CN110636530A - Method for processing adjacent channel interference and terminal equipment - Google Patents
Method for processing adjacent channel interference and terminal equipment Download PDFInfo
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- CN110636530A CN110636530A CN201911030142.1A CN201911030142A CN110636530A CN 110636530 A CN110636530 A CN 110636530A CN 201911030142 A CN201911030142 A CN 201911030142A CN 110636530 A CN110636530 A CN 110636530A
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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
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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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
- H04B17/345—Interference values
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an adjacent channel interference processing method, which comprises the following steps: when detecting that terminal equipment is accessed to an LTE network and a WIFI network, determining whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by the terminal equipment; if so, adjusting the initial static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment to a target static working current; the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current. Therefore, when adjacent frequency interference exists between the LTE signal and the WIFI signal received and transmitted by the terminal equipment, the static working current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment is adjusted, so that the aim of effectively reducing the adjacent frequency interference between the LTE signal and the WIFI signal can be fulfilled.
Description
Technical Field
The present invention relates to the field of terminals, and in particular, to a method for processing adjacent channel interference and a terminal device.
Background
The adjacent channel interference is mainly signal interference of adjacent frequency of used signal frequency, and the performance of a receiving filter is not ideal, so that adjacent signals leak into a transmission bandwidth to cause interference.
In the prior art, the influence of adjacent channel interference is generally reduced by increasing the channel interval between the LTE signal and the WIFI signal or reducing the transmission power of the LTE signal, but this may sacrifice part of frequency band resources or reduce the coverage rate of the LTE signal.
Therefore, a more efficient method for processing the adjacent channel interference is needed.
Disclosure of Invention
The embodiment of the invention aims to provide an adjacent channel interference processing method and terminal equipment, which are used for more effectively processing adjacent channel interference.
In a first aspect, a method for processing adjacent channel interference is provided, where the method includes:
when detecting that terminal equipment is accessed to an LTE network and a WIFI network, determining whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by the terminal equipment;
if so, adjusting the initial static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment to a target static working current;
the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
In a second aspect, a terminal device is provided, which includes:
the device comprises a determining module and a judging module, wherein the determining module is used for determining whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by terminal equipment when the terminal equipment is detected to be accessed to an LTE network and a WIFI network;
the adjusting module is used for adjusting the initial static working current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment to a target static working current if the initial static working current is equal to the target static working current;
the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
In a third aspect, a terminal device is provided, where the terminal device includes: 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 method according to the first aspect.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of the method according to the first aspect.
In the embodiment of the invention, when the adjacent channel interference exists between the LTE signal and the WIFI signal which are transmitted and received by the terminal equipment, the static working current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment is adjusted, so that the aim of effectively reducing the adjacent channel interference between the LTE signal and the WIFI signal can be fulfilled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart illustrating an adjacent channel interference processing method according to an embodiment of the present invention;
fig. 2 is an amplitude spectrum diagram of an LTE signal according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a 2.4G WIFI sensitivity testing environment according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating a correspondence between quiescent operating current and spectral emission template metrics, according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating an adjacent channel interference processing method according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flow chart of an adjacent channel interference processing method according to an embodiment of the present invention, and referring to fig. 1, the method may specifically include the following steps:
step 102: when the terminal equipment is detected to be accessed into an LTE network and a WIFI network, whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by the terminal equipment is determined.
Long Term Evolution (LTE) is a Long Term Evolution of Universal Mobile Telecommunications System (UMTS) technical standard established by The 3rd Generation Partnership Project (3 GPP) organization, and is a transition network between a 3G network and a 4G network, commonly referred to as a 3.9G network or a quasi-4G network; a WIreless FIdelity (WIFI) network is a WIreless network which is most widely used at present, and in fact, a wired network signal (for example, a cell broadband) is converted into a WIreless signal for a terminal device (for example, a computer, a mobile phone, etc.) supporting the WIFI technology to receive.
The working frequency range refers to the frequency range of electromagnetic waves in a wireless communication system; the working frequency range of the LTE signal can be any one of B7 (the working frequency range of an uplink is 2500-2570 MHz, the working frequency range of a downlink is 2620-2690 MHz), B38 (the working frequency ranges of the uplink and the downlink are 2570-2620 MHz) and B40 (the working frequency ranges of the uplink and the downlink are 2300-2400 MHz), and the working frequency range of the WIFI signal can be 2.4G (the working frequency ranges of the uplink and the downlink are 2402-2482 MHz).
