CH682195A5 - - Google Patents
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- Publication number
- CH682195A5 CH682195A5 CH229091A CH229091A CH682195A5 CH 682195 A5 CH682195 A5 CH 682195A5 CH 229091 A CH229091 A CH 229091A CH 229091 A CH229091 A CH 229091A CH 682195 A5 CH682195 A5 CH 682195A5
- Authority
- CH
- Switzerland
- Prior art keywords
- symbols
- mobile radio
- base station
- antennas
- transmission antennas
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 25
- 230000002596 correlated effect Effects 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 6
- 230000033764 rhythmic process Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007480 spreading Effects 0.000 claims description 2
- 238000005562 fading Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001413 cellular effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- H04B7/0602—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 antenna switching
- H04B7/0604—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 antenna switching with predefined switching scheme
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0057—Block codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
- H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Transmission System (AREA)
- Mobile Radio Communication Systems (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH229091A CH682195A5 (ru) | 1991-07-31 | 1991-07-31 | |
| DE19924219677 DE4219677C2 (de) | 1991-07-31 | 1992-06-16 | Verfahren zum Übertragen digitaler Daten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH229091A CH682195A5 (ru) | 1991-07-31 | 1991-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH682195A5 true CH682195A5 (ru) | 1993-07-30 |
Family
ID=4230320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH229091A CH682195A5 (ru) | 1991-07-31 | 1991-07-31 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH682195A5 (ru) |
| DE (1) | DE4219677C2 (ru) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032558A2 (en) * | 1994-05-24 | 1995-11-30 | Nokia Telecommunications Oy | A method for improving connection quality in a cellular radio system, and a base station |
| WO1999059263A1 (en) * | 1998-05-13 | 1999-11-18 | Samsung Electronics Co., Ltd. | Time-switched transmission diversity (tstd) device and controlling method thereof in mobile communication system |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19535358C1 (de) * | 1995-09-22 | 1997-03-06 | Siemens Ag | Verfahren und Schaltungsanordnung zur Verarbeitung von Nutzdaten |
| SE518016C2 (sv) * | 1995-11-10 | 2002-08-13 | Telia Ab | Metod och anordning för att minska fädning i mobilradiosystem |
| KR100433901B1 (ko) * | 1998-02-21 | 2004-11-06 | 삼성전자주식회사 | 이동통신시스템의시간스위칭송신다이버시티장치 |
| US6205127B1 (en) * | 1998-04-21 | 2001-03-20 | Lucent Technologies, Inc. | Wireless telecommunications system that mitigates the effect of multipath fading |
| EP0993706B1 (en) * | 1998-05-13 | 2008-04-16 | Samsung Electronics Co., Ltd. | Reception of both Time-Switched Transmission Diversity (TSTD) Signals and non-TSTD Signals |
| WO2000011876A2 (en) * | 1998-08-20 | 2000-03-02 | Samsung Electronics Co., Ltd. | Channel communication device and method for mobile communication system using transmission antenna diversity |
| US6704370B1 (en) * | 1998-10-09 | 2004-03-09 | Nortel Networks Limited | Interleaving methodology and apparatus for CDMA |
| US6853689B1 (en) | 1999-07-15 | 2005-02-08 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for channel estimation with transmit diversity |
| GB2387515A (en) | 2002-04-08 | 2003-10-15 | Ipwireless Inc | Mapping bits to at least two channels using two interleavers, one for systematic bits, and the other for parity bits |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1578469A (en) * | 1977-11-05 | 1980-11-05 | Marconi Co Ltd | Tropospheric scatter radio communications systems |
| JPH0338932A (ja) * | 1989-07-06 | 1991-02-20 | Oki Electric Ind Co Ltd | スペースダイバーシチ方式 |
-
1991
- 1991-07-31 CH CH229091A patent/CH682195A5/de not_active IP Right Cessation
-
1992
- 1992-06-16 DE DE19924219677 patent/DE4219677C2/de not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995032558A2 (en) * | 1994-05-24 | 1995-11-30 | Nokia Telecommunications Oy | A method for improving connection quality in a cellular radio system, and a base station |
| WO1995032558A3 (en) * | 1994-05-24 | 1995-12-28 | Nokia Telecommunications Oy | A method for improving connection quality in a cellular radio system, and a base station |
| AU693555B2 (en) * | 1994-05-24 | 1998-07-02 | Nokia Telecommunications Oy | A method for improving connection quality in a cellular radio system, and a base station |
| WO1999059263A1 (en) * | 1998-05-13 | 1999-11-18 | Samsung Electronics Co., Ltd. | Time-switched transmission diversity (tstd) device and controlling method thereof in mobile communication system |
| AU752782B2 (en) * | 1998-05-13 | 2002-10-03 | Samsung Electronics Co., Ltd. | Time-switched transmission diversity (TSTD) device and controlling method thereof in mobile communication system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4219677A1 (de) | 1993-02-04 |
| DE4219677C2 (de) | 2000-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |