CN110891305A - Power control device and method and electronic equipment - Google Patents
Power control device and method and electronic equipment Download PDFInfo
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- CN110891305A CN110891305A CN201911265728.6A CN201911265728A CN110891305A CN 110891305 A CN110891305 A CN 110891305A CN 201911265728 A CN201911265728 A CN 201911265728A CN 110891305 A CN110891305 A CN 110891305A
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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
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
Abstract
The invention discloses a power control device, a method and an electronic device, wherein the power control device comprises: a signal receiving path; an uplink Sounding Reference Signal (SRS) transmitting path; the radio frequency transceiver is respectively connected with the SRS transmitting path and the signal receiving path; and the processor is connected with the radio frequency transceiver, acquires a difference value between a first loss of the signal receiving path and a second loss of the SRS transmitting path, and adjusts the transmitting power of the uplink sounding reference signal SRS in the SRS transmitting path according to the difference value. According to the embodiment of the invention, the processor adjusts the transmitting power of the SRS signal according to the difference value of the first loss on the signal receiving path and the second loss of the SRS transmitting path, so that the power of the SRS signal received by the base station can be better matched with the loss corresponding to the signal receiving path, and the downlink data rate is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power control apparatus and method, and an electronic device.
Background
In an electronic device, a radio frequency architecture supports the round transmission of an uplink Sounding Reference Signal (SRS), wherein a transmission path of the SRS Signal is: transmit filter-SRS switcher-switcher; the receiving path of the SRS signal is as follows: switch-coexisting device-receive filter. Different devices and interconnection wires among the devices form different signal paths, and different signal paths bring different path losses, so that channel characteristics (including characteristics of signal strength and phase) acquired by the base station according to the SRS transmitting signal and channel characteristics of a receiving channel of the electronic equipment have errors, and downlink data rate is influenced.
Disclosure of Invention
The invention provides a power control device, a power control method and electronic equipment, which are used for solving the problem that the power of an SRS (sounding reference signal) received by a base station is not matched with the receiving power of a receiving channel of the SRS.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a power control apparatus, including:
a signal receiving path;
an uplink Sounding Reference Signal (SRS) transmitting path;
the radio frequency transceiver is respectively connected with the SRS transmitting path and the signal receiving path;
and the processor is connected with the radio frequency transceiver, acquires a difference value between a first loss of the signal receiving path and a second loss of the SRS transmitting path, and adjusts the transmitting power of the uplink sounding reference signal SRS in the SRS transmitting path according to the difference value.
In a second aspect, an embodiment of the present invention further provides an electronic device, including the above power control apparatus.
In a third aspect, an embodiment of the present invention further provides a power control method, which is applied to the foregoing power control apparatus, and the method includes:
the method comprises the steps that a processor obtains a difference value of a first loss of a signal receiving path connected with a radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver;
and the processor adjusts the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
In a fourth aspect, an embodiment of the present invention further provides a processor, including:
the device comprises an acquisition module, a receiving module and a processing module, wherein the acquisition module is used for acquiring the difference value of a first loss of a signal receiving path connected with a radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver;
and the processing module is used for adjusting the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
In a fifth aspect, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored on the memory and executable on the processor, and when the computer program is executed by the processor, the steps of the power control method described above are implemented.
In a sixth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the power control method described above are implemented.
In the embodiment of the present invention, the processor adjusts the transmission power of the SRS signal according to a difference between the first loss in the signal receiving path and the second loss in the SRS transmission path, so that the SRS signal power received by the base station can better match the loss in the signal receiving path, thereby increasing the downlink data rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a power control apparatus according to an embodiment of the present invention;
FIG. 2 is a second schematic diagram of a power control apparatus according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a process of adjusting the transmission power of an SRS signal by the processor according to an embodiment of the invention;
fig. 4 is a third schematic structural diagram of a power control apparatus according to an embodiment of the invention;
FIG. 5 is a flow chart illustrating a power control method according to an embodiment of the invention;
FIG. 6 shows a block diagram of a processor of an embodiment of the invention;
fig. 7 is a schematic diagram showing a hardware configuration of an electronic device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a power control apparatus, including:
a signal receiving path 11;
an uplink Sounding Reference Signal (SRS) transmission path 12;
a radio frequency transceiver 13 connected to the SRS transmission path 12 and the signal reception path 11, respectively;
and a processor 14 connected to the radio frequency transceiver 13, where the processor 14 obtains a difference between a first loss of the signal receiving path 11 and a second loss of the SRS transmission path 12, and adjusts a transmission power of the uplink sounding reference signal SRS in the SRS transmission path 12 according to the difference.
