CN114071604B - Data transmission method, device, apparatus and storage medium - Google Patents

Data transmission method, device, apparatus and storage medium Download PDF

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Publication number
CN114071604B
CN114071604B CN202010779735.4A CN202010779735A CN114071604B CN 114071604 B CN114071604 B CN 114071604B CN 202010779735 A CN202010779735 A CN 202010779735A CN 114071604 B CN114071604 B CN 114071604B
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cell group
configuration information
scg
secondary cell
service data
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CN114071604A (en
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徐敏
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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Priority to CN202010779735.4A priority Critical patent/CN114071604B/en
Priority to PCT/CN2021/110535 priority patent/WO2022028477A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application discloses a data transmission method, which is applied to user equipment, wherein the user equipment is in a dual-connection DC state, and the method comprises the following steps: receiving configuration information; and if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, switching the service data from the secondary cell group SCG to a primary cell group MCG for transmission according to the configuration information. By adopting the application, the time delay and the energy consumption of the data transmission of the user equipment can be reduced.

Description

Data transmission method, device, apparatus and storage medium
Technical Field
The present application relates to the field of communications, and in particular, to a data transmission method, apparatus, device, and storage medium.
Background
From the UE (User Equipment) side, the scenario of dual connectivity (Dual Connectivity, DC) involves three different Bearer types, MCG Bearer (Master Cell Group Bearer, primary cell group Bearer), SCG Bearer (Secondary Cell Group Bearer ) and Split Bearer (Split Bearer), respectively. From the network side, these three bearers may be Terminated either at the MN (MN Terminated) or at the SN (SN Terminated). Wherein MN Terminated Bearers (bearer terminated at MN) is terminated at MN (Master Node, master base station) for CN (Core Network) user plane connection, i.e., PDCP (Packet Data Convergence Protocol ) layer at MN; SN Terminated Bearers (bearer terminated at SN) is terminated at SN (Secondary Node, secondary base station) for CN user plane connections, i.e. PDCP layer at SN. On Uu user plane, for different bearer types, the resource is related to the MCG or SCG, i.e. for MCG beacons, only the MCG radio resource is related; for SCG beacons, only the SCG radio resources will be relevant; for Split beer, both the MCG radio resources and the SCG radio resources are related. The Split Bearer includes a Bearer of an MCG (Master Cell Group, primary cell group) branch (leg) and a Bearer of an SCG (Secondary Cell Group ) branch (leg).
Currently, in the case that the SCG is in a suspended state, if there is traffic data to be transmitted on the SCG Bearer or on the SCG branch configured in the Split Bearer, a series of network configurations are needed to activate the SCG, for example: the service data can be transmitted only after the TA (Timing Advance) maintenance of the Primary SCG Cell (Primary SCG Cell, primary secondary Cell) is completed, beam management, channel quality reporting and the like are completed, and the time delay and the energy consumption for transmitting the service data are increased.
Disclosure of Invention
The embodiment of the application provides a data transmission method, device and storage medium, which can reduce the time delay and energy consumption for transmitting service data.
In order to solve the above technical problem, in a first aspect, an embodiment of the present application provides a data transmission method, which is applied to a user equipment, where the user equipment is in a dual-connection DC state, and the method includes:
receiving configuration information;
and if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, switching the service data from the secondary cell group SCG to a primary cell group MCG for transmission according to the configuration information.
In a second aspect, an embodiment of the present application further provides a data transmission method, which is applied to a network device, where the method includes:
And sending configuration information to enable the user equipment in the dual-connection DC state to execute the operation that if the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information.
In a third aspect, an embodiment of the present application further provides a data transmission apparatus, including: a memory device and a processor, wherein the memory device is configured to store data,
the storage device is used for storing program codes;
the processor, when calling the stored code, is configured to perform the data transmission method according to the first aspect.
In a fourth aspect, an embodiment of the present application further provides a data transmission apparatus, including: a memory device and a processor, wherein the memory device is configured to store data,
the storage device is used for storing program codes;
the processor, when calling the stored code, is configured to perform the data transmission method according to the second aspect.
In a fifth aspect, an embodiment of the present application further provides a data transmission device, where the data transmission device is applied to a user equipment, and the user equipment is in a dual-connection DC state, and the data transmission device includes:
the receiving module is used for receiving the configuration information;
And the switching module is used for switching the service data from the secondary cell group SCG to the master cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state.
In a sixth aspect, an embodiment of the present application further provides a data transmission apparatus, where the data transmission apparatus includes:
and the sending module is used for sending configuration information so that the user equipment executes the operation of switching the service data from the secondary cell group SCG to the master cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state.
In a seventh 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, where the computer program causes a computer to execute the data transmission method according to the first aspect.
In an eighth aspect, an embodiment of the present application further provides a computer-readable storage medium for storing a computer program, which causes a computer to execute the data transmission method according to the second aspect.
The embodiment of the application has the following beneficial effects:
When the secondary cell group SCG is in a secondary cell group suspended SCG suspend state, the user equipment can automatically switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information, thereby reducing the time delay and the energy consumption of the data transmission of the user equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a scene diagram of a data transmission method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a data transmission method according to an embodiment of the present application;
fig. 3 is an interactive flow diagram of a data transmission method according to 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 device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of another data transmission device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, in the description and claims of the present application and in the above figures, the terms "first," "second," "third," etc. are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 1 is a schematic diagram of a data transmission method according to an embodiment of the present application. As shown in fig. 1, in this data transmission scenario, a user equipment 101 is in a Dual-Connectivity (DC) state, communicates with a MN (MeNB) 102 and a SN (SeNB) 103, the MN 102 communicates with the SN 103, and both the MN 102 and the SN 103 can communicate with a core network 104. MN 102 sends SCG Suspension Requset (secondary cell group suspension request) to SN 103; SN 103 puts SCG (Secondary Cell Group ) in SCG Suspension state according to received SCG Suspension Requset, and feeds back SCG Suspension Complete (secondary cell group Suspension completed) information to MN 102; the MN 102 sends Indication to Suspend SCG (an indication of suspended secondary cells) to the user equipment according to the information of SCG Suspension Complete; the user equipment enters an SCG suspension state according to Indication to Suspend SCG, and the PSCell (Primary SCG Cell, primary Secondary Cell) configures long-period DRX (Discontinuous Reception ), and each Scell (Secondary Cell) is in a dormant state.
The network device may configure the ue to enter or leave the SCG suspension state through an RRC (Radio Resource Control ) message, or may instruct the ue to enter or leave the SCG suspension state through a MAC CE (Media Access Control Control Element, medium access control layer control element) or Lower Layer Indication (low layer indication information). The Lower Layer Indication may be PHY (physical layer) indication information, DCI (Downlink Control Information ), or the like.
In the embodiment of the application, the SCG Suspension may be SN or SCG deactivation, or may be SN or SCG Suspension.
In the embodiment of the present application, for a user equipment side, if there is service data that needs to be transmitted by an SCG Bearer (Secondary Cell Group Bearer ) or an SCG branch (leg) configured in a Split Bearer form, that is, there is service data that needs to be transmitted through an SCG radio resource, the service data is transmitted by an SCG switching MCG (Master Cell Group, primary cell group) according to configuration information sent by a received network device, that is, the user equipment sends the service data to the MN 102 first, and then the MN 102 forwards the service data to the SN 103, and then the SN 103 may send the service data to the core network 104.
It should be noted that, at present, the Split Bearer may configure the SCG branch or the MCG branch into a Primary Path (Primary Path), that is, if the data volume to be transmitted by the ue is smaller than the transmission data volume threshold, the ue only transmits service data on the Primary Path; in the case that the SCG is in the SCG suspend state, the configuration of the Bearer of the SCG branch in the Split Bearer mode to transmit service data means that the SCG branch of the Split Bearer is configured to be a main path, that is, if the data amount required to be transmitted by the user equipment is less than the transmission data amount threshold, the user equipment only transmits service data on the SCG branch of the Split Bearer, that is, the SCG needs to be activated, for example: the service data can be transmitted only after the TA (Timing Advance) maintenance, beam (Beam) management, channel quality reporting and the like of the PSCell are completed, and the time delay and the energy consumption for transmitting the data are increased.
In the embodiment of the application, if service data which is required to be transmitted by an SCG Bearer (Secondary Cell Group Bearer ) or an SCG branch (leg) configured into a Split Bearer form exists under the condition that the SCG is in an SCG suspend state, the SCG is not activated, but the SCG is switched to be transmitted by the SCG, so that the time delay and the energy consumption for transmitting the service data by activating the SCG are avoided.
Wherein, the traffic data is switched from SCG to MCG, that is, the traffic data is switched from SN 103 to MN 102, that is, the traffic data is switched from the Bearer of the SCG branch of the SCG Bearer and/or Split Bearer to the Bearer of the MCG branch of the MCG Bearer and/or Split Bearer, that is, the RLC (Radio Link Control, radio link control sublayer) Bearer is switched from SCG to MCG, that is, PDCP (Packet Data Convergence Protocol ) routing rule indicates that the data packet is switched from SN 103RLC to MN 102RLC according to the configuration information, that is, the traffic data is switched from using SCG radio resources to using MCG radio resources. Wherein the relevant bearers for transmitting traffic data to be transmitted at the SCG may be one or more. In the embodiment of the application, the plurality refers to at least two.
In the embodiment of the present application, the network device includes MN 102 and SN 103. The configuration information may be sent by the core network 104 to the SN103, by the SN103 directly to the user equipment or by the SN103 through the MN 102; the configuration information can be configured by the MN 102 and sent to the user equipment; the configuration information may also be configured by the SN103 and sent to the user equipment through the MN 102, or configured by the SN103 and sent to the user equipment, and the network device may also configure or send the configuration information to the user equipment in other manners, where the manner in which the network device configures or sends the configuration information to the user equipment is not limited.
In the embodiment of the present application, the configuration information may include: handoff conditions, and/or radio resource configuration information. The radio resource configuration information includes secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information, and/or the radio resource configuration information includes Split Bearer configuration information.
In the embodiment of the present application, if the configuration information includes: and if the switching condition is met, the network equipment instructs the user equipment to execute the following steps through the configuration information: and if the switching condition is determined to be met, switching the service data from the secondary cell group SCG to the primary cell group MCG for transmission.
It should be noted that the configuration information may be used to instruct the ue to perform the switching of the service data from the secondary cell group SCG to the primary cell group MCG for transmission if the SCG is in the suspended state, and further the configuration information may not carry a switching condition.
In the embodiment of the present application, if the configuration information includes: the configuration information is used for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or to transmit service data by using the MCG radio resource of the primary cell group. Specifically, the network device configures one or more related radio bearers for transmitting service data as an SCG bearer, and increases an MCG bearer corresponding to the SCG bearer, and instructs the user device to transmit service data only through one of the SCG bearer and the MCG bearer.
In an embodiment of the present application, the configuration information includes: separating bearing Split beer configuration information; the configuration information is used for indicating the user equipment to use the secondary cell group SCG radio resource to transmit service data or the primary cell group MCG radio resource to transmit service data, namely the Split bearing Split beer configuration information indicates to configure a special configured Split beer, and the special configured Split beer is configured to transmit service data only through one of the SCG radio resource and the MCG radio resource. The Split bearing Bearer configuration information 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. The network device may add indication information to Split Bearer configuration information of any radio Bearer configuration, where the indication information is used to instruct the user device to transmit service data using the secondary cell group SCG radio resource or transmit service data using the primary cell group MCG radio resource, that is, to instruct to transmit service data only through one of the SCG radio resource and the MCG radio resource.
Further, the network device instructs the user device to switch the service data from the secondary cell group SCG to the primary cell group MCG to transmit the service data through the MCG wireless resource when the service data to be transmitted through the SCG wireless resource exists; however, if the handover condition in the configuration information is not satisfied, and/or the condition for activating the secondary cell group is satisfied, 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, activates the SCG, and makes the PSCell in an Activated state and not in a normal state, so that the 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 SCG Activation Complete (secondary cell group activation completed) information back to MN 102; the MN 102 sends Indication to Activation SCG (an indication of activated secondary cell) to the user equipment according to the information of SCG Activation Complete; and the user equipment enters an SCG activation state according to the Indication to Activation SCG, and if TA (Timing Advance) is not maintained, the user equipment initiates a random access process in the PScell to communicate with the SN so as to transmit service data.
It should be noted that, if the SCell (or PSCell) is in a Deactivated state, or referred to as an inactive state, the ue cannot perform operations of transmitting service data, receiving a reference signal, reporting measurement, and the like in the SCell (or PSCell); if the SCell (or PSCell) is Activated and not in the inactive state, service data may be transmitted in the SCell (or PSCell); if the SCell (or PSCell) is in the normal state, the ue may perform CSI (Channel State Information ) measurement and/or Beam management on the SCell (or PSCell), but may not transmit traffic data. Wherein Activated introduces a state of security, mainly for saving energy and quickly recovering data transmission of the SCell (or PSCell).
Further, when the network device receives DL (DownLink) data to be transmitted, it may also determine that SCG is not required to be activated according to a handover condition or according to an actual transmission situation of the network device, and forward the DL data to MN 102 for scheduling through SN 103. The network device may receive DL data sent by the core network 104 to be transmitted to the ue.
In the embodiment of the present application, if the secondary cell group SCG is not in the secondary cell group suspended SCG suspend state, the user equipment and the network equipment both transmit service data through SCG for the configured SCG Bearer or the Split Bearer with special configuration, that is, transmit service data through SN 103, that is, transmit service data through SCG radio resource, that is, transmit service data through the Bearer of the SCG branch in the SCG Bearer or the Split Bearer.
In an embodiment of the present application, the ue includes, but is not limited to, an access terminal, a subscriber unit, a subscriber Station, a Mobile Station (MS), a remote Station, a remote terminal, a Mobile device, a user terminal, a terminal device (Terminal Equipment), a wireless communication device, a user agent, or a user equipment. The user equipment may also be a cellular telephone, a cordless telephone, a session initiation protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, abbreviated WLL) station, a personal digital assistant (Personal Digital Assistant, abbreviated PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved public land mobile network (Public Land Mobile Network, abbreviated PLMN), etc.
