Secondary node transformation method, terminal device, and network device

Abstract

The embodiment of the present application provides a secondary node transformation method, a terminal device and a network device, the network device can know that the measurement result of the terminal device meets the secondary node transformation condition in time, thereby improving the secondary node transformation performance. The secondary node transformation method comprises the following steps: a master node receives first indication information, wherein the first indication information is used for indicating that the secondary node transformation condition has been met, or the first indication information is used for indicating that the terminal device initiates a secondary node transformation process; in response to the first indication information, the master node sends second indication information to a source secondary node, the second indication information is used for indicating that the source secondary node releases the connection facing the terminal device, and / or the second indication information is used for indicating that the source secondary node terminates the data transmission facing the terminal device.

Description

[0001] This application is a divisional application of the invention patent application with application number 202080099195.3, application date October 22, 2020, and invention title "Auxiliary Node Transformation Method, Terminal Equipment and Network Equipment". Technical Field

[0002] This application relates to the field of communications, and more specifically, to a method for auxiliary node transformation, a terminal device, and a network device. Background Technology

[0003] In a dual connectivity (DC) scenario, during secondary node (SN) change, the master node (MN) or the source secondary node sends the execution conditions for the secondary node change to the terminal device in the form of a measurement identity (ID). The measurement ID links a frequency point and up to two execution events (such as events A3 and A5). The terminal device only begins the secondary node change process when the measurement signal from the source cell and the measurement signal from the cell corresponding to the aforementioned frequency point with a specific physical cell identity (ID) meet the conditions specified by the execution events. However, during secondary node change, the network device cannot know the exact moment when the measurement results meet the secondary node change conditions, affecting the performance of the secondary node change. Summary of the Invention

[0004] This application provides a method for auxiliary node transformation, a terminal device, and a network device. The network device can promptly obtain information that the measurement results of the terminal device meet the conditions for auxiliary node transformation, thereby improving the performance of auxiliary node transformation.

[0005] Firstly, a method for transforming auxiliary nodes is provided, which includes:

[0006] The master node receives a first indication message, wherein the first indication message is used to indicate that the conditions for the transformation of the auxiliary node have been met, or the first indication message is used to indicate that the terminal device has initiated the transformation process of the auxiliary node.

[0007] In response to the first instruction, the master node sends a second instruction to the source auxiliary node, the second instruction being used to instruct the source auxiliary node to release the connection to the terminal device, and / or, the second instruction being used to instruct the source auxiliary node to terminate the data transmission to the terminal device.

[0008] Secondly, a method for transforming auxiliary nodes is provided, which includes:

[0009] The source and auxiliary nodes receive first indication information, wherein the first indication information is used to indicate that the auxiliary node transformation conditions have been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process.

[0010] In response to the first instruction, the source / auxiliary node releases the connection to the terminal device, and / or the source / auxiliary node terminates data transmission to the terminal device.

[0011] Thirdly, a method for transforming auxiliary nodes is provided, which includes:

[0012] If the secondary node transformation conditions are met, the terminal device sends a first indication message; or, during the random access process, the terminal device sends a target random access preamble.

[0013] The first indication information is used to indicate that the conditions for the secondary node transformation have been met, or the first indication information is used to indicate that the terminal device has initiated the secondary node transformation process;

[0014] The target random access preamble is used by the terminal device to perform auxiliary node transformation.

[0015] Fourthly, a network device is provided for performing the method described in the first aspect above.

[0016] Specifically, the network device includes a functional module for performing the method described in the first aspect above.

[0017] Fifthly, a network device is provided for performing the method described in the second aspect above.

[0018] Specifically, the network device includes a functional module for performing the method described in the second aspect above.

[0019] Sixthly, a terminal device is provided for performing the method described in the third aspect above.

[0020] Specifically, the terminal device includes a functional module for performing the method described in the third aspect above.

[0021] In a seventh aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to invoke and run the computer program stored in the memory to perform the method described in the first aspect.

[0022] Eighthly, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method described in the second aspect above.

[0023] In a ninth aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to perform the method described in the third aspect above.

[0024] In a tenth aspect, an apparatus is provided for implementing the method in any one of the first to third aspects described above.

[0025] Specifically, the device includes a processor for retrieving and running a computer program from a memory, causing a device equipped with the device to perform the method described in any of the first to third aspects above.

[0026] Eleventhly, a computer-readable storage medium is provided for storing a computer program that causes a computer to perform the methods of any one of the first to third aspects described above.

[0027] In a twelfth aspect, a computer program product is provided, comprising computer program instructions that cause a computer to perform the methods of any one of the first to third aspects described above.

[0028] In a thirteenth aspect, a computer program is provided that, when run on a computer, causes the computer to perform the methods of any one of the first to third aspects described above.

[0029] Through the technical solution of the first aspect mentioned above, the master node can promptly know that the transformation conditions of the auxiliary node have been met, and promptly instruct the source auxiliary node to release the connection to the terminal device, and / or instruct the source auxiliary node to terminate the data transmission to the terminal device, thereby reducing the unnecessary consumption of air interface resources between the terminal device and the source auxiliary node, and thus improving the transformation performance of the auxiliary node.

