Patent application number | Description | Published |
20090083604 | Ldpc encoders, decoders, systems and methods - An LDPC encoder with a complexity that increases linearly as a function of block size is provided. They arc implementable with simple logic consisting of a repeater with an irregular repeat pattern, an interleaver, and an accumulator that performs irregular accumulations. | 03-26-2009 |
20090103480 | HYBRID ARQ SCHEMES WITH SOFT COMBINING IN VARIABLE RATE PACKET DATA APPLICATIONS - A system and method for transmitting high speed data on fixed rate and for variable rate channels. The system and method provides the flexibility of adjusting the data rate, the coding rate, and the nature of individual retransmissions. Further, the system and method supports partial soft combining of retransmitted data with previously transmitted data, supports parity bit selection for successive retransmissions, and supports various combinations of data rate variations, coding rate variations, and partial data transmissions. | 04-23-2009 |
20100067476 | MULTI-HOP WIRELESS BACKHAUL NETWORK AND METHOD - Some embodiments of the invention provide an implementation for a multi-hop wireless backhaul network. These embodiments can advantageously be deployed in dense urban areas and/or co-located with wireless access nodes, such as base-stations of a cellular wireless communication system. Preferably wireless links between constituent network nodes are set-up hierarchically. A basic result of this is that peer-to-peer (child-to-child) communication is generally prohibited and circuits are forced to conform to a topology. The multi-hop wireless backhaul network may be used to carry delay sensitive, high-density last mile circuit traffic over Non-Line-Of-Sight (NLOS) broadband radio links. Moreover, some embodiments of the invention provide a method of path-healing for re-routing of circuit traffic from circuits that have experienced catastrophic failures. | 03-18-2010 |
20100074105 | MULTI-HOP WIRELESS BACKHAUL NETWORK AND METHOD - Some embodiments of the invention provide an implementation for a multi-hop wireless backhaul network. These embodiments can advantageously be deployed in dense urban areas and/or co-located with wireless access nodes, such as base-stations of a cellular wireless communication system. Preferably wireless links between constituent network nodes are set-up hierarchically. A basic result of this is that peer-to-peer (child-to-child) communication is generally prohibited and circuits are forced to conform to a topology. The multi-hop wireless backhaul network may be used to carry delay sensitive, high-density last mile circuit traffic over Non-Line-Of-Sight (NLOS) broadband radio links. Moreover, some embodiments of the invention provide a method of path-healing for re-routing of circuit traffic from circuits that have experienced catastrophic failures. | 03-25-2010 |
20100110955 | SIGNALLING CHANNEL AND RADIO SYSTEM FOR POWER SAVING IN WIRELESS DEVICES - Wireless devices, transmitters, systems and methods are provided that have a narrow band signalling channel and a wide band channel, for example an OFDM channel. In order to save power, the wireless device is nominally powered down with the exception of a receiver specific to the narrow band signalling channel. Once instructed to do so over the narrow band signalling channel, the wireless device wakes up the rest of its wide band receive circuitry. | 05-06-2010 |
20110116360 | OFDM SYSTEM AND METHOD EMPLOYING OFDM SYMBOLS WITH KNOWN OR INFORMATION-CONTAINING PREFIXES - Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert received OFDM symbols from a linear convolution with the channel to a cyclic convolution. | 05-19-2011 |
20110216786 | OFDM SYSTEM AND METHOD EMPLOYING OFDM SYMBOLS WITH KNOWN OR INFORMATION-CONTAINING PREFIXES - Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert received OFDM symbols from a linear convolution with the channel to a cyclic convolution. | 09-08-2011 |
20120287861 | Hybrid ARQ Schemes with Soft Combining in Variable Rate Packet Data Applications - A system and method for transmitting high speed data on fixed rate and for variable rate channels. The system and method provides the flexibility of adjusting the data rate, the coding rate, and the nature of individual retransmissions. Further, the system and method supports partial soft combining of retransmitted data with previously transmitted data, supports parity bit selection for successive retransmissions, and supports various combinations of data rate variations, coding rate variations, and partial data transmissions. | 11-15-2012 |
