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Antenna correction method, base station and storage medium

A correction method and antenna technology, applied in antennas, receiver monitoring, electrical components, etc., can solve problems such as broadcast weights not reaching expectations, affecting SSCG performance, etc., to ensure accuracy, enhance performance, and improve accuracy Effect

Active Publication Date: 2021-02-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The antenna calibration method, base station and storage medium provided by the embodiments of the present invention mainly solve the technical problem that the broadcast weights based on the design cannot meet expectations due to the inherent phase difference and amplitude difference of each antenna channel in the FDD Massive MIMO system The cell cracking joke, the problem that affects the performance of SSCG after cracking

Method used

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  • Antenna correction method, base station and storage medium
  • Antenna correction method, base station and storage medium
  • Antenna correction method, base station and storage medium

Examples

Experimental program
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Embodiment 1

[0025] The current FDD Massive MIMO system, in TM9 mode, is usually based on MU-MIMO (Multi-UserMultiple-Input Multiple-Output, multi-user multiple-input multiple-output technology) to implement SDMA (SpatialDivision Multiple Access, space division multiple access) ); and for SDMA in TM3 and TM4 modes, there are mainly two implementation modes: MU (Multi-User, multi-user) mode and cell soft splitting mode. On the basis of learning from and retaining the advantages of automatic optimal isolation of interference in the MU mode, it adds support for the soft splitting function of the cell, and defines a new function: intelligent space division cell cluster.

[0026] According to the above introduction, it can be seen that the smart space division cell cluster, that is, SSCG, can split the original single cell into multiple cracked cells by broadcasting weights. Usually, the data of cracked cells in one SSCG is less than or equal to 4. The total coverage of these cracked cells is b...

Embodiment 2

[0075]This embodiment will describe the antenna calibration method on the basis of the foregoing embodiments, please refer to Figure 5 A flow chart of antenna downlink joint calibration shown:

[0076] S502: Determine the correction start time for each cell.

[0077] In an example of this embodiment, the base station sets the correction start time of each cell as Mod(CellID, 11)*60s.

[0078] S504: Stop the downlink transmission except PHICH (Physical Hybrid ARQ Indicator Channel, Physical Hybrid ARQ Indicator Channel) for each terminal in the SSCG, and send the first standard AC sequence through each antenna transmission channel of the currently corrected cell.

[0079] It can be understood that because the antenna downlink joint calibration is to verify the antenna transmission channel, if the base station performs downlink transmission to the terminal in the SSCG at the same time during the antenna downlink joint calibration process of the base station, the communication ...

Embodiment 3

[0105] This embodiment will describe the antenna calibration method on the basis of the foregoing embodiments, please refer to Figure 7 A flow chart of an antenna uplink joint calibration shown:

[0106] S702: Determine the correction start time for each cell.

[0107] In an example of this embodiment, the base station sets the correction start time of each cell as Mod(CellID, 11)*60s.

[0108] S704: Stop the uplink transmission of each terminal in the SSCG, and send the second standard AC sequence to each antenna receiving channel of the current calibration cell through the uplink calibration port.

[0109] It can be understood that since the antenna uplink joint calibration is to verify the antenna receiving channel, if the terminals in the SSCG perform uplink transmission at the same time during the antenna uplink joint calibration process of the base station, the communication information of the uplink transmission will be Affects the calibration result of the antenna u...

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Abstract

The embodiment of the invention provides an antenna correction method, a base station and a storage medium, for each cell in an SSCG, the base station determines correction time for antenna joint correction of the cells, and then when the correction time of a certain cell is up, antenna joint correction is performed on the cell to determine a correction weight of the cell. Each cell in the SSCG shares the same antenna, when the base station determines the correction time for antenna joint correction of each cell in the SSCG to ensure the correction time of each cell does not have an overlapping part, so that each cell of the SSCG can independently perform antenna joint correction, and the accuracy of the correction weight of each cell is ensured. Based on the correction weight, the accuracy of the broadcast weight of the SSCG can be improved, and the performance of the SSCG is enhanced.

Description

technical field [0001] The present invention relates to the communication field, in particular to an antenna calibration method, a base station and a storage medium. Background technique [0002] Within the sector range of an original single cell, the original single cell is cracked into multiple cracked cells through different broadcast weights. Each cracked cell uses an independent broadcast weight. Through the design of the broadcast weight, each split cell can achieve Cover different physical areas. Each cracked cell has independent and complete cell attributes, and the coverage of the SSCG (Smart Space Cell Group, Smart Space Cell Group) composed of these cracked cells can reach the coverage level of the original single cell before cracking as much as possible. At the same time, each cracked cell can perform joint demodulation for uplink transmission to eliminate interference, which can improve receiving performance; for downlink transmission, time-frequency resources ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/12H04B17/21
CPCH04B17/12H04B17/21H01Q3/267
Inventor 孙颖曾召华
Owner ZTE CORP