UAV Group Discovery Using Relay UEs to Cut Interference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in efficiently discovering and connecting user equipment (UE) that are outside the coverage area of a primary UE, particularly in scenarios involving unmanned aerial vehicles (UAVs), leading to potential interference and increased power consumption.
Innovation Solution
A mechanism is introduced where a primary UE selects covered UEs within its coverage area, prioritizes them based on distance and quality of service, and uses these UEs as relays to discover and connect with non-covered UEs, employing unicast, multicast, or broadcast messages to minimize interference and optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If a primary UE transmits searching messages to discover non-covered UEs directly, then the discovery capability is improved, but the interference and power consumption increase
Solution Approach 1:
The patent introduces covered UEs as intermediary nodes between the primary UE and non-covered UEs. Instead of the primary UE directly searching for non-covered UEs, it first discovers covered UEs within its coverage area, which then act as relays to discover non-covered UEs outside the coverage area. This multi-hop discovery mechanism reduces direct interference from the primary UE while maintaining discovery capability.
2Difficulty of detecting and measuring
If a primary UE transmits searching messages to discover non-covered UEs directly, then the discovery capability is improved, but the power consumption increases
Solution Approach 1:
The patent uses covered UEs as energy-efficient intermediary nodes. The primary UE only needs to transmit searching messages to covered UEs within its coverage area, which consume less power than long-range direct transmissions to non-covered UEs. The covered UEs then perform local discovery of non-covered UEs, distributing the energy consumption across multiple nodes with shorter transmission distances.
Solution Approach 2:
The discovery process is segmented into multiple stages: first discovering covered UEs within coverage area, then using those covered UEs to discover non-covered UEs outside the coverage area. This segmentation breaks down a single high-power transmission task into multiple lower-power transmission tasks, reducing overall energy consumption.
3Reliability
If covered UEs are selected based on distance and quality of service, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
The patent implements a feedback-based selection mechanism where the primary UE receives quality of service information and distance measurements from covered UEs, then uses this feedback to select the most suitable covered UEs for relay operations. This feedback loop ensures reliable connection selection while keeping the selection process manageable through standardized measurement and reporting procedures.
Data Source
AI summary
The disclosure relates to an apparatus including circuitry for: selecting at least one covered user equipment among a plurality of covered user equipment inside the coverage area of the apparatus; sending, to the at least one covered user equipment, a searching message, wherein the searching message includes an indication that the at least one covered user equipment is to send a searching result message to the apparatus, wherein the searching result message includes an indication of at least one non-covered user equipment located outside the coverage area of the apparatus and inside a coverage area of the at least one covered user equipment; and receiving, from the at least one covered user equipment, the searching result message.