Method and system for activating and deactivating cell group, and storage medium

Abstract

The invention provides a cell group activation and deactivation method and system and a storage medium, and the method comprises the steps: a terminal sends a cell group activation request or a cell group deactivation request to a corresponding superior network node if judging that a triggering condition for requesting cell group activation or deactivation is satisfied; the terminal receives a cell group activation instruction or a cell group deactivation instruction sent by the superior network node; and the terminal executes an activation or deactivation operation corresponding to the cell group activation instruction or the cell group deactivation instruction. According to the method, the system and the storage medium disclosed by the invention, an activation and deactivation mechanism of the cell group in a multi-connection scene is provided, network resources can be utilized more quickly and flexibly, the energy consumption of the terminal is effectively saved, and the time delay of the secondary cell from configuration to activation is shortened.

Description

[0001] This application is a divisional application of a patent application with an application date of June 30, 2021, application number CN202110738682.6, and invention name “Cell group activation and deactivation method, system and storage medium”. Technical Field

[0002] The present invention relates to the field of communication technology, and in particular to a method, system and storage medium for activating and deactivating a cell group. Background Art

[0003] With the development of 5G technology, the spectrum of 5G continues to evolve to higher frequency bands (100GHz band). On the other hand, the spectrum of 4G will gradually begin to be re-cultivated as the 5G network is continuously deployed on a large scale. Therefore, multi-band overlapping deployment will be a common deployment method for future mobile networks (such as 5G / 6G). In the current 3GPP protocol, the UE supports dual-connection mode at most, that is, connecting to one master node (Master Node, MN) and one secondary node (Secondary Node, SN) at the same time. When the UE is in multi-connection mode, multiple secondary cell groups can be configured for the UE. However, under the existing dual-connection technology framework, the management of multiple secondary cell groups is not considered. Therefore, a technical solution for cell group activation and deactivation in a multi-connection scenario is required. Summary of the invention

[0004] In view of this, a technical problem to be solved by the present invention is to provide a method, system and storage medium for activating and deactivating a cell group.

[0005] According to the first aspect of the present disclosure, a method for activating and deactivating a cell group is provided, comprising: if a terminal determines that a trigger condition for requesting cell group activation or deactivation is met, the terminal sends a cell group activation request or a cell group deactivation request to a corresponding superior network node; wherein the terminal is configured with a master node MN and one or more SNs; the terminal receives a cell group activation indication or a cell group deactivation indication sent by the superior network node; and the terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication.

[0006] Optionally, the terminal is not configured with the SCN, or the terminal is configured with one SCN, and the SCN is configured with one or more SNs.

[0007] Optionally, the terminal is a first trigger node, and the method further includes: if the second trigger node determines that the trigger condition for cell group activation or deactivation is met, then the cell group activation node indication or the cell group deactivation node indication is sent to the corresponding second subordinate network node; wherein, the second trigger node includes: the MN; if the second subordinate network node determines to accept the cell group activation node indication or the cell group deactivation node indication, then the second trigger node generates the cell group activation indication or the cell group deactivation indication according to the feedback information sent by the second subordinate network node and sends it to the terminal, or instructs the second subordinate network node to send the cell group activation indication or the cell group deactivation indication to the terminal.

[0008] Optionally, the message carried by the cell group activation indication or the cell group deactivation indication includes at least one of the following: an RRC message, a MAC CE message, and a DCI message; the information carried by the cell group activation indication includes at least one of the following: a cell group ID, SCell Index information, and RACH resource information; the information carried by the cell group deactivation indication includes: a cell group ID.

[0009] Optionally, the terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication, including: the terminal receives the cell group activation indication, and based on the RACH resource information and the SCell Index information, activates the SCell corresponding to the SCell Index information in the cell group corresponding to the cell group ID; or, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or only activates the PSCell in this cell group; the terminal receives the cell group deactivation indication, and performs a deactivation operation on the cell group corresponding to the cell group ID to deactivate all SCells in this cell group.

[0010] Optionally, the upper-level network node sends a cell group activation node indication or a cell group deactivation node indication to the first lower-level network node; if the first lower-level network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends an indication rejection feedback message; the second trigger node sends a cell group activation node indication or a cell group deactivation node indication to the second lower-level network node; if the second lower-level network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends the indication rejection feedback message; wherein, the information carried in the indication rejection feedback message includes: rejection reason information.

[0011] Optionally, the message carrying the cell group activation node indication or the cell group deactivation node indication includes: an Xn message.

[0012] Optionally, the terminal uses a first message to send the cell group activation request or the cell group deactivation request; wherein the first message includes at least one of the following: an RRC message, a MAC CE; the information carried by the cell group activation request or the cell group deactivation request includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

[0013] Optionally, the upper-level network node includes: the MN, the SCN; the first lower-level network node of the MN includes: the SCN, the SN; the first lower-level network node of the SCN includes: the SN; if the upper-level network node determines to accept the cell group activation request or the cell group deactivation request, it generates a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the corresponding first lower-level network node and sends it to the terminal, or instructs the corresponding first lower-level network node to send a cell group activation indication or a cell group deactivation indication to the terminal, including: if the upper-level network node determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation indication or a cell group deactivation indication to the first lower-level network node. A lower-level network node sends a cell group activation node indication or a cell group deactivation node indication, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; wherein the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and terminal ID information; the upper-level network node generates the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and sends it to the terminal; or, the upper-level network node instructs the corresponding first lower-level network node to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

[0014] Optionally, the upper-level network node includes: the SN; and also includes: if the SN determines to accept the cell group activation request or the cell group deactivation request, generating the cell group activation indication or the cell group deactivation indication and sending it to the terminal.

[0015] Optionally, the second trigger node is the MN; the MN uses an inter-node message to send the cell group activation node indication or the cell group deactivation node indication; wherein the inter-node message includes: an Xn message; the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

[0016] Optionally, the second lower-level network node includes: the SCN and the SN; the sending of the cell group activation node indication or the cell group deactivation node indication to the corresponding second lower-level network node includes: the MN sends the cell group activation node indication or the cell group deactivation node indication to the SCN or the SN, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; the MN generates the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and sends it to the terminal; or, the MN instructs the corresponding SCN or the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal, or, the SCN instructs the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

[0017] Optionally, the terminal configures and maintains a deactivation timer duration for each cell group based on the configuration information sent by the network side; the terminal activates the cell group according to the network side and starts the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to the deactivation timer; wherein, when the terminal receives an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performs an uplink or downlink transmission corresponding to the cell group, the deactivation timer corresponding to the cell group is restarted.

[0018] Optionally, the signaling used by the network side to send the configuration information includes: RRC signaling.

[0019] According to the second aspect of the present disclosure, a cell group activation and deactivation system is provided, comprising: a terminal, an upper network node and a first lower network node; the terminal is configured with a master node MN and one or more SNs; the terminal is used to send a cell group activation request or a cell group deactivation request to the corresponding upper network node if it is determined that the triggering conditions for requesting cell group activation or deactivation are met; and receive a cell group activation indication or a cell group deactivation indication sent by the upper network node; the terminal is used to perform an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication.

[0020] Optionally, the terminal is not configured with the SCN, or the terminal is configured with one SCN, and the SCN is configured with one or more SNs.

