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KR920702119A - How to determine the sampling time point - Google Patents

How to determine the sampling time point

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Publication number
KR920702119A
KR920702119A KR1019910700725A KR910700725A KR920702119A KR 920702119 A KR920702119 A KR 920702119A KR 1019910700725 A KR1019910700725 A KR 1019910700725A KR 910700725 A KR910700725 A KR 910700725A KR 920702119 A KR920702119 A KR 920702119A
Authority
KR
South Korea
Prior art keywords
sampling time
time point
max
sampling
value
Prior art date
Application number
KR1019910700725A
Other languages
Korean (ko)
Other versions
KR970007612B1 (en
Inventor
구스타브 라로썬 라르스
Original Assignee
에케 스타브링, 타게 뢰브그렌
테레포오낙티이에보라겟 엘 엠 엘리크썬
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 에케 스타브링, 타게 뢰브그렌, 테레포오낙티이에보라겟 엘 엠 엘리크썬 filed Critical 에케 스타브링, 타게 뢰브그렌
Publication of KR920702119A publication Critical patent/KR920702119A/en
Application granted granted Critical
Publication of KR970007612B1 publication Critical patent/KR970007612B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

내용 없음No content

Description

샘플링 시간점을 결정하는 방법How to determine the sampling time point

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이동 전화시스템의 부분을 예시한 블록도, 제2도는 정보의 시분할 전송의 타임 슬롯의 예시도, 제3도는 시분할 한 타임슬롯에 전송한 문자순서의 예시도.1 is a block diagram illustrating a portion of a mobile telephone system, FIG. 2 is an illustration of time slots for time division transmission of information, and FIG.

Claims (5)

회구동기화 순서를 갖는 문자순서를 전송할 때 샘플링 시간점을 결정하는 방법에 있어서, 문자순서는 아날로그신호로 채널에 전송되어 전송중 외란을 받기 쉬운것에 있어서, -문자의 전송시간 간격 즉 문자시간은 전체수의 신호샘플링 시간점을 포함하는데 있어서, 전송기와 수신기에 공통인 동기화 시간점에 대해 선택된 회귀샘플링 시간점에서 수신된 아날로그신호를 샘플링 하는 단계와, -알려진 동기화 순서와 샘플되어 수신된 신호의 도움으로 채널의 임펄스 응답을 계산하는 채널보정을 수행하는 단계를 포함하는 상기 방법은 하나의 동기화 순서(SY1)에 대해 하나이상의 채널추정을 얻도록 채널임펄스 응답을 샘플링 하는 것에 있어서, 각각의 채널추정에 대한 샘플링은 하나의 문자시간(Ts)의 거리에 의해 서로가 공간을 둔 바람직한 수의 시간점에서 수행되고 상기 바람직한 수의 문자샘플링 시간점은 신호 샘플링 시간점(n)의 하나에서 출발점을 갖고 -하나 이상의 신호샘플링 시간점에서 임펄스 응답에너지에 상응하는 하나이상의 비교값(Eke(n), E't(n))을 계산하고 -비교값의 최대값(E'ke(n), E't(n), Etmax)를 선택하고, -선택된 비교값(E'ke(n), E't(n), Etmax)에 상응하는 하나의 신호샘플링 시간점(nmax)을 선택하는 단계를 더 포함하는 것을 특징으로 하는 샘플링 시간점 결정방법.In the method of determining the sampling time point when transmitting a character sequence having a resynchronization sequence, the character sequence is transmitted to the channel as an analog signal and is susceptible to disturbance during transmission. Sampling a received analog signal at a regression sampling time point selected for a synchronization time point common to the transmitter and receiver, comprising:-a known synchronization order and the aid of the sampled received signal; The method comprising performing a channel correction to calculate an impulse response of the channel with the step of sampling the channel impulse response to obtain one or more channel estimates for one synchronization sequence (SY1), Sampling for the desired number of time points spaced from each other by the distance of one character time (Ts) And the preferred number of character sampling time points has a starting point at one of the signal sampling time points (n) -one or more comparison values (E ke (n), corresponding to the impulse response energy at one or more signal sampling time points, '- (ke (n - E ' calculates the t (n)) and compare the maximum value of the value (E a, ke (n), E compares the selected value E) select t (n), E t max), and, , E 't (n), E t max) a signal sampling time point (n method determines a sampling time point, characterized in that it further comprises the step of selecting max) corresponding to. 제1항에 있어서, E't(n)각각의 채널추정에 대한 바람직한 문자샘플링 시간점에서 임펄스 응답의 전체 에너지에 상응하는 것에 있어서, 비교값(E'ke(n))에 상응하는 신호샘플링 시간점(n)은 채널추정의 제1문자샘플링 시간점과 같은 것을 특징으로 하는 샘플링 시간점 결정방법.The signal sampling corresponding to the comparison value E ' ke (n) according to claim 1, wherein E' t (n) corresponds to the total energy of the impulse response at the desired character sampling time point for each channel estimate. The time point (n) is equal to the first character sampling time point of the channel estimation method. 제1항에 있어서, 하나의 비교값(E'ke(n))은 전체 임펄스응답이 최대크기(C2 max(n))인 하나의 신호크기 신호점에서 임펄스 응답에 상응하는 것에 있어서, 상기 신호 샘플링 시간점은 비교값에 상응하는 하는 신호 샘플링 시간점(n)인 것을 특징으로 하는 샘플링 시간점 결정방법.The method according to claim 1, wherein one comparison value E ' ke (n) corresponds to an impulse response at one signal size signal point at which the total impulse response is a maximum magnitude C 2 max (n). And a sampling time point (n) corresponding to the comparison value. 제1항, 제2항 또는 제3항에 있어서, -후행하는 수신된 동기화순서(SY1, SY2)에 대해 샘플링 시간점(ntmax)을 선택하는 단계, 추정된 샘플링 시간점(nest(j)을 얻기 위해 연속적으로 선택된 샘플링 시간점(nmax)으로 부터 연속적으로 평균값을 형성하는 단계 더 포함하는 것을 특징으로 하는 시간점 결정방법.4. The method of claim 1, 2 or 3, further comprising:-selecting a sampling time point n t max for the following received synchronization sequence SY1, SY2, the estimated sampling time point n est ( j) continuously forming an average value from continuously selected sampling time points n max to obtain j). 제4항에 있어서, 처음에 선택된(nmax)를 갖는 최초의 입력 동기화순서(j)에 대해 가중함수(B)의 도움으로 평균 값을 형성하는 것에 있어서, 최고비교값(Emax)이 한계치(0)이하일때 가중함수가 제로(zero)값을 취하는 것을 특징으로 하는 샘플링 시간점 결정방법.5. The method according to claim 4, wherein in forming an average value with the aid of weighting function (B) for the first input synchronization sequence (j) with initially selected (n max ), the highest comparison value (E max ) is the limit value. A sampling time point determining method, characterized in that the weighting function takes a zero value when (0) or less. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910700725A 1989-11-15 1990-10-26 Determination of Sampling Timepoints KR970007612B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE8903842A SE465005B (en) 1989-11-15 1989-11-15 PROCEDURE TO DETERMINE SAMPLE TIME
SE8903842-6 1989-11-15
PCT/SE1990/000697 WO1991007831A1 (en) 1989-11-15 1990-10-26 A method of determining sampling time points

