Sony Deutschland Gmbh

Sony Corporation

Sony International (europe) Gmbh

Samsung Electronics Co., Ltd.

Other

Wi-fi One, LLC

Richard Stirling-Gallacher

Zhaocheng Wang

Ralf Boehnke

Jens-Uwe Jürgensen

Qi Wang

Zhouyue Pi

Stefan Kornprobst

Ying Li

Sridhar Rajagopal

Kaushik Morapakkam Josiam

Thomas Dölle

Paul James

John Halton

Jens-Uwe J&uuml;rgensen

Jianzhong Zhang

Farooq Khan

Young-Han Nam

Mitsuhiro Suzuki

Rakesh Taori

Kentaro Odaka

Krishna Kamal Sayana

Ralf Böhnke

Seiichi Izumi

Stefan Koch

Juan Benigno Nogueira-Nine

Marcel Blech

Hamid Amir-Alikhani

Pavan Nuggehalli

Furkan Dayi

Marc Guthoerl

Juns-Uwe Jurgensen

Juán Nogueira-Nine

Taku Nagase

A transmitting device for transmitting data symbols and pilot symbols in an OFDM transmission system; the device comprising symbol generating means for generating said data symbols and said pilot symbols, means for transmitting said data symbols and pilot symbols respectively by using a plurality of subcarriers of said OFDM transmission system, wherein said symbol generating means is designed to selectively generate a first type pilot symbol and a second type pilot symbol being orthogonal to said first type pilot symbol so that a pilot symbol pattern in the frequency dimension comprises at least said first type pilot symbol to be transmitted by using a predefined subcarrier and second type pilot symbol to be transmitted by using other predefined subcarrier, and wherein said pilot symbol pattern has a different pattern from a succeeding pilot symbol pattern in time dimension.

Pilot pattern design for a STTD scheme in an OFDM system

According to the present invention a transmitter and a transmitting method for communicating data symbols over a communication channel, for example, according to the CDMA system is presented. The transmitter () comprises means () for spreading each data symbol with a respective spreading code, wherein the spreading codes are mutually orthogonal. Means () for scrambling are provided to scramble each spread symbol with a respective scrambling code, the scrambling codes respectively having the same length as the spreading codes. Furthermore, means () for the transmission of the spread and scrambled symbols are provided. According to the present invention the means () for scrambling are provided with a plurality of different scrambling codes, which can be used simultaneously within the same link.

Transmitter and transmitting method increasing the flexibility of code assignment

A base station enables a mobile station to employ a random access retransmission scheme in a wireless communication network. The mobile station includes a plurality of antennas configured to communicate with the base station. The mobile station also includes a processing circuitry coupled to the plurality of antennas. The processing circuitry is configured to perform a random access during a random access channel (RACH) burst. The processing circuitry also is configured to at least one of: transmit a random access signal with at least one of an initial transmit power level and an initial transmit beamwidth, and, in response to a random access attempt failure, change at least one of a transmit (Tx) power level and a Tx beamwidth and retransmit the random access signal.

Apparatus and method for random access with multiple antennas in a wireless network

A method for performing random access by a User Equipment (UE) in a wireless network, comprises configuring at least one UE transmit beam for a transmission of a random access signal, generating the at least one UE transmit beam using an antenna array according to the configuration, and transmitting the random access signal to a base station (BS) on the at least one UE transmit beam. An user equipment for performing random access in a wireless network, the User Equipment comprises a processing circuit configured to configure at least one UE transmit beam for a transmission of a random access signal, and generate the at least one UE transmit beam using an antenna array according to the configuration, and transmit the random access signal to the Base Station (BS) on the at least one UE transmit beam.

Method and apparatus for random access in communication system with large number of antennas

Methods and apparatus for sending and receiving mobile station (MS) specific channel state indication reference symbols (CSI-RS) is provided. A common CSI-RS is sent from a base station (BS) and is received by an MS. First feedback is sent to the BS from the MS based on the common CSI-RS. A configuration of an MS-specific CSI-RS is sent from the BS and received by the MS. An MS specific CSI-RS is sent from the BS and is received by the MS. Second feedback is sent to the BS from the MS based on the MS specific CSI-RS.

Method and apparatus to support channel refinement and multi-stream transmission in millimeter wave systems

An antenna arrangement comprises a first antenna array comprising a systematic arrangement of first antennas, at least two second antenna arrays, arranged adjacent to said first antenna array and each comprising a systematic arrangement of second antennas, at least two third antenna arrays each comprising at least one third antenna, wherein a third antenna array is arranged at a border area of said first antenna array and a second antenna array and replaces a first antenna closest to the adjacent second antenna array and a second antenna closest to the adjacent first antenna array. Said first or second antennas are transmitting and the other of said first or second antennas are receiving radiation. The at least one third antenna is transmitting and/or receiving radiation.

Antenna arrangement and beam forming device

An apparatus includes a baseband signal processing block, processing circuitry, and at least one radio frequency (RF) communication module communicably coupled to the baseband signal processing block and configured to communicate using a selected mode of communication in a channel. The processing circuitry is configured to detect a sub-channel band of unavailable spectrum within the channel, the band of unavailable spectrum being less than a whole of the channel. The channel includes one contiguous band of frequencies divisible into at least two non-overlapping non-adjacent sub-channels. The processing circuitry is configured to select one mode of communication selected from a plurality of modes including: a carrier aggregation (CA) only mode, a multiple input multiple output (MIMO) only mode, and a carrier aggregation multiple input multiple output (CA-MIMO) hybrid mode.

Apparatus and methods for flexible RF configuration in multi-antenna wireless systems

The present disclosure relates to a beam forming device, comprising a transmit unit comprising at least two transmit elements that transmit radiation towards a scene, a receiver unit comprising at least two receive elements that receive radiation from said scene and that generate receive signals from said received radiation, and a beam forming unit that performs beam forming to obtain beam formed output signals from said receive signals by use of beam forming weights, wherein said beam forming weights are adapted to a distance between the scene and one or more transmit elements and/or receive elements, said distance being indicated by a distance indicator, and wherein said beam forming weights are changed if said distance changes.

Beam forming device and method

A beam forming device and method as well as to a beam steering device and method are described. The imaging beam forming device comprises a wideband transmit unit comprising at least one transmit antenna, a receiver unit comprising at least two receive antennas and at least one receive element that receive radiation from said scene and that generate receive signals from said received radiation, and a beam forming unit that performs beam forming to form a receive beam and obtain beam formed output signals from said receive signals by use of beam forming weights. For different samples or groups of subsequent samples of a receive signal, a sample representing said receive signal at a different frequency, a frequency-dependent weight is used for beam forming, which frequency-dependent weights are adapted to result in a predetermined shape of said receive beam.

Wideband beam forming device; wideband beam steering device and corresponding methods

A station in a wireless communication system includes a processor circuitry configured to form at least a first plurality of data streams and a second plurality of data streams, and a digital precoder configured to receive the first plurality of data streams and the second plurality of data streams. The wireless station can further include a plurality of radio frequency (RF) beamforming chains connected to the digital precoder and configured to form at least one RF envelope, wherein the digital precoder is configured to steer a plurality of digital beams within the at least one RF beam envelope, the digital beams forming a plurality of spatially distinct paths for the first plurality of data streams and a plurality of spatially distinct paths for the second plurality of data streams, and a plurality of antennas operably connected to the RF beamforming chains.

Multi-user and single user MIMO for communication systems using hybrid beam forming

Growing community of inventors

Stuttgart, Germany

Richard Stirling-Gallacher