CN117955515A - Radio frequency circuit and electronic equipment - Google Patents

Abstract

The application discloses a radio frequency circuit and an electronic device, belonging to the technical field of communication, wherein the radio frequency circuit of the embodiment of the application comprises: the first module is used for receiving downlink physical signals and/or physical channels; the second module is used for receiving a low-power consumption wake-up signal; an antenna; the control module is used for controlling at least one of the first module and the second module to work.

Description

Radio frequency circuit and electronic equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a radio frequency circuit and electronic equipment.

Background

The New air interface (NR) introduces a low power signal to reduce the power consumption of the terminal. For example, the electronic device may include a first module and a second module, the low power consumption signal includes a low power consumption wake-up signal, the first module may be turned off or set to a deep sleep state (deep-SLEEP STATE), a light sleep state (light-SLEEP STATE), or a micro sleep state (micro-SLEEP STATE) when the electronic device is idle, and the low power consumption wake-up signal for waking up the first module is monitored through the second module, thereby achieving the purpose of reducing power consumption of the electronic device. The first module and the second module have independent antenna resources, which can cause the antenna resources to occupy larger space of the terminal and increase cost.

Disclosure of Invention

The embodiment of the application provides a radio frequency circuit and electronic equipment, which can realize the simultaneous operation of a first module and a second module on the premise of not increasing antenna resources.

In a first aspect, there is provided a radio frequency circuit comprising:

the first module is used for receiving downlink physical signals and/or physical channels;

the second module is used for receiving a low-power consumption wake-up signal;

An antenna;

The control module is used for controlling at least one of the first module and the second module to work.

In a second aspect, an electronic device is provided, the electronic device comprising the radio frequency circuit of the first aspect.

In an embodiment of the present application, a radio frequency circuit includes: the first module is used for receiving downlink physical signals and/or physical channels; the second module is used for receiving a low-power consumption wake-up signal; an antenna; the control module is used for controlling at least one of the first module and the second module to work. Therefore, the first module and the second module use the same antenna resource, so that the space occupied by the antenna resource on the terminal can be reduced, and the miniaturization of the electronic equipment is facilitated.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

Fig. 2 is a schematic structural diagram of a radio frequency circuit according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a portion of a RF circuit according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a portion of a RF circuit according to an embodiment of the present application;

FIG. 5 is a third schematic diagram of a portion of a RF circuit according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a receiving end according to an embodiment of the present application;

FIG. 7 is a second schematic diagram of a RF circuit according to an embodiment of the present application;

FIG. 8 is a third schematic diagram of a RF circuit according to an embodiment of the present application;

FIG. 9 is a schematic diagram of a RF circuit according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 101 and a network device 102. The terminal 101 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (ultra-Mobile Personal Computer, UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device with a wireless communication function, such as a refrigerator, a television, a washing machine, a furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, or a self-service machine, etc., the wearable device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 101 is not limited in the embodiment of the present application. The network-side device 102 may include an access network device or a core network device, where the access network device 102 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network element. The access network device 102 may include a base station, a WLAN access Point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a home node B, a home evolved node B, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that the base station in the NR system is merely described by way of example in the embodiment of the present application, and the specific type of the base station is not limited.

The radio frequency circuit and the electronic device provided by the embodiment of the application are described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present application provides a radio frequency circuit, including:

A first module 11, where the first module 11 is configured to receive a downlink physical signal and/or a physical channel;

A second module 12, the second module 12 being configured to receive a low power wake-up signal;

An antenna 13;

The control module 14, the first module 11 and the second module 12 are both connected with the antenna 13 through the control module 14, and the control module 14 is used for controlling at least one of the first module 11 and the second module 12 to work.

The second module 12 may also be called a low power wake-up module, a wake-up receiving module, a low power wake-up receiving module, or a wake-up module. The second module 12 may be configured to trigger to wake up the first module 11 to receive a downlink physical signal and/or a physical channel when receiving a wake-up signal with low power consumption.

