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

A multi-user hybrid beamforming method for 5g C-RAN

A hybrid beam and multi-user technology, applied in diversity/multi-antenna systems, space transmit diversity, electrical components, etc., to achieve the effect of reducing complexity, low loss, and overcoming electronic bottlenecks

Active Publication Date: 2022-04-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a 5G C-RAN-oriented multi-user hybrid beamforming method, which deploys all the computing units and control units of the entire system on the CU / DU side, which can reduce the complexity of the AUU Degree and cost, to meet the needs of ultra-dense deployment of AAU in 5G C-RAN

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 multi-user hybrid beamforming method for 5g C-RAN
  • A multi-user hybrid beamforming method for 5g C-RAN
  • A multi-user hybrid beamforming method for 5g C-RAN

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0064] figure 1 It is an implementation flowchart of a 5G C-RAN-oriented multi-user hybrid beamforming method of the present invention.

[0065] In this example, if figure 1 As shown, a kind of 5G C-RAN-oriented multi-user hybrid beamforming method of the present invention comprises the following steps:

[0066] S1. Hybrid precoding system configuration

[0067] to have N s The transmitter configuration M of the hybrid precoding system with multi-user fully connected t Antenna and N t RF RF links, the receiving end of which is equipped with N r RF RF links and M r root antenna; the hybrid precoding system with multi-user fully connected structure serves Nu users, and each user receives data streams, the specific relationship is: N s ≤N t RF ≤M t ,

[0068] Such as figure 2 As shown, in this embodiment, 9 antennas and 3 radio frequency links are configured for the transmitting end of the hybrid beamforming system with a multi-user fully connected structure, a...

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

The invention discloses a 5G C-RAN-oriented multi-user hybrid beamforming method. First, a pre-designed optical wavelength matrix is ​​generated through a series of optical carrier mapping with fixed wavelength intervals, and then the optical true delay is introduced by the optical wavelength matrix. Finally, a delay matrix is ​​formed, which is defined as Optical True Delay Pool (OTTDP); finally, based on the OTTDP, multi-user hybrid beamforming based on Optical True Delay Pool is realized, and the hybrid beamforming scheme can be used in the radio frequency chain When the number of channels is greater than the number of users, all radio frequency links are used to improve the spectral efficiency of the system.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and more specifically, relates to a 5G C-RAN-oriented multi-user hybrid beamforming method. Background technique [0002] Mobile communication is one of the most important infrastructures in the information society. With the implementation of the "Broadband China" strategic plan, broadband has become a national strategic public infrastructure. Accelerating the research and commercialization of 5G is crucial to driving economic transformation and upgrading. The new services emerging in 5G require large bandwidth. Therefore, improving spectral efficiency is a basic requirement for 5G and next-generation mobile communications. [0003] As the key technologies of 5G, millimeter wave communication and massive multiple-input-output (MIMO) technology have great potential in improving various performance indicators of 5G systems. Two types of conventional MIMO beamforming implementations...

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): H04B7/06H04B7/0456
CPCH04B7/0617H04B7/0456
Inventor 张崇富杨牧川黄欢易子川
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA