公开(公告)号：US12081240B2

公开(公告)日：2024-09-03

申请号：US18286009

申请日：2022-04-13

Applicant: MARIS—TECH LTD

Inventor： Magenya Roshanski

IPC: H03M13/35 ,  H04L1/00 ,  H03M13/00 ,  H03M13/27 ,  H04L65/75

CPC classification number: H03M13/35 ,  H04L1/0086 ,  H03M13/27 ,  H03M13/353 ,  H03M13/6547 ,  H04L65/762

Abstract: A method and apparatus for transmitting a streaming media with Forward Error Correction (FEC). Upon receiving the streaming media, the technique includes: encoding, segmenting and packeting frames comprised therein to generate a packetized elementary stream of media packets with variable sizes; for each L sequential media packets, calculating a “random loss” (RL) FEC parity and generating a respective RL FEC packet associated therewith; calculating “burst loss” (BL) FEC parities in accordance with a predefined FEC scheme and generating respective BL FEC structures bearing FEC headers and usable for generating BL FEC packets; calculating size-related parameters of a group of sequential media packets, the group being selected in accordance with the FEC scheme; and, transmitting the packetized elementary stream with interleaved FEC packets. The BL FEC packets are transmitted merely when the calculated size-related parameters meet a size-related burst loss (SRB) criterion defined by the FEC scheme.

公开(公告)号：US11917206B2

公开(公告)日：2024-02-27

申请号：US17555137

申请日：2021-12-17

Applicant: Lenovo (Singapore) Pte. Ltd.

Inventor： Razvan-Andrei Stoica ,  Hossein Bagheri ,  Vijay Nangia

IPC: H04N19/67 ,  H04N19/89 ,  H04L1/00 ,  H03M13/00

CPC classification number: H04N19/67 ,  H04L1/0041 ,  H04L1/0086 ,  H04N19/89

Abstract: Apparatuses, methods, and systems are disclosed for video codec aware RAN configuration and unequal error protection coding. An apparatus includes a processor that detects a video coded traffic stream and a video codec specification used to encode the video coded traffic stream, determines an awareness of video coded traffic application data units (“ADUs”) of the video coded traffic stream as video coded network abstraction layer (“NAL”) units of data, aligns the video coded NAL units of the video coded traffic stream to physical layer (“PHY”) transport elements and subsequent channel coding element partitions for a video coded traffic aware PHY transport, determines a channel coding rate allocation of the channel coding element partitions, and applies a forward error correction (“FEC”) coding given at least the determined channel coding rate allocation of the video coded traffic aware PHY transport to channel coding element partitions for protection against radio transmission errors.

公开(公告)号：US20230199221A1

公开(公告)日：2023-06-22

申请号：US17555137

申请日：2021-12-17

Applicant: Lenovo (Singapore) Pte. Ltd.

Inventor： Razvan-Andrei Stoica ,  Hossein Bagheri ,  Vijay Nangia

IPC: H04N19/67 ,  H04N19/89 ,  H04L1/00

CPC classification number: H04N19/67 ,  H04N19/89 ,  H04L1/0086 ,  H04L1/0041

Abstract: Apparatuses, methods, and systems are disclosed for video codec aware RAN configuration and unequal error protection coding. An apparatus includes a processor that detects a video coded traffic stream and a video codec specification used to encode the video coded traffic stream, determines an awareness of video coded traffic application data units (“ADUs”) of the video coded traffic stream as video coded network abstraction layer (“NAL”) units of data, aligns the video coded NAL units of the video coded traffic stream to physical layer (“PHY”) transport elements and subsequent channel coding element partitions for a video coded traffic aware PHY transport, determines a channel coding rate allocation of the channel coding element partitions, and applies a forward error correction (“FEC”) coding given at least the determined channel coding rate allocation of the video coded traffic aware PHY transport to channel coding element partitions for protection against radio transmission errors.

公开(公告)号：US20180331788A1

公开(公告)日：2018-11-15

申请号：US15973365

申请日：2018-05-07

Applicant: QUALCOMM Incorporated

Inventor： Hobin KIM ,  Hari SANKAR ,  Alexei Yurievitch GOROKHOV ,  Michael Lee MCCLOUD ,  Joseph Binamira SORIAGA

IPC: H04L1/08 ,  H04L5/00

CPC classification number: H04L1/08 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/1893 ,  H04L5/0046 ,  H04L5/0055 ,  H04W92/10

Abstract: Aspects of the present disclosure relate to retransmissions of data within wireless communication networks. For a retransmission, at least a portion of the encoded bits of an original transmission may be mapped to different bit locations in one or more modulated symbols based on a non-random mapping rule. In some examples, the encoded bits of a symbol may be reversed within the symbol for a retransmission. In other examples, the first and last encoded bits within a symbol may be switched for a retransmission. Other non-random mapping rules, such as a bit location offset, may also be used to map encoded bits to different bit locations in the modulated symbol within a retransmission.

