GB2421405B8 - Time domain spreading method and apparatus - Google Patents
Time domain spreading method and apparatusInfo
- Publication number
- GB2421405B8 GB2421405B8 GB0427730A GB0427730A GB2421405B8 GB 2421405 B8 GB2421405 B8 GB 2421405B8 GB 0427730 A GB0427730 A GB 0427730A GB 0427730 A GB0427730 A GB 0427730A GB 2421405 B8 GB2421405 B8 GB 2421405B8
- Authority
- GB
- United Kingdom
- Prior art keywords
- time domain
- spreading method
- domain spreading
- time
- spreading
- 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.)
- Active
Links
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
- H04B1/7163—Spread spectrum techniques using impulse radio
- H04B1/7183—Synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0427730A GB2421405B (en) | 2004-12-17 | 2004-12-17 | Time domain spreading method and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0427730A GB2421405B (en) | 2004-12-17 | 2004-12-17 | Time domain spreading method and apparatus |
Publications (5)
Publication Number | Publication Date |
---|---|
GB2421405B8 true GB2421405B8 (en) | |
GB0427730D0 GB0427730D0 (en) | 2005-01-19 |
GB2421405A GB2421405A (en) | 2006-06-21 |
GB2421405B GB2421405B (en) | 2007-12-12 |
GB2421405A8 GB2421405A8 (en) | 2008-03-10 |
Family
ID=34090269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0427730A Active GB2421405B (en) | 2004-12-17 | 2004-12-17 | Time domain spreading method and apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2421405B (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6130918A (en) * | 1997-12-01 | 2000-10-10 | Nortel Networks Limited | Method and apparatus for reducing the peak-to-average ratio in a multicarrier communication system |
US6763072B1 (en) * | 1999-08-25 | 2004-07-13 | Victor Company Of Japan, Ltd. | Method and apparatus for modulation and demodulation related to orthogonal frequency division multiplexing |
CN1333618A (en) * | 2000-07-18 | 2002-01-30 | 日本胜利株式会社 | Recursion type discrete Fourier transformer |
-
2004
- 2004-12-17 GB GB0427730A patent/GB2421405B/en active Active
Also Published As
Publication number | Publication date |
---|---|
GB0427730D0 (en) | 2005-01-19 |
GB2421405A8 (en) | 2008-03-10 |
GB2421405A (en) | 2006-06-21 |
GB2421405B (en) | 2007-12-12 |
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