WO2016011665A1

WO2016011665A1 - Data transmission method and user equipment

Info

Publication number: WO2016011665A1
Application number: PCT/CN2014/083040
Authority: WO
Inventors: 张晓波
Original assignee: 华为技术有限公司
Priority date: 2014-07-25
Filing date: 2014-07-25
Publication date: 2016-01-28

Abstract

Disclosed are a data transmission method and user equipment (UE), for solving the problem in the prior art that when a UE uses an APN of a 3G network or a wrong APN to activate a PDN connection used for transmitting data service, the PDN connection cannot be established. The method comprises: after being registered with an LTE network, a UE determines that establishing a first PDN connection with the LTE network for transmitting data service fails; the UE uses a second PDN connection established in the registration process to transmit data service between the UE and the LTE network, the APN corresponding to the second PDN connection supporting the type of the data service to be transmitted. Because the APN corresponding to the second PDN connection supports the type of the data service to be transmitted, the UE can transmit data service between the UE and the LTE network by using the second PDN connection, satisfying the requirement of the user for using data service in the LTE network, and improving user experience.

Description

Data transmission method and user equipment

Technical field

The present invention relates to the field of wireless communication technologies, and in particular, to a data transmission method and user equipment. Background technique

In order to meet the growing needs of users of mobile broadband and high data rate transmission, the third Generation Partnership Project ^{(The 3 rd Generation Partnership, 3GPP} ) Long Term Evolution began a universal mobile telecommunications system (Universal Mobile Telecommunications System, UMTS) ( Long Term Evolution, LTE) project. The circuit switched domain (CS) is eliminated in the LTE network, and the flat network architecture of the entire Internet protocol is adopted. In order to ensure that the Evolved Packet System (EPS) fully utilizes its own technical advantages, multiple bearer and processing mechanisms are introduced in the LTE network. In order to achieve the always-on of the user equipment (UE), the LTE network is accompanied by the establishment of a default Packet Data Network (PDN) connection in the attach (also called registration) process.

An access point name (Access Point Name, ΑΡΝ ) is used during the LTE Attach process to establish a default PDN connection. Depending on the network configuration, the APN used to establish the default PDN connection may be the APN carried by the UE during the registration process or the APN delivered by the LTE network. After the LTE registration is successful, if the data service needs to be transmitted between the UE and the LTE network, the APN corresponding to the data service type to be transmitted needs to be used to establish a corresponding PDN connection. For example, if you need to send and receive the Multimedia Messaging Service (MMS), you need to use the APN that supports the MMS type to establish the corresponding PDN connection. For example, if you need to browse the webpage, you need to use the default (default) type APN. To establish the corresponding PDN connection.

In an LTE network, if the UE uses the APN of the 3G network or the wrong APN to activate the PDN connection for transmitting the data service, the LTE network rejects the activation, as shown in FIG. In this case, the PDN connection for transmitting data services cannot be established, thereby affecting the use of data services in the LTE network by the UE, thereby reducing the user experience. Summary of the invention

The embodiment of the present invention provides a data transmission method and a user equipment, which are used in the prior art because the UE uses the APN of the 3G network or the wrong APN to activate the PDN connection for transmitting the data service, so that the transmission cannot be established for transmission. The PDN connection of the data service affects the problem of the UE using the data service in the LTE network.

A first aspect, a data transmission method, the method comprising:

After the user equipment UE registers with the Long Term Evolution (LTE) network, determining that the first packet data network PDN connection for establishing the data service with the LTE network fails;

The UE uses the second PDN connection that has been established in the registration process to transmit data services between the UE and the LTE network, where the access point name APN corresponding to the second PDN connection supports the required transmission. The type of data service.

