CN114124118A - Radio frequency front-end module, wearable device, data transmission method and storage medium - Google Patents
Radio frequency front-end module, wearable device, data transmission method and storage medium Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/385—Transceivers carried on the body, e.g. in helmets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
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- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The embodiment of the application discloses a radio frequency front-end module, wearable equipment, a data transmission method and a storage medium. The radio frequency front end module comprises: the power amplifier comprises a logic control interface, a power amplification module and an antenna; the logic control interface is used for receiving the power control signal and transmitting the power control signal to the power amplification module; the power amplification module is used for controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal and amplifying the transmitting signal through the N power amplifiers to obtain an amplified transmitting signal; n is less than the total number of power amplifiers. And the antenna is used for transmitting the amplified transmission signal to the terminal so as to process data at the terminal. According to the embodiment of the application, the number of the power amplifiers in the working state is reduced, and the power consumption of the power amplification module is reduced, so that the power consumption of the radio frequency front-end module is reduced.
Description
Technical Field
The application relates to the technical field of computers, in particular to a radio frequency front-end module, wearable equipment, a data transmission method and a storage medium.
Background
A wearable device is a portable device that is worn directly on the user or integrated into the user's clothing or accessories. Wearable equipment is not only a hardware equipment, realizes powerful function through software support and data interaction, high in the clouds interaction more, and wearable equipment will bring very big transition to human life, perception. For example, Augmented Reality (AR) glasses in smart headsets are popular among users because AR technology is applied to the glasses and functions of navigation, telephone calling, video watching, and the like can be realized in addition to functions of ordinary glasses.
Wearable devices have very strict requirements on weight, volume, power consumption, heat generation and other parameters, otherwise the use experience of users is extremely influenced. Therefore, a common lightweight wearable device is tightly coupled to the terminal. Taking the wearable device as AR glasses and the terminal as a mobile phone as an example, circuits of a display part and an audio part in the AR glasses are distributed on the glasses, and circuits of a central data processing chip (which consumes more power and generates more heat) are distributed on the mobile phone, so as to reduce the weight, the power consumption, the volume, the heating performance and the like of the AR glasses.
Wearable equipment passes through Radio communication with the terminal to realize data transmission, in order to guarantee that the signal has sufficient coverage, need match Radio Front-end module (RFEM) on wearable equipment and the terminal. However, the rf front-end module increases the power consumption of the rf front-end module and also increases the power consumption of the wearable device while amplifying the transmission signal and the reception signal.
Disclosure of Invention
The embodiment of the application provides a radio frequency front-end module, wearable equipment, a data transmission method and a storage medium, and power consumption of the power amplification module is reduced by reducing the number of power amplifiers in working states, namely the power consumption of the radio frequency front-end module is reduced, so that the power consumption of the wearable equipment is reduced.
The technical scheme of the embodiment of the application is realized as follows:
in a first aspect, an embodiment of the present application provides a radio frequency front end module; the radio frequency front end module comprises: the power amplifier comprises a logic control interface, a power amplification module and an antenna; the logic control interface is used for receiving a power control signal and transmitting the power control signal to the power amplification module; the power amplification module is used for controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal, and amplifying the transmitting signal through the N power amplifiers to obtain an amplified transmitting signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers; and the antenna is used for transmitting the amplified transmission signal to a terminal.
In a second aspect, an embodiment of the present application provides a data transmission method, where the method is applied to the radio frequency front-end module in the first aspect, and the method includes: receiving a power control signal; controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal; when a transmitting signal is received, amplifying the transmitting signal through the N power amplifiers in a working state to obtain an amplified transmitting signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers; and transmitting the amplified transmission signal to a terminal.
In a third aspect, an embodiment of the present application provides a wearable device, where the wearable device includes: a radio frequency front end module as described in the first aspect, a memory and a processor; the memory stores a computer program operable on a processor, which when executed implements the steps in the data transmission method of the second aspect.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, on which executable instructions are stored, and when the computer-readable storage medium is executed by a processor, the data transmission method is implemented.
The embodiment of the application provides a radio frequency front-end module, wearable equipment, a data transmission method and a storage medium. The radio frequency front end module that this application embodiment provided includes: the power amplifier comprises a logic control interface, a power amplification module and an antenna; the logic control interface is used for receiving the power control signal and transmitting the power control signal to the power amplification module; the power amplification module is used for controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal and amplifying the transmitting signal through the N power amplifiers to obtain an amplified transmitting signal; n is less than the total number of power amplifiers. And the antenna is used for transmitting the amplified transmission signal to the terminal so as to process data at the terminal. The radio frequency front-end module provided by the embodiment of the application can be applied to wearable equipment, and in the process of mutual communication between the wearable equipment and a terminal, most of time, data are transmitted to the wearable equipment from the terminal. Therefore, in the embodiment of the present application, by controlling the N power amplifiers of the power amplification module to be in the working state, the number of the power amplifiers in the working state is reduced, rather than the whole power amplification module (i.e., M power amplifiers) being in the working state. On the premise of ensuring the efficiency of the power amplifier, the gain and linearity indexes of the power amplification module are properly reduced, and the power consumption of the radio frequency front-end module is reduced, so that the power consumption of the wearable equipment is reduced.
