CN112422205B - Method and device for calibrating SRS radio frequency transmission channel, electronic equipment and storage medium - Google Patents
Method and device for calibrating SRS radio frequency transmission channel, electronic equipment and storage medium Download PDFInfo
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- CN112422205B CN112422205B CN202011321294.XA CN202011321294A CN112422205B CN 112422205 B CN112422205 B CN 112422205B CN 202011321294 A CN202011321294 A CN 202011321294A CN 112422205 B CN112422205 B CN 112422205B
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- H04B17/11—Monitoring; Testing of transmitters for calibration
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- 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
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- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a method and a device for calibrating an SRS radio frequency transmission channel, electronic equipment and a storage medium, which are used for a mobile terminal, wherein the mobile terminal comprises an SRS radio frequency transmission channel and a service data radio frequency transmission channel, the service data radio frequency transmission channel is consistent with one part of the SRS radio frequency transmission channel and is inconsistent with the other part of the SRS radio frequency transmission channel, and the method comprises the following steps: acquiring a corresponding transmission power difference value when the service data radio frequency transmission channel and the other part of SRS radio frequency transmission channels transmit by the same APC code; acquiring an APC calibration result of a service data radio frequency transmission channel; acquiring an APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels; and acquiring an APC calibration result of the other part of SRS radio frequency transmission channels according to the APC calibration result, the transmission power difference value and the APC code change value corresponding to the unit transmission power of the service data radio frequency transmission channel. The invention can solve the problem of power accuracy of the SRS radio frequency emission channel on the basis of not increasing the calibration cost of the production line.
Description
Technical Field
The present invention relates to the field of radio frequency technologies, and in particular, to a method and an apparatus for calibrating an SRS radio frequency transmission channel, an electronic device, and a storage medium.
Background
Currently, in 5G communication systems and 4G communication systems, directional transmission can be performed to the terminal. When the base station wants to transmit directionally, it first needs to detect the position of the terminal, the quality of the transmission path, etc., so that the resources of the base station are more accurately allocated to each terminal. The terminal transmits an SRS (Sounding Reference Signal) which is one of the ways for the base station to detect the terminal position and channel quality. In the SRS mode, the more the number of radio frequency transmission channels capable of participating in sending SRS signals is, the more accurate the channel estimation is. On the basis, the SRS radio frequency transmission channels are more than the service data radio frequency transmission channels. The difference between the service data radio frequency transmission channel and a part of the SRS radio frequency transmission channels is that the difference between the inconsistent other part of the SRS radio frequency transmission channels and the data service radio frequency transmission channels is at the rear end of a Power Amplifier (PA), and the rear ends of the PAs of different channels have a relatively fixed transmission Power difference delta _ Loss.
In a communication system, in order to accurately transmit radio frequency Power, APC (automatic Power Control) calibration needs to be performed on a radio frequency transmission channel of a mobile terminal, that is, APC codes corresponding to all required transmission Power are acquired, and the calibration is performed on a production line. However, if the production line only performs APC calibration on the service data radio frequency transmission channel, the power accuracy of the SRS radio frequency transmission channel that is not consistent with the production line cannot meet the requirement; if the production line performs APC calibration on all SRS radio frequency transmission channels, the complexity of production line calibration is increased, and the calibration time is increased.
For example, in a 5G mobile terminal, a traffic data radio frequency transmission channel is denoted as data _ Tx _ RF _ path, an SRS radio frequency transmission channel consistent with the traffic data radio frequency transmission channel is denoted as SRS _ data _ Tx _ RF _ path, and an SRS radio frequency transmission channel inconsistent with the traffic data radio frequency transmission channel is denoted as SRS _ Tx _ RF _ path. The APC code corresponding to the data _ Tx _ RF _ path at the target transmission Power _ target is denoted as APC _ index0, the APC code corresponding to the SRS _ data _ Tx _ RF _ path at the target Power _ target is close to APC _ index0 since the SRS _ data _ Tx _ RF _ path is identical to the data _ Tx _ RF _ path, and the APC code corresponding to the SRS _ Tx _ RF _ path at the target Power _ target is denoted as APC _ index1. The SRS _ Tx _ RF _ path determines that there is a difference between APC _ index1 and APC _ index0 due to the mismatch between PA back-end paths of the PA back-end and data _ Tx _ RF _ path.
