WO2022067823A1 - Procédé et dispositif de commande de puissance de liaison montante - Google Patents

Procédé et dispositif de commande de puissance de liaison montante Download PDF

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Publication number
WO2022067823A1
WO2022067823A1 PCT/CN2020/119756 CN2020119756W WO2022067823A1 WO 2022067823 A1 WO2022067823 A1 WO 2022067823A1 CN 2020119756 W CN2020119756 W CN 2020119756W WO 2022067823 A1 WO2022067823 A1 WO 2022067823A1
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WIPO (PCT)
Prior art keywords
uplink transmission
power
terminal device
uplink
power parameter
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PCT/CN2020/119756
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English (en)
Chinese (zh)
Inventor
胡丹
张旭
曲秉玉
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2020/119756 priority Critical patent/WO2022067823A1/fr
Priority to CN202080105657.8A priority patent/CN116235566A/zh
Publication of WO2022067823A1 publication Critical patent/WO2022067823A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters

Definitions

  • the embodiments of the present application relate to the technical field of electronic devices, and in particular, to an uplink power control method and device.
  • the method of uplink power control can be divided into two modes: closed-loop power control and power control.
  • Closed-loop power control means that a user terminal (User Equipment, UE) decides to increase or decrease the transmit signal power based on the link quality fed back by the base station.
  • the power control means that the UE decides the power of the transmitted signal by itself according to the fading condition of the received signal.
  • Uplink channels include Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUSCH), Physical Random Access Channel (PRACH), and uplink signals include Sounding Reference Signal ( Sounding Reference Signal, SRS), etc.
  • PUSCH Physical Uplink Shared Channel
  • PUSCH Physical Uplink Control Channel
  • PRACH Physical Random Access Channel
  • uplink signals include Sounding Reference Signal ( Sounding Reference Signal, SRS), etc.
  • SRS Sounding Reference Signal
  • the UE can determine the path loss to be compensated by using the path loss compensation factor ⁇ and the estimated value of the downlink path loss between the base station and the UE, and then It enables the UE to increase the transmit power, thereby ensuring the reliability of the base station's reception.
  • the transmission power of the terminal device determined according to the single-station measurement may cause serious interference between users.
  • the embodiments of the present application provide an uplink power control method, which can control the uplink transmit power of a terminal device and reduce interference to other terminal devices.
  • an embodiment of the present application provides a method for uplink power control.
  • the terminal device acquires the first power parameter, and determines the first transmit power according to the first power parameter, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor. Afterwards, the terminal device may send the first uplink transmission using the first transmit power.
  • the terminal device after acquiring the first power parameters (power offset and path loss compensation factor), the terminal device can determine the first transmit power according to the power offset and the path loss compensation factor, so as to ensure that the first transmit power is not would be too large. Therefore, in the technical solution of the present application, when the terminal device uses the first transmit power to send the first uplink transmission, interference to other terminal devices is reduced.
  • the above-mentioned method for "the terminal device can acquire the first power parameter" includes: the terminal device can receive first indication information, where the first indication information is used to indicate the first power parameter .
  • the terminal device can acquire the first power parameter according to the first indication information.
  • the method further includes: the terminal device may acquire first information, where the first information is used to indicate a mapping relationship between the first indication information and the second power parameter. Afterwards, the terminal device may acquire the medium access control unit, where the medium access control unit is used to indicate the mapping relationship between the first indication information and the first power parameter.
  • the terminal device since the first information is used to indicate the mapping relationship between the first indication information and the second power parameter. Therefore, after the terminal device acquires the first information, what the terminal device stores is the mapping relationship between the first indication information and the second power parameter. Also, because the medium access control unit is used to indicate the mapping relationship between the first indication information and the first power parameter. Therefore, after the terminal device acquires the medium access control unit, what is stored in the terminal device is the mapping relationship between the first indication information and the first power parameter. In this way, when the terminal device acquires the first indication information, it can acquire the first power parameter according to the first indication information.
  • the method further includes: the terminal device may acquire second information, where the second information is used to enable the terminal device to update the power parameter.
  • acquiring the second information by the terminal device enables the terminal device to update the power parameter. That is, when the second power parameter is stored in the terminal device, the terminal device obtains the second information to enable the terminal device to update the second power parameter to the first power parameter. In this way, after the terminal acquires the medium access control unit, the terminal device can update the correspondence between the first indication information and the power parameter.
  • the method further includes: the terminal device sends the second uplink transmission and/or the third uplink transmission.
  • the method further includes: the terminal device may acquire the first path loss reference signal and the second path loss reference signal.
  • the second uplink transmission includes a first power headroom report determined from the first pathloss reference signal
  • the third uplink transmission includes a second power headroom report determined from the second pathloss reference signal.
  • an embodiment of the present application provides a method for uplink power control.
  • the network device may send the first power parameter to the terminal device, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor. After that, the network device receives the first uplink transmission, and the transmit power of the first uplink transmission is determined according to the first power parameter.
  • the above method of "the network device can send the first power parameter to the terminal device” includes: the network device can send the first indication information to the terminal device, and the first indication information is used for A first power parameter is indicated.
  • the method further includes: the network device may send first information to the terminal device, where the first information is used to indicate the difference between the first indication information and the second power parameter Mapping relations. After that, the network device sends a media access control unit to the terminal device, where the media access control unit is used to indicate the mapping relationship between the first indication information and the first power parameter.
  • the method further includes: the network device sends second information, where the second information is used to enable the terminal device to update the power parameter.
  • the method further includes: the network device receives the second uplink transmission, and obtains one or more measurement values of the second uplink transmission;
  • the network device determines the first power parameter according to one or more measurement values of the second uplink transmission.
  • the network device when the network device receives the second uplink transmission sent by the terminal device, it can obtain the measurement value of the second uplink transmission (for example, the first measurement value A). At the same time, after the second uplink transmission sent by the terminal device is received by other network devices, other network devices can also obtain the measurement value of the second uplink transmission (for example, the first measurement value B), and send the second uplink transmission to the network device. 2. Measured value of upstream transmission. In this way, the network device can obtain the first measurement value A and the first measurement value B.
  • the first measurement value A is the same as the first measurement value B, or the first measurement value A and the first measurement value B are different.
  • the method further includes: the network device may acquire the measurement value of the second uplink transmission and the measurement value of the third uplink transmission, and according to the measurement value of the second uplink transmission and the measurement value of the third uplink transmission The measured value of the third uplink transmission determines the first power parameter; or, the network device acquires the transmit power of the second uplink transmission and the transmit power of the third uplink transmission, and according to the transmit power of the second uplink transmission and the transmit power of the third uplink transmission transmit power to determine the first power parameter; or, the network device obtains the first uplink path loss corresponding to the second uplink transmission and the second uplink path loss corresponding to the third uplink transmission, and determines the first uplink path loss according to the first uplink path loss and the second uplink path loss. loss, and determine the first power parameter.
