CN115190527A - Method, device, node and storage medium for realizing secondary cell group deactivation - Google Patents

Abstract

Embodiments of the present application provide a method, an apparatus, a first node, a second node, and a storage medium for deactivating a secondary cell group, and relate to the technical field of communications. Wherein, the method for realizing the deactivation of the secondary cell group is performed by the first node, and the method includes: when the deactivation of the secondary cell group SCG is triggered, determining the data transmission state of the second node; deactivating based on the determined data transmission state related processing. The embodiments of the present application solve the problem in the related art that data transmission may be interrupted during the deactivation of the secondary cell group.

Description

Method, device, node and storage medium for realizing secondary cell group deactivation

technical field

The present application relates to the field of communication technologies, and in particular, the present application relates to a method, an apparatus, a first node, a second node, and a storage medium for deactivating a secondary cell group.

Background technique

The related art introduces the SCG (Secondary Cell Group, secondary cell group) deactivated state (deactivated), wherein the SCG deactivated state is also equivalent to the SCG dormant state (dormant), SCG suspended state (suspend), PSCell suspended state (suspend) Active state, PSCell sleep state, or PSCell deactivated state, etc.

At present, both the MN (Master Node, primary node) and the SN (Secondary Node, secondary node) can request to deactivate the SCG, and the SCG deactivation command is sent by the MN to the UE (User Equipment, user equipment). During the SCG deactivation process, The interaction between the UE and the MN and between the MN and the SN is performed using RRC (Radio Resource Control, Radio Resource Control) signaling.

However, in the above-mentioned SCG deactivation process, if there is still data being transmitted on the SN side, the data transmission is often interrupted, which in turn causes part of the data to be lost, and ultimately leads to poor user perception.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method, device, first node, second node and storage medium for deactivating a secondary cell group, which can solve the problem that data transmission may be interrupted during the deactivation of the secondary cell group in the related art The problem. The technical solution is as follows:

According to an aspect of the embodiments of the present application, a method for implementing secondary cell group deactivation is performed by a first node, and the method includes: when the secondary cell group SCG deactivation is triggered, determining a data transmission state of the second node; Deactivation related processing is performed based on the determined data transmission state.

According to an aspect of the embodiments of the present application, a method for implementing secondary cell group deactivation is performed by a second node, the method includes: when the secondary cell group SCG deactivation is triggered, reporting the second node's SCG deactivation to the first node. Data transmission status; perform deactivation related processing based on the data transmission status.

According to an aspect of the embodiments of the present application, a first node includes: a memory, a transceiver, and a processor; wherein, the memory is used to store a computer program; the transceiver is used to store a computer program in the processor Send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the following steps: when the secondary cell group SCG deactivation is triggered, determine the data transmission state of the second node; based on the determined data The transmission status is deactivated related processing.

According to an aspect of the embodiments of the present application, a second node includes: a memory, a transceiver, and a processor; wherein, the memory is used to store a computer program; the transceiver is used to store a computer program in the processor Send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the following steps: when the secondary cell group SCG deactivation is triggered, report the data transmission state of the second node to the first node; Deactivation related processing is performed based on the data transmission state.

According to an aspect of the embodiments of the present application, an apparatus for implementing secondary cell group deactivation, which is applied to a first node, and the apparatus includes: a state determination module, configured to be triggered when the secondary cell group SCG deactivation is triggered , determine the data transmission state of the second node; the deactivation module is configured to perform deactivation related processing based on the determined data transmission state.

According to an aspect of the embodiments of the present application, an apparatus for deactivating a secondary cell group, which is applied to a second node, the apparatus includes: a status reporting module, configured to be triggered when the SCG deactivation of the secondary cell group is triggered , reporting the data transmission state of the second node to the first node; the deactivation module is configured to perform deactivation related processing based on the data transmission state.

According to an aspect of the embodiments of the present application, a storage medium stores a computer program thereon, and when the computer program is executed by a processor, implements the above-described method for deactivating a secondary cell group.

The beneficial effects brought by the technical solution provided by the application are:

In the above technical solution, when the SCG deactivation of the secondary cell group is triggered, the data transmission state of the second node is determined, so that the first node can perform deactivation related processing based on the data transmission state. It is determined that the first node can know whether the second node has data being transmitted, so as to better decide whether to deactivate the SCG, so as to avoid deactivation related processing when the data is being transmitted, so as to better solve the problem of existing in the related art. The problem that the data transmission may be interrupted during the deactivation of the secondary cell group.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments of the present application.

1 is a schematic diagram of a primary cell group and a secondary cell group in a multi-connection scenario involved in the present application;

FIG. 2 is a schematic diagram of an implementation environment involved in the present application;

FIG. 3 is a flowchart of a method for deactivating a secondary cell group according to an exemplary embodiment;

FIG. 4 is a flowchart illustrating a method for deactivating a secondary cell group according to an exemplary embodiment;

FIG. 5 to FIG. 7 are related flow charts illustrating the master node triggering SCG deactivation according to an exemplary embodiment;

8 to 11 are related flow charts illustrating SCG deactivation triggered by a secondary node according to an exemplary embodiment;

12 is a structural block diagram of an apparatus for deactivating a secondary cell group according to an exemplary embodiment;

13 is a structural block diagram of another apparatus for deactivating a secondary cell group according to an exemplary embodiment;

14 is a structural block diagram of a master node according to an exemplary embodiment;

FIG. 15 is a structural block diagram of a secondary node according to an exemplary embodiment;

Detailed ways

The following describes in detail the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals identify the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, but not to be construed as a limitation on the present application.

It will be understood by those skilled in the art that unless expressly stated otherwise, the singular forms "a", "an", "the" and "the" can also include the plural forms, and "a plurality" refers to two or two more than one, and other quantifiers are similar. It should be further understood that the word "comprising" used in the specification of this application refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not preclude the presence or addition of one or more other features, Integers, steps, operations, elements, components and/or groups thereof. It will be understood that when we refer to an element as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Furthermore, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The word "and/or" used here describes the relationship of the related objects, and means that there can be three kinds of relationships, for example, A and/or B, which can mean that A exists alone, A and B exist simultaneously, and B exists alone. a situation. The character "/" generally indicates that the associated objects are an "or" relationship.

The following is the introduction and explanation of several terms involved in this application:

MCG, spelled as Master Cell Group in English, means Master Cell Group in Chinese. The MCG includes a primary cell (PCell) and a secondary cell (SCell).

MN, the English spelling is Master Node, and the Chinese meaning is master node. It can also be understood that MN is a base station, and MCG is a cell group under the base station.

SCG, the English spelling is Secondary Cell Group, and the Chinese meaning is Secondary Cell Group. The SCG includes a primary secondary cell (PSCell) and a secondary cell SCell. It is explained here that the MCG and the SCG are formed in a multi-connectivity scenario, for example, the multi-connectivity scenario is a dual connectivity (DC, Dual connectivity) scenario, as shown in FIG. 1 .

SN, which is spelled as Secondary Node in English, and secondary node in Chinese, can also be understood as, SN is a base station, and SCG is a cell group under the base station.

UE, which is spelled User Equipment in English, and user equipment in Chinese, may also be called terminal equipment or terminal.

PDCP, English spelling is Packet Data Convergence Protocol, Chinese meaning is Packet Data Convergence Protocol. Among them, the PDCP layer is subordinate to the link layer L2.

RLC, the English spelling is Radio Link Control, and the Chinese meaning is Radio Link Control Layer Protocol. Among them, the RLC layer is subordinate to the link layer L2.

DRB, which is spelled Data Radio Bearer in English, and means Data Radio Bearer in Chinese, is mainly used to carry user plane data.

SRB, spelled Signaling Radio Bearer in English, means Signaling Radio Bearer in Chinese, and is mainly used to carry signaling plane data.

Bearer bearer, usually divided into SRB and DRB. For SRB or DRB, the network can configure different forms of bearers for the UE. According to the location of PDCP, it can be divided into MN-terminated bearer and SN-terminated bearer. According to the location of RLC and lower layers, it can be divided into MCG bearer and SCG bearer. The network can also configure a split bearer for the UE, that is, configure both the RLC bearer transmitted in the MN and the RLC bearer transmitted in the SN, the network can configure the designated primary path for the split bearer, and the network can configure the split bearer for the SRB or DRB.

SCG deactivated state, namely SCG deactivated. In the multi-connection scenario, considering energy saving and rapid activation of the SCG for data transmission, the UE can set the SCG side to the SCG deactivated state when the amount of data transmission is small, and the UE does not perform the SCG side in the SCG deactivated state. The monitoring of PDCCH, the transmission of PUSCH on the SCG side, and the transmission of data on the SCG side are not performed, but RRM measurement and reporting can still be performed.

RRM, the English spelling is Radio Resource Management, and the Chinese meaning is Radio Resource Management.

