WO2021223503A1 - 资源分配方法、设备和存储介质 - Google Patents

资源分配方法、设备和存储介质 Download PDF

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Publication number
WO2021223503A1
WO2021223503A1 PCT/CN2021/079019 CN2021079019W WO2021223503A1 WO 2021223503 A1 WO2021223503 A1 WO 2021223503A1 CN 2021079019 W CN2021079019 W CN 2021079019W WO 2021223503 A1 WO2021223503 A1 WO 2021223503A1
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Prior art keywords
length
resource
subcarriers
transmission band
frequency domain
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PCT/CN2021/079019
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English (en)
French (fr)
Inventor
暴桐
辛雨
华健
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ZTE Corp
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ZTE Corp
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Priority to US17/923,812 priority Critical patent/US12402111B2/en
Priority to EP21800962.9A priority patent/EP4149190A4/en
Priority to KR1020227042398A priority patent/KR102909912B1/ko
Priority to CA3178065A priority patent/CA3178065A1/en
Publication of WO2021223503A1 publication Critical patent/WO2021223503A1/zh
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
    • H04L12/5692—Selection among different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation

Definitions

  • This application relates to the field of communications, for example, to a resource allocation method, device, and storage medium.
  • the fifth Generation New Radio (5G NR) uplink supports single-carrier Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveforms
  • the reference signals supported by this waveform include: demodulation reference signal (DeModulation Reference Signal, DMRS), phase tracking reference signal (Phase Tracking Reference Signal, PTRS), etc.
  • the reference signal sequence carried by the reference signal includes: ZC (Zadoff-Chu) sequence, ⁇ /2 binary phase shift keying (Binary Phase Shift Keying, BPSK) modulation symbol, etc.
  • the wireless communication system uses the reference signal to estimate the characteristics of the channel, which helps to offset the distortion of the signal and improve the performance of the communication system.
  • the transmission characteristics of the high-frequency scene have changed. For example, the frequency spectrum, modulation coding and waveform of the wireless communication system in the high-frequency scene have been adjusted, and the reference signal and reference signal supported by the new waveform have been adjusted.
  • the carried reference signal sequence will also be adjusted, such as Golay sequence. Therefore, how to allocate frequency domain resources in a high frequency scenario to make the waveform more flexible is an urgent problem to be solved.
  • the present application provides a resource allocation method, device, and storage medium, which realize the allocation of frequency domain resources in a high frequency scenario.
  • An embodiment of the present application provides a resource allocation method, including:
  • the number of resource blocks is determined according to the length of the reference signal sequence, the frequency domain filtering operation roll-off factor and the number of subcarriers contained in each resource block; and frequency domain resources are allocated to the transmission band according to the number of resource blocks.
  • An embodiment of the present application provides a resource allocation device, including:
  • the determining module is configured to determine the number of resource blocks according to the length of the reference signal sequence, the frequency domain filtering operation roll-off factor and the number of subcarriers contained in each resource block; the allocator is configured to allocate the transmission band according to the number of resource blocks Frequency domain resources.
  • An embodiment of the present application provides a device, including: a communication module, a memory, and one or more processors; the communication module is configured to perform communication interaction between at least two communication nodes; the memory is configured to store One or more programs; when the one or more programs are executed by the one or more processors, the one or more processors implement the resource allocation method described in any of the foregoing embodiments.
  • An embodiment of the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, the resource allocation method described in any of the foregoing embodiments is implemented.
  • FIG. 1 is a flowchart of a resource allocation method provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of yet another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of yet another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of yet another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of yet another frequency domain resource allocation provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of time domain resource allocation provided by an embodiment of the present application.
  • FIG. 10 is a structural block diagram of a resource allocation device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • Fig. 1 is a flowchart of a resource allocation method provided by an embodiment of the present application. This embodiment may be executed by the terminal side (for example, user equipment), or may be executed by the network side (for example, a base station). As shown in Figure 1, this embodiment includes: S110-S120.
  • S110 Determine the number of resource blocks according to the length of the reference signal sequence, the frequency domain filtering operation roll-off factor, and the number of subcarriers included in each resource block.
  • S120 Allocate frequency domain resources for the transmission band according to the number of resource blocks.
  • the reference signal sequence may be transmitted on the time domain resources of the transmission band.
  • the transmission band may be the entire transmission band in the channel bandwidth in the communication system, or may be a sub-band in the channel bandwidth.
  • the number of resource blocks is determined according to the length of the reference signal sequence, the roll-off factor of the frequency domain filtering operation, and the number of subcarriers contained in each resource block, and the frequency domain resources are allocated to the transmission band according to the number of resource blocks, which can be convenient
  • the mapping of physical transmission resources allows users to flexibly schedule physical resources. After the frequency domain resources are allocated to the transmission band, the frequency domain resources allocated by the transmission band may be allocated to the user, so that the user's data is transmitted within the frequency domain resources allocated by the transmission band.
  • the length of the reference signal sequence satisfies a power of 2 or is another integer.
  • the transmission band includes: a reference signal block and a data block; the reference signal block and the data block are allocated the same number of resource blocks; the reference signal sequence is transmitted on the time domain resources of the reference signal block or the transmission band; the transmission band It is the entire transmission band in the channel bandwidth in the communication system, or the sub-band in the channel bandwidth.
  • the method for determining the number of resource blocks further includes:
  • the number of resource blocks is determined according to the length of the data block, the roll-off factor of the frequency domain filtering operation, and the number of subcarriers contained in each resource block.
  • the length of one data block (or Orthogonal Frequency Division Multiplexing (OFDM) symbol) (that is, the number of modulation symbols included in the data block) may be the same as the length of the reference signal sequence.
  • frequency domain resources can also be allocated to the transmission band by the length of the data block, which facilitates the mapping of physical transmission resources and the flexible scheduling of physical resources by users.
  • the length of the data block includes: the length of the data constellation modulation symbol and the length of the reference signal modulation symbol; the length of the data block is equal to the sum of the length of the data constellation modulation symbol and the length of the reference signal modulation symbol, where the data The length of the constellation modulation symbol is less than or equal to the length of the data block and greater than or equal to zero; the length of the reference signal modulation symbol is less than or equal to the length of the data block and greater than or equal to zero.
  • the length of the data block is N
  • the length of the data constellation modulation symbol is M
  • the length of the reference signal modulation symbol is S
  • the number of resource blocks satisfies the following formula:
  • I the number of resource blocks
  • I the number of subcarriers included in each resource block
  • N the length of the reference signal sequence
  • ⁇ the roll-off factor of the frequency domain filtering operation
  • the transmission band adopts single carrier type waveform modulation.
  • the single-carrier type waveform modulation includes: Discrete Fourier Transform (DFT) operation or Fast Fourier Transform (FFT) operation.
  • DFT Discrete Fourier Transform
  • FFT Fast Fourier Transform
  • the single carrier type waveform modulation includes: Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform modulation or single carrier frequency division Multiple access (Single Carrier-Frequency Division Multiple Access, SC-FDMA) waveform modulation.