[0030] Through the technical solution in the second aspect mentioned above, the source and auxiliary nodes can promptly know that the auxiliary node transformation conditions have been met, and promptly release the connection to the terminal device, and / or terminate the data transmission to the terminal device, thereby reducing the unnecessary consumption of air interface resources between the terminal device and the source and auxiliary nodes, and thus improving the transformation performance of the auxiliary node.

[0031] Through the technical solution in the third aspect mentioned above, when the conditions for secondary node transformation are met, the terminal device indicates to the network device that the conditions for secondary node transformation have been met, or indicates to the network device that the terminal device has initiated the secondary node transformation process. Thus, the network device can promptly know that the measurement results of the terminal device meet the conditions for secondary node transformation, thereby improving the performance of secondary node transformation.

[0032] Alternatively, if the conditions for secondary node transformation are met, the terminal device sends a target random access preamble during the random access process, so that the network device can promptly know that the measurement results of the terminal device meet the conditions for secondary node transformation, thereby improving the performance of secondary node transformation. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of a communication system architecture used in an embodiment of this application.

[0034] Figure 2 This is a schematic flowchart of the SN transformation process for MN initialization provided in this application.

[0035] Figure 3 This is a schematic flowchart of the SN conversion process for SN initialization provided in this application.

[0036] Figure 4 This is a schematic flowchart of an auxiliary node transformation method provided according to an embodiment of this application.

[0037] Figure 5 This is a schematic flowchart of another auxiliary node transformation method provided according to an embodiment of this application.

[0038] Figure 6 This is a schematic flowchart of another auxiliary node transformation method provided according to an embodiment of this application.

[0039] Figure 7 This is a schematic block diagram of a network device provided according to an embodiment of this application.

[0040] Figure 8 This is a schematic block diagram of another network device provided according to an embodiment of this application.

[0041] Figure 9 This is a schematic block diagram of a terminal device provided according to an embodiment of this application.

[0042] Figure 10 This is a schematic block diagram of a communication device provided according to an embodiment of this application.

[0043] Figure 11 This is a schematic block diagram of an apparatus provided according to an embodiment of this application.

[0044] Figure 12 This is a schematic block diagram of a communication system provided according to an embodiment of this application. Specific Implementation

[0045] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0046] The technical solutions of this application embodiment can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, evolution of NR system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Evolved Universal Terrestrial Radio Access Network (E-UTRAN), and Wireless Local Area Network (WLAN). Networks (WLAN), Wireless Fidelity (WiFi), 5th-Generation (5G) systems, or other communication systems.

[0047] Traditional communication systems typically support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication but also, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to these communication systems.

[0048] Optionally, the communication system in this application embodiment can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) network deployment scenario.

[0049] Optionally, the communication system in this application embodiment can be applied to unlicensed spectrum, wherein unlicensed spectrum can also be considered as shared spectrum; or, the communication system in this application embodiment can also be applied to licensed spectrum, wherein licensed spectrum can also be considered as non-shared spectrum.

[0050] This application describes various embodiments in conjunction with network devices and terminal devices. The terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device, etc.

[0051] Terminal devices can be stations (STs) in WLANs, cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, wearable devices, terminal devices in next-generation communication systems such as NR networks, or terminal devices in future evolved Public Land Mobile Network (PLMN) networks, etc.

[0052] In the embodiments of this application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships); and it can also be deployed in the air (such as airplanes, balloons and satellites).

[0053] In the embodiments of this application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver capabilities, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical care, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0054] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0055] In the embodiments of this application, the network device can be a device for communicating with mobile devices. The network device can be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a network device or base station (gNB) in vehicle-mounted equipment, wearable devices, and NR networks, or a network device in a future evolved PLMN network or NTN network, etc.

[0056] By way of example and not limitation, in this embodiment, the network device may have mobility characteristics; for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low Earth orbit (LEO) satellite, a medium Earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station located on land, water, or other similar locations.

[0057] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0058] For example, the communication system 100 used in the embodiments of this application is as follows: Figure 1 As shown. The communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0059] Figure 1An exemplary embodiment shows a network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0060] Optionally, the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which is not limited in this embodiment.

[0061] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0062] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] The terminology used in the embodiments section of this application is for the purpose of explaining specific embodiments of this application only, and is not intended to limit this application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0064] It should be understood that the term "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0065] In the description of the embodiments of this application, the term "correspondence" may indicate that there is a direct or indirect correspondence between two things, or that there is an association between two things, or that there is a relationship of instruction and being instructed, configuration and being configured, etc.

[0066] In this embodiment of the application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0067] In this application embodiment, the "protocol" may refer to a standard protocol in the field of communication, such as the LTE protocol, the NR protocol, and related protocols applied to future communication systems. This application does not limit this.

[0068] To facilitate a better understanding of the embodiments of this application, the transformation of auxiliary nodes related to this application will be explained.

[0069] The SN transformation process for MN initialization can be implemented through steps S1-1 to S1-16, as follows: Figure 2 As shown.

[0070] S1-1, the master node (MN) sends a secondary base station addition request (SgNB AdditionRequest) to the target secondary node (T-SN);

[0071] S1-2, the target secondary node (T-SN) sends a secondary base station addition request acknowledgment (SgNB AdditionRequest Acknowledge) to the primary node (MN);

[0072] S1-3a, the master node (MN) sends a secondary base station release request (SgNB ReleaseRequest) to the source secondary node (S-SN);

[0073] S1-3b, the source auxiliary node (S-SN) sends an auxiliary base station release request acknowledgment (SgNB ReleaseRequest Acknowledge) to the master node (MN);

[0074] S1-4, the master node (MN) sends a Radio Resource Control (RRC) Connection Reconfiguration message to the terminal (UE);

[0075] S1-5, the terminal (UE) sends an RRC ConnectionReconfiguration Complete message to the master node (MN);

[0076] S1-6, the master node (MN) sends a secondary base station reconfiguration complete message (SgNBReconfiguration Complete) to the target secondary node (T-SN);

[0077] S1-7, the terminal (UE) initiates a random access procedure to the target secondary node (T-SN);

[0078] S1-8a, the source auxiliary node (S-SN) sends an auxiliary node status transfer (SN StatusTransfer) to the master node (MN);

[0079] S1-8b, the master node (MN) sends a slave node status transfer (SN StatusTransfer) to the target slave node (T-SN);

[0080] S1-9, The Serving Gateway (S-GW) sends downlink data (DataForwarding) to the master node (MN);

[0081] S1-10, the source secondary node (S-SN) sends a Secondary RAT Data Usage Report to the primary node (MN);

[0082] S1-11, the master node (MN) sends an E-RAB Modification Indication to the Mobility Management Entity (MME);

[0083] S1-12, the Mobility Management Entity (MME) and the Serving Gateway (S-GW) implement bearer modification;

[0084] S1-13, the source auxiliary node (S-SN) sends an end marker packet to the target auxiliary node (T-SN) through the master node (MN);

[0085] S1-14, The Serving Gateway (S-GW) sends new path information to the target secondary node (T-SN);

[0086] S1-15, the Mobility Management Entity (MME) sends an E-RAB change confirmation to the Master Node (MN);

[0087] S1-16, the master node (MN) sends the terminal context release information (UE ContextRelease) to the source auxiliary node (S-SN).

[0088] The SN initialization SN transformation process can be implemented through the steps S2-1 to S2-17, as follows: Figure 3 As shown.

[0089] S2-1, the source auxiliary node (S-SN) sends an auxiliary base station change request (SgNB ChangeRequest) to the master node (MN);

[0090] S2-2, the master node (MN) sends a secondary base station addition request (SgNB AdditionRequest) to the target secondary node (T-SN);

[0091] S2-3, the target secondary node (T-SN) sends a secondary base station addition request acknowledgment (SgNB AdditionRequest Acknowledge) to the primary node (MN);

[0092] S2-4, the master node (MN) sends an RRC connection reconfiguration message to the terminal (UE);

[0093] S2-5, the terminal (UE) sends an RRC ConnectionReconfiguration Complete message to the master node (MN);

[0094] S2-6, the master node (MN) sends a secondary base station change confirmation (SgNB ChangeConfirm) to the source secondary node (S-SN);

[0095] S2-7, the master node (MN) sends a secondary base station reconfiguration complete message (SgNBReconfiguration Complete) to the target secondary node (T-SN);

[0096] S2-8, The terminal (UE) initiates a random access procedure to the target secondary node (T-SN);

[0097] S2-9a, the source auxiliary node (S-SN) sends an auxiliary node status transfer (SN StatusTransfer) to the master node (MN);

[0098] S2-9b, the master node (MN) sends a slave node status transfer (SN StatusTransfer) to the target slave node (T-SN);

[0099] S2-10, The Service Gateway (S-GW) sends downlink data (Data Forwarding) to the Master Node (MN);

[0100] S2-11, the source secondary node (S-SN) sends a secondary RAT data usage report to the primary node (MN);

[0101] S2-12, the master node (MN) sends an E-RAB change indication to the mobility management entity (MME);

[0102] S2-13, Mobility Management Entity (MME) and Service Gateway (S-GW) implement Bearer Modification;

[0103] S2-14, the source auxiliary node (S-SN) sends an end marker packet to the target auxiliary node (T-SN) through the master node (MN);

[0104] S2-15, The Serving Gateway (S-GW) sends new path information to the target secondary node (T-SN);

[0105] S2-16, The Mobility Management Entity (MME) sends an E-RAB Change Confirmation to the Master Node (MN);

[0106] S2-17, the master node (MN) sends the terminal context release information (UE ContextRelease) to the source auxiliary node (S-SN).

