JPH11505083A - バーストで送信された信号の受信と検索の方法 - Google Patents
バーストで送信された信号の受信と検索の方法Info
- Publication number
- JPH11505083A JPH11505083A JP8533581A JP53358196A JPH11505083A JP H11505083 A JPH11505083 A JP H11505083A JP 8533581 A JP8533581 A JP 8533581A JP 53358196 A JP53358196 A JP 53358196A JP H11505083 A JPH11505083 A JP H11505083A
- Authority
- JP
- Japan
- Prior art keywords
- search
- signal
- offset
- rake
- walsh
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
- H04B1/70752—Partial correlation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/70756—Jumping within the code, i.e. masking or slewing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7113—Determination of path profile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Radio Relay Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 共通の周波数を共有する拡散スペクトル呼び信号のグループから成る信号 を受信する方法に於て、前記拡散スペクトル信号が、固定された長さのグループ の中で、一連の記号に符号化された一連のビットから成り、一連の前記記号が、 電力制御グループにグループ化されており、共通の前記電力制御グループの中の 各前記記号が、共通の電力レベルで送信され、また前記電力制御グループが、指 定キャラクタ群(バースト)で送信され、またゼロ基準値時間オフセットからの パス遅れ時間オフセットに於ける前記呼び信号出力を決定するために前記グルー プの中で前記呼び信号を分離する方法であって, PNシーケンス・バッファーの中にPNシーケンス・データ・ビットを保存す る; 一番目の受信された信号サンプルのセットを、制限されたサイズを有するサン プル・バッファーの中に保存する; 一番目の固定された長さの前記呼び信号サンプルを、一番目の狭隘化された出 力を作るための、前記PNシーケンス・バッファーからのPNシーケンス・デー タ・ビットの一番目のセットを有する一番目のパス遅れ時間に対応する前記信号 バッファーから狭隘化する; 二番目の受信された呼び信号見本のセットを、前記バッファーの中に保存する ;及び 二番目の固定された長さの呼び信号サンプルを、二番目の狭隘化出力を作るた めの前記PNシーケンス・バッファーからの前記一番目のPNシーケンス・デー タ・ビットを有する二番目のパス遅れ時間に対応する前記サンプルバッファーか ら狭隘化する; 段階から成り, ここにおいて,前記二番目の固定された長さの呼び信号のセットが、前記一番 目の固定された長さの呼び信号のサンプルと同じ呼び信号サンプルるの大きな数 字から成り、また前記一番目の長さと二番目の受信された呼び信号サンプルのセ ットが、固定された長さの前記一番目と二番目の固定された長さの呼び信号サン プルのセットの分数であり、 前記一番目との番目の固定された長さの呼び信号サンプルを保存する前記段階 と、また前記一番目と二番目の固定された長さの呼び信号サンプルの狭隘化の前 記段階が、前記呼び信号が前記電力制御グループの一つから成る確率とは独立し て実行されることを特徴とする 方法。 2. 共通の周波数帯を共有し、一番目のスペクトル信号を、一番目の信号のゼ ロ・オフセット基準値時間からのパス遅れ時間オフセットに於ける信号力を決定 するらめに前記拡散スペクトル信号のグループの中から分離する拡散スペクトル 信号グループから成る信号を受信する方法に於て、前記一番目の信号が、一連の 記号から成り、共通記号の中の前記記号が、固定された電力レベルで送信され、 連続記号セットを、各種の信号レベルで送信することができ、前記各種の信号レ ベルが、ゼロ・レベルから成り、前記一番目の信号の送信がゲートで制御され、 前記方法が; 一番目の電力見積を作るための、一番目のオフセットに於て一番 目の記号セットに対応する一番目の呼び信号サンプルのセットを検索する; 二番目の電力見積を作るための、前記一番目のオフセットに於ける前記一番目 の呼び信号に対する前記一番目の記号に対応する二番目の呼び信号サンプルのセ ットを検索する; 前記一番目のオフセットの記号セット電力レベル見積を作るために前記一番目 と二番目の電力見積を合計する; 三番目の電力見積を作るための、二番目のオフセットに於ける前記一番目の信 号に対する二番目の記号セットに対応する三番目の呼び信号サンプルのセットを 検索する; 四番目の電力見積を作るための、前記二番目のオフセットに於ける前記二番目 の記号セットに対応する四番目の呼び信号サンプルのセットを検索する;及び 前記二番目のオフセットに於ける記号セット電力レベル見積を作るための、前 記三番目と四番目の電力見積を合計する; 段階からなり, ここにおいて,前記一番目の記号セットと前記二番目の記号セットが、時間で 隣接する記号のセットに対応し、また前記検索段階が、前記固定された電力レベ ルに無関係に、連続して実行されることを特徴とする方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US436,029 | 1995-05-05 | ||