In this embodiment, the power control apparatus may be applied to power control of an uplink sounding reference signal SRS. The processor 14 sends the SRS signal specified by the standard to a base station through the radio frequency transceiver 13 and the SRS transmission path 12, and after receiving the SRS signal, the base station demodulates the SRS signal to obtain uplink channel characteristics between each receiving antenna of the electronic device and the base station antenna, and obtains downlink channel characteristics by using Time Division Duplex (TDD) reciprocity between uplink and downlink, thereby adjusting a downlink receiving signal corresponding to each signal receiving path of the electronic device. The signal receiving paths 11 may be a plurality of, that is, Multiple Input Multiple Output (MIMO) technologies in which Multiple receiving and transmitting channels operate simultaneously, and the communication rate can be improved when the plurality of signal receiving paths 11 operate simultaneously.
In this embodiment, the processor first determines the transmission power of the SRS signal before transmitting the SRS signal to the base station. Since the signal paths of the signal receiving path 11 and the SRS transmission path 12 are different, the path losses are also different, and the processor adjusts the transmission power of the SRS signal according to the difference between the first loss of the signal receiving path 11 and the second loss of the SRS transmission path 12, so that the SRS signal power received by the base station can better match the loss of the corresponding signal receiving path, thereby improving the downlink data rate.
Further, as shown in fig. 2, the processor 14 includes: a baseband processor 141, and a modem 142 connected to the baseband processor 141;
the baseband processor 141 obtains a first loss of the signal receiving path 11 and a second loss of the SRS transmission path 12 through the modem 142, obtains a difference between the first loss and the second loss, and adjusts the transmission power of the SRS signal in the SRS transmission path 12 according to the difference.
When there are a plurality of signal receiving paths 11, the baseband processor 141 obtains the first loss of each of the plurality of signal receiving paths 11 through the modem 142. The first loss and the second loss of the SRS transmission path 12 may be obtained through an insertion loss test, and after the baseband processor 141 obtains the first loss and the second loss, a difference between the first loss and the second loss is calculated, that is, the baseband processor 141 obtains the first loss of the signal reception path 11 and the second loss of the SRS transmission path 12 through an insertion loss test; and obtaining a difference between the first loss and the second loss.
As shown in fig. 2, the signal receiving path 11 includes: a low noise amplifier LNA connected to the radio frequency transceiver 13; a reception filter 111 connected to the low noise amplifier LNA; a coexistence device 112 connected to the reception filter 111; a first switch 113 connected to the coexistence device 112; and a bidirectional coupler 114 connected to the first switch 113, wherein the bidirectional coupler 114 is connected to an antenna. It should be noted that, in the power control apparatus shown in fig. 2, the signal receiving path 11 includes N paths, that is, a first receiving path RX1, a second receiving path RX2 …, and an nth receiving path RXN, and each of the receiving paths includes the low noise amplifier LNA, the receiving filter 111, the coexistence device 112, the first switch 113, and the bidirectional coupler 114. Taking the signal receiving path as an RX1 path as an example, the first loss is: a sum of an insertion loss of the reception filter 111 in the RX1 path, an insertion loss of the coexistence device 112, an insertion loss of the RX1 path line, and an insertion loss of the first switch 113.
