Patent ID: 9369378
Filing Date: 2016-06-14
CPC Classification: H04L,H04W

Claim Text:
1. A method for a Proxy Unit in a communication network of enabling IP Communication with a Machine to Machine Unit, the method comprising: receiving from a Connectivity Unit a first IP address and a device identifier of the Machine to Machine Unit, wherein the Connectivity Unit is a Gateway GPRS Support Node (GGSN); storing the first IP address and the device identifier in a session database; receiving from the Machine to Machine Unit a first message or a request comprising a unique ID of the Machine to Machine Unit, wherein the first message is destined to a Machine to Machine application; storing the unique ID from the first message in the session database in association with the first IP address and the device identifier; receiving from the Machine to Machine application a second message destined to the Machine to Machine Unit and comprising the unique ID of the Machine to Machine Unit; searching for the device identifier and the first IP address in the session database, using the unique ID from the second message; responsive to detecting no active IP-session for the Machine to Machine Unit, using the device identifier to send a wake up message to the Machine to Machine Unit for enabling IP communication, wherein the detection of no active IP-session comprises attempting to forward the second message to the Machine to Machine Unit using the first IP address and the unique ID of the Machine to Machine Unit and receiving a negative acknowledgment in return, wherein the enabling of the IP communication comprises storing in the session database, in association with the device identifier and the unique ID, a second IP address of the Machine to Machine Unit received from the Connectivity Unit, wherein detecting no active IP-session further comprises deleting the first IP address from the session database, wherein the second message is forwarded to the Machine to Machine Unit using the second IP address and the unique ID, and wherein the wake up message is sent as an SMS or a wap-push message.