WO2019051775A1

WO2019051775A1 - Method and device for changing bearer type, and computer storage medium

Info

Publication number: WO2019051775A1
Application number: PCT/CN2017/101888
Authority: WO
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-15
Filing date: 2017-09-15
Publication date: 2019-03-21
Anticipated expiration: 2020-03-15

Abstract

La présente invention concerne un procédé et un dispositif destinés à changer un type de support, et un support de stockage informatique. Le procédé comporte les étapes suivantes: un terminal reçoit une signalisation de commande, la signalisation de commande transportant des premières informations d'indication, et les premières informations d'indication étant utilisées pour indiquer au terminal de passer d'un type de support source à un type de support de destination; le terminal libère au moins une entité de RLC correspondant au type de support source et crée au moins une entité de RLC correspondant au type de support de destination sur la base d'une caractéristique de transmission du type de support source et d'une caractéristique de transmission du type de support de destination.The present invention relates to a method and a device for changing a type of medium, and a computer storage medium. The method includes the steps of: a terminal receiving a control signaling, the control signaling carrying first indication information, and the first indication information being used to indicate to the terminal to switch from a source media type to a type of destination medium; the terminal releases at least one RLC entity corresponding to the source media type and creates at least one RLC entity corresponding to the destination media type based on a transmission characteristic of the source media type and a transmission of the destination media type.

Description

Method and device for changing bearer type, computer storage medium

Technical field

本发明涉及移动通信领域，尤其涉及一种改变承载类型的方法及装置、计算机存储介质。The present invention relates to the field of mobile communications, and in particular, to a method and apparatus for changing a bearer type, and a computer storage medium.

Background technique

在无线通信系统中，由于单个基站的带宽资源和覆盖范围有限，因此需要不同类型或相同类型的基站协同组网，从而集中多个小区或者基站的无线资源来为用户提供服务，更容易满足用户的容量需求和覆盖需求，这种方式通常称之为多连接。双连接(DC，Dual Connectivity)就是一种常用的多连接方式。In a wireless communication system, since a single base station has limited bandwidth resources and coverage, different types or the same type of base stations are required to cooperate with each other, thereby concentrating radio resources of multiple cells or base stations to provide services for users, and it is easier to satisfy users. Capacity requirements and coverage requirements, which are often referred to as multi-connections. Dual Connectivity (DC) is a common multi-connection method.

在DC场景下，用户可以同时保持与两个基站的连接，在这种场景下，用户可以单独接收一个基站的数据，也可以同时接收两个基站的数据。根据基站为用户提供服务方式的不同，用户的承载可以分为不同的类型，例如：主小区群承载(MCG bearer)、辅小区群承载(SCG bearer)、分流承载(Split bearer)。对于某个用户而言，其所具有的承载类型可以从一个承载类型改变到另一个承载类型，也即某个用户发生了承载类型的改变。In the DC scenario, the user can maintain the connection with two base stations at the same time. In this scenario, the user can receive data of one base station separately or receive data of two base stations at the same time. The bearers of the user can be classified into different types according to the manner in which the base station provides services for the user, for example, a primary cell group bearer (MCG bearer), a secondary cell group bearer (SCG bearer), and a split bearer (Split bearer). For a certain user, the bearer type that it has can be changed from one bearer type to another bearer type, that is, a user has changed the bearer type.

对于某个用户的承载而言，其承载可以支持数据复制型传输，对应的分组数据汇聚协议(PDCP，Packet Data Convergence Protocol)层具有复制数据功能，通过PDCP层使复制的两份数据分别传输到两个无线链路控制协议(RLC，Radio Link Control)实体，而后在不同的物理层聚合载波上进行传输，这种方案也可以称为载波聚合(CA，Carrier Aggregation)复制(duplication)。For a user's bearer, the bearer can support the data replication type transmission, and the corresponding Packet Data Convergence Protocol (PDCP) layer has the function of copying data, and the duplicated data is separately transmitted to the PDCP layer. Two Radio Link Control (RLC) entities are then transmitted on different physical layer aggregation carriers. This scheme can also be called Carrier Aggregation (CA) duplication.

目前研究的承载类型改变并没有考虑到CA dulication的情况，如何结合CA dulication来实现承载类型的改变是有待解决的问题。The current study of the type of bearer change does not take into account the situation of CA dulication, how to tie The CA dulication to achieve the change of bearer type is a problem to be solved.

发明内容Summary of the invention

为解决上述技术问题，本发明实施例提供了一种改变承载类型的方法及装置、计算机存储介质。To solve the above technical problem, an embodiment of the present invention provides a method and apparatus for changing a bearer type, and a computer storage medium.

本发明实施例提供的改变承载类型的方法，包括：The method for changing a bearer type provided by the embodiment of the present invention includes:

终端接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型；The terminal receives the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，和/或创建所述目标承载类型对应的至少一个RLC实体。Desiring, by the terminal, at least one RLC entity corresponding to the source bearer type, and/or creating at least one RLC entity corresponding to the target bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type .

本发明实施例中，所述控制信令还携有第二指示信息，所述第二指示信息用于指示所述目标承载类型是否支持数据复制型传输。In the embodiment of the present invention, the control signaling further carries the second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission.

本发明实施例中，所述源承载类型支持数据复制型传输，所述目标承载类型不支持数据复制型传输；或者，In the embodiment of the present invention, the source bearer type supports data copy type transmission, and the target bearer type does not support data copy type transmission; or

所述源承载类型不支持数据复制型传输，所述目标承载类型支持数据复制型传输；或者，The source bearer type does not support data copy type transmission, and the target bearer type supports data copy type transmission; or

所述源承载类型支持数据复制型传输，所述目标承载类型支持数据复制型传输；或者，The source bearer type supports data copy type transmission, and the target bearer type supports data copy type transmission; or

所述源承载类型不支持数据复制型传输，所述目标承载类型不支持数据复制型传输。The source bearer type does not support data copy type transmission, and the target bearer type does not support data copy type transmission.

本发明实施例中，所述源承载类型为非分流负载(Non-Split bearer)；In the embodiment of the present invention, the source bearer type is a non-splitting bearer (Non-Split bearer);

所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，包括：And the releasing, by the terminal, the at least one RLC entity corresponding to the source bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type, including:

如果所述源承载类型支持数据复制型传输，则判断所述目标承载类型是否为分流负载(Split bearer)； If the source bearer type supports data replication type transmission, determining whether the target bearer type is a split bearer;

如果所述目标承载类型是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放一个RLC实体；If the target bearer type is the split bearer, releasing one RLC entity from two RLC entities corresponding to the source bearer type;

如果所述目标承载类型不是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放两个RLC实体。And if the target bearer type is not the split bearer, releasing two RLC entities from two RLC entities corresponding to the source bearer type.

