WO2019192336A1 - Procédé, appareil et système de commande de puissance - Google Patents

Procédé, appareil et système de commande de puissance Download PDF

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Publication number
WO2019192336A1
WO2019192336A1 PCT/CN2019/079231 CN2019079231W WO2019192336A1 WO 2019192336 A1 WO2019192336 A1 WO 2019192336A1 CN 2019079231 W CN2019079231 W CN 2019079231W WO 2019192336 A1 WO2019192336 A1 WO 2019192336A1
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WIPO (PCT)
Prior art keywords
ssb
initial target
received power
target received
carrier
Prior art date
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PCT/CN2019/079231
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English (en)
Chinese (zh)
Inventor
刘哲
周国华
徐舟
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华为技术有限公司
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Publication of WO2019192336A1 publication Critical patent/WO2019192336A1/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
    • H04W52/02—Power saving arrangements
    • 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
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • 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
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • 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
    • 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 relates to the field of communications technologies, and in particular, to a power control method, apparatus, and system.
  • a power control method is proposed. For example, when the network device and the terminal perform uplink communication, in order to reduce interference between uplink data sent by different terminals to the network device, power control may be performed on uplink channels of different terminals, for example, an uplink channel that can be sent by different terminals. The received power on the network device side is approximately equal.
  • the power control method can reduce the interference between different data, so as to ensure the correct receiving rate of each data. Therefore, how to improve the efficiency of power control is worth studying.
  • the present application provides a power control method, apparatus, and system, which are intended to improve the success rate when a terminal accesses a network device, or save power consumption of the terminal during the access process.
  • the present application provides a power control method, including: receiving, for one SSB of a plurality of synchronization signal blocks SSB, an initial target received power configuration corresponding to the one SSB, wherein the one The initial target received power corresponding to the SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random access channel (PRACH) transmitted on the SUL carrier.
  • PRACH physical random access channel
  • the initial target received power configuration corresponding to the one SSB includes: an initial target received power corresponding to the one SSB, or an initial target received power offset corresponding to the one SSB, where the The initial target received power offset corresponding to one SSB is the offset of the initial target received power corresponding to the one SSB from the carrier-level initial target received power.
  • an initial target received power configuration corresponding to the one SSB corresponds to the SUL carrier, and the SUL carrier is included in multiple SUL carriers.
  • the present application provides a power control method, including: transmitting, for one SSB of a plurality of synchronization signal blocks SSB, an initial target received power configuration corresponding to the one SSB, where the one The initial target received power corresponding to the SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random access channel (PRACH) transmitted on the SUL carrier.
  • PRACH physical random access channel
  • the description of the initial target received power configuration corresponding to the one SSB is the same as that in the first aspect, and details are not described herein again.
  • the present application provides an apparatus, where the apparatus includes a communication module, configured to receive an initial target received power configuration corresponding to the one SSB for one SSB of the plurality of synchronization signal blocks SSB, where The initial target received power corresponding to the one SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random connection in the SUL carrier transmission.
  • the transmit power of the incoming channel PRACH configured to receive an initial target received power configuration corresponding to the one SSB for one SSB of the plurality of synchronization signal blocks SSB, where The initial target received power corresponding to the one SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random connection in the SUL carrier transmission.
  • the transmit power of the incoming channel PRACH configured to receive an initial target
  • the apparatus further includes a processing module, configured to determine an initial target received power corresponding to the one SSB according to an initial target received power configuration corresponding to the one SSB, according to the one The downlink measurement amount corresponding to the SSB and the initial target reception power determine the transmission power of the PRACH transmitted on the SUL carrier.
  • the description of the initial target received power configuration corresponding to the one SSB is the same as that in the first aspect, and details are not described herein again.
  • the present application provides an apparatus, where the apparatus includes a communication module, configured to send an initial target received power configuration corresponding to the one SSB to one SSB of the plurality of synchronization signal blocks SSB, where The initial target received power corresponding to the one SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random connection in the SUL carrier transmission.
  • the transmit power of the incoming channel PRACH configured to send an initial target received power configuration corresponding to the one SSB to one SSB of the plurality of synchronization signal blocks SSB, where The initial target received power corresponding to the one SSB is configured to determine an initial target received power corresponding to the one SSB, and the downlink measured quantity and the initial target received power corresponding to the one SSB are used to determine a physical random connection in the SUL carrier transmission.
  • the transmit power of the incoming channel PRACH configured to send an initial target
  • the apparatus further includes a processing module, configured to generate an initial target received power configuration corresponding to the one SSB.
  • the description of the initial target received power configuration corresponding to the one SSB is the same as that in the first aspect, and details are not described herein again.
  • the present application provides an apparatus that is capable of implementing one or more of the first aspect and various possible implementations of the first aspect.
  • This function can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the apparatus includes a processor, a memory, and a communication interface. Wherein the memory is coupled to the processor, the processor executes instructions stored in the memory; the processor is coupled to the communication interface, and the processor transmits and/or receives signals via the communication interface.
  • the apparatus includes a processor and a memory. Therein, the memory is coupled to a processor that executes instructions stored in the memory; the processor generates and transmits signals, and/or receives and processes signals.
  • the processor is configured to receive and process an initial target received power configuration corresponding to the one SSB, where the initial target received power corresponding to the one SSB And configured to determine an initial target received power corresponding to the one SSB, where the downlink measurement amount and the initial target received power corresponding to the one SSB are used to determine a transmit power of a physical random access channel PRACH transmitted on the SUL carrier.
  • the processor is further configured to determine, according to an initial target received power configuration corresponding to the one SSB, an initial target received power corresponding to the one SSB, according to a downlink measurement quantity corresponding to the one SSB.
  • the initial target received power determines the transmit power of the PRACH transmitted on the SUL carrier.
  • the description of the initial target received power configuration corresponding to the one SSB is the same as that in the first aspect, and details are not described herein again.
  • the present application provides an apparatus capable of implementing one or more of the second aspect and the possible implementations of the second aspect.
  • This function can be implemented in the form of hardware, software or hardware plus software.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the apparatus includes a processor, a memory, and a communication interface. Wherein the memory is coupled to the processor, the processor executes instructions stored in the memory; the processor is coupled to the communication interface, and the processor transmits and/or receives signals via the communication interface.
  • the apparatus includes a processor and a memory. Therein, the memory is coupled to a processor that executes instructions stored in the memory; the processor generates and transmits signals, and/or receives and processes signals.
  • the processor is configured to generate and send an initial target received power configuration corresponding to the one SSB, where the initial target received power corresponding to the one SSB And configured to determine an initial target received power corresponding to the one SSB, where the downlink measurement amount and the initial target received power corresponding to the one SSB are used to determine a transmit power of a physical random access channel PRACH transmitted on the SUL carrier.
  • the description of the initial target received power configuration corresponding to the one SSB is the same as that in the first aspect, and details are not described herein again.
