WO2022206598A1 - 频域资源确定方法、装置、节点和存储介质 - Google Patents

频域资源确定方法、装置、节点和存储介质 Download PDF

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Publication number
WO2022206598A1
WO2022206598A1 PCT/CN2022/083035 CN2022083035W WO2022206598A1 WO 2022206598 A1 WO2022206598 A1 WO 2022206598A1 CN 2022083035 W CN2022083035 W CN 2022083035W WO 2022206598 A1 WO2022206598 A1 WO 2022206598A1
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Prior art keywords
carrier
node
resource
frequency domain
configuration information
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PCT/CN2022/083035
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English (en)
French (fr)
Inventor
苗婷
邢卫民
毕峰
卢有雄
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中兴通讯股份有限公司
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Priority to KR1020237037543A priority Critical patent/KR20230165809A/ko
Priority to EP22778780.1A priority patent/EP4319075A1/en
Priority to US18/552,925 priority patent/US20240171440A1/en
Publication of WO2022206598A1 publication Critical patent/WO2022206598A1/zh

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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
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
    • 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
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points

Definitions

  • the present application relates to the field of wireless communication technologies, and in particular, to a method, apparatus, node and storage medium for determining frequency domain resources.
  • the new generation mobile communication system allows more flexible network networking methods and the existence of new types of network nodes than 2G, 3G, and 4G systems.
  • a new type of node that integrates the backhaul link and the normal NR access link namely the IAB node (Integrated Access and Backhaul Node)
  • IAB node Integrated Access and Backhaul Node
  • the IAB network can support multi-hop, and the IAB node includes two types of logical entities: a mobile terminal (MT, Mobile-Termination) and a distributed unit (Distributed Unit, DU).
  • the IAB node accesses the parent node (such as the IAB node or the donor IAB) through the MT (or IAB-MT) to realize wireless backhaul, and uses the DU (or IAB-DU) as the child node or user equipment (User Equipment, UE). )Provide services.
  • IAB-MT and IAB-DU can transmit data by time division multiplexing, or receive data simultaneously by frequency division multiplexing or space division multiplexing (or called non-time division multiplexing).
  • the embodiments of the present application provide a frequency domain resource determination method, device, node, and storage medium.
  • An embodiment of the present application provides a method for determining frequency domain resources, which is applied to a first node.
  • the method includes: the first node acquires first carrier resource configuration information sent by a control node; the first node determines according to the first carrier resource configuration information the first reference carrier of the cell of the DU of the first node; the first node determines at least one frequency domain resource set of the cell of the DU of the first node based on the first reference carrier; wherein the first reference carrier includes: a first start The resource block and N resource blocks starting from the first initial resource block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • An embodiment of the present application provides a method for determining frequency domain resources, which is applied to a control node.
  • the method includes: the control node sends first carrier resource configuration information to a first node; the first carrier resource configuration information is used to determine the first node's The first reference carrier of the cell of the DU, the first reference carrier is used to determine at least one frequency domain resource set of the cell of the DU of the first node; wherein, the first reference carrier includes: a first initial resource block and a resource from the first initial resource N resource blocks at the beginning of the block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • An embodiment of the present application provides an apparatus for determining frequency domain resources.
  • the apparatus includes: an acquisition module configured to acquire first carrier resource configuration information sent by a control node; and a determination module configured to determine based on the first carrier resource configuration information the first reference carrier of the cell of the DU of the above-mentioned device; the determining module is further configured to determine at least one frequency domain resource set of the cell of the DU of the above-mentioned device according to the first reference carrier; wherein, the first reference carrier includes: a first start The resource block and N resource blocks starting from the first initial resource block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • An embodiment of the present application provides an apparatus for determining frequency domain resources.
  • the apparatus includes: a sending module configured to send first carrier resource configuration information to a first node; the first carrier resource configuration information is used to determine a DU of the first node
  • the first reference carrier of the cell of For the first N resource blocks, N is configured in the first carrier resource configuration information, or N is predefined.
  • An embodiment of the present application provides a communication node, including: a processor, when the processor executes a computer program, the processor implements the frequency domain resource determination method provided by the embodiment of the present application.
  • Embodiments of the present application provide a readable and writable storage medium, where a computer program is stored in the readable and writable storage medium, and when the computer program is executed by a processor, the method for determining frequency domain resources provided by the embodiments of the present application is implemented.
  • FIG. 1 is a schematic diagram of a carrier with a specific 60 kHz subcarrier spacing and a carrier with a specific 120 kHz subcarrier spacing corresponding to a carrier with a channel bandwidth of 50 MHz provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a carrier with a specific 60 kHz subcarrier spacing and a carrier with a specific 120 kHz subcarrier spacing corresponding to a carrier with a channel bandwidth of 200 MHz provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for determining a frequency domain resource provided by an embodiment of the present application.
  • FIG. 4 is a flowchart of another frequency domain resource determination method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of resource attribute configuration of a cell carrier provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of still another frequency domain resource determination method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an apparatus for determining a frequency domain resource provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another apparatus for determining a frequency domain resource provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of still another frequency domain resource determining apparatus provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of another apparatus for determining a frequency domain resource provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a communication node provided by an embodiment of the present application.
  • words such as “optionally” or “exemplarily” are used to represent examples, illustrations, or illustrations. Any embodiment or design described in the embodiments of the present application as “optionally” or “exemplarily” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “optionally” or “exemplarily” is intended to present the related concepts in a specific manner.
  • a donor IAB (IAB Donor) is usually connected (for example, wired connection) to the core network, and it usually includes a centralized unit (Central Unit, CU) and one or more distributed units (Distributed Unit, DU).
  • the CU is logically connected to the DU of each hop IAB node, and coordinates and configures the resources of each hop IAB node.
  • the frequency domain resource set configuration is used to configure the frequency domain resource set of the IAB-DU cell.
  • the IAB-DU reports the Served Cell Information (Served Cell Information) to the CU, and provides the carrier configuration of each cell.
  • a cell supports at least one subcarrier interval, and one subcarrier interval corresponds to a specific carrier (SCS) with a subcarrier interval.
  • SCS specific carrier
  • -specific carriers one for each Time Division Duplexing (TDD), each Downlink (DL), each Uplink (UL), or each Supplementary Uplink (SUL) of the cell
  • TDD Time Division Duplexing
  • DL Downlink
  • UL Uplink
  • SUL Supplementary Uplink
  • the carrier configuration of the cell, the carrier configuration of the cell includes at least one of the following: frequency information (FreqInfo), transmission bandwidth (Transmission Bandwidth), and carrier list (Carrier List).
  • the frequency information includes at least one of the following: the frequency position of the reference point A, the working frequency band, and whether the frequency is offset by 7.5 kHz.
  • the carrier list contains at least one subcarrier spacing-specific carrier.
  • the carriers in the carrier list belong to the same working frequency band and are configured relative to the same absolute frequency (subcarrier 0 of the general RB0, that is, reference point A).
  • the absolute frequency is usually indicated by (Absolute Radio Frequency Channel Number, ARFCN).
  • the configuration parameters of the carrier include at least one of the following: the subcarrier spacing of the carrier, the frequency offset between the lowest frequency of the carrier and the reference point A, and the bandwidth of the carrier.
  • Figure 1 shows a carrier with a channel bandwidth of 50MHz corresponding to a 60kHz subcarrier spaced specific carrier (carrier bandwidth of 66 RBs) and a 120kHz subcarrier spaced specific carrier (carrier bandwidth of 32 RBs);
  • Figure 2 shows a channel bandwidth of 200MHz
  • the carrier corresponds to a 60kHz subcarrier spacing-specific carrier (carrier bandwidth 264 RBs) and a 120kHz subcarrier spacing-specific carrier (carrier bandwidth 132 RBs).
  • the specific carrier with different subcarrier spacing needs to meet the minimum guard band requirement and nesting structure, where the minimum guard band requirement is predefined, and the nesting structure means that the RBs of different subcarrier spacing are aligned, for example, for 60kHz and 120kHz subcarriers
  • the spacing, nested structure refers to the alignment of one RB with a subcarrier spacing of 120 kHz and 2 RBs with a subcarrier spacing of 60 kHz.
  • the control node can obtain the carrier information of the IAB-DU cell according to the information of the served cell reported by the IAB-DU.
  • FIG. 3 is a flowchart of a method for determining frequency domain resources provided by an embodiment of the present application. As shown in FIG. 3 , the method may include but is not limited to the following steps:
  • the first node acquires the first carrier resource configuration information sent by the control node.
  • the control node may be a CU in the network
  • the first carrier resource configuration information sent by the control node is Resource configuration information of the first node.
  • the methods provided in the embodiments of the present application may also be applied to other types of wireless communication devices such as base stations.
  • the first node determines, according to the first carrier resource configuration information, the first reference carrier of the cell of the DU of the first node.
  • the first reference carrier determined in the embodiments of the present application may include a first initial resource block and N resource blocks starting from the first initial resource block, where N may be configured in the first carrier resource configuration information , or, N is predefined.
  • the first node determines at least one frequency domain resource set of the cell of the DU of the first node based on the first reference carrier.
  • the frequency domain resource set is configured based on the first reference carrier.
  • the starting resource block (or starting resource unit) of the frequency domain resource set may be configured relative to the starting resource block (or starting resource unit) of the first reference carrier. ) offset, and the number of resource blocks (or the number of resource units, that is, the bandwidth of the frequency domain resource set) included in the frequency domain resource set can be configured or predefined, then the first node after determining the first reference carrier, can The frequency position of the first reference carrier is determined, so that at least one frequency domain resource set of the cell of the DU of the first node can be further determined according to the positional relationship between the frequency resource set and the first reference carrier.
  • An embodiment of the present application provides a method for determining frequency domain resources.
  • the method includes: a first node acquires first carrier resource configuration information sent by a control node; and the first node determines a DU of the first node according to the first carrier resource configuration information the first reference carrier of the cell; the first node determines at least one frequency domain resource set of the cell of the DU of the first node based on the first reference carrier; wherein the first reference carrier includes: a first initial resource block and a first resource block from the first initial resource N resource blocks at the beginning of the block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • the first carrier resource configuration information sent by the control node may include at least one of the following: subcarrier spacing, and a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, the frequency domain resource set includes one or more resource units, and the configuration parameters of the frequency domain resource set may include at least one of the following: a frequency domain resource set index, a frequency domain resource set The starting resource unit of the set, the number of consecutive resource units.
  • the subcarrier spacing-specific carriers SCS-specific carriers
  • the carrier list of the cell of the DU includes 60 kHz subcarrier spacing specific carriers and 120 kHz subcarrier spacing specific carriers.
  • the frequency domain resource set is configured based on a carrier specific to the 60 kHz subcarrier spacing; if the subcarrier spacing in the first carrier resource configuration information is configured to be 120 kHz, then The frequency domain resource set is configured based on a carrier specific to the 120 kHz subcarrier spacing.
  • the manner of configuring the above frequency domain resource set may include the following different manners, for example:
  • the frequency domain resource set is indicated by a resource indication value (Resource indication value, RIV).
  • RIV resource indication value
  • One frequency domain resource set is composed of at least one resource element, and one RIV may indicate the initial resource element and the number of consecutive resource elements of one frequency domain resource set.
  • mod is the modulo (or remainder) operation
  • CU() represents the round-up operation
  • floor() represents the round-down operation
  • m can be understood as the index of the frequency domain resource set
  • the above carrier can be understood as the frequency domain resource set
  • the carrier on which the configuration is based ie, the reference carrier
  • the above method is only an example, and other methods can also be used to calculate and determine.
  • Mode 3 Indicate the start resource unit index and the end resource unit index of the frequency domain resource set.
  • the frequency domain resource set consists of resource units between the start resource unit and the end resource unit.
  • the resource units may be numbered in ascending order of frequency. For example, the resource element of the lowest frequency of the carrier is numbered 0, the next lowest resource element is numbered 1, and so on.
  • the starting resource element of the frequency domain resource set is defined relative to the first resource element of the reference carrier, that is, the starting resource element of the frequency domain resource set determined in the above manner is the offset, according to the starting resource element of the reference carrier.
  • the offset of the initial resource unit relative to the reference point (referred to as offset), the offset of the initial resource unit of the frequency domain resource set relative to the reference point A can be known. Therefore, the first node can know the starting frequency position of the frequency domain resource set according to the frequency position of the reference carrier and the configuration of the frequency domain resource set, and then can know the frequency domain resource set according to the number of resource units included in the frequency domain resource set. frequency location.
  • the starting resource unit of the frequency domain resource set is the resource unit S of the reference carrier (ie, the S+1th resource unit), and the offset of the starting resource unit of the reference carrier relative to the reference point is offset, then the frequency domain resource The offset of the starting resource unit of the set relative to the reference point is offset+S resource units. Then, according to the number of resource units included in the frequency domain resource set, the frequency position of the frequency domain resource set can be known.
  • the above-mentioned resource unit may be a resource block (Resource Block, RB), or a physical resource block, or an RB group, or a physical resource block group, or may also be a precoding resource block group (Precoding resource block group, PRG).
