An information configuration method, device, and communication equipment

Abstract

An embodiment of this application provides an information configuration method, device, and communication device. The method includes: a master node MN sends a first request message to a secondary node SN, where the first request message is used to request configuration of conditional primary-secondary cell (PSCell) change; the MN receives a first response message sent by the SN, where the first response message is used to indicate that the SN accepts the first request message; the MN sends at least one of the following to a terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

Description

[0001] This application is a divisional application of the invention patent application with the application number 202080091260.8, the application date of January 16, 2020, and the invention title of "An Information Configuration Method, Apparatus, and Communication Device". Technical Field

[0002] Embodiments of this application relate to the field of mobile communication technologies, and more particularly, to an information configuration method, apparatus, and communication device. Background Art

[0003] The change of the Primary Secondary Cell (PSCell) is divided into the intra-SN (intra-SN) PSCell change (abbreviated as intra-SN PSCell change) and the inter-SN (inter-SN) PSCell change (abbreviated as inter-SN PSCell change). The intra-SN PSCell change can be further divided into the PSCell change that affects the MN and the PSCell change that does not affect the MN, and the inter-SN PSCell change belongs to the PSCell change that affects the MN.

[0004] For the PSCell change that affects the MN, the New Radio (NR) system does not support the conditional PSCell change that affects the MN, resulting in a relatively large PSCell change delay or a risk of PSCell change failure. Summary of the Invention

[0005] Embodiments of this application provide an information configuration method, apparatus, and communication device.

[0006] The information configuration method provided by embodiments of this application includes:

[0007] The MN sends a first request message to the SN, where the first request message is used to request the configuration of the conditional PSCell change;

[0008] The MN receives a first response message sent by the SN, where the first response message is used to indicate that the SN accepts the first request message;

[0009] The MN sends at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0010] The information configuration method provided by embodiments of this application includes:

[0011] The MN receives a first request message sent by the SN, where the first request message is used to request the configuration of the conditional PSCell change;

[0012] The MN sends a first response message to the SN, and the first response is used to indicate that the MN accepts the first request message;

[0013] The MN sends at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0014] The information configuration method provided by an embodiment of this application includes:

[0015] The MN sends a second request message to the target SN, and the second request message is used to request configuration of conditional SN addition;

[0016] The MN receives a second response message sent by the target SN, and the second response message is used to indicate that the target SN accepts the second request message;

[0017] The MN sends at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0018] The information configuration method provided by an embodiment of this application includes:

[0019] The original SN sends a fourth request message to the target SN, and the fourth request message is used to request configuration of conditional PSCell change;

[0020] The original SN receives a fourth response message sent by the target SN, the fourth response message indicates that the target SN accepts the fourth request message, and the fourth response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration;

[0021] The original SN sends PSCell change condition configuration and at least one of the following to the MN: target SN configuration, target PSCell configuration.

[0022] The information configuration device provided by an embodiment of this application includes:

[0023] A sending unit, configured to send a first request message to the SN, where the first request message is used to request configuration of conditional PSCell change;

[0024] A receiving unit, configured to receive a first response message sent by the SN, where the first response message is used to indicate that the SN accepts the first request message;

[0025] The sending unit is further configured to send at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0026] The information configuration device provided by an embodiment of this application includes:

[0027] A receiving unit, configured to receive a first request message sent by the SN, where the first request message is used to request configuration of conditional PSCell change;

[0028] A sending unit, configured to send a first response message to the SN, where the first response is used to indicate that the MN accepts the first request message; and send at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0029] The information configuration device provided by an embodiment of this application includes:

[0030] A sending unit, configured to send a second request message to the target SN, where the second request message is used to request configuration of conditional SN addition;

[0031] A receiving unit, configured to receive a second response message sent by the target SN, where the second response message is used to indicate that the target SN accepts the second request message;

[0032] The sending unit is further configured to send at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0033] The information configuration device provided by an embodiment of this application includes:

[0034] A sending unit, configured to send a fourth request message to the target SN, where the fourth request message is used to request configuration of conditional PSCell change;

[0035] A receiving unit, configured to receive a fourth response message sent by the target SN, where the fourth response message indicates that the target SN accepts the fourth request message, and the fourth response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration;

[0036] The sending unit is further configured to send PSCell change condition configuration and at least one of the following to the MN: target SN configuration, target PSCell configuration.

[0037] The communication device provided by the embodiment of the present application includes 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 execute the above information configuration method.

[0038] The chip provided by the embodiment of the present application is used to implement the above information configuration method.

[0039] Specifically, the chip includes: a processor, which is used to call and run a computer program from a memory, so that a device installed with the chip executes the above information configuration method.

[0040] The computer-readable storage medium provided by the embodiment of the present application is used to store a computer program, and the computer program enables a computer to execute the above information configuration method.

[0041] The computer program product provided by the embodiment of the present application includes computer program instructions, and the computer program instructions enable a computer to execute the above information configuration method.

[0042] The computer program provided by the embodiment of the present application, when running on a computer, enables the computer to execute the above information configuration method.

[0043] Through the above technical solution, through the negotiation between the MN and the SN, the NR is enabled to support the condition-based intra-SN PSCell change that affects the MN, as well as the condition-based inter-SN PSCell change (which can also be referred to as the condition-based inter-SN SN change), and the condition-based SN addition, thereby reducing the PSCell change delay and increasing the probability of successful PSCell change. Description of the Drawings

[0044] Figure 1 It is a schematic diagram of a communication system architecture provided by the embodiment of the present application;

[0045] Figure 2-1 It is a flowchart of the initial SN adjustment of the MN;

[0046] Figure 2-2 It is a flowchart of the initial SN adjustment of the SN that affects the MN;

[0047] Figure 2-3 It is a flowchart of the initial SN adjustment of the SN that does not affect the MN;

[0048] Figure 3-1 It is a flowchart of the initial SN change of the MN;

[0049] Figure 3-2 It is a flowchart of the initial SN change of the SN;

[0050] Figure 4 Flow schematic of the information configuration method provided by the embodiment of this application Figure 1 ;

[0051] Figure 5 Second flow schematic diagram of the information configuration method provided by the embodiment of this application;

[0052] Figure 6 Third flow schematic diagram of the information configuration method provided by the embodiment of this application;

[0053] Figure 7 Flow schematic of the information configuration method provided by the embodiment of this application Figure 4 ;

[0054] Figure 8 Schematic diagram of the structural composition of the information configuration device provided by the embodiment of this application Figure 1 ;

[0055] Figure 9 Second schematic diagram of the structural composition of the information configuration device provided by the embodiment of this application;

[0056] Figure 10 Third schematic diagram of the structural composition of the information configuration device provided by the embodiment of this application;

[0057] Figure 11 Schematic diagram of the structural composition of the information configuration device provided by the embodiment of this application Figure 4 ;

[0058] Figure 12 Schematic structural diagram of a communication device provided by the embodiment of this application;

[0059] Figure 13 Schematic structural diagram of the chip of the embodiment of this application;

[0060] Figure 14 Schematic block diagram of a communication system provided by the embodiment of this application. Detailed implementation manners

[0061] Next, the technical solutions in the embodiments of this application will be described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the protection scope of this application.

[0062] The technical solution of the embodiment of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, 5G communication system or future communication system, etc.

[0063] Exemplarily, the communication system 100 to which the embodiment of the present application is applied is as Figure 1 shown. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). The network device 110 may provide communication coverage for a specific geographical area and may communicate with terminals located within the coverage area. Optionally, the network device 110 may be an Evolutional Node B (eNB or eNodeB) in an LTE system, or a radio controller in a Cloud Radio Access Network (CRAN), or the network device may be a mobile switching center, a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a network-side device in a 5G network, or a network device in a future communication system, etc.

[0064] The communication system 100 further includes at least one terminal 120 within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, being connected via a wired line, such as via a Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection; and / or another data connection / network; and / or via a wireless interface, such as, for a cellular network, Wireless Local Area Network (WLAN), digital television network such as a DVB-H network, satellite network, AM-FM broadcast transmitter; and / or a device configured to receive / transmit communication signals for another terminal; and / or an Internet of Things (IoT) device. A terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephone with data processing, facsimile, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, Web browsers, notepads, calendars, and / or Global Positioning System (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices including radiotelephone transceivers. A terminal may refer to an access terminal, User Equipment (UE), user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. An access terminal may be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device, or other processing device connected to a wireless modem, in-vehicle device, wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

[0065] Optionally, Device to Device (D2D) communication may be performed between the terminals 120.

[0066] Optionally, the 5G communication system or 5G network may also be referred to as a New Radio (NR) system or NR network.

[0067] Figure 1 Exemplarily, a network device and two terminals are shown. Optionally, the communication system 100 may include multiple network devices, and the coverage range of each network device may include other numbers of terminals. This application embodiment does not limit this.

[0068] Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity. This application embodiment does not limit this.

[0069] It should be understood that in the embodiments of this application, a device with communication functions in a network / system may be referred to as a communication device. Taking Figure 1 the shown communication system 100 as an example, the communication devices may include a network device 110 and a terminal 120 with communication functions. The network device 110 and the terminal 120 may be the specific devices described above and will not be elaborated here; the communication devices may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobility management entity. This application embodiment does not limit this.

[0070] It should be understood that the terms "system" and "network" in this article are often used interchangeably in this article. The term " / and" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally indicates an "or" relationship between the front and rear associated objects.

