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公开(公告)号：US20230344608A1
公开(公告)日：2023-10-26
申请号：US18214850
申请日：2023-06-27
Applicant: LG ELECTRONICS INC.
Inventor： Eunsung PARK , Jinyoung CHUN , Jinsoo CHOI , Dongguk LIM , Jinmin KIM
CPC classification number: H04L5/0092 , H04L1/0068 , H04L5/0094 , H04W84/12
Abstract: Proposed are a method and apparatus for receiving a PPDU in a wireless LAN system. Specifically, a reception STA receives a PPDU from a transmission STA through a broadband and decodes the PPDU. The PPDU includes a control field and a data field. When the broadband is a 320/160+160 MHz band including first to fourth 80 MHz sub-channels, the first 80 MHz sub-channel includes a first 996 RU, the second 80 MHz sub-channel includes a second 996 RU, the third 80 MHz sub-channel includes a third 996 RU, and the fourth 80 MHz sub-channel includes a first 484 RU. The data field is received through a first multiple RU in which the first to third 996 RUs and the first 484 RU are aggregated.
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公开(公告)号：US20230299793A1
公开(公告)日：2023-09-21
申请号：US18203149
申请日：2023-05-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Se-ho MYUNG , Kyung-Joong Kim , Hong-Sil Jeong
CPC classification number: H03M13/1165 , H03M13/2778 , H03M13/255 , H03M13/271 , H03M13/2906 , H03M13/6362 , H03M13/1148 , H03M13/611 , H04L1/0057 , H04L1/0068 , H04L1/0071 , H04L27/206 , H03M13/152
Abstract: A transmitter is provided. The transmitter includes: a Low Density Parity Check (LDPC) encoder configured to encode input bits to generate parity bits; a parity permutator configured to group-wise interleave a plurality of bit groups including the parity bits; and a puncturer configured to select some of the parity bits in the group-wise interleaved bit groups and puncture the selected parity bits, wherein the parity permutator group-wise interleaves the bit groups such that some of the bit groups at predetermined positions in the bit groups before the group-wise interleaving are positioned serially after the group-wise interleaving and a remainder of the bit groups before the group-wise interleaving are positioned without an order after the group-wise interleaving so that the puncturer selects parity bits included in the some of the bit groups sequentially and selects parity bits included in the remainder of the bit groups without an order.
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公开(公告)号：US20230276498A1
公开(公告)日：2023-08-31
申请号：US18195345
申请日：2023-05-09
Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventor： Stephen Grant , Reem Karaki , Peter Alriksson , Tai Do , Jung-Fu Cheng , Havish Koorapaty
IPC: H04W74/08 , H04L1/00 , H04L27/26 , H04W72/044 , H04W74/00
CPC classification number: H04W74/0816 , H04L1/0068 , H04L27/2607 , H04W72/044 , H04W74/002
Abstract: An example method is performed by a wireless device in a wireless communication network. The method comprises receiving, from a base station, a control message allocating resources in a bandwidth part for a downlink transmission, the bandwidth part including unlicensed spectrum and being divided into a plurality of bandwidth pieces corresponding to bandwidth units over which listen-before-talk (LBT) is performed. The radio resources used for the downlink transmissions exclude (e.g., by puncturing or rate-matching around) one or more guard bands of a bandwidth piece that is sensed as free for transmission.
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24.发明公开公开(公告)号：US20230239191A1
公开(公告)日：2023-07-27
申请号：US18010952
申请日：2021-06-30
Applicant: LG Electronics Inc.
Inventor： Eunsung PARK , Jinyoung CHUN , Jinsoo CHOI , Dongguk LIM
IPC: H04L27/26 , H04L1/00 , H04W72/0453
CPC classification number: H04L27/2621 , H04L1/0068 , H04W72/0453 , H04W84/12
Abstract: A method and an apparatus for receiving a PPDU in a wireless LAN system are proposed. Specifically, a receiving STA receives the PPDU from a transmitting STA through an 80 MHz band, and decodes the PPDU. The PPDU includes a preamble and a data field. The 80 MHz band includes first and second 484 tones RUs. The data field includes first data for the first 484 tone RU and second data for the second 484 tone RU. The second data is data obtained by duplicating the first data. The first and second 484 tone RUs are resource units including 484 tones.
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公开(公告)号：US11664928B2
公开(公告)日：2023-05-30
申请号：US17453926
申请日：2021-11-08
Applicant: Futurewei Technologies, Inc.
