摘要:
A mobile communication system 100 includes a selection unit 25 configured to select a transition target frequency from the plurality of frequencies when a condition under which a mobile communication terminal not utilize a transition source frequency being any of the plurality of frequencies is fulfilled, and an instruction unit 22 configured to instruct the mobile communication terminal to perform a transition to the transition target frequency selected by the selection unit. The selection unit 25 excludes the transition source frequency from a frequency candidate to be utilized by the mobile communication terminal until an elapsed time after the instruction of the transition to the transition target frequency exceeds a predetermined time.
摘要:
A UE 10 includes a storage unit 12 configured to store a specific cell accessible by the mobile communication unit and a neighboring cell element for identifying a neighboring cell provided around the specific cell, while associating the specific cell and the neighboring cell element with each other, a search unit 14 configured to search for the specific cell accessible, and a registration unit 13 configured to register a element for identifying a transition source cell as the neighboring cell element, when the UE 10 is transitioned from the transition source cell to the specific cell stored in the storage unit 12.
摘要:
A specific network apparatus 20 includes a collection unit 22 configured to collect neighboring base station information configured such that a neighboring public cell radio base station provided in the neighborhood of the specific cell is identifiable, and a communication unit 21 configured to notify a public cell network apparatus 30 of the neighboring base station information based on a re-establishment request message received via the specific cell from a UE10 whose access to the specific cell is restricted. The network apparatus 30 selects a reselection target public cell to be utilized by the UE10 among a plurality of public cells owned by the neighboring public cell radio base station.
摘要:
A mobile communication system 100 includes a selection unit 25 configured to select a transition target frequency from the plurality of frequencies when a condition under which a mobile communication terminal not utilize a transition source frequency being any of the plurality of frequencies is fulfilled, and an instruction unit 22 configured to instruct the mobile communication terminal to perform a transition to the transition target frequency selected by the selection unit. The selection unit 25 excludes the transition source frequency from a frequency candidate to be utilized by the mobile communication terminal until an elapsed time after the instruction of the transition to the transition target frequency exceeds a predetermined time.
摘要:
A UE 10 includes a storage unit 12 configured to store a specific cell accessible by the mobile communication unit and a neighboring cell element for identifying a neighboring cell provided around the specific cell, while associating the specific cell and the neighboring cell element with each other, a search unit 14 configured to search for the specific cell accessible, and a registration unit 13 configured to register a element for identifying a transition source cell as the neighboring cell element, when the UE 10 is transitioned from the transition source cell to the specific cell stored in the storage unit 12.
摘要:
A network apparatus 20 includes a specific cell information management unit 22 configured to manage information on a specific cell for each of the plurality of public cells, the specific cell having a service area overlapping with the service area of the public cell and using the same frequency as the public cell, a communication unit 21 configured to receive a communication request signal from a mobile communication terminal visiting any of the plurality of public cells, and a selection unit 24 configured to select a communication frequency to be used by the mobile communication terminal among the communication frequencies of the plurality of public cells based on the information managed by the specific cell information management unit in response to the communication request signal from the mobile communication terminal.
摘要:
A control device 100 of the present invention includes: a holding unit 500 configured to hold a communication-disconnected cell; a selection unit 700 configured to make priority of the communication-disconnected cell lower than priority of the other frequency cells and to select a frequency cell with which a target mobile station 900 is to communicate, when it is determined that the predetermined condition is satisfied; and a notification unit 300 configured to notify the target mobile station 900 of the frequency cell selected by the selection unit 700 and the holding unit 500 is configured to hold the frequency cell notified by the notification unit 300, as the communication-disconnected cell when a control signal from the target mobile station 900 is not received through the frequency cell within a predetermined time period.
摘要:
A mobile communication method according to the present invention includes a step of determining whether or not a predetermined condition is satisfied in accordance with a connection request signal transmitted by a mobile station UE in a first connection state which is a state where the mobile station UE is connected to an access point APN#1 of a first network via a radio base station BTS and a core network device CN, and a step of switching the connection state of the mobile station UE from the first connection state to a second connection state in a case where the predetermined condition is determined to be satisfied, the second connection state being a state where the mobile station is connected to an access point APN¥#2 of a second network not via the core network device CN but via the radio base station BTS.
摘要:
A disclosed mobile radio communications system comprises an exchange station; first and second radio base stations configured to radio-communicate with a mobile station and configured to relay data from the mobile station; first and second radio control stations configured to wire-communicate with the first and second radio base stations, respectively, and configured to establish a wired communication path for relaying the data transmitted from the mobile station to the exchange station; a transmission device configured to wire-communicate with the first and second radio base stations, and configured to establish a local wired communication branch for relaying the data transmitted from the mobile station between the first and second radio base stations without going through the first or second radio control station; a third radio base station configured to radio-communicate with the mobile station, configured to relay the data transmitted from the mobile station, and incapable of communicating with the transmission device; and a third radio control station configured to wire-communicate with the third radio base station, and configured to establish a wired communication branch for relaying the data transmitted from the mobile station to the exchange station.A method of adding a radio communication branch comprises the step of, when a request for adding a radio communication branch through the third radio base station is generated while the data transmitted from the mobile station is being relayed via the local wired communication branch, determining whether to reject the request, based on a radio quality parameter between the mobile station and the third radio base station.
摘要:
A disclosed mobile radio communications system comprises an exchange station; first and second radio base stations configured to radio-communicate with a mobile station and configured to relay data from the mobile station; first and second radio control stations configured to wire-communicate with the first and second radio base stations, respectively, and configured to establish a wired communication path for relaying the data transmitted from the mobile station to the exchange station; a transmission device configured to wire-communicate with the first and second radio base stations, and configured to establish a local wired communication branch for relaying the data transmitted from the mobile station between the first and second radio base stations without going through the first or second radio control station; a third radio base station configured to radio-communicate with the mobile station, configured to relay the data transmitted from the mobile station, and incapable of communicating with the transmission device; and a third radio control station configured to wire-communicate with the third radio base station, and configured to establish a wired communication branch for relaying the data transmitted from the mobile station to the exchange station. A method of adding a radio communication branch comprises the step of, when a request for adding a radio communication branch through the third radio base station is generated while the data transmitted from the mobile station is being relayed via the local wired communication branch, determining whether to reject the request, based on a radio quality parameter between the mobile station and the third radio base station.