WO2022028477A1

WO2022028477A1 - Data transmission method and apparatus, storage medium, chip, and related device

Info

Publication number: WO2022028477A1
Application number: PCT/CN2021/110535
Authority: WO
Inventors: 徐敏
Original assignee: 展讯通信（上海）有限公司
Priority date: 2020-08-05
Filing date: 2021-08-04
Publication date: 2022-02-10
Also published as: CN114071604A; CN114071604B

Abstract

Disclosed in embodiments of the present application are a data transmission method and apparatus, a storage medium, a chip, and a related device. The method is applied to a user equipment, the user equipment being in a dual connectivity (DC) state. The method comprises: receiving configuration information; and if a secondary cell group (SCG) is in an SCG suspension state, according to the configuration information, switching service data from the SCG to a master cell group (MCG) for transmission. According to the present invention, the time delay and energy consumption of data transmission of the user equipment can be reduced.

Description

Data transmission method, device, storage medium, chip and related equipment

technical field

The present invention relates to the field of communications, and in particular, to a data transmission method, device, storage medium, chip and related equipment.

Background technique

From the UE (User Equipment, user equipment) side, the dual connectivity (Dual Connectivity, DC) scenario involves three different bearer types, namely MCG Bearer (Master Cell Group Bearer, master cell group bearer), SCG Bearer ( Secondary Cell Group Bearer, secondary cell group bearer) and Split Bearer (separated bearer). From the network side, these three bearers can be terminated either at the MN (MN Terminated) or at the SN (SN Terminated). Among them, the MN Terminated Bearers (the bearer terminated at the MN) for the CN (Core Network, core network) user plane connection is terminated at the MN (Master Node, the main base station), that is, PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) The layer is in the MN; the SN Terminated Bearers (bearers terminated in the SN) are terminated in the SN (Secondary Node, secondary base station) for the CN user plane connection, that is, the PDCP layer is in the SN. On the Uu user plane, for different bearer types, MCG or SCG resources are related, that is, for MCG Bearers, only MCG radio resources are related; for SCG Bearers, only SCG radio resources are related; for Split Bearer, MCG radio resources and SCG radio resources will be related. The Split Bearer includes the bearer of the MCG (Master Cell Group, primary cell group) branch (leg) and the SCG (Secondary Cell Group, secondary cell group) branch (leg) bearer.

At present, when the SCG is in the suspended state, if the SCG Bearer or the bearer of the SCG branch configured in the form of Split Bearer has service data to be transmitted, it is necessary to activate the SCG through a series of network configurations, such as: complete PSCell ( Primary SCG Cell, primary and secondary cells) TA (Timing Advance, timing advance) maintenance, Beam (beam) management and channel quality reporting, etc., can transmit the service data, which increases the delay and energy consumption of transmitting service data.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a data transmission method, apparatus, storage medium, chip and related equipment, which can reduce the time delay and energy consumption of transmitting service data.

In order to solve the above technical problems, in the first aspect, an embodiment of the present application provides a data transmission method, which is applied to a user equipment, and the user equipment is in a dual-connection DC state, and the method includes:

receive configuration information;

If the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In a second aspect, an embodiment of the present application further provides a data transmission method, the method comprising:

Sending configuration information to enable the user equipment in the dual-connection DC state to perform, if the secondary cell group SCG is in the secondary cell group SCG Suspension state, switch service data from the secondary cell group SCG according to the configuration information To the primary cell group MCG transmission.

In a third aspect, an embodiment of the present application provides a data transmission device, where the data transmission device includes: a storage device and a processor,

the storage device for storing program codes;

The processor, when invoking the stored code, is configured to execute the data transmission method according to the first aspect.

In a fourth aspect, an embodiment of the present application further provides a data transmission device, where the data transmission device includes: a storage device and a processor,

the storage device for storing program codes;

The processor, when invoking the stored code, is configured to execute the data transmission method according to the second aspect.

In a fifth aspect, an embodiment of the present application provides a data transmission apparatus, where the data transmission apparatus is applied to user equipment, the user equipment is in a dual-connection DC state, and the data transmission apparatus includes:

A receiving module for receiving configuration information;

A switching module, configured to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in the secondary cell group suspension SCG Suspension state.

In a sixth aspect, an embodiment of the present application further provides a data transmission device, where the data transmission device includes:

A sending module, configured to send configuration information, so that the user equipment performs, if the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, then according to the configuration information, switches the service data from the secondary cell group SCG to Primary cell group MCG transmission.

In a seventh aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program causes a computer to execute the data transmission method described in the first aspect.

In an eighth aspect, an embodiment of the present application further provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program causes a computer to execute the data transmission method described in the second aspect.

In a ninth aspect, an embodiment of the present application provides a chip, where the chip is configured to receive configuration information;

In a tenth aspect, an embodiment of the present application further provides a chip, which is configured to output configuration information, so as to facilitate sending the configuration information, so that the user equipment in the dual-connection DC state executes the SCG if the secondary cell group In the SCG Suspension state of the secondary cell group, according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In an eleventh aspect, an embodiment of the present application provides a module device, the module device includes an input interface and a chip module, wherein:

the input interface for receiving configuration information;

The chip module is configured to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in the secondary cell group suspension SCG Suspension state.

A twelfth aspect, an embodiment of the present application further provides a modular device, the modular device includes an output interface, wherein:

The output interface is used for outputting configuration information, so as to send the configuration information, so that the user equipment in the dual-connection DC state executes the SCG Suspension state according to the According to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

Implementing the embodiments of the present application has the following beneficial effects:

When the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, the user equipment can automatically switch the service data from the secondary cell group SCG to the primary cell group MCG transmission according to the configuration information, which reduces the delay of the data transmission of the user equipment and energy consumption.

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 used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

FIG. 1 is a scene diagram of a data transmission method provided by an embodiment of the present application;

2 is a schematic flowchart of a data transmission method according to an embodiment of the present application;

3 is a schematic diagram of an interaction flow of a data transmission method provided by an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a data transmission device according to an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present application;

6 is a schematic structural diagram of another data transmission apparatus provided by an embodiment of the present application;

7 is a schematic structural diagram of a modular device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another module device according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

It should be noted that “first”, “second”, “third”, etc. in the description and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe specific order or sequence. It is to be understood that the data so used may be interchanged under appropriate circumstances such that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or server comprising a series of steps or elements is not necessarily limited to those steps or elements expressly listed, Rather, other steps or units not expressly listed or inherent to the process, method, product or apparatus may be included.

Please refer to FIG. 1. FIG. 1 is a scene diagram of a data transmission method provided by an embodiment of the present application. As shown in FIG. 1, in this data transmission scenario, the user equipment 101 is in a dual-connectivity (DC) state, and communicates with the MN (MeNB, primary base station) 102 and the SN (SeNB, secondary base station) 103, and the MN 102 In communication with SN 103, both MN 102 and SN 103 can communicate with core network 104. MN 102 sends SCG Suspension Requset (secondary cell group suspension request) to SN 103; SN 103 makes SCG (Secondary Cell Group, secondary cell group) in the SCG Suspension (secondary cell group suspension) state according to the received SCG Suspension Requset, and feed back the information of SCG Suspension Complete (secondary cell group suspension complete) to the MN 102; the MN 102 sends the Indication to Suspend SCG (the indication of the suspended secondary cell) to the user equipment according to the information of the SCG Suspension Complete; The Suspend SCG enters the SCG suspend state, the PSCell (Primary SCG Cell, primary and secondary cells) is configured with a long-period DRX (Discontinuous Reception, discontinuous reception), and each Scell (Secondary Cell, secondary cell) is in the Dormancy (sleep) state.

Among them, the network device can configure the user equipment to enter or leave the SCG suspension state through RRC (Radio Resource Control, Radio Resource Control) messages, or through MAC CE (Media Access Control Control Element, Media Access Control Layer Control Element) or Lower Layer Indication (lower layer indication information) instructs the user equipment to enter or leave the SCG suspension state. The Lower Layer Indication may be PHY (physical layer) indication information or DCI (Downlink Control Information, downlink control information) and the like.

In this embodiment of the present application, the SCG Suspension may be SN or SCG deactivation, or may be SN or SCG suspension.

In this embodiment of the present application, for the user equipment side, when the SCG is in the SCG Suspension state, if there is a need for an SCG Bearer (Secondary Cell Group Bearer, secondary cell group bearer) or an SCG configured as a Split Bearer (separated bearer) form The service data transmitted by the bearer of the branch (leg), that is, the service data that needs to be transmitted through the SCG radio resources, then according to the received configuration information sent by the network device, the service data is switched from the SCG to the MCG (Master Cell Group, master cell group). ) transmission, that is, the user equipment first sends the service data to the MN 102, then the MN 102 forwards the service data to the SN 103, and then the SN 103 sends the service data to the core network 104.

It should be noted that, at present, Split Bearer can configure the SCG branch or MCG branch as the primary path, that is, if the amount of data to be transmitted by the user equipment is less than the transmission data amount threshold, the user equipment will only transmit on the primary path. Service data; when the SCG is in the SCG Suspension state, the described configuration of the SCG branch of the Split Bearer form bears and transmits service data refers to configuring the SCG branch of the Split Bearer as the main path, that is, if the user equipment needs to transmit data If the amount is less than the transmission data amount threshold, the user equipment will only transmit service data on the SCG branch of the Split Bearer, that is, the SCG needs to be activated, such as: completing PSCell TA (Timing Advance, timing advance) maintenance, Beam (beam) management and channel Quality reporting, etc., can transmit the service data, which increases the delay and energy consumption of data transmission.

In the embodiment of the present application, when the SCG is in the SCG Suspension state, if there is a need for an SCG Bearer (Secondary Cell Group Bearer, a secondary cell group bearer) or a bearer of an SCG branch (leg) configured as a Split Bearer (separated bearer) form The transmitted service data does not activate the SCG, but switches the service data from the SCG to the MCG for transmission, which avoids activating the SCG to increase the delay and energy consumption of transmitting service data.

Among them, switching the service data from the SCG to the MCG transmission, that is, switching the service data from the SN 103 to the MN 102 for transmission, and then switching the service data from the bearer of the SCG Bearer and/or the SCG branch of the Split Bearer to the MCG Bearer and/or Or the bearer transmission of the MCG branch of the Split Bearer, that is, switching the RLC (Radio Link Control, Radio Link Control sublayer) Bearer from SCG to MCG, or PDCP (Packet Data Convergence Protocol, Packet Data Convergence Protocol) routing The rule indicates that according to the configuration information, the data packet is switched from the SN 103 RLC to the MN 102 RLC for transmission, that is, switching from using SCG radio resources to using MCG radio resources to transmit service data. Wherein, there may be one or more relevant bearers for transmitting the service data that needs to be transmitted in the SCG. In the embodiments of the present application, the multiple refers to at least two.

In this embodiment of the present application, the network device includes MN 102 and SN 103. The configuration information can be sent by the core network 104 to the SN 103, directly sent by the SN 103 to the user equipment or sent to the user equipment by the SN 103 through the MN 102; the configuration information can be configured by the MN 102 and sent to the user equipment; the The configuration information can also be configured by the SN 103 and sent to the user equipment through the MN 102, or configured by the SN 103 and sent to the user equipment, and the network equipment can also be configured or sent to the user equipment in other ways. The manner in which configuration information is sent to the user equipment is limited.