The SRS transmission path 12 includes: a power amplifier PA connected to the radio frequency transceiver 13; a transmit filter 121 connected to the power amplifier PA; a second switch 122 connected to the transmission filter 121; the second switch 122 is connected to the first switch 113. When the signal receiving path 11 includes a plurality of receiving paths, the second switch 122 is connected to the first switch 113 in each receiving path to form a first transmitting path SRS TX1 and a second transmitting path SRS TX2 … and an nth transmitting path SRS TXN. When the SRS transmission path 12 transmits an SRS signal, the second switch 122 is controlled to switch to the first switch 113, and the SRS signal is transmitted through the antenna connected to the bidirectional coupler 114. As shown in fig. 2, the second loss is: a sum of an insertion loss of the transmission filter 121 in the SRS transmission path 12, an insertion loss of the second switch 122, an insertion loss of the SRS transmission path 12, and an insertion loss of the first switch 113.
When the baseband processor 141 acquires the first loss and the second loss through an insertion loss test, the test range of the first loss is from a point a1 to a point b1 shown in fig. 2; the second loss was tested in the range of a2 to b1 shown in fig. 2. The baseband processor 141 obtains the values of the first loss and the second loss, and then calculates a difference value. Wherein the first difference is: a difference of a first loss at the RX1 and a second loss at the SRS TX 1; the second difference is: a difference of a first loss at the RX2 and a second loss at the SRS TX 2; the Nth difference is: a difference of a first loss on the RXN and a second loss on the SRS TXN. And after the difference value is obtained, storing the difference value data into a memory of the electronic equipment for calling in SRS power control.
Optionally, when the baseband processor 141 adjusts the transmission power of the uplink sounding reference signal SRS in the SRS transmission path according to the difference, the baseband processor 141 obtains a power control instruction of the SRS signal, where the power control instruction includes a target transmission power of the SRS signal; and determining the transmitting power of the SRS signal according to the difference value on the basis of the target transmitting power.
The power control instruction is issued by the base station, and after receiving the power control instruction, a processor of the electronic device demodulates the power control instruction, so that the transmitting power of the SRS signal expected by the base station, namely the target transmitting power, can be obtained; and the baseband processor adjusts the target transmission power contained in the power control instruction according to the difference value of the first loss and the second loss.
Specifically, when the baseband processor determines the transmission power of the SRS signal according to the difference on the basis of the target transmission power, and when the difference is greater than zero, the transmission power of the SRS signal is the difference between the target transmission power and the difference; otherwise, the transmitting power of the SRS signal is the target transmitting power. Wherein, the difference is greater than zero, that is, the first loss of the signal receiving path is greater than the second loss of the SRS transmitting path, and the SRS transmitting power is equal to: subtracting the difference value from the target transmitting power, and increasing the downlink transmitting power by the base station in a mode of reducing the uplink SRS transmitting power so as to correct the signal power received by the electronic equipment; when the difference is smaller than zero, that is, the first insertion loss of the signal receiving path is smaller than the second loss of the SRS transmission path, at this time, the SRS signal is transmitted according to the target transmission power, that is, the received demodulation signal-to-noise ratio can be satisfied, and the SRS transmission power is not adjusted.
Optionally, after the baseband processor determines the transmission power of the SRS signal in the SRS transmission path, the baseband processor obtains the output power of a power amplifier in the SRS transmission path; and when the output power is equal to the transmission power of the SRS signal, controlling the SRS transmission path to output the SRS signal. In this embodiment, after determining the transmission power of the SRS signal, the baseband processor controls a power amplifier in the SRS transmission path to output according to the transmission power, acquires the output power of the power amplifier through a bidirectional coupler, and controls the SRS transmission path to output the SRS signal if the output power is equal to the transmission power of the determined SRS signal.
