GB2503418A - Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios - Google Patents
Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios Download PDFInfo
- Publication number
- GB2503418A GB2503418A GB1207546.1A GB201207546A GB2503418A GB 2503418 A GB2503418 A GB 2503418A GB 201207546 A GB201207546 A GB 201207546A GB 2503418 A GB2503418 A GB 2503418A
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- GB
- United Kingdom
- Prior art keywords
- sequences
- signature sequences
- signature
- data
- receiver
- 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.)
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Links
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- 230000005540 biological transmission Effects 0.000 abstract description 82
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0678—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using different spreading codes between antennas
-
- 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
- H04B1/709—Correlator structure
- H04B1/7093—Matched filter type
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0077—Multicode, e.g. multiple codes assigned to one user
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/16—Code allocation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1207546.1A GB2503418A (en) | 2012-04-27 | 2012-04-27 | Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios |
| CA 2887479 CA2887479A1 (en) | 2012-04-27 | 2013-04-26 | Data transmission method and apparatus |
| KR20147033488A KR20150030646A (ko) | 2012-04-27 | 2013-04-26 | 데이터 전송 방법 및 장치 |
| CN201380034445.5A CN104521162A (zh) | 2012-04-27 | 2013-04-26 | 数据传输方法和装置 |
| US14/397,153 US20150110160A1 (en) | 2012-04-27 | 2013-04-26 | Data transmission method and apparatus |
| IN9875DEN2014 IN2014DN09875A (enExample) | 2012-04-27 | 2013-04-26 | |
| JP2015507588A JP2015519806A (ja) | 2012-04-27 | 2013-04-26 | データ送信方法と装置 |
| PCT/GB2013/000185 WO2013160646A1 (en) | 2012-04-27 | 2013-04-26 | Data transmission method and apparatus |
| EP13724858.9A EP2842248A1 (en) | 2012-04-27 | 2013-04-26 | Data transmission method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1207546.1A GB2503418A (en) | 2012-04-27 | 2012-04-27 | Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201207546D0 GB201207546D0 (en) | 2012-06-13 |
| GB2503418A true GB2503418A (en) | 2014-01-01 |
Family
ID=46330570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1207546.1A Withdrawn GB2503418A (en) | 2012-04-27 | 2012-04-27 | Spreading data symbols using a number of signature sequences selected in accordance with system values indicative of signal-to-noise ratios |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20150110160A1 (enExample) |
| EP (1) | EP2842248A1 (enExample) |
| JP (1) | JP2015519806A (enExample) |
| KR (1) | KR20150030646A (enExample) |
| CN (1) | CN104521162A (enExample) |
| CA (1) | CA2887479A1 (enExample) |
| GB (1) | GB2503418A (enExample) |
| IN (1) | IN2014DN09875A (enExample) |
| WO (1) | WO2013160646A1 (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2515570A (en) * | 2013-06-28 | 2014-12-31 | Imp Innovations Ltd | Data transmission optimisation method and apparatus |
| US9674836B2 (en) * | 2014-01-27 | 2017-06-06 | Spectrum Effect, Inc. | Method and system for coexistence of radar and communication systems |
| CN105162566B (zh) * | 2015-09-09 | 2018-02-16 | 嘉兴国电通新能源科技有限公司 | 基于ofdm的plc系统的低复杂度比特位加载方法 |
| KR101900474B1 (ko) | 2016-11-30 | 2018-09-20 | 경희대학교 산학협력단 | Ofdma 시스템에서 주파수 자원을 할당하기 위한 장치 및 방법 |
| WO2018112903A1 (zh) * | 2016-12-23 | 2018-06-28 | 华为技术有限公司 | 一种时钟同步的方法和装置 |
| CN107425889B (zh) * | 2017-05-26 | 2020-11-20 | 东南大学 | 一种5g通信系统接收端基带信号联合处理方法 |
| CN110059811B (zh) | 2017-11-06 | 2024-08-02 | 畅想科技有限公司 | 权重缓冲器 |
| CN110011692A (zh) * | 2017-12-29 | 2019-07-12 | 株式会社Ntt都科摩 | 一种扩频通信方法、用户设备和基站 |
| CN121012541A (zh) * | 2024-05-24 | 2025-11-25 | 华为技术有限公司 | 一种通信方法及装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5781542A (en) * | 1994-12-02 | 1998-07-14 | Kabushiki Kaisha Toshiba | Information communication system using multi-code CDMA mode |
