The embodiment of the present invention relates to a data transmission method and device. The method includes: the sending device determines the mapping relationship between the identity of TCP packet and that of RLC PDU. The RLC status report sent by the receiving device includes the identification of the RLC PDU. The RLC status report is used to indicate the reception of the receiving device by the included RLC PDU identification indication. The transmitting device generates a TCP status report according to the RLC status report and the mapping relationship between the TCP packet identification and the RLC PDU identity. The TCP status report is used to indicate the reception of the TCP packet in the receiving device. The invention realizes the function of TCP acknowledgment packet by transmitting RLC acknowledgment packet in the air port. Because RLC acknowledgment packet occupies much less resources than TCP acknowledgment packet in the air port transmission, it can improve the data stream transmission rate of TCP protocol.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请,说明书已公开。
【技术保护点】
PCT国内申请,权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请,...
【专利技术属性】
技术研发人员:石娴文,庞伶俐,楼群芳,巢志骏,
申请(专利权)人:华为技术有限公司,
类型:发明
国别省市:广东,44
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