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Cell coverage area adjusting method and wireless access network system

A technology of cell coverage and adjustment method, applied in the directions of wireless communication, network planning, electrical components, etc., can solve the problem of asynchronous handover between LTE cells and NR cells, etc.

Active Publication Date: 2022-02-22
中国移动通信集团重庆有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, an embodiment of the present invention provides a cell coverage adjustment method and a radio access network system, which are used to solve the problem in the prior art that the handover between the LTE cell and the NR cell connected by the UE is not synchronized

Method used

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  • Cell coverage area adjusting method and wireless access network system
  • Cell coverage area adjusting method and wireless access network system
  • Cell coverage area adjusting method and wireless access network system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0084] Embodiment 1, RF optimization and adjustment of the antenna of the macro station.

[0085] In this embodiment, the antenna type of the LTE base station to which the first LTE cell belongs and the NR base station to which the first NR cell belongs are both macro station antennas. The above step 210 specifically includes:

[0086] Step 211: Set the mechanical downtilt angle of the macro station antenna of the radio frequency of the first LTE cell to 8° to 12°, and adjust the mechanical downtilt angle of the macro station antenna of the radio frequency of the first NR cell to be the same as that of the radio frequency of the first LTE cell. The absolute value of the difference between the mechanical downtilt angles of the macro station antennas of the radio frequency is less than or equal to 2°.

[0087] Preferably, both the mechanical downtilt angle α1 of the macro station antenna of the first LTE cell RF and the mechanical downtilt angle α2 of the macro station antenna ...

Embodiment approach 2

[0094] Embodiment 2, RF optimization adjustment of the MM antenna.

[0095] In this embodiment, the antenna type of the LTE base station to which the first LTE cell belongs and the NR base station to which the first NR cell belongs are both MM antennas. The above step 210 specifically includes:

[0096] Step 212: Set the mechanical downtilt angle of the MM antenna of the radio frequency of the first LTE cell to 8° to 12°, and adjust the mechanical downtilt angle of the MM antenna of the radio frequency of the first NR cell to that of the radio frequency of the first LTE cell. The absolute value of the difference between the mechanical downtilt angles of the MM antennas is less than or equal to 2°.

[0097] Preferably, both the MM antenna mechanical downtilt M-Tilt1 of the first LTE cell RF and the MM antenna mechanical downtilt M-Tilt2 of the first NR cell RF can be set to 10°.

[0098] The above step 220 specifically includes:

[0099] Step 222: Set the vertical lobe width...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, and discloses a cell coverage area adjusting method and system. The method comprises the steps of setting a mechanical downward inclination angle of a wireless radio frequency antenna of a first LTE cell to be within a preset range, adjusting the absolute value of the difference between the antenna mechanical downward inclination angle of the radio frequency of the first NR cell and the mechanical downward inclination angle of the first LTE cell to be smaller than or equal to a preset value, setting the antenna mechanical azimuth angle of the wireless radio frequency of the first LTE cell in a preset range, and adjusting the absolute value of the difference between the antenna mechanical azimuth angle of the wireless radio frequency of the first NR cell and the mechanical azimuth angle of the first LTE cell to be less than or equal to a preset value, and setting the antenna height of the wireless radio frequency of the first LTE cell to be within a preset range, and adjusting the absolute value of the difference between the antenna height of the wireless radio frequency of the first NR cell and the antenna height of the first LTE cell to be less than or equal to a preset value. Through the above mode, the embodiments of the present invention enable the coverage area of the first LTE cell to be consistent with the coverage area of the first NR cell, thereby achieving the purpose of switching synchronization of the LTE cell and the NR cell.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of wireless communication, and in particular to a cell coverage adjustment method and a wireless access network system. Background technique [0002] In the process of 5G communication network construction, considering the evolution of the operator's network and minimizing excessive large-scale investment, in the initial stage of network construction, the networking mode of the 5G network generally adopts NSA (non-Standalone, non-independent networking) model. In the NSA networking mode, EPC (Evolved Packet Core, Evolved Packet Core Network) + LTE (Long Term Evolution, Long Term Evolution Access Network) + NR (New Radio, New Air Interface) is more common, that is, 4G core network plus 4G wireless access network-based non-independent networking mode, with 4G LTE sites as anchor points to provide 5G services. In this mode, a 5G user terminal (UE, User Equipment) based on dual connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/18H04W36/00H04W36/30
CPCH04W16/18H04W36/0058H04W36/00837H04W36/0085H04W36/30
Inventor 周徐方东旭柏田田李俊文冰松谢陶王丽秋
Owner 中国移动通信集团重庆有限公司