  • the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform one or more of the first aspect and the various possible implementations of the first aspect.
  • the present application provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform one or more of the second aspect and the possible implementations of the second aspect.
  • the present application provides a computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform one or more of the first aspect and various possible implementations of the first aspect.
  • the present application provides a computer readable storage medium comprising instructions which, when executed on a computer, cause the computer to perform one or more of the second aspect and various possible implementations of the second aspect.
  • the embodiment of the present application provides a chip system, including a processor, and a memory, for implementing one or more of the first aspect and each possible implementation of the first aspect.
  • the embodiment of the present application provides a chip system including a processor, and may further include a memory for implementing one or more of the second aspect and each possible implementation of the second aspect.
  • the present application provides a communication system comprising the apparatus of any of the third or third possible implementations, and any of the possible implementations of the fourth or fourth aspect The device described.
  • the present application provides a communication system comprising the apparatus of any of the fifth or fifth possible implementations, and any of the possible implementations of the sixth or sixth aspect The device described.
  • FIG. 1 is a diagram showing an example of a process for a UE to access a base station according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of an LTE-NR co-site deployment scenario provided by an embodiment of the present application
  • FIG. 3 is a diagram showing an example of a power control method provided by an embodiment of the present application.
  • FIG. 4 is a diagram showing an example of a cell provided by an embodiment of the present application.
  • FIG. 5 is a diagram showing an example of a process for a UE to access a base station according to an embodiment of the present application
  • FIG. 6 is a diagram showing an example of the structure of an apparatus provided by an embodiment of the present application.
  • FIG. 7 is a diagram showing an example of the structure of an apparatus provided by an embodiment of the present application.
  • FIG. 8 is a diagram showing an example of the structure of an apparatus provided by an embodiment of the present application.
  • FIG. 9 is a diagram showing an example of the structure of an apparatus provided by an embodiment of the present application.
  • the technical solutions provided by the embodiments of the present application can be applied to various communication systems.
  • the technical solution provided by the embodiments of the present application may be applied to a communication system supporting multiple beams or a communication system supporting supplementary uplink frequency (SUL), for example, may be applied to: fifth generation mobile communication (the fifth Generation, 5G) systems, long term evolution (LTE) systems and future communication systems.
  • 5G can also be called new radio (NR).
  • NR and LTE are taken as an example for description, which does not constitute a limitation of the application scenario of the technical solution provided by the embodiment of the present application.
  • the technical solution provided by the embodiment of the present application can be applied to wireless communication between communication devices.
  • the communication device may include a network device and a terminal device, and the network device may also be referred to as a network side device.
  • the wireless communication between the communication devices may include wireless communication between the network device and the terminal device, wireless communication between the network device and the network device, and wireless communication between the terminal device and the terminal device.
  • wireless communication may also be simply referred to as "communication”
  • the term “communication” may also be described as "data transmission”, “signal transmission”, “information transmission” or “transmission” and the like.
  • the terminal device in the embodiment of the present application may also be referred to as a terminal, and may be a device having a wireless transceiver function, which may be deployed on land, including indoor or outdoor, handheld or on-board, or may be deployed on the water surface (eg, Ships, etc.); can also be deployed in the air (such as airplanes, balloons, satellites, etc.).
  • the terminal device may be a user equipment (UE).
  • the UE includes a handheld device, an in-vehicle device, a wearable device, or a computing device having a wireless communication function.
  • the UE can be a mobile phone, a tablet, or a computer with wireless transceiving capabilities.
  • the terminal device may also be a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in an unmanned vehicle, a wireless terminal in telemedicine, and an intelligent device.
  • the device for implementing the function of the terminal may be a terminal, or may be a device capable of supporting the terminal to implement the function, such as a chip system.
  • the device that implements the function of the terminal is a terminal, and the terminal is a UE as an example, and the technical solution provided by the embodiment of the present application is described.
  • the network device involved in the embodiment of the present application includes a base station (BS), and may be a device deployed in the radio access network to perform wireless communication with the terminal.
  • the base station may have various forms, such as a macro base station, a micro base station, a relay station, and an access point.
  • the base station in the embodiment of the present application may be a base station in the 5G or a base station in the LTE, where the base station in the 5G may also be referred to as a transmission reception point (TRP) or a gNB.
  • TRP transmission reception point
  • the device for implementing the function of the network device may be a network device, or may be a device capable of supporting the network device to implement the function, such as a chip system.
  • the device that implements the function of the network device is a network device, and the network device is a base station as an example, and the technical solution provided by the embodiment of the present application is described.
  • a base station can manage at least one cell, and one cell can include an integer number of UEs, and the base station and the UE can communicate in the cell.
  • the communication between the base station and the UE may include at least one of the following: the base station and the UE perform uplink communication, that is, the UE sends data to the base station through the uplink channel, and the base station receives data sent by the UE; the base station and the UE perform downlink communication, that is, the base station. The data is transmitted to the UE through the downlink channel, and the UE receives the data sent by the base station.
  • At least one may also be described as one or more, and may also be described as a positive integer.
  • the plurality may be two, three, four or more, and the application does not limit the application.
  • an integer number may be zero or a positive integer.
  • the power of the uplink channel can be controlled.
  • the power of the uplink channel of the different UEs received by the base station is approximately the same, so that interference between uplink data of different UEs can be reduced.
  • the uplink channel may include a physical random access channel (PRACH).
  • PRACH physical random access channel
  • the UE may first access the base station, and the PRACH is used to carry the access preamble sent by the UE to the base station in the access process, so that the base station can detect the access. UE.
  • FIG. 1 is a schematic diagram of a process of a UE accessing a base station.
  • a process in which a UE accesses a base station may also be referred to as an access procedure.
  • the UE transmits an access preamble to the base station through the PRACH.
  • the UE may determine an access preamble from the at least one available access preamble, and send the determined access preamble to the base station through the PRACH.
  • the base station sends message 2 (message 2, Msg2) to the UE.
  • the base station After receiving the access preamble, the base station sends a message 2 to the UE, where the message 2 includes an access preamble identifier of the access preamble received by the base station.
  • the UE receives the message 2. If the access preamble corresponding to the access preamble identifier in the message 2 and the access preamble sent by the UE to the base station are the same, the UE considers that the access preamble sent by the UE may have been received by the base station.
  • the UE considers that the access preamble sent by the UE has been used by the base station. receive. If the access type is the contention access, if the access preamble corresponding to the access preamble identifier in the message 2 and the access preamble sent by the UE to the base station are the same, the UE considers that the access preamble sent by the UE may have been received by the base station or may not be Received by the base station.
  • step 101 multiple UEs may send the same access preamble to the base station through the PRACH, that is, an access conflict of multiple UEs occurs; in step 102, the multiple UEs The message 2 may be received.
  • the UE cannot determine whether the access preamble received by the base station is an access preamble sent by itself or an access preamble sent by other UEs, that is, the UE cannot determine whether the access preamble sent by the UE is used by the base station. received.
