Preamble design method for reducing overhead during handover in hierarchical cellular system
US8660563B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 16, 2008 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Sep 30, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Provided is a handover method of a wireless communication system using a hierarchical cellular scheme. In the method, signal quality of a serving node is measured, so that whether to start scanning for a handover is determined. When the scanning for the handover starts, signal qualities of a serving cell including the serving node and one or more neighbor cells are measured through a first preamble including a first identifier for distinguishing a cell. An intra-cell handover or an inter-cell handover is selected using the signal qualities of the serving cell and the neighbor cells. Therefore, a terminal can easily distinguish between the inter-cell handover and the intra-cell handover, and an overhead during a handover can be reduced because an intra-cell handover procedure is simplified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.