WO2005083908A1 - 送信電力制御方法および装置 - Google Patents
送信電力制御方法および装置 Download PDFInfo
- Publication number
- WO2005083908A1 WO2005083908A1 PCT/JP2005/002967 JP2005002967W WO2005083908A1 WO 2005083908 A1 WO2005083908 A1 WO 2005083908A1 JP 2005002967 W JP2005002967 W JP 2005002967W WO 2005083908 A1 WO2005083908 A1 WO 2005083908A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- transmission power
- transmission
- gain
- output
- signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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]
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
- H04W52/286—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission during data packet transmission, e.g. high speed packet access [HSPA]
-
- 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
-
- 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
- H04W52/36—Transmission power control [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. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/08—Closed loop power control
-
- 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]
- H04W52/06—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. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/06—TPC algorithms
- H04W52/16—Deriving transmission power values from another channel
-
- 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]
- H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
Definitions
- the present invention relates to a transmission power control method and apparatus for controlling a maximum transmission power when a plurality of signals are multiplexed and transmitted by a mobile station in a wireless communication system.
- the reduction amount when there is no transmission data is made larger than the reduction amount when there is no transmission data. Further, the smaller the ratio of the third gain factor to the second gain factor, the smaller the amount of reduction of the maximum transmission power.
- the present invention instead of performing fixed clipping uniformly from the requested transmission power, clipping is performed in a plurality of stages according to the magnitude of the requested transmission power.
- the first, second, and third gain factors for weighting the signals of the first, second, and third transmission channels include an output power of the baseband transmission signal.
- the values of the first, second, and third gain factors are converted so as to normalize the values.
- the present invention also provides a transmission power control device that performs each of the above transmission power control methods.
- a situation is subdivided based on the presence or absence of transmission data, a gain factor, etc., and an appropriate maximum transmission power is set for each subdivided situation.
- the maximum transmission power reduction amount can be adjusted according to the situation without deteriorating the adjacent channel leakage power ratio. It can be as small as possible. Therefore, it is possible to broaden the service coverage while effectively preventing the adjacent channel leakage power ratio from deteriorating.
- baseband transmission is performed in a plurality of stages according to the required transmission power.
- clipping the transmission signal it is possible to prevent adjacent channel leakage power cost from deteriorating without reducing the maximum transmission power when code-multiplexing additional control information into data and main control information. it can.
- FIG. 1 is a block diagram showing a schematic configuration of an uplink link system for realizing HSDPA in an embodiment of the present invention.
- Figure 2 shows the relationship between the reduction in the maximum transmit power of the power amplifier (the amount of back-off) required to satisfy the ACLR specification when HS—DPCCH is added, and / 3c, / 3d, and Ahs. It is the graph shown.
- FIG. 3 is a flowchart illustrating a first process for determining a reduction amount of the maximum transmission power in the embodiment of the present invention.
- FIG. 6 is a diagram showing a data table showing a relationship between control values relating to gain factors / 3c and ⁇ d and a ratio of the two gain factors according to the embodiment of the present invention.
- FIG. 10 is a diagram showing the frame configuration of the uplink link DPCH. BEST MODE FOR CARRYING OUT THE INVENTION
- This control information includes a pilot bit, a transmission power control command (TPC), feedback information (FBI), and a transmission format combination identifier (TFCI: Transport Bit), which are known patterns used for channel estimation in synchronous detection. Format Combinat in Indicator).
- the FBI includes information transmitted from a terminal to a base station for controlling various diversity.
- the TFCI is information indicating how many transport channels are multiplexed in the uplink DPDCH reception frame, and which transport format each transport channel uses.
- the HS-DPCCH Dedicated Physical Control Channel for HS-DSCH
- the HS-DPCCH Dedicated Physical Control Channel for HS-DSCH
- the modulated signal is power-amplified by a power amplifier (PA) 39 via an automatic gain control circuit (AGC) 37, and transmitted wirelessly via an antenna (not shown).
- the control unit 10 which is the main control means, includes, for example, a central processing unit (CPU) and a DSP (Digital Signal Processor).
- the control unit 10 controls each part of the system using the control program and data stored in the memory 11. I do.
- control section 10 controls the maximum transmission power of power amplifier 39 by controlling control signal 38 to be given to AGC 37 in particular.
- the information shown in FIGS. 6 and 7 is stored in a nonvolatile manner in a memory in each mobile device as a data table.
- the reduction amount can be divided into a reduction amount of 1.0 dB and 0.5 dB.
- a branch is added in steps smaller than 0.5 dB step, or a branch based on another ⁇ c and 3d combination graph is added. It is also possible.
- the clipping level is set to X if it is smaller than Pmax-1 dB in S201.
