WO2018000507A1 - Circuit de transmission radiofréquence, procédé de commande, et terminal mobile - Google Patents
Circuit de transmission radiofréquence, procédé de commande, et terminal mobile Download PDFInfo
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- WO2018000507A1 WO2018000507A1 PCT/CN2016/092531 CN2016092531W WO2018000507A1 WO 2018000507 A1 WO2018000507 A1 WO 2018000507A1 CN 2016092531 W CN2016092531 W CN 2016092531W WO 2018000507 A1 WO2018000507 A1 WO 2018000507A1
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- port
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- matching circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Definitions
- the present application relates to the field of communications, for example, to a radio frequency transmitting circuit, a control method, and a mobile terminal.
- the embodiment of the present application provides a radio frequency transmitting circuit, a control method, and a mobile terminal, so as to reduce the space of the radio frequency circuit PCB and reduce the difficulty of the radio frequency circuit PCB.
- the first aspect of the present application provides a radio frequency transmitting circuit, including:
- Radio frequency transceiver central processing unit, first matching circuit, power amplifier, second matching circuit, matching control module, first switch, duplexer, filter, second switch, third matching circuit, coupler and antenna;
- the first port of the radio frequency transceiver is connected to the first port of the coupler, and the second port of the radio frequency transceiver is connected to the first port of the first matching circuit, where the radio frequency transceiver is a third port is connected to the third port of the central processing unit;
- the first port of the central processing unit is a first port of the power amplifier, the second port of the central processor is coupled to the second port of the matching control module;
- the second port of the first matching circuit is coupled to the second port of the power amplifier a third port of the power amplifier is connected to a third port of the second matching circuit;
- a first port of the second matching circuit is connected to a first port of the matching control module, the second matching circuit
- the second port is connected to the second port of the first switch;
- the first port of the first switch is connected to the first port of the duplexer, the third port of the first switch is connected to the filter
- the first port of the duplexer is connected to the third port of the matching control module, and the third port
- the first switch and the second switch are single pole double set switches.
- the first matching circuit is Type matching circuit.
- the second matching circuit is Type matching circuit.
- the second matching circuit is based on the The topology circuit of the type matching circuit.
- the third matching circuit is Type matching circuit.
- the third matching circuit is based on the The topology circuit of the type matching circuit.
- the The type matching circuit includes a programmable inductor and a programmable capacitor connected to each of the programmable inductors.
- the The topology circuit of the type matching circuit includes at least two programmable inductors and programmable capacitors respectively coupled across the programmable inductor.
- the duplexer is a programmable duplexer.
- the filter is a programmable filter.
- the second aspect of the present application provides a method for controlling a radio frequency transmitting circuit of a radio frequency transmitting circuit according to the first embodiment of the present application and the first embodiment of the present application, including:
- the central processor acquires a current working frequency band of the radio frequency transmitting circuit; the central processor sends a control command that carries the current working frequency band to the matching control module; and the matching control module extracts a current working frequency band in the control command; And the matching control module adjusts the second matching circuit based on the current working frequency band and the mapping relationship between the pre-stored working frequency band and the working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit. Operating parameters of the duplexer, the filter, and the third matching circuit to cause the adjusted second matching circuit, the duplexer, the filter, and the third matching The operating parameters of the circuit match the current operating frequency band of the RF transmitting circuit.
- the third aspect of the present application provides a mobile terminal based on the radio frequency transmitting circuit according to the first embodiment of the present application and any aspect of the first embodiment of the present application.
- the embodiment of the present application further provides a non-transitory computer readable storage medium storing computer executable instructions for performing the above method.
- the central processing unit acquires a current working frequency band of the radio frequency transmitting circuit, and the central processing unit sends, to the matching control module, a control instruction that carries the current working frequency band, so that the The matching control module extracts a current working frequency band in the control instruction, and based on the current working frequency band and a mapping relationship between the pre-stored working frequency band and the working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit Adjusting operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit, so that the adjusted second matching circuit, the duplexer, and the The operating parameters of the filter and the third matching circuit match the current operating frequency band of the radio frequency transmitting circuit.
