Method for discriminating requests in a regroup of groups in a 3GPP MCS network

1 . A method for discriminating, by a first destination client entity, requests in a communication network according to the 3GPP MCS “3rd Generation Partnership Program Mission-Critical System” standard, the communication network including

a global communication group regrouping a plurality of communication groups,

at least one emitting client entity affiliated with a first communication group of the plurality of communication groups,

a destination client entity, affiliated with at least a second and a third communication group of the plurality of communication groups,

a controlling server in charge of managing the global communication group,

at least one participating server managing each client entity,

for each communication group of the plurality of communication groups, at least one non-controlling server of the global communication group in charge of managing the communication group,

the method comprising:

transmitting, by the emitting entity, via the participating server managing the emitting entity and the non-controlling server of the first group, to the controlling server, a mission-critical service request within the global group,

determining, by the controlling server, the communication groups included in the global communication group,

transmitting the mission-critical service request, by the controlling server, to the non-controlling server of each communication group determined to be included in the global communication group,

determining, by each non-controlling server, the destination client entities of the mission-critical service request,

transmitting the mission-critical service request, by each non-controlling server, to each destination client entity determined, via the participating server managing the destination client entity determined,

receiving at least a first mission-critical service request from the non-controlling server of the second communication group and a second mission-critical service request from the non-controlling server of the third communication group, by the first destination client entity, the non-controlling server of the second communication group and the non-controlling server of the third communication group being different servers each managing a different constituent communication group included in the global communication group, each request received comprising at least one piece of belonging group information of the non-controlling server emitting the request, wherein the first mission-critical service request comprises belonging group information identifying the second communication group and the second mission-critical service request comprises belonging group information identifying the third communication group, and

accepting, by the first destination client entity, one request from among the first and second mission-critical service requests as a function of the belonging group information of the non-controlling server emitting the request.

2 . The method according to claim 1 , further comprising adding, to the request, the belonging group information of the non-controlling server emitting the request.

3 . The method according to claim 2 , wherein said adding to the request the belonging group information of the non-controlling server emitting the request is implemented by the non-controlling server before the step of transmitting the request by the non-controlling server.

4 . The method according to claim 1 , further comprising rejecting the request not accepted from among the first and second mission-critical service requests as a function of the belonging group information of the non-controlling server emitting the request.

5 . The method according to claim 4 , wherein said rejecting comprises sending a rejection request, from the first destination client entity to the non-controlling server emitting the mission-critical service request rejected.

6 . The method according to claim 1 , wherein accepting the request is made on the basis of a configuration of the destination client entity.

7 . A communication network according to the 3GPP MCS “3rd Generation Partnership Program Mission-Critical System” standard, the communication network comprising:

a global communication group regrouping a plurality of communication groups, at least one emitting client entity affiliated with a first communication group of the plurality of communication groups,

at least one destination client entity, affiliated with at least a second and with a third communication group of the plurality of communication groups,

a controlling server in charge of managing the global communication group,

at least one participating server adapted to manage each client entity affiliated with the communication group,

for each communication group of the plurality of communication groups, at least one non-controlling server of the global communication group in charge of managing the communication group,

the communication network being configured to implement the method according to claim 1 .

8 . The communication network according to claim 7 , wherein the communication network is a third-generation “3G”, fourth-generation “4G” or fifth-generation “5G” network, wherein the first user device is a user equipment “UE”, the first network comprising at least one network core and at least one radio access network “RAN”.

9 . A non-transitory computer readable medium comprising machine executable instructions that cause the communication network to execute the steps of the method according to claim 1 .