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    • 1. 发明申请
    • CONGESTION CONTROL IN A COMMUNICATION NETWORK BASED ON THE CSMA/CA PROTOCOL
    • 基于CSMA / CA协议的通信网络中的控制控制
    • US20100260046A1
    • 2010-10-14
    • US12746777
    • 2008-12-09
    • Hans-Juergen ReumermanGuido Roland HiertzYunpeng ZangGustaf Sebastian MaxLothar StiborBernhard Walke
    • Hans-Juergen ReumermanGuido Roland HiertzYunpeng ZangGustaf Sebastian MaxLothar StiborBernhard Walke
    • H04L12/26
    • H04L12/4135H04L47/10H04L47/14H04L47/2408H04W74/0875
    • The present invention relates to a congestion control method for a communication system supporting layered radio channel structure for communication between at least a first communication device and a second communication device, the layered structure comprising at least a physical layer and a medium access layer. The communication system is arranged to offer a first type of service with a first priority order and a second type of service with a second priority order, in the communication system messages comprising a preamble and a payload can be transmitted between devices, each message being separated by at least a period corresponding to a minimum allowable period between two messages. In the method the first communication device first (a) generates (301) a physical layer message pertaining to the first type of service; (b) senses (303) the radio channel idle for at least a period corresponding to the minimum allowable period between two messages; and (c) transmits (305) the physical layer message comprising a special preamble indicative of the type of service the message pertains, wherein the content of the preamble is arranged to be detected by the second communication device within a communication range irrespective of the decoding state of the payload of the transmitted message.
    • 本发明涉及一种用于支持分层无线电信道结构的通信系统的拥塞控制方法,用于至少第一通信设备和第二通信设备之间的通信,所述分层结构至少包括物理层和介质接入层。 通信系统被布置为提供具有第一优先级顺序的第一类型的服务和具有第二优先级顺序的第二类型的服务,在包括前导码的通信系统消息和有效载荷可以在设备之间传送,每个消息被分离 至少一个对应于两个消息之间的最小允许周期的周期。 在该方法中,第一通信设备首先(a)生成(301)与第一类型的服务有关的物理层消息; (b)感测(303)无线电信道空闲至少一个与两个消息之间的最小允许周期相对应的周期; 以及(c)发送(305)包括指示消息所属的服务类型的特殊前导的物理层消息,其中前导码的内容被布置成由通信范围内的第二通信设备在与解码 发送消息的有效载荷的状态。