- FIG. 1 is a schematic structural diagram of a radio frequency transmitting circuit according to a first embodiment of the present application
- FIG. 2 is a schematic structural diagram of a radio frequency transmitting circuit according to a second embodiment of the present application.
- FIG. 3 is a schematic structural diagram of a method for controlling a radio frequency transmitting circuit according to a third embodiment of the present application.
- FIG. 4 is a schematic structural diagram of a mobile terminal according to a fourth embodiment of the present application.
- references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application.
- the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.
- FIG. 1 is a schematic structural diagram of a radio frequency transmitting circuit according to a first embodiment of the present disclosure.
- the radio frequency transmitting circuit in the embodiment of the present application includes the following modules:
- Radio frequency transceiver WTR central processing unit CPU, first matching circuit, power amplifier PA, second matching circuit, matching control module, first switch SP2T1, duplexer, filter, second switch SP2T2, third matching circuit, Coupler and antenna;
- the antenna function is to convert the high frequency electromagnetic wave into a high frequency signal current;
- the third matching circuit is mainly used to complete the power matching between the main board and the antenna, so that the efficiency of the antenna is as high as possible;
- duplexer In analog mobile communication devices (such as ETACS mobile phones, walkie-talkies) and CDMA mobile phones and FDD WCDMA mobile phones using frequency division duplex (FDD) technology, the antenna circuit part usually uses duplexers (DUP, DUPLEX) to separate the receiving and transmitting.
- RF signal In analog mobile communication devices (such as ETACS mobile phones, walkie-talkies) and CDMA mobile phones and FDD WCDMA mobile phones using frequency division duplex (FDD) technology, the antenna circuit part usually uses duplexers (DUP, DUPLEX) to separate the receiving and transmitting.
- RF signal RF signal.
- a duplexer also called a duplex filter, is a passive device that internally includes a transmit filter and a receive filter, both of which are bandpass filters that separate the received RF signal from the transmitted RF signal. Prevent strong transmit signals from affecting the receiver.
- the receiving filter prevents the transmitted signal from being strung into the receiving level, and also rejects signals other than the receiving frequency band received by the antenna; and the transmitting filter rejects the noise power of the receiving frequency band and transmits the modulated signal.
- the RF transceiver WTR is the core component of the RF circuit, which mainly performs the adjustment and demodulation of the RF signal.
- a first port of the radio frequency transceiver is connected to a first port of the coupler, a second port of the radio frequency transceiver is connected to a first port of the first matching circuit, and a third port of the radio frequency transceiver a port is coupled to a third port of the central processor; a first port of the central processor is coupled to a first port of the power amplifier, a second port of the central processor is coupled to a first of the matching control module a second port connection; a second port of the first matching circuit is coupled to a second port of the power amplifier; a third port of the power amplifier is coupled to a third port of the second matching circuit; a first port of the matching circuit is connected to the first port of the matching control module, a second port of the second matching circuit is connected to a second port of the first switch; a first port of the first switch is a first port of the duplexer is connected, a third port of the first switch is connected to a first port of the filter; a second port of the duplexer
- the central processor acquires a current working frequency band of the radio frequency transmitting circuit, and the central processor sends a control instruction that carries the current working frequency band to the matching control module, so that the matching control module extracts the control command.
- Adjusting the second matching circuit and the current operating frequency band based on the current working frequency band and the mapping relationship between the pre-stored working frequency band and the operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit
- Operating parameters of the duplexer, the filter, and the third matching circuit to adjust the second matching circuit, the duplexer, the filter, and the third matching circuit
- the operating parameters match the current operating frequency band of the RF transmitting circuit.
- the output end of the power amplifier PA is connected to the second matching circuit, and the second matching circuit
- a programmable capacitor inductor is used as the matching device for the match bit, and a dual L-type matching circuit can be used to meet the multi-dimensional requirements of RF debugging.