本发明实施例中，所述目标承载类型能够支持数据复制型传输或者不支持数据复制型传输。In the embodiment of the present invention, the target bearer type can support data copy type transmission or does not support data copy type transmission.

本发明实施例中，所述目标承载类型为Non-Split bearer；In the embodiment of the present invention, the target bearer type is a Non-Split bearer;

所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，创建所述目标承载类型对应的至少一个RLC实体，包括：The terminal is configured to create at least one RLC entity corresponding to the target bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type, including:

如果所述目标承载类型支持数据复制型传输，则判断所述源承载类型是否为Split bearer；If the target bearer type supports data replication type transmission, determining whether the source bearer type is a Split bearer;

如果所述源承载类型是所述Split bearer，则创建所述目标承载类型对应的一个RLC实体；If the source bearer type is the split bearer, create one RLC entity corresponding to the target bearer type;

如果所述源承载类型不是所述Split bearer，则创建所述目标承载类型对应的两个RLC实体。If the source bearer type is not the split bearer, two RLC entities corresponding to the target bearer type are created.

本发明实施例中，所述源承载类型能够支持数据复制型传输或者不支持数据复制型传输。In the embodiment of the present invention, the source bearer type can support data copy type transmission or does not support data copy type transmission.

本发明实施例提供的改变承载类型的装置包括：The device for changing the bearer type provided by the embodiment of the present invention includes:

接收单元，配置为接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型；The receiving unit is configured to receive the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

承载类型改变单元，配置为基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，和/或创建所述目标承载类型对应的至少一个RLC实体。a bearer type change unit, configured to release at least one RLC entity corresponding to the source bearer type, and/or create a target bearer type corresponding to the transport feature of the source bearer type and the transport feature of the target bearer type At least one RLC entity.

本发明实施例中，所述控制信令还携有第二指示信息，所述第二指示信息用于指示所述目标承载类型是否支持数据复制型传输。 In the embodiment of the present invention, the control signaling further carries the second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission.

本发明实施例中，所述源承载类型为Non-Split bearer；In the embodiment of the present invention, the source bearer type is a Non-Split bearer;

所述承载类型改变单元包括：The bearer type changing unit includes:

第一判断子单元，配置为如果所述源承载类型支持数据复制型传输，则判断所述目标承载类型是否为Split bearer；a first determining subunit, configured to determine, if the source bearer type supports data replication type transmission, whether the target bearer type is a Split bearer;

释放子单元，配置为如果所述目标承载类型是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放一个RLC实体；如果所述目标承载类型不是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放两个RLC实体。And releasing the subunit, configured to release one RLC entity from the two RLC entities corresponding to the source bearer type if the target bearer type is the split bearer; if the target bearer type is not the Split bearer, Two RLC entities are released from two RLC entities corresponding to the source bearer type.

所述承载类型改变单元包括：The bearer type changing unit includes:

第二判断子单元，配置为如果所述目标承载类型支持数据复制型传输，则判断所述源承载类型是否为Split bearer；a second determining sub-unit, configured to determine whether the source bearer type is a Split bearer if the target bearer type supports data replication type transmission;

创建子单元，配置为如果所述源承载类型是所述Split bearer，则创建所述目标承载类型对应的一个RLC实体；如果所述源承载类型不是所述Split bearer，则创建所述目标承载类型对应的两个RLC实体。 Creating a sub-unit, configured to: if the source bearer type is the split bearer, create one RLC entity corresponding to the target bearer type; if the source bearer type is not the split bearer, create the target bearer type Corresponding two RLC entities.

本发明实施例提供的计算机存储介质，其上存储有计算机可执行指令，该计算机可执行指令被处理器执行时实现上述的改变承载类型的方法。The computer storage medium provided by the embodiment of the present invention has stored thereon computer executable instructions, and the computer executable instructions are implemented by the processor to implement the method for changing the bearer type.

本发明实施例的技术方案中，终端接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型；所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个实体，和/或创建所述目标承载类型对应的至少一个RLC实体。采用本发明实施例的技术方案，能够在双连接架构中结合CA dulication的情况实现承载类型的改变，完善了双连接的应用场景。In the technical solution of the embodiment of the present invention, the terminal receives the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type; And the terminal is configured to release at least one entity corresponding to the source bearer type, and/or create at least one RLC entity corresponding to the target bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type. With the technical solution of the embodiment of the present invention, the change of the bearer type can be implemented in the dual-connection architecture in combination with the CA dulication, and the application scenario of the dual connectivity is improved.

DRAWINGS

此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

图1为DC场景下的协议结构示意图；FIG. 1 is a schematic diagram of a protocol structure in a DC scenario;

图2为CA duplication场景下的协议结构示意图；2 is a schematic structural diagram of a protocol in a CA duplication scenario;

图3为本发明实施例的改变承载类型的方法的流程示意图；FIG. 3 is a schematic flowchart of a method for changing a bearer type according to an embodiment of the present invention;

图4为本发明实施例的承载类型改变的协议结构示意图一；4 is a schematic structural diagram 1 of a protocol for changing a bearer type according to an embodiment of the present invention;

图5为本发明实施例的承载类型改变的协议结构示意图二；FIG. 5 is a schematic structural diagram 2 of a protocol for changing a bearer type according to an embodiment of the present invention;

图6为本发明实施例的承载类型改变的协议结构示意图三；6 is a schematic structural diagram 3 of a protocol for changing a bearer type according to an embodiment of the present invention;

图7为本发明实施例的承载类型改变的协议结构示意图四；FIG. 7 is a schematic structural diagram 4 of a protocol for changing a bearer type according to an embodiment of the present invention;

图8为本发明实施例的改变承载类型的装置的结构组成示意图一；FIG. 8 is a first schematic structural diagram of a device for changing a bearer type according to an embodiment of the present invention; FIG.

图9为本发明实施例的改变承载类型的装置的结构组成示意图二；FIG. 9 is a second structural diagram of a device for changing a bearer type according to an embodiment of the present invention; FIG.

图10为本发明实施例的终端的结构组成示意图。 FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention.

