Telecommunications Radio Resource Overlap Detection for Reliable Coexistence
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Solution Overview
Problem
The deployment of mobile radio access technologies designed for licensed spectrum in unlicensed spectrum environments leads to unpredictable interference and lack of guaranteed spectrum resources, necessitating modified approaches for efficient coexistence with other radio access technologies.
Innovation Solution
A method and apparatus for a terminal device to detect overlaps in radio resources used for different access technologies and communicate this to network infrastructure, allowing the infrastructure to adjust configurations to avoid interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If mobile radio access technologies designed for licensed spectrum are deployed in unlicensed spectrum environments, then bandwidth availability is improved, but interference predictability deteriorates and spectrum resource guarantees are lost
Solution Approach 1:
The terminal device performs preliminary detection of radio resource overlaps between first radio access technology and second radio access technology before communication occurs. By detecting potential interference conditions in advance and reporting them to the network infrastructure equipment, the system can proactively adjust configurations to avoid interference, thus maintaining reliable communication while utilizing unlicensed spectrum resources
Solution Approach 2:
The invention implements a feedback mechanism where the terminal device continuously monitors and reports overlap conditions of radio resources to the network infrastructure equipment. This feedback loop enables the network to dynamically adjust resource allocations and configurations based on actual interference conditions, transforming the unpredictable unlicensed spectrum environment into a controllable communication system
2Productivity
If radio resources are shared among different radio access technologies in unlicensed spectrum, then spectrum utilization efficiency is improved, but coexistence reliability deteriorates
Solution Approach 1:
The terminal device detects and reports potential radio resource overlaps between different radio access technologies before interference occurs. This preliminary detection enables the network infrastructure equipment to pre-adjust resource configurations and avoid interference, allowing multiple technologies to share unlicensed spectrum efficiently while maintaining reliable coexistence
Solution Approach 2:
The network infrastructure equipment acts as an intermediary that receives overlap reports from terminal devices and coordinates resource allocations between different radio access technologies. By centralizing control and mediation, the system can manage shared spectrum resources fairly and reliably, preventing interference while maximizing spectrum utilization efficiency
3Adaptability or versatility
If terminal devices use multiple radio access technologies simultaneously, then communication versatility is improved, but in-device coexistence interference increases
Solution Approach 1:
The terminal device performs preliminary detection of radio resource overlaps between different radio access technologies within the same device before communication interference occurs. By identifying and reporting overlap conditions to the network in advance, the system can adjust configurations to avoid interference, enabling the terminal to versatilely use multiple technologies while minimizing self-generated interference
Solution Approach 2:
The terminal device autonomously monitors its own radio resource usage across different access technologies and self-reports overlap conditions to the network. This self-service approach enables the terminal to manage its own in-device coexistence interference, maintaining versatility while reducing harmful interference through autonomous detection and reporting
Data Source
AI summary
A terminal device and network infrastructure equipment communicate in accordance with a first radio access technology on a primary cell supporting a primary component carrier on radio resources within a first frequency band and a secondary cell supporting a secondary component carrier on radio resources within a second frequency band. The terminal device is also operable to use radio resources within the second frequency band for communicating in accordance with a second radio access technology, e.g. Wi-Fi. The network infrastructure equipment establishes a configuration of radio resources within the second frequency band for use by the terminal device for communications with the network infrastructure equipment in accordance with the first radio access technology and communicates an indication of this to the terminal device. The terminal device establishes a configuration of radio resources for use by the terminal device for communications in accordance with the second radio access technology and determines if there is any overlap in the radio resources configured for use by the two different radio access technologies, and if so communicates an indication of this to the network infrastructure equipment. In response the network infrastructure equipment establishes a replacement configuration of radio resources for communications with the terminal device in accordance with the first radio access technology, wherein the replacement configuration avoids the radio resources indicated as being subject to overlap, and transmits an indication of the replacement configuration to the terminal device.