Matches 1 - 50 out of 93 1 2 >


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US20100316040 SPECTRAL SHAPING TO REDUCE PEAK-TO-AVERAGE RATIO IN WIRELESS COMMUNICATION  
Techniques for performing spectral shaping to achieve a desired peak-to-average ratio (PAR) are described. Spectral shaping may be selectively performed for a single-carrier frequency division...
US20060285531 Efficient filter weight computation for a MIMO system  
Techniques to efficiently derive a spatial filter matrix are described. In a first scheme, a Hermitian matrix is iteratively derived based on a channel response matrix, and a matrix inversion is...
US20080025284 SYSTEM FOR MULTI-FRAME ALIGNMENT  
A bidirectional communication system is provided. In one embodiment, a system comprises a host; and a plurality of remote units, wherein a plurality of tones is shared among the plurality of...
US20070274279 Distributed antenna system employing digital forward deployment of wireless transmit/receive locations  
A communication system implements a method of bidirectional communication of signals to/from one or more wireless transmit locations. Transmitting signals to one or more wireless transmit...
US20070064665 Method and apparatus for accessing an uplink random access channel in a single carrier frequency division multiple access system  
A method and apparatus for accessing a contention-based uplink random access channel (RACH) in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. A wireless...
US20100098042 USING THE SAME MULTIPLEXED RADIO RESOURCE FOR PILOT AND INFORMATION SIGNALS  
A method and apparatus for using the same multiplexed radio resource to simultaneously transmit a pilot sequence and an information signal is described herein. After traveling through a multi-path...
US20080225822 TRANSMISSION OF ACK/NACK AND TRANSMIT POWER CONTROL FEEDBACK IN EVOLVED UTRA  
A method for transmitting feedback information for a wireless transmit receive unit (WTRU) includes multiplexing the feedback information with an uplink shared channel, mapping the multiplexed...
US20050237989 Method of allocating subcarriers in orthogonal frequency division multiplexing (OFDM) cellular system  
A method of allocating subcarriers in a cell is disclosed. More specifically, a method of allocating a plurality of subcarriers to an user equipment (UE) in a mobile communication system using...
US20080151856 METHOD AND APPARATUS FOR COGNITIVE RADIO POLICY CHANGE  
A method of operation of a cognitive radio in a hierarchical group of cognitive radios, the hierarchy of cognitive radios including at least one master cognitive radio that has a higher position...
US20070086406 Methods for Assigning Resources in a Communication System  
Embodiments of the invention provide methods for assigning resources to Node Bs for communication with a plurality of user equipments (UEs) in each Node B. A central node receives metrics...
US20080232493 COMBINED PRECODING VECTOR SWITCH AND FREQUENCY SWITCH TRANSMIT DIVERSITY FOR SECONDARY SYNCHRONIZATION CHANNEL IN EVOLVED UTRA  
A method of providing transmit diversity for a secondary synchronization channel (S-SCH) includes generating a S-SCH signal, performing a frequency switched transmit diversity (FSTD) process on...
US20080056227 ADAPTIVE BROADCAST MULTICAST SYSTEMS IN WIRELESS COMMUNICATION NETWORKS  
A method in a wireless communication network infrastructure entity including broadcasting information on a broadcast channel for receipt by broadcast wireless communication terminals in the...
US20090245221 MULTIRADIO OPERATION USING INTERFERENCE REPORTING  
A system for managing a plurality of wireless communication mediums that may operate in a substantially simultaneous manner. The plurality of wireless communication mediums may be supported by one...
US20070019602 Network connectivity system and method  
A method of configuring an electronic device for communications with a communications network includes establishing a wireless communications link between a first electronic device and a second...
US20090219908 METHOD AND SYSTEM FOR PROCESSING SIGNALS VIA DIPLEXERS EMBEDDED IN AN INTEGRATED CIRCUIT PACKAGE  
Methods and systems for processing signals via diplexers embedded in an integrated circuit package are disclosed and may include generating via a diplexer, one or more RF signals at different...
US20080170544 METHOD OF TRANSMITTING BETWEEN TWO NODES  
A method comprising transmitting a busy signal from a first node; receiving said busy signal at a second node; and transmitting data from said second node to said first node on a channel...
