CN111708056A - Signal processing method, signal processing device and electronic equipment - Google Patents

Signal processing method, signal processing device and electronic equipment Download PDF

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Publication number
CN111708056A
CN111708056A CN202010582073.1A CN202010582073A CN111708056A CN 111708056 A CN111708056 A CN 111708056A CN 202010582073 A CN202010582073 A CN 202010582073A CN 111708056 A CN111708056 A CN 111708056A
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gnss
antenna
power
frequency band
signal
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CN202010582073.1A
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CN111708056B (en
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杨杰
黄辉
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/21—Interference related issues ; Issues related to cross-correlation, spoofing or other methods of denial of service
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • G01S19/37—Hardware or software details of the signal processing chain

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a signal processing method, a processing device and an electronic device, which belong to the field of wireless communication, wherein the method comprises the following steps: if the antenna of the first frequency band and the GNSS antenna are detected to be in a working state at the same time, acquiring first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna; if the first power is smaller than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal; if the first power is larger than the preset threshold value, the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band are discarded, and the rest GNSS signals are processed.

Description

Signal processing method, signal processing device and electronic equipment
Technical Field
The present application relates to the field of wireless communication technologies, and in particular, to a signal processing method, a signal processing apparatus, and an electronic device.
Background
A GNSS (Global Navigation Satellite System) refers to a System configured to provide position information of a terrestrial object by using satellites orbiting the earth, and may include a plurality of GNSS satellites and at least one GNSS antenna. Nowadays, many products, such as mobile phones, tablet computers, etc., are equipped with positioning functions through built-in GNSS antennas. However, in GNSS applications, when positioning is performed, in general, when a GNSS antenna and an antenna in another frequency band, such as an LTE (Long Term Evolution) network signal, are in a common working state, signals in the other frequency band may generate interference signals, which affects performance of the GNSS.
Disclosure of Invention
The application provides a signal processing method, a signal processing device and electronic equipment, which are used for solving the problems that GNSS signals are interfered by signals of other frequency bands, so that GNSS performance is influenced and the like.
In order to achieve the purpose, the following scheme is adopted in the application:
in a first aspect, an embodiment of the present application provides a signal processing method, including:
if the antenna of the first frequency band and the GNSS antenna are detected to be in a working state at the same time, acquiring first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
if the first power is smaller than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal;
and if the first power is larger than a preset threshold value, discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
In a second aspect, an embodiment of the present application provides a radio frequency circuit of a GNSS, including:
the device comprises a GNSS radio frequency circuit, a GNSS antenna, a first frequency band radio frequency circuit, a first frequency band antenna, a feedback device, a power detection device and a controller;
the GNSS radio frequency circuit is connected with the GNSS antenna through a first passage;
the first frequency band radio frequency circuit is connected with the antenna of the first frequency band through a second passage;
the feedback device is respectively connected with the first path and the power detection device;
the power detection device comprises a first receiving pin, and the first receiving pin is connected with the feedback device and used for determining first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
the controller is connected with the power detection device and the GNSS radio frequency circuit and is used for controlling the GNSS radio frequency circuit to process the GNSS signals received by the GNSS antenna as effective GNSS signals if the first power is less than or equal to a preset threshold value; and if the first power is larger than a preset threshold value, controlling the GNSS radio frequency circuit to discard the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
In a third aspect, an embodiment of the present application provides an electronic device, including: the radio frequency circuit of a GNSS as provided in the second aspect of the present application.
In a fourth aspect, an embodiment of the present application provides a processing apparatus of a GNSS, including:
the GNSS antenna comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring first power of a signal transmitted by the antenna of a first frequency band on the GNSS antenna if the antenna of the first frequency band and the GNSS antenna are detected to be in a working state at the same time;
the first processing module is used for processing the GNSS signal received by the GNSS antenna as an effective GNSS signal if the first power is less than or equal to a preset threshold;
and the second processing module is used for discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band and processing the rest GNSS signals if the first power is greater than a preset threshold.
In a fifth aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the steps of the signal processing method provided in the embodiment of the present application.
In a sixth aspect, the present application provides a readable storage medium, on which a program or instructions are stored, and when the program or instructions are executed by a processor, the program or instructions implement the steps of the signal processing method provided by the present application.