  • the network device can determine the first power parameter by using different uplink transmission measurement values.
  • the measured value of the uplink transmission is the received power of the uplink shared channel; or, the measured value of the uplink transmission is the received power of the demodulation reference signal.
  • the method further includes: the network device may send the first path loss reference signal and the second path loss reference signal.
  • a terminal device in a third aspect, includes: an acquisition unit, a determination unit, and a transmission unit.
  • the obtaining unit is configured to obtain a first power parameter, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor.
  • the determining unit determines the first transmit power according to the first power parameter.
  • a sending unit configured to send the first uplink transmission by using the first transmit power.
  • the obtaining unit is specifically configured to receive first indication information, where the first indication information is used to indicate the first power parameter; obtain the first information, where the first information is used to indicate The mapping relationship between the first indication information and the second power parameter; the medium access control unit is obtained, and the medium access control unit is used to indicate the mapping relationship between the first indication information and the first power parameter.
  • the obtaining unit is further configured to obtain second information, where the second information is used to enable the terminal device to update the power parameter.
  • the sending unit is further configured to send the second uplink transmission and/or the third uplink transmission.
  • the obtaining unit is further configured to obtain the first path loss reference signal and the second path loss reference signal; wherein, the second uplink transmission includes according to the first path loss reference signal The determined first power headroom report, and the third uplink transmission includes the second power headroom report determined according to the second path loss reference signal.
  • the terminal device may further include a storage unit, where the storage unit stores programs or instructions.
  • the processing unit executes the program or instruction
  • the terminal device described in the third aspect can execute the uplink power control method described in the first aspect.
  • a network device in a fourth aspect, includes a sending unit and a receiving unit.
  • the sending unit is configured to send a first power parameter to the terminal device, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor.
  • the receiving unit is configured to receive the first uplink transmission, and the transmit power of the first uplink transmission is determined according to the first power parameter.
  • the sending unit is specifically configured to send first indication information to the terminal device, where the first indication information is used to indicate the first power parameter; and send the first information to the terminal device, The first information is used to indicate the mapping relationship between the first indication information and the second power parameter; the medium access control unit is sent to the terminal device, and the medium access control unit is used to indicate the relationship between the first indication information and the first power parameter mapping relationship.
  • the sending unit is further configured to send second information, where the second information is used to enable the terminal device to update the power parameter.
  • the above-mentioned network device further includes a determination unit.
  • the receiving unit is further configured to receive the second uplink transmission and obtain one or more measurement values of the second uplink transmission.
  • a determining unit configured to determine the first power parameter according to one or more measurement values of the second uplink transmission.
  • the receiving unit is further configured to acquire the measurement value of the second uplink transmission and the measurement value of the third uplink transmission.
  • the determining unit is further configured to determine the first power parameter according to the measurement value of the second uplink transmission and the measurement value of the third uplink transmission.
  • the receiving unit is further configured to acquire the transmit power of the second uplink transmission and the transmit power of the third uplink transmission.
  • the determining unit is further configured to determine the first power parameter according to the transmit power of the second uplink transmission and the transmit power of the third uplink transmission.
  • the receiving unit is further configured to acquire the first uplink path loss corresponding to the second uplink transmission and the second uplink path loss corresponding to the third uplink transmission.
  • the determining unit is further configured to determine the first power parameter according to the first uplink path loss and the second uplink path loss.
  • the measured value of the uplink transmission is the received power of the uplink shared channel; or, the measured value of the uplink transmission is the received power of the demodulation reference signal.
  • the sending unit is further configured to send the first path loss reference signal and the second path loss reference signal.
  • the network device may further include a storage unit, where the storage unit stores programs or instructions.
  • the processing unit executes the program or instruction
  • the terminal device described in the fourth aspect can execute the uplink power control method described in the first aspect.
  • an apparatus for controlling uplink power includes: a processor coupled with a memory, the memory is used for storing a computer program; the processor is used for executing the computer program stored in the memory, so that the upstream power control apparatus executes the first aspect or the second
  • the uplink power control method described in any one possible implementation manner in the aspect is provided.
  • the uplink power control apparatus described in the sixth aspect may further include a transceiver.
  • the transceiver may be a transceiver circuit or an input/output port.
  • the transceiver may be used for the uplink power control device to communicate with other uplink power control devices.
  • the uplink power control apparatus described in the fifth aspect may be a terminal device or a network device, or a chip (system) or other components or components provided inside the terminal device or the network device.
  • a computer-readable storage medium comprising: a computer program or instruction; when the computer program or instruction is run on a computer, the computer is made to execute any possible implementation of the first aspect or the second aspect The uplink power control method described in the method.
  • a computer program product comprising a computer program or instructions, when the computer program or instructions are run on a computer, the computer is made to execute any one of the possible implementations described in the first aspect or the second aspect. the uplink power control method.
  • FIG. 1 is a schematic diagram of uplink power control for single-cell measurement according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another uplink power control method provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another uplink power control method provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another uplink power control method provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram 1 of a terminal device according to an embodiment of the present application.
  • FIG. 9 is a second schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram 1 of a network device according to an embodiment of the present application.
  • FIG. 11 is a second schematic structural diagram of a network device according to an embodiment of the present application.
  • A/B generally indicates that the related objects before and after are an “or” relationship.
  • A/B can be understood as A or B.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as “first” or “second” may expressly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise specified, "plurality" means two or more.
  • references to the terms “comprising” and “having” in the description of this application, and any variations thereof, are intended to cover non-exclusive inclusion.
  • a process, method, system, product or device comprising a series of steps or modules is not limited to the listed steps or modules, but may optionally also include other unlisted steps or modules, or optionally also Other steps or modules inherent to these processes, methods, products or devices are included.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations. Any embodiment or design described in this application as “exemplary” or “such as” should not be construed as preferred or advantageous over other embodiments or designs. Rather, use of words such as “exemplary” or “such as” is intended to present concepts in a specific manner.
  • transmission reception point (transmission reception point, TRP) 1 provides services for UE1 and UE3
  • TRP2 provides services for UE2.
  • the UE uses the power parameter set number j (j is an integer greater than or equal to 0) to transmit the PUSCH on the uplink active part bandwidth (Bandwidth part) b of the carrier f of the serving cell (serving cell) c, and the power control adjustment state index value is 1
  • determining the transmit power P PUSCH,b,f,c (i,j,q d ,l) of the PUSCH at the transmission opportunity i can satisfy Formula 1.