[0107] From the above Figure 2 It can be seen that the master node (MN) sends a secondary base station release request (SgNBRelease Request) to the source secondary node (S-SN) so that the source secondary node (S-SN) can promptly terminate the data interaction with the terminal and send the cached data to the target secondary node (T-SN) through the Xn interface. From the above... Figure 3As can be seen, when the master node (MN) receives the RRC Connection Reconfiguration Complete message from the terminal (UE), the master node (MN) sends a secondary base station change confirmation (SgNB Change Confirm) to the source secondary node (S-SN) so that the source secondary node (S-SN) can promptly terminate the data interaction with the terminal and send the cached data to the target secondary node (T-SN) through the Xn interface. The reason why the master node (MN) does this is that the master node (MN) clearly knows the time point when the terminal will end data transmission, and releasing the source secondary node (S-SN) will not have a significant impact on the terminal's data transmission throughput.

[0108] During the conditional secondary node transition, the primary node (MN) or the source secondary node (S-SN) sends the execution conditions for the secondary node transition to the terminal device in the form of a measurement ID. The measurement ID links a frequency point and up to two execution events (such as events A3 and A5). The terminal device only begins the secondary node transition process when the measurement signal of the terminal device in the source cell and the measurement signal of the cell with a specific physical cell ID corresponding to the aforementioned frequency point meet the conditions specified by the execution events.

[0109] During the conditional secondary node change, the primary node (MN) or the source secondary node (S-SN) does not know at what exact moment the terminal's measurement results can meet the conditions. Therefore, the primary node (MN) cannot send the secondary base station release request (SgNB Release Request) or secondary base station change confirmation (SgNB Change Confirm) signaling to the source secondary node (S-SN) at the appropriate time.

[0110] Based on the above problems, this application proposes a secondary node transformation scheme, which enables the network to terminate data transmission between the source secondary node and the terminal in a timely manner, thereby reducing unnecessary consumption of air interface resources. Furthermore, the target secondary node can send the address of the data received by the terminal device to the source secondary node so that the source secondary node can promptly send the terminal-related data to the target secondary node.

[0111] The technical solution of this application is described in detail below through specific embodiments.

[0112] Figure 4 This is a schematic flowchart of the auxiliary node transformation method 200 according to an embodiment of this application, as follows: Figure 4 As shown, the method 200 may include at least some of the following:

[0113] S210, the master node receives first indication information, wherein the first indication information is used to indicate that the conditions for the transformation of the auxiliary node have been met, or the first indication information is used to indicate that the terminal device has initiated the transformation process of the auxiliary node.

[0114] S220, in response to the first indication information, the master node sends a second indication information to the source auxiliary node, the second indication information being used to instruct the source auxiliary node to release the connection to the terminal device, and / or, the second indication information being used to instruct the source auxiliary node to terminate the data transmission to the terminal device.

[0115] The embodiments of this application can be applied to the secondary node transformation process in dual connectivity (DC) scenarios. Furthermore, the embodiments of this application can also be applied to the secondary node transformation process in multi-RAT dual connectivity (MR-DC) scenarios.

[0116] Optionally, the second indication information is a secondary node release request, or a secondary node change confirmation. Alternatively, the second indication information is a secondary base station release request (SgNB Release Request), or a secondary base station change confirmation (SgNB Change Confirm).

[0117] Accordingly, in this embodiment, upon receiving the second instruction information, the source / auxiliary node releases the connection to the terminal device, and / or terminates data transmission to the terminal device. This reduces unnecessary consumption of air interface resources between the terminal device and the source / auxiliary node, and also enables timely completion of the auxiliary node switching process.

[0118] In this embodiment of the application, the master node may be a random access process initiated by the terminal device and the target secondary node (e.g., the above). Figure 2 S1-7 in the above, or, the above Figure 3 Before S2-8 in the above, the first indication information is received. In this case, the second indication information is a secondary node release request information (e.g., the above). Figure 2 S1-3a in the above), or, the second indication information is auxiliary node transformation confirmation information (e.g., the above). Figure 3 (S2-6 in the text).

[0119] In this embodiment of the application, the master node may also be the one that initiates a random access process between the terminal device and the target secondary node (e.g., the above). Figure 2 S1-7 in the above, or, the above Figure 3 After S2-8 in the process, the first instruction information is received.

[0120] In some embodiments, during secondary node transformation, the primary node (MN) or the source secondary node (S-SN) sends the execution conditions for the secondary node transformation to the terminal device in the form of a measurement ID. The measurement ID links a frequency point and up to two execution events (such as events A3 and A5). The terminal device only begins the secondary node transformation process when the measurement signal of the terminal device in the source cell and the measurement signal of the cell with a specific physical cell ID corresponding to the aforementioned frequency point meet the conditions specified by the execution events.

[0121] Optionally, in some embodiments, S210 may specifically be:

[0122] The master node receives the first indication information sent by the terminal device. Specifically, when the conditions for the slave node transformation are met, the terminal device sends the first indication information to the master node. Thus, the master node can promptly instruct the source slave node to release the connection to the terminal device, and / or instruct the source slave node to terminate data transmission to the terminal device.

