公开(公告)号：US10932315B2

公开(公告)日：2021-02-23

申请号：US16290003

申请日：2019-03-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Goutham Ponnamreddy ,  Umasankar Ceendhralu Baskar ,  Naga Sreenivas Pydimarri ,  Pavan Kumar Devarayanigari ,  Diwakar Sharma

IPC: H04W4/00 ,  H04W76/18 ,  H04W36/00 ,  H04W76/30

Abstract: A method performed by a user equipment (UE) for establishing a call in a wireless communication network, the method includes determining a first call control (CC) state of the UE after a recovery procedure for a call establishment is performed, sending a CC status enquiry message to a first base station connected to a first network, determining a second CC state of the first base station from a CC status message received from the first base station in response to the CC status enquiry message, and establishing the call by updating the first CC state based on the determined second CC state.

公开(公告)号：US10912032B2

公开(公告)日：2021-02-02

申请号：US16793622

申请日：2020-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavan Kumar Devarayanigari ,  Nitesh Pushpak Shah ,  Prasad Basavaraj Dandra ,  Vijay Ganesh Surisetty

IPC: H04W52/02 ,  H04W48/20 ,  H04W84/04

Abstract: A method for connecting to a Registered Public Land Mobile Network (RPLMN) after receiving an accept message with limited service from a user selected CSG cell, which is associated to a different PLMN than the RPLMN during manual CSG selection mode is disclosed. The method includes connecting to the RPLMN based on the availability of the user selected CSG cell in UTRAN. If the user selected CSG cell is not available in UTRAN, then the method includes connecting to the RPLMN by the UE using the stored duplicate value of the RPLMN. If the user selected CSG cell is available in UTRAN, then the method includes sending an ATTACH request to the user selected CSG cell without disabling the EUTRA capabilities. If the ATTACH request is failed, then the method includes connecting to the RPLMN using the stored duplicate value of the RPLMN.

公开(公告)号：US10362529B2

公开(公告)日：2019-07-23

申请号：US14532451

申请日：2014-11-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Prakash Rao ,  Pavan Kumar Devarayanigari ,  Dandra Prasad Basavaraj ,  Srinivas Chinthalapudi ,  Vijay Ganesh Surisetty

IPC: H04W48/18 ,  H04W8/18 ,  H04W4/08 ,  H04W48/20

Abstract: The various embodiments herein provide a method and system for optimizing Closed Subscriber Group (CSG) selection in wireless communication. The method comprising steps of initiating, by a user equipment (UE), a manual CSG selection, verifying if a manual CSG selection request is new, storing a registered public land mobile network (RPLMN) and a corresponding public land mobile network (PLMN) Selection mode if the CSG selection request is new, changing a PLMN selection mode and the CSG selection mode to MANUAL, registering the UE on to a user selected CSG cell, storing one or more parameters associated with the user selected CSG cell if the registration is successful irrespective of CSG cell belonging to RPLMN or different PLMN and selecting the user selected CSG cell using a stored PLMN ID and a CSG ID combination in the current PLMN selection mode during power off and power on.

公开(公告)号：US10244577B2

公开(公告)日：2019-03-26

申请号：US15383319

申请日：2016-12-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavan Kumar Devarayanigari ,  Lalith Kumar ,  Diwakar Sharma ,  Suraj Kumar Singh

IPC: H04W76/28 ,  H04W52/02

Abstract: A method for managing an extended Discontinuous Reception (eDRX) in a User Equipment (UE) including determining, by the UE, as to whether an eDRX enablement avoidance criterion is met, and causing, by the UE, to stop sending a request message, which is configured to enable the eDRX, to a network entity when the eDRX enablement avoidance criterion is met. The eDRX enablement avoidance criterion may include one of a data transmission pattern, a historic eDRX usage pattern, whether a configurable retry timer is deactivated, whether a number attempts made to enable the eDRX exceeds a threshold, whether a number of attempts made to enable and disable the eDRX exceeds a threshold, whether a request accept message including an indication that eDRX is not supported, is received from the network entity, or whether an indication of no eDRX support is received from the network entity may be provided.

公开(公告)号：US20180049059A1

公开(公告)日：2018-02-15

申请号：US15368528

申请日：2016-12-02

Applicant: Samsung Electronics Co., Ltd

Inventor： Lalith Kumar ,  Kailash Kumar Jha ,  Pavan Kumar Devarayanigari ,  Samiran Bhowmik ,  Seshu Babu Songa ,  Ricky Kaura

IPC: H04W28/02 ,  H04W8/02

CPC classification number: H04W28/0289 ,  H04W8/02 ,  H04W48/18 ,  H04W60/04

Abstract: Embodiment herein achieves a method implemented in a mobile terminal. The method includes receiving a message from an entity in a network. Further, the method includes determining that a congestion timer T3246 is running, and performing one of stopping the timer 3246 and continuing the timer T3246. The method allows the UE to access the CS services when congestion at a MSC side is cleared.

公开(公告)号：US09826472B2

公开(公告)日：2017-11-21

申请号：US14719696

申请日：2015-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dandra Prasad Basavaraj ,  Pavan Kumar Devarayanigari ,  Srinivas Chinthalapudi ,  Vijay Ganesh Surisetty

IPC: H04W48/18 ,  H04W4/22

CPC classification number: H04W48/18 ,  H04W4/90 ,  H04W48/08

Abstract: An apparatus and a method of selecting Public Land Mobile Networks (PLMNs) in a manual PLMN selection mode are provided. The method includes selecting a PLMN as a network that the terminal will be attached to in a manual PLMN selection mode, storing the selected PLMN in a user selection PLMN list, and selecting, when the terminal attempts recovery to receive normal services in a limited service state, a PLMN to be attached to a network based on at least one PLMN included in the stored user selection PLMN list.

公开(公告)号：US09706447B2

公开(公告)日：2017-07-11

申请号：US14656114

申请日：2015-03-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Pavan Kumar Devarayanigari ,  Prasad Basavaraj Dandra ,  Vijay Ganesh Surisetty ,  Nitesh Pushpak Shah

IPC: H04W36/00 ,  H04W8/18 ,  H04W48/18

CPC classification number: H04W36/0022 ,  H04W8/186 ,  H04W48/18

Abstract: A method and an apparatus are provided for processing a Circuit-Switched (CS) call by User Equipment (UE) that is camped on a CSG cell, when a manually selected CSG cell is in a Public Land Mobile Network (PLMN), which is different from a Registered PLMN (RPLMN). The method includes registering, by the UE, with a manually selected Closed Subscriber Group (CSG) cell of a Public Land Mobile Network (PLMN), which is different from a Registered PLMN (RPLMN) of the UE; detecting the CS call; and processing the CS call in a non-CSG cell, when the manually selected CSG cell is unable to process the CS call.