CN111565078B - Channel detection method in frequency division duplex mode, radio frequency circuit and electronic equipment - Google Patents
Channel detection method in frequency division duplex mode, radio frequency circuit and electronic equipment Download PDFInfo
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- CN111565078B CN111565078B CN202010440887.1A CN202010440887A CN111565078B CN 111565078 B CN111565078 B CN 111565078B CN 202010440887 A CN202010440887 A CN 202010440887A CN 111565078 B CN111565078 B CN 111565078B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
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- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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Abstract
The invention provides a channel detection method in a frequency division duplex mode, a radio frequency circuit and electronic equipment, wherein the radio frequency circuit comprises: the first radio frequency module and the second radio frequency module are respectively connected with the first end of the switch module; at least two antennas connected with the second end of the switch module; the antennas connected with the first radio frequency module and the second radio frequency module through the switch module are different; the receiving frequency of the first frequency band in which the first radio frequency module works and the transmitting frequency of the second frequency band in which the second radio frequency module works are at least partially overlapped. When the downlink channel detection of the first frequency band is carried out in the frequency division duplex mode, the second radio frequency module is connected with the downlink antenna of the first frequency band, the first radio frequency module is switched to other antennas, and the second frequency band with frequency overlapping with the first frequency band is used for sending SRS signals, so that the downlink channel quality evaluation of the first frequency band is realized, and the downlink resource allocation is adjusted.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a channel detection method in a frequency division duplex mode, a radio frequency circuit, and an electronic device.
Background
Mobile devices have become indispensable tools in daily life of users, and with the evolution of streaming media, people tend to have high-volume flows such as high-definition live broadcast and video. As is known, 5G networks and the like support beamforming techniques, and can transmit directionally to a terminal. For directional transmission, the base station first detects the position of the terminal, the quality of the transmission path, etc., so that the resources of the base station are more accurately allocated to each terminal. The terminal transmits SRS information, which is one of the ways for the base station to detect the terminal position and channel quality. For FDD (frequency division duplex) with different uplink and downlink frequencies, the downlink channel cannot be estimated truly and effectively by using the uplink channel, and the FDD cannot enable the SRS function to enhance throughput.
Disclosure of Invention
The embodiment of the invention provides a method for estimating a downlink channel by using an uplink channel in a frequency division duplex mode.
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 radio frequency circuit, including:
The first radio frequency module and the second radio frequency module are respectively connected with the first end of the switch module;
the at least two antennas are connected with the second end of the switch module;
the antennas connected with the first radio frequency module and the second radio frequency module through the switch module are different;
the receiving frequency of the first frequency band in which the first radio frequency module works and the transmitting frequency of the second frequency band in which the second radio frequency module works are at least partially overlapped in frequency.
In a second aspect, an embodiment of the present invention further provides a channel detection method in a frequency division duplex mode, including:
under the condition of detecting a downlink channel of a first frequency band, sending a Sounding Reference Signal (SRS) through an uplink channel of a second frequency band, so that a base station side detects the downlink channel of the first frequency band according to the SRS;
wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
the processing module is used for sending a Sounding Reference Signal (SRS) through an uplink channel of a second frequency band under the condition of detecting a downlink channel of a first frequency band, so that a base station side detects the downlink channel of the first frequency band according to the SRS;
Wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
In a fourth aspect, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, and when executed by the processor, the computer program implements the steps of the channel detection method in the frequency division duplex mode as described above.
In a fifth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps of the method for detecting a channel in a frequency division duplex mode as described above are implemented.
In the embodiment of the invention, when the downlink channel detection of the first frequency band is carried out in the frequency division duplex mode, the switch module can be used for connecting the second radio frequency module corresponding to the second frequency band with the downlink antenna of the first frequency band and switching the first radio frequency module corresponding to the first frequency band to other antennas, so that the SRS signal of the first frequency band can be sent by using the second frequency band with frequency overlapping with the first frequency band, the downlink channel quality evaluation of the first frequency band is realized, and the configuration of downlink resources is adjusted to achieve the effect of improving the throughput.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart illustrating a method for detecting a channel in a frequency division duplex mode according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an embodiment of a RF circuit;
FIG. 3 is a second schematic diagram of an RF circuit according to a second embodiment of the present invention;
FIG. 4 is a third schematic diagram of an RF circuit according to an embodiment of the present invention;
FIG. 5 is a block diagram of an electronic device according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of an electronic device according to another 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.
As shown in fig. 1, the method for detecting a channel in a frequency division duplex mode according to the embodiment of the present invention includes:
wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
In this embodiment, because the uplink frequency and the downlink frequency are different in the frequency division duplex mode, when the first frequency band downlink channel is detected, a detection result obtained by using the sounding reference signal SRS of the uplink channel is inaccurate, and then the SRS signal of the first frequency band can be sent by using the second frequency band having frequency overlapping with the first frequency band, so as to achieve quality evaluation of the downlink channel of the first frequency band, thereby adjusting the configuration of the downlink resource to achieve the effect of improving throughput.
There is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band, for example: the first frequency band is an N7 frequency band, and the uplink operating frequency band is: 2500MHZ-2570MHZ, the working frequency band of the down link is: 2620MHZ to 2690 MHZ; the second frequency band is an N41 frequency band, and the uplink operating frequency band is: 2496MHZ-2690MHZ, the working frequency band of the down link is: 2496MHZ-2690 MHZ. The downlink frequency of the N7 frequency band is partially overlapped with the uplink frequency of the N41 frequency band, so that when the downlink channel detection is performed on the N7 frequency band, the SRS signal can be sent through the uplink channel of the N41 frequency band, and the base station realizes the quality evaluation of the downlink channel of the N7 frequency band through the SRS signal.
Optionally, the step 101 includes:
under the condition of carrying out channel detection on the downlink target antenna of the first frequency band, controlling a second radio frequency module corresponding to the second frequency band to be connected with the target antenna, and controlling a first radio frequency module corresponding to the first frequency band to be connected with other antennas except the target antenna;
and transmitting the Sounding Reference Signal (SRS) by using the carrier frequency which is overlapped with the first frequency band in the second frequency band.
In this embodiment, taking the target antenna as the first antenna as an example, when performing channel detection on the first frequency band downlink first antenna, the second radio frequency module corresponding to the second frequency band is controlled to be connected to the first antenna, and at this time, in order to ensure normal communication of the first frequency band fdd, the transceiver unit of the first frequency band needs to be switched to other antennas except the first antenna. And sending an SRS signal through the first antenna by using the frequency of the overlapping part of the second frequency band and the first frequency band, so that the base station can realize channel detection on the first downlink antenna of the first frequency band according to the SRS signal to obtain an accurate detection result, thereby adjusting downlink resource allocation and enhancing throughput.
As shown in fig. 2, an embodiment of the present invention further provides a radio frequency circuit, including:
the radio frequency module comprises a first radio frequency module 1 and a second radio frequency module 2, wherein the first radio frequency module 1 and the second radio frequency module 2 are respectively connected with a first end of a switch module;
the at least two antennas are connected with the second end of the switch module;
the antennas connected with the first radio frequency module 1 and the second radio frequency module 2 through the switch module 3 are different;
at least partial frequency overlapping exists between the receiving frequency of the first frequency band in which the first radio frequency module 1 works and the transmitting frequency of the second frequency band in which the second radio frequency module 2 works.
In this embodiment, the first rf module 1 is a transceiver unit of a first frequency band, and the second rf module 2 is a transceiver unit of a second frequency band. The first radio frequency module 1 and the second radio frequency module 2 are respectively connected with the switch module, and the other end of the switch module is connected with a plurality of antennas. The first radio frequency module 1 and the second radio frequency module 2 are different in antenna connected through the switch module 3, and the switch module is used for switching the antenna connected with the first radio frequency module 1 and the second radio frequency module 2.
At least partial frequency overlapping exists between the receiving frequency of the first frequency band in which the first radio frequency module 1 works and the transmitting frequency of the second frequency band in which the second radio frequency module 2 works. Taking the first frequency band as an N7 frequency band and the second frequency band as an N41 frequency band as an example, the downlink frequency of the N7 frequency band and the uplink frequency of the N41 frequency band are partially overlapped. In the frequency division duplex mode, when downlink channel detection is carried out on a first frequency band, a second radio frequency module 2 corresponding to a second frequency band can be connected with a first frequency band downlink antenna to be detected through switching of the switch module, and the first radio frequency module 1 corresponding to the first frequency band is switched to other antennas through the switch module, so that an SRS signal of the first frequency band can be sent by the second frequency band with frequency overlapping with the first frequency band, downlink channel quality assessment on the first frequency band is realized, downlink resource configuration is adjusted, the effect of improving throughput is achieved, and normal communication of the first frequency band is not affected.
In the embodiment of the invention, when the downlink channel detection of the first frequency band is carried out in the frequency division duplex mode, the switch module can be used for connecting the second radio frequency module corresponding to the second frequency band with the downlink antenna of the first frequency band and switching the first radio frequency module corresponding to the first frequency band to other antennas, so that the SRS signal of the first frequency band can be sent by using the second frequency band with frequency overlapping with the first frequency band, the downlink channel quality evaluation of the first frequency band is realized, and the configuration of downlink resources is adjusted to achieve the effect of improving the throughput.
Optionally, as shown in fig. 3, the switch module includes a first switch 31, and the first radio frequency module 1 is connected to a first interface of the first switch 31; the second rf module 2 is connected to the second interface of the first switch 31; at least two contacts of the first switch 31 are connected to the at least two antennas, respectively.
In this embodiment, the first switch 31 may be a double-pole four-throw switch, that is, includes two interfaces and four connecting contacts, and the number of the antennas is four, and the antennas are respectively connected to the four contacts. The first rf module 1 is connected to the first interface K1, the second rf module 2 is connected to the second interface K2, the first contact a of the first switch 31 is connected to the first antenna ANT1, the second contact b is connected to the second antenna ANT2, the third contact c is connected to the third antenna ANT3, and the fourth contact d is connected to the fourth antenna ANT 4.
Optionally, the radio frequency circuit further comprises: a radio frequency transceiving module 4; the first radio frequency module 1 and the second radio frequency module 2 are respectively connected with the radio frequency transceiving module 4. A first single-pole double-throw switch SW1 is arranged on a connection line between the second contact b and the second antenna ANT2, one contact of the single-pole double-throw switch SW1 is connected with the second contact b, and the other contact is connected with the radio frequency transceiver module 4; a second single-pole double-throw switch SW2 is provided on a connection line between the third contact c and the third antenna ANT3, one contact of the second single-pole double-throw switch SW2 is connected to the third contact c, and the other contact of the second single-pole double-throw switch SW2 is connected to the rf transceiver module 4; a third single-pole double-throw switch SW3 is arranged on a connection line between the fourth contact d and the fourth antenna ANT4, one contact of the third single-pole double-throw switch SW3 is connected with the fourth contact d, and the other contact of the third single-pole double-throw switch SW3 is connected with the radio frequency transceiver module 4; a Radio Frequency Front End (RFFE) is disposed on a connection line between the first single-pole double-throw switch SW1, the second single-pole double-throw switch SW2, the third single-pole double-throw switch SW3 and the Radio Frequency transceiver module 4.
Taking the first frequency band as N7 frequency band and the second frequency band as N41 frequency band as an example, the working process of the radio frequency circuit in fig. 3 is described through a specific embodiment, then the working frequency band of the first radio frequency module 1 in fig. 3 is N7 frequency band, and the working frequency band of the second radio frequency module 2 is N41 frequency band.
