KR960703291A - 코드분할 다중 억세스 시스템에서 고속 순방향 링크 전력제어방법 (communication process in a radio telephone system) - Google Patents
코드분할 다중 억세스 시스템에서 고속 순방향 링크 전력제어방법 (communication process in a radio telephone system) Download PDFInfo
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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
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0059—Convolutional codes
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
- H04L1/0019—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy in which mode-switching is based on a statistical approach
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0046—Code rate detection or code type detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0067—Rate matching
- H04L1/0068—Rate matching by puncturing
- H04L1/0069—Puncturing patterns
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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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
- H04W52/20—TPC being performed according to specific parameters using error rate
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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
- H04W52/26—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service]
- H04W52/267—TPC being performed according to specific parameters using transmission rate or quality of service QoS [Quality of Service] taking into account the information rate
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Probability & Statistics with Applications (AREA)
- Theoretical Computer Science (AREA)
- Artificial Intelligence (AREA)
- Mobile Radio Communication Systems (AREA)
- Communication Control (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Selective Calling Equipment (AREA)
- Vehicle Body Suspensions (AREA)
- Error Detection And Correction (AREA)
- Radio Relay Systems (AREA)
- Telephone Function (AREA)
- Time-Division Multiplex Systems (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
본 발명은 전력제어 처리는 이동 무선전화기의 요구된 전력출력으로 기지국을 갱신하는 것이다. 기지국은 특정 비율에서 이동국에 프레임을 전송한다. 만일 이동국이 프레임을 바르게 수신 복호한다면, 이동국은 기지국에서 전송되는 다음 프레임으로 전력제어 비트를 세트한다. 수신된 전력제어 비트의 오류율에 기초를 두면, 기지국은 전송전력이 증가 또는 감소되는 지를 결정한다.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 CDMA 무선전화 시스템에 사용된 본 발명의 이동국 무선처리에 대한 블럭도,
제5도는 본 발명의 순방향 링크 전력제어 처리에 대한 흐름도.
Claims (7)
- 가변 데이타율 통신링크를 제공하기 위한 방법에 있어서, 다수의 데이타 심벌을 각각 포함하는 다수의 제1중첩 부호화 신호를 만들기 위해 입력 데이타신호를 중첩 부호화하는 단계; 반복 데이타 심벌을 포함하는 다수의 제2중첩 부호화신호를 만들기 위해 소정의 횟수로 각각의 데이타 심벌을 반복하는 단계; 데이타 시퀀스를 만들기 위해 다수의 제2중첩 부호화 신호를 다중화 하는 단계; 및 데이타 시퀀스의 소정위치에서 데이타 심벌이 제거되도록 데이타 시퀀스의 구두점을 표시하는 단계를 포함하는 것을 특징으로 하는, 가변 데이타율 통신링크 제공방법.
- 제1항에 있어서, 데이타 시퀀스가 모든 6n+3 및 6n+5 데이타 심벌 구두점을 표시하는 것을 특징으로 하는 가변 데이타율 통신링크 제공방법.
- 제1항에 있어서, 중첩 인코딩이 1/2비율로 실행되는 것을 특징으로 하는 가변 데이타율 통신링크 제공방법.
- 제1항에 있어서, 각각의 제거된 심벌에 널(null) 범위를 지정하는 단계를 더 포함하는 것을 특징으로 하는 가변 데이타율 제공방법.
- 코드분할 다중 억세스 통신시스템에서 순방향 및 역방향 통신링크를 통해 기지국과 통신할 수 있는 무선전화기에서 동작하는 중첩 인코더에서 일정 데이타율 출력을 유지하는 동안 가변 비율에서 중첩 인코더에 입력 데이타신호를 입력시키기 위한 방법에 있어서, 입력 데이타신호를 1/2비율로 중첩 부호화 하며 다수의 데이타 심벌을 포함하는 두개의 부호화 출력신호를 만드는 단계; 각각의 부호화 출력신호에서 각각의 데이타신호를 반복하는 단계; 제1데이타 시퀀스를 형성하기 위해 각각의 부호화 출력신호의 반복데이타심벌을 다중화하는 단계; 데이타 시퀀스의 6n+3 및 6n+5을 모두 제거하며, 여기서 n이 0 내지 ∞의 범위에서 정수이며, 구두점 표시 데이타 시퀀스를 만드는 단계: 구두점 표시 데이타 시퀀스를 변조하는 단계; 순방향 통신링크를 통해 구두점 표시 데이타 시퀀스를 전송하는 단계; 구두점 표시 데이타 시퀀스를 기지국이 수신하는 단계; 수신된 데이타 시퀀스를 변조하는 단계; 재2데이타 시퀀스를 만들기 위해 변조된 데이타 시퀀스에 널 행렬 6n+3 및 6n+5데이타 심벌을 삽입하는 단계: 제2데이타 시퀀스를 복호화하는 단계, 복호 및 제2데이타 시퀀스를 아날로그에서 디지털로 변환하는 단계를 포함하는 것을 특징으로 하는 중첩 인코더에 입력 데이타신호를 입력시키기 위한 방법.
