Mode Transition Control System for Wireless Devices

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Solution Overview

Problem

The re-registration process of mobile devices from idle mode to active mode in wireless communication systems introduces significant delays in reconnecting to the network to receive pending traffic, affecting efficiency and battery conservation.

Innovation Solution

A mode transition control system that processes user-specific information to select and transfer customized mode transition sequences, allowing devices to transition directly between active, sleep, and idle modes based on quality-of-service levels, mobility factors, and network conditions, thereby optimizing network resource utilization and battery conservation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If mobile device transitions to idle mode to conserve battery power, then battery life is extended, but reconnection delay increases when pending traffic is detected

Engineering Contradiction:

Improvebattery power consumptionVSAvoidreconnection delay

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent implements dynamic mode transition by allowing mobile devices to flexibly switch between sleep mode and idle mode based on real-time network conditions and traffic patterns. The system dynamically adjusts the idle mode timer and mode selection criteria, enabling devices to transition to sleep mode faster when traffic is expected, or remain in idle mode when reconnection speed is critical, thus optimizing the balance between power conservation and reconnection delay

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes key parameters including the idle mode timer duration, sleep mode transition thresholds, and mode selection criteria based on network conditions and device state. By adjusting these parameters dynamically, the system can optimize power consumption during low-traffic periods while minimizing reconnection delay when traffic is detected, resolving the contradiction between battery conservation and reconnection speed

Inventive Principle:

Principle #35Parameter changes

2Speed

If mobile device remains in sleep mode to maintain network registration, then reconnection speed is improved, but network resource utilization decreases

Engineering Contradiction:

Improvereconnection speedVSAvoidnetwork resource utilization

Core Design Contradiction:

SpeedVSProductivity

Solution Approach 1:

The patent implements periodic monitoring of network conditions and traffic patterns to determine optimal mode transitions. The system uses periodic timers and threshold-based triggers to switch between sleep mode and idle mode, allowing devices to maintain network registration during high-traffic periods (improving reconnection speed) while transitioning to idle mode during low-traffic periods (improving resource utilization), thus balancing both objectives

Inventive Principle:

Principle #19Periodic action

3Productivity

If mobile device transitions to idle mode to release network resources, then network resource utilization is improved, but reconnection delay increases due to re-registration requirement

Engineering Contradiction:

Improvenetwork resource utilizationVSAvoidreconnection delay

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent prepares for potential reconnection by implementing predictive mechanisms that monitor traffic patterns and network conditions. Before transitioning to idle mode, the system evaluates whether pending traffic is likely and adjusts the idle mode timer accordingly. This preliminary assessment allows devices to remain in sleep mode when traffic is expected (avoiding re-registration delay) while still releasing resources when appropriate, thus resolving the contradiction between resource utilization and reconnection speed

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8144639B1Dynamic mode transition based on resource utilization and user application

Publication Date: 2012.03.27 CLEARWIRE IP HOLDINGS LLC

AI summary

A wireless communication system comprises a mode transition control system. The mode transition control system comprises a communication interface and a processing system. The communication interface is configured to receive first information for a first user. The processing system is configured to process the first information and select a first mode transition sequence for the first user, wherein the first mode transition sequence comprises an active mode to sleep mode to idle mode transition, and an idle mode to sleep mode to active mode transition. The communication interface is configured to receive second information for a second user. The processing system is configured to process the second information and select a second mode transition sequence for the second user, wherein the second mode transition sequence comprises an active mode to sleep mode transition, and a sleep mode to active mode transition. The communication interface is configured to receive third information for a third user. The processing system is configured to process the third information and select a third mode transition sequence for the third user, wherein the third mode transition sequence comprises an active mode to idle mode transition, and an idle mode to active mode transition. The communication interface is configured to transfer the first mode transition sequence to the first user for use by the first user, transfer the second mode transition sequence to the second user for use by the second user, and transfer the third mode transition sequence to the third user for use by the third user.