WO2017148243A1

WO2017148243A1 - Control method and system for data transmission, and data transmission method and device

Info

Publication number: WO2017148243A1
Application number: PCT/CN2017/073041
Authority: WO
Inventors: 孙国林; 汪国辉; 黄虎; 戴谦
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-03-03
Filing date: 2017-02-07
Publication date: 2017-09-08
Also published as: CN107154901B; CN107154901A

Abstract

Disclosed are a control method and system for data transmission. The method comprises: a first control network element at a core network side receiving a registration request carrying content information from a terminal, and querying whether the content information about the terminal has been registered; and when the first control network element queries that the content information about the terminal corresponds to a super real-time service flow, and the content information about the terminal is not registered, notifying a second control network element of a registration event of the content information about the terminal, so that the second control network element performs reservation processing of a dedicated bearer resource on data transmission of the super real-time service flow corresponding to the content information about the terminal. In addition, also provided are a data transmission method and device.

Description

Data transmission control method and system, data transmission method and device

Technical field

The present application relates to, but is not limited to, the field of communications, and in particular, to a data transmission control method and system, a data transmission method and apparatus.

Background technique

At present, the resource allocation mode on the core network side adopts a terminal-based session mode, and the resource allocation is for the terminal session, and the end of the session indicates that the allocated resources are to be reclaimed. The traffic flow template (TFT) is used to allocate resources for the session. The existing resource allocation and data transmission process of the core network is shown in Figure 1. The solid line in Figure 1 represents the Data Path and the dashed line represents the Control Path. The UE (User Equipment) is a terminal or user equipment, the eNB (evolved Node B) is a base station, the MME (Mobility Management Entity) is a mobility management entity, and the Policy and Charging Rules Function (PCRF) is a policy and charging rule function unit. The S-GW (Serving GateWay) is a serving gateway, and the PDN-GW (Packet Data Network Gateway) is a packet data network gateway.

However, the current QoS (Quality of Service) and Evolved Packet System (EPS) bearer policies of the core network are not able to guarantee the delay requirements of ultra-real-time service flows below 50 milliseconds (ms). The resource allocation mode based on the terminal session causes a certain delay in negotiation signaling. In addition, the current network delay guarantee for QoS only adopts a scheduling policy, a queue management policy, a rate shaping policy, and the like, and does not involve resource reservation for QoS delay guarantee.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

Embodiments of the present invention provide a data transmission control method and system, and a data transmission method and apparatus, which can ensure a transmission delay requirement of an ultra-real time service flow of 50 ms or less.

An embodiment of the present invention provides a data transmission control method, which is applied to a core network side, and includes:

Receiving, by the first control network element on the core network side, a registration request for carrying content information from the terminal, and querying whether the content information of the terminal is registered;

When the first control network element queries the content information of the terminal to correspond to the ultra-real-time service flow, and the content information of the terminal is not registered, the registration event of the content information of the terminal is And the second control network element is configured to perform the reservation processing of the dedicated bearer resource on the data transmission of the ultra-real time service flow corresponding to the content information of the terminal.

In an exemplary embodiment, the foregoing method for controlling data transmission may further include: configuring, by the second control network element, data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and configuring a dedicated need for reservation After the resource is carried, the first control network element saves the registration information of the content information of the terminal.

In an exemplary embodiment, the first control network element may be a mobility management entity (MME), and the second control network element may be a Policy and Charging Rules Function (PCRF) entity or a Software Defined Network (SDN) architecture. Under the controller.

The embodiment of the invention further provides a data transmission control method, which is applied to the core network side, and includes:

The second control network element on the core network side receives the registration event notification of the content information of the terminal;

When the second control network element queries the ultra-real-time service flow corresponding to the content information, it performs data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and configures a dedicated bearer resource that needs to be reserved.

In an exemplary embodiment, the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the configuration of the dedicated bearer resource that needs to be reserved may include:

The second control network element is a data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, determining a dedicated bearer resource that needs to be reserved, and indicating an ultra-real-time service corresponding to the content information of the terminal The physical device on the data transmission path of the stream reserves the dedicated bearer resource.

In an exemplary embodiment, the second control network element is a data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the dedicated bearer resource that needs to be reserved may be:

When the content information corresponds to an ultra-real-time service flow with a small bandwidth requirement, and there is a special commitment for data transmission reservation of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station When the resource is loaded, the second control network element extends the reserved dedicated bearer resource, so that the dedicated bearer resource reserved for the extension is the data of the ultra-real-time service flow corresponding to the content information registered by all current terminals. The sum of the resources required for transmission; or,

When the content information corresponds to an ultra-real-time service flow with a large bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the second The control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, where the new dedicated bearer resource is data corresponding to the content information owned by the base station The maximum bandwidth resource required in all terminals that transmit demand.

In an exemplary embodiment, when the second control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real time service flow corresponding to the content information of the terminal, the foregoing data transmission control method may also The second control network element adjusts the ultra-real-time service flow corresponding to the content information when the second control network element receives the bearer change request from the packet data network element PDN-GW or the edge router. Dedicated bearer resources reserved for data transmission.

In an exemplary embodiment, the second control network element may be a PCRF entity or a controller under an SDN architecture.

The embodiment of the invention further provides a data transmission method, which is applied to a terminal, and includes:

The terminal sends a registration request carrying content information to the core network side, and receives a registration response from the core network side;

After the content information of the terminal is registered on the core network side, the terminal sends the ultra-real-time service flow data carrying the content information, where the content information of the terminal is registered, and the terminal is The data transmission path of the ultra-real time service flow corresponding to the content information is reserved with a dedicated bearer resource corresponding to the data transmission of the ultra-real time service flow.

The embodiment of the invention further provides a data transmission method, which is applied to a transmission device, and includes:

The transmission device transmits a registration request for carrying content information from the terminal;

The transmitting device reserves dedicated resource resources for data transmission of the ultra-real-time service stream corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

When the transmitting device receives the ultra-real-time service stream data carrying the content information, The reserved dedicated bearer resource transmits the ultra-real time service flow data.

In an exemplary embodiment, the transmitting device reserves dedicated dedicated bearer resources for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side. Can include:

The transmitting device establishes, updates, or establishes and updates a bearer and content mapping table according to the indication information of the second control network element on the core network side, where the bearer and content mapping table saves the content for the terminal The dedicated bearer information reserved for data transmission of the ultra-real-time service stream corresponding to the information.

In an exemplary embodiment, the transmission device may include at least one of a base station, a serving gateway (S-GW), a packet data network gateway (PDN-GW), and an edge router.

In an exemplary embodiment, when the transmission device is a PDN-GW or an edge router, the foregoing data transmission method may further include: when the transmission device detects a data transmission buffer of the ultra-real-time service flow corresponding to the content information. When the quantity exceeds a predetermined threshold, the transmitting device sends a bearer change request to the second control network element on the core network side.

