一种用于北斗大容量通信的丢包重传机制的实现  

Realization of a Packet Loss Retransmission Mechanism for Beidou Large-capacity Communication

作　　者：杨双 YANG Shuang(Shenzhen Far-East Huaqiang Navigation and Position Co.,Ltd.,Shijiazhuang 050081,China)

机构地区：[1]深圳市远东华强导航定位有限公司,河北石家庄050081

出　　处：《无线电通信技术》2022年第1期196-202,共7页Radio Communications Technology

摘　　要：我国北斗三号卫星导航系统的建立,解决了北斗一号和北斗二号报文通信功能存在的局限性,不仅通信速率得到了极大提升,而且通信容量扩充了近10倍,可支持语音、图片等大容量信息的传输,但是由于语音等信息容量较大,在传输之前需要经过压缩编码和数据分包重组,由于北斗卫星链路容易受到大气条件、电磁干扰等因素影响,容易出现数据丢包,因此,为了保证信息传输完全以及用户体验,需要丢包重传。基于此提出了一种新的北斗大容量通信丢包重传机制,不依赖于终端设备的存储容量,经试验验证成功率可达98.2%,适用于各行各业使用北斗发送大容量数据的应用。The establishment of my country’s Beidou-3 satellite navigation system has solved the limitations of Beidou-1 and Beidou-2’s message communication function.Not only the communication rate has been greatly improved,but the communication capacity has been expanded by nearly 10 times,and it can support voice.The transmission of large-capacity information such as,pictures,etc.However,due to the large capacity of information such as voice,compression coding and data sub-packaging and reassembly are required before transmission.Because the Beidou satellite link is easily affected by atmospheric conditions,electromagnetic interference and other factors,data is prone to appear Packet loss,therefore,in order to ensure complete information transmission and user experience,packet loss and retransmission are required.The Beidou large-capacity communication packet loss retransmission mechanism introduced in this article does not depend on the storage capacity of the terminal equipment.The success rate can reach 98.2%after experimental verification.It is suitable for applications that use Beidou to send large-capacity data in various industries.

关 键 词：北斗短报文通信 大容量数据 终端阵列 丢包重传 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]