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

Methods and devices for mu-mimo transmission

A multi-input, multi-output technology, applied in the field of MU-MIMO transmission, can solve the problems of occupying channel resources and high signaling overhead

Active Publication Date: 2020-11-06
HUAWEI TECH CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the multiple listening PPDUs sent by the access point and the feedback from each station need to occupy channel resources, and the signaling overhead is large

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
  • Methods and devices for mu-mimo transmission
  • Methods and devices for mu-mimo transmission
  • Methods and devices for mu-mimo transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] The technical solutions of the embodiments of the present invention can be applied to various communication systems, such as: Global System of Mobile communication (Global System of Mobile communication, referred to as "GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") system , Wideband Code Division Multiple Access (WCDMA for short) system, General Packet Radio Service (GPRS for short), Long Term Evolu...

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

Disclosed are a method and apparatus for performing MU-MIMO transmission, capable of reducing signalling overheads of a system. The method comprises: a network device determining a channel matrix on a first sub-carrier from each terminal device to the network device according to a data packet sent by each terminal device of a plurality of terminal devices; and the network device determining a downlink MU-MIMO directional matrix of the plurality of terminal devices on the first sub-carrier according to the channel matrix on the first sub-carrier from each terminal device of the plurality of terminal devices to the network device.

Description

technical field [0001] Embodiments of the present invention relate to the communication field, and more specifically, to a method and device for MU-MIMO transmission. Background technique [0002] In order to improve the data throughput of the system, a Multiple-User Multiple Input Multiple Output (MU-MIMO) technology is introduced into a Wireless Local Area Network (WLAN). In downlink MU-MIMO, an access point can send signals to multiple stations at the same time. In addition, in order to avoid mutual interference between signals sent to multiple stations, the access point can perform beamforming (Beamforming) on ​​the sent signals, so that the signal sent to a certain station can be directed to the station, while reaching other stations. The signal at the site is approximately zero. In the process of beamforming, the station can encode and modulate the data to be sent by the multiple stations to obtain N data streams; then, it can perform spatial mapping (SpatialMapping)...

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): H04B7/0452
CPCH04B7/04
Inventor 吕捷
Owner HUAWEI TECH CO LTD