WO2022042119A1 - Srs时域资源的动态选择方法和装置、存储介质及电子装置 - Google Patents

Srs时域资源的动态选择方法和装置、存储介质及电子装置 Download PDF

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WO2022042119A1
WO2022042119A1 PCT/CN2021/106574 CN2021106574W WO2022042119A1 WO 2022042119 A1 WO2022042119 A1 WO 2022042119A1 CN 2021106574 W CN2021106574 W CN 2021106574W WO 2022042119 A1 WO2022042119 A1 WO 2022042119A1
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srs
time domain
domain resource
resource configuration
performance
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PCT/CN2021/106574
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English (en)
French (fr)
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付瑞颖
姚春峰
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中兴通讯股份有限公司
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Priority to EP21859959.5A priority Critical patent/EP4207658A4/en
Publication of WO2022042119A1 publication Critical patent/WO2022042119A1/zh

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    • 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
    • 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
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • 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
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Definitions

  • Embodiments of the present invention relate to the field of communications, and in particular, to a method and device for dynamically selecting SRS time domain resources, a storage medium, and an electronic device.
  • SRS Sounding reference signal
  • For the uplink it is mainly used for the measurement of the uplink channel state, so as to determine the uplink MCS (Modulation and Coding Scheme);
  • For the downlink it is mainly used for the acquisition of the downlink beam assignment weights in the uplink and downlink reciprocal systems, such as In a time division duplex (TDD) system, the reciprocity of the uplink and downlink channels is used to obtain the downlink beam assignment weight based on the SRS channel estimation.
  • TDD time division duplex
  • the accuracy and timeliness of SRS channel estimation both affect the performance of the uplink and downlink systems.
  • SRS can be allocated on the uplink symbols of special (S) subframes, or can be allocated on partial symbols of uplink (U) subframes (such as U). the last symbol of the subframe).
  • S special
  • U uplink subframes
  • the interference (NI) on different SRS symbols will be affected by the downlink of the remote cell.
  • the interference on the S subframe will be much higher than Interference on the U subframe; even in the absence of atmospheric waveguides, the degree of interference received on each symbol is different due to the complex network environment and different neighboring cells.
  • the interference level on the SRS symbol affects the accuracy of the SRS channel estimation. The greater the interference, the lower the accuracy of the SRS channel estimation, and the worse the performance of the uplink and downlink systems.
  • the number of SRS time domain symbols affects the capacity and period of the SRS.
  • the more time-domain symbols available for the SRS the larger the SRS capacity or the smaller the period.
  • the SRS capacity refers to the number of users that can support the configuration of SRS. If the user does not have SRS, it will affect the acquisition of channel quality information for uplink users.
  • the BF (Beam forming) transmission scheme cannot be used to obtain beam-forming gain, especially for Massive multi-antenna system (Massive MIMO) has a large performance loss.
  • the size of the SRS period will affect the timeliness of the SRS. The larger the SRS period, the longer the timeliness of obtaining uplink channel state information and downlink beamforming weights, and the worse the corresponding performance.
  • the SRS is allowed to be allocated on the U subframe, the number of SRS time domain symbols will increase, but the available symbols of the uplink traffic channel (PUSCH) will be reduced, which will result in an increase in the uplink code rate and a decrease in throughput.
  • PUSCH uplink traffic channel
  • the related SRS resource allocation scheme mainly allocates different resource sets to different neighboring cells from the perspective of inter-cell resource coordination (or Comp UE resource staggering), thereby reducing inter-cell SRS interference.
  • inter-cell interference coordination is mainly considered.
  • non-inter-cell interference is dominant, such as in the case of severe atmospheric ducts, different symbol interference is not considered when selecting cell SRS time-domain resources. The difference will cause the deterioration of the system performance, and the related schemes do not comprehensively evaluate the impact of SRS interference, the number of SRS symbols, etc. on the performance of the uplink and downlink systems.
  • Embodiments of the present invention provide a method and device, a storage medium, and an electronic device for dynamically selecting SRS time domain resources, so as to at least solve the problem of low uplink and downlink system performance caused by unreasonable selection of cell SRS time domain resources in the related art.
  • a method for dynamically selecting SRS time domain resources including: obtaining a current SRS time domain resource configuration and a candidate SRS time domain resource configuration, wherein the current SRS time domain resource configuration is currently The used time domain symbol resource configuration; the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration are determined according to the first measurement information, wherein the first performance parameter is used to indicate the system performance under the current SRS time domain resource configuration, the second performance parameter is used to indicate the system performance under the candidate SRS time domain resource configuration, and the first measurement information includes SRS symbols on the The interference impact factor of Domain resource configuration, wherein the second performance parameter of the target SRS time domain resource configuration is greater than the product of the first performance parameter and a preset ratio, and the preset ratio is greater than 1.
  • the interference influence factor in this embodiment of the present application may be a measured value of interference influence or an estimated value of interference influence.
  • the method further includes: in the case that the target SRS time domain resource configuration does not exist in the candidate SRS time domain resource configuration, keeping the current SRS time domain resource configuration unchanged.
  • the method before determining the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, the method further includes: acquiring the first measurement information.
  • acquiring the first measurement information includes: acquiring the total number of RRC connected users in the cell, the uplink reference spectral efficiency of each user, the downlink reference spectral efficiency of each user, and the uplink reference spectral efficiency of each user. Spectrum efficiency weighting factor, downlink spectral efficiency weighting factor of each user, interference influence factor of SRS interference on uplink performance, interference influence factor of SRS interference on downlink performance.
  • the method further includes: calculating the first performance parameter or calculating the second performance parameter by using the following formula:
  • the G(f UL , f DL ) is the first performance parameter or the second performance parameter
  • the RRC represents the total number of RRC connected users in the cell
  • the SE ul (i) represents the uplink reference spectral efficiency of user i
  • the SE dl (i) represents the downlink reference spectral efficiency of user i
  • the ⁇ (i) represents the uplink spectral efficiency weighting factor of user i
  • the ⁇ ul (NI(i)) is the interference influence factor of SRS interference on the uplink performance
  • the ⁇ dl (NI(i)) is the interference impact of SRS interference on the downlink performance factor.
  • acquiring the first measurement information includes: acquiring the total number of RRC connected users in the cell, the influence factor of the number of uplink symbols on the uplink system, the uplink reference spectral efficiency of each user, the Uplink spectral efficiency weighting factor, SRS interference impact factor on uplink performance, SRS capacity impact factor on uplink performance, SRS cycle impact factor on uplink performance, downlink reference spectral efficiency of each user, downlink spectral efficiency of each user
  • the weighting factor, the influence factor of SRS interference on downlink performance interference, the influence factor of SRS capacity on downlink performance, the SRS capacity refers to the number of users supporting SRS configuration, and the influence factor of SRS period on downlink performance.
  • the method further includes: using the following formula to determine the first performance parameter or the second performance parameter:
  • the G(f UL , f DL ) is the first performance parameter or the second performance parameter
  • the RRC represents the total number of RRC connected users in the cell
  • the ⁇ ul (UpSymNum) is the influence factor of the uplink symbol number on the uplink system
  • the SE ul (i) represents the uplink reference spectral efficiency of user i
  • the ⁇ (i) represents the uplink spectral efficiency weighting factor of user i
  • the ⁇ ul (NI(i)) is the influence factor of SRS interference on uplink performance
  • the ⁇ ul (Capability(i)) is the influence factor of SRS capacity on uplink performance
  • the SE d1 (i) represents the downlink reference spectral efficiency of user i
  • the ⁇ dl (NI(i)) is the influence factor of SRS interference on downlink performance
  • acquiring the candidate SRS time-domain resource configuration includes: acquiring all available SRS symbols; and determining any SRS symbol among the all available SRS symbols as one of the candidate SRS time-domain resources Configuration: Determining any at least two SRS symbols among all the available SRS symbols as one of the candidate SRS time domain resource configurations.
