CN105338598B

CN105338598B - Power calibration method and terminal

Info

Publication number: CN105338598B
Application number: CN201410366678.1A
Authority: CN
Inventors: 段红光; 汪代云
Original assignee: Keen Chongqing Microelectronics Technology Co ltd
Current assignee: Keen (Chongqing) Microelectronics Technology Co., Ltd.
Priority date: 2014-07-29
Filing date: 2014-07-29
Publication date: 2020-10-20
Anticipated expiration: 2034-07-29
Also published as: CN105338598A

Abstract

The embodiment of the invention discloses a power calibration method and a terminal, and the method comprises the following steps: the terminal transmits power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, inquiring P₁First operating voltage V of corresponding PA₁(ii) a By P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network; according to P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂(ii) a Inquiring P according to the corresponding relation₂Second operating voltage V of corresponding PA₂(ii) a By P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network. The embodiment of the invention reduces the PA loss of the terminal, has low requirement on the realization condition and simple and effective realization mode.

Description

Power calibration method and terminal

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a power calibration method and a terminal.

Background

In a mobile communication system, as the user is convenient to use, the most obvious characteristic of the mobile terminal is that mobile access needs to be supported, and communication is carried out in the moving process, the power consumption of the mobile terminal is a great problem, and the mobile terminal cannot be charged in real time in the using process, so the power consumption performance is an important performance index of the mobile terminal.

From the power consumption analysis of the mobile terminal, the power consumption of the mobile terminal mainly comes from a baseband, a screen and a radio frequency, wherein a radio frequency circuit consumes a large amount of electricity, and a Power Amplifier (PA) for transmitting signals in a communication component. When the mobile device is too far away from the base station to transmit signals successfully, the PA consumes about 1.5 watts of power. Therefore, how to reduce PA power consumption and achieve high power added efficiency in power saving of rf circuits is an important issue.

Under the condition, the mainstream mode for strengthening the efficiency of the LTE multiband PA at present is to track signal Envelope (ET), that is, to establish a link between the working voltage of the power amplifier and the input radio frequency signal so as to enable the working voltage and the input radio frequency signal to follow each other in real time, thereby improving the working efficiency of the power amplifier.

However, the realization condition for reducing the PA loss of the terminal by the ET technology is high, which causes very difficult realization, specifically: the terminal adopts fixed voltage to provide for the PA no matter what transmission power is adopted, and in order to achieve the characteristic of robustness, the terminal can only select the maximum working voltage supported by the PA so as to meet different transmission power requirements; at this time, the terminal is required to support a high-speed voltage variation device (DC-DC), an operating frequency of at least 400MHz is required, and it is also required to ensure that voltage variation can be changed synchronously with an envelope of a radio frequency transmission signal, which puts high requirements on terminal implementation.

Disclosure of Invention

The embodiment of the invention provides a power calibration method and a terminal, which have low requirements on implementation conditions for reducing PA loss of the terminal and are simple and effective in implementation mode.

A first aspect of an embodiment of the present invention provides a power calibration method, including:

the terminal transmits power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁；

The terminal adopts the P₁And the first operating voltage V₁Transmitting the first data block on a radio channel allocated by a network;

the terminal is according to the P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂；

The terminal inquires the P according to the corresponding relation₂Second operating voltage V of corresponding PA₂；

The terminal adopts the P₂And the second operating voltage V₂And transmitting the second data block on a radio channel allocated by a network.

A second aspect of an embodiment of the present invention provides a terminal, including:

first queryA unit for determining a transmission power P of the first data block according to a predetermined₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁；

A first transmission unit for employing the P₁And the first operating voltage V₁Transmitting the first data block on a radio channel allocated by a network;

a calculation unit for calculating P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂；

A second query unit for querying the P according to the corresponding relationship₂Second operating voltage V of corresponding PA₂；

A second transmission unit for employing the P₂And the second operating voltage V₂And transmitting the second data block on a radio channel allocated by a network.

According to the technical scheme, the embodiment of the invention has the following advantages:

when a terminal sends a data block each time, the working voltage corresponding to the sending power is inquired according to the corresponding relation between the predetermined sending power of the data block, the preset sending power of the terminal and the working voltage of a power amplifier PA, so that the working voltage of the PA corresponding to the sending power P is selected by the terminal at the sending power.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a power calibration method according to an embodiment of the invention;

FIG. 2 is a schematic diagram of another embodiment of a power calibration method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of another embodiment of a power calibration method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of another embodiment of a power calibration method according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of another embodiment of a power calibration method according to an embodiment of the present invention;

FIG. 6 is a diagram of an embodiment of a terminal in an embodiment of the invention;

fig. 7 is a schematic diagram of another embodiment of the terminal in the embodiment of the present invention;

fig. 8 is a schematic diagram of an embodiment of a terminal establishing unit in the embodiment of the present invention.

Detailed Description

The embodiment of the invention provides a power calibration method and a terminal, which reduce PA energy consumption of the terminal and implementation conditions, and make the implementation mode simple and effective.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, an embodiment of a power calibration method according to an embodiment of the present invention includes:

101. the terminal transmits power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, inquiring P₁First operating voltage V of corresponding PA₁；

In this embodiment, when the terminal needs to transmit the first data block, the terminal may determine the power P that needs to be transmitted₁The determination can be made by the formula P₁＝(P_{send_pilot}-P_{rx_pilot})+P_{expect_rxlevel}Wherein P is_{send_pilot}、P_{expect_rxlevel}When the network broadcasts the message, the terminal can obtain the transmitting power of the broadcast pilot channel and the minimum receiving power of the random channel expected by the network, P_{rx_pilot}Broadcast pilot channel power, (P) obtained for terminal_{send_pilot}-P_{rx_pilot}) For path loss in wireless communication, different communication systems have different requirements, P_{send_pilot}、P_{expect_rxlevel}、P_{rx_pilot}The value of (A) is different, and the specific value is not limited herein.

