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Transmission method and network equipment of demodulation reference signal

A technology of demodulation reference signal and transmission method, which is applied in the field of transmission method of demodulation reference signal and network equipment, can solve the problems of poor demodulation performance of low-latency services, etc., to ensure correct transmission, ensure demodulation performance, and realize The effect of correct transmission

Active Publication Date: 2020-08-11
VIVO MOBILE COMM CO LTD
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AI Technical Summary

Problems solved by technology

[0021] Embodiments of the present invention provide a demodulation reference signal transmission method and network equipment to solve the problem of poor demodulation performance of low-latency services caused by existing DMRS transmission methods

Method used

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  • Transmission method and network equipment of demodulation reference signal
  • Transmission method and network equipment of demodulation reference signal
  • Transmission method and network equipment of demodulation reference signal

Examples

Experimental program
Comparison scheme
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example 2

[0100] Example 2. Taking the DMRS of 2 symbols as an example, the resource mapping of the DMRS of the traffic channel is shown in Table 6 below:

[0101] Table 6

[0102]

[0103] The DMRS of the traffic channel in Table 6 will be further introduced below.

[0104] Regardless of whether the mapping type of the traffic channel is the first mapping type or the second mapping type. When the traffic channel transmits 1, 2, 3, 4 or 5 symbols, the network device does not configure the DMRS with 2 symbols for the traffic channel.

[0105] When the traffic channel transmits 6 or 7 symbols, the network device configures a DMRS with 2 symbols for the traffic channel. Wherein, when the traffic channel adopts the first mapping type, the DMRS configured by the corresponding network device for the traffic channel also adopts the first mapping type, and the network device configures a DMRS with a symbol number of 2 for the traffic channel, and the starting position of the DMRS is It is m...

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Abstract

The invention discloses a demodulation reference signal transmission method and network equipment. The method includes: according to the mapping type of the service channel, the number of transmitted symbols and the number of symbols of the demodulation reference signal DMRS, determining whether to configure a corresponding service channel for the service channel. DMRS; when it is determined to configure the corresponding DMRS for the traffic channel, configure the target number of DMRS for the traffic channel; map the target number of DMRS to the target transmission resource for transmission. The network device of the present invention determines whether to configure the corresponding DMRS for the service channel according to the mapping type of the service channel and the number of symbols transmitted by the service channel, and further configures the target number of DMRS for the service channel to ensure the demodulation of the service channel in various scenarios performance to ensure the correct transmission of data.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a transmission method and network equipment for a demodulation reference signal. Background technique [0002] Fifth generation (5 th Generation) mobile communication system supports mobile enhanced bandwidth, low latency and high reliability, and large-scale machine communication connection services. In order to meet the requirements of different services on performance indicators such as delay and reliability, the network supports time slot-based scheduling and non-slot based scheduling. Correspondingly, the mapping of the demodulation reference signal (Demodulation Reference Signal, DMRS) of the uplink and downlink traffic channels supports type A and type B. In addition, in order to adapt to different scenarios such as low frequency and high frequency, low speed and high speed, the uplink and downlink traffic channel demodulation reference signals can be c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0048H04W72/0446H04W72/20H04L5/0051H04L27/156H04W28/26
Inventor 孙晓东孙鹏马景智
Owner VIVO MOBILE COMM CO LTD
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