In a seventh aspect, an embodiment of the present application provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the method according to the first aspect.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
when the antenna of the first frequency band and the GNSS antenna are in a working state at the same time, acquiring first power of a signal emitted by the antenna of the first frequency band on the GNSS antenna, and if the first power is less than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal; if the first power is larger than the preset threshold value, discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
Drawings
Fig. 1 is a flowchart of a signal processing method according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a radio frequency circuit of a GNSS according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a radio frequency circuit of a GNSS according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a radio frequency circuit of a GNSS according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a GNSS processing apparatus according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a processing device of a GNSS according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 8 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present application.
Description of the drawings:
21GPS radio frequency circuit; 211 a GPS antenna; 212a feedback device; 213 a filter; 214 a low noise amplifier; 215GPS chip;
212a single pole double throw switch; 212a1 first moving end; 212a2 second moving end; 212a3 dead end;
212b a directional coupler; 212b1 main line; 212b2 subline; 212b3 coupled ports;
22 a first band radio frequency circuit; 221 an antenna of a first frequency band; 222 a multimode power amplifier; 223 a power detection device;
2221 a coupler; 2222 output pin; 2223 frequency band transceiving line; 2224 an intermediate frequency power amplifier; 2225 a high frequency power amplifier;
2231 a first receive pin; 2232 a second receive pin; 2233 high frequency pins; 2234 intermediate frequency pin.
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, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. 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 application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The signal processing method, the processing apparatus and the electronic device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
The signal processing method can be used for the mobile terminal, and the positioning performance of the GNSS can be improved when the communication frequency band and the GNSS frequency band are used together.
Referring to fig. 1, fig. 1 is a schematic flow chart of a signal processing method provided in an embodiment of the present application;
step 101, if it is detected that the antenna of the first frequency band and the GNSS antenna are simultaneously in a working state, acquiring a first power of a signal emitted by the antenna of the first frequency band on the GNSS antenna;
in step 101, the first frequency band may be, for example, an LTE network frequency band, or other communication network frequency bands; the first frequency band antenna is used for sending and receiving signals of the first frequency band, and the GNSS antenna is used for receiving signals of the GNSS;
it should be noted that when the antenna of the first frequency band transmits signals, the first frequency band signal Tx (transmission) noise is received by the GNSS antenna (e.g., antenna), which causes a reduction in the GNSS CN0 value (carrier-to-noise ratio), so when the GNSS antenna and the first frequency band antenna operate simultaneously, the GNSS signals are easily interfered by signals of other frequency bands, which leads to a phenomenon of inaccurate GNSS positioning or satellite loss, which seriously affects user experience.
For example, the first frequency Band may be a certain frequency Band in an LTE (Long Term Evolution) network, such as a B39(B, Band frequency Band) frequency Band.
An exemplary GNSS (Global Navigation Satellite System) antenna may be used to receive GPS (Global Positioning System) signals.
Step 102, if the first power is less than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal;
in step 102, when the first power is less than or equal to the preset threshold value during signal transmission of the antenna in the first frequency band, the interference of the first frequency band signal on the GNSS signal is too small to affect the GNSS signal reception, and at this time, the GNSS signal received by the GNSS antenna can be processed as an effective GNSS signal;
step 103, if the first power is greater than the preset threshold, discarding the GNSS signals received by the GNSS antenna in the transmission time slot of the antenna of the first frequency band, and processing the remaining GNSS signals.
When the first power is greater than the preset threshold, the GNSS signals received by the GNSS antenna in the transmission time slot of the antenna in the first frequency band may interfere with the reception of the GNSS signals, and therefore, the GNSS signals received by the GNSS antenna in the transmission time slot of the antenna in the first frequency band when the first power is greater than the preset threshold need to be discarded.
In an actual communication scenario, the power of a communication signal transmitted by an antenna of a first frequency band carried by a mobile terminal is dynamically changed along with the deployment of a base station, and the isolation between a GNSS antenna (such as a GPS antenna) of the mobile terminal and an antenna of the first frequency band of the terminal (such as an LTE antenna) is also changed (such as different handheld modes); when the transmitting power of the antenna of the first frequency band is smaller than a certain value or the isolation between the GNSS antenna and the antenna of the first frequency band is larger than a certain value, noise caused by the signal transmitted by the antenna of the first frequency band falls below bottom noise, and at this time, the first frequency band Tx signal does not interfere with GNSS signal reception; if in this case, the GNSS signals received are directly masked or discarded by using, for example, a BLANKING algorithm, etc., the GNSS signals may be lost too much, and the GNSS positioning performance may be degraded.
