CN109347508B - Mobile terminal and power detection method - Google Patents
Mobile terminal and power detection method Download PDFInfo
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- CN109347508B CN109347508B CN201811288202.5A CN201811288202A CN109347508B CN 109347508 B CN109347508 B CN 109347508B CN 201811288202 A CN201811288202 A CN 201811288202A CN 109347508 B CN109347508 B CN 109347508B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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Abstract
The invention provides a mobile terminal and a power detection method, wherein the mobile terminal comprises a radio frequency transceiver, at least two power amplifiers, a directional coupler, at least two antennas, a power detection circuit and a processor; the radio frequency transceiver is respectively connected with each power amplifier and the power detection circuit; the directional coupler is respectively connected with the power detection circuit and one of the at least two antennas; and the processor is used for controlling a target radio frequency path corresponding to a target carrier signal to be conducted with the antenna connected with the directional coupler. The invention can respectively realize the real-time detection of the power of at least two radio frequency channels, reduce the complexity of circuit design in the aspect of hardware design and save the manufacturing cost.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a mobile terminal and a power detection method.
Background
With the continuous development of communication technology, smart phones have also been developed rapidly. In order to improve the uplink and downlink transmission rate, the current mobile terminal mostly adopts a scheme of dual carrier aggregation. The uplink dual-carrier aggregation can greatly improve the performance of the uplink signal of the mobile terminal. The accuracy of power affects the normal use of the user.
At present, when two uplink carriers between bands are aggregated, two radio frequency access circuits work simultaneously, and two directional couplers 1 and 2 are needed to respectively detect the power of the two radio frequency access circuits, as shown in fig. 1. When three uplink carriers are aggregated, a directional coupler needs to be added to respectively detect the power of three radio frequency paths, the circuit design is complex, and the cost is increased.
Disclosure of Invention
The embodiment of the invention provides a mobile terminal and a power detection method, which aim to solve the problems of complex circuit design and high cost caused by the fact that a plurality of directional couplers are needed when the existing mobile terminal realizes the inter-band uplink carrier aggregation.
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 mobile terminal, including: the device comprises a radio frequency transceiver, at least two power amplifiers, a directional coupler, at least two antennas, a power detection circuit and a processor;
the radio frequency transceiver is respectively connected with each power amplifier and the power detection circuit;
the directional coupler is respectively connected with the power detection circuit and one of the at least two antennas;
and the processor is used for controlling a target radio frequency path corresponding to a target carrier signal to be conducted with the antenna connected with the directional coupler.
In a second aspect, an embodiment of the present invention further provides a power detection method applied to the mobile terminal in the foregoing embodiment, including:
determining a target carrier signal;
and controlling a target radio frequency path corresponding to the target carrier signal to be conducted with an antenna connected with the directional coupler.
In a third aspect, an embodiment of the present invention further provides a mobile terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the power detection method described above.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the power detection method as described above.
In the embodiment of the invention, the radio frequency transceiver is respectively connected with each power amplifier and the power detection circuit, and the directional coupler is respectively connected with the power detection circuit and one antenna of at least two antennas, so that the mobile terminal only utilizes one directional coupler to aggregate uplink carriers between bands, and when a plurality of radio frequency paths need power detection, the processor controls a target radio frequency path corresponding to a target carrier signal to be communicated with the antenna connected with the directional coupler, thereby realizing the detection of the power of the plurality of carrier signals.
Drawings
Fig. 1 is a schematic circuit structure diagram of a conventional mobile terminal;
fig. 2 is a schematic circuit structure diagram of a mobile terminal according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a power detection method according to an embodiment of the 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.
Fig. 2 is a schematic diagram of a circuit structure of a mobile terminal according to an embodiment of the present invention. The mobile terminal includes: a radio frequency transceiver 101, at least two power amplifiers, a directional coupler 102, at least two antennas, a power detection circuit 103, and a processor (not shown).
The radio frequency transceiver 101 is connected to each power amplifier and the power detection circuit 103.
