CN112152734B

CN112152734B - Information processing method, information processing apparatus, communication terminal, and computer-readable storage medium

Info

Publication number: CN112152734B
Application number: CN202010935269.4A
Authority: CN
Inventors: 揭骏仁
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-09-08
Filing date: 2020-09-08
Publication date: 2022-08-09
Anticipated expiration: 2040-09-08
Also published as: CN112152734A

Abstract

The application relates to an information processing method, an information processing device, a communication terminal and a computer readable storage medium. The signal processing method is applied to a communication terminal and comprises the following steps: acquiring a plurality of calibration data sets based on a preset rule; measuring first channel quality information according to a calibration data set currently adopted by the communication terminal; determining a target calibration data set from the plurality of calibration data sets based on the first channel quality information; the power information of the signal transmitted by the communication terminal is adjusted by adopting the target calibration data set, so that the optimal power consumption can be ensured under the condition of not sacrificing the communication performance of the communication terminal.

Description

Information processing method, information processing apparatus, communication terminal, and computer-readable storage medium

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to an information processing method, an information processing apparatus, a communication terminal, and a computer-readable storage medium.

Background

With the development of radio frequency technology, an Average Power Tracking (APT) technology has emerged, which is a technology for automatically adjusting the operating voltage of a Power Amplifier (PA) according to the previous output Power of the PA, in combination with its own parameters.

In a conventional communication device, a mapping relation between output power of a power amplifier and supply voltage is only suitable for a single communication scene, and the communication device cannot realize balance optimization between communication performance and power consumption.

Disclosure of Invention

The embodiment of the application provides a signal processing method, a signal processing device, a communication terminal and a computer readable storage medium, which can ensure optimal power consumption under the condition of not sacrificing the communication performance of the communication terminal.

A signal processing method applied to a communication terminal, the method comprising:

acquiring a plurality of calibration data sets based on a preset rule;

measuring first channel quality information according to the calibration data set currently adopted by the communication terminal;

determining a target calibration data set from a plurality of calibration data sets based on the first channel quality information;

and adjusting the power information of the signal transmitted by the communication terminal by adopting the target calibration data group.

A signal processing apparatus comprising:

the acquisition module is used for acquiring a plurality of calibration data sets based on a preset rule;

a measurement module, configured to measure first channel quality information according to the calibration data set currently used by the communication terminal;

a determining module for determining a target calibration data set from a plurality of calibration data sets according to the first channel quality information;

and the adjusting module is used for adjusting the power information of the signal transmitted by the communication terminal by adopting the target calibration data set.

A communication terminal comprising a memory and a processor, the memory having stored therein a computer program, the computer program, when executed by the processor, causing the processor to perform the steps of the signal processing method described above.

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 signal processing method described above.

The information processing method can acquire a plurality of calibration data sets based on a preset rule; measuring first channel quality information according to the calibration data set currently adopted by the communication terminal; the first channel quality information can be used for representing the environmental performance condition of an uplink channel when the communication terminal is communicated with the base station, and the communication terminal can determine a target calibration data group from a plurality of calibration data groups according to the first channel quality information; the power supply voltage of the power amplifier in the communication terminal is adjusted by adopting the target calibration data set, so that the power information of the transmitting signal is adjusted to adjust the power consumption of the power amplifier in the communication terminal, the optimal power consumption can be ensured under the condition of not sacrificing the communication performance (such as the adjacent channel leakage ratio) of the communication terminal, and the balance between the communication performance and the power consumption is realized.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a diagram of an exemplary signal processing method;

FIG. 2 is a flow diagram of a signal processing method in one embodiment;

FIG. 3 is a flow diagram of step 202 in one embodiment;

FIG. 4 is a flow chart of a signal processing method in another embodiment;

FIG. 5 is a flow chart of step 408 in one embodiment;

FIG. 6 is a flowchart of step 408 in another embodiment;

FIG. 7 is a block diagram showing the structure of a signal processing apparatus according to an embodiment;

fig. 8 is a structural framework diagram of a communication terminal in one 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.

It is to be understood that the terms "first", "second", and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of technical features being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.

Fig. 1 is a schematic diagram of an application environment of a signal processing method in an embodiment. As shown in fig. 1, the application environment includes a communication terminal having a radio frequency system. The rf system includes a modem 110, an rf transceiver 120, a Switching Mode Power Supply (SMPS) 130, a Power amplifier 140, and the like. When the communication terminal communicates, the power consumption of the rf system is mainly concentrated on the power amplifier 140, and an average power tracking technique is generated for power saving, which is also called adaptive voltage regulation (adaptive Supply), and is a technique for automatically adjusting the operating voltage of the power amplifier 140 according to the previous output power of the power amplifier 140 and the parameters of the power amplifier 140. In the communication terminal using the APT technique, the rf system adjusts the supply voltage VCC of the power amplifier 140 according to the average power level of the transmission power. The transmission power of the RF-OUT output by the power amplifier 140 is positively correlated to the supply voltage, that is, the larger the supply voltage of the power amplifier 140 is, the higher the corresponding transmission power is, the smaller the supply voltage of the power amplifier 140 is, and the lower the corresponding transmission power is, thereby achieving the effect of power saving.

Fig. 2 is a flow diagram of a signal processing method in one embodiment. The signal processing method in this embodiment is described by taking an example of the signal processing method running on a communication terminal provided with the radio frequency system in fig. 1. As shown in fig. 2, the signal processing method includes steps 202 to 206.

In step 202, a plurality of calibration data sets are obtained based on a preset rule.

In one embodiment, the communication terminal obtains a plurality of calibration data sets according to a preset rule. The calibration data set includes a plurality of power information and supply voltage mappings. The power information may be understood as power of a signal transmitted by a power amplifier in a radio frequency system, and the supply voltage may be understood as an operating voltage of the power amplifier. And the mapping relation between the power information in each calibration array group and the power supply voltage meets the communication standard of the communication terminal. By way of example, the communication criterion may be understood as a threshold value of a quality parameter of a transmitted signal of the communication terminal. For example, the quality parameter may be an Adjacent Channel Leakage Ratio (ACLR), and the threshold value of the quality parameter may be understood as a threshold value ACLR _ target of the Adjacent Channel Leakage Ratio. Wherein, the range of the selected ACLR _ target can be between-40 dBmc to-30 dBmc, and certainly, the range comprises-40 dBmc and-30 dBmc. The selected ACLR _ target number may be determined by the selected range. Illustratively, the selected range may be-1.5 dBmc, i.e., one calibration data set is set for each-1.5 dBmc.

It should be noted that the larger the value of ACLR _ target, the better the communication performance of the communication terminal, and the larger the supply voltage of the power amplifier, the higher the power consumption of the power amplifier.

In one embodiment, the preset rule may be understood as performing calibration on a standard communication terminal (also referred to as a prototype) according to a preset rule, for example, based on a preset characterization table, and the calibrated data is referred to as a calibration data set. The characterization table is preset and stored with a plurality of mapping relations between preset power and preset working voltage of the power amplifier.

Step 204, measuring the first channel quality information according to the calibration data set currently adopted by the radio frequency system.

In one embodiment, the communication terminal may select one calibration data set from the plurality of calibration data sets to support the current communication. The currently used calibration data set may be defined as the currently employed calibration data set or the current calibration data set. When a power amplifier in a radio frequency system works by adopting the working voltage and power information in the current calibration data set, the communication terminal can communicate with the base station, and the base station can obtain first channel quality information according to the calculation of the uplink signal. The first Channel Quality information may be understood as a Channel Quality Indicator (CQI), and the uplink Channel condition is evaluated according to a value of the CQI. Correspondingly, the base station returns the first channel quality information obtained by measurement to the communication terminal to adjust the Modulation mode (Modulation) and the Code rate (Code rate) of the communication terminal. The correspondence between the channel quality indicator, the modulation mode, and the code rate is shown in table 1.

Table 1 correspondence table of channel quality indication, modulation mode, and code rate

As shown in table 1, the CQI has 11 values, and the larger the CQI is, the better the corresponding channel environment is, the more complex the supported modulation scheme is, and the higher the code rate is. Where, at max, SNR can be understood as the maximum Signal-to-noise ratio (SNR or S/N).

A target calibration data set is determined from the plurality of calibration data sets based on the first channel quality information, step 206.

The communication terminal may determine a target calibration data set from the plurality of calibration data sets according to the acquired first channel quality information, modulation scheme, or code rate. For example, the communication terminal may select the target calibration data set according to a variation trend of the channel quality information measured by comparing the currently used calibration data set with the last used calibration data set.

And step 208, adjusting the power information of the signal transmitted by the radio frequency system by using the target calibration data group.

The radio frequency system in the communication terminal can adopt a plurality of power information and power supply voltages in the target calibration data set to set the power supply voltage of the power amplifier so as to adjust the power information of the power amplifier, and further can control the power information of the transmitted signal. By adjusting the supply voltage or power information of the power amplifier, the power consumption (also referred to as power consumption) of the power amplifier can be adjusted. The power supply voltage or the power information of the power amplifier is positively correlated with the power consumption of the power amplifier, that is, the larger the power supply voltage or the power information of the power amplifier is, the higher the power consumption of the power amplifier is.

In the information processing method in this embodiment, a plurality of calibration data sets may be acquired based on a preset rule; measuring first channel quality information according to a calibration data set currently adopted by a radio frequency system; the first channel quality information can be used for representing the environmental performance condition of an uplink channel when the communication terminal is communicated with the base station, and the communication terminal can determine a target calibration data set from a plurality of calibration data sets constructed according to the power consumption according to the first channel quality information; the power supply voltage of the power amplifier in the radio frequency system is adjusted by adopting the target calibration data set, so that the power information of the transmitting signal is adjusted to adjust the power consumption of the power amplifier in the communication terminal, the optimal power consumption can be ensured under the condition of not sacrificing the communication performance (such as adjacent channel leakage ratio) of the communication terminal, and the balance between the communication performance and the power consumption is realized.

As shown in FIG. 3, in one embodiment, a plurality of sets of calibration data are obtained based on a predetermined rule, including steps 302-304. Wherein the content of the first and second substances,

step 302, a plurality of characterization tables are correspondingly constructed according to a plurality of adjacent channel leakage ratios of the transmission signal, and the characterization tables include a mapping relation between preset power of a power amplifier in the radio frequency system and minimum power supply voltage.

In one embodiment, a prototype machine sets a threshold for a quality parameter of a transmitted signal of the radio frequency system prior to forming the characterization table. For example, the quality parameter may be an adjacent channel leakage ratio, and the threshold value of the quality parameter may be understood as a threshold value ACLR _ target of the adjacent channel leakage ratio. Wherein, the stricter the ACLR _ target setting, the better the quality of the signal. During characterization, the supply voltage Vcc of the power amplifier in the rf system is scanned at different preset powers to obtain the minimum supply voltage Vcc _ min that meets ACLR _ target. And summarizing the minimum power supply voltages under the condition that the ACLR _ target is met, and further constructing a characterization table comprising a mapping relation between the preset power and the minimum power supply voltage.

Accordingly, the prototype can construct different characterization tables according to different ACLR _ target settings. Wherein, the range of the selected ACLR _ target can be between-40 dBmc and-30 dBmc. Illustratively, when five characterization tables are constructed, the ACLR _ target is selected to be-40 dBmc, -38.5dBmc, -37dBmc, -35.5dBmc, -34dBmc accordingly. The ACLR _ target is-40 dBmc, the corresponding signal quality is best, and when the power amplifier is characterized, the voltage of the minimum power supply voltage Vcc of the power amplifier is higher, and the power consumption is higher; a signal quality corresponding to an ACLR _ target of-34 dBmc is slightly poor, and the minimum supply voltage Vcc of the power amplifier is slightly lower in voltage and slightly lower in power consumption during characterization. Wherein, the value selected by the ACLR _ target has a certain margin with-30 dBmc so as to deal with the consistency of a prototype.

Illustratively, when the ACLR _ target is-40 dBmc, the specialization table constructed by the method is shown in Table 2.

TABLE 2 characterization Table with ACLR _ target of-40 dBmc

Preset power Pwr (dBm)	Preset operating voltage Vcc (mV)
		29.23	3600
28.50153	3600
		27.19815	3500
26.83706	3500
		25.95642	3400
24.62448	3400
		23.23	3400
22.50153	3200
		21.19815	3200
20.83706	3000
		19.95642	3000
18.62448	2800
		17.23	2800
16.50153	2300
		15.19815	2300
13.83706	2000
		12.95642	1800
11.62448	1700
		10.63462	1600
10.17419	1400
		8.637361	1200
7.525349	1200
		7.090041	1100
5.743989	1000
		4.697538	1000
4.227826	900
		3.392615	900
1.610561	800
		0.5521717	800
-0.4379406	800

It should be noted that the number of the characterization tables constructed in the embodiment of the present application may be set according to actual requirements, for example, 6, 7, 8, 9, 10 or more characterization tables may also be constructed, and is not limited to the above example.

And 304, calibrating according to the plurality of characterization tables to correspondingly obtain a plurality of calibration data groups, wherein the calibration data groups carry identification information.

In one embodiment, the constructed plurality of characterization tables can be used for calibration of a prototype. The power amplifier in the prototype can be calibrated for each characterization table, and the calibrated data can be referred to as a calibration data set. Correspondingly, the calibration data set includes a plurality of mapping relationships between the power information and the operating voltage, that is, the power information under different operating voltages can be calibrated correspondingly based on the characterization table. Illustratively, as shown in table 3, the mapping of the power information to the operating voltage in the calibration data set is shown.

TABLE 3 mapping of power information to operating voltage in calibration data sets

Bandwidth BW (MHz)	Frequency (Hz)	Power information (dBm)	Working voltage (mV)
				10	1950000	24.7	3400
10	1950000	23.9	3400
				10	1950000	23.3	3400
10	1950000	22.2	3200
				10	1950000	21.1	3200
10	1950000	20	3200
				10	1950000	19	2907
10	1950000	17.8	2800
				10	1950000	16.8	2800
10	1950000	15.5	2300
				10	1950000	14.6	2300
10	1950000	13.4	2069
				10	1950000	12	1822
10	1950000	10.8	1738
				10	1950000	9.4	1630
10	1950000	8.1	1400
				10	1950000	7	1266
10	1950000	5.9	1200
				10	1950000	4.8	1160
10	1950000	3.6	1053
				10	1950000	2.6	1007

In table 3, the power information in the calibration data set can be used as the calibration power, that is, if the power amplifier is controlled to reach the calibration power, the lowest supply voltage corresponding to the preset power that is the same as or similar to the calibration power needs to be selected from the characterization table associated with the power amplifier as the supply voltage of the power amplifier. For example, if the calibration data set in table 3 is obtained after calibration according to the characterization table in table 2, and if the calibration power is 24.7dBm, the minimum supply voltage 3.4V corresponding to 24.6288dBm, which is the same as or similar to the calibration power, may be selected from the characterization table in table 2 as the operating voltage corresponding to the calibration power of 24.7dBm in the calibration data set.

In one embodiment, the calibration data sets are arranged in a one-to-one correspondence with the characterization tables. The communication terminal may identify each calibration data set based on the adjacent channel leakage ratio to generate identification information. Specifically, each calibration data set may be identified with respect to the threshold value ACLR _ target of the adjacent channel leakage ratio of each characterization table, so that each calibration data set generates identification information correspondingly.

For example, if five characterization tables are constructed according to the ACLR _ target, which are-40 dBc, -38.5dBc, -37dBc, -35.5dBc, and-34 dBc, calibration can be performed based on the five characterization tables, and five calibration data sets are obtained, which can be respectively referred to as a calibration set, and a calibration set. Correspondingly, each calibration data set may be identified according to the threshold ACLR _ target of the adjacent channel leakage ratio of each characterization table, and the identification information thereof may be represented by Cal _ i, where i is used to identify the ordering of the calibration data sets. The identification information may be used to characterize the magnitude of the adjacent channel leakage ratio corresponding to the calibration data set, or the magnitude of the power consumption of the power amplifier corresponding to the calibration data set.

Illustratively, five sets of calibration data can be identified with Cal _1, Cal _2, Cal _3, Cal _4, Cal _5, respectively. The identification information of the calibration data groups is sorted according to a preset sequence, wherein the leakage ratio allowance of adjacent channels corresponding to the five calibration data groups is reduced from large to small, and the power consumption is reduced from large to small. That is, calibration data set Cal _1 corresponds to a characterization table with an ACLR _ target of-40 dBc, calibration data set Cal _2 corresponds to a characterization table with an ACLR _ target of-38.5 dBc, …, and so on, calibration data set Cal _5 corresponds to a characterization table with an ACLR _ target of-34 dBc. The acquired multiple calibration data sets can be correspondingly stored in the communication terminal.

It should be noted that the identification information of the calibration data set may also be presented in the form of at least one or a combination of other letters, numbers and characters, and in the embodiment of the present application, a specific presentation manner of the identification information is not further limited.

As shown in fig. 4, in one embodiment, the signal processing method includes steps 402 to 410.

Step 402, acquiring a plurality of calibration data sets based on a preset rule.

Step 404, measuring first channel quality information according to a calibration data set currently used by the radio frequency system.

Steps 402 to 404 correspond to steps 202 to 204 in the previous embodiment one to one, and are not described herein again.

At step 406, the identification information of the currently used calibration data set is obtained.

Step 408 determines a target calibration data set from the plurality of calibration data sets based on the identification information and the first channel quality information.

The communication terminal may obtain identification information of a currently-used calibration data set, for example, if the currently-used data calibration data set is a calibration set, the corresponding identification information is Cal _ 1; if the currently adopted data calibration data group is calibration two groups, the corresponding identification information is Cal _2, and so on, and if the currently adopted data calibration data group is calibration five groups, the corresponding identification information is Cal _ 5.

Based on the currently adopted calibration data set, the supply voltage and the power information of the power amplifier can be correspondingly adjusted to enable the radio frequency system to be in a normal working state, and further, on the basis, the first channel quality information can be correspondingly obtained, namely, the communication terminal can obtain the first channel quality indication from the base station.

The communication terminal may determine a target calibration data set from the plurality of calibration data sets based on the acquired identification information of the currently employed calibration data set and the first channel quality indication.

In one embodiment, if the identification information of the acquired calibration data set is Cal _1 and the currently used calibration data set is the calibration data set used by the communication terminal for the first time, the calibration data set with the identification information of Cal _1 is still used by the target calibration data set.

In one embodiment, the adjacent channel leakage ratio corresponding to the calibration data set first adopted by the radio frequency system is the maximum value, so that the communication performance of the radio frequency system in the initial state can be ensured to be optimal. For example, if the ACLR _ target is-40 dBmc, -38.5dBmc, -37dBmc, -35.5dBmc, or-34 dBmc, the adjacent channel leakage ratio corresponding to the calibration data set first adopted by the radio frequency system is-40 dBmc, that is, the identification information of the calibration data set first adopted by the radio frequency system is Cal _ 1.

It should be noted that the calibration data set first adopted by the communication terminal may be understood as the calibration data set first adopted by the communication terminal.

In one embodiment, the communication terminal may determine the target calibration data set from the multiple calibration data sets according to the acquired identification information of the currently-used calibration data set and the first channel quality indication, and may also determine the target calibration data set from the multiple calibration data sets according to a preset policy. The preset strategy can be formulated by the variation trend of at least two channel quality indicators correspondingly acquired by at least two groups of calibration data groups continuously adopted by the communication terminal.

Step 410, adjusting the power information of the transmitted signal of the radio frequency system by using the target calibration data set.

Step 410 corresponds to step 208 in the previous embodiment, and is not described herein again.

In the information processing method in this embodiment, a plurality of calibration data sets may be acquired based on a preset rule; measuring first channel quality information according to a calibration data set currently adopted by a radio frequency system; the first channel quality information can be used for representing the environmental performance condition of an uplink channel when the communication terminal is communicated with the base station, and then the communication terminal can quickly and accurately determine a target calibration data group from a plurality of calibration data groups according to the first channel quality information and the identification information of the currently adopted calibration data group; the power supply voltage of the power amplifier in the radio frequency system is adjusted by adopting the target calibration data set, so that the power information of the transmitting signal is adjusted to adjust the power consumption of the power amplifier in the communication terminal, the optimal power consumption can be ensured under the condition of not sacrificing the communication performance (such as adjacent channel leakage ratio) of the communication terminal, and the balance between the communication performance and the power consumption is realized.

As shown in fig. 5, in one embodiment, determining a target calibration data set from a plurality of calibration data sets based on the identification information and the first channel quality information includes steps 502-506.

Step 502, second channel quality information is measured according to the last calibration data set used by the radio frequency system.

The communication terminal may measure the first channel quality information according to the calibration data set currently used by the radio frequency system, and correspondingly, may also measure the second channel quality information according to the calibration data set last used by the radio frequency system. The last time is relative to the present, and it can be understood that, when the calibration data sets are used for measuring the channel quality information two adjacent times, where a time when the calibration data set is used for the first time is earlier than a time when the calibration data set is used for the second time, if the calibration data set used for the second time is used as the currently used calibration data set, the calibration data set used for the first time can be used as the calibration data set used for the last time of the currently used calibration data set. That is, the first time of the calibration data set last used by the rf system is earlier than the second time of the calibration data set currently used by the rf system.

At step 504, a trend of the first channel quality information relative to the second channel quality information is determined.

The communication terminal adopts the current calibration data group Cal _ i to measure the first quality information at regular time, and judges whether the first channel quality information changes relative to the second channel quality information according to the obtained first channel quality information and the second channel quality information.

If the change occurs, the change trend of the first channel quality information relative to the second channel quality information can be obtained. The variation trend may be understood as a trend that the first channel quality information becomes larger or smaller relative to the second channel quality information. A increasing trend may be understood as that the first channel quality information is larger than the second channel quality information, i.e. the value (or gear) of the first channel quality indicator CQI is higher than the value (or gear) of the second channel quality indicator CQI. Accordingly, the trend of decreasing may be understood as that the first channel quality information is smaller than the second channel quality information, i.e. the value (or gear) of the first channel quality indication CQI is lower than the value (or gear) of the second channel quality indication CQI.

And if the acquired first channel quality information is equal to the acquired second channel quality information, the first channel quality information is considered to be unchanged relative to the second channel quality information.

In one embodiment, the communication terminal may periodically determine a trend of a change in the first channel quality information relative to the second channel quality information. For example, the terminal device may determine the variation trend of the first channel quality information relative to the second channel quality information every 10-15 seconds.

Step 506, determining a target calibration data set according to the change trend and the identification information of the currently adopted calibration data set.

The communication terminal may determine the target calibration data set based on a trend of the first channel quality information relative to the second channel quality information and the identification information of the currently employed calibration data set. The target calibration data set is understood to be the calibration data set to be used next. The calibration data set used last time, the calibration data set used currently, and the calibration data set used next time can be understood as calibration data sets used in three-time cascade.

In one embodiment, if the trend of change is a decreasing trend, the identification information of the target calibration data set is less than or equal to the identification information of the currently used calibration data set. Specifically, if the identification information of the currently used calibration data set is Cal _ i and the trend of change is a decreasing trend, the target calibration data set may use a calibration data set whose identification information is less than or equal to Cal _ i, for example, calibration data sets whose identification information is Cal _ i, Cal _ (i-1), …, Cal _ (i-n). Wherein i-n is greater than or equal to 1, and i is less than or equal to the total number m of calibration data sets.

In one embodiment, as shown in fig. 6, if i ═ 1, the calibration data set whose identification information is Cal _1 can still be selected as the target calibration data set. The target calibration data set is the same as the currently used calibration data set, i.e., the currently used calibration data set is maintained. And if the identification information of the target calibration data group is different from the identification information of the currently adopted calibration data group, the identification information of the target calibration data group is adjacent to the identification information of the currently adopted calibration data group. For example, if the identification information of the currently used calibration data set is Cal _ i and the trend of change is a decreasing trend, the target calibration data set may use the calibration data set with the identification information Cal _ (i-1).

In one embodiment, if the trend of change is an increasing trend, the identification information of the target calibration data set is greater than or equal to the identification information of the currently used calibration data set. Specifically, if the identification information of the currently used calibration data set is Cal _ i, and the trend of change is an increasing trend, the target calibration data set may use a calibration data set whose identification information is greater than or equal to Cal _ i, for example, calibration data sets whose identification information is Cal _ i, Cal _ (i +1), …, Cal _ (i + n). Wherein i + n is less than or equal to m, and i is greater than or equal to 1. Wherein n is greater than or equal to 1; m is the total number of calibration data sets.

In one embodiment, as shown in fig. 6, if i ═ m, the calibration data set whose identification information is Cal _ m can still be selected as the target calibration data set. For example, when m is 5, if the identification information of the currently used calibration data set is Cal _5, the calibration data set with the identification information of Cal _5 may still be selected from the target calibration data set. The target calibration data set is the same as the currently used calibration data set, i.e., the currently used calibration data set is maintained.

And if the identification information of the target calibration data group is different from the identification information of the currently adopted calibration data group, the identification information of the target calibration data group is adjacent to the identification information of the currently adopted calibration data group. For example, if the identification information of the currently used calibration data set is Cal _ i and the trend of change is an increasing trend, the target calibration data set may use the calibration data set with the identification information Cal _ (i + 1).

It should be noted that, in the embodiment of the present application, the value of n may be selected according to a degree of a variation trend of the first channel quality information relative to the second channel quality information. Illustratively, if the degree level of the variation trend is positively correlated with the n value, that is, the larger the degree level of the variation trend is, the larger the correspondingly selected n value is, the smaller the degree level of the variation trend is, and the smaller the correspondingly selected n value is, wherein n is greater than or equal to 1.

The information processing method in the above embodiment may determine a variation trend of the first channel quality information with respect to the second channel quality information, determine the target calibration data set according to the variation trend and the identification information of the currently-used calibration data set, and dynamically adjust the selection of the target calibration data set according to the quality of the channel environment when the communication terminal operates, so as to ensure optimal power consumption without sacrificing performance, and achieve a balance between performance and power consumption.

And constructing multiple sets of calibration data in advance according to the power consumption, and finally realizing the balance between the performance and the power consumption.

It should be understood that although the various steps in the flow charts of fig. 2-6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order 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. 2-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.

Fig. 7 is a block diagram of a signal processing apparatus according to an embodiment. As shown in fig. 7, the signal processing apparatus includes: an acquisition module 710, a measurement module 720, a determination module 730, and an adjustment module 740.

An obtaining module 710, configured to obtain a plurality of calibration data sets based on a preset rule;

a measuring module 720, configured to measure first channel quality information according to a calibration data set currently used by the radio frequency system;

a determining module 730, configured to determine a target calibration data set from the plurality of calibration data sets according to the first channel quality information;

and an adjusting module 740, configured to adjust the power information of the rf system transmission signal using the target calibration data set.

The information processing apparatus may acquire a plurality of calibration data sets based on a preset rule; measuring first channel quality information according to a calibration data set currently adopted by a radio frequency system; the first channel quality information can be used for representing the environmental performance condition of an uplink channel when the communication terminal is communicated with the base station, and then the communication terminal can determine a target calibration data group from a plurality of calibration data groups according to the first channel quality information; the power supply voltage of the power amplifier in the radio frequency system is adjusted by adopting the target calibration data set, so that the power information of the transmitting signal is adjusted to adjust the power consumption of the power amplifier in the communication terminal, the optimal power consumption can be ensured under the condition of not sacrificing the communication performance (such as adjacent channel leakage ratio) of the communication terminal, and the balance between the communication performance and the power consumption is realized.

In one embodiment, the obtaining module 710 includes:

the device comprises a construction unit, a receiving unit and a processing unit, wherein the construction unit is used for correspondingly constructing a plurality of characterization tables according to a plurality of adjacent channel leakage ratios of a transmitting signal, and the characterization tables comprise a mapping relation between the power of a power amplifier in a radio frequency system and a power supply voltage;

and the calibration unit is used for calibrating according to the plurality of characterization tables so as to correspondingly obtain a plurality of calibration data groups, and the calibration data groups carry identification information.

In one embodiment, the calibration unit is further configured to identify each calibration data set according to the adjacent channel leakage ratio to generate identification information, and the identification information of the multiple calibration data sets is sorted according to a preset order.

In one embodiment, the determining module 730 includes:

the identification unit is used for acquiring the identification information of the currently adopted calibration data set;

a determining unit configured to determine a target calibration data set from the plurality of calibration data sets according to the identification information and the first channel quality information.

In one embodiment, the determining unit is further configured to measure second channel quality information according to a calibration data set last used by the radio frequency system; determining a variation trend of the first channel quality information relative to the second channel quality information; and determining a target calibration data set according to the change trend and the identification information of the currently adopted calibration data set.

In one embodiment, if the trend of change is a decreasing trend, the identification information of the target calibration data set is less than or equal to the identification information of the currently used calibration data set; or, if the variation trend is an increasing trend, the identification information of the target calibration data set is greater than or equal to the identification information of the currently adopted calibration data set.

In one embodiment, if the identification information of the target calibration data group is different from the identification information of the currently used calibration data group, the identification information of the target calibration data group is adjacent to the identification information of the currently used calibration data group.

In one embodiment, the first calibration data set used by the rf system corresponds to a maximum adjacent channel leakage ratio.

The division of the modules in the signal processing apparatus is only for illustration, and in other embodiments, the signal processing apparatus may be divided into different modules as needed to complete all or part of the functions of the signal processing apparatus.

For specific limitations of the signal processing apparatus, reference may be made to the above limitations of the signal processing method, which is not described herein again. The respective modules in the signal processing apparatus can 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.

Fig. 8 is a schematic diagram of the internal structure of the communication terminal in one embodiment. As shown in fig. 8, the communication terminal includes a processor and a memory connected by a system bus. Wherein the processor is configured to provide computational and control capabilities to support the operation of the entire communication terminal. The memory may include a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The computer program can be executed by a processor to implement a signal processing method provided in the following embodiments. The internal memory provides a cached execution environment for the operating system computer programs in the non-volatile storage medium. The communication terminal may be any communication terminal such as a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a Point of Sales (POS), a vehicle-mounted computer, and a wearable device.

The implementation of each module in the signal processing apparatus provided in the embodiments of the present application may be in the form of a computer program. The computer program may be run on a terminal or a server. The program modules formed by the computer program may be stored on a memory of the communication terminal. Which when executed by a processor, performs the steps of the method described in the embodiments of the present application.

The embodiment of the application also provides a computer readable storage medium. One or more non-transitory computer-readable storage media containing computer-executable instructions that, when executed by one or more processors, cause the processors to perform the steps of the signal processing method.

A computer program product comprising instructions which, when run on a computer, cause the computer to perform a signal processing method.

Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

The above examples 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 present application. 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

1. A signal processing method applied to a communication terminal, the method comprising:

correspondingly constructing a plurality of characterization tables according to a plurality of adjacent channel leakage ratios of the transmitting signals, wherein the characterization tables comprise a mapping relation between preset power of a power amplifier in the communication terminal and minimum power supply voltage;

calibrating according to the plurality of characterization tables to correspondingly obtain a plurality of calibration data sets, wherein the calibration data sets carry identification information and comprise mapping relations between power information of the power amplifier and power supply voltage;

measuring first channel quality information according to the calibration data set currently adopted by the communication terminal; the value of the first channel quality indication is used for evaluating the uplink channel condition;

2. The method of claim 1, wherein after calibrating according to the plurality of characterization tables to obtain a plurality of calibration data sets, further comprising:

and identifying each calibration data group according to the adjacent channel leakage ratio to generate the identification information, wherein the identification information of the plurality of calibration data groups is sequenced according to a preset sequence.

3. The method of claim 1, wherein determining a target calibration data set from a plurality of calibration data sets based on the first channel quality information comprises:

acquiring identification information of the calibration data set currently adopted by the communication terminal;

determining a target calibration data set from a plurality of calibration data sets based on the identification information and the first channel quality information.

4. The method of claim 3, wherein determining a target calibration data set from a plurality of calibration data sets based on the identification information and the first channel quality information comprises:

measuring second channel quality information according to the calibration data set adopted by the communication terminal last time;

determining a trend of change of the first channel quality information relative to the second channel quality information;

and determining the target calibration data set according to the change trend and the identification information of the currently adopted calibration data set.

5. The method of claim 4, wherein if the trend of change is a decreasing trend, the identification information of the target calibration data set is less than or equal to the identification information of the currently employed calibration data set.

6. The method of claim 4, wherein if the trend of change is an increasing trend, the identification information of the target calibration data set is greater than or equal to the identification information of the currently employed calibration data set.

7. The method according to claim 5 or 6, wherein if the identification information of the target calibration data set is not the same as the identification information of the currently used calibration data set, the identification information of the target calibration data set is disposed adjacent to the identification information of the currently used calibration data set.

8. The method of claim 2, further comprising:

and the adjacent channel leakage ratio corresponding to the calibration data set adopted by the communication terminal for the first time is the maximum value.

9. A signal processing apparatus, characterized by comprising:

the system comprises an acquisition module, a detection module and a control module, wherein the acquisition module is used for correspondingly constructing a plurality of characterization tables according to a plurality of adjacent channel leakage ratios of a transmitting signal, and the characterization tables comprise a mapping relation between preset power of a power amplifier in a communication terminal and minimum power supply voltage; calibrating according to the plurality of characterization tables to correspondingly obtain a plurality of calibration data groups, wherein the calibration data groups carry identification information; the calibration data set comprises a mapping relation between power information of the power amplifier and a power supply voltage;

the measurement module is used for measuring first channel quality information according to the calibration data set currently adopted by the communication terminal; the value of the first channel quality indication is used for evaluating the uplink channel condition;

10. A communication terminal comprising a memory and a processor, the memory having stored therein a computer program which, when executed by the processor, causes the processor to carry out the steps of the signal processing method according to any one of claims 1 to 8.

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 signal processing method according to any one of claims 1 to 8.