- the clipping level is set to Y in S202 and if it is smaller than PmaxdB, the clipping level is set to Y. If the required transmission power P is PmaX, the clipping level is set to Z.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/555,045 US7324828B2 (en) | 2004-03-01 | 2005-02-17 | Transmission power control method and device |
| EP05710618.9A EP1617575B1 (en) | 2004-03-01 | 2005-02-17 | Transmission power control method and device |
| AU2005217841A AU2005217841B2 (en) | 2004-03-01 | 2005-02-17 | Transmission power control method and device |
| KR1020057020658A KR101082716B1 (ko) | 2004-03-01 | 2005-02-17 | 송신 전력 제어 방법 및 장치 |
| BRPI0504294A BRPI0504294A8 (pt) | 2004-03-01 | 2005-02-17 | Método e aparelho de controle de potência elétrica de transmissão |
| CN2005800001855A CN1771677B (zh) | 2004-03-01 | 2005-02-17 | 发送功率的控制方法和装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-056630 | 2004-03-01 | ||
| JP2004056630A JP4222957B2 (ja) | 2004-03-01 | 2004-03-01 | 送信電力制御方法および装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005083908A1 true WO2005083908A1 (ja) | 2005-09-09 |
Family
ID=34908929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/002967 Ceased WO2005083908A1 (ja) | 2004-03-01 | 2005-02-17 | 送信電力制御方法および装置 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7324828B2 (https=) |
| EP (4) | EP2605425A3 (https=) |
| JP (1) | JP4222957B2 (https=) |
| KR (1) | KR101082716B1 (https=) |
| CN (1) | CN1771677B (https=) |
| AU (1) | AU2005217841B2 (https=) |
| BR (1) | BRPI0504294A8 (https=) |
| WO (1) | WO2005083908A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8699957B2 (en) * | 2005-10-12 | 2014-04-15 | Samsung Electronics Co., Ltd. | Transmission/reception apparatus and method for channel estimation using packet data control channel in FDMA communication and system using the same |
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| MXPA06003071A (es) | 2003-09-26 | 2006-05-31 | Interdigital Tech Corp | Determinacion de factores de ganancia para la potencia de transmision inalambrica. |
| JP4222957B2 (ja) * | 2004-03-01 | 2009-02-12 | ソニー・エリクソン・モバイルコミュニケーションズ株式会社 | 送信電力制御方法および装置 |
| FR2869496B1 (fr) * | 2004-04-26 | 2006-08-11 | Nortel Networks Ltd | Procede de controle de puissance d'emission sur des canaux de communication et station de base pour la mise en oeuvre du procede |
| CN101068134A (zh) * | 2004-06-16 | 2007-11-07 | 三菱电机株式会社 | 通信装置 |
| CA2535189C (en) | 2005-02-04 | 2011-04-12 | Samsung Electronics Co., Ltd. | Method and apparatus for setting gain factors for dedicated physical channels in a mobile telecommunications system |
| US8965440B2 (en) * | 2005-05-31 | 2015-02-24 | Alcatel Lucent | Method of estimating a current channel condition in a wireless communications network |
| US7636582B2 (en) * | 2005-09-30 | 2009-12-22 | Alcatel-Lucent Usa Inc. | Providing power control in a reverse link of a wireless spread-spectrum data network for bursty traffic |
| KR101315478B1 (ko) * | 2005-12-08 | 2013-10-07 | 한국전자통신연구원 | 단말기 및 그 송신 전력 제어 방법 |
| JP4760904B2 (ja) * | 2006-02-17 | 2011-08-31 | 日本電気株式会社 | 帯域制限方法及び無線通信システム |
| CN101401330B (zh) * | 2006-03-15 | 2012-03-21 | 日本电气株式会社 | 移动台、控制信号发送功率的装置及方法 |
| JPWO2007108097A1 (ja) * | 2006-03-20 | 2009-07-30 | 三菱電機株式会社 | 移動局、固定局及び無線通信システム |
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| JP5312734B2 (ja) * | 2006-09-20 | 2013-10-09 | 富士通株式会社 | 移動通信端末 |
| AU2007305370B2 (en) * | 2006-10-02 | 2011-05-26 | Interdigital Patent Holdings, Inc. | Method and apparatus for encoding channel quality indicator and precoding control information bits |
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| ES2366666T3 (es) * | 2006-12-27 | 2011-10-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Determinación de un nivel de reducción de potencia para un transmisor. |
| JP5088513B2 (ja) * | 2007-02-21 | 2012-12-05 | 日本電気株式会社 | 通信端末装置、tfc選択方法及びプログラム |
