WO2019214105A1

WO2019214105A1 - Method and apparatus for binding data streams, and computer storage medium

Info

Publication number: WO2019214105A1
Application number: PCT/CN2018/100536
Authority: WO
Inventors: 刘建华
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-05-10
Filing date: 2018-08-14
Publication date: 2019-11-14
Also published as: CN111247837B; WO2019213905A1; TW201947985A; CN111247837A; WO2019214089A1

Abstract

Disclosed in the present application are a method and apparatus for binding data streams, as well as a computer storage medium, the method comprising: a first access network element receiving an establishing request message or modification request message for a data stream in a PDU session that is sent by a first core network element; according to the establishing request message or modification request message, the first access network element binding each data stream and/or session and/or at least one tunnel to be established or to be modified in a wireless bearer under a corresponding RAT, wherein the at least one tunnel is used to transmit data between a core network and an access network.

Description

Method and device for binding data stream, computer storage medium

Technical field

The present application relates to the field of wireless communications technologies, and in particular, to a method and apparatus for binding a data stream, and a computer storage medium.

Background technique

Referring to FIG. 1, FIG. 1 is a conventional networking mode, in which a path of a user plane is indicated by a solid line, and a path of a control plane is indicated by a dotted line. In the networking mode, a terminal (UE, User Equipment) can Simultaneously establish new NR (New Radio) access and Long Term Evolution (LTE) access on the same protocol data unit (PDU) session, and part of the data flow of the PDU Session The NR base station (RAN node-1) and the UE bear the air interface bearer, and the other part of the data stream carries the air interface bearer between the LTE base station (RAN node-2) and the UE.

The NR base station or the LTE base station serves as an anchor point of the control plane, and performs a letter with the core network side receiving core access and mobility management (AMF, Core Access and Mobility Management Function) and session management function (SMF). Let the interaction complete the operations of establishing/modifying/deleting the PDU session.

At present, the anchor point on the RAN side only determines the air traffic carried by the NR according to the quality of the air interface channel and the quality of service (QoS), and which data flows are carried by the air interface corresponding to the LTE. Poor control.

Summary of the invention

The embodiment of the present application provides a method and device for binding a data stream, and a computer storage medium.

The method for binding a data stream provided by the embodiment of the present application includes:

Receiving, by the first access network element, a data flow establishment request message or a modification request message in a PDU session sent by the first core network element;

The first access network network element binds each data stream and/or session and/or at least one tunnel to be established or to be modified to a radio bearer under the corresponding RAT according to the setup request message or the modify request message. The at least one tunnel is used to transmit data between the core network and the access network.

In an embodiment, the setup request message or the modify request message includes first indication information, and the first indication information includes at least one of the following:

Corresponding relationship between the data flow indication information and the RAT indication information corresponding to the data flow to be established or to be modified;

Correspondence between the tunnel information corresponding to the at least one tunnel and the RAT indication information.

In an embodiment, the first indication information further includes indication information of whether the data flow to be established or to be modified is offloaded, and/or indication information of whether the uplink and downlink transmissions correspond to the same RAT;

The indication information of whether the offloading is used to indicate whether the data stream is transmitted under multiple RATs.

In an embodiment, one data stream and/or tunnel corresponds to one RAT indication information or multiple RAT indication information.

In an embodiment, when one data stream and/or the tunnel corresponds to multiple RAT indication information, each RAT indication information of the multiple RAT indication information corresponds to one priority information.

In an embodiment, the setup request message or the modify request message includes second indication information, where the second indication information includes data flow indication information corresponding to the data flow to be established or to be modified;

The first access network element side stores the first configuration information, where the first configuration information includes different RAT indication information corresponding to the data flow indication information range.

In an embodiment, the first access network element binds each data stream and/or session to be established or to be modified to a radio bearer under the corresponding RAT according to the setup request message or the modify request message. Including:

Determining, by the first access network element, the RAT corresponding to each data flow to be established or to be modified, according to the second indication information and the first configuration information, and the data to be established or to be modified The flow and/or session is bound to a radio bearer under the corresponding RAT.

In an embodiment, the first configuration information is statically configured on the network element side of the first access network, or the first configuration information is sent by the core network side or the network management side to the first access network. Network element.

In an embodiment, the second indication information is generated by the first core network element based on a binding policy, where the binding policy includes at least one of the following: each attribute information of the data stream, a PDU session, and a RAT. Corresponding relationship, indication information of whether to support the multi-connection function, and indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.

In an embodiment, the binding policy is stored in the subscription information, and when the terminal performs registration or PDU session establishment, the first core network element receives the subscription information, and obtains the subscription information from the subscription information. Binding strategy.

In an embodiment, the RAT corresponding to the DNN and/or the S-NSSAI is configured in the subscription information, so that the first core network element is determined to be established based on the DNN and/or S-NSSAI according to the subscription information. The RAT corresponding to the modified PDU session, the setup request message or the modification request message sent by the first core network element to the first access network network element carries third indication information, where the third indication information is used Indicates the RAT corresponding to the PDU session.

In an embodiment, the binding operation of the data stream to be established or to be modified and/or the at least one tunnel and the radio bearer in the corresponding RAT is triggered by: the second core network element to the A core network element sends a first request message.

In an embodiment, the first request message is sent by the third-party server to the second core network element, and is forwarded by the second core network element to the first core network element.

In an embodiment, the method further includes:

Sending, by the terminal, the second request message to the first core network element or the second core network element; and/or the third-party server sends the second request message to the first core network element or the second core network And the second request message includes a binding policy, where the binding policy includes at least one of the following: each attribute information of the data stream, a correspondence between the PDU session and the RAT, an indication information of whether the multi-connection function is supported, whether The indication information of the multi-connection is triggered, wherein the attribute information includes at least one of the following: data packet feature information, Application id.