In the embodiment of the application, the user equipment communicates with the MN 102 through a Uu interface, the user equipment communicates with the SN 103 through the Uu interface, and the MN 102 communicates with the SN 103 through an Xn interface.
In the embodiment of the application, the double-connection scene where the user equipment is located comprises a same-frequency scene and a different-frequency scene; at least two cells in the cells accessed by the user equipment are provided with base station functions by different gNB (5G new air interface technology). According to the gNB connection to different core networks, the dual connection can be divided into two types, MR-DC (Muti-RAT Dual Connectivity, multi-mode dual connection) with EPC (4G core network) and MR-DC with 5GC (5G core network).
The MN in the MR-DC with EPC is an EUTRA base station (4G base station), the SN is an NR (New Radio) base station, and the corresponding core network is EPC. MR-DC with 5GC includes two classes, 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 corresponding core network is 5GC. In NR-E-UTRA Dual Connectivity, MN is an NR base station, SN is an EUTRA base station, and the corresponding core network is 5GC.
Referring to fig. 2, fig. 2 is a schematic flow chart of a data transmission method according to an embodiment of the present application, and the present specification provides the method operation steps described in the embodiment or the flow chart, but may include more or less operation steps based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. When the terminal or the storage medium product in practice is executed, it may be executed sequentially or in parallel according to the method shown in the embodiment or the drawings. As shown in fig. 2, the data transmission method is applied to a user equipment, where the user equipment is in a dual-connection DC state, and the method includes:
S201: configuration information is received.
If the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, step S202 is executed.
S202: and switching the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information.
In the embodiment of the application, when the secondary cell group SCG is in the secondary cell group suspended SCG Suspension state, the user equipment can automatically switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information, thereby reducing the time delay and the energy consumption of the data transmission of the user equipment.
Correspondingly, the embodiment of the application also provides another data transmission method, which is applied to the network equipment and comprises the following steps:
s21: and sending configuration information to enable the user equipment in the dual-connection DC state to execute the operation that if the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information.
In the embodiment of the application, the network equipment sends the configuration information to the user equipment, so that the user equipment can automatically switch the service data from the secondary cell group SCG to the master cell group MCG for transmission according to the configuration information when the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, thereby reducing the time delay and the energy consumption of the data transmission of the user equipment.
Referring to fig. 3, fig. 3 is an interactive flow chart of a data transmission method according to an embodiment of the present application, where the method operation steps described in the examples or the flow chart are provided, but more or fewer operation steps may be included based on conventional or non-creative labor. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. When the terminal or the storage medium product in practice is executed, it may be executed sequentially or in parallel according to the method shown in the embodiment or the drawings. As shown in fig. 3, the method includes:
s301: and the network equipment sends configuration information to enable the user equipment in the dual-connection DC state to execute the transmission of switching the service data from the secondary cell group SCG to the main cell group MCG according to the configuration information if the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state.
In an embodiment of the present application, the configuration information includes: switching conditions;
and the configuration information is used for indicating the user equipment to execute the transmission of switching the service data from the secondary cell group SCG to the primary cell group MCG if the switching condition is determined to be met.
In the embodiment of the present application, the configuration information is used to instruct the user equipment to execute if the SCG is in a suspended state, and switch 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 handover condition.
In an 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG of the primary cell group.
In the embodiment of the application, the configuration information comprises Split Bearer configuration information;
the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG radio resource of the primary cell group.
In the embodiment of the application, the configuration information is carried by the Radio Resource Control (RRC) reconfiguration message, and the network equipment sends the RRC reconfiguration message to the user equipment, namely, the configuration information is sent to the user equipment.
S302: the user equipment receives the configuration information.
Wherein the user equipment is in a dual connection DC state.
S303: and the network equipment 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 for indicating that the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state.
It should be noted that, step S303 may be performed simultaneously with step S301, and is not limited to being performed after step S301.
S304: the user equipment receives the second indication information.
It should be noted that, the step S304 may be performed simultaneously with the step S302, and is not limited to be performed after the step S302.
S305: and the user equipment activates or uses the configuration information according to the second indication information.
If the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, step S306 is performed.
Wherein, the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, and PSCell and Scells of all SCGs are in a state where transmission of service data is impossible or unsuitable. The state unsuitable for transmitting the service data refers to a state without auxiliary information for transmitting the service data or other states incapable of transmitting the service data.
S306: and 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, the user equipment switches the service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the activated configuration information, or triggers the user equipment to switch the service data from the secondary cell group SCG to the primary cell group MCG for transmission if the second indication information indicates that the configuration information is used.
In the embodiment of the present application, the configuration information includes: switching conditions; and if the switching condition is determined to be met, the user equipment switches the service data from the secondary cell group SCG to the primary cell group MCG for transmission.