The embodiment of the invention further provides a data transmission control device, which is applied to the first control network element on the core network side, and includes:

a first receiving module, configured to receive a registration request for carrying content information from the terminal;

a query module, configured to query whether the content information of the terminal is registered;

a first sending module, configured to: when the query module queries that the content information of the terminal corresponds to an ultra-real-time service flow, and the content information of the terminal is not registered, then the The registration event of the content information is notified to the second control network element, so that the second control network element performs the reservation processing of the dedicated bearer resource on the data transmission of the ultra-real time service flow corresponding to the content information of the terminal.

The embodiment of the invention further provides a data transmission control device, which is applied to the second control network element on the core network side, and includes:

a second receiving module, configured to receive a registration event notification of the content information of the terminal;

a first processing module, configured to: when querying the content information corresponding to the ultra-real-time service flow, the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, the configuration needs to be reserved Dedicated bearer resources.

In an exemplary embodiment, the first processing module may be configured to configure, for the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, a dedicated bearer resource that needs to be reserved: Data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, determining a dedicated bearer resource to be reserved, and indicating a physical device pre-requisite on the data transmission path of the ultra-real-time service flow corresponding to the content information of the terminal Leave the dedicated bearer resources.

In an exemplary embodiment, the first processing module may be configured to determine, according to the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, a dedicated bearer resource that needs to be reserved:

When the content information corresponds to an ultra-real-time service flow with a small bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the extended Dedicated dedicated bearer resources, so that the dedicated bearer resources reserved for the extension are the sum of the resources required for data transmission of the ultra-real-time service flow corresponding to the content information registered by all the terminals currently; or

When the content information corresponds to an ultra-real-time service flow with a large bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, a new reserved The dedicated bearer resource is used for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, where the new dedicated bearer resource is in all terminals that have the data transmission requirement corresponding to the content information under the base station. The maximum bandwidth resource required.

In an exemplary embodiment, the first processing module may be further configured to: when receiving a bearer change request from the PDN-GW or the edge router, adjust a data transmission pre-preparation for the ultra-real-time service flow corresponding to the content information. Reserved dedicated bearer resources.

The embodiment of the present invention further provides a data transmission control system, which is applied to a core network side, and includes: a first control network element and a second control network element,

The first control network element is configured to: receive a registration request for carrying content information from the terminal, and query whether the content information of the terminal is registered; and when the content information of the terminal is queried is super When the real-time service flow is not registered, the registration event of the content information of the terminal is notified to the second control network element;

The second control network element is configured to: after receiving the notification of the registration event of the content information of the terminal, when the content information is corresponding to the ultra-real-time service flow, the content information of the terminal is Corresponding data transmission of the ultra-real-time service flow, configuring dedicated bearer resources that need to be reserved.

In an exemplary embodiment, the first control network element may be an MME, and the second control network element may be a PCRF entity or a controller under an SDN architecture.

The embodiment of the invention further provides a data transmission device, which is applied to a terminal, and includes:

The first transmission module is configured to send a registration request carrying content information to the core network side, and receive a registration response from the core network side;

a second transmission module, configured to: when the content information of the terminal is registered on the core network side, send the ultra-real-time service flow data that carries the content information, where after the content information of the terminal is registered, A dedicated bearer resource corresponding to data transmission of the ultra-real time service flow is reserved on a data transmission path of the ultra-real time service flow corresponding to the content information of the terminal.

The embodiment of the invention further provides a data transmission device, which is applied to a transmission device, and includes:

a third transmission module, configured to transmit a registration request for carrying content information from the terminal;

The second processing module is configured to reserve dedicated bearer resources for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

And a fourth transmission module, configured to: when the ultra-real-time service flow data carrying the content information is received, transmit the ultra-real-time service flow data by using the reserved dedicated bearer resource.

In an exemplary embodiment, the second processing module may be configured to: establish, update, or establish and update a bearer and content mapping table according to the indication information of the second control network element on the core network side, where the bearer Dedicated bearer information reserved for data transmission of the ultra real-time service flow corresponding to the content information of the terminal is saved with the content mapping table.

In an exemplary embodiment, the transmission device may include at least one of the following: a base station, an S-GW, a PDN-GW, an edge router.

In an exemplary embodiment, when the transmission device is a PDN-GW or an edge router, the data transmission apparatus may further include: a fifth transmission module, configured to: when the transmission device detects that the content information corresponds to When the data transmission buffer quantity of the real-time service flow exceeds a predetermined threshold, the bearer change request is sent to the second control network element on the core network side.

In addition, an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, and a control method for implementing data transmission applied to a first control network element on a core network side when the computer executable instructions are executed .

In addition, an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions, and a control method for implementing data transmission applied to a second control network element on a core network side when the computer executable instructions are executed .

In addition, an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions that implement a data transmission method applied to a terminal when the computer executable instructions are executed.

In addition, an embodiment of the present invention further provides a computer readable storage medium storing computer executable instructions that implement a data transmission method applied to a transmission device when the computer executable instructions are executed.

In the embodiment of the present invention, the first control network element on the core network side receives the registration request of the content information carried by the terminal, and queries whether the content information of the terminal is registered; when the first control network element queries When the content information of the terminal corresponds to the ultra-real-time service flow, and the content information of the terminal is not registered, the registration event of the content information of the terminal is notified to the second control network element; After receiving the notification, the control network element configures the dedicated bearer resource that needs to be reserved for the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal when the content information corresponding to the ultra-real-time service flow is queried. In the embodiment of the present invention, content partitioning is performed on the ultra-real-time service flow, and dedicated bearer resources are reserved for the ultra-real-time service flow corresponding to the content through content registration, so that the reserved dedicated bearer resources can be used to implement the data of the ultra-real-time service flow. Transmission ensures the transmission delay requirement of ultra-real-time service flows below 50ms.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

FIG. 1 is a schematic diagram of existing resource allocation and data transmission of a core network;

2 is a flowchart of a method for controlling data transmission applied to a first control network element according to an embodiment of the present invention;

3 is a method for controlling data transmission applied to a second control network element according to an embodiment of the present invention Flow chart

4 is a flowchart of a method for controlling data transmission in a non-SDN architecture according to an embodiment of the present invention;

FIG. 5 is a flowchart of a method for controlling data transmission in an SDN architecture according to an embodiment of the present invention;

FIG. 6 is a flowchart of a data transmission method applied to a terminal according to an embodiment of the present invention;

FIG. 7 is a flowchart of a data transmission method applied to a transmission device according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a content-based protocol stack according to an embodiment of the present invention; FIG.

FIG. 9 is a flowchart of data transmission signaling according to an embodiment of the present invention;

FIG. 10 is a network topology diagram of Embodiment 1 of the present invention; FIG.

FIG. 11 is a flowchart of Content registration and bearer reservation signaling of a terminal (UE) 1 according to Embodiment 1 of the present invention;

FIG. 12 is a flowchart of Content registration and bearer reservation signaling of UE2 according to Embodiment 1 of the present invention;

FIG. 13 is a flowchart of data transmission signaling according to Embodiment 1 of the present invention; FIG.

14 is a network topology diagram of Embodiment 2 of the present invention;

15 is a flowchart of Content registration and bearer reservation signaling of UE1 according to Embodiment 2 of the present invention;

16 is a flowchart of Content registration and bearer reservation signaling of UE2 according to Embodiment 2 of the present invention;

17 is a flowchart of data transmission signaling according to Embodiment 2 of the present invention;

18 is a network topology diagram of Embodiment 3 of the present invention;

19 is a flowchart of Content registration and bearer reservation signaling of UE1 according to Embodiment 3 of the present invention;

20 is a flowchart of Content registration and bearer reservation signaling of UE2 according to Embodiment 3 of the present invention;

21 is a flowchart of data transmission signaling according to Embodiment 3 of the present invention;

22 is a network topology diagram of Embodiment 4 of the present invention;

FIG. 23 is a flowchart of Content registration and bearer reservation signaling of UE1 according to Embodiment 4 of the present invention;

24 is a flowchart of Content registration and bearer reservation signaling of UE2 according to Embodiment 4 of the present invention;

25 is a flowchart of data transmission signaling according to Embodiment 4 of the present invention;

26 is a control device for data transmission applied to a first control network element according to an embodiment of the present invention. Schematic diagram

FIG. 27 is a schematic diagram of a control apparatus for data transmission applied to a second control network element according to an embodiment of the present disclosure;

28 is a schematic diagram of a data transmission apparatus applied to a terminal according to an embodiment of the present invention;

FIG. 29 is a schematic diagram of a data transmission apparatus applied to a transmission device according to an embodiment of the present invention.

Detailed

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

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

FIG. 2 is a flowchart of a method for controlling data transmission according to an embodiment of the present invention. As shown in FIG. 2, the data transmission control method provided in this embodiment is applied to the first control network element on the core network side, and the method includes the following steps:

Step 101: The first control network element on the core network side receives a registration request for carrying content information (Content) from the terminal (UE, User Equipment), and queries whether the content information of the terminal is registered.

The content information is, for example, a business name. However, this embodiment is not limited thereto. In other embodiments, the content information may be other attribute information capable of distinguishing different super real-time services.

Step 102: When the first control network element queries the content information of the terminal to correspond to the ultra-real-time service flow, and the content information of the terminal is not registered, the content information of the terminal is The registration event is notified to the second control network element, so that the second control network element performs a reservation processing of the dedicated bearer resource on the data transmission of the ultra-real time service flow corresponding to the content information of the terminal.

After the second control network element is the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the dedicated bearer resource needs to be reserved, the first control network element may save the Registration information of the content information of the terminal.

In an exemplary embodiment, the first control network element may be a mobility management entity (MME, The Mobility Management Entity, the second control network element may be a Policy and Charging Rules Function (PCRF) entity or a Controller (Controller) under the Software Defined Network (SDN) architecture.

FIG. 3 is a schematic diagram of a method for controlling data transmission according to an embodiment of the present invention. As shown in FIG. 3, the data transmission control method provided in this embodiment is applied to the second control network element on the core network side, and the method includes the following steps:

Step 201: The second control network element on the core network side receives the registration event notification of the content information of the terminal.

Step 202: The second control network element configures a dedicated bearer resource that needs to be reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal when the content information corresponding to the ultra-real-time service flow is queried.

The data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the configuration of the dedicated bearer resource that needs to be reserved may include:

When the content information corresponds to an ultra-real-time service flow with a small bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the second The control network element extends the reserved dedicated bearer resource, so that the dedicated bearer resource reserved for the extension is the sum of the resources required for data transmission of the ultra-real-time service flow corresponding to the content information registered by all current terminals; or ,

When the content information corresponds to an ultra-real-time service flow with a large bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the second The control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, where the new dedicated bearer resource is data corresponding to the content information owned by the base station Maximum bandwidth required for all terminals that transmit demand source.

In an exemplary embodiment, when the second control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real time service flow corresponding to the content information of the terminal, the foregoing data transmission control method may also The second control network element is adjusted when the second control network element receives a bearer change request from a packet data network element (PDN-GW, Packet Data Network Gateway) or an edge router (Edge Router). The dedicated bearer resource reserved for data transmission of the ultra-real time service flow corresponding to the content information.

In an exemplary embodiment, the first control network element may be a Mobility Management Entity (MME), and the second control network element may be a Policy and Charging Rules Function (PCRF, Policy and Charging Rules Function). A controller or controller under the SDN (Software Defined Network) architecture.

FIG. 4 is a flowchart of a method for controlling data transmission in a non-SDN architecture according to an embodiment of the present invention. As shown in FIG. 4, in the non-SDN architecture, the UE first performs corresponding registration for the Content, and the Flow Request (Content) is first transmitted to the base station (eNB), and the eNB forwards it to the MME for corresponding. Query, the MME determines whether the content of the UE has been registered, if not registered, transmits the registration request to the serving gateway (S-GW, Serving GateWay), and the S-GW transmits the registration request to the packet data network gateway (PDN) - GW, Packet Data Network Gateway), the PDN-GW notifies the PCRF entity of the registration event, and the PCRF entity performs a determination of the corresponding bearer reservation decision. The PCRF entity obtains a user profile (Subscription Profile) from the User Profile Attribute (SPR), and performs Content template matching according to the obtained user attribute. When the PCRF entity matches the content corresponding to the ultra-real-time service flow, it is determined that the PCRF entity needs to When the ultra-real-time service flow corresponding to the content is reserved for the bearer resource, the corresponding decision result is configured on the path through which the data transmission corresponding to the Content will pass, that is, the data transmission of the ultra-real-time service flow corresponding to the Content. Reserve dedicated bearer resources.

Then, if any UE under the same eNB has a data transmission request for the ultra-real-time service flow corresponding to the Content, if the Content registration information of the corresponding UE is saved on the MME, the data transmission of the ultra-real-time service stream corresponding to the Content may be The reserved dedicated bearer resource is directly used. If the corresponding UE does not register the content, the PCRF entity judges the Content. Broken. The PCRF entity expands the reserved dedicated bearer resources when the content corresponds to the ultra-real-time emergency service flow with a small bandwidth requirement. The reserved reservation is static reservation, that is, the reserved dedicated bearer resource is all the registration. The sum of the resources required for the data transmission of the ultra-real-time service flow corresponding to the Content; when the Content corresponds to the ultra-real-time emergency service flow with a relatively large bandwidth requirement, the PCRF entity pre-prescribes the dedicated bearer resources reserved for the Content. The data transmission of the ultra-real-time service flow corresponding to the Content corresponding to the UE is reserved. In this case, the PCRF entity dynamically adjusts the ultra-real-time service flow corresponding to the Content according to the data forwarding buffer status of the Content of the PDN-GW. The dedicated bearer resource reserved for data transmission, such reservation is dynamically reserved.