It should be noted that, in the preset correspondence between the terminal transmission power and the operating voltage of the power amplifier PA, the terminal transmission power and the operating voltage of the power amplifier PA are in one-to-one correspondence, and according to the correspondence and the known P₁I.e. the first operating voltage V of the PA can be queried₁。

102. Terminal adopts P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network;

in this embodiment, when the terminal sends the data block, the network allocates the radio resource so that the terminal can use the transmission power P₁Transmitting data block on the allocated wireless resource, wherein the working voltage of PA is V₁。

It is to be noted thatWhen the terminal sends the data block, the network allocates the wireless resource to make the terminal adopt the transmitting power P₁And transmitting the data block on the allocated radio resource, wherein the specific transmission mode and process are not limited here.

103. Terminal according to P₁Calculating and network-transmitted data block transmission power adjustment request transmission power P required for transmitting second data block₂；

It should be noted that, the network may interpret the data block from the terminal to determine the quality of the data block, and the method of interpreting the data block from the terminal to determine the quality of the data block may also be other methods besides the method of checking and determining the Cyclic Redundancy Check (CRC) of the data block, for example, a method of measuring and determining whether correct channel decoding is possible by using signal-to-noise ratio (SNR), or may also be used in combination with the above methods, and different means are adopted according to different communication networks.

The network can judge whether the terminal transmission power is too high or too low according to the determined data block quality, can determine a transmission power control word (TPC) value according to the acquired terminal transmission power condition, the TPC value is used for determining a power adjustment quantity, and the specific mode and process for determining the TPC value by the network are not limited here.

After determining the TPC value, the network sends a data block transmission power adjustment request to the terminal, wherein the data block transmission power adjustment request comprises the TPC value;

the TPC value and the power adjustment quantity have a certain corresponding relation, and the terminal can determine the corresponding power adjustment quantity according to the corresponding relation.

It can be understood that, the terminal determines the power adjustment amount according to the TPC value in the data block transmission power adjustment request by using a method of making the power adjustment amount be the same as the TPC value according to the TPC value, and in practical applications, the power adjustment amount may also be determined by using other manners, for example, determining the power adjustment amount by adding or subtracting a preset fixed value (e.g. 0.1) according to the TPC value, as long as the power adjustment amount is determined according to the TPC value, and the specific determination manner is not limited herein.

Terminal according to P₁And the corresponding power adjustment amount can be calculated to obtain P2, in all embodiments of the present invention, the terminal is based on the power adjustment amount and P₁Calculating a transmission power P required for transmitting the second data block₂The method can be adopted in which the terminal adjusts the amount Δ P and P according to the power₁The sum of the values calculates the transmission power P required for transmitting the second data block₂I.e. P₂＝P₁+ Δ P, in practical applications, may also be calculated in other ways, for example at P₂＝P₁Adding a few small variables to the + Δ P to make P₂The calculation of (A) is more accurate, and in the embodiment, only according to P₁The value can be calculated as P₂The value is not limited here, and the specific calculation method is not limited here.

104. The terminal inquires P according to the corresponding relation between the terminal sending power and the working voltage of the power amplifier PA₂Second operating voltage V of corresponding PA₂；

In the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, the terminal sending power and the working voltage of the power amplifier PA are in one-to-one correspondence, and the known P is obtained according to the corresponding relation₂I.e. the first operating voltage V of the PA can be queried₂。

105. Terminal adopts P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network.

In this embodiment, when the terminal sends the data block, the network allocates the radio resource so that the terminal can use the transmission power P₂Transmitting the second data block on the allocated wireless resource, wherein the working voltage of the PA is V₂。

In this embodiment, when the terminal sends a data block each time, the terminal queries the working voltage corresponding to the sending power according to the corresponding relationship between the predetermined sending power of the data block, the preset sending power of the terminal, and the working voltage of the PA, so that the terminal selects the corresponding working voltage of the PA for the sending power P.

In the embodiment illustrated in fig. 1, before using the preset correspondence table between the terminal transmission power and the operating voltage of the PA, the correspondence table between the terminal transmission power and the operating voltage of the PA needs to be established in advance, it should be noted that, in all embodiments of the present invention, it is not necessary to repeatedly perform the process each time to establish the correspondence table between the terminal transmission power and the operating voltage of the PA, after establishing the correspondence table between the terminal transmission power and the operating voltage of the PA, the correspondence table between the terminal transmission power and the operating voltage of the PA may be directly queried and used in the subsequent data block transmission, and the correspondence table between the terminal transmission power and the operating voltage of the PA may be periodically updated or supplemented, reestablished, and the.

Referring to fig. 2, the following process of adding a pre-established correspondence table between the terminal transmission power and the operating voltage of the PA is described in detail to another embodiment of the power calibration method of the present invention, including:

201. operating at terminal PA at maximum nominal operating voltage V_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

in this embodiment, a conventional Automatic Power Control (APC) radio frequency comprehensive measurement and calibration method for a terminal is adopted to obtain a PA operating at a nominal operating voltage V_maxLower transmission power P_kAnd APC_kThe correspondence table is shown in the following table 1:

table 1: terminal at working voltage V_maxLower transmission power P_kAnd APC_kCorrespondence table

202. According to P_kAnd APC_kAnd establishing a corresponding relation table of the terminal transmitting power and the working voltage of the PA according to the value corresponding relation table.

203. The terminal determines the first data block according to the preset dataTransmit power P₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, inquiring P₁First operating voltage V of corresponding PA₁；

204. Terminal adopts P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network;

It should be noted that, when the terminal sends the data block, the network allocates the radio resource so that the terminal can use the transmission power P₁And transmitting the data block on the allocated radio resource, wherein the specific transmission mode and process are not limited here.