[0071] To facilitate the understanding of the technical solutions of the embodiments of this application, the following describes the technical solutions related to the embodiments of this application.

[0072] With people's pursuit of rate, latency, high-speed mobility, energy efficiency, as well as the diversity and complexity of services in future life, for this reason, the 3rd Generation Partnership Project (3 rd Generation Partnership Project, 3GPP) international standards organization began to research and develop 5G. The main application scenarios of 5G are: enhanced Mobile Broadband (eMBB), Ultra-Reliable Low-Latency

[0073] Communications (URLLC), massive Machine-Type

[0074] Communications, mMTC).

[0075] On the one hand, eMBB still aims at users' access to multimedia content, services and data, and its demand is growing very rapidly. On the other hand, since eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., there are also significant differences in its capabilities and requirements. Therefore, it cannot be generalized and must be analyzed in detail in combination with specific deployment scenarios. Typical applications of URLLC include: industrial automation, power automation, remote medical operations (surgery), traffic safety assurance, etc. Typical characteristics of mMTC include: high connection density, small data volume, latency-insensitive services, low cost of modules and long service life, etc.

[0076] In the early deployment of NR, it was difficult to obtain complete NR coverage. Therefore, the typical network coverage was the wide-area LTE coverage and the NR island coverage mode. Moreover, a large number of LTEs were deployed below 6 GHz, and there was little spectrum below 6 GHz available for 5G. Therefore, NR had to study the spectrum application above 6 GHz, but the high-frequency band coverage was limited and the signal fading was fast. At the same time, in order to protect the mobile operators' previous investment in LTE, a tight interworking mode between LTE and NR was proposed.

[0077] In order to be able to deploy and commercially apply the 5G network as soon as possible, 3GPP first completed the first 5G version, namely EN-DC (LTE-NR Dual Connectivity). In the later stage of R15, other DC modes will be supported, namely NE-DC, 5GC-EN-DC, NRDC. In EN-DC, the LTE base station serves as the Master Node (MN), and the NR base station serves as the Secondary Node (SN). The LTE base station and the NR base station are connected to the EPC core network. In NE-DC, the NR base station serves as the MN, and the LTE base station serves as the SN. The NR base station and the LTE base station are connected to the 5GC core network. In 5GC-EN-DC, the LTE base station serves as the MN, and the NR base station serves as the SN. The LTE base station and the NR base station are connected to the 5GC core network. In NR DC, one NR base station serves as the MN, and another NR base station serves as the SN. The two NR base stations are connected to the 5GC core network.

[0078] In R16, the network side introduced the configuration of handover conditions and the target cell to be handed over based on the measurement results reported by the terminal device, so that the terminal device can internally judge whether it meets the handover conditions configured by the network side according to its own measurement results. If it meets, the terminal device autonomously switches to the pre-configured target cell, avoiding the handover failure problem caused by the inability to send down the handover command or the inability to send up the measurement report by the terminal device.

[0079] Meanwhile, R16 also supports conditional configuration based on network-side configuration and target primary-secondary cell (PSCell) configuration to implement conditional PSCell change. However, the PSCell change at this time does not affect the MN. Among them, the conditional configuration and the target PSCell configuration are generated by the SN and configured to the terminal device.

[0080] For PSCell changes within the SN (intra-SN PSCell changes for short), there are two scenarios: one does not affect the MN, and the other affects the MN. On the other hand, there are also two scenarios: MN initiated and SN initiated. Figure 2-1 For the SN modification procedure initiated by the MN Figure 2-2 For the SN modification procedure initiated by the SN and affecting the MN

[0081] procedure Figure 2-3 For the SN modification procedure initiated by the SN and not affecting the MN

[0082] procedure. It should be noted that the SN modification procedure specifically refers to the intra-SN PSCell change procedure.

[0083] For PSCell changes between SNs (inter-SN PSCell changes for short), there are two scenarios: MN initiated and SN initiated. Figure 3-1 For the SN change procedure initiated by the MN Figure 3-2 For the SN change procedure initiated by the SN. It should be noted that the SN change procedure specifically refers to the inter-SN PSCell change procedure.

[0084] Currently, NR does not support intra-SN PSCell changes that affect the MN based on conditions, nor does it support inter-SN PSCell changes based on conditions (which can also be called inter-SN SN changes based on conditions), nor does it support SN addition based on conditions. Therefore, the following technical solutions of the embodiments of this application are proposed. The technical solutions of the embodiments of this application can enable the above scenarios to be supported in the standard through negotiation between the MN and the SN.

[0085] Figure 4Flow diagram of the information configuration method provided by the embodiments of this application Figure 1 , such as Figure 4 shown, the information configuration method includes the following steps:

[0086] Step 401: The MN sends a first request message to the SN, and the first request message is used to request the configuration of conditional PSCell change.

[0087] Step 402: The MN receives a first response message sent by the SN, and the first response message is used to indicate that the SN accepts the first request message.

[0088] Step 403: The MN sends at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0089] The embodiments of this application are applied to conditional intra-SN PSCell change. Among them, intra-SN PSCell change means that the change of the PSCell is carried out inside the SN. For example, the SN covers cell 1, cell 2, and cell 3, where cell 1 is the PSCell, and cell 2 and cell 3 are SCell; after the intra-SN PSCell change, cell 2 is the PSCell, and cell 1 and cell 3 are SCell.

[0090] In the embodiments of this application, when the MN sends a first request message to the SN, optionally, at least one of the following information can also be sent. Among them, the following information can be sent in the first request message or sent separately. The following situation takes sending in the first request message as an example.

[0091] · In an optional manner, the first request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the MN.

[0092] Further, optionally, 1) when the SN accepts the first PSCell change condition configuration, the PSCell change condition configuration sent by the MN to the terminal device is the first PSCell change condition configuration.

[0093] Further, optionally, 2) when the SN does not accept the configuration of the first PSCell change condition, the first response message carries a second PSCell change condition configuration, where the second PSCell change condition configuration is the PSCell change condition configuration revised by the SN, and the PSCell change condition configuration sent by the MN to the terminal device is the second PSCell change condition configuration.

[0094] · In an optional manner, the first request message carries first indication information, where the first indication information is used to indicate the PSCell change type.

[0095] Here, the PSCell change type is intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN.

[0096] · In an optional manner, when the PSCell change type indicated by the first indication information is inter-SN PSCell change or intra-SN PSCell change that affects the MN, the first request message further carries first restriction constraint information, where the first restriction constraint information is used to restrict the SN from configuring the radio resource configuration on the SN side for the terminal device.

[0097] Further, optionally, when the SN does not accept the first restriction constraint information, the first response message carries second restriction constraint information, where the second restriction constraint information is the restriction constraint information revised by the SN.

[0098] · In an optional manner, the first request message carries the measurement result of the terminal device, where the measurement result is used for the SN to configure the target PSCell configuration.

[0099] In an optional implementation manner of the present application, intra-SN PSCell change belongs to the PSCell change initiated by the MN and affecting the MN, and all the content of the PSCell change configuration is sent to the terminal device on the MN side (refer to the following Example 1).

[0100] For this scenario, the first response message carries the target PSCell configuration configured by the SN; the MN sends the PSCell change condition configuration and the target PSCell configuration to the terminal device; or, the MN sends the PSCell change condition configuration, the target PSCell configuration, and the radio resource configuration on the MN side to the terminal device.

[0101] In an alternative embodiment of the present application, the intra-SN PSCell change belongs to the PSCell change initiated by the MN and affecting the MN. Part of the PSCell change configuration is sent to the terminal device on the MN side, and the other part is sent to the terminal device on the SN side (refer to Example 2 below).

[0102] For this scenario, the MN sends the PSCell change condition configuration to the terminal device, where the target PSCell configuration is sent to the terminal device by the SN; or, the MN sends the PSCell change condition configuration and the radio resource configuration on the MN side to the terminal device, where the target PSCell configuration is sent to the terminal device by the SN.

[0103] It should be noted that the configurations sent by the MN and the SN to the terminal device can be a configuration list, and the configurations on the MN side and the SN side can correspond one by one according to their respective orders in the configuration list. Specifically, the configurations on the MN side and the SN side are associated according to the configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0104] Figure 5 FIG. 2 is a schematic flowchart of the information configuration method provided by the embodiment of the present application. As Figure 5 shown, the information configuration method includes the following steps:

[0105] Step 501: The MN receives a first request message sent by the SN, where the first request message is used to request the configuration of the conditional PSCell change.

[0106] Step 502: The MN sends a first response message to the SN, where the first response is used to indicate that the MN accepts the first request message.

[0107] Step 503: The MN sends at least one of the following to the terminal device: the PSCell change condition configuration, the target PSCell configuration, and the radio resource configuration on the MN side.

[0108] The embodiment of the present application is applied to the conditional intra-SN PSCell change (Conditional intra-SN PSCell change). Among them, the intra-SN PSCell change means that the change of the PSCell occurs within the SN.

[0109] In an embodiment of the present application, when the SN sends a first request message to the MN, optionally, at least one of the following information may also be sent. Among them, the following information may be carried in the first request message for sending, or may be sent separately. The following cases take sending in the first request message as an example.

[0110] · In an optional manner, the first request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is a PSCell change condition configuration recommended by the SN.

[0111] Further, optionally, 1) when the MN accepts the first PSCell change condition configuration, the PSCell change condition configuration sent by the MN to the terminal device is the first PSCell change condition configuration.

