KR101090525B1 - Method for Hand-over to the Wireless Broadband Network and Mobile Communication Terminal Therefor - Google Patents
Method for Hand-over to the Wireless Broadband Network and Mobile Communication Terminal Therefor Download PDFInfo
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- KR101090525B1 KR101090525B1 KR1020040087813A KR20040087813A KR101090525B1 KR 101090525 B1 KR101090525 B1 KR 101090525B1 KR 1020040087813 A KR1020040087813 A KR 1020040087813A KR 20040087813 A KR20040087813 A KR 20040087813A KR 101090525 B1 KR101090525 B1 KR 101090525B1
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- wibro
- mobile communication
- modem unit
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Abstract
The present invention relates to a handover method for a WiBro network providing a handover service to a WiBro network using a T-mode mobile communication terminal, and a mobile communication terminal for the same. The first modem unit of the mobile communication terminal, It operates preferentially when searching for an initial access signal, and searches for a signal of a WiBro communication system, and when a connection with the WiBro communication system is not possible, transmits a network connection request signal to a second modem unit, and the mobile communication terminal is an asynchronous mobile communication system. Alternatively, when connected to the 1x EV-DO communication system, switch to the sleep mode,
When receiving the communication network connection request signal transmitted from the first modem unit, the second modem unit attempts to connect to the asynchronous mobile communication system or the 1x EV-DO communication system, and transmits the signal to the first modem unit when the connection is completed. By enabling the transition to the sleep mode, there is an advantage that the services provided based on the WiBro network can be utilized more efficiently.
WiBro communication system, multimode, mobile communication terminal
Description
1 is a view showing the configuration of a mobile communication network to which the present invention is applied;
2 is a view showing the configuration of a mobile communication terminal according to the present invention;
3 is a view for explaining a handover method to a WiBro network according to the present invention;
4 is a flowchart for explaining an embodiment of a handover method according to the present invention;
5 is a flowchart illustrating another embodiment of a handover method according to the present invention.
<Description of the symbols for the main parts of the drawings>
100: mobile communication terminal 110: antenna
120:
124: first wireless transceiver 126: a first modem unit
130: second module 134: second wireless transceiver
136: second modem unit 140: common module
200: asynchronous mobile communication system 210: node B
220: RNC 230: Asynchronous MSC
240: SGSN 250: GPRS
260: GGSN 300: WiBro communication system
310: RAS 320: ACR
400: 1x EV-DO Communication System 410: BTS
420: BSC / PCF 430: MSC
440: PDSN 500: IWU
The present invention relates to a handover method for a WiBro network and a mobile communication terminal therefor, and more particularly, to a handover method for a WiBro network providing a handover service to a WiBro network using a multi-mode mobile communication terminal. It relates to a mobile communication terminal for this purpose.
Mobile communication networks provide wireless Internet services through mobile communication terminals based on WAP (Wirless Application Protocol) or WIPI platforms, but due to various technical limitations such as small screen, low resolution and low data rate of mobile communication terminals Difficulties have arisen in providing Internet services that can be secured in a wired environment.
On the other hand, with the proliferation of notebook PCs and wireless LAN equipment, we are providing services to use the Internet wirelessly at home based on ADSL or public wireless LAN. However, wireless LAN is technically limited to a few tens of meters. Because it can be covered, many sites must be secured in order to be used as a public network, which requires a large investment cost.
In order to overcome the limitations of the wireless Internet service, a wireless broadband (WiBro) has been developed that enables high-speed Internet access even during stationary or slow travel.
Currently, various services are being developed and provided based on the mobile internet, and as the service area of the mobile internet system overlaps the service area of the asynchronous mobile communication system or the 1x EV-DO communication system, the mobile internet system and the asynchronous mobile communication system are provided. Or a handover between 1x EV-DO communication system is required.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and a handover method for a handover to a WiBro network using a mobile communication terminal which attempts to access the WiBro network preferentially, and a move therefor There is a technical problem in providing a communication terminal.
The present invention for achieving the above object is a first modem unit for processing a wireless section protocol with the WiBro communication system, and a second modem unit for processing a wireless section protocol with an asynchronous mobile communication system or 1x EV-DO communication system A mobile communication terminal for performing handover between the asynchronous mobile communication system and the WiBro communication system or the 1x EV-DO communication system.
The first modem unit preferentially operates when searching for an initial connection signal with a communication network, searches for a signal of the WiBro communication system, and transmits a network connection request signal to the second modem unit when the connection with the WiBro communication system is impossible. When the mobile communication terminal is connected to the asynchronous mobile communication system or the 1x EV-DO communication system, the mobile communication terminal switches to a sleep mode.
When the second modem unit receives a communication network connection request signal transmitted from the first modem unit, the second modem unit attempts to connect to the asynchronous mobile communication system or the 1x EV-DO communication system, and when the connection is completed, to the first modem unit. Transmit signal to enable sleep mode.