In this embodiment of the present application, the configuration information may include: handover conditions, and/or radio resource configuration information. The radio resource configuration information includes the secondary cell group SCG radio resource configuration information and the primary cell group MCG radio resource configuration information, and/or the radio resource configuration information includes split bearer Split Bearer configuration information.

In this embodiment of the present application, if the configuration information includes a handover condition, the network device instructs the user equipment through the configuration information to perform: if it is determined that the handover condition is met, the service data is handed over from the secondary cell group SCG to The primary cell group MCG transmission.

It should be noted that the configuration information can be used to instruct the user equipment to switch service data from the secondary cell group SCG to the primary cell group MCG for transmission if the SCG is in a suspended state, and the configuration information may not carry switching conditions.

In the embodiment of the present application, if the configuration information includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information, the configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resource resource to transmit service data or use the primary cell group MCG radio resource to transmit service data. Specifically, the network device adds the MCG bearer corresponding to the SCG bearer while configuring the relevant one or more radio bearers for transmitting service data as the SCG bearer, and instructs the user equipment to use only one of the SCG bearer and the MCG bearer. A kind of transmission business data.

In the embodiment of the present application, the configuration information includes: split bearer Split Bearer configuration information; the configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or use the primary cell group MCG radio resources The resource transmits service data, that is, the split bearer configuration information instructs to configure a special configuration of the Split Bearer, and the specially configured Split Bearer is configured to transmit service data only through one of the SCG radio resources and the MCG radio resources. Wherein, the split bearer configuration information of the split bearer includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information.

In the embodiment of the present application, for one or more radio bearers, the configuration information may include one or more Split Bearer configuration information, that is, each radio bearer corresponds to one Split Bearer configuration information respectively. The network device may add indication information to the Split Bearer configuration information of any radio bearer configuration, where the indication information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or use the primary cell group MCG radio resources to transmit services. data, that is, indicating that the service data is transmitted only through one of the SCG radio resources and the MCG radio resources.

Further, the network device instructs the user equipment to switch the service data from the secondary cell group SCG to the primary cell group MCG in order to transmit the service data through the MCG radio resources when there is service data that needs to be transmitted through the SCG radio resources; but If the handover conditions in the configuration information are not met, and/or the conditions for activating the secondary cell group are met, and/or the user equipment receives the first indication information sent by the network equipment, the user equipment transmits the service data through the SCG , that is, the SCG is activated, so that the PSCell is in the Activated (activated state) and not in the Dormancy state, so that service data is transmitted through the SCG.

Specifically, MN 102 sends SCG Activation Request (SCG Activation Request) to SN 103; SN 103 activates SCG according to SCG Activation Request, and feeds back information of SCG Activation Complete (secondary cell group activation complete) to MN 102; MN 102 according to SCG Activation Complete information sends the Indication to Activation SCG (indication of activated secondary cell) to the user equipment; the user equipment enters the SCG activation state according to the Indication to Activation SCG, if the TA (Timing Advance, timing advance) is not maintained, then the user equipment is in the PScell Initiate a random access procedure to communicate with the SN to transmit service data.

It should be noted that if the SCell (or PSCell) is in the Deactivated (deactivated state, or inactive state), the user equipment cannot transmit service data, receive reference signals, and perform measurement reporting, etc. in the SCell (or PSCell). Operation; if the SCell (or PSCell) is Activated and not in the Dormancy state, the service data can be transmitted in the SCell (or PSCell); if the SCell (or PSCell) is in the Dormancy state, the user equipment can be in the SCell (or PSCell) Perform operations such as CSI (Channel State Information) measurement and/or beam management, but cannot transmit service data. Among them, Activated introduces the Dormancy state, mainly to save energy and quickly restore the data transmission of the SCell (or PSCell).

Further, when the network device receives the DL (DownLink, downlink) data to be transmitted, it can also determine that the SCG is not activated according to the switching conditions or the actual transmission situation of the network device, and forward the DL data to the MN 102 for scheduling through the SN 103. The network device may receive the DL data sent by the core network 104 to be transmitted to the user equipment.

In the embodiment of the present application, if the secondary cell group SCG is not in the SCG Suspension state of the secondary cell group, the user equipment and the network equipment both transmit service data through the SCG for the configured SCG Bearer or the specially configured Split Bearer, that is, through the SN 103 To transmit service data, that is, to transmit service data through SCG wireless resources, or to transmit service data through the bearer of the SCG branch in SCG Bearer or Split Bearer.

In the embodiments of this application, user equipment includes, but is not limited to, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station (Mobile Station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device ( Terminal Equipment), wireless communication equipment, user agent or user device. The user equipment may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL for short) station, a Personal Digital Assistant (PDA for short), a Wireless communication-enabled handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, or future evolved Public Land Mobile Networks (PLMN for short) ) in the terminal equipment, etc.

In the embodiment of this application, the user equipment communicates with the MN 102 through the Uu interface, the user equipment communicates with the SN 103 through the Uu interface, and the MN 102 and the SN 103 communicate through the Xn interface.

In the embodiment of the present application, the dual-connection scenario where the user equipment is located includes the same-frequency scenario and the inter-frequency scenario; at least two cells in the cells accessed by the user equipment are connected by different gNBs (devices that provide base station functions with 5G new air interface technology) . According to the connection of gNB to different core networks, dual connectivity can be divided into MR-DC (Muti-RAT Dual Connectivity, multi-standard dual connectivity) with EPC (4G core network) and MR-DC with 5GC (5G core network) two categories .

