Configurable MIMO Stream Encoding for Wireless Link Reliability
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Solution Overview
Problem
Wireless devices operating under a shared communication standard often face reduced performance or inability to communicate effectively due to disparate operational constraints, as adaptations suited to certain environments may not be suitable for others.
Innovation Solution
A method in a transmitter station that generates payload data and selects modulation schemes and encoding modes based on supported capabilities between devices, allowing for configurable MIMO processing by selecting the appropriate number of transmit streams and encoding modes, such as single-encoder or per-stream encoding, to adapt to varying operational conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices implement fixed MIMO processing adaptations suited to certain operational constraints, then performance is improved under those specific conditions, but performance deteriorates or communication fails under different operational constraints
Solution Approach 1:
The patent implements dynamic MIMO processing by allowing the transmitter to select between single-encoder mode and per-stream encoder mode based on current operational conditions. The system dynamically adjusts the number of transmit streams and encoding configurations rather than being fixed to a single mode, enabling adaptation to varying channel conditions, device capabilities, and environmental factors.
Solution Approach 2:
The system changes key parameters including the number of transmit streams (from 1 to multiple streams), encoding mode (single-encoder vs. per-stream encoder), and modulation schemes based on operational constraints. These parameter adjustments allow the same device to optimize performance across different scenarios without requiring separate hardware adaptations.
2Adaptability or versatility
If configurable MIMO processing with multiple encoding modes is implemented, then adaptability to different operational constraints is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal MIMO processing framework where a single device can perform multiple encoding modes (single-encoder and per-stream encoder) and support varying numbers of transmit streams. This multi-functional capability allows one device design to serve multiple operational scenarios, reducing the need for separate specialized hardware for different conditions.
Solution Approach 2:
The system segments the encoding process into distinct modes (single-encoder mode and per-stream encoder mode) that can be independently selected. This segmentation allows the device to break down the complex MIMO processing into manageable, selectable components, making the complexity controllable and adaptable rather than monolithic and fixed.
Data Source
AI summary
A method in a transmitter station includes: generating payload data for transmission to a receiver station via a plurality of antennae of the transmitter station; selecting a number of transmit streams for transmission of the payload data; selecting respective modulation schemes for each of the transmit streams; according to the modulation schemes and to an active one of (i) a single-encoder mode and (ii) a per-stream encoder mode, generating the number of coded, modulated transmit streams; wherein each coded, modulated transmit stream contains a portion of the payload data; and providing the coded, modulated transmit streams to respective ones of the antennae for transmission to the receiver station.