WO2018014667A1

WO2018014667A1 - Data transmission method and apparatus

Info

Publication number: WO2018014667A1
Application number: PCT/CN2017/087240
Authority: WO
Inventors: 侯云静; 艾明; 王胡成
Original assignee: 电信科学技术研究院
Priority date: 2016-07-21
Filing date: 2017-06-06
Publication date: 2018-01-25
Also published as: CN107645724A

Abstract

Provided are a data transmission method and apparatus. The method comprises: a PGW receiving information about switched data of a terminal closing packet; and the PGW transmitting data according to the information about the switched data of a terminal closing packet.

Description

Method and device for data transmission

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201610581391.X filed on Jan. 21, 2016, the entire content of

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for data transmission.

Background technique

In the related art, when a user closes a data service, the terminal does not notify the network of the event. In the above method, the application server may continue to send downlink data to the terminal. Since the network does not know that the terminal has closed the data service, the network continues to send downlink data to the terminal and bills the data, so there is a problem of excessive charging. .

In addition, if the operator only deploys the PS (Packet Switched) service and provides the voice service to the user through the IMS system (IP Multimedia Subsystem), when the user closes the data service, the terminal no longer receives the voice call sent from the IMS system. , so the user cannot receive the call.

Summary of the invention

In view of the above technical problem, the embodiments of the present disclosure provide a method and an apparatus for data transmission, which solves the problem of excessive charging or dropped calls in the related art because the terminal does not notify the network that the packet switched data service is closed.

In a first aspect, a method for data transmission is provided, the method comprising: a Packet Data Network (PDN) gateway PGW (PDN GateWay) receiving information that a terminal closes packet switched data; and the PGW is according to the terminal Turn off information transfer data for packet switched data.

Optionally, the PGW receives the information that the terminal closes the packet-switched data, and the information that is sent by the terminal to the packet-switched data is sent by the terminal that is sent by the PGW and the PW.

Optionally, the information that the terminal closes the packet-switched data is sent by the terminal UE to the application server, and then sent by the application server to the PCRF.

Optionally, the PGW receiving information that the terminal closes the packet exchange data includes: the PGW Receiving, by the serving gateway SGW (Serving Gateway), the terminal closes information of packet switched data.

Optionally, the information that the terminal closes the packet-switched data is sent by the UE to the mobility management entity MME, and then sent by the MME to the SGW.

Optionally, the information that the terminal closes the packet-switched data includes: the UE turns off the indication information of the packet-switched data and the related information of the specified application, and the network may continue to transmit the information to the UE when the UE closes the packet-switched data service. Specify the data for the app.

Optionally, the transmitting information according to the information that the terminal closes the packet-switched data includes: if the UE closes the packet-switched data service, when the PGW receives the data packet, determining whether the data packet belongs to the specified application If the data packet does not belong to the specified application, the PGW discards the data packet, otherwise the PGW normally forwards the data packet.

In a second aspect, a device for data transmission is provided, the device comprising: a receiving module, configured to receive information that the terminal closes the packet-switched data; and a transmitting module, configured to transmit data according to the information that the terminal turns off the packet-switched data. .

Optionally, the receiving module is further configured to: receive, by the policy and charging rule function, the information sent by the terminal to close the packet exchange data.

Optionally, the information that the terminal closes the packet-switched data is sent by the UE to the application server, and then sent by the application server to the PCRF.

Optionally, the receiving module is further configured to: receive information that the terminal sent by the serving gateway SGW closes the packet exchange data.

Optionally, the information that the terminal closes the packet-switched data includes: the UE turns off the indication information of the packet-switched data and the related information of the specified application, and the network may continue to transmit the specified application to the UE when the UE closes the packet-switched data service. The data.

Optionally, the transmitting module is further configured to: if the UE closes the packet switched data service, when the receiving module receives the data packet, determine whether the data packet belongs to the specified application; if the data packet If the packet does not belong to the specified application, the data packet is discarded, otherwise the data packet is normally forwarded.

