WO2021227648A1 - 一种上行信道状态信息的获取方法及装置 - Google Patents

一种上行信道状态信息的获取方法及装置 Download PDF

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Publication number
WO2021227648A1
WO2021227648A1 PCT/CN2021/081354 CN2021081354W WO2021227648A1 WO 2021227648 A1 WO2021227648 A1 WO 2021227648A1 CN 2021081354 W CN2021081354 W CN 2021081354W WO 2021227648 A1 WO2021227648 A1 WO 2021227648A1
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WIPO (PCT)
Prior art keywords
uplink channel
information
srs
terminal
side device
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PCT/CN2021/081354
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English (en)
French (fr)
Inventor
刘正宣
高秋彬
李辉
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/925,315 priority Critical patent/US20230198711A1/en
Priority to EP21804785.0A priority patent/EP4152857A4/en
Publication of WO2021227648A1 publication Critical patent/WO2021227648A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/364—Delay profiles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • 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
    • H04L5/0048—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
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • 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
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method and device for acquiring uplink channel state information.
  • the reciprocity between the angle information and delay information of the uplink channel and the downlink channel is used, that is, the angle information of the uplink channel It can be used as the angle information of the downlink channel, and the delay information of the uplink channel can be used as the delay information of the downlink channel.
  • the port selection codebook and the enhanced port selection codebook are respectively defined, thereby assisting the network side equipment to select the appropriate precoding matrix.
  • the network side device configures the corresponding Sounding Reference Signal (SRS) resource for the terminal, and the terminal sends the SRS to the network side device based on the SRS resource configuration, so that the network side device can determine the uplink channel through the SRS sent by the terminal Information, and further, obtain angle information and delay information according to the uplink channel information, where the angle information is used to characterize the transmission angle of the signal, and the delay information is used to characterize the time required for the signal from the sending end to the receiving end.
  • SRS Sounding Reference Signal
  • the SRS resources configured for the terminal on the network side are as follows:
  • one SRS resource can be transmitted on N consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols, where the value of N is 1, 2 or 4.
  • OFDM Orthogonal Frequency Division Multiplexing
  • one SRS resource has a comb structure, that is, one SRS resource is not mapped on consecutive subcarriers.
  • the Comb structure can be represented by the Comb parameter, the value of the Comb parameter is 2 or 4, where the value of the Comb parameter is 2 means that an SRS resource is mapped on every other subcarrier, as shown in SRS resource A and SRS resource B in Figure 1. As shown, the value of the Comb parameter is 4, which means that one SRS resource is mapped on three subcarriers, as shown in SRS resource C in FIG. 1.
  • ⁇ U represents the frequency interval of the uplink channel (that is, the interval of subcarriers, physical resource blocks (PRB) or uplink subbands), and ⁇ m represents the delay of the m-th transmission path, Represents the number of resource elements (Resource Element, RE) occupied by sending SRS on the uplink channel subband or PRB, and j represents an imaginary number.
  • RE resource Element
  • the delay vector of the m-th transmission path of the uplink channel can be passed through a discrete Fourier Transform (DFT) basis vector in the frequency domain.
  • DFT discrete Fourier Transform
  • the network side device can capture the transmission path with a shorter delay.
  • the network side equipment adopts the existing SRS resource configuration method to configure SRS resources for the terminal, since the frequency interval of the Comb structure is small, that is, ⁇ U is small, it is impossible to capture a transmission path with a small delay, and thus cannot Obtain more accurate channel delay information.
  • the present disclosure provides a method and device for acquiring uplink channel state information, which are used to capture transmission paths with different delay sizes, thereby designing a higher-precision port selection codebook.
  • a method for acquiring uplink channel state information includes:
  • the network side device determines that it needs to obtain uplink channel state information, it determines the sounding reference signal SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters;
  • the network side device sends the SRS resource configuration information to the terminal, and receives at least one SRS reported by the terminal based on the SRS resource configuration information;
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and determines corresponding uplink channel state information.
  • the uplink channel state information includes angle information and/or delay information, where the angle information is used to characterize the signal transmission angle and the signal arrival angle, and the delay information is used to characterize the signal from the terminal The time required to send to the network side device.
  • the preset bandwidth parameter is determined according to the maximum allowable uplink scheduling partial bandwidth BWP or the downlink scheduling BWP, and the preset frequency domain density parameter is determined according to the frequency domain of the downlink channel state information reference signal CSI-RS
  • the density or precoding matrix indicates the determination of the subband size of the PMI, where the preset bandwidth parameter is an integer multiple of 4. If the preset bandwidth parameter is determined according to the downlink scheduled BWP, the pre The set bandwidth parameter is not greater than the maximum value of the downlink scheduling BWP.
  • the network side device determines SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters, which specifically includes:
  • the network side device determines the bandwidth configuration of at least one SRS resource based on preset bandwidth parameters
  • the network side device determines the frequency domain density of the at least one SRS resource based on preset frequency domain density parameters
  • the network side device determines the time domain parameter N corresponding to the at least one SRS resource based on the type of the service request or the known uplink channel quality information of the terminal;
  • the terminal when the value of N is greater than 1, the terminal is instructed to transmit the at least one SRS in a frequency hopping manner on N orthogonal frequency division multiplexing OFDM symbols in one time slot or between different time slots ,
  • the value of N is equal to 1, it instructs the terminal to transmit the at least one SRS in a frequency hopping manner between different time slots.
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and determines corresponding uplink channel state information, which specifically includes:
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS;
  • the network side device uses the following steps to determine corresponding uplink channel state information:
  • the network-side device determines X spatial basis vectors based on the first uplink channel information included in the at least one uplink channel information, and determines the angle information of the uplink channel based on the X spatial basis vectors; the network The side device uses the X space-domain basis vectors as CSI-RS beams, and uses X ports to send beamformed CSI-RS to the terminal, so that the terminal selects L ports from the X ports ;
  • the network side device receives the port indication information that characterizes the L ports returned by the terminal, and determines M frequency domains based on the L ports and the second uplink channel information included in the at least one uplink channel information Basis vector; the network side device determines the delay information of the uplink channel based on the M frequency domain basis vectors;
  • the X, L, and M are preset integers, and the first uplink channel information and the second uplink channel information are the same or different.
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and determines corresponding uplink channel state information, which specifically includes:
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS;
  • the network side device uses the following steps to determine corresponding uplink channel state information:
  • the network-side device determines a space-domain basis vector and a frequency-domain basis vector based on the at least one uplink channel information, and determines the angle information and time delay of the uplink channel based on the space-domain basis vector and the frequency-domain basis vector information.
  • an apparatus for acquiring uplink channel state information includes:
  • Memory used to store executable instructions
  • the processor is used to read and execute the executable instructions stored in the memory, and execute the following process:
  • the sounding reference signal SRS resource configuration information is determined based on the preset bandwidth parameters, the preset frequency domain density parameters, and the preset time domain parameters;
  • the uplink channel used by the terminal is measured, and corresponding uplink channel state information is determined.
  • the uplink channel state information includes angle information and/or delay information, where the angle information is used to characterize the signal transmission angle and the signal arrival angle, and the delay information is used to characterize the signal from the terminal The time required to send to the network side device.
  • the preset bandwidth parameter is determined according to the maximum allowable uplink scheduling partial bandwidth BWP or the downlink scheduling BWP, and the preset frequency domain density parameter is determined according to the frequency domain of the downlink channel state information reference signal CSI-RS
  • the density or precoding matrix indicates the determination of the subband size of the PMI, where the preset bandwidth parameter is an integer multiple of 4. If the preset bandwidth parameter is determined according to the downlink scheduled BWP, the pre The set bandwidth parameter is not greater than the maximum value of the downlink scheduling BWP.
  • the processor when determining SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters, the processor is specifically configured to:
  • the terminal when the value of N is greater than 1, the terminal is instructed to transmit the at least one SRS in a frequency hopping manner on N orthogonal frequency division multiplexing OFDM symbols in one time slot or between different time slots ,
  • the value of N is equal to 1, it instructs the terminal to transmit the at least one SRS in a frequency hopping manner between different time slots.
  • the processor when measuring the uplink channel used by the terminal based on the at least one SRS, and determining corresponding uplink channel state information, the processor is specifically configured to:
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS;
  • the network side device uses the following steps to determine corresponding uplink channel state information:
  • the network-side device determines X spatial basis vectors based on the first uplink channel information included in the at least one uplink channel information, and determines the angle information of the uplink channel based on the X spatial basis vectors; the network The side device uses the X space-domain basis vectors as CSI-RS beams, and uses X ports to send beamformed CSI-RS to the terminal, so that the terminal selects L ports from the X ports ;
  • the network side device receives the port indication information that characterizes the L ports returned by the terminal, and determines M frequency domains based on the L ports and the second uplink channel information included in the at least one uplink channel information Basis vector; the network side device determines the delay information of the uplink channel based on the M frequency domain basis vectors;
  • the X, L, and M are preset integers, and the first uplink channel information and the second uplink channel information are the same or different.
