WO2016062018A1

WO2016062018A1 - Data transmission method and device

Info

Publication number: WO2016062018A1
Application number: PCT/CN2015/075717
Authority: WO
Inventors: 汤德龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-10-24
Filing date: 2015-04-01
Publication date: 2016-04-28
Also published as: CN105592567A

Abstract

A data transmission method and device. The method comprises: before a user demands a service, a network side establishes for a user equipment (UE) wireless configuration required for completing the service. The method further comprises: when the user demands the service, the UE establishes an air-interface link and sends data to the network side by using the established air-interface link; and the network side determines, according to the data and the wireless configuration, a radio link used for bearing the user service, and forwards the data to the Internet according to the determined radio link. By means of the solution of the present invention, the network side determines the radio link according to the pre-established wireless configuration, and forwards the data to the Internet according to the determined radio link, so that the uplink and downlink connection does not need to be realized by using multiple pieces of signaling before the data is sent, and the interaction delay of the service data is shortened.

Description

Method and device for transmitting data

Technical field

This document relates to the technical field of transmitting data, and more particularly to a method and apparatus for transmitting data.

Background technique

The user equipment (UE, User Equipment) uses the wireless system to access the Internet. Before the Internet data can be correctly forwarded by the wireless system, the UE first performs a series of interactions with the ground part of the wireless system through the air interface to establish a wireless channel.

1 is a flow chart of a related method of transmitting data. Taking the Long Term Evolution (LTE) system as an example, referring to FIG. 1, the related methods for establishing a service chain generally include:

Step 100: The UE initiates a service request to an evolved Node B (eNB, Evolved Node B).

Step 101: The eNB forwards the service request to the mobility management entity (MME, Mobility Management Entity).

Step 102: The MME sends an initial context setup request to the eNB.

Step 103: The eNB and the UE establish a radio bearer.

Step 104: At this time, the uplink of the UE is ready, and if the UE has data, it can be sent uplink;

Step 105: The eNB sends an initial context setup response to the MME.

Step 106: The MME sends a bearer modification request to a serving gateway (SGW, Service Gateway).

Step 107: The SGW sends a bearer modification response to the MME.

Step 108: The downlink is opened, and the UE can send and receive data with the Internet.

In the related method for transmitting data, a service chain needs to be established before data transmission, and multiple signaling is needed in the process of establishing a service chain to open up uplink and downlink, thereby causing data interaction delay. Longer.

Summary of the invention

The technical problem to be solved by the present invention is to provide a method for transmitting data to shorten the interaction delay of data.

In order to achieve the above objectives, the following technical solutions are adopted:

A method for transmitting data, before the user has a service requirement, the network side establishes a wireless configuration required for the user equipment UE to complete the service, and further includes:

When the user has a service requirement, the UE establishes an air interface link, and uses the established air interface link to send data to the network side;

The network side determines a wireless link for carrying user services according to the data and the wireless configuration, and forwards the data to the Internet according to the determined wireless link.

Optionally, the step of the network side establishing, for the user equipment UE, the wireless configuration required to complete the service includes:

The network side establishes, in the UE access process, a wireless configuration required for completing the service for the UE.

Optionally, the UE access process includes: an attach process, and/or a location update process.

Optionally, the wireless configuration includes a match corresponding to the wireless link.

Optionally, the step of determining, by the network side, the wireless link for carrying user services according to the data and the wireless configuration includes:

The network side looks up a wireless link in the wireless configuration that matches a match of the data.

A device for transmitting data, comprising a storage module, a receiving module, a determining module and a sending module, wherein:

The storage module is configured to: save, before the user has no service requirement, a wireless configuration required to complete the service established by the user equipment UE;

The receiving module is configured to: receive data from the UE;

The determining module is configured to: determine, according to the data and the wireless configuration, a wireless link for carrying user services;

The sending module is configured to forward data to the Internet according to the determined wireless link.

Optionally, the determining module is configured to determine a wireless link for carrying user services according to the data and the wireless configuration as follows:

A wireless link that matches a match of the data is looked up in the wireless configuration.

A computer program comprising program instructions which, when executed by a computer, cause the computer to perform any of the methods described above for transmitting data.

A carrier carrying the computer program as described.

Compared with the related art, the technical solution of the present invention includes: before the user has a service requirement, the network side establishes a wireless configuration required for the user equipment UE to complete the service; and the method further includes: when the user has a service requirement, the UE establishes an air interface link and utilizes The established air interface link sends data to the network side; the network side determines a wireless link for carrying user services according to the data and the wireless configuration, and forwards the data to the Internet according to the determined wireless link. With the solution of the present invention, the network side determines the wireless link according to the pre-established wireless configuration, and forwards the data to the Internet according to the determined wireless link, so that it is not necessary to use multiple signaling to open up the uplink and before using the data. Downlink, shortening the interaction delay of business data.

BRIEF abstract

The drawings in the following description of the embodiments of the present invention are intended to illustrate the invention, and are not intended to limit the scope of the invention.

1 is a flow chart of a related method of transmitting data;

2 is a flowchart of a method for transmitting data according to an embodiment of the present invention;

3 is a flowchart of a method for a UE to attach to a core network according to an embodiment of the present invention;

4 is a flowchart of a method for updating a tracker according to an embodiment of the present invention;

5 is a flow chart of a specific embodiment of a method of transmitting data according to the present invention;

FIG. 6 is a schematic structural diagram of an apparatus for transmitting data according to an embodiment of the present invention.

Preferred embodiment of the invention

The invention is further described below in conjunction with the accompanying drawings and is not intended to limit the scope of the invention. It should be noted that the embodiments in the present application and the various manners in the embodiments may be combined with each other without conflict.

Referring to FIG. 2, an embodiment of the present invention provides a method for transmitting data, including:

Step 200: Before the user has a service requirement, the network side establishes, for the user equipment UE, the wireless configuration required to complete the service.

In this step, the network side can establish a radio configuration required for completing the service for the UE in the UE access process.

The UE access process may be any process before the user has a service requirement, for example, an attach process, a location update process, and the like.

In this step, the wireless configuration includes at least a wireless link for carrying user services.

The wireless link includes at least a connection relationship of the service chain of the UE. The connection relationship of the service chain refers to the connection relationship between the access network element and the core network element.

In this step, the wireless configuration may further include other parameters required by the UE to complete the service, such as charging parameters, legal listening parameters, and the like.

For the LTE system, the access network element is an eNB.

The network element of the access network may be the network element of the access network where the UE is currently located, and may also include the network element of the access network near the UE. Each access network element corresponds to one or more service chains. The access network element in the vicinity of the UE may be the access network element in the tracking area list (TAL, Track Area List) corresponding to the current location of the UE, or the distance from the current location of the UE is less than or equal to the preset. The access network element of the threshold, or the access network element corresponding to the location frequently visited by the UE obtained by tracking the behavior of the UE, and the like.

The core network element includes a service gateway (SGW, Service Gateway) and public data. Network Gateway (PGW, Public Data Network Gateway).

Specifically, the connection relationship of the service chain refers to that when the UE interacts with the Internet through the access network element and the core network element, the access network element and the core network element create a general packet radio service tunneling protocol for the UE. Configuration parameters involved in the tunnel of the GTPU (General Packet Radio Service Tunneling Protocol User Plane). For example, the Tunnel Endpoint Identifier (TEID), the Quality of Service (QIS) parameter, the configuration parameters of the relevant air interface between the UE and the access network element, The UE ID that activates the configuration entry, and so on.

In this step, the network side may establish a radio configuration required for the UE to complete the service in the UE access process. The UE access process may be an attach process, a location update process, or the like.

In this step, the wireless configuration may further include a matching item corresponding to the wireless link, and the matching item corresponding to the wireless link may be an Internet Protocol (IP) address or a Quality of Service (QoS) of the UE.

In this step, any network element (such as MME, or SGW, or PGW) in the core network may be used to establish a radio configuration required for the UE to complete the service.

The method also includes:

Step 201: When the UE has a service requirement, establish an air interface link, and use the established air interface link to send data to the network side.