Inventor： Gleb Vyacheslavovich Kalachev , Ivan Leonidovich Mazurenko , Pavel Anatolyevich Panteleev , Elyar Eldarovich Gasanov , Aleksey Alexandrovich Letunovskiy , Wen Tong , Carmela Cozzo
CPC classification number: H04L1/0057 , H03M13/036 , H03M13/116 , H03M13/1165 , H03M13/616 , H03M13/618 , H03M13/6362 , H03M13/6516 , H04L1/005 , H04L1/0041 , H04L1/0063 , H04L1/0068
Abstract: A method for generating a code, a method for encoding and decoding data, and an encoder and a decoder performing the encoding and decoding are disclosed. In an embodiment, a method for lifting a child code from a base code for encoding and decoding data includes determining a single combination of a circulant size, a lifting function, and a labelled base matrix PCM according to an information length and a code rate using data stored in a lifting table. The lifting table was defined at a code generation stage. The method also includes calculating a plurality of shifts for the child code. Each shift is calculated by applying the lifting function to the labelled base matrix PCM with a defined index using the circulant size and using the derived child PCM to encode or decode data.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20190246386A1
公开(公告)日：2019-08-08
申请号：US16126896
申请日：2018-09-10
Applicant: Neocific, Inc.
Inventor： Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
IPC: H04W72/04 , H04B7/0413 , H04L1/00 , H04L27/26 , H04L5/00
CPC classification number: H04W72/0406 , H04B7/0413 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0029 , H04L1/0068 , H04L1/0073 , H04L5/0007 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L5/0091 , H04L27/2608 , H04W52/26 , H04W72/044
Abstract: An arrangement is disclosed where in a multi-carrier communication system, the modulation scheme, coding attributes, training pilots, and signal power may be adjusted to adapt to channel conditions in order to maximize the overall system capacity and spectral efficiency without wasting radio resources or compromising error probability performance, etc.
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公开(公告)号：US20190052511A1
公开(公告)日：2019-02-14
申请号：US16028651
申请日：2018-07-06
Applicant: NXP B.V.
Inventor： Yunus Can GULTEKIN , Frans WILLEMS , Wim VAN HOUTUM , Semih SERBETLI
CPC classification number: H04L27/366 , H03M13/256 , H03M13/27 , H03M13/6362 , H04L1/0042 , H04L1/0045 , H04L1/0059 , H04L1/0068 , H04L1/0071 , H04L27/2698 , H04L27/3405 , H04W4/44 , H04W52/0261 , H04W52/243
Abstract: An input selector for selecting an input of a convolution encoder of a transmitter is disclosed. The input selector comprises a shaper block and an input-select block. The shaper block is configured to receive an input comprising a first number of input bits, the shaper block configured to generate a shaped bit stream corresponding to the first number of input bits. The input-select block is configured to generate an encoder input bit stream for the encoder based on the shaped bit stream, wherein the input-select block generates the encoder input bit stream such that, when input into the encoder, a first bit of the encoder input bit stream sets a state of the encoder in order that a subsequent second bit of the encoder input bit stream causes the encoder to generate a bit of the shaped bit stream at a pre-determined position in an encoder output bit stream.
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公开(公告)号：US20180375615A1
公开(公告)日：2018-12-27
申请号：US16065077
申请日：2016-08-17
Applicant: QUALCOMM Incorporated
Inventor： Changlong XU , Jian LI , Jilei HOU , Neng WANG
CPC classification number: H04L1/0068 , H03M13/13 , H03M13/618 , H03M13/6362 , H04L1/0054 , H04L1/0057
Abstract: Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.
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公开(公告)号：US20180278389A1
公开(公告)日：2018-09-27
申请号：US15901238
申请日：2018-02-21
Applicant: LOUIS-PHILIPPE HAMELIN , YIQUN GE , WUXIAN SHI , RAN ZHANG , NAN CHENG
Inventor： LOUIS-PHILIPPE HAMELIN , YIQUN GE , WUXIAN SHI , RAN ZHANG , NAN CHENG
CPC classification number: H04L5/0046 , H03M13/033 , H03M13/13 , H04L1/0009 , H04L1/0041 , H04L1/0057 , H04L1/0068
Abstract: Coding sub-channel selection involves, in an embodiment, determining, from sub-channels that are defined by a code and that have associated reliabilities for input bits at input bit positions, a first number of the sub-channels to carry bits that are to be encoded. A second number of the sub-channels, greater than the first number, are selected. The second number of sub-channels are selected to provide exactly the first number sub-channels to be available to carry the bits that are to be encoded.
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公开(公告)号：US20180262379A1
公开(公告)日：2018-09-13
申请号：US15914137
申请日：2018-03-07
Inventor： Yoann ROTH , Vincent BERG , Jean-Baptiste DORE , Laurent ROS
CPC classification number: H04L27/2636 , H03M13/258 , H03M13/2957 , H03M13/2996 , H04L1/0041 , H04L1/005 , H04L1/006 , H04L1/0066 , H04L1/0068 , H04L1/0071 , H04L25/03171 , H04L25/4902 , H04L27/02 , H04L27/10 , H04L27/32
Abstract: A transceiving system using a joined modulation alphabet A having a size M the symbols of which are distributed on a plurality N of orthogonal dimensions, the symbols carried by a dimension belonging to a linear sub-alphabet An having a size P, with M=NP. The transmitter performs a turbocoding of a block of information bits, the code words provided by the turbocoder being mapped to symbols of the joined modulation alphabet before modulating the signal to be transmitted. The receiver performs turbodecoding from the projection of the symbols received on the orthogonal dimensions of the alphabet.
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