WO2022033301A1 - 路径损耗确定方法、节点和存储介质 - Google Patents

路径损耗确定方法、节点和存储介质 Download PDF

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Publication number
WO2022033301A1
WO2022033301A1 PCT/CN2021/108805 CN2021108805W WO2022033301A1 WO 2022033301 A1 WO2022033301 A1 WO 2022033301A1 CN 2021108805 W CN2021108805 W CN 2021108805W WO 2022033301 A1 WO2022033301 A1 WO 2022033301A1
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Prior art keywords
power control
path loss
reference signal
transmission
parameter
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PCT/CN2021/108805
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English (en)
French (fr)
Inventor
姚珂
高波
鲁照华
蒋创新
张淑娟
闫文俊
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中兴通讯股份有限公司
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Publication of WO2022033301A1 publication Critical patent/WO2022033301A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present application relates to the field of wireless communication technologies, for example, to a path loss determination method, a node and a storage medium.
  • the high frequency band has abundant frequency domain resources, but there is a problem that the wireless signal decays rapidly and leads to small coverage.
  • Sending signals in a beam mode can concentrate energy in a relatively small spatial range and improve the coverage of high-frequency signals.
  • the beam pair between the base station and the user equipment may also change with the change of time and location, so a flexible beam update mechanism is required.
  • the power control parameters of uplink transmission also need to be changed, such as the reference signal for measuring path loss, closed-loop power control parameters, etc.
  • the related art can support the basic beam mechanism, but for beam indication of multiple channels, there is a problem that the beam-related power control parameter information is not clear.
  • the present application provides a path loss determination method, node and storage medium.
  • a first communication node receives command information indicating a beam state of uplink transmission, and when an RS for PL measurement associated with the beam state is in an unmaintained state , and determine the path loss of the uplink transmission by a preset method.
  • An embodiment of the present application provides a path loss determination method, which is applied to a first communication node, and the method includes:
  • the embodiment of the present application also provides a closed-loop power control determination method, which is applied to the first communication node, and the method includes:
  • the embodiment of the present application also provides a method for determining a power control margin, which is applied to the first communication node, and the method includes:
  • TPC Transmit Power Control
  • the embodiment of the present application also provides a path loss determination device, the device includes:
  • the acquisition module is used to acquire command information; the determination module is used to determine the beam state of uplink transmission according to the command information; the determination module is used for the reference signal PL-RS for path loss measurement associated with the beam state is in an unmaintained path In the case of loss PL measurement, the path loss of uplink transmission is determined according to a preset method.
  • the embodiment of the present application also provides a closed-loop power control determination device, which includes:
  • a reset module configured to reset the reference signal and the power control parameter when the correlation between the reference signal and the power control parameter is provided, or when the power control parameter in the correlation between the reference signal and the power control parameter is changed.
  • the closed-loop power control adjustment value corresponding to the closed-loop power control parameters in the correlation relationship.
  • the embodiment of the present application also provides a power headroom determination device, the device includes:
  • a determination module used for determining the closed-loop power control adjustment amount of the virtual transmission according to at least one of the start time of the virtual transmission and the accumulation interval of the TPC command of the virtual transmission; the determination module is also used for the closed-loop power control adjustment according to the virtual transmission. Determines the power headroom for virtual transmissions.
  • An embodiment of the present application also provides a node, the node includes: a memory, a processor, a program stored in the memory and running on the processor, and data for implementing connection and communication between the processor and the memory
  • the bus when the program is executed by the processor, implements the above-mentioned path loss method, or the above-mentioned closed-loop power control determination method, or the above-mentioned power control margin determination method.
  • the embodiments of the present application also provide a readable and writable storage medium, the storage medium is used for computer storage, and the storage medium can store one or more programs, when one or more programs can be executed by one or more processors , so as to realize the above-mentioned path loss method, or the above-mentioned closed-loop power control determination method, or the above-mentioned power control margin determination method.
  • the present application provides a path loss method, node and storage medium.
  • the method includes a first communication node acquiring command information, determining a beam state of uplink transmission according to the command information, and a reference for path loss measurement associated with the beam state.
  • the first communication node may determine the path loss of the uplink transmission in a preset manner.
  • FIG. 1 is a flowchart of a path loss method provided by an embodiment of the present application.
  • FIG. 2 is a flowchart of a method for determining a closed-loop power control provided by an embodiment of the present application
  • FIG. 3 is a flowchart of a method for determining a power control margin provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram of a TPC command accumulation interval of a closed-loop power control adjustment amount of a dynamically scheduled PUSCH and virtual PUSCH transmission provided by an embodiment of the present application;
  • FIG. 5 is a schematic structural diagram of a path loss determination device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a closed-loop power control determination device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an apparatus for determining a power headroom provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a first communication node provided by an embodiment of the present application.
  • words such as “optionally” or “exemplarily” are used to represent examples, illustrations, or illustrations. Any embodiment or design described in the embodiments of the present application as “optionally” or “exemplarily” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “optionally” or “exemplarily” is intended to present the related concepts in a specific manner.
  • the scheme that NR supports multiple beams means that the uplink and downlink indicate beams respectively, and data and services are also independent beams.
  • the downlink beam is only indicated by the TCI state method
  • the uplink beam is indicated by the channel sounding reference signal (Sounding Reference Signal, SRS) resource and the physical uplink control channel (Physical Uplink Control Channel, PUCCH) resources define their respective spaces Spatial relation, where spatial relation refers to an existing uplink reference signal (Up Link Reference Signal, UL RS, namely SRS) or downlink reference signal (Down Link Reference Signal, DL RS), PUSCH refers to the existing SRS resources.
  • SRS Sounding Reference Signal
  • PUCCH Physical Uplink Control Channel
  • Unified TCI architecture both uplink and downlink transmissions use the Transmission Configuration Indication (TCI) state to indicate beams.
  • TCI Transmission Configuration Indication
  • Common beam the data channel and control channel use the same beam.
  • DCI Downlink Control Information
  • PDSCH Physical Downlink Shared Channel
  • PDSCH Physical Downlink Control Channel
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Shared Channel
  • PUSCH Physical Uplink Shared Channel
  • the TCI state indicated by the DCI for PDSCH only considers downlink transmission
  • the TCI state indicated by the DCI for scheduling downlink transmission is not clearly specified for uplink transmission, and there is no associated path loss reference signal (Path Loss Reference Signal).
  • Path Loss Reference Signal path loss reference signal
  • the relevant content of the state of Signal, PL-RS is clearly defined.
  • the path loss (Path Loss, PL) value is the result of high-level filtering, and it is necessary to monitor the reference signal (Reference Signal, RS) for measuring PL for a long time.
  • the PL in a Long Term Evolution (Long Term Evolution, LTE) system is mainly measured by a Cell Reference Signal (CRS), which does not require network-side configuration and depends on the implementation of User Equipment (UE).
  • CRS Cell Reference Signal
  • UE User Equipment
  • the NR system since there is no CRS, it can be used to measure the downlink RS (for example, Channel State Information-Reference Signals, CSI-RS), synchronization signal and physical broadcast channel (Physical Broadcast Channel) of the PL.
  • CSI-RS Channel State Information-Reference Signals
  • Physical Broadcast Channel Physical Broadcast Channel
  • PBCH Synchronization Signal and PBCH Block, SSB)
  • SSB Synchronization Signal and PBCH Block
  • the PL-RS standard for radio resource control (Radio Resource Control, RRC) configuration does not specify a clear effective time, and the media access control element (Media Access Control Control Element, MAC CE) needs to update the PL-RS. It can be used after a certain valid time, wherein the PL-RS is the RS used for PL measurement.
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the base station enables the UE to determine beam resources for PUSCH transmission and parameters related to multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) by indicating the reference SRS resources for PUSCH transmission. That is, the UE sends multiple SRS resources, and after evaluation, the base station selects one or more SRS resources to indicate to the UE as a reference for PUSCH transmission. The UE sends PUSCH transmissions using the same parameters as sending SRS resources, such as sending spatial filters.
  • MIMO multiple-input Multiple-Output
  • the SRS resource used as a reference for PUSCH transmission comes from the SRS resource set, and PUSCH transmission can refer to one or more SRS resources, indicated by SRI (SRS resource indicator, SRS resource Indicator), and the value range of SRI depends on the SRS resource The number of aggregated SRS resources and the transmission mode of PUSCH.
  • SRI SRS resource indicator, SRS resource Indicator
  • SRI indicates one SRS resource in the SRS resource set
  • SRI has at most 2 or 4 values.
  • the maximum number of SRS resources in the SRS resource set with the corresponding purpose of "nonCodebook” is 4
  • SRI indicates any combination of SRS resources in the SRS resource set
  • SRI has a maximum of 15 values.
  • the base station configures the power control parameters of PUSCH for the UE through RRC, including the pool of open-loop power control parameters of PUSCH (target received power PO_UE and path loss compensation factor ⁇ ), and the pool of PL-RS of PUSCH. ,
  • the number (pool) of closed-loop power control of PUSCH can also be understood as a pool of closed-loop power control parameters. For example, if the number of closed-loop power controls is 2, the closed-loop power control parameter pool includes two closed-loop power control numbers, which represent different closed-loop power controls respectively.
  • the base station may also be a concept such as a NodeB, a next generation NodeB (gNB), an access point (Access Point, AP), or a network side.
  • gNB next generation NodeB
  • AP access point
  • a network side a concept such as a NodeB, a next generation NodeB (gNB), an access point (Access Point, AP), or a network side.
  • the parameter pool involved may be understood as a set including at least one parameter.
  • the PL-RS parameter pool includes at least one PL-RS parameter, and each PL-RS parameter is identified by a PL-RS parameter number.
  • the base station may also configure the association relationship with the above three power control parameters for each possible SRI value of the PUSCH.
  • SRI does not appear directly, but corresponds to the correlation number sri-PUSCH-PowerControlId between SRI and power control parameters.
  • the relationship between SRI value and PL-RS can be determined by MAC CE update.
  • the UE transmits the referenced SRI through the PUSCH, and searches the correlation between the SRI and the power control parameter to obtain the power control parameter of the PUSCH.
  • the power control parameters of the PUCCH may include the power control parameters associated with the PUCCH spatial relationship set configured by the RRC for the UE, the power control parameters associated with the PUCCH resource set, and the power control parameters associated with each PUCCH spatial relationship.
  • the MAC CE activates the PUCCH resources, and Configure the associated PUCCH spatial relationship for the activated PUCCH resource, the DCI indicates the PUCCH resource from the PUCCH resource activated by the MAC CE, and the UE learns the PUCCH spatial relationship associated with the PUCCH resource from the DCI, and then determines the power control parameters for PUCCH transmission.
  • the base station may configure for the UE: a PUCCH power control parameter pool and a PUCCH spatial relationship pool.
  • the PUCCH power control parameter pool includes: a pool of PUCCH open-loop power control parameters (target received power P0), a pool of PUCCH PL-RS, and the number (pool) of PUCCH closed-loop power control.
  • the base station can also configure the relationship between the spatial relationship and the power control parameter, that is, configure the associated power control parameter for each spatial relationship, and the power control parameter can be indicated by the number of each power control parameter in the PUCCH power control parameter pool.
  • the base station activates one or more PUCCH resources through the MAC CE, and associates the spatial relationship of one PUCCH in the RRC-configured PUCCH spatial relationship pool for each activated PUCCH resource.
  • the UE After receiving the MAC CE that activates the PUCCH resource, the UE sends a HARQ-ACK to the base station, and the activation of the PUCCH resource by the MAC CE takes effect after 3 subframes.
  • a PUCCH resource is indicated in the DCI, and the UE can obtain the power control parameters of the corresponding PUCCH according to the spatial relationship of the associated PUCCH.
  • the number of PL-RS configurations is expanded to 64, but the number of PL-RSs associated with the PUCCH resources activated by the MAC CE cannot be greater than 4.
  • the number of PL-RSs associated with the activated PUCCH resources and the total of the activated PL-RSs of the PUSCH and the activated PL-RSs of the SRS cannot exceed 4.
  • FIG. 1 is a flowchart of a path loss method provided by an embodiment of the present application, and the method may be applied to a first communication node, such as a UE, a terminal, and the like in a communication system. As shown in Figure 1, the method may include the following steps:
  • the command information may be information sent by the base station.
  • the above command information may include at least one of the following: DCI, MAC CE, higher layer signaling (for example, RRC signaling).
  • the beam state may include a Quasi Co-Location (QCL) state, a TCI state, spatial relation information (spatial relation information), reference signal information (Reference Signal Information, RSI), spatial filter information ( At least one of spatial filter information) and precoding information.
  • QCL Quasi Co-Location
  • TCI Transmission Control Channel
  • spatial relation information spatial relation information
  • reference signal information Reference Signal Information, RSI
  • spatial filter information At least one of spatial filter information
  • Uplink transmission includes: PUSCH transmission, PUCCH transmission or SRS transmission.
  • the above-mentioned PL-RS can be understood as an RS used for PL measurement, and the above-mentioned PL-RS not maintained PL measurement can also be understood as the PL measurement of the PL-RS is in an ineffective state. For example, after the RS for PL measurement is activated, it has not been measured yet, or is being monitored or measured, but the number of measurements has not reached a predetermined number of times, then the PL cannot be applied.
  • the above-mentioned unmaintained PL measurement may also mean that the PL-RS is not activated or monitored.
  • the first communication node determines the path loss of uplink transmission according to a preset method.
  • the first communication node obtains command information, and determines the beam state of uplink transmission according to the command information.
  • the PL-RS associated with the beam state is not maintained for PL measurement, it can be determined by a preset method. Path loss for upstream transmission.
  • the first communication node may also determine the path loss of uplink transmission according to a preset method.
  • the manner of determining the path loss of the uplink transmission according to the preset manner in the foregoing step S103 may include at least one of the following manners, for example:
  • Manner 1 Determine the path loss of uplink transmission according to the PL-RS parameter corresponding to the smallest PL-RS parameter number in the PL-RS parameter pool. For example, the path loss of uplink transmission is determined according to the PL-RS corresponding to the smallest PL-RS parameter number in the PL-RS parameter pool of PUSCH; wherein, the PL-RS parameter pool includes at least one PL-RS parameter, and each PL-RS parameter Parameters are identified by the PL-RS parameter number.
  • Manner 2 Determine the path loss of uplink transmission according to the path loss reference signal corresponding to the minimum association identifier in the association relationship between the SRS resource indication SRI and the power control parameter.
  • Mode 3 Determine the path loss of uplink transmission according to the reference signal (eg, downlink reference signal, periodic or semi-persistent reference signal, etc.) corresponding to the control resource set (CORESET, Control Resource Set) with the smallest number.
  • the reference signal eg, downlink reference signal, periodic or semi-persistent reference signal, etc.
  • CORESET Control Resource Set
  • Manner 4 Determine the path loss of uplink transmission according to the TCI state of the CORESET with the smallest number in the activated bandwidth part (Bandwidth Part, BWP) or the RS resource of type D in the QCL assumption.
  • BWP Bandwidth Part
  • QCL-TypeA ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇
  • QCL-TypeB ⁇ Doppler spread Doppler shift, Doppler spread ⁇
  • QCL-TypeC ⁇ Doppler shift, average delay ⁇
  • QCL-TypeD ⁇ Spatial Rx parameter ⁇ .
  • Mode 5 Determine the path loss of uplink transmission according to the reference signal corresponding to the CORESET with the smallest number associated with the command information in the activated BWP to the same CORESET pool; for example, when the command information is DCI, the search space of the PDCCH containing the DCI corresponds to
  • the CORESET pool identifier (Identifier, ID) of the CORESET may correspond to at least one CORESET, and the path loss of uplink transmission is determined according to the reference signal corresponding to the CORESET with the smallest number.
  • Mode 6 Determine the path loss of uplink transmission according to the TCI state of the CORESET with the smallest number in the activated BWP or the periodic RS resource of type D in the QCL assumption that the command information is associated with the same CORESET pool.
  • Mode 7 Determine the path loss of uplink transmission according to the RS resource of the activated TCI state or TCI state codepoint with the smallest PDSCH number.
  • Each value of the TCI state codepoint can indicate a pre-specified combination of TCI states, and the combination of TCI states includes one or more TCI states.
  • Mode 8 Determine the path loss of uplink transmission according to the RS resource of the activated TCI state or TCI state codepoint with the smallest PDSCH number in the activated downlink BWP.
  • the first communication node may first determine the path loss of uplink transmission according to a preset method, and after the new PL-RS takes effect, use the new PL-RS to determine the path loss of uplink transmission.
  • the new PL-RS is the beam state of uplink transmission determined according to the command information, such as the PL-RS associated with the TCI state.
  • the new PL-RS may be the beam state of the uplink transmission determined according to the command information, such as the DL-RS in the TCI state.
  • the first communication node receives the command information, and in the case that the PL-RS associated with the beam state is not maintained for PL measurement, the PL-RS associated with the beam state is activated, that is, the PL-RS starts to be monitored and used for PL measurement. After the number of PL measurements, or the number of PL-RS transmissions, reaches a predetermined number of times, the PL of the PL-RS takes effect, that is, the PL-RS is in the state of being maintained for PL measurement, where the predetermined number of times may be 3, 5, or other positive integers.
  • the first communication node in the case that the PL-RS associated with the beam state is maintained PL, or in the case that the PL of the PL-RS associated with the beam state is valid, the first communication node can be based on the PL associated with the beam state.
  • the PL of the RS determines the path loss of the uplink transmission.
  • the PL valid time of the PL-RS may be a predefined time, a time configured by the base station, or the valid time is related to the capability of the first communication node.
  • the first communication node waits for the PL of the PL-RS to be valid or The PL-RS associated with the beam state is used for uplink transmission only after the PL is maintained.
  • the TCI state indicated by the restriction command information for downlink transmission must be associated with power control parameters (for example, indicated by RRC or MAC CE), and the PL-RS must be in the PL valid state (or the state where the PL-RS is maintained PL) . That is, the RRC or the MAC CE is responsible for activating the PL-RS, and the PL-RS indicated by the DCI cannot be used for uplink transmission before the PL takes effect.
  • power control parameters for example, indicated by RRC or MAC CE
  • FIG. 2 is a flowchart of a method for determining closed-loop power control provided by an embodiment of the present application, and the method may be applied to a first communication node, for example, a UE, a terminal, and the like in a communication system. As shown in Figure 2, the method may include the following steps:
  • the relationship between the reference signal and the power control parameter may also be reset when the correlation between the reference signal and the power control parameter is provided, and when the power control parameter in the correlation between the reference signal and the power control parameter changes, the relationship between the reference signal and the power control parameter is reset.
  • the above-mentioned reference signal may include at least one of SRI, spatial relationship, TCI state, CSI-RS, SSB, and SRS
  • the association between the reference signal and the power control parameter may include the association between the reference signal and the power control parameter. number, and power control parameters.
  • the number of the relationship between the reference signal and the power control parameter may correspond one-to-one with the value of the reference signal
  • the power control parameter may include at least one of an open-loop power control parameter, a closed-loop power control parameter, and a path loss measurement parameter.
  • the above-mentioned open-loop power control parameters may include target received power P0, and/or path loss compensation factor alpha.
  • the open-loop power control parameter is indicated by the open-loop power control parameter number, which is used to identify one or a group of open-loop power control parameters in the pre-configured open-loop power control parameter pool.
  • a set of open loop power control parameters includes P0 and alpha.
  • the closed-loop power control parameters may include a closed-loop power control number.
  • the path loss measurement parameter may include the resources of the reference signal PL-RS used to measure the path loss.
  • the path loss measurement parameter is indicated by the path loss measurement parameter number, and is used to identify a path loss measurement parameter in the preconfigured path loss measurement parameter pool.
  • providing may be understood as configuring, reconfiguring, re-provisioning, updating, activating, or adding.
  • the above-mentioned association relationship between the reference signal and the power control parameter may be provided by at least one of a high layer parameter and a MAC CE.
  • the change of the power control parameter in the correlation between the reference signal and the power control parameter may include at least one of the following situations:
  • the open-loop power control parameters in the relationship between the reference signal and the power control parameters change; the closed-loop power control parameters in the relationship between the reference signal and the power control parameters change; the relationship between the reference signal and the power control parameters changes
  • the path loss measurement parameters have changed.
  • the power control parameter included before the update is A
  • the included power control parameter is updated to B, where A and B are not the same, that is, the relationship between the reference signal and the power control parameter No. 0 of the power control parameter occurs. Change.
  • the following describes the closed-loop power control adjustment amount corresponding to the closed-loop power control parameter in the correlation between the reset reference signal and the power control parameter by taking an example.
  • the correlation between the SRI and the power control parameter may be updated through RRC. It is assumed that the relationship between the SRI before the update and the power control parameters includes the first value in the open-loop power control parameter pool, and the updated relationship includes the values in other positions, such as the second value, that is, the relationship between the SRI and the power control parameters.
  • the closed-loop power control adjustment value corresponding to the closed-loop power control parameter in the correlation relationship between the SRI and the power control parameter is reset.
  • the association between the SRI and the power control parameter is updated through the MAC CE. It is assumed that the relationship between the SRI before the update and the power control parameters includes the first path loss parameter in the path loss measurement parameter pool, and the updated relationship includes the second path loss parameter in the path loss parameter pool, that is, the SRI and the power If the path loss measurement parameter in the correlation relationship between the control parameters changes, the closed-loop power control adjustment value corresponding to the closed-loop power control parameter in the correlation relationship between the SRI and the power control parameters is reset.
  • the open-loop power control parameters are changed, the closed-loop power control parameters are changed, or the path loss measurement parameters are changed, which may include: each parameter pool is unchanged but the new parameters are in the parameter pool. The number has changed, or the number of the new parameter in the parameter pool has not changed but the parameter pool has changed.
  • the change of the above parameters means that the corresponding power control parameter in the correlation between the reference signal and the power control parameter is changed.
  • the above reset closed-loop power control adjustment amount can also be understood as a power control adjustment state.
  • the closed-loop power control adjustment can be determined by the TPC command, which supports two methods: cumulative and absolute value.
  • the cumulative closed-loop power control adjustment is the sum of the value indicated by the new TPC command and the historical closed-loop power control adjustment.
  • the absolute value of the closed-loop power control adjustment is only equal to the value indicated by the new TPC command.
  • resetting the closed-loop power control adjustment may include setting the value of the closed-loop power control adjustment to zero.
  • PHR Power Headroom Report, power headroom report
  • PHR is defined as the difference between the maximum transmit power and the power required for uplink transmission.
  • the power required for uplink transmission only considers power control-related parameters, and does not need to consider the limit of the maximum transmit power, so it may be greater than the maximum transmit power.
  • PHR and PH Power Headroom, power headroom
  • the type 1PHR is calculated based on PUSCH transmission.
  • the PHR calculated based on the real PUSCH transmission is called the real PHR of type 1
  • the PHR calculated based on the format of the PUSCH reference is called the virtual PHR of type 1.
  • type 3PHR is calculated based on SRS transmission.
  • the PHR calculated based on the SRS transmission also includes the real PHR and the virtual PHR.
  • Type 3 PHR is used for carriers/cells without PUSCH or PUCCH configured.
  • the PHR of Type 3 is also divided into real PHR and virtual PHR, which are calculated based on real SRS transmission or SRS reference format, respectively.
  • the closed-loop power control adjustment amount should also be considered when calculating the virtual PHR.
  • the closed-loop power control adjustment amount in PUSCH transmission is f(i, l), where i is the PUSCH transmission occasion number, and l is the closed-loop power control number of PUSCH transmission.
  • the closed-loop power control adjustment amount in SRS transmission is h(i,l), where i is the SRS transmission occasion number, and l is the closed-loop power control number of SRS transmission.
  • FIG. 3 is a flowchart of a method for determining a power control margin provided by an embodiment of the present application.
  • the method may be applied to a first communication node, for example, a UE, a terminal, and the like in a communication system. As shown in Figure 3, the method may include the following steps:
  • S301 Determine the closed-loop power control adjustment amount of the virtual transmission according to at least one of the start time of the virtual transmission and the accumulation interval of the TPC commands of the virtual transmission.
  • the start time of the virtual transmission is determined according to the start time of the time slot corresponding to the virtual transmission.
  • the end time of the TPC command accumulation interval of the virtual transmission may be determined by the start time of the virtual transmission and the parameter K, where the parameter K is a pre-configured value. For example, it is determined by the minimum value of the RRC parameter k2.
  • S302. Determine the power headroom of the virtual transmission according to the closed-loop power control adjustment of the virtual transmission.
  • the power headroom of the virtual transmission may be determined based on the closed-loop power control adjustment amount.
  • the closed-loop power control adjustment of the virtual transmission may be determined based on the closed-loop power control adjustment of the virtual transmission. power headroom.
  • the end time of the TPC command accumulation interval of the i0th transmission before the virtual transmission is earlier than the end time of the TPC command accumulation interval of the virtual transmission, where i0 is the smallest positive integer that satisfies this condition.
  • the start time of the i0th transmission is before the start time of the virtual transmission, and the i0th transmission includes virtual or real transmissions of the same type as the virtual transmission.
  • the virtual transmission is a PUSCH transmission
  • the i0th transmission before the virtual transmission refers to a virtual or real PUSCH transmission.
  • the i0th transmission before the virtual transmission refers to a virtual or real SRS transmission.
  • the end time of the above-mentioned TPC command accumulation interval of the virtual transmission may include a time point obtained by a period of time determined by the parameter K ahead of the start time of the virtual transmission, that is, a period of time determined by the parameter K, and at The start time of the virtual transmission is pushed forward by this period of time, and the obtained time point is determined as the end time of the accumulation interval of the TPC command of the virtual transmission.
  • the above-mentioned virtual transmission may include reference PUSCH transmission, or reference SRS transmission.
  • i is the number of the PUSCH transmission opportunity
  • l is the closed-loop power control number of PUSCH transmission
  • the closed-loop power control adjustment h( In i, l), i is the number of the SRS transmission opportunity
  • l is the closed-loop power control number of the SRS transmission. That is, the virtual transmission opportunity i can be used to calculate the power headroom of the virtual transmission, and starting from the requirement of updating f(i, l), i and the transmission opportunity of the real PUSCH are accumulated and counted.
  • the closed-loop power control adjustment amount of PUSCH can be expressed as:
  • the subscript c represents the serving cell
  • the subscript f represents the carrier
  • the subscript b represents the uplink bandwidth part (Uplink BWP, UL BWP)
  • l represents the PUSCH closed-loop power control number
  • the period of time refers to K PUSCH (ii 0 )-1 symbols before PUSCH transmission occasion ii 0 on UL BWP b of carrier f of serving cell c to K PUSCH (i) symbols before PUSCH transmission occasion i, where i 0 >0 is the smallest integer that satisfies that K PUSCH (ii 0 ) before PUSCH transmission occasion ii 0 is earlier than K PUSCH (i) before PUSCH transmission occasion i.
  • the start time of the PUSCH transmission occasion may be the start position of the time slot where the reference PUSCH transmission is located. That is, the start time of the virtual transmission is determined by the start time of the time slot corresponding to the virtual transmission.
  • K PUSCH (i) (ie, the K value) is a parameter determined by the minimum value of the parameter k2 configured by the higher layers.
  • K PUSCH (i) is the number of symbols in a slot The product of the minimum value of k2 in the PUSCH-ConfigCommon parameter configured on the activated UL BWP b of the carrier f of the serving cell c. That is, the end point of the TPC command accumulation interval of the virtual transmission is a time determined by the minimum value of k2 before the start time of the virtual transmission.
  • DCI#1, DCI#2, and DCI#5 schedule PUSCH transmission i-2, PUSCH transmission i and PUSCH transmission i+1 respectively, DCI#1, DCI#2, and DCI#5 respectively indicate TPC1, DCI#2, and DCI#5.
  • TPC2, TPC5; DCI#3, DCI#4 are DCI format 2_2, indicating TPC3 and TPC4 respectively, but do not schedule PUSCH transmission;
  • PUSCH transmission i-1 is a virtual transmission without corresponding DCI.
  • the accumulated time periods of the TPC commands of the closed-loop power control adjustment corresponding to PUSCH transmission i-1, PUSCH transmission i and PUSCH transmission i+1, as well as f(i-1), f(i) and f(i+ 1) are calculated as follows:
  • the Kmin noted in Figure 4 is the amount of time determined by the minimum value of the parameter k2.