RRC, the English spelling is Radio Resource Control, and the Chinese meaning is Radio Resource Control.

As mentioned above, both MN and SN can request to deactivate the SCG, but when requesting to deactivate the SCG, since the MN and SN do not know each other's DRB status and whether there is data being transmitted, if the SN still has data being transmitted, It often results in interruption of data transmission, which in turn results in partial data loss, and ultimately leads to poor user perception.

Therefore, in the related art, how to negotiate the DRB state between the MN and the SN, how to decide whether to deactivate the SCG, and how to decide when to deactivate the SCG still need to be solved urgently.

In view of this, the method, device, first node, second node and storage medium for deactivating a secondary cell group provided by the present application aim to solve the above technical problems in the related art.

In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only Some embodiments of the present application are not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

FIG. 2 is a schematic diagram of an implementation environment involved in a method for implementing secondary cell group deactivation. The implementation environment includes a wireless communication system 100, which may be a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (Wideband) system Code Division Multiple Access (WCDMA) system, general packet radio service (GPRS) system, long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division Duplex (timedivision duplex, TDD) system, long term evolution advanced (long term evolution advanced, LTE-A) system, universal mobile telecommunication system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, WiMAX) ) system, may also be a 5G New Radio (New Radio, NR) system, etc., which is not limited here.

The wireless communication system 100 includes a user equipment 110 and a network device. The network device may include a base station 130, and may also include a core network part, such as an evolved packet system (Evloved Packet System, EPS).

Specifically, the user equipment 110, abbreviated as UE (User Equipment), is also considered to be a terminal or terminal equipment, and refers to an electronic device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or a device connected to Other processing devices, etc. of the wireless modem, for example, the user equipment 110 may be a mobile terminal device, such as a mobile phone (or "cellular" phone), or a computer with a mobile terminal device, such as a portable, pocket-sized, Handheld, computer built-in or vehicle mounted mobile devices. In different systems, the user equipment 110 may have different names, and may be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiated Protocol (SIP) phone, a wireless local loop (Wireless LocalLoop, WLL) station, personal digital assistant (Personal Digital Assistant, PDA) and other devices. The user equipment 110 may also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point ), a remote terminal, an access terminal, a user terminal, a user agent, and a user device, which are not limited here.

As an access network device, the base station 130 may be called an access point according to different application scenarios, or may be an electronic device in the access network that communicates with the user equipment 110 through one or more sectors on the air interface, or other name. The base station 130 can be used to exchange received air frames with Internet Protocol (IP) packets, and act as a router between the user equipment 110 and the rest of the access network, and the rest of the access network can include the Internet protocol network. The base station 130 may also coordinate attribute management for the air interface. For example, the base station 130 may be a base transceiver station (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or The base station (NodeB) in the Wide-band Code Division Multiple Access (Wide-band Code Division Multiple Access, WCDMA) may also be an evolved Node B (evolutional Node B, eNB or eNB) in the long term evolution (long term evolution, LTE) system. e-NodeB), 5G base station (gNB) in 5G network architecture (next generation system), also can be Home evolved Node B (HeNB), relay node (relay node), home base station (femto), A pico base station (pico) and the like are not limited here.

Referring back to FIG. 1 , in FIG. 1 , under the MCG, there may be many cells, one of which is the cell where the user equipment 110 first initiates random access (RA), which can also be understood as the cell is the cell where the base station 130 to which the user equipment 110 attaches for the first time is located, the cell is called the primary cell PCell, and correspondingly, other cells are regarded as the secondary cells SCell under the MCG. Under the MCG, the primary cell PCell and the secondary cell SCell are combined through the carrier aggregation (CA) technology.

It should be understood that the primary cell PCell is the most important cell in the MCG, and similarly, there will also be one most important cell under the SCG, that is, the primary and secondary cell PSCell, which can also be considered as the user equipment 110 under the SCG. The cell that initiates random access to the RA first, correspondingly, the remaining cells are regarded as the secondary cells SCell under the SCG. Under the SCG, the primary and secondary cells PSCell and the secondary cell SCell are also combined through the carrier aggregation CA technology.

In the above multi-connection scenario, the MN is the base station, the MCG is the cell group under the MN, the SN is also the base station, and the SCG is the cell group under the SN, and the MN can simultaneously perform data transmission with the user equipment 110 with one or more SNs .

Referring to FIG. 3 , an embodiment of the present application provides a method for deactivating a secondary cell group. The method is executed by a first node. For example, if the first node is an MN, it may be the MCG shown in FIG. 1 under the MN. The cell group, or the first node is the SN, or the cell group in which the SCG shown in FIG. 1 is the SN.

As shown in Figure 3, the method may include the following steps:

Step 21, when the secondary cell group deactivation is triggered, determine the data transmission status of the second node.

The data transmission status is used to indicate whether the second node has data being transmitted.

As mentioned above, both the MN and the SN can request to deactivate the SCG, that is, the SCG deactivation can be triggered by the first node or by the second node.

Based on this, in a possible implementation manner, when the first node triggers the deactivation of the SCG, the first node requests the second node to report the data transmission status of the second node.

Specifically, the first message is sent to the second node, so that the second node sends the second message in response to the first message; the second message is received, and the data transmission state of the second node is determined according to the second message.

The first message includes at least one of the following: first request information requesting deactivation of the secondary cell group; second request information requesting the second node to report the data transmission status; requesting the second node to report the threshold value of the first timer timer1 The third request information.

In a possible implementation manner, when the second node triggers the deactivation of the SCG, the second node actively reports the data transmission status of the second node.

Specifically, the second message sent by the second node is received, and the data transmission state of the second node is determined according to the second message.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The second node has the first DRB identification information for data transmission; the second DRB identification information indicating that the second node does not have data transmission; the first indication information indicating whether the second node has data being transmitted; cache data information; Activated second indication information.

The above DRBs include but are not limited to: DRBs with the PDCP layer at the second node, and/or DRBs at the RLC layer at the second node, and/or DRBs at the PDCP layer and RLC layers at the second node. In a possible implementation manner, the DRB identifier may be represented in a bitmap manner. In a possible implementation manner, the indication information may be represented by 0/1, for example, 0 indicates that the second node has no data being transmitted, and 1 indicates that the second node has data being transmitted.

As can be seen from the above, as far as the first node is concerned, when the primary cell triggers the deactivation of the secondary cell group, it will request the second node to report the data transmission status of the second node, so that the first node can know whether the second node has data being transmitted. .

Step 22: Perform deactivation related processing based on the determined data transmission state.

After the data transmission state of the second node is determined, it can be further determined whether the second node has data being transmitted according to the indication of the data transmission state. Based on whether the second node has data being transmitted, deactivation related processing is performed by the first node.

In a possible implementation manner, performing deactivation related processing includes at least one of the following: executing a procedure for deactivating a secondary cell group; sending a deactivation configuration message to the second node; starting a first timer timer1; starting a second timer timer2 ;Start the third timer timer3.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the second node to reconfigure the bearer; first confirmation information used to notify the second node that the first node confirms the threshold value of the first timer timer1 ; The second timer timer2 threshold value provided by the first node, or the third timer timer3 threshold value determined through negotiation between the first node and the second node; used to instruct to send the secondary cell group deactivation command to the user equipment The first node information of the node. It is explained here that, in a possible implementation manner, the first node sends the signaling of the second timer timer2 to the second node, which is the same as the signaling of the third timer timer3 sent by the first node to the second node. .

For example, the first node information is used to instruct the first node to send the secondary cell group deactivation command to the user equipment, or it is used to instruct the second node to send the secondary cell group deactivation command to the user equipment.

In a possible implementation manner, when the first node sends the deactivation configuration message to the second node, the first node receives the deactivation configuration confirmation message sent by the second node in response to the deactivation configuration message.

The deactivation configuration confirmation message includes at least one of the following: second confirmation information for notifying the first node of the second node's confirmation of the deactivation configuration; a fourth timer timer4 threshold determined by negotiation between the first node and the second node Value; second node information used to indicate the node that sends the secondary cell group deactivation command to the user equipment.

For example, the second node information is used to instruct the first node to send the secondary cell group deactivation command to the user equipment, or, used to instruct the second node to send the secondary cell group deactivation command to the user equipment.

Correspondingly, in a possible implementation manner, performing the deactivation-related processing further includes at least one of the following: starting a fourth timer.

As mentioned above, the related art still needs to solve the problem of how the MN and the SN decide when to deactivate the SCG. Based on this, the process of deactivating the secondary cell group may include the following steps: when the first timer timer1 times out, deactivate the secondary cell group. Cell group flow; or when the second timer timer2 times out, execute the deactivation secondary cell group procedure; or when the third timer timer3 times out, execute the deactivation secondary cell group procedure; or when the fourth timer timer4 times out, execute the deactivation of the secondary cell group process.

In a possible implementation manner, performing the procedure of deactivating the secondary cell group may further include the following step: sending a secondary cell group deactivation command to the user equipment.

Through the above process, through the determination of the data transmission state, the first node can know whether the second node has data being transmitted, so as to avoid deactivation related processing when the data is being transmitted, thereby effectively solving the problems existing in the related art. The problem that the data transmission may be interrupted during the deactivation of the secondary cell group.

Referring to FIG. 4 , an embodiment of the present application provides a method for deactivating a secondary cell group. The method is executed by a second node. For example, the second node is an MN, which may be the MCG shown in FIG. 1 under the MN. The cell group, or the second node is the SN, or the cell group in which the SCG shown in FIG. 1 is the SN.

As shown in Figure 4, the method may include the following steps:

Step 31: When the secondary cell group deactivation is triggered, the data transmission status of the second node is reported to the first node.

The data transmission status is used to indicate whether the second node has data being transmitted.

As mentioned above, both the MN and the SN can request to deactivate the SCG, that is, the SCG deactivation can be triggered by the first node or by the second node.

Based on this, in a possible implementation manner, when the first node triggers the deactivation of the SCG, the first node requests the second node to report the data transmission status of the second node.

Specifically, a first message sent by the first node is received; in response to the first message, a second message is sent to the first node, so that the first node determines the data transmission state of the second node according to the second message.

The first message includes at least one of the following: first request information requesting deactivation of the secondary cell group; second request information requesting the second node to report the data transmission status; requesting the second node to report the threshold value of the first timer timer1 The third request information.

In a possible implementation manner, when the second node triggers the deactivation of the SCG, the second node actively reports the data transmission status of the second node.

Specifically, the second message is sent to the first node, so that the first node determines the data transmission state of the second node according to the second message.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The second node has the first DRB identification information for data transmission; the second DRB identification information indicating that the second node does not have data transmission; the first indication information indicating whether the second node has data being transmitted; cache data information; Activated second indication information.

The above DRBs include but are not limited to: DRBs with the PDCP layer at the second node, and/or DRBs at the RLC layer at the second node, and/or DRBs at the PDCP layer and RLC layers at the second node. In a possible implementation manner, the DRB identifier may be represented in a bitmap manner. In a possible implementation manner, the indication information may be represented by 0/1, for example, 0 indicates that the second node has no data being transmitted, and 1 indicates that the second node has data being transmitted.

As can be seen from the above, as far as the second node is concerned, when the secondary cell group deactivation is triggered, it will report the data transmission status of the second node to the first node, so that the first node can know whether the second node has data being transmitted. .

Step 32, perform deactivation related processing based on the data transmission state.

In a possible implementation manner, performing deactivation-related processing includes at least one of the following: performing a bearer reconfiguration procedure to ensure that there is no DRB transmitting data in the deactivated SCG; and performing a deactivating secondary cell group procedure.

As mentioned above, for the first node, performing the deactivation related processing may include the following steps: sending a deactivation configuration message to the second node. Correspondingly, in a possible implementation manner, for the second node, Before performing the deactivation related processing, the method may further include the following step: receiving a deactivation configuration message sent by the first node based on the data transmission state.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the second node to reconfigure the bearer; first acknowledgment information for notifying the second node that the first node confirms the first timer threshold; The second timer timer2 threshold value provided by the first node, or the third timer timer3 threshold value determined through negotiation between the first node and the second node; used to instruct the node that sends the secondary cell group deactivation command to the user equipment information of the first node. It is explained here that, in a possible implementation manner, the first node sends the signaling of the second timer timer2 to the second node, which is the same as the signaling of the third timer timer3 sent by the first node to the second node. .

For example, the first node information is used to instruct the first node to send the secondary cell group deactivation command to the user equipment, or it is used to instruct the second node to send the secondary cell group deactivation command to the user equipment.

Based on this, in a possible implementation manner, performing deactivation related processing may further include the following steps: sending a deactivation configuration confirmation message to the first node; starting a first timer timer1; starting a second timer timer2; starting a third timer timer timer3.

The deactivation configuration confirmation message includes at least one of the following: second confirmation information used to notify the first node of the second node's confirmation of the deactivation configuration; a fourth timer timer4 threshold determined by negotiation between the first node and the second node Value; second node information used to indicate the node that sends the secondary cell group deactivation command to the user equipment.

For example, the second node information is used to instruct the first node to send the secondary cell group deactivation command to the user equipment, or, used to instruct the second node to send the secondary cell group deactivation command to the user equipment.

Correspondingly, in a possible implementation manner, performing the deactivation-related processing further includes at least one of the following: starting a fourth timer.

As mentioned above, the related art still needs to solve the problem of how the MN and the SN decide when to deactivate the SCG. Based on this, the process of deactivating the secondary cell group may include the following steps: when the first timer timer1 times out, deactivate the secondary cell group. Cell group flow; or when the second timer timer2 times out, execute the deactivation secondary cell group procedure; or when the third timer timer3 times out, execute the deactivation secondary cell group procedure; or when the fourth timer timer4 times out, execute the deactivation of the secondary cell group process.

In a possible implementation manner, performing the procedure of deactivating the secondary cell group may further include the following step: sending a secondary cell group deactivation command to the user equipment.

In the above process, the second node reports the data transmission status, so that the first node can know whether the second node has data being transmitted, and then negotiate with the MN whether to deactivate the SCG, so as to avoid deactivation when the data is being transmitted. The related processing is activated, thereby effectively solving the problem in the related art that the data transmission may be interrupted during the deactivation process of the secondary cell group.

As mentioned above, in the above-mentioned secondary cell deactivation process, either the secondary node notifies the master node of the data transmission status of the secondary node, so that the primary node can perform deactivation related processing based on the data transmission status; The secondary node notifies the primary node of the data transmission status, so that the secondary node performs deactivation related processing based on the data transmission status.

In view of this, for the convenience of description, the following describes the secondary cell deactivation process in detail by taking the data transmission state based on the secondary node as an example, but this does not constitute a specific limitation.

Referring to FIG. 5 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 5, the method may include the following steps:

Step 41, when the master node triggers the deactivation of the SCG, the master node sends a first message to the secondary node.

The first message includes at least one of the following: first request information for requesting the deactivation of the secondary cell group; second request information for requesting the secondary node to report the data transmission status; 3. Request information.

Step 42, the secondary node sends a second message to the primary node.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; buffer data information; 2. Instruction information.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following three scenarios describe the process of the primary node triggering the deactivation of the secondary cell group:

In the first case, as shown in FIG. 5( a ), in step 430 , if the secondary node has no data being transmitted, the secondary node executes the process of deactivating the secondary cell group.

Specifically, in the first manner, the master node receives the second message, determines the threshold value of the first timer timer1 provided by the secondary node, and starts the first timer timer1 based on the threshold value of the first timer timer1 provided by the secondary node. , when the first timer timer1 times out, the process of deactivating the secondary cell group is performed.

Optionally, in the above manner, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

In the second case, as shown in FIG. 5(b), in step 431, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 441 is performed.

On the contrary, if the secondary node has data being transmitted, step 451 is executed.

Step 441, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the second message, determines the first timer timer1 provided by the secondary node, and starts the first timer timer1 based on the threshold value of the first timer timer1 provided by the secondary node. When timer1 times out, the process of deactivating the secondary cell group is performed.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: first acknowledgment information used to notify the secondary node of the master node confirming the threshold value of the first timer timer1; used to instruct the node that sends the secondary cell group deactivation command to the user equipment information of the first node.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 451: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; first acknowledgment information used to notify the secondary node of the primary node confirming the threshold value of the first timer timer1; The secondary cell group deactivation command is sent to the first node information of the node of the user equipment.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 461: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 471, the secondary node receives the deactivation configuration message, and based on the first confirmation information in the deactivation configuration message, the secondary node starts a first timer timer1, and when the first timer timer1 times out, executes the process of deactivating the secondary cell group.

In step 471, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the third case, as shown in FIG. 5( c ), in step 432 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 442: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; first confirmation information for notifying the secondary node that the primary node confirms the threshold value of the first timer timer1.

Step 452: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 462, in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node.

Wherein, the deactivation configuration confirmation message includes at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration; a second node for instructing the node that sends the secondary cell group deactivation command to the user equipment information.

Here, the second node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 472, the master node executes the process of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the deactivation configuration confirmation message, and if the deactivation configuration confirmation message contains the second node information, the first timer timer1 is started based on the threshold value of the first timer timer1 provided by the secondary node. When the first timer timer1 times out, the procedure of deactivating the secondary cell group is performed.

