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Registered HANDOVER METHOD AND APPARATUS FOR MOBILE TERMINAL USING LOCATION INFORMATION IN HETEROGENEOUS SYSTEM NETWORK
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HANDOVER METHOD AND APPARATUS FOR MOBILE TERMINAL USING LOCATION INFORMATION IN HETEROGENEOUS SYSTEM NETWORK
- Inventors
- Won-Ik Kim, Lee Bongju, Song Jae Su, Yeon Seung Shin, Sangwoo Nam, Pyeong Jung Song
- Application No.
- 11295126 (2005.12.05)
- Publication No.
- 20060121914 (2006.06.08)
- Registration No.
- 7720487 (2010.05.18)
- Country
- UNITED STATES
- Project Code
- 04MM1100, Research on 4G Mobile Communications Technology, Hwang Seung Ku
- Abstract
- A handover method and apparatus for a mobile terminal using location information in a network of heterogeneous systems are provided. The handover method uses service area map information provided by a location service server in a mobile communication network in which at least one or more heterogeneous wireless network systems are connected through a predetermined network and, includes: receiving service area map information transmitted from the location service server; the mobile terminal determining whether or not the location of the mobile terminal is within the service area map; and if it is determined that the mobile terminal is within the service area map, the wireless terminal selecting an accessible wireless network system and then activating a unit for communicating with a base station of the selected wireless network system. According to the method, a battery consumption problem that occurs by activating all modems when a wireless terminal, which is connected to a predetermined mobile communication system in an environment where a plurality of heterogeneous systems are overlapping each other, is searching for candidate systems in order to perform handover to a heterogeneous network, can be solved. Also, a problem where finding a candidate system is time-consuming can be solved.