WO2024065098A1 - 一种迁移的方法及装置 - Google Patents

一种迁移的方法及装置 Download PDF

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Publication number
WO2024065098A1
WO2024065098A1 PCT/CN2022/121409 CN2022121409W WO2024065098A1 WO 2024065098 A1 WO2024065098 A1 WO 2024065098A1 CN 2022121409 W CN2022121409 W CN 2022121409W WO 2024065098 A1 WO2024065098 A1 WO 2024065098A1
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Prior art keywords
iab
migration
donor
node
information
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PCT/CN2022/121409
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English (en)
French (fr)
Inventor
李艳华
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202280003724.4A priority Critical patent/CN118104202A/zh
Priority to PCT/CN2022/121409 priority patent/WO2024065098A1/zh
Publication of WO2024065098A1 publication Critical patent/WO2024065098A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a migration method and device.
  • IAB Integrated access and backhaul
  • NG next generation radio access network
  • NR new radio
  • IAB-donor The terminating node of the NR backhaul on the network side.
  • NGRAN supports IAB by wirelessly connecting the IAB-node to the IAB-donor that can serve the IAB-node.
  • IAB-node migration process needs to be performed. How to achieve multiple migrations of IAB-node is a problem that needs to be solved urgently.
  • the disclosed embodiments provide a migration method and apparatus. Before an IAB-node performs multiple continuous migrations, if it has performed at least one partial migration, its associated first migration information can be determined first, and then multiple continuous migrations of the IAB-node can be achieved based on the first migration information.
  • an embodiment of the present disclosure provides a migration method, which is performed by an IAB-donor, and the method includes: before performing migration of an integrated access and backhaul relay node IAB-node, determining information that the IAB-node has performed migration; in response to the IAB-node having performed at least one partial migration, obtaining first migration information associated with the IAB-node; and performing migration of the IAB-node according to the first migration information.
  • the IAB-donor before performing IAB-node migration, the IAB-donor first determines the information that the IAB-node has performed migration. If it is determined that the IAB-node has performed at least one partial migration, the first migration information associated with the IAB-node can be first obtained, and then the IAB-node can be migrated based on the first migration information. In this way, multiple continuous migrations of the IAB-node can be reliably achieved.
  • an embodiment of the present disclosure provides a migration method, which is executed by an IAB-node, and the method includes: before executing the migration, determining the information of the executed migration; in response to at least one partial migration having been executed, sending first migration information to the IAB-donor terminated by F1, so that the IAB-donor terminated by F1 executes the IAB-node migration according to the first migration information.
  • an embodiment of the present disclosure provides a migration method, which is executed by a source non-F1 integrated access and backhaul termination node IAB-donor, and the method includes: before executing the migration of the integrated access and backhaul relay node IAB-node, determining information that the IAB-node has executed migration; in response to the IAB-node having executed at least one partial migration, sending first migration information to a target IAB-donor, so that the target IAB-donor executes the IAB-node migration according to the first migration information.
  • an IAB-donor including:
  • a processing module used for determining information that the IAB-node has executed migration before executing the migration of the integrated access and backhaul relay node IAB-node;
  • transceiver module configured to obtain first migration information associated with the IAB-node in response to the IAB-node having performed at least one partial migration
  • the processing module is further configured to execute the IAB-node migration according to the first migration information.
  • an embodiment of the present disclosure provides an IAB-node, including:
  • a processing module used for determining information of executed migration before executing the migration
  • the transceiver module is used for sending first migration information to the IAB-donor where F1 is terminated in response to at least one partial migration being performed, so that the IAB-donor where F1 is terminated performs the IAB-node migration according to the first migration information.
  • the present disclosure provides a source non-F1 terminating IAB-donor, including:
  • a processing module used for determining information that the IAB-node has executed migration before executing the migration of the integrated access and backhaul relay node IAB-node;
  • the transceiver module is configured to send first migration information to a target IAB-donor in response to the IAB-node having performed at least one partial migration, so that the target IAB-donor performs the migration of the IAB-node according to the first migration information.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the method described in the first aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the method described in the second aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor.
  • the processor calls a computer program in a memory, the method described in the third aspect is executed.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and a memory, in which a computer program is stored; the processor executes the computer program stored in the memory so that the communication device executes the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the first aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication device, which includes a processor and an interface circuit, wherein the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to enable the device to execute the method described in the second aspect above.
  • an embodiment of the present disclosure provides a communication system, the system comprising the IAB-donor described in the fourth aspect, the IAB-node described in the fifth aspect, and the source non-F1 Terminating IAB-donor described in the sixth aspect, or the system comprises the communication device described in the seventh aspect, the communication device described in the eighth aspect, and the communication device described in the ninth aspect, or the system comprises the communication device described in the tenth aspect, the communication device described in the eleventh aspect, and the communication device described in the twelfth aspect, or the system comprises the communication device described in the thirteenth aspect, the communication device described in the fourteenth aspect, and the communication device described in the fifteenth aspect.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the first aspect.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the above-mentioned second aspect.
  • an embodiment of the present invention provides a computer-readable storage medium for storing instructions for the above-mentioned terminal device, and when the instructions are executed, the terminal device executes the method described in the above-mentioned second aspect.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the first aspect above.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.
  • the present disclosure further provides a computer program product comprising a computer program, which, when executed on a computer, enables the computer to execute the method described in the second aspect above.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a terminal device to implement the functions involved in the first aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip, or it can include a chip and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, for supporting a network device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, which is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip, or it can include a chip and other discrete devices.
  • the present disclosure provides a chip system, which includes at least one processor and an interface, and is used to support a network device to implement the functions involved in the second aspect, for example, determining or processing at least one of the data and information involved in the above method.
  • the chip system also includes a memory, and the memory is used to store computer programs and data necessary for the terminal device.
  • the chip system can be composed of a chip, or it can include a chip and other discrete devices.
  • the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the first aspect.
  • the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect.
  • the present disclosure provides a computer program which, when executed on a computer, enables the computer to execute the method described in the second aspect.
  • FIG1 is a schematic diagram of a backhaul link after an IAB-node performs a partial migration
  • FIG2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • FIG3 is a schematic diagram of a process in which a UE performs two consecutive migrations provided by an embodiment of the present disclosure
  • FIG4 is a schematic diagram of a migration method according to an embodiment of the present disclosure.
  • FIG5 is a flow chart of another migration method provided by an embodiment of the present disclosure.
  • FIG. 6 is a flow chart of another migration method provided by an embodiment of the present disclosure.
  • FIG7 is a flow chart of another migration method provided by an embodiment of the present disclosure.
  • FIG8 is a flow chart of another migration method provided by an embodiment of the present disclosure.
  • FIG9 is an interactive schematic diagram of a migration method provided by an embodiment of the present disclosure.
  • FIG10 is an interactive schematic diagram of another migration method provided by an embodiment of the present disclosure.
  • FIG11 is a schematic diagram of the structure of a communication device provided in an embodiment of the present disclosure.
  • FIG12 is a schematic diagram of the structure of another communication device provided in an embodiment of the present disclosure.
  • FIG. 13 is a schematic diagram of the structure of a chip provided in an embodiment of the present disclosure.
  • the relay node of IAB supports wireless access and backhaul through NR. It connects to the upstream IAB-node or IAB-donor distributed unit (Distributed Unit, DU) through the terminal function subset of the NR Uu interface (called the IAB mobile terminal (Mobile Termination, MT) function in the IAB-node).
  • the IAB-node provides wireless backhaul to the downstream IAB-node and user equipment (user equipment, UE) through the network function of the NR Uu interface (called the IAB-DU function of the IAB-node).
  • an IAB-done can be regarded as consisting of an IAB-MT and at least one IAB-DU.
  • IAB-donor The terminating node of NR backhaul on the network side is called IAB-donor, which is a network device with IAB function attached.
  • IAB-donor includes an IAB-donor central unit (CU) and one or more IAB-donor DUs.
  • the control plane (F1C) traffic of the FI interface between the IAB-node and the IAB-donor-CU is backhauled through the IAB-donorDU and the optional intermediate hop IAB-node.
  • the user plane (F1U) traffic of the F1 interface between the IAB-node and the IAB-donor-CU is backhauled through the IAB-donorDU and the optional intermediate hop IAB-node.
  • the migration process includes two types: partial migration and full migration.
  • Partial migration means that only the IAB MT on the IAB-node migrates (also called switching) to a new IAB-donor, while the IAB DU on the IAB-node remains connected to the original IAB-donor, that is, the UE context on the IAB DU is also stored on the original IAB-donor.
  • Full migration means that the IAB MT on the IAB-node migrates (also called switching) to a new IAB-donor, and the IAB DU on the IAB-node also migrates (also called switching) to a new IAB-donor.
  • the terminal equipment (hereinafter referred to as UE) connected to the IAB-donor through the IAB-node will also be connected to the new IAB-donor. Therefore, full migration can also be called UE migration.
  • FIG. 1 is a schematic diagram of the backhaul link after the IAB-node performs a partial migration.
  • IAB-donor-CU1 is the donor that originally served the IAB-node (IAB-MT and IAB-DU1 in Figure 1).
  • IAB-donor-CU1 can be called the F1-terminating (terminating) IAB-donor.
  • the UE data will be transmitted between the F1 connection and IAB-donor-CU1 (only the data routing will pass through IAB-donor DU2), that is, the UE context is saved on the F1-terminating IAB-donor.
  • the IAB MT has switched to IAB-donor-CU2, and the data of IAB MT is transmitted through IAB-donor-CU2.
  • IAB-donor-CU2 is called non-F1 terminating IAB-donor.
  • the F1 terminating IAB-donor in the present disclosure may be called differently in different migration scenarios.
  • it may also be called the source IAB-donor, anchor IAB-donor, or master IAB-donor.
  • the non-F1 terminating IAB-donor is the donor that the IAB-MT connects to after the partial migration of the IAB-node.
  • the source non-F1 terminating IAB-donor is the donor that the IAB-MT connects to when the IAB-node performs a new partial migration or a full migration.
  • the target IAB-donor i.e., the target IAB-donor that the IAB-MT switches to during the migration process
  • the present disclosure aims to explain how to implement re-migration of an IAB-node after a partial migration.
  • first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information
  • second information may also be referred to as the first information.
  • the term "in response to” as used herein may be interpreted as “at the time of” or “when” or “if”.
  • the terms used herein when characterizing the size relationship are “greater than” or “less than”, “higher than” or “lower than”.
  • FIG 2 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present disclosure.
  • the communication system may include but is not limited to an IAB-donor, an IAB-node and a UE.
  • the number and form of devices shown in Figure 2 are only used for example and do not constitute a limitation on the embodiment of the present disclosure. In actual applications, two or more IAB-donors and two or more IAB-donors may be included.
  • the communication system shown in Figure 2 includes three IAB-donors 11, IAB-donor 12, IAB-donor 13, an IAB-node 14 and a terminal device 15.
  • LTE long term evolution
  • 5G fifth generation
  • NR 5G new radio
  • the IAB-donor in the embodiment of the present disclosure is an entity on the network side that is attached with the IAB function and is used to transmit or receive signals.
  • the IAB-donor may be an evolved NodeB (eNB) with an IAB function, a transmission point (TRP) with an IAB function, a next generation NodeB (gNB) with an IAB function in the NR system, a base station with an IAB function in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system.