  • the processor when measuring the uplink channel used by the terminal based on the at least one SRS, and determining corresponding uplink channel state information, the processor is specifically configured to:
  • a space-domain basis vector and a frequency-domain basis vector are determined, and based on the space-domain basis vector and the frequency-domain basis vector, the angle information and time delay information of the uplink channel are determined.
  • an apparatus for acquiring uplink channel state information includes:
  • the configuration unit is configured to determine sounding reference signal SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters when determining that uplink channel state information needs to be acquired;
  • a sending unit configured to send the SRS resource configuration information to the terminal, and receive at least one SRS reported by the terminal based on the SRS resource configuration information
  • the processing unit is configured to measure the uplink channel used by the terminal based on the at least one SRS, and determine corresponding uplink channel state information.
  • a storage medium when an instruction in the storage medium is executed by a processor, enables the processor to execute the method for acquiring uplink channel state information according to any one of the foregoing.
  • the network side device generates SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters. Then, the network side device generates SRS resource configuration information based on the terminal At least one returned SRS measures the uplink channel used by the terminal and determines the corresponding uplink channel state information.
  • the frequency domain density of SRS resources can be adjusted, that is, the frequency domain density of SRS resources can be reduced. Due to the reduced frequency domain density, compared with existing SRS resource configuration methods , It can improve the signal-to-interference and noise ratio of each SRS RE, thereby increasing the coverage of SRS.
  • through bandwidth parameters increase the bandwidth of SRS resource configuration, so that the network-side equipment can capture transmission paths with different delays, thereby designing More high-precision port selection codebook.
  • Figure 1 is a schematic diagram of the frequency domain density of SRS resources in the prior art
  • Fig. 2 is a schematic flowchart of a method for acquiring uplink channel state information provided in an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of frequency domain density of SRS resources provided in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of frequency domain density of another SRS resource provided in an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of the physical architecture of an apparatus for acquiring uplink channel state information provided in an embodiment of the disclosure
  • FIG. 6 is a schematic diagram of the logical architecture of an apparatus for acquiring uplink channel state information provided in an embodiment of the disclosure.
  • the network-side device is based on preset bandwidth parameters, preset frequency domain density parameters, And preset time domain parameters, configure at least one SRS resource for the terminal, and then, when receiving at least one SRS transmitted by the terminal using at least one SRS resource, measure the uplink channel based on the at least one SRS to determine the uplink channel state information .
  • the process of acquiring uplink channel state information is as follows:
  • S201 When the network side device determines that it needs to obtain uplink channel state information, it determines SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters.
  • the uplink channel state information includes any one or a combination of angle information and delay information, where the angle information is used to characterize the signal transmission angle and the signal arrival angle, and the delay information is used to characterize The time required for the signal to be sent from the terminal to the network side device.
  • network-side devices include but are not limited to base stations, micro cells, etc. In the following, only base stations are used as an example for description.
  • the network side device determines that there are but not limited to the following conditions, it determines that it needs to obtain uplink channel state information:
  • the first situation the network side device determines that it needs to obtain the uplink channel state information when it determines to schedule the uplink data transmission of the terminal based on the service request sent by the terminal.
  • the base station determines to schedule the uplink data transmission of the terminal based on the service request sent by the terminal, it determines that it needs to obtain angle information and delay information.
  • the second case the network side device determines that it needs to obtain uplink channel state information when determining precoding for downlink data transmission based on the service request sent by the terminal.
  • the base station determines precoding for downlink data transmission based on the service request sent by the terminal, it determines that it needs to obtain angle information and delay information.
  • the network side device determines that it needs to obtain uplink channel state information, it can use but not limited to the following steps to configure SRS resources:
  • the network side device determines the bandwidth configuration of at least one SRS resource based on preset bandwidth parameters.
  • the preset bandwidth parameter may be determined according to the maximum allowable uplink scheduling partial bandwidth (Bandwidth Part, BWP), or may be determined according to the downlink scheduling BWP, where the preset bandwidth parameter takes a value of 4. If the preset bandwidth parameter is determined according to the BWP of the downlink scheduling, the preset bandwidth parameter is not greater than the maximum value of the BWP of the downlink scheduling.
  • BWP Bandwidth Part
  • the network side device determines the frequency domain density of at least one SRS resource based on the preset frequency domain density parameter.
  • the preset frequency domain density parameter may be determined according to the frequency domain density of the downlink channel state information reference signal (Channel-state information Reference Signal, CSI-RS), or may be determined according to the precoding matrix indicator (Precoding Matrix Indicator). , PMI)
  • the subband size is determined.
  • the preset frequency domain density parameter is determined according to the subband size of the PMI
  • the subband size of the channel quality indication (Channel Quality Indication, CQI) is The subband size of PMI is Then the network side device determines the frequency domain density k of at least one SRS resource based on the preset frequency domain density parameter as Among them, R represents the number of PMIs corresponding to a CQI subband during downlink data transmission, Represents the number of PRBs contained in a CQI subband.
  • the preset frequency domain density parameters are determined according to the frequency domain density of CSI-RS.
  • the frequency domain density of CSI-RS is 0.25 RE/Resource Block (RB)/port PORT, and the base station is based on CSI-RS.
  • Frequency domain density determine that the frequency domain density of SRS resource 1 is 0.25 RE/RB/PORT.
  • the preset frequency domain density parameter is determined according to the subband size of PMI, where the subband size of CQI Is 4PRB, and the value of R is 1.
  • the subband size of PMI If it is 4, the base station determines the frequency domain density k of SRS resource 2 to be 0.25 RE/RB/PORT based on the subband size of CQI and PMI.
  • the network side device determines the time domain parameter N corresponding to at least one SRS resource based on the type of the service request or the known uplink channel quality information of the terminal.
  • the terminal when the value of N is greater than 1, the terminal is instructed to transmit at least one SRS in a frequency hopping manner on N OFDM symbols in one time slot or between different time slots.
  • the value of N When equal to 1, instruct the terminal to send at least one SRS in a frequency hopping manner between different time slots.
  • the base station determines that the time domain parameter N of SRS resource 1 has a value of 1, and the frequency domain density diagram of SRS resource 1 is shown in FIG. 3, where the value of N is 1, indicating the terminal SRS1 is sent by frequency hopping between different time slots.
  • the base station determines that the value of the time domain parameter N of SRS resource 2 is 4 based on the uplink channel quality information of the known terminal, and the frequency domain density diagram of SRS resource 2 is shown in FIG. 4, where the value of N is At 4 o'clock, the terminal is instructed to use frequency hopping to send SRS1 on 4 OFDM symbols in a time slot.
  • the network side device determines SRS resource configuration information of at least one SRS resource based on the bandwidth configuration, frequency domain density, and time domain parameter N.
  • the SRS resource configuration information of at least one SRS resource it is also necessary to determine the period configuration corresponding to the at least one SRS resource based on the preset time domain characteristics.
  • the period configuration is used to characterize the adoption period, SRS is sent in a semi-continuous or aperiodic manner.
  • the base station determines the periodic configuration 1 of the SRS resource 1 based on the preset time domain characteristics, and the periodic configuration 1 indicates that the SRS 1 is sent in an aperiodic manner.
  • At least one SRS resource corresponding to the SRS resource configuration information may be included in the same SRS resource set, or may be included in different SRS resource sets, which is not limited in the present disclosure.
  • the network side device sends SRS resource configuration information to the terminal, and receives at least one SRS reported by the terminal based on the SRS resource configuration information.
  • the base station sends SRS resource configuration information 1 and SRS resource configuration information 2 to the terminal, and receives SRS1 and SRS2 reported by the terminal based on SRS resource configuration information 1 and SRS resource configuration information 2.
  • the network side device measures the uplink channel used by the terminal based on at least one SRS, and determines corresponding uplink channel state information.
  • the following two methods can be adopted, but not limited to, to determine the uplink channel state information:
  • the first method A one-step method is used to determine the uplink channel state information.
  • the network side device measures the uplink channel used by the terminal based on at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS.
  • the uplink channel information includes, but is not limited to, angle information, time delay information, Doppler offset information, uplink channel signal amplitude, phase information and other information. All are encapsulated in the uplink channel information. Therefore, further processing of the uplink channel information is required to obtain various information such as angle information and delay information.
  • the base station measures the uplink channel used by the terminal based on SRS1 and SRS2, and generates uplink channel information corresponding to SRS1 and uplink channel information 2 corresponding to SRS2.
  • the network-side device determines the space-domain basis vector and the frequency-domain basis vector based on at least one uplink channel information.
  • the base station determines the spatial basis vector 1 based on the uplink channel information 1, and determines the frequency domain basis vector 1 based on the uplink channel information 2.
  • the network-side device determines the angle information and delay information of the uplink channel based on the space-domain basis vector and the frequency-domain basis vector.
  • the base station determines the angle information 1 of the uplink channel based on the space-domain basis vector 1, and determines the delay information 1 of the uplink channel based on the frequency-domain basis vector 1.
  • steps B1, B2, and B3 are one step.
