Wireless Terminal Dual-Stack Connection via IP Probe
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Solution Overview
Problem
The existing methods for establishing dual-stack connections in wireless terminal devices are slow and cumbersome due to a lack of uniform standards for IPv6 support in wireless networks, leading to a time-consuming attempt and fall-back mechanism when accessing both IPv4 and IPv6 networks.
Innovation Solution
A method and device that determine the supported IP type by sending various PDP activation requests upon registration and initiate the appropriate request upon user connection instruction, allowing for rapid establishment of dual-stack connections by avoiding the fall-back process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the wireless terminal device uses the attempt and fall-back mechanism to send IPv4v6 single-PDP activation request first, then IPv4 PDP activation request and IPv6 PDP activation request, then the dual-stack connection can be established with broad compatibility, but the connection establishment time is excessive and the speed is slow
Solution Approach 1:
The patent applies preliminary action by sending a probe message before the actual connection establishment to detect which IP protocol version (IPv4 or IPv6) the network supports. This advance detection allows the terminal device to prepare the appropriate PDP activation request in advance, avoiding the need for subsequent fall-back attempts and significantly reducing connection establishment time while maintaining compatibility across different network types
Solution Approach 2:
The patent inverts the traditional approach by first sending a lightweight probe message to detect network capabilities before attempting full connection establishment. Instead of immediately trying to establish a connection and then falling back if it fails, the system reverses the sequence by gathering information first and then acting accordingly, which eliminates the time-wasting iterative attempt-fallback process
2Reliability
If the wireless terminal device sends multiple types of PDP activation requests in sequence to ensure compatibility with both IPv4 and IPv6 networks, then the dual-stack connection can be established reliably, but the process becomes cumbersome and the connection speed decreases
Solution Approach 1:
The probe message mechanism performs preliminary detection of network IP protocol support before the actual connection attempt. This advance information gathering ensures that the subsequent PDP activation request uses the correct IP version, guaranteeing connection reliability while eliminating the need for multiple sequential attempts that would slow down the process
Solution Approach 2:
The patent extracts the essential capability detection function into a separate, lightweight probe message that is sent independently before the main connection establishment process. By separating the detection phase from the connection phase, the system can quickly determine network capabilities without burdening the main connection process with trial-and-error attempts, thus maintaining reliability while improving speed
Data Source
AI summary
A method and wireless terminal device for rapidly establishing a dual-stack wireless connection. The wireless terminal device sends various types of packet data protocol (PDP) activation requests after being registered onto a wireless network, and determines an Internet Protocol (IP) type supported by the network based on a result returned by the network; after receiving a connection instruction from a user, the wireless terminal device initiates one PDP activation request corresponding to a determined IP type supported by the network; if a result that the PDP activation is performed successfully is returned by the network, the wireless terminal device establishes a data connection. Compared to the related art, the wireless terminal device of the present disclosure determines the IP type supported by the network in advance when it is registered onto the network, and thus may prevent a fall-back process and rapidly establish the connection when receiving the connection instruction.