- 제5항에 있어서, 입력 데이타신호가 14.4kbps의 데이타율을 가지며 출력신호가 19.2kbps의 데이타율을 가지는 것을 특징으로 하는 중첩 인코더에 입력 데이타신호를 입력시키기 위한 방법.
- 제1통신장치가 적어도 하나의 데이타율에서 순방향 통신채널을 통해 전송하며, 제2통신장치가 역방향 통신채널을 통해 전송하는, 제2통신채널에 의해 제1통신 장치의 전력을 제어하기 위한 방법에 있어서, 제1통신장치가 순방향 통신채널에 다수의 프레임을 전송하며, 다수의 프레임의 제1프레임이 적어도 하나의 데이타율의 제1데이타율로 전송되는 단계; 제2통신장치가 다수의 프레임을 복호화하는 단계: 제2통신장치가 다수의 복호 프레임의 각각의 복호 프레임에 대한 복호화에 응하여 제1통신장치에 피드백을 제공하는 단계; 피드백에 응하여 적어도 하나의 데이타율의 각각의 데이타율에 대한 오류율을 결정하는 단계; 만일 오류율이 소정 문턱값보다 크다면, 제1소정 레벨로 제1통신 장치의 전력을 조절하는 단계; 및 만일 오류율이 소정 문턱값과 같다면, 제2소정 레벨로 제1통신장치의 전력을 조절하는 단계; 만일 오류율이 소정 문턱값보다 작다면, 제3소정 레벨로 제1통신장치의 전력을 조절하는 단계를 포함하는 것을 특징으로 하는 제2통신채널에 의해 제1통신장치의 전력을 제어하기 위한 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US08/156,125 | 1993-11-22 | ||
US08/156,125 US5383219A (en) | 1993-11-22 | 1993-11-22 | Fast forward link power control in a code division multiple access system |
PCT/US1994/013595 WO1995015038A2 (en) | 1993-11-22 | 1994-11-22 | Communication method in a radio telephone system |
Publications (2)
Publication Number | Publication Date |
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KR960703291A true KR960703291A (ko) | 1996-06-19 |
KR100337968B1 KR100337968B1 (ko) | 2002-10-09 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019950703047A KR100337968B1 (ko) | 1993-11-22 | 1994-11-22 | 코드분할다중접속시스템에서의고속순방향링크전력제어방법 |
Country Status (21)
Country | Link |
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US (2) | US5383219A (ko) |
EP (5) | EP2017971B1 (ko) |
JP (1) | JP3177626B2 (ko) |
KR (1) | KR100337968B1 (ko) |
CN (1) | CN1065995C (ko) |
AT (5) | ATE343875T1 (ko) |
AU (1) | AU678874B2 (ko) |
BR (1) | BR9405789A (ko) |
CA (1) | CA2153700C (ko) |
DE (5) | DE69434876T2 (ko) |
DK (3) | DK1492262T3 (ko) |
ES (5) | ES2281590T3 (ko) |
FI (4) | FI112833B (ko) |
HK (4) | HK1015192A1 (ko) |
IL (2) | IL121886A (ko) |
PT (3) | PT1381171E (ko) |
RU (1) | RU2128397C1 (ko) |
SI (1) | SI0680675T1 (ko) |
TW (1) | TW328192B (ko) |
WO (1) | WO1995015038A2 (ko) |
ZA (1) | ZA948424B (ko) |
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US5383219A (en) * | 1993-11-22 | 1995-01-17 | Qualcomm Incorporated | Fast forward link power control in a code division multiple access system |
US5491718A (en) * | 1994-01-05 | 1996-02-13 | Nokia Mobile Phones Ltd. | CDMA radiotelephone having optimized slotted mode and long code operation |
FI94579C (fi) * | 1994-01-12 | 1995-09-25 | Nokia Mobile Phones Ltd | Tiedonsiirtomenetelmä |
RU2129737C1 (ru) * | 1994-02-17 | 1999-04-27 | Моторола, Инк. | Способ группового кодирования сигналов и устройство для осуществления способа |
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CA2145566C (en) * | 1994-04-29 | 1999-12-28 | Nambirajan Seshadri | Methods of and devices for enhancing communications that use spread spectrum technology |
JP2980156B2 (ja) * | 1994-05-12 | 1999-11-22 | エヌ・ティ・ティ移動通信網株式会社 | 送信電力制御方法および該制御方法を用いたスペクトル拡散通信装置 |
US5603096A (en) * | 1994-07-11 | 1997-02-11 | Qualcomm Incorporated | Reverse link, closed loop power control in a code division multiple access system |
US5987014A (en) * | 1994-07-14 | 1999-11-16 | Stanford Telecommunications, Inc. | Multipath resistant, orthogonal code-division multiple access system |
US5648982A (en) | 1994-09-09 | 1997-07-15 | Omnipoint Corporation | Spread spectrum transmitter |
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