Ultrahigh throughput wireless broadband data transmission method and system

Abstract

The invention provides an ultrahigh throughput wireless broadband data transmission method, which can be used for fragmenting data according to available channel resources, and comprises the followingsteps that: a sending end sends a plurality of data frames and / or fragmented data according to the resources allocated by a channel; the successfully received data frame and / or fragmented data is confirmed according to the confirmation management frame fed back by the receiving end; the unsuccessfully received data frames and / or fragmented data are retransmitted; and when retransmission is carried out, fragmentation processing is carried out on the data frame and / or the fragmented data again according to the current available resources. Channel resources can be used to the maximum extent andare not influenced by the size of a fixed fragment; a large number of fragmentation can be avoided under the condition that resources are sufficient, the processing time of a processor is shortened while the expenditure of wireless resources is reduced, and the overall cost is reduced; through immediate acknowledgement, acknowledged received fragments are prevented from being transmitted for multiple times, and meanwhile, the network delay is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, in particular to an ultra-high throughput wireless broadband data transmission method and system. Background technique [0002] In network data transmission, fragmentation is beneficial for network data packets passing through a network whose maximum transmission unit (MTU, Maximum Transmission Unit) is smaller than the length of the data packet. In the case of wireless channel fading, multipath fading, and severe inter-channel interference, the use of fragmented transmission can avoid retransmission of the entire frame of data caused by channel errors and improve the overall success rate of data transmission. However, if the fragmentation is too small, there will be more overhead such as packet headers and fragmentation information, and the proportion of the payload will be small, which will lead to waste of network resources. Currently, network data fragmentation is generally fr...

AI Technical Summary

Problems solved by technology

[0005] 3. A large number of fragments will burden the processor and storage, and increase the cost of equipment

[0006] 4. Because the sender is not sure about the fragmentation reception of the receiver

Each retransmission needs to retransmit all fragments, wasting network bandwidth

[0007] 5. Once the fragment is lost, the sender confirms that it needs to retransmit, and the delay is relatively large

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