  • RB resource block
  • Precoding resource block group PRG
  • the number of resource blocks included in the RB group or PRG can be configured, or predefined, or related to the bandwidth of the reference carrier.
  • One RB includes 12 subcarriers in the frequency domain, that is, the bandwidth of the RB is 12 times the subcarrier spacing.
  • the above-determined set of frequency domain resources may be indexed in order from low frequency to high frequency of the reference carrier.
  • an implementation manner of determining the first reference carrier according to the subcarrier spacing in the first carrier configuration information may include:
  • the first node determines, as the first reference carrier, a carrier whose subcarrier spacing is equal to the subcarrier spacing in the first carrier resource configuration information in the carrier list of the cell of the first node's DU;
  • the first node determines the carrier in the carrier list of the cell of the DU of the first node corresponding to the subcarrier interval in the first carrier resource configuration information as the first reference carrier;
  • the first node determines the starting resource block of the carrier whose subcarrier spacing of the carrier in the carrier list of the cell of the DU of the first node is equal to the subcarrier spacing in the first carrier resource configuration information as the first starting resource block;
  • the first node determines the starting resource block of the carrier in the carrier list of the cell of the DU of the first node corresponding to the subcarrier interval in the first carrier resource configuration information as the first starting resource block.
  • the first node when the first node configures the frequency domain resource set based on a carrier with a specific subcarrier interval, it may be assumed that the starting frequency position of the carrier is unchanged, and the bandwidth of the carrier is a fixed value, such as 275 RBs.
  • the first node may determine a carrier with a specific subcarrier spacing corresponding to the subcarrier spacing according to the subcarrier spacing in the first carrier resource configuration information, and determine the frequency domain resource set according to the frequency domain resource set configuration of the carrier based on the specific subcarrier spacing. (frequency domain location). For example, if the subcarrier spacing in the first carrier resource configuration information sent by the control node to the first node is 120 kHz, the frequency domain resource set is configured based on a carrier with a specific 120 kHz subcarrier spacing.
  • the first carrier resource configuration information may include at least one of the following: a frequency domain resource set list.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the first carrier resource configuration information sent by the control node may include at least one of the following: a first reference carrier configuration, and a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: a frequency domain resource set index, a starting resource unit of the frequency domain resource set, and the number of consecutive resource units.
  • the frequency domain resource set may be configured based on the first reference carrier, and the configuration mode may adopt any one of the above-mentioned mode 1, mode 2, and mode 3. Of course, other modes may also be used to indicate the resource units included in the frequency domain resource set.
  • frequency domain resource set 0 starts from resource unit 0 of the reference carrier and consists of a total of 132 resource units; frequency domain resource set 1 starts from resource unit 132 of the reference carrier and has a total of 132 resource units.
  • Resource unit composition For example, for a channel bandwidth of 200MHz and a subcarrier interval of 60kHz, frequency domain resource set 0 starts from resource unit 0 of the reference carrier and consists of a total of 132 resource units; frequency domain resource set 1 starts from resource unit 132 of the reference carrier and has a total of 132 resource units.
  • the first node may also send the first reference carrier configuration of the cell of the DU of the first node to the control node.
  • the first reference carrier configuration may include at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, and the frequency band corresponding to the reference carrier , the frequency position of the reference point.
  • the bandwidth of the reference carrier may be predefined.
  • the frequency band corresponding to the reference carrier may be a working frequency band in the carrier configuration of the cell of the DU of the first node.
  • the frequency location of the reference point may be the absolute frequency ARFCN (or the frequency location of the reference point) in the carrier configuration of the cell of the DU of the first node.
  • the first node may assume that the frequency location of the reference point corresponding to the reference carrier is the same as the first reference carrier.
  • the frequency location of the reference point corresponding to the cell carrier of the DU of the node is the same, or the first node may assume that the frequency location of the reference point corresponding to the reference carrier is the same as the frequency location of the reference point in the carrier configuration of the cell of the DU of the first node.
  • the first node may assume that the operating frequency band corresponding to the reference carrier is the same as the first node's operating frequency band.
  • the working frequency band corresponding to the cell carrier of the DU is the same, or the first node may assume that the working frequency band corresponding to the reference carrier is the same as the working frequency band in the carrier configuration of the cell of the DU of the first node.
  • the first carrier resource configuration information may include a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set.
  • the configuration parameters of the frequency domain resource set include at least one of the following: a frequency domain resource set index, a starting resource unit of the frequency domain resource set, and the number of consecutive resource units.
  • the frequency domain resource set in the frequency domain resource set list is configured based on the first reference carrier configuration in the first reference carrier configuration of the cell of the DU of the first node sent by the first node to the control node. That is, the first node may determine the frequency domain resource set based on the first reference carrier configuration reported by itself and the configuration parameters of the frequency domain resource set in the first carrier resource configuration.
  • the first node reports the reference carrier configuration of the cell of the DU of the first node to the control node, where the reference carrier configuration may include at least one of the following:
  • the subcarrier spacing of the reference carrier the frequency offset between the lowest frequency (eg, the lowest subcarrier) of the reference carrier and the reference point, and the bandwidth of the reference carrier.
  • the first carrier resource configuration information may include a list of frequency domain resource sets, and configuration parameters of the frequency domain resource set may be configured based on the first reference carrier in the first reference carrier configuration. That is, the configuration parameters of the frequency domain resource set are parameters relative to the first reference carrier.
  • the embodiment of the present application also provides an implementation manner including but not limited to the following steps:
  • the first node acquires the second carrier resource configuration information sent by the control node.
  • the second carrier resource configuration information in this step may be understood as carrier resource configuration information of a sub-node of the first node. Further, the second carrier resource configuration information may be understood as carrier resource configuration information of the cell of the sub-node DU of the first node.
  • the first node determines, according to the second carrier resource configuration information, the second reference carrier of the cell of the sub-node DU of the first node.
  • the above-mentioned second reference carrier includes a second initial resource block and M resource blocks starting from the second initial resource block, where M is configured in the second carrier resource configuration information, or M is predefined.
  • the first node determines, based on the second reference carrier, at least one frequency domain resource set of the cell of the sub-node DU of the first node.
  • the first node configures or schedules the resources used by the child node MT, and the resources used by the DU cells of the child node are configured or scheduled by the child node itself.
  • the first node needs to obtain the Cell resource configuration of the DU.
  • the control node may send the second carrier resource configuration information of the cell of the DU of the sub-node of the first node to the first node, so that the first node can determine the sub-node DU of the first node according to the second carrier resource configuration information.
  • the second reference carrier and frequency domain resource set of the cell may be used to obtain the Cell resource configuration of the DU.
  • the above-mentioned second carrier resource configuration information includes resource configuration information and carrier configuration information of a cell of a sub-node DU of the first node;
  • the resource configuration information includes at least one of the following: subcarrier spacing, frequency domain resource set list;
  • the carrier configuration information includes at least one of the following: ARFCN, working frequency band and carrier list.
  • the first node needs to combine the resource configuration information of the cell of the child node DU of the first node sent by the control node and
  • the carrier configuration information determines at least one frequency domain resource set of the cell of the sub-node DU.
  • ARFCN can provide the frequency position of the reference point, and the lowest subcarrier of the reference resource block (common resource block 0) of the carrier is the reference point.
  • the carrier list contains at least one subcarrier spacing-specific carrier, and the subcarrier spacing-specific carrier includes at least one of the following: the subcarrier spacing of the carrier, the frequency offset between the lowest available subcarrier of the carrier and the reference point A (e.g., in physical terms). Represented by the number of resource blocks (using the subcarrier spacing of the carrier), ranging from 0 to 2199), carrier bandwidth (for example, represented by the number of physical resource blocks (using the subcarrier spacing of the carrier), ranging from 0 to 2199) 275).
  • the implementation manner of determining the second reference carrier of the cell of the sub-node DU of the first node according to the subcarrier interval in the resource configuration information in the second carrier resource configuration information in the above step S402 may include:
  • the first node determines that the second reference carrier is a carrier whose subcarrier spacing is equal to the subcarrier spacing in the resource configuration information in the carrier list of the cell of the DU of the subnode of the first node; or,
  • the first node determines the carrier in the carrier list of the cell of the DU of the sub-node of the first node corresponding to the sub-carrier interval in the resource configuration information as the second reference carrier; or,
  • the first node determines that the second starting resource block of the second reference carrier is the starting point of a carrier whose subcarrier spacing is equal to the subcarrier spacing in the resource configuration information in the carrier list of the cell of the DU of the first node's sub-node resource blocks; or,
  • the first node determines the starting resource block of the carrier in the carrier list of the cell of the DU of the sub-node of the first node corresponding to the sub-carrier interval in the resource configuration information as the second starting resource block.
  • the second carrier resource configuration information sent by the control node may include at least one of the following: a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the sub-node of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the second carrier resource configuration information includes at least one of the following: a second reference carrier configuration, and a list of frequency domain resource sets;
  • the second reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the frequency of the reference point Location.
  • the bandwidth of the reference carrier may be a fixed value, for example, the bandwidth of the reference carrier is 275 resource blocks, or an integer multiple of 275 resource blocks.
  • one reference carrier corresponds to at least one set of frequency domain resources
  • one frequency domain resource set corresponds to one frequency domain resource set index.
  • the first node obtains the carrier resource configuration information of its sub-nodes, and determines the second reference carrier and at least one frequency domain resource set of the cell of the sub-node DU, so that the first node and its sub-nodes can implement the cell of the sub-node DU for the first node and its sub-nodes.
  • the resource allocation understanding is consistent.
  • the second carrier resource configuration information includes at least one of the following: an identifier of the cell of the DU of the first node associated with the resource configuration of the cell of the DU of the child node of the first node, and a list of frequency domain resource sets.
  • the control node knows which cell of the DU of the sub-node and which cell of the DU of the first node has the same carrier configuration. Therefore, the control node
  • the information of the cell of the DU of the first node associated with the resource configuration of the cell of the DU of the child node of the first node may be sent to the first node, that is, the first node associated with the resource configuration of the cell of the DU of the child node of the first node is sent.
  • the list of frequency domain resource sets includes at least one frequency domain resource set.
  • the configuration parameters of the frequency domain resource set include at least one of the following: a frequency domain resource set index, a starting resource unit of the frequency domain resource set, and the number of consecutive resource units.
  • the frequency domain resource set of the cell of the DU of the sub-node is configured based on the subcarrier interval of the cell of the DU of the first node to which it is associated, or based on the cell of the DU of the first node (the frequency domain resource set is based on ) with reference to the carrier configuration, the configuration mode may be the above-mentioned mode 1, mode 2 or mode 3, or other modes are used to indicate the resource elements included in the frequency domain resource set.
  • control node only needs to provide the first node with the cell identifier of the DU of the first node associated with the frequency domain resource set of the cell of the DU of the sub-node, and does not need to provide the cell of the DU of the sub-node.
  • Carrier configuration so that signaling overhead can be saved.
  • the first node can obtain the configuration of the frequency domain resource set of the cell of the DU of the sub-node based on which carrier of the cell of the DU of the first node is configured. , and in combination with the configuration of the frequency domain resource set of the cell of the DU of the child node provided by the control node for the first node, the frequency domain resource set of the cell of the DU of the child node can be determined.
  • the set of frequency domain resources of the cell of the DU of the child node may be the same as the set of frequency domain resources of the cell of the DU of the first node associated with it, or the second reference carrier may be the same as the cell of the DU of the associated first node The reference carrier is the same.
  • the first node may determine the frequency domain resource set of the cell of the DU of the child node according to the associated identifier of the cell of the DU of the first node and the frequency domain resource set of the cell of the DU of the first node.
  • the first node obtains the identification of the cell of the DU of the associated first node, but does not obtain the list of the frequency domain resource set of the cell of the DU of the child node, it is considered that the frequency domain resource set of the cell of the DU of the child node and the The frequency domain resource sets of the cells of the DU of the associated first node are the same.
  • the resource configuration of the cell of the DU of the sub-node provided by the control node for the first node may further include: whether the frequency domain resource set configuration of the cell of the DU of the sub-node is the same as that of the cell of the DU of the associated first node.
  • the frequency domain resource sets the same indication information.
  • the method for the control node to provide the child node of the first node with the resource configuration of the DU of the child node of the first node and the control node to provide the first node with the resource of the DU of the first node is the same and will not be repeated here.
  • At least one frequency domain resource set of the TDD can be obtained by using the above method.
  • At least one frequency domain resource set of the DL can be obtained by adopting the above method.
  • At least one frequency domain resource set of the UL can be obtained by adopting the above method.
  • At least one frequency domain resource set of the SUL can be acquired by using the above method.
  • the first node may also obtain the resource configuration of the cell of the DU of other nodes sent by the control node.
  • the first node and the second node provide services for the same child node, and the control node provides the first node with the first node.
  • the resource configuration of the cell of the DU of the two nodes the control node provides the second node with the resource configuration of the cell of the DU of the first node, so that the first node and the second node know the resource configuration of the cell of the DU of each other, so as to avoid resource conflict .
