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    Radio communication
    2.
    发明授权
    Radio communication 有权

    公开(公告)号：US10686489B2

    公开(公告)日：2020-06-16

    申请号：US16063182

    申请日：2016-10-25

    Applicant: Nordic Semiconductor ASA

    Inventor： Eivind Olsen ,  Sverre Wichlund

    IPC: H04B1/7075 ,  H04L27/26 ,  H04L27/00 ,  H04B1/707 ,  H04L7/04 ,  H04B1/7073 ,  H04B1/7087

    Abstract: A digital radio receiver (7) is arranged to receive and process data frames, each data frame comprising (i) a plurality of identical synchronization sequences; (ii) identification data different from the synchronization sequences; and (iii) convolution-encoded message data. An initial-synchronization section of the receiver (7) uses the plurality of synchronization sequences in a received data frame to perform a frequency-synchronization or symbol-timing-synchronization operation. A frame-synchronization section determines frame-synchronization information by correlating at least a part of the received identification data against reference identification data stored in a memory. A convolution-decoding section uses the frame-synchronization information to decode the message data.

    RADIO COMMUNICATION
    3.
    发明申请
    RADIO COMMUNICATION 有权
    无线电通信

    公开(公告)号：US20170078125A1

    公开(公告)日：2017-03-16

    申请号：US15312148

    申请日：2015-06-09

    Applicant: Nordic Semiconductor ASA

    Inventor： David Alexandre Engelien-Lopes ,  Sverre Wichlund ,  Eivind Olsen ,  Phil Corbishley ,  Ola Bruset

    IPC: H04L27/20 ,  H04L27/26 ,  H04B1/7073

    CPC classification number: H04L27/2017 ,  H04B1/7073 ,  H04J13/0074 ,  H04J13/10 ,  H04L7/00 ,  H04L23/02 ,  H04L27/18 ,  H04L27/2003 ,  H04L27/22 ,  H04L27/233 ,  H04L27/2659 ,  H04L27/2662 ,  H04L2027/0046 ,  H04L2027/0065

    Abstract: A radio transmitter (4) comprises an encoder (5) that receives one or more variable message bits, and encodes each message bit that has a first value as a predetermined first binary chip sequence and encodes each message bit that has the opposite value as a predetermined second binary chip sequence. The radio transmitter (4) transmits data packets, each comprising (i) a predetermined synchronisation portion, comprising one or more instances of the first binary chip sequence, and (ii) a variable data portion, comprising one or more encoded message bits output by the encoder. A radio receiver (9) receives such data packets. It uses the synchronisation portion of a received data packet to perform a frequency and/or timing synchronisation operation, and then decodes message bits from the data portion of the data packet.

    Abstract translation: 无线电发射机（4）包括接收一个或多个可变消息比特的编码器（5），并且将具有第一值的每个消息比特编码为预定的第一二进制码片序列，并将具有相反值的每个消息比特编码为 预定的第二二进制码片序列。 无线电发射机（4）发送数据分组，每个数据分组包括（i）包括第一二进制码片序列的一个或多个实例的预定同步部分，以及（ii）可变数据部分，包括一个或多个由 编码器。 无线电接收机（9）接收这样的数据分组。 它使用接收的数据分组的同步部分来执行频率和/或定时同步操作，然后从数据分组的数据部分解码消息比特。

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