MICO Mode Delay Timer for Wireless Communication Reliability

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Solution Overview

Problem

In conventional 5G wireless communication systems, user equipment (UE) in MICO mode cannot predictively wake up for incoming data or messages, leading to missed communications from the network side or other UEs due to unpredictable timing, necessitating improvements for power-saving and data integrity.

Innovation Solution

A communication method involving a delay timer mechanism where the network entity determines and sets a time length for the MICO mode, allowing the UE to wake up and receive paging when the timer expires, synchronizing download timing with the network equipment to prevent missed data and reduce signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If UE enters MICO mode to save power, then power consumption is reduced, but data reception reliability deteriorates due to unpredictable timing

Engineering Contradiction:

Improvepower consumptionVSAvoiddata reception reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The network side performs preliminary actions by determining the delay timer time length before the UE enters MICO mode, and pages the UE in advance when the timer expires. This ensures the UE wakes up at the correct time to receive data, resolving the contradiction between power saving and reliable data reception.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The network side receives a request message from the UE to enter MICO mode, determines an appropriate delay timer time length based on this request, and uses this feedback to schedule paging at the optimal time. This feedback mechanism ensures the UE wakes up when data is available, maintaining reliability while enabling power saving.

Inventive Principle:

Principle #23Feedback

2Use of energy by moving object

If UE stays in idle mode to save power, then power consumption is reduced, but communication timing becomes unpredictable leading to missed messages

Engineering Contradiction:

Improvepower consumptionVSAvoidmissed messages

Core Design Contradiction:

Use of energy by moving objectVSLoss of information

Solution Approach 1:

The network side implements periodic action by paging the UE at regular intervals based on the determined delay timer time length. This periodic paging ensures the UE wakes up at predictable times to receive messages, preventing information loss while maintaining power-saving operation during the MICO mode period.

Inventive Principle:

Principle #19Periodic action

3Reliability

If UE wakes up frequently to check for data, then data reception reliability is improved, but power saving effect deteriorates

Engineering Contradiction:

Improvedata reception reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The network side changes the parameter of delay timer time length based on the UE's request to enter MICO mode. By optimizing this time length parameter, the system ensures the UE wakes up at the most appropriate time to receive data, achieving both reliable data reception and maximum power saving by avoiding unnecessary wake-ups.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11838887B2Communication method of network entity and related wireless communication system

Publication Date: 2023.12.05 MAMMOTH LICENSING LLC

AI summary

A communication method of a network entity for a network equipment includes the steps of: receiving a request message of entering a mobile initiated connection only (MICO) mode from a user equipment (UE); determining a time length of a delay timer of the MICO mode according to the request message; and paging the UE when the delay timer of the MICO expires.