FIG. 5 is a flowchart of a method for controlling data transmission in an SDN architecture according to an embodiment of the present invention. As shown in FIG. 5, the difference between the control method of the data transmission under the SDN architecture and the method of the non-SDN architecture shown in FIG. 4 is that the controller (Controller) replaces the functions of the PCRF and the SPR under the SDN architecture. Other processes are similar, so they are not described here.

FIG. 6 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 6, the data transmission method provided in this embodiment is applied to a terminal, and includes the following steps:

Step 301: The terminal sends a registration request carrying content information to the core network side, and receives a registration response from the core network side.

Step 302: After the content information of the terminal is registered on the core network side, the terminal sends the ultra-real-time service flow data carrying the content information.

After the content information of the terminal is registered on the core network side, data corresponding to the ultra-real time service flow is reserved on the data transmission path of the ultra-real time service flow corresponding to the content information of the terminal. Dedicated bearer resources for transmission.

In other words, after the content information of the terminal is registered on the core network side, the ultra-real time service flow is reserved corresponding to the data transmission path of the ultra-real time service flow corresponding to the content information of the terminal. The dedicated bearer resource of the data transmission. Therefore, when the terminal sends the ultra-real-time service stream data corresponding to the content information, the terminal may carry the content information, so as to determine the reserved dedicated according to the content information in the subsequent transmission process. Host resources.

FIG. 7 is a flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 7, the data transmission method provided in this embodiment is applied to a transmission device, and includes the following steps:

Step 401: The transmission device transmits a registration request for carrying content information from the terminal.

Step 402: The transmitting device reserves dedicated dedicated bearer resources for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

Step 403: When the transmitting device receives the ultra-real-time service stream data carrying the content information, transmitting the ultra-real-time service stream data by using the reserved dedicated bearer resource.

The step 402 may include: the transmitting device establishes, updates, or establishes and updates a bearer and content mapping table according to the indication information of the second control network element on the core network side, where the bearer and content mapping table is saved. The dedicated bearer information reserved for data transmission of the ultra-real time service flow corresponding to the content information of the terminal.

In an exemplary embodiment, the transmission device may include at least one of the following: a base station, an S-GW, a PDN-GW, and an edge router.

Wherein, when the transmission device is a PDN-GW or an edge router, the data transmission method may further include: when the transmission device detects that the data transmission buffer amount of the ultra-real-time service flow corresponding to the content information exceeds a predetermined threshold When the value is received, the transmitting device sends a bearer change request to the second control network element on the core network side.

The second control network element may be a PCRF entity in a non-SDN architecture or a controller (Controller) in an SDN architecture.

FIG. 8 is a schematic diagram of a Content-based protocol stack according to an embodiment of the present invention. As shown in Figure 8, the non-SDN architecture is used as an example. In order to implement the matching and forwarding process of Content, a Content layer is added to the UE, the eNB, the S-GW, and the PDN-GW to implement matching for Content. The other layers in the protocol stack shown in FIG. 8 are well known to those skilled in the art, and thus are not described herein.

FIG. 9 is a flowchart of data transmission signaling according to an embodiment of the present invention. As shown in FIG. 9, when the UE transmits the ultra-real-time service stream data corresponding to the Content, the super-real-time service corresponding to the Content can be directly obtained according to the mapping result of the content and the bearer on the transmission device eNB, the S-GW, and the PDN-GW. The dedicated bearer resource reserved for the data transmission of the stream, and then the reserved dedicated bearer can be directly used to directly forward the data of the ultra-real-time service stream.

The solution of the present application is described in detail below through various embodiments.

Embodiment 1

This embodiment describes a static bearer reservation scenario in a non-SDN architecture. This scenario is mainly for the non-SDN architecture where multiple terminals (UEs) have the same type of ultra-real-time service flow data transmission requirements of less than 50ms, and this ultra-real-time service flow is a service flow with relatively small bandwidth requirements, typical application. For sudden emergency business flows. The network topology of the scenario is as shown in FIG. 10, where UE1 and UE2 have the same type of service flow (corresponding to Content1) sent to the application function (AF, Application Function) server.

In this embodiment, the Content1 registration and resource reservation process of UE1 is as shown in FIG. The UE1 first sends a registration request (Flow Register (Content1)) to the base station (eNB), and the eNB forwards the registration request to the MME to perform a corresponding Content1 query; the MME first obtains a User Profile (Subscription Profile) template from the SPR. If the matching result is Content1, the service flow registration needs to be performed, and it is determined that Content1 of UE1 is not registered. At this time, the MME forwards the registration request to the S-GW, and the S-GW forwards it to the PDN-GW, PDN- The GW sends a registration event notification to the PCRF entity. The PCRF entity also obtains a subscription profile template from the SPR to perform corresponding template matching, and performs a Bearer reservation decision. When the result of the decision is to reserve a dedicated bearer for Content1, the PCRF entity configures the decision result through the policy configuration and the Register Response information to each physical device of the corresponding transmission path of Content1. A bearer-content mapping table exists on each physical device of the transmission path. The bearer-content mapping table stores the mapping relationship between the content 1 and the bearer 1.

In this embodiment, the Content1 registration and resource reservation process of UE2 is as shown in FIG. In this case, UE2 also has Content1 to be registered. As shown in FIG. 12, UE2 first sends a registration request (Flow Register (Content1)) to the eNB, and the eNB forwards the registration request to the MME for corresponding Content1 query; MME First, the subscription profile template is obtained from the SPR to perform template matching. The matching result is Content1. The service flow registration needs to be performed, and it is determined that the Content1 of the UE2 is not registered. At this time, the MME forwards the registration request to the PCRF entity, and the PCRF entity also has the same The subscription profile template is obtained from the SPR to perform corresponding template matching. The matching result is also Content1. In view of the fact that the dedicated bearer has been reserved for Content1, and Content1 is a super real-time service flow with relatively small bandwidth requirement, PCRF is The entity uses an extended bearer to reserve a dedicated bearer for the ultra-real-time service stream data transmission corresponding to Content1 of UE2. The bearer resource reserved for the Content1 of the UE1 is extended by the addition of the Content1 of the UE2 to simultaneously satisfy the case that the UE1 and the UE2 have the data of the super-real-time service flow corresponding to the Content1, and then the PCRF entity is updated by the policy (Policy). The Update and Register Response information configures the bearer reservation result on each physical device of the transmission path, and each physical device on the transmission path updates the corresponding bearer-content mapping table. Here, the bearer-content The mapping table saves the updated mapping relationship between content 1 and bearer 1.

In this embodiment, the transmission process of the ultra-real-time service flow data corresponding to the Content1 of the UE1 and the UE2 is as shown in FIG. The content layer is added to the transmission device eNB, S-GW, and PDN-GW to implement Content matching. Since both UE1 and UE2 have registered and reserved resources for Content1, there is a bearer-content on the transmission device. Mapping table (such as Bearer1-Content1map). When the actual content corresponds to the ultra-real-time service stream data transmission, the transmission device searches for the corresponding reserved bearer through Content matching to transmit or forward the ultra-real-time service stream data.

Embodiment 2

This embodiment describes a dynamic bearer reservation scenario in a non-SDN architecture. This scenario is mainly for the non-SDN architecture where multiple terminals (UEs) have the same type of ultra-real-time service flow data transmission requirements of less than 50ms, and this ultra-real-time service flow is a service flow with relatively large bandwidth requirements, typical application. For the telemedicine scenario, the network topology of this scenario is shown in Figure 14. UE1 and UE2 have the same type of service flow (corresponding to Content2) sent to the AF server.

In this embodiment, the Content2 registration and resource reservation process of UE1 is as shown in FIG. 15. The UE1 first sends a registration request (Flow Register (Content2)) to the eNB for the Content2, and the eNB forwards the registration request to the MME to perform the query of the Content2. The MME first obtains the subscription profile template from the SPR to perform template matching, and the matching result is Content2. The service flow registration is performed, and it is determined that the Content2 of the UE1 is not registered. At this time, the MME forwards the registration request to the PCRF entity, and the PCRF entity also obtains the subscription profile template from the SPR to perform corresponding template matching, and performs a bearer pre-request. Bearer reservation decision. If the result of the decision is to reserve a dedicated bearer for Content2, the PCRF entity will The decision result is configured on each physical device of the transmission path corresponding to the content2 by using a policy configuration and a registration response (Register Response) information, and then a bearer-content mapping table exists on each physical device of the transmission path. Therefore, the bearer-content mapping table holds the mapping relationship between the content 2 and the bearer 2.

In this embodiment, the Content2 registration and resource reservation process of UE2 is as shown in FIG. 16. In this case, UE2 also has Content2 to be registered. As shown in FIG. 16, UE2 first sends a registration request (Flow Register (Content2)) to the eNB, and the eNB forwards the registration request to the MME to perform the corresponding Content2 query. The MME first obtains the subscription profile template from the SPR to perform template matching. The matching result is Content2. The service flow registration needs to be performed, and it is determined that the Content2 of the UE2 is not registered. Therefore, the MME forwards the registration request to the PCRF entity, and the PCRF entity also The subscription profile template is obtained from the SPR to perform corresponding template matching, and the matching result is also Content2. Since the dedicated bearer has been reserved for Content2 before, and Content2 is an ultra-real-time service flow with relatively large bandwidth requirement, the PCRF entity adopts the previous allocation. The reserved bearer of Content2 (allocated bearer2) is re-allocated to UE2 to reserve a dedicated bearer for Content2 of UE2. The PCRF entity calculates the bandwidth required for the data transmission corresponding to Content2 in the UE2, and compares the resources reserved for the Content2. If the required resource is larger than the resource reserved for the Content2, the larger resource is reserved for the Content2. Otherwise, the resource reserved for Content2 is directly used as a resource reserved for data transmission corresponding to Content2 in UE2.

In the actual data transmission process, it is determined whether the Allocated bearer2 extension needs to be extended by detecting the Send Buffer of the corresponding Content2 of the PDN-GW, so as to satisfy the case that the UE1 and the UE2 have the Super Real-Time Service Flow data corresponding to Content2 at the same time. . If the amount of data buffered in the PDN-GW transmission buffer exceeds a certain threshold, it is determined that the reserved bearer needs to be extended, and a Bearer Modify Event is sent to the PCRF, and then the PCRF adjusts the reserved bearer ( Adjust reservation bearer), and configure the reserved bearer modification result to each physical device of the transmission path by modifying the reservation bearer, and each physical device of the transmission path updates the corresponding bearer-content mapping table.

In this embodiment, the data transmission process of the ultra-real time service flow corresponding to Content2 of UE1 and UE2 is as shown in FIG. 17. Content is added to the transmission device eNB, S-GW, and PDN-GW. The layer implements the matching of Content. Since both UE1 and UE2 have registered and reserved resources for Content2, there is a bearer-content mapping table (such as Bearer2-Content2map) on the transmission device. When the data of the ultra-real-time service flow corresponding to the actual content is transmitted, the transmission device searches for the corresponding reserved bearer through Content matching to transmit or forward the ultra-real-time service flow data. Different from the first embodiment, there is a process of determining a transmission buffer on the PDN-GW. If the amount of data buffered in the PDN-GW transmission buffer exceeds a certain threshold, it is determined that the reserved bearer needs to be extended. Sending a Bearer Modify Event to the PCRF, then the PCRF adjusts the reserve reservation bearer and configures the reserved bearer modification result to each physical of the transmission path by modifying the reservation bearer. On the device, each physical device of the transmission path updates the corresponding bearer-content mapping table.

Embodiment 3

This embodiment describes a static bearer reservation scenario in the SDN architecture. This scenario is mainly for a plurality of terminals (UEs) in the SDN architecture having the same type of ultra-real-time service stream data transmission requirements of less than 50 ms, and the ultra-real-time service stream is a service stream with a relatively small bandwidth requirement, and the typical application is Sudden urgency traffic, the network topology of this scenario is shown in Figure 18. UE1 and UE2 have the same type of traffic (corresponding to Content1) sent to the AF server.

In this embodiment, the Content1 registration and resource reservation process of UE1 is as shown in FIG. The UE1 first sends a registration request (Flow Register (Content1)) to the eNB, and the eNB forwards the registration request to the MME to perform the query of the Content1. The MME first obtains the subscription profile template from the controller (Controller) to perform template matching, and the matching result is obtained. For the content1, the service flow registration is required, and the content1 of the UE1 is not registered. Therefore, the MME forwards the registration request to the controller, and the controller also obtains the subscription profile template to perform corresponding template matching, and performs bearer reservation. Bearer reservation decision. If the result of the decision is to reserve a dedicated bearer for Content1, the decision result is configured to each physical device of the transmission path through a policy installation and a Register Response, and then on each physical device of the transmission path. There is a bearer-content mapping table. Here, the bearer-content mapping table stores the mapping relationship between the content 1 and the bearer 1.

In this embodiment, the Content1 registration and resource reservation process of UE2 is as shown in FIG. 20. In this way, UE2 also has Content1 to be registered, as shown in FIG. 20, UE2 will be the same as UE1 first. Sending a registration request (Flow Register (Content1)) to the eNB, the eNB forwards the registration request to the MME to perform the query of the Content1. The MME first obtains the subscription profile template from the Controller to perform template matching, and the matching result is Content1, and the service flow is required. Registering and judging that Content1 of UE2 has not been registered, so the MME will forward the registration request to the Controller, and the Controller will also obtain the subscription profile template for the corresponding template matching. The matching result is also Content1, since the content1 has been reserved before. A dedicated bearer, and Content1 is an ultra-real-time service flow with a relatively small bandwidth requirement. Therefore, an extended bearer is used to reserve a bearer for data transmission of the ultra-real-time service flow corresponding to Content1 of UE2. The bearer resource reserved for Content1 of UE1 is extended by the addition of Content1 of UE2 to satisfy the situation that UE1 and UE2 have the data of the super-real-time service flow corresponding to Content1 at the same time. After that, the Controller will pass the policy update (Policy Update). And the registration response (Register Response) configures the bearer reservation result to each physical device of the transmission path, and each physical device on the transmission path updates the corresponding bearer-content mapping table, where the bearer-content mapping table is saved. The updated mapping relationship between content 1 and bearer 1.

In this embodiment, the data transmission process of the ultra-real time service flow corresponding to Content1 of UE1 and UE2 is as shown in FIG. 21. In the transmission device eNB, S-GW, and edge router, the Content layer is added to implement Content matching. Since both UE1 and UE2 have registered and reserved resources for Content1, the transmission device exists. Bearer-content mapping table (such as Bearer1-Content1map). When the actual content corresponds to the ultra-real-time service stream data transmission, the transmission device searches for the corresponding reserved bearer through Content matching to transmit or forward the ultra-real-time service stream data.

Embodiment 4

This embodiment describes a dynamic bearer reservation scenario in the SDN architecture. This scenario is mainly for the multiple-terminal (UE) of the SDN architecture, which has the same type of ultra-real-time service flow data transmission requirements of less than 50ms, and the ultra-real-time service flow is a service flow with relatively large bandwidth requirements. The typical application is In the telemedicine scenario, the network topology of this scenario is shown in Figure 22. UE1 and UE2 have the same type of service flow (corresponding to Content2) sent to the AF server.

In this embodiment, the Content2 registration and resource reservation process of UE1 is as shown in FIG. 23. UE1 first sends a registration request (Flow Register (Content2)) to eNB for Content2, eNB Forwarding the registration request to the MME for the corresponding Content2 query, the MME first obtains the subscription profile template from the controller (Controller) to perform template matching, and the matching result is Content2, and the service flow registration is required, and the Content2 of UE1 is not registered. Therefore, the MME forwards the registration request to the Controller, and the Controller also obtains the Subscription Profile template for the corresponding template matching and makes a Bearer reservation decision. If the result of the decision is to reserve a dedicated bearer for Content2, the decision result is configured to each physical device of the transmission path through a policy installation and a registration response, and then each physical device of the transmission path is transmitted. There is a bearer-content mapping table on the top. Here, the bearer-content mapping table stores the mapping relationship between the content 2 and the bearer 2.

In this embodiment, the Content2 registration and resource reservation process of UE2 is as shown in FIG. 24. In this case, UE2 first sends a registration request (Flow Register (Content2)) to the eNB, and the eNB forwards the registration request to the MME to perform the corresponding Content2 query. The MME first obtains the subscription profile template from the Controller to perform template matching. The match result is Content2, and the service flow registration is required, and it is determined that the Content2 of the UE2 is not registered. Therefore, the MME forwards the registration request to the Controller, and the Controller also obtains the subscription profile template to perform corresponding template matching, and the matching result is also Content2. In view of the fact that the dedicated bearer has been reserved for Content2, and Content2 is an ultra-real-time service flow with a relatively large bandwidth requirement, the method of reassigning the reserved bearer (allocated bearer2) previously allocated to Content2 to UE2 is adopted. UE2's Content2 reserved bearer. The controller calculates the bandwidth required for the data transmission corresponding to the Content2 in the UE2, and compares the resources reserved for the Content2. If the required resource is larger than the resource reserved for the Content2, the device reserves a larger resource for the Content2. Otherwise, the resource reserved for Content2 is directly used as the reserved resource for data transmission corresponding to Content2 in UE2.

In the actual data transmission process, it is determined whether the Allocated bearer2 extension needs to be extended by detecting the Send Buffer of the corresponding Content2 of the Edge Router, so as to satisfy the super-real-time service flow data corresponding to the Content2 of the UE1 and the UE2. The situation of sending. If the amount of data cached in the edge of the Edge Router exceeds a certain threshold, it is determined that the reserved bearer needs to be extended, and a Bearer Modify Event is sent to the Controller, and then the Controller adjusts the reserved bearer (adjust reservation) Bearer), And configuring the reserved bearer modification result to be configured on each physical device of the transmission path by modifying the reservation bearer, and each physical device of the transmission path updates the corresponding bearer-content mapping table (such as Bearer2-Content2map). .

In this embodiment, the data transmission process of the ultra-real time service flow corresponding to Content2 of UE1 and UE2 is as shown in FIG. 25. In the transmission device eNB, S-GW, and Edge Router, the Content layer is added to implement Content matching. Since UE1 and UE2 both perform registration and resource reservation operations for Content2, there is a bearer-content mapping on the transmission device. Table (such as Bearer2-Content2map). When the actual content corresponds to the ultra-real-time service stream data transmission, the transmission device searches for the corresponding reserved bearer through Content matching to transmit or forward the ultra-real-time service stream data. Different from the third embodiment, there is a process of judging the sending buffer on the edge router. If the amount of data buffered in the edge of the edge router exceeds a certain threshold, it is determined that the reserved bearer needs to be extended, and the bearer will be sent. After the Bearer Modify Event is sent to the Controller, the Controller adjusts the reserve reservation bearer and configures the reservation bearer modification result to each physical device of the transmission path by modifying the reservation bearer. Each physical device of the transmission path updates the corresponding bearer-content mapping table.

In addition, the embodiment of the present invention further provides a data transmission control system, which is applied to a core network side, and includes: a first control network element and a second control network element; and the first control network element is configured to receive the carried from the terminal. a request for registration of the content information, and querying whether the content information of the terminal is registered; and, when the content information of the terminal is queried corresponding to the ultra-real-time service flow, and is not registered, the terminal is The registration event of the content information is notified to the second control network element; the second control network element is configured to receive the registration event notification, and when the content information is corresponding to the ultra-real-time service flow, the terminal is The data transmission of the ultra-real-time service flow corresponding to the content information, and the dedicated bearer resource that needs to be reserved is configured.

The second control network element may be configured to: perform data transmission of the ultra-real-time service flow corresponding to the content information of the terminal in the following manner, and configure a dedicated bearer resource that needs to be reserved: Data transmission of the ultra-real-time service flow corresponding to the content information, determining the dedicated bearer resource to be reserved, and instructing the physical device on the data transmission path of the ultra-real-time service flow corresponding to the content information of the terminal to reserve the dedicated Host resources.

In an exemplary embodiment, the second control network element may be configured to:

In an exemplary embodiment, the second control network element may be further configured to: when receiving a bearer change request from the PDN-GW or the edge router, adjust data transmission for the ultra-real-time service flow corresponding to the content information. Reserved dedicated bearer resources.

The first control network element may be further configured to: after the second control network element is a data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and configuring a dedicated bearer resource that needs to be reserved And storing registration information of the content information of the terminal.

In addition, the embodiment of the present invention further provides a data transmission control apparatus, which is applied to a first control network element on a core network side. As shown in FIG. 26, the data transmission control apparatus provided in this embodiment includes:

The first receiving module 501 is configured to receive a registration request for carrying content information from the terminal;

The querying module 502 is configured to query whether the content information of the terminal is registered;

The first sending module 503 is configured to: when the query module 502 queries that the content information of the terminal corresponds to an ultra-real-time service flow, and the content information of the terminal is not registered, then the terminal Notifying the second control network element of the registration event of the content information, so that the second control network element is dedicated to data transmission of the ultra-real time service flow corresponding to the content information of the terminal Reserve processing of bearer resources.

In addition, the embodiment of the present invention further provides a data transmission control apparatus, which is applied to a second control network element on the core network side. As shown in FIG. 27, the data transmission control apparatus provided in this embodiment includes:

The second receiving module 601 is configured to receive a registration event notification of the content information of the terminal;

The first processing module 602 is configured to: when querying the content information corresponding to the ultra-real-time service flow, configure data transmission for the ultra-real-time service flow corresponding to the content information of the terminal, and configure a dedicated bearer resource that needs to be reserved.

The first processing module 602 may be configured to: perform data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and configure a dedicated bearer resource that needs to be reserved: Data transmission of the ultra-real-time service flow corresponding to the content information, determining the dedicated bearer resource to be reserved, and instructing the physical device on the data transmission path of the ultra-real-time service flow corresponding to the content information of the terminal to reserve the dedicated Host resources.

The first processing module 602 can be configured as:

In an exemplary embodiment, the first processing module 602 may be further configured to: when receiving a bearer change request from a PDN-GW or an edge router, adjust data transmission of the ultra-real-time service flow corresponding to the content information. Reserved dedicated bearer resources.

In addition, the embodiment of the present invention further provides a data transmission device, which is applied to a terminal, as shown in FIG. 28, and includes:

The first transmission module 701 is configured to send a registration request carrying content information to the core network side, and receive a registration response from the core network side;

The second transmission module 702 is configured to send the ultra-real-time service flow data carrying the content information after the content information of the terminal is registered on the core network side.

After the content information of the terminal is registered, a dedicated bearer corresponding to the data transmission of the ultra-real time service flow is reserved on a data transmission path of the ultra-real time service flow corresponding to the content information of the terminal. Resources.

In addition, the embodiment of the present invention further provides a data transmission device, which is applied to a transmission device, as shown in FIG. 29, and includes:

The third transmission module 801 is configured to transmit a registration request for carrying content information from the terminal;

The second processing module 802 is configured to reserve dedicated bearer resources for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

The fourth transmission module 803 is configured to: when the ultra-real-time service flow data carrying the content information is received, transmit the ultra-real-time service flow data by using the reserved dedicated bearer resource.

The second processing module 802 may be configured to: establish, update, or establish and update a bearer and content mapping table according to the indication information of the second control network element on the core network side, where the bearer and content mapping table And storing dedicated bearer information reserved for data transmission of the ultra-real time service flow corresponding to the content information of the terminal.

In addition, the processing of the data transmission control system, the data transmission control device, and the data transmission device may be referred to the foregoing method embodiments, and thus will not be described herein.

In an actual application, the foregoing first processing module, second processing module, and query module are, for example, The first receiving module, the second receiving module, the first transmitting module, and the first to fifth transmitting modules are, for example, wireless or wired communication units.

In summary, the embodiment of the present invention specifically performs fine-grained Content partitioning on ultra-real-time service flows below 50ms, and implements transmission of ultra-real-time service flows below 50ms by means of dedicated bearer reservation based on Content registration. . Moreover, in order to implement the dedicated bearer reserved according to the content matching, a content layer is added to each transmission device for content matching, and then the corresponding reserved bearer is determined to implement the transmission of the ultra-real-time service stream data corresponding to the Content.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks/units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical units; for example, one physical component may have multiple functions, or one function or step may be composed of several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and not Remove the media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

The basic principles and main features of the present application and the advantages of the present application are shown and described above. The present application is not limited by the above-described embodiments, and the above-described embodiments and the description are only for explaining the principles of the present application, and various changes and modifications may be made to the present application without departing from the spirit and scope of the application. And improvements are within the scope of the claimed invention.

Industrial applicability

The embodiment of the present application provides a data transmission control method, device, and system, and a data transmission method and device, which perform content division on an ultra-real-time service flow, and reserve a dedicated bearer resource for the ultra-real-time service flow corresponding to the content through content registration. Therefore, the reserved dedicated bearer resources can be used to realize the data transmission of the ultra-real-time service flow, and the transmission delay requirement of the ultra-real-time service flow below 50 ms is ensured.

Claims

A data transmission control method is applied to the core network side, including:

Receiving, by the first control network element on the core network side, a registration request for carrying content information from the terminal, and querying whether the content information of the terminal is registered;

When the first control network element queries the content information of the terminal to correspond to the ultra-real-time service flow, and the content information of the terminal is not registered, the registration event of the content information of the terminal is And the second control network element is configured to perform the reservation processing of the dedicated bearer resource on the data transmission of the ultra-real time service flow corresponding to the content information of the terminal.
The data transmission control method according to claim 1, wherein the data transmission control method further comprises: configuring, by the second control network element, data transmission of the ultra-real time service flow corresponding to the content information of the terminal After the dedicated bearer resource needs to be reserved, the first control network element saves the registration information of the content information of the terminal.
The method for controlling data transmission according to claim 1 or 2, wherein the first control network element is a mobility management entity MME, and the second control network element is a policy and charging rule function PCRF entity or a software defined network. Controller under the SDN architecture.
A data transmission control method is applied to the core network side, including:

The second control network element on the core network side receives the registration event notification of the content information of the terminal;

When the second control network element queries the ultra-real-time service flow corresponding to the content information, it performs data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and configures a dedicated bearer resource that needs to be reserved.
The data transmission control method according to claim 4, wherein the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the dedicated bearer resources that need to be reserved are configured, including:

The second control network element is a data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, determining a dedicated bearer resource that needs to be reserved, and indicating an ultra-real-time service corresponding to the content information of the terminal The physical device on the data transmission path of the stream reserves the dedicated bearer resource.
The data transmission control method according to claim 5, wherein said second control network The metadata is a data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, and the dedicated bearer resource that needs to be reserved is determined, including:

When the content information corresponds to an ultra-real-time service flow with a small bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the second The control network element extends the reserved dedicated bearer resource, so that the dedicated bearer resource reserved for the extension is the sum of the resources required for data transmission of the ultra-real-time service flow corresponding to the content information registered by all current terminals; or ,

When the content information corresponds to an ultra-real-time service flow with a large bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the second The control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, where the new dedicated bearer resource is data corresponding to the content information owned by the base station The maximum bandwidth resource required in all terminals that transmit demand.
The data transmission control method according to claim 6, wherein when the second control network element reserves a new dedicated bearer resource to the data transmission of the ultra-real time service stream corresponding to the content information of the terminal, the data is The control method of the transmission further includes: when the second control network element receives the bearer change request from the packet data network element PDN-GW or the edge router, the second control network element adjusts corresponding to the content information Dedicated bearer resources reserved for data transmission of ultra real-time service flows.
The data transmission control method according to any one of claims 4 to 7, wherein the second control network element is a policy and charging rule function PCRF entity or a software defined network SDN architecture controller.
A data transmission method is applied to a terminal, including:

The terminal sends a registration request carrying content information to the core network side, and receives a registration response from the core network side;

After the content information of the terminal is registered on the core network side, the terminal sends the ultra-real-time service flow data carrying the content information, where the content information of the terminal is registered, and the terminal is The data transmission path of the ultra-real time service flow corresponding to the content information is reserved with a dedicated bearer resource corresponding to the data transmission of the ultra-real time service flow.
A data transmission method applied to a transmission device, comprising:

The transmission device transmits a registration request for carrying content information from the terminal;

The transmitting device reserves dedicated resource resources for data transmission of the ultra-real-time service stream corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

And when the transmitting device receives the ultra-real-time service stream data carrying the content information, transmitting the ultra-real-time service stream data by using the reserved dedicated bearer resource.
The data transmission method according to claim 10, wherein the transmission device transmits data of the ultra-real-time service stream corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side, Reserve dedicated bearer resources, including:

The transmitting device establishes, updates, or establishes and updates a bearer and content mapping table according to the indication information of the second control network element on the core network side, where the bearer and content mapping table saves the content for the terminal The dedicated bearer information reserved for data transmission of the ultra-real-time service stream corresponding to the information.
The data transmission method according to claim 10 or 11, wherein the transmission device comprises at least one of a base station, a serving gateway S-GW, a packet data network gateway PDN-GW, and an edge router.
The data transmission method according to claim 12, wherein when the transmission device is a PDN-GW or an edge router, the data transmission method further includes: when the transmission device detects the ultra-real time service flow corresponding to the content information When the data transmission buffer exceeds a predetermined threshold, the transmitting device sends a bearer change request to the second control network element on the core network side.
A data transmission control device is applied to a first control network element on a core network side, including:

a first receiving module, configured to receive a registration request for carrying content information from the terminal;

a query module, configured to query whether the content information of the terminal is registered;

a first sending module, configured to: when the query module queries that the content information of the terminal corresponds to an ultra-real-time service flow, and the content information of the terminal is not registered, then the The registration event of the content information is notified to the second control network element, so that the second control network element performs the reservation processing of the dedicated bearer resource on the data transmission of the ultra-real time service flow corresponding to the content information of the terminal.
A data transmission control device is applied to a second control network element on a core network side, including:

a second receiving module, configured to receive a registration event notification of the content information of the terminal;

The first processing module is configured to: when querying the content information corresponding to the ultra-real-time service flow, configure data transmission for the ultra-real-time service flow corresponding to the content information of the terminal, and configure a dedicated bearer resource that needs to be reserved.
The control device for data transmission according to claim 15, wherein the first processing module is configured to perform data transmission of the ultra-real-time service stream corresponding to the content information of the terminal in the following manner, and the configuration needs to be reserved. Dedicated bearer resource: data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, determining a dedicated bearer resource to be reserved, and indicating data of the ultra-real-time service flow corresponding to the content information of the terminal The physical device on the transmission path reserves the dedicated bearer resource.
The control device for data transmission according to claim 16, wherein the first processing module is configured to determine, for the data transmission of the ultra-real time service flow corresponding to the content information of the terminal, the data to be reserved. Dedicated bearer resources:

When the content information corresponds to an ultra-real-time service flow with a small bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, the extended Dedicated dedicated bearer resources, so that the dedicated bearer resources reserved for the extension are the sum of the resources required for data transmission of the ultra-real-time service flow corresponding to the content information registered by all the terminals currently; or

When the content information corresponds to an ultra-real-time service flow with a large bandwidth requirement, and there is a dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information of the other terminal under the same base station, a new reserved The dedicated bearer resource is used for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal, where the new dedicated bearer resource is in all terminals that have the data transmission requirement corresponding to the content information under the base station. The maximum bandwidth resource required.
The control device for data transmission according to claim 17, wherein said first processing module is further configured to: when receiving a bearer change request from a packet data network element PDN-GW or an edge router, adjusting The dedicated bearer resource reserved for data transmission of the ultra-real-time service flow corresponding to the content information.
A data transmission control system is applied to the core network side, including: a first control network element and a second control network element,

The first control network element is configured to: receive a registration request for carrying content information from the terminal, and query whether the content information of the terminal is registered; and when the content information of the terminal is queried is super When the real-time service flow is not registered, the registration event of the content information of the terminal is notified to the second control network element;

The second control network element is configured to: after receiving the notification of the registration event of the content information of the terminal, when the content information is corresponding to the ultra-real-time service flow, the content information of the terminal is Corresponding data transmission of the ultra-real-time service flow, configuring dedicated bearer resources that need to be reserved.
The control system for data transmission according to claim 19, wherein the first control network element is a mobility management entity MME, and the second control network element is a policy and charging rule function PCRF entity or a software defined network SDN architecture. Under the controller.
A data transmission device is applied to a terminal, including:

The first transmission module is configured to send a registration request carrying content information to the core network side, and receive a registration response from the core network side;

a second transmission module, configured to: when the content information of the terminal is registered on the core network side, send the ultra-real-time service flow data that carries the content information, where after the content information of the terminal is registered, A dedicated bearer resource corresponding to data transmission of the ultra-real time service flow is reserved on a data transmission path of the ultra-real time service flow corresponding to the content information of the terminal.
A data transmission device is applied to a transmission device, including:

a third transmission module, configured to transmit a registration request for carrying content information from the terminal;

The second processing module is configured to reserve dedicated bearer resources for data transmission of the ultra-real-time service flow corresponding to the content information of the terminal according to the indication information of the second control network element on the core network side;

And a fourth transmission module, configured to: when the ultra-real-time service flow data carrying the content information is received, transmit the ultra-real-time service flow data by using the reserved dedicated bearer resource.
The data transmission device according to claim 22, wherein the second processing module is configured to establish, update, or establish and update a bearer and content mapping table according to the indication information of the second control network element on the core network side, wherein The bearer and content mapping table stores the location for the terminal Dedicated bearer information reserved for data transmission of the ultra-real-time service stream corresponding to the content information.
The data transmission device according to claim 22 or 23, wherein the transmission device comprises at least one of a base station, a serving gateway S-GW, a packet data network gateway PDN-GW, and an edge router.
The data transmission device according to claim 24, wherein when the transmission device is a PDN-GW or an edge router, the data transmission device further includes: a fifth transmission module, configured to detect the content information when the transmission device detects When the data transmission buffer of the corresponding ultra-real-time service flow exceeds a predetermined threshold, the bearer change request is sent to the second control network element on the core network side.