Bandwidth Part Switching for Wireless Traffic Quality Control
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies due to varying RF characteristics across different portions of the electromagnetic spectrum, leading to suboptimal communication performance and resource utilization.
Innovation Solution
Implementing a system that dynamically switches wireless devices between bandwidth parts (BWPs) based on monitoring and comparing actual and expected traffic quality parameters to optimize communication performance and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single bandwidth part is used for communication, then device complexity is reduced, but communication performance deteriorates due to varying RF characteristics across different frequency portions
Solution Approach 1:
The patent divides the carrier bandwidth into multiple bandwidth parts (BWPs), each with different frequency resources and characteristics. The network can configure multiple BWPs for a wireless device and dynamically switch between them based on traffic requirements, thereby resolving the contradiction by segmenting the frequency resource to adapt to varying RF characteristics while maintaining manageable device complexity through standardized switching mechanisms.
Solution Approach 2:
The patent implements dynamic BWP switching where the network can instruct a wireless device to switch between different BWPs based on real-time traffic quality parameters. This dynamic adaptation allows the system to optimize communication performance for different frequency portions while maintaining a unified configuration framework, thus improving reliability without permanently increasing device complexity.
2Reliability
If multiple bandwidth parts are configured with different parameters, then communication performance is improved, but device complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the network monitors traffic quality parameters (such as throughput, latency, or error rates) for the current BWP and compares them against expected thresholds. When performance degradation is detected, the network triggers a BWP switch to a more suitable frequency portion. This feedback-driven approach automates the complexity of managing multiple BWPs, improving communication performance while keeping device complexity manageable through standardized switching procedures.
Solution Approach 2:
The patent changes key communication parameters (frequency location, bandwidth size, subcarrier spacing) by switching between pre-configured BWPs. Instead of requiring complex real-time parameter optimization, the system prepares multiple BWP configurations in advance with different parameters optimized for various RF conditions, then selects the appropriate one based on current traffic requirements. This approach improves communication performance while reducing the computational complexity compared to real-time parameter optimization.
3Productivity
If bandwidth is increased to improve throughput, then communication performance is improved, but energy consumption increases
Solution Approach 1:
The patent enables dynamic adjustment of bandwidth utilization by switching between BWPs with different bandwidth sizes. When high throughput is required, the system can switch to a wider BWP; when lower throughput suffices, it switches to a narrower BWP, thereby reducing energy consumption. This dynamic adaptation allows the system to optimize the trade-off between throughput and energy usage based on real-time traffic requirements, improving productivity while managing battery usage efficiently.
Data Source
AI summary
Systems, methods, and processing nodes for managing network communications perform and/or comprise: configuring a first bandwidth part (BWP) and a second BWP for a wireless device, wherein the wireless device is configured to communicate with an access node over the first BWP; monitoring an actual value of a traffic quality parameter for communications between the wireless device and the access node using the first BWP; determining an expected value of the traffic quality parameter for communications between the wireless device and the access node using the second BWP; and in response to a determination that the expected value of the traffic quality parameter exceeds the actual value of the traffic quality parameter, instructing the wireless device to switch from communication with the access node using the first BWP to communication with the access node using the second BWP.