CN111970019A - Coexisting spurious signal processing method, coexisting spurious signal processing device, storage medium and electronic equipment - Google Patents
Coexisting spurious signal processing method, coexisting spurious signal processing device, storage medium and electronic equipment Download PDFInfo
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Abstract
The application discloses a method and a device for processing coexisting stray signals, a storage medium and electronic equipment. The method is applied to a coexisting spurious signal processing device, the working frequency range of the device is a first frequency range, and the method comprises the following steps: receiving an instruction for changing a digital-to-analog (DA) conversion rate; the DA conversion rate before changing and the signal intensity of an intermodulation signal generated by a transmitting signal of the device in a second frequency band range exceed a preset threshold; modifying said DA conversion rate in response to said instruction; the signal intensity of the intermodulation signal generated by the modified DA conversion rate and the transmitting signal of the device in the second frequency band range does not exceed a preset threshold value. The position of intermodulation signal can be changed by changing the DA conversion rate, so that the stray standard is met, and the cost and the power consumption are saved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for processing a coexisting spurious signal, a storage medium, and an electronic device.
Background
In the high pass 865 platform, a radio frequency Transmit (TX) signal undergoes Digital-to-analog (DA) conversion inside a transceiver, and the rate of DA conversion forms intermodulation with the radio frequency TX signal. The intermodulation signal and the rf TX signal are output from the transceiver and amplified by the power amplifier to form a strong spurious signal, which may be referred to as a spurious signal.
When the transmit signal of the transceiver operating in the first frequency band and the intermodulation signal generated by the DA conversion rate fall into the second frequency band and the signal strength in the second frequency band exceeds the spurious standard specified by the third Generation Partnership Project (3 GPP), a problem of coexistence spurious of the first frequency band and the second frequency band is caused.
Disclosure of Invention
The embodiment of the application provides a method and a device for processing coexisting stray signals, a storage medium and electronic equipment, which can solve the coexisting stray problem among different frequency bands.
In a first aspect, an embodiment of the present application provides a method for processing a coexisting spurious signal, where the method is applied to a coexisting spurious signal processing apparatus, and an operating frequency range of the apparatus is a first frequency range (ω #)1,ω2) The method comprises the following steps:
receiving an instruction for changing a digital-to-analog (DA) conversion rate; DA conversion rate omega before modification5Intermodulation signal generated with the transmission signal of the device in a second frequency band range (ω)3,ω4) The maximum value of the signal intensity of (a) exceeds a preset threshold;
altering the DA conversion rate in response to the instruction; modified DA conversion rate omega6Intermodulation signals generated with a transmit signal of the apparatus in the second frequency band range (ω)3,ω4) Does not exceed the preset threshold.
In a second aspect, an embodiment of the present application provides an apparatus for processing a coexisting spurious signal, where an operating frequency range of the apparatus is a first frequency range, and the apparatus includes:
the receiving module is used for receiving an instruction for changing the digital-to-analog DA conversion rate; the maximum value of the signal intensity of an intermodulation signal generated by the DA conversion rate before being changed and a transmitting signal of the device in a second frequency band range exceeds a preset threshold value;
a change module to change the DA conversion rate in response to the instruction; the maximum value of the signal intensity of the intermodulation signal generated by the modified DA conversion rate and the transmission signal of the device in the second frequency band range does not exceed the preset threshold value.
In a third aspect, an embodiment of the present application provides a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the method steps provided in the first aspect of the embodiment of the present application.
