Datagram protocol of wireless MWD system

In order to meet the urgent need for high transmission rates of wireless MWD and to avoid the use of currently fixed-structured datagram protocol,the paper analyzed the characteristics of downhole parameters and put forward a general,efficient,flexible and scalable datagram protocol which is suitable for wireless MWD system.The proposed incremental transmission technology can avoid redundancy,shorten the length of the datagram and improve the transmission efficiency of the system.The designed datagram field delimiting method is an improvement to the traditional delimiting method of datagram,which can adjust the size of the corresponding data fields according to the actual values of parameters,so the space of datagram is used effectively.The designed numbering method for datagram can customize the datagram itself according to the requirements,improve the flexibility of the system,make the system more scalable and meet the more measuring parameters needs of MWD systems.