In this step, the data may be data for carrying the user service content, or may be a specially constructed packet for determining the link, where the packet includes a matching item required for determining the link, but does not include the user service. content.

For example, if the UE is in the paging response state, the UE may send a Packet Internet Grope packet (Ping, Packet Internet Grope) to the network side, and the IP address in the Ping packet is used to determine the wireless link.

Step 202: The network side determines a wireless link for carrying user services according to the data and the wireless configuration, and forwards the data to the Internet according to the determined wireless link.

In this step, if there is no actual user service content in the data received by the network side, the network side may actively discard the data after determining the wireless link, or according to the determined wireless link. The data is forwarded to the Internet and the data is discarded by the relevant network elements on the Internet.

In this step, the network side determines, according to the data and the wireless configuration, the wireless link used to carry the user service, including:

The network side looks up the wireless link in the wireless configuration that matches the match of the data.

The method of the present invention will now be described in detail by way of specific examples.

3 is a flow chart of a method in which a UE attaches to a core network. Referring to FIG. 3, taking an LTE system as an example, the method includes:

Step 300: The UE sends an attach request to the eNB.

Step 301: The eNB forwards an attach request to the MME.

Step 302: The UE performs security authentication by using a core network element such as an eNB and an MME.

Step 303: The MME generates a radio configuration corresponding to the UE according to the current location of the UE, where the wireless configuration includes: an activation identifier (IP address of the UE), a connection relationship involved in the UE service process, and other parameters required by the UE to complete the service, for example, Fee parameters, legal listening parameters, etc.;

Step 304: The MME distributes the wireless configuration to the eNB, other eNBs under the TAL where the UE is located, and other network elements in the Evolved Packet Core (EPC).

In this step, all configuration data may be copied and distributed, or different network elements may be distributed to a wireless configuration related only to its own network element.

Step 305, the completion of the connection, and the establishment of the session;

Step 306: If the UE and the Internet have actual service requirements, perform service data transmission.

Step 307, the service data transmission is completed, and the session is released.

4 is a flow chart of a method of Track Area Update (TAU). As shown in FIG. 4, taking the LTE system as an example, the method includes:

Step 400: In the Idle state, the UE enters a new area, and the Tracking Area Identifier (TAI) corresponding to the area obtained by the UE from the wireless network in this area is not in the saved TAL.

Step 401: The UE sends a TAU request to the eNB where the UE is located, and the TAU request is generally attached to the In the RRC (Radio Resource Control) message;

Step 402: The eNB where the UE is located forwards the TAU request to the MME.

Step 403: The UE performs security authentication by using a core network element such as an eNB and an MME where the UE is located.

Step 404: The MME generates a radio configuration corresponding to the UE according to the current location of the UE, where the wireless configuration includes: determining the identifier (the IP address of the UE), the connection relationship involved in the UE service process, and other parameters required by the UE to complete the service, for example, Fee parameters, legal listening parameters, etc.;

Step 405: The MME distributes the wireless configuration to the eNB where the UE is located, the eNB (where the TAL is different from the TAL before the TAU), and other network elements in the EPC.

Step 406: The MME responds to the TAU accept message to the UE by the eNB where the UE is located, and the TAU is completed.

Figure 5 is a flow chart of a method of transmitting data. As shown in FIG. 5, taking the LTE system as an example, the method includes:

Step 500: The UE has a service requirement, and establishes an air interface link.

Step 501: The UE sends data to the eNB by using the established air interface link.

Step 502: The eNB receives the data of the UE, and searches for the corresponding wireless link in the wireless configuration by using the source IP address in the UE data. If found, the process proceeds to step 503; if not, the process ends.

Step 503: The eNB completes the necessary processing of the data according to the found wireless link (for example, the GTPU protocol), and encapsulates the data according to the connection relationship in the found wireless link, and then forwards the data to the SGW.

Step 504: The SGW receives the data of the UE, searches for the corresponding wireless link in the wireless configuration by using the source IP address in the UE data, and if yes, proceeds to step 505; if not, ends the process.

Step 505: The SGW completes the necessary processing of the data according to the found wireless link (for example, the GTPU protocol), and encapsulates the data according to the connection relationship in the found wireless link, and then forwards the data to PGW.

Step 506: The PGW receives the data of the UE, and searches for the corresponding wireless link in the wireless configuration by using the source IP address in the UE data. If the search is found, step 507 is performed; if not, the process ends.

Step 507: The PGW completes the necessary processing of the data according to the found wireless link (for example, the GTPU protocol), and encapsulates the data according to the connection relationship in the found wireless link, and then forwards the data to the Internet. It should be noted that the PGW as the most edge network element of the wireless system also has a wireless link and corresponding configuration, and the configuration includes a QoS policy; and the connection relationship does not need to exist in general, and the packet enters the Internet from the PGW. Follow the Internet's routing and forwarding protocol.

Step 508: The PGW forwards the downlink data obtained from the Internet to the UE through the connection relationship in the wireless link determined by the uplink data.

Embodiments of the present invention disclose a computer program including program instructions that, when executed by a computer, cause the computer to perform any of the above methods of transmitting data.

The embodiment of the invention discloses a carrier carrying the computer program.

Referring to FIG. 6, an embodiment of the present invention further provides an apparatus for transmitting data, including at least:

The storage module 601 is configured to: before the user has a service requirement, save the wireless configuration required for completing the service established by the user equipment UE;

The receiving module 602 is configured to: receive data from the user equipment UE;

The determining module 603 is configured to: determine, according to the data and the wireless configuration, a wireless link used to carry user services;

The sending module 604 is configured to: forward the data to the Internet according to the determined wireless link.

In the device of the present invention, the determining module 603 is specifically configured to:

Look for a wireless link that matches the match of the data in the wireless configuration.

It should be noted that the above-mentioned embodiments are only for the purpose of facilitating the understanding of those skilled in the art, and are not intended to limit the scope of the present invention, and those skilled in the art will Any obvious substitutions and improvements made by the invention are in this Within the scope of protection of the invention.

Industrial applicability

With the solution of the present invention, the network side determines the wireless link according to the pre-established wireless configuration, and forwards the data to the Internet according to the determined wireless link, so that it is not necessary to use multiple signaling to open up the uplink and before using the data. Downlink, shortening the interaction delay of business data. Therefore, the present invention has strong industrial applicability.

Claims

A method for transmitting data, before the user has a service requirement, the network side establishes a wireless configuration required for the user equipment UE to complete the service, and further includes:

When the user has a service requirement, the UE establishes an air interface link, and uses the established air interface link to send data to the network side;

The network side determines a wireless link for carrying user services according to the data and the wireless configuration, and forwards the data to the Internet according to the determined wireless link.
The method for transmitting data according to claim 1, wherein the step of the network side establishing a radio configuration required for the user equipment UE to complete the service comprises:

The network side establishes, in the UE access process, a wireless configuration required for completing the service for the UE.
The method of transmitting data according to claim 2, wherein the UE access procedure comprises an attach procedure, and/or a location update procedure.
The method of transmitting data of claim 1 wherein said wireless configuration comprises a match corresponding to said wireless link.
The method of transmitting data according to claim 4, wherein the step of determining, by the network side, a wireless link for carrying user services according to the data and the wireless configuration comprises:

The network side looks up a wireless link in the wireless configuration that matches a match of the data.
A device for transmitting data, comprising a storage module, a receiving module, a determining module and a sending module, wherein:

The storage module is configured to: save, before the user has no service requirement, a wireless configuration required to complete the service established by the user equipment UE;

The receiving module is configured to: receive data from the UE;

The determining module is configured to: determine, according to the data and the wireless configuration, a wireless link for carrying user services;

The sending module is configured to forward data to the Internet according to the determined wireless link.
The apparatus of claim 6, wherein the determining module is configured to determine a wireless link for carrying user traffic based on the data and the wireless configuration as follows:

A wireless link that matches a match of the data is looked up in the wireless configuration.
A computer program comprising program instructions which, when executed by a computer, cause the computer to perform the method of transmitting data as claimed in any one of claims 1-5.
A carrier carrying the computer program of claim 8.