Dual-band remote radio unit based on narrow-band transceiver and related methods and devices

Abstract

The present disclosure provides a kind of dual-frequency remote radio unit based on narrowband transceiver and related method and equipment, it is related to communication technical field.The remote radio unit is based on narrowband transceiver and narrowband transceiver amplifier such as narrowband transceiver, uses narrowband parallel transceiver processing architecture, can convert the baseband signal of first frequency band and / or second frequency band sent by baseband processing unit into the analog radio frequency signal of first frequency band and / or second frequency band, emits through antenna port, or converts the analog radio frequency signal of first frequency band and / or second frequency band received by antenna port into the baseband signal of first frequency band and / or second frequency band, sends to baseband processing unit.The present disclosure meets the power amplification of dual-band transceiver signal, uses parallel and independent control transceiver processing architecture to process different frequency band transceiver signal, reduces the mutual interference between dual-band signal transceiving, improves the ability of anti-spur and block.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication technology, and in particular, to a dual-frequency remote radio unit based on narrowband transceiver and related methods and devices. BACKGROUND

[0002] A remote radio unit (RRU) is a device for amplifying the baseband signal sent by the baseband processing unit and transmitting it through the antenna port or converting the radio frequency signal received through the antenna port into a baseband signal and sending it to the baseband processing unit.

[0003] The current remote radio unit only supports single-band transceiver signal power amplification processing. When designing a remote radio unit that meets the power amplification of dual-band transceiver signals, in order to reduce the spurious and blocking interference of dual-band signals, it is inevitable to cause the technical problem of sharp increase in power consumption, volume, weight and cost of the remote radio unit.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0005] The present disclosure provides a dual-frequency remote radio unit based on narrowband transceiver and related methods and devices, which at least partially overcomes the technical problem in the related art that when designing a remote radio unit that meets the power amplification of dual-band transceiver signals, in order to reduce the spurious and blocking interference of dual-band signals, it is inevitable to cause the technical problem of sharp increase in power consumption, volume, weight and cost of the remote radio unit.

[0006] Other characteristics and advantages of the present disclosure will become apparent from the following detailed description, or will be learned by practice of the present disclosure.

[0007] According to one aspect of the present disclosure, a dual-frequency remote radio unit based on a narrowband transceiver is provided, comprising: a baseband radio interface unit, an antenna port, and a first frequency band transceiving processing unit and a second frequency band transceiving processing unit connected in parallel between the baseband radio interface unit and the antenna port; wherein the baseband radio interface unit is connected with a baseband processing unit, and is configured to transmit a baseband signal of a first frequency band and / or a second frequency band between the dual-frequency remote radio unit and the baseband processing unit; the first frequency band transceiving processing unit comprises a first frequency band digital intermediate frequency module, a first frequency band transceiver, a first frequency band radio frequency low noise amplifier, and a first frequency band radio frequency power amplifier, and is configured to implement amplification processing of a first frequency band transceiving signal; the second frequency band transceiving processing unit comprises a second frequency band digital intermediate frequency module, a second frequency band transceiver, a second frequency band radio frequency low noise amplifier, and a second frequency band radio frequency power amplifier, and is configured to implement amplification processing of a second frequency band transceiving signal; and the antenna port is configured to transceive an analog radio frequency signal of the first frequency band and / or the second frequency band.

[0008] In some embodiments, the dual-frequency remote radio unit further comprises: a first frequency band radio frequency duplex filter, a second frequency band radio frequency duplex filter, and a dual-frequency band radio frequency transceiving combiner; wherein the first frequency band radio frequency duplex filter is connected with the first frequency band radio frequency low noise amplifier and the first frequency band radio frequency power amplifier respectively, and is configured to filter an analog radio frequency signal to be transmitted or received to obtain an analog radio frequency signal of the first frequency band; the second frequency band radio frequency duplex filter is connected with the second frequency band radio frequency low noise amplifier and the second frequency band radio frequency power amplifier respectively, and is configured to filter an analog radio frequency signal to be transmitted or received to obtain an analog radio frequency signal of the second frequency band; and the dual-frequency band radio frequency transceiving combiner is connected with the first frequency band radio frequency duplex filter, the second frequency band radio frequency duplex filter, and the antenna port respectively, and is configured to input an analog radio frequency signal output by the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter to the antenna port, or input an analog radio frequency signal received by the antenna port to the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter.

[0009] In some embodiments, the first frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit, and is configured to convert a first frequency band baseband signal into a first frequency band digital intermediate frequency signal, or convert a first frequency band digital intermediate frequency signal into a first frequency band baseband signal; the first frequency band transceiver is located between the first frequency band digital intermediate frequency module and the antenna port, and is configured to realize conversion between a digital intermediate frequency signal and an analog radio frequency signal; the first frequency band radio frequency low noise amplifier is connected between the first frequency band transceiver and the antenna port, and is configured to amplify an analog radio frequency signal of the first frequency band output by the first frequency band transceiver, and transmit the analog radio frequency signal of the first frequency band through the antenna port; and the first frequency band radio frequency power amplifier is connected between the first frequency band transceiver and the antenna port, and is configured to amplify an analog radio frequency signal of the first frequency band received by the antenna port, and send the analog radio frequency signal of the first frequency band to the first frequency band transceiver.

[0010] In some embodiments, the dual-frequency remote radio unit further comprises a first frequency band radio frequency receiving filter and a first frequency band radio frequency transmitting filter; the first frequency band radio frequency receiving filter is located between the first frequency band radio frequency low noise amplifier and the first frequency band transceiver, and is configured to filter an amplified analog radio frequency signal; and the first frequency band radio frequency transmitting filter is located between the first frequency band transceiver and the first frequency band radio frequency power amplifier, and is configured to filter an analog radio frequency signal to be transmitted.

[0011] In some embodiments, the dual-frequency remote radio unit further comprises a first frequency band intermediate frequency transmitting filter and a first frequency band intermediate frequency receiving filter; the first frequency band intermediate frequency transmitting filter is located between the first frequency band digital intermediate frequency module and the first frequency band transceiver, and is configured to filter a first frequency band digital intermediate frequency signal to be transmitted; and the first frequency band intermediate frequency receiving filter is located between the first frequency band digital intermediate frequency module and the first frequency band transceiver, and is configured to filter a received first frequency band digital intermediate frequency signal.

[0012] In some embodiments, the second frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit, and is configured to convert a second frequency band baseband signal into a second frequency band digital intermediate frequency signal, or convert a second frequency band digital intermediate frequency signal into a second frequency band baseband signal; the second frequency band transceiver is located between the second frequency band digital intermediate frequency module and the antenna port, and is configured to realize conversion between a digital intermediate frequency signal and an analog radio frequency signal; the second frequency band radio frequency low noise amplifier is connected between the second frequency band transceiver and the antenna port, and is configured to amplify an analog radio frequency signal of the second frequency band output by the second frequency band transceiver, and transmit the analog radio frequency signal of the second frequency band through the antenna port; and the second frequency band radio frequency power amplifier is connected between the second frequency band transceiver and the antenna port, and is configured to amplify an analog radio frequency signal of the second frequency band received by the antenna port, and transmit the analog radio frequency signal of the second frequency band to the second frequency band transceiver.

[0013] In some embodiments, the dual-frequency remote radio unit further comprises a second frequency band radio frequency receiving filter and a second frequency band radio frequency transmitting filter; the second frequency band radio frequency receiving filter is located between the second frequency band radio frequency low noise amplifier and the second frequency band transceiver, and is configured to filter an amplified analog radio frequency signal; and the second frequency band radio frequency transmitting filter is located between the second frequency band transceiver and the second frequency band radio frequency power amplifier, and is configured to filter an analog radio frequency signal to be transmitted.

[0014] In some embodiments, the dual-frequency remote radio unit further comprises a second frequency band intermediate frequency transmitting filter and a second frequency band intermediate frequency receiving filter; the second frequency band intermediate frequency transmitting filter is located between the second frequency band digital intermediate frequency module and the second frequency band transceiver, and is configured to filter a second frequency band digital intermediate frequency signal to be transmitted; and the second frequency band intermediate frequency receiving filter is located between the second frequency band digital intermediate frequency module and the second frequency band transceiver, and is configured to filter a received second frequency band digital intermediate frequency signal.

[0015] In some embodiments, the first frequency band is an 800M frequency band, and the second frequency band is a 900M frequency band.

[0016] According to another aspect of the present disclosure, a base station is also provided, which comprises a baseband processing unit and the dual-frequency remote radio unit as described in any of the above.

[0017] According to another aspect of the present disclosure, a communication system is also provided, which comprises a terminal and the base station as described above.

[0018] According to another aspect of the present disclosure, there is also provided a control method of a dual-frequency remote radio unit, the control method being used to control any of the dual-frequency remote radio units described above, the control method comprising: configuring a first control signal and a second control signal, wherein the first control signal is used to control starting or stopping of a first frequency band independent device in the dual-frequency remote radio unit, and the second control signal is used to control starting or stopping of a second frequency band independent device in the dual-frequency remote radio unit;

[0019] According to the configured first control signal and second control signal, the corresponding devices in the dual-frequency remote radio unit are started or stopped.

[0020] According to another aspect of the present disclosure, there is also provided a control device of a dual-frequency remote radio unit, the control device being used to control any of the dual-frequency remote radio units described above, the control device comprising: a signal configuration module configured to configure a first control signal and a second control signal, wherein the first control signal is used to control starting or stopping of a first frequency band independent device in the dual-frequency remote radio unit, and the second control signal is used to control starting or stopping of a second frequency band independent device in the dual-frequency remote radio unit; and a control module configured to start or stop the corresponding devices in the dual-frequency remote radio unit according to the configured first control signal and second control signal.

[0021] According to another aspect of the present disclosure, there is also provided an electronic device, comprising: a processor; and a memory configured to store executable instructions of the processor; wherein the processor is configured to execute the control method of the dual-frequency remote radio unit of any of the above via execution of the executable instructions.

[0022] According to another aspect of the present disclosure, there is also provided a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the control method of the dual-frequency remote radio unit of any of the above.

[0023] According to another aspect of the present disclosure, there is also provided a computer program product comprising a computer program, the computer program being executed by a processor to implement the control method of the dual-frequency remote radio unit of any of the above.

[0024] The dual-frequency remote radio unit based on narrowband transceiver devices and related methods and devices provided in embodiments of the present disclosure, on the basis of narrowband transceivers such as narrowband transceiver and narrowband transceiver amplifier, adopt a narrowband parallel transceiving processing architecture, which can convert the baseband signals of the first frequency band and / or the second frequency band sent by the baseband processing unit into analog radio frequency signals of the first frequency band and / or the second frequency band, and transmit the analog radio frequency signals through 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.

[0025] The dual-frequency remote radio unit provided in embodiments of the present disclosure adopts a parallel and independent control transceiving processing architecture to process transceiving signals of different frequency bands on the basis of meeting the power amplification of dual-frequency transceiving signals, reduces the mutual interference between dual-frequency signal transceiving, and improves the anti-spur and blocking capability.

[0026] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present disclosure, and together with the specification, serve to explain the principles of the present disclosure. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Figure 1 An application system architecture schematic diagram in embodiments of the present disclosure is shown;

[0029] Figure 2 A remote radio unit based on narrowband transceiver devices in embodiments of the present disclosure is shown;

[0030] Figure 3 An optional dual-frequency remote radio unit based on narrowband transceiver devices in embodiments of the present disclosure is shown;

[0031] Figure 4 An 800M+900M dual-frequency remote radio unit based on narrowband transceiver devices in embodiments of the present disclosure is shown;

[0032] Figure 5 A signal processing and spectrum shifting flowchart of an 800M+900M dual-frequency remote radio unit based on narrowband transceiver devices in embodiments of the present disclosure is shown;

[0033] Figure 6A flow chart of a control method of a dual-frequency remote radio unit in an embodiment of the present disclosure is shown.

[0034] Figure 7 A schematic diagram of a control device of a dual-frequency remote radio unit in an embodiment of the present disclosure is shown.

[0035] Figure 8 A structural block diagram of an electronic device in an embodiment of the present disclosure is shown.

[0036] Figure 9 A schematic diagram of a computer-readable storage medium in an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0037] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations.

[0038] In addition, the accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the present disclosure and serve to explain the principles of the present disclosure. The same reference numbers in different drawings represent the same or similar elements.

[0039] The specific implementations of the embodiments of the present disclosure will be described below in detail with reference to the accompanying drawings.

[0040] Figure 1 An exemplary application system architecture schematic diagram to which a remote radio unit in an embodiment of the present disclosure can be applied is shown. As shown, the system architecture can include a terminal 10 and a base station 20, wherein the base station 20 can include a baseband processing unit 201 and a remote radio unit 202. Figure 1

[0041] ​The medium providing the communication link between the terminal 10 and the base station 20 can be a wired network or a wireless network. In some embodiments, the wireless or wired network between the terminal 10 and the base station 20 can use standard communications techniques and / or protocols. The network is typically the Internet, but can also be any network, including, but not limited to, a Local Area Network (LAN), a Metropolitan Area Network (MAN), a Wide Area Network (WAN), a mobile, wired or wireless network, a private network, or any combination of the above. In some embodiments, techniques and / or formats including Hyper Text Mark-up Language (HTML), Extensible Markup Language (XML), and the like are used to represent data exchanged over the network. In addition, all or some of the links can be encrypted using conventional encryption technologies, such as the Secure Socket Layer (SSL), Transport Layer Security (TLS), Virtual Private Networks (VPN), Internet Protocol Security (IPSec), and so on. In other embodiments, custom and / or proprietary data communications technologies can be employed in place of, or in addition to, the above techniques and technologies.

[0042] In some embodiments, the terminal (User Equipment, UE) in the embodiments of the present disclosure can be a mobile phone, a Tablet Personal Computer, a Laptop Computer, a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device, or a vehicle-mounted device, and the like. It should be noted that the specific type of terminal is not limited in the embodiments of the present disclosure.

[0043] In some embodiments, the base station in the embodiments of the present disclosure can be a base station of any network. For example, a base station of 5G and later versions (for example: 5G NR NB), or a base station in other communication systems (for example: eNB base station), and the like. It should be noted that the specific type of base station is not limited in the embodiments of the present disclosure.

[0044] Those skilled in the art can know that, Figure 1The number of terminals, networks and base stations in the above system architecture is only illustrative, and any number of terminals, networks and base stations can be provided according to actual needs. The embodiments of the present disclosure do not limit this.