[0021] Optionally, the terminal is a first trigger node, and the system further includes: a second trigger node and a second subordinate network node; the second trigger node is used to send the cell group activation node indication or the cell group deactivation node indication to the corresponding second subordinate network node if it is determined that the triggering conditions for cell group activation or deactivation are met; wherein the second trigger node includes: the MN; the second subordinate network node is used to generate the cell group activation indication or the cell group deactivation indication according to the feedback information sent by the second subordinate network node and send it to the terminal if it is determined that the cell group activation node indication or the cell group deactivation node indication is accepted, or instruct the second subordinate network node to send the cell group activation indication or the cell group deactivation indication to the terminal.

[0022] Optionally, the message carried by the cell group activation indication or the cell group deactivation indication includes at least one of the following: an RRC message, a MAC CE message, and a DCI message; the information carried by the cell group activation indication includes at least one of the following: a cell group ID, SCell Index information, and RACH resource information; the information carried by the cell group deactivation indication includes: a cell group ID.

[0023] Optionally, the terminal is used to receive the cell group activation indication, and activate the relevant SCell in the cell group corresponding to the cell group ID based on the RACH resource information and the SCell Index information; or, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or only activates the PSCell in this cell group; receives the cell group deactivation indication, and deactivates the cell group corresponding to the cell group ID to deactivate all SCells in this cell group.

[0024] Optionally, the upper-level network node is used to send a cell group activation node indication or a cell group deactivation node indication to the first lower-level network node; the first lower-level network node is used to send an indication rejection feedback message if it is determined that the cell group activation node indication or the cell group deactivation node indication is not accepted; the second trigger node is used to send a cell group activation node indication or a cell group deactivation node indication to the second lower-level network node; the second lower-level network node is used to send the indication rejection feedback message if it is determined that the cell group activation node indication or the cell group deactivation node indication is not accepted; wherein the information carried in the indication rejection feedback message includes: rejection reason information.

[0025] Optionally, the message carrying the cell group activation node indication or the cell group deactivation node indication includes: an Xn message.

[0026] Optionally, the terminal is used to send the cell group activation request or the cell group deactivation request using a first message; wherein the first message includes: an RRC message or a MAC CE; the information carried by the cell group activation request or the cell group deactivation request includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

[0027] Optionally, the upper-level network node includes: the MN, the SCN; the first lower-level network node of the MN includes: the SCN, the SN; the first lower-level network node of the SCN includes: the SN; the upper-level network node is used to send a cell group activation node indication or a cell group deactivation node indication to the first lower-level network node if it is determined to accept the cell group activation request or the cell group deactivation request, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; wherein the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and terminal ID information; the upper-level network node is also used to generate the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and send it to the terminal; or, instruct the corresponding first lower-level network node to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

[0028] Optionally, the upper network node includes: the SN; the SN is used to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal if it is determined to accept the cell group activation request or the cell group deactivation request.

[0029] Optionally, the second trigger node is the MN; the MN is used to send the cell group activation node indication or the cell group deactivation node indication using an inter-node message; wherein the inter-node message includes: an Xn message; the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

[0030] Optionally, the second lower-level network node includes: the SCN, the SN; the MN, used to send the cell group activation node indication or the cell group deactivation node indication to the SCN or the SN, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; the MN, used to generate the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and send it to the terminal; or, instruct the corresponding SCN or the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal, or, the SCN is used to instruct the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

[0031] Optionally, the terminal is used to configure and maintain the deactivation timer duration for each cell group based on the configuration information sent by the network side; activate the cell group according to the network side and start the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to this deactivation timer; the terminal is used to restart the deactivation timer corresponding to this cell group when receiving an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performing an uplink or downlink transmission corresponding to this cell group.

[0032] Optionally, the signaling used by the network side to send the configuration information includes: RRC signaling.

[0033] According to a third aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the instructions are executed by a processor to perform the method as described above.

[0034] The cell group activation and deactivation method, system and storage medium disclosed in the present invention propose an activation and deactivation mechanism for the cell group in a multi-connection scenario, which solves the problem that the prior art cannot flexibly and quickly activate and deactivate multiple cell groups, and can utilize network resources more quickly and flexibly; dynamically adjust the activation and deactivation status of the cell group according to user business needs, which can shorten the delay from configuration to activation and use of the auxiliary cell, and effectively save terminal energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0036] Figure 1A and 1BSchematic diagram of the scenario of multi-band overlapping deployment;

[0037] Figure 2 A flowchart of an embodiment of a method for activating and deactivating a cell group according to the present disclosure;

[0038] Figure 3 is a flowchart of another embodiment of a method for activating and deactivating a cell group according to the present disclosure;

[0039] Figure 4 A schematic diagram of a process of triggering cell group activation / deactivation by a terminal according to an embodiment of a method for activating and deactivating a cell group of the present disclosure;

[0040] Figure 5 A schematic diagram of a process of triggering cell group activation / deactivation by a terminal according to another embodiment of the method for activating and deactivating a cell group of the present disclosure;

[0041] Figure 6 A schematic diagram of a process of triggering cell group activation / deactivation by a terminal according to another embodiment of the method for activating and deactivating a cell group of the present disclosure;

[0042] Figure 7 A schematic diagram of a process of SCN triggering cell group activation / deactivation according to an embodiment of a method for activating and deactivating a cell group disclosed in the present invention;

[0043] Figure 8 A schematic diagram of a process of SN triggering cell group activation / deactivation according to an embodiment of a method for activating and deactivating a cell group of the present disclosure;

[0044] Fig. 9 A schematic diagram of a process of MN triggering cell group activation / deactivation according to an embodiment of a method for activating and deactivating a cell group of the present disclosure;

[0045] Fig.10 A schematic diagram of modules of an embodiment of a system for activating and deactivating a cell group according to the present disclosure;

[0046] Fig.11 The module diagram of another embodiment of the cell group activation and deactivation system according to the present disclosure is shown. DETAILED DESCRIPTION

[0047] The present disclosure is described more fully below with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are described. The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0048] The terms "first", "second", etc. in the following text are only used to distinguish between the two and have no other special meanings.

[0049] In the existing 3GPP protocol, UE supports dual connection mode at most, that is, UE is connected to one master node MN and one secondary node SN at the same time. The master node can be regarded as a master cell group MCG (MasterCell Group), including one PCell (PrimaryCell) and several SCells (Secondary Cell); the secondary node SN can be regarded as a secondary cell group SCG (Secondary Cell Group), including one PSCell and several SCells.

[0050] Multi-band overlapping deployment will be the deployment method for future mobile networks (such as 5G / 6G). Figure 1A As shown in Figure 1, UE is configured with multiple SNs. There is an interface between SN and MN, but no interface between SNs. MN is responsible for the coordination and interaction of wireless resources. Figure 1B As shown, the UE configures SN cascade (or the SN configures multiple secondary cell groups SCG), there is an interface between multiple small-coverage SNs and one large-coverage SN (secondary control node SCN), and there is no interface with the MN. The secondary control node SCN is responsible for the wireless resource coordination and interaction of multiple SNs.

[0051] From the perspective of user needs, the development of emerging technologies such as AR / XR has brought new business needs. In order to meet the continuous high-speed needs of users, multiple cell groups can be configured for UEs to ensure user business needs through multi-connection. On the other hand, with the deployment of high-frequency bands in the future, the radius of high-frequency cells continues to shrink. If only dual connections are supported, SN changes will frequently occur for mobile UEs. Relying solely on low-frequency MNs may not guarantee the continuity of high-speed services. It is also necessary to configure additional medium and low-frequency SNs to ensure business rates and use multi-connection methods to ensure consistency in user experience. Multi-standard multi-connection hybrid networking will be an inevitable trend in future technological development.

[0052] For a multi-connection scenario in which multiple secondary nodes are configured for a UE and each secondary node can be configured with multiple secondary cell groups, the present disclosure proposes a method for rapid activation and deactivation of multiple cell groups. In combination with the business needs of the UE, a flexible and rapid cell group activation and deactivation mechanism is used to further shorten the delay from configuration to activation of the secondary cells, reduce UE energy consumption, and achieve efficient and flexible use of network resources.

[0053] Figure 2 FIG. 1 is a flow chart of an embodiment of a method for activating and deactivating a cell group according to the present disclosure, as shown in FIG. Figure 2 As shown:

[0054] Step 201: If the first trigger node determines that the trigger conditions for cell group activation or deactivation control are met, it sends a cell group activation request or a cell group deactivation request to the corresponding upper network node.

[0055] In one embodiment, the first trigger node includes at least one of a terminal, a secondary control node SCN and a secondary node SN; the terminal is configured with a master node MN and one or more SNs; the terminal is not configured with SCN, or the terminal is configured with an SCN, and the SCN is configured with one or more SNs.

[0056] If the first trigger node determines that the trigger conditions for cell group activation or deactivation control are met, it determines whether there is an upper-level network node. If there is an upper-level network node, it sends a cell group activation request or a cell group deactivation request to the corresponding upper-level network node; if there is no upper-level network node, it sends a cell group activation request or a cell group deactivation indication to the corresponding lower-level network node.

[0057] Step 202: If the upper-level network node determines to accept the cell group activation request or the cell group deactivation request, it generates a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the corresponding first lower-level network node and sends it to the terminal, or instructs the corresponding first lower-level network node to send a cell group activation indication or a cell group deactivation indication to the terminal.

[0058] Step 203: The terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication. The terminal may request activation or deactivation of multiple cell groups simultaneously according to the cell group activation indication or the cell group deactivation indication.

[0059] Figure 3 FIG. 1 is a flow chart of an embodiment of a method for activating and deactivating a cell group according to the present disclosure, as shown in FIG. Figure 3 As shown:

[0060] Step 301: If the second triggering node determines that the triggering condition for cell group activation or deactivation control is met, it sends a cell group activation node indication or a cell group deactivation node indication to the corresponding second subordinate network node. The second triggering node includes MN and the like.

[0061] Step 302: If the second subordinate network node determines to accept the cell group activation node indication or the cell group deactivation node indication, the second trigger node generates a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the second subordinate network node and sends it to the terminal, or instructs the second subordinate network node to send a cell group activation indication or a cell group deactivation indication to the terminal.

[0062] The upper-level network nodes of the terminal include MN, SCN and SN, etc.; the upper-level network node of SCN is MN; the upper-level network node of SN includes MN or SCN, etc.; the lower-level network nodes of MN include SCN or SN; the lower-level network nodes of SCN include SN, etc.

[0063] For multi-connection scenarios (including scenarios such as configuring multiple auxiliary nodes or configuring multiple auxiliary cell groups for each auxiliary node), the triggering conditions for cell group activation or deactivation control may include multiple rules. For example, the triggering conditions include service requirements, network-side preset conditions, self-load and energy consumption, etc.; service requirements include indicators such as the amount of uplink / downlink data to be transmitted, service QoS, and service rate; network-side preset conditions include service volume judgment thresholds, timer duration, etc.; self-load and energy consumption conditions include SN overload triggering cell group deactivation, MN overload triggering cell group activation, and UE over-energy consumption triggering cell group deactivation, etc.

[0064] The bearer message of the cell group activation indication or the cell group deactivation indication includes an RRC message, a MAC CE message or a DCI message, etc.; the information carried by the cell group activation indication includes the cell group ID, SCell Index information, RACH (Random Access Channel) resource information, etc., and the information carried by the cell group deactivation indication includes the cell group ID, etc. The terminal receives the cell group activation indication, and based on the RACH resource information and the SCell Index information, activates the relevant SCell in the cell group corresponding to the cell group ID; or, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or only activates the PSCell in this cell group; the terminal receives the cell group deactivation indication, and deactivates the cell group corresponding to the cell group ID, so as to deactivate all SCells in this cell group.

[0065] In one embodiment, the upper network node sends a cell group activation node indication or a cell group deactivation node indication to the first lower network node. If the first lower network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends an indication rejection feedback message.

[0066] The second trigger node sends a cell group activation node indication or a cell group deactivation node indication to the second subordinate network node. If the second subordinate network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends an indication rejection feedback message; wherein the information carried in the indication rejection feedback message includes rejection reason information, etc. The message carrying the cell group activation node indication or the cell group deactivation node indication includes an Xn message, etc.

[0067] The information carried by the cell group activation request or the cell group deactivation request includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, SCell Index information, etc., which are optional. The upper network node can determine whether to accept the cell group activation request or the cell group deactivation request. If rejected, it will feedback a message to the first requesting node, indicating the rejection reason, the cell group ID of the rejected request, etc.

[0068] The upper-level network node may simultaneously instruct the first lower-level network node whether the first lower-level network node directly sends a cell group activation indication or a cell group deactivation indication to the terminal, or may receive feedback information from the first lower-level network node and have the upper-level network node send a cell group activation indication or a cell group deactivation indication to the terminal.

[0069] The first subordinate network node determines whether to accept the cell group activation request or cell group deactivation request of the superior network node. If accepted, the RACH resource information used for terminal activation, the activated SCell Index, etc. can be indicated in the feedback message; if rejected, the rejection reason (such as excessive load, etc.) and other information can be included in the feedback message.

[0070] Cell group activation indication or cell group deactivation indication can be carried by RRC message, MAC CE, DCI and other messages, and can indicate activation / deactivation of multiple cell groups and which SCells need to be activated. In the case of activation, all SCells in the group can be activated by default or PSCell can be activated by default, and the SCell Index of the SCells that need to be activated at the same time can be optionally indicated, and the RACH resource information used to activate the PSCell / SCell can be indicated at the same time.

[0071] The cell group activation / deactivation can be indicated by MAC CE through MN or SN in the activated state; if random access is required on PSCell or SCell when activating the cell group, the RACH resource of PSCell / SCell can be indicated through DCI or RRC message, and if not indicated, the terminal can make an autonomous selection. The DCI can be sent by MN or SN in the activated state to indicate the cell group ID for activation / deactivation and the activation / deactivation state; in the case of activation, the RACH resource information for PSCell / SCell activation and the SCellIndex that needs to be activated can be indicated at the same time.

[0072] The terminal activates / deactivates the specified cell group and related SCell according to the received bearer cell group activation indication or cell group deactivation indication; in the case of activation, if random access with the PSCell / SCell is required, the RACH resources indicated by the network are used (if indicated) or selected by itself (not indicated).

[0073] In one embodiment, the terminal configures the deactivation timer duration for each cell group based on the configuration information sent by the network side and maintains it; the terminal activates the cell group according to the network side and starts the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to the deactivation timer; when the terminal receives an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performs an uplink or downlink transmission corresponding to the cell group, the deactivation timer corresponding to the cell group is restarted. The signaling used by the network side to send the configuration information includes RRC signaling, etc.

[0074] In one embodiment, the first triggering node is a terminal, and the terminal uses a first message to send a cell group activation request or a cell group deactivation request. The first message includes: an RRC message or a MAC CE; the information carried by the cell group activation request or the cell group deactivation request includes the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, SCellIndex information, etc. SCell Index information, etc. are optional.

