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

Interference eliminating method combining base station and user association

A technology of interference cancellation and joint base station, applied in the field of communication, to achieve the effect of increasing the reachable degree of freedom, expanding the scope of application, and improving the reachable degree of freedom

Active Publication Date: 2016-08-10
XIDIAN UNIV
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this scheme is only suitable for scenarios where there is a fixed association between the base station and the user

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
  • Interference eliminating method combining base station and user association
  • Interference eliminating method combining base station and user association
  • Interference eliminating method combining base station and user association

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The technical solutions and effects of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] refer to figure 1 , the implementation steps of the present invention are as follows:

[0038] Step 1, set up the system model

[0039] refer to figure 2, the system model set in the present invention is a multi-cell MIMO multiple access uplink network, which includes G base stations and J users, and there is a backhaul link between the base stations, and the base station receives the signal of the cell It can be transmitted to other base stations through the backhaul link. The association between the base station and the user is not fixed. The number of antennas of each base station and user is M, and the data stream sent by each user is d, d∈{1, 2,...M}, the kth base station receives N k The data flow sent by the user, and the jth user who sends the data flow to the base station k is denoted as (k,j), where k...

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 an interference eliminating method combining base station and user association, and the method mainly solves the problem that conventional interference elimination technology only solves the freedom degree problem of a system with fixed base station and user association. The method includes the steps of setting a system model, converting a system freedom degree maximization problem into an optimization model and solving the optimization model, determining the optimal base station and user association relation and maximal freedom degree according to the optimization model, and conducting interference elimination at the base station terminal when the base station and user association relation is optimal. The application scope is wide, the maximal possible freedom degree is improved, and interference is effectively eliminated. Association between the base station and users is any multi-cell MIMO multiple-access uplink network.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an interference elimination method, which can be used in a multi-cell MIMO multiple access uplink network where the association between a base station and a user is arbitrary. Background technique [0002] In a multi-cell MIMO wireless network, as the number of users and user demands continue to increase, the interference from other cells between the base station and users during data transmission will also increase, which seriously affects the quality of communication. Therefore, an effective interference elimination scheme becomes extremely important. In order to achieve interference elimination to a great extent, an extremely effective method is to perform interference alignment before interference elimination. Through alignment, the interference is compressed into a small-dimensional space, and then interference elimination is performed on this small-dimensi...

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): H04J11/00
CPCH04J11/0026
Inventor 刘伟蔡静李建东黄鹏宇刘勤
Owner XIDIAN UNIV
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