Optionally, in the above two manners, based on the second node information, the following step may be further performed: sending a secondary cell group deactivation command to the user equipment.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the first timer timer1 provided by the secondary node, the negotiation of the DRB state between the MN and the SN and when to deactivate the SCG are implemented, effectively solving the related art. There is a problem that data transmission may be interrupted during the deactivation of the secondary cell group.

Referring to FIG. 6 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 6, the method may include the following steps:

Step 51, when the master node triggers the deactivation of the SCG, the master node sends a first message to the secondary node.

The first message includes at least one of the following: first request information for requesting the deactivation of the secondary cell group; second request information for requesting the secondary node to report the data transmission status; 3. Request information.

Step 52, the secondary node sends a second message to the primary node.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of triggering the deactivation of the secondary cell group by the master node in two cases:

In the first case, as shown in Fig. 6(a), in step 531, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 541 is performed.

On the contrary, if the secondary node has data being transmitted, step 551 is performed.

Step 541, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second way, the master node receives the second message, negotiates with the master node to determine the threshold value of the third timer timer3 according to the threshold value of the first timer timer1 provided by the slave node, and determines the third timer timer3 threshold value based on the negotiation between the master node and the slave node. Three timers timer3 threshold value, start the third timer timer3, when the third timer timer3 times out, execute the process of deactivating the secondary cell group.

The threshold value of the third timer timer3 is related to the threshold value of the first timer timer1. For example, the threshold value of the first timer timer1 represents the upper limit of the time allowed to send data, then the threshold value of the third timer timer3 is greater than or equal to the threshold value of the first timer timer1, or the threshold value of the first timer timer1 represents the allowable time limit The lower limit of the time for sending data, the threshold value of the third timer timer3 is less than or equal to the threshold value of the first timer timer1.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: a third timer timer3 threshold value determined through negotiation between the master node and the secondary node; and first node information used to instruct the node that sends the secondary cell group deactivation command to the user equipment.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 551: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information that instructs the secondary node to reconfigure the bearer; a third timer timer3 threshold value determined through negotiation between the primary node and the secondary node; and is used to instruct to send a secondary cell group deactivation command The first node information to the user equipment.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 561: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 571, the secondary node receives the deactivation configuration message, determines the threshold value of the third timer timer3, and based on the threshold value of the third timer timer3 determined through negotiation between the primary node and the secondary node, the secondary node starts the third timer timer3. The third timer timer3 times out to execute the procedure of deactivating the secondary cell group.

In step 571, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the second case, as shown in FIG. 6(b), in step 532, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 542, sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information that instructs the secondary node to reconfigure the bearer; a third timer timer3 threshold value determined through negotiation between the primary node and the secondary node; and is used to instruct to send a secondary cell group deactivation command The first node information to the user equipment.

It is explained here that the threshold value of the third timer timer3 is related to the threshold value of the first timer timer1. For example, the threshold value of the first timer timer1 represents the upper limit of the time allowed to send data, then the threshold value of the third timer timer3 is greater than or equal to the threshold value of the first timer timer1, or the threshold value of the first timer timer1 represents the allowable time limit The lower limit of the time for sending data, the threshold value of the third timer timer3 is less than or equal to the threshold value of the first timer timer1.

And, the first node information indicates that the secondary node sends a secondary cell group deactivation command to the user equipment.

Step 552: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 562, the secondary node receives the deactivation configuration message, determines the third timer timer3, and based on the third timer timer3 threshold value negotiated between the primary node and the secondary node, the secondary node starts the third timer timer3, when the third timer The timer timer3 times out and executes the procedure of deactivating the secondary cell group.

In step 562, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the third timer timer3 negotiated between the primary node and the secondary node, the DRB state negotiated between the MN and the SN and when to deactivate the SCG are realized, effectively The problem in the related art that the data transmission may be interrupted during the deactivation of the secondary cell group is solved.

Referring to FIG. 7 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 7, the method may include the following steps:

Step 61, when the master node triggers the deactivation of the SCG, the master node sends a first message to the secondary node.

Wherein, the first message includes at least one of the following: first request information requesting deactivation of the secondary cell group; second request information requesting the secondary node to report the data transmission status.

Step 62, the secondary node sends a second message to the primary node.

Wherein, the second message includes at least one of the following: data transmission information representing the data transmission state.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of triggering the deactivation of the secondary cell group by the master node in two cases:

In the first case, as shown in FIG. 7( a ), in step 631 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 61 is performed.

On the contrary, if the secondary node has data being transmitted, step 651 is performed.

Step 641, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the second timer timer2 is started based on the threshold value of the second timer timer2 provided by the master node, and the process of deactivating the secondary cell group is performed when the second timer timer2 times out.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: a second timer timer2 threshold value provided by the master node; and first node information used to indicate a node that sends a secondary cell group deactivation command to the user equipment.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 651: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; a second timer timer2 threshold value provided by the primary node; First node information.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 661: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 671, the secondary node receives the deactivation configuration message, determines the second timer timer2 threshold value provided by the primary node, and based on the second timer timer2 threshold value provided by the primary node, the secondary node starts the second timer timer2, when The second timer timer2 times out to execute the procedure of deactivating the secondary cell group.

In step 671, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the second case, as shown in FIG. 7(b), in step 632, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 642: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; a second timer timer2 threshold value provided by the primary node; First node information.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 652: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 662, the secondary node receives the deactivation configuration message, determines the threshold value of the second timer timer2 provided by the primary node, and starts the second timer timer2 based on the threshold value of the second timer timer2 provided by the primary node. The second timer timer2 times out to execute the procedure of deactivating the secondary cell group.

In step 662, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the second timer timer2 provided by the master node, the negotiation of the DRB state between the MN and the SN and when to deactivate the SCG are realized, effectively solving the related art. There is a problem that data transmission may be interrupted during the deactivation of the secondary cell group.

Referring to FIG. 8 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 8, the method may include the following steps:

Step 71, when the secondary node triggers the deactivation of the SCG, send a second message to the primary node.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of the secondary node triggering the deactivation of the secondary cell group in three cases:

In the first case, as shown in FIG. 8( a ), in step 72 , if the secondary node has no data being transmitted, the secondary node executes the process of deactivating the secondary cell group.

Specifically, in the first manner, the master node receives the second message, determines the threshold value of the first timer timer1 provided by the secondary node, and starts the first timer timer1 based on the threshold value of the first timer timer1 provided by the secondary node. , when the first timer timer1 times out, the process of deactivating the secondary cell group is performed.

Optionally, in the above manner, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

In the second case, as shown in FIG. 8(b), in step 821, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 831 is performed.

On the contrary, if the secondary node has data being transmitted, step 841 is performed.

Step 831, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the second message, determines the threshold value of the first timer timer1 provided by the secondary node, and starts the first timer timer1 based on the threshold value of the first timer timer1 provided by the secondary node. A timer timer1 times out to perform the procedure of deactivating the secondary cell group.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: first acknowledgment information used to notify the secondary node of the master node confirming the threshold value of the first timer timer1; used to instruct the node that sends the secondary cell group deactivation command to the user equipment information of the first node.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 841, the master node sends a deactivation configuration message to the slave node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; first acknowledgment information used to notify the secondary node of the primary node confirming the threshold value of the first timer timer1; The secondary cell group deactivation command is sent to the first node information of the user equipment.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 851: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 861, the secondary node receives the deactivation configuration message, and based on the first confirmation information in the deactivation configuration message, the secondary node starts a first timer timer1, and when the first timer timer1 times out, executes the process of deactivating the secondary cell group.

In step 861, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the third case, as shown in FIG. 8( c ), in step 822 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 832, the master node sends a deactivation configuration message to the slave node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; first confirmation information for notifying the secondary node that the primary node confirms the threshold value of the first timer timer1.

Step 842: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 852, in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node.

Wherein, the deactivation configuration confirmation message includes at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration; a second node for instructing the node that sends the secondary cell group deactivation command to the user equipment information.

Here, the second node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 862, the master node executes the process of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the deactivation configuration confirmation message, and if the deactivation configuration confirmation message contains the second node information, the first timer timer1 is started based on the threshold value of the first timer timer1 provided by the secondary node. A timer timer1 times out to perform the procedure of deactivating the secondary cell group.

Optionally, in the above two manners, based on the second node information, the following step may be further performed: sending a secondary cell group deactivation command to the user equipment.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the first timer timer1 provided by the secondary node, the negotiation of the DRB state between the MN and the SN and when to deactivate the SCG are implemented, effectively solving the related art. There is a problem that data transmission may be interrupted during the deactivation of the secondary cell group.

Referring to FIG. 9 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 9, the method may include the following steps:

Step 91, when the secondary node triggers the deactivation of the SCG, send a second message to the primary node.

Wherein, the second message includes at least one of the following items: data transmission information representing the data transmission state; and a threshold value of the first timer timer1.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of the secondary node triggering the deactivation of the secondary cell group in two cases:

In the first case, as shown in FIG. 9( a ), in step 921 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 931 is performed.

