CN106878974A

CN106878974A - A kind of network attached method, user equipment and mobile management entity

Info

Publication number: CN106878974A
Application number: CN201710039971.0A
Authority: CN
Inventors: 龙浩
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2017-01-18
Filing date: 2017-01-18
Publication date: 2017-06-20

Abstract

The invention discloses a kind of network attached method, user equipment and mobile management entity, methods described includes：User equipment (UE) sends Attach Request message by base station eNB to mobile management entity MME；Wherein, the Attach Request message carries at least two solicited messages；The UE receives the MME and returns to attachment response message by the eNB；Wherein, the Attach Request message carries at least two response messages；When the attachment response message is to adhere to successful response message, the UE carries out network attachment by the eNB according to the attachment response message to the MME.The Signalling exchange between UE and MME can be not only reduced, but also the time that UE attachment networks expend can be reduced.

Description

Network attachment method, user equipment and mobility management entity

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a network attachment method, a user equipment, and a mobility management entity.

Background

With the diversified development of terminals, the requirements of the terminals on a network system are higher and higher, so that the performance of cell edge users can be improved, the cell capacity can be improved, and the Long Term Evolution (LTE) application of system delay can be reduced. LTE is a transition between 3G and 4G, which improves and enhances the 3G over-the-air access technology, and adopts OFDM (Orthogonal frequency Division-Division Multiplexing) MIMO (Multiple input Multiple output) as the unique standard of wireless network evolution, thereby achieving the requirements of low latency, low complexity, and low cost.

The network architecture of LTE includes: access network E-UTRAN and core network EPC. The access network consists of a base station eNB; the core network EPC mainly includes: a mobile management entity MME, a home subscriber server HSS, a serving gateway S-GW and a packet data network gateway P-GW.

Specifically, the MME is a signaling entity, and is mainly responsible for functions such as mobility management, bearer management, authentication and authentication of a user, and selection of an S-GW and a P-GW; the S-GW is mainly responsible for user plane processing, routing and forwarding functions of data packets and the like, supports switching of different technologies of the 3GPP, and serves as an anchor point of a user plane when switching occurs; the P-GW is an EPS anchor point, namely an anchor point of a user plane data link between a 3GPP and a non-3GPP network, and is responsible for managing data routing, managing mobility between accesses, and also responsible for functions such as DHCP, policy execution, charging and the like; the HSS is the core network primary database, including subscriber related information.

In the existing LTE network, the access procedure of the UE includes: information broadcast, cell selection, initial access, and Attach. In the area, the attach procedure is a procedure in which the UE registers in the network before performing an actual service. The user can receive the service from the network only after the attachment is successful. The following work is done during the attachment process: 1. the user and the network authenticate each other, and the UE and the MME establish an MM context; 2. the MME establishes a default bearer for the UE; 3. the UE obtains an IP address allocated by a network; 4. registering the position of a user; 5. allocation of temporary identities (S-TMSI).

In the existing method for attaching the UE to the network, the UE NAS layer needs to go through a plurality of links such as an attach request, an attach response, an identity authentication request, an identity authentication response, an authentication request, an authentication response, a security and encryption request, a security and encryption response, and attach completion, and traversing the above links will result in a very large number of signaling interactions between the UE and the MME and a long time consumption.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

by adopting the existing method for attaching the UE to the network, the flow of attaching the UE to the network is very complicated, the signaling interaction is very much, and the consumed time is very long.

Disclosure of Invention

In view of this, embodiments of the present invention are expected to provide a network attach method, a user equipment and a mobility management entity, which can not only reduce signaling interaction between a UE and an MME, but also reduce time consumed by the UE to attach to a network.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a network attachment method, which comprises the following steps:

user Equipment (UE) sends an attachment request message to an MME through an eNB; wherein, the attach request message carries at least two request messages;

the UE receives an attachment response message returned by the MME through the eNB; wherein, the attach request message carries at least two response messages;

and when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message.

In the above embodiment, the attach request message includes: registration request information, identification request information, authentication request information, security mode request information and public data network PDN request information.

In the above embodiment, the attach response message includes: registration response information, identification response information, authentication response information, security mode response information, and PDN response information.

In the above embodiment, the method further comprises:

the MME identifies the UE according to the identification request information in the attachment request message;

and when the MME fails to identify the UE, the MME returns a first response message of attachment failure to the UE.

In the above embodiment, the method further comprises:

the MME authenticates the UE according to the authentication request information in the attachment request message;

and when the MME fails to authenticate the authentication request information, the MME returns a second response message of attachment failure to the UE.

In the above embodiment, the method further comprises:

the MME matches the UE according to the security mode request information in the attachment request message;

and when the MME fails to match the security mode request information, the MME returns a third response message of attachment failure to the UE.

In the above embodiment, the method further comprises:

the MME connects the UE according to the PDN request information in the attachment request message;

and when the connection of the MME to the PDN request information fails, the MME returns a fourth response message of attachment failure to the UE.

An embodiment of the present invention further provides a UE, where the UE includes: a first transmitting unit, a first receiving unit and an attaching unit; wherein,

the first sending unit is configured to send an attach request message to an MME through an eNB; wherein, the attach request message carries at least two request messages;

the first receiving unit is configured to receive, by the eNB, an attach response message returned by the MME; wherein, the attach request message carries at least two response messages;

and the attaching unit is configured to perform network attachment to the MME through the eNB according to the attach response information when the attach response message is a response message indicating that the attachment is successful.

In the above embodiment, the attach request message includes: registration request information, identification request information, authentication request information, security mode request information, and PDN request information.

An embodiment of the present invention further provides an MME, where the MME includes: a second receiving unit and a second transmitting unit; wherein,

the second receiving unit is configured to receive, by the eNB, an attach request message sent by the UE; wherein, the attach request message carries at least two request messages;

the second sending unit is configured to receive, by the eNB, an attach response message returned by the MME; wherein the attach request message carries at least two response messages.

In the above embodiment, the MME further includes:

an identity identification unit, configured to identify the UE according to the identity identification request information in the attach request message;

the second sending unit is further configured to, when the identity recognition of the UE fails, return, by the MME, a first response message of attachment failure to the UE.

In the above embodiment, the MME further includes:

the authentication unit is used for authenticating the UE according to the authentication request information in the attachment request message;

the second sending unit is further configured to, when authentication of the authentication request information fails, return, to the UE, a second response message indicating an attachment failure by the MME.

In the above embodiment, the MME further includes:

a matching unit, configured to match the UE according to the security mode request information in the attach request message;

the second sending unit is configured to, when matching of the security mode request information fails, return, by the MME, a third response message of attachment failure to the UE.

In the above embodiment, the MME further includes:

a connection unit, configured to connect to the UE according to the PDN request information in the attach request message;

the second sending unit is further configured to, when connection to the PDN request information fails, return, by the MME, a fourth response message of attachment failure to the UE.

Therefore, in the technical scheme of the embodiment of the invention, the UE firstly sends an attachment request message to the MME through the eNB; wherein, the attach request message carries at least two request messages; then UE receives an MME return attachment response message through the eNB; wherein, the attach request message carries at least two response messages; and when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message. That is to say, in the technical solution of the present invention, the UE can perform network attachment only by sending a request message to the MME once. However, in the prior art, the UE needs to send multiple request messages to the MME for network attachment. Therefore, compared with the prior art, the network attachment method, the UE and the MME provided in the embodiments of the present invention can not only reduce signaling interaction between the UE and the MME, but also reduce time consumed by the UE to attach to the network; moreover, the technical scheme of the embodiment of the invention is simple and convenient to realize, convenient to popularize and wider in application range.

Drawings

FIG. 1 is a diagram illustrating a hardware configuration of an alternative user device 100 for implementing various embodiments of the present invention;

fig. 2 is a schematic diagram of a wireless communication system of the user equipment 100 shown in fig. 1;

fig. 3 is a schematic flow chart illustrating a network attachment method according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a UE according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an MME according to an embodiment of the present invention.

Detailed Description

It should be understood that the embodiments described herein are only for explaining the technical solutions of the present invention, and are not intended to limit the scope of the present invention.

A user equipment implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.

The user equipment may be implemented in various forms. For example, the terminal described in the present invention may include user equipment such as a mobile phone, a smart phone, a notebook computer, a digital broadcast receiver, a Personal Digital Assistant (PDA), a PAD computer (PAD), a Portable Multimedia Player (PMP), a navigation device, and the like.

Fig. 1 is a schematic hardware structure of a user equipment 100 for implementing various embodiments of the present invention, and as shown in fig. 1, the user equipment 100 may include: a wireless communication unit 110, a user input unit 120, a sensing unit 130, an output unit 140, a memory 150, an interface unit 160, a controller 170, and a power supply unit 180, etc. Fig. 1 shows a user device 100 having various components, but it is understood that not all of the illustrated components are required to be implemented. More or fewer components may alternatively be implemented. The elements of the user equipment 100 will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the user equipment 100 and a wireless communication system or network. For example, the wireless communication unit 110 may include: at least one of a mobile communication module 111, a wireless internet module 112, and a short-range communication module 113.

The mobile communication module 111 transmits and/or receives radio signals to and/or from at least one of a base station (e.g., access point, node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless internet module 112 supports wireless internet access of the user equipment 100. The wireless internet module 112 may be internally or externally coupled to the terminal. The wireless internet access technology referred to by the wireless internet module 112 may include Wireless Local Area Network (WLAN), wireless compatibility authentication (Wi-Fi), wireless broadband (Wibro), worldwide interoperability for microwave access (Wimax), High Speed Downlink Packet Access (HSDPA), and the like.

Short rangeThe communication module 113 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetooth^TMRadio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), zigbee^TMAnd the like.

The user input unit 120 may generate key input data to control various operations of the user device 100 according to a command input by a user. The user input unit 120 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects a change in resistance, pressure, capacitance, etc. due to being touched), a jog wheel, a jog stick, etc. In particular, when the touch pad is superimposed on the display unit 141 in the form of a layer, a touch screen may be formed.

The sensing unit 130 detects a current state of the user device 100 (e.g., an open or closed state of the user device 100), a position of the user device 100, presence or absence of contact (i.e., touch input) by the user with the user device 100, an orientation of the user device 100, acceleration or deceleration movement and direction of the user device 100, and the like, and generates a command or signal for controlling an operation of the user device 100. For example, when the user device 100 is implemented as a slide-type mobile phone, the sensing unit 130 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 130 can detect whether the power supply unit 180 supplies power or whether the interface unit 160 is coupled with an external device.

The interface unit 160 serves as an interface through which at least one external device is connected to the user equipment 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port (a typical example is a Universal Serial Bus (USB) port), a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like.

The interface unit 160 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the user equipment 100 or may be used to transmit data between the user equipment 100 and the external device.

In addition, when the user equipment 100 is connected with an external cradle, the interface unit 160 may serve as a path through which power is supplied from the cradle to the user equipment 100 or may serve as a path through which various command signals input from the cradle are transmitted to the user equipment 100. Various command signals or power input from the cradle may be used as signals for recognizing whether the user equipment 100 is accurately mounted on the cradle.

The output unit 140 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 140 may include a display unit 141, an audio output module 142, and the like.

The display unit 141 may display information processed in the user equipment 100. For example, when the user device 100 is in a phone call mode, the display unit 141 may display a User Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the user device 100 is in a video call mode or an image capturing mode, the display unit 141 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, or the like.

Meanwhile, when the display unit 141 and the touch pad are stacked on each other in the form of layers to form a touch screen, the display unit 141 may function as an input device and an output device. The display unit 141 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display or the like. According to a particularly desired embodiment, the user device 100 may comprise two or more display units (or other display means), for example, the user device 100 may comprise an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.

The audio output module 142 may convert audio data received by the wireless communication unit 110 or stored in the memory 150 into an audio signal and output as sound when the user equipment 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output module 142 may provide audio output related to a specific function performed by the user device 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output module 142 may include a speaker, a buzzer, and the like.

The memory 150 may store software programs or the like for processing and controlling operations performed by the controller 170, or may temporarily store data (e.g., a phonebook, messages, still images, videos, etc.) that has been output or is to be output. Also, the memory 150 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.

The Memory 150 may include at least one type of storage medium including a flash Memory, a hard disk, a multimedia card, a card type Memory (e.g., SD or DX Memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a Read Only Memory (ROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Programmable Read Only Memory (PROM), a magnetic Memory, a magnetic disk, an optical disk, etc. Also, the user equipment 100 may cooperate with a network storage device that performs a storage function of the memory 150 through a network connection.

The controller 170 generally controls the overall operation of the user equipment 100. For example, the controller 170 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 170 may include a multimedia module 171 for reproducing or playing back multimedia data, and the multimedia module 171 may be constructed within the controller 170 or may be constructed separately from the controller 170. The controller 170 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 180 receives external power or internal power and provides appropriate power required to operate the respective elements and components under the control of the controller 170.

The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 170. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in memory 150 and executed by controller 170.

Up to this point, the user equipment 100 has been described in terms of its functionality. Hereinafter, the sliding-type user equipment 100 among various types of user equipment 100, such as the folder-type, bar-type, swing-type, sliding-type user equipment 100, etc., will be described as an example for the sake of brevity. Therefore, the present invention can be applied to any type of user equipment 100, and is not limited to the sliding type user equipment 100.

The user equipment 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which the user equipment 100 according to the present invention is operable will now be described with reference to fig. 2.

Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (particularly, LTE), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to fig. 2, the CDMA wireless communication system may include a plurality of user equipments 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the BS270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 275.

Each BS270 may serve one or more sectors (or regions), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz, 5MHz, etc.).

The intersection of partitions with frequency allocations may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each sector of a particular BS270 may be referred to as a plurality of cell sites.

As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various user equipments 100. User devices 100 are typically engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular BS270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC provides call resource allocation and mobility management functions including coordination of soft handoff procedures between BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the user equipment 100.

The mobile communication module 112 of the wireless communication unit 110 in the user equipment accesses the mobile communication network based on the necessary data (including the user identification information and the authentication information) built in the user equipment and accessing the mobile communication network (such as the mobile communication network of 2G/3G/4G, etc.) to transmit the mobile communication data (including the uplink mobile communication data and the downlink mobile communication data) for the services of web browsing, network multimedia playing, etc. of the user equipment user.

The wireless internet module 113 of the wireless communication unit 110 implements the function of the wireless hotspot by operating the related protocol function of the wireless hotspot, the wireless hotspot supports the access of a plurality of user equipments (any user equipment except the user equipment), transmits mobile communication data (including uplink mobile communication data and downlink mobile communication data) for services such as web browsing, network multimedia playing and the like of a user equipment user through multiplexing a mobile communication connection between the mobile communication module 112 and a mobile communication network, since the user equipment essentially multiplexes the mobile communication connection between the user equipment and the communication network for transmitting mobile communication data, the traffic of the mobile communication data consumed by the user equipment is charged to the communication tariff of the user equipment by a charging entity on the side of the communication network, thereby consuming the data traffic of the mobile communication data included in the communication tariff contracted for use by the user equipment.

Based on the above hardware structure of the user equipment 100 and the communication system, various embodiments of the method of the present invention are proposed.

Fig. 3 is a schematic flow chart illustrating a network attachment method according to an embodiment of the present invention. As shown in fig. 3, the network attachment method may include the steps of:

step 301, the UE sends an attach request message to the MME through the eNB; wherein the attach request message carries at least two request messages.

In an embodiment of the present invention, the attach request message includes: registration request information, identification request information, authentication request information, security mode request information, and PDN request information.

Specifically, in the specific embodiment of the present invention, the UE may initiate a registration request according to registration information such as a globally unique temporary UE identifier GUTI and PTMSI acquired when the network is registered last time; if the UE cannot acquire the registration information such as GUTI and PTMSI, the UE can initiate a registration request by adopting the international mobile subscriber identity IMSI.

Specifically, in the embodiment of the present invention, the UE may use the IMSI for identification.

Specifically, in the specific embodiment of the present invention, the UE sends parameters RAND and AUTN to the MME; MME uses quadruplets RAND, RES, AUTN and K (asme). Wherein, RAND is random number; AUTN is authentication of UE by MME; RES is authentication of MME by UE; k (asme) is used for integrity discrimination, encryption protection and the like of NAS signaling between the UE and the MME.

In particular, in particular embodiments of the present invention, the NAS layer security mode request is primarily used as a ciphering and integrity protection for NAS signaling. In the signaling, the UE reports the security mode capability supported by the UE.

Specifically, in the specific embodiment of the present invention, when initiating a PDN connection, the UE may initiate a multiple PDN connection request according to a service that has been started in the setting, so as to reduce the number of times of initiating the service request.

Step 302, the UE receives an attachment response message returned by the MME through the eNB; wherein the attach request message carries at least two response messages.

In an embodiment of the present invention, the attach response message includes: registration response information, identification response information, authentication response information, security mode response information, and PDN response information.

Specifically, in the specific embodiment of the present invention, after receiving an attach request message sent by the UE through the eNB, the MME may perform identity authentication on the UE. If the UE reports GUTI, PTMSI and IMEI information, the MME verifies that the UE legally initiates an authentication response; if the MME verifies that the UE is illegal, the MME returns a first response message of attachment failure to the UE, and the user is required to reinitiate a network injection request by using the IMSI and make an authentication response to the UE. Wherein, the first response information of the attach failure may include: the reason for the error identification of the UE requires adopting IMSI identification and response parameter RES carried after successful authentication. If the UE reports the IMSI and IMEI information and the MME verifies that the UE is legal, an authentication response is initiated; if the MME verifies that the UE is illegal, the MME returns a first response message of attachment failure to the UE; wherein, the first response information of the attach failure may include: the reason for the UE identity recognition error.

Specifically, in the specific embodiment of the present invention, after authenticating the identity of the UE, the MME transmits the parameters RAND and AUTN to the HSS, and the HSS checks the legitimacy of the RAND and the AUTN. And if the RAND and the AUTN are legal, the HSS generates the RES according to the RAND and the AUTN and sends the RES to the UE through a response message of successful attachment. If RAND and AUTN are illegal, HSS feeds back message to UE via the second response message of failed attachment. Wherein the attach failure second response message may include: reason for UE authentication failure.

In the specific embodiment of the present invention, after the identity authentication and authentication of the UE are successful, the MME selects an appropriate algorithm for encryption and security protection according to the security capability reported by the UE, and downloads the algorithm to the UE in a response message with successful attachment. If the security capability of the UE does not match the security capability of the MME, the MME feeds back to the UE through a third response message of attachment failure, where the third response message of attachment failure may include: the reason for the failure of NAS layer security mode.

In the specific embodiment of the invention, if the MME successfully authenticates the UE, the MME preferentially checks parameters such as IP type, APN, QOS parameters and the like related to default bearer in a data domain. And if the parameters are wrong, the MME stops the subsequent PDN connection processing and feeds back default bearer establishment failure to the UE through a fourth response message of attachment failure, and prompts the user of the reason of the error. Wherein the fourth response message of the attach failure may include: data field default bearer establishment failure reason. If the parameters are correct, the MME establishes PDN connection of default bearer of the data domain, and feeds back specific IP addresses, QOS parameters and the like to the UE. And then parameters such as IP type, APN, QOS parameters and the like of each PDN connection in the rest PDN connections are checked in sequence. If the other PDN connection parameters correctly establish the PDN connection, feeding back specific IP addresses, QOS parameters and the like to the UE; and if the other PDN connection parameters are wrong, the PDN connection is failed to be established and the wrong reason is fed back to the UE.

And 303, when the attach response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attach response message.

In a specific embodiment of the present invention, the attach response message may include: a response message of attachment success and a response message of attachment failure. And when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message.

Preferably, in the embodiment of the present invention, the MME may perform identity identification on the UE according to the identity identification request information in the attach request message; and when the MME fails to identify the UE, the MME returns a first response message of attachment failure to the UE.

Preferably, in the embodiment of the present invention, the MME may further authenticate the UE according to the authentication request information in the attach request message; and when the MME fails to authenticate the authentication request information, the MME returns a second response message of attachment failure to the UE.

Preferably, in the embodiment of the present invention, the MME may further match the UE according to the security mode request information in the attached request message; and when the MME fails to match the security mode request information, the MME returns a third response message of attachment failure to the UE.

Preferably, in the embodiment of the present invention, the MME may further connect the UE according to the PDN request information in the attach request message; and when the MME fails to connect the PDN request information, the MME returns a fourth response message of attachment failure to the UE.

In the network attachment method provided by the embodiment of the invention, UE firstly sends an attachment request message to MME through eNB; wherein, the attach request message carries at least two request messages; then UE receives an MME return attachment response message through the eNB; wherein, the attach request message carries at least two response messages; and when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message. That is to say, in the technical solution of the present invention, the UE can perform network attachment only by sending a request message to the MME once. However, in the prior art, the UE needs to send multiple request messages to the MME for network attachment. Therefore, compared with the prior art, the network attachment method provided by the embodiment of the invention can not only reduce the signaling interaction between the UE and the MME, but also reduce the time consumed by the UE to attach the network; moreover, the technical scheme of the embodiment of the invention is simple and convenient to realize, convenient to popularize and wider in application range.

Fig. 4 is a schematic diagram of a UE in the embodiment of the present invention. As shown in fig. 4, the UE includes: a first transmitting unit 401, a first receiving unit 402, and an attaching unit 403; wherein,

the first sending unit 401 is configured to send an attach request message to an MME through an eNB; wherein, the attach request message carries at least two request messages;

the first receiving unit 402, configured to receive, by the eNB, an attach response message returned by the MME; wherein, the attach request message carries at least two response messages;

the attaching unit 403 is configured to perform network attachment to the MME through the eNB according to the attach response information when the attach response message is a response message that the attachment is successful.

Further, the attach request message includes: registration request information, identification request information, authentication request information, security mode request information, and PDN request information.

Both the first sending unit 401 and the first receiving unit 402 in the UE provided in the embodiment of the present invention may be implemented by a processor in the UE; of course, the implementation can also be realized through a specific logic circuit; in the course of a particular embodiment, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

According to the UE provided by the embodiment of the invention, the UE firstly sends an attachment request message to an MME through an eNB; wherein, the attach request message carries at least two request messages; then UE receives an MME return attachment response message through the eNB; wherein, the attach request message carries at least two response messages; and when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message. That is to say, in the technical solution of the present invention, the UE can perform network attachment only by sending a request message to the MME once. However, in the prior art, the UE needs to send multiple request messages to the MME for network attachment. Therefore, compared with the prior art, the UE provided by the embodiment of the invention not only can reduce the signaling interaction between the UE and the MME, but also can reduce the time consumed by the UE for attaching to the network; moreover, the technical scheme of the embodiment of the invention is simple and convenient to realize, convenient to popularize and wider in application range.

FIG. 5 is a schematic structural diagram of an MME according to an embodiment of the present invention. As shown in fig. 5, the MME includes: a second receiving unit 501 and a second transmitting unit 502; wherein,

the second receiving unit 501 is configured to receive, by an eNB, an attach request message sent by a UE; wherein, the attach request message carries at least two request messages;

the second sending unit 502 is configured to receive, by the eNB, an attach response message returned by the MME; wherein the attach request message carries at least two response messages.

