WO2022037609A1 - 数据传输方法和装置、通信节点及存储介质 - Google Patents

数据传输方法和装置、通信节点及存储介质 Download PDF

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WO2022037609A1
WO2022037609A1 PCT/CN2021/113246 CN2021113246W WO2022037609A1 WO 2022037609 A1 WO2022037609 A1 WO 2022037609A1 CN 2021113246 W CN2021113246 W CN 2021113246W WO 2022037609 A1 WO2022037609 A1 WO 2022037609A1
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channel
mapping
data
type
resource
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English (en)
French (fr)
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张钉铭
刘星
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Sanechips Technology Co Ltd
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Sanechips Technology Co Ltd
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Priority to EP21857701.3A priority Critical patent/EP4203368A4/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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) or DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the present application relates to the technical field of wireless communication networks, and in particular, to a data transmission method and apparatus, a communication node, and a storage medium.
  • the data to be transmitted must be mapped to a resource element (Resource Element, RE) of a frequency domain resource network for transmission.
  • the Third Generation Partner Plan (3GPP) realizes the mapping of frequency domain resources and data transmission by defining different physical channels and logical channels.
  • LTE Long Term Evolution
  • 5G Next Generation Wireless Systems
  • NR New Radio
  • resource mapping requirements Different from the implementation method, under different protocols or different bandwidths, the definition types of physical channels and the resource mapping methods of each channel are diverse, resulting in resource mapping and data transmission under a specific protocol or specific bandwidth cannot be applied to other protocols. or other bandwidth scenarios, the computational complexity of resource mapping for each channel is relatively high, which in turn affects the efficiency of data transmission, and cannot meet the communication requirements of real-time switching in different scenarios.
  • the embodiment of the present application provides a data transmission method, including:
  • the virtual channel including at least one of a first type of channel and a second type of channel
  • the data of the virtual channel is mapped to the corresponding resource block for transmission, and each resource block includes a set number of resource unit.
  • the embodiment of the present application also provides a data transmission device, including:
  • a channel definition module configured to determine a virtual channel according to the resource unit mapping type, the virtual channel including at least one of a first type of channel and a second type of channel;
  • the mapping transmission module is configured to map the data of the virtual channel to the corresponding resource block for transmission according to the mapping relationship between the virtual channel and each resource block within the bandwidth range, and each resource block includes a set number of resource unit.
  • the embodiment of the present application also provides a communication node, including:
  • a storage device configured to store one or more computer programs
  • the one or more computer programs when executed by the one or more processors, cause the one or more processors to implement the above-mentioned data transmission method.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the foregoing data transmission method is implemented.
  • FIG. 1 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a mapping relationship between a second type of channel and a resource block provided by an embodiment of the present application
  • FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of mapping data segments of multiple first-type channels to different resource units according to an embodiment of the present application
  • mapping data of a virtual channel to a corresponding resource block according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of a data transmission apparatus provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a hardware structure of a communication node according to an embodiment of the present application.
  • a communication node (such as a base station) on the network side communicates with various physical channels (such as Physical Downlink Shared Channel (PDSCH), Physical Downlink Control Channel (PDCCH), physical A broadcast channel (Physical Broadcast Channel, PBCH, etc.) allocates logical resource blocks to determine the resource mapping table for each channel.
  • PDSCH Physical Downlink Shared Channel
  • PDCCH Physical Downlink Control Channel
  • PBCH Physical Broadcast Channel
  • DMRS Demodulation Reference Signal
  • Phase offset measurement of data Phase offset measurement of data
  • a phase tracking reference signal also needs to be inserted into the physical channel; in order to complete the measurement of channel state information and beam management functions, a cell reference signal (Cell Reference Signal, CRS) and channel state information are also introduced.
  • Cell Reference Signal Cell Reference Signal
  • Reference signal Channel-state Information Reference Signal, CSI-RS
  • the above-mentioned various physical channels and physical signals have different definitions and resource mapping methods under different protocols and different bandwidths. If a resource mapping method is defined for each physical channel and physical signal, the computational complexity is high and cannot be satisfied. Communication requirements for real-time switching in different scenarios.
  • a data transmission method is provided, which can be applied to a communication node, where the communication node is a node with a resource allocation function in a wireless communication system, such as a network side device, a network management device, a base station, or a service node. , centralized control unit, etc.
  • the method defines two types of virtual channels, and only needs to transmit the corresponding data through the corresponding resource blocks according to the mapping relationship between the two types of virtual channels and resource blocks, which reduces the complexity of resource mapping and can efficiently transmit data.
  • FIG. 1 is a flowchart of a data transmission method provided by an embodiment of the present application. As shown in FIG. 1 , the data transmission method provided in this embodiment includes step 110 and step 120.
  • a virtual channel is determined according to the resource unit mapping type, and the virtual channel includes at least one of a first type of channel and a second type of channel.
  • the virtual channel is a channel that is abstracted by reclassifying the physical channels and physical signals in the wireless communication system according to different RE mapping types.
  • the first type of channel can also be understood as a virtual traffic channel, which is used to transmit different business data; physical signals (such as DMRS, CRS, PTRS, etc.) are usually mapped to discontinuous resource units in the form of flower arrangements, which can be used as the second type of channel.
  • the second type of channel can also be understood as a virtual reference channel, used for Reference information required in the process of channel state measurement, channel quality measurement, beam management, etc. is transmitted.
  • step 120 according to the mapping relationship between the virtual channel and each resource block within the bandwidth range, map the data of the virtual channel to corresponding resource blocks for transmission, and each resource block includes a set number of resources unit.
  • the mapping relationship between the first-type channel and the second-type channel and the resource block is respectively defined, and the process of resource mapping is to correspond the data of the virtual channel to the resource unit in the resource block according to the mapping relationship to realize the data
  • the same resource element mapping type can be used for the same type of channel, and data is transmitted through the resource elements in the corresponding resource blocks, thereby reducing the complexity of resource mapping.
