Dynamic Waveform Selection for Wireless Network Adaptation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wireless networks are limited by using a single statically selected waveform, which is not optimal for all conditions and situations, leading to inefficiencies and reduced performance due to inability to adjust to changes in network conditions and traffic requirements.
Innovation Solution
A mechanism for adapting between various waveforms based on network conditions and traffic requirements, allowing multiple waveforms to coexist in a single channel by scheduling different time-frequency resources, and selecting the appropriate waveform for data transmission based on traffic characteristics and capabilities of user equipment and transmit points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single waveform type is used for all communications, then system complexity is reduced and implementation is simplified, but network performance and adaptability are limited
Solution Approach 1:
The patent implements dynamic waveform selection where the waveform type is not fixed but changes based on current network conditions, traffic requirements, and channel characteristics. The system dynamically adapts between different waveform types (e.g., OFDMA, SC-FDMA, DFT-S-OFDM) to optimize performance for varying conditions, making the system flexible and responsive rather than static.
Solution Approach 2:
The patent changes the fundamental parameter of waveform type based on operational conditions. By selecting from multiple waveform types with different characteristics (single-carrier vs. multi-carrier, different access schemes), the system adjusts its operational parameters to match traffic demands, channel conditions, and quality of service requirements, thereby resolving the contradiction between simplicity and adaptability.
2Productivity
If waveform selection is dynamically adapted to network conditions, then network performance and efficiency are improved, but system complexity and implementation difficulty increase
Solution Approach 1:
The patent employs feedback mechanisms where the system continuously monitors network conditions, channel quality, traffic characteristics, and performance metrics. Based on this feedback, the waveform selection is dynamically adjusted. The system evaluates current conditions and selects the most appropriate waveform type, creating a closed-loop control system that optimizes performance while managing complexity through intelligent decision-making.
Solution Approach 2:
The patent creates a universal waveform selection mechanism that can handle multiple waveform types and various network conditions through a single integrated framework. The system is designed to support multiple access schemes and waveform types within one architecture, allowing it to universally adapt to different scenarios without requiring separate specialized systems for each waveform type.
3Adaptability or versatility
If multiple waveform types are supported, then adaptability to different traffic characteristics and channel conditions is improved, but signal processing complexity and computational requirements increase
Solution Approach 1:
The patent segments the waveform processing into distinct functional blocks and modules, each handling specific waveform types or processing tasks. By dividing the complex multi-waveform processing system into manageable segments (e.g., separate processing paths for different waveform types, modular signal processing functions), the system can support multiple waveform types while keeping each processing module relatively simple and manageable.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems, methods, and apparatuses for providing waveform adaptation are provided. In an example, a method is provided for identifying a plurality of candidate waveforms, and selecting one of the candidate waveforms for data transmission. The candidate waveforms may be identified in accordance with one or more criteria, such as a transmission capability of the transmitting device, a reception capability of the receiving device, a desired Peak-to-Average-Power-Ratio (PAPR) characteristic, adjacent channel interference (ACI) rejection requirements, spectrum localization requirements, and other criteria. The waveform selected for data transmission may be selected in accordance with one or more waveform selection criteria, such as traffic characteristic, application types, etc.