With reference to the first aspect, in a first possible implementation, the determining, by the UE, that the first PDN connection for transmitting the data service is established with the LTE network, includes:

After the UE initiates the PDN activation request to the network server, and receives the reject message returned by the network server, the UE determines that the first PDN connection for establishing the data service with the LTE network fails, and the PDN is activated. Request to carry APN parameters; or

If the UE determines that it does not have an APN of a type that supports the data service to be transmitted, the UE determines that the first PDN connection for establishing a data service with the LTE network fails.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner, the UE uses the second PDN connection established in the registration process to transmit the UE and the Data services between LTE networks, including:

After determining that the first PDN connection with the LTE network fails, the application layer of the UE acquires information about the second PDN connection from a modem of the UE;

The application layer of the UE performs configuration of a data service channel according to the obtained information about the second PDN connection, to use the second PDN connection to transmit data services between the UE and the LTE network. With reference to the second possible implementation of the first aspect, in a third possible implementation manner, the application layer of the UE acquires the information about the second PDN connection from the modem of the UE, including:

The application layer of the UE sends a query request to the modem of the UE to query the APN corresponding to the second PDN connection;

After receiving the APN corresponding to the second PDN connection returned by the modem of the UE, the application layer of the UE initiates a new PDN activation request to the modem of the UE, where the new PDN activation request is Carrying an APN corresponding to the second PDN connection; and

The application layer of the UE receives the activation success message returned by the modem of the UE, where the activation success message carries the related information of the second PDN connection.

With reference to the second possible implementation of the first aspect, or the third possible implementation of the first aspect, in a fourth possible implementation, the related information of the second PDN connection includes the following information. At least one:

The second PDN is connected to a corresponding Internet Protocol IP address, and the second PDN is connected to a domain name system DNS.

The second aspect is a user equipment, where the user equipment includes:

a first processing module, configured to determine, after registering with the LTE network, that the first packet data network PDN connection for establishing the data service with the LTE network fails;

a second processing module, configured to transmit a data service between the UE and the LTE network by using a second PDN connection that has been established in the registration process, where the access point name corresponding to the second PDN connection is supported by the APN The type of data service that needs to be transmitted.

With reference to the second aspect, in a first possible implementation, the first processing module determines that the first PDN connection failure for establishing a data service with the LTE network fails, including:

After initiating a PDN activation request to the network server, receiving a reject message returned by the network server, determining that the first PDN connection for establishing a data service with the LTE network fails, the PDN activation request carrying an APN parameter; or

If it is determined that the user equipment to which it belongs does not have the type of data service supporting the required transmission The APN determines that the first PDN connection for establishing a data service with the LTE network fails. With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner, the second processing module includes an application layer submodule and a modulation and demodulation submodule, where: An application layer submodule, configured to acquire information about the second PDN connection from the modem submodule after determining that the first PDN connection fails to be established with the LTE network; and according to the obtained location The information about the second PDN connection is configured to perform data service channel configuration to use the second PDN connection to transmit data services between the user equipment and the LTE network.

In conjunction with the third possible implementation of the second aspect, in a fourth possible implementation, the application layer sub-module is specifically configured to:

Sending a query request to the modem submodule to query an access point name APN corresponding to the second PDN connection; after receiving the APN corresponding to the second PDN connection returned by the modem submodule And generating a new PDN activation request to the modem submodule, where the new PDN activation request carries an APN corresponding to the second PDN connection; and receiving an activation success message returned by the modulation and demodulation submodule The information about the second PDN connection is carried in the activation success message.

With reference to the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner, the related information of the second PDN connection includes the following information. At least one:

A third aspect is a user equipment, the user equipment comprising: a transceiver, and a processor coupled to the transceiver, wherein:

a processor, configured to determine, after registering to the LTE-LTE network, that the first packet data network PDN connection for establishing the data service for the LTE network fails; and using the second PDN connection established during the registration process The data service between the UE and the LTE network, where the access point name APN corresponding to the second PDN connection supports a type of data service to be transmitted.

