Patent ID: 9094937
Filing Date: 2015-07-28
Classification: H04W

Abstract:
1. A method in a mobile user equipment (UE) of determining an average time for changing a currently selected multimedia broadcast and multicast service (MBMS) serving cell, comprising: collecting information comprising measurement of an average idle period between multicast control channel (MCCH) information bursts and measurement of an average time needed by the UE to read MCCH information, wherein the MCCH information including a master information block and a plurality of system information blocks of different types, based on a signal received by the UE, that is needed for determining the average time for changing the UE's currently selected MBMS serving cell, wherein the average time is respective to an operator of the UE's currently selected MBMS serving cell, and collecting information includes determining a moving average time needed by the UE to read a complete set of control data of the UE's currently selected operator's MBMS serving cell; and based on the collected information, computing a value of the moving average time of the operator for changing the UE's currently selected MBMS serving cell; and if the moving average time has not yet been computed, retrieving a predetermined change time value; wherein cell reselection is enabled when a signal received from another cell becomes a threshold amount better in signal quality than a signal received from a serving cell and after the UE waits for a certain predetermined time hysteresis in CELL_DCH to see whether the new candidate is stable.