5G wireless systems are designed to meet the increasing demand for high data rates but face challenges like signal obstruction, poor penetration, high propagation loss, and inadequate scattering. Active relays have emerged as a solution to these issues by re-routing signals to avoid obstructions, ensuring uninterrupted 5G service. However, in dense environments, even signals from relays can be obstructed, especially with moving users. To maintain connectivity, it is crucial to identify which relays can effectively route signals without blockage and to determine the user’s position. Existing relay architectures lack the capability to inform the base station of signal path obstructions and user location. There is a need for a relay architecture that addresses these gaps by adding unique codes to transmitted signals, enabling base stations or users to identify transmitting relays and determine user location.
Researchers at Arizona State University have developed a self-identifying relay system that enhances the capabilities of 5G wireless communication. Each relay in the system adds a unique code to the received signal before re-transmitting it. This code allows the base station and the user to identify the relay that transmitted the signal. By measuring the delay in signals received from different relays, the base station can localize and track the user's position. This capability is crucial for maintaining connectivity in dense environments where signals are often obstructed. Additionally, the system allows the base station and user to identify which relays can transmit the signal without obstruction or blockage based on the received codes. The unique coding also adds an additional physical layer of security to the data, enhancing the overall security of the communication.
Unlike existing technologies, where relays do not have the capability to differentiate between each other, this invention's unique code enables effective localization, signal blockage identification, and enhanced security, all within the front end. This ensures no processing delays and minimal power consumption, making it a valuable advancement in 5G communication technology.
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