The radio frequency transceiver 101 is configured to send different carrier signals to different power amplifiers through different radio frequency paths, where the radio frequency paths, the carrier signals, and the power amplifiers correspond to one another.
The directional coupler 102 is connected to the power detection circuit 103 and one of the at least two antennas, respectively.
And the processor is used for controlling a target radio frequency path corresponding to the target carrier signal to be conducted with the antenna connected with the directional coupler 102.
Here, the radio frequency path includes, but is not limited to: radio frequency transceiver 101, power amplifier, directional coupler 102. The radio frequency path may further include: a main set switch 104, a selection switch 105, a duplexer, an impedance matching network, a feedback path, etc.
It should be noted that the path including one power amplifier is a radio frequency path.
It should be noted that the power detection circuit 103 may be disposed outside the rf transceiver 101, or may be disposed inside the rf transceiver 101. Typically, the power detection circuit 103 is disposed inside the rf transceiver 101.
Here, the output terminal of the directional coupler 102 is connected to one of the at least two antennas, and the coupling terminal of the directional coupler 102 is connected to the power detection circuit 103.
It should be noted that the processor controls the target rf path corresponding to the target carrier signal to be conducted with the antenna connected to the directional coupler 102, specifically, controls the target rf path corresponding to the target carrier signal to be electrically connected to the directional coupler 102. Specifically, a target rf path corresponding to the control target carrier signal is electrically connected to the input terminal of the directional coupler 102.
In addition, the processor controls a target rf path corresponding to the target carrier signal to be conducted with the antenna connected to the directional coupler 102, and also controls a target rf path corresponding to the target carrier signal to be conducted with the power detection circuit 103.
It can be understood that, while the processor controls the target rf path corresponding to the target carrier signal to be conducted with the antenna connected to the directional coupler 102, the target rf path corresponding to the target carrier signal is conducted with the power detection circuit 103. Therefore, the power detection of the mobile terminal to the radio frequency channel is realized.
In the embodiment of the invention, the radio frequency transceiver is respectively connected with each power amplifier and the power detection circuit, and the directional coupler is respectively connected with the power detection circuit and one antenna of at least two antennas, so that the mobile terminal only utilizes one directional coupler to aggregate uplink carriers between bands, and when a plurality of radio frequency channels need power detection, the processor controls the target radio frequency channel corresponding to a target carrier signal to be communicated with the antenna connected with the directional coupler, thereby realizing the detection of the power of a plurality of carrier signals.
Optionally, the processor is specifically configured to receive a target transmit power of a target carrier signal required by the base station during inter-band uplink carrier aggregation; and controlling a target radio frequency channel corresponding to the target carrier signal to be communicated with the power detection circuit 103 according to the target transmitting power.
Here, the mobile terminal supports carrier aggregation, can simultaneously access at least two carriers, and simultaneously perform uplink and downlink data transmission on the at least two carriers, so that the data transmission rate is greatly improved.
The inter-band uplink carrier aggregation refers to aggregating at least two uplink carriers of different frequency bands, so that one user performs uplink data transmission on the at least two uplink carriers of different frequency bands.
It should be noted that, after the target rf path is conducted with the power detection circuit 103, the mobile terminal performs power detection on the target rf path.
Here, the power detection of the mobile terminal generally includes coupling the signal magnitude on the radio frequency circuit into the radio frequency transceiver 101 through the directional coupler 102, converting different powers into different ADC values, and then writing the corresponding relationship between the power and the ADC values into the mobile terminal to implement the calling of different power levels.
The correspondence obtained by the above processing is a preset correspondence between the power detection value, the power level of the radio frequency transceiver 101, and the transmission power.
It should be further noted that, when the transmission power of the target carrier signal is different from the target transmission power, the power level of the rf transceiver 101 is usually adjusted to meet the requirement of the base station. The method specifically comprises the following steps:
and acquiring a power detection value of the target carrier signal, and adjusting the power level of the radio frequency transceiver 101 according to the power detection value, the target transmission power and the preset corresponding relation between the power level of the radio frequency transceiver 101 and the transmission power, so that the transmission power of the target carrier signal is the target transmission power.
