Berlin, Germany

Deutsche Telekom AG

www.telekom.com
Berlin, Germany

Deutsche Telekom AG is a German telecommunications company headquartered in Bonn. Deutsche Telekom was formed in 1996 as the former state-owned monopoly Deutsche Bundespost was privatized. As of June 2008, the German government still holds a 15% stake in company stock directly, and another 17% through the government bank KfW. Wikipedia.


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The invention relates to a method for improving device to device proximity detection and/or device to device communication between a first user equipment and a second user equipment, the first user equipment and the second user equipment being enabled to use a device to device mode (D2D mode), wherein using the device to device mode for device to device proximity detection and/or device to device communication purposes between the first and second user equipments requires performing a discovery procedure between the first and second user equipments, at least the first user equipment being related to a mobile communication network comprising a core network and an access network, the access network of the mobile communication network comprising a base station entity, wherein a first frequency or frequency band is used for the reception of first control data by the first user equipment, the first control data being sent by the base station entity, and wherein a second frequency or frequency band is used for the reception of second control data by the second user equipment, wherein the method comprises the following steps: -- in a first step, the base station entity transmits, as part of the first control data, a first discovery resource configuration information and a second discovery resource configuration information, the first discovery resource configuration information indicating first air interface resources being possibly used for discovery purposes involving the first user equipment, the second discovery resource configuration information indicating second air interface resources being possibly used for discovery purposes involving the second user equipment, -- in a second step, subsequent to the first step, the first user equipment uses the second discovery resource configuration information for performing a discovery procedure towards the second user equipments by using the second air interface resources.


The invention relates to a method for enhanced management of a public utility system, the public utility system comprising a plurality of operating communication-enabled public utility devices, wherein the public utility system further comprises a communication means for communicating between the operating communication-enabled public utility devices as well as between at least one of the operating communication-enabled public utility devices and the communication means, wherein the public utility system comprises a system management layer that interfaces with a database entity, the database entity having a device-related record regarding each operating communication-enabled public utility device, wherein - regarding a new communication-enabled public utility device that is not yet operating as part of the public utility system - the method comprises the steps of:-- in a first step, a communication involving the public utility system occurs regarding the new communication-enabled public utility device such that - regarding the new communication-enabled public utility device - the system management layer is contacted,-- in a second step, subsequent to the first step, a device-related record regarding the new communication-enabled public utility device is generated or validated.


The invention relates to a method for transmitting machine type communication data between, on the one hand, a plurality of machine type communication devices, and, on the other hand, a mobile communication network, the mobile communication network comprising an access network having at least a radio cell and a base station entity associated with the radio cell, the base station entity comprising an antenna equipment, wherein the antenna equipment is used for transmitting the machine type communication data, wherein the machine type communication devices transmit radiofrequency electromagnetic signals that are received by the antenna equipment of the base station entity, wherein by means of the radiofrequency signals the machine type communication data are transmitted at least towards the base station entity, wherein the machine type communication data have a comparably low bitrate, in average per a time interval of at least 60 minutes, of at most 1 Bd (1 bit per second), wherein the radiofrequency electromagnetic signals are modulated signals that are overlapping at least partially and in the frequency domain with the at least one frequency band to provide the mobile communication services of the mobile communication network, wherein, after reception using the antenna equipment of the radiofrequency electromagnetic signals by the base station entity, the machine type communication data are separated from the mobile communication data and/or decoded separately from the mobile communication data.


