CN116915275A

CN116915275A - Dual-frequency far-end radio frequency unit based on broadband transceiver and related method and equipment

Info

Publication number: CN116915275A
Application number: CN202310854416.9A
Authority: CN
Inventors: 张志荣; 刘桂清; 李鹏; 王庆扬; 谢伟良
Original assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Current assignee: China Telecom Technology Innovation Center; China Telecom Corp Ltd
Priority date: 2023-07-12
Filing date: 2023-07-12
Publication date: 2023-10-20

Abstract

The disclosure provides a dual-frequency remote radio unit based on a broadband transceiver, and a related method and device, and relates to the technical field of communication. The dual-frequency far-end radio frequency unit adopts a wide-band and narrow-band mixed parallel transceiving processing architecture on the basis of broadband transceiving devices such as a broadband transceiver, a broadband transceiving amplifier and the like, can convert baseband signals of a first frequency band and/or a second frequency band sent by a baseband processing unit into analog radio frequency signals of the first frequency band and/or the second frequency band, and transmits the analog radio frequency signals of the first frequency band and/or the second frequency band received by an antenna port or converts the analog radio frequency signals of the first frequency band and/or the second frequency band received by the antenna port into baseband signals of the first frequency band and/or the second frequency band, and transmits the baseband signals of the first frequency band and/or the second frequency band to the baseband processing unit. The power amplification method and the power amplification device can meet the power amplification of the dual-band receiving and transmitting signals, improve the power amplification efficiency of the remote radio frequency unit and save the power amplification power consumption of the remote radio frequency unit.

Description

Dual-frequency far-end radio frequency unit based on broadband transceiver and related method and equipment

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a dual-band remote radio unit based on a broadband transceiver device, and related methods and apparatuses.

Background

The remote radio frequency unit (Radio Remote Unit, RRU) is a device for amplifying a baseband signal sent by the baseband processing unit and then sending the amplified baseband signal through the antenna port, or converting a radio frequency signal received through the antenna port into a baseband signal, and sending the baseband signal to the baseband processing unit.

When the current far-end radio frequency unit only supports the power amplification processing of the single-frequency-band receiving and transmitting signal, the technical problems of the rapid increase of the power consumption, the volume, the weight and the cost of the far-end radio frequency unit are caused in order to reduce the stray and blocking interference of the double-frequency-band signal when the far-end radio frequency unit meeting the power amplification of the double-frequency-band receiving and transmitting signal is designed.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure provides a dual-band remote radio unit based on a broadband transceiver, and related methods and apparatuses, at least to a certain extent, to overcome the technical problem that in the related art, when designing a remote radio unit satisfying power amplification of dual-band transceiver signals, in order to reduce spurious and blocking interference of dual-band signals, power consumption, volume, weight and cost of the remote radio unit will be increased sharply.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

According to one aspect of the present disclosure, there is provided a dual-frequency remote radio unit based on a broadband transceiver device, comprising: the device comprises a baseband radio frequency interface unit, a dual-band mixed digital intermediate frequency module, a broadband transceiver, a broadband radio frequency low-noise amplifier, a broadband radio frequency power amplifier and an antenna port; the base band radio frequency interface unit is connected with the base band processing unit and is used for transmitting base band signals of a first frequency band and/or a second frequency band between the double-frequency far-end radio frequency unit and the base band processing unit; the dual-band mixed digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for realizing conversion between a baseband signal and a digital intermediate frequency signal; the broadband transceiver is connected with the dual-band mixed digital intermediate frequency module and is used for realizing conversion between digital intermediate frequency signals and analog radio frequency signals; the broadband radio frequency low-noise amplifier is connected between the broadband transceiver and the antenna port, and is used for amplifying the analog radio frequency signals of the first frequency band and/or the second frequency band output by the broadband transceiver and transmitting the analog radio frequency signals through the antenna port; the broadband radio frequency power amplifier is connected between the broadband transceiver and the antenna port, and is used for amplifying the analog radio frequency signals of the first frequency band and/or the second frequency band received by the antenna port and transmitting the analog radio frequency signals to the broadband transceiver; the antenna port is used for receiving and transmitting analog radio frequency signals of the first frequency band and/or the second frequency band.

In some embodiments, the dual band hybrid digital intermediate frequency module comprises: the system comprises a first frequency band digital intermediate frequency module, a second frequency band digital intermediate frequency module, a dual-frequency band intermediate frequency divider and a dual-frequency band intermediate frequency combiner; the first frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for converting a baseband signal of a first frequency band into a digital intermediate frequency signal of the first frequency band or converting the digital intermediate frequency signal of the first frequency band into a baseband signal of the first frequency band; the second frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for converting a baseband signal of a second frequency band into a digital intermediate frequency signal of the second frequency band or converting the digital intermediate frequency signal of the second frequency band into a baseband signal of the second frequency band; the dual-band intermediate frequency combiner is respectively connected with the first band digital intermediate frequency module, the second band digital intermediate frequency module and the broadband transceiver and is used for inputting signals output by the first band digital intermediate frequency module and/or the second band digital intermediate frequency module to the broadband transceiver; the dual-band intermediate frequency divider is respectively connected with the first band digital intermediate frequency module, the second band digital intermediate frequency module and the broadband transceiver and is used for inputting signals output by the broadband transceiver to the first band digital intermediate frequency module and/or the second band digital intermediate frequency module.

In some embodiments, the dual band hybrid digital intermediate frequency module further comprises: the device comprises a first frequency band intermediate frequency transmitting filter, a second frequency band intermediate frequency transmitting filter, a first frequency band intermediate frequency receiving filter and a second frequency band intermediate frequency receiving filter; the first frequency band intermediate frequency transmitting filter is positioned between the first frequency band digital intermediate frequency module and the dual-frequency band intermediate frequency combiner and is used for filtering digital intermediate frequency signals of a first frequency band to be transmitted; the second frequency band intermediate frequency transmitting filter is positioned between the second frequency band digital intermediate frequency module and the dual-frequency band intermediate frequency combiner and is used for filtering a digital intermediate frequency signal of a second frequency band to be transmitted; the first frequency band intermediate frequency receiving filter is positioned between the first frequency band digital intermediate frequency module and the double frequency band intermediate frequency divider and is used for filtering the received digital intermediate frequency signal of the first frequency band; the second frequency band intermediate frequency receiving filter is positioned between the second frequency band digital intermediate frequency module and the double-frequency band intermediate frequency divider and is used for filtering the received digital intermediate frequency signals of the second frequency band.

In some embodiments, the dual-band remote radio unit further comprises: a dual-band radio frequency receiving filter and a dual-band radio frequency transmitting filter; the dual-band radio frequency receiving filter is positioned between the broadband radio frequency low-noise amplifier and the broadband transceiver and is used for amplifying and filtering the received analog radio frequency signals; the dual-band radio frequency emission filter is positioned between the broadband transceiver and the broadband radio frequency power amplifier and is used for filtering analog radio frequency signals to be emitted before amplification.

