WO2024067869A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2024067869A1
WO2024067869A1 PCT/CN2023/122937 CN2023122937W WO2024067869A1 WO 2024067869 A1 WO2024067869 A1 WO 2024067869A1 CN 2023122937 W CN2023122937 W CN 2023122937W WO 2024067869 A1 WO2024067869 A1 WO 2024067869A1
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Prior art keywords
resource
node
time slot
frequency domain
available
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PCT/CN2023/122937
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English (en)
French (fr)
Inventor
袁世通
宋兴华
刘凤威
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华为技术有限公司
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Publication of WO2024067869A1 publication Critical patent/WO2024067869A1/zh

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Classifications

    • 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
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the present application relates to the field of communications, and more specifically, to a communication method and a communication device.
  • the fifth generation mobile communication system (5G) introduces integrated access and backhaul (IAB) network technology.
  • the access link and backhaul link in the IAB network can adopt wireless transmission solutions, reducing optical fiber deployment and thus reducing deployment costs.
  • the resource configuration of an IAB node may include at least one of the availability configuration of time domain resources and the availability configuration of frequency domain resources.
  • the IAB node may receive at least one of the availability indication for time slot resources and the availability indication for frequency domain resources. In this case, how to flexibly indicate the resource availability of the IAB node is a problem that needs to be solved.
  • the present application provides a communication method and device, which can realize flexible indication of resource availability of relay nodes and improve the communication performance of the system.
  • a communication method comprising: a first node receives second indication information from a second node, the first node is configured with first configuration information, the first configuration information is used to configure a resource type of each time slot in a first set, the first set includes a first time slot, the first time slot is a time slot configured with a first resource, the second indication information indicates the resource availability of at least one frequency domain resource group; the first node determines the resource availability of the first time slot according to the resource availability of one or more frequency domain resource groups in the first frequency domain resource group; the first node communicates with a third node through the time slot indicated as available in the first time slot; wherein the second node is an upper-level integrated access backhaul IAB node of the first node, the third node is a lower-level IAB node of the first node or a terminal device served by the first node, the resource type includes available resources, unavailable resources and the first resource, and whether the first resource is available is indicated by the second node
  • the first node determines the resource availability of the first time slot based on the resource availability of one or more frequency domain resource groups in the first frequency domain resource group, including: the first node determines the resource availability of the first time slot based on the resource availability of the first frequency domain resource group in the first frequency domain resource group; or, the first node determines the resource availability of the first time slot based on the resource availability of each frequency domain resource group in the first frequency domain resource group.
  • the first time slot is available.
  • the first time slot is available; or, if any frequency domain resource group in the first frequency domain resource group is indicated as available, the first time slot is available.
  • the resource availability of each frequency domain resource group in the first frequency domain resource group corresponds to the resource availability of at least one symbol, and if each frequency domain resource group in at least one frequency domain resource group corresponding to the first symbol of the first time slot is indicated as available, then the first symbol is available; or, if any frequency domain resource group in at least one frequency domain resource group corresponding to the first symbol of the first time slot is indicated as available, then the first symbol is available; wherein the at least one symbol includes the first symbol, and the first symbol is an uplink symbol, a downlink symbol or a flexible symbol.
  • a communication method comprising: a first node receives first indication information from a second node, the first indication information indicating resource availability of a first time slot in a first set, the first set including at least one time slot, the first time slot being a time slot configured with a first resource, the first node configuring first configuration information and second configuration information, the first configuration information configuring the first set
  • the first node determines the second resource according to the first indication information; the first node communicates with the third node through the second resource, the second node is the upper integrated access backhaul IAB node of the first node, the third node is the lower IAB node of the first node or the terminal device served by the first node, the resource type includes available resources, unavailable resources and the first resource, and whether the first resource is available is indicated by the second node.
  • the first node determines that the second resource includes available resources in at least one frequency domain resource group corresponding to the first time slot unit.
  • the first node determines that the second resource includes the second time slot; and/or, if the first set includes a third time slot configured as an unavailable resource, the first node determines that the second resource includes the third time slot.
  • the first node determines that the second resource includes available resources in at least one frequency domain resource group corresponding to the first time slot; wherein the first symbol and the second symbol are respectively any one of an uplink symbol, a downlink symbol or a flexible symbol, and the first symbol and the second symbol have different symbol types.
  • a communication method including: a first node receives first indication information and second indication information from a second node, the first indication information indicating resource availability of a first time slot in a first set, the first set including at least one time slot, the first time slot being a time slot configured with a first resource, the second indication information indicating resource availability of a first frequency domain resource group, the first frequency domain resource group being a frequency domain resource group configured with the first resource, the first node configuring first configuration information and second configuration information, the first configuration information being used to configure a resource type of each time slot in the first set, the second configuration information configuring a resource type of at least one frequency domain resource group corresponding to each time slot in the first set; the first node determining a second resource according to at least one indication information of the first indication information and the second indication information; the first node communicating with a third node through the first resource, the second node being an upper integrated access backhaul IAB node of the first node, the third node being a
  • the first node determines the second resource based on the first indication information and at least one of the second indication information, including: the first node determines the second resource based on the second indication information, and the second resource includes available resources in at least one frequency domain resource group corresponding to each time slot in the first set.
  • the first node determines the second resource based on at least one of the first indication information and the second indication information, including: the first node determines the second resource based on the first indication information, the first indication information indicates that the first time slot is available, and the second resource includes the first time slot; or, the first node determines the second resource based on the first indication information and the second indication information.
  • the first node determines the second resource based on the first indication information and the second indication information, including: the first node determines that the first time slot is not indicated as available based on the first indication information; the first node determines the second resource based on the second indication information, and the second resource includes available resources in at least one frequency domain resource group corresponding to each time slot in the first set.
  • the first node determines the second resource based on the first indication information and the second indication information, including: the first node determines that the first symbol in the first time slot is available based on the first indication information, and the second symbol in the first time slot is not indicated as available; the first node determines the second resource based on the second indication information, and the second resource includes the first symbol and available resources in at least one frequency domain resource group corresponding to the second symbol.
  • a communication device comprising a transceiver unit and a processing unit, the transceiver unit being used to receive second indication information from a second node, the device being configured with first configuration information, the first configuration information being used to configure a resource type of each time slot in a first set, the first set comprising a first time slot, the first time slot being a time slot configured with a first resource, the second indication information indicating the resource availability of at least one frequency domain resource group; the processing unit being used to determine the resource availability of the first time slot according to the resource availability of one or more frequency domain resource groups in the first frequency domain resource group; the first node communicating with a third node via a time slot indicated as available in the first time slot; wherein the second node is an upper-level integrated access backhaul IAB node of the device, the third node is a lower-level IAB node of the device or a terminal device served by the device, the resource type comprises available resources, unavailable resources and the first resource, and whether the first resource
  • the processing unit is specifically configured to: The resource availability of the first time slot is determined based on the resource availability of the first frequency domain resource group; or, the resource availability of the first time slot is determined based on the resource availability of each frequency domain resource group in the first frequency domain resource group.
  • the processing unit is specifically used to: if each frequency domain resource group in the first frequency domain resource group is indicated as available, determine that the first time slot is available.
  • the processing unit is specifically used to: if each frequency domain resource group in the first frequency domain resource group is indicated as available, determine that the first time slot is available; or, if any frequency domain resource group in the first frequency domain resource group is indicated as available, determine that the first time slot is available.
  • the resource availability of each frequency domain resource group in the first frequency domain resource group corresponds to the resource availability of at least one symbol
  • the processing unit is specifically used to: if each frequency domain resource group in at least one frequency domain resource group corresponding to the first symbol of the first time slot is indicated as available, determine that the first symbol is available; or, if any frequency domain resource group in at least one frequency domain resource group corresponding to the first symbol of the first time slot is indicated as available, determine that the first symbol is available; wherein the at least one symbol includes the first symbol, and the first symbol is an uplink symbol, a downlink symbol or a flexible symbol.
  • a communication device comprising a transceiver unit and a processing unit, the transceiver unit being used to receive first indication information from a second node, the first indication information indicating the resource availability of a first time slot in a first set, the first set including at least one time slot, the first time slot being a time slot configured with a first resource, the device being configured with first configuration information and second configuration information, the first configuration information configuring the resource type of each time slot in the first set, the second configuration information configuring the resource type of at least one frequency domain resource group corresponding to each time slot in the first set; the processing unit being used to determine a second resource according to the first indication information; the transceiver unit being further used to communicate with a third node through the second resource, the second node being an upper integrated access backhaul IAB node of the device, the third node being a lower IAB node of the device or a terminal device served by the device, the resource type including available resources, unavailable resources and the first resource, and whether
  • the processing unit is specifically used to: if the first indication information does not indicate that the first time slot is available, determine that the second resource includes available resources in at least one frequency domain resource group corresponding to the first time slot unit.
  • the processing unit is also used to: if the first set includes a second time slot configured as an available resource, determine that the second resource includes the second time slot; and/or, if the first set includes a third time slot configured as an unavailable resource, determine that the second resource includes the third time slot.
  • the processing unit is specifically used to: if the first symbol in the first time slot is indicated as available, and the second symbol in the first time slot is not indicated as available, then determine that the second resource includes available resources in at least one frequency domain resource group corresponding to the first time slot; wherein the first symbol and the second symbol are respectively any one of an uplink symbol, a downlink symbol or a flexible symbol, and the first symbol and the second symbol have different symbol types.
  • a communication device comprising a transceiver unit and a processing unit, the transceiver unit being used to receive first indication information and second indication information from a second node, the first indication information indicating resource availability of a first time slot in a first set, the first set including at least one time slot, the first time slot being a time slot configured with a first resource, the second indication information indicating resource availability of a first frequency domain resource group, the first frequency domain resource group being a frequency domain resource group configured with the first resource, the first device being configured with first configuration information and second configuration information, the first configuration information being used to configure a resource type of each time slot in the first set, the second configuration information being used to configure a resource type of at least one frequency domain resource group corresponding to each time slot in the first set; the processing unit being used to determine a second resource according to at least one indication information of the first indication information and the second indication information; the transceiver unit being further used to communicate with a third node through the first resource, the second node
  • the processing unit is specifically used to: determine the second resource based on the second indication information, and the second resource includes available resources in at least one frequency domain resource group corresponding to each time slot in the first set.
  • the processing unit is specifically used to: determine the second resource based on the first indication information, the first indication information indicates that the first time slot is available, and the second resource includes the first time slot; or, determine the second resource based on the first indication information and the second indication information.
  • the processing unit is specifically used to: determine, based on the first indication information, that the first time slot is not indicated as available; determine, based on the second indication information, the second resource, wherein the second resource includes available resources in at least one frequency domain resource group corresponding to each time slot in the first set.
  • the processing unit is specifically used to: determine, based on the first indication information, that the first symbol in the first time slot is available, and the second symbol in the first time slot is not indicated as available; determine the second resource based on the second indication information, the second resource including the first symbol and available resources in at least one frequency domain resource group corresponding to the second symbol.
  • a first node comprising a processor and, optionally, a memory, wherein the processor is used to control a transceiver to receive and send signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the first node and/or the terminal device executes the method in any possible implementation of the above-mentioned first to third aspects or the first to third aspects.
  • the processor is one or more and the memory is one or more.
  • the memory may be integrated with the processor, or the memory may be provided separately from the processor.
  • the first node and/or the terminal device further includes a transceiver, which may specifically be a transmitter (transmitter) and a receiver (receiver).
  • a transceiver which may specifically be a transmitter (transmitter) and a receiver (receiver).
  • a communication system comprising: a first node and/or a second node, configured to execute the method in any possible implementation of the first to third aspects or the first to third aspects.
  • a computer-readable storage medium which stores a computer program or code.
  • the computer program or code When the computer program or code is run on a computer, the computer executes the method in any possible implementation of the first to third aspects or the first to third aspects.
  • a chip comprising at least one processor, wherein the at least one processor is coupled to a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a first node installed with the chip system executes the method in any possible implementation of the first to third aspects or the first to third aspects.
  • the chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.
  • a computer program product which includes: a computer program code, which, when executed by a network device, enables the first node to execute the method in any possible implementation of the first to third aspects or the first to third aspects.
  • FIG1 is a schematic diagram of an example of a network architecture applicable to the present application.
  • FIG. 2 is a schematic diagram of an example of an access and backhaul integrated IAB node structure applicable to the present application.
  • FIG3 is a schematic diagram of an example of resource utilization under the DU time domain resource configuration supported by the current protocol.
  • FIG. 4 is another schematic diagram of resource utilization under the DU time domain resource configuration supported by the current protocol.
  • FIG5 is an interactive flow chart of the communication method provided in an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a communication device provided in an embodiment of the present application.
  • FIG. 7 is a schematic diagram of the structure of a communication device provided in an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD frequency division duplex
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G mobile communication system can be a non-standalone (NSA) or an independent network (SA).
  • the technical solution provided in the present application can also be applied to machine type communication (MTC), long term evolution-machine communication technology (LTE-M), device-to-device (D2D) network, machine-to-machine (M2M) network, Internet of Things (IoT) network or other networks.
  • the IoT network may include, for example, the Internet of Vehicles.
  • the communication methods in the Internet of Vehicles system are collectively referred to as vehicle to other devices (V2X, where X can represent anything).
  • the V2X may include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian (V2P) communication, or vehicle to network (V2N) communication.
  • the technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6G) mobile communication system. This application does not limit this.
  • 6G sixth generation
  • the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • UE user equipment
  • a terminal device can be a device that provides voice/data connectivity to users, such as a handheld device with wireless connection function, a vehicle-mounted device, etc.
  • some examples of terminals can be: mobile phones, tablet computers, computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile Internet devices (mobile internet devices, MIDs), virtual reality (virtual reality, VR) devices, augmented reality (augmented reality, AR) devices, wireless terminals in industrial control (industrial control), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, etc.
  • Wireless terminals in smart cities wireless terminals in smart homes (for example, home appliances such as televisions, smart boxes, game consoles), cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in 5G networks, or terminal devices in future evolved public land mobile networks (PLMNs), etc.
  • home appliances such as televisions, smart boxes, game consoles
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDAs personal digital assistants
  • handheld devices with wireless communication functions computing devices or other processing devices connected to wireless modems
  • vehicle-mounted devices wearable devices
  • terminal devices in 5G networks or terminal devices in future evolved public land mobile networks (PLMNs)
  • PLMNs public land mobile networks
  • wearable devices can also be called wearable smart devices, which are a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories.
  • Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.
  • the terminal device can also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection.
  • IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrowband (NB) technology, for example.
  • NB narrowband
  • the terminal device may also be a vehicle or a whole vehicle, which can achieve communication through the Internet of Vehicles, or it may be a component located in the vehicle (for example, placed in the vehicle or installed in the vehicle), that is, a vehicle-mounted terminal device, a vehicle-mounted module or a vehicle-mounted unit (on-board unit, OBU).
  • a vehicle-mounted terminal device for example, placed in the vehicle or installed in the vehicle
  • OBU on-board unit
  • terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • sensors such as smart printers, train detectors, and gas stations.
  • Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.
  • the network device can be any device with wireless transceiver function.
  • the device includes but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (Wi-Fi), etc.
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station e.g., home evolved Node B, or home Node B, HNB
  • BBU baseband unit
  • Wi-Fi wireless fidelity
  • the access point (AP), wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP) in the system can also be a gNB in a 5G, such as NR, system, or a transmission point (TRP or TP), one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (DU), or a base station in a next generation communication 6G system, etc.
  • a 5G such as NR, system
  • TRP or TP transmission point
  • TRP or TP transmission point
  • a network node constituting a gNB or a transmission point such as a baseband unit (BBU), or a distributed unit (DU), or a base station in a next generation communication 6G system, etc.
  • BBU baseband unit
  • DU distributed unit
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some of the functions of the gNB, and the DU implements some of the functions of the gNB.
  • the CU is responsible for handling non-real-time protocols and services, implementing radio resource control (RRC), and packet data aggregation layer.
  • RRC radio resource control
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizing the functions of the radio link control (RLC) layer, the medium access control (MAC) layer and the physical (PHY) layer.
  • the AAU implements some physical layer processing functions, RF processing and related functions of active antennas.
  • the network device can be a device including one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into a network device in the access network (radio access network, RAN), and the CU can also be divided into a network device in the core network (core network, CN), and this application does not limit this.
  • the network equipment provides services for the cell, and the terminal equipment communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment.
  • the cell can belong to a macro base station (for example, macro eNB or macro gNB, etc.), or to a base station corresponding to a small cell.
  • the small cells here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • FIG1 is a schematic diagram of a communication system 100 applicable to a communication method according to an embodiment of the present application.
  • the communication system 100 may include a network device (e.g., a host base station), a relay device (e.g., IAB node 1 and IAB node 2), and a terminal device (e.g., UE1 and UE2).
  • the link between the network device and the relay device may be referred to as a backhaul (BH) link, and the link between the relay device and the terminal device may be referred to as an access (AC) link.
  • BH backhaul
  • AC access
  • Network devices may also be referred to as “donor network devices”, “host network devices”, “host base stations” or “relay devices”.
  • the host base station may be an access network element with complete base station functions, or an access network element with a centralized unit CU and a distributed unit DU separated.
  • the network device may be an IAB node, or a node for relaying communication.
  • the relay device may be deployed at a location farther from the base station or access device than the terminal device, and the access device may be another relay device.
  • the relay device may be referred to as a relay node (relaying node, RN), a relay transmission and reception point (relaying transmission and reception point, rTRP), or an integrated access and backhaul node (integrated access and backhaul node, IAB node).
  • the superior node of the relay node may be a gNB (including gNB-DU, gNB-CU, etc.) or another relay node.
  • the IAB relay system can support multi-level relay, that is, the IAB node can establish a wireless backhaul link with one or more upper-level nodes and access the host base station through the one or more upper-level nodes.
  • an IAB node can also provide services for one or more lower-level nodes.
  • the host base station can communicate with IAB node 1 or directly with user equipment UE1; similarly, IAB node 1 can communicate with IAB node 2 or with user equipment UE2, etc.
  • the communication system may also include a core network device.
  • the core network device may be connected to multiple access network devices to control the access network devices, and distribute the data received from the network side (e.g., the Internet) to the access network devices.
  • FIG2 is another schematic diagram of a network architecture applicable to the present application.
  • the host base station can be further divided into CU and DU functionally and logically;
  • the IAB node can be further divided into a mobile terminal (mobile-termination, MT) module and a distributed unit (distributed unit, DU) module functionally and logically.
  • MT mobile terminal
  • DU distributed unit
  • the MT function is defined as a component similar to UE.
  • MT is called a function residing on the IAB node.
  • MT is similar to the function of a common UE, and the IAB node can access the upper node or network through MT.
  • the DU function is relative to the CU function.
  • the base station function is divided into two parts, which is called CU-DU separation.
  • the CU includes the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer of the original LTE base station.
  • the DU includes the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU includes the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the CU is mainly responsible for processing non-real-time protocols and services, such as radio resource control and configuration, inter-cell mobility management, and bearer management;
  • the DU is mainly responsible for processing physical layer protocols and real-time services, such as scheduling, physical signal generation and transmission.
  • These protocols The functions of a layer may be implemented by one node or by multiple nodes.
  • a RAN device may include a centralized unit CU and a distributed unit DU, and multiple DUs may be centrally controlled by one CU.
  • downlink transmission is performed between CU and DU, and the F1-AP data packet generated by CU is encapsulated into an IP packet and transmitted between air interface multi-hop nodes (for example, IAB node 1 and IAB node 2).
  • air interface multi-hop nodes for example, IAB node 1 and IAB node 2.
  • the data packet arrives at the target IAB node, it is processed by the MT module adaptation layer of the target IAB, and then transferred to the DU module of the local IAB for processing, and finally parsed into an F1-AP data packet in the DU.
  • the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU.
  • the DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing it.
  • Upper node A node that receives data or signals during uplink transmission, or a node that sends data or signals during downlink transmission.
  • a node or network device that provides wireless backhaul link resources can be referred to as an upper node of a relay device.
  • Lower-level node A node that sends data or signals during uplink transmission, or a node that receives data or signals during downlink transmission; for example, a node that uses backhaul link resources to transmit data to the network, or receives data from the network, can be called a lower-level node.
  • a relay device is called a lower-level node of a network device, and the network is a network above a core network or other access network, such as the Internet, a private network, etc.
  • Access link refers to the wireless link used by a node to communicate with its subordinate nodes, including uplink and downlink transmission links. Uplink transmission on the access link is also called uplink transmission of the access link, and downlink transmission is also called downlink transmission of the access link.
  • the nodes include but are not limited to the aforementioned IAB nodes.
  • a backhaul link refers to a wireless link used by a node to communicate with its upper node and/or lower node, including uplink and downlink transmission links. Uplink transmission on a backhaul link is also called uplink transmission of the backhaul link, and downlink transmission is also called downlink transmission of the backhaul link.
  • the nodes include but are not limited to the aforementioned IAB nodes.
  • Spatial duplex multiplexing can be understood as allowing the same frequency band to be reused in different spaces, using orthogonal channels in multiple spaces to simultaneously transmit signals to achieve the purpose of capacity expansion. In simple terms, it is to receive signals from multiple directions at the same time. In order to improve spectrum efficiency, spatial duplex multiplexing scenarios are widely used.
  • Time division multiplexing can be understood as using different time periods of a unified physical connection to transmit different signals to achieve the purpose of multi-channel transmission. Time division multiplexing uses time as the parameter for signal division, so it is necessary to make sure that the signals on each channel do not overlap on the time axis. In other words, the time provided for the entire channel to transmit information is divided into several time slots, and these time slots are allocated to each signal source.
  • Frequency division multiplexing can be understood as dividing the total bandwidth used for the transmission channel into several sub-bands (sub-channels). Each sub-channel transmits one signal. Guard bands are set up between the sub-channels for isolation so that the transmitted signals do not interfere with each other. The signals transmitted by the sub-channels work in parallel.
  • the resource configuration of the IAB node may include MT resource configuration and DU resource configuration.
  • the MT resource configuration is used to indicate the resources of the MT of the IAB node when communicating with the upper node;
  • the DU resource configuration is used to indicate the resources of the DU of the IAB node when communicating with the lower node.
  • Rel-16 only supports IAB MT and DU time division multiplexing, that is, the backhaul link (corresponding to MT) and the access link (corresponding to DU) work at different times, so the IAB node needs to switch between the transmission and reception of the backhaul link and the transmission and reception of the access link.
  • MT resources and DU resources can be configured.
  • MT resource configuration is similar to the common UE resource configuration in the NR protocol, that is, the base station can configure the transmission direction of each time slot for the MT.
  • This configuration can be a periodic configuration.
  • a specific time slot and multiple symbols in the time slot can be configured as downlink (D), uplink (U), and flexible (F).
  • the DU resource configuration is used to indicate the resource configuration of the DU of the IAB node when communicating with the lower-level node.
  • the DU resources of the IAB node can be configured as three types: uplink, downlink, and flexible. Unlike the MT transmission direction used for the backhaul link, the DU transmission direction configuration is for the UE accessing the DU.
  • the uplink resources, downlink resources and flexible resources of the DU resources can be divided into two categories: hard (H) and soft (S). Among them, DU hard resources indicate resources that are always available to the DU; DU soft resources indicate whether the DU can use the resource, depending on the instruction of the upper-level node.
  • the DU also has an unavailable (NA, Not Available) resource type, which means that the DU cannot use the resource at all.
  • NA Not Available
  • the MT does not expect to receive the schedule (or the MT's transmission and reception does not affect the operation of the DU).
  • the DU is configured to the NA time slot, the DU does not work, and the MT can send and receive signals normally.
  • the DU is configured to S, The upper node is required to further indicate whether the resource DU of the time slot is available.
  • downlink means that the resources are used for downlink transmission
  • uplink means that the resources are used for uplink transmission
  • flexible means that the transmission direction of the resources depends on further instructions from the upper node.
  • FIG3 is a schematic diagram of an example of resource utilization under the DU time domain resource configuration supported by the current protocol Rel-16. As shown in FIG3, the horizontal and vertical axes represent the time domain resources and the frequency domain resources, respectively. Rel configures the time domain H, S, S, and NA resources for the entire cell, that is, the cell global ID (CGI) 1.
  • CGI cell global ID
  • the hard (H) resources in the time domain are resources that are definitely available to the DU, and the MT generally does not use the time domain resources for communication;
  • the not available (NA) resources in the time domain are resources that are unavailable to the DU, and the MT can use the time domain resources for communication;
  • the soft (S) resources in the time domain are resources whose availability to the DU depends mainly on further instructions from the upper-level node.
  • the horizontal axis can be regarded as the configuration of the four different time domain resources of the cell, that is, the first time domain resource of the DU cell is definitely available, the availability of the second and third time domain resources depends on the instruction of the upper node, and the fourth time slot resource is not available.
  • the MT only has the configuration of the uplink/downlink transmission direction, and no H/S/NA resources are configured. Because the upper node knows the resource configuration of the lower node, in order to avoid the conflict between the MT and the DU, the upper node does not schedule the MT in the first time domain resource.
  • the upper node DU sends downlink control information (DCI) signaling to the lower node to further indicate whether the DU is available in the second and third time domain resources.
  • DCI downlink control information
  • the MT can choose to schedule or not according to the transmission requirements.
  • Figure 4 is a schematic diagram of an example of resource utilization under the DU frequency domain resource configuration supported by the current protocol Rel-17. As shown in Figure 4, the horizontal and vertical axes represent time domain resources and frequency domain resources respectively.
  • This solution is to first divide the original entire cell bandwidth into multiple parts in the frequency domain, and the bandwidth sizes can be different, that is, to divide the frequency domain resources (for example, resource block group 1 and resource block group 2) and refine them into the granularity of frequency domain resource block group RBG; then configure the time domain H/S/NA on each smaller frequency domain granularity.
  • the horizontal axis can be regarded as the configuration of four different time slot resources of the cell.
  • the first time domain resource is definitely available, and whether the second and third time domain resources are available depends on the instruction of the upper-level node, and the fourth time domain resource is not available;
  • resource block group 2 the first and second time domain resources are definitely available, and whether the third time domain resource is available depends on the instruction of the upper-level node, and the fourth time domain resource is not available.
  • the resource configuration of the IAB node can be determined based on the MT resource configuration and the DU resource configuration.
  • the resource type of the DU and the corresponding transmission direction can be transmitted between the CU and the DU through the F1-AP interface signaling.
  • the "GNB-DU RESOURCE CONFIGURATION" defined in 3GPP TS 38.473 9.2.9.3, which includes the "gNB-DU Cell Resource Configuration” implements the specific configuration of the DU resources.
  • the "DUF Slot Configuration item" in the "gNB-DU Cell Resource Configuration” is used to configure the transmission direction of the DU, including uplink, downlink and flexible.
  • the "HSNA Slot Configuration list” related configuration in the "gNB-DU Cell Resource Configuration” is used to configure the attributes of the DU resources (H, S, NA).
  • the upper node may determine the availability of soft resources on the IAB-DU by sending downlink control information carrying indication information.
  • the downlink control information may be DCI 2_5.
  • the DU may send or receive in the symbol, respectively, either sending or receiving.
  • the DU may send or receive in the corresponding symbol upon receiving an indication from the upper node that resources are available.
  • the protocol supports the following configuration information related to dynamic indication:
  • DCI 2_5 indicates availabilityCombinationsPerCellIndex
  • iab-DU-CellIdentity indicates the target cell ID
  • positionInDCI-AI-r16 indicates the position of the indication information in DCI 2_5.
  • AvailabilityCombinations includes resource availability indications for one or more time slots, and the availability indication for each time slot is indicated by 3 bits of information. The meaning of the 3 bits of information can be predefined by the protocol.
  • AvailabilityCombinations includes a sequence consisting of multiple values (ie, the value in the above table), which corresponds to the resource availability of multiple time slots.
  • the IAB DU resource configuration supported by the current protocol Rel-17 further supports the configuration of frequency domain resources.
  • the solution is to first divide the original entire cell bandwidth into multiple parts in the frequency domain, and the bandwidth sizes of the multiple frequency domain resources can be different.
  • the frequency domain resources of the cell can be divided into multiple resource block groups (for example, resource block group 1 and resource block group 2), that is, the cell frequency domain resources are refined into the granularity of resource block set RB set; and then the time domain H/S/NA is configured separately on each smaller frequency domain granularity.
  • the protocol allows frequency division resource configuration for some time slots, and the existing resource configuration of Rel-16 still exists.
  • Rel-17 supports indicating availabilityCombinations for multiple RB-SetGroups separately.
  • the resource configuration of the IAB node may include at least one of the availability configuration of the time domain resources and the availability configuration of the frequency domain resources.
  • the IAB node may receive at least one of the availability indication for the time slot resources and the availability indication for the frequency domain resources. In this case, how to flexibly indicate the resource availability of the IAB node is a problem that needs to be solved.
  • the communication method provided by the embodiment of the present application will be described in detail below in conjunction with the accompanying drawings.
  • the communication method provided by the present application can be applied to the network architecture shown in FIG1 above, without limitation.
  • the time unit mentioned in the embodiments of the present application may be a time slot, or a symbol, or a subframe, or a frame, or a mini-subframe, or a mini-time slot.
  • the time domain resources mentioned in the embodiments of the present application may be a time unit; the frequency domain resources may be a resource block set (RB set), a resource block set group (RBG), a partial bandwidth BWP, etc., which are not specifically limited in the present application.
  • radio resource control signaling includes: radio resource control RRC signaling; MAC layer signaling includes: MAC control element (CE); physical layer signaling includes: downlink control information (DCI), etc.
  • whether the S resource is available can be determined as “available” or “unavailable” after being further indicated, or can be determined as “available", “indication of availability” or “no indication of availability”.
  • the indication of availability can be configured for one or more of the three TDD transmission direction configurations of uplink, downlink and flexible. For example, the uplink resources of S are indicated as available through signaling, while the downlink and flexible resources are not indicated as available. It should be noted that "no indication of availability" is different from unavailable, that is, there is no restriction on the IAB node (specifically, it can be the DU of the IAB node) being unavailable on the resource.
  • Fig. 5 shows a schematic diagram of a communication method 500 provided in an embodiment of the present application.
  • the method 500 may include the following steps.
  • the second node sends indication information to the first node
  • the first node receives the indication information from the second node.
  • the first node is configured with resource configuration information
  • the resource configuration information may include at least one of first configuration information and second configuration information.
  • the first configuration information is used to configure the distribution of at least one resource in the time domain.
  • the second configuration information is used to configure the distribution of the at least one resource in the frequency domain.
  • the first configuration information is used to configure the resource type of the time domain resources of the first node; and the second configuration information is used to configure the resource type of the frequency domain resources of the first node.
  • the at least one resource includes at least one of the following resources: an available resource, an unavailable resource, and a resource whose availability is indicated by the parent node of the first node (referred to as the first resource for convenience of description). That is, the resource type includes the above three types.
  • the first configuration information can be used to configure the resource type of each time unit in the first set.
  • the second configuration information is used to configure the resource type of at least one frequency domain resource group, the at least one frequency domain resource group corresponds to a second time unit in the time domain, and the second time unit includes part or all of the time units in the first set.
  • the resource type includes certain available resources, unavailable resources and the second resource.
  • the time unit corresponding to the frequency domain resource group in the time domain can be understood as at least one frequency domain resource group being divided in the frequency domain of the time unit, and the at least one frequency domain resource group corresponds to the time unit.
  • the first indication information can be used to indicate the resource availability of the first time unit in the first set, and the first time unit is the time unit configured with the second resource; the second indication information is used to indicate the resource availability of the first frequency domain resource group, and the first frequency domain resource group is the frequency domain resource group configured with the second resource in the at least one frequency domain resource group.
  • the second node is an upper-level integrated access backhaul IAB node of the first node
  • the third node is a lower-level IAB node of the first node or a terminal device served by the first node.
  • the first node determines a first resource according to the resource configuration information and the indication information.
  • the first resource may be a resource used for the first node to communicate with the second node and/or the third node.
  • the first node may determine the first resource according to the configuration information in a variety of situations:
  • Case 1 The first node is configured with first configuration information and second configuration information.
  • the first node may determine the first resource including the following examples.
  • Example #1 the indication information includes the first indication information.
  • the fact that the indication information includes the first indication information can be understood as the second node sending the first indication information to the first node but not sending the second indication information.
  • the first node determines that the first resource includes the available resource configured by the second configuration information.
  • the available resource configured by the second configuration information includes the H resource configured by the second configuration information.
  • the first node has the first configuration information and the second configuration information, and receives the first indication information.
  • the first node communicates with the second node and/or the third node through the available resources configured by the second configuration information in the time unit #1.
  • the configuration of the corresponding second configuration information on the time unit #1 can be understood as dividing at least one frequency domain resource group on the frequency domain resources of the time unit #1.
  • the time units in the first set include the time unit #1.
  • Example #2 the indication information includes the first indication information, and the first indication information does not indicate availability.
  • the fact that the first indication information does not indicate availability can be understood as that the first indication information indicates the resource availability of the second resource in the first set, and the first indication information does not indicate that the second resource is available.
  • the first node determines that the first resource includes the available resource configured by the second configuration information.
  • time unit #2 is configured with the first configuration information and the second configuration information, and the first indication information does not indicate that the time unit #2 is available, then the first node determines to communicate with the second node and/or the third node through the available resource configured by the second configuration information on the time unit #2.
  • Example #3 The first node does not receive the first indication information.
  • the fact that the first node has not received the first indication information can be understood as that the second node has sent the first indication information to the first node, but the first node has not received the first indication information.
  • the first node can communicate with the second node and/or the third node through the frequency domain resource #1 corresponding to the time unit configured with the second configuration information.
  • the frequency domain resource #1 includes a frequency domain resource group configured with available resources in at least one frequency domain resource group configured with the second configuration information.
  • the indication information includes the first indication information, and the first indication information indicates that some symbols in the first time unit are available, and other symbols are not indicated to be available.
  • the first node can determine, through the second configuration information, the resource availability of the frequency domain resource group corresponding to the symbol that is not indicated as available. For example, if the frequency domain resources corresponding to the symbol that is not indicated as available include an indication of a frequency domain resource group configured as H, then the first node determines that the symbol that is not indicated as available is available.
  • the first node can communicate with the second node and/or the third node through the available symbols indicated by the first indication information, and the corresponding frequency domain resource group is configured as available symbols among the symbols not indicated by the first indication information.
  • Example #5 the indication information includes first indication information and second indication information.
  • the first node determines the resource availability of the first frequency domain resource group based on the second indication information; the first resource includes the frequency domain resource group configured as available by the second configuration information, and the frequency domain resource group indicated as available in the first frequency domain resource group.
  • the first resource includes the time unit configured as available by the first configuration information and the time unit indicated as available by the first indication information.
  • the first resource includes the resource configured as available by the second configuration information.
  • the first node can determine, through the second configuration information, the resource availability of the frequency domain resource group corresponding to the symbol that does not indicate availability.
  • the frequency domain resources corresponding to the symbol that does not indicate availability include an indication of a frequency domain resource group configured as H, then the first node determines that the symbol that does not indicate availability is available.
  • the first node can communicate with the second node and/or the third node through the available symbols indicated by the first indication information, and the corresponding frequency domain resource group is configured as available symbols among the symbols not indicated by the first indication information.
  • Case 2 The first node is configured with the first configuration information.
  • the second situation can be understood as that the first node is configured with the first configuration information, and the first node is not configured with the second configuration information, that is, the first node is only configured with the resource type of the time domain resource, and the resource type is not configured on the frequency domain resource corresponding to the time domain resource.
  • Example #1 the indication information includes the second indication information.
  • This example can be understood as that the first node only configures the resource type of each time unit in the first set, and the first node receives second indication information from the second node, and the second indication information indicates the resource availability of at least one frequency domain resource group (for example, the first frequency domain resource group).
  • the first node determines the resource availability of the first time unit according to the resource availability of one or more frequency domain resource groups in the first frequency domain resource group.
  • the first node determines, based on resource availability of a first frequency domain resource group in the first frequency domain resource group, Determine resource availability of the first time unit. Specifically, if the first node determines that the first frequency domain resource group in the first frequency domain resource group is indicated as available, then the first time unit is indicated as available.
  • the first node determines the resource availability of the first time unit according to the resource availability of each frequency domain resource group in the first frequency domain resource group.
  • the first node determines the resource availability of the first time unit according to the resource availability of each frequency domain resource group in the first frequency domain resource group, which can be understood as the first node determining the resource availability of the first time unit according to the resource availability of all frequency domain resource groups in the first frequency domain resource group.
  • the first time unit is indicated as available.
  • the first time unit is indicated as available.
  • the resource availability of each frequency domain resource group in the first frequency domain resource group corresponds to the resource availability of at least one symbol
  • the first node determines the resource availability of the first time slot based on the resource availability of each frequency domain resource group in the first frequency domain resource group, including: if the first symbol corresponding to each frequency domain resource group in the first frequency domain resource group is indicated as available, then the first symbol of the first time slot is available; or, if the first symbol corresponding to any one of the frequency domain resource groups in the first frequency domain resource group is indicated as available, then the first symbol of the first time slot is available.
  • each symbol can be used for uplink or downlink
  • the second node's indication of the resource availability of the first time unit is also performed on a time unit basis.
  • the second node can define one or more of the eight available states shown in Table 1 for a time unit of the first node. Each situation can be indicated based on 3 bits, which are used to indicate that all or part of the symbols in the transmission direction within a time unit are available, or no indication of availability (no indication of availability).
  • the protocol requires that the transmission or non-transmission of the first node (e.g., the DU of the first node) on the resource does not affect the use of the resource by the co-station MT.
  • the first node communicates with the second node and/or the third node through the first resource.
  • FIG6 is a schematic diagram of a communication device 10 applicable to an embodiment of the present application.
  • the communication device 10 includes: a transceiver unit 11 and a processing unit 12 .
  • the communication device 10 may correspond to the first node in the method 500 according to the embodiment of the present application, and the communication device 10 may include a module (or unit) for executing the method executed by the first node.
  • each module (or unit) in the communication device 10 and the above-mentioned other operations and/or functions are for implementing the corresponding process of the method 500.
  • the communication device may correspond to the first node of the aforementioned method embodiment, and the above-mentioned and other management operations and/or functions of each module (or unit) in the communication device 10 are respectively for implementing the corresponding steps of the aforementioned methods, and therefore the beneficial effects in the aforementioned method embodiments can also be achieved.
  • processing module in the embodiments of the present application can be implemented by a processor
  • transceiver module or unit
  • transceiver can be implemented by a transceiver
  • Figure 7 is a schematic diagram of a communication device (also referred to as a relay device or a terminal device) 40 provided in an embodiment of the present application.
  • the device 40 can be a first node, or a component that can be used for the first node, or a terminal device (for example, UE), or a chip or circuit, such as a chip or circuit that can be set in a relay device or a terminal device.
  • the device 40 may include a processor 41 (i.e., an example of a processing unit) and a memory 42.
  • the memory 42 is used to store instructions
  • the processor 41 is used to execute the instructions stored in the memory 42, so that the device 40 implements the steps performed by the first node (e.g., the first IAB node) in the above method (e.g., method 500).
