WO2019101204A1 - Système, appareil et procédé de commande de puissance - Google Patents

Système, appareil et procédé de commande de puissance Download PDF

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Publication number
WO2019101204A1
WO2019101204A1 PCT/CN2018/117540 CN2018117540W WO2019101204A1 WO 2019101204 A1 WO2019101204 A1 WO 2019101204A1 CN 2018117540 W CN2018117540 W CN 2018117540W WO 2019101204 A1 WO2019101204 A1 WO 2019101204A1
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WIPO (PCT)
Prior art keywords
signal
information
power control
closed loop
time unit
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PCT/CN2018/117540
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English (en)
Chinese (zh)
Inventor
纪刘榴
任海豹
李元杰
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华为技术有限公司
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Publication of WO2019101204A1 publication Critical patent/WO2019101204A1/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
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • 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
    • 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • 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
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, device, and system for power control.
  • the closed loop power control technology refers to a process in which a base station adjusts the signal transmission power of a terminal device according to the quality of the received signal after receiving the signal transmitted by the terminal device. Specifically, the base station notifies the terminal device to adjust the signal transmission power by transmitting transmission power control (TPC) information to the terminal device.
  • TPC transmission power control
  • the terminal device determines the signal transmission power according to the power spectral density of the signal transmission power and the bandwidth of the PUSCH. Specifically, the terminal device may be based on the following manner. Determine the signal transmission power on the PUSCH:
  • P PUSCH,c (i) is the signal transmission power of the terminal equipment on carrier c and slot i
  • P CMAX,c (i) is the maximum transmission power of the terminal equipment on carrier c and slot i
  • M PUSCH , c (i) is the carrier c, the bandwidth of the PUSCH on the slot i
  • P O_PUSCH, c (i) is the nominal power spectral density of the terminal device on the carrier c, the slot i, used to identify the base station expects to receive
  • ⁇ c (j) is the path loss compensation factor corresponding to the scheduling transmission mode j.
  • PL c is path loss, used to compensate path loss in signal transmission
  • ⁇ TF, c (i) is the modulation mode and code rate of the data
  • the related power offset of the beared signal content (such as whether there is uplink control information or the size of the uplink control information)
  • f c (i) is a closed loop power control parameter.
  • LTE closed loop power control comprises the absolute mode and accumulation mode, wherein in the absolute mode, f c (i) is the value indicated by the TPC; in accumulation mode, f c (i) is the f c (i -1) The accumulated value of the value indicated by the TPC.
  • the above power control mode is not applicable to the scenario of beam switching, and there is a need for a power control method in a communication system suitable for multi-beam transmission.
  • Embodiments of the present application provide a method, apparatus, and system for power control, in order to provide a power control method in a communication system suitable for multi-beam transmission.
  • a method for power control provided by an embodiment of the present application includes:
  • the network device sends the first configuration information to the terminal device, and after receiving the first configuration information from the network device, the terminal device determines, according to the first information, a transmit power of the signal in the first time unit, where the first configuration information is used.
  • a configuration of the first time unit, and the first configuration information includes first information, the first information indicating first resource information of the first signal.
  • the network device since the transmit power of the signal in the first time unit can be determined according to the first information, the network device does not need to add additional signaling to indicate how to determine the transmit power of the signal in the first time unit, and thus Compared with technology, it helps to reduce the overhead of signaling.
  • the first signal is a path loss measurement signal, or a synchronization signal (SS), or a channel state information reference signal (CSI-RS), or a sounding reference signal (sounding reference signal, SRS).
  • SS synchronization signal
  • CSI-RS channel state information reference signal
  • SRS sounding reference signal
  • one manner of determining a transmit power of a signal in the first time unit according to the first information is:
  • the terminal device receives second configuration information from the network device, the second configuration information is used for configuration of the second time unit, and the second configuration information includes second information, the second information indicating second resource information of the first signal; The first information and the second information determine a transmit power of a signal at the first time unit.
  • the transmit power of the signal in the first time unit may be determined according to the first information and the second information in the following manner. :
  • the terminal device determines that the first closed loop power control parameter is 0, or the first closed loop power control parameter is a configuration function includes a function of a first closed loop power control adjustment value, the first closed loop power control parameter is used to determine a transmit power of a signal of the first time unit; and the signal at the first time unit is determined according to the first closed loop power control parameter Transmit power.
  • the terminal device determines that the first closed loop power control parameter is the second closed loop power control parameter and the first configuration information. Included as a function of a first closed loop power control adjustment value, the first closed loop power control parameter is used to determine a transmit power of a signal of the first time unit, and the second closed loop power control parameter is used to determine a transmit power of a signal of the second time unit; The transmit power of the signal at the first time unit is determined based on the first closed loop power control parameter.
  • Another method for determining a transmit power of a signal in the first time unit according to the first information in the embodiment of the present application is:
  • the terminal device receives second configuration information from the network device, the second configuration information is used for configuration of the second time unit, and the second configuration information includes second information, where the second information indicates second resource information of the first signal;
  • the terminal device receives third configuration information from the network device, the third configuration information indicates third resource information of the second signal and is used for configuration of at least two time units; and the second signal has the same or similar spatial information as the first signal relationship;
  • the terminal device determines that the first closed loop power control parameter is a function of the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information,
  • the first closed loop power control parameter is used to determine the transmit power of the signal of the first time unit
  • the second closed loop power control parameter is used to determine the transmit power of the signal of the second time unit; and determined according to the first closed loop power control parameter The transmit power of the signal of a unit of time.
  • Another manner of determining, according to the first information, the transmit power of the signal in the first time unit in the embodiment of the present application is:
  • the terminal device receives third configuration information from the network device, the third configuration information indicating third resource information of the second signal and configured to include at least two time units of the first time unit, the second signal and the first signal having The same or similar spatial information relationship;
  • the terminal device determines that the first closed loop power control parameter is 0, or the first closed loop power control parameter is the first configuration information, where a first closed loop power control adjustment function, the first closed loop power control parameter is used to determine a transmit power of a signal of the first time unit; and determine a transmit power of the signal at the first time unit according to the first closed loop power control parameter .
  • the terminal device determines that the second closed loop power control parameter is 0, and the second closed loop power control parameter is used to determine a transmit power of the signal of the second time unit.
  • Another manner of determining, according to the first information, the transmit power of the signal in the first time unit in the embodiment of the present application is:
  • the terminal device receives third configuration information from the network device, the third configuration information indicating third resource information of the second signal and configured to include at least two time units of the first time unit, the second signal and the first signal having The same or similar spatial information relationship;
  • the terminal device determines that the first closed loop power control parameter is the second closed loop power control parameter and the first information included in the first configuration information. a function of the closed loop power control adjustment value, the first closed loop power control parameter is used to determine the transmit power of the signal of the first time unit, and the second closed loop power control parameter is used to determine the transmit power of the signal of the second time unit; and according to the first A closed loop power control parameter that determines the transmit power of the signal at the first time unit.
  • the first condition includes: the received power change value of the signal is not within the set threshold range, and/or the resource information of the signal is different;
  • the resource information of the signal includes a resource identifier (such as a resource identifier (ID), a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, and a time domain offset.
  • a resource identifier such as a resource identifier (ID), a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, and a time domain offset.
  • the second time unit is each of the first m time units of the first time unit, and m is an integer greater than or equal to 1.
  • the second condition includes: the received power change value of the signal is within a set threshold range, and/or the resource information of the signal is the same;
  • the resource information of the signal includes a resource identifier (such as a resource ID), a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, a time domain offset, an antenna port number, and an antenna.
  • a resource identifier such as a resource ID
  • sequence identifier such as a time-frequency pattern
  • a time domain resource location such as a resource ID
  • a frequency domain resource location such as a time domain resource location
  • a time domain period such as a frequency domain resource location
  • a frequency domain period such as a frequency domain
  • a time domain offset such as a time domain offset
  • the second time unit is one of the first m time units of the first time unit, and m is an integer greater than or equal to 1.
  • the network device sends the indication information to the terminal device, where the indication information is used to indicate that the terminal device determines the first closed loop power control parameter by using the second signal, or the indication information is used to indicate the determination of the transmit power of the signal.
  • the terminal device determines, according to the indication information, that the first closed loop power control parameter is determined by using the second signal.
  • the terminal device may be further defined to determine the first closed loop power control parameter by using the second signal.
  • the terminal device sends a signal to the network device according to the transmit power of the signal.
  • the above technical solution helps the network device to meet the power requirement in the signal transmitted by the receiving terminal device based on the signal transmission power.
  • the power requirement may be that when the signal arrives at the network device, the received power of the signal of the network device needs to meet the demodulation threshold; if the signal is an interference signal, the power requirement may be when the signal arrives at the network device.
  • the signal receiving power of the network equipment needs to meet the interference threshold value to avoid the interference signal from causing strong interference to the useful signal.
  • the terminal device generates a power headroom report (PHR) according to the transmit power of the signal, and sends the PHR to the network device; after receiving the PHR from the terminal device, the network device performs corresponding power control according to the PHR. .
  • PHR power headroom report
  • the first closed loop power control parameter involved in the first aspect or any possible implementation manner of the first aspect is a function of the first closed loop power control adjustment value included in the first configuration information, where The first closed loop power control adjustment value included in one configuration information is an independent variable of the function, and the first closed loop power control parameter is a function value of a function of the first closed loop power control adjustment value.
  • the function of the first closed loop power adjustment value involved in the first aspect of the present application or any possible implementation manner of the first aspect may be a first closed loop power adjustment value, or may be a first closed loop power adjustment value.
  • linear weighting means that the first closed-loop power adjustment value can be multiplied by a certain coefficient, and the value of the specific coefficient can be notified by the network device to the terminal device, for example, according to a pre-configured algorithm, and the terminal device is determined and
  • the above-mentioned coefficients are predefined, which is not limited by the embodiment of the present application.
