DATA PACKET TRANSMISSION/RECEPTION APPARATUS AND METHOD

    公开(公告)号:US20160134393A1

    公开(公告)日:2016-05-12

    申请号:US14981042

    申请日:2015-12-28

    CPC classification number: H04L1/0041 H03M13/05 H03M13/373 H03M13/611

    Abstract: A method and apparatus are provided for recovering data efficiently even when data loss has occurred over a channel or network. The packet transmission method includes arranging a first transmission packet in a source symbol in a first region of a source block; arranging a second transmission packet in a space starting with an empty space of a last source symbol where the first transmission packet is arranged, remaining after arranging the first transmission packet; arranging information related to the second transmission packet in a second region of the source block; performing Forward Error Correction (FEC) encoding on the source block; and transmitting the encoded source block.

    APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN DIGITAL VIDEO BROADCASTING SYSTEM
    62.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING SIGNAL IN DIGITAL VIDEO BROADCASTING SYSTEM 有权
    用于在数字视频广播系统中发送信号的装置和方法

    公开(公告)号:US20140317667A1

    公开(公告)日:2014-10-23

    申请号:US14255241

    申请日:2014-04-17

    CPC classification number: H04N21/2383

    Abstract: A method for bit-interleaving coded bits for Incremental Redundancy (IR) transmission in a transmission apparatus of a digital video broadcasting system is provided. The method includes sequentially writing the coded bits in a memory area having a predetermined size, reading the coded bits written in the memory area based on a reading order that is differently set for each of normal transmission and at least one IR transmission, and outputting one coded systematic bit stream interleaved for the normal transmission and at least one coded parity bit stream interleaved for at least one IR transmission.

    Abstract translation: 提供了一种用于在数字视频广播系统的发送装置中对用于增量冗余(IR)传输的编码比特进行比特交织的方法。 该方法包括:将编码的比特顺序地写入具有预定大小的存储区域中,基于对正常传输和至少一个IR传输进行不同设置的读取顺序读取写入存储区域中的编码比特,并输出一个 为正常传输交错编码的系统比特流和交织至少一个IR传输的至少一个编码奇偶校验比特流。

    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING FORWARD ERROR CORRECTION PACKET
    63.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING FORWARD ERROR CORRECTION PACKET 有权
    发送和接收前向纠错分组的装置和方法

    公开(公告)号:US20140317476A1

    公开(公告)日:2014-10-23

    申请号:US14255215

    申请日:2014-04-17

    CPC classification number: H04L1/0083 H04L1/0041

    Abstract: A method and an apparatus for transmitting and receiving a packet in a broadcasting and communication system are provided. The method includes splitting a source packet block including source packets into a plurality of source packet subblocks, converting the source packet subblocks to source symbol subblocks, respectively, generating a plurality of first repair symbol blocks by encoding the source packet subblocks using a first error correction code, configuring an error correction source packet by adding a source error correction payload IDentifier (ID) to source symbols included in the source symbol subblocks and configuring an error correction repair packet by adding a repair error correction payload ID to repair symbols included in the first repair symbol subblocks, and transmitting the error correction source packet and the error correction repair packet.

    Abstract translation: 提供了一种用于在广播和通信系统中发送和接收分组的方法和装置。 该方法包括将包括源分组的源分组块分成多个源分组子块,分别将源分组子块转换为源符号子块,通过使用第一纠错校正对源分组子块进行编码来生成多个第一修复符号块 通过将源错误校正有效载荷标识符(ID)添加到源符号子块中包含的源符号来配置错误校正源包,并通过添加修复错误纠正有效载荷ID来修复包括在第一 修复符号子块,并发送纠错源包和纠错修复包。

    APPARATUS AND METHOD FOR CHANNEL ENCODING AND DECODING IN COMMUNICATION SYSTEM USING LOW-DENSITY PARITY-CHECK CODES
    65.
    发明申请
    APPARATUS AND METHOD FOR CHANNEL ENCODING AND DECODING IN COMMUNICATION SYSTEM USING LOW-DENSITY PARITY-CHECK CODES 有权
    使用低密度奇偶校验码的通信系统中通道编码和解码的装置和方法

    公开(公告)号:US20130042165A1

    公开(公告)日:2013-02-14

    申请号:US13655075

    申请日:2012-10-18

    Abstract: A method and an apparatus are provided for decoding a channel in a communication system using a LDPC code. A shortening pattern and a puncturing pattern are determined based on a received signal. A value of a shortened bit is set to 0 according to the determined shortening pattern, erasures are set according to the determined puncturing pattern, and LDPC decoding is performed, when bits exist which have been used to perform shortening or puncturing. Determining the shortening pattern and the puncturing pattern includes setting a predetermined ratio of the number of punctured bits to the number of shortened bits.

    Abstract translation: 提供了一种使用LDPC码对通信系统中的信道进行解码的方法和装置。 基于接收到的信号来确定缩短模式和删截模式。 根据确定的缩短模式,将缩短比特的值设置为0,根据所确定的删截模式设置擦除,并且当存在已经用于执行缩短或删截的比特时执行LDPC解码。 确定缩短模式和删截模式包括将删截比特数的预定比率设置为缩短比特数。

    BANDWIDTH-BASED SYNCHRONIZATION SIGNAL CONFIGURATION METHOD AND DEVICE

    公开(公告)号:US20240236889A9

    公开(公告)日:2024-07-11

    申请号:US18401034

    申请日:2023-12-29

    CPC classification number: H04W56/0015 H04L27/26025 H04W76/28

    Abstract: The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. In addition, the present disclosure relates to a method carried out by a base station of a wireless communication system, and a device for carrying out same, the method comprising the steps of: determining whether a frequency band operated by a base station uses a bandwidth that is narrower than a preset bandwidth; if a bandwidth that is narrower than the preset bandwidth is used, determining a subcarrier spacing (SCS) that is narrower than a preset SCS; generating a synchronization signal block (SSB) using the determined SCS; and transmitting the SSB, wherein the determined SCS is smaller than 15 kHz.

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