CSI information reporting method, CSI information receiving method, and communication device

A technology of information reporting and information part, which is applied in the computer field and can solve problems such as no solution

Active Publication Date: 2019-03-15
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the MIMO system, after the terminal measures the downlink channel, it can calculate the channel state information (Channel State Information, CSI), and then pass the CSI information through the uplink channel, such as the physical uplink

Method used

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  • CSI information reporting method, CSI information receiving method, and communication device
  • CSI information reporting method, CSI information receiving method, and communication device
  • CSI information reporting method, CSI information receiving method, and communication device

Examples

Experimental program
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Effect test

Embodiment 1

[0082] An embodiment of the present invention provides a method for reporting CSI information, which can be applied to a terminal to enable the terminal to perform data transmission with a base station, such as image 3 As shown, the method can be described as follows.

[0083] S11: The terminal receives the uplink channel resource configuration signaling and / or DMRS configuration signaling sent by the base station, and determines the mapping symbol set according to the uplink channel resource configuration signaling and / or DMRS configuration signaling; wherein, the DMRS configuration signaling is used to indicate The number of DMRS configured by the system for the uplink channel, and the time-frequency position of the OFDM symbol occupied by each DMRS in the time-frequency resource carrying the uplink channel. The uplink channel resource configuration signaling is used to indicate the uplink channel For the occupied time-frequency resource, the set of mapped symbols is a set ...

Embodiment 2

[0132] Such as Figure 6 As shown, the embodiment of the present invention provides a method for receiving CSI information, which can be applied to a base station, and the method includes the following steps:

[0133] S21: The base station sends uplink channel configuration signaling and / or DMRS configuration signaling to the terminal; wherein, the DMRS configuration signaling is used to indicate the number of DMRS configured by the system for the uplink channel, and the time-frequency resource of each DMRS for carrying the uplink channel The time-frequency position of the orthogonal frequency division multiplexing OFDM symbol occupied in the , and the uplink channel resource configuration signaling is used to indicate the time-frequency resource occupied by the uplink channel.

[0134] Specifically, the uplink channel configuration signaling and / or DMRS configuration signaling may instruct the terminal to configure a pre-DMRS and a set of additional DMRS on the PUSCH channel,...

Embodiment 3

[0141] Based on the same inventive concept, an embodiment of the present invention provides a terminal, which can be used to execute such as image 3 The method for reporting CSI information shown, such as Figure 7 As shown, the terminal includes a receiver 31 , a processor 32 and a transmitter 33 .

[0142] Considering that in practical applications, the receiver 31 and the transmitter 32 are usually set in the same device, such as a transceiver, therefore Figure 7 Take these two components as components in the transceiver as an example.

[0143] In addition, the terminal may also include a memory 34, Figure 7 shown in dotted line. The memory 34 can be used to store various data in the terminal, such as storing CSI information and the like.

[0144] The receiver 31 may be configured to receive uplink channel resource configuration signaling and / or demodulation reference signal DMRS configuration signaling sent by the base station, and determine a mapping symbol set acc...

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PUM

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Abstract

The embodiment of the invention provides a CSI information reporting method, a CSI information receiving method, and a communication device for providing a scheme for mapping CSI information to an uplink channel and transmitting the CSI information for a terminal in an NR system. The method comprises the following steps: receiving, by the terminal, uplink channel resource configuration signaling and/or DMRS configuration signaling sent by a base station, and determining a mapping symbol set, wherein the DMRS configuration signaling is used for indicating the number of DMRSs configured by thesystem to an uplink channel and a time-frequency position of an occupied OFDM symbol, the uplink channel resource configuration signaling characterizes a time-frequency resource of the uplink channel,the mapping symbol set is a set of OFDM symbols adjacent to an OFDM symbol; and measuring, by the terminal, a downlink channel, calculating channel state information CSI, encoding the CSI information, and mapping an information part comprising rank indication RI information to an RE of at least one OFDM symbol in the mapping symbol set for transmission.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a method for reporting and receiving CSI information and a communication device. Background technique [0002] MIMO (Multi-Input Multiple-Output) technology, as an important physical layer multi-antenna technology for improving transmission quality and efficiency, plays an important role in the new generation communication system. In the new generation of wireless 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 technologies. [0003] In order to give full play to 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 include demodulation pilots (that is, demodula...

Claims

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Application Information

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IPC IPC(8): H04L5/00H04W24/10H04B7/06
CPCH04B7/0626H04L5/0053H04W24/10H04L27/2602H04B7/063H04B7/0456H04L5/0094H04L5/0051H04L5/0044H04L5/0057H04L5/0042H04L27/261H04L25/0226H04L5/0007H04L1/0026
Inventor 李辉高秋彬拉盖施陈润华苏昕缪德山黄秋萍王蒙军
Owner DATANG MOBILE COMM EQUIP CO LTD
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