Packet Data Channel Setup with Invitation Message Nesting
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Solution Overview
Problem
Current messaging systems for establishing and maintaining packet data connections in wireless networks are inefficient, leading to delays and resource wastage in call setups, particularly in VoIP sessions.
Innovation Solution
The method involves inserting an invitation message into a setup message at a first node in a wireless network, which is then forwarded through multiple nodes to establish a packet data channel, allowing for parallel processing and earlier initiation of the invitation process before the channel is fully established, optimizing the message sequence and reducing setup time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If traditional sequential messaging is used to establish packet data connection, then message processing is simple and straightforward, but call setup time is excessive and system efficiency is low
Solution Approach 1:
The patent applies preliminary action by inserting the invitation message into the setup message at the first node before the packet data channel is fully established. This allows the invitation message to be extracted and forwarded to the third node in advance, while the channel establishment process is still ongoing. The parallel processing of these operations reduces the overall call setup time without significantly increasing system complexity.
2Productivity
If parallel message processing is implemented to reduce setup time, then call establishment speed improves, but message routing complexity increases
Solution Approach 1:
The patent merges the invitation message with the setup message at the first node, creating a combined message structure. This merged message is then transmitted through the network, where intermediate nodes extract and forward the invitation message while the setup message continues its routing path. This merging approach enables parallel processing of connection establishment and invitation forwarding, improving productivity while managing routing complexity through a structured message combination strategy.
3Loss of time
If invitation message is forwarded early before channel establishment, then overall setup time is reduced, but risk of message loss or interference increases
Solution Approach 1:
The patent uses the nested doll principle by embedding the invitation message within the setup message structure at the first node. The invitation message is nested inside the setup message container, which provides protection and ensures proper routing. Intermediate nodes can extract the nested invitation message for forwarding while the outer setup message continues to establish the packet data channel, ensuring both messages reach their destinations reliably despite the early forwarding of the invitation message.
Data Source
AI summary
The present disclosure relates generally to systems and methods for a setting up a packet data connection in a wireless network. In one example, a method may include receiving a packet data channel request and an invitation message at a first node over an air interface from a mobile device. The invitation message may be directed to a communication device. The invitation message may be inserted into a setup message used to set up the packet data channel and the setup message may be sent to a second node. The invitation message may be extracted from the setup message by the second node and forwarded to a third node. The setup message may be processed to establish the packet data channel.