NO318825B1 - PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere - Google Patents
PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere Download PDFInfo
- Publication number
- NO318825B1 NO318825B1 NO20001819A NO20001819A NO318825B1 NO 318825 B1 NO318825 B1 NO 318825B1 NO 20001819 A NO20001819 A NO 20001819A NO 20001819 A NO20001819 A NO 20001819A NO 318825 B1 NO318825 B1 NO 318825B1
- Authority
- NO
- Norway
- Prior art keywords
- code
- signal
- signals
- spreading
- period
- Prior art date
Links
- 238000003892 spreading Methods 0.000 title claims abstract description 156
- 230000007480 spreading Effects 0.000 title claims abstract description 155
- 238000004891 communication Methods 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 claims abstract description 74
- 238000001228 spectrum Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims description 41
- 238000003860 storage Methods 0.000 claims description 19
- 238000001914 filtration Methods 0.000 claims description 12
- 230000003111 delayed effect Effects 0.000 claims description 8
- 230000001427 coherent effect Effects 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000013500 data storage Methods 0.000 claims description 5
- 230000003595 spectral effect Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000003044 adaptive effect Effects 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 230000006870 function Effects 0.000 description 25
- 238000012545 processing Methods 0.000 description 20
- 230000000875 corresponding effect Effects 0.000 description 16
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- 101150055297 SET1 gene Proteins 0.000 description 1
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Classifications
-
- 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
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/58—Random or pseudo-random number generators
- G06F7/582—Pseudo-random number generators
- G06F7/584—Pseudo-random number generators using finite field arithmetic, e.g. using a linear feedback shift register
-
- 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
-
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/0022—PN, e.g. Kronecker
-
- 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
- H04B1/70755—Setting of lock conditions, e.g. threshold
-
- 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
- H04B2201/70716—Quadrature
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6169897P | 1997-10-10 | 1997-10-10 | |
| PCT/US1998/021466 WO1999019992A1 (en) | 1997-10-10 | 1998-10-09 | Multi-layered pn code spreading in a multi-user communications system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20001819D0 NO20001819D0 (no) | 2000-04-07 |
| NO20001819L NO20001819L (no) | 2000-06-08 |
| NO318825B1 true NO318825B1 (no) | 2005-05-09 |
Family
ID=22037524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20001819A NO318825B1 (no) | 1997-10-10 | 2000-04-07 | PN-kodespredning over flere lag i et kommunikasjonssystem for mange brukere |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US6493376B1 (ja) |
| EP (1) | EP1029398B1 (ja) |
| JP (1) | JP4386574B2 (ja) |
| KR (1) | KR100693682B1 (ja) |
| CN (2) | CN100590988C (ja) |
| AT (1) | ATE450084T1 (ja) |
| AU (1) | AU754257B2 (ja) |
| BR (1) | BR9813026A (ja) |
| CA (1) | CA2305718C (ja) |
| DE (1) | DE69841326D1 (ja) |
| NO (1) | NO318825B1 (ja) |
| RU (1) | RU2221337C2 (ja) |
| WO (1) | WO1999019992A1 (ja) |
Families Citing this family (71)
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| DE69908125T2 (de) * | 1999-09-13 | 2003-12-04 | Mitsubishi Electric Inf Tech | Zuweisung von Spreizfolgen in einem MCCDMA-System |
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| US6324210B1 (en) * | 1999-12-17 | 2001-11-27 | Golden Bridge Technology Incorporated | Sliding matched filter with flexible hardware complexity |
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| JP3805205B2 (ja) * | 2000-04-06 | 2006-08-02 | 株式会社エヌ・ティ・ティ・ドコモ | Ｃｄｍａセルラ方式における通信品質測定方法およびその装置 |
| CN101005314B (zh) | 2000-04-07 | 2013-06-05 | 交互数字技术公司 | 用于无线通信系统的基站同步 |
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| JP3860762B2 (ja) | 2002-02-14 | 2006-12-20 | 株式会社エヌ・ティ・ティ・ドコモ | 移動通信システム、チャネル同期確立方法、及び移動局 |
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| US7991040B2 (en) * | 2006-04-04 | 2011-08-02 | Qualcomm Incorporated | Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal |
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| CN101247141B (zh) * | 2007-12-05 | 2011-07-06 | 电子科技大学 | 一种跳频信号时差估计方法 |
| US8477830B2 (en) | 2008-03-18 | 2013-07-02 | On-Ramp Wireless, Inc. | Light monitoring system using a random phase multiple access system |
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| US8520721B2 (en) | 2008-03-18 | 2013-08-27 | On-Ramp Wireless, Inc. | RSSI measurement mechanism in the presence of pulsed jammers |