According to the signal processing method provided by the embodiment of the application, if the antenna of the first frequency band and the GNSS antenna are detected to be in the working state at the same time, the first power of the signal emitted by the antenna of the first frequency band on the GNSS antenna is obtained; judging the GNSS signal of the antenna emission time slot of the first frequency band according to a preset threshold, wherein when the first power is less than or equal to the preset threshold, the first frequency band Tx signal does not interfere with the GNSS signal reception, and the GNSS signal received by the GNSS antenna is treated as an effective GNSS signal; when the first power is greater than a preset threshold value, the first frequency band Tx signal can generate interference on the GNSS signal, the GNSS signal received by the GNSS antenna in the transmitting time slot of the first frequency band antenna is discarded, and the rest GNSS signals are processed; by the signal processing method, when the GNSS antenna and the antenna of the first frequency band are used together, too many GNSS signals are not lost, the GNSS positioning performance is improved, and the problem that the GNSS performance is influenced due to the fact that the GNSS signals are interfered by signals of other frequency bands is solved.
Optionally, the preset threshold may be set according to actual needs.
Optionally, the obtaining a first power of a signal transmitted by an antenna of a first frequency band on the GNSS antenna includes:
in a time slot idle period of the GNSS antenna, first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna is acquired.
The first power is obtained in the time slot idle period of the GNSS antenna, so that the detection of the first power can be kept, the strategy of the received GNSS signal can be adjusted in time according to the change of the first power, and the GNSS signal is discarded or treated as an effective signal;
and the first power is acquired in the time slot idle period of the GNSS antenna, and the influence on the work of the GNSS antenna is reduced as much as possible or even not caused when the first power is acquired.
Optionally, in the slot idle period of the GNSS antenna, acquiring the first power, on the GNSS antenna, of the signal transmitted by the antenna in the first frequency band includes:
according to a preset period, in a time slot idle period of the GNSS antenna, acquiring first power of a signal emitted by the antenna of the first frequency band on the GNSS antenna.
For example, the preset period is to acquire the first power of the signal transmitted by the antenna of the first frequency band on the GNSS antenna every 0.5 seconds;
the first power is obtained through the preset period, the detection of the first power can be kept, and the response to the change of the first power can be timely made, such as T0～TnThe first power in the time period is less than or equal to a preset threshold value, and all GNSS signals received by the GNSS antennas in the time periods from T0 to Tn are processedProcessing the effective signals; when T isn+1If the first power acquired in the time period is greater than a preset threshold value, the slave Tn+1Discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band at the beginning of the moment; if Tn+mThe first power obtained at the moment is less than or equal to a preset threshold value, and T isn+mStarting from the moment, all the GNSS signals received by the GNSS antenna are processed again as valid signals.
Referring to fig. 2, an embodiment of the present invention further provides a radio frequency circuit of a GNSS, where the GNSS in fig. 2 takes a GPS as an example, the radio frequency circuit includes:
the GNSS receiver comprises a GNSS radio frequency circuit 21, a GNSS antenna 211, a first frequency band radio frequency circuit 22, a first frequency band antenna 221, a feedback device 212, and a power detection device 223;
the GNSS radio frequency circuit 21 is connected with the GNSS antenna 221 through a first path;
the first frequency band radio frequency circuit 22 is connected with the antenna 221 of the first frequency band through a second path;
a feedback device 212 connected to the first path and the power detection device 223, respectively;
a power detection device 223, including a first receiving pin 2231, where the first receiving pin 2231 is connected to the feedback device 212, and is configured to determine a first power of a signal transmitted by the antenna 221 in the first frequency band at the GNSS antenna 211;
the controller is connected with the power detection device and the GNSS radio frequency circuit and is used for controlling the GNSS radio frequency circuit to process the GNSS signals received by the GNSS antenna as effective GNSS signals if the first power is less than or equal to a preset threshold value; and if the first power is larger than a preset threshold value, controlling the GNSS radio frequency circuit to discard the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
The feedback device 212 can couple the signal transmitted by the antenna 221 in the first frequency band to the Tx power at the GNSS antenna 211 to feed back to the power detection device 223, and the power detection device 223 can determine the first power at the GNSS antenna 211 of the signal transmitted by the antenna 221 in the first frequency band by the power fed back by the feedback device 212; by combining the first power with step 102 and step 103 of the signal processing method provided by the embodiment of the present application, a decision can be made on the selection of the GNSS signal received by the GNSS antenna (no GNSS signal selection strategy is described herein again), so as to improve the positioning performance of the GNSS.
