Mapping Data Flows to Physical Layer Technologies
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Solution Overview
Problem
Existing data transmission methods fail to fully utilize spectrum resources as they do not allow for the selection of different physical layer transmission technologies for multiple data flows from the same user equipment, leading to inefficient transmission.
Innovation Solution
A communication device and method that maps data flows to corresponding physical layer transmission technologies, such as UFMC, FBMC, GFDM, or OFDM, using a processor to generate and schedule transport blocks based on data flow identifiers, enabling the use of different transmission technologies for each flow and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple data flows from the same user equipment are multiplexed at MAC layer without physical layer differentiation, then device complexity is reduced and ease of operation is improved, but spectrum resource utilization deteriorates and transmission efficiency is reduced
Solution Approach 1:
The patent segments the handling of multiple data flows by introducing data flow identifiers and mapping them to different physical layer transmission technologies. Instead of treating all data flows uniformly at the physical layer, the system divides them into separate processing streams, allowing each flow to be optimized independently while maintaining overall system manageability.
Solution Approach 2:
The patent implements dynamic selection of physical layer transmission technologies based on data flow characteristics, service types, and channel conditions. The mapping between data flow identifiers and physical layer technologies can be dynamically adjusted, allowing the system to adapt to changing transmission requirements and optimize performance in real-time.
2Adaptability or versatility
If a single physical layer transmission technology is used for all data flows, then device complexity is reduced and implementation is simplified, but adaptability to different service requirements deteriorates and spectrum resource utilization is reduced
Solution Approach 1:
The patent creates a universal framework that supports multiple physical layer transmission technologies (OFDM, SC-FDMA, UFMC, FBMC, GFDM, BFDM) within a single system. The base station and user equipment are designed to handle multiple data flows with different service requirements by mapping them to appropriate physical layer technologies, making the system versatile without requiring separate dedicated systems for each technology.
Solution Approach 2:
The patent applies different physical layer transmission technologies to different data flows based on their specific requirements. Each data flow can be assigned the most suitable transmission technology locally, such as using UFMC or FBMC for services requiring low synchronization requirements, while using OFDM for services requiring high spectral efficiency, thereby optimizing performance for each local context.
3Productivity
If multiple physical layer transmission technologies are supported for different data flows, then spectrum resource utilization is improved and transmission efficiency is enhanced, but device complexity increases and implementation difficulty rises
Solution Approach 1:
The patent introduces data flow identifiers and a mapping mechanism as intermediaries between the MAC layer and physical layer processing. This intermediary layer manages the complexity of supporting multiple physical layer technologies by providing a systematic way to identify and route different data flows to their corresponding transmission technology handlers, reducing the overall system complexity.
Solution Approach 2:
The patent manages device complexity by parameterizing the selection of physical layer transmission technologies based on data flow identifiers, service types, and channel conditions. Instead of hardcoding multiple technology implementations, the system uses parameter-based selection and configuration, allowing flexible support for multiple technologies while maintaining a unified system architecture.
Data Source
Figure 1~1A
Figure 1B
Figure 1C~2
AI summary
The present invention relates to a data transmission method and a communications device. The communications device includes: a memory, a processor, and a communications interface. The memory is configured to store mapping information between a data flow identifier and a physical layer transmission technology identifier. The processor is configured to: determine a to-be-scheduled data flow; determine, from the mapping information and according to a data flow identifier of the data flow, a physical layer transmission technology identifier corresponding to the data flow; generate different transport blocks according to data flows corresponding to different physical layer transmission technology identifiers, where each physical layer transmission technology identifier is corresponding to one type of transport block; generate wireless communication data by performing processing, according to a physical layer transmission technology corresponding to the physical layer transmission technology identifier, on a transport block corresponding to the physical layer transmission technology identifier; and send the wireless communication data to a receive end by using the communications interface.