  • the device 40 may further include an input port 43 (i.e., an example of a communication unit) and an output port 44 (i.e., another example of a communication unit).
  • an input port 43 i.e., an example of a communication unit
  • an output port 44 i.e., another example of a communication unit.
  • the processor 41, the memory 42, the input port 43, and the output port 44 may communicate with each other through an internal connection path to transmit control and/or data signals.
  • the memory 42 is used to store computer programs, and the processor 41 can be used to call and run the computer program from the memory 42 to control the input port 43 to receive signals and the output port 44 to send signals, thereby completing the steps of the network device in the above method.
  • the memory 42 may be integrated into the processor 41 or may be provided separately from the processor 41 .
  • the device 40 is a relay device or a terminal device
  • the input port 43 is a receiver
  • the output port 44 is a transmitter.
  • the receiver and the transmitter may be the same or different physical entities. When they are the same physical entity, they may be collectively referred to as a transceiver.
  • the input port 43 is an input interface
  • the output port 44 is an output interface
  • the functions of the input port 43 and the output port 44 may be implemented by a transceiver circuit or a dedicated transceiver chip.
  • the processor 41 may be implemented by a dedicated processing chip, a processing circuit, a processor or a general-purpose chip.
  • the first node e.g., the first IAB node
  • the program code that implements the functions of the processor 41, the input port 43, and the output port 44 is stored in the memory 42, and the general-purpose processor implements the functions of the processor 41, the input port 43, and the output port 44 by executing the code in the memory 42.
  • the input port 43 is used to receive first information
  • the first information includes indication information of a first pattern
  • the first pattern is one of a plurality of patterns
  • each of the plurality of patterns is used to indicate the distribution of at least one resource in the frequency domain
  • the at least one resource includes at least one of the following resources: a first resource, a second resource, and a third resource
  • the first resource is a resource that is definitely available
  • the second resource is an unavailable resource
  • whether the third resource is available is determined by the first indication information
  • the first indication information is sent by the first network device, wherein the resource distributions indicated by any two patterns are different;
  • the processor 41 is configured to determine resources for communicating with a second network device and/or a terminal device according to the first pattern.
  • the processor 41 is further configured to determine, in the first time domain resources, resources for communicating with the second network device and/or the terminal device according to the first pattern.
  • the input port 43 is further used to receive second information, where the second information is used to indicate the first time domain resource
  • the apparatus 40 is configured in or is itself a relay device, a first node (eg, a first IAB node), or a terminal device (eg, UE).
  • a first node eg, a first IAB node
  • a terminal device eg, UE
  • each module or unit in the device 40 listed above is only exemplary descriptions.
  • Each module or unit in the device 40 can be used to execute the actions or processing procedures performed by the first node (for example, the first IAB node) in the above method 500.
  • the first node for example, the first IAB node
  • its detailed description is omitted.
  • SoC system-on-chip
  • all or part of the functions of the device 40 are implemented by SoC technology, for example, by a terminal device function chip, which integrates a processor, a memory, a communication interface and other devices, and the program of the terminal device related functions is stored in the memory, and the processor executes the program to implement the related functions of the user device.
  • the terminal device function chip can also read the memory outside the chip to implement the related functions of the user device.
  • the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
  • CPU central processing unit
  • DSP digital signal processors
  • ASIC application-specific integrated circuits
  • FPGA field programmable gate arrays
  • a general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory.
  • the volatile memory may be a random access memory (RAM), which is used as an external cache.
  • RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous DRAM
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • DR RAM direct rambus RAM
  • the above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination.
  • the above embodiments can be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
  • the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or a data center containing one or more available media sets.
  • the available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium.
  • the semiconductor medium can be a solid-state hard disk.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program and/or a computer.
  • applications and computing devices running on a computing device can be components.
  • One or more components may reside in a process and/or an execution thread, and a component may be located on a computer and/or distributed between two or more computers.
  • these components may be executed from various computer-readable media having various data structures stored thereon.
  • Components may, for example, communicate through local and/or remote processes according to signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and/or a network, such as the Internet interacting with other systems through signals).
  • signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and/or a network, such as the Internet interacting with other systems through signals).
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • this function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium.
  • the technical solution of the present application can essentially or in other words, the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

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Abstract

本申请提供了一种通信方法和装置,该通信方法包括:第一节点接收来自第二节点的第二指示信息,该第一节点配置了第一配置信息,该第一配置信息用于配置第一集合中各时隙的资源类型,该第一集合包括第一时隙,该第一时隙为配置了第一资源的时隙,该第二指示信息指示至少一个频域资源组的资源可用性;该第一节点根据该第一频域资源组中一个或多个频域资源组的资源可用性,确定该第一时隙的资源可用性;该第一节点通过该第一时隙中被指示为可用的时隙与第三节点通信;其中,该第二节点为该第一节点的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该第一节点所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。能够实现对中继节点的资源可用性灵活指示。

Description

通信方法和通信装置
本申请要求于2022年9月30日提交中国专利局、申请号为202211217127.X、申请名称为“通信方法和通信装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,并且更具体地,涉及一种通信方法和通信装置。
背景技术
第五代移动通信系统(5th generation,5G)中引入了接入回传一体化(integrated access and backhaul,IAB)网络技术,IAB网络中的接入链路(access link)和回传链路(backhaul link)可采用无线传输方案,减少了光纤部署,从而降低了部署成本。
在IAB网络中,IAB节点的资源配置可以包括时域资源的可用性配置以及频域资源的可用性配置中至少一种,同时,IAB节点可能接收到针对时隙资源的可用性指示以及频域资源可用性指示中的至少一种。在这种情况下,如何灵活地指示IAB节点的资源可用性是需要解决的问题。
