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Data transmission method and equipment

A data transmission method and equipment technology, which is applied in the field of communication, can solve problems such as fast signal fading, signal interference, and non-obvious multipath effects, and achieve the effect of improving transmission performance and reducing interference

Active Publication Date: 2019-07-09
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In millimeter-wave or 60GHz high-frequency scenarios, when performing SU-MIMO transmission, the signal fades rapidly during space transmission, and the multipath effect is not obvious, resulting in poor SU-MIMO performance; while in millimeter-wave or 60GHz high-frequency scenarios Next, perform downlink MU-MIMO transmission, when at least two stations (Station, STA) at the receiving end are at the same position or close to the access point (Access Point, AP) at the sending end, send to at least two STA signals interfere with each other, which will also lead to poor performance of downlink MU-MIMO

Method used

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Examples

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Embodiment Construction

[0050] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0051] figure 1 It is an exemplary schematic diagram of a wireless local area network (Wireless Local Area Networks, WLAN) 100 provided by an embodiment of the present invention. Such as figure 1 As shown, a wireless local area network 100 includes an access point (Access Point, AP) 102 and stations (Station, STA) 104-106, wherein the stations 104-106 can communicate with the access point 102 through wireless links.

[0052] Currently, standards adopted by the WLAN are Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronics Engineers, IEEE for short) 802.11 series standards. A WLAN may include multiple Basic Service Sets (BSS for short), and the nodes of the Basic Service Set are stations STA, and the stations include access point stations (Access Point, AP for short) and non-access point stations ( None Ac...

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Abstract

The invention discloses a data transmission method and equipment, relates to the technical field of communication, and particularly relates to a technology for reducing interference between signals ina wireless local area network communication system. According to the data transmission method, data streams to be sent are divided into two groups, one group of data streams is subjected to weightingoperation, so that a group of target data streams is generated, and then the group of data streams which are not subjected to the weighting operation and the group of data streams which are subjectedto the weighting operation are sent to receiving end equipment at the same time. Due to the fact that the weighting operation is carried out on one set of data streams in the two sets of data streamswhich are sent simultaneously, interference among the data streams which are sent simultaneously can be effectively reduced, and the transmission performance of the system is improved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a data transmission method and equipment. Background technique [0002] Wireless Fidelity (Wireless Fidelity, Wi-Fi) technology, that is, Wireless Local Area Network (Wireless Local Area Network, WLAN) technology is becoming more and more mature, and the transmission speed provided is getting higher and higher. It has been used more and more in commercial and commercial environments. The 802.11ay standard is the next-generation evolution technology of 802.11ad 60GHz WLAN. It also works in the high frequency band of 60 gigahertz (GHz), and its main goal is to increase the peak rate from 7 gigabits per second (Gbps) Boost to greater than 20Gbps. In addition, the 802.11ay standard also hopes to expand the application range of WLAN technology. For example, in addition to continuing to support 802.11ad point-to-point short-distance wireless high-definition audio and v...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04B7/0452H04B7/06H04B7/08H04L25/03H04L1/00
CPCH04B7/0413H04B7/0452H04B7/0615H04B7/0842H04L25/03891H04L1/0061H04L1/0057H04B7/06H04B7/08H04L1/00H04L25/03
Inventor 吴涛陈特彦
Owner HUAWEI TECH CO LTD
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