Here, the processor acquires the power detection value of the target carrier signal, which is a value demodulated from the power detection.
In a preferred embodiment of the present invention, the mobile terminal further includes: a main set switch 104 and a selection switch 105, as shown in fig. 2.
The main set switch 104 is connected to each power amplifier and the selection switch 105; the selection switch 105 is connected to the directional coupler 102 and to the other antennas of the at least two antennas, respectively.
It should be noted that the other antennas are antennas other than the antenna connected to the directional coupler 102 among the at least two antennas.
Further, the processor is connected to the selection switch 105, and specifically configured to control the selection switch 105 to connect a target radio frequency path corresponding to the target carrier signal with the power detection circuit 103 according to the target transmission power.
Here, the processor controls the selection switch 105 to connect the target rf path corresponding to the target carrier signal with the power detection circuit 103, specifically, controls the selection switch 105 to electrically connect the target rf path corresponding to the target carrier signal with the directional coupler 102, and specifically, controls the selection switch 105 to electrically connect the target rf path corresponding to the target carrier signal with the input terminal of the directional coupler 102.
It should be noted that the processor controls the connection state of the selection switch 105 through the switch control logic.
In the embodiment of the invention, the selection switch is adopted and is respectively connected with the main set switch, the antenna connected with the directional coupler and other antennas in the at least two antennas except the antenna, so that the mobile terminal only utilizes one directional coupler, the uplink carrier aggregation between bands is realized, and when a plurality of radio frequency paths need power detection, the power detection of carrier signals of a plurality of frequency bands is realized by respectively controlling the conduction of each radio frequency path and the power detection circuit, thus the power of the at least two radio frequency paths can be respectively detected in real time, the complexity of circuit design is reduced in the aspect of hardware design, and the manufacturing cost is saved.
Based on the embodiment shown in fig. 2, in another preferred embodiment of the present invention, the at least two power amplifiers comprise: a first power amplifier 106 and a second power amplifier 107, the at least two antennas comprising: a first antenna 108 and a second antenna 109; the radio frequency transceiver 101 is respectively connected to the first power amplifier 106 and the second power amplifier 107, and is specifically configured to send a first carrier signal to the first power amplifier 106 through a first radio frequency path and send a second carrier signal to the second power amplifier 107 through a second radio frequency path; the directional coupler 102 is connected to the first antenna 108; the second antenna 109 is connected to the selection switch 105.
Here, the mobile terminal in this embodiment includes two radio frequency paths. Based on the above, the processor is specifically configured to receive a first target transmission frequency of a first carrier signal required by the base station during inter-band uplink carrier aggregation; the selection switch 105 is controlled to conduct the first rf path to the power detection circuit 103 according to the first target transmitting frequency.
It should be noted that, when the inter-band uplink carrier aggregation is performed, the first target transmission frequency of the first carrier signal required by the base station is received, which indicates that the base station needs to adjust the power of the first carrier signal in the uplink carrier aggregation including the first carrier signal and the second carrier signal. Also, the selection switch 105 is controlled to connect the first rf path to the power detection circuit 103 according to the first target transmitting frequency, so as to perform power detection on the first carrier signal.
Here, the processor controls the selection switch 105 to connect the first rf path to the power detection circuit 103, specifically, controls the selection switch 105 to electrically connect the first rf path to the directional coupler 102, and specifically, controls the selection switch 105 to electrically connect the first rf path to the input terminal of the directional coupler 102.
