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Orthogonal modulation using M-sequences and Hadamard transforms
Methods, systems, and devices are described for orthogonal modulation of signals using maximal length sequences and Hadamard transforms. Modulation symbols to...
Data transmission method based on cross-carrier scheduling, user
equipment, and base station
Embodiments of the present invention provide a data transmission method based on cross-carrier scheduling. The method includes: determining a first downlink...
Flow control in a network device
A process of scheduling stream packets for output from a multiplexing network device involves prioritizing the output of packets first according to stream...
Flow control in a network device
A network device provides output data rate control having variable bandwidth and a response time constant that increases according to an amount of time that an...
Filling the space-time channels in SDMA
Embodiments of the present invention provide an Access Point (AP) to transmit and receive RF signals in a wireless local area network (WLAN), comprising, a...
Accessing service guide information in a digital video broadcast system
Apparatuses may perform and methods may include receiving a digital broadcast signal that includes a physical layer pipe identified by a predetermined...
Method, apparatus, and computer program product for selecting weather
A method is provided herein for selecting a combination of a subset of weather stations from among a plurality of weather stations for estimating the weather at...
Efficient apparatus and method for audio signature generation using motion
An automatic content recognition system that includes a user device for the purpose of capturing audio and generating an audio signature. The user device may be...
Multi-channel audio processing
A method including: receiving at least a first input audio channel and a second input audio channel; and using an inter-channel prediction model to form at...
Schedule subscription system
A subscription system includes a national subscription server capable of tracking which local stations subscribe to particular radio station music formats, for...
In-train information display apparatus, in-train information display
system, and advertisement display result...
The present invention is an in-train information display apparatus that displays, to a passenger, advertisement content delivered from an advertisement-content...
Co-channel interference model and use thereof to evaluate performance of a
A computer simulates flight routes for simulated airborne transmitters across a spatial region divided into unit area tiles and over time based on actual...
Integrated two dimensional active antenna array communication system
A base station (BS) capable of communication with a number of transmission points includes a processor configured to control a beamforming transmission or...
Technique for monitoring and managing output power
An apparatus is disclosed configured for receiving a first alternating signal and for transmitting a second alternating signal. A detector is configured to...
Data retransmission method, apparatus, and system
A data retransmission method, apparatus, and system can improve a success ratio of data packet retransmission. A data retransmission method includes: after a...
Clock control circuit and transmitter
A transmitter 1 comprises a clock generation portion 4, FIFO portion 6, and serial signal creation portion 7. The clock generation portion 4 performs modulation...
Low-power mode signal bridge for optical media
System, methods and apparatus are described that facilitate transmission of data between two devices. A data transfer method includes receiving first data from...
Optical receiver with threshold control block
The invention concerns an optical receiver comprising: a photodiode (102) coupled to the input of a trans-impedance amplifier (308) such that the ...
Realizing coarse wavelength-division multiplexing using standard multimode
Tuning parameters of individual wavelength channels transmitted over a multimode optical fiber is provided. Characteristics of the multimode optical fiber used...
Laser system including optical amplification subsystem providing an
amplified laser output
A laser system including a seed laser and an optical amplification subsystem, receiving an output of the seed laser and providing an amplified laser output, the...
Digital generation of multi-carrier optical signals
A transmitter of optical signals uses a single light transmitter to modulate a multi-carrier signal. The multi-carrier signal is generated by performing digital...
Driving circuit for driving non-linear optical modulator by signal having
plural logic levels
A driving circuit for an optical modulator is disclosed. The driving circuit includes a differential amplifier and a DC-level equalizer. The differential...
An optical transmitter, comprising: a master laser device for generating a master signal; one or more slave laser devices, injected with the master signal such...
Optical transmission/reception device, optical communication system and
optical transmission/reception method
Even in a case where light sources at an optical transmission-side and an optical reception-side are made into a common light source, a optical transmission...
Optical test device and systems
Systems, methods, and devices are disclosed for monitoring optical communications between a managed location and a remote location. In particular, an optical...