  • the bandwidth range refers to the entire bandwidth corresponding to one downlink symbol, the bandwidth range includes multiple resource blocks, and each resource block includes a set number of resource units.
  • the virtual traffic channel and the virtual reference channel can be understood as the interface between the hardware accelerator and the software, and the communication node makes the mapping between the channel and the resource more flexible by defining the first type channel and the second type channel.
  • the mapping relationship between virtual channels and resources is predefined according to antenna ports, beams, resource configurations, and the like.
  • the data transmission method of this embodiment divides the channels into two types, and only needs to transmit the corresponding data through the corresponding resource blocks according to the mapping relationship between the two types of virtual channels and resource blocks, which reduces the complexity of resource mapping and can reduce the delay time. It can complete the resource mapping of any physical channel or physical signal at the same time, so as to complete the frequency domain resource mapping under different protocols and different bandwidths, and then realize the efficient transmission of data.
  • the two types of virtual channels are also scalable. With the change of protocols and application scenarios, even if a new physical channel or physical signal is introduced into the wireless communication system, it only needs to be abstracted as the first one according to the resource unit mapping type.
  • the class channel or the second class channel can implement resource mapping and data transmission according to the mapping relationship corresponding to the virtual channel.
  • the resource element mapping types include contiguous mapping and non-contiguous mapping
  • Step 110 includes: using a physical channel whose resource element mapping type is continuous mapping as a first-type channel; and using a physical signal whose resource element mapping type is non-continuous mapping as a second-type channel.
  • continuous mapping refers to mapping data of a type of channel to one or more groups of continuous resource elements in a resource block for transmission.
  • one resource block includes 12 resource elements (RE0 to RE11)
  • the continuous mapping is, for example, that the data of one type of channel is mapped to RE0 to RE9 in the resource block.
  • Continuous mapping also includes sparse mapping, that is, it is allowed to have unmapped resource units in continuous resource units according to a certain rule, for example, the data of a type of channel is mapped to RE0 to RE3, RE8 to RE11, RE4 to Data for such channels is not mapped on RE7.
  • Discontinuous mapping refers to that the data of a type of channel is mapped to discontinuous resource units in a resource block for transmission, for example, mapped to RE0, RE3, RE8, etc. in the resource block.
  • FIG. 2 is a schematic diagram of a mapping relationship between a second type of channel and a resource block according to an embodiment of the present application.
  • virtual reference channel 0 and virtual reference channel 1 are two second-type channels.
  • the RB corresponding to virtual reference channel 0 and the RB corresponding to virtual reference channel 1 partially overlap.
  • the RB includes 12 REs, and the REs are sequentially numbered from bottom to top as RE0 to RB11 in the mapping pattern.
  • the data of virtual reference channel 0 are mapped to RE1, RE4, and RE9 (REs shown by vertical lines in the mapping pattern) respectively;
  • the data of the virtual reference channel 1 are respectively mapped to RE0, RE3, and RE8 (REs indicated by slashes in the mapping pattern).
  • the data of virtual reference channel 0 and virtual reference channel 1 can be mapped through different resource elements in the RB.
  • the data transmission method before step 120, the data transmission method further includes:
  • Step 100 Determine each orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol of the resource unit as a downlink symbol according to the radio frame format.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the communication node on the network side determines whether the OFDM symbol is a downlink symbol according to the radio frame format. Resource mapping and data transmission of virtual channels are performed within the OFDM symbol. If the OFDM symbol is an uplink symbol, resource mapping and data transmission are not required.
  • step 120 includes: sequentially for each resource block within the bandwidth range, reading the data of the virtual channel corresponding to the resource block; mapping the read data to the corresponding resource unit in the resource block to transmit.
  • the resource mapping within the entire bandwidth range of one OFDM symbol is completed in units of resource blocks.
  • the mapping relationship of the virtual channel in each RB can be obtained sequentially. Exemplarily, for RB0, if RB0 corresponds to a first-type channel, read the data of the first-type channel and map it to the corresponding resource unit in RB0 for transmission; for RB1, if RB1 corresponds to a first-type channel If there are one type of channel and one type of second channel, the data of the first type of channel and the data of the second type of channel are respectively read, and mapped to the corresponding resource units in RB1 for transmission; and so on, until the All RBs within the entire bandwidth range of one OFDM symbol complete resource mapping and data transmission, and then for the next OFDM symbol, according to the above method, complete resource mapping and data transmission for each resource block within the bandwidth range in turn.
  • FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present disclosure. As shown in FIG. 3 , the data transmission method includes the following steps 210 to 260 .
  • Step 210 Use a physical channel whose resource element mapping type is continuous mapping as the first type of channel.
  • Step 220 Use the physical signal whose resource element mapping type is discontinuous mapping as the second type of channel.
  • Step 230 For the i-th resource block within the bandwidth range, read the data of the virtual channel corresponding to the resource block.
  • mapping relationship between the channels of the first type, the channels of the second type and the resource blocks is predefined by the communication node or determined according to a protocol.
  • Step 240 Map the read data to the corresponding resource unit in the resource block for transmission.
  • Step 260 the resource mapping and data transmission end.
  • step 240 includes: in the case that one resource block corresponds to data of multiple first-type channels, the data segments of each first-type channel are mapped to different resource units in the resource block for transmission .
  • one RE in the RB can only correspond to the data of one first-type channel. If one RE corresponds to the data of multiple first-type channels, only one first-type channel can be mapped to this RE. data, discarding data from other first-class channels.
  • FIG. 4 is a schematic diagram of mapping data segments of multiple first-type channels to different resource units according to an embodiment of the present application.
  • virtual traffic channel 0 and virtual traffic channel 1 are two different first-type channels.
  • the REs in the middle part correspond to the data and virtual traffic channels of virtual traffic channel 0. Traffic channel 1 data.
  • this part of REs can be used to transmit data of one of the virtual traffic channels according to the setting principle. For example, if different first-type channels have different priorities, this part of REs is only used to transmit the highest priority. data of the virtual traffic channel.
  • the priority of virtual traffic channel 0 is higher than the priority of virtual traffic channel 1, as shown in FIG. 4 , the REs of the RB are divided into three segments from bottom to top, which are respectively used to transmit data of virtual traffic channel 1, Data of virtual traffic channel 0, data of virtual traffic channel 1.
  • the data of one first-type channel may also be reserved according to other principles.
  • all REs corresponding to virtual traffic channel 0 belong to REs corresponding to virtual traffic channel 1.
  • the overlapping REs transmit the data of the virtual traffic channel 0, while the REs in other parts transmit the data of the virtual traffic channel 1.
  • it can be used to transmit data of a virtual traffic channel in which the total number of corresponding REs is small, or the overlapping REs account for a large proportion of the total number of REs corresponding to the virtual channel.
  • mapping the read data to the corresponding resource units in the resource block for transmission includes: in the case that one resource block corresponds to data of multiple second-type channels, each second-type channel The data is mapped to the resource units in the resource block according to the mapping pattern for transmission.
  • the REs in the RB may correspond to data of multiple second-type channels, and the data of each second-type channel is mapped to the corresponding REs in the RB according to the mapping pattern in a flower arrangement.
  • the mapping pattern of the second type of channel may be defined by the communication node or by the protocol.
  • the mapping patterns of the second-type channels do not have overlapping REs. If there are overlapping REs in the mapping patterns of multiple second-type channels, for this RE, only the data of one second-type channel is mapped, and the data of other second-type channels are discarded.
  • the virtual channel includes the first type of channel and/or the second type of channel, and there may be one or more virtual channels.
  • the priority of the different virtual channels can be defined by the communication node or by the protocol.
  • FIG. 5 is a schematic diagram of mapping data of a virtual channel to a corresponding resource block according to an embodiment of the present application. Take 20 RBs as an example for description. First, define the following virtual channels according to the resource unit mapping method:
  • Virtual Traffic Channel 0 corresponds to RB8 to RB13;
  • Virtual Traffic Channel 1 corresponds to RB0 to RB19;
  • Virtual Reference Channel 0 corresponds to RB1 to RB9;
  • DM-RS Virtual Reference Channel 1
  • the priority of virtual traffic channel 0 is greater than the priority of virtual traffic channel 1.
  • the resource mapping process is as follows:
  • For RB0 analyze the virtual channel, determine that the 12 REs of RB0 are all used to map the data of virtual traffic channel 1, then read the data of virtual traffic channel 1, and sequentially map on RE0 to RE11 of RB0;
  • RB1 For RB1, analyze the virtual channel, determine that RB1 is used to map the data of virtual traffic channel 1 and virtual reference channel 0, and determine that there are 3 REs (shown as slashes) in RB1 for mapping according to the mapping pattern of virtual reference channel 0
  • the data of virtual reference channel 0, the remaining 9 REs can be used to map the data of virtual traffic channel 1, respectively read the data of virtual traffic channel 1 and virtual reference channel 0 and complete the resource mapping to RB1;
  • One RE (indicated by vertical lines) is used for mapping data of virtual reference channel 1, and there are 6 REs that can be used for mapping data of virtual traffic channel 0, respectively read data of each virtual channel and complete resource mapping of RB8.
  • the resource mapping of all RBs within the bandwidth range is sequentially completed, so that the data of the virtual channel is mapped to the REs in the corresponding RBs for transmission.
  • the data transmission method of this embodiment implements resource mapping and data transmission in units of resource blocks by defining two types of virtual channels, and according to the mapping relationship between each type of virtual channels and resource units in resource blocks.
  • effective resource mapping can also be achieved, the flexibility of resource mapping is improved, the complexity of resource mapping is reduced, and the data transmission efficiency is further improved.
  • FIG. 6 is a schematic structural diagram of a data transmission apparatus provided by an embodiment of the present application. As shown in FIG. 6 , the data transmission apparatus includes: a channel definition module 310 and a mapping transmission module 320 .
  • the channel definition module 310 is configured to determine a virtual channel according to the resource unit mapping type, where the virtual channel includes at least one of a first type of channel and a second type of channel.
  • the mapping transmission module 320 is configured to map the data of the virtual channel to corresponding resource blocks for transmission according to the mapping relationship between the virtual channel and each resource block within the bandwidth range, and each resource block includes a set number of resource unit.
  • the data transmission apparatus of this embodiment By dividing the channels into two types, the data transmission apparatus of this embodiment only needs to transmit the corresponding data through the corresponding resource blocks according to the mapping relationship between the two types of channels and the resource blocks, which reduces the complexity of resource mapping and realizes efficient transmission. data.
  • the resource element mapping types include contiguous mapping and non-contiguous mapping
  • the channel definition module 310 is set to:
  • a physical signal whose resource element mapping type is discontinuous mapping is used as the second type of channel.
  • the data transmission device may further include:
  • the downlink determination module is configured to determine, according to the radio frame format, each OFDM symbol of the resource unit as a downlink symbol before mapping the data of the virtual channel to the corresponding resource block for transmission.
  • the map transfer module 320 is configured to:
  • the read data is mapped to the corresponding resource unit in the resource block for transmission.
  • the map transfer module 320 is configured to:
  • the data segments of each of the first-type channels are mapped to different resource units in the resource block for transmission.
  • the map transfer module 320 is configured to:
  • the data of each second-type channel is mapped to resource units in the resource block according to the mapping pattern for transmission.
