公开(公告)号：US11012870B2

公开(公告)日：2021-05-18

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

IPC: H04W24/02 ,  H04W60/04

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).

公开(公告)号：US10405245B2

公开(公告)日：2019-09-03

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

IPC: H04W36/00 ,  H04W36/14 ,  H04W8/06 ,  H04W8/22 ,  H04W76/19 ,  H04W88/06 ,  H04W48/18

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.

公开(公告)号：US10171952B2

公开(公告)日：2019-01-01

申请号：US15343845

申请日：2016-11-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Lalith Kumar ,  Naga Rajesh Adda ,  Pavan Kumar Devarayanigari

IPC: H04W4/02 ,  H04W4/04

Abstract: A method of a terminal and the terminal are provided. The method includes detecting a location area change when a congestion timer is running and one of a general packet radio service (GPRS) update status indicating “GU1 UPDATED,” a mobility management (MM) update status indicating “U1 UPDATED,” and an evolved packet system “EPS” update status indicating “EU1 UPDATED” is indicated; adaptively changing the GPRS update status to “GU2 NOT UPDATED,” the MM update status to “U2 NOT UPDATED,” and the EPS update status to “EU2 NOT UPDATED”; and entering a state of “GMM-REGISTERED.ATTEMPTING-TO-UPDATE,” “MM IDLE, ATTEMPTING TO UPDATE,” or “EMM-REGISTERED.ATTEMPTING-TO-UPDATE,” in accordance with one of “GU2 NOT UPDATED,” “U2 NOT UPDATED,” and “EU2 NOT UPDATED.”

公开(公告)号：US10142856B2

公开(公告)日：2018-11-27

申请号：US14952435

申请日：2015-11-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Danish Ehsan Hashmi ,  Lalith Kumar ,  Kailash Kumar Jha ,  Jayashankara Dalagowdanahalli Malleshappa ,  Suraj Kumar Singh ,  Sunghoon Kim

IPC: H04W60/04 ,  H04W24/02

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 S1mode 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).