Redline Communications, Inc. Patent applications |
Patent application number | Title | Published |
20150358186 | SYSTEM AND METHOD FOR MULTI-THREADED OFDM CHANNEL EQUALIZER WITH COPROCESSOR - A system for an orthogonal frequency division multiplexed (OFDM) equalizer, said system comprising a program memory, a program sequencer and a processing unit connected to each other, wherein the processing unit comprises an input selection unit, an arithmetic logic unit (ALU), a coprocessor and an output selection unit; further wherein the program sequencer schedules the processing of one or more symbol-carrier pairs input to said OFDM equalizer using multiple threads; retrieves, for each of the one or more symbol-carrier pairs, multiple program instructions from said program memory; generates multiple expanded instructions corresponding to said retrieved multiple program instructions; and further wherein said ALU performs said processing of the one or more symbol-carrier pairs using the multiple threads across multiple pipeline stages, wherein said processing comprises said ALU executing arithmetic operations to process said expanded instructions using said multiple threads across the multiple pipeline stages. | 12-10-2015 |
20140099985 | SMART ANTENNA FOR INTERFERENCE REJECTION - A smart antenna system is provided for communicating wireless signals between a mobile device and a plurality of different fixed base stations using one or more channels and one or more beams. The smart antenna system includes a control subsystem, a radio transceiver and an antenna subsystem coupled to each other and adapted to perform scanning of one or more combinations of base stations, channels and beams using one or more test links established with one or more of the fixed base stations where the test links use at least some of the channels and the beams. A first combination of base station, channel and beam is selected based on the scanning; and a first operating link is established for transmitting a wireless signal to the selected base station using the selected channel and beam. | 04-10-2014 |
20140099983 | Smart Antenna With Multiple Round Selection - A smart antenna system for communicating wireless signals between a mobile device and a plurality of fixed base stations using different channels and beams. The system comprises a control subsystem, a radio transceiver and an antenna subsystem, providing a plurality of beams. Each beam has a main lobe, one or more nulls, and one or more lateral and back lobes with at least some attenuation, so as to reduce interference. The system performs scanning of different combinations of base stations, channels and beams using one or more test links established with one or more of the fixed base stations. The test links use at least some of the different channels and the different beams, select a first combination of base station, channel and beam based on the scanning, and establish a first operating link for transmitting a wireless signal to the selected base station using the selected channel and beam. | 04-10-2014 |
20140099947 | Smart Antenna For Interference Rejection With Enhanced Tracking - A smart antenna system is provided for communicating wireless signals between a mobile device and a plurality of different fixed base stations using one or more channels and one or more beams. The smart antenna system includes a control subsystem, a radio transceiver and an antenna subsystem coupled to each other and adapted to perform scanning of one or more combinations of base stations, channels and beams using one or more test links established with one or more of the fixed base stations where the test links use at least some of the channels and the beams. A first combination of base station, channel and beam is selected based on the scanning; and a first operating link is established for transmitting a wireless signal to the selected base station using the selected channel and beam. | 04-10-2014 |
20140099946 | SMART ANTENNA FOR INTERFERENCE REJECTION WITH ENHANCED TRACKING - A smart antenna system is provided for communicating wireless signals between a mobile device and a plurality of different fixed base stations using one or more channels and one or more beams. The smart antenna system includes a control subsystem, a radio transceiver and an antenna subsystem coupled to each other and adapted to perform scanning of one or more combinations of base stations, channels and beams using one or more test links established with one or more of the fixed base stations where the test links use at least some of the channels and the beams. A first combination of base station, channel and beam is selected based on the scanning; and a first operating link is established for transmitting a wireless signal to the selected base station using the selected channel and beam. | 04-10-2014 |
