EP1592178A3
Interoperability between different wireless LAN systems
Abstract
A high-throughput (HT) wireless LAN system capable of avoiding a collision of packets and maintaining the original transmission speed is provided. A transmitter is applied to an HT terminal (HTAP) using a second frequency band wider than a first frequency band used by a legacy terminal (legacy AP), in which an HT sequence is started after a legacy beacon as an occupation signal and a legacy CTS are transmitted using every frequency in the second frequency band. Due to this, an NAV is set at the legacy terminal and packets are no longer transmitted from the legacy terminal. As a result, a collision of packets is avoided and it becomes possible to perform communication between HT terminals at the original transmission speed.
Term
Term ended
Projected expiry passed 27 April 2025, 1.4 years ago.
- Priority
- Filed
- Published
- Projected expiry
- Today
1 sheet
Sheet 1
Every citation, both ways
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| WO03061196A2 | Cites | World Intellectual Property Organization (WIPO) | X | Search report | 1-16 |
| EP1207654A2 | Cites | European Patent Office (EPO) | X | Search report | 1-16 |
| US2002181426A1 | Cites | United States of America | X | Search report | 1-16 |
11 members in 3 offices; this record represents the family
Priority claims4
| Document | Office | Kind | Date |
|---|---|---|---|
| 2004136102 | Japan | A | |
| 2004136102 | Japan | – | |
| 2004136102 | – | – | – |
| JP20040136102 | – | – | – |
Members11
| Document | Office | Kind | |
|---|---|---|---|
| EP1592178A2 | European Patent Office (EPO) | A2 | |
| US2005243843A1 | United States of America | A1 | |
| JP2005341532A | Japan | A | |
| JP2005341557A | Japan | A | |
| EP1592178A3This record | European Patent Office (EPO) | A3 | |
| US7561510B2 | United States of America | B2 | |
| JP2011015443A | Japan | A | |
| EP1592178B1 | European Patent Office (EPO) | B1 | |
| JP4861637B2 | Japan | B2 | |
| EP1592178B8 | European Patent Office (EPO) | B8 | |
| JP5073036B2 | Japan | B2 |
36 legal events, as 4 offices reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | Office | |
|---|---|---|---|
| Lapsed in a contracting state [announced via postgrant information from national office to epo]LapsedPG25 | PG25 | EP | |
| Patent expired after termination of 20 yearsExpiredPE20 | PE20 | GB | |
| Expiry of rightR071 | R071 | DE | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Annual fee paid to national office [announced via postgrant information from national office to epo]GrantedPGFP | PGFP | EP | |
| Fee paymentPLFP | PLFP | FR | |
| Fee paymentPLFP | PLFP | FR | |
| Fee paymentPLFP | PLFP | FR | |
| No opposition filed (corrected)OppositionR26N | R26N | EP | |
| Information on inventor provided after grant (corrected)RIN2 | RIN2 | EP | |
| Information on inventor provided after grant (corrected)RIN2 | RIN2 | EP | |
| No opposition filed against granted patent, or epo opposition proceedings concluded without decisionGrantedR097 | R097 | DE | |
| Information modified related to event that no opposition was filedOppositionORIGINAL CODE: 0009299DELTPLAA | PLAA | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: NO OPPOSITION FILED WITHIN TIME LIMITSTAA | STAA | EP | |
| No opposition filedOpposition26N | 26N | EP | |
| No opposition filed within time limitOppositionORIGINAL CODE: 0009261PLBE | PLBE | EP | |
| Dpma publication of mentioned ep patent grantGrantedR096 | R096 | DE | |
| Designated contracting statesAK | AK | EP | |
| European patent grantedGrantedFG4D | FG4D | GB | |
| (expected) grantORIGINAL CODE: 0009210GRAA | GRAA | EP | |
| Grant fee paidORIGINAL CODE: EPIDOSNIGR3GRAS | GRAS | EP | |
| Despatch of communication of intention to grant a patentORIGINAL CODE: EPIDOSNIGR1GRAP | GRAP | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Information provided on ipc code assigned before grantRIC1 | RIC1 | EP | |
| Designation fees paidAKX | AKX | EP | |
| First examination report despatched17Q | 17Q | EP | |
| Request for examination filed17P | 17P | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | EP | |
| Designated contracting statesAK | AK | EP | |
| Request for extension of the european patentAX | AX | EP | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI | EP |
Numbers
- Publication
- 1592178
- Publication, DOCDB
- 1592178
- Publication, EPODOC
- EP1592178
- Application
- 5252636
- Application, DOCDB
- 05252636
- Application, EPODOC
- EP20050252636
Titles3
- German
- Interoperabilität zwischen unterschiedlichen drahtlosen LAN Systemen
- English
- Interoperability between different wireless LAN systems
- French
- Interopérabilité entre des différents systèmes de réseaux locaux sans fil
Classification
- CPC, 3
- H04W16/14
- H04W74/04
- H04W84/12
- IPC, 4
- H04L12 28
- H04W16 14
- H04W74 04
- H04W84 12
Designated states2
- Contracting states, 1
- Türkiye
- Extension states, 1
- Yugoslavia, later Serbia and Montenegro (until 2006)