On the basis, if the production line only performs APC calibration on the data _ Tx _ RF _ path, and the SRS _ Tx _ RF _ path uses the APC calibration result of the data _ Tx _ RF _ path when transmitting the SRS signal, part of the SRS signal radio frequency transmission power cannot meet the precision requirement; however, if all SRS _ Tx _ RF _ path and data _ Tx _ RF _ path are APC-calibrated, the production line calibration time cost is multiplied.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an object of the present invention is to provide a method and an apparatus for calibrating an SRS rf transmission channel, an electronic device, and a storage medium, so as to solve the problem of power accuracy of the SRS rf transmission channel without increasing the calibration cost of a production line.
In order to achieve the above object, the present invention provides a calibration method for an SRS radio frequency transmission channel, which is used for performing APC calibration on the SRS radio frequency transmission channel of a mobile terminal, wherein the mobile terminal includes a plurality of SRS radio frequency transmission channels and a service data radio frequency transmission channel, and the service data radio frequency transmission channel is consistent with one SRS radio frequency transmission channel and is inconsistent with another SRS radio frequency transmission channel, and the calibration method includes:
acquiring a corresponding transmission power difference value when the service data radio frequency transmission channel and the other part of SRS radio frequency transmission channels transmit by the same APC code;
acquiring an APC calibration result of the service data radio frequency transmission channel;
acquiring APC code variation values corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels;
and taking the APC calibration result of the service data radio frequency transmission channel as the APC calibration result of one part of SRS radio frequency transmission channels, and acquiring the APC calibration result of the other part of SRS radio frequency transmission channels according to the APC calibration result of the service data radio frequency transmission channels, the transmission power difference and the APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels.
In a preferred embodiment of the present invention, the obtaining a transmission power difference corresponding to the service data radio frequency transmission channel and the other SRS radio frequency transmission channel when they transmit with the same APC code includes:
acquiring a target APC code corresponding to the service data radio frequency transmission channel when transmitting target transmission power;
acquiring corresponding transmission power of the other part of SRS radio frequency transmission channels when the target APC code is transmitted, and recording the transmission power as comparison transmission power;
and calculating the difference between the target transmitting power and the comparison transmitting power to obtain the transmitting power difference.
In a preferred embodiment of the present invention, the APC calibration results include: and APC codes corresponding to the predetermined transmission powers, respectively.
In a preferred embodiment of the present invention, the obtaining the APC calibration result of the other SRS rf transmission channel according to the APC calibration result of the service data rf transmission channel, the transmission power difference, and the APC code variation value corresponding to each unit of transmission power of the other SRS rf transmission channel includes:
calculating an APC calibration result Srs _ APC _ table of the other part of SRS radio frequency transmission channels according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)
the data _ APC _ table represents an APC calibration result of the service data radio frequency transmission channel, delta _ Loss represents the transmission power difference, and power _ step represents an APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels.
In order to achieve the above object, the present invention further provides a calibration apparatus for an SRS radio frequency transmission channel, configured to perform APC calibration on the SRS radio frequency transmission channel of a mobile terminal, where the mobile terminal includes a plurality of SRS radio frequency transmission channels and a service data radio frequency transmission channel, and the service data radio frequency transmission channel is consistent with one SRS radio frequency transmission channel and is inconsistent with another SRS radio frequency transmission channel, and the calibration apparatus includes:
a power difference value obtaining module, configured to obtain a corresponding transmission power difference value when the service data radio frequency transmission channel and the other SRS radio frequency transmission channel transmit with the same APC code;
a reference channel calibration result acquisition module, configured to acquire an APC calibration result of the service data radio frequency transmission channel;
the APC code change value acquisition module is used for acquiring the APC code change value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels;
and the calibration module is used for taking the APC calibration result of the service data radio frequency transmission channel as the APC calibration result of one part of the SRS radio frequency transmission channels, and acquiring the APC calibration result of the other part of the SRS radio frequency transmission channels according to the APC calibration result of the service data radio frequency transmission channel, the transmission power difference and the APC code variation value corresponding to each unit of transmission power of the other part of the SRS radio frequency transmission channels.