US20070288954 Wallpaper setting apparatus and method for audio channel in digital multimedia broadcasting service  
An apparatus and method for providing video data of a video channel as a wallpaper during reception of broadcast data of an audio channel in a digital multimedia broadcasting (DMB) environment is...
US20050058114 Ultra-wideband communication protocol  
A communication protocol for ultra-wideband communications is provided. The present invention provides compatibility and interoperability between ultra-wideband communications devices within...
US20050053099 Timing advance determinations in wireless communications devices and methods  
A method in a wireless communications device including obtaining timing advance, for example, by determining (430) timing advance based on a distance of the wireless device from a base transceiver...
US20090274112 Initial Access Channel for Scalable Wireless Mobile Communication Networks  
Physical layer structures and access schemes for use in such networks are described and in particular initial access channel (IACH) structures are proposed. A spectrum efficient downlink (DL) IACH...
US20060251041 Radio resource allocation in telecommunication system  
A solution for radio resource allocation in a cellular telecommunication system is provided. According to the invention, the frequency bands of a plurality of cells of the telecommunication system...
US20080298336 MACRO-DIVERSITY TECHNIQUE FOR MULTICAST TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM  
The present invention provides a method multicasting that provides macro-diversity. Embodiments of the method may include receiving, at a mobile unit, a plurality of encoded signals indicative of...
US20050237923 Multi-bank OFDM high data rate extensions  
A transmitter 200 is provided. The transmitter 200 comprises a mapper 207 operable to map a bit stream into a plurality of tones to promote high data rate multi-band orthogonal frequency division...
US20050141562 Method for reducing radio interference in a frequency-hopping radio network  
A method for reducing interference between a first frequency-hopping radio communications network and a second frequency-hopping radio communications network, comprising: predicting a possible...
US20050111427 SDMA training and operation  
A network comprising a base station and multiple mobile devices may use a training phase for the base station to develop parameters that enable spatial division multiple access (SDMA) techniques...
US20100220651 Method and apparatus for broadcasting and receiving system information in OFDMA systems  
A method for broadcasting system information via a broadcast channel (BCH) in an OFDMA system is provided. The BCH comprises one or more two-dimensional resource blocks. A plurality of pilot tones...
US20090168741 WIRELESS COMMUNICATION APPARATUS  
A wireless communication apparatus comprises a selection module to select an application from applications to be run on the apparatus, a movement information generation module to generate movement...
US20050013238 OFDM frame formatting  
A method for generating an orthogonal frequency division multiplexing (OFDM) frame for wireless communications begins by generating a preamble of the OFDM frame, wherein the preamble includes...
US20110069693 Multicarrier Transmit Diversity in UTRAN for HSPA  
Multicarrier transmit diversity in UTRAN for HSPA, comprising a baseband unit and a remote radio unit of a Node B configured for receiving a data stream from an RNC and subsequently generating N...
US20100195586 Multiband-operation in wireless communication systems  
A method and wireless communication network that employs adapted control channel information to facilitate centralized and distributed scheduling of network resources for a network with mobile...
US20090219909 METHOD FOR SWITCHING AND MANAGING FREQUENCY ACCESS IN COGNITIVE RADIO SYSTEM, BASE STATION AND SUBSCRIBER STATION USING THE SAME  
Provided are a channel switching method for effectively performing channel switching in a cognitive radio system while protecting an incumbent user, a method of managing a frequency channel, and a...
US20100309901 SYSTEMS AND METHODS FOR MAINTAINING A CONTROLLED POWER OUTPUT AT AN ANTENNA PORT OVER A RANGE OF FREQUENCIES DEFINED BY TWO OR MORE FREQUENCY BANDS  
A multiband transceiver (200) including transmit sub-circuits (TSCs) arranged in parallel, a multiplexer (222) receiving RF signals from the TSCs at input ports (290, 292, 294), and a directional...
US20170054485 FILTER MODULE SUPPORTING CARRIER AGGREGATION AND ELECTRONIC DEVICE INCLUDING THE SAME  
A filter module supporting a carrier aggregation (CA) and an electronic device including the same. The electronic device supporting a carrier aggregation may include one or more antennas and a...