In one embodiment, the second module 12 may be configured to trigger to wake up the first module 11 to receive a target downlink physical signal and/or a target physical channel when a low power wake-up signal is received, where the target downlink physical signal may be a specific downlink physical signal and the target physical channel may be a specific physical channel.

In addition, the control module 14 may control the first module 11 to operate, or control the second module 12 to operate, or control the first module 11 and the second module 12 to operate simultaneously, where the operation of the first module 11 may refer to that the first module 11 is in a communication state with the antenna 13, the operation of the first module 11 receives a specific downlink physical signal or a physical channel, the operation of the second module 12 may refer to that the second module 12 is in a communication state with the antenna 13, and the second module 12 receives a low power consumption wake-up signal. Operation may also be described as on, or initiated.

Specifically, in the case where the first module 11 operates, the first module 11 may receive a measurement signal to implement a measurement function, or the first module 11 may receive a downlink physical signal and/or a downlink control physical channel and/or a downlink data physical channel including the measurement signal when woken up by the second module 12. In the case where the second module 12 is operating, the second module 12 may receive a low power wake-up signal.

In one embodiment, the control module 14 may control the first module 11 and the second module 12 to operate simultaneously, and the second module 12 may receive a low power consumption wake-up signal; the first module 11 may receive the measurement signal to implement the measurement function, or the first module 11 may receive a downlink physical signal and/or a downlink control physical channel and/or a downlink data physical channel including the measurement signal when awakened by the second module 12.

In addition, the number of the antennas 13 may be one or more, one antenna 13 may correspond to one control module 14, and each control module 14 is connected to the first module 11 and the second module 12, that is, the first module 11 and the second module 12 may receive and transmit signals through multiple antennas.

In one embodiment, the control module 14 may include an antenna switching unit 141 (ANTENNA SWITCH module) and a Matching network (Matching network), and the antenna 13 may be enabled to communicate with the first module 11 via the Matching network or the antenna 13 may be enabled to communicate with the second module 12 via the Matching network by switching through the antenna switching unit 141.

It should be noted that the first module 11 may be a main communication module. Illustratively, as shown in fig. 3, the radio frequency front end of the main communication module may include a Duplexer (duplex), a radio frequency filter (RF filter), a Switch (Switch), a low noise Amplifier (Low Noise Amplifier, LNA), a Power Amplifier (PA), and the like. The main communication module can select different working frequency bands through the antenna switching unit; antenna impedance matching on different frequency bands can be flexibly realized through a matching network, so that the optimal performance of radio frequency signal transmission and reception is achieved; when the antenna switching unit is switched to a frequency division multiplexing (Frequency Division Duplex, FDD) frequency band, the simultaneous transmission and reception of signals in the frequency band can be realized through the duplexer, and the duplexer also has a radio frequency filtering function; when the antenna switching unit is switched to a time division multiplexing (Time Division Duplex, TDD) frequency band, after passing through the radio frequency filter, one of transmission or reception on the frequency band is selected through a switch; the uplink transmission amplifies the transmission signal by the PA, and the downlink reception amplifies the reception signal by the LNA. The radio frequency circuit includes a Transceiver section (Transceiver) for converting a radio frequency signal to a baseband signal by down-conversion or up-conversion or converting a baseband signal to a radio frequency signal in addition to the radio frequency front end section, and processing the converted signal by a baseband processing unit (Baseband processing).

Additionally, the second module 12 may be a low power wake-up module. In one embodiment, as shown in fig. 4, the Low power wake-up module may include a radio frequency filter (e.g., a radio frequency band pass filter (Radio Frequency Band PASS FILTER, RF BPF)), a radio frequency envelope detection (RF Envelop detector), a Baseband amplifier (Baseband Amplifier, BB AMP), a Baseband filter (e.g., a Baseband Low-pass filter (BB LPF PASS FILTER)), a Comparator (Comparator) or an analog-to-digital converter (ADC), and a digital processing unit (e.g., a main controller), etc. The radio frequency signal is received by an antenna, is matched with a network, is subjected to band-pass filtering, is amplified by an LNA (low-frequency amplifier), and is converted into a baseband signal by radio frequency envelope detection, is amplified and is subjected to low-pass filtering, and is amplified, and then the analog signal is converted into a digital signal by a comparator or an ADC (analog-to-digital converter), and is subjected to digital processing in a digital processing unit. The envelope detection is adopted to convert the radio frequency signal into the baseband signal, and only the signal amplitude information is utilized, so that the method is more suitable for ASK modulation.

In another embodiment, as shown in fig. 5, the low power wake-up module may include a radio frequency filter, a ring oscillator, a mixer (mixer), an intermediate frequency (INTERMEDIATE FREQUENCY, IF) amplifier (IF AMP), an intermediate frequency filter (IF BPF), intermediate frequency envelope detection (IF Envelop detector), a baseband amplifier, a baseband filter, a comparator or ADC, and a digital processing unit (e.g., a host controller). The radio frequency signal is received through an antenna, matched with a network, subjected to radio frequency band-pass filtering, and mixed with a local signal generated by a ring oscillator to be changed into an intermediate frequency signal; after intermediate frequency amplification and intermediate frequency filtering, an amplified intermediate frequency signal is obtained; converting the intermediate frequency signal into a baseband signal through intermediate frequency envelope detection, amplifying, and low-pass filtering to obtain an amplified baseband signal; and then the analog signal is converted into a digital signal through a comparator or an ADC, and the digital signal is processed in a digital processing unit. The envelope detection is adopted to change the radio frequency signal into the baseband signal, and only the signal amplitude information is utilized, so that the method is more suitable for ASK modulation.

It should be noted that the terminal may include two modules, the first module 11 is a main communication module for receiving a downlink physical signal or a physical channel, and the second module 12 is a low-power wake-up module (i.e., a low-power wake-up receiving module) for receiving a wake-up signal (i.e., a low-power wake-up signal). As shown in fig. 6, when the main communication module is idle, the main communication module may be turned off or set to a deep sleep state (deep-SLEEP STATE), a light sleep state (light-SLEEP STATE), or a micro-SLEEP STATE, and the low power consumption wake-up module monitors the low power consumption wake-up signal, and when the wake-up signal sent by the sending end is successfully detected and includes information for waking up the terminal, the wake-up main communication module is triggered to enter into an operating state, so that the main communication module can receive a downlink physical signal or a physical channel, and when the main communication module is not woken, the main communication module is in the off or deep sleep state, the light sleep state, or the micro sleep state, and only receives a part of the downlink physical signal or the physical channel, such as a measurement signal, or does not receive. In the related technology, the terminal introduces the low-power consumption wake-up module, and when the hardware resource units of the main communication module and the low-power consumption wake-up module have no conflict, the requirement of simultaneously receiving signals can be met. However, when there is a hardware resource conflict between the low power consumption wake-up module and the main communication module, a method for simultaneously receiving signals is not generally implemented.

The existing communication module of the terminal has high power consumption, the main communication module can be closed or set to be in a deep sleep state (deep-SLEEP STATE) or a light sleep state (light-SLEEP STATE) or a micro-sleep state (micro-SLEEP STATE) when idle through introducing the low power consumption wake-up module, and the low power consumption wake-up signal is monitored through the low power consumption wake-up module, so that the overall power consumption of the terminal is greatly reduced. In this embodiment, when the low-power consumption wake-up module is introduced, the terminal multiplexes the hardware units included in the existing communication module as much as possible, thereby reducing the cost and size of the terminal, and avoiding or reducing the influence on the performance of the existing communication module as much as possible. In addition, considering that for the terminal introducing the low-power consumption wake-up module, there is a need for the main communication module (i.e. the existing communication module) and the low-power consumption wake-up module to simultaneously receive signals, and there is a need for the main communication module to receive measurement signals and the low-power consumption wake-up module to monitor the low-power consumption wake-up signals, the hardware design of the radio frequency circuit in the embodiment supports the function.

