CN106060918B - Power control method and base station - Google Patents

Power control method and base station Download PDF

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CN106060918B
CN106060918B CN201610405230.5A CN201610405230A CN106060918B CN 106060918 B CN106060918 B CN 106060918B CN 201610405230 A CN201610405230 A CN 201610405230A CN 106060918 B CN106060918 B CN 106060918B
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pucch
noise ratio
signal
power control
base station
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CN106060918A (en
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陈伟
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The embodiment of the invention discloses a power control method, which is used for solving the problem of high false detection rate of CQI and RANK in PUCCH in the prior art, and the false detection rate of the CQI and RANK is reduced by performing power control on the PUCCH, so that the network performance of LTE is improved. The method provided by the embodiment of the invention comprises the following steps: a base station determines a Physical Uplink Control Channel (PUCCH); the base station determines an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH; if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio, the base station determines a power control word of the PUCCH according to the target signal-to-noise ratio; and the base station sends the power control word to User Equipment (UE) so that the UE controls the transmitting power of the PUCCH according to the power control word.

Description

Power control method and base station
Technical Field
The present invention relates to the field of communications, and in particular, to a power control method and a base station.
Background
When analyzing measured data of a Long Term Evolution (LTE) system, it is found that a Physical Uplink Control Channel (PUCCH) has a problem that a Channel Quality Indicator (CQI) and a RANK (RANK) have high false detection rates and are seriously inconsistent with a design expectation, thereby having a significant impact on network performance, as shown in table 1 below, a target false detection rate of the CQI is 1%, an actual false detection rate of the CQI is 25.86%, a target false detection rate of the RANK is 0.1%, and an actual false detection rate of the RANK is 5.96%.
Classification Number of samples Number of false detections Actual false rate Target false detection rate
CQI 9366 2422 25.86％ 1％
RANK 604 36 5.96％ 0.1％
TABLE 1
At present, a PUCCH in an LTE system is only controlled based on a Signal-to-Noise Ratio (SINR) of Format1a/1b, and fig. 1 is a statistical diagram of LTE experimental network test data acquired through experiments, wherein as can be seen from the diagram, interference on Format2x is 4-15 dB greater than that of Format1a/1b, although the SINR of Format1a/1b has converged to a Target value (the SINR Target of Format1a is 16dB and is fixed), due to the interference imbalance between Format2x and Format1a/1b, the SINR of Format2x is basically about 0dB, and normally should be about 7 dB. The CQI and RANK false detections are caused to a certain extent, thereby affecting the network performance of LTE.
Disclosure of Invention
The embodiment of the invention provides a power control method, which is used for solving the problem that the false detection rate of CQI and RANK is high in PUCCH in the prior art, and the false detection rate of CQI and RANK is reduced by performing power control on the PUCCH, so that the network performance of LTE is improved.
A first aspect of the present invention provides a power control method, including: a base station determines a Physical Uplink Control Channel (PUCCH); the base station determines an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH; if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio, the base station determines a power control word of the PUCCH according to the target signal-to-noise ratio; and the base station sends the power control word to User Equipment (UE) so that the UE controls the transmitting power of the PUCCH according to the power control word.
Different from the prior art, after determining a PUCCH, a base station further determines an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH, and if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio, determines a power control word of the PUCCH according to the target signal-to-noise ratio; and sending the power control word to User Equipment (UE) so that the UE controls the transmitting power of the PUCCH according to the power control word. Therefore, the power control word is determined according to the signal-to-noise ratio of the PUCCH, and is used for controlling the transmitting power of the PUCCH and reducing the false detection rate of CQI and RANK, so that the network performance of LTE is improved.
In some possible implementations, the determining, by the base station, the actual signal-to-noise ratio of the PUCCH includes: the base station acquires data on the PUCCH; the base station determines the actual signal-to-noise ratio by processing data on the PUCCH.
The base station determines the actual signal-to-noise ratio of the PUCCH by acquiring and processing data on the PUCCH, for example: the method comprises the steps of firstly obtaining data on a PUCCH, demodulating the data on the PUCCH, inputting the demodulated data to a Media Access Control (MAC) scheduling layer, filtering for a plurality of scheduling periods, and then outputting an actual signal-to-noise ratio, so that the accuracy of obtaining and determining the actual signal-to-noise ratio is improved.