US20110310877 Coverage Extension Using Carrier Diversity In Multi-Carrier Communication Systems  
Embodiments are described to address coverage difference problems in communication systems (300) that operate in multiple frequency bands. Embodiments are described that utilize both Carrier...
US20080049707 Transmission packet for wireless transmission in a high frequency band, and method and apparatus for transmission/receiving using the same  
A wireless communication technology, and more particularly, a transmission packet for wireless transmission in a high frequency band, and a method and apparatus for transmitting and receiving...
US20060013182 Selective multicarrier CDMA network  
A multicarrier CDMA system allows the number of carrier frequencies supporting a connection to be dynamically varied. The packet stream is divided into one or more substreams depending on the...
US20070047512 WIRELESS COMMUNICATION METHOD AND APPARATUS FOR SELECTING A SERVING CELL AND NODE-B IN AN SC-FDMA SYSTEM  
A method and apparatus for selecting a serving cell/Node-B in a single carrier frequency division multiple access (SC-FDMA) system are disclosed. For intra-Node-B serving cell selection, a serving...
US20110013506 BASE STATION APPARATUS AND COMMUNICATION CONTROL METHOD  
A base station apparatus capable of communicating with a user equipment terminal using a downlink shared channel is disclosed. The base station apparatus includes a user selection unit selecting a...
US20100061360 DEDICATED REFERENCE SIGNAL STRUCTURES FOR SPATIAL MULTIPLEXING BEAMFORMING  
A transmitter is for use with a cellular communication network and includes a beamforming generation unit configured to generate a downlink beamforming transmission corresponding to multiple-layer...
US20090074088 Adaptive Fragmentation for HARQ in Wireless OFDMA Networks  
A method performs a hybrid automatic repeat-request (HARQ) operation in a wireless orthogonal frequency division multiple access (OFDMA) network. A quality of a channel between a transmitter and a...
US20090203323 UPLINK CONTROL SIGNALING IN A COMMUNICATION SYSTEM  
A system and method for uplink control signaling in a communication system includes a step of transmitting (200) the uplink control signaling in a frequency resource of the communication system...
US20160276748 ANTENNA APPARATUS AND METHODS FOR PROVIDING MIMO AND CARRIER AGGREGATION FOR MOBILE DEVICES  
Multi-element antenna apparatus for mobile devices and methods of utilizing the same. In one embodiment, the antenna apparatus includes three antenna elements configured to operate in a plurality...
US20080316994 Synchronization in a mobile communications network  
A basestation, for example a femtocell basestation for use in a mobile communications network, has a frequency synthesizer, for generating signals at desired frequencies, and also has a wireless...
US20070014253 Wireless channel searching method, wireless transmitting/receiving system and wireless transmitting apparatus  
The present invention relates to a method of searching a wireless channel by searching unused wireless channels. A list of the searched unused wireless channels is stored. A multimedia signal...
US20140376428 MULTI-FREQUENCY RANGE PROCESSING FOR RF FRONT END  
Techniques for supporting multi-frequency range signal processing for a wireless device. In an aspect, a first antenna is provided to support first and third frequency ranges. A second antenna is...
US20080240032 SYSTEM AND METHOD FOR CONDENSED FREQUENCY REUSE IN A WIRELESS COMMUNICATION SYSTEM  
A legacy spectrum allocation results in inefficient use of the spectrum now allocated to broadband services. A broadband wireless OFDMA communication system allocates channels with overlap between...
US20120182986 Timing Control  
A method including at a first device configured for making one or more transmissions to a second device in one or more of a plurality of frequency blocks and configured to receive respective...
US20090213802 BASE STATION, COMMUNICATION TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD  
A disclosed base station employs a multicarrier scheme and performs frequency scheduling in a frequency band including multiple resource blocks each including one or more subcarriers. The base...
US20080123614 Wireless Communication Apparatus  
The present invention eliminates a DC offset problem due to self-mixing in performing frequency conversion on a multiband OFDM_UWB signal by a direct conversion scheme. Capacitors #1, #2, and #3...
US20130094490 WIRELESS COMMUNICATION APPARATUS  
A wireless communication apparatus has a first communication unit configured to perform at least one of transmission and reception by using a multicarrier signal constituted by a plurality of...

Matches 1 - 50 out of 93 1 2 >