Configuration information sending method and apparatus, configuration information receiving method and apparatus, and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a configuration information sending method and apparatus, a configuration information receiving method and apparatus, and a device. The configuration information sending method in the embodiments of the present application comprises: a source node sending node configuration information to a first node, wherein the node configuration information comprises first configuration information associated with a second node, the first node comprises a first candidate node or a target node, and the second node comprises a second candidate node; and the first configuration information comprises at least one of the following: a data forwarding address, and identity information of a terminal.

Description

Configuration information sending method, receiving method, device and equipment

[0001] Cross-references

[0002] This disclosure claims priority to Chinese patent application No. 2024102165727, filed on February 27, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a configuration information sending method, receiving method, device and equipment. Background Art

[0004] In some communication scenarios, continuous handover processes may occur, such as continuous inter-CU (Centralized Unit) Layer 1 / Layer 2-triggered mobility (LTM) processes. This is referred to as continuous inter-CU LTM processes. After performing a cell change, the node corresponding to the new serving cell does not continue the mobility preparation process. This prevents the node corresponding to the new serving cell from obtaining the configuration information of other candidate nodes, affecting handover performance and resulting in poor handover performance. Summary of the Invention

[0005] The embodiments of the present application provide a configuration information sending method, receiving method, apparatus, and device, which can solve the problem of low switching performance.

[0006] In a first aspect, a method for sending configuration information is provided, comprising:

[0007] The source node sends node configuration information to the first node, where the node configuration information includes first configuration information associated with the second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node;

[0008] The first configuration information includes at least one of the following:

[0009] Data forwarding address;

[0010] Identity information of the terminal.

[0011] In a second aspect, a method for receiving configuration information is provided, comprising:

[0012] The first node receives node configuration information sent by a source node, where the node configuration information includes first configuration information associated with a second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node;

[0013] The first configuration information includes at least one of the following:

[0014] Data forwarding address;

[0015] Identity information of the terminal.

[0016] According to a third aspect, a configuration information sending device is provided, comprising:

[0017] A first sending module, configured to send node configuration information to a first node, the node configuration information including first configuration information associated with a second node, the first node including a first candidate node or a target node, and the second node including a second candidate node;

[0018] The first configuration information includes at least one of the following:

[0019] Data forwarding address;

[0020] Identity information of the terminal.

[0021] In a fourth aspect, a configuration information receiving device is provided, comprising:

[0022] A first receiving module is configured to receive node configuration information sent by a source node, wherein the node configuration information includes first configuration information associated with a second node, the first node corresponding to the apparatus includes a first candidate node or a target node, and the second node includes a second candidate node;

[0023] The first configuration information includes at least one of the following:

[0024] Data forwarding address;

[0025] Identity information of the terminal.

[0026] In a fifth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the configuration information sending method provided in the embodiment of the present application are implemented, or when the program or instruction is executed by the processor, the steps of the configuration information receiving method provided in the embodiment of the present application are implemented.

[0027] In the sixth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send node configuration information to a first node, the node configuration information includes first configuration information associated with a second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and identity information of the terminal.

[0028] In the seventh aspect, another network side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive node configuration information sent by a source node, the node configuration information includes first configuration information associated with a second node, the first node corresponding to the communication device includes a first candidate node or a target node, and the second node includes a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and the identity information of the terminal.

[0029] In an eighth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the configuration information sending method provided in the embodiment of the present application are implemented, or when the program or instruction is executed by a processor, the steps of the configuration information receiving method provided in the embodiment of the present application are implemented.

[0030] In the ninth aspect, a wireless communication system is provided, including: a source node and a first node, the source node can be used to execute the steps of the configuration information sending method provided in the embodiment of the present application, and the first node can be used to execute the steps of the configuration information receiving method provided in the embodiment of the present application.

[0031] In the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a program or instruction to implement the configuration information sending method provided in the embodiment of the present application, or the processor is used to run a program or instruction to implement the configuration information receiving method provided in the embodiment of the present application.

[0032] In the eleventh aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the configuration information sending method provided in the embodiment of the present application, or the computer program / program product is executed by at least one processor to implement the steps of the configuration information receiving method provided in the embodiment of the present application.

[0033] In an embodiment of the present application, a source node sends node configuration information to a first node, the node configuration information including first configuration information associated with a second node, the first node including a first candidate node or a target node, and the second node including a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and terminal identity information. By sending the node configuration information to the first node, the first candidate node or the target node can obtain the first configuration information associated with other candidate nodes. For the target node, this can prevent the target node from being affected by the inability to obtain configuration information of other candidate nodes during continuous switching. For the first candidate node, this can prevent the inability to obtain configuration information of other candidate nodes during continuous switching after the first candidate node becomes the target node, thereby improving switching performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0035] FIG2 is a flowchart of a method for sending configuration information provided in an embodiment of the present application;

[0036] FIG3 is a flowchart of a method for receiving configuration information provided in an embodiment of the present application;

[0037] FIG4 is a schematic diagram of a switching provided by an embodiment of the present application;

[0038] FIG5 is a structural diagram of a configuration information sending device provided in an embodiment of the present application;

[0039] FIG6 is a structural diagram of a configuration information receiving device provided in an embodiment of the present application;

[0040] FIG7 is a structural diagram of a communication device provided in an embodiment of the present application;

[0041] FIG8 is a structural diagram of a network-side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0043] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0044] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0045] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. thGeneration, 6G) communication system.

[0046] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, vehicle-mounted controller, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0047] The network-side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function, or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP), CU, Distributed Unit (DU) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0048] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0049] In some embodiments, data forwarding during the handover process may include at least one of the following:

[0050] Downlink (DL) data forwarding, uplink (UL) data forwarding;

[0051] Among them, DL data forwarding may include the following:

[0052] Once the downlink user data packet starts forwarding, the source node will always use the same forwarding channel to forward the user data.

[0053] For any Quality of Service (QoS) flow that the target node receives data for forwarding, and the DRB DL forwarding channel of the Data Radio Bearer (DRB) mapped to this QoS flow has been established, any new data packets of this QoS flow should be forwarded as Packet Data Convergence Protocol (PDCP) Service Data Unit (SDU) using the relevant DRB DL forwarding channel.

[0054] For DRBs that need to preserve the serial number (SN) status, the source node will forward all downlink PDCP SDUs that have not been acknowledged by the terminal to the target node using the DRB DL forwarding channel in sequence (the order of the SN of the PDCP PDU associated with the PDCP SDU).

[0055] For the QoS flow of data forwarding received by the target node, and its associated DL PDU session forwarding tunnel is established, the source node will forward the SDAP SDUs received from the UPF.

[0056] Among them, UL data forwarding may include the following:

[0057] Once the uplink user data packet of the DRB that needs to preserve the SN state begins to be forwarded, the source node may include at least one of the following actions:

[0058] If the source node does not receive the uplink forwarding request from the target node, or the target node does not request uplink data forwarding of the relevant bearer during the handover preparation step, the source node will discard the received out-of-order uplink PDCP PDUs.

[0059] If the source node receives an uplink forwarding request from the target node, including PDCP SDUs corresponding to user data of the QoS flow where QoS flow remapping occurs before switching but the source node has not yet received the Service Data Adaptation Protocol (SDAP) end mark, the source node needs to forward this data to the target node using the corresponding DRB UL forwarding tunnel.

[0060] For the uplink SDAP SDUs of a PDU Session, if the QoS flow is remapped before the switch and the SDAP end market has not been received by the source node, and the QoS flow of the DRB received by the source node is remapped, once the UL user data packet starts to be forwarded, the source node can use the corresponding PDU Session uplink forwarding tunnel for forwarding.

[0061] The following, in conjunction with the accompanying drawings, describes in detail a configuration information sending method, receiving method, apparatus and device provided by the embodiments of the present application through some embodiments and their application scenarios.

[0062] Please refer to FIG2 , which is a flowchart of a method for sending configuration information provided in an embodiment of the present application. As shown in FIG2 , the method includes the following steps:

[0063] Step 201: A source node sends node configuration information to a first node, where the node configuration information includes first configuration information associated with a second node. The first node includes a first candidate node or a target node, and the second node includes a second candidate node.

[0064] The first configuration information includes at least one of the following:

[0065] Data forwarding address;

[0066] Identity information of the terminal.

