Radio Transmission Pause Mechanism for Urgent Message Priority

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Solution Overview

Problem

In wireless communication systems, there is a need to temporarily pause ongoing transmissions to allow for the transmission of short control or data messages without completely terminating the existing communication, especially when all channels are occupied.

Innovation Solution

A method and system that allow a transmitting radio to pause its transmission for a specified period by sending a 'request to pause' signal on the reverse channel, enabling other radios to transmit messages during this time, with the pause duration determined by the length of the message to be sent.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a transmitting radio continues transmission on a forward channel, then communication continuity is maintained, but urgent or priority messages cannot be transmitted when all channels are occupied

Engineering Contradiction:
Improvecommunication continuityVSAvoidability to transmit urgent messages
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system dynamically adjusts the transmission state of the forward channel by introducing a pause mechanism. When a pause request is received on the reverse channel, the transmitting radio temporarily suspends transmission, allowing the channel to be reallocated for urgent messages, then resumes the original transmission after the pause period expires.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The reverse channel acts as an intermediary control mechanism that mediates between the need to maintain ongoing transmissions and the need to accommodate urgent messages. By sending pause requests through the reverse channel, the system enables coordination without directly interrupting the forward channel transmission flow.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a transmitting radio is completely terminated to allow another message transmission, then urgent messages can be sent, but the ongoing transmission is lost

Engineering Contradiction:
Improveability to transmit urgent messagesVSAvoidongoing transmission continuity
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Instead of completely terminating the ongoing transmission, the system applies partial action by pausing transmission only for the duration necessary to accommodate the urgent message. This partial suspension allows the urgent message to be transmitted while preserving the original transmission for resumption afterward.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system performs preliminary action by establishing a pause mechanism before complete termination would occur. The pause request is sent in advance, allowing the transmitting radio to temporarily hold its transmission state, enabling urgent message transmission without committing to full termination of the ongoing communication.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If all forward channels are continuously used for ongoing transmissions, then communication efficiency is maximized, but no channel is available for urgent or priority messages

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidchannel availability for urgent messages
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system implements periodic action by introducing scheduled pause periods in the transmission cycle. During these periodic pauses, triggered by reverse channel requests, the forward channel becomes available for urgent messages while maintaining overall communication efficiency through structured time management.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS8259690B2System and method for pausing an ongoing transmission in a communication system
Publication Date: 2012.09.04 MOTOROLA SOLUTIONS INC

AI summary

A system and method for pausing communications from a transmitting radio for a certain period of time in order to allow transmission of other messages. When a first radio determines that a message needs to be transmitted either to a second radio or the transmitting radio, the first radio determines whether there are any available forward channels to transmit the call. If no forward channel is available, the first radio determines a period of time required to transmit the message and sends, on a reverse channel, a “request to pause” signal to the transmitting radio identifying that period of time. Upon receiving the “request to pause” signal, the transmitting radio ceases transmission on the forward channel for the specified period of time, during which time the first radio transmits the message.