WO2019169590A1 - Srs功率余量上报的方法、终端设备及计算机存储介质 - Google Patents

Srs功率余量上报的方法、终端设备及计算机存储介质 Download PDF

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Publication number
WO2019169590A1
WO2019169590A1 PCT/CN2018/078347 CN2018078347W WO2019169590A1 WO 2019169590 A1 WO2019169590 A1 WO 2019169590A1 CN 2018078347 W CN2018078347 W CN 2018078347W WO 2019169590 A1 WO2019169590 A1 WO 2019169590A1
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WO
WIPO (PCT)
Prior art keywords
srs
srs resource
target
resource set
terminal device
Prior art date
Application number
PCT/CN2018/078347
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English (en)
French (fr)
Inventor
陈文洪
史志华
Original Assignee
Oppo广东移动通信有限公司
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Publication date
Priority to FIEP18908576.4T priority Critical patent/FI3745764T3/fi
Priority to CN202010419440.6A priority patent/CN111641961B/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP18908576.4A priority patent/EP3745764B1/en
Priority to RU2020131811A priority patent/RU2753573C1/ru
Priority to SG11202008648RA priority patent/SG11202008648RA/en
Priority to BR112020018026-2A priority patent/BR112020018026A2/pt
Priority to MX2020009266A priority patent/MX2020009266A/es
Priority to JP2020546501A priority patent/JP7153078B2/ja
Priority to CN201880064819.0A priority patent/CN111316686A/zh
Priority to CA3093136A priority patent/CA3093136C/en
Priority to PCT/CN2018/078347 priority patent/WO2019169590A1/zh
Priority to KR1020207027001A priority patent/KR102469602B1/ko
Priority to AU2018412121A priority patent/AU2018412121A1/en
Priority to TW108107643A priority patent/TW201939990A/zh
Publication of WO2019169590A1 publication Critical patent/WO2019169590A1/zh
Priority to US16/988,416 priority patent/US11121840B2/en

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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
    • 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
    • H04W52/365—Power headroom reporting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink 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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • 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
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • 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
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to the field of information processing technologies, and in particular, to a method, a terminal device, and a computer storage medium for reporting SRS power headroom.
  • the SRS power headroom is the difference between the maximum transmission power allowed by the UE and the transmission power of the currently calculated SRS.
  • the terminal needs to perform Power Headroom Report (PHR) for the PUSCH and the SRS, respectively.
  • PHR Power Headroom Report
  • the terminal not only needs to perform PH (Power Headroom) reporting on the carrier that currently transmits the PUSCH or the SRS, but also performs PH reporting on the carrier that does not transmit the PUSCH or the SRS, thereby providing a reference for the network side to schedule or power control on the carrier. .
  • the terminal transmits an SRS on a certain carrier at a certain time the corresponding PH can be expressed as:
  • P CMAX,f,c (i) is the maximum transmit power of the terminal
  • the calculation result in the braces is the expected transmit power calculated by the terminal according to the actual SRS transmission parameter on the carrier at that time.
  • the terminal does not transmit SRS on a certain carrier at a certain time
  • the corresponding PH can be expressed as:
  • the calculation result in the braces is the expected transmit power of the terminal on the carrier (no SRS transmission parameter).
  • the PH is calculated separately for each SRS resource set q s and corresponds to each SRS resource in the SRS resource set.
  • multiple SRS resources within one SRS resource set may be transmitted on different OFDM symbols (referred to as TDM), or may be transmitted simultaneously on the same OFDM symbol (referred to as FDM), or may be one FDM within a subset of resources, TDM between subsets of resources.
  • TDM OFDM symbols
  • FDM OFDM symbols
  • FDM OFDM symbols
  • different PH calculation methods are needed to obtain the correct PHR.
  • the maximum transmit power allowed by different antenna array groups may be different.
  • the current PHR does not support PH reporting for each antenna array group.
  • an embodiment of the present invention provides a method, a terminal device, and a computer storage medium for reporting SRS power headroom.
  • An embodiment of the present invention provides a method for reporting a SRS power headroom, which is applied to a terminal device, where the method includes:
  • Target SRS resource set is a SRS resource set on the target carrier or the target bandwidth part BWP;
  • the calculated PH of the target SRS resource set is reported.
  • the embodiment of the invention provides a terminal device, including:
  • the processing unit calculates an expected SRS transmission power on the at least one SRS resource included in the target SRS resource set, where the target SRS resource set is a SRS resource set on the target carrier or the target bandwidth part BWP; according to the at least one SRS resource The expected SRS transmission power is calculated, and the power headroom PH of the target SRS resource set is calculated;
  • the communication unit reports the calculated PH of the target SRS resource set.
  • a terminal device provided by an embodiment of the present invention includes: a processor and a memory for storing a computer program capable of running on a processor,
  • processor is configured to perform the steps of the foregoing method when the computer program is run.
  • a computer storage medium is provided by the embodiment of the present invention.
  • the computer storage medium stores computer executable instructions, and the foregoing method steps are implemented when the computer executable instructions are executed.
  • the technical solution of the embodiment of the present invention can calculate the PH of the target SRS resource set for the SRS resource in the target SRS resource set on the target carrier or the target bandwidth part, and report the PH to the network side; Obtain accurate SRS power headroom information for subsequent SRS scheduling and power control.
  • FIG. 1 is a schematic flowchart of a method for reporting a SRS power headroom according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a hardware architecture according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for reporting a SRS power headroom, which is applied to a terminal device. As shown in FIG. 1, the method includes:
  • Step 101 Calculate an expected SRS transmission power on at least one SRS resource included in the target SRS resource set, where the target SRS resource set is a SRS resource set on the target carrier or the target bandwidth part BWP;
  • Step 102 Calculate a power headroom PH of the target SRS resource set according to the expected SRS transmission power on the at least one SRS resource.
  • Step 103 Report the calculated PH of the target SRS resource set.
  • step 101 the expected SRS transmission power on the at least one SRS resource included in the target SRS resource set is calculated, including:
  • the terminal device transmits the SRS on the SRS resource at the time of calculating the PH, calculating the expected condition on the SRS resource based on the transmission parameter of the sent SRS and the power control parameter configured for the SRS resource or the target SRS resource set SRS transmission power.
  • the terminal calculates the transmission parameter based on the transmitted SRS and the power control parameter configured for the SRS resource or the target SRS resource set in which the SRS resource is located.
  • the expected SRS transmission power on the SRS resource here, the power control parameters may include an open loop power control parameter and a closed loop power control parameter.
  • the expected SRS transmission power is:
  • the parameters in the formula are the transmission parameters of the SRS transmitted on the SRS resource and the power control parameters configured for the SRS resource set q s where the SRS resource is located, where M SRS,f,c (i) represents the transmission of the SRS.
  • Bandwidth ⁇ is the subcarrier spacing of SRS transmission
  • P O_SRS, f, c (q s ) is the target received power
  • ⁇ SRS, f, c (q s ) is the path loss factor
  • PL f, c (q s ) is The path loss estimate
  • h f,c (i,l) is the SRS closed-loop power adjustment factor.
  • the method further includes:
  • the expected SRS transmission power on the SRS resource is calculated based on the power control parameter configured for the SRS resource or the target SRS resource set.
  • the terminal calculates the expectation on the SRS resource based on the power control parameter configured for the SRS resource or the target SRS resource set in which the SRS resource is located.
  • SRS transmission power here, the power control parameters generally only include open loop power control parameters.
  • the expected SRS transmission power is:
  • the parameter in the formula is a power control parameter configured for the SRS resource set q s0 where the SRS resource is located, where P O_SRS, f, c (q s0 ) is the target received power, ⁇ SRS, f, c (q s0 ) For the path loss factor, PL f,c (q s0 ) is the path loss estimate, and h f,c (i,l) is the SRS closed-loop power adjustment factor.
  • the at least one SRS resource is one of the following:
  • the SRS resources of the SRS are transmitted by using the same antenna array group in the target SRS resource set.
  • the method further includes: when the target SRS resource set is used for uplink non-codebook transmission, the at least one SRS resource is all SRS resources in the target SRS resource set.
  • the method includes: when the target SRS resource set is used for uplink codebook transmission or beam management or antenna handover, the at least one SRS resource is any one of the target SRS resource sets.
  • the target SRS resource set is used for uplink non-codebook transmission, uplink codebook transmission, beam management, or antenna handover, and can be separately configured for each SRS resource set by using high layer signaling.
  • the method further includes:
  • the terminal device When the terminal device calculates the PH, the terminal device sends the SRS on the target carrier or the target BWP, or the target carrier or the target BWP is the currently activated carrier or BWP, the target SRS resource set is the current target or the target BWP.
  • An SRS resource set for SRS transmission, or the target SRS resource set is a SRS resource set associated with a current PUSCH transmission.
  • the target SRS resource set is the lowest on the target carrier or the target BWP.
  • the set of SRS resources, or the set of target SRS resources is the set of SRS resources with the lowest set index on the most recently activated BWP on the target carrier.
  • the target SRS resource set is currently used on the target carrier or the target BWP.
  • the set of SRS resources transmitted by the SRS, or the set of target SRS resources is a set of SRS resources associated with the current PUSCH transmission.
  • the target SRS resource set is an SRS resource set used for codebook transmission; if the current PUSCH transmission is a non-codebook based PUSCH transmission, The target SRS resource set is a SRS resource set for non-codebook transmission; if the current PUSCH transmission is an antenna handover based PUSCH transmission, the target SRS resource set is an SRS resource set for antenna handover;
  • the target SRS resource set is the SRS resource with the lowest set index on the target carrier or the target BWP.
  • the set, or the set of target SRS resources is the set of SRS resources with the lowest set index on the most recently activated BWP on the target carrier.
  • the SRS resource set with the lowest set index may be an SRS resource set with the SRS resource set ID equal to 0 on the target carrier or the target BWP. If the smallest ID in the current SRS resource set is not 0, which is 3, then the SRS resource set with ID 3 can be selected.
  • the power headroom PH of the target SRS resource set is calculated according to the expected SRS sending power on the at least one SRS resource, and the following scenarios may exist:
  • a difference between a maximum transmit power and a sum of expected SRS transmit powers on the at least one SRS resource is used as a PH of the target SRS resource set.
  • the terminal uses the difference between the maximum transmit power and the first power as the PH of the target SRS resource set, where the first power is the sum of the expected SRS transmit powers on the at least one SRS resource.
  • the maximum transmit power is the maximum transmit power supported by the terminal, or the maximum transmit power supported by the terminal on the carrier where the target SRS resource set is located, or the antenna array group used by the terminal to send the SRS on the target SRS resource set. The maximum transmit power supported.
  • P CMAX,f,c (i) is the maximum transmit power allowed by the terminal on carrier c
  • K is the number of said at least one SRS resource.
  • the at least one SRS resource is:
  • the same OFDM symbol is occupied; or the at least one SRS resource transmits the SRS using the same antenna array group.
  • the method may be used when the at least one SRS resource occupies the same OFDM symbol, or the at least one SRS resource uses the same antenna array group to transmit the SRS.
  • this method can accurately calculate the power headroom when the terminal simultaneously transmits multiple SRS resources; in the latter case, the total power on one antenna array group can be accurately calculated by this method. margin.
  • the method may support performing PH reporting separately for each target SRS resource set according to the maximum transmit power of each antenna array group.
  • the terminal uses the difference between the maximum transmit power and the second power as the PH of the target SRS resource set, where the second power is the expected SRS transmit power on the at least one SRS resource.
  • the maximum transmit power is one of the following:
  • the maximum transmit power supported by the terminal device is the maximum transmit power supported by the terminal device
  • P CMAX,f,c (i) is the maximum transmit power of the terminal, and K is the number of the at least one SRS resource.
  • any one SRS resource can be used to calculate the PH.
  • the at least one SRS resource is: occupying different OFDM symbols; or, the occupied bandwidth is different in size. That is, the method may be used when the at least one SRS resource occupies different OFDM symbols, or the at least one SRS resource occupies a different bandwidth.
  • the terminal only reports the PH of one SRS resource, and the terminal can obtain the PH of other SRS resources according to this.
  • Different sets of target SRS resources correspond to different antenna array groups
  • the calculating the PH of the target SRS resource set calculated includes:
  • PH reporting is performed separately for each target SRS resource set.
  • the solution provided in this scenario may also support PH reporting for each target SRS resource set according to the maximum transmit power of each antenna array group.
  • the difference between the maximum transmit power on the first SRS resource and the expected SRS transmit power of the first SRS resource is taken as the PH of the first SRS resource;
  • the PH of the first SRS resource is included in the PH of the target SRS resource set.
  • the terminal uses the difference between the maximum transmit power of the first SRS resource and the expected SRS transmit power of the first SRS resource as the PH of the first SRS resource.
  • the PH of the target SRS resource set includes the PH of the first SRS resource.
  • the maximum transmit power on the first SRS resource may be: a maximum transmit power supported on the antenna array group used for transmitting the SRS on the first SRS resource. That is, the maximum transmit power on the first SRS resource is the maximum transmit power supported on the antenna array group used for transmitting the SRS on the first SRS resource.
  • the maximum transmit power on the first SRS resource may also be the maximum transmit power supported by the terminal, or the maximum transmit power supported by the terminal on the carrier where the target SRS resource set is located.
  • the method further includes: using each SRS resource in the target SRS resource set as the first SRS resource. That is, the PH of each of the at least one SRS resource (that is, the SRS resource in the target SRS resource set as the first SRS resource) is calculated, and the PH obtained by the at least one SRS resource is separately obtained.
  • the PH is reported as the PH of the target SRS resource set.
  • the PH of the target SRS resource set is actually a set of multiple PH values (corresponding to different SRS resources respectively).
  • the method may support separately performing PH reporting on SRS resources on different panels.
  • the method may be used in the case where the at least one SRS resource transmits an SRS by using different antenna array groups.
  • step 103 is explained below:
  • the reporting the calculated PH of the target SRS resource set includes: reporting the PH of the target SRS resource set as the PH of the target carrier or the SRS on the target BWP; and not reporting the target carrier or the target BWP PH corresponding to other SRS resources.
  • reporting the calculated PH of the target SRS resource set includes: reporting the PH corresponding to each target SRS resource set configured on the target carrier or the target BWP.
  • the PH of the target SRS resource set can be calculated for the SRS resource in the target SRS resource set on the target carrier or the target bandwidth part, and the PH is reported to the network side; SRS power headroom information for subsequent SRS scheduling and power control.
