公开(公告)号：US09762355B2

公开(公告)日：2017-09-12

申请号：US14809098

申请日：2015-07-24

Applicant: QUALCOMM Incorporated

Inventor： Venkatesh Krishnan ,  Vivek Rajendran ,  Sandip Sarkar ,  Subasingha Shaminda Subasingha ,  Venkatraman S. Atti

IPC: H03M13/00 ,  H04L1/08 ,  H04L1/00 ,  H04L1/18

CPC classification number: H04L1/08 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/008 ,  H04L1/1812 ,  H04L1/1835

Abstract: A device includes a receiver, a buffer, a transmitter, and an analyzer. The receiver is configured to receive a plurality of packets that corresponds to at least a subset of a sequence of packets. Error correction data of a first packet of the plurality of packets includes a partial copy of a second packet of the plurality of packets. The analyzer is configured to determine whether a particular packet of the sequence is missing from the buffer, and to determine whether a partial copy of the particular packet is stored in the buffer. The analyzer is also configured to send, via the transmitter, a retransmit message to a second device based at least in part on determining that the buffer does not store the particular packet and that the buffer does not store the partial copy of the particular packet.

公开(公告)号：US09762265B2

公开(公告)日：2017-09-12

申请号：US14802373

申请日：2015-07-17

Applicant: exactEarth Ltd.

Inventor： Baljinder S. Randhawa ,  Arunas G. Maciknuas ,  Margaret J. Browning ,  Philip L. Miller ,  Christopher M. Short

IPC: H03M13/00 ,  G01S5/00 ,  H04L1/00 ,  H04L12/46 ,  H03M13/29 ,  G01S19/16 ,  H03M13/11 ,  H03M13/15 ,  G01S5/02

CPC classification number: H03M13/63 ,  G01S5/0027 ,  G01S5/0226 ,  G01S19/16 ,  H03M13/1102 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/2933 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0078 ,  H04L1/0083 ,  H04L12/4633

Abstract: Methods and systems for enhancing the detectability of electronic tracking messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.

公开(公告)号：US20170257187A1

公开(公告)日：2017-09-07

申请号：US15599873

申请日：2017-05-19

Applicant: LG ELECTRONICS INC.

Inventor： Yonghak SUH ,  Sangchul MOON ,  Jongwoong SHIN ,  Woosuk KO ,  Sungryong HONG

IPC: H04L1/00

CPC classification number: H04L27/2649 ,  H03M13/1102 ,  H03M13/2792 ,  H04L1/0009 ,  H04L1/0023 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/0071 ,  H04L5/0007 ,  H04L27/12

Abstract: A method for transmitting broadcast signals, the method includes encoding service data; parity interleaving parity bits of the encoded service data; group-wise interleaving bit groups included in the parity interleaved service data according to a permutation order; block interleaving the group-wise interleaved bit groups with a set including a number of bit groups, wherein the number of bit groups included in the set corresponds to a modulation order, wherein the block interleaving includes row-wise writing bits of the group-wise interleaved bit groups in the set; and column-wise reading 1 bit from each row of the set; building at least one signal frame including the block interleaved service data; modulating data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme; and transmitting the broadcast signals having the modulated data.

公开(公告)号：US09749089B2

公开(公告)日：2017-08-29

申请号：US14931959

申请日：2015-11-04

Applicant: Mitsubishi Electric Research Laboratories, Inc.

Inventor： David Millar ,  Toshiaki Koike-Akino ,  Keisuke Kojima ,  Kieran Parsons

IPC: H03M13/00 ,  H04L1/00

CPC classification number: H04L1/0045 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0061 ,  H04L25/067 ,  H04L27/38

Abstract: A method receives the symbol transmitted over a channel, selects, from a constellation of codewords, a first codeword neighboring the received symbol and a set of second codewords neighboring the first codeword, and determines a relative likelihood of each second codeword being the transmitted symbol with respect to a likelihood of the first codeword being the transmitted symbol. Next, the method determines an approximation of a log-likelihood ratio (LLR) of each data bit in the received symbol as a log of a ratio of a sum of the relative likelihoods of at least some of the second codewords having the same value of the data bit to a sum of the relative likelihoods of at least some of the second codewords having different value of the data bit and decodes the received symbol using the LLR of each data bit.

公开(公告)号：US20170244518A1

公开(公告)日：2017-08-24

申请号：US15051495

申请日：2016-02-23

Applicant: Dell Products L.P.

Inventor： Ankit Singh ,  Rohit Kumar Arehalli

IPC: H04L1/00 ,  G06F11/10

CPC classification number: H04L1/0061 ,  G06F11/1004 ,  H04L1/0045 ,  H04L1/0053

Abstract: Methods and systems for intelligent network checksum processing are disclosed. A method for intelligent network checksum processing may include receiving a data unit at a receiver network element sent from a sender network element, determining a success count of the sender network element, determining whether to perform a checksum validation at the receiver network element, wherein the determining may include skipping the checksum validation if the success count of the sender network element is greater than the predefined threshold success count, and performing the checksum validation if the success count of the sender network element is not greater than a predefined threshold success count, incrementing the success count of the sender network element if the checksum validation is performed and the checksum validation is successful, and resetting the success count of the sender network element if the checksum validation is performed and the checksum validation is unsuccessful.