| JP2006340051A (ja) * | 2005-06-02 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Ｃｄｍａ基地局 |
| WO2013034875A1 (en) * | 2011-09-08 | 2013-03-14 | Imperial Innovations Limited | Signature sequence selection, system value bit loading and energy allocation method and apparatus for multicode single- input single - output and multiple- input multiple - output parallel channels |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5677930A (en) * | 1995-07-19 | 1997-10-14 | Ericsson Inc. | Method and apparatus for spread spectrum channel estimation |
| US5615209A (en) * | 1995-07-26 | 1997-03-25 | Ericsson Inc. | Method and apparatus for CDMA signal orthogonalization |
| US6975666B2 (en) * | 1999-12-23 | 2005-12-13 | Institut National De La Recherche Scientifique | Interference suppression in CDMA systems |
| CN1320779C (zh) * | 2001-06-25 | 2007-06-06 | 诺基亚有限公司 | 在移动通信系统中优化调制和编码方案及多代码的方法 |
| EP1468517B1 (en) * | 2002-01-04 | 2016-03-30 | Nokia Technologies Oy | High rate transmit diversity transmission and reception |
| US7116944B2 (en) * | 2002-02-07 | 2006-10-03 | Lucent Technologies Inc. | Method and apparatus for feedback error detection in a wireless communications systems |
| KR100571862B1 (ko) * | 2003-02-17 | 2006-04-17 | 삼성전자주식회사 | 다중 안테나를 포함하는 이동통신 시스템 및 그 방법 |
| US7535970B2 (en) * | 2003-08-23 | 2009-05-19 | Samsung Electronics Co., Ltd. | Wireless communication apparatus and method for multiple transmit and receive antenna system using multiple codes |
| US20050201478A1 (en) * | 2004-03-10 | 2005-09-15 | Holger Claussen | Modulation in a mobile telecommunications system |
| EP1589673B1 (fr) * | 2004-04-22 | 2014-06-04 | Orange | Procédé de détection multiutilisateur iterative pour systèmes de communications CDMA sur canal MIMO |
| US8780957B2 (en) * | 2005-01-14 | 2014-07-15 | Qualcomm Incorporated | Optimal weights for MMSE space-time equalizer of multicode CDMA system |
| US20080031369A1 (en) * | 2006-06-07 | 2008-02-07 | Li Ye Geoffrey | Apparatus and methods for multi-carrier wireless access with energy spreading |
| US8381060B2 (en) * | 2008-05-15 | 2013-02-19 | Sharp Kabushiki Kaisha | Communication device, communication system, reception method, and communication method |
-
2012
- 2012-04-27 GB GB1207546.1A patent/GB2503418A/en not_active Withdrawn
-
2013
- 2013-04-26 IN IN9875DEN2014 patent/IN2014DN09875A/en unknown
- 2013-04-26 US US14/397,153 patent/US20150110160A1/en not_active Abandoned
- 2013-04-26 JP JP2015507588A patent/JP2015519806A/ja active Pending
- 2013-04-26 EP EP13724858.9A patent/EP2842248A1/en not_active Withdrawn
- 2013-04-26 KR KR20147033488A patent/KR20150030646A/ko not_active Withdrawn
- 2013-04-26 WO PCT/GB2013/000185 patent/WO2013160646A1/en not_active Ceased
- 2013-04-26 CN CN201380034445.5A patent/CN104521162A/zh active Pending
- 2013-04-26 CA CA 2887479 patent/CA2887479A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5781542A (en) * | 1994-12-02 | 1998-07-14 | Kabushiki Kaisha Toshiba | Information communication system using multi-code CDMA mode |
| JP2006340051A (ja) * | 2005-06-02 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Ｃｄｍａ基地局 |
| WO2013034875A1 (en) * | 2011-09-08 | 2013-03-14 | Imperial Innovations Limited | Signature sequence selection, system value bit loading and energy allocation method and apparatus for multicode single- input single - output and multiple- input multiple - output parallel channels |
Non-Patent Citations (1)
| Title |
|---|
| "Transmitter adaptation for CDMA systems via power control and code diversity"; Tat M. Lok; IEEE Military Communications Conference MILCOM 2001. Communications for Network-Centric Operations: Creating the Information Force; Volume 2; Pages 1185 - 1189 * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201207546D0 (en) | 2012-06-13 |
| IN2014DN09875A (enExample) | 2015-08-07 |
| KR20150030646A (ko) | 2015-03-20 |
| JP2015519806A (ja) | 2015-07-09 |
| CN104521162A (zh) | 2015-04-15 |
| EP2842248A1 (en) | 2015-03-04 |
| CA2887479A1 (en) | 2013-10-31 |
| US20150110160A1 (en) | 2015-04-23 |
| WO2013160646A1 (en) | 2013-10-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |