JPH11506597A - ワイヤレス通信システムにおける符号化速度の決定方法および装置 - Google Patents
ワイヤレス通信システムにおける符号化速度の決定方法および装置Info
- Publication number
- JPH11506597A JPH11506597A JP9535241A JP53524197A JPH11506597A JP H11506597 A JPH11506597 A JP H11506597A JP 9535241 A JP9535241 A JP 9535241A JP 53524197 A JP53524197 A JP 53524197A JP H11506597 A JPH11506597 A JP H11506597A
- Authority
- JP
- Japan
- Prior art keywords
- rate
- encoding
- receiver
- speed
- coding
- 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.)
- Granted
Links
Classifications
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/208—Arrangements for detecting or preventing errors in the information received using signal quality detector involving signal re-encoding
-
- 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
-
- 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
-
- 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
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0262—Arrangements for detecting the data rate of an incoming signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates
- H04B2201/70705—Rate detection
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.ワイヤレス通信システムで用いられる受信機において符号化速度を決定す る方法であって、前記受信機は複数の符号化速度の1つにおいて符号化されるユ ーザ情報を含む通信資源に応答し、当該方法は: 前記複数の符号化速度における符号化の確率を示すパラメータを生成する段階 ; 前記パラメータを所定の方法で合成して、検出統計値を作成する段階;および 前記検出統計値に基づいて前記符号化速度を決定する段階; によって構成されることを特徴とする方法。 2.前記複数の符号化速度における符号化の前記確率を表す前記パラメータが 、巡回冗長検査(CRC)情報,符号誤差速度(SER)情報および品質ビット (QB)情報によって構成される請求項1記載の方法。 3.前記パラメータを所定の方法で合成して、検出統計値を作成する前記段階 が、前記パラメータを一次判別関数により合成して検出統計値を作成する段階に よってさらに構成される請求項1記載の方法。 4.前記検出統計値が2つの可能な符号化速度を表す請求項1記載の方法。 5.前記一次判別関数が: によって定義され、iとjは前記2つの可能な符号化速度である請求項4記載 の方法。 6.ワイヤレス通信システム内で送信されるユーザ情報の符号化速度を決定す る受信機であって、前記受信機は複数の符号化速度の1つで符号化される前記ユ ーザ情報を含む通信資源に応答し、当該受信機は: 前記通信資源を受信および復調して、被復調ユーザ情報を作成する受信機フロ ント・エンド; 前記受信機フロント・エンドに結合され、前記復調されたユーザ情報をデコー ドし、前記複数の符号化速度における符号化の確率を表すパラメータを生成する デコーダ;および 前記デコーダに結合され、前記パラメータを所定の方法で合成して検出統計値 を作成し、前記検出統計値に基づいて前記符号化速度を決定するプロセッサ; によって構成されることを特徴とする受信機。 7.前記複数の符号化速度における符号化の前記確率を表す前記パラメータが 、巡回冗長検査(CRC)情報,符号誤差速度(SER)情報および品質ビット (QB)情報によって構成される請求項6記載の受信機。 8.前記プロセッサが前記パラメータを一次判別関数により合成し、検出統計 値を作成する請求項6記載の受信機。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/624,233 US5671255A (en) | 1996-03-29 | 1996-03-29 | Method and apparatus for determining coding rate in a wireless communication system |
US08/624,233 | 1996-03-29 | ||
PCT/US1997/000435 WO1997037471A1 (en) | 1996-03-29 | 1997-01-15 | Method and apparatus for determining coding rate in a wireless communication system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11506597A true JPH11506597A (ja) | 1999-06-08 |
JP3833260B2 JP3833260B2 (ja) | 2006-10-11 |
Family
ID=24501186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53524197A Expired - Fee Related JP3833260B2 (ja) | 1996-03-29 | 1997-01-15 | ワイヤレス通信システムにおける符号化速度の決定方法および装置 |
Country Status (9)
Country | Link |
---|---|
US (1) | US5671255A (ja) |
EP (1) | EP0830770B1 (ja) |
JP (1) | JP3833260B2 (ja) |
KR (1) | KR100291401B1 (ja) |
CN (1) | CN1097921C (ja) |
BR (1) | BR9702322B1 (ja) |
CA (1) | CA2220965C (ja) |
DE (1) | DE69733736T2 (ja) |
