18494962. SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT simplified abstract (Apple Inc.)

SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT

Organization Name

Apple Inc.

Inventor(s)

Yushu Zhang of Beijing (CN)

Chunxuan Ye of San Diego CA (US)

Dawei Zhang of Saratoga CA (US)

Haitong Sun of Cupertino CA (US)

Hong He of San Jose CA (US)

Huaning Niu of San Jose CA (US)

Seyed Ali Akbar Fakoorian of San Diego CA (US)

Sigen Ye of San Diego CA (US)

Wei Zeng of Saratoga CA (US)

SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT - A simplified explanation of the abstract

This abstract first appeared for US patent application 18494962 titled 'SYSTEMS AND METHODS FOR BEAM FAILURE RECOVERY ENHANCEMENT

Simplified Explanation

- User equipment (UE) receives downlink reference signals on corresponding beams from a base station. - The UE performs beam failure detection (BFD) on beams used for user data to determine if a beam failure has occurred. - Candidate beam detection (CBD) is performed on beams not used for user data to identify candidate beams for recovery. - BFD and CBD are based on both uplink (UL) and downlink (DL) channel performance considerations. - The UE sends a beam failure recovery request (BFRQ) to the base station with this information, and the system changes beams accordingly.

Potential Applications

- 5G and future wireless communication systems - Satellite communication systems - Autonomous vehicles - Industrial IoT networks

Problems Solved

- Beam failures in wireless communication systems - Efficient recovery from beam failures - Improved reliability of communication links

Benefits

- Enhanced user experience with minimal disruptions - Increased network reliability and availability - Efficient use of resources for beam recovery

Original Abstract Submitted

Systems and methods for beam failure recovery (BFR) are disclosed herein. A user equipment (UE) receives downlink (DL) reference signal(s) on corresponding beam(s) from a base station. The UE performs beam failure detection (BFD) on such beams used for user data to determine whether a beam failure has occurred, and candidate beam detection (CBD) on such beams not used for user data to identify candidate beams for recovering from the beam failure. The BFD and the CBD are based on both uplink (UL) channel performance considerations and DL channel performance considerations, as determined using the DL reference signal(s), such that a beam failure may be determined in the UL, the DL, or both, and a candidate beam may be identified for UL, DL, or both. The UE sends a beam failure recovery request BFRQ with this information to the base station, and the system changes beams accordingly.