[0045] Under the above system architecture, a dual-frequency remote radio unit based on a narrowband transceiver is provided in the embodiments of the present disclosure, as shown in the figure. The dual-frequency remote radio unit 202 can include a baseband radio interface unit 2021, an antenna port 2026, and a first frequency band transceiving processing unit and a second frequency band transceiving processing unit connected in parallel between the baseband radio interface unit 2021 and the antenna port 2026. Figure 2

[0046] The baseband radio interface unit 2021 is connected with 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 dual-frequency remote radio unit 202 and the baseband processing unit 201. The first frequency band transceiving processing unit includes a first frequency band digital intermediate frequency module 2022a, a first frequency band transceiver 2023a, a first frequency band radio frequency low noise amplifier 2024a and a first frequency band radio frequency power amplifier 2025a, and is configured to implement amplification processing of the first frequency band transceiving signal. The second frequency band transceiving processing unit includes a second frequency band digital intermediate frequency module 2022b, a second frequency band transceiver 2023b, a second frequency band radio frequency low noise amplifier 2024a and a second frequency band radio frequency power amplifier 2025b, and is configured to implement amplification processing of the second frequency band transceiving signal. The antenna port 2026 is configured to transceive analog radio frequency signals of the first frequency band and / or the second frequency band.

[0047] Exemplarily, as shown in the figure, the first frequency band digital intermediate frequency module 2022a is connected with the baseband radio interface unit 2021, and is configured to convert the baseband signal of the first frequency band into a digital intermediate frequency signal of the first frequency band, or convert the digital intermediate frequency signal of the first frequency band into a baseband signal of the first frequency band. The first frequency band transceiver 2023a is located between the first frequency band digital intermediate frequency module 2022a and the antenna port 2026, and is configured to implement conversion between the digital intermediate frequency signal and the analog radio frequency signal. The first frequency band radio frequency low noise amplifier 2024a is connected between the first frequency band transceiver 2023a and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the first frequency band output by the first frequency band transceiver 2023a, and transmit the analog radio frequency signal out through the antenna port 2026. The first frequency band radio frequency power amplifier 2025a is connected between the first frequency band transceiver 2023a and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the first frequency band received by the antenna port 2026, and send the analog radio frequency signal to the first frequency band transceiver 2023a. Figure 3

[0048] Exemplarily, as shown in the figure, the second frequency band digital intermediate frequency module 2022b is connected with the baseband radio interface unit 2021, and is configured to convert the 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 second frequency band transceiver 2023b is located between the second frequency band digital intermediate frequency module 2022b and the antenna port 2026, and is configured to implement conversion between the digital intermediate frequency signal and the analog radio frequency signal. The second frequency band radio frequency low noise amplifier 2024b is connected between the second frequency band transceiver 2023b and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the second frequency band output by the second frequency band transceiver 2023b, and transmit the analog radio frequency signal out through the antenna port 2026. The second frequency band radio frequency power amplifier 2025b is connected between the second frequency band transceiver 2023b and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the second frequency band received by the antenna port 2026, and send the analog radio frequency signal to the second frequency band transceiver 2023b. Figure 3 ​​As shown, the second frequency band digital intermediate frequency module 2022b is connected with the baseband radio frequency interface unit 2021, and is configured to convert the baseband signal of the second frequency band into the digital intermediate frequency signal of the second frequency band, or convert the digital intermediate frequency signal of the second frequency band into the baseband signal of the second frequency band; the second frequency band transceiver 2023b is located between the second frequency band digital intermediate frequency module 2022b and the antenna port 2026, and is configured to realize the conversion between the digital intermediate frequency signal and the analog radio frequency signal; the second frequency band radio frequency low noise amplifier 2024a is connected between the second frequency band transceiver 2023b and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the second frequency band output by the second frequency band transceiver 2023b, and transmit the analog radio frequency signal of the second frequency band through the antenna port 2026; the second frequency band radio frequency power amplifier 2025b is connected between the second frequency band transceiver 2023b and the antenna port 2026, and is configured to amplify the analog radio frequency signal of the second frequency band received by the antenna port 2026, and send the analog radio frequency signal of the second frequency band to the second frequency band transceiver 2023b.

[0049] In some embodiments, if the dual-frequency remote radio unit 202 is used for transmitting signals, the dual-frequency remote radio unit 202 can receive the baseband signal of the first frequency band and / or the second frequency band output by the baseband processing unit 201 through the baseband radio frequency interface unit 2021, convert the baseband signal of the first frequency band output by the baseband processing unit 201 into the corresponding digital intermediate frequency signal through the first frequency band digital intermediate frequency module 2022a, convert the digital intermediate frequency signal output by the first frequency band digital intermediate frequency module 2022a into the corresponding analog radio frequency signal through the first frequency band transceiver 2023a, perform the pre-transmission amplification processing on the analog radio frequency signal through the first frequency band radio frequency low noise amplifier 2024a, and finally transmit the analog radio frequency signal through the antenna port 2026; convert the baseband signal of the first frequency band output by the baseband processing unit 201 into the corresponding digital intermediate frequency signal through the second frequency band digital intermediate frequency module 2022b, convert the digital intermediate frequency signal output by the second frequency band digital intermediate frequency module 2022b into the corresponding analog radio frequency signal through the second frequency band transceiver 2023b, perform the pre-transmission amplification processing on the analog radio frequency signal through the second frequency band radio frequency low noise amplifier 2024a, and finally transmit the analog radio frequency signal through the antenna port 2026;

[0050] In other embodiments, if the dual-band remote radio frequency unit 202 is used to receive signals, the dual-band remote radio frequency unit 202 can receive analog radio frequency signals of the first frequency band and / or the second frequency band through the antenna port 2026. The analog radio frequency signal of the first frequency band is received and amplified by the first frequency band radio frequency power amplifier 2025a. Then, the amplified analog radio frequency signal is converted into a corresponding digital intermediate frequency signal by the first frequency band transceiver 2023a. Finally, the first frequency band digital intermediate frequency module 2022a converts the signal into a digital intermediate frequency signal. The digital intermediate frequency signal output by 23a is converted into a corresponding baseband signal and sent to the baseband processing unit 201. The analog radio frequency signal of the second band is received and amplified by the second band radio frequency power amplifier 2025b. The analog radio frequency signal amplified by the second band radio frequency power amplifier 2025b is then converted into a corresponding digital intermediate frequency signal by the second band transceiver 2023b. The digital intermediate frequency signal output by the second band transceiver 2023b is converted into a corresponding baseband signal by the second band digital intermediate frequency module 2022b and sent to the baseband processing unit 201.

[0051] As can be seen from the above, the dual-band remote radio frequency unit and related methods and devices based on narrowband transceivers provided in the embodiments of this disclosure, based on narrowband transceivers and amplifiers, adopts a narrowband parallel transceiver processing architecture. This architecture can convert baseband signals from the first and / or second frequency bands emitted by the baseband processing unit into analog radio frequency signals of the first and / or second frequency bands, which are then transmitted through the antenna port. Alternatively, it can convert analog radio frequency signals from the first and / or second frequency bands received by the antenna port into baseband signals of the first and / or second frequency bands, which are then sent to the baseband processing unit. The dual-band remote radio frequency unit provided in the embodiments of this disclosure, while satisfying the power amplification requirements for dual-band transceiver signals, employs a parallel and independently controlled transceiver processing architecture to process transceiver signals from different frequency bands, reducing mutual interference between the two frequency bands and improving the ability to resist spurious signals and blocking.

