WO2016206337A1 - 一种本振信号配置电路、本振信号配置方法及存储介质 - Google Patents
一种本振信号配置电路、本振信号配置方法及存储介质 Download PDFInfo
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- WO2016206337A1 WO2016206337A1 PCT/CN2015/098896 CN2015098896W WO2016206337A1 WO 2016206337 A1 WO2016206337 A1 WO 2016206337A1 CN 2015098896 W CN2015098896 W CN 2015098896W WO 2016206337 A1 WO2016206337 A1 WO 2016206337A1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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- the invention relates to the technical field of circuit design, in particular to a local oscillator signal configuration circuit, a local oscillator signal configuration method and a storage medium applied to a carrier aggregation and a multi-input multi-output radio transceiver.
- multi-mode multi-band radio transceivers With the popularity of mobile terminals, the market has a great demand for multi-mode multi-band radio transceivers.
- multi-mode multi-band radio transceivers usually require multiple local frequencies of different frequencies or multiple identical frequencies.
- current carrier aggregation and MIMO transceivers are the most widely used RF transceivers; when carrier aggregation and MIMO transmitters are used as carrier aggregation RF transceivers, voltage controlled oscillators (VCOs) are required.
- VCOs voltage controlled oscillators
- Voltage-Controlled Oscillator provides at least two local oscillator signals of different frequencies; when carrier aggregation and multiple input multiple output RF transceivers are used as multiple input multiple output RF transceivers, the VCO is required to transmit a single frequency local oscillator signal to at least two RF transceiver local oscillator signal input.
- the local oscillator signal is usually provided by a VCO and a Phase Locked Loop (PLL).
- PLL Phase Locked Loop
- the VCO and PLL usually occupy a large area in the whole chip and consume more current. This requires the chip to have a large area to ensure the generation of the local oscillator signal, resulting in the cost and work of the chip. The consumption is too high.
- the embodiments of the present invention are expected to provide a local oscillator signal configuration circuit, a local oscillator signal configuration method, and a storage medium, which can effectively reduce the transceiver chip area, reduce chip power consumption, and chip cost.
- Embodiments of the present invention provide a local oscillator signal configuration circuit, where the circuit includes: a local oscillator signal No. generating circuit, local oscillator signal control circuit;
- the local oscillator signal generating circuit is configured to generate local oscillator signals of different frequencies
- the local oscillator signal control circuit is configured to configure a local oscillator signal of the same frequency or a different frequency according to an operating mode of the radio frequency transceiver.
- the local oscillator signal generating circuit includes at least two local oscillator signal generators, and each local oscillator signal generator generates a local oscillator signal of a frequency.
- the local oscillator signal control circuit is configured to:
- the local oscillator signal control circuit configures a local oscillator signal of different frequencies for the radio frequency transceiver
- the local oscillator signal control circuit configures the local oscillator signal of the same frequency for the radio frequency transceiver when the radio frequency transceiver is in the multiple input multiple output operation mode.
- the local oscillator signal control circuit includes a driver and a control switch, wherein
- the driver is configured to enhance a local oscillator signal generated by the local oscillator signal generating circuit, and cooperate with the control switch to output a local oscillator signal of the same frequency or a different frequency;
- the control switch is configured to control the output of the local oscillator signal of the same frequency or different frequency in cooperation with the driver by controlling the opening and closing of each line in the local oscillator signal control circuit.
- An embodiment of the present invention further provides a local oscillator signal configuration method, where the method includes:
- the local oscillator signals of the same frequency or different frequencies are configured.
- the generating the local oscillator signals of different frequencies comprises: generating local oscillator signals by at least two local oscillator signal generators, wherein each local oscillator signal generator generates a local oscillator signal of a frequency.
- the local oscillator signals configured with the same frequency or different frequencies include:
- the local oscillator signal control circuit when the radio frequency transceiver is in a carrier aggregation mode Configuring a local oscillator signal of different frequencies for the radio transceiver;
- the local oscillator signal control circuit configures the local oscillator signal of the same frequency for the radio frequency transceiver when the radio frequency transceiver is in the multiple input multiple output operation mode.
- the method further includes:
- the local oscillator signal configured with the same frequency or different frequency for the radio frequency transceiver includes: opening and closing of the driver through the driver, and controlling the opening and closing of each line in the local oscillator signal control circuit by the control switch, and cooperatively controlling the output of the same frequency or Local oscillator signals at different frequencies.
- An embodiment of the present invention further provides a radio frequency transceiver, where the radio frequency transceiver includes the local oscillator signal configuration circuit.
- the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program for performing a local oscillator signal configuration method according to an embodiment of the present invention.
- the local oscillator signal configuration circuit, the local oscillator signal configuration method, and the storage medium provided by the embodiments of the present invention generate local oscillator signals of different frequencies through the local oscillator signal generating circuit; and configure the same frequency or different frequencies through the local oscillator signal control circuit. Vibration signal.
- multiplexing of the VCO and the PLL can be achieved, using as few VCOs and PLLs as possible to provide as many local oscillator signals as possible, and distributing local oscillator signals of the same frequency or different frequencies to different RF receivers simultaneously.
- RF transceivers with carrier aggregation and multiple input multiple output provide different local oscillator signals. Reduce chip area, reduce chip power consumption and chip cost while supporting diversification of transceiver functions.
