Radio Communication Frequency Block Overlap Offset
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern radio communication systems face inefficiencies in frequency spectrum utilization due to the limited availability of frequency bands and increased signaling overhead, particularly in networks with numerous nodes, as they often rely on exclusive frequency allocation or adaptive frequency selection methods.
Innovation Solution
The method involves utilizing a frequency block with a given center frequency and selecting a frequency offset such that adjacent blocks are partly overlapping, causing the receiver to interpret signals separated by the offset as noise, thereby optimizing frequency spectrum use and reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If frequency blocks are allocated exclusively to different systems, then interference between systems is eliminated, but frequency spectrum utilization efficiency deteriorates
Solution Approach 1:
The patent merges previously exclusive frequency blocks into a shared resource pool that multiple radio communication systems can access simultaneously. By introducing a frequency selection mechanism with offset-based separation, the system allows multiple users to operate in the same frequency band while maintaining isolation through selective frequency offset application, thereby transforming exclusive allocation into efficient shared access.
Solution Approach 2:
The patent implements dynamic frequency selection where each radio communication apparatus independently chooses its operating frequency from the shared pool based on current conditions. The frequency offset is dynamically applied to separating signals in the shared spectrum, allowing the system to adaptively allocate frequencies in real-time rather than using static exclusive allocation, thus improving spectrum utilization while preventing interference.
2Productivity
If adaptive frequency selection is implemented, then frequency spectrum utilization efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent extracts the frequency selection negotiation process from the main communication signaling flow. By pre-defining a set of candidate frequency blocks and allowing apparatuses to independently select from this predefined set using a simple offset parameter, the complex frequency negotiation signaling is removed, leaving only minimal offset indication in the communication signals, thereby significantly reducing signaling overhead while maintaining adaptive frequency selection benefits.
3Object-affected harmful factors
If frequency blocks are made non-overlapping, then adjacent channel interference is eliminated, but frequency spectrum utilization efficiency deteriorates
Solution Approach 1:
The patent applies frequency offset selectively to specific radio communication apparatuses rather than uniformly to all signals. Each apparatus that may cause or receive adjacent channel interference is assigned a specific offset value from its selected frequency block, creating localized frequency separation exactly where needed. This allows frequency blocks to overlap in the spectrum while maintaining effective isolation between interfering signals through apparatus-specific offset application.
Data Source
AI summary
A solution for operating a radio communication apparatus communicating with at least one other apparatus is provided. In communication, a frequency block of a set of frequency blocks having a given center frequency is utilized. The center frequencies of at least some adjacent frequency blocks are separated by a given frequency offset. The offset is selected such that the adjacent frequency blocks are partly overlapping and the apparatus receiving a given frequency interprets a signal separated from the given signal by the offset as noise.