Classifications

• • 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
  • H04B1/06—Receivers
  • H04B1/16—Circuits
  • H04B1/26—Circuits for superheterodyne receivers

Definitions

• the utility model relates to a receiving device, in particular to an integrated receiving device. Background technique
• the Radio Remote Unit divides the base station into a near-end machine and a remote unit, that is, a wireless baseband control and a radio remote control.
• a remote unit that is, a wireless baseband control and a radio remote control.
• the main purpose of the embodiments of the present invention is to provide an integrated receiving device, which can realize monolithic integration of modules and greatly reduce power consumption.
• the embodiment of the present invention provides an integrated receiving device, where the device includes: a radio frequency signal selecting module for selecting a radio frequency signal;
• the frequency conversion mode is selected, and the signal is input.
• Frequency conversion module for frequency conversion processing
• the intermediate frequency processing module that amplifies and filters the frequency-converted signal and outputs it.
• the radio frequency signal selection module, the gain control module, the local oscillator signal selection module, the frequency conversion module and the intermediate frequency processing module are encapsulated in one chip by a multi-chip component packaging technology or a system-level packaging technology.
• the frequency conversion mode is a mixing mode, or a demodulation mode.
• the adjustment of the signal gain by the gain control module is performed by a voltage controlled attenuator or a digitally controlled attenuator.
• the signal processed by the intermediate frequency processing module is in the form of a differential output or a single-ended output.
• the integrated receiving device includes a radio frequency signal selection module, a gain control module, a local oscillator signal selection module, a frequency conversion module, and an intermediate frequency processing module.
• the device selects a radio frequency signal and sends the signal to the frequency conversion module after being adjusted by the signal gain.
• the local oscillator signal is also sent to the frequency conversion module; the frequency conversion module selects the frequency conversion mode according to the adjusted radio frequency signal and the selected local oscillator signal, and performs frequency conversion processing on the signal; the signal after the frequency conversion processing is further amplified, filtered, and output.
• the radio frequency signal selection module and the local oscillator signal selection module can be used to select a plurality of radio frequency signals and local oscillator signals as needed to adapt to various applications; and, the technical solution of the embodiment of the present invention
• the multiple modules are packaged in one chip to realize the monolithic integration of the modules.
• the embodiments of the present invention can meet the requirements of the performance of the transceivers in different scenarios by selecting different power supply sources, thereby effectively reducing power consumption.
• FIG. 1 is a schematic structural diagram of an integrated receiving device according to an embodiment of the present invention
• FIG. 2 is a schematic diagram of a first application of an embodiment of the present invention
• FIG. 3 is a schematic view of a second application of an embodiment of the present invention.
• FIG. 4 is a schematic view of a third application of an embodiment of the present invention. detailed description
• an integrated receiving device includes: a radio frequency signal selecting module 11 , a gain control module 12 , and a local oscillator signal selecting module. 13.
• the radio frequency signal selection module 11 is configured to select a radio frequency signal, and send the selected radio frequency signal to the gain control module 12;
• the radio frequency signal selection module 11 can select an input radio frequency signal RF IN through a switch control
• the gain control module 12 is configured to adjust a signal gain to the received radio frequency signal, and send the adjusted radio frequency signal to the frequency conversion module 14;
• the adjustment of the signal gain in the gain control module 12 can be completed by a voltage controlled attenuator or a digitally controlled attenuator, and the adjustment range and accuracy of the signal gain can be adjusted to an appropriate range according to requirements;
• the interface form of the gain control module 12 can be Selecting a parallel control or a serial control mode as needed;
• the local oscillator signal selection module 13 is configured to select a local oscillator signal, and send the local oscillator signal to the frequency conversion module 14;
• the local oscillation signal selection module 13 can select the input local oscillation signal LO IN through the switch control;
• the frequency conversion module 14 is configured to select a frequency conversion mode according to the adjusted radio frequency signal and the selected local oscillator signal, and perform frequency conversion processing on the signal;
• the frequency conversion module 14 can perform frequency conversion processing on the signal in a mixing mode or a demodulation mode, wherein the demodulation mode can reduce the sampling clock requirement of an analog to digital converter (ADC);
• ADC analog to digital converter
• the intermediate frequency processing module 15 is configured to amplify and filter the signal after the frequency conversion processing Output
• the intermediate frequency processing module 15 performs filtering processing on the frequency-converted signal, mainly for suppressing interference types such as image interference, half-IF interference, aliasing interference, and transceiving interference in a communication frequency band supported by the mixed-mode base station;
