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A method and device for resource allocation of demodulation reference signal DMRS

A technology for demodulation reference signal and resource allocation, applied in the field of demodulation reference signal DMRS resource allocation, can solve problems such as user compatibility impact, and achieve the effect of ensuring accuracy and compatibility

Active Publication Date: 2019-06-07
CHINA MOBILE COMM GRP CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and device for demodulation reference signal DMRS resource allocation, and solve the problem that the DMRS enhancement scheme of MU-MIMO in the prior art has an impact on user compatibility

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  • A method and device for resource allocation of demodulation reference signal DMRS
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  • A method and device for resource allocation of demodulation reference signal DMRS

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Embodiment Construction

[0047] 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.

[0048] Existing communication systems, such as LTE (Long Term Evolution, long-term evolution), WiMax (Worldwide Interoperability for Microwave Access, global microwave interconnection access), 802.11n, all adopt traditional 2D MIMO technology, and its basic principle is to use the Two-dimensional spatial freedom to improve transmission quality and increase system capacity. In the context of no major breakthroughs in the current physical layer technology, how to further improve the spectrum efficiency of future wireless communication systems, the more feasible direction is to fully explore the degree of freedom in vertical space, extend the traditional 2D MIMO technology to 3D MIMO technology, and make full use of three-dimensional space degrees of freedo...

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Abstract

The invention provides a method and a device for de-modulation reference signal DMRS resource allocation, relates to the field of communication, and aims to solve the problem in the prior art that the DMRS enhancement scheme affects the compatibility to users. The method comprises the following steps: when a new user and a traditional user are paired, carrying out DMRS resource allocation for the traditional user in an original DMRS resource location; and after configuration of the traditional user, if the occupancy rate of the original DMRS resource location reaches a preset threshold, carrying out DMRS resource allocation for the new user in a preconfigured zero power channel state information reference signal ZP CSI-RS resource location. The scheme ensures the compatibility to traditional users while enhancing DMRS.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for configuring demodulation reference signal DMRS resources. Background technique [0002] Existing communication systems adopt traditional 2D MIMO (Multiple-IZPut Multiple-Output) technology, the basic principle of which is to improve transmission quality and system capacity through two-dimensional spatial degrees of freedom on the horizontal plane. With the development of antenna design architecture, in order to improve the transmission efficiency of mobile communication systems and enhance user experience, it is necessary to fully exploit the degree of freedom in vertical space, extend the traditional 2D MIMO technology to 3D MIMO technology, and make full use of the degree of freedom in three-dimensional space to improve the system performance. [0003] Compared with traditional 2D MIMO, 3D MIMO can distinguish more paired users, but the DMRS (DeModulat...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0051H04L5/006
Inventor 金婧童辉王启星侯雪颖王飞沈晓冬
Owner CHINA MOBILE COMM GRP CO LTD