[0075] The upper-level network nodes include MN, SCN, etc., the first lower-level network nodes of MN include SCN, SN, etc., and the first lower-level network nodes of SCN include SN, etc. If the upper-level network node determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to the first lower-level network node, so that the SN receives the cell group activation node indication or the cell group deactivation node.

[0076] The information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and the terminal ID information. The upper network node generates a cell group activation indication or a cell group deactivation indication based on the confirmation result information generated by the SN and sends it to the terminal; or, the upper network node instructs the corresponding first lower network node to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0077] like Figure 4 As shown, the first triggering node is a terminal, the terminal is a UE, one SCN is SCN1, and the three SNs are SN1, SN2, and SN3. The UE determines whether the conditions for triggering cell group activation / deactivation are met based on actual business needs or judgment conditions preset by the network side, and if so, the cell group activation / deactivation process is started. The UE sends a cell group activation / deactivation request (cell group activation request or cell group deactivation request) to the MN via an RRC message or MAC CE. The information carried in the cell group activation / deactivation request includes the cell group ID of the SN requested to be activated / deactivated, and optionally includes information such as SCell Index information.

[0078] After receiving the cell group activation / deactivation request, the MN determines whether to accept it. The MN can determine whether to accept the cell group activation / deactivation request based on actual business needs or the judgment conditions preset by the network side. For the cell group ID accepted by the MN in the cell group activation / deactivation request, the MN sends a cell group activation / deactivation node indication to the relevant SN or SCN, including the cell group ID and the corresponding activation / deactivation status, UE ID information and other information.

[0079] For SNs that have interfaces with MNs, MNs directly send cell group activation / deactivation indication 2. If there is no interface between SNs and MNs, MNs send cell group activation / deactivation node indication 1 to SCNs. MNs can also indicate whether the corresponding SN or SCN directly sends cell group activation / deactivation indications to UEs.

[0080] After receiving the cell group activation / deactivation node indication 1, the SCN determines whether to accept the cell group activation / deactivation request according to the actual service requirements or the judgment conditions preset by the network side. For the accepted cell group ID, the cell group activation / deactivation node indication 1 is sent to the relevant SN respectively, including the cell group ID and the corresponding activation / deactivation status, UE ID information, etc. The SCN can indicate whether the cell group activation / deactivation indication is sent directly to the UE by the relevant SN.

[0081] After receiving the cell group activation / deactivation node indication sent by MN or SCN, SN determines whether to accept the cell group activation / deactivation request based on its own service load, service demand, etc. If accepted, it feeds back the cell group activation / deactivation confirmation to MN or SCN. For the scenario of activating the cell group, the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the list of SCell Indexes that need to be activated at the same time can be carried in the confirmation message.

[0082] If the SN rejects the cell group activation / deactivation request, it will feedback the cell group activation / deactivation rejection to the MN or SCN, and include the rejection reason (such as excessive load, etc.). If the MN or SCN instructs the SN to send the corresponding cell group activation / deactivation request directly to the UE, the SN generates a cell group activation / deactivation indication, which includes the cell group ID and the corresponding activation / deactivation status, and may also include the RACH resource configuration for random access when the PSCell / SCell is activated, the SCell Index list that needs to be activated at the same time, etc., and sends it to the UE.

[0083] Based on the feedback information from the SN, the SCN feeds back the cell group activation / deactivation confirmation or cell group activation / deactivation rejection to the MN, indicating the relevant cell group ID and the corresponding activation / deactivation status. It may also include the RACH resource configuration for random access when the PSCell / SCell is activated, the SCell Index information, and the SCell Index list that needs to be activated at the same time or the reason for rejection.

[0084] If the MN instructs the SCN to send a cell group activation / deactivation indication directly to the UE, the SCN generates a corresponding cell group activation / deactivation indication, including the cell group ID and the corresponding activation / deactivation status, and may also include information such as the RACH resource configuration for random access when the PSCell / SCell is activated, the SCell Index list that needs to be activated simultaneously, and sends it to the UE.

[0085] Based on the feedback information from the SN or SCN, the MN can choose to feedback one or more cell group activation / deactivation indications to the UE through RRC messages, MAC CE or DCI indications, including the cell group ID and the corresponding activation / deactivation status, and can indicate the SCell Index activated at the same time, the RACH resources required to activate the PSCell / SCell, etc.

[0086] According to the instructions of MN / SCN / SN, UE can perform random access on PSCell / SCell for activation scenarios (using RACH resources indicated by the network or selected by itself) and activate related SCells in the group (activate all or activate one or some SCells according to the instructions).

[0087] In one embodiment, Figure 5 As shown, the first triggering node is the terminal, and the upper network node is the SCN. The UE determines whether the conditions for triggering cell group activation / deactivation are met based on actual business needs or judgment conditions preset by the network side, and if so, starts the cell group activation / deactivation process. The UE can send a cell group activation / deactivation request (cell group activation request or cell group deactivation request) to the SCN via an RRC message or MAC CE, including the cell group ID of the SN requested to be activated / deactivated, and may include information such as SCell Index information.

[0088] After receiving the cell group activation / deactivation request, SCN determines whether to accept the cell group activation / deactivation request based on its own business load, business needs, etc.; if accepted, for the accepted cell group ID, it sends a cell group activation / deactivation node indication to the relevant SN respectively, including the cell group ID and the corresponding activation / deactivation status, UE ID and other information.

[0089] If the UE requests to deactivate a cell group, the SCN sends a cell group deactivation node indication to the SN1 or SN2 that has an interface with it and is configured for the UE, and deactivates the relevant SN at the same time. The SCN can indicate whether the relevant SN directly sends a cell group activation / deactivation indication to the UE. The SCN can determine whether it is necessary to send a cell group activation / deactivation request to the superior node MN, and the MN determines whether to accept the UE's request.

[0090] After SN1 or SN2 receives the request sent by SCN, it determines whether to accept the request based on its own service load, service demand, etc. If accepted, it will feedback the cell group activation / deactivation confirmation to SCN. For the activation scenario, the confirmation message may optionally include the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the SCell Index list that needs to be activated at the same time. If rejected, it will feedback the cell group activation / deactivation rejection to SCN, and include the rejection reason (such as excessive load, etc.).

[0091] If the SCN instructs the SN to send an indication directly to the UE, the SN generates a cell group activation / deactivation indication, which includes the cell group ID and the corresponding activation / deactivation status. It may also include information such as the RACH resource configuration for random access when the PSCell / SCell is activated and the SCell Index list that needs to be activated simultaneously, and sends it to the UE.

[0092] According to the feedback information from the SN, the SCN chooses to directly feedback one or more cell group activation / deactivation indications to the UE through RRC messages, MAC CE or DCI indications, including the cell group ID, which can indicate the SCell Index activated at the same time, the RACH resources required to activate the PSCell / SCell, etc.; and optionally sends a cell group activation / deactivation indication to the MN, including the UEID, and indicates the activation / deactivation status of the SN related to the MN, to assist the MN in resource scheduling and management. The SCN can also send a cell group activation / deactivation node indication to the MN, and the MN sends the cell group activation / deactivation indication to the UE. The UE performs the cell group activation / deactivation process according to the indication sent by the MN / SCN / SN.

[0093] In one embodiment, the upper network node is a SN. If the SN determines to accept a cell group activation request or a cell group deactivation request, it generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal. Figure 6 As shown, the first triggering node is the terminal, and the upper network node is the SN. The UE determines whether the conditions for triggering the deactivation of the cell group are met based on the actual business needs or the judgment conditions preset by the network side, and if so, the cell group deactivation process is started.

