Patent ID: 8553647

Claim:
A method for performing a non-optimized handoff from a first network having a plurality of nodes based on a first access technology to a second network having a plurality of nodes based on a second access technology, the method implemented by a user equipment, UE, comprising the steps of: initiating a traffic channel acquisition procedure by sending a connection request message as payload in a reverse data over signaling, DOS, message to one of the nodes in the second network, wherein the traffic channel acquisition procedure involves setting-up a traffic channel between the UE and the one node in the second network; initiating a packet data network, PDN, connection setup procedure by sending another configuration request message as payload in another reverse DOS message to another one of the nodes in the second network, wherein the another one node in the second network has maintained at least partial context for the UE from a previous time that the UE had established context on the second network; and the sending of the connection request message to the one node in the second network and the sending of the another configuration request message to the another one node in the second network are performed concurrently such that the traffic channel acquisition procedure and the PDN connection setup procedure are performed in parallel which reduces a mute time experienced by the UE during the non-optimized handoff from the first network to the second network.