CN213403012U

CN213403012U - Radio remote unit

Info

Publication number: CN213403012U
Application number: CN202022988658.1U
Authority: CN
Inventors: 邵名笠; 徐先锐; 丁维乔; 鲁麟; 葛晶
Original assignee: Tianchang Mingyi Instrument Co ltd
Current assignee: Tianchang Mingyi Instrument Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-06-08
Anticipated expiration: 2030-12-12

Abstract

The utility model provides a unit is pulled far to radio frequency, include: the device comprises a shell, a first positioning device and a second positioning device, wherein the shell is provided with a flat first mounting surface and a second mounting surface opposite to the first mounting surface, and a monitoring camera is mounted on the second mounting surface; an antenna element array disposed within the housing; the antenna oscillator array is electrically connected with the radio frequency processing module so as to receive and transmit radio signals; a plurality of interfaces are arranged on the first mounting surface of the shell. The first interface is a coupling interface of a common network cable which is in butt joint with a shielding network cable and supports the coupling of operator communication data and monitoring network video data; the second interface is a CPRI interface which is used for butting a network cable between the RHUB and the radio remote unit and supporting a CPRI protocol; the third interface is a POE interface for butting a network cable between the switch of the monitoring network and the monitoring camera. The utility model discloses accessible deploys the control in step and reduces owner or operator communication engineering totality input cost with operator's network, practices thrift manpower and material cost.

Description

Radio remote unit

Technical Field

The utility model relates to a communication engineering technical field particularly relates to a radio remote unit.

Background

A base station (eNB) of an access network of a wireless communication system generally includes an indoor Baseband processing Unit (BBU) and a Radio Remote Unit (RRU), where the BBU and the RRU are connected by an optical fiber or a cable, and perform data interaction by using a Common Public Radio Interface (CPRI) or an Open Radio Interface (ORI) protocol.

Base stations in the existing wireless communication system are mostly formed by a baseband processing unit (BBU) and a plurality of Radio Remote Units (RRUs) in a networking mode, and the base stations are intensively placed in an available central machine room, so that the baseband part can be intensively processed; the radio frequency module in the base station is pulled to the remote radio frequency unit by adopting the optical fiber and is respectively placed on the stations, thereby reducing the requirement of a machine room.

At present, the demand of users for indoor wireless communication signals is more intense, and an indoor radio remote distribution system needs to be erected to solve the problem of indoor wireless communication signal coverage. Traditional solutions, called Lampsite, zhongxing Qcell, etc., all require additional occupation of in-building wiring and ceiling resources to deploy the distribution system. In the scene that the access hole or no communication crane span structure were not reserved to the furred ceiling, traditional equipment has still introduced because of the construction destroys great risk of being refused the admission by the owner when increasing engineering time and human cost, can not satisfy current demand yet, and the compatibility is poor, the degree of difficulty of entering into the field is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a to the indoor unlimited communication signal solution's of traditional operator replenishment, it is strong to propose having the compatibility in the actual engineering deployment process, the unit is pulled far away to the radio frequency that the construction destruction is little and easily dispose, use the integration monitoring network as the access point, through the function extension to the unit is pulled far away to the radio frequency, realize the remote integration of monitoring network and operator wireless communication network, simultaneously through supporting the circuit coupling, reduce wiring and opening cost, reduce the threshold of entering into the field of engineering, overcome the difficult point in the wireless distribution system construction of traditional communication.

To achieve the above object, a first aspect of the present invention provides a remote radio unit with integrated monitoring function, including:

the device comprises a shell, a first positioning device and a second positioning device, wherein the shell is provided with a flat first mounting surface and a second mounting surface opposite to the first mounting surface, and a monitoring camera is mounted on the second mounting surface;

an antenna element array disposed within the housing;

the antenna oscillator array is electrically connected with the radio frequency processing module so as to receive and transmit radio signals;

the power interface is connected with an external power supply and supplies power to the monitoring camera and the radio frequency processing module through an internal power circuit;

be provided with a plurality of interfaces on the first installation face of casing, wherein:

the first interface is a coupling interface of a common network interfacing the shielded network cable and supporting coupling of operator communication data with the monitoring network video data;

the second interface is a CPRI interface for interfacing with a network cable between the RHUB and the remote radio unit and supporting a CPRI protocol;

the third interface is a POE interface for interfacing a network cable between the switch of the monitoring network and the monitoring camera.