In a preferred embodiment of the present invention, the power difference obtaining module is specifically configured to:
acquiring a target APC code corresponding to the service data radio frequency transmission channel when transmitting target transmission power;
acquiring corresponding transmitting power of the other part of SRS radio frequency transmitting channels when the other part of SRS radio frequency transmitting channels are transmitted by the target APC code, and recording the transmitting power as comparison transmitting power;
and calculating the difference between the target transmitting power and the comparison transmitting power to obtain the transmitting power difference.
In a preferred embodiment of the present invention, the APC calibration results include: APC codes corresponding to predetermined transmission powers, respectively.
In a preferred embodiment of the present invention, the calibration module calculates an APC calibration result SRS _ APC _ table of the another portion of SRS radio frequency transmission channels according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)
and the data _ APC _ table represents an APC calibration result of the service data radio frequency transmission channel, the delta _ Loss represents the transmission power difference, and the power _ step represents an APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels.
In order to achieve the above object, the present invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the aforementioned method when executing the computer program.
To achieve the above object, the present invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, realizes the steps of the aforementioned method.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the method, only the production line APC calibration is needed to be carried out on the service data radio frequency transmitting channel, the SRS radio frequency transmitting channel consistent with the service data radio frequency transmitting channel adopts the calibration result of the service data radio frequency transmitting channel, and for the SRS radio frequency transmitting channel inconsistent with the service data radio frequency transmitting channel, because the transmitting power difference value of the SRS radio frequency transmitting channel and the service data radio frequency transmitting channel under the same APC code is fixed, the APC calibration result of the other part of the SRS radio frequency transmitting channel consistent with the service data radio frequency transmitting channel can be obtained according to the APC calibration result of the service data radio frequency transmitting channel, the transmitting power difference value and the APC code change value corresponding to each unit transmitting power of the inconsistent SRS radio frequency transmitting channel. Therefore, the invention can solve the problem of power accuracy of the SRS radio frequency transmitting channel on the basis of not increasing the calibration cost of the APC of the production line.
Drawings
Fig. 1 is a flowchart of a calibration method for an SRS radio frequency transmission channel in embodiment 1 of the present invention;
fig. 2 is a block diagram of a calibration apparatus for an SRS radio frequency transmission channel in embodiment 2 of the present invention;
fig. 3 is a hardware architecture diagram of an electronic device in embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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 terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Example 1
The embodiment provides a calibration method for an SRS radio frequency transmission channel, which is used for performing APC calibration on the SRS radio frequency transmission channel of a mobile terminal. The mobile terminal comprises a plurality of SRS radio-frequency transmitting channels and service data radio-frequency transmitting channels, the number of the SRS radio-frequency transmitting channels is more than that of the service data radio-frequency transmitting channels, and the service data radio-frequency transmitting channels are consistent with one part of the SRS radio-frequency transmitting channels and are inconsistent with the other part of the SRS radio-frequency transmitting channels (the difference is found at the rear end of the PA).
In this embodiment, the service data RF transmission channel is denoted as data _ Tx _ RF _ path, a portion of the SRS RF transmission channel that is consistent with the service data RF transmission channel is denoted as SRS _ data _ Tx _ RF _ path, and another portion of the SRS RF transmission channel that is inconsistent with the service data RF transmission channel is denoted as SRS _ Tx _ RF _ path.
The calibration method of the present embodiment is shown in fig. 1, and includes the following steps:
s1, acquiring a corresponding transmission power difference value when the service data radio frequency transmission channel data _ Tx _ RF _ path and the inconsistent SRS radio frequency transmission channel SRS _ Tx _ RF _ path are transmitted by the same APC code, specifically comprising the following steps:
first, a target APC code APC _ index0 corresponding to the target transmission Power _ target transmitted by the service data radio frequency transmission channel data _ Tx _ RF _ path is obtained. Specifically, the current APC code is recorded as the target APC code APC _ index0 by repeatedly adjusting the APC codes until the traffic data radio frequency transmission channel data _ Tx _ RF _ path uses the adjusted APC code transmission Power as the target transmission Power _ target.
