摘要:
A communication system (1) includes a mobile communication network (2); a fixed communication network (3) connected to the mobile communication network (2); and a plurality of radio base stations capable of communicating with a mobile terminal (100) by radio communication. The radio base stations include a first base station (41, 42) connected to the mobile communication network (2); and second base stations (51, 52) connected to the fixed communication network (3) through wire communication lines (61, 62). A communication connection using a predetermined interface is established between one of the second base stations (51) and one of neighboring base stations (the first base station (42) and another one of the second base stations (52)) located in the neighborhood of the one of the second base stations (51).
摘要:
A communication system (1) includes a mobile communication network (2); a fixed communication network (3) connected to the mobile communication network (2); and a plurality of radio base stations capable of communicating with a mobile terminal (100) by radio communication. The radio base stations include a first base station (41, 42) connected to the mobile communication network (2); and second base stations (51, 52) connected to the fixed communication network (3) through wire communication lines (61, 62). A communication connection using a predetermined interface is established between one of the second base stations (51) and one of neighboring base stations (the first base station (42) and another one of the second base stations (52)) located in the neighborhood of the one of the second base stations (51).
摘要:
When installing a femto base station device 1b, failure that may occur in wireless communication is suppressed. The femto base station device 1b includes an RF unit 4 which transmits broadcast information or paging information to a femto terminal device 2b communicating with the femto base station device 1b, and an information storage unit 31 which adds and stores, in the broadcast information or the paging information, location information that relates to the location of the femto base station device 1b and is used by another wireless communication device to suppress interference.
摘要:
When installing a femto base station device 1b, failure that may occur in wireless communication is suppressed. The femto base station device 1b includes an RF unit 4 which transmits broadcast information or paging information to a femto terminal device 2b communicating with the femto base station device 1b, and an information storage unit 31 which adds and stores, in the broadcast information or the paging information, location information that relates to the location of the femto base station device 1b and is used by another wireless communication device to suppress interference.
摘要:
When installing a femto base station device 1b, failure that may occur in wireless communication is suppressed. The femto base station device 1b includes an RF unit 4 which transmits broadcast information or paging information to a femto terminal device 2b communicating with the femto base station device 1b, and an information storage unit 31 which adds and stores, in the broadcast information or the paging information, location information that relates to the location of the femto base station device 1b and is used by another wireless communication device to suppress interference.
摘要:
A resource used by a wireless terminal device to communicate with a terminal device in an internal network is appropriately managed. In a communication system 201, an internal network connection device 102 allocates, to a wireless terminal device 150, 151, its own resource for communicating with a terminal device 161 in an internal network 51, transmits data received from the wireless terminal device 150, 151 via the wireless base station device 101, to the terminal device 161, and transmits data received from the terminal device 161, to the wireless terminal device 150, 151 via the wireless base station device 101. The internal network connection device 102 or the wireless base station device 101 determines whether or not the allocation of the resource to the wireless terminal device 150, 151 should be maintained. Upon receiving a determination that the allocation of the resource should not be maintained, the internal network connection device 102 cancels the allocation of the resource.
摘要:
A resource used by a wireless terminal device to communicate with a terminal device in an internal network is appropriately managed. In a communication system 201, an internal network connection device 102 allocates, to a wireless terminal device 150, 151, its own resource for communicating with a terminal device 161 in an internal network 51, transmits data received from the wireless terminal device 150, 151 via the wireless base station device 101, to the terminal device 161, and transmits data received from the terminal device 161, to the wireless terminal device 150, 151 via the wireless base station device 101. The internal network connection device 102 or the wireless base station device 101 determines whether or not the allocation of the resource to the wireless terminal device 150, 151 should be maintained. Upon receiving a determination that the allocation of the resource should not be maintained, the internal network connection device 102 cancels the allocation of the resource.
摘要:
The distance measuring device includes a light source (1), a light-receiving sensor (2), a timing controller (5), a distance calculator (6), and a delay controller (8). The timing controller (5) outputs a modulation signal and plural reference timing signals. The modulation signal is a square wave signal having high and low level periods appearing alternately. Each of the high and low level periods has its length randomly selected from integral multiples of a predetermined unit time period. The reference timing signals include a signal having the same waveform as that of the modulation signal and a signal having the same waveform as that of the inverted modulation signal. The light source (1) varies an intensity of the light in concordance with the modulation signal. The delay controller (8) delays the plural reference timing signals by the delay period (Td) to create plural timing signals respectively. The light-receiving sensor (2) accumulates the electric charges generated within the reception time period, with regard to each of the timing signals. The distance calculator (6) calculates the time difference (τ) from amounts of the electric charges respectively associated with the timing signals, and calculates a distance (L) to the target (3) on the basis of the time difference (τ) and the delay period (Td).
摘要:
An adhesive composition includes a phenoxy resin having a bisphenol S skeleton in a structure and 10 to 100 parts by weight of a maleimide compound based on 100 parts by weight of the phenoxy resin. The maleimide compound has a plurality of maleimide groups in a structure and is at least one of a first maleimide compound having a melting temperature of 160° C. or lower and a gelling time at 200° C. of 180 to 350 seconds and a second maleimide compound having a melting temperature of 160° C. or lower and a gelling time at 250° C. of 110 to 150 seconds. A heat resistant adhesive film may be formed by coating the adhesive composition on a substrate film, and a wiring film may have a conductor wiring layer put between such heat resistant adhesive films.
摘要:
An electrode lead connection body includes a first member that includes a same material as the positive electrode lead and is configured to be connected the positive electrode lead, a second member that includes a same material as the negative electrode lead and is configured to be connected the negative electrode lead, the first and second members being joined to each other at a portion excluding a positive electrode joint as a portion to be joined to the positive electrode lead and a negative electrode joint as a portion to be joined to the negative electrode lead, and an insulating material at a position between the first and second members and near a joint portion to join the first and second members so as to prevent a contact between the first and second members.