Method for associating mission critical user with user equipment of mission critical user, and related device

A location management server (LMS), comprising

• a non-transitory memory;
• a communication interface configured to receive first information sent by a mission critical (MC) client, wherein the first information comprises identity information of a mission critical user and indication information of a user equipment (UE) currently used by the mission critical user, and wherein the indication information of the UE comprises identification information of the UE, or identification information of the UE and a life cycle timer associated with the identification information;
• and
• a hardware processor coupled to memory and configured to:
• establish, based on the first information, an association relationship between the identity information of the mission critical user and the indication information of the UE currently used by the mission critical user, and
• save the association relationship in the memory.

A mission critical service communications system, comprising:

• a location management server (LMS);
• a mission critical (MC) client configured to:
• obtain indication information of a user equipment (UE) currently used by a mission critical user, and
• send first information to the LMS, wherein the first information comprises identity information of the mission critical user and the indication information of the UE currently used by the mission critical user, and the indication information of the UE comprises identification information of the UE, or identification information of the UE and a life cycle timer associated with the identification information;
• and
• wherein the LMS is configured to:
• receive the first information sent by the MC client, and
• establish and save, based on the first information, an association relationship between the identity information of the mission critical user and the indication information of the UE currently used by the mission critical user.