Method and device for dynamic symbol interleaving and deinterleaving based on number of spatial data streams

Abstract

The invention discloses a dynamic symbol interweaving and de-interleaving method and device based on spatial data flow numbers. The method comprises the steps that a transmitter carries out symbol interweaving processing on sent data by adopting different optimal interweaving depths according to combination values between different bandwidths and different spatial data flow numbers, interweaving relevant information is recorded in signaling fields of physical layer frames, a receiver obtains bandwidth and spatial data flow number information by analyzing the signaling fields, symbol de-interweaving processing is carried out on the received data by utilizing the interweaving depth corresponding to the combination values between the different bandwidths and the different spatial data flow numbers, and spatial data flow is restored. The interweaving and de-interleaving device for the method is further provided. Through the device, the dynamic symbol interweaving and de-interleaving function based on the spatial data flow numbers can be achieved, and the performance gain generated by interweaving can be achieved to the largest extent under the condition of not increasing achievement complexity.

Description

technical field [0001] The invention relates to a dynamic symbol interleaving and deinterleaving method and device based on the number of spatial data streams, and belongs to the technical field of wireless communication systems. Background technique [0002] In order to resist burst errors caused by channel fading and improve the robustness of the transmitted signal, the communication system needs a series of sending and receiving processing to improve the performance of the communication system, such as the interleaving processing of the sending data stream by the transmitter and the interleaving processing of the data stream by the receiver. Deinterleaving processing, that is, discretizing burst error blocks, and then correcting discrete errors through forward error correction decoding at the receiver, so as to improve the performance of the communication system. [0003] In order to further increase the transmission rate of the wireless local area network, both the IEEE8...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: the present invention solves the traditional symbol interleaving and deinterleaving method by utilizing the signaling (SIG) field information of the physical layer frame in the wireless communication system to implement dynamic symbol interleaving and deinterleaving methods based on different spatial data streams at the sending end and the receiving end. The following problems exist in the interleaving and deinterleaving methods: bandwidth-based symbol interleaving has only a fixed interleaving depth for each bandwidth, and its interleaving depth for different spatial data streams is not necessarily optimal; bandwidth-based symbol interleaving and deinterleaving methods , the interleaving depth cannot be adaptively designed according to the number of spatial data streams

Images