Handover using dedicated resources reserved for a limited time interval
US8380196B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2008 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Jun 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W28/26
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and arrangement for handover wherein the handover resource (the dedicated random access preamble) is reserved by the target radio base station (RBS) for a limited period of time, thus increasing the handover efficiency and thereby allowing random access preambles to be used for initial access to a larger extent. The information about the reserved time interval is sent to the UE in the handover command message by means of a frame number offset between the source RBS and the target RBS. The UE uses the information to calculate when to send its synchronization message to the target RBS. The frame number offset is calculated either by source RBS or by target RBS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.