On-Demand Positioning Assistance Data Delivery via Unicast
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Solution Overview
Problem
Current procedures for periodic positioning assistance data provisioning via broadcast in wireless communication systems consume high resources and are inefficient, especially when not all users require the data.
Innovation Solution
Implementing an on-demand unicast procedure for delivering positioning assistance data, where a base station informs a wireless device about the supported data types and delivery methods, allowing for efficient resource utilization by switching between broadcast and unicast based on user demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If periodic positioning assistance data provisioning via broadcast is implemented, then all users can receive the data, but resource consumption increases significantly
Solution Approach 1:
The system dynamically switches between broadcast and unicast delivery modes based on real-time demand. When multiple users require positioning assistance data, broadcast mode is used to serve all users efficiently. When only one user needs the data, unicast mode is activated to conserve resources. This dynamic adaptation resolves the contradiction between ensuring data availability for all users and minimizing resource consumption.
Solution Approach 2:
The patent changes the delivery parameter from fixed broadcast to variable mode selection (broadcast/unicast). The network determines the number of users requiring positioning assistance data and adjusts the delivery method accordingly. This parameter change enables the system to optimize resource usage while maintaining adaptability to different user demand scenarios.
2Reliability
If broadcast provisioning is used for positioning assistance data, then data is delivered to all users, but unnecessary resource consumption occurs when not all users need the data
Solution Approach 1:
The patent applies local quality by tailoring the data delivery method to each user's specific needs. Instead of uniformly broadcasting to all users regardless of need, the system identifies which users actually require positioning assistance data and delivers it selectively. This localized approach ensures reliable data delivery to those who need it while avoiding unnecessary resource consumption for users who don't require the data.
Solution Approach 2:
The system dynamically adjusts the delivery mechanism based on user demand. The network monitors which users require positioning assistance data and switches between broadcast mode (when multiple users need it) and unicast mode (when only specific users need it). This dynamic behavior maintains data delivery reliability for users who need it while eliminating wasteful resource consumption.
3Loss of energy
If unicast delivery is used for positioning assistance data, then resource efficiency improves, but the system complexity increases
Solution Approach 1:
The patent implements a universal delivery system that can perform both broadcast and unicast operations through the same infrastructure. The base station and network entities are designed to handle multiple delivery modes, selecting the appropriate mode based on user demand. This multi-functionality approach achieves resource efficiency through unicast when needed while avoiding excessive system complexity by using a unified framework rather than separate systems for each delivery mode.
4Productivity
If on-demand unicast procedure is implemented, then resource efficiency is enhanced, but the procedure complexity increases
Solution Approach 1:
The system implements self-service through automated user demand detection and appropriate delivery mode selection. Users who need positioning assistance data can request it, and the network automatically determines the optimal delivery method based on the number of requesting users. This self-service mechanism enhances resource efficiency by delivering data only when and how needed, while minimizing procedure complexity through automated decision-making rather than manual configuration.
Data Source
AI summary
According to certain embodiments, a method by a wireless device includes receiving, from a network node, a first indication of a system information data and broadcast status associated with on-demand delivery of the system information data. The wireless device transmits a request for the system information data to the network node while the wireless device is in Radio Resource Control, RRC, Connected Mode. Based on the broadcast status, the wireless device receives the on-demand delivery of the system information data from the network node.