Simultaneous Multi-Segment Data Transmission via Segmented PHY Processing
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Solution Overview
Problem
Current wireless communication systems, such as IEEE 802.11 Standards, face limitations in maximizing data throughput due to constraints in using the same PHY parameters for simultaneous transmission across multiple frequency segments, leading to inefficient spectrum use and robustness issues.
Innovation Solution
The implementation of synchronized MAC processors and PHY processors on integrated circuit devices generates aggregated MAC protocol data units (A-MPDUs) for simultaneous transmission over multiple frequency segments, allowing for different PHY parameters like frequency bandwidth, modulation, and coding schemes to be used for each segment, enabling more efficient and robust transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same PHY parameters are used for simultaneous transmission across multiple frequency segments, then device complexity is reduced, but data throughput and spectrum efficiency deteriorate
Solution Approach 1:
The patent divides the aggregate channel into multiple frequency segments (first frequency segment and second frequency segment), each processed by separate synchronized MAC processors and PHY processors. This segmentation allows independent optimization of PHY parameters for each segment, enabling different modulation schemes, coding rates, and bandwidth allocations to maximize throughput in each segment while maintaining manageable device complexity through modular processor architecture.
Solution Approach 2:
The patent applies local quality by allowing different PHY parameters to be used in different frequency segments based on their specific channel characteristics. Each frequency segment can be optimized independently with appropriate modulation and coding schemes tailored to its signal quality and interference conditions, thereby improving overall system productivity without requiring uniform complex configuration across all segments.
2Reliability
If different PHY parameters are used for each frequency segment, then spectrum efficiency and transmission robustness are improved, but device complexity increases
Solution Approach 1:
The patent segments the transmission system into multiple independent processor pairs (MAC processor and PHY processor for each frequency segment), allowing each segment to operate with optimized PHY parameters for improved reliability. The segmentation isolates complexity within modular units while maintaining overall system coordination through synchronization mechanisms.
Solution Approach 2:
The patent merges multiple frequency segments into a single aggregate channel, combining the outputs of separate PHY processors into unified data transmission. This merging approach allows the system to benefit from both the individual optimization of each segment (improving reliability) and the aggregated throughput capacity, while the synchronization of MAC processors ensures coordinated operation across all segments.
3Area of stationary object
If multiple sub-channels are aggregated in different RF bands, then frequency bandwidth is increased, but transmission coordination becomes more difficult
Solution Approach 1:
The patent segments the aggregate channel across different RF bands into distinct frequency segments, each handled by dedicated synchronized MAC and PHY processors. This segmentation enables the system to utilize the full available frequency bandwidth across multiple RF bands while managing coordination complexity through independent processor synchronization rather than centralized control.
Solution Approach 2:
The patent implements universal synchronized MAC processor functionality that can operate across multiple RF bands and frequency segments. Each synchronized MAC processor pair is designed to handle the same protocol operations (A-MPDU generation, timing synchronization) regardless of the specific RF band or frequency segment, enabling easy coordination across diverse frequency allocations while maintaining ease of operation through standardized processing functions.
Data Source
AI summary
A first aggregated MAC protocol data unit (A-MPDU) is generated for transmission over a first frequency segment of a communication channel, and a second A-MPDU is generated for transmission over a second frequency segment of the communication channel. A PHY protocol data unit (PPDU) is generated to include the plurality of A-MPDUs and a second PPDU is generated to include the second A-MPDU. A first transmit processor generates a first RF signal for transmission of the first PPDU over the first frequency segment and a second transmit processor generates a second RF signal for transmission of the second PPDU over the second frequency segment. The first RF signal is transmitted in the first frequency segment simultaneously with the second RF signal being transmitted in the second frequency segment.