WO2024148982A1 - Pucch的发射功率控制方法、装置及用户终端 - Google Patents

Pucch的发射功率控制方法、装置及用户终端 Download PDF

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Publication number
WO2024148982A1
WO2024148982A1 PCT/CN2023/136369 CN2023136369W WO2024148982A1 WO 2024148982 A1 WO2024148982 A1 WO 2024148982A1 CN 2023136369 W CN2023136369 W CN 2023136369W WO 2024148982 A1 WO2024148982 A1 WO 2024148982A1
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WIPO (PCT)
Prior art keywords
transmit power
pucch
increase amplitude
prach
value
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PCT/CN2023/136369
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English (en)
French (fr)
Inventor
杨书涛
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Honor Device Co Ltd
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Honor Device Co Ltd
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Priority to EP23915740.7A priority Critical patent/EP4529296A4/en
Priority to US18/877,640 priority patent/US20250392992A1/en
Publication of WO2024148982A1 publication Critical patent/WO2024148982A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • 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]
    • H04W52/18—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
    • H04W52/247—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • 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
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362—Aspects of the step size
    • 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
    • H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • 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
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application belongs to the field of communication technology, and in particular, relates to a PUCCH transmission power control method, device, user terminal and computer-readable storage medium.
  • a user terminal When a user terminal (UE) establishes a connection with a base station, if the distance between the UE and the base station is short, the path loss experienced by the signal is small, and the UE can establish communication with the base station with a smaller transmit power. On the contrary, if the distance between the UE and the base station is far, the path loss experienced by the signal is large, and the UE needs to use a larger transmit power to establish communication with the base station. In order to compensate for the transmission loss of different paths and enable the base station to maintain a stable receiving power, it is necessary to control the transmit power of the uplink control channel (Physical Uplink Control Channel, PUCCH) between the UE and the base station.
  • PUCCH Physical Uplink Control Channel
  • the UE during the process of establishing a connection between a UE and a base station through random access, if the reference signal receiving power (RSRP) is relatively poor, the UE needs to retry multiple random access channel (PRACH) transmissions to successfully access the network. During each retry, the UE will increase the transmit power until the random access is successful, and in the subsequent PUCCH transmit power calculation, the power increase amplitude during the random access process will be used as the transmit power adjustment value.
  • RSRP reference signal receiving power
  • PRACH random access channel
  • the base station configures the power configuration field (such as p0-PUCCH-Value) corresponding to the PUCCH in the Radio Resource Control (RRC) establishment message
  • the power increase amplitude during the random access process will be reset to 0, causing the transmit power of the PUCCH to drop sharply, resulting in the failure of the PUCCH to send information, which in turn causes uplink data transmission congestion, causing the system to freeze or even disconnect.
  • the embodiments of the present application provide a PUCCH transmission power control method, device, UE and storage medium, which can solve the problem that when the base station configures the power configuration field corresponding to the PUCCH in the RRC establishment message, the power increase amplitude in the random access process will be reset to 0, causing the PUCCH transmission power to drop sharply, thereby causing the failure to send the information carried by the PUCCH, and then causing uplink data transmission congestion, causing the system to freeze or even disconnect.
  • an embodiment of the present application provides a method for controlling the transmit power of a PUCCH, including: obtaining a PRACH transmit power increase amplitude when random access between a UE and a base station is successful; obtaining an RRC establishment message sent by the base station; when the RRC establishment message includes a power configuration field corresponding to the PUCCH, adjusting the PRACH transmit power increase amplitude according to the value of the PRACH transmit power increase amplitude and/or the power configuration field; adjusting the PRACH transmit power increase amplitude according to the adjusted PRACH
  • the transmit power increase range determines the target power adjustment value corresponding to the PUCCH; the target transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the adjusting the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field includes:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the adjusting the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field includes:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the adjusting the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field includes:
  • the PRACH transmit power increase amplitude remains unchanged.
  • the PRACH transmit power increase amplitude is set to 0;
  • the adjusting the PRACH transmit power increase amplitude according to the value of the PRACH transmit power increase amplitude and/or the power configuration field includes:
  • the initial PUCCH message is a feedback message sent by the UE to the base station through the PUCCH and includes a parsing result of the RRC establishment message;
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude remains unchanged.
  • the determining the initial transmit power corresponding to the initial PUCCH message includes:
  • the initial transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula and the PRACH transmit power increase amplitude.
  • the adjusting the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field includes:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the method before determining the target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude, the method further includes:
  • the PRACH transmit power increase amplitude remains unchanged
  • the target transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value, including:
  • the target transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula and the target power adjustment value.
  • the method before determining the target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude, the method further includes:
  • TPC Transmit Power Control
  • the above-mentioned determination of the target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude includes:
  • the sum of the adjusted PRACH transmit power increase amplitude and the TPC power adjustment value is determined as the target power adjustment value.
  • an embodiment of the present application provides a PUCCH transmit power control device, including: a first acquisition module, used to obtain the PRACH transmit power increase amplitude when the UE and the base station successfully perform random access; a second acquisition module, used to obtain the RRC establishment message sent by the base station; a first adjustment module, used to adjust the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field when the power configuration field corresponding to the PUCCH is included in the RRC establishment message; a first determination module, used to determine the target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude; a second determination module, used to determine the target transmit power corresponding to the PUCCH according to a preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the first adjustment module includes:
  • a first adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the PRACH transmit power increase amplitude is less than or equal to a first threshold
  • the second adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the PRACH transmit power increase amplitude is greater than the first threshold.
  • the first adjustment module includes:
  • a third adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the value of the power configuration field is greater than the second threshold;
  • the fourth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the value of the power configuration field is less than or equal to the second threshold.
  • the first adjustment module includes:
  • the sixth adjustment unit is used to adjust the PRACH transmit power up to a value greater than the first threshold or the power configuration field When the value of is less than or equal to the second threshold, the PRACH transmit power increase amplitude is kept unchanged.
  • the first adjustment module includes:
  • a first determining unit configured to determine a difference between a PRACH transmit power increase amplitude and a value of a power configuration field
  • a seventh adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the difference is less than or equal to a third threshold
  • the eighth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the difference is greater than the third threshold.
  • the first adjustment module includes:
  • a ninth adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the initial transmit power is less than the maximum transmit power corresponding to the UE;
  • the tenth adjustment unit is used to keep the PRACH transmit power increase range unchanged when the initial transmit power is greater than or equal to the maximum transmit power.
  • the second determining unit is specifically configured to:
  • the initial transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula and the PRACH transmit power increase amplitude.
  • the first adjustment module includes:
  • a first determining unit configured to determine a difference between a PRACH transmit power increase amplitude and a value of a power configuration field
  • a second determining unit is used to determine the initial transmit power corresponding to the PUCCH according to a preset PUCCH transmit power calculation formula and a PRACH transmit power increase amplitude;
  • An eleventh adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the difference is less than or equal to a third threshold and the initial transmit power is less than a maximum transmit power corresponding to the UE;
  • the twelfth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the difference is greater than a third threshold or the initial transmit power is greater than or equal to the maximum transmit power.
  • the apparatus further includes:
  • the second adjustment module is used to keep the PRACH transmission power increase amplitude unchanged when the power configuration field is not included in the RRC establishment message;
  • the second determining module includes:
  • the third determining unit is used to determine the target transmit power corresponding to the PUCCH according to a preset PUCCH transmit power calculation formula and a target power adjustment value.
  • the apparatus further includes:
  • a third acquisition module is used to acquire a TPC instruction sent by the base station, wherein the TPC instruction includes a TPC power adjustment value corresponding to the PUCCH;
  • the first determining module includes:
  • the fourth determining unit is used to determine the sum of the adjusted PRACH transmit power increase amplitude and the TPC power adjustment value as the target power adjustment value.
  • an embodiment of the present application provides a UE, including: a memory, a processor, and a memory stored in the memory
  • a computer program is provided in the embodiment of the present invention and can be run on a processor, wherein when the processor executes the computer program, the transmission power control method of the PUCCH as described above is implemented.
  • an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the PUCCH transmission power control method as described above is implemented.
  • an embodiment of the present application provides a computer program product.
  • the computer program product runs on a UE, the UE executes the PUCCH transmission power control method as described above.
  • the beneficial effect of the embodiments of the present application is as follows: when the base station configures the power configuration field corresponding to the PUCCH in the RRC establishment message, the PRACH transmit power increase amplitude is flexibly adjusted according to the PRACH transmit power increase amplitude and the actual numerical level of the power configuration field during the random access process, so that when the PUCCH transmit power is subsequently determined, the PUCCH transmit power will not drop sharply due to the change in the PRACH transmit power increase amplitude, so as to ensure that the information carried by the PUCCH can be successfully sent, thereby avoiding data transmission congestion in the uplink between the base station and the UE, and improving the communication stability and fluency of the system.
  • FIG1 is a schematic flow chart of a method for controlling the transmit power of a PUCCH according to an embodiment of the present application
  • FIG2 is a schematic flow chart of a method for controlling the transmit power of a PUCCH according to another embodiment of the present application.
  • FIG3 is a schematic structural diagram of a PUCCH transmission power control device provided in an embodiment of the present application.
  • FIG4 is a schematic diagram of the structure of a UE provided in an embodiment of the present application.
  • the term “if” can be interpreted as “when” or “uponce” or “in response to determining” or “in response to detecting”, depending on the context.
  • the phrase “if it is determined” or “if [described condition or event] is detected” can be interpreted as meaning “uponce it is determined” or “in response to determining” or “uponce [described condition or event] is detected” or “in response to detecting [described condition or event]", depending on the context.
  • references to "one embodiment” or “some embodiments” etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements “in one embodiment”, “in some embodiments”, “in some other embodiments”, “in some other embodiments”, etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean “one or more but not all embodiments", unless otherwise specifically emphasized in other ways.
  • the terms “including”, “comprising”, “having” and their variations all mean “including but not limited to”, unless otherwise specifically emphasized in other ways.
  • FIG1 is a schematic flow chart of a method for controlling the transmission power of a PUCCH provided in an embodiment of the present application.
  • Step 101 obtaining the PRACH transmission power increase amplitude when the UE and the base station have successful random access.
  • the PUCCH transmit power control method of the embodiment of the present application can be executed by the PUCCH transmit power control device of the embodiment of the present application.
  • the PUCCH transmit power control device of the embodiment of the present application can be configured in any UE to execute the PUCCH transmit power control method of the embodiment of the present application.
  • the PUCCH transmit power control device of the embodiment of the present application can be configured in a UE such as a mobile phone, a computer, a wearable device, etc., to realize the transmit power control of the PUCCH during the communication between the UE and the base station.
  • the PRACH transmit power increase range may refer to a total adjustment amount of the PRACH transmit power during a random access process between the UE and the base station.
  • the UE during the process of random access with the base station, the UE will continuously adjust the transmit power of PRACH according to the RSRP of the current environment until the random access is successful.
  • the UE can continuously increase the transmit power of PRACH so that the base station can successfully receive the message sent by the UE through PRACH.
  • the UE can gradually increase the transmit power of PRACH according to the power increase step configured in the SIB1 of the base station (for example, it can be recorded as powerRampingStep), that is, after each random access failure, the transmit power of PRACH can be increased by one powerRampingStep and then retried until the UE and the base station successfully access the random access.
  • Step 102 Obtain an RRC establishment message sent by the base station.
  • the UE can send a random access preamble code through the PRACH channel.
  • the base station can allocate uplink resources to the UE.
  • the UE can send an RRC Connection Request message on the Physical Uplink Shared Channel (PUSCH) to establish an RRC connection.
  • the base station After the base station obtains the RRC Connection Request message, it can send an RRC Setup message to the UE, and can configure the transmit power of the PUCCH in the RRCSetup message according to the communication protocol with the UE, so that the UE can determine the transmit power of the PUCCH according to the configuration in the RRC Setup.
  • PUSCH Physical Uplink Shared Channel
  • Step 103 When the power configuration field corresponding to the PUCCH is included in the RRC establishment message, the PRACH transmit power increase amplitude is adjusted according to the PRACH transmit power increase amplitude and/or the value of the power configuration field.
  • the power configuration field corresponding to the PUCCH may refer to the power configuration field pre-set in the communication protocol between the UE and the base station.
  • the base station can determine whether to configure the power configuration field corresponding to the PUCCH in the RRC Setup message, and the specific value of the power configuration field, based on the communication protocol between the base station and the UE and the actual communication quality between the base station and the UE.
  • the value range of the power configuration field can be set in the communication protocol, and the base station can configure the value of the power configuration field within the value range of the power configuration field based on the actual communication quality between the base station and the UE.
  • the value range of the power configuration field may be (-16dB, 15dB).
