CN110858995A - Method and device for controlling data transmission power, storage medium and user equipment - Google Patents
Method and device for controlling data transmission power, storage medium and user equipment Download PDFInfo
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- H—ELECTRICITY
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- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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- H04W74/08—Non-scheduled access, e.g. ALOHA
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Abstract
The present disclosure relates to a method, an apparatus, a storage medium, and a user equipment for controlling data transmission power, so as to solve the problem in the related art that the quality of a signal transmitted by the user equipment is deteriorated due to the fact that data is transmitted using the same digital power, and improve the quality of the transmission power of the user equipment. The method for controlling data transmission power is applied to user equipment and comprises the following steps: receiving indication information sent by a base station, wherein the indication information comprises information used for indicating the number of subcarriers used by the user equipment for sending data; determining the actual digital power corresponding to the number of the subcarriers according to the number of the subcarriers and the corresponding relation between the number of the subcarriers calibrated in advance and the digital power used for sending data, wherein in the corresponding relation, the magnitude of the digital power is inversely related to the number of the subcarriers; and determining the transmitting power used for transmitting data by the user equipment according to the actual digital power.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling data transmission power, a storage medium, and a user equipment.
Background
In a communication system, an EVM (Error Vector Magnitude) is an important standard for measuring the quality of a signal transmitted by user equipment, and a smaller EVM indicates a better quality of the transmitted signal. However, there are many factors affecting the EVM, and the digital power used by the user equipment to transmit data is a key factor affecting the EVM.
In the related art, data is generally transmitted with the same digital power, and if the digital power is set to be lower, a larger power gain value needs to be added to make the transmission power of the user equipment meet the expected value. However, the EVM becomes larger while the power gain value is increased, and thus, the quality of the transmission signal is deteriorated.
Disclosure of Invention
The present disclosure is directed to a method and an apparatus for controlling data transmission power, and a user equipment, to solve the problem in the related art that the quality of a transmission signal of the user equipment is deteriorated due to the fact that data is transmitted using the same digital power.
In a first aspect, the present disclosure provides a method for controlling data transmission power, which is applied to a user equipment, and includes:
receiving indication information sent by a base station, wherein the indication information comprises information used for indicating the number of subcarriers used by the user equipment for sending data;
determining the actual digital power corresponding to the number of the subcarriers according to the number of the subcarriers and the corresponding relation between the number of the subcarriers calibrated in advance and the digital power used for sending data, wherein in the corresponding relation, the magnitude of the digital power is inversely related to the number of the subcarriers;
and determining the transmitting power used for transmitting data by the user equipment according to the actual digital power.
Optionally, the determining, according to the actual digital power, a transmission power used by the user equipment for transmitting data includes:
subtracting the actual digital power from the pre-calibrated digital power to obtain a power difference value;
adding the power difference value to a pre-calibrated power gain value to obtain an actual power gain value;
and adding the actual digital power to the actual power gain value to obtain the transmitting power used by the user equipment for transmitting data.
Optionally, the determining the digital power corresponding to the number of subcarriers according to the number of subcarriers and a pre-calibrated correspondence between the number of subcarriers and the digital power used for transmitting data includes:
and searching the digital power corresponding to the number of the subcarriers in the corresponding relation table according to the number of the subcarriers.
Optionally, the method further comprises:
respectively using different numbers of subcarriers to transmit data, wherein the digital power used for transmitting the data is a plurality of preset different digital powers aiming at each number of subcarriers;
for each number of subcarriers, determining, among the plurality of different digital powers, a digital power used by the user equipment to transmit data when an error vector magnitude of the user equipment is smaller than a preset threshold;
and establishing a corresponding relation between the digital power and the number of the subcarriers.
Optionally, the indication information includes downlink control information and/or random access information.
In a second aspect, the present disclosure further provides a device for controlling data transmission power, which is applied to a user equipment, and includes:
a receiving module, configured to receive indication information sent by a base station, where the indication information includes information used to indicate the number of subcarriers used by the ue to send data;
a first determining module, configured to determine an actual digital power corresponding to the number of subcarriers according to the number of subcarriers and a correspondence between the number of subcarriers calibrated in advance and a digital power used for sending data, where in the correspondence, a magnitude of the digital power is inversely related to a number of the number of subcarriers;
and the second determining module is used for determining the transmitting power used by the user equipment for transmitting data according to the actual digital power.
Optionally, the second determining module is configured to:
subtracting the actual digital power from the pre-calibrated digital power to obtain a power difference value;
adding the power difference value to a pre-calibrated power gain value to obtain an actual power gain value;
and adding the actual digital power to the actual power gain value to obtain the transmitting power used by the user equipment for transmitting data.
Optionally, the first determining module is configured to: and when the corresponding relation comprises a corresponding relation table between the number of the subcarriers and the digital power used for sending data, searching the digital power corresponding to the number of the subcarriers in the corresponding relation table according to the number of the subcarriers.
Optionally, the apparatus further comprises:
the transmitting module is used for respectively transmitting data by using different numbers of subcarriers, wherein the digital power used for transmitting the data is a plurality of preset different digital powers aiming at each number of subcarriers;
a third determining module, configured to determine, for each number of subcarriers, a digital power used by the ue to transmit data when an error vector magnitude of the ue is smaller than a preset threshold among the multiple different digital powers;
and the establishing module is used for establishing the corresponding relation between the digital power and the number of the subcarriers.
Optionally, the receiving module is configured to receive downlink control information and/or random access information sent by the base station.
In a third aspect, the present disclosure also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of any of the methods of the first aspect.
In a fourth aspect, the present disclosure further provides a user equipment, where the user equipment includes the apparatus for controlling data transmission power according to any one of the second aspects.
According to the technical scheme, the method comprises the steps of firstly receiving indication information sent by a base station, wherein the indication information comprises information used for indicating the number of subcarriers used by user equipment for sending data, then determining actual digital power corresponding to the number of the subcarriers according to the number of the subcarriers and the corresponding relation between the number of the subcarriers calibrated in advance and the digital power used for sending the data, and finally determining the transmitting power used by the user equipment for sending the data according to the actual digital power. That is to say, according to the technical scheme of the present disclosure, the digital power used for sending data can be determined according to the number of subcarriers, instead of sending data with the same data power, so that the problem that the quality of the signal sent by the user equipment is poor due to the fact that data is sent with the same digital power in the related art can be solved, and the quality of the signal sent by the user equipment is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart illustrating a method of controlling data transmission power according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating an application scenario of a method for controlling data transmission power according to an embodiment of the disclosure;
fig. 3 is a block diagram illustrating a control apparatus of data transmission power according to an embodiment of the present disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
The user equipment in the embodiment of the present disclosure may be a mobile phone, or may also be an intelligent terminal, such as an NB-IoT (NarrowBand Internet of Things) terminal, and the like.
Fig. 1 is a flowchart illustrating a method for controlling data transmission power according to an exemplary embodiment of the present disclosure, and referring to fig. 1, the method is applied to a user equipment, and includes the following steps:
step S101, receiving indication information sent by a base station, wherein the indication information comprises information used for indicating the number of subcarriers used by user equipment for sending data;
step S102, determining the actual digital power corresponding to the number of the subcarriers according to the number of the subcarriers and the corresponding relation between the number of the subcarriers calibrated in advance and the digital power used for sending data, wherein in the corresponding relation, the magnitude of the digital power is inversely related to the number of the subcarriers;
and step S103, determining the transmitting power used by the user equipment for transmitting data according to the actual digital power.
Optionally, in step S101, the indication information includes downlink control information and/or random access information. If the technical solution of the embodiment of the present disclosure is applied to the random access procedure between the user equipment and the base station, the indication information sent by the base station may be random access information. However, if the technical solution of the embodiment of the present disclosure is applied to a communication process after the ue establishes a connection with the base station, the indication information sent by the base station may be downlink control information, and the present disclosure does not limit the specific content of the indication information as long as the indication information can indicate the number of subcarriers used by the ue to send data.
Taking the indication information as the downlink control information as an example, after the ue receives the downlink control information sent by the base station, the number of subcarriers used for sending data may be determined according to a parameter used for indicating the number of subcarriers in the downlink control information, such as an Isc (subcarrier indication) parameter.
After the number of subcarriers is determined, in step S102, the actual digital power corresponding to the number of subcarriers may be determined according to the number of subcarriers and a correspondence between the number of subcarriers calibrated in advance and the digital power used for transmitting data, where in the correspondence, the magnitude of the digital power is inversely related to the number of subcarriers, that is, the larger the number of subcarriers is, the smaller the corresponding digital power is, and conversely, the larger the corresponding digital power is.
