Dynamic BWP Inactivity Timer Configuration for Wireless Terminals

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Solution Overview

Problem

The existing fixed configuration of Band Width Part (BWP) inactivity timers in communication systems results in low automatic BWP rollback efficiency, necessitating improved timer configuration methods to enhance efficiency and flexibility.

Innovation Solution

A method and apparatus for dynamically configuring BWP inactivity timers, where a base station configures and communicates timer settings to a terminal, allowing for flexible timer management and power-saving automatic rollback between activated and default BWPs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a fixed configuration of BWP inactivity timer is used, then the system is simple to implement, but the automatic BWP rollback efficiency is low

Engineering Contradiction:
Improveautomatic BWP rollback efficiencyVSAvoidtimer configuration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by transitioning from a fixed BWP inactivity timer configuration to a dynamic configuration method. The base station now sends separate timer configuration information for each BWP, allowing the timer values to be adjusted independently based on different BWP characteristics and traffic conditions, thereby improving rollback efficiency without excessive complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the timer parameter configuration from a single fixed value to multiple configurable values associated with different BWPs. Each BWP can have its own inactivity timer value configured by the base station, enabling flexible parameter adjustment to optimize rollback efficiency for different bandwidth parts

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a fixed BWP inactivity timer is used, then the configuration is simple, but the flexibility of timer management is reduced

Engineering Contradiction:
Improvetimer configuration flexibilityVSAvoidconfiguration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the timer configuration by associating different inactivity timer values with different BWPs. Instead of a single unified timer configuration, each BWP can have its own timer settings, allowing independent optimization and flexible management of timer parameters across multiple bandwidth parts

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different timer characteristics for different BWPs. Each BWP can be configured with appropriate timer values suited to its specific characteristics (e.g., bandwidth size, traffic type), enabling localized optimization of timer behavior rather than a one-size-fits-all approach

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If dynamic BWP switching is enabled, then adaptability is improved, but power consumption increases due to frequent monitoring

Engineering Contradiction:
ImproveBWP switching adaptabilityVSAvoidterminal power consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent uses periodic action through the BWP inactivity timer mechanism. The timer creates periodic checkpoints to determine whether BWP switching is necessary, allowing the terminal to switch BWPs adaptively while avoiding continuous monitoring. This periodic evaluation reduces power consumption compared to continuous monitoring while maintaining switching adaptability

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS11646856B2Timing configuration method and apparatus
Publication Date: 2023.05.09 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US11646856B2 patent drawing
  • US11646856B2 patent drawing
  • US11646856B2 patent drawing

AI summary

A timing configuration method and apparatus, the method being used in a base station, the base station configuring at least one bandwidth part BWP for a terminal, and the method comprising: for a first BWP, configuring a corresponding first bandwidth part BWP inactivity timer (110); generating timer configuration information, the timer configuration information being used for indicating the use of the first BWP inactivity timer on the first BWP (120); and sending the timer configuration information to the terminal, so that the terminal uses the first BWP inactivity timer on the first BWP on the basis of the timer configuration information (130). The present method implements dynamic configuration of a BWP inactivity timer on each BWP, increasing the flexibility of timer configuration and reducing power consumption.