WO2004059873A1 - A control solution for transmission power of mobile handset - Google Patents
A control solution for transmission power of mobile handset Download PDFInfo
- Publication number
- WO2004059873A1 WO2004059873A1 PCT/IB2003/006174 IB0306174W WO2004059873A1 WO 2004059873 A1 WO2004059873 A1 WO 2004059873A1 IB 0306174 W IB0306174 W IB 0306174W WO 2004059873 A1 WO2004059873 A1 WO 2004059873A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- power
- unit
- sampling
- transmit
- Prior art date
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
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
-
- 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
Definitions
- the present invention relates to a wireless telecommunication system in TDD
- SIR Signal-to-lnterference Ratio
- Gain calibration is the general means to compensate for unintentional gain
- gain fluctuations can be caused for various reasons when
- signals are transmitted, such as aging of components, changes in ambient
- Another object of the present invention is to provide an apparatus and its
- the third object of the invention is to provide an apparatus and its method
- a transceiver for receiving and transmitting radio frequency(RF) signals
- a front end unit for selecting a receiver mode or a transmitter mode according
- a baseband processing unit for providing the said control signal to the said baseband
- Fig. 1 illustrates the structure of a current multi-band, multi-mode transceiver.
- Fig. 2 provides the structure of the multi-band, multi-mode transceiver
- TD-SCDMA is a telecommunication system based on TDD mode, so the
- TD-SCDMA as an example.
- transceiver in the present invention additionally has a sampling unit, as coupling
- TPTCL transmitter power tracking and controlling loop
- invention consists of a transceiver, as antenna 1, a front-end unit 6, and a
- the said front-end unit 6 consists of a switch unit 2, a coupling unit 3, a
- the said baseband processing unit 16 consists of a transmitting baseband
- TPTCL signal generating module 22 TPTCL signal generating module 22.
- switch unit 2 is composed of transmitter/receiver mode selection
- TPTCL signal generating module 22 consists of
- the transceiver works as follows:
- transmitter/receiver mode selection switch 20 in switch unit 2 switches antenna 1 to be connected with receiving module 5, RF signals received from antenna 1 will be
- the transceiver in the present invention When the transceiver in the present invention is in receiver mode, it works the
- the transceiver When the transceiver is in the mode to transmit wireless signals, the transceiver is in the mode to transmit wireless signals, the
- transmitter/receiver mode selection switch 20 in switch unit 2 switches antenna 1 to
- processing unit 16 is transmitted from antenna 1 by transmit/receive mode
- receiving baseband processing unit 8 is transformed to signal in digital domain
- the actual output power can be calculated
- the error signal can be used to obtain a power comparison signal in
- the power compensation signal in analog form will be obtained, such as a TPTCL signal, which can be used to control the AGC (automatic gain control)
- modulated, amplified and filtered by transmitting module 4 will be transmitted via
- the sampling value of the actual transmitter power can be obtained by
- a sampling module mainly composed of coupling unit 3 and switch unit 2, the
- the power compensation signal can be
- module mainly composed of adding unit 13 and transmitter power control unit 12.
- the present invention relates to an apparatus and its method thereof for
- TPC signal provided by transmitting
- baseband processing unit 7 is also utilized, so the apparatus and its method
- receiving module 5 when TPTCL signal is generated, receiving module 5 and
- receiving baseband processing unit 8 are utilized to process the coupling signal, so
- TDD mode TD-SCDMA may not be limited to TDD mode TD-SCDMA system, but also applicable for
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004563491A JP2006512828A (ja) | 2002-12-27 | 2003-12-23 | モバイルハンドセットの送信電力のための制御手法 |
EP03780473A EP1579594A1 (en) | 2002-12-27 | 2003-12-23 | A control solution for transmission power of mobile handset |
AU2003288631A AU2003288631A1 (en) | 2002-12-27 | 2003-12-23 | A control solution for transmission power of mobile handset |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02158992.5 | 2002-12-27 | ||
CNA021589925A CN1512801A (zh) | 2002-12-27 | 2002-12-27 | 具有控制发射功率的移动终端及其方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004059873A1 true WO2004059873A1 (en) | 2004-07-15 |
Family
ID=32661091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/006174 WO2004059873A1 (en) | 2002-12-27 | 2003-12-23 | A control solution for transmission power of mobile handset |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1579594A1 (zh) |
JP (1) | JP2006512828A (zh) |
KR (1) | KR20050095594A (zh) |
CN (1) | CN1512801A (zh) |
AU (1) | AU2003288631A1 (zh) |
TW (1) | TW200520425A (zh) |
WO (1) | WO2004059873A1 (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102202022A (zh) * | 2011-03-31 | 2011-09-28 | 京信通信系统(中国)有限公司 | 一种dpd系统中保护功放的方法及装置 |
CN103490790A (zh) * | 2013-09-04 | 2014-01-01 | 乐鑫信息科技(上海)有限公司 | 支持IEEE802.11ac和IEEE802.11n标准的低功耗优化接收方法及系统 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4654648B2 (ja) * | 2004-10-06 | 2011-03-23 | 株式会社ケンウッド | 無線通信機の送信出力調整装置およびその方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0645899A2 (en) * | 1993-09-24 | 1995-03-29 | Hitachi, Ltd. | Mobile communication apparatus with linear power control over wide dynamic range |
US6236840B1 (en) * | 1996-12-11 | 2001-05-22 | Matsushita Electric Industrial Co., Ltd. | Transmission output detecting circuit |
-
2002
- 2002-12-27 CN CNA021589925A patent/CN1512801A/zh active Pending
-
2003
- 2003-12-05 TW TW092134439A patent/TW200520425A/zh unknown
- 2003-12-23 WO PCT/IB2003/006174 patent/WO2004059873A1/en not_active Application Discontinuation
- 2003-12-23 JP JP2004563491A patent/JP2006512828A/ja not_active Withdrawn
- 2003-12-23 KR KR1020057011820A patent/KR20050095594A/ko not_active Application Discontinuation
- 2003-12-23 AU AU2003288631A patent/AU2003288631A1/en not_active Abandoned
- 2003-12-23 EP EP03780473A patent/EP1579594A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0645899A2 (en) * | 1993-09-24 | 1995-03-29 | Hitachi, Ltd. | Mobile communication apparatus with linear power control over wide dynamic range |
US6236840B1 (en) * | 1996-12-11 | 2001-05-22 | Matsushita Electric Industrial Co., Ltd. | Transmission output detecting circuit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102202022A (zh) * | 2011-03-31 | 2011-09-28 | 京信通信系统(中国)有限公司 | 一种dpd系统中保护功放的方法及装置 |
CN103490790A (zh) * | 2013-09-04 | 2014-01-01 | 乐鑫信息科技(上海)有限公司 | 支持IEEE802.11ac和IEEE802.11n标准的低功耗优化接收方法及系统 |
CN103490790B (zh) * | 2013-09-04 | 2015-05-20 | 乐鑫信息科技(上海)有限公司 | 支持IEEE802.11ac和IEEE802.11n标准的低功耗优化接收方法及系统 |
Also Published As
Publication number | Publication date |
---|---|
KR20050095594A (ko) | 2005-09-29 |
TW200520425A (en) | 2005-06-16 |
CN1512801A (zh) | 2004-07-14 |
JP2006512828A (ja) | 2006-04-13 |
EP1579594A1 (en) | 2005-09-28 |
AU2003288631A1 (en) | 2004-07-22 |
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