  • FIG. 5 is a path loss determination device provided by an embodiment of the present application.
  • the device includes: a receiving module 501 and a determining module 502; wherein the receiving module 501 is used for receiving command information; the determining module 502, for determining the beam state of uplink transmission according to the command information; the determining module 502 is further configured to determine the path loss of uplink transmission according to a preset method when the PL-RS associated with the beam state is not maintained for PL measurement.
  • the above-mentioned command information includes at least one of DCI, MAC CE, and high-layer signaling.
  • the beam state may include Quasi Co-Location (QCL) state, TCI state, spatial relation information (spatial relation information), reference signal information (Reference Signal Information, RSI), spatial filter At least one of information (spatial filter information) and precoding information (precoding information).
  • QCL Quasi Co-Location
  • TCI state TCI state
  • spatial relation information spatial relation information
  • reference signal information Reference Signal Information, RSI
  • spatial filter At least one of information (spatial filter information) and precoding information (precoding information).
  • the above determination module 502 can be configured to perform one or more of the following determination methods, for example:
  • Manner 1 Determine the path loss of uplink transmission according to the PL-RS corresponding to the smallest PL-RS parameter number in the PL-RS parameter pool.
  • Manner 2 Determine the path loss of uplink transmission according to the path loss reference signal corresponding to the minimum association identifier in the association relationship between the SRS resource indication SRI and the power control parameter.
  • Manner 3 Determine the path loss of uplink transmission according to the reference signal (eg, downlink reference signal, periodic or semi-persistent reference signal, etc.) corresponding to the CORESET with the smallest number.
  • the reference signal eg, downlink reference signal, periodic or semi-persistent reference signal, etc.
  • Mode 4 Determine the path loss of uplink transmission according to the TCI state of the CORESET with the smallest number in the activated bandwidth part (Bandwidth Part, BWP) or the RS resource of type D in the QCL assumption.
  • BWP Bandwidth Part
  • Manner 5 Determine the path loss of uplink transmission according to the reference signal corresponding to the CORESET with the smallest number that is associated with the command information to the same CORESET pool in the activated BWP.
  • Manner 6 Determine the path loss of uplink transmission according to the TCI state of the CORESET with the smallest number associated with the command information in the activated BWP or the periodic RSs resource of type D in the QCL assumption.
  • Mode 7 Determine the path loss of uplink transmission according to the RS resource of the activated TCI state or TCI state codepoint with the smallest PDSCH number.
  • each value of TCI state codepoint can indicate a pre-specified combination of TCI states, and the combination of TCI states includes one or more TCI states.
  • Mode 8 Determine the path loss of uplink transmission according to the RS resource of the activated TCI state or TCI state codepoint with the smallest PDSCH number in the activated downlink BWP.
  • the determining module 502 can determine the PL-RS associated with the beam state according to the PL-RS The PL determines the path loss of the upstream transmission.
  • the path loss determination device provided in this embodiment is used to implement the path loss determination method of the embodiment shown in FIG. 1 , and its implementation principle and technical effect are similar, and details are not repeated here.
  • FIG. 6 is a closed-loop power control determination device provided by an embodiment of the present application.
  • the device includes: a reset module 601; the reset module 601 is used to determine the correlation between a reference signal and a power control parameter is provided, or resets the closed-loop power control adjustment amount corresponding to the closed-loop power control parameter in the relationship between the reference signal and the power control parameter when the power control parameter in the relationship between the reference signal and the power control parameter changes. .
  • the above-mentioned reset module 601 may also reset the reference signal when the correlation relationship between the reference signal and the power control parameter is provided, and when the power control parameter in the correlation relationship between the reference signal and the power control parameter changes.
  • the relationship between the reference signal and the power control parameter includes: the number of the relationship between the reference signal and the power control parameter, and the power control parameter.
  • the power control parameters may include at least one of open-loop power control parameters, closed-loop power control parameters, and path loss measurement parameters.
  • the change of the power control parameter in the correlation relationship between the reference signal and the power control parameter may include at least one of the following: the open-loop power control parameter in the correlation relationship between the reference signal and the power control parameter is changed; The closed-loop power control parameters in the correlation relationship of the power control parameters are changed; the path loss measurement parameters in the correlation relationship between the reference signal and the power control parameters are changed.
  • the association relationship between the reference signal and the power control parameter may be provided by at least one of high-layer parameters or MAC CE.
  • the closed-loop power control determination device provided in this embodiment is used to implement the closed-loop power control determination method of the embodiment shown in FIG. 2 , and the implementation principle and technical effect thereof are similar, and are not repeated here.
  • FIG. 7 is a power headroom determination apparatus provided by an embodiment of the present application. As shown in FIG. 7 , the apparatus includes: a determination module 701; At least one of the accumulation intervals determines a closed-loop power control adjustment of the virtual transmission; and, determining a power headroom of the virtual transmission according to the closed-loop power control adjustment of the virtual transmission.
  • the start time of the virtual transmission may be determined according to the start time of the time slot corresponding to the virtual transmission.
  • the end time of the TPC command accumulation interval of the i0th transmission before the virtual transmission is earlier than the end time of the TPC command accumulation interval of the virtual transmission, where i0 is the smallest positive integer satisfying this condition.
  • the end time of the TPC command accumulation interval of the virtual transmission is determined by the start time of the virtual transmission and a parameter K, where the parameter K is a pre-configured value.
  • the end time of the TPC command accumulation interval of the virtual transmission may include a time point obtained after the start time of the virtual transmission is forward by a time determined by the parameter K, that is, a period of time determined by the parameter K, and the start time of the virtual transmission is forward. Push this period of time, and determine the obtained time point as the end time of the accumulation interval of the TPC command of the virtual transmission.
  • the above-mentioned virtual transmission may include reference PUSCH transmission, or reference SRS transmission.
  • the apparatus for determining the power headroom provided in this embodiment is used to implement the method for determining the power headroom in the embodiment shown in FIG. 3 , and its implementation principle and technical effect are similar, and details are not described herein again.
  • FIG. 8 is a schematic structural diagram of a first communication node provided by an embodiment of the present application.
  • the communication node includes a processor 801 and a memory 802; the number of processors 801 in the communication node may be one or more 8, a processor 801 is taken as an example; the processor 801 and the memory 802 in the communication node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 8 .
  • the memory 802 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the methods in the embodiments of FIG. 1 , FIG. 2 and FIG. 3 of the present application (for example, FIG. The receiving module 501 and the determining module 502 in 5).
  • the processor 801 implements the above-mentioned methods in the embodiments of FIG. 1 , FIG. 2 , and FIG. 3 by running the software programs, instructions and modules stored in the memory 802 .
  • the memory 802 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the set-top box, and the like. Additionally, memory 802 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor in the above-mentioned node may also implement the above-mentioned information indication method through hardware circuits such as logic circuits, gate circuits and the like in the above-mentioned nodes.
  • the embodiments of the present application also provide a readable and writable storage medium for computer storage, where the storage medium stores one or more programs, and when the one or more programs can be executed by one or more processors, the Methods provided by the embodiments of FIG. 1 , FIG. 2 , and FIG. 3 .
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively.
  • Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
  • a processor such as a central processing unit, digital signal processor or microprocessor
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • Computer storage media includes volatile and nonvolatile, removable and non-removable implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data medium.
  • Computer storage media include but are not limited to random access memory (Random Access Memory, RAM), read-only memory (Read-Only Memory, ROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable ROM, EEPROM), flash memory or Other memory technologies, Compact Disk-ROM (CD-ROM), Digital Video Disc (DVD) or other optical disk storage, magnetic cartridges, tapes, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

本文公开一种路径损耗方法、节点及存储介质。该路径损耗方法包括第一通信节点获取命令信息，根据该命令信息确定上行传输的波束状态，在该波束状态关联的用于路径损耗测量的PL-RS未被维护路径损耗测量的情况下，第一通信节点根据预设方式确定上行传输的路径损耗。

Description

路径损耗确定方法、节点和存储介质 技术领域
本申请涉及无线通信技术领域，例如涉及一种路径损耗确定方法、节点和存储介质。
背景技术
第五代移动通信系统新空口技术(New Radio，NR)的关键特征之一就是支持高频段，高频段有丰富的频域资源，但是存在无线信号衰减快导致覆盖小的问题。以波束方式发送信号可以将能量聚集在比较小的空间范围，改善高频段信号的覆盖问题。在波束场景下，随着时间和位置的变化，基站与用户设备(User Equipment，UE)之间的波束对也可能发生变化，因此需要灵活的波束更新机制。波束更新后上行传输的功控参数也需要随之改变，例如测量路径损耗的参考信号，闭环功控参数等。相关技术能支持基本的波束机制，但对于多个信道的波束指示方面，存在波束相关的功控参数信息不明确的问题。
发明内容
本申请提供一种路径损耗确定方法、节点和存储介质，第一通信节点接收指示上行传输的波束状态的命令信息，并在该波束状态关联的用于PL测量的RS处于未维护状态的情况下，通过预设方式确定上行传输的路径损耗。
本申请实施例提供了一种路径损耗确定方法，应用于第一通信节点，该方法包括：
获取命令信息；根据命令信息确定上行传输的波束状态；在波束状态关联的用于路径损耗测量的参考信号PL-RS未被维护PL测量的情况下，根据预设方式确定上行传输的路径损耗。
本申请实施例还提供了一种闭环功控确定方法，应用于第一通信节点，该方法包括：
在参考信号与功控参数的关联关系被提供，或者，在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
本申请实施例还提供了一种功控余量确定方法，应用于第一通信节点，该方法包括：
根据虚拟传输的开始时间与虚拟传输的发送功率控制(Transmit Power Control，TPC)命命令的累积区间中的至少之一确定虚拟传输的闭环功控调整量；根据虚拟传输的闭环功控调整量确定虚拟传输的功率余量。
本申请实施例还提供了一种路径损耗确定装置，该装置包括：
获取模块，用于获取命令信息；确定模块，用于根据命令信息确定上行传输的波束状态；确定模块，用于在波束状态关联的用于路径损耗测量的参考信号PL-RS处于未被维护路径损耗PL测量的情况下，根据预设方式确定上行传输的路径损耗。
本申请实施例还提供了一种闭环功控确定装置，该装置包括：
重置模块，用于在参考信号与功控参数的关联关系被提供，或者，在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
本申请实施例还提供了一种功率余量确定装置，该装置包括：
确定模块，用于根据虚拟传输的开始时间与虚拟传输的TPC命令的累积区间中的至少之一确定虚拟传输的闭环功控调整量；确定模块，还用于根据虚拟传输的闭环功控调整量确定虚拟传输的功率余量。
本申请实施例还提供了一种节点，该节点包括：存储器、处理器，存储在存储器上并可在处理器上运行的程序以及用于实现处理器和所述存储器之间的连接通信的数据总线，在程序被处理器执行时实现上述路径损耗方法，或者上述的闭环功控确定方法，或者上述功控余量确定方法。
本申请实施例还提供了一种可读写存储介质，该存储介质用于计算机存储，存储介质可以存储有一个或者多个程序，在一个或者多个程序可被一个或者多个处理器执行时，以实现上述路径损耗方法，或者上述的闭环功控确定方法，或者上述功控余量确定方法。
本申请提供了一种路径损耗方法、节点及存储介质，该方法包括第一通信节点获取命令信息，根据该命令信息确定上行传输的波束状态，在该波束状态关联的用于路径损耗测量的参考信号PL-RS未被维护路径损耗PL测量的情况下，第一通信节点可以通过预设方式确定上行传输的路径损耗。
附图说明
图1是本申请实施例提供的一种路径损耗方法的流程图。
图2是本申请实施例提供的一种闭环功控确定方法的流程图；
图3是本申请实施例提供的一种功控余量确定方法的流程图；
图4是本申请实施例提供的一种动态调度的PUSCH和虚拟PUSCH传输的闭环功控调整量的TPC命令累计区间的示意图；
图5是本申请实施例提供的一种路径损耗确定装置的结构示意图；
图6是本申请实施例提供的一种闭环功控确定装置的结构示意图；
图7是本申请实施例提供的一种功率余量确定装置的结构示意图；
图8是本申请实施例提供的一种第一通信节点的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行说明。
另外，在本申请实施例中，“可选地”或者“示例性地”等词用于表示作例子、例证或说明。本申请实施例中被描述为“可选地”或者“示例性地”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“可选地”或者“示例性地”等词旨在以具体方式呈现相关概念。
NR支持多波束的方案是指上、下行分别指示波束，数据和业务也是独立指示波束。例如，仅通过TCI state方式指示下行波束，上行波束的指示方式为信道探测参考信号(Sounding Reference Signal，SRS)资源和物理上行链路控制信道(Physical Uplink Control Channel，PUCCH)的资源定义各自的空间关系(spatial relation)，其中，spatial relation参考一个既有的上行参考信号(Up Link Reference Signal，UL RS，即SRS)或下行参考信号(Down Link Reference Signal，DL RS)，PUSCH则参考既有的SRS资源。
多波束技术演进包括Unified TCI架构和Common beam两个方向。其中，在Unified TCI架构中，上、下行传输都使用传输配置指示(Transmission Configuration Indication，TCI)state指示波束。在Common beam中，数据信道和控制信道使用一致的波束。例如，用下行控制信息(Downlink Control Information，DCI)指示的新波束，用于其他多个信道，比如，物理下行链路共享信道(Physical Downlink Shared Channel，PDSCH)、物理下行链路控制信道(Physical Downlink Control Channel，PDCCH)、PUCCH、物理上行链路共享信道(Physical Uplink Shared Channel，PUSCH)等。
在DCI为PDSCH指示的TCI state只考虑下行传输的情况下，对调度下行传输的DCI指示的TCI state用于上行传输并未被明确规定，且未对其关联的路径损耗参考信号(Path Loss Reference Signal，PL-RS)的状态的相关内容进行明确规定。
为了更便于理解本申请实施例提供的方案，下面对本申请方案所涉及的相关概念进行解释：
路径损耗(Path Loss，PL)值是高层滤波的结果，需要对测量PL的参考信号(Reference Signal，RS)进行较长时间的监测。长期演进(Long Term Evolution，LTE)系统中的PL主要是通过小区参考信号(Cell Reference Signal，CRS)测量的，不需要网络侧配置，取决于用户设备(User Equipment，UE)的实现。而在NR系统中，由于不存在CRS，但可用于测量PL的下行RS(例如，信道状态信息参考信号(Channel State Information-Reference Signals，CSI-RS)、同步信号和广播物理信道(Physical Broadcast Channel，PBCH)块(Synchronization Signal and PBCH Block，SSB))都存在多种配置，因此UE基于哪些RS资源测量PL是需要网络侧指示的。考虑到复杂度，仅支持UE在一个服务小区同时最多监测4个用于测量PL的RS。网络侧可以为UE配置多于4个测量PL的RS，但是UE需要同时监测或同时激活的用于测量PL的RS数量不能大于4，其中，监测或激活的用于测量PL的RS也可以称之为维护PL测量的RS。
在相关技术中，无线资源控制(Radio Resource Control，RRC)配置的PL-RS标准中没有规定明确的生效时间，而媒体接入控制单元(Media Access Control Control Element，MAC CE)更新PL-RS需要经过一定的生效时间之后才可以使用，其中，PL-RS是用于PL测量的RS。
基站通过为PUSCH传输指示参考的SRS资源使UE确定PUSCH传输的波束资源以及多输入多输出(Multiple-Input Multiple-Output，MIMO)相关的参数。即UE发送了多个SRS资源，基站评估后选择一个或多个SRS资源指示给UE用作PUSCH传输的参考。UE使用与发送SRS资源相同的参数，如发送空间滤波器，发送PUSCH传输。其中，用作PUSCH传输的参考的SRS资源来自于SRS资源集合，PUSCH传输可以参考一个或多个SRS资源，用SRI(SRS资源指示，SRS resource Indicator)指示，SRI的取值范围取决于SRS资源集合的SRS资源数量以及PUSCH的传输方式。
对于基于码本的PUSCH传输，对应的用途为“Codebook”的SRS资源集合的SRS资源数最大为2，SRI指示SRS资源集合中的一个SRS资源，SRI最多有2种或4种取值。对于非码本的PUSCH传输，对应的用途为“nonCodebook”的SRS资源集合的SRS资源数最大为4，SRI指示SRS资源集合中的SRS资源的任意组合，SRI最多有15种取值。