[0112] Further, optionally, 2) when the MN does not accept the first PSCell change condition configuration, the first response message carries a second PSCell change condition configuration, the second PSCell change condition configuration is a PSCell change condition configuration revised by the MN, and the PSCell change condition configuration sent by the MN to the terminal device is the second PSCell change condition configuration.

[0113] · In an optional manner, the first request message carries first indication information, and the first indication information is used to indicate the PSCell change type.

[0114] Here, the PSCell change type is an intra-SN PSCell change, or an inter-SN PSCell change, or an intra-SN PSCell change that does not affect the MN, or an intra-SN PSCell change that affects the MN.

[0115] · When the PSCell change type indicated by the first indication information is an inter-SN PSCell change or an intra-SN PSCell change that affects the MN, the first request message further carries first restriction constraint information, and the first restriction constraint information is used to restrict the SN from configuring the radio resource configuration on the SN side for the terminal device.

[0116] Further, optionally, when the MN does not accept the first restriction constraint information, the first response message carries second restriction constraint information, and the second restriction constraint information is the restriction constraint information revised by the MN.

[0117] In an alternative embodiment of the present application, the intra-SN PSCell change belongs to the PSCell change initiated by the SN and affecting the MN. All the contents of the PSCell change configuration are sent to the terminal device on the MN side (refer to Example 3 below).

[0118] For this scenario, the first request message carries the target PSCell configuration configured by the SN; the MN sends the PSCell change condition configuration and the target PSCell configuration to the terminal device; or, the MN sends the PSCell change condition configuration, the target PSCell configuration, and the radio resource configuration on the MN side to the terminal device.

[0119] In an alternative embodiment of the present application, the intra-SN PSCell change belongs to the PSCell change initiated by the SN and affecting the MN. Part of the content of the PSCell change configuration is sent to the terminal device on the MN side, and the other part is sent to the terminal device on the SN side (refer to Example 4 below).

[0120] For this scenario, the MN sends the PSCell change condition configuration to the terminal device, where the target PSCell configuration is sent to the terminal device by the SN; or, the MN sends the PSCell change condition configuration and the radio resource configuration on the MN side to the terminal device, where the target PSCell configuration is sent to the terminal device by the SN; or, the MN sends the radio resource configuration on the MN side, where the PSCell change condition configuration and the target PSCell configuration are sent to the terminal device by the SN.

[0121] It should be noted that the configurations sent by the MN and the SN to the terminal device can be a configuration list, and the configurations on the MN side and the SN side can correspond one by one according to their respective orders in the configuration list. Specifically, the configurations on the MN side and the SN side are associated according to the configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0122] Figure 6 FIG. 3 is a schematic flowchart of the information configuration method provided by the embodiments of the present application. As Figure 6 shown, the information configuration method includes the following steps:

[0123] Step 601: The MN sends a second request message to the target SN, and the second request message is used to request the configuration of the SN addition based on conditions.

[0124] Step 602: The MN receives a second response message sent by the target SN, and the second response message is used to indicate that the target SN accepts the second request message.

[0125] Step 603: The MN sends at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0126] The embodiments of this application are applied to conditional inter-SN PSCell change (also known as conditional SN change). Among them, inter-SN PSCell change means that the change of the PSCell is carried out between SNs. For example, SN1 covers cell 1 and cell 2, and SN2 covers cell 3 and cell 4. Among them, the PSCell can be changed from cell 1 to cell 3.

[0127] In the embodiments of this application, when the MN sends a second request message to the target SN, optionally, it can also send at least one of the following information. Among them, the following information can be carried in the second request message and sent, or can be sent separately. The following situation takes being carried in the second request message as an example.

[0128] · In an optional manner, the second request message carries a first SN addition condition configuration, and the first SN addition condition configuration is the SN addition condition configuration recommended by the MN.

[0129] Further, optionally, 1) when the target SN accepts the first SN addition condition configuration, the target SN addition condition configuration sent by the MN to the terminal device is the first SN addition condition configuration.

[0130] Further, optionally, 2) when the target SN does not accept the first SN addition condition configuration, the second response message carries a second SN addition condition configuration, and the second SN addition condition configuration is the SN addition condition configuration revised by the target SN. The SN addition condition configuration sent by the MN to the terminal device is the second SN addition condition configuration.

[0131] · In an optional manner, the second request message carries first constraint information, and the first constraint information is used to restrict the target SN from configuring radio resource configuration on the target SN side for the terminal device.

[0132] Further, optionally, when the target SN does not accept the first constraint information, the second response message carries second constraint information, and the second constraint information is the constraint information revised by the target SN.

[0133] · In an optional manner, the second request message carries the measurement result of the terminal device, and the measurement result is used by the target SN to configure at least one of the following: target SN configuration, target PSCell configuration.

[0134] In an optional implementation manner of this application, the inter-SN PSCell change belongs to the PSCell change initiated by the MN, and all the contents of the PSCell change configuration are sent to the terminal device on the MN side (refer to Example 5 below).

[0135] For this scenario, the second response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration. The MN sends the SN addition condition configuration to the terminal device, and at least one of the following: target SN configuration, target PSCell configuration; or, the MN sends the SN addition condition configuration, the radio resource configuration on the MN side, and at least one of the following: target SN configuration, target PSCell configuration.

[0136] In addition, the above technical solution can also be applied to conditional SN addition, where the SN addition belongs to the SN addition initiated by the MN, and all the contents of the SN addition configuration are sent to the terminal device on the MN side (refer to Example 8 below).

[0137] In an optional implementation manner of this application, the inter-SN PSCell change belongs to the PSCell change initiated by the SN, and all the contents of the PSCell change configuration are sent to the terminal device on the MN side (refer to Example 6 below).

[0138] For this scenario, before the MN sends the second request message to the target SN, the method further includes: the MN receives a third request message sent by the original SN, and the third request message is used to request the configuration of the conditional PSCell change; the MN sends a third response message to the original SN, and the third response message is used to indicate that the MN accepts the third request message.

[0139] · In an optional manner, the third request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the original SN.

[0140] Furthermore, optionally, when the MN does not accept the first PSCell change condition configuration, the MN revises the first PSCell change condition configuration to a second PSCell change condition configuration.

[0141] · In an optional manner, the third request message further carries identification information of a target PSCell corresponding to the first PSCell change condition configuration, where the target PSCell is one of the cells of the target SN.

[0142] Further, optionally, the identification information of the target PSCell includes at least one of the following: PCI, frequency point, N-CGI, base station identification.

[0143] · In an optional manner, the third request message carries first indication information, where the first indication information is used to indicate the PSCell change type.

[0144] Here, the PSCell change type is intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN.

[0145] Based on the above conditional PSCell change configuration or conditional SN change configuration, the terminal device triggers a random access procedure to the target SN based on the SN addition condition configuration, and releases the original SN in any of the following ways:

[0146] Way 1: The target SN sends an original SN release request message to the MN to trigger the MN to request the original SN to release resources; or,

[0147] Way 2: The target SN sends an original SN release request message to the original SN to trigger the original SN to release resources.

[0148] Figure 7 Flow schematic of the information configuration method provided by the embodiments of this application Figure 4 , as Figure 7 shown, the information configuration method includes the following steps:

[0149] Step 701: The original SN sends a fourth request message to the target SN, where the fourth request message is used to request the configuration of conditional PSCell change.

[0150] Step 702: The original SN receives a fourth response message sent by the target SN, where the fourth response message indicates that the target SN accepts the fourth request message, and the fourth response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration.

[0151] Step 703: The original SN sends the PSCell change condition configuration and at least one of the following to the MN: target SN configuration, target PSCell configuration.

[0152] The embodiments of this application are applied to conditional inter-SN PSCell change, where the inter-SN PSCell change belongs to the PSCell change initiated by the SN. Part of the PSCell change configuration is sent by the MN side to the terminal device, and the other part is sent by the original SN side to the terminal device (refer to Example Seven below). It should be noted that the conditional inter-SN PSCell change can also be referred to as conditional SN change.

[0153] In the embodiments of this application, the relevant configurations on the MN side and the original SN side can be implemented in any of the following ways:

[0154] Method 1: The PSCell change condition configuration and at least one of the following: target SN configuration, target PSCell configuration, are sent by the MN to the terminal device; or,

[0155] Method 2: The PSCell change condition configuration and at least one of the following: target SN configuration, target PSCell configuration, are sent by the original SN to the terminal device; or,

[0156] Method 3: The PSCell change condition configuration is sent by the MN to the terminal device, and the target SN configuration and / or target PSCell configuration are sent by the original SN to the terminal device; or,

[0157] Method 4: The PSCell change condition configuration is sent by the original SN to the terminal device, and the target SN configuration and / or target PSCell configuration are sent by the MN to the terminal device.

[0158] Furthermore, optionally, the radio resource configuration on the MN side is sent by the MN to the terminal device.

[0159] It should be noted that the configurations sent by the MN and the original SN to the terminal device can be a configuration list, and the configurations on the MN side and the original SN side can correspond one by one according to their order in the configuration list. Specifically, the configurations on the MN side and the original SN side are associated according to the configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0160] · In an optional manner, the fourth request message carries a first PSCell change condition configuration and / or first restriction information. The first PSCell change condition configuration is the PSCell change condition configuration proposed by the original SN, and the first restriction information is used to restrict the SN from configuring radio resource configurations on the SN side for the terminal device.

[0161] Further, optionally, when the target SN does not accept the first PSCell change condition configuration and / or the first restriction information, the fourth response message further carries a second PSCell change condition configuration and / or second restriction information. The second PSCell change condition configuration is the PSCell change condition configuration revised by the target SN, and the second restriction information is the restriction information revised by the target SN.