It should be appreciated that prior to performing step 102, a correspondence between the number of subcarriers and the digital power used to transmit the data should also be determined.
Optionally, in this embodiment of the present disclosure, determining a corresponding relationship between the number of subcarriers and digital power used for transmitting data may be to transmit data by using different numbers of subcarriers, respectively, where for each number of subcarriers, the digital power used for transmitting data is a plurality of different preset digital powers, then for each number of subcarriers, in the plurality of different digital powers, determining the digital power used for transmitting data by the user equipment when an error vector magnitude of the user equipment is smaller than a preset threshold, and finally establishing a corresponding relationship between the digital power and the number of subcarriers.
The presetting of the plurality of different digital powers may be performed by determining a theoretical digital power according to a formula for calculating the digital power in the related art, and then determining the plurality of different digital powers by using the theoretical digital power as a median. For example, if a theoretical digital power of-3 dBFS is determined according to a formula for calculating digital power in the related art, the theoretical digital power can be used as a median value, and the determined multiple different digital powers can be respectively-1 dBFS, -2dBFS, -3dBFS, -4dBFS, -5dBFS, and so on. The embodiment of the present disclosure does not limit the specific numerical value of the digital power, and the user can set a plurality of different digital powers according to the calculated theoretical digital power and different types of the user equipment.
The preset threshold may be a maximum value of the error vector magnitude set when the number of subcarriers is constant. It should be understood that the user may set the preset threshold by himself or herself according to different requirements on the quality of the transmitted signal, for example, if the user has a high requirement on the quality of the transmitted signal, the preset threshold may be set to be smaller, for example, to be 2%, but if the user has a low requirement on the quality of the transmitted signal, the preset threshold may be set to be larger, for example, to be 5%, and so on, and the specific setting of the preset threshold in the embodiments of the present disclosure is not limited.
It should be noted that, under the condition that the number of subcarriers is fixed, when a plurality of different digital powers are used to transmit data, if the magnitudes of error vectors of the user equipment are all smaller than a preset threshold, it may be determined that the maximum digital power in the plurality of different digital powers is the digital power corresponding to the number of subcarriers.
For example, after setting a predetermined threshold value of 2% for a plurality of different digital powers of-2 dBFS, -3dBFS, and-4 dBFS used for the transmission data of 1 number of subcarriers, and determining that the error vector magnitude is 9% when the data is transmitted with the digital power of-2 dBFS, the error vector magnitude is 1.5% when the data is transmitted with the digital power of-3 dBFS, and the error vector magnitude is 1% when the data is transmitted with the digital power of-4 dBFS, it is possible to determine that the maximum digital power when the error vector magnitude is less than 2% is the digital power corresponding to the number of subcarriers, that is, it is possible to determine that the corresponding digital power is-3 dBFS when the number of subcarriers is 1.
After the corresponding relationship between the number of the subcarriers and the digital power is established in the above manner, the digital power corresponding to the number of the subcarriers can be determined according to the number of the subcarriers and the corresponding relationship.
Optionally, when the correspondence includes a correspondence table between the number of subcarriers and the digital power used for transmitting data, the digital power corresponding to the number of subcarriers is determined according to the number of subcarriers and a correspondence between the number of subcarriers calibrated in advance and the digital power used for transmitting data, which may be that the digital power corresponding to the number of subcarriers is searched in the correspondence table according to the number of subcarriers.
For example, if the correspondence between the number of subcarriers and the digital power used for transmitting data is the correspondence table shown in table 1, when the digital power is determined according to the number of subcarriers, the digital power corresponding to the number of subcarriers can be found in the correspondence table according to the number of subcarriers, for example, when the number of subcarriers is 1, the corresponding digital power can be found in the correspondence table as-3 dBFS, and when the number of subcarriers is 3, the corresponding digital power can be found in the correspondence table as-7 dBFS, and so on.
TABLE 1 corresponding relationship table of subcarrier number and digital power
| Number of subcarriers | Digital power (dBFS) |
| 12 | -10 |
| 6 | -9 |
| 3 | -7 |
| 1 | -3 |
It should be understood that, in the correspondence table, the digital powers respectively corresponding to the numbers of the subcarriers are only an implementation condition of the technical solution of the present disclosure, and the digital powers corresponding to the numbers of the subcarriers may be different due to different user equipment and base station equipment, and the present disclosure does not limit the specific contents of the correspondence table.
After the digital power corresponding to the number of subcarriers is determined, the transmit power used by the ue to transmit data may be determined according to the number of subcarriers in step S103.