Based on this, the scheme can determine whether adjacent channel interference exists between the LTE B7 signal and the 2.4G WIFI signal with the adjacent working frequency bands, and also can determine whether adjacent channel interference exists between the LTE B38 signal and the 2.4G WIFI signal with the adjacent working frequency bands, and between the LTE B40 signal and the 2.4G WIFI signal with the adjacent working frequency bands, so that whether adjacent channel interference exists between the signals with the adjacent working frequency bands can be determined more flexibly, and corresponding processing is performed when the adjacent channel interference exists.
The scenario of the adjacent channel interference between the LTE signal and the WIFI signal may include: the transmitting of the LTE signal interferes with the receiving of the WIFI signal, and the transmitting of the WIFI signal interferes with the receiving of the LTE signal; taking the example that the transmission of the LTE B40 signal interferes with the reception of the 2.4G WIFI signal, out-of-band spectrum regeneration occurs when the LTE B40 signal is transmitted, referring to fig. 2, a part of the output power of the LTE B40 signal falls into the region a, and another part falls into the operating frequency band region B of WIFI, so as to interfere with the reception of the 2.4G WIFI signal.
It should be noted that, in step 102, "determining whether there is adjacent channel interference between the LTE signal and the WIFI signal received and transmitted by the terminal device" may be implemented in a manner that:
step S1: determining whether a channel interval between a first working channel of the LTE signal and a second working channel of the WIFI signal is smaller than a preset value;
the working channel is a transmission channel of wireless signals, and one working frequency band can be divided into a plurality of working channels; the channel spacing may be the difference in the center carrier frequencies of the first and second operating channels.
Further, one implementation manner of step S1 may be:
step S11: determining a first working channel of the LTE signal and a second working channel of the WIFI signal according to the channel information of the LTE signal and the channel information of the WIFI signal reported by the modem;
step S12: and determining whether the channel interval of the first working channel and the second working channel is smaller than a preset value.
Step S2: if yes, determining that adjacent channel interference exists; if not, determining that the adjacent channel interference does not exist.
Based on the method, whether the adjacent channel interference exists in the LTE signal and the WIFI signal is determined by judging whether the channel intervals of the LTE signal and the WIFI signal are adjacent, and the determination of the adjacent channel interference is more convenient.
It should be noted that, before step 102, the method further includes:
step S1': and setting the initial static working current of the power amplifier based on the working frequency band of the LTE signal and the adjacent channel leakage ratio ACLR index of the power amplifier.
The Adjacent Channel Leakage Ratio (ACLR) index may be used to measure an influence characteristic of a radio frequency device (e.g., a power amplifier) on an operating Channel outside a main operating frequency, or an out-of-band radiation characteristic, a preset protocol specification provides a range of the ACLR index, and the smaller the ACLR index is, the better the range is.
Based on this, the initial static operating current of the power amplifier is set according to the working frequency band of the LTE signal and the ACLR index, so that the accuracy of the set initial static operating current can be improved.
Further, one implementation manner of step S1' may be:
step S11': determining a second target static working current corresponding to the working frequency band of the LTE signal;
step S12': setting an initial quiescent operating current of the power amplifier to the second target quiescent operating current;
the static operating Current (ICQ) of the power amplifier may be a Current of the power amplifier in a no-signal state or a standby state, the second target static operating Current is a static operating Current corresponding to an optimal value of the ACLR index in the operating frequency band, and the ACLR index is used to represent communication performance of the LTE network; the ACLR index may specifically be an Evolved universal Terrestrial Radio Access value (E-UTRA) and a universal Terrestrial Radio Access value (umats Terrestrial Radio Access, UTRA) in the LTE network; the E-UTRA may be used to describe interference between base stations or terminal devices within the same LTE network, and the UTRA value may be used to describe interference between the LTE network and a Universal Mobile Telecommunications System (UMTS) network (i.e., a 3G network) similar to the LTE network.