[0067] In the embodiment of the present application, the node may also be referred to as a network node or a network side device, specifically a CU or gNB.

[0068] In some implementations, the source node may be a CU or other network-side device. For LTM, the source node may be the node that performs the LTM preparation process, or may be the serving node of the terminal during or before the LTM execution process. That is, if the terminal changes its special cell (SpCell) after performing the LTM preparation process, the changed serving cell will be considered the source cell of the LTM during the next LTM execution.

[0069] The above-mentioned first node may be one or more nodes, for example, the first node may include multiple candidate nodes.

[0070] The second node may be one or more candidate nodes. For example, the source node may send the first configuration information of all other candidate nodes to each first node.

[0071] The data forwarding address may include at least one of the following:

[0072] QoS flow identifier, DRB identifier, uplink data forwarding address, downlink data forwarding address.

[0073] For example, the data forwarding address may include one or more of the following:

[0074] QoS flow identification;

[0075] Downlink data forwarding address at the PDU Session level;

[0076] Uplink data forwarding address at the PDU Session level;

[0077] DRB identifier and DRB-level downlink data forwarding address;

[0078] DRB identifier and DRB-level uplink data forwarding address.

[0079] The identity information of the above-mentioned terminal may be the identity information of the terminal at the above-mentioned second node, or the identity information of the candidate cell associated with the terminal at the second node, such as the identity identifier of the gNB / CU Xn interface corresponding to the candidate cell associated with the terminal at the second node (ie, NG-RAN node UE XnAP ID).

[0080] In an embodiment of the present application, since the node configuration information is sent to the first node, the first candidate node or the target node can obtain the first configuration information associated with other candidate nodes. For the target node, the switching performance of the target node can be prevented from being affected by the configuration information of other candidate nodes that cannot be obtained during the continuous switching process. For the first candidate node, the switching performance can be prevented from being affected by the configuration information of other candidate nodes that cannot be obtained during the continuous switching process after the first candidate node becomes the target node, thereby improving the switching performance. For example: in the continuous switching process, the target node will become the source node, and after the first candidate node becomes the target node, it will also become the source node, so that data can be forwarded to the new target node (the second candidate node becomes the new target node during the continuous switching process) before or during the switching process based on the above-mentioned data forwarding address, thereby reducing data loss during the switching process and improving the switching performance.

[0081] For another example, the first node can identify a more accurate terminal identity based on the identity information of the terminal, thereby providing a more accurate service to the terminal during the handover process, thereby improving handover performance.

[0082] It should be noted that, in an embodiment of the present application, the above-mentioned first configuration information may not include the identity information of the above-mentioned terminal, and the identity information of the terminal may be indicated or pre-indicated in other ways, and the above-mentioned first configuration information may also not include the above-mentioned data forwarding address, and the data forwarding address may be indicated or pre-indicated in other ways.

[0083] As an optional implementation manner, the node configuration information further includes the first configuration information associated with the first node.

[0084] In this embodiment, in addition to sending the first configuration information of the second node to the first node, the first configuration information of the first node can also be sent to the first node, so that the first node can obtain the configuration information of all nodes, and the first node can perform more reliable switching.

[0085] As an optional implementation, the method further includes:

[0086] The source node receives second configuration information sent by at least one of the first node and the second node;

[0087] The second configuration information includes at least one of the following:

[0088] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for LTM, wherein the PDU session resources include at least one of the following:

[0089] PDU session identifier (PDU Session ID), data forwarding address.

[0090] The candidate configuration identifier is used to indicate the candidate configuration of the candidate node or the candidate cell associated with the candidate node, such as the LTM candidate configuration.

[0091] The candidate cell identifier is an identifier of a candidate cell associated with the first node or the second node.

[0092] The data forwarding address may include one or more of the following:

[0093] QoS flow identification;

[0094] Downlink data forwarding address at the PDU Session level;

[0095] Uplink data forwarding address at the PDU Session level;

[0096] DRB identifier and DRB-level downlink data forwarding address;

[0097] DRB identifier and DRB-level uplink data forwarding address.

[0098] The configuration information of the candidate cells of the LTM may include one or more of the following:

[0099] Random Access Channel (RACH) configuration information, which is used by the terminal to perform early synchronization to the candidate cell;

[0100] Transmission Configuration Indicator (TCI) status configuration information;

[0101] Radio bearer configuration information;

[0102] Layer 3 (L3) measurement configuration information;

[0103] Cell group configuration information, the cell group configuration information may include: LTM channel state information (CSI) reporting configuration information.

[0104] In the above implementation, since the source node obtains the second configuration information of the first node or the second node, it is convenient for the source node to provide the first configuration information to the first node and also convenient for the source node to perform terminal switching, thereby improving switching performance.

[0105] It should be noted that at least one item included in the above-mentioned second configuration information may also be pre-configured or agreed upon by protocol, which is not limited to this. For example, the data forwarding address in the second configuration information may be pre-configured or obtained through other means.

[0106] In addition, the second configuration information may be actively sent by the first node or the second node, or may be sent by the first node or the second node upon request of the source node.

[0107] In some embodiments, the method may further include:

[0108] The source node sends a first request to at least one of the first node and the second node;

[0109] The source node receives second configuration information sent by at least one of the first node and the second node, including:

[0110] The source node receives a first response sent by at least one of the first node and the second node, where the first response includes the second configuration information;

[0111] The first request includes at least one of the following:

[0112] Candidate cell identifier;

[0113] The key of the candidate cell;

[0114] identity information of the terminal at the source node;

[0115] Radio resource management (RRM) configuration of the terminal;

[0116] QoS flow to DRB mapping rules;

[0117] PDU session related information;

[0118] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0119] LTM candidate configuration identifier of the candidate cell;

[0120] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0121] LTM CSI resource configuration information;

[0122] Request information for requesting random access resources of a candidate cell;

[0123] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0124] Refer to the configuration information.

[0125] The first request may be a handover request (HANDOVER REQUEST), or other newly introduced signaling, such as an LTM request (LTM REQUEST).

[0126] The key of the above candidate cell can be expressed as the key KgNB*.

[0127] The above-mentioned PDU session related information may be related information used to describe the PDU session.

[0128] The indication information for indicating that the purpose of the first request is to configure LTM configuration information between nodes can be understood as indicating that the source node sends the first request in order to configure LTM configuration information between nodes, such as to configure inter-CU LTM configuration information.

[0129] In an embodiment of the present application, the LTM candidate configuration includes LTM configuration information of one or more candidate cells.

[0130] The request information for requesting random access resources of the candidate cell may be used to request physical random access channel (PRACH) resources of the candidate cell.

[0131] The above-mentioned reference configuration information may be the reference configuration information used by the node in the LTM candidate configuration, that is, the relevant operations are performed with the reference configuration information as a reference.

[0132] In the above implementation, since the first request is sent to the first node or the second node, the first node or the second node can exchange the second configuration information with the source node, so that subsequent switching is faster.

[0133] It should be noted that all or part of the content included in the above-mentioned first request may be explicitly carried or implicitly indicated, and the above-mentioned at least one item included in the above-mentioned first request may also be pre-configured or agreed upon in the protocol.

[0134] As an optional implementation, the above method further includes:

[0135] The source node sends a second request to at least one of the first node and the second node, where the second request is used to request at least one of the following:

[0136] Reference configuration information, Channel State Information Reference Signal (CSI-RS) configuration information, and Synchronization Signal Block (SSB) configuration information.

[0137] Among them, after receiving the above-mentioned second request, the above-mentioned first node or second node returns a second response to the source node, that is, returns at least one of the above-mentioned reference configuration information, CSI-RS configuration information, and SSB configuration information.

[0138] In this implementation, it is possible to request at least one of the above-mentioned reference configuration information, CSI-RS configuration information, and SSB configuration information through a separate process, which is conducive to generating the second configuration information in the subsequent LTM switching preparation process.

[0139] As an optional implementation manner, the source node sending the node configuration information to the first node includes at least one of the following:

[0140] In an LTM preparation process, the source node sends node configuration information to a first node, the first node including a candidate node, and the source node including: a node that performs the LTM preparation process;

[0141] During an LTM execution process, the source node sends node configuration information to a first node, the first node including the target node, the source node including: a service node of a terminal before or during the LTM execution process;

[0142] When LTM is completed, the source node sends node configuration information to the first node, where the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal closest to the LTM execution process or before the LTM execution process.

[0143] The above-mentioned LTM preparation process may also be referred to as the LTM preparation process, which may be a process before the source node generates an RRC reconfiguration message including LTM configuration information, or a process before the source node sends an RRC Reconfiguration message including LTM configuration information to the terminal.

[0144] For example: when the node (such as the source gNB) corresponding to the first service cell (i.e., the service cell that performs LTM preparation) decides to perform an inter-CU LTM cell change, the node requests candidate configuration cells from other candidate nodes. The other candidate configuration cells will determine whether to receive the request. If the request is received, the candidate configuration cells, data forwarding address information and other information will be sent to the node corresponding to the first service cell. After the node corresponding to the first service cell obtains the data forwarding address of the candidate cell receiving the request, it sends the obtained data forwarding addresses corresponding to all candidate cells / candidate nodes to all candidate nodes through the first signaling; or sends the data forwarding addresses corresponding to the candidate cells / other candidate nodes associated with other candidate nodes to the candidate nodes. The first signaling is used to request the candidate node to update the generated second configuration information, and the first signaling includes a handover modification (HANDOVER MODIFICATION) or LTM modification (LTM MODIFICATION) message or other messages. In this way, since the source node notifies the first node of the data forwarding address of the second node during the LTM preparation process, all candidate nodes can obtain the data forwarding addresses of all other candidate nodes during the LTM preparation process. Then, when the candidate node becomes the service node of the terminal, it can perform advance data forwarding or data forwarding during the switching process.

[0145] The above-mentioned LTM execution process may be a process in which the terminal switches to the target node, or a process in which the terminal leaves the source node, or a process before the terminal sends an RRC reconfiguration complete (RRCReconfigurationComplete) message to the target node.

[0146] For example: during the LTM preparation process, the source node corresponding to the first service cell can obtain the data forwarding addresses of all candidate cells / candidate nodes. When the source node decides to trigger the terminal to perform cell switching, the source node sends a cell switch command to the terminal, and at the same time sends the data forwarding addresses corresponding to all candidate cells / candidate nodes to the target node through the second signaling; or sends the data forwarding addresses corresponding to the candidate cells / other candidate nodes associated with other candidate nodes to the target node. The second signaling is used to notify the target node that the terminal is to switch to the target cell in the target node, and the second signaling includes a cell switch notification message or other messages. In this way, the source node can notify the target node of the data forwarding addresses of other candidate nodes during the LTM execution process, so that the target node can obtain the data forwarding addresses of all other candidate nodes during the LTM execution process. Then, when the terminal switches successfully, the target node, called the service node, can perform early data forwarding or data forwarding during the next switching process.

[0147] The above LTM completion may be a successful terminal handover, or the terminal sending an RRC reconfiguration completion message to the target node.

[0148] For example: During the LTM preparation process, the source node corresponding to the first serving cell can obtain the data forwarding addresses of all candidate cells / candidate nodes. When the source node decides to trigger the terminal to perform cell switching, the source node sends a cell switch command to the terminal. When the terminal switches successfully, the source node sends the data forwarding addresses corresponding to all candidate cells / candidate nodes to the target node through a third signaling; or the source node sends the data forwarding addresses corresponding to the candidate cells / other candidate nodes associated with other candidate nodes to the target node. The third signaling is used to notify the target node of address-related information, and the third signaling includes an XN-U address indication (XN-U ADDRESS INDICATION) message or other messages. In this way, after the LTM is completed, the source node can notify the target node of the data forwarding addresses of other candidate nodes, so that the target can perform early data forwarding or data forwarding during the next switching process.

[0149] In some implementations, when the LTM is completed, the source node sending the node configuration information to the first node includes:

[0150] When the LTM is completed, the source node sends node configuration information to the first node based on the request sent by the first node.

[0151] In this implementation, it is possible to send the node configuration information to the first node based on the request after the LTM completes the sending. Since the sending is based on the request, it can be sent on demand to avoid signaling waste.

[0152] For example: during the LTM preparation process, the source node corresponding to the first service cell can obtain the data forwarding addresses of all candidate cells / candidate nodes. When the source node decides to trigger the terminal to perform cell switching, it sends a cell switch command to the terminal. When the terminal switches successfully, the target node requests the data forwarding address of the candidate node from the source node. After receiving the request, the source node sends the data forwarding addresses corresponding to all candidate cells / candidate nodes to the target node; or sends the data forwarding addresses corresponding to the candidate cells / other candidate nodes associated with other candidate nodes to the target node.

[0153] It should be noted that the above node configuration information may also be actively sent by the source node to the first node.

[0154] As an optional implementation manner, the first configuration information further includes at least one of the following:

[0155] LTM CSI reporting configuration, TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0156] The above-mentioned first configuration information includes the above-mentioned LTM CSI reporting configuration, so that the first node can obtain the LTM CSI reporting configuration of the second node, which is beneficial for the first node to obtain the CSI information related to the second node in advance, so as to update the LTM measurement-related reporting configuration information contained in the LTM candidate configuration information associated with the first node, so that the terminal can subsequently perform appropriate LTM measurement and reporting, thereby switching to a suitable target cell.

[0157] The above-mentioned first configuration information includes the above-mentioned TCI status information, so that the first node can obtain the TCI status information of the second node. In this way, when the first node becomes the node corresponding to the service cell, the TCI information associated with the LTM candidate cell can be determined, thereby instructing the terminal to activate the TCI information of the appropriate candidate cell to ensure the switching quality.

[0158] The above-mentioned first configuration information includes the above-mentioned random access configuration information, so that the first node can obtain the random access configuration information of the second node. In this way, when the first node becomes the node corresponding to the serving cell, the terminal can be commanded to perform early synchronization to the candidate cell, so that the terminal can perform cell switching without a RACH process, thereby reducing the switching delay.

[0159] The above-mentioned first configuration information includes the above-mentioned LTM candidate configuration identifier, so that the first node can obtain the LTM candidate configuration identifier of the second node, thereby obtaining the association between the LTM candidate configuration identifier and the data forwarding address / CSI resource information / TCI status information / random access configuration information, so that the correct data forwarding address / CSI resource information / TCI status information / random access configuration information can be associated with the LTM candidate configuration identifier.

[0160] As an optional implementation manner, the node configuration information further includes at least one of the following:

[0161] TCI status information, target cell identifier.

[0162] The above-mentioned TCI state information may be the TCI state corresponding to the terminal in the target cell, and the above-mentioned target cell identifier is the identifier information corresponding to the target cell in the target node to which the terminal switches.

[0163] In this implementation, when the LTM execution process sends node configuration information to the first node, the node configuration information further includes the above-mentioned TCI status information or the target cell identifier.

[0164] Since the node configuration information also includes the above-mentioned TCI status information or target cell identifier, the first node can complete the cell switching of the terminal more simply and quickly based on the TCI status information or target cell identifier.

[0165] As an optional implementation manner, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0166] a data forwarding address of the second node;

[0167] a data forwarding address of the candidate cell associated with the second node;

[0168] or,

[0169] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0170] a data forwarding address of the first node;

[0171] a data forwarding address of the candidate cell associated with the first node.

[0172] In this implementation, a node-level or candidate cell-level data forwarding address may be sent to the first node, so that the first node can better forward data.

[0173] As an optional implementation manner, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0174] identity information of the terminal at the second node;

[0175] identity information of a candidate cell associated with the terminal at the second node;

[0176] or,

[0177] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0178] identity information of the terminal at the first node;

[0179] Identity information of a candidate cell associated with the terminal at the first node.

[0180] In this implementation, node-level or candidate cell-level identity information may be sent to the first node, so that the first node and the second node can identify the correct terminal identity and thus provide services to the terminal.

[0181] As an optional implementation manner, the first node is one or more nodes, and for any first node, the second node includes all first candidate nodes except the first node.

[0182] The above-mentioned all first candidate nodes may be all candidate nodes except the first candidate node in the continuous handover, or may be all candidate nodes of the terminal except the first candidate node.

[0183] In this way, the first configuration information of all other first candidate nodes can be sent to any second node, so that during continuous switching, the first node can perform advance data forwarding or data forwarding during switching in response to cell changes.