In a fourth aspect, an embodiment of the present application provides an electronic device, including: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps as provided by the first aspect of the embodiments of the present application.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
in the embodiment of the present application, the positions of the intermodulation signals generated by the transmission signal of the coexisting spurious signal processing apparatus and the DA conversion rate can be changed by changing the DA conversion rate of the coexisting spurious signal processing apparatus, and the signal strength of the intermodulation signals in the second frequency band range is weakened to meet the spurious standard specified by the third Generation Partnership Project (3 GPP). Further, the transmit signal of the coexisting spurious signal processing device and the intermodulation signal generated by the DA conversion rate can be shifted completely out of the second frequency band range by changing the DA conversion rate of the coexisting spurious signal processing device. By the method, the signal strength of the coexisting spurious signal in the second frequency range is improved, hardware change is not needed, spurious standards can be met, and cost and power consumption can be saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a coexisting spurious signal processing apparatus according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of an rf front end architecture according to an embodiment of the present application;
fig. 3 is a flowchart illustrating a method for processing a coexisting spurious signal according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram illustrating comparison of signals before and after processing according to an embodiment of the present disclosure;
fig. 5 is a flowchart illustrating another method for processing a coexisting spurious signal according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram illustrating comparison of signals before and after another processing according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a coexisting spurious signal processing apparatus according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Fig. 1 schematically illustrates a structural diagram of a coexisting spurious signal processing apparatus according to an embodiment of the present application. As shown in fig. 1, the coexisting spurious signal processing apparatus 10 may include at least: a transceiver modem subsystem 110, a low pass filter 120, a mixer 130, and a digital to analog converter 140. Wherein:
the transceiver modem subsystem 110 is specifically configured to output low frequency digital signals.
The low pass filter 120 is specifically configured to low pass filter signals generated by the transceiver modem subsystem 110.
The mixer 130 is specifically configured to convert the low-Frequency digital signal output from the low-pass filter 120 into a Radio Frequency (RF) modulation signal. In the embodiment of the present application, the frequency range of the signal output by the mixer 130 may be regarded as the operating frequency range of the coexisting spurious signal processing apparatus, and in the following embodiment, the operating frequency range of the coexisting spurious signal processing apparatus may be referred to as a first frequency range.
The digital-to-analog converter 140 is specifically configured to convert the RF modulation signal output by the mixer 130 into an analog signal. The analog signal may be amplified by a power amplifier in a radio frequency front end architecture.
It is noted that the coexisting spurious signal processing apparatus provided in the embodiment of the present application may specifically be a transceiver.
Fig. 2 schematically illustrates a radio frequency front end architecture provided in an embodiment of the present application. As shown in fig. 2, the rf front end is disposed between the coexisting spurious signal processing apparatus 10 and the antenna 60, and the rf front end architecture may specifically include: envelope tracker 20, power amplifier 30, low pass filter 40 and antenna switch 50.
Specifically, the output signal of the coexisting spurious signal processing apparatus 10 is an analog signal output by the digital-to-analog converter 140 in fig. 1.
The power amplifier 30 may amplify the analog signal output by the coexisting spurious signal processing apparatus, which is the transmission signal. The envelope tracker 20 may be used to improve the efficiency of the power amplifier 30. Specifically, the power amplifier 30 may include two operation modes, one is Auto Power Tracking (APT), and the other is Envelope Tracking (ET). The APT adjusts the power supply voltage of the power amplifier according to the output power of the power amplifier through an algorithm. The actual output power of the power amplifier is still determined by the size of the input signal. ET is to make the power amplifier always work in saturation state, and to control the output power by adjusting the power supply voltage of the power amplifier. In the embodiment of the present application, the operation mode of the power amplifier 30 is an ET mode.
The band pass filter 40 may perform band pass filtering on the amplified signals, retaining signals within a specific frequency band, and filtering out signals outside the specific frequency band.
The antenna switch 50 can be used to switch the frequency band and the transmitting and receiving states of the antenna, thereby realizing the switching of the transmitting and receiving functions without interfering with each other.
Next, the intermodulation mentioned in the embodiment of the present application, and the calculation method of the frequency band range of the intermodulation signal will be described.
Specifically, intermodulation refers to the modulation of two signals with different frequencies when they are applied to a nonlinear circuit, resulting in a new frequency signal output. If the frequency happens to fall within the receiver operating channel bandwidth, interference to the receiver is formed, which is referred to as intermodulation interference.
When two or more interfering signals are applied to the receiver simultaneously, the combined frequency of the two interference sometimes happens to be at or near the frequency of the wanted signal due to the effect of the nonlinearity and the interference passes through the receiver smoothly, which is called intermodulation interference, where the third order intermodulation is the most severe. It should be noted that the intermodulation mentioned in the embodiment of the present application is second-order intermodulation.