  • the value range of the power configuration field may be configured according to actual needs and specific application scenarios, and the embodiments of the present application do not limit this.
  • the PRACH transmit power increase amplitude PowerRamp-up is the amplitude by which the transmit power of the PRACH channel is increased according to the actual RSRP level during the random access process, that is, after the transmit power of the PRACH channel is increased PowerRamp-up, the base station can successfully obtain the random access information sent by the UE through the PRACH. Therefore, when performing power control on the PUCCH, the transmit power of the PUCCH can be directly increased using PowerRamp-up, so that the UE can obtain a good communication effect when sending a message to the base station through the PUCCH for the first time, so that the base station can receive the information sent by the UE through the PUCCH.
  • the UE will directly set the PowerRamp-up to 0, so that when the PowerRamp-up is used to control the power of the PUCCH, the transmit power of the PUCCH will drop sharply, thereby reducing the communication quality of the PUCCH.
  • the UE can parse the obtained RRC Setup message to determine whether the RRC Setup message contains the p0-PUCCH-Value field, and when the RRC Setup message contains the configuration information of the p0-PUCCH-Value field, it can determine, based on the values of PowerRamp-up and/or p0-PUCCH-Value, whether setting the PowerRamp-up to 0 will cause a sharp drop in the power of the PUCCH, and determine whether the PowerRamp-up needs to be adjusted based on the judgment result to ensure the communication quality of the PUCCH.
  • P CMX,f,c (i) refers to the maximum transmit power of UE
  • P O_NOMINAL_PUCCH refers to the initial power of PUCCH, which can be configured by the base station in SIB1. If not configured, the value of P O_NOMINAL_PUCCH is 0
  • P O_UE_PUCCH (q u ) refers to the value of the power configuration field (p0-PUCCH-Value field) corresponding to the PUCCH of UE.
  • the value of P O_UE_PUCCH (q u ) is 0; refers to the bandwidth of the PUCCH resource allocation of the UE; PL b,f,c (q d ) refers to the downlink path loss estimate corresponding to the UE, in decibels (dB); ⁇ F_PUCCH (F) refers to the value corresponding to the PUCCH format field, which can be pre-configured.
  • the PUCCH format field may include PUCCH format 0, PUCCH format 1, PUCCH format 2, PUCCH format 3, PUCCH format 4 and other fields.
  • ⁇ F_PUCCH (F) is 0; ⁇ TF,b,f,c (i) is related to the number of symbols corresponding to the PUCCH format and the length of information currently required to be sent in the PUCCH; g b,f,c (0) refers to the power adjustment value corresponding to the PUCCH; ⁇ P rampup,b,f,c refers to the PRACH transmit power increase amplitude PowerRamp-up; ⁇ b,f,c may refer to the power adjustment value corresponding to the PUCCH configured by the base station in the TPC instruction; i refers to the sending time of the PUCCH; qu refers to the index of the selected PO_UE_PUCCH in the p0-Set; q d refers to the resource index of the reference signal (RS) used to calculate PL b,f,c (q d ); l refers to the power adjustment state of the PUCCH; ⁇ refers to the subcarrier spacing
  • the UE may receive a downlink cell-specific reference signal (CRS) sent by the base station, and calculate the downlink path loss estimate PL b,f,c (q d ) in the above formula according to the received CRS.
  • CRS downlink cell-specific reference signal
  • Pt ,CRS is the transmit power of CRS, which is sent by the base station to the UE; Pr ,CRS is the receive power of CRS.
  • the base station when the base station configures the p0-PUCCH-Value field in the RRC Setup message, it can be specifically determined based on the values of PowerRamp-up and p0-PUCCH-Value whether setting the PowerRamp-up to 0 will cause the transmit power of the PUCCH to drop sharply, and then adjust the PowerRamp-up to ensure the communication quality of the PUCCH, avoid uplink data transmission congestion, and improve the communication stability and fluency of the system.
  • the way to adjust PowerRamp-up can be determined according to the value of PowerRamp-up. That is, in a possible implementation of the embodiment of the present application, the above step 103 may include:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the PRACH transmit power increase amplitude PowerRamp-up is less than or equal to the first threshold value, it can be determined that the PowerRamp-up is small, and even if the PowerRamp-up is set to 0, the PUCCH transmit power will not drop sharply, so that when the p0-PUCCH-Value field is configured in the RRC Setup message, the PowerRamp-up can be set to 0; if the PowerRamp-up is greater than the first threshold value, it can be determined that the PowerRamp-up is large. If the PowerRamp-up is set to 0, the PUCCH transmit power will drop sharply, so that the PowerRamp-up can be kept unchanged to prevent the PUCCH transmit power from dropping sharply.
  • the specific value of the first threshold can be determined according to actual needs and specific application scenarios, and the embodiment of the present application does not limit this.
  • the first threshold can be 15dB.
  • the above step 103 may include:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the transmit power of PUCCH can be compensated to a certain extent by the value of p0-PUCCH-Value, so that PUCCH will not drop sharply when PowerRamp-up is set to 0. Therefore, when the value of p0-PUCCH-Value is large, PowerRamp-up can be set to 0.
  • the value of p0-PUCCH-Value is less than or equal to the second threshold, it can be determined that the value of p0-PUCCH-Value is small, that is, PowerRamp-up is set to 0, and after substituting the value of p0-PUCCH-Value into the above formula, not only will the transmit power of PUCCH not be compensated, but the transmit power of PUCCH may also be further reduced, so that PowerRamp-up can be kept unchanged to prevent the transmit power of PUCCH from dropping sharply.
  • the specific value of the second threshold can be set according to actual needs and specific application scenarios, and with reference to the value range of p0-PUCCH-Value configured in the communication protocol, and the embodiment of the present application does not limit this.
  • the second threshold can be 0.
  • the P O_UE_PUCCH (q u ) in formula (2) is modified to the value of the p0-PUCCH-Value, and the ⁇ P rampup,b,f,c in formula (3) is set to 0. Therefore, the change in the transmit power of the PUCCH before and after the configuration of the p0-PUCCH-Value field is related to both the value of the p0-PUCCH-Value and the PowerRamp-up value.
  • the way to adjust the PowerRamp-up can be determined according to the value of the p0-PUCCH-Value and the PowerRamp-up value to further improve the accuracy of the PUCCH power control. That is, in a possible implementation of the embodiment of the present application, the above step 103 may include:
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude remains unchanged.
  • the PRACH transmit power increase amplitude PowerRamp-up is less than or equal to the first threshold and the value of the power configuration field p0-PUCCH-Value is greater than the second threshold, it can be determined that PowerRamp-up is small and the value of p0-PUCCH-Value is large. Therefore, in this case, setting PowerRamp-up to 0 is not likely to cause a sharp drop in the transmit power of PUCCH, and after substituting the value of p0-PUCCH-Value into the above formula, the transmit power of PUCCH can be better compensated by the value of p0-PUCCH-Value. This further reduces the probability of a sharp drop in the transmit power of the PUCCH. Therefore, in this case, the PowerRamp-up may be set to 0.
  • PowerRamp-up is greater than the first threshold or the value of p0-PUCCH-Value is less than or equal to the second threshold, it can be determined that PowerRamp-up is larger, or the value of p0-PUCCH-Value is smaller. That is, in this case, if PowerRamp-up is set to 0, it is likely to cause a sharp drop in the transmit power of PUCCH, and the value of p0-PUCCH-Value cannot effectively compensate for the transmit power of PUCCH, so that PowerRamp-up can be kept unchanged to prevent a sharp drop in the transmit power of PUCCH.
  • the specific values of the first threshold and the second threshold can be set according to actual needs and specific application scenarios, and with reference to the value range of p0-PUCCH-Value configured in the communication protocol, and the embodiments of the present application do not limit this.
  • the value range of p0-PUCCH-Value is (-16dB, 15dB)
  • the first threshold can be 15dB and the second threshold can be 0.
  • P O_UE_PUCCH (q u ) in the above formula is 0, ⁇ P rampup,b,f,c is PowerRamp-up, and the p0-PUCCH-Value field is configured in the RRC Setup message and after PowerRamp-up is set to 0, P O_UE_PUCCH (q u ) in the above formula is the value of p0-PUCCH-Value, ⁇ P rampup,b,f,c is 0, so the change in the PUCCH transmit power before and after the p0-PUCCH-Value field is configured is the difference between PowerRamp-up and p0-PUCCH-Value, so the difference between PowerRamp-up and p0-PUCCH-Value can reflect whether the PUCCH transmit power will drop sharply, so that the method of adjusting PowerRamp-up can be determined according to the difference between PowerRamp-up
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • the difference between the PRACH transmit power increase amplitude PowerRamp-up and the value of the power configuration field p0-PUCCH-Value is less than or equal to the third threshold, it can be determined that the difference between the values of PowerRamp-up and p0-PUCCH-Value is small, so even after the value of p0-PUCCH-Value is configured and PowerRamp-up is set to 0, the transmit power of PUCCH will not fluctuate greatly before and after the configuration, and thus will not drop sharply, so in this case, PowerRamp-up can be set to 0.
  • the difference between the values of PowerRamp-up and p0-PUCCH-Value is greater than the third threshold, it can be determined that the difference between the values of PowerRamp-up and p0-PUCCH-Value is large, so after the value of p0-PUCCH-Value is configured and PowerRamp-up is set to 0, the transmit power of PUCCH will fluctuate greatly before and after the configuration, and thus a sharp drop may occur, so in this case, PowerRamp-up can be kept unchanged.
  • the specific value of the third threshold can be determined according to actual needs and specific application scenarios, and the embodiment of the present application does not limit this.
  • the third threshold can be 5dB.
  • the above step 103 may include:
  • the initial PUCCH message is a feedback message sent by the UE to the base station through the PUCCH and includes a parsing result of the RRC establishment message;
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude remains unchanged.
  • the UE after receiving the RRC Setup message sent by the base station, the UE can parse the RRC Setup message and feed back the parsing result to the base station through PUCCH.
  • the message containing the parsing result of the RRC Setup message is the initial PUCCH message, and the initial PUCCH message carries the parsing result of whether the RRC Setup message is parsed successfully. For example, if the parsing result is a successful parsing, the data carried in the initial PUCCH message can be "ACK"; if the parsing result is a failed parsing, the data carried in the initial PUCCH message can be "NACK".
  • the transmit power of the feedback message i.e., the transmit power of the initial PUCCH message
  • the transmit power can be determined as the initial transmit power
  • the initial transmit power is greater than or equal to the maximum transmit power corresponding to the UE, it means that the signal quality between the current UE and the base station is poor, and the PRACH transmit power increase amplitude PowerRamp-up is large, that is, when determining the initial transmit power of the initial PUCCH, the transmit power of the PUCCH is compensated by PowerRamp-up to a large extent, and the maximum transmit power of the UE has been reached.
  • the initial transmit power corresponding to the initial PUCCH can be directly determined according to the PowerRamp-up determined during the random access process. That is, in a possible implementation of the embodiment of the present application, the above determination of the initial transmit power corresponding to the initial PUCCH message may include:
  • the initial transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula and the PRACH transmit power increase amplitude.
  • the preset PUCCH transmission power calculation formula can be the aforementioned formula (1)(2)(3).
  • the PRACH transmit power increase amplitude PowerRamp-up determined in the random access process can be directly substituted into the preset PUCCH transmit power calculation formula as g b,f,c (0), and P O_UE_PUCCH (q u ) is determined to be 0, and the preset PUCCH transmit power is determined according to other configurations in the communication protocol. Other parameters in the calculation formula are used to determine the initial transmit power corresponding to the initial PUCCH.
  • the adjustment method of PowerRamp-up can be determined by combining these two aspects of data to further improve the accuracy and reliability of PUCCH power control. That is, in a possible implementation of the embodiment of the present application, the above step 103 may include:
  • the initial PUCCH message is a feedback message sent by the UE to the base station through the PUCCH and includes a parsing result of the RRC establishment message;
  • the PRACH transmit power increase amplitude is set to 0;
  • the PRACH transmit power increase amplitude is kept unchanged.
  • PowerRamp-up can be kept unchanged; and when the difference between the PowerRamp-up and the values of the p0-PUCCH-Value field is less than or equal to the third threshold and the initial transmit power is less than the maximum transmit power corresponding to the UE, it can be determined that the PUCCH transmit power will not drop sharply after setting PowerRamp-up to 0, so that PowerRamp-up can be set to 0.
  • any method disclosed in the embodiments of the present application may be used to determine whether it is necessary to adjust the PRACH transmit power increase amplitude, and the embodiments of the present application are not limited to this.
  • Step 104 Determine a target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude.
  • the target power adjustment value may refer to the amplitude of adjusting the transmit power of the PUCCH.