  • eNB evolved NodeB
  • TRP transmission point
  • gNB next generation NodeB
  • WiFi wireless fidelity
  • the embodiment of the present disclosure does not limit the specific technology and specific device form adopted by the IAB-donor.
  • the IAB-donor provided in the embodiment of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit.
  • the CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, and the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
  • the IAB-node in the disclosed embodiment is a relay node that provides wireless backhaul for downstream IAB-nodes and user equipment (UE).
  • UE user equipment
  • the terminal device 15 in the embodiment of the present disclosure is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal device may also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc.
  • the terminal device may be a car with communication function, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, etc.
  • the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal device.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • the F1 terminating IAB-donor can implement the method shown in any one of the embodiments of Figures 4 to 5 of the present disclosure
  • the target IAB-donor can implement the method shown in the embodiment of Figure 4 or 6 of the present disclosure
  • the IAB-node can implement the method shown in the embodiment of Figure 7 of the present disclosure
  • the source non-F1 terminating IAB-donor can implement the method shown in the embodiment of Figure 8 of the present disclosure.
  • the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution provided by the embodiment of the present disclosure.
  • a person skilled in the art can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution provided by the embodiment of the present disclosure is also applicable to similar technical problems.
  • FIG3 is a schematic diagram of a process in which a UE performs two consecutive migrations provided by an embodiment of the present disclosure.
  • a mobile IAB-node may undergo multiple partial migrations.
  • the F1-terminating IAB-donor is IAB-donor1
  • the non-F1 terminating IAB-donor is IAB-donor2. Since the ID information of the IAB-donor before the switching is retained after the IAB-MT switching, the IAB-donor-DU2 can reliably route the UE's data to the IAB-donor-CU1 through the F1 connection.
  • IAB-node moves, if the IAB-node performs another partial migration (the second partial migration), that is, the IAB-MT switches to IAB-donor-CU3 (which can be called the target IAB-donor or the Targetnon-F1 terminating IAB-donor), then it is necessary to establish a route from IAB-donor-CU1 to IAB-DU1 via IAB-donor-DU3, and the ID information retained before the switch is IAB-donor2. Therefore, it is necessary to determine how to establish a route from IAB-donor-CU1 to IAB-DU1 via IAB-donor-DU3.
  • the second partial migration the second partial migration
  • IAB-MT switches to IAB-donor-CU3 (which can be called the target IAB-donor or the Targetnon-F1 terminating IAB-donor)
  • IAB-donor-CU3 which can be called the target IAB-donor or the Targetnon-F1 terminating IAB-donor
  • IAB-DU2 establishes an F1 connection with IAB-donor-CU3.
  • IAB-DU2 provides a logical cell different from IAB-DU1.
  • IAB-donor-CU1 needs to interact with IAB-donor-CU3 to perform UE migration/switching, that is, the UE needs to switch from the source cell under IAB-DU1 under IAB-donor-CU1 to the target cell under IAB-DU2 under IAB-donor-CU3. This requires determining how to implement information interaction between IAB-donor-CU1 and IAB-donor-CU3.
  • the IAB-node may perform full migration or partial migration, which requires information interaction between the source IAB-donor and the target IAB-donor.
  • the migration method provided in the present invention information interaction between the source IAB-donor and the target IAB-donor can be achieved, thereby providing conditions for realizing multiple migrations of the IAB-node.
  • Figure 4 is a flow chart of a migration method provided by an embodiment of the present disclosure, and the method is performed by an IAB-donor. As shown in Figure 4, the method may include but is not limited to the following steps:
  • Step 401 Before executing the IAB-node migration, determine the information that the IAB-node has executed the migration.
  • the IAB-donor in the present disclosure may be the F1 terminating IAB-donor, or may be the target IAB-donor. That is, when the IAB-node is migrated, the F1 terminating IAB-donor or the target IAB-donor may implement reliable migration of the IAB-node by executing the migration method provided in the present disclosure.
  • the information that the IAB-node has executed migration may include at least the number of migrations executed by the IAB-node and/or the type of migrations executed.
  • the information that the IAB-node has executed migration may include that the IAB-node has executed a partial migration; or, the information that the IAB-node has executed migration may include that the IAB-node has executed a full migration, etc., which is not limited in the present disclosure.
  • Step 402 In response to the IAB-node having performed at least one partial migration, first migration information associated with the IAB-node is obtained.
  • the F1 terminating IAB-donor needs to exchange information with the target IAB-donor, and at this time, the F1 terminating IAB-donor and the target IAB-donor do not know each other's identification and information. Therefore, in the present disclosure, when the IAB-donor determines that the IAB-node has completed a partial migration, it can first obtain the first migration information associated with the IAB-node.
  • the first migration information associated with the IAB-node may include information for indicating a target IAB-donor.
  • the information for indicating the target IAB-donor may be at least one of the following information:
  • the identifier of the global NG-RAN node of the target IAB-donor such as the global NG-RAN node ID of the TargetIAB-donor (including the public land mobile network (PLMN) ID and gNBID), etc., which is not limited in the present disclosure.
  • the cell identifier of the target IAB-donor serving the IAB-MT may be, for example, a physical cell identity (PCI) and/or a cell global identity (CGI), etc., which is not limited in the present disclosure.
  • PCI physical cell identity
  • CGI cell global identity
  • the transport layer address of the target IAB-donor may be, for example, an IP address and/or a TEID, etc., which is not limited in the present disclosure.
  • F1 terminating IAB-donor can determine the target IAB-donor according to the first migration information, and then can exchange information with the target IAB-donor to complete the reliable migration of IAB node.
  • the first migration information associated with the IAB-node may further include information for indicating an F1-terminating IAB-donor (F1terminating IAB-donor).
  • the information for indicating an F1-terminating IAB-donor may be at least one of the following information:
  • the identifier of the NG-RAN node that provides services to the F1 terminating IAB-donor is not limited in this disclosure.
  • the cell identifier of the IAB-DU in F1 terminating IAB-donor may be, for example, PCI and/or CGI, etc., which is not limited in the present disclosure.
  • the transport layer address of F1 terminating IAB-donor may be, for example, an IP address and/or TEID, etc., which is not limited in the present disclosure.
  • the target IAB-donor can determine the F1 terminating IAB-donor according to the first migration information, and then exchange information with the F1 terminating IAB-donor to complete the reliable migration of the IAB node.
  • the first migration information associated with the IAB-node may further include identification information for indicating the IAB-MT.
  • the F1terminating IAB-donor or the target IAB-donor can determine the IAB-node to be migrated according to the identification information of the IAB-MT, and then complete the migration of the IAB-node.
  • the identification information of the IAB-MT includes at least one of the following items: identification information of the IAB-MT on the IAB-donor terminating F1; identification information of the IAB-MT on the target IAB-donor; context identification (ID) of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • the identification information of the IAB MT may be the identification information of the IAB-MT on the target IAB-donor, and the identification information may uniquely identify the identification of the IAB-MT in the TargetIAB-donor, for example, it may be the TargetIAB-donor UE XnAP ID.
  • the identification information of the IAB MT may be the identification information of the IAB-MT on the F1 terminating IAB-donor, and the identification information may uniquely identify the identification of the IAB-MT in the F1 terminating IAB-donor, for example, it may be the F1 terminating IAB-donor UE XnAP ID.
  • the context ID of IAB-MT can be the connected-Radio Network Temporary Identity (C-RNTI).
  • C-RNTI connected-Radio Network Temporary Identity
  • the identification information of IAB-MT in the core network may be the Global Unique Temporary Identifier (GUTI) corresponding to IAB-MT, or the corresponding link identifier (Link ID), etc., which is not limited in the present disclosure.
  • GUI Global Unique Temporary Identifier
  • Link ID link identifier
  • the identification information of the IAB-MT may also be the identification of its corresponding IAB-node, which is not limited in the present disclosure.
  • the first migration information may further include indication information for indicating that the first migration information comes from a non-F1 terminated IAB-donor.
  • Step 403 Perform IAB-node migration according to the first migration information.
  • performing IAB-node migration may include performing partial migration of the IAB-node, or performing full migration of the IAB-node. For example, performing transfer migration management of the IAB-node between the target IAB-donor and the F1 terminating IAB-donor (partial migration), or performing transfer migration between the target IAB-donor and the F1 terminating IAB-donor (i.e. full migration).
  • the IAB-donor before performing IAB-node migration, the IAB-donor first determines the information that the IAB-node has performed migration. If it is determined that the IAB-node has performed at least one partial migration, the first migration information associated with the IAB-node can be first obtained, and then the IAB-node can be migrated based on the first migration information. In this way, multiple continuous migrations of the IAB-node can be reliably achieved.
  • Figure 5 is a flow chart of another migration method provided by an embodiment of the present disclosure, which is performed by the F1terminatingIAB-donor. As shown in Figure 5, the method may include but is not limited to the following steps:
  • Step 501 Before executing the IAB-node migration, determine the information that the IAB-node has executed the migration.
  • step 501 can refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • Step 502 In response to the IAB-node having performed at least one partial migration, receiving first migration information associated with the IAB-node and sent by the IAB-node.
  • the first migration information may include information for indicating the target IAB-donor.
  • the achievable form of the information for indicating the target IAB-donor may refer to the detailed description of any embodiment of the present disclosure, which will not be described in detail here.
  • the first migration information may further include identification information for indicating the IAB-MT.
  • the F1 terminating IAB-donor may determine the IAB-node to be migrated according to the identification information of the IAB-MT.
  • the identification information used to indicate the IAB-MT may include at least one of the following: identification information of the IAB-MT on the IAB-donor terminated by F1; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node, etc.
  • the specific implementation form of each identification information indicating the IAB-MT can refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • F1 terminatingIAB-donor before executing the IAB-node migration, F1 terminatingIAB-donor can determine the information that the IAB-node has executed the migration. If it is determined that the IAB-node has executed at least one partial migration, it can receive the first migration information associated with it sent by the IAB-node.
  • the F1 terminatingIAB-donor may receive the first migration information sent by the IAB-node through an F1 application protocol (AP) message.
  • AP application protocol
  • the F1 terminatingIAB-donor may receive the first migration information sent by the IAB-node through a gNB-DU configuration update (CONFIGURATION UPDATE) message, or may receive the first migration information through other F1AP messages, which is not limited in the present disclosure.
  • the first migration information received by F1 terminatingIAB-donor in the present disclosure may be actively sent by IAB-node before executing migration again after executing at least one partial migration; or, it may be sent by IAB-node after F1 terminatingIAB-donor sends a first migration information reporting instruction to IAB-node after determining that IAB-node has executed at least one partial migration, so as to request the migration information from IAB-node.
  • the present disclosure does not limit this.
  • Step 503 Determine the target IAB-donor according to the information indicating the target IAB-donor included in the first migration information.
  • Step 504 Send the second migration information associated with the IAB-node to the target IAB-donor, so that the target IAB-donor determines the IAB-node that needs to be migrated according to the second migration information.
  • the F1 terminatingIAB-donor may send the second migration information to the target IAB-donor to indicate to the target IAB-donor the IAB-node to perform the migration.
  • the second migration information may include the identification information of the IAB-MT.
