Multi-Beam Radio Resource Management in Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing radio resources and beam management in multi-beam operations, particularly in providing optimal coverage and quality of service for both downlink and uplink transmissions in New Radio (NR) networks.
Innovation Solution
The implementation of advanced radio access network architectures, including multi-beam operations and bandwidth adaptation, where base stations perform beam sweeping and wireless devices measure beam quality using reference signals, and dynamic bandwidth configuration to optimize resource allocation and transmission numerologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-beam operations are implemented to improve coverage and beam management, then the quality of service and coverage are improved, but the device complexity and scheduling requirements increase
Solution Approach 1:
The patent segments the beam management process into distinct phases: beam sweeping for initial measurement, beam selection based on quality metrics, and maintained beam communication. This segmentation allows complex multi-beam operations to be broken down into manageable steps, reducing the cognitive load on the scheduling entity while maintaining high service quality through continuous beam optimization.
2Productivity
If dynamic bandwidth configuration is used to optimize resource allocation, then productivity and resource efficiency are improved, but the device complexity and control overhead increase
Solution Approach 1:
The patent implements dynamic bandwidth configuration where the scheduled entity can request and the scheduling entity can allocate different bandwidth resources based on real-time channel conditions and service requirements. This dynamic adjustment optimizes resource utilization by matching available spectrum to actual communication needs, improving productivity while the automated nature of the process minimizes manual configuration complexity.
3Measurement precision
If beam sweeping and measurement procedures are performed to improve beam quality assessment, then the measurement precision and beam selection accuracy are improved, but the loss of time and power consumption increase
Solution Approach 1:
The patent employs periodic beam sweeping where the scheduling entity transmits reference signals in systematic periodic intervals across different beams. This periodic transmission pattern allows the scheduled entity to measure and report beam qualities at regular intervals, achieving sufficient measurement precision for accurate beam selection while limiting total measurement time through controlled periodicity rather than continuous scanning.
Solution Approach 2:
The patent implements a feedback mechanism where the scheduled entity measures beam qualities during beam sweeping, reports these measurements to the scheduling entity, and the scheduling entity uses this feedback information to select optimal beams and configure communication parameters. This feedback loop enables precise beam quality assessment while the efficiency of the feedback-processing system minimizes overall time loss.
4Reliability
If advanced radio access network architectures are deployed to improve coverage and service quality, then the quality of service and coverage are improved, but the use of energy and system resources increase
Solution Approach 1:
The patent utilizes parameter changes in the radio access network architecture, including adjusting beam directions, modifying bandwidth configurations, and varying transmission parameters based on channel conditions. These dynamic parameter adjustments enable the system to maintain high service quality and coverage while optimizing energy consumption by activating only the necessary beams and resources for each communication session rather than maintaining all systems at full power.
Data Source
AI summary
A second base station receives, from a first base station, a message indicating that a packet data unit session of a wireless device is allowed in an area. The second base station sends, to the first base station, in response to the message, radio resource control configuration parameters of one or more cells determined based on the area.