Another embodiment of the present invention provides a handover method to a WiBro network using a mobile communication terminal performing a handover between an asynchronous mobile communication system or a 1x EV-DO communication system and a WiBro communication system.
First searching for a signal of the WiBro communication system when the mobile communication terminal is powered on; As a result of the first step, if the connection with the WiBro communication system is possible, the connection is performed, and if the connection with the WiBro communication system is impossible, with the asynchronous mobile communication system or the 1x EV-DO communication system. A second step of attempting to connect; A third step of switching to a sleep mode when connected to the asynchronous mobile communication system or the 1x EV-DO communication system; A fourth step of searching for a signal of the WiBro communication system to determine whether a connection with the WiBro communication system is possible when a preset time arrives; As a result of the fourth step, when the connection with the WiBro communication system is possible, a fifth step of releasing the sleep mode and transmitting a connection request signal to the WiBro communication system.
In the present invention, the WiBro communication system (WiBro: Wireless Broadband) refers to a network capable of high-speed wireless Internet access even when stopped and moving by using a portable Internet terminal.
Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 is a diagram illustrating a configuration of a mobile communication network to which the present invention is applied.
The
The asynchronous
In addition, the WiBro
The asynchronous
Although not shown, the
1x EV-
Here, the packet
2 is a view showing the configuration of a mobile communication terminal according to the present invention.
As shown, the
The
The
In addition, the
The
In more detail, the
In addition, while the
When the
Subsequently, when one of the asynchronous
3 is a view for explaining a handover method to the WiBro network according to the present invention, a handover between the
3, A denotes a serviceable area of the asynchronous
While the
If the
4 is a flowchart illustrating an embodiment of a handover method according to the present invention.
The
When the
Thereafter, the
As a result of step S105, the connection between the
When the
Subsequently, when the
Thereafter, the
When the
When the predetermined time arrives as a result of step S121, the
As a result of step S123, when the connection with the
Subsequently, when the
In addition, when the
Thereafter, the
On the other hand, when the
On the other hand, when the preset time is not reached as a result of step S121, the
If the
5 is a flowchart illustrating another embodiment of a handover method according to the present invention.
The
The
Subsequently, the
As a result of step S203, when the received power level value is equal to or less than the reference value and the received power level value continues to be measured to be equal to or less than the reference value for a preset time, the
When the
Subsequently, when the
Thereafter, the
When the
When the predetermined time arrives as a result of step S219, the
As a result of step S221, when the connection with the
Subsequently, when the
In addition, when the
Thereafter, the
On the other hand, when the reception power level value of the
On the other hand, when the predetermined time has not come as a result of step S219, the
If the
As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.
As described above, the handover method for the WiBro network of the present invention and the mobile communication terminal for this purpose preferentially attempt to connect with the WiBro network providing high-speed data service when the mobile communication terminal is powered on. There is an advantage that the services provided based on this can be utilized more efficiently.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040087813A KR101090525B1 (en) | 2004-11-01 | 2004-11-01 | Method for Hand-over to the Wireless Broadband Network and Mobile Communication Terminal Therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040087813A KR101090525B1 (en) | 2004-11-01 | 2004-11-01 | Method for Hand-over to the Wireless Broadband Network and Mobile Communication Terminal Therefor |
Publications (2)
Publication Number | Publication Date |
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KR20060038693A KR20060038693A (en) | 2006-05-04 |
KR101090525B1 true KR101090525B1 (en) | 2011-12-08 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020040087813A KR101090525B1 (en) | 2004-11-01 | 2004-11-01 | Method for Hand-over to the Wireless Broadband Network and Mobile Communication Terminal Therefor |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101091037B1 (en) * | 2004-11-05 | 2011-12-09 | 에스케이텔레콤 주식회사 | Method for Hand-over Using the Neighbor BTS List and Mobile Communication System therefor |
KR100741376B1 (en) * | 2006-07-28 | 2007-07-20 | 지씨티 세미컨덕터 인코포레이티드 | Method for performing handoff from wibro (wimax) service to wireless lan service and terminal apparatus using the same |
KR100896679B1 (en) * | 2007-08-02 | 2009-05-14 | 에스케이 텔레콤주식회사 | Method and System for Handover Between WAVE 1 Equipment and WAVE 2 Equipment |
KR101422018B1 (en) * | 2007-11-08 | 2014-07-23 | 엘지전자 주식회사 | a mobile telecommunication device having a mobile wiMAX and a power saving method using the same |
KR100964614B1 (en) * | 2008-04-28 | 2010-06-21 | 주식회사 케이티 | Method for controlling handover signaling in hybrid indoor/outdoor wibro system and handover message configuration method in its |
KR100970448B1 (en) * | 2008-04-29 | 2010-07-16 | 주식회사 케이티 | Method for controlling indoor handover signaling in hybrid indoor/outdoor wibro system |
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2004
- 2004-11-01 KR KR1020040087813A patent/KR101090525B1/en not_active IP Right Cessation
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KR20060038693A (en) | 2006-05-04 |
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