Wherein, in the MR-DC with EPC, the MN is the EUTRA base station (4G base station), the SN is the NR (New Radio, new air interface) base station, and the corresponding core network is the EPC. MR-DC with 5GC includes NG-RAN E-UTRA-NR Dual Connectivity (NG-RAN 4G & 5G dual connectivity) and NR-E-UTRA Dual Connectivity (5G & 4G dual connectivity). In NG-RAN E-UTRA-NR Dual Connectivity, MN is EUTRA base station, SN is NR base station, and the corresponding core network is 5GC. In NR-E-UTRA Dual Connectivity, MN is NR base station, SN is EUTRA base station, and the corresponding core network is 5GC.

Please refer to FIG. 2. FIG. 2 is a schematic flowchart of a data transmission method provided by an embodiment of the application. This specification provides the method operation steps as described in the embodiment or the flowchart, but based on conventional or non-creative work, it may include: More or fewer steps. The sequence of steps enumerated in the embodiments is only one of the execution sequences of many steps, and does not represent the only execution sequence. When an actual terminal or storage medium product is executed, the methods shown in the embodiments or the accompanying drawings may be executed sequentially or in parallel. Specifically, as shown in FIG. 2 , the data transmission method is applied to a user equipment, and the user equipment is in a dual-connection DC state, and the method includes:

S201: Receive configuration information.

If the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, step S202 is performed.

S202: According to the configuration information, switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission.

In the embodiment of the present application, when the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, the user equipment can automatically switch the service data from the secondary cell group SCG to the primary cell group MCG according to the configuration information for transmission, thereby reducing the number of users. Latency and energy consumption of device data transmission.

Correspondingly, the embodiment of the present application further provides another data transmission method, the data transmission method is applied to a network device, and the method includes:

S21: Send configuration information, so that the user equipment in the dual-connectivity DC state executes: If the secondary cell group SCG is in the secondary cell group suspension SCG Suspension state, then according to the configuration information, transfer service data to the secondary cell group The SCG switches to the primary cell group MCG transmission.

In this embodiment of the present application, the network device sends configuration information to the user equipment, so that when the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, the user equipment can automatically transfer service data to the secondary cell group SCG according to the configuration information Switching to the primary cell group MCG transmission reduces the delay and energy consumption of user equipment data transmission.

Please refer to FIG. 3. FIG. 3 is a schematic diagram of an interaction flow of a data transmission method provided by an embodiment of the present application. This specification provides the operation steps of the method as described in the embodiment or the flowchart, but based on conventional or non-creative work, it can be Include more or fewer steps. The sequence of steps enumerated in the embodiments is only one of the execution sequences of many steps, and does not represent the only execution sequence. When an actual terminal or storage medium product is executed, the methods shown in the embodiments or the accompanying drawings may be executed sequentially or in parallel. Specifically, as shown in Figure 3, the method includes:

S301: The network device sends configuration information, so that the user equipment in the dual-connection DC state executes that if the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, then according to the configuration information, the service data is sent to the secondary cell group by the secondary cell group SCG. The cell group SCG is switched to the primary cell group MCG for transmission.

In this embodiment of the present application, the configuration information includes: switching conditions;

Wherein, the configuration information is used to instruct the user equipment to perform, if it is determined that the handover condition is satisfied, handover the service data from the secondary cell group SCG to the primary cell group MCG for transmission.

In this embodiment of the present application, the configuration information is used to instruct the user equipment to perform, if the SCG is in a suspended state, switching the service data from the secondary cell group SCG to the primary cell group MCG for transmission. In this case, the configuration information may not carry the switching condition.

In the embodiment of the present application, the configuration information includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG to transmit service data.

In this embodiment of the present application, the configuration information includes split bearer configuration information;

The split bearer configuration information of the split bearer includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG radio resources to transmit service data.

In the embodiment of the present application, the configuration information is carried by the radio resource control RRC reconfiguration message, and the network device sends the RRC reconfiguration message to the user equipment, that is, sends the configuration information to the user equipment.

S302: The user equipment receives configuration information.

Wherein, the user equipment is in a dual-connection DC state.

S303: The network device sends second indication information, so that the user equipment activates or uses the configuration information according to the second indication information.

The second indication information is used to indicate that the secondary cell group SCG is in the SCG Suspension state of the secondary cell group.

It should be noted that, step S303 can be executed simultaneously with step S301, and is not limited to be executed after step S301.

S304: The user equipment receives the second indication information.

It should be noted that, step S304 can be executed simultaneously with step S302, and is not limited to be executed after step S302.

S305: The user equipment activates or uses the configuration information according to the second indication information.

If the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, step S306 is performed.

Wherein, the SCG of the secondary cell group is in the SCG Suspension state of the secondary cell group, and the PSCell and the Scells of all the SCGs are in a state that cannot or is not suitable for transmitting service data. The state unsuitable for transmitting service data refers to a state that does not have auxiliary information for transmitting service data, or other states that cannot transmit service data.

S306: The user equipment switches the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information.

Specifically, according to the activated configuration information, the user equipment switches the service data from the secondary cell group SCG to the primary cell group MCG for transmission, or the user equipment triggers the execution of the service data when the second indication information indicates to use the configuration information. Data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In the embodiment of the present application, when the configuration information includes: handover conditions; if it is determined that the handover conditions are met, the user equipment switches service data from the secondary cell group SCG to the primary cell group MCG for transmission.

Wherein, in the case where the configuration information includes handover conditions, the configuration information may not include the SCG radio resource configuration information of the secondary cell group and the MCG radio resource configuration information of the primary cell group, and/or the configuration information may not include the split bearer Split Bearer configuration information.

In the embodiment of the present application, the determining that the switching condition is satisfied includes any one of the following steps:

If the service data volume of the user equipment is less than the data volume threshold, it is determined that the switching condition is satisfied;

If the frequency at which the user equipment receives the service data packets to be transmitted is less than the frequency threshold, it is determined that the switching condition is satisfied.