  • the first closed loop power control parameter involved in the first aspect or any possible implementation manner of the first aspect of the present application is the second closed loop power control parameter and the first closed loop power control included in the first configuration information.
  • a function of adjusting a value wherein the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information are independent variables of the function
  • the first closed loop power control parameter is a second closed loop power control parameter and first configuration information
  • the function of the second closed loop power control parameter and the first closed loop power adjustment value involved in the first aspect of the present application or any possible implementation manner of the first aspect may be the second closed loop power control parameter and the first closed loop power.
  • the sum of the adjustment values may also be a weighted summation of the second closed loop power control parameter and the first closed loop power adjustment value, wherein the weighting refers to the second closed loop power control parameter, and the first closed loop power adjustment value may be multiplied by some
  • the value of the specific coefficient may be notified by the network device to the terminal device.
  • the network device may notify the terminal device after determining according to a pre-configured algorithm, and may also pre-define the foregoing coefficient, which is not limited in this embodiment of the present application.
  • the second information and the first signal involved in the first aspect or the first implementation of the first aspect of the present application have the same or similar spatial information relationship, and may include the antenna port corresponding to the second signal.
  • the antenna port corresponding to the first signal has a quasi co-located (QCL) relationship, the quasi co-location relationship includes at least a quasi co-location relationship with respect to the spatial parameter; and/or, the second signal corresponds to the first signal
  • QCL quasi co-located
  • the spatial filtering is the same or similar, such as the terminal device or the network device transmitting and/or receiving the same or similar spatial filtering parameters for the first signal and the second signal.
  • the spatial filtering parameters may include one or more of beamforming parameters, precoding matrices, analog beam weights, and the like.
  • the embodiment of the present application further provides a communication apparatus for performing any of the possible technical solutions provided by the first aspect or the first aspect.
  • the communication device described above includes one or more processors and communication units.
  • the one or more processors are configured to support the communication device to perform a corresponding function of the terminal device in the above method. For example, the transmit power of the signal at the first time unit is determined based on the first information.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions. For example, receiving first configuration information from a network device.
  • the communication device may further include one or more memories for coupling with the processor, which store program instructions and/or data necessary for the network device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the communication device may be a smart terminal or a wearable device or the like, and the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above communication device includes a transceiver, a processor, and a memory.
  • the processor is for controlling a transceiver transceiver signal for storing a computer program for operating a computer program in the memory, such that the communication device performs the first aspect or any of the possible implementations of the first aspect The method that the terminal device completes.
  • the communication device described above includes one or more processors and communication units.
  • the one or more processors are configured to support the apparatus to perform the corresponding functions of the network device in the above method.
  • the first configuration information is determined.
  • the communication unit is configured to support the device to communicate with other devices to implement receiving and/or transmitting functions.
  • the first configuration information is sent to the terminal device.
  • the communication device may further include one or more memories for coupling with the processor, which store program instructions and/or data necessary for the device.
  • the one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited.
  • the communication device may be a base station, a gNB or a transmission reception point (TRP), etc.
  • the communication unit may be a transceiver or a transceiver circuit.
  • the transceiver may also be an input/output circuit or an interface.
  • the communication device can also be a communication chip.
  • the communication unit may be an input/output circuit or interface of a communication chip.
  • the above communication device includes a transceiver, a processor, and a memory.
  • the processor is configured to control a transceiver transceiver signal for storing a computer program for executing a computer program in a memory, such that the apparatus performs the network device in any of the possible implementations of the first aspect or the first aspect The method of completion.
  • a communication system comprising the above terminal device and a network device.
  • a fourth aspect a computer readable storage medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or the possible implementation of any of the first aspects.
  • a computer program product comprising: computer program code, when the computer program code is run on a computer, causing the computer to perform any of the first aspect or the first aspect described above Possible methods in the implementation.
  • the method for determining power and/or power margin in a multi-beam scenario is applicable to the power control or power headroom reporting in a multi-beam scenario, for example, for a new generation.
  • Power control or power headroom reporting of a new radio access technology (NR) system is applicable to the power control or power headroom reporting in a multi-beam scenario, for example, for a new generation.
  • Power control or power headroom reporting of a new radio access technology (NR) system NR
  • FIG. 1 is a schematic diagram of a network architecture that may be applicable to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for power control according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a communication device according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a communication device according to an embodiment of the present application.
  • the technical solution of the embodiment of the present application can be applied to various communication systems, such as a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, and a fifth generation in the future.
  • LTE long term evolution
  • WiMAX worldwide interoperability for microwave access
  • 5G 5th Generation
  • NR Universal Terrestrial Radio Access
  • 6G 6th Generation
  • the application will present various aspects, embodiments, or features in a system that can include multiple devices, components, modules, and the like. It is to be understood and appreciated that the various systems may include additional devices, components, modules, etc. and/or may not include all of the devices, components, modules, etc. discussed in connection with the figures. In addition, a combination of these schemes can also be used.
  • information, signal, message, and channel may sometimes be mixed. It should be noted that the meaning to be expressed is consistent when the difference is not emphasized. “of”, “corresponding (relevant)” and “corresponding” can sometimes be mixed. It should be noted that the meaning to be expressed is consistent when the distinction is not emphasized.
  • the subscript such as W1 may be a non-subscript form such as W1, and the meaning to be expressed is consistent when the difference is not emphasized.
  • the mark P0 and PO will have mixed scenes, where 0 and O can also appear in the following form, and the meaning of the expression is consistent when the difference is not emphasized.
  • the network architecture and the service scenario described in the embodiments of the present application are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation of the technical solutions provided by the embodiments of the present application.
  • the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.
  • the device can adjust the weight of the antenna array, and perform spatial energy aggregation on the transmitted signal and the received signal, that is, spatially filtering the signal. It is commonly referred to as beamforming technology (which includes digital beamforming techniques such as precoding).
  • beamforming technology which includes digital beamforming techniques such as precoding.
  • the adjustment of the weight of the antenna array can be performed by adjusting the phase of the phase shifter and adjusting the weight of the digital precoding.
  • the resulting weight array can also be referred to as a spatial filtering parameter.
  • the embodiments of the present application are applicable to the scenario of the beam switching technology.
  • the beam switching may refer to switching of a single beam, and may also refer to switching of a beam group.
  • the embodiments of the present application can be applied to a traditional typical network or to a UE-centric network in the future.
  • the UE-centric network introduces a non-cell network architecture, that is, deploys a large number of small stations in a specific area to form a hyper cell, and each station is a transmission point of the Hyper cell ( Transmission Point, TP) or TRP, and connected to a centralized controller.
  • TP Transmission Point
  • TRP Transmission Point
  • the network side device selects a new sub-cluster (sub-cluster) for the UE to serve, thereby avoiding true cell handover and achieving continuity of the UE service.
  • the network side device includes a wireless network device.
  • different base stations may be base stations with different identifiers, or may be base stations deployed in different geographical locations with the same identifier.
  • the base station, or the baseband chip should support the method provided by the embodiment of the present application before deployment, because the base station does not know whether it will involve the scenario applied by the embodiment of the present application before the base station is deployed. It can be understood that the foregoing base station with different identifiers may be a base station identifier, or may be a cell identifier or other identifier.
  • the scenario in the embodiment of the present application is described by taking the scenario of the NR network in the wireless communication network as an example. It should be noted that the solution in the embodiment of the present application may also be applied to other wireless communication networks, and the corresponding names may also be used in other scenarios. The name of the corresponding function in the wireless communication network is replaced.
  • the beam beam can be understood as a spatial resource, and can refer to a transmission or reception precoding vector with energy transmission directivity.
  • the transmitting or receiving precoding vector can be identified by index information.
  • the energy transmission directivity may refer to a signal having a better received power after receiving the precoding process through the precoding vector in a certain spatial position, such as satisfying a reception demodulation signal to noise ratio, etc.; Directivity may also mean that the same signals transmitted from different spatial locations are received by the precoding vector with different received power.
  • the same communication device may have different precoding vectors, and different devices may also have different precoding vectors, that is, corresponding to different beams.
  • one communication device can use one or more of a plurality of different precoding vectors at the same time, ie, one or more beams can be formed at the same time.
  • the information of the beam can be identified by the index information.
  • the index information may correspond to a resource identifier (identity, ID) of the terminal device (such as the user equipment UE).
  • ID resource identifier
  • the index information may correspond to the configured CSI-RS ID or resource, or may be correspondingly configured.
  • the ID or resource of the upstream SRS may also be index information of a signal or channel display or implicit bearer carried by the beam, for example, the index information may be a synchronization signal sent by a beam or a broadcast channel indicating the beam. Index information.
  • FIG. 1 shows a schematic diagram of a communication system suitable for the communication method of the embodiment of the present application.
  • the communication system 100 includes a network device 102 and a terminal device 106.
  • the network device 102 can be configured with multiple antennas, and the terminal device can also be configured with multiple antennas.
  • the communication system may also include a network device 104, which may also be configured with multiple antennas.
  • network device 102 or network device 104 may also include multiple components (eg, processors, modulators, multiplexers, demodulators or demultiplexers, etc.) associated with signal transmission and reception.
  • multiple components eg, processors, modulators, multiplexers, demodulators or demultiplexers, etc.
  • the network device is a device with a wireless transceiver function or a chip that can be disposed on the device, and the device includes, but is not limited to, an evolved Node B (eNB) and a radio network controller (RNC).
  • AP access point
  • WIFI wireless fidelity
  • TRP transmission point
  • TRP Transmission point
  • TP Transmission point
  • 5G such as NR, gNB in the system, or transmission point (TRP or TP), one or a group of base stations (including multiple antenna panels) in the 5G system
  • it may be a network node constituting a gNB or a transmission point,
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU implements radio resource control (RRC), the function of the packet data convergence protocol (PDCP) layer, and the DU implements the wireless chain.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU implements the wireless chain.