Wherein, in case the configuration information includes a handover condition, the configuration information may not include secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information, and/or the configuration information may not include 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 smaller than a data volume threshold, determining that the switching condition is met;
And if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
Wherein, determining whether the service data volume of the user equipment is smaller than a data volume threshold may be: counting the business data volume of the user equipment in a time period of a preset duration, and judging whether the counted business data volume is smaller than a data volume threshold or not; it may also be: and counting the business data volume of the current time frame or the current moment in real time, and judging whether the counted business data volume is smaller than a data volume threshold.
In the embodiment of the present application, the same preset duration may be set for all SCG beacons and/or Split beacons with special configuration, for example: defining a timer which can time each SCG beer and/or specially configured Split beer for a same preset time period; the preset duration may also be set for each bearer, for example: defining a timer for each bearing respectively, wherein each timer is used for timing a preset time period for the corresponding bearing respectively; the Timer may be a MAC Timer (Media Access Control Timer, medium access control layer Timer), or may be another type of Timer, which is not limited herein.
The user equipment receiving the service data packet to be transmitted refers to that the user equipment receives the service data packet to be transmitted to the network equipment. Specifically, the ue may receive a service data packet sent by a higher layer, for example: service data packets sent by the application layer, or: the user equipment may receive a service data packet of a NAS (Non-Access Stratum), etc., to transmit the received service data packet to the network equipment at a later time.
The frequency of receiving the service data packets to be transmitted by the user equipment refers to the number of the service data packets to be transmitted received by the user equipment in unit time.
In the embodiment of the application, by configuring the switching condition, when the SCG beer has a small amount of service data to be transmitted, the service data is switched from the SCG of the auxiliary cell group to the MCG of the main cell group to be transmitted according to the switching condition, thereby saving the SCG resource expenditure and reducing the time delay and the energy consumption of the data transmission of the user equipment.
In the embodiment of the present application, when the configuration information includes configuration information of secondary cell group SCG radio resource and configuration information of primary cell group MCG radio resource, if the user equipment has service data that needs to be transmitted through the SCG radio resource, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission, i.e., the service data is switched from the SCG radio resource to the MCG radio resource for transmission.
Wherein, in case that the configuration information includes secondary cell group SCG radio resource configuration information and primary cell group MCG radio resource configuration information, the configuration information may not include a handover condition.
In the embodiment of the present application, when the configuration information includes Split Bearer configuration information, if the user equipment has service data that needs to be transmitted through the SCG radio resource, the service data is switched from the secondary cell group SCG to the primary cell group MCG for transmission, i.e., the service data is switched from the SCG radio resource to the MCG radio resource for transmission.
Wherein, in the case that the configuration information includes Split Bearer configuration information, the configuration information may not include a handover condition.
S307: the network device sends first indication information.
The first indication information is used for indicating to recover the secondary cell group SCG.
Specifically, the network device sends first indication information to the user device to instruct the user device to recover the secondary cell group SCG, and further recover to transmit service data in the secondary cell group SCG.
If the user equipment receives the first indication information, step S308 is executed;
and/or: if it is determined that the switching condition is not satisfied, step S308 is executed;
And/or: if the condition for activating the secondary cell group SCG is satisfied, step S308 is performed.
It should be noted that, before the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state and the service data is not yet 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 the condition for activating the secondary cell group SCG is 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, i.e., the SCG is directly activated, so as to transmit the service data through the SCG.
S308: and 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 further switches the service data from the primary cell group MCG to the secondary cell group SCG for transmission, i.e. transmits the service data through the secondary cell group SCG.
If step S308 is triggered to be executed by the foregoing determination that the handover condition is not satisfied and/or the foregoing condition that the secondary cell group SCG is activated, step S309 is executed.
S309: the user equipment transmits third indication information.
And the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
Specifically, the user equipment sends third indication information to the network equipment so as to inform the network equipment: and the user equipment transmits service data through the SCG of the secondary cell group.
S310: the network device receives the third indication information.
Specifically, the network device receives third indication information sent by the user device, so as to learn 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 switch the service data from the primary cell group MCG to the secondary cell group SCG for transmission.
In the embodiment of the application, the network equipment sends the configuration information to the user equipment, so that the user equipment can automatically switch the service data from the secondary cell group SCG to the master cell group MCG for transmission according to the configuration information when the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, thereby reducing the time delay and the energy consumption of the data transmission of the user equipment.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a data transmission device according to an embodiment of the present application, and specifically as shown in fig. 4, the data transmission device includes: a storage device 401 and a processor 402; and the data transfer device may further comprise a data interface 403, a user interface 404. Connections between the various hardware may also be made through various types of buses.
