KR20030043995A - 시분할 듀플렉스 수신기에 대한 자동 이득 제어 - Google Patents
시분할 듀플렉스 수신기에 대한 자동 이득 제어 Download PDFInfo
- Publication number
- KR20030043995A KR20030043995A KR10-2003-7005044A KR20037005044A KR20030043995A KR 20030043995 A KR20030043995 A KR 20030043995A KR 20037005044 A KR20037005044 A KR 20037005044A KR 20030043995 A KR20030043995 A KR 20030043995A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- preamble
- time slot
- agc
- tdd
- Prior art date
Links
- 238000004891 communication Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 16
- 230000010363 phase shift Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 206010013496 Disturbance in attention Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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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]
- H04W52/52—Transmission power control [TPC] using AGC [Automatic Gain Control] circuits or amplifiers
-
- 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
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
- H03G3/3078—Circuits generating control signals for digitally modulated signals
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging
- H03M1/181—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values
- H03M1/183—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter
- H03M1/185—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging in feedback mode, i.e. by determining the range to be selected from one or more previous digital output values the feedback signal controlling the gain of an amplifier or attenuator preceding the analogue/digital converter the determination of the range being based on more than one digital output value, e.g. on a running average, a power estimation or the rate of change
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
- H04L5/1484—Two-way operation using the same type of signal, i.e. duplex using time-sharing operating bytewise
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Theoretical Computer Science (AREA)
- Time-Division Multiplex Systems (AREA)
- Circuits Of Receivers In General (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Control Of Amplification And Gain Control (AREA)
- Bidirectional Digital Transmission (AREA)
Abstract
Description
Claims (4)
- 통신 신호가 연속적인 타임 슬롯으로 분할되고, 그 각 타임 슬롯은 섹션으로 서브분할되는 TDD 무선 통신 시스템에 있어서,타임 슬롯의 개시부에 위치하고, 2진 위상 시프트 키잉(BPSK) 포맷으로 구성되는 프리엠블과,타임 슬롯의 중앙에 위치하는 미드엠블과,한 쌍의 데이터 패킷과,상기 미드엠블과 상기 데이터 패킷 중 하나 사이에 각각 위치하는, 2개의 전송 포맷 조합 인디케이터(TFCI) 섹션과,타임 슬롯의 종결부에 위치하는 가드 피리어드를 포함하는 것인 시스템.
- 제1항에 있어서, 상기 프리엠블은 의사-랜덤이고 모든 타임 슬롯에서 동일한 시퀀스인 것인 시스템.
- 통신 신호의 각 타임 슬롯이 BPSK 프리엠블을 포함하는, TDD 통신 시스템의자동 이득 제어(AGC) 방법에 있어서,상기 신호를 추정하는 단계와,상기 신호를 소정의 전력 기준값과 비교하는 단계와,상기 비교에 기초하여 에러 신호를 계산하는 단계와,상기 통신 신호의 감쇠를 조정하는 단계를 포함하는 방법.
- 제3항에 있어서, 상기 프리엠블은 의사-랜덤이고 모든 타임 슬롯에서 동일한 시퀀스인 것인 방법.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23890700P | 2000-10-10 | 2000-10-10 | |
US60/238,907 | 2000-10-10 | ||
PCT/US2001/031612 WO2002032018A2 (en) | 2000-10-10 | 2001-10-10 | Time slot structure and automatic gain control method for a wireless communication system |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-7013864A Division KR20030096331A (ko) | 2000-10-10 | 2001-10-10 | 시분할 듀플렉스 수신기에 대한 자동 이득 제어 |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20030043995A true KR20030043995A (ko) | 2003-06-02 |
Family
ID=22899813
