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Signal processing method and device and communication equipment

A technology of signal processing and communication equipment, applied in the field of communication, can solve problems such as excessive resource consumption

Active Publication Date: 2020-10-30
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a signal processing method, device and communication equipment to solve the problem of excessive resource consumption when supporting multiple functions in NRV2X multi-port direct link communication in the prior art

Method used

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  • Signal processing method and device and communication equipment
  • Signal processing method and device and communication equipment
  • Signal processing method and device and communication equipment

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0365] Example 1 (using different time-frequency resources - different time domain resources and / or different frequency domain resources to differentiate ports):

[0366] MP-RS occupies the first symbol, and distinguishes ports through different comb teeth, and each comb tooth corresponds to a port. Such as Figure 5 As shown (a in the figure represents a subframe, and b represents a preset working bandwidth), the blank square or filled square on the first symbol occupies one symbol in the time domain and one subcarrier in the frequency domain. Blank squares represent port 1 of the MP-RS, and filled squares represent port 2 of the MP-RS. The terminal at the receiving side can obtain related information of the two ports through the sequences mapped on the two different ports, including automatic gain control information, frequency offset estimation information, channel state measurement information, channel estimation information, and the like. Since the MP-RS maps different ...

example 2

[0368] Example 2 (using the same time-frequency resources, different sequences to distinguish ports):

[0369] MP-RS occupies the first symbol and distinguishes ports through different sequences. Each sequence corresponds to a port. In order to reduce interference between two ports, the sequences used by the two ports can be low-correlation. Such as Figure 6 As shown (a in the figure represents a subframe, and b represents a preset working bandwidth), the blank square on the first symbol occupies one symbol in the time domain, and occupies one subcarrier in the frequency domain. Blank squares represent port 1 and port 2 of the MP-RS. The terminal at the receiving side can obtain related information of the two ports through the sequences mapped on the two different ports, including automatic gain control information, frequency offset estimation information, channel state measurement information, channel estimation information, and the like. Since the MP-RS maps different por...

example 3

[0371] Example 3 (using the same time-frequency resources, the same sequence, and different cyclic shifts to distinguish ports):

[0372] MP-RS occupies the first symbol, and the ports can be distinguished by different cyclic shifts of the same sequence, each cyclic shift corresponds to a port, in order to reduce the interference between two ports, the cycle used by the two ports Shifts can be low correlation. Such as Figure 7 As shown (a in the figure represents a subframe, and b represents a preset working bandwidth), the blank square on the first symbol occupies one symbol in the time domain, and occupies one subcarrier in the frequency domain. Blank squares represent port 1 and port 2 of the MP-RS. The terminal at the receiving side can obtain related information of the two ports through the sequences mapped on the two different ports, including automatic gain control information, frequency offset estimation information, channel state measurement information, channel es...

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PUM

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Abstract

The invention provides a signal processing method and device and communication equipment. The method comprises the steps that first communication equipment transmits a first reference signal to secondcommunication equipment, wherein the first reference signal is used for automatic gain control measurement of at least two ports of the first reference signal and at least one of the following operations: frequency offset estimation, measuring channel state information and channel estimation. According to the method disclosed in the scheme, the problem of excessive resource consumption when multiple functions are supported in NR V2X multi-port straight-through link communication in the prior art is well solved.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a signal processing method, device and communication equipment. Background technique [0002] In the existing LTE (Long Term Evolution) V2X (Intelligent Connected Vehicle Technology) technology (version Rel-14 / Rel-15LTEV2X technology), the duration of the terminal UE for automatic gain control or guard interval is fixed as one symbol, In order to complete the adjustment of the signal power entering the analog-to-digital converter ADC, and complete the conversion between sending and receiving. The demodulation reference signal DMRS used for data demodulation also occupies 4 symbols in one subframe, and the overhead of the reference signal is relatively high. With the emergence of 5G NR (New Radio Access Technology), the Internet of Vehicles technology will be further developed to meet the needs of new application scenarios. 5G NR supports flexible subcarrier spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L25/02H04L27/00H04W52/32H04W52/52
CPCH04L5/0048H04W52/325H04W52/52H04L25/0226H04L25/0224H04L27/0014H04L2027/0026H04L25/022H04B17/318H04L27/261H04L5/0051H04L5/001H04L5/0057H04L27/2657H04L27/2675H04W24/08
Inventor 任晓涛赵锐
Owner DATANG MOBILE COMM EQUIP CO LTD
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