Dynamic Waiting Time Duration Setting for Mobile Terminal Data Reception

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Solution Overview

Problem

In mobile terminals, the fixed waiting time duration for data transmission stages can lead to incorrect data reception due to varying line impedance, causing deviations from the standard time ranges stipulated by the MIPI protocol.

Innovation Solution

A method and apparatus that dynamically determine and store a to-be-used waiting time duration by controlling a target component to send preset data multiple times with different waiting time durations, identifying the maximum and minimum durations for correct data reception, and adjusting accordingly to accommodate line impedance variations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed waiting time duration is used for data transmission, then the device complexity is reduced and ease of operation is improved, but the reliability of data reception deteriorates due to line impedance variations

Engineering Contradiction:
Improvedata reception accuracyVSAvoidwaiting time setting complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by transitioning from a fixed waiting time duration to a dynamic adjustment mechanism. The waiting time is no longer static but is adjusted based on detected signal characteristics (LP-00 stage duration). The processor dynamically modifies the waiting time duration according to actual transmission conditions, allowing the system to adapt to line impedance variations while maintaining reliable data reception.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by modifying the waiting time duration parameter based on detected signal parameters. Specifically, the system measures the duration of the LP-00 stage and uses this information to adjust the waiting time parameter accordingly. This parameter adaptation allows the system to compensate for line impedance variations without increasing overall device complexity.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the waiting time duration is adjusted to accommodate line impedance variations, then the reliability of data reception is improved, but the ease of operation deteriorates due to additional testing and measurement requirements

Engineering Contradiction:
Improvedata reception accuracyVSAvoidwaiting time configuration
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies self-service by enabling the system to automatically determine and adjust its own waiting time duration without external intervention. The processor autonomously detects the LP-00 stage duration, calculates the appropriate waiting time, and configures this parameter automatically. This self-configuration process eliminates the need for manual testing and measurement, making the system easier to operate while maintaining high reliability.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent implements feedback by using the detected LP-00 stage duration as feedback information to adjust the waiting time duration. The system continuously monitors the actual signal characteristics and uses this feedback to optimize the waiting time parameter. This closed-loop approach ensures reliable data reception while automating the configuration process, thereby improving ease of operation.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If multiple sample terminals are tested to determine waiting time duration, then the adaptability to different devices is improved, but the loss of time increases due to extensive testing

Engineering Contradiction:
Improvedevice-specific optimizationVSAvoidtesting time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by performing the waiting time duration determination automatically as part of the initial system setup or first data transmission sequence. Rather than requiring separate, time-consuming testing sessions, the system proactively detects and configures the optimal waiting time during normal operation initialization. This preliminary configuration achieves device-specific optimization without significant time loss.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent enables each terminal to automatically determine its own optimal waiting time duration through self-service mechanisms. Each device independently detects its specific signal characteristics and configures appropriate parameters without requiring external testing or calibration. This self-determination approach achieves full adaptability to different devices while eliminating the time loss associated with manual testing of multiple samples.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10187498B2Method and apparatus for setting waiting time duration
Publication Date: 2019.01.22 XIAOMI INC
  • US10187498B2 patent drawing
  • US10187498B2 patent drawing
  • US10187498B2 patent drawing

AI summary

A method for setting a waiting time duration includes: controlling a target component to send preset data to a processor a plurality of times, and controlling the processor to receive the preset data sent by the target component each time based on a different waiting time duration; determining, from the different waiting time durations, a maximum waiting time duration and a minimum waiting time duration that are used by the processor for correctly receiving the preset data; and determining and storing a to-be-used waiting time duration according to the maximum waiting time duration and the minimum waiting time duration.