[0184] In an embodiment of the present application, a source node sends node configuration information to a first node, wherein the node configuration information includes first configuration information associated with a second node, wherein the first node includes a first candidate node or a target node, and the second node includes a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and identity information of the terminal. In this way, since the node configuration information is sent to the first node, the first candidate node or the target node can obtain the first configuration information associated with other candidate nodes. For the target node, the switching performance of the target node can be prevented from being affected by the configuration information of other candidate nodes that cannot be obtained during the continuous switching process. For the first candidate node, the switching performance can be prevented from being affected by the configuration information of other candidate nodes that cannot be obtained during the continuous switching process after the first candidate node becomes the target node, thereby improving the switching performance.

[0185] Please refer to FIG3 , which is a flowchart of a method for receiving configuration information provided in an embodiment of the present application. As shown in FIG3 , the method includes the following steps:

[0186] Step 301: A first node receives node configuration information sent by a source node, where the node configuration information includes first configuration information associated with a second node, where the first node includes a first candidate node or a target node, and the second node includes a second candidate node.

[0187] The first configuration information includes at least one of the following:

[0188] Data forwarding address;

[0189] Identity information of the terminal.

[0190] Optionally, the node configuration information further includes the first configuration information associated with the first node.

[0191] Optionally, the method further includes:

[0192] The first node sends second configuration information to the source node;

[0193] The second configuration information includes at least one of the following:

[0194] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following:

[0195] PDU session identifier, data forwarding address.

[0196] Optionally, the method further includes:

[0197] The first node receives a first request sent by the source node;

[0198] The first node sending second configuration information to the source node includes:

[0199] The first node sends a first response to the source node, where the first response includes the second configuration information;

[0200] The first request includes at least one of the following:

[0201] Candidate cell identifier;

[0202] The key of the candidate cell;

[0203] identity information of the terminal at the source node;

[0204] Radio Resource Management (RRM) configuration of the terminal;

[0205] Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB);

[0206] PDU session related information;

[0207] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0208] LTM candidate configuration identifier of the candidate cell;

[0209] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0210] LTM channel state information CSI resource configuration;

[0211] Request information for requesting random access resources of a candidate cell;

[0212] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0213] Refer to the configuration information.

[0214] Optionally, the method further includes:

[0215] The first node receives a second request sent by the source node, where the second request is used to request at least one of the following:

[0216] Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

[0217] Optionally, the node configuration information received by the first node from the source node includes at least one of the following:

[0218] During the LTM preparation process, the first node receives node configuration information sent by a source node, the first node comprising a candidate node, and the source node comprising: a node that performs the LTM preparation process;

[0219] During the LTM execution process, the first node receives node configuration information sent by a source node, the first node including the target node, and the source node including: a service node of a terminal during the LTM execution process or before the LTM execution process;

[0220] When LTM is completed, the first node receives the node configuration information sent by the source node, the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

[0221] Optionally, when the LTM is completed, the first node receiving the node configuration information sent by the source node includes:

[0222] When the LTM is completed, the first node receives the node configuration information sent by the source node based on the request sent by the first node.

[0223] Optionally, the first configuration information further includes at least one of the following:

[0224] LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0225] Optionally, the node configuration information further includes at least one of the following:

[0226] TCI status information, target cell identifier.

[0227] Optionally, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0228] a data forwarding address of the second node;

[0229] a data forwarding address of the candidate cell associated with the second node;

[0230] or,

[0231] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0232] a data forwarding address of the first node;

[0233] a data forwarding address of the candidate cell associated with the first node.

[0234] Optionally, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0235] identity information of the terminal at the second node;

[0236] identity information of a candidate cell associated with the terminal at the second node;

[0237] or,

[0238] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0239] identity information of the terminal at the first node;

[0240] Identity information of a candidate cell associated with the terminal at the first node.

[0241] Optionally, the second nodes are all candidate nodes except the first node.

[0242] It should be noted that this embodiment is an implementation of the first node corresponding to the embodiment shown in Figure 2. Its specific implementation can refer to the relevant description of the embodiment shown in Figure 2. In order to avoid repeated description, this embodiment will not be repeated.

[0243] The following node takes gNB / CU as an example to illustrate the method provided for implementation of this application:

[0244] As shown in Figure 4, the following steps are included:

[0245] Step 1: The UE sends a Layer 3 measurement report to the source gNB / CU.

[0246] Step 2: The source gNB / CU determines the LTM candidate cells based on the Layer 3 measurement report and RRM information and performs the LTM preparation procedure.

[0247] Step 3: The source gNB / CU sends a first signaling request to the candidate gNB / CU to prepare resources for the UE to be handed over to the candidate gNB / CU via LTM. The first signaling request contains the necessary information for the candidate gNB / CU to prepare LTM. The first signaling request contains one or more of the following information:

[0248] Candidate cell ID;

[0249] The key of the candidate cell KgNB*;

[0250] UE's C-RNTI identity at the source gNB / CU;

[0251] UE RRM configuration;

[0252] The mapping rules of the current QoS flow to the DRB;

[0253] PDU Session related information;

[0254] Inter-CU LTM indication information, used to indicate that the request is for configuring inter-CU LTM configuration information;

[0255] LTM candidate configuration ID of the candidate cell;

[0256] The mapping relationship between LTM candidate configurations and candidate cell IDs;

[0257] LTM CSI resource configuration;

[0258] first request information, where the first request information is used to request a PRACH resource of a candidate cell;

[0259] second request information, where the second request information is used to request the candidate base station to generate a reference configuration based on the candidate cell;

[0260] Refer to the configuration information.

[0261] The source gNB / CU may request reference configuration information from the candidate gNB / CU before step 2 or 3. The source gNB / CU has requested CSI-RS / SSB configuration information from the candidate gNB / CU before step 2 or 3.

[0262] The first signaling may be a HANDOVER REQUEST, or other newly introduced signaling, such as an LTM REQUEST.

[0263] Step 4: The Candidate gNB / CU performs access control.

[0264] Step 5: If the candidate gNB / CU receives the LTM configuration request from the source gNB / CU, it sends a second signaling to the source gNB / CU in response to the first signaling. The second signaling can be HANDOVER REQUEST ACKNOWLEDGE / SN ADDITION REQUEST ACKNOWLEDGE or other newly introduced signaling, where the second signaling includes one or more of the following:

[0265] The unique Xn interface identity of the UE on this gNB node (i.e., NG-RAN node UE XnAP ID);

[0266] Candidate configuration identifier;

[0267] Candidate cell identifier;

[0268] Allowed PDU Session resources, the PDU Session resources including: PDU Session ID, or data forwarding address, the data forwarding address including one or more of the following: QoS flow identifier; PDU Session level downlink data forwarding address; PDU Session level uplink data forwarding address; DRB identifier and DRB level downlink data forwarding address; DRB identifier and DRB level uplink data forwarding address;

[0269] Configuration information of candidate cells for LTM, where the configuration information of candidate cells for LTM includes one or more of the following:

[0270] RACH configuration information, where the RACH configuration information is used by the UE to perform early synchronization;

[0271] TCI state configuration information;

[0272] Radio bearer configuration information;

[0273] L3 measurement configuration information;

[0274] Cell group configuration information, the cell group configuration information includes the following contents: LTM CSI reporting configuration information.

[0275] Step 6: After receiving the second signaling from the candidate gNB / CU, the source gNB / CU performs the following actions:

[0276] If the cells controlled by the source gNB / CU also include candidate cells of the UE, the source gNB / CU updates the underlying configuration information, such as the LTM CSI reporting configuration information, of the associated candidate cells based on the candidate cell information in the second signaling from the Candidate gNB / CU.

[0277] The source gNB / CU updates the LTM candidate configuration information based on the candidate cell information in the second signaling from the Candidate gNB / CU.

[0278] The source gNB / CU sends third signaling to other candidate gNBs / CUs. The third signaling includes configuration information of candidate cells associated with the other candidate gNBs / CUs or all candidate cells for which the second signaling was provided. Optionally, the third signaling also includes reference configuration information. The configuration information of the candidate cells includes one or more of the following:

[0279] LTM CSI reporting configuration;

[0280] TCI state information;

[0281] RACH configuration information;

[0282] LTM candidate configuration identifier;

[0283] The UE's Xn interface identity for the gNB / CU corresponding to the candidate cell (i.e., NG-RAN node UE XnAP ID)

[0284] Data forwarding address.