  • the target power adjustment value may be g b,f,c (0) in formula (1).
  • the adjusted PRACH transmit power increase amplitude is 0; if the PRACH transmit power increase amplitude is kept unchanged in step 103, the adjusted PRACH transmit power increase amplitude is still the PRACH transmit power increase amplitude determined during the random access process.
  • the adjusted PRACH transmit power increase amplitude can be directly determined as the target power adjustment value corresponding to the PUCCH.
  • the PUCCH transmit power is determined according to the aforementioned formulas (1), (2), and (3)
  • the adjusted PRACH transmit power increase amplitude can be directly determined as ⁇ P rampup,b,f,c
  • the target power adjustment value g b,f,c (0) ⁇ P rampup,b,f,c is determined.
  • the PRACH transmit power increase range can be kept unchanged. That is, in a possible implementation of the embodiment of the present application, the above step 104 Before, this could include:
  • the PRACH transmit power increase amplitude remains unchanged
  • Step 105 Determine the target transmit power corresponding to the PUCCH according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the preset PUCCH transmission power calculation formula can be the aforementioned formula (1)(2)(3).
  • the value of the power configuration field p0-PUCCH-Value can be used as P O_UE_PUCCH (q u ), and the target power adjustment value determined in the above step can be used as g b,f,c (0), substituted into the preset PUCCH transmit power calculation formula, and other parameters in the preset PUCCH transmit power calculation formula are determined according to the configuration in the communication protocol to determine the target transmit power corresponding to the PUCCH.
  • the UE can send a resource scheduling request (Scheduling request, SR) to the base station in the PUCCH with the target transmit power.
  • SR resource scheduling request
  • the PO_UE_PUCCH (q u ) in the preset PUCCH transmit power calculation formula may be set to 0 to determine the target transmit power corresponding to the PUCCH. That is, in a possible implementation of the embodiment of the present application, the above step 105 may include:
  • the target transmit power corresponding to the PUCCH is determined according to a preset PUCCH transmit power calculation formula and a target power adjustment value.
  • P O_UE_PUCCH (q u ) in the preset PUCCH transmit power calculation formula can be determined as 0, and the target power adjustment value determined in the above steps is used as g b,f,c (0), substituted into the preset PUCCH transmit power calculation formula, and other parameters in the preset PUCCH transmit power calculation formula are determined according to the configuration in the communication protocol to determine the target transmit power corresponding to the PUCCH.
  • the UE can send an SR to the base station in the PUCCH at the target transmit power.
  • the PUCCH transmit power control method obtains the PRACH transmit power increase amplitude when the user terminal UE and the base station successfully perform random access, and when the power configuration field corresponding to the PUCCH is included in the RRC establishment message sent by the base station, the PRACH transmit power increase amplitude is adjusted according to the value of the PRACH transmit power increase amplitude and/or the power configuration field, and then the target power adjustment value corresponding to the PUCCH is determined according to the adjusted PRACH transmit power increase amplitude, and then the target transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the PRACH transmit power increase amplitude is flexibly adjusted according to the PRACH transmit power increase amplitude during the random access process and the actual numerical level of the power configuration field.
  • the PUCCH transmit power will not drop sharply due to the change in the PRACH transmit power increase amplitude, so as to ensure that the information carried by the PUCCH can be successfully sent, thereby avoiding data transmission congestion in the uplink between the base station and the UE and improving the communication stability and fluency of the system.
  • the base station can also send a TPC instruction to the UE based on the signal-to-noise ratio of the received PUCCH signal, so that the UE can further adjust the PUCCH transmission power according to the power adjustment value in the TPC instruction, so as to further improve the accuracy and reliability of PUCCH power control.
  • FIG2 shows a schematic flow chart of another method for controlling the transmission power of a PUCCH provided in an embodiment of the present application.
  • the PUCCH transmission power control method includes the following steps:
  • Step 201 obtaining the PRACH transmission power increase amplitude when the UE and the base station have successfully completed random access.
  • Step 202 Obtain an RRC establishment message sent by the base station.
  • Step 203 When the power configuration field corresponding to the PUCCH is included in the RRC establishment message, the PRACH transmit power increase amplitude is adjusted according to the PRACH transmit power increase amplitude and/or the value of the power configuration field.
  • Step 204 Acquire a TPC instruction sent by the base station, wherein the TPC instruction includes a TPC power adjustment value corresponding to the PUCCH.
  • the UE after the UE determines the adjusted transmit power increase amplitude according to the method of the aforementioned embodiment, it can first determine the transmit power of the PUCCH according to the adjusted transmit power increase amplitude and the value of the power configuration field, and send a message to the base station through the PUCCH with the transmit power.
  • the base station After that, after the base station receives the PUCCH signal sent by the UE, it can determine whether the transmit power of the PUCCH needs to be further adjusted according to the difference between the signal-to-noise ratio of the received PUCCH signal and the set target signal-to-noise ratio; and when it is determined that the transmit power of the PUCCH needs to be further adjusted, the corresponding TPC power adjustment value is set in the TPC instruction and sent to the UE. After obtaining the TPC instruction sent by the base station, the UE can further fine-tune the transmit power of the PUCCH according to the TPC power adjustment value contained in the TPC instruction to further improve the communication quality of the PUCCH.
  • each time the base station obtains a PUCCH signal sent by the UE it can send a TPC instruction to the UE based on the difference between the signal-to-noise ratio of the PUCCH signal and the target signal-to-noise ratio.
  • the base station can determine the TPC adjustment value based on the difference between the signal-to-noise ratio of the initial PUCCH message and the target signal-to-noise ratio, and send the TPC instruction to the UE; or, after receiving the SR message sent by the UE to the base station via the PUCCH, the base station can determine the TPC adjustment value based on the difference between the signal-to-noise ratio of the SR message and the target signal-to-noise ratio, and send the TPC instruction to the UE.
  • the base station determines that the signal-to-noise ratio of the received PUCCH is less than the target signal-to-noise ratio, it can be determined that the current communication quality of the PUCCH is not ideal and the transmit power of the PUCCH needs to be further increased, so that the difference between the target signal-to-noise ratio and the signal-to-noise ratio of the received PUCCH signal (the difference is greater than 0) can be determined as the TPC power adjustment value, so that the UE can further increase the transmit power of the PUCCH according to the TPC power adjustment value; if the base station determines that the signal-to-noise ratio of the received PUCCH is greater than the target signal-to-noise ratio, it can be determined that the current communication quality of the PUCCH is good, and the transmit power of the PUCCH can be appropriately lowered to reduce the power consumption of the UE, so that the difference between the target signal-to-noise ratio and the signal-to-noise
  • Step 205 The sum of the adjusted PRACH transmit power increase amplitude and the TPC power adjustment value is determined as the target power adjustment value.
  • the above formulas (1), (2), and (3) are used as the preset PUCCH transmit power meter.
  • the adjusted PRACH transmit power increase amplitude can be used as ⁇ P rampup,b,f,c and the TPC power adjustment value can be used as ⁇ b,f,c and substituted into formula (3) to determine the target power adjustment value g b,f,c (0). That is, the sum of the adjusted PRACH transmit power increase amplitude and the TPC power adjustment value can be determined as the target power adjustment value.
  • Step 206 Determine the target transmit power corresponding to the PUCCH according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the PUCCH transmit power control method obtaineds the PRACH transmit power increase amplitude when the user terminal UE and the base station successfully perform random access, and when the power configuration field corresponding to the PUCCH is included in the RRC establishment message sent by the base station, the PRACH transmit power increase amplitude is adjusted according to the PRACH transmit power increase amplitude and/or the value of the power configuration field, and then the TPC instruction sent by the base station is obtained, and the sum of the TPC power adjustment value corresponding to the PUCCH included in the TPC instruction and the adjusted PRACH transmit power increase amplitude is determined as the target power adjustment value corresponding to the PUCCH, and then the target transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula, the value of the power configuration field and the target power adjustment value.
  • the PRACH transmit power increase amplitude is flexibly adjusted according to the PRACH transmit power increase amplitude during the random access process and the actual numerical level of the power configuration field.
  • the PUCCH transmit power When the PUCCH transmit power is subsequently determined, the PUCCH transmit power will not drop sharply due to the change in the PRACH transmit power increase amplitude, so as to ensure that the information carried by the PUCCH can be successfully sent, and the PUCCH transmit power is further fine-tuned according to the TPC command sent by the base station, thereby not only further avoiding data transmission congestion in the uplink between the base station and the UE, and further improving the communication stability and fluency of the system; but also further reducing the power consumption of the UE.
  • Figure 3 shows a structural block diagram of the PUCCH transmission power control device provided in the embodiment of the present application. For the sake of convenience of explanation, only the parts related to the embodiment of the present application are shown.
  • the device 30 includes:
  • the first acquisition module 31 is used to obtain the PRACH transmission power increase amplitude when the UE and the base station successfully perform random access;
  • a second acquisition module 32 used to acquire an RRC establishment message sent by the base station
  • a first adjustment module 33 is configured to adjust the PRACH transmit power increase amplitude according to the PRACH transmit power increase amplitude and/or the value of the power configuration field when the RRC establishment message contains the power configuration field corresponding to the PUCCH;
  • a first determination module 34 is used to determine a target power adjustment value corresponding to the PUCCH according to the adjusted PRACH transmit power increase amplitude
  • the second determination module 35 is used to determine the target transmit power corresponding to the PUCCH according to a preset PUCCH transmit power calculation formula, a value of the power configuration field and a target power adjustment value.
  • the PUCCH transmission power control device provided in the embodiment of the present application can be configured in any In the UE, the aforementioned PUCCH transmission power control method is executed.
  • the PRACH transmit power increase amplitude is flexibly adjusted according to the PRACH transmit power increase amplitude during the random access process and the actual numerical level of the power configuration field.
  • the PUCCH transmit power will not drop sharply due to the change in the PRACH transmit power increase amplitude, so as to ensure that the information carried by the PUCCH can be successfully sent, thereby avoiding data transmission congestion in the uplink between the base station and the UE and improving the communication stability and fluency of the system.
  • the first adjustment module 33 includes:
  • a first adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the PRACH transmit power increase amplitude is less than or equal to a first threshold
  • the second adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the PRACH transmit power increase amplitude is greater than the first threshold.
  • the first adjustment module 33 includes:
  • a third adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the value of the power configuration field is greater than the second threshold;
  • the fourth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the value of the power configuration field is less than or equal to the second threshold.
  • the first adjustment module 33 includes:
  • a fifth adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the PRACH transmit power increase amplitude is less than or equal to the first threshold and the value of the power configuration field is greater than the second threshold;
  • the sixth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the PRACH transmit power increase amplitude is greater than the first threshold or the value of the power configuration field is less than or equal to the second threshold.
  • the first adjustment module 33 includes:
  • a first determining unit configured to determine a difference between a PRACH transmit power increase amplitude and a value of a power configuration field
  • a seventh adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the difference is less than or equal to a third threshold
  • the eighth adjustment unit is used to keep the PRACH transmit power increase amplitude unchanged when the difference is greater than the third threshold.
  • the first adjustment module 33 includes:
  • a second determining unit configured to determine an initial transmit power corresponding to an initial PUCCH message, wherein the initial PUCCH message is a feedback message including a parsing result of an RRC establishment message, sent by the UE to the base station through the PUCCH;
  • a ninth adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the initial transmit power is less than the maximum transmit power corresponding to the UE;
  • the tenth adjustment unit is used to maintain PRACH transmission when the initial transmission power is greater than or equal to the maximum transmission power.
  • the power increase range remains unchanged.
  • the second determining unit is specifically configured to:
  • the initial transmit power corresponding to the PUCCH is determined according to the preset PUCCH transmit power calculation formula and the PRACH transmit power increase amplitude.
  • the first adjustment module 33 includes:
  • a first determining unit configured to determine a difference between a PRACH transmit power increase amplitude and a value of a power configuration field
  • An eleventh adjustment unit configured to set the PRACH transmit power increase amplitude to 0 when the difference is less than or equal to a third threshold and the initial transmit power is less than a maximum transmit power corresponding to the UE;
  • the above-mentioned device 30 further includes:
  • the second adjustment module is used to keep the PRACH transmission power increase amplitude unchanged when the power configuration field is not included in the RRC establishment message;
  • the second determining module 35 includes:
  • the third determining unit is used to determine the target transmit power corresponding to the PUCCH according to a preset PUCCH transmit power calculation formula and a target power adjustment value.
  • a third acquisition module is used to acquire a TPC instruction sent by the base station, wherein the TPC instruction includes a TPC power adjustment value corresponding to the PUCCH;
  • the first determining module 34 includes:
  • the fourth determining unit is used to determine the sum of the adjusted PRACH transmit power increase amplitude and the TPC power adjustment value as the target power adjustment value.