When the N7 downlink ANT1 SRS is performed, the second radio frequency module 2 corresponding to the N41 is connected to the first antenna ANT1 by switching the first switch 31, and at this time, in order to ensure normal communication of the N7 FDD, the first radio frequency module 1 corresponding to the N7 is switched to other antennas (ANT2/ANT3/ANT4) by the first switch 31;
when the N7 downlink ANT2 SRS is performed, the second rf module 2 corresponding to N41 is connected to the second antenna ANT2 by switching the first switch 31, and at this time, in order to ensure normal communication of N7 FDD, the first rf module 1 corresponding to N7 is switched to another antenna (ANT1 or ANT3 or ANT4) by the first switch 31;
when the N7 downlink ANT3 SRS is performed, the second rf module 2 corresponding to N41 is connected to the third antenna ANT3 by switching the first switch 31, and at this time, in order to ensure normal communication of N7 FDD, the first rf module 1 corresponding to N7 is switched to another antenna (ANT1 or ANT2 or ANT4) by the first switch 31;
when the N7 downlink ANT4 SRS is performed, the second rf module 2 corresponding to N41 is connected to the fourth antenna ANT4 by switching the first switch 31, and at this time, in order to ensure normal communication of the N7 FDD, the first rf module 1 corresponding to N7 is switched to another antenna (ANT1 or ANT2 or ANT3) by the first switch 31.
In this embodiment, when detecting a downlink target antenna in an N7 frequency band, the second radio frequency module 2 corresponding to the N41 frequency band is connected to the target antenna by switching the first switch 31, and the first radio frequency module 1 corresponding to the N7 frequency band is switched to be connected to other antennas, so that an SRS signal in an N7 frequency band can be sent in the N41 frequency band, thereby implementing quality evaluation of a downlink channel in the N7 frequency band, and adjusting the configuration of downlink resources to achieve the effect of improving throughput.
Alternatively, as shown in fig. 4, the switch module includes a second switch 32 and a third switch 33; the first radio frequency module 1 is connected to a first interface of the third switch 33, and a first contact of the third switch 33 is connected to a first antenna; the second rf module 2 is connected to an interface of the second switch 32, and a first contact of the second switch 32 is connected to a second interface of the third switch 33; the other contacts of the second switch 32 except the first contact are connected to the other antennas except the first antenna, respectively.
Optionally, the switch module further comprises a fourth switch 34; the second contact of the third switch 33 is connected to the first contact of the fourth switch 34, and the interface of the fourth switch 34 is connected to one of the other antennas except the first antenna. The fourth switch 34 is disposed on a connection line between the second switch 32 and any one of the antennas other than the first antenna.
In this embodiment, the second switch 32 may be a single-pole four-throw switch, that is, it includes an interface and four connecting contacts, and the number of the antennas is four, and the antennas are respectively connected to the four contacts; the third switch 33 is a double-pole double-throw switch, i.e. comprises two interfaces and two contacts. Wherein, the first radio frequency module 1 is connected to the first interface L1 of the third switch 33, and the first contact e of the third switch 33 is connected to the first antenna ANT 1; the second rf module 2 is connected to the interface of the second switch 32, and the first contact h of the second switch 32 is connected to the second interface L2 of the third switch 33; the second contact i, the third contact j, and the fourth contact k of the second switch 32 are connected to the second antenna ANT2, the third antenna ANT3, and the fourth antenna ANT4, respectively.
A first single-pole double-throw switch SW1 is arranged on a connection line between the second contact i and the second antenna ANT2, one contact of the single-pole double-throw switch SW1 is connected with the second contact i, and the other contact is connected with the radio frequency transceiver module 4; a second single-pole double-throw switch SW2 is arranged on a connection line between the third contact j and the third antenna ANT3, one contact of the second single-pole double-throw switch SW2 is connected with the third contact j, and the other contact of the second single-pole double-throw switch SW2 is connected with the radio frequency transceiver module 4; a third single-pole double-throw switch SW3 is arranged on a connection line between the fourth contact k and the fourth antenna ANT4, one contact of the third single-pole double-throw switch SW3 is connected with the fourth contact k, and the other contact of the third single-pole double-throw switch SW3 is connected with the radio frequency transceiver module 4; the connection lines between the first single-pole double-throw switch SW1, the second single-pole double-throw switch SW2, the third single-pole double-throw switch SW3 and the rf transceiver module 4 are all provided with an rf front end RFFE.
