Invention Grant
- Patent Title: Beam recovery for partial control channel failure
-
Application No.: US15699662Application Date: 2017-09-08
-
Publication No.: US10567064B2Publication Date: 2020-02-18
- Inventor: Xiaoyi Wang , Arunabha Ghosh , Salam Akoum
- Applicant: AT&T Intellectual Property I, L.P.
- Applicant Address: US GA Atlanta
- Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
- Current Assignee: AT&T INTELLECTUAL PROPERTY I, L.P.
- Current Assignee Address: US GA Atlanta
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H04B7/06
- IPC: H04B7/06 ; H04B7/0408 ; H04W72/04 ; H04L5/00

Abstract:
Various embodiments disclosed herein provide for a beam recovery when there has been a partial control channel failure. Transient obstructions, and other interference effects can cause the failure of a beam pair link which can comprise a transmit beam and a receive beam associated with respective antennas on a transmitter and receiver. A group of control channels (downlink control channels) (configured as a control resource set “CORESET”) on a group of beam pair links can be associated with a group of uplink control resources (Physical Uplink Control Channel resources). When a subset of the CORESET group fails, the user equipment (UE) device can find another PUCCH that is associated with a working CORESET to send an indication to the network about the failure. When the network receives the indication, the network can switch the failed CORESET to a new beam pair link.
Public/Granted literature
- US20190081686A1 BEAM RECOVERY FOR PARTIAL CONTROL CHANNEL FAILURE Public/Granted day:2019-03-14
Information query