Offloadable APN Broadcast Signaling for Mobile Data Offloading
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Solution Overview
Problem
Mobile communication devices often face conflicts between Radio Access Network (RAN) rules and Access Network Discovery and Selection Function (ANDSF) rules for offloading data, leading to unclear precedence and inefficient data offloading strategies.
Innovation Solution
The implementation of systems and methods that determine precedence between RAN rules and ANDSF rules, allowing base stations to broadcast signals enabling all devices to offload data to a specific Access Point Name (APN, combining the advantages of various signaling methods such as RRC broadcast, RRC dedicated mode, and NAS signaling to optimize offload information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If base stations use multiple signaling methods (RRC broadcast, RRC dedicated mode, NAS signaling) to transmit offload information, then the completeness and reliability of offload information transmission is improved, but the device complexity and signaling overhead increase
Solution Approach 1:
The patent combines multiple signaling methods (RRC broadcast signaling, RRC dedicated mode signaling, and NAS signaling) into a unified offload information transmission mechanism. The base station selectively applies different signaling methods based on network conditions and device capabilities, merging their advantages while managing complexity through a coordinated control framework.
Solution Approach 2:
The patent implements dynamic selection among different signaling methods based on real-time network conditions, device states, and offload requirements. The system adapts the signaling approach dynamically rather than using a fixed method, optimizing reliability while managing complexity through condition-based decision making.
2Adaptability or versatility
If the system transmits offload information to all devices camped on a serving cell, then the coverage and accessibility of offload services is improved, but the signaling overhead and network load increase
Solution Approach 1:
The patent applies different signaling strategies to different devices based on their individual characteristics, network conditions, and offload suitability. Rather than uniformly treating all devices, the system tailors the signaling approach to each device's specific context, improving accessibility while minimizing unnecessary signaling overhead for unsuitable devices.
Solution Approach 2:
The patent implements partial offload information transmission by selectively targeting only those devices that meet specific criteria for offload suitability. This partial action approach avoids excessive signaling to all devices while ensuring comprehensive coverage for eligible devices, balancing accessibility with overhead management.
3Productivity
If the system prioritizes ANDSF rules over RAN rules for data offloading, then the network selection and traffic steering efficiency is improved, but the device complexity in rule evaluation increases
Solution Approach 1:
The patent segments the rule evaluation process into distinct phases: first evaluating ANDSF rules for high-level offload decisions, then applying RAN rules for detailed execution. This segmentation allows efficient prioritization of ANDSF rules while managing device complexity through a structured, multi-stage evaluation framework that breaks down the overall complexity into manageable steps.
Data Source
AI summary
Systems and methods are provided for determining precedence between Radio Access Network (RAN) rules and Access Network Discovery and Selection Function (ANDSF) rules when a mobile communication device has access to more than one set of rules for offloading data. Systems and methods for transmitting an offloadable Access Point Name (APN) to a mobile communication device when RAN rules are used. Embodiments of the present disclosure combine the advantages of signaling methods when offloading information to a mobile communication device after a RAN rule has been satisfied such that a base station is able to broadcast a signal that enables all devices camped on an serving cell to offload to the APN.