Communications Network Power Level Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reducing the injected power spectral density (PSD) of signals in communications channels can lead to issues where data intended for multiple receivers in a network may not be recognized by more distant nodes, particularly in multimedia home networking scenarios.
Innovation Solution
A communications network configuration where digital data is transmitted in a frequency band with first and second blocks of data conveyed at different power levels, with the second block at a lower power level intended for nearer receivers and the first block at a higher power level for both receivers, allowing for effective data transmission across the network while complying with regulatory power limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the injected power spectral density (PSD) of signals is reduced in a communications channel, then power consumption is conserved and regulatory compliance is improved, but the digital data may not be recognized by receivers located far from the transmitter
Solution Approach 1:
The digital data is segmented into multiple blocks, with at least two blocks transmitted at different power levels within the same frequency band. This segmentation allows different portions of the data to be transmitted with different power characteristics, ensuring that critical data is received by all nodes while conserving power for less critical data.
Solution Approach 2:
Different blocks of digital data are transmitted with different local power qualities. Specifically, some blocks are transmitted at higher power levels to ensure reliable reception by distant receivers, while other blocks are transmitted at lower power levels to conserve energy. This local quality differentiation resolves the contradiction between power conservation and reliable data recognition.
2Object-affected harmful factors
If the injected power spectral density (PSD) of signals is reduced in a communications channel, then conducted or radiated emissions compliance is improved, but the signal-to-noise ratio for the communications channel deteriorates
Solution Approach 1:
The power level parameter of the transmitted digital data blocks is changed dynamically. By varying the power level of different data blocks within the same frequency band, the system can comply with emissions regulations for most blocks while maintaining adequate signal-to-noise ratio for critical blocks through higher power transmission.
3Use of energy by moving object
If digital data is transmitted at a lower power level to conserve energy, then power consumption is reduced, but data intended for multiple receivers may not be heard by farther receivers
Solution Approach 1:
The data transmission is segmented into multiple blocks with different power levels. Critical data blocks that need to be received by all nodes are transmitted at higher power levels, while non-critical blocks are transmitted at lower power levels. This ensures that no information is lost at distant receivers while minimizing overall power consumption.
Solution Approach 2:
Different blocks of data are transmitted with different local power qualities appropriate to their importance and the distance of intended receivers. This local differentiation ensures that data reception completeness is maintained for all receivers without unnecessarily consuming power for all data blocks.
Data Source
Figure 1~2
AI summary
The present invention relates to a communications network, a network apparatus, and a method of communicating digital data in a communications network. A communications network comprises a transmitter and at least two receivers, the transmitter being configured to transmit digital data to the at least two receivers over a communications channel, the transmitter being further configured to transmit the digital data in a frequency band of the communications channel and such that first and second blocks of the digital data are both conveyed in the frequency band at first and second power levels respectively, the first and second power levels being different from each other.