Handover using dedicated resources reserved for a limited time interval

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 acce...

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Bibliographic Details
Main Authors LINDSTROEM MAGNUS, RACZ ANDRAS, MILDH GUNNAR, BERGSTROEM JOAKIM
Format Patent
LanguageEnglish
Published 19.02.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary: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.
Bibliography:Application Number: US20080597839