20130010777 | MULTI-HOP WIRELESS BACKHAUL NETWORK AND METHOD - Some embodiments of the invention provide an implementation for a multi-hop wireless backhaul network. These embodiments can advantageously be deployed in dense urban areas and/or co-located with wireless access nodes, such as base-stations of a cellular wireless communication system. Preferably wireless links between constituent network nodes are set-up hierarchically. A basic result of this is that peer-to-peer (child-to-child) communication is generally prohibited and circuits are forced to conform to a topology. The multi-hop wireless backhaul network may be used to carry delay sensitive, high-density last mile circuit traffic over Non-Line-Of-Sight (NLOS) broadband radio links. Moreover, some embodiments of the invention provide a method of path-healing for re-routing of circuit traffic from circuits that have experienced catastrophic failures. | 01-10-2013 |
20130064076 | MULTI-HOP WIRELESS BACKHAUL NETWORK AND METHOD - Some embodiments of the invention provide an implementation for a multi-hop wireless backhaul network. These embodiments can advantageously be deployed in dense urban areas and/or co-located with wireless access nodes, such as base-stations of a cellular wireless communication system. Preferably wireless links between constituent network nodes are set-up hierarchically. A basic result of this is that peer-to-peer (child-to-child) communication is generally prohibited and circuits are forced to conform to a topology. The multi-hop wireless backhaul network may be used to carry delay sensitive, high-density last mile circuit traffic over Non-Line-Of-Sight (NLOS) broadband radio links. Moreover, some embodiments of the invention provide a method of path-healing for re-routing of circuit traffic from circuits that have experienced catastrophic failures. | 03-14-2013 |
20130223563 | OFDM System and Method Employing OFDM Symbols with Known or Information-Containing Prefixes - Systems and methods for transmitting and receiving OFDM symbols are provided which enable the otherwise wasted transmission time normally used as a prefix for each OFDM symbol to contain useful information. At the receiver, the received signal is processed to convert received OFDM symbols from a linear convolution with the channel to a cyclic convolution. | 08-29-2013 |
20130329644 | Hybrid ARQ Schemes with Soft Combining in Variable Rate Packet Data Applications - A system and method for transmitting high speed data on fixed rate and for variable rate channels. The system and method provides the flexibility of adjusting the data rate, the coding rate, and the nature of individual retransmissions. Further, the system and method supports partial soft combining of retransmitted data with previously transmitted data, supports parity bit selection for successive retransmissions, and supports various combinations of data rate variations, coding rate variations, and partial data transmissions. | 12-12-2013 |
Patent application number | Description | Published |
20080253279 | Pilot Design for Ofdm Systems with Four Transmit Antennas - Pilot, preamble and midamble patterns are provided that are particularly suited for four transmit antenna OFDM systems. Pilots are inserted in a scattered manner for each of the four antennas, either uncoded, space-time coded in pairs, space-time frequency coded in pairs, or space-time-frequency coded. | 10-16-2008 |
20090161608 | BROADCAST SYSTEM INTERFERENCE PROTECTION METHOD AND APPARATUS - A method and transceiver in a secondary system for utilizing channel bandwidths allocated to a primary system. A secondary system transceiver receives a primary system signal, re-transmits a delayed version of the primary system signal, and communicates with secondary system equipment utilizing secondary system signals within at least part of a bandwidth of at least one channel of the primary system. The re-transmission of the primary system signal allows the use of primary system channels by the secondary system without adversely affecting the primary or secondary system users. | 06-25-2009 |
20130287138 | Pilot Design for OFDM Systems with Four Transmit Antennas - Pilot, preamble and midamble patterns are provided that are particularly suited for four transmit antenna OFDM systems. Pilots are inserted in a scattered manner for each of the four antennas, either uncoded, space-time coded in pairs, space-time frequency coded in pairs, or space-time-frequency coded. | 10-31-2013 |
Patent application number | Description | Published |
20080217952 | Device for manipulating a tarpaulin - A device for manipulating a tarpaulin so as to selectively cover and uncover a top aperture of a container the device being usable in combination with an actuator providing a rotational motion, the device comprising: a rod for rolling the tarpaulin therearound and for unrolling the tarpaulin therefrom; a rod rotating component having a substantially elongated configuration, the rod rotating component defining a component longitudinal axis, the rod rotating component being linkable to the actuator so as to be rotatable therewith about the rod longitudinal axis, the rod rotating component being operatively coupled to the rod in a manner such that rotating the rod rotating component about the component longitudinal axis rotates the rod about the rod longitudinal axis, the rod rotating component being pivotable relatively to the actuator and configurable between a component shortest configuration and a component longest configuration. | 09-11-2008 |
