Cell management method, device, equipment and storage medium

Abstract

The present application proposes a cell management method, apparatus, device and storage medium, the method being applied to a first communication node, comprising: sending a first dual connection control message to a second communication node, wherein the first dual connection control message is used to instruct the second communication node to manage relevant information of a primary and secondary service cell PSCell in a conditional candidate target cell; and receiving relevant information of a primary and secondary service cell PSCell in a conditional candidate target cell sent by the second communication node.

Description

Technical Field

[0001] The present application relates to a wireless communication network, and in particular to a cell management method, apparatus, device and storage medium. Background Art

[0002] In the multi-RAT dual connectivity (MR-DC) dual connectivity operation, the master node (MN) and the secondary node (SN) need to coordinate resources and pre-configure the application PScell ​​to solve potential configuration conflicts. Currently, the application PScell ​​pre-configured locally on the SN side is still transparent to the MN, resulting in the inability to perform relevant management and coordination between the MN and the SN. Summary of the invention

[0003] The present application provides a method, apparatus, device, storage medium and system for cell management.

[0004] An embodiment of the present application provides a cell management method, which is applied to a first communication node and includes:

[0005] Sending a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of a primary and secondary serving cell PSCell in a conditional candidate target cell;

[0006] Receive relevant information of the primary and secondary service cells PSCell in the conditional candidate target cells sent by the second communication node.

[0007] An embodiment of the present application provides a cell management method, which is applied to a second communication node and includes:

[0008] A second dual connectivity control message is sent to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node.

[0009] An embodiment of the present application provides a cell management device, which is configured at a first communication node and includes:

[0010] A first sending module is configured to send a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of the PSCell in the conditional candidate target cell;

[0011] The first receiving module is configured to receive relevant information of the PSCell in the conditional candidate target cell sent by the second communication node.

[0012] An embodiment of the present application provides a cell management device, which is configured at a second communication node and includes:

[0013] The second sending module is configured to send a second dual connectivity control message to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of the PSCell in the conditional candidate target cell to the first communication node.

[0014] The present application provides a device, including:

[0015] one or more processors;

[0016] A memory for storing one or more programs;

[0017] When the one or more programs are executed by the one or more processors, the one or more processors implement any one of the methods in the embodiments of the present application.

[0018] An embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.

[0019] With regard to the above embodiments and other aspects of the present application and their implementation, further description is provided in the accompanying drawings, detailed description and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an architecture diagram of a converged NG-RAN base station when the CU / DU air interface protocol stack is not separated;

[0021] Figure 2 This is an architecture diagram of a separated NG-RAN base station gNB with separated air interface protocol stacks of CU / DU;

[0022] Figure 3 is a schematic diagram of conditional handover pre-configuration resource management under a single base station;

[0023] Figure 4 is a schematic diagram of pre-configured resource management for conditional handover across base stations;

[0024] Figure 5 is a schematic diagram of NG-RAN multi-connectivity operation and architecture;

[0025] Figure 6 is a schematic diagram of a moving scenario of a secondary base station changing under a multi-connection operation;

[0026] Figure 7 A flowchart of a cell management method provided in this application;

[0027] Figure 8 A flowchart of a cell management method provided in this application;

[0028] Fig. 9 It is a schematic diagram of a small collaborative management scenario of primary and secondary services in a conditional candidate target cell;

[0029] Fig.10 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0030] Fig.11 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0031] Fig.12 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0032] Fig.13 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0033] Fig.14 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0034] Fig.15 It is a schematic diagram of the flow of interaction between the primary and secondary base stations;

[0035] Fig.16 A schematic diagram of the structure of a cell management device provided in this application;

[0036] Fig.17 A schematic diagram of the structure of a cell management device provided in this application;

[0037] Fig.18 It is a structural schematic diagram of a device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the present application more clear, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily without conflict.

[0039] The steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions. Also, although a logical sequence is shown in the flowchart, in some cases, the steps shown or described can be performed in a sequence different from that shown here.

[0040] First, the application environment of this application is briefly introduced.

[0041] As the continued development of the fourth-generation land-based 4G LTE cellular mobile communication system, the fifth-generation land-based 5G cellular mobile communication system includes two major subsystems: the next-generation core network 5GC (5th Generation Core, 5GC) and the next-generation radio access network (Next Generation Radio Access Network, NG-RAN). Among them, 5GC includes network entities or nodes such as Access Mobility Function Node (Access Mobility Function, AMF), Session Management Function Node (Session Management Function, SMF) and User Plane Function Node (User Plane Function, UPF), and NG-RAN includes at least two different types of base stations of radio access technology (Radio Access Technology, RAT), namely: ng-eNB (the air interface still supports E-UTRA RAT) based on the smooth evolution of 4GeNB, and gNB (the air interface supports NR (New Radio) RAT) with a new physical layer air interface design, as well as the logical interface connection between related network element node entities.

[0042] The NG-RAN base station (gNB or ng-eNB) is bidirectionally connected to the 5GC through a standardized NG interface, where the bidirectional connection includes an NG-C control plane connection (for signaling transmission) and an NG-U user plane connection (for user data transmission). The NG-RAN base stations (gNB or ng-eNB) are bidirectionally connected to each other through the Xn interface (including an Xn-C control plane connection and an Xn-U user plane connection).

[0043] Figure 1 This is a network architecture diagram of the NG-RAN aggregated base station when the CU / DU air interface protocol stack is not separated; Figure 2This is a network architecture diagram for the case of non-aggregate NG-RAN separated base station gNB CU / DU air interface protocol stack separation. Taking the gNB-CU / DU separation currently supported by 3GPP as an example, a single gNB is separated into a single gNB-CU and multiple gNB-DU network node entities, which are bidirectionally connected through a standardized F1 interface, including F1-C control plane connection and F1-U user plane connection. The logical interfaces presented to the outside by the gNB after CU / DU separation and the non-separated gNB / ng-eNB are still NG and Xn interfaces. The control plane connection of the above-mentioned network-side logical interfaces (NG, Xn, F1) is used to transmit control signaling messages between network entities or nodes, while the user plane connection is used to transmit user service data (packets). NGAP, XnAP, and F1AP are the NG-C, Xn-C, and F1-C control plane RNL (Radio Network Layer) logical network application layer protocols, respectively, which standardize the signaling process messages on each logical interface.

[0044] Before introducing the multi-connection (dual) connection operation of the network and the terminal UE, let's first introduce the single connection operation, that is, the terminal UE is served by only one service base station (such as eNB, ng-eNB or gNB) at a certain time and place. In the single connection operation of the terminal UE, the current NG-RAN service base station maintains the continuity of the terminal user's communication service (session) by switching the Handover process, that is, the communication context of the terminal UE is migrated from the source service base station cell Source Node / Cell to the target service base station cell TargetNode / Cell as smoothly as possible. The handover process usually includes three stages: "handover preparation", "handover execution" and "handover completion". In the "handover preparation" stage, the source service base station cell (hereinafter referred to as: source base station or source cell) and the target service base station cell (hereinafter referred to as: target base station or target cell) negotiate based on the signaling process of the network logical interface to determine the reserved configuration of the communication resources on the target side and the configuration content of the air interface handover command Handover Command; in the "handover execution" stage, the source service base station cell includes the air interface handover command in the radio resource control (Radio Resource Control, RRC) air interface signaling and sends it to the terminal UE, so the UE attempts to perform a handover operation to the designated target base station cell; in the "handover completion" stage, the source service base station cell and the target service base station cell negotiate the signaling process again to notify the handover result and release the communication resources and UE communication context that are no longer needed on the source side.

