Abstract: The present invention is intended to provide a position-dependent information representation system which can allow persons other than evaluators to readily recognize at which positions the respective evaluators are evaluating information. Control device causes map/layout display means to display a map or a layout chart of a specified area in according to an instruction of the evaluator, and specifies an evaluation point specified by the evaluator in the display range of the map or the layout chart displayed according to an instruction of the evaluator. Information acquiring means acquires information data representing information of the evaluation point. Information representation section represents the information data.

Abstract: A wireless mobile station (1) includes: an acquisition unit (12a) acquiring an adjacent cell list, in a first wireless cell which is a communication area of a wireless base station (2) established a wireless link with the wireless mobile station, defining a second wireless cell adjacent to the first wireless cell; a search unit (13) searching wireless cells which is detectable in the first wireless cell, and measuring a wireless quality sensed by the wireless mobile station from a third wireless cell which is not included in the adjacent cell list among the detected wireless cells; and a determination unit (14) estimating a wireless quality sensed by the wireless mobile station from the third wireless cell on assumption that the third wireless cell is added to the adjacent cell list, and determining whether or not the third wireless cell is to be added to the adjacent cell list by using a result of the estimation.

Abstract: Electro-magnetic wave reachability between a wireless client and wireless access points including access points of wireless communication system components is judged for every wireless access point, useful states of wireless resources at the wireless access points are calculated for every wireless access point, and incoming and outgoing calls of a communication session are controlled or usability or vacant capacity of the wireless communication system is monitored in accordance with information including judged results of the electro-magnetic wave reachability and calculated results of the useful states of wireless resources.

Abstract: A wireless network connection supporting apparatus, a supporting system using the same, a method therefor and a program wherein a wireless LAN to be supported is connected by trial to enable the decoding of an encrypted packet and also enables a confirmation of the operation of the main system of a backend, thereby a connection support for a wider range of causes of troubles can be achieved. A wireless network connection supporting apparatus (100) supports a connection of a wireless communication terminal (30) to a wireless network (10). During a normal operation of the wireless network (10), the wireless network connection supporting apparatus (100) uses a test account, which can provide a correct connection, to perform a connection trial to the wireless network (10), analyzes a trail result of the connection trail, and outputs an operational instruction corresponding to the analysis result.

Abstract: Power of signal light injected to a Raman amplification medium is measured or estimated by calculation and ratio of the gain between forward pump light and backward pump light is controlled according to the result of the measurement or calculation. Wavelengths used in the forward pumping are optimally allocated.

Abstract: A commoditized bandwidth trading system comprises a seller's terminal, a buyer's terminal and a trading point. The seller's terminal transmits a seller's order indicating a plurality of bandwidth contract terms, at least one of the bandwidth contract terms containing a selectable range of characteristics, a trading point for receiving the seller's order and advertising the plurality of bandwidth contract terms of the received seller's order. The buyer's terminal transmits a buyer's response to the trading point in response to the advertised seller's order. If the trading point verifies the buyer's response, the buyer's terminal selects one of the characteristics of the advertised seller's order, and transmits a connection request indicating bandwidth contract terms. At least one of the contract terms contains the selected characteristic. According to the contract terms of the connection request, a bandwidth segment is connected at connecting points to a buyer's network.

Abstract: When Raman amplification is performed, the occurrence of lightwaves through FWM in a wavelength band of input signal light is suppressed, thereby avoiding deterioration of the signal quality. Allocation of lightwaves of the pumping light is controlled so that, wavelengths of lightwaves arising through a nonlinear effect of pumping lights generated by a pumping means or of pumping lights and input signal light, or both, are not within the wavelength band of the input signal light.

Abstract: Power of signal light injected to a Raman amplification medium is measured or estimated by calculation and ratio of the gain between forward pump light and backward pump light is controlled according to the result of the measurement or calculation. Wavelengths used in the forward pumping are optimally allocated.

Abstract: When Raman amplification is performed, the occurrence of lightwaves through FWM in a wavelength band of input signal light is suppressed, thereby avoiding deterioration of the signal quality. Allocation of lightwaves of the pumping light is controlled so that, wavelengths of lightwaves arising through a nonlinear effect of pumping lights generated by a pumping means or of pumping lights and input signal light, or both, are not within the wavelength band of the input signal light.