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    • 52. 发明申请
    • Data Unit Sender and Data Unit Relay Device
    • 数据单元发送器和数据单元继电器
    • US20110038376A1
    • 2011-02-17
    • US12911025
    • 2010-10-25
    • Henning WiemannReiner LudwigMichael Meyer
    • Henning WiemannReiner LudwigMichael Meyer
    • H04L12/56
    • H04L1/1809H04L1/0002H04L1/0015H04L1/16H04L1/1825H04L1/1874H04L1/1883H04L2001/0097
    • New methods and devices for implementing an ARQ mechanism over a multi-hop connection (sender-relay-receiver) are proposed. A communication protocol is described in accordance with which data units are arranged in a sequence and each sent data unit is identifiable by a sequence position identifier. The sender implements a sending peer, the relay a relay peer and the receiver a receiving peer. Feedback messages are exchanged, which using said sequence position identifiers, carry information on a receipt of sent data units. The communication protocol provides for at least a first type and a second type of receipt information, the first type (RACK) of receipt information being indicative of a correct receipt of a data unit at a relay peer of said communication protocol, and the second type (ACK) of receipt information being indicative of a correct receipt of a data unit at a final destination peer of said communication protocol.
    • 提出了通过多跳连接(发送方 - 中继 - 接收机)实现ARQ机制的新方法和设备。 根据哪个数据单元按顺序排列的通信协议被描述,并且每个发送的数据单元可以通过序列位置标识符来识别。 发送方实现发送对等体,中继中继对等体和接收方接收对等体。 交换反馈消息,其使用所述序列位置标识符携带发送数据单元的接收信息。 通信协议提供至少第一类型和第二类型的接收信息,接收信息的第一类型(RACK)指示在所述通信协议的中继对等体处的数据单元的正确接收,第二类型 (ACK)指示在所述通信协议的最终目的地对等体处的数据单元的正确接收。
    • 58. 发明申请
    • Retransmission In Wireless Communication Systems
    • 无线通信系统中的重传
    • US20080089314A1
    • 2008-04-17
    • US11793229
    • 2004-12-17
    • Michael MeyerReiner Ludwig
    • Michael MeyerReiner Ludwig
    • H04J3/24
    • H04L47/10H04L47/14H04L47/26
    • The invention relates to retransmissions in wireless communication systems. It is proposed to reduce the retransmission delays by utilizing feedback associated with a lower protocol layer than the conventional feedback messages of the ARQ functionality. After sending a packet from a transmitter towards a receiver, the transmitter monitors the link for a low-level control signal from the receiver. The low-level control information can e.g. comprise power control commands or be related to link quality indicators. Based on this signal, it is decided whether a retransmission is to take place, e.g. at the transmitter or at an external control unit.
    • 本发明涉及无线通信系统中的重传。 提出通过利用与ARQ功能的常规反馈消息相比较的与较低协议层相关联的反馈来减少重传延迟。 在从发射机向接收机发送分组之后,发射机监视来自接收机的低级控制信号的链路。 低级控制信息可以例如。 包括功率控制命令或与链路质量指标相关。 基于该信号,决定是否发生重传,例如, 在发射机或外部控制单元。
    • 60. 发明授权
    • Data flow control method
    • 数据流控制方式
    • US07203167B2
    • 2007-04-10
    • US10114517
    • 2002-04-01
    • Michael MeyerReiner Ludwig
    • Michael MeyerReiner Ludwig
    • H04L1/00
    • H04L69/16H04L1/0001H04L1/1635H04L1/1809H04L1/1887H04L47/10H04L47/18H04L47/193H04L47/27H04L47/283H04L47/29H04L47/34H04L69/163
    • A method of controlling the flow of an amount of data from a sending peer to a receiving peer of a predetermined communication protocol is described. The method comprises dividing the amount of data into a plurality of data segments, where the data segments are ordered in a sequence. The segments are sent to the receiving peer in the order of said sequence. The receiving peer acknowledges the correct receipt of a data segment and identifies the last correctly received data segment of the sequence that was received in the proper order of the sequence. The sending peer is arranged such that if it receives a threshold number of duplicate acknowledgements, it performs a retransmission. The threshold number that trigger a retransmission is an adaptive parameter and may assume values larger than three.
    • 描述了一种控制从发送对等体到预定通信协议的接收对等体的数据量的流量的方法。 该方法包括将数据量划分成多个数据段,其中数据段按顺序排列。 按照所述序列的顺序将段发送到接收对等体。 接收对等体确认数据段的正确接收,并按顺序的正确顺序识别接收的序列的最后正确接收的数据段。 发送对等体被布置为使得如果其接收到重复确认的阈值数量,则其执行重传。 触发重传的阈值是一个自适应参数,并且可以假设大于三的值。