GB2436471B - Bi-directional vector modulator - Google Patents
Bi-directional vector modulatorInfo
- Publication number
- GB2436471B GB2436471B GB0708678A GB0708678A GB2436471B GB 2436471 B GB2436471 B GB 2436471B GB 0708678 A GB0708678 A GB 0708678A GB 0708678 A GB0708678 A GB 0708678A GB 2436471 B GB2436471 B GB 2436471B
- Authority
- GB
- United Kingdom
- Prior art keywords
- vector modulator
- directional vector
- directional
- modulator
- vector
- 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.)
- Expired - Lifetime
Links
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
- H04B7/0697—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 spatial multiplexing
-
- 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
-
- 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
- H04B7/0615—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 of weighted versions of same signal
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/38—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0708678A GB2436471B (en) | 2003-05-19 | 2004-05-19 | Bi-directional vector modulator |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/441,945 US6894657B2 (en) | 2003-05-19 | 2003-05-19 | Bi-directional vector modulator |
GB0525775A GB2419051B (en) | 2003-05-19 | 2004-05-19 | Bi-Directional Vector Modulator |
GB0708678A GB2436471B (en) | 2003-05-19 | 2004-05-19 | Bi-directional vector modulator |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0708678D0 GB0708678D0 (en) | 2007-06-13 |
GB2436471A GB2436471A (en) | 2007-09-26 |
GB2436471B true GB2436471B (en) | 2008-02-13 |
Family
ID=38477344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0708678A Expired - Lifetime GB2436471B (en) | 2003-05-19 | 2004-05-19 | Bi-directional vector modulator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2436471B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9276314B2 (en) * | 2012-10-15 | 2016-03-01 | Electronics And Telecommunications Research Institute | Central node apparatus and method for transmitting wireless signals between central office node and remote node using beam patterns and antenna polarization |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040174840A1 (en) * | 2003-03-03 | 2004-09-09 | Takashi Yano | Data transmission method for a mobile communication system |
US20050130606A1 (en) * | 2003-12-02 | 2005-06-16 | Wang James J. | System and method for providing a smart antenna |
WO2006027728A2 (en) * | 2004-09-10 | 2006-03-16 | Koninklijke Philips Electronics N.V. | Wireless communication apparatus with multi-antenna and method thereof |
-
2004
- 2004-05-19 GB GB0708678A patent/GB2436471B/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040174840A1 (en) * | 2003-03-03 | 2004-09-09 | Takashi Yano | Data transmission method for a mobile communication system |
US20050130606A1 (en) * | 2003-12-02 | 2005-06-16 | Wang James J. | System and method for providing a smart antenna |
WO2006027728A2 (en) * | 2004-09-10 | 2006-03-16 | Koninklijke Philips Electronics N.V. | Wireless communication apparatus with multi-antenna and method thereof |
Also Published As
Publication number | Publication date |
---|---|
GB2436471A (en) | 2007-09-26 |
GB0708678D0 (en) | 2007-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20240518 |