基于HDLC协议的通信通道设计  

Communication Channel based on HDLC Protocol

作　　者：周进松[1] 李正宇[1] 吴小艨[1] 

机构地区：[1]中国电子科技集团公司第三十研究所

出　　处：《通信技术》2016年第3期368-373,共6页Communications Technology

摘　　要：为对在E1信道上采用HDLC(高级数据链路控制)帧格式传输的数据进行有效控制,信道两端的管理设备需要进行数据通信。通信通道均通过HDLC链路实现,不额外增加通信信道。目前的通信通道,大多通过解析HDLC帧,在HDLC净荷中加入通信数据的方法来实现。为降低设计难度,通过分析HDLC链路的特点,提出用通信数据替换标志字段的方法建立通信通道。这种方法不解析HDLC帧、不增加净荷开销。与目前的方法相比更优,能降低设计难度,同时降低对信道的干扰,并便于后期维护。In order to effectively control the transmitted data on E1 channel in HDLC （High-level Data Link Control） frame format, data communication is required of between the channel management equipment at both ends. Communication channels are all realized by HDLC link, without additional channels. Current communication channels are mostly realized by parsing HDLC frame and adding communication data to the HDLC payload. For reducing the design difficulty and based on the characteristics of HDLC link, a method for constructing communication channel by replacing flag filed with communication data is proposed. This method parses no HDLC frame, and has no increase of payload overhead. Compared with the current method, the proposed method is fairly better in reducing design difficulty and channel interference, and also enjoys convenient Later maintenance.

关 键 词：HDLC 管理 标志字段 通信通道 解析 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]