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A system, device and method for adjusting cell coverage using antennas

A cell coverage and antenna technology, applied in wireless communication, electrical components, network planning, etc., can solve the problems of high call loss and large interference in densely populated areas of base stations

Inactive Publication Date: 2016-03-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, although the electronically adjustable antenna is introduced to solve the problem of cell coverage, there is no design scheme for self-adaptive adjustment of the electronically adjustable antenna. Solve the problems of high call loss and large interference in the current mobile communication network in areas with high traffic volume and dense base stations

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  • A system, device and method for adjusting cell coverage using antennas
  • A system, device and method for adjusting cell coverage using antennas
  • A system, device and method for adjusting cell coverage using antennas

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Embodiment Construction

[0068] The technical solution of the present invention will be described in detail below with reference to the drawings and preferred embodiments. The following examples are only used to illustrate and explain the present invention, and do not constitute a limitation to the technical solution of the present invention.

[0069] Such as figure 1 As shown, it is a connection method of the electric adjustable antenna network used in the mobile communication network. Usually the base station includes a baseband unit BBU (BaseBandUnit) and a remote radio unit RRU (RemoteRadioUnit), such as figure 1 Shown in the dashed box; among them, BBU is used for baseband processing and centralized control of multiple RRUs; RRU is used for radio frequency resource management, multiple RRUs can be cascaded to form a chain topology structure through optical fiber. The ANT antenna is connected to the RRU via a radio frequency (RF) cable. Multiple ESC antennas can be cascaded to form a chain topology t...

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Abstract

A system, apparatus and method for adjusting cell coverage area by using antennae are disclosed in the present invention. The system includes electrical tilt antennae, a Base Band Unit (BBU) and Remote Radio Units (RRUs) in a base station apparatus, and at least one of the RRUs is used as the RRU of a Central Control Unit (CCU), wherein the BBU monitors parameters reflecting the load status of a cell in real time, and if the monitored parameters exceed predefined critical values, then calculates and obtains the obliquity at the next time of the antenna corresponding to the cell, and forms an antenna instruction which is sent to the corresponding electrical tilt antenna through the RRU used as the CCU; the electrical tilt antenna adjusts the obliquity of the antenna according to the received antenna instruction. The present invention adaptively adjusts the antenna obliquity by monitoring the cell parameters, and thus the response to the change of the cell load status is sensitive, and the adjustment of the antenna obliquity is more exact.

Description

Technical field [0001] The present invention relates to a technology for improving network service quality in mobile communication, and in particular to a system, device and method for adjusting cell coverage by using antennas. Background technique [0002] In order to solve the current mobile communication network's high traffic volume, high call loss and high interference in dense base stations, one solution is to shorten the station distance, that is, reduce the cell coverage area. Reducing cell coverage not only reduces the traffic in the cell and reduces call loss, but also reduces the interference to neighboring cells. The simpler implementation method is to reduce the coverage of the cell by adjusting the downtilt angle of the antenna. However, when an ordinary mechanical antenna is tilted down at a large angle, the horizontal pattern of the antenna is severely deformed, causing interference to the neighboring area, and adjusting the tilt angle is inconvenient and the acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/28H04W24/04H04W24/10
CPCH04W16/28
Inventor 王博
Owner ZTE CORP
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