Beamformed Signal Transmission for Proximate Wireless Device Interference
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Solution Overview
Problem
Wireless devices proximate to antenna systems in telecommunication networks can interfere with communications, causing overload and service degradation due to uncontrolled uplink transmit power, which existing systems fail to mitigate effectively.
Innovation Solution
Transmitting a beamformed signal to wireless devices detected as proximate to an antenna system, using an access node to adjust the signal level and reduce interference by controlling the uplink transmit power, thereby mitigating interference and maintaining service quality for participating devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices transmit with high uplink power to maintain communication quality, then signal coverage is improved, but interference at the antenna system increases
Solution Approach 1:
The patent applies local quality by implementing different transmit power control strategies for different wireless devices based on their location. Wireless devices proximate to the antenna system are identified and instructed to use reduced uplink transmit power, while other devices maintain normal power levels. This localized differentiation resolves the contradiction by allowing high power transmission for most devices (maintaining reliability) while specifically reducing power for proximate devices (reducing interference).
Solution Approach 2:
The patent implements feedback by having the antenna system monitor uplink signals from wireless devices, identify those proximate to the antenna system, and provide feedback instructions to these devices to reduce their uplink transmit power. This closed-loop feedback mechanism enables dynamic adjustment of transmit power based on actual interference conditions, resolving the contradiction between maintaining communication quality and reducing interference.
2Object-generated harmful factors
If beamformed signal is transmitted to proximate wireless devices, then interference is reduced, but system complexity increases
Solution Approach 1:
The patent uses the access node as an intermediary between the antenna system and proximate wireless devices. The access node receives information about proximate devices from the antenna system, processes this information to determine appropriate beamforming parameters, and transmits beamformed signals to the devices. This intermediary approach reduces interference effectively while distributing the processing complexity to the access node rather than concentrating it at the antenna system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces interference at the antenna system by increasing the signal level metric for non-participating wireless devices, allowing them to decrease their uplink transmit power, thus minimizing service degradation and maintaining reliable communication for participating devices within the geographic area.
Implementation Method 1
transmitting a beamformed signal to a wireless device proximate to an antenna system
Data Source
AI summary
Systems and methods are described for transmitting a beamformed signal to a wireless device proximate to an antenna system. An uplink signal may be received at an access node from a wireless device in communication with the access node. It may be detected that the wireless device is proximate to an antenna system, wherein the antenna system does not comprise the access node. The detection may be based on a determined location for the wireless device, an indication from the antenna system, a retrieved signal level metric for the wireless device, and the like. It may be then determined that a beamformed signal is to be transmitted to the wireless device based on the detecting. And the beamformed signal may be transmitted from the access node to the wireless device.