KR20150029847A - Device for generating tracking area list and method for generating tracking area using the same - Google Patents

Device for generating tracking area list and method for generating tracking area using the same Download PDF

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Publication number
KR20150029847A
KR20150029847A KR20130108736A KR20130108736A KR20150029847A KR 20150029847 A KR20150029847 A KR 20150029847A KR 20130108736 A KR20130108736 A KR 20130108736A KR 20130108736 A KR20130108736 A KR 20130108736A KR 20150029847 A KR20150029847 A KR 20150029847A
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KR
South Korea
Prior art keywords
tracking area
base station
list
tracking
area list
Prior art date
Application number
KR20130108736A
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Korean (ko)
Inventor
류필수
최우형
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주식회사 케이티
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Publication date
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Priority to KR20130108736A priority Critical patent/KR20150029847A/en
Publication of KR20150029847A publication Critical patent/KR20150029847A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

Abstract

According to the present invention, a method for automatically generating and managing a tracking-area list is performed by a tracking-area list generation apparatus and comprises: a step of receiving a message from a source base station; a step of searching for a tracking-area list assigned to the tracking area of a destination base station; a step of checking a location area assigned to the tracking area of the source base station; and a step of including the tracking area of the source base station in the tracking-area list assigned to the tracking area of the destination base station.

Description

TECHNICAL FIELD [0001] The present invention relates to a tracking area list generation apparatus and a tracking area list generation method using the same,

The present invention relates to a tracking area list generation apparatus and a tracking area list generation method using the same.

In the prior art, a restriction is imposed on a mobile subscriber in an LTE (Long Term Evolution) network to configure a tracking area list in consideration of a location area configured in a 3G network for voice incoming, The tracking area list could not be constructed, and the operator had to configure the tracking area list through network design and manual registration.

In addition, due to the configuration of the tracking area list which is not optimized in the prior art, the paging increases by the number of unnecessary tracking areas included in the tracking area list at the time of paging in the tracking area list, thereby increasing the load of the network. Also, the paging processing delay has occurred due to an increase in the number of paging processes of the base station (eNode-B, for example) constituting the tracking area, thereby causing the difficulty that the incoming quality is deteriorated.

The present invention proposes a tracking area list generation apparatus capable of automatically generating a tracking area list and a tracking area list generation method using the same.

A method of generating a tracking area list according to an embodiment of the present invention includes a step of automatically generating a tracking area list by a tracking area list generation device, a step of receiving a message from a source base station, The method comprising the steps of: searching a first tracking area list of the source base station, identifying a location area allocated to the tracking area of the source base station, And including a tracking area of the base station.

The step of confirming the location area may include determining whether the location area allocated to the tracking area of the source base station is the same as the location area allocated to the tracking area of the destination base station if the tracking area of the source base station is not included in the tracking area list And a step of confirming.

The step of including the tracking area may include: if the location area allocated to the tracking area of the source base station equals the location area allocated to the tracking area of the destination base station, the tracking area of the source base station is divided into a first tracking area list In the second step.

Wherein the step of searching the first tracking area list includes determining whether the first tracking area list includes a predetermined maximum number of tracking areas, And checking the location area allocated to the tracking area of the source base station and the location area allocated to the tracking area of the destination base station if the area list does not exceed the maximum number.

The first tracking area list may be formed so as to overlap with at least one second tracking area list adjacent to the first tracking area list.

The apparatus for generating a tracking area list according to an embodiment of the present invention includes a transmitter and receiver for transmitting a message to a source base station or a destination base station and receiving a response from the source base station or the destination base station, A determination unit for comparing the tracking area or the position area of the base station and determining whether to add the tracking area of the source base station to the tracking area list allocated to the tracking area of the destination base station, And generates a first tracking area list by adding it to the list.

The determination unit may determine whether the tracking area list includes a predetermined maximum number of tracking areas.

The determining unit may include a comparing unit for comparing whether a location area allocated to the tracking area of the source base station is the same as a location area allocated to the tracking area of the destination base station, The determination unit may determine that the tracking area of the source base station is included in the tracking area list of the destination base station if the same location area is allocated to the tracking area.

The list generation unit may form a tracking area of the at least one second tracking area list adjacent to the first tracking area list to overlap with each other.