In other possible implementations, the determining, by the base station, the target signal-to-noise ratio of the PUCCH includes: the base station acquires a functional relation between the error rate and the signal-to-noise ratio of the PUCCH and a target error rate of the PUCCH; and the base station determines the target signal-to-noise ratio according to the functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH.
Therefore, by obtaining a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH, the target bit error rate is substituted into the functional relation, so that the target signal-to-noise ratio is determined. It can be seen that the functional relationship between the bit error rate and the signal-to-noise ratio of the PUCCH is invariant, and each bit error rate has a corresponding signal-to-noise ratio according to the functional relationship.
In other possible implementations, the determining, by the base station, the power control word of the PUCCH according to the target snr includes: the base station acquires a functional relation between the signal-to-noise ratio of the PUCCH and a power control word; and the base station determines the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
It can be seen that by obtaining a functional relationship between the signal-to-noise ratio of the PUCCH and the power control word, the target signal-to-noise ratio is substituted into the functional relationship, thereby determining the power control word. It can be seen that the functional relationship between the signal-to-noise ratio of the PUCCH and the power control word is invariant, and as long as the signal-to-noise ratio is given, the power control word can be determined, and the power control word is used for controlling the transmission power of the PUCCH, reducing the false detection rate of CQI and RANK, thereby improving the network performance of LTE.
In other possible implementations, the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
As can be seen, there are many formats of the PUCCH, and in some possible implementations, the PUCCH includes Format2 × Format, where x is 1, a, b, or the like, and in terms of the existing Format2 × Format, only includes at least one Format of Format2, Format2a, and Format2 b.
A second aspect of the present invention provides a base station, wherein the base station is configured to implement the functions of the method provided in the first aspect or any one of the possible implementation manners of the first aspect, and the base station is implemented by hardware/software, and the hardware/software includes units corresponding to the functions.
Drawings
FIG. 1 is a statistical chart of LTE test network test data in the prior art;
FIG. 2 is a system architecture diagram of a power control method in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a base station according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an embodiment of a power control method according to an embodiment of the present invention;
FIG. 5a is a schematic diagram of an embodiment of data flow in an embodiment of the present invention;
FIG. 5b is a diagram illustrating a scenario of a power control method according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of a base station in the embodiment of the present invention.
Detailed Description
The embodiment of the invention provides a power control method, which is used for solving the problem that the false detection rate of CQI and RANK is high in PUCCH in the prior art, and the false detection rate of CQI and RANK is reduced by performing power control on the PUCCH, so that the network performance of LTE is improved.
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.
Referring to fig. 2, which is a system framework diagram according to an embodiment of the present invention, a system according to an embodiment of the present invention includes a base station and a User Equipment (UE), where the base station is configured to transmit downlink data to the UE, and the UE is configured to transmit uplink data to the base station. In the embodiment of the present invention, the UE may be any terminal device including a mobile phone, a tablet computer, a Personal Digital Assistant (abbreviated as PDA), a vehicle-mounted computer, and the like.
Fig. 3 is a schematic structural diagram of a base station 300 according to an embodiment of the present invention, where the base station 300 may have a relatively large difference due to different configurations or performances, and may include one or more processors 301, a memory 302, and one or more transmission units 303. Wherein memory 302 may be a transitory or persistent store, memory 302 stores computer instructions. Furthermore, the memory 302, the processor 301 and the transmission unit 303 are connected to each other via a bus, and a series of computer instruction operations in the memory 302 are executed on the processor 301. The base station 300 may also include one or more power supplies 304.
Wherein the processor 301 is configured to determine a physical uplink control channel, PUCCH; determining an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH;
the processor 301 is further configured to compare the actual signal-to-noise ratio with the target signal-to-noise ratio, and determine a power control word of the PUCCH according to the target signal-to-noise ratio if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio;
the transmission unit 303 is configured to send the power control word to a user equipment UE, so that the UE controls the transmit power of the PUCCH according to the power control word.
