Remote electrical tilt antenna, base station, and method for matching RCU with RF port

Patent metadata

Field	Value
Publication number	US-9763108-B2
Application number	US-201615343737-A
Country	US
Kind code	B2
Filing date	Nov 4, 2016
Priority date	May 5, 2014
Publication date	Sep 12, 2017
Grant date	Sep 12, 2017

Abstract

A remote electrical tilt antenna with a mismatching device built in and a method for matching a remote control unit (RCU) with a radio frequency (RF) port can accurately and efficiently determine a matching relationship between an RCU and an RF port. The remote electrical tilt antenna includes an RCU configured to receive a drive instruction, and configured to drive the gear; the gear, where the gear is connected to a phase shifter, the gear is driven by the RCU, and the gear, driven by the RCU, is configured to drive the phase shifter; and the phase shifter, where the phase shifter is configured to adjust a direction of an antenna beam, and a mismatching device is built in the phase shifter, where the mismatching device is associated with an RF channel, and the mismatching device is configured to enable the RF channel to generate impedance mismatch.

First claim

What is claimed is:

1. A remote electrical tilt antenna, comprising:
at least one remote electrical tilt unit,
wherein the at least one remote electrical tilt unit comprises:
a remote control unit (RCU);
a gear; and
a phase shifter,
wherein the RCU is connected to the gear and is configured to receive a drive instruction,
wherein the drive instruction is used to instruct the RCU to perform driving,
wherein the RCU is further configured to drive the gear,
wherein the gear is connected to the phase shifter,
wherein the gear is driven by the RCU,
wherein the gear, driven by the RCU, is configured to drive the phase shifter,
wherein the phase shifter is configured to adjust a direction of an antenna beam,
wherein a mismatching device is built in the phase shifter,
wherein the mismatching device is associated with a radio frequency (RF) channel, and
wherein the mismatching device is configured to enable the RF channel to generate impedance mismatch.

2. The remote electrical tilt antenna according to claim 1 , wherein the phase shifter further comprises a moving slider, wherein at least one trigger apparatus is disposed on the moving slider, wherein the at least one trigger apparatus moves along with the moving slider, and wherein the at least one trigger apparatus is configured to trigger the mismatching device to enable the RF channel to generate impedance mismatch.

3. The remote electrical tilt antenna according to claim 2 , wherein the at least one trigger apparatus is a metal spring plate, wherein the metal spring plate is disposed at an end of the moving slider, and wherein the metal spring plate comes into contact with the mismatching device when the moving slider is at a maximum stroke position.

4. The remote electrical tilt antenna according to claim 2 , wherein the at least one trigger apparatus is a copper foil, wherein the copper foil is disposed at an end of the moving slider, and wherein the copper foil comes into contact with the mismatching device when the moving slider is at a maximum stroke position.

5. The remote electrical tilt antenna according to claim 1 , wherein the drive instruction is a first mismatch message, and wherein the drive instruction is used to instruct the RCU to perform first driving when the drive instruction is the first mismatch message.

6. The remote electrical tilt antenna according to claim 1 , wherein the drive instruction is a second mismatch message, and wherein the drive instruction is used to instruct the RCU to perform second driving when the drive instruction is the second mismatch message.

7. A remote electrical tilt antenna, comprising:
at least one remote electrical tilt unit,
wherein the at least one remote electrical tilt unit comprises:
a remote control unit (RCU);
a gear;
a phase shifter; and
a mismatching device,
wherein the RCU is connected to the gear and is configured to receive a drive instruction,
wherein the drive instruction is used to instruct the RCU to perform driving,
wherein the RCU is further configured to drive the gear,
wherein the gear is connected to the phase shifter,
wherein the gear is driven by the RCU,
wherein the gear, driven by the RCU, is configured to drive the phase shifter,
wherein the gear is further configured to trigger a mismatching device,
wherein the phase shifter is configured to adjust a direction of an antenna beam,
wherein the mismatching device is connected to a radio frequency (RF) channel, and
wherein the mismatching device is configured to enable the RF channel to generate impedance mismatch.

Assignees

• Huawei Tech Co Ltd

Inventors

• Shen Jian
• Xiao Weihong

Classifications

• H04W24/10

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title

• H04W16/26 Primary

  Cell enhancers {or enhancement}, e.g. for tunnels, building shadow · CPC title

• H04W16/28

  using beam steering · CPC title

• H04B7/04

  using two or more spaced independent antennas · CPC title