Method and system for managing interference in multi TRP systems

US11405089B2 · kind B2 · utility

Assignee

• SONY GROUP CORPORATION · JP

Inventors

• Fredrik RUSEK · Eslöv, SE
• Olof ZANDER · Södra Sandby, SE
• Zuleita HO · Lund, SE
• Erik Bengtsson · Eslöv, SE
• Kun Zhao · Sichuan, CN
• Torgny Palenius · Barsebäck, SE

Key dates

• Filing date: Sep 27, 2019
• Grant date: Aug 2, 2022
• Expiry date: Sep 27, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04W72/046
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Systems and methods for managing interference in a communication network include transmitting a first downlink signal from a first transmit/receive point (TRP) to an electronic device using a beam. The electronic device can also receive a second downlink signal from a second TRP, where a portion of the first downlink signal from the first TRP interferes with the second downlink signal. The first TRP then receives a series of uplink pilot signals from the electronic device. Using the received uplink pilot signals, the first TRP can then estimate the angle of departure (AoD) for the intended signal (first downlink signal), and the AoD for the interference signal. The first TRP can then reconfigure the beam used to transmit the first downlink signal based on the estimated AoDs for the intended signal and interference signal to manage the interference effect that the first leakage signal has on the second downlink signal.