Assume that the two signals that produce intermodulation are the first signal and the second signal, respectively. The frequency range of the first signal is (a, b), and the second signal is a signal with a constant frequency of c. Then, the frequency bands of the intermodulation signals generated by the first signal and the second signal are (a-c, b-c) and (a + c, b + c).
Next, the method for processing a coexistence spur according to the embodiment of the present application will be described with reference to the coexistence spur processing apparatus shown in fig. 1 and the rf front end architecture shown in fig. 2.
Please refer to fig. 3. Fig. 3 is a flowchart illustrating a method for processing a coexistence spur according to an embodiment of the present application, where the method for processing a coexistence spur can be performed by a coexistence spur processing apparatus. The coexisting spurious signal processing device has a first frequency range (omega)1,ω2). As shown in fig. 3, the method for processing coexisting spurious signals may include the following steps:
s301: receiving an instruction for changing a digital-to-analog (DA) conversion rate; the signal intensity of an intermodulation signal generated by the DA conversion rate before being changed and a transmitting signal of the coexisting spurious signal processing device in the second frequency band range exceeds a preset threshold value.
Specifically, the instruction to change the DA conversion rate may be specifically implemented by a developer through software programming. Specifically, the coexisting spurious signal processing apparatus can be fixedly set by a manufacturer when leaving a factory. The DA conversion rate is an inherent property of the coexisting spur processing device. The higher the DA conversion rate, the higher the performance requirements for the digital to analog converter 140.
It is known that the DA conversion rate is the number of samples per second and can be regarded as a signal with a constant frequency.
Specifically, let the second frequency range be (ω)3,ω4) The preset threshold is XmaxThe DA conversion rate before modification is ω5。
Then, before changing the DA conversion rate, the frequency band range of the intermodulation signal is (ω)1-ω5,ω2-ω5) And (omega)1+ω5,ω2+ω5). The maximum value of the signal intensity of the intermodulation signal in the second frequency band is marked as X1. It is known that X1Greater than Xmax。
S302: changing the DA conversion rate in response to the instruction; the signal intensity of the intermodulation signal generated by the modified DA conversion rate and the transmission signal of the coexisting spurious signal processing device in the second frequency band range does not exceed the preset threshold value.
Specifically, let the modified DA conversion rate be ω6。
Then, after changing the DA conversion rate, the frequency band range of the intermodulation signal is (ω)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6). At this time, the maximum value of the signal intensity of the intermodulation signal in the second frequency band is recorded as X2And X2≤Xmax。
It is known that by changing the DA conversion rate, the DA conversion rate and the location of the intermodulation signal generated by the transmission signal of the coexisting spurious signal processing apparatus, i.e., the frequency band range of the intermodulation signal, can be changed. In the embodiment of the present application, it is only necessary to ensure that the maximum value of the signal strength of the intermodulation signal in the second frequency band does not exceed the preset threshold, and the spurious standard specified by 3GPP can be satisfied.
Possibly, after the DA conversion rate is changed, part of the intermodulation signals generated by the DA conversion rate and the transmission signals of the coexisting spurious signal processing device falls into the range of the second frequency band, but the maximum value of the signal intensity in the range of the second frequency band does not exceed the preset threshold value.
Possibly, after the DA conversion rate is changed, the intermodulation signal generated by the DA conversion rate and the transmission signal of the coexisting spurious signal processing device is completely shifted out of the range of the second frequency band.
Specifically, the frequency band range in which the intermodulation signal generated by the modified DA conversion rate and the transmission signal of the coexisting spurious signal processing apparatus is located is (ω)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6) (ii) a Wherein: omega2-ω6＜ω3，ω1+ω6＞ω4。
How to make the coexistence spur meet the 3GPP spur standard by adjusting the DA conversion rate is described in detail next in conjunction with fig. 4.
As shown in FIG. 4, the first frequency band range is (ω)1,ω2) The second frequency range is (omega)3,ω4). Altering DA conversion rate (ω)5) The frequency band range of the signal generated by the co-existence of the emission signal of the spurious signal processing device and the DA conversion rate intermodulation is (omega)1-ω5,ω2-ω5) And (omega)1+ω5,ω2+ω5). The maximum value of the signal intensity of the intermodulation signal in the second frequency band range is X1Above a predetermined threshold value Xmax。
Altering DA conversion rate (ω)6) Then, the frequency band range of the signal generated by the transmission signal of the coexisting spurious signal processing device and the DA conversion rate intermodulation is (omega)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6). The maximum value of the signal intensity of the intermodulation signal in the second frequency band range is X2Below a predetermined threshold value Xmax。
As can be seen from fig. 4, after changing the DA conversion rate, the intermodulation signals are shifted out of the range of the second frequency band. It should be noted that, not limited to completely shifting the intermodulation signal out of the second frequency band as shown in fig. 4, in a specific implementation, only a part of the intermodulation signal needs to be shifted out of the second frequency band, and it is ensured that the maximum value of the signal strength of the intermodulation signal remaining in the second frequency band does not exceed the preset threshold value XmaxAnd (4) finishing.
For how to specifically adjust the DA conversion rate, the spur requirement may be satisfied, and the embodiment of the present application may be obtained through analog operation, that is, the specific adjustment range of the DA conversion rate may be obtained through analog operation by a developer on a spectrometer. And according to the operation result, the DA conversion rate of the coexisting spurious signal processing device is changed in a software programming mode, so that the coexisting spurious problem of the coexisting spurious signal processing device in the specific using process is solved.
Possibly, the modified DA conversion rate is N times said pre-modified DA conversion rate; wherein N is a positive integer greater than or equal to 2.
In the embodiment of the application, the positions of the intermodulation signals generated by the transmission signals of the coexisting spurious signal processing device and the DA conversion rate can be changed by changing the DA conversion rate of the coexisting spurious signal processing device, and the signal strength of the intermodulation signals in the second frequency band range is weakened, so that the spurious standards specified by 3GPP are met. By the method, the signal strength of the coexisting spurious signal in the second frequency range is improved, hardware change is not needed, spurious standards can be met, and cost and power consumption can be saved.
Fig. 5 is a flowchart illustrating a specific method for processing a coexisting spurious signal according to an embodiment of the present disclosure. As shown in fig. 5, the method for processing coexisting spurious signals may include the following steps:
s501: receiving an instruction for doubling the DA conversion rate; the signal intensity of an intermodulation signal generated by the DA conversion rate before frequency doubling and a transmitting signal of the coexisting spurious signal processing device in the second frequency band range exceeds a preset threshold value.
Possibly, the first frequency band range may be B39, i.e. (1880M, 1920M). DA conversion rate (i.e.,. omega.)5) May be 153.6M, then the frequency doubled DA conversion rate (i.e., ω6) It was 307.2M. The second frequency band range may be B34, i.e. (2010M, 2025M). Preset threshold value XmaxMay be-50 dBm as specified by 3 GPP.
It should be noted that the intermodulation signals are ideally within the calculated frequency range. However, in practical use, the frequency range of the intermodulation signal exceeds the calculated frequency range due to signal leakage of the adjacent channels.
Although it is calculated that the frequency ranges of the intermodulation signals generated by B39 and DA conversion rate are (1726.4M, 1766.4M) and (2033.6M, 2073.6M), and are not within the frequency band range (2010M, 2025M) of B34, in a specific implementation, the coexistence spurs of B39 in B34 still exist due to signal leakage of adjacent channels, and exceed the spurs standard specified by 3 GPP. Thus, a need still exists to address the coexistence spurs of B39 within B34.
It can be appreciated that the 3GPP requirements for normal spurs are much lower than the requirements for coexistence spurs. Taking Long Term Evolution (LTE) B39 as an example, in the frequency band range (2010M, 2025M), the spur is required to be less than-30 dBm by the normal spur, but is required to be less than-50 dBm by the coexistence spur. When the spur signal is shifted out of the coexisting spur signal range, the spur requirement is low, and the spur standard of 3GPP can be met. It should be noted that the common spurious signal is an intermodulation signal that does not fall into the second frequency band.
S502: in response to the instruction, doubling the DA conversion rate; the frequency-doubled DA conversion rate and the intermodulation signal generated by the transmission signal of the coexisting spurious signal processing device are not within the second frequency range.
Specifically, the instruction to change the DA conversion rate may be specifically implemented by a developer through software programming. Specifically, the coexisting spurious signal processing apparatus can be fixedly set by a manufacturer when leaving a factory. The DA conversion rate is an inherent property of the coexisting spur processing device. The higher the DA conversion rate, the higher the performance requirements for the digital to analog converter 140.
Fig. 6 exemplarily shows a signal comparison diagram of LTE B39 before and after DA conversion rate doubling.
As shown in fig. 6, the DA conversion rate was 153.6M before changing the DA conversion rate. The intermodulation signal generated by the DA conversion rate and the transmission signal of the coexisting spurious signal processing device falls within the range of the second frequency band. It can be seen that the maximum value of the signal strength of the intermodulation signals in the second frequency band is about-40 dBm. This maximum exceeds the 3GPP requirements for coexistence spurs, i.e., the spurs should be less than-50 dBm to meet the spur requirements. Therefore, the DA conversion rate is frequency-doubled, and it can be seen from the figure that when the DA conversion rate is 307.2M, the intermodulation signal generated by the DA conversion rate and the transmission signal of the coexisting spurious signal processing apparatus is shifted out of the range of the second frequency band, which meets the requirement of 3GPP for coexisting spurious.
It is to be appreciated that, not limited to frequency doubling the DA conversion rate, in particular implementations a frequency doubling of the DA conversion rate may be performed with a greater magnification. The frequency multiplication processing is not limited to the DA conversion rate, and the DA conversion rate may be modified in a specific implementation. The embodiment of the present application does not limit the modification form of the DA conversion rate. Since the higher the DA conversion rate, the higher the performance requirements for the digital-to-analog converter 140. Therefore, in a specific implementation, the appropriate DA conversion rate can be selected after measuring the processing effect of the coexisting spurious signals and the operation performance of the dac 140.
It should also be noted that, without being limited to completely shifting the intermodulation signal out of the range of the second frequency band, in a specific implementation, only a part of the intermodulation signal may be shifted out of the range of the second frequency band, and in this embodiment of the present application, it is only required to ensure that the maximum value of the signal strength of the intermodulation signal in the second frequency band does not exceed the preset threshold value, so that the spurious standard specified by 3GPP can be satisfied.
In the embodiment of the present application, the positions of the intermodulation signals generated by the transmission signal of the coexisting spurious signal processing apparatus and the DA conversion rate can be changed by changing the DA conversion rate of the coexisting spurious signal processing apparatus, and the signal strength of the intermodulation signals in the second frequency band range is weakened to meet the spurious standard specified by the third Generation Partnership Project (3 GPP). Further, the transmit signal of the coexisting spurious signal processing device and the intermodulation signal generated by the DA conversion rate can be shifted completely out of the second frequency band range by changing the DA conversion rate of the coexisting spurious signal processing device. By the method, the signal strength of the coexisting spurious signal in the second frequency range is improved, hardware change is not needed, spurious standards can be met, and cost and power consumption can be saved.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Please refer to fig. 7, which illustrates a schematic structural diagram of a coexisting spurious signal processing apparatus according to an exemplary embodiment of the present application. The coexistence spur processing apparatus may be implemented as all or part of an electronic device in software, hardware, or a combination of both. The operating frequency range of the coexisting spurious signal processing device 70 is a first frequency range, and the coexisting spurious signal processing device 70 may include: a receiving module 710 and a modifying module 720. Wherein:
a receiving module 710, configured to receive an instruction for changing a digital-to-analog DA conversion rate; the maximum value of the signal intensity of the intermodulation signal generated by the DA conversion rate before the change and the transmitting signal of the coexisting spurious signal processing device in the second frequency band range exceeds a preset threshold value.
A changing module 720 for changing the DA conversion rate in response to the instruction; the maximum value of the signal intensity of the intermodulation signal generated by the changed DA conversion rate and the transmission signal of the coexisting spurious signal processing device in the second frequency band range does not exceed the preset threshold value.
Possibly, intermodulation signals generated by the DA conversion rate and the transmit signals generated by the coexisting spurious signal processing means are not within the second frequency band range.
Possibly, the frequency band range of the modified DA conversion rate and the intermodulation signal generated by the coexisting spurious signal processing device is (ω)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6) (ii) a Wherein: omega2-ω6＜ω3，ω1+ω6＞ω4。
Possibly, the modified DA conversion rate is N times the pre-modified DA conversion rate; wherein N is a positive integer greater than or equal to 2.
Possibly, the modified DA conversion rate is twice the DA conversion rate before modification.
Possibly, the first frequency band range is (1880-1920 mega), the second frequency band range is (2010-2025 mega), and the pre-modification DA conversion rate is 153.6 mega.
Possibly, the preset threshold is-50 dBm.
It should be noted that, when the above-mentioned coexistence spurious signal processing apparatus according to the above-mentioned embodiment executes the coexistence spurious signal processing method, only the division of the above-mentioned functional modules is taken as an example, in practical applications, the above-mentioned function allocation may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules, so as to complete all or part of the above-mentioned functions. In addition, the embodiments of the coexisting spurious signal processing apparatus and the coexisting spurious signal processing method provided in the above embodiments belong to the same concept, and details of implementation procedures are shown in the embodiments of the methods, which are not described herein again.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
In the embodiment of the present application, the positions of the intermodulation signals generated by the transmission signal of the coexisting spurious signal processing apparatus and the DA conversion rate can be changed by changing the DA conversion rate of the coexisting spurious signal processing apparatus, and the signal strength of the intermodulation signals in the second frequency band range is weakened to meet the spurious standard specified by the third Generation Partnership Project (3 GPP). Further, the transmit signal of the coexisting spurious signal processing device and the intermodulation signal generated by the DA conversion rate can be shifted completely out of the second frequency band range by changing the DA conversion rate of the coexisting spurious signal processing device. By the method, the signal strength of the coexisting spurious signal in the second frequency range is improved, hardware change is not needed, spurious standards can be met, and cost and power consumption can be saved.
Please refer to fig. 8, which is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. As shown in fig. 8, the electronic device 80 may include: at least one processor 801, at least one network interface 804, a user interface 803, memory 805, at least one communication bus 1002.
Wherein a communication bus 802 is used to enable connective communication between these components.
The user interface 803 may include a Display screen (Display) and a Camera (Camera), and the optional user interface 803 may also include a standard wired interface and a wireless interface.
The network interface 804 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface).
The Memory 805 may include a Random Access Memory (RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 805 includes a non-transitory computer-readable medium. The memory 805 may be used to store instructions, programs, code sets, or instruction sets. The memory 805 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the various method embodiments described above, and the like; the storage data area may store data and the like referred to in the above respective method embodiments. The memory 805 may optionally be at least one memory device located remotely from the processor 801 as previously described. As shown in fig. 8, memory 805, which is a type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a coexistence spur processing application.
In the electronic device 80 shown in fig. 8, the user interface 803 is mainly used as an interface for providing input for a user, and acquiring data input by the user; and processor 801 may be configured to invoke a coexistence spur processing application stored in memory 805 and perform the following in particular:
receiving an instruction for changing a digital-to-analog (DA) conversion rate; DA conversion rate omega before modification5An intermodulation signal generated with a transmission signal of the coexisting spurious signal processing device in a second frequency band range (ω)3,ω4) The signal strength of (a) exceeds a preset threshold;
altering the DA conversion rate in response to the instruction; modified DA conversion rate omega6Intermodulation signals generated with the transmission signals of the coexisting spurious signal processing device in the second frequency band range (ω)3,ω4) Does not exceed the preset threshold.
In one embodiment, the DA conversion rate is not within the second frequency band range with intermodulation signals generated by transmission signals generated by the coexisting spurious signal processing means.
In one embodiment, the frequency band range of the modified DA conversion rate and the intermodulation signal generated by the coexisting spurious signal processing device is (ω)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6) (ii) a Wherein: omega2-ω6＜ω3，ω1+ω6＞ω4。
In one embodiment, the modified DA conversion rate is N times the pre-modified DA conversion rate; wherein N is a positive integer greater than or equal to 2.
In one embodiment, the modified DA conversion rate is twice the DA conversion rate before the modification.
In one embodiment, the first frequency band range is (1880-1920 megabits), the second frequency band range is (2010-2025 megabits), and the pre-modification DA conversion rate is 153.6 megabits.
In one embodiment, the preset threshold is-50 dBm.
In the embodiment of the present application, the positions of the intermodulation signals generated by the transmission signal of the coexisting spurious signal processing apparatus and the DA conversion rate can be changed by changing the DA conversion rate of the coexisting spurious signal processing apparatus, and the signal strength of the intermodulation signals in the second frequency band range is weakened to meet the spurious standard specified by the third Generation Partnership Project (3 GPP). Further, the transmit signal of the coexisting spurious signal processing device and the intermodulation signal generated by the DA conversion rate can be shifted completely out of the second frequency band range by changing the DA conversion rate of the coexisting spurious signal processing device. By the method, the signal strength of the coexisting spurious signal in the second frequency range is improved, hardware change is not needed, spurious standards can be met, and cost and power consumption can be saved.
Embodiments of the present application also provide a computer-readable storage medium, which stores instructions that, when executed on a computer or a processor, cause the computer or the processor to perform one or more of the steps in the embodiments shown in fig. 3 to 6. The components of the above-described coexisting spurious signal processing apparatus, if implemented in the form of software functional units and sold or used as separate products, may be stored in the computer-readable storage medium.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in or transmitted over a computer-readable storage medium. The computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)), or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. And the aforementioned storage medium includes: various media capable of storing program codes, such as a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, and an optical disk. The technical features in the present examples and embodiments may be arbitrarily combined without conflict.
The above-described embodiments are merely preferred embodiments of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements made to the technical solutions of the present application by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope defined by the claims of the present application.
Claims (10)
1. Coexisting straySignal processing method, characterized in that it is applied to a coexistence spur processing apparatus having an operating frequency range of a first frequency range (ω)1,ω2) The method comprises the following steps:
receiving an instruction for changing a digital-to-analog (DA) conversion rate; DA conversion rate omega before modification5An intermodulation signal generated with a transmission signal of the coexisting spurious signal processing device in a second frequency band range (ω)3,ω4) The maximum value of the signal intensity of (a) exceeds a preset threshold;
altering the DA conversion rate in response to the instruction; modified DA conversion rate omega6Intermodulation signals generated with the transmission signals of the coexisting spurious signal processing device in the second frequency band range (ω)3,ω4) Does not exceed the preset threshold.
2. The method of claim 1, wherein the DA conversion rate and an intermodulation signal generated by a transmit signal generated by the coexisting spurious signal processing apparatus are not within the second frequency band range.
3. The method of claim 2, wherein the modified DA conversion rate and the intermodulation signal generated by the transmission signal of the coexisting spurious signal processing apparatus are in a frequency band range of (ω)1-ω6,ω2-ω6) And (omega)1+ω6,ω2+ω6) (ii) a Wherein: omega2-ω6＜ω3，ω1+ω6＞ω4。
4. The method of claim 2, wherein the modified DA conversion rate is N times the pre-modified DA conversion rate; wherein N is a positive integer greater than or equal to 2.
5. The method of claim 4, wherein the modified DA slew rate is twice the pre-modified DA slew rate.
6. The method of claim 1, wherein the first frequency band range is (1880-1920 mega), the second frequency band range is (2010-2025 mega), and the pre-modification DA conversion rate is 153.6 mega.
7. The method of claim 6, wherein the preset threshold is-50 dBm.
8. A coexistent spurious signal processing apparatus, wherein an operating frequency range of the apparatus is a first frequency range, the apparatus comprising:
the receiving module is used for receiving an instruction for changing the digital-to-analog DA conversion rate; the maximum value of the signal intensity of an intermodulation signal generated by the DA conversion rate before being changed and a transmitting signal of the device in a second frequency band range exceeds a preset threshold value;
a change module to change the DA conversion rate in response to the instruction; the maximum value of the signal intensity of the intermodulation signal generated by the modified DA conversion rate and the transmission signal of the device in the second frequency band range does not exceed the preset threshold value.
9. A computer storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the method steps according to any of claims 1-7.
10. An electronic device, comprising: a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps according to any of claims 1-7.
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| CN102474295A (en) * | 2009-06-26 | 2012-05-23 | 高通股份有限公司 | Dynamically changing a transmitter sampling frequency for a digital-to-analog converter (dac) to reduce interference from dac images |
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