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

Method and device for antenna failure compensation

A technology of antennas and the number of antennas, applied in diversity/multi-antenna systems, wireless communication, space transmit diversity and other directions, can solve problems such as system performance degradation, and achieve the effect of improving performance

Active Publication Date: 2020-04-10
ZTE CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the antenna fails, the system performance will be severely degraded

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
  • Method and device for antenna failure compensation
  • Method and device for antenna failure compensation
  • Method and device for antenna failure compensation

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0050] Assuming that the two antennas of the communication system are normal, the specific implementation mode 1 is as follows.

[0051] Step 101: nodeB performs channel estimation on the pilot symbols received by the two antennas respectively, and obtains the channel estimation value of the two time slots of the first antenna as H LS (k,1,0) and H LS (k,1,1), the channel estimation value of the two time slots of the second antenna is H LS (k,2,0) and H LS (k,2,1), where k is the carrier index.

[0052] Step 102: nodeB performs MMSE filtering on the channel estimates of the two antennas respectively, and calculates the noise energy NI of the two antennas through the channel estimates before and after filtering 1 and NI 2 . The noise function NI of the two antennas calculated according to step 302 1 = 10000 and NI 2 =12000.

[0053] Step 103: nodeB calculates the noise matrix, and uses the noise energy of each antenna to correct the noise matrix. noise matrix R nn Est...

specific Embodiment approach 2

[0067] Assuming that two antennas in the communication system are abnormal, the specific implementation mode 2 is as follows.

[0068] Step 101: nodeB performs channel estimation on the pilot symbols received by the two antennas respectively, and obtains the channel estimation value of the two time slots of the first antenna as H LS (k,1,0) and H LS (k,1,1), the channel estimation value of the two time slots of the second antenna is H LS (k,2,0) and H LS (k,2,1), where k is the carrier index.

[0069] Step 102: nodeB performs MMSE filtering on the channel estimates of the two antennas respectively, and calculates the noise energy NI of the two antennas through the channel estimates before and after filtering 1 and NI 2 . The noise function NI of the two antennas calculated according to step 302 1 = 8000 and NI 2 =300000.

[0070] Step 103: nodeB calculates the noise matrix, and uses the noise energy of each antenna to correct the noise matrix. noise matrix R nn Estim...

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 in an embodiment of the present invention is an antenna failure compensation method, the method comprising: performing a channel estimation on a received pilot symbol to obtain a channel estimation value; acquiring noise energy of each antenna based on the channel estimation value; correcting a calculated noise matrix based on the noise energy; and equalizing received data according to the corrected noise matrix. Also disclosed in embodiments of the present invention are an antenna failure compensation device and computer storage medium.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and device for antenna failure compensation. Background technique [0002] Long Term Evolution (LTE, Long Term Evolution) is a long-term evolution result of the Universal Mobile Telecommunications System (UMTS, Universal Mobile Telecommunications System) technical standard formulated by the Third Generation Partnership Project (3GPP, The3rd Generation Partnership Project). Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) technology has attracted widespread attention as a high-speed transmission technology with high spectrum utilization efficiency and good anti-multipath performance. Multi-antenna technology is one of the core technologies of the LTE system. Combined with OFDM technology, it can well realize the joint processing and scheduling of multi-dimensional signals, and greatly improve the flexibility and transmissi...

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): H04W24/04
CPCH04W24/04H04B7/04H04L25/02
Inventor 吴昊王美英
Owner ZTE CORP