Wireless Broadcast Suppression via Reservation Signal Feedback

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Solution Overview

Problem

Wireless communication systems face inefficiencies in broadcast/multicast data transmission due to the lack of a negotiation mechanism, leading to unnecessary resource usage when receivers are not available to receive the data.

Innovation Solution

A method is introduced where a reservation signal is sent to multiple receivers for scheduling a broadcast/multicast data transmission, and the transmission is suppressed if no confirmation signal is received, indicating that no receivers are available, thereby conserving channel resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If broadcast/multicast data transmission is performed without a negotiation mechanism, then the transmission can be sent to all receivers, but unnecessary channel resources are consumed when receivers are not available

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidchannel resource usage
Core Design Contradiction:
ProductivityVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by sending a reservation signal before the actual broadcast/multicast data transmission. This reservation signal allows the transmitter to check in advance whether receivers are available and interested in receiving the data. Only after receiving a confirmation signal indicating receiver availability does the transmitter proceed with the data transmission, thereby avoiding wasteful transmissions when no receivers are available.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback through a confirmation signal mechanism. Receivers that are available and interested in receiving broadcast/multicast data send a confirmation signal back to the transmitter. This feedback loop enables the transmitter to make informed decisions about whether to proceed with transmission, ensuring that channel resources are only used when there is actual demand from receivers.

Inventive Principle:
Principle #23Feedback

2Loss of energy

If a reservation signal and confirmation signal mechanism is implemented, then channel resources are conserved by avoiding unnecessary transmissions, but the device complexity increases

Engineering Contradiction:
Improvechannel resource usageVSAvoidtransmission mechanism complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by sending a reservation signal before the actual broadcast/multicast data transmission. This reservation signal allows the transmitter to check in advance whether receivers are available and interested in receiving the data. Only after receiving a confirmation signal indicating receiver availability does the transmitter proceed with the data transmission, thereby avoiding wasteful transmissions when no receivers are available.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback through a confirmation signal mechanism. Receivers that are available and interested in receiving broadcast/multicast data send a confirmation signal back to the transmitter. This feedback loop enables the transmitter to make informed decisions about whether to proceed with transmission, ensuring that channel resources are only used when there is actual demand from receivers.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS10356753B2Suppressing wireless broadcast/multicast data transmissions
Publication Date: 2019.07.16 QUALCOMM INC
  • US10356753B2 patent drawing
  • US10356753B2 patent drawing
  • US10356753B2 patent drawing

AI summary

A method, an apparatus, and a computer program product for wireless communication are described. The apparatus wirelessly transmits a reservation signal intended for a plurality of receivers for scheduling a broadcast/multicast data transmission, monitors for a confirmation signal from at least one of the plurality of receivers, wirelessly transmits the broadcast/multicast data transmission to the plurality of receivers if the confirmation signal is received, and suppresses transmission of the broadcast/multicast data to the plurality of receivers if the confirmation signal is not received. In some embodiments, the apparatus further determines at least one of a number of received confirmation signals or a signal strength of a received confirmation signal from the at least one of the plurality of receivers, and suppresses transmission of the broadcast/multicast data based on the determined at least one of the number of received confirmation signals or the signal strength of the received confirmation signal.