[0045] In the traditional unconditional handover process, the two stages of "handover preparation" and "handover execution" are continuous in time, that is, the time interval is not large. The source cell starts the "handover preparation" process based on the wireless measurement result report (Measurement Report) of the terminal UE and the local radio resource management (Radio Resource Management, RRM) strategy. When the designated target base station cell (usually there is only one target main base station and one target main service cell) completes the target side resource reservation configuration related to the "handover preparation" process, the source cell immediately starts the "handover execution" on the air interface, and the terminal UE immediately executes the handover command and attempts to switch to the target base station cell. Therefore, the "actual handover moment" of the terminal UE and the receipt of the air interface handover command are closely continuous in time. The air interface handover command sent by the source cell is usually sent to the UE when the terminal UE and the network side simultaneously meet the "actual handover conditions". Here, the "actual handover conditions" refer to the wireless signal quality of the designated target base station cell being good enough and the communication resources being reserved being sufficient and reasonably configured. After the UE successfully switches to the target base station cell, the continuity of at least part of the services can be maintained.

[0046] The above-mentioned traditional non-conditional handover mechanism was originally designed for low-frequency band non-dense cell deployment. With the evolution of the network and the expansion of capacity, heterogeneous networks (HetNet) are also deployed on top of homogeneous networks. For example, many small cells are deployed within the coverage of cellular macro cells. In the 5G system, in addition to using low-frequency band resources, high-frequency band resources up to 100GHz will also be used. These high-frequency cells can usually only be deployed in the form of dense small cells. Small Cell Cluster. Under the above background and new requirements, the conditional handover mechanism (Conditional Handover, CHO) was introduced by the 3GPP standard. In the conditional handover process, the two stages of "CHO ​​handover preparation" and "CHO ​​handover execution" are separated in time, that is, a larger time interval is allowed between them. Based on the wireless measurement result report (Measurement Report) of the terminal UE and the local RRM strategy, the source cell starts the "CHO ​​handover preparation" process, requests multiple potential / candidate target base station cells (Candidate Target Node / Cells) to complete the target side resource reservation configuration related to the "CHO ​​handover preparation" process, and sends the CHO pre-configuration information to the UE in advance through the air interface RRC Reconfiguration reconfiguration signaling. Subsequently, the source cell does not immediately start the "CHO ​​handover execution", and the terminal UE does not immediately perform the CHO handover operation to a suitable target base station cell, but waits until a UE local evaluates that the "actual handover condition" is met later, and the terminal UE performs the CHO handover operation to a suitable target base station cell. Therefore, the "actual handover moment" of the terminal UE and the receipt of the air interface CHO handover command are not continuous in time. Through the CHO mechanism, the source cell can make multiple target side (cell) resource reservation configurations in advance when the source side radio link condition is still good (for example: non-cell edge), and the terminal UE selects the most suitable target cell at that time to perform handover according to the local dynamic situation, thereby reducing the probability of handover failure and improving the user's mobile service experience.

[0047] Figure 3 is a schematic diagram of conditional handover pre-configuration resource management under a single base station, such as Figure 3As shown, a source base station (Source Node) has jurisdiction over local cells Cell1, Cell2, Cell3, Cell4, Cell5, Cell6, and Cell7. Cell1 is the current primary service cell of a terminal UE1. As UE1 moves without direction, neighboring cells Cell2, Cell3, Cell4, Cell5, Cell6, and Cell7 may become potential / candidate target cells of UE1. Therefore, in order to enhance the robustness of mobility and improve user experience, the source base station can pre-configure Cell2 / 3 / 4 / 5 / 6 / 7 as conditional target cells (Candidate Target Cells) of UE through the CHO mechanism. When UE1 evaluates that the "actual switching condition" is met during the subsequent movement, UE1 performs a CHO switching operation to the target cell that meets the CHO condition. When CHO involves operations across different base stations, the source base station needs to conduct CHO pre-configuration negotiation and "CHO ​​switching preparation" with neighboring base stations based on the interface signaling process.

[0048] Figure 4 is a schematic diagram of the pre-configured resource management for conditional switching across base stations, such as Figure 4As shown, a source base station Source Node has jurisdiction over Cell1, Cell2, and Cell7 local cells, while neighboring base stations Neighbor node1 and Neighbornode2 have jurisdiction over Cell3, Cell4 local cells and Cell5, Cell6 local cells respectively. Cell1 is the current primary service cell of a terminal UE2. With the directional movement of UE2, Cell2, Cell3, Cell4, Cell5, Cell6, and Cell7 may also become potential / candidate target cells of UE2. Therefore, in order to enhance the mobility robustness, the source base station can negotiate with neighboring base stations through the CHO mechanism to preconfigure Cell3, Cell4, Cell5, and Cell6 as Candidate Target Cells of UE. For the above-mentioned Candidate Target Cells, in addition to the "CHO ​​add (initial preconfiguration)" operation related to each potential / candidate target cell, there are also "CHO ​​modification (re-preconfiguration)" and "CHO ​​release (or cancellation, deletion of preconfiguration)" operations. The "CHO ​​add" and "CHO ​​modify" operations are designed to enable the CHO mechanism to work, because the target base station cell must reserve and configure relevant communication resources for the UE; and the "CHO ​​release" (or CHO cancel / delete) operation greatly affects the working efficiency of the CHO mechanism and the occupation of system resources, because when a pre-configured Candidate Target Cell becomes no longer suitable (for example: the UE has gradually moved away from it and is unlikely to access it later, or that cell has local load congestion), the base station should release / cancel / delete it in a timely manner, and the terminal UE will no longer locally evaluate whether that cell meets the "actual switching conditions" and will no longer prepare to perform CHO switching to it.

[0049] Under network and terminal multi-(dual) connection operation, the terminal UE can be served by two or more serving base stations at the same time. Figure 5 This is a schematic diagram of NG-RAN multi-connection operation and architecture. Figure 5 As shown, the terminal UE can be connected to the only main base station (Master Node: MN main control anchor base station, which determines the RRC state of the terminal and must have an NG-C control plane connection with 5GC) and two auxiliary base stations (SecondaryNode: SN data offload base station, controlled by the main base station, and can be configured with an NG-U user plane connection with 5GC) at the same time, and each establishes and maintains the air interface Uu wireless link Radio Link: RL, and performs uplink and downlink transmission of user service data at the same time.