In some embodiments, the dual-band remote radio unit further comprises: the device comprises a dual-band radio frequency power divider, a dual-band radio frequency combiner, a first-band radio frequency duplex filter, a second-band radio frequency duplex filter and a dual-band radio frequency transceiver combiner; the dual-band radio frequency power divider is respectively connected with the broadband radio frequency power amplifier, the first band radio frequency duplex filter and the second band radio frequency duplex filter and is used for inputting the analog radio frequency signals output by the broadband radio frequency power amplifier into the first band radio frequency duplex filter and/or the second band radio frequency duplex filter; the dual-band radio frequency combiner is respectively connected with the broadband radio frequency power amplifier, the first band radio frequency duplex filter and the second band radio frequency duplex filter and is used for inputting the analog radio frequency signals output by the first band radio frequency duplex filter and/or the second band radio frequency duplex filter to the broadband radio frequency low-noise amplifier; the first frequency band radio frequency duplex filter is used for filtering the analog radio frequency signals to be transmitted or received to obtain the analog radio frequency signals of the first frequency band; the second frequency band radio frequency duplex filter is used for filtering the analog radio frequency signals to be transmitted or received to obtain the analog radio frequency signals of the second frequency band; the dual-band radio frequency transceiver combiner is respectively connected with the first band radio frequency duplex filter, the second band radio frequency duplex filter and the antenna port and is used for inputting the analog radio frequency signals output by the first band radio frequency duplex filter and/or the second band radio frequency duplex filter to the antenna port; or inputting the analog radio frequency signals received by the antenna port into the first frequency band radio frequency duplex filter and/or the second frequency band radio frequency duplex filter.

In some embodiments, the first frequency band is an 800M frequency band and the second frequency band is a 900M frequency band.

According to an aspect of the present disclosure, there is also provided a base station including: the baseband processing unit and the dual-band remote radio unit of any one of the above.

According to one aspect of the present disclosure, there is also provided a communication system including: a terminal and a base station as claimed in any preceding claim.

According to an aspect of the present disclosure, there is further provided a control method of a dual-frequency remote radio unit, where the control method is used for controlling the dual-frequency remote radio unit according to any one of the above, and the control method includes: a first control signal, a second control signal and a third control signal are configured, wherein the first control signal is used for controlling the starting or closing of a first frequency band independent device in the dual-frequency far-end radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band independent device in the dual-frequency far-end radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the dual-frequency far-end radio frequency unit; and starting or closing corresponding devices in the dual-frequency remote radio unit according to the configured first control signal, second control signal and third control signal.

According to an aspect of the present disclosure, there is also provided a control device for a dual-frequency remote radio unit, the control device being configured to control the dual-frequency remote radio unit of any one of the above, including: the signal configuration module is used for configuring a first control signal, a second control signal and a third control signal, wherein the first control signal is used for controlling the starting or closing of a first frequency band related device in the dual-frequency far-end radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band related device in the dual-frequency far-end radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the dual-frequency far-end radio frequency unit; and the control module is used for starting or closing corresponding devices in the dual-frequency remote radio frequency unit according to the configured first control signal, second control signal and third control signal.

According to one aspect of the present disclosure, there is also provided an electronic device including: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the control method of the dual-frequency remote radio unit of any one of the above via execution of the executable instructions.

According to an aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the control method of the dual-frequency remote radio unit of any one of the above.

According to another aspect of the present disclosure, there is also provided a computer program product comprising a computer program which, when executed by a processor, implements the control method of the dual-frequency remote radio unit of any one of the above.

The dual-frequency far-end radio frequency unit based on the broadband transceiver device and related method and equipment provided in the embodiments of the present disclosure, where the dual-frequency far-end radio frequency unit adopts a broadband and narrowband hybrid parallel transceiver processing architecture based on the broadband transceiver device such as a broadband transceiver and a broadband transceiver amplifier, and can convert baseband signals of a first frequency band and/or a second frequency band sent by a baseband processing unit into analog radio frequency signals of the first frequency band and/or the second frequency band, and send the analog radio frequency signals of the first frequency band and/or the second frequency band to the antenna port, or convert the analog radio frequency signals of the first frequency band and/or the second frequency band received by the antenna port into baseband signals of the first frequency band and/or the second frequency band, and send the baseband signals to the baseband processing unit.

The dual-frequency remote radio frequency unit provided by the embodiment of the disclosure can meet the power amplification of dual-frequency band receiving and transmitting signals, improves the power amplification efficiency and saves the power consumption of the power amplifier.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

FIG. 1 illustrates a schematic diagram of an application system architecture in an embodiment of the present disclosure;

FIG. 2 illustrates a remote RF unit schematic diagram in accordance with one embodiment of the present disclosure;

FIG. 3 illustrates an alternative dual frequency remote RF unit schematic diagram in accordance with an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of an 800M+900M dual frequency remote RF unit in an embodiment of the disclosure;

fig. 5 shows a signal processing and spectrum shifting flowchart of an 800m+900m dual-band remote rf unit in an embodiment of the disclosure;

Fig. 6 is a flowchart illustrating a control method of a dual-band remote rf unit according to an embodiment of the disclosure;

fig. 7 is a schematic diagram of a control device of a dual-frequency remote rf unit according to an embodiment of the disclosure;

FIG. 8 shows a block diagram of an electronic device in an embodiment of the disclosure;

fig. 9 shows a schematic diagram of a computer-readable storage medium in an embodiment of the disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in software or in one or more hardware modules or integrated circuits or in different networks and/or processor devices and/or microcontroller devices.

The following detailed description of embodiments of the present disclosure refers to the accompanying drawings.

Fig. 1 illustrates a schematic diagram of an exemplary application system architecture to which a remote radio unit in an embodiment of the present disclosure may be applied. As shown in fig. 1, the system architecture may include: a terminal 10 and a base station 20, wherein the base station 20 may comprise: a baseband processing unit 201 and a remote radio frequency unit 202.

The medium providing the communication link between the terminal 10 and the base station 20 may be a wired network or a wireless network. In some embodiments, the wireless network or wired network between the terminal 10 and the base station 20 may use standard communication techniques and/or protocols. The network is typically the Internet, but may be any network including, but not limited to, a local area network (Local Area Network, LAN), metropolitan area network (Metropolitan Area Network, MAN), wide area network (Wide Area Network, WAN), mobile, wired or wireless network, private network, or any combination of virtual private networks. In some embodiments, data exchanged over a network is represented using techniques and/or formats including HyperText Mark-up Language (HTML), extensible markup Language (Extensible MarkupLanguage, XML), and the like. All or some of the links may also be encrypted using conventional encryption techniques such as secure sockets layer (Secure Socket Layer, SSL), transport layer security (Transport Layer Security, TLS), virtual private network (Virtual Private Network, VPN), internet security protocol (Internet Protocol Security, IPSec), etc. In other embodiments, custom and/or dedicated data communication techniques may also be used in place of or in addition to the data communication techniques described above.