发明内容
本申请提供一种通信方法和装置,能够实现对中继节点的资源可用性灵活指示,提升系统的通信性能。
第一方面,提供了一种通信方法,该方法包括:第一节点接收来自第二节点的第二指示信息,该第一节点配置了第一配置信息,该第一配置信息用于配置第一集合中各时隙的资源类型,该第一集合包括第一时隙,该第一时隙为配置了第一资源的时隙,该第二指示信息指示至少一个频域资源组的资源可用性;该第一节点根据该第一频域资源组中一个或多个频域资源组的资源可用性,确定该第一时隙的资源可用性;该第一节点通过该第一时隙中被指示为可用的时隙与第三节点通信;其中,该第二节点为该第一节点的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该第一节点所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第一方面,在第一方面的某些实现方式中,该第一节点根据该第一频域资源组中一个或多个频域资源组的资源可用性,确定该第一时隙的资源可用性,包括:该第一节点根据该第一频域资源组中的第一个频域资源组的资源可用性,确定该第一时隙的资源可用性;或者,该第一节点根据该第一频域资源组中的每个频域资源组的资源可用性,确定该第一时隙的资源可用性。
结合第一方面,在第一方面的某些实现方式中,若该第一频域资源组中每个频域资源组被指示可用,则该第一时隙可用。
结合第一方面,在第一方面的某些实现方式中,若该第一频域资源组中每个频域资源组被指示可用,则该第一时隙可用;或者,若该第一频域资源组中的任一个频域资源组被指示可用,则该第一时隙可用。
结合第一方面,在第一方面的某些实现方式中,该第一频域资源组中每个频域资源组的资源可用性对应至少一种符号的资源可用性,若该第一时隙的第一符号对应的至少一个频域资源组中的每个频域资源组被指示可用,则该第一符号可用;或者,若该第一时隙的第一符号对应的至少一个频域资源组中的任一个频域资源组被指示可用,则该第一符号可用;其中,该至少一种符号包括该第一符号,该第一符号为上行符号、下行符号或灵活符号。
第二方面,提供一种通信方法,该方法包括:第一节点接收来自第二节点的第一指示信息,该第一指示信息指示第一集合中第一时隙的资源可用性,该第一集合包括至少一个时隙,该第一时隙为配置了第一资源的时隙,该第一节点配置了第一配置信息和第二配置信息,该第一配置信息配置该第一集 合中各时隙的资源类型,该第二配置信息配置该第一集合中每个时隙对应的至少一个频域资源组的资源类型;该第一节点根据该第一指示信息确定第二资源;该第一节点通过该第二资源与第三节点通信,该第二节点为该第一节点的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该第一节点所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第二方面,在第二方面的某些实现方式中,若该第一指示信息不指示该第一时隙可用,则该第一节点确定该第二资源包括该第一时隙单元对应的至少一个频域资源组中的可用资源。
结合第二方面,在第二方面的某些实现方式中,若该第一集合中包括配置为可用资源的第二时隙,则该第一节点确定该第二资源包括该第二时隙;和/或,若该第一集合中包括配置为不可用的第三时隙,则该第一节点确定该第二资源包括该第三时隙。
结合第二方面,在第二方面的某些实现方式中,若该第一时隙中的第一符号被指示可用,且该第一时隙中的第二符号不指示可用,则该第一节点确定该第二资源包括该第一时隙对应的至少一个频域资源组中的可用资源;其中,该第一符号与该第二符号分别为上行符号、下行符号或灵活符号中的任一符号,该第一符号与该第二符号的符号类型不同。
第三方面,提供一种通信方法,包括:第一节点接收来自第二节点的第一指示信息和第二指示信息,该第一指示信息指示第一集合中第一时隙的资源可用性,该第一集合包括至少一个时隙,该第一时隙为配置了第一资源的时隙,该第二指示信息指示第一频域资源组的资源可用性,该第一频域资源组为配置了该第一资源的频域资源组,该第一节点配置了第一配置信息和第二配置信息,该第一配置信息用于配置该第一集合中各时隙的资源类型,该第二配置信息配置该第一集合中每个时隙对应的至少一个频域资源组的资源类型;该第一节点根据该第一指示信息和该第二指示信息中的至少一个指示信息确定第二资源;该第一节点通过该第一资源与第三节点通信,该第二节点为该第一节点的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该第一节点所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第三方面,在第三方面的某些实现方式中,该第一节点根据该第一指示信息和该第二指示信息中的至少一个指示信息确定第二资源,包括:该第一节点根据该第二指示信息确定该第二资源,该第二资源包括该第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
结合第三方面,在第三方面的某些实现方式中,该第一节点根据该第一指示信息和该第二指示信息中的至少一个指示信息确定第二资源,包括:该第一节点根据该第一指示信息确定该第二资源,该第一指示信息指示该第一时隙可用,该第二资源包括该第一时隙;或者,该第一节点根据该第一指示信息和该第二指示信息确定该第二资源。
结合第三方面,在第三方面的某些实现方式中,该第一节点根据该第一指示信息和该第二指示信息确定该第二资源,包括:该第一节点根据该第一指示信息确定该第一时隙不被指示可用;该第一节点根据该第二指示信息确定该第二资源,该第二资源包括该第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
结合第三方面,在第三方面的某些实现方式中,该第一节点根据该第一指示信息和该第二指示信息确定该第二资源,包括:该第一节点根据该第一指示信息确定该第一时隙中的第一符号可用,且该第一时隙中的第二符号不被指示可用;该第一节点根据该第二指示信息确定该第二资源,该第二资源包括该第一符号以及该第二符号对应的至少一个频域资源组中的可用资源。
第四方面,提供一种通信装置,包括收发单元和处理单元,该收发单元用于,接收来自第二节点的第二指示信息,该装置配置了第一配置信息,该第一配置信息用于配置第一集合中各时隙的资源类型,该第一集合包括第一时隙,该第一时隙为配置了第一资源的时隙,该第二指示信息指示至少一个频域资源组的资源可用性;该处理单元用于,根据该第一频域资源组中一个或多个频域资源组的资源可用性,确定该第一时隙的资源可用性;该第一节点通过该第一时隙中被指示为可用的时隙与第三节点通信;其中,该第二节点为该装置的上级一体化接入回传IAB节点,该第三节点为该装置的下级IAB节点或者该装置所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第四方面,在第四方面的某些实现方式中,该处理单元具体用于:根据该第一频域资源组中 的第一个频域资源组的资源可用性,确定该第一时隙的资源可用性;或者,根据该第一频域资源组中的每个频域资源组的资源可用性,确定该第一时隙的资源可用性。
结合第四方面,在第四方面的某些实现方式中,该处理单元具体用于:若该第一频域资源组中每个频域资源组被指示可用,则确定该第一时隙可用。
结合第四方面,在第四方面的某些实现方式中,该处理单元具体用于:若该第一频域资源组中每个频域资源组被指示可用,则确定该第一时隙可用;或者,若该第一频域资源组中的任一个频域资源组被指示可用,则确定该第一时隙可用。
结合第四方面,在第四方面的某些实现方式中,该第一频域资源组中每个频域资源组的资源可用性对应至少一种符号的资源可用性,该处理单元具体用于:若该第一时隙的第一符号对应的至少一个频域资源组中的每个频域资源组被指示可用,则确定该第一符号可用;或者,若该第一时隙的第一符号对应的至少一个频域资源组中的任一个频域资源组被指示可用,则确定该第一符号可用;其中,该至少一种符号包括该第一符号,该第一符号为上行符号、下行符号或灵活符号。
第五方面,提供一种通信装置,包括收发单元和处理单元,该收发单元用于,接收来自第二节点的第一指示信息,该第一指示信息指示第一集合中第一时隙的资源可用性,该第一集合包括至少一个时隙,该第一时隙为配置了第一资源的时隙,该装置配置了第一配置信息和第二配置信息,该第一配置信息配置该第一集合中各时隙的资源类型,该第二配置信息配置该第一集合中每个时隙对应的至少一个频域资源组的资源类型;该处理单元用于根据该第一指示信息确定第二资源;该收发单元还用于通过该第二资源与第三节点通信,该第二节点为该装置的上级一体化接入回传IAB节点,该第三节点为该装置的下级IAB节点或者该装置所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第五方面,在第五方面的某些实现方式中,该处理单元具体用于:若该第一指示信息不指示该第一时隙可用,则确定该第二资源包括该第一时隙单元对应的至少一个频域资源组中的可用资源。
结合第五方面,在第五方面的某些实现方式中,该处理单元还用于:若该第一集合中包括配置为可用资源的第二时隙,则确定该第二资源包括该第二时隙;和/或,若该第一集合中包括配置为不可用的第三时隙,则确定该第二资源包括该第三时隙。
结合第五方面,在第五方面的某些实现方式中,该处理单元具体用于:若该第一时隙中的第一符号被指示可用,且该第一时隙中的第二符号不指示可用,则确定该第二资源包括该第一时隙对应的至少一个频域资源组中的可用资源;其中,该第一符号与该第二符号分别为上行符号、下行符号或灵活符号中的任一符号,该第一符号与该第二符号的符号类型不同。
第六方面,提供一种通信装置,包括收发单元和处理单元,该收发单元用于,接收来自第二节点的第一指示信息和第二指示信息,该第一指示信息指示第一集合中第一时隙的资源可用性,该第一集合包括至少一个时隙,该第一时隙为配置了第一资源的时隙,该第二指示信息指示第一频域资源组的资源可用性,该第一频域资源组为配置了该第一资源的频域资源组,该第一装置配置了第一配置信息和第二配置信息,该第一配置信息用于配置该第一集合中各时隙的资源类型,该第二配置信息配置该第一集合中每个时隙对应的至少一个频域资源组的资源类型;该处理单元用于,根据该第一指示信息和该第二指示信息中的至少一个指示信息确定第二资源;该收发单元还用于通过该第一资源与第三节点通信,该第二节点为该装置的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该装置所服务的终端设备,该资源类型包括可用资源,不可用资源以及该第一资源,该第一资源是否可用由该第二节点指示。
结合第六方面,在第六方面的某些实现方式中,该处理单元具体用于:根据该第二指示信息确定该第二资源,该第二资源包括该第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
结合第六方面,在第六方面的某些实现方式中,该处理单元具体用于:根据该第一指示信息确定该第二资源,该第一指示信息指示该第一时隙可用,该第二资源包括该第一时隙;或者,根据该第一指示信息和该第二指示信息确定该第二资源。
结合第六方面,在第六方面的某些实现方式中,该处理单元具体用于:根据该第一指示信息确定该第一时隙不被指示可用;根据该第二指示信息确定该第二资源,该第二资源包括该第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
结合第六方面,在第六方面的某些实现方式中,该处理单元具体用于:根据该第一指示信息确定该第一时隙中的第一符号可用,且该第一时隙中的第二符号不被指示可用;根据该第二指示信息确定该第二资源,该第二资源包括该第一符号以及该第二符号对应的至少一个频域资源组中的可用资源。
第七方面,提供了一种第一节点,包括,处理器,可选地,还包括存储器,该处理器用于控制收发器收发信号,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得该第一节点和/或终端设备执行上述第一方面至第三方面或第一方面至第三方面中任一种可能实现方式中的方法。
可选地,该处理器为一个或多个,该存储器为一个或多个。
可选地,该存储器可以与该处理器集成在一起,或者该存储器与处理器分离设置。
可选地,该第一节点和/或终端设备还包括收发器,收发器具体可以为发射机(发射器)和接收机(接收器)。
第八方面,提供了一种通信系统,包括:第一节点和/或第二节点,用于执行上述第一方面至第三方面或第一方面至第三方面中任一种可能实现方式中的方法。
第九方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有计算机程序或代码,该计算机程序或代码在计算机上运行时,使得该计算机执行上述第一方面至第三方面或第一方面至第三方面中任一种可能实现方式中的方法。
第十方面,提供了一种芯片,包括至少一个处理器,该至少一个处理器与存储器耦合,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得安装有该芯片系统的第一节点执行上述第一方面至第三方面或第一方面至第三方面中任一种可能实现方式中的方法。
其中,该芯片可以包括用于发送信息或数据的输入电路或者接口,以及用于接收信息或数据的输出电路或者接口。
第十一方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码被网络设备运行时,使得该第一节点执行上述第一方面至第三方面或第一方面至第三方面中任一种可能实现方式中的方法。
附图说明
图1是适用本申请的网络架构的一例示意图。
图2是适用本申请的接入回传一体化IAB节点结构的一例示意图。
图3是当前协议支持的DU时域资源配置下的资源利用的一例示意图。
图4是当前协议支持的DU时域资源配置下的资源利用的另一例示意图。
图5是本申请实施例提供的通信方法的的交互流程图。
图6是本申请实施例提供的一种通信装置的示意图。
图7是本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、第五代(5th Generation,5G)移动通信系统或新空口(new radio,NR)。其中,5G移动通信系统可以是非独立组网(non-standalone,NSA)或独立组网(standalone,SA)。
本申请提供的技术方案还可以应用于机器类通信(machine type communication,MTC)、机器间通信长期演进技术(long term evolution-machine,LTE-M)、设备到设备(device-to device,D2D)网络、机器到机器(machine to machine,M2M)网络、物联网(internet of things,IoT)网络或者其他网络。 其中,IoT网络例如可以包括车联网。其中,车联网系统中的通信方式统称为车到其他设备(vehicle to X,V2X,X可以代表任何事物),例如,该V2X可以包括:车辆到车辆(vehicle to vehicle,V2V)通信,车辆与基础设施(vehicle to infrastructure,V2I)通信、车辆与行人之间的通信(vehicle to pedestrian,V2P)或车辆与网络(vehicle to network,V2N)通信等。
本申请提供的技术方案还可以应用于未来的通信系统,如第六代(6th Generation,6G)移动通信系统等。本申请对此不作限定。
在本申请实施例中,终端设备也可以称为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。
终端设备可以是一种向用户提供语音/数据连通性的设备,例如,具有无线连接功能的手持式设备、车载设备等。目前,一些终端的举例可以为:手机(mobile phone)、平板电脑(pad)、带无线收发功能的电脑(如笔记本电脑、掌上电脑等)、移动互联网设备(mobile internet device,MID)、虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端(例如,电视机等家电、智慧盒子、游戏机)、蜂窝电话、无绳电话、会话启动协议(session initiation protocol,SIP)电话、无线本地环路(wireless local loop,WLL)站、个人数字助理(personal digital assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network,PLMN)中的终端设备等。