  • P CMAX,f,c (i) is the maximum output power configured on the PUSCH transmission opportunity i on the carrier f of the serving cell c
  • P O_PUSCH,b,f,c (j) is the target power expected to be received by the serving cell value
  • ⁇ is the value corresponding to the Subcarrier Size (SCS) configuration
  • ⁇ b,f,c (j) is the path loss compensation factor
  • PL b,f,c (q d ) is the estimated value of the downlink path loss
  • ⁇ TF,b,f,c (i) is the modulation and coding strategy (Modulation and Coding Scheme, MCS) related information
  • f b, f, c (i, l) is the PUSCH power control adjustment state on the PUSCH transmission opportunity i
  • PCMAX,f,c (i) is related to factors such as the transmission capability of the UE, the frequency domain resource allocation of the PUSCH, and the like.
  • P0 UE-specific part
  • P0 and ⁇ b, f, c (j) are power parameters.
  • the base station may configure multiple power parameter sets for the UE, and the power parameter sets include: power control set ID, P0, and ⁇ b,f,c (j).
  • the UE can acquire the power control parameters in the following two ways.
  • the UE can determine the power parameter set number j used for the current PUSCH transmission according to the current transmission mode and the value indicated by the Sounding Reference Signal Indication (SRI) field, and then determine the difference between P0 and ⁇ according to the power parameter set number j. value.
  • the base station configures multiple sets of power parameters for the UE, and configures the corresponding rules of power parameters and SRI for the UE, as well as the mapping relationship between the value of the SRI field and the set of power parameters, and the DCI for scheduling the PUSCH includes the SRI field
  • the UE may determine the power parameter set used by the UE to send the PUSCH according to the above mapping relationship and the value of the SRI field.
  • one SRI code bit corresponds to one power parameter set.
  • the SRI field configured by the base station for the UE is 2 bits, the SRI has four values of 00/01/10/11, and each value corresponds to a power parameter set (ID, P0, ⁇ ).
  • PL b,f,c (q d ) is an estimated downlink path loss calculated by the UE according to the path loss reference signal q d , and the estimated downlink path loss can be used as a path loss compensation value for uplink power control.
  • the downlink path loss estimate can be determined in the following three ways.
  • Mode 1 If the UE is not equipped with a PUSCH pathloss reference signal (PUSCH-pathlossReferenceRS), or before the UE configures the dedicated parameters, the UE uses a synchronization signal block (SSB) to calculate the estimated downlink path loss, and the SSB is used to obtain the estimated value of the downlink path loss.
  • PUSCH-pathlossReferenceRS PUSCH-pathlossReferenceRS
  • MIB Master information block
  • the UE uses the same path loss reference signal index value as the relevant PRACH transmission to calculate the downlink path loss estimate value.
  • RAR random access response
  • the RRC configuration information of the path loss reference signal includes: path loss reference signal ID and associated reference signal ID).
  • the base station can configure the association between multiple path loss reference signals and the SRI field for the UE, and the UE determines the reference signal corresponding to the value indicated by the SRI field according to the value indicated by the SRI field to determine the estimated value of the downlink path loss of the current PUSCH .
  • the estimated value of the downlink path loss can satisfy the following formula 2.
  • referenceSignalPower is the transmit power of the downlink reference signal configured by the high layer signaling
  • higher layer filtered RSRP0 is the received power of the reference signal after the high layer filtering received by the UE.
  • ReferenceSignalPower can be obtained in the following ways.
  • the ReferenceSignalPower can be configured through the synchronous broadcast signal block power ss-PBCH-BlockPower.
  • the referenceSignalPower can be configured through ss-PBCH-BlockPower and powerControlOffsetSS.
  • the powerControlOffsetSS is the difference between the transmission power of the CSI-RS and the transmission power of the SSB.
  • powerControlOffsetSS 0 if the UE is not configured with powerControlOffsetSS.
  • ⁇ TF ,b,f,c (i) The type of information that can be carried by PUSCH (for example, carrying uplink shared channel (UL-SCH) data information, or channel state information (Channel State Information, CSI) data information, etc. ), the location and quantity of physical resources occupied and other factors.
  • PUSCH for example, carrying uplink shared channel (UL-SCH) data information, or channel state information (Channel State Information, CSI) data information, etc.
  • f b, f, c (i, l) is notified by the base station through DCI signaling, which enables the base station to adjust the PUSCH transmit power in real time according to the current transmission channel state and scheduling situation.
  • UL CoMP refers to geographically separated multiple transmission points that jointly receive and combine data sent by one terminal (eg, PUSCH).
  • the multiple transmission points participating in the cooperation usually refer to the base stations of different cells.
  • the CoMP technology enables multiple cells to serve cell-edge UEs at the same time, so as to improve the coverage performance of edge UEs, thereby improving the spectral efficiency of cell-edge users.
  • FIG. 2 it is a schematic diagram of uplink multi-point coordinated transmission.
  • TRP1 provides services for UE1 and UE3
  • TRP2 provides services for UE2 and UE3, that is, TRP1 and TRP2 provide services for UE3 at the same time.
  • the power headroom refers to the difference between the maximum uplink transmit power of the UE and the current PUSCH transmit power. That is, the transmission power that the UE can use in addition to the transmission power used by the current PUSCH transmission.
  • the power headroom can be determined by the following two methods.
  • Method 1 The power headroom is determined based on the PUSCH, and the power headroom can satisfy the following formula 3.
  • PH type, b, f, c (i, j, q d , l) is the power headroom, and other parameters can be described in the parameters of formula 1, which will not be repeated here.
  • Method 2 The power headroom is determined based on SRS transmission.
  • the power headroom is a positive number, it means that the UE can transmit more data under the maximum power. If the power headroom is negative, it means that the UE's uplink transmission has exceeded the maximum allowable transmission power. That is to say, the power headroom can affect the scheduling of the base station, or the power headroom report can be used as a reference for the base station to allocate uplink RB resources.
  • a power headroom report can be triggered when any of the following five conditions are met.
  • Condition 1 The PHR disable timer (phr-ProhibitTimer) has expired or has expired, and the path loss change exceeds the PHR transmission power factor variable (phr-Tx-PowerFactorChange).
  • the path loss is any MAC used as a path loss reference since the last time the PHR was transmitted in the MAC entity when the media access control layer (Media access control, MAC) entity has uplink resources for new transmission. Pathloss of at least one active serving cell of the entity.
  • Condition 2 The PHR periodic timer (phr-PeriodicTimer) expires.
  • Condition 4 Activate the MAC entity of any configured uplink secondary cell (Secondary Cell, SCell).
  • Condition 5 Increase PSCell (Primary Secondary Cell, primary and secondary cells).
  • the transmission power of the terminal device determined according to the single-station measurement may cause serious interference between users.
  • the embodiment of the present application provides an uplink power control method.
  • FIG. 3 is a schematic structural diagram of a communication system to which the uplink power control method provided by the embodiment of the present application is applied.
  • the communication system includes network equipment and terminal equipment.
  • the network device includes a core network device 310 , a radio access network device 320 , and a radio access network device 330
  • the terminal device includes a user terminal 340 .
  • the radio access network device 320 and the radio access network device 330 may jointly provide services for the user terminal 340 .
  • the terminal equipment is connected with the wireless access network equipment in a wireless manner, and the wireless access network equipment is connected with the core network equipment in a wireless or wired manner.
  • the above-mentioned network device is a device located on the network side of the above-mentioned communication system and has a function of wireless transmission and reception, or a chip or a chip system that can be provided in the device.
  • the network devices include but are not limited to: access points (APs) in wireless fidelity (WiFi) systems, such as home gateways, routers, servers, switches, bridges, etc., evolved Node B (evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC), Base Transceiver Station (BTS), Home Base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit (BBU), wireless relay node, wireless backhaul node, transmission point (transmission and reception point, TRP or transmission point, TP) etc., it can also be 5G, such as a gNB in a new radio (NR) system, or a transmission point (TRP or TP), one
  • the core network device 310 and the radio access network device 320 may be independent and different physical devices, or the functions of the core network device 310 and the logical functions of the radio access network device 320 may be integrated in the same physical device.
  • the device may also be a physical device that integrates some functions of the core network device 310 and some functions of the radio access network device 320 .
  • the above-mentioned terminal equipment is a terminal that is connected to the above-mentioned communication system and has a wireless transceiver function, or a chip or a chip system that can be provided in the terminal.
  • the terminal equipment may also be referred to as user equipment, access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user equipment.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation security Wireless terminals in (transportation safety), wireless terminals in smart cities, wireless terminals in smart homes, in-vehicle terminals, RSUs with terminal functions, etc.
  • a virtual reality (virtual reality, VR) terminal device an augmented reality (augmented reality, AR) terminal Equipment
  • wireless terminals in industrial control wireless terminals in self-driving
  • wireless terminals in remote medical wireless terminals in smart grid
  • transportation security Wireless terminals in (transportation safety) wireless terminals in smart cities, wireless terminals in smart homes, in-vehicle terminals, RSUs with terminal functions, etc.
  • the terminal device of the present application may also be an on-board module, on-board module, on-board component, on-board chip or on-board unit built into the vehicle as one or more components or units, and the vehicle passes the built-in on-board module, on-board module,
  • the on-board component, on-board chip or on-board unit can implement the uplink power control method provided in this application.
  • FIG. 3 is only a simplified schematic diagram for easy understanding, and the communication system may further include other network devices and/or other terminal devices, which are not shown in FIG. 3 .
  • the uplink power control method provided by the embodiment of the present application will be described in detail below with reference to FIG. 4 to FIG. 7 .
  • FIG. 4 is a schematic flowchart of an uplink power control method provided by an embodiment of the present application.
  • the uplink power control method may include S401-S404.
  • the UE acquires a first power parameter.
  • the first power parameter includes at least one of the following: power offset P0, path loss compensation factor ⁇ .
  • the name of the first power parameter is also the power parameter, which is not limited in the embodiment of the present application.
  • the network device sends the first power parameter to the UE.
  • the UE receives the first power parameter sent by the network device.
  • the network device sends first indication information to the UE, where the first indication information is used to indicate the first power parameter.
  • the UE receives the first indication information to obtain the first power parameter.
  • the first indication information has the following two implementation manners.
  • the first indication information is a field in the DCI, and the DCI is used to schedule PUSCH transmission.
  • a field in the DCI may be an SRI field, or may be other fields in the DCI, which are not limited in this embodiment of the present application.
  • the embodiments of the present application are described below by taking the field in the DCI as an SRI field as an example.
  • the network device sends the correspondence between one value of the first indication information and at least two power parameters to the UE.
  • the first indication information includes: the power parameter, and the mapping relationship between the value of the SRI field and the power parameter; or, the mapping relationship between the value of the SRI field and the power parameter index; or, the value of the SRI field and The mapping relationship of the power parameter set index.
  • the set of power parameters includes the first power parameter.
  • the network device sends the correspondence between a value of the first indication information and a power parameter to the UE, and the network device uses the media access control unit to update the correspondence between the value of the first indication information and the power parameter, so that the UE Get the updated power parameters.
  • the network device before the network device sends the first power parameter to the UE, the network device sends the first information to the UE.
  • the first information is used to indicate the mapping relationship between the first indication information and the second power parameter, and the first information is a high layer parameter, or the first information is radio resource control RRC signaling.
  • the second power parameter includes at least one of the following: a power offset P0, and a path loss compensation factor.
  • the network device sends a media access control element (Media access control Control element, MAC CE) to the UE, where the MAC CE is used to indicate the mapping relationship between the first indication information and the first power parameter.
  • MAC CE Media access control Control element
  • the second power parameter is a power parameter in the case where the UE only accesses the primary serving cell.
  • the first power parameter is a power parameter when the UE simultaneously accesses the primary serving cell and the co-serving cell. Therefore, the first power parameter and the second power parameter are different.
  • the network device sends second information to the UE, where the second information is used to enable the UE to update the power parameter.
  • the network device sends second information to the UE, where the second information is used to enable the UE to update the power parameter.
  • the first indication information is CoMP configuration information for coordinated multi-point transmission.
  • the CoMP configuration information includes the first power parameter and reference signal information.
  • the first power parameter further includes a path loss reference signal.
  • the reference signal information includes at least one of the following information: sounding reference signal SRS time-frequency resources, SRS scrambling sequence, demodulation reference signal (Demodulation Reference Signal, DMRS) scrambling sequence and DMRS time-frequency resources.
  • the network device generates CoMP configuration information according to the first power parameter. After that, the network device sends the CoMP configuration information to the UE.
  • the first transmit power is determined by the first power parameter and the third power parameter. Therefore, in this embodiment of the present application, the network device further sends a third power parameter to the UE, where the third power parameter includes: PL b,f,c (q d ), ⁇ TF,b,f,c (i), f b,f,c (i,l), for the explanation of the third power parameter, please refer to the above formula 1 explanation, which will not be repeated here.
  • the network device when the network device sends the first power parameter to the UE, or before the network device sends the first power parameter to the UE, or after the network device sends the first power parameter to the UE, the network device sends the third power parameter to the UE , which is not limited in the embodiments of the present application.