Wherein, judging whether the service data volume of the user equipment is less than the data volume threshold may be: counting the service data volume of the user equipment within a preset time period, and judging whether the statistical service data volume is less than the data volume threshold; or Yes: Count the service data volume of the current time frame or the current moment in real time, and determine whether the counted service data volume is less than the data volume threshold.

In this embodiment of the present application, the same preset duration can be set for all SCG Bearers and/or specially configured Split Bearers, for example, define a timer, and the timer can be used for each SCG Bearer and/or specially configured Split Bearer Bearer sets a same preset duration; preset durations can also be set for each bearer, for example, a timer is defined for each bearer, and each timer sets a preset duration for the corresponding bearer; the timer can be It is a MAC Timer (Media Access Control Timer, media access control layer timer), or other forms of timers, which are not limited here.

The receiving of the service data packet to be transmitted by the user equipment means that the user equipment receives the service data packet to be transmitted to the network device. Specifically, the user equipment can receive service data packets sent by the upper layer, such as: service data packets sent by the application layer, or: the user equipment can receive service data packets of NAS (Non-Access Stratum, non-access stratum), etc. Subsequently, the received service data packets are transmitted to the network device.

The frequency at which the user equipment receives service data packets to be transmitted refers to the number of service data packets to be transmitted that are received by the user equipment in a unit time.

In the embodiment of the present application, by configuring the switching conditions, when the SCG Bearer has a small amount of service data to transmit, according to the switching conditions, the service data can be switched from the secondary cell group SCG to the primary cell group MCG for transmission, thereby saving SCG resource overhead , reducing the delay and energy consumption of user equipment data transmission.

In the embodiment of the present application, when the configuration information includes the SCG radio resource configuration information of the secondary cell group and the MCG radio resource configuration information of the primary cell group, if the user equipment has service data that needs to be transmitted through the SCG radio resources, the service data is sent by The secondary cell group SCG is switched to the primary cell group MCG for transmission, that is, the service data is switched from the SCG radio resource to the MCG radio resource transmission.

Wherein, in the case that the configuration information includes the SCG radio resource configuration information of the secondary cell group and the MCG radio resource configuration information of the primary cell group, the configuration information may not include the handover condition.

In the embodiment of this application, when the configuration information includes the split bearer configuration information, if the user equipment has service data that needs to be transmitted through the SCG radio resources, the service data is switched from the secondary cell group SCG to the primary cell group MCG transmission, that is, switching the service data from the SCG radio resource to the MCG radio resource transmission.

Wherein, in the case that the configuration information includes the split bearer configuration information, the configuration information may not include the switching condition.

S307: The network device sends the first indication information.

The first indication information is used to instruct to restore the secondary cell group SCG.

Specifically, the network device sends the first indication information to the user equipment to instruct the user equipment to restore the SCG of the secondary cell group, and then restore the transmission of service data in the SCG of the secondary cell group.

If the user equipment receives the first indication information, step S308 is performed;

And/or: if it is determined that the switching condition is not met, step S308 is performed;

And/or: if the conditions for activating the secondary cell group SCG are met, step S308 is performed.

It should be noted that, before the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, and the service data has not been switched from the secondary cell group SCG to the primary cell group MCG for transmission, if it is determined that the switching condition is not satisfied. , and/or, if the conditions for activating the secondary cell group SCG are met, the service data is transmitted through the secondary cell group SCG, and the service data is not switched from the secondary cell group SCG to the primary cell group MCG for transmission, that is, the SCG is directly activated. , to transmit service data through the SCG.

S308: The user equipment switches the service data from the primary cell group MCG to the secondary cell group SCG for transmission.

Specifically, the user equipment activates the SCG, and then switches the service data from the primary cell group MCG to the secondary cell group SCG for transmission, that is, the service data is transmitted and transmitted through the secondary cell group SCG.

If step S308 is triggered by the aforementioned determination that the handover condition is not met, and/or the aforementioned condition is met for activating the secondary cell group SCG, step S309 is executed.

S309: The user equipment sends third indication information.

The third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

Specifically, the user equipment sends third indication information to the network device to inform the network device that the user equipment transmits service data through the secondary cell group SCG.

S310: The network device receives the third indication information.

Specifically, the network equipment receives the third indication information sent by the user equipment, so as to know according to the third indication information: the user equipment transmits service data through the secondary cell group SCG, and then the network equipment can cooperate with the user equipment to execute the transfer of service data from The primary cell group MCG is switched to the secondary cell group SCG for transmission.

In the embodiment of the present application, the network device sends configuration information to the user equipment, and the user equipment can automatically switch the service data from the secondary cell group SCG according to the configuration information when the secondary cell group SCG is in the SCG Suspension state of the secondary cell group The transmission to the main cell group MCG reduces the time delay and energy consumption of user equipment data transmission.

Please refer to FIG. 4. FIG. 4 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application. Specifically, as shown in FIG. 4, the data transmission device includes: a storage device 401 and a processor 402; and the data The transmission device may also include a data interface 403 and a user interface 404 . Various types of buses can also be used to establish connections between various hardwares.

Through the data interface 403, the data transmission device can exchange data with other terminals, servers and other devices; the user interface 404 is used to realize human-computer interaction between the user and the data transmission device; the user The interface 404 may provide a touch display screen, physical keys, etc. to realize human-computer interaction between the user and the data transmission device.

The storage device 401 may include a volatile memory (Volatile memory), such as a random access memory (Random-Access Memory, RAM); the storage device 401 may also include a non-volatile memory (Non-Volatile Memory), such as a flash memory. Flash memory (Flash Memory), solid-state drive (Solid-State Drive, SSD), etc.; the storage device 401 may also include a combination of the above-mentioned types of memory.