[0050] In the 4G E-UTRA system, the primary and secondary base stations can be MeNB and SgNB respectively; in the 5G N-RAN system, the primary and secondary base stations can be gNB or ng-eNB, which independently allocate and schedule wireless resources for the served terminal UE. As the terminal UE moves, the change migration of the primary base station may occur (that is, the UE moves from the old coverage of the source primary base station to the new coverage of the target primary base station). At this time, the traditional HO or CHO mobile process under the above-mentioned single connection operation is used to perform the mobility management of the primary service cell Pcell / MCG on the primary base station side. In addition, there is a unique mobile scenario for multi-connection operation. As the terminal UE moves, the primary base station MN or the current service Pcell / MCG connected to the terminal UE remains unchanged, while the primary and secondary service cells (Primary Secondary Cell, PScell) / SCG in the secondary base station SN or the current service SN change (that is, the UE moves from the old coverage of the source secondary base station SourceSN to the new coverage of the target new secondary base station target SN under the coverage of the same primary base station MN, or moves from the old PScell / SCG coverage in the current service SN to the coverage of the target new PScell / SCG). MCG is the primary service cell group that is always bound to Pcell, while SCG is the secondary service cell group that is always bound to PScell. Figure 6 This is a schematic diagram of the secondary base station moving scenario under multi-connection operation, as shown in the attached figure. Figure 6 As shown, UE3 was originally under the joint coverage of the main base station and the source secondary base station for dual connection operation. When UE3 moves to the target new secondary base station, it will enter the joint coverage of the anchor main base station and the target new secondary base station. At this time, it is necessary to use the traditional secondary base station change SNchange or conditional secondary base station change Conditional SN change mobile process under multi (dual) connection operation to perform mobility management of the service cell on the secondary base station side. If the serving secondary base station remains unchanged and only the PScell ​​changes, it is necessary to use the PScell ​​change or ConditionalPScell ​​change mobile process management.

[0051] When the UE is in multi-connection (dual) operation, the currently serving master base station MN and source secondary base station source SN can perform pre-configuration of the candidate target secondary base station / cell Candidate PScell / SCG on the secondary base station side, and related addition, modification and release management. The principle is similar to the CHO mechanism under the above single connection. At this time, the UE does not immediately access the candidate target secondary base station / cell Candidate PScell / SCG on the secondary base station side, but waits until the UE local evaluation "actual conditions" are met before trying to access. After successful access, the candidate target secondary base station / cell will take effect and provide radio link services. For the candidate target secondary base station / cell on the secondary base station side, there are "Candidate PScell / SCG addition (initial pre-configuration)" operations in different scenarios of "Inter-SN across different secondary base stations" or "Intra-SN within the same secondary base station", as well as "Candidate PScell / SCG modification (re-pre-configuration)" and "Candidate PScell / SCG release (or cancel, delete pre-configuration)" basic operations. This application will realize the collaborative management between the primary and secondary base stations towards one or more Candidate PScell / SCGs, which can effectively reduce the unnecessary long-term reservation or occupation of related communication resources, or the conditional pre-configuration and use conflicts between the primary and secondary base stations, and realize the timely recovery and reuse of communication resources and coordination.

[0052] First of all, it should be noted that the UE and the primary and secondary base stations support the Conditional PScell / SCG change (hereinafter referred to as CPC) pre-configuration, mobile scenarios and related process mechanisms under the relevant multi-(dual) connection operations in this application. The UE movement can cross "different secondary base stations Inter-SN" or "Intra-SN in the same secondary base station" with different PScell / SCG coverage. The UE is about to or is already in a multi-(dual) connection operation, that is, there is at least one serving primary base station MN and one source serving secondary base station sourceSN to provide wireless link services for the UE. For simplicity, the following will focus on the dual connection DC operation description. The mechanism principle of the multi-connection operation is similar, and the logical method is expanded accordingly.

[0053] In an exemplary implementation, this embodiment provides a method for cell management. Figure 7 A flowchart of a cell management method provided by the present application. The method can be applied to the situation of collaboratively managing candidate target cells under multi-(dual) connection operation. The method is applied to a first communication node; the method can be executed by a cell management device provided by the present application, and the cell management device can be implemented by software and / or hardware.

[0054] like Figure 7As shown, the cell management method provided in the embodiment of the present application mainly includes steps S11 and S12.

[0055] S11. Send a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of the primary and secondary service cells PSCell in the conditional candidate target cell.

[0056] S12. Receive relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells sent by the second communication node.

[0057] In this embodiment, the first communication node and the second communication node may both be base stations. A base station may be a device that can communicate with a user terminal. A base station may be any device with a wireless transceiver function. Preferably, the first communication node is a primary base station, and the second communication node is a secondary base station.

[0058] In the embodiments of the present application, the user terminal is a device with wireless transceiver function that can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.). The user terminal can be a mobile phone, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. The embodiments of the present application do not limit the application scenarios. The user terminal may sometimes also be referred to as a terminal, an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent or a UE device, etc. The embodiments of the present application are not limited.

[0059] In an exemplary implementation, the first dual-connectivity control message includes one or more of the following: an inquiry message, a pre-configuration message, and a release message.

[0060] In this embodiment, the type of the first dual connectivity control message may be different according to different base station types. The specific message type of the first dual connectivity control message may refer to the message type in the subsequent specific application example scheme of this case, and will not be repeated here.

[0061] In an exemplary implementation, the first dual connectivity control message is carried by secondary base station addition request signaling, or the first dual connectivity control message is carried by secondary base station modification request signaling.

[0062] In an exemplary embodiment, sending a first dual-connectivity control message to the second communication node includes: sending an inquiry message to the second communication node, wherein the inquiry message is used to inquire about relevant information of a conditional candidate target cell primary and secondary service cell PSCell within the second communication node currently serving.

[0063] In an exemplary implementation, the relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells includes one or more of the following:

[0064] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0065] The cell working and service frequency of the conditional candidate target cell PSCell;

[0066] The bandwidth of the conditional candidate target cell PSCell;

[0067] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0068] The total number of conditional candidate PSCells allowed on each working and serving frequency point;

[0069] The total number of pre-configured conditional candidate PSCells allowed in the second communication node.

[0070] In an exemplary implementation, the relevant information about the change of the primary and secondary serving cells PSCell in the conditional candidate target cells includes: attribute type indication information of the candidate target cell PSCell.

[0071] In an exemplary embodiment, the attribute type indication information refers to an attribute type indication of whether the candidate target cell PSCell can be applied for release, cancellation or deletion by the first communication node.

[0072] Furthermore, the above-mentioned "Candidate PScell / SCG related information" includes: an attribute indication of whether these cells can be applied for release / cancellation / deletion by the MN.

[0073] In an exemplary embodiment, sending a first dual-connectivity control message to a second communication node includes: sending a first pre-configuration message to the second communication node, wherein the first pre-configuration message is used to limit the maximum number of pre-configured conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

[0074] In an exemplary embodiment, the maximum number is the maximum total number of the second communication node at all working and service frequencies; or, the maximum number is the local maximum number of the SN second communication node at a certain working and service frequency.

[0075] In an exemplary embodiment, when the maximum number is a preset value, the second communication node is prohibited from locally pre-configuring any conditional candidate target primary and secondary serving cells PSCell.