20140065996 | SYSTEM AND METHOD FOR PAYLOAD ENCLOSURE - A cylindrical-shaped enclosure having tapered ends. The enclosure includes a module having a radio disposed on a printed circuit board and an antenna connected to the PCB. The enclosure has a main piece coupled to a lower piece and to a top piece, an optionally a fourth piece coupled to the top piece. A mounting subsystem is mounted to the main piece and includes a hole configured to receive therethrough a wires that connect to the printed circuit board. The antenna is configured to rotate about an axis that extends along a longest dimension of the enclosure. The module includes a metal plate to which the antenna is directly mechanically and electrically coupled without any cable such that the wires lack any control signals for controlling the antenna. The top and/or lower pieces can house any combination of a a camera, an environmental sensor, security equipment, or a lighting system. | 03-06-2014 |
20140062830 | SYSTEM AND METHOD FOR PAYLOAD ENCLOSURE - A cylindrical-shaped enclosure having tapered ends. The enclosure includes a module having a radio disposed on a printed circuit board and an antenna connected to the PCB. The enclosure has a main piece coupled to a lower piece and to a top piece, an optionally a fourth piece coupled to the top piece. A mounting subsystem is mounted to the main piece and includes a hole configured to receive therethrough a wires that connect to the printed circuit board. The antenna is configured to rotate about an axis that extends along a longest dimension of the enclosure. The module includes a metal plate to which the antenna is directly mechanically and electrically coupled without any cable such that the wires lack any control signals for controlling the antenna. The top and/or lower pieces can house any combination of a a camera, an environmental sensor, security equipment, or a lighting system. | 03-06-2014 |
20140044151 | SYSTEM AND METHOD FOR INTERFERENCE TRIGGERED FREQUENCY HOPPING - Systems and methods of interference-triggered frequency hopping in a wireless communication system. A master is provided in the wireless communication system in wireless communication with slave nodes each configured to use different preselected communication frequencies to permit frequency hopping. A current channel is selected from among multiple channels in the wireless communication system in which the master and at least some of the slave nodes send and receive wireless communications. Each of the channels uses different ones of the preselected communication frequencies. In the current channel, interference with communications between the master and a selected one of the slave nodes that use the current channel is detected. A new channel is selected only in response to detecting the interference. The system switches from the current channel to the new channel such that communications between the master and the selected slave node use the new channel. | 02-13-2014 |
20140044150 | SYSTEM AND METHOD FOR INTERFERENCE TRIGGERED FREQUENCY HOPPING - Systems and methods of interference-triggered frequency hopping in a wireless communication system. A master is provided in the wireless communication system in wireless communication with slave nodes each configured to use different preselected communication frequencies to permit frequency hopping. A current channel is selected from among multiple channels in the wireless communication system in which the master and at least some of the slave nodes send and receive wireless communications. Each of the channels uses different ones of the preselected communication frequencies. In the current channel, interference with communications between the master and a selected one of the slave nodes that use the current channel is detected. A new channel is selected only in response to detecting the interference. The system switches from the current channel to the new channel such that communications between the master and the selected slave node use the new channel. | 02-13-2014 |
20140022965 | SINGLE CHANNEL FULL DUPLEX WIRELESS COMMUNICATION - A single channel full duplex wireless communication system includes a processor, a transmitter, a receiver, a secondary transmission path, a combining element, a primary transmission feedback path and a secondary transmission feedback path. The transmitter transmits a transmission signal via a transmission path. The receiver receives a received signal via a reception path. The transmitter and the receiver utilize one channel to transmit and receive signals. The transmission signal causes self-interference. The processor estimates a first transfer function and feeds the secondary transmission path with the transmission signal adjusted by the first transfer function to reduce the transmission signal leaked to the reception path. The combining element combines the transmission signal with the adjusted secondary transmission path signal to remove the self-interference. The primary transmission feedback path output is modified by a second transfer function. The secondary transmission feedback path output is modified by a third transfer function. | 01-23-2014 |
