Stmicroelectronics N.v.

Siemens Aktiengesellschaft

Stmicroelectronics S.a.

Stmicroelectronics S.r.l.

Friedbert Berens

Peter Jung

Markus Doetsch

J&ouml;rg Plechinger

Norbert Wehn

Ettore Messina

Eric Achkar

Joerg Plechinger

Miguel Kirsch

Thierry Arnaud

Laurent Chalard

Michael J Thul

Franck Gilbert

Paul Walter Baier

Karl Kammerlander

Paul-Walter Baier

Frank Kienle

Patrick Conti

Stéphane Tanrikulu

Timo Lehnigk-Emden

Cem Derdiyok

Stèphane Erkan Tanrikulu

Franck Kienle

Gerd Kreiselmaier

Timo Roman

Andreas Rüegg

A wireless device belongs to a wireless communication system and exchanges information within at least one band of frequencies. A method includes detecting a presence of at least one victim device operating within the at least one band of frequencies. The first wireless device is provided with an antenna array, and the detecting step includes analyzing an environment of the wireless device through the antenna array, and if the at least one victim device is detected, reducing interference by controlling the antenna array to steer the antenna beam toward an area located outside a vicinity of the potential victim device to exchanging information within the at least one band of frequencies with at least a second wireless device located in the area.

Method for managing the operation of a wireless device, in particular for reducing interferences with a potential victim device

A wireless apparatus includes a millimeter-wave communication interface configured to exchange information within a millimeter-wave communication network, an UWB communication interface and circuitry configured to activate the UWB interface for communicating location indication to the communication network according to an UWB communication standard. The location indication is intended for locating the wireless apparatus within the network.

Method for managing the operation of a wireless apparatus configured to exchange information with a millimeter-wave communication device, and corresponding apparatus

A device belonging to a wireless communication system and adapted to exchange information with another device of the system within a main band of frequencies includes N different antennas having respectively different antenna characteristics, with N being greater than one. A controllable selector selects one of the antennas. A detector detects through the selected antenna the eventual presence of at least one interferer operating within the main band of frequencies. A controller, upon presence of a detected interferer, controls the selector for selecting another antenna.

Method for managing eventual interferences during an information exchange between two wireless devices belonging for example to a multi-carriers based UWB communication system, and corresponding device

The method is for managing operation of a first apparatus belonging to a first communication system and exchanging within the first communication system a multi-carrier modulated signal on several sub-carriers. The method includes detecting at the first apparatus the presence of an interfering signal emitted from a victim apparatus on a sub-carrier. The method may also include determining at the first apparatus the path loss between both apparatuses, determining from the path loss and from an allowed interference level at the victim apparatus a maximum allowed transmit power on the sub-carrier of a multi-carrier modulated signal to be transmitted from the first apparatus, and adjusting within the first apparatus the processing of the multi-carrier modulated signal to be transmitted in accordance with the maximum allowed transmit power.

Method and device for managing the operation of an apparatus, for example an MB-OFDM apparatus, in presence of an eventual interfering signal

The method includes an interference deduction mode for reducing interferences between a wideband device and a narrowband device. The method is performed within the wideband device and includes detecting an emission from and/or a reception performed by the narrowband device; determining from the detection step a group of at least one sub-carrier having frequencies interfering with the narrowband devices; and frequency shifting at least a part of frequency band of the wideband device including the group of at least one interfering sub-carriers with a chosen frequency shift such that at least a part of frequency band of the narrowband device is excluded from the frequency band of the wideband device.

Method and apparatus for reducing the interferences between a wideband device and a narrowband device interfering with the wideband device

A method of decoding a received systematic code encoded block corresponding to an original block of information, wherein the received systematic code encoded block may include soft systematic values, may include detecting an error condition in the received systematic code encoded block. The method may also include decoding the received systematic code encoded block for retrieving the original block of information if the error condition in the received systematic code encoded block is detected and processing the soft systematic values to retrieve the original block of information instead of the decoding if the error condition in the received systematic code encoded block is not detected.

Method and device for decoding a received systematic code encoded block

Method for transmitting information in a multi-band OFDM system, comprising delivering according to a given communication standard an initial data stream (IDS), splitting () said initial data stream into a chosen number of elementary data streams and simultaneously transmitting () said elementary data streams according to said communication standard on said communication medium (MD) within different respective sub-bands (SBi). These sub-bands all blong to the same band group. Proposal based on the MBOA standard.

High data rate transmission in a multi band OFDM system

The method is for detecting the eventual presence of an interferer that is adapted to interfere with a wireless device. The wireless device is provided with at least one receiving chain including an analog to digital conversion stage. The method includes receiving on the receiving chain an incident signal, and delivering to the ADC stage an analog signal from the incident signal. The method further includes elaborating or determining a binary information from a binary signal delivered by the ADC stage and representative of the level of the analog signal, analyzing a temporal evolution of the binary information and detecting the presence of the interferer from the analysis.

Method for detecting the eventual presence of an interferer, for example a radar signal, adapted to interfere with a wireless device, for example an UWB device, and corresponding device

A method includes a main interference reduction mode for reducing the interference generated by a wideband device toward a narrowband device. The main interference reduction mode is performed within the wideband device and includes at least one of detecting an emission from and a reception performed by the narrowband device. A group of at least one sub-carrier having frequencies interfering with frequencies used by the narrowband device is determined from the detection step. The bits of the punctured stream that correspond to the information carried by the interfering sub-carriers of the group are determined and processed so that the processed bits are mapped into a reference symbol having an amplitude within a threshold of zero.

Method and apparatus for reducing the interferences between a wideband device and a narrowband interferer

The method is for managing the operation of a wireless communication device including several different communication modules respectively adapted to operate according to several given communication protocols including a UWB module operating according to a UWB protocol based on an OFDM modulation scheme. The method includes controlling the UWB module for scanning a chosen frequency band, and managing a communication to be performed by the device on the basis of the scanning result.

Method of managing the operation of a wireless communication device and corresponding wireless device

To control a decoding latency, larger blocks are nonequally segmented into smaller ones. The decoding process starts directly after reception of the first small block. The latency is defined by the latency of the last small block decoding. Changing the number of iterations during the turbo-code decoding also permits control of the decoding latency.

Method and apparatus for encoding blocks of data with a blocks oriented code and for decoding such blocks with a controllable latency decoding, in particular for a wireless communication system of the WLAN or WPAN type

A method for detecting an eventual channel intended to a designated user equipment among n channels received by the designated user equipment during a given duration, each channel received during the duration carrying encoded data masked with an identifier associated to a user equipment. The method includes a selecting phase having a demasking step demasking the received masked encoded data of each channel with the identifier of the designated user equipment, a decoding step decoding the demasked encoded data of each channel to obtain a set of digital decoded data for each channel, a calculating step calculating, from each set of digital decoded data, a global information representative of a confidence in digital data received on the physical channel, and a detecting step detecting the channel from all the global information.

Method and system for blindly detecting a discontinuously transmitted shared channel, in particular blind high speed shared control channels detection

A device for decoding an incident FEC encoded packet of data within an ARQ scheme. The device includes a processor or processing means for performing successive decoding processes of successive intermediate FEC code encoded packets related to the incident FEC code encoded packet. The processor or processing means includes a FEC decoder. The processor or processing means included a determination unit or determination means for determining initial decoding conditions from the FEC code decoding result concerning the preceding intermediate FEC code encoded packet and from the current intermediate FEC code encoded packet, and the FEC decoder is for performing the current FEC code decoding using the initial decoding conditions.

Method and device for decoding packets of data within a hybrid ARQ scheme

The method and device include determining by removing N&#x2212;N, rows from an original generator matrix (G) defining the LDPC code and having N rows and N&#x2212;M columns for obtaining a generator sub-matrix (G) having N&#x2212;M columns and Nrows. The method also includes delivering by receiving an input data vector of size N&#x2212;M and multiplying the input vector with the generator sub-matrix for obtaining the punctured encoded code word.

Method and device for delivering punctured code words encoded with a LDPC code

An electronic device may include a source memory device partitioned into N elementary source memories for storing a sequence of input data sets, and a processor clocked by a clock signal and having N outputs for producing, per cycle of the clock signal, N output data sets respectively associated with the N input data sets stored in the N elementary source memories at respective source addresses. The electronic device may also include N single port target memories, N interleaving tables including, for each relative source address, the number of a target memory and the respective target address thereof, N cells connected in a ring structure. Further, each cell may also be connected between an output of the processor, an interleaving table, and a target memory.

Electronic device for reducing interleaving write access conflicts in optimized concurrent interleaving architecture for high throughput turbo decoding

Growing community of inventors

Geneva, Switzerland

Friedbert Berens