WO2017133679A1

WO2017133679A1 - Method and device for transmitting data borne by nas

Info

Publication number: WO2017133679A1
Application number: PCT/CN2017/072873
Authority: WO
Inventors: 陆婷; 余媛芳; 李志军
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-05
Filing date: 2017-02-04
Publication date: 2017-08-10
Also published as: CN107046734A; CN107046734B

Abstract

Provided are a method and device for transmitting data borne by NAS. The method comprises: acquiring a non-access stratum (NAS) signaling for bearing application layer data; and triggering, according to the NAS signaling, an access stratum (AS) radio resource control (RRC) connection establishment procedure, and transmitting the NAS signaling on the RRC connection. The invention solves a problem in the prior art in which data cannot be effectively borne by an NAS signaling and transmitted on a RRC connection, thereby increasing data transmission efficiency.

Description

NAS bearer data transmission method and device

Technical field

The present invention relates to the field of communications, and in particular to a method and an apparatus for transmitting NAS bearer data.

Background technique

Machine to Machine (M2M) communication is an important subject of the fifth generation of mobile communication technology (5G), and an important application field for wireless communication in the future. In the M2M project, for the terminal characteristics such as low cost, low power consumption, low mobility, low throughput, etc., a sub-topic of the NarowBand-Internet of Things (hereinafter referred to as NB-IoT) research is proposed, that is, at 200khz. In the frequency band, the NB-IoT low-cost terminal (User Equipment, hereinafter referred to as UE) provides low-throughput wireless communication services.

In order to reduce the signaling overhead and reduce the power consumption of the NB-IoT terminal, the related technology introduces two small data transmission methods:

1. Control plane optimization mode (hereinafter referred to as CP mode): The data bearer (Date Resource Bearer, referred to as DRB) between the terminal and the base station is not established between the terminal and the network, and the AS security context is not established, and the data is Encapsulated into NAS PDUs attached to control plane signaling for transmission. The effect of saving signaling in this way is obvious, but the length of the data packet transmitted at one time is limited. For a relatively large data packet, it needs to be divided into multiple small packets to be sent. In the case of poor coverage, the packet loss problem is easily caused. It is difficult for the receiver to receive the complete packet.

2. User plane optimization mode (hereinafter referred to as UP mode): The terminal establishes a complete connection with the network, and uses DRB to transmit data. After the data transmission is completed, the bearer information is saved on the terminal and the network side by the suspending process, and the access layer (Access) Stratum, referred to as AS) security context, etc., when the data is sent again, the two parties restore the previously saved context through the recovery process and continue to use the DRB bearer to transmit data. This method is not much different from the existing process, and there is no significant limitation on the length of the data packet, but the effect of saving signaling is limited.

For the above two methods, or all the control plane information that needs to be encapsulated into a non-access stratum (Non Access Stratum, NAS) protocol data unit (PDU) and attached to the RRC connection establishment In the optimization scheme of the transmission, there are the following problems:

In the related art, the NAS process for triggering the establishment of the RRC connection of the AS layer is only Attach, Tracking Area Update, Detach, and Service Request, but the corresponding NAS signaling cannot accommodate user data, and the Service Request message is taken as an example. The structure is shown in Table 1:

Table 1 (3GPP 24.301) Table 8.2.25.1: SERVICE REQUEST message content

2. In the related art, the following two sets of NAS signaling provide data containers, which can be used to carry application layer data, namely Downlink NAS Transport/uplink NAS Transport and Downlink generic NAS transport/Uplink generic NAS transport. However, Downlink NAS Transport/uplink NAS Transport signaling, the existing protocol can only be used to carry short message (SMS) data. In addition, the protocol requires that the above two sets of NAS signaling can only be used in the EMM-CONNECTED mode on the terminal and the network side, and only after the terminal and the network side complete the RRC connection establishment, the evolved packet domain system mobility management (Evolved Packet System) The Mobility Management (EMM) entity will enter the EMM-CONNECTED mode. Therefore, in the existing protocol, when the terminal is in the idle state and the application layer data needs to be sent, the above two sets of NAS signaling cannot be used.