  • steps B1, B2, and B3 are one step.
  • the steps are described separately in the present disclosure.
  • the second method A two-step method is used to determine the uplink channel state information.
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS.
  • the base station measures the uplink channel used by the terminal based on SRS1 and SRS2, and generates uplink channel information corresponding to SRS1 and uplink channel information 2 corresponding to SRS2.
  • the network side device determines X spatial basis vectors based on the first uplink channel information included in the at least one uplink channel information, and determines the angle information of the uplink channel based on the X spatial basis vectors.
  • the base station determines 8 spatial base vectors 2 based on the uplink channel information 1, and determines the angle information 2 of the uplink channel based on the 8 spatial base vectors 2.
  • the network-side device uses X spatial base vectors as CSI-RS beams, and uses X ports to send beamformed CSI-RS to the terminal, so that the terminal selects L ports from the X ports.
  • the base station uses 8 spatial base vectors 2 as CSI-RS beams, and uses 8 ports to transmit beamformed CSI-RS to the terminal, so that the terminal selects 4 ports from the 8 ports.
  • the network side device receives the port indication information representing the L ports returned by the terminal, and determines M frequency domain basis vectors based on the second uplink channel information contained in the L ports and the at least one uplink channel information.
  • the base station receives the port indication information returned by the terminal that characterizes the 4 ports selected by the terminal, and determines 4 frequency domain basis vectors 2 based on the 4 ports and the uplink channel information 2.
  • the network side device determines the corresponding time delay information based on the M frequency domain basis vectors.
  • the base station determines the time delay information 2 of the uplink channel based on 4 frequency domain basis vectors 2.
  • R, N, X, L, M and other parameters can be pre-configured by the network side equipment for the terminal, can be pre-defined by the network side equipment and the terminal, or reported by the terminal, and the disclosure is not limited.
  • R, N, The values of X, L, and M are integers.
  • steps C1, C2, and C3 are the first step
  • steps C4 and C5 are the second step.
  • steps C1, C2, and C3 are the first step
  • steps C4 and C5 are the second step.
  • the network side device uses the first method to determine the uplink channel state information.
  • the network side device determines the frequency domain density k of SRS resource 3 to be 0.25RE based on the subband size of the PMI /RB/PORT, and based on the known uplink channel quality information of the terminal, determine the value of the time domain parameter N of SRS resource 3 as 1. Then, the network side equipment based on the bandwidth configuration, frequency domain density k and time domain parameter N, Determine the SRS resource configuration information 3 of the SRS resource 3.
  • the network side device sends the SRS resource configuration information 3 to the terminal, and receives the SRS 3 reported by the terminal based on the SRS resource configuration information 3.
  • the network side device Based on SRS3, the network side device measures the uplink channel used by the terminal and generates uplink channel information 3 corresponding to SRS3. Then, the network side device determines the spatial domain basis vector 3 and frequency domain basis vector 3 based on the uplink channel information 3, and based on The space-domain basis vector 3 and the frequency-domain basis vector 3 respectively determine the angle information 3 and the delay information 3 of the uplink channel.
  • the frequency domain density k of SRS resource 3 is 0.25 RE/RB/PORT, and the value of the time domain parameter N of SRS resource 3 is 1. Since the specific process of determining the bandwidth configuration, frequency domain density k, and time domain parameter N of the SRS3 resource is the same as the above, it will not be repeated here.
  • the network side device sends the SRS resource configuration information 3 to the terminal, and receives the SRS 3 reported by the terminal based on the SRS resource configuration information 3.
  • the network side device Based on SRS3, the network side device measures the uplink channel used by the terminal and generates uplink channel information 3 corresponding to SRS3. Then, the network side device determines 8 spatial basis vectors 3 based on the uplink channel information 3, and based on the 8 spatial basis vectors Vector 3, determine the angle information 3 of the uplink channel, and then, the network side device uses 8 spatial basis vectors 3 as the CSI-RS beam, and uses 8 ports to send the beam-formed CSI-RS to the terminal, so that the terminal starts from 8 Select 4 ports among the four ports, and the network side device receives the port indication information returned by the terminal that characterizes the 4 ports selected by the terminal, and based on the 4 ports and the uplink channel information 3, determines the 4 frequency domain basis vectors 3, and then the network The side device determines the time delay information 3 of the uplink channel based on the four frequency domain basis vectors 3.
  • the network-side device uses the first method to determine the uplink channel state information.
  • one SRS resource uses the resource configuration method in the prior art, and the other One SRS resource adopts the resource configuration method provided in this disclosure.
  • the network side device determines the resource configuration information 4 of the SRS resource 4 based on the bandwidth configuration of the SRS resource 4 and the value of the Comb parameter.
  • the network side device sends SRS resource configuration information 3 and resource configuration information 4 to the terminal, and receives SRS3 and SRS4 reported by the terminal based on the resource configuration information 3 and resource configuration information 4.
  • the network side device measures the uplink channel used by the terminal based on SRS3 and SRS4, and generates uplink channel information 3 corresponding to SRS1 and uplink channel information 4 corresponding to SRS4. Then, the network side device determines the spatial basis vector based on the uplink channel information 4 4. Determine the frequency domain basis vector 4 based on the uplink channel information 1. Then, the network side device determines the angle information 4 of the uplink channel based on the spatial basis vector 4, and determines the delay information of the uplink channel based on the frequency domain basis vector 4. 4.
  • the network side device uses the second method to determine the uplink channel state information.
  • one SRS resource adopts the resource configuration method in the prior art.
  • Another SRS resource adopts the resource configuration method provided in this disclosure.
  • the network side device determines the resource configuration information 4 of the SRS resource 4 based on the bandwidth configuration of the SRS resource 4 and the value of the Comb parameter.
  • the network side device sends the SRS resource configuration information 3 and the resource configuration information 4 to the terminal, and receives the SRS3 and SRS4 returned by the terminal based on the resource configuration information 3 and the resource configuration information 4.
  • the network side device measures the uplink channel used by the terminal based on SRS3 and SRS4, and generates uplink channel information 3 corresponding to SRS1 and uplink channel information 4 corresponding to SRS4. Then, the network side device determines 8 spatial domains based on the uplink channel information 4 Base vector 5, and based on 8 spatial base vectors 5, determine the angle information 5 of the uplink channel. Then, the network side device uses 8 spatial base vectors 5 as CSI-RS beams, and uses 8 ports to send beamforming to the terminal.
  • the CSI-RS allows the terminal to select 4 ports from the 8 ports, and the network side device receives the port indication information returned by the terminal, which characterizes the 4 ports selected by the terminal, and determines 4 based on the 4 ports and the uplink channel information 3 After that, the network-side device determines the time delay information 5 of the uplink channel based on the four frequency-domain basis vectors 5.
  • an embodiment of the present disclosure provides an apparatus for acquiring uplink channel state information, which includes at least:
  • the memory 501 is used to store executable instructions
  • the processor 502 is configured to read and execute executable instructions stored in the memory, and execute the following process:
  • the sounding reference signal SRS resource configuration information is determined based on the preset bandwidth parameters, the preset frequency domain density parameters, and the preset time domain parameters;
  • the uplink channel used by the terminal is measured, and corresponding uplink channel state information is determined.
  • the uplink channel state information includes angle information and/or delay information, where the angle information is used to characterize the signal transmission angle and the signal arrival angle, and the delay information is used to characterize the signal from the terminal The time required to send to the network side device.
  • the preset bandwidth parameter is determined according to the maximum allowable uplink scheduling partial bandwidth BWP or the downlink scheduling BWP, and the preset frequency domain density parameter is determined according to the frequency domain of the downlink channel state information reference signal CSI-RS
  • the density or precoding matrix indicates the determination of the subband size of the PMI, where the preset bandwidth parameter is an integer multiple of 4. If the preset bandwidth parameter is determined according to the downlink scheduled BWP, the pre The set bandwidth parameter is not greater than the maximum value of the downlink scheduling BWP.
  • the processor 502 when determining SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters, is specifically configured to:
  • the terminal when the value of N is greater than 1, the terminal is instructed to transmit the at least one SRS in a frequency hopping manner on N orthogonal frequency division multiplexing OFDM symbols in one time slot or between different time slots ,
  • the value of N is equal to 1, it instructs the terminal to transmit the at least one SRS in a frequency hopping manner between different time slots.
  • the processor 502 when measuring the uplink channel used by the terminal based on the at least one SRS, and determining corresponding uplink channel state information, the processor 502 is specifically configured to:
  • the network side device measures the uplink channel used by the terminal based on the at least one SRS, and generates at least one uplink channel information corresponding to the at least one SRS;
  • the network side device uses the following steps to determine corresponding uplink channel state information:
  • the network-side device determines X spatial basis vectors based on the first uplink channel information included in the at least one uplink channel information, and determines the angle information of the uplink channel based on the X spatial basis vectors; the network The side device uses the X space-domain basis vectors as CSI-RS beams, and uses X ports to send beamformed CSI-RS to the terminal, so that the terminal selects L ports from the X ports ;
  • the network side device receives the port indication information that characterizes the L ports returned by the terminal, and determines M frequency domains based on the L ports and the second uplink channel information included in the at least one uplink channel information Basis vector; the network side device determines the delay information of the uplink channel based on the M frequency domain basis vectors;
  • the X, L, and M are preset integers, and the first uplink channel information and the second uplink channel information are the same or different.
