Burst Data Transmission for Low-Power Mobile TV Reception

Solution Overview

Problem

The ATSC A/53 digital television broadcasting standard requires continuous data processing, leading to significant power consumption in receivers, particularly in mobile devices where power management is crucial due to limited internal power sources.

Innovation Solution

A method where a transmitter separates data into two streams: a first stream for continuous transmission and a second stream for intermittent transmission, allowing receivers to enter a power-saving mode between bursts, thereby reducing power consumption in mobile devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If continuous data transmission is used according to ATSC A/53 standard, then high data transfer rate is provided, but power consumption requirements of the demodulator become significant

Engineering Contradiction:

Improvedata transfer rateVSAvoidpower consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

The patent segments the data transmission into two distinct types: continuous-mode transmission for terrestrial television programming and burst-mode transmission for mobile device data. This segmentation allows the receiver to process different data types using different power consumption strategies, resolving the contradiction between maintaining high data transfer rates and reducing power consumption.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies different transmission characteristics to different data streams based on their intended recipients. Terrestrial television data uses continuous transmission with high data rates, while mobile device data uses burst transmission with lower rates and longer intervals. This local differentiation allows each data type to be optimized for its specific requirements without compromising the other.

Inventive Principle:

Principle #3Local quality

2Productivity

If continuous demodulation is performed to handle large data quantities, then data processing requirement is met, but power consumption increases significantly

Engineering Contradiction:

Improvedata processing capabilityVSAvoidpower consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic burst transmission for mobile device data, where data is transmitted in intermittent bursts separated by longer time intervals. This allows the receiver to process data during bursts and then enter power-saving modes, maintaining adequate data processing capability while significantly reducing average power consumption compared to continuous demodulation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent makes the transmission system dynamic by allowing the receiver to adjust its operational state based on the transmission type. For burst-mode data, the receiver can dynamically transition between active demodulation during bursts and power-saving modes between bursts, optimizing the balance between data processing and power consumption.

Inventive Principle:

Principle #15Dynamics

3Use of energy by moving object

If burst transmission with long time intervals is used for mobile devices, then power saving mode can be entered, but data transfer rate decreases

Engineering Contradiction:

Improvepower consumptionVSAvoiddata transfer rate

Core Design Contradiction:

Use of energy by moving objectVSSpeed

Solution Approach 1:

The patent applies different transmission characteristics to different data streams based on their intended recipients. Terrestrial television data uses continuous transmission with high data rates, while mobile device data uses burst transmission with lower rates and longer intervals. This local differentiation allows each data type to be optimized for its specific requirements without compromising the other.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent segments the data transmission into two distinct types: continuous-mode transmission for terrestrial television programming and burst-mode transmission for mobile device data. This segmentation allows the receiver to process different data types using different power consumption strategies, resolving the contradiction between maintaining high data transfer rates and reducing power consumption.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS8315314B2Method and apparatus for transmitting data

Publication Date: 2012.11.20 INTERDIGITAL CE PATENT HOLDINGS SAS

AI summary

An implementation provides a transmitter that separates sequential portions of data in a first set of data by time intervals allowing a power saving mode (1005). The transmitter transmits the sequential portions of data separated by respective time intervals having lengths configured to allow a receiver to enter and exit a power saving mode between receiving sequentially transmitted portions of data from the first set of data (1010). The transmitter separates sequential portions of data in a second set by time intervals that are not of sufficient length to allow a receiver to enter and exit a power saving mode during the time intervals (1015). The second set of data is then transmitted (1020).