Method for calibrating the battery by using radio frequency calibration of mobile phone

专利摘要:
PURPOSE: A battery calibration method using RF calibration of a terminal is provided to perform calibration of a battery according to an RF calibration value by dividing a battery power voltage and storing them. CONSTITUTION: A signal generator(10) generates a test signal similar to an input signal of a transceiver of a base station and inputs it to a receiving input port of a transceiver(20) of a terminal(50) in a receiving mode. A power level and frequency of receiving mode are determined by a PC(40). The transceiver(20) down-converts the test signal, variably attenuates it, separates it into an I(In phase) signal and a Q(Quadrature phase) signal and outputs them. A transceiver controller(30) of the terminal(50) detects a signal outputted from the transceiver(20) and determines an AGC(Auto Gain Control) voltage value in order to control an attenuation amount of a variable attenuator.
公开号:KR20040043023A
申请号:KR1020020071014
申请日:2002-11-15
公开日:2004-05-22
发明作者:이상준
申请人:엘지전자 주식회사；
IPC主号:

专利说明:

Battery calibration using RF calibration of terminal {Method for calibrating the battery by using radio frequency calibration of mobile phone}
[2] The present invention relates to a method for calibrating a battery voltage of a mobile communication terminal, and in particular, when performing the RF calibration in a GSM terminal, the battery power voltage is divided into digital signals and stored in advance, and then the calibration of the battery by the RF calibration value. The present invention relates to a battery calibration method using an RF calibration of a mobile communication terminal for rapid progress.
[3] In the case of the GSM (Global Systems for Mobile communication) terminal, which is currently being serviced as a second generation mobile communication system in Europe, and the GPRS (General Packet Radio Service) terminal, which is commercially serviced as a 2.5 generation mobile communication system, power is supplied to the terminal. Batteries must be battery calibrated after manufacture.
[4] The battery calibration process refers to a process of dividing a voltage from a cutoff voltage of the battery (usually 3.35 volts) to a full charge limit voltage (usually 4.2 volts) at predetermined intervals and storing the stored voltage in the battery.
[5] In processing the battery calibration process as described above, if a conventional PC command is given to a target terminal phone to read an ADC value in which an analog signal is converted into a digital signal, the terminal phone reads the ADC value according to this command. Read and transfer to the PC.
[6] The PC then performs a predetermined process using the ADC value read from the terminal phone and finds the ADC value closest to the true value.
[7] Through the above process, the ADC value is found and the ADC value is downloaded to the terminal phone and stored.
[8] In performing the calibration process of the terminal phone battery as described above, conventionally, the voltage from the cutoff voltage of the battery (usually 3.35 volts) to the full charge limit voltage (typically 4.2 volts) is divided into predetermined intervals and stored in the battery. Read and execute ADC value of each voltage at two voltages.
[9] This conventional method has a problem that it takes a lot of calibration time by calibrating only two points using the characteristic that the ADC value according to the battery voltage is precedent and calculating and applying the remaining calibration values.
[10] Therefore, the present invention has been proposed to solve the above-described problems, and since the RF calibration is performed prior to the calibration of the battery power voltage in the GSM terminal, the digital signal of the eight points is divided in advance and stored in advance. The purpose of the present invention is to provide a battery calibration method of a mobile communication terminal for rapidly performing a calibration of a battery according to this value.
[11] In order to achieve the above object, the present invention provides a method for using the RF calibration of the terminal as a battery calibration,
[12] An RF calibration step of calibrating a reception mode signal received from a signal generator between a transceiver of a terminal and a transceiver control unit under the control of a computer (PC);
[13] An ADC value storage step of storing an ADC value, in which an analog voltage value is converted into a digital signal, during the RF calibration in a storage device of a terminal;
[14] A computer transmission step of transmitting the ADC value stored in the memory of the terminal together with the RF calibration value to the computer before the RF calibration is finished;
[15] The pattern search step of finding a pattern for calibrating the battery of the terminal using the ADC value received from the terminal,
[16] And a terminal download step of downloading the RF calibration value to the terminal together with the pattern value found in the pattern search step.
