US 12,439,247 B2
Method and system for controlling ad-hoc group communication with security context for mission critical services
Arunprasath Ramamoorthy, Bangalore (IN); Rohini Rajendran, Bangalore (IN); Kiran Gurudev Kapale, Bangalore (IN); and Basavaraj Jayawant Pattan, Bangalore (IN)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Sep. 21, 2022, as Appl. No. 17/934,118.
Claims priority of application No. 202141042797 (IN), filed on Sep. 21, 2021; application No. 202141045053 (IN), filed on Oct. 4, 2021; and application No. 202141042797 (IN), filed on Aug. 30, 2022.
Prior Publication US 2023/0103760 A1, Apr. 6, 2023
Int. Cl. H04W 12/55 (2021.01); H04W 12/0431 (2021.01); H04W 84/18 (2009.01)
CPC H04W 12/0431 (2021.01) [H04W 12/55 (2021.01); H04W 84/18 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method performed by a mission-critical push-to-talk (MCPTT) server in a wireless communication system, the method comprising:
receiving, from a first MCPTT device, a modify ad hoc group call participants request to remove a second MCPTT device from an ad hoc group call and to add a third MCPTT device into the ad hoc group call;
identifying whether the first MCPTT device is authorized to modify participants of the ad hoc group call;
transmitting, to the first MCPTT device, a modify ad hoc group call participants response;
transmitting, to the second MCPTT device, an ad hoc group call leave request to remove the second MCPTT device from the ad hoc group call; and
transmitting, to the third MCPTT device, an ad hoc group call request to add the third MCPTT device into the ad hoc group call.