Key challenges, drivers and solutions for mobility management in 5G networks: A survey

I Shayea, M Ergen, MH Azmi, SA Çolak, R Nordin… - IEEE …, 2020 - ieeexplore.ieee.org
Ensuring a seamless connection during the mobility of various User Equipments (UEs) will
be one of the major challenges facing the practical implementation of the Fifth Generation …

Handover robustness in cellular radio communications

O Teyeb, A Centonza, K Dimou, W Muller - US Patent 9,031,564, 2015 - Google Patents
An indication of the speed of movement of a UE in a radio communications system is
received (801) at a network node of the radio communications system. The parameters of …

Apparatus and method for detecting cause of radio link failure or handover failure in mobile communication system

L Xu, GJ Van Lieshout, H Van Der Velde - US Patent 9,001,716, 2015 - Google Patents
(57) ABSTRACT A terminal, a Base Station (BS) and a method for detecting a cause of a
Radio Link Failure (RLF) or handover failure are provided. The method includes determining …

Systems and methods for deployment operations for small cells in self-organizing networks

N Bajj, B Moser, Z Shi - US Patent 9,084,165, 2015 - Google Patents
A multi-modal multi-modulation base station Such as a small cell eNB is disclosed. The
small cell eNB includes multiple radio devices that can be configured to communicate with …

Method for providing information in a cellular wireless communication system

H Olofsson, P Legg, J Johansson… - US Patent 8,417,246, 2013 - Google Patents
The present disclosure relates to a method for providing infor mation in a cellular wireless
communication system includ ing: detecting a radio link failure (RLF) for a mobile station …

Handover failure messaging schemes

A Catovic, PA Agashe, R Gupta, GB Horn… - US Patent …, 2015 - Google Patents
Handover parameter settings are automatically adapted in access points in a system to
improve handover performance. Reactive detection techniques are employed for identifying …

Mobility load balancing and resource status report for scenarios with relay nodes

A Garavaglia, R Prakash, A Catovic - US Patent 8,743,772, 2014 - Google Patents
Certain aspects of the present disclosure provide techniques and apparatuses for wireless
communications. The tech niques generally include intercepting a report message from a …

Failure event report extension for inter-RAT radio link failure

PJM Johansson, SJ Lin, YS Chen, W Plumb - US Patent 9,661,510, 2017 - Google Patents
A method of inter-RAT failure event report is proposed. A UE detects a failure event in a first
cell served by a first base station, and the first cell belongs to a first RAT. The failure event …

Method and apparatus for controlling waiting time for determination of radio link failure in wireless communication system

JM Moon, A Nigam, JS Jung, SH Ryoo… - US Patent 9,924,419, 2018 - Google Patents
A method and an apparatus for controlling a waiting time related to determination of a radio
link failure in a wireless communication system are provided. The method includes receiving …

Handover-related radio link failure detection

J Huang, Y Kim, C Lee - US Patent 8,559,397, 2013 - Google Patents
(4G) communication system or an International Mobile Tele communications-Advanced (IMT-
Advanced) communica tion system. Representative examples of Such a next genera tion …