Beamforming Power Control for Wireless Communication Through Physical Barriers
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Solution Overview
Problem
Wireless communication systems face inefficiencies in overcoming physical barriers due to inadequate transmit power and suboptimal use of beamforming and power control, leading to increased interference when communicating through structures like walls and ceilings.
Innovation Solution
A wireless communication system that employs a serving transceiver and a network transceiver to determine and optimize downlink and uplink beamforming matrices and power levels, enabling efficient communication through physical barriers by beamforming and amplifying signals based on these matrices and power indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmit power is increased to overcome physical barriers, then communication reliability is improved, but interference increases
Solution Approach 1:
The patent applies beamforming to concentrate transmit power in specific spatial directions toward the intended receiver, rather than radiating power uniformly in all directions. This creates local quality enhancement in the desired communication path while minimizing interference in other directions, thus improving communication reliability through barriers without proportionally increasing overall interference
Solution Approach 2:
The system dynamically adjusts beamforming weights and transmit power levels based on real-time channel conditions, receiver location, and interference environment. This dynamic adaptation allows the system to optimize the balance between overcoming physical barriers and minimizing interference, adjusting parameters continuously as conditions change
2Use of energy by moving object
If beamforming is optimized to narrow the main lobe, then transmit power efficiency is improved, but coverage area is reduced
Solution Approach 1:
The beamforming system dynamically adjusts the main lobe width and direction based on the receiver's position and movement. When the receiver is within the narrow high-gain beam, power efficiency is maximized. When the receiver moves or channel conditions change, the system adapts by adjusting beam width and direction, thereby maintaining both power efficiency and coverage area
Solution Approach 2:
The system segments the coverage area into multiple spatial zones with different beamforming configurations. Multiple narrow beams can be formed simultaneously in different directions, each optimized for power efficiency in its specific zone, while collectively providing broad coverage area through spatial division
Data Source
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AI summary
In a wireless communication system (100) that traverses a physical barrier, a serving transceiver (111) determines a downlink beamforming matrix. The serving transceiver (111) determines a downlink power based on the downlink beamforming matrix. A network transceiver (112) beamforms and amplifies a downlink signal based on the downlink beamforming matrix and downlink power. The network transceiver (112) wirelessly transfers the downlink signal through the physical barrier to the serving transceiver (111). Contemporaneously, the network transceiver (112) determines an uplink beamforming matrix. The network transceiver (112) determines an uplink power based on the uplink beamforming matrix. The serving transceiver (111) beamforms and amplifies an uplink signal based on the uplink beamforming matrix and uplink power. The serving transceiver (111) wirelessly transfers the uplink signal through the physical barrier to the network transceiver (112).