Patent application number | Description | Published |
20080274745 | INTERFERENCE MITIGATION TECHNIQUE - A backhaul network for a mobile wireless network including a plurality of nodes forming links, the links utilizing a 1:n frequency re-use scheme in backhaul communication, where n equals 2 to about 16, wherein each link communicates over a different portion of an entire bandwidth of the network. | 11-06-2008 |
20090010238 | METHOD FOR CHANNEL ESTIMATION IN A POINT-TO-POINT COMMUNICATION NETWORK. - A method of using pilot signals in a wireless communication network including encoding pilot signals, and transmitting the encoded pilot signals over an in-band backhaul link between two nodes in the network. Preferably, the pilot signals are encoded with a CDMA codeword associated with a link. The pilot signals can be decoded to permit estimation of a channel and interference attributable to each link. | 01-08-2009 |
20090143017 | METHOD AND DEVICE FOR WIRELESS COMMUNICATION USING MIMO TECHNIQUES - The present invention describes a method of closed loop MIMO communication utilizing implicit or explicit channel state information (CSI) at the transmitter and the receiver. The transmitter performs linear pre-processing (for example, QR decomposition or bi-diagonal decomposition or Jacobi rotations, and/or sporadic SVDs) on a channel matrix, and the receiver mitigates the mutual interference between the streams by performing MMSE processing on the received signals. The MMSE matrix is computed with respect to the processed channel that may estimated by the receiver through preprocessed pilot signals. The transmitters preprocessing is of much lesser cost and complexity than full SVD. | 06-04-2009 |
20090323621 | WIRELESS BACKHAUL - A method and system for providing wireless backhaul in a wireless radio access network having an overall allocated access bandwidth for access communication, the system including a radio access base station designed for out-of-band backhaul, the base station including an access transceiver communicating over an allocated frequency channel within the overall allocated access bandwidth, and an in-band backhaul unit coupled to the access base station including means for in-band communication of backhaul of the access base station. | 12-31-2009 |
20100029295 | GPS SYNCHRONIZATION METHOD FOR WIRELESS CELLULAR NETWORKS - A method and system for synchronization in a femtocell wireless telecommunications network, the method including transmitting a preamble and pilot tones from a Base Transceiver Station (a “sync-BTS”) having a module for GPS synchronization and performing, in the femtocells, preamble synchronization with the sync-BTS for initial acquisition; and decoding the pilot tones to identify and correct timing and frequency offset in the femtocells for synchronization tracking. | 02-04-2010 |
20100087206 | GPS SYNCHRONIZATION METHOD FOR MOBILE WIRELESS NETWORKS - A method and system for GPS (Geographical Positioning System) synchronization of a femtocell, as defined in the application, in a wireless telecommunications network, the system including a Base Transceiver Station (a “sync-BTS”) for transmitting synchronization signals, a module for GPS synchronization coupled to the sync-BTS, at least one femtocell, and a processor in each femtocell for performing time and frequency synchronization on the sync-BTS over an air interface. | 04-08-2010 |
20100128630 | ACCESS POINT PLANNING MECHANISM - A method for inserting an access point unit into a wireless telecommunications network, comprising: performing a self installation process in the access point unit, wherein during said self installation process, the access point unit automatically detects physical and RF layer parameters of access points around it, and selects its own physical and RF layer parameters according thereto, and/or performing a self-interconnection process in the access point unit wherein the access point unit contacts at least one feeder; and said feeder determines whether or not to permit connection of said access point unit to it. | 05-27-2010 |