According to the present invention, the tracking area list generation apparatus automatically generates a tracking area list composed of adjacent tracking areas, and as a result, the tracking area list is formed so as to overlap with the adjacent tracking area list, The paging processing load of the MME system is reduced and the paging reception number of the base station is reduced, thereby reducing the load on the base station and improving the receiving success rate.

In addition, it provides an environment in which the load can be reduced by the location registration and distribution processing of the MME system due to the location registration of the mobile terminal.

1 is a block diagram schematically illustrating an apparatus for generating a tracking area list according to an embodiment of the present invention.
2 is a flowchart illustrating a method of generating a tracking area list according to an exemplary embodiment of the present invention.
3 is a flowchart illustrating a method of generating a tracking area list according to another embodiment of the present invention.
FIG. 4 is a diagram illustrating a tracking area list according to an embodiment of the present invention.
5 is a diagram illustrating a tracking area list formed in an overlapping manner according to an embodiment of the present invention.
6 is a flowchart illustrating a process of transmitting and receiving a message to automatically generate a tracking area list in a mobile communication network according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Throughout the specification, a terminal is referred to as a mobile station (MS), a mobile terminal (MT), a subscriber station (SS), a portable subscriber station (PSS) terminal, an AT, a user equipment (UE), or the like, and may include all or some of functions of a terminal, MT, SS, PSS, AT, UE,

In addition, a base station (BS) includes a node B, an evolved node B, an eNodeB, an access point (AP), a radio access station (RAS) a base transceiver station (BTS), a mobile multihop relay (MMR) -BS, or the like, and may include all or some of functions of a Node B, an eNodeB, an AP, a RAS, a BTS, and an MMR-BS.

A tracking area list generation apparatus and a tracking area list generation method using the same according to an embodiment of the present invention will now be described in detail with reference to FIGS. 1 to 6. FIG.

1 is a block diagram schematically illustrating an apparatus for generating a tracking area list according to an embodiment of the present invention. At this time, the tracking area list generating apparatus 100 only shows a schematic configuration necessary for the explanation according to the embodiment of the present invention, and is not limited to this configuration.

Referring to FIG. 1, a tracking area list generation apparatus 100 according to an embodiment of the present invention includes a tracking area list (Tracking Area List) 110 indicating a tracking area to which a mobile terminal belongs in an LTE (Long Term Evolution) area list, and includes a transmission / reception unit 110, a search unit 120, a determination unit 130, a list generation unit 140, and a control unit 150.

The transceiving unit 110 receives a message requesting handover related information from the base station, and transmits a response to the message. Here, the base station includes a source base station and a destination base station. The source base station is a base station to which a current user's mobile terminal belongs, and the destination base station is a base station to which a mobile station will hand-over to a source base station and a neighboring base station.

The searching unit 120 analyzes a message of the base stations to identify a tracking area or a location area for the base stations and searches a list of tracking areas allocated to the tracking area of the destination base station. Here, the location area may be location information for the heterogeneous network that is different from the communication network for the tracking area. For example, according to one embodiment of the present invention, the location area is information allocated to provide voice service to the mobile terminal in the 3G network, and the tracking area may be information allocated in the LTE network.

The determination unit 130 compares the tracking area or the location area of the source base station and the destination base station and determines whether to add the tracking area of the source base station to the tracking area list allocated with the tracking area of the destination base station. The determination unit 130 may determine whether the tracking region list to which the tracking region of the destination base station is allocated includes a predetermined maximum number of tracking regions and determine whether to add the tracking region list to the tracking region list.

At this time, if the tracking area list to which the tracking area of the destination base station is allocated exceeds the preset maximum number, the determination unit 130 may not add the tracking area of the source base station to the tracking area list.

The determination unit 130 compares the location area allocated to the tracking area of the source base station with the location area allocated to the tracking area of the destination base station and determines whether to add the tracking area of the source base station to the tracking area list .

The determination unit 130 includes a comparison unit 132 and a determination unit 134 according to an embodiment of the present invention.

The comparison unit 132 compares the location area allocated to the tracking area of the source base station with the location area allocated to the tracking area of the destination base station.

If the location area allocated to the tracking area of the source base station is the same as the location area allocated to the tracking area of the destination base station, the determination part 134 determines to include the tracking area of the source base station in the tracking area list of the destination base station.

The list generation unit 140 generates a new tracking area list including the tracking area of the destination base station if the tracking area list of the destination tracking area does not exist according to the result of the search unit 120, Update.

The control unit 150 controls the operations of the transceiver unit 110, the search unit 120, the determination unit 130 and the list generation unit 140 to be performed smoothly. And updates the destination tracking area list to include the tracking area of the source base station through the list generating unit 140

The tracking area list generation apparatus 100 may be included in a Mobility Management Entity (MME) in a mobile communication system according to an embodiment of the present invention. Here, the MME manages the mobility of the mobile terminal by performing paging, location registration and authentication.

More specifically, location information of a mobile terminal is managed by an MME for an incoming call from the LTE network to the mobile terminal. The location information includes a tracking area code indicating a tracking area to which the mobile subscriber belongs, .

The mobile terminal receives the tracking area code of the base station information radiated from the mobile base station, detects that the mobile terminal has changed its location if it is different from the tracking areas constituting the tracking area list received from the MME when registering the previous location, And provides the tracking area code of the changed position to the MME.

If the location registration is normally performed, the mobile terminal is provided with a tracking area list of the changed location (tracking area code) from the MME, and the tracking area list used by the MME is provided by the tracking area list generating device 100 .

In order to provide the 3G mobile network voice service to the mobile subscriber of the LTE network through the 3G network, the tracking area list generation apparatus 100 generates a tracking area list 100 composed of tracking areas having the same location area information, Automatically configures and manages them.

 Therefore, the tracking area list generation apparatus 100 according to an embodiment of the present invention provides an environment in which a load due to location registration of a mobile terminal is reduced, and a load due to location registration is distributed.

Now, the process of generating the tracking area list by the tracking area list generating apparatus 100 will be described in detail with reference to FIGS. 2 and 3. FIG.

2 is a flowchart illustrating a method of generating a tracking area list according to an exemplary embodiment of the present invention. At this time, the following flowchart will be described using the same reference numerals in conjunction with the configuration of FIG.

2, the tracking area list generation apparatus 100 collects the tracking area of the source base station and the tracking area of the destination base station in the message received through the transmission unit 110 in the control unit 150 (S100) (Step S102) through the search area 120 to the tracking area list assigned to the tracking area of the destination base station.

If there is no tracking area list as a result of searching through the searching unit 120, the controller 150 generates a new tracking area list through the list generating unit 140 (S102).

 The determining unit 130 compares the location areas allocated to the tracking areas of the source base station and the destination base station through the comparing unit 132 in step S104, It is determined whether to include the tracking area of the source base station in the area list (S106)

Finally, according to the result of the determination unit 130, the control unit 150 updates the corresponding destination tracking area list through the list generating unit 140 (S108)

3 is a flowchart illustrating a method of generating a tracking area list according to another embodiment of the present invention. At this time, the following flowchart will be described using the same reference numerals in conjunction with the configuration of FIG.

Referring to FIG. 3, the tracking area list generation apparatus 100 receives a message from the source base station through the transmission / reception number 110 (S200).

The tracking area list generation apparatus 100 collects tracking area information of the source base station and tracking area information of the destination base station in the message received through the controller 150 (S202).

At this time, the tracking area list generation apparatus 100 searches the tracking area list allocated to the tracking area of the destination base station through the search unit 120 (S204).

If there is no corresponding tracking area list as a result of the search, the list generating unit 140 generates a tracking area list (S206, S208).

If there is a list of the tracking area list, the tracking area list generating device 100 determines whether the tracking area of the source base station is a tracking area allocated to the tracking area of the destination base station, It is determined whether to be included in the list (S210). If the maximum number of tracking areas is exceeded, the tracking area list generation device 100 does not include the tracking area of the source base station in the tracking area list (S218).

In addition, the tracking area list generation apparatus 100 confirms a location area allocated to the tracking area of the destination base station through the determination unit 130 (S212), and updates the location area allocated to the tracking area of the source base station It is checked whether the location areas allocated to the tracking area of the destination base station are identical (S214).

If the location area allocated to the tracking area of the source base station is the same as the location area allocated to the tracking area of the destination base station, the tracking area list generating device 100 generates a tracking area list The tracking area of the source base station is included (S216).