  • the processor 502 when measuring the uplink channel used by the terminal based on the at least one SRS, and determining corresponding uplink channel state information, the processor 502 is specifically configured to:
  • a space-domain basis vector and a frequency-domain basis vector are determined, and based on the space-domain basis vector and the frequency-domain basis vector, the angle information and time delay information of the uplink channel are determined.
  • the transceiver 503 is used to receive and send data under the control of the processor 502.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 502 and various circuits of the memory represented by the memory 501 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein.
  • the bus interface provides the interface.
  • the transceiver 503 may be a plurality of elements, including a transmitter and a transceiver, and provide a unit for communicating with various other devices on the transmission medium.
  • the processor 502 is responsible for managing the bus architecture and general processing, and the memory 501 can store data used by the processor 502 when performing operations.
  • an embodiment of the present disclosure provides an apparatus for acquiring uplink channel state information. As shown in FIG. 6, it at least includes: a configuration unit 601, a sending unit 602, and a processing unit 603, where:
  • the configuration unit 601 is configured to determine sounding reference signal SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters when it is determined that uplink channel state information needs to be acquired;
  • the sending unit 602 is configured to send the SRS resource configuration information to the terminal, and receive at least one SRS reported by the terminal based on the SRS resource configuration information;
  • the processing unit 603 is configured to measure the uplink channel used by the terminal based on the at least one SRS, and determine corresponding uplink channel state information.
  • the configuration unit 601, the sending unit 602, and the processing unit 603 cooperate with each other to realize the functions of the apparatus for acquiring uplink channel state information in the foregoing various embodiments.
  • the embodiments of the present disclosure provide a storage medium.
  • the processor can execute any one implemented by the apparatus for acquiring uplink channel state information in the above process. Item method.
  • the network side device generates SRS resource configuration information based on preset bandwidth parameters, preset frequency domain density parameters, and preset time domain parameters. Then, the network side device generates SRS resource configuration information based on the terminal At least one returned SRS measures the uplink channel used by the terminal and determines the corresponding uplink channel state information.
  • the frequency domain density of SRS resources can be adjusted, that is, the frequency domain density of SRS resources can be reduced. Due to the reduced frequency domain density, compared with existing SRS resource configuration methods It can improve the signal-to-interference-to-noise ratio of each SRS RE, thereby increasing the coverage of SRS.
  • bandwidth parameters it can increase the bandwidth of SRS resource configuration, so that network-side equipment can capture transmission paths with different delays, thereby designing Produce a more high-precision port selection codebook.
  • the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本公开涉及通信技术领域，特别涉及一种上行信道状态信息的获取方法及装置，用于获取较小时延的传输路径，该方法为：网络侧设备基于预设的带宽参数、频域密度参数、时域参数，生成SRS资源配置信息，并接收终端基于SRS资源配置信息返回的至少一个SRS，然后，网络侧设备基于至少一个SRS，对终端使用的上行信道进行测量，并确定相应的上行信道状态信息。这样，通过预设的带宽参数、频域密度参数，生成SRS资源配置信息，能够增加SRS资源的带宽配置，降低SRS资源的频域密度，从而提升了每个SRSRE的信干噪比，并使得网络侧设备能够捕获不同时延大小的传输路径，从而设计出更高精度的端口选择码本。

Description

一种上行信道状态信息的获取方法及装置
相关申请的交叉引用
本申请要求在2020年05月15日提交中国专利局、申请号为202010412184.8、申请名称为“一种上行信道状态信息的获取方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及通信技术领域，特别涉及一种上行信道状态信息的获取方法及装置。
背景技术
在5G新空口(5G New Radio，5G NR)系统中，针对类型II(Type II)码本，利用上行信道和下行信道的角度信息和时延信息的互易性，即，上行信道的角度信息可作为下行信道的角度信息，上行信道的时延信息可作为下行信道的时延信息，分别定义了端口选择码本和增强的端口选择码本，从而辅助网络侧设备选择合适的预编码矩阵。
具体的，网络侧设备为终端配置相应的探测参考信号(Sounding Reference Signal，SRS)资源，终端基于SRS资源配置，向网络侧设备发送SRS，这样，网络侧设备可以通过终端发送的SRS确定上行信道信息，进而，根据上行信道信息，得到角度信息和时延信息，其中，角度信息用于表征信号的发送角度，时延信息用于表征信号从发送端到接收端所需要的时间。
目前，参阅图1所示，网络侧为终端配置的SRS资源如下：
在时域上，一个SRS资源可以在N个连续正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号上发送，其中，N的取值为1、2或4。参阅图1所示，SRS资源A占用1个OFDM符号、SRS资源B占用4个OFDM符号、SRS资源C占用2个OFDM符号。
在频域上，一个SRS资源呈梳状(Comb)结构，即，一个SRS资源不在连续的子载波上映射。Comb结构可由Comb参数表示，Comb参数的取值为2或4，其中，Comb参数的取值为2表示一个SRS资源在隔一个子载波上映射，如图1中SRS资源A和SRS资源B所示，Comb参数的取值为4表示一个SRS资源在隔三个子载波上映射，如图1中SRS资源C所示。
假设，基于OFDM调制传输的某一OFDM符号上指向第m个传输路径的时延向量表示为
Figure PCTCN2021081354-appb-000001
其中，η U表示上行信道的频率间隔(即子载波、物理资源块(Physical Resource Block，PRB)或上行子带的间隔)，τ m表示第m个传输路径的时延，
Figure PCTCN2021081354-appb-000002
表示在上行信道子带或PRB上发送SRS所占的资源元素(Resource Element，RE)个数，j表示一个虚数。
