CN116667947A - WiFi power calibration method and system based on domain socket - Google Patents
WiFi power calibration method and system based on domain socket Download PDFInfo
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- CN116667947A CN116667947A CN202310933680.1A CN202310933680A CN116667947A CN 116667947 A CN116667947 A CN 116667947A CN 202310933680 A CN202310933680 A CN 202310933680A CN 116667947 A CN116667947 A CN 116667947A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000012935 Averaging Methods 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/226—TPC being performed according to specific parameters taking into account previous information or commands using past references to control power, e.g. look-up-table
-
- 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
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measurement Of Current Or Voltage (AREA)
- Complex Calculations (AREA)
- Fuses (AREA)
Abstract
The application provides a WiFi power calibration method and a WiFi power calibration system based on domain sockets, wherein the method comprises the following steps: based on the index value, obtaining initial power of a product to be calibrated; obtaining a target index value by using the initial power, the initial index value, the step diameter and the target power value; obtaining a current power value of a product to be calibrated based on the target index value; and judging whether the current power of the product to be tested is in the calibration range, if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range. According to the application, by setting the index value and utilizing the average value, the influence of power fluctuation of the product to be side is reduced, and the accuracy of product transmitting power calibration is effectively improved.
Description
Technical Field
The application relates to the technical field of WiFi products, in particular to a WiFi power calibration method and system based on domain socket.
Background
In the field of WIFI product production, the product needs to be subjected to radio frequency power calibration before being used, and the output power of the product reaches a certain standard by adjusting the power Index value of the product, so that the product can work normally; however, since the power of the product fluctuates when transmitting power, the power generally fluctuates by about 1.5db in a general power calibration method, so that the power of the product after calibration has larger deviation from the target power, thereby resulting in insufficient calibration accuracy.
Disclosure of Invention
The application provides a WiFi power calibration method and a WiFi power calibration system based on a domain socket, which are used for solving the defect of lower calibration accuracy in the prior art, realizing effective reduction of fluctuation and improving the accuracy of a calibration result.
The application provides a WiFi power calibration method based on domain socket, which comprises the following steps:
based on the index value, obtaining initial power of a product to be calibrated;
obtaining a target index value by using the initial power, the initial index value, the step diameter and the target power value;
obtaining a current power value of a product to be calibrated based on the target index value;
and judging whether the current power of the product to be tested is in the calibration range, if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
In one possible embodiment, obtaining the initial power of the product to be calibrated based on the index value comprises:
giving an initial index value to the product to be tested;
grabbing the power of a product to be detected for n times to obtain n power values;
based on the n power values, an average algorithm is utilized to obtain an initial power.
In one possible implementation, the initial power is obtained using an averaging algorithm based on the n power values, including:
the maximum and minimum values of the n power values are removed.
In one possible embodiment, obtaining the initial power of the product to be calibrated based on the index value comprises:
grabbing the product to be detected for 5 times to obtain 5 power values;
comparing the sizes of the 5 power values, and removing the maximum value and the minimum value;
according to the average algorithm, an initial power value is obtained.
In one possible embodiment, obtaining the current power value of the product to be calibrated based on the target index value includes:
grabbing the product to be detected for n times;
removing the minimum and maximum values;
and obtaining the current power value by using an average algorithm.
The application also provides a WiFi power calibration system based on the domain socket, which comprises:
the index module is used for obtaining initial power of a product to be calibrated based on the index value, and obtaining a target index value by utilizing the initial power, the initial index value, the step size and the target power value;
the power module is used for obtaining the current power value of the product to be calibrated based on the target index value;
and the calibration module is used for judging whether the current power of the product to be tested is in the calibration range, and if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
In one possible implementation, the indexing module includes:
the assignment unit assigns an initial index value to the product to be tested;
the grabbing unit grabs the power of the product to be detected for n times to obtain n power values;
and the calculation unit is used for obtaining initial power by using an average algorithm based on the n power values.
In a possible embodiment, the calculation unit further comprises removing a maximum value and a minimum value of the n power values based on the n power values, and obtaining the initial power by using an average algorithm.
In one possible implementation, the calibration module includes:
the acquisition unit is used for grabbing the product to be detected n times;
an elimination unit that eliminates the minimum value and the maximum value;
and the operation unit is used for obtaining the current power value by using an average algorithm.
According to the WiFi power calibration method and system based on the domain socket, the index value is set, the power is repeatedly grasped n times, the minimum value and the maximum value are removed, the average value is taken, the influence of power fluctuation is effectively reduced, and meanwhile the accuracy of product transmitting power calibration is effectively improved.
Drawings
In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a WiFi power calibration method based on a domain socket according to the present application;
FIG. 2 is a flow chart of a method for obtaining initial power according to the present application;
FIG. 3 is a flow chart of a method for obtaining current power according to the present application;
FIG. 4 is a schematic diagram of data alignment before and after averaging according to the present application;
fig. 5 is a schematic structural diagram of a WiFi power calibration system based on a domain socket according to the present application;
fig. 6 is a second schematic structural diagram of a WiFi power calibration system based on domain socket according to the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
One method of domain socket based WiFi power calibration of the present application is described below in conjunction with fig. 1-4.
S1, obtaining initial power of a product to be calibrated based on the index value.
In step S1, the initial power of the product to be calibrated is obtained, which specifically includes:
s11, giving an initial index value to a product to be calibrated;
s12, grabbing the power of a product to be detected for n times to obtain n power values;
s13, obtaining initial power by using an average algorithm based on the n power values.
Specifically, an initial Index value is firstly given to a test product (DUT) to be calibrated, the Index value (Index value) is recorded as Index0, then the instrument is grabbed n times to obtain n power values, the n power values are Pwr0, pwr1 and Pwr2 … … Pwrn, after the n power values are sequenced according to the power value, the maximum power value and the minimum power are removed, based on the remaining n-2 power values, an average algorithm is utilized to calculate the initial Index value (Pwr-ave-0), and the problem that deviation occurs in subsequent calculation due to inaccurate grabbing power caused by power fluctuation can be effectively avoided through a method of calculating an average value.
Further, by the instruction of the chip transmit power, an initial Index value is set, which ranges from 35 to 50.
Further, parameters such as power, frequency offset and the like of the product to be calibrated are obtained through means such as existing equipment or software.
In the application, the power value of the meter is grasped 5 times.
S2, obtaining a Target Index value (Index-Target) by using the initial power, the initial Index value, the Step size Step and the Target power value (Target-Pwr).
Further, the stride is the Power difference between each Index value, which can be obtained by (Power 1-Power 2)/(Index 1-Index 2), where Power1 and Power2 are the powers corresponding to Index1 and Index2, respectively, and the stride is typically 0.5.
Further, the target index value is a target power or a target stride.
And S3, obtaining the current power value of the product to be calibrated based on the target index value.
In step S3, a current power value of the product to be calibrated is obtained, which specifically includes:
s31, grabbing a product to be detected for n times;
s32, removing the minimum value and the maximum value;
s33, obtaining the current power value by using an average algorithm.
Specifically, the Index value of a product to be calibrated of the DUT is set as a Target Index value (Index-Target), the instrument is grabbed n times to obtain n power values, after the n power values are sequenced according to the power value, the maximum power value and the minimum power value are removed, based on the remaining n-2 power values, an average algorithm is utilized to calculate the current power value, namely Pwr-ave-1.
And S4, judging whether the current power of the product to be tested is in the calibration range, and if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
If the current power value Pwr-ave-1 falls in the calibration range, the calibration is completed;
if the current power value Pwr-ave-1 is not in the calibration range, repeating the steps S2-S3 based on Pwr-ave-1 and Index-Target until the power meets the calibration range.
Further, the Pwr-ave-1 value is set as the initial power, the Index-Target value is set as the initial Index value, and the initial power and the initial Index value are substituted into the step S2 to perform operation.
As shown in fig. 4, according to the MTK (MediaTek Inc) chip scheme, the Index and Power correspond closely, wherein:
before taking the average value: the Index is 41, the emission power grabbed by the instrument is about 19 dbm, but the actual emission power is about 20.5 dbm, and the deviation is 1.5;
after averaging: the Index is 39, the emission power grabbed by the instrument is about 18.9 dbm, but the actual emission power is about 19.5 dbm; at this time, the deviation was 0.6 or less.
In the application, after the Index value is set, the power is repeatedly grabbed for 5 times, the influence of power fluctuation is reduced by a method of removing the minimum value and the maximum value and taking the average value, the power generally fluctuates by about 1.5db in a general power calibrating method, so that the power of a product after calibration has larger deviation from the target power, and the power calibrating method effectively reduces the deviation; according to the actual test statistical data, the deviation after the method is used is within 0.7, which is half of the common power calibration deviation, and the accuracy of the transmitting power of the product is effectively improved.
The description of the WiFi power calibration system based on a domain socket provided by the application is described below, and the WiFi power calibration system based on a domain socket described below and the WiFi power calibration method based on a domain socket described above can be referred to correspondingly.
Fig. 5 and 6 below describe a WiFi power calibration system based on a domain socket of the present application.
The system mainly comprises: an indexing module, a power module, and a calibration module.
The index module is used for obtaining initial power of a product to be calibrated based on the index value, and obtaining a target index value by utilizing the initial power, the initial index value, the step size and the target power value;
the power module is used for obtaining the current power value of the product to be calibrated based on the target index value;
and the calibration module is used for judging whether the current power of the product to be tested is in the calibration range, and if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
The system further comprises: a server (PC) and an RF tester CMW100.
The server is used for issuing telnet instructions to the products to be calibrated;
the product to be calibrated responds to the telnet instruction, and transmits the responded parameter data to the CME100 through the RF radio frequency line;
the RF tester is connected with the server through a serial port line, and the received parameter data is transmitted through the serial port line, and the RF tester circulates for 5 times at certain intervals.
Further, the server is connected with the product to be calibrated through a network cable.
In the application, the RF tester adopts a CMW100 type RF tester.
In one possible implementation, the indexing module includes:
the assignment unit assigns an initial index value to the product to be tested;
the grabbing unit grabs the power of the product to be detected for n times to obtain n power values;
and the calculation unit is used for obtaining initial power by using an average algorithm based on the n power values.
In a possible embodiment, the calculation unit further comprises removing a maximum value and a minimum value of the n power values based on the n power values, and obtaining the initial power by using an average algorithm.
In one possible implementation, the calibration module includes:
the acquisition unit is used for grabbing the product to be detected n times;
an elimination unit that eliminates the minimum value and the maximum value;
and the operation unit is used for obtaining the current power value by using an average algorithm.
Specifically, an initial Index value is firstly given to a test product (DUT) to be calibrated, the Index value (Index value) is recorded as Index0, then the instrument is grabbed n times to obtain n power values, the n power values are Pwr0, pwr1 and Pwr2 … … Pwrn, after the n power values are sequenced according to the power value, the maximum power value and the minimum power are removed, based on the remaining n-2 power values, an average algorithm is utilized to calculate and obtain an initial Index value (Pwr-ave-0), and the problem that deviation occurs in subsequent calculation due to inaccurate grabbing power caused by power fluctuation can be effectively avoided through a method of calculating an average value;
obtaining a Target Index value (Index-Target) by using the initial power, the initial Index value, the Step diameter Step and the Target power value (Target-Pwr);
setting an Index value of a product to be calibrated of the DUT as a Target Index value (Index-Target), grabbing the instrument n times to obtain n power values, sorting the n power values according to the power value, removing the maximum power value and the minimum power value, and calculating to obtain a current power value which is Pwr-ave-1 by using an average algorithm based on the remaining n-2 power values;
if the current power value Pwr-ave-1 falls in the calibration range, the calibration is completed;
if the current power value Pwr-ave-1 is not in the calibration range, repeating the steps S2-S3 based on Pwr-ave-1 and Index-Target until the power meets the calibration range.
According to the MTK (MediaTek Inc) chip scheme, the Index and Power correspond closely, wherein:
before taking the average value: the Index is 41, the emission power grabbed by the instrument is about 19 dbm, but the actual emission power is about 20.5 dbm, and the deviation is 1.5;
after averaging: the Index is 39, the emission power grabbed by the instrument is about 18.9 dbm, but the actual emission power is about 19.5 dbm; at this time, the deviation was 0.6 or less.
In the application, after the Index value is set, the power is repeatedly grabbed for 5 times, the influence of power fluctuation is reduced by a method of removing the minimum value and the maximum value and taking the average value, the power generally fluctuates by about 1.5db in a general power calibrating method, so that the power of a product after calibration has larger deviation from the target power, and the power calibrating method effectively reduces the deviation; according to the actual test statistical data, the deviation after the method is used is within 0.7, which is half of the common power calibration deviation, and the accuracy of the transmitting power of the product is effectively improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. A domain socket-based WiFi power calibration method, comprising:
based on the index value, obtaining initial power of a product to be calibrated;
obtaining a target index value by using the initial power, the initial index value, the step diameter and the target power value;
obtaining a current power value of a product to be calibrated based on the target index value;
and judging whether the current power of the product to be tested is in the calibration range, if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
2. The domain socket based WiFi power calibration method according to claim 1, wherein obtaining initial power of a product to be calibrated based on the index value comprises:
giving an initial index value to the product to be tested;
grabbing the power of a product to be detected for n times to obtain n power values;
based on the n power values, an average algorithm is utilized to obtain an initial power.
3. The domain socket based WiFi power calibration method according to claim 2, wherein obtaining initial power using an averaging algorithm based on n power values comprises:
the maximum and minimum values of the n power values are removed.
4. The domain socket based WiFi power calibration method according to claim 3, wherein obtaining initial power of a product to be calibrated based on the index value comprises:
grabbing the product to be detected for 5 times to obtain 5 power values;
comparing the sizes of the 5 power values, and removing the maximum value and the minimum value;
according to the average algorithm, an initial power value is obtained.
5. The domain socket based WiFi power calibration method according to claim 1, wherein obtaining the current power value of the product to be calibrated based on the target index value comprises:
grabbing the product to be detected for n times;
removing the minimum and maximum values;
and obtaining the current power value by using an average algorithm.
6. The calibration system of the domain socket based WiFi power calibration method according to any of claims 1-5, comprising:
the index module is used for obtaining initial power of a product to be calibrated based on the index value, and obtaining a target index value by utilizing the initial power, the initial index value, the step size and the target power value;
the power module is used for obtaining the current power value of the product to be calibrated based on the target index value;
and the calibration module is used for judging whether the current power of the product to be tested is in the calibration range, and if not, repeatedly obtaining the target index value and the current power value until the current power value is in the calibration range.
7. The calibration system of claim 6, wherein the indexing module comprises:
the assignment unit assigns an initial index value to the product to be tested;
the grabbing unit grabs the power of the product to be detected for n times to obtain n power values;
and the calculation unit is used for obtaining initial power by using an average algorithm based on the n power values.
8. The calibration system of claim 7, wherein the computing unit further comprises removing a maximum and a minimum of the n power values based on the n power values, and obtaining the initial power using an averaging algorithm.
9. The calibration system of claim 7, wherein the calibration module comprises:
the acquisition unit is used for grabbing the product to be detected n times;
an elimination unit that eliminates the minimum value and the maximum value;
and the operation unit is used for obtaining the current power value by using an average algorithm.
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| CN202310933680.1A CN116667947A (en) | 2023-07-27 | 2023-07-27 | WiFi power calibration method and system based on domain socket |
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| CN202310933680.1A CN116667947A (en) | 2023-07-27 | 2023-07-27 | WiFi power calibration method and system based on domain socket |
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| CN111563042A (en) * | 2020-05-09 | 2020-08-21 | 中国科学院微电子研究所 | Wireless performance test system and method applied to Wi-Fi5 chip |
| CN114172593A (en) * | 2021-11-04 | 2022-03-11 | 杭州涂鸦信息技术有限公司 | Power calibration method, calibration equipment and calibration system of wireless module |
| CN115638868A (en) * | 2022-07-08 | 2023-01-24 | 苏州捷杰传感技术有限公司 | Automatic calibration method and system for novel vibration sensor |
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2023
- 2023-07-27 CN CN202310933680.1A patent/CN116667947A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20180092048A1 (en) * | 2016-09-23 | 2018-03-29 | Qualcomm Incorporated | Transmit power gain calibration and compensation |
| CN111158473A (en) * | 2019-12-19 | 2020-05-15 | 瑞声科技(新加坡)有限公司 | Signal calibration method, device, equipment and storage medium |
| CN111563042A (en) * | 2020-05-09 | 2020-08-21 | 中国科学院微电子研究所 | Wireless performance test system and method applied to Wi-Fi5 chip |
| CN114172593A (en) * | 2021-11-04 | 2022-03-11 | 杭州涂鸦信息技术有限公司 | Power calibration method, calibration equipment and calibration system of wireless module |
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