Search International and National Patent Collections

1. (WO2018203785) USER EQUIPMENT, BASE STATION AND METHODS IN A RADIO COMMUNICATIONS NETWORK

Pub. No.:    WO/2018/203785    International Application No.:    PCT/SE2018/050186
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Wed Feb 28 00:59:59 CET 2018
IPC: H04B 7/06
H04B 7/08
Applicants: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors: DA SILVA, Icaro L. J.
TIDESTAV, Claes
Title: USER EQUIPMENT, BASE STATION AND METHODS IN A RADIO COMMUNICATIONS NETWORK
Abstract:
According to a first aspect of embodiments herein, the object is achieved by a method performed by a User Equipment (UE) for monitoring a beam transmitted by a base station in a radio communications network. The base station is serving the UE. The UE monitors (1202) a reference signal related to the beam, from the base station. Each time a quality of the reference signal is below a first threshold, the UE generates (1203) an Out-Of-Synchronization (OOS) event When the number of OOS events reaches an OOS Beam Failure Detection (BFD) threshold, the UE triggers (1205) a beam recovery preparation procedure, and when the number of OOS events reaches an OOS Radio Link Monitoring (RLM), threshold, the UE starts (1206a) an RLF timer.