而网络侧通过终端发送的SRS，确定上行信道信息之后，该上行信道的第m个传输路径的时延向量，可通过一个频域上的离散傅里叶变换(Discrete Fourier Transform，DFT)基向量表示，该DFT基向量为
Figure PCTCN2021081354-appb-000003
其中，
Figure PCTCN2021081354-appb-000004
表示频域上所有候选DFT基向量中的一个索引。
当公式(2)无限趋近公式(1)时，由公式(1)和(2)可知
Figure PCTCN2021081354-appb-000005
此时，则有
Figure PCTCN2021081354-appb-000006
根据公式(3)可知，传输径的时延信息与η U和
Figure PCTCN2021081354-appb-000007
相关，当
Figure PCTCN2021081354-appb-000008
的取值越大时，则网络侧设备能捕获更小时延的传输路径。
显然，若网络侧设备采用现有的SRS资源配置方式，为终端配置SRS资源，由于Comb结构的频率间隔较小，即η U较小，因此，无法捕获得较小时 延的传输路径，从而无法获得更准确的信道时延信息。
为了捕获得更小时延的传输路径，则需要使终端在更大的带宽上发送SRS，即，增大
Figure PCTCN2021081354-appb-000009
的取值，这将导致需要使终端在更多的频域资源上发送SRS。然而，受终端功率限制，在进行上行传输时，终端不可能在更多的子载波、PRB或子带上同时发送SRS。特别地，对于边缘终端而言，通常需要在更小的带宽上发送SRS，例如部分子带，以增加上行覆盖。
由此可见，需要设计一种新的方案，以克服上述缺陷。
发明内容
本公开提供了一种上行信道状态信息的获取方法及装置，用以捕获不同时延大小的传输路径，从而设计出更高精度的端口选择码本。
本公开实施例提供的具体技术方案如下：
第一方面，一种上行信道状态信息的获取方法，包括：
网络侧设备确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
所述网络侧设备将所述SRS资源配置信息发送至终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
可选的，所述上行信道状态信息包含角度信息和/或时延信息，其中，所述角度信息用于表征信号发射角度和信号到达角度，所述时延信息用于表征信号从所述终端发送到所述网络侧设备所需要的时间。
可选的，所述预设的带宽参数根据最大允许的上行调度的部分带宽BWP或下行调度的BWP确定，所述预设的频域密度参数根据下行信道状态信息参考信号CSI-RS的频域密度或预编码矩阵指示PMI的子带大小确定，其中，所述预设的带宽参数的取值为4的整数倍，若所述预设的带宽参数根据下行调 度的BWP确定，则所述预设的带宽参数不大于下行调度的BWP的最大值。
可选的，所述网络侧设备基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息，具体包括：
所述网络侧设备基于预设的带宽参数，确定至少一个SRS资源的带宽配置；
所述网络侧设备基于预设的频域密度参数，确定所述至少一个SRS资源的频域密度；
所述网络侧设备基于业务请求的类型或已知终端的上行信道质量信息，确定所述至少一个SRS资源对应的时域参数N；
所述网络侧设备基于所述带宽配置、所述频域密度和所述时域参数N，确定至少一个SRS资源的SRS资源配置信息；
其中，当N的取值大于1时，指示所述终端在一个时隙内或者不同的时隙间的N个正交频分复用OFDM符号上，采用跳频的方式发送所述至少一个SRS，N的取值等于1时，指示所述终端在不同的时隙间采用跳频的方式发送所述至少一个SRS。
可选的，所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息，具体包括：
所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
所述网络侧设备基于所述至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于所述X个空域基向量，确定所述上行信道的角度信息；所述网络侧设备将所述X个空域基向量作为CSI-RS的波束，并采用X个端口向所述终端发送波束赋形的CSI-RS，令所述终端从所述X个端口中选择L个端口；
所述网络侧设备接收所述终端返回的表征所述L个端口的端口指示信息，并基于所述L个端口和所述至少一个上行信道信息包含的第二上行信 道信息，确定M个频域基向量；所述网络侧设备基于所述M个频域基向量，确定所述上行信道的时延信息；
其中，所述X、L、M为预设的整数，所述第一上行信道信息和所述第二上行信道信息相同，或者，不相同。
可选的，所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息，具体包括：
所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
所述网络侧设备基于所述至少一个上行信道信息，确定空域基向量和频域基向量，并基于所述空域基向量和所述频域基向量，确定所述上行信道的角度信息和时延信息。
第二方面，一种上行信道状态信息的获取装置，包括：
存储器，用于存储可执行指令；
处理器，用于读取并执行存储器中存储的可执行指令，执行下列过程：
确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
将所述SRS资源配置信息发送至所述终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
可选的，所述上行信道状态信息包含角度信息和/或时延信息，其中，所述角度信息用于表征信号发射角度和信号到达角度，所述时延信息用于表征信号从所述终端发送到所述网络侧设备所需要的时间。
可选的，所述预设的带宽参数根据最大允许的上行调度的部分带宽BWP或下行调度的BWP确定，所述预设的频域密度参数根据下行信道状态信息参考信号CSI-RS的频域密度或预编码矩阵指示PMI的子带大小确定，其中，所 述预设的带宽参数的取值为4的整数倍，若所述预设的带宽参数根据下行调度的BWP确定，则所述预设的带宽参数不大于下行调度的BWP的最大值。
可选的，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息时，所述处理器具体用于：
基于预设的带宽参数，确定至少一个SRS资源的带宽配置；
基于预设的频域密度参数，确定所述至少一个SRS资源的频域密度；
基于业务请求的类型或已知终端的上行信道质量信息，确定所述至少一个SRS资源对应的时域参数N；
所述网络侧设备基于所述带宽配置、所述频域密度和所述时域参数N，确定至少一个SRS资源的SRS资源配置信息；
其中，当N的取值大于1时，指示所述终端在一个时隙内或者不同的时隙间的N个正交频分复用OFDM符号上，采用跳频的方式发送所述至少一个SRS，N的取值等于1时，指示所述终端在不同的时隙间采用跳频的方式发送所述至少一个SRS。
可选的，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器具体用于：
所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
所述网络侧设备基于所述至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于所述X个空域基向量，确定所述上行信道的角度信息；所述网络侧设备将所述X个空域基向量作为CSI-RS的波束，并采用X个端口向所述终端发送波束赋形的CSI-RS，令所述终端从所述X个端口中选择L个端口；
所述网络侧设备接收所述终端返回的表征所述L个端口的端口指示信息，并基于所述L个端口和所述至少一个上行信道信息包含的第二上行信道信息，确定M个频域基向量；所述网络侧设备基于所述M个频域基向 量，确定所述上行信道的时延信息；
其中，所述X、L、M为预设的整数，所述第一上行信道信息和所述第二上行信道信息相同，或者，不相同。
可选的，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器具体用于：
基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
采用以下步骤，确定相应的上行信道状态信息：
基于所述至少一个上行信道信息，确定空域基向量和频域基向量，并基于所述空域基向量和所述频域基向量，确定所述上行信道的角度信息和时延信息。
第三方面，一种上行信道状态信息的获取装置，包括：
配置单元，用于确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
发送单元，用于将所述SRS资源配置信息发送至所述终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
处理单元，用于基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
第四方面，一种存储介质，当所述存储介质中的指令由处理器执行时，使得所述处理器能够执行如上述任一项所述的上行信道状态信息的获取方法。
综上所述，本公开实施例中，网络侧设备基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，生成SRS资源配置信息，然后，网络侧设备基于终端返回的至少一个SRS，对终端使用的上行信道进行测量，并确定相应的上行信道状态信息。这样，通过频域密度参数，生成SRS资源配置信息，可以调整SRS资源的频域密度，即，可以降低SRS资源的频域密度，由于频域密度降低，与现有的SRS资源配置方式相比，能够提升每个SRS RE 的信干噪比，从而增加了SRS的覆盖范围，同时，通过带宽参数，增加SRS资源配置带宽，使得网络侧设备能够捕获不同时延大小的传输路径，从而设计出更高精度的端口选择码本。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为已有技术下SRS资源的频域密度示意图；
图2本公开实施例中提供的一种上行信道状态信息的获取方法的流程示意图；
图3本公开实施例中提供的一种SRS资源的频域密度示意图；
图4本公开实施例中提供的另一种SRS资源的频域密度示意图；
图5为本公开实施例中提供的一种上行信道状态信息的获取装置的实体架构示意图；
图6为本公开实施例中提供的一种上行信道状态信息的获取装置的逻辑架构示意图。
具体实施方式
在NR系统中，为了获取较小时延的传输路径，从而设计出更高精度的端口选择码本，本公开实施例中，网络侧设备基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，为终端配置至少一个SRS资源，进而，在接收到终端采用至少一个SRS资源传输的至少一个SRS时，基于至少一个SRS，对上行信道进行测量，确定上行信道状态信息。
下面结合附图对本公开优先的实施方式做出进一步详细说明。
参阅图2所示，本公开实施例中，上行信道状态信息的获取流程如下：
S201：网络侧设备确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息。
需要说明的是，本公开实施例中，上行信道状态信息包含角度信息和时延信息中任一项或组合，其中，角度信息用于表征信号发射角度和信号到达角度，时延信息用于表征信号从终端发送到网络侧设备所需要的时间。
本公开实施例中，网络侧设备包括但不限于基站、微蜂窝等，下文中，仅以基站为例进行说明。