  • the technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration.
  • the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.
  • the functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.
  • the present application also proposes a UE.
  • FIG4 is a schematic diagram of the structure of a UE according to an embodiment of the present application.
  • the UE 200 includes:
  • Bus 230 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor or a local bus using any of a variety of bus architectures.
  • bus architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus and Peripheral Component Interconnect (PCI) bus.
  • UE 200 typically includes a variety of electronic device readable media, which may be any available media that can be accessed by UE 200, including volatile and non-volatile media, removable and non-removable media.
  • the memory 210 may also include computer system readable media in the form of volatile memory, such as random access memory (RAM) 240 and/or cache memory 250.
  • UE200 may further include other removable/non-removable, volatile/non-volatile computer system storage media.
  • the storage system 260 may be used to read and write non-removable, non-volatile magnetic media (not shown in FIG. 4 , commonly referred to as a “hard drive”).
  • a disk drive for reading and writing a removable non-volatile disk e.g., a “floppy disk”
  • an optical disk drive for reading and writing a removable non-volatile optical disk e.g., a CD-ROM, DVD-ROM or other optical medium
  • each drive may be connected to the bus 230 via one or more data medium interfaces.
  • the memory 210 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of the various embodiments of the present application.
  • a program/utility 280 having a set (at least one) of program modules 270 may be stored, for example, in the memory 210, such program modules 270 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.
  • the program modules 270 generally perform the functions and/or methods of the embodiments described herein.
  • UE200 can be used in conjunction with UE200, including but not limited to: microcode, device driver, redundant processing unit, external disk drive array, RAID system, tape drive, and data backup storage system, etc.
  • the processor 220 executes various functional applications and data processing by running the programs stored in the memory 210 .
  • An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.
  • An embodiment of the present application provides a computer program product.
  • the computer program product runs on a UE, the UE can implement the steps in the above-mentioned method embodiments when executing the computer program product.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program.
  • the computer program can be stored in a computer-readable storage medium.
  • the computer program is executed by the processor, the steps of the above-mentioned various method embodiments can be implemented.
  • the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form.
  • the computer-readable medium may at least include: any entity or device that can carry the computer program code to the device/UE, a recording medium, a computer memory, a read-only memory (ROM), a random access memory (RAM), an electric carrier signal, a telecommunication signal, and a software distribution medium.
  • a USB flash drive for example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk.
  • computer-readable media cannot be electric carrier signals and telecommunication signals.
  • the disclosed devices/UE and methods can be implemented in other ways.
  • the device/UE embodiments described above are merely schematic.
  • the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

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Abstract

本申请适用于通信技术领域，提供了一种PUCCH的发射功率控制方法、装置及用户终端，该方法包括：获取用户终端与基站在随机接入成功时的PRACH发射功率上调幅度；在基站发送的无线资源控制建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，调整PRACH发射功率上调幅度；根据调整后的PRACH发射功率上调幅度，确定PUCCH的功率调整值；根据预设的PUCCH发射功率计算公式、功率配置字段的取值及功率调整值，确定PUCCH的目标发射功率。由此，通过灵活调整PUCCH的功率调整值，保持PUCCH的发射功率稳定，避免了上行链路的数据传输拥塞。

Description

PUCCH的发射功率控制方法、装置及用户终端
本申请要求于2023年01月13日提交国家知识产权局、申请号为202310081381.X、申请名称为“PUCCH的发射功率控制方法、装置及用户终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请属于通信技术领域，尤其涉及一种PUCCH的发射功率控制方法、装置、用户终端及计算机可读存储介质。
背景技术
当用户终端(User Equipment，UE)与基站建立连接时，若UE与基站之间的距离较近，信号所经历的路径损耗较小，UE以较小的发射功率即可与基站建立通信。相反，若UE与基站的距离较远时，信号所经历的路径损耗较大，UE则需以较大的发射功率才能与基站建立通信。为了补偿不同路径的传输损耗，使得基站维持稳定的接收功率，需要对UE与基站之间的上行控制信道(Physical Uplink Control Channel，PUCCH)进行发射功率控制。
相关技术中，UE和基站通过随机接入建立连接的过程中，如果处于参考信号接收功率(Reference Signal Receiving Power，RSRP)比较差的环境下，UE则需要重试多次随机接入信道(Physical Random Access Channel，PRACH)发送才能接入成功，每次重试时UE会上调发射功率直至随机接入成功，并在之后的PUCCH发射功率计算时，将随机接入过程中的功率上调幅度作为发射功率调整值。但是，如果基站在无线资源控制(Radio Resource Control，RRC)建立消息里配置了PUCCH对应的功率配置字段(如p0-PUCCH-Value)，在随机接入过程中的功率上调幅度则会被重置为0，使得PUCCH的发射功率出现陡降，从而导致PUCCH承载的信息发送失败，进而导致上行链路的数据传输拥塞，使得系统卡顿甚至断链。
发明内容
本申请实施例提供了一种PUCCH的发射功率控制方法、装置、UE及存储介质，可以解决在基站在RRC建立消息里配置了PUCCH对应的功率配置字段时，在随机接入过程中的功率上调幅度则会被重置为0，使得PUCCH的发射功率出现陡降，从而导致PUCCH承载的信息发送失败，进而导致上行链路的数据传输拥塞，使得系统卡顿甚至断链的问题。
第一方面，本申请实施例提供了一种PUCCH的发射功率控制方法，包括：获取UE与基站在随机接入成功时的PRACH发射功率上调幅度；获取基站发送的RRC建立消息；在RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整；根据调整后的PRACH 发射功率上调幅度，确定PUCCH对应的目标功率调整值；根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。
在第一方面一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
若PRACH发射功率上调幅度小于或等于第一阈值，则将PRACH发射功率上调幅度置为0；
若PRACH发射功率上调幅度大于第一阈值，则保持PRACH发射功率上调幅度不变。
可选的，在第一方面另一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
若功率配置字段的取值大于第二阈值，则将PRACH发射功率上调幅度置为0；
若功率配置字段的取值小于或等于第二阈值，则保持PRACH发射功率上调幅度不变。
可选的，在第一方面再一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
若PRACH发射功率上调幅度小于或等于第一阈值且功率配置字段的取值大于第二阈值，则将PRACH发射功率上调幅度置为0；
否则，保持PRACH发射功率上调幅度不变。
可选的，在第一方面又一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
若差值小于或等于第三阈值，则将PRACH发射功率上调幅度置为0；
若差值大于第三阈值，则保持PRACH发射功率上调幅度不变。
可选的，在第一方面又一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
确定初始PUCCH消息对应的初始发射功率，其中，初始PUCCH消息为UE通过PUCCH向基站发送的、包含RRC建立消息的解析结果的反馈消息；
若初始发射功率小于UE对应的最大发射功率，则将PRACH发射功率上调幅度置为0；
若初始发射功率大于或等于最大发射功率，则保持PRACH发射功率上调幅度不变。
可选的，在第一方面又一种可能的实现方式中，上述确定初始PUCCH消息对应的初始发射功率，包括：
根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率。
可选的，在第一方面另一种可能的实现方式中，上述根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，包括：
确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率；
若差值小于或等于第三阈值且初始发射功率小于UE对应的最大发射功率，则将PRACH发射功率上调幅度置为0；
若差值大于第三阈值或者初始发射功率大于或等于最大发射功率，则保持PRACH发射功率上调幅度不变。
可选的，在第一方面再一种可能的实现方式中，上述根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值之前，还包括：
在RRC建立消息中未包含功率配置字段时，保持PRACH发射功率上调幅度不变；
相应的，上述根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率，包括：
根据预设的PUCCH发射功率计算公式及目标功率调整值，确定PUCCH对应的目标发射功率。
可选的，在第一方面又一种可能的实现方式中，上述根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值之前，还包括：
