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A method for configuring the time domain position of CSI-RS, base station and user terminal

A time-domain location and user terminal technology, applied in the field of communication, can solve problems such as high overhead

Active Publication Date: 2020-10-20
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a method for configuring the time domain position of CSI-RS, a base station, and a user terminal, so as to solve the problem of high overhead for configuring the time domain position of CSI-RS

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  • A method for configuring the time domain position of CSI-RS, base station and user terminal
  • A method for configuring the time domain position of CSI-RS, base station and user terminal
  • A method for configuring the time domain position of CSI-RS, base station and user terminal

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] see figure 1 , figure 1 is a structural diagram of a system for configuring the time domain position of CSI-RS provided by an embodiment of the present invention, as shown in figure 1 As shown, it includes a user terminal 11 and a base station 12, wherein the user terminal 11 can be a UE (User Equipment), for example, it can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (LaptopComputer), a personal digital a...

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Abstract

The embodiment of the invention provides a method for configuring a time domain location of a CSI-RS, a base station and a user terminal. The method comprises the following steps: according to the time domain location of a demodulation reference signal DMRS configured to the user terminal, selecting time domain location relationship information of a group of CSI-RS corresponding to the time domainlocation of the DMRS from the pre-obtained time domain location relationship information of at least two groups of CSI-RS; determining the time domain location of the CSI-RS and the number of symbolsoccupied by the CSI-RS, and obtaining index information of the time domain location of the CSI-RS from the selected time domain location relationship information of the CSI-RS according to the numberof symbols occupied by the CSI-RS, wherein the determined time domain location of the CSI-RS is one of the time domain location of at least one CSI-RS contained in the selected time domain location relationship information of the CSI-RS; and sending the index information of the time domain location to the user terminal. In this way, the base station only needs to send the index information of thetime domain location of the CSI-RS to the user terminal, and the user terminal can determine the time domain location of the CSI-RS according to the index information, thereby reducing the cost of configuring the time domain location of the CSI-RS.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for configuring the time domain position of a Channel State Information Reference Signal (CSI-RS), a base station and a user terminal. Background technique [0002] In the communication system, the base station needs to configure the time domain position of the CSI-RS to the user terminal. However, there are many configuration parameters of the CSI-RS, such as: including the number of CSI-RS ports, density information, and basic units. (component) information, the number of symbols (symbols) occupied by the CSI-RS, CSI-RS code division multiplexing (Code Division Multiplexing, CDM) information, and the like. In addition, there are many cases where the time domain positions of the CSI-RS are configured at the same time, and if they are configured one by one, the overhead will be very large. It can be seen that in the current communication system, there is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00
CPCH04L5/0048H04L5/0057H04L5/0078H04L5/0092
Inventor 施源孙鹏丁昱
Owner VIVO MOBILE COMM CO LTD