Abstract:
A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
Abstract:
A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
Abstract:
A base station includes a transmitter configured to transmit a downlink control information to a user equipment, the downlink control information being generated based on one of (1) a first uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and (2) a second uplink allocation information indicating a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency and a third frequency block corresponding to a third plurality of subcarriers which are contiguous in frequency, the second frequency block and the third frequency block being separated in frequency.
Abstract:
A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding to the control signals by CDM over the same bandwidth as that of grouped control signals.
Abstract:
To make it possible to speedily detect a radio link via which communication is possible, even in a case where the quality of wireless communication abruptly varies, a selecting means (12) is configured to control a communicating means (14) such that the communicating means (14) transmits a control signal which indicates the status of a first candidate radio link via the first candidate radio link. A second selecting means (13) is configured to select a second candidate radio link from among a plurality of radio links according to at least one selected from the group consisting of whether the control signal is successfully transmitted by the communicating means (14) and the status of an acknowledgment of the control signal, the second candidate radio link being a candidate to which a switch is made from a radio link used for communication.
Abstract:
The wireless communication quality visualization device 10 includes condition setting means 11 which sets measurement condition that can identify a target whose communication quality is measured, and extraction condition that can identify data to be displayed in data on communication quality collected according to the measurement condition, and display data generation means 12 which generates display data for displaying spatial and temporal communication quality based on the data extracted according to the extraction condition.
Abstract:
A base station includes a transmitter configured to transmit a downlink controlling formation to a user equipment, the downlink control information being generated based on an uplink allocation information indicating a first frequency block corresponding to a first plurality of subcarriers which are contiguous in frequency and a second frequency block corresponding to a second plurality of subcarriers which are contiguous in frequency, wherein at least a subcarrier, which is not indicated by the uplink allocation information, is located between the first frequency block and the second frequency block; and a receiver configured to receive a reference signal including a reference signal sequence having a sequence length corresponding to a first bandwidth which is a summation of a second bandwidth of the first frequency block and a third bandwidth of the second frequency block.
Abstract:
A radio communication system includes: a plurality of cells having different scrambling sequences, respectively, wherein at least two cells communicate with at lease two user terminals connected to different serving cells; and a controller which controls the plurality of cells and provides a single scrambling sequence to said at least two cells and said at least two user terminals for control signal transmission and reception.
Abstract:
A communication apparatus includes an accumulation means 501 that temporarily accumulates communication data in a previous stage of transmission to the MAC layer, an estimation means 502 that estimates an amount of transmittable data, which is an amount of data that can be transmitted in the MAC layer in a predetermined period, by using a radio wave index that is an index related to a radio wave in the frequency and/or a communication index that is an index related to wireless communication using the frequency, the indices being measured by an own apparatus or a wireless device including a MAC layer used by the own apparatus, and a control means 503 that controls, on the basis of an estimation result of the amount of transmittable data, a data flow of when the communication data accumulated in the accumulation means 501 is transmitted to a lower layer.
Abstract:
A radio communication system includes a network and a user terminal, wherein the network includes a plurality of radio stations and a controller which controls the plurality of radio stations, wherein at least two of the plurality of radio stations communicate with the user terminal, wherein the controller notifies the user terminal of information about resource for interference measurement, wherein the user terminal calculates and reports channel quality information based on the information.