WO (1) | WO1997037471A1 (ja) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5883923A (en) * | 1995-09-18 | 1999-03-16 | Oki Electric Industry Co., Ltd. | Data receiver with symbol rate discrimination and statistical analysis functions |
US6678311B2 (en) | 1996-05-28 | 2004-01-13 | Qualcomm Incorporated | High data CDMA wireless communication system using variable sized channel codes |
US5920552A (en) * | 1996-05-30 | 1999-07-06 | Lucent Technologies, Inc. | Variable rate coding for wireless applications |
DE69717412T2 (de) * | 1996-09-17 | 2003-07-17 | Koninkl Philips Electronics Nv | Übertragungssystem mit verbesserter verriegelungserkennung |
US6108372A (en) * | 1996-10-30 | 2000-08-22 | Qualcomm Inc. | Method and apparatus for decoding variable rate data using hypothesis testing to determine data rate |
US6018546A (en) * | 1997-09-16 | 2000-01-25 | Lucent Technologies Inc. | Technique for soft decision metric generation in a wireless communications system |
US6009553A (en) * | 1997-12-15 | 1999-12-28 | The Whitaker Corporation | Adaptive error correction for a communications link |
US6175588B1 (en) | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression using adaptive equalization in a spread spectrum communication system |
US6175587B1 (en) | 1997-12-30 | 2001-01-16 | Motorola, Inc. | Communication device and method for interference suppression in a DS-CDMA system |
US6112325A (en) * | 1998-01-23 | 2000-08-29 | Dspc Technologies, Ltd. | Method and device for detecting rate |
US6134278A (en) * | 1998-01-30 | 2000-10-17 | Lucent Technologies Inc. | Methods and apparatus for CDMA rate detection |
FI108825B (fi) * | 1998-03-16 | 2002-03-28 | Nokia Corp | Menetelmä estimoida kanavan bittivirhesuhde ja vastaanotin |
TW376497B (en) * | 1998-05-26 | 1999-12-11 | Koninkl Philips Electronics Nv | Transmission system for transmitting a main signal and an auxiliary signal |
JPH11340840A (ja) * | 1998-05-28 | 1999-12-10 | Fujitsu Ltd | 移動通信端末及び送信ビットレート判別方法 |
US6233230B1 (en) * | 1998-10-22 | 2001-05-15 | Sony Corporation | Neural network IS-95 rate determination |
US6463031B1 (en) * | 1998-12-03 | 2002-10-08 | Nokia Mobile Phones Limited | Rate determination technique that utilizes modified cumulative metrics to orthogonalize the rates |
US7042963B1 (en) * | 1998-12-11 | 2006-05-09 | Ericsson Inc. | Methods and apparatus for decoding variably-coded signals based on prior communication |
US6567466B1 (en) * | 1999-02-16 | 2003-05-20 | Agere Systems Inc. | Method and apparatus for determining the data rate of a received signal in a variable data rate orthogonal spread spectrum communication system |
US6137845A (en) * | 1999-04-16 | 2000-10-24 | Motorola, Inc. | Method of determining an encoding rate in a communication system |
US6389067B1 (en) * | 1999-06-10 | 2002-05-14 | Qualcomm, Inc. | Method and apparatus for using frame energy metrics to improve rate determination |
RU2214688C2 (ru) * | 1999-07-08 | 2003-10-20 | Самсунг Электроникс Ко., Лтд. | Устройство и способ обнаружения скорости передачи данных для системы подвижной связи |
US6208699B1 (en) | 1999-09-01 | 2001-03-27 | Qualcomm Incorporated | Method and apparatus for detecting zero rate frames in a communications system |
