Multi-Antenna Transceiver Beamforming Spatial Multiplexing
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Solution Overview
Problem
Modern telecommunication systems face inefficiencies in radio environments with geographical obstacles or buildings, as existing spatial multiplexing and beam forming methods are ideal for extreme environments that rarely occur in practice.
Innovation Solution
Combining beam forming transmission with spatial multiplexing, where beam-specific data streams are allocated to a single transceiver, each carrying different information, to enhance multi-antenna receiver gain while maintaining spatial multiplexing benefits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam forming transmission is used, then Signal-to-Noise Ratio (SNR) is improved, but data rate is limited
Solution Approach 1:
The patent combines beam forming transmission with spatial multiplexing by allocating multiple beam-specific data streams to a single transceiver. Each data stream carries different information and is transmitted through a dedicated beam, thereby merging the SNR improvement of beam forming with the high data rate capability of spatial multiplexing.
2Productivity
If spatial multiplexing is used, then data rate is increased, but performance degrades in practical radio environments with obstacles
Solution Approach 1:
The patent merges spatial multiplexing with beam forming to create a hybrid transmission scheme. Multiple data streams are transmitted through distinct beams that are spatially directed, providing both high data rate and robustness against obstacles by concentrating signal energy in specific directions rather than omnidirectional transmission.
3Reliability
If multiple beam-specific data streams are allocated to a single transceiver, then receiver gain is increased, but system complexity increases
Solution Approach 1:
The patent segments the transmission by creating multiple independent beam-specific data streams, each carrying different information. This segmentation allows the receiver to process each stream separately through dedicated beams, improving gain while maintaining manageable complexity through modular signal processing.
Data Source
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AI summary
An apparatus of a multi-antenna telecommunication system comprises: a beam forming unit (204) configured to form at least two antenna beams; and a signal feeding unit (202) connected to the beam forming unit (204) and configured to feed beam-specific data streams to the beam forming unit (204), wherein the beam-specific data streams are allocated to one and the same transceiver of the wireless telecommunication system and wherein each data stream comprises independently and separately encoded data signals.