  • DFT-s-OFDM Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing
  • SC-FDMA single carrier frequency division Multiple access
  • allocating frequency domain resources for the transmission band according to the number of resource blocks includes:
  • a first preset number of subcarriers are allocated to the transmission band, where the first preset number is a product value of the number of resource blocks and the number of subcarriers included in each resource block.
  • the first preset number is a product value of the number of resource blocks and the number of subcarriers included in each resource block.
  • the first preset number is a product value of the number of resource blocks and the number of subcarriers included in each resource block.
  • allocating frequency domain resources for the transmission band according to the number of resource blocks includes:
  • the second preset number of subcarriers or the third preset number of subcarriers are allocated to the transmission band; the second preset number is the rounded-up value of the number of resource blocks and each resource A product value of the number of subcarriers included in a block, and the third preset number is a product value of the number of resource blocks rounded down and the number of subcarriers included in each resource block.
  • the second preset number may be allocated to the transmission band (Ie, the product value of the rounded-up value of the number of resource blocks and the number of sub-carriers contained in each resource block) sub-carriers, or the third preset number is allocated to the transmission band (The product value of the rounded down value of the number of resource blocks and the number of subcarriers contained in each resource block) subcarriers. in, To round up, Is rounded down.
  • the resource allocation method further includes:
  • the first threshold value is configured, and the first threshold value is used to determine whether to perform round-up or round-down operations on the number of resource blocks; the first threshold value is related to the modulation order of the modulation symbol of the data constellation.
  • the number of resource blocks can be an integer or a non-integer.
  • a first threshold value T for determining whether to round up or down the number of resource blocks can be set to flexibly allocate frequency domain resources to users.
  • the first threshold value is related to the modulation order of the modulation symbol of the data constellation, that is, when the modulation order of the modulation symbol of the data constellation is relatively high, the user interference is relatively large, and it can be set to determine the effect of the resource block.
  • the first threshold T for rounding up or rounding down the number is a little larger, and the number of resource blocks is rounded up to protect the subcarriers to reduce interference between users; in the case where the modulation order of the modulation symbols of the data constellation is relatively low If user interference is relatively small, the first threshold T used to determine whether to round up or down the number of resource blocks can be set to be smaller, and the number of resource blocks is rounded down to improve the utilization of physical resources.
  • the fourth preset number when the fourth preset number is less than or equal to the first threshold, the second preset number of subcarriers is allocated to the transmission band; in the case where the fourth preset number is greater than the first threshold Next, a third preset number of subcarriers are allocated to the transmission band; the fourth preset number is the difference between the rounded-up value of the number of resource blocks and the number of resource blocks.
  • the fourth preset number is exist In the case of the conveyor belt Subcarriers; in In the case of the conveyor belt Sub-carriers.
  • the resource length of the second preset number of subcarriers is greater than the first value
  • the resource length of the second preset number of subcarriers is greater than Part of the carriers of the first value are set as protection sub-carriers
  • the first value is a value determined according to the length of the reference signal sequence and the roll-off factor of the frequency domain filtering operation. In the embodiment, assuming that the length of the reference signal sequence is N and the roll-off factor of the frequency domain filtering operation is ⁇ , the first value may be N ⁇ (1+ ⁇ ).
  • the second preset number When the resource length of each subcarrier is greater than N ⁇ (1+ ⁇ ), it will be allocated Some or all of the sub-carriers whose resource length of each sub-carrier is greater than N ⁇ (1+ ⁇ ) are set as protection sub-carriers, thereby reducing interference between users.
  • the frequency domain of the transmission band is greater than the third preset The resource length of the number of subcarriers is removed or zeroed.
  • the transmission band in the frequency domain is greater than the allocated The part of the signal of the resource length of each subcarrier is directly cut off or zeroed, thereby improving the utilization rate of physical resources and reducing interference between users.
  • the third preset number of sub-carriers when the third preset number of sub-carriers is allocated to the transmission band, and the resource length of the third preset number of sub-carriers is less than the first value, the signal in the frequency domain of the transmission band and the adjacent transmission The band signals partially overlap.
  • the third preset amount is allocated When the resource length of each subcarrier is less than N ⁇ (1+ ⁇ ), the signal of the transmission band in the frequency domain can partially overlap with the signals of other adjacent transmission bands. The advantage is to improve the utilization of physical resources and reduce users. Interference between.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is an integer and is allocated for the conveyor belt Sub-carriers.
  • the transmission zone contains reference signal blocks and data blocks, and resource blocks of the same number of resource blocks are allocated for the reference signal blocks and data blocks.
  • the frequency domain resources of the transmission band include: Subcarriers and (for example, ) OFDM symbols, the reference signal block occupies the first OFDM symbol (in other embodiments, the reference signal block may also occupy other OFDM symbols), and the data block occupies the 2nd to 14th OFDM symbols.
  • the frequency domain resources allocated by the transmission band are allocated to users, and the user's data is transmitted in the frequency domain resources allocated by the transmission band.
  • the resource block contains 12 consecutive carriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is a non-integer, assuming that the first threshold T for judging whether the number of resource blocks is rounded up or down is set to 0.5, which satisfies Conveyor belt allocation Sub-carriers.
  • the part of the sub-carriers whose resource length of each sub-carrier is greater than N ⁇ (1+ ⁇ ) is set as the protection sub-carrier, that is, the reference signal block and the data block occupy the second sub-carrier to the ninth sub-carrier of the frequency domain resources allocated by the transmission band,
  • the 0th subcarrier and the 1st subcarrier at the left edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers, and the 10th subcarrier and the 11th subcarrier at the right edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers.
  • the frequency domain resources in the transmission band include: OFDM symbols, the reference signal block occupies the first OFDM symbol, and the data block occupies the 2nd to 14th OFDM symbols.
  • the reference signal sequence may be transmitted on a transmission belt.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is a non-integer, and the first threshold T for judging whether the number of resource blocks is rounded up or down is set to 1/3, which satisfies Conveyor belt allocation Sub-carriers.
  • the part of subcarriers whose resource length of each subcarrier is greater than N ⁇ (1+ ⁇ ) is set as the protection subcarrier, that is, the reference signal block and the data block occupy the first subcarrier to the 22nd subcarrier of the frequency domain resources allocated by the transmission band,
  • the 0th subcarrier at the left edge of the frequency domain resources allocated by the transmission band is set as a guard subcarrier
  • the 23rd subcarrier at the right edge of the frequency domain resources allocated by the transmission band is set as a guard subcarrier.
  • the frequency domain resources in the transmission band include: OFDM symbols, the reference signal block occupies the first OFDM symbol, and the data block occupies the 2nd to 14th OFDM symbols.
  • the subcarriers set as the frequency domain resources of the protection subcarriers may be symmetrical.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the resource length of each subcarrier is less than N ⁇ (1+ ⁇ ), which will be greater than the allocation in the frequency domain of the transmission band
  • the part of the signal of the resource length of each subcarrier is directly cut off (that is, the effect is the same as zeroing).
  • the frequency domain resources in the transmission band include: OFDM symbols, the reference signal block occupies the 14th OFDM symbol, and the data block occupies the 1st to 13th OFDM symbols.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is a non-integer.
