Millimeter Wave Beamforming Resource Allocation
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Solution Overview
Problem
Millimeter wave communication systems face challenges in increasing radio distance and coverage due to high wave path loss, which is exacerbated by the need for spectral efficiency improvements and the difficulty in securing wide frequency bands, particularly in the <5 GHz range used in mobile communication systems.
Innovation Solution
The implementation of BeamForming (BF) technology using a plurality of antennas to concentrate signals in specific directions, combined with the allocation of different frequency-time resources for common/control and data channels, allowing for optimal antenna gain and reduced interference, thereby increasing radio distance and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If BeamForming technology is used to concentrate signals in specific directions, then antenna gain and radio distance are improved, but device complexity increases due to the need for multiple antennas and resource allocation mechanisms
Solution Approach 1:
The patent divides the frequency band into multiple sub-bands and allocates different beamforming resources to different sub-bands. This segmentation allows the system to manage complexity by handling smaller, divided frequency resources rather than managing the entire band with a single complex beamforming system, thus enabling improved radio distance through beamforming while controlling device complexity through resource division.
Solution Approach 2:
The patent implements dynamic beamforming resource allocation where the system can adaptively assign different beamforming parameters, frequency resources, and time slots to different channels based on current communication conditions. This dynamic approach allows the system to optimize antenna gain for each specific transmission while managing overall system complexity through flexible, condition-based resource management.
2Productivity
If different frequency-time resources are allocated for common/control and data channels, then spectral efficiency is improved, but device complexity increases due to resource management overhead
Solution Approach 1:
The patent segments frequency resources into distinct sub-bands and time resources into different slots, allocating specific segments to common/control channels and data channels. This segmentation improves spectral efficiency by enabling simultaneous transmissions on different resources while managing complexity through structured, divided resource allocation rather than unmanaged full-band access.
Solution Approach 2:
The patent applies different beamforming parameters and resource allocation strategies tailored to specific channel types (common/control vs. data). By optimizing resources locally for each channel type according to its specific requirements, the system achieves improved spectral efficiency while managing complexity through specialized, targeted resource management rather than uniform handling of all channels.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances spectral efficiency and reduces system overhead by differentiating transmission methods for each channel, ensuring reliable signal reception and increased coverage in millimeter wave communication systems.
Implementation Method 1
transmission BF is a method for concentrating signals transmitted from each antenna in a specific direction using a plurality of antennas
Implementation Method 2
reception BF is a method for concentrating reception of radio waves in a specific direction to increase the signal reception sensitivity in a relevant direction and excludes signals in other directions than the relevant direction
Data Source
Figure 1
Figure 2~3
Figure 4a
AI summary
A method and an apparatus for operating a transmitter in a millimeter wave communication system is provided. In the method, information of a common and/or control channel is mapped to a dedicated frequency region of a dedicated Radio Frequency (RF) path. Data is mapped to a common frequency region for a common RF path.