[0052] In some embodiments, such as Figure 3 As shown, the dual-band remote radio frequency unit 202 in this embodiment may further include: a first-band radio frequency receiving filter 2027a and a first-band radio frequency transmitting filter 2028a; wherein, the first-band radio frequency receiving filter 2027a is located between the first-band radio frequency low-noise amplifier 2024a and the first-band transceiver 2023a, and is used to amplify and filter the received analog radio frequency signal; the first-band radio frequency transmitting filter 2028a is located between the first-band transceiver 2023a and the first-band radio frequency power amplifier 2025a, and is used to filter the analog radio frequency signal to be transmitted before amplification.

[0053] In some embodiments, such as Figure 3 As shown, the dual-band remote radio frequency unit 202 in this embodiment may further include: a first-band intermediate frequency (IF) transmit filter 2012a and a first-band IF receive filter 2011a; wherein, the first-band IF transmit filter 2012a is located between the first-band digital IF module 2022a and the first-band transceiver 2023a, and is used to filter the first-band digital IF signal to be transmitted; the first-band IF receive filter 2011a is located between the first-band digital IF module 2022a and the first-band transceiver 2023a, and is used to filter the received first-band digital IF signal.

[0054] In some embodiments, such as Figure 3 As shown, the dual-band remote radio frequency unit 202 in this embodiment may further include: a second-band radio frequency receiving filter 2027b and a second-band radio frequency transmitting filter 2028b; wherein, the second-band radio frequency receiving filter 2027b is located between the second-band radio frequency low-noise amplifier 2024a and the second-band transceiver 2023b, and is used to amplify and filter the received analog radio frequency signal; the second-band radio frequency transmitting filter 2028b is located between the second-band transceiver 2023b and the second-band radio frequency power amplifier 2025b, and is used to filter the analog radio frequency signal to be transmitted before amplification.

[0055] In some embodiments, such as Figure 3 As shown, the dual-band remote radio frequency unit 202 in this embodiment may further include: a second-band intermediate frequency (IF) transmit filter 2012b and a second-band IF receive filter 2011b; wherein, the second-band IF transmit filter 2012b is located between the second-band digital IF module 2022b and the second-band transceiver 2023b, and is used to filter the second-band digital IF signal to be transmitted; the second-band IF receive filter 2011b is located between the second-band digital IF module 2022b and the second-band transceiver 2023b, and is used to filter the received second-band digital IF signal.

[0056] In some embodiments, the dual-frequency remote radio unit 202 in the embodiments of the present disclosure can further include: a first frequency band radio frequency duplex filter 2029a, a second frequency band radio frequency duplex filter 2029b, and a dual-frequency radio frequency transceiver combiner 2010; wherein the first frequency band radio frequency duplex filter 2029a is connected with the first frequency band radio frequency low noise amplifier 2024a and the first frequency band radio frequency power amplifier 2025a respectively, and is used for filtering the analog radio frequency signals to be transmitted or received to obtain analog radio frequency signals of the first frequency band; the second frequency band radio frequency duplex filter 2029b is connected with the second frequency band radio frequency low noise amplifier 2024a and the second frequency band radio frequency power amplifier 2025b respectively, and is used for filtering the analog radio frequency signals to be transmitted or received to obtain analog radio frequency signals of the second frequency band; and the dual-frequency radio frequency transceiver combiner 2010 is connected with the first frequency band radio frequency duplex filter 2029a and the second frequency band radio frequency duplex filter 2029b and the antenna port 2026 respectively, and is used for inputting the analog radio frequency signals output by the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter to the antenna port 2026, or inputting the analog radio frequency signals received by the antenna port 2026 to the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter.

[0057] The dual-frequency remote radio unit provided in the embodiments of the present disclosure processes signals of the first frequency band through the first frequency band independent devices such as the first frequency band digital intermediate frequency module 2022a, the first frequency band intermediate frequency transmitting filter 2012a, the first frequency band intermediate frequency receiving filter 2011a, the first frequency band transceiver 2023a, the first frequency band radio frequency low noise amplifier 2024a, the first frequency band radio frequency power amplifier 2025a, the first frequency band radio frequency receiving filter 2027a, the first frequency band radio frequency transmitting filter 2028a, and the first frequency band radio frequency duplex filter 2029a; and processes signals of the second frequency band through the second frequency band independent devices such as the second frequency band digital intermediate frequency module 2022b, the second frequency band intermediate frequency transmitting filter 2012b, the second frequency band intermediate frequency receiving filter 2011b, the second frequency band transceiver 2023b, the second frequency band radio frequency low noise amplifier 2024b, the second frequency band radio frequency power amplifier 2025b, the second frequency band radio frequency receiving filter 2027b, the second frequency band radio frequency transmitting filter 2028b, and the second frequency band radio frequency duplex filter 2029b, so as to realize effective isolation of the signals of the first frequency band and the signals of the second frequency band.

[0058] The dual-frequency remote radio unit provided in the embodiments of the present disclosure utilizes the design architecture of the narrowband parallel transceiving processing channel, improves the dual-band signal transmission and reception isolation and suppression degree, improves the anti-spur and blocking capabilities, reduces mutual interference, improves the overall performance of the device, and has strong pertinence for the evolution of wireless networks towards 5G+. Through separate control of the narrowband transceiving channel, single opening of the first frequency band or the second frequency band, or dual opening or dual sleep (rest) of the first frequency band and the second frequency band can be realized, and the diversity, universality and flexibility of the dual-band remote radio unit are improved. The dual-frequency remote radio unit provided in the embodiments of the present disclosure has low complexity and is easy to implement and promote.

[0059] It should be noted that the first frequency band and the second frequency band in the embodiments of the present disclosure are two different frequency bands, which can have different configurations in different application scenarios, and the present disclosure does not make specific limitations thereto.

[0060] Since the transceiving signals of similar frequency bands are prone to mutual interference, in some embodiments, the first frequency band and the second frequency band in the embodiments of the present disclosure can be any two frequency ranges that are relatively close, 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.

[0061] In some embodiments, the dual-frequency remote radio unit provided in the embodiments of the present disclosure can be applied to but is not limited to a dual-frequency remote radio unit supporting 800M frequency band and 900M frequency band sharing. The first frequency band in the embodiments of the present disclosure can be the 800M frequency band (the supported frequency band range is 824-835MHz / 869-880MHz or 824-839MHz / 869-884MHz), and the second frequency band can be the 900M frequency band (the supported frequency band range is 885-915MHz / 930-960MHz or 889-915MHz / 934-960MHz).

[0062] It should be noted that 824-835MHz / 869-880MHz is the frequency range defined in the current protocol for the 800M frequency band, and 889-915MHz / 934-960MHz is the frequency range defined in the current protocol for the 900M frequency band. In actual implementation of the 800M+900M dual-frequency remote radio unit, the frequency range of the 800M frequency band and the 900M frequency band is extended as needed, 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 based on the narrowband transceiver device provided in the embodiments of the present disclosure supports both the frequency range defined in the current protocol and the extended frequency range.

[0063] Below, taking the first frequency band as 800MHz and the second frequency band as 900MHz as an example, combined with... Figure 4 and Figure 5 The embodiments of this disclosure will be described in detail below. Among them, Figure 4 The specific implementation architecture of the 800M+900M dual-band far-end radio frequency unit based on narrowband transceiver devices is shown. Figure 5 The signal processing and spectrum shifting process of an 800M+900M dual-band remote radio frequency unit based on narrowband transceivers is shown.

[0064] like Figure 4 As shown in the embodiments of this disclosure, the 800M+900M dual-band remote radio frequency unit (RRU) implemented based on narrowband transceivers can communicate with the 800M baseband processing unit (BBU) and the 900M baseband processing unit (BBU) respectively through the 800M and 900M dual-band baseband radio frequency interfaces, or communicate through the 800M and 900M combined baseband processing unit (BBU), to complete the conversion between baseband signals and radio frequency signals.

[0065] The 800M+900M dual-band remote radio unit (RRU) implemented based on narrowband transceivers in this embodiment includes: an 800M and 900M dual-band baseband radio frequency interface, an 800M and 900M narrowband digital intermediate frequency, an 800M and 900M narrowband transceiver, an 800M and 900M narrowband receive and transmit filters (low power), an 800M and 900M narrowband receive LNA low-noise amplifier, an 800M and 900M narrowband PA power amplifier, an 800M and 900M duplex filter (high power), and an 800M and 900M dual-band four-port transceiver combiner, forming a downlink signal processing link and an uplink signal processing link.

[0066] The modules of the 800M+900M dual-band remote radio unit (RRU) implemented based on narrowband transceivers are described below:

[0067] 1) 800M and 900M dual-band baseband radio frequency interface: responsible for 800M and 900M dual-band signal interface processing and part of baseband signal processing, output (transmit) baseband signal to 800M and 900M narrowband digital intermediate frequency, input (receive) baseband signal from 800M and 900M narrowband digital intermediate frequency; and through Ctl_1 and Ctl_2 control signals to control the opening and closing of 800M and 900M narrowband independent transceiver processing channels (modules controlled including 800M, 900M digital intermediate frequency, transceiver, radio frequency transmit and receive filter, radio frequency transmit and receive filter amplifier and radio frequency duplex filter, etc.), realize 800M or 900M single opening, 800M, 900M dual opening or dual sleep (sleep), improve 800M+900M NR RRU spread spectrum device diversity, versatility and flexibility, reduce 800M and 900M dual-band RRU power consumption, volume and cost, etc.

[0068] 2) 800M and 900M narrowband digital intermediate frequency: responsible for multi-channel 800M and 900M narrowband digital intermediate frequency reception (digital intermediate frequency demodulation into baseband signal) and transmission (baseband signal modulation into digital intermediate frequency) processing, as well as multi-channel 800M and 900M narrowband intermediate frequency reception filter independent processing and multi-channel 800M and 900M narrowband intermediate frequency transmission filter independent processing.

[0069] 3) 800M and 900M narrowband transceiver: responsible for multi-channel 800M narrowband analog radio frequency analog-to-digital conversion (ADC) to 800M narrowband digital radio frequency, and responsible for multi-channel 800M narrowband digital radio frequency down conversion (DDC) to 800M narrowband digital intermediate frequency; responsible for multi-channel 900M narrowband analog radio frequency analog-to-digital conversion (ADC) to 900M narrowband digital radio frequency, and responsible for multi-channel 900M narrowband digital radio frequency down conversion (DDC) to 900M narrowband digital intermediate frequency; responsible for multi-channel 800M narrowband digital intermediate frequency up conversion (DUC) to 800M narrowband digital radio frequency, and responsible for 800M narrowband digital radio frequency digital-to-analog conversion (DAC) to 800M narrowband analog radio frequency; responsible for multi-channel 900M narrowband digital intermediate frequency up conversion (DUC) to 900M narrowband digital radio frequency, and responsible for 900M narrowband digital radio frequency digital-to-analog conversion (DAC) to 900M narrowband analog radio frequency.

[0070] It should be noted that in the embodiments of the present disclosure, 800M and 900M use independent NCO (Numerically Controlled Oscillato, digital controlled oscillator) respectively, that is, a total of 2 NCOs are used for independent debugging, running and upgrading, which can improve flexibility, ease of use and maintainability.

[0071] 4) 800M and 900M narrowband receive and transmit filter (low power): after receiving and amplifying the 800M and 900M narrowband analog radio frequency signals, respectively, filtering and transmitting amplification, auxiliary and sharing the following 800M and 900M duplex filter (high power) suppression level index, together improve the ability to resist spurious and blocking, etc., reduce the power consumption, volume and cost of 800M and 900M dual-band RRU, etc.

[0072] It should be noted that in addition to supporting 800M and 900M narrowband transmit filters placed before (transmit) power amplifiers (low power), respectively, the embodiments of the present disclosure also support 800M and 900M narrowband transmit filters placed after 800M and 900M dual-band four-port transceiver combiners (high power), respectively; when high power is placed, 800M and 900M narrowband transmit filters can be built-in or external to RRU, which can better filter mutual interference and improve the overall performance of 800M and 900M dual-band RRU devices, while being beneficial to the maintenance and optimization of 800M and 900M dual-band RRU devices, i.e. without the need to open 800M and 900M dual-band RRU, 800M and 900M narrowband transmit external filters can be debugged, maintained, upgraded or optimized.

[0073] 5) 800M and 900M narrowband receive LNA low noise amplifier: the received 800M and 900M narrowband analog radio frequency signals are respectively low-noise amplified, and the 800M and 900M narrowband receive low-noise amplifiers are independent of each other, isolated from each other, reducing mutual interference and improving 800M and 900M radio frequency signal reception sensitivity.

[0074] 6) 800M and 900M narrowband PA power amplifier: the 800M and 900M narrowband analog radio frequency signals to be transmitted are respectively power amplified, independent of each other, reducing the power amplifier characteristics and specification requirements, such as reducing the bandwidth and output power requirements of a single tube amplifier, making it easier to improve the overall output power of the system and reducing the difficulty of implementation of the scheme; isolated from each other, reducing mutual interference and improving the coverage range of 800M and 900M radio frequency signals.

[0075] 7) 800M and 900M duplex filter (high power): the 800M and 900M narrowband analog radio frequency signals are respectively filtered before receiving and amplifying and filtered after transmitting amplification, a multi-cavity multi-zero point metal cavity filter is used, mainly to improve the 800M and 900M transmission and reception isolation and suppression level, improve the ability to resist spurious and blocking, etc., improve the anti-interference ability and device performance of 800M and 900M dual-band RRU, etc.

[0076] 8) 800M and 900M dual-band four-port transceiving combiner: multi-channel parallel 800M and 900M dual-band (800M and 900M) four-port transceiving radio frequency (RF) combiner for 800M and 900M dual-band RF signals; forming 800M+900M dual-band RF signals without interference, which are output to 800M+900M dual-band antennas for 800M+900M dual-band RF receiving and transmitting.

[0077] It should be noted that in addition to the 800M and 900M dual-band four-port transceiving combiner, the embodiments of the present disclosure also support 800M or 900M single-band transceiving two-port transceiving combiner + 800M and 900M dual-band two-port transceiving combiner two-stage transceiving combination; the former has high cost, small size, but small insertion loss; the latter has low cost, but large size and large insertion loss.

[0078] The 800M+900M dual-band remote radio unit based on narrowband transceiving devices provided in the embodiments of the present disclosure needs to meet the requirements of 800M and 900M coexistence, spurious and blocking indicators in the co-site scenario, and the 800M+900M dual-band RRU device is more demanding on spurious and blocking indicators, which will inevitably cause the power consumption, size, weight and cost of the 800M+900M dual-band RRU device to increase dramatically.

[0079] The 800M+900M dual-band remote radio unit based on narrowband transceiving devices provided in the embodiments of the present disclosure adopts an 800M, 900M wide and narrow band hybrid architecture design, improves the performance of the 800M and 900M dual-band RRU device, improves the 800M, 900M transmission and reception isolation and suppression, improves the anti-spurious and blocking capabilities, reduces mutual interference and device performance, improves the coverage range of the dual-band RRU, controls the single and dual-band working mode, reduces the power consumption, size and cost of the dual-band RRU, and reduces the construction, operation and optimization cost of the dual-band RRU device, realizes low complexity, and is conducive to the implementation and promotion of the 800M+900M dual-band RRU device.

[0080] Based on the same inventive concept, the embodiments of the present disclosure also provide a base station, as shown in Figure 1 The base station can include a baseband processing unit 201 and a dual-band remote radio unit 202 of any of the above.

[0081] Based on the same inventive concept, the embodiments of the present disclosure also provide a communication system, as shown in Figure 1 The communication system can include a terminal 10 and a base station 20, wherein the base station 20 includes a baseband processing unit 201 and a dual-band remote radio unit 202 of any of the above.

[0082] Based on the same inventive concept, this disclosure also provides a control method for a dual-band remote radio frequency unit. This control method is used to control the dual-band remote radio frequency unit 202 of any of the above-mentioned items. In principle, this control method can be executed by any electronic device with computing processing capabilities.

[0083] Figure 6 This diagram illustrates a control method flowchart for a dual-band remote radio frequency unit according to an embodiment of the present disclosure, as follows: Figure 6 As shown, the control method includes the following steps:

[0084] S602, configure a first control signal and a second control signal, wherein the first control signal is used to control the start-up or shutdown of the independent device of the first frequency band in the dual-band remote radio frequency unit, and the second control signal is used to control the start-up or shutdown of the independent device of the second frequency band in the dual-band remote radio frequency unit;

[0085] S604, based on the configured first and second control signals, starts or stops the corresponding devices in the dual-band remote radio frequency unit.

[0086] In this embodiment of the present disclosure, the first control signal and the second control signal are as follows: Figure 3 As shown in Ctl_1 and Ctl_2, the first control signal (Ctl_1) is used to control the first band digital intermediate frequency module 2022a, the first band intermediate frequency transmit filter 2012a, the first band intermediate frequency receive filter 2011a, the first band transceiver 2023a, the first band RF low noise amplifier 2024a, the first band RF power amplifier 2025a, the first band RF receive filter 2027a, the first band RF transmit filter 2028a, and the first band RF duplex filter 2029a, etc., within the remote RF unit 202. The second control signal (Ctl_2) is used to control the startup or shutdown of the independent devices in the remote radio unit 202, including the second-band digital intermediate frequency module 2022b, the second-band intermediate frequency transmit filter 2012b, the second-band intermediate frequency receive filter 2011b, the second-band transceiver 2023b, the second-band radio frequency low-noise amplifier 2024b, the second-band radio frequency power amplifier 2025b, the second-band radio frequency receive filter 2027b, the second-band radio frequency transmit filter 2028b, and the second-band radio frequency duplex filter 2029b.

[0087] It can be seen that the opening and closing of the independent parts (the controlled modules include 800M, 900M digital intermediate frequency narrowband parts, radio frequency duplex filters and radio frequency transceiver combiners) in the 800M and 900M broadband hybrid transceiver processing channels are controlled by Ctl_1 and Ctl_2 control signals, so that 800M or 900M single opening, 800M, 900M double opening or double sleep (sleep) can be realized, the diversity, universality and flexibility of the 800M+900M NR RRU spread spectrum device are improved, and the power consumption, volume and cost of the 800M and 900M dual-frequency RRUs are reduced.

[0088] The Ctl_1 and Ctl_2 control signals are designed as follows:

[0089] 1) Ctl_1=1 and Ctl_2=0, the 800M narrowband independent transceiver processing channel is opened, the 900M narrowband independent transceiver processing channel is closed, and the 800M single frequency works;

[0090] 2) Ctl_1=0 and Ctl_2=1, the 800M narrowband independent transceiver processing channel is closed, the 900M narrowband independent transceiver processing channel is opened, and the 900M single frequency works;

[0091] 3) Ctl_1=1 and Ctl_2=1, both of the 800M and 900M two narrowband independent transceiver processing channels are opened, and the 800M+900M dual frequency works simultaneously;

[0092] 4) Ctl_1=0 and Ctl_2=0, both of the 800M and 900M two narrowband independent transceiver processing channels are closed, and the 800M+900M dual frequency is simultaneously powered off or sleeps.

[0093] It can be seen that the 800M+900M dual-frequency remote radio unit based on the narrowband transceiver device provided in the embodiment of the present disclosure can realize 800M or 900M single opening, and 800M, 900M double opening or double sleep (sleep) through the control of the control signal, and improve the diversity, universality and flexibility of the 800M+900M NR RRU spread spectrum device.

[0094] As can be seen from the above, the 800M+900M dual-frequency remote radio unit provided in the embodiments of the present disclosure is based on narrowband transceiver devices such as narrowband transceivers and narrowband transceiver amplifiers, and adopts the design architecture of 800M and 900M narrowband independent parallel transceiving processing channels, which greatly improves the 800M and 900M transmission and reception isolation and suppression, improves the ability to resist spurs and blockage, reduces mutual interference and device performance, improves the coverage range of the dual-frequency RRU, and realizes the control of 800M or 900M single opening, 800M and 900M dual opening or dual sleep (sleep) through the control signal, improves the diversity, universality and flexibility of the 800M+900M NR dual-frequency RRU device, and through the cooperation of the 800M and 900M narrowband receiving and transmitting filters (low power) and the 800M and 900M duplex filters (high power) before and after, the suppression index is shared, the ability to resist spurs and blockage is improved, the anti-interference ability and device performance are improved, and the power consumption, volume and cost of the 800M+900M NR dual-frequency RRU are reduced, thereby reducing the construction, operation and optimization cost of the 800M+900M NR dual-frequency RRU device, which is beneficial to the implementation of the 800M+900M NR dual-frequency RRU device, and has important deployment significance and application value.

[0095] Based on the same inventive concept, the embodiments of the present disclosure also provide a control device of a dual-frequency remote radio unit, which is used to control the dual-frequency remote radio unit 202 of any one of the above. As described in the embodiments below. Since the problem solving principle of the device embodiment is similar to that of the above method embodiment, the implementation of the device embodiment can be referred to the implementation of the above method embodiment, and the repeated parts will not be described here.

[0096] Figure 7 A schematic diagram of a control device of a dual-frequency remote radio unit in the embodiments of the present disclosure is shown, as shown in Figure 7 The device includes a signal configuration module 701 and a control module 702.

[0097] The signal configuration module 701 is configured to configure a first control signal and a second control signal, wherein the first control signal is used to control the start or shutdown of the first frequency band independent device in the dual-frequency remote radio unit, and the second control signal is used to control the start or shutdown of the second frequency band independent device in the dual-frequency remote radio unit; the control module 702 is configured to start or shutdown the corresponding device in the dual-frequency remote radio unit according to the configured first control signal and second control signal.

