Server for control plane at mobile communication network and method for controlling SIPTO based session
First Claim
1. A method of controlling a session in a mobile communication network, the method performed by server network entity that takes charge of a control plane and comprising:
- receiving a tracking area update (TAU) request message of a terminal via a target base station;
obtaining subscription information of the terminal that includes Selected Internet Protocol Traffic Offload (SIPTO) parameter indicating whether the session is allowed for SIPTO per an access point name (APN);
determining whether gateway relocation is necessary for the session; and
if gateway relocation is determined to be necessary;
releasing at least one session associated with the APN among sessions in which the terminal is currently participating;
transmitting a TAU accept message to the terminal via the base station; and
establishing a SIPTO session with the terminal,wherein SIPTO corresponds to offloading certain types of traffic at a network node within a proximity to a point of attachment of the terminal to the access network.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed is a method of controlling a session in a serving server taking charge of the control plane within a mobile communication network. The control method may include receiving, by the serving server, a tracking area update (TAU) request message of a terminal from a target base station; retrieving, by the serving server, a previous server that has taken charge of the control plane for the terminal; receiving, by the serving server and from the retrieved previous server, a context response message comprising information indicating that a session for the terminal had been established to be passed through a path over the nodes within a fixed network different from a mobile communication network; deciding, by the serving server, whether gateway relocation is needed; releasing, by the serving server, the established session; transmitting, by the serving server, an accept message comprising information for the processing result to the terminal through the target base station; and establishing, by the serving server a session passing through a path over the nodes within a fixed network different from a mobile communication network based on the information.
-
Citations
8 Claims
-
1. A method of controlling a session in a mobile communication network, the method performed by server network entity that takes charge of a control plane and comprising:
-
receiving a tracking area update (TAU) request message of a terminal via a target base station; obtaining subscription information of the terminal that includes Selected Internet Protocol Traffic Offload (SIPTO) parameter indicating whether the session is allowed for SIPTO per an access point name (APN); determining whether gateway relocation is necessary for the session; and if gateway relocation is determined to be necessary; releasing at least one session associated with the APN among sessions in which the terminal is currently participating; transmitting a TAU accept message to the terminal via the base station; and establishing a SIPTO session with the terminal, wherein SIPTO corresponds to offloading certain types of traffic at a network node within a proximity to a point of attachment of the terminal to the access network. - View Dependent Claims (2, 3, 4)
-
-
5. A network entity for taking charge of control plane within a mobile communication network, the network entity comprising:
-
a radio frequency unit; and a processor operatively connected to the radio frequency unit and configured to; receiving a tracking area update (TAU) request message of a terminal via a base station; obtaining subscription information of the terminal that includes a Selected Internet Protocol Traffic Offload (SIPTO) parameter indicating whether the session is allowed for SIPTO per an access point name (APN); determining whether gateway relocation is necessary for the session; and if gateway relocation is determined to be necessary; releasing at least one session associated with the APN among sessions in which the terminal is currently participating; transmitting a TAU accept message to the terminal via the target base station; and establishing a SIPTO session with the terminal, wherein SIPTO corresponds to offloading certain types of traffic at a network node within a proximity to a point of attachment of the terminal to the access network. - View Dependent Claims (6, 7, 8)
-
Specification