WO2022127764A1 - 信息传输方法、装置、iab节点及网络设备 - Google Patents

信息传输方法、装置、iab节点及网络设备 Download PDF

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Publication number
WO2022127764A1
WO2022127764A1 PCT/CN2021/137735 CN2021137735W WO2022127764A1 WO 2022127764 A1 WO2022127764 A1 WO 2022127764A1 CN 2021137735 W CN2021137735 W CN 2021137735W WO 2022127764 A1 WO2022127764 A1 WO 2022127764A1
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Prior art keywords
frequency domain
availability
iab node
indication
resource
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English (en)
French (fr)
Inventor
彭淑燕
王欢
刘进华
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to EP21905693.4A priority Critical patent/EP4266782A4/en
Priority to JP2023537280A priority patent/JP7798892B2/ja
Publication of WO2022127764A1 publication Critical patent/WO2022127764A1/zh
Priority to US18/336,651 priority patent/US20230337206A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/231Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H04W72/232Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/27Control channels or signalling for resource management between access points
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices
    • H04W88/085Access point devices with remote components

Definitions

  • the present application belongs to the field of communication technologies, and in particular, relates to an information transmission method, an apparatus, an IAB node and a network device.
  • the Integrated Access Backhaul (IAB) system is a technology that has been standardized since the 16th Release (Release 16, Rel-16) of the New Radio (New Radio, NR).
  • An IAB node includes a distributed unit (Distributed Unit, DU) functional part and a mobile device (Mobile Termination, MT) functional part.
  • DU distributed Unit
  • MT Mobile Termination
  • all DUs of IAB nodes are connected to a central unit (Centralized Unit, CU) node, and the CU node passes through the F1 control plane interface (F1-C) or the F1 application protocol (F1- AP protocol) configures the DU, and configures the MT through the Radio Resource Control (Radio Resource Control, RRC) protocol.
  • F1-C F1 control plane interface
  • F1- AP protocol F1 application protocol
  • RRC Radio Resource Control
  • DU and MT can use time division multiplexing (TDM), space division multiplexing (SDM) or frequency division multiplexing (Frequency-division multiplexing, FDM).
  • TDM time division multiplexing
  • SDM space division multiplexing
  • FDM frequency division multiplexing
  • Embodiments of the present application provide an information transmission method, apparatus, IAB node, and network equipment, so as to provide a method for coordinating information transmission between IAB nodes or within IAB nodes by using frequency domain resources, thereby reducing the number of IAB nodes or IAB nodes. Interference within the node.
  • an embodiment of the present application provides an information transmission method, and the method includes:
  • Information transmission is performed according to the frequency domain availability of the distribution unit DU of the IAB node;
  • the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or configured by the central unit CU, or predefined by a protocol.
  • the embodiments of the present application also provide an information transmission method, the method comprising:
  • the frequency domain availability of the DUs of the IAB node is indicated to the IAB node.
  • an information transmission device comprising:
  • a transmission module configured to transmit information according to the frequency domain availability of the distribution unit DU of the IAB node
  • the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or configured by the central unit CU, or predefined by a protocol.
  • an embodiment of the present application further provides an information transmission device, the device comprising:
  • the first indicating module is configured to indicate the frequency domain availability of the DU of the IAB node to the IAB node.
  • embodiments of the present application further provide an IAB node, where the IAB node includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction
  • the steps of the method of the first aspect are implemented when executed by the processor.
  • an embodiment of the present application further provides a network device, the network device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction The steps of the method of the second aspect are implemented when executed by the processor.
  • an embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method according to the first aspect is implemented. steps, or steps for implementing the method according to the second aspect.
  • an embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running a program or an instruction to implement the above-mentioned first step.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running a program or an instruction to implement the above-mentioned first step.
  • a computer program product is provided, the computer program product is stored in a non-transitory storage medium, the computer program product is executed by at least one processor to implement the method according to the first aspect above , or implement the method described in the second aspect above.
  • a tenth aspect provides a communication device configured to perform the method as described in the first aspect above, or to perform the method as described in the second aspect above.
  • information transmission is performed according to the frequency domain availability of the DU of the IAB node; wherein, the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or is configured by the central unit CU, Or predefined by the protocol.
  • the frequency domain availability of DUs is indicated by the parent IAB node of the IAB node, or is configured by the central unit CU, Or predefined by the protocol.
  • FIG. 1 is a schematic structural diagram of an IAB system provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a CU-DU of an AB system provided by an embodiment of the present application
  • FIG. 3 is a structural diagram of a network system to which an embodiment of the present application can be applied;
  • FIG. 5a is one of the schematic diagrams of the location of the frequency domain availability indication in the DCI provided by the embodiment of the present application.
  • FIG. 5b is the second schematic diagram of the location of the frequency domain availability indication in the DCI provided by the embodiment of the present application.
  • FIG. 5c is the third schematic diagram of the position of the frequency domain availability indication in the DCI provided by the embodiment of the present application.
  • FIG. 6 is a flowchart of an information transmission method provided by an embodiment of the present application.
  • FIG. 7 is a structural diagram of an information transmission device provided by an embodiment of the present application.
  • FIG. 8 is a structural diagram of another information transmission apparatus provided by an embodiment of the present application.
  • FIG. 9 is a structural diagram of an IAB node provided by an embodiment of the present application.
  • FIG. 10 is a structural diagram of a network device provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.
  • IAB Integrated Access Backhaul
  • an IAB node includes a distributed unit (Distributed Unit, DU) functional part and a mobile device (Mobile Termination, MT) functional part. Relying on MT, an access IAB node (ie IAB node) can find an upstream IAB node (ie parent IAB node) and establish a wireless connection with the DU accessing the IAB node, the wireless connection is called backhaul link (ie backhaul link).
  • DU Distributed Unit
  • MT Mobile Termination
  • a self-access backhaul loop also includes a host IAB node (that is, the donor IAB node), and the host IAB node has a directly connected wired transmission network.
  • FIG. 2 is a schematic structural diagram of a central unit-distributed unit (Centralized Unit-Distributed Unit, CU-DU) of an IAB system.
  • CU-DU central unit-distributed unit
  • all DUs of IAB nodes are connected to a CU node, which includes CU control plane (ie CU-CP) and CU user plane (ie CU-UP).
  • the DU is configured through the F1-C or F1-AP (that is, the F1 application protocol) protocol
  • the MT is configured through the Radio Resource Control (Radio Resource Control, RRC) protocol.
  • the host IAB node has no MT functional part.
  • the introduction of the IAB system is aimed at the situation where the wired transmission network is not in place when the access points are densely deployed, that is, when there is no wired transmission network, the access points can rely on wireless backhaul.
  • TDM Time-Division Multiplexing
  • TDMed time-division multiplexed
  • the transceiver operation modes of DU and MT can include the following duplex modes or Reuse method:
  • Distributed unit transmit port (Distributed Unit Transmit X, DU-TX) & mobile terminal transmit port (Mobile Termination Transmit X, MT-TX), that is, DU is configured as downlink (Downlink, DL), MT is configured as uplink ( Uplink, UL); or DU has actual DL transmission, MT has actual UL transmission;
  • Distributed unit receiving port Distributed Unit Receive X, DU-RX
  • mobile terminal receiving port Mobile Termination Receive X, MT-RX
  • DU Distributed Unit Receive X
  • MT-RX Mobile Termination Receive X
  • DU-TX&MT-RX that is, DU is configured as DL, and MT is configured as DL; or DU has actual DL transmission, and MT has actual DL reception;
  • DU-RX & MT-TX that is, DU is configured as UL and MT is configured as UL; or DU has actual UL reception and MT has actual UL transmission.
  • DU TX and DU DL can be used in common
  • MT TX and MT UL can be used in common
  • DU RX and DU UL can be used in common
  • MT RX and MT DL can be used in common.
  • flexible (ie, flexible) configuration can be identical to DL/UL configuration processing, or can be independent of DL/UL configuration processing.
  • the host node CU configures the time domain resources of the DU through the signaling gNB-DU resource configuration (ie gNB-DU resource configuration) in the F1-AP (or F1-C).
  • the transmission type of symbols (symbols) in each time slot is configured, and the symbol types include DL/UL/flexible symbols (flexible symbols).
  • the availability of symbols of each type of the configuration DU may include configuration of hard (hard) type/soft (soft) type/Not Available (NA) type/shared type. Among them, the availability is based on the symbol type as the configuration unit, which may include the following situations.
  • the IAB DU can be sent on the symbol; if the UL symbol is configured as the hard type, the IAB DU can be received on the symbol; if the flexible symbol is configured as the hard type, Then the IAB DU can be sent or received on this symbol.
  • the IAB DU can be sent on this symbol; otherwise, it is not sent on this symbol; if the UL symbol is configured as soft type , if the reception of the IAB DU does not affect the transmission or reception of the MT, the IAB DU can be received on this symbol; otherwise, it is not received on this symbol; if the flexible symbol is configured as a soft type, if the IAB DU is sent or received.
  • the IAB parent node may indicate the availability of the soft symbol (soft symbol) of the IAB DU through downlink control information (Downlink Control Information, DCI) format 2_5 (format 2_5) (that is, DCI format 2_5).
  • DCI Downlink Control Information
  • the IAB DU is neither transmitted nor received on this symbol.
  • the IAB DU may be able to send and receive data simultaneously with the IAB MT on this symbol.
  • the available frequency domain resource of the DU is the bandwidth of the DU cell (cell).
  • the CU can configure several carriers (carriers) that the DU can use, and the DU can schedule resources on the configured carriers.
  • frequency domain resources of DU For frequency domain resources of DU, the availability of frequency domain resources can be configured as hard type/soft type/NA type/shared type. in:
  • the IAB DU can be sent/received/sent or received on the frequency domain resource;
  • the IAB DU can be sent on the DL frequency domain resource when the transmission of the IAB DU on the DL frequency domain resource does not affect the transmission or reception of the MT; otherwise, the IAB DU can be sent on the DL frequency domain resource.
  • the frequency domain resources are not sent; if the UL frequency domain resources are configured as soft type, the IAB DU can be sent on the UL frequency domain resources when the reception of the IAB DU on the UL frequency domain resources does not affect the transmission or reception of the MT.
  • the IAB DU on the flexible frequency domain
  • the sending or receiving of the resource does not affect the sending or receiving of the MT, the IAB
  • the DU can be sent or received on the flexible frequency domain resource; otherwise, no transmission or reception is performed on the flexible frequency domain resource.
  • the IAB DU is neither sent nor received on the frequency domain resource
  • the IAB DU and the IAB MT can simultaneously send and receive data on the frequency domain resource.
  • Downlink control information Downlink control information, DCI
  • format 2_5 format 2_5
  • DCI format 2_5 format 2_5
  • DCI format 2_5 format 2_5
  • IAB DU serving cell identification iabDuCellId-AI
  • AI Availability Indicator
  • a set of availability combination indications (AvailabilityCombinations), wherein each availability combination indication includes:
  • Resource Availability for indicating the availability of soft-type symbol resources in one or more time slots
  • the IAB-DU assumes that the availability combination adopts the configuration of the SCS provided by the IAB-DU uplink and downlink configuration (IAB-DU-Resource-Configuration-TDD-Config).
  • An AI indication in DCI format 2_5 indicates the availability of one or more time slots for the IAB DU.
  • the size of the AI indication is max ⁇ ceil(log2(maxAIindex+1)), 1 ⁇ bits (bit), where maxAIindex represents the largest AI index (index).
  • the availability of a soft type symbol is obtained according to the AI index and a table configured by Radio Resource Control (RRC). Specifically, the availability indication of soft-type symbols in one slot (slot) may be as shown in Table 1.
  • an optional implementation code of the RRC configuration can be as follows:
  • the time domain availability indication in DCI format 2_5 first find the corresponding time domain indication number (Entry), then under the time domain indication number, and then according to the frequency domain availability indication, find the corresponding frequency domain. Domain availability combination. That is, the frequency domain resource indication is an indication embedded under each time domain indication number.
  • FIG. 3 shows a structural diagram of a wireless communication system to which an embodiment of the present application can be applied.
  • the wireless communication system includes an IAB node 11 and a network device 12 .
  • the network device 12 may be the parent IAB node or CU of the IAB node 11 .
  • FIG. 4 is a flowchart of an information transmission method provided by an embodiment of the present application. The method may be performed by a self-backhauling IAB node, as shown in FIG. 4, including the following steps:
  • Step 401 Perform information transmission according to the frequency domain availability of the DU of the IAB node
  • the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or configured by the central unit CU, or predefined by a protocol.
  • the DU of the IAB node may also be referred to as an IAB DU.
  • the MT of the IAB node may also be called the IAB MT.
  • the above frequency domain availability may refer to the availability of frequency domain resources.
  • the above-mentioned frequency domain availability may include at least one of a hard (hard) type, a soft (soft) type, an unavailable (NA) type, and a shared (shared) type.
  • the frequency domain resources whose frequency domain availability is hard type can only be used by IAB DU; the frequency domain resources whose frequency domain availability is soft type can only be used by IAB DU when it does not affect IAB MT transmission and reception; the frequency domain availability is unavailable type
  • the frequency domain resources of the DU cannot be used by the DU; the frequency domain resources whose frequency domain availability is the sharing type can be used by the IAB DU and the IAB MT at the same time.
  • the above-mentioned frequency domain availability may also include only supporting TDM and supporting simultaneous transmission (Simultanesouly Transmission), wherein, supporting simultaneous transmission means supporting MT and DU to transmit information on the same time domain resources; or including multiplexing modes A, At least one of multiplexing mode B, multiplexing mode C, multiplexing mode D and only TDM is supported.
  • the above multiplexing mode A may represent DU-TX&MT-TX, that is, DU is configured as DL, and MT is configured as UL;
  • the above multiplexing mode B may represent DU-RX&MT-RX, that is, DU is configured as UL, and MT is configured as DL;
  • the above multiplexing mode C may represent DU-TX&MT-RX, that is, DU is configured as DL, and MT is configured as DL;
  • the above multiplexing mode D may represent DU-RX&MT-TX, that is, DU is configured as UL, and MT is configured as UL.
  • the frequency domain availability of the DU of the above-mentioned IAB node can be indicated by the parent IAB node of the IAB node, for example, the above-mentioned parent IAB node can be controlled by DCI, Media Access Control (Media Access Control, MAC) control unit (Control, Element, CE) (that is, MAC CE) or RRC, etc. indicate the frequency domain availability of the DU of the IAB node; or the frequency domain availability of the DU of the IAB node can be indicated by the CU, for example, the CU can control packets through F1-C, backhaul adaptive protocol
  • the data unit (Backhaul Adaptation Protocol control Packet Data Unit, BAP control PDU) etc. indicates the frequency domain availability of the DU of the above IAB node; or the frequency domain availability of the DU of the above IAB node may be predefined by the protocol.
  • the frequency domain availability of DUs of the above-mentioned IAB node can be configured explicitly, for example, the frequency domain availability indication of DUs is sent to the IAB node through signaling such as RRC, F1-C, DCI, or MAC CE; Implicitly configured, for example, it is stipulated that the frequency domain availability of the frequency domain resources of the IAB DU in the case where the frequency domain resources of the IAB MT overlap with the frequency domain resources of the IAB DU is soft type, or the frequency domain of the overlapping part of the frequency domain resources. Domain availability is of type soft.
  • information transmission is performed according to the frequency domain availability of the distribution unit DU of the IAB node; wherein, the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or by Central unit CU configuration, or predefined by the protocol.
  • the frequency domain availability of DUs is indicated by the parent IAB node of the IAB node, or by Central unit CU configuration, or predefined by the protocol.
  • the method may also include:
  • a first indication is received, where the first indication is used to indicate at least one of the following:
  • the above frequency domain availability combination may include the availability of multiple frequency domain resources.
  • the above frequency domain availability combination may include the availability of some or all of the soft type frequency domain resources; or may include some or all of the frequency domain resources.
  • the above frequency domain availability combination may include the availability of UL frequency domain resources, the availability of DL frequency domain resources, and the availability of flexible frequency domain resources; or the above frequency domain availability combination may include the availability of soft type frequency domain resources and the availability of hard type frequency domain resources.
  • Availability of frequency domain resources; or the above combination of frequency domain availability may include availability of UL frequency domain resources in soft type frequency domain resources, availability of DL frequency domain resources in soft type frequency domain resources and soft type frequency domain resources availability of elastic frequency domain resources, etc.
  • the IAB node can search based on the above index of the frequency domain availability combination and the mapping relationship between the index of the frequency domain availability combination and the frequency domain availability combination. to the corresponding frequency domain availability combination.
  • the frequency domain availability of the IAB DU and the time domain availability of the IAB DU can be indicated respectively, that is, the above first indication can only be used to indicate the frequency domain availability of the IAB DU; the frequency domain availability of the IAB DU and the time domain availability of the IAB DU can be indicated.
  • the domain availability may also be indicated jointly, that is, the above-mentioned first indication may be used to indicate the frequency domain availability and the time domain availability.
  • the parent IAB node or CU of the IAB node may send the first indication to the IAB node, so that the IAB node may determine the frequency domain availability of the IAB DU based on the first indication, and perform the frequency domain availability based on the frequency domain availability of the IAB DU. information transmission, thereby reducing interference between IAB nodes or within IAB nodes.
  • the parent IAB node or CU of the IAB node displays the frequency domain availability of the indicated IAB DU to the IAB node through the first indication, not only the efficiency of determining the frequency domain availability of the IAB DU can be improved, but also the frequency domain availability configuration of the IAB DU can be improved. flexibility.
  • the first indication is further used to indicate the time domain availability of the DU of the IAB node.
  • the above-mentioned joint indication of the frequency domain availability of the IAB DU and the time domain availability of the IAB DU can be used to indicate the frequency domain availability and time domain availability of the IAB DU, which can save configuration signaling.
  • the first indication is carried in downlink control information DCI or medium access control control unit MAC CE or radio resource control RRC or F1-C signaling or backhaul adaptive protocol control packet data unit.
  • the first indication may be carried in DCI or MAC CE or RRC; when the CU indicates the DU to the IAB node
  • the above-mentioned first indication may be carried in F1-C signaling or BAP control PDU.
  • the above DCI may only be used to carry the frequency domain availability indication of DU, that is, the above-mentioned first indication; it may also carry both the frequency domain availability indication of DU and the frequency domain availability indication of DU. Time domain availability indication.
  • the above-mentioned DCI may be DCI format 2_5 or downlink control information (Downlink Control Information, DCI) format 2_0 (format 2_0) (that is, DCI format 2_0), or may be a newly defined format of DCI, for example, a defined special DCI for frequency domain availability indication of DU.
  • DCI Downlink Control Information
  • the above-mentioned DCI may be a DCI scrambled by a specific Radio Network Temporary Identifier (RNTI); or a DCI obtained in a specific search space; or obtained in a specific control resource set DCI.
  • RNTI Radio Network Temporary Identifier
  • the position and/or size of the first indication in the DCI is configured by RRC.
  • the position of the first indication in the DCI may include at least one of a start position of the first indication in the DCI, an end position of the first indication in the DCI, and a position range of the first indication in the DCI.
