Sending and receiving method and device of continuous data package

Abstract

The invention provides a sending and receiving method and a device of a continuous data package. The method for sending the continuous data package comprises the following steps that a first station sends a compressing request to a second station, wherein the compressing request carries flow identification and field information of a medial access control (MAC) frame header of a follow-up data package; a compressing response sent by the second station is received; and a first data package including an integrated MAC frame header or a compressing MAC frame header with flow fields is sent to the second station, wherein the flow fields comprise the flow identification. According to the sending and receiving method and the device of continuous data package, field length of the MAC frame header of the continuous data package can be effectively compressed, unnecessary expenditure of the continuous data package is saved, utilization efficiency of information channel media resources is improved, and energy conservation of sending stations is benefited. In addition, the MAC frame header field with changes can be flexibly processed, and flexibility of using is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for continuously transmitting data packets. technical background [0002] The IEEE 802.11 technology formulates a general medium access control layer (Medium access control, MAC) for multiple physical layers (Physical layer, PHY) to regulate the construction of the wireless local area network. Among them, the main task of the media access control layer is to establish addressing and channel access control mechanisms for multiple sites in the same network, making communication between multiple sites possible. [0003] The communication between sites takes the data packet structure as the basic unit, and the data packet structure is as follows: figure 1 As shown, the short training field (Short traning field, referred to as STF) and the long training field (Long traning field, referred to as LTF) are the preamble of the data packet, and the former is used for packet s...

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Problems solved by technology

[0009] However, the problems of this prior art mainly include: firstly, the information identified by the flow identification negotiated between the stations is all fixed, if information changes in continuous packets, for example, the QoS control field of the packet and the flow identification When the QoS control fields of the identification are different, the flow identification is not available when the current packet is transmitted, and the flow identification needs to be renegotiated or the complete data packet format is sent, and the application of the flow identification lacks flexibility; The TAIL / ACK frame will occupy more channel resources; the third is that the length of the flow identifier is to be defined, and there is still room for compressing the MAC frame header field

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