Multi-Active Bandwidth Parts in Fragmented Carriers
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Solution Overview
Problem
Legacy 3GPP networks allow only one bandwidth part to be active at a time, limiting simultaneous uplink and downlink transmissions, which restricts data exchange capacity.
Innovation Solution
Implementing mechanisms to support multiple active bandwidth parts within a cell, allowing simultaneous operation of two or more bandwidth parts for enhanced data exchange capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only one bandwidth part is active at a time in legacy 3GPP networks, then device complexity is reduced and operation is simplified, but data transmission capacity and network performance are limited
Solution Approach 1:
The patent divides the carrier bandwidth into multiple bandwidth parts (BWPs), allowing simultaneous activation of multiple BWPs within a single cell. This segmentation enables parallel data transmission across different bandwidth segments, thereby increasing overall data transmission capacity while maintaining manageable complexity through structured BWP configuration and activation mechanisms.
2Productivity
If multiple bandwidth parts are activated simultaneously, then uplink and downlink data exchange capacity increases, but control signaling overhead and resource management complexity increase
Solution Approach 1:
The patent implements a unified BWP configuration framework that can simultaneously manage multiple active BWPs with different functions (uplink, downlink, varied bandwidths). This multi-functional approach allows the system to handle diverse transmission requirements across multiple BWPs while using a single configuration mechanism, reducing the need for separate control signaling for each BWP and thereby minimizing control overhead.
3Adaptability or versatility
If four bandwidth parts are configured but only one is active, then configuration flexibility is provided, but resource utilization efficiency is reduced
Solution Approach 1:
The patent introduces dynamic BWP activation and deactivation mechanisms that allow the network to flexibly switch between one or multiple active BWPs based on real-time traffic demands and network conditions. This dynamic approach maintains configuration flexibility by allowing up to four BWPs to be configured while enabling efficient resource utilization by activating only the necessary number of BWPs at any given time, thus avoiding the waste of having four configured but only one active.
Data Source
AI summary
The present application relates to devices and components including apparatus. systems, and methods to support two or more active bandwidth parts in cells of wireless communication systems.