  • the UE determines the first transmit power according to the first power parameter.
  • the UE receives first indication information from the network device, where the first indication information is used to indicate the first power parameter.
  • the UE acquires the first power parameter according to the first indication information. Afterwards, the UE determines the first transmit power according to the first power parameter.
  • the representation manner of the first indication information is the same as the representation manner of manner a in S501, that is, the first indication information is the SRI field.
  • the UE receives the SRI field from the network device, and obtains the first power parameter according to the corresponding relationship between the value indicated by the SRI field and the power parameter.
  • the UE when the first indication information is the SRI field, stores the mapping relationship between the value of the SRI field and the power parameter; or, the mapping relationship between the value of the SRI field and the power parameter index; or, The mapping relationship between the value of the SRI field and the index of the power parameter set.
  • the mapping relationship between the value of the SRI field and the power parameter stored in the UE; or, the mapping relationship between the value of the SRI field and the power parameter index; or, the mapping relationship between the value of the SRI field and the power parameter set index is It is configured by the RRC sent by the network device before the UE receives the first indication information from the network device.
  • the UE receives first information, where the first information is used to indicate a mapping relationship between the SRI and the second power parameter. That is, the UE stores the mapping relationship between the SRI and the second power parameter. Because the second power parameter is the power parameter in the case that the UE only accesses the primary serving cell. Therefore, when the first information is stored in the UE, it is indicated that the power parameter in the power parameter set stored in the UE is the second power parameter. That is, the UE may acquire the SRI field, and acquire the power parameter in the case where the UE only accesses the primary serving cell according to the value indicated by the SRI field.
  • the UE may acquire the SRI field, and determine the power parameter set and the second power parameter according to the SRI field. In this way, when the UE only accesses the primary serving cell, the second power parameter can be used to control the transmit power.
  • the UE receives the MAC CE sent by the network device, so that the updated first information is used to indicate the mapping relationship between the SRI and the first power parameter. That is, after the UE receives the MAC CE, the mapping relationship between the SRI field and the second power parameter stored in the UE is updated to the mapping relationship between the SRI field and the first power parameter.
  • P0 is a corresponding relationship of 6 decibel relative to one milliwatt (dBm).
  • the UE receives the MAC CE sent by the network device, and when the MAC CE is used to indicate that the value indicated by the SRI field is 00, P0 is 4dBm. That is to say, after the UE receives the MAC CE, when the UE stores the value indicated by the SRI field as 00, P0 is a corresponding relationship of 4dBm.
  • the UE when the UE accesses the primary serving cell and the co-serving cell at the same time, the UE obtains the SRI field, and can obtain the first power parameter according to the value indicated by the SRI field and the updated first information.
  • the first power parameter can be used to control the transmit power, so as to avoid using the second power parameter to control the transmit power, resulting in too high transmit power, which is harmful to other UEs. cause interference.
  • the UE acquires second information, where the second information is used to enable the UE to update the power parameter. That is to say, after the UE acquires the second information, the UE receives the MAC CE and causes the MAC to update the first information.
  • the actions performed by the UE include: (1) the UE receives the second information. (2) The UE receives the first information. (3) UE receives MAC CE. (4) The UE receives the first indication information. (5) The UE determines the first power parameter. The UE may execute (1) and/or (2) first (that is, the UE executes (1) first, and then executes (2); or the UE executes (2) first, and then executes (1); or the UE executes (1) at the same time. ) and (2)), and then execute (3), (4), (5) in sequence.
  • the representation manner of the first indication information is the same as the representation manner of manner b in S501, that is, the first indication information is CoMP configuration information.
  • the UE receives the CoMP configuration information from the network device, and obtains the first power parameter from the CoMP configuration information.
  • the first transmit power satisfies the following formula 4:
  • P PUSCH,b,f,c (i,j,q d ,l) is the transmission power (ie the first transmission power) of the PUSCH determined by the UE at the PUSCH transmission opportunity i
  • P O_CoMP,b,f,c ( j) (ie P0) is the target power value expected to be received by the serving cell
  • the UE sends the first uplink transmission by using the first transmit power.
  • the first transmit power determined by the technical solution of the present application is more accurate, that is, the first transmit power will not be too large. Therefore, the UE using the first transmit power to send the first uplink transmission will not cause interference to other UEs.
  • the network device receives the first uplink transmission.
  • the UE may determine the first transmit power according to the power offset and/or path loss compensation factor to ensure the first transmit power The power will not be too much. Therefore, in the technical solution of the present application, when the UE uses the first transmit power to send the first uplink transmission, the interference caused by other UEs is alleviated.
  • the network device includes a first network device and a second network device.
  • the embodiments of the present application will be described below by taking the first network device being TRP1 and the second network device being TRP2 as an example.
  • TRP1 is the network device of the primary serving cell of the UE
  • TRP2 is the network device of the cooperative serving cell of the UE.
  • the terminal before the network device sends the first power parameter to the UE, the terminal sends two uplink transmissions to the network device for implementing uplink power control on the UE. For example, taking the network devices as TRP1 and TRP2 as an example, the UE sends the second uplink transmission to TRP1, and the UE sends the third uplink transmission to TRP2.
  • the second uplink transmission is the same as the third uplink transmission, or the second uplink transmission is different from the third uplink transmission.
  • the uplink power control method may include S501-S508:
  • the UE sends the second uplink transmission to TRP1.
  • the second uplink transmission includes: SRS; or, the second uplink transmission is PUSCH; or, when the second uplink transmission is PUSCH, the PUSCH carries the first PHR, and the first power headroom report PHR includes the first maximum value reported by the UE transmit power.
  • the SRS includes: aperiodic SRS, semi-static SRS, and periodic SRS.
  • the UE sends the first PHR when sending the second uplink transmission to TRP1.
  • the fourth information includes: DCI, MAC CE, and radio resource control RRC signaling.
  • the UE receives third information sent by TRP1, where the third information is used to instruct the UE to send the second uplink transmission to TRP1. Afterwards, the UE sends a second uplink transmission to TRP1.
  • the UE sends the second uplink transmission to TRP1 without receiving the third information.
  • the second uplink transmission includes: periodic SRS and PUSCH.
  • the UE when sending the second uplink transmission to TRP1, the UE reports the transmit power of the second uplink transmission to TRP1.
  • the UE sends the third uplink transmission to TRP2.
  • the third uplink transmission further includes: SRS; or, the third uplink transmission is PUSCH; or, when the third uplink transmission is PUSCH, the PUSCH carries the second PHR, and the second PHR includes the maximum transmission power reported by the UE.
