Patent ID: 9167498
Filing Date: 2015-10-20
Classification: H04W

Abstract:
1. An apparatus in a radio access network, the apparatus comprising: means for receiving first uplink tunnel parameters relating to a serving gateway node in a core network, means for selecting first downlink tunnel parameters relating to a first node, means for sending the first uplink and downlink tunnel parameters to a cache node designated to the first node, means for receiving second uplink and downlink tunnel parameters relating to the cache node, means for sending the second downlink tunnel parameters to the serving gateway node, enabling establishment of a second tunnel between the cache node and the serving gateway node based on the first uplink tunnel parameters and the second downlink tunnel parameters, means for establishing a first tunnel between the first node and the cache node based on the second uplink tunnel parameters and the first downlink tunnel parameters, means for sending uplink user plane data to the serving gateway node through the first and second tunnels via the cache node, and means for receiving downlink user plane data from the serving gateway node through the second and first tunnels via the cache node, enabling the user plane data transmitted between the first node and the serving gateway node to be cached at the cache node.