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-7005044A KR20030043995A (ko) | 2000-10-10 | 2001-10-10 | 시분할 듀플렉스 수신기에 대한 자동 이득 제어 |
KR10-2003-7013864A KR20030096331A (ko) | 2000-10-10 | 2001-10-10 | 시분할 듀플렉스 수신기에 대한 자동 이득 제어 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2003-7013864A KR20030096331A (ko) | 2000-10-10 | 2001-10-10 | 시분할 듀플렉스 수신기에 대한 자동 이득 제어 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20020054583A1 (ko) |
EP (1) | EP1330886A2 (ko) |
JP (1) | JP2004511954A (ko) |
KR (2) | KR20030043995A (ko) |
CN (1) | CN1475056A (ko) |
AU (1) | AU2002211585A1 (ko) |
CA (1) | CA2425464A1 (ko) |
MX (1) | MXPA03003179A (ko) |
NO (1) | NO20031590L (ko) |
WO (1) | WO2002032018A2 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100710659B1 (ko) * | 2006-01-31 | 2007-04-25 | 포스데이타 주식회사 | Tdd 방식을 사용하는 무선통신 시스템에서의자동이득제어 장치 및 방법 |
KR101122956B1 (ko) * | 2004-07-06 | 2012-03-19 | 이성섭 | 개선된 rf 중계기 |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
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GB9306444D0 (en) * | 1993-03-27 | 1993-05-19 | Pilkington Aerospace Ltd | Glass component |
GB2378328B (en) * | 2001-08-01 | 2005-07-13 | Ipwireless Inc | AGC scheme and receiver for use in a wireless communication system |
DE10138962B4 (de) * | 2001-08-08 | 2011-05-12 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren zur Erkennung von aktiven Codesequenzen |
FR2830997B1 (fr) * | 2001-10-12 | 2004-02-13 | Thomson Licensing Sa | Procede de controle de gain pour recepteur de signaux transmis par rafales et recepteur l'exploitant |
EP1315292B1 (en) * | 2001-11-21 | 2006-09-13 | Sony Deutschland GmbH | Digital controlled AGC |
US20030123415A1 (en) * | 2001-12-31 | 2003-07-03 | Bysted Tommy Kristensen | Transport format combination indicator signalling |
SG129229A1 (en) * | 2002-07-03 | 2007-02-26 | Oki Techno Ct Singapore Pte | Receiver and method for wlan burst type signals |
US7995684B2 (en) * | 2003-02-01 | 2011-08-09 | Qualcomm, Incorporated | Method and apparatus for automatic gain control of a multi-carrier signal in a communication receiver |
KR20050106594A (ko) | 2003-03-14 | 2005-11-10 | 인터디지탈 테크날러지 코포레이션 | 타임슬롯화된 데이터 전송을 위한 개선된 자동 이득 제어메카니즘 |
US6873833B2 (en) * | 2003-03-27 | 2005-03-29 | Interdigital Technology Corporation | Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system |
WO2005029722A1 (en) * | 2003-09-23 | 2005-03-31 | Koninklijke Philips Electronics N.V. | Initial synchronization for receivers |
FR2863419A1 (fr) * | 2003-12-09 | 2005-06-10 | Thales Sa | Controle automatique du gain d'un recepteur numerique pour reception de signaux a enveloppes discontinues |
US7480498B2 (en) * | 2004-09-27 | 2009-01-20 | Cisco Technology, Inc. | Receiver gain control using a pilot signal |
US7263363B2 (en) * | 2004-09-30 | 2007-08-28 | Motorola, Inc. | Method for mitigating intermodulation interference using channel power estimation and attenuation in a two-way radio communications system |
CN100341250C (zh) * | 2004-12-24 | 2007-10-03 | 中兴通讯股份有限公司 | 一种自动增益控制方法 |
TWI318510B (en) | 2006-07-17 | 2009-12-11 | Realtek Semiconductor Corp | Apparatus and method for automatic gain control |
CN101179290B (zh) * | 2006-11-09 | 2012-05-23 | 电信科学技术研究院 | 时分-同步码分多址系统中无线帧的传输方法 |
KR100897414B1 (ko) * | 2006-12-04 | 2009-05-14 | 한국전자통신연구원 | 프리앰블과 헤더 데이터 구간에서 수행하는 자동 이득 제어장치 및 방법 |
CN101431318B (zh) * | 2007-11-06 | 2011-02-09 | 瑞昱半导体股份有限公司 | 自动增益控制装置及其控制方法 |
CN101227212B (zh) * | 2008-01-17 | 2012-11-07 | 北京北方烽火科技有限公司 | 一种单天线td-scdma发射链路中的增益补偿系统 |
