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

Cancelling crosstalk

A sample and transmitter technology, applied in the direction of reducing crosstalk, digital transmission systems, line transmission components, etc.

Active Publication Date: 2017-03-22
VIVO MOBILE COMM CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The degradation of RX sensitivity can be severe, e.g. in some frequency bands it can be greater than 10 dB

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
  • Cancelling crosstalk
  • Cancelling crosstalk
  • Cancelling crosstalk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Figure 1a and Figure 1b The problems addressed by the present disclosure are illustrated in more detail. Figure 1a The schematically presented block diagram in is a simplified presentation of a wireless communication node 100 . The wireless communication node 100 includes an antenna 101, a duplex filter 110, a low noise amplifier 120, a power amplifier 130, an RF signal circuit 140 (which may include (in Figure 1a not shown in ) analog-to-digital (A / D) and digital-to-analog (D / A) converters, variable gain amplifiers, frequency mixers, intermediate frequency (IF) and / or baseband filters, etc.). The wireless communication node 100 also includes a digital signal processing block 150, which may be implemented with a field programmable gate array (FPGA), a central processing unit (CPU), or any other suitable digital processing component.

[0026] exist Figure 1a A transmitter chain 102 and a receiver chain 104 are indicated in . In the transmitter chain 102 the signal ...

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

Cancelling crosstalk between at least one transmitter chain(298)and a receiver chain (299) in a wireless communication node makes use of a single feedback path (214) from the transmitter chain that is shared between processing of transmit signals (x) in the transmitter chain and reception signals (s) received in the receiver chain. Information in the shared feedback is used in a crosstalk model (254) to cancel crosstalk in the reception signals.

Description

technical field [0001] Embodiments herein relate to eliminating crosstalk between transmitter and receiver chains in a wireless communication node. Background technique [0002] A problem associated with radio receivers in small wireless communication devices is that radio frequency (RF) components need to be miniaturized. However, miniaturization of RF components will generally result in RF components having reduced performance in terms of noise and RF interference performance compared to non-miniaturized RF components such as components used in products such as radio base stations. Still further, RF components need to be cost-effective and power-efficient, which sets additional performance challenges. Therefore, in order to enable the use of such degraded RF components while still managing good radio performance in radio receivers, improved interference cancellation is needed. [0003] As will be illustrated in more detail below, the sensitivity in the receiver (RX) chai...

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): H04B3/32H04L5/14H04B1/525
CPCH04B1/525H04L5/1461H04B1/0475H04B3/32
Inventor K.海尼科斯基M.E.莱诺恩
Owner VIVO MOBILE COMM CO LTD
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com