Method for performing measurements for handoff of a mobile unit operating with a switched beam antenna in a wireless communication system, and corresponding system
US7764957B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2007 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Dec 5, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W36/185
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Measurements for handoff are made by a wireless transmit/receive unit (WTRU) operating with a switched beam antenna in a wireless communication system. The switched beam antenna is a smart antenna generating a plurality of directional beams and an omni-directional beam. The WTRU measures signals from a plurality of cells with the omni-directional beam and/or one or more of the directional beams. The WTRU evaluates and reports to the network measurement of the omni-directional beam or the strongest beam for adding cells to an active set of cells. For removing cells from an active set of cells, the WTRU evaluates and reports to the network measurements of the antenna beam selected for communication with the active set cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.