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A tci indication method, device, base station and storage medium

An indication, base station technology, applied in the directions of transmission path sub-channel allocation, digital transmission system, signaling allocation, etc., can solve the problem of affecting the flexibility of NC-JT, the scheme that does not determine the corresponding relationship of DMRS ports, etc., to improve flexibility Effect

Active Publication Date: 2021-11-19
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to realize the QCL indication, during NC-JT, the TCI information field in the downlink control information (Downlink Control Information, DCI) corresponds to one or two transmission configuration indication situations (TCIstate), where the TCI state contains one or more The reference signal for reference, however, in the prior art, when the TCI information field corresponds to two TCI states, there is no solution for determining the corresponding relationship between each CDM group to which the DMRS port belongs and the TCI state, which affects the flexibility of NC-JT, so it is urgently needed A scheme that can flexibly indicate that each CDM group to which a DMRS port belongs corresponds to a TCI state when two TCI states are corresponding in the TCI information field

Method used

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  • A tci indication method, device, base station and storage medium
  • A tci indication method, device, base station and storage medium
  • A tci indication method, device, base station and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0079] The TCI indication method provided by the embodiment of the present invention is applied to a base station, and the method includes:

[0080] When the TCI in the DCI configured for the UE corresponds to at least two TCI states, use the DCI to indicate the correspondence between the CDM group and the TCI state, where the CDM group is the CDM group to which the DMRS port allocated by the base station to the UE belongs .

[0081] Specifically, usually the TCI information field corresponds to one or two TCI states, and if the TCI in the DCI configured by the base station for the UE corresponds to one TCI state, the UE can accurately determine that the CDM group to which the DMRS port allocated for the UE belongs It should be TCI state; if the TCI in the DCI configured for the UE corresponds to two or more TCI states, the UE cannot determine the correspondence between the CDM group to which the DMRS port assigned to the UE belongs and the two or more TCI states , in the emb...

Embodiment 2

[0192] image 3 A schematic structural diagram of a TCI indicating device provided by an embodiment of the present invention is applied to a base station, and the device includes:

[0193] A determining module 31, configured to determine whether the TCI in the DCI configured for the UE corresponds to at least two TCI states;

[0194] The processing module 32: used to indicate the corresponding relationship between the CDM group and the TCIstate through the DCI when the determination result of the determining module is yes, where the CDM group is the CDM group to which the DMRS port allocated by the base station to the UE belongs.

[0195] Preferably, the processing module 32 is specifically configured to, if the DMRS port allocated to the UE conforms to DMRS pilot type 1 and the TCI corresponds to two TCI states, adopt one of the following methods to pass the DCI Indicate the correspondence between the CDM group and the TCI state: through the first indication information in t...

Embodiment 3

[0200] Based on the same inventive concept, the embodiment of the present invention also provides a base station. Since the principle solved by the above base station is similar to the TCI indication method, the implementation of the above base station can refer to the implementation of the method, and the repetition will not be repeated.

[0201] Such as Figure 4 As shown, it is a schematic structural diagram of a base station provided by an embodiment of the present invention, in which Figure 4 Among them, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 41 and various circuits of the memory represented by the memory 42 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, etc., which are well known in the art and therefore will not be further described herein. The bus int...

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Abstract

The present invention discloses a TCI indication method, device, base station, and storage medium. The method includes: when the TCI in the DCI configured by the base station for the UE corresponds to at least two TCI states, indicate the relationship between the CDM group and the TCI state through the DCI The corresponding relationship, wherein the CDM group is the CDM group to which the DMRS port allocated by the base station to the UE belongs. It is used to indicate the corresponding relationship between each CDM group to which the DMRS port assigned to the UE belongs and the TCI state, to support dynamic adjustment of the number of DMRS ports corresponding to different TCI states, and to improve the flexibility of NC‑JT.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a transmission configuration indication (transmission configuration indication, TCI) indication method, device, base station and storage medium. Background technique [0002] With the continuous development of communication technology, people put forward higher requirements for communication quality. In order to improve the signal quality at the edge of the serving cell and provide a more balanced service in the server cell, Coordinated Multiple Point transmission (CoMP) technology is still an important technical means in the NR system. From the perspective of network form, the network deployment of CoMP technology with a large number of distributed access points + centralized baseband processing will be more conducive to providing a balanced user experience rate and significantly reducing the delay and signal caused by handover. Reduce overhead and signific...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCH04L5/0053H04W72/23H04L5/0094H04L5/0051H04L5/026H04L5/0035H04L5/0016H04L5/0023H04L5/0092
Inventor 苏昕高秋彬陈润华王蒙军
Owner DATANG MOBILE COMM EQUIP CO LTD
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