摘要:
A mobile communication system includes a mobile station, a base station that communicates wirelessly with the mobile station, a gateway apparatus that connects the base station to a core network, and a core network apparatus that is arranged in the core network. The base station includes a control unit that includes, in a message, information indicating that the mobile station has originated a call as an emergency call, and a transmission unit that transmits the message to the core network apparatus. In addition, the core network apparatus includes a reception unit that receives the message that was transmitted from the base station.
摘要:
A mobile communication system according to the present invention that can provide a mobile communication system capable of reducing power consumption by a radio base station apparatus includes a radio base station apparatus (1) that communicates with a mobile terminal (4), a location information management apparatus (3) that acquires location information of the mobile terminal (4), and a processing apparatus (2) that changes an operation state so that the radio base station apparatus (1) does not emit radio waves based on changes in the location information of the mobile terminal (4) acquired by the location information management apparatus (3). When the mobile terminal (4) moves from a position within a service area of the radio base station apparatus (1) to a position outside the service area, for example, the processing apparatus (2) changes the operation state so that the radio base station apparatus (1) does not emit radio waves.
摘要:
In order to avoid deterioration in sound quality caused by band shortage between an HNB-GW and an HNB, in a femto system 100, an HNB-GW 140 is connected to an HNB 120 via a network 130, and relays at least one of transmission and reception of voice data between an MGW 170 and the HNB 120. A narrow band determination unit 150 in the HNB-GW 140 determines whether the band of the network 130 is a narrow band which is equal to or lower than a predetermined threshold. When it is determined that the band is a narrow band by the narrow band determination unit 150, a conversion unit 160 converts the voice data to decrease a bit rate of the voice data transferred to the HNB 120 from the MGW 170.
摘要:
A gateway device connects a base station to a core network. The gateway device has a communication unit that receives, from a mobile management server in the core network, a key that cancels ciphering that was set in an NAS message that was received from a terminal that is subordinate to the base station.
摘要:
A mobile communication system including: a terminal, a movement-origin base station to which the terminal connects before movement of the terminal; a movement-destination base station to which the terminal connects after movement of the terminal; and a higher-order apparatus that has the movement-origin base station and the movement-destination base station under its control. Control information for voice encoding is set in advance in the movement-origin base station and the movement-destination base station, the movement-origin base station includes the control information of its own station in a first message and transmits the first message to the higher-order apparatus, and the higher-order apparatus includes the control information of the movement-origin base station in a second message and transmits the second message to the movement-destination base station.
摘要:
Each of belt layers of a pneumatic radial tire includes a plurality of single steel wires with an identical wire diameter extending linearly in an identical direction in alignment with each other and embedded in rubber. Each of the wires is provided with axial torsion. On the outer surface of a tread portion, circumferential grooves extend in the circumferential direction of the tire. The wire diameters of the single steel wires are 0.28 mm to 0.38 mm. An average of intervals of the single steel wires is not less than 0.10 mm. The tire has an out-of-plane bending stiffness of not less than 6000 N·mm2 per inch of length of the tread portion in the circumferential direction when a force application point is located at the circumferential groove. The implanted density E (wires/50 mm) of the single steel wires satisfies E≧1869×d2−1838×d+493, where d is the wire diameter.
摘要:
A gateway device connects a base station to a core network. The gateway device has a communication unit that receives, from a mobile management server in the core network, a key that cancels ciphering that was set in an NAS message that was received from a terminal that is subordinate to the base station.
摘要:
In order to avoid deterioration in sound quality caused by band shortage between an HNB-GW and an HNB, in a femto system 100, an HNB-GW 140 is connected to an HNB 120 via a network 130, and relays at least one of transmission and reception of voice data between an MGW 170 and the HNB 120. A narrow band determination unit 150 in the HNB-GW 140 determines whether the band of the network 130 is a narrow band which is equal to or lower than a predetermined threshold. When it is determined that the band is a narrow band by the narrow band determination unit 150, a conversion unit 160 converts the voice data to decrease a bit rate of the voice data transferred to the HNB 120 from the MGW 170.
摘要:
A mobile communication system includes terminals and a plurality of base stations that use scrambling codes to perform radio communication with the terminals. Each of the plurality of base stations transmits to neighboring base stations information of the range of scrambling codes for uplink that is reserved in its own station, and when determining the range of scrambling codes for uplink to be reserved in its own station, receives from neighboring base stations information of the ranges of scrambling codes for uplink reserved in the neighboring base stations.
摘要:
Efficiently produce micro-dispersion water of super-fine noble metal particles having a desired concentration by using a very safe, compact production apparatus comprising a power supply for high-voltage/current discharge, a high-voltage discharge generator equipped with a noble metal electrode and its counter electrode, a water tank, a water inlet to the water tank, and an outlet for micro-dispersion water of super-fine noble metal particles, by causing plasma discharge in water between the noble metal electrode and its counter electrode and then causing the generated noble metal ion vapor to contact, and micro-disperse in, water. The obtained water can be effectively used as drinking water.