The processor 402 may be a central processing unit (Central Processing Unit, CPU). The processor 402 may further include a hardware chip. The above-mentioned hardware chip can be an application-specific integrated circuit (Application-Specific Integrated Circuit, ASIC), a programmable logic device (Programmable Logic Device, PLD), and the like. The above-mentioned PLD may be a Field-Programmable Gate Array (FPGA), a Generic Array Logic (GAL), or the like.

For the case where the data transmission device is a user equipment in a dual-connection DC state:

The storage device 401 is used to store program codes;

The processor 402 is configured to receive configuration information when invoking the stored code;

In one embodiment, the configuration information includes: switching conditions;

In one embodiment, the configuration information includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

In one embodiment, the configuration information includes: split bearer Split Bearer configuration information;

In an embodiment, the processor 402 is further configured to transmit service data through the secondary cell group SCG if it is determined that the handover condition is not satisfied.

In an embodiment, the processor 402 is further configured to transmit service data through the secondary cell group SCG if the conditions for activating the secondary cell group SCG are met.

In an embodiment, the processor 402 is further configured to switch the service data from the primary cell group MCG to the secondary cell group SCG for transmission if the first indication information is received; the first indication information , used to instruct the recovery of the secondary cell group SCG.

In one embodiment, the determining that the switching condition is satisfied includes any one of the following steps:

In one embodiment, the configuration information is carried by a radio resource control RRC reconfiguration message.

In an embodiment, the processor 402 is further configured to receive second indication information before the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information; The second indication information activates or uses the configuration information.

In an embodiment, the second indication information is used to indicate that the secondary cell group SCG is in a secondary cell group suspension SCG Suspension state.

In an embodiment, the processor 402 is further configured to send third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

For the case where the data transmission device is a network device:

The storage device 401 is used to store program codes;

The processor 402 is configured to send configuration information when invoking the stored code, so that the user equipment in the dual-connection DC state executes the process according to the secondary cell group SCG Suspension state if the secondary cell group SCG For the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In one embodiment, the configuration information is carried by a radio resource control layer RRC reconfiguration message.

In an embodiment, the processor 402 is further configured to send second indication information, so that the user equipment activates or uses the configuration information according to the second indication information.

In an embodiment, the processor 402 is further configured to receive third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

In an embodiment, the processor 402 is further configured to send first indication information; the first indication information is used to instruct to restore the secondary cell group SCG.

Please refer to FIG. 5. FIG. 5 is a schematic structural diagram of a data transmission apparatus provided by an embodiment of the present application. Specifically, as shown in FIG. 5, the data transmission apparatus is applied to user equipment, and the user equipment is in a dual-connection DC state. , the data transmission device includes:

a receiving module 501, configured to receive configuration information;

The switching module 502 is configured to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in the secondary cell group SCG Suspension state.

In one embodiment, the data transmission device further includes:

A transmission module, configured to transmit service data through the secondary cell group SCG if it is determined that the handover condition is not satisfied.

In an embodiment, the transmission module is further configured to transmit service data through the secondary cell group SCG if the conditions for activating the secondary cell group SCG are met.

In one embodiment, the switching module 502 is further configured to switch the service data from the primary cell group MCG to the secondary cell group SCG for transmission if the first indication information is received; the first indication information , used to instruct the recovery of the secondary cell group SCG.

In an embodiment, the receiving module 501 is further configured to receive second indication information before the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information; The second indication information activates or uses the configuration information.

In one embodiment, the data transmission device further includes:

The sending module is configured to send third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

Please refer to FIG. 6. FIG. 6 is a schematic structural diagram of another data transmission apparatus provided by an embodiment of the application. Specifically, as shown in FIG. 6, the data transmission apparatus can be applied to network equipment, and the data transmission apparatus includes:

The sending module 601 is configured to send configuration information, so that the user equipment executes, if the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, then according to the configuration information, the service data is switched from the secondary cell group SCG To the primary cell group MCG transmission.

In an embodiment, the sending module 601 is further configured to send second indication information, so that the user equipment activates or uses the configuration information according to the second indication information.

In one embodiment, the data transmission device further includes:

The receiving module is configured to receive third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

In an embodiment, the sending module 601 is further configured to send first indication information; the first indication information is used to instruct to restore the secondary cell group SCG.

Correspondingly, the embodiments of the present application provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program enables a computer to perform steps S201 to S202, steps S302, S304 to S306 and The method described in any of the embodiments in S308 to S309. It can be understood that, the computer storage medium here may include both the built-in storage medium in the smart terminal, and certainly also the extended storage medium supported by the smart terminal. The computer storage medium provides storage space, and the storage space stores the operating system of the intelligent terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions may be one or more computer programs (including program codes). It should be noted that the computer storage medium here may be a high-speed RAM memory, or a non-volatile memory (Non-Volatile Memory), such as at least one magnetic disk memory; optionally, at least one storage medium located far away from the aforementioned processor may also be used. computer storage media.

Correspondingly, the embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, and the computer program enables a computer to perform steps S21, S301, S303, S307, and S310 of the present application The method described in any of the examples in . It can be understood that, the computer storage medium here may include both the built-in storage medium in the smart terminal, and certainly also the extended storage medium supported by the smart terminal. The computer storage medium provides storage space, and the storage space stores the operating system of the intelligent terminal. In addition, one or more instructions suitable for being loaded and executed by the processor are also stored in the storage space, and these instructions may be one or more computer programs (including program codes). It should be noted that the computer storage medium here can be a high-speed RAM memory, or a non-volatile memory (Non-Volatile Memory), such as at least one disk memory; optionally, it can also be at least one memory located far away from the aforementioned processor. computer storage media.