However, if the location area allocated to the tracking area of the source base station is not the same as the location area allocated to the tracking area of the destination base station, the tracking area list generating device 100 does not include the tracking area of the source base station in the tracking area list The procedure is terminated (S218).

FIG. 4 is a diagram illustrating a tracking area list according to an embodiment of the present invention.

4, when the mobile terminal moves from the tracking area TA1 list 300a of the source base station to the tracking area TA3 of the adjacent destination base station, the tracking area list TA3 of the destination base station 400a are set. If the tracking area list does not exist in the tracking area TA3 of the destination base station, the tracking area list generating device 100 generates the tracking area list 400a in the tracking area TA3.

In this case, the tracking area list generation apparatus 100 determines whether to include the tracking area TA1 of the source base station in the tracking area TA3 list 400a. At this time, the tracking area list generation apparatus 100 determines whether or not the maximum number of coverage area, the location area of the source base station, and the location area of the destination base station are the same.

The tracking area list generation apparatus 100 does not exceed the maximum number of acceptable tracking areas and if the source base station and the destination base station have the same location area, the tracking area list generating unit 100 adds the tracking area TA1 of the source base station to the tracking area tracking area list 400a, And updates the destination tracking area list 400a.

5 is a diagram illustrating a tracking area list formed in an overlapping manner according to an embodiment of the present invention.

Referring to FIG. 5, as a result of the tracking area list formed by the tracking area list generation apparatus 100, when the terminal moves from the currently located TA1 (tracking area list 100a) to the tracking area TA3, Lt; RTI ID = 0.0 > 200a < / RTI > The tracking area list 200a includes a plurality of adjacent tracking areas TA2 / TA3 / TA4 / TA5 / TA6 / TA7 / TA8 as shown in FIG.

The location registration does not occur when the terminal moves within the tracking area list 200a out of the overlapped estimated area lists. However, when the terminal leaves the tracking area list 200a, the location registration occurs in the tracking area that is first contacted with the leaving area (TA8-> TA14), the terminal receives the new tracking area list 300a. As described above, the tracking area list generation apparatus 100 forms a tracking area list (TA8 is accommodated in 200a / 200b / 300a) for each tracking area by the operation of the present invention.

Accordingly, the tracking area list generation apparatus 100 according to an exemplary embodiment of the present invention collects tracking area related information when a mobile terminal moves and performs handover, generates a tracking area list that is overlapped, It is possible to reduce the load due to the location registration of the mobile terminal caused by moving to the area adjacent to the tracking area list area and to provide an environment in which the load due to the location registration can be distributed.

Hereinafter, a process of transmitting and receiving a message in order to automatically generate a tracking area list in the mobile communication network will be described in detail with reference to FIG.

6 is a flowchart illustrating a process of transmitting and receiving a message to automatically generate a tracking area list in a mobile communication network according to an embodiment of the present invention. At this time, the following flowchart will be described using the same reference numerals in conjunction with the configuration of FIG.

6, when the mobile terminal 500 located in the source base station 300 moves to the destination base station 400, the mobile terminal 500 measures the radio of the destination base station 400, To the destination base station 400 (S300, S302, and S304).

At this time, when the mobile terminal 500 moves from the current source base station 300 to the adjacent destination base station 400, the mobile terminal 500 provides the source base station 300 with the eNode ID and the tracking area information of the destination base station 400 for handover .

The source base station 300 collects information of the destination base station 400 through the MME to construct a neighbor based on the received information. At this time, according to an embodiment of the present invention, the SON (Self Organized Network ) Function, ANR (Automatic Neighbor Relation), can be utilized.

The source base station 300 transmits an eNB Configuration Transfer message to the tracking area list generating apparatus 100 for neighboring configuration of the destination base station 400 and requests IP information of the destination base station 400 in step S306. At this time, the message includes eNode-B ID and tracking information of the source base station 300 and the destination base station 400.

The tracking area list generation apparatus 100 transmits an MME Configuration Transfer message requesting the IP address of the destination base station 400 to the destination base station 400 using the received information of the message and transmits the MME Configuration Transfer message to the destination base station 400 And receives a response thereto (S308, S310).

If there is no tracking area list assigned to the tracking area of the destination base station 400, the tracking area list generating device 100 generates a tracking area list and then adds the tracking area of the source base station 300 to the tracking area list , And updates the tracking area list (S312, S314).

