发明名称 Mobile device storing information about a first PLMN before undergoing circuit switched fall back to a second PLMN to enable later reconnection to first PLMN
摘要 A wireless device is arranged to switch the radio access technology it is using, e.g. switch from packets over LTE to a circuit switched 2G network for a voice call, such as is done with Circuit Switched Fallback (CSFB) 300. The wireless device disconnects from E-UTRAN (LTE) and stores information about the first PLMN in the mobile device USIM and at least attempts to connect to use UMTS or GSM circuit switched technology (310). It is determined that the wireless device should revert to using the first radio access technology, LTE (320). At expiry of a predetermined period of time (which may be zero) after the determining, the wireless device is caused to cease using or attempting to use the 2G access technology and to revert to using the first radio access technology, using the stored PLMN to do so. (330,340)
申请公布号 GB2496611(A) 申请公布日期 2013.05.22
申请号 GB20110019708 申请日期 2011.11.15
申请人 RENESAS MOBILE CORPORATION 发明人 MATTI MOISANEN;SAMULI HEIKKINEN
分类号 H04W36/00;H04W36/14 主分类号 H04W36/00
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