The fourth switch 34 may be a single-pole double-throw switch, i.e. having one interface M1 and two contacts M and n, the second contact f of the third switch 33 being connected to the first contact M of the fourth switch 34, the interface M1 of the fourth switch 34 being connected to one of the other antennas than the first antenna. Alternatively, the fourth switch 34 may be provided on a connection line between the second switch 32 and any other antenna than the first antenna. It should be noted that, in order to keep the normal operating path insertion loss of the N7 frequency band to a minimum, the fourth switch 34 can only select one of the antenna path designs.
Taking the fourth switch 34 as an example, which is disposed on the connection line between the second switch 32 and the second antenna, as shown in fig. 4, the first contact M of the fourth switch 34 is connected to the second contact f of the third switch 33, the second contact n of the fourth switch 34 is connected to the interface of the single-pole double-throw switch SW1, and the interface M1 of the fourth switch 34 is connected to the second antenna ANT 2. It should be noted that the fourth switch 34 may also be disposed on a connection line between the second switch 32 and the third antenna or the fourth antenna, and connections of the contacts and interfaces are similar to those in this embodiment, which is not described herein again.
Taking the first frequency band as the N7 frequency band, the second frequency band as the N41 frequency band, the fourth switch 34 is disposed on the connection line between the second switch 32 and the second antenna ANT2 as an example, the working process of the radio frequency circuit in fig. 3 is described through a specific embodiment, and then the working frequency band of the first radio frequency module 1 in the drawing is the N7 frequency band, and the working frequency band of the second radio frequency module 2 is the N41 frequency band.
When the ANT1 SRS is descended from N7, the second radio frequency module 2 corresponding to N41 is connected to the first antenna ANT1 by switching the second switch 32 and the third switch 33, and at this time, in order to ensure normal communication of N7 FDD, the first radio frequency module 1 corresponding to N7 is switched to another antenna (ANT2 or ANT3 or ANT4) by switching the third switch 33 and the fourth switch 34;
when the ANT2 SRS is transmitted from the N7 downstream, the second switch 32 and the fourth switch 34 connect the second radio frequency module 2 corresponding to the N41 to the ANT2, and at this time, in order to ensure normal communication of the N7 FDD, the first radio frequency module 1 corresponding to the N7 is switched and held on the antenna ANT1 through the third switch 33;
when the ANT3 SRS is descended from N7, the second radio frequency module 2 corresponding to N41 is connected to the ANT3 through the second switch 32;
when the ANT4 SRS is performed downstream from N7, the second radio frequency module 2 corresponding to N41 is connected to the ANT4 through the second switch 32.
In this embodiment, when performing channel detection on a downlink target antenna in an N7 frequency band, the second radio frequency module 2 corresponding to the N41 frequency band is connected to the target antenna by switching the second switch 32, the third switch 33, and the fourth switch 34, and an SRS signal in the N7 frequency band is sent by using the N41 frequency band, so as to implement quality evaluation on the downlink channel in the N7 frequency band, thereby adjusting the configuration of downlink resources to achieve the effect of improving throughput.
It should be noted that the radio frequency circuit includes, but is not limited to, the circuit structures shown in fig. 3 and fig. 4, and may also be in the form of other switch modules capable of switching the connection antennas of the first radio frequency module 1 and the second radio frequency module 2, which is not described herein again.
In the embodiment of the invention, when the downlink channel detection of the first frequency band is carried out in the frequency division duplex mode, the switch module can be used for connecting the second radio frequency module corresponding to the second frequency band with the downlink antenna of the first frequency band and switching the first radio frequency module corresponding to the first frequency band to other antennas, so that the SRS signal of the first frequency band can be sent by using the second frequency band with frequency overlapping with the first frequency band, the downlink channel quality evaluation of the first frequency band is realized, and the configuration of downlink resources is adjusted to achieve the effect of improving the throughput.