Then, the corresponding transmission Power when the inconsistent SRS radio frequency transmission channel SRS _ Tx _ RF _ path is transmitted by the target APC code APC _ index0 is obtained and recorded as the comparative transmission Power Power _ SRS. Specifically, the SRS radio frequency transmission channel SRS _ Tx _ RF _ path is transmitted with the target APC code APC _ index0, and records the current transmission Power _ SR.
Finally, the difference between the target transmission Power _ target and the comparison transmission Power _ SRS is calculated to obtain the transmission Power difference delta _ Loss corresponding to the data _ Tx _ RF _ path and the SRS _ Tx _ RF _ path transmitted by the same APC code (i.e., the target APC code), i.e., delta _ Loss = Power _ SRS-Power _ target.
And S2, acquiring an APC calibration result data _ APC _ table of the service data radio frequency transmission channel data _ Tx _ RF _ path from a production line.
In general, the process of in-line calibration of APCs is as follows: firstly, presetting a calibrated transmitting power required by APC calibration, wherein the APC calibration needs to calibrate a plurality of transmitting powers, and therefore a plurality of preset transmitting powers exist; and then, acquiring APC codes respectively corresponding to the service data radio frequency transmission channel data _ Tx _ RF _ path at each predetermined transmission power, and taking the APC codes as an APC calibration result data _ APC _ table of the service data radio frequency transmission channel data _ Tx _ RF _ path, that is, the APC calibration result data _ APC _ table includes APC codes respectively corresponding to each predetermined transmission power, and generally stores the APC codes in a list form.
And S3, acquiring an APC code change value corresponding to each unit of transmission power of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path, and recording the APC code change value as power _ step. The APC code variation value corresponding to each unit of transmission power of the SRS radio frequency transmission channel is the inherent characteristic of the SRS radio frequency transmission channel, and can be obtained through measurement.
S4, since the data _ Tx _ RF _ path and the SRS _ data _ Tx _ RF _ path are identical and the APC calibration results of the data _ Tx _ RF _ path and the SRS _ data _ Tx _ RF _ path are very close to each other, the present embodiment uses the APC calibration result data _ APC _ table of the traffic data radio frequency transmission channel data _ Tx _ RF _ path as the APC calibration result of the SRS _ data _ Tx _ RF _ path. Meanwhile, since the corresponding transmit power difference between the data _ Tx _ RF _ path and the SRS _ Tx _ RF _ path under the same APC code is fixed, the present embodiment obtains the APC calibration result SRS _ APC _ table of the SRS radio frequency transmitting channel SRS _ Tx _ RF _ path inconsistent with the service data radio frequency transmitting channel according to the APC calibration result data _ APC _ table of the service data radio frequency transmitting channel data _ Tx _ RF _ path, the transmit power difference delta _ Loss, and the APC code variation value power _ step corresponding to each unit transmit power of the SRS radio frequency transmitting channel data _ Tx _ RF _ path.
Specifically, an APC calibration result SRS _ APC _ table of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path is calculated according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)。
it can be seen that, in this embodiment, only the production line APC calibration needs to be performed on the service data radio frequency transmission channel, and the SRS radio frequency transmission channel that is consistent with the service data radio frequency transmission channel adopts the calibration result of the service data radio frequency transmission channel, and for the SRS radio frequency transmission channel that is inconsistent with the service data radio frequency transmission channel, since the transmission power difference between the two SRS radio frequency transmission channels under the same APC code is fixed, the APC calibration result of the other part of radio frequency SRS radio frequency transmission channels that is consistent with the service data radio frequency transmission channel can be obtained according to the APC calibration result of the service data radio frequency transmission channel, the transmission power difference, and the APC code change value corresponding to each unit transmission power of the inconsistent SRS radio frequency transmission channel. Therefore, the invention can solve the problem of power accuracy of the SRS radio frequency transmitting channel on the basis of not increasing the calibration cost of the APC of the production line.
Example 2
The embodiment provides a calibration apparatus for an SRS radio frequency transmission channel, which is used for performing APC calibration on the SRS radio frequency transmission channel of a mobile terminal. The mobile terminal comprises a plurality of SRS radio-frequency transmitting channels and service data radio-frequency transmitting channels, the number of the SRS radio-frequency transmitting channels is more than that of the service data radio-frequency transmitting channels, and the service data radio-frequency transmitting channels are consistent with one part of the SRS radio-frequency transmitting channels and are inconsistent with the other part of the SRS radio-frequency transmitting channels (the difference is found at the rear end of the PA).
In this embodiment, the service data RF transmission channel is denoted as data _ Tx _ RF _ path, a portion of the SRS RF transmission channel that is consistent with the service data RF transmission channel is denoted as SRS _ data _ Tx _ RF _ path, and another portion of the SRS RF transmission channel that is inconsistent with the service data RF transmission channel is denoted as SRS _ Tx _ RF _ path.
As shown in fig. 2, the calibration apparatus 1 for SRS radio frequency transmission channel of the present embodiment includes: the device comprises a power difference value acquisition module, a reference channel calibration result acquisition module, an APC code change value acquisition module and a calibration module. Each module is described in detail below:
the power difference obtaining module 11 is configured to obtain a corresponding transmit power difference when the service data radio frequency transmission channel data _ Tx _ RF _ path and the inconsistent SRS radio frequency transmission channel SRS _ Tx _ RF _ path are transmitted with the same APC code, and includes the following specific processes:
first, a target APC code APC _ index0 corresponding to the target transmission Power _ target transmitted by the service data radio frequency transmission channel data _ Tx _ RF _ path is obtained. Specifically, the current APC code is recorded as the target APC code APC _ index0 by repeatedly adjusting the APC codes until the traffic data radio frequency transmission channel data _ Tx _ RF _ path uses the adjusted APC code transmission Power as the target transmission Power _ target.
Then, the corresponding transmission Power when the inconsistent SRS radio frequency transmission channel SRS _ Tx _ RF _ path is transmitted by the target APC code APC _ index0 is obtained and recorded as the comparison transmission Power Power _ SRS. Specifically, the SRS radio frequency transmission channel SRS _ Tx _ RF _ path is transmitted with the target APC code APC _ index0, and records the current transmission Power _ SR.
Finally, the difference between the target transmission Power _ target and the comparison transmission Power _ SRS is calculated to obtain the transmission Power difference delta _ Loss corresponding to the data _ Tx _ RF _ path and the SRS _ Tx _ RF _ path transmitted by the same APC code (i.e., the target APC code), i.e., delta _ Loss = Power _ SRS-Power _ target.
The reference channel calibration result obtaining module 12 is configured to obtain an APC calibration result data _ APC _ table of the service data radio frequency transmission channel data _ Tx _ RF _ path from the production line.
In general, the process of in-line calibration of APCs is as follows: firstly, presetting calibrated transmitting power required by APC calibration, wherein the APC calibration needs to calibrate a plurality of transmitting powers, and therefore a plurality of preset transmitting powers exist; and then, acquiring APC codes respectively corresponding to the service data radio frequency transmission channel data _ Tx _ RF _ path at each predetermined transmission power, and taking the APC codes as an APC calibration result data _ APC _ table of the service data radio frequency transmission channel data _ Tx _ RF _ path, that is, the APC calibration result data _ APC _ table includes APC codes respectively corresponding to each predetermined transmission power, and generally stores the APC codes in a list form.
The APC code variation value obtaining module 13 is configured to obtain an APC code variation value corresponding to each unit transmission power of the other portion of SRS radio frequency transmission channels, and is denoted as power _ step. The APC code variation value per unit transmit power of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path is denoted as power _ step. The APC code variation value corresponding to each unit of transmission power of the SRS radio frequency transmission channel is the inherent characteristic of the SRS radio frequency transmission channel, and can be obtained through measurement.
The calibration module 14 is configured to use the APC calibration result data _ APC _ table of the traffic data RF transmission channel data _ Tx _ RF _ path as the APC calibration result of SRS _ data _ Tx _ RF _ path because the data _ Tx _ RF _ path and the SRS _ data _ Tx _ RF _ path are identical and the APC calibration results of the two are very close. Meanwhile, since the corresponding transmission power difference between the data _ Tx _ RF _ path and the SRS _ Tx _ RF _ path under the same APC code is fixed, the present embodiment obtains the APC calibration result SRS _ APC _ table of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path inconsistent with the service data radio frequency transmission channel according to the APC calibration result data _ APC _ table of the service data radio frequency transmission channel data _ Tx _ RF _ path, the transmission power difference delta _ Loss, and the APC code variation value power _ step corresponding to each unit of transmission power of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path.