  • the parent IAB node of the IAB node can configure the position and/or size of the first indication in the DCI to the IAB node through RRC, so that the IAB node can be based on the position and/or size of the first indication in the DCI Or the size is quickly obtained from the DCI to the first indication.
  • This embodiment of the present application can improve the flexibility of the configuration of the first indication by configuring the position and/or size of the first indication in the DCI through the RRC.
  • the location of the first indication in the DCI is determined according to the location of the time domain availability indication of the DU of the IAB node in the DCI.
  • the location of the frequency domain availability indication of the IAB DU in the DCI is related to the location of the time domain availability indication of the IAB DU in the DCI, so that the IAB node can be based on the time domain availability indication of the IAB DU in the DCI.
  • the location in the IAB DU determines the location of the frequency domain availability indication (that is, the first indication) of the IAB DU in the DCI, which can save the indication signaling overhead of the frequency domain availability indication location.
  • the position of the first indication in the DCI is one of the following:
  • the position of the last time domain availability indication in the DCI is offset by a first offset value in the DCI, wherein the first offset value is the offset value indicated by the frequency domain availability;
  • the time domain availability indication of the DU of the IAB node is offset by a second offset value in the DCI, wherein the second offset value is a size of the time domain availability indication;
  • the time domain availability of the DU of the IAB node indicates the location in the DCI.
  • the value of the first offset value may be indicated by the parent IAB node or the CU, or predefined by a protocol, or determined according to the size of the time domain availability indication.
  • the position of the last time domain availability indication in the DCI (positionInDCI-AIlast) in the DCI may be the start position or the end position of the last time domain availability indication in the DCI, or the like.
  • the position of the time domain availability indication of the DU of the IAB node in the DCI may be the start position or the end position of the time domain availability indication of the IAB DU in the DCI, or the like.
  • the position of the frequency domain availability indication (ie the first indication) of the IAB DU in the DCI may be the position offset of the last time domain availability indication in the DCI in the DCI by a first offset. shift value.
  • the position or starting position of the frequency domain availability indication in the DCI that is, the frequency domain availability indication field position
  • positionInDCI-AIlast is the last one in the DCI
  • the time domain availability indicates the position or starting position in the DCI
  • the position indicator size is the size of the time domain availability indication.
  • the location of the frequency domain availability indication (ie, the first indication) of the IAB DU in the DCI may be offset by a second offset value for the location of the corresponding time domain availability indication in the DCI.
  • positionInDCI-AI is the time of the IAB DU
  • the domain availability indicates the position or starting position in the DCI
  • the position indicator size is the size of the time domain availability indication.
  • the location of the frequency domain availability indication (ie, the first indication) of the IAB DU in the DCI may be the location of the corresponding time domain availability indication in the DCI.
  • the position or starting position of the frequency domain availability indication in the DCI that is, the frequency domain availability indication field position
  • positionInDCI-AI is the time domain availability indication of the IAB DU at The position or starting position in the DCI.
  • This embodiment can multiplex positionInDCI-AI without defining a new field position indication.
  • the parameter positionInDCI-AI carried in the RRC may indicate the starting position of the time domain availability indication of the first cell in the DCI, and the frequency domain availability indication of the first cell is located in the DCI after the time domain indication; or , the parameter positionInDCI-AI carried in the RRC represents the availability indication in the time-frequency domain of the first cell, and the size of the availability indication in the time-frequency domain is max ⁇ ceil(log2(maxAIindex+1)), 1 ⁇ bits, where maxAIindex represents the maximum AI index.
  • the method further includes:
  • the frequency domain availability of the DU of the IAB node is determined according to the index of the frequency domain availability combination indicated by the first indication and a first mapping relationship, where the first mapping relationship is the frequency domain availability combination index and frequency domain Mapping of availability combinations.
  • the IAB node may, according to the index of the frequency domain availability combination indicated by the first indication, and the index of the frequency domain availability combination and the frequency domain availability
  • the combined mapping relationship determines the frequency domain availability of the IAB DU, wherein the above-mentioned index of the frequency domain availability combination and the mapping relationship of the frequency domain availability combination can be configured by the CU or the parent IAB node through RRC, or can be predefined by the protocol.
  • the parent IAB node can configure the frequency domain availability combination list through RRC, that is, the mapping relationship between the index of the frequency domain availability combination and the frequency domain availability combination, and the parent IAB node indicates the frequency domain availability combination index to the IAB node through DCI.
  • the IAB node searches for the frequency domain availability combination in the frequency domain availability combination list according to the index of the frequency domain availability combination indicated by the DCI, so as to determine the frequency domain availability.
  • the indication granularity of the availability of the DU in the frequency domain of the IAB node is determined according to at least one of the following:
  • the frequency range in which the carrier of the DU of the IAB node is located is located.
  • the parent IAB node when the indication granularity of the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node, the parent IAB node may indicate the frequency domain availability indication granularity to the IAB node through RRC, MAC CE or DCI,
  • the CU may indicate the frequency domain availability indication granularity to the IAB node through F1-C.
  • the configurable bandwidth range of the MT of the IAB node may also be referred to as a bandwidth part (Bandwidth Part, BWP) range of the IAB MT.
  • BWP bandwidth part
  • the above-mentioned indication granularity of determining the frequency domain availability of the IAB DU according to the available frequency domain resources of the IAB DU or the actually scheduled frequency domain resources may be the size and/or frequency of the available frequency domain resources of the IAB DU or the actually scheduled frequency domain resources.
  • the size of the domain availability indication signaling determines the indication granularity of the frequency domain availability of the IAB DU. For example, the larger the available frequency domain resources of the IAB DU or the actually scheduled frequency domain resources, the larger the indication signaling size is, then the frequency domain of the IAB DU The greater the granularity of the indication of availability.
  • the lower edge of the self-carrier or the upper edge of the BWP corresponds to 0, 1/4, 1/2, 3/4, and 1, that is, the frequency domain resources of the IAB DU are divided into 4 parts for indication.
  • the indication granularity of the frequency domain availability of the IAB DU can be configured for different frequency ranges respectively.
  • the frequency range at determines its corresponding indication granularity of frequency domain availability. For example, if the IAB aggregated cells include the FR1 cell and the FR2 cell, the corresponding frequency domain availability indication granularity may be configured for the FR1 cell and the FR2 cell, respectively.
  • each frequency range is configured with a corresponding indication granularity of frequency domain availability.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is one of the following:
  • N Physical Resource Block
  • Every M resource block group (Resource Block Group, RBG), M is a positive integer;
  • K is a positive integer
  • L is a positive integer.
  • the value of at least one of the foregoing N, M, K, and L may be indicated by the parent IAB node or indicated by the CU, or may be predefined by a protocol.
  • the parent IAB node may indicate the value of at least one of the above N, M, K and L through MAC CE or DCI.
  • the foregoing CU may indicate the value of at least one of the foregoing N, M, K, and L through F1-C.
  • the above RBG may be obtained by grouping resource blocks (Resource Block, RB).
  • the RBG may be determined according to the bandwidth, that is, the RB grouping is related to the bandwidth.
  • the corresponding relationship between the resource block size and the bandwidth can be predefined or preconfigured, so that the CU or parent IAB node can obtain the size of the indication information according to the bandwidth and the corresponding relationship between the indication granularity/resource group size and the bandwidth; thus, the IAB DU can obtain the size of the indication information according to the indication
  • the information and the corresponding relationship between the indication granularity/resource group size and the bandwidth can obtain the frequency domain resource range, and then the frequency domain availability can be determined according to the frequency domain resource range and the indication information.
  • RBG may have the same concept as the RBG defined in Rel-16, or may be a newly defined resource block group, which is not limited in this embodiment of the present application.
  • the subband is determined according to an interference-related parameter or a channel state information (Channel State Information, CSI) measurement parameter.
  • CSI Channel State Information
  • the above-mentioned subband may be related to interference-related parameters, or related to CSI measurement parameters.
  • the above-mentioned interference-related parameters may include, but are not limited to, at least one of an interference level, an interference threshold, and the like.
  • the above-mentioned CSI measurement parameters may include, but are not limited to, at least one of reference signals for CSI measurement, measurement thresholds, measurement time-frequency resources, and the like.
  • the subcarrier space (Subcarrier Space, SCS) used to determine the availability in the frequency domain may include at least one of the following:
  • the SCS configured in the uplink resource configuration and/or the downlink resource configuration of the DU of the IAB node
  • the SCS of the physical downlink control channel Physical Downlink Shared Channel, PDCCH
  • the synchronization signal block Synchronous Signal Block, SSB
  • PDCCH Physical Downlink Shared Channel
  • SSB Synchronous Signal Block
  • the SCS corresponding to the frequency range of the aggregated cells of the IAB node.
  • the above-mentioned parent IAB node may indicate the SCS for determining the availability of the frequency domain to the IAB node through RRC, MAC CE or DCI.
  • the CU may indicate the SCS used to determine the frequency domain availability through the F1-C or backhaul adaptive protocol control packet data unit.
  • the SCS indicated by the above F1-C, RRC, MAC CE, DCI or BAP control PDU may be directly indicated by the F1-C, RRC, MAC CE, DCI or the return adaptive protocol control packet data unit
  • the SCS used to determine the availability of the frequency domain can also be the SCS corresponding to the parameters indicated by the F1-C, RRC, MAC CE, DCI or backhaul adaptive protocol control packet data unit, for example, the SSB of the DU of the parent IAB node. SCS of SCS or PDCCH.
  • the above-mentioned time-domain availability combinations may be the above-mentioned availabilityCombinations.
  • the above-mentioned uplink resource configuration and/or downlink resource configuration may be the above-mentioned IAB-DU-Resource-Configuration-TDD-Config.
  • the corresponding SCSs may be configured for the aggregated cells of different frequency ranges, for example, the FR1 cells and the FR2 cells are respectively configured or predefined corresponding SCSs SCS.
  • the cell of FR1 and the cell of FR2 have PCell or Primary Secondary Cell (PSCell), refer to the SSB of PCell or PSCell or the SCS of PDCCH, otherwise, refer to the designated cell (such as the cell with the lowest frequency) SCS of SSB or PDCCH.
  • PSCell Primary Secondary Cell
  • the designated cell such as the cell with the lowest frequency SCS of SSB or PDCCH.
  • there may be more division methods for example, below 6 GHz, 6 to 30 GHz, and 30 to 100 GHz, and cells in each frequency range are respectively configured with corresponding SCSs.
  • the SCS used for determining the availability in the frequency domain is one of the following:
  • the SCS of the primary cell synchronization signal block in the at least two SCSs is a SCS of the primary cell synchronization signal block.
  • the SCS configuration used to determine the frequency domain availability may be the largest SCS among the above different SCS configurations Configuration or minimal SCS configuration or SCS configuration for PCell SSB.
  • the SCS configuration used to determine the frequency domain availability may be the largest SCS configuration among the above-mentioned multiple SCS configurations Either the minimal SCS configuration or the SCS configuration of the PCell SSB.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB is the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB.
  • the above is used to determine
  • the SCS of the frequency domain availability may be the SCS of the PCell or PSCell, or the largest or smallest SCS, or the SCS of the PDCCH or SSB of the PCell of the MCG, or the SCS of the PDCCH or SSB of the reference cell of the MCG, or The PDCCH of the reference cell of the SCG or the SCS of the SSB.
  • the first indication is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the frequency domain availability of the above-mentioned IAB DU may be related to the above-mentioned time-domain resource configuration, wherein the above-mentioned time-domain resource configuration may include the availability configuration of time-domain resources.
  • the parent IAB node or CU may perform availability configuration of frequency domain resources according to the time domain resource configuration, that is, the configuration of the content indicated by the first indication.
  • the frequency domain availability is configured for the resource whose time domain availability is configured as a soft type, that is, the above-mentioned first indication is used to indicate the frequency domain availability of the resource whose time domain availability is configured as a soft type, or the first indication is applied to the time domain availability A resource configured as a soft type.
  • the frequency domain availability of the above-mentioned IAB DU may be related to the frequency domain resource configuration.
  • the parent IAB node or CU may further indicate the availability of the frequency domain resources of the DUs of the IAB node when the availability of the frequency domain resources of the DUs of the IAB node is configured.
  • the CU can send a third indication through F1-C to configure the availability of frequency domain resources of the DU of the IAB node, and the parent IAB node can send the first indication through DCI or MAC CE to further indicate that the available resources of the DU of the IAB node are configured in the available resources Frequency Domain Availability The availability of frequency domain resources.
  • the parent IAB node may further indicate the frequency domain availability for the resource whose frequency domain availability is configured as a soft type, that is, the above-mentioned first indication is used to indicate the frequency domain availability of the resource whose frequency domain availability is configured as a soft type, or the first The indication applies to resources whose frequency domain availability is configured as a soft type.
  • the availability types of the frequency domain resources of the DU may include at least one of a hard (hard) type, a soft (soft) type, an NA type, and a shared (Shared) type, and the frequency domain resources of the DU may be configured with different availability types Type, for frequency domain resources whose frequency domain availability is configured as soft type, the parent IAB node or CU may further indicate its availability.
  • the frequency domain availability of the above-mentioned IAB DU may be related to a resource multiplexing mode, wherein the above-mentioned resource multiplexing mode may include at least one of TDM, FDM, and SDM.
  • the parent IAB node or the CU may configure the availability of frequency domain resources according to the resource multiplexing mode, that is, the configuration of the content indicated by the first indication.
  • the frequency domain availability is configured for resources whose resource multiplexing mode is TDM, that is, the above-mentioned first indication is used to indicate the frequency domain availability of the resources for which the DU and MT are in the TDM resource multiplexing mode, or the first indication is applied to The resources for which the DU and the MT are in the resource multiplexing mode of TDM, or the time when the first indication takes effect is the time when the DU and the MT are in the resource multiplexing mode of TDM.
  • the signaling carrying the first indication may carry indication information to indicate the resource multiplexing mode for which the first indication is directed.
  • the frequency domain availability of the above-mentioned IAB DU may be related to the duplex mode, wherein the above-mentioned duplex mode may include the above-mentioned MT TX/DU TX, MT TX/DU RX, MT RX/DU RX, MT RX At least one of /DU TX, MT TX only (only MT TX), MT RX only (only MT RX), DU TX only (only DU TX), and DU RX only (only DU RX).
  • the parent IAB node or the CU may configure the availability of frequency domain resources according to the duplex mode, that is, the configuration of the content indicated by the first indication.
  • the frequency domain availability is configured for the resource whose duplex mode is DU-TX&MT-TX, that is, the above-mentioned first indication is used to indicate the frequency domain availability of the resource where the DU and MT are in the duplex mode of DU-TX&MT-TX, or It is said that the first indication is applied to the resources where the DU and the MT are in the duplex mode of DU-TX&MT-TX, or the time when the first indication takes effect is the time when the DU and the MT are in the duplex mode of DU-TX&MT-TX.
  • the signaling carrying the first indication may carry indication information to indicate the duplex mode for which the first indication is directed.
  • the first indication is applied to at least one of the following:
  • the time domain is configured as a soft-type resource
  • the time domain is configured as a hard-typed resource
  • the time domain is configured as a resource of an unavailable type
  • the time domain is configured as a downlink type resource
  • the time domain is configured as an uplink type resource
  • the time domain is configured as a resource of elastic type
  • the above-mentioned first indication is applied to a resource whose time-domain configuration is a soft type, that is, the above-mentioned first indication is used to indicate the time-domain availability of a resource whose time-domain configuration is a soft type.
  • the parent IAB node or CU may configure frequency domain availability for resources whose time domain is configured as a soft type.
  • the above-mentioned first indication is applied to a resource whose time-domain configuration is a hard type, that is, the above-mentioned first indication is used to indicate the time-domain availability of a resource whose time-domain configuration is a hard type.
  • the parent IAB node or CU may configure frequency domain availability for resources that are time domain configured as hard type.
  • the above-mentioned first indication is applied to the resource whose time-domain configuration is of the unavailable type, that is, the above-mentioned first indication is used to indicate the time-domain availability of the resource whose time-domain configuration is of the unavailable type.
  • the parent IAB node or CU may configure frequency domain availability for resources whose time domain configuration is of an unavailable type.
  • the above-mentioned first indication is applied to resources whose time-domain configuration is DL type, that is, the above-mentioned first indication is used to indicate the time-domain availability of resources whose time-domain configuration is DL type.
  • the parent IAB node or CU may configure frequency domain availability for resources whose time domain configuration is DL type.
  • the above-mentioned first indication is applied to resources whose time-domain configuration is UL type, that is, the above-mentioned first indication is used to indicate the time-domain availability of resources whose time-domain configuration is UL type.
  • the parent IAB node or CU may configure frequency domain availability for resources whose time domain configuration is UL type.
  • the above-mentioned first indication is applied to the resource whose time-domain configuration is the elastic type, that is, the above-mentioned first indication is used to indicate the time-domain availability of the resource whose time-domain configuration is the elastic type.
  • the parent IAB node or CU may configure frequency domain availability for resources whose time domain is configured as an elastic type.
  • the above-mentioned first indication is applied to the resource corresponding to each time slot or each symbol, that is, the above-mentioned first indication is used to indicate the time domain availability of the resource corresponding to each time slot or each symbol.
  • the parent IAB node or CU may configure frequency domain availability for each slot or each symbol.
  • the first indication may be applied to resources whose time domain configuration is soft type and elastic type, that is, the first indication may be used to indicate the frequency of resources whose time domain configuration is soft type and elastic type. Domain availability.
  • the effective time of the first indication is determined according to at least one of the following:
  • the time domain parameter for which the first indication is instructed or configured to take effect is instructed or configured to take effect.
  • the above-mentioned effective time may be understood as a time window for effective, which may include the effective start time and the effective end time.
  • the time domain parameter for which the first indication of the above indication or configuration is valid may be the time domain parameter for which the first indication is valid indicated by F1-C, RRC, MAC CE or DCI.
  • the above-mentioned time-domain parameters may include, but are not limited to, at least one of an effective period, a time-domain offset, a time-domain resource size, a frequency-domain resource size, and a frequency-domain resource location (including a start point and an end point).
  • the time domain parameter may include at least one of the following: a valid period; a time domain offset; and a time domain resource size.
  • the above-mentioned time-domain offset may represent the offset of the start time when the first indication starts to take effect with respect to the reference time.
  • the above-mentioned time domain offset may be a fixed value or a variable value.
  • the above-mentioned reference time may be the time of receiving the above-mentioned first indication, or a time point determined according to the time of receiving the above-mentioned first indication.
  • the effective start time of the first indication may be the symbol, sub-slot or time slot.
  • S symbols or sub-slots or time slots after the slot the above-mentioned S is the above-mentioned time domain offset.
  • the above-mentioned time-domain resource size may include the number of time slots, the number of symbols, and the like.
  • the time domain resource size for which the pre-configured frequency domain availability indication takes effect is 10 time slots
  • the IAB node receives the parent IAB node indicating that the IAB DU in time slot P is of hard type
  • the IAB DU is in time slot P to time slot P+
  • scheduling is performed according to the frequency domain availability type, where P is a positive integer. That is, it is assumed that DUs will continuously occupy a segment of resources for transmission, so as to reduce the frequency domain availability indication performed on each time domain unit (eg, time slot), so as to save the overhead of indication signaling.
