CN214799902U

CN214799902U - Communication system

Info

Publication number: CN214799902U
Application number: CN202121023787.5U
Authority: CN
Inventors: 郭希蕊; 张涛; 王东洋; 马艳君; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-11-19
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a communication system relates to communication technology field for the coverage and the depth of coverage that the realization improved 5G room branch. The utility model discloses a communication system, which comprises an information source device, at least one expansion device, at least one far-end device and at least one first covering device; the first extension equipment is respectively connected with the information source equipment and at least one far-end equipment, and the first far-end equipment is connected with at least one first coverage equipment; the first expansion device is any one of the at least one expansion device, and the first remote device is any one of the at least one remote device.

Description

Communication system

Technical Field

The utility model relates to the field of communication technology, especially, relate to a communication system.

Background

With the continuous development of the fifth generation mobile communication technology (5G), for the indoor coverage scheme of 5G signals, since the feeder link frequency of the passive Direct Attached Storage (DAS) system of the conventional Long Term Evolution (LTE) system can only support to the third generation mobile communication technology 3G, the 5G is used as the wireless coverage of frequencies above 3G, and the current indoor passive DAS system and passive devices cannot be directly utilized.

The existing DAS system needs to be modified, index optimization of passive devices and upgrading of the passive devices need to be promoted, the realization period is long, the difficulty is high, and the coverage range and the coverage depth are not enough.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a communication system for realize improving coverage and the depth of coverage that 5G room divides.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

in a first aspect, an embodiment of the present invention provides a communication system, including an information source device, at least one extension device, at least one remote device, and at least one first overlay device; the first extension equipment is respectively connected with the information source equipment and at least one far-end equipment, and the first far-end equipment is connected with at least one first coverage equipment; the first expansion equipment is any one of the at least one expansion equipment, and the first remote equipment is any one of the at least one remote equipment; the signal source equipment is used for sending a first signal to the at least one expansion equipment, and the first signal comprises a baseband signal and a synchronous signal; the first expansion equipment is used for processing the received first signal to obtain a second signal and sending the second signal to at least one remote equipment; the second signal comprises time domain in-phase quadrature IQ data and signaling data; the first remote equipment is used for carrying out digital-to-analog conversion and power amplification processing on the received second signal to obtain a third signal and sending the third signal to at least one first covering equipment; the third signal comprises an analog signal obtained after processing; and the at least one first covering device is used for amplifying the received third signal by gain and then sending the amplified third signal to the antenna.

Optionally, the source device includes an access device; the access equipment is connected with the base station equipment; and the access equipment is used for receiving the radio frequency signal sent by the base station equipment and generating a first signal based on the radio frequency signal.

Optionally, the source device includes a host device; the host device is specifically configured to generate the first signal.

Optionally, the source device and the at least one expansion device are connected by an optical fiber connection.

Optionally, the first expansion device and the at least one remote device are connected by using a photoelectric composite cable, or an optical fiber.

Optionally, the first remote device and the at least one first covering device are connected by a photoelectric composite cable, or connected by an optical fiber connection.

Optionally, the communication system further includes at least one second overlay device; one of the at least one second overlay device is connected to one of the first overlay devices and the at least one second overlay device is connected in series.

Optionally, a connection manner of the photoelectric composite cable is adopted between the second covering device and the first covering device, or a feeder line is adopted for connection.

Optionally, the at least one second covering device is connected by a photoelectric composite cable or a feeder line.

The embodiment of the utility model provides a communication system can be through at least one extension equipment and at least one distal end equipment, with the baseband signal and the synchronizing signal that an information source equipment sent, finally send to the antenna through at least one cover equipment with the analog signal after enlarging, can improve the coverage and the depth of coverage of 5G signal under the condition that need not to reform transform passive device, antenna.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a communication system according to the present invention;

fig. 2 is a schematic structural diagram of an access device provided by the present invention;

fig. 3 is a schematic structural diagram of a host device provided by the present invention;

fig. 4 is a schematic structural diagram of an expansion device provided by the present invention;

fig. 5 is a schematic structural diagram of a remote device provided by the present invention;

fig. 6 is a first schematic structural diagram of a first covering apparatus provided by the present invention;

fig. 7 is a schematic structural diagram of a communication system according to the present invention;

fig. 8 is a schematic structural diagram of a first covering device according to the present invention.