FIG. 5 is a block diagram of an electronic device of one embodiment of the invention. The electronic device 500 shown in fig. 5 comprises a processing module 501.
A processing module 501, configured to send a sounding reference signal SRS through an uplink channel of a second frequency band when detecting a downlink channel of a first frequency band, so that a base station side detects the downlink channel of the first frequency band according to the sounding reference signal SRS;
wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
Optionally, the processing module includes:
a first control unit, configured to control a second radio frequency module corresponding to the second frequency band to be connected to the target antenna and control a first radio frequency module corresponding to the first frequency band to be connected to other antennas except the target antenna under the condition of performing channel detection on the downlink target antenna of the first frequency band;
a first transmitting unit, configured to transmit the sounding reference signal SRS using a carrier frequency in the second frequency band that overlaps with the first frequency band.
The electronic device 500 can implement each process implemented by the electronic device in the method embodiment of fig. 1, and is not described herein again to avoid repetition. In the embodiment of the present invention, in the frequency division duplex mode, when detecting a downlink channel of a first frequency band, an SRS signal of the first frequency band may be sent by using a second frequency band having a frequency overlapping with the first frequency band, so as to achieve quality evaluation of the downlink channel of the first frequency band, thereby adjusting configuration of downlink resources to achieve an effect of improving throughput.
Fig. 6 is a schematic diagram of a hardware structure of an electronic device for implementing various embodiments of the present invention, where the electronic device 600 includes, but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 608, a memory 609, a processor 610, and a power supply 611. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 6 does not constitute a limitation of the electronic device, and that the electronic device may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
The processor 610 is configured to, in a case of performing detection on a downlink channel of a first frequency band, send a sounding reference signal SRS through an uplink channel of a second frequency band, so that a base station side detects the downlink channel of the first frequency band according to the sounding reference signal SRS;
wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
Therefore, when the electronic device performs downlink channel detection of the first frequency band in the frequency division duplex mode, the switch module can be used for connecting the second radio frequency module corresponding to the second frequency band with the downlink antenna of the first frequency band and switching the first radio frequency module corresponding to the first frequency band to other antennas, so that the SRS signal of the first frequency band can be sent by using the second frequency band with frequency overlapping with the first frequency band, the downlink channel quality assessment of the first frequency band is realized, and the configuration of downlink resources is adjusted to achieve the effect of improving the throughput.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 601 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 610; in addition, uplink data is transmitted to the base station. In general, radio frequency unit 601 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Further, the radio frequency unit 601 may also communicate with a network and other devices through a wireless communication system.
The electronic device provides wireless broadband internet access to the user via the network module 602, such as assisting the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.
The audio output unit 603 may convert audio data received by the radio frequency unit 601 or the network module 602 or stored in the memory 606 into an audio signal and output as sound. Also, the audio output unit 603 can provide audio output related to a specific function performed by the electronic apparatus 600 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 603 includes a speaker, a buzzer, a receiver, and the like.
The input unit 604 is used to receive audio or video signals. The input Unit 604 may include a Graphics Processing Unit (GPU) 6041 and a microphone 6042, and the Graphics processor 6041 processes image data of a still picture or video obtained by an image capturing apparatus (such as a camera) in a video capture mode or an image capture mode. The processed image frames may be displayed on the display unit 606. The image frames processed by the graphic processor 6041 may be stored in the memory 606 (or other storage medium) or transmitted via the radio frequency unit 601 or the network module 602. The microphone 6042 can receive sound, and can process such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 601 in case of the phone call mode.
