B1 (ko) | 2015-07-17 |
KR101538565B1 (ko) | 2015-07-22 |
EP2140571B9 (en) | 2012-01-04 |
EP2372924A3 (en) | 2013-08-28 |
EP2487806A2 (en) | 2012-08-15 |
US20080305824A1 (en) | 2008-12-11 |
KR20130091782A (ko) | 2013-08-19 |
KR101121676B1 (ko) | 2012-06-01 |
CN102932893A (zh) | 2013-02-13 |
JP2010525664A (ja) | 2010-07-22 |
EP2140571B1 (en) | 2011-06-01 |
JP2013141274A (ja) | 2013-07-18 |
CN101669295B (zh) | 2013-03-06 |
KR20140023452A (ko) | 2014-02-26 |
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