US Patent No. 10,485,035

ADAPTIVE PEER STATUS CHECK OVER WIRELESS LOCAL AREA NETWORKS


Patent No. 10,485,035
Issue Date November 19, 2019
Title Adaptive Peer Status Check Over Wireless Local Area Networks
Inventorship Jichun Dong, Shenzhen (CN)
Jinyan Liu, Shenzhen (CN)
Wei Xu, Shenzhen (CN)
Assignee Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)

Claim of US Patent No. 10,485,035

1. A method in an evolved Packet data gateway, ePDG, for determining peer status check interval for a peer User Equipment, UE, the method comprising:establishing a packet data network, PDN, connection comprising a concatenation of an Internet Protocol Security, IPsec, tunnel established with the peer UE, and a corresponding default General Packet Radio Service, GPRS tunneling Protocol, GTP, tunnel established with a packet data gateway;
using a first peer status time interval in accordance with the default GTP tunnel to detect liveliness of the peer UE over the IPSec, tunnel; and
upon establishment of a dedicated GTP tunnel with the packet data gateway for the PDN connection, using a second peer status time interval in accordance with the dedicated GTP tunnel to detect liveliness of the peer UE over the IPSec tunnel until deactivation of the dedicated GTP tunnel, the second peer status time interval being different from the first peer status time interval.