Class / Patent application number | Description | Number of patent applications / Date published |
455008000 | Failure compensation (e.g., spare channel) | 13 |
20080293358 | Wireless Communication Mimo System With Repeaters - The present invention relates to a wireless communication system (C) comprising at least one base station ( | 11-27-2008 |
20080299896 | Short Range Booster With Multiple Antennas - Systems, methods and techniques for operating a wireless repeater with multiple antennas are presented. Signals from a wireless communication device are received by a wireless repeater on at least two branch channels associated with at least two repeater receiver antennas. Path or space diversity is resolved from the signals, and the signals are processed on the at least two branch channels to produce at least one strong signal to be repeated to another wireless communication device. | 12-04-2008 |
20090068944 | APPARATUS AND METHOD FOR ALLOCATING A DEDICATED ACCESS ZONE TO RELAY STATION (RS) IN BROADBAND WIRELESS ACCESS (BWA) COMMUNICATION SYSTEM - An apparatus and a method for allocating a dedicated access zone to a Relay Station (RS) in a multihop relay Broadband Wireless Access (BWA) communication system are provided. A communicating method of the RS includes relaying communications between a Base Station (BS) and a Mobile Station (MS), determining whether a dedicated resource is necessary for the communications with the MS, when the dedicated resource is necessary, generating a dedicated access zone request message which comprises necessary bandwidth information and transmitting the dedicated access zone request message to the BS. | 03-12-2009 |
20090247068 | TRANSMISSION SYSTEM AND TRANSMISSION METHOD - Provided is a transmission system with increased degree of freedom in a lane configuration, which corrects disalignment of data sequences in respective channels due to differences in arrival time, thereby freely changing a number of lanes. The transmission system includes: a transmitter; a relay; and a receiver, the transmitter inputting data to be transmitted to the receiver, the relay transmitting the data transmitted by the transmitter to the receiver, the receiver receiving the data transmitted by the relay. The transmitter inserts into the data sequences channel information indicating a channel to which the data sequence is to be output. The relay corrects, based on the channel information, disalignment in an order of arrival of the data sequences received via a plurality of channels, the disalignment being generated by the differences in arrival time of the data sequences among the channels. | 10-01-2009 |
20090264065 | CIRCUIT FOR COMPENSATING PASSBAND FLATNESS, APPARATUS AND METHOD FOR COMPENSATING PASSBAND FLATNESS - Disclosed is an apparatus for compensating passband flatness according to the present invention. The apparatus for compensating passband flatness for a mobile communication repeater to compensate passband flatness of band passed input signals comprises: a circuit for compensating passband flatness that includes a varactor diode formed to be connected to an inductance element to correct micro resonance frequencies for passbands of input signals according to voltages applied from the outside; and a controller that controls voltages input to the circuit for compensating passband flatness and varies the voltages applied to the varactor diode of the circuit for compensating passband flatness based on preset voltage values applied to the varactor diode so that passband flatness characteristics are compensated according to the corresponding frequency bands. | 10-22-2009 |
20090325480 | METHOD AND APPARATUS FOR SELECTING AND PROCESSING SIGNALS FROM A SOURCE STATION AND RELAY STATIONS - Techniques for selecting and processing signals from different stations in a wireless network are described. A destination station may receive a direct signal from a source station and at least one relay signal from at least one relay station. The destination station may determine metrics for the source and relay stations, e.g., based on pilots received from these stations. The destination station may select at least one signal to process from among the direct and relay signals based on the metrics for the source and relay stations. The destination station may select the direct signal if the metric for the source station exceeds a threshold. The destination station may select the relay signal from each relay station having a metric exceeding at least one threshold. The destination station may process the at least one selected signal to recover a transmission sent by the source station to the destination station. | 12-31-2009 |
20100068992 | Emergency Communications Controller and Console - An emergency communications device contains dispatch consoles for use by user that contains multiple repeaters and multiple communication networks. The multiple repeaters and multiple communication networks are used for redundancy purposes, in case the repeater or communication network in use becomes disabled for any reason. The device also contains a recorder unit capable of provided instant playback to emergency dispatch personnel independently of whether the unit is recording. The device does not require an external computer to operate. | 03-18-2010 |
20100105316 | MULTIPLE-INPUT MULTIPLE-OUTPUT RELAY SYSTEM AND METHOD - A Multiple-Input Multiple-Output (MIMO) relay system is provided. The MIMO relay system performs signal processing to provide requested real data to at least one selected user mobile station sequentially connected to a first relay station located in a first cell and a second relay station located in a second cell using spare frequency capacity allocated to a first base station of the first cell instead of a second base station of the second cell that drops the requested real data due to its frequency capacity being exceeded, thereby improving reliability of seamless real data input/output in relay communication, reducing call drop probability, and raising availability of frequency capacity by automatically adjusting frequency capacity allocated between cells. | 04-29-2010 |
20100291866 | Multi-Beam Communication Satellite Antenna with Failure Compensation - A radio frequency radiation module includes a beam forming network capable of applying a signal including contributions to several beams, to several channels. Each channel has a high power amplifier without redundant units, and an antenna radiating feed connected to the output of the amplifier. The beam forming network has a device for selective compensation for failure of one of the channels, increasing the power of the contribution of at least one of the signals to a beam for which the radiation is affected by the failure. | 11-18-2010 |
20110159803 | COMMUNICATION SYSTEM, COMMUNICATION APPARATUS, CONTROL METHOD OF COMMUNICATION APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUM - This invention provides a communication system, a communication apparatus, a control method of the communication apparatus, and a computer-readable storage medium, which enable to increase the reliability of relay transmission and suppress redundant transmission. | 06-30-2011 |
20120156985 | Data Transmission Method and Apparatus for a Wireless Distribution System - The present invention discloses a data transmission method and an apparatus for a wireless distribution system. The method comprises: receiving data by a wireless access point or a wireless repeater of the wireless distribution system (S | 06-21-2012 |
20130095748 | System and Method for Modulation and Coding Scheme Adaptation and Power Control in a Relay Network - A method for determining a Modulation and Coding Scheme (MCS) and power control includes determining an error rate of a communication channel between the UA and at least one of the base station and the RN. When the error rate is below a first threshold, the method includes at least one of increasing the MCS, and reducing a transmission power of the UA. When the error rate is above a second threshold, the method includes at least one of decreasing the MCS, and increasing a transmission power of the UA. | 04-18-2013 |
20140065949 | PASSIVE BYPASS FOR NETWORK EXTENDING - In one or more embodiments, a cellular signal is received and directed to a path bypassing active amplifier circuitry. This may be in response to the active amplifier circuitry being non-operational (e.g., in a fault state) or detecting that an RF environment does not necessitate amplification. Bypassing the active amplifier circuitry may enable transmission of a non-amplified cellular signal when active circuitry is in a fault state or while traveling through areas of strong cellular service (e.g., proximate a cell tower). | 03-06-2014 |