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| US8363699B2 (en) | 2009-03-20 | 2013-01-29 | On-Ramp Wireless, Inc. | Random timing offset determination |
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| US8406423B2 (en) * | 2010-03-16 | 2013-03-26 | Telcordia Technologies, Inc. | Multi-bit cryptographically secure encryptor for M-ary spectral phase encoder optical code division multiple access |
| US9367718B2 (en) | 2012-10-22 | 2016-06-14 | Iotera, Inc. | Methods for enabling low-power RFID communication |
| US9065483B2 (en) * | 2013-01-21 | 2015-06-23 | Micron Technology, Inc. | Determining soft data using a classification code |
| TWI651009B (zh) * | 2014-02-26 | 2019-02-11 | 日商新力股份有限公司 | 送訊裝置、收訊裝置及資訊處理方法 |
| US10417560B2 (en) * | 2016-12-01 | 2019-09-17 | Via Alliance Semiconductor Co., Ltd. | Neural network unit that performs efficient 3-dimensional convolutions |
| GB2560570A (en) * | 2017-03-16 | 2018-09-19 | British Telecomm | Branched communications network |
| WO2018166693A1 (en) | 2017-03-16 | 2018-09-20 | British Telecommunications Public Limited Company | Broadcasting in a communications network |
| EP3596857B1 (en) | 2017-03-16 | 2021-03-24 | British Telecommunications Public Limited Company | Branched communications network |
| US10879952B2 (en) * | 2018-04-18 | 2020-12-29 | Huawei Technologies Co., Ltd. | Apparatus and receiver for performing synchronization in analog spread spectrum systems |
| CN111308521B (zh) * | 2018-12-12 | 2022-03-04 | 北京紫光展锐通信技术有限公司 | Gnss系统的码相位估计、伪距测量方法及装置、终端 |
| CN110690902B (zh) * | 2019-09-25 | 2022-05-17 | 电子科技大学 | 一种基于随机截断的时间交织adc失配优化方法 |
| CN114826324A (zh) * | 2022-05-06 | 2022-07-29 | 中国人民解放军海军潜艇学院 | 一种基于频率压缩-能量接收器的水下移动扩频通信方法 |
| CN115567169A (zh) * | 2022-12-06 | 2023-01-03 | 成都航天通信设备有限责任公司 | 一种低编码速率下的解调译码方法、系统、设备及存储介质 |
| CN116232423A (zh) * | 2022-12-29 | 2023-06-06 | 西安空间无线电技术研究所 | 一种基于主从同步的时分双工星间链路通信方法 |
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| US4969159A (en) * | 1989-03-22 | 1990-11-06 | Harris Corporation | Spread spectrum communication system employing composite spreading codes with matched filter demodulator |
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| US5228054A (en) | 1992-04-03 | 1993-07-13 | Qualcomm Incorporated | Power-of-two length pseudo-noise sequence generator with fast offset adjustment |
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| DE69533540T2 (de) | 1994-07-29 | 2005-11-17 | Qualcomm, Inc., San Diego | Verfahren und gerät zum ausführen der kodeerfassung in einem cdma übertragungssystem |
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| US5790588A (en) * | 1995-06-07 | 1998-08-04 | Ntt Mobile Communications Network, Inc. | Spread spectrum transmitter and receiver employing composite spreading codes |
| US5577025A (en) | 1995-06-30 | 1996-11-19 | Qualcomm Incorporated | Signal acquisition in a multi-user communication system using multiple walsh channels |
-
1998
- 1998-10-09 KR KR1020007003877A patent/KR100693682B1/ko not_active IP Right Cessation
- 1998-10-09 JP JP2000516440A patent/JP4386574B2/ja not_active Expired - Lifetime
- 1998-10-09 EP EP98956104A patent/EP1029398B1/en not_active Expired - Lifetime
- 1998-10-09 CN CN200610004606A patent/CN100590988C/zh not_active Expired - Lifetime
- 1998-10-09 WO PCT/US1998/021466 patent/WO1999019992A1/en active IP Right Grant
- 1998-10-09 DE DE69841326T patent/DE69841326D1/de not_active Expired - Lifetime
- 1998-10-09 US US09/169,358 patent/US6493376B1/en not_active Expired - Lifetime
- 1998-10-09 CA CA2305718A patent/CA2305718C/en not_active Expired - Fee Related
- 1998-10-09 BR BR9813026-9A patent/BR9813026A/pt not_active Application Discontinuation
- 1998-10-09 RU RU2000111521/09A patent/RU2221337C2/ru not_active IP Right Cessation
- 1998-10-09 AU AU12702/99A patent/AU754257B2/en not_active Ceased
- 1998-10-09 CN CNB988120992A patent/CN100459444C/zh not_active Expired - Lifetime
- 1998-10-09 AT AT98956104T patent/ATE450084T1/de not_active IP Right Cessation
-
2000
- 2000-04-07 NO NO20001819A patent/NO318825B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2305718C (en) | 2010-12-07 |
| CN1819473A (zh) | 2006-08-16 |
| JP4386574B2 (ja) | 2009-12-16 |
| CN1281599A (zh) | 2001-01-24 |
| DE69841326D1 (de) | 2010-01-07 |
| KR20010031050A (ko) | 2001-04-16 |
| KR100693682B1 (ko) | 2007-03-09 |
| CN100590988C (zh) | 2010-02-17 |
| NO20001819D0 (no) | 2000-04-07 |
| AU1270299A (en) | 1999-05-03 |
| CN100459444C (zh) | 2009-02-04 |
| US6493376B1 (en) | 2002-12-10 |
| EP1029398B1 (en) | 2009-11-25 |
| AU754257B2 (en) | 2002-11-07 |
| ATE450084T1 (de) | 2009-12-15 |
| JP2001520473A (ja) | 2001-10-30 |
| WO1999019992A1 (en) | 1999-04-22 |
| BR9813026A (pt) | 2000-08-15 |
| NO20001819L (no) | 2000-06-08 |
| CA2305718A1 (en) | 1999-04-22 |
| RU2221337C2 (ru) | 2004-01-10 |
| EP1029398A1 (en) | 2000-08-23 |
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