US08/436,029 US5710768A (en) | 1994-09-30 | 1995-05-05 | Method of searching for a bursty signal |
PCT/US1996/007567 WO1996035268A1 (en) | 1995-05-05 | 1996-05-02 | Method of receiving and searching a signal transmitting in bursts |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11505083A true JPH11505083A (ja) | 1999-05-11 |
JP3388754B2 JP3388754B2 (ja) | 2003-03-24 |
Family
ID=23730811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53358196A Expired - Fee Related JP3388754B2 (ja) | 1995-05-05 | 1996-05-02 | バーストで送信された信号の受信と検索の方法 |
Country Status (20)
Country | Link |
---|---|
US (2) | US5710768A (ja) |
EP (1) | EP0824802B1 (ja) |
JP (1) | JP3388754B2 (ja) |
KR (1) | KR100380427B1 (ja) |
CN (1) | CN1099171C (ja) |
AR (1) | AR001852A1 (ja) |
AT (1) | ATE227481T1 (ja) |
AU (1) | AU699159B2 (ja) |
BR (1) | BR9608287A (ja) |
DE (1) | DE69624698T2 (ja) |
ES (1) | ES2184871T3 (ja) |
FI (1) | FI113820B (ja) |
HK (1) | HK1017523A1 (ja) |
IL (1) | IL118116A (ja) |
MX (1) | MX9708514A (ja) |
MY (1) | MY113603A (ja) |
RU (1) | RU2157592C2 (ja) |
TW (1) | TW297974B (ja) |
WO (1) | WO1996035268A1 (ja) |
ZA (1) | ZA963188B (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003503935A (ja) * | 1999-07-01 | 2003-01-28 | クゥアルコム・インコーポレイテッド | 無線通信装置におけるサーチ持続時間の動的な制御方法 |
JP2009049983A (ja) * | 1997-09-08 | 2009-03-05 | Qualcomm Inc | 直交スポットビーム、セクターおよびピコセルを提供する方法および装置 |
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JP2009049983A (ja) * | 1997-09-08 | 2009-03-05 | Qualcomm Inc | 直交スポットビーム、セクターおよびピコセルを提供する方法および装置 |
JP2003503935A (ja) * | 1999-07-01 | 2003-01-28 | クゥアルコム・インコーポレイテッド | 無線通信装置におけるサーチ持続時間の動的な制御方法 |
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ES2184871T3 (es) | 2003-04-16 |
EP0824802B1 (en) | 2002-11-06 |
IL118116A (en) | 2000-06-01 |
FI974132A0 (fi) | 1997-11-04 |
FI113820B (fi) | 2004-06-15 |
EP0824802A1 (en) | 1998-02-25 |
KR100380427B1 (ko) | 2003-07-22 |
WO1996035268A1 (en) | 1996-11-07 |
DE69624698D1 (de) | 2002-12-12 |
AU699159B2 (en) | 1998-11-26 |
KR19990008350A (ko) | 1999-01-25 |
TW297974B (ja) | 1997-02-11 |
BR9608287A (pt) | 1999-06-15 |
US5710768A (en) | 1998-01-20 |
ATE227481T1 (de) | 2002-11-15 |
CN1200850A (zh) | 1998-12-02 |
CN1099171C (zh) | 2003-01-15 |
ZA963188B (en) | 1996-10-23 |
HK1017523A1 (en) | 1999-11-19 |
JP3388754B2 (ja) | 2003-03-24 |
AR001852A1 (es) | 1997-12-10 |
MX9708514A (es) | 1998-02-28 |
RU2157592C2 (ru) | 2000-10-10 |
AU6145896A (en) | 1996-11-21 |
DE69624698T2 (de) | 2003-08-21 |
FI974132A (fi) | 1998-01-05 |
MY113603A (en) | 2002-04-30 |
IL118116A0 (en) | 1996-09-12 |
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