- FIG. 1 is a schematic structural diagram of a local oscillator signal configuration circuit according to an embodiment of the present invention
- FIG. 2 is a schematic diagram showing the internal structure of a local oscillator signal configuration circuit according to an embodiment of the present invention
- FIG. 3 is a diagram showing the driver and the control when the radio frequency transceiver is in the carrier aggregation working mode according to the embodiment of the present invention; Schematic diagram of the state of the switch;
- FIG. 4 is a schematic diagram showing states of a driver and a control switch when the radio frequency transceiver is in a carrier aggregation working mode according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of states of a driver and a control switch when the radio frequency transceiver is in a multiple input multiple output operation mode according to an embodiment of the present invention
- FIG. 6 is a schematic diagram of states of a driver and a control switch when the radio frequency transceiver is in a multiple input multiple output operation mode according to an embodiment of the present invention
- FIG. 7 is a schematic flowchart of a method for configuring a local oscillator signal according to an embodiment of the present invention.
- the local oscillator signal of different frequencies is generated by the local oscillator signal generating circuit; and the local oscillator signal of the same frequency or different frequency is configured by the local oscillator signal control circuit.
- the local oscillator signal generating circuit of the embodiment of the present invention includes at least two local oscillator signal generators capable of providing local oscillator signals of different frequencies.
- the local oscillator signal generating circuit outputs Two kinds of local oscillator signals with different frequencies; when the RF transceiver works in multiple input and multiple output mode, since the RF transceiver only needs a single frequency local oscillator signal, it is necessary to turn off the output circuit of one of the local oscillator signals. Drive multiple RF transceivers with a single local oscillator signal.
- the same set of local oscillator signal generating circuits can be utilized, and the local oscillator signal control circuit can realize the function of providing local oscillator signals of different frequencies or the same frequency for the radio frequency transceiver with carrier aggregation and multiple input and multiple output functions.
- the size of the local oscillator signal generating circuit in the radio frequency transceiver with carrier aggregation and multiple input multiple output functions is effectively reduced, the area of the chip is reduced, and the power consumption of the chip is reduced.
- FIG. 1 is a schematic structural diagram of a local oscillator signal configuration circuit according to an embodiment of the present invention, as shown in FIG.
- the local oscillator signal configuration circuit includes a local oscillator signal generating circuit 11 and a local oscillator signal control circuit 12;
- the local oscillator signal generating circuit 11 is configured to generate local oscillator signals of different frequencies
- the local oscillator signal control circuit 12 is configured to configure local oscillator signals of the same frequency or different frequencies according to an operating mode of the radio frequency transceiver.
- the local oscillator signal generating circuit 11 includes at least two local oscillator signal generators 111, and each local oscillator signal generator 111 generates A local oscillator signal of frequency.
- the local oscillator signal generating circuit 11 includes two local oscillator signal generators 111, as shown in FIG.
- the local oscillator signal generator 111 in FIG. 2, includes two local oscillator signal generators 111: VCO1, VCO2; and two local oscillator signal generators 111 respectively generate local oscillator signals of different frequencies.
- the models of VCO1 and VCO2 may be the same or different; the frequency ranges of the VCOs of the same model are the same, and the frequency ranges of VCOs of different models are different.
- each model VCO has a controllable frequency range
- two VCOs of the same model or two different models of VCOs can provide local oscillator signals at different frequencies; for example, when both VCO1 and VCO2 are models In the VCO of HE487, the frequency range of VCO1 and VCO2 is 3.0 ⁇ 3.7GHz.
- the frequency of the local oscillator signal output by VCO1 and VCO2 can be set according to actual needs. For example, the frequency of the local oscillator signal output by VCO1 is set to 3.0GHz.
- the local oscillator signal frequency of the VCO2 output is set to 3.7 GHz;
- the local oscillator signal control circuit 12 when the radio frequency transceiver is in a carrier aggregation mode, the local oscillator signal control circuit 12 configures the radio frequency transceiver 13 with local oscillator signals of different frequencies; when the radio frequency transceiver When in the multiple input multiple output mode of operation, the local oscillator signal control circuit 12 outputs a local oscillator signal of the same frequency to the radio frequency transceiver 13.
- any VCO output local oscillator signal can be selected according to the chip structure; for example, when the required local oscillator signal frequency is 3.5.
- the output frequency of the VCO1 can be set to 3.5 GHz, and the VCO 2 is turned off, so that the local oscillation signal control circuit 12 only turns on the VCO 1
- the path where the VCO2 is located is not connected, so that the local oscillator signal of the same frequency can be obtained.
- VCO1 and VCO2 are different types of VCOs
- the VCO that outputs the local oscillator signal can be selected according to the actual required frequency and the frequency range of VCO1 and VCO2.
- two VCOs of the same type can satisfy the local oscillator signal configuration method according to the embodiment of the present invention. Therefore, in practical applications, the VCO1/VCO2 output local oscillator signal can be selected according to the working mode of the radio frequency transceiver. ;
- the local oscillator signal control circuit 12 includes at least one driver 121 and at least one control switch 122 as shown in FIG. 2, wherein the driver is configured to enhance the local oscillator generated by the local oscillator signal generating circuit. Signaling, and cooperating with the control switch 122 to control a local oscillator signal of the same frequency or different frequency; the control switch 122 is configured to control the opening and closing of each line in the local oscillator signal control circuit, and the driver 121 Coordinated control configures local oscillator signals of the same frequency or different frequencies.