A specific procedure of adjusting, by the processor, the transmission power of the SRS signal in the SRS transmission path according to the difference between the first loss and the second loss is described below with reference to the drawings and by using a specific embodiment. As shown in fig. 3, the base station issues a power control instruction of the SRS signal; the processor receives and demodulates the power control instruction to obtain target transmitting power; calling difference value data of the first loss and the second loss from a memory of the electronic equipment; judging whether the difference is greater than zero, if so, determining that the transmitting power of the SRS signal is the target transmitting power-the difference; otherwise, the transmitting power of the SRS signal is the target transmitting power; adjusting the output power of a power amplifier according to the transmitting power of the SRS signal; comparing the output power of the power amplifier acquired by the bidirectional coupler with the transmitting power of the SRS signal, and judging whether the output power is equal to the transmitting power of the SRS signal; and if so, outputting the SRS signal, otherwise, returning to the step of adjusting the output power of the power amplifier according to the transmitting power of the SRS signal.
As shown in fig. 4, taking an example of one-path reception RX1 of downlink 4 × 4MIMO in Non-independent Networking (NSA) architecture, it is assumed that a difference between a first loss of RX1 and a second loss of SRS TX1 is 3dB, that is, the first loss of RX1 is 3dB greater than the second loss of SRSTX 1.
Under the condition that the transmission power of the SRS signal in the SRS transmission path is not adjusted, the processor 14 of the electronic device performs power control according to the transmission power (i.e. the target transmission power) desired by the base station 15, where the target transmission power is 15dBm, and after the base station receives and demodulates the SRS signal, it determines that the spatial path loss is 80dB, and it is required to satisfy the requirements defined by 3GPP TS 38.101-4: if the received snr of 4 × 4MIMO is greater than the requirement of 15.6dB, the power delivered by the base station 15 should be 20dBm, and at this time, the power that the base station 15 expects the electronic device to receive is 20-80 to-60 dBm, and the snr of the electronic device is exactly 16 dB; since the first loss of the RX1 is 3dB greater than the second loss of the SRS transmit path, the power actually received by the electronic device is 20-80-3-63 dBm, the corresponding signal-to-noise ratio is 13dB, and is less than the 4 × 4MIMO operation threshold, that is, less than 15.6dB, so that the electronic device cannot operate in the 4 × 4MIMO state, and will fall back to 2 × 2MIMO, and the data rate is reduced by half.
If the processor 14 adjusts the transmission power of the SRS signal in the SRS transmission path 12 based on the difference between the first loss and the second loss, the processor 14 of the electronic device performs power control according to the transmission power desired by the base station 15 (i.e. the target transmission power) and the difference, and since the difference is 3dB > 0, the transmission power is the target transmission power — the difference is 15dBm — 3dB is 12 dB. After demodulating the SRS signal, the base station 15 determines that the spatial path loss is 80+3 to 83dB, and the spatial path loss satisfies the following requirements defined by 3GPP TS 38.101-4: 4, the received snr of 4 × 4MIMO is greater than the requirement of 15.6dB, then the power issued by the base station is: when the base station 15 expects the electronic device to receive power of 23-83-60 dBm and the signal-to-noise ratio of the electronic device is just 16dB, the electronic device can operate in 4 × 4MIMO state, and the data rate is doubled compared with the case of unadjusted SRS signal transmission power.
In the embodiment of the present invention, the processor adjusts the transmission power of the SRS signal according to the difference between the first loss in the signal receiving path and the second loss in the SRS transmission path, so that the SRS signal power received by the base station can better match the loss in the signal receiving path, thereby increasing the downlink data rate.
An embodiment of the present invention further provides an electronic device, including the above power control apparatus.
As shown in fig. 5, an embodiment of the present invention further provides a power control method, which is applied to the above power control apparatus, and the method includes:
the processor sends the SRS signals specified by the standard to a base station through the radio frequency transceiver and the SRS transmitting path, and after the base station receives the SRS signals, the base station demodulates the SRS signals to obtain uplink channel characteristics between each receiving antenna of the electronic equipment and the base station antenna, further obtain downlink channel characteristics, and adjust downlink receiving signals corresponding to each path of signal receiving path of the electronic equipment. The signal receiving paths may be Multiple, that is, Multiple Input Multiple Output (MIMO) technologies in which Multiple receiving and transmitting channels operate simultaneously, and the Multiple signal receiving paths operate simultaneously to improve a communication rate.
