Patent ID: 8644252
Filing Date: 2014-02-04
Classification: H04W

Abstract:
1. A method performed in a cellular radio communications network having a plurality of cells and at least one user equipment (UE), said network comprising at least one network unit configured to provide a high-speed downlink shared channel (HS-DSCH) to said at least one UE in said cells, said method comprising: providing an uplink channel to the UE, the uplink channel comprising a dedicated channel (DCH) or an enhanced dedicated channel (E-DCH); thereafter detecting, in said network unit, a failed transmission of a handover command sent by a HS-DSCH serving cell to a UE transmitted on said HS-DSCH, wherein the uplink channel is still available to the UE; receiving, in said network unit, a radio resource control (RRC) message transmitted on the still available uplink channel from said UE via a different cell, wherein the RRC message indicates a loss of said HS-DSCH serving cell and a strongest downlink cell perceived by said UE; initiating a new HS-DSCH serving cell re-establishment procedure to said strongest downlink cell indicated in said RRC message; and transmitting a RRC reconfiguration message from said network unit to said UE; wherein the detecting comprises: