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

Transmission method, device, sender device and storage medium of physical control channel

A physical control channel and control channel technology, applied in the field of devices, sending end equipment and storage media, and physical control channel transmission methods, can solve the problem that the sending end cannot notify the control channel precoding information, etc., and achieve the goal of improving demodulation performance Effect

Active Publication Date: 2022-07-05
ZTE CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the CRS-based demodulation method, the receiving end needs to know the precoding matrix used to send the data to perform demodulation, and the sending end cannot notify the receiving end of the precoding information of the control channel in real time;

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
  • Transmission method, device, sender device and storage medium of physical control channel
  • Transmission method, device, sender device and storage medium of physical control channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An embodiment of the present invention provides a method for transmitting a control channel, which is used in a CRS demodulation mode, and the method includes:

[0030] Precoding is performed on the data sequence of the physical control channel by using the precoding matrix; during the processing, the precoding matrix is ​​updated every m pieces of data according to the pre-defined sequence of using the precoding matrix. in, Indicates the number of data resource units contained in a resource unit group, Indicates the number of resource element groups contained in a control channel element, Represents the number of resource unit groups contained in a physical resource block, Indicates the number of control channel elements contained in a physical resource block, Indicates the number of control channel elements contained in a control channel, Indicates the number of physical resource blocks occupied by a control channel, Indicates the number of data resource ...

Embodiment 2

[0049] Embodiments of the present invention provide a method for transmitting a control channel, which is used in a CRS and DMRS joint demodulation mode, such as figure 2 As shown, the method includes the following steps:

[0050] Step 201: Determine Qc precoding matrices from the Q available precoding matrices according to a predefined order of use of the precoding matrices to obtain a set of transmission precoding matrices for processing data.

[0051] The Q available precoding matrices represent all precoding matrices under the current configuration of the number of transmit antennas and the number of transmission layers. For example, for single-layer data transmission with 2 transmit antennas, there are 4 precoding matrices in total, and for single-layer data transmission with 4 transmit antennas, there are 16 precoding matrices in total.

[0052] In the embodiment of the present invention, by determining Qc precodings from the Q available precodings for data transmissio...

Embodiment 3

[0075] An embodiment of the present invention provides a method for transmitting a physical control channel, which is used in a CRS demodulation mode, and the method includes the following steps:

[0076] The data signals of L non-demodulation reference signals are sent at the time-frequency resource unit position of the demodulation reference signal of the physical control channel, where L is equal to 0 or L is equal to the number of time-frequency resource units of the demodulation reference signal. Wherein, the physical control channel may include EPDCCH and MPDCCH.

[0077] In an optional embodiment of the present invention, the demodulation reference signal of the physical control channel is a DMRS with 4 ports, occupying 24 REs on one PRB, and the specific RE positions are as follows: figure 2 shown.

[0078] When the physical control channel adopts CRS demodulation, the sender does not need to send DMRS. Effective utilization of the saved DMRS time-frequency resource...

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 transmission method, device, transmitting end device and storage medium for a physical control channel. The transmission method includes: using a precoding matrix to perform precoding processing on a data sequence of a physical control channel; The predefined precoding matrix is ​​used in order, and the precoding matrix is ​​updated every m data. With the method of the present invention, when the physical control channel adopts the precoding transmission mode and the cell-specific reference signal demodulation, the transmitting end does not need to notify the receiving end of the precoding matrix information, and the method of the present invention takes into account the diversity gain of the channel and the frequency hopping narrowband .

Description

technical field [0001] The present invention relates to the field of communications, and in particular, to a method, device, transmitting end device and storage medium for transmitting a physical control channel. Background technique [0002] In the Fourth Generation (4G) technology, the Enhanced Physical Downlink Control Channel (EPDCCH) and the Machine Type Communication Physical Downlink Control Channel (MPDCCH) use A demodulation method based on a demodulation reference signal (Demodulation Reference Signal, DMRS). In order to improve the demodulation performance, the MPDCCH can utilize the cell-specific reference signal (Cell-specific reference signal, CRS) in the transmitted signal, such as CRS demodulation, CRS and DMRS joint demodulation. However, in the CRS-based demodulation method, the receiving end needs to know the precoding matrix used for sending data to perform demodulation, and the transmitting end cannot notify the receiving end of the precoding informatio...

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): H04L5/00H04B7/0456
CPCH04L5/0048H04B7/0456
Inventor 边峦剑戴博
Owner ZTE CORP
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