KR101930938B1 - Mobile management apparatus and method for servicing time information using the same - Google Patents

Abstract

The present invention relates to a mobility management apparatus capable of transmitting a message including time information in a network access procedure in an LTE network and a method of providing time information using the mobility management apparatus.
To this end, the mobility management apparatus according to an embodiment of the present invention is a mobility management apparatus for generating a session upon receipt of an access request message from a user terminal through a base station apparatus, the mobility management apparatus comprising: And a communication unit for transmitting the generated message to the user terminal as the first downlink data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mobility management apparatus and a time information providing method using the same. [0002] MOBILE MANAGEMENT APPARATUS AND METHOD FOR TIME INFORMATION USING THE SAME [

The present invention relates to providing time information in an LTE network, and more particularly, to a mobility management apparatus capable of providing time information in a network access procedure in an LTE network and a time information providing method using the same.

Generally, in the synchronous network, since the time of the exchange period is matched with that of the mobile communication terminal (UE), the synchronous mobile communication terminal receives the broadcasting signal including the time information from the exchange and maintains the correct time.

On the other hand, in an asynchronous network such as Global System for Mobile Communication (GSM), General Packet Radio Service (GPRS), Universal Mobile Telecommunication System (UMTS) and Wideband Code Division Multiple Access (WCDMA) A standard for separately providing time information to the mobile communication terminal is determined. These specifications are specified in 3GPP (3rd Generation Partnership Project) standard TS 24.008. According to this specification, the time information is transmitted to the mobile communication terminal through a NAS (Non Access Stratum) message. That is, GMM information including time information may be included in the NAS message and transmitted to the mobile communication terminal. The NAS message may be provided to the mobile communication terminal when the mobile communication terminal is connected to the exchange.

On the other hand, as the spread of mobile devices such as smart phones and tablet PCs has increased, the data transmission amount that has increased explosively can no longer be covered by the existing mobile communication method, resulting in the interruption of the smart phone call or the inability to access the wireless Internet . For this reason, in the domestic and overseas mobile communication market, 3GPP communication technology with improved data transmission rate is being developed.

In 3GPP Release 8, a Network Architecture called Evolved Packet Core (EPC) is described as one of mobile communication systems for meeting the above-mentioned requirements. EPC is a set of network nodes for 3GPP LTE (Long Term Evolution) system. The EPC evolves the core network of the existing 3GPP system architecture to support Evolved-UMTS Terrestrial Radio Access Network (E-UTRAN), which is an evolved RAN, And has an efficient network structure that simplifies the network node.

However, in this LTE system, since the 'Attach accept message' for connection completion is transmitted only to the base station and is not transmitted to the mobile communication terminal, there is no way for the exchange in the LTE network to transmit the time information to the mobile communication terminal.

Korean Patent Application Publication No. 10-2010-0019267, published on Feb. 18, 2010, entitled " Asynchronous Mobile Communication Terminal and Its Time Setting Method ", the location information is received from the asynchronous network, And setting the current time of the terminal by receiving the time information from the terminal.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide a mobility management apparatus capable of transmitting a message including time information in a network access procedure in an LTE network and a time information providing method using the same.

Another aspect of the present invention is to provide a mobility management apparatus capable of transmitting a message including time information to a user terminal after a predetermined time elapses from driving of a timer in a network access procedure in an LTE network, and a time information providing method using the same.

According to an aspect of the present invention, there is provided a mobility management apparatus for performing a network connection procedure of a user terminal through a base station apparatus, the mobility management apparatus comprising: a message generation unit for generating a message including local time information when the network connection procedure is completed; And transmitting the message to the user terminal through the base station apparatus as downlink data.

According to another aspect of the present invention, there is provided a time information providing method performed by a mobility management apparatus, the method comprising: performing a network connection procedure of a user terminal through a base station apparatus; And transmitting the generated message to the user terminal through the base station apparatus as downlink data.

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The present invention can provide accurate time information to a user using an LTE system by transmitting a message including time information during a network connection procedure between a user terminal and a mobility management entity to a user terminal.

1 is a network configuration diagram showing an LTE system applied to an embodiment of the present invention,
2 is a block diagram illustrating an internal configuration of a mobility management apparatus for providing time information according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a process of providing time information in a mobility management entity according to an embodiment of the present invention;
4 is a flowchart illustrating a process of providing time information in a mobility management entity according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

Hereinafter, an apparatus and method for transmitting time information to a user-side terminal in an LTE network according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a network configuration diagram illustrating an LTE system applied to an embodiment of the present invention.

The LTE system is a mobile communication system evolved in the UMTS system, and a standard has been established in the 3rd Generation Partnership Project (3GPP), an international standardization organization. As shown in FIG. 1, the structure can be roughly divided into an evolved UMTS Terrestrial Radio Access Network (E-UTRAN) and a core network (EPC: Evolved Packet Core). The wireless access network includes a user equipment (UE) 100 and an evolved NodeB (eNodeB) 102.

The user terminal 100 may communicate with network nodes or other terminals constituting the core network through a radio access network.

The user terminal 100 also includes a transceiver for transmitting and receiving radio signals to and from the processor and the radio access network (RAN), which are signal generation and processing means. Although not shown in the drawing, the user terminal 100 may include a memory for storing user data or programs, a display unit for displaying various information or data of the terminal, a user interface such as a keypad or a touch screen, As shown in FIG.

The eNodeB 102 is a base station device that supports next generation technologies and services such as LTE. The eNodeB 102 is a base station device supporting radio frequency (RF) transmission and signal strength and quality of a transmission signal, baseband signal processing, and channel card resource management Function can be performed.

The eNodeB 102 receives a connection request message (Attach Request) from the user terminal 100 and performs a predetermined procedure with the mobility management entity (MME) 106 to perform Attach Complete, To the mobility management entity (106).

A home subscriber management server (HSS / HLR) 104 is a network node including a data base including subscriber information for a wireless communication system, Information, authentication and location-related data can be stored.

A Mobility Management Entity (MME) 106 is a node for managing subscriber information and mobility of the user terminal 100 and is responsible for session management, idle subscriber management, paging, do. That is, the mobility management entity 106 sends a control signal when there is a combination request from the user terminal 100 or another network node, for example, the PDN-GW 110 or the S-GW 108, And performs functions such as configuration of an EPS bearer (Evolved Packet System bearer) or IP tunnel, mobility management, and the like .

In addition, the mobility management entity 106 according to the embodiment of the present invention transmits the first downlink data including time information to the user terminal 100 upon receipt of a connection completion message (Attach Complete) from the eNodeB 102 , And may provide time information to the user terminal 100.

The mobility management entity 106 receives the connection request message from the eNodeB 102 and transmits the initial context setup request message or the connection request message to the mobility management entity 106 after a predetermined time elapses after receiving the initial context setup request message, And may transmit the first downlink data including the time information to the user terminal 100.

In the embodiment of the present invention, the first downlink data transmitted from the mobility management entity 106 may include information as shown in Table 1 below.

2, the mobility management entity 106 includes a message generation unit 200, a communication unit 202, a timer driving unit 204, and a timer 206, for transmitting the information shown in Table 1 above. And the like.

The message generator 200 may generate a message (including a time information) including the information shown in Table 1 when the connection request message is received from the eNodeB 102 or the operation of the timer 206 is terminated .

The communication unit 202 may transmit the message generated by the message generating unit 200 as the first downlink data to the user terminal 100 through the eNodeB 102. [

The timer driver 204 may activate the timer 206 after the connection request message is received or the first context setup request message is sent to the eNodeB 102 or the session creation is complete. That is, the timer driver 204 transmits a request message for creating a session to the serving gateway 108 in the core network, and when the response message is received (when the session creation is completed), the timer driver 204 transmits the eNodeB 102, or may trigger a timer 206 after sending an initial context setup request message to the eNodeB 102 upon receipt of a response message.

The predetermined time is set in the timer 206, and a predetermined control signal may be generated and provided to the message generator 200 when a preset time has elapsed. That is, the timer 206 may be driven by the timer driver 204 and may provide a predetermined control signal to the message generator 200 when a predetermined time has elapsed. Accordingly, the message generator 200 can generate a message including time information.

A Serving Gateway (S-GW) 108 is a session control and user plane node for processing payload traffic according to a set session, -U interface and supports inter-LTE / 3GPP handover, sets up a packet data network gateway (PDN-GW) 110 and an EPS bearer, and performs tunneling And can transmit a PDU (Packet Data Unit).

The PDN-GW 110 is a session control and user plane for assigning an IP of the user terminal 100 and interworking with an external Internet network and a Non-3GPP network. The PDN-GW 110 includes an S-GW 108, (Routing) information, and has tunneling and IP routing functions. It also delivers the PDU to the S-GW 108 and the external network.

A home subscriber management server (HSS / HLR) 104 is a network node including a data base including subscriber information on a wireless communication system, Information, authentication and location-related data are stored.