One technical solution of the foregoing technical solution has the following advantages or advantages: the PGW receiving terminal closes the information of the packet-switched data, and the PGW transmits the data according to the information of the terminal closing the packet-switched data, when the terminal closes the packet-switched data service, in order to avoid The terminal does not notify the network that the packet switched data service is closed, and there is a problem of excessive charging or dropped calls. The above problem can be notified to the network that the packet switched data service is closed. The operator can define a specified application (for example, defined as PS Data). OFF Exempt services), even if the terminal closes the packet switched data service, the network normally forwards the data of the specified application (for example, PS Data OFF Exempt services).

DRAWINGS

1 is a flow chart of a method of data transmission in some embodiments of the present disclosure;

2 is a schematic diagram of a process of transmitting, by an application server, information of a PS DATA OFF Exempt service to a PGW when the UE closes PS data according to some embodiments of the present disclosure;

3 is a schematic diagram of a process for a UE to send a PS DATA OFF prompt to a PGW through control plane signaling according to some embodiments of the present disclosure;

4 is a block diagram of an apparatus for data transmission in some embodiments of the present disclosure;

5 is a block diagram of an apparatus for data transmission in some embodiments of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the exemplary embodiments of the present invention have been shown in the drawings, it is understood that Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

Those skilled in the art will appreciate that embodiments of the present disclosure may be implemented as a system, apparatus, device, method, or computer program product. Thus, embodiments of the present disclosure may be embodied in the form of full hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

It should be noted that the terms "first", "second" and the like in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the data so used is interchangeable, where appropriate, so that the embodiments of the present disclosure described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any variants thereof are intended to cover a non-exclusive inclusion, For example, a series of steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

It should be noted that the embodiments of the present disclosure and the features in the embodiments may be combined with each other without conflict. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with the embodiments.

In some embodiments, referring to FIG. 1, a method of data transmission is illustrated, including the following steps.

Step 101, the PGW (PDN gateway) receives the information that the terminal closes the packet exchange data, and then proceeds to step 102;

Optionally, the information that the terminal closes the packet switched data indicates that the UE closes the PS data service.

Option 1: The PGW receives the closed data information sent by the PCRF (Policy and Charging Rules function). The closed data information is sent by the UE to the application server, and then sent by the application server to the PCRF.

Option 2: The PGW receives the closed data information sent by the SGW (Serving Gateway). The closed PS data information is transmitted by the UE to the MME (Mobility Management Entity), and then transmitted by the MME message to the SGW.

Optionally, the information that the terminal turns off the packet-switched data includes: the UE turns off the indication information of the packet-switched data and the related information of the specified application, and the network may continue to transmit the data of the specified application to the UE when the UE closes the packet-switched data service. The related information of the specified application may be an application identifier or an IP filter (IP packet filter).

When the terminal closes the data service, in order to avoid the problem that the terminal does not notify the network that the packet switched data service is closed, there is a problem of excessive charging or dropped calls, the terminal may notify the network of the event that the packet switched data service is closed. In order to solve the problem of dropped calls, the operator can define a specified application (for example, PS Data OFF Exempt services), and the network normally forwards data of a specified application (for example, PS Data OFF Exempt services) even if the terminal closes the packet switched data service. Examples of the designated application (for example, PS Data OFF Exempt services) may be IMS voice service, IMS short message service, IMS video call, PS domain-based device management, etc., of course, without being limited thereto.

Step 102: The PGW transmits data according to information that the terminal closes the packet exchange data.

For example, if the UE turns off the data, when the PGW receives the data packet, the PGW judges the data packet. Whether it belongs to the specified application; if the data packet does not belong to the specified application, the PGW drops the data packet, otherwise the PGW normally forwards the data packet.

In this embodiment, the PGW receiving terminal closes the information of the packet-switched data, and the PGW transmits the data according to the information of the terminal closing the packet-switched data. When the terminal closes the packet-switched data service, in order to avoid the occurrence of the closed packet switching because the terminal does not notify the network. Data service, there is a problem of over-billing or dropped calls. The above problem, the terminal can notify the network of the event that the packet-switched data service is closed, and the operator can define a specified application (for example, defined as PS Data OFF Exempt services) even if the terminal closes the data. Business, the network also normally forwards data for specified applications (such as PS Data OFF Exempt services).