The transceiver and the processor are connected by a bus. With reference to the third aspect, in a first possible implementation manner, the processor determines that the first PDN connection failure for establishing a data service for the LTE network is failed, including:

If the transceiver initiates the PDN activation request to the network server, receiving the reject message returned by the network server, determining that the first PDN connection for establishing the data service with the LTE network fails, the PDN activation request carrying the APN parameter ; or

If it is determined that the user equipment to which the user equipment belongs does not have an APN of a type that supports the data service to be transmitted, it is determined that the first PDN connection for establishing the data service with the LTE network fails.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner, the processor includes: an application layer and a modem, where:

The application layer, for determining the LTE network and establishing the first PDN connection fails, acquiring related information of the second p _DN connection from the modem; and related to the acquired connection according to the second PDN The information is configured to perform a data service channel to transmit data services between the user equipment and the LTE network by using the second PDN connection.

The application layer and the modem are connected by a bus.

In conjunction with the third possible implementation of the third aspect, in a fourth possible implementation, the application layer is specifically configured to:

Sending a query request to the modem to query the APN corresponding to the second PDN connection; after receiving the APN corresponding to the second PDN connection returned by the modem, initiating a new PDN activation request to the modem, where the new PDN activation request And carrying the APN corresponding to the second PDN connection; and receiving an activation success message returned by the modem, where the activation success message carries related information of the second PDN connection.

With reference to the third possible implementation manner of the third aspect, or the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner, the related information of the second PDN connection includes the following information. At least one:

In the method and user equipment provided by the embodiments of the present invention, after registering to the LTE network, determining and LTE The network establishes a first PDN connection for transmitting the data service. The second PDN connection is established in the registration process, and the data service between the LTE network and the LTE network is transmitted, where the APN corresponding to the second PDN connection can support the required The type of data service that is transmitted. Since the APN corresponding to the second PDN connection can support the type of the data service to be transmitted, the UE can use the second PDN connection to transmit data services between the LTE network and the LTE network to meet the user's use of the data service under the LTE network. Demand, improve the user experience. DRAWINGS

1 is a flowchart of a PDN activation performed by a terminal using an error APN in an LTE network; FIG. 2 is a flowchart of a data transmission method provided by the present invention;

3 is a flowchart of Embodiment 1 of the present invention;

4 is a schematic diagram of a user equipment provided by the present invention;

FIG. 5 is a schematic diagram of another user equipment provided by the present invention. detailed description

In the embodiment of the present invention, after successfully registering with the LTE network, if the UE cannot establish a first PDN connection for transmitting data services with the LTE network, try to use the second PDN connection established in the registration process to transmit the UE and the LTE. The data service between the networks meets the needs of users to use data services under the LTE network to improve the user experience.

In order to explain the technical solution of the present invention, the words "first" and "second" are used to distinguish different types of PDN connections, but the number of PDN connections is not limited. The first PDN connection indicates successful registration in the UE. After the LTE network, the UE uses the PDN connection established by the APN corresponding to the data service type, and the second PDN connection indicates the default PDN connection established by the UE during the registration process in the LTE network.

The technical solutions provided by the embodiments of the present invention are preferably applicable to various upgrade systems of the LTE system and the LTE system.

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that this The embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

As shown in FIG. 2, a data transmission method provided by an embodiment of the present invention includes:

521. After the UE registers with the LTE network, determine that the first PDN connection for establishing a data service with the LTE network fails.

522. The UE uses the second PDN connection established in the registration process to transmit data services between the UE and the LTE network, where the APN corresponding to the second PDN connection supports the type of data service to be transmitted.

Specifically, if the APN corresponding to the second PDN connection supports the type of the data service to be transmitted, the second PDN connection can transmit the data service between the UE and the LTE network; if the APN corresponding to the second PDN connection does not support The type of data service to be transmitted, the second PDN connection cannot transmit data traffic between the UE and the LTE network.

In the embodiment of the present invention, after the UE registers with the LTE network, it is determined that the first PDN connection for establishing a data service with the LTE network fails; the UE uses the second PDN connection established in the registration process to transmit the UE and the LTE network. The data service between the APNs corresponding to the second PDN connection supports the type of data service required for transmission. Since the APN corresponding to the second PDN connection can support the type of the data service to be transmitted, the UE can use the second PDN connection to transmit the data service between the UE and the LTE network to meet the user's use in the LTE network. The need for data services to enhance the user experience.