Reference numerals:

10-a communication system; 11 source devices; 121 an expansion device; 122 an expansion device; 123 an expansion device; 131 a remote device; 132 a remote device; 133 a remote device; 141 a first overlay device; 142 a first overlay device; 143 a first overlay device; 20 accessing a device; 21TDD synchronization and switch demodulation module; 22ADDA radio frequency module; 23 baseband processing module; 30 a host device; 31 a processor; 32 a physical layer module; 33 a clock synchronization module; 34 a sending module; 40 expanding the equipment; 41 a processor; 42 frequency domain IQ data processing module; 43 time domain IQ data processing module; 44 group frame module; 50 a remote device; 51, a digital-to-analog conversion module; 52 a power amplification module; a send 53 module; 54 antenna; 60 a first covering device; 61 an amplifying module; 62 a sending module; 63 an antenna; 151 a second overlay device; 152 a second overlay device; 64 coupler.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides a communication system, figure 1 shows this communication system's schematic structure diagram. As shown in fig. 1, the communication system 10 includes a source device 11, at least one extension device (fig. 1 exemplarily shows

extension devices

121, 122, and 123, and in practical applications, more or less extension devices may be present), at least one remote device (fig. 1 exemplarily shows remote devices 131, 132, and 133, and in practical applications, more or less remote devices may be present), and at least one first overlay device (fig. 1 exemplarily shows overlay devices 141, 142, and 143, and in practical applications, more or less overlay devices may be present);

the first extension equipment is respectively connected with the information source equipment and at least one far-end equipment, and the first far-end equipment is connected with at least one first coverage equipment;

the first expansion equipment is any one of the at least one expansion equipment, and the first remote equipment is any one of the at least one remote equipment;

illustratively, as shown in fig. 1, the expansion device 121 is connected to the source device 11 and the remote devices 131, 132, 133, respectively. The remote device 131 is connected to the first cover device 141, 142, 143.

The signal source equipment is used for sending a first signal to the at least one expansion equipment, and the first signal comprises a baseband signal and a synchronous signal;

the first expansion equipment is used for carrying out signal separation processing on the received first signal to obtain a plurality of second signals and sending the second signals to at least one remote equipment; each second signal comprises time domain in-phase quadrature IQ data and signaling data;

the first remote equipment is used for carrying out digital-to-analog conversion and power amplification processing on the received second signal to obtain a third signal and sending the third signal to at least one first covering equipment; the third signal comprises an analog signal obtained after processing;

and the at least one first covering device is used for amplifying the received third signal by gain and then sending the amplified third signal to the antenna.

Optionally, the source device and the at least one expansion device are connected by using an optical fiber connection. The first expansion equipment and the at least one remote equipment are connected by adopting a connection mode of a photoelectric composite cable or a connection mode of an optical fiber. The first far-end equipment and the at least one first covering equipment are connected by adopting a photoelectric composite cable or an optical fiber connection mode.

In one design, in a communication system provided in an embodiment of the present invention, an information source device includes an access device; the access device is connected with the base station device through an optical fiber and is used for receiving the radio frequency signal sent by the base station device and generating a first signal based on the radio frequency signal.

In practical applications, the base station device may be a Remote Radio Unit (RRU) device of an outdoor base station or an indoor base station.

Fig. 2 shows a schematic structural diagram of the access device. As shown in fig. 2, the access device 20 includes a time division duplex TDD synchronization and switch demodulation module 21, an ADDA radio frequency module 22, and a baseband processing module 23.

The TDD synchronization and switch demodulation module 21, the AADA rf module 22, and the baseband processing module 23 are connected to each other.