Through the data interface 403, the data transmission device may exchange data with other devices such as a terminal and a server; the user interface 404 is configured to implement human-computer interaction between a user and the data transmission device; the user interface 404 may provide a touch screen, physical keys, etc. to enable human-machine interaction between a user and the data transmission device.
The storage device 401 may include a Volatile Memory (RAM), such as a 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), a Solid-State Drive (SSD), etc.; storage 401 may also include a combination of the above 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 hardware chip may be an Application-specific integrated circuit (ASIC), a programmable logic device (Programmable Logic Device, PLD), or the like. The PLD may be a Field programmable gate array (Field-Programmable Gate Array, FPGA), general array logic (Generic Array Logic, GAL), or the like.
For the case that the data transmission device is a user device in a dual connection DC state:
the storage device 401 is used for storing program codes;
the processor 402, when calling the stored code, is configured to receive configuration information;
and if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, switching the service data from the secondary cell group SCG to a primary cell group MCG for transmission according to the configuration information.
In one embodiment, the configuration information includes: switching conditions;
and the configuration information is used for indicating the user equipment to execute the transmission of switching the service data from the secondary cell group SCG to the primary cell group MCG if the switching condition is determined to be met.
In one embodiment, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or transmit service data by using MCG radio resources of the primary cell group.
In one embodiment, the configuration information includes: separating bearing Split beer configuration information;
The Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG radio resource of the primary cell group.
In one 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 one embodiment, the processor 402 is further configured to transmit service data through the secondary cell group SCG if a condition for activating the secondary cell group SCG is met.
In one embodiment, the processor 402 is further configured to switch, if the first indication information is received, service data from the primary cell group MCG to the secondary cell group SCG for transmission; the first indication information is used for indicating to recover the secondary cell group SCG.
In one embodiment, the determining that the handover condition is satisfied includes any one of the following steps:
if the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
And if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
In one embodiment, the configuration information is carried by a radio resource control, RRC, reconfiguration message.
In one embodiment, the processor 402 is further configured to receive second indication information before the switching of service data from the secondary cell group SCG to the primary cell group MCG for transmission according to the configuration information; and activating or using the configuration information according to the second indication information.
In one 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 one embodiment, the processor 402 is further configured to send third indication information; and the third indication information is used for indicating 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 for storing program codes;
the processor 402 is configured to send configuration information when the storage code is invoked, so that the user equipment in the dual-connection DC state performs transmission when the secondary cell group SCG is in the secondary cell group Suspension SCG Suspension state, and switches service data from the secondary cell group SCG to the primary cell group MCG according to the configuration information.
In one embodiment, the configuration information includes: switching conditions;
and the configuration information is used for indicating the user equipment to execute the transmission of switching the service data from the secondary cell group SCG to the primary cell group MCG if the switching condition is determined to be met.
In one embodiment, 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG of the primary cell group.
In one embodiment, the configuration information includes: separating bearing Split beer configuration information;
the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG radio resource of the primary cell group.
In one embodiment, the determining that the handover condition is satisfied includes any one of the following steps:
If the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
and if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
In one embodiment, the configuration information is carried by a radio resource control layer, RRC, reconfiguration message.
In one 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 one 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 one embodiment, the processor 402 is further configured to receive third indication information; and the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
In one embodiment, the processor 402 is further configured to send first indication information; the first indication information is used for indicating to recover the secondary cell group SCG.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a data transmission device provided in an embodiment of the present application, and specifically as shown in fig. 5, the data transmission device is applied to a user equipment, the user equipment is in a dual-connection DC state, and the data transmission device includes:
A receiving module 501, configured to receive configuration information;
and a switching module 502, configured to switch, according to the configuration information, service data from the secondary cell group SCG to the primary cell group MCG for transmission if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state.
In one embodiment, the configuration information includes: switching conditions;
and the configuration information is used for indicating the user equipment to execute the transmission of switching the service data from the secondary cell group SCG to the primary cell group MCG if the switching condition is determined to be met.
In one embodiment, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or transmit service data by using MCG radio resources of the primary cell group.
In one embodiment, the configuration information includes: separating bearing Split beer configuration information;
the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG radio resource of the primary cell group.
In one embodiment, the data transmission device further includes:
and the transmission module is used for transmitting service data through the secondary cell group SCG if the switching condition is not met.
In one embodiment, the transmission module is further configured to transmit service data through the secondary cell group SCG if a condition for activating the secondary cell group SCG is met.
In one embodiment, the switching module 502 is further configured to switch, if the first indication information is received, service data from the primary cell group MCG to the secondary cell group SCG for transmission; the first indication information is used for indicating to recover the secondary cell group SCG.
In one embodiment, the determining that the handover condition is satisfied includes any one of the following steps:
if the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
and if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
In one embodiment, the configuration information is carried by a radio resource control, RRC, reconfiguration message.