In an embodiment, the binding policy is sent by the network side to the terminal.

In an embodiment, the method further includes:

After the data network and/or the session and/or the at least one tunnel to be established or to be modified are bound to the radio bearer in the corresponding RAT, the first access network element is sent to the first core network. The element sends a confirmation message.

In an embodiment, the method further includes:

The first access network element receives the fourth indication information sent by the first core network element, and determines whether to enable the multi-connection function based on the fourth indication information; or

When the first access network element receives the at least two pieces of tunnel information sent by the network element of the first core network, the first access network element determines that the multi-connection function is enabled.

In an embodiment, the fourth indication information is further used to indicate a type of each access network element network element in the multiple connection.

In an embodiment, when there are N tunnel information and the fourth indication information are sent to the first access network network element, a tunnel is established for each access network element to perform data transmission, N≥ 2.

In an embodiment, the multi-connection function includes at least a dual connectivity function.

In an embodiment, the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

The first dual connectivity function means that at least one third core network element is respectively connected to the first access network element and the second access network element; the first access network element side The data is transmitted through the tunnel between the first access network element and the at least one third core network element, and the data of the second access network element side passes through the second access network element Tunneling with the at least one third core network element;

The second dual connectivity function means that at least one third core network element is connected to the first access network element, the first access network element and the second access network element The data of the first access network element side is transmitted through the tunnel between the first access network element and the at least one third core network element, and the second access network element The data of the side is forwarded to the network element of the first access network by the network element of the second access network, and is between the network element of the first access network and the network element of the at least one third core network. Tunnel transmission.

The terminal sends a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, and the binding policy includes at least one of the following: each attribute information of the data flow. And the indication information of the PDU session and the RAT, the indication information of whether the multi-connection function is supported, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.

In an embodiment, the second request message includes a session establishment request message or a session modification request message.

In an embodiment, the second request message sent by the terminal includes a binding relationship, where the one binding relationship is used to indicate that the data stream and/or session to be established and/or modified is bound to An access network element.

In an embodiment, the second request message sent by the terminal includes a correspondence, where the one correspondence is used to indicate that one data stream and/or the tunnel corresponds to one RAT indication information or multiple RAT indication information. .

In an embodiment, when one data stream and/or the tunnel corresponds to multiple RAT indication information, each RAT indication information in the multiple RAT indication information corresponds to one priority information.

The terminal sends a second request message to the first core network element or the second core network element, where the second request message is sent and/or modified by the second request message when the terminal sends the second request message multiple times. Streams and/or sessions need to be bound to different access network elements for transmission.

The device for binding a data stream provided by the embodiment of the present application includes:

a receiving unit, configured to receive an establishment request message or a modification request message of a data flow in a PDU session sent by the first core network element;

a binding unit, configured to bind each data stream and/or session and/or at least one tunnel to be established or to be modified to a radio bearer under a corresponding RAT according to the setup request message or the modify request message, where The at least one tunnel is used to transmit data between the core network and the access network.

The device further includes: a storage unit, configured to store first configuration information, where the first configuration information includes RAT indication information corresponding to different data flow indication information ranges.

In an embodiment, the binding unit is configured to determine, according to the second indication information and the first configuration information, a RAT corresponding to each data flow to be established or to be modified, and each of the to-be-established Or the data stream and/or session to be modified is bound to the radio bearer under the corresponding RAT.

In an embodiment, the terminal sends a second request message to the first core network element or the second core network element; and/or the third party server sends a second request message to the first core network element. Or the second core network element, the second request message includes a binding policy, where the binding policy includes at least one of the following: each attribute information of the data stream, a correspondence between the PDU session and the RAT, and whether multiple connections are supported. The indication information of the function, whether to trigger the multi-connection indication information, wherein the attribute information includes at least one of the following: the data packet feature information, the Application id.

In an embodiment, the device further includes:

And a sending unit, configured to send an acknowledgement message to the first core network element.

In an embodiment, the receiving unit is further configured to receive fourth indication information sent by the first core network element, and determine, according to the fourth indication information, whether to enable the multi-connection function; or In the case of at least two tunnel information sent by a core network element, it is determined that the multi-connection function is enabled.

a sending unit, configured to send a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, where the binding policy includes at least one of the following: a data flow The attribute information, the correspondence between the PDU session and the RAT, the indication information of whether to support the multi-connection function, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.

a sending unit, configured to send a second request message to the first core network element or the second core network element, where when the second request message is sent multiple times, different second request messages are established and/or The modified data stream and/or session need to be bound to different access network elements for transmission.

The computer storage medium provided by the embodiment of the present application has stored thereon computer executable instructions, and the computer executable instructions are implemented by the processor to implement the method for binding the data stream.

In the technical solution of the embodiment of the present application, the first access network element receives the data flow establishment request message or the modification request message in the PDU session sent by the first core network element; the first access network element is configured according to The setup request message or the modify request message binds each data stream and/or session to be established or to be modified to a radio bearer under the corresponding RAT. With the technical solution of the embodiment of the present application, the control data stream is selected for the RAT, and the anchor point on the RAN side can determine, according to the indication information sent by other network elements, how each data flow (that is, QoS flow) in the PDU session is mapped to the air interface. On the bearer (DRB).

DRAWINGS

The drawings described herein are intended to provide a further understanding of the present application, and are intended to be a part of this application. In the drawing:

Figure 1 is an existing networking mode;

2 is a schematic flowchart 1 of a method for binding a data stream according to an embodiment of the present application;

3 is a schematic diagram of a correspondence situation of a binding data flow according to an embodiment of the present application;

4 is a schematic diagram of a second case of binding data flow according to an embodiment of the present application;

FIG. 5( a) is a schematic diagram 1 of a DC architecture according to an embodiment of the present application;

FIG. 5(b) is a second schematic diagram of a DC architecture according to an embodiment of the present application;

FIG. 6 is a second schematic flowchart of a method for binding a data stream according to an embodiment of the present application;

FIG. 7 is a schematic flowchart 3 of a method for binding a data stream according to an embodiment of the present application;

FIG. 8 is a first schematic structural diagram of an apparatus for binding a data stream according to an embodiment of the present application; FIG.

FIG. 9 is a schematic structural diagram of a device for binding a data stream according to an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a computer device according to an embodiment of the present application.

detailed description

The embodiments of the present application are described in detail with reference to the accompanying drawings.

2 is a schematic flowchart 1 of a method for binding a data stream according to an embodiment of the present application. As shown in FIG. 2, the method for binding a data stream includes the following steps:

Step 201: The first access network element receives the establishment request message or the modification request message of the data flow in the PDU session sent by the first core network element.

In the embodiment of the present application, the first access network element is an anchor point on the RAN side, such as the NR base station or the LTE base station in FIG. 1 . The first core network element is SMF. The second core network element involved in the following is PCF.

The RAN side selects to establish a radio bearer under a specific RAT according to the establishment/modification request message of the data stream in the PDU session sent by the core network side.

Step 202: The first access network network element binds each data stream and/or session to be established or to be modified and/or at least one tunnel to the corresponding RAT according to the establishment request message or the modification request message. In the radio bearer, the at least one tunnel is used to transmit data between the core network and the access network.

In the embodiment of the present application, the first access network element binds each data stream and/or session to be established or to be modified to the radio bearer in the corresponding RAT according to the setup request message or the modify request message. In, can be divided into the following situations:

Case 1: Referring to FIG. 3, the setup request message or the modify request message includes first indication information, and the first indication information includes at least one of the following:

Further, the first indication information further includes indication information of whether the data flow to be established or to be modified is offloaded, and/or indication information of whether the uplink and downlink transmissions correspond to the same RAT. The indication information of whether the offloading is used to indicate whether the data stream is transmitted under multiple RATs.

For example, the indication of the indication information of the data stream offloading: the data stream running on the core network corresponds to the NR base station on the RAN side, and the part corresponds to the LTE base station.

Here, one data stream and/or tunnel corresponds to one RAT indication information or multiple RAT indication information. When one data stream and/or tunnel corresponds to multiple RAT indication information, each RAT indication information of the multiple RAT indication information corresponds to one priority information.

Specifically, the SMF sends first indication information to the RAN side, where the first indication information includes a list of data flows to be established/modified and a corresponding RAT. The RAN side binds the data stream or the entire PDU session to the radio bearers under different RATs according to the first indication information sent by the SMF.

The RAT may be of the following access types: NR access, LTE access, WLAN access, 3GPP access, non-3GPP access, satellite access, and the like.

The first indication information is exemplified by Table 1 below, wherein the QFI value represents data flow indication information, and the RAT selection represents RAT indication information.

Table 1

In addition, the first indication information further includes indication information of whether the data flow to be established or to be modified is offloaded, and/or indication information of whether the uplink and downlink transmissions correspond to the same RAT, as shown in Table 1, whether the split bearer indicates whether the traffic is offloaded. Indicates whether the uplink and downlink are the same RAT indicating whether the uplink and downlink transmissions correspond to the indication information of the same RAT.

It should be understood that whether to perform the Split bearer means that all the downlink data flows are sent to the anchor point on the RAN side, and then the anchor points on the RAN side are respectively forwarded to the designated RAT. For example, the anchor point on the RAN side is an NR base station, and the data stream needs to be carried on the bearer of the LTE air interface. When the Split bearer is performed, the data stream of the core network is sent to the NR base station, and then the NR base station transmits the data that needs to be transmitted on the LTE. The flow is forwarded to the LTE base station; otherwise, if the split bearer is not performed, the core network directly sends the data stream to the LTE base station without forwarding through the NR base station.

In addition, the RAT selection may be a priority list, as shown by the RAT selection corresponding to QFI=1 in Table 1, the first preferred access LTE, and the second selected access NR, indicating preferential access to LTE, and LTE access failure. Or access to the NR when other conditions occur.

Case 2: Referring to FIG. 4, the setup request message or the modify request message includes second indication information, where the second indication information includes data flow indication information corresponding to a data flow to be established or to be modified; the first access The network element side stores first configuration information, where the first configuration information includes RAT indication information corresponding to different data flow indication information ranges.

In this case, the first access network element determines, according to the second indication information and the first configuration information, a RAT corresponding to each data flow to be established or to be modified, and the each to be established or The data stream and/or session to be modified is bound to the radio bearer under the corresponding RAT.

In an embodiment, the second indication information is generated by the first core network element based on a binding policy, where the binding policy includes at least one of the following: each attribute information of the data stream, a PDU session, and a RAT. Corresponding relationship, indication information of whether to support the multi-connection function, and indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id. Further, the binding policy is stored in the subscription information. When the terminal performs the registration or the PDU session is established, the first core network element receives the subscription information, and obtains the binding policy from the subscription information. Here, whether or not the indication information for triggering the dual connection function is supported refers to whether the terminal has the capability of dual connection.

Specifically, after receiving the data flow establishment/modification request sent by the SMF, the RAN side establishes radio bearers of different data flows under different RATs according to the value of the QFI and the RAT corresponding to the QFI value range. Here, the mapping between the QFI value range and the RAT is statically configured on the RAN side or previously sent by the core network/network management to the RAN, that is, the mapping relationship similar to Table 1 is pre-configured on the RAN side, and the data flow establishment of each PDU session is not required. / Make changes when making changes.

Further, the value of QFI is generated by the SMF and can be generated according to the binding policy shown in Table 2. Specifically, the SMF/PCF network element triggers to establish radio bearers of different data flows under different RATs according to the binding policy as shown in Table 2 when the trigger condition is met.

数据包特征信息Packet characteristic information	接入LTEAccess to LTE
Application id＝1Application id=1	接入NRAccess to NR
Application id＝2Application id=2	接入LTEAccess to LTE
QFI/5QI＝[x-y]QFI/5QI=[x-y]	接入LTEAccess to LTE
QFI/5QI＝[w-z]QFI/5QI=[w-z]	接入WLAN等Access to WLAN, etc.

Table 2

The data packet feature information includes one or more of the following: a URL, an SNI (Server Name Indicator), an IP source address, an IP source port number, an IP destination address, an IP destination port number, a MAC source address, an IP source port number, MAC destination address, MAC destination port number, protocol type, and VLAN tag. All the information on the left side in Table 2 (the attribute information of the data flow in the embodiment of the present application) will eventually correspond to one data stream, and each data stream has its own QFI (QoS Flow Id).

Case 3: configuring a RAT corresponding to the DNN and/or the S-NSSAI in the subscription information, so that the first core network element determines, according to the subscription information, a PDU established or modified based on the DNN and/or the S-NSSAI. The RAT corresponding to the session, the setup request message or the modify request message sent by the first core network element to the first access network network element carries the third indication information, where the third indication information is used to indicate the The RAT corresponding to the PDU session.

Specifically, the RAT type corresponding to the DNN and/or the S-NSSAI is configured in the subscription information, and the PDU session established/modified according to the DNN and/or the S-NSSAI on the subsequent SMF can only select the specified RAT type, including NR and LTE. NR, LTE, etc., when the SMF establishes/modifies a PDU session request, it only carries the RAT type corresponding to the PDU session.

In an embodiment, the binding operation of the data stream to be established or to be modified and/or the at least one tunnel and the radio bearer in the corresponding RAT is triggered by: the second core network element to the A core network element sends a first request message. Further, the first request message is sent by the third-party server to the second core network element, and is forwarded by the second core network element to the first core network element.

In addition, the first core network element or the second core network element may obtain the binding policy by: sending, by the terminal, the second request message to the first core network element or the second core network element; and Or the third-party server sends the second request message to the first core network element or the second core network element, where the second request message includes a binding policy, and the binding policy includes at least one of the following: The attribute information of the data stream, the correspondence between the PDU session and the RAT, the indication information of whether the multi-connection function is supported, and the indication information of whether the multi-connection is triggered, wherein the attribute information includes at least one of the following: the packet characteristic information, the Application Id. Here, whether or not the indication information for triggering the dual connection function is supported refers to whether the terminal has the capability of dual connection.

Here, the binding policy may be stored in the subscription information, and sent to the core network element (such as SMF) when the UE performs registration or PDU session establishment. The binding policy is sent by the network side to the terminal.

Specifically, the UE sends a request data flow binding message to the PCF/SMF through the NAS message and/or the third party OTT server sends a request data flow binding message to the PCF/SMF, where the request data flow binding message includes the following table 2 Binding strategy.

In the embodiment of the present application, the first access network element binds each data stream and/or session and/or at least one tunnel to be established or to be modified to the radio bearer in the corresponding RAT. The first core network element sends an acknowledgement message.

In the embodiment of the present application, in addition to binding the data flows and/or sessions to be established or to be modified to the radio bearers in the corresponding RAT, at least one tunnel may be bound to the wireless under the corresponding RAT. In the bearer, the first access network element receives the fourth indication information sent by the first core network element, and determines whether to enable the multi-connection function based on the fourth indication information. If the first access network element receives the at least two pieces of tunnel information sent by the network element of the first core network, the first access network element determines that the multi-connection function is enabled. (The implicit way to determine whether to enable dual connectivity).

Taking the dual connection as an example, the fourth indication information indicates that the type of the first access network element is an NR base station, and the type of the second access network network element is an LTE base station, or the fourth indication information indicates the second The type of the access network element is an NR base station, and the type of the first access network element is an LTE base station, or the fourth indication information indicates the type of the first access network element and the second access network element Both are NR base stations, or the fourth indication information indicates that the types of the first access network element and the second access network element are both LTE base stations.

Here, the access network element side needs to establish an interface with the core network. If there is multiple tunnel information, each access network element in the multiple connection needs to establish a tunnel for data transmission.

The multi-connection function involved in the above solution includes at least a dual connectivity function.

Here, the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

For example, in the PDU session establishment and/or modification process, the core network element (SMF) can provide one or more core network side tunnel information (CN Tunnel Info), that is, N3 tunnel information, to the access network element. The N3 tunnel information is directed to the N3 tunnel address. Further, one RAT corresponding to each CN Tunnel Info, that is, the data transmitted by the tunnel indicated by the CN Tunnel Info is transmitted through a specific RAT radio access. Further, the core network indicates to the access network whether to trigger the dual connectivity (DC, Dual Connectivity) function, including the following two DC forms:

DC-1: Referring to FIG. 5(a), one or more UPFs are connected to RAN Node-1 and RAN Node-2, respectively.

DC-2: Referring to FIG. 5(b), one or more UPFs are only connected to the RAN Node-1, and the data through the RAN Node-2 is provided by the RAN Node-1 via the Xn interface.

FIG. 6 is a schematic flowchart 2 of a method for binding a data flow according to an embodiment of the present disclosure. As shown in FIG. 6 , the method for binding a data flow includes the following steps:

Step 601: The UE sends a PDU session establishment/modification request message to the SMF/UPF. Optionally, the PDU session establishment/modification request message is added with the packet feature description information/Application id and the corresponding RAT selection (similar to Table 2). Binding strategy).

Step 602: 2a. During the interaction between the SMF and the PCF, the PCF may configure the binding policy shown in Table 2; and/or, the 2b.SMF interacts with the UDM, and obtains the RAT selection policy corresponding to the DNN/NSSAI through the subscription information.

Step 603: The SMF triggers a PDU session establishment/modification request.

