CN111642003A - Radio frequency interference processing method, electronic device and storage medium - Google Patents
Radio frequency interference processing method, electronic device and storage medium Download PDFInfo
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- CN111642003A CN111642003A CN202010526588.XA CN202010526588A CN111642003A CN 111642003 A CN111642003 A CN 111642003A CN 202010526588 A CN202010526588 A CN 202010526588A CN 111642003 A CN111642003 A CN 111642003A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
Abstract
The invention discloses a processing method of radio frequency interference, electronic equipment and a storage medium, wherein the processing method of the radio frequency interference is applied to the electronic equipment comprising a Wi-Fi module and an LTE module, and the processing method comprises the following steps: the Wi-Fi module acquires the current working frequency band of the LTE module; the Wi-Fi module determines that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module; the Wi-Fi module reduces transmit power. Under the condition that radio frequency interference exists between the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module, the Wi-Fi module greatly reduces the interference of Wi-Fi radio frequency signals in the electronic equipment to an LTE receiving channel by reducing the transmitting power, namely adopting a TPC strategy.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for processing radio frequency interference, an electronic device, and a storage medium.
Background
The plurality of radio frequency modules integrated in one terminal device provides a superior user experience for transmitting and receiving digital content. The Cellular module utilizes the base station to transmit data, thereby ensuring that users can talk and surf the internet at any place. The Wi-Fi (Wireless Fidelity) module uses optical fiber to transmit data, so that high-bandwidth internet access of a user is guaranteed.
However, when these radio frequency transceivers operate in adjacent or overlapping frequency bands simultaneously, radio frequency interference occurs, degrading radio frequency performance. In all coexistence interference scenarios, the 2.4GHz Band of the Wi-Fi network and the Band40 of the LTE (Long term evolution) are the worst case, and are specifically represented as follows: when a call is made through the LTE network, the reception sensitivity of Wi-Fi signals will become abnormal, possibly deteriorating by 60dBm or even dropping. This is unacceptable to the user.
Figure 1 shows the path of a Wi-Fi radio frequency signal interfering with the LTE receive channel. As shown in fig. 1, the main interference paths are: Wi-Fi radio frequency signals emitted from a Wi-Fi chip are radiated out through a Wi-Fi antenna after passing through a Band-Pass Filter (BPF) and a duplexer diplexer, are received by an LTE antenna, and reach a transceiver after passing through a switch and the BPF, so that an LTE receiving module is interfered, and the receiving performance of the LTE receiving module is influenced. The secondary interference path is: Wi-Fi radio frequency signals radiated from the Wi-Fi chip directly enter the transceiver through space coupling, and then interfere with the LTE receiving module.
In view of the above problems, there are two main solutions in the prior art. According to the first scheme, the isolation between the LTE antenna and the Wi-Fi antenna is increased. The scheme is limited by the size of a PCB in the terminal equipment, and the isolation between the LTE antenna and the Wi-Fi antenna is far from eliminating the interference of Wi-Fi radio frequency signals to an LTE receiving channel. And a second scheme is to increase the out-of-band rejection performance of the LTE and Wi-Fi receiving path filters. The scheme is limited by the technology of the filter, coexistence performance can be optimized to a certain extent only when LTE and Wi-Fi work at a far frequency point, and the optimization effect is very little when the LTE and Wi-Fi work at a near frequency point, so that the use requirement of a user cannot be met.
Disclosure of Invention
The technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide a processing method, an electronic device, and a storage medium, which are not limited by the size of a PCB board or the filter technology and can greatly reduce the radio frequency interference of Wi-Fi radio frequency signals on LTE receiving channels.
The invention solves the technical problems through the following technical scheme:
the first aspect of the present invention provides a radio frequency interference processing method, which is applied to an electronic device including a Wi-Fi module and an LTE module, and the processing method includes:
the Wi-Fi module acquires the current working frequency band of the LTE module;
the Wi-Fi module determines that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
the Wi-Fi module reduces transmit power.
Preferably, the step of determining that radio frequency interference exists by the Wi-Fi module according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module specifically includes:
and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
Preferably, the preset combination includes a first combination and a second combination, and the step of reducing the transmission power by the Wi-Fi module specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
Preferably, the Wi-Fi module and the LTE module carry out information interaction through the WCI-2 interface.
A second aspect of the present invention provides an electronic device, including a Wi-Fi module and an LTE module, where the Wi-Fi module includes:
the frequency band acquisition unit is used for acquiring the current working frequency band of the LTE module;
the interference determining unit is used for determining that radio frequency interference exists according to the current working frequency band of the interference determining unit and the current working frequency band of the LTE module;
and the power control unit is used for reducing the transmitting power.
Preferably, the interference determining unit is configured to determine that radio frequency interference exists when a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to a preset combination.
Preferably, the preset combination includes a first combination and a second combination, and the power control unit is specifically configured to determine whether a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to the first combination or the second combination, and if the combination belongs to the first combination, reduce the transmission power by a first power backoff value; if the first combination belongs to the second combination, reducing the transmitting power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
Preferably, the Wi-Fi module and the LTE module perform information interaction through a WCI-2 interface.
A third aspect of the present invention provides a method for processing radio frequency interference, which is applied to an electronic device including a Wi-Fi module and an LTE module, and the method includes:
acquiring the current working frequency bands of a Wi-Fi module and an LTE module;
determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
and controlling the Wi-Fi module to reduce the transmission power.
Preferably, the step of determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module specifically includes:
and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
Preferably, the preset combination includes a first combination and a second combination, and the step of controlling the Wi-Fi module to reduce the transmission power specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
A fourth aspect of the present invention provides an electronic device, including a Wi-Fi module and an LTE module, the electronic device further including a processor configured to:
acquiring the current working frequency bands of a Wi-Fi module and an LTE module;
determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
and controlling the Wi-Fi module to reduce the transmission power.
Preferably, the determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module specifically includes: and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
Preferably, the preset combination comprises a first combination and a second combination, and the processor is further configured to:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
A fifth aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method for processing radio frequency interference according to the first or third aspect.
The positive progress effects of the invention are as follows: under the condition that radio frequency interference exists between the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module, the Wi-Fi module greatly reduces the interference of Wi-Fi radio frequency signals in the electronic equipment to an LTE receiving channel by reducing the transmitting power, namely adopting a TPC (Transmit Power control) strategy.
Drawings
Fig. 1 is a schematic diagram of a path of a Wi-Fi radio frequency signal interfering with an LTE reception channel.
Fig. 2 is a flowchart of a method for processing radio frequency interference according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of a connection structure between a Wi-Fi module and an LTE module according to embodiment 1 of the present invention.
Fig. 4 is a block diagram of an electronic device according to embodiment 2 of the present invention.
Fig. 5 is a block diagram of an electronic device according to embodiment 4 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The electronic equipment in the embodiment of the invention comprises a Wi-Fi module and an LTE module, and can be terminal equipment such as a mobile phone, wearable equipment, a tablet computer and the like. The Wi-Fi module can comprise a Wi-Fi antenna, a duplexer, a band-pass filter BPF, a Wi-Fi chip and the like, and the LTE module can comprise an LTE antenna, a switch, a band-pass filter BPF, a transceiver, an LTE chip and the like.
Example 1
The embodiment provides a processing method of radio frequency interference, which is applied to an electronic device including a Wi-Fi module and an LTE module, and as shown in fig. 2, the processing method includes:
and S101, the Wi-Fi module acquires the current working frequency band of the LTE module.
In an optional implementation mode, the Wi-Fi module and the LTE module perform information interaction through a WCI-2 interface. In step S101, the LTE module sends the current working frequency band to the Wi-Fi module through the WCI-2 interface. In a specific implementation, a Wi-Fi chip in the Wi-Fi module and an LTE chip in the LTE module perform information interaction through a WCI-2 interface, as shown in fig. 3.