  • the map transfer module 320 is configured to:
  • the first type of channel is at least one
  • the priorities of the channels of the first type are different.
  • the data transmission device proposed in this embodiment belongs to the same concept as the data transmission method proposed in the above-mentioned embodiment.
  • the embodiment of the present application also provides a communication node.
  • the data transmission method of the embodiment of the present application may be executed by the data transmission apparatus of the embodiment of the present application, and the data transmission apparatus may be implemented by means of software and/or hardware, and be integrated in the communication node.
  • the communication node is a node with a resource allocation function in a wireless communication system, and may be, for example, a network-side device, a base station, a service node, a centralized control unit, or the like.
  • FIG. 7 is a schematic diagram of a hardware structure of a communication node according to an embodiment of the present application.
  • the communication node provided in this embodiment includes: a processor 410 and a storage device 420 .
  • one processor 410 is used as an example.
  • the processor 410 and the storage device 420 may be connected by a bus or in other ways.
  • FIG. 7 uses a bus connection as an example.
  • the storage device 420 may store one or more computer programs, and when the one or more computer programs are executed by the one or more processors 410, the one or more processors 410 can implement the above-described embodiments. data transfer method.
  • the storage device 420 in the communication node may be used to store one or more computer programs, and the computer programs may be software programs, computer-executable programs, and modules, such as those in the embodiments of the present application.
  • Program instructions/modules corresponding to the data transmission method include: a channel definition module 310 and a mapping transmission module 320).
  • the processor 410 executes various functional applications and data processing of the communication node by running the software programs, instructions and modules stored in the storage device 420, that is, to implement the data transmission method in the above method embodiments.
  • the storage device 420 mainly includes a program storage area and a data storage area, and the program storage area can store the application program required by the operating system and at least one function; the data storage area can store the data created according to the use of the device, etc. resource element mapping type, virtual channel data, etc.). Additionally, storage device 420 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. In some examples, storage device 420 may further include memory located remotely from processor 410, which remote memory may be connected to the communication node through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the following operations are implemented: determining a virtual channel according to the resource unit mapping type, where the virtual channel includes a first type of channel and a second type of channel. at least one of the two types of channels; according to the mapping relationship between the virtual channel and each resource block within the bandwidth range, map the data of the virtual channel to the corresponding resource block for transmission, and each resource block includes a set of A certain number of resource units.
