5G BWP Deactivation for Bandwidth Resource Optimization
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Solution Overview
Problem
In the 5G NR system, user equipment (UE) faces challenges in efficiently managing multiple activated bandwidth parts (BWPs) to properly utilize bandwidth resources, especially when a plurality of BWPs are simultaneously activated, leading to resource wastage and inefficiency.
Innovation Solution
A method and system for deactivating a currently activated BWP based on specific conditions, such as timer expiration or activation/deactivation instructions, and switching to a pre-configured default BWP to release resources and optimize bandwidth usage, where the currently activated BWP includes a to-be-adjusted BWP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple BWPs are simultaneously activated for one UE, then the system can support larger bandwidth resources and higher throughput, but it becomes difficult to manage bandwidth resources properly and leads to resource wastage
Solution Approach 1:
The patent extracts the management of bandwidth resource release from automatic timer-based mechanisms to explicit network-controlled signaling. The gNB sends deactivation signaling to explicitly indicate which BWPs should be deactivated, allowing the UE to release bandwidth resources precisely when needed rather than relying on timer expiration. This resolves the contradiction by providing fine-grained control over bandwidth resource management while maintaining the ability to activate multiple BWPs simultaneously.
Solution Approach 2:
The patent implements feedback mechanisms where the gNB monitors UE bandwidth usage and sends activation/deactivation signaling based on current network conditions and service requirements. This feedback loop allows dynamic adjustment of activated BWPs, ensuring bandwidth resources are properly managed and not wasted while still supporting high throughput when needed.
2Productivity
If the UE deactivates activated BWPs and switches to default BWPs to release bandwidth resources, then bandwidth resources can be reused, but the UE cannot access bandwidth resources properly when needed
Solution Approach 1:
The patent applies preliminary action by having the gNB proactively send activation signaling to the UE before the UE needs to access bandwidth resources for specific services. The network predicts upcoming service requirements and pre-activates the necessary BWPs, ensuring bandwidth resources are readily available when needed while allowing other BWPs to remain deactivated for resource efficiency.
Solution Approach 2:
The patent makes the BWP activation state dynamic through network-controlled signaling. The gNB can activate or deactivate specific BWPs based on real-time service requirements, transforming the static default BWP mechanism into a dynamic resource allocation system that adapts to changing bandwidth needs while maintaining reliable access.
3Productivity
If the system supports high system bandwidth of 400 MHz in 5G NR, then larger system and user throughput can be achieved, but it becomes a great challenge for UE implementation
Solution Approach 1:
The patent segments the 400 MHz system bandwidth into multiple smaller BWP units that can be independently activated and deactivated. Instead of requiring the UE to continuously process the entire 400 MHz bandwidth, the system divides it into manageable portions (BWPs) and only activates those needed for current services, significantly reducing UE implementation complexity while maintaining high throughput capability when multiple BWPs are activated.
Solution Approach 2:
The patent changes the operational parameters of the UE by dynamically adjusting the active bandwidth through BWP activation/deactivation. The UE transitions between different bandwidth states based on service requirements, allowing the system to achieve high throughput (400 MHz) when needed while keeping UE complexity low during normal operation with smaller active BWPs.
Data Source
AI summary
A bandwidth adjustment method, a mobile terminal, a network side device, and a computer storage medium are provided in the present disclosure. The bandwidth adjustment method includes: deactivating a currently activated bandwidth part BWP based on a deactivation condition, and switching to a pre-configured default BWP; where the currently activated BWP includes a to-be-adjusted BWP in the currently activated BWP.