And S102, the Wi-Fi module determines that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module.
The method and the device are suitable for scenes that the Wi-Fi module and the LTE module work simultaneously. In one application scenario, a user makes a call over a cellular network while downloading web resources using a Wi-Fi network. In another scenario, a user downloads video resources using a Wi-Fi network while sending a short message over a cellular network.
The radio frequency interference in the present embodiment mainly refers to interference of Wi-Fi radio frequency signals to LTE reception channels. In an optional implementation manner of step S102, if a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to a preset combination, it is determined that radio frequency interference exists.
In specific implementation, a preset combination is set according to a radio frequency interference condition between an LTE module and a Wi-Fi module in electronic equipment.
In a specific example, as shown in table 1, the preset combination includes a combination marked as "√" in table 1, specifically: CH1 of a Wi-Fi channel and CH39550 of an LTE channel, CH4 of a Wi-Fi channel and CH39550 of an LTE channel, CH6 of a Wi-Fi channel and CH39550 of an LTE channel, CH11 of a Wi-Fi channel and CH39550 of an LTE channel, CH1 of a Wi-Fi channel and CH39500 of an LTE channel, CH4 of a Wi-Fi channel and CH39500 of an LTE channel, CH6 of a Wi-Fi channel and CH39500 of an LTE channel, CH1 of a Wi-Fi channel and CH39450 of an LTE channel, CH4 of a Wi-Fi channel and CH39450 of an LTE channel, CH1 of a Wi-Fi channel and CH39350 of an LTE channel, CH1 of a Wi-Fi channel and CH39150 of an LTE channel.
TABLE 1
And if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module does not belong to the preset combination, determining that radio frequency interference does not exist, and normally receiving and transmitting Wi-Fi data by the Wi-Fi module. In the above example, if the combination of the frequency band in which the Wi-Fi module currently operates and the frequency band in which the LTE module currently operates belongs to the combination marked by "x" in table 1, specifically: CH11 of a Wi-Fi channel and CH39500 of an LTE channel, CH6 of a Wi-Fi channel and CH39450 of an LTE channel, CH11 of a Wi-Fi channel and CH39450 of an LTE channel, CH4 of a Wi-Fi channel and CH39350 of an LTE channel, CH6 of a Wi-Fi channel and CH39350 of an LTE channel, CH11 of a Wi-Fi channel and CH39350 of an LTE channel, CH4 of a Wi-Fi channel and CH39150 of an LTE channel, CH6 of a Wi-Fi channel and CH39150 of an LTE channel, CH11 of a Wi-Fi channel and CH39150 of an LTE channel, CH1 of a Wi-Fi channel and CH 50 of an LTE channel, CH4 of a Wi-Fi channel and CH38750 of an LTE channel, CH6 of a Wi-Fi channel and CH38750 of an LTE channel, CH11 of a Wi-Fi channel and CH 50 of an LTE channel.
And S103, reducing the transmitting power by the Wi-Fi module.
In an optional implementation manner, the preset combinations are classified according to the interference of the Wi-Fi radio frequency signals on the LTE reception channel, and for a combination with large radio frequency interference, more transmission power is reduced, and for a combination with small radio frequency interference, less transmission power is reduced.
In one example, the preset combination is divided into a first combination and a second combination, and step S103 specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, and the first power back-off value is greater than the second power back-off value.
In another example, the preset combinations are divided into a first combination, a second combination and a third combination, and step S103 specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination, a second combination or a third combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
if the current combination belongs to the third combination, the Wi-Fi module reduces the transmission power by a third power backspacing value;
wherein the first power back-off value, the second power back-off value, and the third power back-off value are all different.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, the second combined radio frequency interference is greater than the third combined radio frequency interference, the first power back-off value is greater than the second power back-off value, and the second power back-off value is greater than the third power back-off value.