- the dashed box is the internal structure of the local oscillator signal control circuit 12 according to the embodiment of the present invention, as shown in FIG. 2 .
- the drive 121 To control the switch 122, in the embodiment of FIG.
- the local oscillator signal control circuit 12 includes three drivers 121: buffer0, buffer1, buffer2; and ten control switches 122: S1, S2, S0a, S0a, S1b, S1b, S2c, S2c, S3d, S3d; wherein, S0a, S0a, S1b, S1b, S2c, S2c, S3d, S3d are respectively connected to a radio frequency handset or transmitter 13; in Figure 2, through the radio transceiver Frequency and mixer icon Refers to the RF receiver/RF transmitter 13.
- the driver 121 when the driver 121 is in the on state, the driver 121 can enhance the local oscillator signal input to itself, and then output the signal. Therefore, in practical applications, when the radio frequency transceiver 13 is away from the local oscillator signal When the generator 111 is far away, the driver 121 is required to enhance the local oscillator signal in the line, and then sent to the radio frequency transceiver 13 to ensure that the sub-radio frequency transceiver 13 can receive the local oscillator signal with the required strength;
- the driver 121 When the driver 121 is in the off state, the local oscillator signal cannot pass through the driver 121, and the driver 121 cannot implement the function of the local oscillator signal enhancement.
- the frequency divider and the mixer icon in the radio transceiver are still used.
- the divider and mixer are identical to the RF transceiver.
- the local oscillator signal control circuit 12 needs to configure local oscillator signals of different frequencies; in this scenario, each driver and control switch of the local oscillator signal control circuit 12 The status is shown in Figure 3:
- the control switch S1 and the control switch S2 are closed, the driver Buffer0 is in the off state, the Buffer1 and the Buffer2 can be selected to be in the on state; the local oscillator signals LO1 and LO2 outputted by the VCO1 and the VCO2 are output.
- the local oscillator signal LO1 provided by the VCO1 and the local oscillator signal LO2 provided by the VCO2 are independent of each other; thus, two independent local oscillator signals are respectively input to the control
- S0a, S0b, S1a, S1b, S2a, S2b, S3a, S3b are all closed. Minute And mixer Mixer0a, Mixer0b, Mixer1a, Mixer1b received the local oscillator signal LO1, Mixer2a, Mixer2b, Mixer3a, Mixer3b received the local oscillator signal LO2, to meet carrier aggregation RF transceiver the requirements of the local signal.
- FIG. 4 is a schematic diagram of another embodiment of the present invention, when the radio frequency transceiver is in a carrier aggregation working mode, The state diagram of each driver and control switch in the local oscillator signal control circuit 12, as shown in FIG. 4, the control switch S1 and the control switch S2 are closed, the drivers Buffer0, Buffer1, and Buffer2 are in a closed state, and the control switches S0a, S0b are closed.
- S3a, S3b are in the off state, S1a, S1b, S2a, S2b are in the closed state; since Buffer0 is in the off state, the local oscillator signal LO1 provided by the VCO1 and the local oscillator signal LO2 provided by the VCO2 are independent of each other; Because Buffer1 and Buffer2 are in the off state, the local oscillator signal cannot pass through Buffer1 and Buffer2, and two independent local oscillator signals are respectively input to the control switches S1a, S1b, S2a, and S2b. Among them, the control switches S1a and S1b are input.
- the vibration signal LO1, the control switches S2a, S2b, the input is the local oscillator signal LO2, the control switch is turned on S0a, S0b, S3a, S3b can not receive the local oscillator signal; then according to the actual demand, selectively close or open S1a, S1b , S2a, S2b, as shown in Figure 5, S1a, S1b, S2a, S2b are all in the closed state, the frequency divider and the mixer Mixer1a, Mixer1b receive the local oscillator signal LO1, Mixer2a, M
- the ixer2b receives the local oscillator signal LO2, and the Mixer0a, Mixer0b, Mixer3a, and Mixer3b have no input signals; thus satisfying the requirements of the carrier aggregation RF transceiver for the local oscillator signal.
- the local oscillator signal control circuit 12 When the radio frequency transceiver is in the multiple input multiple output operation mode, the local oscillator signal control circuit 12 needs to output a local oscillator signal of the same frequency; in this scenario, each driver and control of the local oscillator signal control circuit 12 The state of the switch is shown in Figure 5:
- the configuration that the control switch S1 is closed, the S2 is open, and the Buffer0 is in the open state can be selected, and the configuration that the control switch S1 is disconnected, the S2 is closed, and the Buffer0 is in the open state can also be selected. the way.
- the control switch S1 in the local oscillator signal control circuit is closed, S2 is turned off, and Buffer0 is in an on state, Buffer1 and Buffer2 are in a closed state, and the local oscillator signal LO1 outputted by the VCO1 is output to the local oscillator.
- the local oscillator signal cannot pass through Buffer1 and Buffer2, and the local oscillator signal LO1 output from VCO1 is input to the control switches S1a, S1b, S2a, and S2b, respectively, where the input is to the control switch.
- the local oscillator signals of S2a and S2b are Buffer0 enhanced local oscillator signal; then then selectively close or open S1a, S1b, S2a, S2b according to actual demand, as shown in Figure 5, S1a, S1b, S2a, S2b are in the closed state, the frequency divider and The mixers Mixer1a, Mixer1b, Mixer2a, and Mixer2b receive the local oscillator signal LO1, and Mixer0a, Mixer0b, Mixer3a, and Mixer3b have no input signals; thus, the same frequency local oscillator signal is provided for the multiple RF receivers or transmitters.
- the requirements of the multi-input multi-output RF transceiver for the local oscillator signal are Buffer0 enhanced local oscillator signal; then then selectively close or open S1a, S1b, S2a, S2b according to actual demand, as shown in Figure 5, S1a, S1b, S2a, S2b are in the closed
- FIG. 6 is a schematic diagram of states of each driver and control switch in the local oscillator signal control circuit 12 when the radio frequency transceiver is in a multiple input multiple output operation mode according to another embodiment of the present invention, as shown in FIG.
- the control switch S1 in the local oscillator signal control circuit is closed, S2 is off, Buffer0, Buffer1, and Buffer2 are in the on state, the local oscillator signal LO1 output by the VCO1 is output to the main path of the local oscillator signal, and is respectively input to the control switch.
- S0a, S0b, S1a, S1b, S2a, S2b, S3a, S3b are all closed, frequency divider and mixer Mixer0a, Mixer0b, Mixer1a, Mixer1b, Mixer2a , Mixer2b, Mixer3a Mixer3b receives is the local oscillator signal LO1, to achieve local oscillation signal is multiplexed with the radio frequency receiver or transmitter provided to meet the MIMO RF transceiver the requirements of the local signal.
- circuit structure shown in FIG. 2 to FIG. 6 is taken as an example, and the scope is not limited. In practical applications, the circuit structure may be adjusted, for example, to increase or decrease each device in the circuit. The number, the position of each device in the adjustment circuit, and the connection relationship between the devices to adapt to different local oscillator signal frequency requirements are all within the scope of the present invention.
- FIG. 7 is an embodiment of the present invention.
- a schematic diagram of a local oscillator circuit configuration method is shown in FIG. 7.
- the local oscillator circuit configuration method includes the following steps:
- Step 701 Generate local oscillator signals of different frequencies.
- the generating the local oscillator signals of different frequencies comprises: generating local oscillator signals by using at least two local oscillator signal generators, wherein each local oscillator signal generator generates a local oscillator signal of a frequency.
- Step 702 Configure local oscillator signals of the same frequency or different frequencies according to the working mode of the radio frequency transceiver.
- configuring the local oscillator signal of the same frequency or different frequency includes: when the radio frequency transceiver is in a carrier aggregation working mode, the local oscillator signal control circuit is configured differently for the radio frequency transceiver The local oscillator signal of the frequency; when the radio frequency transceiver is in the multiple input multiple output operation mode, the local oscillator signal control circuit configures the local oscillator signal of the same frequency for the radio frequency transceiver.
- the method in the embodiment of the present invention further includes: enhancing a local oscillator signal generated by the local oscillator signal generating circuit;
- the local oscillator signal configured with the same frequency or different frequency for the radio frequency transceiver includes: opening and closing of the driver through the driver, and controlling the opening and closing of each line in the local oscillator signal control circuit by the control switch, and cooperatively controlling the output of the same frequency or Local oscillator signals at different frequencies.
- the driver when the driver is in an on state, the driver can enhance the local oscillator signal input to itself, and then output, so when the radio transceiver is far away from the local oscillator signal generator, the driver is required.
- the local oscillator signal in the line is enhanced and then sent to the frequency divider and the mixer to ensure that the frequency divider and the mixer can receive the local oscillator signal with the required strength; when the drive is in the off state, The local oscillator signal cannot pass through the driver, and the driver cannot implement the local oscillator signal enhancement function.
- An embodiment of the present invention further provides a radio frequency transceiver, where the radio frequency transceiver includes FIG. 1 to Figure 6 shows the local oscillator signal configuration circuit.
- an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program for performing a local oscillator signal configuration method according to an embodiment of the present invention.
- the local oscillator signal configuration circuit, the local oscillator signal configuration method, and the storage medium described in the embodiments of the present invention are exemplified only by the above embodiments, but are not limited thereto, and those skilled in the art should understand that they can still implement the foregoing implementations.
- the technical solutions described in the examples are modified, or some or all of the technical features are equivalently substituted; and the modifications or substitutions do not deviate from the scope of the technical solutions of the embodiments of the present invention.
- the local oscillator signal is generated by the local oscillator signal generating circuit, and the local oscillator signal of the same frequency or different frequency is configured by the local oscillator signal control circuit.
- multiplexing of the VCO and the PLL can be achieved, using as few VCOs and PLLs as possible to provide as many local oscillator signals as possible, and distributing local oscillator signals of the same frequency or different frequencies to different RF receivers simultaneously.
- RF transceivers with carrier aggregation and multiple input multiple output provide different local oscillator signals. Reduce chip area, reduce chip power consumption and chip cost while supporting diversification of transceiver functions.
