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In today's mobile Internet business is booming, the user density to determine the width of the market, operators ability of the location and other business combination of, you can enhance the viscosity of the mobile Internet business, but also reflects the value of location-based services, the real win-win the market situation. Location-based services (LBS, Location-Based Service) through a wireless communication network (such as GSM, CDMA) or external positioning (eg GPS), to obtain the location information of mobile terminal users. It is the direction of the important applications of the geographic information system (GIS, Geographic Information System). The location information of mobile phone users by a certain technology, SMS, WAP, etc. Based on this, I to the user, communication systems, or other request to the user's location, institution or individual to provide positioning, navigation and other derivatives. With the further development of 3G networks and terminals, according to Frost & Sullivan, the integration of location-based services will be the rapid spread, the explosive growth of mobile value-added services market will usher in the next three years. Shown in Figure 1, 2011 our location-based services market size is expected to increase of 83%, the 2012 market will reach 11.5 billion yuan. From a global point of view, the development of mobile Internet, the popularity of smart phones and social networking sites popular location-based services to become one of the most developers were concerned about the API related applications also will continue to rich. At present, the location-based services are widely used in emergency, location tracking, navigation, local search, social entertainment, advertising, promotions, etc., shown in Figure 2. LGT is the first mobile operator to introduce mobile location-based services in Korea. 2002, first of LGT a launch gpsOne technology emergency services, emergency services in the context of that number of cases of abduction of children and abduction of women in Korea, favored by the users. In early 2004, South Korea LGT launched a phone called the "Aladdin" and press the shortcut key you can advance deposit good object through the mobile network to send the user the exact location in which, and at the same phone call. In recent years, hot Foursquare and other LBS services, more specifically, should be referred to as location-based social services (Location-Based Social the Networking the Service), is generalized LBS applications in the field of "social entertainment" branch. Location, the user can "sign to share with friends, and geographic location of the eat, drink Raiders, and synchronized to the social car cameras and car dvr networking sites such as Twitter, Facebook. South Korea SKT in 2002 officially launched the next generation of LBS services called "NATEGPS,. Since then launched the bus to inform the mobile security services, the i-Kids service. the i-Kids GPS technology and SK Telecom's mobile network to confirm the child's current location and activities of the path, as soon as the child's activities beyond the scope of the set, it will automatically send alarm SMS.
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