  • the effective time of the first indication may also be determined according to a frequency domain parameter, and the above frequency domain parameter may include at least one of a frequency domain resource size and a frequency domain resource location, and the above frequency domain resource location may include a frequency domain resource location. The start and end position of the domain resource.
  • the frequency domain resource for which the preconfigured frequency domain availability indication takes effect is 20 PRBs; the IAB node receives the parent IAB node or CU indicating that the IAB DU is of soft type in the Qth PRB, then the IAB DU is in the frequency domain resource.
  • Qth PRB The resources to the Q+19th PRB are of soft type, and the IAB node performs scheduling according to the configured frequency domain availability type, where P is a positive integer.
  • the method may also include:
  • a second indication is received, wherein the second indication is used to indicate at least one of a size and a location of the available frequency domain of the DU of the IAB node.
  • the above-mentioned parent IAB node or CU may indicate to the IAB node at least one of the size and location of the available frequency domain of the IAB DU.
  • an IAB node is configured with multiple DU cells, and the parent IAB node can directly and dynamically indicate that some of the multiple DU cells are cells available for DUs.
  • the parent IAB node may directly and dynamically indicate that part of the frequency domain resources in the cell are resources available to the DU.
  • the parent IAB node can dynamically indicate that some of the above-mentioned semi-static available resources are the actual available resources of the DU. .
  • the actual available resources of the above DU may be the intersection or union of semi-statically configured resources and dynamically indicated resources.
  • the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the frequency domain availability of the DUs of the IAB node may be determined according to the frequency domain resources of the DUs of the IAB node.
  • the frequency domain availability of the DU of the IAB node may be determined according to the frequency domain resources of the DU of the IAB node and the frequency domain resources of the MT of the IAB node. For example, if the frequency domain resources of the MT overlap with the frequency domain resources of the DU, the availability of the frequency domain resources of the DU is of the soft type, or the availability of the overlapping part of the frequency domain resources is of the soft type.
  • the frequency domain availability of the DU of the IAB node may be determined according to the resource multiplexing mode of the DU and the MT of the IAB node, wherein the resource multiplexing mode may include TDM, FDM, SDM, etc. at least one of.
  • the resource multiplexing mode may include TDM, FDM, SDM, etc. at least one of.
  • different resource multiplexing modes may correspond to different frequency domain availability types, for example, FDM corresponds to soft type, TDM corresponds to NA type, SDM corresponds to hard type, and so on.
  • the IAB node can determine the frequency domain availability of the corresponding DU based on the current resource multiplexing mode of the DU and the MT.
  • the frequency domain availability of the DU of the IAB node may be determined according to the duplex mode of the DU and the MT of the IAB node, wherein the duplex mode may include MT TX/DU TX, MT TX/ DU RX, MT RX/DU RX, MT RX/DU TX, only MT TX (only MT TX), only MT RX (only MT RX), only DU TX (only DU TX) and only DU RX ( at least one of only DU RX).
  • different duplex modes may correspond to different frequency domain availability types, for example, DU-TX&MT-TX corresponds to soft type, DU-RX&MT-RX corresponds to NA type, DU-TX&MT-RX corresponds to hard type, etc.
  • the IAB node can determine the frequency domain availability of the corresponding DU based on the current duplex mode of the DU and the MT.
  • the availability of the time-frequency resources of the DU of the IAB node may be determined according to the availability of the DU in the IAB node in the time domain and the frequency domain.
  • the availability type of the time-frequency resource of the DU of the IAB node is the same type; if the time domain availability type of the DU of the IAB node is of the same type; If the type and frequency domain availability type are different, the availability type of the time-frequency resource of the DU of the IAB node may be the type of time domain availability of the DU of the IAB node, or the type of frequency domain availability of the IAB node.
  • the time-frequency resource can be the available resource of the DU.
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is of the soft type.
  • the method may also include:
  • the frequency domain resource parameters include at least one of the following: the boundary of the frequency domain resources, the range of the frequency domain resources, the size of the frequency domain resources, and the expected availability of the frequency domain resources.
  • the IAB node may report frequency domain resource parameters to the parent IAB node or CU.
  • the IAB node can report the frequency domain resource parameters to the parent IAB node or CU through auxiliary information (Assistant Information), MAC CE or BAP control PDU.
  • the reporting manner of the frequency domain resource parameter includes one of the following: periodic reporting; event-triggered reporting; and poll-triggered reporting.
  • FIG. 6 is a flowchart of another information transmission method provided by an embodiment of the present application. The method is executed by a network device, as shown in FIG. 6, and includes the following steps:
  • Step 601 Indicate the frequency domain availability of the DU of the IAB node to the IAB node.
  • the above-mentioned network device may be the parent IAB node of the IAB node, or may be a CU.
  • the above-mentioned parent IAB node can indicate the frequency domain availability of the DU of the above-mentioned IAB node through DCI, MAC CE or RRC, etc.; or the CU can indicate the frequency domain availability of the DU of the above-mentioned IAB node through F1-C, BAP control PDU, etc.
  • this embodiment is an implementation of the network device corresponding to the embodiment shown in FIG. 4 .
  • the frequency domain availability of the DUs of the IAB node is indicated to the IAB node, so that the IAB node can perform information transmission based on the frequency domain availability of the DUs of the IAB node, thereby reducing the number of IAB nodes or Interference inside the IAB node.
  • the indicating to the IAB node the frequency domain availability of the DU of the IAB node includes:
  • the first indication is further used to indicate the time domain availability of the DU of the IAB node.
  • the network device is a parent IAB node of the IAB node, and the first indication is carried in downlink control information DCI or a medium access control control unit MAC CE or radio resource control RRC.
  • the parent IAB node of the IAB node may send the first indication to the IAB node through DCI or MAC CE or RRC.
  • the position and/or size of the first indication in the DCI is configured by RRC.
  • the location of the first indication in the DCI is determined according to the location of the time domain availability indication of the DU of the IAB node in the DCI.
  • the position of the first indication in the DCI is one of the following:
  • the position of the last time domain availability indication in the DCI is offset by a first offset value in the DCI, wherein the first offset value is an offset value indicated by the frequency domain availability;
  • the position of the time domain availability indication of the DU of the IAB node in the DCI is offset by a second offset value, wherein the second offset value is a size of the time domain availability indication;
  • the time domain availability of the DU of the IAB node indicates the location in the DCI.
  • the network device is a CU
  • the first indication is carried in F1-C signaling or backhauled in an adaptive protocol control packet data unit.
  • the CU may send the first indication to the IAB node through F1-C signaling or BAP control PDU.
  • the method may also include at least one of the following:
  • the SCS used to determine the frequency domain availability is indicated to the IAB node.
  • the parent IAB node of the IAB node may indicate the indication granularity of frequency domain availability to the IAB node through DCI or MAC CE or RRC, or the CU may indicate to the IAB node through F1-C signaling or BAP control PDU Indication granularity of frequency domain availability of DUs of the IAB node.
  • the SCS for determining the availability of the frequency domain may be indicated to the IAB node by the parent IAB node of the IAB node through DCI or MAC CE or RRC, or the SCS for determining the availability of the frequency domain may be indicated to the IAB node by the CU through F1-C signaling or BAP control PDU Indicates the SCS used to determine the frequency domain availability.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the frequency range in which the carrier of the DU of the IAB node is located is located.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is one of the following:
  • N is a positive integer
  • M is a positive integer
  • K is a positive integer
  • L is a positive integer.
  • the RBG is determined according to bandwidth.
  • the subband is determined according to interference-related parameters or channel state information CSI measurement parameters.
  • the SCS for determining the availability in the frequency domain includes one of the following:
  • the SCS configured in the uplink resource configuration and/or the downlink resource configuration of the DU of the IAB node
  • the SCS corresponding to the frequency range of the aggregated cells of the IAB node.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the SCS of the primary cell synchronization signal block in the at least two SCSs is a SCS of the primary cell synchronization signal block.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB is the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB.
  • the first indication is determined according to at least one of the following:
  • the resource multiplexing mode of the DU and MT of the IAB node is the resource multiplexing mode of the DU and MT of the IAB node.
  • the first indication is applied to at least one of the following:
  • the time domain is configured as a soft-type resource
  • the time domain is configured as a hard-typed resource
  • the time domain is configured as a resource of an unavailable type
  • the time domain is configured as a downlink type resource
  • the time domain is configured as an uplink type resource
  • the time domain is configured as a resource of elastic type
  • the method further includes:
  • the parent IAB node of the IAB node can send the time domain parameter that the first indication takes effect to the IAB node through DCI, MAC CE or RRC, or the CU can send the time domain parameter that takes effect through F1-C signaling or BAP control PDU to the IAB node. Send the time domain parameter that the first indication takes effect to the IAB node.
  • the time domain parameter includes at least one of the following: a valid period; a time domain offset; and a time domain resource size.
  • the method further includes:
  • a second indication is sent, wherein the second indication is used to indicate at least one of the size of the available frequency domain of the DU of the IAB node and the position of the available frequency domain.
  • the parent IAB node of the IAB node may send the second indication to the IAB node through DCI or MAC CE or RRC, or the CU may send the second indication to the IAB node through F1-C signaling or BAP control PDU .
  • the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the availability of the time-frequency resources of the DU of the IAB node is determined according to the availability of the DU in the IAB node in the time domain and the frequency domain.
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is of the soft type.
  • the method further includes:
  • the frequency domain resource parameters include at least one of the following: the boundary of the frequency domain resources, the range of the frequency domain resources, the size of the frequency domain resources, and the expected availability of the frequency domain resources.
  • the reporting manner of the frequency domain resource parameter includes one of the following: periodic reporting; event-triggered reporting; inquiry-triggered reporting.
  • Example 1 Time domain availability multiplexes DCI format 2_5 signaling, and indicates separately in DCI and time domain availability, this solution is compatible with R16 UE.
  • each IAB node or each cell (cell) of an IAB DU, some or all of the following information may be provided:
  • IAB DU serving cell identification iabDuCellId-AI
  • a frequency domain availability indicates the position in DCI format 2_5 (FreqPositionInDCI-AI);
  • a set of frequency domain availability combination indications (FreqAvailabilityCombinations), wherein each frequency domain availability combination indication includes:
  • Frequency domain resource availability indication (FreqResourceAvailability).
  • the frequency domain resource availability combination of Soft type provided by the frequency domain resource availability indication (FreqResourceAvailability) or some or all of the frequency domain resource availability combinations are combined with the corresponding AI index field value of the DCI format 2_5 provided by the frequency domain availability combination identifier (FreqAvailabilityCombinationId). That is, according to the FreqAvailabilityCombinationId indicated in the DCI and the mapping relationship configured by FreqAvailabilityCombinations, the availability indication of the corresponding frequency domain resource can be found.
  • the above frequency domain resource availability indication (FreqResourceAvailability) is used to indicate the availability of frequency domain resources.
  • a frequency domain resource availability indication may be configured for some or all of the soft type frequency domain resources; or a frequency domain resource availability indication may be configured for some or all of the frequency domain resources, that is, it is not limited to the soft type frequency domain resources; or Configure frequency domain resource availability indication for frequency domain resources of each resource type (ie hard/soft/NA, etc.) respectively; or for each multiplexing mode (ie MT TX/DU TX, MT RX/DU RX, MT TX respectively) /DU RX, MT RX/DU TX, TDM) configure frequency domain resource availability indication; or configure frequency domain resource availability indication for each link direction (ie UL/DL/Flexbile) respectively; or for each time slot or A frequency domain resource availability indication is configured per symbol.
  • the frequency domain resource availability indication is applied to the soft type frequency domain resources, that is, used to indicate the usefulness of the soft type frequency domain resources, it means that the frequency domain resource availability indication in the DCI only rewrites the frequency domain Resources that are pre-configured as soft type, and resources configured as hard/NA type are not overwritten. If the above frequency domain resource availability indication is applied to some or all resources, regardless of the availability of frequency domain pre-configured frequency domain resources, the frequency domain resource availability indication in DCI can override the resource availability of Hard/NA type.
  • IAB-DU assumes that the frequency domain availability combination indication (FreqAvailabilityCombinations) or frequency domain availability indication adopts the same SCS configuration as the time domain availability combination indication (availabilityCombinations); or adopts the IAB-DU uplink and downlink configuration (IAB-DU-Resource-Configuration-TDD -Config) provides the SCS configuration; or when there are multiple IAB-DU uplink and downlink configurations that provide different SCS configurations (may correspond to the case where the MT is in a dual-connection state), use the largest or smallest SCS configuration; or, When there are multiple time-domain availability Combinations (possibly corresponding to the case where the MT is in a dual-connection state) and corresponding to different SCS configurations, the largest or the smallest SCS may be used.
  • FreqAvailabilityCombinations frequency domain availability combination indication
  • availabilityCombinations adopts the same SCS configuration as the time domain availability combination indication (availabilityCombinations)
  • IAB-DU uplink and downlink configuration IAB-DU
  • the location of the frequency domain availability indication in the DCI may be one of the following three ways.
  • the position of the frequency domain availability indication in the DCI may be after the position of the last time domain availability indication in the DCI, as shown in FIG. 5a.
  • the location of the frequency domain availability indication in the DCI may be after the location of the corresponding time domain availability indication in the DCI, as shown in FIG. 5b.
  • the location of the frequency domain availability indication in the DCI may be the location of the corresponding time domain availability indication in the DCI, as shown in FIG. 5c .
  • the above-mentioned third mode may only configure one positionInDCI indication in the RRC configuration.
  • the frequency domain availability indication carried in DCI Format 2_5 may be FreqAvailabilityCombinationId-r17.
  • the corresponding RRC signaling configuration can be one of the following schemes:
  • the frequency domain availability indication and the time domain availability indication may use the same information element (Information Element, IE).
  • some fields in the IE may be shared by the time domain availability indication and the frequency domain availability indication, such as availabilityCombinationsPerCellIndex.
  • the existing field AvailabilityCombinationsPerCellIndex is a common index of available resource sets in time domain and frequency domain.
  • an optional implementation code of the RRC configuration can be as follows:
  • DCI Downlink Control Information
  • maxAI-DCI-PayloadSize-R17 represents the maximum DCI size defined in the protocol version 17 (Release 17, Rel-17) to indicate availability, and maxAI-DCI-PayloadSize-R16 represents the protocol defined in Rel-16 for Indicates the size of the maximum DCI for availability.
  • Option 2 Use an independent RRC IE to indicate frequency domain availability.
  • an optional implementation code of the RRC configuration can be as follows:
  • Example 2 The first-level frequency-domain availability indication is embedded in the time-domain availability indication.
  • IAB DU serving cell identification iabDuCellId-AI
  • a time domain availability indicates the position in DCI format 2_5 (positionInDCI-AI);
  • a frequency domain availability indicates the position in DCI format 2_5 (FreqPositionInDCI-AI);
  • a set of time domain availability combinations (AvailabilityCombinations,) where each time domain availability combination includes:
  • ResourceAvailability used to indicate the availability of soft type symbol resources in one or more time slots
  • the indication that is, the frequency domain resource indication, is an indication embedded under each time domain entry.
  • the RRC configuration parameters, SCS configuration, and DCI format related to frequency domain availability can refer to Example 1.
  • available frequency domain resource FreqResourceAvailability
  • available frequency domain combination identifier FreqAvailabilityCombinateionId
  • Example 3 RRC indicates frequency domain indication granularity, and DCI indicates frequency domain availability.
  • the CU or the parent IAB node may configure the frequency domain availability indication granularity for the IAB MT or IAB DU through RRC, for example, frequency domain availability indication granularity (FreqGranularity).
  • a DCI for indicating frequency domain availability is defined, for example, DCI format 2-7, through which the frequency domain availability of IAB DUs is indicated.
  • the IAB node may determine the length of the frequency domain availability indication according to the resource bandwidth of the MT or DU.
  • the length of the frequency domain availability indication may be one of the following:
  • the length of the indication field in the DCI can be ceil (BW/FreqGranularity), where ceil means rounding up, BW means the resource bandwidth of MT or DU, and FreqGranularity means the frequency domain availability indication granularity.
  • each frequency domain unit corresponds to 1 bit (bit), indicating whether it is available or unavailable; or indicating the resources of the soft type as the hard type or the NA type.
  • the length of the indication field in the DCI can be 2*ceil(BW/FreqGranularity), where ceil means rounding up, BW means the resource bandwidth of MT or DU, and FreqGranularity means the frequency domain availability indication granularity.
  • each frequency domain unit corresponds to 2 bits, and the frequency domain unit resource can be indicated as Soft type, Hard type, or NA type.
  • the length of the indication field in the DCI can be ceil(log2(BW/FreqGranularity))+1, where ceil means rounding up, BW means the resource bandwidth of the MT or DU, and FreqGranularity means the frequency domain availability indication granularity.
  • ceil means rounding up
  • BW means the resource bandwidth of the MT or DU
  • FreqGranularity means the frequency domain availability indication granularity.
  • the highest or lowest 1 bit indicates available or unavailable, or indicates the Hard type or NA type; ceil(log2(BW/FreqGranularity)) identifies which frequency domain resources are the indicated attributes.
  • the length of the indication field in the DCI is 2*ceil(log2(BW/FreqGranularity))+2, where ceil means rounding up, BW means the resource bandwidth of MT or DU, and FreqGranularity means the frequency domain availability indication granularity .
  • ceil means rounding up
  • BW means the resource bandwidth of MT or DU
  • FreqGranularity means the frequency domain availability indication granularity .
  • the highest or lowest 1 bit indicates Hard type or NA type; ceil(log2(BW/FreqGranularity)) identifies which frequency domain resources are the indicated attributes.
  • the second-highest bit or the second-lowest bit or the 2nd bit+ceil(log2(BW/FreqGranularity)) indicates the Hard type or NA type, and ceil(log2(BW/FreqGranularity)) identifies which frequency domain resources are the indicated properties.
  • the reference SCS used to determine the availability in the frequency domain may be a parameter configured by the RRC.
  • the time domain availability indication in DCI format 2_5 first find the corresponding time domain indication number (Entry), then under the time domain indication number, and then according to the frequency domain availability indication, find the corresponding frequency domain. Domain availability combination. That is, the frequency domain resource indication is an indication embedded under each time domain indication number.
  • Example 4 Extending the scope of the availability indication domain.
  • the indication range of resourceAvailability-r16 is extended.
  • RRC configuration An optional implementation code of the RRC configuration can be as follows:
  • the value range of resourceAvailability-r17 is 0-N, which indicates the availability indication of the time-frequency domain resources of the IAB.
  • N is a value greater than or equal to 8.
  • the value range of resourceAvailability-r16 is 0-7, which indicates the availability of the time domain UL/DL/Flexible symbol.
  • the time domain availability indication in DCI format 2_5 first find the corresponding time domain indication number (Entry), then under the time domain indication number, and then according to the frequency domain availability indication, find the corresponding frequency domain. Domain availability combination. That is, the frequency domain resource indication is an indication embedded under each time domain indication number.
  • the CU configures frequency domain availability or frequency domain resource attributes for the DU through F1-C signaling.
  • the configuration parameters of F1-C signaling can be as follows:
  • Scenario 1 Display and configure frequency domain availability, and configure with N PRBs as the indication granularity.
  • maxnoofFrequencyResource represents the number of indicated frequency domain resources. For example, if 10 PRBs are used as the indication granularity for indication, and the maximum bandwidth is 275 PRBs, 28 frequency domain indication marks are required.