  • the base station and the UE can perform the transmission of message 3 (message 3, Msg3) and message 4 (message 4, Msg4) for contention resolution, that is, the base station and the UE pass the message 3 and Message 4 further determines which access preamble the base station receives as the access preamble.
  • message 3 messagesage 3, Msg3
  • message 4 messagesage 4, Msg4
  • a wireless communication system such as NR
  • SUL is introduced in order to improve uplink coverage or increase uplink transmission rate.
  • the base station and the UE can communicate using frequency domain resources.
  • the NR can support the frequency band below 6 GHz to the frequency band of 60 GHz
  • the LTE can support the frequency band below 3 GHz.
  • LTE is deployed in a lower frequency band
  • the center frequency of the LTE carrier is 1.8 GHz (1.8 GHz carrier)
  • the center frequency of the NR carrier For 3.5 GHz (3.5 GHz carrier)
  • the uplink coverage of NR may be limited due to the higher path frequency, the larger the path loss, and the limited uplink transmit power of the UE.
  • the NR uplink transmission and the LTE uplink transmission can share the 1.8 GHz carrier to improve the uplink coverage of the NR, that is, the LTE system can
  • the LTE uplink transmission is performed on the 1.8 GHz carrier, and the NR system can perform NR uplink transmission on the 1.8 GHz carrier.
  • the carrier shared by the NR uplink transmission and the LTE uplink transmission may be referred to as an NR SUL resource, an NR SUL carrier, a SUL resource, or a SUL carrier, such as the above 1.8 GHz carrier; NR uplink transmission and LTE.
  • a carrier that does not share uplink transmission may be referred to as an NR carrier, such as the 3.5 GHz carrier described above.
  • the SUL carrier and the NR carrier may correspond to one NR cell.
  • an integer number of SUL carriers may be included in one NR cell.
  • the frequency of the NR carrier may also be equal to or smaller than the frequency of the SUL carrier.
  • the uplink resource is increased by introducing the SUL carrier, and the NR uplink transmission rate can be improved.
  • the SUL carrier is not limited to the application scenario of the embodiment of the present application.
  • the SUL carrier in the embodiment of the present application may be extended to other first communication systems to the second communication system. Carrier sharing.
  • the UE supporting the SUL in the cell may send the PRACH to the base station through the NR carrier of the cell or through the SUL carrier of the cell.
  • the UE supporting SUL in the cell may determine a carrier for transmitting the PRACH according to the downlink measurement amount and the SUL selection threshold.
  • the downlink measurement quantity may be a downlink reference signal received power (RSRP), for example, a synchronization signal block (SSB) RSRP (SSB-RSRP), and a channel state information reference signal (channel state information reference signal).
  • RSRP downlink reference signal received power
  • SSB synchronization signal block
  • SSB-RSRP channel state information reference signal
  • CSI-RSRP CSI-RSRP
  • CRS cell specific reference signal
  • DMRS downlink demodulation reference signal
  • the UE may send a PRACH to the base station through the SUL carrier of the cell; if the estimated downlink RSRP of the UE is greater than or equal to the SUL selection threshold SUL- RSRP, the UE may send a PRACH to the base station through the NR carrier of the cell.
  • the cell For a NR cell, if the cell is included SUL carrier, the cell supports the SUL UE PRACH is transmitted to the base station by NR carrier of the cells or by SUL carrier of the cell, when PRACH power control can be determined according to P o The transmission power of the PRACH.
  • P o is the initial target received power of the PRACH, and the data type thereof may be a real number, and the unit is dBm (milliwatt).
  • P o may be a parameter configured by the base station for the UE by signaling.
  • the signaling transmitted between the base station and the UE may be high layer signaling or physical layer signaling.
  • the high layer signaling may be radio resource control (RRC) signaling, broadcast message, system message or medium access control (MAC) control element (CE).
  • the physical layer signaling may be the signaling carried by the physical control channel or the signaling carried by the physical data channel, where the physical control channel may be a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (enhanced physical control channel).
  • DCI downlink control information
  • the physical control channel may also be a physical sidelink control channel, and the signaling carried by the physical secondary link control channel may also be referred to as side link control information (SCI).
  • the transmit power of the PRACH may be determined according to P o based on various power control methods.
  • a specific power control method is used as an example, and the method does not constitute a limitation of the technical solution provided by the embodiment of the present application.
  • the LTE-NR co-site deployment scenario that is, the base station in FIG. 2 supports LTE and NR.
  • the SUL is supported in the NR
  • the base station supports multiple antennas
  • the base station manages the cell c
  • the cell c has UE1 and UE2
  • the base station and the UE can communicate through the beam 1 and the beam 2 in the cell c.
  • UE1 and UE2 support SUL, and beam 1 may correspond to NR carrier (for example, a carrier with a center frequency of 3.5 GHz) and a SUL carrier (for example, a carrier with a center frequency of 1.8 GHz), and UE1 may pass the beam.
  • NR carrier for example, a carrier with a center frequency of 3.5 GHz
  • SUL carrier for example, a carrier with a center frequency of 1.8 GHz
  • UE1 may pass the beam.
  • 1 performing NR uplink communication or downlink communication with the base station on the NR carrier UE1 and UE2 may also perform NR uplink communication with the base station on the SUL carrier through beam 1;
  • beam 2 corresponds to the NR carrier (for example, carrier with a center frequency of 3.5 GHz) ), UE2 can perform NR uplink communication or downlink communication with the base station on the NR carrier through the beam 2.
  • one beam may correspond to one antenna port. Therefore, beam 1 may also be described as antenna port 1, and beam
  • a UE in the NR cell c such as UE1 or UE2 it may send a PRACH to the base station through the NR carrier of the cell or through the SUL carrier of the cell.
  • the UE PRACH transmission may be determined based on the initial transmit power of the PRACH target received power of the PRACH P o.
  • the UE may determine the expected target received power P PRACH, target, f, c of the PRACH according to the P o of the cell c according to formula (1) , and may be according to formula (2) according to P PRACH, target, f , c determines the transmit power of PRACH P PRACH,f,c (i):
  • P CMAX, f, c ( i) is a UE in the cell c carrier f (e.g. NR carrier or SUL carrier) maximum transmission power when performing uplink transmission, Its data type can be a real number in dBm (milliwatts).
  • PL f,c (i) is a downlink path loss estimated for the carrier f of the cell c.
  • the UE may estimate the downlink reference signal transmitted in the NR downlink carrier (eg, 3.5 GHz) of the cell c to obtain the next
  • the data type of the line path loss PL f,c (i), PL f,c (i) may be a real number in dB.
  • the transmission time unit may include a positive integer number of symbols, a slot, a mini-slot or a sub-slot, a subframe, and a sub-subframe. , radio frame, transmission time interval (TTI) and other transmission time units commonly used in the field.
