Autonomous Sub-Channel Selection for Wireless Spectrum Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless networks face inefficiencies in adaptive spectrum use due to sub-optimal utilization of narrowband and wideband transmissions, leading to reduced spectrum efficiency and increased power consumption in terminal devices.
Innovation Solution
The implementation of autonomous sub-channel selection by terminal devices based on content notification messages, allowing for flexible reception of necessary information without increasing signaling overhead, and the use of content notification messages to indicate available resources for narrowband and wideband transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If terminal devices autonomously select sub-channels based on content notification messages, then spectrum efficiency is improved, but device complexity increases
Solution Approach 1:
The access node performs preliminary actions by generating and transmitting content notification messages that indicate which sub-channels contain useful information. Terminal devices use these pre-provided notifications to autonomously select sub-channels without complex real-time analysis, improving spectrum efficiency while keeping device complexity manageable.
Solution Approach 2:
Terminal devices autonomously select their own sub-channels based on content notification messages rather than being assigned by the access node. This self-service approach allows devices to independently optimize their spectrum usage by selecting sub-channels most relevant to their needs, improving overall spectrum efficiency.
2Use of energy by moving object
If terminal devices receive only necessary information on selected sub-channels, then power consumption is reduced, but information completeness may be compromised
Solution Approach 1:
Content notification messages are transmitted in advance to indicate which sub-channels contain information relevant to specific terminal devices. Devices use these notifications to selectively receive only necessary information, reducing power consumption while ensuring information completeness for their specific needs.
Solution Approach 2:
Different sub-channels carry different types of information tailored to different terminal device needs. Each terminal device receives information with local quality optimized for its specific requirements, ensuring completeness of necessary information while avoiding unnecessary data transmission.
3Productivity
If content notification messages are transmitted to indicate available resources, then spectrum efficiency is improved, but signaling overhead increases
Solution Approach 1:
Content notification messages serve multiple functions simultaneously: they indicate available sub-channels, convey information about message contents, and guide terminal device selections. This multi-functionality reduces the need for separate signaling messages, improving spectrum efficiency while minimizing signaling overhead.
Solution Approach 2:
The patent combines multiple types of information into single content notification messages transmitted on sub-channels. By merging resource indication, content description, and selection guidance into unified messages, the system improves spectrum efficiency without proportionally increasing signaling overhead.
Data Source
Figure 1~2B
Figure 3~5
Figure 6~7
AI summary
This document discloses a solution for carrying out narrowband communications in a wireless network. According to an aspect, a method comprises in an apparatus: detecting at least one content notification message indicating contents of each of a plurality of messages frequency-multiplexed with a discovery message to parallel sub-channels of a channel in a bi-directional wireless network; selecting autonomously a sub-channel on the basis of the detected content notification message; and acquiring a message through the selected sub-channel.