  • each subcarrier If the resource length of each subcarrier is greater than N ⁇ (1+ ⁇ ), it will be allocated
  • the part of subcarriers whose resource length of each subcarrier is greater than N ⁇ (1+ ⁇ ) is set as protection subcarriers, that is, the reference signal blocks and data blocks occupy the 4th to 19th subcarriers of the frequency domain resources allocated by the transmission band,
  • the 0th to 3rd subcarriers on the left edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers, and the 20th to 23rd subcarriers on the right edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers.
  • the frequency domain resources in the transmission band include: OFDM symbols, the reference signal block occupies the 14th OFDM symbol, and the data block occupies the 1st to 13th OFDM symbols.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is a non-integer.
  • the first threshold value T for judging whether the number of resource blocks is rounded up or down is set to 0.5, which satisfies Conveyor belt allocation Sub-carriers.
  • the resource length of each subcarrier is less than N ⁇ (1+ ⁇ ), and the signal with the transmission band in the frequency domain partially overlaps with other adjacent transmitted signals.
  • the frequency domain resources in the transmission band include: OFDM symbols, the reference signal block occupies the first OFDM symbol, and the data block occupies the 2nd to 14th OFDM symbols.
  • FIG. 8 is a schematic diagram of yet another frequency domain resource allocation provided by an embodiment of the present application.
  • N the length of the reference signal sequence
  • the length of a data block (or OFDM symbol) is the same as the length of the reference signal sequence N
  • the frequency domain resources are allocated by the length of the data block N, that is, by Allocate frequency domain resources for the transmission band.
  • Is the number of resource blocks It is the number of subcarriers contained in each resource block.
  • the reference signal sequence is transmitted on the transmission belt, and the same number of resource blocks is allocated for the reference signal block and the data block.
  • the resource block contains 12 consecutive subcarriers in the frequency domain, namely
  • the number of resource blocks can be calculated which is Is a non-integer.
  • the first threshold value T for judging whether the number of resource blocks is rounded up or down is set to 0.5, which satisfies Conveyor belt allocation Sub-carriers.
  • M>0 And S>0 that is, the data block contains not only data constellation modulation symbols, but also reference signal modulation symbols.
  • the frequency domain resources allocated by the transmission band include Subcarriers and OFDM symbols.
  • FIG. 9 is a schematic diagram of time domain resource allocation provided by an embodiment of the present application.
  • the first OFDM symbol configures a reference signal block
  • the second to 15th OFDM symbols configure a data block.
  • the reference signal modulation symbol in the data block is the same as the reference signal block, that is, the header of the data block is inserted
  • the sequence comes from the head part of the reference signal block, and the occupied resource size is the same, and the contained content is the same;
  • the tail insertion sequence of the data block comes from the tail part of the reference signal block, and the occupied resource size is the same, and the contained content is the same.
  • each subcarrier is greater than N ⁇ (1+ ⁇ )
  • the part of the sub-carriers whose resource length of each sub-carrier is greater than N ⁇ (1+ ⁇ ) is set as the protection sub-carrier, that is, the reference signal block and the data block occupy the second sub-carrier to the ninth sub-carrier of the frequency domain resources allocated by the transmission band
  • the 0th subcarrier and the 1st subcarrier at the left edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers
  • the 10th subcarrier and the 11th subcarrier at the right edge of the frequency domain resources allocated by the transmission band are set as guard subcarriers.
  • FIG. 10 is a structural block diagram of a resource allocation device provided in an embodiment of the present application. As shown in FIG. 10, this embodiment includes: a determining module 210 and a distributor 220.
  • the determining module 210 is configured to determine the number of resource blocks according to the length of the reference signal sequence, the frequency domain filtering operation roll-off factor and the number of subcarriers contained in each resource block; the allocator 220 is configured to allocate the transmission band according to the number of resource blocks Frequency domain resources.
  • the resource allocation device provided in this embodiment is configured to implement the resource allocation method of the embodiment shown in FIG.
  • the transmission band includes: a reference signal block and a data block; the reference signal block and the data block are allocated the same number of resource blocks; the reference signal sequence is transmitted on the time domain resources of the reference signal block or the transmission band; the transmission band is The entire transmission band in the channel bandwidth or subbands in the channel bandwidth in a communication system.
  • the method for determining the number of resource blocks further includes:
  • the number of resource blocks is determined according to the length of the data block, the roll-off factor of the frequency domain filtering operation, and the number of subcarriers contained in each resource block.
  • the length of the data block includes: the length of the data constellation modulation symbol and the length of the reference signal modulation symbol; the length of the data block is equal to the sum of the length of the data constellation modulation symbol and the length of the reference signal modulation symbol, where the data The length of the constellation modulation symbol is less than or equal to the length of the data block and greater than or equal to zero; the length of the reference signal modulation symbol is less than or equal to the length of the data block and greater than or equal to zero.
  • the number of resource blocks satisfies the following formula:
  • I the number of resource blocks
  • I the number of subcarriers included in each resource block
  • N the length of the reference signal sequence
  • ⁇ the roll-off factor of the frequency domain filtering operation
  • the transmission band adopts single carrier type waveform modulation.
  • the single carrier type waveform modulation includes: DFT operation or FFT operation.
  • the single carrier type waveform modulation includes: DFT-s-OFDM waveform modulation or SC-FDMA waveform modulation.
  • allocating frequency domain resources for the transmission band according to the number of resource blocks includes:
  • a first preset number of subcarriers are allocated to the transmission band, where the first preset number is a product value of the number of resource blocks and the number of subcarriers included in each resource block.
  • allocating frequency domain resources for the transmission band according to the number of resource blocks includes:
  • the second preset number of subcarriers or the third preset number of subcarriers are allocated to the transmission band; the second preset number is the rounded-up value of the number of resource blocks and each resource A product value of the number of subcarriers included in a block, and the third preset number is a product value of the number of resource blocks rounded down and the number of subcarriers included in each resource block.
  • the resource allocation device when the number of resource blocks is non-integer, the resource allocation device further includes:
  • the configurator is configured to configure the first threshold value, the first threshold value is used to determine whether to perform round-up or round-down operations on the number of resource blocks; the first threshold value is related to the modulation order of the modulation symbol of the data constellation .
  • the fourth preset number when the fourth preset number is less than or equal to the first threshold, the second preset number of subcarriers is allocated to the transmission band; in the case where the fourth preset number is greater than the first threshold Next, a third preset number of subcarriers are allocated to the transmission band; the fourth preset number is the difference between the rounded-up value of the number of resource blocks and the number of resource blocks.
  • the resource length of the second preset number of subcarriers is greater than the first value
  • the resource length of the second preset number of subcarriers is greater than
  • the carrier of the first value part is set as a protection subcarrier; the first value is a value determined according to the length of the reference signal sequence and the roll-off factor of the frequency domain filtering operation.
  • the frequency domain of the transmission band is greater than the third preset The resource length of the number of subcarriers is removed or zeroed.