Specifically, the steps S11 'and S12' may be exemplified as follows:
table 1 shows the ACLR index of the LTE B40 network when the quiescent operating current of the power amplifier is ICQ1 and ICQ2, respectively, and referring to table 1, since the E-UTRA value, UTRA1 value and UTRA2 value corresponding to ICQ2 are all smaller than the E-UTRA value, UTRA1 value and UTRA2 value corresponding to ICQ1, it is determined that the second target quiescent operating current corresponding to B40 is ICQ2, and the quiescent operating current of the power amplifier is set to ICQ 2.
TABLE 1
Based on this, by setting the static operating current of the power amplifier to the second target static operating current corresponding to the optimal value of the ACLR index under the operating frequency band, the optimal ACLR index can be ensured in a scenario where LTE signals and WIFI signals do not coexist, the communication performance of the LTE network can be ensured to the maximum extent, and the interference between the LTE signals and signals transmitted and received by the same or similar network can be reduced.
Step 104: if so, adjusting the initial static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment to a target static working current;
the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
It should be noted that, one implementation of step 104 may be:
step S1 ″: and adjusting the initial quiescent operating current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment to a target quiescent operating current based on the working frequency band of the LTE signal and the frequency spectrum transmitting template index of the power amplifier.
Based on the method, the static working current of the power amplifier is adjusted from the initial static working current to the target static working current by taking the working frequency band of the LTE signal and the spectrum emission template index as the basis, so that the accuracy of the adjusted static working current can be improved.
One implementation may be:
step S11 ″: determining a first target static working current corresponding to the working frequency band of the LTE signal;
step S12 ″: adjusting an initial quiescent operating current of the power amplifier to the first target quiescent operating current;
the first target static working current is a target static working current corresponding to an optimal value of the spectrum emission template index under the working frequency band, and the spectrum emission template index is used for representing interference values of the LTE signal and the WIFI signal; the preset protocol specification gives the range of the spectrum emission template index, and the smaller the spectrum emission template index in the range, the better the spectrum emission template index is.
For the interference influence magnitudes of the LTE signal and the WIFI signal involved in steps S11 "and S12", it may be specifically determined by the interference values of the LTE B40 signal and the 2.4G WIFI signal measured in the test environment shown in fig. 3, and the smaller the interference value is, the smaller the interference influence of the LTE signal and the WIFI signal is:
assuming that a first working channel of the LTE B40 signal is channel 39150 (center carrier frequency is 2350MHz), and a second working channel of the 2.4G WIFI signal is channel 6 (center carrier frequency is 2437MHz), determining the receiving sensitivity of the CMW270WIFI tester to the 2.4G WIFI signal (the minimum working power required by the CMW270WIFI tester to receive the 2.4G WIFI signal) when the CMW500LTE integrated tester transmits the LTE B40 signal with minimum power and maximum power, respectively; taking path 1 attenuation of 10dB as an example, the test data are shown in tables 2 and 3 below.
Table 2 shows interference values of the LTE B40 signal on the WIFI signal when the quiescent operating current of the power amplifier is the second target quiescent operating current; table 3 shows interference values of the LTEB40 signal on the 2.4G WIFI signal when the quiescent operating current of the power amplifier is the first target quiescent operating current; therefore, when the quiescent operating current of the power amplifier is the first target quiescent operating current corresponding to the optimal value of the spectrum emission template index, the interference of the LTE B40 signal on the 2.4G WIFI signal is small.
TABLE 2
TABLE 3
Assuming that the operating frequency band is B40, the step S11 'and the step S12' may be specifically exemplified as:
referring to fig. 4, since the spectral emission template index corresponding to ICQ1 is better than the spectral emission template index corresponding to ICQ2, the first target quiescent operating current corresponding to B40 can be determined to be ICQ1 and the quiescent operating current of the power amplifier can be adjusted to ICQ 1.
As can be seen from table 1, when the quiescent current of the power amplifier is adjusted from ICQ2 to ICQ1, the value of the ACLR indicator is increased accordingly (still meeting the predetermined protocol specification).