公开(公告)号：US09742517B2

公开(公告)日：2017-08-22

申请号：US14715861

申请日：2015-05-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Se-ho Myung ,  Belkacem Mouhouche ,  Daniel Ansorregui Lobete ,  Kyung-joong Kim ,  Hong-sil Jeong

IPC: H04J13/00 ,  H04J13/12 ,  H04J13/10 ,  H03M13/00 ,  H04L1/00

CPC classification number: H04J13/0003 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/253 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2778 ,  H03M13/6552 ,  H04J13/102 ,  H04J13/12 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0058 ,  H04L1/0065 ,  H04L1/0071

Abstract: A transmitting apparatus is disclosed. The transmitting apparatus includes an encoder to perform channel encoding with respect to bits and generate a codeword, an interleaver to interleave the codeword, and a modulator to map the interleaved codeword onto a non-uniform constellation according to a modulation scheme, and the constellation may include constellation points defined based on various tables according to the modulation scheme.

公开(公告)号：US20170238288A1

公开(公告)日：2017-08-17

申请号：US15582354

申请日：2017-04-28

Applicant: INTEL CORPORATION

Inventor： Xiaogang Chen ,  Yuan Zhu ,  Qinghua Li

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/12

CPC classification number: H04W72/042 ,  H04B7/0697 ,  H04B15/00 ,  H04L1/0025 ,  H04L1/0038 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/06 ,  H04L5/0037 ,  H04L5/14 ,  H04L27/34 ,  H04L27/362 ,  H04W4/70 ,  H04W8/02 ,  H04W24/00 ,  H04W24/08 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0251 ,  H04W52/0258 ,  H04W52/143 ,  H04W52/242 ,  H04W52/244 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1278 ,  H04W76/19 ,  H04W76/28 ,  H04W84/042 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

Abstract: Technology for an enhanced Node B (eNB) operable to map an enhanced physical downlink control channel (ePDCCH) to physical resource blocks in a radio frame is disclosed. The eNB can map modulated symbols in the ePDCCH to at least one control channel element (CCE). The eNB can map the at least one CCE to resource elements located in a plurality of physical resource blocks that are distributed in a subframe. The eNB can apply the mapping to control data for scheduling to form an ePDCCH. The eNB can process the ePDCCH for communication to a user equipment (UE).

公开(公告)号：US20170230162A1

公开(公告)日：2017-08-10

申请号：US15443383

申请日：2017-02-27

Applicant: LG Electronics Inc.

Inventor： Byounggill KIM ,  Woochan Kim ,  Jaehyung Kim ,  Sungryong Hong ,  Chulkyu Mun ,  Jinyong Choi ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Woosuk Ko

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/06

CPC classification number: H04L5/0053 ,  H04B7/0413 ,  H04H20/59 ,  H04H20/72 ,  H04J13/0062 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0026 ,  H04L27/2611 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2647 ,  H04L65/4076 ,  H04L65/80

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The method for transmitting broadcast signals comprises encoding DP (data pipe) data carrying at least one service, mapping the encoded DP data onto constellations, time interleaving the mapped DP data, building at least one signal frame including the time interleaved DP data, modulating data in the built at least one signal frame by an OFDM scheme and transmitting the broadcast signals having the modulated data, wherein the at least one signal frame includes emergency alert information.

公开(公告)号：US09730196B2

公开(公告)日：2017-08-08

申请号：US14510814

申请日：2014-10-09

Applicant: Cable Television Laboratories, Inc.

Inventor： Belal Hamzeh ,  Jennifer Andreoli-Fang

IPC: H04W72/04 ,  H03M13/35 ,  H04L1/00 ,  H04J3/06 ,  H04J3/16 ,  H04L5/00 ,  H04W72/08 ,  H04W84/12

CPC classification number: H04L1/007 ,  H03M13/353 ,  H04J3/0647 ,  H04J3/1694 ,  H04L1/0009 ,  H04L1/0011 ,  H04L1/0041 ,  H04L1/0045 ,  H04L5/0092 ,  H04L27/0006 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/082 ,  H04W76/10 ,  H04W84/12

Abstract: Systems and methods presented herein provide for an LTE wireless communication system operating in an RF band with a conflicting wireless system. The LTE system includes a first eNodeB operable to transmit downlink communications to UEs in the RF band and to receive uplink communications from the UEs in the RF band. The first eNodeB is also operable to transmit an LTE control channel across a portion of the RF band, to time divide the LTE control channel into a plurality of subchannels, and to occupy a first of the subchannels. A second eNodeB is operable to detect the LTE control channel and to occupy a second of the subchannels proximate in time to the first subchannel of the first eNodeB.

公开(公告)号：US09729375B2

公开(公告)日：2017-08-08

申请号：US15439235

申请日：2017-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Choi ,  Woosuk Ko ,  Sangchul Moon ,  Sungryong Hong

IPC: H04L27/06 ,  H04L27/26 ,  H04B7/0456 ,  H04B7/08 ,  H04B7/10 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04L27/2627 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0682 ,  H04B7/08 ,  H04B7/10 ,  H04H20/33 ,  H04L1/0045 ,  H04L5/0007 ,  H04L27/2602 ,  H04L27/2647 ,  H04L27/2649

Abstract: A method and an apparatus for receiving broadcast signals thereof are disclosed. The method for receiving broadcast signals, the method comprises receiving the broadcast signals, demodulating the received broadcast signals by an OFDM (Orthogonal Frequency Division Multiplex) scheme, parsing a signal frame from the demodulated broadcast signals, MIMO (Multiple-Input and Multiple-Output) decoding service data in the parsed signal frame, decoding signaling data in the parsed signal frame and decoding the MIMO decoded service data.