获取基站发送的传输功率控制(Transmit Power Control，TPC)指令，其中，TPC指令中包括PUCCH对应的TPC功率调整值；
相应的，上述根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值，包括：
将调整后的PRACH发射功率上调幅度与TPC功率调整值之和，确定为目标功率调整值。
第二方面，本申请实施例提供了一种PUCCH的发射功率控制装置，包括：第一获取模块，用于获取UE与基站在随机接入成功时的PRACH发射功率上调幅度；第二获取模块，用于获取基站发送的RRC建立消息；第一调整模块，用于在RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整；第一确定模块，用于根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值；第二确定模块，用于根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。
在第二方面一种可能的实现方式中，上述第一调整模块，包括：
第一调整单元，用于在PRACH发射功率上调幅度小于或等于第一阈值时，将PRACH发射功率上调幅度置为0；
第二调整单元，用于在PRACH发射功率上调幅度大于第一阈值时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面另一种可能的实现方式中，上述第一调整模块，包括：
第三调整单元，用于在功率配置字段的取值大于第二阈值时，将PRACH发射功率上调幅度置为0；
第四调整单元，用于在功率配置字段的取值小于或等于第二阈值时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面再一种可能的实现方式中，上述第一调整模块，包括：
第五调整单元，用于在PRACH发射功率上调幅度小于或等于第一阈值且功率配置字段的取值大于第二阈值时，将PRACH发射功率上调幅度置为0；
第六调整单元，用于在PRACH发射功率上调幅度大于第一阈值、或者功率配置字段 的取值小于或等于第二阈值时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面又一种可能的实现方式中，上述第一调整模块，包括：
第一确定单元，用于确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
第七调整单元，用于在差值小于或等于第三阈值时，将PRACH发射功率上调幅度置为0；
第八调整单元，用于在差值大于第三阈值时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面又一种可能的实现方式中，上述第一调整模块，包括：
第二确定单元，用于确定初始PUCCH消息对应的初始发射功率，其中，初始PUCCH消息为UE通过PUCCH向基站发送的、包含RRC建立消息的解析结果的反馈消息；
第九调整单元，用于在初始发射功率小于UE对应的最大发射功率时，将PRACH发射功率上调幅度置为0；
第十调整单元，用于在初始发射功率大于或等于最大发射功率时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面又一种可能的实现方式中，上述第二确定单元，具体用于：
根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率。
可选的，在第二方面另一种可能的实现方式中，上述第一调整模块，包括：
第一确定单元，用于确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
第二确定单元，用于根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率；
第十一调整单元，用于在差值小于或等于第三阈值且初始发射功率小于UE对应的最大发射功率时，将PRACH发射功率上调幅度置为0；
第十二调整单元，用于在差值大于第三阈值或者初始发射功率大于或等于最大发射功率时，保持PRACH发射功率上调幅度不变。
可选的，在第二方面再一种可能的实现方式中，上述装置，还包括：
第二调整模块，用于在RRC建立消息中未包含功率配置字段时，保持PRACH发射功率上调幅度不变；
相应的，上述第二确定模块，包括：
第三确定单元，用于根据预设的PUCCH发射功率计算公式及目标功率调整值，确定PUCCH对应的目标发射功率。
可选的，在第二方面又一种可能的实现方式中，上述装置，还包括：
第三获取模块，用于获取基站发送的TPC指令，其中，TPC指令中包括PUCCH对应的TPC功率调整值；
相应的，上述第一确定模块，包括：
第四确定单元，用于将调整后的PRACH发射功率上调幅度与TPC功率调整值之和，确定为目标功率调整值。
第三方面，本申请实施例提供了一种UE，包括：存储器、处理器以及存储在存储器 中并可在处理器上运行的计算机程序，其中，处理器执行计算机程序时实现如前所述的PUCCH的发射功率控制方法。
第四方面，本申请实施例提供了一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如前所述的PUCCH的发射功率控制方法。
第五方面，本申请实施例提供了一种计算机程序产品，当计算机程序产品在UE上运行时，使得UE执行如前所述的PUCCH的发射功率控制方法。
本申请实施例与现有技术相比存在的有益效果是：通过在基站在RRC建立消息中对PUCCH对应的功率配置字段进行了配置时，根据随机接入过程中PRACH发射功率上调幅度与功率配置字段的实际数值水平，灵活调整PRACH发射功率上调幅度，使得在后续确定PUCCH的发射功率时，PUCCH的发射功率不会因为PRACH发射功率上调幅度的变化产生陡降，以保证PUCCH承载的信息可以成功发送，从而避免了基站与UE之间上行链路的数据传输拥塞，提升了系统的通信稳定性和流畅度。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例提供的PUCCH的发射功率控制方法的流程示意图；
图2是本申请另一实施例提供的PUCCH的发射功率控制方法的流程示意图；
图3是本申请实施例提供的PUCCH的发射功率控制装置的结构示意图；
图4是本申请实施例提供的UE的结构示意图。
具体实施方式
以下描述中，为了说明而不是为了限定，提出了诸如特定系统结构、技术之类的具体细节，以便透彻理解本申请实施例。然而，本领域的技术人员应当清楚，在没有这些具体细节的其它实施例中也可以实现本申请。在其它情况中，省略对众所周知的系统、装置、电路以及方法的详细说明，以免不必要的细节妨碍本申请的描述。
应当理解，当在本申请说明书和所附权利要求书中使用时，术语“包括”指示所描述特征、整体、步骤、操作、元素和/或组件的存在，但并不排除一个或多个其它特征、整体、步骤、操作、元素、组件和/或其集合的存在或添加。
还应当理解，在本申请说明书和所附权利要求书中使用的术语“和/或”是指相关联列出的项中的一个或多个的任何组合以及所有可能组合，并且包括这些组合。
如在本申请说明书和所附权利要求书中所使用的那样，术语“如果”可以依据上下文被解释为“当...时”或“一旦”或“响应于确定”或“响应于检测到”。类似地，短语“如果确定”或“如果检测到[所描述条件或事件]”可以依据上下文被解释为意指“一旦确定”或“响应于确定”或“一旦检测到[所描述条件或事件]”或“响应于检测到[所描述条件或事件]”。
另外，在本申请说明书和所附权利要求书的描述中，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本申请说明书中描述的参考“一个实施例”或“一些实施例”等意味着在本申请的一个或多个实施例中包括结合该实施例描述的特定特征、结构或特点。由此，在本说明书中的不同之处出现的语句“在一个实施例中”、“在一些实施例中”、“在其他一些实施例中”、“在另外一些实施例中”等不是必然都参考相同的实施例，而是意味着“一个或多个但不是所有的实施例”，除非是以其他方式另外特别强调。术语“包括”、“包含”、“具有”及它们的变形都意味着“包括但不限于”，除非是以其他方式另外特别强调。
下面参考附图对本申请提供的PUCCH的发射功率控制方法、装置、UE、存储介质及计算机程序进行详细描述。
图1示出了本申请实施例提供的一种PUCCH的发射功率控制方法的流程示意图。
步骤101，获取UE与基站在随机接入成功时的PRACH发射功率上调幅度。
需要说明的是，本申请实施例的PUCCH的发射功率控制方法可以由本申请实施例的PUCCH的发射功率控制装置执行。本申请实施例的PUCCH的发射功率控制装置可以配置在任意UE中，以执行本申请实施例的PUCCH的发射功率控制方法。比如，本申请实施例的PUCCH的发射功率控制装置可以配置在可以配置在手机、电脑、可穿戴式设备等UE中，以实现UE与基站通信过程中的PUCCH的发射功率控制。
其中，PRACH发射功率上调幅度，可以是指UE与基站在随机接入过程中PRACH的发射功率的总调整量。
在本申请实施例中，UE在与基站进行随机接入的过程中，会根据当前环境的RSRP不断调整PRACH的发射功率，直至随机接入成功。在当前环境的RSRP比较差时，UE可以不断抬升PRACH的发射功率，以使基站可以成功接收UE通过PRACH发送的消息。在每次随机接入时，UE可以根据基站SIB1中配置的功率上调步长(比如可以记为powerRampingStep)逐渐上调PRACH的发射功率，即可以在每次随机接入失败后，将PRACH的发射功率上调一个powerRampingStep后重试，直至UE与基站随机接入成功。在UE与基站随机接入成功后，可以根据UE重试的次数与powerRampingStep，确定PRACH发射功率上调幅度(比如可以记为PowerRamp-up)，即PowerRamp-up＝N×powerRampingStep，其中，N为UE在随机接入过程中PRACH的重试次数。
步骤102，获取基站发送的RRC建立消息。
在本申请实施例中，UE可以通过PRACH信道进行随机接入前导码的发送，基站在收到随机接入前导码后，可以给UE分配上行资源，之后UE可以在物理上行共享信道(Physical Uplink Shared Channel，PUSCH)发送RRC连接请求(RRC Connection Request)消息，以进行RRC连接的建立，基站获取到RRC Connection Request消息之后，可以向UE发送RRC建立(Setup)消息，并可以根据与UE之间的通信协议在RRCSetup消息中对PUCCH的发射功率进行配置，以使UE可以根据RRC Setup中的配置确定PUCCH的发射功率。
步骤103，在RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整。
其中，PUCCH对应的功率配置字段，可以是指在UE与基站之间的通信协议中预先 设定的对PUCCH的功率调整值进行配置的字段。
需要说明的是，基站可以根据与UE之间的通信协议以及与UE之间的实际通信质量，确定是否在RRC Setup消息中配置PUCCH对应的功率配置字段，以及功率配置字段的具体取值。并且，功率配置字段的取值范围可以是在通信协议中设定的，基站可以根据与UE之间的实际通信质量，在功率配置字段的取值范围内配置功率配置字段的取值。
举例来说，功率配置字段的取值范围可以为(-16dB,15dB)。实际使用时，功率配置字段的取值范围可以是根据实际需要及具体的应用场景配置的，本申请实施例对此不做限定。
在本申请实施例中，由于PRACH发射功率上调幅度PowerRamp-up是在随机接入过程中根据实际的RSRP水平对PRACH信道的发射功率进行抬升的幅度，即将PRACH信道的发射功率抬升PowerRamp-up之后，可以使得基站成功获取到UE通过PRACH发送的随机接入信息。因此，在对PUCCH进行功率控制时，可以直接利用PowerRamp-up对PUCCH的发射功率进行抬升，以使UE在第一次通过PUCCH向基站发送消息时就可以获得良好的通信效果，使得基站可以接收到UE通过PUCCH发送的信息。但是，如果基站在RRC Setup消息中配置了PUCCH对应的功率配置字段(可以记为p0-PUCCH-Value)，则UE会直接将PowerRamp-up置为0，从而使得在使用PowerRamp-up对PUCCH进行功率控制时，会导致PUCCH的发射功率发生陡降，从而降低了PUCCH的通信质量。
因此，UE在获取到基站发送的RRC Setup消息之后，可以对获取到的RRC Setup消息进行解析处理，以确定RRC Setup消息中是否包含p0-PUCCH-Value字段，并在RRC Setup消息中包含p0-PUCCH-Value字段的配置信息时，可以根据PowerRamp-up和/或p0-PUCCH-Value的取值，判断将PowerRamp-up置为0之后，是否会导致PUCCH的功率发生陡降，并根据判断结果确定是否需要对PowerRamp-up进行调整，以保证PUCCH的通信质量。
作为一种可能的实现方式，在对PUCCH进行功率控制时，可以通过以下公式确定PUCCH对应的发射功率：

PO_PUCCH,b,f,c(qu)＝PO_NOMINAL_PUCCH+PO_UE_PUCCH(qu)   (2)
gb,f,c(0)＝ΔPrampup,b,f,c+δb,f,c   (3)
其中，PCMX,f,c(i)是指UE的最大发射功率；PO_NOMINAL_PUCCH是指PUCCH的初始功率，可以是基站在SIB1中配置的，如果未配置，则PO_NOMINAL_PUCCH的取值为0；PO_UE_PUCCH(qu)是指UE的PUCCH对应的功率配置字段(p0-PUCCH-Value字段)的取值，如果RRC Setup消息中未配置功率配置字段，则PO_UE_PUCCH(qu)的取值为0；是指UE的PUCCH资源分配的带宽；PLb,f,c(qd)是指UE对应的下行链路路径损耗估计，单位为分贝(dB)；ΔF_PUCCH(F)是指PUCCH格式字段对应的取值，可以是预先配置的，PUCCH格式字段可以包括PUCCH format 0、PUCCH format 1、PUCCH format 2、PUCCH format 3、PUCCH format 4等字段，如果未配置PUCCH格式字段，则ΔF_PUCCH(F)的取值 为0；ΔTF,b,f,c(i)与PUCCH format对应的符号个数及PUCCH中当前需要发送的信息长度有关；gb,f,c(0)是指PUCCH对应的功率调整值；ΔPrampup,b,f,c是指PRACH发射功率上调幅度PowerRamp-up；δb,f,c可以是指基站在TPC指令中配置的PUCCH对应的功率调整值；i是指PUCCH的发送时刻；qu是指选用的PO_UE_PUCCH在p0-Set中的索引；qd是指用于计算PLb,f,c(qd)的参考信号(Reference Signal，RS)的资源索引；l是指PUCCH的功率调整状态；μ是指PUCCH的子载波间隔(Subcarrier Spacing，SCS)配置。
需要说明的是，UE可以在随机接入之前，接收基站发送的下行小区特定参考信号(Cell Reference Signal，CRS)，并根据接收到的CRS计算得出上述公式中的下行链路路径损耗估计PLb,f,c(qd)。PLb,f,c(qd)的计算公式如下：
PLb,f,c(qd)＝Pt,CRS-Pr,CRS
其中，Pt,CRS为CRS的发射功率，由基站下发给UE；Pr,CRS为CRS的接收功率。