- the duplexer and filter can also be programmed with a bandwidth selectable. Band-selectable duplexer and filter for filtering and debugging in different frequency bands using a duplexer and filter, and switching between different frequency bands of time division and frequency division by single-pole double-throw (SP2T) switch.
- SP2T single-pole double-throw
- the radio frequency transmitting circuit in the embodiment of the present application adds a module in the conventional radio frequency circuit, that is, the matching control module, to realize the selection of the matching capacitor value and the inductance value in different frequency bands, the central processing unit CPU
- the control matching control chip selects the matching capacitance value and the inductance value.
- the duplexer and the filter back end also use a programmable capacitor inductance, and also uses a double L-type matching circuit to meet the circuit diversity requirement.
- Adjusting the mapping relationship between the working frequency band and the operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit, adjusting the second matching circuit, the duplexer, the filter, and the The process of mapping the working parameters of the three matching circuits can be selected by the following method. Since the RF transmitting circuit basically focuses on the RF performance under the maximum gain of the PA, it is selected. For the path capacitance inductance value, select a different set of RGI values (RF gain index) for a fixed frequency band, and the RGI value is used to control the transmit power of the WTR). Under each set of fixed RGI values, control the PA to obtain the maximum gain.
- RGI values RF gain index
- the central processing unit acquires a current working frequency band of the radio frequency transmitting circuit, and the central processing unit sends, to the matching control module, a control instruction that carries the current working frequency band, so that the The matching control module extracts a current working frequency band in the control instruction, and based on the current working frequency band and a mapping relationship between the pre-stored working frequency band and working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit Adjusting operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit, so that the adjusted second matching circuit, the duplexer, and the The operating parameters of the filter and the third matching circuit match the current operating frequency band of the radio frequency transmitting circuit.
- FIG. 2 is a schematic structural diagram of a radio frequency transmitting circuit according to a second embodiment of the present application.
- the radio frequency transmitting circuit in the embodiment of the present application is the radio frequency transmitting circuit shown in FIG. Based on the development of the basis.
- the first switch and the second switch are single-pole dual-position switches.
- the first matching circuit is Type matching circuit.
- the second matching circuit is Type matching circuit or based on The topology circuit of the type matching circuit.
- the third matching circuit is Type matching circuit or based on The topology circuit of the type matching circuit.
- the The type matching circuit includes a programmable inductor and a programmable capacitor respectively coupled across the programmable inductor
- the The topology circuit of the type matching circuit includes at least two programmable inductors and programmable capacitors respectively coupled across the programmable inductor.
- the duplexer is a programmable duplexer.
- the filter is a programmable filter.
- the central processing unit acquires a current working frequency band of the radio frequency transmitting circuit, and the central processing unit sends, to the matching control module, a control instruction that carries the current working frequency band, so that the The matching control module extracts a current working frequency band in the control instruction, and based on the current working frequency band and a mapping relationship between the pre-stored working frequency band and working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit Adjusting operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit, so that the adjusted second matching circuit, the duplexer, and the The operating parameters of the filter and the third matching circuit match the current operating frequency band of the radio frequency transmitting circuit.
- FIG. 3 is a schematic flowchart of a method for controlling a radio frequency transmitting circuit according to a third embodiment of the present application. As shown in FIG. 3, the radio frequency transmitting circuit control method in the embodiment of the present application is based on FIG. To the RF transmitting circuit shown in Figure 2.
- the central processor acquires a current operating frequency band of the radio frequency transmitting circuit.
- the central processor sends a control instruction carrying the current working frequency band to the matching control module.
- the matching control module extracts a current working frequency band in the control instruction.
- the matching control module adjusts the second based on the current working frequency band and the mapping relationship between the pre-stored working frequency band and the working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit.
- the operating parameters of the three matching circuits match the current operating frequency bands of the RF transmitting circuit.