[0076] Furthermore, if the above “maximum number” is 0, it means that the secondary base station SN is not going to pre-configure any candidate target secondary cell Candidate PScell / SCG locally.

[0077] In an exemplary embodiment, sending a first dual-connection control message to the second communication node includes: sending a first release message to the second communication node, wherein the first release message is used to instruct the second communication node to release or delete or cancel one or more conditional candidate target primary and secondary service cells PSCell specified in the second communication node currently serving.

[0078] In an exemplary implementation, the conditional candidate target primary or secondary serving cell PSCell to be released, deleted or cancelled is indicated by one or more of the following information:

[0079] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0080] The cell working and service frequency of the conditional candidate target cell PSCell;

[0081] The bandwidth of the conditional candidate target cell PSCell;

[0082] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0083] Wait for the second communication node to release, delete or cancel the number of conditional candidate PSCells in the second communication node.

[0084] In an exemplary implementation, this embodiment provides a method for cell management. Figure 8A flowchart of a cell management method provided by the present application. The method can be applied to the situation of collaboratively managing candidate target cells under multi-(dual) connection operation. The method is applied to the second communication node; the method can be executed by the cell management device provided by the present application, and the cell management device can be implemented by software and / or hardware.

[0085] like Figure 8 As shown, the cell management method provided in the embodiment of the present application mainly includes step S21.

[0086] S21. Send a second dual connectivity control message to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node.

[0087] In this embodiment, sending the second dual connection control message to the first communication node may be that the second communication node sends the second dual connection control message to the first communication node after receiving the first dual connection control message sent by the first communication node; or the second communication node actively sends the second dual connection control message to the first communication node.

[0088] The second dual connection control message includes one or more of the following: a notification message, a pre-configuration message, and a release message.

[0089] In an exemplary implementation, the second dual connectivity control message is carried by secondary base station modification request signaling.

[0090] In an exemplary embodiment, sending a second dual-connectivity control message to the first communication node includes: actively sending a notification message to the first communication node, wherein the notification message is used to actively inform the first communication node of relevant information of a conditional candidate target cell PScell ​​within the second communication node currently served by the first communication node.

[0091] The relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells includes one or more of the following:

[0092] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0093] The cell working and service frequency of the conditional candidate target cell PSCell;

[0094] The bandwidth of the conditional candidate target cell PSCell;

[0095] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0096] The total number of conditional candidate PSCells allowed on each working and serving frequency point;

[0097] The total number of pre-configured conditional candidate PSCells allowed in the second communication node.

[0098] In an exemplary implementation, the relevant information about the change of the primary and secondary serving cells PSCell in the conditional candidate target cells includes: attribute type indication information of the candidate target cell PSCell.

[0099] Furthermore, the above-mentioned "Candidate PScell / SCG related information" includes: an attribute indication of whether these cells can be applied for release / cancellation / deletion by the MN.

[0100] In an exemplary embodiment, sending a second dual-connectivity control message to the first communication node includes: sending a second pre-configuration message to the first communication node, wherein the second pre-configuration message is used to apply to the first communication node for the pre-configured maximum allowed number of conditional candidate target primary and secondary service cells PSCells within the current service second communication node.

[0101] Among them, the maximum number is the maximum total number of all working and service frequencies of the second communication node; or, the maximum number is the local maximum number of the SN second communication node at a certain working and service frequency.

[0102] Wherein, when the maximum number is a preset value, the second communication node is prohibited from locally pre-configuring any conditional candidate target primary and secondary serving cells PSCell.

[0103] Furthermore, if the above “maximum number” is 0, it means that the secondary base station SN is not going to pre-configure any candidate target secondary cell Candidate PScell / SCG locally.

[0104] In an exemplary embodiment, sending a second dual-connection control message to the first communication node includes: sending a second release message to the first communication node, wherein the second release message is used to inform the first communication node of one or more conditional candidate target primary and secondary service cells PSCell and related resources specified in the second communication node currently serving to be released, deleted or canceled.

[0105] The conditional candidate target primary or secondary serving cell PSCell to be released, deleted or cancelled is indicated by one or more of the following information:

[0106] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0107] The cell working and service frequency of the conditional candidate target cell PSCell;

[0108] The bandwidth of the conditional candidate target cell PSCell;

[0109] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0110] Wait for the second communication node to release, delete or cancel the number of conditional candidate PSCells in the second communication node.

[0111] First of all, it should be noted that the solution of the present application is applied to the management of primary and secondary services in conditional candidate target cells. Fig. 9 This is a schematic diagram of the primary and secondary service small collaborative management scenario in the conditional candidate target cell, as shown in the attached figure. Fig. 9 As shown, the UE is currently in a dual-connection operation of simultaneous MN and SN services or pre-configured services. A UE dual-connection signaling connection is established between the master base station MN and the secondary base station SN.

[0112] In an application example, a method for a master base station MN to send query information to a secondary base station SN is provided.

[0113] The purpose of the process is that the master base station MN initiates an information query to the secondary base station SN, which is used to obtain the information of the candidate target secondary cell Candidate PScell / SCG in the current serving secondary base station SN.

[0114] Furthermore, the master base station MN requests the serving secondary base station SN to inform the master base station MN of information related to one or more candidate target secondary cells CandidatePScell / SCG that the SN has pre-configured through the existing secondary base station addition request (SN AdditionRequest) / secondary base station addition confirmation message (SN Addition Acknowledge) or secondary base station modification request (SNModificationRequest) / secondary base station modification confirmation (SN Modification Acknowledge) signaling process between the master and secondary base stations.

[0115] Furthermore, the above-mentioned "Candidate PScell / SCG related information" may include but is not limited to: the cell global ID CGI (Cell Global ID) of these cells, the cell operating frequency (Carrier Frequency) and bandwidth (Bandwidth), the physical cell ID PCI (Physical Cell ID), the total number of Candidate PScells pre-configured on each operating frequency or all, etc.

[0116] Furthermore, the above-mentioned "Candidate PScell / SCG related information" includes: an attribute indication of whether these cells can be applied for release / cancellation / deletion by the MN.

[0117] The master base station MN initiates a pre-configuration-oriented process to the secondary base station SN, which is used to limit the maximum number of pre-configured candidate PScells / SCGs in the current serving secondary base station SN.

[0118] Furthermore, the master base station MN informs the serving secondary base station SN of the maximum number of candidate target secondary cells Candidate PScell / SCGs that the SN is allowed to pre-configure locally through the existing SN Addition Request / Acknowledge or SN Modification Request / Acknowledge signaling process between the master and secondary base stations.

[0119] Furthermore, the above-mentioned "maximum number" can be the maximum total number of all local working frequencies of the SN, or it can be the local maximum number of a certain working frequency of the SN.

[0120] Furthermore, if the above "maximum number" is 0, it means that the MN prohibits the SN from locally pre-configuring any candidate PScell / SCG.

[0121] The master base station MN initiates a procedure for releasing a candidate target secondary cell to the secondary base station SN, which is used to apply for releasing / cancelling / deleting a candidate target secondary cell Candidate PScell / SCG in the current serving secondary base station SN.

