US 2019/0173740 A1 · CONTROL SIGNALING OF BEAM FAILURE DETECTION

Abstract

Systems, apparatuses, and methods for control signaling of beam failure detection are disclosed. A beam pair link may be comprised of multiple bandwidth parts (BWPs) or component carriers (CCs). In one embodiment, a beam failure detection reference signal (BFD RS) may be configured, with subsequent BFD RS instances defining a BFD RS periodicity. A BFD periodicity for monitoring the BFD RS may be configured to be less than, or equal or greater than the BFD RS periodicity. A beam failure may be declared if a minimum number of BFD RS instances, either within the BFD periodicity, or nearest the BFD periodicity if no instances fall within the BFD periodicity, fall below a predetermined threshold. The BFD periodicity and BFD RS may be configured for all BWPs/CCs, a subset of BWPs/CCs, or each individual BWP/CC.

Claims25

Dependent claims

An apparatus, comprising:

processing circuitry;
and
control circuitry coupled to the processing circuitry,
wherein the control circuitry is to detect, with at least one downlink reference signal (RS), a beam failure instance of a beam in at least one of a plurality of active bandwidth parts (BWPs) or component carriers (CCs) comprising the beam, each of the plurality of active BWPs or CCs associated with at least one downlink RS and an independent beam failure detection (BFD) counter, and the processing circuitry is to cause the beam failure instance to be declared.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

16/267,721Filed 5 Feb 2019

Priority

6 Feb 2018

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

H04L 41/0668
Using network fault recovery: by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
H04B 7/06964
Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping: re-selection of one or more beams after beam…
H04L 41/0677
Management of faults, events, alarms or notifications: localisation of faults
H04L 41/0894
Configuration management of networks or network elements: policy-based network configuration management

Control signaling of beam failure detection

Life of this patent

Control signaling of beam failure detection

Life of this patent

Abstract

Claims25