- the central processing unit acquires a current working frequency band of the radio frequency transmitting circuit, and the central processing unit sends, to the matching control module, a control instruction that carries the current working frequency band, so that the The matching control module extracts a current working frequency band in the control instruction, and based on the current working frequency band and a mapping relationship between the pre-stored working frequency band and working parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit Adjusting operating parameters of the second matching circuit, the duplexer, the filter, and the third matching circuit, so that the adjusted second matching circuit, the duplexer, and the The operating parameters of the filter and the third matching circuit match the current operating frequency band of the radio frequency transmitting circuit.
- the embodiment of the present application further provides a mobile terminal, where the mobile terminal includes the radio frequency transmitting circuit shown in FIG. 1 or FIG. 2 of the present application.
- the mobile terminal includes the radio frequency transmitting circuit shown in FIG. 1 or FIG. 2 of the present application.
- FIG. 4 for the convenience of description, only the parts related to the embodiments of the present application are shown, and the technical details are not disclosed. Please refer to the method part of the embodiment of the present application.
- the mobile terminal can be any type of terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), and a vehicle-mounted computer, and the mobile terminal is used as a mobile phone as an example:
- FIG. 4 is a block diagram showing a partial structure of a mobile phone related to a mobile terminal provided by an embodiment of the present application.
- the mobile phone includes: a radio frequency (RF) circuit 410, a memory 420, an input unit 430, a display unit 440, a sensor 450, an audio circuit 460, and a wireless fidelity (Wireless) in the first embodiment of the present application.
- RF radio frequency
- the structure of the handset shown in FIG. 4 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
- the RF circuit 410 can be used for receiving and transmitting information.
- the RF circuit 410 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
- RF circuitry 410 can also communicate with the network and other devices via wireless communication.
- the above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, and Short Messaging Service (SMS).
- GSM Global System of Mobile communication
- GPRS General Packet Radio Service
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- LTE Long Term Evolution
- E-mail E-mail
- SMS Short Messaging Service
- the memory 420 can be used to store software programs and modules, and the processor 480 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 420.
- the memory 420 may mainly include a storage program area and an storage data area, wherein the storage program area may store an operating system and an application required for at least one function (data acquisition function, data comparison function, etc.), and the like; the storage data area may be stored according to The data created by the use of the mobile phone (such as global sound parameters and application level sound parameters, etc.).
- memory 420 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, and other volatile solid state storage devices.
- the input unit 430 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset.
- the input unit 430 may include one or more of a fingerprint recognition module, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick.
- the display unit 440 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone.
- the display unit 440 can include a display screen 441.
- the display screen 441 can be configured in the form of a liquid crystal display (LCD) or an organic light-emitting diode (OLED).
- LCD liquid crystal display
- OLED organic light-emitting diode
- the handset may also include at least one type of sensor 450, such as a light sensor, motion sensor, and other sensors.
- the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light transmission
- the sensor can adjust the brightness of the display 441 according to the brightness of the ambient light, and the proximity sensor can turn off the display 441 and/or the backlight when the mobile phone moves to the ear.
- the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
- Audio circuitry 460, speaker 461, and microphone 462 can provide an audio interface between the user and the handset.
- the audio circuit 460 can transmit the converted electrical data of the received audio data to the speaker 461 for conversion to the sound signal by the speaker 461.
- the microphone 462 converts the collected sound signal into an electrical signal, and the audio circuit 460 After receiving, it is converted into audio data, and then processed by the audio data playing processor 480, sent to the mobile phone 410 via the RF circuit 410, or played to the memory 420 for processing.
- Wi-Fi is a short-range wireless transmission technology.
- the mobile phone can help users to send and receive e-mail, browse web pages and access streaming media through the Wi-Fi module 470, which provides users with wireless broadband Internet access.
- FIG. 4 shows the Wi-Fi module 470, it can be understood that it does not belong to the necessary configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the application.
- the processor 480 is the control center of the handset, and connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 420, and invoking data stored in the memory 420, executing The phone's various functions and processing data, so that the overall monitoring of the phone.
- the processor 480 may include one or more processing units; optionally, the processor 480 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, and an application. Etc.
- the modem processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 480.
- the handset also includes a power source 490 (such as a battery) that supplies power to the various components.
- a power source 490 such as a battery
- the power source can be logically coupled to the processor 480 through a power management system to manage charging, discharging, and power management functions through the power management system.
- the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
- the embodiment of the present application further provides a computer storage medium, wherein the computer storage medium may store a program, and the program includes some or all of the steps of the monitoring method of any one of the service processes described in the foregoing method embodiments.
- the sequence of steps of the method in the embodiment of the present application may be adjusted, merged, or deleted according to actual needs.
- the unit of the terminal in the embodiment of the present application may be integrated, divided, or deleted according to actual needs.
- the disclosed apparatus can be implemented in other ways.
- the device embodiments described above are schematic, for example, the division of the unit is a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into other units.
- the system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may also be an indirect coupling or communication connection through some interface, device or unit, and may be electrical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- the technical solution of the present application may be embodied in the form of a software product in the form of a software product, or a part of the technical solution, which is stored in a storage medium.
- a number of instructions are included to cause a computer device (which may be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like.
- the medium of the program code includes: a U disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk, and the like.
- the program may be stored in a computer readable storage medium, and the storage medium may include: Flash disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random accessor (English: Random Access Memory, referred to as: RAM), disk or optical disk.
- ROM Read-Only Memory
- RAM Random Access Memory
- the radio frequency transmitting circuit, the control method and the mobile terminal provided by the embodiments of the present application avoid the need to add multiple matching circuits to the different working frequency bands of the radio frequency circuit in the front end of the power amplifier, thereby facilitating the reduction of the PCB space of the radio frequency circuit. Reduce the difficulty of PCB layout of RF circuits.
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Abstract
L'invention concerne un circuit de transmission radiofréquence, un procédé de commande et un terminal mobile. Le circuit de transmission radiofréquence comprend : un émetteur-récepteur radiofréquence (WTR), une unité centrale de traitement (CPU), un premier circuit d'adaptation, un amplificateur de puissance (PA), un deuxième circuit d'adaptation, un module de commande d'adaptation, un premier commutateur (SP2T1), un duplexeur, un filtre, un second commutateur (SP2T2), un troisième circuit d'adaptation, un coupleur et une antenne.
Applications Claiming Priority (2)
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CN201610505800.8 | 2016-06-30 | ||
CN201610505800.8A CN105915262A (zh) | 2016-06-30 | 2016-06-30 | 一种射频发射电路及移动终端 |
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PCT/CN2016/092531 WO2018000507A1 (fr) | 2016-06-30 | 2016-07-31 | Circuit de transmission radiofréquence, procédé de commande, et terminal mobile |
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WO (1) | WO2018000507A1 (fr) |
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TWI670946B (zh) * | 2018-07-30 | 2019-09-01 | 瑞昱半導體股份有限公司 | 可縮短傳收器之運作模式過渡期間的傳收器控制電路 |
CN114640358A (zh) * | 2020-12-16 | 2022-06-17 | Oppo广东移动通信有限公司 | 射频PA Mid器件、射频收发***和通信设备 |
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CN106358282A (zh) * | 2016-10-26 | 2017-01-25 | 努比亚技术有限公司 | 一种优化移动终端发射功耗的装置及方法 |
CN108738039B (zh) * | 2017-04-19 | 2021-06-04 | 北京小米移动软件有限公司 | 通讯频段的配置方法及装置、电子设备、可读存储介质 |
CN107786239A (zh) * | 2017-11-15 | 2018-03-09 | 宁波麦度智联科技股份有限公司 | 一种降低移动通讯终端高次谐波辐射杂散的*** |
CN108808245B (zh) * | 2018-06-06 | 2020-12-22 | Oppo(重庆)智能科技有限公司 | 调谐开关处理方法、装置、存储介质及电子设备 |
CN113114280B (zh) * | 2021-04-15 | 2023-02-03 | 维沃移动通信有限公司 | 射频电路、电子设备及射频电路控制方法 |
CN113690619B (zh) * | 2021-09-15 | 2024-01-05 | 宇龙计算机通信科技(深圳)有限公司 | 一种天线及终端 |
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