公开(公告)号：US20170134994A1

公开(公告)日：2017-05-11

申请号：US15278763

申请日：2016-09-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Srinivas CHINTHALAPUDI ,  Prasad Basavaraj DANDRA

IPC: H04W36/00 ,  H04W68/02 ,  H04W24/02

CPC classification number: H04W36/0022 ,  H04L29/06 ,  H04L65/1069 ,  H04L65/1089 ,  H04L69/24 ,  H04W76/18 ,  H04W80/04

Abstract: Methods and apparatuses are provided for handling Internet protocol (IP) multimedia subsystem (IMS) and circuit switch fall back (CSFB) calls at a user equipment (UE) in a wireless network. A non-access stratum (NAS) of the UE receives an IMS indication when an IMS call is initiated at the UE. The NAS determines a state of the UE. The NAS performs an action based on the state of the UE to trigger one of the IMS call and a CSFB call.

公开(公告)号：US20220337636A1

公开(公告)日：2022-10-20

申请号：US17720600

申请日：2022-04-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dongku HAN ,  Kedar Santosh Kumar AALLA ,  Jaya Prakash SIVAPURAM ,  Shrihari Shridhar HEGDE ,  Srinivas CHINTHALAPUDI ,  Jiyoung YU ,  Bora HYUN ,  Thejeswara Reddy POCHA ,  Taeyun AN ,  Junghoon LEE ,  Jaesang LIM ,  Jinsu JEONG

IPC: H04L65/1069 ,  H04W72/04

Abstract: A wireless communication method supporting a Rich Communication Suite (RCS) service, the method including performing an RCS provision operation corresponding to an Original Equipment Manufacturer (OEM) application in response to an RCS service request of the OEM application, transmitting an RCS function connection request to a Session Initiation Protocol (SIP) transport layer after the RCS provision operation is completed, controlling a session for an RCS function based on the RCS function connection request to obtain a dedicated bearer, and exchanging RCS media data with a network through the dedicated bearer.

公开(公告)号：US20180070402A1

公开(公告)日：2018-03-08

申请号：US15466096

申请日：2017-03-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Srinivas CHINTHALAPUDI ,  Prasad Basavaraj DANDRA ,  Manan DIXIT ,  Kedar Santosh Kumar AALLA

IPC: H04W76/04 ,  H04L29/06 ,  H04W76/06 ,  H04W24/04

CPC classification number: H04W76/25 ,  H04L65/1016 ,  H04L65/1073 ,  H04L65/1083 ,  H04L65/80 ,  H04W76/27 ,  H04W76/38

Abstract: Methods and User Equipment (UE) for managing IMS call over LTE in SRVCC area are provided. The method may include detecting, by an IMS client, that the IMS call over LTE is in an alert state, and a Radio Resource Control (RRC) reconfiguration cells are configured for the IMS call over LTE. Further, the method may include initiating by the IMS client a timer with a value less than a data inactivity timer value from a network entity. Further, the method may include detecting by IMS client that the timer has expired before establishing the IMS call over LTE and restarting by the IMS client the timer. Furthermore, the method may include sending by the IMS client a Session Initiation Protocol (SIP) message to the network entity.

公开(公告)号：US20160316512A1

公开(公告)日：2016-10-27

申请号：US15198525

申请日：2016-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Prasad Basavaraj DANDRA ,  Vijay Ganesh SURISETTY ,  Akshay RASTOGI ,  Srinivas CHINTHALAPUDI

IPC: H04W76/04 ,  H04W60/04 ,  H04L29/06 ,  H04W64/00 ,  H04M15/00 ,  H04W8/08 ,  H04W60/06

CPC classification number: H04L69/28 ,  H04M15/751 ,  H04M15/8214 ,  H04M2207/187 ,  H04W4/24 ,  H04W8/22 ,  H04W48/18 ,  H04W76/18 ,  H04W88/06

Abstract: A method for handling an ATTACH reject message with packet radio service mobility management reject cause number (#14 cause) at a user equipment (UE) is provided. The method includes receiving, at the UE, an ATTACH accept message for a network service on a public land mobile network (PLMN) from a first network entity, wherein the PLMN is in a “forbidden PLMNs for general packet radio service (GPRS) service” list, detecting, by the UE, that the UE's evolved universal terrestrial radio access (E-UTRA) capability is disabled, and enabling, by the UE, the UE's E-UTRA capability and removing the PLMN from the “forbidden PLMNs for GPRS service” list.

Abstract translation: 提供了一种用于处理具有分组无线业务移动性管理的拒绝ATTACH拒绝消息的拒绝原因号码（＃14原因）在用户设备（UE）的方法。 该方法包括：从第一网络实体接收在公用陆地移动网络（PLMN）处的UE处的用于网络服务的ATTACH接收消息，其中，所述PLMN处于用于通用分组无线业务（GPRS）业务的禁止PLMN “列表，由UE检测到UE的演进的通用地面无线电接入（E-UTRA）能力被禁用，并且由UE启用UE的E-UTRA能力并且从”禁止的PLMN用于GPRS 服务“列表。

公开(公告)号：US20250089106A1

公开(公告)日：2025-03-13

申请号：US18827075

申请日：2024-09-06

Applicant: SAMSUNG ELECTRONICS CO, LTD.

Inventor： Srinivas CHINTHALAPUDI ,  Jaya Prakash SIVAPURAM ,  Varun Bharadwaj SANTHEBENUR VASUDEVAMURTHY ,  Sandeep C M

IPC: H04W76/10 ,  H04L65/1016 ,  H04L65/1045 ,  H04W24/08

Abstract: A method of establishing Internet protocol (IP) multimedia subsystem (IMS) sessions at a mobile originating (MO) device includes establishing, with a mobile terminating (MT) device, a first IMS session over a first network, determining that the MO device failed to receive a response from the first network within a predefined time period after the establishing of the first IMS session, establishing, with the MT device, a second IMS session over a second network, based on the determining that the MO device failed to receive the response from the first network, terminating, based on a content of a dedicated bearer, at least one of the first IMS session or the second IMS session, and communicating with the MT device over a remaining IMS session from the at least one of the first IMS session or the second IMS session.

公开(公告)号：US20160242138A1

公开(公告)日：2016-08-18

申请号：US15026477

申请日：2014-04-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dandra Prasad BASAVARAJ ,  Pavan Kumar DEVARAYANIGARI ,  Jaya PRAKASH ,  Nitesh Pushpak SHAH ,  Prakash RAO ,  Srinivas CHINTHALAPUDI ,  Vijay Ganesh SURISETTY

IPC: H04W60/04 ,  H04W4/08 ,  H04W8/08 ,  H04W48/18

CPC classification number: H04W60/04 ,  H04W4/08 ,  H04W8/082 ,  H04W8/18 ,  H04W48/18 ,  H04W48/20 ,  H04W84/045

Abstract: A method and system for enabling a User Equipment (UE) to quickly recover back to normal service on failure of registration attempt to a selected Closed Subscriber Group (CSG) cell or loss of coverage of the selected CSG cell is provided. The method provides a UE behavior during manual CSG selection mode when the selected CSG cell is associated with a different Public Land Mobile Network (PLMN) than the Registered PLMN (RPLMN) of the UE. The method also defines the UE actions to handle a user request to change a current Public Land Mobile Network (PLMN) selection mode and handle expiry of a Home PLMN (HPLMN) timer in the UE, when the UE is attached to the selected CSG cell in the manual CSG selection mode.

Abstract translation: 提供一种用于使用户设备（UE）能够在对所选择的封闭用户组（CSG）小区的注册尝试失败或者所选择的CSG小区的覆盖丢失的情况下快速恢复到正常服务的方法和系统。 当所选择的CSG小区与不同于所述UE的注册PLMN（RPLMN）的公共陆地移动网络（PLMN）相关联时，所述方法提供手动CSG选择模式期间的UE行为。 该方法还定义了当UE附加到所选择的CSG小区时UE处理用户请求以更改当前公共陆地移动网络（PLMN）选择模式并处理UE中归属PLMN（HPLMN）定时器的到期的动作 在手动CSG选择模式下。

公开(公告)号：US20160262061A1

公开(公告)日：2016-09-08

申请号：US14954354

申请日：2015-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Srinivas CHINTHALAPUDI ,  Ajay Kumar KABADI ,  Prasad Basavaraj DANDRA

IPC: H04W36/00 ,  H04L29/06

CPC classification number: H04W36/0022 ,  H04L65/1016 ,  H04L65/1059 ,  H04L65/1069

Abstract: Disclosed is a system, User Equipment (UE) and method for preventing voice call (VoLTE) call drops in a communication network. A paging message is received as an Internet Protocol Multimedia Subsystem (IMS) invite message. The paging message includes a domain, or the UE establishes a connection with the network, in order to determine whether the IMS invite is for a voice call. A condition of non-sustenance of the voice call is detected based on a power level check for the UE and Extended Service Request (ESR) is triggered. The voice call is continued according to a success or a failure of the ESR.

Abstract translation: 公开了一种在通信网络中防止语音呼叫（VoLTE）呼叫丢弃的系统，用户设备（UE）和方法。 接收到作为因特网协议多媒体子系统（IMS）邀请消息的寻呼消息。 寻呼消息包括域，或者UE建立与网络的连接，以便确定IMS邀请是否用于语音呼叫。 基于针对UE的功率电平检查来检测语音呼叫不维持的状况，并且触发扩展服务请求（ESR）。 根据ESR的成功或失败继续进行语音通话。

公开(公告)号：US20150351023A1

公开(公告)日：2015-12-03

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 ,  H04M15/00 ,  H04W48/08 ,  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.

Abstract translation: 提供了一种以手动PLMN选择模式选择公共陆地移动网络（PLMN）的装置和方法。 该方法包括以手动PLMN选择模式选择PLMN作为终端将附加到的网络，将所选择的PLMN存储在用户选择PLMN列表中，以及当终端尝试恢复以接收有限服务中的正常服务时 状态，基于所存储的用户选择PLMN列表中包括的至少一个PLMN来附加到网络的PLMN。

公开(公告)号：US20150126189A1

公开(公告)日：2015-05-07

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 ,  H04W60/04 ,  H04W4/08

CPC classification number: H04W48/18 ,  H04W4/08 ,  H04W8/186 ,  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.

Abstract translation: 本文的各种实施例提供了一种用于优化无线通信中的封闭用户组（CSG）选择的方法和系统。 该方法包括以下步骤：由用户设备（UE）发起手动CSG选择，验证手动CSG选择请求是否为新的，存储注册的公共陆地移动网络（RPLMN）和相应的公共陆地移动网络（PLMN） 如果CSG选择请求是新的，则选择模式，将PLMN选择模式和CSG选择模式改变为MANUAL，将UE注册到用户选择的CSG小区，如果注册是存在与用户选择的CSG小区相关联的一个或多个参数 无论属于RPLMN或不同PLMN的CSG小区如何，都成功，并且在断电和接通电源期间，使用当前PLMN选择模式中存储的PLMN ID和CSG ID组合来选择用户选择的CSG小区。

公开(公告)号：US20230300705A1

公开(公告)日：2023-09-21

申请号：US18183581

申请日：2023-03-14

Applicant: Samsung Electronics Co.,Ltd

Inventor： Goutham PONNAMREDDY ,  Lakshmi Prasanna JASTI ,  Satya Ganesh Nutan DEV ,  Srinivas CHINTHALAPUDI ,  Venkateswar Rao KARUMANCHI ,  Jaesik OH

IPC: H04W36/30 ,  H04W36/14

CPC classification number: H04W36/305 ,  H04W36/14 ,  H04W80/04

Abstract: The present disclosure refers to methods and systems to reduce delays in VoWI-FI handover and packet switching registration. The method includes triggering a Router Solicitation Router Advertisement (RSRA) procedure to establish a Transmission Control Protocol/Internet Protocol (TCP/IP) interface based on a determination that the VoWi-Fi handover of a user equipment (UE) is to be performed, determining if a router advertisement (RA) is received within a first time interval, and obtaining a full Internet Protocol version 6 (IPv6) address previously used by the UE in response to determining that the RA is not received within the first time interval, the full IPv6 address being for establishing the TCP/IP interface with a network.