The electronic device 600 also includes at least one sensor 605, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 6061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 6061 and/or the backlight when the electronic apparatus 600 is moved to the ear. As one type of motion sensor, an accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of an electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 605 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 606 is used to display information input by the user or information provided to the user. The Display unit 606 may include a Display panel 6061, and the Display panel 6061 may be configured by a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 607 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the electronic device. Specifically, the user input unit 607 includes a touch panel 6071 and other input devices 6072. Touch panel 6071, also referred to as a touch screen, may collect touch operations by a user on or near it (e.g., operations by a user on or near touch panel 6071 using a finger, stylus, or any suitable object or accessory). The touch panel 6071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 610, receives a command from the processor 610, and executes the command. In addition, the touch panel 6071 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 607 may include other input devices 6072 in addition to the touch panel 6071. Specifically, the other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a track ball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 6071 can be overlaid on the display panel 6061, and when the touch panel 6071 detects a touch operation thereon or nearby, the touch operation can be transmitted to the processor 610 to determine the type of the touch event, and then the processor 610 can provide a corresponding visual output on the display panel 6061 according to the type of the touch event. Although in fig. 6, the touch panel 6071 and the display panel 6061 are two independent components to implement the input and output functions of the electronic device, in some embodiments, the touch panel 6071 and the display panel 6061 may be integrated to implement the input and output functions of the electronic device, which is not limited herein.
The interface unit 608 is an interface for connecting an external device to the electronic apparatus 600. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 608 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic apparatus 600 or may be used to transmit data between the electronic apparatus 600 and an external device.
The memory 609 may be used to store software programs as well as various data. The memory 609 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, etc. Further, the memory 609 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 610 is a control center of the electronic device, connects various parts of the whole electronic device by using various interfaces and lines, performs various functions of the electronic device and processes data by running or executing software programs and/or modules stored in the memory 609, and calling data stored in the memory 609, thereby performing overall monitoring of the electronic device. Processor 610 may include one or more processing units; preferably, the processor 610 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 the processor 610.
The electronic device 600 may further comprise a power supply 611 (e.g., a battery) for supplying power to the various components, and preferably, the power supply 611 is logically connected to the processor 610 via a power management system, so that functions of managing charging, discharging, and power consumption are performed via the power management system.
In addition, the electronic device 600 includes some functional modules that are not shown, and are not described in detail here.
Preferably, an embodiment of the present invention further provides an electronic device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, and when the computer program is executed by the processor, the computer program implements each process of the above channel detection method in the frequency division duplex mode, and can achieve the same technical effect, and in order to avoid repetition, the details are not described here again.
The embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the above-mentioned channel detection method in the frequency division duplex mode, and can achieve the same technical effect, and is not described herein again to avoid repetition. 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 identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the 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 particular illustrative embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalent arrangements, and equivalents thereof, which may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A channel detection method in a frequency division duplex mode is applied to a radio frequency circuit, and is characterized in that the radio frequency circuit comprises:
the radio frequency control circuit comprises a first radio frequency module (1) and a second radio frequency module (2), wherein the first radio frequency module (1) and the second radio frequency module (2) are respectively connected with a first end of a switch module (3);
at least two antennas connected with the second end of the switch module (3);
the antennas connected with the first radio frequency module (1) and the second radio frequency module (2) through the switch module (3) are different;
wherein, the receiving frequency of the first frequency band in which the first radio frequency module (1) works and the transmitting frequency of the second frequency band in which the second radio frequency module (2) works have at least partial frequency overlap;
the method comprises the following steps:
Under the condition of detecting a downlink channel of a first frequency band, sending a Sounding Reference Signal (SRS) through an uplink channel of a second frequency band, so that a base station side detects the downlink channel of the first frequency band according to the SRS.
2. The method according to claim 1, characterized in that the switch module (3) comprises a first switch (31), the first radio frequency module (1) being connected with a first interface of the first switch (31);
the second radio frequency module (2) is connected with a second interface of the first switch (31);
at least two contacts of the first switch (31) are connected with the at least two antennas respectively.
3. Method according to claim 1, characterized in that the switch module (3) comprises a second switch (32) and a third switch (33);
the first radio frequency module (1) is connected with a first interface of the third switch (33), and a first contact of the third switch (33) is connected with a first antenna;
the second radio frequency module (2) is connected with an interface of the second switch (32), and a first contact of the second switch (32) is connected with a second interface of the third switch (33);
the other contacts of the second switch (32) except the first contact are respectively connected with other antennas except the first antenna.
