Infineon Technologies Ag

Intel Deutschland Gmbh

Intel Corporation

Intel Mobile Communications Gmbh

Apple Inc.

Intel IP Corporation

Roland Hellfajer

Markus Hammes

Britta Felbecker

Alexander Uwah

Tobias Scholand

Thorsten Clevorn

Michael Speth

Thomas Convent

Christian Duerdodt

Michael Warmers

Frank Huertgen

Peter Ascheuer

Britta Olschner

Herbert R Dawid

Jan K Ellenbeck

Edgar Bolinth

Markus Jordan

Sven Dortmund

Ulrich Boetzel

Thomas Esch

Dieter Brückmann

Admir Burnic

Chandra Gupta

Romeo Lopez Soto

Michael Jung

Markus Schlamann

Giuseppe Lipuma

A wireless device includes a radio transceiver, and a digital transmitter configured to transmit, via the radio transceiver, a first data symbol, and to transmit, via the radio transceiver, a repetition of the first data symbol immediately after the first data symbol, where the first data symbol forms a cyclic prefix for the repetition of the first data symbol.

Methods and devices for communications in device-to-device networks

A communication terminal is described with a controller configured to receive, from applications, respective requests for an exchange of application layer data over a communication network associated with the respective application, to select a first application, to control a communication circuit to perform an exchange according to the request received from the first application, to initiate, for a second application, a buffering of application layer data requested to be exchanged according to the request received from the second application, to control the communication circuit to release the first network layer communication connection based on a duration of the buffering and to establish a second network layer communication connection to a communication network associated with the second application and perform an exchange according to the request received from the second application over the second network layer communication connection after release of the first network layer communication connection.

Communication terminal and method for communicating data

A communication device is described comprising a transmitter configured to transmit data according to a retransmission protocol, a determiner configured to determine whether, for a transmission time scheduled according to the retransmission protocol, there was a transmission gap within a predetermined time interval before the transmission time or to determine whether there will be a transmission gap within a predetermined time interval after the transmission time and a controller configured to control the transmitter to perform an initial transmission of data or a retransmission of data according to the retransmission protocol at the transmission time based on the result of the determination.

Communication device and method for transmitting data in accordance with a retransmission protocol

A method of evaluating a reception quality of a receiver includes determining a reception quality of the receiver using a measurement from a single active antenna of the receiver if the receiver is in the idle mode. The method further includes activating receiver diversity by activating at least a second antenna of the receiver in the idle mode if the measurement from the single active antenna of the receiver is below a first predetermined reception quality threshold. A receiver includes receiver chains configured to interface with respective antennas, and a reception quality estimation unit configured to determine a reception quality of a single active receive chain when the receive is in an idle mode. The receiver further includes a diversity controller configured to selectively activate at least a second receive chain in the idle mode based on the determined reception quality from the reception quality estimation unit.

Dynamic RxDiv for idle mode in a user equipment

A mobile communication apparatus is provided, which may have a receiver, and may ascertain whether a movement of the apparatus is below a prescribed limit and on that basis may prompt the receiver of the mobile communication apparatus to perform a signal reception quality measurement. A mobile communication apparatus is also provided, which may have a transmission/reception device, and may ascertain whether a movement of the apparatus is below a prescribed limit based on a set of radio cells in a mobile radio communication that is active, a radio cell that serves the mobile communication apparatus, or a set of adjacent radio cells that is configured for the mobile communication apparatus.

Mobile communication apparatuses, method for performing signal reception quality measurements and method for ascertaining a movement by a mobile communication apparatus

A radio communication device may be provided. The radio communication device may include: a measurement circuit configured to measure a reception quality of a signal from another radio communication device; a retention time determiner configured to determine a retention time based on the measured reception quality; and a memory configured to store information related to the other radio communication device for a period of time, the period of time based on the determined retention time.

Radio communication devices and methods for controlling a radio communication device

This disclosure relates frequency channel qualification in wire-free communications system.

Channel qualification for an adaptive frequency hopping method by means of bit or packet error rate measurement and simultaneous field strength measurement

A packet-oriented mobile radio transmission system takes account of a packet utilization level that indicates how much of the maximum amount of payload information that can be transmitted is used for transmission. Such packet utilization level is a function of the packet type. A packet type that is suitable in the respective reception conditions is selected at the receiving end as a function of a variable that is characteristic of the integrity of the received data, and of the packet utilization level. At the transmission end, the packet type is switched as a function of the selection result.

Optimization of the data throughput of a mobile radio connection by efficient packet type changing

A method for calculating the power consumption of a mobile device, particularly of a mobile station of a mobile radio system, in an observation period &#x394;t based on various possible system states sin which the device can be in the period &#x394;t. A value of a quantity &#x394;is determined system-state-dependently for the system states soccurring in the period &#x394;t. The power consumption in the period &#x394;t is calculated in such a manner that the quantities &#x394;and state-dependent typical currents iare taken into consideration.

Method and circuit arrangement for determining a charge consumed within a period in mobile devices

The method is based on the capability for coordination of the radio activities of two mobile radio transmitting and/or receiving devices. In the case of the method, a value of at least one characteristic variable is first of all determined, which is characteristic of the requirement for coordination of the radio activity of one or both transmitting and/or receiving devices. The coordination of the radio activity of one or both transmitting and/or receiving devices is then activated or deactivated as a function of the value.

Method and apparatus for adaptive activation or deactivation of the coordination of the radio activities of two mobile-radio transmitting and/or receiving devices

In a method for channel qualification and selection, an actual data packet length and a data packet error rate in a received data packet are determined, and are used for a qualification decision. The measured data packet error rate is compared with a previously calculated data packet error threshold value, which depends on an assumed bit error rate and the ratio of a possible actual to a maximum data packet length.

Channel qualification and selection in a multichannel radio system by packet error rate measurement

The method is based on the capability for coordination of the radio activities of two mobile radio transmitting and/or receiving devices (). In the case of the method, a value of at least one characteristic variable (P, N;) is first of all determined, which is characteristic of the requirement for coordination of the radio activity of one or both transmitting and/or receiving devices. The coordination of the radio activity of one or both transmitting and/or receiving devices is then activated or deactivated as a function of the value.

In a method for qualification of a frequency channel in a wire-free communication system, data is transmitted on different frequency channels by means of an adaptive frequency hopping method. The transmission and reception are carried out in time slots using a time slot method which is based on the radio standard. In order to qualify the transmission quality of the frequency channels, data packet error rates and/or bit error rates and the field strength of the received data signal are measured, and the measured field strength is compared with a threshold value field strength in order to make a selection decision.

Apparatus () having two devices () which can be connected to one another via an interface (), where the devices () each have an activation unit which, upon receipt of a control signal at a control input, prompts the respective device () to change over from a standby mode to an active mode, and where the control signal is transmitted by the respective other device (), and the control input in one device () is an interface connection and, in the other device (), is located outside the interface ().

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Bochum, Germany

Roland Hellfajer