Patent ID: 8488519
Filing Date: 2013-07-16
Classification: H04L,H04W

Abstract:
1. A method, comprising: receiving, at a load balancer, a message associated with a mobile device from a first tunnel termination gateway (TTG) of a plurality of TTGs; determining, by the load balancer, a gateway GPRS support node (GGSN) in a plurality of GGSNs to which to send the message from the load balancer, the first TTG and the determined GGSN providing a packet data gateway function in a wireless local area network, wherein the load balancer is a central point between the plurality of TTGs and the plurality of GGSNs in the packet data gateway function; and assigning, at the load balancer, a network service access point identifier (NSAPI) for use by the determined GGSN, wherein the load balancer ensures that the assigned NSAPI is not currently in use at the determined GGSN by performing a table look-up in the load balancer; receiving a plurality of messages from the plurality of TTGs; for messages in the plurality of messages, determining different GGSNs in the plurality of GGSNs to which to send the messages; and for each of the different GGSNs, assigning, at the load balancer, NSAPIs for use by a GGSN to which messages will be sent, wherein the load balancer ensures that the assigned NSAPIs for the GGSN are not currently in use at the GGSN.