On the contrary, if the secondary node has data being transmitted, step 941 is performed.

Step 931, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the second message, negotiates with the master node to determine the third timer timer3 threshold value according to the first timer timer1 threshold value in the second message, and determines the third timer timer3 threshold value based on the negotiation between the master node and the secondary node. The third timer timer3 threshold value, start the third timer timer3, when the third timer timer3 times out, execute the process of deactivating the secondary cell group.

The threshold value of the third timer timer3 is related to the threshold value of the first timer timer1. For example, the threshold value of the first timer timer1 represents the upper limit of the time allowed to send data, then the threshold value of the third timer timer3 is greater than or equal to the threshold value of the first timer timer1, or the threshold value of the first timer timer1 represents the allowable time limit The lower limit of the time for sending data, the threshold value of the third timer timer3 is less than or equal to the threshold value of the first timer timer1.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: a third timer timer3 threshold value determined through negotiation between the master node and the secondary node; and first node information used to instruct the node that sends the secondary cell group deactivation command to the user equipment.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 941, sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information that instructs the secondary node to reconfigure the bearer; a third timer timer3 threshold value determined through negotiation between the primary node and the secondary node; and is used to instruct to send a secondary cell group deactivation command The first node information to the user equipment.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 951: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 961, the secondary node receives the deactivation configuration message, determines the threshold value of the third timer timer3, and based on the threshold value of the third timer timer3 determined through negotiation between the primary node and the secondary node, the secondary node starts the third timer timer3. The third timer timer3 times out to execute the procedure of deactivating the secondary cell group.

In step 961, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the second case, as shown in FIG. 9(b), in step 922, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 932, sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information that instructs the secondary node to reconfigure the bearer; a third timer timer3 threshold value determined through negotiation between the primary node and the secondary node; and is used to instruct to send a secondary cell group deactivation command The first node information to the user equipment.

It is explained here that the threshold value of the third timer timer3 is related to the threshold value of the first timer timer1. For example, the threshold value of the first timer timer1 represents the upper limit of the time allowed to send data, then the threshold value of the third timer timer3 is greater than or equal to the threshold value of the first timer timer1, or the threshold value of the first timer timer1 represents the allowable time limit The lower limit of the time for sending data, the threshold value of the third timer timer3 is less than or equal to the threshold value of the first timer timer1.

And, the first node information indicates that the secondary node sends a secondary cell group deactivation command to the user equipment.

Step 942: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 952, the secondary node receives the deactivation configuration message, determines the threshold value of the third timer timer3, and based on the threshold value of the third timer timer3 determined through negotiation between the primary node and the secondary node, the secondary node starts the third timer timer3. The third timer timer3 times out to execute the procedure of deactivating the secondary cell group.

In step 952, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the third timer timer3 negotiated between the primary node and the secondary node, the DRB state negotiated between the MN and the SN and when to deactivate the SCG are realized, effectively The problem in the related art that the data transmission may be interrupted during the deactivation of the secondary cell group is solved.

Referring to FIG. 10 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 10, the method may include the following steps:

Step 101, when the secondary node triggers the deactivation of the SCG, send a second message to the primary node.

Wherein, the second message includes at least one of the following: data transmission information representing the data transmission state.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of the secondary node triggering the deactivation of the secondary cell group in two cases:

In the first case, as shown in FIG. 10( a ), in step 102 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

If the secondary node has no data being transmitted, step 103 is performed.

On the contrary, if the secondary node has data being transmitted, step 104 is performed.

Step 103, if the secondary node has no data being transmitted, execute the procedure of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the second timer timer2 is started based on the threshold value of the second timer timer2 provided by the master node, and the process of deactivating the secondary cell group is performed when the second timer timer2 times out.

Optionally, in the above two manners, the following steps may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: sending a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: a second timer timer2 threshold value provided by the master node; and first node information used to indicate a node that sends a secondary cell group deactivation command to the user equipment.

Here, the first node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 104: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; a second timer timer2 threshold value provided by the primary node; First node information.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 105: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 106, the secondary node receives the deactivation configuration message, determines the threshold value of the second timer timer2, and based on the threshold value of the second timer timer2 provided by the primary node, the secondary node starts the second timer timer2. When timer2 times out, the process of deactivating the secondary cell group is performed.

In step 106, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the second case, as shown in FIG. 10(b), in step 112, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 113: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; a second timer timer2 threshold value provided by the primary node; First node information.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 114: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 115, the secondary node receives the deactivation configuration message, determines the threshold value of the second timer timer2, and based on the threshold value of the second timer timer2 provided by the primary node, the secondary node starts the second timer timer2. When timer2 times out, the process of deactivating the secondary cell group is performed.

In step 115, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

Under the action of the above embodiment, combined with the data transmission state of the secondary node and the second timer timer2 provided by the master node, the negotiation of the DRB state between the MN and the SN and when to deactivate the SCG are realized, effectively solving the related art. There is a problem that data transmission may be interrupted during the deactivation of the secondary cell group.

Referring to FIG. 11 , an embodiment of the present application provides a method for deactivating a secondary cell group, which is applicable to the multi-connection scenario shown in FIG. 1 . In this multi-connection scenario, the MCG is a cell group under the MN, and the SCG is a cell group under the SN.

In Figure 11, the method may include the following steps:

Step 121, when the secondary node triggers the deactivation of the SCG, send a second message to the primary node.

Wherein, the second message includes at least one of the following: data transmission information representing the data transmission state.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer (the DRB information at least includes: a DRB identifier and third indication information indicating whether there is data transmission in the DRB); indicating The secondary node has the first DRB identification information for data transmission; the second DRB identification information indicating that the secondary node does not have data transmission; the first indication information indicating whether the secondary node has data being transmitted; the secondary node has no buffered data information; Second indication information indicating whether to deactivate.

The above-mentioned DRBs include but are not limited to: DRBs of the PDCP layer at the secondary node, and/or DRBs of the RLC layer at the secondary node, and/or DRBs of the PDCP layer and the RLC layer at the secondary node.

The following describes the process of the secondary node triggering the deactivation of the secondary cell group in two cases:

In the first case, as shown in FIG. 11( a ), in step 122 , the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 123: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following: bearer configuration information instructing the secondary node to reconfigure the bearer; a second timer timer2 threshold value provided by the primary node; First node information.

Here, the first node information indicates that the secondary cell group deactivation command is sent by the secondary node to the user equipment.

Step 124: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 125, in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node.

Wherein, the deactivation configuration confirmation message includes at least one of the following: the second confirmation information used to notify the master node of the secondary node's confirmation of the deactivation configuration; Yes, the fourth timer timer4 timeout threshold is related to the second timer timer2 timeout threshold. For example, the timeout threshold of the second timer timer2 represents the upper limit of the time allowed to send data, then the timeout threshold of the fourth timer timer4 is greater than or equal to the timeout threshold of the second timer timer2, or the timeout threshold of the second timer timer2 represents the time allowed to send data the lower limit, the timeout threshold of the fourth timer timer4 is less than or equal to the timeout threshold of the second timer timer2.

Step 126 , based on the threshold value of the fourth timer timer4 determined through negotiation between the master node and the slave node, the slave node starts the fourth timer timer4, and when the fourth timer timer4 times out, executes the process of deactivating the secondary cell group.

In step 126, if the deactivation configuration message includes the first node information, the following step may also be performed: sending a secondary cell group deactivation command to the user equipment.

Optionally, the following steps may also be performed: in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node to notify the master node that the secondary node is responsible for sending the secondary cell group deactivation command to the second node information of the user equipment .

Certainly, the deactivation configuration confirmation message may further include at least one of the following: second confirmation information for notifying the primary node of the secondary node's confirmation of the deactivation configuration.

In the second case, as shown in FIG. 11(b), in step 132, the master node determines the data transmission state of the slave node according to the second message.

The data transmission status is used to indicate whether the secondary node has data being transmitted.

Step 133: Send a deactivation configuration message to the secondary node.

The deactivation configuration message includes at least one of the following items: bearer configuration information instructing the secondary node to reconfigure the bearer; and a second timer timer2 threshold value provided by the primary node.

Step 134: Based on the bearer configuration information, the secondary node performs a bearer reconfiguration process, so as to ensure that the secondary node has no data being transmitted during the deactivation of the secondary cell group.

Step 135, in response to the deactivation configuration message, send a deactivation configuration confirmation message to the master node.

Wherein, the deactivation configuration confirmation message includes at least one of the following: the second confirmation information used to notify the master node of the secondary node's confirmation of the deactivation configuration; the fourth timer timer4 threshold value determined through negotiation between the primary node and the secondary node; Indicates second node information for sending a secondary cell group deactivation command to the user equipment.

It is explained here that the threshold value of the fourth timer timer4 is related to the threshold value of the second timer timer2. For example, the threshold value of the second timer timer2 represents the upper limit of the time allowed to send data, then the threshold value of the fourth timer timer4 is greater than or equal to the threshold value of the second timer timer2, or the threshold value of the second timer timer2 represents the allowable time limit The lower time limit for sending data, the threshold value of the fourth timer timer4 is less than or equal to the threshold value of the second timer timer2.

And, the second node information indicates that the master node sends the secondary cell group deactivation command to the user equipment.

Step 136, the master node executes the process of deactivating the secondary cell group.

Specifically, in the first manner, the procedure of deactivating the secondary cell group is directly executed.

In the second manner, the master node receives the deactivation configuration confirmation message, determines the threshold value of the fourth timer timer4, and starts the fourth timer based on the threshold value of the fourth timer timer4 determined through negotiation between the master node and the secondary node. timer4, when the fourth timer timer4 times out, the process of deactivating the secondary cell group is performed.

Optionally, in the above two manners, based on the second node information, the following step may be further performed: sending a secondary cell group deactivation command to the user equipment.

Under the action of the above embodiment, combined with the data transmission status of the secondary node and the fourth timer timer4 negotiated between the primary node and the secondary node, the negotiation of the DRB status between the MN and the SN and when to deactivate the SCG are realized, effectively The problem in the related art that the data transmission may be interrupted during the deactivation of the secondary cell group is solved.

The following is an embodiment of the apparatus of the present application, which can be used to execute the method for deactivating the secondary cell group involved in the present application. For details not disclosed in the device embodiments of the present application, please refer to the embodiments of the method for deactivating the secondary cell group involved in the present application.

Referring to FIG. 12 , an embodiment of the present application provides an apparatus 900 for deactivating a secondary cell group, which is applied to a master node.

The apparatus 900 for deactivating the secondary cell group includes but is not limited to: a state determination module 901 and a deactivation module 902 .

The state determination module 901 is configured to determine the data transmission state of the secondary node when the secondary cell group deactivation is triggered.

The deactivation module 902 is configured to perform deactivation related processing based on the determined data transmission state.

In a possible implementation manner, the state determination module 901 is configured to perform the following steps: when the first node triggers SCG deactivation, send a first message to the second node; receive the first message sent by the second node in response to the first message. two messages, and the data transmission state of the second node is determined according to the second message.

In a possible implementation manner, the first message includes at least one of the following: first request information requesting SCG deactivation; second request information requesting the second node to report the data transmission status; requesting the second node to report the first timing The third request information of the threshold value of the controller.

In a possible implementation manner, the state determination module 901 is configured to perform the following steps: when the second node triggers SCG deactivation, receive a second message sent by the second node; determine the data transmission of the second node according to the second message state.

In a possible implementation manner, the second message includes at least one of the following: data transmission information representing the data transmission state; and a first timer threshold value.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer; first DRB identification information indicating that the second node has data transmission; indicating that the second node does not have data transmission second DRB identification information; first indication information indicating whether the second node has data being transmitted; buffering data information; and second indication information indicating whether to deactivate.

In a possible implementation manner, the DRB information at least includes: a DRB identifier, and third indication information indicating whether there is data transmission in the DRB.

In a possible implementation manner, the deactivation module 902 is configured to perform the following steps: execute the deactivation SCG procedure; send the deactivation configuration message to the second node; start the first timer; start the second timer; start the third timer .

In a possible implementation manner, the deactivation configuration message includes at least one of the following: bearer configuration information instructing the second node to reconfigure the bearer; The first confirmation information; the second timer threshold value provided by the first node; the third timer threshold value determined through negotiation between the first node and the second node; used to indicate the node sending the SCG deactivation command to the user equipment; First node information.

In a possible implementation manner, the apparatus further includes other functional modules for performing the following steps: receiving a deactivation configuration confirmation message sent by the second node in response to the deactivation configuration message.

In a possible implementation manner, the deactivation configuration confirmation message includes at least one of the following: second confirmation information for notifying the first node of the second node's confirmation of the deactivation configuration; The fourth timer threshold value; the second node information used to indicate the node that sends the SCG deactivation command to the user equipment.

In a possible implementation, the deactivation module 902 is configured to perform the following steps: start a fourth timer.

In a possible implementation manner, the apparatus further includes other functional modules for executing the following steps: when the first timer times out, the deactivation SCG procedure is executed; or when the second timer times out, the deactivation SCG procedure is executed; or when the third timer times out, the deactivation SCG procedure is executed; When the timer expires, the SCG deactivation procedure is executed; or when the fourth timer expires, the deactivation SCG procedure is executed.

In a possible implementation manner, the apparatus further includes other functional modules for performing the following steps: sending an SCG deactivation command to the user equipment.

Referring to FIG. 13 , an embodiment of the present application provides an apparatus 1000 for deactivating a secondary cell group, which is applied to a secondary node.

The apparatus 1000 for deactivating the secondary cell group includes but is not limited to: a status reporting module 1001 and a deactivation module 1002 .

The status reporting module 1001 is configured to report the data transmission status of the secondary node to the master node when the secondary cell group is triggered to be deactivated.

The deactivation module 1002 is configured to perform deactivation related processing based on the data transmission state.

In a possible implementation manner, the status reporting module 1001 is configured to perform the following steps: when the second node triggers SCG deactivation, send a second message to the first node to report the data transmission status of the second node.

In a possible implementation manner, the status reporting module 1001 is configured to perform the following steps: when the first node triggers SCG deactivation, receive a first message sent by the first node; in response to the first message, send the first message Two messages to the first node.

In a possible implementation manner, the first message includes at least one of the following: first request information requesting SCG deactivation; second request information requesting the second node to report the data transmission status; requesting the second node to report the first The third request information of the timer threshold value.

In a possible implementation manner, the second message includes at least one of the following items: data transmission information indicating a data transmission state; and a first timer threshold value.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer; first DRB identification information indicating that the second node has data transmission; indicating that the second node does not have data The transmitted second DRB identification information; the first indication information indicating whether the second node has data being transmitted; the buffered data information; and the second indication information indicating whether to deactivate.

In a possible implementation manner, the DRB information at least includes: a DRB identifier, and third indication information indicating whether there is data transmission in the DRB.

In a possible implementation manner, the apparatus further includes other functional modules for performing the following steps: receiving a deactivation configuration message sent by the first node based on the data transmission state.

In a possible implementation manner, the deactivation configuration message includes at least one of the following items: bearer configuration information instructing the second node to reconfigure the bearer; for notifying the second node that the first node confirms the first timer threshold value The first confirmation information of the first node; the second timer threshold value provided by the first node; the third timer threshold value determined through negotiation between the first node and the second node; used to instruct the node that sends the SCG deactivation command to the user equipment information of the first node.

In a possible implementation manner, the deactivation module 1002 is configured to perform the following steps: perform a bearer reconfiguration process; perform a deactivation SCG process; send a deactivation configuration confirmation message to the first node; start a first timer; start a second timer; starts a third timer.

In a possible implementation manner, the deactivation configuration confirmation message includes at least one of the following: second confirmation information used to notify the first node of the second node's confirmation of the deactivation configuration; the first node negotiates with the second node to determine The fourth timer threshold value of ; is used to indicate the second node information of the node that sends the SCG deactivation command to the user equipment.

In a possible implementation manner, the apparatus further includes other functional modules for performing the following steps: starting a fourth timer.

In a possible implementation manner, the apparatus further includes other functional modules for executing the following steps: when the first timer times out, the deactivation SCG procedure is executed; or when the second timer times out, the deactivation SCG procedure is executed; or when the first timer times out, the deactivation SCG procedure is executed; The SCG deactivation procedure is executed when the third timer expires; or the SCG deactivation procedure is executed when the fourth timer expires.

In a possible implementation manner, the apparatus further includes other functional modules for performing the following steps: sending an SCG deactivation command to the user equipment.

It should be noted that the division of units and/or modules in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation. In addition, each functional unit and/or module in each embodiment of the present application may be integrated into one processing unit and/or module, or each unit and/or module may exist physically alone, or two or more Units and/or modules are integrated in one unit and/or module. The above-mentioned integrated units and/or modules may be implemented in the form of hardware, or may be implemented in the form of software functional units and/or modules.

If the integrated units and/or modules are implemented in the form of software functional units and/or modules and sold or used as independent products, they may be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the related technology, or all or part of the technical solution, and the computer software product is stored in a storage medium, Several instructions are included to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes.

In addition, the data transmission device and data transmission method provided by the above embodiments are based on the same application concept. Since the method and the device solve problems in similar principles, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

Therefore, through the determination of the data transmission state, the master node can know whether the secondary node has data being transmitted, so as to avoid deactivation related processing when the data is being transmitted, so as to effectively solve the problem of the secondary cell group existing in the related art. An issue that could cause data transmission to be interrupted during deactivation.