In the implementation, in S21, the UE determines that the first PDN connection for establishing the data service for the LTE network fails, including the following two situations:

The first case: after the UE initiates the PDN activation request to the network server, and receives the reject message returned by the network server, the UE determines that the first PDN connection for establishing the data service with the LTE network fails.

Specifically, after the application layer (Application, AP) of the UE initiates the PDN activation request to the network server, if receiving the reject message returned by the network server, the application layer of the UE determines to establish the first data transmission service with the LTE network. The PDN connection failed.

In an implementation, the application layer of the UE initiates a PDN activation request to the network server, including: the UE The application layer initiates a PDN activation request to the network server through the modem (Modem) of the UE to establish a first PDN connection;

The application layer of the UE receives the reject message returned by the network server, and includes: the application layer of the UE receives the reject message returned by the network server by using the modem of the UE.

It should be noted that, in the UE, the application layer of the UE determines whether a PDN activation request needs to be initiated to the network server, and the Modem of the UE interacts with the network server. Therefore, when the application layer of the UE determines that the PDN activation request needs to be initiated, Then, a PDN activation request is initiated to the Modem of the UE, and then the Modem of the UE initiates a PDN activation request to the network server. Correspondingly, when determining that the PDN activation request is rejected, the network server sends a reject message to the modem of the UE, and the modem of the UE forwards the reject message to the application layer of the UE; the network server determines to accept the PDN activation request. And sending an accept message to the modem of the UE, and then forwarding the accept message to the application layer of the UE by the modem of the UE. Finally, it is determined by the application layer of the UE whether the establishment of the first PDN connection for transmitting data traffic with the LTE network fails.

In this case, if the UE itself has an APN of a type that supports the data service to be transmitted, a PDN activation request is initiated to the network server, and an APN of a type that supports the data service to be transmitted is carried in the PDN activation request.

Further, if the network server accepts the PDN activation request, establishing a first PDN connection for transmitting the data service, and returning an accept message to the UE;

If the network server determines that the APN carried in the PDN activation request is an erroneous APN, the network server rejects the PDN activation request and returns a rejection message to the UE.

In this case, the APN carried in the PDN activation request is an erroneous APN, including but not limited to the following:

1. Use APN in 3G network;

2. Use the wrong APN, such as APN name error, or APN parameter error (such as APN type error, etc.).

The second case: If the UE determines that it does not have an APN of the type that supports the data service to be transmitted, the UE determines that the first PDN connection for transmitting the data service with the LTE network fails. Specifically, if the application layer of the UE determines that the UE does not have an APN of a type that supports the data service to be transmitted, it is determined that the first PDN connection for establishing a data service with the LTE network fails.

In this case, if the UE determines that it does not have the APN of the type that supports the data service to be transmitted, the UE does not initiate a PDN activation request to the network server, and directly determines that the first PDN for transmitting the data service is established with the LTE network. Connection failed.

Based on any of the foregoing embodiments, in S22, the UE uses the second PDN connection that has been established in the registration process to transmit data services between the UE and the LTE network, including:

After determining that the first PDN connection with the LTE network fails, the application layer of the UE acquires information about the second PDN connection from the modem (Modem) of the UE;

The application layer of the UE performs configuration of the data service channel according to the obtained information about the second PDN connection, so as to use the second PDN connection to transmit data services between the UE and the LTE network.

Specifically, in the registration process, the UE initiates a registration process in the LTE network by using the Modem of the UE, and the related information of the default PDN connection (that is, the second PDN connection) is also saved in the Modem of the UE. That is to say, the application layer of the UE does not know the related information of the second PDN connection. After determining that the first PDN connection is established with the LTE network, the application layer of the UE acquires information about the second PDN connection to the Modem of the UE, to use the second PDN connection to transmit data services between the UE and the LTE network. .

In an implementation, the application layer of the UE obtains information about the second PDN connection from the modem of the UE, including:

After querying the APN corresponding to the second PDN connection, the application layer of the UE initiates a new PDN activation request to the modem of the UE, where the new PDN activation request carries the APN corresponding to the second PDN connection;

The application layer of the UE receives the activation success message returned by the modem of the UE, where the activation success message carries related information of the second PDN connection.

Specifically, the UE's modem receives the registration success message returned by the network server. After the APN of the currently established first PDN connection is saved, the application layer of the UE sends a query request to the modem of the UE to determine the second PDN connection corresponding to the failure to establish a first PDN connection with the LTE network. APN; after receiving the query request, the modem of the UE returns the APN corresponding to the second PDN connection to the application layer of the UE; the application layer of the UE initiates a new PDN activation request to the modem of the UE, the new The PDN activation request carries the APN corresponding to the second PDN connection; the modem of the UE determines that the APN carried in the PDN activation request has a corresponding PDN connection (ie, the second PDN connection), and returns the activation to the application layer of the UE. The message, and carrying the information about the second PDN connection in the activation success message.

Further, the application layer of the UE performs the configuration of the data service channel according to the obtained information about the second PDN connection. At this time, if the APN corresponding to the second PDN connection supports the type of the data service to be transmitted, the UE The second PDN connection can be used to transmit data traffic between the UE and the LTE network.

Preferably, the information related to the second PDN connection includes, but is not limited to, at least one of the following information: the second PDN connects the corresponding IP address, and the second PDN connects to the corresponding DNS.

The following describes a data transmission method provided by the present invention from the interaction process between the UE and the network server.

Embodiment 1 As shown in FIG. 3, the interaction process between the UE and the network server is as follows:

1: The UE's Modem initiates a registration request to the network server;

The UE establishes a default PDN connection (ie, a second PDN connection) in the registration process, and writes information about the second PDN connection to the modem of the UE.

2: The network server returns the registration success to the UE's Modem;

3: The Modem of the UE determines that the registration is completed;

After receiving the data service establishment request, the application layer of the UE initiates a PDN activation request for establishing a first PDN connection for transmitting the data service, where the PDN activation request carries a default (default) type APN;

5: The Modem of the UE initiates the PDN activation request to the network server;

6: The network server determines that the APN carried in the PDN activation request is an incorrect APN, and The Modem of the UE returns an activation reject message to notify the UE that the network server rejects the PDN activation request;

7: The modem of the UE forwards the activation reject message to the application layer of the UE;

8: The application layer of the UE determines that the first PDN connection with the LTE network fails, and sends a query request to the modem of the UE to query the APN corresponding to the second PDN connection;

9: The modem of the UE returns an APN corresponding to the second PDN connection;

10: The application layer of the UE initiates a new PDN activation request to the modem of the UE, where the new PDN activation request carries the APN corresponding to the second PDN connection;

After receiving the new PDN activation request, the modem of the UE finds that the APN carried in the new PDN activation request has a corresponding PDN connection (ie, a second PDN connection), and returns the activation to the application layer of the UE. a message, and carrying the information about the second PDN connection in the activation success message;

Correspondingly, after receiving the activation success message, the application layer of the UE performs configuration of the data service channel according to the information about the second PDN connection. At this time, if the APN corresponding to the second PDN connection supports the type of the data service to be transmitted. Then, the UE can use the second PDN connection to transmit data services between the UE and the LTE network.

A data transmission method provided by an embodiment of the present invention is described in detail below through a specific embodiment.

In the second embodiment, the operator A has an LTE network, and the LTE network of the operator B supports the registration mode without the APN when registering with the LTE. User C is the old customer of operator A, but user C has recently begun to try to use carrier B's LTE network, so the UE used by it is replaced by carrier B's card.