Based on this, when the adjacent-channel interference exists between the LTE signal and the WIFI signal, the static operating current of the power amplifier is adjusted from the second target static operating current corresponding to the optimal value of the ALCR index under the operating frequency band to the first target static operating current corresponding to the optimal value of the spectrum emission template index under the operating frequency band, so that the hardware cost is not increased, and the ACLR index of the LTE signal (the ACLR index meets the protocol specification requirement) and the receiving performance of 2.4G WIFI (the spectrum emission template index is ensured to be better (the interference of the LTE B40 signal to the 2.4G WIFI signal is ensured) can be ensured at the same time.
Fig. 5 is a schematic flowchart of an adjacent channel interference processing method according to another embodiment of the present invention, and referring to fig. 5, the method may specifically include the following steps:
step 502: and after searching and registering the LTE network, determining that the working frequency band of the LTE network is B40.
It should be noted that, one implementation manner of "determining the operating frequency band of LTE network operating B40" in step 502 may be:
and determining the frequency band information reported by the modem as B40, and determining B40 as the working frequency band of the LTE network.
Step 504: and calling a second target static operating current corresponding to the B40 operating frequency band by default.
The second target static operating current is a static operating current corresponding to the optimal value of the ACLR index in the operating frequency band, and the ACLR index is used for representing the communication performance of the LTE network.
Step 506: and (3) judging a coexistence scene: whether to work in the LTE B40 transmit and 2.4GWIFI receive scenarios at this time; if yes, go to step 508; if not, go to step 504.
Step 508: whether the current LTE B40 working channel is adjacent to a 2.4G WIFI working channel; if yes, go to step 510, otherwise go to step 504.
It should be noted that, one implementation manner of step 508 may be:
determining whether the channel interval between the first working channel of the LTE signal and the second working channel of the WIFI signal is smaller than a preset value, if so, determining that the LTE B40 working channel is adjacent to the 2.4G WIFI working channel; if not, determining that the LTEB40 working channel is not adjacent to the 2.4G WIFI working channel.
Step 510: and calling a first target static operating current corresponding to the B40 operating frequency band.
The first target static working current is a static working current corresponding to an optimal value of the spectrum emission template index under the working frequency band, and the spectrum emission template index is used for representing the interference influence of the LTE signal and the WIFI signal.
Based on the above, when the adjacent channel interference does not exist in the LTE signal and the WIFI signal, the static working current of the power amplifier is adjusted to be the second target static working current by default, so that the ACLR index of the LTE signal is ensured to be better; when adjacent-channel interference exists between the LTE signal and the WIFI signal, the static working current of the power amplifier is adjusted to be the first target static working current, hardware cost does not need to be increased, and the ACLR index of the LTE signal (the ACLR index meets the requirement of protocol specification) and the receiving performance of 2.4 GWIFISI (the spectrum emission template index is ensured to be better (the interference of the LTE B40 signal to the 2.4G WIFI signal is smaller)) can be ensured at the same time.
In addition, for simplicity of explanation, the above-described method embodiments are described as a series of acts or combinations, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts or steps described, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention, and referring to fig. 6, the terminal device may specifically include: a determination module 602 and an adjustment module 604, wherein:
a determining module 602, configured to determine whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by a terminal device when it is detected that the terminal device accesses an LTE network and a WIFI network;
an adjusting module 604, configured to adjust an initial quiescent operating current of a power amplifier of an LTE signal transmitting circuit of the terminal device to a target quiescent operating current if the initial quiescent operating current is equal to the target quiescent operating current; the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
Optionally, the determining module 602 includes:
the determining unit is used for determining whether the channel interval of the first working channel of the LTE signal and the second working channel of the WIFI signal is smaller than a preset value;
if yes, determining that adjacent channel interference exists; if not, determining that the adjacent channel interference does not exist.
Optionally, the adjusting module 604 includes:
and the adjusting unit is used for adjusting the initial static working current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment to a target static working current based on the working frequency band of the LTE signal and the frequency spectrum transmitting template index of the power amplifier.
Optionally, the adjusting unit includes:
the adjusting subunit is configured to determine a first target static operating current corresponding to an operating frequency band of the LTE signal;
adjusting an initial quiescent operating current of the power amplifier to the first target quiescent operating current;
the first target static working current is a target static working current corresponding to an optimal value of the spectrum emission template index under the working frequency band, and the spectrum emission template index is used for representing the interference influence of the LTE signal and the WIFI signal.
