Interleaved Transceivers for Spectrum Segmentation and Interference Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current mobile communication networks face inefficiencies in spectrum usage and interference issues at sector boundaries, leading to non-optimal service and decreased throughput due to interference between antennas operating on the same frequencies.
Innovation Solution
The implementation of interleaved transceivers operating on different frequency ranges, which creates new sectors and reduces interference by using distinct frequency sets, thereby improving SINR and codec efficiency without requiring additional spectrum or physical resource blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If antennas operate on the same frequencies to provide coverage, then coverage area is improved, but interference increases at sector boundaries
Solution Approach 1:
The patent segments the frequency spectrum into different blocks and assigns them to different transceiver groups. Specifically, first transceivers operate on a first block of frequencies while second transceivers operate on a second block of frequencies, thereby segmenting the previously unified frequency resource into distinct non-interfering segments that can coexist spatially and spectrally.
Solution Approach 2:
The patent applies local quality by assigning different frequency characteristics to different spatial locations. Transceivers at specific sector boundaries or geographic locations use specific frequency blocks tailored to their local interference environment, rather than uniformly applying the same frequency allocation across all locations.
2Productivity
If additional transceivers are deployed to increase capacity, then throughput is improved, but spectrum requirements increase
Solution Approach 1:
The patent merges spatial diversity with frequency division by interleaving transceivers from different frequency blocks in a coordinated manner. This allows the system to combine the capacity benefits of multiple transceivers while using frequency separation to eliminate interference, achieving higher throughput without proportionally increasing total spectrum consumption.
Solution Approach 2:
The patent adds a frequency block dimension to the traditional spatial arrangement of transceivers. Instead of only arranging transceivers in space, it introduces a second dimension of frequency block assignment, creating a two-dimensional resource allocation space (space-frequency) that increases capacity without linearly increasing spectrum requirements.
3Reliability
If transceivers are interleaved to reduce interference, then SINR is improved, but device complexity increases
Solution Approach 1:
The patent segments transceivers into distinct groups (first transceivers and second transceivers) with different frequency assignments, making the interference management task more manageable by breaking down the complex multi-frequency interference problem into simpler, separated frequency channels that can be independently optimized.
Data Source
AI summary
A cell site can be configured to have a first group of antennas arranged to provide coverage around the cell site and a second group of interleaved antennas that are interleaved between the antennas of the first group. The two groups can communicate at different frequency sets so that the two groups do not interfere with one another. Service nulls of one group that would otherwise be created by interference and low RSSI between antennas from the same group can be covered by the main beam of the other group, which can significantly improve SINR.