As shown in Table 2, the first combination includes CH1 for the Wi-Fi channel and CH39550 for the LTE channel, CH4 for the Wi-Fi channel, and CH39550 for the LTE channel. The second combination includes CH6 for the Wi-Fi channel and CH39550 for the LTE channel, CH1 for the Wi-Fi channel and CH39500 for the LTE channel, CH4 for the Wi-Fi channel and CH39500 for the LTE channel. The third combination includes CH11 of the Wi-Fi channel and CH39550 of the LTE channel, CH6 of the Wi-Fi channel and CH39500 of the LTE channel, CH1 of the Wi-Fi channel and CH39450 of the LTE channel, CH4 of the Wi-Fi channel and CH39450 of the LTE channel, CH1 of the Wi-Fi channel and CH39350 of the LTE channel, CH1 of the Wi-Fi channel and CH39150 of the LTE channel. The first power back-off value is 18dB, the second power back-off value is 12dB, and the third power back-off value is 6 dB.
And if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to the first combination, the Wi-Fi module reduces the transmission power by 18 dB. And if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to the second combination, the Wi-Fi module reduces the transmission power by 12 dB. And if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to the third combination, the Wi-Fi module reduces the transmission power by 12 dB. And if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module does not belong to the preset combination, maintaining the emission power of the Wi-Fi module unchanged. Specifically, as shown in table 2.
TABLE 2
In an optional implementation manner, in order to ensure the accuracy of the radio frequency interference processing method, the LTE module sends the frequency point, the bandwidth, the downlink signal strength, and the like of the LTE module to the Wi-Fi module at intervals of, for example, 1 ms. The Wi-Fi module can also set different preset combinations according to different frequency points, bandwidths and downlink signal strengths of the LTE module. In an example, different frequency points of the LTE module correspond to different preset combinations, for example, after the Wi-Fi module receives the frequency band F2 where the LTE module currently operates and the frequency point T1 of the LTE, it determines whether radio frequency interference exists according to whether a combination of the frequency band F1 where the Wi-Fi module currently operates and the frequency band F2 where the LTE module currently operates belongs to the preset combination M1 corresponding to the frequency point T1, and specifically, if the combination of F1 and F2 belongs to the preset combination M1, it determines that radio frequency interference exists. In another example, the combinations of different frequency points and downlink signal strengths of the LTE module correspond to different preset combinations. For example, the combination of the frequency point T1 and the downlink signal strength Q1 corresponds to the predetermined combination M2, and the combination of the frequency point T2 and the downlink signal strength Q2 corresponds to the predetermined combination M3. In another example, the combinations of different frequency points and bandwidths of the LTE module correspond to different preset combinations. For example, the combination of the frequency point T1 and the bandwidth Band2 corresponds to the preset combination M4, and the combination of the frequency point T1 and the bandwidth Band5 corresponds to the preset combination M5. In another example, the combinations of different frequency points, bandwidths, and downlink signal strengths of the LTE module correspond to different preset combinations. For example, the combination of the frequency point T1, the bandwidth Band1 and the downlink signal strength Q3 corresponds to the predetermined combination M6, and the combination of the frequency point T2, the bandwidth Band5 and the downlink signal strength Q2 corresponds to the predetermined combination M7.
In this embodiment, under the condition that radio frequency interference exists between the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module, the Wi-Fi module greatly reduces interference of Wi-Fi radio frequency signals in the electronic device to an LTE receiving channel by reducing transmission power, that is, by adopting a TPC strategy.
In a specific example, table 3 shows the reception sensitivities of the LTE signals before and after the processing method of the present embodiment is adopted. The isolation between the Wi-Fi antenna in the Wi-Fi module and the LTE antenna in the LTE module is 30 dB. As can be seen from table 2, the reception sensitivity of the LTE signal decreases by about 50dBm before the processing method of the present embodiment, i.e., without TPC, and decreases by only about 2dBm after the processing method of the present embodiment, i.e., with TPC. The LTE only sensitivity represents the receiving sensitivity of an LTE signal when only an LTE module in the electronic equipment works; the Wi-Fi ToLTE sensitivity represents the receiving sensitivity of an LTE signal when an LTE module and a Wi-Fi module in the electronic equipment work simultaneously.
TABLE 3
Example 2
As shown in fig. 4, the present embodiment provides an electronic device 300, which includes a Wi-Fi module 310 and an LTE module 320, where the Wi-Fi module 310 includes a frequency band obtaining unit 311, an interference determining unit 312, and a power control unit 313.
The frequency band obtaining unit 311 is configured to obtain a frequency band in which the LTE module currently operates;
the interference determining unit 312 is configured to determine that radio frequency interference exists according to the currently operating frequency band of the LTE module and the currently operating frequency band of the LTE module.
In an optional embodiment, the interference determining unit 312 is configured to determine that radio frequency interference exists when a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to a preset combination. In specific implementation, a preset combination is set according to a radio frequency interference condition between an LTE module and a Wi-Fi module in electronic equipment.
The power control unit 313 is used to reduce the transmission power.
In an optional embodiment, the power control unit 313 is configured to classify preset combinations according to the interference of the Wi-Fi radio frequency signal on the LTE reception channel, reduce more transmission power for a combination with large radio frequency interference, and reduce less transmission power for a combination with small radio frequency interference.
In an example, the preset combination is divided into a first combination and a second combination, the power control unit 313 is specifically configured to determine whether a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to the first combination or the second combination, and if the combination belongs to the first combination, reduce the transmission power of the Wi-Fi module by a first power backoff value; and if the Wi-Fi module belongs to the second combination, reducing the transmission power of the Wi-Fi module by a second power back-off value. Wherein the first power backoff value is different from the second power backoff value.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, and the first power back-off value is greater than the second power back-off value.
In another example, the preset combinations are divided into a first combination, a second combination, and a third combination, the power control unit 313 is specifically configured to determine whether the combination of the frequency band in which the Wi-Fi module currently operates and the frequency band in which the LTE module currently operates belongs to the first combination, the second combination, or the third combination, and if the combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power backoff value; if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value; if the combination belongs to the third combination, the Wi-Fi module reduces the transmission power by a third power back-off value. Wherein the first power back-off value, the second power back-off value, and the third power back-off value are all different.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, the second combined radio frequency interference is greater than the third combined radio frequency interference, the first power back-off value is greater than the second power back-off value, and the second power back-off value is greater than the third power back-off value.
In specific implementation, in order to ensure the accuracy of the radio frequency interference processing method, the LTE module sends the frequency point, the bandwidth, the downlink signal strength, and the like of the LTE module to the processor at intervals of, for example, 1 ms. The processor can also set different preset combinations according to different frequency points, bandwidths and downlink signal strengths of the LTE module.
In an optional implementation manner, the Wi-Fi module and the LTE module perform information interaction through a WCI-2 interface.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module according to embodiments of the invention. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
Example 3
The embodiment provides a radio frequency interference processing method, which is applied to an electronic device comprising a Wi-Fi module and an LTE module, and the processing method comprises the following steps:
and S301, acquiring the current working frequency bands of the Wi-Fi module and the LTE module.
Step S302, determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module.
In an optional implementation manner of step S302, if a combination of a currently operating frequency band of the Wi-Fi module and a currently operating frequency band of the LTE module belongs to a preset combination, it is determined that radio frequency interference exists. In specific implementation, a preset combination is set according to a radio frequency interference condition between an LTE module and a Wi-Fi module in electronic equipment.
And step S303, controlling the Wi-Fi module to reduce the transmitting power.
In an optional implementation manner, the preset combinations are classified according to the interference of the Wi-Fi radio frequency signals on the LTE receiving channel, the Wi-Fi module is controlled to reduce more transmission power for the combinations with large radio frequency interference, and the Wi-Fi module is controlled to reduce less transmission power for the combinations with small radio frequency interference.
