![]() ![]() In order to guarantee the correct transmission of data data between two network nodes, need to use automatic repeat request agreement ARQ in data link layer or transport layer.ARQ agreement is a kind of error correcting agreement, by use, confirms and overtime these two mechanism, realizes reliable erroneous transmissions on the basis of unreliable service.If transmit leg is not received acknowledgement frame within a period of time after transmission Frame, transmit leg resends described Frame.Common ARQ protocol algorithm has and stops waiting for algorithm, Continual ARQ algorithm, steps back N frame algorithm, selects retransmission algorithm and sliding window algorithm.Wherein, sliding window algorithm is the comprehensive expression of person of ARQ protocol algorithm, and when receiving packet, recipient can reply acknowledgement frame immediately, to inform that sending a Frame sends successfully or send unsuccessfully.Transmit leg is retransmitting sending failed Frame according to acknowledgement frame. Therefore, the sliding window algorithm is applied to the half-duplex communication, and the receiving and transmitting efficiency and the throughput rate of the half-duplex communication are improved. The invention is suitable for the technical field of communication, and provides a sliding window-based half-duplex communication method and a sliding window-based half-duplex communication system, wherein the method comprises the following steps: a sending end sends connection request information to a receiving end after receiving response information replied by the receiving terminal according to the connection request information, the transmitting terminal transmits a data block to be transmitted to the receiving terminal, wherein the data block to be transmitted comprises a plurality of data frames a receiving end receives the data block to be sent, checks the data frame in the data block to be sent, stores the data frame which is successfully checked into a buffer area, and records the receiving condition of the data frame after the sending end finishes sending the data block to be sent, sending block end information to a receiving end and the receiving end sends confirmation information to the sending end according to the block end information so as to inform the sending end of the receiving condition of the data frame in the data block to be sent. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Shenzhen Babngyan Information Technology Co ltd filed Critical Shenzhen Babngyan Information Technology Co ltd Priority to CN201410352493.5A priority Critical patent/CN104113403B/en Publication of CN104113403A publication Critical patent/CN104113403A/en Application granted granted Critical Publication of CN104113403B publication Critical patent/CN104113403B/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Shenzhen Babngyan Information Technology Co ltd Priority date (The priority date is an assumption and is not a legal conclusion. Shenzhen Babngyan Information Technology Co ltd Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 刘宏钧 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN201410352493.5A Other languages Chinese ( zh) ![]() Google Patents Sliding window-based half-duplex communication method and systemĭownload PDF Info Publication number CN104113403A CN104113403A CN201410352493.5A CN201410352493A CN104113403A CN 104113403 A CN104113403 A CN 104113403A CN 201410352493 A CN201410352493 A CN 201410352493A CN 104113403 A CN104113403 A CN 104113403A Authority CN China Prior art keywords data block sent frame sliding window transmitting terminal Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() Google Patents CN104113403A - Sliding window-based half-duplex communication method and system CN104113403A - Sliding window-based half-duplex communication method and system ![]()
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