SYSTEM, METHOD AND DEVICE FOR MANAGING ACCESS TO GENERAL RESOURCES IN A SET OF MCPTT SYSTEMS Russian patent published in 2018 - IPC H04W4/10 

FIELD: communication equipment.

SUBSTANCE: invention relates to communication. After receiving the first message transmitted by N network element devices, first access control server for shared resources determines, according to the first message transmitted by the N network element devices, and the access control policy to the shared resources, transmit a second message to the first network element device in the N network element devices where the second message is used for the MCPTT user in the MCPTT group belonging to the first MCPTT system to obtain a temporary access permission, and the first MCPTT system is the MCPTT system to which the first device of the network element belongs. Therefore, the first access control server for shared resources in the MCPTT system to which the MCPTT group belongs in the plurality of MCPTT groups participating in the current group call session, can control access to the MCPTT shared resources of a user in the MCPTT group belonging to another MCPTT system, thus implementing a method for controlling access to shared resources in a group call session where multiple MCPTT systems participate.

EFFECT: embodiments of the present invention provide a method, system and apparatus for controlling access to shared resources in a plurality of MCPTT systems.

18 cl, 21 dwg