[0094] The UE can send a cell group deactivation request to one or more SNs via RRC message or MAC CE, and optionally include information such as the deactivation reason (such as no service demand, etc.); after receiving the cell group deactivation request, the SN determines whether to accept the deactivation request based on the actual service demand and the reason reported by the UE.

[0095] If accepted, the RRC message or MAC CE method is selected to feedback the cell group deactivation confirmation to the UE; at the same time, a cell group deactivation indication is optionally sent to the MN, including UE ID information, deactivation reason and other information, to assist the MN in resource scheduling and management. If rejected, the cell group deactivation indication (rejection) is fed back to the UE. The UE executes the cell group deactivation process according to the instructions of the SN; if the SN rejects the deactivation indication, the SN continues to be activated. After receiving the request from the UE, the SN can determine whether it is necessary to send a cell group activation / deactivation request to the upper node MN or SCN. The upper node MN or SCN determines whether to accept the UE's request and whether the upper node MN or SCN sends a cell group activation / deactivation request to the UE.

[0096] In one embodiment, the first triggering node is SCN, and SCN sends a cell group activation request or a cell group deactivation request using an inter-node message, and the inter-node message includes an Xn message, etc. The information carried by the cell group activation request or the cell group deactivation request includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, SCell Index information, etc.

[0097] The upper-level network node includes MN, and the first lower-level network node of MN includes SCN and SN; if MN determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to SCN, and SCN forwards the cell group activation node indication or the cell group deactivation node indication to SN. SCN or MN generates a cell group activation indication or a cell group deactivation indication based on the confirmation result information generated by SN and sends it to the terminal; or, SCN or MN instructs the corresponding SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0098] In one embodiment, Figure 7 As shown, the first triggering node is SCN, and SCN can determine whether it is necessary to send a cell group activation / deactivation request to MN, and MN evaluates whether the relevant activation / deactivation operation can be performed. MN feeds back the cell group activation / deactivation node indication to SCN, and MN can directly send the cell group activation / deactivation indication to UE after SCN and SN feed back the corresponding confirmation message; it can also instruct SCN or SN to send the corresponding cell group activation / deactivation indication to UE respectively.

[0099] SCN determines whether the conditions for triggering cell group activation / deactivation are met based on actual business needs or preset judgment conditions. If so, the cell group activation / deactivation process is initiated and a cell group activation / deactivation request is sent to the MN, including the UE ID, cell group ID and the corresponding activation / deactivation status. SCN can determine whether it is necessary to send a cell group activation / deactivation request to the MN, and evaluate whether the corresponding cell group activation / deactivation operation is allowed through the MN.

[0100] MN receives the cell group activation / deactivation request sent by SCN, determines whether to accept the request, and feeds back the cell group activation / deactivation node indication, including the cell group ID that receives the activation / deactivation request and the corresponding activation / deactivation status, UE ID, etc. It can also indicate whether the SCN or SN independently sends the indication to the UE and other information.

[0101] After SCN receives the cell group activation / deactivation node indication sent by MN, it sends the cell group activation / deactivation node indication to the relevant SN for the received cell group ID, including the cell group ID and the corresponding activation / deactivation status, UEID information, etc., and optionally indicates whether the SN independently sends the cell group activation / deactivation indication to the UE and other information.

[0102] After receiving the request sent by SCN, SN determines whether to accept the request based on its own business load, business needs, etc. If accepted, it will feedback the cell group activation / deactivation confirmation to SCN. For the activation scenario, the confirmation message may optionally include the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the SCell Index list that needs to be activated at the same time; if rejected, it will feedback the cell group activation / deactivation rejection to SCN, and include the reason for rejection (such as excessive load, etc.). For the accepted scenario, if SCN indicates that SN can directly send the cell group activation / deactivation indication to UE, then SN generates the corresponding cell group activation / deactivation indication and sends it to UE through RRC message, MAC CE or DCI indication.

[0103] According to the feedback information of SN, SCN feeds back the cell group activation / deactivation confirmation or rejection to MN, indicating the relevant cell group ID and the corresponding activation / deactivation status, and optionally including the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the list of SCell Indexes that need to be activated at the same time or the rejection reason. For the accepted scenario, if MN indicates that SCN can independently send activation / deactivation indication to UE, SCN generates cell group activation / deactivation indication and sends it to UE through RRC message, MAC CE or DCI indication.

[0104] According to the feedback information of SN or SCN, MN chooses to feedback one or more cell group activation / deactivation indications to UE through RRC message, MAC CE or DCI indication, including cell group ID and corresponding activation / deactivation status, and optionally indicates the SCell Index activated at the same time, RACH resources required for activating PSCell / SCell, etc. UE performs the cell group activation / deactivation process according to the indication of MN / SCN / SN.

[0105] In one embodiment, the first triggering node is SN, and SN uses inter-node messages to send a cell group activation request or a cell group deactivation request, and the inter-node messages include: Xn messages, etc. The upper-level network nodes of SN include MN and SCN, the first lower-level network nodes of MN include SCN and SN, and the first lower-level network nodes of SCN include SN.

[0106] If the upper network node of the SN determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to the SN. The upper network node of the SN generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal; or, the upper network node of the SN instructs the corresponding first lower network node to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0107] In one embodiment, Figure 8 As shown, the first triggering node is SN, and SN can determine whether it is necessary to send a cell group activation / deactivation request to the superior node MN or SCN, and the superior node determines whether to allow the relevant cell group activation / deactivation operation to be performed. If there is an interface between SN and MN, a cell group activation / deactivation request is sent to MN; if there is no interface between SN and MN, SN sends a cell group activation / deactivation request to SCN, and SCN determines whether to accept the request. If accepted, the request is sent to MN, and MN evaluates whether the relevant activation / deactivation operation can be performed. After SCN and SN feedback the corresponding confirmation message, MN can directly send a cell group activation / deactivation indication to UE; it can also instruct SCN or SN to send the corresponding cell group activation / deactivation indication to UE respectively.

[0108] The SN determines whether the conditions for triggering cell group activation / deactivation are met based on actual business needs or preset judgment conditions. If met, the cell group activation / deactivation process is initiated. The SN determines whether it is necessary to send a cell group activation / deactivation request to the MN or SCN. If no upper node evaluation is required, the SN directly generates a cell group activation / deactivation request and sends it to the UE.

[0109] After receiving the cell group activation / deactivation request sent by SN, SCN determines whether to accept the request. If accepted, it sends a cell group activation / deactivation request to MN, including the cell group ID and the corresponding activation / deactivation status, UE ID information, etc. The cell group activation / deactivation request may optionally include the RACH resource configuration for random access when activating the PSCell / SCell sent by SN, SCell Index information, and a list of SCell Indexes that need to be activated simultaneously.

[0110] MN receives the cell group activation / deactivation request sent by SCN or SN, determines whether to accept the request, and feeds back the cell group activation / deactivation node indication to SCN or SN, including the cell group ID of the accepted request and the corresponding activation / deactivation status, UE ID, etc. It can also indicate whether SCN or SN independently sends instructions to UE and other information.

[0111] After SCN receives the cell group activation / deactivation node indication sent by MN, it sends cell group activation / deactivation node indication to the relevant SN for the received cell group ID, including the cell group ID and the corresponding activation / deactivation status, UE ID information, etc., instructing SN to perform the corresponding activation / deactivation operation, and optionally indicates whether the SN independently sends the cell group activation / deactivation indication to the UE and other information.