Optionally, the processor may obtain a difference between a first loss of a signal receiving path connected to the radio frequency transceiver and a second loss of an SRS transmitting path connected to the radio frequency transceiver through an insertion loss test.
Step 502, the processor adjusts the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
Because the signal paths of the signal receiving path and the SRS transmitting path are different, the path losses are different, and the processor adjusts the transmitting power of the SRS signal according to the difference value of the first loss on the signal receiving path and the second loss on the SRS transmitting path, so that the SRS signal power received by the base station can be better matched with the loss corresponding to the signal receiving path, and the downlink data rate is improved.
Optionally, the step 502 includes:
and acquiring a power control instruction of the SRS signal, wherein the power control instruction comprises the target transmission power of the SRS signal. The power control instruction is issued by the base station, and after receiving the power control instruction, the processor of the electronic device demodulates the power control instruction, so as to obtain the transmitting power of the SRS signal expected by the base station, that is, the target transmitting power.
And determining the transmitting power of the SRS signal according to the difference value on the basis of the target transmitting power.
And the baseband processor adjusts the target transmission power contained in the power control instruction according to the difference value of the first loss and the second loss. Specifically, when the difference is greater than zero, the transmission power of the SRS signal is the difference between the target transmission power and the difference; otherwise, the transmitting power of the SRS signal is the target transmitting power.
Wherein, the difference is greater than zero, that is, the first loss of the signal receiving path is greater than the second loss of the SRS transmitting path, and the SRS transmitting power is equal to: subtracting the difference value from the target transmitting power, and increasing the downlink transmitting power by the base station in a mode of reducing the uplink SRS transmitting power so as to correct the signal power received by the electronic equipment; when the difference is smaller than zero, that is, the first insertion loss of the signal receiving path is smaller than the second loss of the SRS transmission path, at this time, the SRS signal is transmitted according to the target transmission power, that is, the received demodulation signal-to-noise ratio can be satisfied, and the SRS transmission power is not adjusted.
Optionally, the method further comprises:
acquiring the output power of a power amplifier on the SRS transmitting path; and when the output power is equal to the transmission power of the SRS signal, controlling the SRS transmission path to output the SRS signal.
In this embodiment, after determining the transmission power of the SRS signal, the processor controls a power amplifier in the SRS transmission path to output according to the transmission power, acquires the output power of the power amplifier through a bidirectional coupler, and controls the SRS transmission path to output the SRS signal if the output power is equal to the transmission power of the determined SRS signal.
In the embodiment of the present invention, the processor adjusts the transmission power of the SRS signal according to the difference between the first loss in the signal receiving path and the second loss in the SRS transmission path, so that the SRS signal power received by the base station can better match the loss in the signal receiving path, thereby increasing the downlink data rate.
As shown in fig. 6, an embodiment of the present invention further provides a processor 600, including:
an obtaining module 601, configured to obtain a difference between a first loss of a signal receiving path connected to a radio frequency transceiver and a second loss of an SRS transmitting path connected to the radio frequency transceiver;
a processing module 602, configured to adjust a transmission power of an SRS signal in the SRS transmission path according to the difference.
Optionally, the obtaining module 601 is specifically configured to: and acquiring a difference value of a first loss of a signal receiving path connected with the radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver through an insertion loss test.
Optionally, the processing module 602 includes:
a first obtaining unit, configured to obtain a power control instruction of the SRS signal, where the power control instruction includes a target transmission power of the SRS signal;
and the determining unit is used for determining the transmitting power of the SRS signal according to the difference on the basis of the target transmitting power.
Optionally, the determining unit is specifically configured to: when the difference value is larger than zero, the transmitting power of the SRS signal is the difference between the target transmitting power and the difference value; otherwise, the transmitting power of the SRS signal is the target transmitting power.