Detailed ways

为了能够更加详尽地了解本发明实施例的特点与技术内容，下面结合附图对本发明实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本发明实施例。The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

图1为DC场景下的协议结构示意图，如图1所示，MN代表网络侧的主节点(Master Node)，SN代表网络侧的辅节点(Slave Node)。在一实施方式，MN为长期演进(LTE，Long Term Evolution)系统，SN为NR(New Radio)系统；在另一实施方式中，MN为NR系统，SN为LTE系统；在又一实施方式中，MN为NR系统，SN也为NR系统。值得注意的是，MN和SN代表了两个不同的网络节点，这两个不同的网络节点的网络类型可以不同，也可以相同。Figure 1 is a schematic diagram of a protocol structure in a DC scenario. As shown in Figure 1, MN represents a master node on the network side, and SN represents a slave node on the network side. In an embodiment, the MN is a Long Term Evolution (LTE) system, and the SN is an NR (New Radio) system. In another embodiment, the MN is an NR system, and the SN is an LTE system. In still another embodiment, MN is the NR system and SN is also the NR system. It is worth noting that MN and SN represent two different network nodes, and the network types of the two different network nodes may be different or the same.

在DC架构中，用户可以同时保持与MN和SN的连接，其中，MN与SN之间通过X2接口实现交互。DC场景下的协议结构如图1所示，在MN和SN侧，都具有PDCP层、RLC层、媒体接入控制(MAC，Media Access Control)层。对于某个用户而言，其可以保持任意一种承载类型，以下对用户的承载类型进行具体地解释说明：In the DC architecture, the user can maintain a connection with the MN and the SN at the same time, wherein the MN and the SN interact through the X2 interface. As shown in FIG. 1 , the protocol structure in the DC scenario has a PDCP layer, an RLC layer, and a Media Access Control (MAC) layer on both the MN and the SN side. For a user, it can maintain any type of bearer. The following describes the user's bearer type:

1)对于数据承载而言，承载类型包括：1) For data bearers, the bearer types include:

MCG bearer：承载的无线协议仅位于MCG；MCG bearer: The wireless protocol carried is only located in the MCG;

MCG split bearer：承载的无线协议在MN进行分割，同时位于MCG和SCG；MCG split bearer: the bearer wireless protocol is split in the MN, and is located at the MCG and the SCG;

SCG bearer：承载的无线协议仅位于SCG；SCG bearer: The wireless protocol carried is only located in the SCG;

SCG split bearer：承载的无线协议在SN进行分割，同时位于SCG和MCG。SCG split bearer: The bearer's wireless protocol is split at the SN and is located at both the SCG and the MCG.

2)对于信令承载而言，承载类型包括：2) For signaling bearers, the bearer types include:

MCG SRB：MN和UE之间的信令承载(SRB，Signalling Radio Bearers)； MCG SRB: Signaling bearer (SRB, Signaling Radio Bearers) between the MN and the UE;

MCG split SRB：MN和UE之间的SRB，其中，UE支持通过SN复制无线资源控制(RRC，Radio Resource Control)协议数据单元(PDU，Protocol Data Unit)；MCG split SRB: SRB between the MN and the UE, where the UE supports the RRC (Radio Resource Control) Protocol Data Unit (PDU) through the SN;

SCG SRB：SN和UE之间的SRB。SCG SRB: SRB between the SN and the UE.

下面结合数据承载的各个承载类型对协议栈的实现过程进行详细描述。The implementation process of the protocol stack is described in detail below in conjunction with each bearer type of the data bearer.

1)MCG bearer：1) MCG bearer:

MCG bearer的传输通道如图1所示，MCG bearer首先经过MN PDCP层，MN PDCP层对MCG bearer处理后传输至MN RLC层，MN RLC层对MCG bearer处理后传输至MN MAC层，MN MAC层对MCG bearer处理后将MCG bearer发送给用户。The transmission channel of the MCG bearer is shown in Figure 1. The MCG bearer first passes through the MN PDCP layer. The MN PDCP layer processes the MCG bearer and transmits it to the MN RLC layer. The MN RLC layer processes the MCG bearer and transmits it to the MN MAC layer. The MN MAC layer After processing the MCG bearer, the MCG bearer is sent to the user.

2)MCG split bearer：2) MCG split bearer:

MCG split bearer的传输通道如图1所示，MCG split bearer首先经过MN PDCP层，MN PDCP层对MCG split bearer进行处理的过程中会对MCG split bearer进行分割，分割成两部分bearer，其中：第一部分bearer传输至MN RLC层，MN RLC层对第一部分bearer处理后传输至MN MAC层，MN MAC层对第一部分bearer处理后将第一部分bearer发送给用户；第二部分bearer传输至SN中的SN RLC层，SN RLC层对第二部分bearer处理后传输至SN MAC层，SN MAC层对第二部分bearer处理后将第二部分bearer发送给用户。The transmission channel of the MCG split bearer is as shown in Figure 1. The MCG split bearer first passes through the MN PDCP layer, and the MN PDCP layer processes the MCG split bearer to split the MCG split bearer into two parts, where: A part of the bearer is transmitted to the MN RLC layer, and the MN RLC layer processes the first part of the bearer and transmits it to the MN MAC layer. The MN MAC layer processes the first part of the bearer and sends the first part of the bearer to the user; the second part of the bearer transmits to the SN in the SN. The RLC layer, the SN RLC layer processes the second part bearer and transmits it to the SN MAC layer, and the SN MAC layer processes the second part bearer and sends the second part bearer to the user.

3)SCG bearer：3) SCG bearer:

SCG bearer的传输通道如图1所示，SCG bearer首先经过SN PDCP层，SN PDCP层对SCG bearer处理后传输至SN RLC层，SN RLC层对SCG bearer处理后传输至SN MAC层，SN MAC层对SCG bearer处理后将SCG bearer发送给用户。 The transmission channel of the SCG bearer is shown in Figure 1. The SCG bearer first passes through the SN PDCP layer. The SN PDCP layer processes the SCG bearer and transmits it to the SN RLC layer. The SN RLC layer processes the SCG bearer and transmits it to the SN MAC layer. The SN MAC layer. Send the SCG bearer to the user after processing the SCG bearer.

4)SCG split bearer：4) SCG split bearer:

SCG split bearer的传输通道如图1所示，SCG split bearer首先经过SN PDCP层，SN PDCP层对SCG split bearer进行处理的过程中会对SCG split bearer进行分割，分割成两部分bearer，其中：第一部分bearer传输至SN RLC层，SN RLC层对第一部分bearer处理后传输至SN MAC层，SN MAC层对第一部分bearer处理后将第一部分bearer发送给用户；第二部分bearer传输至MN中的MN RLC层，MN RLC层对第二部分bearer处理后传输至MN MAC层，MN MAC层对第二部分bearer处理后将第二部分bearer发送给用户。The transmission channel of the SCG split bearer is shown in Figure 1. The SCG split bearer first passes through the SN PDCP layer, and the SN PDCP layer processes the SCG split bearer to split the SCG split bearer into two parts, where: A part of the bearer is transmitted to the SN RLC layer, and the SN RLC layer processes the first part of the bearer and transmits it to the SN MAC layer. The SN MAC layer processes the first part of the bearer and then sends the first part of the bearer to the user. The second part of the bearer transmits to the MN in the MN. The RLC layer, the MN RLC layer processes the second part bearer and transmits it to the MN MAC layer, and the MN MAC layer processes the second part bearer and sends the second part bearer to the user.

