摘要:
A base station outputs annunciation information which corresponds to a plurality of radio cells established by a 3G public base station and an LTE public base station and which is different from annunciation information output from the 3G public base station and the LTE public base station into a target region X and forms a radio cell. A mobile station that enters the radio cell receives the annunciation information of the radio cell and executes a position registration process. An information administration device can thereby find the mobile station based on the position registration process even in the environment where a plurality of radio cells to which different frequencies are assigned are established geographically overlapping with one another.
摘要:
A base station outputs annunciation information which corresponds to a plurality of radio cells established by a 3G public base station and an LTE public base station and which is different from annunciation information output from the 3G public base station and the LTE public base station into a target region X and forms a radio cell. A mobile station that enters the radio cell receives the annunciation information of the radio cell and executes a position registration process. An information administration device can thereby find the mobile station based on the position registration process even in the environment where a plurality of radio cells to which different frequencies are assigned are established geographically overlapping with one another.
摘要:
A mobile communication system 100 includes a radio base station 20 for a specific cell configured to manage a specific cell to which any one of a plurality of frequencies allocated to a public cell is allocated. The radio base station 20 for a specific cell notifies guidance notification leading cell reselection from the public cell to the specific cell by using the remaining frequencies other than the frequency allocated to the specific cell.
摘要:
A radio controller 100 includes a transmission power acquisition unit 111 configured to acquire a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell, an offset determination unit 115 configured to determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value acquired by the transmission power acquisition unit, and an offset notification unit 117 configured to notify the power offset determined by the offset determination unit to the mobile station.
摘要:
A radio controller 100 includes an acquisition unit configured to acquire a radio communication state of a neighboring cell around the cell formed by a base station 200, and a threshold determination unit configured to determine an in-out threshold based on an acquisition result of the radio communication state by the acquisition unit. The threshold determination unit calculates an estimated overall reception level within a frequency band at a point at which the reception level of the common control channel transmitted by the base station 200 becomes the highest in the cell formed by the base station 200, based on the reception level of the common control channel and the overall reception level, and determines the in-out threshold based on the calculated estimated overall reception level.
摘要:
A radio controller 100 includes a transmission power acquisition unit 111 configured to acquire a neighboring cell transmission power value that is a transmission power value of a radio signal transmitted from a base station forming the neighboring cell, an offset determination unit 115 configured to determine a power offset of the neighboring cell to be added to the predetermined transmission power value, based on a difference between the predetermined transmission power value and the neighboring cell transmission power value acquired by the transmission power acquisition unit, and an offset notification unit 117 configured to notify the power offset determined by the offset determination unit to the mobile station.
摘要:
A radio network controller 100 detects a plurality of handover candidate cells set to have the same ScC based on the acquired ScC, and determines as a handover target cell a cell whose correlation between the reception level acquired regularly from mobile station 300 and the radio communication state acquired from the mobile station 300 at handover is the highest among the plurality of handover candidate cells detected.
摘要:
A radio controller 100 includes an acquisition unit configured to acquire a radio communication state of a neighboring cell around the cell formed by a base station 200, and a threshold determination unit configured to determine an in-out threshold based on an acquisition result of the radio communication state by the acquisition unit. The threshold determination unit calculates an estimated overall reception level within a frequency band at a point at which the reception level of the common control channel transmitted by the base station 200 becomes the highest in the cell formed by the base station 200, based on the reception level of the common control channel and the overall reception level, and determines the in-out threshold based on the calculated estimated overall reception level.
摘要:
A determination device 20 includes a measurement unit 21 configured to measure the reception level of a received signal at each of N frequencies where N is the number of frequencies selectable by a specific cell radio base station, a comparison unit 23 configured to compare the N-th reception level in descending order of the reception level, among the reception levels measured at N frequencies by the measurement unit, with a tolerable interference threshold which is accepted by the specific cell radio base station, and a determination unit 24 configured to determine that a specific cell radio base station is installable if the N-th reception level is lower than the tolerable interference threshold.
摘要:
A radio network controller includes an acquisition unit configured to acquire a radio communication state of a neighboring cell located around a cell formed by a base station which the mobile station camps on among base stations, and a level determination unit configured to determine the in-out reception level based on an acquisition result of the radio communication state by the acquisition unit. The level determination unit calculates an estimated reception level of the radio channel in a reception level tie point P in which the reception level of the radio channel transmitted by a base station 200 and the reception of the radio channel transmitted by a target base station 202 become substantially equal to each other, and determines the in-out reception level based on the calculated estimated reception level α.