  • the target IAB-donor can determine the IAB-node to be migrated according to the identification information of the IAB-MT, and then complete the migration of the IAB-node.
  • the target IAB-donor and the F1 terminating IAB-donor perform the transmission migration management of the IAB-node (partial migration), or the target IAB-donor and the F1 terminating IAB-donor perform the UE migration (i.e., complete migration).
  • the identification information of the IAB-MT includes at least one of the following items: identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • identification information of the IAB-MT on the target IAB-donor includes at least one of the following items: identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • the specific implementation form of each identification information indicating the IAB-MT can refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • the F1 terminating IAB-donor may send the second migration information to the target IAB-donor via an XnAP message.
  • the XnAP message may be an IAB transport migration management request (TransportMigrationManagementRequest) for performing a partial migration; in other embodiments, the XnAP message may be a UE migration request (MigrationRequest) for performing a full migration.
  • F1 terminatingIAB-donor before executing the IAB-node migration, F1 terminatingIAB-donor first determines the information that the IAB-node has executed the migration. If it is determined that the IAB-node has executed at least one partial migration, it can receive the first migration information sent by the IAB-node, and then determine the target IAB-donor based on the first migration information, and then send the second migration information to the target IAB-donor so that the target IAB-donor determines the IAB-node to be migrated.
  • F1 terminatingIAB-donor can determine the target IAB-donor to which the IAB-node is to be migrated, and thus reliably realize multiple continuous migrations of the IAB-node by exchanging information with the target IAB-donor.
  • Figure 6 is a flow chart of another migration method provided by an embodiment of the present disclosure, and the method is performed by the target IAB-donor. As shown in Figure 6, the method may include but is not limited to the following steps:
  • Step 601 Before executing the IAB-node migration, determine the information that the IAB-node has executed the migration.
  • step 601 may refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • Step 602 In response to the IAB-node having performed at least one partial migration, receiving first migration information associated with the IAB-node and sent by an IAB-donor whose source is not F1 terminated.
  • the source non-F1 terminatingIAB-donor is the non-F1 terminatingIAB-donor corresponding to the IAB-node after it has performed at least one partial migration.
  • the first migration information associated with the IAB-node may further include information for indicating the IAB-donor for F1 termination.
  • the implementation form of the information for indicating the IAB-donor for F1 termination may refer to the detailed description of any embodiment of the present disclosure, which will not be repeated here.
  • the first migration information associated with the IAB-node may further include identification information for indicating the IAB-MT.
  • the target IAB-donor can determine the IAB-node to be migrated according to the identification information of the IAB-MT, and then complete the migration of the IAB-node.
  • the identification information of the IAB-MT includes at least one of the following items: identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node, etc.
  • identification information of the IAB-MT on the target IAB-donor includes at least one of the following items: identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node, etc.
  • the specific implementation form and meaning of the identification information of each of the above IAB-MTs can refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • the first migration information may further include indication information for indicating that the first migration information comes from a non-F1 terminated IAB-donor.
  • the target IAB-donor may receive the first migration information sent by the source non-F1 terminating IAB-donor via an XnAP message.
  • Step 603 Determine the IAB-donor for F1 termination according to the information for indicating the IAB-donor for F1 termination.
  • Step 604 Send the third migration information associated with the IAB-node to the IAB-donor where F1 is terminated, so that the IAB-donor where F1 is terminated determines the IAB-node that needs to be migrated according to the third migration information.
  • the third migration information may include: identification information for indicating the IAB-MT.
  • the identification information of the IAB-MT may be at least one of the following: identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • the specific implementation form and meaning of the identification information of each of the above IAB-MTs may refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • the target IAB-donor after the target IAB-donor determines the F1 terminating IAB-donor, it can send the third migration information to the F1 terminating IAB-donor to indicate the IAB-node to be migrated to the F1 terminating IAB-donor.
  • the F1 terminating IAB-donor can determine the IAB-node to be migrated according to the identification information of the IAB-MT, and interact with the target IAB-donor to complete the transmission migration management of the IAB-node (partial migration), or perform UE migration with the F1 terminating IAB-donor (i.e., complete migration).
  • the target IAB-donor may send a third migration message to the F1 terminatingIAB-donor via an XnAP message.
  • the target IAB-donor before executing the IAB-node migration, the target IAB-donor first determines the information that the IAB-node has executed the migration. If it is determined that the IAB-node has executed at least one partial migration, then the first migration information sent by the source non-F1 terminatingIAB-donor can be received, and then the F1 terminatingIAB-donor can be determined based on the first migration information, and then the third migration information can be sent to the F1 terminatingIAB-donor so that the F1 terminatingIAB-donor can determine the IAB-node to be migrated.
  • the target IAB-donor can determine the F1 terminating IAB-donor corresponding to the IAB-node through the first migration information sent by the source non-F1 terminatingIAB-donor, and thus reliably realize multiple continuous migrations of the IAB-node by exchanging information with the F1 terminating IAB-donor.
  • FIG. 7 is a flow chart of another migration method provided by an embodiment of the present disclosure, and the method is executed by an IAB node. As shown in FIG. 7, the method may include but is not limited to the following steps:
  • Step 701 before executing the migration, determine the information of the executed migration.
  • Step 702 In response to at least one partial migration having been performed, first migration information is sent to the IAB-donor terminated by F1, so that the IAB-donor terminated by F1 performs the IAB-node migration according to the first migration information.
  • the IAB-node may first determine the information of the migration it has already executed, such as the type and/or number of migrations that have been executed, etc. Afterwards, if it is determined that it has already executed at least one partial migration, before executing the migration again, it is necessary to ensure that the target IAB-donor to be migrated to can exchange information with the current F1 terminating IAB-donor, so that it can send the first migration information to the F1 terminating IAB-donor, so that the F1 terminating IAB-donor executes the migration of the IAB-node based on the first migration information.
  • the first migration information includes at least one of the following: information used to indicate the target IAB-donor, and identification information used to indicate the IAB mobile terminal MT.
  • the identification information of the IAB-MT includes at least one of the following items: identification information of the IAB-MT on the IAB-donor where F1 is terminated; identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • the IAB-node may proactively send the first migration information to the F1 terminating IAB-donor after executing at least one partial migration and before executing the next migration; or, after receiving an instruction from the F1 terminating IAB-donor to report the first migration information, the IAB-node may send the first migration information to the F1 terminating IAB-donor, which is not limited in the present disclosure.
  • the first migration information may be sent by a source non-F1 terminated IAB-donor to the IAB-node, or may be sent by a target IAB-donor to the IAB-node.
  • the source non-F1 terminating IAB-donor is the non-F1 terminating IAB-donor corresponding to the IAB-node after it has performed at least one partial migration.
  • the IAB-node may receive the first migration information sent by the source non-F1terminating IAB-donor or the target IAB-donor through a radio resource control (RCC) message.
  • RRC radio resource control
  • the first migration information received by the IAB-node may be actively sent to it by the source non-F1 terminating IAB-donor or the target IAB-donor; or, it may be obtained by the IAB-node after requesting the source non-F1 terminating IAB-donor or the target IAB-donor after executing at least one partial migration and before executing the next migration.
  • the present disclosure does not limit this.
  • the IAB-node before executing migration, the IAB-node first determines the information of the migration it has executed. When it is determined that it has executed at least one partial migration, it sends the first migration information to the F1 terminating IAB-donor, so that the F1 terminating IAB-donor exchanges information with the target IAB-donor based on the first migration information, thereby reliably realizing multiple consecutive migrations of the IAB-node.
  • Figure 8 is a flowchart of another migration method provided by an embodiment of the present disclosure, which is performed by the source non-F1 integrated access and backhaul termination node IAB-donor. As shown in Figure 8, the method may include but is not limited to the following steps:
  • Step 801 Before executing the IAB-node migration, determine the information that the IAB-node has executed the migration.
  • step 801 can refer to the detailed description of any embodiment of the present disclosure, and will not be repeated here.
  • Step 802 In response to the IAB-node having performed at least one partial migration, first migration information is sent to the target IAB-donor, so that the target IAB-donor performs IAB-node migration according to the first migration information.
  • the first migration information includes at least one of the following: information used to indicate an F1-terminated IAB-donor, identification information used to indicate an IAB-MT, and indication information used to indicate that the first migration information comes from an IAB-donor that is not F1-terminated.
  • the identification information of the IAB-MT includes at least one of the following items: identification information of the IAB-MT on the IAB-donor terminating F1; identification information of the IAB-MT on the target IAB-donor; context ID of the IAB-MT; identification information of the IAB-MT in the core network; and identification of the IAB-node.
  • the source non-F1 terminating IAB-donor before executing the IAB-node migration, can first determine the migration information that the IAB-node has executed. When it is determined that the IAB-node has executed at least one partial migration, the information for indicating the F1 terminating IAB-donor corresponding to the IAB-node can be sent to the target IAB-donor, so that the target IAB-donor can determine the F1 terminating IAB-donor according to the information for indicating the F1 terminating IAB-donor, and then exchange information with the F1 terminating IAB-donor to complete the migration of the IAB-node.
  • the source non-F1 terminating IAB-donor may send the first migration information to the target IAB-donor via an XnAP message.
  • the source non-F1 terminating IAB-donor before executing the IAB-node migration, can first determine the migration information that the IAB-node has executed. When it is determined that the IAB-node has executed at least one partial migration, the first migration information can be sent to the target IAB-donor, so that the target IAB-donor determines the F1 terminating IAB-donor. Therefore, based on the fact that the IAB-node has executed at least one partial migration, the re-migration of the IAB-node can be reliably realized.
  • Figure 9 is an interactive schematic diagram of a migration method provided by an embodiment of the present disclosure. As shown in Figure 9, the method may include but is not limited to the following steps:
  • Step 901 Before executing migration, the IAB-node determines information about executed migration.
  • Step 902 When the IAB-node determines that at least one partial migration has been performed, the IAB-node determines first migration information.
  • the IAB-node can receive the first migration information sent by the target IAB-donor or the source non-F1 terminating IAB-donor through the RRC message.
  • Step 903 IAB-node sends the first migration information to F1 terminating IAB-donor.
  • Step 904 F1 terminating IAB-donor determines the target IAB-donor according to the first migration information.
  • Step 905 F1 terminating IAB-donor sends the second migration information to the target IAB-donor.
  • the IAB-node after performing at least one partial migration, can send first migration information to the F1 terminating IAB-donor before performing migration again, so that the F1 terminating IAB-donor determines the target IAB-donor according to the first migration information, and then sends second migration information to the target IAB-donor, thereby completing the partial migration or full migration of the IAB-node.
  • Figure 10 is an interactive schematic diagram of another migration method provided by an embodiment of the present disclosure. As shown in Figure 10, the method may include but is not limited to the following steps:
  • Step 1001 before executing the IAB-node migration, the source non-F1 terminating IAB-donor determines the information that the IAB-node has executed the migration.
  • Step 1002 In response to the IAB-node having performed at least one partial migration, sending first migration information to a target IAB-donor.
  • Step 1003 the target IAB-donor determines the F1 terminating IAB-donor based on the first migration information.
  • Step 1004 the target IAB-donor sends the third migration information to the F1 terminating IAB-donor.
