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Phase-tracking reference signal (PTRS) transmission method, communication device, and storage medium

A technology of phase tracking and transmission method, which is applied in the directions of transmission path sub-channel allocation, transmission system, digital transmission system, etc., to achieve the effect of simplifying configuration operations, simple transmission, and reducing the number of configurations

Inactive Publication Date: 2019-01-15
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the embodiment of the present invention expects to provide a PTRS transmission method, communication device and storage medium to solve the problem of how to send PTRS and how to send PTRS easily

Method used

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  • Phase-tracking reference signal (PTRS) transmission method, communication device, and storage medium
  • Phase-tracking reference signal (PTRS) transmission method, communication device, and storage medium
  • Phase-tracking reference signal (PTRS) transmission method, communication device, and storage medium

Examples

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Effect test

example 1

[0127] This example proposes a method of jointly scheduling and transmitting the antenna port for transmitting DMRS and the antenna port for transmitting PTRS adaptively according to the channel state information. The key is:

[0128] For the multiple-input multiple-output (SU-MIMO) transmission scenario of single-user equipment with one or more transmitting panels, adaptively select the best joint transmission of the antenna port for transmitting DMRS and the antenna port for transmitting PTRS. The transmission scenario may include: independent beamforming of transmitting panels and joint beamforming between transmitting panels.

[0129] For downlinks:

[0130] The base station uses the channel quality index (Channel Quality Index, CQI), for example, obtains it through terminal feedback, and / or uses some characteristics of the uplink channel estimation value according to the channel reciprocity, (for example, using the existing references such as the uplink SRS signal, the ...

example 1

[0158] One PTRS uses DMRS or the like to transmit the M antenna ports with the best transmission quality of the specific reference signal to transmit at the same time. Usually one local oscillator corresponds to one PTRS antenna port.

[0159]

[0160] In this example, one PTRS corresponds to one PTRS antenna port, and the antenna port parameters of the PTRS antenna port are consistent with the antenna port parameters of the best M antenna ports for transmitting DMRS.

[0161] Obviously, in the above table, one PTRS antenna port corresponds to M DMRS antenna ports, and the one PTRS antenna port will use the M DMRS antenna ports to send the PTRS.

example 2

[0163] One PTRS antenna port is only associated with one antenna port that transmits and sends DMRS. Here, the antenna port 0 that transmits and sends DMRS is taken as an example (note, it can also be other antenna ports that transmit and send DMRS)

[0164]

[0165]

[0166] In this example, one PTRS antenna port only corresponds to one DMRS antenna port, and obviously only one DMRS antenna port is used for sending PTRS.

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Abstract

The embodiment of the present invention discloses a PTRS transmission method, a communication device, and a storage medium. The PTRS transmission method includes: selecting N antenna ports, from L antenna ports that transmit a specific reference signal, to transmit a PTRS, wherein L is a positive integer and the N is a positive integer not greater than the L.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a phase-tracking signal (Phase-Tracking Reference Signal, PTRS) transmission method, communication equipment and storage medium. Background technique [0002] The fifth generation (5G) will support full-band access for both low and high frequencies. The low frequency here may be a carrier with a frequency lower than 6Ghz; the high frequency may be a carrier with a frequency not lower than 6Ghz. However, the problem of phase noise at high frequencies is very prominent. 5G specifically introduces PTRS for estimation and compensation of phase noise, carrier frequency offset, and Doppler offset. However, how to send the PTRS has not yet been defined, and how to send the PTRS simply is a problem to be solved urgently in the prior art. Contents of the invention [0003] In view of this, the embodiment of the present invention expects to provide a PTRS transmis...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04B7/06
CPCH04B7/0617H04B7/0626H04L5/0048
Inventor 钟科童辉
Owner CHINA MOBILE COMM LTD RES INST
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