  • TTI transmission time interval
  • the deltaPreamble is an adjustment quantity, and the data type thereof may be a real number in units of dB.
  • the deltaPreamble may be independently configured for various access preamble formats, wherein one access preamble format corresponds to the set ⁇ A value of a subcarrier spacing for transmitting an access preamble, a time domain length of a symbol for transmitting an access preamble, a sequence length of an access preamble, or a value corresponding to a subset of the set.
  • the preambleTransmissionConter is the number of transmissions of the access preamble.
  • the value of the preambleTransmissionConter is n when the nth transmission access preamble is sent, and n is a positive integer.
  • n is 1, 2, 3 or 4, etc.
  • the powerRampingStep is a power climbing factor, which can be used to increase the transmission power of the access preamble as the number of access preamble transmissions increases, thereby improving the probability of successful access.
  • the data type of the powerRampingStep can be a real number in units of dB.
  • the uplink path loss of the carrier transmitting the PRACH is approximately equal to PL f,c (i)
  • the power of the PRACH received by the base station is approximately P PRACH,f,c (i)-PL f,c (i )
  • the power of the PRACH received by the base station is approximately the expected target received power P PRACH, target, f, c , so that the UE can ensure that the PRACH is correctly received by using the reasonable PRACH transmit power.
  • a PRACH power control method based on carrier frequency compensation is proposed.
  • P o level parameter may be a carrier, that can independently NR carrier and the carrier SUL configuration values P o to compensate NR carrier according to the estimated PL f, c (i) for the carrier SUL In the power control of the PRACH, the path loss introduced due to the frequency difference between the NR carrier and the SUL carrier.
  • the value of P o in the formula (1) is the value of P o configured for the NR carrier; when the UE passes the SUL When the carrier transmits the PRACH and determines the PRACH according to the formula (1) and the formula (2), the value of P o in the formula (1) is the value of P o configured for the SUL carrier.
  • the PRACH power control method based on carrier frequency compensation can only compensate the path loss difference caused by the carrier frequency difference, and cannot compensate the path loss difference caused by the antenna gain difference. Therefore, the reception quality of the PRACH cannot be guaranteed and the UE2 cannot be guaranteed in the SUL.
  • the antenna gain difference between the beam 2 for estimating PL f,c (i) and the beam 1 corresponding to the SUL carrier for transmitting the PRACH can be described as the antenna gain P Ant,1 and the antenna gain P Ant, the difference between 2 .
  • P Ant,1 can be shown in Figure 2 as the distance from point A on beam 2 to point B on beam 2 in direction 2
  • P Ant, 2 can be shown as beam 1 in Figure 2
  • the direction 1 is the direction in which the base station points to the UE1
  • the direction 2 is the direction in which the base station points to the UE2.
  • the process shown in FIG. 3 is a power control method provided by the embodiment of the present application, which aims to improve the access success probability of the UE in the SUL scenario or reduce the UE's work. Consumption.
  • the base station sends an initial target received power configuration corresponding to the SSB A to the UE, where the initial target received power configuration corresponding to the SSB A is used to determine the SSB.
  • the initial target received power corresponding to A, the downlink measured quantity corresponding to SSB A, and the initial target received power corresponding to SSB A are used to determine the transmit power of the PRACH transmitted on the SUL carrier.
  • the UE receives an initial target received power configuration corresponding to the SSB A, where the initial target received power configuration corresponding to the SSB A is used to determine an initial target received power corresponding to the SSB A.
  • the downlink measurement amount corresponding to the SSB A and the initial target reception power corresponding to the SSB A are used to determine the transmission power of the PRACH transmitted on the SUL carrier.
  • the technical features in the technical features may be distinguished by “1”, “2”, “A”, “B”, and “C”, etc., the "1", There is no order or size order between the technical features described by “2”, “A”, “B”, and “C”.
  • the SSB involved in the embodiment of the present application is sent by the base station to the UE, and the SSB may include one or more of the following information: a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast. Physical broadcast channel (PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH Physical broadcast channel
  • the PSS and the SSS may be used to determine a physical cell identity (PCID), and may also be used for UE to obtain downlink synchronization with the base station;
  • the PBCH may be used to configure part of system information or used to configure cell level parameters, such as PBCH. Can be used to configure the system frame number and / or used to configure the SSB index.
  • the base station may send one or more SSBs to the UE.
  • one SSB may correspond to one SSB index, and one SSB may correspond to one beam.
  • the different SSBs may correspond to the same beam or may correspond to different beams, which is not limited in this application.
  • a beam can be a physical beam or a logical beam equivalent to multiple physical beams, and one beam can correspond to one antenna port.
  • one physical beam may be a beam formed by at least one antenna.
  • the index of the SSB can be indicated by the PBCH in the SSB.
  • Figure 4 shows an example of a multi-beam cell. As shown in FIG.
  • the base station can manage three cells of cell one, cell two, and cell three, and the coverage of each cell is about 120°.
  • the base station may send four SSBs, and one of the four SSBs corresponds to one beam, and the four SSBs are adopted.
  • the corresponding 4 beams cover the cell.
  • the base station may send multiple SSBs to the UE, and the base station sends the initial target receiving power configuration corresponding to each SSB in the multiple SSBs to the UE.
  • the initial target received power configuration corresponding to each SSB is used to determine an initial target received power corresponding to each SSB.
  • the downlink measurement corresponding to the SSB and the initial target received power corresponding to the SSB are used to determine the transmit power of the PRACH transmitted on the SUL carrier.
  • the UE may determine the downlink measurement according to the SSB and the initial target received power corresponding to the SSB. The transmission power of the PRACH.
  • the initial target received power configuration is independently configured for each beam or each SSB, and the difference between the beams can be considered, thereby compensating for the path loss difference caused by the antenna gain difference, and thus Ensuring UE2's access success rate on the SUL carrier or ensuring that UE2 transmits PRACH on the SUL carrier with reasonable power.
  • beam 1 corresponds to SSB 1
  • beam 2 corresponds to SSB 2
  • initial target received power corresponding to SSB 1 is The initial target received power corresponding to SSB 2 is If UE2 detects SSB2 in FIG. 2, when UE2 transmits a PRACH to the base station on the SUL carrier, UE2 may receive the initial target receiving power corresponding to SSB2.
  • P o in the formula (1) the transmission power of the PRACH is determined according to the formula (1) and the formula (2).
  • UE2 may be according to formula (3) according to Determining the PRACH desired target received power P PRACH, target, f, c , may be as shown in equation (4) P PRACH, target, f, c determine a transmit power of the PRACH:
  • the configured initial target received power is a carrier-level parameter, and when it is used in a multi-beam system for transmitting a PRACH on a SUL carrier, the beam corresponding to the SUL carrier cannot be considered and used for performing
  • the path loss between the downlink measured beams may not ensure the UE's access success rate on the SUL carrier, or the UE may not be able to use the reasonable power to transmit the PRACH on the SUL carrier to increase the power consumption of the UE.
  • the configured initial target received power is an SSB level parameter or a beam level parameter, and when it is used for performing power control of the PRACH transmitted on the SUL carrier, the beam and the corresponding beam of the SUL carrier may be considered.
  • the method provided by the embodiment of the present application is not limited to the SUL scenario, for example, it may also be applied to other scenarios in which the uplink and downlink beams are inconsistent.
  • a carrier-level NR carrier initial target received power may be configured, and the UE determines the PRACH when the NR carrier sends the PRACH.
  • the transmit power of the PRACH may be configured by the initial target received power of the SUL carrier of the multiple SSBs, that is, the initial target received power in the method of FIG. 3, for determining the transmit power of the PRACH when the SUL carrier transmits the PRACH.
  • the initial target received power configuration corresponding to the SSB may be an initial target received power corresponding to the SSB, or may be an initial target receiving corresponding to the SSB.
  • the carrier-level initial target received power may be the cell initial target received power for the NR carrier, or may be the carrier-level common initial target received power for the SUL carrier.
  • the cell initial target received power of the NR carrier is used to determine the transmit power of the PRACH transmitted on the NR carrier
  • the carrier-level common initial target received power of the SUL carrier is used to determine the transmit power of the PRACH transmitted on the SUL carrier.
  • the carrier-level initial target receiving power may be pre-configured or may be sent by the base station to the UE, which is not limited in this application.
  • signaling carrying the initial target received power configuration can be flexibly designed according to the requirements of the network for signaling overhead. For example, when the network is insensitive to the signaling overhead, the initial target received power configuration corresponding to the SSB may be the initial target received power corresponding to the SSB.
  • the base station side and the UE side may be reduced to determine the initial target received power.
  • the initial target received power configuration corresponding to the SSB may be the initial target received power offset corresponding to the SSB, thereby reducing the signaling overhead.
  • the initial target received power configuration configured by the base station for the UE is the initial target received power offset, for beam 1 and beam 2 shown in FIG. 2, beam 1 corresponds to SSB 1, beam 2 corresponds to SSB 2
  • the base station may send the initial target receiving power offset corresponding to the SSB 1 to the UE.
  • the initial target receive power offset corresponding to SSB 2 The base station may also send a carrier-level initial target received power for the UE. Or pre-configured (predefined) carrier-level initial target received power
  • the UE1 in FIG. 2 detects the SSB1, when the UE1 transmits the PRACH to the base station on the SUL carrier, the UE1 may offset the initial target according to the SSB1. Determine the initial target received power corresponding to SSB1 And the initial target receiving power corresponding to SSB1 As P o in the formula (1), the transmission power of the PRACH is determined according to the formula (1) and the formula (2). Specifically, UE1 may be according to formula (5) according to Determining the expected target received power P PRACH, target, f, c of the PRACH, and determining the transmit power of the PRACH according to the formula (6) according to P PRACH, target, f, c :
  • the UE2 in FIG. 2 detects the SSB2, when the UE2 transmits the PRACH to the base station on the SUL carrier, the UE2 may receive the power offset according to the initial target corresponding to the SSB2. Determine the initial target received power corresponding to SSB2 Initial target receiving power corresponding to SSB2 As P o in the formula (1), the transmission power of the PRACH is determined according to the formula (1) and the formula (2). Specifically, UE2 can be based on formula (7). Determining the expected target received power P PRACH, target, f, c of the PRACH, and determining the transmit power of the PRACH according to the formula (8) according to P PRACH, target, f, c :
  • the signaling when the base station configures the SSB-level initial target received power configuration for the SUL carrier by using signaling, for example, the signaling is referred to as RACH general configuration information RACH-ConfigGeneric, and the RACH general configuration information RACH-ConfigGeneric may be the following A RACH general configuration information RACH-ConfigGeneric to any one of the third RACH general configuration information RACH-ConfigGeneric.
  • the signaling may also be referred to as other names, such as configuration signaling, first signaling, and the like.
  • the first RACH general configuration information RACH-ConfigGeneric RACH-ConfigGeneric:
  • the RACH general configuration information includes at least two initial target received power configurations.
  • the initial target received power configuration corresponds to at least one SSB index
  • one SSB index of the at least one SSB index corresponds to one SSB
  • the at least one SSB index corresponds to At least one SSB
  • the initial target received power is configured as an initial target received power configuration corresponding to the at least one SSB
  • the initial target received power determined according to the initial target received power configuration is an initial target received power corresponding to the at least one SSB.
  • the RACH-ConfigGeneric includes N1 initial target received power configurations preambleReceivedTargetPowerSSB.
  • the initial target received power configuration corresponds to N2 SSB indexes SSBindex
  • the initial target received power is configured to correspond to the N2 SSB indexes.
  • the initial target received power configuration of the N2 SSBs, and the initial target received power preambleReceivedTargetPower determined according to the any one of the initial target received power configurations is the initial target received power of the N2 SSBs corresponding to the N2 SSB indexes.
  • the number of the SSB indexes corresponding to the different initial target receiving power configurations in the N1 initial target receiving power configurations may be the same, and may be different, and is not limited in this application.
  • N1 is an integer greater than or equal to 2
  • N2 is a positive integer.
  • SEQUENCE represents a sequence, for example, SEQUENCE (SIZE (1..N2)) OF SSBindex indicates that the sequence includes from the first to the first N2 SSBindexes have a total of N2 SSBindex;
  • INTEGER represents an integer, for example, INTEGER (-200..-74) represents an integer between -200 and -74.
  • the second RACH general configuration information RACH-ConfigGeneric is the second RACH general configuration information RACH-ConfigGeneric:
  • the RACH general configuration information includes at least two initial target received power configuration indexes, and an initial target received power configuration index may be determined according to one of the at least two initial target received power configuration indexes.
  • An initial target received power configuration index of the two initial target received power configuration indexes where the initial target received power configuration index corresponds to at least one SSB index, and one of the at least one SSB index corresponds to one SSB, the at least one The SSB index corresponds to the at least one SSB, and the initial target received power determined according to the initial target received power configuration index is the initial target received power corresponding to the at least one SSB.
  • the RACH-ConfigGeneric includes N1 initial target received power configuration indexes preambleReceivedTargetPowerIndex, and an initial target received power preambleReceivedTargetPower may be determined according to each initial target received power configuration index.
  • the initial target received power configuration index corresponds to N2 SSB indexes SSBindex, and the initial determined according to the any one of the initial target received power configuration indexes
  • the target received power preambleReceivedTargetPower is the initial target received power of the N2 SSBs corresponding to the N2 SSB indexes.
  • the number of SSB indexes corresponding to different initial target receiving power configuration indexes in the N1 initial target receiving power configuration indexes may be the same, which may be different, and is not limited in this application.
  • N1 is an integer greater than or equal to 2
  • N2 is a positive integer.
  • the third RACH general configuration information RACH-ConfigGeneric is the third RACH general configuration information RACH-ConfigGeneric:
  • the RACH general configuration information includes an initial target received power configuration corresponding to the SSB.
  • the RACH common configuration information includes a corresponding list SSB-preambleReceivedTargetPower-List of the SSB and the initial target received power configuration, configured to configure an initial target received power configuration corresponding to the N3 SSBs.
  • the list includes N3 SSBs and a corresponding configuration SSB-preambleReceivedTargetPower of the initial target received power configuration.
  • N3 is a positive integer.
  • the initial target received power configuration is an initial target received power, and the information may also be described. Replace with the initial target receive power offset.
  • an initial target corresponding to the SSB may be independently configured for each SUL carrier in the multiple SUL carriers.
  • the initial target receiving power configuration corresponding to the SSB of each SUL carrier may be the same or different, and is not limited in this application.
  • the method may be described as: for one SUL carrier A of the plurality of SUL carriers, for one SSB A of the plurality of synchronization signal blocks SSB, the base station transmits an initial target received power configuration corresponding to the SSB A to the UE, where the SSB The initial target received power configuration corresponding to A is used to determine the initial target received power corresponding to SSB A, and the downlink measured quantity corresponding to SSB A and the initial target received power corresponding to SSB A are used to determine the transmit power of the PRACH transmitted on SUL carrier A.
  • the UE receives an initial target received power configuration corresponding to the SSB A, where the initial target received power corresponding to the SSB A
  • the initial target received power corresponding to the SSB A is configured, and the downlink measurement corresponding to the SSB A and the initial target received power corresponding to the SSB A are used to determine the transmit power of the PRACH transmitted on the SUL carrier A.
  • 2 SUL carriers eg, SUL carrier B and SUL carrier C
  • 2 SSBs eg, SSB B and SSB C
  • the base station may send the initial target received power configuration corresponding to the SSB B and the initial target received power configuration corresponding to the SSB B to the UE, where the downlink measurement amount corresponding to the SSB B and the initial target corresponding to the SSB B
  • the received power is used to determine the transmit power when the PRACH is transmitted on the SUL carrier B through the SSB B
  • the downlink measurement amount corresponding to the SSB C and the initial target received power corresponding to the SSB C are used to determine when the PRACH is transmitted on the SUL carrier B through the SSB C. Transmit power.
  • the base station may send the initial target received power configuration corresponding to the SSB B and the initial target received power configuration corresponding to the SSB B to the UE, where the downlink measurement amount corresponding to the SSB B and the initial corresponding to the SSB B
  • the target received power is used to determine the transmit power when the PRACH is transmitted on the SUL carrier C through the SSB B, and the downlink measurement amount corresponding to the SSB C and the initial target received power corresponding to the SSB C are used to determine that the PRACH is transmitted on the SUL carrier C through the SSB C.
  • the transmit power at the time.
  • the base station may send an initial target received power configuration corresponding to the SSB by using a system message carried by a physical layer data channel (for example, a physical downlink shared control channel (PDSCH)) or a PBCH.
  • a physical layer data channel for example, a physical downlink shared control channel (PDSCH)
  • PBCH PBCH
  • the carrier-level power control is taken as an example for description. It should be noted that the method provided by the embodiment of the present application may also be applied to a bandwidth part (BWP) level power control.
  • BWP bandwidth part
  • the base station When the base station and the UE use the frequency domain resources for wireless communication, the base station manages the carrier frequency domain resources, and allocates the frequency domain resources to the UE from the carrier frequency domain resources, so that the base station and the UE can use the allocated frequency domain resources for communication.
  • the carrier frequency domain resource may be a system frequency domain resource, or may be a frequency domain resource that the base station can manage and allocate.
  • the carrier frequency domain resource may be a continuous frequency domain resource, and the carrier frequency domain resource may also be referred to as a carrier.
  • the BWP is a resource in a carrier.
  • the base station configures a BWP for the UE from the carrier, and the base station schedules the UE in the configured BWP.
  • the base station may allocate some or all resources in the configured BWP to the UE for performing communication between the base station and the UE.
  • the BWP configured by the base station for the UE is included in the carrier, and may be a continuous or discontinuous part of the resources in the carrier, or may be all resources in the carrier.
  • the BWP may also be referred to as a bandwidth resource, a frequency domain resource part, a partial frequency domain resource, a frequency resource part, a partial frequency resource, a carrier BWP or other names, which is not limited in this application.
  • the BWP When the BWP is a contiguous resource in the carrier, the BWP may also be referred to as a subband, a narrowband, or other name, which is not limited in this application.
  • each formula corresponding to the formula (2) may be the formula (4), the formula (6), and the formula (8).
  • FIG. 5 is a diagram showing an example of a process for a UE to access a base station according to an embodiment of the present application.
  • the SUL carrier is supported in the cell where the UE is located, and the UE supports the SUL carrier as an example.
  • the base station sends an SSB to the UE, and the UE detects the SSB.
  • frequency domain resources used for data transmission by a base station and a UE may be represented as subcarriers, adjacent to each other.
  • the distance of the carrier can be described as a subcarrier spacing.
  • a plurality of subcarrier intervals are introduced in order to accommodate transmission scene diversity or service diversity.
  • NR can support subcarrier spacings of 7.5 kHz, 15 kHz, 30 kHz, 60 kHz, 120 kHz, and 240 kHz.
  • the base station transmits the SSB to the UE, at least one of the plurality of subcarrier intervals may also be used.
  • the multiple SSBs may be sent in one time window in a time window, and one SSB corresponds to one beam, and different SSBs may correspond to different beams, or may be the same.
  • the beam is not limited in this application.
  • the unit of the length of the time window may be a time unit commonly used in the field, such as seconds, milliseconds, microseconds, frames, subframes, sub-subframes, time slots, fields, mini-slots, symbols, transmission time intervals, or Other time units.
  • the length of the time window is 5 ms as an example.
  • the SSB when the SSB is transmitted using a 15 kHz or 30 kHz subcarrier spacing, at least 4 SSBs are transmitted in a 5 ms window in a frequency band below 3 GHz, the 4 SSBs corresponding to 4 beams, wherein 1 SSB can be mapped to 4 OFDM Symbol; in the 3 GHz to 6 GHz band, up to 8 SSBs can be transmitted in a 5 ms window, and the 8 SSBs correspond to corresponding 8 beams.
  • up to 64 SSBs are transmitted in a 5 ms window, corresponding to 64 beams.
  • the UE detects the SSB in the time window. If the SSB is detected or received, the UE may determine an index of the SSB according to the PBCH in the SSB.
  • the base station sends an initial target received power configuration corresponding to the SSB to the UE, where the initial target received power configuration is used to determine an initial target received power corresponding to the SSB, and the initial target received power corresponding to the SSB and the downlink measurement corresponding to the SSB are used to determine the SUL carrier.