Optionally, the power detecting device 223 is further configured to determine, according to the power mapping table and the second power detected from the first receiving pin 2231, a first power of the signal transmitted by the antenna 221 in the first frequency band at the GNSS antenna 211; the power mapping relation table comprises a plurality of groups of mapping relations of the first power and the second power.
The feedback device 212 is connected to the first receiving pin 2231 of the power detection device 223, the first receiving pin 2231 is used to receive power fed back from the feedback device 212, the power of the circuit detected by the first receiving pin 2231 is used as a second power, because there is a certain error between the second power detected by the first receiving pin 2231 and the real power of the first frequency band transmission signal at the GNSS antenna 211, that is, the first power, the second power cannot be directly used as the first power of the signal transmitted by the antenna 221 at the first frequency band at the GNSS antenna 211, and when the power detection device 223 determines the first power, the first power corresponding to the currently detected second power needs to be determined through a preset power mapping relation table between the first power and the second power, so as to determine the power at this time when the first frequency band transmission signal is coupled to the GNSS antenna 211, that is the first power.
Optionally, referring to fig. 2, the power detection device 223 further includes a second receiving pin 2232, the first band rf circuit 22 includes a coupler 2221,
the coupler 2221 is connected with the second receiving pin 2232 and the second path;
the power detecting device 223 is further configured to obtain the transmission power of the antenna 221 in the first frequency band and the feedback power detected from the second receiving pin 2232, use the transmission power as the first power, use the feedback power as the second power, and generate a power mapping table.
The second receiving pin 2232 of the power detecting device 223 and the first receiving pin 2231 have the same structure, and both of them have the functions of receiving feedback power and detecting circuit power, and feed back part of the power of the antenna 221 in the first frequency band to the power detecting device 223 through the coupler 2221, so as to establish a mapping relation table between the transmission power in the first frequency band and the circuit value detected by the power detecting device 223, that is, a mapping relation table between the first power and the second power;
illustratively, when the first frequency band transmit power is 23dbm, the circuit power mapped to the power detection device 223 is-20 dbm;
specifically, a power mapping relation table of the first power and the second power is generated by using the signal transmission power of the antenna 221 and the circuit power detected by the second receiving pin 2232 in different first frequency bands;
it is worth noting that according to the difference of the structure and the parameters of the electronic component in the first path, the parameters of the mapping relation table need to be adjusted accordingly, so as to ensure that the mapping relation between the first power and the second power can enable the terminal to obtain the correct first power;
in this way, when the first power is determined, the first receiving pin 2231 detects the circuit power to obtain the second power, the CPU searches the power mapping table according to the second power to calculate the first power, and the decision on the selection of the GNSS signal can be made by comparing the obtained first power with the preset threshold.
Referring to fig. 3, the feedback device 212 includes:
the single-pole double-throw switch 212a comprises a fixed end 212a3, a first movable end 212a1 and a second movable end 212a2, wherein the fixed end 212a3 is connected with a GNSS antenna, the first movable end 212a1 is connected with the GNSS radio frequency circuit 21, and the second movable end 212a2 is connected with a first receiving pin 2231 of the power detection device 223;
when the power detection device 223 detects the transmission power of the signal transmitted by the antenna 221 in the first frequency band at the GNSS antenna 211, the stationary terminal 212a3 of the single-pole double-throw switch 212a is connected to the second moving terminal 212a 2.
