Demodulation reference signal transmission method, network side equipment and user equipment

A technology for demodulating reference signals and network-side equipment. It is applied in the directions of multiple use of transmission paths, transmission systems, digital transmission systems, etc., and can solve problems such as the insufficiency of the number of ports and the long code length of the NOMA overload rate.

Active Publication Date: 2020-03-17
CHINA MOBILE COMM LTD RES INST +1
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Problems solved by technology

[0008] The purpose of the present invention is to provide a demodulation reference signal transmission method, network side equipment and user equipment, which are used to solve the problem of DMRS transmission in the prior art. The problem of scene requirements

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  • Demodulation reference signal transmission method, network side equipment and user equipment
  • Demodulation reference signal transmission method, network side equipment and user equipment
  • Demodulation reference signal transmission method, network side equipment and user equipment

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Embodiment Construction

[0154] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0155] The transmission method of the demodulation reference signal DMRS described in the embodiment of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (Global System of Mobile communication, GSM) system, code division multiple access (CodeDivision Multiple Access, CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Universal Mobile Telecommunications System, UMTS) and other current communication systems, especially can be applied to the future fifth generation mobile communication technology (5G) system.

[0156] In particular, the technical solutions of the embodiments of the present invention...

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Abstract

The invention provides a demodulation reference signal transmission method, network side equipment and user equipment. The method comprises the following steps: configuring a mode of mapping a DMRS sequence to a frequency domain resource position; and according to a mode of mapping the configured DMRS sequence to the frequency domain resource position, DMRS transmission is carried out. According to the transmission method, configuration is carried out by mapping the DMRS sequence to the frequency domain resource position, so that the problem that the number of configured ports cannot meet thescene requirement of relatively large NOMA overload rate or relatively long code length in DMRS transmission in the prior art can be solved.

Description

technical field [0001] The present invention relates to the field of wireless technology, in particular to a transmission method of a demodulation reference signal, network side equipment and user equipment. Background technique [0002] When applying Non-Orthogonal Multiple Access (NOMA) technology in massive Machine Type of Communication (mMTC), also known as the large-scale Internet of Things, the orthogonal demodulation reference signal The requirements for the number of (Demodulation Reference Signal, DMRS) ports are shown in the following table. It can be seen that as the code length increases, the overload rate increases, and the requirements for the number of orthogonal DMRS ports gradually increase. [0003] [0004] Currently, in New Radio (NR) technology, front-end DMRS configurations include configuration type 1 and configuration type 2, where the maximum number of orthogonal DMRS ports that can be supported in NR are: [0005] Configuration type 1 can be con...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048
Inventor 李岩王飞
Owner CHINA MOBILE COMM LTD RES INST
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