• the signal IF_OUT output by the intermediate frequency processing module 15 is in the form of a differential output or a single-ended output; wherein the frequency range and bandwidth of the intermediate frequency meet the application requirements of zero intermediate frequency or complex intermediate frequency reception as needed.
• the radio frequency signal selection module 11 and the local oscillator signal selection module 13 in the integrated receiving device can be implemented by a switch; the control of the switch can be configured by using a logic high and low level, or a serial peripheral interface (SPI);
• the gain control module 12 in the integrated receiving device can be implemented by a voltage controlled attenuator or a digitally controlled attenuator in the integrated receiving device;
• the frequency conversion module 14 in the integrated receiving device It can be realized by a frequency converter in the integrated receiving device;
• the intermediate frequency processing module 15 in the integrated receiving device can be realized by a power amplifier and a filter in the integrated receiving device in practical applications.
• the integrated receiving device provided by the embodiment of the present invention can package multiple modules in one chip by using a multi-chip module (MCM) technology or a system in a package (SIP) technology, namely:
• MCM multi-chip module
• SIP system in a package
• the RF signal selection module, the gain control module, the local oscillator signal selection module, the frequency conversion module and the intermediate frequency processing module are packaged in one chip by MCM technology or SIP technology, thereby realizing monolithic integration of the module;
• the integrated receiving device provided by the example can meet the power consumption reduction requirements of the system by selecting different power supply sources, for example: 5V power supply can be selected for high performance operation, and 3.3V power supply can be selected when performance requirements are reduced.
• SPI Serial Peripheral Interface
• the integrated receiving device 22 of the embodiment of the present invention can be used as a digital pre-distortion (Digital Pre-Distortion, DPD)
• DPD Digital Pre-Distortion
• the hardware support circuit for processing completes the distortion acquisition processing of the power amplifier output signal.
• the signal is sent from the transceiver board 24 to the power amplifier (PA) 21, and the signal is amplified, and then enters the integrated receiving device 22 of the present invention through the coupling circuit to complete the gain adjustment and frequency conversion of the signal.
• the intermediate frequency processing is sent to the DPD processing module 23, the distortion acquisition processing of the signal is completed, and the processed signal is sent to the transceiver board 24 to output the signal;
• the linearity requirement of the intermediate frequency processing module of the integrated receiving device 22 of the embodiment of the present invention needs to meet the linear requirement of the DPD.
• FIG. 3 is a schematic diagram of a second application of the embodiment of the present invention.
• the integrated receiving device 32 of the new practical embodiment can be used as a calibration path to complete the spurious calibration of the transmitting link.
• the signal is output from the modulator 31, enters the integrated receiving device 32 via the coupling circuit, and is subjected to gain adjustment and frequency conversion processing, and then fed back to a digital to analog converter (DAC) 33 to complete the signal miscellaneous Scatter calibration suppression.
• DAC digital to analog converter
• the integrated receiving device 44 of the new practical embodiment can be used as a standing wave detection hardware support circuit to complete standing wave detection of the output of the transmitted signal.
• the signal is sent through the transceiver board 41, the signal is amplified by the PA 42, and then output through the duplexer 43, and the forward signal and the reverse signal are respectively sent to the two of the single-pole double-throw switch through the coupling circuit.
• the forward signal or the reverse signal is sent to the integrated receiving device 44 through the single-pole double-throw switch, and the gain adjustment and the frequency conversion processing of the integrated receiving device 44 are fed back to the standing wave detecting chip 45 to complete the standing wave detection of the signal.
• the embodiment of the present invention can select a plurality of radio frequency signals and local oscillator signals according to requirements by using a radio frequency signal selection module and a local oscillator signal selection module, and is suitable for various applications;
• a plurality of modules are packaged in one chip, and monolithic integration of the modules is realized.
• the embodiments of the present invention can meet the requirements of the performance of the transceivers in different scenarios by selecting different power supply sources, thereby effectively reducing the number of modules. Power consumption.

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Superheterodyne Receivers (AREA)
• Transmitters (AREA)
• Circuits Of Receivers In General (AREA)
• Transceivers (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=50628276

Family Applications (1)

Country Status (2)

Cited By (3)

Citations (2)

Family Cites Families (2)

• 2013
  • 2013-09-18 WO PCT/CN2013/083834 patent/WO2014067363A1/zh active Application Filing
  • 2013-09-18 JP JP2015540030A patent/JP2015533464A/ja active Pending

Patent Citations (2)

Also Published As

Similar Documents

Legal Events