  • the communication node proposed in this embodiment belongs to the same concept as the data transmission method proposed in the above-mentioned embodiment.
  • the embodiments of the present application further provide a computer-readable storage medium containing computer-executable instructions, and the computer-executable instructions, when executed by a computer processor, execute the data transmission method of the embodiments of the present application, and the data transmission method includes: according to The resource unit mapping type determines a virtual channel, and the virtual channel includes at least one of the first type channel and the second type channel; according to the mapping relationship between the virtual channel and each resource block within the bandwidth range, the virtual channel is The data of the channel is mapped into corresponding resource blocks for transmission, and each resource block includes a set number of resource units.
  • the present application can be implemented by means of software and general hardware, and can also be implemented by hardware.
  • the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium (such as a floppy disk of a computer, a read-only memory (Read-Only Memory, ROM), a random Access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc.), including multiple instructions to make a computer device (which can be a personal computer, server, or network device, etc.) to execute the application
  • a computer-readable storage medium such as a floppy disk of a computer, a read-only memory (Read-Only Memory, ROM), a random Access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc.
  • a computer device which can be a personal computer, server, or network device, etc.
  • the block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
  • Computer programs can be stored on memory.
  • the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology such as, but not limited to, read only memory (ROM), random access memory (RAM), optical memory devices and systems (Digital Versatile Discs). DVD or CD disc) etc.
  • Computer-readable storage media may include non-transitory storage media.
  • the processor may be of any type suitable for the local technical environment, such as, but not limited to, a general purpose computer, special purpose computer, microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (FGPA), and A processor based on a multi-core processor architecture.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FGPA programmable logic device

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Abstract

本申请提供一种数据传输方法、一种数据传输装置、一种通信节点及一种计算机可读存储介质。所述数据传输方法包括：根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；以及根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。

Description

数据传输方法和装置、通信节点及存储介质
相关申请的交叉引用
本申请要求于2020年8月21日提交的中国专利申请NO.202010850774.9的优先权，该中国专利申请的内容通过引用的方式整体合并于此。
技术领域
本申请涉及无线通信网络技术领域，具体地，涉及数据传输方法和装置、通信节点及存储介质。
背景技术
在无线通信系统中，待传输的数据都要映射到频域资源网的资源单元(Resource Element，RE)上进行传输。第三代移动通信伙伴(Third Generation Partner Plan，3GPP)通过定义不同的物理信道和逻辑信道来实现频域资源的映射以及数据传输。在基于不同技术实现的通信系统中，例如长期演进(Long Term Evolution，LTE)、下一代移动通信系统(Fifth generation Wireless Systems，5G)、新空口(New Radio，NR)系统中，资源映射的要求与实现方法都有不同，在不同协议或不同带宽下，物理信道的定义类型以及每种信道的资源映射方式多样，导致一种特定协议下或特定带宽的资源映射和数据传输无法适用于其他协议或其他带宽的场景，使得每种信道的资源映射的计算复杂度较高，进而影响数据传输的高效性，不能满足不同场景实时切换的通信需求。
公开内容
本申请实施例提供一种数据传输方法，包括：
根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一 类信道和第二类信道中的至少之一；以及
根据所述虚拟信道与带宽范围内的每个资源块(Resource Block，RB)的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
本申请实施例还提供了一种数据传输装置，包括：
信道定义模块，设置为根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；以及
映射传输模块，设置为根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
本申请实施例还提供了一种通信节点，包括：
一个或多个处理器；以及
存储装置，配置为存储一个或多个计算机程序；
所述一个或多个计算机程序被所述一个或多个处理器执行时，使得所述一个或多个处理器实现上述的数据传输方法。
本申请实施例还提供了一种计算机可读存储介质，该计算机可读存储介质上存储有计算机程序，该计算机程序被处理器执行时实现上述的数据传输方法。
附图说明
图1为本申请实施例提供的数据传输方法的流程图；
图2为本申请实施例提供的第二类信道与资源块的映射关系的示意图；
图3为本申请实施例提供的数据传输方法的流程图；
图4为本申请实施例提供的多个第一类信道的数据分段映射至不同资源单元的示意图；
图5为本申请实施例提供的虚拟信道的数据映射至对应的资源块中的示意图；
图6为本申请实施例提供的数据传输装置的结构示意图；以及
图7为本申请实施例提供的通信节点的硬件结构示意图。
具体实施方式
下面结合附图和实施例对本申请进行说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本申请，而非对本申请的限定。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。另外还需要说明的是，为了便于描述，附图中仅示出了与本申请相关的部分而非全部结构。
在无线通信系统中，网络侧的通信节点(例如基站)通过对各种物理信道(例如物理下行共享信道(Physical Downlink Shared Channel，PDSCH)、物理下行控制信道(Physical Downlink Control Channel，PDCCH)、物理广播信道(Physical Broadcast Channel，PBCH)等)分配逻辑资源块来确定每种信道的资源映射表。为完成物理信道数据的相干解调，还可在物理信道映射的资源中插入解调参考信号(Demodulation Reference Signal，DMRS)，在一个物理信道的RB上插花式映射DMRS的信息；另外，为完成数据的相位偏移测量，
在物理信道中还需要插入相位跟踪参考信号(Phase Tracking Reference Signal，PTRS)；为完成信道状态信息的测量以及波束管理等功能，还引入了小区参考信号(Cell Reference Signal，CRS)、信道状态信息参考信号(Channel-state Information Reference Signal，CSI-RS)信号等。上述的各种物理信道和物理信号，在不同协议、不同带宽下的定义以及资源映射的方式不同，如果对每种物理信道和物理信号都定义资源映射方式，则计算复杂度较高，不能满足不同场景实时切换的通信需求。
在本申请实施例中，提供一种数据传输方法，可应用于通信节点，所述通信节点为无线通信系统中具有资源分配功能的节点，例如可以是网络侧设备、网管设备、基站、服务节点、集中式控制单元等。该方法定义了两类虚拟信道，只需要针对这两类虚拟信道与资源块的映射关系，通过对应的资源块传输相应数据，降低了资源映射的复杂度，进而可高效传输数据。
图1为本申请实施例提供的数据传输方法的流程图。如图1所 示，本实施例提供的数据传输方法包括步骤110和步骤120。
在步骤110中，根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一。
本实施例中，虚拟信道是对无线通信系统中的物理信道和物理信号，按照不同的RE映射类型重新分类而抽象出的信道。虚拟信道包括两类：物理信道(例如PDSCH、PDCCH、PBCH等)通常只能映射至连续的资源单元，可作为第一类信道，第一类信道也可以理解为虚拟业务信道，用于传输不同的业务数据；物理信号(例如DMRS、CRS、PTRS等)通常是以插花的形式映射至不连续的资源单元，可作为第二类信道，第二类信道也可以理解为虚拟参考信道，用于传输在信道状态测量、信道质量测量、波束管理等过程中所需的参考信息。
在步骤120中，根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
本实施例中，分别定义第一类信道和第二类信道与资源块的映射关系，资源映射的过程即为根据映射关系，将虚拟信道的数据与资源块中的资源单元相对应以实现数据传输的过程，在此基础上，对同一类信道可采用相同的资源单元映射类型，通过对应的资源块中的资源单元传输数据，从而降低资源映射的复杂度。带宽范围是指一个下行符号对应的整个带宽，带宽范围内包含多个资源块，每个资源块包括设定数量的资源单元。
需要说明的是，虚拟业务信道与虚拟参考信道可理解为硬件加速器与软件的接口，通信节点通过定义第一类信道与第二类信道，使信道和资源之间的映射更灵活。虚拟信道和资源之间的映射关系是根据天线端口、波束、资源配置等预先定义的。
本实施例的数据传输方法通过将信道划分为两类，只需要针对这两类虚拟信道与资源块的映射关系，通过对应的资源块传输相应数据，降低了资源映射的复杂度，能够低延时的完成任意物理信道或物理信号的资源映射，从而完成不同协议、不同带宽下的频域资源映射，进而实现高效传输数据。此外，两类虚拟信道还具有可扩展性，随着 协议和应用场景的变化，即便在无线通信系统中引入了新的物理信道或物理信号，只需按照资源单元映射类型将其抽象为第一类信道或者第二类信道，即可按照虚拟信道对应的映射关系，实现资源映射和数据传输。
在一些实施方式中，资源单元映射类型包括连续映射和非连续映射；
步骤110包括：将资源单元映射类型为连续映射的物理信道作为第一类信道；将资源单元映射类型为非连续映射的物理信号作为第二类信道。
本实施例中，连续映射是指，将一类信道的数据映射至资源块中的一组或多组连续的资源单元上进行传输，例如，一个资源块包括12个资源单元(RE0至RE11)，连续映射例如是一类信道的数据映射至该资源块中的RE0至RE9。连续映射也包含疏分映射，即，允许在连续资源单元中按照一定规律存在不映射的资源单元，例如，一类信道的数据映射至该资源块中的RE0至RE3、RE8至RE11，RE4至RE7上不映射这类信道的数据。非连续映射是指，一类信道的数据映射至资源块中不连续的资源单元上进行传输，例如，映射至该资源块中的RE0、RE3、RE8等。
图2为本申请实施例提供的第二类信道与资源块的映射关系的示意图。如图2所示，虚拟参考信道0和虚拟参考信道1为两个第二类信道，在整个带宽范围内，虚拟参考信道0对应的RB与虚拟参考信道1对应的RB存在部分重叠，每个RB包括12个RE，在映射图样中各RE由下到上依次编号为RE0至RB11。对于虚拟参考信道0，在起始RB位置至结束RB位置之间的每个RB中，虚拟参考信道0的数据分别映射至RE1、RE4、RE9(如映射图样中竖线所示的RE)；对于虚拟参考信道1，在起始RB位置至结束RB位置之间的每个RB中，虚拟参考信道1的数据分别映射至RE0、RE3、RE8(如映射图样中斜线所示的RE)。对于重叠部分的每个RB，可以通过RB中的不同的资源单元映射虚拟参考信道0和虚拟参考信道1的数据。
在一些实施方式中，在步骤120之前，所述数据传输方法还包 括：
步骤100：根据无线帧格式确定资源单元的每个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号为下行符号。
本实施例中，以一个OFDM符号为处理单位，网络侧的通信节点根据无线帧格式判定该OFDM符号是否为下行符号，在该OFDM符号为下行符号的情况下，对该OFDM符号在整个带宽范围内进行虚拟信道的资源映射和数据传输，如果该OFDM符号是上行符号，则不需要进行资源映射和数据传输。
在一些实施方式中，步骤120包括：依次对于带宽范围内的每个资源块，读取该资源块对应的虚拟信道的数据；将读取到的数据映射至该资源块中对应的资源单元中进行传输。
本实施例中，以资源块为单位，完成对于一个OFDM符号的整个带宽范围内的资源映射。根据虚拟信道的定义，可以顺序得到虚拟信道在每个RB中的映射关系。示例性的，对于RB0，如果RB0对应于一个第一类信道，则读取该第一类信道的数据，并映射至RB0中相应的资源单元中进行传输；对于RB1，如果RB1对应于一个第一类信道和一个第二类信道，则分别读取该第一类信道的数据和该第二类信道的数据，并分别映射在RB1中相应的资源单元中进行传输；以此类推，直至对一个OFDM符号的整个带宽范围内的所有RB都完成资源映射和数据传输，再针对下一个OFDM符号，按照上述方法，依次对带宽范围内的每个资源块完成资源映射和数据传输。
图3为本公开实施例提供的数据传输方法的流程图。如图3所示，所述数据传输方法包括以下步骤210至260。
步骤210、将资源单元映射类型为连续映射的物理信道作为第一类信道。
步骤220、将资源单元映射类型为非连续映射的物理信号作为第二类信道。
步骤230、对于带宽范围内的第i个资源块，读取该资源块对应的虚拟信道的数据。
本实施例中，第一类信道、第二类信道与资源块之间的映射关系，由通信节点预定义，或者根据协议确定。
步骤240、将读取到的数据映射至该资源块中对应的资源单元中进行传输。
步骤250、判断是否读取到所有资源块对应的虚拟信道的数据，若是，则进入步骤260；否则，i＝i+1，继续对下一个资源块执行步骤230至步骤250。
步骤260、资源映射和数据传输结束。
在一些实施方式中，步骤240包括：在一个资源块对应于多个第一类信道的数据的情况下，各第一类信道的数据分段映射至该资源块中的不同资源单元中进行传输。
本实施例中，RB中的一个RE只能对应于一个第一类信道的数据，如果一个RE对应于多个第一类信道的数据，则对于该RE，只能映射一个第一类信道的数据，丢弃其他第一类信道的数据。
图4为本申请实施例提供的多个第一类信道的数据分段映射至不同资源单元的示意图。如图4所示，虚拟业务信道0和虚拟业务信道1为两个不同的第一类信道，在一个RB中，中间部分的RE(阴影区域所示)对应于虚拟业务信道0的数据和虚拟业务信道1的数据。这种情况下，可以根据设定原则将这部分RE用于传输其中一个虚拟业务信道的数据，例如，不同的第一类信道具有不同的优先级，则这部分RE仅用于传输优先级最高的虚拟业务信道的数据。如果虚拟业务信道0的优先级高于虚拟业务信道1的优先级，则如图4中所示，该RB的RE由下到上分为三段，分别用于传输虚拟业务信道1的数据、虚拟业务信道0的数据、虚拟业务信道1的数据。
需要说明的是，图4中，如果虚拟业务信道1的优先级高于虚拟业务信道0的优先级，由于虚拟业务信道1对应的起始RE位置和结束RE位置之间的范围更大，包含了虚拟业务信道0对应的起始RE位置和结束RE位置，这种情况下，RB中的三段RE都用于传输虚拟业务信道1的数据。
在一些实施方式中，在一个RE对应于多个第一类信道的数据的 情况下，也可以根据其他原则保留一个第一类信道的数据。例如，图4中，虚拟业务信道0对应的RE全部属于虚拟业务信道1对应的RE，则为了提高该RB中对不同信道的数据传输的多样性、减少不同信道的数据丢失，可以利用这部分重叠的RE传输虚拟业务信道0的数据，而利用其他部分的RE传输虚拟业务信道1的数据。又如，对于重叠的RE，可用于传输对应的RE总数量较少、或者发生重叠的RE占该虚拟信道对应的RE总数量的比重较大的虚拟业务信道的数据。
在一些实施方式中，将读取到的数据映射至该资源块中对应的资源单元中进行传输包括：在一个资源块对应于多个第二类信道的数据的情况下，各第二类信道的数据按照映射图样映射至该资源块中的资源单元中进行传输。
本实施例中，RB中的RE可对应于多个第二类信道的数据，各第二类信道的数据按照映射图样，插花式映射至该RB中相应的RE。第二类信道的映射图样可以由通信节点或者由协议定义。
在一些实施方式中，在有多个第二类信道的情况下，各第二类信道的映射图样不存在重叠的RE。如果多个第二类信道的映射图样存在重叠的RE，则对于该RE，只映射一个第二类信道的数据，丢弃其他第二类信道的数据。
在一些实施方式中，虚拟信道为至少一个，在虚拟信道有多个的情况下，各第一类信道的优先级不同。
本实施例中，虚拟信道包括第一类信道和/或第二类信道，虚拟信道可以为一个或多个。不同虚拟信道的优先级可以由通信节点或者由协议定义。在多个虚拟信道对应的资源块中的RE存在重叠的RE的情况下，对于重叠的RE，只映射优先级最高的一个虚拟信道的数据，丢弃其他虚拟信道的数据。
图5为本申请实施例提供的虚拟信道的数据映射至对应的资源块中的示意图。以20个RB为例进行说明。首先，根据资源单元映射方式定义如下虚拟信道：
虚拟业务信道0：对应于RB8至RB13；
虚拟业务信道1：对应于RB0至RB19；
虚拟参考信道0(CSI-RS)：对应于RB1至RB9；
虚拟参考信道1(DM-RS)：对应于RB8至RB18；
虚拟业务信道0的优先级大于虚拟业务信道1的优先级。
资源映射过程如下：
对于RB0，解析虚拟信道，确定RB0的12个RE均用于映射虚拟业务信道1的数据，则读取虚拟业务信道1的数据，顺序映射在RB0的RE0至RE11上；
对于RB1，解析虚拟信道，确定RB1用于映射虚拟业务信道1和虚拟参考信道0的数据，根据虚拟参考信道0的映射图样，确定RB1中有3个RE(如斜线所示)用于映射虚拟参考信道0的数据，其余9个RE可用于映射虚拟业务信道1的数据，分别读取虚拟业务信道1和虚拟参考信道0的数据并完成对RB1的资源映射；
同理，顺序完成RB2至RB7的资源映射；
对于RB8，解析虚拟信道，确定RB8用于映射虚拟业务信道0(虚拟业务信道1的优先级低于虚拟业务信道0的优先级，在RB8上虚拟业务信道1的数据被丢弃)、虚拟参考信道0和虚拟参考信道1的数据，根据虚拟参考信道0和虚拟参考信道1的映射图样，确定RB8中有3个RE(如斜线所示)用于映射虚拟参考信道0的数据，还有3个RE(如竖线所示)用于映射虚拟参考信道1的数据，还有6个RE可用于映射虚拟业务信道0的数据，分别读取各虚拟信道的数据并完成对RB8的资源映射。
同理，顺序完成带宽范围内对所有RB的资源映射，以使虚拟信道的数据映射至对应的RB中的RE中进行传输。
本实施例的数据传输方法通过定义两类虚拟信道，并根据每类虚拟信道与资源块中资源单元的映射关系，以资源块为单位实现了资源映射和数据传输，此外，在不同虚拟信道对应的RE重叠的情况下，也能够实现有效的资源映射，提高了资源映射的灵活性，降低了资源映射的复杂度，进而提高了数据传输效率。
本申请实施例还提供一种数据传输装置。图6为本申请实施例 提供的数据传输装置的结构示意图。如图6所示，所述数据传输装置包括：信道定义模块310和映射传输模块320。
信道定义模块310设置为根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一。
映射传输模块320设置为根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
本实施例的数据传输装置通过将信道划分为两类，只需要针对这两类信道与资源块的映射关系，通过对应的资源块传输相应数据，降低了资源映射的复杂度，进而实现高效传输数据。
在一些实施方式中，所述资源单元映射类型包括连续映射和非连续映射；
信道定义模块310设置为：
将资源单元映射类型为连续映射的物理信道作为所述第一类信道；
将资源单元映射类型为非连续映射的物理信号作为所述第二类信道。
在一些实施方式中，所述数据传输装置还可包括：
下行确定模块，设置为在将所述虚拟信道的数据映射至对应的资源块中进行传输之前，根据无线帧格式确定所述资源单元的每个正交频分复用OFDM符号为下行符号。
在一些实施方式中，映射传输模块320设置为：
依次对于带宽范围内的每个资源块，读取该资源块对应的虚拟信道的数据；
将读取到的数据映射至该资源块中对应的资源单元中进行传输。
在一些实施方式中，映射传输模块320设置为：
在一个资源块对应于多个第一类信道的数据的情况下，各所述第一类信道的数据分段映射至该资源块中的不同资源单元中进行传输。
在一些实施方式中，映射传输模块320设置为：
在一个资源块对应于多个第二类信道的数据的情况下，各所述第二类信道的数据按照映射图样映射至该资源块中的资源单元中进行传输。
在一些实施方式中，映射传输模块320设置为：
所述第一类信道为至少一个，
在所述第一类信道有多个的情况下，各所述第一类信道的优先级不同。
本实施例提出的数据传输装置与上述实施例提出的数据传输方法属于同一构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行上述数据传输方法相同的有益效果。
本申请实施例还提供一种通信节点。本申请实施例的数据传输方法可以由本申请实施例的数据传输装置执行，该数据传输装置可以通过软件和/或硬件的方式实现，并集成在所述通信节点中。所述通信节点为无线通信系统中具有资源分配功能的节点，例如可以是网络侧设备、基站、服务节点、集中式控制单元等。
图7为本申请实施例提供的通信节点的硬件结构示意图。如图7所示，本实施例提供的通信节点包括：处理器410和存储装置420。该通信节点中的处理器可以是一个或多个，图7中以一个处理器410为例，处理器410和存储装置420可以通过总线或其他方式连接，图7以通过总线连接为例。
存储装置420可存储一个或多个计算机程序，所述一个或多个计算机程序被一个或多个处理器410执行时，使得所述一个或多个处理器410实现上述任一实施例所述的数据传输方法。
该通信节点中的存储装置420作为一种计算机可读存储介质，可用于存储一个或多个计算机程序，所述计算机程序可以是软件程序、计算机可执行程序以及模块，如本申请实施例中的数据传输方法对应的程序指令/模块(例如，附图6所示的数据传输装置中的模块，包括：信道定义模块310和映射传输模块320)。处理器410通过运行存储在存储装置420中的软件程序、指令以及模块，从而执行通信节 点的各种功能应用以及数据处理，即实现上述方法实施例中的数据传输方法。
存储装置420主要包括程序存储区和数据存储区，程序存储区可存储操作系统、至少一个功能所需的应用程序；数据存储区可存储根据设备的使用所创建的数据等(如上述实施例中的资源单元映射类型、虚拟信道的数据等)。此外，存储装置420可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储装置420可进一步包括相对于处理器410远程设置的存储器，这些远程存储器可以通过网络连接至通信节点。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
当上述通信节点中所包括一个或者多个计算机程序被所述一个或者多个处理器410执行时，实现如下操作：根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
本实施例提出的通信节点与上述实施例提出的数据传输方法属于同一构思，未在本实施例中详尽描述的技术细节可参见上述任意实施例，并且本实施例具备与执行上述数据传输方法相同的有益效果。
本申请实施例还提供一种包含计算机可执行指令的计算机可读存储介质，所述计算机可执行指令在由计算机处理器执行时执行本申请实施例的数据传输方法，该数据传输方法包括：根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，每个资源块包括设定数量的资源单元。
通过以上关于实施方式的描述，所属领域的技术人员可以了解到，本申请可借助软件及通用硬件来实现，也可以通过硬件实现。基 于这样的理解，本申请的技术方案可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质(如计算机的软盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、闪存(FLASH)、硬盘或光盘等)中，包括多个指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本申请任意实施例所述的数据传输方法。
以上所述，仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
本申请附图中的任何逻辑流程的框图可以表示程序步骤，或者可以表示相互连接的逻辑电路、模块和功能，或者可以表示程序步骤与逻辑电路、模块和功能的组合。计算机程序可以存储在存储器上。存储器可以具有任何适合于本地技术环境的类型并且可以使用任何适合的数据存储技术实现，例如但不限于只读存储器(ROM)、随机访问存储器(RAM)、光存储器装置和系统(数码多功能光碟DVD或CD光盘)等。计算机可读存储介质可以包括非瞬时性存储介质。处理器可以是任何适合于本地技术环境的类型，例如但不限于通用计算机、专用计算机、微处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、可编程逻辑器件(FGPA)以及基于多核处理器架构的处理器。
通过示范性和非限制性的示例，上文已提供了对本申请的示范实施例的详细描述。但结合附图和权利要求来考虑，对以上实施例的多种修改和调整对本领域技术人员来说是显而易见的，但不偏离本申请的范围。因此，本申请的恰当范围将根据权利要求确定。

Claims (10)

  1. 一种数据传输方法，包括：
    根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；以及
    根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，其中，每个资源块包括设定数量的资源单元。
  2. 根据权利要求1所述的方法，其中，所述资源单元映射类型包括连续映射和非连续映射；
    所述根据资源单元的映射类型确定虚拟信道包括：
    将资源单元映射类型为连续映射的物理信道作为所述第一类信道；以及
    将资源单元映射类型为非连续映射的物理信号作为所述第二类信道。
  3. 根据权利要求1所述的方法，还包括：
    在将所述虚拟信道的数据映射至对应的资源块中进行传输之前，根据无线帧格式确定所述资源单元的每个正交频分复用OFDM符号为下行符号。
  4. 根据权利要求1所述的方法，其中，根据所述虚拟信道与带宽范围内的每个资源块的映射关系将所述虚拟信道的数据映射至对应的资源块中进行传输包括：
    依次对于带宽范围内的每个资源块，读取该资源块对应的虚拟信道的数据；以及
    将读取到的数据映射至该资源块中对应的资源单元中进行传输。
  5. 根据权利要求4所述的方法，其中，所述将读取到的数据映 射至该资源块中对应的资源单元中进行传输包括：
    在一个资源块对应于多个第一类信道的数据的情况下，各所述第一类信道的数据分段映射至该资源块中的不同资源单元中进行传输。
  6. 根据权利要求4所述的方法，其中，所述将读取到的数据映射至该资源块中对应的资源单元中进行传输包括：
    在一个资源块对应于多个第二类信道的数据的情况下，各所述第二类信道的数据按照映射图样映射至该资源块中的资源单元中进行传输。
  7. 根据权利要求1至6中任一项所述的方法，其中，所述虚拟信道为至少一个；
    在所述虚拟信道有多个的情况下，各所述虚拟信道的优先级不同。
  8. 一种数据传输装置，包括：
    信道定义模块，设置为根据资源单元映射类型确定虚拟信道，所述虚拟信道包括第一类信道和第二类信道中的至少之一；以及
    映射传输模块，设置为根据所述虚拟信道与带宽范围内的每个资源块的映射关系，将所述虚拟信道的数据映射至对应的资源块中进行传输，其中，每个资源块包括设定数量的资源单元。
  9. 一种通信节点，包括：
    一个或多个处理器；以及
    存储装置，配置为存储一个或多个计算机程序；
    当所述一个或多个计算机程序被所述一个或多个处理器执行时，使得所述一个或多个处理器实现如权利要求1至7中任一项所述的数据传输方法。
  10. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至7中任一项所述的数据传输方法。
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