CN113473588A - Communication signal processing method, communication signal processing apparatus, computer device, and storage medium - Google Patents
Communication signal processing method, communication signal processing apparatus, computer device, and storage medium Download PDFInfo
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- CN113473588A CN113473588A CN202010246451.9A CN202010246451A CN113473588A CN 113473588 A CN113473588 A CN 113473588A CN 202010246451 A CN202010246451 A CN 202010246451A CN 113473588 A CN113473588 A CN 113473588A
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
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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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/362—Aspects of the step size
Abstract
The application relates to a communication signal processing method, a communication signal processing device, computer equipment and a storage medium. The method comprises the following steps: determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies; then, adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal with adjusted power; finally, the communication signal after the power adjustment is demodulated and decoded. The method can improve the accuracy of adjusting the power of the communication signal.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a communication signal processing method and apparatus, a computer device, and a storage medium.
Background
In the field of communication technology, gain control is an especially important link in the process of wireless communication between terminals. The purpose of gain control is to adjust the power of the received communication signal to ensure that the received communication signal reaches the baseband at the optimum demodulation and decoding power.
In the related art, the power of the communication signal can be adjusted by fixing the gain. Specifically, a gain factor may be preset, then the gain factor is used to adjust the power of the received communication signal, and finally the adjusted communication signal is demodulated and decoded.
However, the method of adjusting the power of the communication signal by using the fixed gain has a problem of inaccurate adjustment due to the diversity and complexity of the power dimension during the communication.
Disclosure of Invention
In view of the above, it is necessary to provide a communication signal processing method, apparatus, computer device, and storage medium capable of improving accuracy.
In a first aspect, a method for processing a communication signal is provided, the method including:
determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies;
adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal with adjusted power;
And performing demodulation and decoding processing on the communication signal after the power adjustment.
In one embodiment, the adjusting the power of the communication signal according to the power gain control strategy corresponding to the target power interval includes:
inhibiting adjustment of the power of the communication signal.
In one embodiment, the adjusting the power of the communication signal according to the power gain control strategy corresponding to the target power interval includes:
adjusting the power of the communication signal by using a large step factor to obtain a first adjustment signal, wherein the large step factor is larger than a first preset factor threshold;
if the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In one embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between the lower bound value of the steady-state interval and the upper bound value of the underflow interval is greater than a second difference threshold, and the small step factors include a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; adjusting the power of the first adjustment signal with a small step factor, comprising:
if the power value of the first adjusting signal is between the overflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a first small step factor;
and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a second small step factor.
In one embodiment, the method further comprises:
and if the power value of the first adjusting signal is in the steady-state interval, forbidding to adjust the power of the first adjusting signal.
In one embodiment, the adjusting the power of the first adjustment signal with a small step factor comprises:
And adjusting the power of the first adjusting signal for multiple times by using the small step factor, wherein the small step factor used in each adjustment is smaller than the small step factor used in the last adjustment.
In one embodiment, the plurality of power intervals include a transition interval, an overflow interval and a steady-state interval, the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval; the adjusting the power of the communication signal according to the power gain control strategy corresponding to the target power interval includes:
and adjusting the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In one embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, an upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and a lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors comprise a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; adjusting the power of the communication signal with a small step factor, comprising:
If the target power interval is a first transition interval, adjusting the power of the communication signal by using a first small step factor;
and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
In a second aspect, a communication signal processing apparatus is provided, which includes:
the device comprises a determining module, a judging module and a processing module, wherein the determining module is used for determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, and each power interval corresponds to different power gain control strategies;
the adjusting module is used for adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal after power adjustment;
and the demodulation decoding module is used for carrying out demodulation decoding processing on the communication signal after the power adjustment.
In one embodiment, the plurality of power intervals include a steady-state interval, the target power interval is the steady-state interval, the steady-state interval is an ideal power interval for demodulation and decoding, and the adjusting module is specifically configured to prohibit adjustment of the power of the communication signal.
In one embodiment, the plurality of power intervals include a steady-state interval and an overflow interval, the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold, and the adjusting module is specifically configured to adjust the power of the communication signal by using a large step factor to obtain a first adjustment signal, where the large step factor is greater than a first preset factor threshold; if the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In one embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between the lower bound value of the steady-state interval and the upper bound value of the underflow interval is greater than a second difference threshold, and the small step factors include a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the adjusting module is specifically configured to adjust the power of the first adjusting signal by using a first small step factor if the power value of the first adjusting signal is between the overflow interval and the steady-state interval; and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a second small step factor.
In one embodiment, the adjusting module is specifically configured to prohibit the power of the first adjusting signal from being adjusted if the power value of the first adjusting signal is in a steady-state interval.
In one embodiment, the adjusting module is specifically configured to adjust the power of the first adjusting signal multiple times by using the small step factor, where the small step factor used in each adjustment is smaller than the small step factor used in the previous adjustment.
In one embodiment, the plurality of power intervals include a transition interval, an overflow interval and a steady-state interval, the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval; the adjusting module is specifically configured to adjust the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is within the steady-state interval, where the small step factor is smaller than a second preset factor threshold.
In one embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, an upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and a lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors comprise a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the adjusting module is specifically configured to adjust the power of the communication signal by using a first small step factor if the target power interval is a first transition interval; and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
In a third aspect, a computer device is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the communication signal processing method according to any one of the first aspect when executing the computer program.
In a fourth aspect, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the communication signal processing method of any of the first aspects.
The communication signal processing method, the communication signal processing device, the computer equipment and the storage medium determine a target power interval where the power of the communication signal to be processed is located from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies; then, adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal after power adjustment; finally, the communication signal after the power adjustment is demodulated and decoded. According to the communication signal processing method, the power interval of the received communication signal is judged firstly, and then the power of the communication signal is adjusted by using the corresponding power gain control strategy, so that the power adjustment pertinence is stronger, and the adjustment of the power of the communication signal is more accurate.
Drawings
FIG. 1 is a flow diagram illustrating a method for processing a communication signal according to one embodiment;
FIG. 2 is a diagram illustrating different power intervals in one embodiment;
fig. 3 is a flowchart illustrating a method for adjusting the power of a communication signal according to a power gain control strategy corresponding to a target power interval in a communication signal processing method according to an embodiment;
FIG. 4 is a flowchart illustrating a method for adjusting the power of the first adjustment signal with a small step factor in a communication signal processing method according to an embodiment;
FIG. 5 is a flow diagram illustrating a method for adjusting power of a communication signal using a small step factor in a communication signal processing method according to an embodiment;
FIG. 6 is a diagram illustrating a flow relationship between different states of a communication signal according to an embodiment;
FIG. 7 is a schematic diagram of power gain control start and end points in one embodiment;
FIG. 8 is a block diagram showing the structure of a communication signal processing apparatus according to an embodiment;
FIG. 9 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In the embodiment of the present application, as shown in fig. 1, a communication signal processing method is provided, which is described by taking an example that the method is applied to a terminal, and includes the following steps:
In wireless communication, signals are transmitted between terminals through electromagnetic waves, however, in the communication process, the power of signals received by a receiving terminal is often changed due to the distance change between a transmitting terminal and the receiving terminal, but for a baseband on the receiving terminal, an ideal power interval exists, and when the power of communication signals reaching the baseband is in the ideal power interval, the baseband can perform better demodulation and decoding processing on the communication signals. Therefore, before the communication signal is input to the baseband, the power of the communication signal needs to be adjusted to ensure that the power of the communication signal input to the lace is within the ideal power range.
In this step, before the power of the communication signal is adjusted, the power interval is divided first, and the purpose of dividing the power interval is to divide the power of the received communication signal into different levels, so as to facilitate the implementation of different power gain control strategies on the power of the communication signal in the subsequent steps.
Alternatively, as shown in fig. 2, the power intervals in the present application may include an overflow interval (indicated by areas a1 and a2 in fig. 2), a steady-state interval (indicated by area b in fig. 2), and a transition interval (indicated by areas c1 and c2 in fig. 2). The steady-state interval refers to the ideal power interval mentioned above, the overflow interval refers to an interval in which the difference between the overflow interval and the steady-state interval exceeds a preset threshold, and the transition interval refers to an interval between the overflow interval and the steady-state interval.
And 102, the terminal adjusts the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain the communication signal after power adjustment.
In this step, each divided power interval corresponds to a different power gain control strategy, and the purpose of dividing the different power gain strategies is to make the adjustment process more targeted, so that the adjustment is more accurate.
Generally, a rule established by a power gain control strategy is that if the power of a communication signal is in an interval with a larger difference from a steady-state interval, the amplitude of a single adjustment is larger when power gain control is performed, so as to make the power of the communication signal quickly return to the steady-state interval; if the power of the communication signal is in an interval with a small difference from the steady-state interval, the amplitude of single adjustment can be properly reduced, so that the purpose is to accurately adjust and finally obtain a more stable result; if the power of the communication signal is in the steady-state interval, the continuous adjustment is forbidden, the oscillation of the communication signal is prevented, the communication signal is kept in a steady state, and the quality of the communication signal is ensured.
Furthermore, in order to ensure more accurate adjustment, the starting point of each time slot can be used as the starting point of power gain control, so that the power of the communication signal received by the baseband in each time slot can be ensured to be kept in a steady-state interval, and in addition, oscillation or distortion of the communication signal caused by adjusting the communication signal in the time slot is prevented, and further, a useful signal in the communication signal is prevented from being lost. A segment of communication signal without any useful information can be transmitted in advance at the beginning of each time slot, and the segment of communication signal without any useful information can be called training sequence, and the power of the training sequence is the power used in the whole time slot for transmitting the communication signal. When performing power gain control, the power of the training sequence may be first adjusted, and then the adjustment result is applied to the whole process of transmitting the communication signal in the time slot. In this way, loss of useful information due to adjustments made to the communication signal in the time slot can be avoided.
In step 103, the terminal demodulates and decodes the power-adjusted communication signal.
After the power adjustment is completed, the power of the obtained communication signal is already in a steady-state interval, i.e., an ideal power interval. At this time, the baseband of the receiving terminal can perform better operations such as demodulation and decoding on the adjusted communication signal.
In the communication signal processing method, a target power interval in which the power of a communication signal to be processed is located is determined from a plurality of preset power intervals, wherein each power interval corresponds to a different power gain control strategy; then, adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal after power adjustment; finally, the communication signal after the power adjustment is demodulated and decoded. According to the communication signal processing method, the power interval of the received communication signal is judged firstly, and then the power of the communication signal is adjusted by using the corresponding power gain control strategy, so that the power adjustment pertinence is stronger, and the adjustment of the power of the communication signal is more accurate.
In this embodiment, the plurality of power intervals include a steady-state interval, where the steady-state interval is an ideal power interval for demodulation and decoding, and when the target power interval is the steady-state interval, a method for adjusting power of a communication signal according to a power gain control strategy corresponding to the target power interval in a communication signal processing method is provided, where the method includes: the terminal inhibits adjustment of the power of the communication signal.
In the embodiment of the present application, when the received communication signal is just in the steady-state interval, it is described that the power of the current communication signal can be demodulated and decoded better by the baseband. The terminal does not need to make any further adjustments to the power of the communication signal. The stability of the signal is ensured to a certain extent.
In the embodiment of the present application, the plurality of power intervals include a steady-state interval (indicated by b in fig. 2) and an overflow interval (indicated by a1 and a2 in fig. 2), the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, and a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold. Referring to fig. 3, a method for adjusting power of a communication signal according to a power gain control strategy corresponding to a target power interval in another communication signal processing method is provided, where the method includes:
In this step, when it is detected that the power of the communication signal is in the overflow interval, it indicates that the difference between the power value of the communication signal and the steady-state interval is large, and at this time, the power value of the communication signal needs to be adjusted greatly, so that the power of the communication signal can be adjusted to the steady-state interval quickly, therefore, a large step factor is used to adjust the power of the communication signal in this step, and optionally, the large step factor may be 20 dB.
In this step, after the communication signal is adjusted by using the large step factor, the first adjustment signal is obtained, and then the power interval in which the power of the first adjustment signal is located needs to be continuously determined, and the power value of the first adjustment signal can be calculated by using a sampling point peak value statistical method. And if the power value of the first adjusting signal is still in the overflow interval, continuously adjusting the power of the first adjusting signal by using the large stepping factor until the power of the first adjusting signal is between the steady-state interval and the overflow interval. And if the power value of the first adjusting signal is in the steady-state interval, forbidding to continuously adjust the power of the first adjusting signal. When the power of the first adjustment signal is between the steady-state interval and the overflow interval, it is indicated that the difference between the power value of the first adjustment signal and the steady-state interval is small, and if the first adjustment signal is continuously adjusted by using a large step factor, the adjustment may be over-adjusted, so that the power of the first adjustment signal cannot be adjusted to the steady-state interval. Therefore, when it is detected that the power value of the first adjustment signal is between the steady-state interval and the overflow interval, the power of the first adjustment signal needs to be adjusted by a small step factor until the obtained power value of the second adjustment signal is in the steady-state interval.
Optionally, the power of the first adjustment signal may be adjusted multiple times by using the small step factor, where the small step factor used in each adjustment is smaller than the small step factor used in the previous adjustment. In the embodiment of the present application, after the first adjustment signal is adjusted by using the small step factor each time, the difference between the power value of the obtained second adjustment signal and the steady-state interval becomes smaller and smaller, and as the difference between the power value of the obtained second adjustment signal and the steady-state interval becomes smaller and smaller, the used small step factor also needs to become smaller and smaller, so that it can be ensured that the finally obtained power value of the second adjustment signal can accurately fall within the steady-state interval. For example, the small step factor may be a set of decreasing values of 5dB, 3dB, 2dB and 1 dB.
In the embodiment of the application, the power of the communication signal is adjusted by combining the large step factor and the small step factor, so that the power value of the adjusted communication signal can accurately fall within the steady-state interval.
In the embodiment of the present application, the overflow interval includes an overflow interval (an area indicated by a1 in fig. 2) and an underflow interval (an area indicated by a2 in fig. 2), a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between the lower bound value of the steady-state interval and the upper bound value of the underflow interval is greater than a second difference threshold, and the small step factor includes a first small step factor and a second small step factor, where the first small step factor is smaller than the second small step factor. Referring to fig. 4, a method for adjusting the power of the first adjustment signal with a small step factor in a communication signal processing method is provided, the method comprising:
In the embodiment of the present application, an area c1 in fig. 2 is between the overflow section and the steady-state section, and an area c2 in fig. 2 is between the underflow section and the steady-state section. The adjustment factors used in the steps 401 and 402 for the power values of the first adjustment signal in different intervals are different in size, provided that the distances between c1 and c2 and the steady-state interval are different in size. That is to say, in the embodiment of the present application, the size of the small step factor may be adjusted according to the size of the power interval. Assuming that c1 is smaller than c2, the adjustment amplitude required to adjust the power of the first adjustment signal from c1 to the steady-state interval is smaller than the adjustment amplitude from c2 to the steady-state interval, and the first small step factor can have a smaller value than the second small step factor. For example, the first small step factors may be 5dB, 3dB, 2dB, and 1dB, and the second small step factors may be 10dB, 7dB, 4dB, and 1 dB.
In the embodiments of the present application. The value of the small step factor can flexibly change along with the distance between the power interval and the steady-state interval, so that the adjustment of the power of the first adjustment signal can be more accurate.
In this embodiment, the plurality of power intervals include a transition interval, an overflow interval, and a steady-state interval, where the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval. The embodiment of the application provides a method for adjusting the power of a communication signal according to a power gain control strategy corresponding to a target power interval in a communication signal processing method, which comprises the following steps:
and the terminal adjusts the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In the embodiment of the present application, if the received communication signal is in the transition region at the beginning, the power of the communication signal can be adjusted by a small step factor directly, and the communication signal does not need to be adjusted by a large step factor. This allows the communication signal to be quickly and accurately adjusted to the steady state interval.
In this embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, the upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and the lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors include a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor. Referring to fig. 5, a method for adjusting power of a communication signal with a small step factor in a communication signal processing method is provided, the method comprising:
Step 501 and step 502 in the embodiment of the present application are similar to the implementation means and technical effects of step 401 and step 402 described above, and are not described herein again.
In the embodiments, a brief summary is provided, and the communication signal processing method provided by the present application first provides five power intervals, which are, in order from large to small, an overflow interval (indicated by a1 in fig. 2), a first transition interval (indicated by c1 in fig. 2), a steady-state interval (indicated by b in fig. 2), a second transition interval (indicated by c2 in fig. 2), and an underflow interval (indicated by a2 in fig. 2). When the terminal receives the communication signal, the power of the communication signal is judged firstly, a power interval is determined for the communication signal according to the judgment, each power interval corresponds to different power gain control strategies, and when the communication signal is in different power intervals, the power of the communication signal is adjusted according to the power gain control strategies which are set in advance. Specifically, when the power of the communication signal is in the overflow interval, the power of the communication signal is adjusted to a first transition interval by using a large step factor, and then the power of the communication signal is adjusted to a steady-state interval by continuing to use a decreasing small step factor. When the power of the communication signal is in an underflow interval, the power of the communication signal is firstly adjusted to a second transition interval by using a large step factor, and then the communication signal is continuously adjusted to a steady-state interval by using a decreased small step factor. If the power of the communication signal is in the first transition interval or the second transition interval at first, the adjustment process is a sub-process of the above adjustment process, that is, the communication signal is adjusted to the steady-state interval by directly using the small step factor. If the power of the communication signal is initially in a steady state interval, no adjustment of the communication signal is required. The power intervals in which the power of the communication signal is different may be regarded as different states in which the communication signal is located, and for the above adjustment process, a schematic diagram of a flow relationship between different states of the communication signal may be given, as shown in fig. 6.
Optionally, the adjusting of the power of the communication signal may be automatically ended after the power of the communication signal is adjusted to the steady-state interval, or an end point may be set manually, where the end point is set manually to prevent the communication signal from being unstable due to the adjustment time extending between time slots. As shown in fig. 7, fig. 7 gives a schematic diagram of the power gain control start point and end point. RX in fig. 7 indicates high level, TX indicates low level, and the receiving terminal switches to a receiving state at the time of high level to prepare for receiving a communication signal. EN denotes enable, which is triggered when the receiving terminal transitions from low to high, so that the power gain control strategy can be executed at the beginning of a slot and stopped at the end.
It should be understood that, although the steps in the flowcharts of fig. 1 to 7 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1 to 7 may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least some of the other steps or stages.
In one embodiment, as shown in fig. 8, there is provided a communication signal processing apparatus 800 comprising: a determination module 801, an adjustment module 802, and a demodulation decoding module 803, wherein:
a determining module 801, configured to determine, from multiple preset power intervals, a target power interval in which power of a communication signal to be processed is located, where each power interval corresponds to a different power gain control policy;
an adjusting module 802, configured to adjust the power of the communication signal according to a power gain control policy corresponding to the target power interval, to obtain a communication signal with adjusted power;
a demodulation and decoding module 803, configured to perform demodulation and decoding processing on the power-adjusted communication signal.
In this embodiment, the plurality of power intervals include a steady-state interval, the target power interval is the steady-state interval, the steady-state interval is an ideal power interval for demodulation and decoding, and the adjusting module 802 is specifically configured to prohibit adjusting the power of the communication signal.
In this embodiment of the application, the multiple power intervals include a steady-state interval and an overflow interval, the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold, and the adjusting module 802 is specifically configured to adjust the power of the communication signal by using a large step factor to obtain a first adjustment signal, where the large step factor is greater than a first preset factor threshold; if the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow section includes an overflow section and an underflow section, a difference between a lower bound value of the overflow section and an upper bound value of the steady-state section is greater than a first difference threshold, a difference between the lower bound value of the steady-state section and the upper bound value of the underflow section is greater than a second difference threshold, and the small step factors include a first small step factor and a second small step factor, where the first small step factor is smaller than the second small step factor; the adjusting module 802 is specifically configured to adjust the power of the first adjusting signal by using a first small step factor if the power value of the first adjusting signal is between the overflow interval and the steady-state interval; and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a second small step factor.
In this embodiment of the application, the adjusting module 802 is specifically configured to prohibit the power of the first adjusting signal from being adjusted if the power value of the first adjusting signal is in a steady-state interval.
In this embodiment, the adjusting module 802 is specifically configured to adjust the power of the first adjusting signal multiple times by using the small step factor, where the small step factor used in each adjustment is smaller than the small step factor used in the previous adjustment.
In this embodiment, the plurality of power intervals include a transition interval, an overflow interval, and a steady-state interval, where the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval; the adjusting module 802 is specifically configured to adjust the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, where the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, the upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and the lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors comprise a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the adjusting module 802 is specifically configured to adjust the power of the communication signal by using a first small step factor if the target power interval is a first transition interval; and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
For specific limitations of the communication signal processing apparatus, reference may be made to the above limitations of the communication signal processing method, which are not described herein again. The respective modules in the communication signal processing apparatus described above may be wholly or partially implemented by software, hardware, and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, an operator network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a communication signal processing method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In an embodiment of the present application, there is provided a computer device including a memory and a processor, the memory storing a computer program, and the processor implementing the following steps when executing the computer program:
determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies;
adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal with adjusted power;
and performing demodulation and decoding processing on the communication signal after the power adjustment.
In this embodiment, the plurality of power intervals include a steady-state interval, the target power interval is the steady-state interval, the steady-state interval is an ideal power interval for demodulation and decoding, and the processor further implements the following steps when executing the computer program:
Inhibiting adjustment of the power of the communication signal.
In this embodiment, the plurality of power intervals include a steady-state interval and an overflow interval, the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold, and when the processor executes the computer program, the processor further implements the following steps:
adjusting the power of the communication signal by using a large step factor to obtain a first adjustment signal, wherein the large step factor is larger than a first preset factor threshold; if the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow section includes an overflow section and an underflow section, a difference between a lower bound value of the overflow section and an upper bound value of the steady-state section is greater than a first difference threshold, a difference between the lower bound value of the steady-state section and the upper bound value of the underflow section is greater than a second difference threshold, and the small step factors include a first small step factor and a second small step factor, where the first small step factor is smaller than the second small step factor; the processor, when executing the computer program, further performs the steps of:
If the power value of the first adjusting signal is between the overflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a first small step factor; and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a second small step factor.
In the embodiment of the present application, the processor, when executing the computer program, further implements the following steps:
and if the power value of the first adjusting signal is in the steady-state interval, forbidding to adjust the power of the first adjusting signal.
In the embodiment of the present application, the processor, when executing the computer program, further implements the following steps:
and adjusting the power of the first adjusting signal for multiple times by using the small step factor, wherein the small step factor used in each adjustment is smaller than the small step factor used in the last adjustment.
In this embodiment, the plurality of power intervals include a transition interval, an overflow interval, and a steady-state interval, where the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval; the processor, when executing the computer program, further performs the steps of:
and adjusting the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, the upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and the lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors comprise a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the processor, when executing the computer program, further performs the steps of:
if the target power interval is a first transition interval, adjusting the power of the communication signal by using a first small step factor; and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
In an embodiment of the application, a computer-readable storage medium is provided, on which a computer program is stored, which computer program, when being executed by a processor, realizes the steps of:
Determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies;
adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal with adjusted power;
and performing demodulation and decoding processing on the communication signal after the power adjustment.
In an embodiment of the present application, the plurality of power intervals include a steady-state interval, the target power interval is the steady-state interval, and the steady-state interval is an ideal power interval for demodulation and decoding, when executed by the processor, the computer program further implements the following steps:
inhibiting adjustment of the power of the communication signal.
In this embodiment, the plurality of power intervals include a steady-state interval and an overflow interval, the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, and a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold, and when executed by the processor, the computer program further implements the following steps:
adjusting the power of the communication signal by using a large step factor to obtain a first adjustment signal, wherein the large step factor is larger than a first preset factor threshold; if the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow section includes an overflow section and an underflow section, a difference between a lower bound value of the overflow section and an upper bound value of the steady-state section is greater than a first difference threshold, a difference between the lower bound value of the steady-state section and the upper bound value of the underflow section is greater than a second difference threshold, and the small step factors include a first small step factor and a second small step factor, where the first small step factor is smaller than the second small step factor; the computer program when executed by the processor further realizes the steps of:
if the power value of the first adjusting signal is between the overflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a first small step factor; and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using a second small step factor.
In an embodiment of the application, the computer program when executed by the processor further performs the steps of:
and if the power value of the first adjusting signal is in the steady-state interval, forbidding to adjust the power of the first adjusting signal.
In an embodiment of the application, the computer program when executed by the processor further performs the steps of:
And adjusting the power of the first adjusting signal for multiple times by using the small step factor, wherein the small step factor used in each adjustment is smaller than the small step factor used in the last adjustment.
In this embodiment, the plurality of power intervals include a transition interval, an overflow interval, and a steady-state interval, where the target power interval is the transition interval, and the transition interval is located between the steady-state interval and the overflow interval; the computer program when executed by the processor further realizes the steps of:
and adjusting the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
In this embodiment, the overflow interval includes an overflow interval and an underflow interval, a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, the upper bound value of the first transition interval is equal to the lower bound value of the overflow interval, and the lower bound value of the first transition interval is equal to the upper bound value of the steady-state interval; the lower bound value of the second transition interval is equal to the upper bound value of the underflow interval, the upper bound value of the second transition interval is equal to the lower bound value of the steady-state interval, and the small step factors comprise a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the computer program when executed by the processor further realizes the steps of:
If the target power interval is a first transition interval, adjusting the power of the communication signal by using a first small step factor; and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
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 hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include at least one of non-volatile and volatile memory. Non-volatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical storage, or the like. Volatile Memory can include Random Access Memory (RAM) or external cache Memory. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), among others.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A method of communication signal processing, the method comprising:
determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, wherein each power interval corresponds to different power gain control strategies;
adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal with adjusted power;
And demodulating and decoding the communication signal after the power adjustment.
2. The method of claim 1, wherein the plurality of power intervals include a steady-state interval, and wherein the target power interval is the steady-state interval, and wherein the steady-state interval is an ideal power interval for demodulation and decoding, and wherein adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval comprises:
inhibiting adjustment of the power of the communication signal.
3. The method of claim 1, wherein the plurality of power intervals include a steady-state interval and an overflow interval, the target power interval is the overflow interval, the steady-state interval is an ideal power interval for demodulation and decoding, a distance between the overflow interval and the steady-state interval is greater than a preset distance threshold, and the adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval comprises:
adjusting the power of the communication signal by using a large step factor to obtain a first adjustment signal, wherein the large step factor is larger than a first preset factor threshold;
If the power value of the first adjusting signal is between the steady-state interval and the overflow interval, adjusting the power of the first adjusting signal by using a small step factor until the obtained power value of the second adjusting signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
4. The method of claim 3, wherein the overflow interval comprises an overflow interval and an underflow interval, a lower bound value of the overflow interval differs from an upper bound value of the steady-state interval by more than a first difference threshold, a lower bound value of the steady-state interval differs from an upper bound value of the underflow interval by more than a second difference threshold, and the small step factor comprises a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the adjusting the power of the first adjustment signal with a small step factor comprises:
if the power value of the first adjusting signal is between the overflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using the first small step factor;
and if the power value of the first adjusting signal is between the underflow interval and the steady-state interval, adjusting the power of the first adjusting signal by using the second small step factor.
5. The method of claim 3, further comprising:
and if the power value of the first adjusting signal is in the steady-state interval, forbidding to adjust the power of the first adjusting signal.
6. The method of claim 3, wherein the adjusting the power of the first adjustment signal with a small step factor comprises:
and adjusting the power of the first adjusting signal for multiple times by using the small step factor, wherein the small step factor used in each adjustment is smaller than the small step factor used in the last adjustment.
7. The method of claim 1, wherein the plurality of power intervals comprises a transition interval, an overflow interval, and a steady-state interval, wherein the target power interval is the transition interval, and wherein the transition interval is between the steady-state interval and the overflow interval; the adjusting the power of the communication signal according to the power gain control strategy corresponding to the target power interval includes:
and adjusting the power of the communication signal by using a small step factor until the power value of the obtained third adjustment signal is in the steady-state interval, wherein the small step factor is smaller than a second preset factor threshold.
8. The method of claim 7, wherein the overflow interval comprises an overflow interval and an underflow interval, wherein a difference between a lower bound value of the overflow interval and an upper bound value of the steady-state interval is greater than a first difference threshold, wherein a difference between a lower bound value of the steady-state interval and an upper bound value of the underflow interval is greater than a second difference threshold, wherein an upper bound value of the first transition interval is equal to a lower bound value of the overflow interval, and wherein a lower bound value of the first transition interval is equal to an upper bound value of the steady-state interval; a lower bound value of the second transition interval is equal to an upper bound value of the underflow interval, an upper bound value of the second transition interval is equal to a lower bound value of the steady-state interval, and the small step factors include a first small step factor and a second small step factor, wherein the first small step factor is smaller than the second small step factor; the adjusting the power of the communication signal with a small step factor comprises:
if the target power interval is the first transition interval, adjusting the power of the communication signal by using the first small step factor;
and if the target power interval is the second transition interval, adjusting the power of the communication signal by using the second small step factor.
9. A communication signal processing apparatus, characterized in that the apparatus comprises:
the device comprises a determining module, a judging module and a processing module, wherein the determining module is used for determining a target power interval in which the power of a communication signal to be processed is positioned from a plurality of preset power intervals, and each power interval corresponds to different power gain control strategies;
the adjusting module is used for adjusting the power of the communication signal according to a power gain control strategy corresponding to the target power interval to obtain a communication signal after power adjustment;
and the demodulation decoding module is used for carrying out demodulation decoding processing on the communication signal after the power adjustment.
10. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 8 when executing the computer program.
11. 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 of any one of claims 1 to 8.
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