Since the transmitting power of the user equipment for transmitting data is the sum of the digital power and the power gain value, after the digital power corresponding to the number of the subcarriers is determined, the power gain value corresponding to the number of the subcarriers needs to be determined, and then the digital power corresponding to the number of the subcarriers is added to the corresponding power gain value to obtain the transmitting power of the user equipment for transmitting data.
That is to say, optionally, determining the transmit power used by the user equipment to transmit data according to the number of subcarriers may be to first subtract the actual digital power from the pre-calibrated digital power to obtain a power difference, then add the power difference to the pre-calibrated power gain value to obtain an actual power gain value, and then add the actual digital power to the actual power gain value to obtain the transmit power used by the user equipment to transmit data.
The pre-calibrated power gain value and the pre-calibrated digital power may be determined by multiple tests in a pre-experiment, when the error vector magnitude of the ue is better, or may be determined according to factory settings of the ue and the base station, and the like, which is not limited in this disclosure.
For example, the pre-calibrated digital power is-3 dBFS, the pre-calibrated power gain value is 23dBFS, and the actual digital power is-7 dBFS, then the power difference obtained by subtracting the actual digital power (-7dBFS) from the pre-calibrated digital power (-3dBFS) is 4dBFS, then the power difference (4dBFS) is added to the pre-calibrated power gain value (23dBFS), so as to obtain the actual power gain value of 27dBFS, and finally the actual digital power (-7dBFS) is added to the actual power gain value (27dBFS), so as to obtain the transmit power of the user equipment for transmitting data as 20 dBFS.
In the related art, the same digital power is used no matter the number of subcarriers, so that under the condition that the transmission power is constant, if the digital power is determined to be lower, a larger power gain value is needed, which may cause the error vector magnitude to become larger, and affect the quality of the user equipment transmission signal.
For example, the number of subcarriers is 1, the preset transmit power is 20dBFS, and according to the scheme of the related art, the digital power may be determined to be lower, for example, the digital power is determined to be-10 dBFS, and then a power gain value of 30dBFS is required to obtain the transmit power of 20dBFS, but according to the scheme of the embodiment of the present disclosure, the determined digital power is-3 dBFS according to the number of subcarriers and the correspondence table shown in table 1, and then a power gain value of 23dBFS is only required to obtain the transmit power of 20dBFS, and compared with the power gain value of 30dBFS in the related art, the technical scheme of the embodiment of the present disclosure effectively reduces the power gain value, thereby reducing the error vector magnitude, and effectively improving the quality of the transmit signal. In addition, because the determined power gain value is reduced, the technical scheme of the embodiment of the disclosure can reduce the power consumption of the user equipment to a certain extent.
Referring to fig. 2, a method for controlling data transmission power in the embodiment of the present disclosure is described by taking a user equipment as an NB-IoT terminal.
Referring to fig. 2, the NB-IoT terminal includes a physical layer module, an algorithm module, a radio frequency control module, and a radio frequency chip, where the physical layer module is configured to receive downlink control information and/or random access information sent by a base station, the algorithm module is configured to determine actual digital power corresponding to the number of subcarriers according to the number of the subcarriers, and control baseband data according to the actual digital power, the radio frequency control module is configured to determine an actual power gain value, and the radio frequency chip determines transmission power used by a user equipment to send data according to the actual digital power and the actual power gain value.
For example, in the random access process, the base station sends random access information to the NB-IoT terminal, and after receiving the random access information, the NB-IoT terminal determines the number of subcarriers according to a parameter indicating the number of subcarriers in the random access information, and then sends the number of subcarriers to the algorithm module and the radio frequency control module. Then, the algorithm module determines the digital power corresponding to the number of the subcarriers according to the number of the subcarriers and a preset correspondence table of the number of the subcarriers and the digital power, and controls the baseband data through the digital power, and after the radio frequency control module receives the number of the subcarriers, the radio frequency control module can determine the number of the subcarriers to determine the corresponding actual power gain value by the method described above. And finally, the radio frequency chip determines the transmission power of the NB-IoT terminal for transmitting data according to the actual digital power and the actual power gain value.
By the mode, the digital power of the baseband data can be determined according to the number of the subcarriers, so that the power gain value is adjusted according to the number of the subcarriers, the error vector amplitude of the transmitted signal can be effectively reduced, and the quality of the transmitted signal is improved.