其中,可穿戴设备也可以称为穿戴式智能设备,是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称,如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上,或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备,更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能,例如:智能手表或智能眼镜等,以及只专注于某一类应用功能,需要和其它设备如智能手机配合使用,如各类进行体征监测的智能手环、智能首饰等。
此外,终端设备还可以是物联网(Internet of things,IoT)系统中的终端设备。IoT是未来信息技术发展的重要组成部分,其主要技术特点是将物品通过通信技术与网络连接,从而实现人机互连,物物互连的智能化网络。IoT技术可以通过例如窄带(narrow band,NB)技术,做到海量连接,深度覆盖,终端省电。
在本申请实施例中,该终端设备还可以是车辆或整车,通过车联网可以实现通信,也可以是位于车辆内(例如放置在车辆内或安装在车辆内)的部件,即车载终端设备、车载模块或者车载单元(on-board unit,OBU)。
此外,终端设备还可以包括智能打印机、火车探测器、加油站等传感器,主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据,并发送电磁波,向网络设备传输上行数据。
本申请实施例中,网络设备可以是任意一种具有无线收发功能的设备。该设备包括但不限于:演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(baseband unit,BBU),无线保真(wireless fidelity,WiFi)系统中的接入点(access point,AP)、无线中继节点、无线回传节点、传输点(transmission point,TP)或者发送接收点(transmission and reception point,TRP)等,还可以为5G,如,NR,系统中的gNB,或,传输点(TRP或TP),5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU),或,分布式单元(distributed unit,DU),或者下一代通信6G系统中的基站等。
在一些部署中,gNB可以包括集中式单元(centralized unit,CU)和DU。gNB还可以包括有源天线单元(active antenna unit,AAU)。CU实现gNB的部分功能,DU实现gNB的部分功能。比如,CU负责处理非实时协议和服务,实现无线资源控制(radio resource control,RRC),分组数据汇聚层 协议(packet data convergence protocol,PDCP)层的功能。DU负责处理物理层协议和实时服务,实现无线链路控制(radio link control,RLC)层、媒体接入控制(medium access control,MAC)层和物理(physical,PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息,或者,由PHY层的信息转变而来,因而,在这种架构下,高层信令,如RRC层信令,也可以认为是由DU发送的,或者,由DU和CU发送的。可以理解的是,网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外,可以将CU划分为接入网(radio access network,RAN)中的网络设备,也可以将CU划分为核心网(core network,CN)中的网络设备,本申请对此不做限定。
网络设备为小区提供服务,终端设备通过网络设备分配的传输资源(例如,频域资源,或者说,频谱资源)与小区进行通信,该小区可以属于宏基站(例如,宏eNB或宏gNB等),也可以属于小小区(small cell)对应的基站,这里的小小区可以包括:城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等,这些小小区具有覆盖范围小、发射功率低的特点,适用于提供高速率的数据传输服务。
图1是适用于本申请实施例的通信方法的通信系统100的示意图。如图1所示,该通信系统100可以包括网络设备(例如,宿主基站)、中继设备(例如,IAB节点1和IAB节点2)和终端设备(例如,UE1和UE2)。其中,网络设备和中继设备之间的链路可以称为回传(backhaul,BH)链路,中继设备和终端设备之间的链路可以称为接入(access,AC)链路。
本申请对网络设备和中继设备、中继设备和网络设备之间的链路名称、以及中继设备和终端设备之间的链路名称不进行限定。网络设备还可以称为“供体网络设备”、“宿主网络设备”、“宿主基站”或“中继设备”。其中,宿主基站可以是一个具有完整基站功能的接入网网元,还可以是集中式单元CU和分布式单元DU分离形态的接入网网元。
在本申请实施例中,网络设备可以是IAB节点,或用于中继通信的节点。中继设备可以部署在相比在终端设备离基站或接入设备更远的地方,该接入设备可以是另一个中继设备。另外,中继设备可以称是中继节点(relaying node,RN),中继传输接收点(relaying transmission and reception point,rTRP),或者集成接入和回传节点(integrated access and backhaul node,IAB node),中继节点的上级节点可以是gNB(包括gNB-DU,gNB-CU等),也可以是另一个中继节点。
应理解,尽管图1给出的是中继设备通过无线空口直接连接到网络设备,但是IAB中继系统可以支持多级中继,即IAB节点可以与一个或多个上级节点建立无线回传链路,并通过该一个或多个上级节点接入宿主基站。同样,一个IAB节点还可以为一个或多个下级节点提供服务。宿主基站可以与IAB节点1通信,也可以直接与用户设备UE1通信;类似地,IAB节点1可以与IAB节点2通信,也可以与用户设备UE2通信等。
应理解,上述通信系统和网络架构仅是示例性说明,为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定。例如,通信系统还可以包括核心网设备。核心网设备可以与多个接入网设备连接,用于控制接入网设备,并且,将从网络侧(例如,互联网)接收到的数据分发至接入网设备。
图2是适用本申请的网络架构的另一例示意图,如图2所示,宿主基站从功能、逻辑上可以进一步划分为CU与DU;IAB节点内部从功能、逻辑上可以进一步划分为移动终端(mobile-termination,MT)模块和分布式单元(distributed unit,DU)模块。
MT功能被定义为类似UE的一个组件。在IAB中,MT被称为驻留在IAB节点上的功能。MT类似一个普通UE的功能,IAB节点可以通过MT接入到上级节点或网络。
DU功能是相对于CU功能而言的。在5G NR中,基站功能被分为两部分,称为CU-DU分离。从协议栈角度,CU包括了原LTE基站的无线资源控制(radio resource control,RRC)层和分组数据汇聚层协议(packet data convergence protocol,PDCP)层。DU包括了无线链路控制(radio link control,RLC)层、媒体接入控制(media access control,MAC)层和物理(physical,PHY)层。在普通5G基站部署中,CU与DU可以通过光纤连接,逻辑上存在一个专门定义的F1接口,用于CU与DU之间进行通信。从功能的角度,CU主要负责处理非实时协议和服务,如无线资源控制与配置、跨小区移动性管理以及承载管理等;DU主要负责处理物理层协议和实时服务,如调度,物理信号生成与发送。这些协议 层的功能可以由一个节点实现,或者可以由多个节点实现,例如,在一种演进结构中,RAN设备可以包括集中单元CU和分布单元DU,多个DU可以由一个CU集中控制。
示例性地,CU与DU之间进行下行传输,CU生成的F1-AP数据包被封装成IP包,在空口多跳节点(例如,IAB节点1和IAB节点2)之间传递。数据包到达目标IAB节点后,在目标IAB的MT模块适配层处理后,将数据包转给本地IAB的DU模块进行处理,最终在DU解析到F1-AP数据包。
在以上网络架构中,CU产生的信令可以通过DU发送给终端设备,或者终端设备产生的信令可以通过DU发送给CU。DU可以不对该信令进行解析而直接通过协议层封装而透传给终端设备或CU。
为了描述方便,下面对本申请实施例可能涉及的术语进行说明。
1、上级节点:在上行传输时,接收数据或信号的节点,或者下行传输时发送数据或信号的节点。示例性地,可以将提供无线回传链路资源的节点、网络设备,可以称为中继设备的上级点。
2、下级节点:在上行传输时,发送数据或信号的节点,或者下行传输时接收数据或信号的节点;示例性地,可以将使用回传链路资源向网络进行数据传输,或者接收来自网络的数据的节点可以称为下级节点。例如,中继设备称为网络设备的下级节点,网络为核心网或者其他接入网之上的网络,如因特网,专网等。
3、接入链路:接入链路是指某个节点和它的下级节点进行通信时所使用的无线链路,包括上行传输和下行传输的链路。接入链路上的上行传输也被称为接入链路的上行传输,下行传输也被称为接入链路的下行传输。其中的节点包括但不限于前述IAB节点。
4、回传链路:回传链路是指某个节点和它的上级节点和/或下级节点进行通信时所使用的无线链路,包括上行传输和下行传输的链路。回传链路上的上行传输也被称为回传链路的上行传输,下行传输也被称为回传链路的下行传输。其中的节点包括但不限于前述IAB节点。
5、空分复用(spatial duplex multiplexing,SDM):空分复用可以理解为让同一频段在不同的空间内得到重复利用,利用多路空间上的正交信道来同时传输信号达到扩容的目的。简单来说。就是同时从多个方向接收信号,为了提高频谱效率,空分复用场景被广泛应用。
9、时分复用(time division multiplexing,TDM):时分复用可以理解为采用统一物理连接的不同时段来传输不同的信号,达到多路传输的目的。时分多路复用以时间作为信号分割的参量,故必须使各路信号在时间轴上互不重叠。换句话说,就是将提供给整个信道传输信息的时间划分为若干时隙,将这些时隙分配给每一信号源使用。
10、频分复用(frequency division multiplexing,FDM):频分复用可以理解为将用于传输信道的总带宽划分为若干个子频带(子信道),每个子信道传输一路信号,各子信道之间设立保护带进行隔离,使得传输的信号互不干扰,个子信道传输的信号以并行的方式工作。
在通信过程中,IAB节点的回传链路与接入链路的空口资源需要由宿主基站或者上级节点进行配置。IAB节点的资源配置可以包括MT资源配置和DU资源配置。其中,MT资源配置用于指示IAB节点的MT与上级节点进行通信时的资源;DU资源配置用于指示IAB节点的DU与下级节点进行通信时的资源。
Rel-16仅支持IAB MT和DU时分复用的工作,即回传链路(对应MT)与接入链路(对应DU)在不同的时刻工作,因此IAB节点需要在回传链路的收发与接入链路的收发之间切换。为此,可配置MT资源和DU资源。
其中,MT资源配置与NR协议中的普通UE资源配置类似,即基站可以为MT配置每个时隙上的传输方向。该配置可以是一种周期性配置。具体的一个时隙以及时隙中的多个符号可被配置为下行(downlink,D),上行(uplink,U),灵活(Flexible,F)三种类型。
DU资源配置用于指示IAB节点的DU与下级节点进行通信时的资源配置,IAB节点的DU资源可被配置为上行、下行、灵活三种类型。不同于MT的传输方向用于回传链路,DU传输方向配置针对的是接入到DU的UE。进一步地,DU资源的上行资源,下行资源和灵活资源还可分为hard(H)和soft(S)两类。其中,DU hard资源表示DU始终可用的资源;DU soft资源表示DU是否可用该资源,依赖于上级节点的指示。DU还有一种不可用(NA,Not Available)资源类型,表示DU始终不可使用该资源。以图2为例,如果DU配置为H,由于时分复用的限制,MT不期望收到调度(或MT的收发不影响DU工作)。若DU配置为NA的时隙,则DU不工作,MT可正常收发信号。若DU配置为S, 则需要上级节点进一步指示该时隙的资源DU否可用。
其中,下行表示资源用于下行传输,上行表示资源用于上行传输,灵活表示资源的传输方向依赖于上级节点的进一步指示。
下面首先将协议中与本申请实施例相关的技术方案进行说明。
图3是当前协议Rel-16支持的DU时域资源配置下的资源利用的一例示意图,如图3所示,横纵坐标分别表示时域资源和频域资源。Rel对于整个小区,也就是小区全局标识(cell global ID,CGI)1,分别配置时域H、S、S、NA资源。
需要说明的是,时域的hard(H)资源为DU一定可用的资源,MT一般不会使用该时域资源进行通信;时域的not available(NA)资源为DU不可用的资源,MT可以使用该时域资源进行通信;时域的soft(S)资源为DU是否可用主要依赖于上级节点的进一步指示的资源。
示例性地,横坐标可以看作是该小区四个不同的时域资源的配置情况,即DU cell的第一时域资源是一定可用的,第二、三时域资源是否可用依赖于上级节点的指示,第四时隙资源是不可用的。应理解,MT只有上行/下行传输方向的配置,没有配置H/S/NA资源。因为上级节点知道下级节点的资源配置情况,所以为了避免MT与DU冲突,上级节点就不在第一时域资源对MT进行调度,上级节点DU向下级节点发送下行控制信息(downlink control information,DCI)信令,来进一步指示DU在第二、三时域资源是否可用,针对第四时域资源,MT可以根据传输需求选择调度或者不调度。
图4是当前协议Rel-17支持的DU频域资源配置下的资源利用的一例示意图,如图4所示,横纵坐标分别表示时域资源和频域资源。该方案是先在频域上把原来的整个小区带宽分为多份,带宽大小可以不同,也就是将频域资源分割(例如,资源块组1和资源块组2),细化成频域资源块组RBG的粒度;再在每份更小的频域粒度上分别配置时域H/S/NA。
示例性地,横坐标可以看作是该小区四个不同的时隙资源的配置情况,对于资源块组1来说,第一时域资源是一定可用的,第二、三时域资源是否可用依赖于上级节点的指示,第四时域资源是不可用的;对于资源块组2来说,第一、二时域资源是一定可用的,第三时域资源是否可用依赖于上级节点的指示,第四时域资源是不可用的。
根据MT资源配置和DU资源配置可确定IAB节点的资源配置。例如,可以通过F1-AP接口信令在CU与DU之间进行传递DU的资源类型以及相应的传输方向。如在3GPP TS 38.473 9.2.9.3中定义的“GNB-DU RESOURCE CONFIGURATION”,其中包括“gNB-DU Cell Resource Configuratio”实现了对DU资源的具体配置。其中,“gNB-DU Cell Resource Configuratio”中的“DUF Slot Configuratio ltem”用于配置DU的传输方向,包括上行,下行和灵活。“gNB-DU Cell Resource Configuratio”中的“HSNA Slot Configuratio list”相关配置用于配置DU资源的属性(H,S,NA)。
进一步地,上级节点可通过发送携带指示信息的下行控制信息确定IAB-DU上soft资源的可用性。该下行控制信息可以为DCI 2_5。当一个下行、上行或灵活的符号被配置为hard时,DU可以分别在符号中发送或接收,要么发送或接收。当一个下行、上行或灵活的符号被配置为soft时,DU在收到上级节点指示资源可用时,可以在相应的符号中发送或接收。
协议支持对动态指示相关的配置信息如下:

其中,DCI 2_5指示availabilityCombinationsPerCellIndex,iab-DU-CellIdentity表示目标小区ID、positionInDCI-AI-r16表示该指示信息位于DCI 2_5中的位置。AvailabilityCombinations包括1个或多个时隙的资源可用性指示,对于每个时隙的可用性指示,用3比特信息进行指示。该3比特信息的含义可以由协议预定义。
也就是说,上级IAB节点通过在DCI中指示一个ID,下级IAB节点就能通过预配置信息,得到所述ID对应的AvailabilityCombinations,AvailabilityCombinations包括由多个取值(即上表的value)组成的序列,该序列对应多个时隙的资源可用性。
当前协议Rel-17支持的IAB DU资源配置进一步支持频域资源的配置。该方案是先在频域上把原来的整个小区带宽分为多份,该多份频域资源的带宽大小可以不同。或者说,在Rel-17支持的IAB DU资源配置下,可以将小区的频域资源分割为多个资源块组(例如,资源块组1和资源块组2),即将小区频域资源细化成资源块集合RB set的粒度;再在每份更小的频域粒度上分别配置时域H/S/NA。协议允许对部分时隙进行频分资源配置,并且Rel-16已有的资源配置仍存在。
