Split Diversity Data Combining for Mobile Radio Reception
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Solution Overview
Problem
In highly mobile environments such as intelligent transportation systems and car infotainment, radio reception quality can be severely affected by Doppler spreading and multi-path fading, leading to increased hardware requirements and costs for antenna diversity systems, which are not efficiently managed by existing technologies.
Innovation Solution
A communications system and method that employs cooperative antenna diversity by using multiple antennas and transceivers to split and combine data symbol portions, reducing memory and processing loads by distributing these tasks among devices, thereby maintaining reception quality without increasing hardware costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antenna diversity systems use more antennas and transceivers to improve reception quality, then radio reception quality improves, but hardware costs and system complexity increase
Solution Approach 1:
The patent segments the data symbol into multiple portions and distributes these portions across multiple transceivers. Each transceiver processes only a subset of the data portions, dividing the overall processing task into manageable segments that can be handled by simpler, lower-cost hardware components.
Solution Approach 2:
The patent combines the received portions from multiple transceivers at a central processor to reconstruct the complete data symbol. This merging approach allows the system to achieve diversity gain and improved reception quality by utilizing signals from multiple antennas while keeping individual transceiver hardware requirements modest.
2Reliability
If antenna diversity systems process complete data symbols at each transceiver, then reception quality improves, but memory and processing loads increase
Solution Approach 1:
The patent divides the data symbol into multiple portions and assigns different portions to different transceivers for processing. This segmentation reduces the memory and computational burden on each individual transceiver, as they only need to handle a fraction of the total data rather than complete symbols.
Solution Approach 2:
The patent introduces a central processor that acts as an intermediary to collect portions from multiple transceivers, perform the combination operations, and reconstruct the complete data symbol. This mediator approach centralizes the heavy processing and memory requirements, allowing individual transceivers to operate with reduced computational loads.
Data Source
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AI summary
Various exemplary embodiments relate to a wireless communications system, communications device related methods, and automotive and other vehicles including: an antenna group comprising at least one antenna; a receiver circuit configured to receive a first instance of a data symbol via the antenna group; a first swap component configured to: receive a first portion of a second instance of the data symbol from the second communications device, provide a second portion of the first instance of the data symbol to a second communications device; and a buffer configured to store a first portion of the first instance of the data symbol and the first portion of the second instance of the data symbol; and a combining processor configured to create a first portion of a combined symbol by combining the first portion of the first instance and the first portion of the second instance.