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Abstract
一种本振信号配置电路，所述电路包括：本振信号产生电路（11），本振信号控制电路（12）；其中，所述本振信号产生电路（11），配置为产生不同频率的本振信号；所述本振信号控制电路（12），配置为根据射频收发机（13）的工作模式，为射频收发机（13）配置相同频率或不同频率的本振信号。此外，还提供了一种本振信号配置方法、一种射频收发机及存储介质。有效降低了具有载波聚合与多输入多输出功能的射频收发机中本振信号产生电路的规模，减小了芯片面积，降低了芯片的功耗。
Description
本发明涉及电路设计技术领域，尤其涉及一种应用于载波聚合和多输入多输出射频收发机的本振信号配置电路、本振信号配置方法及存储介质。
随着移动终端的普及，市场对于多模多带射频收发机的需求很大，多模多带射频收发机在工作过程中，通常会需要多个不同频率或多个相同频率的本振信号；例如，目前的载波聚合和多输入多输出射频收发机是使用最为广泛的射频收发机；在载波聚合和多输入多输出射频收发机作为载波聚合射频收发机时，要求压控振荡器(VCO，Voltage-Controlled Oscillator)提供至少两个不同频率的本振信号；在载波聚合和多输入多输出射频收发机作为多输入多输出射频收发机时，要求VCO能够将单一频率本振信号传递到至少两个射频收发机本振信号输入端。而本振信号通常是由VCO和锁相环(PLL，Phase Locked Loop)提供。在收发机中，VCO和PLL通常会在整个芯片当中占据较大的面积并消耗较多的电流，这就要求芯片必须有很大的面积来保证本振信号的产生，造成芯片的成本和功耗都过高。
发明内容
有鉴于此，本发明实施例期望提供一种本振信号配置电路、本振信号配置方法及存储介质，可以有效的减小收发机芯片面积、降低芯片功耗和芯片成本。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种本振信号配置电路，所述电路包括：本振信
号产生电路，本振信号控制电路；其中，
所述本振信号产生电路，配置为产生不同频率的本振信号；
所述本振信号控制电路，配置为根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
上述方案中，所述本振信号产生电路包括至少两个本振信号产生器，每个本振信号产生器产生一种频率的本振信号。
上述方案中，所述本振信号控制电路配置为：
当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路为射频收发机配置不同频率的本振信号；
当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路为射频收发机配置相同频率的本振信号。
上述方案中，所述本振信号控制电路包括驱动器和控制开关，其中，
所述驱动器，配置为增强本振信号产生电路产生的本振信号，并与控制开关协同控制输出相同频率或不同频率的本振信号；
所述控制开关，配置为通过控制所述本振信号控制电路中各线路的断开和接通，与驱动器协同控制输出相同频率或不同频率的本振信号。
本发明实施例还提供了一种本振信号配置方法，所述方法包括：
产生不同频率的本振信号；
根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
上述方案中，所述产生不同频率的本振信号包括：通过至少两个本振信号产生器产生本振信号，其中，每个本振信号产生器产生一种频率的本振信号。
上述方案中，所述根据射频收发机的工作模式，配置相同频率或不同频率的本振信号包括：
当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路
为射频收发机配置不同频率的本振信号；
当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路为射频收发机配置相同频率的本振信号。
上述方案中，所述方法还包括：
增强本振信号产生电路产生的本振信号；
所述为射频收发机配置相同频率或不同频率的本振信号包括：通过驱动器的开启和关闭、以及通过控制开关控制本振信号控制电路中各线路的断开和闭合，协同控制输出相同频率或不同频率的本振信号。
本发明实施例还提供了一种射频收发机，所述射频收发机包括以上所述本振信号配置电路。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质存储有计算机程序，该计算机程序用于执行本发明实施例的本振信号配置方法。
本发明实施例所提供的本振信号配置电路、本振信号配置方法及存储介质，通过本振信号产生电路产生不同频率的本振信号；通过本振信号控制电路配置相同频率或不同频率的本振信号。如此，可以实现对VCO和PLL的复用，使用尽可能少的VCO和PLL提供尽可能多的本振信号，并将相同频率或者不同频率的本振信号分发给不同的射频接收机，为同时具有载波聚合和多输入多输出功能的射频收发机提供不同的本振信号。在支持实现收发机功能多样化的同时，减小芯片面积、降低芯片功耗和芯片成本。
图1为本发明实施例本振信号配置电路结构示意图；
图2为本发明实施例本振信号配置电路内部结构示意图；
图3为本发明实施例射频收发机处于载波聚合工作模式时驱动器和控
制开关的状态示意图；
图4为本发明实施例射频收发机处于载波聚合工作模式时驱动器和控制开关的状态示意图；
图5为本发明实施例射频收发机处于多输入多输出工作模式时驱动器和控制开关的状态示意图；
图6为本发明实施例射频收发机处于多输入多输出工作模式时驱动器和控制开关的状态示意图；
图7为本发明实施例本振信号配置方法流程示意图。
在本发明实施例中，通过本振信号产生电路产生不同频率的本振信号；通过本振信号控制电路配置相同频率或不同频率的本振信号。
本发明实施例所述本振信号产生电路中，包括至少两个能够提供不同频率本振信号的本振信号产生器，当射频收发机工作在载波聚合模式时，所述本振信号产生电路输出两种不同频率的本振信号；而射频收发机工作在多输入多输出模式下时，由于射频收发机只需要一个单一频率的本振信号，因此需要将其中一个本振信号的输出电路关闭，通过单一本振信号驱动多个射频收发机。如此，能够利用同一套本振信号产生电路，通过本振信号控制电路，实现为具有载波聚合与多输入多输出功能的射频收发机提供不同频率或相同频率本振信号的功能。有效降低了具有载波聚合与多输入多输出功能的射频收发机中本振信号产生电路的规模，减小了芯片的面积，降低了芯片的功耗。
下面结合附图及实施例，对本发明实施例所述本振信号配置电路进行详细说明，图1为本发明实施例本振信号配置电路结构示意图，如图1所示，本发明实施例中所述本振信号配置电路包括本振信号产生电路11，本振信号控制电路12；其中，
所述本振信号产生电路11，配置为产生不同频率的本振信号；
所述本振信号控制电路12，配置为根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
图2为本发明实施例本振信号配置电路内部结构示意图，如图2所示，所述本振信号产生电路11包括至少两个本振信号产生器111，每个本振信号产生器111产生一种频率的本振信号。
本发明实施例中，以所述本振信号产生电路11包括两个本振信号产生器111，如图2所示，
为本振信号产生器111；图2中，包括两个本振信号产生器111：VCO1、VCO2；两个本振信号产生器111分别产生不同频率的本振信号。这里，VCO1、VCO2的型号可以相同，也可以不同；相同型号的VCO的频率范围相同，不同型号的VCO的频率范围不同。由于每种型号的VCO都有一个可控的频率区间，因此，两个相同型号的VCO或两个不同型号的VCO均可以提供不同频率的本振信号；例如，当VCO1、VCO2均为型号为HE487的VCO时，VCO1和VCO2的频率区间均为3.0～3.7GHz，可根据实际需求设置VCO1和VCO2输出的本振信号的频率，如，将VCO1输出的本振信号频率设置为3.0GHz，将VCO2输出的本振信号频率设置为3.7GHz；
对于所述本振信号控制电路12，当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路12为射频收发机13配置不同频率的本振信号；当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路12为射频收发机13输出相同频率的本振信号。
这里，由于只需要一个VCO输出本振信号，因此，当VCO1和VCO2为相同型号的VCO时，可以根据芯片结构，选择任意一个VCO输出本振信号；例如，当所需本振信号频率为3.5GHz时，可以设置VCO1的输出频率为3.5GHz，VCO2关闭，这样，所述本振信号控制电路12仅接通VCO1
所在通路，而不接通VCO2所在通路，如此，可获得相同频率的本振信号。当VCO1和VCO2为不同型号的VCO时，可以根据实际所需频率与VCO1和VCO2的频率范围，选择输出本振信号的VCO。通常情况下，两个相同型号的VCO即可满足本发明实施例所述本振信号配置方法，因此，在实际应用中，可以根据射频收发机的工作模式，选择VCO1/或者VCO2输出本振信号；
本发明实施例中，所述本振信号控制电路12如图2所示，包括至少一个驱动器121和至少一个控制开关122，其中，所述驱动器，配置为增强本振信号产生电路产生的本振信号，并与控制开关122协同控制配置相同频率或不同频率的本振信号；所述控制开关122，配置为通过控制所述本振信号控制电路中各线路的断开和接通，与驱动器121协同控制配置相同频率或不同频率的本振信号。
以图2为例，虚线框为本发明实施例所述本振信号控制电路12的内部结构，如图2所示，
为驱动器121，
为控制开关122，图2所述实施例中，所述本振信号控制电路12包括3个驱动器121：buffer0、buffer1、buffer2；以及10个控制开关122：S1、S2、S0a、S0a、S1b、S1b、S2c、S2c、S3d、S3d；其中，S0a、S0a、S1b、S1b、S2c、S2c、S3d、S3d分别与一个射频接手机或者发射机13相连；图2中，通过射频收发机中的分频器与混频器图标
泛指射频接收机/射频发射机13。
在一实施例中，当驱动器121处于开启状态时，所述驱动器121能够将输入到自身的本振信号进行增强后再进行输出，因此，在实际应用中，当射频收发机13距离本振信号产生器111较远时，需要驱动器121将线路中的本振信号进行增强后，再发送到射频收发机13，从而保证分射频收发机13能够接收到强度符合要求的本振信号；
当驱动器121处于关闭状态时，所述本振信号无法通过驱动器121，所述驱动器121也无法实现本振信号增强的功能。
下面结合实际应用场景，对本发明实施例所述本振信号配置电路的工作过程进行说明，图3至图6所述实际场景中，仍然使用射频收发机中的分频器与混频器图标
泛指射频接收机/射频发射机，在以下实施例中，分频器和混频器与射频收发机指代相同。
当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路12需要配置不同频率的本振信号；在此场景下，所述本振信号控制电路12中各驱动器和控制开关的状态如图3所示：
当需要输出不同频率的本振信号时，所述控制开关S1和控制开关S2闭合，驱动器Buffer0处于关闭状态，Buffer1、Buffer2可以选择处于开启状态；由VCO1和VCO2输出的本振信号LO1和LO2输出到本振信号主路径上；由于Buffer0处于是关闭状态，因此，由VCO1提供的本振信号LO1和由VCO2提供的本振信号LO2互相独立；如此，两个独立的本振信号分别输入到控制开关S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b；其中，控制开关S0a、S0b、S1a、S1b输入的是本振信号LO1，控制开关S2a、S2b、S3a、S3b输入的是本振信号LO2；并且，输入到控制开关S0a、S0b的本振信号为通Buffer1增强后的本振信号，输入到控制开关S3a、S3b的本振信号为通Buffer2增强后的本振信号；然后根据实际需求，选择性地闭合或断开S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b，如图3中，S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b均处于闭合状态，分频器和混频器Mixer0a、Mixer0b、Mixer1a、Mixer1b接收到的是本振信号LO1，Mixer2a、Mixer2b、Mixer3a、Mixer3b接收到的是本振信号LO2，从而满足载波聚合射频收发机对本振信号的要求。
图4为本发明又一实施例当所述射频收发机处于载波聚合工作模式时，
所述本振信号控制电路12中各驱动器和控制开关的状态示意图，如图4所示，所述控制开关S1和控制开关S2闭合，驱动器Buffer0、Buffer1、Buffer2处于关闭状态，控制开关S0a、S0b、S3a、S3b处于断开状态，S1a、S1b、S2a、S2b处于闭合状态；由于Buffer0处于是关闭状态，因此，由VCO1提供的本振信号LO1和由VCO2提供的本振信号LO2互相独立；又因为Buffer1、Buffer2处于关闭状态，因此，本振信号无法通过Buffer1、Buffer2，两个独立的本振信号分别输入到控制开关S1a、S1b、S2a、S2b；其中，控制开关S1a、S1b输入的是本振信号LO1，控制开关S2a、S2b、输入的是本振信号LO2，控制开关开S0a、S0b、S3a、S3b无法接收到本振信号；然后根据实际需求，选择性地闭合或断开S1a、S1b、S2a、S2b，如图5中，S1a、S1b、S2a、S2b均处于闭合状态，分频器和混频器Mixer1a、Mixer1b接收到的是本振信号LO1，Mixer2a、Mixer2b接收到的是本振信号LO2，Mixer0a、Mixer0b、Mixer3a、Mixer3b无输入信号；从而满足载波聚合射频收发机对本振信号的要求。
当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路12需要输出相同频率的本振信号；在此场景下，所述本振信号控制电路12中各驱动器和控制开关的状态如图5所示：
当需要输出相同频率的本振信号时，可以选择控制开关S1闭合、S2断开、Buffer0处于开启状态这一配置方式，也可以选择控制开关S1断开、S2闭合和Buffer0处于开启状态这一配置方式。如图5所示，当所述本振信号控制电路中的控制开关S1闭合、S2断开、Buffer0处于开启状态时，Buffer1、Buffer2处于关闭状态，由VCO1输出的本振信号LO1输出到本振信号主路径上，由于Buffer1、Buffer2处于关闭状态，因此，本振信号无法通过Buffer1和Buffer2，VCO1输出的本振信号LO1分别输入到控制开关S1a、S1b、S2a、S2b，其中，输入到控制开关S2a、S2b的本振信号为通
Buffer0增强后的本振信号；过然后根据实际需求，选择性地闭合或断开S1a、S1b、S2a、S2b，如图5中，S1a、S1b、S2a、S2b均处于闭合状态，分频器和混频器Mixer1a、Mixer1b、Mixer2a、Mixer2b接收到的是本振信号LO1，Mixer0a、Mixer0b、Mixer3a、Mixer3b无输入信号；从而实现为多路射频接收机或发射机提供同频率的本振信号，满足多输入多输出射频收发机对本振信号的要求。
图6为本发明又一实施例当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路12中各驱动器和控制开关的状态示意图，如图6所示，当所述本振信号控制电路中的控制开关S1闭合、S2断开、Buffer0、Buffer1、Buffer2处于开启状态时，由VCO1输出的本振信号LO1输出到本振信号主路径上，并分别输入到控制开关S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b，其中，输入到控制开关S0a、S0b的本振信号为通Buffer1增强后的本振信号，输入到控制开关S2a、S2b的本振信号为通Buffer0增强后的本振信号；输入到S3a、S3b的本振信号为通Buffer0和Buffer2增强后的本振信号；然后根据实际需求，选择性地闭合或断开S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b，如图6中，S0a、S0b、S1a、S1b、S2a、S2b、S3a、S3b均处于闭合状态，分频器和混频器Mixer0a、Mixer0b、Mixer1a、Mixer1b、Mixer2a、Mixer2b、Mixer3a、Mixer3b接收到的是本振信号LO1，从而实现为多路射频接收机或发射机提供同频率的本振信号，满足多输入多输出射频收发机对本振信号的要求。
本发明实施例中，仅仅是以图2至图6所述电路结构为例，并不限定此范围，在实际应用中，可以对上述电路结构进行调整，例如，增加或减少电路中各器件的数量、调整电路中各器件的位置以及各器件之间的连接关系，从而适应不同的本振信号频率要求，这些均属于本发明的保护范围。
本发明实施例还提供了一种本振电路配置方法，图7为本发明实施例
本振电路配置方法流程示意图，如图7所示，本发明实施例中，所述本振电路配置方法包括以下步骤：
步骤701：产生不同频率的本振信号；
本发明实施例中，所述产生不同频率的本振信号包括：通过至少两个本振信号产生器产生本振信号，其中，每个本振信号产生器产生一种频率的本振信号。
步骤702：根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
其中，所述根据射频收发机的工作模式，配置相同频率或不同频率的本振信号包括：当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路为射频收发机配置不同频率的本振信号；当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路为射频收发机配置相同频率的本振信号。
本发明实施例中所述方法还包括：增强本振信号产生电路产生的本振信号；
所述为射频收发机配置相同频率或不同频率的本振信号包括：通过驱动器的开启和关闭、以及通过控制开关控制本振信号控制电路中各线路的断开和闭合，协同控制输出相同频率或不同频率的本振信号。
本发明实施例中，当驱动器处于开启状态时，所述驱动器能够将输入到自身的本振信号进行增强后再进行输出，因此，当射频收发机距离本振信号产生器较远时，需要驱动器将线路中的本振信号进行增强后，再发送到分频器和混频器，从而保证分频器和混频器能够接受到强度符合要求的本振信号；当驱动器处于关闭状态时，所述本振信号无法通过驱动器，所述驱动器也无法实现本振信号增强的功能。
本发明实施例还提供了一种射频收发机，所述射频收发机包括图1至
图6所述本振信号配置电路。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的本振信号配置方法。
本发明实施例中记载的本振信号配置电路、本振信号配置方法及存储介质只以上述实施例为例，但不仅限于此，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
本发明实施例通过本振信号产生电路产生不同频率的本振信号；通过本振信号控制电路配置相同频率或不同频率的本振信号。如此，可以实现对VCO和PLL的复用，使用尽可能少的VCO和PLL提供尽可能多的本振信号，并将相同频率或者不同频率的本振信号分发给不同的射频接收机，为同时具有载波聚合和多输入多输出功能的射频收发机提供不同的本振信号。在支持实现收发机功能多样化的同时，减小芯片面积、降低芯片功耗和芯片成本。
Claims (10)
- 一种本振信号配置电路，所述电路包括：本振信号产生电路，本振信号控制电路；其中，所述本振信号产生电路，配置为产生不同频率的本振信号；所述本振信号控制电路，配置为根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
- 根据权利要求1所述电路，其中，所述本振信号产生电路包括至少两个本振信号产生器，每个本振信号产生器产生一种频率的本振信号。
- 根据权利要求1所述电路，其中，所述本振信号控制电路配置为：当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路为射频收发机配置不同频率的本振信号；当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路为射频收发机配置相同频率的本振信号。
- 根据权利要求3所述电路，其中，所述本振信号控制电路包括驱动器和控制开关，其中，所述驱动器，配置为增强本振信号产生电路产生的本振信号，并与控制开关协同控制输出相同频率或不同频率的本振信号；所述控制开关，配置为通过控制所述本振信号控制电路中各线路的断开和接通，与驱动器协同控制输出相同频率或不同频率的本振信号。
- 一种本振信号配置方法，所述方法包括：产生不同频率的本振信号；根据射频收发机的工作模式，配置相同频率或不同频率的本振信号。
- 根据权利要求5所述方法，其中，所述产生不同频率的本振信号包括：通过至少两个本振信号产生器产生本振信号，其中，每个本振信号产 生器产生一种频率的本振信号。
- 根据权利要求5所述方法，其中，所述根据射频收发机的工作模式，配置相同频率或不同频率的本振信号包括：当所述射频收发机处于载波聚合工作模式时，所述本振信号控制电路为射频收发机配置不同频率的本振信号；当所述射频收发机处于多输入多输出工作模式时，所述本振信号控制电路为射频收发机配置相同频率的本振信号。
- 根据权利要求7所述方法，其中，所述方法还包括：增强本振信号产生电路产生的本振信号；所述为射频收发机配置相同频率或不同频率的本振信号包括：通过驱动器的开启和关闭、以及通过控制开关控制本振信号控制电路中各线路的断开和闭合，协同控制输出相同频率或不同频率的本振信号。
- 一种射频收发机，所述射频收发机包括权利要求1至4任一项所述本振信号配置电路。
- 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行权利要求5至8任一项所述本振信号配置方法。
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| CN112400339A (zh) * | 2019-06-03 | 2021-02-23 | 华为技术有限公司 | 一种无线通信装置及载波切换方法 |
| CN113115436A (zh) * | 2021-03-10 | 2021-07-13 | 清华大学 | 信标的定位方法、装置、主站、定位系统和存储介质 |
| CN119402068A (zh) * | 2024-12-31 | 2025-02-07 | 长沙金维集成电路股份有限公司 | 一种卫星短报文射频电路及其变频方法 |
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| CN107515387B (zh) * | 2017-08-31 | 2020-05-08 | 北京无线电测量研究所 | 一种双激励信号生成方法和系统 |
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| US20120268215A1 (en) * | 2010-08-22 | 2012-10-25 | Krohne Messtechnik Gmbh | Circuit arrangement for generation of radio frequency output signals which form a broadband frequency ramp |
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