SIPTO and LIPA Service Control via User Preference Feedback
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Solution Overview
Problem
Current methods lack user control and selection options for Selected Internet Protocol (SIPTO) and Local IP Access (LIPA) services, preventing users from accepting or declining these services based on quality of service (QoS) and not allowing users to request changes in traffic offloading points.
Innovation Solution
A method and apparatus that enable users to control SIPTO and LIPA services by prompting acceptance or rejection, allowing switching between SIPTO/LIPA and non-SIPTO/non-LIPA services, and indicating unacceptable QoS, through user preferences and network interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If SIPTO and LIPA services are implemented to offload traffic from the core network, then network efficiency and traffic routing are improved, but user control and service selection capability deteriorate
Solution Approach 1:
The patent implements dynamic user preference configuration that allows users to change their SIPTO/LIPA service preferences at any time. The system dynamically adjusts traffic offloading behavior based on real-time user preferences, transitioning from static network-controlled offloading to dynamic user-controllable offloading. This resolves the contradiction by maintaining network efficiency through automated preference management while granting users operational control.
Solution Approach 2:
The patent introduces feedback mechanisms where the network monitors user preferences and QoS conditions, then adjusts SIPTO/LIPA service application accordingly. Users receive notifications about service application and can provide feedback through preference changes. This closed-loop feedback system maintains network efficiency while enabling user control, as the network adapts its traffic offloading decisions based on continuous user feedback.
2Ease of manufacture
If automatic PDN connection establishment for SIPTO/LIPA is implemented, then service deployment is simplified, but user selection and QoS indication capability are lost
Solution Approach 1:
The patent implements preliminary user preference configuration before PDN connection establishment. Users pre-configure their SIPTO/LIPA preferences, and these preferences are stored and automatically applied during connection establishment. This preliminary action maintains simplified service deployment while enabling user selection, as preferences are configured once in advance rather than requiring complex real-time user interfaces during connection setup.
Solution Approach 2:
The patent enables the system to automatically establish PDN connections based on user preferences without requiring manual user intervention for each connection. The WTRU self-manages the application of user preferences to PDN connection requests, and the network automatically configures appropriate APNs and gateways based on stored preferences. This self-service mechanism maintains adaptability while simplifying deployment by eliminating complex user interfaces.
3Extent of automation
If SIPTO/LIPA traffic offloading is performed without user awareness, then network control is maximized, but user quality of service indication and service acceptance control are eliminated
Solution Approach 1:
The patent implements feedback mechanisms where users are notified when SIPTO/LIPA services are applied to their PDN connections. Users can indicate QoS concerns through preference changes, and the network responds by adjusting service application. This feedback loop maintains high network automation while improving QoS reliability, as users can signal when offloading negatively impacts their service quality.
Solution Approach 2:
The patent introduces user preferences as an intermediary between network automation and user QoS requirements. Rather than direct user control of each connection, preferences serve as a mediator that translates user QoS expectations into automated network decisions. This intermediary mechanism maintains network automation while indirectly ensuring QoS reliability by aligning offloading decisions with user expectations.
Data Source
AI summary
A method and apparatus are described for controlling the application of Selected Internet Protocol (IP) traffic offload (SIPTO) or Local IP Access (LIPA) services for a wireless transmit/receive unit (WTRU). The SIPTO and LIPA services may be performed over packet data network (PDN) connections. A user of the WTRU may be prompted to accept or reject the usage of the SIPTO or LIPA services. The user of the WTRU may request switching from SIPTO or LIPA services to non-SIPTO or non-LIPA services.