  • the functions of the radio link control (RLC), the media access control (MAC), and the physical (PHY) layer Since the information of the RRC layer eventually becomes information of the PHY layer or is transformed by the information of the PHY layer, high-level signaling, such as RRC layer signaling or PHCP layer signaling, can also be used in this architecture.
  • the network device can be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU may be divided into network devices in the access network RAN, and the CU may be divided into network devices in the core network CN, which is not limited herein.
  • a terminal device may also be called a user equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, and a user.
  • Agent or user device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal.
  • VR virtual reality
  • AR augmented reality
  • the embodiment of the present application does not limit the application scenario.
  • the foregoing terminal device and a chip that can be disposed in the foregoing terminal device are collectively referred to as a terminal device.
  • both the network device 102 and the network device 104 can communicate with a plurality of terminal devices, such as the terminal device 106 shown in the figures.
  • Network device 102 and network device 104 can communicate with any number of terminal devices similar to terminal device 106. It should be understood, however, that the terminal device in communication with the network device 102 and the terminal device in communication with the network device 104 may be the same or different.
  • the terminal device 106 shown in FIG. 1 can simultaneously communicate with the network device 102 and the network device 104, but this only shows one possible scenario, in some scenarios, the terminal device may only be associated with the network device 102 or the network device 104 communication, this application does not limit this.
  • FIG. 1 is merely a simplified schematic diagram for ease of understanding.
  • the communication system may also include other network devices or may also include other terminal devices, which are not shown in FIG.
  • At least one node sends a signal to other nodes, and the purpose of power control is to make the signal sent by at least one node in the network reach the other nodes, and the power can meet the requirements of the system.
  • the node here may refer to a base station, a user equipment, and the like.
  • the power control can be such that the signal power transmitted by one user meets certain power requirements when it arrives at another user.
  • the power control may be such that the signal power transmitted by the user satisfies the power requirement of the base station when it arrives at the base station.
  • the power control may be used to ensure that the signal sent by the base station reaches the power requirement of the user equipment when reaching the user equipment.
  • the power demand in the power control may refer to the power requirement of reaching a node. For example, if the signal is a useful signal to the node, the node needs to meet the demodulation threshold for the power of the received signal, and the demand is the received signal. The power should not be too low, otherwise it will not be correctly received and demodulated. Or, for example, if the signal is a non-useful signal to the node, such as an interference signal, the node needs to meet the interference threshold value for the power of the received signal, and the demand is that the power of the received signal should not be too high. Otherwise, the signal causes strong interference to the useful signal of the node.
  • Power control can occur between one node and another node. For example, the power of one user equipment to another user equipment in a D2D scenario satisfies a certain signal to interference plus noise ratio (SINR); Between multiple nodes and one node, such as uplink in LTE, power control is to allow at least one user equipment in the network to reach the power of the base station, satisfying the signal to interference and noise ratio SINR requirement of the base station; or may occur in multiple nodes. Between multiple nodes, such as in a time division duplex (TDD) network system, there may be both uplink and downlink scheduling in the system (such as dynamic TDD technology in a 5G network). At this time, power control can be used. Many-to-many power requirements for multiple user equipments, multiple base stations in a network.
  • TDD time division duplex
  • the design of the power control is to control the signal transmission power of the nodes in the network, so that the received power of the signal satisfies the reception requirements.
  • the reception requirement may be the power requirement, the SINR requirement, or the like described above, or a singal-noise ratio (SNR) requirement.
  • SNR, SINR, IoT (interference over thermal), RSRP (reference signal received power), and received power of the signal can all be regarded as target parameters in the power control link. These parameters are not They are completely equivalent, but they are related to each other. For example, SINR and RSRP are not completely equal, but in the case of the same interference level, the higher the RSRP, the better the SINR of the signal.
  • the power control in this paper does not limit the target control parameters of the algorithm in practice. But in general, the base station can determine the parameters of the power control by comparing whether the statistical signal SINR converges to the target SINR.
  • the power control margin is the power difference between the node's ability to reach the maximum transmit power and the power at which the node sends a signal.
  • the power difference here refers to the meaning of the difference between the powers in the broad sense, and does not mean that the two powers are subtracted.
  • the power difference can be obtained by subtracting the linear value of the signal transmission power from the linear value of the maximum power, or decibel (dB) of the signal transmission power by the decibel (dB) value of the maximum power.
  • the value is obtained, in which case it is equivalent to the linear value of the maximum power divided by the linear value of the signal transmission power and then converted to the dB value, which is also called the power difference. Accordingly, the description of the formula appearing in the present application is for explaining the physical meaning of the power difference, and the formula itself can also be transformed between the subtraction of the dB value, the division of the linear value, the subtraction of the linear value, and the like.
  • the PH value can be positive, 0, and negative, and its value can be quantized.
  • the PH value is quantized to different quantization levels according to a certain quantization interval.
  • the power headroom report is sent to other nodes by the above-mentioned node that sends the signal.
  • the user equipment calculates, generates, and transmits a PHR, and the PH value is received, calculated, and applied by the base station.
  • the user equipment triggers the PHR when the trigger condition is met.
  • the UE obtains the PH value, and transmits the PH value to the PHR corresponding cell, and then sends the PHR through the carried channel.
  • the PHR cell in LTE is a type of MAC cell, and the channel carried is PUSCH.
  • the base station After receiving the PHR, the base station will be able to obtain PH information and the like in the PHR.
  • the base station can use the PH information to perform the power management process. For example, when the base station receives the PH of the user equipment is small (the PH is negative, it can also be said to be PH is small), which means that the maximum transmit power that the user equipment can support is already difficult or unable to support the transmission of the current signal.
  • the base station may adjust the resources allocated to the user equipment by using an algorithm, such as reducing the bandwidth of the signal sent by the user equipment, or the base station may adjust the transmission power of the user equipment, such as reducing the power of the signal transmitted by the user equipment (the specific means is
  • the user equipment is enabled to transmit a signal to prevent the actual transmission power density caused by the excessive power requirement due to excessive transmission power demand being lower than the power density required by the base station, resulting in deterioration of the signal quality.
  • PH power control.
  • various optimization algorithms can be designed based on the physical meaning of PH to optimize system performance.
  • the physical flow of the above PHR is not limited to the LTE network.
  • the process can also be extended, scaled, and embedded into other networks, such as 5G networks.
  • PC power control
  • PHR power headroom reporting process
  • the relevant formulas in the Power Control and Power Headroom reports are for various upstream signals or channel designs.
  • LTE including PUSCH, PUCCH and SRS
  • 5G correspondingly for uplink data channel, control channel, reference signal for demodulation, reference signal for channel reference, random access channel, etc.
  • the resource granularity calculated by the relevant formula is a resource set, and the resource set contains more than one minimum resource granularity.
  • the set of resources may be one or more of a system frame, a radio frame, a frame, a subframe, a time slot, a half slot, a minislot, a symbol, a symbol set, and the like in the perspective of the time domain.
  • the frequency domain it may be one or more of a carrier, a system bandwidth, a partial bandwidth, a bandwidth part, a sub-band, a resource block, a sub-carrier, a serving cell, and the like.
  • the granularity for the formula can be the scheduling granularity of a channel or signal.
  • a node transmits or receives signals through multiple antennas, which will be referred to as multiple-input multiple-output (MIMO).
  • MIMO multiple-input multiple-output
  • a node can adjust the MIMO transmission and reception scheme, such as adjusting the weight of the transmitting antenna, assigning different signals to different antennas, etc., and can obtain gains such as diversity and multiplexing, thereby improving system capacity and increasing system reliability.
  • massive MIMO massive MIMO
  • the wavelength of the signal is shorter, such as only the millimeter level, the corresponding antenna size will also be reduced, and the nodes in the network have the ability to configure a large-scale antenna array.
  • M-MIMO M-MIMO
  • a node can configure dozens, hundreds, or even more antenna elements. These antenna arrays can be formed into antenna arrays according to a certain arrangement, such as linear arrangement, circular arrangement, and the like.
  • the antenna gain can be obtained by adjusting the weight on the antenna array, so that the transmitted or received signal exhibits an uneven energy distribution in space.
  • the signal can be made to have an energy concentration effect in a part of the direction in space. This effect can be called beamforming. At this point the signal forms a beam in space.
  • the space here may be an angular distribution in the horizontal direction, an angular distribution in the vertical direction, and the like.
  • the antenna gain is often high, resulting in significant beam directivity of the signal. Between different beams, there will be higher isolation and they will experience different channel conditions. When two nodes use beam for communication, using different beams under different conditions may cause a large change in received power, which varies from a few dB to a dozen dB. In the power control technology of LTE, the condition of such a beam is not considered.
  • multiple power control parameters can be flexibly used for power calculation, so that in different scenarios, the terminal device can calculate the requirements according to different parameters to meet the requirements of these different scenarios.
  • a beam transmission may be used between a network device and a terminal device.
  • a beam is a physical resource. In some communication systems, it may be indexed as some pilot resources and/or time-frequency resources.
  • the physical meaning of the beam is that when transmitting or receiving signals, multiple antenna technologies can be used for transmission and reception.
  • Transmission nodes such as network devices and terminal devices can perform weight processing on multiple antennas, so that the transmitted and received signals are certain.
  • the non-uniform distribution of energy in the spatial direction causes a certain concentration of signal energy, and the aggregation of such energy can be referred to as a beam.
  • a beam can be understood as a spatial resource and can refer to a transmit or receive precoding vector with energy transmission directivity. And, the transmitting or receiving precoding vector can be identified by index information.
  • the energy transmission directivity may refer to a signal having a better received power after receiving the precoding process through the precoding vector in a certain spatial position, such as satisfying a reception demodulation signal to noise ratio, etc.; Directivity may also mean that the same signals transmitted from different spatial locations are received by the precoding vector with different received power.
  • the same communication device may have different precoding vectors, and different devices may also have different precoding vectors, that is, corresponding to different beams.
  • one communication device can use one or more of a plurality of different precoding vectors at the same time, ie, one or more beams can be formed at the same time.
  • the information of the beam can be identified by the index information.
  • the index information may correspond to a resource identifier (ID) of the terminal device.
  • the index information may correspond to a configured channel state information reference signal (CSI-RS) ID.
  • the resource may also correspond to the ID or resource of the configured uplink sounding reference signal (SRS).
  • the index information may also be index information of a signal or channel display or implicit bearer carried by the beam, for example, the index information may be a synchronization signal sent by a beam or a broadcast channel indicating the beam. Index information.
  • the beam pair beam pair may include a transmit beam at the transmitting end and a receive beam at the receiving end, or also referred to as an uplink beam or a downlink beam.
  • the beam pair may include a gNB Tx beam transmission beam or a UE Rx beam reception beam, or a UE Tx beam transmission beam or a gNB Rx beam reception beam.
  • the beam may be switched between the network device and the terminal device. Especially when the quality of one beam is degraded, other beams may be switched for communication to ensure communication quality.
  • the terminal device can measure the PL according to the plurality of pilots and write it as PL(k), where k is a value corresponding to the measurement resource.
  • the measurement resources are corresponding to the beam.
  • the network device usually notifies the beam used by the terminal device during transmission, and the beam may include a transmit beam, a receive beam, and the like. Therefore, when receiving the indication information of such a beam, the terminal device can clearly know what measurement resource should be used for measurement, and then perform power calculation. However, when the terminal device does not receive such a beam indication, how the terminal device obtains the PL(k) of the calculated power or power margin from the plurality of PL(k) is an urgent problem to be solved.
  • a time unit which is a unit in a time domain of a resource for transmitting a signal, for example, a time unit may be a slot, a mini-slot, a half-slot, a system frame, a radio frame, a frame, a sub-slot.
  • a time unit may be a slot, a mini-slot, a half-slot, a system frame, a radio frame, a frame, a sub-slot.
  • the control parameter is 0;
  • the second time unit is a time slot (im), and m is an integer greater than or equal to 1, in which case the value of i is an integer greater than or equal to 1.
  • the second time unit involved in the various embodiments of the present application is before the first time unit, for example, the first time unit is the time slot j, and the second time unit may be the time slot (j-1), or Is a time slot (jn), where j is an integer greater than or equal to 0, and n is an integer greater than or equal to 1.
  • the resource information of the signal may include a resource identifier, a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, a time domain offset, an antenna port number, an antenna port number, and One or more of the antenna port group number, the quasi-co-location indication identifier of the antenna port, the time domain identifier, the frequency domain identifier, and the like.
  • the resource identifiers can be distinguished by specific numbers, such as resource identifiers 0, 1, 2, etc., respectively, representing different resources.
  • the sequence identification may be an initialization ID of the sequence, such as a cell ID, a user-specific ID, a dedicated ID of a channel or signal, and the like.
  • the time domain identifier refers to the identity of the signal in the time domain, such as the identity of the signal represented by the time domain OFDM symbol position in the time domain.
  • the time domain offset may refer to a subframe offset, a slot offset, etc. of the signal within the time domain unit.
  • the quasi-co-location indication identifier of the antenna port may be used to indicate the quasi-co-location information between the antenna ports, and the indication of the quasi-co-location indication domain is an indication identifier, optionally, the
  • the indication field can be embodied in the form of a bit.
  • the resource information of the SS may include one or more of a sequence of a synchronization signal, a seed of a sequence, a time domain resource location (such as a time domain symbol location), a frequency domain resource location, and the like; the resource information of the CSI-RS may include a CSI.
  • -RS resource identifier such as sequence scrambling identifier
  • time domain resource location such as sequence scrambling identifier
  • frequency domain resource location such as CSI-RS in each physical resource block (physical resource block, PRB) (the number of REs occupied by each port)
  • frequency band of CSI-RS such as CSI-RS of wideband, CSI-RS of partial bandwidth
  • resource mapping of CSI-RS such as CSI-RS in one time slot
  • Mapped time domain symbols and frequency domain RE Mapped time domain symbols and frequency domain RE
  • time domain configuration of CSI-RS including CSI-RS period and slot offset, etc.
  • number of ports resource ID, CSI-RS relative to physical downlink shared channel (physical Downstream shared channel (PDSCH) power offset, time domain behavior (such as period, semi-static), plus One or more of the scrambling ID
  • Closed loop power control parameters refer to the parameters of closed loop power control in power control technology.
  • open loop power control parameters and/or closed loop power control parameters may generally be included.
  • the parameter controlled by the closed loop power control technology is a closed loop power control parameter.
  • the closed-loop power control adjustment value can be used to adjust the closed-loop power control parameters in the closed-loop power control technology.
  • the determination of the closed-loop power control parameters is determined based on the closed-loop power control adjustment values.
  • the configuration information refers to configuration information used for one or more of receiving, measuring, transmitting, and the like of the terminal device.
  • the two signals have the same or similar spatial information relationship, and the antenna port corresponding to the second signal has a quasi co-located (QCL) relationship with the antenna port corresponding to the first signal, and the quasi-co-location relationship is at least Including a quasi-co-location relationship with respect to spatial parameters; and/or, the second signal is the same or similar to the spatial filtering corresponding to the first signal, such as the terminal device or the network device adopting the same or similar spatial filtering on the first signal and the second signal Parameters are sent and/or received.
  • the spatial filtering parameters may include one or more of beamforming parameters, precoding matrices, analog beam weights, and the like.
  • the quasi co-located (QCL) relationship between the two antenna ports means that the channel large-scale parameter of one antenna port can be obtained by another antenna port to obtain a large-scale parameter of the channel.
  • Large-scale parameters may include average gain, average delay, delay spread, Doppler shift, Doppler spread, spatial parameters ( One or more of the spatial parameter, or spatial Rx parameters.
  • the spatial parameters may include an Angle of Arrival (AOA), a Dominant AoA, an Average AoA, an Angle of departure (AOD), a channel correlation matrix, and an angle of arrival power.
  • AOA Angle of Arrival
  • Dominant AoA Dominant AoA
  • Average AoA Average AoA
  • AOD Angle of departure
  • channel correlation matrix channel correlation matrix
  • angle of arrival power Angle spread spectrum, average firing angle (Average AoD), power angle spread spectrum of departure angle, transmit channel correlation, receive channel correlation, transmit beamforming, receive beamforming, spatial channel correlation, spatial filter, or space
  • “Multiple” means two or more. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character “/” generally indicates that the contextual object is an "or” relationship.
  • “At least one” means one or more; “at least one of A and B”, similar to "A and/or B", describing the association of associated objects, indicating that there may be three relationships, for example, A and B. At least one of them may indicate that A exists separately, and A and B exist simultaneously, and B cases exist separately.
  • Signals may include physical channels, physical signals, and the like.
  • the physical channel may refer to an uplink channel and/or a downlink physical channel.
  • the signal can include a physical signal.
  • the physical signal may include a reference signal and/or a synchronization signal, and the like.
  • the sync signal block essentially refers to a signal containing a sync signal, which may also include a broadcast channel.
  • the signal itself is carried by some physical resources.
  • a resource may refer to one or more of a time domain resource, a frequency domain resource, a code domain resource, and an airspace resource.
  • the network device in order to be compatible with the existing power control mode, the network device usually indicates whether the terminal device closed-loop power control parameter is set to zero or accumulated by adding additional signaling.
  • the embodiment of the present application provides a method for power control to be applied to power control or power headroom reporting in an NR system. It can be understood that the method provided by the embodiment of the present application can also be applied to other systems, and is not limited to the multi-beam transmission system mentioned in this application.
  • the embodiments of the present application can be applied to network devices and network devices (such as macro base stations and micro base stations), network devices and terminal devices, terminal devices and terminal devices (such as device-to-device D2D, and in-vehicle devices to other devices V2X communication).
  • Communication the communication between the network device and the terminal device is taken as an example, but is not limited thereto, and may be collectively referred to as communication between the transmitting end and the receiving end.
  • the uplink may refer to the terminal device as the transmitting end, the network device as the receiving end, and the downlink device may refer to the network device as the transmitting end and the terminal device as the receiving end.
  • the uplink may refer to one transmission direction
  • the downlink may refer to another transmission direction opposite to the uplink.
  • a schematic flowchart of a method for power control according to an embodiment of the present application includes the following steps:
  • Step 201 The network device sends the first configuration information to the terminal device, where the first configuration information is used for configuration of the first time unit, and the first configuration information includes first information, where the first information is used to indicate the first signal. First resource information.
  • Step 202 The terminal device receives the first configuration information from the network device, and determines the transmit power of the signal in the first time unit according to the first information.
  • the terminal device may determine, according to the first information, the transmit power of the signal of the first time unit, and send a signaling to the terminal device by using the network device to indicate that the terminal device determines the transmit of the signal of the first time unit. Compared to power, it helps to reduce signaling overhead.
  • the first signal in the embodiment of the present application may be an SS
  • the SS involved in the embodiment of the present application may refer to a primary synchronization signal (PSS) and/or a secondary synchronization signal (SSS). Or one or more of a synchronization signal and a PBCH block (SSB).
  • the terminal device may obtain the first configuration information sent by the network device by using a blind detection mode, where the first configuration information may be sent to the terminal device by using a physical broadcast channel (PBCH).
  • PBCH physical broadcast channel
  • the terminal device may obtain the first configuration information by means of the network device notification, where the first configuration information may be through high layer signaling, such as radio resource control (RRC) signaling, or physical layer signaling, as follows:
  • RRC radio resource control
  • DCI downlink control information
  • the terminal device may obtain the first configuration information by means of a blind check and a network device notification, where part of the first configuration information, such as a time domain symbol position, is sent to the terminal device through the PBCH, and another part of the first configuration information is transmitted through the network device.
  • the manner of the notification is sent to the terminal device, and the specific part of the first configuration information may be sent to the terminal device by using high layer signaling, such as RRC signaling, or physical layer signaling, such as DCI.
  • the terminal device obtains the first configuration information by using any one of the foregoing manners, which is not limited in this embodiment.
  • the first signal in the embodiment of the present application may also be a signal for uplink beam indication, such as a reference signal CSI-RS for channel measurement, or a reference signal SRS for channel sounding, and a reference signal for demodulation.
  • a reference signal CSI-RS for channel measurement
  • SRS reference signal for channel sounding
  • a reference signal for demodulation for demodulation.
  • DMRS demodulation reference signal
  • the signal CSI-RS used for channel measurement may be a non-zero power signal CSI-RS for channel measurement.
  • the reference signal for channel sounding may be a non-zero power reference signal for channel sounding.
  • the reference signal DMRS for demodulation may be a solution for one or more of a PDSCH, a physical downlink control channel (PDCCH), a physical uplink shared channel (PUSCH), and a PUSCH. Adjusted reference signals, etc.
  • the first configuration information may be sent to the terminal device by using high layer signaling, such as RRC signaling, and/or physical layer signaling DCI.
  • high layer signaling such as RRC signaling, and/or physical layer signaling DCI.
  • the first signal may be one or more of an uplink signal, such as an SRS, or a DMRS for the PUSCH, or a DMRS for the PUCCH;
  • the first signal may be an uplink signal or a downlink signal, such as SRS, or DMRS for PUSCH, DMRS for PUCCH, CSI-RS, DMRS for PDSCH, and PDCCH for PDCCH.
  • SRS SRS
  • DMRS for PUSCH DMRS for PUCCH
  • CSI-RS CSI-RS
  • DMRS for PDSCH CSI-RS
  • PDCCH for PDCCH.
  • the corresponding relationship means that the uplink beam and the downlink beam may have similar channel space characteristics, and therefore, another spatial information may be obtained by knowing one of the spatial information.
  • the first signal may also be a physical channel, such as one or more of a physical downlink data channel PDSCH, a physical downlink control channel PDCCH, a physical uplink data channel PUSCH, or a physical uplink control channel PUCCH.
  • the first configuration information may indicate resource information of the physical channel, such as a resource identifier indicating the physical channel.
  • the first signal in the embodiment of the present application may also be a path loss measurement signal.
  • the path loss measurement signal may be an SS, a CSI-RS, a DMRS, or a time-frequency tracking signal (TRS). Wait.
  • the network device may indicate, by using the path loss measurement signal indication, which signal the terminal device uses as the path loss measurement signal, for example,
  • the path loss measurement signal indication includes a signal type. For example, if the signal type is SS, the terminal device uses SS as the path loss measurement signal.
  • the path loss measurement signal is SS
  • the terminal device directly uses the SS for the first time unit configuration.
  • the configuration information is used as the first configuration information, and the method for obtaining the first configuration information is similar to the method for obtaining the first configuration information when the first signal is the SS, and details are not described herein again.
  • the terminal device uses the CSI-RS as the path loss measurement signal.
  • the path loss measurement signal is the CSI-RS signal
  • the terminal device can directly use the CSI-RS for the first time unit configuration.
  • the configuration information is used as the first configuration information, and the manner of obtaining the first configuration information is similar to the manner in which the first configuration information is obtained when the first signal is a CSI-RS, and details are not described herein again.
  • Manner 1 The terminal device directly determines the transmit power of the signal of the first time unit according to the first information.
  • the terminal device determines the transmit power of the signal according to whether the configuration information of the signal of the first time unit is a reference configuration information set.
  • the reference configuration set is pre-defined or sent by the network device to the terminal device.
  • the reference configuration set has a corresponding relationship with a method of determining a transmit power of a signal.
  • a set of beam resources is predefined or indicated to the terminal device.
  • the beam resource set includes N beams, where N is an integer greater than or equal to 1.
  • the set of beam resources has a corresponding relationship with a method of determining closed loop power control parameters.
  • the first method for determining the closed loop power control parameter may be determining that the first closed loop power control parameter is a function of the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information (eg, the second closed loop power control parameter and
  • the first configuration information includes a sum of first closed loop power control adjustment values, or a weighted sum, wherein the second closed loop power control parameter is used to determine a transmit power of a signal of the second time unit; and the second determined closed loop power control parameter
  • the method may be determining that the first closed loop power control parameter is 0, or the first closed loop power control adjustment value included in the first configuration information.
  • the beam resource set has a corresponding relationship with the first method of determining a closed loop power control parameter or the second method of determining a closed loop power control parameter.
  • the set of beam resources has a corresponding relationship with the first method of determining closed loop power control parameters.
  • the method of determining the closed loop power control parameter is applied.
  • the second method of determining the closed loop power control parameter is applied.
  • the network device notifies the terminal device power control parameter set or the predefined power control parameter set.
  • the power control parameter set may be a set of [P O , ⁇ ], where P O is a nominal power spectral density and ⁇ is a path loss compensation factor, if the power control parameter set includes a J group [P O , ⁇ ]
  • the network device notifies the terminal device or a subset of the predefined J groups [P O , ⁇ ].
  • the power control parameter set may be a set of P O. If the power control parameter set includes J group P O , the network device notifies the terminal device or a subset of the predefined J group P O .
  • the set of power control parameters may also be a collection of other one or more power control parameters.
  • the subset has a corresponding relationship with a method of determining closed loop power control parameters.
  • the subset has a corresponding relationship with the first method of determining closed loop power control parameters.
  • the method for determining the closed loop power control parameter may be: determining a first closed loop power control parameter as a function of the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information, where the second closed loop power control parameter is used
  • the method for determining the transmit power of the signal of the second time unit; the second method of determining the closed loop power control parameter may be determining that the first closed loop power control parameter is 0, or the first closed loop power control adjustment value included in the first configuration information.
  • the manner of determining the transmission power of the signal of the first time unit is similar or different, and is not limited herein.
  • the second time unit is preceded by the first time unit, for example, the first time unit is time slot j, and the second time unit may be time slot (j-1) or time slot (jn). Where j is an integer greater than or equal to 0, and n is an integer greater than or equal to 1.
  • the relationship between the second time unit and the first time unit also satisfies the second time unit before the first time unit, The description will not be repeated during the introduction.
  • the power of the signal transmission power can be determined based on the following manners:
  • P PUSCH,c (i) is the transmit power of the signal of the terminal device on the carrier c, the time unit i (such as the time slot i, the subframe i);
  • P CMAX,c (i) is the terminal device on the carrier c, Maximum transmit power on time unit i;
  • M PUSCH,c (i) is carrier c, bandwidth of PUSCH on time unit i;
  • P O_PUSCH,c (i) is power spectral density of terminal equipment on carrier c, time unit i
  • the nominal power spectral density is used to identify the reference power level of the signal that the base station expects to receive;
  • n is related to the scheduling delay. If the control message sent by the network device in the time unit (in) is the scheduling time unit i, then n refers to the time from when the control message is received to when the control message takes effect.
  • the bandwidth of the PUSCH in the embodiment of the present application is used to indicate the number of resource blocks (RBs) occupied by the uplink transmission signal in the frequency domain, and may also represent the total frequency band occupied by the uplink transmission signal in the frequency domain.
  • the path loss compensation factor ⁇ also referred to as alpha
  • the network device is configured to the terminal device for semi-static transmission, for non-based scheduling information transmission, for random access phase
  • the preamble information is transmitted to the terminal device for P O and alpha based on one or more of the dynamically scheduled transmissions.
  • Multiple sets of P O , ⁇ values can also be configured for nominal power spectral density and path loss factor based on dynamic scheduled transmission.
  • the formula for determining the transmission power of the signal of the above PUSCH is only an example, and it can be understood that the transmission power of the signal is related to one or more of the influence factors on the right side of the formula, or is the influence factor on the right side of the formula.
  • the impact factor may include channel bandwidth, reference power, offset parameters of a specific channel or signal format, offset of information content carried by the channel, maximum transmit power, path loss, path loss compensation factor, closed loop power control parameter, channel Or one or more of the offset parameters of the signal transmission mode, and the like.
  • Manner 2 The terminal device receives the second configuration information from the network device, the second configuration information is used for the configuration of the second time unit, and the second configuration information includes the second information, where the second information indicates the second resource information of the first signal. And determining the transmit power of the signal of the first time unit based on the first information and the second information.
  • the second method for determining the closed loop power control parameter may be applied.
  • the determining the second determined closed loop power control parameter includes: determining that the first closed loop power control parameter is 0, determining that the first closed loop power control parameter is a function of the first closed loop power control adjustment value included in the first configuration information, or Determining that the second closed loop power control parameter is one or more of zero.
  • the first closed loop power control parameter is used to determine a transmit power of a signal of the first time unit; and determine a transmit power of the signal according to the first closed loop power control parameter.
  • the second closed loop power control parameter is used to determine the transmit power of the signal of the second time unit.
  • the first condition may include one or more of different resource information of the signal, or the received power change value of the signal is not within the set threshold range.
  • the resource information of the signal may include a resource identifier (also referred to as a resource ID), a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, a time domain offset, and an antenna port.
  • the number, the antenna port number, the quasi-co-location indication identifier, the time domain identifier, and the frequency domain identifier of the antenna port are different, and the resource information of the signal refers to at least one parameter different from the resource information of the signal.
  • the time domain identifier may refer to a time domain symbol location
  • the frequency domain identifier may refer to a frequency domain location identifier.
  • the first signal corresponding to the first resource information is different from the resource ID of the first signal corresponding to the second resource information, the first signal corresponding to the first resource information and the first signal corresponding to the second resource information are satisfied.
  • First condition if the resource ID of the first signal corresponding to the first resource information is different from the resource ID of the first signal corresponding to the second resource information, the first signal corresponding to the first resource information and the first signal corresponding to the second resource information are satisfied.
  • the first resource is The first signal corresponding to the information and the first signal corresponding to the second resource information meet the first condition, where each OFDM symbol position corresponds to one beam resource, and each first signal corresponds to a different beam resource, for example, the first signal is SS SS1 corresponds to beam resource 1, and SS2 corresponds to beam resource 2.
  • the SS1 corresponding OFDM symbol position is different from the OFDM symbol position corresponding to SS2.
  • the first signal corresponding to the first resource information corresponds to the second resource information.
  • the first signal satisfies the first condition, where the frequency domain identifier corresponds to one beam resource, and each first signal corresponds to a different beam resource, for example, the first signal is a CSI-RS, the CSI-RS1 corresponds to a beam resource 1, and the CSI-RS2 corresponds to For the beam resource 2, the frequency domain identifier corresponding to the CSI-RS1 is different from the frequency domain identifier corresponding to the CSI-RS2.
  • the frequency domain identifier may be an identifier of a frequency domain location where the signal is located, such as an identifier of a resource block (RB) location.
  • the beam resource refers to the spatial differentiation of resources, that is, the spatial information corresponding to different beam resources is different.
  • the beam resource may be one or more of the following, or may be other resources or represented by other resources (ie, corresponding to other resources), and is not limited herein:
  • Logical number A logical number may correspond to dynamically changing transmit and receive beam pairs. It can be a reduced mapping of CSI-RS resource number/antenna port number. That is to say, the network device may use a large number of CSI-RS resources/antenna ports in total, but for a certain terminal device, the CSI-RS resources/antenna ports it measures and uses are only a subset, so the ratio can be adopted. Directly indicating that the CSI-RS resource/antenna port is reduced in a manner to indicate the CSI-RS used before the terminal device, thereby indicating the corresponding beam of the terminal device.
  • Beam pair link (BPL) number Refers to an indication of the transmit and receive beam pairs.
  • the terminal device is informed of the corresponding beam by indicating the previously used/measured CSI-RS resource number/antenna port number.
  • Synchronization signal block time index SS block time index. That is, the time number of the SS block received by the terminal device. Can be used to inform the terminal device of the corresponding beam.
  • the first signal corresponding to the first resource information and the first signal corresponding to the second resource information satisfy the received power change value of the signal is not within a set threshold, for example, the terminal device receives the first signal corresponding to the first resource information.
  • the difference between the received power of the signal and the received signal of the first signal corresponding to the second resource information received by the terminal device is X. If the threshold range is set to [a, b], where X is not in the threshold range [a, b]
  • the value of a and b may be defined in advance, or may be determined by the network device according to a pre-configured algorithm, which is not limited in this embodiment of the present application.
  • the value of the received power of the signal in the embodiment of the present application may be a difference between the received power of the signal, or a ratio of the received power of the signal, and may be a value obtained by taking the ratio of the received power of the signal.
  • the threshold range set above corresponds to the first method for determining the closed loop power control parameter, and further, the set threshold range may also correspond to the method of the second closed loop power control, when the set threshold range is compared with the second closed loop power control
  • the method corresponds to the first signal corresponding to the first resource information and the first signal corresponding to the second resource information
  • the first signal corresponding to the first resource information is used.
  • the first signal corresponding to the second resource information satisfies the first condition.
  • the first condition may further change, at least one of a mapping relationship between the measurement resource and the beam resource, P O , and ⁇ , for example, the first signal corresponding to the first resource information and the second resource information
  • the mapping relationship between the measurement resource and the beam resource of the first signal corresponding to the first resource information is different from the mapping relationship between the measurement resource and the beam resource of the first signal corresponding to the second resource information, and the first corresponding to the first resource information and a second P O P O resource information corresponding to the first signal, different signals, different [alpha] [alpha] of the first signal, the first resource information corresponding to the first signal, a second resource corresponding to at least one, the first
  • the first signal corresponding to the first information and the first signal corresponding to the second resource information satisfy the first condition.
  • the measurement resource refers to a resource used to measure path loss, such as a signal resource identifier, a time-frequency pattern, a frequency domain resource location, a time domain resource location, a frequency domain period, a time domain period, or One or more of the time domain offsets, and the beam resources refer to the spatial differentiation of resources, that is, the spatial information corresponding to different beam resources is different.
  • the second time unit is each of the first m time units of the first time unit, and m is a positive integer greater than or equal to 1.
  • the m value may be pre-defined or notified by the network device. For example, if the m value is 1, the second time unit is the previous time unit of the first time unit, or the m value is greater than or equal to 2 positive integers. Then, in the first m time units of the first time unit, the first signal corresponding to the first resource information and the first signal corresponding to the first resource information satisfy the first condition.
  • the method for determining the closed loop power control parameter may be applied.
  • the first method for determining the closed loop power control parameter is to determine that the first closed loop power control parameter is a function of the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information (eg, the first closed loop power)
  • the control parameter is a sum of the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information, or a weighted sum.
  • the first closed loop power control parameter is used to determine the transmit power of the signal of the first time unit
  • the second closed loop power control parameter is used to determine the transmit power of the signal of the second time unit; and determined according to the first closed loop power control parameter. The transmit power of the signal at the first time unit.
  • the second condition may include one or more of the same resource information of the signal, or the received power change value of the signal being within a set threshold range.
  • the resource information of the signal may include a resource identifier, a sequence identifier, a time-frequency pattern, a time domain resource location, a frequency domain resource location, a time domain period, a frequency domain period, a time domain offset, an antenna port number, an antenna port number, and an antenna port.
  • the same resource information of the signal means that the resource information of the signal includes the same parameters.
  • the resource information of the signal includes the resource identifier and the time-frequency pattern
  • the resource identifier of the first signal corresponding to the first resource information is the same as the resource identifier of the first signal corresponding to the second resource information
  • the first resource information corresponds to the first
  • the terminal device determines that the first signal corresponding to the first resource information and the first signal corresponding to the second resource information satisfy the second condition.
  • the terminal device determines whether the first signal corresponding to the first resource information and the first signal corresponding to the second resource information meet the second condition, and the resource information of the signal includes
  • the resource identifier and the time-frequency pattern are used, the manner in which the terminal device determines whether the first signal corresponding to the first resource information and the first signal corresponding to the second resource information meet the second condition is similar, and details are not described herein again.
  • the difference between the signal receiving power of the first signal corresponding to the first resource information and the signal receiving power of the first signal corresponding to the second resource information received by the terminal device is Y, if the threshold range is set to [ c, d], wherein Y is within the threshold range [c, d], the first signal corresponding to the first resource information and the first signal corresponding to the second resource information satisfy the second condition.
  • the value of c and/or d may be defined in advance, or may be determined by a network device according to a pre-configured algorithm, which is not limited in this embodiment of the present application.
  • the value of the received power of the signal in the embodiment of the present application may be a difference between the received power of the signal, or a ratio of the received power of the signal, and may be a value obtained by taking the ratio of the received power of the signal.
  • the threshold range here and the corresponding threshold range when describing the first condition may be the same or different, and are not limited herein.
  • the threshold range may also be a threshold, that is, a relationship with the threshold is satisfied, such as less than (or equal to) the threshold, and the second condition is satisfied.
  • the threshold range may also be a threshold, that is, the relationship with the threshold is satisfied, such as greater than (or equal to) the threshold, and the first condition is satisfied.
  • the threshold corresponding to the first condition and the threshold corresponding to the second condition may be the same or different, and are not limited herein.
  • the second condition may also be that the mapping relationship between the measurement resource and the beam resource, P O , and ⁇ are unchanged.
  • the first information corresponding to the first resource information and the first information corresponding to the second resource information are simultaneously satisfied.
  • the mapping relationship between the measurement resource and the beam resource of the first signal corresponding to the first resource information is the same as the mapping relationship between the measurement resource and the beam resource of the first signal corresponding to the second resource information, and the P of the first signal corresponding to the first resource information P O O the same with the first signal corresponding to a second resource information, and the same ⁇ ⁇ a first signal corresponding to the first resource information and the resource information of the first signal corresponding to the second case, the first resource information
  • the first signal corresponding to the first signal and the second resource information satisfies the first condition.
  • the measurement resource refers to a resource used to measure path loss, such as a signal resource identifier, a time-frequency pattern, a frequency domain resource location, a time domain resource location, a frequency domain period, a time domain period, and a time period for performing path loss measurement.
  • a resource used to measure path loss such as a signal resource identifier, a time-frequency pattern, a frequency domain resource location, a time domain resource location, a frequency domain period, a time domain period, and a time period for performing path loss measurement.
  • the beam resource refers to the spatial differentiation of resources, that is, the spatial information corresponding to different beam resources is different.
  • the second time unit is one of the first m time units of the first time unit, and m is a positive integer greater than or equal to 1.
  • the m value may be pre-defined or notified by the network device. For example, if the m value is 1, the second time unit is the previous time unit of the first time unit, or the m value is greater than or equal to 2 positive integers.
  • the second time unit is a time unit of the first m time units of the first time unit, and the specific time unit of the first m time units of the first time unit is determined by the following manner: In the previous time unit of the first time unit, if the first signal corresponding to the first resource information and the first signal corresponding to the second resource information satisfy the second condition, the second time unit is the previous one of the first time unit a time unit, if the first signal corresponding to the first resource information and the first signal corresponding to the second resource information do not satisfy the second condition, continue to determine the first two time units of the first time unit, if the first resource information corresponds to the first The first signal corresponding to the signal and the second resource information satisfies the second condition, and the second time unit is the first two time units of the first time unit, if the first resource letter If the first signal corresponding to the first signal and the first signal corresponding to the second resource information do not satisfy the second condition, continue to determine the first three time units of the first time unit until the first m time units in the first
  • the transmit power of a signal can be determined based on the following methods:
  • M SRS,c represents the bandwidth of the frequency domain resource used for transmitting the SRS
  • P O_SRS,c (k) represents the nominal (or reference) power of the SRS (which may also be referred to as a power density reference value), including the cell of the SRS.
  • k 0 or 1
  • ⁇ SRS,c denotes the path loss adjustment factor of the SRS (or Compensation factor)
  • PL c represents the path loss
  • f SRS,c (i) is the closed-loop power control parameter.
  • the c in the embodiment of the present application is used to indicate that the parameter corresponds to the serving cell c, or the carrier component c, or is used for the transmission point c (eg, the DMRS pilot group 1 is the transmission point 1, and the DMRS pilot group 2 is the transmission point). 2, can be known through the QCL instructions).
  • i is used to represent time unit i, such as subframe i, slot i.
  • the second time unit may be a time slot (ik), k is a positive integer greater than or equal to 1, and the first signal corresponding to the first resource information and the first corresponding to the second resource information
  • f SRS,c (i) f SRS,c (ik)+ ⁇ (in)
  • f SRS,c (ik) is the second closed-loop power control parameter
  • ⁇ (in) is the first The closed-loop power control adjustment value
  • the value of k and n is greater than or equal to 1 positive integer.
  • the formula for determining the transmission power of the signal of the above SRS is only an example, and it can be understood that the transmission power of the signal is related to one or more of the influence factors on the right side of the formula, or is the influence factor on the right side of the formula.
  • the impact factor may include channel bandwidth, reference power, offset parameters of a specific channel or signal format, offset of information content carried by the channel, maximum transmit power, path loss, path loss compensation factor, closed loop power control parameter, channel Or one or more of the offset parameters of the signal transmission mode, and the like.
  • the terminal device receives second configuration information from the network device, where the second configuration information is used for configuration of the second time unit, and the second configuration information includes second information, where the second information indicates the second resource of the first signal Information; receiving third configuration information from the network device, wherein the third configuration information indicates third resource information of the second signal and is configured for at least two time units; the second signal is the same or similar to the first signal a spatial information relationship; when the at least two time units include the first time unit and the second time unit, determining that the first closed loop power control parameter is the second closed loop power control parameter and the first closed loop power control adjustment value included in the first configuration information a function, the first closed loop power control parameter is used to determine a transmit power of a signal of a first time unit, and the second closed loop power control parameter is used to determine a transmit power of a signal of the second time unit; and according to the first closed loop power Control parameters that determine the transmit power of the signal at the first time unit.
  • the first signal is a CSI-RS
  • the second signal is an SS
  • the SS has the same or similar spatial information relationship with the CSI-RS.
  • the spatial information relationship may include that the CSI-RS is the same as or similar to the spatial filtering corresponding to the SS, and/or the antenna port corresponding to the CSI-RS has a QCL relationship with the antenna port corresponding to the SS, and the QCL relationship includes at least a spatial parameter.
  • the QCL relationship When the at least two time units include the second time unit and the first time unit, the beam corresponding to the first resource information and the beam corresponding to the second resource information have similar channel characteristics.
  • the terminal device receives third configuration information from the network device, the third configuration information indicates third resource information of the second signal, and is configured to include at least two time units of the first time unit, the second signal and the A signal has the same or similar spatial information relationship. And receiving fourth configuration information from the network device, the fourth configuration information indicating fourth resource information of the second signal and configured to include at least two time units of the second time unit; the second signal corresponding to the third resource information And determining, when the second signal corresponding to the fourth resource information meets the first condition, that the first closed loop power control parameter is 0, or a function of the first closed loop power control adjustment value included in the first configuration information, where the first closed loop power control parameter is used Determining a transmit power of a signal of the first time unit; and determining a transmit power of the signal at the first time unit according to the first closed loop power control parameter.
  • the at least two time units including the first time unit and the at least two time units including the second time unit are different time units, for example, at least two times including the first time unit.
  • the unit includes a time unit 1, a time unit 2, a time unit 3, and a time unit 4, wherein the time unit 1 is a first time unit, and at least two time units including the second time unit include a time unit 5, a time unit 6, and a time unit 7 and time unit 8, wherein time unit 5 is a second time unit, then time unit 1, time unit 2, time unit 3, time unit 4, time unit 5, time unit 6, time unit 7 and time unit 8 are different Time unit.
  • the first condition in the fourth mode is similar to the first condition in the second mode, and is only the description of the first signal in the second mode, and the second signal in the fourth mode is described, and details are not described herein again.
  • the terminal device receives the third configuration information from the network device, where the third configuration information indicates the third resource information of the second signal and is used to configure the at least two time units of the first time unit, the second signal Has the same or similar spatial information relationship with the first signal.
  • the fourth configuration information indicating fourth resource information of the second signal and configured to include at least two time units of the second time unit; the second signal corresponding to the third resource information And determining, by the second closed-loop power control parameter, a function of the second closed-loop power control parameter and the first closed-loop power control adjustment value included in the first configuration information, where the second signal corresponding to the fourth resource information satisfies the second condition,
  • a closed loop power control parameter is used to determine the transmit power of the signal of the first time unit
  • a second closed loop power control parameter is used to determine the transmit power of the signal of the second time unit. The transmit power of the signal at the first time unit is then determined based on the first closed loop power control parameter.
  • the same or similar spatial information relationship may include that the second signal is the same or similar to the spatial filtering corresponding to the first signal, and/or the antenna port corresponding to the second signal has a QCL relationship with the antenna port corresponding to the first signal.
  • the QCL relationship includes at least a QCL relationship with respect to spatial parameters.
  • the second condition in the fifth method is similar to the second condition in the second method.
  • the second condition is described by the second condition
  • the fifth method is the description for the second signal. No longer.
  • the terminal device determines the first closed loop power control parameter according to the second signal, and in order to facilitate the terminal device to determine to use the second signal to determine the first closed loop power control parameter, optionally, the network device sends the terminal to the terminal.
  • the device transmits indication information for the determination of the closed loop power control parameter or for the determination of the transmit power of the signal.
  • the second signal is predefined as a signal for determining a closed loop power control parameter.
  • the function of the first closed loop power control adjustment value involved in the first mode, the second mode, the third mode, the fourth mode, and the fifth mode in the embodiment of the present application may be the first closed loop power adjustment value, or may be the first closed loop power adjustment value.
  • the above-mentioned coefficients may be predefined, which is not limited by the embodiment of the present application.
  • the functions of the second closed loop power control parameter and the first closed loop power adjustment value involved in the first mode, the second mode, the third mode, the fourth mode, and the fifth mode in the embodiment of the present application may be the second closed loop power control parameter and the first closed loop.
  • the sum of the power adjustment values may also be a weighted summation of the second closed loop power control parameter and the first closed loop power adjustment value, etc., wherein the weighting refers to the second closed loop power control parameter, and the first closed loop power adjustment value may be multiplied by A certain coefficient, the value of the specific coefficient may be notified by the network device to the terminal device.
  • the network device may notify the terminal device after determining according to a pre-configured algorithm, and may also pre-define the foregoing coefficient, which is not limited in this embodiment of the present application.
  • the first closed loop power control adjustment value of the embodiment of the present application may be indicated by a TPC, where a specific TPC may indicate an index number, where the index number corresponds to a closed loop power control adjustment value, for example, an index number and a closed loop power.
  • Table 1 The correspondence between the control adjustment values is shown in Table 1.
  • the TPC indicates 1, and in specific implementation, the TPC may be a separate DCI domain, or a domain jointly encoded by the TPC and other indication information, for example,
  • the TPC may be jointly indicated with an SRS transmission request and/or a beam indication (a beam indication is used to indicate spatial information of the signal) of the network device.
  • a TPC, SRS transmission request, and/or may be obtained. Multiple information such as beam indication.
  • the domain containing the TPC indication may be in a DCI carrying downlink related scheduling information, in a DCI carrying uplink related scheduling information, or in a DCI for scheduling multiple users.
  • the transmitting power of the signal can be determined by using the mode at a certain time.
  • mode 2 can also be used to determine the transmit power of the signal. This is not limited here.
  • the method 2 and the method 4 and the method 5 are used in combination, after the first signal corresponding to the first resource information and the second signal corresponding to the second resource information are determined to satisfy the second condition, and then further based on the fourth method. And the fifth signal corresponding to the third resource information and the second signal corresponding to the fourth resource information satisfying the first condition or the second condition.
  • the second method for determining the closed loop power control parameter may be directly applied.
  • the method further includes: determining, according to the fourth mode and the fifth mode, the third resource information, Whether the second signal corresponding to the second signal and the fourth resource information satisfies the first condition or the second condition, and if it is determined that the second signal corresponding to the third resource information and the second signal corresponding to the fourth resource information meet the first condition at the same time, The second method for determining the closed loop power control parameter may be directly applied.
  • the second method for determining the closed loop power control parameter may be specifically described in the first method.
  • the terminal device when the terminal device needs to send a signal to the network device in the first time unit, the terminal may send a signal to the network device according to the transmit power of the signal determined by the embodiment of the present application.
  • the terminal device determines the PHR according to the transmit power of the signal, and sends the PHR to the network device.
  • the PHR may be carried in a media control control unit (MAC CE) and sent to the terminal device.
  • MAC CE media control control unit
  • the PHR in the embodiment of the present application refers to the PH report
  • the PH refers to the power difference between the maximum transmit power that the terminal device can reach and the transmit power actually used when transmitting the signal.
