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191.
公开(公告)号:US20190098516A1
公开(公告)日:2019-03-28
申请号:US16199068
申请日:2018-11-23
Applicant: Samsung Electronics Co., Ltd.
Inventor: Danish Ehsan HASHMI , Lalith KUMAR , Kailash Kumar JHA , Jayashankara Dalagowdanahalli MALLESHAPPA , Suraj Kumar SINGH , Sunghoon KIM
Abstract: A method in a mobile station (MS) and an MS in a wireless communication network are provided. The method includes detecting an intersystem change from an S1 mode to one of an A/Gb mode and an Iu mode, detecting that a routing area update (RAU) has failed detecting that a successful generic location updating procedure has not been performed since the detected intersystem change, and triggering an MM specific procedure based on detecting that the RAU has failed and the successful generic location updating procedure has not been performed. The MM specific procedure corresponds to a location area update (LAU).
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公开(公告)号:US20180139661A1
公开(公告)日:2018-05-17
申请号:US15574423
申请日:2016-05-13
Applicant: Samsung Electronics Co., Ltd.
Inventor: Lalith KUMAR , Bharat Vinayak BHAT , Prasad Basavaraj DANDRA , Ricky KAURA , Krishnamurthy Doddaballapur RAMU
CPC classification number: H04W36/0022 , H04W8/06 , H04W8/22 , H04W36/14 , H04W48/18 , H04W76/19 , H04W88/06
Abstract: A method of managing evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN) capability of a user equipment (UE) is provided that includes switching from a first radio access technology (RAT) to a second RAT if the first RAT fails to provide circuit switched (CS) services to the UE, the first RAT and the second RAT being associated with a first public landline mobile network (PLMN). The UE establishes a CS call session with the second RAT. In the meanwhile, the UE receives a network handover command to move to a second PLMN. The UE may also perform a movement from the first PLMN to the second PLMN and connect with a third RAT associated with the second PLMN to continue the CS call session. The UE enables the E-UTRAN capability after moving to the second PLMN to connect with a fourth RAT available in the second PLMN.
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