摘要:
A mobile radio system for radio communications between a base station and a plurality of mobile stations, as well as among a plurality of mobile stations, including a mobile radio channel assignment method, where each mobile station is capable of acquiring position information of the current position of the mobile station, as well as assigning a frequency channel for radio communications. The mobile station transmits and receives information using the assigned frequency channel, corresponding to the acquired position information.
摘要:
A communication apparatus and method for channel switching for ad-hoc communication provides effective utilization of an infrastructure communication channel while preventing a deterioration in the quality of the infrastructure communication affected by a transmission signal used in the ad-hoc communication. Typically, the number of channels that can be used for a second communication is increased.
摘要:
To reduce the processing load such as channel assignment and an authentication process in a plurality of radio base stations and communication terminals, and quickly and efficiently assign channels to the communication channels. The channel assigning method by a radio base station group, includes determining assignment of a communication channel between a communication terminal entering a radio area of the radio station group and all radio base stations within the radio station group by a base station in the radio base station group. Channel assigning information common to the radio base station group is updated as to the determined communication channel and a communication channel is assigned to the communication terminal with reference to the channel assigning information by each radio base station in the radio base station group other than the radio base station.
摘要:
To effectively utilize an infrastructure communication channel and increase a number of channels available for ad-hoc communication in a mobile communication apparatus enabling communication in an infrastructure communication mode for radio communication via a base station and in an ad-hoc communication mode for direct radio communication with another mobile communication apparatus, by providing a communication channel recognizer to recognize an infrastructure communication channel which does not interfere with an infrastructure communication within a radio service area of a base station, from among the infrastructure communication channels assigned for the infrastructure communication and a communication channel diverter to control utilizing a infrastructure communication channel, recognized by the communication channel recognizer, as a channel for the ad-hoc communication mode.
摘要:
A communication apparatus and method for channel switching for ad-hoc communication provides effective utilization of an infrastructure communication channel while preventing a deterioration in the quality of the infrastructure communication affected by a transmission signal used in the ad-hoc communication. Typically, the number of channels that can be used for a second communication is increased.
摘要:
A network element managing system includes a management control section for maintaining and managing network elements such as an exchange or a telecommunication line and a communication control section for controlling the communication processing of the network so that an interface is commonly used between the management control section and the communication control section, thereby satisfying a required performance in both of a processing request relating to maintenance, management and operation and a processing request relating to communication. That is, the system of the invention includes a scheduling section for determining execution order on the basis of the attribute of the processing request, and the loads of the communication control section and the management control section. Also, the communication control section and the management control section have a function for scheduling the processing request on the basis of the attribute of the object to be processed, respectively.
摘要:
A mobile communication system which performs a handover operation with high-reliability, while the system can flexibly cope with various circumstances in which a mobile station is used, without changing a hardware structure. A plurality of radio base stations form respective radio communication cells. Each of the radio base stations performs a radio channel setting control including a handover with respect to a call originated for the mobile station located in one of the cells. An exchange is connected to each of the radio base stations via a communication link so that the exchange performs a call process of the call in association with the radio channel setting control performed by the radio base stations. After the call becomes a completed call and prior to a handover operation, a movement of the mobile station from one of the cells in which the mobile station is located to another one of the cells adjacent to the one of the cells is predicted based on at least one of procedures of the radio channel setting control and the call process. When the movement is predicted so as to select candidate cells which are candidates of a transferee of the completed call, a free radio channel of the cells is acquired. A path connected to the acquired free radio channel is formed in the communication link.
摘要:
In an accounting system for a multimedia communications system, an additional information storage unit stores additional information to be supplied to subscriber terminals in the multimedia communications system by one or a plurality of additional information suppliers. An additional information adding unit adds the additional information to communication information transmitted between subscriber terminals communicating with each other. A measurement unit measures a degree of supply of the additional information supplied to at least one of the subscriber terminals communicating with each other. A database unit stores accounting information used to calculate a fee for a communication between the subscriber terminals communicating with each other. A control unit calculates the fee for the communication between the subscriber terminals communicating with each other on the basis of the accounting information and the degree of supply of the additional information measured by the measurement unit.
摘要:
A mobile station includes a wireless unit that sets a first resource that is used to directly communicate with another mobile station and a second resource that allows the mobile station to communicate with a wireless base station, the first resource and the second resource being set on the basis of resource information concerning the first resource and the second resource.
摘要:
An IP packet relay apparatus provided between networks to relay an IP packet relating to a host belonging to a specific group, comprising: a list in which an IP address possessed by a host is associated with a group identifier for identifying a group to which the host belongs; a judgment unit judging whether an IP packet that has received from one network and is addressed to a host connected to another network is an IP packet relating to the same group or not with reference to the list; and a forwarding unit relaying an IP packet judged to be the IP packet relating to the same group.