3a. If the PDU selection request (ie, the binding policy) is carried in the PDU session establishment/modification request message in step 401, the request is immediately started.

3b. If a subsequent application data flow is generated, the SMF triggers the request according to the binding policy or the RAT selection policy configured in step 602.

Here, the SMF adds the indication information shown in Table 1 to the request message sent to the RAN side; or determines the value of the QFI according to the static configuration rule and then sends it to the RAN side.

Step 604: The RAN performs establishment of the radio bearer according to the RAT indication parameter or the QFI value.

Step 605: The RAN sends a reply message to the SMF/UPF.

FIG. 7 is a schematic flowchart 3 of a method for binding a data stream according to an embodiment of the present disclosure. As shown in FIG. 7, the method for binding a data stream includes the following steps:

Step 701: The terminal sends a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, where the binding policy includes at least one of the following: Each of the attribute information, the correspondence between the PDU session and the RAT, the indication information of whether to support the multi-connection function, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.

The dual connectivity function is a first dual connectivity function or a second dual connectivity function;

Here, the second request message includes a session establishment request message or a session modification request message.

In an embodiment, the second request message sent by the terminal includes a binding relationship, where the one binding relationship is used to indicate that the data stream and/or session to be established and/or modified is bound to An access network element. For example, the data flow established by the terminal in the first session is all transmitted through the RAT-1, and when the terminal initiates the second second request message, all the newly established data streams are transmitted through the RAT-2.

In an embodiment, the second request message sent by the terminal includes a correspondence, where the one correspondence is used to indicate that one data stream and/or the tunnel corresponds to one RAT indication information or multiple RAT indication information. . Further, when one data stream and/or the tunnel corresponds to multiple RAT indication information, each RAT indication information of the multiple RAT indication information corresponds to one priority information.

Then, the process of the access network side and the core network side can be understood by referring to the description of the method of binding the data flow shown in FIG. 5 and the description of the method of binding the data flow shown in FIG. 2, and details are not described herein.

The above manner is the data flow indicated by the terminal through the second request message indicating that the data flow needs to be established and/or modified, and/or which access network element the session should be bound to. The terminal may also determine, in an implicit manner, which data network and/or the data stream that needs to be established and/or modified should be bound to which access network element, specifically, the terminal sends a second request message to the first a core network element or a second core network element, wherein when the terminal sends the second request message multiple times, the data flow and/or the session established and/or modified by the different second request message are bound Transfer to different access network elements. For example, the terminal sends the second request message for the first time, and the data stream and/or the session that is established and/or modified is bound to the RAT-1 for transmission; the terminal sends the second request message for the second time, this time establishes and/or Or the modified data stream and/or session is bound to RAT-2 for transmission.

FIG. 8 is a first schematic structural diagram of an apparatus for binding a data stream according to an embodiment of the present application. As shown in FIG. 8, the apparatus includes:

The receiving unit 801 is configured to receive a setup request message or a modify request message of a data flow in a PDU session sent by the first core network element.

The binding unit 802 is configured to bind each data stream and/or session and/or at least one tunnel to be established or to be modified to the radio bearer under the corresponding RAT according to the setup request message or the modify request message. The at least one tunnel is used to transmit data between the core network and the access network.

The device further includes: a storage unit 803, configured to store first configuration information, where the first configuration information includes RAT indication information corresponding to different data flow indication information ranges.

In an embodiment, the binding unit 802 is configured to determine, according to the second indication information and the first configuration information, a RAT corresponding to each data flow to be established or to be modified, and The data stream and/or session established or to be modified is bound to the radio bearer under the corresponding RAT.

In an embodiment, the device further includes:

The sending unit 804 is configured to send an acknowledgement message to the first core network element.

In an embodiment, the receiving unit 801 is further configured to receive fourth indication information that is sent by the first core network element, and determine, according to the fourth indication information, whether to enable the multi-connection function; or In the case of at least two tunnel information sent by the first core network element, it is determined that the multi-connection function is enabled.

In an embodiment, the multi-connection function includes at least a dual connectivity function. Further, the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

Those skilled in the art should understand that the implementation functions of the units in the apparatus for binding data streams shown in FIG. 8 can be understood by referring to the related description of the foregoing method of binding data streams. The functions of the units in the apparatus for binding data streams shown in FIG. 8 may be implemented by a program running on a processor, or may be implemented by a specific logic circuit.

FIG. 9 is a schematic structural diagram of a structure of an apparatus for binding a data stream according to an embodiment of the present disclosure. As shown in FIG. 9, the apparatus includes: a sending unit 901.

In an embodiment, the sending unit 901 is configured to send a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, and the binding The policy includes at least one of the following: the attribute information of the data stream, the correspondence between the PDU session and the RAT, the indication information of whether the multi-connection function is supported, and the indication information of whether the multi-connection is triggered, where the attribute information includes at least one of the following: : Packet characteristics information, Application id.

Further, the second request message includes a session establishment request message or a session modification request message.

Further, the second request message sent by the terminal includes a binding relationship, where the binding relationship is used to indicate that the established and/or modified data stream and/or session is bound to an access network. Network element.

In the above solution, the second request message sent by the terminal includes a corresponding relationship, where the one type of correspondence is used to indicate that one data stream and/or the tunnel corresponds to one RAT indication information or multiple RAT indication information. Further, when one data stream and/or the tunnel corresponds to multiple RAT indication information, each RAT indication information of the multiple RAT indication information corresponds to one priority information.

In another embodiment, the sending unit 901 is configured to send a second request message to the first core network element or the second core network element, where when the sending the second request message multiple times, different The data stream and/or session established and/or modified by the second request message needs to be bound to different access network elements for transmission.

It should be understood by those skilled in the art that the implementation functions of the units in the apparatus for binding data streams shown in FIG. 9 can be understood by referring to the related description of the foregoing method of binding data streams. The functions of the units in the apparatus for binding data streams shown in FIG. 9 may be implemented by a program running on a processor, or may be implemented by a specific logic circuit.

The apparatus for binding data streams described above in the embodiment of the present application 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 application 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. A computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes. Thus, embodiments of the present application are not limited to any particular combination of hardware and software.

Correspondingly, the embodiment of the present application further provides a computer storage medium, where the computer executable instructions are stored, and the computer executable instructions are executed by the processor to implement the foregoing method for binding data streams in the embodiments of the present application.

FIG. 10 is a schematic structural diagram of a computer device according to an embodiment of the present disclosure. The computer device may be a terminal or a network device. As shown in FIG. 10, computer device 100 may include one or more (only one shown) processor 1002 (processor 1002 may include, but is not limited to, a Micro Controller Unit (MCU) or a programmable logic device. A processing device such as an FPGA (Field Programmable Gate Array), a memory 1004 for storing data, and a transmission device 1006 for a communication function. 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, computer device 100 may also include more or fewer components than shown in FIG. 10, or have a different configuration than that shown in FIG.

The memory 1004 can be used to store software programs and modules of application software, such as program instructions/modules corresponding to the methods in the embodiments of the present application, and the processor 1002 executes various functional applications by running software programs and modules stored in the memory 1004. And data processing, that is, to achieve the above method. Memory 1004 can include high speed random access memory, and can 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 1004 can further include memory remotely located relative to processor 1002, which can be connected to computer device 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.

Transmission device 1006 is for receiving or transmitting data via a network. The network specific examples described above may include a wireless network provided by a communication provider of computer device 100. In one example, the transmission device 1006 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 1006 can be a radio frequency (RF) module for communicating with the Internet wirelessly.

The technical solutions described in the embodiments of the present application can be arbitrarily combined without conflict.

In the several embodiments provided by the present application, 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.

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.

In addition, each functional unit in each embodiment of the present application 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.

The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It should be covered by the scope of protection of this application.

Claims

A method of binding a data stream, the method comprising:

Receiving, by the first access network element, a data flow establishment request message or a modification request message in a PDU session sent by the first core network element;

The first access network network element binds each data stream and/or session and/or at least one tunnel to be established or to be modified to a radio bearer under the corresponding RAT according to the setup request message or the modify request message. The at least one tunnel is used to transmit data between the core network and the access network.
The method of claim 1, wherein the setup request message or the modify request message comprises first indication information, the first indication information comprising at least one of the following:

Corresponding relationship between the data flow indication information and the RAT indication information corresponding to the data flow to be established or to be modified;

Correspondence between the tunnel information corresponding to the at least one tunnel and the RAT indication information.
The method according to claim 2, wherein the first indication information further includes indication information of whether the data flow to be established or to be modified is offloaded, and/or indication information of whether the uplink and downlink transmissions correspond to the same RAT;

The indication information of whether the offloading is used to indicate whether the data stream is transmitted under multiple RATs.
The method according to claim 2 or 3, wherein one data stream and/or tunnel corresponds to one RAT indication information or a plurality of RAT indication information.
The method according to claim 4, wherein, when one data stream and/or tunnel corresponds to a plurality of RAT indication information, each of the plurality of RAT indication information corresponds to one priority information.
The method according to claim 1, wherein the establishment request message or the modification request message comprises second indication information, and the second indication information comprises data flow indication information corresponding to the data flow to be established or to be modified;

The first access network element side stores the first configuration information, where the first configuration information includes different RAT indication information corresponding to the data flow indication information range.
The method according to claim 6, wherein the first access network element binds each data stream and/or session to be established or to be modified to a corresponding one according to the establishment request message or the modification request message. Among the radio bearers under the RAT, include:

Determining, by the first access network element, the RAT corresponding to each data flow to be established or to be modified, according to the second indication information and the first configuration information, and the data to be established or to be modified The flow and/or session is bound to a radio bearer under the corresponding RAT.
The method according to claim 6 or 7, wherein the first configuration information is statically configured on the network side of the first access network, or the first configuration information is sent by the core network side or the network management side. The first access network network element.
The method according to any one of claims 6 to 8, wherein the second indication information is generated by the first core network element based on a binding policy, the binding policy comprising at least one of the following: a data flow The attribute information, the correspondence between the PDU session and the RAT, the indication information of whether to support the multi-connection function, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.
The method according to claim 9, wherein the binding policy is stored in the subscription information, and the first core network element receives the subscription information from the signing when the terminal performs registration or PDU session establishment. Obtain the binding policy in the information.
The method according to any one of claims 1 to 10, wherein a RAT corresponding to the DNN and/or the S-NSSAI is configured in the subscription information, so that the first core network element determines the basis based on the subscription information. a RAT corresponding to the PDU session established or modified by the DNN and/or the S-NSSAI, where the first core network element carries a third indication in the setup request message or the modification request message sent by the network element of the first access network Information, the third indication information is used to indicate a RAT corresponding to the PDU session.
The method according to any one of claims 1 to 11, wherein the binding operation of the data stream to be established or to be modified and/or the at least one tunnel and the radio bearer under the corresponding RAT is triggered by: The second core network element sends a first request message to the first core network element.
The method according to claim 12, wherein the first request message is sent by the third-party server to the second core network element, and is forwarded by the second core network element to the first core network yuan.
The method of any of claims 1 to 13, wherein the method further comprises:

Sending, by the terminal, the second request message to the first core network element or the second core network element; and/or the third-party server sends the second request message to the first core network element or the second core network And the second request message includes a binding policy, where the binding policy includes at least one of the following: each attribute information of the data stream, a correspondence between the PDU session and the RAT, an indication information of whether the multi-connection function is supported, whether The indication information of the multi-connection is triggered, wherein the attribute information includes at least one of the following: data packet feature information, Application id.
The method of claim 14, wherein the binding policy is sent by the network side to the terminal.
The method of any of claims 1 to 15, wherein the method further comprises:

After the data network and/or the session and/or the at least one tunnel to be established or to be modified are bound to the radio bearer in the corresponding RAT, the first access network element is sent to the first core network. The element sends a confirmation message.
The method of any of claims 1 to 16, wherein the method further comprises:

The first access network element receives the fourth indication information sent by the first core network element, and determines whether to enable the multi-connection function based on the fourth indication information; or

When the first access network element receives the at least two pieces of tunnel information sent by the network element of the first core network, the first access network element determines that the multi-connection function is enabled.
The method according to claim 17, wherein the fourth indication information is further used to indicate a type of each access network element network element in the multi-connection.
The method according to claim 17 or 18, wherein when there are N tunnel information and the fourth indication information is sent to the first access network network element, one for each access network network element is established. The tunnel carries out data transmission, N≥2.
The method of claim 9, 14 or 17, wherein said multi-connection function comprises at least a dual connectivity function.
The method according to claim 20, wherein the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

The first dual connectivity function means that at least one third core network element is respectively connected to the first access network element and the second access network element; the first access network element side The data is transmitted through the tunnel between the first access network element and the at least one third core network element, and the data of the second access network element side passes through the second access network element Tunneling with the at least one third core network element;

The second dual connectivity function means that at least one third core network element is connected to the first access network element, the first access network element and the second access network element The data of the first access network element side is transmitted through the tunnel between the first access network element and the at least one third core network element, and the second access network element The data of the side is forwarded to the network element of the first access network by the network element of the second access network, and is between the network element of the first access network and the network element of the at least one third core network. Tunnel transmission.
A method of binding a data stream, the method comprising:

The terminal sends a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, and the binding policy includes at least one of the following: each attribute information of the data flow. And the corresponding information of the PDU session and the RAT, the indication information of the multi-connection function, and the indication information of whether the multi-connection is triggered, wherein the attribute information includes at least one of the following: the data packet feature information and the Application id.
The method of claim 22 wherein said multi-connect function comprises at least a dual connectivity function.
The method according to claim 23, wherein the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

The first dual connectivity function means that at least one third core network element is respectively connected to the first access network element and the second access network element; the first access network element side The data is transmitted through the tunnel between the first access network element and the at least one third core network element, and the data of the second access network element side passes through the second access network element Tunneling with the at least one third core network element;

The second dual connectivity function means that at least one third core network element is connected to the first access network element, the first access network element and the second access network element The data of the first access network element side is transmitted through the tunnel between the first access network element and the at least one third core network element, and the second access network element The data of the side is forwarded to the network element of the first access network by the network element of the second access network, and is between the network element of the first access network and the network element of the at least one third core network. Tunnel transmission.
The method according to any one of claims 22 to 24, wherein the second request message comprises a session establishment request message or a session modification request message.
The method according to any one of claims 22 to 25, wherein the second request message sent by the terminal comprises a binding relationship, the one binding relationship is used to indicate that a connection and/or modification will be established. The data stream and/or session is bound to an access network element.
The method according to any one of claims 22 to 26, wherein the second request message sent by the terminal comprises a correspondence, the one correspondence is used to indicate a data stream and/or a tunnel corresponding One RAT indication information or multiple RAT indication information.
The method according to claim 27, wherein, when one data stream and/or tunnel corresponds to a plurality of RAT indication information, each of the plurality of RAT indication information corresponds to one priority information.
A method of binding a data stream, the method comprising:

The terminal sends a second request message to the first core network element or the second core network element, where the second request message is sent and/or modified by the second request message when the terminal sends the second request message multiple times. Streams and/or sessions need to be bound to different access network elements for transmission.
An apparatus for binding a data stream, the apparatus comprising:

a receiving unit, configured to receive an establishment request message or a modification request message of a data flow in a PDU session sent by the first core network element;

a binding unit, configured to bind each data stream and/or session and/or at least one tunnel to be established or to be modified to a radio bearer under a corresponding RAT according to the setup request message or the modify request message, where The at least one tunnel is used to transmit data between the core network and the access network.
The apparatus according to claim 30, wherein the establishment request message or the modification request message comprises first indication information, the first indication information comprising at least one of the following:

Corresponding relationship between the data flow indication information and the RAT indication information corresponding to the data flow to be established or to be modified;

Correspondence between the tunnel information corresponding to the at least one tunnel and the RAT indication information.
The apparatus according to claim 31, wherein the first indication information further includes indication information of whether a data flow to be established or to be modified is offloaded, and/or indication information of whether the uplink and downlink transmissions correspond to the same RAT;

The indication information of whether the offloading is used to indicate whether the data stream is transmitted under multiple RATs.
The apparatus of claim 31 or 32, wherein one data stream and/or tunnel corresponds to one RAT indication information or a plurality of RAT indication information.
The apparatus according to claim 33, wherein, when one data stream and/or the tunnel corresponds to the plurality of RAT indication information, each of the plurality of RAT indication information corresponds to one priority information.
The apparatus according to claim 30, wherein the establishment request message or the modification request message comprises second indication information, and the second indication information comprises data flow indication information corresponding to the data flow to be established or to be modified;