20080290686 | Device for manipulating a tarpaulin - A device for manipulating a tarpaulin so as to selectively cover and uncover a top aperture of a container. The top aperture defines an aperture peripheral edge, the aperture peripheral edge including two substantially opposed substantially longitudinal segments. The tarpaulin is configurable between an extended configuration and a retracted configuration. In the extended configuration, the tarpaulin substantially covers the top aperture. In the retracted configuration, the tarpaulin is substantially retracted from the top aperture. The device includes an elongated guiding component defining a guiding component longitudinal axis. The guiding component is securable to the container so as to extend at least partially along at least one of the longitudinal segments. A tarpaulin mounting component is usable for attaching the tarpaulin thereto. A link, mechanically coupled to the guiding component, is longitudinally movable therealong between a link proximal position and a link distal position. The tarpaulin mounting component is operatively coupled to the link in a manner such that when the link is in the link proximal position, and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the retracted configuration. When the link is in the link distal position and the tarpaulin is attached to the tarpaulin mounting component, the tarpaulin is in the extended configuration. | 11-27-2008 |
20100230994 | Device for manipulating a tarpaulin - A device for manipulating a tarpaulin to selectively cover and uncover a top aperture of a container, the device being usable in combination with an actuator, the device comprising: a rod for rolling the tarpaulin therearound, the rod defining a rod longitudinal axis; a mounting bracket attachable to the container in a spaced apart relationship relatively to the top aperture; an articulated linking element defining a linking element first end and a substantially opposed linking element second end, the articulated linking element being pivotally attached to the mounting bracket substantially adjacent to the linking element first end, the articulated linking element being rotatably attached to the rod substantially adjacent to the linking element second end, the articulated linking element being movable between a first configuration and a second configuration, the articulated linking element being in the first configuration when the tarpaulin is in a retracted configuration, and the articulated linking element being in the second configuration when the tarpaulin is in an extended configuration; and a transmission operatively coupled to the actuator and to the rod for rotating the rod about the rod longitudinal axis when the actuator is actuated. | 09-16-2010 |
20110254310 | Device for manipulating a tarpaulin - A device for manipulating a tarpaulin across a top aperture of a container, the tarpaulin defining a tarpaulin first end section and a substantially opposed tarpaulin second end section, the container defining a bottom wall and a peripheral wall extending substantially upwardly from the bottom wall, the peripheral wall delimiting the top aperture substantially opposed to the bottom wall, the container defining substantially opposed container first and second ends, the tarpaulin first end section being secured to the container substantially adjacent to the container first end. The device includes: at least two arms defining respective substantially opposed arm bottom and top sections, the arm bottom sections being each pivotally coupled to the container through a respective pivot, the pivots being provided at substantially spaced apart locations along the container between the container first and second ends substantially adjacent to the bottom wall, each of the arms being pivotable about the respective pivot between respective arm first and second positions, the arm top section of each of the arms being closer to the container first end in the arm first positions than in the arm second positions; at least two tarpaulin mounting elements each extending from a respective one of the arms substantially adjacent the arm top sections for securing the tarpaulin thereto; at least two biasing element each operatively coupled to a respective one of the arms for biasing independently from each other each of the arms toward the arm first positions; and an actuator for selectively moving the arms between the arm first and second positions. | 10-20-2011 |