  • Scenario 2 Display configuration frequency domain availability.
  • RB1, RB2, RB3, RB4... represent the indication granularity of the frequency domain availability indication.
  • maxnoofFrequencyResource represents the number of indicated frequency domain resources. For example, if 10 PRBs are used as the indication granularity for indication, and the maximum bandwidth is 275 PRBs, 28 frequency domain indication marks are required.
  • Scenario 3 Configure the frequency domain availability according to the resource multiplexing mode, and configure it in the multiplexing info IE.
  • Scenario 4 Configure the frequency domain availability according to the resource multiplexing mode, and configure it in the multiplexing info IE.
  • SIMUTRANSMISSION indicates that the simultaneous scheduling of MT and DU is supported.
  • Scenario 5 Configure in the gNB-DU Cell Resource Configuration IE, and configure the UL/DL/Flexible symbol of the time domain resource as the indication granularity.
  • FIG. 7 is a structural diagram of an information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 7, the information transmission apparatus 700 includes:
  • a transmission module 701 configured to transmit information according to the frequency domain availability of the distribution unit DU of the IAB node
  • the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or configured by the central unit CU, or predefined by a protocol.
  • the device further includes:
  • a first receiving module configured to receive a first indication, where the first indication is used to indicate at least one of the following:
  • the first indication is further used to indicate the time domain availability of the DU of the IAB node.
  • the first indication is carried in downlink control information DCI or medium access control control unit MAC CE or radio resource control RRC or F1-C signaling or backhaul adaptive protocol control packet data unit.
  • the position and/or size of the first indication in the DCI is configured by RRC.
  • the location of the first indication in the DCI is determined according to the location of the time domain availability indication of the DU of the IAB node in the DCI.
  • the position of the first indication in the DCI is one of the following:
  • the position of the last time domain availability indication in the DCI is offset by a first offset value in the DCI, wherein the first offset value is the offset value indicated by the frequency domain availability;
  • the time domain availability indication of the DU of the IAB node is offset by a second offset value in the DCI, wherein the second offset value is a size of the time domain availability indication;
  • the time domain availability of the DU of the IAB node indicates the location in the DCI.
  • the device further includes:
  • a determining module configured to determine the frequency domain availability of the DU of the IAB node according to the index of the frequency domain availability combination indicated by the first indication and the first mapping relationship, wherein the first mapping relationship is the frequency domain availability combination The mapping relationship between the index and the frequency domain availability combination.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the frequency range in which the carrier of the DU of the IAB node is located is located.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is one of the following:
  • N is a positive integer
  • M is a positive integer
  • K is a positive integer
  • L is a positive integer.
  • the RBG is determined according to bandwidth.
  • the subband is determined according to interference-related parameters or channel state information CSI measurement parameters.
  • the subcarrier spacing SCS used to determine the frequency domain availability includes at least one of the following:
  • the SCS configured in the uplink resource configuration and/or the downlink resource configuration of the DU of the IAB node
  • the SCS corresponding to the frequency range of the aggregated cells of the IAB node.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the SCS of the primary cell synchronization signal block in the at least two SCSs is a SCS of the primary cell synchronization signal block.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB is the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB.
  • the first indication is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the first indication is applied to at least one of the following:
  • the time domain is configured as a soft-type resource
  • the time domain is configured as a hard-typed resource
  • the time domain is configured as a resource of an unavailable type
  • the time domain is configured as a downlink type resource
  • the time domain is configured as an uplink type resource
  • the time domain is configured as a resource of elastic type
  • the effective time of the first indication is determined according to at least one of the following:
  • the time domain parameter for which the first indication is instructed or configured to take effect is instructed or configured to take effect.
  • the time domain parameter includes at least one of the following: a valid period; a time domain offset; and a time domain resource size.
  • the device further includes:
  • the second receiving module is configured to receive a second indication, wherein the second indication is used to indicate at least one of the size and the position of the available frequency domain of the DU of the IAB node.
  • the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the availability of the time-frequency resources of the DU of the IAB node is determined according to the availability of the DU in the IAB node in the time domain and the frequency domain.
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is of the soft type.
  • the device further includes:
  • the reporting module is used to report the frequency domain resource parameters
  • the frequency domain resource parameters include at least one of the following: the boundary of the frequency domain resources, the range of the frequency domain resources, the size of the frequency domain resources, and the expected availability of the frequency domain resources.
  • the reporting manner of the frequency domain resource parameter includes one of the following: periodic reporting; event-triggered reporting; inquiry-triggered reporting.
  • the information transmission apparatus provided in the embodiment of the present application can implement each process in the method embodiment of FIG. 4 , and in order to avoid repetition, details are not repeated here.
  • the information transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in an IAB node.
  • FIG. 8 is a structural diagram of another information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 8, the information transmission apparatus 800 includes:
  • the first indicating module 801 is configured to indicate the frequency domain availability of the DU of the IAB node to the IAB node.
  • the first indication module is specifically configured to:
  • the first indication is further used to indicate the time domain availability of the DU of the IAB node.
  • the first indication is carried in downlink control information DCI or medium access control control unit MAC CE or radio resource control RRC.
  • the position and/or size of the first indication in the DCI is configured by RRC.
  • the location of the first indication in the DCI is determined according to the location of the time domain availability indication of the DU of the IAB node in the DCI.
  • the position of the first indication in the DCI is one of the following:
  • the position of the last time domain availability indication in the DCI is offset by a first offset value in the DCI, where I is the frequency domain availability indication offset value;
  • the time domain availability indication of the DU of the IAB node is offset by a second offset value in the DCI, where J is the size of the time domain availability indication;
  • the time domain availability of the DU of the IAB node indicates the location in the DCI.
  • the first indication is carried in F1-C signaling or a backhaul adaptive protocol control packet data unit.
  • the device further includes at least one of the following:
  • a second indication module configured to indicate the indication granularity of the frequency domain availability to the IAB node
  • the third indicating module is configured to indicate to the IAB node the SCS for determining the availability of the frequency domain.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the frequency range in which the carrier of the DU of the IAB node is located is located.
  • the indication granularity of the frequency domain availability of the DU of the IAB node is one of the following:
  • N is a positive integer
  • M is a positive integer
  • K is a positive integer
  • L is a positive integer.
  • the RBG is determined according to bandwidth.
  • the subband is determined according to interference-related parameters or channel state information CSI measurement parameters.
  • the subcarrier spacing SCS used to determine the frequency domain availability includes one of the following:
  • the SCS configured in the uplink resource configuration and/or the downlink resource configuration of the DU of the IAB node
  • the SCS corresponding to the frequency range of the aggregated cells of the IAB node.
  • the SCS used to determine the frequency domain availability is one of the following:
  • the SCS of the primary cell synchronization signal block in the at least two SCSs is a SCS of the primary cell synchronization signal block.
  • the SCS used to determine the availability in the frequency domain is one of the following:
  • the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB is the PDCCH of the reference cell of the secondary cell group or the SCS of the SSB.
  • the first indication is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the first indication is applied to at least one of the following:
  • the time domain is configured as a soft-type resource
  • the time domain is configured as a hard-typed resource
  • the time domain is configured as a resource of an unavailable type
  • the time domain is configured as a downlink type resource
  • the time domain is configured as an uplink type resource
  • the time domain is configured as a resource of elastic type
  • the device further includes:
  • a first sending module configured to send the time domain parameter for which the first indication is valid to the IAB node.
  • the time domain parameters include at least one of the following: a valid period; a time domain offset; a time domain resource size.
  • the device further includes:
  • the second sending module is configured to send a second indication, wherein the second indication is used to indicate at least one of the size of the available frequency domain of the DU of the IAB node and the position of the available frequency domain.
  • the frequency domain availability of the DU of the IAB node is determined according to at least one of the following:
  • the duplex mode of the DU and MT of the IAB node is the duplex mode of the DU and MT of the IAB node.
  • the availability of the time-frequency resources of the DU of the IAB node is determined according to the availability of the DU in the IAB node in the time domain and the frequency domain.
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is a soft type
  • the availability of the corresponding time-frequency resource is of the soft type.
  • the device further includes:
  • a receiving module configured to receive the frequency domain resource parameter reported by the IAB node
  • the frequency domain resource parameters include at least one of the following: the boundary of the frequency domain resources, the range of the frequency domain resources, the size of the frequency domain resources, and the expected availability of the frequency domain resources.
  • the reporting manner of the frequency domain resource parameter includes one of the following: periodic reporting; event-triggered reporting; inquiry-triggered reporting.
  • the information transmission apparatus provided in the embodiment of the present application can implement each process in the method embodiment of FIG. 6 , and to avoid repetition, details are not described here.
  • the information transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a parent IAB node of a CU or an IAB node.
  • FIG. 9 is a structural diagram of an IAB node provided by an embodiment of the present application.
