Communication device and method for echo signals management

US11171691B2 · kind B2 · utility

Assignee

• SILICON VALLEY BANK · US

Inventors

• Ahmadreza Rofougaran · Newport Beach, US
• Maryam Rofougaran · Rancho Palos Verdes, US
• Sam Gharavi · Irvine, US
• Qiyue Zou · San Jose, US
• Alan Wang · Dublin, US
• Farid Shirinfar · San Fernando, US
• Mike Boers · Hornsby, AU

Key dates

• Filing date: Apr 29, 2019
• Grant date: Nov 9, 2021
• Expiry date: Sep 3, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B17/103
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A communication device includes a donor receiver that receives a first beam of input radio frequency (RF) signals from a base station or a network node. The communication device further includes a service transmitter that transmits a second beam of RF signals in a first radiation pattern to a user equipment (UE). The communication device further includes control circuitry that detects an amount and a direction of echo signals at the donor receiver. The control circuitry applies polarization to the second beam of RF signals transmitted to the UE and calibrates the polarization to minimize the echo signals at the donor receiver. A second radiation pattern is generated for the second beam of RF signals and communicated to the UE based on the calibrated polarization. The communication of the second beam of RF signals in the generated second radiation pattern further reduces the echo signals at the donor receiver.