The Policy & Charging Rule Function (PCRF) 112 provides a dynamic QoS and a charging rule according to a service data flow to perform a communication policy and a charging process in the communication network.

3 is a flowchart illustrating a process of providing time information in an LTE system according to an embodiment of the present invention.

3, when the user terminal (UE) 100 of the radio access network is turned on or connected to the mobility management entity (MME) 106 via the eNodeB 102, When transmitting an attach message (S200), the user terminal 100 performs a procedure such as a network connection procedure according to TS 23.401 between the mobility management entities 106, such as authentication, encryption option, (S302).

Accordingly, the mobility management entity 106 transmits a session creation request message for creating a session to the serving gateway (S-GW) 108, and receives a response message from the serving gateway 108 (S304, S306) .

Thereafter, the mobility management entity 106 generates an initial context setup request message according to the network connection procedure and transmits the initial context setup request message to the eNodeB 102 (S308), and the eNodeB 102 transmits a signaling connection with the user terminal 100 After the RRC connection procedure is performed (S310), a response message according to the initial context setup request message is transmitted to the mobility management entity (S312).

Then, the eNodeB 102 transmits a connection completion message to the mobility management entity 106 (S314). After the mobility management entity 106 generates a message as shown in Table 1, And transmits it as link data to the user terminal 100 (S316). These messages include local time zones.

As described above, when the network connection procedure between the user terminal 100 and the mobility management entity 106 is completed, the mobility management entity 106 transmits a message including time information to the user terminal 100, It is possible to provide accurate time information to a user using the LTE system.

Meanwhile, in the embodiment of the present invention, a message is transmitted at the time when the network connection procedure is completed, but a message including time information may be transmitted while the network connection procedure is being performed. This will be described with reference to FIG.

4 is a flowchart illustrating a process of providing time information according to another embodiment of the present invention.

As shown in FIG. 4, when the user terminal (UE) 100 of the radio access network is turned on or connected to the mobility management entity (MME) 106 via the eNodeB 102 due to the base station change due to movement, When transmitting an attach message (S400), the user terminal 100 performs a procedure such as a network connection procedure according to TS 23.401 between the mobility management entities 106, such as authentication, encryption option, (S402).

Accordingly, the mobility management entity 106 transmits a session creation request message for creating a session to the serving gateway (S-GW) 108 and receives a response message from the serving gateway 108 (S404 and S406) .

When the session creation is completed, the mobility management entity 106 transmits an initial context setup request message to the eNodeB 102, which is a base station device, according to the network connection procedure (S408) 206 (S410).

When the timer 206 is activated, that is, when a preset time has elapsed (S412), the message generating unit 200 of the mobility management entity 106 transmits a message including time information, that is, (S414), and transmits it to the user terminal 100 as the first downlink data (S416). Accordingly, the user terminal 100 sets the current time using the time information included in the message.

According to another embodiment of the present invention, a message including time information is transmitted to the user terminal 100 through driving of the timer 206 during a network connection procedure between the user terminal 100 and the mobility management entity 106 It is possible to provide accurate time information to a user using the LTE system.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should not be limited by the described embodiments but should be defined by the appended claims.

The present invention provides a technique for setting the current time in the LTE network by receiving time information from the mobility management entity of the connected LTE network even when a user of the terminal using the LTE system accesses from the LTE network not providing time information Can be used.

100: user terminal 102: eNodeB
104: HSS / HLR 106: Mobility management entity
108: S-GW 110: PDN-GW
112: PCRF

Claims (7)

delete A mobility management apparatus for performing a network connection procedure of a user terminal through a base station apparatus,
A message generator for generating a message including local time information when the network connection procedure is completed,
And a communication unit for transmitting the generated message as downlink data to the user terminal through the base station apparatus,
After the communication unit receives the connection completion message from the base station apparatus, the message generation unit generates a message after a predetermined time has elapsed after the session for traffic processing is generated or after an initial context setup request message is transmitted to the base station apparatus And generates the message at any time after the predetermined time has elapsed
Mobility management device.
delete delete delete A time information providing method performed by a mobility management apparatus,
Performing a network connection procedure of a user terminal through a base station apparatus,
After completing the network connection procedure, generating a message including local time information,
And transmitting the generated message as downlink data to the user terminal through the base station apparatus,
The message including the local time information may be transmitted after the mobility management apparatus receives the connection completion message from the base station apparatus after a predetermined time has elapsed since the session for traffic processing is generated or after an initial context setup request message Generated at any one of a predetermined time after the transmission to the base station apparatus
Method of providing time information.
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