In one example, the preset combinations are divided into a first combination and a second combination, and step S303 specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, and the first power back-off value is greater than the second power back-off value.
In another example, the preset combinations are divided into a first combination, a second combination and a third combination, and step S303 specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination, a second combination or a third combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
if the current combination belongs to the third combination, the Wi-Fi module reduces the transmission power by a third power backspacing value;
wherein the first power back-off value, the second power back-off value, and the third power back-off value are all different.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, the second combined radio frequency interference is greater than the third combined radio frequency interference, the first power back-off value is greater than the second power back-off value, and the second power back-off value is greater than the third power back-off value.
In an optional implementation manner, in order to ensure the accuracy of the radio frequency interference processing method, the LTE module sends the frequency point, the bandwidth, the downlink signal strength, and the like of the LTE module to the processor at intervals of, for example, 1 ms. The processor can also set different preset combinations according to different frequency points, bandwidths and downlink signal strengths of the LTE module.
It should be noted that the difference between the method for processing radio frequency interference provided in this embodiment and embodiment 1 is: the execution main body of the processing method in the embodiment is a processor in the electronic device, such as a main chip, a control chip and the like, and the processing of radio frequency interference is realized by respectively performing information interaction with a Wi-Fi module and an LTE module; an execution main body of the processing method in embodiment 1 is a Wi-Fi module, and processing of radio frequency interference is realized by performing information interaction with an LTE module.
In this embodiment, under the condition that radio frequency interference exists between the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module, the processor reduces the transmission power by controlling the Wi-Fi module, that is, by adopting the TPC strategy, the interference of Wi-Fi radio frequency signals in the electronic device to the LTE receiving channel is greatly reduced.
Example 4
As shown in fig. 5, the present embodiment provides an electronic device 400, which includes a Wi-Fi module 410, an LTE module 420, and a processor 430, where the processor 430 is configured to:
acquiring the current working frequency bands of a Wi-Fi module and an LTE module;
determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
and controlling the Wi-Fi module to reduce the transmission power.
In an optional implementation manner, the determining that radio frequency interference exists according to a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates specifically includes: and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists. In specific implementation, a preset combination is set according to a radio frequency interference condition between an LTE module and a Wi-Fi module in electronic equipment.
In an optional implementation manner, the processor classifies preset combinations according to the interference of the Wi-Fi radio frequency signals on the LTE receiving channel, controls the Wi-Fi module to reduce more transmission power for a combination with large radio frequency interference, and controls the Wi-Fi module to reduce less transmission power for a combination with small radio frequency interference.
In one example, the preset combinations are divided into a first combination and a second combination, and the processor 430 is further configured to:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, and the first power back-off value is greater than the second power back-off value.
In another example, the preset combinations are divided into a first combination, a second combination and a third combination, and the processor 430 is further configured to:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination, a second combination or a third combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
if the current combination belongs to the third combination, the Wi-Fi module reduces the transmission power by a third power backspacing value;
wherein the first power back-off value, the second power back-off value, and the third power back-off value are all different.
In one example of the implementation, the first combined radio frequency interference is greater than the second combined radio frequency interference, the second combined radio frequency interference is greater than the third combined radio frequency interference, the first power back-off value is greater than the second power back-off value, and the second power back-off value is greater than the third power back-off value.
In specific implementation, in order to ensure the accuracy of the radio frequency interference processing method, the LTE module sends the frequency point, the bandwidth, the downlink signal strength, and the like of the LTE module to the processor at intervals of, for example, 1 ms. The processor can also set different preset combinations according to different frequency points, bandwidths and downlink signal strengths of the LTE module.
Example 5
The present embodiment provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor, implements the steps of the method of processing radio frequency interference of embodiment 1 or embodiment 3.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation manner, the present invention can also be implemented in the form of a program product, which includes program code for causing a terminal device to execute the steps of the method for processing radio frequency interference of embodiment 1 or embodiment 3 when the program product runs on the terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (15)
1. A processing method of radio frequency interference is applied to electronic equipment comprising a Wi-Fi module and an LTE module, and is characterized by comprising the following steps:
the Wi-Fi module acquires the current working frequency band of the LTE module;
the Wi-Fi module determines that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
the Wi-Fi module reduces transmit power.
2. The processing method according to claim 1, wherein the step of determining, by the Wi-Fi module, that radio frequency interference exists according to the current operating frequency band of the Wi-Fi module and the current operating frequency band of the LTE module specifically includes:
and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
3. The processing method according to claim 2, wherein the preset combination includes a first combination and a second combination, and the step of the Wi-Fi module reducing the transmission power specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, the Wi-Fi module reduces the transmission power by a first power back-off value;
if the current combination belongs to the second combination, the Wi-Fi module reduces the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
4. The processing method of any one of claims 1 to 3, wherein information interaction between the Wi-Fi module and the LTE module is performed through a WCI-2 interface.
5. An electronic device comprising a Wi-Fi module and an LTE module, wherein the Wi-Fi module comprises:
the frequency band acquisition unit is used for acquiring the current working frequency band of the LTE module;
the interference determining unit is used for determining that radio frequency interference exists according to the current working frequency band of the interference determining unit and the current working frequency band of the LTE module;
and the power control unit is used for reducing the transmitting power.
6. The electronic device according to claim 5, wherein the interference determination unit is specifically configured to determine that radio frequency interference exists when a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to a preset combination.
7. The electronic device according to claim 6, wherein the preset combination includes a first combination and a second combination, and the power control unit is specifically configured to determine whether a combination of a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates belongs to the first combination or the second combination, and if the combination belongs to the first combination, reduce the transmission power by a first power backoff value; if the first combination belongs to the second combination, reducing the transmitting power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
8. The electronic device of any one of claims 5-7, wherein information interaction between the Wi-Fi module and the LTE module is through a WCI-2 interface.
9. A processing method of radio frequency interference is applied to electronic equipment comprising a Wi-Fi module and an LTE module, and is characterized by comprising the following steps:
acquiring the current working frequency bands of a Wi-Fi module and an LTE module;
determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
and controlling the Wi-Fi module to reduce the transmission power.
10. The processing method according to claim 9, wherein the step of determining that there is radio frequency interference according to the current operating frequency band of the Wi-Fi module and the current operating frequency band of the LTE module specifically includes:
and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
11. The processing method according to claim 10, wherein the preset combination includes a first combination and a second combination, and the step of controlling the Wi-Fi module to reduce the transmission power specifically includes:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
12. An electronic device comprising a Wi-Fi module and an LTE module, wherein the electronic device further comprises a processor configured to:
acquiring the current working frequency bands of a Wi-Fi module and an LTE module;
determining that radio frequency interference exists according to the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module;
and controlling the Wi-Fi module to reduce the transmission power.
13. The electronic device of claim 12, wherein the determining that radio frequency interference exists according to a frequency band in which the Wi-Fi module currently operates and a frequency band in which the LTE module currently operates specifically includes: and if the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a preset combination, determining that radio frequency interference exists.
14. The electronic device of claim 13, wherein the preset combination comprises a first combination and a second combination, the processor further configured to:
judging whether the combination of the current working frequency band of the Wi-Fi module and the current working frequency band of the LTE module belongs to a first combination or a second combination;
if the current combination belongs to the first combination, controlling the Wi-Fi module to reduce the transmission power by a first power back-off value;
if the current combination belongs to the second combination, controlling the Wi-Fi module to reduce the transmission power by a second power back-off value;
wherein the first power backoff value is different from the second power backoff value.
15. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method for processing radio frequency interference according to any one of claims 1-3 or 9-11.
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