  • the IAB node 900 includes: a processor 901, a transceiver 902, a memory 903, and a bus interface, wherein:
  • the transceiver 902 is configured to transmit information according to the frequency domain availability of the distribution unit DU of the IAB node; wherein, the frequency domain availability of the DU of the IAB node is indicated by the parent IAB node of the IAB node, or by the central unit CU configuration, or predefined by the protocol.
  • processor 901 and transceiver 902 can implement each process implemented by the IAB node in the method embodiment of FIG. 4 , and can achieve the same technical effect.
  • the transceiver 902 is configured to receive and transmit data under the control of the processor 901, and the transceiver 902 includes at least two antenna ports.
  • the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 901 and various circuits of memory represented by memory 903 linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 902 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the user interface 904 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 901 is responsible for managing the bus architecture and general processing, and the memory 903 may store data used by the processor 901 in performing operations.
  • this embodiment of the present application further provides an IAB node, including a processor 901, a memory 903, a program or instruction stored in the memory 903 and executable on the processor 901, the program or instruction being executed by the processor
  • an IAB node including a processor 901, a memory 903, a program or instruction stored in the memory 903 and executable on the processor 901, the program or instruction being executed by the processor
  • FIG. 10 is a structural diagram of a network device provided by an embodiment of the present application.
  • the network device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, wherein:
  • the transceiver 1002 is configured to indicate the frequency domain availability of the DU of the IAB node to the IAB node.
  • processor 1001 and transceiver 1002 can implement each process implemented by the network device in the method embodiment of FIG. 6 , and can achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the transceiver 1002 is configured to receive and transmit data under the control of the processor 1001, and the transceiver 1002 includes at least two antenna ports.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 linked together.
  • the bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein.
  • the bus interface provides the interface.
  • Transceiver 1002 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.
  • the user interface 1004 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1001 in performing operations.
  • an embodiment of the present application further provides a network device, including a processor 1001, a memory 1003, a program or instruction stored in the memory 1003 and executable on the processor 1001, the program or instruction being executed by the processor
  • a network device including a processor 1001, a memory 1003, a program or instruction stored in the memory 1003 and executable on the processor 1001, the program or instruction being executed by the processor
  • the embodiments of the present application further provide a readable storage medium, the readable storage medium may be non-volatile or volatile, and a program or an instruction is stored on the readable storage medium, and the program or instruction is stored in the readable storage medium.
  • the processor When executed, the processor implements each process of the above-mentioned embodiments of the information transmission method on the IAB node side or the information transmission method on the network device side, and can achieve the same technical effect. To avoid repetition, details are not described here.
  • the processor is the processor in the IAB node described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running a program or an instruction to implement the above-mentioned IAB node side.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used for running a program or an instruction to implement the above-mentioned IAB node side.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present application further provides a computer program product, wherein the computer program product is stored in a non-transitory readable storage medium, and the computer program product is executed by at least one processor to implement the above-mentioned IAB node side
  • the computer program product is stored in a non-transitory readable storage medium, and the computer program product is executed by at least one processor to implement the above-mentioned IAB node side

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Abstract

本申请提供了一种信息传输方法、装置、IAB节点及网络设备,属于通信技术领域。该方法包括:根据IAB节点的DU的频域可用性进行信息传输;其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。

Description

信息传输方法、装置、IAB节点及网络设备
相关申请的交叉引用
本申请主张在2020年12月18日在中国提交的中国专利申请No.202011507740.6的优先权,其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域,尤其涉及一种信息传输方法、装置、IAB节点及网络设备。
背景技术
自回传(Integrated Access Backhaul,IAB)系统是新空口(New Radio,NR)第十六版本(Release 16,Rel-16)开始制定标准的一项技术。一个IAB节点包括分布单元(Distributed Unit,DU)功能部分和移动设备(Mobile Termination,MT)功能部分。在一个自回传回路中,所有的IAB节点的DU都连接到一个中心单元(Centralized Unit,CU)节点,由CU节点通过F1控制平面接口(F1-C)或称为F1应用协议(F1-AP协议)对DU进行配置,通过无线资源控制(Radio Resource Control,RRC)协议对MT进行配置。IAB系统的引入是为了针对接入点密集部署时,有线传输网部署不到位的情况,即在没有有线传输网络时,接入点可以依赖无线回传。
目前,DU和MT可以采用时分复用(Time Division Multiplexing,TDM)、空分复用(Space Division Multiplexing,SDM)或频分复用(Frequency-division multiplexing,FDM)的复用方式,然而,在DU和MT利用TDM或SDM或FDM的复用方式进行信息传输的情况下,如何利用频域资源来协调IAB节点之间或IAB节点内部的干扰,并没有相关的解决方案。
发明内容
本申请实施例提供一种信息传输方法、装置、IAB节点及网络设备,以提供一种利用频域资源来协调IAB节点之间或IAB节点内部的信息传输的方 式,进而可以减少IAB节点之间或IAB节点内部的干扰。
第一方面,本申请实施例提供了一种信息传输方法,该方法包括:
根据IAB节点的分布单元DU的频域可用性进行信息传输;
其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
第二方面,本申请实施例还提供了一种信息传输方法,该方法包括:
向IAB节点指示所述IAB节点的DU的频域可用性。
第三方面,本申请实施例提供了一种信息传输装置,该装置包括:
传输模块,用于根据IAB节点的分布单元DU的频域可用性进行信息传输;
其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
第四方面,本申请实施例还提供了一种信息传输装置,该装置包括:
第一指示模块,用于向IAB节点指示所述IAB节点的DU的频域可用性。
第五方面,本申请实施例还提供了一种IAB节点,该IAB节点包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第六方面,本申请实施例还提供了一种网络设备,该网络设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如第二方面所述的方法的步骤。
第七方面,本申请实施例还提供了一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤,或者实现如第二方面所述的方法的步骤。
第八方面,本申请实施例还提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如上述第一方面所述的方法,或者实现如上面第二方面所述的方法。
第九方面,提供了一种计算机程序产品,所述计算机程序产品被存储在非瞬态的存储介质中,所述计算机程序产品被至少一个处理器执行以实现如上述第一方面所述的方法,或者实现如上面第二方面所述的方法。
第十方面,提供一种通信设备,被配置为执行如上述第一方面所述的方法,或者执行如上面第二方面所述的方法。
在本申请实施例中,根据IAB节点的DU的频域可用性进行信息传输;其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。通过配置DU的频域可用性来协调IAB节点之间或IAB节点内部的信息传输,可以减少IAB节点之间或IAB节点内部的干扰。
附图说明
图1是本申请实施例提供的一种IAB系统的结构示意图;
图2是本申请实施例提供的一种AB系统的CU-DU的结构示意图;
图3是本申请实施例可应用的一种网络系统的结构图;
图4是本申请实施例提供的一种信息传输方法的流程图;
图5a是本申请实施例提供的频域可用性指示在DCI中的位置的示意图之一;
图5b是本申请实施例提供的频域可用性指示在DCI中的位置的示意图之二;
图5c是本申请实施例提供的频域可用性指示在DCI中的位置的示意图之三;
图6是本申请实施例提供的一种信息传输方法的流程图;
图7是本申请实施例提供的一种信息传输装置的结构图;
图8是本申请实施例提供的另一种信息传输装置的结构图;
图9是本申请实施例提供的一种IAB节点的结构图;
图10是本申请实施例提供的一种网络设备的结构图。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员所获得的所有 其他实施例,都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和/或”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本申请实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。然而,以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,尽管这些技术也可应用于NR系统应用以外的应用,如第6代(6th Generation,6G)通信系统。
为了方便理解,以下对本申请实施例涉及的一些内容进行说明:
自回传(Integrated Access Backhaul,IAB):
IAB系统是新空口(New Radio,NR)第十六版本(Release 16,Rel-16)开始制定标准的一项技术。如图1所示的IAB系统的结构示意图,一个IAB节点包括分布单元(Distributed Unit,DU)功能部分和移动设备(Mobile Termination,MT)功能部分。依靠MT,一个接入IAB节点(即IAB node)可以找到一个上游IAB节点(即parent IAB node),并跟接入IAB节点的DU建立无线连接,该无线连接被称为回传链接(即backhaul link)。在一个IAB节点建立完整的回传链路后,该IAB节点打开其DU功能,DU会提供小区 服务,即DU可以为UE提供接入服务。一个自接入回传回路还包含一个宿主IAB节点(即donor IAB node),宿主IAB节点有直接相连的有线传输网。
图2是一种IAB系统的中心单元-分布单元(Centralized Unit-Distributed Unit,CU-DU)的结构示意图。在一个自接入回传回路中,所有的IAB节点的DU都连接到一个CU节点,该CU节点包括CU控制面(即CU-CP)和CU用户面(即CU-UP),由CU节点通过F1-C或称为F1-AP(即F1应用协议)协议对DU进行配置,通过无线资源控制(Radio Resource Control,RRC)协议对MT进行配置。宿主IAB节点没有MT功能部分。IAB系统的引入是为了针对接入点密集部署时,有线传输网部署不到位的情况,即在没有有线传输网络时,接入点可以依赖无线回传。
DU和MT的双工(Duplexing)方式或复用方式:
DU和MT在时分复用(Time-Division Multiplexing,TDM)的资源复用方式下,DU的收发操作和MT的收发操作是时分复用的(TDMed),需要说明的是,该双工方式为半双工。
DU和MT在频分复用(Frequency Division Multiplexing,FDM)或者空分复用(Space Division Multiplexing,SDM)的资源复用方式下,DU和MT的收发操作方式可以包括以下几种双工方式或复用方式:
分布单元发射端口(Distributed Unit Transmit X,DU-TX)&移动终端发射端口(Mobile Termination Transmit X,MT-TX),即DU配置为下行链路(Downlink,DL),MT配置为上行链路(Uplink,UL);或DU存在实际的DL发送,MT存在实际的UL发送;
分布单元接收端口(Distributed Unit Receive X,DU-RX)&移动终端接收端口(Mobile Termination Receive X,MT-RX),即DU配置为UL,MT配置为DL;或DU存在实际的UL接收,MT存在实际的DL接收;
DU-TX&MT-RX,即DU配置为DL,MT配置为DL;或DU存在实际的DL发送,MT存在实际的DL接收;
DU-RX&MT-TX,即DU配置为UL,MT配置为UL;或DU存在实际的UL接收,MT存在实际的UL发送。
需要说明的是,本申请实施例中DU TX和DU DL可以通用,MT TX和 MT UL可以通用,DU RX和DU UL可以通用,MT RX和MT DL可以通用。
此外,弹性(即flexible)配置可以等同于DL/UL配置处理,也可以独立于DL/UL配置处理。
DU的资源配置:
Rel-16IAB网络中宿主节点CU通过F1-AP(或者说F1-C)中的信令gNB-DU资源配置(即gNB-DU resource configuration)来配置DU的时域资源。其中,配置每个时隙中符号(symbol)的传输的类型,符号类型包括DL/UL/灵活符号(flexible symbol)。配置DU的每个类型的符号的可用性,可以包括硬(hard)类型/软(soft)类型/不可用(Not Available,NA)类型/分享(shared)类型的配置。其中,可用性是以符号类型为配置单位的,具体可以包括如下几种情况。
若DL符号被配置为hard类型,则IAB DU可以在该符号上发送;若UL符号被配置为hard类型,则IAB DU可以在该符号上接收;若灵活(flexible)符号被配置为hard类型,则IAB DU可以在该符号上发送或者接收。
若DL符号被配置为soft类型,若IAB DU的发送不影响MT的发送或接收时,IAB DU可以在该符号上发送;否则,在该符号上不进行发送;若UL符号被配置为soft类型,若IAB DU的接收不影响MT的发送或接收时,IAB DU可以在该符号上接收;否则,在该符号上不进行接收;若flexible符号被配置为soft类型,若IAB DU的发送或接收不影响MT的发送或接收时,IAB DU可以在该符号上发送或接收;否则,在该符号上不进行发送或接收。进一步地,IAB父节点可以通过下行控制信息(Downlink Control Information,DCI)格式2_5(format 2_5)(即DCI format 2_5)指示IAB DU的软符号(soft symbol)的可用性。
若DL/UL/flexible symbol被配置为NA类型,则IAB DU在该符号上不发送也不接收。
若DL/UL/flexible symbol被配置为了分享(shared)类型,则IAB DU在该符号上可能可以和IAB MT同时进行数据的收发。
DU的可用频域资源为DU小区(cell)的带宽。CU可以配置DU能够使用的若干载波(carrier),DU可以调度所配置的载波上的资源。
对于DU的频域资源,频域资源的可用性可以被配置为hard类型/soft类型/NA类型/shared类型。其中:
若频域资源被配置为hard类型,则IAB DU可以在该频域资源上发送/接收/发送或者接收;
若DL频域资源被配置为soft类型,则IAB DU在该DL频域资源上的发送不影响MT的发送或接收时,IAB DU可以在该DL频域资源上发送;否则,在该DL的频域资源上不进行发送;若UL频域资源被配置为soft类型,则IAB DU在该UL频域资源上的接收不影响MT的发送或接收时,IAB DU可以在该UL频域资源上接收;否则,在该UL频域资源上不进行接收;若flexible频域资源被配置为soft类型,则IAB DU在该flexible频域资源上的发送或接收不影响MT的发送或接收时,IAB DU可以在该flexible频域资源上发送或接收;否则,在该flexible频域资源上不进行发送或接收。
若频域资源被配置为NA类型,则IAB DU在该频域资源上不发送也不接收;
若频域资源被配置为shared类型,则IAB DU在该频域资源上可以和IAB MT同时进行数据的收发。
下行控制信息(Downlink control information,DCI)格式2_5(format 2_5)(即DCI format 2_5)配置:
对于每个IAB节点,或者IAB DU的每个小区提供以下信息:
IAB DU服务小区的标识(iabDuCellId-AI);
一个可用性指示(Availability Indicator,AI)(以下简称为AI)在DCI format2_5中的位置(positionInDCI-AI);
一组可用性组合指示(AvailabilityCombinations),其中,每个可用性组合指示包括:
资源可用性指示(resourceAvailability),用于指示一个或多个时隙中的soft类型符号资源的可用性;
由资源可用性指示(resourceAvailability)提供的Soft类型符号可用性组合到由可用性组合标识(AvailabilityCombinationId)提供的DCI format 2_5的相应的可用性指示索引字段值的映射。
IAB-DU假设可用性组合采用IAB-DU上下行配置(IAB-DU-Resource-Configuration-TDD-Config)提供的SCS的配置。
DCI format 2_5中的一个AI指示为IAB DU指示一个或多个时隙的可用性。其中,AI指示的大小为max{ceil(log2(maxAIindex+1)),1}比特(bit),其中,maxAIindex表示最大的AI索引(index)。一个soft类型符号的可用性根据AI索引以及无线资源控制(Radio Resource Control,RRC)配置的表格获取。具体地,一个时隙(slot)内的soft类型符号的可用性指示可以如表1所示。
表1资源可用性索引的值与时隙中软符号可用性类型之间的映射
Figure PCTCN2021137735-appb-000001
其中,一种可选地RRC的配置的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000002
Figure PCTCN2021137735-appb-000003
需要说明的是,采用上述方式,根据DCI format 2_5中时域可用性指示,先找到对应的时域指示编号(Entry),然后在时域指示编号下,再根据频域可用性指示,找到对应的频域可用性组合。也即频域资源指示是内嵌在每个时域指示编号下的指示。
图3示出本申请实施例可应用的一种无线通信系统的结构图。无线通信系统包括IAB节点11和网络设备12。其中,网络设备12可以是IAB节点11的父IAB节点或者CU。
下面结合附图,通过具体的实施例及其应用场景对本申请实施例提供的信息传输方法进行详细地说明。
请参见图4,图4是本申请实施例提供的一种信息传输方法的流程图,该方法可以由自回传IAB节点执行,如图4所示,包括以下步骤:
步骤401、根据IAB节点的DU的频域可用性进行信息传输;
其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
本申请实施例中,IAB节点的DU也可以称为IAB DU。此外,IAB节点的MT也可以称为IAB MT。
上述频域可用性可以是指频域资源的可用性。可选地,上述频域可用性可以包括硬(hard)类型、软(soft)类型、不可用(NA)类型和分享(shared)类型中的至少一项。其中,频域可用性为硬类型的频域资源仅可被IAB DU使用;频域可用性为软类型的频域资源仅在不影响IAB MT收发时可被IAB DU使用;频域可用性为不可用类型的频域资源不可被DU使用;频域可用性为分享类型的频域资源可被IAB DU和IAB MT同时使用。
可选地,上述频域可用性也可以包括只支持TDM和支持同时传输(Simultanesouly Transmission),其中,支持同时传输表示支持MT和DU在相同的时域资源上传输信息;或者包括复用方式A、复用方式B、复用方式C、复用方式D和只支持TDM中的至少一项。
其中,上述复用方式A可以表示DU-TX&MT-TX,即DU配置为DL,MT配置为UL;上述复用方式B可以表示DU-RX&MT-RX,即DU配置为UL,MT配置为DL;上述复用方式C可以表示DU-TX&MT-RX,即DU配置为DL,MT配置为DL;上述复用方式D可以表示DU-RX&MT-TX,即DU配置为UL,MT配置为UL。
上述IAB节点的DU的频域可用性可以由该IAB节点的父IAB节点指示,例如,上述父IAB节点可以通过DCI、媒体接入控制(Media Access Control,MAC)控制单元(Control,Element,CE)(即MAC CE)或者RRC等指示上述IAB节点的DU的频域可用性;或者上述IAB节点的DU的频域可用性可以由CU指示,例如,CU可以通过F1-C、回传自适应协议控制分组数据单元(Backhaul Adaptation Protocol control Packet Data Unit,BAP control PDU)等指示上述IAB节点的DU的频域可用性;或者上述IAB节点的DU 的频域可用性可以由协议预定义。
需要说明的是,上述IAB节点的DU的频域可用性可以是显示配置的,例如,通过RRC、F1-C、DCI或MAC CE等信令发送DU的频域可用性指示给IAB节点;也可以是隐式配置的,例如,规定在IAB MT的频域资源与IAB DU的频域资源有重叠的情况下IAB DU的频域资源的频域可用性为soft类型,或者重叠部分的频域资源的频域可用性为soft类型。
