摘要:
A base station for a multi-carrier TDMA radio communication system comprises a first management table for registering at least one candidate channel for single-channel communication selected from among multiple traffic channels each defined in terms of the carrier frequency and time slot number, a second management table for registering at least one group of candidate channels for multi-channel communication selected from among the multiple traffic channels, and a channel assigning unit which, in response to the reception of a channel assignment request from a mobile station, assigns at least one traffic channel to the requesting mobile station by making reference to one of the first and second management tables depending on the type of the mobile station.
摘要:
In order to efficiently use each of storage physical devices fast in access rate for each data block even where a deviation in access frequency exists within a file, in a storage system comprising a plurality of the storage physical devices, a policy is stored within the storage system in advance with respect to the placement of file's data blocks, and data of each file is evaluated with respect to the policy upon storage of the file's data blocks. A decision as to in which storage physical device the corresponding data blocks should be located, is made based on the evaluation result of the policy.
摘要:
In a mobile IP network system including a plurality of radio access networks for connecting with mobile stations via radio links and an IP network connected with a plurality of packet nodes for transferring IP packets, each of the radio access networks has at least one base station controller and at least one radio base station connected to the base station controller. Each of the base station controllers in the radio access network is connected to the plurality of packet nodes to each other via a network and selects one of the plurality of packet nodes in accordance with a state of each mobile station to establish a logical connection to be used in IP packet communication of the mobile station.
摘要:
A mobile communication system with a packet switching function which enables sharing of radio resources among mobile stations, wherein a mobile station which has generated a request for communication quality assurance periodically sends a packet for requesting preferential use of a radio channel in order to prevent timeout of the state transition timer, timeout of which would cancel radio channel assignment to the mobile station and bring it into a dormant state if a certain period elapses without transmission or reception of a signal, so that it can remain in the active state and hold the radio channel continuously. In addition, when the mobile station requesting communication quality assurance moves from one cell to another or requests radio channel assignment, the base station controller controls the radio base station so that the mobile station can be assigned a radio channel by sending a priority request packet.
摘要:
In a mobile IP network system containing a plurality of radio access networks 2 for connecting with mobile stations 1 via radio links and an IP network 102 connected with a plurality of packet nodes for transferring IP packets, each of the radio access networks has at least one base station controller 7 and at least one radio base station 6 connected to the base station controller. Each of the base station controllers 7 in the radio access network is connected to the plurality of packet nodes to each other via a network 104 and selects one of the plurality of packet nodes in accordance with a state of each mobile station to establish a logical connection to be used in IP packet communication of the mobile station.
摘要:
After a first base station connects to a first mobile terminal, a first GW (gateway) receives a request for connection between the first mobile terminal and a second GW and identifiers of the second GW and the first mobile terminal and transmits identifiers of the first mobile terminal and the first GW to the second GW. The second GW transmits an MPLS allocation flag to the first GW. The first GW transmits an MPLS allocation signal including an identifier of the first mobile terminal to the second GW via a second NW (network) apparatus. The first base station receives an identifier of the first GW and the MPLS allocation flag from the first GW via a management server and transmits the MPLS allocation signal including the identifier of the first mobile terminal to the first GW via a first NW apparatus.
摘要:
A fluoro rubber composition which is able to make both a high tensile strength and a high elongation at break after vulcanization compatible with each other and from which favorable mechanical characteristics are obtained even in a high-temperature environment; and a bladder for tire fabrication, which is manufactured using the same are provided. The fluoro rubber composition includes a rubber component containing a fluoro rubber and carbon black, wherein in a dynamic viscoelasticity test of an unvulcanized rubber by a rubber process analyzer (RPA) (measurement temperature: 100° C., measurement frequency: 1 Hz), a difference δGA′ (G′(1%)−G′(100%)) between a shear modulus G′ (1%) at the time of a dynamic strain of 1% and a shear modulus G′ (100%) at the time of a dynamic strain of 100% is 120 kPa or more and not more than 3,000 kPa.
摘要:
A microscope according to the present invention includes an imaging unit including a first illuminating unit, an imaging element, and a projection optical system, the first illuminating unit including a light source that illuminates a first object, the imaging element performing imaging of the first object, the projection optical system projecting an image of the first object onto the imaging element; a measuring unit configured to measure a second object for setting an imaging condition used when performing imaging of the second object at the imaging unit; and a controller configured to concurrently perform the imaging of the first object at the imaging unit and the measurement of the second object at the measuring unit.
摘要:
To control the communication quality on the terminal basis without making the base station more complicated, it is provided a communication system, comprising at least one computer and a gateway that is connected to the at least one computer through a first network. The gateway is connected to at least one terminal through a second network. The at least one terminal performs communications with the at least one computer via the gateway. The gateway estimates quality of the communications between the gateway and the at least one computer in the first network; and determines a priority for the communications between the gateway and the at least one terminal in the second network according to the estimated quality of the communications in the first network.
摘要:
A bladder for tire production comprises a silicone rubber composition comprising (A) 100 parts by mass of a specified straight-chain diorganopolysiloxane; (B) 0.01-10 parts by mass of a specified organohydrogenpolysiloxane; (C) 20-80 parts by mass of a dry silica; and (D) 0.1-1000 ppm of a platinum group metal catalyst as converted to a weight of a platinum group metal per a total mass of the components (A) and (B).