Handover method for next generation mobile communication system having overlapping area
US7353029B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 8, 2005 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jul 8, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed is a handover method for an IP-based next generation mobile communication system. With a handover method including 1) determining whether or not a predetermined mobile terminal goes into the overlapping area; 2) starting a Layer 3 (L3) handover operation between the neighboring access routers as the mobile terminal goes into the overlapping area; 3) if the Layer 3 handover operation between the neighboring access routers is completed, establishing a data path for the mobile terminal to pass through an access router after the Layer 3 handover; 4) if the mobile terminal leaves a cell area including the mobile terminal in steps 2) and 3), performing by the mobile terminal Layer 2 handover between cells and receiving by the mobile terminal data through a cell base station after the Layer 2 handover and an access router before the Layer 3 handover; and 5) if the mobile terminal leaves a cell area including the mobile terminal after step 3), performing by the mobile terminal Layer 2 handover between cells and receiving by the mobile terminal data through a cell base station after the Layer 2 handover and an access router after the Layer 3 handover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.