[0098] It should be noted that the signal configuration module 701 and the control module 702 correspond to S602-S604 in the method embodiment, and the modules and the examples and application scenarios implemented by the corresponding steps are the same, but are not limited to the disclosed content of the above method embodiment. It should be noted that the modules as part of the device can be executed in a computer system such as a group of computer executable instructions.

[0099] Those skilled in the art can understand that various aspects of the present disclosure can be implemented as a system, a method or a program product. Therefore, various aspects of the present disclosure can be embodied as a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software aspects, which can be collectively referred to as "circuitry", "module" or "system" here.

[0100] The electronic device 800 according to this embodiment of the present disclosure will be described below with reference to Figure 8 Figure 8 The display electronic device 800 is only an example and should not bring any limitation to the function and use range of the embodiments of the present disclosure.

[0101] As shown in Figure 8 , the electronic device 800 is in the form of a general computing device. The components of the electronic device 800 can include but are not limited to the above-mentioned at least one processing unit 810, the above-mentioned at least one storage unit 820, and a bus 830 connecting different system components including the storage unit 820 and the processing unit 810.

[0102] The storage unit stores program code which can be executed by the processing unit 810, so that the processing unit 810 performs the steps according to various exemplary embodiments of the present disclosure described in the above "Exemplary Method" section of the present specification. For example, the processing unit 810 can perform the following steps of the above method embodiment: configuring a first control signal and a second control signal, wherein the first control signal is used to control the start or stop of the first frequency band independent device in the dual-frequency remote radio unit, and the second control signal is used to control the start or stop of the second frequency band independent device in the dual-frequency remote radio unit; starting or stopping the corresponding device in the dual-frequency remote radio unit according to the configured first control signal and second control signal.

[0103] The storage unit 820 can include a readable medium in the form of a volatile storage unit, such as a random access memory (RAM) 8201 and / or a cache memory unit 8202, and can further include a read-only memory (ROM) 8203.

[0104] ​The storage unit 820 can also include a program / utility 8204 having a set of programs / modules 8205, each of which performs one or more tasks. The programs and modules 8205 can include an operating system, one or more application programs, other program modules, and program data, each of which or a combination thereof, can include implementation of the network environment.

[0105] The bus 830 can represent one or more of several types of bus structures, including a storage bus or bus controller, a peripheral bus, an accelerated graphics port, an Industry Standard Architecture (ISA) bus, a Micro Channel Architecture (MCA) bus, a Video Electronics Standards Association (VESA) local bus, and a proprietary bus implementing a variety of protocols that are frequently used in computing.

[0106] The electronic device 800 can also communicate with one or more external devices 840 such as a keyboard or pointing device, a Bluetooth device, or a Universal Serial Bus (USB) device. Additionally, the electronic device 800 can communicate with one or more devices that enable a user to interact with the electronic device 800, such as a display, a sound card, a speaker, a monitor, a printer, or a television, or one or more devices that enable the electronic device 800 to communicate with one or more other computing devices. Such communication can occur via an input / output (I / O) interface 850. Still yet, the electronic device 800 can communicate with one or more networks, such as one or more local area networks (LANs), one or more wide area networks (WANs), and / or one or more public networks, such as the Internet, via the network adapter 860. As depicted, the network adapter 860 communicates with the other components of the electronic device 800 via the bus 830. It should be appreciated that the electronic device 800 can be a part of one or more networks, such as a cloud network, and can communicate with one or more other computing devices in such a network.

[0107] Those skilled in the art will readily understand that the example embodiments described herein can be implemented by software and / or by hardware coupled with software, as described above. Thus, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, a USB flash disk, a mobile hard disk, or the like) or a network, and includes a number of instructions that cause a computing device (such as a personal computer, a server, a terminal device, or a network device, etc.) to perform the methods according to the embodiments of the present disclosure.

[0108] In particular, according to the embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer program product, which includes a computer program that, when executed by a processor, implements the control method of the dual-frequency remote radio unit.

[0109] In the exemplary embodiments of the present disclosure, a computer readable storage medium is also provided, which can be a readable signal medium or a readable storage medium. Figure 9 A schematic diagram of a computer readable storage medium in an embodiment of the present disclosure is shown in FIG. 9. Figure 9 As shown, the computer readable storage medium 900 stores a program product capable of implementing the method of the present disclosure. In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product, which includes program codes for causing the terminal device to perform the steps described in the “Exemplary Methods” section above according to various exemplary embodiments of the present disclosure when the program product is run on the terminal device.

[0110] More specific examples of the computer readable storage medium in the present disclosure can 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.

[0111] In the present disclosure, the computer readable storage medium can include a data signal carried in the baseband or as a part of a carrier wave propagating through the program codes, in which the readable program codes are borne. Such a propagating data signal can take various forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. The readable signal medium can also be any readable medium other than the readable storage medium, which can send, propagate or transmit programs for use by or in connection with an instruction execution system, apparatus or device.

[0112] Optionally, the program codes contained on the computer readable storage medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0113] In particular embodiments, the program code utilized by the program code instructions can be written in any of a number of programming languages, including an object oriented programming language such as Java, C++, or the like; and conventional procedural programming languages; or combinations of the above. The program code can execute entirely on the user's computing device, partly on the user's computing device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider (ISP).

[0114] It should be noted that, although several modules or units of the devices for action execution are mentioned in the foregoing detailed description, such division is not mandatory. Indeed, features and functionalities of two or more modules or units described above can be embodied in one module or unit according to embodiments of the present disclosure. Conversely, features and functionalities of one module or unit described above can be further divided into multiple modules or units.

[0115] Furthermore, although various steps of the methods in the present disclosure are described in a particular order in the accompanying drawings, this does not require or imply that the steps must be performed in that particular order, or that all of the steps must be performed to achieve the desired results. Additionally or alternatively, certain steps can be omitted, multiple steps can be combined into one step, one step can be split into multiple steps, and / or the like.

[0116] From the above description of the embodiments, those skilled in the art will readily perceive that the example embodiments described herein can be implemented by software and / or by hardware and / or by a combination of software and hardware. Accordingly, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product. The software product can be stored in a non-volatile storage medium, such as a CD-ROM, a USB flash drive, a mobile hard disk, or the like, or on a network, and includes a number of instructions for causing a computing device (such as a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the methods according to the embodiments of the present disclosure.