JP3482931B2 (ja) * | 1999-12-08 | 2004-01-06 | 日本電気株式会社 | Ds/cdma移動体通信システムの無線通信装置およびサーチャ制御方法 |
US7746832B2 (en) * | 2001-01-05 | 2010-06-29 | Qualcomm Incorporated | Method and apparatus for supporting adaptive multi-rate (AMR) data in a CDMA communication system |
US6732321B2 (en) | 2001-03-27 | 2004-05-04 | Motorola, Inc. | Method, apparatus, and article of manufacture for error detection and channel management in a communication system |
CN100431287C (zh) * | 2002-04-29 | 2008-11-05 | 中兴通讯股份有限公司 | 可变速率通信系统中的速率检测方法 |
JP2007519382A (ja) | 2004-09-25 | 2007-07-12 | アウェア, インコーポレイテッド | Crcカウンターの正常化 |
JP2006311490A (ja) * | 2005-03-30 | 2006-11-09 | Hitachi Kokusai Electric Inc | 無線基地局装置 |
US7809090B2 (en) * | 2005-12-28 | 2010-10-05 | Alcatel-Lucent Usa Inc. | Blind data rate identification for enhanced receivers |
US8687745B2 (en) * | 2007-12-13 | 2014-04-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for blind decoding |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57155857A (en) * | 1981-03-23 | 1982-09-27 | Kokusai Denshin Denwa Co Ltd <Kdd> | Maximum likelihood method and apparatus for error |
US5568483A (en) * | 1990-06-25 | 1996-10-22 | Qualcomm Incorporated | Method and apparatus for the formatting of data for transmission |
US5115429A (en) * | 1990-08-02 | 1992-05-19 | Codex Corporation | Dynamic encoding rate control minimizes traffic congestion in a packet network |
US5321705A (en) * | 1990-11-21 | 1994-06-14 | Motorola, Inc. | Error detection system |
AU683479B2 (en) * | 1993-06-18 | 1997-11-13 | Qualcomm Incorporated | Method and apparatus for determining the data rate of a received signal |
ZA947317B (en) * | 1993-09-24 | 1995-05-10 | Qualcomm Inc | Multirate serial viterbi decoder for code division multiple access system applications |
JP2818534B2 (ja) * | 1993-09-28 | 1998-10-30 | 日本電気株式会社 | 符号化変調方式 |
-
1996
- 1996-03-29 US US08/624,233 patent/US5671255A/en not_active Expired - Lifetime
-
1997
- 1997-01-15 JP JP53524197A patent/JP3833260B2/ja not_active Expired - Fee Related
- 1997-01-15 BR BRPI9702322-1A patent/BR9702322B1/pt not_active IP Right Cessation
- 1997-01-15 EP EP97905569A patent/EP0830770B1/en not_active Expired - Lifetime
- 1997-01-15 WO PCT/US1997/000435 patent/WO1997037471A1/en active IP Right Grant
- 1997-01-15 KR KR1019970708580A patent/KR100291401B1/ko active IP Right Grant
- 1997-01-15 CA CA002220965A patent/CA2220965C/en not_active Expired - Lifetime
- 1997-01-15 CN CN97190290A patent/CN1097921C/zh not_active Expired - Lifetime
- 1997-01-15 DE DE69733736T patent/DE69733736T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1997037471A1 (en) | 1997-10-09 |
EP0830770B1 (en) | 2005-07-20 |
DE69733736T2 (de) | 2006-03-30 |
BR9702322B1 (pt) | 2008-11-18 |
EP0830770A1 (en) | 1998-03-25 |
JP3833260B2 (ja) | 2006-10-11 |
KR19990022101A (ko) | 1999-03-25 |
US5671255A (en) | 1997-09-23 |
EP0830770A4 (en) | 2001-04-04 |
CA2220965C (en) | 2001-04-03 |
BR9702322A (pt) | 1999-03-09 |
CA2220965A1 (en) | 1997-10-09 |
DE69733736D1 (de) | 2005-08-25 |
CN1097921C (zh) | 2003-01-01 |
KR100291401B1 (ko) | 2001-06-01 |
CN1185880A (zh) | 1998-06-24 |
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