In the LTE network environment of the operator B, the UE is registered to the LTE network, but because the APN of the operator B is not pre-made in the UE, the PDN connection for transmitting the data service cannot be established. With the solution of the embodiment of the present invention, the UE may obtain a PDN connection established in the registration process for transmitting the default bearer, and use the PDN connection to transmit data services, so that the UE can access the Internet normally.

Based on the same inventive concept, an embodiment of the present invention provides a user equipment, as shown in FIG. 4, The user equipment includes:

The first processing module 41 is configured to determine, after registering to the LTE network, that the first PDN connection for establishing a data service with the LTE network fails;

The second processing module 42 is configured to transmit, by using the second PDN connection that has been established in the registration process, the data service between the user equipment to which the second processing module 42 belongs and the LTE network, where the second PDN is connected to the APN. The type of data service that supports the required transport.

Specifically, if the APN corresponding to the second PDN connection supports the type of the data service to be transmitted, the second PDN connection can transmit the data service between the user equipment and the LTE network; if the APN corresponding to the second PDN connection is not Supporting the type of data service to be transmitted, the second PDN connection cannot transmit data traffic between the user equipment and the LTE network.

In the user equipment provided by the embodiment of the present invention, after the user equipment is registered to the LTE network, it is determined that the first PDN connection for establishing a data service with the LTE network fails; the user equipment uses the second PDN connection established in the registration process. The data service between the user equipment to which the user belongs and the LTE network is transmitted, wherein the APN corresponding to the second PDN connection supports the type of the data service to be transmitted. Since the APN corresponding to the second PDN connection can support the type of the data service to be transmitted, the user equipment can use the second PDN connection to transmit the data service between the user equipment and the LTE network, so as to satisfy the user. The need to use data services under LTE networks to improve the user experience.

In an implementation, the first processing module 41 determines that the first PDN connection for establishing the data service for the LTE network fails, including the following two cases:

The first case: after the first processing module 41 initiates the PDN activation request to the network server, and receives the reject message returned by the network server, determining that the first PDN connection for establishing the data service with the LTE network fails, The PDN activation request carries an APN parameter.

Specifically, the first processing module 41 includes: an application layer submodule and a modem submodule, where: after the application layer submodule initiates a PDN activation request to the network server, receiving the reject message returned by the network server, determining and The LTE network fails to establish a first PDN connection for transmitting data services. Preferably, the application layer submodule initiates a PDN activation request to the network server through the modem submodule to establish a first PDN connection; and the application layer submodule receives the reject message returned by the network server through the modem submodule.

In this case, if the user equipment has an APN of a type that supports the data service to be transmitted, the first processing module 41 initiates a PDN activation request to the network server, and carries the data service supporting the required transmission in the PDN activation request. The type of APN.

Further, if the network server accepts the PDN activation request, establishing a first PDN connection for transmitting the data service, and returning an accept message to the first processing module 41;

If the network server determines that the APN carried in the PDN activation request is an erroneous APN, the network server rejects the PDN activation request and returns a rejection message to the first processing module 41.

1. Use APN in 3G network;

The second case: if the first processing module 41 determines that the user equipment does not have an APN of a type that supports the data service to be transmitted, it is determined that the first PDN connection for establishing the data service with the LTE network fails.

Specifically, the second processing module 42 includes: an application layer submodule 421 and a modem submodule 422, where:

The application layer sub-module 421 is configured to acquire, after determining that the first PDN connection fails with the LTE network, acquire information about the second PDN connection from the modem sub-module 422; and according to the obtained The information about the second PDN connection is configured to perform data service channel to transmit data traffic between the LTE network and the LTE network.

Specifically, the application layer sub-module 421 is specifically configured to: send a query request to the modem sub-module 422 to query the APN corresponding to the second PDN connection; and receive the second PDN connection returned by the modem sub-module 422 After the corresponding APN, a new PDN is initiated to the modem submodule 422. An activation request, where the new PDN activation request carries the corresponding APN of the second PDN connection; and receives an activation success message returned by the modem submodule 422, where the activation success message carries the second PDN connection. Related Information.