网络侧设备确定存在但不限于以下几种情况时，确定需要获取上行信道状态信息：
第一种情况：网络侧设备基于终端发送的业务请求，确定对终端的上行数据传输进行调度时，确定需要获取上行信道状态信息。
例如，基站基于终端发送的业务请求，确定对终端的上行数据传输进行调度时，确定需要获取角度信息和时延信息。
第二种情况：网络侧设备基于终端发送的业务请求，确定进行下行数据传输的预编码时，确定需要获取上行信道状态信息。
例如，基站基于终端发送的业务请求，确定进行下行数据传输的预编码时，确定需要获取角度信息和时延信息。
网络侧设备确定需要获取上行信道状态信息时，可采用但不限于以下步骤对SRS资源进行配置：
A1、网络侧设备基于预设的带宽参数，确定至少一个SRS资源的带宽配置。
本公开实施例中，预设的带宽参数可以根据最大允许的上行调度的部分带宽(Bandwidth Part，BWP)确定，也可以根据下行调度的BWP确定，其中，预设的带宽参数的取值为4的整数倍，若预设的带宽参数根据下行调度的BWP确定，则预设的带宽参数不大于下行调度的BWP的最大值。
例如，假设，预设的带宽参数根据最大允许的上行调度的BWP确定，最大允许的上行调度的BWP为256PRB，基站基于最大允许的上行调度的BWP， 确定SRS资源1的带宽配置为C SRS＝57，B SRS＝0，其中，C SRS＝57，B SRS＝0表征SRS资源1的带宽为256PRB，SRS资源1采用非跳频方式发送。
又例如，假设，预设的带宽参数根据下行调度的BWP确定，下行调度的BWP为256PRB，基站基于下行调度的BWP，将SRS资源1的带宽配置为C SRS＝57，B SRS＝2，其中，C SRS＝57，B SRS＝2表征SRS资源1的带宽为256PRB，SRS资源2采用跳频方式发送。
A2、网络侧设备基于预设的频域密度参数，确定至少一个SRS资源的频域密度。
本公开实施例中，预设的频域密度参数可以根据下行信道状态信息参考信号(Channel-state information Reference Signal，CSI-RS)的频域密度确定，也可以根据预编码矩阵指示(Precoding Matrix Indicator，PMI)的子带大小确定。
具体的，若预设的频域密度参数根据PMI的子带大小确定，信道质量指示(Channel Quality Indication，CQI)的子带大小为
Figure PCTCN2021081354-appb-000010
PMI的子带大小为
Figure PCTCN2021081354-appb-000011
则网络侧设备基于预设的频域密度参数，确定至少一个SRS资源的频域密度k为
Figure PCTCN2021081354-appb-000012
其中，R表示下行数据传输时一个CQI子带对应的PMI个数，
Figure PCTCN2021081354-appb-000013
表示一个CQI子带中包含的PRB个数。
例如，假设，预设的频域密度参数根据CSI-RS的频域密度确定，CSI-RS的频域密度为0.25RE/资源块(Resource Block，RB)/端口PORT，基站基于CSI-RS的频域密度，确定SRS资源1的频域密度为0.25RE/RB/PORT。
又例如，假设，预设的频域密度参数根据PMI的子带大小确定，其中，CQI的子带大小
Figure PCTCN2021081354-appb-000014
为4PRB，R的取值为1，此时，PMI的子带大小
Figure PCTCN2021081354-appb-000015
为4，那么，基站基于CQI和PMI的子带大小，确定SRS资源2的频域密度k为0.25RE/RB/PORT。
A3、网络侧设备基于业务请求的类型或已知终端的上行信道质量信息，确定至少一个SRS资源对应的时域参数N。
本公开实施例中，当N的取值大于1时，指示终端在一个时隙内或者不 同的时隙间的N个OFDM符号上，采用跳频的方式发送至少一个SRS，当N的取值等于1时，指示终端在不同的时隙间采用跳频的方式发送至少一个SRS。
例如，基站基于业务请求的类型，确定SRS资源1的时域参数N的取值为1，SRS资源1的频域密度示意图参阅图3所示，其中，N的取值为1时，指示终端在不同的时隙间采用跳频的方式发送SRS1。
又例如，基站基于已知终端的上行信道质量信息，确定SRS资源2的时域参数N的取值为4，SRS资源2的频域密度示意图参阅图4所示，其中，N的取值为4时，指示终端在一个时隙内的4个OFDM符号上，采用跳频的方式发送SRS1。
A4、网络侧设备基于带宽配置、频域密度和时域参数N，确定至少一个SRS资源的SRS资源配置信息。
例如，基站基于带宽配置256PRB、频域密度0.25RE/RB/PORT，以及时域参数N＝1，确定SRS资源1的SRS资源配置信息1。
又例如，基站基于带宽配置256PRB、频域密度0.25RE/RB/PORT，以及时域参数N＝4，确定SRS资源2的SRS资源配置信息2。
需要说明的是，本公开实施中，确定至少一个SRS资源的SRS资源配置信息时，还需要基于预设的时域特性，确定至少一个SRS资源对应的周期配置，周期配置用于表征采用周期、半持续或非周期的方式发送SRS。
例如，基站基于预设的时域特性，确定SRS资源1的周期配置1，周期配置1表征采用非周期的方式发送SRS1。
需要说明的是，本公开实施中，SRS资源配置信息对应的至少一个SRS资源，可包含于同一SRS资源集中，也可包含于不同的SRS资源集中，本公开对此并不限定。
S202：网络侧设备将SRS资源配置信息发送至终端，并接收终端基于SRS资源配置信息上报的至少一个SRS。
例如，基站将SRS资源配置信息1、SRS资源配置信息2发送至终端，并接收终端基于SRS资源配置信息1、SRS资源配置信息2上报的SRS1、SRS2。
S203：网络侧设备基于至少一个SRS，对终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
本公开实施例中，可采用但不限于以下两种方式，确定上行信道状态信息：
第一种方式：采用一步的方式确定上行信道状态信息。
B1、网络侧设备基于至少一个SRS，对终端使用的上行信道进行测量，生成至少一个SRS对应的至少一个上行信道信息。
需要说明的是，本公开实施例中，上行信道信息中包含但不限于角度信息、时延信息、多普勒偏移信息、上行信道信号幅度、相位信息等各项信息，由于上述各项信息均封装于上行信道信息中，因此，需要对上行信道信息进行进一步处理，才能获取角度信息、时延信息等各项信息。
例如，基站基于SRS1、SRS2，对终端使用的上行信道进行测量，生成SRS1对应的上行信道信息1、SRS2对应的上行信道信息2。
B2、网络侧设备基于至少一个上行信道信息，确定空域基向量和频域基向量。
例如，基站基于上行信道信息1，确定空域基向量1，并基于上行信道信息2，确定频域基向量1。
B3、网络侧设备基于空域基向量和频域基向量，确定上行信道的角度信息和时延信息。
例如，基站基于空域基向量1，确定上行信道的角度信息1，并基于频域基向量1，确定上行信道的时延信息1。
需要说明的是，本公开实施例中，采用一步的方式确定上行信道状态信息时，步骤B1、B2、B3为一个步骤，本公开中为了描述清楚，将步骤拆分描述。
第二种方式：采用两步的方式确定上行信道状态信息。
C1、网络侧设备基于至少一个SRS，对终端使用的上行信道进行测量，生成至少一个SRS对应的至少一个上行信道信息。
例如，基站基于SRS1、SRS2，对终端使用的上行信道进行测量，生成SRS1对应的上行信道信息1、SRS2对应的上行信道信息2。
C2、网络侧设备基于至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于X个空域基向量，确定上行信道的角度信息。
例如，基站基于上行信道信息1，确定8个空域基向量2，并基于8个空域基向量2，确定上行信道的角度信息2。
C3、网络侧设备将X个空域基向量作为CSI-RS的波束，并采用X个端口向终端发送波束赋形的CSI-RS，令终端从X个端口中选择L个端口。
例如，基站将8个空域基向量2作为CSI-RS的波束，并采用8个端口向终端发送波束赋形的CSI-RS，令终端从8个端口中选择4个端口。
C4、网络侧设备接收终端返回的表征L个端口的端口指示信息，并基于L个端口和至少一个上行信道信息包含的第二上行信道信息，确定M个频域基向量。
例如，基站接收终端返回的表征终端选择的4个端口的端口指示信息，并基于4个端口和上行信道信息2，确定4个频域基向量2。
C5、网络侧设备基于M个频域基向量，确定相应的时延信息。
例如，基站基于4个频域基向量2，确定上行信道的时延信息2。
需要说明的是，本公开实施例中，R、N、
Figure PCTCN2021081354-appb-000016
X、L、M等参数可以是网络侧设备预先为终端配置的，可以是网络侧设备和终端预定义的，也可以是终端上报，并公开对此并不限定，其中，R、N、
Figure PCTCN2021081354-appb-000017
X、L、M的取值为整数。
需要说明的是，本公开实施例中，采用两步的方式确定上行信道状态信息时，步骤C1、C2、C3为第一步，步骤C4、C5为第二步，本公开中为了描述清楚，将每一步操作拆分描述。
接下来，以网络侧设备为终端配置一个SRS资源为例，对网络侧设备采用第一种方式确定上行信道状态信息进行说明。
假设，下行调度的BWP为256PRB，CQI的子带大小
Figure PCTCN2021081354-appb-000018
为4PRB，R的 取值为1，网络侧设备确定需要获取上行信道状态信息时，基于下行调度的BWP，确定SRS资源3的带宽配置为C SRS＝57，B SRS＝0，其中，C SRS＝57，B SRS＝0表征SRS资源3的带宽为256PRB，SRS资源3采用非跳频方式发送，然后，网络侧设备基于PMI的子带大小，确定SRS资源3的频域密度k为0.25RE/RB/PORT，并基于已知终端的上行信道质量信息，确定SRS资源3的时域参数N的取值为1，接着，网络侧设备基于带宽配置、频域密度k和时域参数N，确定SRS资源3的SRS资源配置信息3。
网络侧设备将SRS资源配置信息3发送至终端，并接收终端基于SRS资源配置信息3上报的SRS3。
网络侧设备基于SRS3，对终端使用的上行信道进行测量，并生成SRS3对应的上行信道信息3，然后，网络侧设备基于上行信道信息3，确定空域基向量3和频域基向量3，并基于空域基向量3和频域基向量3，分别确定上行信道的角度信息3和时延信息3。
接下来，仍以网络侧设备为终端配置一个SRS资源为例，对网络侧设备采用第二种方式确定上行信道状态信息进行说明。
假设，下行调度的BWP为256PRB，网络侧设备确定需要获取上行信道状态信息时，确定SRS资源3的SRS资源配置信息3，其中，SRS资源3的带宽配置为C SRS＝57，B SRS＝0，SRS资源3的频域密度k为0.25RE/RB/PORT，SRS资源3的时域参数N的取值为1。由于确定SRS3资源的带宽配置、频域密度k、时域参数N的具体过程与上文相同，在此不再赘述。
网络侧设备将SRS资源配置信息3发送至终端，并接收终端基于SRS资源配置信息3上报的SRS3。
网络侧设备基于SRS3，对终端使用的上行信道进行测量，并生成SRS3对应的上行信道信息3，然后，网络侧设备基于上行信道信息3，确定8个空域基向量3，并基于8个空域基向量3，确定上行信道的角度信息3，接着，网络侧设备将8个空域基向量3作为CSI-RS的波束，并采用8个端口向终端发送波束赋形的CSI-RS，令终端从8个端口中选择4个端口，网络侧设备接 收终端返回的表征终端选择的4个端口的端口指示信息，并基于4个端口和上行信道信息3，确定4个频域基向量3，之后，网络侧设备基于4个频域基向量3，确定上行信道的时延信息3。