Correspondingly, an embodiment of the present application provides a chip, and the chip is applied to a user equipment in a dual-connection DC state;

the chip for receiving configuration information;

In an embodiment, the chip is further configured to transmit service data through the secondary cell group SCG if it is determined that the handover condition is not satisfied.

In one embodiment, the chip is further configured to transmit service data through the secondary cell group SCG if the conditions for activating the secondary cell group SCG are met.

In an embodiment, the chip is further configured to switch the service data from the primary cell group MCG to the secondary cell group SCG for transmission if the first indication information is received; the first indication information is used To instruct to restore the secondary cell group SCG.

In an embodiment, the chip is further configured to receive second indication information before the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information; according to the The second indication information is to activate or use the configuration information.

In an embodiment, the chip is further configured to output third indication information, so as to facilitate sending the third indication information; the third indication information is used to instruct the user equipment to transmit services through the secondary cell group SCG data.

It should be noted that the chip can execute the steps related to the user equipment in the method embodiments of FIG. 2 and FIG. 3 . For details, reference may be made to the implementation manners provided by the above steps, which will not be repeated here.

In one embodiment, the chip includes at least one processor, at least one first memory, and at least one second memory; wherein, the at least one first memory and the at least one processor are interconnected through a line, and the first memory stores There are instructions; the at least one second memory and the at least one processor are interconnected through lines, and the second memory stores the data that needs to be stored in the foregoing method embodiments.

For each device or product applied to or integrated in the chip, each module contained therein may be implemented by hardware such as circuits, or at least some of the modules may be implemented by a software program that runs on the integrated circuit inside the chip. The processor and the remaining (if any) modules can be implemented in hardware such as circuits.

Correspondingly, an embodiment of the present application further provides a chip, which is used for outputting configuration information, so as to facilitate sending the configuration information, so that the user equipment in the dual-connection DC state executes if the secondary cell group SCG is in the When the secondary cell group suspends the SCG Suspension state, according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In one embodiment, the chip is further configured to output second indication information, so as to send the second indication information, so that the user equipment activates or uses the configuration information according to the second indication information .

In an embodiment, the chip is further configured to receive third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

In an embodiment, the chip is further configured to output first indication information, so as to facilitate sending the first indication information; the first indication information is used to instruct to restore the secondary cell group SCG.

It should be noted that, the chip can execute the above step S21 and the related steps of the network device in the method embodiment of FIG. 3 , for details, refer to the implementation manners provided by the above steps, and details are not repeated here.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of a module device provided by an embodiment of the application. The module device includes an input interface 701 and a chip module 702, wherein:

The input interface 701 is used to receive configuration information;

The chip module 702 is configured to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in the secondary cell group SCG Suspension state

In one embodiment, the chip module 702 is further configured to transmit service data through the secondary cell group SCG if it is determined that the handover condition is not satisfied.

In one embodiment, the chip module 702 is further configured to transmit service data through the secondary cell group SCG if the conditions for activating the secondary cell group SCG are met.

In one embodiment, the chip module 702 is further configured to switch the service data from the primary cell group MCG to the secondary cell group SCG for transmission if the first indication information is received; the first indication information, used to instruct the recovery of the secondary cell group SCG.

In an embodiment, the input interface 701 is further configured to receive second indication information before the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information;

The chip module 702 is further configured to activate or use the configuration information according to the second indication information.

In one embodiment, the module device further includes:

The output interface is used for outputting third indication information so as to facilitate sending the third indication information; the third indication information is used for instructing the user equipment to transmit service data through the secondary cell group SCG.

In this embodiment of the present application, the input interface 701 and the output interface (not shown in FIG. 7 ) may be independent communication interfaces, or may be the same communication interface. The specific connection medium between the input interface 701 , the chip module 702 , and the output interface is not limited in the embodiments of the present application. In the embodiment of the present application, the input interface 701 , the chip module 702 and the output interface are connected by a bus 703 in FIG. 7 . The bus is represented by a thick line in FIG. 7 , and the connection between other components is only schematic. The description is not intended to be limiting. The bus 703 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 7, but it does not mean that there is only one bus or one type of bus.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another module device provided by an embodiment of the present application. The module device includes an output interface 801, wherein:

The output interface 801 is configured to output configuration information, so as to facilitate sending the configuration information, so that the user equipment in the dual-connection DC state executes the operation according to the SCG Suspension state if the secondary cell group SCG is in the SCG Suspension state. For the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.

In an embodiment, the output interface 801 is further configured to output second indication information, so as to send the second indication information, so that the user equipment activates or uses the second indication information according to the second indication information. configuration information.

In one embodiment, the module device further includes:

The input interface is used to receive third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.

In an embodiment, the output interface 801 is further configured to output first indication information, so as to facilitate sending the first indication information; the first indication information is used to instruct to restore the secondary cell group SCG.

In this embodiment of the present application, the output interface 801 and the input interface (not shown in FIG. 8 ) may be independent communication interfaces, or may be the same communication interface. The specific connection medium between the output interface 801 , the input interface and the chip module (not shown in FIG. 8 ) is not limited in the embodiments of the present application. In the embodiment of the present application, the output interface 801 , the chip module and the input interface are connected by a bus 802 in FIG. 8 . The bus is represented by a thick line in FIG. 8 , and the connection mode between other components is only for schematic illustration. , is not limited. The bus 802 can be divided into an address bus, a data bus, a control bus, and the like. For convenience of representation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.

The above disclosure is only a part of the embodiments of the present invention, of course, it cannot limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand the whole or part of the process of realizing the above embodiments, and make according to the claims of the present invention. The equivalent changes of the invention still belong to the scope covered by the invention.

