Remote Electrical Tilt Antenna, Base Station, and Method for Matching RCU with RF Port

• US 20170078892A1
• Filed: 11/04/2016
• Published: 03/16/2017
• Est. Priority Date: 05/05/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Shen, Jian, Xiao, Weihong
• Granted Patent: US 9,763,108 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01Q 3/005 using remotely controlled antenna positioning or scanning
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 16/28 using beam steering
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports

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.

Claims

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.

8. A method for matching a remote control unit (RCU) with a radio frequency (RF) port, comprising:

receiving, by the RCU, first mismatch instruction information sent by a base station;

triggering, by the RCU and according to the first mismatch instruction information, a mismatching device using a power apparatus; and

generating, by the mismatching device, impedance mismatch such that a standing wave exception appears on the RF port, and the base station matches the RCU with the RF port on which the standing wave exception appears.

9. The method according to claim 8, wherein triggering, by the RCU and according to the first mismatch instruction information, the mismatching device using the power apparatus comprises driving, by the RCU, a phase shifter using a gear such that a moving slider in the phase shifter triggers the mismatching device.

10. The method according to claim 9, wherein triggering, by the RCU and according to the first mismatch instruction information, the mismatching device using the power apparatus comprises driving a gear by the RCU such that the gear triggers the mismatching device.