If the power of the first carrier signal is detected, the transmission power of the first carrier signal cannot meet the requirement of the base station, and in order to meet the requirement of the base station, the processor may be further specifically configured to obtain a first power detection value of the first carrier signal; and adjusting the power level of the radio frequency transceiver 101 according to the first power detection value, the first target transmission frequency and the first preset corresponding relation among the power detection value, the power level of the radio frequency transceiver 101 and the transmission power, so that the transmission power of the first frequency band carrier signal is the first target transmission power. Here, for example, for the first rf path, the first predetermined corresponding relationship between the power detection value, the power level of the rf transceiver and the transmission power may be as shown in table 1 below.
| Channel with a plurality of channels | RGI | Power (dBm) | Power detection value |
| 18300 | 71 | 28 | 48013 |
| 18300 | 70 | 27.8 | 46011 |
| 18300 | 69 | 27.5 | 43994 |
| 18300 | 68 | 27 | 42044 |
| 18300 | 67 | 26.4 | 39150 |
| 18300 | 66 | 25.6 | 35175 |
| 18300 | 65 | 24.7 | 31203 |
| 18300 | 64 | 23.8 | 27322 |
| 18300 | 63 | 23 | 23235 |
| 18300 | 62 | 22 | 19442 |
| 18300 | 61 | 21 | 15256 |
TABLE 1
It should be noted that, the data in the above table corresponds to each row one to one.
Where RGI (radio frequency Gain index) is used to indicate the power level of the radio frequency transceiver.
The power detection value is the current power feedback back to the power of the RF transceiver and is converted into a corresponding ADC value.
For example, when the value fed back by the power detection of the first rf path is between 23235, it can be known that the current transmission power of the mobile terminal is 23dBm and the power level RGI of the rf transceiver is 63 according to the first preset corresponding relationship, which is the power detection process.
Specifically, the current power level of the rf transceiver is known from the first power detection value and the first predetermined corresponding relationship, and the first target power level of the rf transceiver is known from the first target transmission power and the first predetermined corresponding relationship, so that the current power level can be adjusted according to the first target power level, and the power level of the rf transceiver can be adjusted from the current power level to the first target power level.
Here, the processor may be further specifically configured to receive a second target transmission frequency of a second carrier signal required by the base station during inter-band uplink carrier aggregation; according to the second target transmitting frequency, the selection switch 105 is controlled to conduct the second radio frequency path with the power detection circuit 103.
It should be noted that, when the inter-band uplink carrier aggregation is performed, the second target transmission power of the second carrier signal required by the base station is received, which indicates that the base station needs to adjust the power of the second carrier signal in the uplink carrier aggregation including the first carrier signal and the second carrier signal.
Also, the selection switch 105 is controlled to conduct the second rf path with the power detection circuit 103 according to the second target transmission power, for the purpose of performing power detection on the second rf path.
Here, the processor controls the selection switch 105 to connect the second rf path to the power detection circuit 103, specifically, controls the selection switch 105 to electrically connect the second rf path to the directional coupler 102, and specifically, controls the selection switch 105 to electrically connect the second rf path to the input terminal of the directional coupler 102.
If the power detection is performed on the second carrier signal, the transmission power of the second carrier signal cannot meet the requirement of the base station, and in order to meet the requirement of the base station, the processor may be further specifically configured to obtain a second power detection value of the second carrier signal; and adjusting the power level of the radio frequency transceiver 101 according to the second power detection value, the second target transmission frequency and the second preset corresponding relationship among the power detection value, the power level of the radio frequency transceiver 101 and the transmission power, so that the transmission power of the second carrier signal is the second target transmission power.
Here, for example, for the second rf path, the second preset corresponding relationship between the power detection value, the power level of the rf transceiver and the transmission power may be as shown in table 2 below.
| Channel with a plurality of channels | RGI | Power (dBm) | Power detection value |
| 19575 | 71 | 27.8 | 47253 |
| 19575 | 70 | 27.6 | 45011 |
| 19575 | 69 | 27.3 | 42994 |
| 19575 | 68 | 26.8 | 40944 |
| 19575 | 67 | 26.2 | 38316 |
| 19575 | 66 | 25.4 | 34307 |
| 19575 | 65 | 24.6 | 30238 |
| 19575 | 64 | 23.6 | 26332 |
| 19575 | 63 | 22.7 | 22315 |
| 19575 | 62 | 21.8 | 18310 |
| 19575 | 61 | 20.7 | 14216 |
TABLE 2
It should be noted that, the data in the above table corresponds to each row one to one.