Optionally, the processor 600 further includes:
a second obtaining unit, configured to obtain output power of a power amplifier on the SRS transmission path;
and the control unit is used for controlling the SRS transmitting path to output the SRS signal when the output power is equal to the transmitting power of the SRS signal.
The processor provided in the embodiment of the present invention can implement each process implemented by the processor in the method embodiment of fig. 5, and is not described here again to avoid repetition.
In the embodiment of the present invention, the processor adjusts the transmission power of the SRS signal according to the difference between the first loss in the signal receiving path and the second loss in the SRS transmission path, so that the SRS signal power received by the base station can better match the loss in the signal receiving path, thereby increasing the downlink data rate.
Fig. 7 is a schematic diagram of a hardware structure of an electronic device implementing various embodiments of the present invention.
The electronic device 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 7 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 710 is configured to obtain a difference between a first loss of a signal receiving path connected to a radio frequency transceiver and a second loss of an SRS transmitting path connected to the radio frequency transceiver;
and adjusting the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
The processor adjusts the transmitting power of the SRS signal according to the difference value of the first loss on the signal receiving path and the second loss of the SRS transmitting path, so that the power of the SRS signal received by the base station can be better matched with the loss corresponding to the signal receiving path, and the downlink data rate is improved.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 702, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the electronic apparatus 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The electronic device 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the electronic device 700 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the electronic device, which is not limited herein.
The interface unit 708 is an interface for connecting an external device to the electronic apparatus 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 700 or may be used to transmit data between the electronic apparatus 700 and the external device.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby monitoring the whole electronic device. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The electronic device 700 may also include a power supply 711 (e.g., a battery) for providing power to the various components, and preferably, the power supply 711 may be logically coupled to the processor 710 via a power management system, such that functions of managing charging, discharging, and power consumption may be performed via the power management system.
In addition, the electronic device 700 includes some functional modules that are not shown, and are not described in detail herein.
Preferably, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the foregoing power control method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the foregoing power control method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
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 an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling an electronic device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. A power control apparatus, comprising:
a signal receiving path;
an uplink Sounding Reference Signal (SRS) transmitting path;
the radio frequency transceiver is respectively connected with the SRS transmitting path and the signal receiving path;
and the processor is connected with the radio frequency transceiver, acquires a difference value between a first loss of the signal receiving path and a second loss of the SRS transmitting path, and adjusts the transmitting power of the uplink sounding reference signal SRS in the SRS transmitting path according to the difference value.
2. The power control apparatus of claim 1, wherein the processor comprises: the system comprises a baseband processor and a modem connected with the baseband processor;
and the baseband processor acquires a first loss of the signal receiving path and a second loss of the SRS transmitting path through the modem, acquires a difference value between the first loss and the second loss, and adjusts the transmitting power of the SRS signal in the SRS transmitting path according to the difference value.
3. The power control apparatus of claim 1, wherein the signal reception path comprises:
a low noise amplifier connected to the radio frequency transceiver;
a receive filter connected to the low noise amplifier;
a coexistence device connected with the receive filter;
a first changeover switch connected to the coexistence device;
and the bidirectional coupler is connected with the first selector switch and is connected with an antenna.
4. The power control apparatus of claim 3, wherein the SRS transmission path comprises:
a power amplifier connected to the radio frequency transceiver;
a transmit filter coupled to the power amplifier;
a second switch connected to the transmission filter;
the second change-over switch is connected with the first change-over switch.
5. The power control apparatus of claim 2, wherein the baseband processor obtains a first loss of the signal receiving path and a second loss of the SRS transmitting path through an insertion loss test; and obtaining a difference between the first loss and the second loss.
6. The power control apparatus of claim 2, wherein the baseband processor obtains a power control instruction of the SRS signal, and the power control instruction comprises a target transmission power of the SRS signal;
and determining the transmitting power of the SRS signal according to the difference value on the basis of the target transmitting power.
7. The power control apparatus of claim 6, wherein the determining the transmission power of the SRS signal according to the difference value based on the target transmission power comprises:
when the difference value is larger than zero, the transmitting power of the SRS signal is the difference between the target transmitting power and the difference value; otherwise, the transmitting power of the SRS signal is the target transmitting power.