需要说明的时，本申请实施例的方案仅关注上述公式中PO_UE_PUCCH(qu)、gb,f,c(0)、ΔPrampup,b,f,c这几个参数的确定方式，关于公式中的其他参数可以根据通信协议中的配置进行确定。
需要说明的是，通过上述公式可以看出，在基站在RRC Setup消息中配置了p0-PUCCH-Value字段时，如果直接将PowerRamp-up置为0，会导致通过上述公式确定的PUCCH的发射功率产生变化，尤其是在PowerRamp-up较大时，会导致PUCCH的发射功率发生陡降，从而影响PUCCH的通信质量，使得上行链路的数据传输拥塞。因此，在本申请实施例中，在基站在RRC Setup消息中配置了p0-PUCCH-Value字段时，可以根据PowerRamp-up与p0-PUCCH-Value的取值，具体判断将PowerRamp-up置为0之后是否会导致PUCCH的发射功率发生陡降，再对PowerRamp-up进行调整，以保证PUCCH的通信质量，避免上行链路的数据传输拥塞，提升系统的通信稳定性和流畅度。
作为一种可能的实现方式，由于在PowerRamp-up较大时，将PowerRamp-up置为0更加容易使得PUCCH的发射功率发生陡降，因此，可以根据PowerRamp-up的取值，确定对PowerRamp-up进行调整的方式。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
若PRACH发射功率上调幅度小于或等于第一阈值，则将PRACH发射功率上调幅度置为0；
若PRACH发射功率上调幅度大于第一阈值，则保持PRACH发射功率上调幅度不变。
在本申请实施例中，若PRACH发射功率上调幅度PowerRamp-up小于或等于第一阈值，则可以确定PowerRamp-up较小，即使将PowerRamp-up置为0也不会导致PUCCH的发射功率发生陡降，从而可以在RRC Setup消息中配置了p0-PUCCH-Value字段时，将PowerRamp-up置为0；若PowerRamp-up大于第一阈值，则可以确定PowerRamp-up较大，如果将PowerRamp-up置为0会导致PUCCH的发射功率发生陡降，从而可以保持PowerRamp-up不变，以防止PUCCH的发射功率发生陡降。
需要说明的是，实际使用时，可以根据实际需要及具体的应用场景确定第一阈值的具体取值，本申请实施例对此不做限定。比如，第一阈值可以为15dB。
作为一种可能的实现方式，通过上述公式可知，在RRC Setup消息中配置了p0-PUCCH-Value字段时，PO_UE_PUCCH(qu)的取值会由0变为p0-PUCCH-Value的取值，因此p0-PUCCH-Value的取值越大，在将PowerRamp-up置为0之后PUCCH的发射功率发生陡降的概率就越低，因此还可以根据p0-PUCCH-Value的取值，确定对PowerRamp-up进行调整的方式。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
若功率配置字段的取值大于第二阈值，则将PRACH发射功率上调幅度置为0；
若功率配置字段的取值小于或等于第二阈值，则保持PRACH发射功率上调幅度不变。
在本申请实施例中，若功率配置字段p0-PUCCH-Value的取值大于第二阈值，则可以确定p0-PUCCH-Value的取值较大，即即使将PRACH发射功率上调幅度PowerRamp-up置为0之后，也可以通过p0-PUCCH-Value的取值对PUCCH的发射功率进行一定程度的补偿，从而使得PUCCH在PowerRamp-up置为0也不会发生陡降，因此可以在p0-PUCCH-Value的取值较大时，将PowerRamp-up置为0。若p0-PUCCH-Value的取值小于或等于第二阈值，则可以确定p0-PUCCH-Value的取值较小，即将PowerRamp-up置为0，并将p0-PUCCH-Value的取值代入上述公式之后，不仅不会对PUCCH的发射功率进行补偿，还有可能进一步降低PUCCH的发射功率，从而可以保持PowerRamp-up不变，以防止PUCCH的发射功率发生陡降。
需要说明的是，实际使用时，可以根据实际需要及具体的应用场景，并参考通信协议中配置的p0-PUCCH-Value的取值范围，设定第二阈值的具体取值，本申请实施例对此不做限定。比如，第二阈值可以为0。
作为一种可能的实现方式，由于在RRC Setup消息中配置了p0-PUCCH-Value字段时，在根据上述公式计算PUCCH的发射功率时，会将公式(2)中的PO_UE_PUCCH(qu)修改为p0-PUCCH-Value的取值，并将公式(3)中的ΔPrampup,b,f,c置为0，因此，PUCCH的发射功率在配置p0-PUCCH-Value字段前后的变化量与p0-PUCCH-Value的取值及PowerRamp-up两个值均有关，因此，可以根据p0-PUCCH-Value的取值及PowerRamp-up两个值，确定对PowerRamp-up进行调整的方式，以进一步提升PUCCH功率控制的准确性。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
若PRACH发射功率上调幅度小于或等于第一阈值且功率配置字段的取值大于第二阈值，则将PRACH发射功率上调幅度置为0；
否则，保持PRACH发射功率上调幅度不变。
在本申请实施例中，若PRACH发射功率上调幅度PowerRamp-up小于或等于第一阈值且功率配置字段p0-PUCCH-Value的取值大于第二阈值，则可以确定PowerRamp-up较小，并且p0-PUCCH-Value的取值较大，因此，在这种情况下，将PowerRamp-up置为0之后也不容易导致PUCCH的发射功率发生陡降，并且将p0-PUCCH-Value的取值代入上述公式之后，可以通过p0-PUCCH-Value的取值对PUCCH的发射功率进行较好的补偿， 从而使得PUCCH的发射功率发生陡降的概率进一步降低。因此，在这种情况下可以将PowerRamp-up置为0。
相应的，若PowerRamp-up大于第一阈值或者p0-PUCCH-Value的取值小于或等于第二阈值，则可以确定PowerRamp-up较大，或者p0-PUCCH-Value的取值较小，即在这种情况下，如果将PowerRamp-up置为0，很可能导致PUCCH的发射功率发生陡降，并且p0-PUCCH-Value的取值也无法对PUCCH的发射功率进行有效补偿，从而可以保持PowerRamp-up不变，以防止PUCCH的发射功率发生陡降。
需要说明的是，实际使用时，可以根据实际需要及具体的应用场景，并参考通信协议中配置的p0-PUCCH-Value的取值范围，设定第一阈值与第二阈值的具体取值，本申请实施例对此不做限定。比如，在p0-PUCCH-Value的取值范围为(-16dB,15dB)时，第一阈值可以15dB，第二阈值可以为0。
作为一种可能的实现方式，由于在RRC Setup消息中未配置p0-PUCCH-Value字段时，上述公式中的PO_UE_PUCCH(qu)为0，ΔPrampup,b,f,c为PowerRamp-up，而在RRC Setup消息中配置了p0-PUCCH-Value字段，且将PowerRamp-up置0之后，上述公式中的PO_UE_PUCCH(qu)为p0-PUCCH-Value的取值，ΔPrampup,b,f,c为0，因此PUCCH的发射功率在p0-PUCCH-Value字段配置前后的变化量为PowerRamp-up与p0-PUCCH-Value之间的差值，因此PowerRamp-up与p0-PUCCH-Value之间的差值可以反应PUCCH的发射功率是否会发生陡降，从而可以根据PowerRamp-up与p0-PUCCH-Value之间的差值，确定对PowerRamp-up进行调整的方式，以进一步提升PUCCH功率控制的准确性。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
若差值小于或等于第三阈值，则将PRACH发射功率上调幅度置为0；
若差值大于第三阈值，则保持PRACH发射功率上调幅度不变。
在本申请实施例中，如果确定PRACH发射功率上调幅度PowerRamp-up与功率配置字段p0-PUCCH-Value的取值之间的差值小于或等于第三阈值，则可以确定PowerRamp-up与p0-PUCCH-Value的取值之间的差值较小，因此即使在配置了p0-PUCCH-Value的取值，并将PowerRamp-up置为0之后，PUCCH的发射功率在配置前后也不会产生较大波动，从而不会发生陡降，因此在这种情况下，可以将PowerRamp-up置为0。如果PowerRamp-up与p0-PUCCH-Value的取值之间的差值大于第三阈值，则可以确定PowerRamp-up与p0-PUCCH-Value的取值之间的差值较大，因此在配置了p0-PUCCH-Value的取值并将PowerRamp-up置为0之后，会导致PUCCH的发射功率在配置前后产生较大波动，从而可能发生陡降，因此在这种情况下，可以保持PowerRamp-up不变。
需要说明的是，实际使用时，可以根据实际需要及具体的应用场景，确定第三阈值的具体取值，本申请实施例对此不做限定。比如，第三阈值可以为5dB。
作为一种可能的实现方式，如果在配置p0-PUCCH-Value字段之前，根据PowerRamp-up确定的PUCCH的发射功率很大，则说明需要对PUCCH的发射功率抬升较 大的幅度，才能保证PUCCH的正常通信，此时如果还将PowerRamp-up置为0，则会导致PUCCH的发射功率陡降，影响PUCCH的通信质量。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
确定初始PUCCH消息对应的初始发射功率，其中，初始PUCCH消息为UE通过PUCCH向基站发送的、包含RRC建立消息的解析结果的反馈消息；
若初始发射功率小于UE对应的最大发射功率，则将PRACH发射功率上调幅度置为0；
若初始发射功率大于或等于最大发射功率，则保持PRACH发射功率上调幅度不变。
在本申请实施例中，UE在接收到基站发送的RRC Setup消息之后，可以对RRC Setup消息进行解析处理，并将解析结果通过PUCCH反馈至基站，该包含RRC Setup消息解析结果的消息即为初始PUCCH消息，该初始PUCCH消息中承载了RRC Setup消息是否解析成功的解析结果。比如，如果解析结果为解析成功，则初始PUCCH消息中承载的数据可以为“ACK”；如果解析结果为解析失败，则初始PUCCH消息中承载的数据可以为“NACK”。因此，在UE对RRC Setup消息解析完成并通过PUCCH反馈解析结果之后，可以获取该条反馈消息的发射功率(即初始PUCCH消息的发射功率)，并将该发射功率确定为初始发射功率。
在本申请实施例一种可能的实现方式中，如果确定初始发射功率大于或等于UE对应的最大发射功率，则说明当前UE与基站之间的信号质量较差，PRACH发射功率上调幅度PowerRamp-up较大，即在确定初始PUCCH的初始发射功率时，通过PowerRamp-up对PUCCH的发射功率进行了较大的补偿，已达到了UE的最大发射功率，因此在这种情况下，将PowerRamp-up置0不仅会导致PUCCH的发射功率陡降，而且会严重影响上行链路的通信质量，从而可以在初始发射功率大于或等于最大发射功率时，保持PowerRamp-up不变。如果初始发射功率小于UE对应的最大发射功率，则可以说明当前UE与基站之间的信号质量较好，PowerRamp-up也没有过大，因此即使将PowerRamp-up置为0可能也不会导致PUCCH的发射功率陡降，从而在这种情况下，可以将PowerRamp-up置为0。
进一步的，由于在发送初始PUCCH消息时，还未根据RRC Setup消息中对p0-PUCCH-Value字段的配置情况对PowerRamp-up进行调整，因此可以根据随机接入过程中确定的PowerRamp-up直接确定初始PUCCH对应的初始发射功率。即在本申请实施例一种可能的实现方式中，上述确定初始PUCCH消息对应的初始发射功率，可以包括：
根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率。
其中，预设的PUCCH发射功率计算公式，可以是前述的公式(1)(2)(3)。
在本申请实施例中，由于初始PUCCH消息是用于反馈UE对RRC Setup消息的解析结果的，此时还未判断RRC Setup消息中是否包含p0-PUCCH-Value字段，以及还未对PowerRamp-up进行调整，因此，可以直接将在随机接入过程中确定的PRACH发射功率上调幅度PowerRamp-up作为gb,f,c(0)代入预设的PUCCH发射功率计算公式，并将PO_UE_PUCCH(qu)确定为0，并根据通信协议中的其他配置确定出预设的PUCCH发射功率 计算公式中的其他参数，以确定出初始PUCCH对应的初始发射功率。
作为一种可能的实现方式，由于PowerRamp-up与p0-PUCCH-Value的取值之间的差值越大，或者PUCCH的初始发射功率越大，将PowerRamp-up置为0之后都会导致PUCCH的发射功率陡降，因此，可以结合这两个方面的数据确定对PowerRamp-up的调整方式，以进一步提升PUCCH功率控制的准确性和可靠性。即在本申请实施例一种可能的实现方式中，上述步骤103，可以包括：
确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
确定初始PUCCH消息对应的初始发射功率，其中，初始PUCCH消息为UE通过PUCCH向基站发送的、包含RRC建立消息的解析结果的反馈消息；
若差值小于或等于第三阈值且初始发射功率小于UE对应的最大发射功率，则将PRACH发射功率上调幅度置为0；
若差值大于第三阈值或者初始发射功率大于或等于最大发射功率，则保持PRACH发射功率上调幅度不变。
在本申请实施例中，由于PRACH发射功率上调幅度PowerRamp-up与功率配置字段p0-PUCCH-Value的取值之间的差值大于第三阈值，或者初始发射功率大于或等于最大发射功率时，将PowerRamp-up置为0之后都会导致PUCCH的发射功率陡降，因此在这两种情况下，都可以保持将PowerRamp-up不变；并且，在PowerRamp-up与p0-PUCCH-Value字段的取值之间的差值小于或等于第三阈值且初始发射功率小于UE对应的最大发射功率时，可以确定将PowerRamp-up置为0之后PUCCH的发射功率不会发生陡降，从而可以将PowerRamp-up置为0。
需要说明的是，实际使用时，可以采用本申请实施例公开的任意一种方式，确定是否需要对PRACH发射功率上调幅度进行调整，本申请实施例对此不做限定。
步骤104，根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值。
其中，目标功率调整值，可以是指对PUCCH的发射功率进行调整的幅度。比如，在根据前述的公式(1)(2)(3)确定PUCCH的发射功率时，目标功率调整值可以为公式(1)中的gb,f,c(0)。
需要说明的是，若在步骤103中将PRACH发射功率上调幅度置为0，则调整后的PRACH发射功率上调幅度为0；若在步骤103中保持PRACH发射功率上调幅度不变，则调整后的PRACH发射功率上调幅度依然为在随机接入过程中确定的PRACH发射功率上调幅度。
作为一种可能的实现方式，在未获取到基站发送的TPC指令时，可以直接将调整后的PRACH发射功率上调幅度，确定为PUCCH对应的目标功率调整值。比如，在根据前述的公式(1)(2)(3)确定PUCCH的发射功率时，可以直接将调整后的PRACH发射功率上调幅度确定为ΔPrampup,b,f,c，并确定目标功率调整值gb,f,c(0)＝ΔPrampup,b,f,c。