  • the SRS includes: aperiodic SRS, semi-static SRS, and periodic SRS.
  • the UE sends the second PHR only when the UE sends the third uplink transmission to the TRP2.
  • the second uplink transmission and the third uplink transmission may be the same or different, which is not limited in this embodiment of the present application.
  • both the second uplink transmission and the third uplink transmission are periodic SRS.
  • the second uplink transmission is periodic SRS
  • the third uplink transmission is PUSCH.
  • the UE receives the third information sent by TRP1, where the third information is further used to instruct the UE to send the third uplink transmission to TRP2. Afterwards, the UE sends a third uplink transmission to TRP2.
  • the UE sends the third uplink transmission to the TRP2 without receiving the third information.
  • the third uplink transmission includes: periodic SRS and PUSCH.
  • the UE when the UE sends the third uplink transmission to the TRP2, the UE reports the transmit power of the third uplink transmission to the TRP2.
  • TRP2 receives the third uplink transmission, and acquires the measurement value of the third uplink transmission.
  • the measured value is the uplink shared channel received power, or the reference signal received power (Reference Signal Received Power, RSRP). That is to say, TRP2 may acquire the uplink shared channel received power of the third uplink transmission, and may also acquire the second RSRP of the third uplink transmission.
  • RSRP Reference Signal Received Power
  • the RSRP is SRS-RSRP or DMRS-RSRP, which is not limited in this embodiment of the present application.
  • TRP2 acquires a second RSRP. After that, TRP2 sends a second RSRP to TRP1.
  • TRP2 acquires the transmit power of the third uplink transmission. After that, TRP2 sends the transmit power of the third uplink transmission to TRP1.
  • TRP2 acquires the transmit power of the second RSRP and the third uplink transmission.
  • TRP2 determines the second uplink path loss according to the second RSRP and the transmit power of the third uplink transmission, and sends the second uplink path loss to TRP1.
  • the second uplink path loss the transmit power of the third uplink transmission - the second RSRP.
  • TRP1 receives the second uplink transmission, and acquires the measurement value of the second uplink transmission.
  • TRP1 acquires the uplink shared channel received power of the second uplink transmission, or TRP1 acquires the first RSRP of the second uplink transmission.
  • the TRP1 determines the first power parameter in the following three ways.
  • TRP1 acquires the measurement value of the second uplink transmission and the measurement value of the third uplink transmission, and determines the first power parameter according to the measurement value of the second uplink transmission and the measurement value of the third uplink transmission.
  • TRP1 acquires the first RSRP and the second RSRP. TRP1 determines the first power parameter according to the difference between the first RSRP and the second RSRP.
  • the first uplink path loss and the second uplink path loss may be different, or the transmit power of the UE sending the second uplink transmission and the transmit power of the UE sending the third uplink transmission may be different, and the RSRP is affected by the uplink transmission. Loss and transmit power and other factors. Therefore, the first RSRP and the second RSRP may also be different.
  • TRP1 acquires the transmit power of the second uplink transmission and the transmit power of the third uplink transmission, and determines the first power parameter according to the transmit power of the second uplink transmission and the transmit power of the third uplink transmission.
  • TRP1 acquires the first uplink path loss corresponding to the second uplink transmission and the second uplink path loss corresponding to the third uplink transmission, and determines the first power parameter according to the first uplink path loss and the second uplink path loss.
  • TRP1 acquires the transmit power of the first RSRP and the second uplink transmission, and determines the first uplink path loss, the first uplink path loss-the transmit power of the second uplink transmission-the first RSRP. After that, TRP1 receives the second uplink path loss sent by TRP2. TRP1 determines the first power parameter according to the first uplink path loss and the second uplink path loss.
  • TRP1 sends the first power parameter to the UE.
  • the UE acquires the first power parameter.
  • the UE determines the first transmit power according to the first power parameter.
  • the UE sends the first uplink transmission by using the first transmit power.
  • the network device receives the second uplink transmission and or the third uplink transmission. Therefore, the network device may determine the first power parameters (power offset and path loss compensation factor) according to the uplink transmission. Therefore, after obtaining the first power parameter, the UE may determine the first transmit power according to the power offset and the path loss compensation factor, so as to ensure that the first transmit power is not too large. Therefore, in the technical solution of the present application, when the UE uses the first transmit power to send the first uplink transmission, it will not cause interference to other UEs.
  • the first power parameters power offset and path loss compensation factor
  • the terminal before the network device sends the first power parameter to the UE, the terminal sends an uplink transmission for implementing uplink power control on the UE. For example, taking the network devices as TRP1 and TRP2 as an example, before TRP1 sends the first power parameter to the UE, the UE sends a second uplink transmission, and both TRP1 and TRP2 receive the second uplink transmission.
  • the uplink power control method may further include S601-S607:
  • the UE sends the second uplink transmission.
  • the second uplink transmission includes: SRS; or, the second uplink transmission is PUSCH; or, when the second uplink transmission is PUSCH, the PUSCH carries the first PHR, and the first PHR includes the first maximum transmit power reported by the UE.
  • the SRS includes: aperiodic SRS, semi-static SRS, and periodic SRS.
  • the UE sends the first PHR only when the UE sends the second uplink transmission.
  • the UE receives the third information sent by TRP1, where the third information is further used to instruct the UE to send the second uplink transmission. Afterwards, the UE sends a second uplink transmission.
  • the UE sends the second uplink transmission without receiving the third information.
  • the second uplink transmission includes: periodic SRS and PUSCH.
  • the UE when the UE sends the second uplink transmission, it reports the transmit power of the second uplink transmission
  • TRP2 receives the second uplink transmission, and acquires the measurement value of the second uplink transmission.
  • TRP2 obtains the measurement value of the second uplink transmission. Afterwards, TRP2 sends the measurement value of the second uplink transmission to TRP1.
  • TRP1 receives the second uplink transmission, and acquires the measurement value of the second uplink transmission.
  • TRP1 receives the second uplink transmission sent by the UE, and obtains the measurement value of the second uplink transmission.
  • TRP1 receives the measurement value of the second uplink transmission sent by TRP2.
  • the measurement value of the second uplink transmission obtained by TRP1 and the measurement value of the second uplink transmission received by TRP1 and sent by TRP2 may be the same or different.
  • TRP1 determines the first power parameter according to the measurement value of the second uplink transmission obtained by TRP1 and the measurement value of the second uplink transmission received by TRP1 and sent by TRP2.
  • TRP1 sends the first power parameter to the UE.
  • the UE acquires the first power parameter.
  • the UE determines the first transmit power according to the first power parameter.
  • the UE sends the first uplink transmission by using the first transmit power.
