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US20090323662 |
METHODS AND APPARATUS FOR PACKAGE MANAGEMENT IN A VERTICAL MULTI-FREQUENCY NETWORK
Methods and apparatus for package management in a vertical multi-frequency network. A method includes linking a plurality of packages into one or more package groups wherein the packages are linked...
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US20090323847 |
OPEN-LOOP BEAMFORMING MIMO COMMUNICATIONS IN FREQUENCY DIVISION DUPLEX SYSTEMS
Techniques are provided for wireless communication between a first wireless communication device and a second wireless communication device. At a plurality of antennas of the first wireless...
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US20090323663 |
Base Station Device, Wireless Terminal, Wireless Communication Management Device, And Wireless Communication System
A base station device includes: a connection determining unit that determines whether a connection can be allowed in response to a wireless communication connection request from a wireless terminal...
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US20090316675 |
UPLINK PILOT MULTIPLEXING IN SINGLE USER MIMO AND SDMA FOR SINGLE CARRIER FREQUENCY DIVISION MULTIPLE ACCESS SYSTEMS
Systems and methodologies are described that facilitate adaptive uplink pilot multiplexing schemes. In various embodiments, frequency position and pilot channel bandwidth can be adaptively varied...
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US20090296680 |
Wireless Communication Method in Traffic System, Wireless Base Station, and Wireless Terminal
An on-vehicle device sends an allocation request for a wireless resource to a roadside device. The roadside device, in response to receiving this allocation request, allocates a roadside-vehicle...
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US20090290569 |
Method and Relate Apparatus for Enhancing Transmission Efficiency in a Transmitter of a Wireless Communication System
A method for enhancing transmission efficiency in a transmitter of a wireless communication system includes forming a first RLC PDU and a second RLC PDU with a size equal to a size of the first RLC...
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US20090279447 |
Antenna Selection with Frequency-Hopped Sounding Reference Signals
The embodiments of the invention describe a method for antenna selection in a wireless communication network. The network includes a transceiver having a set of antennas. The transceiver is...
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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...
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US20090268647 |
HIGH-FREQUENCY COMPONENT
A high-frequency component in which a low-frequency-band transmission characteristic is not degraded even when impedance mismatching is generated by providing a SAW filter in a high-frequency-band...
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US20090252127 |
BUILDING WIRELESS ROUTING STRUCTURES USING OUT OF BAND SIGNALING
In an example embodiment, an access point (AP) uses out-of-band signaling on a single non-DFS (Dynamic Frequency Selection) frequency band radio in an N-radio system to synchronize information with...
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US20090252142 |
COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, AND DATA TRANSMISSION METHOD
More than one communication device that is to simultaneously transmit identical data through multiple data transmissions using different radio wave multiplex types is determined based on the link...
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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...
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US20090245222 |
RETURN LINK TIME ADJUSTMENTS IN FDD OFDMA OR SC-FDM SYSTEMS
A method for adjusting timing in a Frequency Division Multiplexing (FDM) system, including receiving a request to perform a timing correction, generating a time domain FDM symbol, and controlling...
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US20090232121 |
Wireless Communications Using Frequency Agile Radio
A frequency agile radio configured to determine an estimated coverage area of a primary transmitter is disclosed. The radio includes at least one position device configured to determine a position...
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US20090225738 |
SYSTEMS AND METHODS FOR TRANSMITTING CHANNEL QUALITY INDICATORS FOR MUTLIPLE SUB-BANDS
A method for using an uplink control channel to transmit a channel quality indicator (CQI) for sub-bands of a frequency bandwidth is described. The uplink control channel is provided in a format....
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US20090219910 |
METHOD FOR TRANSMITTING AND RECEIVING SIGNALS USING MULTI-BAND RADIO FREQUENCIES
A method for transmitting and receiving signals using multi-band Radio Frequencies (RFs) is provided. The method transmits an information unit of a specific layer above a physical layer through a...
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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...
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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...
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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...
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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...
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US20090196165 |
TRANSMITTING AND RECEIVING APPARATUSES AND METHODS
A transmitting apparatus which transmits a transmit symbol in orthogonal-frequency division multiplexing (OFDM) is disclosed. The transmitting apparatus includes a unit which provides a unicast...
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US20090196273 |
Apparatus and method for transmitting data in wireless communication system
An apparatus and a method for a random access scheme for multi-channel in a wireless communication system are provided. The method for performing the random access scheme for the multi-channel in...
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US20090185545 |
Wireless Communication Systems and Methods
Embodiments of the present invention transmit signals simultaneously over a communication channel at different RF center frequencies, and may use a single power amplifier and antenna. In one...
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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...
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US20090161773 |
Channel Estimation Of Orthogonal Frequency Division Multiplexed Systems
Methods and apparatus, including computer program products, are provided for channel estimation. In one aspect, there is provided a receiver including a demodulator for decoding a signal including...
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US20090161529 |
TRANSMITTER AND RECEIVER
A description is given of a transmitter including a baseband chip, a radio frequency chip and an interface unit coupling the baseband chip and the radio frequency chip. The radio frequency chip...
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US20090147763 |
METHOD AND SYSTEM FOR MULTI-RADIO COEXISTENCE AND A COLLABORATIVE INTERFACE
Aspects of a method and system for multi-radio coexistence and a collaborative interface may include exchanging information between a plurality of radio transceivers integrated within a single...
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US20090147872 |
METHOD OF RANGING SIGNAL DESIGN AND TRANSMISSION FOR MIMO-OFDMA INITIAL RANGING PROCESS
A mobile communication system uses a multiple-input-multiple-output (MIMO) technology with an orthogonal frequency division multiplexing access (OFDMA) scheme. Multiuser diversity, multiantenna...
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US20090135922 |
POWER SAVINGS IN OFDM-BASED WIRELESS COMMUNICATION
In a wireless communications system using Orthogonal Frequency Division Multiplex technology, changing the nature of the signals being transmitted/received may be used to reduce power consumption....
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US20090135801 |
Communication device
The attenuation characteristics of an attenuator largely changes depending on the frequency of an input signal. Accordingly, a difference between the amounts of attenuation of gains of each two...
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US20090129361 |
METHOD AND APPARATUS FOR SEARCHING FOR OR TUNING TO ONE OR MORE RADIO STATIONS WITH MINIMUM INTERACTION WITH HOST PROCESSOR
A host system for searching for or tuning to one or more radio stations includes a host processor and a data processor. The data processor is configured to receive a command from the host...
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US20090129362 |
TRANSMISSION DEVICE AND TRANSMISSION METHOD
A disclosed transmission device includes a frequency scheduling unit configured to allocate, to each user, either frequency blocks that are consecutive frequency subcarrier blocks obtained by...
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US20090122777 |
Antenna Selection for Mobile Stations in OFDMA Networks
A method and a system for selecting antennas in an orthogonal frequency division multiple access (OFDMA) network. The network includes a base station and mobile stations. The mobile station...
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US20090109948 |
RADIO COMMUNICATION DEVICE FOR GENERATING AND TRANSMITTING DATA, RADIO COMMUNICATION DEVICE FOR RECEIVING AND DECODING DATA, METHOD FOR TRANSMITTING DATA AND METHOD FOR RECEIVING DATA
In various embodiments of the invention, a radio communication device for transmitting data, a radio communication device for receiving data, a method for transmitting data and a method for...
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US20090092118 |
INTERLEAVE APPARATUS AND INTERLEAVE METHOD
An interleave apparatus and an interleave method for preventing an increase in the number of retransmissions to improve the throughput. In a wireless communication apparatus having the interleave...
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US20090080401 |
FLEXIBLE STARTING TIME SCHEDULING ALGORITHM FOR BITMAP COEXISTENCE PROTECTION
A flexible start time (FST) scheduling algorithm operable at a base station is disclosed, to allocate resource in the time domain based on coexistence period bitmap (CBP) feedback gathered from...
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US20090080402 |
WIRELESS RECEIVER
A wireless receiver receiving a signal from a wireless transmitter which includes a plurality of transmission antennas and transmits data to which first phase rotation for controlling the maximum...
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US20090080497 |
SYSTEM AND METHOD FOR CONCURRENT FREQUENCY HOPPING OF RADIO COMMUNICATIONS
A method and system for selecting frequency channels for a concurrent dual transceiver system are provided. In one aspect, a single hop table for at least two transceivers is used. The single hop...
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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...
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US20090067402 |
System and Method For Distributed Input-Distributed Output Wireless Communications
A system and method are described for dynamically adapting the communication characteristics of a multiple antenna system (MAS) with multi-user (MU) transmissions (“MU-MAS”). For example, a...
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US20090067403 |
Selecting Wider Bandwidth Channels in a Wireless Network
Techniques are provided for selecting channels for a wider bandwidth operation mode of a wireless network, such as wireless network that operates in accordance with the IEEE 802.11n amendment....
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US20090059885 |
ADAPTIVE TIME-DOMAIN INTERPOLATION FOR OFDM SCATTERED PILOT SYMBOLS
A receiver for use in a pilot-aided OFDM system and a method of performing channel length estimation of a channel in a wireless communication system includes using transmitted and received wireless...
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US20090046694 |
RADIO TRANSMISSION APPARATUS, AND RADIO TRANSMISSION METHOD
Provided is a radio transmission device, which is enabled to improve a reception quality by improving the channel estimation precision of specific data such as control data. In this device, a...
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US20090040996 |
METHODS AND APPARATUS FOR SUPPORTING MULTIPLE COMMUNICATIONS MODES OF OPERATION
Methods and apparatus for supporting multiple modes of communication operation, e.g., with different parameters and/or frequency bands being used in the different modes of operation are described....
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US20090034503 |
RECEIVER AND RECEPTION METHOD FOR ESTIMATING CHANNEL IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS SYSTEM
A receiver and reception method for estimating a channel in an Orthogonal Frequency Division Multiple Access (OFDMA) system is provided. The receiver includes a delay estimator for estimating, from...
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US20090034504 |
HIGH-FREQUENCY COMPONENT
A high-frequency component includes a diplexer in which a high-pass filter and a low-pass filter are connected in parallel with an antenna port, a high-frequency circuit cascade-connected to the...
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US20090028085 |
Method for providing measurement gaps
A method comprising interrupting the reception of a first transmission to receive a predetermined channel; determining from receipt of said predetermined channel first timing information associated...
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US20090016295 |
CONTROL CHANNEL DESIGN TO SUPPORT ONE-TO-ONE, MANY-TO-ONE, AND ONE-TO-MANY PEER-TO-PEER COMMUNICATIONS
A protocol is provided that facilitates downlink concurrent peer-to-peer communications (within a time slot or traffic slot) between one device and many terminals as well as uplink concurrent...
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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...
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US20080310540 |
Signaling of implicit ACK/NACK resources
A method includes, in response to receiving implicit signaling of the radio resource, and in response to a plurality of wireless communication system cell-specific static and semi-static input...
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