[17] The pattern in the calibration process is varied according to the voltage value,
[18] A slope value is used in which the analog voltage signal value and the digital signal value are directly proportional to each other.
[1] 1 is a block diagram showing the operation of the battery calibration process of the present invention.
[19] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[20] In the present invention, after the terminal phone is manufactured, RF calibration must first be performed, and battery calibration must be performed at a later time. Since the RF calibration is performed at a constant voltage, the digital value of the voltage is stored in the terminal phone. After the RF calibration is completed, the battery is quickly calibrated using the digital value.
[21] Figure 1 shows the configuration for the RF and terminal battery calibration according to the present invention.
[22] According to FIG. 1, the signal generator 10 generates a test signal similar to the transceiver input signal of the base station and inputs it to the reception input of the transceiver 20 of the terminal 50 in a reception mode.
[23] The power level and frequency of the reception mode are determined by the PC 40.
[24] The transceiver 20 is frequency down-converted and variably attenuated the test signal, and then separated and output into an I (In Phase) signal and a Q (Quadrature Phase) signal.
[25] The transceiver control unit 30 of the terminal 50 detects a signal output from the transceiver 20 and adjusts an AGC (Auto Gain Control) control voltage value for controlling an attenuation amount of a variable attenuator in the transceiver 20. Decide
[26] The tester changes the output signal level of the signal generator 10 within the reception input dynamic range of the transceiver and collects correlation data of variable attenuation control values for the input signal of the transceiver. The data is stored as calibration data. In actual operation of the base station, the transceiver determines the variable attenuation control value according to the measured calibration data.
[27] The signal generator 10 and the PC 40 are connected by a general purpose interface bus (GPIB).
[28] Here, the RF calibration process is as follows.
[29] If the ADC value corresponding to the digital conversion value corresponding to the 3-volt voltage value of the analog signal is 300, the ADC value corresponding to the 4-volt voltage value is 400. Thus, the slope of the ADC value corresponding to the analog voltage value is constant. The corresponding values of each other are constantly increased at the same rate.
[30] Therefore, if the above process is performed 8 times in RF calibration and patterned, this pattern can be used in various ways.
[31] In the present invention, the battery calibration of the terminal 50 is made into eight points. The eight points divide the voltage from the cutoff voltage of the battery (usually 3.35 volts) to the full charge limit voltage (usually 4.2 volts) at regular intervals.
[32] In other words, it can be divided into 8 points from 4.2 volts to 4.2 volts by dividing the intervals from 3.5 volts to 0.1 volts. Since the patterns corresponding to these 8 points are created in the RF calibration process, the battery calibration process does not need to be completed after the RF calibration process. This reduces the number of processes and saves time.
[33] As described above, since the RF calibration is performed at the PC 40 at a constant voltage, the pattern at this time is read from the ADC value of the battery voltage in the terminal 50 and accurately stored in the memory device in the terminal 50.
[34] Then, the ADC value stored in the memory device in the terminal 50 together with the RF calibration value is sent to the PC 40 before the RF calibration is completed.
[35] Then, the PC 40 finds a pattern of 8 points using the ADC value received from the terminal.
[36] After the above process is completed, if the pattern value of 8 points found using the ADC value together with the RF calibration value is downloaded to the terminal 50, the battery of the terminal corresponds to the pattern of 8 points for optimal calibration. do.
[37] In this way, all chips have a constant pattern and slope according to the analog voltage value. Therefore, the digital value pattern of the terminal battery is applied using the voltage value used in the RF calibration.
[38] As described above, the present invention uses the characteristics of a constant voltage when performing RF calibration, and at this time, the digital value of the voltage stored in the terminal phone is stored at 8 points, and after the RF calibration is completed, the 8 points of digital Value to calibrate the battery,
[39] When the RF calibration is performed at a constant voltage voltage, the ADC value is stored and then the value is stored using the pattern according to the voltage voltage previously stored without the need for battery calibration. This reduces the time to provide the effect.

权利要求:
Claims (3)
[1" claim-type="Currently amended] In the method of using the RF calibration of the terminal as battery calibration,
An RF calibration step of calibrating a reception mode signal received from a signal generator between a transceiver of a terminal and a transceiver control unit under the control of a computer (PC);
An ADC value storage step of storing an ADC value, in which an analog voltage value is converted into a digital signal, during the RF calibration in a storage device of a terminal;
A computer transmission step of transmitting the ADC value stored in the memory of the terminal together with the RF calibration value to the computer before the RF calibration is finished;
The pattern search step of finding a pattern for calibrating the battery of the terminal using the ADC value received from the terminal,
And a terminal download step of downloading the RF calibration value to the terminal together with the pattern value found in the pattern search step.
[2" claim-type="Currently amended] The method according to claim 1,
The pattern in the calibration process is varied according to the voltage value,
A battery calibration method using RF calibration of a terminal characterized by using a slope value in which the analog voltage signal value and the digital signal value are directly proportional to each other.
[3" claim-type="Currently amended] The method according to claim 1,
The battery calibration method is 8 points, the 8 points battery calibration method using the RF calibration of the terminal characterized in that the voltage from the cutoff voltage of the battery to the full charge limit voltage divided by a predetermined interval.

类似技术:

---

公开号 | 公开日 | 专利标题

---

JP5694392B2|2015-04-01|Transmitter and method for calibrating the power of a signal output from a transmitter

---

US9094840B2|2015-07-28|Methods for testing receiver sensitivity of wireless electronic devices

---

US9853663B2|2017-12-26|Method and apparatus for managing operations of a communication device

---

US8831529B2|2014-09-09|Wireless communications circuitry with temperature compensation

---

US8923779B2|2014-12-30|Systems and methods for tuning an antenna for a frequency modulation transceiver

---

US8326340B2|2012-12-04|Transmit power controller

---

US7668523B2|2010-02-23|Adaptive AGC in a wireless network receiver

---

CN1242557C|2006-02-15|Radio receiver and radio receiving method

---

DE69917887T2|2005-06-30|Method and apparatus for configuring mobile phone phones

---

US8942313B2|2015-01-27|Group delay calibration method for power amplifier envelope tracking

---

KR101241064B1|2013-03-12|DC offset correction system for a receiver with baseband gain control

---

KR101564280B1|2015-10-30|Transmit power calibration in a communication system

---

US8880015B2|2014-11-04|Dynamic impedance matching in wireless communications

---

DE602004009432T2|2008-07-24|Gain compensation

---

US7242910B2|2007-07-10|Self-calibrating radio

---

US8270907B2|2012-09-18|Method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals

---

JP4343216B2|2009-10-14|Automatic gain control with two power detectors

---

US3983492A|1976-09-28|Frequency scan and lock circuit for mobile radio channel selection

---

RU2297714C2|2007-04-20|System and mode for calibration of control over the power of a radio communication arrangement

---

US5423070A|1995-06-06|Logic controlled tuning signal level and deviation compensation in a radio telephone

---

RU2308814C2|2007-10-20|Two-mode egprs transmitter with multiple channel intervals

---

CN101047915B|2010-12-08|Method and device for automatic calibration of third-generation TD-SCDMA mobile terminal

---

KR100748732B1|2007-08-13|Wireless communications module, communication terminal and impedance matching method

---

US20030114124A1|2003-06-19|Transmission output power control device for use in a burst transmitter and control method

---

US20050162307A1|2005-07-28|Satellite-positioning signal receiving device

同族专利:

---

公开号 | 公开日

---

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

法律状态:
2002-11-15|Application filed by 엘지전자 주식회사

---

2002-11-15|Priority to KR1020020071014A

---

2004-05-22|Publication of KR20040043023A

优先权:

---

申请号 | 申请日 | 专利标题

---

KR1020020071014A|KR20040043023A|2002-11-15|2002-11-15|Method for calibrating the battery by using radio frequency calibration of mobile phone|