Based on the same inventive concept, referring to fig. 3, an embodiment of the present disclosure further provides a control apparatus 300 for data transmission power, where the control apparatus 300 is applied to a user equipment, and includes:
a receiving module 301, configured to receive indication information sent by a base station, where the indication information includes information used for indicating the number of subcarriers used by user equipment to send data;
a first determining module 302, configured to determine an actual digital power corresponding to the number of subcarriers according to the number of subcarriers and a correspondence between the number of subcarriers calibrated in advance and a digital power used for sending data, where in the correspondence, a magnitude of the digital power is inversely related to a number of the number of subcarriers;
a second determining module 303, configured to determine, according to the actual digital power, a transmission power used by the user equipment for transmitting data.
Optionally, the second determining module 303 is configured to:
subtracting the actual digital power from the pre-calibrated digital power to obtain a power difference value;
adding the power difference value to a pre-calibrated power gain value to obtain an actual power gain value;
and adding the actual digital power to the actual power gain value to obtain the transmitting power used by the user equipment for transmitting data.
Optionally, the first determining module 302 is configured to, when the correspondence includes a correspondence table between the number of subcarriers and digital power used for sending data, search, in the correspondence table, for the digital power corresponding to the number of subcarriers according to the number of subcarriers.
Optionally, the control device 300 further comprises:
the transmitting module is used for respectively transmitting data by using different numbers of subcarriers, wherein the digital power used for transmitting the data is a plurality of preset different digital powers aiming at each number of subcarriers;
a third determining module, configured to determine, for each number of subcarriers, a digital power used by the ue to send data when an error vector magnitude of the ue is smaller than a preset threshold among a plurality of different digital powers;
and the establishing module is used for establishing the corresponding relation between the digital power and the number of the subcarriers.
Optionally, the receiving module 301 is configured to receive downlink control information and/or random access information sent by the base station.
The control device of the data transmitting power can receive the indication information sent by the base station and determine the actual digital power according to the number of the subcarriers included in the indication information, thereby outputting the transmitting power determined according to the actual digital power, so that the power gain value is adjusted according to the number of the subcarriers, the error vector amplitude of the transmitting signal can be effectively reduced, and the quality of the transmitting signal is improved.
Based on the same inventive concept, the disclosed embodiments also provide a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of any of the above-mentioned methods for controlling data transmission power.
Through the computer readable storage medium, the digital power of the baseband data can be determined according to the number of the subcarriers, so that the power gain value is adjusted according to the number of the subcarriers, the error vector magnitude of the transmitted signal can be effectively reduced, and the quality of the transmitted signal is improved.
Based on the same inventive concept, the embodiment of the present disclosure further provides a user equipment, which includes any one of the above devices for controlling data transmission power.
Through the user equipment, the indication information sent by the base station can be received, and the actual digital power is determined according to the number of the subcarriers included in the indication information, so that the transmitting power is determined according to the actual digital power, the error vector amplitude of the transmitting signal is reduced, and the quality of the transmitting signal is improved.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (12)
1. A method for controlling data transmission power, applied to user equipment, is characterized by comprising:
receiving indication information sent by a base station, wherein the indication information comprises information used for indicating the number of subcarriers used by the user equipment for sending data;
determining the actual digital power corresponding to the number of the subcarriers according to the number of the subcarriers and the corresponding relation between the number of the subcarriers calibrated in advance and the digital power used for sending data, wherein in the corresponding relation, the magnitude of the digital power is inversely related to the number of the subcarriers;
and determining the transmitting power used for transmitting data by the user equipment according to the actual digital power.
2. The method of claim 1, wherein the determining the transmit power used by the user equipment for transmitting data according to the actual digital power comprises:
subtracting the actual digital power from the pre-calibrated digital power to obtain a power difference value;
adding the power difference value to a pre-calibrated power gain value to obtain an actual power gain value;
and adding the actual digital power to the actual power gain value to obtain the transmitting power used by the user equipment for transmitting data.
3. The method according to claim 1 or 2, wherein the correspondence relationship comprises a correspondence relationship table between the number of subcarriers and the digital power used for transmitting data, and the determining the digital power corresponding to the number of subcarriers according to the number of subcarriers and the correspondence relationship between the number of subcarriers calibrated in advance and the digital power used for transmitting data comprises:
and searching the digital power corresponding to the number of the subcarriers in the corresponding relation table according to the number of the subcarriers.