  • the source non F1 terminating IAB-donor before executing IAB-node migration, first determines the migration information it has executed, and after determining that it has executed at least one partial migration, it can first send first migration information to the target IAB-donor, so that the target IAB-donor determines the F1 terminating IAB-donor according to the first migration information, and then sends third migration information to the F1 terminating IAB-donor, thereby completing the partial migration or full migration of the IAB-node.
  • the communication device 1100 shown in Figure 11 may include a processing module 1101 and a transceiver module 1102.
  • the transceiver module 1102 may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module 1102 may implement a sending function and/or a receiving function.
  • the communication device 1100 may be an IAB-donor, or a device in an IAB-donor, or a device that can be used in conjunction with an IAB-donor.
  • the communication device 1100 is on the IAB-donor side, wherein:
  • the processing module 1101 is used to determine information that the IAB-node has performed migration before performing migration of the integrated access and backhaul relay node IAB-node;
  • the transceiver module 1102 is configured to obtain first migration information associated with the IAB-node in response to the IAB-node having performed at least one partial migration;
  • the processing module 1101 is further configured to execute the IAB-node migration according to the first migration information.
  • the IAB-donor is an IAB-donor terminated by F1
  • the transceiver module 1102 is further configured to:
  • the first migration information associated with the IAB-node and sent by the IAB-node is received.
  • the first migration information includes at least one of the following:
  • the transceiver module 1102 is further configured to send second migration information associated with the IAB-node to the target IAB-donor, so that the target IAB-donor determines the IAB-node that needs to be migrated according to the second migration information.
  • the processing module 1101 is further configured to determine a target IAB-donor according to information indicating a target IAB-donor included in the first migration information.
  • the second migration information includes: identification information of IAB-MT.
  • the IAB-donor is a target IAB-donor
  • the transceiver module 1102 is further configured to receive first migration information associated with the IAB-node and sent by a source non-F1 terminated IAB-donor.
  • the first migration information includes at least one of the following:
  • Information used to indicate an F1-terminated IAB-donor identification information used to indicate an IAB-MT, and indication information used to indicate that the first migration information comes from an IAB-donor that is not F1-terminated.
  • the transceiver module 1102 is further configured to send third migration information associated with the IAB-node to the IAB-donor terminated by F1, so that the IAB-donor terminated by F1 determines the IAB-node that needs to perform migration according to the third migration information.
  • the processing module 1101 is further used to determine the IAB-donor for F1 termination according to the information for indicating the IAB-donor for F1 termination.
  • the third migration information includes: identification information used to indicate the IAB-MT.
  • the information used to indicate the target IAB-donor or the information used to indicate the IAB-donor for F1 termination includes a next generation radio access network NG-RAN node identifier and/or address information of a transmission network.
  • the identification information of the IAB-MT includes at least one of the following items:
  • the identification information of the IAB-MT on the IAB-donor terminated in F1;
  • the identifier of the IAB-node is the identifier of the IAB-node.
  • the communication device 1100 is at the IAB-node side, wherein:
  • the processing module 1101 is used to determine the information of the executed migration before executing the migration;
  • the transceiver module 802 is configured to send first migration information to the IAB-donor where F1 is terminated in response to at least one partial migration being performed, so that the IAB-donor where F1 is terminated performs the IAB-node migration according to the first migration information.
  • the first migration information includes at least one of the following:
  • the transceiver module 1102 is further configured to:
  • the first migration information sent by the target IAB-donor is received.
  • the communication device 1100 is on the source non-F1 terminating IAB-donor side, wherein:
  • the processing module 1101 is used to determine information that the IAB-node has performed migration before performing migration of the integrated access and backhaul relay node IAB-node;
  • the transceiver module 1102 is configured to send first migration information to a target IAB-donor in response to the IAB-node having performed at least one partial migration, so that the target IAB-donor performs the migration of the IAB-node according to the first migration information.
  • the first migration information includes at least one of the following:
  • Information used to indicate an F1-terminated IAB-donor identification information used to indicate an IAB-MT, and indication information used to indicate that the first migration information comes from an IAB-donor that is not F1-terminated.
  • the identification information of the IAB-MT includes at least one of the following items:
  • the identification information of the IAB-MT on the IAB-donor terminated in F1;
  • the identifier of the IAB-node is the identifier of the IAB-node.
  • the communication device before the IAB-node performs another migration, the communication device first synchronizes the first migration information of the IAB-node to realize the information interaction between the FI terminatingIAB-donor and the target IAB-donor based on the first migration information, thereby reliably realizing the continuous multiple migrations of the IAB-node.
  • the communication device 1200 can be an IAB-donor, or a chip, a chip system, or a processor that supports the IAB-donor to implement the above method.
  • it can also be an IAB-node, or a chip, a chip system, or a processor that supports the IAB-node to implement the above method.
  • the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
  • the communication device 1200 may include one or more processors 1201.
  • the processor 1201 may be a general-purpose processor or a dedicated processor, etc.
  • it may be a baseband processor or a central processing unit.
  • the baseband processor may be used to process the communication protocol and communication data
  • the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
  • the communication device 1200 may further include one or more memories 1202, on which a computer program 1204 may be stored, and the processor 1201 executes the computer program 1204 so that the communication device 1200 performs the method described in the above method embodiment.
  • data may also be stored in the memory 1202.
  • the communication device 1200 and the memory 1202 may be provided separately or integrated together.
  • the communication device 1200 may further include a transceiver 1205 and an antenna 1206.
  • the transceiver 1205 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 1205 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., and is used to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is used to implement a transmitting function.
  • the communication device 1200 may further include one or more interface circuits 1207.
  • the interface circuit 1207 is used to receive code instructions and transmit them to the processor 1201.
  • the processor 1201 runs the code instructions to enable the communication device 1200 to perform the method described in the above method embodiment.
  • the communication device 1200 is an IAB-donor
  • the transceiver 1205 is used to execute the transceiver steps in FIG. 4 to FIG. 6
  • the processor 1201 is used to execute the processing steps in FIG. 4 to FIG. 6 .
  • the communication device 1200 is an IAB-node, the transceiver 1205 is used to execute the transceiver steps in FIG. 7 , and the processor 1201 is used to execute the processing steps in FIG. 7 .
  • the processor 1201 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, an interface, or an interface circuit.
  • the transceiver circuit, interface, or interface circuit for implementing the receiving and sending functions may be separate or integrated.
  • the above-mentioned transceiver circuit, interface, or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface, or interface circuit may be used for transmitting or delivering signals.
  • the processor 1201 may store a computer program 1203, which runs on the processor 1201 and enables the communication device 1200 to perform the method described in the above method embodiment.
  • the computer program 1203 may be fixed in the processor 1201, in which case the processor 1201 may be implemented by hardware.
  • the communication device 1200 may include a circuit that can implement the functions of sending or receiving or communicating in the aforementioned method embodiments.
  • the processor and transceiver described in the present disclosure may be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc.
  • the processor and transceiver may also be manufactured using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS N-type metal oxide semiconductor
  • PMOS P-type metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a network device or an intelligent relay, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by FIG. 12.
  • the communication device may be an independent device or may be part of a larger device.
  • the communication device may be:
  • the IC set may also include a storage component for storing data and computer programs;
  • ASIC such as modem
  • the communication device can be a chip or a chip system
  • the communication device can be a chip or a chip system
  • the schematic diagram of the chip structure shown in Figure 13 includes a processor 1301 and an interface 1302.
  • the number of processors 1301 can be one or more, and the number of interfaces 1302 can be multiple.
  • the chip further includes a memory 1303, and the memory 1303 is used to store necessary computer programs and data.
  • the present disclosure also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
  • the present disclosure also provides a computer program product, which implements the functions of any of the above method embodiments when executed by a computer.
  • the computer program product includes one or more computer programs.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer program 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 program can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (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 can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a high-density digital video disc (DVD)
  • DVD high-density digital video disc
  • SSD solid state disk
  • At least one in the present disclosure may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present disclosure.
  • the technical features in the technical feature are distinguished by “first”, “second”, “third”, “A”, “B”, “C” and “D”, etc., and there is no order of precedence or size between the technical features described by the "first”, “second”, “third”, “A”, “B”, “C” and “D”.
  • the corresponding relationships shown in the tables in the present disclosure can be configured or predefined.
  • the values of the information in each table are only examples and can be configured as other values, which are not limited by the present disclosure.
  • the corresponding relationships shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
  • the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication device.
  • other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
  • the predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.

