Patent ID: 8953555
Filing Date: 2015-02-10
Classification: H04W

Abstract:
1. A cell reselection method for a packet data service in a mobile communication terminal, the method comprising: receiving packet service over an accessible Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN) cell; recognizing a Circuit Switch (CS) call issued for the mobile communication terminal upon receiving a CS paging message while receiving the packet service; and handing over the CS call to a neighboring UTRAN/Global Evolution (EDGE) Radio Access Network (GERAN) cell through a CS fallback procedure, wherein when the CS call ends, determining whether the ended call is a CS fallback call; and wherein in response to determining that the ended call is the CS fallback call, determining whether an accessible E-UTRAN cell exists by measuring signals received from neighbor cells; and reselecting the accessible E-UTRAN cell, wherein in response to determining that the ended call is not the CS fallback call, camping on the neighboring UTRAN/GERAN cell and entering an idle mode.