System and method for performing handover in a broadband wireless access communication system
Abstract
Disclosed is a system and a method for controlling a handover of a mobile subscriber station in a broadband wireless access communication system. When serving base station determines to perform a handover of the mobile subscriber station, neighbor base stations to which the mobile subscriber station can be handed over, from among neighbor base stations of the mobile subscriber station, are determined based on a service quality level of service being currently provided to the mobile subscriber station. A handover request signal containing information related to the determined neighbor base station to which the mobile subscriber station can be handed over is transmitted to the mobile subscriber station. The serving base station receives from the mobile subscriber station in response to the request of the handover information about one neighbor base station to which the mobile subscriber station will be handed over, and informs the neighbor base station that the mobile subscriber station will be handed over to the neighbor base station.

Term
Term ended
Projected expiry passed 8 November 2024, 1.9 years ago.
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1 sheet
Sheet 1
Every citation, both waysCites: the store holds 2 of 3
| Document | Relation | Office | Category | Cited during | Relevant claims |
|---|---|---|---|---|---|
| EP0888026A2 | Cites | European Patent Office (EPO) | Y | Search report | 1-27 |
| US2003013443A1 | Cites | United States of America | A | Search report | 1-27 |
| CHANGHOI KOO, JUNGJE SON: "Enhancements of BS Initiated Handoff Algorithm for 802.16e", IEEE 802.16 BROADBAND WIRELESS ACCESS WORKING GROUP, 7 November 2003 (2003-11-07), pages 0 - 4, XP002334168, Retrieved from the Internet <URL:http://www.ieee802.org/16/tge/contrib/C80216e-03_68.pdf> [retrieved on 20050627] | Non-patent | – | – | Search report | – |
| SOHYUN KIM, JUNGJE SON, CHANGHOI KOO: "Overall HO procedures for IEEE 802.16", IEEE 802.16 BROADBAND WIRELESS ACCESS WORKING GROUP, 4 September 2003 (2003-09-04), pages 0 - 15, XP002334169, Retrieved from the Internet <URL:http://www.ieee802.org/16/tge/contrib/C80216e-03_47.pdf> [retrieved on 20050623] | Non-patent | – | – | Search report | – |
25 members in 9 offices
Priority claims5
| Document | Office | Kind | Date |
|---|---|---|---|
| 20030078820 | Republic of Korea | A | |
| 20030078820 | Republic of Korea | A | |
| 2003078820 | Republic of Korea | – | |
| 2003078820 | – | – | – |
| KR20030078820 | – | – | – |
Members25
| Document | Office | Kind | |
|---|---|---|---|
| EP1530385A2 | European Patent Office (EPO) | A2 | |
| KR20050044220A | Republic of Korea | A | |
| US2005101328A1 | United States of America | A1 | |
| AU2004307907A1 | Australia | A1 | |
| CA2540865A1 | Canada | A1 | |
| WO2005046090A1 | World Intellectual Property Organization (WIPO) | A1 | |
| EP1530385A3This record | European Patent Office (EPO) | A3 | |
| KR100651430B1 | Republic of Korea | B1 | |
| CN1871796A | China | A | |
| JP2007509527A | Japan | A | |
| RU2006119917A | Russian Federation | A | |
| US2008159235A1 | United States of America | A1 | |
| AU2004307907B2 | Australia | B2 | |
| RU2333604C2 | Russian Federation | C2 | |
| US7570618B2 | United States of America | B2 | |
| JP4459232B2 | Japan | B2 | |
| EP2187689A1 | European Patent Office (EPO) | A1 | |
| CN1871796B | China | B | |
| CN101801050A | China | A | |
| US2011176515A1 | United States of America | A1 | |
| US8077673B2 | United States of America | B2 | |
| US8160026B2 | United States of America | B2 | |
| CA2540865C | Canada | C | |
| CN101801050B | China | B | |
| EP2187689B1 | 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 refused18R | 18R | |
| Information on the status of an ep patent application or granted ep patentGrantedSTATUS: THE APPLICATION HAS BEEN REFUSEDSTAA | STAA | |
| Designation fees paidAKX | AKX | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Search report despatchedORIGINAL CODE: 0009013PUAL | PUAL | |
| Request for examination filed17P | 17P | |
| Designated contracting statesAK | AK | |
| Request for extension of the european patentAX | AX | |
| Public reference made under article 153(3) epc to a published international application that has entered the european phaseORIGINAL CODE: 0009012PUAI | PUAI |
Numbers
- Publication
- 1530385
- Publication, DOCDB
- 1530385
- Publication, EPODOC
- EP1530385
- Application
- 4026475
- Application, DOCDB
- 04026475
- Application, EPODOC
- EP20040026475
Titles3
- German
- System und Verfahren zum Weiterreichen in einem drahtlosen Zugangsnetz
- English
- System and method for performing handover in a broadband wireless access communication system
- French
- Système et procédé pour le transfert d'appels dans un système d'accès de communication sans fil à large bande
Classification
- CPC, 5
- H04W36/26
- H04W36/0085
- H04W36/08
- H04W36/22
- H04W36/304
- IPC, 6
- H04B7 26
- H04L45 851
- H04W36 08
- H04W36 26
- H04W36 38
- H04W40 34
Designated states2
- Contracting states, 1
- Türkiye
- Extension states, 1
- Yugoslavia, later Serbia and Montenegro (until 2006)