[0122] Further, the master base station MN requests the serving secondary base station SN through the existing SN Release Request / Acknowledge or SN Modification Request / Acknowledge signaling process between the master and secondary base stations: the SN releases / cancels / deletes one or more local candidate target secondary cells Candidate PScell / SCG and related resources.

[0123] Furthermore, the candidate PScell / SCG to be released / canceled / deleted by the SN can be indicated by the cell global ID CGI (Cell Global ID), or the cell operating frequency (Carrier Frequency) and bandwidth (Bandwidth), or the physical cell ID PCI (Physical Cell ID), or the number of Candidate PScells to be released by the SN.

[0124] In an application example, a method for a secondary base station SN to send information to a primary base station MN is provided.

[0125] The secondary base station SN initiates an information exchange process with the primary base station MN, which is used to actively inform the MN of the situation of the candidate target secondary cell Candidate PScell / SCG in the current serving secondary base station SN.

[0126] Furthermore, the secondary base station SN actively informs the MN of information related to one or more candidate target secondary cells CandidatePScell / SCG pre-configured by the SN through the existing SN Modification Required / Confirm signaling process between the primary and secondary base stations.

[0127] Furthermore, the above-mentioned "Candidate PScell / SCG related information" may include but is not limited to: the cell global ID CGI (Cell Global ID) of these cells, the cell operating frequency (Carrier Frequency) and bandwidth (Bandwidth), the physical cell ID PCI (Physical Cell ID), the total number of Candidate PScells pre-configured on each operating frequency or all, etc.

[0128] Furthermore, the above-mentioned "Candidate PScell / SCG related information" includes: an attribute indication of whether these cells can be applied for release / cancellation / deletion by the MN.

[0129] The secondary base station SN initiates a pre-configuration-oriented process to the primary base station MN, for applying for the pre-configured maximum number of candidate target secondary cells Candidate PScell / SCG in the current serving secondary base station SN.

[0130] Furthermore, the secondary base station SN applies to the MN through the existing SN Modification Required / Confirm signaling process between the primary and secondary base stations for the maximum number of candidate target secondary cells Candidate PScell / SCG that the SN is allowed to pre-configure locally.

[0131] Furthermore, the above-mentioned "maximum number" can be the maximum total number of all local working frequencies of the SN, or it can be the local maximum number of a certain working frequency of the SN.

[0132] Furthermore, if the above "maximum number" is 0, it means that the SN is not going to pre-configure any candidate PScell / SCG locally.

[0133] The secondary base station SN initiates a procedure for releasing a candidate target secondary cell to the primary base station MN, which is used to actively release / cancel / delete a candidate target secondary cell Candidate PScell / SCG in the current serving secondary base station SN.

[0134] Furthermore, the secondary base station SN informs the MN through the existing SN Release Required / Confirm or SN Modification Required / Confirm signaling process between the primary and secondary base stations that the SN is about to release / cancel / delete one or more local candidate target secondary cells Candidate PScell / SCG and related resources.

[0135] Furthermore, the candidate PScell / SCG to be released / canceled / deleted by the SN can be indicated by the cell global ID CGI (Cell Global ID), or the cell operating frequency (Carrier Frequency) and bandwidth (Bandwidth), or the physical cell ID PCI (Physical Cell ID), or the number of Candidate PScells to be released by the SN.

[0136] In an application example, a method for information exchange between a primary base station MeNB and a secondary base station SgNB when a UE is in an EN-DC dual connection operation is provided, such as Fig.10 As shown, a UE is already in EN-DC dual connection operation, that is, the UE is currently wirelessly connected to the main base station (MeNB) and the secondary base station (SgNB), and a UE-specific signaling connection (UE associatedsignaling connection) has been established on the X2 interface to transmit the relevant process signaling of the UE dual connection. Initially, the SgNB selects and pre-configures two candidate target secondary service cells (groups) PScell1 / SCG1 and PScell2 / SCG2 under local conditions based on the SCG configuration auxiliary information provided by the MeNB. They can have different operating frequencies and different operating bandwidths. The MeNB does not yet know the specific situation of the Candidate PScell ​​pre-configured on the SgNB side.

[0137] S101: MeNB sends an X2AP: SgNB Modification Request dedicated message to SgNB for inquiry, wherein the SgNB Modification Request includes an IE: SgNB replies to the primary and secondary service cell information (Candidate PScell ​​Information at SgNB Reporting), which is used to request SgNB to inform MeNB of the specific situation of the Candidate PScell ​​that has been pre-configured locally.

[0138] S102: SgNB replies to MeNB with X2AP: SgNB Modification RequestAcknowledge proprietary message, which includes IE: Candidate PScellInformation at SgNB, informing MeNB of the specific information of Candidate PScell ​​currently pre-configured locally on the SgNB side, namely, the NCGI identifiers of PScell1 and PScell2 and their respective working frequencies and bandwidth information, and also informing MeNB that PScell1 cannot be released / cancelled / deleted by MeNB, while PScell2 can be released / cancelled / deleted by MeNB.

[0139] The MeNB learns the specific situation of the Candidate PScell ​​currently pre-configured on the SgNB side, so as to provide reference and preparation for the subsequent resource coordination reconfiguration between the primary and secondary base stations.

[0140] In an applied example, as shown in the attached Fig.11 As shown: A UE is already in NR-DC@5GC dual connection operation, that is, the UE is currently wirelessly connected to the main base station MgNB and the secondary base station SgNB, and a UE-specific signaling connection (UEassociated signaling connection) has been established on the Xn interface to transmit the relevant process signaling of the UE dual connection. Initially, SgNB selects and pre-configures three candidate target secondary service cells (groups) PScell1 / SCG1, PScell2 / SCG2 and PScell3 / SCG3 according to the SCG configuration auxiliary information provided by MgNB, and they can have different working frequencies and different working bandwidths. Through the previous XnAP process, MgNB already knows the specific situation of the Candidate PScell ​​currently pre-configured on the SgNB side, but hopes that SgNB will reduce the total number of Candidate PScells.

[0141] S201: MgNB sends a dedicated message XnAP: S-Node Modification Request to SgNB, which includes the IE: Candidate PScell ​​Restriction Request Information, which is used to inform the SgNB of the maximum number of Candidate PScells allowed to be pre-configured locally in the future, such as 2.

[0142] S202: SgNB selects and decides to release / cancel / delete PScell3 / SCG3. SgNB replies to MgNB with a dedicated message XnAP: SgNB Modification Request Acknowledge, which includes the IE: Candidate PScell ​​Restriction Response Information, informing MgNB that the SgNB side locally agrees to retain up to 2 Candidate PScells, i.e., PScell3 / SCG3 will be released / cancelled / deleted, while PScell1 / SCG1 and PScell2 / SCG2 will be retained.

[0143] MgNB learns the specific situation of the updated pre-configured Candidate PScell ​​on the SgNB side, so as to provide reference and preparation for the subsequent resource coordination reconfiguration between the primary and secondary base stations.