In some embodiments, the terminal (UE) in the embodiments of the present disclosure may be a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (wireless Device), a vehicle-mounted Device, or the like, which should be noted that the embodiment of the present invention is not limited to a specific type of the terminal.

In some embodiments, the base station in embodiments of the present disclosure may be a base station of any kind of network. For example, a 5G or later version of a base station (e.g., a 5G NR NB) or other communication system (e.g., an eNB base station), it should be noted that the specific type of base station is not limited in the embodiments of the present disclosure.

Those skilled in the art will appreciate that the number of terminals, networks, and base stations in fig. 1 is merely illustrative, and that any number of terminals, networks, and base stations may be provided as desired. The embodiments of the present disclosure are not limited in this regard.

Under the system architecture described above, in an embodiment of the present disclosure, a dual-band remote rf unit based on a wideband transceiver is provided, as shown in fig. 2, the dual-band remote rf unit 202 may include: a baseband radio frequency interface unit 2021, a dual band hybrid digital intermediate frequency module 2022, a wideband transceiver 2023, a wideband radio frequency low noise amplifier 2024, a wideband radio frequency power amplifier 2025, and an antenna port 2026 (transceiver antenna).

The baseband radio frequency interface unit 2021 is connected to the baseband processing unit 201, and is configured to transmit baseband signals of the first frequency band and/or the second frequency band between the remote radio frequency unit 202 and the baseband processing unit 201; the dual-band mixed digital intermediate frequency module 2022 is connected with the baseband radio frequency interface unit 2021 and is used for realizing conversion between a baseband signal and a digital intermediate frequency signal; a broadband transceiver 2023 connected to the dual-band mixed digital intermediate frequency module 2022, for implementing conversion between digital intermediate frequency signals and analog radio frequency signals; a wideband rf low noise amplifier 2024 connected between the wideband transceiver 2023 and the antenna port 2026, for amplifying the analog rf signals in the first frequency band and/or the second frequency band output by the wideband transceiver 2023, and transmitting the analog rf signals through the antenna port 2026; a wideband radio frequency power amplifier 2025 connected between the wideband transceiver 2023 and the antenna port 2026, for amplifying the analog radio frequency signals of the first frequency band and/or the second frequency band received by the antenna port 2026, and transmitting them to the wideband transceiver 2023; an antenna port 2026 for transceiving analog radio frequency signals in the first frequency band and/or the second frequency band.

In some embodiments, if the dual-band remote rf unit 202 is used for transmitting signals, the dual-band remote rf unit 202 may receive baseband signals of the first frequency band and/or the second frequency band sent by the baseband processing unit 201 through the baseband rf interface unit 2021, convert the baseband signals of the first frequency band and/or the second frequency band sent by the baseband processing unit 201 into corresponding digital intermediate frequency signals through the dual-band mixed digital intermediate frequency module 2022, convert the digital intermediate frequency signals output by the dual-band mixed digital intermediate frequency module 2022 into corresponding analog rf signals through the broadband transceiver 2023, perform pre-transmission amplification processing through the broadband rf low noise amplifier 2024, and finally transmit the signals through the antenna port 2026.

In other embodiments, if the dual-band remote rf unit 202 is configured to receive signals, the dual-band remote rf unit 202 may receive analog rf signals in the first frequency band and/or the second frequency band through the antenna port 2026, receive the analog rf signals in the first frequency band and/or the second frequency band through the wideband rf power amplifier 2025, amplify the received analog rf signals in the wideband rf power amplifier 2025, convert the amplified analog rf signals in the wideband rf power amplifier 2025 into corresponding digital intermediate frequency signals through the wideband transceiver 2023, and convert the digital intermediate frequency signals output by the wideband transceiver 2023 into corresponding baseband signals through the dual-band mixed digital intermediate frequency module 2022, and send the corresponding baseband signals to the baseband processing unit 201.

As can be seen from the foregoing, the dual-band far-end rf unit based on the wideband transceiver provided in the embodiments of the present disclosure adopts a wideband/narrowband hybrid parallel transceiver processing architecture based on wideband transceivers such as wideband transceivers and wideband transceiver amplifiers, so that baseband signals of the first frequency band and/or the second frequency band sent by the baseband processing unit can be converted into analog rf signals of the first frequency band and/or the second frequency band, and the analog rf signals are transmitted through the antenna port, or the analog rf signals of the first frequency band and/or the second frequency band received by the antenna port are converted into baseband signals of the first frequency band and/or the second frequency band, and are sent to the baseband processing unit. The dual-frequency remote radio frequency unit provided by the embodiment of the disclosure can meet the power amplification of dual-frequency band receiving and transmitting signals, improves the power amplification efficiency and saves the power consumption of the power amplifier.

In some embodiments, as shown in fig. 3, the dual band hybrid digital intermediate frequency module 2022 may include: a first band digital intermediate frequency module 2022a, a second band digital intermediate frequency module 2022b, a dual band intermediate frequency splitter 2022c, and a dual band intermediate frequency combiner 2022d; the first band digital intermediate frequency module 2022a is connected to the baseband radio frequency interface unit 2021, and is configured to convert a baseband signal of the first band to a digital intermediate frequency signal of the first band, or convert the digital intermediate frequency signal of the first band to a baseband signal of the first band; the second frequency band digital intermediate frequency module 2022b is connected to the baseband radio frequency interface unit 2021, and is configured to convert a baseband signal of the second frequency band into a digital intermediate frequency signal of the second frequency band, or convert the digital intermediate frequency signal of the second frequency band into a baseband signal of the second frequency band; the dual-band intermediate frequency combiner 2022d is connected with the first-band digital intermediate frequency module 2022a, the second-band digital intermediate frequency module 2022b and the broadband transceiver 2023 respectively, and is used for inputting signals output by the first-band digital intermediate frequency module 2022a and/or the second-band digital intermediate frequency module 2022b to the broadband transceiver 2023; the dual-band intermediate frequency splitter 2022c is connected to the first band digital intermediate frequency module 2022a, the second band digital intermediate frequency module 2022b and the broadband transceiver 2023, and is configured to input a signal output by the broadband transceiver 2023 to the first band digital intermediate frequency module 2022a and/or the second band digital intermediate frequency module 2022b.