3. In the CP solution, in the related art, only one signaling bearer (Signal Resource Bearer) SRB1 signaling bearer between the terminal and the base station is established on the air interface, and the DRB data bearer is not established. The NAS signaling sent by the terminal or the network needs to be carried on the SRB1 signaling, whether it is a common NAS signaling, such as the Tracking Area Update Requet/Tracking Area Update Accept or the NAS signaling that encapsulates the application layer data. Obviously, The NAS signaling packet encapsulating the application layer data has a large length and a large transmission overhead, which may affect the transmission of common NAS signaling. The related art has mentioned various schemes for transmitting normal NAS signaling and NAS signaling encapsulated data according to different priorities, but currently the terminal and the network side cannot effectively distinguish between the two types of NAS signaling, especially the terminal. And when the network side is in the idle state.

For the related art, in the transmission scheme in which the user plane data needs to be encapsulated into a NAS PDU and attached to the control plane signaling established by the RRC connection establishment, an effective solution has not been found yet.

Summary of the invention

The embodiment of the invention provides a method and a device for transmitting NAS bearer data, so as to at least solve the problem that the related art cannot effectively carry data on NAS signaling and transmit on the RRC connection.

According to an embodiment of the present invention, a method for transmitting NAS bearer data is provided, including: acquiring non-access stratum NAS signaling for carrying application layer data; and triggering access layer AS radio resources according to the NAS signaling Controlling an RRC connection setup procedure and transmitting the NAS signaling on the RRC connection.

Further, the NAS signaling includes: the created NAS signaling dedicated to carrying the application layer data and triggering the AS RRC connection establishment procedure; or the NAS signaling obtained by modifying the existing NAS signaling.

Further, the NAS signaling includes the created dedicated to bear the application layer data and triggers the AS RRC connection establishment. In the case of the NAS signaling of the process, the method further includes: setting a NAS process corresponding to the NAS signaling for the NAS signaling.

Further, the AS RRC connection establishment procedure is triggered according to the NAS signaling, and the access layer AS RRC connection establishment is triggered according to the NAS signaling when the EMM of the terminal and/or the network element of the network side is in an idle mode or a connected mode. Process.

Further, the NAS signaling includes at least one of the following: uplink signaling and downlink signaling.

Further, the NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry the application layer data.

Further, the NAS signaling has an information element for identifying application layer data characteristics.

Further, the application layer data feature includes one of the following: IP, non-IP, and short message service SMS.

Further, before acquiring the NAS signaling for carrying the application layer data, the method further includes: establishing a connection interface for data transmission between the EMM and the application layer entity, where the EMM is a terminal and/or a network side network element. EMM; acquiring the application layer data by using the connection interface, and filling the application layer data into the NAS signaling.

Further, the application layer entity includes at least one of the following: a service gateway SGW, a non-IP data server, and a short message server.

Further, the network side network element is a mobility management unit MME.

Further, the triggering the AS RRC connection establishment procedure according to the NAS signaling includes: the AS layer of the terminal UE triggers an air interface process, and sets the air interface process reason according to the NAS signaling;

Further, the air interface process causes at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting.

Further, the NAS bearer data includes at least one of the following: NAS bearer data of the call origin, NAS bearer data of the called, and the NAS bearer signaling includes at least one of the following: the bearer NAS bearer signaling, and the called The NAS bearer signaling; the NAS bearer abnormal reporting includes at least one of the following: the abnormality of the NAS bearer reported by the calling, and the abnormal reporting of the called NAS bearer.

Further, the originating NAS bearer data includes at least one of the following: the NAS bearer IP data of the originating call, the NAS bearer non-IP data of the originating call, and the NAS bearer SMS data of the originating call; the called NAS bearer The data includes at least one of the following: the called NAS carries the IP data, the called NAS carries the non-IP data, and the called NAS carries the SMS data.

Further, the RRC air interface process includes at least one of the following: an RRC connection establishment procedure, an RRC re-establishment procedure, an RRC connection recovery procedure, a paging procedure, and an air interface data transmission procedure.

Further, in the air interface process, the AS layer of the terminal attaches multiple NAS signalings to the same first air interface uplink message.

Further, in the air interface process, the AS layer of the terminal attaches multiple NAS signalings to different first air interface uplink messages.

Further, after the AS layer of the terminal attaches the plurality of the NAS signaling to the first air interface uplink message, the method further includes: setting the first air interface message and the second air interface message. Priority, wherein the second air interface message is an air interface message to which the existing NAS signaling is attached; and the first air interface message and the second air interface message are bearer transmitted according to the priority.

According to an embodiment of the present invention, a method for transmitting NAS bearer data is provided, including: acquiring first NAS signaling for carrying application layer data; and the first NAS signaling and capable triggering access layer The second NAS signaling of the AS RRC connection establishment procedure is simultaneously transmitted.