  • the first node may further configure the frequency domain resource attribute based on the above determined frequency domain resource set.
  • the configured frequency domain resource attributes may include at least one of slot format configuration and resource attribute configuration.
  • the time slot format configuration can be used to indicate the direction of symbols in the time slot of the cell of the DU of the first node, including at least one of a time slot format configuration period, a time slot index, and choice ⁇ display format, implicit format ⁇ .
  • the explicit format includes at least one of the following: an indication of the arrangement order of the symbols in the time slot, the number of downlink symbols in the time slot, and the number of uplink symbols in the time slot.
  • the implicit format includes at least one of the following, a slot format index.
  • the above choice ⁇ display format, implicit format ⁇ represents one of two formats. That is, for a time slot, either the explicit format is used to configure the direction of the symbols in the time slot, or the implicit format is used to configure the direction of the symbols in the time slot.
  • the arrangement order of the symbol directions in the time slot indicates whether the arrangement order of the symbol directions in the time slot is "downlink-flexible-uplink (abbreviated as DFU)" or "uplink-flexible-downlink (abbreviated as UFD)".
  • DFU downlink-flexible-uplink
  • UFD uplink-flexible-downlink
  • the slot format index may be the number of a slot in a slot format configuration period or a fixed time length (for example, when the fixed time is 10 milliseconds and the subcarrier interval is 480 kHz, the number of slots is 320).
  • a slot format defines the direction of symbols in a slot, and different slot formats can be predefined, and each slot format corresponds to a slot format index.
  • the first node's DU may assume that symbols that are not configured/directed are flexible symbols.
  • a time slot is usually composed of several orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols, and the length of an OFDM symbol is determined by its parameter set (Numerology), and the parameter set includes subcarrier spacing, cyclic prefix length, etc.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the resource attribute configuration is used to configure the attribute of the time-frequency resource of the cell of the DU of the first node.
  • the frequency domain granularity is a set of frequency domain resources, and the time domain granularity is a time slot, or the direction of symbols in a time slot.
  • one frequency domain resource set and one symbol direction of one time slot correspond to (or form) one time-frequency resource unit, or one frequency domain resource set and one time slot correspond to (or form) one time-frequency resource unit.
  • one time-frequency resource unit corresponds to one resource attribute
  • the resource attribute includes at least one of the following: hard (Hard, H), soft (Soft, S), unavailable (unavailable or not available, NA).
  • resource attributes are respectively configured for different symbol directions in the time slot.
  • the resource attribute includes at least one of the following: hard (Hard, H), soft (Soft, S), unavailable (unavailable or not available, NA).
  • Figure 5 shows a schematic diagram of resource attribute configuration of a cell carrier, the cell carrier is divided into two frequency domain resource sets, and a time-frequency resource composed of a frequency domain resource set and a time slot is configured with a resource attribute; or , a time-frequency resource formed by a frequency domain resource set and a symbol direction in a time slot is configured with a resource attribute.
  • Hard resources represent resources that can be used by DUs of the first node; unavailable resources represent resources that cannot be used by DUs of the first node.
  • the soft resource represents a resource that can be used by the DU of the first node only when the conditions are met. For example, when the first node explicitly indicates through signaling that the soft resource can be used, or the DU of the first node When it is implicitly determined that the soft resource can be used, or when it is determined that the first node does not use the soft resource;
  • the resource for the DU of the first node to transmit or receive a special signal or channel is equivalent to being configured as Hard.
  • the special signal or channel sent or received includes at least one of the following: sending a synchronization signal and a broadcast channel block (Synchronization Signal and Physical Broadcast Channel Block, SSB), sending type 0 Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) public search PDCCH corresponding to the space set (can be carried in pdcchConfigSIB1, searchSpaceSIB1 or searchSpaceZero cells), receive physical random access channel (Physical Random Access Channel, PRACH), receive scheduling request (Scheduling Request, SR), send periodic channel state information Reference signal (Channel State Information Reference Signal, CSI-RS), send system information (System Information, SI), receive semi-static uplink transmission, send semi-static downlink transmission.
  • SSB Synchrom Generation
  • PDCCH Physical Downlink Control Channel
  • PDCCH Physical Downlink Control Channel
  • PDCCH Physical Downlink Control
  • the subcarrier spacing referenced by the frequency domain resource set and the subcarrier spacing referenced by the time slot format configuration may be the same, that is, correspond to the same parameter.
  • the subcarrier spacing corresponding to the frequency domain granularity of the resource attribute configuration is the subcarrier spacing referenced by the frequency domain resource set;
  • the subcarrier spacing corresponding to the time domain granularity of the resource attribute configuration is the subcarrier spacing referenced by the slot format configuration.
  • the frequency domain is determined according to the relationship between the two reference subcarrier spacings and the time slot format configuration
  • the time slot format corresponding to the subcarrier interval referenced by the resource set is configured based on the frequency domain resource set and the time slot format corresponding to the subcarrier interval referenced by the determined frequency domain resource set.
  • the subcarrier spacing referenced by the frequency domain resource set and the subcarrier spacing of the reference carrier are the same parameter.
  • one TDD carrier of the TDD cell corresponds to one resource configuration information.
  • one TDD carrier corresponds to at least one carrier with a specific subcarrier interval.
  • the carrier configuration includes at least one of the following parameters: carrier frequency information, transmission bandwidth, and carrier list.
  • One uplink (Uplink, UL) carrier and one DL carrier of the FDD cell respectively correspond to one resource configuration information.
  • one UL carrier corresponds to at least one carrier with a specific subcarrier interval
  • one DL carrier corresponds to at least one carrier with a specific subcarrier interval.
  • the UL carrier configuration includes at least one of the following parameters: carrier frequency information, transmission bandwidth, and a list of carriers.
  • the DL carrier configuration also includes at least one of the following parameters: carrier frequency information, transmission bandwidth, and a list of carriers.
  • a supplementary uplink (Supplementary Uplink, SUL) carrier is configured in the cell of the DU of the first node, the SUL carrier corresponds to one resource configuration information. Wherein, one SUL carrier corresponds to at least one carrier with a specific subcarrier interval.
  • the SUL carrier configuration includes at least one of the following parameters: carrier frequency information, transmission bandwidth, and a list of carriers.
  • the carrier frequency information includes at least one of the following parameters: the frequency position of the reference point, the working frequency band, and whether the frequency is offset by 7.5 kHz;
  • the configuration of each carrier in the list of carriers includes at least one of the following parameters: the subcarrier spacing of the carrier, the frequency offset between the lowest frequency of the carrier and the reference point, and the bandwidth of the carrier.
  • the list of carriers includes at least one carrier with a specific subcarrier spacing.
  • an IAB node can be understood as a relay node (Relay) or a donor node
  • an MT can be It is understood as a terminal entity
  • a DU can be understood as a base station entity.
  • FIG. 6 provides a method for determining a frequency domain resource provided by an embodiment of the present application.
  • the method can be applied to a control node. As shown in FIG. 6 , the method includes but is not limited to the following steps:
  • the control node sends the first carrier resource configuration information to the first node.
  • the first node in the embodiment of the present application may be an IAB node, the control node and the first node belong to the same IAB network, and the first carrier resource configuration information sent by the control node is the resource configuration information of the first node.
  • the first carrier resource configuration information is used to determine the first reference carrier of the cell of the DU of the first node, and the first reference carrier is used to determine at least one frequency domain resource set of the cell of the DU of the first node; wherein, the first reference carrier It includes: a first initial resource block and N resource blocks starting from the first initial resource block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • the first carrier resource configuration information may include at least one of the following: subcarrier spacing, and a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, the frequency domain resource set includes one or more resource units, and the configuration parameters of the frequency domain resource set may include at least one of the following: a frequency domain resource set index, a frequency domain resource set The starting resource unit of the set, the number of consecutive resource units.
  • the carrier with a specific subcarrier spacing in the carrier list of the cell of the DU of the corresponding first node can be determined.
  • the frequency domain resource set can be determined.
  • the manner of configuring the above frequency domain resource set may include the following different manners, for example:
  • the frequency domain resource set is indicated by a resource indication value (Resource indication value, RIV).
  • RIV resource indication value
  • One frequency domain resource set is composed of at least one resource unit, and one RIV may indicate the initial resource unit and the number of consecutive resource units of one frequency domain resource set.
  • mod is the modulo (or remainder) operation
  • CU() represents the round-up operation
  • floor() represents the round-down operation
  • m can be understood as the index of the frequency domain resource set
  • the above carrier can be understood as the frequency domain resource set
  • the carrier on which the configuration is based ie, the reference carrier
  • the above method is only an example, and other methods can also be used to calculate and determine.
  • Mode 3 Indicate the start resource unit index and the end resource unit index of the frequency domain resource set.
  • the frequency domain resource set consists of resource units between the start resource unit and the end resource unit.
  • the resource units may be numbered in ascending order of frequency. For example, the resource element of the lowest frequency of the carrier is numbered 0, the next lowest resource element is numbered 1, and so on.
  • the starting resource element of the frequency domain resource set is defined relative to the first resource element of the reference carrier, that is, the starting resource element of the frequency domain resource set determined in the above manner is the offset, according to the starting resource element of the reference carrier.
  • the offset of the initial resource unit relative to the reference point (referred to as offset), the offset of the initial resource unit of the frequency domain resource set relative to the reference point A can be known. Therefore, the first node can know the starting frequency position of the frequency domain resource set according to the frequency position of the reference carrier and the configuration of the frequency domain resource set, and then can know the frequency domain resource set according to the number of resource units included in the frequency domain resource set. frequency location.
  • the starting resource unit of the frequency domain resource set is the resource unit S of the reference carrier (ie, the S+1th resource unit), and the offset of the starting resource unit of the reference carrier relative to the reference point is offset, then the frequency domain resource The offset of the starting resource unit of the set relative to the reference point is offset+S resource units. Then, according to the number of resource units included in the frequency domain resource set, the frequency position of the frequency domain resource set can be known.
  • the above-mentioned resource unit may be a resource block (Resource Block, RB), or a physical resource block, or an RB group, or a physical resource block group, or may also be a precoding resource block group (Precoding resource block group, PRG).
  • RB resource block
  • Precoding resource block group PRG
  • the number of resource blocks included in the RB group or PRG can be configured, or predefined, or related to the bandwidth of the reference carrier.
  • One RB includes 12 subcarriers in the frequency domain, that is, the bandwidth of the RB is 12 times the subcarrier spacing.
  • the above-determined set of frequency domain resources may be indexed in order from low frequency to high frequency of the reference carrier.
  • the first carrier resource configuration information sent by the control node may include at least one of the following: a frequency domain resource set list.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the first carrier resource configuration information may include at least one of the following: a first reference carrier configuration, and a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: a frequency domain resource set index, a starting resource unit of the frequency domain resource set, and the number of consecutive resource units.
  • the frequency domain resource set may be configured based on the first reference carrier, and the configuration mode may adopt any one of the above-mentioned mode 1, mode 2, and mode 3. Of course, other modes may also be used to indicate the resource units included in the frequency domain resource set.
  • control node may further receive the first reference carrier configuration of the cell of the DU of the first node sent by the first node.
  • the first reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the frequency offset of the reference carrier frequency location.
  • the first carrier resource configuration information may include a list of frequency domain resource sets, and the list of frequency domain resource sets includes at least one frequency domain resource set.
  • the configuration parameters of the frequency domain resource set include at least one of the following: a frequency domain resource set index, a starting resource unit of the frequency domain resource set, and the number of consecutive resource units.
  • the frequency domain resource set list is configured based on the first reference carrier configuration in the first reference carrier configuration of the cell of the DU of the first node sent by the first node to the control node.
  • control node receives the first reference carrier configuration of the cell of the DU of the first node reported by the first node, where the first reference carrier configuration may include at least one of the following:
  • the subcarrier spacing of the reference carrier the frequency offset between the lowest frequency of the reference carrier (for example, the lowest subcarrier) and the reference point A, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, and the frequency position of the reference point.
  • control node may also send second carrier resource configuration information to the first node, where the second carrier resource configuration information is used to determine the second reference carrier of the cell of the DU of the sub-node of the first node, the first The second reference carrier is used to determine at least one frequency domain resource set of the cell of the sub-node DU of the first node; wherein, the second reference carrier includes: a second initial resource block and M resources starting from the second initial resource block block, M is configured in the second carrier resource configuration information, or M is predefined.
  • the above-mentioned second carrier resource configuration information includes resource configuration information and carrier configuration information of a cell of a sub-node DU of the first node;
  • the resource configuration information includes at least one of the following: subcarrier spacing, frequency domain resource set list;
  • the carrier configuration information includes at least one of the following: ARFCN, working frequency band, and carrier list.
  • ARFCN can provide the frequency position of the reference point, and the lowest subcarrier of the reference resource block (common resource block 0) of the carrier is the reference point.
