KR960039670A - Viterbi decoding method using specified status - Google Patents

Viterbi decoding method using specified status Download PDF

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Publication number
KR960039670A
KR960039670A KR1019950008818A KR19950008818A KR960039670A KR 960039670 A KR960039670 A KR 960039670A KR 1019950008818 A KR1019950008818 A KR 1019950008818A KR 19950008818 A KR19950008818 A KR 19950008818A KR 960039670 A KR960039670 A KR 960039670A
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KR
South Korea
Prior art keywords
state value
initial
value
data
decoding method
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KR1019950008818A
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Korean (ko)
Inventor
남일현
이준동
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김광호
삼성전자 주식회사
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Priority to KR1019950008818A priority Critical patent/KR960039670A/en
Publication of KR960039670A publication Critical patent/KR960039670A/en

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Abstract

1. 청구범위에 기재된 발명이 속한 기술분야1. TECHNICAL FIELD OF THE INVENTION

시분할다중접속방식 통신시스템에서 전송데이타를 비터비 디코더를 이용하여 디코딩하는 방법에 관한 것이다.The present invention relates to a method for decoding transmission data using a Viterbi decoder in a time division multiple access communication system.

2. 발명이 해결하려고 하는 기술적 과제2. The technical problem to be solved by the invention

데이타 디코딩시 시작점뿐만 아니라 마지막점도 알수 있는 상태에서 데이타를 복원하는 비터비 디코딩 방법을 구현한다.Implement the Viterbi decoding method that restores data in a state where the start point and the end point are known at the time of data decoding.

3. 발명의 해결방법의 요지3. Summary of Solution to Invention

초기가드비트, 미드앰블신호 종료가드비트 및 초기가드비트와 미드앰블신호의 사이에 위치하고 미드앰블신호와 종료가드비트의 사이에 위치하는 트래픽데이타로 구조되는 타임슬롯을 단위로 전송되는 데이타를 디코딩하는 본 발명에 따른 비터비 디코딩 방법은, 초기가드비트값과 등일한 미리 지정된 초기상태값과 각 타임슬롯내에 구조되는 미드앰블신호의 종료값을 이용하고, 미드앰블린호의 초기값과 종료가드비트값과 동일한 미리 지정된 종료상태값을 이용하여 타임슬롯내의 트래픽데이타를 순차적으로 디코딩하는 것을 특징으로 한다.Decoding data transmitted in units of time slots constructed with an initial guard bit, a midamble signal end guard bit, and a traffic data located between the initial guard bit and the midamble signal and located between the midamble signal and the end guard bit. The Viterbi decoding method according to the present invention uses a predetermined initial state value equal to the initial guard bit value and the end value of the midamble signal structured in each time slot, and the initial value and end guard bit value of the midamble signal. The traffic data in the timeslot is sequentially decoded using a predetermined end state value equal to.

4. 발명의 중요한 용도4. Important uses of the invention

시분할다중접속방식 통신시스템의 수신기Receiver of Time Division Multiple Access Communication System

Description

지정 상태값을 이용한 비터비 디코딩 방법Viterbi decoding method using specified status

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 본 발명에 따른 비터비 디코더의 블럭구성도.3 is a block diagram of a Viterbi decoder according to the present invention.

Claims (5)

초기상태값, 동기신호, 종료상태값 및 정보세이타로 구조되는 타임슬롯을 단위로 전송되는 데이타를 디코딩하는 비터비 디코딩 방법에 있어서, 상기 초기상태값과 동일한 미리 지정된 초기상태값과 각 타임슬롯내에 구조되는 동기신호의 종료값을 이용하여 타임슬롯내의 일부 정보 데이타를 순차적으로 디코딩하는 제1디코딩과정과, 각 타임슬롯내에 구조되는 동기신호의 초기값과 상기 종료상태값과 동일한 미리 지정된 종료상태값을 이용하여 타임슬롯내의 상기 디코딩된 정보데이타 이외의 데이타를 순차적으로 디코딩하는 제2디코딩과정으로 구성함을 특징으로 하는 비터비 디코딩 방법.A Viterbi decoding method for decoding data transmitted in units of an initial state value, a synchronization signal, an end state value, and a time slot structured by an information setter, the Viterbi decoding method comprising: a predetermined initial state value equal to the initial state value and within each time slot; A first decoding process of sequentially decoding some information data in the time slots by using the end value of the rescued synchronization signal; and a predetermined end state value equal to the initial value and the end state value of the synchronization signal structured in each time slot; And a second decoding process of sequentially decoding data other than the decoded information data in the timeslot by using. 제1항에 있어서, 상기 제1디코딩과정에서 디코딩되는 정보데이타는 각 타임슬롯내 초기상태값과 동기신호의 초기값 사이에 위치하는 데이타임을 특징으로 하는 비터비 디코딩 방법.The Viterbi decoding method according to claim 1, wherein the information data decoded in the first decoding process is data located between an initial state value in each time slot and an initial value of a synchronization signal. 제1항에 있어서, 상기 제2디코딩 과정에서 디코딩되는 정보데이타는 각 타임슬롯내 동기신호의 종료값과 종료상태값 사이에 위치하는 데이타임을 특징으로 하는 비터비 디코딩 방법.The Viterbi decoding method of claim 1, wherein the information data decoded in the second decoding process is data located between an end value and an end state value of a synchronization signal in each time slot. 제1항에 있어서, 상기 지정된 초기상태값 및 상기 지정된 종료상태값이 3비트임을 특징으로 하는 비터비 디코딩 방법.The Viterbi decoding method according to claim 1, wherein the designated initial state value and the designated end state value are 3 bits. 제4항에 있어서, 상기 지정된 초기상태값이 상기 지정된 종료상태값과 동일한 것을 특징으로 하는 비터비 디코딩 방법.5. The Viterbi decoding method according to claim 4, wherein the designated initial state value is the same as the designated end state value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950008818A 1995-04-14 1995-04-14 Viterbi decoding method using specified status KR960039670A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100526564B1 (en) * 1999-04-23 2005-11-04 삼성전자주식회사 Apparatus for setting up a initial state metric in a viterbi decoder
KR100742341B1 (en) * 2000-11-10 2007-07-25 삼성전자주식회사 Aparatus and method for decoding data having unknown frame length

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100526564B1 (en) * 1999-04-23 2005-11-04 삼성전자주식회사 Apparatus for setting up a initial state metric in a viterbi decoder
KR100742341B1 (en) * 2000-11-10 2007-07-25 삼성전자주식회사 Aparatus and method for decoding data having unknown frame length

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