4. A method according to claim 3, characterized in that the switch module (3) further comprises a fourth switch (34);
the second contact of the third switch (33) is connected with the first contact of the fourth switch (34), and the interface of the fourth switch (34) is connected with one of the other antennas except the first antenna.
5. The method according to claim 4, characterized in that the fourth switch (34) is arranged on the connection line of the second switch (32) to any other antenna than the first antenna.
6. The method of claim 1, further comprising: a radio frequency transceiver module (4);
the first radio frequency module (1) and the second radio frequency module (2) are respectively connected with the radio frequency transceiving module (4).
7. The method of claim 1, wherein the transmitting Sounding Reference Signal (SRS) through the uplink channel of the second frequency band when the downlink channel detection of the first frequency band is performed comprises:
under the condition of carrying out channel detection on the downlink target antenna of the first frequency band, controlling a second radio frequency module corresponding to the second frequency band to be connected with the target antenna, and controlling a first radio frequency module corresponding to the first frequency band to be connected with other antennas except the target antenna;
And transmitting the Sounding Reference Signal (SRS) by using the carrier frequency which is overlapped with the first frequency band in the second frequency band.
8. An electronic device, comprising:
a radio frequency circuit, the radio frequency circuit comprising:
the radio frequency control circuit comprises a first radio frequency module (1) and a second radio frequency module (2), wherein the first radio frequency module (1) and the second radio frequency module (2) are respectively connected with a first end of a switch module (3);
at least two antennas connected with the second end of the switch module (3);
the antennas connected with the first radio frequency module (1) and the second radio frequency module (2) through the switch module (3) are different;
the processing module is used for sending a Sounding Reference Signal (SRS) through an uplink channel of a second frequency band under the condition of detecting a downlink channel of a first frequency band, so that a base station side detects the downlink channel of the first frequency band according to the SRS;
wherein there is at least partial frequency overlap between the receiving frequency of the first frequency band and the transmitting frequency of the second frequency band.
9. The electronic device of claim 8, wherein the processing module comprises:
a first control unit, configured to control a second radio frequency module corresponding to the second frequency band to be connected to the target antenna and control a first radio frequency module corresponding to the first frequency band to be connected to other antennas except the target antenna under the condition of performing channel detection on the downlink target antenna of the first frequency band;
A first transmitting unit, configured to transmit the sounding reference signal SRS using a carrier frequency in the second frequency band that overlaps with the first frequency band.
10. An electronic device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the frequency division duplex mode channel detection method according to any of claims 1 to 7.
11. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the frequency division duplex mode channel detection method according to any of claims 1 to 7.
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| CN112350744B (en) * | 2020-10-30 | 2023-02-03 | 维沃移动通信有限公司 | Antenna switching method and device, signal transceiving circuit and electronic equipment |
| CN114915300B (en) * | 2021-02-09 | 2023-09-19 | 北京小米移动软件有限公司 | Antenna module, terminal equipment, antenna adjusting method and device |
| CN113067596B (en) * | 2021-03-15 | 2022-08-26 | 维沃移动通信有限公司 | Radio frequency structure and electronic equipment |
| CN113489555B (en) * | 2021-08-10 | 2023-04-18 | 上海闻泰信息技术有限公司 | Channel quality detection terminal and electronic equipment |
| CN113938156B (en) * | 2021-09-27 | 2023-02-03 | 青岛海信移动通信技术股份有限公司 | Signal channel switching method and device |
| CN114157314A (en) * | 2021-11-16 | 2022-03-08 | 中国电子科技集团公司第四十一研究所 | Reconfigurable electromagnetic spectrum monitoring device and method |
| CN114666027B (en) * | 2022-05-17 | 2022-08-19 | 深圳小米通讯技术有限公司 | Message transmission method and device, electronic equipment and readable storage medium |
| CN115133950B (en) * | 2022-06-29 | 2024-03-26 | 联想(北京)有限公司 | Signal receiving and transmitting circuit, measuring method and device |
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