8. The power control apparatus of claim 2, wherein the baseband processor obtains an output power of a power amplifier on the SRS transmission path; and when the output power is equal to the transmission power of the SRS signal, controlling the SRS transmission path to output the SRS signal.
9. An electronic device, characterized in that it comprises a power control apparatus according to any one of claims 1 to 8.
10. A power control method applied to the power control apparatus according to any one of claims 1 to 8, the method comprising:
the method comprises the steps that a processor obtains a difference value of a first loss of a signal receiving path connected with a radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver;
and the processor adjusts the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
11. The method of claim 10, wherein obtaining a difference between a first loss of a signal receiving path connected to a radio frequency transceiver and a second loss of an SRS transmission path connected to the radio frequency transceiver comprises:
and acquiring a difference value of a first loss of a signal receiving path connected with the radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver through an insertion loss test.
12. The power control method of claim 10, wherein adjusting the transmission power of the SRS signal in the SRS transmission path according to the difference comprises:
acquiring a power control instruction of the SRS signal, wherein the power control instruction comprises a target transmitting power of the SRS signal;
and determining the transmitting power of the SRS signal according to the difference value on the basis of the target transmitting power.
13. The power control method of claim 12, wherein the determining the transmission power of the SRS signal according to the difference based on the target transmission power comprises:
when the difference value is larger than zero, the transmitting power of the SRS signal is the difference between the target transmitting power and the difference value; otherwise, the transmitting power of the SRS signal is the target transmitting power.
14. The power control method of claim 10, further comprising:
acquiring the output power of a power amplifier on the SRS transmitting path;
and when the output power is equal to the transmission power of the SRS signal, controlling the SRS transmission path to output the SRS signal.
15. A processor, comprising:
the device comprises an acquisition module, a receiving module and a processing module, wherein the acquisition module is used for acquiring the difference value of a first loss of a signal receiving path connected with a radio frequency transceiver and a second loss of an SRS transmitting path connected with the radio frequency transceiver;
and the processing module is used for adjusting the transmitting power of the SRS signal in the SRS transmitting path according to the difference.
16. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the power control method according to any one of claims 10 to 14.
17. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the power control method according to any one of claims 10 to 14.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911265728.6A CN110891305B (en) | 2019-12-11 | 2019-12-11 | Power control device and method and electronic equipment |
| PCT/CN2020/134477 WO2021115250A1 (en) | 2019-12-11 | 2020-12-08 | Power control apparatus and method, and electronic device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911265728.6A CN110891305B (en) | 2019-12-11 | 2019-12-11 | Power control device and method and electronic equipment |
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| CN110891305A true CN110891305A (en) | 2020-03-17 |
| CN110891305B CN110891305B (en) | 2022-04-19 |
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| CN201911265728.6A Active CN110891305B (en) | 2019-12-11 | 2019-12-11 | Power control device and method and electronic equipment |
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| CN111682885A (en) * | 2020-06-09 | 2020-09-18 | 芯朴科技(上海)有限公司 | 1T2R radio frequency circuit and wireless communication equipment |
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| CN113115333A (en) * | 2021-03-29 | 2021-07-13 | 维沃移动通信有限公司 | Uplink parameter control method, uplink parameter control device and electronic equipment |
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| CN113691273A (en) * | 2021-08-05 | 2021-11-23 | 维沃移动通信有限公司 | Radio frequency control method and device and electronic equipment |
| CN114143660A (en) * | 2022-01-06 | 2022-03-04 | 维沃移动通信有限公司 | Wireless earphone control method and device and electronic equipment |
| WO2023016084A1 (en) * | 2021-08-10 | 2023-02-16 | 上海闻泰信息技术有限公司 | Channel quality measurement terminal and electronic device |
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Also Published As
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| WO2021115250A1 (en) | 2021-06-17 |
| CN110891305B (en) | 2022-04-19 |
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