The TDD synchronization and switch demodulation module 21 is configured to demodulate the received radio frequency signal to generate a synchronization signal, and send the synchronization signal to the baseband processing module 23.

The AADA rf module 22 is configured to convert the received rf signal into a baseband signal, and send the baseband signal to the baseband processing module 23.

The baseband processing module 23 is configured to combine the received baseband signal and the synchronization signal to obtain a first signal.

And the access equipment is used for receiving the radio frequency signal sent by the base station equipment and converting the radio frequency signal into a baseband signal.

In one design, in the communication system provided by the embodiment of the present invention, the information source device may also be a host device; the host device is specifically configured to generate the first signal. Fig. 3 shows a schematic configuration of the host device. As shown in fig. 3, the host device 30 includes a processor 31, a physical layer module 32, a clock synchronization module 33, and a transmission module 34.

The processor 31 is connected to the physical layer module 32 and the transmission module 34, and the physical layer module 32 is connected to the clock synchronization module 33.

And a clock synchronization module 33 for generating a synchronization signal and transmitting the synchronization signal to the physical layer module 32.

A physical layer module 32 for generating a baseband signal and transmitting the baseband signal to the processor through the physical layer. Meanwhile, the physical layer module 32 is further configured to send the received synchronization signal to the processor 33 through the physical layer.

The processor 33 is configured to perform data link layer processing and network layer processing on the received baseband signal and the synchronization signal to obtain a first signal, and send the first signal to at least one expansion device through an optical interface in the sending module 34.

For example, in practical applications, the host device may be a building Base Band Unit (BBU). The processor 33 may be composed of a general purpose server (X86 architecture or arm (advanced RISC architectures)) or a System On Chip (SOC) scheme.

Fig. 4 shows a schematic structural diagram of an extension device provided by an embodiment of the present invention, as shown in fig. 4, the extension device 40 includes a processor 41, a frequency domain IQ data processing module 42, a time domain IQ data processing module 43, and a framing module 44;

the processor 41 is connected to the frequency domain IQ data processing module 42 and the framing module 44, respectively, and the time domain IQ data processing module 43 is connected to the frequency domain IQ data processing module 42 and the framing module 44, respectively.

The processor 41 is configured to separate the first signal into in-phase and quadrature IQ data and signaling data, and send the IQ data to the frequency domain IQ data processing module 42, and meanwhile, the processor 41 sends the signaling data to the framing module 44.

It should be noted that the signaling management data may be Operation Administration and Maintenance (OAM) data.

After receiving the IQ data, the frequency domain IQ data processing module 42 processes the IQ data and sends the processed IQ data to the time domain IQ data processing module 43.

It should be noted that there may be a plurality of time domain IQ data processing modules 43, and each time domain IQ data processing module corresponds to one remote device.

The time domain IQ data processing module 43 processes the received data and sends it to the framing module 44.

The framing module 44 combines the received signaling data and the data processed by the time domain IQ data processing module 43 to generate a second signal and transmits the second signal to the remote device.

It should be noted that one expansion device may include a plurality of transmitting modules, which are used to transmit the second signal to a plurality of remote devices.

Illustratively, one expansion device may transmit a second signal to 8, 16, or 32 remote devices.

Fig. 5 shows a schematic structural diagram of a remote device according to an embodiment of the present invention, and as shown in fig. 5, the remote device 50 includes a digital-to-analog conversion module 51, a power amplification module 52, a transmission module 53, and an antenna 54.

The power amplification module 52 is connected to the digital-to-analog conversion module 51, the transmission module 53 and the antenna 54, respectively.

The digital-to-analog conversion module 51 is configured to perform digital-to-analog conversion on the received second signal, and send the signal after the digital-to-analog conversion to the power amplification module.

The power amplifying module 52 is configured to amplify the received signal and send the amplified signal to the antenna 54 or to at least one first coverage device through the sending module 53.

It will be appreciated that the inclusion of the antenna 54 in the remote device 50 enables direct outward transmission of the analog signal.

Fig. 6 shows a schematic structural diagram of a first covering device according to an embodiment of the present invention. As shown in fig. 6, the first covering device 60 provided by the present invention includes an amplifying module 61, a transmitting module 62 and an antenna 63.

The transmitting module 62 is connected to the amplifying module 61 and the antenna 63, respectively.

The amplifying module 61 is configured to amplify the received analog signal to generate a third signal and transmit the third signal to the antenna 63 or an external antenna through the transmitting module 62.

It should be noted that the first covering device 60 can be powered by a remote device through the optical/electrical composite cable.

Optionally, as shown in fig. 7, the communication system provided in the embodiment of the present invention further includes at least one second overlay device (fig. 7 exemplarily shows the second overlay device 151 and the second overlay device 152, and in practical applications, there may be more or less second overlay devices).

And one second overlay device in the at least one second overlay device is connected with one first overlay device, and the at least one second overlay device is connected in series.

And a second covering device is connected with a first covering device by adopting a photoelectric composite cable or a feeder line.

And at least one second covering device is connected with the photoelectric composite cable or connected with the photoelectric composite cable by a feeder line.

Optionally, as shown in fig. 8, the first covering device provided by the embodiment of the present invention further includes a coupler 64.

Wherein the coupler 64 is connected to the amplification module 61 and the coupler of the second cover device, respectively.

It should be noted that the second covering device has the same structure as the first covering device, has the same modules, and has the same connection mode and function between each module.

An expansion device may provide power to the at least one remote device via the composite optical/electrical cable, and a remote device may provide power to the at least one first overlay device and the at least one second overlay device via the composite optical/electrical cable.

The power supply capacity of one piece of expansion equipment is larger than the power loads of at least one remote equipment, at least one first covering equipment and at least one second covering equipment.

In the above embodiments provided by the present invention, the communication system is introduced by using the behavior example under the signal. For a specific example of the uplink signal, reference may also be made to the downlink signal process described above, and details are not described here.

In the description herein, particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A communication system comprising a source device, at least one extension device, at least one remote device, and at least one first overlay device; the first extension equipment is respectively connected with the information source equipment and the at least one far-end equipment, and the first far-end equipment is connected with the at least one first coverage equipment; the first expansion device is any one of the at least one expansion device, and the first remote device is any one of the at least one remote device;

the source device is configured to send a first signal to the at least one expansion device, where the first signal includes a baseband signal and a synchronization signal;

the first extension device is configured to process the received first signal to obtain a second signal, and send the second signal to the at least one remote device; the second signal comprises time domain in-phase quadrature IQ data and signaling data;

the first remote device is configured to perform digital-to-analog conversion and power amplification on the received second signal to obtain a third signal, and send the third signal to the at least one first overlay device; the third signal comprises an analog signal obtained after processing;

and the at least one first covering device is used for amplifying the received third signal by gain and then sending the amplified third signal to an antenna.

2. The communication system of claim 1, wherein the source device comprises an access device; the access equipment is connected with the base station equipment;

the access device is configured to receive a radio frequency signal sent by a base station device, and generate the first signal based on the radio frequency signal.

3. The communication system of claim 1, wherein the source device comprises a host device; the host device is specifically configured to generate the first signal.

4. The communication system of claim 1, wherein the source device is connected to the at least one expansion device by a fiber optic connection.

5. The communication system of claim 1, wherein the first expansion device is connected to the at least one remote device by a composite optical/electrical cable or an optical fiber.

6. The communication system according to claim 1, wherein the first remote device is connected to the at least one first overlay device by a composite optical/electrical cable or by a fiber optic connection.

7. The communication system of claim 1, further comprising at least one second overlay device; one of the at least one second overlay device is connected to one of the first overlay devices and the at least one second overlay device is connected in series.

8. The communication system according to claim 7, wherein the one second overlay device is connected to the one first overlay device by using a composite optical/electrical cable, or a feeder line.

9. The communication system according to claim 7, wherein the at least one second overlay device is connected by a photoelectric composite cable or a feeder line.