The invention relates to a method for protecting a mobile communication network from performance impacts, wherein the mobile communication network comprises an access network and a core network, the access network comprising a plurality of radio cells and a plurality of base station entities, and the core network comprising a plurality of network nodes of the mobile communication network, wherein a user equipment is located in a radio cell of the plurality of radio cells, the radio cell being served by a base station entity of the plurality of base station entities, wherein the core network comprises a filter element, the filter element -- either providing a forwarding functionality, to the user equipment, of downlink data packets directed to the specific IP-address or to the specific range of IP-addresses of the user equipment, -- or providing an alternative treatment functionality of downlink data packets directed to the specific IP-address or to the specific range of IP-addresses of the user equipment, the application of the forwarding versus the alternative treatment functionality of the filter element being dependent on load conditions of the mobile communication network at a reception time of the downlink data packets at the core network, wherein at a given load condition of the mobile communication network in case of a particular downlink data packet directed to the user equipment, incoming to the core network, the particular downlink data packet is forwarded to the user equipment if at least one of the following conditions are met: -- the filter element comprises an information that the user equipment is in the activated state, -- a preceding downlink data packet, preceding the particular downlink data packet in time and being directed to the specific IP-address or to the specific range of IP- addresses of the user equipment, has been forwarded to the user equipment, wherein the preceding downlink data packet precedes the particular downlink data packet by less than a predetermined first time interval, -- a preceding uplink data packet, preceding the particular downlink data packet in time and being originating from the specific IP-address or from the specific range of IP- addresses of the user equipment, has been received, by the filter element, from the user equipment, wherein the preceding uplink data packet precedes the particular downlink data packet by less than a predetermined second time interval.


A method (500) for locating a mobile station within a mobile cellular network comprises: transmitting (501) at least three radio signals between the mobile station and a corresponding number of at least three base stations, wherein each of the at least three radio signals comprises a time information indicating a transmittal time of the respective radio signal; computing (502) for each of the at least three radio signals a time delay based on a difference between an arrival time and the transmittal time of the respective radio signal; retrieving (503) for each of the at least three radio signals information about transmission path losses of the respective radio signal from a data storage; computing (504) for each of the at least three radio signals a distance of the mobile station to the respective base station based on the time delay and the information about transmission path losses; and determining (505) a location of the mobile station based on trilateration of the at least three distances.


Disclosed herein are embodiments of systems and methods of detecting whether an attacker has re-programmed a Programmable Logic Controller (PLC) in a Supervisory Control And Data Acquisition (SCADA) system in order to send false information back to the Human Machine Interface (HMI).


Patent
Deutsche Telekom AG | Date: 2017-02-27

An alarm device includes a portable alarm emitter, the portable alarm emitter being configured to detect a change in an electrical property of a sensor element which is connected to the portable alarm emitter and to signal an alarm if a change is established. The portable alarm emitter and the sensor element are separate units configured to be interconnected with electrical contact. The portable alarm emitter is a reusable unit. The sensor element has an end which is formed as an eye through which an other end of the sensor element can be passed in order to form a closed loop which can only be made smaller because of a one-way locking function of the eye, the sensor element having at least one line element which can be contacted after the other end is introduced into the alarm emitter.


Presented herein are a system and method of identifying when an Engineering Workstation (EWS) in a Supervisory Control and Data Acquisition (SCADA) system is attempting to maliciously reprogram a Programmable Logic Controller (PLC) without the operators knowledge.


Patent
Deutsche Telekom AG | Date: 2017-06-21

Disclosed herein is a system and method for allocating communication resources for communication between a transmitter and a receiver in a multi-user cellular communication system, wherein communication resources are divided in frequency sub-bands. The system characterized in that it comprises a device configured to classify, based on a configuration parameter, part of the frequency sub-bands as frequency-sub-bands carrying bursty traffic; and classify the remaining part of the frequency sub-bands as frequency-sub-bands carrying long-term transmission traffic. The method characterized by classifying, based on a configuration parameter, part of the frequency sub-bands as frequency-sub-bands carrying bursty traffic; and using the remaining part of the frequency sub-bands as frequency-sub-bands carrying long-term transmission traffic.


Patent
Deutsche Telekom AG | Date: 2017-06-21

The present invention relates to a system to enhance industrial robots to electronically communicate with remote peers in a secure way. The system is based on security features provided by an ARM platform enhanced by security functionality that address every relevant interface of the system. Key building blocks of the system are a robot, a communication module, and a remote input device that are connected using security functions. Particularly, disclosed herein is a system of retrofitting an industrial robot for secure communication, the system comprising an industrial robot; a communication module configured to provide security mechanisms supporting secure communication; a security smartcard configured to be integrated into the communication module; and a robot input device configured to allow user to input commands to the robot.

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