进一步的，在RRC Setup消息中未配置PUCCH对应的功率配置字段时，可以保持PRACH发射功率上调幅度不变。即在本申请实施例一种可能的实现方式中，上述步骤104 之前，可以包括：
在RRC建立消息中未包含功率配置字段时，保持PRACH发射功率上调幅度不变；
步骤105，根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。
其中，预设的PUCCH发射功率计算公式，可以是前述的公式(1)(2)(3)。
在本申请实施例中，可以将功率配置字段p0-PUCCH-Value的取值作为PO_UE_PUCCH(qu)，以及将前述步骤中确定出的目标功率调整值作为gb,f,c(0)，代入预设的PUCCH发射功率计算公式，并根据通信协议中的配置确定预设的PUCCH发射功率计算公式中的其他参数，以确定PUCCH对应的目标发射功率。之后，UE可以以目标发射功率在PUCCH中向基站发送资源调度请求(Scheduling request，SR)。
进一步的，在RRC Setup消息中未配置PUCCH对应的功率配置字段时，可以将预设的PUCCH发射功率计算公式中的PO_UE_PUCCH(qu)设置为0，以确定PUCCH对应的目标发射功率。即在本申请实施例一种可能的实现方式中，上述步骤105，可以包括：
在RRC建立消息中未包含所述功率配置字段时，根据预设的PUCCH发射功率计算公式及目标功率调整值，确定PUCCH对应的目标发射功率。
在本申请实施例中，在RRC建立消息中未包含功率配置字段时，可以将预设的PUCCH发射功率计算公式中的PO_UE_PUCCH(qu)确定为0，以及将前述步骤中确定出的目标功率调整值作为gb,f,c(0)，代入预设的PUCCH发射功率计算公式，并根据通信协议中的配置确定预设的PUCCH发射功率计算公式中的其他参数，以确定PUCCH对应的目标发射功率。之后，UE可以以目标发射功率在PUCCH中向基站发送SR。
本申请实施例提供的PUCCH的发射功率控制方法，通过获取用户终端UE与基站在随机接入成功时的PRACH发射功率上调幅度，并在基站发送的RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，之后根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值，进而根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。由此，通过在基站在RRC建立消息中对PUCCH对应的功率配置字段进行了配置时，根据随机接入过程中PRACH发射功率上调幅度与功率配置字段的实际数值水平，灵活调整PRACH发射功率上调幅度，使得在后续确定PUCCH的发射功率时，PUCCH的发射功率不会因为PRACH发射功率上调幅度的变化产生陡降，以保证PUCCH承载的信息可以成功发送，从而避免了基站与UE之间上行链路的数据传输拥塞，提升了系统的通信稳定性和流畅度。
在本申请一种可能的实现形式中，基站在获取到基站发送的PUCCH信号后，还可以根据接收的PUCCH信号的信噪比，向UE发送TPC指令，以使UE根据TPC指令中的功率调整值对PUCCH的发射功率进行进一步调整，以进一步提升PUCCH功率控制的准确性和可靠性。
下面结合图2，对本申请实施例提供的PUCCH的发射功率控制方法进行进一步说明。
图2示出了本申请实施例提供的另一种PUCCH的发射功率控制方法的流程示意图。
如图2所示，该PUCCH的发射功率控制方法，包括以下步骤：
步骤201，获取UE与基站在随机接入成功时的PRACH发射功率上调幅度。
步骤202，获取基站发送的RRC建立消息。
步骤203，在RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整。
上述步骤201-203的具体实现过程及原理，可以参照上述实施例的详细描述，此处不再赘述。
步骤204，获取基站发送的TPC指令，其中，TPC指令中包括PUCCH对应的TPC功率调整值。
在本申请实施例中，UE根据前述实施例的方式确定出调整后的发射功率上调幅度之后，可以首先根据调整后的发射功率上调幅度及功率配置字段的取值，确定出PUCCH的发射功率，并以该发射功率通过PUCCH向基站发送消息，之后基站接收到UE发送的PUCCH信号之后，可以根据接收到的PUCCH信号的信噪比与设定的目标信噪比之间的差异，确定是否需要对PUCCH的发射功率进行进一步调整；并在确定需要对PUCCH的发射功率进行进一步调整时，在TPC指令中设定对应的TPC功率调整值并发送至UE。UE在获取到基站发送的TPC指令之后，可以根据TPC指令中包含的TPC功率调整值，对PUCCH的发射功率进行进一步的精调，以进一步提升PUCCH的通信质量。
需要说明的是，基站可以每获取到一条UE发送的PUCCH信号，就根据该PUCCH信号的信噪比与目标信噪比的差异，向UE发送TPC指令。举例来说，基站可以在接收到UE发送的初始PUCCH消息(承载对RRC Setup的解析结果的消息)之后，根据初始PUCCH消息的信噪比与目标信噪比之间的差异，确定TPC调整值，并将TPC指令发送至UE；或者，基站也可以在接收到UE通过PUCCH向基站发送的SR消息之后，根据SR消息的信噪比与目标信噪比之间的差异，确定TPC调整值，并将TPC指令发送至UE。
作为一种可能的实现方式，如果基站确定接收到的PUCCH的信噪比小于目标信噪比，则可以确定当前PUCCH的通信质量还不理想，需要进一步上调PUCCH的发射功率，从而可以将目标信噪比与接收到的PUCCH信号的信噪比的差值(该差值大于0)，确定为TPC功率调整值，以使UE根据TPC功率调整值，可以进一步上调PUCCH的发射功率；如果基站确定接收到的PUCCH的信噪比大于目标信噪比，则可以确定当前PUCCH的通信质量较好，并且可以适当下调PUCCH的发射功率，以降低UE的功耗，从而可以将目标信噪比与接收到的PUCCH信号的信噪比的差值(该差值小于0)，确定为TPC功率调整值，以使UE根据TPC功率调整值，可以适当下调PUCCH的发射功率。其中，基站确定TPC功率调整值时使用的信噪比，可以是信噪比(Signal Noise Ratio，SNR)，也可以是信号与干扰加噪声比(Signal to Interference plus Noise Ratio，SINR)，本申请实施例对此不做限定。
步骤205，将调整后的PRACH发射功率上调幅度与TPC功率调整值之和，确定为目标功率调整值。
在本申请实施例中，在将前述公式(1)(2)(3)作为预设的PUCCH发射功率计 算公式时，可以将调整后的PRACH发射功率上调幅度作为ΔPrampup,b,f,c、将TPC功率调整值作为δb,f,c代入公式(3)，确定出目标功率调整值gb,f,c(0)，即可以将调整后的PRACH发射功率上调幅度与TPC功率调整值之和，确定为目标功率调整值。
步骤206，根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。
上述步骤206的具体实现过程及原理，可以参照上述实施例的详细描述，此处不再赘述。
本申请实施例提供的PUCCH的发射功率控制方法，通过获取用户终端UE与基站在随机接入成功时的PRACH发射功率上调幅度，并在基站发送的RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，之后获取基站发送的TPC指令，并将TPC指令中包括PUCCH对应的TPC功率调整值与调整后的PRACH发射功率上调幅度之和，确定为PUCCH对应的目标功率调整值，进而根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。由此，通过在基站在RRC建立消息中对PUCCH对应的功率配置字段进行了配置时，根据随机接入过程中PRACH发射功率上调幅度与功率配置字段的实际数值水平，灵活调整PRACH发射功率上调幅度，使得在后续确定PUCCH的发射功率时，PUCCH的发射功率不会因为PRACH发射功率上调幅度的变化产生陡降，以保证PUCCH承载的信息可以成功发送，并根据基站下发的TPC指令对PUCCH的发射功率进行进一步精调，从而不仅进一步避免了基站与UE之间上行链路的数据传输拥塞，进一步提升了系统的通信稳定性和流畅度；而且进一步降低了UE的功耗。
应理解，上述实施例中各步骤的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
对应于上文实施例所述的PUCCH的发射功率控制方法，图3示出了本申请实施例提供的PUCCH的发射功率控制装置的结构框图，为了便于说明，仅示出了与本申请实施例相关的部分。
参照图3，该装置30，包括：
第一获取模块31，用于获取UE与基站在随机接入成功时的PRACH发射功率上调幅度；
第二获取模块32，用于获取基站发送的RRC建立消息；
第一调整模块33，用于在RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整；
第一确定模块34，用于根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值；
第二确定模块35，用于根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。
在实际使用时，本申请实施例提供的PUCCH的发射功率控制装置，可以被配置在任 意UE中，以执行前述PUCCH的发射功率控制方法。
本申请实施例提供的PUCCH的发射功率控制装置，通过获取用户终端UE与基站在随机接入成功时的PRACH发射功率上调幅度，并在基站发送的RRC建立消息中包含PUCCH对应的功率配置字段时，根据PRACH发射功率上调幅度和/或功率配置字段的取值，对PRACH发射功率上调幅度进行调整，之后根据调整后的PRACH发射功率上调幅度，确定PUCCH对应的目标功率调整值，进而根据预设的PUCCH发射功率计算公式、功率配置字段的取值及目标功率调整值，确定PUCCH对应的目标发射功率。由此，通过在基站在RRC建立消息中对PUCCH对应的功率配置字段进行了配置时，根据随机接入过程中PRACH发射功率上调幅度与功率配置字段的实际数值水平，灵活调整PRACH发射功率上调幅度，使得在后续确定PUCCH的发射功率时，PUCCH的发射功率不会因为PRACH发射功率上调幅度的变化产生陡降，以保证PUCCH承载的信息可以成功发送，从而避免了基站与UE之间上行链路的数据传输拥塞，提升了系统的通信稳定性和流畅度。
在本申请一种可能的实现形式中，上述第一调整模块33，包括：
第一调整单元，用于在PRACH发射功率上调幅度小于或等于第一阈值时，将PRACH发射功率上调幅度置为0；
第二调整单元，用于在PRACH发射功率上调幅度大于第一阈值时，保持PRACH发射功率上调幅度不变。
进一步的，在本申请另一种可能的实现形式中，上述第一调整模块33，包括：
第三调整单元，用于在功率配置字段的取值大于第二阈值时，将PRACH发射功率上调幅度置为0；
第四调整单元，用于在功率配置字段的取值小于或等于第二阈值时，保持PRACH发射功率上调幅度不变。
进一步的，在本申请再一种可能的实现形式中，上述第一调整模块33，包括：
第五调整单元，用于在PRACH发射功率上调幅度小于或等于第一阈值且功率配置字段的取值大于第二阈值时，将PRACH发射功率上调幅度置为0；
第六调整单元，用于在PRACH发射功率上调幅度大于第一阈值、或者功率配置字段的取值小于或等于第二阈值时，保持PRACH发射功率上调幅度不变。
进一步的，在本申请又一种可能的实现形式中，上述第一调整模块33，包括：
第一确定单元，用于确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
第七调整单元，用于在差值小于或等于第三阈值时，将PRACH发射功率上调幅度置为0；
第八调整单元，用于在差值大于第三阈值时，保持PRACH发射功率上调幅度不变。
进一步的，在本申请又一种可能的实现形式中，上述第一调整模块33，包括：
第二确定单元，用于确定初始PUCCH消息对应的初始发射功率，其中，初始PUCCH消息为UE通过PUCCH向基站发送的、包含RRC建立消息的解析结果的反馈消息；
第九调整单元，用于在初始发射功率小于UE对应的最大发射功率时，将PRACH发射功率上调幅度置为0；
第十调整单元，用于在初始发射功率大于或等于最大发射功率时，保持PRACH发射 功率上调幅度不变。
进一步的，在本申请又一种可能的实现形式中，上述第二确定单元，具体用于：
根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率。
进一步的，在本申请另一种可能的实现形式中，上述第一调整模块33，包括：
第一确定单元，用于确定PRACH发射功率上调幅度与功率配置字段的取值之间的差值；
第二确定单元，用于根据预设的PUCCH发射功率计算公式及PRACH发射功率上调幅度，确定PUCCH对应的初始发射功率；
第十一调整单元，用于在差值小于或等于第三阈值且初始发射功率小于UE对应的最大发射功率时，将PRACH发射功率上调幅度置为0；
第十二调整单元，用于在差值大于第三阈值或者初始发射功率大于或等于最大发射功率时，保持PRACH发射功率上调幅度不变。
进一步的，在本申请再一种可能的实现形式中，上述装置30，还包括：
第二调整模块，用于在RRC建立消息中未包含功率配置字段时，保持PRACH发射功率上调幅度不变；
相应的，上述第二确定模块35，包括：
第三确定单元，用于根据预设的PUCCH发射功率计算公式及目标功率调整值，确定PUCCH对应的目标发射功率。
进一步的，在本申请又一种可能的实现形式中，上述装置30，还包括：
第三获取模块，用于获取基站发送的TPC指令，其中，TPC指令中包括PUCCH对应的TPC功率调整值；
相应的，上述第一确定模块34，包括：
第四确定单元，用于将调整后的PRACH发射功率上调幅度与TPC功率调整值之和，确定为目标功率调整值。
需要说明的是，上述装置/单元之间的信息交互、执行过程等内容，由于与本申请方法实施例基于同一构思，其具体功能及带来的技术效果，具体可参见方法实施例部分，此处不再赘述。
所属领域的技术人员可以清楚地了解到，为了描述的方便和简洁，仅以上述各功能单元、模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能单元、模块完成，即将所述装置的内部结构划分成不同的功能单元或模块，以完成以上描述的全部或者部分功能。实施例中的各功能单元、模块可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中，上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。另外，各功能单元、模块的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。上述系统中单元、模块的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
为了实现上述实施例，本申请还提出一种UE。
图4为本申请一个实施例的UE的结构示意图。
如图4所示，上述UE200包括：
存储器210及至少一个处理器220，连接不同组件(包括存储器210和处理器220)的总线230，存储器210存储有计算机程序，当处理器220执行所述程序时实现本申请实施例所述的PUCCH的发射功率控制方法。
