摘要:
An object is to provide a cell phone capable of achieving improvement in efficiency of communication and improvement in user's operability on the occasion of providing location information. A cell phone 10 has a data transmitter 101 for transmitting user data to a content delivery server 30, using a user channel, a location request part 102 for transmitting request information to request calculation of location information about the cell phone 10, to a GPS server 40 in accordance with the transmission of the user data, using a control channel, a location acquiring part 103 for acquiring the location information calculated based on the request information by the GPS server 40, using the control channel, and a location transmitter 105 for transmitting the location information to the content delivery server 30, using the control channel.
摘要:
An object is to provide a cell phone capable of achieving improvement in efficiency of communication and improvement in user's operability on the occasion of providing location information. A cell phone 10 has a data transmitter 101 for transmitting user data to a content delivery server 30, using a user channel, a location request part 102 for transmitting request information to request calculation of location information about the cell phone 10, to a GPS server 40 in accordance with the transmission of the user data, using a control channel, a location acquiring part 103 for acquiring the location information calculated based on the request information by the GPS server 40, using the control channel, and a location transmitter 105 for transmitting the location information to the content delivery server 30, using the control channel.
摘要:
A positional information service server selects a measuring system most suitable for measuring quality conditions received from a terminal requesting measurement when able to measure position of a designated mobile unit to be measured by a plurality of measuring systems. The positional information service server acquires the positional information of the mobile unit based on the selected measuring system, and transmits it to the terminal designated as the one to be notified.
摘要:
An object of the present invention is to provide a cell phone capable of using base station position information and GPS position information more appropriately. This cell phone 10 is provided with a first position acquirer 12 for acquiring first position information of cell phone 10 calculated using a position of at least one base station under which the cell phone 10 is placed, a second position acquirer 13 for acquiring second position information of cell phone 10, using the global positioning system, an accuracy comparator 14 for making a comparison between respective accuracies of the first position information and the second position information, and a position information using part 15 for selectively using the first position information or the second position information in accordance with the result of the comparison; the position information using part 15 first uses the first position information, irrespective of the result of the comparison made by the accuracy comparator 14, and thereafter uses position information with higher accuracy out of the first position information and the second position information in accordance with the result of the comparison made by the accuracy comparator 14.