205. Terminal according to P₁Calculating andadjusting the transmission power P required for requesting the transmission of a second data block by the transmission power of a data block transmitted by the network₂；

Terminal according to P₁And the corresponding power adjustment amount can be calculated to obtain P2, in all embodiments of the present invention, the terminal is based on the power adjustment amount and P₁Calculating a transmission power P required for transmitting the second data block₂The method can be adopted in which the terminal adjusts the amount Δ P and P according to the power₁Sum of values calculation sendingRequired transmission power P of the second data block₂I.e. P₂＝P₁+ Δ P, in practical applications, may also be calculated in other ways, for example at P₂＝P₁Adding a few small variables to the + Δ P to make P₂The calculation of (A) is more accurate, and in the embodiment, only according to P₁The value can be calculated as P₂The value is not limited here, and the specific calculation method is not limited here.

206. The terminal inquires P according to the corresponding relation between the terminal sending power and the working voltage of the power amplifier PA₂Second operating voltage V of corresponding PA₂；

207. Terminal adopts P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network.

In this embodiment, the terminal transmits power P according to the determined first data block₁Sending a first data block, and adjusting the sending power P of a second data block to be sent according to a sending data block sending power adjustment request including a TPC value returned by a network₂The transmission power is adjusted in real time and tracked according to the transmission of the previous data block each time, so that the loss of the PA of the terminal is reduced, and meanwhile, the working voltage corresponding to the transmission power of the PA is adjusted in each power control period according to the characteristics of the power control period of the wireless communication system, so that the working voltage provided by the PA by the terminal just meets the requirement of the transmission power of the PA, the condition that the PA adopts the fixed maximum working voltage is avoided, and the real working voltage is reducedUnder the existing conditions, the realization is simpler and more effective, and secondly, the specific mode of establishing the working voltage corresponding table of the terminal sending power and the PA is added and described, so that the realization mode is more flexible.

In the embodiment described in fig. 2, the correspondence table between the transmission power of the terminal and the APC value is additionally established, and the establishment of the correspondence table can be based on the operating voltage adjustment value Δ V of the PA of the terminal_mHas two different values, wherein, the value of the delta V is different_mFor the non-zero value set by the user, two implementation manners are respectively explained as follows:

first, working voltage adjustment value DeltaV of terminal PA_m＜0；

Referring to fig. 3, another embodiment of the power calibration method of the present invention includes:

301. at terminal PA at maximum operating voltage V_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

in this embodiment, a conventional Automatic Power Control (APC) radio frequency comprehensive measurement and calibration method for a terminal is adopted to obtain a PA operating at a nominal operating voltage V_maxThe following transmission power P and APC correspondence table is shown in table 1 in the embodiment described in fig. 3.

302. Setting the PA operating voltage V of the terminal_m＝V_max+△V_mSequentially adjusting the working voltage V of the terminal PA_m；

Wherein, V_maxFor maximum working voltage, DeltaV, of terminal PA_mD, setting delta V (m-1) as a set basic voltage adjustment quantity, wherein the delta V is less than 0; delta V_mThe value is the adjustment range of the working voltage of PA each time, the size of a basic adjustment quantity DeltaV can be preset according to requirements, for example, DeltaV can be set to-0.1V, and the adjustment range is set according to DeltaV_mWorking voltage V is calculated as delta V x (m-1)_mAdjustment quantity of time Δ V_mE.g. V₁The method comprises the following steps: delta V₁＝△V，V₂The method comprises the following steps: delta V₂Δ V × (2-1) ═ Δ V, …, Δ V is recalculated each time step 302 is performed_mHere, as long as Δ V can be calculated_mThe value of (a) is,specific Delta V_mThe calculation method of (2) is not particularly limited herein.

303. According to said P_kAnd APC_kTable of value correspondences, working voltage V at terminal PA_mThen, finding P and APC groups meeting the PA performance requirement;

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement;

it should be noted that this step is performed according to the terminal PA operating at the nominal operating voltage V_maxThe corresponding relation table of transmitting power P and APC at each working voltage V of terminal PA_mThen, P, APC groups satisfying PA performance are found in sequence, and V satisfying PA performance is found_mP, APC.

In practical operation, whether the performance requirement is met is mainly evaluated by EVM index and bit error rate of the transmitter, and in practical application, the evaluation can be carried out only by checking the error rate at V_mTerminal transmitting power P under working voltage_kAnd APC_kWhether the performance requirement is met or not, the specific checking mode is not limited here.

304. Judging whether P and APC groups meeting the PA performance requirements exist, if so, returning to the step 302, and if not, finishing the search;

when adjusting Δ V_mThe value of which is such that the PA operating voltage is successively reduced to a minimum operating voltage V_minWhen both the P and APC groups corresponding to the minimum transmitting power of the terminal can not meet the PA performance requirement, namely the current V_mAnd when the P and APC group meeting the PA performance requirement does not exist, finishing the search.

305. Judging the working voltage V of the PA corresponding to each P and APC group meeting the PA performance requirement found in the step 303_mIf there are a plurality of the test results, if yes, execute step 306, otherwise execute step 307;

306. selecting the minimum voltage value of the working voltages of the plurality of PAs, and executing step 307;

307. according to the operating voltage V at the corresponding PA_mP and APC groups found below that meet PA performance requirementsAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value.

As shown in table 2 below, in the correspondence table, the transmission power is arranged from high to low, and in practical applications, the correspondence table of the PA operating voltage, the terminal transmission power, and the APC value may also be established by using other arrangement manners, for example, the transmission power is arranged from low to high, as long as the only correspondence table of the PA operating voltage, the terminal transmission power, and the APC value is determined, and the specific arrangement manner is not limited herein.

Table 2: the terminal can support the maximum transmitting power under different PA working voltages

The implementation process after the corresponding relation table of the terminal transmission power and the working voltage of the PA is established in this embodiment is the same as the implementation process after the corresponding relation table of the terminal transmission power and the working voltage of the PA is established in the embodiment shown in fig. 2 (steps 203 to 207), and details are not repeated here.

In the embodiment shown in FIG. 3, according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding a specific set of P and APC that meets the PA performance requirements may be:

according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mTransmitting P with minimum power from the terminal_kFirstly, checking whether the terminal transmitting power P and APC group setting meets the PA performance requirement in sequence, and finding out the P and APC group which can not meet the PA performance requirement, so that the last P and APC group checked last time is the last group which can meet the PA performance requirement, namely finding out the current V_mThe following sets of P and APC that meet the PA performance requirements.

It will be appreciated that in practical applications, other ways may be used as long as the current V can be found_mThe following sets of P and APC that satisfy the PA performance requirements are not specifically limited herein.

II,Working voltage adjustment value delta V of terminal PA_m＞0；

Referring to fig. 4, another embodiment of the power calibration method of the present invention includes:

401. at terminal PA at maximum operating voltage V_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

in this embodiment, a conventional Automatic Power Control (APC) radio frequency comprehensive measurement and calibration method for a terminal is adopted to obtain a PA operating at a nominal operating voltage V_maxThe following table of the correspondence between the transmission power P and the APC is shown in table 1 in the embodiment described in fig. 2.

402. Setting the PA operating voltage V of the terminal_m＝V_min+△V_mSequentially adjusting the working voltage V of the terminal PA_m；

Wherein, V_minFor terminal PA minimum operating voltage, Δ V_mD, forming a voltage value of the reference voltage, wherein the voltage value is equal to delta V (m-1), and delta V is a set basic voltage adjustment quantity and is more than 0; delta V is a set basic voltage adjustment quantity, and is less than 0; delta V_mThe value is the adjustment range of the working voltage of PA each time, the size of a basic adjustment quantity DeltaV can be preset according to requirements, for example, DeltaV can be set to be 0.1V, and the adjustment range is set according to DeltaV_mWorking voltage V is calculated as delta V x (m-1)_mAdjustment quantity of time Δ V_mE.g. V₁The method comprises the following steps: delta V₁＝△V，V₂The method comprises the following steps: delta V₂Each time step 402 is performed, Δ V is recalculated, …_mHere, as long as Δ V can be calculated_mOf (1), specifically Δ V_mThe calculation method of (2) is not particularly limited herein.

403. According to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement;

according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement;

it should be noted that this step is based on the fact that the terminal PA operates at its nominal operating modeOperating voltage V_maxThe corresponding relation table of transmitting power P and APC at each working voltage V of terminal PA_mThen, P, APC groups satisfying PA performance are found in sequence, and V satisfying PA performance is found_mP, APC.

404. Judging whether P and APC groups meeting the PA performance requirements exist, if so, returning to the step 402, and if not, finishing the search;

when adjusting Δ V_mThe value of which is such that the PA operating voltage increases successively up to a maximum operating voltage V_maxWhen both the P and APC groups corresponding to the maximum transmission power of the terminal can not meet the PA performance requirement, that is, the current V_mWhen no P and APC group meeting the PA performance requirement exists, the search is completed;

405. judging the operating voltage V of the PA corresponding to each P and APC group meeting the PA performance requirement found in step 403_mIf so, go to step 406, otherwise go to step 407;

406. selecting the minimum voltage value of the working voltages of the plurality of PAs, and executing step 407;

407. according to the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

As shown in table 2, the transmission power is arranged from high to low in the correspondence table, and in practical applications, the PA operating voltage, the terminal transmission power, and the APC value correspondence table may be established by using other arrangement manners, for example, the transmission power is arranged from low to high, and the specific arrangement manner is not limited herein as long as the PA operating voltage, the terminal transmission power, and the APC value correspondence table are determined uniquely.

In the embodiment shown in FIG. 4, according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding a specific set of P and APC that meets the PA performance requirements may be:

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mTransmitting the maximum power P from the terminal_kFirstly, checking whether the terminal transmitting power P and APC setting meet the PA performance requirement in sequence, and finding out the P and APC first group meeting the PA performance requirement, namely finding out the current V_mThe following sets of P and APC that meet the PA performance requirements.

It should be noted that, in the above, several embodiments described in fig. 3 to fig. 4 describe various ways of establishing the correspondence table between the terminal transmission power and the operating voltage of the PA, in practical applications, the various ways of establishing the correspondence table between the terminal transmission power and the operating voltage of the PA may be used in combination, as long as the correspondence table between the terminal transmission power and the operating voltage of the PA can be obtained, and the specific establishment way is not limited here.

For convenience of understanding, the following embodiments describe the power calibration method described in the foregoing embodiments in a specific application scenario of the LTE terminal.

Referring to fig. 5, another embodiment of the power calibration method of the present invention includes:

501. LTE terminal determines transmission power P of first PRACH data packet₁；

In the random access process, the LTE terminal obtains the electromagnetic wave path of the Uu interface wireless signal according to the measurementLoss, and minimum received power expected by the network, using equation P₁＝(P_{send_pilot}-P_{rx_pilot})+P_{expect_rxlevel}Calculating the power P used for sending PRACH data packet each time₁So as to calculate P therefrom₁25dbm, wherein P_{send_pilot}、P_{expect_rxleve}When the network broadcasts the message, the LTE terminal can obtain the transmitting power of the broadcast pilot channel and the minimum receiving power of the random channel expected by the network, P_{rx_pilot}Broadcast pilot channel power, (P) acquired for LTE terminals_send__pilot-P_{rx_pilot}) The electromagnetic path loss of the interface wireless signal is not limited herein.

502. The LTE terminal is according to preset LTE _ APT_TableQuery P₁First operating voltage V of corresponding PA₁；

In this embodiment, LTE _ APT_TableA table of the corresponding relationship between the LTE terminal transmission power and the working voltage of the power amplifier PA, in which the LTE terminal transmission power and the working voltage of the power amplifier PA are in one-to-one correspondence, according to the corresponding relationship and the known P₁I.e. the first operating voltage V of the PA can be queried₁Here with LTE _ APT_TableP in the corresponding table₁The PA operating voltage is for example 2.5V for 25 dbm.

It should be noted that preset LTE _ APT is used_TablePreviously, LTE _ APT would be pre-established_TableTABLE LTE _ APT_TableThe table establishment method may be the LTE _ APT establishment method in any of the embodiments described in fig. 2 to 4_TableThe form of the correspondence table is not limited herein.

503. LTE terminal adopts P₁And a first operating voltage V₁Sending a first PRACH data block on a wireless channel allocated by a network;

in this embodiment, the LTE terminal drives the V through a radio frequency and a serial control interface (SPI)₁Writing the data into a DAC register of an analog conversion module of the radio frequency transceiver RFIC, setting the DAC to be active before the uplink data is transmitted to be effective,i.e. controlling the DC/DC output voltage of the voltage converting device to change the operating voltage supplied to the PA to V₁。

When the LTE terminal sends the data block, the network allocates the wireless resource to enable the terminal to adopt the transmitting power P₁Transmitting a first PRACH data packet on the allocated wireless resource, wherein the working voltage of the PA is V₁。

504. An LTE terminal receives a data block transmitting power adjustment request sent by a network;

the network may decode the data block from the LTE terminal to determine the quality of the data block, and the method of decoding the data block from the LTE terminal to determine the quality of the data block may also be another method, such as a method of determining whether correct channel decoding is possible by using signal-to-noise ratio (SNR) measurement, in addition to the method of determining the CRC of the data block, or may be used in combination with the above methods.

The network can judge whether the sending power of the LTE terminal is too high or too low according to the determined quality of the data block, can determine the TPC value according to the obtained sending power condition of the LTE terminal, namely if the sending power of the LTE terminal is too high, the TPC value can be determined to be a negative value, the TPC power is too low, and the TPC can be determined to be a positive value, if the sending power of the LTE terminal meets the requirement, the TPC value is 0, a method of presetting the corresponding relation between the sending power and the TPC value can be adopted, the TPC value can be inquired and obtained, for example, the TPC value can be preset to be 1, 2 or 3 according to different degrees of the sending power of. . . According to the degree of overhigh transmission power of the LTE terminal, TPC values of-1, -2 and-3 can be preset. . . If the terminal transmission power meets the requirement, the TPC value is 0, and here, as long as the LTE terminal can receive the data block transmission power adjustment request including the TPC value, the specific manner and process for the network to determine the TPC value are the prior art, and this is not limited here.

After determining the TPC value, the network sends a data block transmission power adjustment request to the LTE terminal, wherein the data block transmission power adjustment request comprises the TPC value, and the TPC value is taken as 1 as an example;

505. the LTE terminal determines the corresponding power adjustment quantity to be delta P according to the TPC value in the data block transmitting power adjustment request;

in this embodiment, a certain correspondence relationship exists between the TPC value and the power adjustment amount, and the corresponding power adjustment amount can be determined according to the correspondence relationship.

The LTE terminal determines the power adjustment amount according to the TPC value in the data block transmission power adjustment request, where the method that the power adjustment amount is the same as the TPC value is taken as an example, that is, when the TPC value is 1, the power adjustment amount Δ P is 1dbm, and in practical application, the LTE terminal may also determine the power adjustment amount by adopting other manners, for example, adding or subtracting a preset fixed value (e.g., 0.1) according to the TPC value, as long as the power adjustment amount is determined according to the TPC value, and the specific determination manner is not limited herein.

506. LTE terminal adjusts amount and P according to power₁Calculating the transmission power P required for transmitting the second PRACH data packet₂；

In this embodiment, the LTE terminal adjusts the amount and P according to the power₁Calculating the transmission power P required for transmitting the second PRACH data packet₂The method can be adopted in which the terminal adjusts the amount Δ P and P according to the power₁The sum of the values calculates the transmission power P required for transmitting the second PRACH data packet₂I.e. P₂＝P₁+ Δ P, from which P can be calculated₂＝25dbm+1dbm＝26dbm。

In practical applications, it can also be calculated in other ways, for example in P₂＝P₁Plus some minor variable, e.g. 0.1dbm, on the basis of + Δ P, so that P₂The calculation of (A) is more accurate, and in the embodiment, only according to P₁The value can be calculated as P₂The value may be, and the specific calculation method is not limited herein.

507. The LTE terminal is according to preset LTE _ APT_TableQuery P₂Second operating voltage V of corresponding PA₂；

In LTE _ APT_TableIn the table, the transmission power of the LTE terminal is in one-to-one correspondence with the working voltage of the power amplifier PA, and the corresponding relation and the known P are used for solving the problem that the transmission power of the LTE terminal is not consistent with the working voltage of the power amplifier PA₂I.e. the first operating voltage V of the PA can be queried₂Here with LTE_APT_TableP in the corresponding table₂The PA operating voltage is 2.6V for 26dbm for example.

508. LTE terminal adopts P₂And a second operating voltage V₂Transmitting a second PRACH data block on a wireless channel allocated by a network;

it should be noted that the LTE terminal writes V1 into the DAC register of the analog conversion module of the radio frequency transceiver RFIC through a serial control interface (SPI) by radio frequency driving. Before the upstream data is sent to work, the DAC is set to be effective, namely the DC/DC output voltage of the voltage conversion device is controlled to change the working voltage provided for the PA to be V₂。

When the LTE terminal sends the data block, the network allocates the wireless resource to enable the terminal to adopt the transmitting power P₂Transmitting a second PRACH data packet on the allocated wireless resource, wherein the working voltage of the PA is V₂。

The above embodiment is described by taking an LTE terminal as an example, and it is understood that in practical applications, besides the LTE terminal, the embodiment may also be other types of mobile terminals, such as TD-SCDMA terminals, and the specific application is not limited herein.

It should be noted that the above embodiment is described by taking the PRACH packet as an example, and it is understood that in practical applications, the PRACH packet may also be other types of packets, such as a PUCCH packet, an SRS packet, a DMRS packet, and the like, and the specific details are not limited herein.

Referring to fig. 6, an embodiment of a terminal according to the present invention is described below, where the terminal according to the present invention includes:

a terminal 600, comprising:

a first querying unit 601, configured to determine a transmission power P of a first data block according to a predetermined condition₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, inquiring P₁First operating voltage V of corresponding PA₁；

A first sending unit 602 for employing P₁And a first operating voltage V₁On-netTransmitting a first data block on a radio channel allocated by the network;

a calculation unit 603 for calculating according to P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂；

A second query unit 604, configured to query P according to the above correspondence₂Second operating voltage V of corresponding PA₂；

A second sending unit 605 for adopting P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network.

In this embodiment, when the terminal needs to transmit a data block, the terminal may determine the power P needed to be transmitted₁The determination can be made by the formula P₁＝(P_{send_pilot}-P_{rx_pilot})+P_{expect_rxlevel}Wherein P is_{send_pilot}、P_{expect_rxlevel}When the network broadcasts a message, the determining unit 601 may obtain the transmitting power of the broadcast pilot channel and the minimum receiving power of the random channel expected by the network, P_{rx_pilot}The broadcast pilot channel power obtained for the terminal is different for different communication systems due to different requirements, (P)_{send_pilot}-P_{rx_pilot}) For path loss, P, during radio communication_{send_pilot}、P_{expect_rxlevel}、P_{rx_pilot}The value of (A) is different, and the specific value is not limited herein.

It should be noted that, in the preset correspondence between the terminal transmission power and the operating voltage of the power amplifier PA, the terminal transmission power and the operating voltage of the power amplifier PA are in one-to-one correspondence, and the first query unit and the second query unit perform the query according to the correspondence and the known P₁、P₂I.e. the first operating voltage V of the PA can be queried₁And a second operating voltage V₂。

In the terminal according to the embodiment of the present invention, the first querying unit 601 sends the power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁Corresponding PA first operating voltage V₁To make the first sending unit 602 adopt the P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network; the calculation unit 604 is based on P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P of the second data block needing to be sent₂Second query unit query P₂Corresponding second operating voltage, so that the second sending unit 604 adopts the P₂And the second operating voltage V₂And sending the second data block on a wireless channel distributed by a network, wherein each time the data block is sent, the corresponding relation table of the terminal transmitting power P and the APC value is inquired according to the determined transmitting power, the working voltage for sending the data block is determined, and the data block is sent according to the working voltage. .

Referring to fig. 7, another embodiment of the terminal according to the embodiment of the present invention includes:

a terminal 700, comprising:

a first querying unit 701, configured to determine a transmission power P of a first data block according to a predetermined condition₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, inquiring P₁First operating voltage V of corresponding PA₁；

A first sending unit 702 for employing P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network;

a calculation unit 703 for calculating according to P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂；

A second query unit 704, configured to query P according to the above correspondence₂Of a corresponding PASecond operating voltage V₂；

A second sending unit 705 for adopting P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network.

The terminal of this embodiment may further include:

an obtaining unit 706 configured to operate at the terminal PA at the maximum nominal operating voltage V_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

a creating unit 707 for creating P according to the P acquired by the acquiring unit_kAnd APC_kAnd establishing a corresponding relation table of the terminal transmitting power and the working voltage of the PA according to the value corresponding relation table.

Referring to fig. 8, the establishing unit 707 may further include:

a first adjusting module 7071 for setting the PA operating voltage V of the terminal_m＝V_max+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_maxFor maximum working voltage, DeltaV, of terminal PA_mD, setting delta V (m-1) as a set basic voltage adjustment quantity, wherein the delta V is less than 0;

a first lookup module 7072 for looking up according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage is successively reduced to a minimum operating voltage V_minWhen the P and APC group corresponding to the minimum transmitting power of the terminal can not meet the PA performance requirement, the search is completed;

a first establishing module 7073 for establishing the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

The establishing unit 707 may further include:

a second adjusting module 7074 for setting the PA operating voltage V of the terminal_m＝V_min+△V_mSequentially adjusting the terminalsOperating voltage V of PA_mWherein V is_minFor terminal PA minimum operating voltage, Δ V_mD, forming a voltage value of the reference voltage, wherein the voltage value is equal to delta V (m-1), and delta V is a set basic voltage adjustment quantity and is more than 0;

a second lookup module 7075 for looking up according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage increases successively up to a maximum operating voltage V_maxWhen the P and APC group corresponding to the maximum transmitting power of the terminal can not meet the performance requirement, the search is completed;

a second establishing module 7076 for establishing a second PA based on the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value, wherein the found P and APC groups meet the PA performance requirements.

It is understood that, in practical applications, in some embodiments, the establishing unit 707 may include a first adjusting module 7071, a second searching module 7072, and a first establishing module 7073, or include a second adjusting module 7074, a second searching module 7075, and a second establishing module 7076, and in other embodiments, may also include the first adjusting module 7071, the first searching module 7072, the first establishing module 7073, the second adjusting module 7074, the second searching module 7075, and the second establishing module 7076, which is not limited herein.

It should be noted that, in the correspondence relationship between the terminal transmission power of the establishing unit and the operating voltage of the power amplifier PA, the terminal transmission power and the operating voltage of the power amplifier PA are in one-to-one correspondence, and the first querying unit 701 and the second querying unit 704 perform the first querying and the second querying according to the correspondence relationship and the known P₁、P₂I.e., the first operating voltage and the second operating voltage of the PA may be queried.

And the network transmits the allocated wireless resources and the terminal on the allocated wireless resources by adopting the known transmitting power, and at the moment, the working voltage of the PA is the working voltage corresponding to the transmitting power inquired and obtained according to the corresponding relation between the transmitting power of the terminal and the voltage of the power amplifier PA.

It is understood that the first querying unit 701 and the second querying unit 704 may be collectively configured as a querying unit, configured to query the operating voltage of the corresponding PA according to the terminal transmission power P, and similarly, the first sending unit 702 and the second sending unit 705 may also be configured as a sending unit, configured to select the corresponding voltage V of the PA queried by the querying unit as the operating voltage of the PA when the transmission power is P, and send the data block on the radio channel allocated by the network by using P and the corresponding operating voltage V, which is not limited herein.

This embodiment is based on the embodiment shown in fig. 6, and adds the obtaining unit 706 to operate at the maximum nominal operating voltage V at the terminal PA_maxAnd then, the corresponding relation table of the terminal transmitting power and the automatic power control APC value is acquired, and the establishing unit 707 establishes the corresponding relation table of the terminal transmitting power and the working voltage of the PA according to the corresponding relation table of the terminal transmitting power and the automatic power control APC value acquired by the acquiring unit 706, so that the device structure is more flexibly set.

For convenience of understanding, the following describes an internal operation flow of the terminal in this embodiment by taking a specific application scenario as an example:

the obtaining unit 706 operates at the maximum nominal operating voltage V at the terminal PA_maxAcquiring a corresponding relation table (as shown in the table 1) of the terminal transmitting power and the automatic power control APC value;

the establishing unit 707 establishes a correspondence table of the terminal transmission power and the operating voltage of the PA according to the correspondence table of the terminal transmission power and the automatic power control APC value acquired by the acquiring unit 706.

The first query unit 701 determines the transmission power P of the first data block according to the predetermined value₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁；

The first sending unit 702 employs P₁And a first operating voltage V₁Transmitting a first data block on a radio channel allocated by a network;

the computing unit 703 is based on P1And the request for adjusting the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂；

The second query unit 704 queries the P according to the above correspondence₂Second operating voltage V of corresponding PA₂；

The second transmission unit 705 adopts P₂And a second operating voltage V₂The second data block is transmitted on a radio channel allocated by the network.

The establishing unit 707 obtains the terminal transmitting power and the automatic power P according to the obtaining unit 706_kControlling APC_kThe value corresponding relation table is established, and the corresponding relation table of the terminal sending power and the working voltage of the PA is established, and has two implementation flows, and the specific structure of the table can comprise:

first adjusting module 7071 sets working voltage V of terminal PA_m＝V_max+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_maxFor maximum working voltage, DeltaV, of terminal PA_mD, setting delta V (m-1) as a set basic voltage adjustment quantity, wherein the delta V is less than 0;

first lookup module 7072 is based on P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage is successively reduced to a minimum operating voltage V_minWhen the P and APC group corresponding to the minimum transmitting power of the terminal can not meet the PA performance requirement, the search is completed;

the first establishing module 7073 operates according to the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

Or,

the second adjusting module 7074 sets the PA operating voltage V of the terminal_m＝V_min+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_minFor terminal PA minimum operating voltage, Δ V_mΔ V (m-1) is a set basic voltage adjustmentAmount,. DELTA.V > 0;

second lookup module 7075 according to P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage increases successively up to a maximum operating voltage V_maxWhen the P and APC group corresponding to the maximum transmitting power of the terminal can not meet the performance requirement, the search is completed;

the second establishing module 7076 determines the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

It is understood that in practical applications, a combination of the above-mentioned various configurations of the establishing unit 707 can be used for comprehensive comparison, and the configuration of the specific establishing unit is not limited herein.

In this embodiment, before using the preset correspondence table between the terminal transmission power and the operating voltage of the PA, the establishment unit 707 needs to establish the correspondence table between the terminal transmission power and the operating voltage of the PA in advance.

It should be noted that, in all terminal embodiments of the present invention, the establishing unit 707 is not required to repeatedly execute the process to establish the corresponding table of the terminal transmission power and the operating voltage of the PA each time, after the establishing unit 707 establishes the corresponding table of the terminal transmission power and the operating voltage of the PA, the corresponding table of the terminal transmission power and the operating voltage of the PA may be directly inquired and used subsequently, and the corresponding table of the terminal transmission power and the operating voltage of the PA may be periodically updated or supplemented, reestablished, and the like as needed.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the division of the units is only one logical division, and the actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A method of power calibration, comprising:

the terminal transmits power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁Said P is₁Based on wireless communication processDetermining the path loss and the minimum receiving power of a random channel expected by a network;

the terminal is according to the P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂The data block transmitting power adjustment request comprises a transmitting power control word (TPC) value, the TPC value is used for determining a power adjustment amount, and the TPC value is determined based on a data block cyclic redundancy check code or a signal-to-noise ratio measured value;

The terminal adopts the P₂And the second operating voltage V₂Transmitting the second data block on a network-allocated radio channel;

the terminal transmits power P according to the predetermined first data block₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁The method also comprises the following steps:

operating at terminal PA at maximum nominal operating voltage V_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

according to said P_kAnd APC_kAnd establishing a corresponding relation table of the terminal transmitting power and the working voltage of the PA according to the value corresponding relation table.

2. The method of claim 1, wherein the P is a function of the P_kAnd APC_kThe value correspondence table is used for establishing a correspondence table between the terminal transmission power and the working voltage of the PA, and specifically comprises the following steps:

setting the PA operating voltage V of the terminal_m＝V_max+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_maxTo end inMaximum working voltage, delta V, of terminal PA_mΔ V is a set basic voltage adjustment amount, Δ V < 0, Δ V_mThe value is the adjustment range of the working voltage of PA per time, delta V_mIs a non-zero value, and m is a non-zero value;

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage is successively reduced to a minimum operating voltage V_minWhen the P and APC group corresponding to the minimum transmitting power of the terminal can not meet the PA performance requirement, the search is completed;

according to the operating voltage V at the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

3. The method of claim 2, wherein said P is a function of said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mA set of P and APC's is found that meet the PA performance requirements, including,

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mTransmitting P with minimum power from the terminal_kAnd starting to sequentially check whether the transmission power P and APC group setting of the terminal meets the PA performance requirement, and finding out the P and APC groups which cannot meet the PA performance requirement, wherein the last checked P and APC group is the last group which can meet the PA performance requirement.

4. The method of claim 1, wherein the P is a function of the P_kAnd APC_kThe value correspondence table is used for establishing a correspondence table between the terminal transmission power and the working voltage of the PA, and specifically comprises the following steps:

setting the PA operating voltage V of the terminal_m＝V_min+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_minMinimum operating voltage for PA of terminal，△V_mΔ V is a set basic voltage adjustment amount, Δ V > 0, Δ V_mThe value is the adjustment range of the working voltage of PA per time, delta V_mIs a non-zero value, and m is a non-zero value;

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage increases successively up to a maximum operating voltage V_maxWhen the P and APC group corresponding to the maximum transmitting power of the terminal can not meet the PA performance requirement, the search is completed;

5. The method of claim 4, wherein the P is a function of the P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding a group of P and APC meeting the PA performance requirement specifically comprises:

according to said P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mTransmitting the maximum power P from the terminal_kAnd starting to sequentially check whether the terminal transmitting power P and the APC setting meet the PA performance requirement, and finding out a P and APC first-time group meeting the PA performance requirement.

6. Method according to any of claims 2 to 5, wherein said operating voltage V is dependent on the PA to which it is associated_mEstablishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value, wherein the found P and APC groups meeting the PA performance requirements specifically comprise:

according to the operating voltage V at the corresponding PA_mThe working voltage V of the PA corresponding to each found P and APC group meeting the PA performance requirement is judged_mWhether or not there are a plurality ofAnd if so, selecting the minimum one of the recorded voltage values, and establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value.

7. A terminal, comprising:

a first searching unit for searching the transmission power P of the first data block according to the predetermined₁And the preset corresponding relation between the terminal sending power and the working voltage of the power amplifier PA, and inquiring the P₁First operating voltage V of corresponding PA₁Said P is₁Determining the minimum receiving power of a random channel based on the path loss and the network expectation in the wireless communication process;

a calculation unit for calculating P₁And the adjustment request of the transmitting power of the data block sent by the network calculates the transmitting power P required by sending the second data block₂The data block transmitting power adjustment request comprises a transmitting power control word (TPC) value, the TPC value is used for determining a power adjustment amount, and the TPC value is determined based on a data block cyclic redundancy check code or a signal-to-noise ratio measured value;

A second transmission unit for employing the P₂And the second operating voltage V₂Transmitting the second data block on a network-allocated radio channel;

the terminal further comprises: an acquisition unit for operating at a maximum nominal operating voltage V at the terminal PA_maxThen, the transmitting power P of the terminal is obtained_kAnd automatic power control APC_kA value corresponding relation table;

a establishing unit for establishing P according to the P acquired by the acquiring unit_kAnd APC_kAnd establishing a corresponding relation table of the terminal transmitting power and the working voltage of the PA according to the value corresponding relation table.

8. The terminal according to claim 7, wherein the establishing unit comprises:

a first adjusting module for setting the working voltage V of the terminal PA_m＝V_max+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_maxFor maximum working voltage, DeltaV, of terminal PA_mΔ V is a set basic voltage adjustment amount, Δ V < 0, Δ V_mThe value is the adjustment range of the working voltage of PA per time, delta V_mIs a non-zero value, and m is a non-zero value;

a first search module for searching for P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage is successively reduced to a minimum operating voltage V_minWhen the P and APC group corresponding to the minimum transmitting power of the terminal can not meet the PA performance requirement, the search is completed;

a first establishing module for establishing the working voltage V according to the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.

9. The terminal according to claim 7, wherein the establishing unit comprises:

a second adjusting module for setting the working voltage V of the terminal PA_m＝V_min+△V_mSequentially adjusting the working voltage V of the terminal PA_mWherein V is_minFor terminal PA minimum operating voltage, Δ V_mΔ V is a set basic voltage adjustment amount, Δ V > 0, Δ V_mThe value is the adjustment range of the working voltage of PA per time, delta V_mIs a non-zero value, and m is a non-zero value;

a second lookup module for looking up according to the P_kAnd APC_kTable of value correspondences, at each operating voltage V of the terminal PA_mFinding P and APC groups meeting the PA performance requirement; when adjusting Δ V_mThe value of which is such that the PA operating voltage increases successively up to a maximum operating voltage V_maxWhen the P and APC group corresponding to the maximum transmitting power of the terminal can not meet the performance requirement, the search is completed;

a second establishing module for establishing a working voltage V according to the corresponding PA_mAnd establishing a corresponding relation table of the determined unique PA working voltage, the terminal transmitting power and the APC value according to the found P and APC groups meeting the PA performance requirements.