And the first interface, the second interface and the third interface are all RJ45 interfaces.

The antenna element array is composed of printed antennas and supports the receiving and transmitting of 700MHz-3500MHz radio signals.

The antenna element array is distributed in a horizontal and vertical dual-polarization mode and supports MIMO multi-channel receiving and transmitting.

Wherein the remote radio unit is set in a coupling mode or an uncoupled mode according to the coupling states of the plurality of interfaces, wherein:

in the coupling mode, the coupled common network line link is connected to the first interface and supplies power through the power interface;

in the uncoupled mode, the CPRI port on the RHUB side is connected to the second interface by a network cable pull, and the network cable pull at the switch end of the monitoring network is connected to the third interface.

Wherein, the radio frequency processing module comprises a CPRI protocol processing unit, a digital-analog signal processing unit, a filter, a low-noise amplifier and a power amplifier, wherein:

the CPRI protocol processing unit is electrically connected to the first interface;

the digital-to-analog signal processing unit is connected with the CPRI protocol processing unit and is used for realizing digital-to-analog conversion, analog-to-digital conversion, clock synchronization and signal receiving and transmitting processing;

the digital-to-analog signal processing unit receives radio signals received by the antenna element array through the receiving channel and transmits transmitting signals to the antenna element array through the transmitting channel, the low-noise amplifier is arranged in the receiving channel and used for amplifying the received signals, the power amplifier and the filter are sequentially arranged in the transmitting channel, and the power amplifier is connected with the digital-to-analog signal processing unit and used for amplifying the signal power; the filter and the low-noise amplifier are connected to a duplexer, and the duplexer is connected with the antenna element array.

The internal decoupling of the first interface is respectively connected with the CPRI protocol processing unit in the radio frequency processing module and the monitoring camera.

The first mounting surface of the shell is provided with a fixing part for fixing the shell to a wall body.

The shell is provided with an indicator light module used for indicating the power supply indication and/or the working state of the remote radio unit.

Wherein, the surveillance camera is a panoramic camera or a rotatable camera.

By above the technical scheme of the utility model, its beneficial effect who is showing lies in:

the utility model discloses a unit is pulled far away to radio frequency of unit for integrated camera function, provides surveillance video and operator's wireless radio frequency function simultaneously, supports operator communication network and monitoring data network coupling, and usable current operator's laboratory distribution system or stock monitoring network distribution system realize one-step coupling and deploy, are favorable to saving communication engineering and reform transform the cost, save the interior pipeline resource of building.

It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.

The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of a remote radio unit according to an exemplary embodiment of the present invention.

Fig. 2 is a schematic perspective view of a remote radio unit according to an exemplary embodiment of the present invention.

Fig. 3 is a schematic structural diagram of another angle of the remote radio unit according to an exemplary embodiment of the present invention.

Fig. 4 is a top view of a remote radio unit according to an exemplary embodiment of the present invention.

Fig. 5 is a schematic circuit logic diagram of a remote radio unit according to an exemplary embodiment of the present invention.

Fig. 6 is a schematic diagram of a radio frequency processing unit of a radio remote unit according to an exemplary embodiment of the present invention.

Detailed Description

For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, as the disclosed concepts and embodiments are not limited to any implementation. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

The remote radio unit, which is combined with the embodiment shown in fig. 1-6, includes a housing 10, a monitoring camera 20, a radio frequency processing module 30, and an antenna array 40. The antenna element array 30 and the antenna array 40 are both disposed inside the case 10.

The housing 10 may be made of an aluminum alloy material, which is favorable for heat dissipation. The housing 10 has an upper housing with a flat first mounting face 12 for mounting to a wall surface, such as a ceiling or ceiling wall to which the housing 10 is mounted and secured by a securing portion 60. The lower shell is provided with a second mounting surface 11, a monitoring camera 20 is mounted, and an omnidirectional shooting function can be realized, for example, the lower shell adopts mechanical rotation, panoramic shooting and other realization modes.

Preferably, the lower housing is rotatable relative to the upper housing, and the monitoring camera 20 thus mounted is capable of rotational monitoring, in this embodiment, a rotatable camera is used to achieve panoramic monitoring video capture.

In further embodiments, the monitoring camera 20 may employ a panoramic camera.

The monitoring camera 20 preferably adopts a panoramic infrared high-definition camera, supports two shooting modes of white light and infrared, and has all-weather video monitoring capability.