  • the transmitted power of the transmitted PRACH corresponds to the UE receives an initial target received power configuration corresponding to the SSB, the initial target received power configuration is used to determine an initial target received power corresponding to the SSB, and the initial target received power corresponding to the SSB and the downlink measurement corresponding to the SSB are used to determine the SUL carrier transmission.
  • PRACH transmit power
  • the base station when the base station sends multiple SSBs to the UE, the base station may configure, for the multiple SSBs, the initial target received power configuration corresponding to each SSB.
  • the initial target receiving power configurations of different SSBs may be the same or different, and the present application is not limited.
  • the UE sends a PRACH to the base station, and the base station receives the PRACH sent by the UE.
  • the UE For the SSB received by the UE in S501, the UE performs downlink measurement on the downlink signal corresponding to the SSB, and obtains a downlink measurement quantity of the downlink signal.
  • the downlink signal may be the SSB or the downlink reference signal
  • the downlink reference signal may be a cell reference signal (CRS), a demodulation reference signal (DMRS), or a channel state.
  • CRS cell reference signal
  • DMRS demodulation reference signal
  • a downlink reference signal such as a channel state information reference signal (CSI-RS); the downlink measurement quantity may be an RSRP.
  • CSI-RS channel state information reference signal
  • the UE may determine the transmit power of the PRACH according to the initial target received power configuration corresponding to the received SSB, and use the determined PRACH transmission according to the methods or reference S502 involved in FIG.
  • the power transmits a PRACH to the base station on the SUL carrier.
  • the UE can be considered as an edge user in the NR cell, so the transmission quality of the uplink signal between the UE and the base station can be improved by the SUL carrier.
  • the method provided by the embodiment of the present application is introduced from the perspective of interaction between the base station and the UE.
  • the base station and the UE may include a hardware structure and/or a software module, and implement the foregoing functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • One of the above functions is performed in a hardware structure, a software module, or a hardware structure plus a software module, depending on the specific application and design constraints of the technical solution.
  • FIG. 6 is a schematic structural diagram of a device 600 according to an embodiment of the present application.
  • the device 600 can be a UE, and can implement the function of the UE in the method provided by the embodiment of the present application.
  • the device 600 can also be a device that can support the UE to implement the function of the UE in the method provided by the embodiment of the present application.
  • Device 600 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 600 can be implemented by a chip system. In the embodiment of the present application, the chip system may be composed of a chip, and may also include a chip and other discrete devices.
  • the device 600 includes a communication module 602, configured to receive an initial target received power configuration corresponding to the SSB for one SSB of the plurality of synchronization signal blocks SSB, where an initial target received power configuration corresponding to the SSB is used to determine the SSB corresponding
  • the initial target received power, the downlink measured amount corresponding to the SSB and the initial target received power are used to determine the transmit power of the PRACH transmitted on the SUL carrier.
  • Communication module 602 is for device 600 to communicate with other modules, which may be circuits, devices, interfaces, buses, software modules, transceivers, or any other device that can implement communication.
  • the device 600 may further include a processing module 604, configured to determine, according to an initial target received power configuration corresponding to the SSB, an initial target received power corresponding to the SSB according to an SSB of the plurality of synchronization signal blocks SSB, according to the downlink corresponding to the SSB.
  • the measured amount and the initial target received power determine the transmit power of the PRACH transmitted on the SUL carrier.
  • the communication module 602 and the processing module 604 are coupled.
  • the coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units or modules, and may be in an electrical, mechanical or other form for information interaction between devices, units or modules.
  • FIG. 7 is a schematic structural diagram of an apparatus 700 according to an embodiment of the present application.
  • the device 700 can be a base station, and can implement the function of the base station in the method provided by the embodiment of the present application.
  • the device 700 can also be a device that can support the base station to implement the function of the base station in the method provided by the embodiment of the present application.
  • Apparatus 700 can be a hardware structure, a software module, or a hardware structure plus a software module.
  • Device 700 can be implemented by a chip system.
  • the device 700 includes a communication module 702, configured to send an initial target received power configuration corresponding to the SSB to one SSB of the plurality of synchronization signal blocks SSB, where the initial target received power configuration corresponding to the SSB is used to determine the SSB corresponding
  • the initial target received power, the downlink measured amount corresponding to the SSB and the initial target received power are used to determine the transmit power of the PRACH transmitted on the SUL carrier.
  • Communication module 702 is for device 700 to communicate with other modules, which may be circuits, devices, interfaces, buses, software modules, transceivers, or any other device that can implement communication.
  • the device 700 may further include a processing module 704, configured to generate an initial target received power configuration corresponding to the SSB.
  • the communication module 702 and the processing module 704 are coupled.
  • FIG. 8 is a schematic structural diagram of an apparatus 800 according to an embodiment of the present application.
  • the device 800 can be a UE, and can implement the function of the UE in the method provided by the embodiment of the present application.
  • the device 800 can also be a device that can support the UE to implement the function of the UE in the method provided by the embodiment of the present application.
  • the device 800 includes a processing system 802 for implementing or for supporting the UE to implement the functions of the UE in the method provided by the embodiment of the present application.
  • Processing system 802 can be a circuit that can be implemented by a chip system.
  • the processing system 802 includes one or more processors 822, which may be used to implement or support the UE to implement the functions of the UE in the method provided by the embodiment of the present application.
  • Processor 822 may also be used to manage other devices included in processing system 802 when processing system 802 includes other devices than processor 822, which may be, for example, memory 824, bus 826, and One or more of the bus interfaces 828.
  • Processing system 802 may also include one or more memories 824 for storing instructions and/or data. Further, the memory 824 can also be included in the processor 822. If memory 824 is included in processing system 802, processor 822 can be coupled to memory 824. Processor 822 can operate in conjunction with memory 824. Processor 822 can execute the instructions stored in memory 824. When the processor 822 executes the instructions stored in the memory 824, the UE may implement or support the UE to implement the functions of the UE in the method provided by the embodiment of the present application. Processor 822 may also read data stored in memory 824. Memory 824 may also store data obtained by processor 822 when the instructions are executed.
  • the processor may be a central processing unit (CPU), a general-purpose processor network processor (NP), a digital signal processing (DSP), a microprocessor. , a microcontroller, a programmable logic device (PLD), or any combination thereof.
  • the processor can also be any other device having processing functionality, such as a circuit, device, or software module.
  • the memory includes a volatile memory, such as a random-access memory (RAM); the memory may also include a non-volatile memory, such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory may further include a combination of the above types of memories; the memory may further include any other device having a storage function. For example, a circuit, device, or software module.
  • RAM random-access memory
  • the memory may also include a non-volatile memory, such as a fast A flash memory, a hard disk drive (HDD), or a solid-state drive (SSD); the memory may further include a combination of the above types of memories; the memory may further include any other device having a storage function.