本领域技术人员应当理解，图1所示的协议结构不仅适用在网络侧，也适用在用户侧，也即终端侧，终端的协议结构与网络的协议结构是相对应的。It should be understood by those skilled in the art that the protocol structure shown in FIG. 1 is applicable not only on the network side but also on the user side, that is, on the terminal side, and the protocol structure of the terminal corresponds to the protocol structure of the network.

本发明实施例中，用户的承载类型可以相互转变，具体如下：In the embodiment of the present invention, the bearer types of the users may be mutually changed, as follows:

1)对于数据承载而言，具有如下类型转变：1) For data bearing, there are the following types of transitions:

MCG bearer与MCG split bearer之间的相互转变；The mutual transformation between the MCG bearer and the MCG split bearer;

MCG bearer与SCG bearer之间的相互转变；The mutual transformation between MCG bearer and SCG bearer;

MCG bearer与SCG split bearer之间的相互转变；The mutual transformation between the MCG bearer and the SCG split bearer;

SCG bearer与SCG split bearer之间的相互转变；The mutual transformation between SCG bearer and SCG split bearer;

MCG bearer向MCG bearer的转变；MCG bearer's transition to MCG bearer;

SCG bearer向SCG bearer的转变；SCG bearer's transition to SCG bearer;

MCG split bearer向MCG split bearer的转变；MCG split bearer's transition to MCG split bearer;

SCG split bearer向SCG split bearer的转变。SCG split bearer's transition to SCG split bearer.

2)对于信令承载而言，具有如下类型转变：2) For signaling bearers, there are the following types of transitions:

MCG SRB与MCG split SRB之间的相互转变。Mutual transition between MCG SRB and MCG split SRB.

图2为CA duplication场景下的协议结构示意图，在CA duplication场景下，PDCP层具有复制数据功能，如图2所示，PDCP服务数据单元(SDU，Service Data Uint)传输至PDCP层，由于PDCP层配置有复制数据功能，因而PDCP层可以将处理得到的PDCP PDU复制一份，得到Duplicated PDCP PDU，之后，将PDCP PDU传输至RLC实体(Entity)a，将Duplicated PDCP PDU传输至RLC Entity b，这里，RLC Entity a和RLC Entity b分别对应两个不同的逻辑信道，通过两个RLC Entity分别对两份数据进行处理后再通过MAC层实现将两份数据在不同的物理层聚合载波上传输(如图2中的Physical Carrier1和Physical Carrier2)，从而达到频率分集增益以提高数据传输可靠性。Figure 2 is a schematic diagram of the protocol structure in the CA duplication scenario, in the CA duplication field. In the scenario, the PDCP layer has the function of copying data. As shown in Figure 2, the PDCP Service Data Unit (SDU) is transmitted to the PDCP layer. Since the PDCP layer is configured with the function of copying data, the PDCP layer can process the PDCP. The PDU is duplicated to obtain the Duplicated PDCP PDU. After that, the PDCP PDU is transmitted to the RLC entity (Entity) a, and the Duplicated PDCP PDU is transmitted to the RLC Entity b. Here, the RLC Entity a and the RLC Entity b respectively correspond to two different logics. The channel is processed by two RLC Entities, and then the two data are transmitted on different physical layer aggregation carriers (such as Physical Carrier1 and Physical Carrier2 in FIG. 2) through the MAC layer, thereby achieving frequency diversity. Gain to improve data transmission reliability.

上述图1的方案中，对于MCG bearer和SCG bearer而言，一个PDCP实体下对应一个RLC实体，并没有考虑到CA duplication的场景，也即没有考虑到一个PDCP实体下对应两个RLC实体的情况，本发明实施例的技术方案能够结合CA duplication实现承载类型的改变。In the foregoing scheme of FIG. 1, for the MCG bearer and the SCG bearer, one PDCP entity corresponds to one RLC entity, and the CA duplication scenario is not considered, that is, the situation corresponding to two RLC entities under one PDCP entity is not considered. The technical solution of the embodiment of the present invention can implement a change of a bearer type in combination with CA duplication.

本发明实施例的以下技术方案均以承载为数据承载为例来解释承载类型的改变，信令承载的承载类型的改变也同样适应于本发明实施例的技术方案，其中涉及到的承载类型包括：MCG bearer、MCG split bearer、SCG bearer、SCG split bearer，其中，MCG bearer和SCG bearer均对应网络侧的一个网络节点，MCG bearer对应MN，SCG bearer对应SN；MCG split bearer和SCG split bearer统称为Split bearer，Split bearer对应网络侧的两个网络节点，也即MN和SN。The following technical solutions of the embodiments of the present invention use the bearer as a data bearer as an example to explain the change of the bearer type, and the change of the bearer type of the signaling bearer is also applicable to the technical solution of the embodiment of the present invention, where the bearer type involved includes MCG bearer, MCG split bearer, SCG bearer, SCG split bearer, where MCG bearer and SCG bearer correspond to one network node on the network side, MCG bearer corresponds to MN, SCG bearer corresponds to SN; MCG split bearer and SCG split bearer are collectively referred to as Split bearer, Split bearer corresponds to two network nodes on the network side, namely MN and SN.

图3为本发明实施例的改变承载类型的方法的流程示意图，如图3所示，所述改变承载类型的方法包括以下步骤：FIG. 3 is a schematic flowchart of a method for changing a bearer type according to an embodiment of the present invention. As shown in FIG. 3, the method for changing a bearer type includes the following steps:

步骤301：终端接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型。Step 301: The terminal receives the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type.