[0123] Alternatively, in other embodiments, S210 may specifically be:

[0124] The master node receives the first indication information sent by the target slave node. Specifically, when the slave node transformation conditions are met, the terminal device sends a target random access preamble to the target slave node during the random access process. This target random access preamble is used by the terminal device to perform slave node transformation. After receiving the target random access preamble, the target slave node learns that the terminal device has initiated the slave node transformation process and that the target slave node has sent the first indication information to the master node. Thus, the master node can promptly instruct the source slave node to release the connection to the terminal device, and / or instruct the source slave node to terminate data transmission to the terminal device.

[0125] In other words, the target auxiliary node can learn from the target random access preamble that the terminal device has initiated the auxiliary node transformation process, and / or learn that the measurement results of the terminal device meet the auxiliary node transformation conditions.

[0126] Optionally, the target random access preamble is configured by the network device, or the target random access preamble is pre-configured or agreed upon by the protocol.

[0127] Optionally, in some embodiments, the master node sends first information to the source auxiliary node. The first information includes address information for the target auxiliary node to receive data for the terminal device. The first information is used by the source auxiliary node to send cached data related to the terminal device to the target auxiliary node.

[0128] Accordingly, after receiving the first information, the source auxiliary node can send the cached data related to the terminal device to the target auxiliary node according to the address information of the target auxiliary node receiving data for the terminal device.

[0129] In one implementation, the master node can proactively send the first information to the source slave node.

[0130] In another implementation, the master node can send the first information to the source auxiliary node based on a request from the source auxiliary node. For example, the master node receives a request from the source auxiliary node requesting the target auxiliary node to receive address information for data directed to the terminal device; in response to the request, the master node sends the first information to the source auxiliary node.

[0131] It should be noted that the information exchange between the master node and the source auxiliary node can be achieved through the Xn interface.

[0132] Therefore, in this embodiment, the master node can promptly know that the transformation conditions of the auxiliary node have been met, and promptly instruct the source auxiliary node to release the connection to the terminal device, and / or instruct the source auxiliary node to terminate the data transmission to the terminal device, thereby reducing the unnecessary consumption of air interface resources between the terminal device and the source auxiliary node, and thus improving the transformation performance of the auxiliary node.

[0133] Figure 5 This is a schematic flowchart of the auxiliary node transformation method 300 according to an embodiment of this application, as follows: Figure 5 As shown, the method 300 may include at least some of the following:

[0134] S310, the source and auxiliary nodes receive first indication information, wherein the first indication information is used to indicate that the auxiliary node transformation condition has been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process.

[0135] S320, in response to the first instruction information, the source / auxiliary node releases the connection to the terminal device, and / or the source / auxiliary node terminates the data transmission to the terminal device.

[0136] The embodiments of this application can be applied to the auxiliary node transformation process in DC scenarios. Furthermore, the embodiments of this application can also be applied to the auxiliary node transformation process in MR-DC scenarios.

[0137] In this embodiment, upon receiving the first instruction information, the source / auxiliary node releases the connection to the terminal device, and / or terminates data transmission to the terminal device. This reduces unnecessary consumption of air interface resources between the terminal device and the source / auxiliary node, and also enables timely completion of the auxiliary node switching process.

[0138] In this embodiment of the application, the source auxiliary node can be a random access procedure initiated by the terminal device and the target auxiliary node (e.g., the above). Figure 2 S1-7 in the above, or, the above Figure 3 Before S2-8 in the above, the first indication information is received. The source secondary node can also be the one initiating a random access procedure between the terminal device and the target secondary node (e.g., as described above). Figure 2 S1-7 in the above, or, the above Figure 3 After S2-8 in the process, the first instruction information is received.

[0139] In some embodiments, during secondary node transformation, the primary node (MN) or the source secondary node (S-SN) sends the execution conditions for the secondary node transformation to the terminal device in the form of a measurement ID. The measurement ID links a frequency point and up to two execution events (such as events A3 and A5). The terminal device only begins the secondary node transformation process when the measurement signal of the terminal device in the source cell and the measurement signal of the cell with a specific physical cell ID corresponding to the aforementioned frequency point meet the conditions specified by the execution events.

[0140] Optionally, in some embodiments, S310 may specifically be:

[0141] The source / auxiliary node receives the first indication information sent by the terminal device. Specifically, when the auxiliary node transformation conditions are met, the terminal device sends the first indication information to the source / auxiliary node. Thus, the source / auxiliary node promptly releases the connection to the terminal device and / or terminates data transmission to the terminal device.

[0142] Alternatively, in other embodiments, S310 may specifically be:

[0143] The primary node receives the first indication information sent by the primary node. In this case, the first indication information is a release request message from the primary node (e.g., as described above). Figure 2 S1-3a in the above), or, the first indication information is auxiliary node transformation confirmation information (e.g., the above). Figure 3 (S2-6 in the text).

[0144] Specifically, when the conditions for secondary node transformation are met, the master node receives specific indication information sent by the terminal device. This specific indication information is used to indicate that the conditions for secondary node transformation have been met, or to indicate that the terminal device has initiated the secondary node transformation process. The master node promptly instructs the source secondary node to release the connection to the terminal device through the first indication information, and / or instructs the source secondary node to terminate the data transmission to the terminal device.