| MX2009010279A (es) * | 2007-03-30 | 2009-10-13 | Ntt Docomo Inc | Sistema movil de comunicaciones, aparato de estacion base, aparato de usuario y metodo. |
| US20080305824A1 (en) * | 2007-04-20 | 2008-12-11 | Interdigital Technology Corporation | Apparatus and method for computing maximum power reduction for a umts signal |
| US8687676B2 (en) | 2007-07-30 | 2014-04-01 | Telefonaktiebolaget L M Ericsson (Publ) | Efficient storing of backoff and crestcomp values |
| CN101925165B (zh) * | 2007-08-15 | 2015-05-06 | 华为技术有限公司 | 上行物理信道的功率控制方法及装置 |
| JP4867850B2 (ja) * | 2007-08-17 | 2012-02-01 | 株式会社村田製作所 | 送信電力制御方法および送信電力制御装置 |
| JP5250326B2 (ja) * | 2007-09-26 | 2013-07-31 | 京セラ株式会社 | 無線通信装置および送信制御方法 |
| JP4941261B2 (ja) * | 2007-12-04 | 2012-05-30 | 富士通株式会社 | 歪補償増幅装置および歪補償方法 |
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| GB0811333D0 (en) * | 2008-06-19 | 2008-07-30 | Icera Inc | Estimating signal characteristics |
| WO2010073290A1 (en) * | 2008-12-22 | 2010-07-01 | Nec Corporation | Communication system, user equipment, base station, transmit power deciding method, and program |
| EP2381585A4 (en) * | 2008-12-25 | 2015-11-25 | Fujitsu Ltd | SIGNAL GENERATION DEVICE, TRANSMISSION DEVICE, SIGNAL PRODUCTION METHOD, TRANSMISSION METHOD AND COMMUNICATION SYSTEM |
| KR101677313B1 (ko) | 2009-09-30 | 2016-11-17 | 인터디지탈 패튼 홀딩스, 인크 | 상향링크에서 다중 안테나 전송을 위한 방법 및 장치 |
| KR101458390B1 (ko) * | 2010-05-12 | 2014-11-05 | 한국전자통신연구원 | 통신 시스템에서 데이터 송수신 장치 및 방법 |
| US9014130B2 (en) | 2011-10-27 | 2015-04-21 | Lg Electronics Inc. | Method and apparatus for transmitting control information through uplink |
| CN103748933B (zh) | 2012-08-17 | 2018-09-07 | 华为终端(东莞)有限公司 | 一种降低无线终端设备功耗的方法和无线终端 |
| CN105993198B (zh) * | 2015-01-16 | 2019-07-12 | 华为技术有限公司 | 用户设备发射功率的控制方法及装置 |
| EP3883305A4 (en) | 2018-11-15 | 2022-06-29 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for receiving analog signal |
| CN112256159B (zh) * | 2020-11-16 | 2024-06-14 | 童宗伟 | 一种电容式压力触控装置及方法 |
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-
2004
- 2004-03-01 JP JP2004056630A patent/JP4222957B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-17 EP EP20130159407 patent/EP2605425A3/en not_active Withdrawn
- 2005-02-17 EP EP05710618.9A patent/EP1617575B1/en not_active Ceased
- 2005-02-17 AU AU2005217841A patent/AU2005217841B2/en not_active Ceased
- 2005-02-17 WO PCT/JP2005/002967 patent/WO2005083908A1/ja not_active Ceased
- 2005-02-17 KR KR1020057020658A patent/KR101082716B1/ko not_active Expired - Fee Related
- 2005-02-17 EP EP20130159518 patent/EP2605426A3/en not_active Withdrawn
- 2005-02-17 US US10/555,045 patent/US7324828B2/en not_active Expired - Lifetime
- 2005-02-17 BR BRPI0504294A patent/BRPI0504294A8/pt not_active Application Discontinuation
- 2005-02-17 EP EP15151249.8A patent/EP2887565B1/en not_active Expired - Lifetime
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| See also references of EP1617575A4 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8699957B2 (en) * | 2005-10-12 | 2014-04-15 | Samsung Electronics Co., Ltd. | Transmission/reception apparatus and method for channel estimation using packet data control channel in FDMA communication and system using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4222957B2 (ja) | 2009-02-12 |
| EP2605425A2 (en) | 2013-06-19 |
| US20060217088A1 (en) | 2006-09-28 |
| EP1617575A4 (en) | 2012-01-11 |
| BRPI0504294A8 (pt) | 2018-05-02 |
| EP1617575B1 (en) | 2017-12-13 |
| EP2605426A2 (en) | 2013-06-19 |
| EP2887565A1 (en) | 2015-06-24 |
| CN1771677A (zh) | 2006-05-10 |
| AU2005217841B2 (en) | 2008-10-02 |
| US7324828B2 (en) | 2008-01-29 |
| JP2005252388A (ja) | 2005-09-15 |
| EP2605426A3 (en) | 2014-07-16 |
| EP1617575A1 (en) | 2006-01-18 |
| KR101082716B1 (ko) | 2011-11-15 |
| BRPI0504294A (pt) | 2006-10-24 |
| EP2605425A3 (en) | 2014-07-16 |
| EP2887565B1 (en) | 2017-12-06 |
| AU2005217841A1 (en) | 2005-09-09 |
| KR20060119712A (ko) | 2006-11-24 |
| CN1771677B (zh) | 2010-05-26 |
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