  • the carrier list contains at least one subcarrier spacing-specific carrier, and the subcarrier spacing-specific carrier includes at least one of the following: the subcarrier spacing of the carrier, the frequency offset between the lowest available subcarrier of the carrier and the reference point A (e.g., in physical terms). the number of resource blocks (using the subcarrier spacing defined for the carrier), ranging from 0 to 2199), the carrier bandwidth (eg, in the number of physical resource blocks (using the subcarrier spacing IE defined for the carrier), Values range from 0 to 275).
  • the second carrier resource configuration information sent by the control node may include at least one of the following: a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the sub-node of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the second carrier resource configuration information may also include at least one of the following: a second reference carrier configuration, and a list of frequency domain resource sets;
  • the second reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the frequency of the reference point Location.
  • the second carrier resource configuration information includes at least one of the following: an identifier of the cell of the DU of the first node associated with the resource configuration of the cell of the DU of the child node of the first node, and a list of frequency domain resource sets.
  • the control node when the control node obtains the carrier coordination of the cells of the DUs of the first node and the child nodes of the first node, the control node knows which cell of the DU of the child node has the same carrier configuration as the cell of the DU of the first node. Therefore, the control node may send the resource configuration of the cell of the DU of the child node of the first node to the first node to which the resource configuration of the DU of the first node is associated, that is, the resource configuration of the cell that sends the DU of the child node of the first node is associated with the resource configuration.
  • the set of frequency domain resources of the cell of the DU of the child node of the first node is the same as the set of frequency domain resources of the cell of the DU of the associated first node.
  • the second reference carrier is the same as the reference carrier of the cell of the DU of the associated first node.
  • FIG. 7 is a frequency domain resource determination apparatus provided by an embodiment of the present application. As shown in FIG. 7 , the apparatus may include: an acquisition module 701 and a determination module 702;
  • the obtaining module is configured to obtain the first carrier resource configuration information sent by the control node;
  • a determining module configured to determine the first reference carrier of the cell of the DU of the above-mentioned apparatus according to the first carrier resource configuration information
  • the determining module is further configured to determine at least one frequency domain resource set of the cell of the DU of the above-mentioned apparatus by the first reference carrier;
  • the first reference carrier includes: a first initial resource block and N resource blocks starting from the first initial resource block, where N is configured in the resource configuration information of the first carrier, or N is predefined.
  • the first carrier resource configuration information includes at least one of the following: subcarrier spacing, and a list of frequency domain resource sets.
  • the above determining module may be configured to determine that the first reference carrier is a carrier whose subcarrier spacing is equal to the subcarrier spacing in the first carrier resource configuration information in the carrier list of the cell of the DU of the above device ;
  • the determining module is configured to determine the carrier in the carrier list of the cell of the DU of the first node corresponding to the subcarrier interval in the first carrier resource configuration information as the first reference carrier;
  • the determining module is configured to determine the initial resource block of the carrier in the carrier list of the cell of the DU of the first node corresponding to the subcarrier interval in the first carrier resource configuration information as the first initial resource block;
  • the determining module is configured to determine that the first starting resource block is the starting resource block of the carrier whose subcarrier spacing is equal to the subcarrier spacing in the first carrier resource configuration information in the carrier list of the cell of the DU of the device;
  • the determining module is configured to determine that the first starting resource block is the starting resource block of a carrier in the carrier list of the cell of the DU of the first node corresponding to the subcarrier interval in the first carrier resource configuration information.
  • the first carrier resource configuration information may include at least one of the following: a frequency domain resource set list.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the first carrier resource configuration information includes at least one of the following: a first reference carrier configuration, and a frequency domain resource set list.
  • the above apparatus may further include a sending module 703;
  • the sending module is configured to send the first reference carrier configuration of the cell of the DU of the above-mentioned apparatus to the control node.
  • the first reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the reference carrier frequency position of the point.
  • the first carrier resource configuration information includes a frequency domain resource set list, and the frequency domain resource set list is determined based on the above-mentioned first reference carrier configuration.
  • the obtaining module is further configured to obtain the second carrier resource configuration information sent by the control node;
  • a determining module configured to determine, according to the second carrier resource configuration information, the second reference carrier of the cell of the DU of the sub-node of the above-mentioned apparatus
  • the determining module may further determine, based on the second reference carrier, at least one frequency domain resource set of the cell of the DU of the sub-node of the above apparatus;
  • the second reference carrier includes: a second initial resource block and M resource blocks starting from the second initial resource block, where M is configured in the second carrier resource configuration information, or M is a predefined .
  • the second carrier resource configuration information includes resource configuration information and carrier configuration information of the cell of the sub-node DU of the above apparatus;
  • the resource configuration information includes at least one of the following: subcarrier spacing, frequency domain resource set list;
  • the carrier configuration information includes at least one of the following: ARFCN, working frequency band, and carrier list.
  • the determining module is configured to determine that the second reference carrier is a carrier whose subcarrier spacing is equal to the subcarrier spacing in the resource configuration information in the carrier list of the cell of the DU of the sub-node of the above apparatus; or ,
  • the determining module is configured to determine the carrier in the carrier list of the cell of the DU of the sub-node of the first node corresponding to the sub-carrier interval in the resource configuration information as the second reference carrier; or,
  • a determining module configured to determine the initial resource block of the carrier in the carrier list of the cell of the DU of the sub-node of the first node corresponding to the sub-carrier interval in the resource configuration information as the second initial resource block;
  • the determining module is configured to determine that the second starting resource block is the starting resource of the carrier whose subcarrier spacing is equal to the subcarrier spacing in the resource configuration information in the carrier list of the cell of the DU of the sub-node of the above-mentioned device piece;
  • the determining module is configured to determine that the second starting resource block is the starting resource block of the carrier in the carrier list of the cell of the DU of the sub-node of the first node corresponding to the sub-carrier interval in the second carrier resource configuration information.
  • the second carrier resource configuration information includes at least one of the following: a second reference carrier configuration, and a list of frequency domain resource sets;
  • the second reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the frequency of the reference point Location.
  • the second carrier resource configuration information includes at least one of the following: the cell identifier of the DU of the first node associated with the resource configuration of the cell of the DU of the sub-node of the above apparatus, and a list of frequency domain resource sets.
  • the set of frequency domain resources of the cell of the DU of the child node of the above-mentioned apparatus is the same as the set of frequency domain resources of the cell of the DU of the associated apparatus itself.
  • the second reference carrier is the same as the reference carrier of the cell of the DU of the associated device.
  • the apparatus for determining frequency domain resources provided in this embodiment is set to implement the methods for determining frequency domain resources in the embodiments shown in FIG. 3 and FIG.
  • FIG. 9 is an apparatus for determining frequency domain resources provided by an embodiment of the present application. As shown in FIG. 9 , the apparatus includes: a sending module 901;
  • a sending module configured to send the first carrier resource configuration information to the first node
  • the first carrier resource configuration information is used to determine the first reference carrier of the cell of the DU of the first node, and the first reference carrier is used to determine at least one frequency domain resource set of the cell of the DU of the first node;
  • the reference carrier includes: a first initial resource block and N resource blocks starting from the first initial resource block, where N is configured in the resource configuration information of the first carrier, or N is predefined.
  • the first carrier resource configuration information includes at least one of the following: subcarrier spacing, and a list of frequency domain resource sets.
  • the first carrier resource configuration information sent by the control node may include at least one of the following: a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the first carrier resource configuration information includes at least one of the following: a first reference carrier configuration, and a frequency domain resource set list.
  • the above-mentioned apparatus may further include a receiving module 902;
  • the receiving module is configured to receive the first reference carrier configuration of the cell of the DU of the first node sent by the first node, and the first reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the lowest frequency of the reference carrier and the The frequency offset between the reference points, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, and the frequency position of the reference point.
  • the first carrier resource configuration information includes a frequency domain resource set list, and the frequency domain resource set list is determined based on the configuration sent by the first node to the above-mentioned first reference carrier.
  • the sending module is further configured to send the second carrier resource configuration information to the first node.
  • the second carrier resource configuration information is used to determine the second reference carrier of the cell of the DU of the sub-node of the first node, and the second reference carrier is used to determine at least one frequency domain resource set of the cell of the sub-node DU of the first node;
  • the second reference carrier includes: a second initial resource block and M resource blocks starting from the second initial resource block, where M is configured in the second carrier resource configuration information, or M is predefined.
  • the second carrier resource configuration information includes resource configuration information and carrier configuration information of a cell of a sub-node DU of the first node; wherein the resource configuration information includes at least one of the following: subcarrier spacing, frequency domain resource set List; the carrier configuration information includes at least one of the following: ARFCN, working frequency band, and carrier list.
  • the second carrier resource configuration information sent by the control node may include at least one of the following: a list of frequency domain resource sets.
  • the list of frequency domain resource sets includes at least one frequency domain resource set, and the configuration parameters of the frequency domain resource set may include at least one of the following: frequency domain resource set index, subcarrier spacing, starting resource unit of frequency domain resource set, continuous Number of resource units.
  • each frequency domain resource set is configured based on the carrier in the list of carriers of the cell of the DU of the sub-node of the first node corresponding to the subcarrier interval in the configuration parameter of the frequency domain resource set.
  • the second carrier resource configuration information includes at least one of the following: a second reference carrier configuration, and a list of frequency domain resource sets;
  • the second reference carrier configuration includes at least one of the following: the subcarrier spacing of the reference carrier, the frequency offset between the lowest frequency of the reference carrier and the reference point, the bandwidth of the reference carrier, the frequency band corresponding to the reference carrier, the frequency of the reference point Location.
  • the second carrier resource configuration information includes at least one of the following: an identifier of the cell of the DU of the first node associated with the resource configuration of the cell of the DU of the child node of the first node, and a list of frequency domain resource sets.
  • the set of frequency domain resources of the cell of the DU of the child node of the first node is the same as the set of frequency domain resources of the cell of the DU of the associated first node.
  • the second reference carrier is the same as the reference carrier of the cell of the DU of the associated first node.
  • the apparatus for determining a frequency domain resource provided in this embodiment is configured to implement the method for determining a frequency domain resource in the embodiment shown in FIG. 6 , and its implementation principle and technical effect are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of a communication node according to an embodiment.
  • the node includes a processor 1101 and a memory 1102 ; the number of processors 1101 in the node may be one or more.
  • a processor 1101 is taken as an example; the processor 1101 and the memory 1102 in a node may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 11 .
  • the memory 1102 can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to the frequency domain resource determination method in the embodiment of FIG. 3, FIG. 4 or FIG. 6 of the present application.
  • the obtaining module 701, the determining module 702, or the sending module 901 in the frequency domain resource determining apparatus implements the above frequency domain resource determination method by running the software programs, instructions and modules stored in the memory 1102 .
  • the memory 1102 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the set-top box, and the like. Additionally, memory 1102 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor in the above-mentioned node may also implement the above-mentioned frequency domain resource determination method through hardware circuits such as logic circuits, gate circuits and the like in the above-mentioned node.
  • Embodiments of the present application further provide a readable and writable storage medium for computer storage, where the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to perform the above implementation
  • a frequency domain resource determination method An example of a frequency domain resource determination method.
  • Embodiments of the present application provide a method, device, node, and storage medium for determining frequency domain resources.
  • the method includes: a first node acquires first carrier resource configuration information sent by a control node; the first node obtains first carrier resource configuration information according to the first carrier resource configuration information determining a first reference carrier of the cell of the DU of the first node; the first node determines at least one frequency domain resource set of the cell of the DU of the first node based on the first reference carrier; wherein the first reference carrier includes: a first starting resource block and N resource blocks starting from the first starting resource block, where N is configured in the first carrier resource configuration information, or N is predefined.
  • carrier-based frequency domain resource division can be achieved.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively.
  • Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • Computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

一种频域资源确定方法、装置、节点和存储介质，该方法包括：第一节点获取控制节点发送的第一载波资源配置信息(S301)；第一节点根据第一载波资源配置信息确定第一节点的DU的小区的第一参考载波(S302)；第一节点基于第一参考载波确定第一节点的DU的小区的至少一个频域资源集合(S303)；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。

Description

频域资源确定方法、装置、节点和存储介质
相关申请的交叉引用
本申请基于申请号为202110357612.6、申请日为2021年4月1日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及无线通信技术领域，尤其涉及一种频域资源确定方法、装置、节点和存储介质。
背景技术
新一代移动通信系统(New Radio，NR)允许比2G、3G、4G系统更灵活的网络组网方式以及新类型网络节点的存在。目前，整合了回程链路(backhaul link)和正常的NR接入链路(access link)的新类型节点即IAB节点(Integrated Access and Backhaul Node)，其可以提供比单一的蜂窝覆盖更为灵活的覆盖和组网方式，是未来移动通讯网络中重要的组成部分。
IAB网络可以支持多跳，IAB节点包括两类逻辑实体：移动终端(MT，Mobile-Termination)和分布式单元(Distributed Unit，DU)。IAB节点通过MT(或称为IAB-MT)接入父节点(例如IAB节点或者施主IAB)实现无线回传，通过DU(或称为IAB-DU)为子节点或者用户设备(User Equipment，UE)提供服务。因IAB节点的能力不同，IAB-MT和IAB-DU可以采用时分复用的方式传输数据，也可以采用频分复用或者空分复用(或称为非时分复用)的方式同时接收数据、同时发送数据，或者一个接收数据同时另一个发送数据。对于非时分复用的场景，由于一个小区通常支持多个子载波间隔特定的载波，那么基于哪个载波做频域资源划分，目前还没有具体方案。而IAB-MT和IAB-DU采用非时分复用可以更灵活地使用资源和降低传输时延，因此，如何确定基于哪个载波做频域资源划分是亟需解决的问题。
发明内容
本申请实施例提出一种频域资源确定方法、装置、节点和存储介质。
本申请实施例提供了一种频域资源确定方法，应用于第一节点，该方法包括：第一节点获取控制节点发送的第一载波资源配置信息；第一节点根据第一载波资源配置信息确定第一节点的DU的小区的第一参考载波；所述第一节点基于第一参考载波确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
本申请实施例提供了一种频域资源确定方法，应用于控制节点，该方法包括：控制节点向第一节点发送第一载波资源配置信息；第一载波资源配置信息用于确定第一节点的DU的小区的第一参考载波，第一参考载波用于确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
本申请实施例提供了一种频域资源确定装置，该装置包括：获取模块，被设置成获取控制节点发送的第一载波资源配置信息；确定模块，被设置成根据第一载波资源配置信息确定上述装置的DU的小区的第一参考载波；确定模块，还被设置成根据第一参考载波确定上述装置的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
本申请实施例提供了一种频域资源确定装置，该装置包括：发送模块，被设置成向第一 节点发送第一载波资源配置信息；第一载波资源配置信息用于确定第一节点的DU的小区的第一参考载波，第一参考载波用于确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
本申请实施例提供了一种通信节点，包括：处理器，处理器执行计算机程序时，实现如本申请实施例提供的频域资源确定方法。
本申请实施例提供了可读写存储介质，该可读写存储介质存储有计算机程序，计算机程序被处理器执行时实现如本申请实施例提供的频域资源确定方法。
附图说明
图1是本申请实施例提供的一种信道带宽50MHz的载波对应的60kHz子载波间隔特定的载波和120kHz子载波间隔特定的载波的示意图。
图2是本申请实施例提供的一种信道带宽200MHz的载波对应的60kHz子载波间隔特定的载波和120kHz子载波间隔特定的载波的示意图。
图3是本申请实施例提供的一种频域资源确定方法的流程图。
图4是本申请实施例提供的另一种频域资源确定方法的流程图。
图5是本申请实施例提供的一种小区载波的资源属性配置的示意图。
图6是本申请实施例提供的再一种频域资源确定方法的流程图。
图7是本申请实施例提供的一种频域资源确定装置的结构示意图。
图8是本申请实施例提供的另一种频域资源确定装置的结构示意图。
图9是本申请实施例提供的再一种频域资源确定装置的结构示意图。
图10是本申请实施例提供的另外一种频域资源确定装置的结构示意图。
图11是本申请实施例提供的一种通信节点的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚明白，下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
另外，在本申请实施例中，“可选地”或者“示例性地”等词用于表示作例子、例证或说明。本申请实施例中被描述为“可选地”或者“示例性地”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“可选地”或者“示例性地”等词旨在以具体方式呈现相关概念。
为了便于更加清楚地理解本申请实施例提供的方案，这里对本申请实施例中所涉及到的相关概念进行解释，具体如下：
施主IAB(IAB Donor)通常连接(例如有线连接)到核心网，它通常包含一个集中式单元(Central Unit，CU)以及一个或多个分布式单元(Distributed Unit，DU)。CU在逻辑上和各跳IAB节点的DU连接，协调配置各跳IAB节点的资源。
频域资源集合配置用于配置IAB-DU小区的频域资源集合。
IAB-DU向CU上报所服务的小区信息(Served Cell Information)，并提供每个小区的载波配置，通常，小区支持至少一个子载波间隔，一个子载波间隔对应一个子载波间隔特定的载波(SCS-specific carriers)，小区的每个时分双工(Time Division Duplexing，TDD)、每个下行(Downlink，DL)、每个上行(Uplink，UL)或者每个补充上行(Supplementary Uplink，SUL)对应一个小区的载波配置，小区的载波配置包括如下至少之一：频率信息(FreqInfo)，传输带宽(Transmission Bandwidth)，载波列表(Carrier List)。其中，频率信息包括如下至少之一：参考点A的频率位置，工作频段，频率是否偏移7.5kHz。载波列表包含至少一个子载波间隔特定的载波。载波列表中的载波属于同一个工作频段，并且相对于同一个绝对频率(通 用RB0的子载波0，即参考点A)配置，绝对频率通常用(Absolute Radio Frequency Channel Number，ARFCN)指示。载波的配置参数包括如下至少之一：载波的子载波间隔，载波的最低频率与参考点A之间的频率偏移，载波的带宽。图1给出了信道带宽50MHz的载波对应的60kHz子载波间隔特定的载波(载波带宽66个RBs)和120kHz子载波间隔特定的载波(载波带宽32个RBs)；图2给出了信道带宽200MHz的载波对应的60kHz子载波间隔特定的载波(载波带宽264个RBs)和120kHz子载波间隔特定的载波(载波带宽132个RBs)。不同子载波间隔特定的载波需要满足最小保护带要求和嵌套结构，其中，最小保护带要求是预定义的，嵌套结构指不同子载波间隔的RB是对齐，例如，对于60kHz和120kHz子载波间隔，嵌套结构指的是子载波间隔120kHz的一个RB与子载波间隔60kHz的2个RBs对齐。控制节点根据IAB-DU上报所服务的小区信息可以获取IAB-DU小区的载波信息。
图3为本申请实施例提供的一种频域资源确定方法的流程图，如图3所示，该方法可以包括但不限于以下步骤：
S301、第一节点获取控制节点发送的第一载波资源配置信息。
在本申请实施例中，以第一节点为IAB节点为例，控制节点与第一节点属于同一个IAB网络中，控制节点可以为网络中的CU，控制节点发送的第一载波资源配置信息为第一节点的资源配置信息。当然，本申请实施例提供的方法也可以应用于例如基站等其他类型的无线通信设备中。
S302、第一节点根据第一载波资源配置信息确定第一节点的DU的小区的第一参考载波。
在一些示例中，本申请实施例中确定的第一参考载波可以包括第一起始资源块和从第一起始资源块开始的N个资源块，N可以为在第一载波资源配置信息中配置的，或者，N为预定义的。
S303、第一节点基于第一参考载波确定第一节点的DU的小区的至少一个频域资源集合。
频域资源集合是基于第一参考载波配置的，例如，可以配置频域资源集合的起始资源块(或者起始资源单元)相对于第一参考载波的起始资源块(或者起始资源单元)的偏移量，并且频域资源集合包含的资源块数(或者资源单元数，即频域资源集合的带宽)可以配置或者预定义，那么第一节点在确定第一参考载波后，即可确定第一参考载波的频率位置，从而根据频率资源集合与第一参考载波的位置关系，可以进一步确定第一节点的DU的小区的至少一个频域资源集合。
本申请实施例提供了一种频域资源确定方法，该方法包括：第一节点获取控制节点发送的第一载波资源配置信息；第一节点根据第一载波资源配置信息确定第一节点的DU的小区的第一参考载波；第一节点基于第一参考载波确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
在一种示例中，上述控制节点发送的第一载波资源配置信息可以包括如下至少之一：子载波间隔，频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合包含一个或多个资源单元，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。基于第一载波资源配置信息中的子载波间隔，即可确定对应的第一节点的DU的小区的载波列表中子载波间隔特定的载波(SCS-specific carriers)，根据该子载波间隔特定的载波以及频域资源集合的配置参数，可以确定频域资源集合。如图1所示，DU的小区的载波列表包含60kHz子载波间隔特定的载波和120kHz子载波间隔特定的载波。如果第一载波资源配置信息中的子载波间隔被配置为60kHz，则基于60kHz子载波间隔特定的载波配置频域资源集合；如果第一载波资源配置信息中的子载波间隔被配置为120kHz，则基于120kHz子载波间隔特定的载波配置频域资源集合。
在一些示例中，配置上述频域资源集合的方式可以包括以下几种不同的方式，例如：
方式1：通过资源指示值(Resource indication value，RIV)指示频域资源集合。一个频 域资源集合由至少一个资源单元组成，一个RIV可以指示一个频域资源集合的起始资源单元和连续资源单元数。
方式2：配置或者预定义频域资源集合的最大数目为N，则频域资源集合的数目为M，M＝min(N，N size)，定义M 1＝N sizemodM，K 1＝ceil(N size/M)，K 2＝floor(N size/M)，如果M 1＞0，那么频域资源集合m＝0,1,……，M 1-1，由索引为m*K 1+k的资源单元组成，k＝0,1,……，K 1-1。频域资源集合m＝M 1，M 1+1，……，M-1时，由索引为M 1·K 1+(m-M 1)·K 2+k的资源单元组成，其中，k＝0,1,……，K 2-1，N size为载波包含的资源单元数。
其中，mod为取模(或者取余)运算，cei()表示上取整运算，floor()表示下取整运算，m可以理解为频域资源集合索引，上述载波可以理解为频域资源集合配置所基于的载波(即参考载波)，上述方法仅是举例，也可以通过其他方法计算确定。
方式3：指示频域资源集合的起始资源单元索引和结束资源单元索引。频域资源集合由起始资源单元到结束资源单元之间的资源单元组成。
在一些实例中，资源单元可以按照频率升序编号。例如，载波的最低频率的资源单元编号为0，次低资源单元编号为1，以此类推。
上述方式中，频域资源集合的起始资源单元是相对参考载波的第一个资源单元定义的，即上述方式确定的频域资源集合的起始资源单元是偏移量，根据参考载波的起始资源单元相对参考点的偏移量(记为offset)，可以知道频域资源集合的起始资源单元相对参考点A的偏移量。因此，第一节点根据参考载波的频率位置和频域资源集合的配置，可以知道频域资源集合的起始频率位置，再根据频域资源集合包含的资源单元数，就可以知道频域资源集合的频率位置。例如，频域资源集合的起始资源单元为参考载波的资源单元S(即第S+1个资源单元)，参考载波的起始资源单元相对参考点的偏移量是offset，则频域资源集合的起始资源单元相对参考点的偏移量是offset+S个资源单元。再根据频域资源集合包含的资源单元数，就可以知道频域资源集合的频率位置。
上述资源单元可以为资源块(Resource Block，RB)，或者物理资源块，或者RB组，或者物理资源块组，或者，也可以为预编码资源块组(Precoding resource block group，PRG)。RB组或者PRG包含的资源块数目可以配置，或者预定义，或者与参考载波的带宽有关。
一个RB在频域上包含12个子载波，即RB的带宽为子载波间隔的12倍。
上述确定的频域资源集合可以按照从参考载波的低频率到高频率的顺序进行索引。
相应地，步骤S302中，根据第一载波配置信息中的子载波间隔确定第一参考载波的实现方式可以包括：
第一节点将第一节点的DU的小区的载波列表中载波的子载波间隔与第一载波资源配置信息中的子载波间隔相等的载波确定为第一参考载波；
或者，第一节点将第一载波资源配置信息中的子载波间隔对应的第一节点的DU的小区的载波列表中载波确定为第一参考载波；
或者，第一节点将第一节点的DU的小区的载波列表中载波的子载波间隔与第一载波资源配置信息中的子载波间隔相等的载波的起始资源块确定为第一起始资源块；
或者，第一节点将第一载波资源配置信息中的子载波间隔对应的第一节点的DU的小区的载波列表中载波的起始资源块确定为第一起始资源块。
在一些实例中，第一节点基于子载波间隔特定的载波配置频域资源集合时，可以假定该载波的起始频率位置不变，载波的带宽为固定值，例如275个RBs。