[0162] Based on the above conditional PSCell change configuration or conditional SN change configuration, the terminal device triggers a random access procedure to the target SN based on the PSCell change condition configuration, and releases the original SN in any of the following ways:

[0163] Way 1: The target SN sends an original SN release request message to the MN to trigger the MN to request the original SN to release resources; or,

[0164] Way 2: The target SN sends an original SN release request message to the original SN to trigger the original SN to release resources.

[0165] The technical solutions of the embodiments of the present application are illustrated below in conjunction with specific application examples.

[0166] Example 1:

[0167] This example is a conditional intra-SN PSCell change. Among them, this intra-SN PSCell change belongs to a PSCell change initiated by the MN and affecting the MN of the PSCell. All the contents of the PSCell change configuration are sent to the terminal device on the MN side. The PSCell change process of this example includes the following steps:

[0168] 1. The MN sends a configuration request to the SN, and this configuration request is used to indicate the configuration of conditional PSCell change.

[0169] Here, optionally, the MN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0170] Further, optionally, the MN also sends the measurement results of the terminal device to the SN, and allows the SN to determine the target PSCell.

[0171] Further, optionally, the MN also sends the condition configuration of the PSCell change recommended by the MN (abbreviated as the PSCell change condition configuration) to the SN.

[0172] Further, optionally, the MN carries an indication information in the configuration request sent to the SN, and this indication information is used to indicate the type of PSCell change. Here, the type of PSCell change can be intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN, and so on.

[0173] Further, optionally, if the type of PSCell change is inter-SN PSCell change or intra-SN PSCell change that affects the MN, the MN also sends the restriction constraint information (the restriction constraint information on the SN side) to the SN, and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0174] 2.1. If the SN accepts the configuration request of the MN, the SN generates the configuration information of the target PSCell (abbreviated as the target PSCell configuration) or the configuration information of the SN (abbreviated as the SN configuration), and sends it to the MN.

[0175] Here, the SN's acceptance of the MN's configuration request can be divided into the following two cases:

[0176] I) The SN accepts the condition configuration and / or the restriction constraint information. Further, the SN accepts the configuration request of the MN.

[0177] II) The SN does not accept the condition configuration and / or the restriction constraint information. Further, the SN modifies the condition configuration and / or the restriction constraint information and then accepts the configuration request of the MN, and sends the revised condition configuration and / or the revised restriction constraint information to the MN.

[0178] 2.2. If the SN does not accept the configuration request of the MN, the SN rejects the configuration request of the MN and ends the process.

[0179] Here, the SN's non-acceptance of the MN's configuration request can be divided into the following two cases:

[0180] I) The SN does not accept the configuration request of the MN.

[0181] II) The SN does not accept the condition configuration and / or the restriction constraint information. Further, the SN does not accept the configuration request of the MN.

[0182] 3.1. If the SN accepts the configuration request from the MN and does not modify the conditional configuration and / or restriction constraint information, or, if the SN accepts the configuration request from the MN, modifies the conditional configuration and / or restriction constraint information, and the MN accepts the modified conditional configuration and / or restriction constraint information, then the MN sends the following information to the terminal device:

[0183] a) The conditional configuration (or the revised conditional configuration), the target PSCell configuration (or the SN configuration); or,

[0184] b) The conditional configuration (or the revised conditional configuration), the target PSCell configuration (or the SN configuration), and the radio resource configuration on the MN side.

[0185] 3.2. If the SN accepts the configuration request from the MN, modifies the conditional configuration and / or restriction constraint information, but the MN does not accept the modified conditional configuration and / or restriction constraint information, then the MN may reject the modification and end the process.

[0186] Example 2:

[0187] This example is for conditional intra-SN PSCell change, where the intra-SN PSCell change is initiated by the MN and affects the PSCell of the MN. Part of the PSCell change configuration is sent to the terminal device on the MN side, and the other part is sent to the terminal device on the SN side. The PSCell change process of this example includes the following steps:

[0188] 1. The MN sends a configuration request to the SN, and this configuration request is used to indicate the configuration of the conditional PSCell change.

[0189] Here, optionally, the MN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0190] Furthermore, optionally, the MN also sends the measurement result of the terminal device to the SN to let the SN determine the target PSCell.

[0191] Furthermore, optionally, the MN also sends the conditional configuration of the PSCell change recommended by the MN (abbreviated as the PSCell change conditional configuration) to the SN.

[0192] Further, optionally, the MN carries an indication information in the configuration request sent to the SN, and the indication information is used to indicate the type of PSCell change. Here, the type of PSCell change may be intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN, and so on.

[0193] Further, optionally, if the type of PSCell change is inter-SN PSCell change or intra-SN PSCell change that affects the MN, the MN also sends restriction constraint information (restriction constraint information on the SN side) to the SN, and the restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0194] 2.1. If the SN accepts the configuration request of the MN, the SN generates the configuration information of the target PSCell (referred to as the target PSCell configuration for short) or the configuration information of the SN (referred to as the SN configuration for short).

[0195] Here, the SN's acceptance of the MN's configuration request can be divided into the following two cases:

[0196] I) The SN accepts the conditional configuration and / or restriction constraint information. Further, the SN accepts the configuration request of the MN.

[0197] II) The SN does not accept the conditional configuration and / or restriction constraint information. Further, the SN modifies the conditional configuration and / or restriction constraint information and then accepts the configuration request of the MN, and sends the revised conditional configuration and / or revised restriction constraint information to the MN.

[0198] 2.2. If the SN does not accept the configuration request of the MN, the SN rejects the configuration request of the MN and ends the process.

[0199] Here, the SN's non-acceptance of the MN's configuration request can be divided into the following two cases:

[0200] I) The SN does not accept the configuration request of the MN.

[0201] II) The SN does not accept the conditional configuration and / or restriction constraint information. Further, the SN does not accept the configuration request of the MN.

[0202] 3.1. If the SN accepts the configuration request of the MN and does not modify the conditional configuration and / or restriction constraint information, or, the SN accepts the configuration request of the MN and modifies the conditional configuration and / or restriction constraint information and the MN accepts the modified conditional configuration and / or restriction constraint information, then the MN sends the following information to the terminal device:

[0203] a) Conditional configuration (or revised conditional configuration); or,

[0204] b) Conditional configuration (or revised conditional configuration), radio resource configuration on the MN side.

[0205] In addition, the SN sends the target PSCell configuration (or SN configuration) to the terminal device.

[0206] 3.2. If the SN accepts the configuration request from the MN and modifies the conditional configuration and / or restriction constraint information, but the MN does not accept the modified conditional configuration and / or restriction constraint information, then the MN can reject the modification and end the process.

[0207] 4. The terminal device receives the conditional configuration list (or revised conditional configuration list) sent by the MN. Optionally, it also receives the radio resource configuration list sent by the MN. The terminal device receives the target PSCell configuration list sent by the SN. The terminal device considers that the configurations in the above two lists are associated one by one in the order in their respective lists. That is, the index number of the conditional configuration (optionally, the radio resource configuration on the MN side) in the first list is the same as the index number of the target PSCell configuration in the second list, forming a complete PSCell change configuration. A complete PSCell change configuration includes: conditional configuration, target PSCell configuration, radio resource configuration on the MN side.

[0208] Example 3:

[0209] This example is a conditional intra-SN PSCell change, where the intra-SN PSCell change is an SN-initiated PSCell change that affects the MN, and all the content of the PSCell change configuration is sent to the terminal device on the MN side. The PSCell change process of this example includes the following steps:

[0210] 1. The SN sends a configuration request to the MN, and this configuration request is used to indicate the configuration of a conditional PSCell change.

[0211] Here, optionally, the SN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0212] Furthermore, optionally, the SN also sends the conditional configuration of the PSCell change recommended by the SN (abbreviated as the PSCell change conditional configuration) to the MN.

[0213] Further, optionally, the SN carries an indication information in the configuration request sent to the MN, and this indication information is used to indicate the type of PSCell change. Here, the type of PSCell change may be an intra-SN PSCell change, or an inter-SN PSCell change, or an intra-SN PSCell change that does not affect the MN, or an intra-SN PSCell change that affects the MN, etc.

[0214] Further, optionally, if the type of PSCell change is an inter-SN PSCell change or an intra-SN PSCell change that affects the MN, the SN also sends restriction constraint information (the restriction constraint information on the SN side) to the MN, and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0215] Further, optionally, the SN also configures and sends the corresponding target PSCell configuration for the PSCell change conditions to the MN.

[0216] 2.1. If the MN accepts the configuration request from the SN, the MN generates the radio resource configuration on the MN side.

[0217] Here, the MN's acceptance of the SN's configuration request can be divided into the following two cases:

[0218] I) The MN accepts the conditional configuration and / or the restriction constraint information, and further, the MN accepts the SN's configuration request.

[0219] II) The MN does not accept the conditional configuration and / or the restriction constraint information. Further, the MN modifies the conditional configuration and / or the restriction constraint information and then accepts the SN's configuration request, and sends the revised conditional configuration and / or the revised restriction constraint information to the SN.

[0220] Here, if the MN accepts the SN's configuration request, the MN sends the following information to the terminal device:

[0221] a) The conditional configuration (or the revised conditional configuration), the target PSCell configuration (or the SN configuration); or,

[0222] b) The conditional configuration (or the revised conditional configuration), the target PSCell configuration (or the SN configuration), the radio resource configuration on the MN side.

[0223] 2.2. If the MN does not accept the SN's configuration request, the MN rejects the SN's configuration request and ends the process.

[0224] Here, the MN's non-acceptance of the SN's configuration request can be divided into the following two cases:

[0225] I) The MN does not accept the configuration request from the SN.

[0226] II) The MN does not accept the conditional configuration and / or the restriction constraint information. Further, the MN does not accept the configuration request from the SN.

[0227] Example 4:

[0228] This example is about conditional intra-SN PSCell change, where the intra-SN PSCell change is initiated by the SN and affects the PSCell of the MN. Part of the content of the PSCell change configuration is sent to the terminal device on the MN side, and the other part is sent to the terminal device on the SN side. The PSCell change process of this example includes the following steps:

[0229] 1. The SN sends a configuration request to the MN, and this configuration request is used to indicate the configuration of conditional PSCell change.

[0230] Here, optionally, the SN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0231] Further, optionally, the SN also sends the conditional configuration of the PSCell change recommended by the SN (abbreviated as the PSCell change condition configuration) to the MN.

[0232] Further, optionally, the SN carries an indication information in the configuration request sent to the MN, and this indication information is used to indicate the type of the PSCell change. Here, the type of the PSCell change can be intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN, etc.

[0233] Further, optionally, if the type of the PSCell change is inter-SN PSCell change or intra-SN PSCell change that affects the MN, the SN also sends the restriction constraint information (the restriction constraint information on the SN side) to the MN, and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0234] Further, optionally, the SN also sends the target PSCell configuration corresponding to the PSCell change condition configuration to the MN.

[0235] 2.1. If the MN accepts the configuration request from the SN, the MN generates the radio resource configuration on the MN side.

[0236] Here, when the MN accepts the configuration request from the SN, it can be divided into the following two cases:

[0237] I) The MN accepts the conditional configuration and / or restriction constraint information. Further, the MN accepts the configuration request from the SN.

[0238] II) The MN does not accept the conditional configuration and / or restriction constraint information. Further, after modifying the conditional configuration and / or restriction constraint information, the MN accepts the configuration request from the SN and sends the revised conditional configuration and / or revised restriction constraint information to the SN.

[0239] Here, if the MN accepts the configuration request from the SN, the MN sends the following information to the terminal device:

[0240] a) Conditional configuration (or revised conditional configuration); or,

[0241] b) Conditional configuration (or revised conditional configuration), radio resource configuration on the MN side; or,

[0242] c) Radio resource configuration on the MN side.

[0243] In addition, the SN sends the following information to the terminal device:

[0244] d) Target PSCell configuration (or SN configuration). Here, it can be implemented in combination with a) or b) above.

[0245] e) Conditional configuration (or revised conditional configuration), target PSCell configuration (or SN configuration). Here, it can be implemented in combination with c) above.

[0246] 2.2 If the MN does not accept the configuration request from the SN, the MN rejects the configuration request from the SN and ends the process.

[0247] Here, when the MN does not accept the configuration request from the SN, it can be divided into the following two cases:

[0248] I) The MN does not accept the configuration request from the SN.

[0249] II) The MN does not accept the conditional configuration and / or restriction constraint information. Further, the MN does not accept the configuration request from the SN.

[0250] 3. The terminal device receives the condition configuration list (or the revised condition configuration list) sent by the MN. Optionally, it also receives the radio resource configuration list sent by the MN. The terminal device receives the target PSCell configuration list sent by the SN. Optionally, it also receives the condition configuration list sent by the SN. The terminal device considers that the configurations in the above two lists are associated one by one in the order in their respective lists. That is, the index number of the condition configuration (optionally, the radio resource configuration on the MN side) in the first list is the same as the index number of the target PSCell configuration in the second list, forming a complete PSCell change configuration. A complete PSCell change configuration includes: condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0251] Example 5:

[0252] This example is a conditional inter-SN PSCell change. Among them, this inter-SN PSCell change belongs to the PSCell change initiated by the MN, and all the contents of the PSCell change configuration are sent to the terminal device on the MN side. It should be noted that the conditional inter-SN PSCell change can also be called a conditional SN change. The PSCell change process in this example includes the following steps:

[0253] 1. The MN sends a configuration request to the target SN, and this configuration request is used to indicate the configuration of conditional SN addition.

[0254] Here, optionally, the MN can trigger the PSCell change process (or the SN addition process) based on the measurement report reported by the terminal device.

[0255] Furthermore, optionally, the MN also sends the measurement result of the terminal device to the target SN to let the target SN determine the target PSCell.

[0256] Furthermore, optionally, the MN also sends the condition configuration for SN addition recommended by the MN (abbreviated as SN addition condition configuration) to the target SN.

[0257] Furthermore, optionally, the MN also sends the restriction constraint information (the restriction constraint information on the original SN side) to the target SN, and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0258] 2.1. If the target SN accepts the configuration request from the MN, the target SN generates the configuration information of the target PSCell (referred to as the target PSCell configuration) and / or the configuration information of the target SN (referred to as the target SN configuration), and sends it to the MN.

[0259] Here, the target SN accepting the configuration request from the MN can be divided into the following two cases:

[0260] I) The target SN accepts the conditional configuration and / or the restriction constraint information. Further, the target SN accepts the configuration request from the MN.

[0261] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, the target SN modifies the conditional configuration and / or the restriction constraint information and then accepts the configuration request from the MN, and sends the revised conditional configuration and / or the revised restriction constraint information to the MN.

[0262] 2.2. If the target SN does not accept the configuration request from the MN, the target SN rejects the configuration request from the MN and ends the process.

[0263] Here, the target SN not accepting the configuration request from the MN can be divided into the following two cases:

[0264] I) The target SN does not accept the configuration request from the MN.

[0265] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, the target SN does not accept the configuration request from the MN.

[0266] 3.1. If the target SN accepts the configuration request from the MN and does not modify the conditional configuration and / or the restriction constraint information, or, the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information and the MN accepts the modified conditional configuration and / or the restriction constraint information, then the MN sends the following information to the terminal device:

[0267] a) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration; or,

[0268] b) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration, the radio resource configuration on the MN side.

[0269] 3.2. If the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information, but the MN does not accept the modified conditional configuration and / or the restriction constraint information, then the MN can reject the modification and end the process.

[0270] 4. If the determination condition configuration (or the revised condition configuration) of the terminal device is satisfied, a random access procedure is triggered to the target PSCell. Among them, the release of the original SN can be adopted in any of the following ways:

[0271] I) The target SN sends a request for releasing the original SN to the MN; the MN sends a release request to the original SN; the original SN releases the resources and notifies the MN; the MN notifies the target SN that the original SN has been released.

[0272] II) The target SN sends a request for releasing the original SN to the original SN; the original SN releases the resources and notifies the target SN; the target SN notifies the MN that the original SN has been released.

[0273] Example 6:

[0274] This example is about conditional inter-SN PSCell change. Among them, this inter-SN PSCell change belongs to the PSCell change initiated by the SN, and all the content of the PSCell change configuration is sent to the terminal device on the MN side. It should be noted that the conditional inter-SN PSCell change can also be called conditional SN change. The PSCell change process of this example includes the following steps:

[0275] 1. The original SN sends a configuration request to the MN, and this configuration request is used to indicate the configuration of the conditional PSCell change.

[0276] Here, optionally, the original SN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0277] Furthermore, optionally, the original SN also sends the conditional configuration of the PSCell change proposed by the original SN (abbreviated as the PSCell change condition configuration) to the MN.

[0278] Furthermore, optionally, the original SN also sends the identification information of the PSCell of the target SN corresponding to the PSCell change condition configuration. Among them, the identification information of the PSCell includes at least one of the following: PCI, frequency point, N-CGI, gNB id.

[0279] Further, optionally, the original SN carries an indication information in the configuration request sent to the MN, and this indication information is used to indicate the type of PSCell change. Here, the type of PSCell change can be intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN, etc.

[0280] 2. If the MN accepts the configuration request of the original SN, the MN sends a configuration request to the target SN, and this configuration request is used to indicate the configuration of condition-based SN addition.

[0281] Here, the MN's acceptance of the original SN's configuration request can be divided into the following two cases:

[0282] I) The MN accepts the PSCell change condition configuration. Further, the MN accepts the configuration request of the original SN.

[0283] II) The MN does not accept the PSCell change condition configuration. Further, the MN accepts the configuration request of the original SN after modifying the PSCell change condition configuration.

[0284] Further, optionally, the MN also sends the measurement result of the terminal device to the target SN to let the target SN determine the target PSCell.

[0285] Further, optionally, the MN also sends the condition configuration of the SN addition recommended by the MN (abbreviated as SN addition condition configuration) to the target SN.

[0286] Further, optionally, the MN also sends the restriction constraint information (the restriction constraint information on the original SN side) to the target SN, and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0287] 3.1. If the target SN accepts the configuration request of the MN, the target SN generates the configuration information of the target PSCell (abbreviated as target PSCell configuration) and / or the configuration information of the target SN (abbreviated as target SN configuration), and sends them to the MN.

[0288] Here, the target SN's acceptance of the MN's configuration request can be divided into the following two cases:

[0289] I) The target SN accepts the condition configuration and / or the restriction constraint information. Further, the target SN accepts the configuration request of the MN.