在Rel-17资源配置的方案中,也相应的引入了对DU频域S资源是否可用的指示。具体动态指示相关的配置信息如下:
与Rel-16的动态指示相关的配置信息相比,Rel-17支持对多个RB-SetGroup分别指示availabilityCombinations。
综上,在IAB网络中,IAB节点的资源配置可以包括时域资源的可用性配置以及频域资源的可用性配置中至少一种,同时,IAB节点可能接收到针对时隙资源的可用性指示以及频域资源可用性指示中的至少一种。在这种情况下,如何灵活地指示IAB节点的资源可用性是需要解决的问题。
下文将结合附图详细说明本申请实施例提供的通信方法。本申请提供的通信方法可以应用于上述图1所示的网络架构中,不作限定。
为了便于理解本申请实施例,作出以下几点说明:
(1)在本申请的各个实施例中,如果没有特殊说明以及逻辑冲突,不同的实施例之间的术语和/或描述具有一致性、且可以相互引用,不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
(2)在本申请中,“第一”、“第二”仅为描述方便,用于区分的对象,并不用于限制本申请实施例的范围。而不是用于描述特征的顺序或者先后次序。应理解这样描述的对象在适当情况下可以互换, 以便能够描述本申请实施例以外的方案。
(3)本申请实施例中提及的时间单元可以为时隙(slot),或者符号,或者子帧,或者帧,或者迷你子帧,或者迷你时隙。本申请实施例中提及的时域资源可以是时间单元;频域资源可以是资源块集合(RB set)、资源块集合组(RB set group,RBG)、部分带宽BWP等,本申请不作具体限定。
(4)本申请中实施例中所涉及的指示信息、配置信息等承载方式可以是但不限于:无线资源控制信令、媒体接入控制MAC层信令和物理层PHY信令中的一种或者至少两种的组合。其中,无线资源控制信令包括:无线资源控制RRC信令;MAC层信令包括:MAC控制元素(control element,CE);物理层信令包括:下行控制信息(downlink control information,DCI)等。
(5)在本申请实施例中,S资源是否可用在被进一步指示后,可以被确定为“可用”或“不可用”,或者可以被确定为“可用”“指示可用”或“不指示可用(no indication of availablity)”。其中,是否可用的指示可以针对上行、下行、灵活三种TDD传输方向配置中的一种或多种进行配置。例如,通过信令指示S的上行资源指示可用,下行和灵活资源不指示可用等。需要说明的是,“不指示可用”不同于不可用,即没有限制IAB节点(具体可以为IAB节点的DU)在该资源上不可用。
图5示出了本申请实施例提供的一种通信方法500的示意图。方法500可以包括如下步骤。
S510,第二节点向第一节点发送指示信息;
相应地,该第一节点接收来自该第二节点的该指示信息。
其中,该第一节点配置有资源配置信息,该资源配置信息可以包括第一配置信息和第二配置信息中的至少一种。该第一配置信息用于配置至少一种资源在时域上的分布。该第二配置信息用于配置该至少一种资源在频域上的分布。
或者说,该第一配置信息用于配置该第一节点的时域资源的资源类型;该第二配置信息用于配置该第一节点频域资源的资源类型。
该至少一种资源包括以下资源中的至少一种:可用的资源,不可用的资源,是否可用由该第一节点的上级节点指示的资源(为了方便描述,记为第一资源)。即资源的资源类型包括以上三种类型。
具体地,该第一配置信息可以用于配置第一集合中各时间单元的资源类型。该第二配置信息用于配置至少一个频域资源组的资源类型,该至少一个频域资源组在时域上对应第二时间单元,该第二时间单元包括该第一集合中的部分或全部时间单元。该资源类型包括一定可用资源,不可用资源以及该第二资源。
其中,频域资源组在时域上对应的时间单元可以理解为,在该时间单元的频域上划分了至少一个频域资源组,该至少一个频域资源组与该时间单元对应。
该第一指示信息可以用于指示该第一集合中第一时间单元的资源可用性,该第一时间单元为配置了该第二资源的时间单元;该第二指示信息用于指示第一频域资源组的资源可用性,该第一频域资源组为该至少一个频域资源组中配置了该第二资源的频域资源组。
该第二节点为该第一节点的上级一体化接入回传IAB节点,该第三节点为该第一节点的下级IAB节点或者该第一节点所服务的终端设备。
S520,第一节点根据资源配置信息以及该指示信息确定第一资源。
该第一资源可以是用于该第一节点与第二节点和/或第三节点通信的资源。
根据该第一节点配置的配置信息以及接收的指示信息的不同,该第一节点根据该配置信息确定该第一资源可以包括多种情况:
情况一,该第一节点配置了第一配置信息和第二配置信息。
在该情况下,根据该第一节点接收指示信息的不同,该第一节点确定该第一资源可以包括以下几个示例。
示例#1,该指示信息包括该第一指示信息。
该指示信息包括该第一指示信息可以理解为,该第二节点向该第一节点发送了该第一指示信息,没有发该第二指示信息。
若该第一配置信息配置时间单元#1的资源类型为H资源或NA资源,且该时间单元#1上配置了对应的该第二配置信息,则该第一节点确定该第一资源包括该第二配置信息配置的可用资源。该第二配置信息配置的可用资源包括该第二配置信息配置的H资源。
也就是说,第一节点有第一配置信息和第二配置信息,且接收到该第一指示信息,该第一节点在该时间单元#1上通过第二配置信息配置的可用资源与该第二节点和/或该第三节点通信。
该时间单元#1上配置了对应的该第二配置信息可以理解为,在该时间单元#1的频域资源上划分了至少一个频域资源组。该第一集合中的时间单元包括该时间单元#1。
示例#2,该指示信息包括该第一指示信息,且该第一指示信息不指示可用。
其中,该第一指示信息不指示可用可以理解为,该第一指示信息指示该第一集合中的第二资源的资源可用性,且该第一指示信息不指示该第二资源可用。
在该示例中,该第一节点确定该第一资源包括第二配置信息配置的可用资源。以时间单元#2为例,该时间单元#2上配置有第一配置信息和第二配置信息,该第一指示信息不指示该时间单元#2可用,则该第一节点确定在该时间单元#2上通过第二配置信息配置的可用资源与该第二节点和/或该第三节点通信。
示例#3,该第一节点未接收到该第一指示信息。
该第一节点未接收到该第一指示信息可以理解是,该第二节点向该第一节点发送了该第一指示信息,该第一节点还未收到该第一指示信息。
在该示例中,该第一节点可以通过配置了该第二配置信息的时间单元对应的频域资源#1与该第二节点和/或该第三节点通信。该频域资源#1包括该第二配置信息配置的至少一个频域资源组中配置了可用资源的频域资源组。
示例#4,该指示信息包括该第一指示信息,且该第一指示信息指示该第一时间单元中的部分符号可用,其他符号不指示可用。
对于该第一指示信息不指示可用的符号,该第一节点可以通过该第二配置信息确定,该不指示可用的符号对应的频域资源组的资源可用性,例如,该不指示可用的符号对应的频域资源包括指示包括配置为H的频域资源组,则该第一节点确定该不指示可用的符号可用。
在该示例中,该第一节点可以通过该第一指示信息指示可用的符号,以及该第一指示信息不指示可用的符号中,对应的频域资源组配置为可用的符号与该第二节点和/或该第三节点通信。
示例#5,该指示信息包括第一指示信息和第二指示信息。
一种可能的实现方式中,该第一节点根据该第二指示信息确定该第一频域资源组的资源可用性;该第一资源包括该第二配置信息配置为可用的频域资源组,以及该第一频域资源组中指示为可用的频域资源组。
或者,若该第一指示信息指示该第一集合中该第一时间单元可用,则该第一资源包括该第一配置信息配置为可用的时间单元以及该第一指示信息指示为可用的时间单元。
或者,若该第一指示信息不指示该第一时间单元可用,则该第一资源包括该第二配置信息配置为可用的资源。
或者,对于该第一指示信息不指示可用的符号,该第一节点可以通过该第二配置信息确定,该不指示可用的符号对应的频域资源组的资源可用性,例如,该不指示可用的符号对应的频域资源包括指示包括配置为H的频域资源组,则该第一节点确定该不指示可用的符号可用。
在该示例中,该第一节点可以通过该第一指示信息指示可用的符号,以及该第一指示信息不指示可用的符号中,对应的频域资源组配置为可用的符号与该第二节点和/或该第三节点通信。
情况二,该第一节点配置了第一配置信息。
该情况二可以理解为,该第一节点配置了该第一配置信息,且该第一节点未配置该第二配置信息。即该第一节点只配置了时域资源的资源类型,且该时域资源对应的频域资源上未配置资源类型。
示例性#1,该指示信息包括该第二指示信息。
该示例可以理解为,该第一节点仅配置了第一集合中各时间单元的资源类型,且该第一节点接收到来自第二节点的第二指示信息,该第二指示信息指示至少一个频域资源组(例如,该第一频域资源组)的资源可用性。
在该示例中,该第一节点根据该第一频域资源组中一个或多个频域资源组的资源可用性,确定该第一时间单元的资源可用性。
一种可能的实现方式中,该第一节点根据该第一频域资源组中的第一个频域资源组的资源可用性 确定该第一时间单元的资源可用性。具体地,若该第一节点确定该第一频域资源组中的该第一个频域资源组被指示为可用,则该第一时间单元被指示为可用。
另一种可能的实现方式中,该第一节点根据该第一频域资源组中的每一个频域资源组的资源可用性确定该第一时间单元的资源可用性。该第一节点根据该第一频域资源组中的每一个频域资源组的资源可用性确定该第一时间单元的资源可用性,可以理解为,该第一节点根据该第一频域资源组中的全部频域资源组的资源可用性确定该第一时间单元的资源可用性。
具体地,若该第一节点确定该第一频域资源组中的每个频域资源组被指示为可用,则该第一时间单元被指示为可用。或者,若该第一节点确定该第一频域资源组中的任一个频域资源组被指示为可用,则该第一时间单元被指示为可用。
进一步地,该第一频域资源组中每个频域资源组的资源可用性对应至少一种符号的资源可用性,该第一节点根据该第一频域资源组中每个频域资源组的资源可用性,确定该第一时隙的资源可用性,包括:若该第一频域资源组中的每个频域资源组对应的第一符号被指示可用,则该第一时隙的第一符号可用;或者,若该第一频域资源组中的任一个频域资源组对应的第一符号被指示可用,则该第一时隙的第一符号可用。
需要说明的是,由于一个时间单元中含有多个符号,每个符号可以用于上行或下行,第二节点对该第一时间单元的资源可用性的指示也是逐时间单元进行的。第二节点可以为第一节点的一个时间单元定义如表1中所示的8种可用状态中的一个或多个。每种情况可以基于3个比特进行指示,用于指示一个时间单元内所有或部分传输方向的符号可用,或者不指示可用(no indication of availablity)。
需要说明的是,不指示可用不同于不可用,这里没有限制第一节点在该资源上不可用,协议的要求是该第一节点(例如第一节点的DU)在该资源上的传输或不传输,不影响共站的MT使用该资源。
表1
S530,第一节点通过该第一资源与第二节点和/或第三节点通信。
上文结合图5,详细描述了本申请实施例提供的资源配置的方法侧实施例,下面将结合图6和图7,详细描述本申请的装置侧实施例。应理解,方法实施例的描述与装置实施例的描述相互对应,因此,未详细描述的部分可以参见前面方法实施例。
根据前述方法,图6是适用于本申请实施例的通信装置10的示意图。如图6所示,该通信装置10包括:收发单元11和处理单元12。
应理解,通信装置10可以对应于根据本申请实施例的方法500中的第一节点,该通信装置10可以包括用于执行第一节点执行的方法的模块(或单元)。并且,该通信装置10中的各模块(或单元)和上述其他操作和/或功能为了实现方法500的相应流程。
应理解,图6示例的装置10的结构仅为一种可能的形态,而不应对本申请实施例构成任何限定。 本申请并不排除未来可能出现的其他形态的网络设备的可能。
应理解,根据本申请实施例的通信装置可对应于前述方法实施例的第一节点,并且通信装置10中的各个模块(或单元)的上述和其它管理操作和/或功能分别为了实现前述各个方法的相应步骤,因此也可以实现前述方法实施例中的有益效果。
还应理解,本申请实施例中的处理模块(或单元)可以由处理器实现,收发模块(或单元)可以由收发器实现。
根据前述方法,图7为本申请实施例提供的通信装置(也可以称为中继设备或终端设备)40的示意图,如图7所示,该装置40可以为第一节点,或者是可用于第一节点的部件,又或者是终端设备(例如,UE),也可以为芯片或电路,比如可设置于中继设备或终端设备的芯片或电路。
该装置40可以包括处理器41(即,处理单元的一例)和存储器42。该存储器42用于存储指令,该处理器41用于执行该存储器42存储的指令,以使该装置40实现上述方法(例如,方法500)中第一节点(例如,第一IAB节点)执行的步骤。
可选地,该装置40还可以包括输入口43(即,通信单元的一例)和输出口44(即,通信单元的另一例)。应理解,该处理器41、存储器42、输入口43和输出口44可以通过内部连接通路互相通信,传递控制和/或数据信号。
该存储器42用于存储计算机程序,该处理器41可以用于从该存储器42中调用并运行该计算计程序,以控制输入口43接收信号,控制输出口44发送信号,完成上述方法中网络设备的步骤。
该存储器42可以集成在处理器41中,也可以与处理器41分开设置。
可选地,若该装置40为中继设备或终端设备,该输入口43为接收器,该输出口44为发送器。其中,接收器和发送器可以为相同或者不同的物理实体。为相同的物理实体时,可以统称为收发器。
可选地,若该装置40为芯片或电路,该输入口43为输入接口,该输出口44为输出接口。
作为一种实现方式,输入口43和输出口44的功能可以考虑通过收发电路或者收发的专用芯片实现。处理器41可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。
作为另一种实现方式,可以考虑使用通用计算机的方式来实现本申请实施例提供的第一节点(例如,第一IAB节点)。即将实现处理器41、输入口43和输出口44功能的程序代码存储在存储器42中,通用处理器通过执行存储器42中的代码来实现处理器41、输入口43和输出口44的功能。
在本申请实施例中,该输入口43用于接收第一信息,该第一信息包括第一图案的指示信息,该第一图案是多个图案中的一个,该多个图案中的每个图案用于指示至少一种资源在频域上的分布,该至少一种资源包括以下资源中的至少一种:第一资源、第二资源、第三资源,该第一资源是一定可用的资源,该第二资源是不可用的资源,该第三资源是否可用由第一指示信息确定,该第一指示信息是第一网络设备发送的,其中,任意两个图案所指示的资源分布不同;
该处理器41用于根据该第一图案确定与第二网络设备和/或终端设备进行通信的资源。
可选地,该处理器41还用于在第一时域资源,根据该第一图案确定与该第二网络设备和/或该终端设备进行通信的资源。
可选地,该输入口43还用于接收第二信息,该第二信息用于指示该第一时域资源
可选地,该装置40配置在或本身即为中继设备,第一节点(例如,第一IAB节点),或者是终端设备(例如,UE)。
其中,以上列举的装置40中各模块或单元的功能和动作仅为示例性说明,装置40中各模块或单元可以用于执行上述方法500中第一节点(例如,第一IAB节点)所执行的各动作或处理过程,这里,为了避免赘述,省略其详细说明。
该装置40所涉及的与本申请实施例提供的技术方案相关的概念,解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述,此处不做赘述。
在一种可能的实施方式中,随着片上系统(System-on-chip,SoC)技术的发展,装置40的全部或者部分功能由SoC技术实现,例如由一终端设备功能芯片实现,该终端设备功能芯片集成了处理器、存储器、通信接口等器件,终端设备相关功能的程序存储在存储器中,由处理器执行程序以实现用户设备的相关功能。可选地,该终端设备功能芯片也能够读取该芯片外部的存储器以实现用户设备的相关功能。
应理解,图7示例的装置40的结构仅为一种可能的形态,而不应对本申请实施例构成任何限定。本申请并不排除未来可能出现的其他形态的用户设备结构的可能。
应理解,本申请实施例中,该处理器可以为中央处理单元(central processing unit,CPU),该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM,EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DR RAM)。