本发明实施例中，承载类型的改变可以但不局限于通过以下方式触发： In the embodiment of the present invention, the change of the bearer type may be, but is not limited to, triggered by:

方式一：终端在移动的过程中，与MN和SN的距离不断发生变化。终端距离MN较近时，对应的承载类型为MCG bearer；终端位于MN和SN之间时，对应的承载类型为Split bearer；终端距离SN较近时，对应的承载类型为SCG bearer。进一步，终端从距离MN较近移动到MN和SN之间时，对应的承载类型由MCG bearer切换到Split bearer(具体为MCG split bearer)；终端从MN和SN之间移动到距离SN较近时，对应的承载类型由Split bearer切换到SCG bearer。反之，终端从距离SN较近移动到MN和SN之间时，对应的承载类型由SCG bearer切换到Split bearer(具体为SCG split bearer)；终端从MN和SN之间移动到距离MN较近时，对应的承载类型由Split bearer切换到MCG bearer。Manner 1: During the movement of the terminal, the distance from the MN and the SN constantly changes. When the terminal is located closer to the MN, the corresponding bearer type is the MCG bearer; when the terminal is located between the MN and the SN, the corresponding bearer type is the split bearer; when the terminal is closer to the SN, the corresponding bearer type is the SCG bearer. Further, when the terminal moves from the MN to the MN and the SN, the corresponding bearer type is switched from the MCG bearer to the split bearer (specifically, the MCG split bearer); when the terminal moves from the MN and the SN to the distance SN The corresponding bearer type is switched from the Split bearer to the SCG bearer. On the other hand, when the terminal moves from the SN to the SN and the SN, the corresponding bearer type is switched from the SCG bearer to the Split bearer (specifically, the SCG split bearer); when the terminal moves from the MN to the SN to be closer to the MN The corresponding bearer type is switched from the Split bearer to the MCG bearer.

方式二：MN和SN之间为了实现某种网络策略(如负载均衡策略)，调整终端的承载类型，例如：初始时终端的承载类型为MCG bearer，当MN的负载逐渐增大时，可以将该终端的承载类型由MCG bearer变换为Split bearer，从而通过MN和SN共同为终端提供服务，实现负载的均衡。Manner 2: In order to implement a network policy (such as a load balancing policy), the MN and the SN adjust the bearer type of the terminal. For example, the bearer type of the terminal is MCG bearer. When the load of the MN is gradually increased, the MN and the SN may The bearer type of the terminal is changed from the MCG bearer to the split bearer, so that the MN and the SN jointly provide services for the terminal to achieve load balancing.

网络侧确定出终端需要改变承载类型时，向终端发送控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型。终端接收到控制信令后，进行承载类型的改变，即：从源承载类型改变到目标承载类型。When the network side determines that the terminal needs to change the bearer type, the control signaling is sent to the terminal, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer. Types of. After receiving the control signaling, the terminal changes the bearer type, that is, changes from the source bearer type to the target bearer type.

步骤302：所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，和/或创建所述目标承载类型对应的至少一个RLC实体。Step 302: The terminal releases at least one RLC entity corresponding to the source bearer type, and/or creates at least one corresponding to the target bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type. An RLC entity.

本发明实施例中，所述控制信令还携有第二指示信息，所述第二指示信息用于指示所述目标承载类型是否支持数据复制型传输(也即CA duplication)。In the embodiment of the present invention, the control signaling further carries the second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission (ie, CA duplication).

本发明实施例的DC架构结合了CA duplication的情况，因此，源承载类型和目标承载类型具有以下三种传输特征组合：The DC architecture of the embodiment of the present invention combines the case of CA duplication, and therefore, the source bearer Type and target bearer types have the following three combinations of transport characteristics:

1)所述源承载类型支持数据复制型传输，所述目标承载类型不支持数据复制型传输；1) The source bearer type supports data replication type transmission, and the target bearer type does not support data replication type transmission;

2)所述源承载类型不支持数据复制型传输，所述目标承载类型支持数据复制型传输；2) the source bearer type does not support data copy type transmission, and the target bearer type supports data copy type transmission;

3)所述源承载类型支持数据复制型传输，所述目标承载类型支持数据复制型传输。3) The source bearer type supports data copy type transmission, and the target bearer type supports data copy type transmission.

此外，源承载类型和目标承载类型还具有以下传输特征：In addition, the source bearer type and the target bearer type also have the following transport characteristics:

4)所述源承载类型不支持数据复制型传输，所述目标承载类型不支持数据复制型传输。4) The source bearer type does not support data copy type transmission, and the target bearer type does not support data copy type transmission.

这里，支持数据复制型传输的承载类型可以是：MCG bearer、SCG bearer、Split bearer。不支持数据复制型传输的承载类型可以是：MCG bearer、SCG bearer、Split bearer。Here, the bearer type supporting the data copy type transmission may be: MCG bearer, SCG bearer, Split bearer. The bearer types that do not support data replication type transmission may be: MCG bearer, SCG bearer, and split bearer.

对于源承载类型而言：所述源承载类型为Non-Split bearer；所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，包括：For the source bearer type, the source bearer type is a Non-Split bearer; the terminal releases at least one corresponding to the source bearer type based on the transmission characteristics of the source bearer type and the transmission feature of the target bearer type RLC entities, including:

如果所述源承载类型支持数据复制型传输，则判断所述目标承载类型是否为Split bearer；If the source bearer type supports the data replication type transmission, determining whether the target bearer type is a Split bearer;

这里，所述目标承载类型是所述Split bearer或不是所述Split bearer时，所述目标承载类型能够支持数据复制型传输或者不支持数据复制型传输。Here, when the target bearer type is the Split bearer or not the Split bearer, the target bearer type can support data copy type transmission or does not support data copy type transmission.

对于目标承载类型而言：所述目标承载类型为Non-Split bearer；所述终端基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，创建所述目标承载类型对应的至少一个RLC实体，包括：For the target bearer type: the target bearer type is a Non-Split bearer; And the terminal is configured to create, according to the transmission feature of the source bearer type and the transmission feature of the target bearer type, the at least one RLC entity corresponding to the target bearer type, including:

这里，所述源承载类型是所述Split bearer或不是所述Split bearer时，所述源承载类型能够支持数据复制型传输或者不支持数据复制型传输。Here, when the source bearer type is the Split bearer or not the Split bearer, the source bearer type can support data copy type transmission or does not support data copy type transmission.

以下结合具体应用示例对本发明实施例的技术方案做进一步详细描述。The technical solutions of the embodiments of the present invention are further described in detail below with reference to specific application examples.

应用示例一Application example one

如图4所示，本示例中，源承载类型支持数据复制型传输，也即源承载类型为MCG bearer或SCG bearer(以下说明以源承载类型为MCG bearer为例)，目标承载类型是Split bearer，这种场景下：由于源承载类型支持数据复制型传输，因此，源承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应MN)，分别为RLC Entity a和RLC Entity b；由于目标承载类型是Split bearer，因此，目标承载类型的PDCP层也对应两个RLC实体(一个RLC实体对应MN，另一个RLC实体对应SN)，分别为RLC Entity a和RLC Entity c。可见，在实现承载类型切换时，需要释放源承载类型对应的RLC Entity b，并创建目标承载类型对应的RLC Entity c。As shown in Figure 4, in this example, the source bearer type supports data replication type transmission, that is, the source bearer type is MCG bearer or SCG bearer (the following description uses the source bearer type as MCG bearer as an example), and the target bearer type is Split bearer. In this scenario, the source bearer type supports the data replication type transmission. Therefore, the PDCP layer of the source bearer type corresponds to two RLC entities (both RLC entities correspond to MN), which are respectively RLC Entity a and RLC Entity b; The target bearer type is a split bearer. Therefore, the PDCP layer of the target bearer type also corresponds to two RLC entities (one RLC entity corresponds to the MN and the other RLC entity corresponds to the SN), which are RLC Entity a and RLC Entity c, respectively. It can be seen that, when the bearer type switching is implemented, the RLC Entity b corresponding to the source bearer type needs to be released, and the RLC Entity c corresponding to the target bearer type is created.