[0145] Optionally, in some embodiments, the source auxiliary node receives first information sent by the master node, the first information including address information for the target auxiliary node to receive data for the terminal device; the source auxiliary node sends cached data related to the terminal device to the target auxiliary node according to the address information for the target auxiliary node to receive data for the terminal device.

[0146] In one implementation, the master node can proactively send the first information to the source slave node.

[0147] In another implementation, the master node can send the first information to the source auxiliary node based on a request from the source auxiliary node. For example, the source auxiliary node sends a request message to the master node, which requests the target auxiliary node to receive address information for data directed to the terminal device; in response to the request message, the master node sends the first information to the source auxiliary node.

[0148] It should be noted that the information exchange between the master node and the source auxiliary node can be achieved through the Xn interface.

[0149] Therefore, in this embodiment, the source and auxiliary nodes can promptly know that the auxiliary node transformation conditions have been met, and promptly release the connection to the terminal device, and / or terminate the data transmission to the terminal device, thereby reducing the unnecessary consumption of air interface resources between the terminal device and the source and auxiliary nodes, and thus improving the transformation performance of the auxiliary nodes.

[0150] Figure 6 This is a schematic flowchart of the auxiliary node transformation method 400 according to an embodiment of this application, such as... Figure 6 As shown, the method 400 may include at least some of the following:

[0151] S410, if the secondary node transformation conditions are met, the terminal device sends a first indication message, or the terminal device sends a target random access preamble during the random access process; wherein, the first indication message is used to indicate that the secondary node transformation conditions have been met, or the first indication message is used to indicate that the terminal device has initiated the secondary node transformation process; the target random access preamble is used by the terminal device to perform the secondary node transformation.

[0152] The embodiments of this application can be applied to the auxiliary node transformation process in DC scenarios. Furthermore, the embodiments of this application can also be applied to the auxiliary node transformation process in MR-DC scenarios.

[0153] In some embodiments, during secondary node transformation, the primary node (MN) or the source secondary node (S-SN) sends the execution conditions for the secondary node transformation to the terminal device in the form of a measurement ID. The measurement ID links a frequency point and up to two execution events (such as events A3 and A5). The terminal device only begins the secondary node transformation process when the measurement signal of the terminal device in the source cell and the measurement signal of the cell with a specific physical cell ID corresponding to the aforementioned frequency point meet the conditions specified by the execution events.

[0154] In other words, the terminal device obtains the transformation conditions of the auxiliary node from the master node or the source auxiliary node.

[0155] Optionally, in some embodiments, S410 may specifically be:

[0156] The terminal device sends the first instruction information to the master node; and / or,

[0157] The terminal device sends the first instruction information to the source and auxiliary nodes.

[0158] Specifically, after receiving the first instruction information, the master node sends a second instruction information to the source auxiliary node. The second instruction information is used to instruct the source auxiliary node to release the connection to the terminal device, and / or, the second instruction information is used to instruct the source auxiliary node to terminate the data transmission to the terminal device.

[0159] Specifically, after receiving the first instruction information, the source auxiliary node can promptly release the connection to the terminal device and / or terminate the data transmission to the terminal device.

[0160] Optionally, in some embodiments, S410 may specifically be:

[0161] During the random access process, the terminal device sends the target random access preamble to the target secondary node.

[0162] Specifically, after receiving the target random access preamble, the target secondary node learns that the terminal device has initiated a secondary node transition process, and that the target secondary node sends specific indication information to the master node. This specific indication information indicates that the secondary node transition conditions have been met, or that the terminal device has initiated the secondary node transition process. Therefore, the master node can promptly instruct the source secondary node to release the connection to the terminal device, and / or instruct the source secondary node to terminate data transmission to the terminal device.

[0163] Optionally, the target random access preamble is configured by the network device, or the target random access preamble is pre-configured or agreed upon by the protocol.

[0164] It should be noted that during the random access process, the terminal device sends the target random access preamble, and the other end can use the target random access preamble to know that the measurement results of the terminal device meet the auxiliary node transformation conditions.

[0165] Therefore, in this embodiment, when the auxiliary node transformation conditions are met, the terminal device indicates to the network device that the auxiliary node transformation conditions have been met, or indicates to the network device that the terminal device has initiated the auxiliary node transformation process, so that the network device can promptly know that the measurement results of the terminal device meet the auxiliary node transformation conditions, thereby improving the auxiliary node transformation performance.

[0166] Alternatively, if the conditions for secondary node transformation are met, the terminal device sends a target random access preamble during the random access process, so that the network device can promptly know that the measurement results of the terminal device meet the conditions for secondary node transformation, thereby improving the performance of secondary node transformation.

[0167] The above text combined Figures 4 to 6 The method embodiments of this application are described in detail below, in conjunction with... Figures 7 to 12 The present application describes the device embodiments in detail. It should be understood that the device embodiments correspond to the method embodiments, and similar descriptions can be referred to the method embodiments.

[0168] Figure 7 A schematic block diagram of a network device 500 according to an embodiment of this application is shown. The network device 500 is a master node, such as... Figure 7 As shown, the network device 500 includes:

[0169] The communication unit 510 is used to receive first indication information, wherein the first indication information is used to indicate that the auxiliary node transformation condition has been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process.

[0170] In response to the first indication information, the communication unit 510 is further configured to send a second indication information to the source auxiliary node, the second indication information being configured to instruct the source auxiliary node to release the connection to the terminal device, and / or, the second indication information being configured to instruct the source auxiliary node to terminate the data transmission to the terminal device.

[0171] Optionally, the communication unit 510 is further configured to send first information to the source auxiliary node, the first information including address information for the target auxiliary node to receive data for the terminal device, the first information being used by the source auxiliary node to send cached data related to the terminal device to the target auxiliary node.

[0172] Optionally, the communication unit 510 is further configured to receive request information sent by the source auxiliary node, the request information being used to request the target auxiliary node to receive address information for data directed to the terminal device.

[0173] Optionally, the communication unit 510 is specifically used for:

[0174] Receive the first instruction information sent by the terminal device.

[0175] Optionally, the communication unit 510 is specifically used for:

[0176] Receive the first indication information sent by the target auxiliary node.

[0177] Optionally, the second indication information is a secondary node release request information, or the second indication information is a secondary node transformation confirmation information.

[0178] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0179] It should be understood that the network device 500 according to the embodiments of this application may correspond to the master node in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 500 are respectively for implementing Figure 4 The corresponding process of the master node in method 200 shown will not be described in detail here for the sake of brevity.

[0180] Figure 8 A schematic block diagram of a network device 600 according to an embodiment of this application is shown. The network device 600 is a source / secondary node, such as... Figure 8 As shown, the network device 600 includes:

[0181] The communication unit 610 is used to receive first indication information, wherein the first indication information is used to indicate that the auxiliary node transformation condition has been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process.

[0182] The processing unit 620 is configured to release the connection to the terminal device and / or terminate the data transmission to the terminal device in response to the first indication information.

[0183] Optionally, the communication unit 610 is further configured to receive first information sent by the master node, the first information including address information for the target auxiliary node to receive data directed to the terminal device;

[0184] The communication unit 610 is also used to send cached data related to the terminal device to the target auxiliary node based on the address information of the data received by the target auxiliary node for the terminal device.

[0185] Optionally, the communication unit 610 is further configured to send a request message to the master node, the request message being used to request the target slave node to receive address information for data directed to the terminal device.

[0186] Optionally, the communication unit 610 is specifically used for:

[0187] Receive the first instruction information sent by the terminal device.

[0188] Optionally, the communication unit 610 is specifically used for:

[0189] Receive the first instruction information sent by the master node.

[0190] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip. The processing unit may be one or more processors.

[0191] It should be understood that the network device 600 according to the embodiments of this application may correspond to the source and auxiliary nodes in the method embodiments of this application, and the above and other operations and / or functions of each unit in the network device 600 are respectively for implementing Figure 5 The corresponding processes of the source and auxiliary nodes in method 300 shown are not described in detail here for the sake of simplicity.

[0192] Figure 9 A schematic block diagram of a terminal device 700 according to an embodiment of this application is shown. Figure 9 As shown, the terminal device 700 includes:

[0193] Communication unit 710, wherein,

[0194] When the auxiliary node transformation conditions are met, the communication unit 710 is used to send first indication information, or the communication unit 710 is used to send a target random access preamble during the random access process; wherein,

[0195] The first indication information is used to indicate that the conditions for the secondary node transformation have been met, or the first indication information is used to indicate that the terminal device has initiated the secondary node transformation process;

[0196] The target random access preamble is used by the terminal device to perform auxiliary node transformation.

[0197] Optionally, the communication unit 710 is specifically used for:

[0198] Send the first indication message to the master node; and / or,

[0199] Send the first instruction information to the source auxiliary node.

[0200] Optionally, the communication unit 710 is specifically used for:

[0201] During the random access process, the target random access preamble is sent to the target secondary node.

[0202] Optionally, the target random access preamble is configured by the network device, or the target random access preamble is pre-configured or agreed upon by the protocol.

[0203] Optionally, the communication unit 710 is also used to obtain the transformation conditions of the auxiliary node from the master node or the source auxiliary node.

[0204] Optionally, in some embodiments, the communication unit may be a communication interface or transceiver, or an input / output interface of a communication chip or system-on-a-chip.

[0205] It should be understood that the terminal device 700 according to the embodiments of this application may correspond to the terminal device in the method embodiments of this application, and the above and other operations and / or functions of each unit in the terminal device 700 are respectively for implementing Figure 6 The corresponding process of the terminal device in method 400 shown will not be described in detail here for the sake of brevity.

[0206] Figure 10 This is a schematic structural diagram of a communication device 800 provided in an embodiment of this application. Figure 10 The communication device 800 shown includes a processor 810, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0207] Optionally, such as Figure 10 As shown, the communication device 800 may further include a memory 820. The processor 810 can retrieve and run computer programs from the memory 820 to implement the methods described in this embodiment.

[0208] The memory 820 can be a separate device independent of the processor 810, or it can be integrated into the processor 810.

[0209] Optionally, such as Figure 10 As shown, the communication device 800 may also include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0210] The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of antennas may be one or more.

[0211] Optionally, the communication device 800 may specifically be a network device in the embodiments of this application, and the communication device 800 may implement the corresponding processes implemented by the master node or the source auxiliary node in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0212] Optionally, the communication device 800 may specifically be a terminal device in the embodiments of this application, and the communication device 800 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0213] Figure 11 This is a schematic structural diagram of the device according to an embodiment of this application. Figure 11 The illustrated apparatus 900 includes a processor 910, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0214] Optionally, such as Figure 11 As shown, the device 900 may further include a memory 920. The processor 910 can retrieve and run computer programs from the memory 920 to implement the methods described in the embodiments of this application.

[0215] The memory 920 can be a separate device independent of the processor 910, or it can be integrated into the processor 910.

[0216] Optionally, the device 900 may further include an input interface 930. The processor 910 can control the input interface 930 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

[0217] Optionally, the device 900 may further include an output interface 940. The processor 910 can control the output interface 940 to communicate with other devices or chips; specifically, it can output information or data to other devices or chips.

[0218] Optionally, the device can be applied to the network device in the embodiments of this application, and the device can implement the corresponding processes implemented by the master node or the source auxiliary node in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0219] Optionally, the device can be applied to the terminal device in the embodiments of this application, and the device can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0220] Optionally, the device mentioned in the embodiments of this application can also be a chip. For example, it can be a system-on-a-chip, a system-on-a-chip, a chip system, or a system-on-a-chip, etc.

[0221] Figure 12 This is a schematic block diagram of a communication system 1000 provided in an embodiment of this application. Figure 12 As shown, the communication system 1000 includes a terminal device 1010 and a network device 1020.

[0222] The terminal device 1010 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1020 can be used to implement the corresponding functions implemented by the master node or the source auxiliary node in the above method. For the sake of brevity, it will not be described in detail here.

[0223] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0224] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0225] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0226] This application also provides a computer-readable storage medium for storing computer programs.

[0227] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the master node or source auxiliary node in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0228] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0229] This application also provides a computer program product, including computer program instructions.

[0230] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the master node or source auxiliary node in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0231] Optionally, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0232] This application also provides a computer program.

[0233] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the master node or source auxiliary node in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0234] Optionally, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0235] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0236] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0237] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0238] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0239] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0240] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0241] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for transforming auxiliary nodes, characterized in that, include: The master node receives first indication information, wherein the first indication information is used to indicate that the conditions for the transformation of the auxiliary node have been met, or the first indication information is used to indicate that the terminal device has initiated the transformation process of the auxiliary node. In response to the first indication information, the master node sends a second indication information to the source auxiliary node, the second indication information being used to instruct the source auxiliary node to release the connection to the terminal device, and / or, the second indication information being used to instruct the source auxiliary node to terminate the data transmission to the terminal device; The master node receives the first indication information, including: The master node receives the first indication information sent by the terminal device; The method further includes: The master node sends first information to the source auxiliary node. The first information includes address information for the target auxiliary node to receive data for the terminal device. The first information is used by the source auxiliary node to send cached data related to the terminal device to the target auxiliary node.

2. The method as described in claim 1, characterized in that, The second indication information is a secondary node release request information, or the second indication information is a secondary node transformation confirmation information.

3. A method for transforming auxiliary nodes, characterized in that, include: The source auxiliary node receives first indication information, wherein the first indication information is used to indicate that the auxiliary node transformation condition has been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process. In response to the first indication information, the source auxiliary node releases the connection to the terminal device, and / or the source auxiliary node terminates the data transmission to the terminal device; The method further includes: The source auxiliary node receives first information sent by the master node, the first information including address information for the target auxiliary node to receive data directed to the terminal device; The source auxiliary node sends the cached data related to the terminal device to the target auxiliary node based on the address information of the data received by the target auxiliary node for the terminal device.

4. The method as described in claim 3, characterized in that, The source and auxiliary nodes receive first indication information, including: The source and auxiliary nodes receive the first indication information sent by the terminal device.

5. The method as described in claim 3, characterized in that, The source and auxiliary nodes receive first indication information, including: The source auxiliary node receives the first indication information sent by the master node.

6. A method for transforming auxiliary nodes, characterized in that, include: When the conditions for auxiliary node transformation are met, the terminal device sends a first indication message; wherein... The first indication information is used to indicate that the auxiliary node transformation condition has been met, or the first indication information is used to indicate that the terminal device has initiated the auxiliary node transformation process; The terminal device sending the first instruction information includes: the terminal device sending the first instruction information to the master node.

7. A terminal device, characterized in that, include: A processor and a memory, the memory for storing computer programs, the processor for calling and running the computer programs stored in the memory, performing the method as described in claim 6.

Images