FI953724A - Fixed radio station or mobile station to SDMA mobile communication system - Google Patents
Fixed radio station or mobile station to SDMA mobile communication system Download PDFInfo
- Publication number
- FI953724A FI953724A FI953724A FI953724A FI953724A FI 953724 A FI953724 A FI 953724A FI 953724 A FI953724 A FI 953724A FI 953724 A FI953724 A FI 953724A FI 953724 A FI953724 A FI 953724A
- Authority
- FI
- Finland
- Prior art keywords
- station
- communication system
- mobile
- radio station
- sdma
- Prior art date
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
- H04B7/0613—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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radio Relay Systems (AREA)
Abstract
The static or mobile radio station (BTS) has a number of complex weighted transmission signals provided via respective transmission paths with corresponding HF transmission stages (TX), connected to respective antenna elements of an antenna array. A modulation stage (MOD) and an associated control (CTR) are inserted in the transmission path for complex weighting of the transmitted signals, via respective phase shifts and/or amplitude weightings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4427755A DE4427755A1 (en) | 1994-08-05 | 1994-08-05 | Fixed or mobile radio station for an SDMA mobile radio system |
Publications (2)
Publication Number | Publication Date |
---|---|
FI953724A0 FI953724A0 (en) | 1995-08-04 |
FI953724A true FI953724A (en) | 1996-02-06 |
Family
ID=6525003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI953724A FI953724A (en) | 1994-08-05 | 1995-08-04 | Fixed radio station or mobile station to SDMA mobile communication system |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0696112B1 (en) |
AT (1) | ATE279817T1 (en) |
AU (1) | AU699049B2 (en) |
DE (2) | DE4427755A1 (en) |
FI (1) | FI953724A (en) |
NO (1) | NO953064L (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3204111B2 (en) * | 1996-08-28 | 2001-09-04 | 松下電器産業株式会社 | Directivity control antenna device |
FI101918B (en) * | 1996-12-20 | 1998-09-15 | Nokia Telecommunications Oy | Packet radio systems using SDMA and method of forming a can al |
US5887267A (en) * | 1997-04-04 | 1999-03-23 | Ericsson Inc. | Bus arbitrators for common local oscillators in cellular radiotelephone base stations |
DE19724087A1 (en) * | 1997-06-07 | 1998-12-10 | Fraunhofer Ges Forschung | Transmitting and receiving device for high-frequency radiation and method for high-frequency transmission |
SE511907C2 (en) | 1997-10-01 | 1999-12-13 | Ericsson Telefon Ab L M | Integrated communication device |
SE511911C2 (en) * | 1997-10-01 | 1999-12-13 | Ericsson Telefon Ab L M | Antenna unit with a multi-layer structure |
DE19747366C2 (en) * | 1997-10-27 | 1999-08-12 | Siemens Ag | Method, base station, receiving device and mobile station for transmitting useful information and signaling information for a mobile communication system |
DE10122696C2 (en) * | 2001-05-10 | 2003-06-18 | Siemens Ag | Transmission method for the transmission of a non-continuously transmitted mobile radio channel as well as mobile radio base station and mobile radio network |
DE10145366A1 (en) * | 2001-09-14 | 2003-04-03 | Siemens Ag | Determining transmission point-specific transmission signals involves determining weighting factors from source and/or transmission point-specific quality criterion |
US20030109282A1 (en) * | 2001-12-06 | 2003-06-12 | Itzhak Shperling | Method and base station for providing phase-shift transmit diversity |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4383332A (en) * | 1980-11-21 | 1983-05-10 | Bell Telephone Laboratories, Incorporated | High capacity digital mobile radio system |
JPS6124338A (en) * | 1984-07-12 | 1986-02-03 | Nec Corp | Multi-direction multiplex communication system |
DE3704201A1 (en) * | 1987-02-11 | 1988-09-01 | Bbc Brown Boveri & Cie | SHORT WAVE DIPOLE GROUPS |
US5031193A (en) * | 1989-11-13 | 1991-07-09 | Motorola, Inc. | Method and apparatus for diversity reception of time-dispersed signals |
JP2684888B2 (en) * | 1991-08-06 | 1997-12-03 | 国際電信電話株式会社 | Adaptive array antenna control method |
DE4134357A1 (en) * | 1991-10-17 | 1993-04-22 | Standard Elektrik Lorenz Ag | MESSAGE TRANSFER SYSTEM |
US5515378A (en) * | 1991-12-12 | 1996-05-07 | Arraycomm, Inc. | Spatial division multiple access wireless communication systems |
US5274844A (en) * | 1992-05-11 | 1993-12-28 | Motorola, Inc. | Beam pattern equalization method for an adaptive array |
US5305353A (en) * | 1992-05-29 | 1994-04-19 | At&T Bell Laboratories | Method and apparatus for providing time diversity |
US5289499A (en) * | 1992-12-29 | 1994-02-22 | At&T Bell Laboratories | Diversity for direct-sequence spread spectrum systems |
-
1994
- 1994-08-05 DE DE4427755A patent/DE4427755A1/en not_active Withdrawn
-
1995
- 1995-07-21 AU AU27117/95A patent/AU699049B2/en not_active Ceased
- 1995-08-01 AT AT95112064T patent/ATE279817T1/en not_active IP Right Cessation
- 1995-08-01 EP EP95112064A patent/EP0696112B1/en not_active Expired - Lifetime
- 1995-08-01 DE DE1995510960 patent/DE59510960D1/en not_active Expired - Lifetime
- 1995-08-04 FI FI953724A patent/FI953724A/en unknown
- 1995-08-04 NO NO953064A patent/NO953064L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE4427755A1 (en) | 1996-02-08 |
NO953064L (en) | 1996-02-06 |
AU699049B2 (en) | 1998-11-19 |
EP0696112A3 (en) | 2000-05-10 |
FI953724A0 (en) | 1995-08-04 |
EP0696112A2 (en) | 1996-02-07 |
DE59510960D1 (en) | 2004-11-18 |
AU2711795A (en) | 1996-02-15 |
EP0696112B1 (en) | 2004-10-13 |
NO953064D0 (en) | 1995-08-04 |
ATE279817T1 (en) | 2004-10-15 |
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