In an embodiment of the present application, a radio frequency circuit includes: a first module 11, where the first module 11 is configured to receive a downlink physical signal and/or a physical channel; a second module 12, the second module 12 being configured to receive a low power wake-up signal; an antenna 13; the control module 14, the first module 11 and the second module 12 are both connected with the antenna 13 through the control module 14, and the control module 14 is used for controlling at least one of the first module 11 and the second module 12 to work. In this way, the same antenna resource is used by the first module 11 and the second module 12, so that the space occupied by the antenna resource in the terminal can be reduced, which is beneficial to miniaturization of the electronic device.

Optionally, the second module 12 is configured to trigger to wake up the first module 11 to receive a downlink physical signal and/or a physical channel when receiving a wake-up signal with low power consumption.

In one embodiment, the second module 12 is configured to trigger, when receiving a wake-up signal with low power consumption, to wake-up the first module 11 in operation to receive a downlink physical signal and/or a physical channel.

In one embodiment, the second module 12 is configured to trigger, when receiving a wake-up signal with low power consumption, to wake-up the first module 11 in operation to receive a target downlink physical signal and/or a target physical channel, where the target downlink physical signal may be a specific downlink physical signal, and the target physical channel may be a specific physical channel.

Alternatively, as shown in fig. 7, the control module 14 includes an antenna switching unit 141, and the first module 11 and the second module 12 are connected to the antenna 13 through the antenna switching unit 141.

Wherein at least one of the first module 11 and the second module 12 operates. The first module 11 and the second module 12 may be respectively connected to the antenna switching unit 141, and the antenna switching unit 141 turns on at least one of the first module 11 and the second module 12.

In this embodiment, the control module 14 includes an antenna switching unit 141, and the first module 11 and the second module 12 are connected to the antenna 13 through the antenna switching unit 141, so that the communication state between the antenna 13 and the first module 11 and the second module 12 can be controlled by the antenna switching unit 141, so that at least one of the first module 11 or the second module 12 operates.

Optionally, as shown in fig. 7, the control module 14 further includes a first impedance matching unit 142, and the second module 12 is connected to the antenna switching unit 141 through the first impedance matching unit 142.

The first impedance matching unit 142 may include an impedance matching network.

In one embodiment, the antenna switching unit 141 is connected to the first impedance matching unit 142, and the first impedance matching unit 142 is connected to the second module 12.

In this embodiment, the control module 14 further includes a first impedance matching unit 142, and the second module 12 is connected to the antenna switching unit 141 through the first impedance matching unit 142, so that the portion of the signal received by the second module 12 leaking to the second module 12 can meet the preset condition by performing impedance matching through the first impedance matching unit 142, thereby improving the performance of the radio frequency circuit.

Optionally, as shown in fig. 7, the control module 14 further includes a second impedance matching unit 143, and the first module 11 is connected to the antenna switching unit 141 through the second impedance matching unit 143.

Wherein the second impedance matching unit 143 may include an impedance matching network.

In one embodiment, the antenna switching unit 141 is connected to the second impedance matching unit 143, and the second impedance matching unit 143 is connected to the first module 11.

In one embodiment, the second module 12 includes a first rf filter 121, an rf envelope detection unit 123, and a first baseband processing unit 122, one end of the first rf filter 121 is connected to the first impedance matching unit 142, the other end of the first rf filter 121 is connected to the first rf envelope detection unit 123, and the rf envelope detection unit 123 is connected to the first baseband processing unit 122.

Wherein the other end of the first rf filter 121 may be connected to the first rf envelope detection unit 123 through a first LNA.