[0290] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, after modifying the conditional configuration and / or the restriction constraint information, the target SN accepts the configuration request from the MN and sends the revised conditional configuration and / or the revised restriction constraint information to the MN.

[0291] 3.2. If the target SN does not accept the configuration request from the MN, the target SN rejects the configuration request from the MN and ends the process.

[0292] Here, the situation where the target SN does not accept the configuration request from the MN can be divided into the following two cases:

[0293] I) The target SN does not accept the configuration request from the MN.

[0294] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, the target SN does not accept the configuration request from the MN.

[0295] 4.1. If the target SN accepts the configuration request from the MN and does not modify the conditional configuration and / or the restriction constraint information, or, the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information and the MN accepts the modified conditional configuration and / or the restriction constraint information, then the MN sends the following information to the terminal device:

[0296] a) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration; or,

[0297] b) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration, the radio resource configuration on the MN side.

[0298] 4.2. If the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information, but the MN does not accept the modified conditional configuration and / or the restriction constraint information, then the MN can reject the modification and end the process.

[0299] 5. If the terminal device determines that the conditional configuration (or the revised conditional configuration) is satisfied, it triggers a random access process to the target PSCell. Among them, the release of the original SN can be carried out in any of the following ways:

[0300] I) The target SN sends a request for releasing the original SN to the MN; the MN sends a release request to the original SN; the original SN releases the resources and notifies the MN; the MN notifies the target SN that the original SN has been released.

[0301] II) The target SN sends a request for releasing the original SN to the original SN; the original SN releases the resources and notifies the target SN; the target SN notifies the MN that the original SN has been released.

[0302] Example 7:

[0303] This example is about conditional inter-SN PSCell change, where this inter-SN PSCell change belongs to the PSCell change initiated by the SN. Part of the PSCell change configuration is sent to the terminal device on the MN side, and the other part is sent to the terminal device on the SN side. It should be noted that conditional inter-SN PSCell change can also be referred to as conditional SN change. The PSCell change process in this example includes the following steps:

[0304] 1. The original SN sends a configuration request to the target SN, and this configuration request is used to indicate the configuration of conditional PSCell change.

[0305] Here, optionally, the original SN can trigger the PSCell change process based on the measurement report reported by the terminal device.

[0306] Furthermore, optionally, the original SN also sends the conditional configuration of the PSCell change recommended by the original SN (abbreviated as the PSCell change condition configuration) to the target SN.

[0307] Furthermore, optionally, the original SN also sends restriction constraint information (restriction constraint information on the original SN side), and this restriction constraint information is used to determine the restriction constraint conditions for the SN to configure the radio resources of the terminal device.

[0308] 2. If the target SN accepts the configuration request of the original SN, the target SN generates the configuration information of the target PSCell (abbreviated as the target PSCell configuration) and / or the configuration information of the target SN (abbreviated as the target SN configuration), and sends them to the original SN.

[0309] Here, the target SN's acceptance of the original SN's configuration request can be divided into the following two cases:

[0310] I) The target SN accepts the conditional configuration and / or the restriction constraint information. Furthermore, the target SN accepts the configuration request of the original SN.

[0311] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Furthermore, the target SN modifies the conditional configuration and / or the restriction constraint information and then accepts the configuration request of the original SN, and sends the revised conditional configuration and / or the revised restriction constraint information to the original SN.

[0312] 3. The original SN sends the conditional configuration (or the revised conditional configuration), the target PSCell configuration and / or the target SN configuration to the MN.

[0313] Furthermore, optionally, the original SN also sends restriction constraint information (or revised restriction constraint information) to the MN.

[0314] 4.1. If the MN accepts the conditional configuration (or revised conditional configuration) and / or the restriction constraint information (or revised restriction constraint information), the MN initiates an SN addition procedure to the target SN or the target PSCell; on the other hand, the MN sends the following information to the terminal device:

[0315] a) The conditional configuration (or revised conditional configuration), the target SN configuration and / or the target PSCell configuration; or,

[0316] b) The conditional configuration (or revised conditional configuration), the target SN configuration and / or the target PSCell configuration, the radio resource configuration on the MN side; or,

[0317] c) The conditional configuration (or revised conditional configuration), the radio resource configuration on the MN side; or,

[0318] d) The radio resource configuration on the MN side; or,

[0319] e) The target SN configuration and / or the target PSCell configuration, the radio resource configuration on the MN side.

[0320] In addition, the SN sends the following information to the terminal device:

[0321] f) The conditional configuration (or revised conditional configuration), the target SN configuration and / or the target PSCell configuration. Here, it can be implemented in combination with the above d).

[0322] g) The conditional configuration (or revised conditional configuration). Here, it can be implemented in combination with the above e).

[0323] 4.2. If the MN does not accept the conditional configuration (or revised conditional configuration) and / or the restriction constraint information (or revised restriction constraint information), the MN rejects the configuration request and ends the process.

[0324] 5. The terminal device receives the configuration list sent by the MN and the configuration list sent by the SN. The terminal device considers that the configurations in the above two lists are associated one by one in the order of their respective positions in the lists. That is, the index numbers of the configurations in the first list are the same as those of the configurations in the second list, forming a complete PSCell change configuration. A complete PSCell change configuration includes: conditional configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0325] 6. If the determination condition configuration (or the revised condition configuration) of the terminal device is satisfied, a random access procedure is triggered to the target PSCell. Among them, the release of the original SN can be adopted in any of the following ways:

[0326] I) The target SN sends a request for releasing the original SN to the MN; the MN sends a release request to the original SN; the original SN releases the resources and notifies the MN; the MN notifies the target SN that the original SN has been released.

[0327] II) The target SN sends a request for releasing the original SN to the original SN; the original SN releases the resources and notifies the target SN; the target SN notifies the MN that the original SN has been released.

[0328] Example VIII

[0329] This example is for conditional SN addition, where the SN addition belongs to the SN addition initiated by the MN, and all the content of the SN addition configuration is sent from the MN side to the terminal device. The SN addition process in this example includes the following steps:

[0330] 1. The MN sends a configuration request to the target SN, and this configuration request is used to indicate the configuration of conditional SN addition.

[0331] Here, optionally, the MN can trigger the SN addition process based on the measurement report reported by the terminal device.

[0332] Further, optionally, the MN also sends the measurement result of the terminal device to the target SN to let the target SN determine the target PSCell.

[0333] Further, optionally, the MN also sends the conditional configuration of SN addition recommended by the MN (abbreviated as SN addition conditional configuration) to the target SN.

[0334] Further, optionally, the MN also sends restriction constraint information, and this restriction constraint information is used to determine the restriction constraint conditions for the target SN to configure the radio resources of the terminal device.

[0335] 2.1. If the target SN accepts the configuration request of the MN, the target SN generates the configuration information of the target PSCell (abbreviated as target PSCell configuration) and / or the configuration information of the target SN (abbreviated as target SN configuration), and sends them to the MN.

[0336] Here, the target SN's acceptance of the MN's configuration request can be divided into the following two cases:

[0337] I) The target SN accepts the conditional configuration and / or the restriction constraint information. Further, the target SN accepts the configuration request of the MN.

[0338] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, after modifying the conditional configuration and / or the restriction constraint information, the target SN accepts the configuration request from the MN and sends the revised conditional configuration and / or the revised restriction constraint information to the MN.

[0339] 2.2. If the target SN does not accept the configuration request from the MN, the target SN rejects the configuration request from the MN and ends the process.

[0340] Here, the situation where the target SN does not accept the configuration request from the MN can be divided into the following two cases:

[0341] I) The target SN does not accept the configuration request from the MN.

[0342] II) The target SN does not accept the conditional configuration and / or the restriction constraint information. Further, the target SN does not accept the configuration request from the MN.

[0343] 3.1. If the target SN accepts the configuration request from the MN and does not modify the conditional configuration and / or the restriction constraint information, or, the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information and the MN accepts the modified conditional configuration and / or the restriction constraint information, then the MN sends the following information to the terminal device:

[0344] a) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration; or,

[0345] b) The conditional configuration (or the revised conditional configuration), the target SN configuration and / or the target PSCell configuration, the radio resource configuration on the MN side.

[0346] 3.2. If the target SN accepts the configuration request from the MN and modifies the conditional configuration and / or the restriction constraint information, but the MN does not accept the modified conditional configuration and / or the restriction constraint information, then the MN can reject the modification and end the process.

[0347] It should be noted that the restriction constraint information involved in the embodiments of the present application: refers to the constraint information configured by the MN to the SN for indicating the SN to configure the radio resources on the SN side for the terminal device, so that the radio resource configurations of the MN and the SN do not exceed the capabilities of the terminal device.

[0348] It should be noted that the SN addition conditional configuration involved in the embodiments of the present application: refers to the condition for the terminal device to autonomously add the SN associated with the conditional configuration according to the measurement result.

[0349] It should be noted that the SN configuration information involved in the embodiments of the present application: includes the PSCell configuration information and / or the configuration information of all SCell on the SN side.

[0350] Figure 8 Schematic diagram of the structural composition of the information configuration device provided by the embodiment of the present application Figure 1 , applied to the MN side, such as Figure 8 shown, the information configuration device includes:

[0351] A sending unit 801, configured to send a first request message to the SN, where the first request message is used to request configuration of conditional PSCell change;

[0352] A receiving unit 802, configured to receive a first response message sent by the SN, where the first response message is used to indicate that the SN accepts the first request message;

[0353] The sending unit 801 is further configured to send at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0354] In an optional implementation manner, the first request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the MN.