总线230表示几类总线结构中的一种或多种，包括存储器总线或者存储器控制器，外围总线，图形加速端口，处理器或者使用多种总线结构中的任意总线结构的局域总线。举例来说，这些体系结构包括但不限于工业标准体系结构(ISA)总线，微通道体系结构(MAC)总线，增强型ISA总线、视频电子标准协会(VESA)局域总线以及外围组件互连(PCI)总线。
UE200典型地包括多种电子设备可读介质。这些介质可以是任何能够被UE200访问的可用介质，包括易失性和非易失性介质，可移动的和不可移动的介质。
存储器210还可以包括易失性存储器形式的计算机系统可读介质，例如随机存取存储器(RAM)240和/或高速缓存存储器250。UE200可以进一步包括其它可移动/不可移动的、易失性/非易失性计算机系统存储介质。仅作为举例，存储系统260可以用于读写不可移动的、非易失性磁介质(图4未显示，通常称为“硬盘驱动器”)。尽管图4中未示出，可以提供用于对可移动非易失性磁盘(例如“软盘”)读写的磁盘驱动器，以及对可移动非易失性光盘(例如CD-ROM,DVD-ROM或者其它光介质)读写的光盘驱动器。在这些情况下，每个驱动器可以通过一个或者多个数据介质接口与总线230相连。存储器210可以包括至少一个程序产品，该程序产品具有一组(例如至少一个)程序模块，这些程序模块被配置以执行本申请各实施例的功能。
具有一组(至少一个)程序模块270的程序/实用工具280，可以存储在例如存储器210中，这样的程序模块270包括——但不限于——操作系统、一个或者多个应用程序、其它程序模块以及程序数据，这些示例中的每一个或某种组合中可能包括网络环境的实现。程序模块270通常执行本申请所描述的实施例中的功能和/或方法。
UE200也可以与一个或多个外部设备290(例如键盘、指向设备、显示器291等)通信，还可与一个或者多个使得用户能与该UE200交互的设备通信，和/或与使得该UE200能与一个或多个其它计算设备进行通信的任何设备(例如网卡，调制解调器等等)通信。这种通信可以通过输入/输出(I/O)接口292进行。并且，UE200还可以通过网络适配器293与一个或者多个网络(例如局域网(LAN)，广域网(WAN)和/或公共网络，例如因特网)通信。如图所示，网络适配器293通过总线230与UE200的其它模块通信。应当明白，尽管图中未示出，可以结合UE200使用其它硬件和/或软件模块，包括但不限于：微代码、设备驱动器、冗余处理单元、外部磁盘驱动阵列、RAID系统、磁带驱动器以及数据备份存储系统等。
处理器220通过运行存储在存储器210中的程序，从而执行各种功能应用以及数据处理。
需要说明的是，本实施例的UE的实施过程和技术原理参见前述对本申请实施例的PUCCH的发射功率控制方法的解释说明，此处不再赘述。
本申请实施例还提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序被处理器执行时实现可实现上述各个方法实施例中的步骤。
本申请实施例提供了一种计算机程序产品，当计算机程序产品在UE上运行时，使得UE执行时实现可实现上述各个方法实施例中的步骤。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请实现上述实施例方法中的全部或部分流程，可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于计算机可读存储介质中，该计算机程序在被处理器执行时，可实现上述各个方法实施例的步骤。其中，所述计算机程序包括计算机程序代码，所述计算机程序代码可以为源代码形式、对象代码形式、可执行文件或某些中间形式等。所述计算机可读介质至少可以包括：能够将计算机程序代码携带到装置/UE的任何实体或装置、记录介质、计算机存储器、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、电载波信号、电信信号以及软件分发介质。例如U盘、移动硬盘、磁碟或者光盘等。在某些司法管辖区，根据立法和专利实践，计算机可读介质不可以是电载波信号和电信信号。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述或记载的部分，可以参见其它实施例的相关描述。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
在本申请所提供的实施例中，应该理解到，所揭露的装置/UE和方法，可以通过其它的方式实现。例如，以上所描述的装置/UE实施例仅仅是示意性的，例如，所述模块或单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通讯连接可以是通过一些接口，装置或单元的间接耦合或通讯连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。以上所述实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围，均应包含在本申请的保护范围之内。

Claims (22)

  1. 一种上行控制信道的发射功率控制方法，其特征在于，包括：
    获取用户终端UE与基站在随机接入成功时的随机接入信道PRACH发射功率上调幅度；
    获取所述基站发送的无线资源控制RRC建立消息；
    在所述RRC建立消息中包含所述上行控制信道PUCCH对应的功率配置字段时，根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整；
    根据调整后的PRACH发射功率上调幅度，确定所述PUCCH对应的目标功率调整值；
    根据预设的PUCCH发射功率计算公式、所述功率配置字段的取值及所述目标功率调整值，确定所述PUCCH对应的目标发射功率。
  2. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    若所述PRACH发射功率上调幅度小于或等于第一阈值，则将所述PRACH发射功率上调幅度置为0；
    若所述PRACH发射功率上调幅度大于所述第一阈值，则保持所述PRACH发射功率上调幅度不变。
  3. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    若所述功率配置字段的取值大于第二阈值，则将所述PRACH发射功率上调幅度置为0；
    若所述功率配置字段的取值小于或等于所述第二阈值，则保持所述PRACH发射功率上调幅度不变。
  4. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    若所述PRACH发射功率上调幅度小于或等于第一阈值且所述功率配置字段的取值大于第二阈值，则将所述PRACH发射功率上调幅度置为0；
    否则，保持所述PRACH发射功率上调幅度不变。
  5. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    确定所述PRACH发射功率上调幅度与所述功率配置字段的取值之间的差值；
    若所述差值小于或等于第三阈值，则将所述PRACH发射功率上调幅度置为0；
    若所述差值大于所述第三阈值，则保持所述PRACH发射功率上调幅度不变。
  6. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    确定初始PUCCH消息对应的初始发射功率，其中，所述初始PUCCH消息为所述UE通过所述PUCCH向所述基站发送的、包含所述RRC建立消息的解析结果的反馈消息；
    若所述初始发射功率小于所述UE对应的最大发射功率，则将所述PRACH发射功率上调幅度置为0；
    若所述初始发射功率大于或等于所述最大发射功率，则保持所述PRACH发射功率上调幅度不变。
  7. 如权利要求6所述的方法，其特征在于，所述确定初始PUCCH消息对应的初始发射功率，包括：
    根据所述预设的PUCCH发射功率计算公式及所述PRACH发射功率上调幅度，确定所述PUCCH对应的初始发射功率。
  8. 如权利要求1所述的方法，其特征在于，所述根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整，包括：
    确定所述PRACH发射功率上调幅度与所述功率配置字段的取值之间的差值；
    确定初始PUCCH消息对应的初始发射功率，其中，所述初始PUCCH消息为所述UE通过所述PUCCH向所述基站发送的、包含所述RRC建立消息的解析结果的反馈消息；
    若所述差值小于或等于第三阈值且所述初始发射功率小于所述UE对应的最大发射功率，则将所述PRACH发射功率上调幅度置为0；
    若所述差值大于所述第三阈值或者所述初始发射功率大于或等于所述最大发射功率，则保持所述PRACH发射功率上调幅度不变。
  9. 如权利要求1-8任一所述的方法，其特征在于，所述根据调整后的PRACH发射功率上调幅度，确定所述PUCCH对应的目标功率调整值之前，还包括：
    在所述RRC建立消息中未包含所述功率配置字段时，保持所述PRACH发射功率上调幅度不变；
    所述根据预设的PUCCH发射功率计算公式、所述功率配置字段的取值及所述目标功率调整值，确定所述PUCCH对应的目标发射功率，包括：
    根据所述预设的PUCCH发射功率计算公式及所述目标功率调整值，确定所述PUCCH对应的目标发射功率。
  10. 如权利要求1-9任一所述的方法，其特征在于，所述根据调整后的PRACH发射功率上调幅度，确定所述PUCCH对应的目标功率调整值之前，还包括：
    获取所述基站发送的传输功率控制TPC指令，其中，所述TPC指令中包括所述PUCCH对应的TPC功率调整值；
    所述根据调整后的PRACH发射功率上调幅度，确定所述PUCCH对应的目标功率调整值，包括：
    将所述调整后的PRACH发射功率上调幅度与所述TPC功率调整值之和，确定为所述目标功率调整值。
  11. 一种PUCCH的发射功率控制装置，其特征在于，包括：
    第一获取模块，用于获取UE与基站在随机接入成功时的PRACH发射功率上调幅度；
    第二获取模块，用于获取所述基站发送的RRC建立消息；
    第一调整模块，用于在所述RRC建立消息中包含所述PUCCH对应的功率配置字段时，根据所述PRACH发射功率上调幅度和/或所述功率配置字段的取值，对所述PRACH发射功率上调幅度进行调整；
    第一确定模块，用于根据调整后的PRACH发射功率上调幅度，确定所述PUCCH对应的目标功率调整值；
    第二确定模块，用于根据预设的PUCCH发射功率计算公式、所述功率配置字段的取值及所述目标功率调整值，确定所述PUCCH对应的目标发射功率。
  12. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第一调整单元，用于在所述PRACH发射功率上调幅度小于或等于第一阈值时，将所述PRACH发射功率上调幅度置为0；
    第二调整单元，用于在所述PRACH发射功率上调幅度大于所述第一阈值时，保持所述PRACH发射功率上调幅度不变。
  13. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第三调整单元，用于在所述功率配置字段的取值大于第二阈值时，将所述PRACH发射功率上调幅度置为0；
    第四调整单元，用于在所述功率配置字段的取值小于或等于所述第二阈值时，保持所述PRACH发射功率上调幅度不变。
  14. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第五调整单元，用于在所述PRACH发射功率上调幅度小于或等于第一阈值且所述功率配置字段的取值大于第二阈值时，将所述PRACH发射功率上调幅度置为0；
    第六调整单元，用于在所述PRACH发射功率上调幅度大于所述第一阈值、或者所述功率配置字段的取值小于或等于第二阈值时，保持所述PRACH发射功率上调幅度不变。
  15. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第一确定单元，用于确定所述PRACH发射功率上调幅度与所述功率配置字段的取值之间的差值；
    第七调整单元，用于在所述差值小于或等于第三阈值时，将所述PRACH发射功率上调幅度置为0；
    第八调整单元，用于在所述差值大于所述第三阈值时，保持所述PRACH发射功率上调幅度不变。
  16. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第二确定单元，用于确定初始PUCCH消息对应的初始发射功率，其中，所述初始PUCCH消息为所述UE通过所述PUCCH向所述基站发送的、包含所述RRC建立消息的解析结果的反馈消息；
    第九调整单元，用于在所述初始发射功率小于所述UE对应的最大发射功率时，将所述PRACH发射功率上调幅度置为0；
    第十调整单元，用于在所述初始发射功率大于或等于所述最大发射功率时，保持所述PRACH发射功率上调幅度不变。
  17. 如权利要求16所述的装置，其特征在于，所述第二确定单元，具体用于：
    根据所述预设的PUCCH发射功率计算公式及所述PRACH发射功率上调幅度，确定所述PUCCH对应的初始发射功率。
  18. 如权利要求11所述的装置，其特征在于，所述第一调整模块，包括：
    第一确定单元，用于确定所述PRACH发射功率上调幅度与所述功率配置字段的取值 之间的差值；
    第二确定单元，用于根据所述预设的PUCCH发射功率计算公式及所述PRACH发射功率上调幅度，确定所述PUCCH对应的初始发射功率；
    第十一调整单元，用于在所述差值小于或等于第三阈值且所述初始发射功率小于所述UE对应的最大发射功率时，将所述PRACH发射功率上调幅度置为0；
    第十二调整单元，用于在所述差值大于所述第三阈值或者所述初始发射功率大于或等于所述最大发射功率时，保持所述PRACH发射功率上调幅度不变。
  19. 如权利要求11-18任一所述的装置，其特征在于，所述装置，还包括：
    第二调整模块，用于在所述RRC建立消息中未包含所述功率配置字段时，保持所述PRACH发射功率上调幅度不变；
    所述第二确定模块，包括：
    第三确定单元，用于根据所述预设的PUCCH发射功率计算公式及所述目标功率调整值，确定所述PUCCH对应的目标发射功率。
  20. 如权利要求11-19任一所述的装置，其特征在于，所述装置，还包括：
    第三获取模块，用于获取所述基站发送的TPC指令，其中，所述TPC指令中包括所述PUCCH对应的TPC功率调整值；
    所述第一确定模块，包括：
    第四确定单元，用于将所述调整后的PRACH发射功率上调幅度与所述TPC功率调整值之和，确定为所述目标功率调整值。
  21. 一种UE，包括存储器、处理器以及存储在所述存储器中并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如权利要求1-10中任一项所述的方法。
  22. 一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1-10中任一项所述的方法。
PCT/CN2023/136369 2023-01-13 2023-12-05 Pucch的发射功率控制方法、装置及用户终端 Ceased WO2024148982A1 (zh)

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