Drawings
Fig. 1 is a schematic view of an exemplary application scenario of a wearable device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating an alternative structure of a radio frequency front-end module according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram of an alternative structure of another rf front-end module according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another alternative radio frequency front-end module according to an embodiment of the present disclosure;
fig. 5 is a schematic diagram illustrating an alternative structure of a power amplification module according to an embodiment of the disclosure;
fig. 6 is a flowchart illustrating optional steps of a data transmission method according to an embodiment of the present disclosure;
fig. 7 is an alternative structural schematic diagram of a wearable device provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be understood that some of the embodiments described herein are only for explaining the technical solutions of the present application, and are not intended to limit the technical scope of the present application.
In order to better understand the wearable device provided in the embodiments of the present application, before describing the technical solutions of the embodiments of the present application, a description is given of the wearable device and related technologies.
The augmented reality technology is a technology for skillfully fusing virtual information and a real world, and widely applies various technical means such as multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, sensing and the like, and applies virtual information such as characters, images, three-dimensional models, music, videos and the like generated by a computer to the real world after analog simulation, wherein the two kinds of information supplement each other, thereby realizing the 'enhancement' of the real world.
In embodiments of the present application, wearable devices include, but are not limited to, smart watches, smart necklaces, wearable electronic socks, wearable glasses, and smart apparel. The wearable device is the AR glasses as an example, the AR glasses are products applying the AR technology to the electronic glasses, a plurality of functions can be achieved, the AR glasses can be regarded as a miniature mobile phone, the state of the user can be judged by tracking the eye sight track, and corresponding functions are started.
A common lightweight wearable device may be closely associated with the terminal, and for example, the wearable device may be connected to the terminal through Wireless communication technology, including but not limited to bluetooth and Wireless Local Area Network (WLAN), and the WLAN may include WIFI. The mutual communication of computer equipment is realized through a wireless communication technology, and a network system for mutual communication and resource sharing is formed. Through the wireless communication technology connection, the computer and the network can be connected without using a communication cable, so that the construction of the network and the movement of the terminal are more flexible.
Exemplarily, it is described that the wearable device is an AR glasses, the terminal is a mobile phone, and the wireless communication technology is WIFI, where the AR glasses are wirelessly connected with the mobile phone through the WIFI, and the WIFI has the advantages of high stability, low latency, and a higher transmission rate of an exchange bandwidth (e.g., Gbps order of magnitude), and can provide a fast data transmission scheme for the AR glasses and the mobile phone. However, WIFI also has its own limitation, and in order to ensure a sufficient coverage (usually, a range of several tens of meters), its peripheral circuit (i.e., AR glasses and mobile phone) needs to be collocated with a radio frequency front end module to ensure power amplification of its transmission signal and reception signal, thereby resulting in an increase in power consumption. Because the AR glasses adopt a scheme of combining the glasses and the mobile phone, the AR glasses and the mobile phone need to adopt a transmission mode with low delay, high speed and low power consumption so as to facilitate data transmission between the AR glasses and the mobile phone.
In the related art, one way is to reduce the requirement for transmission rate by compressing the quality of the pattern, thereby reducing power consumption. And meanwhile, the accuracy of the data is also reduced.
In another approach, the impact of high power consumption is supported by increasing battery capacity and heat dissipation devices. The addition of accessories also increases the weight of the wearable device.
In another manner, as shown in fig. 1, fig. 1 is a schematic diagram of an exemplary application scenario of a wearable device provided in an embodiment of the present application. In fig. 1, the wearable device is an AR glasses, the terminal is a mobile phone, and the power amplification module is a power module, the wearable device includes a radio frequency front end module, the radio frequency front end module includes a power module, and when the mobile phone approaches the AR glasses, the wearable device is represented in a close range in fig. 1 to control the dynamic state of the mobile phone and adjust the transmitting power of the mobile phone and the AR glasses, so as to reduce the transmission power and reduce the power consumption. When the handset is far from the AR glasses, fig. 1 shows a distance, both the handset and the AR glasses transmit and receive at the highest power. Since the used distance between the AR glasses and the mobile phone is usually a short distance (e.g., within 5 m), by reducing the transmission power of the mobile phone and the AR glasses, the power consumption of the mobile phone is already reduced, but the power consumption of the AR glasses is still high.
Based on the above-mentioned problems, an embodiment of the present application provides a radio frequency front end module, as shown in fig. 2, and fig. 2 is a schematic diagram of an alternative structure of the radio frequency front end module provided in the embodiment of the present application.
