Unlock instant, AI-driven research and patent intelligence for your innovation.

A user pairing method and access point

A user pairing and access point technology, applied in the communication field, can solve the problems of channel difference, low transmission efficiency, and unsatisfactory MU-MIMO transmission performance, and achieve the effects of improving performance, reducing interference, and reducing channel measurement overhead.

Active Publication Date: 2021-08-03
HUAWEI TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the AP uses distributed small-angle antennas, the channel difference between each antenna of the AP is obvious. If the channel difference between different antennas of the AP is not considered, the MU-MIMO transmission in the WLAN system with distributed small-angle antennas The performance is not ideal and the transmission efficiency is low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A user pairing method and access point
  • A user pairing method and access point
  • A user pairing method and access point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to facilitate understanding, some descriptions of concepts related to the present application are given by way of example for reference. As follows:

[0038] MU-MIMO: A space division multiplexing technology proposed in 802.11ac, dedicated to improving resource utilization efficiency. In traditional MIMO, such as 4×4 MIMO, 8×8 MIMO, the terminal device and the AP transmit one-to-one, which requires the number of antennas of the terminal device to be the same as the number of antennas of the AP to give full play to the advantages of MIMO, which is difficult to achieve for WiFi terminals ( Terminals such as smartphones and tablets only have 1 or 2 antennas). MU-MIMO performs channel precoding on the AP side, and separates service streams of different users at the transmitting end, so that the AP can send service streams to multiple terminals at the same time.

[0039]Channel correlation: Each row of the channel matrix can be represented as a complex vector. Th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Embodiments of the present application provide a user pairing method and an access point, which relate to the communication field and can improve MU-MIMO transmission efficiency in a WLAN system with distributed small-angle antennas. The method is as follows: the access point AP determines the sub-area to which the at least two STAs belong in the coverage area of ​​the distributed small-angle antenna according to the uplink signals sent by the at least two STAs; The sub-areas and the channel measurement overhead are paired with at least two STAs. The embodiment of the present application can be used for MU-MIMO transmission in WLAN products to perform user pairing.

Description

technical field [0001] The present application relates to the communication field, and in particular to a user pairing method and an access point. Background technique [0002] Wireless Local Area Network (WLAN) is a wireless communication technology that works in an unlicensed frequency band, that is, an industrial / scientific / medical (Industrial Scientific Medical, ISM) frequency band. Due to its simple planning, convenient installation, easy expansion and peak air interface rate, WLAN has gradually become the main technology in the wireless trend of enterprise campuses. However, since the WLAN air interface access technology adopts a competition mechanism based on Carrier Sense Multiple Access with Collision Avoidance (CSMA / CA), all nodes need to obtain the right to use the channel through competition. And monopolize the channel for a period of time, which will lead to low utilization efficiency of the channel. [0003] In response to this problem, the concept of Multipl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
Inventor 杨博杨超陈鹏袁方超
Owner HUAWEI TECH CO LTD