20100157970 | MULTIPLE ANTENNA WIRELESS TELECOMMUNICATION METHOD AND SYSTEM - A wireless telecommunication system and method including at least two transmit antennae and means for implementing a downlink switched sub-channels diversity scheme during transmission. The method includes splitting a total bandwidth allocated for transmission of a transmitted signal to individual sub-channels or groups of sub-channels; boosting each of the sub-channels or groups of sub-channels; and routing each of the sub-channels or groups of sub-channels to a different transmit antenna. | 06-24-2010 |
20110019696 | MMSE METHOD AND SYSTEM - A method for reducing complexity of MMSE computations in a receiver, by which an MMSE matrix is computed once per pre-defined group of sub-carriers and then the sub-carrier MMSE matrix for other sub-carriers in that group is computed by phase shifts per column combined with phase shifts per row of the computed MMSE matrix, which corresponds to the column/row phase shifts of the respective channel. | 01-27-2011 |
20110216857 | RECEIVER FOR A WIRELESS TELECOMMUNICATION SYSTEM WITH A CHANNEL DEINTERLEAVER - A receiver for wireless broadband telecommunication transmissions, the receiver including a demodulator for receiving transmitted modulated symbols, a channel deinterleaver memory coupled to the demodulator for receiving interleaved soft symbols and outputting deinterleaved soft symbols, an LLR calculator coupled to the channel deinterleaver memory for receiving the deinterleaved soft symbols and calculating LLRs therefore, a descrambler coupled to the LLR calculator for descrambling the LLRs, and an interleaved scrambling sequence generator coupled to the descrambler for generating an interleaved scrambling sequence and providing it to the descrambler. | 09-08-2011 |
20110231725 | METHOD AND SYSTEM FOR HARQ COMBINING IN A TELECOMMUNICATION SYSTEM - A receiver and method for HARQ combining of a received codeword in a receiver with a FEC decoder, the method including computing Log Likelihood Ratios (LLRs) of demodulated soft symbols of the received codeword and outputting the LLRs as a-priori soft bits; performing iterative decoding of the a-priori soft bits in a Forward Error Correction (FEC) decoder; outputting a posteriori soft bits of the a priori soft bits of the received codeword from the FEC decoder; and HARQ combining the a posteriori soft bits with a retransmission of the received codeword. | 09-22-2011 |
20110255627 | METHOD AND APPARATUS FOR CREST FACTOR REDUCTION IN TELECOMMUNICATIONS SYSTEMS - A method and device for reducing Peak-to-Average Power Ratio (PAPR) of a transmitted signal in a wireless telecommunication system utilizing CFR technique, the method including performing peak-windowed clipping of a transmitted signal using at least two cascaded clipping stages and individually configuring parameters for each clipping stage before performing the peak-windowed clipping. | 10-20-2011 |
20120011295 | METHOD AND APPARATUS FOR WIRELESS BROADBAND SYSTEMS DIRECT DATA TRANSFER - Apparatus and method for direct data transfer in a wireless broadband system having an operating system, the apparatus including a central processing unit (CPU), at least one dedicated Direct Memory Access unit (DMA) local to the CPU, coupled directly to the CPU, and a commands FIFO (First In First Out) receiving commands from the CPU and automatically transferring the commands in sequence to the DMA for implementation by the DMA, in the absence of intervention by the operating system. | 01-12-2012 |
20120014478 | ADVANCED LLR PROCESSOR FOR WIRELESS TELECOMMUNICATION SYSTEM - A method and system for processing LLRs, in a receiver, of transmissions over a wireless telecommunication system, the method including receiving multiple soft symbols, selecting a set of appropriate instructions for LLR calculation for the soft symbols, arranging the soft symbols in a register of a processor according to the selected instructions, selecting an appropriate single instruction from the set of instructions to be implemented by the processor using the soft symbols in the register as operands, and calculating, by a computation unit, multiple LLR values for the multiple soft symbols, in parallel, by means of the selected instruction. | 01-19-2012 |
20130185345 | ALGEBRAIC PROCESSOR - An algebraic processor as part of a wireless telecommunication system, including pre-computed Look Up Tables (LUT), used for computing a number of different functions using linear interpolation. Preferably, the step of computing is implemented in a multiplier-accumulator having a SIMD structure. | 07-18-2013 |