  • the power difference here refers to Is the meaning of the difference between the powers in a broad sense, for example, the power difference may be the difference between the decibel (dB) value of the maximum transmit power and the dB value of the transmit power actually used when transmitting the signal, which may be the maximum transmit power
  • the difference between the linear value (such as the value in watts in milliwatts) and the linear value of the actual transmitted power used to transmit the signal. It can also be the linear value of the maximum transmitted power divided by the actual value of the transmitted signal.
  • the dB value obtained by converting the value obtained after the linear value of the transmitted power.
  • the network device After receiving the PHR, the network device will be able to obtain the power headroom (PH) information in the PHR.
  • the network device can perform power control and/or resource scheduling and the like according to the PH information. For example, when the PH received by the network device from the terminal device is small (the PH is negative may also be referred to as PH is small), indicating that the terminal device can support the maximum transmit power, it is difficult or impossible to support the transmission of the current signal. It is.
  • the network device may adjust the resources allocated to the terminal device by using an algorithm, such as reducing the bandwidth of the signal sent by the terminal device, or the network device may adjust the transmission power of the terminal device, such as reducing the signal transmission power of the terminal device.
  • the terminal device can transmit a signal to prevent the actual transmission power density caused by the excessive power requirement due to excessive transmission power demand being lower than the power density required by the network device, resulting in deterioration of the signal quality.
  • the above is only an example of the application of PH in power control.
  • the network device can also design various optimization algorithms according to the PH to optimize the performance of the communication.
  • the communication method of the embodiment of the present application is described in detail above with reference to FIG. 2 .
  • the communication device of the embodiment of the present application will be described in detail below with reference to FIGS. 3 to 5.
  • FIG. 3 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • the terminal device can be adapted to the functions of the terminal device in the method embodiment of the power control shown in FIG. 2 in the system shown in FIG. 1.
  • FIG. 3 shows only the main components of the terminal device.
  • the terminal device 30 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing the communication protocol and the communication data, and controlling the entire terminal device, executing the software program, and processing the data of the software program, for example, for supporting the terminal device to perform the actions described in the foregoing method embodiments, such as And determining, according to the received first information included in the first configuration information from the network device, a transmit power of the signal in the first time unit, and the like.
  • the memory is mainly used to store software programs and data, such as storing the first configuration information described in the above embodiments and the like.
  • the control circuit is mainly used for converting baseband signals and radio frequency signals and processing radio frequency signals.
  • the control circuit together with the antenna can also be called a transceiver, and is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 3 shows only one memory and one processor for ease of illustration. In an actual terminal device, there may be multiple processors and multiple memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process the communication protocol and the communication data, and the central processing unit is mainly used to control and execute the entire terminal device.
  • the processor in FIG. 3 can integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal device may include a plurality of baseband processors to accommodate different network standards, and the terminal device may include a plurality of central processors to enhance its processing capabilities, and various components of the terminal devices may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and the control circuit having the transceiving function can be regarded as the transceiving unit 301 of the terminal device 30, for example, for supporting the terminal device to perform the receiving function and the transmitting function as described in part in FIG.
  • the processor having the processing function is regarded as the processing unit 302 of the terminal device 30.
  • the terminal device 30 includes a transceiver unit 301 and a processing unit 302.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 301 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 301 is regarded as a sending unit, that is, the transceiver unit 301 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, an input port, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit or the like.
  • the processing unit 302 can be configured to execute the instructions stored in the memory to control the transceiver unit 301 to receive signals and/or transmit signals to complete the functions of the terminal device in the foregoing method embodiment.
  • the function of the transceiver unit 301 can be implemented by a dedicated chip through a transceiver circuit or a transceiver.
  • FIG. 4 is a schematic structural diagram of a network device according to an embodiment of the present application, which may be a schematic structural diagram of a base station.
  • the base station can be applied to the function of the network device in the method embodiment of the power control shown in FIG. 2 in the system shown in FIG.
  • the base station 40 can include one or more radio frequency units, such as a remote radio unit (RRU) 401 and one or more baseband units (BBUs) (also referred to as digital units, DUs). 402.
  • RRU 401 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 4011 and a radio frequency unit 4012.
  • the RRU 401 is mainly used for transmitting and receiving radio frequency signals and converting radio frequency signals and baseband signals, for example, for transmitting the first configuration information described in the foregoing embodiment to the terminal device.
  • the BBU 402 portion is mainly used for performing baseband processing, controlling a base station, and the like.
  • the RRU 401 and the BBU 402 may be physically disposed together or physically separated, that is, distributed base stations.
  • the BBU 402 is a control center of a base station, and may also be referred to as a processing unit, and is mainly used to perform baseband processing functions such as channel coding, multiplexing, modulation, spreading, and the like.
  • the BBU (processing unit) 402 can be used to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the BBU 402 may be configured by one or more boards, and multiple boards may jointly support a single access indication radio access network (such as an LTE network), or may support different access systems respectively. Radio access network (such as LTE network, 4G network or other network).
  • the BBU 402 also includes a memory 4021 and a processor 4022 for storing the necessary instructions and data.
  • the memory 4021 stores the first configuration information and the like in the above embodiment.
  • the processor 4022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform an operation procedure about the network device in the foregoing method embodiment.
  • the memory 4021 and the processor 4022 can serve one or more boards. That is, the memory and processor can be individually set on each board. It is also possible that multiple boards share the same memory and processor. In addition, the necessary circuits can be set on each board.
  • FIG. 5 shows a schematic structural diagram of a communication device 500.
  • the communication device 500 can be used to implement the method described in the foregoing method embodiments. For details, refer to the description in the foregoing method embodiments.
  • the communication device 500 can be a chip, a network device (such as a base station), a terminal device or other network device, and the like.
  • the communication device 500 includes one or more processors 501.
  • the processor 501 can be a general purpose processor or a dedicated processor or the like. For example, it can be a baseband processor, or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processor can be used to control communication devices (eg, base stations, terminals, or chips, etc.), execute software programs, and process data of the software programs.
  • the communication device may include a transceiver unit for implementing input (reception) and output (transmission) of signals.
  • the communication device can be a chip, and the transceiver unit can be an input and/or output circuit of the chip, or a communication interface.
  • the chip can be used for a terminal or base station or other network device.
  • the communication device may be a terminal or a base station or other network device
  • the transceiver unit may be a transceiver, a radio frequency chip, or the like.
  • the communication device 500 includes one or more of the processors 501, and the one or more processors 601 can implement the method of the network device or the terminal device in the embodiment shown in FIG. 2.
  • the communication device 500 includes means for receiving first configuration information, and means for determining the transmit power of the signal.
  • the means for determining the transmit power of the signal and the function for receiving the first configuration information may be implemented by one or more components.
  • the transmit power of the signal can be determined by one or more processors, and the first configuration information can be received through a transceiver, or an input/output circuit, or an interface of the chip.
  • the first configuration information refer to the related description in the foregoing method embodiments.
  • the communication device 500 includes means for receiving first configuration information, and means for determining the transmit power of the signal.
  • the first configuration information and how to determine the transmit power of the signal can be referred to the related description in the foregoing method embodiments.
  • the first configuration information may be received, for example, by a transceiver, or an input/output circuit, or an interface of a chip, and the transmit power of the signal is determined by one or more processors.
  • processor 501 can implement other functions in addition to the method of the embodiment shown in FIG. 2.
  • the processor 501 may also include instructions 503 that may be executed on the processor such that the communication device 500 performs the methods described in the above method embodiments.
  • the communication device 500 can also include circuitry that can implement the functionality of the network device or terminal device in the foregoing method embodiments.
  • the communication device 500 can include one or more memories 502 having instructions 504 stored thereon that can be executed on the processor such that the communication device 500 executes The method described in the above method embodiments.
  • data may also be stored in the memory.
  • Instructions and/or data can also be stored in the optional processor.
  • the one or more memories 502 may store the configuration information described in the above embodiments, or related parameters or tables or the like involved in the above embodiments.
  • the processor and the memory may be provided separately or integrated.
  • the communication device 500 may further include a transceiver unit 505 and an antenna 506.
  • the processor 501 may be referred to as a processing unit to control a communication device (terminal or base station).
  • the transceiver unit 505 can be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., for implementing the transceiver function of the communication device through the antenna 506.
  • the application also provides a communication system comprising one or more of the aforementioned network devices, and one or more terminal devices.
  • processors in the embodiment of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), and dedicated integration.
  • DSPs digital signal processors
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory can be a random access memory (RAM) that acts as an external cache.
  • RAM random access memory
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic randomness synchronous dynamic randomness.
  • Synchronous DRAM SDRAM
  • DDR SDRAM double data rate synchronous DRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous connection dynamic random access memory Take memory
  • DR RAM direct memory bus random access memory
  • the above embodiments may be implemented in whole or in part by software, hardware (such as circuitry), 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 comprises one or more computer instructions or computer programs.
  • the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, 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 Transfer 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 media that can be accessed by a computer or a data storage device such as a server, data center, or the like that contains one or more sets of available media.
  • the usable medium can be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium.
  • the semiconductor medium can be a solid state hard disk.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, 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 of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which 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

La présente invention se rapporte au domaine technique des communications et concerne un système, un appareil et un procédé de commande de puissance. Le procédé comprend les étapes suivantes : après réception de premières informations de configuration d'un dispositif de réseau, un dispositif terminal détermine la puissance d'émission d'un signal d'une première unité de temps en fonction de premières informations comprises dans les premières informations de configuration. Au moyen de la solution technique, le dispositif de réseau ordonne au dispositif terminal de déterminer la puissance d'émission du signal de la première unité de temps, sans ajouter de signalisation supplémentaire, ce qui est avantageux pour réduire les surdébits de signalisation.
PCT/CN2018/117540 2017-11-27 2018-11-26 Système, appareil et procédé de commande de puissance WO2019101204A1 (fr)

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