ZA200101603B - Method and device for a full-duplex radio transmission system with code division multiple access. - Google Patents
Method and device for a full-duplex radio transmission system with code division multiple access. Download PDFInfo
- Publication number
- ZA200101603B ZA200101603B ZA200101603A ZA200101603A ZA200101603B ZA 200101603 B ZA200101603 B ZA 200101603B ZA 200101603 A ZA200101603 A ZA 200101603A ZA 200101603 A ZA200101603 A ZA 200101603A ZA 200101603 B ZA200101603 B ZA 200101603B
- Authority
- ZA
- South Africa
- Prior art keywords
- base station
- radio base
- subscriber
- radio
- preamble
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title claims description 44
- 238000000034 method Methods 0.000 title claims description 26
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 238000011156 evaluation Methods 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- 238000012935 Averaging Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- WWVKQTNONPWVEL-UHFFFAOYSA-N caffeic acid phenethyl ester Natural products C1=C(O)C(O)=CC=C1C=CC(=O)OCC1=CC=CC=C1 WWVKQTNONPWVEL-UHFFFAOYSA-N 0.000 claims 2
- SWUARLUWKZWEBQ-UHFFFAOYSA-N phenylethyl ester of caffeic acid Natural products C1=C(O)C(O)=CC=C1C=CC(=O)OCCC1=CC=CC=C1 SWUARLUWKZWEBQ-UHFFFAOYSA-N 0.000 claims 2
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001427 coherent effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001484259 Lacuna Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
- H04W56/007—Open loop measurement
- H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
- H04W56/0085—Open loop measurement based on arrival time vs. expected arrival time detecting a given structure in the signal
-
- 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
-
- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
-
- 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
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/54—Circuits using the same frequency for two directions of communication
- H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70707—Efficiency-related aspects
- H04B2201/70709—Efficiency-related aspects with discontinuous detection
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998136888 DE19836888A1 (de) | 1998-08-14 | 1998-08-14 | Verfahren und Vorrichtung für ein voll duplexfähigesFunkübertragungssystem mit CDMA-Zugriff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200101603B true ZA200101603B (en) | 2001-07-13 |
Family
ID=7877537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200101603A ZA200101603B (en) | 1998-08-14 | 2001-02-27 | Method and device for a full-duplex radio transmission system with code division multiple access. |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1104595A1 (fr) |
| CN (1) | CN1311925A (fr) |
| AR (1) | AR025262A1 (fr) |
| AU (1) | AU749693B2 (fr) |
| CA (1) | CA2340644A1 (fr) |
| DE (1) | DE19836888A1 (fr) |
| WO (1) | WO2000010258A1 (fr) |
| ZA (1) | ZA200101603B (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10056086C2 (de) * | 2000-11-07 | 2002-12-05 | Iq Wireless Gmbh | Verfahren für die Synchronisation in einem Funkkommunikationssystem |
| DE10126831B4 (de) * | 2001-06-01 | 2007-08-02 | Rohde & Schwarz Gmbh & Co Kg | Verfahren zum Bestimmen des Zeitversatzes zwischen einem Trigger-Signal und der Pilotsequenz eines CDMA-Hochfrequenzsignals |
| US6944142B2 (en) * | 2003-05-13 | 2005-09-13 | Interdigital Technology Corporation | Method for soft and softer handover in time division duplex code division multiple access (TDD-CDMA) networks |
| CN106301465A (zh) * | 2015-05-29 | 2017-01-04 | 中国移动通信集团公司 | 一种消除同频全双工系统自干扰的方法及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5333402B2 (fr) * | 1974-07-05 | 1978-09-13 | ||
| ATE75892T1 (de) * | 1986-08-14 | 1992-05-15 | Standard Elektrik Lorenz Ag | Digitales zellenfunksystem. |
| DE3743732C2 (de) * | 1987-12-23 | 1994-12-01 | Ant Nachrichtentech | Verfahren zur Synchronisierung eines Codewortes mit einem empfangenen spektral gespreizten Signal |
| US5164958A (en) * | 1991-05-22 | 1992-11-17 | Cylink Corporation | Spread spectrum cellular handoff method |
| JP3142222B2 (ja) * | 1994-08-22 | 2001-03-07 | 松下電器産業株式会社 | スペクトル拡散通信同期方法とその回路装置 |
| CA2223321A1 (fr) * | 1995-06-05 | 1996-12-12 | Omnipoint Corporation | Commande de reglage de synchronisation servant a realiser des telecommunications en duplex a repartition dans le temps |
| DE19533507C2 (de) * | 1995-09-04 | 1997-10-02 | Hartmut Dipl Ing Neus | Multiplex-, Zugriffs- und Duplexverfahren für ein zellulares Funksystem |
| JPH09307951A (ja) * | 1996-03-15 | 1997-11-28 | Matsushita Electric Ind Co Ltd | スペクトル拡散通信装置 |
| US6259724B1 (en) * | 1996-10-18 | 2001-07-10 | Telefonaktiebolaget L M Ericsson (Publ) | Random access in a mobile telecommunications system |
| JP3373746B2 (ja) * | 1997-01-07 | 2003-02-04 | 株式会社鷹山 | Ｄｓ−ｃｄｍａ基地局間非同期セルラ方式における初期同期方法および受信機 |
-
1998
- 1998-08-14 DE DE1998136888 patent/DE19836888A1/de not_active Withdrawn
-
1999
- 1999-08-03 EP EP99944327A patent/EP1104595A1/fr not_active Withdrawn
- 1999-08-03 CN CN 99809262 patent/CN1311925A/zh active Pending
- 1999-08-03 WO PCT/EP1999/005619 patent/WO2000010258A1/fr not_active Application Discontinuation
- 1999-08-03 AU AU57305/99A patent/AU749693B2/en not_active Ceased
- 1999-08-03 CA CA002340644A patent/CA2340644A1/fr not_active Abandoned
- 1999-08-12 AR ARP990104037 patent/AR025262A1/es unknown
-
2001
- 2001-02-27 ZA ZA200101603A patent/ZA200101603B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1311925A (zh) | 2001-09-05 |
| CA2340644A1 (fr) | 2000-02-24 |
| AR025262A1 (es) | 2002-11-20 |
| WO2000010258A1 (fr) | 2000-02-24 |
| DE19836888A1 (de) | 2000-02-24 |
| AU749693B2 (en) | 2002-07-04 |
| AU5730599A (en) | 2000-03-06 |
| EP1104595A1 (fr) | 2001-06-06 |
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