为支持多波束场景，基站通过RRC为UE配置PUSCH的功控参数，其中包括PUSCH的开环功控参数(目标接收功率P O_UE和路损补偿因子α)的池、PUSCH的PL-RS的池、PUSCH的闭环功控的个数(池)。闭环功控的个数也 可以理解为闭环功控参数的池。例如，闭环功控的个数为2，则闭环功控参数池中包括两个闭环功控编号，分别代表不同的闭环功控。
在本申请实施例中，基站也可以是NodeB，下一代基站(next generation NodeB，gNB)，接入点(Access Point，AP)、或网络侧等概念。
在本申请实施例中，涉及到的参数池可以理解为包括至少一个参数的集合。例如，PL-RS参数池包括至少一个PL-RS参数，每个PL-RS参数由PL-RS参数编号标识。
基站还可以为PUSCH的每个可能的SRI取值配置与以上3种功控参数的关联关系。在SRI与功控参数的关联关系中，SRI并不直接出现，而是与SRI与功控参数的关联编号sri-PUSCH-PowerControlId一一对应，SRI取值与PL-RS的关联关系可以被MAC CE更新。
UE通过PUSCH传输所参考的SRI，查找SRI与功控参数的关联关系可获得PUSCH的功控参数。
PUCCH的功控参数可以包括RRC为UE配置的PUCCH的空间关系集合关联的功控参数、PUCCH资源集合关联的功控参数、每个PUCCH空间关系关联的功控参数，MAC CE激活PUCCH资源，并为激活的PUCCH资源配置相关联的PUCCH空间关系，DCI从MAC CE激活的PUCCH资源中指示PUCCH资源，UE从DCI中获知PUCCH资源关联的PUCCH空间关系，进而确定PUCCH传输的功控参数。
对于PUCCH传输，基站可以为UE配置：PUCCH功控参数池，PUCCH空间关系的池。其中，PUCCH功控参数池包括：PUCCH开环功控参数(目标接收功率P0)的池，PUCCH的PL-RS的池，PUCCH闭环功控的个数(池)。另外，基站还可以配置空间关系与功控参数的关联关系，即为每个空间关系配置关联的功控参数，功控参数可以用PUCCH功控参数池中各功控参数的编号指示。
基站通过MAC CE激活一个或多个PUCCH资源，并为每个激活的PUCCH资源关联RRC配置的PUCCH的空间关系池中的一个PUCCH的空间关系。UE收到激活PUCCH资源的MAC CE后发送HARQ-ACK给基站，之后3个子帧后MAC CE激活PUCCH资源生效。
DCI中指示一个PUCCH资源，UE根据其关联的PUCCH的空间关系，即可得到对应的PUCCH的功控参数。
新规范中PL-RS的配置数量扩展到64个，但是MAC CE激活的PUCCH资源所关联的PL-RS数量不能大于4个。激活的PUCCH资源所关联的PL-RS数量与PUSCH的激活的PL-RS以及SRS的激活的PL-RS的总量不能超过4个。
基于上述概念，图1为本申请实施例提供的一种路径损耗方法的流程图，该方法可以应用于第一通信节点，例如，通信系统中的UE、终端等等。如图1所示，该方法可以包括以下步骤：
S101、获取命令信息。
示例性地，该命令信息可以为基站发送的信息。
可选地，上述命令信息可以包括以下至少之一：DCI、MAC CE、高层信令(例如，RRC信令)。
S102、根据命令信息确定上行传输的波束状态。
示例性地，上述波束状态可以包括准共址(Quasi Co-Location，QCL)状态、TCI state、空间关系信息(spatial relation information)、参考信号信息(Reference Signal Information，RSI)、空间滤波器信息(spatial filter information)、预编码信息(precoding information)中的至少一个。
上行传输包括：PUSCH传输、PUCCH传输或SRS传输。
S103、在波束状态关联的PL-RS未被维护PL测量的情况下，根据预设方式确定上行传输的路径损耗。
上述PL-RS可以理解为用于PL测量的RS，上述PL-RS未被维护PL测量也可以理解为PL-RS的PL测量为未生效状态。例如，用于PL测量的RS被激活后，还没有被测量过，或者正在被监控或测量，但测量的次数没有达到预定次数，那么PL不能被应用。
可选地，上述未被维护PL测量也可以为PL-RS未被激活或者未被监控。
即在波束状态关联的PL-RS未被维护PL测量的情况下，第一通信节点根据预设方式确定上行传输的路径损耗。
在本申请实施例中，第一通信节点获取命令信息，根据该命令信息确定上行传输的波束状态，在该波束状态关联的PL-RS未被维护PL测量的情况下，可以通过预设方式确定上行传输的路径损耗。
在一种实施例中，在上述波束状态未关联PL-RS的情况下，第一通信节点也可以根据预设方式确定上行传输的路径损耗。
在一种实施例中，上述步骤S103中根据预设方式确定上行传输的路径损耗的方式可以包括以下几种方式中的至少一个，例如：
方式一、根据PL-RS参数池中的最小PL-RS参数编号对应的PL-RS参数确定上行传输的路径损耗。例如，根据PUSCH的PL-RS参数池中的最小PL-RS参数编号对应的PL-RS确定上行传输的路径损耗；其中，PL-RS参数池包括至 少一个PL-RS参数，每个PL-RS参数由PL-RS参数编号标识。
方式二、根据SRS资源指示SRI与功控参数的关联关系中的最小关联标识对应的路径损耗参考信号确定上行传输的路径损耗。
方式三、根据编号最小的控制资源集(CORESET，Control Resource Set)对应的参考信号(例如，下行参考信号，周期的或半持续的参考信号等)确定上行传输的路径损耗。
方式四、根据激活的带宽部分(Bandwidth Part，BWP)中编号最小的CORESET的TCI state或QCL假设中的类型D的RS资源确定上行传输的路径损耗。
QCL有四种类型，分别为QCL-typeA、QCL-typeB、QCL-typeC、QCL-type D，这四种类型分别对应不同的QCL参数。例如：QCL-TypeA：{多普勒频移(Doppler shift)，多普勒扩展(Doppler spread)，平均时延(average delay)，时延扩展(delay spread)}；QCL-TypeB：{多普勒频移，多普勒扩展}；QCL-TypeC：{多普勒频移，平均时延}；QCL-TypeD：{空间接收参数Spatial Rx parameter}。
方式五、根据激活的BWP中与命令信息关联至同一CORESET pool的编号最小的CORESET对应的参考信号确定上行传输的路径损耗；例如，命令信息是DCI的情况下，包含DCI的PDCCH的搜索空间对应的CORESET的CORESET pool标识(Identifier，ID)可能对应至少一个CORESET，根据其中编号最小的CORESET对应的参考信号确定上行传输的路径损耗。
方式六、根据激活的BWP中与所述命令信息关联至同一CORESET pool的编号最小的CORESET的TCI state或QCL假设中的type D的周期的RS资源确定上行传输的路径损耗。
方式七、根据PDSCH的编号最小的激活的TCI state或TCI state codepoint的RS资源确定上行传输的路径损耗。TCI state codepoint的每个取值可以指示一个预先指定的TCI state的组合，TCI state的组合包括一个或多个TCI state。
方式八、根据激活的下行BWP中PDSCH的编号最小的激活的TCI state或TCI state codepoint的RS资源确定上行传输的路径损耗。
可选地，第一通信节点也可以先根据预设方式确定上行传输的路径损耗，并在新的PL-RS生效后，使用新的PL-RS确定上行传输的路径损耗。
新的PL-RS为根据命令信息确定的上行传输的波束状态，如TCI state所关联的PL-RS。或者，新的PL-RS可以为根据命令信息确定的上行传输的波束状态，如TCI state中的DL-RS。
第一通信节点接收到命令信息，在波束状态关联的PL-RS未被维护PL测量的情况下，波束状态关联的PL-RS被激活，即PL-RS开始被监控并用于PL测量。在测量PL次数，或PL-RS的发送次数，达到预定次数后，该PL-RS的PL生效，即该PL-RS为被维护PL测量的状态，其中，预定次数可以是3、5，或其他正整数。
在一种实施例中，在波束状态关联的PL-RS被维护PL的情况下，或者，在波束状态关联的PL-RS的PL生效的情况下，第一通信节点可以根据波束状态关联的PL-RS的PL确定上行传输的路径损耗。PL-RS的PL生效时间可以为预先定义的时间，基站配置的时间，或者，该生效时间与第一通信节点的能力有关。
在一种实施例中，在波束状态所关联的PL-RS的PL未生效，或波束状态所关联的PL-RS未被维护PL的情况下，第一通信节点等待PL-RS的PL生效或波束状态所关联的PL-RS被维护PL后才用于上行传输。
或者，限制命令信息指示的用于下行传输的TCI state必须关联功控参数(例如，通过RRC或MAC CE指示)，且PL-RS必须是PL生效状态(或PL-RS被维护PL的状态)。即RRC或MAC CE负责激活PL-RS，DCI指示的PL-RS在PL生效之前不能被上行传输使用。
图2为本申请实施例提供的一种闭环功控确定方法的流程图，该方法可以应用于第一通信节点，例如，通信系统中的UE、终端等等。如图2所示，该方法可以包括以下步骤：
S201、在参考信号与功控参数的关联关系被提供，或者，在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
示例性地，也可以在参考信号与功控参数的关联关系被提供，并且在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
示例性地，上述参考信号可以包括SRI、空间关系、TCI状态、CSI-RS、SSB、SRS中的至少之一，参考信号与功控参数的关联关系可以包括参考信号与功控参数的关联关系编号，和功控参数。其中，参考信号与功控参数的关联关系编号可以与参考信号的取值一一对应，功控参数可以包括开环功控参数、闭环功控参数、路损测量参数中的至少之一。
示例性地，上述开环功控参数可以包括目标接收功率P0，和/或路损补偿因子alpha。开环功控参数由开环功控参数编号指示，用于标识在预配置的开环功控参数池中的一个或一组开环功控参数。例如，一组开环功控参数包括P0和 alpha。
闭环功控参数可以包括闭环功控编号。
路损测量参数可以包括用于测量路损的参考信号PL-RS的资源。路损测量参数由路损测量参数编号指示，用于标识在预配置的路损测量参数池中的一个路损测量参数。
可选地，上述“提供”可以理解为配置、重配置、重提供、更新、激活、或增加。
在一种示例中，上述参考信号与功控参数的关联关系可以被高层参数与MAC CE中的至少之一提供。
在一种示例中，上述参考信号与功控参数的关联关系中的功控参数发生改变可以包括以下几种情况中的至少之一：
例如，参考信号与功控参数的关联关系中的开环功控参数发生改变；参考信号与功控参数的关联关系中的闭环功控参数发生改变；参考信号与功控参数的关联关系中的路损测量参数发生改变。