Specifically, an APC calibration result SRS _ APC _ table of the SRS radio frequency transmission channel SRS _ Tx _ RF _ path is calculated according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)。
it can be seen that, in this embodiment, only the production line APC calibration needs to be performed on the service data radio frequency transmission channel, and the SRS radio frequency transmission channel consistent with the service data radio frequency transmission channel adopts the calibration result of the service data radio frequency transmission channel, and for the SRS radio frequency transmission channel inconsistent with the service data radio frequency transmission channel, since the transmission power difference between the two SRS radio frequency transmission channels under the same APC code is fixed, the APC calibration result of the other part of SRS radio frequency transmission channels consistent with the service data radio frequency transmission channel can be obtained according to the APC calibration result of the service data radio frequency transmission channel, the transmission power difference, and the APC code variation value corresponding to each unit of transmission power of the inconsistent SRS radio frequency transmission channel. Therefore, the invention can solve the problem of power accuracy of the SRS radio frequency transmitting channel on the basis of not increasing the calibration cost of the APC of the production line.
Example 3
The present embodiment provides an electronic device, which may be represented in the form of a computing device (for example, may be a server device), and includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor, when executing the computer program, may implement the calibration method for the SRS radio frequency transmission channel provided in embodiment 1.
Fig. 3 shows a schematic diagram of a hardware structure of the present embodiment, and as shown in fig. 3, the electronic device 9 specifically includes:
at least one processor 91, at least one memory 92, and a bus 93 for connecting the various system components (including the processor 91 and the memory 92), wherein:
the bus 93 includes a data bus, an address bus, and a control bus.
The processor 91 executes a computer program stored in the memory 92, so as to execute various functional applications and data processing, such as the calibration method of the SRS radio frequency transmission channel provided in embodiment 1 of the present invention.
The electronic device 9 may further communicate with one or more external devices 94 (e.g., a keyboard, a pointing device, etc.). Such communication may be through an input/output (I/O) interface 95. Also, the electronic device 9 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet) via the network adapter 96. The network adapter 96 communicates with the other modules of the electronic device 9 via the bus 93. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 9, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems, to name a few.
It should be noted that although in the above detailed description several units/modules or sub-units/modules of the electronic device are mentioned, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more of the units/modules described above may be embodied in one unit/module, according to embodiments of the application. Conversely, the features and functions of one unit/module described above may be further divided into embodiments by a plurality of units/modules.
Example 4
The present embodiment provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the calibration method of the SRS radio frequency transmission channel of embodiment 1.
More specific examples, among others, that the readable storage medium may employ may include, but are not limited to: a portable disk, a hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible implementation form, the present invention can also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps of implementing the calibration method of SRS radio frequency transmission channels of embodiment 1, when said program product is run on said terminal device.
Where program code for carrying out the invention is written in any combination of one or more programming languages, the program code may be executed entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on a remote device or entirely on the remote device.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. A calibration method for SRS radio frequency transmission channels is used for APC calibration of the SRS radio frequency transmission channels of a mobile terminal, wherein the mobile terminal comprises a plurality of SRS radio frequency transmission channels and a service data radio frequency transmission channel, the service data radio frequency transmission channel is consistent with one part of the SRS radio frequency transmission channels and is inconsistent with the other part of the SRS radio frequency transmission channels, and the calibration method comprises the following steps:
acquiring a corresponding transmission power difference value when the service data radio frequency transmission channel and the other part of SRS radio frequency transmission channels transmit by the same APC code;
acquiring an APC calibration result of the service data radio frequency transmission channel;
acquiring APC code variation values corresponding to each unit transmission power of the other part of SRS radio frequency transmission channels;
and taking the APC calibration result of the service data radio frequency transmission channel as the APC calibration result of one part of the SRS radio frequency transmission channels, and acquiring the APC calibration result of the other part of the SRS radio frequency transmission channels according to the APC calibration result of the service data radio frequency transmission channel, the transmission power difference and the APC code variation value corresponding to each unit of transmission power of the other part of the SRS radio frequency transmission channels.
2. The method for calibrating the SRS radio frequency transmission channel according to claim 1, wherein the obtaining the corresponding transmission power difference between the traffic data radio frequency transmission channel and the other portion of the SRS radio frequency transmission channel when the traffic data radio frequency transmission channel and the other portion of the SRS radio frequency transmission channel are transmitted with the same APC code comprises:
acquiring a target APC code corresponding to the service data radio frequency transmission channel when transmitting target transmission power;
acquiring corresponding transmission power of the other part of SRS radio frequency transmission channels when the target APC code is transmitted, and recording the transmission power as comparison transmission power;
and calculating the difference between the target transmitting power and the comparison transmitting power to obtain the transmitting power difference.
3. The method of claim 1, wherein the APC calibration results comprise: APC codes corresponding to predetermined transmission powers, respectively.
4. The method of claim 1, wherein the obtaining the APC calibration result for the other portion of SRS rf transmission channels according to the APC calibration result for the traffic data rf transmission channel, the transmission power difference, and the APC code variation value corresponding to each unit of transmission power for the other portion of SRS rf transmission channels comprises:
calculating an APC calibration result Srs _ APC _ table of the other part of SRS radio frequency transmission channels according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)
the data _ APC _ table represents an APC calibration result of the service data radio frequency transmission channel, delta _ Loss represents the transmission power difference, and power _ step represents an APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels.
5. A calibration device for SRS radio frequency transmission channels is used for APC calibration of the SRS radio frequency transmission channels of a mobile terminal, wherein the mobile terminal comprises a plurality of SRS radio frequency transmission channels and a service data radio frequency transmission channel, the service data radio frequency transmission channel is consistent with one part of the SRS radio frequency transmission channels and is inconsistent with the other part of the SRS radio frequency transmission channels, and the calibration device comprises:
a power difference value obtaining module, configured to obtain a corresponding transmission power difference value when the service data radio frequency transmission channel and the other SRS radio frequency transmission channel transmit with the same APC code;
a reference channel calibration result acquisition module, configured to acquire an APC calibration result of the service data radio frequency transmission channel;
the APC code change value acquisition module is used for acquiring the APC code change value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels;
and the calibration module is used for taking the APC calibration result of the service data radio frequency transmission channel as the APC calibration result of one part of the SRS radio frequency transmission channels, and acquiring the APC calibration result of the other part of the SRS radio frequency transmission channels according to the APC calibration result of the service data radio frequency transmission channel, the transmission power difference and the APC code variation value corresponding to each unit of transmission power of the other part of the SRS radio frequency transmission channels.
6. The apparatus for calibrating an SRS radio frequency transmission channel according to claim 5, wherein the power difference obtaining module is specifically configured to:
acquiring a target APC code corresponding to the service data radio frequency transmission channel when transmitting target transmission power;
acquiring corresponding transmission power of the other part of SRS radio frequency transmission channels when the target APC code is transmitted, and recording the transmission power as comparison transmission power;
and calculating the difference between the target transmitting power and the comparison transmitting power to obtain the transmitting power difference.
7. The apparatus of claim 5, wherein the APC calibration result comprises: and APC codes corresponding to the predetermined transmission powers, respectively.
8. The apparatus according to claim 5, wherein the calibration module calculates an APC calibration result Srs _ APC _ table of the other part of SRS RF transmission channels according to the following formula (1):
Srs_APC_table＝data_APC_table+delta_Loss*power_step (1)
the data _ APC _ table represents an APC calibration result of the service data radio frequency transmission channel, delta _ Loss represents the transmission power difference, and power _ step represents an APC code variation value corresponding to each unit of transmission power of the other part of SRS radio frequency transmission channels.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 4 are implemented when the computer program is executed by the processor.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 4.
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| PCT/CN2021/131290 WO2022105808A1 (en) | 2020-11-23 | 2021-11-17 | Method and apparatus for calibrating srs radio frequency emission channel, and electronic device and storage medium |
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| US8688163B2 (en) * | 2009-12-30 | 2014-04-01 | Qualcomm Incorporated | Interaction between accumulative power control and minimum/maximum transmit power in LTE systems |
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