20130343398 | PACKET-BASED COMMUNICATION SYSTEM WITH TRAFFIC PRIORITIZATION - A method is provided for handling packets at a queuing point in a packet-based communication system that handles the packets, when each of the packets is assigned one of a plurality of service priorities. At least one discard threshold is assigned to each of the service priorities, and when one of the packets is delivered to the queuing point, a count of the total number of packets or bytes stored in a queue at the queuing point is maintained. That count is compared with a selected discard threshold associated with the service priority assigned to the packet delivered to the queuing point, and that packet is selectively discarded if the count reaches the selected discard threshold. Packets having different service priorities may be stored in the queue. | 12-26-2013 |
20130155913 | SINGLE CHANNEL FULL DUPLEX WIRELESS COMMUNICATION - A single channel full duplex wireless communication system includes a processor, a transmitter, a receiver, a secondary transmission path, a combining element, a primary transmission feedback path and a secondary transmission feedback path. The transmitter transmits a transmission signal via a transmission path. The receiver receives a received signal via a reception path. The transmitter and the receiver utilize one channel to transmit and receive signals. The transmission signal causes self-interference. The processor estimates a first transfer function and feeds the secondary transmission path with the transmission signal adjusted by the first transfer function to reduce the transmission signal leaked to the reception path. The combining element combines the transmission signal with the adjusted secondary transmission path signal to remove the self-interference. The primary transmission feedback path output is modified by a second transfer function. The secondary transmission feedback path output is modified by a third transfer function. | 06-20-2013 |
20120188919 | ISOLATION MEASUREMENT AND SELF OSCILLATION PREVENTION IN TDD-OFDM REPEATER FOR WIRELESS BROADBAND DISTRIBUTION TO SHADOWED AREAS - A method for determining isolation status of the RF repeater is provided. A modem in the repeater registers with a base transceiver station (BTS). Uplink output levels of a donor RF transceiver are calibrated and stored in the modem. The modem is synchronized to a BTS transmission received at the donor RF transceiver and the synchronization information is provided to a server RF transceiver of the repeater. Isolation detection and measurement can then be performed between donor transmit antenna and receive server antenna of the RF repeater and the automatic gain control parameter of donor RF transceiver and server RF transceiver are adjusted based upon the isolation detection and measurement value. The isolation and detection can be implemented in a co-processor coupled to the donor and server transceivers. | 07-26-2012 |
20120014483 | LOW COMPLEXITY OPTIMAL SOFT MIMO RECEIVER - A low-complexity optimal soft MIMO detector is provided for a general spatial multiplexing (SM) systems with two transmit and N | 01-19-2012 |
20090285147 | ISOLATION MEASUREMENT AND SELF-OSCILLATION PREVENTION IN TDD-OFDM REPEATER FOR WIRELESS BROADBAND DISTRIBUTION TO SHADOWED AREAS - A method for determining isolation status of the RF repeater is provided. A modem in the repeater registers with a base transceiver station (BTS). Uplink output levels of a donor RF transceiver are calibrated and stored in the modem. The modem is synchronized to a BTS transmission received at the donor RF transceiver and the synchronization information is provided to a server RF transceiver of the repeater. Isolation detection and measurement can then be performed between donor transmit antenna and receive server antenna of the RF repeater and the automatic gain control parameter of donor RF transceiver and server RF transceiver are adjusted based upon the isolation detection and measurement value. The isolation and detection can be implemented in a co-processor coupled to the donor and server transceivers. | 11-19-2009 |
20090232241 | LOW COMPLEXITY OPTIMAL SOFT MIMO RECEIVER - A low-complexity optimal soft MIMO detector is provided for a general spatial multiplexing (SM) systems with two transmit and NR receive antennas. The computational complexity of the proposed scheme is independent from the operating signal-to-noise ratio (SNR) and grows linearly with the constellation order. It provides the optimal maximum likelihood (ML) solution through the introduction of an efficient Log-likelihood ratio (LLR) calculation method, avoiding the exhaustive search over all possible nodes. The intrinsic parallelism makes it an appropriate option for implementation on DSPs, FPGAs, or ASICs. In specific, this MIMO detection architecture is very suitable to be applied in WiMax receivers based on IEEE 802.16e/m in both downlink (subscriber station) and uplink (base station). | 09-17-2009 |