[0285] It should be noted that sending the data forwarding address or the identity information in the third signaling is a method of sending the data forwarding address or the identity information in this embodiment, which can be called implementation mode one.

[0286] Step 7: After receiving the third signaling, the candidate gNB / CU updates the corresponding candidate cell configuration information based on the information in the third signaling, such as updating the LTM CSI reporting configuration information, and stores the candidate cell configuration information or reference configuration information in the third signaling. The candidate gNB / CU sends the updated candidate cell configuration information to the source gNB / CU via the fourth signaling.

[0287] Step 8: The source gNB / CU generates an RRCReconfiguration message containing the LTM configuration and sends it to the UE.

[0288] Step 9: The UE sends an RRCReconfigurationComplete message in response to the source gNB / CU.

[0289] Step 10 / 11: If early data forwarding is allowed, the source gNB / CU selects one or more candidate gNB / CUs and sends an EARLY STATUS TRANSFER message to them to start early data forwarding.

[0290] Step 12a: Before receiving the cell handover command, the UE performs downlink synchronization on the candidate cell.

[0291] Step 12b: Upon receiving the cell handover command, the UE obtains the TA value of the candidate cell in advance based on the UE's timing advance (TA) measurement or based on a method triggered by a physical downlink control channel (PDCCH) command on the network side.

[0292] Step 13: The UE performs L1 measurement of the configured candidate cells and transmits an L1 measurement report to the gNB.

[0293] Step 14: The source gNB decides to perform inter-CU LTM cell handover.

[0294] Step 15: The source gNB sends a Medium Access Control Control Element (MAC CE) to the UE to trigger the UE to perform inter-CU LTM handover. The MAC CE carries the candidate configuration identifier of the target cell. The source gNB stops sending data to the UE.

[0295] Step 16: The source gNB sends a fifth signaling to the target gNB / CU, notifying the target gNB / CU that the UE is about to be handed over to the target gNB / CU. The fifth signaling includes one or more of the following:

[0296] Target cell ID;

[0297] TCI state ID;

[0298] Data forwarding addresses of other candidate gNBs / CUs or associated data forwarding addresses of candidate cells corresponding to other candidate gNBs / CUs, or data forwarding addresses associated with all candidate cells, optionally including the data forwarding address of the UE in the source cell;

[0299] The UE's Xn interface identity (NG-RAN node UE XnAP ID) of other candidate gNB / CU or the Xn interface identity associated with the candidate cell corresponding to other candidate gNB / CU or the Xn interface identity associated with all candidate cells.

[0300] It should be noted that sending the data forwarding address or the identity information in the fifth signaling is a method of sending the data forwarding address or the identity information in this embodiment, which can be called implementation mode two.

[0301] Step 17: The UE leaves the source cell and applies the candidate configuration associated with the target cell.

[0302] Step 18: If the UE does not have a valid TA value for the target cell, the UE performs a random access procedure to the target cell.

[0303] Step 19 / 20: The source gNB / CU sends an SN STATUS TRANSFER message to the target gNB / CU and starts late data forwarding.

[0304] Step 21: The UE sends an RRC Reconfiguration Complete message to the target cell to complete the LTM cell handover.

[0305] Step 22: The target gNB sends a PATH SWITCH REQUEST message to the AMF to trigger the core network to switch the downlink data path to the target gNB and establish a control plane interface with the target gNB.

[0306] Step 23: The core network switches the downlink data path to the target gNB. The UPF sends one or more "end marker" packets per PDU session / channel on the old path to the source gNB and then releases the user plane address to the source gNB.

[0307] Step 24: The AMF sends a PATH SWITCH REQUEST ACKNOWLEDGE message to acknowledge the target gNB’s PATH SWITCH REQUEST message.

[0308] Step 25: After receiving the PATH SWITCH REQUEST ACKNOWLEDGE message from the AMF, the target gNB / CU may send a UE CONTEXT RELEASE message to the source target cell to notify the source gNB to release the radio resources and control plane resources associated with the UE context (e.g., the source gNB does not have a candidate cell for the UE or the source cell is not a candidate cell for the UE). Alternatively, the target gNB / CU may send the sixth signaling to notify the source gNB that the UE handover is successful.

[0309] Step 26: The source gNB sends a seventh signaling message to the target gNB / CU, where the seventh signaling message is used to notify the target gNB / CU of the data forwarding addresses of other target gNBs. The seventh signaling message includes one or more of the following:

[0310] Data forwarding addresses of other candidate gNBs / CUs or associated data forwarding addresses of candidate cells corresponding to other candidate gNBs / CUs or associated data forwarding addresses of all candidate cells, optionally including the data forwarding address of the UE in the source cell

[0311] The UE's Xn interface identity (NG-RAN node UE XnAP ID) of other candidate gNB / CU or the Xn interface identity associated with the candidate cell corresponding to other candidate gNB / CU or the Xn interface identity associated with all candidate cells.

[0312] It should be noted that sending the data forwarding address or the identity information in the seventh signaling is a method of sending the data forwarding address or the identity information in this embodiment, which can be called implementation mode three.

[0313] In an embodiment of the present application, a method for transmitting data forwarding addresses between interfaces during a continuous inter-CU LTM process is provided, thereby ensuring data forwarding during a continuous inter-CU switching process and avoiding data loss.

[0314] The configuration information sending method provided in the embodiment of the present application can be executed by a configuration information sending device. In the embodiment of the present application, the configuration information sending device performing the configuration information sending method is taken as an example to illustrate the configuration information sending device provided in the embodiment of the present application.

[0315] The configuration information receiving method provided in the embodiment of the present application can be executed by a configuration information receiving device. In the embodiment of the present application, the configuration information receiving device performing the configuration information receiving method is taken as an example to illustrate the configuration information receiving device provided in the embodiment of the present application.

[0316] Please refer to FIG5 , which is a structural diagram of a configuration information sending device provided in an embodiment of the present application. As shown in FIG5 , the configuration information sending device 500 includes:

[0317] A first sending module 501 is configured to send node configuration information to a first node, where the node configuration information includes first configuration information associated with a second node, where the first node includes a first candidate node or a target node, and the second node includes a second candidate node;

[0318] The first configuration information includes at least one of the following:

[0319] Data forwarding address;

[0320] Identity information of the terminal.

[0321] Optionally, the node configuration information further includes the first configuration information associated with the first node.

[0322] Optionally, the device further comprises:

[0323] a receiving module, configured to receive second configuration information sent by at least one of the first node and the second node;

[0324] The second configuration information includes at least one of the following:

[0325] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following:

[0326] PDU session identifier, data forwarding address.

[0327] Optionally, the device further comprises:

[0328] a second sending module, configured to send a first request to at least one of the first node and the second node;

[0329] The receiving module is configured to receive a first response sent by at least one of the first node and the second node, where the first response includes the second configuration information;

[0330] The first request includes at least one of the following:

[0331] Candidate cell identifier;

[0332] The key of the candidate cell;

[0333] identity information of the terminal at the source node;

[0334] Radio Resource Management (RRM) configuration of the terminal;

[0335] Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB);

[0336] PDU session related information;

[0337] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0338] LTM candidate configuration identifier of the candidate cell;

[0339] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0340] LTM channel state information CSI resource configuration information;

[0341] Request information for requesting random access resources of a candidate cell;

[0342] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0343] Refer to the configuration information.

[0344] Optionally, the device further comprises:

[0345] The third sending module is configured to send a second request to at least one of the first node and the second node, where the second request is used to request at least one of the following:

[0346] Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

[0347] Optionally, the first sending module 501 is configured to perform at least one of the following:

[0348] During an LTM preparation process, node configuration information is sent to a first node, the first node comprising a candidate node, and the source node corresponding to the apparatus comprises: a node performing the LTM preparation process;

[0349] During the LTM execution process, node configuration information is sent to a first node, the first node including the target node, and the source node corresponding to the apparatus includes: a service node of a terminal during the LTM execution process or before the LTM execution process;

[0350] When LTM is completed, node configuration information is sent to the first node, the first node includes the target node, and the source node corresponding to the device includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

[0351] Optionally, when the LTM is completed, sending the node configuration information to the first node includes:

[0352] When the LTM is completed, node configuration information is sent to the first node based on the request sent by the first node.

[0353] Optionally, the first configuration information further includes at least one of the following:

[0354] LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0355] Optionally, the node configuration information further includes at least one of the following:

[0356] TCI status information, target cell identifier.