The rf front end module 20 includes: a logic control interface 201, a power amplification module 202 and an antenna 203; a logic control interface 201, configured to receive a power control signal and transmit the power control signal to the power amplification module 202; the power amplification module 202 is configured to control N power amplifiers of the power amplification module 202 to be in a working state according to the power control signal, and amplify the transmission signal through the N power amplifiers to obtain an amplified transmission signal, where N is a positive integer smaller than M, and M is the total number of the power amplifiers; an antenna 203 for transmitting the amplified transmission signal to the terminal.
In the embodiment of the present application, the rf front-end module 20 in fig. 2 may be applied to a wearable device, and the rf front-end module 20 includes a logic control interface 201, a power amplification module 202, and an antenna 203. The logic control interface 201 is used for logic control states, which can be understood as different connection states of the interface of the logic control interface 201, corresponding to the working states of different power amplifiers in the power amplification module 202. The logic control interface 201 receives a power control signal, which indicates the number of power amplifiers in the power amplifier module 202 that need to operate. The logic control interface 201 sets a connection state of its own interface according to the power control signal, and then transmits the power control signal to the power amplification module 202, so that the power amplification module 202 controls a part of the power amplifiers (i.e., N power amplifiers) to be in a working state according to the power control signal, thereby reducing the number of the power amplifiers in the working state. When the wearable device sends a signal (i.e., a transmission signal) to the terminal through the radio frequency front-end module 20, the transmission signal is amplified through the N power amplifiers to obtain an amplified transmission signal, and then the amplified transmission signal is transmitted to the terminal through the antenna 203.
In the embodiment of the present application, the power amplifying module 202 includes M power amplifiers, where M is a positive integer greater than or equal to 2. It is also understood that the power amplification module 202 is a multi-stage amplifier, and when M is equal to 1, the power amplification module 202 is a single-stage amplifier. When the wearable device sends a signal (i.e., a transmission signal) to the terminal through the rf front-end module 20, the N power amplifiers of the power amplification module 202 are controlled to be in an operating state, instead of the whole M power amplifiers, so as to reduce the power consumption of the power amplification module 202.
For example, taking the wearable device as AR glasses and the terminal as a mobile phone as an example, it can be understood that, compared to the manner of reducing the transmission power of the mobile phone and the AR glasses in fig. 1, in the embodiment of the present application, the transmission power of the AR glasses is reduced, and the transmission power of the mobile phone is reduced slightly or not reduced, so that the reduction range of the transmission power of the AR glasses is far greater than that of the AR glasses in fig. 1, thereby reducing the power consumption of the wearable device.
It should be noted that, the wearable device and the terminal are both equipped with the radio frequency front end module 20, and the radio frequency front end module 20 belongs to a hardware circuit, and can complete the transmission amplification and the reception amplification of the radio frequency signal, that is, the amplification of the transmission signal and the amplification of the reception signal, and can also be used for power coupling, logic control, switch switching, and the like. Because the sensitivity of the terminal to power consumption is smaller than that of the wearable device, the embodiment of the present application is combined with an actual application scenario, that is, the wearable device is closer to the terminal, and does not need a large transmission power, so that by reducing the number of power amplifiers in the power amplification module 202 in an operating state, the transmission power of the radio frequency front-end module 20 is reduced on the premise of not affecting the communication quality between the wearable device and the terminal, thereby reducing the power consumption of the wearable device.
The radio frequency front end module 20 provided in the embodiment of the present application includes: a logic control interface 201, a power amplification module 202 and an antenna 203; a logic control interface 201, configured to receive a power control signal and transmit the power control signal to the power amplification module 202; the power amplification module 202 is configured to control N power amplifiers of the power amplification module 202 to be in a working state according to the power control signal, and amplify the transmission signal through the N power amplifiers to obtain an amplified transmission signal; n is less than the total number of power amplifiers. An antenna 203 for transmitting the amplified transmission signal to the terminal for processing data at the terminal. Most of the time during which the wearable device and the terminal communicate with each other, data is transmitted from the terminal to the wearable device. Therefore, in the embodiment of the present application, by controlling the N power amplifiers of the power amplification module 202 to be in the working state, the number of the power amplifiers in the working state is reduced, rather than the whole power amplification module 202 (i.e., M power amplifiers) being in the working state. On the premise of ensuring the efficiency of the power amplifier, the gain and linearity indexes of the power amplification module 202 are properly reduced, and the power consumption of the radio frequency front-end module 20 is reduced, so that the power consumption of the wearable device is reduced.
In some embodiments, an optional structural schematic diagram of another radio frequency front end module provided in the embodiments of the present application is, as shown in fig. 3, based on the radio frequency front end module 20 in fig. 2, the radio frequency front end module 20 in fig. 3, further including: a power coupling circuit 204; the power coupling circuit 204 is respectively connected with the power amplification module 202 and the antenna 203; the power coupling circuit 204 is configured to distribute power of the amplified transmission signal to obtain a target transmission signal, and transmit the target transmission signal to the antenna 203; and an antenna 203 for transmitting the target transmission signal to the terminal.