4. The method of claim 1 or 2, further comprising:
respectively using different numbers of subcarriers to transmit data, wherein the digital power used for transmitting the data is a plurality of preset different digital powers aiming at each number of subcarriers;
for each number of subcarriers, determining, among the plurality of different digital powers, a digital power used by the user equipment to transmit data when an error vector magnitude of the user equipment is smaller than a preset threshold;
and establishing a corresponding relation between the digital power and the number of the subcarriers.
5. The method according to claim 1 or 2, wherein the indication information comprises downlink control information and/or random access information.
6. An apparatus for controlling data transmission power, applied to a user equipment, the apparatus comprising:
a receiving module, configured to receive indication information sent by a base station, where the indication information includes information used to indicate the number of subcarriers used by the ue to send data;
a first determining module, configured to determine an actual digital power corresponding to the number of subcarriers according to the number of subcarriers and a correspondence between the number of subcarriers calibrated in advance and a digital power used for sending data, where in the correspondence, a magnitude of the digital power is inversely related to a number of the number of subcarriers;
and the second determining module is used for determining the transmitting power used by the user equipment for transmitting data according to the actual digital power.
7. The apparatus of claim 6, wherein the second determining module is configured to:
subtracting the actual digital power from the pre-calibrated digital power to obtain a power difference value;
adding the power difference value to a pre-calibrated power gain value to obtain an actual power gain value;
and adding the actual digital power to the actual power gain value to obtain the transmitting power used by the user equipment for transmitting data.
8. The apparatus of claim 6 or 7, wherein the first determining module is configured to: and when the corresponding relation comprises a corresponding relation table between the number of the subcarriers and the digital power used for sending data, searching the digital power corresponding to the number of the subcarriers in the corresponding relation table according to the number of the subcarriers.
9. The apparatus of claim 6 or 7, further comprising:
the transmitting module is used for respectively transmitting data by using different numbers of subcarriers, wherein the digital power used for transmitting the data is a plurality of preset different digital powers aiming at each number of subcarriers;
a third determining module, configured to determine, for each number of subcarriers, a digital power used by the ue to transmit data when an error vector magnitude of the ue is smaller than a preset threshold among the multiple different digital powers;
and the establishing module is used for establishing the corresponding relation between the digital power and the number of the subcarriers.
10. The apparatus of claim 6 or 7, wherein the receiving module is configured to receive downlink control information and/or random access information sent by a base station.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5.
12. A user equipment, characterized in that the user equipment comprises the data transmission power control device of any of claims 6-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975632.8A CN110858995B (en) | 2018-08-24 | 2018-08-24 | Method and device for controlling data transmission power, storage medium and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810975632.8A CN110858995B (en) | 2018-08-24 | 2018-08-24 | Method and device for controlling data transmission power, storage medium and user equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN110858995A true CN110858995A (en) | 2020-03-03 |
| CN110858995B CN110858995B (en) | 2022-04-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333894A (en) * | 2007-03-26 | 2015-02-04 | 高通股份有限公司 | Determining per sector received power level |
| CN104918311A (en) * | 2014-03-14 | 2015-09-16 | 华为技术有限公司 | Power control method and device |
| CN105744611A (en) * | 2014-12-10 | 2016-07-06 | 中兴通讯股份有限公司 | Method and device for realizing power control |
| WO2016180077A1 (en) * | 2015-05-14 | 2016-11-17 | 中兴通讯股份有限公司 | Control method, terminal, base station and system for uplink power and computer storage medium |
| WO2018006355A1 (en) * | 2016-07-07 | 2018-01-11 | 华为技术有限公司 | Transmission weight value selection method and base station |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333894A (en) * | 2007-03-26 | 2015-02-04 | 高通股份有限公司 | Determining per sector received power level |
| CN104918311A (en) * | 2014-03-14 | 2015-09-16 | 华为技术有限公司 | Power control method and device |
| CN105744611A (en) * | 2014-12-10 | 2016-07-06 | 中兴通讯股份有限公司 | Method and device for realizing power control |
| WO2016180077A1 (en) * | 2015-05-14 | 2016-11-17 | 中兴通讯股份有限公司 | Control method, terminal, base station and system for uplink power and computer storage medium |
| WO2018006355A1 (en) * | 2016-07-07 | 2018-01-11 | 华为技术有限公司 | Transmission weight value selection method and base station |
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| CN110858995B (en) | 2022-04-22 |
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