Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Frequency control array base station cooperative transmission method for high-speed mobile users

A cooperative transmission, high-speed mobile technology, applied in the field of communication, can solve problems such as high implementation cost

Active Publication Date: 2020-06-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the beam shape of the phased array does not change with time, the existing method using the phased array needs to constantly change the parameters of the phase shifter to ensure that the beam is concentrated on the target user position, thereby providing continuous and effective services, making the implementation cost high

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
  • Frequency control array base station cooperative transmission method for high-speed mobile users
  • Frequency control array base station cooperative transmission method for high-speed mobile users
  • Frequency control array base station cooperative transmission method for high-speed mobile users

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] Such as figure 1 As shown, the present invention provides a frequency control array base station cooperative transmission method for high-speed mobile users, and its implementation method is as follows:

[0046] S1. Randomly initialize the frequency control array frequencies and base station activation parameters carried by K base stations And let i=1, k=1, m=1, wherein, m is the mth antenna, i is the number of iterations, K is the number of base stations, is a vector with M rows and 1 column composed of the respective frequencies of the M antennas of the k-th base station, b k is the control parameter of the activation state of the kth base station, and b k ≥0, M is the number of antennas of a base station;

[0047] S2. According to the frequency control array at t s Beam gain at any time, calculate and get the item cos[2π(f k,m τ k,m,s -f l,n τ l,n,s )] derivative of and determine the derivative Whether it is not equal to zero, if so, then enter step S...

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 provides a frequency control array base station cooperative transmission method for high-speed mobile users. By designing the frequency offset of the frequency control array, the generated wave beam peak value moves along with the movement track of a high-speed user at any time, the average wave beam gain of the user is maximized within a certain time period, and the service qualityis higher compared with the waveform of the phased array which does not change along with time. By optimizing an activated base station, the service quality and the base station maintenance cost are balanced, the activated base station is selected while the base station maintenance cost is reduced, and the service quality is better than that of a randomly activated base station. According to the method, the time dependence of the frequency control array is utilized, the frequency deviation of the frequency control array is optimally designed, the base station is activated, the wave beam peak value automatically moves along with the movement track of the high-speed user, and the service quality is improved. Meanwhile, implementation cost is reduced, and base station maintenance cost is balanced.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a frequency control array base station cooperative transmission method for high-speed mobile users. Background technique [0002] Millimeter waves with abundant available spectrum resources are an effective choice for next-generation wireless communications. However, compared with low-frequency communication, the greater path transmission loss leads to millimeter-wave communication with high directional transmission characteristics, and array technology is often used to compensate for transmission loss, thereby achieving the purpose of improving communication quality. In the face of high-speed users with fixed and known trajectories, such as rail transit systems such as bullet trains and high-speed rail, most of the existing methods to improve user communication quality use phased arrays. By designing the parameters of the phase shifter, there is a phase between...

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
IPC IPC(8): H04B7/022
CPCH04B7/022
Inventor 吴薛晗林静然邵怀宗利强
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com