应用示例二Application example two

如图5所示，本示例中，源承载类型支持数据复制型传输，也即源承载类型为MCG bearer或SCG bearer(以下说明以源承载类型为MCG bearer 为例)，目标承载类型不是Split bearer，也即目标承载类型为SCG bearer或MCG bearer(以下说明以目标承载类型为SCG bearer为例)，这种场景下：由于源承载类型支持数据复制型传输，因此，源承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应MN)，分别为RLC Entity a和RLC Entity b；由于目标承载类型是SCG bearer，因此，目标承载类型的PDCP层可以对应一个RLC实体，也可以对应两个RLC实体，这取决于目标承载类型是否支持数据复制型传输，如果目标承载类型不支持数据复制型传输，则目标承载类型的PDCP层对应一个RLC实体(该RLC实体对应SN)，为RLC Entity c；如果目标承载类型支持数据复制型传输，则目标承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应SN)，分别为RLC Entity c、RLC Entity d。可见，在实现承载类型切换时，需要释放源承载类型对应的RLC Entity a和RLC Entity b，并创建目标承载类型对应的RLC Entity c，或者，RLC Entity c和RLC Entity d。As shown in Figure 5, in this example, the source bearer type supports data replication type transmission, that is, the source bearer type is MCG bearer or SCG bearer (the following description shows the source bearer type as MCG bearer). For example, the target bearer type is not a split bearer, that is, the target bearer type is SCG bearer or MCG bearer. The following describes the target bearer type as the SCG bearer. In this scenario, the source bearer type supports data replication type transmission. Therefore, the PDCP layer of the source bearer type corresponds to two RLC entities (both RLC entities correspond to MN), which are respectively RLC Entity a and RLC Entity b; since the target bearer type is SCG bearer, the PDCP layer of the target bearer type It may correspond to one RLC entity or two RLC entities, depending on whether the target bearer type supports data replication type transmission. If the target bearer type does not support data replication type transmission, the PDCP layer of the target bearer type corresponds to one RLC entity ( The RLC entity corresponds to the SN) and is the RLC Entity c. If the target bearer type supports the data replication type transmission, the PDCP layer of the target bearer type corresponds to two RLC entities (both RLC entities correspond to the SN), which are respectively RLC Entity c, RLC Entity d. It can be seen that, when the bearer type switching is implemented, the RLC Entity a and the RLC Entity b corresponding to the source bearer type are released, and the RLC Entity c corresponding to the target bearer type is created, or RLC Entity c and RLC Entity d.

应用示例三Application example three

如图6所示，本示例中，目标承载类型支持数据复制型传输，也即目标承载类型为MCG bearer或SCG bearer(以下说明以目标承载类型为SCG bearer为例)，源承载类型是Split bearer，这种场景下：由于目标承载类型支持数据复制型传输，因此，目标承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应SN)，分别为RLC Entity b和RLC Entity c；由于源承载类型是Split bearer，因此，源承载类型的PDCP层也对应两个RLC实体(一个RLC实体对应MN，另一个RLC实体对应SN)，分别为RLC Entity a和RLC Entity b。可见，在实现承载类型切换时，需要释放源承载类型对应的RLC Entity a，并创建目标承载类型对应的RLC Entity c。As shown in Figure 6, in this example, the target bearer type supports data replication type transmission, that is, the target bearer type is MCG bearer or SCG bearer (the following description uses the target bearer type as SCG bearer as an example), and the source bearer type is Split bearer. In this scenario, the target bearer type supports data replication type transmission. Therefore, the PDCP layer of the target bearer type corresponds to two RLC entities (both RLC entities correspond to SN), which are RLC Entity b and RLC Entity c respectively; The source bearer type is a split bearer. Therefore, the PDCP layer of the source bearer type also corresponds to two RLC entities (one RLC entity corresponds to the MN and the other RLC entity corresponds to the SN), which are RLC Entity a and RLC Entity b, respectively. It can be seen that, when the bearer type switching is implemented, the RLC Entity a corresponding to the source bearer type needs to be released, and the RLC Entity c corresponding to the target bearer type is created.

应用示例四Application example four

如图7所示，本示例中，目标承载类型支持数据复制型传输，也即目标承载类型为MCG bearer或SCG bearer(以下说明以目标承载类型为SCG bearer为例)，源承载类型不是Split bearer，也即源承载类型为SCG bearer或MCG bearer(以下说明以源承载类型为MCG bearer为例)，这种场景下：由于目标承载类型支持数据复制型传输，因此，目标承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应SN)，分别为RLC Entity c和RLC Entity d；由于源承载类型是MCG bearer，因此，源承载类型的PDCP层可以对应一个RLC实体，也可以对应两个RLC实体，这取决于源承载类型是否支持数据复制型传输，如果源承载类型不支持数据复制型传输，则源承载类型的PDCP层对应一个RLC实体(该RLC实体对应MN)，为RLC Entity a；如果源承载类型支持数据复制型传输，则源承载类型的PDCP层对应两个RLC实体(两个RLC实体均对应MN)，分别为RLC Entity a、RLC Entity b。可见，在实现承载类型切换时，需要释放源承载类型对应的RLC Entity a，或者，RLC Entity a和RLC Entity b，并创建目标承载类型对应的RLC Entity c和RLC Entity d。As shown in Figure 7, in this example, the target bearer type supports data replication type transmission, that is, the destination The source bearer type is the MCG bearer or the SCG bearer. The source bearer type is not the split bearer. The source bearer type is the SCG bearer or the MCG bearer. The bearer is an example. In this scenario, the target bearer type supports data replication type transmission. Therefore, the PDCP layer of the target bearer type corresponds to two RLC entities (both RLC entities correspond to SN), which are RLC Entity c and RLC respectively. Entity d; Since the source bearer type is an MCG bearer, the PDCP layer of the source bearer type may correspond to one RLC entity or two RLC entities, depending on whether the source bearer type supports data copy type transmission, and if the source bearer type If the data replication type transmission is not supported, the PDCP layer of the source bearer type corresponds to one RLC entity (the RLC entity corresponds to the MN) and is the RLC Entity a. If the source bearer type supports data replication type transmission, the PDCP layer of the source bearer type corresponds to two. RLC Entity a, RLC Entity b, respectively. It can be seen that, when the bearer type switching is implemented, the RLC Entity a corresponding to the source bearer type, or RLC Entity a and RLC Entity b, needs to be released, and RLC Entity c and RLC Entity d corresponding to the target bearer type are created.