In one embodiment, the first module 11 includes a second rf filter 111, a duplexer 112, a transceiver unit 113, and a second baseband processing unit 114, where one end of the second rf filter 111 is connected to the second impedance matching unit 143, the other end of the second rf filter 111 is connected to the transceiver unit 113, one end of the duplexer 112 is connected to the second impedance matching unit 143, the other end of the duplexer 112 is connected to the transceiver unit 113, and the transceiver unit 113 is connected to the second baseband processing unit 114;

wherein the second radio frequency filter 111 operates in a time division multiplexing TDD frequency band, and the diplexer 112 operates in a frequency division multiplexing FDD frequency band.

The other end of the second rf filter 111 may be connected to the transceiver 113 through a switch, a second LNA and a first PA. Illustratively, the other end of the second rf filter 111 is connected to a first end of a switch, a second end of the switch is connected to the second LNA, and a third end of the switch is connected to the first PA. The first module 11 receives a signal through the second rf filter 111 in case that the first end of the switch is conducted with the second end of the switch; the first module 11 sends a signal through the second rf filter 111 in case the first terminal of the switch is in conduction with the third terminal of the switch.

The duplexer 112 may be connected to the transceiver 113 through a third LNA and a second PA. Illustratively, a first end of the diplexer 112 is connected to the second impedance matching unit 143, a second end of the diplexer 112 is connected to a third LNA, and a third end of the diplexer 112 is connected to a second PA. The third LNA and the second PA are both connected to the transceiver 113, the first module 11 receives signals through the diplexer 112, the third LNA, and the communication leg of the transceiver 113, and the first module 11 transmits signals through the diplexer 112, the second PA, and the communication leg of the transceiver 113.

It should be noted that, in this embodiment, the radio frequency circuit may select different operating frequency bands through the antenna switching unit 141; the impedance matching of the antenna 13 on different frequency bands can be flexibly realized through the impedance matching unit in the radio frequency circuit, so that the optimal performance of radio frequency signal transmission and reception is achieved; when the antenna switching unit 141 switches to the FDD band, simultaneous transmission and reception of signals in the band can be achieved through the duplexer 112, and the duplexer 112 also has a radio frequency filtering function; when the antenna switching unit 141 switches to the TDD band, after passing through the second rf filter 111, one of transmission or reception on the band is selected by a switch; the uplink transmission amplifies the transmission signal by the first PA, and the downlink reception amplifies the reception signal by the second LNA. The radio frequency circuit includes a transceiver unit 113 that converts a radio frequency signal to a baseband signal by down-conversion or up-conversion or converts a baseband signal to a radio frequency signal in addition to the radio frequency front end portion, and performs processing by a second baseband processing unit 114.

In this embodiment, the control module 14 further includes a second impedance matching unit 143, and the first module 11 is connected to the antenna switching unit 141 through the second impedance matching unit 143, so that the portion of the signal received and transmitted by the first module 11 leaking to the second module 12 can meet the preset condition by performing impedance matching through the second impedance matching unit 143, thereby improving the performance of the radio frequency circuit.

Optionally, when the control module 14 controls the first module 11 and the second module 12 to operate simultaneously, the link where the second module 12, the antenna switching unit 141, the first impedance matching unit 142 and the antenna 13 are located is turned on, and the first impedance matching unit 142 performs impedance matching; the first module 11, the antenna switching unit 141, the second impedance matching unit 143, and the link where the antenna 13 is located are turned on, and the second impedance matching unit 143 performs impedance matching.

Alternatively, in the case where the control module 14 controls the first module 11 and the second module 12 to operate simultaneously, the first impedance matching unit 142 and the second impedance matching unit 143 are configured to perform impedance matching, so that signal leakage between the first module 11 and the second module 12 satisfies a preset condition.

The signal leakage between the first module 11 and the second module 12 meets a preset condition, and the signal leakage parameter between the first module 11 and the second module 12 may be smaller than the preset leakage parameter. The preset leakage parameters may be obtained in advance, as defined by a protocol, or by field test.

