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

Communication method and device

A communication method and technology of a communication device are applied in the directions of signaling allocation, transmission path sub-channel allocation, radio transmission system, etc., which can solve the problems of difficulty in adapting to dynamic changing channel conditions, affecting the performance of compressed codebooks, etc., so as to save configuration overhead. , reduce configuration complexity and improve work efficiency

Active Publication Date: 2020-10-09
HUAWEI TECH CO LTD
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fixed scale coefficient method is difficult to adapt to dynamically changing channel conditions, and will affect the performance of the compressed codebook

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
  • Communication method and device
  • Communication method and device
  • Communication method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0075] In order to facilitate understanding of the embodiments of the present application, terms involved in the embodiments of the present application are briefly described first.

[0076] 1. Precoding technology: The sending device (such as a network device) can process the signal to be sent with the help of a precoding matrix that matches the channel resource when the channel state is known, so that the precoded signal to be sent is consistent with the channel Adaptation, so that the receiving device (such as a terminal device) reduces the complexity of eliminating the influence between channels. Therefore, through precoding processing on the signal to be transmitted, the quality of the received signal (such as a signal to interference plus noise ratio (signal to interference plus noise ratio, SINR), etc.) is improved. Therefore, the use of precoding technology can help improve the transmission performance of the sending device and multiple receiving devices on the same tim...

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 application provides a communication method and device. The method comprises the following steps that: terminal equipment receives a first parameter from network equipment, wherein the first parameter is used for determining indication information of a first precoding matrix and a second parameter, and the second parameter is used for determining the indication information of the second precoding matrix; and then, the terminal equipment sends indication information of the second precoding matrix to the network equipment. The method can be suitable for the terminal equipment to report the indication information of the precoding matrix when the rank indication value is 3 or 4.

Description

technical field [0001] The present application relates to the field of wireless communication, and in particular to a communication method and device. Background technique [0002] Multiple input and multiple output (MIMO) technology can significantly improve the performance of a wireless communication system by deploying multiple antennas on network devices and terminal devices. For example, in a diversity scenario, MIMO technology can effectively improve transmission reliability; in a multiplexing scenario, MIMO technology can greatly improve transmission throughput. [0003] For a frequency division duplexing (frequency division duplexing, FDD) based wireless communication system, an uplink (uplink, UL) and a downlink (downlink, DL) are separated. Therefore, the terminal device needs to feed back a downlink precoding matrix or a precoding matrix index (Precoding Matrix Index, PMI) to the network device, so that the network device can generate the precoding matrix. Speci...

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 Applications(China)
IPC IPC(8): H04B7/0413H04B7/0456H04L5/00
CPCH04B7/0413H04B7/0456H04L5/0053H04L5/0091H04B7/0486H04B7/063H04B7/0639H04B7/0482
Inventor 高翔刘鹍鹏
Owner HUAWEI TECH CO LTD
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