In one 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; and activating or using the configuration information according to the second indication information.
In one 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 one embodiment, the data transmission device further includes:
the sending module is used for sending the third indication information; and the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
Referring to fig. 6, fig. 6 is a schematic structural diagram of another data transmission device according to an embodiment of the present application, and specifically as shown in fig. 6, the data transmission device may be applied to a network device, and the data transmission device includes:
and a sending module 601, configured to send configuration information, so that the user equipment performs, if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, switching service data from the secondary cell group SCG to a primary cell group MCG for transmission according to the configuration information.
In one embodiment, the configuration information includes: switching conditions;
and the configuration information is used for indicating the user equipment to execute the transmission of switching the service data from the secondary cell group SCG to the primary cell group MCG if the switching condition is determined to be met.
In one embodiment, 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG of the primary cell group.
In one embodiment, the configuration information includes: separating bearing Split beer configuration information;
the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG radio resource of the secondary cell group or transmit service data by using the MCG radio resource of the primary cell group.
In one embodiment, the determining that the handover condition is satisfied includes any one of the following steps:
If the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
and if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
In one embodiment, the configuration information is carried by a radio resource control layer, RRC, reconfiguration message.
In one 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 second indication information is used to indicate that the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state.
In one embodiment, the data transmission device further includes:
the receiving module is used for receiving the third indication information; and the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
In one embodiment, the sending module 601 is further configured to send first indication information; the first indication information is used for indicating to recover the secondary cell group SCG.
Accordingly, the embodiment of the present application also provides a computer-readable storage medium for storing a computer program for causing a computer to execute the method described in any of steps S201 to S202, steps S302, S304 to S306, and S308 to S309 of the present application. It should be understood that the computer storage medium herein may include a built-in storage medium in the smart terminal, and may include an extended storage medium supported by the smart terminal. The computer storage medium provides a storage space that stores an operating system of the intelligent terminal. Also stored in the memory space are one or more instructions, which may be one or more computer programs (including program code), adapted to be loaded and executed by the processor. The computer storage medium 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 computer storage medium remote from the processor may be present.
Accordingly, the embodiment of the present application also provides a computer-readable storage medium for storing a computer program, where the computer program causes a computer to execute the method described in any of the embodiments of steps S21, S301, S303, S307, S310 of the present application. It should be understood that the computer storage medium herein may include a built-in storage medium in the smart terminal, and may include an extended storage medium supported by the smart terminal. The computer storage medium provides a storage space that stores an operating system of the intelligent terminal. Also stored in the memory space are one or more instructions, which may be one or more computer programs (including program code), adapted to be loaded and executed by the processor. The computer storage medium 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 computer storage medium remote from the processor may be present.
The above disclosure is only a few examples of the present application, and it is not intended to limit the scope of the present application, but it is understood by those skilled in the art that all or a part of the above embodiments may be implemented and equivalents thereof may be modified according to the scope of the present application.

Claims (20)

1. A data transmission method, applied to a user equipment, where the user equipment is in a dual-connection DC state, the method comprising:
receiving configuration information;
if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, switching the service data from the secondary cell group SCG to a master cell group MCG for transmission according to the configuration information;
wherein the configuration information includes: switching conditions; the configuration information is used for indicating the user equipment to execute switching of the service data from the secondary cell group SCG to the primary cell group MCG transmission if the switching condition is determined to be met;
and/or, the configuration information is used for indicating the user equipment to execute that if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to a primary cell group MCG for transmission;
and/or, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or to transmit service data by using MCG radio resources of the primary cell group;
And/or, the configuration information includes: separating bearing Split beer configuration information; the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG wireless resource of the secondary cell group or transmit service data by using the MCG wireless resource of the primary cell group;
before said switching of traffic data from said secondary cell group SCG to primary cell group MCG transmission according to said configuration information, said method further comprises:
receiving second indication information;
and activating or using the configuration information according to the second indication information.
2. The method of claim 1, wherein the method further comprises:
and if the switching condition is not met, transmitting service data through the SCG of the secondary cell group.
3. The method of claim 1, wherein the method further comprises:
and if the condition of activating the secondary cell group SCG is met, transmitting service data through the secondary cell group SCG.
4. The method of claim 1, wherein the method further comprises:
If the first indication information is received, switching the business data from the master cell group MCG to the auxiliary cell group SCG for transmission; the first indication information is used for indicating to recover the secondary cell group SCG.
5. The method according to claim 1 or 2, wherein said determining that the handover condition is met comprises any of the following steps:
if the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
and if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
6. The method of claim 1, wherein the configuration information is carried by a radio resource control, RRC, reconfiguration message.
7. The method of claim 1, wherein the second indication information indicates that the secondary cell group SCG is in a secondary cell group suspended SCG Suspension state.