[0112] If the MN instructs the SCN to send a cell group activation / deactivation indication, the SCN generates a cell group activation / deactivation indication, including the cell group ID and the corresponding activation / deactivation status, and optionally indicates the SCell Index activated at the same time, the RACH resources required to activate the PSCell / SCell, etc., and sends it to the UE via an RRC message, MAC CE or DCI indication.

[0113] After SN receives the cell group activation / deactivation node indication sent by MN or SCN, it performs the corresponding cell group activation / deactivation operation; for the accepted scenario, if MN or SCN indicates that SN can directly send the cell group activation / deactivation indication to UE, SN generates the corresponding cell group activation / deactivation indication and sends it to UE through RRC message, MAC CE or DCI indication.

[0114] If the MN decides to send a cell group activation / deactivation indication by the MN, the MN will choose to feed back one or more cell group activation / deactivation indications to the UE through RRC messages, MAC CE or DCI indications according to the request information of the SN or SCN, including the cell group ID and the corresponding activation / deactivation status, and optionally indicate the SCell Index activated at the same time, the RACH resources required for activating the PSCell / SCell, etc. The UE performs the cell group activation / deactivation process according to the indication of the MN / SCN / SN.

[0115] In one embodiment, the second triggering node is MN, and MN uses inter-node messages to send a cell group activation node indication or a cell group deactivation node indication, and the inter-node messages include Xn messages, etc. The second lower-level network nodes include SCN and SN; MN sends a cell group activation node indication or an upper cell group deactivation node indication to SCN or SN, so that SN receives the cell group activation node indication or the cell group deactivation node indication.

[0116] Based on the confirmation result information generated by the SN, the MN generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal; or, the MN instructs the corresponding SCN or SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal, or, the SCN instructs the SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0117] In one embodiment, Fig. 9 As shown, the second triggering node is MN. MN can choose to directly send a cell group activation / deactivation indication to the UE after the SCN and SN feed back corresponding confirmation messages; or it can instruct the SCN or SN to send corresponding cell group activation / deactivation indication to the UE respectively.

[0118] MN determines whether the conditions for triggering cell group activation / deactivation are met based on actual business needs or preset judgment conditions. If met, the cell group activation / deactivation process is initiated. MN sends a cell group activation / deactivation node indication to one or more SCNs or SNs, including an indication of the activation / deactivation cell group ID and the corresponding activation / deactivation status, UE ID, etc., and optionally indicates whether the SCN or SN sends the indication to the UE independently. For SNs that have an interface with MN, MN directly sends the cell group activation / deactivation indication. If there is no interface between SN and MN, MN sends the indication to the corresponding SCN.

[0119] After receiving the cell group activation / deactivation node indication, the SCN determines whether to accept the request. For the accepted cell group ID, the SCN sends the cell group activation / deactivation node indication to the relevant SN, including the cell group ID and the corresponding activation / deactivation status, UE ID information, etc., and optionally indicates whether the SN independently sends the cell group activation / deactivation indication to the UE and other information.

[0120] After receiving the request sent by MN or SCN, SN determines whether to accept the request based on its own service load, service demand, etc. If accepted, it will feedback the cell group activation / deactivation confirmation to MN or SCN. For the activation scenario, the confirmation message may optionally include the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the list of SCell Indexes that need to be activated at the same time; if rejected, it will feedback the cell group activation / deactivation rejection to MN or SCN, and include the rejection reason (such as excessive load, etc.).

[0121] For the accepted scenario, if the MN or SCN indicates that the SN can directly send a cell group activation / deactivation indication to the UE, the SN generates a corresponding cell group activation / deactivation indication and sends it to the UE via an RRC message, MAC CE or DCI indication.

[0122] According to the feedback information of SN, SCN feeds back the cell group activation / deactivation confirmation or rejection to MN, indicating the relevant cell group ID and the corresponding activation / deactivation status, which may include the RACH resource configuration for random access when PSCell / SCell is activated, SCell Index information, and the list of SCell Indexes that need to be activated at the same time or the rejection reason. For the accepted scenario, if MN indicates that SCN can send activation / deactivation indication to UE independently, SCN generates cell group activation / deactivation indication and sends it to UE through RRC message, MAC CE or DCI indication.

[0123] According to the feedback information of SN or SCN, MN feeds back one or more cell group activation / deactivation indications to UE through RRC message, MAC CE or DCI indication, including cell group ID and corresponding activation / deactivation status, and optionally indicates the SCell Index activated at the same time, RACH resources required for activating PSCell / SCell, etc. UE performs the cell group activation / deactivation process according to the indication of MN / SCN / SN.

[0124] In one embodiment, the present disclosure provides a timer-based implicit deactivation solution: the network side configures the cell group deactivation timer duration T for the UE through RRC signaling. SCG, the UE independently maintains the corresponding cell group deactivation timer for each configured cell group (SCG), and the deactivation timer duration of each cell group can be different. When the UE activates the cell group according to the network side instruction, the corresponding cell group deactivation timer is started, and the timer is restarted each time the uplink / downlink scheduling instruction of the SCell in the cell group is received or the uplink / downlink transmission is performed. When the timer times out, the UE implicitly deactivates the cell group, that is, no deactivation instruction from the network side is required.

[0125] In one embodiment, Fig.10 As shown, the present disclosure provides an activation and deactivation system for a cell group, including a first trigger node 1001, an upper network node 1002 and a first lower network node 1003. The first trigger node 1001 includes a terminal, a secondary control node SCN or a secondary node SN. The terminal is configured with a master node MN and one or more SNs; the terminal is not configured with an SCN, or the terminal is configured with an SCN, and the SCN is configured with one or more SNs.

[0126] If the first trigger node 1001 determines that the triggering condition for performing cell group activation or deactivation control is met, it sends a cell group activation request or a cell group deactivation request to the corresponding upper network node 1002. If the upper network node 1002 determines that the cell group activation request or the cell group deactivation request is accepted, it generates a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the corresponding first lower network node 1003 and sends it to the terminal, or instructs the corresponding first lower network node 1003 to send a cell group activation indication or a cell group deactivation indication to the terminal. The terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication.

[0127] In one embodiment, the cell group activation and deactivation system of the present disclosure further includes: a second trigger node 1102 and a second subordinate network node 1103. If the second trigger node 1102 determines that the trigger condition for performing cell group activation or deactivation control is met, it sends a cell group activation node indication or a cell group deactivation node indication to the corresponding second subordinate network node 1103.

[0128] The second trigger node 1102 includes MN. If the second subordinate network node 1103 determines to accept the cell group activation node indication or the cell group deactivation node indication, the second trigger node 1102 generates a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the second subordinate network node and sends it to the terminal 1101, or instructs the second subordinate network node 1103 to send a cell group activation indication or a cell group deactivation indication to the terminal 1101.

[0129] Terminal 1101 receives a cell group activation indication, and activates the relevant SCell in the cell group corresponding to the cell group ID based on the RACH resource information and the SCell Index information; alternatively, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or only activates the PSCell in this cell group; Terminal 1101 receives a cell group deactivation indication, and deactivates the cell group corresponding to the cell group ID to deactivate all SCells in this cell group.

[0130] The upper network node 1002 sends a cell group activation node indication or a cell group deactivation node indication to the first lower network node 1003. If the first lower network node 1003 determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends an indication rejection feedback message.

[0131] The second trigger node 1102 sends a cell group activation node indication or a cell group deactivation node indication to the second subordinate network node 1103. If the second subordinate network node 1103 determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, it sends an indication rejection feedback message, and the information carried in the indication rejection feedback message includes rejection reason information, etc.

[0132] In one embodiment, the first triggering node 1001 is a terminal, and the terminal uses a first message to send a cell group activation request or a cell group deactivation request, and the first message includes: an RRC message or a MAC CE. The information carried by the cell group activation request or the cell group deactivation request includes: a cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

[0133] The upper network node 1002 includes MN and SCN. The first lower network node of MN includes SCN and SN; the first lower network node of SCN includes SN. If the upper network node 1002 determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to the first lower network node, so that the SN receives the cell group activation node indication or the cell group deactivation node.

[0134] The upper network node 1002 generates a cell group activation indication or a cell group deactivation indication according to the confirmation result information generated by the SN and sends it to the terminal; or, instructs the corresponding first lower network node 1003 to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0135] In one embodiment, the upper network node 1002 includes: SN; if the SN determines to accept the cell group activation request or the cell group deactivation request, it generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal.

[0136] The first triggering node 1001 is SCN; SCN uses inter-node messages to send a cell group activation request or a cell group deactivation request, and the inter-node messages include: Xn messages. The upper-level network node 1002 includes: MN; the first lower-level network node 1003 of MN includes: SCN, SN; if MN determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to SCN, and SCN forwards the cell group activation node indication or the cell group deactivation node indication to SN.

[0137] The SCN or MN generates a cell group activation indication or a cell group deactivation indication based on the confirmation result information generated by the SN and sends it to the terminal; or, instructs the corresponding SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0138] In one embodiment, the first trigger node 1001 is a SN; the SN uses an inter-node message to send a cell group activation request or a cell group deactivation request; wherein the inter-node message includes: an Xn message. The upper-level network node 1002 of the SN includes: an MN and an SCN; the first lower-level network node 1003 of the MN includes: an SCN and an SN; the first lower-level network node 1003 of the SCN includes: an SN.

[0139] If the upper network node of the SN determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to the SN. The upper network node of the SN generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal, or instructs the corresponding first lower network node to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0140] In one embodiment, the second triggering node 1102 is a MN; the MN uses an inter-node message to send a cell group activation request or a cell group deactivation request; wherein the inter-node message includes: an Xn message. The second subordinate network node 1103 includes: an SCN and a SN; the MN sends a cell group activation node indication or an upper cell group deactivation node indication to the SCN or the SN, so that the SN receives the cell group activation node indication or the cell group deactivation node indication.

[0141] Based on the confirmation result information generated by the SN, the MN generates a cell group activation indication or a cell group deactivation indication and sends it to the terminal; or, instructs the corresponding SCN or SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal, or the SCN instructs the SN to generate a cell group activation indication or a cell group deactivation indication and send it to the terminal.

[0142] The terminal configures the deactivation timer duration for each cell group based on the configuration information sent by the network side and maintains it; the terminal activates the cell group according to the network side and starts the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to this deactivation timer; when the terminal receives an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performs an uplink or downlink transmission corresponding to this cell group, the terminal restarts the deactivation timer corresponding to this cell group.

[0143] In one embodiment, the present disclosure provides a computer-readable storage medium storing computer instructions, which implement the method in any of the above embodiments when the instructions are executed by a processor.

[0144] The cell group activation and deactivation method, system and storage medium in the above-mentioned embodiments propose an activation and deactivation mechanism for the cell group in a multi-connection scenario, which solves the problem that the prior art cannot flexibly and quickly activate and deactivate multiple cell groups, and can utilize network resources more quickly and flexibly; dynamically adjust the activation and deactivation status of the cell group according to user business needs, effectively saving terminal energy consumption; and can shorten the delay from configuration to activation of the secondary cell, thereby reducing terminal energy consumption.

[0145] The method and system of the present disclosure may be implemented in many ways. For example, the method and system of the present disclosure may be implemented by software, hardware, firmware, or any combination of software, hardware, and firmware. The above order of steps for the method is for illustration only, and the steps of the method of the present disclosure are not limited to the order specifically described above, unless otherwise specifically stated. In addition, in some embodiments, the present disclosure may also be implemented as a program recorded in a recording medium, which includes machine-readable instructions for implementing the method according to the present disclosure. Therefore, the present disclosure also covers a recording medium storing a program for executing the method according to the present disclosure.

[0146] The description of the present disclosure is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present disclosure to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present disclosure, and to enable those of ordinary skill in the art to understand the present disclosure and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A method for activating and deactivating a cell group, comprising: If the terminal determines that the triggering condition for requesting cell group activation or deactivation is met, it sends a cell group activation request or a cell group deactivation request to the corresponding upper network node; wherein the terminal is configured with a master node MN and one or more SNs; The terminal receives a cell group activation indication or a cell group deactivation indication sent by an upper network node; The terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication.

2. The method of claim 1, wherein: The terminal is not configured with the SCN, or the terminal is configured with one SCN, and the SCN is configured with one or more SNs.

3. The method according to claim 1 or 2, wherein: The terminal is a first triggering node, and the method further includes: If the second trigger node determines that the trigger condition for cell group activation or deactivation is met, the second trigger node sends the cell group activation node indication or the cell group deactivation node indication to the corresponding second subordinate network node; wherein the second trigger node includes: the MN; If the second subordinate network node determines to accept the cell group activation node indication or the cell group deactivation node indication, the second trigger node generates the cell group activation indication or the cell group deactivation indication according to the feedback information sent by the second subordinate network node and sends it to the terminal, or instructs the second subordinate network node to send the cell group activation indication or the cell group deactivation indication to the terminal.

4. The method of claim 1, wherein: The bearer message of the cell group activation indication or the cell group deactivation indication includes at least one of the following: an RRC message, a MAC CE message, and a DCI message; The information carried by the cell group activation indication includes at least one of the following: cell group ID, SCell Index information, and RACH resource information; The information carried by the cell group deactivation indication includes: a cell group ID.

5. The method according to claim 4, wherein the terminal performs an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication, comprising: The terminal receives the cell group activation indication, and activates the SCell corresponding to the SCell Index information in the cell group corresponding to the cell group ID based on the RACH resource information and the SCell Index information; or, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or activates only the PSCell in the cell group; The terminal receives the cell group deactivation indication, and performs a deactivation operation on the cell group corresponding to the cell group ID, so as to deactivate all SCells in the cell group.

6. The method of claim 3, further comprising: The upper network node sends a cell group activation node indication or a cell group deactivation node indication to the first lower network node; If the first subordinate network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, sending an indication rejection feedback message; The second triggering node sends a cell group activation node indication or a cell group deactivation node indication to a second subordinate network node; If the second subordinate network node determines that the cell group activation node indication or the cell group deactivation node indication is not accepted, sending the indication rejection feedback message; The information carried in the rejection indication feedback message includes: rejection reason information.

7. The method of claim 6, wherein: The message carrying the cell group activation node indication or the cell group deactivation node indication includes: Xn message.

8. The method of claim 1, wherein: The terminal sends the cell group activation request or the cell group deactivation request using a first message; Among them, the first message includes at least one of the following: RRC message, MAC CE; the information carried by the cell group activation request or the cell group deactivation request includes at least one of the following: the cell group ID to be activated or deactivated, the corresponding activation or deactivation status, and SCell Index information.

9. The method of claim 8, wherein: The upper network node includes: the MN and the SCN; the first lower network node of the MN includes: the SCN and the SN; the first lower network node of the SCN includes: the SN; If the upper network node determines to accept the cell group activation request or the cell group deactivation request, generating a cell group activation indication or a cell group deactivation indication according to the feedback information sent by the corresponding first lower network node and sending it to the terminal, or instructing the corresponding first lower network node to send a cell group activation indication or a cell group deactivation indication to the terminal includes: If the upper network node determines to accept the cell group activation request or the cell group deactivation request, it sends a cell group activation node indication or a cell group deactivation node indication to the first lower network node, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; The information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation state, and the terminal ID information; The upper network node generates the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and sends it to the terminal; or, The upper network node instructs the corresponding first lower network node to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

10. The method of claim 9, wherein: The upper network node includes: the SN; and further includes: If the SN determines to accept the cell group activation request or the cell group deactivation request, it generates the cell group activation indication or the cell group deactivation indication and sends it to the terminal.

11. The method according to claim 3, wherein the second triggering node is the MN; The MN sends the cell group activation node indication or the cell group deactivation node indication using an inter-node message; in, The inter-node message includes: Xn message; the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

12. The method according to claim 11, wherein the second subordinate network node comprises: The SCN, the SN; The sending the cell group activation node indication or the cell group deactivation node indication to the corresponding second subordinate network node includes: The MN sends the cell group activation node indication or the cell group deactivation node indication to the SCN or the SN, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; The MN generates the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and sends it to the terminal; or, The MN instructs the corresponding SCN or the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal, or, The SCN instructs the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

13. The method of claim 1, comprising: The terminal configures and maintains the deactivation timer duration for each cell group based on the configuration information sent by the network side; The terminal activates the cell group according to the network side and starts the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to the deactivation timer; When the terminal receives an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performs an uplink or downlink transmission corresponding to the cell group, the deactivation timer corresponding to the cell group is restarted.

14. The method of claim 13, further comprising: The signaling used by the network side to send the configuration information includes: RRC signaling.

15. A system for activating and deactivating a cell group, comprising: A terminal, an upper-level network node, and a first lower-level network node; The terminal is configured with a master node MN and one or more SNs; The terminal is configured to send a cell group activation request or a cell group deactivation request to the corresponding upper network node if it is determined that a trigger condition for requesting cell group activation or deactivation is met; Receiving a cell group activation indication or a cell group deactivation indication sent by the upper network node; The terminal is used to perform an activation or deactivation operation corresponding to the cell group activation indication or the cell group deactivation indication.

16. The method of claim 15, wherein: The terminal is not configured with the SCN, or the terminal is configured with one SCN, and the SCN is configured with one or more SNs.

17. The system of claim 15 or 16, wherein: The terminal is a first triggering node, and the system further comprises: a second triggering node and a second subordinate network node; The second trigger node is used to send the cell group activation node indication or the cell group deactivation node indication to the corresponding second subordinate network node if it is determined that the triggering condition for cell group activation or deactivation is met; wherein the second trigger node includes: the MN; The second subordinate network node is used to, if it is determined to accept the cell group activation node indication or the cell group deactivation node indication, then the second trigger node generates the cell group activation indication or the cell group deactivation indication according to the feedback information sent by the second subordinate network node and sends it to the terminal, or instructs the second subordinate network node to send the cell group activation indication or the cell group deactivation indication to the terminal.

18. The system of claim 15, wherein: The bearer message of the cell group activation indication or the cell group deactivation indication includes at least one of the following: an RRC message, a MAC CE message, and a DCI message; The information carried by the cell group activation indication includes at least one of the following: cell group ID, SCell Index information, and RACH resource information; The information carried by the cell group deactivation indication includes: a cell group ID.

19. The system of claim 18, wherein: The terminal is configured to receive the cell group activation indication, and activate the relevant SCell in the cell group corresponding to the cell group ID based on the RACH resource information and the SCellIndex information; Alternatively, the terminal activates all SCells in the corresponding cell group based on the RACH resource information and the cell group ID, or only activates the PSCell in the cell group; The cell group deactivation indication is received, and a deactivation operation is performed on the cell group corresponding to the cell group ID to deactivate all SCells in the cell group.

20. The system of claim 15, wherein: The upper network node is used to send a cell group activation node indication or a cell group deactivation node indication to the first lower network node; The first subordinate network node is configured to send an indication rejection feedback message if it is determined that the cell group activation node indication or the cell group deactivation node indication is not accepted; The second triggering node is used to send a cell group activation node indication or a cell group deactivation node indication to a second subordinate network node; The second subordinate network node is configured to send the indication rejection feedback message if it is determined that the cell group activation node indication or the cell group deactivation node indication is not accepted; The information carried in the rejection indication feedback message includes: rejection reason information.

21. The system of claim 20, wherein: The message carrying the cell group activation node indication or the cell group deactivation node indication includes: Xn message.

22. The system of claim 15, wherein: The terminal is used to use a first message to send the cell group activation request or the cell group deactivation request; wherein the first message includes: an RRC message or a MAC CE; the information carried by the cell group activation request or the cell group deactivation request includes at least one of the following: the cell group ID to be activated or deactivated, the corresponding activation or deactivation status, and SCell Index information.

23. The system of claim 22, wherein: The upper network node includes: the MN and the SCN; the first lower network node of the MN includes: the SCN and the SN; the first lower network node of the SCN includes: the SN; The upper-level network node is used to send a cell group activation node indication or a cell group deactivation node indication to the first lower-level network node if it is determined to accept the cell group activation request or the cell group deactivation request, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; wherein the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation state, and terminal ID information; The upper-level network node is also used to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal according to the confirmation result information generated by the SN; or, to instruct the corresponding first lower-level network node to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

24. The system of claim 23, wherein: The upper network node includes: the SN; The SN is used to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal if it is determined to accept the cell group activation request or the cell group deactivation request.

25. The system of claim 17, wherein the second triggering node is the MN; The MN is used to send the cell group activation node indication or the cell group deactivation node indication using an inter-node message; wherein, The inter-node message includes: Xn message; the information carried by the cell group activation node indication or the cell group deactivation node indication includes: the cell group ID to be activated or deactivated and the corresponding activation or deactivation status, and SCell Index information.

26. The system of claim 25, wherein the second lower-level network node comprises: The SCN, the SN; The MN is used to send the cell group activation node indication or the cell group deactivation node indication to the SCN or the SN, so that the SN receives the cell group activation node indication or the cell group deactivation node indication; The MN is used to generate the cell group activation indication or the cell group deactivation indication according to the confirmation result information generated by the SN and send it to the terminal; or, instruct the corresponding SCN or the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal, or, The SCN is used to instruct the SN to generate the cell group activation indication or the cell group deactivation indication and send it to the terminal.

27. The system of claim 15, wherein: The terminal is used to configure the deactivation timer duration for each cell group based on the configuration information sent by the network side and maintain it; activate the cell group according to the network side and start the corresponding deactivation timer; when the deactivation timer times out, the terminal deactivates the cell group corresponding to the deactivation timer; The terminal is used to restart the deactivation timer corresponding to the cell group when receiving an uplink or downlink scheduling indication corresponding to the SCell in the cell group, or performing an uplink or downlink transmission corresponding to the cell group.

28. The system of claim 27, wherein: The signaling used by the network side to send the configuration information includes: RRC signaling.

29. A computer-readable storage medium storing computer instructions, wherein the instructions are executed by a processor to execute the method according to any one of claims 1 to 14.

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