公开(公告)号：US20190236802A1

公开(公告)日：2019-08-01

申请号：US16298740

申请日：2019-03-11

Applicant: Muhammad Ahsan Naim ,  John P. Fonseka

Inventor： Muhammad Ahsan Naim ,  John P. Fonseka

IPC: G06T7/73

CPC classification number: G06T7/74 ,  G06T2207/30242 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0046 ,  H04L5/0092 ,  H04L27/2602 ,  H04L27/3483 ,  H04L27/3488 ,  H04L29/06006 ,  H04L65/10 ,  H04L65/80 ,  H04L69/02 ,  H04N21/647 ,  H04W72/0446

Abstract: The present invention provides a methods, apparatus and systems for improving a systems-level data rate on a communications link such the orthogonal frequency division multiplexed multiple access (OFDMA) downlink used in used in WiFi and LTE cellular/wireless mobile data applications. The present invention preferably uses a form of multilevel coding and decoding known as tiled-building-block encoding/decoding. With the present invention, different receivers coupled to different parallel downlink channels with different channel qualities decode different received signal constellations at different levels of resolution. This allows the downlink of the OFDMA system to operate with a significantly higher data rate, thus eliminating existing inefficiencies in the downlink and significantly increasing system level bandwidth efficiency.

公开(公告)号：US20190230526A1

公开(公告)日：2019-07-25

申请号：US16312124

申请日：2017-06-22

Applicant: ORANGE

Inventor： Raphael Visoz ,  Abdulaziz Mohamad ,  Antoine Berthet

IPC: H04W24/02 ,  H04B7/15 ,  H04L5/16 ,  H04L1/00

CPC classification number: H04W24/02 ,  H04B7/15 ,  H04B7/15521 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0077 ,  H04L5/16 ,  H04L2001/0097

Abstract: A relaying method in a telecommunication system having a plurality of sources, a half-duplex relay relay and a recipient. The relay performs a receiving phase of: receiving codewords transmitted by the sources, including estimating for each source a message associated with the codewords transmitted by the source, error detection and decision of error-free decoded messages, which determine the set of sources decoded without error by the relay; a phase of coding and transmitting to the recipient a signal uniquely representative of the selection of messages, such that, after each reception of a block from different sources, the relay receives and decodes a return path from the destination indicating if no or at least one message is decoded without error, these messages determining the set of sources decoded without error. The relay switches from the receiving phase to the coding and transmission phase once a logic rule is valid.

公开(公告)号：US20190207712A1

公开(公告)日：2019-07-04

申请号：US16323577

申请日：2017-08-14

Applicant: Alcatel Lucent

Inventor： Yu Chen

IPC: H04L1/00

CPC classification number: H04L1/0058 ,  H03M13/13 ,  H03M13/2906 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0065 ,  H04L1/08

Abstract: The present disclosure provides optimized coding and decoding methods for polar codes and corresponding encoder and decoder. The coding method comprises: providing to-be-encoded input bits that include free bits and remaining bits; dividing the remaining bits into a plurality of fragments; providing a connection code; connecting one fragment of the remaining bits to the connection code to thereby form a connected fragment, while the remaining being still unconnected fragments; performing polarization coding to the free bits, the connected fragment, and the unconnected fragments to obtain the polar codes.

公开(公告)号：US20190207703A1

公开(公告)日：2019-07-04

申请号：US16298560

申请日：2019-03-11

Applicant: Texas Instruments Incorporated

Inventor： June Chul Roh ,  Pierre Bartand

IPC: H04L1/00 ,  H03M13/09 ,  H03M13/15 ,  H04L27/26 ,  H03M13/27 ,  H03M13/29 ,  H04L1/18 ,  H03M13/00

CPC classification number: H04L1/004 ,  H03M13/09 ,  H03M13/1515 ,  H03M13/27 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/2966 ,  H03M13/618 ,  H03M13/635 ,  H03M13/6516 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/0064 ,  H04L1/0066 ,  H04L1/0071 ,  H04L1/0075 ,  H04L1/1812 ,  H04L27/26 ,  H04W84/042

Abstract: A method for performing code block segmentation for wireless transmission using concatenated forward error correction encoding includes receiving a transport block of data for transmission having a transport block size, along with one or more parameters that define a target code rate. A number N of inner code blocks needed to transmit the transport block is determined. A number M-outer code blocks may be calculated based on the number of inner code blocks and on encoding parameters for the outer code blocks. The transport block may then be segmented and encoded according to the calculated encoding parameters.

公开(公告)号：US20190068323A1

公开(公告)日：2019-02-28

申请号：US16105917

申请日：2018-08-20

Applicant: Microsemi Storage Solutions, Inc.

Inventor： Steven Scott Gorshe

IPC: H04L1/00 ,  H04B10/66

CPC classification number: H04L1/0058 ,  H03M7/40 ,  H04B10/66 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0078 ,  H04L1/0625

Abstract: A system and method for block-code transcoding. An input signal is analyzed to determine if the input signal includes multiple control words, multiple data words and a single control word or only data words. If the input signal comprises multiple control words, the method includes, generating a control word location map and mapping the control codes and any data words to a block-code encoded transmission signal. If the input signal comprises a single control word and multiple data words, the method includes, generating a control word location address indicating a location of the single control word and mapping the control code and the multiple data words to a block-code encoded transmission signal. If the input signal comprises only data words, the method includes, mapping the data words sequentially into the block-code encoded transmission signal. Accordingly, the bandwidth efficiency of the transmission signal is improved by varying the encoding technique used dependent upon the contents of the input signal.

