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1. (WO2015044806) CONTROLLING HANDOVER OF A HIGH-PRIORITY USER EQUIPMENT OPERATING NEAR A CELL EDGE

Pub. No.:    WO/2015/044806    International Application No.:    PCT/IB2014/064076
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Wed Aug 27 01:59:59 CEST 2014
IPC: H04W 36/26
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: BAWASKAR, Namita
Title: CONTROLLING HANDOVER OF A HIGH-PRIORITY USER EQUIPMENT OPERATING NEAR A CELL EDGE
Abstract:
A method and apparatus in an e NodeB (31) for controlling handover of a User Equipment, UE, (11) operating near a cell edge of a serving cell. The apparatus determines whether the UE has a Quality of Service, Qo S, Class Identifier, QCI, level defined for utilizing a Channel Quality Indication, CQI, Threshold parameter (12) that is set at a level greater than a CQI handover level (a5) used to initiate handover of the UE to a neighbor cell. If not, the normal CQI handover level (a5) is utilized. If so, the apparatus monitors UE CQI reports to determine when the CQI of the UE, UEcqi, in the serving cell is lower than the CQI Threshold (12) and greater than the CQI handover level (a5). When this condition is met, the apparatus forces a handover of the UE from the serving cell to the neighbor cell. The CQI Threshold parameter (12) may be set at a level that also ensures the UEcqi for the serving cell is lower than the UEcqi for the neighbor cell when the forced handover is performed.