第一节点根据第一载波资源配置信息中的子载波间隔，可以确定该子载波间隔对应的子载波间隔特定的载波，根据基于子载波间隔特定的载波的频域资源集合配置确定频域资源集合(的频域位置)。例如，控制节点发送给第一节点的第一载波资源配置信息中的子载波间隔为120kHz，则频域资源集合是基于120kHz子载波间隔特定的载波配置的。
在一种示例中，第一载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的DU的小区的载波的列表中的载波配置的。
在一种示例中，控制节点发送的第一载波资源配置信息可以包括如下至少之一：第一参考载波配置，频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。频域资源集合可以基于第一参考载波配置，配置方式可以采用上述方式1、方式2、方式3中的任意一种，当然，也可以采用其他方式指示频域资源集合包含的资源单元。例如，对于信道带宽200MHz，子载波间隔60kHz，频域资源集合0由参考载波的资源单元0开始，共132个资源单元组成；频域资源集合1由参考载波的资源单元132开始，共132个资源单元组成。
进一步地，第一节点还可以向控制节点发送第一节点的DU的小区的第一参考载波配置。
在一些示例中，该第一参考载波配置可以包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一些实例中，参考载波的带宽可以预定义。
在一些实例中，参考载波对应的频段可以为第一节点的DU的小区的载波配置中的工作频段。
在一些实例中，参考点的频率位置可以为第一节点的DU的小区的载波配置中的绝对频率ARFCN(或者参考点的频率位置)。
在一些实例中，若控制节点发送的第一载波资源配置信息中的第一参考载波配置中不包含参考点的频率位置，那么第一节点可以假定参考载波对应的参考点的频率位置与第一节点的DU的小区载波对应的参考点的频率位置相同，或者第一节点可以假定参考载波对应的参考点的频率位置与第一节点的DU的小区的载波配置中参考点的频率位置相同。
在一些实例中，若控制节点发送的第一载波资源配置信息中的第一参考载波配置中不包含参考载波对应的工作频段，那么第一节点可以假定参考载波对应的工作频段与第一节点的DU的小区载波对应的工作频段相同，或者第一节点可以假定参考载波对应的工作频段与第一节点的DU的小区的载波配置中的工作频段相同。
在一种示例中，第一载波资源配置信息可以包括频域资源集合列表。频域资源集合的列表包括至少一个频域资源集合。频域资源集合的配置参数包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。
该频域资源集合列表中的频域资源集合是基于第一节点发送给控制节点的第一节点的DU的小区的第一参考载波配置中的第一参考载波配置的。也就是说，第一节点基于自己上报的第一参考载波配置和第一载波资源配置中的频域资源集合的配置参数可以确定频域资源集合。
例如，第一节点向控制节点上报第一节点的DU的小区的参考载波配置，该参考载波配置可以包括如下至少之一：
参考载波的子载波间隔，参考载波的最低频率(例如最低子载波)与参考点之间的频率偏移，参考载波的带宽。
第一载波资源配置信息可以包括频域资源集合的列表，基于该第一参考载波配置中的第一参考载波可以配置频域资源集合的配置参数。也就是说，频域资源集合的配置参数是相对于第一参考载波的参数。
如图4所示，在一种示例中，本申请实施例还提供了一种实现方式包括但不限于以下步骤：
S401、第一节点获取控制节点发送的第二载波资源配置信息。
本步骤中的第二载波资源配置信息可以理解为第一节点的子节点的载波资源配置信息。进一步地，该第二载波资源配置信息可以理解为第一节点的子节点DU的小区的载波资源配置信息。
S402、第一节点根据第二载波资源配置信息确定第一节点的子节点DU的小区的第二参考载波。
上述第二参考载波包括第二起始资源块和从第二起始资源块开始的M个资源块，其中，M为在第二载波资源配置信息中配置的，或者M为预定义的。
S403、第一节点基于第二参考载波确定第一节点的子节点DU的小区的至少一个频域资源集合。
第一节点配置或者调度子节点MT使用的资源，子节点的DU的小区使用的资源是由子节点自己配置或调度的，为避免子节点的MT和DU资源冲突，第一节点需要获取子节点的DU的小区资源配置。那么，控制节点可以向第一节点发送第一节点的子节点的DU的小区的第二载波资源配置信息，以实现第一节点根据该第二载波资源配置信息确定第一节点的子节点DU的小区的第二参考载波和频域资源集合。
在一种示例中，上述第二载波资源配置信息包括第一节点的子节点DU的小区的资源配置信息和载波配置信息；
资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；
载波配置信息包括以下至少之一：ARFCN，工作频段和载波列表。
即为了保证第一节点和第一节点的子节点对子节点的DU的小区的资源配置理解一致，那么第一节点需要结合控制节点发送的第一节点的子节点DU的小区的资源配置信息和载波配置信息确定子节点DU的小区的至少一个频域资源集合。
上述参数中，ARFCN可以提供参考点的频率位置，载波的参考资源块(公共资源块0)的最低子载波即为参考点。
载波列表包含至少一个子载波间隔特定的载波，子载波间隔特定的载波包括如下至少一个：载波的子载波间隔、载波的最低可用子载波与参考点A之间的频率偏移(例如，以物理资源块的数量表示(使用该载波的子载波间隔)，取值范围0至2199)、载波带宽(例如，以物理资源块的数量表示(使用该载波的子载波间隔)，取值范围0至275)。
相应地，上述步骤S402中根据第二载波资源配置信息中资源配置信息中的子载波间隔确定第一节点的子节点DU的小区的第二参考载波的实现方式可以包括：
第一节点确定第二参考载波为第一节点的子节点的DU的小区的载波列表中载波的子载波间隔与资源配置信息中的子载波间隔相等的载波；或者，
第一节点将资源配置信息中的子载波间隔对应的第一节点的子节点的DU的小区的载波列表中载波确定为第二参考载波；或者，
第一节点确定第二参考载波的第二起始资源块为第一节点的子节点的DU的小区的载波列表中载波的子载波间隔与资源配置信息中的子载波间隔相等的载波的起始资源块；或者，
第一节点将资源配置信息中的子载波间隔对应的第一节点的子节点的DU的小区的载波列表中载波的起始资源块确定为第二起始资源块。
在一种示例中，上述控制节点发送的第二载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的子节点的DU的小区的载波的列表中的载波配置的。
在一种示例中，第二载波资源配置信息包括如下至少之一：第二参考载波配置，频域资源集合列表；
其中，第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一些实例中，上述参考载波的带宽可以为固定值，例如参考载波的带宽为275个资源块，或者275的整数倍个资源块。
在一些实例中，一个参考载波对应至少一个频域资源集合；
在一些实例中，一个频域资源集合对应一个频域资源集合索引。
第一节点获取其子节点的载波资源配置信息，并确定子节点DU的小区的第二参考载波和至少一个频域资源集合，即可实现第一节点和其子节点对于子节点的DU的小区的资源配置理解一致。
在一种示例中，第二载波资源配置信息包括如下至少之一：第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的标识，频域资源集合列表。
在第一节点和子节点均向控制节点上报了各自DU的小区的载波配合的情况下，控制节点知道子节点的DU的小区和第一节点的DU的哪个小区的载波配置相同，因此，控制节点可以向第一节点发送第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的信息，即发送第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的标识，频域资源集合列表中的至少之一。
其中，频域资源集合的列表包括至少一个频域资源集合。频域资源集合的配置参数包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。
子节点的DU的小区的频域资源集合是基于被关联的第一节点的DU的小区的子载波间隔特定的载波配置的，或者基于第一节点的DU的小区的(频域资源集合基于的)参考载波配置的，配置方式可以是上述方式1、方式2或者方式3，或者采用其他方式指示频域资源集合包含的资源单元。
通过这样一种实现方式，控制节点只需要为第一节点提供子节点的DU的小区的频域资源集合关联的第一节点的DU的小区标识即可，而无需提供子节点的DU的小区的载波配置，从而可以节省信令开销。
相应地，第一节点根据控制节点发送的第一节点的DU的小区的标识，即可获取子节点的DU的小区的频域资源集合配置是基于第一节点的DU的小区的哪个载波配置的，再结合控制节点为第一节点提供的子节点的DU的小区的频域资源集合配置，即可确定子节点的DU的小区的频域资源集合。
在一些实例中，子节点的DU的小区的频域资源集合与其关联的第一节点的DU的小区的频域资源集合可以相同，或者，第二参考载波与关联的第一节点的DU的小区的参考载波相同。第一节点根据关联的第一节点的DU的小区的标识和第一节点的DU的小区的频域资源集合，可以确定子节点的DU的小区的频域资源集合。
如果第一节点获取了关联的第一节点的DU的小区的标识，但没有获取子节点的DU的小区的频域资源集合的列表，则认为子节点的DU的小区的频域资源集合和被关联的第一节点的DU的小区的频域资源集合相同。
在一些实例中，控制节点为第一节点提供的子节点的DU的小区的资源配置还可以包括：子节点的DU的小区的频域资源集合配置是否与关联的第一节点的DU的小区的频域资源集合相同的指示信息。
可以理解的是，在本申请实施例中，控制节点为第一节点的子节点提供第一节点的子节点的DU的资源配置的方法与控制节点为第一节点提供第一节点的DU的资源配置的方法相同，这里不再赘述。
在一种示例中，对于小区的TDD(包含UL和DL)，可以采用上述方法获取TDD的至少一个频域资源集合。
在一种示例中，对于小区的DL，可以采用上述方法获取DL的至少一个频域资源集合。
在一种示例中，对于小区的UL，可以采用上述方法获取UL的至少一个频域资源集合。
在一种示例中，对于小区的SUL，可以采用上述方法获取SUL的至少一个频域资源集合。
在一种示例中，第一节点也可以获取控制节点发送的其他节点的DU的小区的资源配置，例如，第一节点和第二节点为同一个子节点提供服务，控制节点为第一节点提供第二节点的DU的小区的资源配置，控制节点为第二节点提供第一节点的DU的小区的资源配置，以便第一节点和第二节点知道彼此的DU的小区的资源配置，以避免资源冲突。
在一种示例中，第一节点还可以基于上述确定的频域资源集合配置频域资源属性。
在一些示例中，配置的频域资源属性可以包括时隙格式配置和资源属性配置中的至少一个。其中，时隙格式配置可以用于指示第一节点的DU的小区的时隙中符号的方向，包括时隙格式配置周期、时隙索引和choice{显示格式，隐式格式}中的至少之一。
其中，显式格式包括如下至少之一：时隙中符号方向的排列顺序指示，时隙中下行符号的个数，时隙中上行符号的个数。隐式格式包括如下至少之一，时隙格式索引。上述choice{显示格式，隐式格式}表示两种格式中的一种。即对于一个时隙，要么采用显示格式配置时隙中符号的方向，要么采用隐式格式配置时隙中符号的方向。
时隙中符号方向的排列顺序指示用于指示时隙中符号方向的排列顺序是“下行-灵活-上行(简记为DFU)”还是“上行-灵活-下行(简记为UFD)”。
时隙格式索引可以是一个时隙在一个时隙格式配置周期内或者固定时间长度(例如，固定时间为10毫秒，子载波间隔480kHz时，时隙数目为320)内的编号。一个时隙格式定义了一个时隙中符号的方向，可以预定义不同的时隙格式，每个时隙格式对应一个时隙格式索引。
在一些实例中，第一节点的DU可以假定没有被配置/指示方向的符号为灵活符号。
一个时隙通常由若干个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号组成，一个OFDM符号的长度由其参数集(Numerology)决定，参数集包括子载波间隔、循环前缀长度等。
资源属性配置用于配置第一节点的DU的小区的时频资源的属性。其中，频域粒度为频域资源集合，时域粒度为时隙，或者时隙中符号方向。
在一些实例中，一个频域资源集合和一个时隙的一个符号方向对应(或者构成)一个时频资源单元，或者一个频域资源集合和一个时隙对应(或者构成)一个时频资源单元。
在一些实例中，一个时频资源单元对应一种资源属性，资源属性包括如下至少之一：硬(Hard，H)，软(Soft，S)，不可用(unavailable或者not available，NA)。
例如，对于一个频域资源集合，针对时隙中不同的符号方向分别配置资源属性。资源属性包括如下至少之一：硬(Hard，H)，软(Soft，S)，不可用(unavailable或者not available，NA)。图5给出了一个小区载波的资源属性配置的示意图，该小区载波被划分成两个频域资源集合，一个频域资源集合和一个时隙构成的时频资源被配置一种资源属性；或者，一个频域资源集合和一个时隙中的一种符号方向构成的时频资源被配置一种资源属性。
硬资源表示第一节点的DU可以使用的资源；不可用资源表示第一节点的DU不可以使用的资源。软资源表示第一节点的DU在满足条件的情况下才可以使用的资源，例如，在第一节点通过信令显式指示了可以使用该软资源的情况下，或者在第一节点的DU自身隐式判定可以使用该软资源的情况下，或者在判定第一节点不使用该软资源的情况下；
此外，第一节点的DU发送或者接收特殊信号或信道的资源相当于被配置为Hard。发送或者接收的特殊信号或信道包括如下至少之一：发送同步信号和广播信道块(Synchronization Signal and Physical Broadcast Channel Block，SSB)，发送类型0物理下行控制信道(Physical Downlink Control Channel，PDCCH)公共搜索空间集合(可以承载在pdcchConfigSIB1，searchSpaceSIB1或者searchSpaceZero信元中)对应的PDCCH，接收物理随机接入信道(Physical Random Access Channel，PRACH)，接收调度请求(Scheduling Request，SR)，发送周期的信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)，发送系统消息(System Information，SI)，接收半静态上行传输，发送半静态下行传输。
