Invention Grant
- Patent Title: System and method for beam failure recovery
-
Application No.: US15836444Application Date: 2017-12-08
-
Publication No.: US10555359B2Publication Date: 2020-02-04
- Inventor: Pengfei Xia , Young Hoon Kwon , Bin Liu
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: FUTUREWEI TECHNOLOGIES, INC.
- Current Assignee: FUTUREWEI TECHNOLOGIES, INC.
- Current Assignee Address: US TX Plano
- Agency: Slater Matsil, LLP
- Main IPC: H04W72/04
- IPC: H04W72/04 ; H04W76/18 ; H04B7/08 ; H04B7/06 ; H04L5/00 ; H04W74/08 ; H04W4/08

Abstract:
A method for operating a user equipment (UE) includes detecting a failure of a first link between the UE and an access node, and based thereon, detecting a second link between the UE and the access node, sending, to the access node, a beam failure recovery request (BFRQ) on one or more physical random access channel (PRACH) resources associated a third link conveying a reference signal, wherein the third link and the second link are quasi co-located (QCLed), wherein the BFRQ includes a group identifier associated with a UE group including the UE, and monitoring one or more PRACH response opportunities associated with the one or more PRACH resources for a beam failure recovery response (BFRP).
Public/Granted literature
- US20190053312A1 System and Method for Beam Failure Recovery Public/Granted day:2019-02-14
Information query