8. A method according to claim 2 or 3, wherein the method further comprises:
transmitting third indication information; and the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
9. A data transmission method, characterized in that it is applied in a network device, the method comprising:
sending configuration information to enable user equipment in a dual-connection DC state to execute that if a secondary cell group SCG is in a secondary cell group suspended SCG Suspension state, switching service data from the secondary cell group SCG to a primary cell group MCG for transmission according to the configuration information;
wherein the configuration information includes: switching conditions; the configuration information is used for indicating the user equipment to execute switching of the service data from the secondary cell group SCG to the primary cell group MCG transmission if the switching condition is determined to be met;
and/or, the configuration information is used for indicating the user equipment to execute that if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to a primary cell group MCG for transmission;
and/or, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or to transmit service data by using MCG radio resources of the primary cell group;
And/or, the configuration information includes: separating bearing Split beer configuration information; the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG wireless resource of the secondary cell group or transmit service data by using the MCG wireless resource of the primary cell group;
the method further comprises the steps of:
and sending second indication information so that the user equipment activates or uses the configuration information according to the second indication information.
10. The method of claim 9, wherein the determining that the handover condition is satisfied comprises any of the following steps:
if the service data volume of the user equipment is smaller than a data volume threshold, determining that the switching condition is met;
and if the frequency of the user equipment receiving the service data packet to be transmitted is smaller than a frequency threshold, determining that the switching condition is met.
11. The method of claim 9, wherein the configuration information is carried by a radio resource control layer, RRC, reconfiguration message.
12. The method of claim 9, wherein the second indication information indicates that the secondary cell group SCG is in a secondary cell group suspended SCG Suspension state.
13. The method of claim 9, wherein the method further comprises:
receiving third indication information; and the third indication information is used for indicating the user equipment to transmit service data through the secondary cell group SCG.
14. The method of claim 9, wherein the method further comprises:
sending first indication information; the first indication information is used for indicating to recover the secondary cell group SCG.
15. A data transmission apparatus, characterized in that the data transmission apparatus comprises: a memory device and a processor, wherein the memory device is configured to store data,
the storage device is used for storing program codes;
the processor, when invoking the stored program code, is configured to perform the data transmission method of any of claims 1-8.
16. A data transmission apparatus, characterized in that the data transmission apparatus comprises: a memory device and a processor, wherein the memory device is configured to store data,
the storage device is used for storing program codes;
the processor, when invoking the stored program code, is configured to perform the data transmission method of any of claims 9-14.
17. A data transmission device, wherein the data transmission device is applied to a user equipment, the user equipment is in a dual connection DC state, and the data transmission device comprises:
The receiving module is used for receiving the configuration information;
the switching module is used for switching the service data from the secondary cell group SCG to the master cell group MCG for transmission according to the configuration information if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state;
wherein the configuration information includes: switching conditions; the configuration information is used for indicating the user equipment to execute switching of the service data from the secondary cell group SCG to the primary cell group MCG transmission if the switching condition is determined to be met;
and/or, the configuration information is used for indicating the user equipment to execute that if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to a primary cell group MCG for transmission;
and/or, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or to transmit service data by using MCG radio resources of the primary cell group;
and/or, the configuration information includes: separating bearing Split beer configuration information; the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG wireless resource of the secondary cell group or transmit service data by using the MCG wireless resource of the primary cell group;
The receiving module 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 switching module is further configured to activate or use the configuration information according to the second indication information.
18. A data transmission device, characterized in that the data transmission device comprises:
the sending module is used for sending configuration information so that the user equipment executes the operation that if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to a main cell group MCG for transmission according to the configuration information;
wherein the configuration information includes: switching conditions; the configuration information is used for indicating the user equipment to execute switching of the service data from the secondary cell group SCG to the primary cell group MCG transmission if the switching condition is determined to be met;
and/or, the configuration information is used for indicating the user equipment to execute that if the secondary cell group SCG is in a secondary cell group Suspension SCG Suspension state, the service data is switched from the secondary cell group SCG to a primary cell group MCG for transmission;
and/or, 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 for indicating the user equipment to transmit service data by using SCG radio resources of the secondary cell group or to transmit service data by using MCG radio resources of the primary cell group;
And/or, the configuration information includes: separating bearing Split beer configuration information; the Split Bearer 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 for indicating the user equipment to transmit service data by using the SCG wireless resource of the secondary cell group or transmit service data by using the MCG wireless resource of the primary cell group;
the sending module 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.
19. A computer-readable storage medium storing a computer program that causes a computer to execute the data transmission method according to any one of claims 1 to 8.
20. A computer-readable storage medium storing a computer program that causes a computer to execute the data transmission method according to any one of claims 9 to 14.
CN202010779735.4A 2020-08-05 2020-08-05 Data transmission method, device, apparatus and storage medium Active CN114071604B (en)

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