公开(公告)号：US20250159759A1

公开(公告)日：2025-05-15

申请号：US19022445

申请日：2025-01-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sangwook WOO ,  Chungho SHIN ,  Kyungmi JANG ,  Sujin HWANG

IPC: H04W76/45 ,  H04L65/4061 ,  H04W4/10 ,  H04W24/10

Abstract: An electronic device is provided. The electronic device includes a communication circuitry, memory storing one or more computer programs, and one or more processors operatively connected to the communication circuitry and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors indivudally or collectively, cause the electronic device to establish at least one multimedia broadcast and multicast service (MBMS) subchannel with a mission critical push to talk (MCPTT) server, and, while the at least one MBMS subchannel has been established, sends a message related to switching to a unicast method, to the MCPTT server, if the reception delay time of a control message related to the MBMS subchannel received through a general purpose MBMS subchannel (GPMS) satisfies a specified first switching condition.

公开(公告)号：US20230412652A1

公开(公告)日：2023-12-21

申请号：US18241628

申请日：2023-09-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jihwan NAM ,  Changjong KIM ,  Chungho SHIN

IPC: H04L65/1073 ,  H04L65/1016 ,  H04W76/10

CPC classification number: H04L65/1073 ,  H04L65/1016 ,  H04W76/10 ,  H04W84/042

Abstract: According to various embodiments, an electronic device comprises at least one antenna module, at least one short-range communication module, at least one processor and a memory, wherein the memory can store instructions for allowing, during the execution thereof, the processor to: register the electronic device to an IP multimedia subsystem (IMS) server through the at least one antenna module; confirm a short-range communication method capable of a device to device (D2D) connection with at least one first external electronic device; connect, based on identification information about the first external electronic device, with the at least one first external electronic device through the at least one short-range communication module with the confirmed short-range communication method; and process an IMS registration with respect to the first external electronic device in response to an IMS registration request received from the first external electronic device through the at least one short-range communication module.