[0144] In an applied example, as shown in the attached Fig.12 As shown: A single-connection operation UE is about to enter NGEN-DC@5GC dual-connection operation. The UE is about to be wirelessly connected to the main base station MeNB and the candidate target secondary base station SgNB. A UE-specific signaling connection UE associated signaling connection is about to be established on the Xn interface to transmit the relevant process signaling of the UE dual connection. Initially, the MeNB side has pre-configured several candidate Pcells / MCGs for CHO operation, but does not want the SgNB side to perform CPC operation in parallel, that is, the maximum number of Candidate PScells pre-configured locally by the SgNB is allowed to be 0.

[0145] S301: MeNB sends an XnAP: S-Node Addition Request dedicated message to SgNB, which includes the IE: Candidate PScell ​​Restriction Request Information, which is used to inform SgNB that the maximum number of Candidate PScells allowed to be pre-configured locally is 0, that is, SgNB is prohibited from performing CPC operations.

[0146] S302: SgNB selects and determines PScell1 / SCG1 currently serving the UE based on the SCG configuration auxiliary information provided by MeNB. SgNB replies to MeNB with XnAP: SgNB Addition RequestAcknowledge proprietary message, which includes the IE: Candidate PScell ​​Restriction ResponseInformation, informing MeNB that the SgNB side has learned that any Candidate PScell ​​will not be pre-configured conditionally in the future, that is, only PScell1 / SCG1 currently serving the UE is configured.

[0147] The UE then enters the NGEN-DC@5GC dual connection operation. After that, the SgNB side locally does not conditionally pre-configure any Candidate PScell ​​and does not perform CPC operation.

[0148] In an illustrative example, as shown in the attached Fig.13 As shown: A UE is already in EN-DC dual connection operation, that is, the UE is currently wirelessly connected to the main base station MeNB and the secondary base station SgNB, and a UE-specific signaling connection UEassociated signaling connection has been established on the X2 interface to transmit the relevant process signaling of the UE dual connection. According to the latest SCG configuration auxiliary information and local RRM measurement information provided by the MeNB, the SgNB re-preconfigures two candidate target secondary service cells (groups) PScell3 / SCG3 and PScell4 / SCG4 under local conditions, which can have different working frequencies and different working bandwidths. The MeNB does not yet know the specific situation of the Candidate PScell ​​pre-configured by the SgNB side.

[0149] S401: SgNB sends a dedicated message X2AP: SgNB Modification Required to MeNB, which includes the IE: Candidate PScell ​​Information at SgNB, which is used to proactively inform MeNB of the specific information of the pre-configured Candidate PScell ​​after local update on the SgNB side, namely: the NCGI identifiers of PScell3 and PScell4 and their respective working frequencies and bandwidth information. In addition, PScell3 cannot be released / cancelled / deleted by MeNB, while PScell4 can be released / cancelled / deleted by MeNB.

[0150] S402: The MeNB replies to the SgNB with a dedicated message X2AP: SgNB Modification Confirm, which includes the IE: MeNB to SgNB Container, which is used to inform the SgNB of the subsequent SCG reconfiguration auxiliary information.

[0151] The MeNB learns the specific situation of the conditionally pre-configured Candidate PScell ​​currently updated on the SgNB side, so as to provide reference and preparation for the subsequent resource coordination reconfiguration between the primary and secondary base stations.

[0152] In an applied example, as shown in the attached Fig.14 As shown: A UE is already in NR-DC@5GC dual connection operation, that is, the UE is currently wirelessly connected to the main base station MgNB and the secondary base station SgNB, and a UE-specific signaling connection UEassociated signaling connection has been established on the Xn interface to transmit the relevant process signaling of the UE dual connection. Initially, MgNB prohibits the SgNB side from performing local CPC operations, that is, SgNB is not allowed to pre-configure any Candidate PScell. SgNB wants to perform local CPC operations later based on local RRM measurement information, such as conditionally pre-configuring 1 candidate target secondary service cell (group) PScell5 / SCG5.

[0153] S501: SgNB sends XnAP: S-Node Modification Required proprietary message to MgNB, which includes IE: CPC Operation Request Information, to apply to MgNB: the maximum number of candidate PScell / SCGs that SgNB is allowed to pre-configure locally, such as 1.

[0154] S502: MgNB replies to SgNB with XnAP: S-Node Modification Confirm proprietary message, which includes IE: CPC Operation Response Information, which is used to inform SgNB to confirm the maximum number of candidate target secondary cells Candidate PScell / SCG that SgNB is allowed to pre-configure locally in the future.

[0155] The SgNB learns that the maximum number of candidate target secondary cells Candidate PScell / SCG allowed to be pre-configured locally is 1, so as to serve as a reference and preparation for pre-configuring candidate target secondary cells PScell5 / SCG5.

[0156] In an applied example, as shown in the attached Fig.15 As shown: A UE is in NGEN-DC@5GC dual connection operation, that is, the UE is currently wirelessly connected to the main base station MeNB and the secondary base station SgNB, and a UE-specific signaling connection UEassociated signaling connection has been established on the Xn interface to transmit the relevant process signaling of the UE dual connection. Initially, SgNB has pre-configured two candidate target secondary service cells (groups) PScell1 / SCG1 and PScell2 / SCG2, and then SgNB hopes to actively release / cancel / delete the relevant resources of the local PScell2 / SCG2.

[0157] S601: SgNB sends a proprietary message XnAP: S-Node Release Required to MeNB, which includes the IE: Candidate PScell(s) to be Canceled Information, informing MeNB that the SgNB side is about to actively release / cancel / delete the relevant resources of the local PScell2 / SCG2.

[0158] S602: MeNB replies to SgNB with XnAP: S-Node Release Confirm proprietary message, which includes IE: Candidate PScell(s) Canceled Information, to inform SgNB that MeNB has confirmed that SgNB has released / cancelled / deleted the relevant resources of local PScell2 / SCG2.

[0159] The MeNB learns the specific situation of the currently updated pre-configured Candidate PScell ​​on the SgNB side, and only PScell1 / SCG1 remains, which serves as a reference and preparation for the subsequent resource coordination reconfiguration between the primary and secondary base stations.

[0160] In an exemplary implementation, this embodiment provides a cell management device. Fig.16 A schematic diagram of the structure of a cell management device provided in the present application. The device can be applied to the situation of collaboratively managing candidate target cells under multi-(dual) connection operation. The device is configured in the first communication node; the cell management device can be implemented by software and / or hardware.

[0161] like Fig.16 As shown, the cell management device provided in the embodiment of the present application mainly includes a first sending module 161 and a first receiving module 162 .

[0162] The first sending module 161 is configured to send a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells.

[0163] The first receiving module 162 is configured to receive relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells sent by the second communication node.

[0164] In an exemplary implementation, the first dual-connectivity control message includes one or more of the following: an inquiry message, a pre-configuration message, and a release message.

[0165] In an exemplary implementation, the first dual connectivity control message is carried by secondary base station addition request signaling, or the first dual connectivity control message is carried by secondary base station modification request signaling.

[0166] In an exemplary embodiment, the first sending module 161 is configured to send an inquiry message to the second communication node, wherein the inquiry message is used to inquire about relevant information of the conditional candidate target cell primary and secondary serving cells PSCell within the second communication node currently serving.