Through the above embodiment, the first frequency band digital intermediate frequency module 2022a is utilized to process the signals of the first frequency band, the second frequency band digital intermediate frequency module 2022b is utilized to process the signals of the second frequency band, so that effective isolation of the signals of the first frequency band and the second frequency band can be achieved, then the branching of the received signals is achieved through the dual-frequency band intermediate frequency branching device 2022c, the combining of the transmitting signals is achieved through the dual-frequency band intermediate frequency combining device 2022d, and the receiving and transmitting of the signals of the first frequency band and/or the second frequency band can be achieved through one broadband transceiver 2023.

It should be noted that, since the first band digital if module 2022a processes only the first band signal, the second band digital if module 2022b processes only the second band signal, the baseband signal sent by the baseband processing unit 201 is the first band signal and/or the second band signal, and the analog rf signal received by the wideband transceiver 2023 is the first band signal and/or the second band signal, in some embodiments, as shown in fig. 3, the above dual band hybrid digital if module 2022 may further include: a first band intermediate frequency transmission filter 2022e, a second band intermediate frequency transmission filter 2022f, a first band intermediate frequency reception filter 2022g, a second band intermediate frequency reception filter 2022h; the first band intermediate frequency transmitting filter 2022e is located between the first band digital intermediate frequency module 2022a and the dual band intermediate frequency combiner 2022d, and is configured to filter the digital intermediate frequency signal of the first band to be transmitted; a second band intermediate frequency transmitting filter 2022f, located between the second band digital intermediate frequency module 2022b and the dual band intermediate frequency combiner 2022d, for filtering the digital intermediate frequency signal of the second band to be transmitted; a first band intermediate frequency receiving filter 2022g, located between the first band digital intermediate frequency module 2022a and the dual band intermediate frequency splitter 2022c, for filtering the received digital intermediate frequency signal of the first band; a second band intermediate frequency receiving filter 2022h is located between the second band digital intermediate frequency module 2022b and the dual band intermediate frequency splitter 2022c, and is configured to filter the received digital intermediate frequency signal in the second band.

Through the above embodiment, the signal output by the first frequency band digital intermediate frequency module 2022a can be filtered by the first frequency band intermediate frequency emission filter 2022e, so as to obtain a digital intermediate frequency signal of the first frequency band; filtering the signal output by the second frequency band digital intermediate frequency module 2022b by using the second frequency band intermediate frequency transmitting filter 2022e to obtain a digital intermediate frequency signal of a second frequency band; the signals are combined by the dual-band intermediate frequency combiner 2022d and output to the broadband transceiver 2023; the digital intermediate frequency signal output by the broadband transceiver 2023 is split into a digital intermediate frequency signal of a first frequency band and a digital intermediate frequency signal of a second frequency band by the dual-frequency band intermediate frequency splitter 2022c, and the digital intermediate frequency signal of the first frequency band is filtered by the first frequency band intermediate frequency receiving filter 2022g and then input to the first frequency band digital intermediate frequency module 2022a; the second band digital intermediate frequency signal is filtered by the second band intermediate frequency receiving filter 2022h and then input to the second band digital intermediate frequency module 2022b.

In some embodiments, the dual-frequency remote radio unit 202 implemented based on a wideband transceiver device provided in embodiments of the present disclosure may further include: a dual band radio frequency receive filter 2027 and a dual band radio frequency transmit filter 2028; wherein, the dual-band radio frequency receiving filter 2027 is located between the wideband radio frequency low noise amplifier 2024 and the wideband transceiver 2023, and is used for amplifying and filtering the received analog radio frequency signal; a dual band rf transmit filter 2028 is located between the wideband transceiver 2023 and the wideband rf power amplifier 2025 for pre-amplification filtering of the analog rf signals to be transmitted.

Further, in some embodiments, the dual-frequency remote radio unit 202 implemented based on a wideband transceiver device provided in the embodiments of the present disclosure may further include: a dual band rf power divider 2029, a dual band rf combiner 20210, a first band rf duplex filter 20211, a second band rf duplex filter 20212, and a dual band rf transceiver combiner 20213; the dual-band rf power divider 2029 is connected to the wideband rf power amplifier 2025, the first band rf duplex filter 20211, and the second band rf duplex filter 20212, respectively, and is configured to input an analog rf signal output by the wideband rf power amplifier 2025 to the first band rf duplex filter 20211 and/or the second band rf duplex filter 20212; the dual-band radio frequency combiner 20210 is connected to the broadband radio frequency power amplifier 2025, the first band radio frequency duplex filter 20211 and the second band radio frequency duplex filter 20212, and is configured to input the analog radio frequency signal output by the first band radio frequency duplex filter 20211 and/or the second band radio frequency duplex filter 20212 to the broadband radio frequency low-noise amplifier 2024; a first band rf duplex filter 20211, configured to filter an analog rf signal to be transmitted or received, to obtain an analog rf signal in a first band; a second frequency band rf duplex filter 20212, configured to filter an analog rf signal to be transmitted or received, to obtain an analog rf signal in a second frequency band; the dual-band rf transceiver combiner 20213 is connected to the first band rf duplex filter 20211, the second band rf duplex filter 20212 and the antenna port 2026, and is configured to input an analog rf signal output by the first band rf duplex filter 20211 and/or the second band rf duplex filter 20212 to the antenna port 2026; or the analog radio frequency signal received by the antenna port 2026 is input to the first band radio frequency duplex filter 20211 and/or the second band radio frequency duplex filter 20212.

The dual-frequency far-end radio frequency unit based on the broadband transceiver device provided by the embodiment of the disclosure utilizes the design framework of the wide-narrow-band mixed parallel transceiver processing channel, improves the isolation degree and the suppression degree of dual-band signal transmission and reception, improves the capability of resisting stray, blocking and the like, reduces mutual interference, improves the overall performance of equipment, and has stronger pertinence for the evolution of a wireless network towards the 5G+ direction; by controlling the wide and narrow mixed receiving and transmitting channels, single-opening of the first frequency band or the second frequency band or double-opening or double-rest (sleep) of the first frequency band and the second frequency band can be realized, and the diversity, universality and flexibility of the double-frequency-band far-end radio frequency unit are improved; the wideband receiving filter (low power filter), the wideband transmitting filter (low power filter), the first frequency band duplex filter (high power filter) and the second frequency band duplex filter (high power filter) are matched back and forth to share the inhibition index, so that the capabilities of resisting stray, blocking and the like are improved together, and the anti-interference capability and the equipment performance are improved. The dual-frequency remote radio frequency unit based on the broadband transceiver device is low in implementation complexity and easy to realize a system and popularize a scheme.

It should be noted that, in the embodiment of the present disclosure, the first frequency band and the second frequency band are two different frequency bands, and may have different configurations in different application scenarios, which is not specifically limited in the present disclosure. Because the signals received and transmitted in similar frequency bands are easy to interfere with each other, in some embodiments, the first frequency band and the second frequency band in the embodiments of the present disclosure may be any two frequency bands with relatively close frequency ranges, for example, 800M frequency band and 900M frequency band, 600M frequency band and 700M frequency band, 1.8G frequency band and 1.9G frequency band, 2.0G frequency band and 2.1 frequency band.

In some embodiments, the dual-band remote radio unit implemented based on the wideband transceiver provided in the embodiments of the present disclosure may be applied to, but not limited to, dual-band remote radio units supporting sharing between 800M frequency band and 900M frequency band, where the first frequency band may be 800M frequency band (supported frequency band range 824-835MHz/869-880MHz or 824-839MHz/869-884 MHz), and the second frequency band may be 900M frequency band (supported frequency band range 885-915MHz/930-960MHz or 889-915MHz/934-960 MHz).

It should be noted that 824-835MHz/869-880MHz is a frequency range defined for the 800M band in the present protocol, and 889-915MHz/934-960MHz is a frequency range defined for the 900M band in the present protocol. When the 800M+900M dual-frequency remote radio frequency unit is actually realized, the frequency ranges of the 800M frequency band and the 900M frequency band are expanded according to the requirement, so that the frequency range corresponding to the 800M frequency band is 824-839MHz/869-884MHz, and the frequency range corresponding to the 900M frequency band is 885-915MHz/930-960MHz. The dual-frequency remote radio unit realized based on the broadband transceiver provided by the embodiment of the disclosure supports the frequency range defined by the current protocol and also supports the extended frequency range.

In the following, the embodiment of the disclosure will be described in detail with reference to fig. 4 and 5, taking the first frequency band as an 800M frequency band and the second frequency band as a 900M frequency band as an example. Fig. 4 shows a specific implementation architecture of the 800m+900m dual-frequency remote radio unit implemented based on the broadband transceiver, and fig. 5 shows a signal processing and spectrum shifting flow of the 800m+900m dual-frequency remote radio unit implemented based on the broadband transceiver.

As shown in fig. 4, in the embodiment of the disclosure, an 800m+900M dual-band remote radio unit RRU implemented based on a broadband transceiver may be respectively in communication with an 800M baseband processing unit BBU and a 900M baseband processing unit BBU through an 800M and 900M dual-band baseband radio interface, or in communication with an 800M and 900M two-in-one baseband processing unit BBU, to complete conversion between baseband signals and radio signals. The following describes each module of the 800M+900M dual-frequency remote radio unit RRU implemented based on a broadband transceiver in the embodiment of the disclosure, respectively as follows:

1) The 800M+900M dual-frequency RRU mainly comprises: the device comprises 800M and 900M dual-frequency baseband radio frequency interfaces, 800M and 900M narrow-band+wide-band mixed digital intermediate frequency, 800M and 900M broadband transceivers, 800M and 900M broadband receiving and transmitting filters (low power), 800M and 900M broadband receiving LNA low noise amplifiers, 800M and 900M broadband PA power amplifiers, 800M and 900M duplex filters (high power) and 800M and 900M dual-frequency band four-port transceiver combiners, and forms a downlink signal processing link and an uplink signal processing link.

2) 800M and 900M dual-frequency baseband radio frequency interface: is responsible for 800M and 900M dual-frequency signal interface processing and partial baseband signal processing, outputs (transmits) baseband signals to 800M and 900M broadband digital intermediate frequencies, and inputs (receives) baseband signals from 800M and 900M broadband digital intermediate frequencies.

3) 800M and 900M digital intermediate frequency: the 800M and 900M narrow-band independent parts are respectively responsible for multipath 800M and 900M broadband digital intermediate frequency receiving (digital intermediate frequency demodulating to baseband signal) and transmitting (baseband signal modulating to digital intermediate frequency) processing, multipath 800M and 900M narrow-band intermediate frequency receiving and filtering independent processing and multipath 800M and 900M narrow-band intermediate frequency transmitting and filtering independent processing; the splitter of the 800M and 900M broadband sharing part is responsible for multiplexing 800M and 900M broadband intermediate frequency receiving signals from one to two (broadband intermediate frequency); the combiner (or synthesizer) of the 800M and 900M broadband shared portions is responsible for the two-to-one combination (broadband intermediate frequency) of the multiple 800M and 900M narrowband intermediate frequency transmit signals.

4) 800M+900M broadband transceiver: responsible for multipath 800m+900m broadband Analog-to-digital conversion (ADC, analog-Digital Converter) to 800m+900m broadband digital radio frequency, and multipath 800m+900m broadband digital radio frequency down-conversion (DDC, digital Down Converter) to 800m+900m broadband digital intermediate frequency; or in charge of multipath 800m+900m broadband Digital intermediate frequency up-conversion (DUC, digital Up Converter) to 800m+900m broadband Digital radio frequency, and 800m+900m broadband Digital-to-Analog radio frequency (DAC) to 800m+900m broadband Analog radio frequency.

It should be noted that in the embodiments of the present disclosure, 800m+900m broadband uses a shared one NCO (Numerically Controlled Oscillato, digitally controlled oscillator), and the joint debugging, operation and upgrading can save device volume, power consumption and cost.

5) 800M+900M broadband receive and transmit filter (low power): the 800M receiving and transmitting band-pass filter and the 900M receiving and transmitting band-pass filter are combined to form an 800M+900M broadband receiving and transmitting filter, the 800M+900M broadband analog radio frequency signals are respectively subjected to receiving amplification, filtering after transmitting amplification and filtering before transmitting amplification, the receiving sensitivity and the anti-interference capability of the 800M and 900M radio frequency signals are improved, the inhibition degree indexes of the following 800M and 900M duplex filters (high power) are assisted and shared, the capabilities of resisting stray, blocking and the like are jointly improved, and the power consumption, the volume, the cost and the like of the 800M and 900M dual-frequency RRU are reduced.

It should be noted that, in addition to supporting the placement of the 800M+900M wideband transmit filter before (transmit) power amplifier (low power), embodiments of the present disclosure may also support the placement of the 800M+900M wideband transmit filter after (high power) 800M and 900M dual band four port transceiver combiner; when the high power is placed, the 800M+900M broadband transmitting filter can be arranged inside the RRU or outside the RRU, and equipment maintenance and optimization are facilitated.

6) 800m+900m broadband receive LNA low noise amplifier (Low Noise Amplifier, LNA): and the received 800M+900M broadband analog radio frequency signals are subjected to low-noise broadband amplification, and the 800M and 900M analog radio frequency signals share the broadband receiving low-noise amplifier, so that the power consumption, the volume and the cost of the dual-frequency RRU are saved.

7) 800m+900m broadband Power Amplifier (PA): high-power broadband amplification is carried out on 800M and 900M broadband analog radio frequency signals to be transmitted, so that the high-power amplification efficiency is improved, the high-power amplification power consumption is reduced, and the dual-frequency RRU power consumption, the volume and the cost are saved; the dynamic power sharing of 800M and 900M is easy to realize, and the coverage range of 800M and 900M radio frequency signals is improved; the resource utilization rate of the dual-frequency RRU power amplifier is improved, and the scene adaptability of the dual-frequency RRU equipment is improved.

8) 800M+900M radio frequency combiner: the 800M and 900M radio frequency receiving signals (narrow band radio frequency) are responsible for synthesizing 800M+900M broadband radio frequency receiving signals from two to one signals.

9) 800M+900M radio frequency power divider: the one to two power distribution of the multipath 800M+900M radio frequency transmission signal (broadband radio frequency) is responsible for the 800M+900M broadband radio frequency transmission signal.

10 800M and 900M duplex filters (high power): respectively carrying out 800M band-pass filtering and 900M band-pass filtering on the multipath 800M+900M radio frequency transmission signals (broadband radio frequency), and respectively filtering out 800M (single-band) narrowband transmission signals and 900M (single-band) narrowband transmission signals; the 800M band-pass filtering and the 900M band-pass filtering are respectively carried out on the multi-path 800M and 900M radio frequency receiving signals (mixed multi-frequency), the 800M (single-band) narrow-band receiving signals and the 900M (single-band) narrow-band receiving signals are respectively filtered out, a multi-cavity multi-zero metal cavity filter is adopted, the transmission and receiving isolation degree and the inhibition degree of the 800M and the 900M are mainly improved, the capabilities of resisting stray, blocking and the like are improved, and the anti-interference capability, the equipment performance and the like of the 800M and the 900M dual-frequency RRU are improved.

11 800M and 900M dual band four port transmit-receive combiner: multichannel parallel carries out dual-band (800M and 900M) transceiver radio frequency combination of a single-band 800M radio frequency combination signal and a single-band 900M radio frequency combination signal; forming mutually noninterfere 800M+900M double-frequency radio frequency signals, outputting to the 800M+900M double-frequency antenna for 800M+900M double-frequency radio frequency receiving and transmitting.

It should be noted that, in addition to the primary transceiver combiner of the 800M and 900M dual-band four-port transceiver, the embodiments of the present disclosure may also support two-stage transceiver combiner of the 800M or 900M single-band transceiver and two-port transceiver combiner+800M and 900M dual-band two-port transceiver combiner; the former has high cost and small volume, but small insertion loss; the latter is low cost, but large in size and large in insertion loss.

The 800M+900M dual-frequency remote radio frequency unit realized based on the broadband transceiver provided in the embodiment of the disclosure needs to meet index requirements of 800M and 900M coexistence, stray and blocking under a common station scene, and the 800M+900M dual-frequency RRU device is more harsh to indexes of stray and blocking, and the power consumption, volume, weight, cost and the like of the 800M+900M dual-frequency RRU device are extremely increased.

The 800M+900M dual-frequency remote radio frequency unit realized based on the broadband transceiver device provided by the embodiment of the disclosure adopts 800M, 900M wide and narrow band mixed architecture design, improves the performance of 800M and 900M dual-frequency RRU equipment, improves the transmission and receiving isolation and inhibition degree of 800M and 900M, improves the capability of resisting stray, blocking and the like, reduces the mutual interference and equipment performance, improves the dual-frequency RRU coverage, controls single and dual-frequency working modes, reduces the power consumption, volume, cost and the like of the dual-frequency RRU, reduces the construction, operation and optimization cost of the dual-frequency RRU equipment, has low implementation complexity, and is beneficial to the floor implementation and popularization of the 800M+900M dual-frequency RRU equipment.

Based on the same inventive concept, there is also provided a base station in an embodiment of the present disclosure, as shown in fig. 1, the base station may include: a baseband processing unit 201 and a dual-band remote radio unit 202 of any of the above.

Based on the same inventive concept, there is also provided in an embodiment of the present disclosure a communication system, as shown in fig. 1, which may include: terminal 10 and base station 20, wherein base station 20 includes: a baseband processing unit 201 and a dual-band remote radio unit 202 of any of the above.

Based on the same inventive concept, the embodiments of the present disclosure further provide a control method of the dual-frequency remote radio unit, where the control method is used to control the dual-frequency remote radio unit 202 of any one of the above, and in principle, the control method may be executed by any electronic device having a computing processing capability.

Fig. 6 shows a flowchart of a control method of a dual-frequency remote radio unit in an embodiment of the disclosure, as shown in fig. 6, where the control method includes the following steps:

s602, configuring a first control signal, a second control signal and a third control signal, wherein the first control signal is used for controlling the starting or closing of a first frequency band independent device in a remote radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band independent device in the remote radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the remote radio frequency unit;

S604, according to the configured first control signal, second control signal and third control signal, corresponding devices in the remote radio unit are started or closed.

In the embodiment of the disclosure, the first control signal, the second control signal and the third control signal are shown as ctl_1, ctl_2 and ctl_3 in fig. 3, respectively, and referring to fig. 3, the first control signal (ctl_1) is used to control the start or close of the first band independent devices such as the first band digital intermediate frequency module 2022a, the first band intermediate frequency receiving filter 2022g, the first band intermediate frequency transmitting filter 2022e, the first band radio frequency duplex filter 20211 and the like in the remote radio frequency unit 202; the second control signal (ctl_2) is used for controlling the second-band independent devices such as the second-band digital intermediate frequency module 2022b, the second-band intermediate frequency receiving filter 2022h, the second-band intermediate frequency transmitting filter 2022f, the second-band rf duplex filter 20212, etc. in the remote rf unit 202 to be turned on or turned off; the third control signal (ctl_3) is used to control the on/off of the dual-band sharing devices such as the dual-band intermediate frequency splitter 2022c, the dual-band intermediate frequency combiner 2022d, the wideband transceiver 2023, the wideband rf low-noise amplifier 2024, the wideband rf power amplifier 2025, the dual-band rf receiving filter 2027, the dual-band rf transmitting filter 2028, the dual-band rf power divider 2029, and the dual-band rf combiner 20210 in the remote rf unit 202.

It can be seen that, by controlling the opening and closing of the independent parts (the controlled modules include the narrow band part of 800M and 900M digital intermediate frequency, the rf duplex filter and the rf transceiver combiner) in the 800M and 900M broadband mixed transceiver processing channels by the ctl_1 and ctl_2 control signals, and controlling the opening and closing of the shared parts (the controlled modules include the wide band part-intermediate frequency splitter and intermediate frequency combiner of 800m+900M digital intermediate frequency and the 800m+900M rf wide band part-transceiver, the transceiver filter, the transceiver amplifier, the rf splitter and the rf combiner) in the 800M and 900M broadband mixed transceiver processing channels by the ctl_3 control signals, 800M or 900M single-open, 800M, 900M double-open or double-break (sleep) can be realized, the diversity, the universality and the flexibility of 800m+900M NR RRU spread spectrum device can be improved, the power consumption, the volume and the cost of 800M and 900M double-frequency RRU can be reduced.

The Ctl_1, ctl_2, and Ctl_3 control signals are designed as follows:

1) The method comprises the steps that Ctl_1=1, ctl_2=0, ctl_3=1, 800M independent parts in 800M and 900M broadband mixed transceiving processing channels are opened, 900M independent parts in 800M and 900M broadband mixed transceiving processing channels are closed, a shared part in 800M and 900M broadband mixed transceiving processing channels is opened, and 800M single-frequency operation is performed;

2) Ctl_1=0, ctl_2=1, ctl_3=1, 800M and 900M broadband mixed transceiving processing channels are independently partially opened, 900M in 800M and 900M broadband mixed transceiving processing channels are independently partially opened, and 900M single-frequency operation is performed in 800M and 900M broadband mixed transceiving processing channels;

3) Ctl_1=1, ctl_2=1, ctl_3=1, 800M independent parts, 900M independent parts and shared parts in 800M and 900M broadband mixed transceiving processing channels are all opened, and 800M and 900M double frequencies work simultaneously;

4) And the 800M independent part, the 900M independent part and the shared part in the 800M and 900M broadband mixed transceiving processing channels are all closed in the 800M broadband mixed transceiving processing channels, the Ctl_1=0, the Ctl_2=0 and the Ctl_3=0, and the 800M and 900M broadband mixed transceiving processing channels are simultaneously powered off or dormant in the 800M and 900M dual-frequency mode.

It can be seen that, by controlling the control signal, the dual-frequency remote radio unit based on the broadband transceiver provided in the embodiment of the present disclosure can realize 800M or 900M single-on and 800M, 900M double-on or double-off (sleep), so as to improve diversity, universality and flexibility of the 800m+900M NR RRU spread spectrum device.

Based on the same inventive concept, the embodiment of the disclosure also provides a control device of the dual-frequency remote radio unit, which is used for controlling the dual-frequency remote radio unit based on the broadband transceiver device. As described in the examples below. Since the principle of solving the problem of the embodiment of the device is similar to that of the embodiment of the method, the implementation of the embodiment of the device can be referred to the implementation of the embodiment of the method, and the repetition is omitted.

Fig. 7 is a schematic diagram of a control device of a dual-frequency remote radio unit according to an embodiment of the disclosure, as shown in fig. 7, where the device includes: a signal configuration module 701 and a control module 702.

The signal configuration module 701 is configured to configure a first control signal, a second control signal, and a third control signal, where the first control signal is used to control the start or close of a first frequency band related device in the remote radio unit, the second control signal is used to control the start or close of a second frequency band related device in the remote radio unit, and the third control signal is used to control the start or close of a first frequency band and a second frequency band sharing device in the remote radio unit; the control module 702 is configured to start or close a corresponding device in the remote radio unit according to the configured first control signal, second control signal, and third control signal.

It should be noted that, the signal configuration module 701 and the control module 702 correspond to S602 to S604 in the method embodiment, and the modules are the same as the examples and application scenarios implemented by the corresponding steps, but are not limited to those disclosed in the method embodiment. It should be noted that the modules described above may be implemented as part of an apparatus in a computer system, such as a set of computer-executable instructions.

Those skilled in the art will appreciate that the various aspects of the present disclosure may be implemented as a system, method, or program product. Accordingly, various aspects of the disclosure may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.

An electronic device 800 according to such an embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is merely an example and should not be construed to limit the functionality and scope of use of embodiments of the present disclosure in any way.

As shown in fig. 8, the electronic device 800 is embodied in the form of a general purpose computing device. Components of electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, and a bus 830 connecting the various system components, including the memory unit 820 and the processing unit 810.

Wherein the storage unit stores program code that is executable by the processing unit 810 such that the processing unit 810 performs steps according to various exemplary embodiments of the present disclosure described in the above section of the present specification. For example, the processing unit 810 may perform the following steps of the method embodiment described above: configuring a first control signal, a second control signal and a third control signal, wherein the first control signal is used for controlling the starting or closing of a first frequency band independent device in a remote radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band independent device in the remote radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the remote radio frequency unit; and starting or closing corresponding devices in the remote radio frequency unit according to the configured first control signal, second control signal and third control signal.

The storage unit 820 may include readable media in the form of volatile storage units, such as Random Access Memory (RAM) 8201 and/or cache memory 8202, and may further include Read Only Memory (ROM) 8203.

Storage unit 820 may also include a program/utility 8204 having a set (at least one) of program modules 8205, such program modules 8205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.

Bus 830 may be one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.

The electronic device 800 may also communicate with one or more external devices 840 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 800, and/or any device (e.g., router, modem, etc.) that enables the electronic device 800 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 850. Also, electronic device 800 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 860. As shown, network adapter 860 communicates with other modules of electronic device 800 over bus 830. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 800, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.

From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a terminal device, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

In particular, according to embodiments of the present disclosure, the process described above with reference to the flowcharts may be implemented as a computer program product comprising: and the computer program realizes the control method of the dual-frequency remote radio unit when being executed by the processor.

In an exemplary embodiment of the present disclosure, a computer-readable storage medium, which may be a readable signal medium or a readable storage medium, is also provided. Fig. 9 illustrates a schematic diagram of a computer-readable storage medium in an embodiment of the present disclosure, where a program product capable of implementing the method of the present disclosure is stored on the computer-readable storage medium 900 as illustrated in fig. 9. In some possible implementations, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal to carry out the steps according to the various exemplary embodiments of the disclosure as described in the "exemplary methods" section of this specification, when the program product is run on the terminal.

More specific examples of the computer readable storage medium in the present disclosure may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

In this disclosure, a computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Alternatively, the program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

In particular implementations, the program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).

It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.

Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order or that all illustrated steps be performed in order to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.

From the description of the above embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, including several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A dual-band remote radio unit based on a broadband transceiver device, comprising: the device comprises a baseband radio frequency interface unit, a dual-band mixed digital intermediate frequency module, a broadband transceiver, a broadband radio frequency low-noise amplifier, a broadband radio frequency power amplifier and an antenna port;

the base band radio frequency interface unit is connected with the base band processing unit and is used for transmitting base band signals of a first frequency band and/or a second frequency band between the double-frequency far-end radio frequency unit and the base band processing unit;

the dual-band mixed digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for realizing conversion between a baseband signal and a digital intermediate frequency signal;

the broadband transceiver is connected with the dual-band mixed digital intermediate frequency module and is used for realizing conversion between digital intermediate frequency signals and analog radio frequency signals;

the broadband radio frequency low-noise amplifier is connected between the broadband transceiver and the antenna port, and is used for amplifying the analog radio frequency signals of the first frequency band and/or the second frequency band output by the broadband transceiver and transmitting the analog radio frequency signals through the antenna port;

the broadband radio frequency power amplifier is connected between the broadband transceiver and the antenna port, and is used for amplifying the analog radio frequency signals of the first frequency band and/or the second frequency band received by the antenna port and transmitting the analog radio frequency signals to the broadband transceiver;

The antenna port is used for receiving and transmitting analog radio frequency signals of the first frequency band and/or the second frequency band.

2. The dual band remote radio unit of claim 1, wherein the dual band hybrid digital intermediate frequency module comprises: the system comprises a first frequency band digital intermediate frequency module, a second frequency band digital intermediate frequency module, a dual-frequency band intermediate frequency divider and a dual-frequency band intermediate frequency combiner;

the first frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for converting a baseband signal of a first frequency band into a digital intermediate frequency signal of the first frequency band or converting the digital intermediate frequency signal of the first frequency band into a baseband signal of the first frequency band;

the second frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit and is used for converting a baseband signal of a second frequency band into a digital intermediate frequency signal of the second frequency band or converting the digital intermediate frequency signal of the second frequency band into a baseband signal of the second frequency band;

the dual-band intermediate frequency combiner is respectively connected with the first band digital intermediate frequency module, the second band digital intermediate frequency module and the broadband transceiver and is used for inputting signals output by the first band digital intermediate frequency module and/or the second band digital intermediate frequency module to the broadband transceiver;

The dual-band intermediate frequency divider is respectively connected with the first band digital intermediate frequency module, the second band digital intermediate frequency module and the broadband transceiver and is used for inputting signals output by the broadband transceiver to the first band digital intermediate frequency module and/or the second band digital intermediate frequency module.

3. The dual band remote radio unit of claim 2, wherein the dual band hybrid digital intermediate frequency module further comprises: the device comprises a first frequency band intermediate frequency transmitting filter, a second frequency band intermediate frequency transmitting filter, a first frequency band intermediate frequency receiving filter and a second frequency band intermediate frequency receiving filter;

the first frequency band intermediate frequency transmitting filter is positioned between the first frequency band digital intermediate frequency module and the dual-frequency band intermediate frequency combiner and is used for filtering digital intermediate frequency signals of a first frequency band to be transmitted;

the second frequency band intermediate frequency transmitting filter is positioned between the second frequency band digital intermediate frequency module and the dual-frequency band intermediate frequency combiner and is used for filtering a digital intermediate frequency signal of a second frequency band to be transmitted;

the first frequency band intermediate frequency receiving filter is positioned between the first frequency band digital intermediate frequency module and the double frequency band intermediate frequency divider and is used for filtering the received digital intermediate frequency signal of the first frequency band;

The second frequency band intermediate frequency receiving filter is positioned between the second frequency band digital intermediate frequency module and the double-frequency band intermediate frequency divider and is used for filtering the received digital intermediate frequency signals of the second frequency band.

4. The dual frequency remote radio unit as claimed in claim 1, further comprising: a dual-band radio frequency receiving filter and a dual-band radio frequency transmitting filter;

the dual-band radio frequency receiving filter is positioned between the broadband radio frequency low-noise amplifier and the broadband transceiver and is used for amplifying and filtering the received analog radio frequency signals;

the dual-band radio frequency emission filter is positioned between the broadband transceiver and the broadband radio frequency power amplifier and is used for filtering analog radio frequency signals to be emitted before amplification.

5. The dual frequency remote radio unit as claimed in claim 1, further comprising: the device comprises a dual-band radio frequency power divider, a dual-band radio frequency combiner, a first-band radio frequency duplex filter, a second-band radio frequency duplex filter and a dual-band radio frequency transceiver combiner;

the dual-band radio frequency power divider is respectively connected with the broadband radio frequency power amplifier, the first band radio frequency duplex filter and the second band radio frequency duplex filter and is used for inputting the analog radio frequency signals output by the broadband radio frequency power amplifier into the first band radio frequency duplex filter and/or the second band radio frequency duplex filter;

The dual-band radio frequency combiner is respectively connected with the broadband radio frequency power amplifier, the first band radio frequency duplex filter and the second band radio frequency duplex filter and is used for inputting the analog radio frequency signals output by the first band radio frequency duplex filter and/or the second band radio frequency duplex filter to the broadband radio frequency low-noise amplifier;

the first frequency band radio frequency duplex filter is used for filtering the analog radio frequency signals to be transmitted or received to obtain the analog radio frequency signals of the first frequency band;

the second frequency band radio frequency duplex filter is used for filtering the analog radio frequency signals to be transmitted or received to obtain the analog radio frequency signals of the second frequency band;

the dual-band radio frequency transceiver combiner is respectively connected with the first band radio frequency duplex filter, the second band radio frequency duplex filter and the antenna port and is used for inputting the analog radio frequency signals output by the first band radio frequency duplex filter and/or the second band radio frequency duplex filter to the antenna port; or inputting the analog radio frequency signals received by the antenna port into the first frequency band radio frequency duplex filter and/or the second frequency band radio frequency duplex filter.

6. The dual-band remote radio unit of any one of claims 1 to 5, wherein the first frequency band is an 800M frequency band and the second frequency band is a 900M frequency band.

7. A base station, comprising: a baseband processing unit and a dual-band remote radio unit according to any one of claims 1 to 6.

8. A communication system, comprising: a terminal and a base station as claimed in claim 7.

9. A control method of a dual-frequency remote radio unit, wherein the control method is used for controlling the dual-frequency remote radio unit according to any one of claims 1 to 6, and the control method comprises the steps of:

a first control signal, a second control signal and a third control signal are configured, wherein the first control signal is used for controlling the starting or closing of a first frequency band independent device in the dual-frequency far-end radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band independent device in the dual-frequency far-end radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the dual-frequency far-end radio frequency unit;

and starting or closing corresponding devices in the dual-frequency remote radio unit according to the configured first control signal, second control signal and third control signal.

10. A control device for a dual-band remote radio unit, wherein the control device is configured to control the dual-band remote radio unit according to any one of claims 1 to 6, and comprises:

the signal configuration module is used for configuring a first control signal, a second control signal and a third control signal, wherein the first control signal is used for controlling the starting or closing of a first frequency band related device in the dual-frequency far-end radio frequency unit, the second control signal is used for controlling the starting or closing of a second frequency band related device in the dual-frequency far-end radio frequency unit, and the third control signal is used for controlling the starting or closing of a first frequency band and a second frequency band sharing device in the dual-frequency far-end radio frequency unit;

and the control module is used for starting or closing corresponding devices in the dual-frequency remote radio frequency unit according to the configured first control signal, second control signal and third control signal.

11. An electronic device, comprising:

a processor; and

a memory for storing executable instructions of the processor;

wherein the processor is configured to execute the control method of the dual-frequency remote radio unit of claim 9 via execution of the executable instructions.

12. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the control method of a dual-frequency remote radio unit according to claim 9.