接下来，以网络侧设备为终端配置两个SRS资源为例，对网络侧设备采用第一种方式确定上行信道状态信息进行说明，其中，一个SRS资源采用现有技术中的资源配置方式，另一个SRS资源采用本公开中提供的资源配置方式。
假设，下行调度的BWP为256PRB，网络侧设备确定需要获取上行信道状态信息时，首先，基于现有技术中的资源配置方式，将SRS资源4的带宽配置为C SRS＝14，B SRS＝0，并将Comb参数的取值设置为2，其中，C SRS＝14，B SRS＝0表征SRS资源1的带宽为52PRB，SRS资源4采用非跳频方式发送，Comb参数的取值为2表征SRS资源4在频域上每隔一个子载波传输，然后，网络侧设备基于SRS资源4的带宽配置、Comb参数的取值，确定SRS资源4的资源配置信息4。同时，网络侧设备基于下行调度的BWP、PMI的子带大小、已知终端的上行信道质量信息，确定SRS资源3的SRS资源配置信息3，其中，SRS资源3的带宽配置为C SRS＝57，B SRS＝0，SRS资源3的频域密度k为0.25RE/RB/PORT，SRS资源3的时域参数N的取值为1。由于确定SRS3资源的带宽配置、频域密度k、时域参数N的具体过程与上文相同，在此不再赘述。
网络侧设备将SRS资源配置信息3、资源配置信息4发送至终端，并接收终端基于资源配置信息3、资源配置信息4上报的SRS3、SRS4。
网络侧设备基于SRS3、SRS4，对终端使用的上行信道进行测量，并生成SRS1对应的上行信道信息3、SRS4对应的上行信道信息4，然后，网络侧设备基于上行信道信息4，确定空域基向量4，并基于上行信道信息1，确定频域基向量4，然后，网络侧设备基于空域基向量4，确定上行信道的角度信息4，并基于频域基向量4，确定上行信道的时延信息4。
接下来，仍以网络侧设备为终端配置两个SRS资源为例，对网络侧设备 采用第二种方式确定上行信道状态信息进行说明，其中，一个SRS资源采用现有技术中的资源配置方式，另一个SRS资源采用本公开中提供的资源配置方式。
假设，下行调度的BWP为256PRB，网络侧设备确定需要获取上行信道状态信息时，首先，基于现有技术中的资源配置方式，将SRS资源4的带宽配置为C SRS＝14，B SRS＝0，并将Comb参数的取值设置为2，其中，C SRS＝14，B SRS＝0表征SRS资源1的带宽为52PRB，SRS资源4采用非跳频方式发送，Comb参数的取值为2表征SRS资源4在频域上每隔一个子载波传输，然后，网络侧设备基于SRS资源4的带宽配置、Comb参数的取值，确定SRS资源4的资源配置信息4。同时，网络侧设备基于下行调度的BWP、PMI的子带大小、已知终端的上行信道质量信息，确定SRS资源3的SRS资源配置信息3，其中，SRS资源3的带宽配置为C SRS＝57，B SRS＝0，SRS资源3的频域密度k为0.25RE/RB/PORT，SRS资源3的时域参数N的取值为1。由于确定SRS3资源的带宽配置、频域密度k、时域参数N的具体过程与上文相同，在此不再赘述。
网络侧设备将SRS资源配置信息3、资源配置信息4发送至终端，并接收终端基于资源配置信息3、资源配置信息4返回的SRS3、SRS4。
网络侧设备基于SRS3、SRS4，对终端使用的上行信道进行测量，并生成SRS1对应的上行信道信息3、SRS4对应的上行信道信息4，然后，网络侧设备基于上行信道信息4，确定8个空域基向量5，并基于8个空域基向量5，确定上行信道的角度信息5，接着，网络侧设备将8个空域基向量5作为CSI-RS的波束，并采用8个端口向终端发送波束赋形的CSI-RS，令终端从8个端口中选择4个端口，网络侧设备接收终端返回的表征终端选择的4个端口的端口指示信息，并基于4个端口和上行信道信息3，确定4个频域基向量5，之后，网络侧设备基于4个频域基向量5，确定上行信道的时延信息5。
基于同一发明构思，参阅图5所示，本公开实施例提供一种上行信道状态信息的获取装置，至少包括：
存储器501，用于存储可执行指令；
处理器502，用于读取并执行存储器中存储的可执行指令，执行下列过程：
确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
将所述SRS资源配置信息发送至所述终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
可选的，所述上行信道状态信息包含角度信息和/或时延信息，其中，所述角度信息用于表征信号发射角度和信号到达角度，所述时延信息用于表征信号从所述终端发送到所述网络侧设备所需要的时间。
可选的，所述预设的带宽参数根据最大允许的上行调度的部分带宽BWP或下行调度的BWP确定，所述预设的频域密度参数根据下行信道状态信息参考信号CSI-RS的频域密度或预编码矩阵指示PMI的子带大小确定，其中，所述预设的带宽参数的取值为4的整数倍，若所述预设的带宽参数根据下行调度的BWP确定，则所述预设的带宽参数不大于下行调度的BWP的最大值。
可选的，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息时，所述处理器502具体用于：
基于预设的带宽参数，确定至少一个SRS资源的带宽配置；
基于预设的频域密度参数，确定所述至少一个SRS资源的频域密度；
基于业务请求的类型或已知终端的上行信道质量信息，确定所述至少一个SRS资源对应的时域参数N；
所述网络侧设备基于所述带宽配置、所述频域密度和所述时域参数N，确定至少一个SRS资源的SRS资源配置信息；
其中，当N的取值大于1时，指示所述终端在一个时隙内或者不同的时隙间的N个正交频分复用OFDM符号上，采用跳频的方式发送所述至少一个SRS，N的取值等于1时，指示所述终端在不同的时隙间采用跳频的方式发送 所述至少一个SRS。
可选的，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器502具体用于：
所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
所述网络侧设备基于所述至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于所述X个空域基向量，确定所述上行信道的角度信息；所述网络侧设备将所述X个空域基向量作为CSI-RS的波束，并采用X个端口向所述终端发送波束赋形的CSI-RS，令所述终端从所述X个端口中选择L个端口；
所述网络侧设备接收所述终端返回的表征所述L个端口的端口指示信息，并基于所述L个端口和所述至少一个上行信道信息包含的第二上行信道信息，确定M个频域基向量；所述网络侧设备基于所述M个频域基向量，确定所述上行信道的时延信息；
其中，所述X、L、M为预设的整数，所述第一上行信道信息和所述第二上行信道信息相同，或者，不相同。
可选的，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器502具体用于：
基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
采用以下步骤，确定相应的上行信道状态信息：
基于所述至少一个上行信道信息，确定空域基向量和频域基向量，并基于所述空域基向量和所述频域基向量，确定所述上行信道的角度信息和时延信息。收发机503，用于在处理器502的控制下接收和发送数据。
其中，在图5中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器502代表的一个或多个处理器和存储器501代表的存储器的各种电 路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机503可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器502负责管理总线架构和通常的处理，存储器501可以存储处理器502在执行操作时所使用的数据。
基于同一发明构思，本公开实施例中，提供一种上行信道状态信息的获取装置，参阅图6所示，至少包括：配置单元601、发送单元602和处理单元603，其中，
配置单元601，用于确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
发送单元602，用于将所述SRS资源配置信息发送至所述终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
处理单元603，用于基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
配置单元601、发送单元602和处理单元603相互配合，以实现上行信道状态信息的获取装置在上述各个实施例中的功能。
基于同一发明构思，本公开实施例提供一种存储介质，当所述存储介质中的指令由处理器执行时，使得所述处理器能够执行上述流程中上行信道状态信息的获取装置实现的任一项方法。
综上所述，本公开实施例中，网络侧设备基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，生成SRS资源配置信息，然后，网络侧设备基于终端返回的至少一个SRS，对终端使用的上行信道进行测量，并确定相应的上行信道状态信息。这样，通过频域密度参数，生成SRS资源配置信息，可以调整SRS资源的频域密度，即，可以降低SRS资源的频域密度，由于频域密度降低，与现有的SRS资源配置方式相比，能够提升每个SRS RE 的信干噪比，从而增加了SRS的覆盖范围，同时，通过带宽参数，能够增加SRS资源配置带宽，使得网络侧设备能够捕获不同时延大小的传输路径，从而设计出更高精度的端口选择码本。
对于系统/装置实施例而言，由于其基本相似于方法实施例，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者一个操作与另一个实体或者另一个操作区分开来，而不一定要求或者暗示这些实体或者操作之间存在任何这种实际的关系或者顺序。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的 处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例做出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (12)

  1. 一种上行信道信息的获取方法，其特征在于，包括：
    网络侧设备确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
    所述网络侧设备将所述SRS资源配置信息发送至终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
    所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
  2. 如权利要求1所述的方法，其特征在于，所述预设的带宽参数根据最大允许的上行调度的部分带宽BWP或下行调度的BWP确定，所述预设的频域密度参数根据下行信道状态信息参考信号CSI-RS的频域密度或预编码矩阵指示PMI的子带大小确定，其中，所述预设的带宽参数的取值为4的整数倍，若所述预设的带宽参数根据下行调度的BWP确定，则所述预设的带宽参数不大于下行调度的BWP的最大值。
  3. 如权利要求1或2所述的方法，其特征在于，所述网络侧设备基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息，具体包括：
    所述网络侧设备基于预设的带宽参数，确定至少一个SRS资源的带宽配置；
    所述网络侧设备基于预设的频域密度参数，确定所述至少一个SRS资源的频域密度；
    所述网络侧设备基于业务请求的类型或已知终端的上行信道质量信息，确定所述至少一个SRS资源对应的时域参数N；
    所述网络侧设备基于所述带宽配置、所述频域密度和所述时域参数N，确定至少一个SRS资源的SRS资源配置信息；
    其中，当N的取值大于1时，指示所述终端在一个时隙内或者不同的时隙间的N个正交频分复用OFDM符号上，采用跳频的方式发送所述至少一个SRS，N的取值等于1时，指示所述终端在不同的时隙间采用跳频的方式发送所述至少一个SRS。
  4. 如权利要求1或2所述的方法，其特征在于，所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息，具体包括：
    所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
    所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
    所述网络侧设备基于所述至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于所述X个空域基向量，确定所述上行信道状态信息中的角度信息；所述网络侧设备将所述X个空域基向量作为CSI-RS的波束，并采用X个端口向所述终端发送波束赋形的CSI-RS，令所述终端从所述X个端口中选择L个端口；
    所述网络侧设备接收所述终端返回的表征所述L个端口的端口指示信息，并基于所述L个端口和所述至少一个上行信道信息包含的第二上行信道信息，确定M个频域基向量；所述网络侧设备基于所述M个频域基向量，确定所述上行信道状态信息中的时延信息；
    其中，所述X、L、M为预设的整数，所述第一上行信道信息和所述第二上行信道信息相同，或者，不相同。
  5. 如权利要求1或2所述的方法，其特征在于，所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息，具体包括：
    所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
    所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
    所述网络侧设备基于所述至少一个上行信道信息，确定空域基向量和频域基向量，并基于所述空域基向量和所述频域基向量，确定所述上行信道状态信息中的角度信息和时延信息。
  6. 一种上行信道状态信息的获取装置，其特征在于，包括：
    存储器，用于存储可执行指令；
    处理器，用于读取并执行存储器中存储的可执行指令，执行下列过程：
    确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
    将所述SRS资源配置信息发送至终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
    基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
  7. 如权利要求6所述的装置，其特征在于，所述预设的带宽参数根据最大允许的上行调度的部分带宽BWP或下行调度的BWP确定，所述预设的频域密度参数根据下行信道状态信息参考信号CSI-RS的频域密度或预编码矩阵指示PMI的子带大小确定，其中，所述预设的带宽参数的取值为4的整数倍，若所述预设的带宽参数根据下行调度的BWP确定，则所述预设的带宽参数不大于下行调度的BWP的最大值。
  8. 如权利要求6或7所述的装置，其特征在于，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定SRS资源配置信息时，所述处理器具体用于：
    基于预设的带宽参数，确定至少一个SRS资源的带宽配置；
    基于预设的频域密度参数，确定所述至少一个SRS资源的频域密度；
    基于业务请求的类型或已知终端的上行信道质量信息，确定所述至少一个SRS资源对应的时域参数N；
    所述网络侧设备基于所述带宽配置、所述频域密度和所述时域参数N，确定至少一个SRS资源的SRS资源配置信息；
    其中，当N的取值大于1时，指示所述终端在一个时隙内或者不同的时隙间的N个正交频分复用OFDM符号上，采用跳频的方式发送所述至少一个SRS，N的取值等于1时，指示所述终端在不同的时隙间采用跳频的方式发送所述至少一个SRS。
  9. 如权利要求6或7所述的装置，其特征在于，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器具体用于：
    所述网络侧设备基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
    所述网络侧设备采用以下步骤，确定相应的上行信道状态信息：
    所述网络侧设备基于所述至少一个上行信道信息包含的第一上行信道信息，确定X个空域基向量，并基于所述X个空域基向量，确定所述上行信道状态信息中的角度信息；所述网络侧设备将所述X个空域基向量作为CSI-RS的波束，并采用X个端口向所述终端发送波束赋形的CSI-RS，令所述终端从所述X个端口中选择L个端口；
    所述网络侧设备接收所述终端返回的表征所述L个端口的端口指示信息，并基于所述L个端口和所述至少一个上行信道信息包含的第二上行信道信息，确定M个频域基向量；所述网络侧设备基于所述M个频域基向量，确定所述上行信道状态信息中的时延信息；
    其中，所述X、L、M为预设的整数，所述第一上行信道信息和所述第二上行信道信息相同，或者，不相同。
  10. 如权利要求6或7所述的装置，其特征在于，基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息时，所述处理器具体用于：
    基于所述至少一个SRS，对所述终端使用的上行信道进行测量，生成所述至少一个SRS对应的至少一个上行信道信息；
    采用以下步骤，确定相应的上行信道状态信息：
    基于所述至少一个上行信道信息，确定空域基向量和频域基向量，并基于所述空域基向量和所述频域基向量，确定所述上行信道状态信息中的角度信息和时延信息。
  11. 一种上行信道状态信息的获取装置，其特征在于，包括：
    配置单元，用于确定需要获取上行信道状态信息时，基于预设的带宽参数、预设的频域密度参数、以及预设的时域参数，确定探测参考信号SRS资源配置信息；
    发送单元，用于将所述SRS资源配置信息发送至终端，并接收所述终端基于所述SRS资源配置信息上报的至少一个SRS；
    处理单元，用于基于所述至少一个SRS，对所述终端使用的上行信道进行测量，并确定相应的上行信道状态信息。
  12. 一种存储介质，其特征在于，当所述存储介质中的指令由处理器执行时，使得所述处理器能够执行如权利要求1至5中任一项所述的上行信道状态信息的获取方法。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023131256A1 (zh) * 2022-01-06 2023-07-13 维沃移动通信有限公司 信道测量方法、终端及网络侧设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117528779A (zh) * 2022-07-25 2024-02-06 维沃移动通信有限公司 信息配置方法、装置、终端、网络侧设备及可读存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101674655A (zh) * 2009-10-14 2010-03-17 中兴通讯股份有限公司 一种上行及下行信道信息获取方法和系统
CN103945541A (zh) * 2010-02-11 2014-07-23 电信科学技术研究院 触发srs信号发送的方法以及设备
CN104079373A (zh) * 2013-03-28 2014-10-01 华为技术有限公司 一种确定上行信道状态信息的方法和装置
KR101460331B1 (ko) * 2012-12-11 2014-11-11 주식회사 케이티 이동 통신 시스템 및 그 시스템에서의 다중 셀 기반 무선 자원 할당 방법
CN109391304A (zh) * 2017-08-11 2019-02-26 电信科学技术研究院 一种数据传输方法、基站和终端

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107135053B (zh) * 2016-02-26 2019-08-16 北京佰才邦技术有限公司 探测参考信号的传输方法、装置及终端
US10911195B2 (en) * 2017-01-08 2021-02-02 Lg Electronics Inc. Method for uplink transmission and reception in wireless communication system and apparatus therefor
CN108632008B (zh) * 2017-03-24 2023-06-02 华为技术有限公司 一种参考信号发送方法及装置
CN113489577B (zh) * 2017-08-09 2023-03-24 中兴通讯股份有限公司 参考信号配置信息的指示方法、基站及终端
CN109495232B (zh) * 2017-08-11 2020-04-14 华为技术有限公司 发送和接收参考信号的方法、网络设备、终端设备和系统
CN109802810B (zh) * 2017-11-17 2021-07-09 华为技术有限公司 发送探测参考信号srs的方法和装置
CN111082907B (zh) * 2018-10-22 2021-06-01 成都华为技术有限公司 一种确定参考信号的测量值的方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101674655A (zh) * 2009-10-14 2010-03-17 中兴通讯股份有限公司 一种上行及下行信道信息获取方法和系统
CN103945541A (zh) * 2010-02-11 2014-07-23 电信科学技术研究院 触发srs信号发送的方法以及设备
KR101460331B1 (ko) * 2012-12-11 2014-11-11 주식회사 케이티 이동 통신 시스템 및 그 시스템에서의 다중 셀 기반 무선 자원 할당 방법
CN104079373A (zh) * 2013-03-28 2014-10-01 华为技术有限公司 一种确定上行信道状态信息的方法和装置
CN109391304A (zh) * 2017-08-11 2019-02-26 电信科学技术研究院 一种数据传输方法、基站和终端

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4152857A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023131256A1 (zh) * 2022-01-06 2023-07-13 维沃移动通信有限公司 信道测量方法、终端及网络侧设备

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