Publications (2)

Publication Number Publication Date
KR920702119A true KR920702119A (en) 1992-08-12
KR970007612B1 KR970007612B1 (en) 1997-05-13

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Application Number Title Priority Date Filing Date
KR1019910700725A KR970007612B1 (en) 1989-11-15 1990-10-26 Determination of Sampling Timepoints

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JP (1) JP2994748B2 (en)
KR (1) KR970007612B1 (en)
AU (1) AU628238B2 (en)
CA (1) CA2044599C (en)
NZ (1) NZ235749A (en)
SE (1) SE465005B (en)
WO (1) WO1991007831A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69332237T2 (en) * 1992-06-18 2003-04-17 Oki Electric Industry Co., Ltd. DEVICE AND METHOD FOR MAXIMUM LIKELY IMPACT ASSESSMENT
US5465412A (en) * 1993-05-19 1995-11-07 Motorola, Inc. Apparatus and method for determining a point in time for detecting a sampled signal in a receiver
US5365549A (en) * 1993-05-24 1994-11-15 Motorola, Inc. Complex signal correlator and method therefor
FR2726711B1 (en) * 1994-11-07 1996-12-20 Alcatel Telspace METHOD OF DETECTION OF REFERENCE SYMBOLS FOR RECEIVERS OF DIGITAL DATA
CA2259647A1 (en) * 1996-06-28 1998-01-08 Harris Corporation Improvements in or relating to a method and apparatus for determining symbol timing in a wireless communications system, also using a reusable control channel, and reducing power
US6023477A (en) * 1996-12-18 2000-02-08 Ericsson Inc. System and method of time and frequency synchronization in a radiocommunication system
FR2773029B1 (en) * 1997-12-23 2000-02-04 Telecommunications Sa METHOD FOR SYNCHRONIZING A RECEIVER ON PACKET TRANSMITTED DIGITAL DATA
US6453156B1 (en) 1998-09-24 2002-09-17 Ericsson Inc. Scanning radio receiver for a wireless communication system
DE60030932T2 (en) * 1999-10-20 2007-06-21 Koninklijke Philips Electronics N.V. Search for the optimal sampling time in a TDMA packet transmission system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823382A (en) * 1986-10-01 1989-04-18 Racal Data Communications Inc. Echo canceller with dynamically positioned adaptive filter taps
US4768208A (en) * 1987-03-09 1988-08-30 Motorola, Inc. Mid-symbol sampling timing estimator

Also Published As

Publication number Publication date
WO1991007831A1 (en) 1991-05-30
JPH04503143A (en) 1992-06-04
AU628238B2 (en) 1992-09-10
AU6741590A (en) 1991-06-13
KR970007612B1 (en) 1997-05-13
SE8903842D0 (en) 1989-11-15
CA2044599C (en) 2001-01-09
JP2994748B2 (en) 1999-12-27
SE465005B (en) 1991-07-08
NZ235749A (en) 1993-01-27
CA2044599A1 (en) 1991-05-16
SE8903842L (en) 1991-05-16

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