In some possible implementations, the processor 301 is specifically configured to obtain data on the PUCCH; determining the actual signal-to-noise ratio by processing data on the PUCCH.
In other possible implementations, the processor 301 is specifically configured to obtain a functional relationship between a bit error rate and a signal-to-noise ratio of the PUCCH and a target bit error rate of the PUCCH; and determining the target signal-to-noise ratio according to a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH.
In other possible implementations, the processor 301 is specifically configured to obtain a functional relationship between a signal-to-noise ratio of the PUCCH and a power control word; and determining the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
It can be seen that by obtaining a functional relationship between the signal-to-noise ratio of the PUCCH and the power control word, the target signal-to-noise ratio is substituted into the functional relationship, thereby determining the power control word. It can be seen that the functional relationship between the signal-to-noise ratio of the PUCCH and the power control word is invariant, and as long as the signal-to-noise ratio is given, the power control word can be determined, and the power control word is used for controlling the transmission power of the PUCCH, reducing the false detection rate of CQI and RANK, thereby improving the network performance of LTE.
Referring to fig. 4, a schematic diagram of an embodiment of a power control method according to an embodiment of the present invention includes the following specific steps:
step 401, the base station determines a physical uplink control channel PUCCH.
In some possible implementations, the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
In practical application, as shown in fig. 5a, after receiving uplink data sent by a UE, a base station performs channel separation on the data, so as to separate data on a PUCCH, so as to determine an actual signal-to-noise ratio of the PUCCH in the following steps, for example: the UE transmits uplink data to a PHY of the base station through a MAC and a Physical Layer (abbreviated as PHY).
Step 402, the base station determines the actual signal-to-noise ratio of the PUCCH and the target signal-to-noise ratio of the PUCCH.
In some possible implementations, the determining, by the base station, the actual signal-to-noise ratio of the PUCCH includes: the base station acquires data on the PUCCH; the base station determines the actual signal-to-noise ratio by processing data on the PUCCH.
In practical application, a base station firstly demodulates and measures data on an acquired PUCCH, the demodulated data is uploaded to an MAC scheduling layer of the base station, and the MAC scheduling layer performs filtering through a plurality of scheduling periods, so that the actual signal-to-noise ratio is determined.
In some possible implementations, the determining, by the base station, the target signal-to-noise ratio of the PUCCH includes: the base station acquires a functional relation between the error rate and the signal-to-noise ratio of the PUCCH and a target error rate of the PUCCH; and the base station determines the target signal-to-noise ratio according to the functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH.
Therefore, by obtaining a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH, the target bit error rate is substituted into the functional relation, so that the target signal-to-noise ratio is determined. It can be seen that the functional relationship between the bit error rate and the signal-to-noise ratio of the PUCCH is invariant, and each bit error rate has a corresponding signal-to-noise ratio according to the functional relationship.
Step 403, the base station determines whether the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio; if yes, go to step 404, otherwise, end the process.
If the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio, determining the power control word of the PUCCH according to the target signal-to-noise ratio, otherwise, ending the process.
And step 404, the base station determines the power control word of the PUCCH according to the target signal-to-noise ratio.
In some possible implementations, the determining, by the base station, the power control word of the PUCCH according to the target signal-to-noise ratio includes: the base station acquires a functional relation between the signal-to-noise ratio of the PUCCH and a power control word; and the base station determines the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
It can be seen that by obtaining a functional relationship between the signal-to-noise ratio of the PUCCH and the power control word, the target signal-to-noise ratio is substituted into the functional relationship, thereby determining the power control word. It can be seen that the functional relationship between the signal-to-noise ratio of the PUCCH and the power control word is invariant, and as long as the signal-to-noise ratio is given, the power control word can be determined, and the power control word is used for controlling the transmission power of the PUCCH, reducing the false detection rate of CQI and RANK, thereby improving the network performance of LTE.
Step 405, the base station sends the power control word to a user equipment UE.
And 406, the UE controls the transmission power of the PUCCH according to the power control word.