Claims

A data transmission method, characterized in that, when applied to a user equipment, the user equipment is in a dual-connection DC state, and the method includes:

receive configuration information;

If the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.
The method of claim 1, wherein the configuration information comprises: switching conditions;

Wherein, the configuration information is used to instruct the user equipment to perform, if it is determined that the handover condition is satisfied, handover the service data from the secondary cell group SCG to the primary cell group MCG for transmission.
The method of claim 1, wherein the configuration information comprises: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG radio resources to transmit service data.
The method of claim 1, wherein the configuration information comprises: split bearer Split Bearer configuration information;

The split bearer configuration information of the split bearer includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG radio resources to transmit service data.
The method of claim 2, wherein the method further comprises:

If it is determined that the handover condition is not met, the service data is transmitted through the secondary cell group SCG.
The method of claim 1, wherein the method further comprises:

If the conditions for activating the secondary cell group SCG are met, the service data is transmitted through the secondary cell group SCG.
The method of claim 1, wherein the method further comprises:

If the first indication information is received, the service data is switched from the primary cell group MCG to the secondary cell group SCG for transmission; the first indication information is used to instruct the recovery of the secondary cell group SCG.
The method according to claim 2 or 5, wherein the determining that the switching condition is satisfied comprises any one of the following steps:

If the service data volume of the user equipment is less than the data volume threshold, it is determined that the switching condition is satisfied;

If the frequency at which the user equipment receives the service data packets to be transmitted is less than the frequency threshold, it is determined that the switching condition is satisfied.
The method of claim 1, wherein the configuration information is carried by a radio resource control RRC reconfiguration message.
The method according to claim 1, wherein before the switching of service data from the secondary cell group SCG to the primary cell group MCG according to the configuration information, the method further comprises:

receiving second indication information;

The configuration information is activated or used according to the second indication information.
The method according to claim 10, wherein the second indication information is used to indicate that the secondary cell group SCG is in a secondary cell group suspension SCG Suspension state.
The method of claim 5 or 6, wherein the method further comprises:

Send third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.
A data transmission method, characterized in that the method comprises:

Sending configuration information to enable the user equipment in the dual-connection DC state to perform, if the secondary cell group SCG is in the secondary cell group SCG Suspension state, switch service data from the secondary cell group SCG according to the configuration information To the primary cell group MCG transmission.
The method of claim 13, wherein the configuration information comprises: switching conditions;

Wherein, the configuration information is used to instruct the user equipment to perform, if it is determined that the handover condition is satisfied, handover the service data from the secondary cell group SCG to the primary cell group MCG for transmission.
The method of claim 13, wherein the configuration information comprises: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG to transmit service data.
The method of claim 13, wherein the configuration information comprises: split bearer Split Bearer configuration information;

The split bearer configuration information of the split bearer includes: secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information;

The configuration information is used to instruct the user equipment to use the secondary cell group SCG radio resources to transmit service data or to use the primary cell group MCG radio resources to transmit service data.
The method of claim 14, wherein the determining that the switching condition is satisfied comprises any one of the following steps:

If the service data volume of the user equipment is less than the data volume threshold, it is determined that the switching condition is satisfied;

If the frequency at which the user equipment receives the service data packets to be transmitted is less than the frequency threshold, it is determined that the switching condition is satisfied.
The method of claim 13, wherein the configuration information is carried by a radio resource control layer RRC reconfiguration message.
The method of claim 13, wherein the method further comprises:

Sending second indication information, so that the user equipment activates or uses the configuration information according to the second indication information.
The method of claim 19, wherein the second indication information is used to indicate that the secondary cell group SCG is in a secondary cell group suspension SCG Suspension state.
The method of claim 13, wherein the method further comprises:

Receive third indication information; the third indication information is used to instruct the user equipment to transmit service data through the secondary cell group SCG.
The method of claim 13, wherein the method further comprises:

Send first indication information; the first indication information is used to instruct to restore the secondary cell group SCG.
A data transmission device, characterized in that the data transmission device comprises: a storage device and a processor,

the storage device for storing program codes;

The processor, when invoking the stored code, is configured to execute the data transmission method according to any one of claims 1-12.
A data transmission device, characterized in that the data transmission device comprises: a storage device and a processor,

the storage device for storing program codes;

The processor, when invoking the stored code, is configured to execute the data transmission method according to any one of claims 13-22.
A data transmission apparatus, characterized in that, the data transmission apparatus is applied in user equipment, and the user equipment is in a dual-connection DC state, and the data transmission apparatus comprises:

A receiving module for receiving configuration information;

A switching module, configured to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in the secondary cell group suspension SCG Suspension state.
A data transmission device, characterized in that the data transmission device comprises:

A sending module, configured to send configuration information, so that the user equipment performs, if the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, then according to the configuration information, switches the service data from the secondary cell group SCG to Primary cell group MCG transmission.
A computer-readable storage medium, characterized in that, the computer-readable storage medium is used for storing a computer program, and the computer program causes a computer to execute the data transmission method according to any one of claims 1-12.
A computer-readable storage medium, characterized in that, the computer-readable storage medium is used for storing a computer program, and the computer program causes a computer to execute the data transmission method according to any one of claims 13-22.
A chip, characterized in that the chip is used to receive configuration information;

If the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.
A chip, characterized in that the chip is used for outputting configuration information, so as to facilitate sending the configuration information, so that a user equipment in a dual-connection DC state executes if the secondary cell group SCG is in secondary cell group suspension SCG Suspension state, then according to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.
A modular device, characterized in that the modular device includes an input interface and a chip module, wherein:

the input interface for receiving configuration information;

The chip module is configured to, if the secondary cell group SCG is in the SCG Suspension state of the secondary cell group, switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information.
A modular device, characterized in that the modular device includes an output interface, wherein:

The output interface is used for outputting configuration information, so as to send the configuration information, so that the user equipment in the dual-connection DC state executes the SCG Suspension state according to the According to the configuration information, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission.