Abstract: The invention relates to a method for estimating frequency bias negatively affecting a digital signal representative of a symbol frame, wherein said method comprises the steps of: generating the digital signal at a sampling period Te that is shorter than a predefined period of each of the symbols of the frame; calculating values for a plurality of pairs of samples of the digital signal, each value being representative of a phase difference between the samples of a pair; estimating the frequency bias negatively affecting the digital signal on the basis of the values calculated for Np pairs of samples selected such that a plurality of said Np pairs belong strictly to a single symbol in the frame. The present invention also relates to a module for implementing the estimation method, as well as to a telecommunication method and system.

Abstract: The present invention relates to a wireless communication system, and more specifically, to a method and a device for reporting channel state information. According to one embodiment of the present invention, a method for allowing a terminal to report channel state information (CSI) in a wireless communication system comprises the steps of: reporting a rank indicator (RI); dropping a report of a precoding matrix indicator (PMI) after the RI has been reported; and reporting a channel quality indicator (CQI) after the PMI report has been dropped. Here, a rank value corresponding to the RI may be a changed rank value compared to a rank value corresponding to the most recently reported RI before the RI report. Furthermore, the CQI can be determined on the basis of another precoding matrix, rather than a precoding matrix corresponding to the dropped PMI.

Abstract: Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over time-varying dispersive diversity wireless channels. For example, various embodiments may utilize an architecture comprised of a bank of estimation units, a normalizing gain estimator, a DSP unit and a feedback shift register providing the equalizer feedback state vector. The estimation unit may be further comprised of a multiplicity of adaptive algorithms providing various filtered estimates of the data symbol to the DSP unit or providing the joint estimate of the transmitted data symbol.

Abstract: An equalization processing apparatus includes a correlation matrix generating unit. The correlation matrix generating unit calculates a correlation value between a plurality of paths of a received signal coming from the paths based on a correlation pattern selected from a plurality of correlation patterns indicating combinations of the numbers of correlation chips as arbitrary chips to be used for calculation of the correlation value among all the chips of the received signal and identification numbers of the correlation chips so as to generate a correlation matrix that is applied to equalization processing on the received signal.

Abstract: A transmitter device arranged to encode a set of digital input data into a succession of modulated chirps, whereby said digital input data are encoded according to a Gray code into codewords (320, 321, 322) having a plurality of bits, and having an interleaver that distributes the bits (C00, . . . Cnn) of each codeword into a series of digital modulation values (S0, . . . S7), at different bit positions, and to synthesize a series of modulated chirps whose cyclical shifts are determined by the modulation values. A special frame structure is defined in order to ensure high robustness, and variable bit-rate flexibility.

Abstract: An input segment of an input video is encoded by first extracting and storing, for each segment of previously encoded videos, a set of reference features. The set of input features are matched with each set of the reference features to produce a set of scores. The reference segments having largest scores are selected to produce a first reduced set of reference segments. A rate-distortion cost for each reference segment in the first reduced set of reference segments is estimated. The reference segments in the first reduced set of reference segments is selected to produce a second reduced set of reference segments. Then, the input segment are encoded based on second reduced set of reference segments.

Abstract: Examples of apparatuses and methods for performing a joint RD optimization operation are described herein. A method may include successively encoding a macroblock using a plurality of coding modes. The method may further include determining a corresponding rate-distortion cost to encode the macroblock based on a corresponding coding mode of the plurality of coding modes. The method may further include determining a corresponding estimated rate-distortion cost to encode one or more macroblocks affected by encoding the macroblock using the corresponding coding mode. The method may further include selecting a coding mode of the plurality of coding modes having a lowest corresponding joint rate-distortion cost. The corresponding total rate-distortion cost comprises the corresponding rate-distortion cost to encode the macroblock and the corresponding estimated rate-distortion cost to encode the one or more of the affected macroblocks.

Abstract: Aspects of virtual field buffer based decoding are described. In one embodiment, a current picture field is read from a coded picture buffer comprising coded pictures of video, for example. The current picture may be associated with a top or bottom field polarity. According to decoding and picture output orders, the current picture field is assigned to an available field entry of a virtual field buffer, and an available frame index of a virtual frame map is assigned to the current picture field. The assignment of the available frame index to the current picture field is indicated to a decoder that decodes the current picture field with reference to the assigned frame index. According to aspects of the embodiments described herein, rather than determining complimentary picture fields after decoding, the assignment of complimentary picture fields to virtual frame indexes before decoding provides certain efficiencies.

Abstract: In a scalable video codec, an adaptive Wiener filter with offset aims to minimize the differences between two input pictures or picture regions, and the filter coefficients need to be transmitted to decoder site.

Abstract: An image decoding device is provided which reconstructs an intra prediction mode of a current prediction unit using a prediction mode group indicator and a prediction mode index, determines a size of a sub block when intra prediction is performed on each sub block of the current prediction unit, and creates reference pixels and a prediction block per sub block. Therefore, by causing the first group to include modes having a high possibility of being equal to the prediction mode of the current block and determining the intra prediction mode group indicator and the prediction mode index, it is possible to reduce an amount of information of the intra prediction mode to be encoded. Also, by creating a prediction block very similar to the current block, the number of bits to be encoded and to be decoded are reduced.

Abstract: Provided are video encoding and decoding methods and apparatuses. The video encoding method includes: encoding a video based on data units having a hierarchical structure; determining a context model used for entropy encoding a syntax element of a data unit based on at least one piece of additional information of the data units; and entropy encoding the syntax element by using the determined context model.

Abstract: Disclosed herein are a method and apparatus for filtering a reference pixel. A method of smoothing a reference pixel may include determining whether or not to perform smoothing on a reference pixel based on the size of a transform block and information about an intra-prediction mode for the transform block and determining a smoothing method by comparing the size of the transform block with the size of a maximum transform block. Accordingly, image coding efficiency can be increased, and picture quality can be improved.

Abstract: Provided are a method and apparatus for encoding and decoding images based on constrained offset compensation and a loop filter. The image decoding apparatus: receives, from an encoder, a first indicator indicating whether a sequence, a picture, a frame, a slice, a coding unit (CU), a prediction unit (PU), and/or a transform unit (TU) supports constrained offset compensation; receives, from the encoder, a second indicator indicating whether constrained sample adaptive offset (SAO) compensation or an adaptive loop filter (ALF) is applied; receives a parameter from the encoder; and applies the SAO compensation or the ALF to pixels of a restored image on the basis of the second indicator and the parameter.

Abstract: Provided is a moving picture encoding apparatus and a moving picture decoding apparatus which make it possible to increase decoding efficiency. A spatially scalable-multiview moving picture encoding apparatus includes: a base layer encoder which encodes a base layer; an enhancement layer encoder which performs spatially scalable encoding on an enhancement layer, using a reconstructed image of the base layer generated by the base layer encoder; an enhancement view base layer encoder which performs multiview encoding on the base layer of the enhancement view, using a reconstructed image of the base layer generated by the base layer encoder; and an enhancement view enhancement layer encoder which performs multiview encoding on the enhancement layer of the enhancement view, using a reconstructed image of the enhancement layer generated by the enhancement layer encoder.

Abstract: An image decoding device is provided which includes an intra prediction module for reconstructing an intra prediction mode and creating a prediction block of a current block or a sub block, an inverse scanning module for converting residual signals into a quantization block, an inverse quantization module for inversely quantizing the quantization block, and an inverse transform module for inversely-transforming the inversely-quantized block. A quantization parameter predictor for deriving the quantization parameter is created using quantization parameters of a left coding unit and a top coding unit of a current coding unit. Therefore, it is possible to improve image quality by adaptively adjusting a quantization parameter of a current block depending on the size of a coding unit and enhance compression efficiency of an image by effectively encoding/decoding the quantization parameter to reduce the number of bits required for transmitting the quantization parameter.

Abstract: Medium having decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information to be decoded; dequantizing quantized DCT coefficients to obtain DCT coefficients; performing inverse DCT conversion on the DCT coefficients to obtain an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and a previously decoded reference image; and adding the prediction image to the error image; wherein the motion compensation is performed with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels actually exist in the reference image, the bilinear interpolation being performable using a positive or negative rounding method; wherein bilinear interpolation is performed using a rounding method specified by rounding method information; and wherein the r

Abstract: Medium having image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information; dequantizing quantized DCT coefficients to DCT coefficients; performing inverse DCT conversion on the DCT coefficients to an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and a previously decoded reference image; and adding the prediction and error images to obtain a decoded image; wherein motion compensation is performed with half-pixel accuracy using bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels exist in the reference image, the interpolation being performable using a positive or negative rounding method, and using a rounding method specified by rounding method information included in coded information of the currently decoded image, in a header section of th

Abstract: In general, techniques are described for reducing the complexity of mode selection when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may compute approximate costs for a pre-defined set of intra-prediction modes identified in a current set. The current set of intra-prediction modes may include fewer modes than a total number of intra-prediction modes. The processor may compare approximate costs computed for one or more most probable intra-prediction modes to a threshold and replace one or more of the intra-prediction modes of the current set with one or more most probable intra-prediction modes. The processor may perform rate distortion analysis with respect to each intra-prediction mode identified in the current set and perform intra-prediction coding with respect to the current block using a mode of the current set.

Abstract: A reconstructed block creating method is provided which includes decoding an intra prediction mode using an intra prediction mode group indicator and a prediction mode index, constructing a prediction block, inversely quantizing a received residual signal using a quantization parameter and adaptively inversely transforming the residual signal using the intra prediction mode to create a residual block, and adding the prediction block and the residual block to create a reconstructed block. The quantization parameter is reconstructed using a minimum quantization CU size, and the minimum quantization CU size is determined by a parameter transmitted from a picture parameter set. Therefore, it is possible to improve image quality by adaptively adjusting a quantization parameter of a current block depending on the size of a coding unit and enhance compression efficiency of an image by effectively encoding/decoding the quantization parameter.

Abstract: A method for encoding an intra prediction mode according to the present invention selects an intra prediction mode for a current block, determines the number of valid MPM candidates by checking the validity of MPM candidates of the current block, and if the number of valid MPM candidates is less than a previously set number, adds additional intra prediction modes as MPM candidates. MPM candidates can be adaptively added on the basis of the directionality of valid MPM candidates. Additionally, during the encoding of residual intra prediction modes, residual intra prediction modes are realigned on the basis of the directionality of valid MPM candidates. Accordingly, the present invention minimizes the information for encoding the intra prediction mode of the current block by adding MPM candidates or realigning the residual intra prediction modes on the basis of the directionality of valid MPM candidates.

Abstract: A method for encoding an intra prediction mode according to the present invention selects an intra prediction mode for a current block, determines the number of valid MPM candidates by checking the validity of MPM candidates of the current block, and if the number of valid MPM candidates is less than a previously set number, adds additional intra prediction modes as MPM candidates. MPM candidates can be adaptively added on the basis of the directionality of valid MPM candidates. Additionally, during the encoding of residual intra prediction modes, residual intra prediction modes are realigned on the basis of the directionality of valid MPM candidates. Accordingly, the present invention allows the information for encoding the intra prediction mode of the current block to be minimized by adding MPM candidates or realigning the residual intra prediction modes on the basis of the directionality of valid MPM candidates.

Abstract: Various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a first picture having a first resolution on a first layer is encoded without inter-layer prediction; a second picture having a second resolution on a second layer is encoded without inter-layer prediction; a third picture having the second resolution on the second layer is encoded without inter-layer prediction and without temporally referencing to pictures prior to the second picture. Further, a corresponding indication is encoded. In some embodiments one or more indications are received to determine if a switching point, referring to a picture coded using inter-layer prediction, from the first layer to the second layer exists, and if so, pictures in the first layer prior to the switching point; pictures associated with the switching point; and pictures in the second layer after the switching point may be decoded.

Abstract: Systems, apparatus and methods are described including determining a prediction residual for a channel of video data; and determining, using the first channel's prediction residual, a prediction residual for a second channel of the video data. Further, a prediction residual for a third channel of the video data may be determined using the second channel's prediction residual.

Abstract: A filter intensity calculated in accordance with the image quality deterioration degree between an original image and locally decoded image is corrected in accordance with pattern information of the locally decoded image, and deblocking filter processing is performed by using the corrected filter intensity. The deblocking filter processing is performed by using a filter intensity which is calculated in accordance with the image quality deterioration degree between the original image and locally decoded image and the flatness of the original image or locally decoded image, and which increases as the image quality deterioration degree and flatness of an image increase.

Abstract: In general, techniques are described for reducing the space required to store rate distortion values when selecting from multiple, different prediction modes. A video coding device comprising a processor may perform the techniques. The processor may determine first and second sets of intra-prediction modes for a current block of video data. The first and second sets of intra-prediction modes may include less intra-prediction modes, collectively, than a total number of intra-prediction modes. The processor may compute an approximate cost for each intra-prediction mode included in the first and second sets of intra-prediction modes. The processor may store the approximate cost for each intra-prediction mode identified in the first and second sets of intra-prediction modes to a memory. The processor may perform intra-prediction to encode the current block using a mode identified in at least one of the first or second set.

Abstract: A method for estimating video quality on bit-stream level, wherein the video quality refers to a video after error concealment and the method is performed on bit-stream level before said error concealment, comprises extracting and/or calculating a plurality of global condition features from a video bit-stream, extracting and/or calculating a plurality of local effectiveness features at least for a lost MB, calculating a numeric error concealment effectiveness level for each (or at least for each lost) MB by emulating an error concealment method that is used in said error concealment, and providing the calculated error concealment effectiveness level as an estimated visible artifacts level of video quality.

Abstract: Medium with image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information; dequantizing quantized DCT coefficients to obtain DCT coefficients; performing inverse DCT conversion on DCT coefficients to obtain an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and previously decoded reference image; and adding prediction and error images to obtain a decoded image; performing motion compensation with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels exist in the reference image, the interpolation being performable using a positive or negative rounding method; wherein the interpolation uses a rounding method specified by rounding method information included in coded information of the currently decoded image; and where

Abstract: Medium with image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information; dequantizing quantized DCT coefficients to obtain DCT coefficients; performing inverse DCT conversion to obtain an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and a previously decoded reference image; and adding the prediction and error images to obtain a decoded image; wherein motion compensation is performed with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels exist in the reference image, the interpolation using a positive or negative rounding method, and performed using rounding specified by rounding method information included in coded information of the currently decoded image; wherein the rounding method specifies one of two va

Abstract: Medium with image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information; dequantizing quantized DCT coefficients to DCT coefficients; performing inverse DCT conversion to an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and a previously decoded reference image; and adding prediction and error images to obtain a decoded image; wherein motion compensation is performed with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels exist in the reference image, the interpolation using a positive or negative rounding method, using rounding specified by rounding method information included in coded information of the currently decoded image; wherein the rounding method specifies one of two values specifying a positive or ne

Abstract: A sequence of encoded data associated with a block of video is assessed to determine if: quantized coefficients of transformed residual pixel data associated with the block are equal to zero, the block was encoded using a temporal compression process, a slice that includes the block is configured to be encoded using only one reference picture list or two reference picture lists, the block is unpartitioned or was encoded in direct mode, a reference picture used to encode the block is the reference picture associated with a lowest index value on the one reference picture list, and an actual motion vector associated with the block is equal to a predicted motion vector associated with the block.

Abstract: A motion estimation device that reduces computational complexity while maintaining high prediction performance includes: block search means searching for a reference block that most approximates a prediction target block within a search range in a past direction frame F (?) or in a future direction frame F (+); search center setting means setting a search center in F (?) and F (+); and search range setting means setting a search range around the search center in F (?) and F (+), wherein the search range setting means sets a relatively large or small search range when F (0) is a P frame and switches assignment of large and small search ranges sequentially between two neighboring prediction target blocks, and the search center setting means sets a position identified by a motion vector predictor as a search center for a frame to which the relatively small search range is assigned.

Abstract: In a first inter-image prediction mode in which information on a motion vector is used, a first mode detection unit constructs a first candidate list from a plurality of reference block candidates based on a first predetermined order, assigns indices for designating reference block candidates added in the first candidate list, and outputs the indices of the plurality of reference candidate blocks. In a second inter-image prediction mode in which is used a motion vector difference between a motion vector predictor based on information on a motion vector, and a motion vector of a coding target block, a second mode detection unit constructs a second candidate list from a plurality of reference block candidates based on a second predetermined order, assigns indices for designating reference block candidates added in the second candidate list, and outputs the indices of the plurality of reference block candidates and motion vector differences.

Abstract: A method and apparatus for deriving a motion vector predictor (MVP) candidate set for a block are disclosed. Embodiments according to the present invention generate a complete full MVP candidate set based on the redundancy-removed MVP candidate set if one or more redundant MVP candidates exist. In one embodiment, the method generates the complete full MVP candidate set by adding replacement MVP candidates to the redundancy-removed MVP candidate set and a value corresponding to a non-redundant MVP is assigned to each replacement MVP candidate. In another embodiment, the method generates the complete full MVP candidate set by adding replacement MVP candidates to the redundancy-removed MVP candidate set and a value is as signed to each replacement MVP candidate according to a rule. The procedure of assigning value, checking redundancy, removing redundant MVP candidate are repeated until the MVP candidate set is complete and full.

Abstract: Medium having image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information from input information; dequantizing quantized DCT coefficients to DCT coefficients; performing inverse DCT conversion on the DCT coefficients to an error image; synthesizing a prediction image of a currently decoded image by performing motion compensation using motion vector information, rounding method information, and a previously decoded reference image; and adding the prediction and error images to obtain a decoded image; wherein motion compensation is performed with half-pixel accuracy using bilinear interpolation to calculate intensity values of chrominance or luminance at points where no pixels exist in the reference image, the interpolation performable using a positive or negative rounding method, specified by rounding method information specifying one of plural values and included in coded information of the currently decoded image, in a header section of

Abstract: Medium having image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information; dequantizing quantized DCT coefficients to DCT coefficients; performing inverse DCT conversion on the DCT coefficients to an error image; synthesizing a prediction image of a currently decoded image via motion compensation using motion vector information, rounding method information, and a previously-decoded reference image; and adding the prediction and error images to a decoded image; wherein motion compensation is performed with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance where no pixels exist in the reference image, using a positive or negative rounding method; wherein interpolation is performed using a rounding method specified by the rounding method information included in a header section of coded information of the current image; wherein the rounding method specifies one of two values specify

Abstract: Medium having image decoding program effecting: extracting motion vector information, quantized DCT coefficients, and rounding method information; dequantizing quantized DCT coefficients to DCT coefficients; performing inverse DCT conversion on the DCT coefficients to an error image; synthesizing a prediction image of a currently decoded image via motion compensation using motion vector information, rounding method information, and a previously-decoded reference image; and adding the prediction and error images to a decoded image; wherein motion compensation is performed with half-pixel accuracy and uses bilinear interpolation to calculate intensity values of chrominance or luminance where no pixels exist in the reference image, using a positive or negative rounding method; wherein interpolation is performed using a rounding method specified by one-bit rounding method information included in a header section of coded information of the current image; wherein the rounding method specifies one of two values spe

Abstract: Access encoding/decoding of image data has at least two preferred access modes, raster access and macroblock access. Arriving rasters containing pixels from an image sensor are converted to encoded macroblocks to support later random macroblock and raster access. Encoded macroblocks can be randomly accessed (read from or written to memory) by block-based video compression algorithms, such as H.264. Encoded macroblocks can also be decoded raster by raster for raster-oriented display devices. Access encoding/decoding may be implemented in a microprocessor, graphics processor, digital signal processor, FPGA, ASIC, or SoC. Access encoding/decoding of image data or reference frames can reduce memory and storage bottlenecks, processor access time, and processor and memory power consumption. A user interface can allow users to control the tradeoff between decoded video quality and battery life for a mobile device. This abstract does not limit the scope of the invention as described in the claims.

Abstract: A method and system for separating even and odd lines in a progressive video signal comprises generating from the even lines simulated odd lines, comparing the simulated odd lines with the original odd lines to obtain a support signal, and transmitting the even lines and the support signal in order to reconstitute the full picture. Alternatively, separating odd and even lines may be replaced by separating high- and low-frequency vertical signal components, generating from the low-frequency vertical signal components simulated high-frequency vertical signal components, comparing the simulated high-frequency vertical signal components with the original high-frequency signal components to obtain a support signal.

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a base layer, an enhancement layer, or both. The processor is operationally coupled to the memory unit and is configured to provide a first indicator configured to enable or disable inter-layer syntax prediction and to provide a second indicator configured to enable or disable inter-layer texture prediction. The first and second indicators can be provided separately from each other. In one embodiment, the processor is further configured to disable inter-layer syntax prediction based at least in part upon information indicative of a codec associated with the base layer.

Abstract: In video quality control and estimation, the joint evaluation of compression artifacts and channel artifacts is a problem. The invention considers the joint perception of both a compression artifact level Dm(V) and a channel artifact level Dh(V) in a method for calculating overall distortion in a video being affected by compression artifacts and channel artifacts. The method comprises a step of adding a compression artifact level Dm(V) and a summand S that is derived from log (Dh(V)) multiplied with a factor that decreases with increasing compression artifact level Dm, such as D(V)=Dm(V)+c·(K?Dm(V))·log(Dh(V)). The result obtained is a measure for the overall distortion.

Abstract: An apparatus and method are provided for compensating a block tutor in an image frame. This may include a video codec decoder for decoding an inputted image frame, and outputting a decoded image frame. An error concealment block may detect an error-generated block in the decoded image frame and compensate the detected error block through a median filter, and output the compensated image frame.