  • TRP1 and TRP2 before the UE sends the uplink transmission, TRP1 and TRP2 send the path loss signal.
  • the uplink power control method may further include S701-S703.
  • TRP2 sends a second path loss reference signal.
  • the second path loss reference signal is the path loss reference signal of the second uplink path.
  • the second uplink path is the uplink path between the UE and TRP2.
  • TRP2 sends the second path loss reference signal to the UE.
  • TRP2 sends a second path loss reference signal to TRP1.
  • TRP1 sends a first path loss reference signal.
  • the first path loss reference signal is the path loss reference signal of the first uplink path.
  • the first uplink path is the uplink path between the UE and TRP1.
  • TRP1 receives the second path loss reference signal, and sends the first path loss reference signal and the second path loss reference signal to the UE.
  • TRP1 sends fourth information to the UE, where the fourth information is used to instruct the UE to transmit the PHR.
  • the fourth information includes: DCI, MAC CE, and RRC signaling.
  • the UE obtains the first path loss reference signal and the second path loss reference signal.
  • the UE obtains the first path loss reference signal sent by TRP1, and the UE obtains the second path loss reference signal sent by TRP2.
  • the UE obtains the first path loss reference signal and the second path loss reference signal sent by TRP1.
  • the UE determines the first PHR according to the first path loss reference signal; and the UE determines the second PHR according to the second path loss reference signal.
  • the UE obtains the first downlink path loss value of the first downlink path according to the first path loss reference signal, and determines the first PHR according to the first downlink path loss value.
  • the UE acquires the second downlink path loss value of the second downlink path according to the second path loss reference signal, and determines the second PHR according to the second downlink path loss value.
  • TRP1 in the above S501-S508, S601-S607, and S701-S703 is the network device in S401-S404 in the embodiment of the application. That is to say, the network devices in S401-S404 can all perform the actions performed by TRP1.
  • the uplink power control method provided by the embodiment of the present application has been described in detail above with reference to FIGS. 4-7 .
  • the terminal device provided by the embodiment of the present application is described in detail below with reference to FIG. 8 to FIG. 11 .
  • FIG. 8 is a first structural schematic diagram of a terminal device provided by an embodiment of the present application.
  • the terminal device includes: an obtaining unit 801 , a determining unit 802 , and a sending unit 803 .
  • FIG. 8 only shows the main components of the uplink power control apparatus.
  • the terminal device can be applied to the communication system shown in FIG. 3 or FIG. 4 to perform the function of controlling the uplink power in the uplink power control methods shown in FIGS. 4-7 .
  • the obtaining unit 801 is configured to obtain a first power parameter, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor.
  • the determining unit 802 is configured to determine the first transmit power according to the first power parameter.
  • the sending unit 803 is configured to send the first uplink transmission by using the first transmit power.
  • the obtaining unit 801 is specifically configured to receive first indication information, where the first indication information is used to indicate the first power parameter; obtain first information, where the first information is used to indicate the difference between the first indication information and the second power parameter. A mapping relationship; acquiring a media access control unit, where the media access control unit is used to indicate a mapping relationship between the first indication information and the first power parameter.
  • the obtaining unit 801 is further configured to obtain second information, where the second information is used to enable the terminal device to update the power parameter.
  • the sending unit 803 is further configured to send the second uplink transmission and/or the third uplink transmission.
  • the obtaining unit 801 is further configured to obtain the first path loss reference signal and the second path loss reference signal.
  • the second uplink transmission includes a first power headroom report determined from the first pathloss reference signal
  • the third uplink transmission includes a second power headroom report determined from the second pathloss reference signal.
  • the terminal device shown in FIG. 8 may further include a storage module (not shown in FIG. 8 ), and the storage module stores programs or instructions.
  • the determining unit 802 executes the program or instruction, the terminal device can perform the function of controlling the uplink power in the uplink power control methods shown in FIG. 4-FIG. 7 .
  • FIG. 9 is a second schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device may include a processor 901 .
  • the terminal device may further include a memory 902 and/or a transceiver 903 .
  • the processor 901 is coupled with the memory 902 and the transceiver 903, such as can be connected through a communication bus.
  • the processor 901 is the control center of the terminal device, which may be a processor or a general term for multiple processing elements.
  • the processor 901 is one or more central processing units (central processing units, CPUs), may also be a specific integrated circuit (application specific integrated circuit, ASIC), or is configured to implement one or more of the embodiments of the present application
  • An integrated circuit such as: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA).
  • the processor 901 may execute various functions of the terminal device by running or executing software programs stored in the memory 902 and calling data stored in the memory 902 .
  • the network device 1100 may also include multiple processors, for example, the processor 901 and the processor 904 shown in FIG. 9 .
  • processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more communication devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the memory 902 is used to store the software program for executing the solution of the present application, and is controlled and executed by the processor 901.
  • the memory 902 is used to store the software program for executing the solution of the present application, and is controlled and executed by the processor 901.
  • the processor 901. For the specific implementation, reference may be made to the above method embodiments, which will not be repeated here.
  • the memory 902 may be a read-only memory (ROM) or other type of static storage communication device that can store static information and instructions, a random access memory (RAM) or other type of static storage communication device that can store information. and other types of dynamic storage communication devices for instructions, which may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or Other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage communication device, or capable of being used to carry or store desired in the form of instructions or data structures program code and any other medium that can be accessed by a computer, without limitation.
  • the memory 902 may be integrated with the processor 901, or may exist independently, and be coupled to the processor 901 through an input/output port (not shown in FIG. 9) of the terminal device, which is not specifically limited in this embodiment of the present application.
  • the transceiver 903 is used for communication with other terminal devices.
  • the terminal device is a terminal device, and the transceiver 903 may be used to communicate with a network device or communicate with another terminal device.
  • the terminal device is a network device, and the transceiver 903 may be used to communicate with the terminal device or communicate with another network device.
  • transceiver 903 may include a receiver and a transmitter (not shown separately in FIG. 9). Among them, the receiver is used to realize the receiving function, and the transmitter is used to realize the sending function.
  • the transceiver 903 may be integrated with the processor 901, or may exist independently, and be coupled to the processor 901 through an input/output port (not shown in FIG. 9 ) of the terminal device, to which this embodiment of the present application There is no specific limitation.
  • FIG. 10 is a first schematic structural diagram of a network device provided by an embodiment of the present application.
  • the network device includes: a sending unit 1001 , a receiving unit 1002 , and a determining unit 1003 .
  • FIG. 10 only shows the main components of the network device.
  • the network device can be applied to the communication system shown in FIG. 3 or FIG. 4 to perform the function of controlling the uplink power in the uplink power control methods shown in FIGS. 4-7 .