本申请实施例提供的信息传输方法,根据IAB节点的分布单元DU的频域可用性进行信息传输;其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。通过配置DU的频域可用性来协调IAB节点之间或IAB节点内部的信息传输,可以减少IAB节点之间或IAB节点内部的干扰。
可选地,所述方法还可以包括:
接收第一指示,所述第一指示用于指示如下至少一项:
所述IAB节点的DU的频域可用性;
频域可用性组合的索引和频域可用性组合的映射关系;
频域可用性组合;
频域可用性组合的索引。
本申请实施例中,上述频域可用性组合可以包括多个频域资源的可用性,例如,上述频域可用性组合可以包括部分或者全部soft类型的频域资源的可用性;或者包括部分或全部频域资源的可用性;或者包括多种类型(即hard,soft,NA等)的频域资源的可用性;或者包括多种复用方式或双工方式(即MT TX/DU TX,MT RX/DU RX,MT TX/DU RX,MT RX/DU TX,TDM等)的频域资源的可用性;或者包括多种链路方向(即UL/DL/Flexbile)的频域资源的可用性;或者包括多个时隙或者符号的频域资源的可用性等,本申请实施例对此不做限定。
例如,上述频域可用性组合可以包括UL频域资源的可用性、DL频域资源的可用性和弹性频域资源的可用性;或者上述频域可用性组合可以包括软类型的频域资源的可用性和硬类型的频域资源的可用性;或者上述频域可用性组合可以包括软类型的频域资源中的UL频域资源的可用性、软类型的频 域资源中的DL频域资源的可用性和软类型的频域资源中的弹性频域资源的可用性等。
上述频域可用性组合的索引(index)与频域可用性组合之间存在映射关系,IAB节点基于上述频域可用性组合的索引以及频域可用性组合的索引与频域可用性组合之间的映射关系可以查找到对应的频域可用性组合。
需要说明的是,上述IAB DU频域可用性和IAB DU的时域可用性可以分别指示,也即上述第一指示可以仅用于指示IAB DU频域可用性;上述IAB DU频域可用性和IAB DU的时域可用性也可以联合指示,也即上述第一指示可以用于指示频域可用性和时域可用性。
本申请实施例中,IAB节点的父IAB节点或者CU可以向该IAB节点发送第一指示,从而IAB节点可以基于第一指示可以确定IAB DU的频域可用性,并基于IAB DU的频域可用性进行信息传输,进而可以减少IAB节点之间或IAB节点内部的干扰。此外,由于IAB节点的父IAB节点或者CU通过第一指示向IAB节点显示指示IAB DU的频域可用性,不仅可以提高确定IAB DU的频域可用性的效率,还可以提高IAB DU的频域可用性配置的灵活性。
可选地,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
本申请实施例中,上述IAB DU频域可用性和IAB DU的时域可用性联合指示,也即上述第一指示可以用于指示IAB DU的频域可用性和时域可用性,这样可以节省配置信令。
可选地,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC或者F1-C信令或者回传自适应协议控制分组数据单元。
本申请实施例中,在由IAB节点的父IAB节点向该IAB节点指示DU的频域可用性的情况下,第一指示可以承载于DCI或者MAC CE或者RRC;在由CU向该IAB节点指示DU的频域可用性的情况下,上述第一指示可以承载于F1-C信令或者BAP control PDU。
需要说明的是,在所述第一指示承载于DCI的情况下,上述DCI可以仅用于承载DU的频域可用性指示,也即上述第一指示;也可以同时承载DU的频域可用性指示和时域可用性指示。
可选地,上述DCI可以是DCI format 2_5或下行控制信息(Downlink Control Information,DCI)格式2_0(format 2_0)(即DCI format 2_0),也可以是新定义的DCI的格式,例如,定义的专用于DU的频域可用性指示的DCI。
可选地,上述DCI可以是采用特定的无线网络临时标识(Radio Network Temporary Identifier,RNTI)加扰的DCI;或者是在特定的搜索空间中获取的DCI;或者是在特定的控制资源集合中获取的DCI。
可选地,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
上述第一指示在DCI中的位置可以包括第一指示在DCI中的起始位置、第一指示在DCI中的结束位置和第一指示在DCI中的位置范围中的至少一项。
具体地,IAB节点的父IAB节点可以通过RRC向该IAB节点配置第一指示在所述DCI中的位置和/或大小,这样该IAB节点可以基于第一指示在所述DCI中的位置和/或大小快速地从DCI中获取到第一指示。
本申请实施例通过RRC配置第一指示在所述DCI中的位置和/或大小,可以提高第一指示配置的灵活性。
可选地,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
本申请实施例中,IAB DU的频域可用性指示在DCI中的位置与该IAB DU的时域可用性指示在该DCI中的位置相关,这样IAB节点可以基于IAB DU的时域可用性指示在该DCI中的位置确定IAB DU的频域可用性指示(也即第一指示)在DCI中的位置,可以节省频域可用性指示位置的指示信令开销。
可选地,所述第一指示在所述DCI中的位置为如下一项:
所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,所述第一偏移值为频域可用性指示的偏移值;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏移值,其中,所述第二偏移值为所述时域可用性指示的大小;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
本申请实施例中,上述第一偏移值的取值可以由父IAB节点或CU指示, 或者由协议预定义,或者根据时域可用性指示的大小确定。
上述DCI中最后一个时域可用性指示在所述DCI中的位置(positionInDCI-AIlast)可以是上述DCI中最后一个时域可用性指示在所述DCI中的起始位置或结束位置等。
上述IAB节点的DU的时域可用性指示在所述DCI中的位置可以是IAB DU的时域可用性指示在所述DCI中的起始位置或者结束位置等。
在一实施方式中,IAB DU的频域可用性指示(即第一指示)在所述DCI中的位置可以为所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值。例如,如图5a所示,频域可用性指示在DCI中的位置或起始位置(也即频域可用性指示字段位置)=positionInDCI-AIlast+position indicator size,其中,positionInDCI-AIlast为DCI中最后一个时域可用性指示在所述DCI中的位置或起始位置,position indicator size为时域可用性指示的大小。
在另一实施方式中,IAB DU的频域可用性指示(即第一指示)在所述DCI中的位置可以为对应的时域可用性指示在所述DCI中的位置偏移第二偏移值。
例如,如图5b所示,频域可用性指示在DCI中的位置或起始位置(也即频域可用性指示字段位置)=positionInDCI-AI+position indicator size,其中,positionInDCI-AI为IAB DU的时域可用性指示在所述DCI中的位置或起始位置,position indicator size为时域可用性指示的大小。
在另一实施方式中,IAB DU的频域可用性指示(即第一指示)在所述DCI中的位置可以为对应的时域可用性指示在所述DCI中的位置。例如,如图5c所示,频域可用性指示在DCI中的位置或起始位置(也即频域可用性指示字段位置)=positionInDCI-AI,其中,positionInDCI-AI为IAB DU的时域可用性指示在所述DCI中的位置或起始位置。本实施方式可以复用positionInDCI-AI,而无需定义新的字段位置指示。
可选地,RRC中携带的参数positionInDCI-AI可以表示第一小区的时域有用性指示在DCI中的起始位置,第一小区的频域可用性指示在DCI中位置在时域指示后;或者,RRC中携带的参数positionInDCI-AI表示第一小区的 时频域的可用性指示,时频域可用性指示的大小为max{ceil(log2(maxAIindex+1)),1}比特,其中,maxAIindex表示最大的AI索引。
可选地,所述方法还包括:
根据所述第一指示所指示的频域可用性组合的索引和第一映射关系确定所述IAB节点的DU的频域可用性,其中,所述第一映射关系为频域可用性组合的索引和频域可用性组合的映射关系。
本申请实施例中,在所述第一指示指示频域可用性组合的索引的情况下,IAB节点可以根据第一指示所指示的频域可用性组合的索引以及频域可用性组合的索引和频域可用性组合的映射关系确定IAB DU的频域可用性,其中,上述频域可用性组合的索引和频域可用性组合的映射关系可以由CU或父IAB节点通过RRC配置,也可以由协议预定义。
例如,父IAB节点可以通过RRC配置频域可用性组合列表,也即上述频域可用性组合的索引和频域可用性组合的映射关系,父IAB节点通过DCI向IAB节点指示频域可用性组合的索引。IAB节点根据DCI指示的频域可用性组合的索引在频域可用性组合列表中查找频域可用性组合,以此来确定频域可用性。
可选地,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
F1-C或RRC或MAC CE或DCI或BAP control PDU所指示的频域可用性的指示粒度;
协议预定义的频域可用性的指示粒度;
预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
所述第一指示的大小;
所述IAB节点的DU的可用频域资源;
所述IAB节点的DU的实际调度的频域资源;
所述IAB节点的DU的载波所处的频率范围。
本申请实施例中,在IAB节点的DU的频域可用性的指示粒度由父IAB节点指示的情况下,父IAB节点可以通过RRC或MAC CE或DCI向该IAB节点指示频域可用性的指示粒度,在IAB节点的DU的频域可用性的指示粒度由CU指示的情况下,CU可以通过F1-C向该IAB节点指示频域可用性的指示粒度。
上述IAB节点的MT的可配置带宽范围也可以称为IAB MT的带宽部分(Bandwidth Part,BWP)范围。
上述根据IAB DU的可用频域资源或实际调度的频域资源确定IAB DU的频域可用性的指示粒度,可以是根据IAB DU的可用频域资源或实际调度的频域资源的大小和/或频域可用性指示信令的大小确定IAB DU的频域可用性的指示粒度,例如,IAB DU的可用频域资源或实际调度的频域资源越大,指示信令大小不变,则IAB DU的频域可用性的指示粒度越大。
又例如,自载波或BWP的下边沿向上边沿对应0,1/4,1/2,3/4,1,也即把IAB DU的频域资源分为4个部分来进行指示。
对于上述根据IAB DU的载波所处的频率范围确定IAB DU的频域可用性的指示粒度,具体地,可以分别为不同频率范围配置不同的频域可用性的指示粒度,这样可以根据IAB DU的载波所处的频率范围确定其对应的频域可用性的指示粒度。例如,IAB聚集小区包括FR1的小区和FR2的小区,则可以分别为FR1的小区和FR2的小区配置对应的频域可用性的指示粒度。需要说明的是,除了按FR1和FR2划分外,还可以有更多的划分方式,例如,6GHz以下,6~30GHz,30~100gHz,每个频率范围分别配置有对应的频域可用性的指示粒度。
可选地,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
每N个物理资源块(Physical Resource Block,PRB),N为正整数;
每M个资源块组(Resource Block Group,RBG),M为正整数;
每K个载波,K为正整数;
每L个子带,L为正整数。
本申请实施例中,上述N、M、K和L中的至少一项的取值可以由父IAB节点指示或由CU指示,也可以由协议预定义。
可选地,父IAB节点可以通过MAC CE或DCI指示上述N、M、K和L中的至少一项的取值。上述CU可以通过F1-C指示上述N、M、K和L中的至少一项的取值。
上述RBG可以是对资源块(Resource Block,RB)分组得到的。可选地,所述RBG可以根据带宽确定,也即RB分组和带宽相关。
例如,可以预定义或者预配置资源块大小与带宽的对应关系,这样CU或者父IAB节点可以根据带宽以及指示粒度/资源组大小与带宽的对应关系获取指示信息的大小;从而,IAB DU根据指示信息以及指示粒度/资源组大小与带宽的对应关系可以获取频域资源范围,进而可以根据频域资源范围和指示信息确定频域可用性。
需要说明的是,上述RBG可以和Rel-16中定义的RBG的概念可以相同,也可以是新定义的资源块组,本申请实施例对此不做限定。
可选地,所述子带根据干扰相关参数或信道状态信息(Channel State Information,CSI)测量参数确定。
本申请实施例中,上述子带(subband)可以和干扰相关参数相关,或者和CSI测量参数相关。其中,上述干扰相关参数可以包括但不限于干扰等级、干扰门限等中的至少一项。上述CSI测量参数可以包括但不限于CSI测量的参考信号、测量门限、测量时频资源等中的至少一项。
可选地,用于确定所述频域可用性的子载波间隔(Subcarrier Space,SCS)可以包括如下至少之一:
F1-C、RRC、MAC CE、DCI或BAP control PDU所指示的SCS;
所述IAB节点的DU的时域可用性组合对应的SCS;
所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
所述IAB节点的主小区(Primary Cell,PCell)的物理下行控制信道(Physical Downlink Shared Channel,PDCCH)或同步信号块(Synchronous Signal Block,SSB)的SCS;
与所述IAB节点的聚集小区的频率范围对应的SCS。
本申请实施例中,上述父IAB节点可以通过RRC、MAC CE或DCI向IAB节点指示用于确定所述频域可用性的SCS。CU可以通过F1-C或回传自适应协议控制分组数据单元指示用于确定所述频域可用性的SCS。
需要说明的是,上述F1-C、RRC、MAC CE、DCI或BAP control PDU所指示的SCS,可以是F1-C、RRC、MAC CE、DCI或回传自适应协议控制分组数据单元直接指示的用于确定所述频域可用性的SCS,也可以F1-C、RRC、MAC CE、DCI或回传自适应协议控制分组数据单元指示的参数对应的SCS,例如,父IAB节点的DU的SSB的SCS或PDCCH的SCS。
上述时域可用性组合可以是上述的availabilityCombinations。上述上行链路资源配置和/或下行链路资源配置可以是上述的IAB-DU-Resource-Configuration-TDD-Config。
对于与所述IAB节点的聚集小区的频率范围对应的SCS,具体地,可以分别为不同的频率范围的聚集小区配置对应的SCS,例如,分别为FR1的小区和FR2的小区配置或预定义对应的SCS。可选地,若FR1的小区和FR2的小区有PCell或主辅小区(Primary Secondary Cell,PSCell),则参考PCell或PSCell的SSB或PDCCH的SCS,否则,参考指定小区(如频率最低的小区)的SSB或PDCCH的SCS。需要说明的是,除了按FR1和FR2划分外,还可以有更多的划分方式,例如,6GHz以下,6~30GHz,30~100gHz,每个频率范围的小区分别配置有对应的SCS。
可选地,在所述上行链路资源配置和/或下行链路资源配置中有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
所述至少两个SCS中的最大SCS;
所述至少两个SCS中的最小SCS;
所述至少两个SCS中主小区同步信号块的SCS。
本申请实施例中,在存在多个上行链路资源配置和/或下行链路资源配置(IAB-DU-Resource-Configuration-TDD-Config)且上述多个上行链路资源配置和/或下行链路资源配置提供了不同的SCS配置的情况下,例如,对应于IAB的MT处于双连接状态的场景,用于确定所述频域可用性的SCS配置可以为 上述不同的SCS配置中的最大的SCS配置或者最小的SCS配置或者PCell SSB的SCS配置。或者在上述上行链路资源配置和/或下行链路资源配置提供了多个SCS配置的情况下,用于确定所述频域可用性的SCS配置可以为上述多个SCS配置中的最大的SCS配置或者最小的SCS配置或者PCell SSB的SCS配置。
可选地,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
主小区的SCS;
主辅小区的SCS;
所述至少两个SCS中最大的SCS;
所述至少两个SCS中最小的SCS;
主小区组的主小区的PDCCH或SSB的SCS;
主小区组的参考小区的PDCCH或SSB的SCS;
辅小区组的参考小区的PDCCH或SSB的SCS。
本申请实施例中,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,例如,对应于IAB的MT处于双连接状态的场景,上述用于确定所述频域可用性的SCS可以为其中PCell或PSCell的SCS,或者其中最大或最小的SCS,或者其中MCG的PCell的PDCCH或SSB的SCS,或者其中MCG的参考小区的PDCCH或SSB的SCS,或者其中SCG的参考小区的PDCCH或SSB的SCS。
可选地,所述第一指示根据如下至少一项确定:
时域资源配置;
频域资源配置;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
在一实施方式中,上述IAB DU的频域可用性可以和上述时域资源配置相关,其中,上述时域资源配置可以包括时域资源的可用性配置。具体地,父IAB节点或者CU可以根据时域资源配置进行频域资源的可用性配置,也即第一指示所指示内容的配置。例如,为时域可用性配置为软类型的资源配 置频域可用性,也即上述第一指示用于指示时域可用性配置为软类型的资源的频域可用性,或者说第一指示应用于时域可用性配置为软类型的资源。
在另一种实施方式中,上述IAB DU的频域可用性可以和频域资源配置相关。可选地,父IAB节点或CU可以在配置了IAB节点的DU的频域资源的可用性的情况下,进一步指示IAB节点的DU的频域资源的可用性。例如,CU可以通过F1-C发送第三指示以配置IAB节点的DU的频域资源的可用性,父IAB节点可以通过DCI或MAC CE发送第一指示进一步指示IAB节点的DU的可用资源中配置了频域可用性的频域资源的可用性。
又例如,父IAB节点可以为频域可用性配置为软类型的资源进一步指示频域可用性,也即上述第一指示用于指示频域可用性配置为软类型的资源的频域可用性,或者说第一指示应用于频域可用性配置为软类型的资源。
例如,DU的频域资源的可用性类型可以包括硬(hard)类型、软(soft)类型、NA类型和分享(Shared)类型中的至少一种,DU的频域资源可以被配置为不同的可用性类型,针对频域可用性配置为soft类型的频域资源,父IAB节点或CU可以进一步指示其可用性。
在另一实施方式中,上述IAB DU的频域可用性可以和资源复用模式相关,其中,上述资源复用模式可以包括TDM、FDM和SDM等中的至少一项。具体地,父IAB节点或者CU可以根据资源复用模式进行频域资源的可用性配置,也即第一指示所指示内容的配置。例如,为资源复用模式为TDM的资源配置频域可用性,也即上述第一指示用于指示DU和MT处于TDM的资源复用模式下的资源的频域可用性,或者说第一指示应用于DU和MT处于TDM的资源复用模式下的资源,或者说第一指示生效的时间为DU和MT处于TDM的资源复用模式的的时间。
可选地,携带所述第一指示的信令中可以携带指示信息指出该第一指示针对的资源复用模式。
在另一实施方式中,上述IAB DU的频域可用性可以和双工方式相关,其中,上述双工方式可以包括上述MT TX/DU TX、MT TX/DU RX、MT RX/DU RX、MT RX/DU TX、仅支持MT TX(only MT TX)、仅支持MT RX(only MT RX)、仅支持DU TX(only DU TX)和仅支持DU RX(only DU RX) 中的至少一种。具体地,父IAB节点或者CU可以根据双工方式进行频域资源的可用性配置,也即第一指示所指示内容的配置。例如,为双工方式为DU-TX&MT-TX的资源配置频域可用性,也即上述第一指示用于指示DU和MT处于DU-TX&MT-TX的双工方式下的资源的频域可用性,或者说第一指示应用于DU和MT处于DU-TX&MT-TX的双工方式下的资源,或者说第一指示生效的时间为DU和MT处于DU-TX&MT-TX的双工方式的时间。
可选地,携带所述第一指示的信令中可以携带指示信息指出该第一指示针对的双工方式。
可选地,所述第一指示应用于如下至少一项:
时域配置为软类型的资源;
时域配置为硬类型的资源;
时域配置为不可用类型的资源;
时域配置为下行链路类型的资源;
时域配置为上行链路类型的资源;
时域配置为弹性类型的资源;
每个时隙或者每个符号对应的资源。
上述第一指示应用于时域配置为软类型的资源,也即上述第一指示用于指示时域配置为软类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为软类型的资源配置频域可用性。
上述第一指示应用于时域配置为硬类型的资源,也即上述第一指示用于指示时域配置为硬类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为硬类型的资源配置频域可用性。
上述第一指示应用于时域配置为不可用类型的资源,也即上述第一指示用于指示时域配置为不可用类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为不可用类型的资源配置频域可用性。
上述第一指示应用于时域配置为DL类型的资源,也即上述第一指示用于指示时域配置为DL类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为DL类型的资源配置频域可用性。
上述第一指示应用于时域配置为UL类型的资源,也即上述第一指示用 于指示时域配置为UL类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为UL类型的资源配置频域可用性。
上述第一指示应用于时域配置为弹性类型的资源,也即上述第一指示用于指示时域配置为弹性类型的资源的时域可用性。具体地,父IAB节点或者CU可以为时域配置为弹性类型的资源配置频域可用性。
上述第一指示应用于每个时隙或者每个符号对应的资源,也即上述第一指示用于指示每个时隙或者每个符号对应的资源的时域可用性。具体地,父IAB节点或者CU可以为每个时隙或者每个符号配置频域可用性。
可选地,所述第一指示可以应用于时域配置为软类型且为弹性类型的资源,也即所述第一指示可以用于指示时域配置为软类型且为弹性类型的资源的频域可用性。
可选地,所述第一指示的生效时间根据如下至少一项确定:
预定义的所述第一指示生效的时域参数;
指示或配置的所述第一指示生效的时域参数。
本申请实施例中,上述生效时间可以理解为生效的时间窗口,可以包括生效开始时刻和生效结束时刻。上述指示或配置的所述第一指示生效的时域参数可以是通过F1-C、RRC、MAC CE或DCI指示的所述第一指示生效的时域参数。上述时域参数可以包括但不限于生效周期、时域偏移、时域资源大小、频域资源大小和频域资源位置(含起点和终点)等中的至少一项。
可选地,所述时域参数可以包括如下至少一项:生效周期;时域偏移;时域资源大小。
上述时域偏移可以表示所述第一指示开始生效的起始时刻相对于参考时刻的偏移。其中,上述时域偏移可以是固定值,也可以是可变值。上述参考时刻可以是上述第一指示的接收时刻,或者根据上述第一指示的接收时刻确定的时间点。
例如,若第一指示的接收时刻为DU小区的某个符号或子时隙(sub-slot)或时隙(slot),则第一指示的生效开始时刻可以为该符号或子时隙或时隙之后的S个符号或子时隙或时隙,上述S为上述时域偏移。
上述时域资源大小可以包括时隙数、符号数等。
例如,预配置频域可用性指示生效的时域资源大小为10个时隙,IAB节点收到父IAB节点指示IAB DU在时隙P为hard类型,则IAB DU在时隙P到时隙P+9的范围内,在对应的频域范围内均认为其频域可用性为hard类型,并根据该频域可用性类型进行调度,其中,P为正整数。即假设DU会连续占用一段资源进行传输,以减少在每个时域单位(例如,时隙)上进行频域可用性指示,以节约指示信令的开销。
可选地,所述第一指示的生效时间也可以根据频域参数确定,上述频域参数可以包括频域资源大小和频域资源位置等中的至少一项,上述频域资源位置可以包括频域资源的起始位置和结束位置。
例如,预配置频域可用性指示生效的频域资源为20个PRB;IAB节点收到父IAB节点或CU指示IAB DU在第Q个PRB为软类型,则IAB DU在频域资源第Q个PRB到第Q+19的PRB的资源为软类型,IAB节点根据配置的频域可用性类型进行调度,其中,P为正整数。
可选地,所述方法还可以包括:
接收第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和位置中的至少一项。
本申请实施例中,上述父IAB节点或CU可以向IAB节点指示IAB DU可用频域的大小和位置中的至少一项。
例如,IAB节点配置有多个DU小区,父IAB节点可以直接动态指示多个DU小区中部分小区为DU可用的小区。
又例如,对于配置给IAB DU的某个小区,父IAB节点可以直接动态指示该小区内的部分频域资源为DU可用的资源。
又例如,对于配置给IAB DU的某个小区,并配置了该小区中的部分资源为DU半静态可用资源,父IAB节点可以动态指示上述半静态可用资源中的部分资源为DU的实际可用资源。
需要说明的是,上述DU实际可用资源可以为半静态配置的资源和动态指示的资源的交集或并集。
可选地,所述IAB节点的DU的频域可用性根据如下至少一项确定:
所述IAB节点的DU的频域资源;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
在一实施方式中,可以根据IAB节点的DU的频域资源确定IAB节点的DU的频域可用性。可选地,可以根据IAB节点的DU的频域资源和所述IAB节点的MT的频域资源确定IAB节点的DU的频域可用性。例如,若MT的频域资源与DU的频域资源有重叠,则DU的频域资源的可用性为soft类型,或者重叠部分的频域资源的可用性为soft类型。
在另一实施方式中,可以根据所述IAB节点的DU和MT的资源复用模式确定所述IAB节点的DU的频域可用性,其中,上述资源复用模式可以包括TDM、FDM和SDM等中的至少一项。具体的,不同的资源复用模式可以分别对应不同的频域可用性类型,例如,FDM对应于soft类型,TDM对应NA类型,SDM对应hard类型等。这样IAB节点基于DU和MT当前的资源复用模式即可确定对应的DU的频域可用性。
在另一实施方式中,可以根据所述IAB节点的DU和MT的双工方式确定所述IAB节点的DU的频域可用性,其中,上述双工方式可以包括MT TX/DU TX、MT TX/DU RX、MT RX/DU RX、MT RX/DU TX、仅支持MT TX(only MT TX)、仅支持MT RX(only MT RX)、仅支持DU TX(only DU TX)和仅支持DU RX(only DU RX)中的至少一种。具体的,不同的双工方式可以分别对应不同的频域可用性类型,例如,DU-TX&MT-TX对应于soft类型,DU-RX&MT-RX对应NA类型,DU-TX&MT-RX对应hard类型等。这样IAB节点基于DU和MT当前的双工方式即可确定对应的DU的频域可用性。
可选地,所述IAB节点的DU的时频资源的可用性可以根据所述IAB节点的DU的时域可用性和频域可用性确定。
例如,若IAB节点的DU的时域可用性的类型和频域可用性的类型相同,则IAB节点的DU的时频资源的可用性的类型为该相同的类型;若IAB节点的DU的时域可用性的类型和频域可用性的类型不相同,则IAB节点的DU的时频资源的可用性的类型可以为IAB节点的DU的时域可用性的类型,或者为IAB节点的频域可用性的类型。
可选地,对于soft类型的时频资源,如果DU可预先判定该时频资源不 会被MT使用,则该时频资源可以为DU的可用资源。
可选地,若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
可选地,所述方法还可以包括:
上报频域资源参数;
其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
本申请实施例中,IAB节点可以向父IAB节点或CU上报频域资源参数。可选地,IAB节点可以通过辅助信息(Assistant Information)、MAC CE或BAP control PDU向父IAB节点或CU上报频域资源参数。