  • an apparatus for dynamically selecting SRS time domain resources including: a first obtaining unit configured to obtain a current SRS time domain resource configuration and a candidate SRS time domain resource configuration, wherein the The current SRS time domain resource configuration is the used time domain symbol resource configuration; the determining unit is configured to determine the first performance parameter of the current SRS time domain resource configuration and the candidate SRS time domain resource configuration according to the first measurement information.
  • the second performance parameter where the first performance parameter is used to represent the system performance under the current SRS time domain resource configuration, and the second performance parameter is used to represent the system performance under the candidate SRS time domain resource configuration system performance, the first measurement information includes the interference influence factor on the SRS symbol;
  • the replacement unit is set to, in the case that the target SRS time domain resource configuration exists in the candidate SRS time domain resource configuration, the current SRS time domain
  • the domain resource configuration is replaced with an SRS time domain resource configuration in the target SRS time domain resource configuration, wherein the second performance parameter of the target SRS time domain resource configuration is greater than the first performance parameter and a preset ratio
  • the product of , the preset ratio is greater than 1.
  • the apparatus further includes: a holding unit configured to determine the first performance parameter of the current SRS time domain resource configuration and the candidate SRS time domain according to the first measurement information After the second performance parameter of the resource configuration, in the case that the target SRS time domain resource configuration does not exist in the candidate SRS time domain resource configuration, the current SRS time domain resource configuration is kept unchanged.
  • the apparatus further includes: a second obtaining unit, configured to determine the first performance parameter and the candidate SRS of the current SRS time domain resource configuration according to the first measurement information The first measurement information is acquired before the second performance parameter of the time domain resource configuration.
  • the second obtaining unit includes: a first obtaining module configured to obtain the total number of RRC connected users in the cell, the uplink reference spectral efficiency of each user, and the downlink reference spectral efficiency of each user. , The uplink spectral efficiency weighting factor of each user, the downlink spectral efficiency weighting factor of each user, the interference influence factor of SRS interference on uplink performance, and the interference influence factor of SRS interference on downlink performance.
  • the second obtaining unit further includes: a first calculation module, configured to calculate the first performance parameter or calculate the first performance parameter by using the above formula 1-formula 3 after obtaining the first measurement information the second performance parameter.
  • the second obtaining unit includes: a second obtaining module configured to obtain the total number of RRC connected users in the cell, the influence factor of the number of uplink symbols on the uplink system, and the uplink reference spectrum of each user Efficiency, uplink spectral efficiency weighting factor of each user, interference factor of SRS interference on uplink performance, impact factor of SRS capacity on uplink performance, impact factor of SRS period on uplink performance, downlink reference spectral efficiency of each user, each The downlink spectral efficiency weighting factor of each user, the influence factor of SRS interference on downlink performance interference, the influence factor of SRS capacity on downlink performance, the SRS capacity refers to the number of users supporting SRS configuration, and the influence factor of SRS period on downlink performance.
  • the second obtaining unit further includes: a second calculation module, configured to use the above formula 4-formula 6 to determine the first performance parameter or all the parameters after obtaining the first measurement information. the second performance parameter.
  • the first obtaining unit includes: a third obtaining module configured to obtain all available SRS symbols; a determining module configured to determine any one SRS symbol among the all available SRS symbols It is one of the candidate SRS time domain resource configurations, and among all the available SRS symbols, any at least two SRS symbols are determined as one of the candidate SRS time domain resource configurations.
  • a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute any one of the above methods when running steps in the examples.
  • an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor is configured to run the computer program to execute any of the above Steps in Method Examples.
  • the first performance parameter and the second performance parameter are calculated through the interference influence factor on the SRS symbol, so that the interference on different SRS symbols caused by interference such as atmospheric ducts is considered
  • the impact of the level difference on resource selection is based on the consideration of the interference difference between different symbols, and the performance of SRS time domain resource allocation is also comprehensively evaluated in combination with parameters such as SRS available symbols, SRS capacity, and SRS period.
  • FIG. 1 is a block diagram of a hardware structure of a mobile terminal according to a method for dynamically selecting SRS time domain resources according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for dynamically selecting SRS time domain resources according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for dynamically selecting SRS time domain resources according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention.
  • FIG. 1 is a hardware structural block diagram of a mobile terminal according to a method for dynamically selecting SRS time domain resources according to an embodiment of the present invention.
  • the mobile terminal may include one or more (only one is shown in FIG.
  • processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the above-mentioned mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions.
  • a processing device such as a microprocessor MCU or a programmable logic device FPGA
  • memory 104 for storing data
  • the above-mentioned mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions.
  • FIG. 1 is only for illustration, and it does not limit the structure of the above-mentioned mobile terminal.
  • the mobile terminal may also include more or fewer components than those shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 .
  • the memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the method for dynamically selecting SRS time domain resources in the embodiment of the present invention. program, so as to execute various functional applications and data processing, that is, to realize the above-mentioned method.
  • Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may further include memory located remotely from the processor 102, and these remote memories may be connected to the mobile terminal through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • Transmission means 106 are used to receive or transmit data via a network.
  • the specific example of the above-mentioned network may include a wireless network provided by a communication provider of the mobile terminal.
  • the transmission device 106 includes a network adapter (Network Interface Controller, NIC for short), which can be connected to other network devices through a base station so as to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (Radio Frequency, RF for short) module, which is used to communicate with the Internet in a wireless manner.
  • RF Radio Frequency
  • FIG. 2 is a flowchart of a method for dynamically selecting SRS time domain resources according to an embodiment of the present invention. As shown in FIG. 2 , the flowchart includes the following steps:
  • S204 Determine the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, where the first performance parameter is used to indicate that the system performance under the current SRS time domain resource configuration, the second performance parameter is used to represent the system performance under the candidate SRS time domain resource configuration, and the first measurement information includes the interference impact factor on the SRS symbol;
  • the method further includes: In the case that the target SRS time domain resource configuration does not exist in the candidate SRS time domain resource configuration, keep the current SRS time domain resource configuration unchanged.
  • the method before determining the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, the method further includes: Obtain the first measurement information.
  • acquiring the first measurement information includes: acquiring the total number of RRC connected users in the cell, the uplink reference spectral efficiency of each user, the downlink reference spectral efficiency of each user, the uplink spectral efficiency weighting factor of each user, and each user's uplink spectral efficiency weighting factor.
  • the method further includes: calculating the first performance parameter or the second performance parameter by using the above formula 1-formula 3.
  • acquiring the first measurement information includes: acquiring the total number of RRC connected users in the cell, the influence factor of the number of uplink symbols on the uplink system, the uplink reference spectral efficiency of each user, the uplink spectral efficiency weighting factor of each user, Influence factor of SRS interference on uplink performance, Influence factor of SRS capacity on uplink performance, Influence factor of SRS period on uplink performance, Downlink reference spectral efficiency of each user, Downlink spectral efficiency weighting factor of each user, SRS interference on uplink performance
  • the downlink performance interference influence factor, the influence factor of the SRS capacity on the downlink performance, the SRS capacity refers to the number of users supporting the configuration of the SRS, and the influence factor of the SRS period on the downlink performance.
  • the method further includes: determining the first performance parameter or the second performance parameter by using the above formula 4-formula 6.
  • the first measurement information in this embodiment of the present application may be the total number of RRC connected users in the cell, the uplink reference spectral efficiency of each user, the downlink reference spectral efficiency of each user, and the uplink spectral efficiency weighting factor of each user.
  • the downlink spectral efficiency weighting factor of each user, the interference influence factor of SRS interference on uplink performance, the interference influence factor of SRS interference on downlink performance when calculating the first performance parameter, the value of the above-mentioned first measurement information may be the measured value It may also be an estimated value.
  • the value of the first measurement information may be a measured value or an estimated value.
  • the first measurement information in this embodiment of the present application may be the total number of RRC connected users in the cell, the influence factor of the number of uplink symbols on the uplink system, the uplink reference spectral efficiency of each user, and the uplink spectral efficiency weighting of each user.
  • factor interference factor of SRS interference on uplink performance, impact factor of SRS capacity on uplink performance, impact factor of SRS period on uplink performance, downlink reference spectral efficiency of each user, downlink spectral efficiency weighting factor of each user, SRS
  • the influence factor of interference on downlink performance, the influence factor of SRS capacity on downlink performance, the SRS capacity refers to the number of users supporting configuration of SRS, and the influence factor of SRS period on downlink performance.
  • obtaining the candidate SRS time domain resource configuration includes: obtaining all available SRS symbols; determining any SRS symbol among the all available SRS symbols as one of the candidate SRS time domain resource configurations; Among the available SRS symbols, any at least two SRS symbols are determined as one of the candidate SRS time domain resource configurations.
  • the core inventive point of the present invention is to evaluate the impact of various SRS time domain resource schemes on the performance of the uplink and downlink systems according to the interference conditions on different SRS symbols, and to dynamically select the SRS time domain symbols.
  • the uplink performance and downlink performance will be comprehensively evaluated according to the number of uplink symbols occupied by SRS and the number of available SRS symbols. performance, select the scheme with the best overall performance.
  • the cell SRS resource evaluation function is denoted as G(f UL , f DL ), where f UL is the uplink performance evaluation function, which is related to the interference (NI) on the SRS symbol, the number of uplink symbols occupied by the SRS, the SRS capacity or the SRS period, etc. Its expression is f UL (UpSymNum, NI, Capability, SrsPeriod); f DL is the downlink throughput evaluation function, which is related to the interference on the SRS symbol, SRS capacity or SRS period, and its expression is f DL (NI, Capability, SrsPeriod).
  • the method for dynamic selection of cell SRS time domain resources includes the following steps as shown in FIG. 3 :
  • the weighting coefficient of f DL can be selected to be much larger than that of f UL , and the influence of interference NI, SRS capacity, SRS period, etc. on the uplink and downlink systems can be determined through simulation or field tests.
  • S304 according to the available SRS symbols, obtain a set of SRS time domain resource solutions of the candidate cell.
  • T1 Indicates the current SRS time domain resource scheme set
  • T2 Indicates a set of other candidate SRS time domain resource solutions except the current SRS time domain resource solution.
  • S306 Obtain relevant measurement statistical information, such as the interference measurement amount on the SRS symbol and basic statistical information of the network.
  • information such as SRS capacity and SRS period is determined according to the number of SRS symbols in various SRS time domain resource schemes in the T1 and T2 sets.
  • S308 calculate the evaluation functions f UL (UpSymNum, NI, Capability, SrsPeriod), f DL (NI, Capability, SrsPeriod) and G (f of various SRS time domain resource schemes in the T1 and T2 sets UL , f DL ).
  • G(f UL , f DL ) of the SRS time domain resource allocation scheme in T2 is greater than G(f UL , f DL ) of the corresponding SRS time domain resource scheme in alfa*T1
  • adjust the SRS time domain resources And select the scheme with the largest G(f UL , f DL ) from T2, otherwise keep the current SRS time domain resource scheme.
  • alfa is a hysteresis factor, which can be determined by comprehensively considering system performance and reconfiguration overhead.
  • the impact on the performance of the uplink and downlink systems is comprehensively evaluated according to the interference on the SRS symbols, the basic statistical information of the network, the number of U subframe symbols occupied by the SRS, the SRS capacity and the SRS Comprehensive evaluation of the impact on uplink and downlink system performance such as period, and selecting the cell SRS time-domain resource allocation scheme with the greatest spectral efficiency can improve system performance.
  • the uplink and downlink system performance is evaluated mainly based on the interference levels on different SRS symbols.
  • RRC represents the total number of RRC connected users in the cell.
  • ⁇ (i) and respectively represent the uplink spectral efficiency weighting factor and the downlink spectral efficiency weighting factor of user i, which can be obtained by statistics according to the spectral efficiency distribution and scheduling ratio of users in the network.
  • ⁇ ul (t) is the influence factor of SRS interference on uplink performance, which can be determined according to testing or simulation. It is assumed in this embodiment that
  • ⁇ dl (t) is the influence factor of SRS interference on downlink performance, in which the interference influence factor on downlink BF users can be obtained through simulation or testing, assuming:
  • Step 2 According to the total available SRS symbols, obtain a set of SRS time-domain resource schemes of candidate cells.
  • the cell SRS time domain resource selection takes 5ms as the reference period, and the total available SRS symbols are S1, S2, and U1.
  • S1 and S2 represent the first uplink symbol and the second uplink symbol of the S subframe, and U1 represents the last symbol of the U subframe.
  • the candidate SRS time domain resource scheme set T2 is:
  • T2(1) S1+S2+U1
  • T2(2) S1+U1
  • T2(3) S2+U1
  • T2(4) S1
  • Step 3 Obtain relevant measurement statistical information, including the interference of each symbol and basic statistical information of the network, and determine the information of each user for each SRS time-domain resource scheme, which mainly includes the following information:
  • the number of RRC connected users in the network assuming that there are 200 users in the network;
  • T2(1)-T2(6) time domain resource allocation schemes pre-allocate SRS resources to UEs, and determine the SRS resource allocation situation of each UE under each scheme.
  • Step 4 According to the information obtained in the third step, substitute the evaluation function determined in the first step to calculate the evaluation functions f UL (NI) and f DL (NI) corresponding to T1, T2(1) ⁇ T2(6) respectively. ) and G(f UL , f DL ).
  • Step 5 Assuming that the value of alfa is 1.1, G(f UL , f DL ) of T2(3) in T2(1) ⁇ T2(6) has the largest value, which is 320, and G(f of T2(3) The value of UL , f DL ) is less than the value of G(f UL , f DL ) of T1, and the value of G(f UL , f DL ) is 1.1*300, so the SRS time domain symbol resource scheme corresponding to T1 is selected, that is, the current SRS time domain scheme is kept unchanged.
  • the uplink and downlink system performance is comprehensively evaluated according to the interference level on different SRS symbols, the number of uplink symbols occupied by the SRS, and the number of available symbols for the SRS.
  • the uplink system performance is mainly related to the number of available uplink symbols except SRS symbols, SRS NI, SRS capacity, and SRS period.
  • fUL UpSymNum,NI,Capability,SrsPeriod
  • RRC represents the total number of RRC connected users in the cell.
  • ⁇ ul (UpSymNum) is the influence factor of the number of uplink symbols on the uplink system, set Wherein UpSymNum is the number of available upstream symbols excluding SRS symbols, and TotalUpSym is the number of all available upstream symbols.
  • UpSymNum is the number of available upstream symbols excluding SRS symbols
  • TotalUpSym is the number of all available upstream symbols.
  • ⁇ (i) represents the uplink spectral efficiency weighting factor of user i, which can be obtained by statistics according to the uplink spectral efficiency distribution and uplink scheduling ratio of users in the network.
  • ⁇ ul (t) is the influence factor of SRS interference on uplink performance, which can be determined according to testing or simulation. In this embodiment, it is assumed that
  • ⁇ ul (Capability(i)) is the influence factor of SRS capacity on uplink performance
  • Downlink system performance is mainly related to SRS NI, SRS capacity and SRS period.
  • the expression of f DL (NI, Capability, SrsPeriod) is as follows:
  • ⁇ dl (t) is the influence factor of SRS interference on downlink performance, and the influence factor of interference to downlink BF users can be obtained through simulation or test, assuming:
  • ⁇ dl (Capability(i)) is the influence factor of the SRS capacity on the downlink performance, and the SRS capacity refers to the number of users that can support the configuration of the SRS.
  • Step 2 According to the total available SRS symbols, obtain a set of SRS time-domain resource schemes of candidate cells.
  • the cell SRS time domain resource selection takes 5ms as the reference period, and the total available SRS symbols are S1, S2, and U1.
  • S1 and S2 represent the first uplink symbol and the second uplink symbol of the S subframe, and U1 represents the last symbol of the U subframe.
  • the candidate SRS time domain resource scheme set T2 is:
  • T2(1) S1+S2+U1
  • T2(2) S1+U1
  • T2(3) S2+U1
  • T2(4) S1
  • Step 3 Obtain relevant measurement statistics, including the interference of each symbol and basic statistics of the network, and determine the information of each user for each SRS time domain resource scheme, including whether there are SRS resources and where the SRS resources are located. sign, period, etc. Specifically, it mainly includes the following information:
  • the number of RRC connected users in the network assuming there are 100 users in the network;
  • the available uplink symbols in each scheme are obtained.
  • the special subframe configuration ratio is 7, T1, T2 ( The uplink symbols UpSymNum of each subframe radio frame corresponding to 1) to T2(6) are 28, 27, 27, 27, 28, 28, and 28 respectively; the total available uplink symbols are 28.
  • T2(1) ⁇ T2(6) time domain resource allocation schemes pre-allocate SRS resources to UEs, and determine the SRS resource allocation of each UE under each scheme, including whether the UE has SRS and SRS period , NI on the symbol where the SRS is located.
  • Step 5 Assuming that the value of alfa is 1.1, G(f UL , f DL ) of T2(3) in T2(1) ⁇ T2(6) has the largest value, which is 350, and G(f of T2(3) The value of UL , f DL ) is greater than the value of G(f UL , f DL ) of T1, which is 1.1*260, so the SRS time-domain symbol resource scheme corresponding to T2(3) is selected.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solutions of the present invention can be embodied in the form of software products in essence, or the parts that make contributions to related technologies.
  • the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) ), including several instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present invention.
  • This embodiment also provides an apparatus for dynamically selecting SRS time-domain resources, the apparatus is used to implement the above embodiments and preferred implementations, and what has been described will not be repeated.
  • the term "module” may be a combination of software and/or hardware that implements a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, implementations in hardware, or a combination of software and hardware, are also possible and contemplated.
  • FIG. 4 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention. As shown in FIG. 4 , the apparatus includes:
  • the first obtaining unit 402 is configured to obtain the current SRS time domain resource configuration and the candidate SRS time domain resource configuration, wherein the current SRS time domain resource configuration is the time domain symbol resource configuration being used;
  • the determining unit 404 is configured to determine the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, wherein the first performance parameter is used for represents the system performance under the current SRS time-domain resource configuration, the second performance parameter is used to represent the system performance under the candidate SRS time-domain resource configuration, and the first measurement information includes interference on SRS symbols Impact factor;
  • a replacement unit 406 configured to replace the current SRS time domain resource configuration with an SRS in the target SRS time domain resource configuration in the case where a target SRS time domain resource configuration exists in the candidate SRS time domain resource configuration Time domain resource configuration, wherein the second performance parameter of the target SRS time domain resource configuration is greater than the product of the first performance parameter and a preset ratio, and the preset ratio is greater than 1.
  • FIG. 5 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention. As shown in FIG. 5 , in addition to all the units shown in FIG. 4 , the apparatus further includes:
  • the maintaining unit 502 is configured to, after determining the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, In the case that the target SRS time domain resource configuration does not exist in the candidate SRS time domain resource configuration, the current SRS time domain resource configuration is kept unchanged.
  • FIG. 6 is a structural block diagram of an apparatus for dynamically selecting SRS time domain resources according to an embodiment of the present invention. As shown in FIG. 6 , in addition to all the units shown in FIG. 4 , the apparatus further includes:
  • the second obtaining unit 602 is configured to, before determining the first performance parameter of the current SRS time domain resource configuration and the second performance parameter of the candidate SRS time domain resource configuration according to the first measurement information, Obtain the first measurement information.
  • the first obtaining unit further includes:
  • the third obtaining module 702 is configured to obtain all available SRS symbols
  • the determining module 704 is configured to determine any one SRS symbol among the all available SRS symbols as one of the candidate SRS time domain resource configurations, and determine any at least two SRS symbols among the all available SRS symbols It is determined as one of the candidate SRS time domain resource configurations.
  • the above modules can be implemented by software or hardware, and the latter can be implemented in the following ways, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination The forms are located in different processors.
  • Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.
  • the above-mentioned computer-readable storage medium may include, but is not limited to, a USB flash drive, a read-only memory (Read-Only Memory, referred to as ROM for short), and a random access memory (Random Access Memory, referred to as RAM for short) , mobile hard disk, magnetic disk or CD-ROM and other media that can store computer programs.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • An embodiment of the present invention also provides an electronic device, comprising a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any of the above method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the above-mentioned processor, and the input-output device is connected to the above-mentioned processor.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be centralized on a single computing device, or distributed in a network composed of multiple computing devices
  • they can be implemented in program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, can be performed in a different order than shown here.
  • the described steps, or they are respectively made into individual integrated circuit modules, or a plurality of modules or steps in them are made into a single integrated circuit module to realize.
  • the present invention is not limited to any particular combination of hardware and software.
  • the first performance parameter and the second performance parameter are calculated by using the interference influence factor on the SRS symbol, so that the interference caused by atmospheric ducts and other interference on different SRS symbols is considered.
  • the impact of the difference in the interference level on the resource selection is based on the consideration of the interference difference of different symbols, and the performance of the SRS time-domain resource allocation is also comprehensively evaluated in combination with parameters such as SRS available symbols, SRS capacity, and SRS period.

Abstract

本发明实施例提供了一种SRS时域资源的动态选择方法和装置、存储介质及电子装置，该方法包括：获取当前SRS时域资源配置与候选SRS时域资源配置，其中，上述当前SRS时域资源配置为正在使用的时域符号资源配置，根据第一测量信息确定上述当前SRS时域资源配置的第一性能参数和候选SRS时域资源配置的第二性能参数，在上述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将上述当前SRS时域资源配置替换为上述目标SRS时域资源配置中的一个SRS时域资源配置。通过本发明实施例，解决了小区SRS时域资源选择不合理造成的上下行系统性能低的问题，进而达到了提高上下行系统性能的效果。

Description

SRS时域资源的动态选择方法和装置、存储介质及电子装置
相关申请的交叉引用
本公开基于2020年8月27日提交的发明名称为“SRS时域资源的动态选择方法和装置、存储介质及电子装置”的中国专利申请202010881204.6，并且要求该专利申请的优先权，通过引用将其所公开的内容全部并入本公开。
技术领域
本发明实施例涉及通信领域，具体而言，涉及一种SRS时域资源的动态选择方法和装置、存储介质及电子装置。
背景技术
SRS(Sounding reference signal，探测参考信号)在LTE/NR系统中有着重要的作用。对于上行，主要用于上行信道状态的测量，从而进行上行MCS(Modulation and Coding Scheme，调制编码方式)的确定；对于下行，主要用于上下行互易系统中下行波束赋性权值的获取，比如在时分双工(TDD)系统中利用上下行信道的互易性，基于SRS信道估计，来获取下行的波束赋性权值。SRS信道估计的准确性和时效性对上下行系统的性能均有影响。
3GPP协议中对可用于发送SRS的符号进行了定义，比如LTE系统中SRS可以分配在特殊(S)子帧的上行符号上，也可以分配在上行(U)子帧的部分符号上(比如U子帧的最后一个符号)。
小区SRS时域符号的选择，对上下行系统性能有较大影响：
SRS不同符号上干扰(NI)可能存在差异，尤其是在大气波导严重的区域，本小区会受到远端小区下行的影响，根据大气波导干扰的特性，S子帧上的干扰会远远高于U子帧上的干扰；即使是在无大气波导的情况下，由于复杂的网络环境以及邻区不同的情况，各个符号上受到的干扰程度也是有差异的。而SRS符号上的干扰水平影响SRS信道估计的准确性，干扰越大SRS信道估计的准确性会越低，从而上下行系统的性能越差。
SRS时域符号数的多少，会影响SRS的容量和周期。SRS可用时域符号数越多，SRS容量就会越大或者周期就会越小。其中SRS容量指的是可以支持配置SRS的用户数，若用户无SRS，对于上行用户影响信道质量信息的获取，对于下行用户，无法采用BF(Beam forming)传输方案来获取波束赋性增益，尤其对于大规模多天线系统(Massive MIMO)有较大的性能损失。SRS周期大小会影响SRS的时效性，SRS周期越大，对于上行信道状态信息和下行波束赋型权值获取的时效性会越长，相应的性能就会越差。
若SRS允许分配在U子帧上，SRS时域符号数会增加，但是会导致上行业务信道(PUSCH)可用符号变少，会造成上行码率的升高和吞吐量的降低。
综合上述分析，如何合理的进行小区SRS时域符号资源的选择，对提升系统性能有着重要的作用。
相关的SRS资源分配方案，主要从小区间资源协调(或者Comp UE资源错开)的角度，为不同的邻区分配不同的资源集，从而减少小区间SRS干扰。这些技术方案存在的问题是，主要考虑了小区间的干扰协调，当非小区间干扰占主导的情况下，如大气波导严重的情况下，在进行小区SRS时域资源选择时没有考虑不同符号干扰的差异，会造成系统性能的恶化，并且相关的方案没有综合评估SRS干扰、SRS符号数等对上下行系统性能的影响。
也就是说，相关技术中，在进行小区SRS时域资源选择时，并未考虑到大气波导等干扰导致的不同SRS符号上干扰水平的差异对资源选择的影响，造成小区SRS时域资源选择不合理，进一步造成上下行系统性能低。
发明内容
本发明实施例提供了一种SRS时域资源的动态选择方法及装置、存储介质及电子装置，以至少解决相关技术中小区SRS时域资源选择不合理造成的上下行系统性能低的问题。
根据本发明的一个实施例，提供了一种SRS时域资源的动态选择方法，包括：获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；根据第一测量信息确定所述当前SRS时域资源 配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因子；在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所述第一性能参数与预设比例的乘积，所述预设比例大于1。
本申请实施例中的干扰影响因子可以为干扰影响的测量值或者干扰影响的预估值。
在一个示例性实施例中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，所述方法还包括：在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
在一个示例性实施例中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，所述方法还包括：获取所述第一测量信息。
在一个示例性实施例中，获取所述第一测量信息包括：获取小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子。
在一个示例性实施例中，在获取所述第一测量信息之后，所述方法还包括：通过如下公式计算所述第一性能参数或者计算所述第二性能参数：
G(f UL,f DL)＝a*f UL(NI)+b*f DL(NI)   (1)
Figure PCTCN2021106574-appb-000001
Figure PCTCN2021106574-appb-000002
其中，a+b＝1，所述G(f UL,f DL)为所述第一性能参数或所述第二性能参数，所述 RRC表示小区中总的RRC连接用户数，所述SE ul(i)表示用户i的上行基准频谱效率，所述SE dl(i)表示用户i的下行基准频谱效率，所述β(i)表示用户i的上行频谱效率加权因子，所述
Figure PCTCN2021106574-appb-000003
表示用户i的下行频谱效率加权因子，所述ξ ul(NI(i))为SRS干扰对上行性能的干扰影响因子，所述ξ dl(NI(i))为SRS干扰对下行性能的干扰影响因子。
在一个示例性实施例中，获取所述第一测量信息包括：获取小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。
在一个示例性实施例中，获取所述第一测量信息之后，还包括：使用如下公式确定所述第一性能参数或者所述第二性能参数：
G(f UL,f DL)＝a*f UL+b*f DL(NI,Capability,SrsPeriod)   (4)
Figure PCTCN2021106574-appb-000004
Figure PCTCN2021106574-appb-000005
其中，a+b＝1，所述G(f UL,f DL)为所述第一性能参数或所述第二性能参数，所述RRC表示小区中总的RRC连接用户数，所述θ ul(UpSymNum)为上行符号数对上行系统的影响因子，所述SE ul(i)表示用户i的上行基准频谱效率，所述β(i)表示用户i的上行频谱效率加权因子，所述ξ ul(NI(i))为SRS干扰对上行性能的干扰影响因子，所述δ ul(Capability(i))为SRS容量对上行性能的影响因子，所述
Figure PCTCN2021106574-appb-000006
为SRS周期对上行性能的影响因子，所述SE dl(i)表示用户i的下行基准频谱效率，所述
Figure PCTCN2021106574-appb-000007
表示 用户i的下行频谱效率加权因子，所述ξ dl(NI(i))为SRS干扰对下行性能的干扰影响因子，所述δ dl(Capability(i))为SRS容量对下行性能的影响因子，所述SRS容量指支持配置SRS的用户数，所述
Figure PCTCN2021106574-appb-000008
为SRS周期对下行性能的影响因子。
在一个示例性实施例中，获取所述候选SRS时域资源配置包括：获取所有可用的SRS符号；将所述所有可用的SRS符号中，任意一个SRS符号确定为一个所述候选SRS时域资源配置；将所述所有可用的SRS符号中，任意的至少两个SRS符号确定为一个所述候选SRS时域资源配置。
根据本发明的另一个实施例，提供了一种SRS时域资源的动态选择装置，包括：第一获取单元，设置为获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；确定单元，设置为根据第一测量信息确定所述当前SRS时域资源配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因子；替换单元，设置为在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所述第一性能参数与预设比例的乘积，所述预设比例大于1。
在一个示例性实施例中，所述装置还包括：保持单元，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
在一个示例性实施例中，所述装置还包括：第二获取单元，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，获取所述第一测量信息。
在一个示例性实施例中，所述第二获取单元包括：第一获取模块，设置为获取小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱 效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子。
在一个示例性实施例中，所述第二获取单元还包括：第一计算模块，设置为在获取所述第一测量信息之后，通过上述公式1-公式3计算所述第一性能参数或者计算所述第二性能参数。
在一个示例性实施例中，所述第二获取单元包括：第二获取模块，设置为获取小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。
在一个示例性实施例中，所述第二获取单元还包括：第二计算模块，设置为在获取所述第一测量信息之后，使用上述公式4-公式6确定所述第一性能参数或者所述第二性能参数。
在一个示例性实施例中，所述第一获取单元包括：第三获取模块，设置为获取所有可用的SRS符号；确定模块，设置为将所述所有可用的SRS符号中，任意一个SRS符号确定为一个所述候选SRS时域资源配置，且将所述所有可用的SRS符号中，任意的至少两个SRS符号确定为一个所述候选SRS时域资源配置。
根据本发明的又一个实施例，还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本发明的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
通过本发明实施例，由于在选择时域资源的过程中，通过SRS符号上的干扰影响因子计算了第一性能参数与第二性能参数，从而考虑了大气波导等干扰导致的不同 SRS符号上干扰水平的差异对资源选择的影响，在考虑不同符号干扰差异的基础上，还结合SRS可用符号、SRS容量、SRS周期等参数综合评估SRS时域资源分配的性能，因此，可以解决相关小区SRS时域资源选择不合理造成的上下行系统性能低问题，进而达到提高上下行系统性能的效果。
附图说明
图1是根据本发明实施例的一种SRS时域资源的动态选择方法的移动终端的硬件结构框图；
图2是根据本发明实施例的一种SRS时域资源的动态选择方法的流程图；
图3是根据本发明实施例的一种SRS时域资源的动态选择方法的流程图；
图4是根据本发明实施例的一种SRS时域资源的动态选择装置的结构框图；
图5是根据本发明实施例的一种SRS时域资源的动态选择装置的结构框图；
图6是根据本发明实施例的一种SRS时域资源的动态选择装置的结构框图；
图7是根据本发明实施例的一种SRS时域资源的动态选择装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明的实施例。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例中所提供的方法实施例可以在移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本发明实施例的一种SRS时域资源的动态选择方法的移动终端的硬件结构框图。如图1所示，移动终端可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)和用于存储数据的存储器104，其中，上述移动终端还可以包括用于通信功能的传输设备106以及输入输出设备108。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述移动终端的结构造成 限定。例如，移动终端还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可用于存储计算机程序，例如，应用软件的软件程序以及模块，如本发明实施例中的SRS时域资源的动态选择方法对应的计算机程序，处理器102通过运行存储在存储器104内的计算机程序，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括移动终端的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，简称为RF)模块，其用于通过无线方式与互联网进行通讯。
图2是根据本发明实施例的SRS时域资源的动态选择方法的流程图，如图2所示，该流程包括如下步骤：
S202，获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；
S204，根据第一测量信息确定所述当前SRS时域资源配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因子；
S206，在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所述第一性能参数与预设比例的乘积，所述预设比例大于1。
其中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，所述方法还包括：在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
其中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，所述方法还包括：获取所述第一测量信息。
其中，获取所述第一测量信息包括：获取小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子。
其中，在获取所述第一测量信息之后，还包括：通过上述公式1-公式3计算所述第一性能参数或者所述第二性能参数。
其中，获取所述第一测量信息包括：获取小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。
其中，获取所述第一测量信息之后，还包括：使用上述公式4-公式6确定所述第一性能参数或者所述第二性能参数。
其中，本申请实施例中的第一测量信息可以为小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子，在计算第一性能参数时，上述第一测量信息的值可以为测量值也可以为预估值，在计算第二性能参数的时候，上述第一测量信息的值可以为测量值或者预估值。
其中，本申请实施例中的第一测量信息可以为小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。在计算第一性能参数时，上述第一测量信息的值可以为测量值也可以为预估值，在计算第二性能参数的时候，上述第一测量信息的值可以为测量值或者预估值。
其中，获取所述候选SRS时域资源配置包括：获取所有可用的SRS符号；将所述所有可用的SRS符号中，任意一个SRS符号确定为一个所述候选SRS时域资源配置；将所述所有可用的SRS符号中，任意的至少两个SRS符号确定为一个所述候选SRS时域资源配置。
通过上述步骤，解决了小区SRS时域资源选择不合理造成的上下行系统性能低的问题，进而达到了提高上下行系统性能的效果。
以下结合一个具体示例解释上述SRS时域资源的动态选择方法。
本发明的核心发明点是根据不同SRS符号上的干扰情况，评估各种SRS时域资源方案对上下行系统性能的影响，动态的进行SRS时域符号的选择。
其中，由于SRS占用的上行符号数、SRS可用符号数也会影响系统性能，除了考虑不同符号上SRS干扰情况外，同时会根据SRS占用上行符号数以及SRS可用符号数等综合评估上行性能和下行性能，选择综合性能最优的方案。
小区SRS资源评价函数记为G(f UL,f DL)，其中f UL为上行性能评价函数，与SRS符号上的干扰(NI)、SRS占用的上行符号数、SRS容量或SRS周期等有关，其表达式为f UL(UpSymNum,NI,Capability,SrsPeriod)；f DL为下行吞吐量评价函数，与SRS符号上的干扰、SRS容量或SRS周期有关，其表达式为f DL(NI,Capability,SrsPeriod)。
本发明所述小区SRS时域资源动态选择的方法包括如图3所示的以下步骤：
S302，根据不同的场景和系统性能的要求，选择评价函数的表达式。例如，在侧重于下行性能的系统，可以选择f DL的加权系数远大于f UL的加权系数，干扰NI、SRS 容量、SRS周期等对上下行系统的影响可以通过仿真或者外场测试确定。
S304，根据可用SRS符号，获取候选小区SRS时域资源方案集合。
T1：表示当前SRS时域资源方案集合；
T2：表示除当前SRS时域资源方案以外的，其他的候选SRS时域资源方案集合。
S306，获取相关测量统计信息，如SRS符号上的干扰测量量、网络的基本统计信息。优选的，根据T1和T2集合中各种SRS时域资源方案中SRS符号数来确定SRS容量、SRS周期等信息。
S308，根据S306中获取的信息，计算T1和T2集合中各种SRS时域资源方案的评价函数f UL(UpSymNum,NI,Capability，SrsPeriod)、f DL(NI,Capability,SrsPeriod)和G(f UL,f DL)。
S310，若T2中SRS时域资源分配方案的G(f UL,f DL)大于alfa*T1中对应SRS时域资源方案的G(f UL,f DL)，则进行SRS时域资源的调整，且从T2中选择G(f UL,f DL)最大的方案，否则保持当前的SRS时域资源方案。其中alfa为迟滞因子，可以综合考虑系统性能和重配开销来确定。
采用本发明所述方法，与相关技术相比，根据SRS符号上的干扰综合评估对上下行系统性能的影响，还会根据网络的基本统计信息、SRS占用U子帧符号数、SRS容量和SRS周期等综合评估对上行和下行系统性能的影响，选择频谱效率最大的小区SRS时域资源分配方案，可以提升系统的性能。
作为一个可选的实施例，主要基于不同SRS符号上干扰水平评估上下行系统性能。
第一步：根据不同场景对上下行性能的关注度，设置评价函数，设G(f UL,f DL)＝a*f UL(NI)+b*f DL(NI)。
其中：
Figure PCTCN2021106574-appb-000009
Figure PCTCN2021106574-appb-000010
其中，a+b＝1，本实施例中a＝0.2，b＝0.8；
1)RRC表示小区中总的RRC连接用户数。
2)SE ul(i)、SE dl(i)分别表示用户i的上行基准频谱效率和下行基准频谱效率，指的是用户i在NI＝-110dBm时的上行频谱效率和下行频谱效率，可以分布根据UE的上、下行MCS及统计信息获取。
3)β(i)和
Figure PCTCN2021106574-appb-000011
分别表示用户i的上行频谱效率加权因子和下行频谱效率加权因子，可以根据网络中用户的频谱效率分布和调度比例统计得到。
4)ξ ul(t)为SRS干扰对上行性能影响因子，可以根据测试或者仿真来确定，本实施例中假设
Figure PCTCN2021106574-appb-000012
5)ξ dl(t)为SRS干扰对下行性能影响因子，其中对下行BF用户的干扰影响因子可以通过仿真或者测试获取，假设：
对于BF用户，
Figure PCTCN2021106574-appb-000013
对于非BF用户，ξ dl(t)＝1。
第二步：根据总可用SRS符号，获取候选小区SRS时域资源方案集合。
对于TDD上下行配比2，小区SRS时域资源选择以5ms为基准周期，总的可用的SRS符号为S1，S2，U1。
其中S1和S2表示的是S子帧第一个上行符号和第二个上行符号，U1表示的是U子帧的最后一个符号。
当前的SRS时域资源方案集合T1＝S1+S2。
候选的SRS时域资源方案集合T2为：
T2(1)＝S1+S2+U1，T2(2)＝S1+U1，T2(3)＝S2+U1，T2(4)＝S1，T2(5)＝S2，T2(6)＝U1。
第三步：获取相关测量统计信息，包括每个符号的干扰情况、网络的基本统计信息，并针对每种SRS时域资源方案，确定每个用户的信息，具体主要包括如下信息：
网络中的RRC连接用户数，假设网络中有200个用户；
获取每个SRS符号上的干扰情况；
获取网络中每个UE的基准频谱效率SE ul(i)和SE dl(i)；
根据网络中上行SE的分布以及调度比例获取每个用户的加权因子β(i)；
根据网络中下行SE的分配以及调度比例获取每个用户的加权因子
Figure PCTCN2021106574-appb-000014
对于T1、T2(1)～T2(6)时域资源分配方案下，对UE进行SRS资源的预分配，确定每种方案下每个UE的SRS资源分配情况。
第四步：根据第三步中获取信息，代入第一步中确定的评价函数，分别计算出T1、T2(1)～T2(6)对应的评价函数f UL(NI)、f DL(NI)和G(f UL,f DL)。
假设计算得到的T1、T2(1)～T2(6)的评价函数G(f UL,f DL)取值分别为300,280,270,320,240,250,300。
第五步：假设alfa取值为1.1，T2(1)～T2(6)中T2(3)的G(f UL,f DL)取值最大，为320，且T2(3)的G(f UL,f DL)取值小于T1的G(f UL,f DL)取值1.1*300，故选择T1对应的SRS时域符号资源方案，即保持目当前的SRS时域方案不变。
作为另一个示例，根据不同SRS符号上干扰水平、SRS占用上行符号数、SRS可用符号数综合评估上下行系统性能。
第一步：根据不同场景对上下行性能的关注度，设置评价函数，设G(f UL,f DL)＝a*f UL+b*f DL(NI,Capability,SrsPeriod)。
上述a+b＝1，本实施例中a＝0.4,b＝0.6；
上行系统性能主要与除去SRS符号以外的上行可用符号数、SRS NI、SRS容量、SRS周期有关。
f UL(UpSymNum,NI,Capability,SrsPeriod)的表达式如下：
Figure PCTCN2021106574-appb-000015
其中：
RRC表示小区中总的RRC连接用户数。
θ ul(UpSymNum)为上行符号数对上行系统影响因子，设
Figure PCTCN2021106574-appb-000016
其中UpSymNum为除去SRS符号外上行可用符号数，TotalUpSym为上行所有可用的符号数。当SRS占用U子帧的符号时，会造成上行符号数减少，对上行吞吐量有影响；当SRS占用S子帧时，不会占用上行符号，对上行吞吐量无影响。
SE ul(i)表示用户i的上行基准频谱效率，指的是用户i在UpSymNum＝TotalUpSym、NI＝-110dBm、配置SRS资源且SRS周期为5ms时的上行频谱效率，可以根据UE的MCS或者统计信息获取。
β(i)表示用户i的上行频谱效率加权因子，可以根据网络中用户的上行频谱效率分布和上行调度比例统计得到。
ξ ul(t)为SRS干扰对上行性能影响因子，可以根据测试或者仿真来确定，本实施例中假设
Figure PCTCN2021106574-appb-000017
δ ul(Capability(i))为SRS容量对上行性能影响因子，设
对于配置SRS的用户，δ ul(Capability(i))＝1；
对于无SRS的用户，δ ul(Capability(i))＝0.9。
Figure PCTCN2021106574-appb-000018
为SRS周期对上行性能影响因子，假设上行对SRS周期无要求，即
Figure PCTCN2021106574-appb-000019
下行系统性能主要与SRS NI、SRS容量和SRS周期有关，f DL(NI,Capability,SrsPeriod)表达式如下：
Figure PCTCN2021106574-appb-000020
其中：
SE dl(i)表示用户i的下行基准频谱效率，指的是用户i在采用波束赋型方案、NI＝-110dBm、配置SRS资源且SRS周期为5ms时的下行频谱效率，可以根据UE的下行信道质量或者统计信息获取。
Figure PCTCN2021106574-appb-000021
表示用户i的下行频谱效率加权因子，根据网络中用户的下行频谱效率分布和下行调度比例统计得到。
ξ dl(t)为SRS干扰对下行性能影响因子，其中对下行BF用户的干扰影响因子可以通过仿真或者测试获取，假设：
对于BF用户，
Figure PCTCN2021106574-appb-000022
对于非BF用户，ξ dl(t)＝1。
δ dl(Capability(i))为SRS容量对下行性能影响因子，SRS容量指的是能够支持配置SRS的用户数。
对于配置SRS的用户，δ dl(Capability(i))＝1；
对于无SRS的用户，无法采用BF传输方案获取波束赋性增益，δ dl(Capability(i))根据非BF用户相对于BF用户的性能损失来确定，可以通过仿真或者测试预先确定，假设δ dl(Capability(i))＝0.8。
Figure PCTCN2021106574-appb-000023
为SRS周期对下行性能影响因子，根据实际测试或者仿真确定，本实施例中假设：
Figure PCTCN2021106574-appb-000024
第二步：根据总可用SRS符号，获取候选小区SRS时域资源方案集合。
对于TDD上下行配比2，小区SRS时域资源选择以5ms为基准周期，总的可用 的SRS符号为S1，S2，U1。
其中S1和S2表示的是S子帧第一个上行符号和第二个上行符号，U1表示的是U子帧的最后一个符号。
当前的SRS时域资源方案集合T1＝S1+S2。
候选的SRS时域资源方案集合T2为：
T2(1)＝S1+S2+U1，T2(2)＝S1+U1，T2(3)＝S2+U1，T2(4)＝S1，T2(5)＝S2，T2(6)＝U1。
第三步：获取相关测量统计信息，包括每个符号的干扰情况、网络的基本统计信息，并针对每种SRS时域资源方案，确定每个用户的信息，包括是否有SRS资源、SRS资源所在的符号、周期等。具体主要包括如下信息：
网络中的RRC连接用户数，假设网络中有100个用户；
获取每个SRS符号上的干扰情况；
获取网络中每个UE的基准频谱效率SE ul(i)和SE dl(i)；
根据网络中上行SE的分布以及调度比例获取每个用户的加权因子β(i)；
根据网络中下行SE的分配以及调度比例获取每个用户的加权因子
Figure PCTCN2021106574-appb-000025
对于T1、T2(1)～T2(6)各时域资源，获取每种方案下上行可用符号，其中对于本实施例中上下行配比2，特殊子帧配比7下，T1、T2(1)～T2(6)对应的每个子帧无线帧的上行符号UpSymNum分别为28,27,27,27,28,28,28；总的可用上行符号为28。
对于T1、T2(1)～T2(6)时域资源分配方案下，对UE进行SRS资源的预分配，确定每种方案下每个UE的SRS资源分配情况，包括UE是否有SRS、SRS周期、SRS所在符号上的NI。
第四步：根据第三步中获取信息，代入第一步中确定的评价函数，分别计算出T1、T2(1)～T2(6)对应的评价函数f UL(UpSymNum,NI,Capability,SrsPeriod)，f DL(NI,Capability,SrsPeriod)和G(f UL,f DL)＝a*f UL+b*f DL(NI,Capability,SrsPeriod)。
其中，a+b＝1
假设计算得到的T1、T2(1)～T2(6)的评价函数G(f UL,f DL)取值分别为260,280,270, 350,240,250,300。
第五步：假设alfa取值为1.1，T2(1)～T2(6)中T2(3)的G(f UL,f DL)取值最大，为350，且T2(3)的G(f UL,f DL)取值大于T1的G(f UL,f DL)取值1.1*260，故选择T2(3)对应的SRS时域符号资源方案。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对相关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(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，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的方法。
在本实施例中还提供了一种SRS时域资源的动态选择装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图4是根据本发明实施例的SRS时域资源的动态选择装置的结构框图，如图4所示，该装置包括：
第一获取单元402，设置为获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；
确定单元404，设置为根据第一测量信息确定所述当前SRS时域资源配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因子；
替换单元406，设置为在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所 述第一性能参数与预设比例的乘积，所述预设比例大于1。
图5是根据本发明实施例的SRS时域资源的动态选择装置的结构框图，如图5所示，该装置除包括图4所示的所有单元外，还包括：
保持单元502，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
图6是根据本发明实施例的SRS时域资源的动态选择装置的结构框图，如图6所示，该装置除包括图4所示的所有单元外，还包括：
第二获取单元602，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，获取所述第一测量信息。
图7是根据本发明实施例的SRS时域资源的动态选择装置的结构框图，如图7所示，该装置除包括图4所示的所有单元外，第一获取单元还包括：
第三获取模块702，设置为获取所有可用的SRS符号；
确定模块704，设置为将所述所有可用的SRS符号中，任意一个SRS符号确定为一个所述候选SRS时域资源配置，且将所述所有可用的SRS符号中，任意的至少两个SRS符号确定为一个所述候选SRS时域资源配置。需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
本发明的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述计算机可读存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
本实施例中的具体示例可以参考上述实施例及示例性实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本申请的原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
工业实用性
在本发明实施例中，由于在选择时域资源的过程中，通过SRS符号上的干扰影响因子计算了第一性能参数与第二性能参数，从而考虑了大气波导等干扰导致的不同SRS符号上干扰水平的差异对资源选择的影响，在考虑不同符号干扰差异的基础上，还结合SRS可用符号、SRS容量、SRS周期等参数综合评估SRS时域资源分配的性能，因此，可以解决相关小区SRS时域资源选择不合理造成的上下行系统性能低问题，进而达到提高上下行系统性能的效果。

Claims (15)

  1. 一种SRS时域资源的动态选择方法，包括：
    获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；
    根据第一测量信息确定所述当前SRS时域资源配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因子；
    在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所述第一性能参数与预设比例的乘积，所述预设比例大于1。
  2. 根据权利要求1所述的方法，其中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，所述方法还包括：
    在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
  3. 根据权利要求1所述的方法，其中，在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，所述方法还包括：
    获取所述第一测量信息。
  4. 根据权利要求3所述的方法，其中，获取所述第一测量信息包括：
    获取小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子。
  5. 根据权利要求4所述的方法，其中，在获取所述第一测量信息之后，所述方法还包括：
    通过如下公式计算所述第一性能参数或者计算所述第二性能参数：
    G(f UL,f DL)＝a*f UL(NI)+b*f DL(NI)  (1)
    Figure PCTCN2021106574-appb-100001
    Figure PCTCN2021106574-appb-100002
    其中，a+b＝1，所述G(f UL,f DL)为所述第一性能参数或所述第二性能参数，所述RRC表示小区中总的RRC连接用户数，所述SE ul(i)表示用户i的上行基准频谱效率，所述SE dl(i)表示用户i的下行基准频谱效率，所述β(i)表示用户i的上行频谱效率加权因子，所述
    Figure PCTCN2021106574-appb-100003
    表示用户i的下行频谱效率加权因子，所述ξ ul(NI(i))为SRS干扰对上行性能的干扰影响因子，所述ξ dl(NI(i))为SRS干扰对下行性能的干扰影响因子。
  6. 根据权利要求3所述的方法，其中，获取所述第一测量信息包括：
    获取小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。
  7. 根据权利要求6所述的方法，其中，获取所述第一测量信息之后，还包括：
    使用如下公式确定所述第一性能参数或者所述第二性能参数：
    G(f UL,f DL)＝a*f UL+b*f DL(NI,Capability,SrsPeriod)  (4)
    Figure PCTCN2021106574-appb-100004
    Figure PCTCN2021106574-appb-100005
    其中，a+b＝1，所述G(f UL,f DL)为所述第一性能参数或所述第二性能参数，所述RRC表示小区中总的RRC连接用户数，所述θ ul(UpSymNum)为上行符号数对上行系统的影响因子，所述SE ul(i)表示用户i的上行基准频谱效率，所述β(i)表示用户i的上行频谱效率加权因子，所述ξ ul(NI(i))为SRS干扰对上行性能的干扰影响因子，所述δ ul(Capability(i))为SRS容量对上行性能的影响因子，所述
    Figure PCTCN2021106574-appb-100006
    为SRS周期对上行性能的影响因子，所述SE dl(i)表示用户i的下行基准频谱效率，所述
    Figure PCTCN2021106574-appb-100007
    表示用户i的下行频谱效率加权因子，所述ξ dl(NI(i))为SRS干扰对下行性能的干扰影响因子，所述δ dl(Capability(i))为SRS容量对下行性能的影响因子，所述SRS容量指支持配置SRS的用户数，所述
    Figure PCTCN2021106574-appb-100008
    为SRS周期对下行性能的影响因子。
  8. 根据权利要求1至7任意一项所述的方法，其中，获取所述候选SRS时域资源配置包括：
    获取所有可用的SRS符号；
    将所述所有可用的SRS符号中，任意一个SRS符号确定为一个所述候选SRS时域资源配置；
    将所述所有可用的SRS符号中，任意的至少两个SRS符号确定为一个所述候选SRS时域资源配置。
  9. 一种SRS时域资源的动态选择装置，包括：
    第一获取单元，设置为获取当前SRS时域资源配置与候选SRS时域资源配置，其中，所述当前SRS时域资源配置为正在使用的时域符号资源配置；
    确定单元，设置为根据第一测量信息确定所述当前SRS时域资源配置的第一性能参数和所述候选SRS时域资源配置的第二性能参数，其中，所述第一性能参数用于表示在所述当前SRS时域资源配置下的系统性能，所述第二性能参数用于表示在所述候选SRS时域资源配置下的系统性能，所述第一测量信息包括SRS符号上的干扰影响因 子；
    替换单元，设置为在所述候选SRS时域资源配置中存在目标SRS时域资源配置的情况下，将所述当前SRS时域资源配置替换为所述目标SRS时域资源配置中的一个SRS时域资源配置，其中，所述目标SRS时域资源配置的所述第二性能参数大于所述第一性能参数与预设比例的乘积，所述预设比例大于1。
  10. 根据权利要求9所述的装置，其中，所述装置还包括：
    保持单元，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之后，在所述候选SRS时域资源配置中不存在所述目标SRS时域资源配置的情况下，保持所述当前SRS时域资源配置不变。
  11. 根据权利要求9所述的装置，其中，所述装置还包括：
    第二获取单元，设置为在根据所述第一测量信息确定所述当前SRS时域资源配置的所述第一性能参数和所述候选SRS时域资源配置的所述第二性能参数之前，获取所述第一测量信息。
  12. 根据权利要求11所述的装置，其中，所述第二获取单元包括：
    第一获取模块，设置为获取小区中总的RRC连接用户数、每个用户的上行基准频谱效率、每个用户的下行基准频谱效率、每个用户的上行频谱效率加权因子，每个用户的下行频谱效率加权因子，SRS干扰对上行性能的干扰影响因子，SRS干扰对下行性能的干扰影响因子。
  13. 根据权利要求11所述的装置，其中，所述第二获取单元包括：
    第二获取模块，设置为获取小区中总的RRC连接用户数、上行符号数对上行系统的影响因子、每个用户的上行基准频谱效率，每个用户的上行频谱效率加权因子、SRS干扰对上行性能的干扰影响因子、SRS容量对上行性能的影响因子、SRS周期对上行性能的影响因子、每个用户的下行基准频谱效率、每个用户的下行频谱效率加权因子、SRS干扰对下行性能干扰影响因子、SRS容量对下行性能的影响因子、所述SRS容量指支持配置SRS的用户数、SRS周期对下行性能的影响因子。
  14. 一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至8任一项中所述的方法。
  15. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至8任一项中所述的方法。
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