Where RGI (radio frequency Gain index) is used to indicate the power level of the radio frequency transceiver.
The power detection value is the current power feedback back to the power of the RF transceiver and is converted into a corresponding ADC value.
Specifically, the current power level of the rf transceiver is known from the second power detection value and the second predetermined corresponding relationship, and the second target power level of the rf transceiver is known from the second target transmission power and the second predetermined corresponding relationship, so that the current power level can be adjusted according to the second target power level, and the power level of the rf transceiver can be adjusted from the current power level to the second target power level.
Thus, through the adjustment of the power level, each power in the uplink carrier aggregation between the bands of the mobile terminal is in a stable state. When the base station requires a certain carrier signal of the mobile terminal to adjust the power, the mobile terminal connects the radio frequency path corresponding to the carrier signal with the directional coupler through the selection switch, so as to adjust the power, and finally the requirement of the base station on the power is met.
Preferably, the selection switch 105 is a double pole double throw switch. The double-pole double-throw switch is used for conducting the first radio frequency path and the power detection circuit 103 or conducting the second radio frequency path and the power detection circuit 103.
In this embodiment, when the first carrier signal needs power detection, the double-pole double-throw switch is controlled to switch the first radio frequency path to the first antenna 108 with the directional coupler 102, that is, the first radio frequency path is connected to the directional coupler 102 and used for conducting the first radio frequency path and the power detection circuit 103; when the power of the first carrier signal is adjusted to the target power, the first antenna 108 and the second antenna 109 are in a free switching state.
When the second carrier signal needs power detection, the double-pole double-throw switch is controlled to switch the second radio frequency path to the first antenna 108 with the directional coupler 102, namely, the second radio frequency path is connected with the directional coupler 102 and used for conducting the second radio frequency path and the power detection circuit 103; when the power of the second carrier signal is adjusted to the target power, the first antenna 108 and the second antenna 109 are in a free switching state. The embodiment can detect the power in real time under the condition that the use scene of a user is complex, such as the circuit is influenced by factors such as temperature and humidity.
As shown in fig. 3, a schematic flow chart of the power detection method according to the embodiment of the present invention is applied to the mobile terminal according to the above embodiment. The method may comprise the steps of:
in this step, the target carrier signal may be determined by the mobile terminal device itself according to specific conditions, or may be determined by the base station.
It should be noted that, the processor controls the target rf path corresponding to the target carrier signal to be conducted with the antenna connected to the directional coupler, and also controls the target rf path corresponding to the target carrier signal to be conducted with the power detection circuit.
It can be understood that, while the processor controls the target rf path corresponding to the target carrier signal to be conducted with the antenna connected to the directional coupler, the target rf path corresponding to the target carrier signal is conducted with the power detection circuit. Therefore, the power detection of the mobile terminal to the radio frequency channel is realized.
In the embodiment of the invention, the target radio frequency channel corresponding to the target carrier signal is controlled to be communicated with the antenna connected with the directional coupler by determining the target carrier signal, so that the power of a plurality of carrier signals is detected, the power of at least two radio frequency channels can be detected in real time respectively, the complexity of circuit design is reduced in the aspect of hardware design, and the manufacturing cost is saved.
Based on the embodiment shown in fig. 3, as a preferred implementation manner, the method may further include the following steps:
and receiving the target transmitting power of a target carrier signal required by the base station during the inter-band uplink carrier aggregation.
In this step, inter-band uplink carrier aggregation refers to aggregating at least two uplink carriers of different frequency bands, so that one user performs uplink data transmission on the at least two uplink carriers of different frequency bands.
Here, the target transmission power of the target carrier signal required by the base station is received, which indicates that the base station is to adjust the power of the target frequency band carrier signal.