Specifically, the stationary end 212a3 of the single-pole double-throw switch 212a is always connected to the GNSS rf circuit 21, and when the first receiving pin 2231 detects the power of the first path, the stationary end 212a3 is connected to the second moving end 212a 2;
it is noted that at the moment of detecting, the stationary terminal 212a3 of the single-pole double-throw switch 212a is connected to the second moving terminal 212a2, and then the stationary terminal 212a3 is returned to the state of being connected to the first moving terminal 212a1, so as to maintain the normal reception and processing of GNSS signals;
by combining the signal processing method provided by the embodiment of the application, the first power of the signal emitted by the antenna of the first frequency band on the GNSS antenna is acquired in the time slot idle period of the GNSS antenna, and it can be known that when the connection is changed by the single-pole double-throw switch to perform the circuit power detection, the GNSS radio frequency circuit is inevitably disconnected from the GNSS antenna, so that the circuit power is detected in the time slot idle period of the GNSS antenna, the first power is acquired according to the power mapping relation table, and the influence of switching the single-pole double-throw switch on the GNSS signal can be maximally reduced.
Referring to fig. 4, the feedback device 212 includes;
a directional coupler 212b including a main line 212b1, a sub line 212b2, and a coupled port 212b 3;
the main line 212b1 is connected to the first path, and both ends of the main line 212b1 are respectively connected to the GNSS rf circuit 21 and the GNSS antenna 211;
the secondary line 212b2 is connected to the coupling port 212b 3;
the coupling port 212b3 is connected to the first receiving pin 2231.
Through the directional coupler 212b, part of the power of the first path can be fed back to the secondary line 212b2, the second power is detected through the first receiving pin 2231, and the CPU looks up the power mapping table to determine the first power at this time;
it should be noted that, when the feedback device 212 is the directional coupler 212b, and when the power mapping relationship is generated, the second power value of the power mapping relationship table needs to be correspondingly adjusted according to the parameter of the directional coupler 212b, so as to ensure that, when the feedback device in the first path is the directional coupler 212b, the first frequency band Tx power, i.e., the first power, at the GNSS antenna 211 can be obtained through the second power detected by the first receiving pin 2231 and the power mapping relationship table.
Referring to fig. 3 and 4, the power detection device 223 may be integrated into a radio frequency transceiver, such as a chip radio frequency transceiver WTR, in which the WTR223 includes a high frequency pin 2233 and a medium frequency pin 2234 in addition to a first receiving pin 2231 and a second receiving pin 2232, and generates a first band transmission signal through the WTR 223;
the first band rf circuit may further include a multi-mode power amplifier, the multi-mode power amplifier 222 includes an intermediate frequency power amplifier 2224, a high frequency power amplifier 2225, and a band transceiving line 2223, one end of the intermediate frequency power amplifier 2224 is connected to the intermediate frequency pin 2234 of the WTR223, and the other end is connected to the band transceiving line 2223; one end of the high-frequency power amplifier 2225 is connected to the high-frequency pin 2233 of the WTR223, and the other end is connected to the frequency band transceiving line 2223; the frequency band transceiving line 2223 includes transceiving lines of multiple frequency bands, and in fig. 3 and 4, the frequency band B39 is used as the first frequency band, and other frequency bands may also be used as the first frequency band, and corresponding parameter adjustment is performed, so that the signal processing method provided in the application embodiment in accordance with different first frequency bands can be obtained; the other end of the band transceiving line 2223 is connected to the output port 2222, and is configured to output the signal passing through the multi-mode power amplifier 222 to the antenna 221 of the first frequency band, and receive or transmit the signal of the first frequency band through the antenna 221 of the first frequency band.
Referring to fig. 5, an embodiment of the present application provides a processing apparatus 50 of a GNSS, including:
a first obtaining module 51, configured to obtain, if it is detected that the antenna of the first frequency band and the GNSS antenna are simultaneously in a working state, a first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
the first processing module 52 is configured to, if the first power is less than or equal to a preset threshold, process the GNSS signal received by the GNSS antenna as an effective GNSS signal;
the second processing module 53 is configured to discard the GNSS signal received by the GNSS antenna in the transmission time slot of the antenna in the first frequency band if the first power is greater than the preset threshold.
Optionally, referring to fig. 6, the first obtaining module 51 further includes a second obtaining sub-module 54, configured to obtain, during a slot idle period of the GNSS antenna, a first power of a signal transmitted by the antenna in the first frequency band on the GNSS antenna.
Optionally, referring to fig. 6, the first obtaining module 51 further includes a third obtaining submodule 55, configured to obtain, according to a preset period, a first power, on the GNSS antenna, of a signal transmitted by the antenna of the first frequency band in a time slot idle period of the GNSS antenna.