Fig. 14 shows a structural block diagram of a master node according to an exemplary embodiment. The master node is suitable for the network device under the MCG in the multi-connection scenario shown in FIG. 1 .

As shown in FIG. 14 , the master node 1100 at least includes a processor 1110 , a memory 1120 and a transceiver 1130 .

The transceiver 1130 is used for receiving and transmitting data under the control of the processor 1110 .

In FIG. 14, the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 1110 and various circuits of memory represented by memory 1120 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface. Transceiver 1130 may be a number of elements, including transmitters and receivers, providing units and/or modules for communicating with various other devices over transmission media including wireless channels, wired channels, fiber optic cables, etc. medium.

The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 in performing operations.

Optionally, the processor 1110 may be a central processor (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (Complex Programmable Logic). Device, CPLD), the processor 1110 may also adopt a multi-core architecture. The processor 1110 and the memory 1120 may also be arranged physically separately.

The processor 1110 is configured to perform the following steps according to the obtained executable instructions by calling the computer program stored in the memory 1120: when the secondary cell group SCG deactivation is triggered, determine the data transmission state of the second node; perform the data transmission state based on the determined data transmission state. Deactivate related processing.

In a possible implementation manner, the processor 1110 is further configured to perform the following steps: when the first node triggers SCG deactivation, send a first message to the second node; receive the second node sending the first message in response to and determine the data transmission status of the second node according to the second message.

In a possible implementation manner, the first message includes at least one of the following: first request information requesting SCG deactivation; second request information requesting the second node to report the data transmission status; requesting the second node to report the first timing The third request information of the threshold value of the controller.

In a possible implementation manner, the processor 1110 is further configured to perform the following steps: when the second node triggers SCG deactivation, receive a second message sent by the second node; Data transfer status.

In a possible implementation manner, the second message includes at least one of the following: data transmission information representing the data transmission state; and a first timer threshold value.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer; first DRB identification information indicating that the second node has data transmission; indicating that the second node does not have data transmission second DRB identification information; first indication information indicating whether the second node has data being transmitted; buffering data information; and second indication information indicating whether to deactivate.

In a possible implementation manner, the DRB information at least includes: a DRB identifier, and third indication information indicating whether there is data transmission in the DRB.

In a possible implementation manner, the processor 1110 is further configured to perform the following steps: executing a deactivation SCG procedure; sending a deactivation configuration message to the second node; starting a first timer; starting a second timer; starting a third timer.

In a possible implementation manner, the deactivation configuration message includes at least one of the following: bearer configuration information instructing the second node to reconfigure the bearer; The first confirmation information; the second timer threshold value provided by the first node; the third timer threshold value determined through negotiation between the first node and the second node; used to indicate the node sending the SCG deactivation command to the user equipment; First node information.

In a possible implementation manner, the processor 1110 is further configured to perform the following step: receiving a deactivation configuration confirmation message sent by the second node in response to the deactivation configuration message.

In a possible implementation manner, the deactivation configuration confirmation message includes at least one of the following: second confirmation information for notifying the first node of the second node's confirmation of the deactivation configuration; The fourth timer threshold value; the second node information used to indicate the node that sends the SCG deactivation command to the user equipment.

In a possible implementation manner, the processor 1110 is further configured to perform the following step: start a fourth timer.

In a possible implementation manner, the processor 1110 is further configured to perform the following steps: when the first timer times out, execute the deactivation SCG procedure; or when the second timer times out, execute the deactivation SCG procedure; or when the third timer expires The SCG deactivation procedure is executed upon timeout; or the SCG deactivation procedure is executed when the fourth timer times out.

In a possible implementation manner, the processor 1110 is further configured to perform the following step: sending an SCG deactivation command to the user equipment. Fig. 15 shows a structural block diagram of a secondary node according to an exemplary embodiment. The secondary node is suitable for the network device under the SCG in the multi-connection scenario shown in FIG. 1 .

As shown in FIG. 15 , the secondary node 1300 at least includes: a processor 1310 , a memory 1320 and a transceiver 1330 .

The transceiver 1330 is used for receiving and transmitting data under the control of the processor 1310 .

In FIG. 15, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1310 and various circuits of memory represented by memory 1320 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface. Transceiver 1330 may be a number of elements, including transmitters and receivers, providing units and/or modules for communicating with various other devices over transmission media including wireless channels, wired Channels, optical cables and other transmission media. For different auxiliary nodes, the user interface 1340 may also be an interface capable of externally connecting a required device, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1310 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1310 in performing operations.

Optionally, the processor 1310 may be a CPU (central processor), an ASIC (Application Specific Integrated Circuit, application specific integrated circuit), an FPGA (Field Programmable Gate Array, field programmable gate array) or a CPLD (Complex Programmable Logic Device, complex Programmable logic device), the processor 1310 may also adopt a multi-core architecture. The processor 1310 and the memory 1320 may also be arranged physically separately.

The processor 1310 calls the computer program stored in the memory 1320 to execute the following steps according to the obtained executable instructions: when the SCG deactivation is triggered, report the data transmission status of the second node to the first node; based on the data transmission status Perform deactivation related processing.

In a possible implementation manner, the processor 1310 is further configured to perform the following steps: when the second node triggers the deactivation of the SCG, send a second message to the first node to report the data transmission status of the second node.

In a possible implementation manner, the processor 1310 is further configured to perform the following steps: when the first node triggers SCG deactivation, receive a first message sent by the first node; in response to the first message, send the all The second message is sent to the first node.

In a possible implementation manner, the first message includes at least one of the following: first request information requesting SCG deactivation; second request information requesting the second node to report the data transmission status; requesting the second node to report the first The third request information of the timer threshold value.

In a possible implementation manner, the second message includes at least one of the following items: data transmission information indicating a data transmission state; and a first timer threshold value.

In a possible implementation manner, the data transmission information includes at least one of the following: DRB information indicating the DRB status of the data radio bearer; first DRB identification information indicating that the second node has data transmission; indicating that the second node does not have data The transmitted second DRB identification information; the first indication information indicating whether the second node has data being transmitted; the buffered data information; and the second indication information indicating whether to deactivate.

In a possible implementation manner, the DRB information at least includes: a DRB identifier, and third indication information indicating whether there is data transmission in the DRB.

In a possible implementation manner, the processor 1310 is further configured to perform the following step: receiving a deactivation configuration message sent by the first node based on the data transmission state.

In a possible implementation manner, the deactivation configuration message includes at least one of the following items: bearer configuration information instructing the second node to reconfigure the bearer; for notifying the second node that the first node confirms the first timer threshold value The first confirmation information of the first node; the second timer threshold value provided by the first node; the third timer threshold value determined through negotiation between the first node and the second node; used to instruct the node that sends the SCG deactivation command to the user equipment information of the first node.

In a possible implementation manner, the processor 1310 is further configured to perform the following steps: perform a bearer reconfiguration process; perform a deactivation SCG process; send a deactivation configuration confirmation message to the first node; start a first timer; Second timer; start third timer.

In a possible implementation manner, the deactivation configuration confirmation message includes at least one of the following: second confirmation information used to notify the first node of the second node's confirmation of the deactivation configuration; the first node negotiates with the second node to determine The fourth timer threshold value of ; is used to indicate the second node information of the node that sends the SCG deactivation command to the user equipment.

In a possible implementation manner, the processor 1310 is further configured to perform the following step: start a fourth timer.

In a possible implementation manner, the processor 1310 is further configured to perform the following steps: when the first timer times out, execute the deactivation SCG procedure; or when the second timer times out, execute the deactivation SCG procedure; or when the third timer times out When the timer expires, the SCG deactivation procedure is executed; or when the fourth timer times out, the SCG deactivation procedure is executed.

In a possible implementation manner, the processor 1310 is further configured to perform the following step: sending an SCG deactivation command to the user equipment. It should be noted here that the above-mentioned device provided by the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment, and can achieve the same technical effect, and the same as the method embodiment in this embodiment is not repeated here. The parts and beneficial effects will be described in detail.

In addition, an embodiment of the present application provides a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the data transmission methods in the foregoing embodiments are implemented. The storage medium can be any available medium or data storage device that can be accessed by the processor, including, but not limited to, magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, etc.) , HVD, etc.), and semiconductor memory (eg, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state disk (SSD)), etc.

An embodiment of the present application provides a program product, for example, the program product is an FPGA chip or a DSP chip, and the program product includes executable instructions, and the executable instructions are stored in a storage medium. The processor reads the executable instruction from the storage medium, so that when the executable instruction is executed by the processor, the data transmission methods in the foregoing embodiments are implemented.

Compared with the related art, the DRB status, whether to deactivate the SCG, and when to deactivate the SCG can be negotiated between the MN and the SN in combination with the data transmission state and the timer, so that the deactivation correlation can be avoided when the data is being transmitted. processing, thereby effectively solving the problem in the related art that the data transmission may be interrupted during the deactivation of the secondary cell group, which is beneficial to improve user perception.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media having computer-usable program code embodied therein, including but not limited to disk storage, optical storage, and the like.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowcharts and/or block diagrams, and combinations of flows and/or blocks in the flowcharts and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the processor-readable memory result in the manufacture of means including the instructions product, the instruction means implements the functions specified in the flow or flow of the flowchart and/or the block or blocks of the block diagram.

These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process that Execution of the instructions provides steps for implementing the functions specified in the flowchart or blocks and/or the block or blocks of the block diagrams.

It should be understood that although the various steps in the flowchart of the accompanying drawings are sequentially shown in the order indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. Moreover, at least a part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution sequence is also It does not have to be performed sequentially, but may be performed alternately or alternately with other steps or at least a portion of sub-steps or stages of other steps.

The above are only part of the embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the principles of the present application, several improvements and modifications can also be made. It should be regarded as the protection scope of this application.

Claims (33)

1. A method for realizing secondary cell group deactivation, wherein the method is performed by a first node, the method comprising: When the secondary cell group SCG deactivation is triggered, determine the data transmission state of the second node; Deactivation related processing is performed based on the determined data transmission state. 2. The method according to claim 1, wherein, when the SCG deactivation is triggered, determining the data transmission state of the second node, comprising: sending a first message to the second node when the first node triggers the deactivation of the SCG; A second message sent by the second node in response to the first message is received, and a data transmission state of the second node is determined according to the second message. 3. The method of claim 2, wherein the first message comprises at least one of the following: the first request information for requesting SCG deactivation; requesting the second node to report the second request information of the data transmission status; Requesting the second node to report third request information for the threshold value of the first timer. 4. The method according to claim 1, wherein, when the SCG deactivation is triggered, determining the data transmission state of the second node, comprising: When the second node triggers the deactivation of the SCG, receiving a second message sent by the second node; The data transmission status of the second node is determined according to the second message. 5. The method of claim 2 or 4, wherein the second message comprises at least one of the following: Data transmission information indicating data transmission status; first timer threshold value. 6. The method of claim 5, wherein the data transmission information comprises at least one of the following: DRB information indicating the DRB status of the data radio bearer; Indicates that the second node has the first DRB identification information for data transmission; Indicates that the second node does not have the second DRB identification information for data transmission; first indication information indicating whether the second node has data being transmitted; cache data information; Second indication information indicating whether to deactivate. 7 . The method according to claim 6 , wherein the DRB information at least comprises: a DRB identifier and third indication information indicating whether there is data transmission in the DRB. 8 . 8. The method of claim 1, wherein the deactivation-related processing based on the determined data transmission state comprises at least one of the following: Execute the deactivation SCG process; sending a deactivation configuration message to the second node; Start the first timer; start the second timer; start the third timer. 9. The method of claim 8, wherein the deactivation configuration message comprises at least one of the following: Bearer configuration information instructing the second node to reconfigure the bearer; first confirmation information for notifying the second node that the first node confirms the first timer threshold value; the second timer threshold value provided by the first node; a third timer threshold value determined through negotiation between the first node and the second node; The first node information used to indicate the node that sends the SCG deactivation command to the user equipment. 10. The method of claim 8, further comprising: A deactivation configuration confirmation message sent by the second node in response to the deactivation configuration message is received. 11. The method of claim 10, wherein the deactivation configuration confirmation message comprises at least one of the following: second confirmation information for notifying the first node that the second node confirms the deactivation configuration; a fourth timer threshold value determined through negotiation between the first node and the second node; Second node information used to indicate the node that sends the SCG deactivation command to the user equipment. 12. The method of claim 11, wherein the deactivation-related processing based on the determined data transmission state further comprises at least one of the following: Start the fourth timer. 13. The method of claim 8 or 12, wherein the performing the deactivation SCG process comprises: Execute the deactivation SCG procedure when the first timer expires; or Execute the deactivation SCG procedure when the second timer expires; or Execute the deactivation SCG procedure when the third timer expires; or When the fourth timer expires, the deactivation SCG procedure is performed. 14. The method of claim 13, wherein the performing the deactivation SCG procedure further comprises: Send the SCG deactivation command to the user equipment. 15. A method for deactivating a secondary cell group, characterized in that it is performed by a second node, the method comprising: When SCG deactivation is triggered, report the data transmission status of the second node to the first node; Deactivation related processing is performed based on the data transmission state. 16. The method of claim 15, wherein when the SCG deactivation is triggered, reporting the data transmission status of the second node to the first node, comprising: When the second node triggers the deactivation of the SCG, a second message is sent to the first node to report the data transmission status of the second node. 17. The method according to claim 15, wherein when the SCG deactivation is triggered, reporting the data transmission status of the second node to the first node, comprising: When the first node triggers the deactivation of the SCG, receiving the first message sent by the first node; In response to the first message, the second message is sent to the first node. 18. The method of claim 17, wherein the first message comprises at least one of the following: the first request information for requesting SCG deactivation; requesting the second node to report the second request information of the data transmission status; Requesting the second node to report third request information for the threshold value of the first timer. 19. The method of claim 16 or 17, wherein the second message comprises at least one of the following: Data transmission information indicating data transmission status; first timer threshold value. 20. The method of claim 19, wherein the data transmission information comprises at least one of the following: DRB information indicating the DRB status of the data radio bearer; Indicates that the second node has the first DRB identification information for data transmission; Indicates that the second node does not have the second DRB identification information for data transmission; first indication information indicating whether the second node has data being transmitted; cache data information; Second indication information indicating whether to deactivate. 21 . The method according to claim 20 , wherein the DRB information at least comprises: a DRB identifier and third indication information indicating whether there is data transmission in the DRB. 22 . 22. The method of claim 15, wherein the method further comprises: A deactivation configuration message sent by the first node based on the data transmission state is received. 23. The method of claim 22, wherein the deactivation configuration message comprises at least one of the following: Bearer configuration information instructing the second node to reconfigure the bearer; first confirmation information for notifying the second node that the first node confirms the first timer threshold value; the second timer threshold value provided by the first node; a third timer threshold value determined through negotiation between the first node and the second node; The first node information used to indicate the node that sends the SCG deactivation command to the user equipment. 24. The method according to claim 15 or 22, wherein the deactivation-related processing based on the data transmission state comprises at least one of the following: Execute the bearer reconfiguration process; Execute the deactivation SCG process; sending a deactivation configuration confirmation message to the first node; Start the first timer; start the second timer; start the third timer. 25. The method of claim 24, wherein the deactivation configuration confirmation message comprises at least one of the following: second confirmation information for notifying the first node that the second node confirms the deactivation configuration; a fourth timer threshold value determined through negotiation between the first node and the second node; Second node information used to indicate the node that sends the SCG deactivation command to the user equipment. 26. The method of claim 25, wherein the deactivation-related processing based on the data transmission state further comprises at least one of the following: Start the fourth timer. 27. The method of claim 26, wherein the performing the deactivation SCG process comprises: Execute the deactivation SCG procedure when the first timer expires; or Execute the deactivation SCG procedure when the second timer expires; or Execute the deactivation SCG procedure when the third timer expires; or When the fourth timer expires, the deactivation SCG procedure is performed. 28. The method of claim 27, wherein the performing the deactivation SCG process further comprises: Send the SCG deactivation command to the user equipment. 29. A first node, comprising: a memory, a transceiver, and a processor; Wherein, the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the following steps : when the SCG deactivation is triggered, determine the data transmission state of the second node; perform deactivation related processing based on the determined data transmission state. 30. A second node, comprising: a memory, a transceiver, and a processor; Wherein, the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor; the processor is used to read the computer program in the memory and execute the following steps : when the SCG deactivation is triggered, report the data transmission state of the second node to the first node; perform deactivation related processing based on the data transmission state. 31. An apparatus for deactivating a secondary cell group, characterized in that, when applied to a first node, the apparatus comprises: a state determination module, configured to determine the data transmission state of the second node when the SCG deactivation is triggered; A deactivation module, configured to perform deactivation related processing based on the determined data transmission state. 32. An apparatus for deactivating a secondary cell group, characterized in that, when applied to a second node, the apparatus comprises: a status reporting module, configured to report the data transmission status of the second node to the first node when the SCG deactivation is triggered; A deactivation module, configured to perform deactivation related processing based on the data transmission state. 33. A storage medium on which a computer program is stored, characterized in that, when the computer program is executed by a processor, the method for realizing SCG deactivation according to any one of claims 1 to 28 is implemented.

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