Communication system, communication control method, and mobility management node
View Patent ↗A node on a core network, in accordance with a connection state of a terminal, releases a transmission path resource which is made unnecessary due to LIPA (Local IP access) or SIPTO (Selected IP traffic offload) connection configuration.
1. A method for a mobile communication system, the method comprising:
releasing, by an MME (Mobility Management Entity), bearers in an SGW (Serving Gateway) by sending a request to the SGW when SIPTO (Selected IP Traffic Offload) is established; and
sending, by the SGW, a response to the MME.
2. A mobile communication system, the system comprising:
an MME (Mobility Management Entity); and
an SGW (Serving Gateway),
wherein the MME releases bearers in the SGW by sending a request to the SGW when SIPTO (Selected IP Traffic Offload) is established, and
wherein the SGW sends a response to the MME.
3. A mobility management node used in a mobile communication system, the node comprising:
a unit that sends a request to an SGW (Serving Gateway) for releasing bearers in the SGW when SIPTO (Selected IP Traffic Offload) is established; and
a unit that receives a response from the SGW.
4. The mobility management node according to claim 3 ,
wherein the mobility management node comprises an MME (Mobility Management Entity).
5. A method for a mobility management node used in a mobile communication system, the method comprising:
sending a request to an SGW (Serving Gateway) to release bearers in the SGW when SIPTO (Selected IP Traffic Offload) is established; and
receiving a response from the SGW.
6. The method according to claim 5 ,
wherein the mobility management node comprises an MME (Mobility Management Entity).