[0357] Optionally, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0358] a data forwarding address of the second node;

[0359] a data forwarding address of the candidate cell associated with the second node;

[0360] or,

[0361] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0362] a data forwarding address of the first node;

[0363] a data forwarding address of the candidate cell associated with the first node.

[0364] Optionally, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0365] identity information of the terminal at the second node;

[0366] identity information of a candidate cell associated with the terminal at the second node;

[0367] or,

[0368] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0369] identity information of the terminal at the first node;

[0370] Identity information of a candidate cell associated with the terminal at the first node.

[0371] Optionally, the first node is one or more nodes, and for any first node, the second node includes all first candidate nodes except the first node.

[0372] The above configuration information sending device can improve switching performance.

[0373] The configuration information sending device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or a network-side device.

[0374] The configuration information sending device provided in the embodiment of the present application can implement the various processes implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0375] Please refer to FIG6 , which is a structural diagram of a configuration information receiving device provided in an embodiment of the present application. As shown in FIG6 , the configuration information receiving device 600 includes:

[0376] A first receiving module 601 is configured to receive node configuration information sent by a source node, wherein the node configuration information includes first configuration information associated with a second node, the first node corresponding to the apparatus includes a first candidate node or a target node, and the second node includes a second candidate node;

[0377] The first configuration information includes at least one of the following:

[0378] Data forwarding address;

[0379] Identity information of the terminal.

[0380] Optionally, the node configuration information further includes the first configuration information associated with the first node.

[0381] Optionally, the device further comprises:

[0382] A sending module, configured to send second configuration information to the source node;

[0383] The second configuration information includes at least one of the following:

[0384] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following:

[0385] PDU session identifier, data forwarding address.

[0386] Optionally, the device further comprises:

[0387] A second receiving module, configured to receive a first request sent by the source node;

[0388] The sending module is configured to send a first response to the source node, where the first response includes the second configuration information;

[0389] The first request includes at least one of the following:

[0390] Candidate cell identifier;

[0391] The key of the candidate cell;

[0392] identity information of the terminal at the source node;

[0393] Radio Resource Management (RRM) configuration of the terminal;

[0394] Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB);

[0395] PDU session related information;

[0396] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0397] LTM candidate configuration identifier of the candidate cell;

[0398] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0399] LTM channel state information CSI resource configuration;

[0400] Request information for requesting random access resources of a candidate cell;

[0401] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0402] Refer to the configuration information.

[0403] Optionally, the device further comprises:

[0404] The third receiving module is configured to receive a second request sent by the source node, where the second request is used to request at least one of the following:

[0405] Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

[0406] Optionally, the first receiving module 601 is configured to perform at least one of the following:

[0407] In an LTM preparation process, receiving node configuration information sent by a source node, the first node including a candidate node, the source node including: a node performing the LTM preparation process;

[0408] During the LTM execution process, receiving node configuration information sent by a source node, wherein the first node includes the target node, and the source node includes: a service node of a terminal during the LTM execution process or before the LTM execution process;

[0409] When LTM is completed, the node configuration information sent by the source node is received, the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

[0410] Optionally, when the LTM is completed, receiving the node configuration information sent by the source node includes:

[0411] When the LTM is completed, node configuration information sent by the source node based on the request sent by the first node is received.

[0412] Optionally, the first configuration information further includes at least one of the following:

[0413] LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0414] Optionally, the node configuration information further includes at least one of the following:

[0415] TCI status information, target cell identifier.

[0416] Optionally, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0417] a data forwarding address of the second node;

[0418] a data forwarding address of the candidate cell associated with the second node;

[0419] or,

[0420] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0421] a data forwarding address of the first node;

[0422] a data forwarding address of the candidate cell associated with the first node.

[0423] Optionally, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0424] identity information of the terminal at the second node;

[0425] identity information of a candidate cell associated with the terminal at the second node;

[0426] or,

[0427] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0428] identity information of the terminal at the first node;

[0429] Identity information of a candidate cell associated with the terminal at the first node.

[0430] Optionally, the second nodes are all candidate nodes except the first node.

[0431] The above configuration information receiving device can improve switching performance.

[0432] The configuration information receiving device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal or a network-side device.

[0433] The configuration information receiving device provided in the embodiment of the present application can implement the various processes implemented by the method embodiment shown in Figure 3 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0434] Optionally, as shown in FIG7 , an embodiment of the present application further provides a communication device 700, comprising a processor 701 and a memory 702, wherein the memory 702 stores a program or instruction that can be run on the processor 701. For example, when the communication device 700 is a terminal, the program or instruction, when executed by the processor 701, implements the various steps of the embodiment of the configuration information sending method described above, and can achieve the same technical effect. For example, when the communication device 700 is a network-side device, the program or instruction, when executed by the processor 701, implements the various steps of the embodiment of the configuration information receiving method described above, and can achieve the same technical effect. To avoid repetition, they are not described here.

[0435] An embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to send node configuration information to a first node, the node configuration information includes first configuration information associated with a second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and the identity information of the terminal. Alternatively, the communication interface is used to receive node configuration information sent by a source node, the node configuration information includes first configuration information associated with a second node, the first node corresponding to the communication device includes a first candidate node or a target node, and the second node includes a second candidate node; wherein the first configuration information includes at least one of the following: a data forwarding address; and the identity information of the terminal. This communication device embodiment corresponds to the above-mentioned configuration information sending method or configuration information receiving method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment and can achieve the same technical effect.

[0436] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 8, device 800 includes an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. Antenna 801 is connected to radio frequency device 802. In the uplink direction, radio frequency device 802 receives information via antenna 801 and sends the received information to baseband device 803 for processing. In the downlink direction, baseband device 803 processes the information to be transmitted and sends it to radio frequency device 802. Radio frequency device 802 processes the received information and then sends it through antenna 801.

[0437] The configuration information sending method or the configuration information receiving method in the above embodiments may be implemented in the baseband device 803 , which includes a baseband processor.

[0438] The baseband device 803 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 8, one of which is, for example, a baseband processor, which is connected to the memory 805 through a bus interface to call the program in the memory 805 and execute the device operations shown in the above method embodiment.

[0439] The device may further include a network interface 806 , which may be, for example, a Common Public Radio Interface (CPRI).

[0440] Specifically, the device 800 of the embodiment of the present application also includes: instructions or programs stored in the memory 805 and executable on the processor 804. The processor 804 calls the instructions or programs in the memory 805 to execute the methods executed by the modules shown in FIG5 or 6 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0441] In one embodiment, the network-side device is a source node:

[0442] The radio frequency device 802 is configured to send node configuration information to a first node, where the node configuration information includes first configuration information associated with a second node, where the first node includes a first candidate node or a target node, and the second node includes a second candidate node;

[0443] The first configuration information includes at least one of the following:

[0444] Data forwarding address;

[0445] Identity information of the terminal.

[0446] Optionally, the node configuration information further includes the first configuration information associated with the first node.

[0447] Optionally, the radio frequency device 802 is further configured to:

[0448] receiving second configuration information sent by at least one of the first node and the second node;

[0449] The second configuration information includes at least one of the following:

[0450] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following:

[0451] PDU session identifier, data forwarding address.

[0452] Optionally, the radio frequency device 802 is further configured to:

[0453] Sending a first request to at least one of the first node and the second node;

[0454] The receiving second configuration information sent by at least one of the first node and the second node includes:

[0455] receiving a first response sent by at least one of the first node and the second node, where the first response includes the second configuration information;

[0456] The first request includes at least one of the following:

[0457] Candidate cell identifier;

[0458] The key of the candidate cell;

[0459] identity information of the terminal at the source node;

[0460] Radio Resource Management (RRM) configuration of the terminal;

[0461] Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB);

[0462] PDU session related information;

[0463] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0464] LTM candidate configuration identifier of the candidate cell;

[0465] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0466] LTM channel state information CSI resource configuration information;

[0467] Request information for requesting random access resources of a candidate cell;

[0468] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0469] Refer to the configuration information.