在一种示例中，频域资源集合参考的子载波间隔和时隙格式配置参考的子载波间隔可以相同，即对应同一个参数。
在一种示例中，资源属性配置的频域粒度对应的子载波间隔为频域资源集合参考的子载波间隔；
在一种示例中，资源属性配置的时域粒度对应的子载波间隔为时隙格式配置参考的子载波间隔。
在一种示例中，如果时隙格式配置参考的子载波间隔和频域资源集合参考的子载波间隔不同，则根据两个参考的子载波间隔之间的关系和时隙格式配置，确定频域资源集合参考的子载波间隔对应的时隙格式，基于频域资源集合和确定的频域资源集合参考的子载波间隔对应的时隙格式配置资源属性。
值得说明的是，上述示例中频域资源集合参考的子载波间隔与参考载波的子载波间隔是同一个参数。
进一步地，在本申请实施例中，TDD小区的一个TDD载波对应一个资源配置信息。其中，一个TDD载波对应至少一个子载波间隔特定的载波。对于TDD小区，载波配置包含如下参数至少之一：载波频率信息，传输带宽，载波的列表(Carrier List)。
FDD小区的一个上行(Uplink，UL)载波和一个DL载波分别对应一个资源配置信息。其中，一个UL载波对应至少一个子载波间隔特定的载波，一个DL载波对应至少一个子载波间隔特定的载波。对于FDD小区，UL载波配置包含如下参数至少之一：载波频率信息，传输带宽，载波的列表，DL载波配置也包含如下参数至少之一：载波频率信息，传输带宽，载波的列表。
在一些实例中，如果第一节点的DU的小区配置了补充上行(Supplementary Uplink，SUL)载波，则SUL载波对应一个资源配置信息。其中，一个SUL载波对应至少一个子载波间隔特定的载波。对于SUL，SUL载波配置包含如下参数至少之一：载波频率信息，传输带宽，载波的列表。
其中，载波频率信息包括如下参数至少之一：参考点的频率位置，工作频段，频率是否偏移7.5kHz；
其中，载波的列表中的每个载波的配置包括如下参数至少之一：载波的子载波间隔，载波的最低频率与参考点之间的频率偏移，载波的带宽。
对于小区的TDD、上行、下行或者补充上行，载波的列表包含至少一个子载波间隔特定的载波。
需要说明的是，本申请实施例对实现本申请实施例方法的IAB节点、MT、DU等逻辑功能的实体不做限定，例如IAB节点可以理解为中继节点(Relay)或者施主节点，MT可以理解为终端实体，DU可以理解为基站实体等。
图6为本申请实施例提供的一种频域资源确定方法，该方法可以应用于控制节点，如图6所示，该方法包括但不限于以下步骤：
S601、控制节点向第一节点发送第一载波资源配置信息。
本申请实施例中的第一节点可以为IAB节点，控制节点与第一节点属于同一个IAB网络中，控制节点发送的第一载波资源配置信息为第一节点的资源配置信息。
第一载波资源配置信息用于确定第一节点的DU的小区的第一参考载波，第一参考载波用于确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
在一些示例中，第一载波资源配置信息可以包括如下至少之一：子载波间隔，频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合包含一个或多个资源单元，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，频域资源集 合的起始资源单元，连续资源单元数。基于第一载波资源配置信息中的子载波间隔，即可确定对应的第一节点的DU的小区的载波列表中子载波间隔特定的载波，根据该子载波间隔特定的载波以及频域资源集合的配置参数，可以确定频域资源集合。在一些示例中，配置上述频域资源集合的方式可以包括以下几种不同的方式，例如：
方式1：通过资源指示值(Resource indication value，RIV)指示频域资源集合。一个频域资源集合由至少一个资源单元组成，一个RIV可以指示一个频域资源集合的起始资源单元和连续资源单元数。
方式2：配置或者预定义频域资源集合的最大数目为N，则频域资源集合的数目为M，M＝min(N，N size)，定义M 1＝N sizemodM，K 1＝ceil(N size/M)，K 2＝floor(N size/M)，如果M 1＞0，那么频域资源集合m＝0,1,……，M 1-1，由索引为m*K 1+k的资源单元组成，k＝0,1,……，K 1-1。频域资源集合m＝M 1，M 1+1，……，M-1时，由索引为M 1·K 1+(m-M 1)·K 2+k的资源单元组成，其中，k＝0,1,……，K 2-1，N size为载波包含的资源单元数。
其中，mod为取模(或者取余)运算，cei()表示上取整运算，floor()表示下取整运算，m可以理解为频域资源集合索引，上述载波可以理解为频域资源集合配置所基于的载波(即参考载波)，上述方法仅是举例，也可以通过其他方法计算确定。
方式3：指示频域资源集合的起始资源单元索引和结束资源单元索引。频域资源集合由起始资源单元到结束资源单元之间的资源单元组成。
在一些实例中，资源单元可以按照频率升序编号。例如，载波的最低频率的资源单元编号为0，次低资源单元编号为1，以此类推。
上述方式中，频域资源集合的起始资源单元是相对参考载波的第一个资源单元定义的，即上述方式确定的频域资源集合的起始资源单元是偏移量，根据参考载波的起始资源单元相对参考点的偏移量(记为offset)，可以知道频域资源集合的起始资源单元相对参考点A的偏移量。因此，第一节点根据参考载波的频率位置和频域资源集合的配置，可以知道频域资源集合的起始频率位置，再根据频域资源集合包含的资源单元数，就可以知道频域资源集合的频率位置。例如，频域资源集合的起始资源单元为参考载波的资源单元S(即第S+1个资源单元)，参考载波的起始资源单元相对参考点的偏移量是offset，则频域资源集合的起始资源单元相对参考点的偏移量是offset+S个资源单元。再根据频域资源集合包含的资源单元数，就可以知道频域资源集合的频率位置。
上述资源单元可以为资源块(Resource Block，RB)，或者物理资源块，或者RB组，或者物理资源块组，或者，也可以为预编码资源块组(Precoding resource block group，PRG)。RB组或者PRG包含的资源块数目可以配置，或者预定义，或者与参考载波的带宽有关。
一个RB在频域上包含12个子载波，即RB的带宽为子载波间隔的12倍。
上述确定的频域资源集合可以按照从参考载波的低频率到高频率的顺序进行索引。
在一种示例中，控制节点发送的第一载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的DU的小区的载波的列表中的载波配置的。
或者，第一载波资源配置信息可以包括如下至少之一：第一参考载波配置，频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。频域资源集合可以基于第一参考载波配置，配置方式可以采用上述方式1、方式2、方式3中的 任意一种，当然，也可以采用其他方式指示频域资源集合包含的资源单元。
在一种示例中，控制节点还可以接收第一节点发送的第一节点的DU的小区的第一参考载波配置。例如，该第一参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一种示例中，第一载波资源配置信息可以包括频域资源集合列表，频域资源集合的列表包括至少一个频域资源集合。频域资源集合的配置参数包括如下至少之一：频域资源集合索引，频域资源集合的起始资源单元，连续资源单元数。其中，频域资源集合列表是基于第一节点发送给控制节点的第一节点的DU的小区的第一参考载波配置中的第一参考载波配置的。
例如，控制节点接收第一节点上报的第一节点的DU的小区的第一参考载波配置，该第一参考载波配置可以包括如下至少之一：
参考载波的子载波间隔，参考载波的最低频率(例如最低子载波)与参考点A之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在本申请实施例中，控制节点还可以向第一节点发送第二载波资源配置信息，该第二载波资源配置信息用于确定第一节点的子节点的DU的小区的第二参考载波，第二参考载波用于确定第一节点的子节点DU的小区的至少一个频域资源集合；其中，第二参考载波包括：第二起始资源块和从第二起始资源块开始的M个资源块，M为在第二载波资源配置信息中配置的，或者M为预定义的。
在一些示例中，上述第二载波资源配置信息包括第一节点的子节点DU的小区的资源配置信息和载波配置信息；
资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；
载波配置信息包括以下至少之一：ARFCN，工作频段，载波列表。
上述参数中，ARFCN可以提供参考点的频率位置，载波的参考资源块(公共资源块0)的最低子载波即为参考点。
载波列表包含至少一个子载波间隔特定的载波，子载波间隔特定的载波包括如下至少一个：载波的子载波间隔、载波的最低可用子载波与参考点A之间的频率偏移(例如，以物理资源块的数量表示(使用为该载波定义的子载波间隔)，取值范围0至2199)、载波带宽(例如，以物理资源块的数量表示(使用为该载波定义的子载波间隔IE)，取值范围0至275)。
在一种示例中，上述控制节点发送的第二载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的子节点的DU的小区的载波的列表中的载波配置的。
可选地，第二载波资源配置信息也可以包括如下至少之一：第二参考载波配置，频域资源集合列表；
其中，第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一种示例中，第二载波资源配置信息包括如下至少之一：第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的标识，频域资源集合列表。
例如，在控制节点获取第一节点和第一节点的子节点各自DU的小区的载波配合的情况下，控制节点知道子节点的DU的小区和第一节点的DU的哪个小区的载波配置相同，因此，控制节点可以向第一节点发送第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区，即发送第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的标识，频域资源集合列表中的至少之一。
在一些实例中，第一节点的子节点的DU的小区的频域资源集合与关联的第一节点的DU的小区的频域资源集合相同。
在一些实例中，第二参考载波与关联的第一节点的DU的小区的参考载波相同。
图7为本申请实施例提供的一种频域资源确定装置，如图7所示，该装置可以包括：获取模块701、确定模块702；
其中，获取模块，被设置成获取控制节点发送的第一载波资源配置信息；
确定模块，被设置成根据第一载波资源配置信息确定上述装置的DU的小区的第一参考载波；
确定模块，还被设置成第一参考载波确定上述装置的DU的小区的至少一个频域资源集合；
其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
在一些示例中，第一载波资源配置信息包括如下至少之一：子载波间隔，频域资源集合列表。
在一种示例中，上述确定模块，可以被设置成确定第一参考载波为上述装置的DU的小区的载波列表中载波的子载波间隔与第一载波资源配置信息中的子载波间隔相等的载波；
或者，确定模块，被设置成将第一载波资源配置信息中的子载波间隔对应的第一节点的DU的小区的载波列表中载波确定为第一参考载波；
或者，确定模块，被设置成将第一载波资源配置信息中的子载波间隔对应的第一节点的DU的小区的载波列表中载波的起始资源块确定为第一起始资源块；
或者，确定模块，被设置成确定第一起始资源块为装置的DU的小区的载波列表中载波的子载波间隔与第一载波资源配置信息中的子载波间隔相等的载波的起始资源块；
或者，确定模块，被设置成确定第一起始资源块为第一载波资源配置信息中的子载波间隔对应的第一节点的DU的小区的载波列表中载波的起始资源块。
在一种示例中，第一载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的DU的小区的载波的列表中的载波配置的。
在一种示例中，第一载波资源配置信息包括如下至少之一：第一参考载波配置，频域资源集合列表。
在一些实例中，如图8所示，上述装置还可以包括发送模块703；
发送模块，被设置成向控制节点发送上述装置的DU的小区的第一参考载波配置。
在一些示例中，第一参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
相应地，第一载波资源配置信息包括频域资源集合列表，频域资源集合列表是基于上述第一参考载波配置确定的。
在一种示例中，获取模块，还被设置成获取控制节点发送的第二载波资源配置信息；
确定模块，被设置成根据第二载波资源配置信息确定上述装置的子节点的DU的小区的第二参考载波；
确定模块，还可以基于第二参考载波确定上述装置的子节点的DU的小区的至少一个频域资源集合；
其中，第二参考载波包括：第二起始资源块和从第二起始资源块开始的M个资源块，M为在所述第二载波资源配置信息中配置的，或者M为预定义的。
在一种示例中，第二载波资源配置信息包括上述装置的子节点DU的小区的资源配置信 息和载波配置信息；
资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；
载波配置信息包括以下至少之一：ARFCN，工作频段，载波列表。
在一种示例中，确定模块，被设置成确定第二参考载波为上述装置的子节点的DU的小区的载波列表中载波的子载波间隔与资源配置信息中的子载波间隔相等的载波；或者，
确定模块，被设置成将资源配置信息中的子载波间隔对应的第一节点的子节点的DU的小区的载波列表中载波确定为第二参考载波；或者，
确定模块，被设置成将资源配置信息中的子载波间隔对应的第一节点的子节点的DU的小区的载波列表中载波的起始资源块确定为第二起始资源块；
或者，确定模块，被设置成确定第二起始资源块为上述装置的子节点的DU的小区的载波列表中载波的子载波间隔与资源配置信息中的子载波间隔相等的载波的起始资源块；
或者，确定模块，被设置成确定第二起始资源块为第二载波资源配置信息中的子载波间隔对应的第一节点的子节点的DU的小区的载波列表中载波的起始资源块。
在一种示例中，第二载波资源配置信息包括如下至少之一：第二参考载波配置，频域资源集合列表；
其中，第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一种示例中，第二载波资源配置信息包括如下至少之一：上述装置的子节点的DU的小区的资源配置关联的第一节点的DU的小区标识，频域资源集合列表。
在一些实例中，上述装置的子节点的DU的小区的频域资源集合与关联的该装置本身的DU的小区的频域资源集合相同。
在一些实例中，第二参考载波与关联的上述装置的DU的小区的参考载波相同。
本实施例提供的频域资源确定装置被设置成实现图3、图4所示实施例的频域资源确定方法，其实现原理和技术效果类似，此处不再赘述。
图9为本申请实施例提供的一种频域资源确定装置，如图9所示，该装置包括：发送模块901；
发送模块，被设置成向第一节点发送第一载波资源配置信息；
其中，第一载波资源配置信息用于确定第一节点的DU的小区的第一参考载波，第一参考载波用于确定第一节点的DU的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。
在一种示例中，第一载波资源配置信息包括如下至少之一：子载波间隔，频域资源集合列表。
在一种示例中，上述控制节点发送的第一载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的DU的小区的载波的列表中的载波配置的。
在一种示例中，第一载波资源配置信息包括如下至少之一：第一参考载波配置，频域资源集合列表。
如图10所示，在一些实例中，上述装置还可以包括接收模块902；
接收模块，被设置成接收第一节点发送的第一节点的DU的小区的第一参考载波配置，第一参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一些实例中，第一载波资源配置信息包括频域资源集合列表，频域资源集合列表是基 于第一节点发送给上述第一参考载波配置确定的。
在一种示例中，发送模块还被设置成向第一节点发送第二载波资源配置信息。
第二载波资源配置信息用于确定第一节点的子节点的DU的小区的第二参考载波，第二参考载波用于确定第一节点的子节点DU的小区的至少一个频域资源集合；
其中，第二参考载波包括：第二起始资源块和从第二起始资源块开始的M个资源块，M为在第二载波资源配置信息中配置的，或者M为预定义的。
在一种示例中，第二载波资源配置信息包括第一节点的子节点DU的小区的资源配置信息和载波配置信息；其中，资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；载波配置信息包括以下至少之一：ARFCN，工作频段，载波列表。
在一种示例中，上述控制节点发送的第二载波资源配置信息可以包括如下至少之一：频域资源集合列表。
其中，频域资源集合列表包括至少一个频域资源集合，频域资源集合的配置参数可以包括如下至少之一：频域资源集合索引，子载波间隔，频域资源集合的起始资源单元，连续资源单元数。其中，每个频域资源集合是基于该频域资源集合的配置参数中的子载波间隔对应的第一节点的子节点的DU的小区的载波的列表中的载波配置的。
在一种示例中，第二载波资源配置信息包括如下至少之一：第二参考载波配置，频域资源集合列表；
其中，第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
在一种示例中，第二载波资源配置信息包括如下至少之一：第一节点的子节点的DU的小区的资源配置关联的第一节点的DU的小区的标识，频域资源集合列表。
在一些实例中，第一节点的子节点的DU的小区的频域资源集合与关联的第一节点的DU的小区的频域资源集合相同。
在一些实例中，第二参考载波与关联的第一节点的DU的小区的参考载波相同。
本实施例提供的频域资源确定装置被设置成实现图6所示实施例的频域资源确定方法，其实现原理和技术效果类似，此处不再赘述。
图11为一实施例提供的一种通信节点的结构示意图，如图11所示，该节点包括处理器1101和存储器1102；节点中处理器1101的数量可以是一个或多个，图11中以一个处理器1101为例；节点中的处理器1101和存储器1102可以通过总线或其他方式连接，图11中以通过总线连接为例。
存储器1102作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请图3、图4或图6实施例中的频域资源确定方法对应的程序指令/模块(例如，频域资源确定装置中的获取模块701、确定模块702，或者发送模块901)。处理器1101通过运行存储在存储器1102中的软件程序、指令以及模块实现上述的频域资源确定方法。
存储器1102可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据机顶盒的使用所创建的数据等。此外，存储器1102可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
在一种示例中，在可能的情况下，上述节点中的处理器也可以通过其内部的逻辑电路、门电路等硬件电路实现上述的频域资源确定方法。
本申请实施例还提供了一种可读写存储介质，用于计算机存储，该存储介质存储有一个或者多个程序，一个或者多个程序可被一个或者多个处理器执行，以执行上述实施例中的一种频域资源确定方法。
本申请实施例提供了一种频域资源确定方法、装置、节点和存储介质，该方法包括：第一节点获取控制节点发送的第一载波资源配置信息；第一节点根据第一载波资源配置信息确定第一节点的DU的小区的第一参考载波；第一节点基于第一参考载波确定第一节点的DU 的小区的至少一个频域资源集合；其中，第一参考载波包括：第一起始资源块和从第一起始资源块开始的N个资源块，N为在第一载波资源配置信息中配置的，或者N为预定义的。通过这种实现方式可以实现基于载波的频域资源划分。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上参照附图仅说明了本申请的一些实施例而已，并非因此局限本申请的权利范围。本领域技术人员不脱离本申请的范围和实质内所作的任何修改、等同替换和改进，均应在本申请的权利范围之内。

Claims (30)

  1. 一种频域资源确定方法，包括：
    第一节点获取控制节点发送的第一载波资源配置信息；
    所述第一节点根据所述第一载波资源配置信息确定所述第一节点的DU的小区的第一参考载波；
    所述第一节点基于所述第一参考载波确定所述第一节点的DU的小区的至少一个频域资源集合；
    其中，所述第一参考载波包括：第一起始资源块和从所述第一起始资源块开始的N个资源块，N为在所述第一载波资源配置信息中配置的，或者N为预定义的。
  2. 根据权利要求1所述的方法，其中，所述第一载波资源配置信息包括如下至少之一：子载波间隔，频域资源集合列表。
  3. 根据权利要求2所述的方法，其中，根据所述第一载波资源配置信息中的子载波间隔确定第一节点的DU的小区的第一参考载波，包括：
    确定所述第一参考载波为所述第一节点的DU的小区的载波列表中载波的子载波间隔与所述第一载波资源配置信息中的子载波间隔相等的载波；或者，
    确定第一起始资源块为所述第一节点的DU的小区的载波列表中载波的子载波间隔与所述第一载波资源配置信息中的子载波间隔相等的载波的起始资源块。
  4. 根据权利要求1所述的方法，其中，所述第一载波资源配置信息包括如下至少之一：第一参考载波配置，频域资源集合列表。
  5. 据权利要求1所述的方法，还包括：
    所述第一节点向控制节点发送所述第一节点的DU的小区的第一参考载波配置。
  6. 根据权利要求4或5所述的方法，其中，所述第一参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
  7. 根据权利要求4或5所述的方法，其中，所述第一载波资源配置信息包括频域资源集合列表，所述频域资源集合列表是基于所述第一参考载波配置确定的。
  8. 根据权利要求1所述的方法，还包括：
    所述第一节点获取所述控制节点发送的第二载波资源配置信息；
    所述第一节点根据所述第二载波资源配置信息确定所述第一节点的子节点的DU的小区的第二参考载波；
    所述第一节点基于所述第二参考载波确定第一节点的子节点的DU的小区的至少一个频域资源集合；
    其中，所述第二参考载波包括：第二起始资源块和从所述第二起始资源块开始的M个资源块，M为在所述第二载波资源配置信息中配置的，或者M为预定义的。
  9. 根据权利要求8所述的方法，其中，所述第二载波资源配置信息包括第一节点的子节点的DU的小区的资源配置信息和载波配置信息；
    所述资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；
    所述载波配置信息包括以下至少之一：绝对无线频道编号ARFCN，工作频段，载波列表。
  10. 根据权利要求9所述的方法，其中，根据所述资源配置信息中的子载波间隔确定第一节点的子节点的DU的小区的第二参考载波包括：
    确定所述第二参考载波为所述第一节点的子节点的DU的小区的载波列表中载波的子载波间隔与所述资源配置信息中的子载波间隔相等的载波；或者，
    确定第二起始资源块为所述第一节点的子节点的DU的小区的载波列表中载波的子载波间隔与所述资源配置信息中的子载波间隔相等的载波的起始资源块。
  11. 根据权利要求8所述的方法，其中，所述第二载波资源配置信息包括如下至少之一： 第二参考载波配置，频域资源集合列表；
    其中，所述第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
  12. 根据权利要求8所述的方法，其中，所述第二载波资源配置信息包括如下至少之一：所述第一节点的子节点的DU的小区的资源配置关联的所述第一节点的DU的小区的标识，频域资源集合列表。
  13. 根据权利要求12所述的方法，其中，所述第一节点的子节点的DU的小区的频域资源集合与关联的所述第一节点的DU的小区的频域资源集合相同。
  14. 根据权利要求12所述的方法，其中，所述第二参考载波与关联的所述第一节点的DU的小区的参考载波相同。
  15. 一种频域资源确定方法，包括：
    控制节点向第一节点发送第一载波资源配置信息；
    所述第一载波资源配置信息用于确定所述第一节点的DU的小区的第一参考载波，所述第一参考载波用于确定所述第一节点的DU的小区的至少一个频域资源集合；
    其中，所述第一参考载波包括：第一起始资源块和从所述第一起始资源块开始的N个资源块，N为在所述第一载波资源配置信息中配置的，或者N为预定义的。
  16. 根据权利要求15所述的方法，其中，所述第一载波资源配置信息包括如下至少之一：子载波间隔，频域资源集合列表。
  17. 根据权利要求15所述的方法，其中，所述第一载波资源配置信息包括如下至少之一：第一参考载波配置，频域资源集合列表。
  18. 根据权利要求15所述的方法，还包括：
    所述控制节点接收所述第一节点发送的所述第一节点的DU的小区的第一参考载波配置。
  19. 根据权利要求17或18所述的方法，其中，所述第一参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
  20. 根据权利要求17或18所述的方法，其中，所述第一载波资源配置信息包括频域资源集合列表，所述频域资源集合列表是基于所述第一参考载波配置确定的。
  21. 根据权利要求15所述的方法，还包括：
    所述控制节点向所述第一节点发送第二载波资源配置信息；
    所述第二载波资源配置信息用于确定所述第一节点的子节点的DU的小区的第二参考载波，所述第二参考载波用于确定所述第一节点的子节点DU的小区的至少一个频域资源集合；
    其中，所述第二参考载波包括：第二起始资源块和从所述第二起始资源块开始的M个资源块，M为在所述第二载波资源配置信息中配置的，或者M为预定义的。
  22. 根据权利要求21所述的方法，其中，所述第二载波资源配置信息包括第一节点的子节点DU的小区的资源配置信息和载波配置信息；
    所述资源配置信息包括以下至少之一：子载波间隔，频域资源集合列表；
    所述载波配置信息包括以下至少之一：绝对无线频道编号ARFCN，工作频段，载波列表。
  23. 根据权利要求21所述的方法，其中，所述第二载波资源配置信息包括如下至少之一：第二参考载波配置，频域资源集合列表；
    其中，所述第二参考载波配置包括如下至少之一：参考载波的子载波间隔，参考载波的最低频率与参考点之间的频率偏移，参考载波的带宽，参考载波对应的频段，参考点的频率位置。
  24. 根据权利要求21所述的方法，其中，所述第二载波资源配置信息包括如下至少之一：所述第一节点的子节点的DU的小区的资源配置关联的所述第一节点的DU的小区的标识，频域资源集合列表。
  25. 根据权利要求24所述的方法，其中，所述第一节点的子节点的DU的小区的频域资源集合与关联的所述第一节点的DU的小区的频域资源集合相同。
  26. 根据权利要求24所述的方法，其中，所述第二参考载波与关联的所述第一节点的DU的小区的参考载波相同。
  27. 一种频域资源确定装置，包括：
    获取模块，被设置成获取控制节点发送的第一载波资源配置信息；
    确定模块，被设置成根据所述第一载波资源配置信息确定所述装置的DU的小区的第一参考载波；
    所述确定模块，还被设置成根据所述第一参考载波确定所述装置的DU的小区的至少一个频域资源集合；
    其中，所述第一参考载波包括：第一起始资源块和从所述第一起始资源块开始的N个资源块，N为在所述第一载波资源配置信息中配置的，或者N为预定义的。
  28. 一种频域资源确定装置，包括：
    发送模块，被设置成向第一节点发送第一载波资源配置信息；
    所述第一载波资源配置信息用于确定所述第一节点的DU的小区的第一参考载波，所述第一参考载波用于确定所述第一节点的DU的小区的至少一个频域资源集合；
    其中，所述第一参考载波包括：第一起始资源块和从所述第一起始资源块开始的N个资源块，N为在所述第一载波资源配置信息中配置的，或者N为预定义的。
  29. 一种通信节点，包括：处理器，其中，所述处理器执行计算机程序时，实现如权利要求1-14任一项所述的频域资源确定方法，或者，如权利要求15-26任一项所述的频域资源确定方法。
  30. 一种可读写存储介质，存储有计算机程序，其中，所述计算机程序被处理器执行时实现如权利要求1-14任一项所述的频域资源确定方法，或者，如权利要求15-26任一项所述的频域资源确定方法。
PCT/CN2022/083035 2021-04-01 2022-03-25 频域资源确定方法、装置、节点和存储介质 WO2022206598A1 (zh)

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EP22778780.1A EP4319075A1 (en) 2021-04-01 2022-03-25 Frequency domain resource determining method and apparatus, node and storage medium
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