摘要:
Artificial marble having a transparent amorphous pattern includes a base or matrix material portion and a transparent pattern portion. The pattern portion has a specific gravity or about 1.60 or more and is formed by hardening or curing a resin composition comprising a binder selected from halogenated urethane acrylates, halogenated epoxy acrylates and combinations thereof and an acrylic polymerizable monomer.
摘要:
An inter-cell interference coordination method coordinates interference between cells neighboring each other and belonging to different base stations by broadcasting interference coordination information between the neighboring cells through a broadcast channel. The terminal relays the interference coordination information between the neighboring cells over the air, so that the interference between the neighboring cells belonging to the different base stations is coordinated.
摘要:
Provided is a method of controlling a transmit power of a control channel transmitted from a pico base station. The pico base station may control the transmit power of the control channel based on a position of a macro terminal adjacent to the pico base station. When the macro terminal is positioned within a coverage of the pico base station, the pico base station enables the macro terminal to receive a control signal without interference from the macro base station by decreasing the transmit power of the control channel.
摘要:
Embodiments for performing an indoor navigation are disclosed. The location based service system includes: a plurality of access points installed in an indoor environment and configured to send Wi-Fi signals including access point identification information; a mobile terminal configured to receive a Wi-Fi signal from at least one of the access points and form a first Wi-Fi fingerprint based on the received Wi-Fi signal; and a navigation service server configured to construct a plurality of Wi-Fi radio maps based on a plurality of second Wi-Fi fingerprints acquired at locations of the indoor environment, select a Wi-Fi radio map for estimating a location of the mobile terminal among the plurality of Wi-Fi radio maps, estimate the location the mobile terminal by using a second Wi-Fi fingerprint corresponding to the first Wi-Fi fingerprint based on the selected Wi-Fi radio map, and form location information including the estimated location.