  • a circuit, device, or software module may be any other device having a storage function.
  • the processor 822 implements or supports the UE to implement the method provided by the embodiment of the present application, and is configured to receive and process an initial target received power configuration corresponding to the SSB for one SSB of the multiple synchronization signal blocks SSB, where the SSB corresponds to
  • the initial target received power configuration is used to determine an initial target received power corresponding to the SSB, and the downlink measured amount and the initial target received power corresponding to the SSB are used to determine a transmit power of the PRACH transmitted on the SUL carrier.
  • the processor 822 is further configured to determine, according to an initial target received power configuration corresponding to the SSB, an initial target received power corresponding to the SSB according to an initial target received power configuration corresponding to the SSB, according to the downlink measurement quantity and the initial target corresponding to the SSB.
  • the received power determines the transmit power of the PRACH transmitted on the SUL carrier.
  • Processing system 802 can also include a bus interface 828 for providing an interface between bus 826 and other devices.
  • the bus interface can also be called a communication interface.
  • Device 800 may also include a transceiver 806 for communicating over a transmission medium with other communication devices such that other devices in device 800 can communicate with other communication devices.
  • the other device may be the processing system 802.
  • other devices in device 800 may utilize transceiver 806 to communicate with other communication devices to receive and/or transmit corresponding information. It can also be described that other devices in device 800 may receive corresponding information, wherein the corresponding information is received by transceiver 806 over a transmission medium, which may be via bus interface 828 or through bus interface 828 and bus 826.
  • Interacting between transceiver 806 and other devices in device 800; and/or other devices in device 800 may transmit corresponding information, wherein the corresponding information is transmitted by transceiver 806 over a transmission medium, the corresponding The information can be exchanged between the transceiver 806 and other devices in the device 800 via the bus interface 828 or through the bus interface 828 and the bus 826.
  • the device 800 may also include a user interface 804, which is an interface between the user and the device 800, and may be used for information interaction between the user and the device 800.
  • user interface 804 may be at least one of a keyboard, a mouse, a display, a speaker, a microphone, and a joystick.
  • the processing system 802 includes a processor 822, and may also include one or more of a memory 824, a bus 826, and a bus interface 828 for implementing the method provided by the embodiments of the present application. Processing system 802 is also within the scope of this application.
  • FIG. 9 is a schematic structural diagram of an apparatus 900 according to an embodiment of the present application.
  • the device 900 can be a base station, and can implement the function of the base station in the method provided by the embodiment of the present application.
  • the device 900 can also be a device that can support the base station to implement the function of the base station in the method provided by the embodiment of the present application.
  • the apparatus 900 includes a processing system 902 for implementing or for supporting a base station to implement the functions of the base station in the method provided by the embodiment of the present application.
  • Processing system 902 can be a circuit that can be implemented by a chip system.
  • the processing system 902 includes one or more processors 922, which may be used to implement or support the base station to implement the functions of the base station in the method provided by the embodiments of the present application.
  • Processor 922 may also be used to manage other devices included in processing system 902 when processing system 902 includes other devices than processor 922, which may be, for example, memory 924, bus 926, and One or more of the bus interfaces 928.
  • Processing system 902 may also include one or more memories 924 for storing instructions and/or data. Further, the memory 924 may also be included in the processor 922. If processing system 902 includes memory 924, processor 922 can be coupled to memory 924. Processor 922 can operate in conjunction with memory 924. Processor 922 can execute the instructions stored in memory 924. When the processor 922 executes the instructions stored in the memory 924, the base station can implement or support the functions of the base station in the method provided by the embodiment of the present application. Processor 922 may also read data stored in memory 924. Memory 924 may also store data obtained by processor 922 when executing instructions.
  • the processor 922 implements or supports the base station to implement the method provided by the embodiment of the present application, and is configured to generate and send an initial target received power configuration corresponding to the SSB for one SSB of the multiple synchronization signal blocks SSB, where the SSB corresponds to
  • the initial target received power configuration is used to determine an initial target received power corresponding to the SSB, and the downlink measured amount and the initial target received power corresponding to the SSB are used to determine a transmit power of the PRACH transmitted on the SUL carrier.
  • Processing system 902 can also include a bus interface 928 for providing an interface between bus 926 and other devices.
  • the bus interface can also be called a communication interface.
  • Apparatus 900 may also include a transceiver 906 for communicating over a transmission medium with other communication devices such that other devices in device 900 can communicate with other communication devices.
  • the other device may be the processing system 902.
  • other devices in device 900 may utilize transceiver 906 to communicate with other communication devices to receive and/or transmit corresponding information. It can also be described that other devices in device 900 may receive corresponding information, wherein the corresponding information is received by transceiver 906 via a transmission medium, which may be via bus interface 928 or through bus interface 928 and bus 926.
  • Interacting between transceiver 906 and other devices in device 900; and/or other devices in device 900 may transmit corresponding information, wherein the corresponding information is transmitted by transceiver 906 over a transmission medium, the corresponding The information can be exchanged between the transceiver 906 and other devices in the device 900 via the bus interface 928 or through the bus interface 928 and the bus 926.
  • the device 900 may also include a user interface 904, which is an interface between the user and the device 900, possibly for user interaction with the device 900.
  • user interface 904 may be at least one of a keyboard, a mouse, a display, a speaker, a microphone, and a joystick.
  • the processing system 902 includes a processor 922, and may also include one or more of a memory 924, a bus 926, and a bus interface 928 for implementing the method provided by the embodiments of the present application. Processing system 902 is also within the scope of the present application.
  • the module division of the device is a logical function division, and the actual implementation may have another division manner.
  • each functional module of the device may be integrated into one module, or each functional module may exist separately, or two or more functional modules may be integrated into one module.
  • the method provided by the embodiment of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented in software, it 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.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, a network device, a terminal, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, an SSD) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a digital video disc (DVD)
  • a semiconductor medium eg, an SSD

Abstract

La présente invention concerne un procédé, un appareil et un système de commande de puissance. Le procédé comprend : en ce qui concerne un bloc de signal de synchronisation (SSB) d'une pluralité de SSB, un dispositif de réseau envoie, pour un terminal, une configuration de puissance de réception cible initiale correspondant audit SSB. Le terminal détermine, en fonction de la configuration de puissance de réception cible initiale correspondant au SSB, une puissance de réception cible initiale correspondant au SSB, et détermine, en fonction de la quantité de mesure de liaison descendante correspondant au SSB et à la puissance de réception cible initiale, une puissance de transmission d'un canal d'accès aléatoire physique (PRACH), et transmet ledit PRACH à ladite puissance de transmission au moyen d'un support SUL. Le procédé décrit augmente le taux de réussite d'accès ou réduit la consommation de puissance de terminal pendant le processus d'accès.
PCT/CN2019/079231 2018-04-04 2019-03-22 Procédé, appareil et système de commande de puissance WO2019192336A1 (fr)

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