In an embodiment, the second impedance matching unit 143 and the first impedance matching unit 142 adjust matching impedances according to the first module 11 and the second module 12 turned on by the antenna switching unit 141, and the adjusted matching impedances meet signal leakage requirements of the first module 11 and the second module 12.

In this embodiment, in the case where the control module 14 controls the first module 11 and the second module 12 to operate simultaneously, the first impedance matching unit 142 and the second impedance matching unit 143 are configured to perform impedance matching, so that signal leakage between the first module 11 and the second module 12 satisfies a preset condition. In this way, the performance of the radio frequency circuit can be improved by performing impedance matching by the first impedance matching unit 142 and the second impedance matching unit 143.

Optionally, as shown in fig. 7, the control module 14 further includes a third impedance matching unit 144, and the antenna 13 is connected to the antenna switching unit 141 through the third impedance matching unit 144.

Wherein the third impedance matching unit 144 may include an impedance matching network.

In one embodiment, the antenna switching unit 141 is connected to a third impedance matching unit 144, and the third impedance matching unit 144 adjusts the matching impedance according to the first module 11 and/or the second module 12 turned on by the antenna switching unit 141.

In one embodiment, the antenna switching unit 141 turns on the first module 11 and the second module 12, and the third impedance matching unit 144 adjusts the matching impedance according to at least one frequency band operated by the turned on first module 11 and the second module 12, where the adjusted matching impedance meets the antenna 13 requirement of the first module 11 and the second module 12 in the at least one operating frequency band.

In this embodiment, the control module 14 further includes a third impedance matching unit 144, and the antenna 13 is connected to the antenna switching unit 141 through the third impedance matching unit 144, so that the impedance matching requirement of the antenna 13 can be met on different working frequency bands through the third impedance matching unit 144.

Optionally, the third impedance matching unit 144 is configured to perform impedance matching, so that the impedance meets a preset antenna impedance matching condition on the operating frequency band of the first module 11 and/or on the operating frequency band of the second module 12.

Wherein, the satisfaction of the preset antenna impedance matching condition may be impedance matching with the antenna 13. The operating frequency band of the first module 11 may be the same as the operating frequency band of the second module 12, or the operating frequency band of the first module 11 may be different from the operating frequency band of the second module 12.

In one embodiment, the control module 14 may only control the operation of the first module 11, and the third impedance matching unit 144 is configured to perform impedance matching so that the impedance matches the antenna 13 in the operating frequency band of the first module 11.

In one embodiment, the control module 14 may only control the operation of the second module 12, and the third impedance matching unit 144 is configured to perform impedance matching so that the impedance matches the antenna 13 in the operating frequency band of the second module 12.

In one embodiment, the control module 14 may control the first module 11 and the second module 12 to operate simultaneously, where, in a case where an operation frequency band of the first module 11 is the same as an operation frequency band of the second module 12, the third impedance matching unit 144 is configured to perform impedance matching so that an impedance matches the antenna 13 in the operation frequency band; in case the operating frequency band of the first module 11 is different from the operating frequency band of the second module 12, the third impedance matching unit 144 is configured to perform impedance matching such that the impedance matches the antenna 13 both on the operating frequency band of the first module 11 and on the operating frequency band of the second module 12.

Optionally, the first module 11 includes at least one of:

A New air interface (NR) communication module; a long term evolution (Long Term Evolution, LTE) communication module, a narrowband internet of things (Narrow Band Internet of Things, NB-IOT) communication module, a Machine-to-Machine (MTC) communication module, an NR sidelink communication module, an LTE sidelink communication module, a WIFI communication module.

Optionally, the second module 12 is a low power wake-up module.

In this embodiment, by designing the antenna switching unit 141, the first impedance matching unit 142 and the second impedance matching unit 143, the low-power wake-up module can multiplex the antenna 13 of the main communication module, and the third impedance matching unit 144 and the antenna switching unit 141 realize that the low-power wake-up module and the main communication module work simultaneously. The embodiment can support the low-power consumption wake-up module and the main communication module to work simultaneously while multiplexing the hardware units.

Example 1:

In this embodiment, the radio frequency circuit includes a main communication module (i.e. the first module 11) and a low power consumption wake-up module (i.e. the second module 12), where the main communication module may be an NR communication module; the wireless communication system comprises at least one of an LTE communication module, an NB-IOT communication module, an MTC communication module, an NR side link communication module, an LTE side link communication module and a WIFI communication module, wherein a low-power consumption wake-up module is only used for receiving low-power consumption signals and has no transmitting function.

As shown in fig. 7, the radio frequency front end of the present embodiment includes an antenna switching unit (ANTENNA SWITCH module, ASM), which can switch among a plurality of communication modules, and for the main communication module, includes a transceiver module on the TDD band (i.e., the second radio frequency filter operates on the TDD band i), and a transceiver module on the FDD band (i.e., the duplexer operates on the FDD band j); for the low-power consumption wake-up module, the working frequency band of the low-power consumption wake-up module can be different from that of the main communication module, and further, the antenna switching unit can simultaneously start the main communication module and the low-power consumption wake-up module. When the main communication module and the low-power consumption awakening module are simultaneously started, a second impedance matching unit between the antenna switching unit and the main communication module and a first impedance matching unit between the antenna switching unit and the low-power consumption awakening module are respectively adjusted, so that the part of the signal transmitted and received through the main communication module, which is leaked to the low-power consumption awakening module, meets the minimum leakage requirement index, and the part of the signal received through the low-power consumption awakening module, which is leaked to the main communication module, meets the minimum leakage requirement index. The minimum leakage requirement index can be obtained in advance, such as protocol definition, field test definition and the like.

When the main communication module and the low-power consumption wake-up module are started at the same time, the matching impedance of the third impedance matching unit can be adjusted according to the frequency bands of the started main communication module and the low-power consumption wake-up module, and the adjusted matching impedance meets the antenna requirements of two working frequency bands. In addition, in this embodiment, only one antenna is used as an example to perform a schematic description of a hardware structure, and for a plurality of antennas, the hardware structure of each antenna connection is similar, which is not repeated in this embodiment.

In this embodiment, the antenna switching unit starts the main communication module on the FDD frequency band j and the low power consumption wake-up module on the frequency band k, so that the main communication module and the low power consumption wake-up module can receive simultaneously, for example, the main communication module receives the measurement signal to realize the measurement function, and the low power consumption wake-up module monitors and receives the low power consumption wake-up signal for waking up the main communication module. When the low-power consumption wake-up module successfully detects a low-power consumption wake-up signal for waking up the terminal, the wake-up main communication module is triggered to monitor a downlink control channel, so that the main communication module can only make measurement to reduce power consumption when no communication demand exists, and when the communication demand arrives, the wake-up main communication module can be triggered to wake up by the wake-up receiver.

Example 2:

The radio frequency circuit comprises a main communication module (i.e. the first module 11) and a low power wake-up module (i.e. the second module 12). Compared with embodiment 1, the operating frequency band of the low-power wake-up module is the same as that of the main communication module, for example, the antenna switching unit simultaneously opens the main communication module and the wake-up receiving module, as shown in fig. 8, both modules operate in TDD frequency band i, i.e. the first radio frequency filter and the second radio frequency filter operate in TDD frequency band i; or as shown in fig. 9, both modules operate in FDD band j, i.e., the first rf filter and the diplexer both operate in FDD band j. At this time, the first, second, and third impedance matching units may be adjusted according to the TDD band i or the FDD band j to achieve impedance matching.

The embodiment of the application also provides electronic equipment which comprises the radio frequency circuit.

Taking an electronic device as an example, the terminal includes the radio frequency circuit according to the embodiment of the present application.

As shown in fig. 10, the terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 10 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042, where the graphics processor 10041 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 1009 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

Wherein, the radio frequency unit includes radio frequency circuit, and the radio frequency circuit includes:

the first module is used for receiving downlink physical signals and/or physical channels;

the second module is used for receiving a low-power consumption wake-up signal;

An antenna;

The control module is used for controlling at least one of the first module and the second module to work.

Optionally, the second module is configured to trigger to wake up the first module to receive a downlink physical signal or a physical channel when receiving a wake-up signal with low power consumption.

Optionally, the control module includes an antenna switching unit, and the first module and the second module are both connected with the antenna through the antenna switching unit.

Optionally, the control module further includes a first impedance matching unit, and the second module is connected to the antenna switching unit through the first impedance matching unit.

Optionally, the control module further includes a second impedance matching unit, and the first module is connected to the antenna switching unit through the second impedance matching unit.

Optionally, under the condition that the control module controls the first module and the second module to work simultaneously, the second module, the antenna switching unit, the first impedance matching unit and a link where the antenna is located are conducted, and the first impedance matching unit performs impedance matching; the first module, the antenna switching unit, the second impedance matching unit and the link where the antenna is located are conducted, and the second impedance matching unit performs impedance matching.

Optionally, the control module further includes a third impedance matching unit, and the antenna is connected to the antenna switching unit through the third impedance matching unit.

Optionally, the third impedance matching unit is configured to perform impedance matching, so that the impedance meets a preset antenna impedance matching condition on the operating frequency band of the first module and/or the operating frequency band of the second module.

Optionally, the first module includes at least one of:

A new air interface NR communication module; the system comprises a Long Term Evolution (LTE) communication module, a narrowband internet of things (NB-IOT) communication module, a machine-to-Machine (MTC) communication module, an NR side link communication module, an LTE side link communication module and a WIFI communication module.

Optionally, the second module is a low power wake-up module.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (11)

1.A radio frequency circuit, comprising:

the first module is used for receiving downlink physical signals and/or physical channels;

the second module is used for receiving a low-power consumption wake-up signal;

An antenna;

The control module is used for controlling at least one of the first module and the second module to work.

2. The radio frequency circuit according to claim 1, wherein the second module is configured to trigger to wake up the first module to receive a downlink physical signal and/or a physical channel in case of receiving a wake-up signal with low power consumption.

3. The radio frequency circuit of claim 1, wherein the control module comprises an antenna switching unit, and wherein the first module and the second module are each coupled to the antenna through the antenna switching unit.

4. The radio frequency circuit of claim 3, wherein the control module further comprises a first impedance matching unit, and the second module is connected to the antenna switching unit through the first impedance matching unit.

5. The radio frequency circuit of claim 4, wherein the control module further comprises a second impedance matching unit, the first module being connected to the antenna switching unit through the second impedance matching unit.

6. The radio frequency circuit according to claim 5, wherein, in a case where the control module controls the first module and the second module to operate simultaneously, a link where the second module, the antenna switching unit, the first impedance matching unit, and the antenna are located is turned on, and the first impedance matching unit performs impedance matching; the first module, the antenna switching unit, the second impedance matching unit and the link where the antenna is located are conducted, and the second impedance matching unit performs impedance matching.

7. A radio frequency circuit according to claim 3, wherein the control module further comprises a third impedance matching unit, the antenna being connected to the antenna switching unit by the third impedance matching unit.

8. The radio frequency circuit according to claim 7, wherein the third impedance matching unit is configured to perform impedance matching such that an impedance satisfies a preset antenna impedance matching condition on an operating frequency band of the first module and/or an operating frequency band of the second module.

9. The radio frequency circuit of claim 1, wherein the first module comprises at least one of:

A new air interface NR communication module; the system comprises a Long Term Evolution (LTE) communication module, a narrowband internet of things (NB-IOT) communication module, a machine-to-Machine (MTC) communication module, an NR side link communication module, an LTE side link communication module and a WIFI communication module.

10. The radio frequency circuit of claim 1, wherein the second module is a low power wake-up module.

11. An electronic device, characterized in that it comprises the radio frequency circuit of any one of claims 1-10.