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

Transmitting method and device of channel status information reference signal and receiving method and device of channel status information reference signal

A technology for channel state information and reference signals, applied in the fields of receiving methods and devices, and methods and devices for transmitting channel state information reference signals, can solve the problems of not providing technical solutions and the like

Active Publication Date: 2012-03-14
CHINA MOBILE COMM GRP CO LTD
View PDF1 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there is no specific technical solution given in the prior art on how the base station transmits CSI-RS in a Multimedia Broadcast Single Frequency Network (MBSFN, Multimedia Broadcast Single Frequency Network) subframe. How does a user terminal receive CSI-RS in an MBSFN subframe? -RS, no specific technical solution is given in the prior art

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
  • Transmitting method and device of channel status information reference signal and receiving method and device of channel status information reference signal
  • Transmitting method and device of channel status information reference signal and receiving method and device of channel status information reference signal
  • Transmitting method and device of channel status information reference signal and receiving method and device of channel status information reference signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The main realization principles, specific implementation modes and corresponding beneficial effects of the technical solutions of the embodiments of the present invention will be described in detail below in conjunction with each accompanying drawing.

[0033] In order to support multiple-input-multiple-output (MIMO, Multiple-Input-Multiple-Output) transmission, when the base station sends CSI-RS to the user terminal, it can send CSI-RS based on two CSI-RS ports. At this time, the base station and the user terminal The transmitted data stream is 2 data streams, or the CSI-RS can be sent based on 4 CSI-RS ports. At this time, the data stream transmitted between the base station and the user terminal is 4 data streams, and it can also be based on 8 CSI-RS ports The port sends the CSI-RS, and at this time, the data streams transmitted between the base station and the user terminal are 8 data streams.

[0034] In the embodiment of the present invention, 2 CSI-RS ports, 4 CSI-...

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 a transmitting method and device of a channel status information reference signal and a receiving method and device of the channel status information reference signal. The method comprises the steps of: respectively ensuring a crime scene investigation-remote sensing (CSI-RS)-carried root explorer (RE) in the REs which are included by each permeable reactive barrier (PRB) of a multicast single frequency network (MBSFN) subframe and except the RE which carries a physical downlink control channel (PDCCH), a computer reservation system (CRS) and a data management-remote sensor (DM-RS) aiming at each cell; mapping CSI-RS which needs to be transmitted to the cell into the ensured RE; and transmitting the MBSFN subframe to a plurality of user terminals in each cell. The invention provides a specific technical solution through which a base station transmits the CSI-RS in the MBSFN subframe and the user terminals receive the CSI-RS in the MBSFN subframe.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a channel state information reference signal sending method and device, and a receiving method and device. Background technique [0002] A reference signal (Reference Signal, RS) is a known signal provided by a base station and sent to a user terminal for the user terminal to perform channel estimation or channel measurement. At present, four types of RS have been defined in the 3rd Generation Partnership Project (3GPP, 3rd Generation partnership project): Common Reference Signal (CRS, Common Reference Signal) of Release 8 (R8, Release 8), dedicated to R8 Reference signal (DRS, Dedicated Reference Signal), Demodulation Reference Signal (DM-RS, Demodulated Reference Signal) of Release 10 (R10, Release 10) and Channel State Information Reference Signal (CSI-RS, Channel State Information Reference) of R10 Signal). [0003] In an Orthogonal Frequency Division M...

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): H04W4/06H04W72/04
Inventor 史志华徐晓东刘建军王启星刘光毅
Owner CHINA MOBILE COMM GRP 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