上述实施例,可以全部或部分地通过软件、硬件、固件或其他任意组合来实现。当使用软件实现时,上述实施例可以全部或部分地以计算机程序产品的形式实现。该计算机程序产品包括一个或多个计算机指令或计算机程序。在计算机上加载或执行该计算机指令或计算机程序时,全部或部分地产生按照本申请实施例该的流程或功能。该计算机可以为通用计算机、专用计算机、计算机网络、或者其他可编程装置。该计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,该计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集合的服务器、数据中心等数据存储设备。该可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质。半导体介质可以是固态硬盘。
应理解,本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本申请实施例的实施过程构成任何限定。
还应理解,本文提及的“第一”和“第二”等等仅仅是为了更清楚地表述本申请的技术方案而加以区分,不应对本申请构成任何限定。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如,部件可以是但不限于,在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示,在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中,部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外,这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据,例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的 具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。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或者该技术方案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中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (31)

  1. 一种通信方法,其特征在于,包括:
    第一节点接收来自第二节点的第二指示信息,所述第一节点配置了第一配置信息,所述第一配置信息用于配置第一集合中各时隙的资源类型,所述第一集合包括第一时隙,所述第一时隙为配置了第一资源的时隙,所述第二指示信息指示至少一个频域资源组的资源可用性;
    所述第一节点根据所述第一频域资源组中一个或多个频域资源组的资源可用性,确定所述第一时隙的资源可用性;
    所述第一节点通过所述第一时隙中被指示为可用的时隙与第三节点通信;
    其中,所述第二节点为所述第一节点的上级一体化接入回传IAB节点,所述第三节点为所述第一节点的下级IAB节点或者所述第一节点所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  2. 根据权利要求1所述的方法,其特征在于,所述第一节点根据所述第一频域资源组中一个或多个频域资源组的资源可用性,确定所述第一时隙的资源可用性,包括:
    所述第一节点根据所述第一频域资源组中的第一个频域资源组的资源可用性,确定所述第一时隙的资源可用性;或者,
    所述第一节点根据所述第一频域资源组中的每个频域资源组的资源可用性,确定所述第一时隙的资源可用性。
  3. 根据权利要求2所述的方法,其特征在于,所述第一节点根据所述第一频域资源组中的第一个频域资源组的资源可用性,确定所述第一时隙的资源可用性,包括:
    若所述第一频域资源组中每个频域资源组被指示可用,则所述第一时隙可用。
  4. 根据权利要求2所述的方法,其特征在于,所述第一节点根据所述第一频域资源组中的每个频域资源组的资源可用性,确定所述第一时隙的资源可用性,包括:
    若所述第一频域资源组中每个频域资源组被指示可用,则所述第一时隙可用;或者,
    若所述第一频域资源组中的任一个频域资源组被指示可用,则所述第一时隙可用。
  5. 根据权利要求2所述的方法,其特征在于,所述第一频域资源组中每个频域资源组的资源可用性对应至少一种符号的资源可用性,所述第一节点根据所述第一频域资源组中每个频域资源组的资源可用性,确定所述第一时隙的资源可用性,包括:
    若所述第一时隙的第一符号对应的至少一个频域资源组中的每个频域资源组被指示可用,则所述第一符号可用;或者,
    若所述第一时隙的第一符号对应的至少一个频域资源组中的任一个频域资源组被指示可用,则所述第一符号可用;
    其中,所述至少一种符号包括所述第一符号,所述第一符号为上行符号、下行符号或灵活符号。
  6. 一种通信方法,其特征在于,包括:
    第一节点接收来自第二节点的第一指示信息,所述第一指示信息指示第一集合中第一时隙的资源可用性,所述第一集合包括至少一个时隙,所述第一时隙为配置了第一资源的时隙,所述第一节点配置了第一配置信息和第二配置信息,所述第一配置信息配置所述第一集合中各时隙的资源类型,所述第二配置信息配置所述第一集合中每个时隙对应的至少一个频域资源组的资源类型;
    所述第一节点根据所述第一指示信息确定第二资源;
    所述第一节点通过所述第二资源与第三节点通信,所述第二节点为所述第一节点的上级一体化接入回传IAB节点,所述第三节点为所述第一节点的下级IAB节点或者所述第一节点所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  7. 根据权利要求6所述的方法,其特征在于,所述第一节点根据所述第一指示信息确定第二资源,包括:
    若所述第一指示信息不指示所述第一时隙可用,则所述第一节点确定所述第二资源包括所述第一 时隙单元对应的至少一个频域资源组中的可用资源。
  8. 根据权利要求6或7所述的方法,其特征在于,所述方法还包括:
    若所述第一集合中包括配置为可用资源的第二时隙,则所述第一节点确定所述第二资源包括所述第二时隙;和/或,
    若所述第一集合中包括配置为不可用的第三时隙,则所述第一节点确定所述第二资源包括所述第三时隙。
  9. 根据权利要求6所述的方法,其特征在于,所述第一节点根据所述第一指示信息确定第二资源,包括:
    若所述第一时隙中的第一符号被指示可用,且所述第一时隙中的第二符号不指示可用,则所述第一节点确定所述第二资源包括所述第一时隙对应的至少一个频域资源组中的可用资源;
    其中,所述第一符号与所述第二符号分别为上行符号、下行符号或灵活符号中的任一符号,所述第一符号与所述第二符号的符号类型不同。
  10. 一种通信方法,其特征在于,包括:
    第一节点接收来自第二节点的第一指示信息和第二指示信息,所述第一指示信息指示第一集合中第一时隙的资源可用性,所述第一集合包括至少一个时隙,所述第一时隙为配置了第一资源的时隙,所述第二指示信息指示第一频域资源组的资源可用性,所述第一频域资源组为配置了所述第一资源的频域资源组,所述第一节点配置了第一配置信息和第二配置信息,所述第一配置信息用于配置所述第一集合中各时隙的资源类型,所述第二配置信息配置所述第一集合中每个时隙对应的至少一个频域资源组的资源类型;
    所述第一节点根据所述第一指示信息和所述第二指示信息中的至少一个指示信息确定第二资源;
    所述第一节点通过所述第一资源与第三节点通信,所述第二节点为所述第一节点的上级一体化接入回传IAB节点,所述第三节点为所述第一节点的下级IAB节点或者所述第一节点所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  11. 根据权利要求10所述的方法,其特征在于,所述第一节点根据所述第一指示信息和所述第二指示信息中的至少一个指示信息确定第二资源,包括:
    所述第一节点根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
  12. 根据权利要求10或11所述的方法,其特征在于,所述第一节点根据所述第一指示信息和所述第二指示信息中的至少一个指示信息确定第二资源,包括:
    所述第一节点根据所述第一指示信息确定所述第二资源,所述第一指示信息指示所述第一时隙可用,所述第二资源包括所述第一时隙;或者,
    所述第一节点根据所述第一指示信息和所述第二指示信息确定所述第二资源。
  13. 根据权利要求12所述的方法,其特征在于,所述第一节点根据所述第一指示信息和所述第二指示信息确定所述第二资源,包括:
    所述第一节点根据所述第一指示信息确定所述第一时隙不指示可用;
    所述第一节点根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一时隙对应的至少一个频域资源组中的可用资源。
  14. 根据权利要求12所述的方法,其特征在于,所述第一节点根据所述第一指示信息和所述第二指示信息确定所述第二资源,包括:
    所述第一节点根据所述第一指示信息确定所述第一时隙中的第一符号可用,且所述第一时隙中的第二符号不被指示可用;
    所述第一节点根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一符号以及所述第二符号对应的至少一个频域资源组中的可用资源。
  15. 一种通信装置,其特征在于,包括收发单元和处理单元,
    所述收发单元用于,接收来自第二节点的第二指示信息,所述装置配置了第一配置信息,所述第一配置信息用于配置第一集合中各时隙的资源类型,所述第一集合包括第一时隙,所述第一时隙为配 置了第一资源的时隙,所述第二指示信息指示至少一个频域资源组的资源可用性;
    所述处理单元用于,根据所述第一频域资源组中一个或多个频域资源组的资源可用性,确定所述第一时隙的资源可用性;
    所述第一节点通过所述第一时隙中被指示为可用的时隙与第三节点通信;
    其中,所述第二节点为所述装置的上级一体化接入回传IAB节点,所述第三节点为所述装置的下级IAB节点或者所述装置所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  16. 根据权利要求15所述的通信装置,其特征在于,所述处理单元具体用于:
    根据所述第一频域资源组中的第一个频域资源组的资源可用性,确定所述第一时隙的资源可用性;或者,
    根据所述第一频域资源组中的每个频域资源组的资源可用性,确定所述第一时隙的资源可用性。
  17. 根据权利要求16所述的通信装置,其特征在于,所述处理单元具体用于:
    若所述第一频域资源组中每个频域资源组被指示可用,则确定所述第一时隙可用。
  18. 根据权利要求16所述的通信装置,其特征在于,所述处理单元具体用于:
    若所述第一频域资源组中每个频域资源组被指示可用,则确定所述第一时隙可用;或者,
    若所述第一频域资源组中的任一个频域资源组被指示可用,则确定所述第一时隙可用。
  19. 根据权利要求16所述的通信装置,其特征在于,所述第一频域资源组中每个频域资源组的资源可用性对应至少一种符号的资源可用性,所述处理单元具体用于:
    若所述第一时隙的第一符号对应的至少一个频域资源组中的每个频域资源组被指示可用,则确定所述第一符号可用;或者,
    若所述第一时隙的第一符号对应的至少一个频域资源组中的任一个频域资源组被指示可用,则确定所述第一符号可用;
    其中,所述至少一种符号包括所述第一符号,所述第一符号为上行符号、下行符号或灵活符号。
  20. 一种通信装置,其特征在于,包括收发单元和处理单元,
    所述收发单元用于,接收来自第二节点的第一指示信息,所述第一指示信息指示第一集合中第一时隙的资源可用性,所述第一集合包括至少一个时隙,所述第一时隙为配置了第一资源的时隙,所述装置配置了第一配置信息和第二配置信息,所述第一配置信息配置所述第一集合中各时隙的资源类型,所述第二配置信息配置所述第一集合中每个时隙对应的至少一个频域资源组的资源类型;
    所述处理单元用于根据所述第一指示信息确定第二资源;
    所述收发单元还用于通过所述第二资源与第三节点通信,所述第二节点为所述装置的上级一体化接入回传IAB节点,所述第三节点为所述装置的下级IAB节点或者所述装置所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  21. 根据权利要求20所述的通信装置,其特征在于,所述处理单元具体用于:
    若所述第一指示信息不指示所述第一时隙可用,则确定所述第二资源包括所述第一时隙单元对应的至少一个频域资源组中的可用资源。
  22. 根据权利要求20或21所述的通信装置,其特征在于,所述处理单元还用于:
    若所述第一集合中包括配置为可用资源的第二时隙,则确定所述第二资源包括所述第二时隙;和/或,
    若所述第一集合中包括配置为不可用的第三时隙,则确定所述第二资源包括所述第三时隙。
  23. 根据权利要求20所述的通信装置,其特征在于,所述处理单元具体用于:
    若所述第一时隙中的第一符号被指示可用,且所述第一时隙中的第二符号不指示可用,则确定所述第二资源包括所述第一时隙对应的至少一个频域资源组中的可用资源;
    其中,所述第一符号与所述第二符号分别为上行符号、下行符号或灵活符号中的任一符号,所述第一符号与所述第二符号的符号类型不同。
  24. 一种通信装置,其特征在于,包括收发单元和处理单元,
    所述收发单元用于,接收来自第二节点的第一指示信息和第二指示信息,所述第一指示信息指示第一集合中第一时隙的资源可用性,所述第一集合包括至少一个时隙,所述第一时隙为配置了第一资 源的时隙,所述第二指示信息指示第一频域资源组的资源可用性,所述第一频域资源组为配置了所述第一资源的频域资源组,所述第一装置配置了第一配置信息和第二配置信息,所述第一配置信息用于配置所述第一集合中各时隙的资源类型,所述第二配置信息配置所述第一集合中每个时隙对应的至少一个频域资源组的资源类型;
    所述处理单元用于,根据所述第一指示信息和所述第二指示信息中的至少一个指示信息确定第二资源;
    所述收发单元还用于通过所述第一资源与第三节点通信,所述第二节点为所述装置的上级一体化接入回传IAB节点,所述第三节点为所述第一节点的下级IAB节点或者所述装置所服务的终端设备,所述资源类型包括可用资源,不可用资源以及所述第一资源,所述第一资源是否可用由所述第二节点指示。
  25. 根据权利要求24所述的通信装置,其特征在于,所述处理单元具体用于:
    根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一集合中每个时隙对应的至少一个频域资源组中的可用资源。
  26. 根据权利要求24或25所述的通信装置,其特征在于,所述处理单元具体用于:
    根据所述第一指示信息确定所述第二资源,所述第一指示信息指示所述第一时隙可用,所述第二资源包括所述第一时隙;或者,
    根据所述第一指示信息和所述第二指示信息确定所述第二资源。
  27. 根据权利要求26所述的通信装置,其特征在于,所述处理单元具体用于:
    根据所述第一指示信息确定所述第一时隙不被指示可用;
    根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一时隙对应的至少一个频域资源组中的可用资源。
  28. 根据权利要求26所述的通信装置,其特征在于,所述处理单元具体用于:
    根据所述第一指示信息确定所述第一时隙中的第一符号可用,且所述第一时隙中的第二符号不被指示可用;
    根据所述第二指示信息确定所述第二资源,所述第二资源包括所述第一符号以及所述第二符号对应的至少一个频域资源组中的可用资源。
  29. 一种通信装置,其特征在于,包括:处理器,所述处理器与存储器耦合;所述处理器,用于执行所述存储器中存储的计算机程序,以使得所述装置执行如权利要求1至5中任一项所述的方法;或者,以使得所述装置执行如权利要求6至9中任一项所述的方法;或者,以使得所述装置执行如权利要求10至14中任一项所述的方法。
  30. 一种通信系统,其特征在于,包括:
    如权利要求15至19中任一项所述的装置;或者,如权利要求20至23中任一项所述的装置;或者,如权利要求24至28中任一项所述的装置。
  31. 一种计算机可读存储介质,其特征在于,包括:
    所述计算机可读存储介质上存储有计算机程序,当所述计算机程序运行时,
    使得所述计算机执行如权利要求1至5中任一项所述的方法;或者,以使得所述装置执行如权利要求6至9中任一项所述的方法;或者,以使得所述装置执行如权利要求10至14中任一项所述的方法。
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