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Abstract

本公开实施例公开了一种迁移的方法及装置，可应用于通信技术领域，其中，由IAB-donor执行的方法包括：在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；根据所述第一迁移信息执行所述IAB-node迁移。由此，在对IAB-node连续执行多次迁移前，先确定IAB-node关联的第一迁移信息，进而基于第一迁移信息即可可靠实现IAB-node的连续多次迁移。

Description

一种迁移的方法及装置 技术领域
本公开涉及通信技术领域，尤其涉及一种迁移的方法及装置。
背景技术
集成接入和回传(Integrated access and backhaul，IAB)，支持毫米波网络设备进行无线接入和回传，在部署密集网络时可有效减少新增光纤部署需求，使下一代(next generation，NG)无线接入网络(radio access network，RAN)中的无线中继成为可能。其中，中继节点称为IAB-node，支持通过新空口(new radio，NR)进行无线接入和回传。网络侧NR回传的终止节点称为IAB-donor，是一个附加了IAB功能的网络设备。NGRAN通过IAB-node无线连接到能够服务IAB-node的IAB-donor来支持IAB。
随着IAB-node的移动改变，需要执行IAB-node迁移(migration)过程。如何实现IAB-node的多次迁移，是目前亟需解决的问题。
发明内容
本公开实施例提供一种迁移的方法及装置，在IAB-node进行多次连续迁移前，若其至少执行了一次部分迁移，则可以首先确定其关联的第一迁移信息，进而基于第一迁移信息即可实现IAB-node的多次连续迁移。
第一方面，本公开实施例提供一种迁移的方法，该方法由IAB-donor执行，方法包括：在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；根据所述第一迁移信息执行所述IAB-node迁移。
本公开中IAB-donor，在执行IAB-node迁移前，首先确定IAB-node已执行迁移的信息，若确定该IAB-node已执行了至少一次部分迁移，那么即可首先获取IAB-node关联的第一迁移信息，进而基于该第一迁移信息对该IAB-node进行迁移。由此，可靠实现了对IAB-node的多次连续迁移。
第二方面，本公开实施例提供一种迁移的方法，该方法由IAB-node执行，方法包括：在执行迁移前，确定已执行迁移的信息；响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使所述F1终结的IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
第三方面，本公开实施例提供一种迁移的方法，该方法由源非F1集成接入和回传的终结节点IAB-donor执行，所述方法包括：在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；响应于所述IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使所述目标IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
第四方面，本公开实施例提供一种IAB-donor，包括：
处理模块，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
收发模块，用于响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；
所述处理模块，还用于根据所述第一迁移信息执行所述IAB-node迁移。
第五方面，本公开实施例提供一种IAB-node，包括：
处理模块，用于在执行迁移前，确定已执行迁移的信息；
收发模块，用于响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使所述F1终结的IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
第六方面，本公开实施例提供一种源non-F1 Terminating IAB-donor，包括：
处理模块，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
收发模块，用于响应于所述IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使所述目标IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
第七方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。
第八方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。
第九方面，本公开实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第三方面所述的方法。
第十方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。
第十一方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第十二方面，本公开实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第十三方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十四方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十五方面，本公开实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十六方面，本公开实施例提供一种通信系统，该系统包括第四方面所述的IAB-donor、第五方面所述的IAB-node及第六方面所述的源non-F1 Terminating IAB-donor，或者该系统包括第七方面所述的通信装置、第八方面所述的通信装置及第九方面所述的通信装置，或者，该系统包括第十方面所述的通信装置、第十一方面所述的通信装置及第十二方面所述的通信装置，或者，该系统包括第十三方面所述的通信装置、第十四方面所述的通信装置及第十五方面所述的通信装置。
第十七方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十八方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第二方面所述的方法。
第十九方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第二方面所述的方法。
第二十方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第二十一方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第二十二方面，本公开还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第二十三方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持终端设备实现第一方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十四方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十五方面，本公开提供一种芯片系统，该芯片系统包括至少一个处理器和接口，用于支持网络设备实现第二方面所涉及的功能，例如，确定或处理上述方法中所涉及的数据和信息中的至少一种。在 一种可能的设计中，所述芯片系统还包括存储器，所述存储器，用于保存终端设备必要的计算机程序和数据。该芯片系统，可以由芯片构成，也可以包括芯片和其他分立器件。
第二十六方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第二十七方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第二十八方面，本公开提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本公开实施例或背景技术中的技术方案，下面将对本公开实施例或背景技术中所需要使用的附图进行说明。
图1为IAB-node执行一次部分迁移后的回传链路示意图；
图2是本公开实施例提供的一种通信系统的架构示意图；
图3是本公开实施例提供的一种UE连续进行两次迁移的过程示意图；
图4是本公开实施例提供的一种迁移的方法的流程示意图；
图5是本公开实施例提供的另一种迁移的方法的流程示意图；
图6是本公开实施例提供的另一种迁移的方法的流程示意图
图7是本公开实施例提供的另一种迁移的方法的流程示意图；
图8是本公开实施例提供的另一种迁移的方法的流程示意图；
图9是本公开实施例提供的一种迁移的方法的交互示意图；
图10是本公开实施例提供的另一种迁移的方法的交互示意图；
图11是本公开实施例提供的一种通信装置的结构示意图；
图12是本公开实施例提供的另一种通信装置的结构示意图；
图13是本公开实施例提供的一种芯片的结构示意图。
具体实施方式
为了便于理解，首先介绍本公开涉及的术语。
1、IAB-node
IAB的中继节点，支持通过NR进行无线接入和回传。通过NR Uu接口的终端功能子集(称为IAB-node中的IAB移动终端(Mobile Termination，MT)功能)连接上游IAB-node或IAB-donor分布式单元(Distributed Unit，DU)。IAB-node通过NR Uu接口的网络功能(称为IAB-node的IAB-DU功能)，提供到下游IAB-node和用户设备(user equipment，UE)的无线回传。也就是说一个IAB-done可以看做由一个IAB-MT及至少一个IAB-DU组成。
2、IAB-donor
网络侧NR回传的终止节点称为IAB-donor，是一个附加了IAB功能的网络设备。IAB-donor包括一个IAB-donor集中单元(central unit，CU)和一个或多个IAB-donor DU。
IAB-node和IAB-donor-CU之间的FI接口的控制面(F1C)业务通过IAB-donorDU和可选的中间跳IAB-node进行回传。IAB-node和IAB-donor-CU之间的F1接口的用户面(F1U)业务通过IAB-donorDU和可选的中间跳IAB-node进行回传。
3、IAB-node迁移
在支持IAB-node移动的场景中，比如车载移动IAB节点，随着IAB-node的移动改变，这样就需要执行IAB-node迁移(migration)过程，迁移过程包括两种，部分迁移partialmigration和完全迁移fullmigration。
部分迁移是指只有IAB-node上的IAB MT迁移(也可以称为切换)到一个新的IAB-donor，而IAB-node上的IAB DU还保持与原来的IAB-donor连接，即IAB DU上的UE上下文也保存在原来的IAB-donor上。完全迁移是指IAB-node上的IAB MT迁移(也可以称为切换)到一个新的IAB-donor，并且IAB-node上的IAB DU也迁移(也可以称为切换)到一个新的IAB-donor。由于完全迁移后IAB-node会全部接入 到新的IAB-donor，通过IAB-node与IAB-donor连接的终端设备(以下简称UE)也会接入到新的IAB-donor，因此，完全迁移，也可以称为UE迁移。
4、F1终结的IAB-donor(F1-terminating IAB-donor)
F1连接的CU所在的IAB-donor，也就是IAB-DU及所有其服务的UE连接的IAB-donor，称为F1-terminating IAB-donor。图1为IAB-node执行一次部分迁移后的回传链路示意图。如图1所示，IAB-donor-CU1为原来服务IAB-node(图1中IAB-MT与IAB-DU1)的donor，在进行一次partialmigration后，IAB-donor-CU1可以称为F1终结的(terminating)IAB-donor。由于在IAB-MT切换后，会保留切换前的IAB-donor的ID信息，此时UE的数据会通过F1连接与IAB-donor-CU1之间传输(只是数据路由会经过IAB-donor DU2)，即UE的上下文保存在F1-terminating IAB-donor上。而IAB MT则已经切换到IAB-donor-CU2上，IAB MT的数据通过IAB-donor-CU2传输，IAB-donor-CU2称为非FI终结的(non-F1 terminating)IAB-donor。
需要说明的是，本公开中的F1 terminating IAB-donor(也就是IAB-DU及所有其服务的UE连接的IAB-donor)，在不同的迁移场景中的称呼可能不同，比如其也可能被称为源(source)IAB-donor，锚点(anchor)IAB-donor，主(master)IAB-donor。
non-F1 terminating IAB-donor为在IAB-node部分迁移后，IAB-MT连接的donor。源non-F1 terminating IAB-donor为IAB-node在执行新的部分迁移或完全迁移时，IAB-MT连接的donor。另外，targetIAB-donor(即在迁移过程中IAB-MT切换到的目标IAB-donor)也可能被称为target non-F1 terminating IAB-donor等等。
本公开旨在对IAB-node在一次部分迁移后，如何实现再次迁移的方法进行说明，与本公开中提供的迁移的方法相同或相似、但是对IAB-DU及所有其服务的UE连接的donor、及在迁移过程中IAB-MT切换到的目标IAB-donor的称呼不同的任何方案，都属于本公开涵盖的范围。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“响应于”可以被解释成为“在……时”或“当……时”或“如果”。出于简洁和便于理解的目的，本文在表征大小关系时，所使用的术语为“大于”或“小于”、“高于”或“低于”。但对于本领域技术人员来说，可以理解：术语“大于”也涵盖了“大于等于”的含义，“小于”也涵盖了“小于等于”的含义；术语“高于”涵盖了“高于等于”的含义，“低于”也涵盖了“低于等于”的含义。
为了更好的理解本公开实施例公开的一种迁移的方法，下面首先对本公开实施例适用的通信系统进行描述。
请参见图2，图2为本公开实施例提供的一种通信系统的架构示意图。该通信系统可包括但不限于一个IAB-donor、一个IAB-node和一个UE，图2所示的设备数量和形态仅用于举例并不构成对本公开实施例的限定，实际应用中可以包括两个或两个以上的IAB-donor，两个或两个以上的IAB-donor。图2所示的通信系统以包括3个IAB-donor11、IAB-donor12、IAB-donor13、一个IAB-node14为例和一个终端设备15。
需要说明的是，本公开实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。
本公开实施例中的IAB-donor是网络侧的一种附加了IAB功能的用于发射或接收信号的实体。例如，IAB-donor可以为附加了IAB功能的演进型基站(evolved NodeB，eNB)、附加了IAB功能的传输点(transmission reception point，TRP)、NR系统中的附加了IAB功能的下一代基站(next generation NodeB，gNB)、其他未来移动通信系统中的附加了IAB功能的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本公开的实施例对IAB-donor所采用的具体技术和具体设备形态不做限定。本公开实施例提供的IAB-donor可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本公开实施例中的IAB-node是为下游IAB-node和用户设备(user equipment，UE)提供无线回传 的中继节点。