本发明实施例的应用示例不局限于以上几种，任何承载类型的转变，都可以采用本发明实施例的技术方案来实现，也即基于本发明实施例的思想所实现的任何承载类型的转变都属于本发明保护的范围。The application examples of the embodiments of the present invention are not limited to the above, and any change of the bearer type may be implemented by using the technical solution of the embodiment of the present invention, that is, any bearer type transition based on the idea of the embodiment of the present invention. All fall within the scope of protection of the present invention.

图8为本发明实施例的改变承载类型的装置的结构组成示意图一，如图8所示，所述改变承载类型的装置包括：FIG. 8 is a first schematic structural diagram of a device for changing a bearer type according to an embodiment of the present invention. As shown in FIG. 8, the device for changing a bearer type includes:

接收单元801，配置为接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型；The receiving unit 801 is configured to receive the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

承载类型改变单元802，配置为基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，和/或创建所述目标承载类型对应的至少一个RLC实体。 The bearer type change unit 802 is configured to release at least one RLC entity corresponding to the source bearer type, and/or create the target bearer type corresponding to the transport feature of the source bearer type and the transport feature of the target bearer type. At least one RLC entity.

本领域技术人员应当理解，图8所示的改变承载类型的装置中的各单元的实现功能可参照前述改变承载类型的方法的相关描述而理解。图8所示的改变承载类型的装置中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。It should be understood by those skilled in the art that the implementation function of each unit in the device of the change-bearing type shown in FIG. 8 can be understood by referring to the related description of the foregoing method for changing the bearer type. The functions of the units in the device of the change-bearing type shown in FIG. 8 can be realized by a program running on the processor, or can be realized by a specific logic circuit.

图9为本发明实施例的改变承载类型的装置的结构组成示意图二，如图9所示，所述改变承载类型的装置包括：FIG. 9 is a second structural diagram of a device for changing a bearer type according to an embodiment of the present invention. As shown in FIG. 9, the device for changing a bearer type includes:

接收单元901，配置为接收到控制信令，所述控制信令携有第一指示信息，所述第一指示信息用于指示所述终端从源承载类型改变到目标承载类型；The receiving unit 901 is configured to receive the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

承载类型改变单元902，配置为基于所述源承载类型的传输特征以及所述目标承载类型的传输特征，释放所述源承载类型对应的至少一个RLC实体，和/或创建所述目标承载类型对应的至少一个RLC实体。The bearer type change unit 902 is configured to release at least one RLC entity corresponding to the source bearer type, and/or create the target bearer type corresponding to the transport feature of the source bearer type and the transport feature of the target bearer type. At least one RLC entity.

所述控制信令还携有第二指示信息，所述第二指示信息用于指示所述目标承载类型是否支持数据复制型传输。The control signaling further carries second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission.

所述承载类型改变单元902包括：The bearer type changing unit 902 includes:

第一判断子单元9021，配置为如果所述源承载类型支持数据复制型传输，则判断所述目标承载类型是否为Split bearer；The first determining subunit 9021 is configured to support the data replication type if the source bearer type Transmit, determining whether the target bearer type is a Split bearer;

释放子单元9022，配置为如果所述目标承载类型是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放一个RLC实体；如果所述目标承载类型不是所述Split bearer，则从所述源承载类型对应的两个RLC实体中释放两个RLC实体。a release subunit 9022, configured to release an RLC entity from two RLC entities corresponding to the source bearer type if the target bearer type is the split bearer; if the target bearer type is not the Split bearer, Then, two RLC entities are released from two RLC entities corresponding to the source bearer type.

第二判断子单元9023，配置为如果所述目标承载类型支持数据复制型传输，则判断所述源承载类型是否为Split bearer；The second determining sub-unit 9023 is configured to determine, if the target bearer type supports data replication type transmission, whether the source bearer type is a Split bearer;

创建子单元9024，配置为如果所述源承载类型是所述Split bearer，则创建所述目标承载类型对应的一个RLC实体；如果所述源承载类型不是所述Split bearer，则创建所述目标承载类型对应的两个RLC实体。a sub-unit 9024, configured to: if the source bearer type is the split bearer, create one RLC entity corresponding to the target bearer type; if the source bearer type is not the split bearer, create the target bearer Two RLC entities corresponding to the type.

本领域技术人员应当理解，图9所示的改变承载类型的装置中的各单元的实现功能可参照前述改变承载类型的方法的相关描述而理解。图9所示的改变承载类型的装置中的各单元的功能可通过运行于处理器上的程序而实现，也可通过具体的逻辑电路而实现。It will be understood by those skilled in the art that the implementation function of each unit in the device of the change-bearing type shown in FIG. 9 can be understood by referring to the related description of the foregoing method for changing the bearer type. The functions of the units in the device of the change-bearing type shown in FIG. 9 can be realized by a program running on the processor, or can be realized by a specific logic circuit.

本发明实施例上述改变承载类型的装置如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read Only Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。The apparatus for changing the bearer type described above in the embodiment of the present invention may also be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. Make a computer device (can be A personal computer, server, or network device, etc.) performs all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

相应地，本发明实施例还提供一种计算机存储介质，其中存储有计算机可执行指令，该计算机可执行指令被处理器执行时实现本发明实施例的上述改变承载类型的方法。Correspondingly, the embodiment of the present invention further provides a computer storage medium, wherein the computer executable instructions are stored, and when the computer executable instructions are executed by the processor, the method for changing the bearer type of the embodiment of the present invention is implemented.

图10为本发明实施例的终端的结构组成示意图，如图10所示，终端100可以包括一个或多个(图中仅示出一个)处理器12(处理器12可以包括但不限于微处理器(MCU，Micro Controller Unit)或可编程逻辑器件(FPGA，Field Programmable Gate Array)等的处理装置)、用于存储数据的存储器14、以及用于通信功能的传输装置16。本领域普通技术人员可以理解，图10所示的结构仅为示意，其并不对上述电子装置的结构造成限定。例如，终端100还可包括比图10中所示更多或者更少的组件，或者具有与图10所示不同的配置。10 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 10, the terminal 100 may include one or more (only one shown) processor 12 (the processor 12 may include but is not limited to micro processing). A processing device such as a Micro Controller Unit (MCU) or a Programmable Gate Array (FPGA), a memory 14 for storing data, and a transmission device 16 for communication functions. It will be understood by those skilled in the art that the structure shown in FIG. 10 is merely illustrative and does not limit the structure of the above electronic device. For example, the terminal 100 may further include more or less components than those shown in FIG. 10, or have a configuration different from that shown in FIG.

存储器14可用于存储应用软件的软件程序以及模块，如本发明实施例中的改变承载类型的方法对应的程序指令/模块，处理器12通过运行存储在存储器14内的软件程序以及模块，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器14可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器14可进一步包括相对于处理器12远程设置的存储器，这些远程存储器可以通过网络连接至终端100。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。The memory 14 can be used to store software programs and modules of the application software, such as program instructions/modules corresponding to the method of changing the bearer type in the embodiment of the present invention, and the processor 12 executes by executing the software programs and modules stored in the memory 14 Various functional applications and data processing, that is, the above methods are implemented. Memory 14 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 14 may further include memory remotely located relative to processor 12, which may be connected to terminal 100 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

传输装置16用于经由一个网络接收或者发送数据。上述的网络具体实例可包括终端100的通信供应商提供的无线网络。在一个实例中，传输装置16包括一个网络适配器(NIC，Network Interface Controller)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置16可以为射频(RF，Radio Frequency)模块，其用于通过无线方式与互联网进行通讯。Transmission device 16 is for receiving or transmitting data via a network. The above specific network example may include a wireless network provided by a communication provider of the terminal 100. In one example, the transport The device 16 includes a network adapter (NIC) that can be connected to other network devices through the base station to communicate with the Internet. In one example, the transmission device 16 can be a radio frequency (RF) module for communicating with the Internet wirelessly.

本发明实施例所记载的技术方案之间，在不冲突的情况下，可以任意组合。The technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.

在本发明所提供的几个实施例中，应该理解到，所揭露的方法和智能设备，可以通过其它的方式实现。以上所描述的设备实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，如：多个单元或组件可以结合，或可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的各组成部分相互之间的耦合、或直接耦合、或通信连接可以是通过一些接口，设备或单元的间接耦合或通信连接，可以是电性的、机械的或其它形式的。In the several embodiments provided by the present invention, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

上述作为分离部件说明的单元可以是、或也可以不是物理上分开的，作为单元显示的部件可以是、或也可以不是物理单元，即可以位于一个地方，也可以分布到多个网络单元上；可以根据实际的需要选择其中的部分或全部单元来实现本实施例方案的目的。The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本发明各实施例中的各功能单元可以全部集成在一个第二处理单元中，也可以是各单元分别单独作为一个单元，也可以两个或两个以上单元集成在一个单元中；上述集成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。 The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention.

Claims

A method of changing a bearer type, the method comprising:

The terminal receives the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

Deactivating, according to the transmission feature of the source bearer type and the transmission feature of the target bearer type, the at least one radio link control protocol RLC entity corresponding to the source bearer type, and/or creating the target bearer type At least one RLC entity.

The method for changing a bearer type according to claim 1, wherein the control signaling further carries second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission.

A method of changing a bearer type according to claim 2, wherein

The source bearer type supports data replication type transmission, and the target bearer type does not support data replication type transmission; or

The source bearer type does not support data copy type transmission, and the target bearer type supports data copy type transmission; or

The source bearer type supports data copy type transmission, and the target bearer type supports data copy type transmission; or

The source bearer type does not support data copy type transmission, and the target bearer type does not support data copy type transmission.

The method of changing a bearer type according to claim 3, wherein the source bearer type is a non-spunt load;

And the releasing, by the terminal, the at least one RLC entity corresponding to the source bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type, including:

If the source bearer type supports data replication type transmission, determining whether the target bearer type is a offloading load;

If the target bearer type is the offloading load, releasing one RLC entity from two RLC entities corresponding to the source bearer type;

And if the target bearer type is not the offloading load, releasing two RLC entities from two RLC entities corresponding to the source bearer type.

The method of changing a bearer type according to claim 4, wherein the target bearer type is capable of supporting data copy type transmission or not supporting data copy type transmission.

The method of changing a bearer type according to claim 3, wherein the target bearer type is a non-spunt load;

The terminal is configured to create at least one RLC entity corresponding to the target bearer type, based on the transmission feature of the source bearer type and the transmission feature of the target bearer type, including:

If the target bearer type supports data replication type transmission, determining whether the source bearer type is a offloading load;

If the source bearer type is the offloading load, create one RLC entity corresponding to the target bearer type;

If the source bearer type is not the offloading load, create two RLC entities corresponding to the target bearer type.

The method of changing a bearer type according to claim 6, wherein the source bearer type is capable of supporting data copy type transmission or does not support data copy type transmission.

A device for changing a carrier type, the device comprising:

The receiving unit is configured to receive the control signaling, where the control signaling carries the first indication information, where the first indication information is used to indicate that the terminal changes from the source bearer type to the target bearer type;

a bearer type change unit, configured to release at least one RLC entity corresponding to the source bearer type, and/or create a target bearer type corresponding to the transport feature of the source bearer type and the transport feature of the target bearer type At least one RLC entity.

The apparatus for changing a bearer type according to claim 8, wherein the control signaling further carries second indication information, where the second indication information is used to indicate whether the target bearer type supports data replication type transmission.

The apparatus for changing a load type according to claim 9, wherein

The apparatus for changing a bearer type according to claim 10, wherein the source bearer type is a non-shunt load;

The bearer type changing unit includes:

a first determining subunit, configured to determine, if the source bearer type supports data replication type transmission, whether the target bearer type is a offloading load;

And releasing the subunit, configured to release one RLC entity from two RLC entities corresponding to the source bearer type if the target bearer type is the offloading load; if the target bearer type is not the offloading load, Two RLC entities are released from two RLC entities corresponding to the source bearer type.

The apparatus for changing a bearer type according to claim 11, wherein the target bearer type is capable of supporting data copy type transmission or not supporting data copy type transmission.

The apparatus for changing a bearer type according to claim 10, wherein the target bearer type is a non-shunt load;

The bearer type changing unit includes:

a second determining sub-unit, configured to determine, if the target bearer type supports data replication type transmission, whether the source bearer type is a offloading load;

Creating a sub-unit, configured to: if the source bearer type is the offloading load, create one RLC entity corresponding to the target bearer type; if the source bearer type is not the offloading load, create the target bearer type Corresponding two RLC entities.

The apparatus for changing a bearer type according to claim 13, wherein said source bearer type is capable of supporting data copy type transmission or not supporting data copy type transmission.

A computer storage medium having stored thereon computer executable instructions for performing the method steps of any one of claims 1 to 7 when executed by a processor.