摘要:
The present invention is designed to provide highly efficient small cell radio access. In a communication system to include a macro station (30), a local station (20), and a mobile terminal apparatus (10), the local station (20) generates measurement signals that are used in measurements in the mobile terminal apparatus (10) based on a user an identifier or a user group identifier, and transmits this signal to the mobile terminal apparatus (10). The mobile terminal apparatus (10) receives the measurement signals transmitted from the local station (20) and carries out with measurements with respect to the measurement signals based on the user identifier or the user group identifier.
摘要:
The object is achieved by a base station apparatus performing communications with mobile stations transmitting an uplink signal based on a frequency division multiple access scheme, the base station apparatus being provided with a unit for calculating an uplink interference wave level IoT and receive quality SIR of a pilot signal based on an uplink reference signal.
摘要:
A base station in a mobile communication system is disclosed. In the mobile communication system, user devices present in areas covered by existing base stations report tracking area identifiers of tracking areas to which the existing base stations belong. The base station includes a statistical processing unit configured to count the number of the tracking area identifiers reported by the user devices for each of the tracking areas; and a tracking area selecting unit configured to assign the base station one of the tracking areas corresponding to the largest number of the tracking area identifiers counted by the statistical processing unit.
摘要:
In a disclosed method, a mobile station determines whether handover is intra-base-station based on a received signal; the mobile station sends a handover request indicating the determination result to a base station; the base station determines whether the handover is intra-base-station or inter-base-station based on the handover request; and the base station performs an intra-base-station handover process based on a CQI reception level threshold for intra-base-station handover if the handover is intra-base-station.
摘要:
A mobile communication system including a mobile station and a radio access network apparatus is disclosed. The mobile station includes: means configured to perform discontinuous reception of broadcast information using the signaling control channel; means configured to determine whether to receive the shared data channel based on an item of the broadcast information to be transmitted and information indicating presence or absence of change of the content; and means configured to receive the shared data channel. The radio access control apparatus includes: means configured to transmit an item of broadcast information to be transmitted by the shared data channel corresponding to the signaling control channel and information indicating presence or absence of change of the content using the signaling control channel; and means configured to transmit, at a broadcast information transmission timing, the broadcast information corresponding to the transmitted item of the broadcast information using the shared data channel corresponding to the signaling control channel.
摘要:
In order to decrease delay time until data sending and receiving for a mobile station that is registered and that is in an idle state, the system is configured such that, when the mobile station issues a request of a communication service, the mobile station specifies a requesting QoS identifier, and launches a validity verification procedure for the service request, and a procedure of a security mode setup is completed along with a response to the service request, and channel information assigned to the mobile station is reported.
摘要:
The present invention is designed to make effective use of radio resources in VSEC to output a plurality of beams of varying tilt angles for sectorization in vertical directions. A radio communication method for a radio base station that outputs a plurality of beams of varying tilt angles and forms a plurality of cells that are sectorized vertically, and a user terminal that establishes wireless connection with the radio base station, provides the steps in which the radio base station acquires information about the communication capacity of each of the plurality of cells, and controls the vertical plane beam width and/or transmission power of each cell and sets the coverage area of each cell so that differences in communication capacity between the plurality of cells are reduced.