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Method and device for reporting CSI-RS (Channel State Information Reference Signal)

A rule and base station technology, applied in the field of communication, can solve problems such as inaccurate CSI-RS

Inactive Publication Date: 2018-02-13
BEIJING XINWEI TELECOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to propose a method and device for reporting CSI-RS, aiming at solving the problem of inaccurate CSI-RS

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  • Method and device for reporting CSI-RS (Channel State Information Reference Signal)
  • Method and device for reporting CSI-RS (Channel State Information Reference Signal)

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Embodiment Construction

[0033] The embodiments of the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the embodiments of the present invention, rather than to limit the embodiments of the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the embodiments of the present invention.

[0034] refer to figure 1 , figure 1 It is a schematic flowchart of a method for reporting a CSI-RS provided by an embodiment of the present invention.

[0035] Such as figure 1 As shown, the method for reporting CSI-RS includes:

[0036] Step 101, the base station allocates REs for reporting CSI-RS to the mobile terminal, and the REs include time-frequency resources and / or frequency domain resources;

[0037] Preferably, the RE used to report the CSI-RS is {(t...

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Abstract

The invention discloses a method and device for reporting a CSI-RS (Channel State Information Reference Signal). The method comprises the steps that: a base station allocates REs (Resource Elements) for reporting the CSI-RS to a mobile terminal, wherein the REs comprise time-frequency resources and / or frequency-domain resources; the base station sends preset frequency hopping rules to the mobile terminal, wherein the frequency hopping rules are used for acquiring a time-domain resource position and / or a frequency-domain resource position for the mobile terminal to report the CSI-RS to the basestation, so that the mobile trminal sends a result after the CSI-RS is measured to the base station according to the REs. By CSI-RS frequency hopping, channel characteristics can be reflected better,so that a BS side masters more CSI information to carry out resource scheduling better.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a method and device for reporting CSI-RS. Background technique [0002] At present, in order to pursue a higher transmission rate in a communication system, a common method is to increase the number of transceiver antennas. The increase in the number of antennas can increase the spatial resolution of the transmitting and receiving end, and at the same time, it also increases the degree of freedom of sending data scheduling. For example, transmit diversity or multiplexing can be flexibly adopted, using Single user multi-input multi-output (SUMIMO) or Multi-user multi-input multi-output (MUMIMO) , Closed-loop transmission or (semi-)Open loop transmission. However, the prerequisite for making full use of these benefits is that the sender has a better perception of the channel. [0003] For Time Division Duplex (TDD), uplink and downlink recipr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0007H04L5/0051H04W72/23
Inventor 董付现
Owner BEIJING XINWEI TELECOM TECH
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