Base Station Beam Correction for 5G Congestion Management
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Solution Overview
Problem
5G wireless communication systems using high-frequency bands face issues with communication failures and reduced throughput due to obstacles and link congestion, as existing beam selection methods based on received power are inadequate in preventing these issues.
Innovation Solution
A base station device and terminal device system that uses correction information to adjust the measurement values for evaluating transmission beams, allowing the base station to promote or inhibit the use of specific beams, thereby avoiding communication failures and throughput reduction by managing beam usage based on congestion and environmental factors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam selection is based only on received power measurement, then terminal can select beam with highest power, but communication failures occur due to obstacles and congestion is not avoided
Solution Approach 1:
The patent modifies the beam selection parameters by introducing correction values that adjust the received power measurements. These correction values account for beam width variations and congestion levels, transforming the selection criterion from raw power to corrected quality metric that reflects actual communication reliability
Solution Approach 2:
The base station provides feedback to terminals in the form of correction information about beam congestion status and quality metrics. Terminals use this feedback to adjust their beam selection, creating a closed-loop system that continuously optimizes for reliability rather than just instantaneous power
2Length of stationary object
If wide transmission beams are used to extend coverage, then transmission range increases, but received power at terminal decreases
Solution Approach 1:
The patent applies correction values that compensate for the power loss inherent in wide beam transmission. By adjusting the evaluation metric to account for beam width effects, terminals can fairly compare wide and narrow beams, selecting based on overall quality rather than raw power alone
3Productivity
If multiple terminals use the same transmission beam, then resource utilization improves, but throughput of each terminal is reduced due to congestion
Solution Approach 1:
The base station monitors beam congestion levels and provides correction information to terminals indicating which beams are congested. This feedback enables terminals to avoid congested beams and distribute themselves across multiple beams, maintaining system utilization while preventing individual terminal degradation
Solution Approach 2:
The patent implements dynamic beam selection where terminals can switch between beams based on real-time congestion feedback. This dynamic behavior allows the system to adapt to changing load conditions, redistributing terminals to maintain optimal throughput for all users
Data Source
AI summary
In order to prospectively avoid communication failures or reduction in throughput of each user terminal, thereby improving users' satisfaction with communication service, a base station is configured to control wireless communication with a terminal device by using any of multiple transmission beams formed by the base station or those formed by another base station and includes a wireless communication device and a controller configured to acquire correction information used for correcting a measurement value for evaluating reception status of each transmission beam and cause the wireless communication device to transmit the correction information to the user terminal so as to thereby promote the user terminal to use, or inhibit the user terminal from using a specific transmission beam.