User Equipment RAT Prioritization Signaling
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Solution Overview
Problem
Current 3GPP systems lack a method for user equipment (UE) to dynamically and efficiently select and signal the most favorable radio access technology (RAT) for wireless data communication, leading to suboptimal power consumption and performance, especially in varying environmental conditions.
Innovation Solution
The UE prioritizes suitable RATs based on criteria such as energy consumption, security level, geolocation, and quality of service, and transmits uplink control signaling to the network, allowing for dynamic adaptation of RATs in real-time without manual user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If manual user-based deactivation of RATs is used, then power consumption can be reduced, but the solution is less user-friendly and cannot be adapted to specific environmental conditions in real time
Solution Approach 1:
The UE automatically performs RAT prioritization and selection based on its own measurements and criteria without requiring manual user intervention. The device monitors environmental conditions, evaluates multiple RATs, and autonomously determines the most favorable RAT for data communication, thereby reducing power consumption while maintaining ease of operation.
Solution Approach 2:
The RAT selection mechanism is made dynamic and adaptable to changing environmental conditions. The UE continuously monitors conditions such as signal strength, data rate requirements, and power availability, and adjusts its RAT prioritization in real-time based on current conditions rather than using static manual configurations.
2Loss of information
If existing 3GPP signaling methods are used, then network control is maintained, but there is no obvious method for the UE to signal its RAT preference information to the network
Solution Approach 1:
The UE prepares and transmits RAT prioritization information to the network in advance, before actual data communication begins. This preliminary signaling allows the network to understand the UE's preferences and constraints, enabling the network to make informed decisions about resource allocation and handover procedures without requiring complex real-time negotiations.
Solution Approach 2:
The invention introduces new parameters and information elements into the existing 3GPP signaling framework to convey RAT prioritization information. By extending the signaling protocol with specific parameters that indicate UE preferences for different RATs, the system can transmit this information efficiently without fundamentally changing the overall signaling architecture.
3Adaptability or versatility
If the UE automatically selects favorable RATs based on its own criteria, then real-time adaptation is possible, but the network may not be able to control the selection from a network point of view
Solution Approach 1:
The system implements a feedback mechanism where the UE reports its RAT prioritization preferences to the network, and the network responds with decisions and instructions. The network can accept, modify, or reject the UE's preferred RAT selections based on overall network conditions, load balancing considerations, and service quality requirements, thereby maintaining network control while enabling real-time adaptation.
Solution Approach 2:
The RAT selection process is divided into separate functional components: the UE evaluates and prioritizes RATs based on local conditions and preferences, while the network makes final decisions based on global network state. This segmentation allows both the UE and network to operate independently within their respective domains while maintaining coordination through signaling exchanges.
Data Source
AI summary
According to an embodiment, a method for use in a user equipment is disclosed. Hereby, the user equipment is adapted to communicate with a wireless network using a plurality of radio access technologies. According to this, the method comprises prioritizing at least one radio access technology from the plurality of radio access technologies. Further, the method also comprises transmitting uplink control signaling indicative of the prioritized at least one radio access technology to the wireless network. According to further embodiments, a method for use in a network node of a wireless network as well as respective first and second devices are disclosed.