[0117] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the disclosure be construed as including any patents, patent applications, publications, publications, or other disclosure of complementary subject matter that is within the scope of the disclosure. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A dual-band remote radio unit based on narrow-band transceiver devices, characterized by, Comprise: A baseband radio frequency interface unit, an antenna port, and a first frequency band transceiving processing unit, a second frequency band transceiving processing unit connected in parallel between the baseband radio frequency interface unit and the antenna port; Wherein, the baseband radio frequency interface unit is connected with a baseband processing unit, and is used for transmitting a first frequency band and / or a second frequency band baseband signal between the dual-frequency remote radio unit and the baseband processing unit; The first frequency band transceiving processing unit comprises a first frequency band digital intermediate frequency module, a first frequency band transceiver, a first frequency band radio frequency low noise amplifier and a first frequency band radio frequency power amplifier, and is used for realizing first frequency band transceiving signal amplification processing; The second frequency band transceiving processing unit comprises a second frequency band digital intermediate frequency module, a second frequency band transceiver, a second frequency band radio frequency low noise amplifier and a second frequency band radio frequency power amplifier, and is used for realizing second frequency band transceiving signal amplification processing; The antenna port is used for transceiving a first frequency band and / or a second frequency band analog radio frequency signal; Wherein, the dual-frequency remote radio unit further comprises a first frequency band radio frequency duplex filter, a second frequency band radio frequency duplex filter and a dual-frequency band radio frequency transceiving combiner; The first frequency band radio frequency duplex filter is connected with the first frequency band radio frequency low noise amplifier and the first frequency band radio frequency power amplifier respectively, and is used for filtering the analog radio frequency signal to be transmitted or received, to obtain a first frequency band analog radio frequency signal; The second frequency band radio frequency duplex filter is connected with the second frequency band radio frequency low noise amplifier and the second frequency band radio frequency power amplifier respectively, and is used for filtering the analog radio frequency signal to be transmitted or received, to obtain a second frequency band analog radio frequency signal; The dual-frequency band radio frequency transceiving combiner is connected with the first frequency band radio frequency duplex filter, the second frequency band radio frequency duplex filter and the antenna port respectively, and is used for inputting the analog radio frequency signal output by the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter to the antenna port, or inputting the analog radio frequency signal received by the antenna port to the first frequency band radio frequency duplex filter and / or the second frequency band radio frequency duplex filter; The dual-frequency band radio frequency transceiving combiner is a four-port transceiving combiner.

2. The dual-frequency remote radio unit according to claim 1, wherein The first frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit, and is used for converting a first frequency band baseband signal into a first frequency band digital intermediate frequency signal, or converting a first frequency band digital intermediate frequency signal into a first frequency band baseband signal; The first frequency band transceiver is located between the first frequency band digital intermediate frequency module and the antenna port, and is used for realizing conversion between a digital intermediate frequency signal and an analog radio frequency signal; The first frequency band radio frequency low noise amplifier is connected between the first frequency band transceiver and the antenna port, and is used for amplifying the first frequency band analog radio frequency signal output by the first frequency band transceiver, and transmitting the first frequency band analog radio frequency signal out through the antenna port; The first frequency band radio frequency power amplifier is connected between the first frequency band transceiver and the antenna port, and is configured to amplify the analog radio frequency signal of the first frequency band received by the antenna port and send to the first frequency band transceiver.

3. The dual-band remote radio unit of claim 2, wherein, The dual-frequency remote radio unit further comprises a first frequency band radio frequency receiving filter and a first frequency band radio frequency transmitting filter. The first frequency band radio frequency receiving filter is located between the first frequency band radio frequency low noise amplifier and the first frequency band transceiver, and is configured to filter the amplified analog radio frequency signal. The first frequency band radio frequency transmitting filter is located between the first frequency band transceiver and the first frequency band radio frequency power amplifier, and is configured to filter the analog radio frequency signal to be transmitted.

4. The dual-band remote radio unit of claim 2, wherein, The dual-frequency remote radio unit further comprises a first frequency band intermediate frequency transmitting filter and a first frequency band intermediate frequency receiving filter. The first frequency band intermediate frequency transmitting filter is located between the first frequency band digital intermediate frequency module and the first frequency band transceiver, and is configured to filter the digital intermediate frequency signal of the first frequency band to be transmitted. The first frequency band intermediate frequency receiving filter is located between the first frequency band digital intermediate frequency module and the first frequency band transceiver, and is configured to filter the received digital intermediate frequency signal of the first frequency band.

5. The dual-frequency remote radio unit of claim 1, wherein The second frequency band digital intermediate frequency module is connected with the baseband radio frequency interface unit, and is configured to convert the baseband signal of the second frequency band into the digital intermediate frequency signal of the second frequency band, or convert the digital intermediate frequency signal of the second frequency band into the baseband signal of the second frequency band. The second frequency band transceiver is located between the second frequency band digital intermediate frequency module and the antenna port, and is configured to realize conversion between the digital intermediate frequency signal and the analog radio frequency signal. The second frequency band radio frequency low noise amplifier is connected between the second frequency band transceiver and the antenna port, and is configured to amplify the analog radio frequency signal of the second frequency band output by the second frequency band transceiver and transmit the analog radio frequency signal through the antenna port. The second frequency band radio frequency power amplifier is connected between the second frequency band transceiver and the antenna port, and is configured to amplify the analog radio frequency signal of the second frequency band received by the antenna port and send to the second frequency band transceiver.

6. The dual-band remote radio unit of claim 5, wherein, The dual-frequency remote radio unit further comprises a second frequency band radio frequency receiving filter and a second frequency band radio frequency transmitting filter. The second frequency band radio frequency receiving filter is located between the second frequency band radio frequency low noise amplifier and the second frequency band transceiver, and is configured to filter the amplified analog radio frequency signal. The second frequency band radio frequency transmitting filter is located between the second frequency band transceiver and the second frequency band radio frequency power amplifier, and is configured to filter the analog radio frequency signal to be transmitted.

7. The dual-band remote radio unit of claim 5, wherein, The dual-frequency remote radio unit further comprises a second frequency band intermediate frequency transmitting filter and a second frequency band intermediate frequency receiving filter. The second frequency band intermediate frequency transmitting filter is located between the second frequency band digital intermediate frequency module and the second frequency band transceiver, and is used for filtering the digital intermediate frequency signal of the second frequency band to be transmitted. The second frequency band intermediate frequency receiving filter is located between the second frequency band digital intermediate frequency module and the second frequency band transceiver, and is used for filtering the digital intermediate frequency signal of the second frequency band received.

8. The dual-band remote radio unit of claim 1, wherein, The first frequency band is 800M frequency band, and the second frequency band is 900M frequency band.

9. A base station, characterized by, The base station comprises: The base station comprises:

10. A communication system, characterized by The terminal comprises: The control method is used for controlling the dual-frequency remote radio frequency unit, and comprises:

11. A control method of a dual-band remote radio unit, characterized by, The first control signal is used for controlling the start or stop of the first frequency band independent device in the dual-frequency remote radio frequency unit, and the second control signal is used for controlling the start or stop of the second frequency band independent device in the dual-frequency remote radio frequency unit. According to the configured first control signal and second control signal, the corresponding device in the dual-frequency remote radio frequency unit is started or stopped. The control device is used for controlling the dual-frequency remote radio frequency unit, and comprises:

12. A control device of a dual-band remote radio unit, characterized by The signal configuration module is used for configuring the first control signal and the second control signal, wherein the first control signal is used for controlling the start or stop of the first frequency band independent device in the dual-frequency remote radio frequency unit, and the second control signal is used for controlling the start or stop of the second frequency band independent device in the dual-frequency remote radio frequency unit. The control module is used for starting or stopping the corresponding device in the dual-frequency remote radio frequency unit according to the configured first control signal and second control signal. The base station comprises:

13. An electronic device, comprising: The processor; And The memory is used for storing the executable instructions of the processor. The processor is configured to execute the control method of the dual-frequency remote radio frequency unit by executing the executable instructions. The computer program is executed by the processor to realize the control method of the dual-frequency remote radio frequency unit.

14. A computer-readable storage medium having stored thereon a computer program, characterized in that, ​

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