[0355] In an optional implementation manner, when the SN accepts the first PSCell change condition configuration,

[0356] the PSCell change condition configuration sent by the sending unit 801 to the terminal device is the first PSCell change condition configuration.

[0357] In an optional implementation manner, when the SN does not accept the first PSCell change condition configuration,

[0358] the first response message carries a second PSCell change condition configuration, the second PSCell change condition configuration is the PSCell change condition configuration revised by the SN, and the PSCell change condition configuration sent by the sending unit 801 to the terminal device is the second PSCell change condition configuration.

[0359] In an optional implementation manner, the first request message carries first indication information, and the first indication information is used to indicate the PSCell change type.

[0360] In an optional implementation manner, the PSCell change type is intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN.

[0361] In an optional embodiment, when the PSCell change type indicated by the first indication information is an inter-SN PSCell change or an intra-SN PSCell change that affects the MN,

[0362] the first request message further carries first restriction information, and the first restriction information is used to restrict the SN from configuring the radio resource configuration on the SN side for the terminal device.

[0363] In an optional embodiment, when the SN does not accept the first restriction information,

[0364] the first response message carries second restriction information, and the second restriction information is the restriction information revised by the SN.

[0365] In an optional embodiment, the first request message carries the measurement result of the terminal device, and the measurement result is used for the SN to configure the target PSCell configuration.

[0366] In an optional embodiment, the first response message carries the target PSCell configuration configured by the SN;

[0367] The sending unit 801 is configured to send a PSCell change condition configuration and a target PSCell configuration to the terminal device; or, send a PSCell change condition configuration, a target PSCell configuration, and the radio resource configuration on the MN side to the terminal device.

[0368] In an optional embodiment, the sending unit 801 is configured to send a PSCell change condition configuration to the terminal device, where the target PSCell configuration is sent by the SN to the terminal device; or, send a PSCell change condition configuration and the radio resource configuration on the MN side to the terminal device, where the target PSCell configuration is sent by the SN to the terminal device.

[0369] In an optional embodiment, the configuration on the MN side and the configuration on the SN side are associated according to a configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0370] Those skilled in the art should understand that the relevant descriptions of the above information configuration device in the embodiments of the present application can be understood with reference to the relevant descriptions of the information configuration method in the embodiments of the present application.

[0371] Figure 9 This is the second schematic diagram of the structural composition of the information configuration device provided in the embodiments of the present application, which is applied to the MN side. As Figure 9 shown, the information configuration device includes:

[0372] A receiving unit 901, configured to receive a first request message sent by an SN, where the first request message is used to request configuration for conditional PSCell change;

[0373] A sending unit 902, configured to send a first response message to the SN, where the first response is used to indicate that the MN accepts the first request message; and send at least one of the following to a terminal device: PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0374] In an optional implementation manner, the first request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is a PSCell change condition configuration recommended by the SN.

[0375] In an optional implementation manner, when the MN accepts the first PSCell change condition configuration,

[0376] the PSCell change condition configuration sent by the sending unit 902 to the terminal device is the first PSCell change condition configuration.

[0377] In an optional implementation manner, when the MN does not accept the first PSCell change condition configuration,

[0378] the first response message carries a second PSCell change condition configuration, where the second PSCell change condition configuration is a PSCell change condition configuration revised by the MN, and the PSCell change condition configuration sent by the sending unit 902 to the terminal device is the second PSCell change condition configuration.

[0379] In an optional implementation manner, the first request message carries first indication information, and the first indication information is used to indicate a PSCell change type.

[0380] In an optional implementation manner, the PSCell change type is intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN.

[0381] In an optional implementation manner, when the PSCell change type indicated by the first indication information is inter-SN PSCell change or intra-SN PSCell change that affects the MN,

[0382] The first request message further carries first restriction constraint information, which is used to restrict the SN from configuring radio resource configuration on the SN side for the terminal device.

[0383] In an alternative embodiment, when the MN does not accept the first restriction constraint information,

[0384] the first response message carries second restriction constraint information, which is the revised restriction constraint information of the MN.

[0385] In an alternative embodiment, the first request message carries the target PSCell configuration configured by the SN;

[0386] The sending unit 902 is configured to send the PSCell change condition configuration and the target PSCell configuration to the terminal device; or, send the PSCell change condition configuration, the target PSCell configuration, and the radio resource configuration on the MN side to the terminal device.

[0387] In an alternative embodiment, the sending unit 902 is configured to send the PSCell change condition configuration to the terminal device, where the target PSCell configuration is sent by the SN to the terminal device; or, send the PSCell change condition configuration and the radio resource configuration on the MN side to the terminal device, where the target PSCell configuration is sent by the SN to the terminal device; or, send the radio resource configuration on the MN side to the terminal device, where the PSCell change condition configuration and the target PSCell configuration are sent by the SN to the terminal device.

[0388] In an alternative embodiment, the configuration on the MN side and the configuration on the SN side are associated according to a configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0389] Those skilled in the art should understand that the relevant descriptions of the above information configuration device in the embodiments of the present application can be understood with reference to the relevant descriptions of the information configuration method in the embodiments of the present application.

[0390] Figure 10 FIG. 3 is a schematic structural diagram of an information configuration device provided in an embodiment of the present application, which is applied to the MN side, as Figure 10 shown, the information configuration device includes:

[0391] A sending unit 1001 is configured to send a second request message to a target SN, where the second request message is used to request configuration for condition-based SN addition;

[0392] A receiving unit 1002, configured to receive a second response message sent by the target SN, where the second response message is used to indicate that the target SN accepts the second request message.

[0393] The sending unit 1001 is further configured to send at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, and radio resource configuration on the MN side.

[0394] In an optional implementation manner, the second request message carries a first SN addition condition configuration, and the first SN addition condition configuration is an SN addition condition configuration recommended by the MN.

[0395] In an optional implementation manner, when the target SN accepts the first SN addition condition configuration,

[0396] The target SN addition condition configuration sent by the sending unit 1001 to the terminal device is the first SN addition condition configuration.

[0397] In an optional implementation manner, when the target SN does not accept the first SN addition condition configuration,

[0398] The second response message carries a second SN addition condition configuration, where the second SN addition condition configuration is an SN addition condition configuration revised by the target SN, and the SN addition condition configuration sent by the sending unit 1001 to the terminal device is the second SN addition condition configuration.

[0399] In an optional implementation manner, the second request message carries first restriction constraint information, where the first restriction constraint information is used to restrict the target SN from configuring radio resources on the target SN side for the terminal device.

[0400] In an optional implementation manner, when the target SN does not accept the first restriction constraint information,

[0401] The second response message carries second restriction constraint information, where the second restriction constraint information is restriction constraint information revised by the target SN.

[0402] In an optional implementation manner, the second request message carries a measurement result of the terminal device, where the measurement result is used for the target SN to configure at least one of the following: target SN configuration, target PSCell configuration.

[0403] In an optional implementation manner, the second response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration;

[0404] The sending unit 1001 is configured to send SN addition condition configuration to the terminal device, and at least one of the following: target SN configuration, target PSCell configuration; or, send SN addition condition configuration, radio resource configuration on the MN side, and at least one of the following: target SN configuration, target PSCell configuration to the terminal device.

[0405] In an alternative embodiment, the receiving unit 1002 is further configured to receive a third request message sent by the original SN, where the third request message is used to request configuration for conditional PSCell change.

[0406] The sending unit 1001 is further configured to send a third response message to the original SN, where the third response message is used to indicate that the MN accepts the third request message.

[0407] In an alternative embodiment, the third request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the original SN.

[0408] In an alternative embodiment, the apparatus further includes:

[0409] A revision unit 1003, configured to revise the first PSCell change condition configuration to a second PSCell change condition configuration when not accepting the first PSCell change condition configuration.

[0410] In an alternative embodiment, the third request message further carries identification information of the target PSCell corresponding to the first PSCell change condition configuration, and the target PSCell is one of the cells of the target SN.

[0411] In an alternative embodiment, the identification information of the target PSCell includes at least one of the following: PCI, frequency point, N-CGI, base station identifier.

[0412] In an alternative embodiment, the third request message carries first indication information, where the first indication information is used to indicate the PSCell change type.

[0413] In an alternative embodiment, the PSCell change type is intra-SN PSCell change, or inter-SN PSCell change, or intra-SN PSCell change that does not affect the MN, or intra-SN PSCell change that affects the MN.

[0414] In an alternative embodiment, when the terminal device triggers a random access procedure to the target SN based on the SN addition condition configuration,

[0415] the target SN sends an original SN release request message to the MN to trigger the MN to request the original SN to release resources; or,

[0416] the target SN sends an original SN release request message to the original SN to trigger the original SN to release resources.

[0417] Those skilled in the art should understand that the relevant descriptions of the above information configuration device in the embodiments of the present application can be understood with reference to the relevant descriptions of the information configuration method in the embodiments of the present application.

[0418] Figure 11 Schematic diagram of the structural composition of the information configuration device provided in the embodiments of the present application Figure 4 for the original SN side, as Figure 11 shown, the information configuration device includes:

[0419] A sending unit 1101, configured to send a fourth request message to the target SN, where the fourth request message is used to request configuration of conditional PSCell change;

[0420] A receiving unit 1102, configured to receive a fourth response message sent by the target SN, where the fourth response message indicates that the target SN accepts the fourth request message, and the fourth response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration;

[0421] The sending unit 1101 is further configured to send PSCell change condition configuration and at least one of the following to the MN: target SN configuration, target PSCell configuration.

[0422] In an alternative embodiment, the PSCell change condition configuration and at least one of the following: target SN configuration, target PSCell configuration, are sent by the MN to the terminal device; or,

[0423] the PSCell change condition configuration and at least one of the following: target SN configuration, target PSCell configuration, are sent by the original SN to the terminal device; or,

[0424] the PSCell change condition configuration is sent by the MN to the terminal device, and the target SN configuration and / or target PSCell configuration are sent by the original SN to the terminal device; or,

[0425] The PSCell change condition configuration is sent by the original SN to the terminal device, and the target SN configuration and / or the target PSCell configuration are sent by the MN to the terminal device.

[0426] In an alternative embodiment, the radio resource configuration on the MN side is sent by the MN to the terminal device.

[0427] In an alternative embodiment, the configuration on the MN side and the configuration on the original SN side are associated according to a configuration index, and multiple configurations with an association relationship form a PSCell change configuration.

[0428] In an alternative embodiment, the fourth request message carries a first PSCell change condition configuration and / or a first restriction and constraint information. The first PSCell change condition configuration is the PSCell change condition configuration recommended by the original SN, and the first restriction and constraint information is used to restrict the SN from configuring the radio resource configuration on the SN side for the terminal device.

[0429] In an alternative embodiment, when the target SN does not accept the first PSCell change condition configuration and / or the first restriction and constraint information,

[0430] The fourth response message further carries a second PSCell change condition configuration and / or a second restriction and constraint information. The second PSCell change condition configuration is the PSCell change condition configuration revised by the target SN, and the second restriction and constraint information is the restriction and constraint information revised by the target SN.

[0431] In an alternative embodiment, when the terminal device triggers a random access procedure to the target SN based on the PSCell change condition configuration,

[0432] The target SN sends an original SN release request message to the MN to trigger the MN to request the original SN to release resources; or,

[0433] The target SN sends an original SN release request message to the original SN to trigger the original SN to release resources.

[0434] Those skilled in the art should understand that the relevant descriptions of the above information configuration device in the embodiments of the present application can be understood with reference to the relevant descriptions of the information configuration method in the embodiments of the present application.

[0435] Figure 12 It is a schematic structural diagram of a communication device 1200 provided by an embodiment of the present application. This communication device can be a terminal device or a network device (such as an MN, SN), Figure 12The communication device 1200 shown includes a processor 1210, and the processor 1210 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

[0436] Optionally, as Figure 12 shown, the communication device 1200 may further include a memory 1220. Among them, the processor 1210 can call and run a computer program from the memory 1220 to implement the method in the embodiments of the present application.

[0437] Among them, the memory 1220 can be a separate device independent of the processor 1210, or can be integrated in the processor 1210.

[0438] Optionally, as Figure 12 shown, the communication device 1200 may further include a transceiver 1230, and the processor 1210 can control the transceiver 1230 to communicate with other devices. Specifically, it can send information or data to other devices, or receive information or data sent by other devices.

[0439] Among them, the transceiver 1230 can include a transmitter and a receiver. The transceiver 1230 may further include an antenna, and the number of antennas can be one or more.

[0440] Optionally, the communication device 1200 can specifically be the network device in the embodiments of the present application, and the communication device 1200 can implement the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0441] Optionally, the communication device 1200 can specifically be the mobile terminal / terminal device in the embodiments of the present application, and the communication device 1200 can implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0442] Figure 13 is a schematic structural diagram of the chip in the embodiments of the present application. Figure 13 The chip 1300 shown includes a processor 1310, and the processor 1310 can call and run a computer program from the memory to implement the method in the embodiments of the present application.

[0443] Optionally, as Figure 13 shown, the chip 1300 may further include a memory 1320. Among them, the processor 1310 can call and run a computer program from the memory 1320 to implement the method in the embodiments of the present application.

[0444] Among them, the memory 1320 can be a separate device independent of the processor 1310, or can be integrated in the processor 1310.

[0445] Optionally, the chip 1300 may further include an input interface 1330. Among them, the processor 1310 may control the input interface 1330 to communicate with other devices or chips. Specifically, it may obtain information or data sent by other devices or chips.

[0446] Optionally, the chip 1300 may further include an output interface 1340. Among them, the processor 1310 may control the output interface 1340 to communicate with other devices or chips. Specifically, it may output information or data to other devices or chips.

[0447] Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding processes implemented by the network device in the various methods of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0448] Optionally, the chip may be applied to the mobile terminal / terminal device in the embodiment of the present application, and the chip may implement the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiment of the present application. For the sake of brevity, it will not be elaborated here.

[0449] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip.

[0450] Figure 14 is a schematic block diagram of a communication system 1400 provided by an embodiment of the present application. As Figure 14 shown, the communication system 1400 includes a terminal device 1410 and a network device 1420.

[0451] Among them, the terminal device 1410 may be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1420 may be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, it will not be elaborated here.

[0452] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiments can be completed by the integrated logic circuit in the hardware of the processor or instructions in the form of software. The above-mentioned processor may 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, discrete hardware components. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed by the hardware decoding processor, or executed by a combination of the hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0453] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a 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 dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0454] It should be understood that the above memory is by way of example but not limitation. For example, the memory in the embodiments of the present application can also be a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchlink dynamic random access memory (SLDRAM), and a direct rambus random access memory (DR RAM), etc. That is to say, the memory in the embodiments of the present application is intended to include but not be limited to these and any other suitable types of memory.

[0455] The embodiments of the present application also provide a computer-readable storage medium for storing a computer program.

[0456] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0457] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0458] The embodiments of the present application also provide a computer program product including computer program instructions.

[0459] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0460] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0461] The embodiments of the present application also provide a computer program.

[0462] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0463] Optionally, the computer program can be applied to the mobile terminal / terminal device in the embodiments of the present application. When the computer program runs on the computer, it causes the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, it will not be elaborated here.

[0464] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0465] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be repeated here.

[0466] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0467] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or they can be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0468] In addition, the functional units in each embodiment of this application can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0469] When the above-mentioned functions are implemented in the form of 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 part of this 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 for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0470] As described above, the above are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. An information configuration method, the method comprises: The master node MN sends a first request message to the secondary node SN, where the first request message is used to request the configuration of conditional primary-secondary cell (PSCell) change; The MN receives a first response message sent by the SN, where the first response message is used to indicate that the SN accepts the first request message; The MN sends PSCell change condition configuration and target PSCell configuration to the terminal device; or, The MN sends PSCell change condition configuration, target PSCell configuration, and radio resource configuration on the MN side to the terminal device; Wherein, the first request message carries the measurement result of the terminal device, and the measurement result is used for the SN to configure the target PSCell configuration.

2. The method according to claim 1, wherein, The first response message carries the target PSCell configuration configured by the SN.

3. An information configuration method, the method comprises: The MN receives a first request message sent by the SN, where the first request message is used to request the configuration of conditional PSCell change; The MN sends a first response message to the SN, where the first response is used to indicate that the MN accepts the first request message; The MN sends at least one of the following to the terminal device: PSCell change condition configuration, target PSCell configuration, radio resource configuration on the MN side; Wherein, the first request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the SN.

4. The method according to claim 3, wherein, When the MN accepts the first PSCell change condition configuration, The PSCell change condition configuration sent by the MN to the terminal device is the first PSCell change condition configuration.

5. An information configuration method, the method comprises: The MN sends a second request message to the target SN, where the second request message is used to request the configuration of conditional SN addition; The MN receives a second response message sent by the target SN, where the second response message is used to indicate that the target SN accepts the second request message; The MN sends at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, radio resource configuration on the MN side; Wherein, the second request message carries a first SN addition condition configuration, and the first SN addition condition configuration is the SN addition condition configuration recommended by the MN.

6. The method according to claim 5, wherein, The second request message carries the measurement result of the terminal device, and the measurement result is used for the target SN to configure at least one of the following: target SN configuration, target PSCell configuration.

7. The method according to any one of claims 5 to 6, wherein, The second response message carries at least one of the following configured by the target SN: target SN configuration, target PSCell configuration; The MN sends at least one of the following to the terminal device: SN addition condition configuration, target SN configuration, target PSCell configuration, radio resource configuration on the MN side, including: The MN sends the SN addition condition configuration to the terminal device, and at least one of the following: target SN configuration, target PSCell configuration; or, The MN sends the SN addition condition configuration, the radio resource configuration on the MN side, and at least one of the following: target SN configuration, target PSCell configuration to the terminal device.

8. The method according to any one of claims 5 to 7, wherein, Before the MN sends a second request message to the target SN, the method further includes: The MN receives a third request message sent by the original SN, and the third request message is used to request configuration of conditional PSCell change; The MN sends a third response message to the original SN, and the third response message is used to indicate that the MN accepts the third request message.

9. The method according to claim 8, wherein, The third request message carries a first PSCell change condition configuration, and the first PSCell change condition configuration is the PSCell change condition configuration recommended by the original SN.

10. The method according to claim 9, wherein, When the MN does not accept the first PSCell change condition configuration, The MN revises the first PSCell change condition configuration to a second PSCell change condition configuration.

11. The method according to any one of claims 8 to 10, wherein, The third request message further carries identification information of the target PSCell corresponding to the first PSCell change condition configuration, and the target PSCell is one of the cells of the target SN.

12. The method according to claim 11, wherein, The identification information of the target PSCell includes at least one of the following: PCI, frequency point, N-CGI, base station identification.

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