METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN A COMMUNICATION SYSTEM USING A LOW-DENSITY PARITY CHECK CODE

    公开(公告)号:US20210314002A1

    公开(公告)日:2021-10-07

    申请号:US17353130

    申请日:2021-06-21

    Abstract: An apparatus is provided for channel encoding in a communication system using an LDPC code. The apparatus includes at least one processor configured to encode input bits using a Bose-Chaudhuri-Hocquenghem (BCH) code, shorten one or more bits of the encoded input bits according to a number of bit groups to be shortened and an order among a plurality of orders according to which the bit groups are shortened, wherein the number of bit groups to be shortened is based on a number of bits to be shortened which is based on a number of the encoded input bits, encode information bits including the encoded input bits and the shortened one or more bits, using an LDPC code to generate parity bits, and puncture one or more bits in the parity bits based on a puncturing parameter among puncturing parameters; and a transmitter configured to transmit a signal that is generated from the encoded information bits based on the punctured one or more bits. The plurality of orders are based on the puncturing parameters and include a first order and a second order that is different from the first order.

    METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN A
COMMUNICATION SYSTEM USING A LOW-DENSITY PARITY CHECK CODE
    2.
    发明申请
    METHOD AND APPARATUS FOR CHANNEL ENCODING AND DECODING IN A COMMUNICATION SYSTEM USING A LOW-DENSITY PARITY CHECK CODE 审中-公开
    使用低密度奇偶校验代码的通信系统中的通道编码和解码的方法和装置

    公开(公告)号:US20140143640A1

    公开(公告)日:2014-05-22

    申请号:US14164870

    申请日:2014-01-27

    Abstract: A method is provided for channel encoding in a communication system using a Low-Density Parity Check (LDPC) code. The method includes grouping information bits into a plurality of groups; determining an order of the plurality of groups to be shortened, based on whether a specific region in a frame is to be LDPC-encoded, where the specific region has a different ratio of a number of bits to be shortened to a number of bits to be punctured; determining a length of an information word to be obtained by shortening the plurality of groups; shortening the plurality of groups on a group basis in the determined order based on the determined length of the information word; and LDPC-encoding a shortened information word.

    Abstract translation: 提供了一种使用低密度奇偶校验(LDPC)码的通信系统中的信道编码方法。 该方法包括将信息比特分组成多个组; 基于帧中的特定区域是否要进行LDPC编码来确定要缩短的多个组的顺序,其中特定区域具有不同比例的比特缩短到比特数, 被刺伤 确定通过缩短所述多个组来获得的信息字的长度; 基于所确定的信息字长度,以确定的顺序,以组为基础缩短多个组; 以及LDPC编码缩短的信息字。

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20190274128A1

    公开(公告)日:2019-09-05

    申请号:US16416857

    申请日:2019-05-20

    Abstract: A method and an apparatus are provided for transmitting and receiving signaling information in a digital broadcasting system. The method includes encoding first signaling information for a physical layer to generate a first coded block; encoding second signaling information to generate a second coded block; and transmitting a frame including the first coded block, the second coded block, and at least one physical layer pipe (PLP) data. The first signaling information has a fixed number of bits, and the second signaling information has a variable number of bits. The first signaling information includes information indicating a forward error correction (FEC) type of the second signaling information for receiving the second information, and the second signaling information includes information indicating a modulation scheme used for a related PLP data.

    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CONTROL INFORMATION IN BROADCAST COMMUNICATION SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CONTROL INFORMATION IN BROADCAST COMMUNICATION SYSTEM 审中-公开
    用于在广播通信系统中发送/接收控制信息的方法和装置

    公开(公告)号:US20140254463A1

    公开(公告)日:2014-09-11

    申请号:US14280966

    申请日:2014-05-19

    Abstract: Methods and apparatuses for transmitting/receiving control information in a system in which multiple frequencies are used to carry multiple services by means of transmission frames, which are constituted of time resources and/or time-frequency resources. Control information regarding frame configuration information is not transmitted over a separate control channel but over a data channel. The service traffic for each non-primary service traffic may include control information for a primary service. Thus, even when a receiver changes the current service to a target service, control information necessary to detect the location of the target service in a frame and demodulate the target service can be acquired, and thus a service change can be made without reading a separate control channel.

    Abstract translation: 在多个频率用于通过由时间资源和/或时间 - 频率资源构成的传输帧来承载多个业务的系统中发送/接收控制信息的方法和装置。 关于帧配置信息的控制信息不是通过单独的控制信道而是通过数据信道发送的。 每个非主要服务流量的服务流量可以包括主服务的控制信息。 因此,即使当接收方将当前服务改变为目标服务时,也可以获取检测帧中的目标服务的位置所需的控制信息并且解调目标服务,因此可以在不读取单独的 控制通道。

    APPARATUS AND METHOD FOR REDUCING PAPR OF PREAMBLE SIGNAL IN DIGITAL BROADCASTING SYSTEM
    8.
    发明申请
    APPARATUS AND METHOD FOR REDUCING PAPR OF PREAMBLE SIGNAL IN DIGITAL BROADCASTING SYSTEM 审中-公开
    数字广播系统中减少前置信号PAPR的装置和方法

    公开(公告)号:US20140307831A1

    公开(公告)日:2014-10-16

    申请号:US14315725

    申请日:2014-06-26

    CPC classification number: H04L27/2633 H04L27/2618

    Abstract: Methods and apparatuses are provided for reducing a Peak to Average Power Ratio (PAPR) in a digital broadcasting system. Reserved tones are determined in previously determined locations of sub-carriers that do not collide with a pilot signal of a preamble in a frame. A signal is transmitted through the reserved tones in a period for which the preamble is transmitted. If a Fast Fourier Transform (FFT) size is 8K, locations of the reserved tones are determined in accordance with a specified chart.

    Abstract translation: 提供了用于降低数字广播系统中的峰均功率比(PAPR)的方法和装置。 在与帧中的前导码的导频信号不冲突的子载波的先前确定的位置中确定保留音调。 在发送前同步码的时段内通过保留的音调发送信号。 如果快速傅里叶变换(FFT)大小为8K,则保留音调的位置根据指定的图表确定。

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