本公开实施例中的终端设备15用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本公开的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
本系统中，F1 terminating IAB-donor可以实现本公开图4至图5任一实施例所示的方法，目标IAB-donor可以实现本公开图4或图6实施例所示的方法，IAB-node可以实现本公开图7实施例所示的方法，源non-F1 terminating IAB-donor可以实现本公开图8实施例所示的方法。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提供的技术方案对于类似的技术问题，同样适用。
图3是本公开实施例提供的一种UE连续进行两次迁移的过程示意图。通常，移动的IAB-node可能会经历多次partial migration，如图3a所示，IAB-node在经过一次的partialmigration后，F1-terminating IAB-donor为IAB-donor1，non-F1 terminating IAB-donor为IAB-donor2，由于在IAB-MT切换后，会保留切换前的IAB-donor的ID信息，此时IAB-donor-DU2可以将UE的数据通过F1连接可靠路由至IAB-donor-CU1。随着IAB-node的移动，如果IAB-node再进行一次partialmigration(第二次2 nd partialmigration)，即IAB-MT切换到IAB-donor-CU3(可以称为目标target IAB-donor或Targetnon-F1 terminating IAB-donor)，此时，就需要建立IAB-donor-CU1通过IAB-donor-DU3到IAB-DU1的路由，而保留的切换前的ID信息为IAB-donor2，因此就需要确定如何建立IAB-donor-CU1通过IAB-donor-DU3到IAB-DU1的路由。
如图3b所示，IAB-node在经过一次的partialmigration后，如果进行一次full migration，则IAB-node需要再建立一个逻辑IAB-DU2,IAB-DU2与IAB-donor-CU3建立F1连接，IAB-DU2提供与IAB-DU1不同的逻辑小区，在执行UE migration的时候，IAB-donor-CU1需要与IAB-donor-CU3进行交互执行UE迁移/切换，即UE需要从IAB-donor-CU1下IAB-DU1下的源小区切换到IAB-donor-CU3下IAB-DU2下的目标小区，这就需要确定如何实现IAB-donor-CU1与IAB-donor-CU3的信息交互。
上述两种场景中，IAB-node在经过了至少一次部分迁移后，可能会执行fullmigration或者partial migration，这就需要源IAB-donor与目标IAB-donor之间进行信息交互，利用本公开提供的迁移的方法，可以实现源IAB-donor与目标IAB-donor之间进行信息交互，从而为实现IAB-node的多次迁移提供了条件。
下面结合各流程图，对本公开实施例提供的迁移的方法进行详细的说明。
请参见图4，图4是本公开实施例提供的一种迁移的方法的流程示意图，该方法由IAB-donor执行。如图4所示，该方法可以包括但不限于如下步骤：
步骤401，在执行IAB-node迁移前，确定IAB-node已执行迁移的信息。
可选的，本公开中的IAB-donor可以为F1 terminating IAB-donor，或者，也可以为目标target IAB-donor。也就是说，在IAB-node迁移时，F1 terminating IAB-donor，或者target IAB-donor，可以通过执行本公开提供的迁移的方法，来实现对IAB-node的可靠迁移。
其中，IAB-node已执行迁移的信息可以至少包括IAB-node已执行的迁移的次数和/或已执行的迁移的类型。比如IAB-node已执行迁移的信息可以为IAB-node已执行了一次部分迁移；或者，IAB-node已执行迁移的信息可以为IAB-node已执行了一次完全迁移等等，本公开对此不做限定。
步骤402，响应于IAB-node已执行了至少一次部分迁移，获取与IAB-node关联的第一迁移信息。
具体地，若IAB-node已执行了至少一次部分迁移，那么在进行新的迁移时，就需要F1  terminatingIAB-donor与target IAB-donor进行信息交互，而此时F1 terminating IAB-donor与target IAB-donor之间并不知道对方的标识和信息。因此，本公开中，在IAB-donor在确定IAB-node已完成了一次部分迁移的情况下，可以首先获取与IAB-node关联的第一迁移信息。
可选的，与IAB-node关联的第一迁移信息可以包括用于指示目标IAB-donor的信息。其中，用于指示目标IAB-donor的信息可以为以下信息至少之一：
目标IAB-donor的全球的NG-RAN node的标识，比如为TargetIAB-donor的全球的NG-RAN node ID(包括公共陆地移动网络(public land mobile network，PLMN)ID和gNBID)等，本公开对此不做限定。
目标IAB-donor中服务IAB-MT的小区标识，比如可以是物理小区标识(phycicalcell identity，PCI)和/或小区全球标识(cellglobalidentily，CGI)等，本公开对此不做限定。
目标IAB-donor的传输层地址，比如可以是IP地址和/或TEID等，本公开对此不做限定。
由此，F1 terminating IAB-donor即可根据第一迁移信息，确定target IAB-donor，进而可以与target IAB-donor进行信息交互，完成IAB node的可靠迁移。
可选的，与IAB-node关联的第一迁移信息，还可以包括用于指示F1终结的IAB-donor(F1terminating IAB-donor)的信息。其中，用于指示F1终结的IAB-donor的信息，可以为以下信息至少之一：
F1 terminating IAB-donor提供服务的NG-RAN node的标识，比如为F1 terminatingIAB-donor的全球的NG-RAN node ID(包括PLMN ID和gNBID)等,本公开对此不做限定。
F1 terminating IAB-donor中IAB-DU的小区标识，比如可以是PCI和/或CGI等，本公开对此不做限定。
F1 terminating IAB-donor的传输层地址，比如可以是IP地址和/或TEID等，本公开对此不做限定。
由此，target IAB-donor即可根据第一迁移信息，确定F1 terminating IAB-donor，进而与F1terminating IAB-donor进行信息交互，完成IAB node的可靠迁移。
可选的，与IAB-node关联的第一迁移信息，还可以包括用于指示IAB-MT的标识信息。由此，F1terminating IAB-donor或target IAB-donor即可根据IAB-MT的标识信息确定要迁移的IAB-node，进而完成对该IAB-node的迁移。
可选的，IAB-MT的标识信息包括以下各项至少之一：IAB-MT在F1终结的IAB-donor上的标识信息；IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文标识(identification，ID)；IAB-MT在核心网的标识信息；及IAB-node的标识。
需要说明的是，若第一迁移信息是由F1 terminating IAB-donor获取的，那么IAB MT的标识信息可以为IAB-MT在目标IAB-donor上的标识信息，该标识信息可以唯一标识IAB-MT在TargetIAB-donor中的标识，比如，可以为TargetIAB-donor UE XnAP ID。相应的，若第一迁移信息是由Target IAB-donor获取的，那么IAB MT的标识信息可以为IAB-MT在F1 terminatingIAB-donor上的标识信息，该标识信息可以唯一标识IAB-MT在F1 terminatingIAB-donor中的标识，比如，可以为F1 terminatingIAB-donor UE XnAP ID。
IAB-MT的上下文ID，可以是连接的无线网络临时标识(Connected-Radio Network Temporary Identity，C-RNTI)。
IAB-MT在核心网的标识信息，可以为IAB-MT对应的全局唯一临时标识符(Global Unique Temporary Identifier，GUTI)，或者，也可以为其对应的链路标识(Link ID)等，本公开对此不做限定。
另外，由于一个IAB-node中包含一个IAB-MT，因此该IAB-MT的标识信息，还可以为其对应的IAB-node的标识，本公开对此不做限定。
可选的，若该第一迁移信息为TargetIAB-donor获取的，那么该第一迁移信息中，还可以包括用于指示第一迁移信息来自非F1终结的IAB-donor的指示信息。
步骤403，根据第一迁移信息执行IAB-node迁移。
可选的，执行IAB-node迁移，可以包括执行IAB-node的部分迁移，或者执行IAB-node的完全迁移。比如，target IAB-donor与F1 terminatingIAB-donor之间进行该IAB-node的传输迁移管理(部分迁移)，或者，target IAB-donor与F1 terminatingIAB-donor之间进行传输迁移(即完全迁移)。
需要说明的是，若IAB-node当前执行的是完全迁移，那么在完全迁移后，再次执行一次新的部分 迁移或完全迁移时，由于当前为IAB-node提供服务的仅有一个IAB-donor，只需完成迁移前后的IAB-donor间的信息交互即可，从而即可直接进行迁移。
本公开中IAB-donor，在执行IAB-node迁移前，首先确定IAB-node已执行迁移的信息，若确定该IAB-node已执行了至少一次部分迁移，那么即可首先获取IAB-node关联的第一迁移信息，进而基于该第一迁移信息对该IAB-node进行迁移。由此，可靠实现了对IAB-node的多次连续迁移。
请参见图5，图5是本公开实施例提供的另一种迁移的方法的流程示意图，该方法由F1terminatingIAB-donor执行。如图5所示，该方法可以包括但不限于如下步骤：
步骤501，在执行IAB-node迁移前，确定IAB-node已执行迁移的信息。
步骤501的具体实现过程，可以参照本公开任一实施例的详细描述，此处不再赘述。
步骤502，响应于IAB-node已执行了至少一次部分迁移，接收IAB-node发送的与IAB-node关联的第一迁移信息。
可选的，第一迁移信息可以包括用于指示目标IAB-donor的信息。其中，可用于指示目标IAB-donor的信息的可实现形式，可以参照本公开任一实施例的详细描述，此处不再赘述。
可选的，第一迁移信息，还可以包括用于指示IAB-MT的标识信息。由此，F1 terminating IAB-donor可根据该IAB-MT的标识信息确定要迁移的IAB-node。
其中，用于指示IAB-MT的标识信息可以包括以下至少之一：IAB-MT在F1终结的IAB-donor上的标识信息；IAB-MT的上下文ID；IAB-MT在核心网的标识信息；及IAB-node的标识等等。其中，上述指示IAB-MT的各个标识信息的具体实现形式可以参照本公开任一实施例的详细描述，此处不再赘述。
本公开中，F1 terminatingIAB-donor在执行IAB-node迁移前，可以确定IAB-node已执行迁移的信息，若确定IAB-node已执行了至少一次部分迁移，则可以接收IAB-node发送的与其关联的第一迁移信息。
可选的，F1 terminatingIAB-donor可以通过F1应用协议(Application Protocol，AP)消息，接收IAB-node发送的第一迁移信息。比如，F1 terminatingIAB-donor可以通过gNB-DU配置更新(CONFIGURATION UPDATE)消息接收IAB-node发送的第一迁移信息，或者，也可以通过其他的F1AP消息来接收第一迁移信息，本公开对此不做限定。
本公开中F1 terminatingIAB-donor接收的第一迁移信息，可以是IAB-node在执行了至少一次部分迁移后，再次执行迁移前主动发送的；或者，也可以为F1 terminatingIAB-donor在确定IAB-node已经执行过至少一次部分迁移后，向IAB-node发送了第一迁移信息上报指令，以向IAB-node请求该迁移信息之后由IAB-node再发送的，本公开对此不做限定。
步骤503，根据第一迁移信息中包含的用于指示目标IAB-donor的信息，确定目标IAB-donor。
步骤504，向目标IAB-donor发送与IAB-node关联的第二迁移信息，以使目标IAB-donor根据第二迁移信息，确定需要执行迁移的IAB-node。
本公开中，F1 terminatingIAB-donor在确定了目标IAB-donor后，即可向目标IAB-donor发送第二迁移信息，以向目标IAB-donor指示要执行迁移的IAB-node。
可选的，第二迁移信息中可以包括IAB-MT的标识信息。从而target IAB-donor即可根据IAB-MT的标识信息确定要迁移的IAB-node，进而完成对该IAB-node的迁移。比如，target IAB-donor与F1terminatingIAB-donor之间进行该IAB-node的传输迁移管理(部分迁移)，或者，target IAB-donor与F1 terminatingIAB-donor之间进行UE迁移(即完全迁移)。
可选的，IAB-MT的标识信息包括以下各项至少之一：IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文ID；IAB-MT在核心网的标识信息；及IAB-node的标识。其中，上述指示IAB-MT的各个标识信息的具体实现形式可以参照本公开任一实施例的详细描述，此处不再赘述。
可选的，F1 terminatingIAB-donor可以通过XnAP消息,向目标IAB-donor发送第二迁移信息。在一些实施例中，XnAP消息可以是用于执行partial migration的IAB传输迁移管理请求(Transportmigrationmanagementrequest)；在另一些实施例，所述XnAP消息可以是用于执行full migration的UE迁移请求(migrationrequest)。
本公开中，F1 terminatingIAB-donor在执行IAB-node迁移前，首先确定IAB-node已执行迁移的信息，若确定该IAB-node已执行了至少一次部分迁移，那么即可接收IAB-node发送的第一迁移信息，进而根据该第一迁移信息，确定目标IAB-donor，之后再向目标IAB-donor发送第二迁移信息，以使目 标IAB-donor确定要进行迁移的IAB-node。从而，F1 terminatingIAB-donor通过接收IAB-node发送的第一迁移信息，即可确定该IAB-node要迁移至的目标IAB-donor，从而通过与目标IAB-donor进行信息交互，可靠实现了对IAB-node的多次连续迁移。
请参见图6，图6是本公开实施例提供的另一种迁移的方法的流程示意图，该方法由目标IAB-donor执行。如图6所示，该方法可以包括但不限于如下步骤：
步骤601，在执行IAB-node迁移前，确定IAB-node已执行迁移的信息。
其中，步骤601的具体实现过程，可以参照本公开任一实施例的详细描述，此处不再赘述。