CN103369664B (zh) * | 2009-12-07 | 2017-07-04 | 高通股份有限公司 | 在td‑scdma上行链路同步中提高同步移位命令传输效率的方法和装置 |
CN102780553A (zh) * | 2011-05-10 | 2012-11-14 | 北京联拓恒芯科技发展有限公司 | 一种发送同步码序列和进行同步的方法、系统及设备 |
FR3015722B1 (fr) * | 2013-12-20 | 2017-02-24 | Thales Sa | Procede de generation de symboles pour le controle automatique de gain d'un signal a emettre |
KR102190358B1 (ko) * | 2014-12-10 | 2020-12-11 | 삼성전자주식회사 | 통신 시스템에서 이득 제어를 위한 방법 및 장치 |
GB2547459B (en) * | 2016-02-19 | 2019-01-09 | Imagination Tech Ltd | Dynamic gain controller |
EP3753104B1 (en) | 2018-02-13 | 2023-04-05 | Hitachi Energy Switzerland AG | Automatic gain control in a wireless communication network for power grid control |
CN117081687B (zh) * | 2023-10-10 | 2023-12-15 | 四川思凌科微电子有限公司 | 一种rssi数据采样方法 |
Family Cites Families (8)
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FR2576472B1 (fr) * | 1985-01-22 | 1988-02-12 | Alcatel Thomson Faisceaux | Procede et dispositif de commande automatique de gain d'un recepteur en acces multiple a repartition temporelle |
US5301364A (en) * | 1988-11-30 | 1994-04-05 | Motorola, Inc. | Method and apparatus for digital automatic gain control in a receiver |
US5936949A (en) * | 1996-09-05 | 1999-08-10 | Netro Corporation | Wireless ATM metropolitan area network |
JP4020458B2 (ja) * | 1997-06-19 | 2007-12-12 | 三菱電機株式会社 | 無線通信システム、データ送信機及びデータ受信機 |
IT1295863B1 (it) * | 1997-10-22 | 1999-05-28 | Telital Spa | Metodo e apparato di trasmissione e ricezione di segnali digitali e stima dei canali di comunicazione |
US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
CN1298580A (zh) * | 1998-02-27 | 2001-06-06 | 西门子公司 | 具有无线的基于码分多址和时分多址通信的归属通信系统的空气接口 |
US6252865B1 (en) * | 1998-10-02 | 2001-06-26 | Qualcomm, Inc. | Methods and apparatuses for fast power control of signals transmitted on a multiple access channel |
-
2001
- 2001-10-10 EP EP01979649A patent/EP1330886A2/en not_active Withdrawn
- 2001-10-10 WO PCT/US2001/031612 patent/WO2002032018A2/en not_active Application Discontinuation
- 2001-10-10 JP JP2002535296A patent/JP2004511954A/ja active Pending
- 2001-10-10 AU AU2002211585A patent/AU2002211585A1/en not_active Abandoned
- 2001-10-10 CN CNA018191096A patent/CN1475056A/zh active Pending
- 2001-10-10 KR KR10-2003-7005044A patent/KR20030043995A/ko not_active Application Discontinuation
- 2001-10-10 US US09/974,273 patent/US20020054583A1/en not_active Abandoned
- 2001-10-10 MX MXPA03003179A patent/MXPA03003179A/es unknown
- 2001-10-10 CA CA002425464A patent/CA2425464A1/en not_active Abandoned
- 2001-10-10 KR KR10-2003-7013864A patent/KR20030096331A/ko not_active Application Discontinuation
-
2003
- 2003-04-08 NO NO20031590A patent/NO20031590L/no not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101122956B1 (ko) * | 2004-07-06 | 2012-03-19 | 이성섭 | 개선된 rf 중계기 |
KR100710659B1 (ko) * | 2006-01-31 | 2007-04-25 | 포스데이타 주식회사 | Tdd 방식을 사용하는 무선통신 시스템에서의자동이득제어 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
WO2002032018A2 (en) | 2002-04-18 |
AU2002211585A1 (en) | 2002-04-22 |
US20020054583A1 (en) | 2002-05-09 |
JP2004511954A (ja) | 2004-04-15 |
NO20031590L (no) | 2003-05-27 |
WO2002032018A3 (en) | 2002-08-29 |
KR20030096331A (ko) | 2003-12-24 |
CA2425464A1 (en) | 2002-04-18 |
NO20031590D0 (no) | 2003-04-08 |
EP1330886A2 (en) | 2003-07-30 |
MXPA03003179A (es) | 2004-05-05 |
CN1475056A (zh) | 2004-02-11 |
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