例如，假设在包含参考信号与功控参数的关联关系编号0的参考信号与功控参数的关联关系中，更新前包含的功控参数为A，那么在参考信号与功控参数的关联关系编号0的参考信号与功控参数的关联关系被重新提供后，包括的功控参数更新为B，其中，A与B不相同，即参考信号与功控参数的关联关系编号0的功控参数发生改变。
下面以示例对上述重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量做描述。
例如，在参考信号为SRI的情况下，可以通过RRC更新SRI与功控参数的关联关系。假设更新前的SRI与功控参数的关联关系包括开环功控参数池中的第一个值，更新后的关联关系包括其他位置的值，例如第二个值，即SRI与功控参数的关联关系中的开环功控参数的取值发生改变，则该SRI与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量被重置。
或者，在参考信号为SRI的情况下，通过MAC CE更新SRI与功控参数的关联关系。假设更新前的SRI与功控参数的关联关系包括路损测量参数池中的第一个路损参数，更新后的关联关系包括路损参数池中的第二个路损参数，即SRI与功控参数的关联关系中的路损测量参数发生改变，则该SRI与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量被重置。
示例性地，在上述重置过程中，开环功控参数被改变、闭环功控参数被改 变、或路损测量参数被改变可以包括：各参数池未改变而新的参数在参数池中的编号改变，或者新的参数在参数池中的编号未改变但参数池发生改变。从本质上理解，以上参数的改变即是指参考信号与功控参数的关联关系中的对应功控参数发生了改变。
上述重置的闭环功控调整量也可以理解为功控调整状态。其中，闭环功控调整量可以由TPC命令确定，其支持累积式和绝对值式两种方式，累积式闭环功控调整量是新的TPC命令指示的值与历史闭环功控调整量之和，而绝对值式的闭环功控调整量只等于新的TPC命令指示的值。
可选地，重置闭环功控调整量可以包括将闭环功控调整量的值置为0。例如，PUSCH功控参数中的闭环功控调整量f(k,l)＝0，其中，k＝0,1,...i，i为重置时PUSCH传输机会的编号，l是闭环功控编号。
为了使基站获知UE的发送功率水平与最大发送功率的差距，引入了PHR(Power Headroom Report，功率余量报告)。PHR定义为最大发送功率与上行传输需要的功率之差。上行传输需要的功率在计算时仅考虑功控相关参数，而不需要考虑最大发送功率的限制，因此可能大于最大发送功率。在本申请实施例中，PHR与PH(Power Headroom，功率余量)可以互换。
根据传输类型的不同支持不同类型的PHR：
type 1PHR是基于PUSCH传输计算的。基于真实的PUSCH传输计算的PHR叫作type1的真实PHR，基于PUSCH参考的格式计算的PHR叫作type1的虚拟PHR。
type 3PHR是基于SRS传输计算的。基于SRS传输计算的PHR也包括真实PHR和虚拟PHR。Type 3的PHR用于没有配置PUSCH或PUCCH的载波/小区。Type 3的PHR也分为真实的PHR和虚拟的PHR，分别基于真实的SRS传输或SRS参考格式计算。
计算虚拟PHR时也要考虑闭环功控调整量，例如PUSCH传输中闭环功控调整量是f(i,l)，其中，i是PUSCH传输时机编号，l是PUSCH传输的闭环功控编号。SRS传输中闭环功控调整量是h(i,l)，其中，i是SRS传输时机编号，l是SRS传输的闭环功控编号。
图3为本申请实施例提供的一种功控余量确定方法的流程图，该方法可以应用于第一通信节点，例如，通信系统中的UE、终端等等。如图3所示，该方法可以包括以下步骤：
S301、根据虚拟传输的开始时间与虚拟传输的TPC命令的累积区间中的至少之一确定虚拟传输的闭环功控调整量。
在本申请实施例中，由于虚拟传输本身并没有传输开始时间，因此虚拟传输的开始时间是根据虚拟传输对应的时隙的开始时间确定的。
可选地，上述虚拟传输的TPC命令累积区间的结束时间可以由虚拟传输的开始时间与参数K确定，其中，参数K是预先配置的值。例如，由RRC参数k2的最小值确定。
S302、根据虚拟传输的闭环功控调整量确定虚拟传输的功率余量。
基于上述步骤S301确定虚拟传输的闭环功控调整量后，可以基于该闭环功控调整量确定虚拟传输的功率余量。
在本申请实施例中，根据虚拟传输的开始时间与TPC命令的累积区间中的至少之一确定虚拟传输的闭环功控调整量后，可以基于该虚拟传输的闭环功控调整量确定虚拟传输的功率余量。
可选地，在上述方案中，虚拟传输之前第i0个传输的TPC命令累积区间的结束时间早于虚拟传输的TPC命令累积区间的结束时间，其中，i0是满足这一条件的最小正整数。第i0个传输的开始时间在该虚拟传输开始时间之前，第i0个传输包括虚拟的或者真实的与虚拟传输同类型的传输。例如虚拟传输是PUSCH传输，则虚拟传输之前第i0个传输是指虚拟的或者真实的PUSCH传输。当虚拟传输是SRS传输时，则虚拟传输之前第i0个传输是指虚拟的或者真实的SRS传输。
在一种示例中，上述虚拟传输的TPC命令累积区间的结束时间可以包括由虚拟传输的开始时间向前一段由参数K确定的时间后得到的时间点，即由参数K确定一段时间，并在虚拟传输的开始时间向前推这一段时间，将得到的时间点确定为虚拟传输的TPC命令累计区间的结束时间。
在一种示例中，上述虚拟传输可以包括参考PUSCH传输，或者参考SRS传输。例如，在PUSCH传输中的闭环功控调整量f(i，l)中，i为PUSCH传输时机的编号，l是PUSCH传输的闭环功控编号；在SRS传输中的闭环功控调整量h(i，l)中，i为SRS传输时机的编号，l是SRS传输的闭环功控编号。即虚拟传输时机i可用于计算虚拟传输的功率余量，从更新f(i，l)的需求出发，i与真实PUSCH的传输时机一起进行累加计数。
示例性地，假设上述虚拟传输为虚拟PUSCH传输的情况下，那么PUSCH的闭环功控调整量可以表示为：
Figure PCTCN2021108805-appb-000001
其中，下标c表示服务小区，下标f表示载波，下标b表示上行链路带宽部分(Uplink BWP，UL BWP)，l表示PUSCH闭环功控编号，δ PUSCH,b,f,c的值由预定表格确定。
Figure PCTCN2021108805-appb-000002
表示用户设备在一段时间内收到的对于PUSCH的闭环功控编号l的TPC命令值的集合Di中的TPC命令值的和。该一段时间是指在服务小区c的载波f的UL BWP b上的PUSCH传输时机i-i 0之前K PUSCH(i-i 0)-l符号到PUSCH传输时机i之前K PUSCH(i)符号，其中，i 0＞0是满足PUSCH传输时机i-i 0之前K PUSCH(i-i 0)符号比PUSCH传输时机i之前K PUSCH(i)早的最小整数。
在上述PUSCH为参考PUSCH传输的情况下，PUSCH传输时机的开始时间可以为该参考PUSCH传输所在的时隙的开始位置。即，虚拟传输的开始时间由虚拟传输对应的时隙的开始时间确定。相应地，在这一情况下，K PUSCH(i)(即K值)是由高层配置的参数k2的最小值确定的参数。例如，K PUSCH(i)为一个时隙(slot)中的符号数量
Figure PCTCN2021108805-appb-000003
与服务小区c的载波f的激活的UL BWP b上配置的PUSCH-ConfigCommon参数中的k2的最小值之积。即，虚拟传输的TPC命令累计区间结束点在虚拟传输开始时间向前一段由k2的最小值确定的时间。
下面以示例对上述过程做描述。
如图4所示，DCI#1、DCI#2、DCI#5分别调度PUSCH传输i-2、PUSCH传输i和PUSCH传输i+1，DCI#1、DCI#2、DCI#5分别指示TPC1、TPC2、TPC5；DCI#3、DCI#4为DCI格式2_2，分别指示TPC3、TPC4，但不调度PUSCH传输；PUSCH传输i-1是虚拟传输，没有对应的DCI。按上述规则，PUSCH传输i-1、PUSCH传输i以及PUSCH传输i+1对应的闭环功控调整量的TPC命令的累积时间段以及f(i-1)、f(i)和f(i+1)的计算方式分别如下所示：
f(i-1)＝f(i-2)+TPC2+TPC3                                         (2)
f(i)＝f(i-2)+TPC2                                                (3)
f(i+1)＝f(i)+TPC3+TPC4+TPC5                                    (4)
图4中标注的Kmin是由参数k2的最小值确定的时间量。
图5为本申请实施例提供的一种路径损耗确定装置，如图5所示，该装置包括：接收模块501、确定模块502；其中，接收模块501，用于接收命令信息；确定模块502，用于根据命令信息确定上行传输的波束状态；确定模块502，还用于在波束状态关联的PL-RS未被维护PL测量的情况下，根据预设方式确定上行传输的路径损耗。
在一种示例中，上述命令信息包括DCI、MAC CE、高层信令中的至少之一。
在一种示例中，上述波束状态可以包括准共址(Quasi Co-Location，QCL)状态、TCI state、空间关系信息(spatial relation information)、参考信号信息(Reference Signal Information，RSI)、空间滤波器信息(spatial filter information)、预编码信息(precoding information)中的至少一个。
在一种示例中，上述确定模块502，可以用于执行以下一个或多个确定方式，例如：
方式一、根据PL-RS参数池中的最小PL-RS参数编号对应的PL-RS确定上行传输的路径损耗。
方式二、根据SRS资源指示SRI与功控参数的关联关系中的最小关联标识对应的路径损耗参考信号确定上行传输的路径损耗。
方式三、根据编号最小的CORESET对应的参考信号(例如，下行参考信号，周期的或半持续的参考信号等)确定上行传输的路径损耗。
方式四、根据激活的带宽部分(Bandwidth Part，BWP)中编号最小的CORESET的TCI state或QCL假设中的type D的RS资源确定上行传输的路径损耗。
方式五、根据激活的BWP中与命令信息关联至同一CORESET pool的编号最小的CORESET对应的参考信号确定上行传输的路径损耗。
方式六、根据激活的BWP中与命令信息关联至同一CORESET pool的编号最小的CORESET的TCI state或QCL假设中的type D的周期的RSs资源确定上行传输的路径损耗。
方式七、根据PDSCH的编号最小的激活的TCI state或TCI state codepoint的RS资源确定上行传输的路径损耗。其中，TCI state codepoint的每个取值可以指示一个预先指定的TCI state的组合，TCI state的组合包括一个或多个TCI state。
方式八、根据激活的下行BWP中PDSCH的编号最小的激活的TCI state或TCI state codepoint的RS资源确定上行传输的路径损耗。
在一种示例中，在波束状态关联的PL-RS被维护PL的情况下，或者，在波束状态关联的PL-RS的PL生效的情况下，确定模块502可以根据波束状态关联的PL-RS的PL确定上行传输的路径损耗。
本实施例提供的路径损耗确定装置用于实现图1所示实施例的路径损耗确定方法，其实现原理和技术效果类似，此处不再赘述。
图6为本申请实施例提供的一种闭环功控确定装置，如图6所示，该装置 包括：重置模块601；该重置模块601，用于在参考信号与功控参数的关联关系被提供，或者，在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
示例性地，上述重置模块601也可以在参考信号与功控参数的关联关系被提供，并且在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
参考信号与功控参数的关联关系，包括：参考信号与功控参数的关联关系编号，和功控参数。
功控参数可以包括开环功控参数、闭环功控参数、路损测量参数中的至少之一。
示例性地，上述参考信号与功控参数的关联关系中的功控参数发生改变可以包括以下至少之一：参考信号与功控参数的关联关系中的开环功控参数发生改变；参考信号与功控参数的关联关系中的闭环功控参数发生改变；参考信号与功控参数的关联关系中的路损测量参数发生改变。
可选地，参考信号与功控参数的关联关系可以被高层参数，或MAC CE至少之一提供。
本实施例提供的闭环功控确定装置用于实现图2所示实施例的闭环功控确定方法，其实现原理和技术效果类似，此处不再赘述。
图7为本申请实施例提供的一种功率余量确定装置，如图7所示，该装置包括：确定模块701；确定模块701，用于根据虚拟传输的开始时间与虚拟传输的TPC命令的累积区间中的至少之一确定虚拟传输的闭环功控调整量；以及，根据虚拟传输的闭环功控调整量确定虚拟传输的功率余量。
示例性地，上述虚拟传输的开始时间可以是根据虚拟传输对应的时隙的开始时间确定的。
在一种示例中，虚拟传输之前第i0个传输的TPC命令累积区间的结束时间早于虚拟传输的TPC命令累积区间的结束时间，其中，i0是满足这一条件的最小正整数。
在一种示例中，虚拟传输的TPC命令累积区间的结束时间由虚拟传输的开始时间和参数K确定，参数K为预先配置的值。
虚拟传输的TPC命令累积区间的结束时间可以包括由虚拟传输的开始时间向前一段由参数K确定的时间后得到的时间点，即由参数K确定一段时间，并 在虚拟传输的开始时间向前推这一段时间，将得到的时间点确定为虚拟传输的TPC命令累计区间的结束时间。
上述虚拟传输可以包括参考PUSCH传输，或参考SRS传输。
本实施例提供的功率余量确定装置用于实现图3所示实施例的功率余量确定方法，其实现原理和技术效果类似，此处不再赘述。
图8为本申请实施例提供的一种第一通信节点的结构示意图，如图8所示，该通信节点包括处理器801和存储器802；通信节点中处理器801的数量可以是一个或多个，图8中以一个处理器801为例；通信节点中的处理器801和存储器802可以通过总线或其他方式连接，图8中以通过总线连接为例。
存储器802作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请图1、图2、图3实施例中的方法对应的程序指令/模块(例如，图5中的接收模块501和确定模块502)。处理器801通过运行存储在存储器802中的软件程序、指令以及模块实现上述的图1、图2、图3实施例中的方法。
存储器802可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据机顶盒的使用所创建的数据等。此外，存储器802可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
在一种示例中，在可能的情况下，上述节点中的处理器也可以通过其内部的逻辑电路、门电路等硬件电路实现上述的信息指示方法。
本申请实施例还提供了一种可读写存储介质，用于计算机存储，存储介质存储有一个或者多个程序，在一个或者多个程序可被一个或者多个处理器执行时，可以实现如图1、图2、图3实施例所提供的方法。
上文中所公开方法中的全部或一些步骤、通信节点中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。一些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。术语计算机存储介质包括在用于存 储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于随机存取存储器(Random Access Memory，RAM)、只读存储器(Read-Only Memory，ROM)、带电可擦可编程只读存储器(Electrically Erasable Programmable ROM，EEPROM)、闪存或其他存储器技术、光盘只读存储器(Compact Disk-ROM，CD-ROM)、数字多功能盘(Digital Video Disc，DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。

Claims (17)

  1. 一种路径损耗确定方法，应用于第一通信节点，包括：
    获取命令信息；
    根据所述命令信息确定上行传输的波束状态；
    在所述波束状态关联的用于路径损耗测量的路径损耗参考信号PL-RS未被维护路径损耗测量的情况下，根据预设方式确定所述上行传输的路径损耗。
  2. 根据权利要求1所述的方法，其中，所述命令信息包括以下至少之一：下行控制信息DCI、媒体接入控制单元MAC CE、高层信令。
  3. 根据权利要求1所述的方法，其中，所述波束状态包括以下至少之一：准共址状态、传输配置指示状态、空间关系信息、参考信号信息、空间滤波器信息、预编码信息。
  4. 根据权利要求1所述的方法，其中，所述根据预设方式确定所述上行传输的路径损耗，包括以下之一：
    根据PL-RS参数池中的最小PL-RS参数编号对应的PL-RS确定所述上行传输的路径损耗；
    根据探测参考信号资源指示信息与功控参数的关联关系中的最小关联标识对应的PL-RS确定所述上行传输的路径损耗；
    根据编号最小的控制资源集CORESET对应的参考信号确定所述上行传输的路径损耗；
    根据激活的带宽部分BWP中编号最小的CORESET的传输配置指示TCI state或根据激活的BWP中编号最小的CORESET的准共址QCL假设中的类型D的参考信号资源确定所述上行传输的路径损耗；
    根据激活的BWP中与所述命令信息关联至同一CORESET pool的编号最小的CORESET对应的参考信号确定所述上行传输的路径损耗；
    根据激活的BWP中与所述命令信息关联至同一CORESET pool的编号最小的CORESET的TCI state或根据激活的BWP中与所述命令信息关联至同一CORESET pool的编号最小的CORESET的QCL假设中的类型D的周期的参考信号资源确定所述上行传输的路径损耗。
  5. 根据权利要求1所述的方法，还包括：
    在所述波束状态关联的PL-RS被维护路径损耗的情况下，根据所述波束状态关联的PL-RS的PL确定所述上行传输的路径损耗；或者，
    在所述波束状态关联的PL-RS的路径损耗生效的情况下，根据所述波束状 态关联的PL-RS的路径损耗确定所述上行传输的路径损耗。
  6. 一种闭环功控确定方法，应用于第一通信节点，包括：
    在参考信号与功控参数的关联关系被提供，或者，在参考信号与功控参数的关联关系中的功控参数发生改变的情况下，重置所述参考信号与功控参数的关联关系中的闭环功控参数对应的闭环功控调整量。
  7. 根据权利要求6所述的方法，其中，所述参考信号与功控参数的关联关系，包括：参考信号与功控参数的关联关系编号和功控参数；
    其中，所述功控参数包括以下至少之一：开环功控参数、闭环功控参数、路损测量参数。
  8. 根据权利要求6或7所述的方法，其中，所述参考信号与功控参数的关联关系中的功控参数发生改变，包括以下至少之一：
    所述参考信号与功控参数的关联关系中的开环功控参数发生改变；
    所述参考信号与功控参数的关联关系中的闭环功控参数发生改变；
    所述参考信号与功控参数的关联关系中的路损测量参数发生改变。
  9. 根据权利要求6-8任一项所述的方法，其中，所述参考信号与功控参数的关联关系被高层参数，或媒体接入控制单元MAC CE中的至少之一提供。
  10. 一种功控余量确定方法，应用于第一通信节点，包括：
    根据虚拟传输的开始时间与所述虚拟传输的发送功率控制TPC命令的累积区间中的至少之一确定所述虚拟传输的闭环功控调整量；
    根据所述虚拟传输的闭环功控调整量确定所述虚拟传输的功率余量。
  11. 根据权利要求10所述的方法，其中，所述虚拟传输的开始时间是根据所述虚拟传输对应的时隙的开始时间确定的。
  12. 根据权利要求10或11所述的方法，其中，所述虚拟传输的TPC命令累积区间满足以下条件：所述虚拟传输之前第i0个传输的TPC命令累积区间的结束时间早于所述虚拟传输的TPC命令累积区间的结束时间，其中，i0是在所述虚拟传输的TPC命令累积区间满足所述条件的情况下的最小正整数。
  13. 根据权利要求12所述的方法，其中，所述虚拟传输的TPC命令累积区间的结束时间由所述虚拟传输的开始时间和参数K确定，所述参数K为预先配置的值。
  14. 根据权利要求13所述的方法，其中，所述虚拟传输的TPC命令累积区间的结束时间包括由所述虚拟传输的开始时间向前一段时间得到的时间点，所 述一段时间由参数K确定，所述参数K为预先配置的值。
  15. 根据权利要求14所述的方法，其中，所述虚拟传输包括参考物理上行共享信道传输，或参考信道探测参考信号传输。
  16. 一种节点，包括：处理器以及存储器，在存储于所述存储器中的程序被所述处理器执行时实现如权利要求1-5任一项所述的路径损耗方法，或者如权利要求6-9任一项所述的闭环功控确定方法，或者如权利要求10-15所述的功控余量确定方法。
  17. 一种可读写存储介质，设置为计算机存储，其中，所述存储介质存储有至少一个程序，所述至少一个程序可被至少一个处理器执行，以实现如权利要求1-5任一项所述的路径损耗方法，或者如权利要求6-9任一项所述的闭环功控确定方法，或者如权利要求10-15所述的功控余量确定方法。
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