可选地,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问(poll)触发上报。
请参见图6,图6是本申请实施例提供的另一种信息传输方法的流程图,该方法由网络设备执行,如图6所示,包括以下步骤:
步骤601、向IAB节点指示所述IAB节点的DU的频域可用性。
本申请实施例中,上述网络设备可以是IAB节点的父IAB节点,也可以是CU。例如,上述父IAB节点可以通过DCI、MAC CE或者RRC等指示上述IAB节点的DU的频域可用性;或者CU可以通过F1-C、BAP control PDU等指示上述IAB节点的DU的频域可用性。
需要说明的是,本实施例作为图4所示的实施例对应的网络设备的实施方式,其具体的实施方式可以参见图4所示的实施例相关说明,以及达到相同的有益效果,为了避免重复说明,此处不再赘述。
本申请实施例提供的信息传输方法,通过向IAB节点指示所述IAB节点 的DU的频域可用性,这样IAB节点可以基于IAB节点的DU的频域可用性进行信息传输,进而可以减少IAB节点之间或IAB节点内部的干扰。
可选地,所述向IAB节点指示所述IAB节点的DU的频域可用性,包括:
向所述IAB节点发送第一指示,所述第一指示用于指示如下至少一项:
所述IAB节点的DU的频域可用性;
频域可用性组合的索引和频域可用性组合的映射关系;
频域可用性组合;
频域可用性组合的索引。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述网络设备为所述IAB节点的父IAB节点,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC。
本申请实施例中,IAB节点的父IAB节点可以通过DCI或者MAC CE或者RRC向IAB节点发送第一指示。
可选地,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述第一指示在所述DCI中的位置为如下一项:
所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,所述第一偏移值为频域可用性指示的偏移值;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏 移值,其中,所述第二偏移值为所述时域可用性指示的大小;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述网络设备为CU,所述第一指示承载于F1-C信令或者回传自适应协议控制分组数据单元。
本申请实施例中,CU可以通过F1-C信令或者BAP control PDU向IAB节点发送第一指示。
可选地,所述方法还可以包括如下至少一项:
向所述IAB节点指示所述频域可用性的指示粒度;
向所述IAB节点指示用于确定所述频域可用性的SCS。
本申请实施例中,可以由IAB节点的父IAB节点通过DCI或者MAC CE或者RRC向IAB节点指示频域可用性的指示粒度,或者可以由CU通过F1-C信令或者BAP control PDU向IAB节点指示所述IAB节点的DU的频域可用性的指示粒度。
同样地,可以由IAB节点的父IAB节点通过DCI或者MAC CE或者RRC向IAB节点指示用于确定所述频域可用性的SCS,或者可以由CU通过F1-C信令或者BAP control PDU向IAB节点指示用于确定所述频域可用性的SCS。
可选地,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
协议预定义的频域可用性的指示粒度;
预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
所述第一指示的大小;
所述IAB节点的DU的可用频域资源;
所述IAB节点的DU的实际调度的频域资源;
所述IAB节点的DU的载波所处的频率范围。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
每N个物理资源块PRB,N为正整数;
每M个资源块组RBG,M为正整数;
每K个载波,K为正整数;
每L个子带,L为正整数。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述RBG根据带宽确定。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述子带根据干扰相关参数或信道状态信息CSI测量参数确定。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,用于确定所述频域可用性的SCS包括如下之一:
所述IAB节点的DU的时域可用性组合对应的SCS;
所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
所述IAB节点的主小区的PDCCH或SSB的SCS;
与所述IAB节点的聚集小区的频率范围对应的SCS。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,在所述上行链路资源配置和/或下行链路资源配置中有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
所述至少两个SCS中的最大SCS;
所述至少两个SCS中的最小SCS;
所述至少两个SCS中主小区同步信号块的SCS。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
主小区的SCS;
主辅小区的SCS;
所述至少两个SCS中最大的SCS;
所述至少两个SCS中最小的SCS;
主小区组的主小区的PDCCH或SSB的SCS;
主小区组的参考小区的PDCCH或SSB的SCS;
辅小区组的参考小区的PDCCH或SSB的SCS。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述第一指示根据如下至少一项确定:
时域资源配置;
所述IAB节点的DU和MT的资源复用模式。
可选地,所述第一指示应用于如下至少一项:
时域配置为软类型的资源;
时域配置为硬类型的资源;
时域配置为不可用类型的资源;
时域配置为下行链路类型的资源;
时域配置为上行链路类型的资源;
时域配置为弹性类型的资源;
每个时隙或者每个符号对应的资源。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述方法还包括:
向所述IAB节点发送所述第一指示生效的时域参数。
本申请实施例中,可以由IAB节点的父IAB节点通过DCI或者MAC CE或者RRC向IAB节点发送所述第一指示生效的时域参数,或者可以由CU通过F1-C信令或者BAP control PDU向IAB节点发送所述第一指示生效的时域参数。
可选地,所述时域参数包括如下至少一项:生效周期;时域偏移;时域资源大小。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述方法还包括:
发送第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和可用频域的位置中的至少一项。
本申请实施例中,可以由IAB节点的父IAB节点通过DCI或者MAC CE或者RRC向IAB节点发送第二指示,或者可以由CU通过F1-C信令或者BAP control PDU向IAB节点发送第二指示。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述IAB节点的DU的频域可用性根据如下至少一项确定:
所述IAB节点的DU的频域资源;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述IAB节点的DU的时频资源的可用性根据所述IAB节点的DU的时域可用性和频域可用性确定。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型, 则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
可选地,所述方法还包括:
接收所述IAB节点上报的频域资源参数;
其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
该实施方式的实现方式可以参见图4所示的实施例的相关说明,此处不作赘述。
可选地,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问触发上报。
为了便于理解,以下结合示例对本申请实施例提供的信息传输方法进行说明:
示例一:时域可用性复用DCI format 2_5信令,且在DCI中与时域可用性分别指示,该方案可以兼容R16 UE。
具体地,对于每个IAB节点,或者IAB DU的每个小区(cell)可以提供以下部分或全部信息:
IAB DU服务小区的标识(iabDuCellId-AI);
一个频域可用性指示在DCI format 2_5中的位置(FreqPositionInDCI-AI);
一组频域可用性组合指示(FreqAvailabilityCombinations),其中,每个频域可用性组合指示包括:
频域资源可用性指示(FreqResourceAvailability);
由频域资源可用性指示(FreqResourceAvailability)提供的Soft类型的频域资源可用性组合或者部分或全部频域资源可用性组合到由频域可用性组合标识(FreqAvailabilityCombinationId)提供的DCI format 2_5的相应的AI索引字段值的映射,也即根据DCI中指示的FreqAvailabilityCombinationId,以及FreqAvailabilityCombinations配置的映射关系,可以找到对应的频域资源的 可用性指示。
其中,上述频域资源可用性指示(FreqResourceAvailability)用于指示频域资源的可用性。可选地,可以为部分或者全部soft类型的频域资源配置频域资源可用性指示;或者为部分或全部频域资源配置频域资源可用性指示,也即不限制为soft类型的频域资源;或者分别为每种资源类型(即hard/soft/NA等)的频域资源配置频域资源可用性指示;或者分别为每种复用模式(即MT TX/DU TX,MT RX/DU RX,MT TX/DU RX,MT RX/DU TX,TDM)配置频域资源可用性指示;或者分别为每种链路方向(即UL/DL/Flexbile)配置频域资源可用性指示;或者分别为每个时隙或者每个符号配置频域资源可用性指示。
需要说明的是,若上述频域资源可用性指示应用于soft类型的频域资源,也即用于指示soft类型的频域资源的有用性,则表示DCI中的频域资源可用性指示只改写频域预先配置为soft类型的资源,配置为Hard/NA类型的资源不改写。若上述频域资源可用性指示应用于部分或全部资源,不考虑频域预先配置的频域资源的可用性,则DCI中的频域资源可用性指示可以改写Hard/NA类型的资源可用性。
IAB-DU假设频域可用性组合指示(FreqAvailabilityCombinations)或者频域可用性指示采用与时域可用性组合指示(availabilityCombinations)相同的SCS配置;或者采用IAB-DU上下行配置(IAB-DU-Resource-Configuration-TDD-Config)提供的SCS的配置;或者当有多个IAB-DU上下行配置提供了不同的SCS配置时(可能对应MT处于双连接状态的情况),采用最大或最小的SCS的配置;或者,当有多个时域可用性组合指示(availabilityCombinations)(可能对应MT处于双连接状态的情况),且对应不同的SCS配置时,可以采用其中最大或最小的SCS。
其中,频域可用性指示在DCI中的位置可以为如下三种方式中的一种。
方式一,频域可用性指示在DCI中的位置可以为DCI中最后一个时域可用性指示的位置之后,如图5a所示。
方式二,频域可用性指示在DCI中的位置可以为对应的时域可用性指示在DCI中的位置之后,如图5b所示。
方式三,频域可用性指示在DCI中的位置可以为对应的时域可用性指示在DCI中的位置,如图5c所示。
需要说明的是,上述方式三相比方式一和方式二,在RRC配置中可以只配置一个positionInDCI的指示。其中,DCI Format 2_5中携带的频域可用性指示可以为FreqAvailabilityCombinationId-r17。
对于通过RRC信令指示某个小区(cell)的频域可用性,对应的RRC信令配置可以为如下方案之一:
方案一:频域可用性指示与时域可用性指示可以采用相同的信息单元(Information Element,IE)。
其中,IE中的一些字段可以为时域可用性指示和频域可用性指示共用,例如availabilityCombinationsPerCellIndex。对于positionInDCI-AI字段,可以为时域可用性指示和频域可用性指示共用,也可以定义一个新的字段位置指示;当不提供新的字段位置指示时,频域指示的位置可以根据positionInDCI-AI确定,例如,频域可用资源指示字段位置=positionInDCI-AIlast+position indicator size,其中,positionInDCI-AIlast为DCI中最后一个时域可用性指示在所述DCI中的位置或起始位置,position indicator size为时域可用性指示的大小。现有字段AvailabilityCombinationsPerCellIndex为时域和频域可用资源集的共同索引。
可选地,一种可选地RRC的配置的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000004
Figure PCTCN2021137735-appb-000005
需要说明的是,若频域可用性指示携带于DCI format 2-5中,那么在FreqPositionInDCI-AI-r17中的最大值也可以定义为maxAI-DCI-PayloadSize-R17,其中,maxAI-DCI-PayloadSize-R17= maxAI-DCI-PayloadSize-R16。若频域可用性指示采用新的DCI(例如,下行控制信息(Downlink Control Information,DCI)格式2_7(format 2_7)(即DCI format 2_7))指示,则在FreqPositionInDCI-AI-r17中的最大值可以定义为maxAI-DCI-PayloadSize-R17。其中,maxAI-DCI-PayloadSize-R17取值不要求与maxAI-DCI-PayloadSize-R16配置相同。maxAI-DCI-PayloadSize-R17表示协议第17版本(Release 17,Rel-17)中定义的用于指示可用性的最大DCI的大小,maxAI-DCI-PayloadSize-R16表示协议Rel-16中定义的用于指示可用性的最大DCI的大小。
方案二:采用独立的RRC IE指示频域可用性。
可选地,一种可选地RRC的配置的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000006
Figure PCTCN2021137735-appb-000007
需要说明的是,若频域可用性指示携带于DCI format 2-5中,那么在FreqPositionInDCI-AI-r17中的最大值可以定义为maxAI-DCI-PayloadSize-R17,其中,maxAI-DCI-PayloadSize-R17=maxAI-DCI-PayloadSize-R16。若频域可用性指示采用新的DCI(例如,DCI format 2_7)指示,则在FreqPositionInDCI-AI-r17中的最大值可以定义为maxAI-DCI-PayloadSize-R17。其中,maxAI-DCI-PayloadSize-R17取值不要求与maxAI-DCI-PayloadSize-R16配置相同。
示例二:在时域可用性指示中内嵌一级频域可用性指示。
对于每个IAB节点,或者IAB DU的每个小区提供以下部分或全部信息:
IAB DU服务小区的标识(iabDuCellId-AI);
一个时域可用性指示在DCI format 2_5中的位置(positionInDCI-AI);
一个频域可用性指示在DCI format 2_5中的位置(FreqPositionInDCI-AI);
一组时域可用性组合(AvailabilityCombinations,)其中,每个时域可用性组合包括:
时域可用性指示(resourceAvailability),用于指示一个或多个时隙中的soft类型符号资源的可用性;
由时域可用性指示(resourceAvailability)提供的Soft类型符号可用性组合到由时域可用性组合标识(AvailabilityCombinationId)提供的DCI format2_5的相应的可用性指示(Availability Indicator,AI)索引字段值的映射。
由频域资源可用性指示(FreqResourceAvailability)提供的部分/全部频域资源的可用性组合到由频域可用性组合标识(FreqAvailabilityCombinationId)提供的DCI format 2_5的相应的AI索引字段值的映射。
需要说明的是,采用这种指示方式,可以根据DCI format 2_5中时域可用性指示,先找到对应的时域entry,然后在时域entry下,再根据频域可用 性指示,找到对应的频域可用性指示,也即频域资源指示是内嵌在每个时域entry下的指示。
其中,频域可用性相关(例如,可用频域资源(FreqResourceAvailablity),可用频域组合标识(FreqAvailabilityCombinateionId)等)的RRC配置参数、SCS的配置、DCI的格式可以参考示例一。
示例三:RRC指示频域指示粒度,DCI指示频域可用性。
CU或者父IAB节点可以通过RRC为IAB MT或IAB DU配置频域可用性指示粒度,例如,频域可用性指示粒度(FreqGranularity)。
定义用于指示频域可用性的DCI,例如,DCI format 2_7,通过该DCI指示IAB DU的频域可用性。
IAB节点可以根据MT或DU的资源带宽,确定频域可用性指示的长度。其中,频域可用性指示的长度可以为以下之一:
若为位图(bitmap)指示,则DCI中指示域长度可以为ceil(BW/FreqGranularity),其中,ceil表示向上取整,BW表示MT或DU的资源带宽,FreqGranularity表示频域可用性指示粒度。这种方式就是每个频域单位对应1比特(bit),指示为可用或不可用;或者把soft类型的资源指示为Hard类型或NA类型。
若为bitmap指示,则DCI中指示域长度可以为2*ceil(BW/FreqGranularity)其中,ceil表示向上取整,BW表示MT或DU的资源带宽,FreqGranularity表示频域可用性指示粒度。这种方式就是每个频域单位对应2比特,可以把频域单位资源指示为Soft类型、Hard类型、或NA类型。
若为连续指示,则DCI中指示域长度可以为ceil(log2(BW/FreqGranularity))+1,其中,ceil表示向上取整,BW表示MT或DU的资源带宽,FreqGranularity表示频域可用性指示粒度。其中最高或最低1比特指示为可用或不可用,或者指示为Hard类型或NA类型;ceil(log2(BW/FreqGranularity))标识出哪些频域资源为所指示的属性。
若为连续指示,则DCI中指示域长度为2*ceil(log2(BW/FreqGranularity))+2,其中,ceil表示向上取整,BW表示MT或DU的资源带宽,FreqGranularity表示频域可用性指示粒度。其中,最高或最低1比特指示为Hard类型或NA 类型;ceil(log2(BW/FreqGranularity))标识出哪些频域资源为所指示的属性。次高比特或次低比特或第2比特+ceil(log2(BW/FreqGranularity))指示Hard类型或NA类型,ceil(log2(BW/FreqGranularity))标识出哪些频域资源为所指示的属性。
其中,用于确定频域可用性的参考SCS可以为RRC配置的参数。
需要说明的是,采用上述方式,根据DCI format 2_5中时域可用性指示,先找到对应的时域指示编号(Entry),然后在时域指示编号下,再根据频域可用性指示,找到对应的频域可用性组合。也即频域资源指示是内嵌在每个时域指示编号下的指示。
示例四:扩展可用性指示域的范围。
RRC配置的可用性参数的IE(也即AvailabilityCombinationsPerCell information element)中,扩展resourceAvailability-r16的指示范围。
一种可选地RRC的配置的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000008
Figure PCTCN2021137735-appb-000009
其中,resourceAvailability-r17的取值范围为0-N,表示IAB的时频域资源的可用性指示。可选地,N为大于等于8的值。
需要说明的是,在Rel-16中,resourceAvailability-r16的取值范围为0-7,表示时域UL/DL/Flexible symbol的可用性的指示。
需要说明的是,采用上述方式,根据DCI format 2_5中时域可用性指示,先找到对应的时域指示编号(Entry),然后在时域指示编号下,再根据频域可用性指示,找到对应的频域可用性组合。也即频域资源指示是内嵌在每个时域指示编号下的指示。
示例五:F1-C信令。
CU通过F1-C信令为DU配置频域可用性或者频域资源的属性。
其中F1-C信令的配置参数可以如下:
情形一:显示配置频域可用性,且以N个PRB为指示粒度进行配置。
一种可选地的实现代码可以如下所示:
Frequency configuration list:
>Frequency configuration item:1..<maxnoofFrequencyResource>
>HSNA frequency info ENUMERATED(HARD,SOFT,NOTAVAILABLE)。
其中,maxnoofFrequencyResource表示指示的频域资源的数目。例如,若以10个PRB为指示粒度进行指示,最大带宽为275个PRB,则需要28个频域指示标记。
情形二:显示配置频域可用性。
一种可选地的实现代码可以如下所示:
Frequency configuration list:
>HSNA frequency resource granularity ENUMERATED(RB1,RB2,RB3,RB4,…)
>Frequency configuration item:1..<maxnoofFrequencyResource>
>HSNA frequency info ENUMERATED(HARD,SOFT,NOTAVAILABLE)。
其中,RB1,RB2,RB3,RB4…表示频域可用性指示的指示粒度。
其中,maxnoofFrequencyResource表示指示的频域资源的数目。例如,若以10个PRB为指示粒度进行指示,最大带宽为275个PRB,则需要28个频域指示标记。
情形三:根据资源复用模式配置频域可用性,在multiplexing info IE中配置。
一种可选地的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000010
情形四:根据资源复用模式配置频域可用性,在multiplexing info IE中配置。
一种可选地的实现代码可以如下所示:
Figure PCTCN2021137735-appb-000011
其中,SIMUTRANSMISSION表示支持MT和DU同时调度。
情形五:在gNB-DU Cell Resource Configuration IE中配置,并将时域资源的UL/DL/Flexible symbol作为指示粒度进行配置。
一种可选地实现代码可以如下所示:
Figure PCTCN2021137735-appb-000012
Figure PCTCN2021137735-appb-000013
请参见图7,图7是本申请实施例提供的一种信息传输装置的结构图,如图7所示,信息传输装置700包括:
传输模块701,用于根据IAB节点的分布单元DU的频域可用性进行信息传输;
其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
可选地,所述装置还包括:
第一接收模块,用于接收第一指示,所述第一指示用于指示如下至少一项:
所述IAB节点的DU的频域可用性;
频域可用性组合的索引和频域可用性组合的映射关系;
频域可用性组合;
频域可用性组合的索引。
可选地,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
可选地,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC或者F1-C信令或者回传自适应协议控制分组数据单元。
可选地,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
可选地,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
可选地,所述第一指示在所述DCI中的位置为如下一项:
所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,所述第一偏移值为频域可用性指示的偏移值;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏移值,其中,所述第二偏移值为所述时域可用性指示的大小;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
可选地,所述装置还包括:
确定模块,用于根据所述第一指示所指示的频域可用性组合的索引和第 一映射关系确定所述IAB节点的DU的频域可用性,其中,所述第一映射关系为频域可用性组合的索引和频域可用性组合的映射关系。
可选地,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
F1-C或RRC或MAC CE或DCI或BAP CONTROL PDU所指示的频域可用性的指示粒度;
协议预定义的频域可用性的指示粒度;
预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
所述第一指示的大小;
所述IAB节点的DU的可用频域资源;
所述IAB节点的DU的实际调度的频域资源;
所述IAB节点的DU的载波所处的频率范围。
可选地,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
每N个物理资源块PRB,N为正整数;
每M个资源块组RBG,M为正整数;
每K个载波,K为正整数;
每L个子带,L为正整数。
可选地,所述RBG根据带宽确定。
可选地,所述子带根据干扰相关参数或信道状态信息CSI测量参数确定。
可选地,用于确定所述频域可用性的子载波间隔SCS包括如下至少之一:
F1-C、RRC、MAC CE、DCI或BAP control PDU所指示的SCS;
所述IAB节点的DU的时域可用性组合对应的SCS;
所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
所述IAB节点的主小区的PDCCH或SSB的SCS;
与所述IAB节点的聚集小区的频率范围对应的SCS。
可选地,在所述上行链路资源配置和/或下行链路资源配置中有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
所述至少两个SCS中的最大SCS;
所述至少两个SCS中的最小SCS;
所述至少两个SCS中主小区同步信号块的SCS。
可选地,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
主小区的SCS;
主辅小区的SCS;
所述至少两个SCS中最大的SCS;
所述至少两个SCS中最小的SCS;
主小区组的主小区的PDCCH或SSB的SCS;
主小区组的参考小区的PDCCH或SSB的SCS;
辅小区组的参考小区的PDCCH或SSB的SCS。
可选地,所述第一指示根据如下至少一项确定:
时域资源配置;
频域资源配置;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
可选地,所述第一指示应用于如下至少一项:
时域配置为软类型的资源;
时域配置为硬类型的资源;
时域配置为不可用类型的资源;
时域配置为下行链路类型的资源;
时域配置为上行链路类型的资源;
时域配置为弹性类型的资源;
每个时隙或者每个符号对应的资源。
可选地,所述第一指示的生效时间根据如下至少一项确定:
预定义的所述第一指示生效的时域参数;
指示或配置的所述第一指示生效的时域参数。
可选地,所述时域参数包括如下至少一项:生效周期;时域偏移;时域资源大小。
可选地,所述装置还包括:
第二接收模块,用于接收第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和位置中的至少一项。
