Subscriber Mobility Flag for Signaling Reduction
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Solution Overview
Problem
Current 3GPP wireless systems lack distinction in user subscriptions for mobility requirements, leading to resource wastage and inefficiency due to uniform handling of mobility procedures for all users, regardless of their specific needs, which is undesirable in the long-term evolution (LTE) for improved efficiency.
Innovation Solution
A method is introduced to set a mobility flag for each subscriber upon initiation, allowing differentiation between full, nomadic, and fixed mobility types, enabling appropriate configuration based on user needs, and providing mobility information through a controlling entity within the network, which broadcasts configuration details efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uniform mobility handling procedures are applied to all users, then all users receive full mobility support, but network resources are wasted and signaling overhead increases
Solution Approach 1:
The patent applies local quality by differentiating mobility handling based on user subscription type. Full mobility procedures (handover, context transfer, measurements) are applied only to users with full mobility subscriptions, while nomadic or fixed users receive simplified handling. This resolves the contradiction by providing appropriate mobility support locally tailored to each user's needs rather than uniformly to all users.
2Reliability
If full mobility procedures are implemented for all subscribers, then seamless handover is achieved for mobile users, but signaling overhead increases and network capacity is reduced
Solution Approach 1:
The patent implements local quality by applying full mobility procedures only to users with full mobility subscriptions who require seamless handover. Nomadic and fixed users receive simplified handling that reduces signaling overhead. This allows the network to maintain high mobility support for mobile users while increasing overall network capacity by reducing unnecessary signaling for other user types.
3Reliability
If mobility measurements and context transfer are performed for all users, then mobility continuity is ensured, but device complexity and power consumption increase
Solution Approach 1:
The patent applies local quality by configuring UE mobility handling based on subscription type. Full mobility procedures including measurements and context transfer are enabled only for users requiring mobility continuity. Nomadic and fixed users have these procedures disabled or simplified, reducing device complexity and power consumption while maintaining reliability for users who actually need it.
4Adaptability or versatility
If a one-size-fits-all mobility approach is used, then all users are treated equally, but resource efficiency decreases and differential service pricing is limited
Solution Approach 1:
The patent resolves this contradiction by enabling local quality differentiation through subscription-based mobility handling. The network can efficiently allocate resources based on actual user needs (full mobility, nomadic, or fixed), improving resource efficiency. Simultaneously, the system maintains adaptability by supporting multiple service types and enabling differential pricing strategies for different mobility requirements.
Data Source
AI summary
A method of providing mobility information in a mobile communication system comprises setting a mobility flag on initiation of a user subscription representing (5) mobility type in a network (3) for each subscriber. On receiving a request (7) from a subscriber to operate in the network, the mobility flag (10) of the subscriber is checked (12) and the subscriber is instructed to use an appropriate configuration for communication on the network according to the mobility flag set for that subscriber