In combination with the figure, the round edge of the upper shell can be further provided with an array type heat dissipation hole which is periodically distributed, such as a heat dissipation grid model, so that the internal heat dissipation is facilitated, and meanwhile, the heat dissipation hole can be uniformly arranged at the edge of the top of the upper shell.

Optionally, an indicator light module 50 may be further disposed on the housing 10 for indicating a power indication and/or an operating status of the remote radio unit.

As shown in fig. 5 and 6, the antenna element array 40 is electrically connected to the rf processing module 30 for transmitting and receiving radio signals;

the housing is also provided with a power interface 14 connected with an external power supply (such as a 48V direct current power supply), and the power interface supplies power to the monitoring camera and the radio frequency processing module through an internal power circuit.

Optionally, the antenna element array 40 is comprised of printed antennas and supports 700MHz-3500MHz radio signal transceiving. The antenna element array adopts horizontal and vertical dual polarization distribution, and supports MIMO multi-channel transceiving, such as transceiving modes of 2T2R, 4T4R and the like. The antenna array is connected with the radio frequency processing module through an internal interface to realize the receiving and sending of radio signals.

The first mounting surface 12 of the housing 10 is provided with a plurality of interfaces, i.e., a first interface 31, a second interface 32, and a third interface 33. The first interface, the second interface and the third interface are all RJ45 interfaces.

The first interface 31 is a coupling interface of a common network cable that interfaces with a shielded network cable and supports coupling of operator communication data and monitoring network video data.

The second interface 32 is a CPRI interface that interfaces with a network cable between the RHUB and the remote radio unit and supports a CPRI protocol.

The third interface 33 is a POE interface for interfacing with a network cable between the switch of the monitoring network and the monitoring camera.

And the radio frequency processing module 30 is used for modulating the digital signal to a transmitting frequency band, filtering and amplifying the digital signal, and transmitting the digital signal through the connected antenna element array. And receiving radio frequency signals from the antenna element array, filtering and amplifying the radio frequency signals, carrying out down-conversion on the radio frequency signals, carrying out analog-to-digital conversion on the radio frequency signals into digital signals, and sending the digital signals to a BBU/DCU (base band unit/data communication unit) on the radio network side of an operator through an RJ45 network port supporting a CPRI (common public radio interface) protocol on a power interface module for processing.

With reference to fig. 2, 5 and 6, the first interface 31 serves as a coupling port to connect with a shielded network cable, so as to support a common network cable in which operator communication data and monitoring network video data are coupled. The first interface 31 is decoupled internally and is connected to the CPRI protocol processing unit in the rf processing module and the monitoring camera 20, respectively.

The operator network and the first interface of the monitoring network electric signal enter the radio remote unit, the operator CPRI protocol network signal is transmitted to the radio frequency processing module, the operator radio frequency signal is converted into radio frequency electric wave through the antenna array after being processed and is transmitted outwards, and meanwhile, the first interface of the monitoring network IEEE802.3 Ethernet protocol signal is transmitted to the monitoring camera 20 to control and monitor the working state of the monitoring camera 20.

The multimedia signal of the monitoring camera 20 is converted into analog-digital signal by the internal image sensor and the digital signal processing unit, and is fed back to the monitoring host computer through the monitoring exchanger via the first interface according to the IEEE802.3 ethernet protocol requirement. And the wireless network terminal uplink signals such as mobile phones and the like are received by the radio frequency oscillator module, are subjected to analog-to-digital conversion by the radio frequency processing module and are fed back to the operator base station by a CPRI protocol.

Therefore, the utility model provides an indoor distribution system radio frequency of operator zooms unit selects with the help of the optimization that monitoring network deploys fast, for the operator wireless network admission under the not enough scene of closed furred ceiling, pipeline resource, provides the selection that no furred ceiling trompil and pipeline occupy, reduces coordinated cost and admission threshold, and accessible synchronous deployment control reduces owner or operator communication engineering totality input cost with the operator network simultaneously, is favorable to practicing thrift manpower and material cost.

As shown in fig. 5 and 6, the rf processing module 30 includes a CPRI protocol processing unit, a digital-to-analog signal processing unit, a filter, a low noise amplifier, and a power amplifier.

The CPRI protocol processing unit is electrically connected to the first interface 31.

The digital-to-analog signal processing unit is connected with the CPRI protocol processing unit and is used for realizing digital-to-analog conversion, analog-to-digital conversion, clock synchronization and signal receiving and transmitting processing.