可选地,所述IAB节点的DU的频域可用性根据如下至少一项确定:
所述IAB节点的DU的频域资源;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
可选地,所述IAB节点的DU的时频资源的可用性根据所述IAB节点的DU的时域可用性和频域可用性确定。
可选地,若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
可选地,所述装置还包括:
上报模块,用于上报频域资源参数;
其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
可选地,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问触发上报。
本申请实施例提供的信息传输装置能够实现图4的方法实施例中各个过 程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中的信息传输装置可以是装置,也可以是IAB节点中的部件、集成电路、或芯片。
请参见图8,图8是本申请实施例提供的另一种信息传输装置的结构图,如图8所示,信息传输装置800包括:
第一指示模块801,用于向IAB节点指示所述IAB节点的DU的频域可用性。
可选地,所述第一指示模块具体用于:
向所述IAB节点发送第一指示,所述第一指示用于指示如下至少一项:
所述IAB节点的DU的频域可用性;
频域可用性组合的索引和频域可用性组合的映射关系;
频域可用性组合;
频域可用性组合的索引。
可选地,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
可选地,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC。
可选地,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
可选地,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
可选地,所述第一指示在所述DCI中的位置为如下一项:
所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,I为频域可用性指示的偏移值;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏移值,其中,J为所述时域可用性指示的大小;
所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
可选地,所述第一指示承载于F1-C信令或者回传自适应协议控制分组数据单元。
可选地,所述装置还包括如下至少一项:
第二指示模块,用于向所述IAB节点指示所述频域可用性的指示粒度;
第三指示模块,用于向所述IAB节点指示用于确定所述频域可用性的SCS。
可选地,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
协议预定义的频域可用性的指示粒度;
预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
所述第一指示的大小;
所述IAB节点的DU的可用频域资源;
所述IAB节点的DU的实际调度的频域资源;
所述IAB节点的DU的载波所处的频率范围。
可选地,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
每N个物理资源块PRB,N为正整数;
每M个资源块组RBG,M为正整数;
每K个载波,K为正整数;
每L个子带,L为正整数。
可选地,所述RBG根据带宽确定。
可选地,所述子带根据干扰相关参数或信道状态信息CSI测量参数确定。
可选地,用于确定所述频域可用性的子载波间隔SCS包括如下之一:
所述IAB节点的DU的时域可用性组合对应的SCS;
所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
所述IAB节点的主小区的PDCCH或SSB的SCS;
与所述IAB节点的聚集小区的频率范围对应的SCS。
可选地,在所述上行链路资源配置和/或下行链路资源配置中有至少两个 SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
所述至少两个SCS中的最大SCS;
所述至少两个SCS中的最小SCS;
所述至少两个SCS中主小区同步信号块的SCS。
可选地,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
主小区的SCS;
主辅小区的SCS;
所述至少两个SCS中最大的SCS;
所述至少两个SCS中最小的SCS;
主小区组的主小区的PDCCH或SSB的SCS;
主小区组的参考小区的PDCCH或SSB的SCS;
辅小区组的参考小区的PDCCH或SSB的SCS。
可选地,所述第一指示根据如下至少一项确定:
时域资源配置;
频域资源配置;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
可选地,所述第一指示应用于如下至少一项:
时域配置为软类型的资源;
时域配置为硬类型的资源;
时域配置为不可用类型的资源;
时域配置为下行链路类型的资源;
时域配置为上行链路类型的资源;
时域配置为弹性类型的资源;
每个时隙或者每个符号对应的资源。
可选地,所述装置还包括:
第一发送模块,用于向所述IAB节点发送所述第一指示生效的时域参数。
可选地,所述时域参数包括如下至少一项:生效周期;时域偏移;时域 资源大小。
可选地,所述装置还包括:
第二发送模块,用于发送第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和可用频域的位置中的至少一项。
可选地,所述IAB节点的DU的频域可用性根据如下至少一项确定:
所述IAB节点的DU的频域资源;
所述IAB节点的DU和MT的资源复用模式;
所述IAB节点的DU和MT的双工方式。
可选地,所述IAB节点的DU的时频资源的可用性根据所述IAB节点的DU的时域可用性和频域可用性确定。
可选地,若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
可选地,所述装置还包括:
接收模块,用于接收所述IAB节点上报的频域资源参数;
其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
可选地,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问触发上报。
本申请实施例提供的信息传输装置能够实现图6的方法实施例中各个过程,为避免重复,这里不再赘述。
需要说明的是,本申请实施例中的信息传输装置可以是装置,也可以是CU或IAB节点的父IAB节点中的部件、集成电路、或芯片。
请参见图9,图9是本申请实施例提供的一种IAB节点的结构图,该IAB 节点900包括:处理器901、收发机902、存储器903和总线接口,其中:
收发机902,用于根据所述IAB节点的分布单元DU的频域可用性进行信息传输;其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
应理解,本实施例中,上述处理器901和收发机902能够实现图4的方法实施例中IAB节点实现的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,收发机902,用于在处理器901的控制下接收和发送数据,所述收发机902包括至少两个天线端口。
在图9中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器901代表的一个或多个处理器和存储器903代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机902可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口904还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器901负责管理总线架构和通常的处理,存储器903可以存储处理器901在执行操作时所使用的数据。
可选地,本申请实施例还提供一种IAB节点,包括处理器901,存储器903,存储在存储器903上并可在所述处理器901上运行的程序或者指令,该程序或者指令被处理器901执行时实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
请参见图10,图10是本申请实施例提供的一种网络设备的结构图,该网络设备1000包括:处理器1001、收发机1002、存储器1003和总线接口,其中:
收发机1002,用于向IAB节点指示所述IAB节点的DU的频域可用性。
应理解,本实施例中,上述处理器1001和收发机1002能够实现图6的方法实施例中网络设备实现的各个过程,且能达到相同的技术效果,为避免 重复,这里不再赘述。
需要说明的是,收发机1002,用于在处理器1001的控制下接收和发送数据,所述收发机1002包括至少两个天线端口。
在图10中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1001代表的一个或多个处理器和存储器1003代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1002可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备,用户接口1004还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器1001负责管理总线架构和通常的处理,存储器1003可以存储处理器1001在执行操作时所使用的数据。
可选地,本申请实施例还提供一种网络设备,包括处理器1001,存储器1003,存储在存储器1003上并可在所述处理器1001上运行的程序或者指令,该程序或者指令被处理器1001执行时实现上述信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
本申请实施例还提供一种可读存储介质,所述可读存储介质可以是非易失的,也可以是易失的,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述IAB节点侧的信息传输方法或者网络设备侧的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的IAB节点中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述实现上述IAB节点侧的信息传输方法或者网络设备侧的信息传输方法实施例 的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
本申请实施例另提供了一种计算机程序产品,其中,所述计算机程序产品被存储在非瞬态的可读存储介质中,所述计算机程序产品被至少一个处理器执行以实现上述IAB节点侧的信息传输方法或者网络设备侧的信息传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得自回传IAB节点执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述,但是本申请并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本申请的启示下,在不脱离本申请宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本申请的保护之内。

Claims (61)

  1. 一种信息传输方法,由自回传IAB节点执行,所述方法包括:
    根据所述IAB节点的分布单元DU的频域可用性进行信息传输;
    其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
  2. 根据权利要求1所述的方法,其中,所述方法还包括:
    接收第一指示,所述第一指示用于指示如下至少一项:
    所述IAB节点的DU的频域可用性;
    频域可用性组合的索引和频域可用性组合的映射关系;
    频域可用性组合;
    频域可用性组合的索引。
  3. 根据权利要求2所述的方法,其中,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
  4. 根据权利要求2所述的方法,其中,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC或者F1-C信令或者回传自适应协议控制分组数据单元BAP control PDU。
  5. 根据权利要求4所述的方法,其中,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
  6. 根据权利要求4所述的方法,其中,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
  7. 根据权利要求6所述的方法,其中,所述第一指示在所述DCI中的位置为如下一项:
    所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,所述第一偏移值为频域可用性指示的偏移值;
    所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏移值,其中,所述第二偏移值为所述时域可用性指示的大小;
    所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
  8. 根据权利要求2所述的方法,其中,所述方法还包括:
    根据所述第一指示所指示的频域可用性组合的索引和第一映射关系确定所述IAB节点的DU的频域可用性,其中,所述第一映射关系为频域可用性组合的索引和频域可用性组合的映射关系。
  9. 根据权利要求2所述的方法,其中,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
    F1-C或RRC或MAC CE或DCI或BAP control PDU所指示的频域可用性的指示粒度;
    协议预定义的频域可用性指示粒度;
    预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
    预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
    预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
    所述第一指示的大小;
    所述IAB节点的DU的可用频域资源;
    所述IAB节点的DU的实际调度的频域资源;
    所述IAB节点的DU的载波所处的频率范围。
  10. 根据权利要求2所述的方法,其中,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
    每N个物理资源块PRB,N为正整数;
    每M个资源块组RBG,M为正整数;
    每K个载波,K为正整数;
    每L个子带,L为正整数。
  11. 根据权利要求10所述的方法,其中,所述RBG根据带宽确定。
  12. 根据权利要求10所述的方法,其中,所述子带根据干扰相关参数或信道状态信息CSI测量参数确定。
  13. 根据权利要求2所述的方法,其中,用于确定所述频域可用性的子载波间隔SCS包括如下至少之一:
    F1-C、RRC、MAC CE、DCI或BAP control PDU所指示的SCS;
    所述IAB节点的DU的时域可用性组合对应的SCS;
    所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
    所述IAB节点的主小区的PDCCH或SSB的SCS;
    与所述IAB节点的聚集小区的频率范围对应的SCS。
  14. 根据权利要求13所述的方法,其中,在所述上行链路资源配置和/或下行链路资源配置中有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
    所述至少两个SCS中的最大SCS;
    所述至少两个SCS中的最小SCS;
    所述至少两个SCS中主小区同步信号块的SCS。
  15. 根据权利要求2所述的方法,其中,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
    主小区的SCS;
    主辅小区的SCS;
    所述至少两个SCS中最大的SCS;
    所述至少两个SCS中最小的SCS;
    主小区组的主小区的PDCCH或SSB的SCS;
    主小区组的参考小区的PDCCH或SSB的SCS;
    辅小区组的参考小区的PDCCH或SSB的SCS。
  16. 根据权利要求2所述的方法,其中,所述第一指示根据如下至少一项确定:
    时域资源配置;
    频域资源配置;
    所述IAB节点的DU和MT的资源复用模式;
    所述IAB节点的DU和MT的双工方式。
  17. 根据权利要求16所述的方法,其中,所述第一指示应用于如下至少 一项:
    时域配置为软类型的资源;
    时域配置为硬类型的资源;
    时域配置为不可用类型的资源;
    时域配置为下行链路类型的资源;
    时域配置为上行链路类型的资源;
    时域配置为弹性类型的资源;
    每个时隙或者每个符号对应的资源。
  18. 根据权利要求2所述的方法,其中,所述第一指示的生效时间根据如下至少一项确定:
    预定义的所述第一指示生效的时域参数;
    指示或配置的所述第一指示生效的时域参数。
  19. 根据权利要求18所述的方法,其中,所述时域参数包括如下至少一项:生效周期;时域偏移;时域资源大小。
  20. 根据权利要求2所述的方法,其中,所述方法还包括:
    接收第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和位置中的至少一项。
  21. 根据权利要求1所述的方法,其中,所述IAB节点的DU的频域可用性根据如下至少一项确定:
    所述IAB节点的DU的频域资源;
    所述IAB节点的DU和MT的资源复用模式;
    所述IAB节点的DU和MT的双工方式。
  22. 根据权利要求1所述的方法,其中,所述IAB节点的DU的时频资源的可用性根据所述IAB节点的DU的时域可用性和频域可用性确定。
  23. 根据权利要求22所述的方法,其中:
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
  24. 根据权利要求1所述的方法,其中,所述方法还包括:
    上报频域资源参数;
    其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
  25. 根据权利要求24所述的方法,其中,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问触发上报。
  26. 一种信息传输方法,由网络设备执行,所述方法包括:
    向IAB节点指示所述IAB节点的DU的频域可用性。
  27. 根据权利要求26所述的方法,其中,所述向IAB节点指示所述IAB节点的DU的频域可用性,包括:
    向所述IAB节点发送第一指示,所述第一指示用于指示如下至少一项:
    所述IAB节点的DU的频域可用性;
    频域可用性组合的索引和频域可用性组合的映射关系;
    频域可用性组合;
    频域可用性组合的索引。
  28. 根据权利要求27所述的方法,其中,所述第一指示还用于指示所述IAB节点的DU的时域可用性。
  29. 根据权利要求27所述的方法,其中,所述网络设备为所述IAB节点的父IAB节点,所述第一指示承载于下行控制信息DCI或者媒体接入控制控制单元MAC CE或者无线资源控制RRC。
  30. 根据权利要求29所述的方法,其中,所述第一指示在所述DCI中的位置和/或大小由RRC配置。
  31. 根据权利要求29所述的方法,其中,所述第一指示在所述DCI中的位置根据所述IAB节点的DU的时域可用性指示在所述DCI中的位置确定。
  32. 根据权利要求31所述的方法,其中,所述第一指示在所述DCI中的 位置为如下一项:
    所述DCI中最后一个时域可用性指示在所述DCI中的位置偏移第一偏移值,其中,所述第一偏移值为频域可用性指示的偏移值;
    所述IAB节点的DU的时域可用性指示在所述DCI中的位置偏移第二偏移值,其中,所述第二偏移值为所述时域可用性指示的大小;
    所述IAB节点的DU的时域可用性指示在所述DCI中的位置。
  33. 根据权利要求27所述的方法,其中,所述网络设备为中心单元CU,所述第一指示承载于F1-C信令或者回传自适应协议控制分组数据单元BAP control PDU。
  34. 根据权利要求27所述的方法,其中,所述方法还包括如下至少一项:
    向所述IAB节点指示所述频域可用性的指示粒度;
    向所述IAB节点指示用于确定所述频域可用性的SCS。
  35. 根据权利要求27所述的方法,其中,所述IAB节点的DU的频域可用性的指示粒度根据如下至少一项确定:
    协议预定义的频域可用性的指示粒度;
    预定义的所述IAB节点的父IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
    预定义的所述IAB节点的DU的带宽范围与频域可用性的指示粒度之间的映射关系;
    预定义的所述IAB节点的移动终端MT的可配置带宽范围与频域可用性的指示粒度之间的映射关系;
    所述第一指示的大小;
    所述IAB节点的DU的可用频域资源;
    所述IAB节点的DU的实际调度的频域资源;
    所述IAB节点的DU的载波所处的频率范围。
  36. 根据权利要求27所述的方法,其中,所述IAB节点的DU的频域可用性的指示粒度为如下一项:
    每N个物理资源块PRB,N为正整数;
    每M个资源块组RBG,M为正整数;
    每K个载波,K为正整数;
    每L个子带,L为正整数。
  37. 根据权利要求36所述的方法,其中,所述RBG根据带宽确定。
  38. 根据权利要求36所述的方法,其中,所述子带根据干扰相关参数或信道状态信息CSI测量参数确定。
  39. 根据权利要求27所述的方法,其中,用于确定所述频域可用性的子载波间隔SCS包括如下之一:
    所述IAB节点的DU的时域可用性组合对应的SCS;
    所述IAB节点的DU的上行链路资源配置和/或下行链路资源配置中所配置的SCS;
    所述IAB节点的主小区的PDCCH或SSB的SCS;
    与所述IAB节点的聚集小区的频率范围对应的SCS。
  40. 根据权利要求39所述的方法,其中,在所述上行链路资源配置和/或下行链路资源配置中有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
    所述至少两个SCS中的最大SCS;
    所述至少两个SCS中的最小SCS;
    所述至少两个SCS中主小区同步信号块的SCS。
  41. 根据权利要求27所述的方法,其中,在所述IAB节点的MT和/或所述IAB节点的DU配置有至少两个SCS的情况下,用于确定所述频域可用性的SCS为如下之一:
    主小区的SCS;
    主辅小区的SCS;
    所述至少两个SCS中最大的SCS;
    所述至少两个SCS中最小的SCS;
    主小区组的主小区的PDCCH或SSB的SCS;
    主小区组的参考小区的PDCCH或SSB的SCS;
    辅小区组的参考小区的PDCCH或SSB的SCS。
  42. 根据权利要求27所述的方法,其中,所述第一指示根据如下至少一 项确定:
    时域资源配置;
    频域资源配置;
    所述IAB节点的DU和MT的资源复用模式;
    所述IAB节点的DU和MT的双工方式。
  43. 根据权利要求42所述的方法,其中,所述第一指示应用于如下至少一项:
    时域配置为软类型的资源;
    时域配置为硬类型的资源;
    时域配置为不可用类型的资源;
    时域配置为下行链路类型的资源;
    时域配置为上行链路类型的资源;
    时域配置为弹性类型的资源;
    每个时隙或者每个符号对应的资源。
  44. 根据权利要求27所述的方法,其中,所述方法还包括:
    向所述IAB节点发送所述第一指示生效的时域参数。
  45. 根据权利要求44所述的方法,其中,所述时域参数包括如下至少一项:生效周期;时域偏移;时域资源大小。
  46. 根据权利要求27所述的方法,其中,所述方法还包括:
    发送第二指示,其中,所述第二指示用于指示所述IAB节点的DU可用频域的大小和可用频域的位置中的至少一项。
  47. 根据权利要求26所述的方法,其中,所述IAB节点的DU的频域可用性根据如下至少一项确定:
    所述IAB节点的DU的频域资源;
    所述IAB节点的DU和MT的资源复用模式;
    所述IAB节点的DU和MT的双工方式。
  48. 根据权利要求26所述的方法,其中,所述IAB节点的DU的时频资源的可用性根据所述IAB节点的DU的时域可用性和频域可用性确定。
  49. 根据权利要求48所述的方法,其中:
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为硬类型且频域可用性为软类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为硬类型,则对应的时频资源的可用性为软类型;
    若所述IAB节点的DU的时域可用性为软类型且频域可用性为分享类型,则对应的时频资源的可用性为软类型。
  50. 根据权利要求26所述的方法,其中,所述方法还包括:
    接收所述IAB节点上报的频域资源参数;
    其中,所述频域资源参数包括如下至少一项:频域资源的边界,频域资源范围,频域资源大小,期望的频域资源可用性。
  51. 根据权利要求50所述的方法,其中,所述频域资源参数的上报方式包括如下一项:周期性上报;事件触发上报;询问触发上报。
  52. 一种信息传输装置,所述装置包括:
    传输模块,用于根据IAB节点的分布单元DU的频域可用性进行信息传输;
    其中,所述IAB节点的DU的频域可用性由所述IAB节点的父IAB节点指示,或者由中心单元CU配置,或者由协议预定义。
  53. 根据权利要求52所述的装置,其中,所述装置还包括:
    第一接收模块,用于接收第一指示,所述第一指示用于指示如下至少一项:
    所述IAB节点的DU的频域可用性;
    频域可用性组合的索引和频域可用性组合的映射关系;
    频域可用性组合;
    频域可用性组合的索引。
  54. 一种信息传输装置,所述装置包括:
    第一指示模块,用于向IAB节点指示所述IAB节点的DU的频域可用性。
  55. 根据权利要求54所述的装置,其中,所述第一指示模块具体用于:
    向所述IAB节点发送第一指示,所述第一指示用于指示如下至少一项:
    所述IAB节点的DU的频域可用性;
    频域可用性组合的索引和频域可用性组合的映射关系;
    频域可用性组合;
    频域可用性组合的索引。
  56. 一种IAB节点,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至25中任一项所述的信息传输方法中的步骤。
  57. 一种网络设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求26至51中任一项所述的信息传输方法中的步骤。
  58. 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至25中任一项所述的信息传输方法的步骤,或者所述程序或指令被处理器执行时实现如权利要求26至51中任一项所述的信息传输方法的步骤。
  59. 一种芯片,包括处理器和通信接口,所述通信接口和所述处理器耦合,其中,所述处理器用于运行程序或指令,实现如权利要求1至25中任一项所述的信息传输方法的步骤,或者实现如权利要求26至51中任一项所述的信息传输方法的步骤。
  60. 一种计算机程序产品,所述计算机程序产品被存储在非瞬态的可读存储介质中,其中,所述计算机程序产品被至少一个处理器执行以实现如权利要求1至25中任一项所述的信息传输方法的步骤,或者所述计算机程序产品被至少一个处理器执行以实现如权利要求26至51中任一项所述的信息传输方法的步骤。
  61. 一种通信设备,被配置为执行如权利要求1至25中任一项所述的信息传输方法的步骤,或者被配置为执行如权利要求26至51中任一项所述的信息传输方法的步骤。
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