  • the signal in the frequency domain of the transmission band and the adjacent transmission The band signals partially overlap.
  • FIG. 11 is a schematic structural diagram of a device provided by an embodiment of the present application.
  • the device provided by the present application includes: a processor 310, a memory 320, and a communication module 330.
  • the number of processors 310 in the device may be one or more.
  • One processor 310 is taken as an example in FIG. 11.
  • the number of memories 320 in the device may be one or more.
  • One memory 320 is taken as an example in FIG. 11.
  • the processor 310, the memory 320, and the communication module 330 of the device may be connected through a bus or in other ways. In FIG. 11, the connection through a bus is taken as an example.
  • the device may be a user side (for example, user equipment), or a network side (for example, a base station).
  • the memory 320 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the device of any embodiment of the present application (for example, the determining module 210 in the resource allocation apparatus). And distributor 220).
  • the memory 320 may include a program storage area and a data storage area.
  • the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the device, and the like.
  • the memory 320 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
  • the memory 320 may include a memory remotely provided with respect to the processor 310, and these remote memories may be connected to the device through a network.
  • Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the communication module 330 is configured to communicate and interact with other synchronization nodes.
  • the above-provided device can be configured to execute the resource allocation method provided in any of the above-mentioned embodiments, and has corresponding functions and effects.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions.
  • the computer-executable instructions When executed by a computer processor, they are used to perform a resource allocation method.
  • the method includes: according to the length and frequency domain of the reference signal sequence.
  • the filter operation roll-off factor and the number of sub-carriers contained in each resource block determine the number of resource blocks; the frequency domain resources are allocated to the transmission band according to the number of resource blocks.
  • user equipment covers any suitable type of wireless user equipment, such as mobile phones, portable data processing devices, portable web browsers, or vehicular mobile stations.
  • the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
  • some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
  • Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
  • ISA Instruction Set Architecture
  • the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
  • the computer program can be stored on the memory.
  • the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disk (CD)), etc.
  • Computer-readable media may include non-transitory storage media.
  • the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
  • DSP Digital Signal Processing
  • ASICs application specific integrated circuits
  • FPGA Field-Programmable Gate Array
  • FPGA Field-Programmable Gate Array

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Abstract

本文公开一种资源分配方法、设备和存储介质。该资源分配方法包括：根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；根据所述资源块数量为传输带分配频域资源。

Description

资源分配方法、设备和存储介质 技术领域
本申请涉及通信领域，例如涉及一种资源分配方法、设备和存储介质。
背景技术
第五代新空口(Fifth Generation New Radio，5G NR)上行支持单载波离散傅里叶变换扩频的正交频分复用(Discrete Fourier Transform spreading Orthogonal Frequency Division Multiplexing，DFT-s-OFDM)波形，该波形支持的参考信号包括：解调参考信号(DeModulation Reference Signal，DMRS)、相位跟踪参考信号(Phase Tracking Reference Signal，PTRS)等。参考信号所承载的参考信号序列包括：ZC(Zadoff-Chu)序列、π/2二进制相移键控(Binary Phase Shift Keying，BPSK)调制符号等。无线通信系统借助于参考信号估计信道的特性，有助于抵消信号的失真，改善通信系统的性能。
与无线通信系统相比，高频场景的传输特性发生了改变，比如，高频场景下的无线通信系统的频谱，调制编码和波形等方面发生了调整，以及新波形支持的参考信号以及参考信号所承载的参考信号序列也会进行调整，如格雷(Golay)序列等。因此，如何在高频场景下对频域资源进行分配，使得波形更加灵活，是一个亟待解决的问题。
发明内容
本申请提供一种资源分配方法、设备和存储介质，实现了在高频场景下对频域资源的分配。
本申请实施例提供一种资源分配方法，包括：
根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；根据所述资源块数量为传输带分配频域资源。
本申请实施例提供一种资源分配装置，包括：
确定模块，配置为根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；分配器，配置为根据所述资源块数量为传输带分配频域资源。
本申请实施例提供一种设备，包括：通信模块，存储器，以及一个或多个处理器；所述通信模块，配置为在至少两个通信节点之间进行通信交互；所述 存储器，配置为存储一个或多个程序；当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现上述任一实施例所述的资源分配方法。
本申请实施例提供一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现上述任一实施例所述的资源分配方法。
附图说明
图1是本申请实施例提供的一种资源分配方法的流程图；
图2是本申请实施例提供的一种频域资源的分配示意图；
图3是本申请实施例提供的另一种频域资源的分配示意图；
图4是本申请实施例提供的又一种频域资源的分配示意图；
图5是本申请实施例提供的再一种频域资源的分配示意图；
图6是本申请实施例提供的再一种频域资源的分配示意图；
图7是本申请实施例提供的再一种频域资源的分配示意图；
图8是本申请实施例提供的再一种频域资源的分配示意图；
图9是本申请实施例提供的一种时域资源的分配示意图；
图10是本申请实施例提供的一种资源分配装置的结构框图；
图11是本申请实施例提供的一种设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行说明。
图1是本申请实施例提供的一种资源分配方法的流程图。本实施例可以由终端侧(比如，用户设备)执行，也可以由网络侧(比如，基站)执行。如图1所示，本实施例包括：S110-S120。
S110、根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量。
S120、根据资源块数量为传输带分配频域资源。
在实施例中，在长期演进(Long Term Evolution，LTE)、5G NR通信系统中，用户资源分配，以及资源调度都是以资源块(Resource Block，RB)为单位，一个资源块包括12个连续的子载波，即每个资源块中包含的子载波数量为12。在实施例中，参考信号序列可以在传输带的时域资源上传输。在实施例中，传 输带可以为通信系统中信道带宽里的整个传输带，也可以为信道带宽里的子带。在实施例中，根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量，并按照资源块数量为传输带分配频域资源，可以方便物理传输资源的映射，用户可以灵活调度物理资源。在为传输带分配频域资源之后，可以将传输带分配的频域资源分配至用户，以使用户的数据在传输带所分配的频域资源内传输。在实施例中，参考信号序列的长度满足2的幂次方，或者，为其它整数。
在一实施例中，传输带包括：参考信号块和数据块；参考信号块和数据块分配有相同的资源块数量；参考信号序列在参考信号块或传输带的时域资源上传输；传输带为通信系统中信道带宽里的整个传输带，或者信道带宽里的子带。
在一实施例中，资源块数量的确定方式，还包括：
根据数据块的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量。在实施例中，一个数据块(或者正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号)的长度(即数据块中包含的调制符号个数)可以与参考信号序列的长度相同。在实施例中，也可以通过数据块的长度为传输带分配频域资源，便于物理传输资源的映射，以及用户灵活调度物理资源。
在一实施例中，数据块的长度包括：数据星座调制符号的长度和参考信号调制符号的长度；数据块的长度等于数据星座调制符号的长度与参考信号调制符号的长度的总和，其中，数据星座调制符号的长度小于或等于数据块的长度，且大于或等于零；参考信号调制符号的长度小于或等于数据块的长度，且大于或等于零。在实施例中，假设数据块的长度为N，数据星座调制符号的长度为M，以及参考信号调制符号的长度为S，则满足N＝M+S的关系，其中，0＝<M<＝N，0＝<S<＝N。在M＝0时，则N＝S，即数据块只包含有参考信号调制符号，也即数据块为参考信号块或参考信号OFDM符号。在S＝0时，则N＝M，即数据块只包含数据星座调制符号，不包含有参考信号调制符号。在M>0，且S>0时，即数据块除了包含数据星座调制符号之外，还插入有参考信号调制符号。
在一实施例中，资源块数量，满足下述公式：
Figure PCTCN2021079019-appb-000001
其中，
Figure PCTCN2021079019-appb-000002
为资源块数量，
Figure PCTCN2021079019-appb-000003
为每个资源块中包含的子载波数量，N为参考信号序列的长度，α为频域滤波操作滚降因子，0≤α≤1。
在一实施例中，传输带采用单载波类型波形调制。
在一实施例中，单载波类型波形调制包括：离散傅里叶变换(Discrete Fourier  Transform，DFT)操作或快速傅里叶变换(Fast Fourier Transform，FFT)操作。
在一实施例中，单载波类型波形调制包括：离散傅里叶变换扩频的正交频分复用(Discrete Fourier Transform spreading Orthogonal Frequency Division Multiplexing，DFT-s-OFDM)波形调制或单载波频分多址(Single Carrier–Frequency Division Multiple Access，SC-FDMA)波形调制。
在一实施例中，根据资源块数量为传输带分配频域资源，包括：
在资源块数量为整数的情况下，为传输带分配第一预设数量个子载波，第一预设数量为资源块数量和每个资源块中包含的子载波数量的乘积值。在实施例中，第一预设数量为
Figure PCTCN2021079019-appb-000004
在一实施例中，根据资源块数量为传输带分配频域资源，包括：
在资源块数量为非整数的情况下，为传输带分配第二预设数量个子载波，或第三预设数量个子载波；第二预设数量为资源块数量的向上取整值和每个资源块中包含的子载波数量的乘积值，第三预设数量为资源块数量的向下取整值和每个资源块中包含的子载波数量的乘积值。在实施例中，在资源块数量为非整数的情况下，可以为传输带分配第二预设数量
Figure PCTCN2021079019-appb-000005
(即资源块数量的向上取整值和每个资源块中包含的子载波数量的乘积值)个子载波，或，为传输带分配第三预设数量
Figure PCTCN2021079019-appb-000006
(资源块数量的向下取整值和每个资源块中包含的子载波数量的乘积值)个子载波。其中，
Figure PCTCN2021079019-appb-000007
为向上取整，
Figure PCTCN2021079019-appb-000008
为向下取整。
在一实施例中，在资源块数量为非整数的情况下，资源分配方法，还包括：
配置第一门限值，第一门限值用于判断对资源块数量执行向上取整或向下取整操作；第一门限值与数据星座调制符号的调制阶数有关。在实际的资源分配过程中，资源块数量可以为整数，也可以为非整数。在资源块数量为非整数的情况下，可以设置一个用于判断对资源块数量执行向上取整还是向下取整的第一门限值T，以灵活分配频域资源给用户。在实施例中，第一门限值与数据星座调制符号的调制阶数有关，即在数据星座调制符号的调制阶数比较高的情况下，用户干扰比较大，可以设置用于判断对资源块数量执行向上取整还是向下取整的第一门限值T大一点，资源块数量向上取整，保护子载波减少用户之间的干扰；在数据星座调制符号的调制阶数比较低的情况下，用户干扰比较小，可以设置用于判断对资源块数量执行向上取整还是向下取整的第一门限值T小一点，资源块数量向下取整，提高物理资源的利用率。
在一实施例中，在第四预设数量小于或等于第一门限值的情况下，为传输带分配第二预设数量个子载波；在第四预设数量大于第一门限值的情况下，为传输带分配第三预设数量个子载波；第四预设数量为资源块数量的向上取整值 与资源块数量之间的差值。在实施例中，第四预设数量为
Figure PCTCN2021079019-appb-000009
在
Figure PCTCN2021079019-appb-000010
的情况下，为传输带分配
Figure PCTCN2021079019-appb-000011
个子载波；在
Figure PCTCN2021079019-appb-000012
的情况下，为传输带分配
Figure PCTCN2021079019-appb-000013
个子载波。
在一实施例中，在为传输带分配第二预设数量个子载波，且第二预设数量个子载波的资源长度大于第一数值的情况下，将第二预设数量个子载波的资源长度大于第一数值的部分载波设置为保护子载波；第一数值为根据参考信号序列的长度和频域滤波操作滚降因子确定的数值。在实施例中，假设参考信号序列的长度为N，频域滤波操作滚降因子为α，则第一数值可以为N·(1+α)。在实施例中，在第二预设数量
Figure PCTCN2021079019-appb-000014
个子载波的资源长度大于N·(1+α)的情况下，将分配
Figure PCTCN2021079019-appb-000015
个子载波的资源长度大于N·(1+α)的部分或全部子载波设置为保护子载波，从而减少用户之间的干扰。
在一实施例中，在为传输带分配第三预设数量个子载波，且第三预设数量个子载波的资源长度小于第一数值的情况下，将传输带的频域中大于第三预设数量个子载波的资源长度去除，或置零。在实施例中，在第三预设数量
Figure PCTCN2021079019-appb-000016
个子载波的资源长度小于N·(1+α)的情况下，将传输带频域中大于分配
Figure PCTCN2021079019-appb-000017
个子载波的资源长度的那部分信号直接截掉，或者置零，从而提高物理资源的利用率，减少用户之间的干扰。
在一实施例中，在为传输带分配第三预设数量个子载波，且第三预设数量个子载波的资源长度小于第一数值的情况下，传输带在频域中的信号与相邻传输带的信号部分重叠。在实施例中，在分配第三预设数量
Figure PCTCN2021079019-appb-000018
个子载波的资源长度小于N·(1+α)的情况下，传输带在频域里的信号可以与相邻的其他传输带的信号有部分重叠的好处是提高物理资源的利用率，减少用户之间的干扰。
在一实现方式中，图2是本申请实施例提供的一种频域资源的分配示意图。如图2所示，假设参考信号序列的长度为N(N＝8)，频域滤波操作滚降因子为α＝0.5，可以通过
Figure PCTCN2021079019-appb-000019
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000020
为资源块数量，
Figure PCTCN2021079019-appb-000021
为每个资源块中包含的子载波数量。在实施例中，参考信号序列在传输带上传输。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000022
在实施例中，可计算得出资源块数量
Figure PCTCN2021079019-appb-000023
即
Figure PCTCN2021079019-appb-000024
为整数，为传输带分配
Figure PCTCN2021079019-appb-000025
个子载波。在传输带包含有参考信号块和数据块，为参考信号块和数据块分配相同资源块数量的资源块。
传输带的频域资源包括：
Figure PCTCN2021079019-appb-000026
个子载波和
Figure PCTCN2021079019-appb-000027
(比如，
Figure PCTCN2021079019-appb-000028
) 个OFDM符号，参考信号块占用第一个OFDM符号(在其他实施例中，参考信号块也可以占用其它OFDM符号)，数据块占用第2到第14个OFDM符号。将传输带分配的频域资源分配给用户，用户的数据在传输带分配的频域资源内传输。
在一实现方式中，图3是本申请实施例提供的另一种频域资源的分配示意图。如图3所示，假设参考信号序列的长度为N(N＝8)，频域滤波操作滚降因子为α＝0，通过
Figure PCTCN2021079019-appb-000029
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000030
为资源块数量，
Figure PCTCN2021079019-appb-000031
为每个资源块中包含的子载波数量。在实施例中，参考信号序列在传输带上传输。在资源块上包含频域上连续的12个载波，即
Figure PCTCN2021079019-appb-000032
在实施例中，可计算得出资源块数量
Figure PCTCN2021079019-appb-000033
即
Figure PCTCN2021079019-appb-000034
为非整数，假设设置判断资源块数量向上取整还是向下取整的第一门限值T为0.5，满足
Figure PCTCN2021079019-appb-000035
传输带分配
Figure PCTCN2021079019-appb-000036
个子载波。在实施例中，
Figure PCTCN2021079019-appb-000037
个子载波的资源长度大于N·(1+α)＝8，将分配
Figure PCTCN2021079019-appb-000038
个子载波的资源长度大于N·(1+α)的那部分子载波设置为保护子载波，即参考信号块和数据块占用传输带分配的频域资源的第2子载波至第9子载波，传输带分配的频域资源左边缘的第0子载波、第1子载波设置为保护子载波，传输带分配的频域资源右边缘的第10子载波、第11子载波设置为保护子载波。在传输带的频域资源包括：
Figure PCTCN2021079019-appb-000039
个OFDM符号，参考信号块占用第一个OFDM符号，数据块占用第2到第14个OFDM符号。
在一实现方式中，图4是本申请实施例提供的又一种频域资源的分配示意图。如图4所示，假设参考信号序列的长度为N(N＝16)，频域滤波器滚降因子为α＝1/3，通过
Figure PCTCN2021079019-appb-000040
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000041
为资源块数量，
Figure PCTCN2021079019-appb-000042
为每个资源块中包含的子载波数量。在实施例中，参考信号序列可以在传输带上传输。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000043
在实施例中，可计算得出资源块数量
Figure PCTCN2021079019-appb-000044
即
Figure PCTCN2021079019-appb-000045
为非整数，设置判断资源块数量向上取整还是向下取整的第一门限值T为1/3，满足
Figure PCTCN2021079019-appb-000046
传输带分配
Figure PCTCN2021079019-appb-000047
个子载波。在实施例中，
Figure PCTCN2021079019-appb-000048
个子载波的资源长度大于N·(1+α)＝64/3，将分配
Figure PCTCN2021079019-appb-000049
个子载波的资源长度大于N·(1+α)的那部分子载波设置为保护子载波，即参考信号块和数据块占用传输带分配的频域资源的第1子载波至第22子载波，传输 带分配的频域资源左边缘的第0子载波设置为保护子载波，传输带分配的频域资源右边缘的第23子载波设置为保护子载波。在传输带的频域资源包括：
Figure PCTCN2021079019-appb-000050
个OFDM符号，参考信号块占用第一个OFDM符号，数据块占用第2到第14个OFDM符号。在实施例中，为了保证相邻用户所受到的干扰相同，可将设置为保护子载波的频域资源的子载波是对称的。
在一实现方式中，图5是本申请实施例提供的再一种频域资源的分配示意图。如图5所示，假设参考信号序列的长度为N(N＝8)，频域滤波器滚降因子为α＝1，通过
Figure PCTCN2021079019-appb-000051
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000052
为资源块数量，
Figure PCTCN2021079019-appb-000053
为每个资源块中包含的子载波数量。在实施例中，参考信号序列在传输带上传输。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000054
在实施例中，资源块数量
Figure PCTCN2021079019-appb-000055
即
Figure PCTCN2021079019-appb-000056
为非整数。在实施例中，数据星座调制符号的调制阶数为正交相移键控(Quadrature Phase Shift Keying，QPSK)，设置判断资源块数量向上取整还是向下取整的第一门限值T(T＝0.1)的数值偏小，满足
Figure PCTCN2021079019-appb-000057
传输带分配
Figure PCTCN2021079019-appb-000058
个子载波。在实施例中，
Figure PCTCN2021079019-appb-000059
个子载波的资源长度小于N·(1+α)，将传输带频域里大于分配
Figure PCTCN2021079019-appb-000060
个子载波的资源长度的那部分信号直接截掉(即，与置零效果相同)。在传输带的频域资源包括：
Figure PCTCN2021079019-appb-000061
个OFDM符号，参考信号块占用第14个OFDM符号，数据块占用第1到第13个OFDM符号。
在一实现方式中，图6是本申请实施例提供的再一种频域资源的分配示意图。如图6所示，假设参考信号序列的长度为N(N＝8)，频域滤波器滚降因子为α＝1，通过
Figure PCTCN2021079019-appb-000062
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000063
为资源块数量，
Figure PCTCN2021079019-appb-000064
为每个资源块中包含的子载波数量。在实施例中，参考信号序列在传输带上传输。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000065
在实施例中，可以计算得出资源块的数目
Figure PCTCN2021079019-appb-000066
即
Figure PCTCN2021079019-appb-000067
为非整数。在实施例中，数据星座调制符号的调制阶数为1024正交幅度调制(Quadrature Amplitude Modulation，QAM)，设置判断资源块数目向上取整还是向下取整的第一门限值T(T＝0.9)的数值偏大，满足
Figure PCTCN2021079019-appb-000068
所传输带分配
Figure PCTCN2021079019-appb-000069
个子载波。在实施例中，
Figure PCTCN2021079019-appb-000070
个子载波的资源长度大于N·(1+α)，将分配
Figure PCTCN2021079019-appb-000071
个子载波的资源长度大于N·(1+α)的那部分 子载波设置为保护子载波，即参考信号块和数据块占用传输带分配的频域资源的第4子载波至第19子载波，传输带分配的频域资源左边缘的第0子载波至第3子载波设置为保护子载波，传输带分配的频域资源右边缘的第20子载波至第23子载波设置为保护子载波。在传输带的频域资源包括：
Figure PCTCN2021079019-appb-000072
个OFDM符号，参考信号块占用第14个OFDM符号，数据块占用第1到第13个OFDM符号。
在一实现方式中，图7是本申请实施例提供的再一种频域资源的分配示意图。如图7所示，假设参考信号序列的长度为N(N＝8)，频域滤波器滚降因子为α＝1，通过
Figure PCTCN2021079019-appb-000073
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000074
为资源块数量，
Figure PCTCN2021079019-appb-000075
为每个资源块中包含的子载波数量。在实施例中，参考信号序列在传输带上传输。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000076
在实施例中，可以计算得出资源块数量
Figure PCTCN2021079019-appb-000077
即
Figure PCTCN2021079019-appb-000078
为非整数。在实施例中，设置判断资源块数量向上取整还是向下取整的第一门限值T为0.5，满足
Figure PCTCN2021079019-appb-000079
传输带分配
Figure PCTCN2021079019-appb-000080
个子载波。
Figure PCTCN2021079019-appb-000081
个子载波的资源长度小于N·(1+α)，传输带在频域里的信号与相邻的其他传输的信号有部分重叠。在传输带的频域资源包括：
Figure PCTCN2021079019-appb-000082
个OFDM符号，参考信号块占用第一个OFDM符号，数据块占用第2到第14个OFDM符号。
在一实现方式中，图8是本申请实施例提供的再一种频域资源的分配示意图。如图8所示，假设参考信号序列的长度为N(N＝8)，一个数据块(或OFDM符号)的长度与参考信号序列的长度N相同，频域滤波器滚降因子为α＝0，通过数据块的长度N分配频域资源，即通过
Figure PCTCN2021079019-appb-000083
为传输带分配频域资源。
Figure PCTCN2021079019-appb-000084
为资源块数量，
Figure PCTCN2021079019-appb-000085
为每个资源块中包含的子载波数量。参考信号序列在传输带上传输，为参考信号块和数据块分配相同的资源块数量。在资源块上包含频域上连续的12个子载波，即
Figure PCTCN2021079019-appb-000086
在实施例中，可以计算得出资源块数量
Figure PCTCN2021079019-appb-000087
即
Figure PCTCN2021079019-appb-000088
为非整数。在实施例中，设置判断资源块数目向上取整还是向下取整的第一门限值T为0.5，满足
Figure PCTCN2021079019-appb-000089
传输带分配
Figure PCTCN2021079019-appb-000090
个子载波。
在实施例中，一个长度为N的数据块包括一个长度为M的数据星座调制符号和一个长度为S的参考信号调制符号，满足N＝M+S的关系，在实施例中， M>0且S>0，即数据块除了包含数据星座调制符号之外，还插入有参考信号调制符号。
在实施例中，传输带分配的频域资源包含
Figure PCTCN2021079019-appb-000091
个子载波和
Figure PCTCN2021079019-appb-000092
个OFDM符号。
图9是本申请实施例提供的一种时域资源的分配示意图。如图9所示，第1个OFDM符号配置参考信号块，第2个至第15个OFDM符号配置数据块，数据块中所述参考信号调制符号与参考信号块相同，即数据块的首部插入序列来自参考信号块的首部部分，且所占用资源大小相同，以及所包含内容相同；数据块的尾部插入序列来自参考信号块的尾部部分，且所占用资源大小相同，以及所包含内容相同。如图8所示，
Figure PCTCN2021079019-appb-000093
个子载波的资源长度大于N·(1+α)，将分配
Figure PCTCN2021079019-appb-000094
个子载波的资源长度大于N·(1+α)的那部分子载波设置为保护子载波，即参考信号块和数据块占用传输带分配的频域资源的第2子载波至第9子载波，传输带分配的频域资源左边缘的第0子载波、第1子载波设置为保护子载波，传输带分配的频域资源右边缘的第10子载波、第11子载波设置为保护子载波。
在一实施例中，图10是本申请实施例提供的一种资源分配装置的结构框图。如图10所示，本实施例包括：确定模块210和分配器220。
确定模块210，配置为根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；分配器220，配置为根据资源块数量为传输带分配频域资源。
本实施例提供的资源分配装置设置为实现图1所示实施例的资源分配方法，本实施例提供的资源分配装置实现原理和技术效果类似，此处不再赘述。
在一实施例中，传输带包括：参考信号块和数据块；参考信号块和数据块分配相同的资源块数量；参考信号序列在参考信号块或传输带的时域资源上传输；传输带为通信系统中信道带宽里的整个传输带，或者信道带宽里的子带。
在一实施例中，资源块数量的确定方式，还包括：
根据数据块的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量。
在一实施例中，数据块的长度包括：数据星座调制符号的长度和参考信号调制符号的长度；数据块的长度等于数据星座调制符号的长度与参考信号调制符号的长度的总和，其中，数据星座调制符号的长度小于或等于数据块的长度，且大于或等于零；参考信号调制符号的长度小于或等于数据块的长度，且大于 或等于零。
在一实施例中，资源块数量，满足下述公式：
Figure PCTCN2021079019-appb-000095
其中，
Figure PCTCN2021079019-appb-000096
为资源块数量，
Figure PCTCN2021079019-appb-000097
为每个资源块中包含的子载波数量，N为参考信号序列的长度，α为频域滤波操作滚降因子，0≤α≤1。
在一实施例中，传输带采用单载波类型波形调制。
在一实施例中，单载波类型波形调制包括：DFT操作或FFT操作。
在一实施例中，单载波类型波形调制包括：DFT-s-OFDM波形调制或SC-FDMA波形调制。
在一实施例中，根据资源块数量为传输带分配频域资源，包括：
在资源块数量为整数的情况下，为传输带分配第一预设数量个子载波，第一预设数量为资源块数量和每个资源块中包含的子载波数量的乘积值。
在一实施例中，根据资源块数量为传输带分配频域资源，包括：
在资源块数量为非整数的情况下，为传输带分配第二预设数量个子载波，或第三预设数量个子载波；第二预设数量为资源块数量的向上取整值和每个资源块中包含的子载波数量的乘积值，第三预设数量为资源块数量的向下取整值和每个资源块中包含的子载波数量的乘积值。
在一实施例中，在资源块数量为非整数的情况下，资源分配装置，还包括：
配置器，配置为配置第一门限值，第一门限值用于判断对资源块数量执行向上取整或向下取整操作；第一门限值与数据星座调制符号的调制阶数有关。
在一实施例中，在第四预设数量小于或等于第一门限值的情况下，为传输带分配第二预设数量个子载波；在第四预设数量大于第一门限值的情况下，为传输带分配第三预设数量个子载波；第四预设数量为资源块数量的向上取整值与资源块数量之间的差值。
在一实施例中，在为传输带分配第二预设数量个子载波，且第二预设数量个子载波的资源长度大于第一数值的情况下，将第二预设数量个子载波的资源长度大于第一数值部分的载波设置为保护子载波；第一数值为根据参考信号序列长度和频域滤波操作滚降因子确定的数值。
在一实施例中，在为传输带分配第三预设数量个子载波，且第三预设数量个子载波的资源长度小于第一数值的情况下，将传输带的频域中大于第三预设数量个子载波的资源长度去除，或置零。
在一实施例中，在为传输带分配第三预设数量个子载波，且第三预设数量个子载波的资源长度小于第一数值的情况下，传输带在频域中的信号与相邻传输带的信号部分重叠。
图11是本申请实施例提供的一种设备的结构示意图。如图11所示，本申请提供的设备，包括：处理器310、存储器320和通信模块330。该设备中处理器310的数量可以是一个或者多个，图11中以一个处理器310为例。该设备中存储器320的数量可以是一个或者多个，图11中以一个存储器320为例。该设备的处理器310、存储器320和通信模块330可以通过总线或者其他方式连接，图11中以通过总线连接为例。在该实施例中，该设备为可以为用户端侧(比如，用户设备)，也可以为网络侧(比如，基站)等。
存储器320作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请任意实施例的设备对应的程序指令/模块(例如，资源分配装置中的确定模块210和分配器220)。存储器320可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储器320可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器320可包括相对于处理器310远程设置的存储器，这些远程存储器可以通过网络连接至设备。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。
通信模块330，配置为用于与其它同步节点进行通信交互。
上述提供的设备可设置为执行上述任意实施例提供的资源分配方法，具备相应的功能和效果。
本申请实施例还提供一种包含计算机可执行指令的存储介质，计算机可执行指令在由计算机处理器执行时用于执行一种资源分配方法，该方法包括：根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；根据资源块数量为传输带分配频域资源。
术语用户设备涵盖任何适合类型的无线用户设备，例如移动电话、便携数据处理装置、便携网络浏览器或车载移动台。
一般来说，本申请的多种实施例可以在硬件或专用电路、软件、逻辑或其任何组合中实现。例如，一些方面可以被实现在硬件中，而其它方面可以被实现在可以被控制器、微处理器或其它计算装置执行的固件或软件中，尽管本申请不限于此。
本申请的实施例可以通过移动装置的数据处理器执行计算机程序指令来实现，例如在处理器实体中，或者通过硬件，或者通过软件和硬件的组合。计算机程序指令可以是汇编指令、指令集架构(Instruction Set Architecture，ISA)指令、机器指令、机器相关指令、微代码、固件指令、状态设置数据、或者以一种或多种编程语言的任意组合编写的源代码或目标代码。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(Read-Only Memory，ROM)、随机访问存储器(Random Access Memory，RAM)、光存储器装置和系统(数码多功能光碟(Digital Video Disc，DVD)或光盘(Compact Disk，CD))等。计算机可读介质可以包括非瞬时性存储介质。数据处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(Digital Signal Processing，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、可编程逻辑器件(Field-Programmable Gate Array，FPGA)以及基于多核处理器架构的处理器。

Claims (17)

  1. 一种资源分配方法，包括：
    根据参考信号序列的长度、频域滤波操作滚降因子和每个资源块中包含的子载波数量确定资源块数量；
    根据所述资源块数量为传输带分配频域资源。
  2. 根据权利要求1所述的方法，其中，所述传输带包括：参考信号块和数据块；所述参考信号块和所述数据块分配有相同的资源块数量；所述参考信号序列在所述参考信号块或所述传输带的时域资源上传输；所述传输带为通信系统中信道带宽里的整个传输带，或者信道带宽里的子带。
  3. 根据权利要求2所述的方法，其中，所述资源块数量的确定方式，还包括：
    根据所述数据块的长度、所述频域滤波操作滚降因子和所述每个资源块中包含的子载波数量确定所述资源块数量。
  4. 根据权利要求2或3所述的方法，其中，所述数据块的长度包括：数据星座调制符号的长度和参考信号调制符号的长度；
    所述数据块的长度等于所述数据星座调制符号的长度与所述参考信号调制符号的长度的总和，其中，所述数据星座调制符号的长度小于或等于所述数据块的长度，且大于或等于零；所述参考信号调制符号的长度小于或等于所述数据块的长度，且大于或等于零。
  5. 根据权利要求1所述的方法，其中，所述资源块数量，满足下述公式：
    Figure PCTCN2021079019-appb-100001
    其中，
    Figure PCTCN2021079019-appb-100002
    为所述资源块数量，
    Figure PCTCN2021079019-appb-100003
    为所述每个资源块中包含的子载波数量，N为所述参考信号序列的长度，α为所述频域滤波操作滚降因子，0≤α≤1。
  6. 根据权利要求1所述的方法，其中，所述传输带采用单载波类型波形调制。
  7. 根据权利要求6所述的方法，其中，所述单载波类型波形调制包括：离散傅里叶变换DFT操作或快速傅里叶变换FFT操作。
  8. 根据权利要求6所述的方法，其中，所述单载波类型波形调制包括：离散傅里叶变换扩频的正交频分复用DFT-s-OFDM波形调制或单载波频分多址SC-FDMA波形调制。
  9. 根据权利要求1所述的方法，其中，所述根据所述资源块数量为传输带分配频域资源，包括：
    在所述资源块数量为整数的情况下，为所述传输带分配第一预设数量个子载波，所述第一预设数量为所述资源块数量和所述每个资源块中包含的子载波数量的乘积值。
  10. 根据权利要求1所述的方法，其中，所述根据所述资源块数量为传输带分配频域资源，包括：
    在所述资源块数量为非整数的情况下，为所述传输带分配第二预设数量个子载波，或第三预设数量个子载波；所述第二预设数量为所述资源块数量的向上取整值和所述每个资源块中包含的子载波数量的乘积值，所述第三预设数量为所述资源块数量的向下取整值和所述每个资源块中包含的子载波数量的乘积值。
  11. 根据权利要求10所述的方法，在所述资源块数量为非整数的情况下，还包括：
    配置第一门限值，所述第一门限值用于判断对所述资源块数量执行向上取整或向下取整操作；所述第一门限值与数据星座调制符号的调制阶数有关。
  12. 根据权利要求11所述的方法，还包括：
    在第四预设数量小于或等于所述第一门限值的情况下，为所述传输带分配所述第二预设数量个子载波；
    在所述第四预设数量大于所述第一门限值的情况下，为所述传输带分配所述第三预设数量个子载波；
    所述第四预设数量为所述资源块数量的向上取整值与所述资源块数量之间的差值。
  13. 根据权利要求10所述的方法，还包括：
    在为所述传输带分配所述第二预设数量个子载波，且所述第二预设数量个子载波的资源长度大于第一数值的情况下，将所述第二预设数量个子载波的资源长度大于所述第一数值的部分载波设置为保护子载波；所述第一数值为根据所述参考信号序列长度和所述频域滤波操作滚降因子确定的数值。
  14. 根据权利要求10所述的方法，还包括：
    在为所述传输带分配所述第三预设数量个子载波，且所述第三预设数量个子载波的资源长度小于第一数值的情况下，将所述传输带的频域中大于所述第三预设数量个子载波的资源长度去除，或置零；所述第一数值为根据所述参考信号序列长度和所述频域滤波操作滚降因子确定的数值。
  15. 根据权利要求10所述的方法，其中，在为所述传输带分配所述第三预 设数量个子载波，且所述第三预设数量个子载波的资源长度小于第一数值的情况下，所述传输带在频域中的信号与相邻传输带的信号部分重叠；所述第一数值为根据所述参考信号序列长度和所述频域滤波操作滚降因子确定的数值。
  16. 一种设备，包括：通信模块，存储器，以及至少一个处理器；
    所述通信模块，配置为在至少两个通信节点之间进行通信交互；
    所述存储器，配置为存储至少一个程序；
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-15中任一项所述的资源分配方法。
  17. 一种存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1-15中任一项所述的资源分配方法。
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