Optionally, the terminal device further includes:
and the setting module is used for setting the initial static working current of the power amplifier based on the working frequency band of the LTE signal and the adjacent channel leakage ratio ACLR index of the power amplifier.
Optionally, the setting module includes:
the setting unit is used for determining a second target static working current corresponding to the working frequency band of the LTE signal;
setting an initial quiescent operating current of the power amplifier to the second target quiescent operating current;
the second target static operating current is a static operating current corresponding to the optimal value of the ACLR index in the operating frequency band, and the ACLR index is used for representing the communication performance of the LTE network.
Optionally, an operating frequency band of the LTE signal is any one of B7, B38, and B40, and an operating frequency band of the WIFI signal is 2.4G.
Therefore, in the embodiment, when the adjacent channel interference exists between the LTE signal and the WIFI signal received and transmitted by the terminal device, the quiescent operating current of the power amplifier of the LTE signal transmitting circuit of the terminal device is adjusted, so that the purpose of effectively reducing the adjacent channel interference between the LTE signal and the WIFI signal can be achieved.
The device provided by the embodiment of the present invention can implement each process implemented by the device in the method embodiments of fig. 1 to fig. 5, and is not described herein again to avoid repetition. Further, it should be noted that, among the respective components of the apparatus of the present invention, the components thereof are logically divided according to the functions to be realized, but the present invention is not limited thereto, and the respective components may be newly divided or combined as necessary.
Figure 7 is a schematic diagram of a hardware configuration of a mobile terminal implementing various embodiments of the present invention,
the mobile terminal 700 includes, but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, a processor 710, a power supply 711, and the like. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 7 is not intended to be limiting of mobile terminals, and that a mobile terminal 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 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.
The processor 710 is configured to determine whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by a terminal device when the terminal device is detected to access an LTE network and a WIFI network;
if so, adjusting the initial static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment to a target static working current; the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
When adjacent channel interference exists between an LTE signal and a WIFI signal which are received and transmitted by terminal equipment, the static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment is adjusted, so that the aim of effectively reducing the adjacent channel interference between the LTE signal and the WIFI signal can be fulfilled.
It should be understood that, in the embodiment of the present invention, the radio frequency unit 701 may be used for receiving and sending signals during a message transmission and reception process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 710; in addition, the uplink data is transmitted to the base station. In general, radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 may also communicate with a network and other devices through a wireless communication system.
The mobile terminal provides the user with wireless broadband internet access via the network module 702, such as helping the user send and receive e-mails, browse web pages, and access streaming media.
The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into an audio signal and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the mobile terminal 700 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.
The input unit 704 is used to receive audio or video signals. The input Unit 704 may include a Graphics Processing Unit (GPU) 7041 and a microphone 7042, and the Graphics processor 7041 processes image data of a still picture or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 706. The image frames processed by the graphic processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio unit 701 or the network module 702. The microphone 7042 may receive sounds and may be capable of processing such sounds into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 701 in case of a phone call mode.
The mobile terminal 700 also includes at least one sensor 705, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 7061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 7061 and/or a backlight when the mobile terminal 700 is moved to the ear. As one of the motion sensors, the 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 the mobile terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), and vibration identification related functions (such as pedometer, tapping); the sensors 705 may also include fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., which are not described in detail herein.
The display unit 706 is used to display information input by the user or information provided to the user. The Display unit 706 may include a Display panel 7061, and the Display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The user input unit 707 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072. The touch panel 7071, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 7071 (e.g., operations by a user on or near the touch panel 7071 using a finger, a stylus, or any other suitable object or attachment). The touch panel 7071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 710, receives a command from the processor 710, and executes the command. In addition, the touch panel 7071 can be implemented by various types such as resistive, capacitive, infrared, and surface acoustic wave. The user input unit 707 may include other input devices 7072 in addition to the touch panel 7071. In particular, the other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described herein again.
Further, the touch panel 7071 may be overlaid on the display panel 7061, and when the touch panel 7071 detects a touch operation on or near the touch panel 7071, the touch operation is transmitted to the processor 710 to determine the type of the touch event, and then the processor 710 provides a corresponding visual output on the display panel 7061 according to the type of the touch event. Although the touch panel 7071 and the display panel 7061 are shown in fig. 7 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated to implement the input and output functions of the mobile terminal, which is not limited herein.
