Resource reservation in multiple accesses

A resource reservation device being adapted to enable resource allocation for a service data flow between a user equipment and a gateway in a multiple access network environment, the resource reservation device comprising:

• a receiver for receiving reservation instructions from a policy control node, the reservation instructions requiring dedicated access network resources to be reserved for the service data flow,
• a transmitter, and
• a processor configured to:
• report, to the policy control node, a result of the resource reservation required by the reservation instructions,
• request reservation of the resources required by the reservation instructions in a plurality of access networks,
• after requesting the reservation of the resources in the plurality of access networks, select, from the plurality of access networks, an access network in which dedicated access network resources have been successfully reserved, and
• report, to the policy control node, the selected access network.

A method for enabling resource allocation for a service data flow between a user equipment (UE) and a gateway (GW) in a multiple access network environment, comprising:

• a resource reservation device receiving instructions identifying resources to be reserved for the service data flow, the instructions being received from a policy control node;
• the resource reservation device requesting reservation of resources in a first access network;
• the resource reservation device receiving a first indication that indicates whether the reservation request in the first access network is successful;
• the resource reservation device requesting reservation of resources in a second access network;
• the resource reservation device receiving a second indication that indicates that the reservation request in the second access network is successful;
• after receiving said indications, the resource reservation device selecting an access network from a set of access networks, which set of access networks includes the first access network and the second access network;
• and
• the resource reservation device reporting the selected access network to the policy control node.