Matches 1 - 50 out of 73 1 2 >


Match Document Document Title
US20150237558 Handover Signaling for Beamforming Communications  
A first base station receives a first message comprising one or more parameters indicating whether a wireless device supports configuration of a number of channel state information (CSI)...
US20130051360 SATELLITE COMMUNICATION SYSTEM EMPLOYING A COMBINATION OF TIME SLOTS AND ORTHOGONAL CODES  
A satellite communication system for communicating between a plurality of user terminals is disclosed having at least one satellite which provides multiple beams, a plurality of user terminals...
US20050058111 WLAN device having smart antenna system  
A WLAN (Wireless Local Area Network) device having a smart antenna system is disclosed for increasing the number of user under a limited bandwidth and a confined environment. The WLAN device...
US20070002802 Access ports with directional antennas  
An access port for use in a wireless network having a wireless switch in accordance with an exemplary embodiment of the present invention is provided. The access port includes a transceiver...
US20060159045 Reverse link rate and stability control  
In a radio access network, the reverse link rate of an access terminal is controlled and stabilized by determining a number of connections in one or more sectors in which the access terminal has a...
US20050250503 Wireless networks frequency reuse distance reduction  
A method for improving spectral efficiency of a wireless network is provided. A microcell concept is utilized to improve isolation between the reuse pairs of antennas, thus significantly reducing...
US20070297371 Scalable Wireless Mesh Networks  
Multi-hop architectures of a wireless mesh network (MWN) compatible with the existing WiFi devices and potentially offering a much larger total capacity than a single-hop WiFi cell. The proposed...
US20080002627 METHODS FOR IMPROVING WIRELESS COMMUNICATIONS WHEN INTERFERENCE OR SIGNAL LOSS IS DIRECTIONAL IN NATURE  
A client station in a wireless local area network (WLAN) communication system includes a beam commutation algorithm and a smart antenna responsive to the beam commutation algorithm for selecting...
US20070054632 Wireless Network Scheduling Data Frames Including Physical Layer Configuration  
A wireless network is disclosed in which individual wireless stations can be configured to implement any of a plurality of physical configurations including antenna configurations. Such antenna...
US20060209764 User scheduling method for multiuser MIMO communication system  
In multiuser Multiple-Input Multiple-Output (MIMO) systems in which a base station performs scheduling on the basis of channel information fed back from a plurality of terminals, the user...
US20070230403 START OF PACKET DETECTION FOR MULTIPLE RECEIVER COMBINING AND MULTIPLE INPUT MULTIPLE OUTPUT RADIO RECEIVERS  
A method and an apparatus for detecting the start-of-packet in a wireless receiver operating in a packetized wireless network. One method embodiment includes calculating a plurality of start of...
US20130308608 ANTENNA SWITCHING DEVICES, METHODS, AND SYSTEMS FOR SIMULTANEOUS COMMUNICATION  
This disclosure provides systems, methods, and apparatus for antenna switching for simultaneous communication. One apparatus embodiment includes a plurality of antennas including a first antenna,...
US20050025099 Subscriber unit in a hybrid link incorporating spatial multiplexing  
The present invention provides methods and apparatus for implementing spatial multiplexing in conjunction with the one or more multiple access protocols during the broadcast of information in a...
US20130148634 Asymmetric Resource Sharing Using Stale Feedback  
With the asymmetric resource sharing disclosed herein, a base station transmits fewer information symbols at some transmission times to one or more mobile terminals than to other mobile terminals...
US20050286448 Wireless local area network repeater  
A repeater (200) facilitates wireless communication between a first communication device (100) and a second communication device (105) in a wireless network using a time division duplex protocol...
US20070291700 TRANSMITTER, COMMUNICATION SYSTEM AND COMMUNICATION METHOD  
The present invention provides a transmitter, a communication system and a communication method thereof. The transmitter according to the present invention comprises a transmission channel...
US20070140208 Method and system for multiple-input-multiple-output (MIMO) communication in a wireless network  
A method and a system for Multiple-Input-Multiple-Output (MIMO) communication in a wireless network are provided. According to the method, streams of the data of a user-equipment are communicated...
US20070153817 Interleaved and directional wireless mesh network  
A directional and interleaved wireless mesh network is described where mesh nodes have directional antennas facing in horizontally orthogonal directions. The antennas can be focused to have a beam...
US20080212538 Antenna Selection For Multi-Input Multi-Output System  
A transmitting station in a radio network includes at least one radio frequency (RF) chain, a packet generator configured to generate a sounding packet including a number of training frames and a...
US20050190725 Diversity reception method and diversity receiver  
Reception level frequency distribution is determined. A frequency correlation bandwidth is determined in accordance with intervals between peaks or dips, or alternatively intervals between...
US20100254353 POLARIZATION REUSE AND BEAM-FORMING TECHNIQUES FOR AERONAUTICAL BROADBAND SYSTEMS  
Aeronautical broadband communication is enhanced by providing an apparatus having a first antenna configured to communicate using a signal orientation corresponding to a first polarization, and a...
US20150023323 MOBILE COMMUNICATION SYSTEM, BASE STATION AND COMMUNICATION CONTROL METHOD  
In a mobile communication system in which a CoMP cooperating set formed by a plurality of base stations and a user terminal perform communication therebetween, the CoMP cooperating set includes a...
US20060056345 Method and system for supporting use of a smart antenna in a wireless local area network  
A method for supporting use of a smart antenna in a wireless local area network (WLAN) including an access point (AP) and a station (STA) begins by selecting an antenna beam by the AP to use for...
US20070058590 User selection method in a zero-forcing beamforming algorithm  
In a method for selecting a transmission target terminal in a zero-forcing beamforming algorithm, information about a channel capacity of each terminal is received from all K terminals. A terminal...
US20050141459 Apparatus and associated methods to reduce management overhead in a wireless communication system  
An apparatus and associated methods to reduce management overhead in a wireless communication system are generally introduced herein.
US20050094602 System and method for providing multi-beam scheduling  
Embodiments of the present invention relate to communication systems. Such communication systems may include a beamformer that is adapted to provide a plurality of beams, each of the plurality of...
US20060245346 Method and/or system for reduction of PAPR  
Embodiments of methods and/or systems for reducing PAPR are disclosed.
US20060077935 Antenna selection method  
A method and apparatus for initiating a telecommunications uplink from a mobile terminal to a telecommunications network. A preamble signal is transmitted from the mobile terminal to the network...
US20060182016 Data transmission over a network having initially undetermined transmission capacity  
Data to be transmitted over a network comprise a first part (perhaps audio) which is always to be transmitted and alternative second parts (perhaps video coded at different compression rates) of...
US20080056201 INTERFERENCE PARAMETER REPORTING FROM CLIENT DEVICES TO ACCESS POINT FOR USE IN MODIFYING WIRELESS OPERATIONS  
A wireless network in a communication infrastructure has a packet switched backbone network and includes a plurality of access points and services a plurality of client devices. The plurality of...
US20060251025 Multiple input and multiple output communication apparatus and channel scanning method thereof  
A MIMO communication apparatus and a channel scanning method thereof that can reduce a channel scanning time are provided. The channel scanning method includes receiving an input request for...
US20070183371 Communication system with MIMO channel estimation using peak-limited pilot signals  
In a collaborative, multiple input, multiple output wireless communication system, a transmitting device transmits a peak-limited pilot signal to a receiving device. The receiving device...
US20090010227 RETRANSMISSION METHOD FOR MULTIPLE ANTENNA SYSTEM  
A packet retransmission method for use in a communication system transmitting a signal via at least two antennas is disclosed. The packet retransmission method includes the steps of: a) receiving...
US20060056357 Low-if pre-preamble antenna diversity receiver  
An antenna diversity receiver has a low-IF receiving mode and a diversity selection mode, and a switch arrangement for coupling one of the antennas to the IF channels when in the receiving mode,...
US20150117415 METHOD AND APPARATUS FOR TRANSITIONING BETWEEN CELL SITES  
A system that incorporates the subject disclosure may include, for example, a circuit for initiating a first multiple-input and multiple-output (MIMO) communication session with a primary base...
US20070070953 METHOD OF COOPERATIVELY RELAYING DATA IN CELLULAR NETWORKS FOR A BROADCAST MULTICAST SERVICES  
A method of transmitting subpackets in a mobile communication system using at least one frequency carrier is disclosed. More specifically, the method comprises receiving a first broadcast...
US20060176858 Mobile station apparatus and control method for the mobile station apparatus  
A mobile station apparatus communicates with a wireless base station apparatus to which closed-loop transmission diversity control is applied, the closed-loop transmission diversity control...
US20070263569 Detection Complexity Reducing Apparatus and Method in Multiple Input Multiple Output (MIMO) Antenna System  
An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes...
US20070104149 Method and system for providing adaptive modulation and coding in a multi-carrier wireless network  
A method of providing adaptive modulation and coding in a multi-carrier wireless network that includes a plurality of subscriber stations is provided. The method includes, for each of the...
US20070058521 Method and apparatus for frame synchronization in a distributed MIMO OFDM system  
The present invention relates to technique for frame synchronization in a distributed MIMO-OFDM system, and the method thereof comprises: generating step: generating preambles for synchronization...
US20070223422 RESOURCE ALLOCATION TO SUPPORT SINGLE-USER AND MULTI-USER MIMO TRANSMISSION  
Techniques for supporting MIMO transmission are described. Users are classified into a first group of users to be scheduled individually for MIMO transmission and a second group of users that can...
US20080267133 MIMO WIRELESS COMMUNICATION SYSTEM, MIMO WIRELESS COMMUNICATION APPARATUSES, AND WIRELESS COMMUNICATION METHOD  
When a plurality of user stations (STAs) simultaneously communicate with an access point (AP) through an SDMA (Space Division Multiple Access) channel in a MIMO wireless communication system,...
US20050053039 Bluetooth communication  
The present invention provides apparatus and methods for performing Bluetooth communications. The apparatus comprises a plurality of antennas and a signal strength monitoring means for monitoring...
US20100254354 Softer and Soft Handoff in an Orthogonal Frequency Division Wireless Communication System  
Transmission patterns for pilot symbols transmitted from a mobile station or base station are provided. The patterns may be selected according to a location of the mobile station with respect to...
US20060221904 Access point and method for wireless multiple access  
Described is an access point a plurality of antennas, a plurality of transceivers and a processor. Each of the antennas receives a first signal from each of a plurality of wireless devices. The...
US20060007890 Method and apparatus for performing adaptive control of beam forming  
In a beam forming adaptive control method, a signal of each mobile station is separated from a set of signals received at a sector antenna from multiple mobile stations. The signals are...
US20050068909 Apparatus and method for controlling a transmission scheme according to channel state in a communication system  
Disclosed is a transmission scheme for a transmitter according to a channel state in a communication system where the transmitter has M transmit antennas and a receiver has N receive antennas....
US20090232100 System and Method for Dynamic Receive Diversity Allocation  
A system and method for dynamic receive diversity allocation. A communications device comprises a first physical layer (PHY) unit, a second PHY unit, a first signal path coupled to a first antenna...
US20070223423 GROUPING OF USERS FOR MIMO TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM  
Techniques for supporting MIMO transmission are described. User equipments (UEs) are classified into a first group of UEs to be scheduled individually and a second group of UEs that can be...
US20070171811 Apparatus for effectively transmitting in orthogonal frequency division multiple access using multiple antenna and method thereof  
The present invention relates to a transmitting apparatus of an OFDMA system and a method thereof. The transmitting apparatus includes an encoder for modulating data to be transmitted into data or...

Matches 1 - 50 out of 73 1 2 >