Abstract: A method and system for multidimensional video processing comprises preprocessing a video signal in at least two of horizontal, vertical and temporal dimensions of the video signal to reduce an amount of information of the video signal to obtain an information-reduced signal and filtered components that are separated from the video signal; and using the information-reduced signal to generate simulated filtered components, and generating support signals based on a difference between the filtered components and the simulated filtered components.

Abstract: Methods and systems for bidimensional video processing comprise preprocessing the video signal in horizontal and vertical dimensions of the video signal to reduce an amount of information of the video signal by low pass filtering the video signal and removing pixels to obtain an information-reduced video signal; expanding the information-reduced video signal by an expander process to produce an upconverted video signal; and comparing the upconverted video signal to the original video input to generate a support signal based on a difference between the original video signal and the upconverted video signal. Further embodiments include at least one of storing and transmitting the information-reduced video signal and the support signal; and during post-processing, processing and combining the information-reduced video signal and the support signal to generate a full information duplicate of the video signal.

Abstract: Methods and apparatus for the selection and/or configuration of scrambling operations to accommodate e.g., both scrambling and non-scrambling connections (such as to e.g., legacy type devices). In one embodiment, media interface devices (such as e.g., HDMI (High-Definition Multimedia Interface)) devices may provide enhanced scrambling capabilities; solutions disclosed herein provide, among other things, support for both enhanced scrambling capable devices and legacy devices, and enable a device to determine the scrambling capabilities of a connected device.

Abstract: A method, system, and devices are provided that create a network over existing power lines. Two or more modules can establish the network for two or more devices in communication with each other. The modules include components that register device(s) and determine the processing of the data signal being sent over the power line network.

Abstract: A receiver for processing frequency division multiplexing (FDM) signals, the receiver includes a processor configured to: convert the FDM signals from at least two transmitters into frequency domain signals; determine a first component of the frequency domain signals, the first component of the frequency domain signals comprising a channel noise and a composite residual inter-carrier interference (ICI) contributed by the at least two transmitters; calculate a set of correlation values corresponding to the first component of the frequency domain signals; and process the first component of the frequency domain signals based on the set of correlation values.

Abstract: A modulator generates modulation signals from input signals. A combiner arranges subcarrier modulation signals based on the modulation signals in order thereby to generate a compound matrix. The shifter shifts elements of each row of the compound matrix to generate shift matrix. An IFFT calculator subjects the shift matrix to inverse fast Fourier transformation to generate inverse transformation matrix. A maximum detector detects a column with a highest peak-to-average power ratio among columns of the inverse transformation matrix. A minimum detector detects an inverse transformation matrix including a column with a lowest peak-to-average power ratio among columns of inverse transformation matrices detected by the maximum detector. A transmitter generates a transmission signal based on baseband signals generated from each column of the inverse transformation matrix detected by the minimum detector, and transmits the transmission signal.

Abstract: A method for execution on an apparatus configured to operate in a telecommunications network comprising a processor, wherein said processor is configured to execute said method, said method comprising encoding a plurality of uplink feedback information elements for carrier aggregation, by a set of codewords where each codeword comprises a channel, wherein at least two information elements have the same channel distribution.

Abstract: A method, system and device are provided to enable one or more users to receive mixed-rank data from two transmitters by using an indexed list of linearly independent, predetermined vectors Vref={vref1, . . . , vrefM} and channel knowledge H1, H2 from first and second transmitters to compute equivalent channel matrix information Hieq based on the assigned or determined rank of the receiver. With this information, each transmitter selects Li receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network so that a receiver can receive transmitted signals from both transmitters.

Abstract: A Fast Fourier Transform (FFT) context-based reconfigurable instruction set processor (CRISP) machine receives N data symbols. The FFT CRISP includes multiply-accumulate (MAC) blocks, each configured to generate two intermediate results of a butterfly algorithm by calculating complex products and sums using the received data symbols and twiddle factors. The FFT CRISP includes a memory configured to store the received data symbols, the twiddle factors, and the intermediate results of the butterfly algorithm. The FFT CRISP includes a configurable instruction set digital signal processor core configured to: select and read a pair of the received data symbols from a location in the memory; input each selected pair of the received data symbols to the MAC blocks; write, to the location, the intermediate results the MAC blocks generated using the selected at least one pair of the N received data symbols; and output N binary symbols.