  • the sending unit 1001 is configured to send a first power parameter to a terminal device, where the first power parameter includes at least one of the following: a power offset, and a path loss compensation factor.
  • the receiving unit 1002 is configured to receive the first uplink transmission, where the transmit power of the first uplink transmission is determined according to the first power parameter.
  • the sending unit 1001 is specifically configured to send first indication information to the terminal device, where the first indication information is used to indicate the first power parameter; and send first information to the terminal device, where the first information is used to indicate the first indication information A mapping relationship with the second power parameter; sending a media access control unit to the terminal device, where the media access control unit is used to indicate the mapping relationship between the first indication information and the first power parameter.
  • the sending unit 1001 is further configured to send second information, where the second information is used to enable the terminal device to update the power parameter.
  • the receiving unit 1002 is further configured to receive the second uplink transmission, and obtain one or more measurement values of the second uplink transmission.
  • the determining unit 1003 is configured to determine the first power parameter according to one or more measurement values of the second uplink transmission.
  • the receiving unit 1002 is further configured to acquire the measurement value of the second uplink transmission and the measurement value of the third uplink transmission.
  • the determining unit 1003 is further configured to determine the first power parameter according to the measurement value of the second uplink transmission and the measurement value of the third uplink transmission.
  • the receiving unit 1002 is further configured to acquire the transmit power of the second uplink transmission and the transmit power of the third uplink transmission.
  • the determining unit 1003 is further configured to determine the first power parameter according to the transmit power of the second uplink transmission and the transmit power of the third uplink transmission.
  • the receiving unit 1002 is further configured to acquire the first uplink path loss corresponding to the second uplink transmission and the second uplink path loss corresponding to the third uplink transmission.
  • the determining unit 1003 is further configured to determine the first power parameter according to the first uplink path loss and the second uplink path loss.
  • the measured value of the uplink transmission is the received power of the uplink shared channel; or, the received power of the demodulation reference signal of the uplink transmission.
  • the sending unit 1001 is further configured to send the first path loss reference signal and the second path loss reference signal.
  • the network device shown in FIG. 10 may further include a storage module (not shown in FIG. 10 ), and the storage module stores programs or instructions.
  • the determining unit 1003 executes the program or instruction, the network device can perform the function of controlling the uplink power in the uplink power control method shown in FIG. 4-FIG. 7 .
  • FIG. 11 is a second schematic structural diagram of a network device according to an embodiment of the present application.
  • the network device may be a terminal device or a network device, or may be a chip (system) or other components or assemblies that can be provided in the terminal device or the network device.
  • the network device may include a processor 1101 .
  • the network device may further include a memory 1102 and/or a transceiver 1103 .
  • the processor 1101 is coupled with the memory 1102 and the transceiver 1103, such as can be connected through a communication bus.
  • the processor 1101 is the control center of the network device, which may be one processor, or may be a general term for multiple processing elements.
  • the processor 1101 is one or more central processing units (CPUs), may also be a specific integrated circuit (application specific integrated circuit, ASIC), or is configured to implement one or more embodiments of the present application
  • An integrated circuit such as: one or more microprocessors (digital signal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA).
  • the processor 1101 may execute various functions of the network device by running or executing software programs stored in the memory 1102 and calling data stored in the memory 1102 .
  • the network device may also include multiple processors, for example, the processor 1101 and the processor 1104 shown in FIG. 11 .
  • processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU).
  • a processor herein may refer to one or more communication devices, circuits, and/or processing cores for processing data (eg, computer program instructions).
  • the memory 1102 is used to store the software program for executing the solution of the present application, and is controlled and executed by the processor 1101. For the specific implementation, refer to the above method embodiments, which will not be repeated here.
  • the memory 1102 may be a read-only memory (ROM) or other type of static storage communication device that can store static information and instructions, a random access memory (RAM) or other type of static storage communication device that can store information and other types of dynamic storage communication devices for instructions, which may also be electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or Other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage communication device, or capable of being used to carry or store desired in the form of instructions or data structures program code and any other medium that can be accessed by a computer, without limitation.
  • the memory 1102 may be integrated with the processor 1101, or may exist independently, and be coupled to the processor 1101 through an input/output port (not shown in FIG. 11 ) of a network device, which is not specifically limited in this embodiment of the present application.
  • the transceiver 1103 is used for communication with other network devices.
  • the network device is a terminal device, and the transceiver 1103 may be used to communicate with the network device or communicate with another terminal device.
  • the network device is a network device, and the transceiver 1103 may be used to communicate with a terminal device or communicate with another network device.
  • the transceiver 1103 may include a receiver and a transmitter (not separately shown in FIG. 11 ). Among them, the receiver is used to realize the receiving function, and the transmitter is used to realize the sending function.
  • the transceiver 1103 may be integrated with the processor 1101, or may exist independently, and be coupled to the processor 1101 through an input/output port (not shown in FIG. 11) of a network device, to which this embodiment of the present application There is no specific limitation.
  • processors in the embodiments of the present application may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), dedicated integrated Circuit (application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Fetch memory
  • direct memory bus random access memory direct rambus RAM, DR RAM
  • the above embodiments may be implemented in whole or in part by software, hardware (eg, circuits), firmware, or any other combination.
  • the above-described embodiments may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server or data center by wire (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that contains one or more sets of available media.
  • the usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media.
  • the semiconductor medium may be a solid state drive.
  • At least one means one or more, and “plurality” means two or more.
  • At least one item(s) below” or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s).
  • at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .
  • the size of the sequence numbers of the above-mentioned processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, and should not be dealt with in the embodiments of the present application. implementation constitutes any limitation.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the conventional technology or the part of the technical solution.
  • the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk and other media that can store program codes .

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de la présente demande concernent un procédé et un dispositif de commande de puissance de liaison montante, qui se rapportent au domaine de la technologie de communication et sont capables de commander la puissance de transmission en liaison montante d'un dispositif terminal, ce qui permet d'éviter une interférence du dispositif terminal sur d'autres dispositifs. La solution spécifique comprend un dispositif terminal, capable d'acquérir un premier paramètre de puissance, qui détermine une première puissance de transmission en fonction du premier paramètre de puissance, le premier paramètre de puissance comprenant un décalage de puissance et/ou un facteur de compensation de perte de trajet. Ensuite, le dispositif terminal peut envoyer une première transmission en liaison montante en utilisant la première puissance de transmission.
PCT/CN2020/119756 2020-09-30 2020-09-30 Procédé et dispositif de commande de puissance de liaison montante WO2022067823A1 (fr)

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CN202080105657.8A CN116235566A (zh) 2020-09-30 2020-09-30 一种上行功率控制方法及设备

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