Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Benjamin Sackenreuter

Thomas Fehrenbach

Josef Bernhard

Gerd Kilian

Niels Hadaschik

Dennis Wieruch

Bernd Holfeld

Martin Kasparick

Renato Luis Garrido Cavalcante

Martin Kurras

Norbert Franke

Mohammad Alawieh

Joern Thielecke

The present invention concerns a cellular communication network having a base station serving a radio cell and at least one user equipment located within the radio cell, wherein the base station is configured to receive a radio signal from the user equipment and to determine at least one signal property of the received radio signal, wherein the base station is further configured to assign a user equipment identifier to the user equipment based on the a least one determined signal property. The present invention further concerns a base station to be used in the above mentioned cellular network as well as corresponding methods.

Cellular communication network using a user equipment identifier

Communication apparatus of a cellular communication network, wherein the apparatus is configured to receive a reference signal; and to estimate a phase estimate based on the received reference signal; and to provide a localization module with the phase estimate.

Communication apparatus, method and cellular network usable in a localization of a user equipment using a phase estimate

The invention concerns a method for receiving and a receiver configured to receive a radio signal carrying information, the radio signal including an overall frequency band having a first frequency sub band and a second frequency sub band. The receiver is further configured to receive during a first time period a first portion of the information carried by the radio signal in the first frequency sub band, and to receive during a second time period a second portion of the information carried by the radio signal in the second frequency sub band. The receiver is further configured to perform channel estimation of the first frequency sub band in order to determine a first phase and to perform channel estimation of the second frequency sub band in order to determine a second phase. The receiver is further configured to determine an overall phase basis of the radio signal using the first and second phases.

Channel estimation of frequency sub bands

A base station is configured to control a wireless communications network cell of a wireless communications network. The base station is configured to establish a connection to a first user equipment and to a second user equipment using a random access process. For establishing the connection to the first user equipment, the base station is configured to use a sequence of a first random access preamble, the sequence having a first length. For establishing the connection of the second user equipment, the base station is configured to use a sequence of a second random access preamble, the sequence having a second length.

Method for a contention-based random access procedure in a wireless communication network

The invention relates to systems and methods for obtaining phase information and/or localization of tag devices. In particular, the invention relates to a system for the localization of at least one tag device, the system including: the at least one tag device configured to transmit a tag signal which is a frequency-hopping signal; at least one known position device configured to transmit a reference signal; and a localization device configured to localize the at least one tag device based on the phase difference of arrival, PDoA, of the tag signal and the reference signal.

Growing community of inventors

Buckenhof, Germany

Benjamin Sackenreuter