The GNSS processing device in the embodiment of the application can detect the working states of the antenna of the first frequency band and the GNSS antenna, when the antenna of the first frequency band and the GNSS antenna are both in the working states, the first power of the signal transmitted by the antenna of the first frequency band on the GNSS antenna is obtained, the first power is compared with a preset threshold value to decide the acceptance or rejection of the signal received by the GNSS antenna, and when the first power is less than or equal to the preset threshold value, the signal transmitted by the first frequency band does not interfere with the GNSS signal; when the first power is larger than the preset threshold value, the first frequency band emission signal interferes with the GNSS signal, and the GNSS signal received by the GNSS antenna in the emission time slot of the first frequency band antenna is discarded, so that the received GNSS signal is more complete and stable, the positioning performance of the GNSS is improved, and the GNSS signal is interfered by other frequency band signals, thereby causing the problem that the GNSS performance is influenced.
The processing device of the GNSS in the embodiment of the present application may be a terminal, or may be a component, an integrated circuit, or a chip in the terminal. The device may be a mobile device or a non-mobile device. For example, the mobile device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), or the like, and the non-mobile device may be a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, and the embodiments of the present application are not limited in particular.
The processing apparatus of the GNSS in the embodiment of the present application may be a device having an operating system. The operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, and embodiments of the present application are not limited specifically.
The processing device of the GNSS provided in the embodiment of the present application can implement each process implemented by the signal processing method in the method embodiment of fig. 1, and is not described here again to avoid repetition.
Optionally, as shown in fig. 7, an exemplary embodiment of the present application further provides a structural schematic diagram of an electronic device 700, which includes a processor 702, a memory 701, and a program or an instruction stored in the memory 701 and capable of being executed on the processor 702, where the program or the instruction is executed by the processor 702 to implement each process of the signal processing method embodiment, and the same technical effect can be achieved, and is not described herein again to avoid repetition.
It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.
Fig. 8 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
The electronic device 800 includes, but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810.
Those skilled in the art will appreciate that the electronic device 800 may further comprise a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 810 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The electronic device structure shown in fig. 8 does not constitute a limitation of the electronic device, and the electronic device may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is omitted here.
The processor 810 is configured to detect working states of the antenna and the GNSS antenna of the first frequency band, and if it is detected that the antenna and the GNSS antenna of the first frequency band are simultaneously in the working states, obtain a first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
the processor 810 is further configured to process, if the first power is less than or equal to a preset threshold, the GNSS signal received by the GNSS antenna as an effective GNSS signal;
the processor 810 is further configured to discard the GNSS signal received by the GNSS antenna in the transmission timeslot of the antenna in the first frequency band if the first power is greater than the preset threshold.
The electronic device 800 may detect the working states of the antenna and the GNSS antenna of the first frequency band, acquire a first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna if it is detected that the antenna and the GNSS antenna of the first frequency band are simultaneously in the working states, accept or reject the GNSS signal received by the GNSS antenna by comparing the first power with a preset threshold, discard the GNSS signal received by the GNSS antenna in the transmission time slot of the antenna of the first frequency band when the first power is greater than the preset threshold, and process the remaining GNSS signal; when the first power is smaller than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal; therefore, the problem that the GNSS performance is influenced due to the fact that the GNSS signals are excessively discarded when the first frequency band transmitting power of the signals transmitted by the first frequency band transmitter is smaller when the signals are coupled to the GNSS antenna is solved, and the GNSS positioning performance is improved due to the fact that the GNSS signals are interfered by other frequency band signals.
Optionally, the processor 810 is further configured to obtain, during a slot idle period of the GNSS antenna, a first power of a signal transmitted by the antenna in the first frequency band on the GNSS antenna.
Optionally, the processor 810 is further configured to obtain, according to a preset period and in a time slot idle period of the GNSS antenna, a first power, on the GNSS antenna, of a signal transmitted by the antenna in the first frequency band.