Further, the MME further comprises:

an identity recognizing unit 503, configured to perform identity recognition on the UE according to the identity recognition request information in the attach request message;

the second sending unit 502 is further configured to, when the identity identification of the UE fails, return, by the MME, a first response message of attachment failure to the UE.

Further, the MME further comprises:

an authentication unit 504, configured to authenticate the UE according to the authentication request information in the attach request message;

the second sending unit 502 is further configured to, when the authentication of the authentication request information fails, return, to the UE, a second response message indicating that the attachment fails.

Further, the MME further comprises:

a matching unit 505, configured to match the UE according to the security mode request information in the attach request message;

the second sending unit 502 is configured to, when matching of the security mode request information fails, return, by the MME, a third response message of attachment failure to the UE.

Further, the MME further comprises:

a connecting unit 506, configured to connect to the UE according to the PDN request information in the attach request message;

the second sending unit 502 is further configured to, when connection to the PDN request information fails, return, by the MME, a fourth response message of attachment failure to the UE.

The second receiving unit 501, the second sending unit 502, the identity identifying unit 503, the authenticating unit 504, the matching unit 505 and the connecting unit 506 in the MME provided in the embodiment of the present invention may all be implemented by a processor in the MME; of course, the implementation can also be realized through a specific logic circuit; in the course of a particular embodiment, the processor may be a Central Processing Unit (CPU), a Microprocessor (MPU), a Digital Signal Processor (DSP), a Field Programmable Gate Array (FPGA), or the like.

In the MME provided by the embodiment of the invention, UE firstly sends an attachment request message to the MME through an eNB; wherein, the attach request message carries at least two request messages; then UE receives an MME return attachment response message through the eNB; wherein, the attach request message carries at least two response messages; and when the attachment response message is a response message of successful attachment, the UE performs network attachment to the MME through the eNB according to the attachment response message. That is to say, in the technical solution of the present invention, the UE can perform network attachment only by sending a request message to the MME once. However, in the prior art, the UE needs to send multiple request messages to the MME for network attachment. Therefore, compared with the prior art, the MME provided by the embodiment of the invention can not only reduce the signaling interaction between the UE and the MME, but also reduce the time consumed by the UE for attaching to the network; moreover, the technical scheme of the embodiment of the invention is simple and convenient to realize, convenient to popularize and wider in application range.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units; can be located in one place or distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a magnetic or optical disk, or other various media that can store program code.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method of network attachment, the method comprising:

user Equipment (UE) sends an attachment request message to a Mobile Management Entity (MME) through a base station eNB; wherein, the attach request message carries at least two request messages;

2. The method of claim 1, wherein the attach request message comprises: registration request information, identification request information, authentication request information, security mode request information and public data network PDN request information.

3. The method of claim 2, wherein the attach response message comprises: registration response information, identification response information, authentication response information, security mode response information, and PDN response information.

4. The method of claim 2, further comprising:

5. The method of claim 2, further comprising:

6. The method of claim 2, further comprising:

7. The method of claim 2, further comprising:

8. The method of claim 2, further comprising:

9. A user equipment, wherein the UE comprises: a first transmitting unit, a first receiving unit and an attaching unit; wherein,

10. The UE of claim 9, wherein the attach request message comprises: registration request information, identification request information, authentication request information, security mode request information and public data network PDN request information.

11. The UE of claim 10, wherein the attach request message comprises: registration request information, identification request information, authentication request information, security mode request information and public data network PDN request information.

12. An MME, wherein the MME comprises: a second receiving unit and a second transmitting unit; wherein,

13. The MME of claim 12, wherein the MME further comprises:

14. The MME of claim 12, wherein the MME further comprises:

15. The MME of claim 12, wherein the MME further comprises:

16. The MME of claim 12, wherein the MME further comprises: