KR0174779B1 - 통신 시스템에서의 전력 평가 방법 및 장치 - Google Patents
통신 시스템에서의 전력 평가 방법 및 장치Info
- Publication number
- KR0174779B1 KR0174779B1 KR1019950701948A KR19950701948A KR0174779B1 KR 0174779 B1 KR0174779 B1 KR 0174779B1 KR 1019950701948 A KR1019950701948 A KR 1019950701948A KR 19950701948 A KR19950701948 A KR 19950701948A KR 0174779 B1 KR0174779 B1 KR 0174779B1
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- power
- stream
- data
- sample
- 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.)
- Expired - Lifetime
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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- 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
- H04B17/327—Received signal code power [RSCP]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Transceivers (AREA)
Abstract
Description
Claims (10)
- 신호 전력 평가기를 포함하는 장치에 있어서, 상기 신호 전력 평가기는 (a) 기준 샘플의 스트림 및 데이타 샘플의 스트림으로 이루어진 그룹으로부터 선택된 샘플 스트림을 유도하기 위해 수신된 통신 신호를 복조하기 위한 복조 수단, 및 (b) 상기 복조 수단에 동작적으로 접속되어 있고, 샘플 스트림의 함수로서 상기 수신된 통신 신호의 전력의 복소 신호 전력 평가값을 상기 샘플 스트림의 함수로서 발생하기 위한 평가 수단을 포함하는 장치.
- 제1항에 있어서, 상기 평가 수단은 기지의(known) 기준 순차를 상기 기준 샘플의 스트림과 상관시킴으로서 상기 기준 샘플의 스트림으로부터 다수의 복소 신호 전력 평가값을 발생시키기 위한 수단을 포함하는 것을 특징으로 하는 장치.
- 제2항에 있어서, 상기 평가 수단은 평균 복소 기준 신호 전력 평가값을 형성하기 위해 상기 다수의 복소 신호 전력 평가값을 함께 평균시키기 위한 평균 수단을 더 포함하는 장치.
- 제3항에 있어서, 상기 평가 수단은 상기 평균 복소 기준 신호 전력 평가값의 크기를 계산함으로써 기준에 기초한 신호 전력 평가값(reference-based signal power estimate)을 발생시키기 위한 수단을 더 포함하는 장치.
- 제1항에 있어서, 상기 평가 수단은 상기 데이타 샘플의 스트림을 복소 제곱함으로써 상기 데이타 샘플의 스트림으로부터 다수의 복소 제곱된 데이타 샘플을 발생시키기 위한 수단을 포함하는 장치.
- 제5항에 있어서, 상기 평가 수단은 평균 복소 제곱된 데이타 샘플을 형성하기 위해 상기 다수의 복소 제곱된 데이타 샘플을 평균시키기 위한 평균 수단을 더 포함하는 장치.
- 제6항에 있어서, 상기 평가 수단은 상기 평균 복소 제곱된 데이타 샘플의 크기를 계산함으로써 데이타에 기초한 신호 전력 평가값을 발생시키기 위한 수단을 더 포함하는 것을 특징으로 하는 장치.
- (a) 통신 채널을 통해 수신된 신호 내에서 전력 제어 표시자를 검출하기 위한 신호 수신 수단-상기 전력 제어 표시자는 샘플 기초 신호 전력 평가값과 선정된 임계값 사이의 비교 결과로부터 유도되며, 상기 샘플 기초 신호 전력 평가값은 기준 샘플의 스트림과 데이타 샘플의 스트림으로 이루어진 그룹으로부터 선택된 샘플 스트림의 함수로서 디스프레드 통신 신호의 전력의 복소 신호 전력 평가값의 크기로부터 유도됨 및 (b) 상기 신호 수신 수단에 동작적으로 접속되어 있고, 상기 검출된 전력 제어 표시자에 응답하여 신호 송신기의 특정한 신호 송신 전력을 조정하기 위한 전력 조정 수단을 포함하는 통신 유닛.
- 제8항에 있어서, 상기 신호 수신 수단은 상기 전력 제어 표시자를 검출하기 위해 상기 수신된 신호를 스프레딩 코드로 디스프레딩하기 위한 수단을 포함하는 통신 유닛.
- 신호 전력을 평가하는 방법에 있어서, (a) 기준 샘플의 스트림과 데이타 샘플의 스트림으로 이루어진 그룹으로부터 선택된 샘플 스트림을 유도하기 위해 수신된 통신 신호를 복조하는 단계, 및 (b) 상기 샘플 스트림의 함수로서 상기 수신된 통신 신호의 전력의 복소 신호 전력 평가값을 발생시키는 단계를 포함하는 신호 전력 평가 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US8/123,452 | 1993-09-17 | ||
US08/123452 | 1993-09-17 | ||
US08/123,452 US5412686A (en) | 1993-09-17 | 1993-09-17 | Method and apparatus for power estimation in a communication system |
PCT/US1994/008472 WO1995008224A1 (en) | 1993-09-17 | 1994-07-25 | Method and apparatus for power estimation in a communication system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950704869A KR950704869A (ko) | 1995-11-20 |
KR0174779B1 true KR0174779B1 (ko) | 1999-04-01 |
Family
ID=22408772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950701948A Expired - Lifetime KR0174779B1 (ko) | 1993-09-17 | 1994-07-25 | 통신 시스템에서의 전력 평가 방법 및 장치 |
Country Status (9)
Country | Link |
---|---|
US (1) | US5412686A (ko) |
EP (1) | EP0670090A4 (ko) |
JP (1) | JP3700728B2 (ko) |
KR (1) | KR0174779B1 (ko) |
CN (1) | CN1080959C (ko) |
FI (1) | FI952404A7 (ko) |
MY (1) | MY130207A (ko) |
TW (1) | TW251400B (ko) |
WO (1) | WO1995008224A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100759302B1 (ko) * | 2004-01-08 | 2007-09-18 | 인터디지탈 테크날러지 코포레이션 | 무선 근거리 통신망에서의 채널 통신여부 평가 최적화 |
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-
1993
- 1993-09-17 US US08/123,452 patent/US5412686A/en not_active Expired - Lifetime
-
1994
- 1994-07-25 WO PCT/US1994/008472 patent/WO1995008224A1/en not_active Application Discontinuation
- 1994-07-25 JP JP50915895A patent/JP3700728B2/ja not_active Expired - Fee Related
- 1994-07-25 KR KR1019950701948A patent/KR0174779B1/ko not_active Expired - Lifetime
- 1994-07-25 EP EP94924500A patent/EP0670090A4/en not_active Ceased
- 1994-07-25 CN CN94190695A patent/CN1080959C/zh not_active Expired - Fee Related
- 1994-07-25 FI FI952404A patent/FI952404A7/fi unknown
- 1994-08-05 TW TW083107202A patent/TW251400B/zh active
- 1994-08-08 MY MYPI94002057A patent/MY130207A/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100759302B1 (ko) * | 2004-01-08 | 2007-09-18 | 인터디지탈 테크날러지 코포레이션 | 무선 근거리 통신망에서의 채널 통신여부 평가 최적화 |
US7443821B2 (en) | 2004-01-08 | 2008-10-28 | Interdigital Technology Corporation | Method for clear channel assessment optimization in a wireless local area network |
Also Published As
Publication number | Publication date |
---|---|
MY130207A (en) | 2007-06-29 |
WO1995008224A1 (en) | 1995-03-23 |
JPH08503355A (ja) | 1996-04-09 |
FI952404A0 (fi) | 1995-05-17 |
EP0670090A4 (en) | 1998-05-06 |
CN1114521A (zh) | 1996-01-03 |
FI952404A7 (fi) | 1995-05-17 |
CN1080959C (zh) | 2002-03-13 |
US5412686A (en) | 1995-05-02 |
JP3700728B2 (ja) | 2005-09-28 |
EP0670090A1 (en) | 1995-09-06 |
KR950704869A (ko) | 1995-11-20 |
TW251400B (ko) | 1995-07-11 |
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