The interface unit 708 is an interface through which an external device is connected to the mobile terminal 700. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 708 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 700 or may be used to transmit data between the mobile terminal 700 and external devices.
The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 709 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 710 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 709 and calling data stored in the memory 709, thereby integrally monitoring the mobile terminal. Processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 710.
The mobile terminal 700 may also include a power supply 711 (e.g., a battery) for powering the various components, and the power supply 711 may be logically coupled to the processor 710 via a power management system that may enable managing charging, discharging, and power consumption by the power management system.
In addition, the mobile terminal 700 includes some functional modules that are not shown, and thus will not be described in detail herein.
Preferably, an embodiment of the present invention further provides a terminal device, which includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements each process of the above adjacent channel interference processing method embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
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 adjacent channel interference processing 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 (10)
1. An adjacent channel interference processing method, comprising:
when detecting that terminal equipment is accessed to an LTE network and a WIFI network, determining whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by the terminal equipment;
if so, adjusting the initial static working current of a power amplifier of an LTE signal transmitting circuit of the terminal equipment to a target static working current;
the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
2. The method of claim 1, wherein the determining whether adjacent channel interference exists between LTE signals and WIFI signals transceived by the terminal device comprises:
determining whether a channel interval between a first working channel of the LTE signal and a second working channel of the WIFI signal is smaller than a preset value;
if yes, determining that adjacent channel interference exists; if not, determining that the adjacent channel interference does not exist.
3. The method of claim 1, wherein the adjusting the initial quiescent operating current of the power amplifier of the LTE signal transmission circuit of the terminal device to the target quiescent operating current comprises:
and adjusting the initial quiescent operating current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment to a target quiescent operating current based on the working frequency band of the LTE signal and the frequency spectrum transmitting template index of the power amplifier.
4. The method of claim 3, wherein the adjusting the initial quiescent operating current of the power amplifier of the LTE signal transmitting circuit of the terminal device to the target quiescent operating current based on the operating frequency band of the LTE signal and the spectrum transmission template index of the power amplifier comprises:
determining a first target static working current corresponding to the working frequency band of the LTE signal;
adjusting an initial quiescent operating current of the power amplifier to the first target quiescent operating current;
the first target static working current is a target static working current corresponding to an optimal value of the spectrum emission template index under the working frequency band, and the spectrum emission template index is used for representing interference values of the LTE signal and the WIFI signal.
5. The method of claim 1, wherein before the detecting that the terminal device accesses the LTE network and the WIFI network, further comprising:
and setting the initial static working current of the power amplifier based on the working frequency band of the LTE signal and the adjacent channel leakage ratio ACLR index of the power amplifier.
6. The method of claim 5, wherein setting the initial quiescent operating current of the power amplifier based on the operating frequency band of the LTE signal and an ACLR indicator of an adjacent channel leakage ratio of the power amplifier comprises:
determining a second target static working current corresponding to the working frequency band of the LTE signal;
setting an initial quiescent operating current of the power amplifier to the second target quiescent operating current;
the second target static operating current is a static operating current corresponding to the optimal value of the ACLR index in the operating frequency band, and the ACLR index is used for representing the communication performance of the LTE network.
7. The method of any one of claims 3 to 6, wherein an operating frequency band of the LTE signal is any one of B7, B38 and B40, and an operating frequency band of the WIFI signal is 2.4G.
8. A terminal device, comprising:
the device comprises a determining module and a judging module, wherein the determining module is used for determining whether adjacent channel interference exists between an LTE signal and a WIFI signal received and transmitted by terminal equipment when the terminal equipment is detected to be accessed to an LTE network and a WIFI network;
the adjusting module is used for adjusting the initial static working current of the power amplifier of the LTE signal transmitting circuit of the terminal equipment to a target static working current if the initial static working current is equal to the target static working current;
the static working current is used for representing an interference value between the LTE signal and the WIFI signal, and the interference value corresponding to the target static working current is smaller than the interference value corresponding to the initial static working current.
9. A terminal device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, carries out the steps of the method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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