Further, the triggering the AS RRC connection establishment procedure according to the second NAS signaling includes: the AS of the terminal UE triggers an air interface RRC connection establishment procedure, and according to the first NAS signaling and/or the second NAS signaling setup The reason for the air interface process.

Further, the first NAS signaling includes at least one of the following: uplink signaling and downlink signaling.

Further, the first NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry the application layer data.

Further, the first NAS signaling has an information element for identifying an application layer data feature.

Further, before acquiring the first NAS signaling for carrying the application layer data, the method further includes: establishing a connection interface for data transmission between the ESM and the application layer entity, where the ESM is a terminal and/or a network side network The ESM of the element is obtained by acquiring the application layer data through the connection interface, and filling the application layer data into the NAS signaling.

Further, the network side network element is a mobility management unit MME.

Further, the originating NAS bearer data includes at least one of the following: the NAS bearer IP data of the originating call, the NAS bearer non-IP data of the originating call, and the NAS bearer SMS data of the originating call; the called NAS bearer The data includes at least one of the following: the called NAS carries the IP data, the called NAS carries the non-IP data, and the called NAS carries the SMS. data.

According to an embodiment of the present invention, a method for transmitting NAS bearer data is provided, acquiring NAS signaling for carrying application layer data, and setting a feature identifier of the NAS signaling, where the feature identifier is used for And indicating that the NAS signaling type is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting; and the NAS signaling is transmitted between the terminal and the network side network element according to the feature identifier.

Further, the NAS signaling includes: the created NAS signaling dedicated to carrying the application layer data; or the NAS signaling obtained by modifying the existing NAS signaling.

Further, the NAS signaling has an information unit for identifying an application layer data feature, where the application layer data feature is used to indicate a data type of the application layer data, where the application layer data feature includes one of the following : NAS carries IP data, NAS bears non-IP data, NAS bears SMS data, NAS bears IP data, NAS bears non-IP data, NAS bears SMS data.

Further, the network side network element sets the feature identifier of the NAS signaling in the S1 interface message used to deliver the NAS signaling to the peer network element.

Further, the AS layer of the terminal includes, according to the feature identifier of the NAS signaling, attaching the NAS signaling to a suitable air interface bearer or setting an appropriate priority for the attached air interface bearer.

Further, the network side network element sets priority information for the NAS signaling in the S1 interface according to the feature identifier of the NAS signaling.

Further, the network side network element performs a corresponding operation according to the feature identifier or the priority information in the S1 interface message.

Further, the terminal performs a corresponding operation according to one of the following information: the feature identifier of the NAS signaling, the air interface bearer, and the priority information carried by the air interface.

Further, the network side network element includes an MME or an eNB.

According to another embodiment of the present invention, a NAS bearer data transmission apparatus is provided, including: an obtaining module, configured to acquire NAS signaling for carrying application layer data; and a triggering module, configured to be according to the NAS signaling The access layer AS radio resource control RRC connection establishment procedure is triggered, and the NAS signaling is transmitted on the RRC connection.

According to another embodiment of the present invention, there is provided another method comprising: an obtaining module, configured to acquire first NAS signaling for carrying application layer data; and a transmitting module configured to enable the first NAS signaling and capable The second NAS signaling that triggers the access layer AS RRC connection establishment procedure is simultaneously transmitted.

According to another embodiment of the present invention, the method further includes: an obtaining module, configured to acquire NAS signaling for carrying application layer data; and a setting module, configured to set a feature identifier of the NAS signaling, where The feature identifier is used to indicate that the type of the NAS signaling is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting; and the transmitting module is configured to identify the terminal and the network side network according to the feature identifier. The NAS signaling is transmitted between the elements.

In the embodiment of the present invention, a computer storage medium is further provided, and the computer storage medium may store an execution instruction, where the self-instruction is used to implement the implementation of the NAS bearer data transmission method in the foregoing embodiment.

The NAS signaling for carrying the application layer data is first obtained by the embodiment of the present invention, and then the access layer AS radio resource control RRC connection establishment procedure is triggered according to the NAS signaling, and the NAS is transmitted on the RRC connection. Signaling. The bearer application layer is carried in the NAS signaling to form the NAS bearer data, and then the RRC connection setup procedure is triggered to send the NAS bearer data, which solves the problem that the related technology cannot effectively carry the data on the NAS signaling and transmit on the RRC connection. The problem, in turn, achieves the effect of improving data transmission efficiency.

DRAWINGS

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

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

2 is a flowchart of another NAS bearer data transmission method according to an embodiment of the present invention;

FIG. 3 is a flowchart of still another method for transmitting NAS bearer data according to an embodiment of the present invention; FIG.

4 is a structural block diagram of a NAS bearer data transmission apparatus according to an embodiment of the present invention;

FIG. 5 is a structural block diagram of another NAS bearer data transmission apparatus according to an embodiment of the present invention; FIG.

FIG. 6 is a structural block diagram of still another NAS bearer data transmission apparatus according to an embodiment of the present invention.

detailed description

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

It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above drawings are used. To distinguish similar objects, and not necessarily to describe a specific order or order.

In this embodiment, a method for transmitting NAS bearer data is provided, which can be applied to a terminal or a network side device, used for data interaction and transmission, and can be transmitted in an idle state. FIG. 1 is implemented according to the present invention. A flowchart of a method for transmitting NAS bearer data, as shown in FIG. 1, the process includes the following steps:

Step S102: Acquire non-access stratum NAS signaling for carrying application layer data.

Step S104, triggering an access layer AS radio resource control RRC connection establishment procedure according to the NAS signaling, and transmitting NAS signaling on the RRC connection.

Through the foregoing steps, the non-access stratum NAS signaling for carrying the application layer data is first obtained, and then the access layer AS radio resource control RRC connection establishment procedure is triggered according to the NAS signaling, and the NAS signaling is transmitted on the RRC connection. The bearer application layer is carried in the NAS signaling to form the NAS bearer data, and then the RRC connection setup procedure is triggered to send the NAS bearer data, which solves the problem that the related technology cannot effectively carry the data on the NAS signaling and transmit on the RRC connection. The problem, in turn, achieves the effect of improving data transmission efficiency.

Optionally, the foregoing NAS signaling in this embodiment may be: creating NAS signaling dedicated to carrying application layer data and triggering an AS RRC connection establishment procedure; or performing NAS signaling obtained by modifying existing NAS signaling. . That is, the NAS signaling may be new NAS signaling, or may be a modification of existing NAS signaling.

In an optional implementation manner of this embodiment, in the case that the NAS signaling includes the created NAS signaling dedicated to carrying the application layer data and triggering the AS RRC connection establishment procedure, the method further includes: setting and configuring the NAS signaling NAS process corresponding to NAS signaling.

Optionally, the triggering the AS RRC connection establishment procedure according to the NAS signaling includes: when the EMM of the terminal and/or the network element of the network side is in the idle mode or the connected mode, triggering the access layer AS radio resource control RRC connection establishment according to the NAS signaling. Process.

Optionally, the NAS signaling includes at least one of the following: uplink signaling and downlink signaling.

Optionally, the NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry application layer data.

Optionally, the NAS signaling has an information unit for identifying an application layer data feature, and the application layer data feature may be used to indicate a data type of the application layer data. Application layer data features include one of the following: IP, non-IP, SMS service SMS.

In an optional implementation manner of the present embodiment, before acquiring the NAS signaling for carrying the application layer data, the method further includes: acquiring the application layer data, including:

S11, establishing a connection interface for data transmission between the EMM and the application layer entity, where the EMM is an EMM of the terminal and/or the network side network element;

S12: Obtain application layer data through the connection interface, and fill the application layer data into the NAS signaling.

Optionally, the application layer entity includes at least one of the following: a service gateway SGW, a non-IP data server, and a short message server. The optional network side network element may be a mobility management unit MME. The terminal can pass the NAS signaling. Call the system interface to get local data, or receive NAS signaling.

In an optional implementation manner of this embodiment, when the execution subject is a terminal, triggering the AS RRC connection establishment procedure according to the NAS signaling includes: the AS layer of the terminal UE triggers an air interface process, and sets an air interface process according to the NAS signaling. the reason.

Optionally, the air interface process may be, but is not limited to, NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting. The NAS bearer data may include at least one of the following: the bearer NAS bearer data and the called NAS bearer data; the NAS bearer signal may include at least one of the following: the NAS bearer signaling of the originating call, and the NAS bearer signal of the called NAS. The NAS bearer abnormal reporting may include at least one of the following: the abnormality of the NAS bearer reported by the calling, and the abnormal reporting of the called NAS bearer.

Optionally, the originating NAS bearer data includes at least one of the following: the NAS bearer IP data of the originating call, the NAS bearer non-IP data of the originating call, and the NAS bearer SMS data of the originating call; the NAS bearer data of the called call includes the following: At least one of the called NAS carries the IP data, the called NAS carries the non-IP data, and the called NAS carries the SMS data.

Optionally, the RRC air interface process in this embodiment may be, but is not limited to, at least one of the following: an RRC connection setup procedure, an RRC re-establishment procedure, an RRC connection recovery procedure, a paging procedure, and an air interface data transmission procedure.

Optionally, in the air interface process, the AS layer of the terminal attaches multiple NAS signalings to the same first air interface uplink message. Of course, the AS layer of the terminal attaches multiple NAS signaling to different first air interface uplink messages.

Optionally, after the AS layer of the terminal attaches the multiple NAS signaling to the first air interface uplink message, the method further includes:

S21: Set a priority of the first air interface message and the second air interface message, where the second air interface message is an air interface message to which the existing NAS signaling is attached;

S22. Perform bearer transmission on the first air interface message and the second air interface message according to the priority.

In this embodiment, another method for transmitting NAS bearer data is provided. The first NAS signaling carrying the application layer data and the second NAS signaling triggering the establishment of the AS layer connection are co-transmitted, and the transmission may be initiated in an idle state. FIG. 2 is a flowchart of another method for transmitting NAS bearer data according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202, acquiring first NAS signaling for carrying application layer data.

Step S204: The first NAS signaling is simultaneously transmitted with the second NAS signaling capable of triggering the access layer AS RRC connection establishment procedure.

In this embodiment, the foregoing first NAS signaling and the second NAS signaling may be the same or different.

In an optional implementation manner according to the present invention, the triggering the AS RRC connection establishment procedure according to the second NAS signaling includes: the AS of the terminal UE triggers an air interface RRC connection establishment procedure, and according to the first NAS signaling and/or the second NAS Signaling sets the cause of the air interface process.

Optionally, the first NAS signaling includes at least one of the following: uplink signaling and downlink signaling.

Optionally, the first NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry application layer data.

Optionally, the first NAS signaling has an information element for identifying an application layer data feature.

Optionally, the application layer data feature includes one of the following: IP, non-IP, and SMS service SMS.

In an optional implementation of the present invention, before acquiring the first NAS signaling for carrying the application layer data, the method further includes:

S31, establishing a connection interface for data transmission between the ESM and the application layer entity, where the ESM is an ESM of the terminal and/or the network side network element;

S32. Obtain application layer data through the connection interface, and fill the application layer data into the NAS signaling.

Optionally, the application layer entity includes at least one of the following: a service gateway SGW, a non-IP data server, and a short message server.

Optionally, the network side network element is a mobility management unit MME.

Optionally, the air interface process causes at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting. The NAS bearer data includes at least one of the following: the NAS bearer data of the originating call and the NAS bearer data of the called. The NAS bearer signaling includes at least one of the following: the NAS bearer signaling of the originating call, and the NAS bearer signaling of the called. The NAS bearer abnormality report includes at least one of the following: the abnormality of the NAS bearer reported by the originating call, and the abnormality of the called NAS bearer.

Optionally, the RRC air interface process includes at least one of the following: an RRC connection establishment process, an RRC re-establishment process, an RRC connection recovery process, a paging process, and an air interface data transmission process.

In an alternative embodiment in accordance with the invention, in the air interface flow, the AS layer of the terminal attaches a plurality of NAS signaling to the same first air interface uplink message; or, in the air interface process, the AS of the terminal The layer attaches multiple NAS signaling to different first air interface uplink messages.

In an optional implementation of the present invention, after the AS layer of the terminal attaches the plurality of NAS signaling to the first air interface uplink message, the method further includes:

S41. Set a priority of the first air interface message and the second air interface message, where the second air interface message is an air interface message to which the existing NAS signaling is attached.

S42. Perform bearer transmission on the first air interface message and the second air interface message according to the priority.

In this embodiment, another method for transmitting NAS bearer data is provided, which can be used for the terminal or the network side device to carry uplink and downlink data for transmission in the connection state. FIG. 3 is a flowchart of still another method for transmitting NAS bearer data according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps:

Step S302: Acquire NAS signaling for carrying application layer data.

Step S304, setting a feature identifier of the NAS signaling, where the feature identifier is used to indicate that the type of the NAS signaling is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting;

Step S306, transmitting NAS signaling between the terminal and the network side network element according to the feature identifier.

Optionally, the NAS signaling includes: creating NAS signaling dedicated to carrying application layer data; or NAS signaling obtained by modifying existing NAS signaling.

In an optional implementation of the present embodiment, the NAS signaling has an information element for identifying an application layer data feature, the application layer data feature is used to indicate a data type of the application layer data, wherein the application layer data feature includes the following 1: NAS carries IP data, NAS bears non-IP data, NAS bears SMS data, NAS bears IP data, NAS bears non-IP data, NAS bears SMS data.

Optionally, the network side network element sets the feature identifier of the NAS signaling in the S1 interface message used to deliver the NAS signaling to the peer network element.

Optionally, the AS layer of the terminal attaches the NAS signaling to the appropriate air interface bearer according to the characteristic identifier of the NAS signaling or sets an appropriate priority for the attached air interface bearer.

Optionally, the network side network element sets priority information for the NAS signaling in the S1 interface according to the characteristic identifier of the NAS signaling. The network side network element performs corresponding operations according to the feature identifier or priority information in the S1 interface message.

When performing the operation specifically, the terminal performs according to one of the following information: the feature identifier of the NAS signaling, the air interface bearer, and the priority information carried by the air interface.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods of various embodiments of the present invention.

In this embodiment, a NAS bearer data transmission device is also provided, which can be applied to a terminal or a network side network element, and implements corresponding functions in the foregoing method embodiments. The device is used to implement the foregoing embodiment and the preferred implementation. The method has been described and will not be described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

4 is a structural block diagram of a NAS bearer data transmission apparatus according to an embodiment of the present invention, as shown in FIG. include:

The obtaining module 40 is configured to acquire NAS signaling for carrying application layer data.

The triggering module 42 is configured to trigger an access layer AS radio resource control RRC connection establishment procedure according to the NAS signaling, and transmit the NAS signaling on the RRC connection.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

FIG. 5 is a structural block diagram of another NAS bearer data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 5, the method includes:

The obtaining module 50 is configured to acquire first NAS signaling for carrying application layer data.

The transmitting module 52 is configured to simultaneously transmit the first NAS signaling with the second NAS signaling capable of triggering the access layer AS RRC connection establishment procedure.

FIG. 6 is a structural block diagram of another NAS bearer data transmission apparatus according to an embodiment of the present invention. As shown in FIG. 6, the method includes:

The obtaining module 60 is configured to acquire NAS signaling for carrying application layer data.

The setting module 62 is configured to set a feature identifier of the NAS signaling, where the feature identifier is used to indicate that the type of the NAS signaling is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting;

The transmission module 64 is configured to transmit NAS signaling between the terminal and the network side network element according to the feature identifier.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. Obtain non-access stratum NAS signaling for carrying application layer data.

S2. The access layer AS radio resource control RRC connection establishment procedure is triggered according to the NAS signaling.

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs to acquire non-access stratum NAS signaling for carrying application layer data according to the stored program code in the storage medium;

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, triggering an access layer AS radio resource control RRC connection establishment procedure according to the NAS signaling.

Optionally, the specific examples in this embodiment may refer to the examples described in the foregoing embodiment and the optional implementation manner. This embodiment is not described here.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

The foregoing technical solution provided by the embodiment of the present invention may be applied to a NAS bearer data transmission process, first acquiring NAS signaling for carrying application layer data, and then triggering an access layer AS radio resource control RRC according to the NAS signaling. A connection establishment procedure is performed and the NAS signaling is transmitted on the RRC connection. The bearer application layer is carried in the NAS signaling to form the NAS bearer data, and then the RRC connection setup procedure is triggered to send the NAS bearer data, which solves the problem that the related technology cannot effectively carry the data on the NAS signaling and transmit on the RRC connection. The problem, in turn, achieves the effect of improving data transmission efficiency.

Claims

A method for transmitting NAS bearer data, comprising:

Obtaining non-access stratum NAS signaling for carrying application layer data;

The access layer AS radio resource control RRC connection establishment procedure is triggered according to the NAS signaling, and the NAS signaling is transmitted on the RRC connection.
The method of claim 1 wherein said NAS signaling comprises:

NAS signaling created to carry application layer data and trigger the AS RRC connection establishment procedure; or

NAS signaling obtained by transforming existing NAS signaling.
The method according to claim 2, wherein, in the case that the NAS signaling includes the created NAS signaling dedicated to carrying application layer data and triggering an AS RRC connection establishment procedure, the method further includes:

A NAS process corresponding to the NAS signaling is set for the NAS signaling.
The method according to claim 1, wherein the triggering the AS RRC connection establishment procedure according to the NAS signaling comprises:

When the EMM of the terminal and/or the network element of the network side is in the idle mode or the connected mode, the access layer AS RRC connection establishment procedure is triggered according to the NAS signaling.
The method according to claim 1, wherein the NAS signaling comprises at least one of: uplink signaling, downlink signaling.
The method of claim 1, wherein the NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry the application layer data.
The method of claim 1 wherein said NAS signaling has an information element for identifying application layer data characteristics.
The method of claim 7, wherein the application layer data feature comprises one of: IP, non-IP, SMS service SMS.
The method of claim 1, wherein before acquiring the NAS signaling for carrying the application layer data, the method further comprises:

Establishing a connection interface for data transmission between the EMM and the application layer entity, where the EMM is an EMM of the terminal and/or the network side network element;

Obtaining the application layer data by using the connection interface, and filling the application layer data into the NAS signaling.
The method of claim 9, wherein the application layer entity comprises at least one of: a service gateway SGW, a non-IP data server, a short message server.
The method according to claim 4 or 9, wherein the network side network element is a mobility management unit MME.
The method according to claim 1, wherein the triggering the AS RRC connection establishment procedure according to the NAS signaling comprises:

The AS layer of the terminal UE triggers an air interface process, and sets the air interface process reason according to the NAS signaling.
The method of claim 12, wherein the air interface process cause comprises at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting.
The method of claim 13 wherein:

The NAS bearer data includes at least one of the following: the NAS bearer data of the calling, and the NAS bearer data of the called;

The NAS bearer signaling includes at least one of the following: a bearer NAS bearer signaling, and a called NAS bearer signaling;

The abnormality reporting of the NAS bearer includes at least one of the following: the abnormality of the NAS bearer that is called, the abnormal reporting of the called NAS bearer.
The method of claim 14 wherein

The originating NAS bearer data includes at least one of the following: the NAS bearer IP data of the calling, the NAS bearer non-IP data of the calling, and the NAS bearer SMS data of the calling.

The called NAS bearer data includes at least one of the following: the called NAS bearer IP data, the called NAS bearer non-IP data, and the called NAS bearer SMS data.
The method according to claim 1, wherein the RRC air interface procedure comprises at least one of the following: an RRC connection setup procedure, an RRC re-establishment procedure, an RRC connection recovery procedure, a paging procedure, and an air interface data transmission procedure.
The method of claim 12, wherein in the air interface flow, the AS layer of the terminal attaches a plurality of the NAS signaling to the same first air interface uplink message.
The method of claim 12, wherein in the air interface flow, the AS layer of the terminal attaches the plurality of NAS signalings to different first air interface uplink messages.
The method of claim 18, wherein after the AS layer of the terminal attaches the plurality of the NAS signaling to the first air interface uplink message, the method further includes:

Setting a priority of the first air interface message and the second air interface message, wherein the second air interface message is an air interface message to which the existing NAS signaling is attached;

And transmitting, by the priority, the first air interface message and the second air interface message.
A method for transmitting NAS bearer data, comprising:

Obtaining first NAS signaling for carrying application layer data;

And transmitting the first NAS signaling to the second NAS signaling that can trigger the access layer AS RRC connection establishment procedure.
The method according to claim 20, wherein the triggering the AS RRC connection establishment procedure according to the second NAS signaling comprises:

The AS of the terminal UE triggers an air interface RRC connection establishment procedure, and sets the air interface process reason according to the first NAS signaling and/or the second NAS signaling.
The method according to claim 20, wherein the first NAS signaling comprises at least one of: uplink signaling, downlink signaling.
The method of claim 20, wherein the first NAS signaling has an application layer data container information unit, and the application layer data container information unit is configured to carry the application layer data.
The method of claim 20 wherein said first NAS signaling has an information element for identifying application layer data characteristics.
The method of claim 24, wherein the application layer data feature comprises one of: IP, non-IP, SMS service SMS.
The method of claim 20, wherein before acquiring the first NAS signaling for carrying the application layer data, the method further comprises:

Establishing a connection interface for data transmission between the ESM and the application layer entity, where the ESM is an ESM of the terminal and/or the network side network element;

Obtaining the application layer data by using the connection interface, and filling the application layer data into the NAS signaling.
The method of claim 26, wherein the application layer entity comprises at least one of: a service gateway SGW, a non-IP data server, a short message server.
The method of claim 26, wherein the network side network element is a mobility management unit MME.
The method of claim 21, wherein the air interface process cause comprises at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting.
The method of claim 29 wherein:

The NAS bearer data includes at least one of the following: the NAS bearer data of the calling, and the NAS bearer data of the called;

The NAS bearer signaling includes at least one of the following: a bearer NAS bearer signaling, and a called NAS bearer signaling;

The NAS bearer abnormality report includes at least one of the following: the abnormality of the NAS bearer reported by the calling, and the called NAS bearer The exception is reported.
The method of claim 30, wherein

The originating NAS bearer data includes at least one of the following: the NAS bearer IP data of the calling, the NAS bearer non-IP data of the calling, and the NAS bearer SMS data of the calling.

The called NAS bearer data includes at least one of the following: the called NAS bearer IP data, the called NAS bearer non-IP data, and the called NAS bearer SMS data.
The method according to claim 21, wherein the RRC air interface procedure comprises at least one of the following: an RRC connection setup procedure, an RRC re-establishment procedure, an RRC connection recovery procedure, a paging procedure, and an air interface data transmission procedure.
The method of claim 32 wherein in said air interface flow, said AS layer of said terminal attaches said plurality of said NAS signaling to a same first air interface uplink message.
The method of claim 33, wherein in the air interface flow, the AS layer of the terminal attaches the plurality of NAS signalings to different first air interface uplink messages.
The method of claim 34, wherein after the AS layer of the terminal attaches the plurality of the NAS signaling to the first air interface uplink message, the method further includes:

Setting a priority of the first air interface message and the second air interface message, wherein the second air interface message is an air interface message to which the existing NAS signaling is attached;

And transmitting, by the priority, the first air interface message and the second air interface message.
A method for transmitting NAS bearer data, comprising:

Obtaining NAS signaling for carrying application layer data;

Setting the feature identifier of the NAS signaling, where the feature identifier is used to indicate that the type of the NAS signaling is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting;

And transmitting, according to the feature identifier, the NAS signaling between the terminal and the network side network element.
The method of claim 36 wherein said NAS signaling comprises:

NAS signaling created to carry application layer data; or

NAS signaling obtained by transforming existing NAS signaling.
The method of claim 36, wherein the NAS signaling has an information element for identifying an application layer data feature, the application layer data feature for indicating a data type of the application layer data, wherein the The application layer data features include one of the following: NAS bearer IP data, NAS bearer non-IP data, NAS bearer SMS data, NAS bearer IP data, NAS bearer non-IP data, and NAS bearer SMS data.
A method according to any one of claims 36 to 38, comprising:

The network side network element sets the feature identifier of the NAS signaling in the S1 interface message used to deliver the NAS signaling to the peer network element.
The method of claim 18, comprising:

The AS layer of the terminal attaches the NAS signaling to a suitable air interface bearer or sets an appropriate priority for the attached air interface bearer according to the characteristic identifier of the NAS signaling.
The method according to claim 39, wherein the network side network element sets priority information for the NAS signaling in the S1 interface according to the feature identifier of the NAS signaling.
The method according to claim 41, wherein the network side network element performs a corresponding operation according to the feature identifier or the priority information in the S1 interface message.
The method of claim 42, wherein the terminal performs a corresponding operation according to one of the following information:

The feature identifier of the NAS signaling, the air interface bearer, and the priority information carried by the air interface.
The method of any of claims 36-42, wherein the network side network element comprises an MME or an eNB.
A NAS bearer data transmission device includes:

Obtaining a module, configured to acquire NAS signaling for carrying application layer data;

The triggering module is configured to trigger an access layer AS radio resource control RRC connection establishment procedure according to the NAS signaling, and transmit the NAS signaling on the RRC connection.
A NAS bearer data transmission device includes:

Obtaining a module, configured to acquire first NAS signaling for carrying application layer data;

And a transmission module, configured to simultaneously transmit the first NAS signaling with a second NAS signaling capable of triggering an access layer AS RRC connection establishment procedure.
A NAS bearer data transmission device includes:

Obtaining a module, configured to acquire NAS signaling for carrying application layer data;

The setting module is configured to set the feature identifier of the NAS signaling, where the feature identifier is used to indicate that the type of the NAS signaling is at least one of the following: NAS bearer data, NAS bearer signaling, and NAS bearer abnormal reporting. ;

The transmission module is configured to transmit the NAS signaling between the terminal and the network side network element according to the feature identifier.