The tracking area list generation apparatus 100 transmits a response of the MME Configuration Transfer message received from the destination base station 400 to the source base station 300 (S316).

As described above, the tracking area list generation apparatus 100 according to an embodiment of the present invention automatically generates a tracking area list for an adjacent tracking area, thereby optimizing the number of tracking areas included in the tracking area list, Thereby reducing the load on the MME by the list paging and reducing the paging load of the base station, thereby enhancing the reception success rate.

The tracking area list generation apparatus 100 also provides an environment for reducing the location registration load of the MME by load distribution processing by location registration of the mobile terminal by forming the tracking area list so as to overlap with the adjacent tracking area list.

Also, the tracking area list generating apparatus 100 automatically configures the tracking area list to be automatically included in the tracking areas of adjacent base stations, without the network design and manual registration of the operator, thereby increasing the operating efficiency of the mobile communication system.

The embodiments of the present invention described above are not implemented only by the apparatus and method, but may be implemented through a program for realizing the function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Such a recording medium can be executed not only on a server but also on a user terminal.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

110: Transmitting / receiving unit 120:
130: Determination unit 140:
150:

Claims (9)

In a method for the tracking area list generation apparatus to automatically generate a tracking area list,
Receiving a message from a source base station,
Searching a first tracking area list in which a tracking area of a destination base station is allocated,
Identifying a location area allocated to the tracking area of the source base station, and
Including a tracking area of the source base station in the first tracking area list to which the tracking area of the destination base station is allocated
And generating a tracking area list. The method of claim 1,
Wherein identifying the location area comprises:
Determining whether the location area allocated to the tracking area of the source base station is the same as the location area allocated to the tracking area of the destination base station if the tracking area list does not include the tracking area of the source base station
And generating a tracking area list. 3. The method of claim 2,
The step of including the tracking area comprises:
If the location area allocated to the tracking area of the source base station equals the location area allocated to the tracking area of the destination base station, including the tracking area of the source base station in the first tracking area list of the destination base station
And generating a tracking area list. The method of claim 1,
Wherein the searching of the first tracking area list comprises:
Determining whether the first tracking area list includes a predetermined maximum number of tracking areas,
Wherein identifying the location area comprises:
Checking a location area allocated to a tracking area of the source base station and a location area allocated to the tracking area of the destination base station if the first tracking area list does not exceed the maximum number; Way. The method of claim 1,
Wherein the first tracking area list comprises:
Wherein the at least one second tracking area list is overlapped with the at least one second tracking area list. A transmitting / receiving unit for transmitting a message to a source base station or a destination base station, and receiving a response from the source base station or the destination base station;
A judging unit for analyzing the message to compare a tracking area or a location area of the source base station and the destination base station and determining whether to add the tracking area of the source base station to the tracking area list allocated to the tracking area of the destination base station, And
A list generation unit for generating a first tracking area list by adding a tracking area of the source base station to the tracking area list,
And generating a tracking area list. The method of claim 6,
Wherein,
Wherein the tracking area list generation unit determines whether the tracking area list includes a predetermined maximum number of tracking areas. The method of claim 6,
Wherein,
A comparison unit for comparing whether a location area allocated to the tracking area of the source base station is the same as a location area allocated to the tracking area of the destination base station,
Determining whether to include the tracking area of the source base station in the tracking area list of the destination base station if the location area allocated to the tracking area of the source base station is the same as the location area allocated to the tracking area of the destination base station,
And generating a tracking area list. The method of claim 6,
Wherein the list generating unit comprises:
Wherein the first tracking area list and the at least one second tracking area list adjacent to the first tracking area list are overlapped.
KR20130108736A 2013-09-10 2013-09-10 Device for generating tracking area list and method for generating tracking area using the same KR20150029847A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018128307A1 (en) * 2017-01-05 2018-07-12 주식회사 케이티 Method for providing mobile communication-based internet telephone service and mobile communication system therefor
KR20230034717A (en) * 2021-09-03 2023-03-10 주식회사 엘지유플러스 Server control method and server

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018128307A1 (en) * 2017-01-05 2018-07-12 주식회사 케이티 Method for providing mobile communication-based internet telephone service and mobile communication system therefor
KR20230034717A (en) * 2021-09-03 2023-03-10 주식회사 엘지유플러스 Server control method and server

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