It can be seen that by obtaining a functional relationship between the signal-to-noise ratio of the PUCCH and the power control word, the target signal-to-noise ratio is substituted into the functional relationship, thereby determining the power control word. It can be seen that the functional relationship between the signal-to-noise ratio of the PUCCH and the power control word is invariant, and as long as the signal-to-noise ratio is given, the power control word can be determined, and the power control word is used for controlling the transmission power of the PUCCH, reducing the false detection rate of CQI and RANK, thereby improving the network performance of LTE.
As shown in fig. 5b, in practical applications, after receiving uplink data sent by the UE, the base station performs channel separation on the uplink data, so as to separate data on the PUCCH, further, the base station demodulates and measures the data on the PUCCH, and uploads the demodulated data to the MAC scheduling layer of the base station, the MAC scheduling layer performs filtering through multiple scheduling cycles, and outputs an actual signal-to-noise ratio (filtered sinr), the MAC scheduling layer of the base station compares the actual error rate of the PUCCH with a target error rate, and outputs a target signal-to-noise ratio (SinrTarget) through the algorithm module i by using a functional relationship between the error rate and the signal-to-noise ratio and the target error rate, further, the MAC of the base station inputs the filtered sinr and the sintargett into the algorithm module ii, the algorithm module ii outputs a power control word of the PUCCH by using a functional relationship between the signal-to-noise ratio and the power control word, further, the base station sends the power control word to the UE through a downlink channel, after the UE analyzes the power control word, the UE adjusts the transmission power of the PUCCH through the power control word, and the specific adjustment process is as follows: after receiving the power control word, the UE converts the power control word into a power control parameter, and sets the power control parameter as the power intensity of the transmitted signal.
To facilitate a better understanding of the above-described related methods of embodiments of the present invention, the following also provides related apparatus for cooperating with the above-described methods.
Referring to fig. 6, another schematic structural diagram of a base station 600 according to an embodiment of the present invention, the base station 600 includes: a determination module 601, a comparison module 602, and a sending module 603.
A determining module 601, configured to determine a physical uplink control channel PUCCH;
the determining module 601 is further configured to determine an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH;
a comparing module 602, configured to compare the actual signal-to-noise ratio with the target signal-to-noise ratio;
the determining module 601 is further configured to determine a power control word of the PUCCH according to the target signal-to-noise ratio if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio;
a sending module 603, configured to send the power control word to a user equipment UE, so that the UE controls the transmit power of the PUCCH according to the power control word.
In some possible implementations, the determining module 601 is specifically configured to obtain data on the PUCCH; determining the actual signal-to-noise ratio by processing data on the PUCCH.
In other possible implementation manners, the determining module 601 is specifically configured to obtain a functional relationship between a bit error rate and a signal-to-noise ratio of the PUCCH and a target bit error rate of the PUCCH; and determining the target signal-to-noise ratio according to a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH.
In other possible implementations, the determining module 601 is specifically configured to obtain a functional relationship between a signal-to-noise ratio of the PUCCH and a power control word; and determining the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
In other possible implementations, the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
In a possible implementation, the sending module may be a software module that can be executed in the transmission unit of the base station, and the determining module and the comparing module may also be software modules that can be executed in a processor of a computer system, or may also be specific integrated circuits.
It should be noted that the base station shown in fig. 6 may correspond to the base station in the embodiment of the method shown in fig. 4, and the above and other operations and/or functions of each unit in the base station are respectively for implementing the corresponding flow of the method shown in fig. 3, and are not described herein again for brevity.
In summary, by obtaining a functional relationship between the signal-to-noise ratio of the PUCCH and the power control word, the target signal-to-noise ratio is substituted into the functional relationship, so as to determine the power control word. It can be seen that the functional relationship between the signal-to-noise ratio of the PUCCH and the power control word is invariant, and as long as the signal-to-noise ratio is given, the power control word can be determined, and the power control word is used for controlling the transmission power of the PUCCH, reducing the false detection rate of CQI and RANK, thereby improving the network performance of LTE.
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 above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, 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 integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
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 (9)

1. A method of power control, comprising:
a base station determines a Physical Uplink Control Channel (PUCCH);
the base station determines an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH, wherein the actual signal-to-noise ratio is an actual signal-to-noise ratio of Format2x in the PUCCH;
if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio, the base station determines a power control word of the PUCCH according to the target signal-to-noise ratio;
the base station sends the power control word to User Equipment (UE) so that the UE controls the transmitting power of the PUCCH according to the power control word;
the base station determining the target signal-to-noise ratio of the PUCCH comprises the following steps:
the base station acquires a functional relation between the error rate and the signal-to-noise ratio of the PUCCH and a target error rate of the PUCCH;
the base station determines the target signal-to-noise ratio according to a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH;
the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
2. The method of claim 1, wherein the base station determining the actual signal-to-noise ratio of the PUCCH comprises:
the base station acquires data on the PUCCH;
the base station determines the actual signal-to-noise ratio by processing data on the PUCCH.
3. The method of claim 1, wherein the base station determining the power control word of the PUCCH according to the target signal-to-noise ratio comprises:
the base station acquires a functional relation between the signal-to-noise ratio of the PUCCH and a power control word;
and the base station determines the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
4. A base station, comprising:
a determining module, configured to determine a physical uplink control channel PUCCH;
the determining module is further configured to determine an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH, where the actual signal-to-noise ratio is an actual signal-to-noise ratio of Format2x in the PUCCH;
the comparison module is used for comparing the actual signal-to-noise ratio with the target signal-to-noise ratio;
the determining module is further configured to determine a power control word of the PUCCH according to the target signal-to-noise ratio if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio;
a sending module, configured to send the power control word to a user equipment UE, so that the UE controls a transmission power of the PUCCH according to the power control word;
the determining module is specifically configured to obtain a functional relationship between a bit error rate and a signal-to-noise ratio of the PUCCH and a target bit error rate of the PUCCH; determining the target signal-to-noise ratio according to a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH;
the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
5. The base station according to claim 4, wherein the determining module is specifically configured to obtain data on the PUCCH; determining the actual signal-to-noise ratio by processing data on the PUCCH.
6. The base station according to claim 4, wherein the determining module is specifically configured to obtain a functional relationship between a signal-to-noise ratio of the PUCCH and a power control word; and determining the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
7. A base station, characterized in that the base station comprises: the device comprises a memory, a processor and a transmission unit, wherein the memory, the processor and the transmission unit are connected with each other through a bus, and computer instructions are stored in the memory; wherein,
the processor is configured to determine a Physical Uplink Control Channel (PUCCH); determining an actual signal-to-noise ratio of the PUCCH and a target signal-to-noise ratio of the PUCCH, wherein the actual signal-to-noise ratio is an actual signal-to-noise ratio of Format2x in the PUCCH;
the processor is further configured to compare the actual signal-to-noise ratio with the target signal-to-noise ratio, and determine a power control word of the PUCCH according to the target signal-to-noise ratio if the actual signal-to-noise ratio is smaller than the target signal-to-noise ratio;
the transmission unit is configured to send the power control word to a user equipment UE, so that the UE controls the transmit power of the PUCCH according to the power control word;
the processor is specifically configured to obtain a functional relationship between a bit error rate and a signal-to-noise ratio of the PUCCH and a target bit error rate of the PUCCH; determining the target signal-to-noise ratio according to a functional relation between the bit error rate and the signal-to-noise ratio of the PUCCH and the target bit error rate of the PUCCH;
the PUCCH includes at least one Format of Format2, Format2a, and Format2 b.
8. The base station of claim 7, wherein the processor is specifically configured to obtain data on the PUCCH; determining the actual signal-to-noise ratio by processing data on the PUCCH.
9. The base station of claim 7, wherein the processor is specifically configured to obtain a functional relationship between a signal-to-noise ratio of the PUCCH and a power control word; and determining the power control word according to the functional relation between the signal-to-noise ratio of the PUCCH and the power control word and the target signal-to-noise ratio.
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CN113141645A (en) * 2020-01-16 2021-07-20 普天信息技术有限公司 PUCCH transmission power control method and rail transit data transmission method
CN113473586A (en) * 2020-03-30 2021-10-01 福州市博讯网络科技有限公司 Wireless video transmission system power control method for high-definition video transmission

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