Dynamic Transmission Timing Allocation for Wireless Mobile Stations

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Solution Overview

Problem

Existing wireless communication systems face inefficiencies in information transmission from mobile stations to base stations due to contention over shared channels, particularly in transmission modes where polling signals overwhelm the band or transmission intervals are set based on maximum capacity rather than active stations, leading to reduced efficiency and idle periods.

Innovation Solution

A wireless communication system where the base station determines and allocates unique transmission intervals and timings for registered mobile stations based on their number, allowing them to transmit information more frequently and reducing idle periods on the shared channel.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station uses polling signals to request location information from all active mobile stations sequentially, then the base station can collect location information from each mobile station, but the polling signals oppress the band of the shared channel and reduce information transmission efficiency

Engineering Contradiction:

Improvelocation information collectionVSAvoidinformation transmission efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The base station dynamically adjusts the transmission interval based on the number of registered mobile stations. When fewer stations are registered, the interval is shortened to increase transmission frequency and efficiency. This dynamic adjustment resolves the contradiction by adapting the system behavior to current load conditions rather than using fixed polling intervals.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Mobile stations autonomously transmit location information according to their own timers and allocated time marks without requiring base station polling signals. Each station self-regulates its transmission timing based on pre-allocated parameters, eliminating the need for continuous polling and freeing up shared channel bandwidth.

Inventive Principle:

Principle #25Self-service

2Adaptability or versatility

If the transmission interval is set according to the maximum number of mobile stations that can be accommodated by the base station, then the system can accommodate up to the maximum capacity, but efficiency in information transmission decreases when fewer mobile stations are active due to idle periods

Engineering Contradiction:

Improvemobile station accommodation capacityVSAvoidinformation transmission efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The transmission interval is made dynamic rather than fixed. The base station determines the interval based on the current number of registered mobile stations, shortening it when fewer stations are active to eliminate idle periods and increase transmission efficiency, while still maintaining the ability to accommodate up to the maximum capacity when needed.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the transmission interval parameter according to the number of registered mobile stations. By adjusting this key parameter dynamically, the system optimizes information transmission efficiency for different load conditions while preserving the adaptability to handle varying numbers of mobile stations.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If the base station allocates unique transmission timings to each registered mobile station based on the number of registered stations, then information transmission efficiency is improved, but the base station must determine and manage transmission intervals and timings for each station

Engineering Contradiction:

Improveinformation transmission efficiencyVSAvoidtransmission timing management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

Mobile stations self-manage their transmission timing using pre-allocated time marks and local timers. Each station autonomously determines when to transmit based on its allocated parameters without requiring continuous base station intervention, reducing the management burden on the base station while maintaining efficient resource allocation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The base station performs preliminary allocation of time marks and transmission parameters to mobile stations during registration. This advance allocation allows mobile stations to self-regulate their transmissions without ongoing complex management, resolving the contradiction between improved efficiency and reduced management complexity.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8543127B2Mobile station registration with timing re-allocation and de-allocation

Publication Date: 2013.09.24 JVC KENWOOD CORP

AI summary

A wireless communication system includes a plurality of mobile stations and a base station which periodically receives a predetermined kind of information from one or more registered mobile stations registered in the base station among the plurality of mobile stations via a radio channel shared among the registered mobile stations. The base station determines a transmission interval of the information for the registered mobile stations in accordance with the number of the registered mobile stations, allocates transmission timings of the information for the registered mobile stations to be different among the registered mobile stations in the transmission interval, and notifies the registered mobile station of the transmission interval and the transmission timing. Each one of the registered mobile stations periodically sends out the information to the radio channel in accordance with the transmission interval and the transmission timing.