Blackberry Corporation

Nokia Corporation

Research in Motion Corporation

Nokia Technologies Oy

Martin Kosakowski

Ernst Zielinski

Edmund Coersmeier

Yuhuan Xu

Erwin Hemming

Joni Jantunen

Jianfeng Weng

Edgar Velez

Jason Robert Duggan

John Puthen Panicker

Marc Hoffmann

Martin Geoffrey Leach

Roland Schink

Stefan Mende

Chandra-Prakash Gupta

Ernst Slawomir Zielinski

Apparatuses and methods for managing route navigation via mobile devices. A route is calculated between a starting point and a destination point. The route is divided into multiple segments based on the complexity of the calculated route, and navigation features are controlled as a function of the segment that corresponds to the user's current location. The user may opt to identify one or more segments, or one or more route portions independent of whether or not segmentation has occurred, in order to specify a portion(s) of the route where navigation support is not needed.

Apparatuses and methods for managing route navigation via mobile devices

A method at user equipment 'UE', the method comprising: determining one or more radio channel estimates from received signals; selecting a precoding index fulfilling an optimization criterion based on the one or more radio channel estimates and a reduced precoding matrix, wherein the reduced precoding matrix comprises properties of a single beam for each of one or more polarization planes, and the reduced precoding matrix corresponds to an expanded precoding matrix comprising properties of a plurality of beams for each of one or more polarization planes; and transmitting a precoding matrix indicator 'PMI' based on the selected precoding index.

Low complexity and accurate cluster of beams selection

A method of symbol detection in an electronic device employing multi-user multiple input multiple output (MU-MIMO) communication over a first transmission layer of first and second transmission layers comprises various steps. A receiver comprises processing circuitry for performing these steps. A transmitted signal is received. The transmitted signal is decoded by detecting data symbols within the transmitted signal for the first transmission layer by performing Maximum Likelihood (ML) detection on the first transmission layer. ML detection comprises performing a search across all possible symbol constellation points in a set of constellation points available for the second transmission layer.

Maximum likelihood detection

The present invention disclosed a method for operating a software radio receiver. Said method comprises receiving a radio signal, determining a signal quality of said radio signal, selecting a suitable algorithm for a function in the receiver in accordance with said determined signal quality and applying said selected algorithm to the radio signal.

Method for operating a software radio receiver and software radio receiver

A method for estimating channel state information (CSI) for a communication channel is disclosed. Theoretical channel capacities are calculated using combinations of rank indicator (RI) and precoding matrix index (PMI) values. A number of these theoretical channel capacities are selected and used for determining an optimum combination of channel quality indicator (CQI) values, RI values and PMI values. This combination of values is subsequently transmitted as CSI.

Method of determining channel state information

In various aspects, the disclosure describes systems and methods for decoding of convolutionally encoded signals representing, for example, telecommunications signals such as command or content signals used in digital telecommunications. In various embodiments such aspects of the disclosure provide systems and methods for improving the efficiency, speed, and power consumption of such processes by providing architectures and methods for processing various parts of the encoded data records in parallel, using multiple and optionally specially-designed, dedicated memory registers and multiplexers.

Low-latency viterbi survivor memory architecture and method using register exchange, trace-back, and trace-forward

The present disclosure describes a method, performed by a data processor comprising a cyclic redundancy check (CRC) module configured for calculating CRC remainders for encoded data and a comparator comprising a shift register, for making a cyclic redundancy check of an encoded data record of bit length L, in which at least A bits of the record represent content data and at least B bits represent check data. A system for performing a cyclic redundancy check is also described.

Method and system for cyclic redundancy check

A method for channel estimation includes receiving data at a number of frequency intervals in a frequency band over a number of first time intervals. A first set of channel estimates is determined for each pilot symbol within the data over a second time interval comprising at least one first time interval, and time-direction interpolation is performed to determine a second set of channel estimates for a number of data portions in a frequency interval using the first set of channel estimates. The frequency interval comprises a data portion comprising a pilot symbol. Frequency-direction interpolation is performed to determine a third set of channel estimates for each first time interval. The time-direction interpolation and the frequency-direction interpolation can be performed in reverse order with the channel estimates generated by the frequency-direction interpolation being used as inputs for time-direction interpolation.

System and method for channel estimation

A lightning detector for lightning detection and a lightning detection method, wherein the lightning detector includes a Digital Radio Mondiale (DRM) digital broadcasting system receiver having an analog front-end and a digital base-band; wherein with the analog front-end DRM receiver the radio signal from lightning can be detected when a DRM receiver application and a lightning detection application operate in the same AM band application engine.

Growing community of inventors

Bochum, Germany

Martin Kosakowski