公开(公告)号：US20170134900A1

公开(公告)日：2017-05-11

申请号：US15346482

申请日：2016-11-08

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Carlos Horacio Aldana

IPC: H04W4/02 ,  G01S3/74 ,  H04L5/00 ,  G01S3/72 ,  H04B7/06 ,  H04B17/27

CPC classification number: H04W4/023 ,  G01S3/72 ,  G01S3/74 ,  H01Q3/2605 ,  H04B7/0682 ,  H04B17/27 ,  H04L1/0086 ,  H04L5/0044 ,  H04L5/0053

Abstract: Aspects of the present disclosure may compensate for cyclic shift delays (CSD) in transmitted signals when estimating angle of arrival information of a wireless signal transmitted by a transmitting device. In some aspects, a receiving device may determine a presence of CSD in the wireless signal, and estimate an angle of arrival of the wireless signal based at least in part on the presence of CSD. For example, the receiving device may determine a first tap of the wireless channel based at least in part on the CSD. The receiving device may then determine a phase difference of the wireless signal between a plurality of antennas of the receiving device based on the first tap of the wireless channel. The receiving device may estimate the angle of arrival of the wireless signal based on the phase difference.

公开(公告)号：US09485334B2

公开(公告)日：2016-11-01

申请号：US14645044

申请日：2015-03-11

Applicant: QUALCOMM Incorporated

Inventor： Bin Tian ,  Sameer Vermani ,  Albert Van Zelst ,  Didier Johannes Richard Van Nee

IPC: H04W4/00 ,  H04L29/06 ,  H04L1/00 ,  H04L27/26 ,  H04L1/18 ,  H04W84/12

CPC classification number: H04L69/22 ,  H04L1/0009 ,  H04L1/0086 ,  H04L1/1854 ,  H04L1/1864 ,  H04L27/2607 ,  H04W84/12

Abstract: Aspects of the present disclosure relate to techniques for generating responses to extended length frames having increased symbol lengths without changing the short interframe space duration. According to certain aspects, a method for transmitting an extended length frame generally includes generating a packet having a preamble decodable by a first type of device having a first set of capabilities and a second type of device having a second set of capabilities, wherein at least a first portion of the packet is generated using an increased symbol duration or increased cyclic prefix relative to a second portion of the packet generated using a standard symbol duration or standard cyclic prefix and the packet includes padding symbols after the first portion, and outputting the generated packet for transmission.

Abstract translation: 本公开的方面涉及用于对具有增加的符号长度的扩展长度帧产生响应的技术，而不改变短的帧间间隔持续时间。 根据某些方面，用于发送扩展长度帧的方法通常包括生成具有可由具有第一组能力的第一类型的设备解码的前同步码的分组和具有第二组能力的第二类型的设备，其中至少 使用相对于使用标准符号持续时间或标准循环前缀生成的分组的第二部分的增加的符号持续时间或增加的循环前缀生成分组的第一部分，并且分组包括在第一部分之后的填充符号，并且输出生成的 分组传输。

公开(公告)号：US20160204888A1

公开(公告)日：2016-07-14

申请号：US15074213

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Maxim Gotman ,  Ronen Greenberger ,  Ziv Alina

IPC: H04J9/00 ,  H04B14/00 ,  H04W72/08 ,  H04L5/00

CPC classification number: H04J9/00 ,  H04B14/002 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/005 ,  H04L1/0086 ,  H04L5/005 ,  H04L5/006 ,  H04L25/067 ,  H04L27/0008 ,  H04L27/22 ,  H04L27/38 ,  H04L2027/003 ,  H04L2027/0055 ,  H04L2027/0067 ,  H04L2027/0085 ,  H04W72/082 ,  Y02D50/10

Abstract: Methods, systems, and devices are described for mitigating an unwanted increase in a coding rate of a wireless communication signal. A plurality of symbols including a transmitted codeword is received. The plurality of symbols including a first group of data symbols with a first modulation and coding scheme and a second group of data modulated pilot symbols with a second modulation and coding scheme. Applicable demodulation schemes are adaptively switched for each group of the plurality of symbols. The second group of data modulated pilot symbols are used in lieu of pilot symbols. The second modulation and coding scheme is a more reliable modulation and coding scheme than the first modulation and coding scheme.