公开(公告)号：US20190058546A1

公开(公告)日：2019-02-21

申请号：US16169332

申请日：2018-10-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hong-sil JEONG ,  Kyung-Joong KIM ,  Se-ho MYUNG

IPC: H04L1/00 ,  H03M13/37 ,  H03M13/25 ,  H03M13/00 ,  H03M13/11 ,  H03M13/27 ,  H03M13/15 ,  H04L27/20

CPC classification number: H04L1/0041 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2707 ,  H03M13/2778 ,  H03M13/3761 ,  H03M13/3769 ,  H03M13/6356 ,  H03M13/6362 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0067 ,  H04L1/0071 ,  H04L27/20

Abstract: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate an LDPC codeword including the input bits and parity bits to be transmitted in a current frame; a parity permutator configured to perform by group-wise interleaving a plurality of bit groups configuring the parity bits based on a group-wise interleaving pattern comprising a first pattern and a second pattern; a puncturer configured to puncture some of the parity-permutated parity bits; and an additional parity generator configured to select at least some of the punctured parity bits to generate additional parity bits to be transmitted in a previous frame of the current frame, based on the first pattern and the second pattern.

公开(公告)号：US20180375601A1

公开(公告)日：2018-12-27

申请号：US15780018

申请日：2017-01-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Ik PARK ,  Sun-Hyoung KWON ,  Jae-Young LEE ,  Heung-Mook KIM ,  Nam-Ho HUR

IPC: H04H20/67 ,  H04H20/71 ,  H04L27/26 ,  H04L29/08 ,  H04L1/00

CPC classification number: H04H20/67 ,  H04H20/31 ,  H04H20/71 ,  H04H20/72 ,  H04H60/44 ,  H04H60/73 ,  H04J11/004 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L27/2605 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2627 ,  H04L69/323 ,  H04W52/322 ,  H04W52/346

Abstract: An apparatus for transmitting broadcasting signal using transmitter identification scaled by 4-bit injection level code and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter, the transmitter identification signal scaled by an injection level code; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.

公开(公告)号：US20180359129A1

公开(公告)日：2018-12-13

申请号：US16105791

申请日：2018-08-20

Applicant: Adaptive Networks, Inc.

Inventor： Michael B. Propp ,  Khaled Saab ,  David L. Propp

IPC: H04L27/34 ,  H04L27/36 ,  H04L1/00

CPC classification number: H04L27/3405 ,  H03M13/1505 ,  H03M13/251 ,  H04L1/0003 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/203 ,  H04L25/06 ,  H04L27/01 ,  H04L27/362 ,  H04L27/38

Abstract: A modulation system and method for enabling communications across a noisy media environment is configured to employ a dynamically reconfigurable QAM modulation scheme and adjust transmission characteristics in response to information received in order to modify performance of system components.

公开(公告)号：US20180359049A1

公开(公告)日：2018-12-13

申请号：US16108303

申请日：2018-08-22

Applicant: ANT-ADVANCED NETWORK TECHNOLOGIES OY

Inventor： Seppo NIKKILA ,  Tom LINDEMAN

IPC: H04L1/00 ,  H03M13/25 ,  H04S5/02 ,  H03M13/00 ,  G10L19/005 ,  G10L19/008

CPC classification number: H04L1/004 ,  G10L19/005 ,  G10L19/008 ,  H03M13/25 ,  H03M13/611 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/007 ,  H04S5/02 ,  H04S2400/01

Abstract: A method for forward error concealment encoding of a digital signal data stream including a sequence of individual digital samples, includes encoding one or more of the individual digital samples according to an encoding mode selected from a number of predetermined encoding modes in accordance with a value of the respective digital sample, wherein encoding includes determining an encoded digital sample as a combination of bits of the respective digital sample and a predetermined number of forward error concealment bits arranged into predetermined bit positions of the encoded digital sample in accordance with the selected encoding mode. A method for forward error concealment decoding of a digital signal data stream including a sequence of encoded individual digital samples is provided, and includes decoding one or more of the individual encoded samples into respective decoded digital samples according to a decoding mode selected from a number of predetermined decoding.

公开(公告)号：US20180337749A1

公开(公告)日：2018-11-22

申请号：US16034783

申请日：2018-07-13

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04L1/00 ,  H03M13/25 ,  H04L27/34 ,  H03M13/11 ,  H04L27/18 ,  H04B7/0413

CPC classification number: H04L1/0041 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/255 ,  H04B7/0413 ,  H04L1/0045 ,  H04L27/18 ,  H04L27/34

Abstract: In a transmission method according to one aspect of the present disclosure, a encoder performs error correction coding on an information bit string to generate a code word. A mapper modulates a first bit string in which the number of bits is the predetermined integral multiple of (X+Y) in the code word using a first scheme, the first scheme being a set of a modulation scheme in which an X-bit bit string is mapped to generate a first complex signal and a modulation scheme in which a Y-bit bit string is mapped to generate a second complex signal, and modulates a second bit string in which the first bit string is removed from the code word using a second scheme different from the first scheme.