Method of controlling a session related to a service

A primary control entity in a communication network for controlling a session for providing a service between two devices, at least one data stream being associated with said session, said primary control entity being on a network path between said devices and comprising:

• a processor;
• and
• a non-transitory computer-readable medium comprising instructions stored thereon, which when executed by the processor configure the primary control entity to perform acts comprising:
• following a session control message being sent by one device among said two devices toward the other device:
• performing:
• inserting in said session control message a session control policy to be implemented in the event of a data stream associated with the session being inactive, said session control policy being generated by the primary control entity as a function of a type of said service, or
• obtaining the session control policy from the session control message sent by the one device, the session control message having been inserted into the session control message by the one device;
• said inactivity of said data stream including a non-establishment or a premature release of the data stream;
• and
• sending the session control policy in the session control message to a secondary control entity, which is in charge of implementing said session control policy, said secondary control entity being located on the network path between the two devices and being distinct from the primary control entity.

A secondary control entity in a communication network implementing and configured to use session control signals for controlling a session for providing a service between two devices, at least one data stream being associated with said session, the secondary control entity being on a network path between said devices and comprising:

• a processor;
• and
• a non-transitory computer-readable medium comprising instructions stored thereon, which when executed by the processor configure the secondary control entity to perform acts comprising:
• receiving a session control policy in a session control message sent by one of the devices to the other device, said session control policy configured to be implemented in the event of at least one data stream associated with the session being inactive, said inactivity of said data stream including a non-establishment or a premature release of the data stream, said session control policy having being obtained or generated by a primary control entity, said primary control entity being located on the network path between the two devices and being distinct from the secondary control entity;
• and
• implementing said session control policy upon detection of an inactivity of the data stream.

A system for controlling a session for providing a service between two devices in a communication network, at least one data stream being associated with said session, the system comprising:

• a primary control entity located on a network path between said two devices and comprising:
• a first processor;
• and
• a first non-transitory computer-readable medium comprising instructions stored thereon, which when executed by the processor configure the primary control entity to perform acts comprising:
• following a session control message being sent by one device among said two devices toward the other device:
• obtaining from said session control message a session control policy to be implemented in the event of a data stream associated with the session being inactive, or
• generating the session control policy by the primary control entity as a function of a type of said service and inserting the session control policy into the session control message,
• said inactivity of said data stream including a non-establishment or a premature release of the data stream;
• and
• a secondary control entity, which is located on the network path between the two entities and is distinct from the primary control entity, the secondary control entity comprising:
• a second processor;
• and
• a second non-transitory computer-readable medium comprising instructions stored thereon, which when executed by the processor configure the secondary control entity to perform acts comprising:
• obtaining said session control policy in said session control message or in a response from said other device;
• and
• on detecting inactivity of the data stream, implementing said session control policy.

A non-transitory computer-readable data medium comprising program code instructions stored thereon for controlling in a communication network a session for providing a service between two devices, when the instructions are executed by a processor of a primary control entity, at least one data stream being associated with said session, wherein the instructions configure the primary control entity to perform acts comprising:

• following a session control message being sent by one device among said two devices to toward the other device:
• performing:
• inserting in said session control message a session control policy to be implemented in the event of a data stream associated with the session being inactive, said session control policy having been generated by the primary control entity as a function of a type of said service, or
• obtaining the session control policy from the session control message sent by the one device, the session control message having been inserted into the session control message by the one device;
• said inactivity of said data stream including a non-establishment or a premature release of the data stream, said primary control entity being located on a network path between said two devices;
• and
• sending said session control policy in the session control message or in a response to said session control message to a secondary control entity in charge of implementing said session control policy, said secondary control entity being located on the network path between the two devices and being distinct from the primary control entity.