  • the present invention can also support separate PHR for different panels.
  • the embodiment of the invention provides a terminal device. As shown in FIG. 2, the method includes:
  • the processing unit 21 is configured to calculate an expected SRS transmission power on the at least one SRS resource included in the target SRS resource set, where the target SRS resource set is a SRS resource set on the target carrier or the target bandwidth part BWP; according to the at least one SRS The expected SRS transmission power on the resource, and calculating the power headroom PH of the target SRS resource set;
  • the communication unit 22 reports the calculated PH of the target SRS resource set.
  • the processing unit 21 if the terminal device sends an SRS on the SRS resource at the time of calculating the PH, based on the transmission parameter of the sent SRS and the power configured for the SRS resource or the target SRS resource set
  • the control parameter calculates an expected SRS transmission power on the SRS resource.
  • the terminal calculates the transmission parameter based on the transmitted SRS and the power control parameter configured for the SRS resource or the target SRS resource set in which the SRS resource is located.
  • the expected SRS transmission power on the SRS resource here, the power control parameters may include an open loop power control parameter and a closed loop power control parameter.
  • the expected SRS transmission power is:
  • the parameters in the formula are the transmission parameters of the SRS transmitted on the SRS resource and the power control parameters configured for the SRS resource set q s where the SRS resource is located, where M SRS,f,c (i) represents the transmission of the SRS.
  • Bandwidth ⁇ is the subcarrier spacing of SRS transmission
  • P O_SRS, f, c (q s ) is the target received power
  • ⁇ SRS, f, c (q s ) is the path loss factor
  • PL f, c (q s ) is The path loss estimate
  • h f,c (i,l) is the SRS closed-loop power adjustment factor.
  • the processing unit 21 if the terminal device does not send the SRS on the SRS resource at the time of calculating the PH, calculates the SRS resource based on the power control parameter configured for the SRS resource or the target SRS resource set.
  • the expected SRS transmit power.
  • the terminal calculates the expectation on the SRS resource based on the power control parameter configured for the SRS resource or the target SRS resource set in which the SRS resource is located.
  • SRS transmission power here, the power control parameters generally only include open loop power control parameters.
  • the expected SRS transmission power is:
  • the parameter in the formula is a power control parameter configured for the SRS resource set q s0 where the SRS resource is located, where P O_SRS, f, c (q s0 ) is the target received power, ⁇ SRS, f, c (q s0 ) For the path loss factor, PL f,c (q s0 ) is the path loss estimate, and h f,c (i,l) is the SRS closed-loop power adjustment factor.
  • the at least one SRS resource is one of the following:
  • the SRS resources of the SRS are transmitted by using the same antenna array group in the target SRS resource set.
  • the target SRS resource set is used for uplink non-codebook transmission, uplink codebook transmission, beam management, or antenna handover, and can be separately configured for each SRS resource set by using high layer signaling.
  • the target SRS resource set is the lowest on the target carrier or the target BWP.
  • the set of SRS resources, or the set of target SRS resources is the set of SRS resources with the lowest set index on the most recently activated BWP on the target carrier.
  • the target SRS resource set is currently used on the target carrier or the target BWP.
  • the set of SRS resources transmitted by the SRS, or the set of target SRS resources is a set of SRS resources associated with the current PUSCH transmission.
  • the target SRS resource set is an SRS resource set used for codebook transmission; if the current PUSCH transmission is a non-codebook based PUSCH transmission, The target SRS resource set is a SRS resource set for non-codebook transmission; if the current PUSCH transmission is an antenna handover based PUSCH transmission, the target SRS resource set is an SRS resource set for antenna handover;
  • the target SRS resource set is the SRS resource with the lowest set index on the target carrier or the target BWP.
  • the set, or the set of target SRS resources is the set of SRS resources with the lowest set index on the most recently activated BWP on the target carrier.
  • the SRS resource set with the lowest set index may be an SRS resource set with the SRS resource set ID equal to 0 on the target carrier or the target BWP. If the smallest ID in the current SRS resource set is not 0, which is 3, then the SRS resource set with ID 3 can be selected.
  • the foregoing calculates the power headroom PH of the target SRS resource set according to the expected SRS transmission power on the at least one SRS resource, and the following scenarios may exist:
  • the processing unit 21 uses, as the PH of the target SRS resource set, a difference between a maximum transmission power and a sum of expected SRS transmission powers on the at least one SRS resource.
  • the terminal uses the difference between the maximum transmit power and the first power as the PH of the target SRS resource set, where the first power is the sum of the expected SRS transmit powers on the at least one SRS resource.
  • the maximum transmit power is the maximum transmit power supported by the terminal, or the maximum transmit power supported by the terminal on the carrier where the target SRS resource set is located, or the antenna array group used by the terminal to send the SRS on the target SRS resource set. The maximum transmit power supported.
  • P CMAX,f,c (i) is the maximum transmit power allowed by the terminal on carrier c
  • K is the number of said at least one SRS resource.
  • the at least one SRS resource is:
  • the same OFDM symbol is occupied; or the at least one SRS resource transmits the SRS using the same antenna array group.
  • the foregoing process may be used when the at least one SRS resource occupies the same OFDM symbol, or the case where the at least one SRS resource uses the same antenna array group to transmit the SRS.
  • this method can accurately calculate the power headroom when the terminal simultaneously transmits multiple SRS resources; in the latter case, the total power on one antenna array group can be accurately calculated by this method. margin.
  • the method may support performing PH reporting separately for each target SRS resource set according to the maximum transmit power of each antenna array group.
  • the processing unit 21 uses, as a PH of the target SRS resource set, a difference between a maximum transmit power and a maximum or minimum expected transmit power among the expected SRS transmit powers on the at least one SRS resource.
  • the terminal uses the difference between the maximum transmit power and the second power as the PH of the target SRS resource set, where the second power is the expected SRS transmit power on the at least one SRS resource.
  • the maximum transmit power is one of the following:
  • the maximum transmit power supported by the terminal device is the maximum transmit power supported by the terminal device
  • P CMAX,f,c (i) is the maximum transmit power of the terminal, and K is the number of the at least one SRS resource.
  • any one SRS resource can be used to calculate the PH.
  • the at least one SRS resource is: occupying different OFDM symbols; or, the occupied bandwidth is different in size. That is, the foregoing process may be used when the at least one SRS resource occupies different OFDM symbols, or the case where the at least one SRS resource occupies a different bandwidth.
  • the terminal only reports the PH of one SRS resource, and the terminal can obtain the PH of other SRS resources according to this.
  • Different sets of target SRS resources correspond to different antenna array groups
  • the calculating the PH of the target SRS resource set calculated includes:
  • PH reporting is performed separately for each target SRS resource set.
  • the solution provided in this scenario may also support PH reporting for each target SRS resource set according to the maximum transmit power of each antenna array group.
  • the processing unit 21 as the difference between the maximum transmit power on the first SRS resource and the expected SRS transmit power of the first SRS resource in the at least one SRS resource The PH of an SRS resource;
  • the PH of the first SRS resource is included in the PH of the target SRS resource set.
  • the terminal uses the difference between the maximum transmit power of the first SRS resource and the expected SRS transmit power of the first SRS resource as the PH of the first SRS resource.
  • the PH of the target SRS resource set includes the PH of the first SRS resource.
  • the maximum transmit power on the first SRS resource may be: a maximum transmit power supported on the antenna array group used for transmitting the SRS on the first SRS resource. That is, the maximum transmit power on the first SRS resource is the maximum transmit power supported on the antenna array group used for transmitting the SRS on the first SRS resource.
  • the maximum transmit power on the first SRS resource may also be the maximum transmit power supported by the terminal, or the maximum transmit power supported by the terminal on the carrier where the target SRS resource set is located.
  • the processing unit 21 uses each SRS resource in the target SRS resource set as the first SRS resource. That is, the PH of each of the at least one SRS resource (that is, the SRS resource in the target SRS resource set as the first SRS resource) is calculated, and the PH obtained by the at least one SRS resource is separately obtained.
  • the PH is reported as the PH of the target SRS resource set.
  • the PH of the target SRS resource set is actually a set of multiple PH values (corresponding to different SRS resources respectively).
  • the method may support separately performing PH reporting on SRS resources on different panels.
  • the foregoing process may be used in the case where the at least one SRS resource transmits an SRS by using different antenna array groups.
  • the communication unit 22 reports the PH of the target SRS resource set as the PH of the target carrier or the SRS on the target BWP; and does not report the PH corresponding to the target carrier or other SRS resources on the target BWP.
  • reporting the calculated PH of the target SRS resource set includes: reporting the PH corresponding to each target SRS resource set configured on the target carrier or the target BWP.
  • the PH of the target SRS resource set can be calculated for the SRS resource in the target SRS resource set on the target carrier or the target bandwidth part, and the PH is reported to the network side; SRS power headroom information for subsequent SRS scheduling and power control.
  • the present invention can also support separate PHR for different panels.
  • the embodiment of the present invention further provides a hardware component architecture of the terminal device.
  • the system includes at least one processor 31, a memory 32, and at least one network interface 33.
  • the various components are coupled together by a bus system 34.
  • bus system 34 is used to implement connection communication between these components.
  • the bus system 34 includes a power bus, a control bus, and a status signal bus in addition to the data bus.
  • various buses are labeled as bus system 34 in FIG.
  • the memory 32 in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • memory 32 stores elements, executable modules or data structures, or a subset thereof, or their extension set:
  • the processor 31 is configured to be able to process the method steps of the foregoing first embodiment, and details are not described herein.
  • the embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the method steps of the foregoing first embodiment are implemented.
  • Embodiments of the Invention may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a standalone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • embodiments of the invention are not limited to any specific combination of hardware and software.
  • an embodiment of the present invention further provides a computer storage medium, wherein a computer program is configured, and the computer program is configured to execute a data scheduling method according to an embodiment of the present invention.

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Abstract

本发明公开了一种SRS功率余量上报的方法、终端设备及计算机存储介质，其中方法包括：计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；上报计算得到的所述目标SRS资源集合的PH。

Description

SRS功率余量上报的方法、终端设备及计算机存储介质 技术领域
本发明涉及信息处理技术领域，尤其涉及一种SRS功率余量上报的方法、终端设备及计算机存储介质。
背景技术
SRS功率余量即UE允许的最大传输功率与当前计算得到的SRS的传输功率之间的差值。在NR中，终端需要针对PUSCH和SRS分别进行功率余量上报(Power Headroom Report，PHR)。终端不仅需要针对当前传输了PUSCH或SRS的载波进行PH(Power Headroom)上报，同时也要针对未传输PUSCH或SRS的载波进行PH上报，从而为网络侧在该载波上的调度或者功率控制提供参考。
如果终端在某时刻在某个载波上传输了SRS，则相应的PH可以表示为：
PH type3,f,c(i,q s,l)＝P CMAX,f,c(i)-{P O_SRS,f,c(q s)+10log 10(2 μ·M SRS,f,c(i))+α SRS,f,c(q s)·PL f,c(q s)+h f,c(i,l)}
其中P CMAX,f,c(i)为终端的最大发送功率，大括号中的计算结果为终端根据该时刻该载波上实际的SRS传输参数计算得到的期望发送功率。
如果终端在某时刻在某个载波上未传输SRS，则相应的PH可以表示为：
Figure PCTCN2018078347-appb-000001
其中
Figure PCTCN2018078347-appb-000002
为终端在该载波上假设的最大发送功率，大括号内的计算结果为终端在该载波上的预期发送功率(无SRS传输参数)。
上述PH是针对每个SRS资源集合q s分别计算的，对应于该SRS资源集合内的每个SRS资源。但是，一个SRS资源集合内的多个SRS资源可能是在不同的OFDM符号上传输的(称为TDM)，也可能是在同一个OFDM符号上同时传输的(称为FDM)，也可能是一个资源子集内FDM，资源子集之间TDM的。此时，针对TDM和FDM两种复用方式需要采用不同的PH计算方式，才能得到正确的PHR。同时，不同的天线阵列组Panel允许的最大发送功率可能不同，目前的PHR不支持针对每个天线阵列组Panel分别进行PH上报。
发明内容
为解决上述技术问题，本发明实施例提供了一种SRS功率余量上报的 方法、终端设备及计算机存储介质。
本发明实施例提供一种SRS功率余量上报的方法，应用于终端设备，所述方法包括：
计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；
根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
上报计算得到的所述目标SRS资源集合的PH。
本发明实施例提供一种终端设备，包括：
处理单元，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
通信单元，上报计算得到的所述目标SRS资源集合的PH。
本发明实施例提供的一种终端设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
其中，所述处理器用于运行所述计算机程序时，执行前述方法的步骤。
本发明实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现前述方法步骤。
本发明实施例的技术方案，就能够针对目标载波或目标带宽部分上的目标SRS资源集合中的SRS资源进行计算得到目标SRS资源集合的PH，并将PH上报至网络侧；从而可以令网络侧得到准确的SRS功率余量信息，从而进行后续的SRS调度和功率控制。
附图说明
图1为本发明实施例提供的一种SRS功率余量上报的方法流程示意图；
图2为本发明实施例终端设备组成结构示意图；
图3为本发明实施例的一种硬件架构示意图。
具体实施方式
为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。
实施例一、
本发明实施例提供了一种SRS功率余量上报的方法，应用于终端设备，如图1所示，所述方法包括：
步骤101：计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；
步骤102：根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
步骤103：上报计算得到的所述目标SRS资源集合的PH。
具体来说，上述步骤101中，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率，包括：
如果计算PH的时刻所述终端设备在SRS资源上发送SRS，则基于发送的SRS的传输参数和为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算所述SRS资源上的预期SRS发送功率。
也就是说，如果计算PH的时刻终端在一个SRS资源上发送SRS，则终端基于发送的SRS的传输参数和为所述SRS资源或所述SRS资源所在的目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率；这里，功率控制参数可以包括开环功率控制参数和闭环功率控制参数。
例如，如果计算PH的时刻终端在某个SRS资源上发送SRS，则预期SRS发送功率为：
P exp,f,c(i,q s,l)＝{P O_SRS,f,c(q s)+10log 10(2 μ·M SRS,f,c(i))+α SRS,f,c(q s)·PL f,c(q s)+h f,c(i,l)}
其中公式中的参数是所述SRS资源上传输的SRS的传输参数和为所述SRS资源所在的SRS资源集合q s配置的功率控制参数，其中M SRS,f,c(i)表示SRS的传输带宽，μ为SRS传输的子载波间隔，P O_SRS,f,c(q s)为目标接收功率，α SRS,f,c(q s)为路损因子，PL f,c(q s)为路损估计值，h f,c(i,l)为SRS闭环功率调整因子。
具体来说，上述步骤101中，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率，还包括：
如果计算PH的时刻所述终端设备不在SRS资源上发送SRS，则基于为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率。
也就是说，如果计算PH的时刻终端不在某个SRS资源上发送SRS，则终端基于为所述SRS资源或所述SRS资源所在的目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率；这里，功率控制参数一般只包含开环功率控制参数。
例如，如果计算PH的时刻终端不在某个SRS资源上发送SRS，则预期SRS发送功率为：
P exp,f,c(i,q s,l)＝{P O_SRS,f,c(q s0)+α SRS,f,c(q s0)·PL f,c(q s0)+h f,c(i,l)}
其中公式中的参数是为所述SRS资源所在的SRS资源集合q s0配置的 功率控制参数，其中P O_SRS,f,c(q s0)为目标接收功率，α SRS,f,c(q s0)为路损因子，PL f,c(q s0)为路损估计值，h f,c(i,l)为SRS闭环功率调整因子。
所述至少一个SRS资源为以下之一：
所述目标SRS资源集合内占用同样OFDM符号的SRS资源；
所述目标SRS资源集合内占用不同OFDM符号的SRS资源；
所述目标SRS资源集合内占用带宽大小不同的SRS资源；
所述目标SRS资源集合内采用不同天线阵列组发送SRS的SRS资源；
所述目标SRS资源集合内采用相同天线阵列组发送SRS的SRS资源。
该方法还包括：当所述目标SRS资源集合用于上行非码本传输时，所述至少一个SRS资源为所述目标SRS资源集合中的全部SRS资源。
该方法包括：当所述目标SRS资源集合用于上行码本传输或者波束管理或者天线切换时，所述至少一个SRS资源为所述目标SRS资源集合中的任意一个SRS资源。
其中，目标SRS资源集合是用于上行非码本传输，还是上行码本传输，还是波束管理，还是天线切换，可以通过高层信令为每个SRS资源集合分别配置。
所述方法还包括：
当计算PH的时刻所述终端设备在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP时，所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合，或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
当计算PH的时刻所述终端设备不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP时，所述目标SRS资源集合为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
即如果计算PH的时刻终端在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP，则所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合，或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
具体的，如果当前的PUSCH传输为基于码本的PUSCH传输，则所述目标SRS资源集合为用于码本传输的SRS资源集合；如果当前的PUSCH传输为基于非码本的PUSCH传输，则所述目标SRS资源集合为用于非码本传输的SRS资源集合；如果当前的PUSCH传输为基于天线切换的PUSCH传输，则所述目标SRS资源集合为用于天线切换的SRS资源集合；
如果计算PH的时刻终端不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP，则所述目标SRS资源集合 为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
其中，集合索引最低的SRS资源集合，可以是所述目标载波或目标BWP上SRS资源集合ID等于0的SRS资源集合。如果，当前SRS资源集合中最小的ID并非0，为3，那么就可以选择ID为3的SRS资源集合。
前述步骤102中，所述根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH，可以存在以下多种场景：
场景1、
将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率的和，之间的差值作为所述目标SRS资源集合的PH。
也就是说，终端将最大发送功率与第一功率之间的差值，作为所述目标SRS资源集合的PH，这里第一功率为所述至少一个SRS资源上的预期SRS发送功率的和。
所述最大发送功率为终端支持的最大发送功率，或终端在所述目标SRS资源集合所在的载波上支持的最大发送功率，或终端在所述目标SRS资源集合上发送SRS所用的天线阵列组所支持的最大发送功率。
例如：
Figure PCTCN2018078347-appb-000003
其中P CMAX,f,c(i)为终端在载波c上允许的最大发送功率，K为所述至少一个SRS资源的数量。
所述至少一个SRS资源为：
占用相同OFDM符号；或者，所述至少一个SRS资源采用相同天线阵列组发送SRS。
也就是说，本方法可以用于所述至少一个SRS资源占用相同OFDM符号的情况，或者所述至少一个SRS资源采用相同天线阵列组发送SRS的情况。对于前一种情况，采用这种方法可以准确计算出终端同时传输多个SRS资源时的功率余量；对于后一种情况，采用这种方法可以准确计算出一个天线阵列组上的总的功率余量。
如果不同目标SRS资源集合对应于不同的天线阵列组(panel)，则本方法可以支持根据每个天线阵列组各自的最大发送功率对每个目标SRS资源集合分别进行PH上报。
场景2、
将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率中最大或最小的预期发送功率之间的差值，作为所述目标SRS资源集合的PH。
也就是说，本场景中，终端将最大发送功率与第二功率之间的差值，作为所述目标SRS资源集合的PH，这里第二功率为所述至少一个SRS资 源上的预期SRS发送功率中最大或者最小的预期SRS发送功率。
所述最大发送功率为以下之一：
所述终端设备支持的最大发送功率；
所述终端设备在所述目标SRS资源集合所在的载波上支持的最大发送功率；
所述终端设备在所述目标SRS资源集合上发送SRS所用的天线阵列组上支持的最大发送功率。
例如：
Figure PCTCN2018078347-appb-000004
其中P CMAX,f,c(i)为终端的最大发送功率，K为所述至少一个SRS资源的数量。
如果一个目标SRS资源集合内的所有SRS资源上的预期SRS发送功率相同，则可以用任意一个SRS资源来计算PH。
所述至少一个SRS资源为：占用不同OFDM符号；或者，所占用带宽大小不同。也就是说，本方法可以用于所述至少一个SRS资源占用不同OFDM符号的情况，或者所述至少一个SRS资源占用带宽大小不同的情况。此时终端只上报其中一个SRS资源的PH，终端可以据此得到其他SRS资源的PH。
不同的所述目标SRS资源集合对应不同的天线阵列组；
相应的，所述上报计算得到的所述目标SRS资源集合的PH，包括：
根据每一个天线阵列组的最大发送功率，对每一个目标SRS资源集合分别进行PH上报。
也就是说，如果不同目标SRS资源集合对应于不同的panel，则本场景中提供的方案还可以支持根据每个天线阵列组各自的最大发送功率对每个目标SRS资源集合分别进行PH上报。
场景3、将所述至少一个SRS资源中的第一SRS资源上的最大发送功率、与所述第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH；
将所述第一SRS资源的PH包含在所述目标SRS资源集合的PH中。
本场景为：终端将所述至少一个SRS资源中的第一SRS资源上最大发送功率与该第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH，所述目标SRS资源集合的PH包含所述第一SRS资源的PH。
所述第一SRS资源上的最大发送功率可以为：在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。即所述第一SRS资源上的最大发送功率为在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。
另外，所述第一SRS资源上的最大发送功率也可以是终端支持的最大发送功率，或终端在所述目标SRS资源集合所在的载波上支持的最大发送功率。
所述方法还包括：将所述目标SRS资源集合中的各个SRS资源分别作为所述第一SRS资源。也就是说，计算所述至少一个SRS资源中的各个SRS资源(也就是将目标SRS资源集合中的各个SRS资源分别作为第一SRS资源)的PH，将所述至少一个SRS资源分别得到的PH作为所述目标SRS资源集合的PH进行PH上报。这里，所述目标SRS资源集合的PH实际上是多个PH值(分别对应不同的SRS资源)组成的集合。
如果所述目标SRS资源集合包含对应于多个panel的多个SRS资源，则本方法可以支持对不同panel上的SRS资源单独进行PH上报。
本方法可以用于所述至少一个SRS资源采用不同天线阵列组发送SRS的情况。
基于上述描述，下面针对步骤103进行说明：
所述上报计算得到的所述目标SRS资源集合的PH，包括：将所述目标SRS资源集合的PH作为目标载波或目标BWP上的SRS的PH进行上报；并且不上报所述目标载波或目标BWP上的其他SRS资源所对应的PH。
所述上报计算得到的所述目标SRS资源集合的PH，包括：上报目标载波或目标BWP上配置的每一个SRS资源集合分别对应的PH。
可见，通过上述方案，就能够针对目标载波或目标带宽部分上的目标SRS资源集合中的SRS资源进行计算得到目标SRS资源集合的PH，并将PH上报至网络侧；从而可以令网络侧得到准确的SRS功率余量信息，从而进行后续的SRS调度和功率控制。
同时，本发明也可以支持针对不同的panel分别进行PHR。
实施例二、
本发明实施例提供了一种终端设备，如图2所示，所述方法包括：
处理单元21，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
通信单元22，上报计算得到的所述目标SRS资源集合的PH。
具体来说，所述处理单元21，如果计算PH的时刻所述终端设备在SRS资源上发送SRS，则基于发送的SRS的传输参数和为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算所述SRS资源上的预期SRS发送功率。
也就是说，如果计算PH的时刻终端在一个SRS资源上发送SRS，则终端基于发送的SRS的传输参数和为所述SRS资源或所述SRS资源所在的目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率；这里，功率控制参数可以包括开环功率控制参数和闭环功率控制参数。
例如，如果计算PH的时刻终端在某个SRS资源上发送SRS，则预期SRS发送功率为：
P exp,f,c(i,q s,l)＝{P O_SRS,f,c(q s)+10log 10(2 μ·M SRS,f,c(i))+α SRS,f,c(q s)·PL f,c(q s)+h f,c(i,l)}
其中公式中的参数是所述SRS资源上传输的SRS的传输参数和为所述SRS资源所在的SRS资源集合q s配置的功率控制参数，其中M SRS,f,c(i)表示SRS的传输带宽，μ为SRS传输的子载波间隔，P O_SRS,f,c(q s)为目标接收功率，α SRS,f,c(q s)为路损因子，PL f,c(q s)为路损估计值，h f,c(i,l)为SRS闭环功率调整因子。
具体来说，所述处理单元21，如果计算PH的时刻所述终端设备不在SRS资源上发送SRS，则基于为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率。
也就是说，如果计算PH的时刻终端不在某个SRS资源上发送SRS，则终端基于为所述SRS资源或所述SRS资源所在的目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率；这里，功率控制参数一般只包含开环功率控制参数。
例如，如果计算PH的时刻终端不在某个SRS资源上发送SRS，则预期SRS发送功率为：
P exp,f,c(i,q s,l)＝{P O_SRS,f,c(q s0)+α SRS,f,c(q s0)·PL f,c(q s0)+h f,c(i,l)}
其中公式中的参数是为所述SRS资源所在的SRS资源集合q s0配置的功率控制参数，其中P O_SRS,f,c(q s0)为目标接收功率，α SRS,f,c(q s0)为路损因子，PL f,c(q s0)为路损估计值，h f,c(i,l)为SRS闭环功率调整因子。
所述至少一个SRS资源为以下之一：
所述目标SRS资源集合内占用同样OFDM符号的SRS资源；
所述目标SRS资源集合内占用不同OFDM符号的SRS资源；
所述目标SRS资源集合内占用带宽大小不同的SRS资源；
所述目标SRS资源集合内采用不同天线阵列组发送SRS的SRS资源；
所述目标SRS资源集合内采用相同天线阵列组发送SRS的SRS资源。
所述处理单元21，当所述目标SRS资源集合用于上行非码本传输时，所述至少一个SRS资源为所述目标SRS资源集合中的全部SRS资源。
所述处理单元21，当所述目标SRS资源集合用于上行码本传输或者波束管理或者天线切换时，所述至少一个SRS资源为所述目标SRS资源集合中的任意一个SRS资源。也就是说，如果所述目标SRS资源集合用于上行码本传输或者波束管理或者天线切换，所述至少一个SRS资源为所述目标SRS资源集合中的任意一个SRS资源。
其中，目标SRS资源集合是用于上行非码本传输，还是上行码本传输，还是波束管理，还是天线切换，可以通过高层信令为每个SRS资源集合分别配置。
所述处理单元21，当计算PH的时刻所述终端设备在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP时，所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合，或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
当计算PH的时刻所述终端设备不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP时，所述目标SRS资源集合为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
即如果计算PH的时刻终端在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP，则所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合，或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
具体的，如果当前的PUSCH传输为基于码本的PUSCH传输，则所述目标SRS资源集合为用于码本传输的SRS资源集合；如果当前的PUSCH传输为基于非码本的PUSCH传输，则所述目标SRS资源集合为用于非码本传输的SRS资源集合；如果当前的PUSCH传输为基于天线切换的PUSCH传输，则所述目标SRS资源集合为用于天线切换的SRS资源集合；
如果计算PH的时刻终端不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP，则所述目标SRS资源集合为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
其中，集合索引最低的SRS资源集合，可以是所述目标载波或目标BWP上SRS资源集合ID等于0的SRS资源集合。如果，当前SRS资源集合中最小的ID并非0，为3，那么就可以选择ID为3的SRS资源集合。
前述根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH，可以存在以下多种场景：
场景1、
所述处理单元21，将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率的和，之间的差值作为所述目标SRS资源集合的PH。
也就是说，终端将最大发送功率与第一功率之间的差值，作为所述目标SRS资源集合的PH，这里第一功率为所述至少一个SRS资源上的预期SRS发送功率的和。
所述最大发送功率为终端支持的最大发送功率，或终端在所述目标SRS资源集合所在的载波上支持的最大发送功率，或终端在所述目标SRS资源集合上发送SRS所用的天线阵列组所支持的最大发送功率。
例如：
Figure PCTCN2018078347-appb-000005
其中P CMAX,f,c(i)为终端在载波c上允许的最大发送功率，K为所述至少一个SRS资源的数量。
所述至少一个SRS资源为：
占用相同OFDM符号；或者，所述至少一个SRS资源采用相同天线阵列组发送SRS。
也就是说，上述处理可以用于所述至少一个SRS资源占用相同OFDM符号的情况，或者所述至少一个SRS资源采用相同天线阵列组发送SRS的情况。对于前一种情况，采用这种方法可以准确计算出终端同时传输多个SRS资源时的功率余量；对于后一种情况，采用这种方法可以准确计算出一个天线阵列组上的总的功率余量。
如果不同目标SRS资源集合对应于不同的天线阵列组(panel)，则本方法可以支持根据每个天线阵列组各自的最大发送功率对每个目标SRS资源集合分别进行PH上报。
场景2、
所述处理单元21，将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率中最大或最小的预期发送功率之间的差值，作为所述目标SRS资源集合的PH。
也就是说，本场景中，终端将最大发送功率与第二功率之间的差值，作为所述目标SRS资源集合的PH，这里第二功率为所述至少一个SRS资源上的预期SRS发送功率中最大或者最小的预期SRS发送功率。
所述最大发送功率为以下之一：
所述终端设备支持的最大发送功率；
所述终端设备在所述目标SRS资源集合所在的载波上支持的最大发送功率；
所述终端设备在所述目标SRS资源集合上发送SRS所用的天线阵列组上支持的最大发送功率。
例如：
Figure PCTCN2018078347-appb-000006
其中P CMAX,f,c(i)为终端的最大发送功率，K为所述至少一个SRS资源的数量。
如果一个目标SRS资源集合内的所有SRS资源上的预期SRS发送功率相同，则可以用任意一个SRS资源来计算PH。
所述至少一个SRS资源为：占用不同OFDM符号；或者，所占用带宽大小不同。也就是说，上述处理可以用于所述至少一个SRS资源占用不同OFDM符号的情况，或者所述至少一个SRS资源占用带宽大小不同的情况。此时终端只上报其中一个SRS资源的PH，终端可以据此得到其他SRS资源的PH。
不同的所述目标SRS资源集合对应不同的天线阵列组；
相应的，所述上报计算得到的所述目标SRS资源集合的PH，包括：
根据每一个天线阵列组的最大发送功率，对每一个目标SRS资源集合分别进行PH上报。
也就是说，如果不同目标SRS资源集合对应于不同的panel，则本场景中提供的方案还可以支持根据每个天线阵列组各自的最大发送功率对每个目标SRS资源集合分别进行PH上报。
场景3、所述处理单元21，将所述至少一个SRS资源中的第一SRS资源上的最大发送功率、与所述第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH；
将所述第一SRS资源的PH包含在所述目标SRS资源集合的PH中。
本场景为：终端将所述至少一个SRS资源中的第一SRS资源上最大发送功率与该第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH，所述目标SRS资源集合的PH包含所述第一SRS资源的PH。
所述第一SRS资源上的最大发送功率可以为：在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。即所述第一SRS资源上的最大发送功率为在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。
另外，所述第一SRS资源上的最大发送功率也可以是终端支持的最大发送功率，或终端在所述目标SRS资源集合所在的载波上支持的最大发送功率。
所述处理单元21，将所述目标SRS资源集合中的各个SRS资源分别作为所述第一SRS资源。也就是说，计算所述至少一个SRS资源中的各个SRS资源(也就是将目标SRS资源集合中的各个SRS资源分别作为第一SRS资源)的PH，将所述至少一个SRS资源分别得到的PH作为所述目标SRS资源集合的PH进行PH上报。这里，所述目标SRS资源集合的PH实际上是多个PH值(分别对应不同的SRS资源)组成的集合。
如果所述目标SRS资源集合包含对应于多个panel的多个SRS资源，则本方法可以支持对不同panel上的SRS资源单独进行PH上报。
上述处理可以用于所述至少一个SRS资源采用不同天线阵列组发送SRS的情况。
基于上述描述，下面上报处理方式进行说明：
所述通信单元22，将所述目标SRS资源集合的PH作为目标载波或目标BWP上的SRS的PH进行上报；并且不上报所述目标载波或目标BWP上的其他SRS资源所对应的PH。
所述上报计算得到的所述目标SRS资源集合的PH，包括：上报目标载波或目标BWP上配置的每一个SRS资源集合分别对应的PH。
可见，通过上述方案，就能够针对目标载波或目标带宽部分上的目标SRS资源集合中的SRS资源进行计算得到目标SRS资源集合的PH，并将 PH上报至网络侧；从而可以令网络侧得到准确的SRS功率余量信息，从而进行后续的SRS调度和功率控制。
同时，本发明也可以支持针对不同的panel分别进行PHR。
本发明实施例还提供了一种终端设备的硬件组成架构，如图3所示，包括：至少一个处理器31、存储器32、至少一个网络接口33。各个组件通过总线系统34耦合在一起。可理解，总线系统34用于实现这些组件之间的连接通信。总线系统34除包括数据总线之外，还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见，在图3中将各种总线都标为总线系统34。
可以理解，本发明实施例中的存储器32可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。
在一些实施方式中，存储器32存储了如下的元素，可执行模块或者数据结构，或者他们的子集，或者他们的扩展集：
操作系统321和应用程序322。
其中，所述处理器31配置为：能够处理前述实施例一的方法步骤，这里不再进行赘述。
本发明实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实施前述实施例一的方法步骤。
本发明实施例上述装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机程序，该计算机程序配置为执行本发明实施例的数据调度方法。
尽管为示例目的，已经公开了本发明的优选实施例，本领域的技术人员将意识到各种改进、增加和取代也是可能的，因此，本发明的范围应当不限于上述实施例。

Claims (40)

  1. 一种SRS功率余量上报的方法，应用于终端设备，所述方法包括：
    计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；
    根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
    上报计算得到的所述目标SRS资源集合的PH。
  2. 根据权利要求1所述的方法，其中，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率，包括：
    如果计算PH的时刻所述终端设备在SRS资源上发送SRS，则基于发送的SRS的传输参数和为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算所述SRS资源上的预期SRS发送功率。
  3. 根据权利要求1所述的方法，其中，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率，包括：
    如果计算PH的时刻所述终端设备不在SRS资源上发送SRS，则基于为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率。
  4. 根据权利要求1所述的方法，其中，所述至少一个SRS资源为以下之一：
    所述目标SRS资源集合内占用同样OFDM符号的SRS资源；
    所述目标SRS资源集合内占用不同OFDM符号的SRS资源；
    所述目标SRS资源集合内占用带宽大小不同的SRS资源；
    所述目标SRS资源集合内采用不同天线阵列组发送SRS的SRS资源；
    所述目标SRS资源集合内采用相同天线阵列组发送SRS的SRS资源。
  5. 根据权利要求1所述的方法，其中，所述方法还包括：
    当所述目标SRS资源集合用于上行非码本传输时，所述至少一个SRS资源为所述目标SRS资源集合中的全部SRS资源。
  6. 根据权利要求1所述的方法，其中，所述方法还包括：
    当所述目标SRS资源集合用于上行码本传输或者波束管理或者天线切换时，所述至少一个SRS资源为所述目标SRS资源集合中的任意一个SRS资源。
  7. 根据权利要求1所述的方法，其中，所述方法还包括：
    当计算PH的时刻所述终端设备在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP时，所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合， 或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
  8. 根据权利要求1所述的方法，其中，所述方法还包括：
    当计算PH的时刻所述终端设备不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP时，所述目标SRS资源集合为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
  9. 根据权利要求1所述的方法，其中，根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH，包括：
    将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率的和，之间的差值作为所述目标SRS资源集合的PH。
  10. 根据权利要求9所述的方法，其中，所述至少一个SRS资源为：
    占用相同OFDM符号；或者，所述至少一个SRS资源采用相同天线阵列组发送SRS。
  11. 根据权利要求1所述的方法，其中，所述根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH，包括：
    将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率中最大或最小的预期发送功率之间的差值，作为所述目标SRS资源集合的PH。
  12. 根据权利要求9或11所述的方法，其中，所述最大发送功率为以下之一：
    所述终端设备支持的最大发送功率；
    所述终端设备在所述目标SRS资源集合所在的载波上支持的最大发送功率；
    所述终端设备在所述目标SRS资源集合上发送SRS所用的天线阵列组上支持的最大发送功率。
  13. 根据权利要求11所述的方法，其中，所述至少一个SRS资源为：
    占用不同OFDM符号；或者，所占用带宽大小不同。
  14. 根据权利要求9或11所述的方法，其中，不同的所述目标SRS资源集合对应不同的天线阵列组；
    相应的，所述上报计算得到的所述目标SRS资源集合的PH，包括：
    根据每一个天线阵列组的最大发送功率，对每一个目标SRS资源集合分别进行PH上报。
  15. 根据权利要求1所述的方法，其中，所述根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量 PH，包括：
    将所述至少一个SRS资源中的第一SRS资源上的最大发送功率、与所述第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH；
    将所述第一SRS资源的PH包含在所述目标SRS资源集合的PH中。
  16. 根据权利要求15所述的方法，其中，所述第一SRS资源上的最大发送功率为：在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。
  17. 根据权利要求15所述的方法，其中，所述方法还包括：
    将所述目标SRS资源集合中的各个SRS资源分别作为所述第一SRS资源。
  18. 根据权利要求1所述的方法，其中，所述上报计算得到的所述目标SRS资源集合的PH，包括：
    将所述目标SRS资源集合的PH作为目标载波或目标BWP上的SRS的PH进行上报；并且不上报所述目标载波或目标BWP上的其他SRS资源所对应的PH。
  19. 根据权利要求1所述的方法，其中，所述上报计算得到的所述目标SRS资源集合的PH，包括：
    上报目标载波或目标BWP上配置的每一个SRS资源集合分别对应的PH。
  20. 一种终端设备，包括：
    处理单元，计算目标SRS资源集合包含的至少一个SRS资源上的预期SRS发送功率；其中，所述目标SRS资源集合为目标载波或目标带宽部分BWP上的SRS资源集合；根据所述至少一个SRS资源上的预期SRS发送功率，计算得到所述目标SRS资源集合的功率余量PH；
    通信单元，上报计算得到的所述目标SRS资源集合的PH。
  21. 根据权利要求20所述的终端设备，其中，所述处理单元，如果计算PH的时刻所述终端设备在SRS资源上发送SRS，则基于发送的SRS的传输参数和为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算所述SRS资源上的预期SRS发送功率。
  22. 根据权利要求20所述的终端设备，其中，所述处理单元，如果计算PH的时刻所述终端设备不在SRS资源上发送SRS，则基于为所述SRS资源或所述目标SRS资源集合配置的功率控制参数计算该SRS资源上的预期SRS发送功率。
  23. 根据权利要求20所述的终端设备，其中，所述至少一个SRS资源为以下之一：
    所述目标SRS资源集合内占用同样OFDM符号的SRS资源；
    所述目标SRS资源集合内占用不同OFDM符号的SRS资源；
    所述目标SRS资源集合内占用带宽大小不同的SRS资源；
    所述目标SRS资源集合内采用不同天线阵列组发送SRS的SRS资源；
    所述目标SRS资源集合内采用相同天线阵列组发送SRS的SRS资源。
  24. 根据权利要求20所述的终端设备，其中，所述处理单元，当所述目标SRS资源集合用于上行非码本传输时，所述至少一个SRS资源为所述目标SRS资源集合中的全部SRS资源。
  25. 根据权利要求20所述的终端设备，其中，所述处理单元，当所述目标SRS资源集合用于上行码本传输或者波束管理或者天线切换时，所述至少一个SRS资源为所述目标SRS资源集合中的任意一个SRS资源。
  26. 根据权利要求20所述的终端设备，其中，所述处理单元，当计算PH的时刻所述终端设备在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP是当前激活的载波或BWP时，所述目标SRS资源集合为所述目标载波或目标BWP上当前用于SRS传输的SRS资源集合，或者，所述目标SRS资源集合为与当前的PUSCH传输关联的SRS资源集合。
  27. 根据权利要求20所述的终端设备，其中，所述处理单元，当计算PH的时刻所述终端设备不在目标载波或目标BWP上发送SRS，或者目标载波或目标BWP不是激活的载波或BWP时，所述目标SRS资源集合为目标载波或目标BWP上的集合索引最低的SRS资源集合，或者所述目标SRS资源集合为目标载波上最近激活的BWP上的集合索引最低的SRS资源集合。
  28. 根据权利要求20所述的终端设备，其中，所述处理单元，将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率的和，之间的差值作为所述目标SRS资源集合的PH。
  29. 根据权利要求28所述的终端设备，其中，所述至少一个SRS资源为：
    占用相同OFDM符号；或者，所述至少一个SRS资源采用相同天线阵列组发送SRS。
  30. 根据权利要求20所述的终端设备，其中，所述处理单元，将最大发送功率，与所述至少一个SRS资源上的预期SRS发送功率中最大或最小的预期发送功率之间的差值，作为所述目标SRS资源集合的PH。
  31. 根据权利要求28或30所述的终端设备，其中，所述最大发送功率为以下之一：
    所述终端设备支持的最大发送功率；
    所述终端设备在所述目标SRS资源集合所在的载波上支持的最大发送功率；
    所述终端设备在所述目标SRS资源集合上发送SRS所用的天线阵列组上支持的最大发送功率。
  32. 根据权利要求30所述的终端设备，其中，所述至少一个SRS资源 为：
    占用不同OFDM符号；或者，所占用带宽大小不同。
  33. 根据权利要求28或30所述的终端设备，其中，不同的所述目标SRS资源集合对应不同的天线阵列组；
    相应的，所述通信单元，根据每一个天线阵列组的最大发送功率，对每一个目标SRS资源集合分别进行PH上报。
  34. 根据权利要求20所述的终端设备，其中，所述处理单元，将所述至少一个SRS资源中的第一SRS资源上的最大发送功率、与所述第一SRS资源的预期SRS发送功率之间的差值，作为所述第一SRS资源的PH；将所述第一SRS资源的PH包含在所述目标SRS资源集合的PH中。
  35. 根据权利要求34所述的终端设备，其中，所述第一SRS资源上的最大发送功率为：在所述第一SRS资源上发送SRS所用的天线阵列组上支持的最大发送功率。
  36. 根据权利要求34所述的终端设备，其中，所述处理单元，将所述目标SRS资源集合中的各个SRS资源分别作为所述第一SRS资源。
  37. 根据权利要求20所述的终端设备，其中，所述通信单元，将所述目标SRS资源集合的PH作为目标载波或目标BWP上的SRS的PH进行上报；并且不上报所述目标载波或目标BWP上的其他SRS资源所对应的PH。
  38. 根据权利要求20所述的终端设备，其中，所述通信单元，上报目标载波或目标BWP上配置的每一个SRS资源集合分别对应的PH。
  39. 一种终端设备，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，
    其中，所述处理器用于运行所述计算机程序时，执行权利要求1-19任一项所述方法的步骤。
  40. 一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现权利要求1-19任一项所述的方法步骤。
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CA3093136A1 (en) 2019-09-12
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US11121840B2 (en) 2021-09-14
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