Method and arrangement for monitoring optical transmission lines
There is proposed a mechanism for monitoring optical fibers (1) in an optical backhaul network that connects nodes (10, 20) of a distributed radio base station...
Determining properties of an optical communications path in an optical
A method of determining properties of an optical communications path between a first optical network node (A) and a second optical network node (B) determines,...
Dynamic allocation of subframe scheduling for time divison duplex
operation in a packet-based wireless...
Systems and methods for enabling the dynamic allocation of certain sub frames as downlink or uplink resources in a time division duplexed over the air...
Relay node and method for receiving a signal from a base station in a
mobile communication system
Provided are a method for receiving information on a relay node zone and reference signals for a relay node from a base station, and a relay node device using...
Location aware profiles in an aerial network
Disclosed embodiments may help an aerial vehicle network to provide substantially continuous service in a given geographic area. An example method may be...
Relays in a multihop heterogeneous UMTS wireless communication system
Aspects relate to a Remote NodeB Relay that appears similar to a NodeB, a Radio Network Controller (RNC), and served mobile devices. Also provided is a...
Communication method for source device, destination device and relay
A communication method of a source device according to an embodiment includes detecting a status of a first link directly connected from the source device to a...
Method and apparatus for transmitting uplink signal in wireless
A method and apparatus for transmitting an uplink signal in a wireless communication system are disclosed. A transmission apparatus for receiving an uplink (UL)...
Relay communication system
A relay communications system is described in which a base station is able to support both Frequency diversity R-PDCCH transmission and Frequency selective...
Multiple antenna distributed radio system
A radio receiver including: a serial data interface configured to receive a serial data signal from another radio receiver; a clock/data recovery circuit...
Method and apparatus for uplink multi-carrier transmit diversity
A method (400) and apparatus (300) for selecting one of a plurality of antennas (320, 322), on a UE (300) implementing transmit diversity in a multi-carrier...
Methods for adaptive multi-antenna selection
An embodiment of a method for adaptive multi-antenna selection, executed by an AP (access point), which contains at least the following steps. After a data...
Method and apparatus for operating a non-orthogonal multiple access scheme
in multiuser beamforming system
A frequency-efficient antenna operation method is provided in a multiuser beamforming system. The method includes determining channel correlations and channel...
Antenna configuration for co-operative beamforming
The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively...
Transmitter for transmitting discovery signals, a receiver and methods
A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver arc comprised in a radio communications...
Method and apparatus for efficient feedback in wireless communication
system supporting multiple antennas
The present invention relates to a wireless communication system, and more particularly, to a method and apparatus for efficient feedback in a wireless...
SU-MIMO, MU-MIMO and beamforming operations using synchronized WLAN
An apparatus for wireless communication includes a plurality of antennas, a master baseband integrated circuit (BBIC) and a slave BBIC. The antennas are...
Method for transmitting control information in multiple antenna system
A method of transmitting control information includes dividing frequency bandwidth into ranges to which the same PMI (precoding matrix index) is applied,...
User group specific beam forming in a mobile network
The present disclosure relates to a radio system (1), a base band unit (20) and a method (100) for relaying radio signals in a cell (101) of a mobile network....
Reciprocity calibration for multiple-input multiple-output systems
Systems and associated methods for reciprocity calibration of multiple-input multiple-output (MIMO) wireless communication are disclosed herein. In one...
Methods and apparatus for overlapping MIMO physical sectors
A system is provided comprising: a first wireless cell transmission point with a multiple-input-multiple-output (MIMO) capability; a second wireless cell...
Transmission apparatus and method, and reception apparatus and method
Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols...
MIMO and bandwidth signaling in millimeter-wave systems
Techniques to enable dynamic bandwidth management at the physical layer level while maintaining backwards compatibility in wireless systems is provided....
Method and apparatus for cancelling interference
A method and apparatus are disclosed for canceling interference. The method includes: composing a cooperative group with multiple adjacent evolved NodeB (eNB);...
Methods and systems for a distributed radio communications network
The present disclosure is directed to methods and systems for providing a distributed radio communications network. Each of a first gateway and a second gateway...