Beam-Based Uplink Multiplexing for 5G Resource Management
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing bandwidth and resource allocation across multiple technologies and releases, particularly in 5G networks, leading to suboptimal performance and increased complexity in supporting diverse wireless devices and base stations.
Innovation Solution
The implementation of flexible bandwidth parts (BWPs) and carrier aggregation configurations within the New Radio (NR) framework, allowing for dynamic adjustment of bandwidth and resource allocation based on device capabilities and traffic conditions, enables efficient resource management and improved network performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam-based multiplexing is implemented on uplink transmissions, then resource utilization and network efficiency are improved, but system complexity and signal management difficulty increase
Solution Approach 1:
The patent divides the uplink transmission resources into multiple beams, where each beam carries multiplexed data from different user equipments. This segmentation allows the system to handle multiple transmissions simultaneously through spatial division, improving resource utilization while maintaining manageable complexity through structured beam management
Solution Approach 2:
The patent creates a universal beam-based transmission framework that can handle multiple types of uplink transmissions (data, control information, reference signals) through a single beam structure. This multi-functional approach improves resource utilization by consolidating transmission channels while the standardized beam management procedures keep system complexity controlled
2Productivity
If multiple beams are used for uplink transmissions, then capacity and throughput are improved, but signal management and interference control become more difficult
Solution Approach 1:
The patent implements feedback mechanisms where the network monitors beam quality and transmission performance, then adjusts beam configurations, power levels, and resource allocations accordingly. This closed-loop control enables the system to maintain high throughput through multiple beams while automatically managing signal quality and interference, reducing the difficulty of signal management
Solution Approach 2:
The patent employs dynamic beam management where beam configurations, activation states, and resource allocations are continuously adjusted based on channel conditions, user mobility, and traffic demands. This dynamic adaptation allows the system to maximize throughput through optimal beam usage while automatically responding to changing signal management requirements, reducing overall management difficulty
3Use of energy by moving object
If bandwidth parts are dynamically adjusted, then energy efficiency and resource optimization are improved, but configuration complexity and overhead increase
Solution Approach 1:
The patent dynamically adjusts bandwidth part parameters (frequency location, bandwidth size, subcarrier spacing) based on user requirements, channel conditions, and network load. This parameter optimization improves energy efficiency by allocating appropriate bandwidth for each transmission scenario while the standardized parameter sets and configuration templates keep implementation complexity manageable
Solution Approach 2:
The patent implements bandwidth parts with flexible activation, where only necessary bandwidth portions are activated for specific transmissions rather than allocating full bandwidth continuously. This partial activation approach improves energy efficiency by avoiding unnecessary bandwidth usage while the on-demand activation mechanism keeps configuration complexity manageable through selective resource allocation
Data Source
AI summary
A wireless device receives downlink control information (DCI) indicating a first channel occupancy time (COT) duration associated with a first downlink reference signal (RS). The wireless device transmits, based on a second downlink RS and a listen-before-talk (LBT) type, an uplink signal during the first COT duration. The LBT type is determined among a first LBT type and a second LBT type based on whether the first downlink RS is the same as the second downlink RS.