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A pilot configuration method, channel measurement method and communication equipment

A technology for pilot frequency configuration and configuration information, which is applied in the field of communication and can solve problems such as affecting channel measurement and the inability of a terminal to determine the location of CSI-RS time-frequency resources.

Active Publication Date: 2021-03-02
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a pilot frequency configuration, a channel measurement method and a communication device, which are used to solve the technical problem that the terminal cannot determine the position of the time-frequency resource occupied by the CSI-RS in the NR system, thereby affecting the channel measurement

Method used

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  • A pilot configuration method, channel measurement method and communication equipment
  • A pilot configuration method, channel measurement method and communication equipment
  • A pilot configuration method, channel measurement method and communication equipment

Examples

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Embodiment 1

[0066] An embodiment of the present invention provides a pilot configuration method, which can be applied to a base station, such as figure 2 As shown, the method can be described as follows.

[0067] S11: The base station determines the configuration information of the N-port CSI-RS according to the system predefined CSI-RS configuration pattern; wherein, the CSI-RS configuration pattern is used to represent at least one resource data block (Physical Resource Block, PRB) When Orthogonal Frequency Division Multiplexing OFDM symbol is the time domain unit, for the configuration of the time-frequency position of the CSI-RS RE of different ports in the time slot, the configuration information includes at least the number of ports and index parameters, and the value of the number of ports is N, the index parameter is used to indicate the time-frequency position of the resource element RE of the CSI-RS of each port in the N port in the time slot, and N is a positive integer;

[...

Embodiment 2

[0107] Based on the same inventive idea, such as Image 6 As shown, the embodiment of the present invention also provides a channel measurement method applied to a terminal, and the method can be described as follows.

[0108] S21: The terminal receives the configuration information of the N-port CSI-RS sent by the base station through signaling, and receives the CSI-RS sent by the base station according to the configuration information; wherein, the configuration information includes at least the number of ports and an index parameter, and the index parameter is used to indicate N The time-frequency position of the RE of the CSI-RS of each port in the time slot in the port, N is a positive integer;

[0109] S22: The terminal determines the time-frequency position of the RE of the N-port CSI-RS in the time slot according to the configuration information and the system predefined CSI-RS configuration pattern; wherein, the CSI-RS configuration pattern is used to represent at lea...

Embodiment 3

[0121] Based on the same inventive concept, such as Figure 7 As shown, the embodiment of the present invention also discloses a base station, which can be used to execute figure 2 The pilot frequency configuration method in the base station includes a configuration module 31 and a transmission module 32 .

[0122] The configuration module 31 can be configured to determine the configuration information of the N-port CSI-RS according to the channel state information reference signal CSI-RS configuration pattern predefined by the system; wherein, the CSI-RS configuration pattern is used to represent the PRB in one resource data block. When at least one OFDM symbol in the OFDM symbol is a time domain unit, for the configuration of the time-frequency positions of the CSI-RS REs of different ports in the time slot, the configuration information at least includes the number of ports and index parameters , the value of the number of ports is N, the index parameter is used to indica...

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Abstract

Embodiments of the present invention provide a pilot frequency configuration, a channel measurement method, and a communication device, which are used to solve the technical problem that a terminal cannot determine the position of a time-frequency resource occupied by a CSI-RS in an NR system. The pilot configuration method includes: the base station determines the configuration information of the CSI-RS of the N port according to the CSI-RS configuration pattern predefined by the system; wherein, the CSI-RS configuration pattern is used to represent when at least one OFDM symbol in one PRB In domain units, the configuration of the time-frequency positions of the REs of the CSI-RS of different ports in the time slot, the configuration information includes at least the number of ports and the index parameter, and the index parameter is used to indicate the CSI-RS of each port in the N port The time-frequency position of the resource unit RE in the time slot; the base station transmits the configuration information to the terminal connected to the base station through signaling, and transmits the CSI‑RS according to the configuration information, so that the terminal can use the configuration information and the system predefined CSI‑RS The RS configuration pattern determines the time-frequency position of the RE of the CSI-RS in the time slot, and uses the CSI-RS at the time-frequency position to perform channel measurement.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular, to a pilot frequency configuration, a channel measurement method and a communication device. Background technique [0002] MIMO (Multi-Input Multiple-Output, multiple-input multiple-output) technology, as an important physical layer multi-antenna technology for improving transmission quality and efficiency, plays an important role in a new generation of communication systems. In the new generation radio access technology (New RAT (radio access technology), NR) system or LTE (Long Term Evolution, Long Term Evolution) system supports transmit diversity, spatial multiplexing technology and beam forming (BF, Beam Forming), etc. Various MIMO techniques. [0003] In order to better utilize the advantages of MIMO technology, the pilot structure in the system has also undergone corresponding changes. Generally speaking, the downlink pilots sent by the base station in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W24/02H04W72/04
CPCH04L5/0048H04L5/0053H04W24/02H04W72/23H04W72/04H04L5/005H04L5/0094H04L5/0078H04L5/001H04W72/0446H04B7/0626H04B17/309H04L5/0057H04L5/0007H04W24/08H04W72/0453
Inventor 李辉拉盖施高秋彬陈润华苏昕
Owner DATANG MOBILE COMM EQUIP CO LTD