In some embodiments, when the UE closes the PS data, it sends the PS DATA OFF Exempt service information to the PGW through the application server, as follows:

The application server sends a first request message to the PCRF, where the message carries the prompt information, and the prompt information indicates that the data of the specified application can be continuously transmitted when the terminal closes the PS data, that is, the designated application can be defined as a PS DATA OFF Exempt service. The PCRF sends a second request message to the PGW, and the message carries information related to the application (such as an application identifier or an IP stream filter) and a prompt message of the PS DATA OFF Exempt service. When the UE decides to disable the PS data service, the UE sends a third request message to the application server, where the message carries the prompt information for closing the PS data. It should be noted that when the UE decides to open the PS data service, the process is the same as above, except that the request message only carries the information of opening the PS data.

Referring to FIG. 2, a method for data transmission is shown, which specifically includes the following steps.

Step 200: The terminal sends a third request message to the application server, where the message carries the prompt information that the terminal closes the PS data.

Step 201: The application server sends a first request message to the PCRF, where the message carries the PS DATA OFF Exempt service prompt message. In addition, the message may also carry related information of the service flow, such as an app ID or an IP filter.

When the terminal closes the PS data service, the network can continue to transmit the data of the above PS Data OFF Exempt services to the terminal.

Step 202: The PCRF sends a second request message to the PGW, where the message carries related information of the application and PS data offexempt service information, where the related information of the application may be an app ID (should be Use the identifier) or IP filter (IP packet filter).

Step 203: The PGW sends a second acknowledgement message to the PCRF.

Step 204: The PCRF returns a first confirmation message to the application server.

Step 205: The application server returns a third confirmation message to the UE.

In this embodiment, when the UE re-opens the PS data service, the steps 200 to 202 in the foregoing process only need to carry the prompt information for opening the PS data, and the specific process is not described here.

In this embodiment, the PGW receives the closed PS data information, and the PGW transmits the data according to the information of the closed PS data. When the terminal closes the packet switched data service, in order to avoid the occurrence of the packet switched data service due to the terminal not notifying the network, there is excessive Billing or dropped calls The above problem, the terminal can notify the network of the event that the packet switched data service has been closed, and the operator can define the specified application (for example, defined as PS Data OFF Exempt services) even if the terminal closes the packet switched data service, the network The data of the specified application (for example, PS Data OFF Exempt services) is also normally forwarded.

In some embodiments, the UE sends a PS DATA OFF (PS Data Off) prompt to the PGW via control plane signaling.

The UE sends a prompt message for closing the PS data service to the network: the UE sends a PS DATA OFF Exempt service information (such as an app ID or an IP filter) to the MME through a NAS (Non-Access-Stratum) message, and a prompt to close the PS data, and the MME passes the The GTP-C (GPRS Tunneling Protocol Control Plane) message sends the above content to the SGW, and the SGW sends the content to the PGW through the GTP-C message. It should be noted that when the UE decides to open the PS data service, the process is the same as above, except that the request message only carries the information of opening the PS data.

The behavior of the PGW routing data is as follows: The PGW receives the data, and the PGW determines whether the UE to which the data belongs has closed the PS data service. If the UE has turned off the PS data service, the PGW determines whether the data belongs to the PS DATA OFF Exempt service, and if so, the PGW normally forwards the data, otherwise the PGW discards the data. If the UE does not turn off the PS data service, the PGW normally forwards the data.

Referring to FIG. 3, a method for data transmission is shown, and the specific steps are as follows:

Step 301: The UE sends a request bearer resource modification message to the MME, where the message includes a prompt for closing the PS data.

Step 302: The MME sends a bearer resource command message to the SGW, where the message includes a prompt to close the PS data.

Step 303: The SGW sends a bearer resource command message to the PGW, where the message includes a prompt to close the PS data.

Step 304: The PGW returns an update bearer request to the SGW, where the request carries the acknowledgement information.

Step 305: The SGW returns an update bearer request to the MME, where the request carries the acknowledgement information.

Step 306: The MME sends a session management request to the UE, where the request carries the confirmation information.

In addition, the above procedure is also applicable when the UE decides to open the PS data. At this time, the parameters carried in the steps 301 to 303 in the above process are prompts for opening the PS data, and the specific process is not described here.

In some embodiments, on the basis of the foregoing embodiment, the UE sends information about opening/closing PS data to the network during the attach process, the PDN connection establishment process, or the TAU (Tracking Area Update) process. If the PS data is closed, the UE You will also need to provide information about the PS DATA OFF Exempt service.

The message of opening/closing PS data is carried in an attach request, a PDN connectivity request, or a TAU request (tracking area update request) message. If the PS data is closed, the message should also carry the PS DATA. OFF Exempt service information.

When the MME sends a create session request to the SGW, the MME carries the above information in the message.

When the SGW sends a create session request to the PGW or modifies the bearer request, the SGW carries the above information in the message.

In some embodiments, based on the above embodiment, the PS DATA OFF Exempt service information stored in the PGW is as shown in the following table.

PS DATA OFF Exempt service

Application information, such as app ID, or IP filter

The above information may be stored in the context of the UE, and the application information may also be a service data flow template defined in TS 23.203.

When the UE requests to close the PS data, if the PGW receives the data of the UE, the PGW matches the data with the application information in the above table, and if the matching result, the PGW normally forwards the data. If the match fails, the PGW discards the data.

In some embodiments, referring to FIG. 4, there is shown an apparatus for data transmission. The apparatus 400 includes: a receiving module 401 for receiving information that a terminal closes packet switched data; and a transmitting module 402 for shutting down according to a terminal. Information transfer data for packet switched data.

Optionally, the information that the terminal closes the packet-switched data is sent by the UE to the MME, and then sent by the MME to the SGW.

Optionally, the information that the terminal closes the packet-switched data includes: the UE turns off the indication information of the packet-switched data and the related information of the specified application, and the network may continue to transmit the specified application to the UE when the UE closes the packet-switched data service. The data. The related information of the specified application may be an application identifier or an IP filter (IP packet filter).

Optionally, the transmitting module is further configured to: if the UE closes the packet switched data service, when the receiving module receives the data packet, determine whether the data packet belongs to the specified application; if the data packet does not belong to the If the application is specified, the data packet is discarded, otherwise the data packet is normally forwarded.

In this embodiment, the PGW receiving terminal closes the information of the packet-switched data, and the PGW transmits the data according to the information of the terminal closing the packet-switched data. When the terminal closes the packet-switched data service, in order to avoid the occurrence of the closed packet switching because the terminal does not notify the network. Data service, there is a problem of over-billing or dropped calls. The above problem, the terminal can notify the network that the packet-switched data service has been closed. For example, the operator can define a specified application (for example, defined as PS Data OFF Exempt services), and the network normally forwards data of a specified application (for example, PS Data OFF Exempt services) even if the terminal closes the data service.

In some embodiments, referring to FIG. 5, a data transmission apparatus includes: a processor 504 for reading a program in the memory 505, performing the following process: receiving information that the terminal closes the packet switched data; and closing the packet exchange according to the terminal The information transmission data of the data; the transceiver 501 is configured to receive and transmit data under the control of the processor 504.

In FIG. 5, a bus architecture (represented by bus 500), bus 500 can include any number of interconnected buses and bridges, and bus 500 will include one or more processors represented by processor 504 and memory represented by memory 505. The various circuits are linked together. The bus 500 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein. Bus interface 603 provides an interface between bus 500 and transceiver 501. Transceiver 501 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. Data processed by processor 504 is transmitted over wireless medium via antenna 502. Further, antenna 502 also receives data and transmits the data to processor 504.

The processor 504 is responsible for managing the bus 500 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The memory 505 can be used to store data used by the processor 504 when performing operations.

Optionally, the processor 504 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable Complex Programmable Logic Device (CPLD).

Optionally, the processor 504 receives the information that the terminal and the packet-switched data are sent by the terminal sent by the policy and charging rule function PCRF.

Optionally, the processor 504 receives, by the serving gateway SGW, information that the terminal closes the packet exchange data.

Optionally, the information that the terminal closes the packet-switched data includes: the UE turns off the indication information of the packet-switched data and the related information of the specified application, and the network may continue to transmit the information to the UE when the UE closes the packet-switched data service. Specify the data for the app. The related information of the specified application may be an application identifier or an IP filter (IP packet filter).

Optionally, the processor 504 is further configured to: if the UE turns off the packet switched data service, when the data packet is received, determine whether the data packet belongs to the specified application; if the data packet does not belong to the The specified application discards the data packet, otherwise the data packet is normally forwarded.

In this embodiment, the PGW receiving terminal closes the information of the packet-switched data, and the PGW transmits the data according to the information of the terminal closing the packet-switched data. When the terminal closes the packet-switched data service, in order to avoid the occurrence of the closed packet switching because the terminal does not notify the network. Data service, there is a problem of over-billing or dropped calls. The above problem, the terminal can notify the network of the event that the packet-switched data service is closed, and the operator can define a specified application (for example, defined as PS Data OFF Exempt services) even if the terminal closes the packet. The data service is exchanged, and the network also forwards the data of the specified application (for example, PS Data OFF Exempt services).

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an" or "an" Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present disclosure, it should be understood that the size of the serial numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be taken to the embodiments of the present disclosure. The implementation process constitutes any limitation.

Additionally, the terms "system" and "network" are used interchangeably herein.

It should be understood that the term "and/or" herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone. In addition, the character "/" in this article generally means before The post-association object is an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined from A. However, it should also be understood that determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network side device, etc.) to perform part of the steps of the transceiving method of the various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. Within the scope of protection of the present disclosure.

Claims

A method of data transmission, comprising:

The packet data network PDN gateway PGW receives information that the terminal closes the packet exchange data;

The PGW transmits data according to information that the terminal closes packet switched data.
The method of claim 1, wherein the PGW receiving information that the terminal closes the packet switched data comprises:

The PGW receives the information that the terminal sent by the policy and charging rule function PCRF closes the packet exchange data.
The method of claim 2, wherein

The information that the terminal closes the packet switched data is sent by the terminal UE to the application server, and then sent by the application server to the PCRF.
The method of claim 1, wherein the PGW receiving information that the terminal closes the packet switched data comprises:

The PGW receives information that the terminal sent by the serving gateway SGW closes the packet exchange data.
The method of claim 4, wherein

The information that the terminal closes the packet switched data is sent by the UE to the mobility management entity MME, and then sent by the MME to the SGW.
The method according to claim 1, wherein the information that the terminal closes the packet switched data comprises: the UE turns off the indication information of the packet switched data and the related information of the specified application, and the network can continue when the UE closes the packet switched data service. Transmitting data of the specified application to the UE.
The method according to claim 6, wherein said transmitting data according to said terminal closing packet exchange data comprises:

If the UE closes the packet switched data service, when the PGW receives the data packet, it is determined whether the data packet belongs to the specified application;

If the data packet does not belong to the specified application, the PGW discards the data packet, otherwise the PGW normally forwards the data packet.
A data transmission device comprising:

a receiving module, configured to receive information that the terminal closes the packet exchange data;

And a transmission module, configured to transmit data according to the information that the terminal closes the packet exchange data.
The apparatus of claim 8 wherein said receiving module is further for:

The terminal sent by the receiving policy and charging rule function PCRF closes the information of the packet switched data.
The apparatus according to claim 9, wherein

The information that the terminal closes the packet switched data is sent by the UE to the application server, and then sent by the application server to the PCRF.
The apparatus of claim 8 wherein said receiving module is further for:

Receiving, by the serving gateway SGW, the terminal closes information of packet switched data.
The apparatus according to claim 11, wherein

The information that the terminal closes the packet switched data is sent by the UE to the mobility management entity MME, and then sent by the MME to the SGW.
The apparatus according to claim 8, wherein the information that the terminal closes the packet switched data comprises: the UE turns off the indication information of the packet switched data and the related information of the specified application, and the network can continue to go to the office when the UE turns off the packet switched data service. The UE transmits data of the specified application.
The apparatus of claim 13 wherein said transmission module is further for:

If the UE closes the packet switched data service, when the receiving module receives the data packet, it is determined whether the data packet belongs to the specified application;

If the data packet does not belong to the specified application, the data packet is discarded, otherwise the data packet is normally forwarded.
A data transmission device comprising:

Memory,

a processor for reading a program in the memory, performing the following process: receiving information that the terminal closes the packet-switched data; and transmitting data according to the information that the terminal turns off the packet-switched data;

A transceiver for receiving and transmitting data.