步骤602，响应于IAB-node已执行了至少一次部分迁移，接收源非F1终结的IAB-donor发送的与所述IAB-node关联的第一迁移信息。
其中，源非F1终结的IAB-donor(source non-F1 terminatingIAB-donor)为该IAB-node在已执行了至少一次部分迁移后对应的non-F1 terminatingIAB-donor。
可选的，与IAB-node关联的第一迁移信息，还可以包括用于指示F1终结的IAB-donor的信息。其中，用于指示F1终结的IAB-donor的信息的实现形式，可以参照本公开任一实施例的详细描述，此处不再赘述。。
可选的，与IAB-node关联的第一迁移信息，还可以包括用于指示IAB-MT的标识信息。由此，target IAB-donor即可根据IAB-MT的标识信息确定要迁移的IAB-node，进而完成对该IAB-node的迁移。
可选的，IAB-MT的标识信息包括以下各项至少之一：IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文ID；IAB-MT在核心网的标识信息；及IAB-node的标识等等。其中以上各IAB-MT的标识信息的具体实现形式及含义可以参照本公开任一实施例的详细描述，此处不再赘述。
可选的，上述第一迁移信息中，还可以包括用于指示第一迁移信息来自非F1终结的IAB-donor的指示信息。
可选的，目标IAB-donor可以通过XnAP消息，接收源non-F1 terminating IAB-donor发送的第一迁移信息。
步骤603，根据用于指示F1终结的IAB-donor的信息，确定F1终结的IAB-donor。
步骤604，向F1终结的IAB-donor发送与IAB-node关联的第三迁移信息，以使F1终结的IAB-donor根据第三迁移信息，确定需要执行迁移的IAB-node。
可选的，第三迁移信息可以包括：用于指示IAB-MT的标识信息。其中，IAB-MT的标识信息可以为以下至少一项：IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文ID；IAB-MT在核心网的标识信息；及IAB-node的标识。其中以上各IAB-MT的标识信息的具体实现形式及含义可以参照本公开任一实施例的详细描述，此处不再赘述。
本公开中，目标IAB-donor在确定了F1 terminating IAB-donor后，即可向F1 terminating IAB-donor发送第三迁移信息，以向F1 terminating IAB-donor指示要执行迁移的IAB-node。从而F1terminating IAB-donor即可根据IAB-MT的标识信息确定要迁移的IAB-node，通过与目标IAB-donor进行交互，以完成该IAB-node的传输迁移管理(部分迁移)，或者，与F1 terminatingIAB-donor之间进行UE迁移(即完全迁移)。
可选的，目标IAB-donor可以通过XnAP消息,向F1 terminatingIAB-donor发送第三迁移信息。
本公开中，目标IAB-donor在执行IAB-node迁移前，首先确定IAB-node已执行迁移的信息，若确定该IAB-node已执行了至少一次部分迁移，那么即可接收源non-F1 terminatingIAB-donor发送的第一迁移信息，进而根据该第一迁移信息，确定F1 terminatingIAB-donor，之后再向F1terminatingIAB-donor发送第三迁移信息，以使F1 terminatingIAB-donor确定要进行迁移的IAB-node。从而，目标IAB-donor通过源non-F1 terminatingIAB-donor发送的第一迁移信息，即可确定IAB-node对应的F1 terminating IAB-donor，从而通过与F1 terminating IAB-donor进行信息交互，可靠实现了对IAB-node的多次连续迁移。
请参见图7，图7是本公开实施例提供的又一种迁移的方法的流程示意图，该方法由IAB node执行。如图7所示，该方法可以包括但不限于如下步骤：
步骤701，在执行迁移前，确定已执行迁移的信息。
步骤702，响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使 F1终结的IAB-donor根据第一迁移信息执行所述IAB-node迁移。
本公开中，IAB-node在执行迁移前，可以首先确定其已经执行迁移的信息，比如已经执行的迁移的类型，和/或次数等等。之后，若确定其已经执行了至少一次部分迁移时，在再次执行迁移前，需要保证要迁移至的目标IAB-donor与当前的F1 terminating IAB-donor之间可以进行信息交互，从而其即可向F1 terminating IAB-donor发送第一迁移信息，以使F1 terminating IAB-donor基于第一迁移信息，执行IAB-node的迁移。
可选的，第一迁移信息包括以下至少一项：用于指示目标IAB-donor的信息，及用于指示IAB移动终端MT的标识信息。
可选的，IAB-MT的标识信息包括以下各项至少之一：所述IAB-MT在F1终结的IAB-donor上的标识信息；所述IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文ID；所述IAB-MT在核心网的标识信息；及所述IAB-node的标识。
其中，上述各信息的具体含义及可实现形式，可以参照本公开任一实施例的详细描述，此处不再赘述。
可选的，IAB-node可以在在执行了至少一次部分迁移后，再次执行迁移前，主动向F1 terminating IAB-donor发送第一迁移信息；或者，也可以在收到F1 terminating IAB-donor发送的上报第一迁移信息的指令后，再将第一迁移信息发送给F1 terminating IAB-donor，本公开对此不做限定。
可选的，第一迁移信息，可以为源非F1终结的IAB-donor发送给IAB-node的，或者，也可以为目标IAB-donor发送给IAB-node的。
其中，源非F1终结的IAB-donor(source non-F1 terminating IAB-donor)为该IAB-node在已执行了至少一次部分迁移后对应的non-F1 terminating IAB-donor。
可选的，IAB-node可以通过无线资源控制(radio resource control，RCC)消息接收source non-F1terminating IAB-donor，或目标IAB-donor发送的第一迁移信息。
可选的，IAB-node接收的第一迁移信息，可以为source non-F1 terminating IAB-donor或目标IAB-donor主动发送给它的；或者，也可以为IAB-node在执行了至少一次部分迁移后，再次执行迁移前，向source non-F1 terminating IAB-donor或目标IAB-donor请求后获得的，本公开对此不做限定。
本公开中，IAB-node在执行迁移前，先确定其已执行迁移的信息，在确定其已经执行了至少一次部分迁移时，即向F1 terminating IAB-donor发送第一迁移信息，以使F1 terminating IAB-donor基于第一迁移信息与目标IAB-donor进行信息交互，从而可靠实现了IAB-node的连续多次迁移。
请参见图8，图8是本公开实施例提供的又一种迁移的方法的流程示意图，该方法由源非F1集成接入和回传的终结节点IAB-donor执行。如图8所示，该方法可以包括但不限于如下步骤：
步骤801，在执行IAB-node迁移前，确定IAB-node已执行迁移的信息。
其中，上述步骤801的具体实现方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
步骤802，响应于IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使目标IAB-donor根据第一迁移信息执行IAB-node迁移。
可选的，第一迁移信息包括以下至少一项：用于指示F1终结的IAB-donor的信息，用于指示IAB-MT的标识信息，及用于指示所述第一迁移信息来自非F1终结的IAB-donor的指示信息。
可选的，IAB-MT的标识信息包括以下各项至少之一：IAB-MT在F1终结的IAB-donor上的标识信息；IAB-MT在目标IAB-donor上的标识信息；IAB-MT的上下文ID；IAB-MT在核心网的标识信息；及IAB-node的标识。
本公开中，源non-F1 terminating IAB-donor在执行IAB-node迁移前，可以首先确定该IAB-node已执行的迁移信息，在确定该IAB-node已执行了至少一次部分迁移时，即可将用于指示该IAB-node对应的F1 terminating IAB-donor的信息发送给目标IAB-donor,以使目标IAB-donor根据用于指示F1terminating IAB-donor的信息，确定F1 terminating IAB-donor，进而与F1 terminating IAB-donor进行信息交互，以完成对IAB-node的迁移。
可选的，源non-F1 terminating IAB-donor可以通过XnAP消息向目标IAB-donor发送第一迁移信息。
本公开中，源non-F1 terminating IAB-donor在执行IAB-node迁移前，可以首先确定该IAB-node已执行的迁移信息，在确定该IAB-node已执行了至少一次部分迁移时，即可向目标IAB-donor发送第一迁移信息，从而使得目标IAB-donor确定F1 terminating IAB-donor。由此，在IAB-node已执行了至少 一次部分迁移的基础上，可以可靠实现对IAB-node的再次迁移。
请参见图9，图9是本公开实施例提供的一种迁移的方法的交互示意图。如图9所示，该方法可以包括但不限于如下步骤：
步骤901，IAB-node在执行迁移前，确定已执行迁移的信息。
步骤902，IAB-node在确定已执行了至少一次部分迁移时，确定第一迁移信息。
其中，IAB-node可以通过RRC消息，接收目标IAB-donor或者源non-F1 terminating IAB-donor发送的第一迁移信息。
步骤903，IAB-node向F1 terminating IAB-donor发送第一迁移信息。
步骤904，F1 terminating IAB-donor根据第一迁移信息，确定目标IAB-donor。
步骤905，F1 terminating IAB-donor向目标IAB-donor发送第二迁移信息。
其中，上述各步骤的具体实现方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
本公开中，IAB-node在执行了至少一次部分迁移后，再次执行迁移前，可以向F1 terminating IAB-donor发送第一迁移信息，从而使得F1 terminating IAB-donor根据第一迁移信息确定目标IAB-donor，进而向目标IAB-donor发送第二迁移信息，从而完成对该IAB-node的部分迁移或完全迁移。
请参见图10，图10是本公开实施例提供的另一种迁移的方法的交互示意图。如图10所示，该方法可以包括但不限于如下步骤：
步骤1001，源non-F1 terminating IAB-donor在执行IAB-node迁移前，确定IAB-node已执行迁移的信息。
步骤1002，响应于IAB-node已执行了至少一次部分迁移时，向目标IAB-donor发送第一迁移信息。
步骤1003，目标IAB-donor根据第一迁移信息，确定F1 terminating IAB-donor。
步骤1004，目标IAB-donor向F1 terminating IAB-donor发送第三迁移信息。
其中，上述各步骤的具体实现方式，可以参照本公开任一实施例的详细描述，此处不再赘述。
本公开中，源non F1 terminating IAB-donor在执行IAB-node迁移前，首先确定其已执行的迁移信息，在确定其已执行了至少一次部分迁移后，可以先向目标IAB-donor发送第一迁移信息，从而使得目标IAB-donor根据第一迁移信息确定F1 terminating IAB-donor，进而向F1 terminatingIAB-donor发送第三迁移信息，从而完成对该IAB-node的部分迁移或完全迁移。
请参见图11，图11为本公开实施例提供的一种通信装置的结构示意图。图11所示的通信装置1100可包括处理模块1101和收发模块1102。收发模块1102可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块1102可以实现发送功能和/或接收功能。
可以理解的是，通信装置1100可以是IAB-donor，也可以是IAB-donor中的装置，还可以是能够与IAB-donor匹配使用的装置。
通信装置1100在IAB-donor侧，其中：
处理模块1101，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
收发模块1102，用于响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；
所述处理模块1101，还用于根据所述第一迁移信息执行所述IAB-node迁移。
可选的，IAB-donor为F1终结的IAB-donor，收发模块1102，还用于：
接收所述IAB-node发送的与所述IAB-node关联的第一迁移信息。
可选的，第一迁移信息包括以下至少一项：
用于指示目标IAB-donor的信息，及用于指示IAB移动终端MT的标识信息。
可选的，收发模块1102，还用于向目标IAB-donor发送与所述IAB-node关联的第二迁移信息，以使所述目标IAB-donor根据所述第二迁移信息，确定需要执行迁移的所述IAB-node。
可选的，处理模块1101，还用于根据所述第一迁移信息中包含的用于指示目标IAB-donor的信息，确定目标IAB-donor。
可选的，所述第二迁移信息中包括:IAB-MT的标识信息。
可选的，IAB-donor为目标IAB-donor，收发模块1102，还用于接收源非F1终结的IAB-donor发送的与所述IAB-node关联的第一迁移信息。
可选的，第一迁移信息包括以下至少一项：
用于指示F1终结的IAB-donor的信息，用于指示IAB-MT的标识信息，及用于指示所述第一迁移信息来自非F1终结的IAB-donor的指示信息。
可选的，收发模块1102，还用于向F1终结的IAB-donor发送与所述IAB-node关联的第三迁移信息，以使所述F1终结的IAB-donor根据所述第三迁移信息，确定需要执行迁移的所述IAB-node。
可选的，所述处理模块1101，还用于根据所述用于指示F1终结的IAB-donor的信息，确定所述F1终结的IAB-donor。
可选的，第三迁移信息，包括：用于指示IAB-MT的标识信息。
可选的，所述用于指示目标IAB-donor的信息或所述用于指示F1终结的IAB-donor的信息包括下一代无线接入网NG-RAN节点标识和/或传输网络的地址信息。
可选的，所述IAB-MT的标识信息包括以下各项至少之一：
所述IAB-MT在F1终结的IAB-donor上的标识信息；
所述IAB-MT在目标IAB-donor上的标识信息；
所述IAB-MT的上下文ID；
所述IAB-MT在核心网的标识信息；及
所述IAB-node的标识。
或者，通信装置1100在IAB-node侧，其中：
处理模块1101，用于在执行迁移前，确定已执行迁移的信息；
收发模块802，用于响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使所述F1终结的IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
可选的，第一迁移信息包括以下至少一项：
用于指示目标IAB-donor的信息，及用于指示IAB移动终端MT的标识信息。