[0470] Optionally, the radio frequency device 802 is further configured to:

[0471] Send a second request to at least one of the first node and the second node, where the second request is used to request at least one of the following:

[0472] Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

[0473] Optionally, sending the node configuration information to the first node includes at least one of the following:

[0474] During the LTM preparation process, a point sends node configuration information to a first node, the first node comprising a candidate node, the source node comprising: a node performing the LTM preparation process;

[0475] During the LTM execution process, node configuration information is sent to a first node, the first node including the target node, the source node including: a service node of a terminal during the LTM execution process or before the LTM execution process;

[0476] When LTM is completed, node configuration information is sent to the first node, where the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

[0477] Optionally, when the LTM is completed, sending the node configuration information to the first node includes:

[0478] When the LTM is completed, node configuration information is sent to the first node based on the request sent by the first node.

[0479] Optionally, the first configuration information further includes at least one of the following:

[0480] LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0481] Optionally, the node configuration information further includes at least one of the following:

[0482] TCI status information, target cell identifier.

[0483] Optionally, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0484] a data forwarding address of the second node;

[0485] a data forwarding address of the candidate cell associated with the second node;

[0486] or,

[0487] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0488] a data forwarding address of the first node;

[0489] a data forwarding address of the candidate cell associated with the first node.

[0490] Optionally, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0491] identity information of the terminal at the second node;

[0492] identity information of a candidate cell associated with the terminal at the second node;

[0493] or,

[0494] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0495] identity information of the terminal at the first node;

[0496] Identity information of a candidate cell associated with the terminal at the first node.

[0497] Optionally, the first node is one or more nodes, and for any first node, the second node includes all first candidate nodes except the first node.

[0498] In another embodiment, the network-side device is a first node:

[0499] In a radio frequency device 802, a first node receives node configuration information sent by a source node, where the node configuration information includes first configuration information associated with a second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node;

[0500] The first configuration information includes at least one of the following:

[0501] Data forwarding address;

[0502] Identity information of the terminal.

[0503] Optionally, the node configuration information further includes the first configuration information associated with the first node.

[0504] Optionally, the radio frequency device 802 is further configured to:

[0505] Sending second configuration information to the source node;

[0506] The second configuration information includes at least one of the following:

[0507] The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following:

[0508] PDU session identifier, data forwarding address.

[0509] Optionally, the radio frequency device 802 is further configured to:

[0510] receiving a first request sent by the source node;

[0511] The sending the second configuration information to the source node includes:

[0512] Sending a first response to the source node, where the first response includes the second configuration information;

[0513] The first request includes at least one of the following:

[0514] Candidate cell identifier;

[0515] The key of the candidate cell;

[0516] identity information of the terminal at the source node;

[0517] Radio Resource Management (RRM) configuration of the terminal;

[0518] Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB);

[0519] PDU session related information;

[0520] indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes;

[0521] LTM candidate configuration identifier of the candidate cell;

[0522] The mapping relationship between LTM candidate configuration and candidate cell identifier;

[0523] LTM channel state information CSI resource configuration;

[0524] Request information for requesting random access resources of a candidate cell;

[0525] Request information for requesting the candidate node to generate reference configuration information based on the candidate cell;

[0526] Refer to the configuration information.

[0527] Optionally, the radio frequency device 802 is further configured to:

[0528] Receive a second request sent by the source node, where the second request is used to request at least one of the following:

[0529] Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

[0530] Optionally, the node configuration information received from the source node includes at least one of the following:

[0531] In an LTM preparation process, receiving node configuration information sent by a source node, the first node including a candidate node, the source node including: a node performing the LTM preparation process;

[0532] During the LTM execution process, receiving node configuration information sent by a source node, wherein the first node includes the target node, and the source node includes: a service node of a terminal during the LTM execution process or before the LTM execution process;

[0533] When LTM is completed, the node configuration information sent by the source node is received, the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

[0534] Optionally, when the LTM is completed, the first node receiving the node configuration information sent by the source node includes:

[0535] When the LTM is completed, the first node receives the node configuration information sent by the source node based on the request sent by the first node.

[0536] Optionally, the first configuration information further includes at least one of the following:

[0537] LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

[0538] Optionally, the node configuration information further includes at least one of the following:

[0539] TCI status information, target cell identifier.

[0540] Optionally, for the first configuration information associated with the second node, the data forwarding address includes at least one of the following:

[0541] a data forwarding address of the second node;

[0542] a data forwarding address of the candidate cell associated with the second node;

[0543] or,

[0544] For the first configuration information associated with the first node, the data forwarding address includes at least one of the following:

[0545] a data forwarding address of the first node;

[0546] a data forwarding address of the candidate cell associated with the first node.

[0547] Optionally, for the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following:

[0548] identity information of the terminal at the second node;

[0549] identity information of a candidate cell associated with the terminal at the second node;

[0550] or,

[0551] For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following:

[0552] identity information of the terminal at the first node;

[0553] Identity information of a candidate cell associated with the terminal at the first node.

[0554] Optionally, the second nodes are all candidate nodes except the first node.

[0555] The above devices can improve the switching performance.

[0556] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0557] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned configuration information sending method or configuration information receiving method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0558] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0559] An embodiment of the present application further provides a wireless communication system, including: a source node and a first node, wherein the source node can be used to execute the steps of the configuration information sending method provided in the embodiment of the present application, and the first node can be used to execute the steps of the configuration information receiving method provided in the embodiment of the present application.

[0560] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned configuration information sending method or configuration information receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0561] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0562] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned configuration information sending method or configuration information receiving method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0563] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0564] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0565] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for sending configuration information, comprising: The source node sends node configuration information to the first node, where the node configuration information includes first configuration information associated with the second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node; The first configuration information includes at least one of the following: Data forwarding address; Identity information of the terminal.

2. The method according to claim 1, wherein The node configuration information also includes the first configuration information associated with the first node.

3. The method according to claim 1 or 2, further comprising: The source node receives second configuration information sent by at least one of the first node and the second node; The second configuration information includes at least one of the following: The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following: PDU session identifier, data forwarding address.

4. The method of claim 3, further comprising: The source node sends a first request to at least one of the first node and the second node; The source node receives second configuration information sent by at least one of the first node and the second node, including: The source node receives a first response sent by at least one of the first node and the second node, where the first response includes the second configuration information; The first request includes at least one of the following: Candidate cell identifier; The key of the candidate cell; identity information of the terminal at the source node; Radio Resource Management (RRM) configuration of the terminal; Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB); PDU session related information; indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes; LTM candidate configuration identifier of the candidate cell; The mapping relationship between LTM candidate configuration and candidate cell identifier; LTM channel state information CSI resource configuration information; Request information for requesting random access resources of a candidate cell; Request information for requesting the candidate node to generate reference configuration information based on the candidate cell; Refer to the configuration information.

5. The method according to any one of claims 1 to 4, further comprising: The source node sends a second request to at least one of the first node and the second node, where the second request is used to request at least one of the following: Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

6. The method according to any one of claims 1 to 5, wherein The source node sending node configuration information to the first node includes at least one of the following: During the LTM preparation process, the source node sends node configuration information to a first node, the first node comprising a candidate node, the source node comprising: a node that performs the LTM preparation process; During the LTM execution process, the source node sends node configuration information to a first node, the first node including the target node, the source node including: a service node of a terminal during the LTM execution process or before the LTM execution process; When LTM is completed, the source node sends node configuration information to the first node, where the first node includes the target node, and the source node includes: a node that performs the LTM preparation process, or a service node of the terminal during the LTM execution process or before the LTM execution process.

7. The method according to claim 6, wherein: When the LTM is completed, the source node sending the node configuration information to the first node includes: When the LTM is completed, the source node sends node configuration information to the first node based on the request sent by the first node.

8. The method according to any one of claims 1 to 7, wherein The first configuration information further includes at least one of the following: LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

9. The method according to any one of claims 1 to 8, wherein The node configuration information also includes at least one of the following: TCI status information, target cell identifier.

10. The method according to any one of claims 1 to 9, wherein For the first configuration information associated with the second node, the data forwarding address includes at least one of the following: a data forwarding address of the second node; a data forwarding address of the candidate cell associated with the second node; or, For the first configuration information associated with the first node, the data forwarding address includes at least one of the following: a data forwarding address of the first node; a data forwarding address of the candidate cell associated with the first node.

11. The method according to any one of claims 1 to 10, wherein For the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following: identity information of the terminal at the second node; identity information of a candidate cell associated with the terminal at the second node; or, For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following: identity information of the terminal at the first node; Identity information of a candidate cell associated with the terminal at the first node.

12. The method according to any one of claims 1 to 11, wherein The first node is one or more nodes. For any first node, the second node includes all first candidate nodes except the first node.

13. A method for receiving configuration information, comprising: The first node receives node configuration information sent by a source node, where the node configuration information includes first configuration information associated with a second node, the first node includes a first candidate node or a target node, and the second node includes a second candidate node; The first configuration information includes at least one of the following: Data forwarding address; Identity information of the terminal.

14. The method of claim 13, wherein: The node configuration information also includes the first configuration information associated with the first node.

15. The method according to claim 13 or 14, further comprising: The first node sends second configuration information to the source node; The second configuration information includes at least one of the following: The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following: PDU session identifier, data forwarding address.

16. The method of claim 15, further comprising: The first node receives a first request sent by the source node; The first node sending second configuration information to the source node includes: The first node sends a first response to the source node, where the first response includes the second configuration information; The first request includes at least one of the following: Candidate cell identifier; The key of the candidate cell; identity information of the terminal at the source node; Radio Resource Management (RRM) configuration of the terminal; Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB); PDU session related information; indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes; LTM candidate configuration identifier of the candidate cell; The mapping relationship between LTM candidate configuration and candidate cell identifier; LTM channel state information CSI resource configuration; Request information for requesting random access resources of a candidate cell; Request information for requesting the candidate node to generate reference configuration information based on the candidate cell; Refer to the configuration information.

17. The method of any one of claims 13 to 16, further comprising: The first node receives a second request sent by the source node, where the second request is used to request at least one of the following: Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

18. The method according to any one of claims 13 to 17, wherein The node configuration information received by the first node from the source node includes at least one of the following: During the LTM preparation process, the first node receives node configuration information sent by a source node, the first node comprising a candidate node, and the source node comprising: a node that performs the LTM preparation process; During the LTM execution process, the first node receives node configuration information sent by a source node, the first node including the target node, and the source node including: a service node of a terminal during the LTM execution process or before the LTM execution process; When LTM is completed, the first node receives the node configuration information sent by the source node, the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

19. The method of claim 18, wherein: When the LTM is completed, the first node receiving the node configuration information sent by the source node includes: When the LTM is completed, the first node receives the node configuration information sent by the source node based on the request sent by the first node.

20. The method according to any one of claims 13 to 19, wherein The first configuration information further includes at least one of the following: LTM CSI reporting configuration, transmission configuration indication TCI status information, random access configuration information, and LTM candidate configuration identifier.

21. The method according to any one of claims 13 to 20, wherein The node configuration information also includes at least one of the following: TCI status information, target cell identifier.

22. The method of any one of claims 13 to 21, wherein For the first configuration information associated with the second node, the data forwarding address includes at least one of the following: a data forwarding address of the second node; a data forwarding address of the candidate cell associated with the second node; or, For the first configuration information associated with the first node, the data forwarding address includes at least one of the following: a data forwarding address of the first node; a data forwarding address of the candidate cell associated with the first node.

23. The method of any one of claims 13 to 22, wherein For the first configuration information associated with the second node, the identity information of the terminal includes at least one of the following: identity information of the terminal at the second node; identity information of a candidate cell associated with the terminal at the second node; or, For the first configuration information associated with the first node, the identity information of the terminal includes at least one of the following: identity information of the terminal at the first node; Identity information of a candidate cell associated with the terminal at the first node.

24. The method of any one of claims 13 to 23, wherein The second nodes are all candidate nodes except the first node.

25. A configuration information sending device, comprising: A first sending module, configured to send node configuration information to a first node, the node configuration information including first configuration information associated with a second node, the first node including a first candidate node or a target node, and the second node including a second candidate node; The first configuration information includes at least one of the following: Data forwarding address; Identity information of the terminal.

26. The apparatus of claim 25, further comprising: a receiving module, configured to receive second configuration information sent by at least one of the first node and the second node; The second configuration information includes at least one of the following: The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following: PDU session identifier, data forwarding address.

27. The apparatus of claim 26, further comprising: a second sending module, configured to send a first request to at least one of the first node and the second node; The receiving module is configured to receive a first response sent by at least one of the first node and the second node, where the first response includes the second configuration information; The first request includes at least one of the following: Candidate cell identifier; The key of the candidate cell; Identity information of the terminal at the source node; Radio Resource Management (RRM) configuration of the terminal; Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB); PDU session related information; indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes; LTM candidate configuration identifier of the candidate cell; The mapping relationship between LTM candidate configuration and candidate cell identifier; LTM channel state information CSI resource configuration information; Request information for requesting random access resources of a candidate cell; Request information for requesting the candidate node to generate reference configuration information based on the candidate cell; Refer to the configuration information.

28. The apparatus of any one of claims 25 to 27, further comprising: The third sending module is configured to send a second request to at least one of the first node and the second node, where the second request is used to request at least one of the following: Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

29. The device according to any one of claims 25 to 28, wherein The first sending module is used for at least one of the following: During an LTM preparation process, node configuration information is sent to a first node, the first node comprising a candidate node, and the source node corresponding to the apparatus comprises: a node performing the LTM preparation process; During the LTM execution process, node configuration information is sent to a first node, the first node including the target node, and the source node corresponding to the apparatus includes: a service node of a terminal during the LTM execution process or before the LTM execution process; When LTM is completed, node configuration information is sent to the first node, the first node includes the target node, and the source node corresponding to the device includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

30. A configuration information receiving device, comprising: A first receiving module is configured to receive node configuration information sent by a source node, wherein the node configuration information includes first configuration information associated with a second node, the first node corresponding to the apparatus includes a first candidate node or a target node, and the second node includes a second candidate node; The first configuration information includes at least one of the following: Data forwarding address; Identity information of the terminal.

31. The apparatus of claim 30, further comprising: A sending module, configured to send second configuration information to the source node; The second configuration information includes at least one of the following: The terminal's identity information, candidate configuration identifier, candidate cell identifier, protocol data unit (PDU) session resources, and configuration information of candidate cells for layer 1 / layer 2 triggered mobility LTM, wherein the PDU session resources include at least one of the following: PDU session identifier, data forwarding address.

32. The apparatus of claim 31 , further comprising: A second receiving module, configured to receive a first request sent by the source node; The sending module is configured to send a first response to the source node, where the first response includes the second configuration information; The first request includes at least one of the following: Candidate cell identifier; The key of the candidate cell; identity information of the terminal at the source node; Radio Resource Management (RRM) configuration of the terminal; Mapping rules from Quality of Service (QoS) flows to Data Radio Bearer (DRB); PDU session related information; indication information used to indicate that the purpose of the first request is to configure LTM configuration information between nodes; LTM candidate configuration identifier of the candidate cell; The mapping relationship between LTM candidate configuration and candidate cell identifier; LTM channel state information CSI resource configuration; Request information for requesting random access resources of a candidate cell; Request information for requesting the candidate node to generate reference configuration information based on the candidate cell; Refer to the configuration information.

33. The apparatus of any one of claims 30 to 32, further comprising: The third receiving module is configured to receive a second request sent by the source node, where the second request is used to request at least one of the following: Reference configuration information, configuration information of channel state information reference signal CSI-RS, and configuration information of synchronization signal block SSB.

34. The device of any one of claims 30 to 33, wherein The first receiving module is used for at least one of the following: In an LTM preparation process, receiving node configuration information sent by a source node, the first node including a candidate node, the source node including: a node performing the LTM preparation process; During the LTM execution process, receiving node configuration information sent by a source node, wherein the first node includes the target node, and the source node includes: a service node of a terminal during the LTM execution process or before the LTM execution process; When LTM is completed, the node configuration information sent by the source node is received, the first node includes the target node, and the source node includes: the node that performs the LTM preparation process, or the service node of the terminal during the LTM execution process or before the LTM execution process.

35. A network side device, wherein: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the configuration information sending method as described in any one of claims 1 to 12, and when the program or instruction is executed by the processor, it implements the steps of the configuration information receiving method as described in any one of claims 13 to 24.

36. A readable storage medium, wherein: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the configuration information sending method according to any one of claims 1 to 12, or implements the steps of the configuration information receiving method according to any one of claims 13 to 24.

37. A computer program product, wherein The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement the steps of the configuration information sending method according to any one of claims 1 to 12, or to implement the steps of the configuration information receiving method according to any one of claims 13 to 24.

Images