And controlling a target radio frequency channel corresponding to the target carrier signal to be communicated with a power detection circuit according to the target transmitting power.
In this step, according to the target transmitting power, a target rf path corresponding to the target carrier signal is controlled to be conducted with the power detection circuit, so as to perform power detection on the target carrier signal.
Here, it should be further explained that, when the transmission power of the target carrier signal is detected to be different from the target transmission power, the power level of the radio frequency transceiver is generally required to be adjusted in order to enable the transmission power of the target carrier signal to meet the requirement of the base station. The method specifically comprises the following steps:
and acquiring a power detection value of the target carrier signal.
In this step, after the target rf path corresponding to the target carrier signal is conducted with the power detection circuit, the power detection value of the target carrier signal may be obtained through the power detection circuit.
And adjusting the power grade of the radio frequency transceiver according to the power detection value, the target transmitting power and the preset corresponding relation between the power detection value and the power grade and transmitting power of the radio frequency transceiver, so that the transmitting power of the target carrier signal is the target transmitting power.
In this step, the current power level of the radio frequency transceiver is known from the power detection value and the preset corresponding relationship, and the target power level of the radio frequency transceiver is known from the target transmitting power and the preset corresponding relationship.
Therefore, the power of at least two radio frequency channels can be respectively detected in real time, and the power adjustment of the radio frequency channels can meet the requirements of a base station.
Based on the above preferred implementation, referring to the schematic circuit structure shown in fig. 2, optionally, the steps of: when the inter-band uplink carrier aggregation is performed, receiving a target transmission power of a target carrier signal required by a base station may specifically include the following steps:
receiving a first target transmitting frequency of a first carrier signal required by a base station during inter-band uplink carrier aggregation;
in this step, when the inter-band uplink carrier aggregation is performed, the first target transmission frequency of the first carrier signal required by the base station is received, which indicates that the base station needs to adjust the power of the first carrier signal in the uplink carrier aggregation including the first carrier signal and the second carrier signal.
According to the target transmitting power, controlling a target radio frequency path corresponding to the target carrier signal to be conducted with a power detection circuit, comprising:
and controlling a selection switch to conduct a first radio frequency channel and a power detection circuit according to the first target transmitting frequency.
In this step, the selection switch is controlled to connect the first rf path to the power detection circuit according to the first target transmitting frequency, so as to perform power detection on the first carrier signal.
Here, it should be further noted that when the transmission power of the first carrier signal is detected to be different from the first target transmission power, the power level of the radio frequency transceiver is generally required to be adjusted in order to enable the transmission power of the first carrier signal to meet the requirement of the base station. The method specifically comprises the following steps:
acquiring a first power detection value of a first carrier signal;
in this step, a first power detection value of the first carrier signal may be obtained by the power detection circuit.
And adjusting the power level of the radio frequency transceiver according to the first power detection value, the first target transmission frequency and the first preset corresponding relation among the power detection value, the power level of the radio frequency transceiver and the transmission power, so that the transmission power of the first carrier signal is the first target transmission power.
In this step, the current power level of the rf transceiver is known from the first power detection value and the first predetermined corresponding relationship, and the first target power level of the rf transceiver is known from the first target transmission power and the first predetermined corresponding relationship, so that the current power level can be adjusted according to the first target power level, and the power level of the rf transceiver can be adjusted from the current power level to the first target power level.
Based on the above preferred implementation, referring to the schematic circuit structure shown in fig. 2, optionally, the steps of: the step of receiving the target transmit power of the target carrier signal required by the base station during inter-band uplink carrier aggregation may specifically include the following steps:
receiving a second target transmitting frequency of a second carrier signal required by the base station during the inter-band uplink carrier aggregation;
in this step, when the inter-band uplink carrier aggregation is performed, a second target transmission power of a second carrier signal required by the base station is received, which indicates that the base station needs to adjust the power of the second carrier signal in the uplink carrier aggregation including the first carrier signal and the second carrier signal.
