NR Signal Multiplexing for OOK Spectral Efficiency
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Solution Overview
Problem
Existing NR systems face low network resource utilization due to the low spectral efficiency of OOK modulation, leading to inefficient multiplexing of channels or signals.
Innovation Solution
A method to multiplex NR channels or signals for OOK signals by determining available time and frequency domain resources, avoiding resources occupied by preset signals like SSB, DMRS, and CRS, while ensuring NR performance through specific indication information and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If OOK modulation is used to save energy, then power consumption is reduced, but spectral efficiency deteriorates
Solution Approach 1:
The patent merges OOK signals with existing NR channels and signals by multiplexing them in the time-frequency domain. The network device transmits both NR signals and OOK signals simultaneously on overlapping time-frequency resources, combining two different communication functions into a unified system to improve spectral efficiency while maintaining the low-power advantage of OOK modulation.
Solution Approach 2:
The patent enables existing NR channels and signals to serve dual purposes: they can carry traditional NR data communication functions while simultaneously serving as carriers for OOK signals. This multi-functionality allows the system to utilize existing infrastructure for multiple purposes, improving overall spectral efficiency without requiring dedicated OOK resources.
2Productivity
If NR channels or signals are multiplexed for OOK signals, then network resource utilization is improved, but NR performance may deteriorate
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different time-frequency resources. Certain time-frequency resources are designated for OOK signal transmission, while others are reserved for NR signals. This localized allocation ensures that OOK signals can be multiplexed onto NR channels without degrading NR performance in areas where NR signals are transmitted.
Solution Approach 2:
The patent segments the time-frequency resource space into distinct regions for different signal types. By dividing the available resources and assigning specific segments to OOK signals and others to NR signals, the system achieves efficient multiplexing while maintaining the performance requirements of NR communications in their designated segments.
3Productivity
If time domain resource is allocated for OOK signals, then resource utilization is improved, but signaling overhead increases
Solution Approach 1:
The patent applies partial action by providing terminal devices with partial information about available time-domain resources through indication information. Instead of requiring complete resource allocation details, the system transmits only the necessary indication bits to convey resource availability, reducing signaling overhead while enabling sufficient resource allocation for OOK signals.
Data Source
AI summary
A signal transmission method and an apparatus are provided. The method includes: determining a time domain resource available to a first signal, where the time domain resource available to the first signal does not include a first resource; and sending the first signal to a terminal device based on a frequency domain resource occupied by the first signal and the available time domain resource. In the foregoing method, considering that the first resource can ensure that NR performance is not affected, the first signal is sent based on the time domain resource available to the first signal and the frequency domain resource occupied by the first signal. The time domain resource available to the first signal and the frequency domain resource occupied by the first signal can multiplex time-frequency resources of existing NR signals, thereby improving network resource utilization.