The device further includes: a storage unit, configured to store first configuration information, where the first configuration information includes RAT indication information corresponding to different data flow indication information ranges.
The device according to claim 35, wherein the binding unit is configured to determine, according to the second indication information and the first configuration information, a RAT corresponding to each data flow to be established or to be modified, and The data streams and/or sessions to be established or to be modified are bound to the radio bearers under the corresponding RAT.
The device according to claim 35 or 36, wherein the first configuration information is statically configured on the network side of the first access network, or the first configuration information is sent by the core network side or the network management side. The first access network network element.
The apparatus according to any one of claims 35 to 37, wherein the second indication information is generated by the first core network element based on a binding policy, the binding policy comprising at least one of the following: a data flow The attribute information, the correspondence between the PDU session and the RAT, the indication information of whether to support the multi-connection function, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.
The apparatus according to claim 38, wherein the binding policy is stored in the subscription information, and when the terminal performs registration or PDU session establishment, the receiving unit receives the subscription information, and acquires the subscription information from the subscription information. The binding strategy.
The apparatus according to any one of claims 30 to 39, wherein a RAT corresponding to the DNN and/or the S-NSSAI is configured in the subscription information, so that the first core network element determines the basis based on the subscription information. a RAT corresponding to the PDU session established or modified by the DNN and/or the S-NSSAI, where the first core network element carries a third indication in the setup request message or the modification request message sent by the network element of the first access network Information, the third indication information is used to indicate a RAT corresponding to the PDU session.
The apparatus according to any one of claims 30 to 40, wherein the binding operation of the data stream to be established or to be modified and/or the at least one tunnel and the radio bearer under the corresponding RAT is triggered by: The second core network element sends a first request message to the first core network element.
The apparatus according to claim 41, wherein the first request message is sent by the third-party server to the second core network element, and is forwarded by the second core network element to the first core network yuan.
The apparatus according to any one of claims 30 to 42, wherein the terminal sends a second request message to the first core network element or the second core network element; and/or the third party sends the second request The message is sent to the first core network element or the second core network element, and the second request message includes a binding policy, where the binding policy includes at least one of the following: each attribute information of the data flow, and a PDU session. Corresponding relationship with the RAT, indication information of whether to support the multi-connection function, and indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.
The apparatus of claim 43, wherein the binding policy is sent by the network side to the terminal.
The device according to any one of claims 30 to 44, wherein the device further comprises:

And a sending unit, configured to send an acknowledgement message to the first core network element.
The device according to any one of claims 30 to 45, wherein the receiving unit is further configured to receive fourth indication information sent by the first core network element, and determine whether to enable based on the fourth indication information. The multi-connection function is provided; or, when the at least two tunnel information sent by the first core network element is received, it is determined that the multi-connection function is enabled.
The apparatus according to claim 46, wherein said fourth indication information is further used to indicate a type of each access network element network element in the multi-connection.
The device according to claim 46 or 47, wherein when there are N tunnel information and the fourth indication information is sent to the first access network network element, one for each access network network element is established. The tunnel carries out data transmission, N≥2.
The apparatus according to claim 38, 43, or 46, wherein said multi-connection function includes at least a dual connectivity function.
The apparatus according to claim 49, wherein said dual connectivity function is a first dual connectivity function or a second dual connectivity function;

The first dual connectivity function means that at least one third core network element is respectively connected to the first access network element and the second access network element; the first access network element side The data is transmitted through the tunnel between the first access network element and the at least one third core network element, and the data of the second access network element side passes through the second access network element Tunneling with the at least one third core network element;

The second dual connectivity function means that at least one third core network element is connected to the first access network element, the first access network element and the second access network element The data of the first access network element side is transmitted through the tunnel between the first access network element and the at least one third core network element, and the second access network element The data of the side is forwarded to the network element of the first access network by the network element of the second access network, and is between the network element of the first access network and the network element of the at least one third core network. Tunnel transmission.
An apparatus for binding a data stream, the apparatus comprising:

a sending unit, configured to send a second request message to the first core network element or the second core network element, where the second request message includes a binding policy, where the binding policy includes at least one of the following: a data flow The attribute information, the correspondence between the PDU session and the RAT, the indication information of whether to support the multi-connection function, and the indication information of whether to trigger the multi-connection, wherein the attribute information includes at least one of the following: the packet characteristic information and the Application id.
The apparatus of claim 51, wherein said multi-connection function comprises at least a dual connectivity function.
The device according to claim 52, wherein the dual connectivity function is a first dual connectivity function or a second dual connectivity function;

The first dual connectivity function means that at least one third core network element is respectively connected to the first access network element and the second access network element; the first access network element side The data is transmitted through the tunnel between the first access network element and the at least one third core network element, and the data of the second access network element side passes through the second access network element Tunneling with the at least one third core network element;

The second dual connectivity function means that at least one third core network element is connected to the first access network element, the first access network element and the second access network element The data of the first access network element side is transmitted through the tunnel between the first access network element and the at least one third core network element, and the second access network element The data of the side is forwarded to the network element of the first access network by the network element of the second access network, and is between the network element of the first access network and the network element of the at least one third core network. Tunnel transmission.
The apparatus of any one of claims 51 to 53, wherein the second request message comprises a session establishment request message or a session modification request message.
The apparatus according to any one of claims 51 to 54, wherein the second request message sent by the terminal comprises a binding relationship, the one binding relationship is used to indicate that a connection and/or modification will be established. The data stream and/or session is bound to an access network element.
The device according to any one of claims 51 to 55, wherein the second request message sent by the terminal includes a correspondence, and the one correspondence is used to indicate a data flow and/or a tunnel corresponding One RAT indication information or multiple RAT indication information.
The apparatus according to claim 56, wherein, when one data stream and/or the tunnel corresponds to the plurality of RAT indication information, each of the plurality of RAT indication information corresponds to one priority information.
An apparatus for binding a data stream, the apparatus comprising:

a sending unit, configured to send a second request message to the first core network element or the second core network element, where when the second request message is sent multiple times, different second request messages are established and/or The modified data stream and/or session need to be bound to different access network elements for transmission.
A computer storage medium having stored thereon computer executable instructions for performing the method steps of any one of claims 1 to 21 when executed by a processor.
A computer storage medium having stored thereon computer executable instructions for performing the method steps of any one of claims 22 to 28, or the method steps of claim 29, when executed by a processor.