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    • 5. 发明申请
    • A METHOD AND A CENTRAL CONTROL UNIT FOR CHANNEL SWITCHING IN A PACKET-BASED COMMUNICATION NETWORK
    • 基于分组通信网络的信道切换的方法和中央控制单元
    • WO2005006013A1
    • 2005-01-20
    • PCT/SE2003/001894
    • 2003-12-04
    • INFINEON TECHNOLOGIES AGLEWIS, MichaelHJELM, Mikael
    • LEWIS, MichaelHJELM, Mikael
    • G01S7/02
    • G01S7/021G01S7/023H04W16/14H04W36/20
    • In a packet-based communication network a central control unit indicates its presence on the first channel by in addition to data traffic transmits regular beacons with a specified time interval, and upon detecting radar signals on a first channel the central control unit transmits a channel switch message and immediately switches to a second channel and resumes data traffic on that second channel, thereafter repeatedly transmitting a channel switch message on the first channel and a beacon on the second channel by switching back to the first channel to transmit second channel switch messages (either contained in beacons or separately) and switching back to the second channel to transmit regular beacons for each permissible beacon transmission time slot, until as many devices as possible associated with the central control unit has followed to the second channel.
    • 在基于分组的通信网络中,除了数据业务以规定的时间间隔传输规则的信标之外,中央控制单元还指示其在第一信道上的存在,并且在第一信道上检测到雷达信号时,中央控制单元发送信道切换 消息并立即切换到第二信道并恢复该第二信道上的数据业务,此后在第一信道上重复发送信道切换消息和第二信道上的信标,通过切换回第一信道以发送第二信道切换消息 包含在信标中或单独地),并且切换回第二信道以为每个允许的信标传输时隙传输规则信标,直到尽可能多的与中央控制单元相关联的设备已经跟随到第二信道。
    • 9. 发明申请
    • A METHOD OF ERROR CONTROL CODING AND DECODING OF MESSAGES IN A PACKET-BASED DATA TRANSMISSION SYSTEM
    • 基于分组数据传输系统的错误控制编码和消息解码的方法
    • WO2004042991A1
    • 2004-05-21
    • PCT/SE2003/001714
    • 2003-11-06
    • INFINEON TECHNOLOGIES AGLEWIS, Michael
    • LEWIS, Michael
    • H04L1/00
    • H04L1/0061H03M13/03H04L1/0041H04L1/0072H04L69/22H04W84/12
    • In a packet-based transmission system error control coding of messages is achieved at a transmitting device between scrambling of the message frame and transmission. Initially the message frame comprising a header with frame length information, a data portion and a frame check sequence is expanded with gaps inserted to the data portion and the frame check sequence and the frame length information is updated, the frame is then scrambled and forward error correction data is generated and written into the gaps. An outer frame check sequence is generated and appended as part of the frame, after which the entire frame is transmitted. Error control decoding of the transmitted frame is achieved between reception and descrambling at a receiving device. Initially the outer frame check sequence is optionally checked and removed, an error correction algorithm based on the inserted forward error correction data is applied to the frame in response to errors, after which the frame is descrambled, the forward error correction data and the inserted gaps are removed and the frame is restored to its original state. Finally the length information of the header is updated to its original value.
    • 在基于分组的传输系统中,在发送设备之间在消息帧和传输的加扰之间实现消息的错误控制编码。 首先,包括具有帧长度信息的报头,数据部分和帧校验序列的消息帧以插入数据部分的间隙和帧校验序列被更新,并且帧长度信息被更新,然后将帧加扰和前向误差 生成校正数据并写入间隙。 生成外帧校验序列并作为帧的一部分进行附加,之后传输整个帧。 在接收设备的接收和解扰之间实现发送帧的错误控制解码。 最初,可选地检查和去除外部帧检查序列,基于插入的前向纠错数据的错误校正算法响应于错误被应用于帧,之后解码帧,前向纠错数据和插入的间隙 被移除并且帧恢复到其原始状态。 最后,标题的长度信息被更新为其原始值。