The digital-to-analog signal processing unit receives radio signals received by the antenna element array through the receiving channel and transmits transmitting signals to the antenna element array through the transmitting channel, the low-noise amplifier is arranged in the receiving channel and used for amplifying the received signals, the power amplifier and the filter are sequentially arranged in the transmitting channel, and the power amplifier is connected with the digital-to-analog signal processing unit and used for amplifying the signal power; the filter and the low-noise amplifier are connected to the duplexer, and the duplexer is connected with the antenna element array.

The CPRI protocol processing unit receives and sends radio frequency signals based on a common public radio interface protocol (CPRI), and realizes the receiving and sending of operator-level communication digital signals with full duplex, high quality and low time delay.

The digital-to-analog signal processing unit receives a baseband digital signal through a first interface, converts the baseband digital signal into an analog signal, filters the analog signal, and then forms an original analog signal to be transmitted after power amplification (such as an FA power amplifier) and filtering processing; the method comprises the steps of receiving an original signal transmitted by a wireless terminal, carrying out low noise amplification (such as an LNA (low noise amplifier)), carrying out down-conversion on a radio frequency signal into a digital signal by a digital-to-analog signal processing unit, and transmitting the digital signal to a baseband side through a first interface.

With reference to fig. 1, 4, 5, and 6, the remote radio unit of the present invention is set in a coupling mode or an uncoupled mode according to the coupling status of a plurality of interfaces, wherein:

in the coupling mode, the coupled common network line is connected to the first interface 31 and is powered through the power interface 14;

in the uncoupled mode, the CPRI port on the RHUB side is remotely connected to the second interface 32 with a network cable, and the network cable on the switch side of the monitoring network is remotely connected to the third interface 33.

In the deployment process, the utility model discloses a deployment mode is nimble, supports coupling and non-coupling deployment.

As an alternative, the following is deployed:

(one) deployment Condition

(1) The system is provided with an operator and a video monitoring information source;

(2) in the coupling mode, 1 common network wire link and +/-48V direct current power supply are needed;

(3) in the uncoupled mode, 2 network links are required;

(4) a ceiling mounting hole or an equipment bracket is provided to fix an equipment body.

The utility model discloses use the operating procedure as follows:

in the coupling mode: (1) the shielded network cable for coupling the operator and the video monitoring network is connected to the coupling port (i.e. the first interface 31), (2) the 220V to 48V dc power adapter or dc power supply is used for supplying power to the radio remote unit, and the power interface 14 is connected. And finally, adding equipment information in the network management and monitoring host of the operator and activating the equipment information.

In the uncoupled mode: (1) the CPRI port on the RHUB side is connected to the CPRI interface, i.e., the second interface 32, by a network cable; (2) the network cable of the switch/monitoring host of the monitoring network is pulled far to a POE interface, namely a third interface 33; wherein the connection of the steps (1) and (2) is not in sequence. And finally, adding equipment information in the network management and monitoring host of the operator and activating the equipment information.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.

Claims

1. A remote radio unit, comprising:

an antenna element array disposed within the housing;

2. The remote radio unit according to claim 1, wherein the first interface, the second interface and the third interface are all RJ45 interfaces.

3. The remote radio unit of claim 1, wherein the array of antenna elements comprises a printed antenna and supports 700MHz-3500MHz radio signal transceiving.

4. The remote radio unit according to claim 3, wherein the antenna element array employs horizontal and vertical dual polarization distribution to support MIMO multi-channel transceiving.

5. The remote radio unit according to claim 1, wherein the remote radio unit is set in a coupling mode or a non-coupling mode according to coupling states of the plurality of interfaces, wherein:

6. The remote radio unit of claim 1, wherein the radio processing module comprises a CPRI protocol processing unit, a digital-to-analog signal processing unit, a filter, a low-noise amplifier, and a power amplifier, wherein:

7. The remote radio unit according to claim 6, wherein the internal decoupling of the first interface is connected to the CPRI protocol processing unit in the radio processing module and the monitoring camera, respectively.

8. The remote radio unit according to claim 1, wherein the first mounting surface of the housing is provided with a fixing portion for fixing the housing to a wall.

9. The remote radio unit according to claim 1, wherein the housing is provided with an indicator light module for indicating a power supply indication and/or an operating state of the remote radio unit.

10. The remote radio unit according to claim 1, wherein the monitoring camera is a panoramic camera or a rotatable camera.