[0167] In an exemplary implementation, the relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells includes one or more of the following:

[0168] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0169] The cell working and service frequency of the conditional candidate target cell PSCell;

[0170] The bandwidth of the conditional candidate target cell PSCell;

[0171] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0172] The total number of conditional candidate PSCells allowed on each working and serving frequency point;

[0173] The total number of pre-configured conditional candidate PSCells allowed in the second communication node.

[0174] In an exemplary implementation, the relevant information about the change of the primary and secondary serving cells PSCell in the conditional candidate target cells includes: attribute type indication information of the candidate target cell PSCell.

[0175] Furthermore, the attribute indication information refers to an attribute indication of whether the candidate target cell PSCell can be applied for release, cancellation or deletion by the first communication node.

[0176] In an exemplary embodiment, the first sending module 161 is configured to send a first pre-configuration message to the second communication node, wherein the first pre-configuration message is used to limit the maximum number of pre-configured conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

[0177] In an exemplary embodiment, the maximum number is the maximum total number of the second communication node at all working and service frequencies; or, the maximum number is the local maximum number of the SN second communication node at a certain working and service frequency.

[0178] In an exemplary embodiment, when the maximum number is a preset value, the second communication node is prohibited from locally pre-configuring any conditional candidate target primary and secondary serving cells PSCell.

[0179] In an exemplary embodiment, the first sending module 161 is configured to send a first release message to the second communication node, wherein the first release message is used to instruct the second communication node to release or delete or cancel one or more conditional candidate target primary and secondary service cells PSCell specified within the second communication node currently serving.

[0180] In an exemplary implementation, the conditional candidate target primary or secondary serving cell PSCell to be released, deleted or cancelled is indicated by one or more of the following information:

[0181] The cell global identifier CGI of the conditional candidate target cell PSCell;

[0182] The cell working and service frequency of the conditional candidate target cell PSCell;

[0183] The bandwidth of the conditional candidate target cell PSCell;

[0184] The physical cell identifier PCI of the conditional candidate target cell PSCell;

[0185] Wait for the second communication node to release, delete or cancel the number of conditional candidate PSCells in the second communication node.

[0186] The cell management device provided in this embodiment can execute the cell management method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not described in detail in this embodiment, please refer to the cell management method provided in any embodiment of the present invention.

[0187] It is worth noting that in the embodiment of the above-mentioned cell management device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0188] In an exemplary implementation, this embodiment provides a cell management device. Fig.17 A schematic diagram of the structure of a cell management device provided in the present application. The device can be applied to the situation of collaboratively managing candidate target cells under multi-(dual) connection operation. The device is configured at the second communication node; the cell management device can be implemented by software and / or hardware.

[0189] like Fig.17 As shown, the cell management device provided in the embodiment of the present application mainly includes a second sending module 171.

[0190] The second sending module 171 is configured to send a second dual connectivity control message to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node.

[0191] In an exemplary implementation, the second dual-connectivity control message includes one or more of the following: a notification message, a pre-configuration message, and a release message.

[0192] In an exemplary implementation, the second dual connectivity control message is carried by secondary base station modification request signaling.

[0193] In an exemplary embodiment, the second sending module 171 is configured to actively send a notification message to the first communication node, wherein the notification message is used to actively inform the first communication node of relevant information of a conditional candidate target cell PScell ​​in the second communication node currently served by the first communication node.

[0194] In an exemplary embodiment, the second sending module 171 is configured to send a second pre-configuration message to the first communication node, wherein the second pre-configuration message is used to apply to the first communication node for the pre-configured maximum allowed number of conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

[0195] In an exemplary embodiment, the second sending module 171 is configured to send a second release message to the first communication node, wherein the second release message is used to inform the first communication node to release, delete or cancel one or more conditional candidate target primary and secondary service cells PSCell and related resources specified in the second communication node currently serving.

[0196] The cell management device provided in this embodiment can execute the cell management method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of executing the method. For technical details not described in detail in this embodiment, please refer to the cell management method provided in any embodiment of the present invention.

[0197] It is worth noting that in the embodiment of the above-mentioned cell management device, the various units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0198] The present application also provides a device, Fig.18 is a schematic diagram of the structure of a device provided in an embodiment of the present application, such as Fig.18 As shown, the device includes a processor 181, a memory 182, an input device 183, an output device 184 and a communication device 185; the number of processors 181 in the device can be one or more. Fig.18 A processor 181 is taken as an example; the processor 181, memory 182, input device 183 and output device 184 in the device can be connected by a bus or other means. Fig.18 The example of connecting through bus is taken in the following.

[0199] The memory 182, as a computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as the program instructions / modules corresponding to the cell management method in the embodiment of the present application (for example, the first sending module 161 and the first receiving module 162 in the cell management device). Another example is the program instructions / modules corresponding to the cell management method in the embodiment of the present application (for example, the second sending module 171 in the cell management device). The processor 181 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 182, that is, implementing any cell management method provided in the embodiment of the present application.

[0200] The memory 182 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the device, etc. In addition, the memory 182 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 182 may further include a memory remotely arranged relative to the processor 181, and these remote memories may be connected to the device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0201] The input device 183 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the device. The output device 184 may include a display device such as a display screen.

[0202] The communication device 185 may include a receiver and a transmitter. The communication device 185 is configured to perform information transmission and reception communication according to the control of the processor 181.

[0203] It should be noted that, when the above-mentioned device is a first communication node, the processor 181 executes various functional applications and data processing by running the program stored in the system memory 182, for example, implementing the cell management method provided in the embodiment of the present application, the method including:

[0204] Sending a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of a primary and secondary serving cell PSCell in a conditional candidate target cell;

[0205] Receive relevant information of the primary and secondary service cells PSCell in the conditional candidate target cells sent by the second communication node.

[0206] Of course, those skilled in the art can understand that the processor 111 can also implement the technical solution of the cell management method provided in any embodiment of the present application. The hardware structure and function of the device can refer to the content explanation of this embodiment.

[0207] It should be noted that, when the above-mentioned device is a second communication node, the processor 181 executes various functional applications and data processing by running the program stored in the system memory 182, for example, implementing the cell management method provided in the embodiment of the present application, the method including:

[0208] A second dual connectivity control message is sent to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node.

[0209] Of course, those skilled in the art can understand that the processor 610 can also implement the technical solution of the cell management method provided in any embodiment of the present application. The hardware structure and function of the device can refer to the content explanation of this embodiment.

[0210] In an exemplary embodiment, the present application also provides a storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute a cell management method when executed by a computer processor, and the method is applied to a first communication node, including:

[0211] Sending a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of a primary and secondary serving cell PSCell in a conditional candidate target cell;

[0212] Receive relevant information of the primary and secondary service cells PSCell in the conditional candidate target cells sent by the second communication node.

[0213] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application, whose computer executable instructions are not limited to the method operations described above, can also execute related operations in the cell management method provided in any embodiment of the present application.

[0214] The embodiment of the present application further provides a storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute a cell management method when executed by a computer processor, wherein the method is applied to a second communication node, including:

[0215] A second dual connectivity control message is sent to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node.

[0216] Of course, the storage medium containing computer executable instructions provided in the embodiment of the present application, whose computer executable instructions are not limited to the method operations described above, can also execute related operations in the cell management method provided in any embodiment of the present application.

[0217] Through the above description of the implementation method, the technicians in the relevant field can clearly understand that the present application can be implemented with the help of software and necessary general hardware, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application can be essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0218] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application.

[0219] It will be appreciated by those skilled in the art that the term user terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser or a vehicle-mounted mobile station.

[0220] In general, various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof. For example, some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software that can be executed by a controller, microprocessor or other computing device, although the present application is not limited thereto.

[0221] Embodiments of the present application may be implemented by executing computer program instructions by a data processor of a mobile device, for example in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0222] The block diagram of any logic flow in the accompanying drawings of the present application can represent program steps, or can represent interconnected logic circuits, modules and functions, or can represent a combination of program steps and logic circuits, modules and functions. The computer program can be stored on a memory. The memory can have any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (ROM), random access memory (RAM), optical memory device and system (digital versatile disc DVD or CD disc), etc. Computer-readable media may include non-transient storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (FGPA) and a processor based on a multi-core processor architecture.

[0223] By way of exemplary and non-limiting examples, a detailed description of exemplary embodiments of the present application has been provided above. However, various modifications and adjustments to the above embodiments will be apparent to those skilled in the art when considered in conjunction with the accompanying drawings and claims, but will not depart from the scope of the present invention. Therefore, the proper scope of the present invention will be determined according to the claims.

Claims

1. A cell management method, characterized in that: The method is applied to a first communication node, comprising: Sending a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of a primary and secondary serving cell PSCell in a conditional candidate target cell; Receiving relevant information of a primary and secondary serving cell PSCell in a conditional candidate target cell sent by a second communication node; The first dual-connectivity control message includes one or more of the following: an inquiry message, a pre-configuration message, and a release message; The sending a first dual-connectivity control message to the second communication node includes: A first pre-configuration message is sent to the second communication node, wherein the first pre-configuration message is used to limit the maximum number of pre-configured conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

2. The method according to claim 1, characterized in that: The first dual connectivity control message is carried by a secondary base station addition request signaling, or the first dual connectivity control message is carried by a secondary base station modification request signaling.

3. The method according to claim 1, characterized in that The sending a first dual-connectivity control message to the second communication node includes: An inquiry message is sent to the second communication node, wherein the inquiry message is used to inquire about relevant information of a primary and secondary service cell PSCell of a conditional candidate target cell within the second communication node currently serving.

4. The method according to claim 3, characterized in that The relevant information of the primary and secondary serving cells PSCell in the conditional candidate target cells includes one or more of the following: The cell global identifier CGI of the conditional candidate target cell PSCell; The cell working and service frequency of the conditional candidate target cell PSCell; The bandwidth of the conditional candidate target cell PSCell; The physical cell identifier PCI of the conditional candidate target cell PSCell; The total number of conditional candidate PSCells allowed on each working and serving frequency point; The total number of pre-configured conditional candidate PSCells allowed in the second communication node.

5. The method according to claim 1, characterized in that The relevant information about the change of the primary and secondary serving cells PSCell in the conditional candidate target cells includes: attribute indication information of the candidate target cell PSCell.

6. The method according to claim 5, characterized in that The attribute type indication information refers to an attribute type indication of whether the candidate target cell PSCell can be applied for release, cancellation or deletion by the first communication node.

7. The method according to claim 1, characterized in that The maximum number is the maximum total number of the second communication node on all working and service frequencies; or, the maximum number is the local maximum number of the SN second communication node on a certain working and service frequency.

8. The method according to claim 1, characterized in that In the case where the maximum number is a preset value, the second communication node is prohibited from locally pre-configuring any conditional candidate target primary and secondary serving cells PSCell.

9. The method according to claim 1, characterized in that: The sending a first dual-connectivity control message to the second communication node includes: A first release message is sent to the second communication node, wherein the first release message is used to instruct the second communication node to release, delete or cancel one or more conditional candidate target primary and secondary service cells PSCells specified in the second communication node currently serving.

10. The method according to claim 9, characterized in that The conditional candidate target primary or secondary serving cell PSCell to be released, deleted or cancelled is indicated by one or more of the following information: The cell global identifier CGI of the conditional candidate target cell PSCell; The cell working and service frequency of the conditional candidate target cell PSCell; The bandwidth of the conditional candidate target cell PSCell; The physical cell identifier PCI of the conditional candidate target cell PSCell; Wait for the second communication node to release, delete or cancel the number of conditional candidate PSCells in the second communication node.

11. A cell management method, characterized in that: The method is applied to a second communication node, comprising: Sending a second dual connectivity control message to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node; The second dual connection control message includes one or more of the following: a notification message, a pre-configuration message, and a release message; The sending a second dual connectivity control message to the first communication node includes: A second pre-configuration message is sent to the first communication node, wherein the second pre-configuration message is used to apply to the first communication node for the pre-configured maximum allowed number of conditional candidate target primary and secondary service cells PSCells currently serving the second communication node.

12. The method according to claim 11, characterized in that The second dual connectivity control message is carried by the secondary base station modification request signaling.

13. The method according to claim 11, characterized in that The sending a second dual connectivity control message to the first communication node includes: Actively send a notification message to the first communication node, wherein the notification message is used to actively inform the first communication node of relevant information of a conditional candidate target cell PScell ​​in the second communication node currently served by the first communication node.

14. The method according to claim 11, characterized in that The sending a second dual connectivity control message to the first communication node includes: A second release message is sent to the first communication node, wherein the second release message is used to inform the first communication node to release, delete or cancel one or more conditional candidate target primary and secondary service cells PSCell and related resources specified in the second communication node currently serving.

15. A cell management device, characterized in that: The device is configured at a first communication node and includes: A first sending module is configured to send a first dual connectivity control message to the second communication node, wherein the first dual connectivity control message is used to instruct the second communication node to manage relevant information of the PSCell in the conditional candidate target cell; A first receiving module is configured to receive relevant information of a PSCell in a conditional candidate target cell sent by a second communication node; The first dual-connectivity control message includes one or more of the following: an inquiry message, a pre-configuration message, and a release message; The first sending module is configured to send a first pre-configuration message to the second communication node, wherein the first pre-configuration message is used to limit the maximum number of pre-configured conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

16. A cell management device, characterized in that: The device is configured at the second communication node, and includes: A second sending module is configured to send a second dual connectivity control message to the first communication node, wherein the second dual connectivity control message is used to apply for or send relevant information of a PSCell in a conditional candidate target cell to the first communication node; The second dual connection control message includes one or more of the following: a notification message, a pre-configuration message, and a release message; The second sending module is configured to send a second pre-configuration message to the first communication node, wherein the second pre-configuration message is used to apply to the first communication node for the pre-configured maximum allowed number of conditional candidate target primary and secondary service cells PSCells within the current serving second communication node.

17. A device, characterized in that include: one or more processors; A memory for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1 to 14.

18. A storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 14 is implemented.

Images