Hybrid Multiple Access Resource Allocation for NOMA and RaSMA
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Solution Overview
Problem
Conventional wireless communication networks do not support the configuration of time-frequency resources for non-orthogonal multiple access (NOMA) and rate split multiple access (RaSMA), leading to inefficiencies in hybrid multiple access schemes.
Innovation Solution
Implementing a hybrid multiple access scheme that allocates orthogonal and non-orthogonal time-frequency resources, using a multi-stage decoding process for reliable communication, and employing physical layer enhancements for transmitter and receiver devices across various radio access technologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional wireless communication networks are used without hybrid MA configuration, then network compatibility is maintained, but communication efficiency and capacity are limited
Solution Approach 1:
The patent segments time-frequency resources into orthogonal regions and non-orthogonal regions, allowing different multiple access schemes (OMA and NOMA) to operate simultaneously on different resource portions. This segmentation enables hybrid MA deployment without requiring complete network overhaul, thus improving communication efficiency while managing complexity through modular resource allocation
Solution Approach 2:
The patent introduces dynamic resource allocation mechanisms where the network can flexibly configure and switch between orthogonal and non-orthogonal resource regions based on traffic conditions, channel quality, and user requirements. This dynamic approach allows the system to adaptively optimize communication efficiency while maintaining compatibility with conventional networks
2Quantity of substance
If non-orthogonal multiple access is implemented, then resource utilization and capacity are improved, but interference management and decoding complexity increase
Solution Approach 1:
The patent segments the message into common message streams and private message streams, which are transmitted over non-orthogonal resources. User equipment performs successive interference cancellation by first decoding common messages, then using them to cancel interference before decoding private messages. This segmentation approach improves resource utilization while managing decoding complexity through structured message decomposition
Solution Approach 2:
The patent introduces common message streams as intermediaries that are decoded by all user equipment before private message decoding. These common messages serve as a mediator that helps user equipment perform interference cancellation, thereby enabling non-orthogonal resource utilization while providing a systematic approach to managing decoding complexity through the intermediary common message layer
Data Source
AI summary
Various aspects of the present disclosure relate to physical layer enhancements for both transmitter devices (e.g., NEs) and receiver devices (e.g., UEs), such as enhancements to procedures and/or signaling during hybrid multiple access operations over networks supporting various radio access technologies. For example, the present disclosure introduces time-frequency domain resource allocation for hybrid MA, time domain resource allocation for hybrid MA, frequency domain allocation for hybrid MA, and spatial domain resource allocation for hybrid MA.