Abstract:
A base station is disclosed. The base station includes: a service area status determination unit configured to determine status of a service area of the base station based on received signals from mobile stations; a total transmission power determination unit configured to determine status of total transmission power of the base station based on total transmission power of surrounding base stations; a transmission power determination unit configured to determine transmission power of a common control channel of the base station based on the status of the service area and the status of the total transmission power; and a transmission power setting unit configured to set the transmission power determined by the transmission power determination unit.
Abstract:
A base station and a scrambling code setting method of automatically setting up a scrambling code, the base station including a scrambling code setting unit for setting up a base station identifier and a provisional downlink scrambling code that is provisionally assigned; and a transmitting unit for spectrum-spreading the base station identifier by the provisional scrambling code, and for transmitting the base station identifier; wherein the scrambling code setting unit assigns a lasting downlink scrambling code based on a report concerning reception of the base station identifier.
Abstract:
A base station and a scrambling code setting method of automatically setting up a scrambling code for the base station to use are offered. The base station includes: a scrambling code setting unit for setting up a base station identifier and a provisional downlink scrambling code that is provisionally assigned; and a transmitting unit for spectrum-spreading the base station identifier by the provisional scrambling code, and for transmitting the base station identifier; wherein the scrambling code setting unit assigns a lasting downlink scrambling code based on a report concerning reception of the base station identifier.
Abstract:
A base station is disclosed. The base station includes: a service area status determination unit configured to determine status of a service area of the base station based on received signals from mobile stations; a total transmission power determination unit configured to determine status of total transmission power of the base station based on total transmission power of surrounding base stations; a transmission power determination unit configured to determine transmission power of a common control channel of the base station based on the status of the service area and the status of the total transmission power; and a transmission power setting unit configured to set the transmission power determined by the transmission power determination unit.
Abstract:
In a packet communications system, a control apparatus implements routing control of a received packet directed for the mobile terminal. The mobile terminal includes a plurality of network interface cards; a communication manager configured to select at least one network interface card among from the plurality of network interface cards, in accordance with information regarding the network interface card; and an upper layer manager configured to receive the packet transmitted from the control apparatus, with using a selected network interface card.
Abstract:
A communication system includes a MN for transmitting a request for information which specifies a MAP to be used for packet reception and anycast address regarding a plurality of MAPs to a given AR connected to the MN, routers for transmitting the request to a MAP which has a shortest distance from the given AR based on the anycast address transmitted from the given AR, and each of the MAPS for transmitting the information which specifies the MAP to the MN.
Abstract:
A configuration comprises a destination address extracting/rewriting device 4 for extracting a destination address of a packet; a common-route packet extracting device 8 for extracting two or more packets having a common route at least in part of routes to their respective terminals from a plurality of packets, based on their extracted destination addresses; an aggregate packet creating device 9 for aggregating the plurality of packets having the common route at least in part of the routes to create an aggregate packet including information of each of the packets; a destination address giving device 10 for giving the aggregate packet a destination address so that the destination address of the aggregate packet is an address of an adjacent node on the common route; and an aggregate packet routing device 11 for routing the aggregate packet, based on the destination address.
Abstract:
Efficient paging control is achieved in a communication system that selectively provides one of communication services implemented by integrating a plurality of communication systems. Before transmitting a downlink signal to a terminal, a gateway requests each of the communication systems to transmit a paging signal to the terminal. Receiving the paging signals transmitted from the communication systems, the terminal selects a communication system A with the lowest communication cost in accordance with communication cost information contained in the paging signal. The terminal sends a request for connection to the selected communication system A. As a result, the communication system A transmits the downlink signal to the terminal.
Abstract:
A mobile node having two or more interfaces, a control method of the mobile node, and a mobile node control program are disclosed. The mobile node includes a generating unit to generate control information for each interface, an information providing unit for providing the control information provided by each interface to an upper layer, and a routing controlling unit to perform at least one of determining connectivity, and updating a routing based on the provided control information.
Abstract:
A controller apparatus, when it receives packets addressed to a mobile terminal, implements paging control in which it transmits a paging notification packet to a paging area of the mobile terminal, so as to obtain location information on the mobile terminal and to determine a forwarding destination of the packets. The controller apparatus includes a paging area forming unit having a plurality of algorithms for forming the paging area. The paging area forming unit is configured to form the paging area of the mobile terminal by an algorithm specified by the mobile terminal.