可选的，收发模块1102，还用于：
接收源非F1终结的IAB-donor发送的所述第一迁移信息；或者，
接收所述目标IAB-donor发送的所述第一迁移信息。
或者，通信装置1100在源non-F1 terminatingIAB-donor侧，其中：
处理模块1101，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
收发模块1102，用于响应于所述IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使所述目标IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
可选的，第一迁移信息包括以下至少一项：
用于指示F1终结的IAB-donor的信息，用于指示IAB-MT的标识信息，及用于指示所述第一迁移信息来自非F1终结的IAB-donor的指示信息。
可选的，IAB-MT的标识信息包括以下各项至少之一：
所述IAB-MT在F1终结的IAB-donor上的标识信息；
所述IAB-MT在目标IAB-donor上的标识信息；
所述IAB-MT的上下文ID；
所述IAB-MT在核心网的标识信息；及
所述IAB-node的标识。
本公开中，通信装置在IAB-node执行再次迁移前，先同步IAB-node的第一迁移信息，以基于第一迁移信息实现FI terminatingIAB-donor与目标IAB-donor间的信息交互，从而可靠实现了IAB-node的连续多次迁移。
请参见图12，图12是本公开实施例提供的另一种通信装置的结构示意图。通信装置1200可以是IAB-donor，也可以是支持IAB-donor实现上述方法的芯片、芯片系统、或处理器等。或者，也可以以是IAB-node，也可以是支持IAB-node实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置1200可以包括一个或多个处理器1201。处理器1201可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控 制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置1200中还可以包括一个或多个存储器1202，其上可以存有计算机程序1204，处理器1201执行所述计算机程序1204，以使得通信装置1200执行上述方法实施例中描述的方法。可选的，所述存储器1202中还可以存储有数据。通信装置1200和存储器1202可以单独设置，也可以集成在一起。
可选的，通信装置1200还可以包括收发器1205、天线1206。收发器1205可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器1205可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置1200中还可以包括一个或多个接口电路1207。接口电路1207用于接收代码指令并传输至处理器1201。处理器1201运行所述代码指令以使通信装置1200执行上述方法实施例中描述的方法。
通信装置1200为IAB-donor，收发器1205用于执行图4至图6中的收发步骤，处理器1201用于执行图4至图6中的处理步骤。
通信装置1200为IAB-node，收发器1205用于执行图7中的收发步骤，处理器1201用于执行图7中的处理步骤。
在一种实现方式中，处理器1201中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器1201可以存有计算机程序1203，计算机程序1203在处理器1201上运行，可使得通信装置1200执行上述方法实施例中描述的方法。计算机程序1203可能固化在处理器1201中，该种情况下，处理器1201可能由硬件实现。
在一种实现方式中，通信装置1200可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本公开中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是网络设备或者智能中继，但本公开中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图12的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
对于通信装置可以是芯片或芯片系统的情况，可参见图13所示的芯片的结构示意图。图13所示的芯片包括处理器1301和接口1302。其中，处理器1301的数量可以是一个或多个，接口1302的数量可以是多个。
对于芯片用于实现本公开实施例中终端设备的功能的情况。
可选的，芯片还包括存储器1303，存储器1303用于存储必要的计算机程序和数据。
本领域技术人员还可以了解到本公开实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用， 可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本公开实施例保护的范围。
本公开还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本公开还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本公开实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序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，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(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。所述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成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本公开中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本公开实施例的范围，也表示先后顺序。
本公开中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本公开不做限制。在本公开实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本公开中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本公开并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本公开中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本公开中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
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公开的范围。
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。
以上所述，仅为本公开的具体实施方式，但本公开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公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种迁移的方法，其特征在于，由集成接入和回传的终止节点IAB-donor执行，所述方法包括：
    在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
    响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；
    根据所述第一迁移信息执行所述IAB-node迁移。
  2. 如权利要求1所述的方法，其特征在于，所述获取与所述IAB-node关联的第一迁移信息，包括：
    F1终结的IAB-donor接收所述IAB-node发送的与所述IAB-node关联的第一迁移信息。
  3. 如权利要求2所述的方法，其特征在于，所述第一迁移信息包括以下至少一项：
    用于指示目标IAB-donor的信息；
    用于指示IAB移动终端MT的标识信息。
  4. 如权利要求3所述的方法，其特征在于，所述方法还包括：
    所述FI终结的IAB-donor向目标IAB-donor发送与所述IAB-node关联的第二迁移信息，以使所述目标IAB-donor根据所述第二迁移信息，确定需要执行迁移的所述IAB-node。
  5. 如权利要求4所述的方法，其特征在于，所述方法还包括：
    根据所述第一迁移信息中包含的用于指示目标IAB-donor的信息，确定目标IAB-donor。
  6. 如权利要求4所述的方法，其特征在于，所述第二迁移信息中包括:IAB-MT的标识信息。
  7. 如权利要求1所述的方法，其特征在于，所述获取与所述IAB-node关联的第一迁移信息，包括：
    目标IAB-donor接收源非F1终结的IAB-donor发送的与所述IAB-node关联的第一迁移信息。
  8. 如权利要求7所述的方法，其特征在于，所述第一迁移信息包括以下至少一项：
    用于指示F1终结的IAB-donor的信息，用于指示IAB-MT的标识信息，及用于指示所述第一迁移信息来自非F1终结的IAB-donor的指示信息。
  9. 如权利要求8所述的方法，其特征在于，所述方法还包括：
    所述目标IAB-donor向F1终结的IAB-donor发送与所述IAB-node关联的第三迁移信息，以使所述F1终结的IAB-donor根据所述第三迁移信息，确定需要执行迁移的所述IAB-node。
  10. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    所述目标IAB-donor根据所述用于指示F1终结的IAB-donor的信息，确定所述F1终结的IAB-donor。
  11. 如权利要求10所述的方法，其特征在于，所述第三迁移信息，包括：用于指示IAB-MT的标识信息。
  12. 如权利要求3或8所述的方法，其特征在于，
    所述用于指示目标IAB-donor的信息或所述用于指示F1终结的IAB-donor的信息包括下一代无线接入网NG-RAN节点标识、小区标识和/或传输网络的地址信息。
  13. 如权利要求12所述的方法，其特征在于，所述IAB-MT的标识信息包括以下各项至少之一：
    所述IAB-MT在F1终结的IAB-donor上的标识信息；
    所述IAB-MT在目标IAB-donor上的标识信息；
    所述IAB-MT的上下文标识ID；
    所述IAB-MT在核心网的标识信息；
    所述IAB-node的标识。
  14. 一种迁移的方法，其特征在于，由集成接入和回传的中继节点IAB-node执行，所述方法包括：
    在执行迁移前，确定所述IAB-node已执行迁移的信息；
    响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使所述F1终结的IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
  15. 如权利要求14所述的方法，其特征在于，所述第一迁移信息包括以下至少一项：
    用于指示目标IAB-donor的信息；
    用于指示IAB移动终端MT的标识信息。
  16. 如权利要求15所述的方法，其特征在于，所述方法还包括：
    接收源非F1终结的IAB-donor发送的所述第一迁移信息；或者，
    接收所述目标IAB-donor发送的所述第一迁移信息。
  17. 如权利要求14或16所述的方法，其特征在于，所述IAB-MT的标识信息包括以下至少之一：
    所述IAB-MT在F1终结的IAB-donor上的标识信息；
    所述IAB-MT在目标IAB-donor上的标识信息；
    所述IAB-MT的上下文ID；
    所述IAB-MT在核心网的标识信息；
    所述IAB-node的标识。
  18. 一种迁移的方法，其特征在于，由源非F1集成接入和回传的终结节点IAB-donor执行，所述方法包括：
    在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
    响应于所述IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使所述目标IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
  19. 如权利要求18所述的方法，其特征在于，所述第一迁移信息包括以下至少一项：
    用于指示F1终结的IAB-donor的信息，用于指示IAB-MT的标识信息，及用于指示所述第一迁移信息来自非F1终结的IAB-donor的指示信息。
  20. 如权利要求19所述的方法，其特征在于，所述IAB-MT的标识信息包括以下各项至少之一：
    所述IAB-MT在F1终结的IAB-donor上的标识信息；
    所述IAB-MT在目标IAB-donor上的标识信息；
    所述IAB-MT在核心网的标识信息；及
    所述IAB-node的标识。
  21. 一种IAB-donor，其特征在于，包括：
    处理模块，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁移的信息；
    收发模块，用于响应于所述IAB-node已执行了至少一次部分迁移，获取与所述IAB-node关联的第一迁移信息；
    所述处理模块，还用于根据所述第一迁移信息执行所述IAB-node迁移。
  22. 一种IAB-node，其特征在于，包括：
    处理模块，用于在执行迁移前，确定已执行迁移的信息；
    收发模块，用于响应于已执行了至少一次部分迁移，向F1终结的IAB-donor发送第一迁移信息，以使所述F1终结的IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
  23. 一种源non-F1 Terminating IAB-donor，其特征在于，包括：
    处理模块，用于在执行集成接入和回传的中继节点IAB-node迁移前，确定所述IAB-node已执行迁 移的信息；
    收发模块，用于响应于所述IAB-node已执行了至少一次部分迁移，向目标IAB-donor发送第一迁移信息，以使所述目标IAB-donor根据所述第一迁移信息执行所述IAB-node迁移。
  24. 一种通信系统，其特征在于，所述通信系统包括IAB-donor、IAB-node及源non-F1 Terminating IAB-donor，所述IAB-donor用于执行如权利要求1-13中任一项所述的方法，所述IAB-node用于执行如权利要求14-17中任一项所述的方法，所述源non-F1 Terminating IAB-donor用于执行如权利要求18-20任一项所述的方法。
  25. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1至13中任一项所述的方法，或者执行如权利要求14至17中任一项所述的方法，或者执行如权利要求18至20中任一项所述的方法。
  26. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1至13中任一项所述的方法被实现，或者使如权利要求14至17中任一项所述的方法被实现，或者使如权利要求18至20中任一项所述的方法被实现。
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