According to the target transmitting power, controlling a target radio frequency access corresponding to the target carrier signal to be conducted with a power detection circuit, and the method comprises the following steps:
and controlling a selection switch to conduct a second radio frequency channel and the power detection circuit according to the second target transmitting frequency.
In this step, the selection switch is controlled to connect the second rf path to the power detection circuit according to the second target transmission power, so as to perform power detection on the second rf path.
Here, it should be further noted that when the transmission power of the second carrier signal is detected to be different from the second target transmission power, the power level of the radio frequency transceiver is generally required to be adjusted in order to enable the transmission power of the second carrier signal to meet the requirement of the base station. The method specifically comprises the following steps:
acquiring a second power detection value of a second carrier signal;
in this step, a second power detection value of the second carrier signal may be obtained by the power detection circuit.
And adjusting the power level of the radio frequency transceiver according to the second power detection value, the second target transmission frequency and the second preset corresponding relation among the power detection value, the power level of the radio frequency transceiver and the transmission power, so that the transmission power of the second carrier signal is the second target transmission power.
In this step, the current power level of the rf transceiver is known from the second power detection value and the second predetermined corresponding relationship, and the second target power level of the rf transceiver is known from the second target transmission power and the second predetermined corresponding relationship, so that the current power level can be adjusted according to the second target power level, and the power level of the rf transceiver can be adjusted from the current power level to the second target power level.
It should be noted that the two alternative embodiments based on the preferred implementation manners may be implemented in different embodiments, or may be implemented in the same embodiment sequentially and separately.
In the embodiment of the invention, the target radio frequency channel corresponding to the target carrier signal is controlled to be communicated with the antenna connected with the directional coupler by determining the target carrier signal, so that the power of a plurality of carrier signals is detected, the power of at least two radio frequency channels can be detected in real time respectively, the complexity of circuit design is reduced in the aspect of hardware design, and the manufacturing cost is saved.
In the embodiment of the present invention, the mobile terminal 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.
Preferably, an embodiment of the present invention further provides a mobile terminal, 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 the processes of the power detection method embodiment, and can achieve the same technical effects, 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 detection 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 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 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 (12)
1. A mobile terminal, comprising: the device comprises a selection switch, a radio frequency transceiver, at least two power amplifiers, a directional coupler, at least two antennas, a power detection circuit and a processor;
the radio frequency transceiver is respectively connected with each power amplifier and the power detection circuit;
the directional coupler is respectively connected with the power detection circuit and one of the at least two antennas;
the selection switch is connected with the directional coupler and is respectively connected with other antennas in the at least two antennas;
the processor is used for controlling a target radio frequency path corresponding to a target carrier signal to be conducted with an antenna connected with the directional coupler; the power detection circuit is used for receiving a first target transmitting frequency of a first carrier signal required by a base station when an interband uplink carrier is aggregated, and controlling the selection switch to conduct a first radio frequency path and the power detection circuit according to the first target transmitting frequency; or receiving a second target transmitting frequency of a second carrier signal required by the base station, and controlling the selection switch to conduct a second radio frequency channel and the power detection circuit according to the second target transmitting frequency;
the at least two antennas include: the directional coupler is connected with the first antenna, and the second antenna is connected with the selection switch; and when the power of the carrier signal is adjusted to the target power, the first antenna and the second antenna are in a free switching state.
2. The mobile terminal of claim 1, wherein the radio frequency transceiver is configured to transmit different carrier signals to different power amplifiers through different radio frequency paths, and the radio frequency paths, the carrier signals and the power amplifiers correspond to one another.
3. The mobile terminal of claim 1, further comprising: a main set switch;
wherein the main set switch is connected with each power amplifier and the selection switch respectively.
4. The mobile terminal according to claim 3, wherein the processor is connected to the selection switch, and is specifically configured to control the selection switch to conduct a target radio frequency path corresponding to the target carrier signal with the power detection circuit according to a target transmission power.
5. The mobile terminal of claim 3, wherein the at least two power amplifiers comprise: a first power amplifier and a second power amplifier;
the radio frequency transceiver is respectively connected with the first power amplifier and the second power amplifier, and is specifically configured to send a first carrier signal to the first power amplifier through a first radio frequency path and send a second carrier signal to the second power amplifier through a second radio frequency path.
6. The mobile terminal of claim 5, wherein the selection switch is a double pole double throw switch.
7. A power detection method applied to the mobile terminal according to any one of claims 1 to 6, comprising:
determining a target carrier signal;
and controlling a target radio frequency path corresponding to the target carrier signal to be conducted with an antenna connected with the directional coupler.
8. The power detection method of claim 7, further comprising:
receiving target transmitting power of a target carrier signal required by a base station during inter-band uplink carrier aggregation;
and controlling a target radio frequency channel corresponding to the target carrier signal to be communicated with a power detection circuit according to the target transmitting power.
9. The power detection method according to claim 8, wherein the step of receiving the target transmission power of the target carrier signal required by the base station during the inter-band uplink carrier aggregation comprises:
receiving a first target transmitting frequency of a first carrier signal required by a base station during inter-band uplink carrier aggregation;
according to the target transmitting power, controlling a target radio frequency path corresponding to the target carrier signal to be conducted with a power detection circuit, comprising:
and controlling a selection switch to conduct a first radio frequency channel and a power detection circuit according to the first target transmitting frequency.
10. The power detection method according to claim 8, wherein the step of receiving the target transmission power of the target carrier signal required by the base station during the inter-band uplink carrier aggregation comprises:
receiving a second target transmitting frequency of a second carrier signal required by the base station during the inter-band uplink carrier aggregation;
according to the target transmitting power, controlling a target radio frequency access corresponding to the target carrier signal to be conducted with a power detection circuit, and the method comprises the following steps:
and controlling a selection switch to conduct a second radio frequency channel and the power detection circuit according to the second target transmitting frequency.
11. A mobile terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements the steps of the power detection method according to any one of claims 7 to 10.
12. 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 detection method according to any one of claims 7 to 10.
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| CN201811288202.5A CN109347508B (en) | 2018-10-31 | 2018-10-31 | Mobile terminal and power detection method |
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| CN201811288202.5A CN109347508B (en) | 2018-10-31 | 2018-10-31 | Mobile terminal and power detection method |
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| CN110166146B (en) * | 2019-04-25 | 2021-05-07 | 维沃移动通信有限公司 | Power detection circuit and terminal |
| CN110190916B (en) * | 2019-04-25 | 2021-03-23 | 维沃移动通信有限公司 | Power detection circuit and terminal |
| CN110336622A (en) * | 2019-06-27 | 2019-10-15 | 维沃移动通信有限公司 | Emit link protection method and mobile terminal |
| CN110336623B (en) * | 2019-07-22 | 2022-03-04 | 维沃移动通信有限公司 | Power detection method and device and mobile terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201629739U (en) * | 2010-02-04 | 2010-11-10 | 华为终端有限公司 | Switching device and wireless terminal |
| US8699975B1 (en) * | 2012-02-01 | 2014-04-15 | Triquint Semiconductor, Inc. | Directional coupler architecture for radio frequency power amplifier |
| CN108112092B (en) * | 2014-09-28 | 2021-04-30 | 安科讯(福建)科技有限公司 | LTE wireless network card terminal equipment |
| KR101988406B1 (en) * | 2015-06-26 | 2019-06-12 | 스카이워크스 솔루션즈, 인코포레이티드 | Power detection of individual carrier of aggregated carrier |
| CN107516771A (en) * | 2017-08-16 | 2017-12-26 | 上海摩软通讯技术有限公司 | Mobile terminal and its antenna system |
| CN107425873A (en) * | 2017-08-31 | 2017-12-01 | 锐石创芯（厦门）科技有限公司 | Radio frequency front-end device and the electronic equipment for including it |
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