Abstract translation: 描述了用于减轻无线通信信号的编码率的不期望的增加的方法，系统和设备。 接收包括发送码字的多个符号。 所述多个符号包括具有第一调制和编码方案的第一组数据符号和具有第二调制和编码方案的第二组数据调制导频符号。 适用的解调方案针对多个符号中的每一组自适应地切换。 使用第二组数据调制导频符号来代替导频符号。 第二调制和编码方案是比第一调制和编码方案更可靠的调制和编码方案。

公开(公告)号：US09391878B2

公开(公告)日：2016-07-12

申请号：US13358130

申请日：2012-01-25

Applicant: Kalyan Bade ,  Atul B. Mahamuni ,  Carol Barrett ,  Jean-Philippe Vasseur

Inventor： Kalyan Bade ,  Atul B. Mahamuni ,  Carol Barrett ,  Jean-Philippe Vasseur

IPC: H04L1/00 ,  H04L12/725 ,  H04L12/18 ,  H04L1/18 ,  H04L12/26 ,  H04L12/24

CPC classification number: H04L45/30 ,  H04L1/0086 ,  H04L1/1838 ,  H04L1/1877 ,  H04L1/1896 ,  H04L12/1868 ,  H04L41/0893 ,  H04L43/10 ,  H04L45/3065

Abstract: In one embodiment, a device in a computer network establishes a reliable map that defines a set of packet criteria for which reliability is desired over an unreliable link to a peer device. In response to receiving a first packet from the peer device over the unreliable link, the device acknowledges the first packet to the peer device when the first packet matches the packet criteria of the reliable map. Also, in response to receiving a second packet destined via the peer device over the unreliable link, the device buffers the second packet when the second packet matches the packet criteria of the reliable map and retransmits the buffered second packet over the unreliable link to the peer device until acknowledged by the peer device.

Abstract translation: 在一个实施例中，计算机网络中的设备建立可靠的映射，其定义了通过对对等设备的不可靠链路来期望可靠性的一组分组标准。 响应于通过不可靠链路从对等设备接收到第一分组，当第一分组匹配可靠地图的分组标准时，设备向对等设备确认第一分组。 此外，响应于通过不可靠链路接收经由对等设备发送的第二分组，当第二分组与可靠映射的分组标准匹配时，设备缓冲第二分组，并且经由不可靠链路将对缓冲的第二分组重传到对等体 设备，直到对等设备确认。

公开(公告)号：US20150288553A1

公开(公告)日：2015-10-08

申请号：US14435556

申请日：2013-11-26

Applicant: SONY CORPORATION

Inventor： Junge Qi ,  Joerg Robert ,  Jan Zoellner ,  Lothar Stadelmeier ,  Nabil Loghin

IPC: H04L27/26 ,  H04L1/22

CPC classification number: H04L27/2649 ,  H03M13/6306 ,  H03M13/6552 ,  H04H40/18 ,  H04L1/0046 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/1819 ,  H04L1/1893 ,  H04L1/22 ,  H04L27/265

Abstract: A receiver for receiving data in a broadcast system includes a broadcast receiver that receives via the broadcast system a receiver input data stream including plural channel symbols represented by constellation points in a constellation diagram, a demodulator that demodulates the channel symbols into codewords, and a decoder that decodes the codewords into output data words. A redundancy calculator determines a required amount of redundancy data required for correct demodulation and decoding by use of the originally received channel symbol and additional redundancy data. A broadband request unit requests, if demodulation of a channel symbol and/or decoding of a codeword is erroneous or likely to fail, a required amount of redundancy data via a broadband system, that is received by a broadband receiver via said broadband system. The demodulator and/or the decoder is configured to use the redundancy data for demodulation and decoding, respectively.

Abstract translation: 用于在广播系统中接收数据的接收机包括广播接收机，其经由广播系统接收包括由星座图中的星座点表示的多个信道符号的接收机输入数据流，将信道符号解调为码字的解调器，以及解码器 将码字解码为输出数据字。 冗余计算器通过使用原始接收的信道符号和附加的冗余数据来确定正确解调和解码所需的冗余数据所需的量。 宽带请求单元如果通道符号的解调和/或码字的解码是错误的或可能失败，则通过宽带系统通过宽带接收机经由所述宽带系统接收所需的冗余数据量。 解调器和/或解码器分别被配置为使用冗余数据进行解调和解码。

公开(公告)号：US20140247768A1

公开(公告)日：2014-09-04

申请号：US14276625

申请日：2014-05-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ismael GUTIERREZ ,  Alain MOURAD

IPC: H04W72/00

CPC classification number: H04L5/0053 ,  H04L1/0057 ,  H04L1/008 ,  H04L1/0084 ,  H04L1/0086 ,  H04L27/2602 ,  H04L65/607 ,  H04W72/005 ,  H04W72/04 ,  H04W72/0446

Abstract: A method is provided for transmitting at least one data stream by a transmitter in a wireless communication system. A preamble section including signaling information and a data section including at least one data stream are generated. A frame including the preamble section and the data section is generated. The generated frame is transmitted. The signaling information includes first information including information related to the at least one data stream and second information including information related to the first information

Abstract translation: 提供了一种用于在无线通信系统中由发射机发送至少一个数据流的方法。 产生包括信令信息的前导部分和包括至少一个数据流的数据部分。 生成包括前导部分和数据部分的帧。 生成的帧被发送。 信令信息包括包括与至少一个数据流相关的信息的第一信息和包括与第一信息有关的信息的第二信息