In the embodiment of the present application, after the transmission signal is amplified by the N power amplifiers to obtain an amplified transmission signal, the amplified transmission signal passes through the power coupling circuit 204, a small portion of the signal enters the coupling port, a large portion of the signal enters the antenna 203, that is, the target transmission signal, and then the target transmission signal is transmitted to the terminal through the antenna 203. Since the antenna 203 transmits the target transmission signal to the terminal without knowing the power of the target transmission signal, the embodiment of the present application may also calculate the power of the target transmission signal according to a small portion of the signal entering the coupling port.
Illustratively, after the amplified transmission signal passes through the power coupling circuit 204, 1% of the power signal enters the coupling port, and 99% of the power signal enters the antenna 203, the power of the target transmission signal may be calculated according to the 1% of the power signal entering the coupling port, so as to determine the energy of the target transmission signal radiated by the antenna 203.
It should be noted that the power coupling circuit 204, which may also be denoted as CPL or CPLR, may be understood as a splitter applied to a microwave system, and distributes power on the trunk channel to each branch channel as required to achieve a splitting function.
In the embodiment of the present application, the rf front-end module 20 further includes a power coupling circuit 204; the power amplifier module 202 and the antenna 203 are respectively connected through a power coupling circuit 204; the power coupling circuit 204 is configured to distribute power of the amplified transmission signal to obtain a target transmission signal, and may also calculate power of the target transmission signal. The target transmission signal is then transmitted to antenna 203, and the target transmission signal is transmitted to the terminal through antenna 203. The adjustment result of the power amplification module 202 at this time can be checked in time according to the power of the target transmission signal, and reference is provided for the adjustment of the number of the power amplifiers in the next working state, so that the number of the power amplifiers in the working state can be reduced more accurately in the following process, and the power consumption of the power amplification module 202 is reduced.
In some embodiments, the power coupling circuit 204 is further configured to distribute the power of the amplified transmission signal to obtain the power of the coupling port; generates a new power control signal according to the power of the coupled port and sends the new power control signal to the logic control interface 201, and the new power control signal is used for determining the number of the power amplifiers in the working state when the signal is transmitted to the terminal next time.
In the embodiment of the present application, the power coupling circuit 204 distributes the power of the amplified transmission signal, a small portion of the signal enters the coupling port, and a large portion of the signal enters the antenna 203, i.e., the target transmission signal. The coupled port power can be derived from a small portion of the signal entering the coupled port. Then, a new power control signal is generated according to the coupled port power, and the new power control signal is sent to the logic control interface 201, and the new power control signal is used for determining the number of the power amplifiers in the working state when the signal is transmitted to the terminal next time. So that the power amplification module amplifies the transmitting signal, and the power of the obtained amplified transmitting signal is more suitable.
In the embodiment of the present application, the power of the target transmission signal is calculated according to the distribution ratio and the coupled port power of the power coupling circuit 204. According to the power of the target transmission signal, whether the number of the power amplifiers in the current power amplification module 202 in the working state is appropriate or not can be determined.
For example, if the power of the target transmission signal is too high, the number of power amplifiers in the next power amplification module 202 in the working state needs to be reduced; if the power of the target transmitting signal is proper, the number of the power amplifiers in the next power amplification module 202 in the working state is kept; if the power of the target transmission signal is too small, the number of the power amplifiers in the next operation state in the power amplification module 202 needs to be increased.
It should be noted that in the embodiment of the present application, the power coupling circuit 204 generates a new power control signal according to the coupled port power, and sends the new power control signal to the logic control interface 201. It is understood that the power coupling circuit 204 may also send the coupled port power to the power control signal generation module, and the power control signal generation module generates a new power control signal according to the coupled port power and sends the new power control signal to the logic control interface 201. The embodiment of the present application does not limit the execution subject for generating the power control signal.
In this embodiment, if the power of the target transmission signal is too large or too small, a new power control signal is generated according to the power of the coupled port, the new power control signal is sent to the logic control interface 201, and the number of the power amplifiers in the working state is determined according to the new power control signal. Therefore, when the signal is transmitted to the terminal next time, the accuracy of reducing the number of the power amplifiers in the working state is improved, and the power consumption of the power amplification module 202 is reduced.
In some embodiments, logic control interface 201 includes a plurality of sub-interfaces; and a plurality of sub-interfaces for adjusting output level values thereof according to the power control signal, wherein the output level values of the plurality of sub-interfaces control operating states of the M power amplifiers of the power amplification module 202.
In the embodiment of the present application, after the logic control interface 201 receives the power control signal, the output level values of the plurality of sub-interfaces are adjusted according to the power control signal, the output level values include a high level and a low level, and different output level values of the plurality of sub-interfaces are combined in response to different power control signals. Therefore, the number of the power amplifiers in the power amplification module 202 in the working state is controlled, that is, the working states of the M power amplifiers of the power amplification module 202 are controlled.
Illustratively, the logical control interface 201 includes 4 interfaces: PAEN, LNAEN, SEL3, and SEL4 are illustrated as examples, the output level values of PAEN, LNAEN, SEL3, and SEL4 include a high level and a low level, and SEL3 and SEL4 may be used to control the rf front end module 20 to sleep, select different switches, and implement different functions. Taking 1 as an example of high level and 0 as an example of low level, different output level values of 4 interfaces may have multiple expressions, for example, when the output level values of PAEN, LNAEN, SEL3 and SEL4 are 1000 respectively, the number of power amplifiers in operation in the power amplification module 202 is 3, when the output level values of PAEN, LNAEN, SEL3 and SEL4 are 1010 respectively, the number of power amplifiers in operation in the power amplification module 202 is 2, and when the output level values of PAEN, LNAEN, SEL3 and SEL4 are 1110 respectively, the number of power amplifiers in operation in the power amplification module 202 is 1.
It should be noted that the logic control interface 201 may be a General-purpose input/output (GPIO) control line set. The GPIO control line group includes a plurality of ports, and the ports of the GPIO control line group can be controlled by a computer program and can be freely used, and the GPIO control line group sets a specific port to control the N power amplifiers of the power amplification module 202 to be in a working state. The GPIO control line set may also be controlled by a monitor chip (watchdog), and the number of power amplifiers in the power amplification module 202 in the operating state is controlled by accessing different ports in the GPIO control line set.
In this embodiment, the logic control interface 201 includes a plurality of sub-interfaces, and the output level values of the plurality of sub-interfaces in the logic control interface 201 are adjusted according to the power control signal to control the N power amplifiers of the power amplification module 202 to be in an operating state. When the power amplification module 202 receives the transmission signal, the transmission signal is amplified by the N power amplifiers, instead of the entire power amplification module 202 (i.e., the M power amplifiers) being in an operating state. The number of power amplifiers in operation is reduced, thereby reducing the power consumption of the power amplification module 202.
In some embodiments, the number of rf front-end modules 20 is plural; an antenna 203 for performing signal transmission with a terminal in different communication frequency bands; the different communication frequency bands correspond to different rf front-end modules 20, respectively.
In the embodiment of the present application, a plurality of radio frequency front end modules 20 may be collocated on the wearable device and the terminal, that is, a multiple-in multiple-out (MIMO) technology is adopted, and for example, 2 × 2MIMO requires that two radio frequency front end modules 20 are collocated on the wearable device and the terminal. In order to greatly improve channel capacity, MIMO can use multiple antennas 203 at both the transmitting end and the receiving end, and form a multiple-channel antenna 203 system between transmitting and receiving, thereby improving data transmission efficiency of wearable devices and terminals.
It should be noted that the Communication frequency bands include, but are not limited to, the frequency bands 5.150GHz-5.935GHz, 5.935GHz-7.125GHz, that is, the fifth Generation Mobile Communication Technology (5G) and 6G Technology, it is understood that the embodiments of the present application are also applicable to 3G, 4G, etc., and as the Technology develops, the radio frequency front end module 20 provided in the embodiments of the present application is also applicable to 7G, 8G, 9G, 10G, etc., which is not limited to the embodiments of the present application.
In the embodiment of the present application, different radio frequency front end modules 20 are used for data transmission in different communication frequency bands, so that data transmission in multiple communication frequency bands can be simultaneously supported, and the efficiency of data transmission is improved.
Next, an exemplary application of the embodiment of the present application in a practical application scenario will be described.
In the embodiment of the present application, the logic control interface includes an SEL/LNAEN/PAEN control line, the Power Amplifier module is a Power Amplifier (PA), the antenna is an Antipna (ANT), and the Power coupling circuit is CPL, as shown in fig. 4, fig. 4 is an optional structural schematic diagram of another radio frequency front end module provided in the embodiment of the present application, where SEL/LNAEN/PAEN in fig. 4 corresponds to the logic control interface 201 in fig. 2 and 3, PA corresponds to the Power Amplifier module 202 in fig. 2 and 3, ANT corresponds to the antenna 203 in fig. 2 and 3, and CPL corresponds to the Power coupling circuit 204 in fig. 3.
In the embodiment of the present application, the radio frequency front end module 20 shown in fig. 4 may be applied to wearable devices and terminals. If the wearable device and the terminal adopt a 2 × 2MIMO scheme, the wearable device and the terminal need to be collocated with two radio frequency front end modules, so that fig. 4 includes two Transmit channels (Transmit, T) and two Receive channels (Receive, R), the two Transmit channels include TX1 and TX0, and the two Receive channels include RX1 and RX0, where X is a pictographic symbol representing cross (cross), it can be understood that a TX of a party is connected to an RX of a party B, a TX of a party B is connected to an RX of a party a, and the two Transmit/Receive channels are the same, and one Transmit/Receive channel can be taken as an example for explanation.
In the embodiment of the present application, the transmit channel TX in fig. 4 includes a power amplifier PA, the power amplifier PA is used for amplifying the transmit signal, the receive channel RX includes a Low Noise Amplifier (LNA), and the LNA is used for amplifying the receive signal. The switch S0 in fig. 4 is used to switch the operating states of the transmitting channel TX and the receiving channel RX, and when the wearable device sends a signal to the terminal through the radio frequency front-end module 20, the connection mode of the switch S0 is as shown in fig. 4, and connects the power coupling circuit CPL with the ANT, where CPLR in fig. 4 represents a coupling port of the power coupling circuit CPL. When the wearable device receives a signal transmitted from the terminal, the ANT and the low noise amplifiers LNA and S are connected to each other by controlling the switch S0. Vcc in fig. 4 denotes a power supply connection, GND denotes ground, C denotes a capacitor, and L denotes an inductor. The power coupling circuit CPL in fig. 4 is used for the detection of coupled power and the SEL/LNAEN/PAEN control line is used for logic state control.
In the embodiment of the present application, the power consumption of the wearable device is reduced by reducing the power consumption of the power amplifier PA in the transmission channel TX and reducing the power consumption of the radio frequency front-end module 20, and the power amplifier PA in the transmission channel TX is described herein. In general, in order to obtain a sufficiently large amplification factor or in consideration of special requirements such as input resistance and output resistance, the power amplifier PA is composed of a multi-stage circuit, i.e. a multi-stage amplifier, and it can be understood that the power amplification module includes M power amplifiers. As shown in fig. 5, fig. 5 is an alternative schematic structural diagram of a power amplification module according to an embodiment of the present disclosure. That is, a structural block diagram of a multi-stage amplifier, and fig. 5 shows a three-stage power amplifier, in which an input stage is used to complete the connection with a signal source and amplify the signal; the intermediate stage is used for amplifying voltage and amplifying weak input voltage to enough voltage amplitude; the output stage is used for power amplification of signals to achieve power meeting the requirements of an output load and matching the requirements with the load.
In the embodiment of the present application, it is described that the wearable device is an AR glasses, the terminal is a mobile phone, and the wireless communication technology is WIFI, and since the use distance between the AR glasses and the mobile phone is usually a short distance (e.g., within 5 m), a long-distance (e.g., tens of meters) coverage distance is not required as in a mobile phone or a router product. Meanwhile, data communication between the AR glasses and the mobile phone is transmitted from the mobile phone to the AR glasses most of the time, namely the AR glasses are in a receiving state most of the time, requirements on transmission power and transmission signal quality are relatively low, and the gain and linearity indexes of the power amplifier PA can be properly sacrificed while the efficiency of the power amplifier PA is ensured.
In the embodiment of the present application, the operation mode of the power amplifier PA is set to single-stage amplification by controlling the output level value of the SEL/LNAEN/PAEN control line. Illustratively, when the output level values of PAEN, LNAEN, SEL3, and SEL4 are 1000, the power amplifier in the transmit channel is a 3-stage amplifier, and the current value corresponding to the transmit channel is 330 mA. When the output level values of PAEN, LNAEN, SEL3 and SEL4 are 1110, the power amplifier in the transmitting channel is a single-stage amplifier, and the current value corresponding to the transmitting channel is 60mA, so that the power consumption of the power amplifier is effectively reduced.
The embodiment of the application aims at the technical problem that power consumption is very high in the WIFI high-speed transmission process, the application scene of AR glasses is combined, through a software means, according to the output level value of a SEL/LNAEN/PAEN control line, the stage number of a power amplifier PA in a transmitting channel TX is controlled, the power amplifier PA in a radio frequency front-end module 20 is forcibly controlled to be changed from multi-stage amplification to single-stage amplification, and further the power consumption of an intermediate stage and an output stage is saved, so that the power consumption of the radio frequency front-end module 20 in the radiation power process is reduced to 20% of the original power consumption, and the power consumption of the AR glasses in the high-speed transmission process is greatly reduced while the transmission rate is ensured.
The embodiment of the present application provides a data transmission method, which can be applied to the radio frequency front end module 20 described in any of the above embodiments. As shown in fig. 6, fig. 6 is a flowchart of steps of a data transmission method provided in an embodiment of the present application, where the data transmission method includes the following steps:
s601, receiving a power control signal.
S602, controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers.
And S603, when the transmitting signal is received, amplifying the transmitting signal through the N power amplifiers in the working state to obtain an amplified transmitting signal.
And S604, transmitting the amplified transmission signal to a terminal.
The data transmission method provided by the embodiment of the application is applied to a radio frequency front end module of wearable equipment, and the power control signal is received; and controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal, wherein N is less than the total number of the power amplifiers of the power amplification module. When receiving the transmitting signal, the transmitting signal is amplified through the N power amplifiers in the working state, and the amplified transmitting signal is obtained. The amplified transmission signal is transmitted to a terminal for processing data at the terminal. Most of the time during which the wearable device and the terminal communicate with each other, data is transmitted from the terminal to the wearable device. Therefore, in the embodiment of the present application, the number of the power amplifiers in the working state is reduced by controlling the N power amplifiers in the power amplification module to be in the working state, instead of the whole power amplification module (i.e., M power amplifiers) being in the working state. On the premise of ensuring the efficiency of the power amplifier, the gain and linearity indexes of the power amplification module are properly reduced, and the power consumption of the radio frequency front-end module is reduced, so that the power consumption of the wearable equipment is reduced.
In some embodiments, the logic control interface in the rf front-end module includes a plurality of sub-interfaces, and the S602 may also be implemented by adjusting output level values of the plurality of sub-interfaces according to the power control signal to control the N power amplifiers of the power amplification module to be in an operating state; the output level values of the plurality of sub-interfaces control the working states of the M power amplifiers of the power amplification module.
In some embodiments, the foregoing S604 may also be implemented by allocating power of the amplified transmission signal to obtain a target transmission signal; and transmitting the target transmitting signal to the terminal.
In some embodiments, the data transmission method may further include the steps of: distributing the power of the amplified transmission signal to obtain the power of a coupling port; and generating a new power control signal according to the power of the coupled port, wherein the new power control signal is used for determining the number of the power amplifiers in the working state when the signal is transmitted to the terminal next time.
In some embodiments, the number of the radio frequency front end modules is multiple, and the radio frequency front end modules perform signal transmission with the terminal in different communication frequency bands; different communication frequency bands respectively correspond to different radio frequency front end modules.
It should be noted that the data transmission method provided in the embodiment of the present application may be executed by the wearable device described in any of the above embodiments, the wearable device provided in the above embodiments and the data transmission method embodiment belong to the same concept, and specific implementation processes and beneficial effects thereof are described in detail in the embodiment of the wearable device, and are not described herein again. For technical details which are not disclosed in the method embodiments of the present application, reference is made to the description of the embodiments of the apparatus of the present application for understanding.
In this embodiment of the application, fig. 7 is a schematic structural diagram of a wearable device proposed in this embodiment of the application, and as shown in fig. 7, a device 70 proposed in this embodiment of the application may further include the radio frequency front end module 20, the processor 701, and a memory 702 storing executable instructions of the processor 701, and in some embodiments, the wearable device 70 may further include a communication interface 703, and a bus 704 for connecting the processor 701, the memory 702, and the communication interface 703.
In the embodiment of the present invention, the Processor 701 may be at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a ProgRAMmable Logic Device (PLD), a Field ProgRAMmable Gate Array (FPGA), a Central Processing Unit (CPU), a controller, a microcontroller, and a microprocessor. It is understood that the electronic devices for implementing the above processor functions may be other devices, and the embodiments of the present application are not limited in particular.
In the embodiment of the present application, the bus 704 is used to connect the rf front-end module 20, the communication interface 703, the processor 701, and the memory 702, and to communicate with each other.
In this embodiment, the processor 701 may be applied to the rf front-end module 20, and receive a power control signal; controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers; when receiving a transmitting signal, amplifying the transmitting signal through N power amplifiers in a working state to obtain an amplified transmitting signal; and transmitting the amplified transmission signal to the terminal.
A memory 702 in the wearable device 70 may be coupled to the processor 701, the memory 702 being configured to store executable program code and data, the program code including computer operating instructions, and the memory 702 may comprise high speed RAM memory and may also include non-volatile memory, such as at least two disk memories. In practical applications, the Memory 702 may be a volatile Memory (volatile Memory), such as a Random-Access Memory (RAM); or a non-volatile Memory (non-volatile Memory), such as a Read-Only Memory (ROM), a flash Memory (flash Memory), a Hard Disk (Hard Disk Drive, HDD) or a Solid-State Drive (SSD); or a combination of the above types of memories and provides instructions and data to the processor 701.
In addition, each functional module in this embodiment may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware or a form of a software functional module.
Based on the understanding that the technical solution of the present embodiment essentially or a part contributing to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium, and include several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the present embodiment. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The embodiment of the present application provides a computer-readable storage medium, on which a program is stored, and the program, when executed by a processor, implements the data transmission method according to any one of the above embodiments.
For example, the program instructions corresponding to a data transmission method in this embodiment may be stored on a storage medium such as an optical disc, a hard disk, a U-disk, etc., and when the program instructions corresponding to a data transmission method in the storage medium are read or executed by an electronic device, the data transmission method in any of the above embodiments may be implemented.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of implementations of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart block or blocks and/or flowchart block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart block or blocks in the flowchart and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (12)
1. A radio frequency front end module, the radio frequency front end module comprising: the power amplifier comprises a logic control interface, a power amplification module and an antenna;
the logic control interface is used for receiving a power control signal and transmitting the power control signal to the power amplification module;
the power amplification module is used for controlling N power amplifiers of the power amplification module to be in a working state according to the power control signal, and amplifying the transmitting signal through the N power amplifiers to obtain an amplified transmitting signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers;
and the antenna is used for transmitting the amplified transmission signal to a terminal.
2. The rf front-end module of claim 1, further comprising: a power coupling circuit;
the power coupling circuit is respectively connected with the power amplification module and the antenna;
the power coupling circuit is used for distributing the power of the amplified transmission signal to obtain a target transmission signal and transmitting the target transmission signal to the antenna;
the antenna is used for transmitting the target transmitting signal to the terminal.
3. The RF front-end module of claim 2,
the power coupling circuit is also used for distributing the power of the amplified transmission signal to obtain the power of a coupling port; and generating a new power control signal according to the power of the coupled port, and sending the new power control signal to the logic control interface, wherein the new power control signal is used for determining the number of the power amplifiers in the working state when the signal is transmitted to the terminal next time.
4. The radio frequency front end module of any of claims 1-3, wherein the logic control interface comprises a plurality of sub-interfaces;
and the plurality of sub-interfaces are used for adjusting the output level values of the plurality of sub-interfaces according to the power control signal, wherein the output level values of the plurality of sub-interfaces control the working states of M power amplifiers of the power amplification module.
5. The RF front-end module of any one of claims 1-3, wherein the number of RF front-end modules is plural;
the antenna is used for carrying out signal transmission with the terminal in different communication frequency bands; and the different communication frequency bands respectively correspond to different radio frequency front end modules.
6. A data transmission method, wherein the radio frequency front end module according to any one of claims 1-5 is applied, the method comprising:
receiving a power control signal;
controlling N power amplifiers of a power amplification module to be in a working state according to the power control signal, wherein N is a positive integer smaller than M, and M is the total number of the power amplifiers;
when receiving a transmitting signal, amplifying the transmitting signal through the N power amplifiers in a working state to obtain an amplified transmitting signal;
and transmitting the amplified transmission signal to a terminal.
7. The method of claim 6, wherein transmitting the amplified transmission signal to a terminal comprises:
distributing the power of the amplified transmission signal to obtain a target transmission signal;
and transmitting the target transmitting signal to the terminal.
8. The method of claim 7, further comprising:
distributing the power of the amplified transmission signal to obtain the power of a coupling port;
and generating a new power control signal according to the power of the coupled port, wherein the new power control signal is used for determining the number of the power amplifiers in the working state when the signal is transmitted to the terminal next time.
9. The method according to any of claims 6-8, wherein the logic control interface in the rf front-end module comprises a plurality of sub-interfaces, and the controlling the N power amplifiers of the power amplification module to be in an operating state according to the power control signal comprises:
adjusting output level values of the plurality of sub-interfaces according to the power control signal to control N power amplifiers of the power amplification module to be in a working state; and the output level values of the plurality of sub-interfaces control the working states of M power amplifiers of the power amplification module.
10. The method according to any one of claims 6-8, wherein the number of the radio frequency front end modules is plural;
carrying out signal transmission with the terminal in different communication frequency bands; and the different communication frequency bands respectively correspond to different radio frequency front end modules.
11. A wearable device, characterized in that the wearable device comprises:
the radio frequency front end module, memory and processor of any one of claims 1-5;
the memory stores a computer program operable on the processor to perform the steps of the method of any one of claims 6 to 10 when the program is executed by the processor.
12. A computer-readable storage medium having stored thereon executable instructions for, when executed by a processor, implementing the method of any one of claims 6-10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111392600.3A CN114124118A (en) | 2021-11-23 | 2021-11-23 | Radio frequency front-end module, wearable device, data transmission method and storage medium |
| PCT/CN2022/119633 WO2023093232A1 (en) | 2021-11-23 | 2022-09-19 | Radio frequency front-end module, wearable device, data transmission method, and computer-readable storage medium |
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| CN202111392600.3A CN114124118A (en) | 2021-11-23 | 2021-11-23 | Radio frequency front-end module, wearable device, data transmission method and storage medium |
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| WO2023093232A1 (en) * | 2021-11-23 | 2023-06-01 | Oppo广东移动通信有限公司 | Radio frequency front-end module, wearable device, data transmission method, and computer-readable storage medium |
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| CN114124118A (en) * | 2021-11-23 | 2022-03-01 | Oppo广东移动通信有限公司 | Radio frequency front-end module, wearable device, data transmission method and storage medium |
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| US20020132652A1 (en) * | 2001-03-16 | 2002-09-19 | Steel Victor E. | Segmented power amplifier and method of control |
| US20090051461A1 (en) * | 2007-08-21 | 2009-02-26 | Azurewave Technologies, Inc. | Output power detecting system with a directional coupler |
| US20160276980A1 (en) * | 2015-03-18 | 2016-09-22 | Samsung Electro-Mechanics Co., Ltd. | Power amplifier and method of controlling output of power amplifier |
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Application publication date: 20220301 |