It should be understood that in the embodiment of the present application, the input Unit 804 may include a Graphics Processing Unit (GPU) 8041 and a microphone 8042, and the graphics processing Unit 8041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 806 may include a display panel 8061, and the display panel 8061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8071 and other input devices 8072. A touch panel 8071, also referred to as a touch screen. The touch panel 8071 may include two portions of a touch detection device and a touch controller. Other input devices 8072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein. The memory 809 may be used to store software programs as well as various data including, but not limited to, application programs and operating systems. The processor 810 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 810.
The embodiment of the application further provides electronic equipment, and the electronic equipment comprises the radio frequency circuit of the GNSS provided by the embodiment of the application.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the signal processing method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to execute a program or an instruction to implement each process of the signal processing method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
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. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
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 application 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 a terminal (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 application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A method of signal processing, the method comprising:
if the antenna of the first frequency band and the GNSS antenna are detected to be in a working state at the same time, acquiring first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
if the first power is smaller than or equal to a preset threshold value, processing the GNSS signal received by the GNSS antenna as an effective GNSS signal;
and if the first power is larger than a preset threshold value, discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
2. The signal processing method of claim 1, wherein the obtaining a first power of the GNSS antenna for the signal transmitted by the antenna in the first frequency band comprises:
and acquiring first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna in a time slot idle period of the GNSS antenna.
3. The signal processing method of claim 2, wherein obtaining, during an idle time slot of the GNSS antenna, a first power of the GNSS antenna for the signal transmitted by the antenna in the first frequency band comprises:
and acquiring first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna in a time slot idle period of the GNSS antenna according to a preset period.
4. A radio frequency circuit of a GNSS, comprising:
the device comprises a GNSS radio frequency circuit, a GNSS antenna, a first frequency band radio frequency circuit, a first frequency band antenna, a feedback device, a power detection device and a controller;
the GNSS radio frequency circuit is connected with the GNSS antenna through a first passage;
the first frequency band radio frequency circuit is connected with the antenna of the first frequency band through a second passage;
the feedback device is respectively connected with the first path and the power detection device;
the power detection device comprises a first receiving pin, and the first receiving pin is connected with the feedback device and used for determining first power of a signal transmitted by the antenna of the first frequency band on the GNSS antenna;
the controller is connected with the power detection device and the GNSS radio frequency circuit and is used for controlling the GNSS radio frequency circuit to process the GNSS signals received by the GNSS antenna as effective GNSS signals if the first power is less than or equal to a preset threshold value; and if the first power is larger than a preset threshold value, controlling the GNSS radio frequency circuit to discard the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band, and processing the rest GNSS signals.
5. The GNSS radio frequency circuit according to claim 4, wherein the power detection device is further configured to determine a first power of the signal transmitted by the antenna of the first frequency band on the GNSS antenna according to a power mapping table and the second power detected from the first receiving pin; the power mapping relation table comprises a plurality of groups of mapping relations of the first power and the second power.
6. The radio frequency circuit of GNSS as claimed in claim 5, wherein the power detection device further comprises a second receiving pin, the first band radio frequency circuit comprises a coupler,
the coupler is connected with the second receiving pin and the second path;
the power detection device is further configured to obtain a transmission power of the antenna in the first frequency band and a feedback power detected from the second receive pin, use the transmission power as the first power, use the feedback power as the second power, and generate a power mapping table.
7. The radio frequency circuit of the GNSS as recited in claim 4, wherein the feedback device comprises:
a directional coupler comprising a main line, a secondary line, and a coupled port;
the main line is connected to the first channel, and two ends of the main line are respectively connected with the GNSS radio frequency circuit and the GNSS antenna;
the secondary line is connected with the coupling port;
the coupling port is connected with the first receiving pin.
8. An electronic device, comprising: radio frequency circuitry of a GNSS as claimed in any of claims 4 to 7.
9. A processing apparatus of a GNSS, comprising:
the GNSS antenna comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring first power of a signal transmitted by the antenna of a first frequency band on the GNSS antenna if the antenna of the first frequency band and the GNSS antenna are detected to be in a working state at the same time;
the first processing module is used for processing the GNSS signal received by the GNSS antenna as an effective GNSS signal if the first power is less than or equal to a preset threshold;
and the second processing module is used for discarding the GNSS signals received by the GNSS antenna in the transmitting time slot of the antenna of the first frequency band and processing the rest GNSS signals if the first power is greater than a preset threshold.
10. An electronic device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the signal processing method according to any one of claims 1 to 3.
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