Cellular communication system with soft handover and apparatus therefor
Abstract
When a mobile station enters a soft handover state, a monitor monitors reception quality of downward signals from plural base stations that are in the soft handover state. A base-station selector compares the reception quality of downward signals from respective base stations monitored at the monitor and generates a base-station specify signal which specifies at least one base station to maintain a signal transmission. A transmitter sends the base-station specify signal to at least one base station, among the plural base stations, that is specified by the base station specify signal and to at least one base station, among the plural base stations, that is not specified by the base-station specify signal.

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Projected expiry passed 4 June 2018, 8.3 years ago.
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1 sheet
Sheet 1
Every citation, both waysCites: the store holds 4 of 5
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP0756391A1 | Cites | European Patent Office (EPO) | A | Search report | – |
| GB2280088A | Cites | United Kingdom | A | Search report | – |
| US5267261A | Cites | United States of America | A | Search report | – |
| WO9708911A1 | Cites | World Intellectual Property Organization (WIPO) | X | Search report | 1-19 |
| MCTIFFIN M J ET AL: "MOBILE ACCESS TO AN ATM NETWORK USING A CDMA AIR INTERFACE", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, IEEE INC. NEW YORK, US, vol. 12, no. 5, 1 June 1994 (1994-06-01), pages 900 - 908, XP000464975, ISSN: 0733-8716 | Non-patent | – | – | Search report | – |
15 members in 4 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 15107297 | Japan | A | |
| 15107297 | Japan | A | |
| 15107297 | Japan | – | |
| 98110166 | European Patent Office (EPO) | A | |
| 98110166 | European Patent Office (EPO) | A | |
| 15107297 | – | – | – |
| 98110166 | – | – | – |
| EP19980110166 | – | – | – |
| JP19970151072 | – | – | – |
Members15
| Document | Office | Kind | |
|---|---|---|---|
| EP0884918A2 | European Patent Office (EPO) | A2 | |
| KR19990006977A | Republic of Korea | A | |
| JPH1169416A | Japan | A | |
| JP2991185B2 | Japan | B2 | |
| EP0884918A3 | European Patent Office (EPO) | A3 | |
| US6141555A | United States of America | A | |
| KR100362074B1 | Republic of Korea | B1 | |
| US2004229617A1 | United States of America | A1 | |
| EP1511343A2 | European Patent Office (EPO) | A2 | |
| EP1511344A2 | European Patent Office (EPO) | A2 | |
| EP1511343A3 | European Patent Office (EPO) | A3 | |
| EP1511344A3This record | European Patent Office (EPO) | A3 | |
| USRE39735E | United States of America | E | |
| USRE41891E | United States of America | E | |
| EP0884918B1 | European Patent Office (EPO) | B1 |
10 legal events, as the office reported them to INPADOC
Over the term
Point at a mark for the eventEvents
| Event | Code | |
|---|---|---|
| Application withdrawnWithdrawn18W | 18W | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN WITHDRAWNSTAA | STAA | |
| Designation fees paidAKX | AKX | |
| Request for examination filed17P | 17P | |
| Information on inventor provided before grant (corrected)RIN1 | RIN1 | |
| Designated contracting statesAK | AK | |
| Divisional application: reference to earlier applicationAC | AC | |
| Designated contracting statesAK | AK | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1511344
- Publication, DOCDB
- 1511344
- Publication, EPODOC
- EP1511344
- Application
- 4023369
- Application, DOCDB
- 04023369
- Application, EPODOC
- EP20040023369
Titles3
- German
- Zellulares Kommunikationssystem mit weichem weiterreichen und Enrichtungen dafür
- English
- Cellular communication system with soft handover and apparatus therefor
- French
- Réseau de communication cellulaire avec communication douce et appareils correspondants
Classification
- CPC, 5
- H04W48/12
- H04W36/185
- H04W36/304
- H04W36/083
- Y02D30/70
- IPC, 2
- H04W36 18
- H04W48 12
Designated states1
- Contracting states, 1
- Italy