Correspondingly, the modem submodule 422 is specifically configured to: after receiving the query request of the application layer submodule 421, return the APN corresponding to the second PDN connection to the application layer submodule 421; After the new PDN activation request, the application layer sub-module 421 returns an activation success message, where the new PDN activation request carries the APN corresponding to the second PDN connection, and the activation success message carries the second PDN connection. information.

In the embodiment of the present invention, the related information of the second PDN connection includes at least one of the following information: a second PDN connection corresponding IP address, and a second PDN connection corresponding DNS.

Based on the same inventive concept, an embodiment of the present invention provides a user equipment UE. As shown in FIG. 5, the UE includes: a transceiver 51, and a processor 52 connected to the transceiver 51, where:

The processor 52 is configured to: after registering to the LTE network, determine to establish a first PDN connection failure for transmitting data services with the LTE network; and transmit the UE by using a second PDN connection established in the registration process. The data service between the LTE networks, where the APN corresponding to the second PDN connection supports a type of data service to be transmitted.

Preferably, transceiver 51 is coupled to processor 52 via a bus.

In the UE provided by the embodiment of the present invention, after the UE is registered to the LTE network, the application layer of the UE determines that the UE and the LTE network fail to establish a first PDN connection for transmitting data services; The established second PDN connection is used to transmit data services between the user equipment to which the UE belongs and the LTE network. The APN corresponding to the second PDN connection supports the type of data service to be transmitted. Since the APN corresponding to the second PDN connection can support the type of data service to be transmitted at this time, the user equipment can transmit the user by using the second PDN connection. The data service between the device and the LTE network meets the needs of users to use data services under the LTE network to improve the user experience.

In an implementation, the processor 52 determines that the first PDN connection failure for establishing a data service with the LTE network fails, including the following two cases:

The first case: if the transceiver 51 initiates a PDN activation request to the network server, receiving the reject message returned by the network server, the processor 52 determines that the first PDN connection for establishing the data service with the LTE network fails. .

In this case, if the UE has an APN of a type that supports the data service to be transmitted, the transceiver 51 initiates a PDN activation request to the network server, and carries the type of data service supporting the required transmission in the PDN activation request. APN.

Further, if the network server accepts the PDN activation request, establishing a first PDN connection for transmitting the data service, and returning an accept message to the transceiver 51;

If the network server determines that the APN carried in the PDN activation request is an erroneous APN, the network server rejects the PDN activation request and returns a rejection message to the transceiver 51.

1. Use APN in 3G network;

The second case: If the processor 52 determines that the user equipment does not have an APN of a type that supports the data traffic required for transmission, it is determined that the first PDN connection established for transmitting the data service with the LTE network fails.

Specifically, the processor 52 includes: an application layer 521 and a modem 522, where: an application layer 521 is configured to acquire the second PDN connection from the modem 522 after determining that the first PDN connection fails to be established with the LTE network. Correlating information; and configuring, according to the obtained related information of the second PDN connection, a data service channel to use the second PDN connection to transmit data services between the LTE network and the LTE network. Specifically, the application layer 521 is specifically configured to: send a query request to the modem 522 to query the APN corresponding to the second PDN connection; and after receiving the APN corresponding to the second PDN connection returned by the modem 522, initiate a new call to the modem 522. The PDN activation request, where the new PDN activation request carries the APN corresponding to the second PDN connection; and receives the activation success message returned by the modem 522, where the activation success message carries the second PDN connection related information.

Correspondingly, the modem 522 is specifically configured to: after receiving the query request of the application layer 521, return the APN corresponding to the second PDN connection to the application layer 521; and after receiving the application layer 521 to initiate a new PDN activation request, apply to the application layer. The 521 returns an activation success message, where the new PDN activation request carries the APN corresponding to the second PDN connection, and the activation success message carries the related information of the second PDN connection.

Preferably, the application layer 521 and the modem 522 are connected by a bus.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of one or more computer program products embodied on a computer-usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart. The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Although the preferred embodiment of the invention has been described, it will be apparent to those skilled in the < Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and modifications The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of the inventions

Claims

Rights request

A data transmission method, characterized in that the method comprises:

The UE uses the second PDN connection established in the registration process to transmit data services between the UE and the LTE network, where the access point name APN corresponding to the second PDN connection supports the data service to be transmitted. type.

The method of claim 1, wherein the determining, by the UE, that the first PDN connection for transmitting the data service is established with the LTE network, includes:

The method according to claim 1 or 2, wherein the UE uses the second PDN connection established in the registration process to transmit data services between the LTE network and the LTE network, including:

The application layer of the UE performs configuration of a data service channel according to the obtained related information of the second PDN connection, to use the second PDN connection to transmit data services between the LTE network and the LTE network.

The method of claim 3, wherein the application layer of the UE acquires the information about the second PDN connection from the modem of the UE, including:

The application layer of the UE receives the second PDN returned by the modem of the UE After the corresponding APN is connected, a new PDN activation request is initiated to the modem of the UE, where the new PDN activation request carries the APN corresponding to the second PDN connection;

The application layer of the UE receives the activation success message returned by the modem of the UE, and the activation success message carries the related information of the second PDN connection.

The method according to claim 3 or 4, wherein the related information of the second PDN connection comprises at least one of the following information:

6. A user equipment, wherein the user equipment comprises:

The user equipment of claim 6, wherein the first processing module determines that the first PDN connection failure for establishing a data service with the LTE network fails, including:

The user equipment according to claim 6 or 7, wherein the second processing module comprises: an application layer submodule and a modem submodule, wherein:

The application layer sub-module, configured to acquire, after the determining that the first PDN connection with the LTE network fails, obtain information about the second PDN connection from the modem sub-module; The information about the second PDN connection is configured to perform a data service channel to transmit data services between the user equipment and the LTE network by using the second PDN connection.

The user equipment according to claim 8, wherein the application layer submodule is specifically configured to:

Sending a query request to the modem submodule to query the APN corresponding to the second PDN connection; after receiving the APN corresponding to the second PDN connection returned by the modem submodule, The modem sub-module initiates a new PDN activation request, the new PDN activation request carries the APN corresponding to the second PDN connection; and receives an activation success message returned by the modem sub-module, where The information about the second PDN connection is carried in the activation success message.

The user equipment according to claim 8 or 9, wherein the related information of the second PDN connection comprises at least one of the following information:

11. A user equipment, the user equipment comprising: a transceiver, and a processor coupled to the transceiver, wherein:

The processor, after registering to the Long Term Evolution (LTE) network, determining that the first packet data network PDN connection for establishing the data service with the LTE network fails; and using the second PDN connection established during the registration process And transmitting a data service between the UE and the LTE network, where the access point name APN corresponding to the second PDN connection supports a type of data service to be transmitted.

The user equipment according to claim 11, wherein the processor determines that the first PDN connection failure for establishing a data service with the LTE network fails, including:

If the transceiver initiates a PDN activation request to the network server, receiving a reject message returned by the network server, determining that the first PDN connection for establishing a data service with the LTE network fails, the PDN activation request carrying APN parameter; or

The user equipment according to claim 11 or 12, wherein the processor package Including: application layer and modem, where:

The application layer, configured to acquire, after the failing to establish the first PDN connection with the LTE network, information related to the second PDN connection from the modem; and according to the acquired second PDN The related information of the connection is configured to perform a data service channel to transmit data services between the user equipment and the LTE network by using the second PDN connection.

The user equipment according to claim 13, wherein the application layer is specifically configured to: send a query request to the modem to query an APN corresponding to the second PDN connection; and receive the modem After the returned APN is connected to the corresponding APN, the device initiates a new PDN activation request to the modem, where the new PDN activation request carries the APN corresponding to the second PDN connection; and receives the return from the modem. The activation success message, where the activation success message carries related information of the second PDN connection.

The user equipment according to claim 13 or 14, wherein the information about the second PDN connection includes at least one of the following information: