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 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 a first uplink allocation information and a second uplink allocation information, and a receiver configured to receive a first reference signal in a case where the transmitted downlink control information is generated based on the first uplink allocation information, and a second reference signal in a case where the transmitted downlink control information is generated based on the second uplink allocation information.

Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.

Abstract: Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

Abstract: To solve a problem that although the increase of the number of frequency blocks by allocating discontinuous subcarriers (RBs) as in OFDM enables an increase in multi-diversity effect and an improvement in throughput, the number of RB allocation patterns increases with the increase of the number of frequency blocks, resulting in an increase in the amount of information relating to the allocated RBs, the resource block allocation unit is determined when resource blocks discontinuous on the frequency axis are allocated to a terminal, and the number of bits of scheduling information indicating the allocated resource blocks by using Tree Based is set to the number of bits corresponding to the determined allocation unit.

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 a first uplink allocation information and a second uplink allocation information, and a receiver configured to receive a first reference signal in a case where the transmitted downlink control information is generated based on the first uplink allocation information, and a second reference signal in a case where the transmitted downlink control information is generated based on the second uplink allocation information.

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: There is provided a wireless communication system which can synchronize a mobile station with a destination base station in response to the mobile station determining to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a reverse pilot signal received from the mobile station, generates reverse propagation quality information from the reverse pilot signal, and generates and transmits a control signal including the synchronization information and the reverse propagation quality information. A mobile station generates and transmits a reverse pilot signal, receives a signal including the control signal from each of the base stations.

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 wireless communication system including a base station and a mobile terminal, includes a setting unit to set a number of sets of at least one or more resource blocks for the mobile terminal, the at least one or more resource blocks of each set being consecutive in frequency. An allocation unit allocates the resource blocks for a transmission channel so that the resource blocks are not contiguous in frequency. A controller generates a reference signal sequence corresponding to a bandwidth of the allocated resource blocks, and maps the reference signal sequence to subcarriers according to an allocation of the resource blocks.

Abstract: In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame.

Abstract: A base station for supporting a plurality of radio access schemes is provided. The base station includes a radio transceiver, a storage section and a response sending section. The storage section stores at least one radio access scheme supported by the base station. The at least one radio access scheme includes a predetermined radio access scheme which is common with another base station. The response sending section sends a response to an initial connection received from a mobile station back to the mobile station. The initial connection is received in the predetermined radio access scheme. The response includes information indicating one of said at least one radio access scheme which is used to communicate with the mobile station.

Abstract: A wireless communication system includes a setting unit for setting a number of resource block groups, each of the resource block groups including consecutive resource blocks on a frequency axis, and an allocating unit for allocating the resource blocks for an uplink channel such that the allocated resource blocks are not contiguous.

Abstract: Provided is a wireless communication technique capable of supporting communication using a single component carrier, and communication using a plurality of component carriers. The communication using the plurality of carriers comprises a processing means for performing the signal processing in accordance with each of the carriers with respect to the common signal sequence used by the plurality of carriers. The present invention makes it possible to cope with the communication employing a single component carrier and the wireless communication employing a plurality of the component carriers. Further, PAPR of the reference signals can be made small because there is no possibility that the identical CAZAC sequence is used among the component carriers when a plurality of the component carriers are employed.

Abstract: In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame.

Abstract: A radio communication system includes a plurality of base stations with supporting a plurality of radio access schemes. Two or more base stations support a predetermined radio access scheme in common. A mobile station makes initial connection to one of the two or more base stations according to the predetermined radio access scheme, to allow communication with the one base station.

Abstract: There is provided a wireless communication system which can synchronize a mobile station with a destination base station in response to the mobile station determining to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a reverse pilot signal received from the mobile station, generates reverse propagation quality information from the reverse pilot signal, and generates and transmits a control signal including the synchronization information and the reverse propagation quality information. A mobile station generates and transmits a reverse pilot signal, receives a signal including the control signal from each of the base stations.

Abstract: There is provided a wireless communication system which can synchronize a mobile station with a destination base station in response to the mobile station determining to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a reverse pilot signal received from the mobile station, generates reverse propagation quality information from the reverse pilot signal, and generates and transmits a control signal including the synchronization information and the reverse propagation quality information. A mobile station generates and transmits a reverse pilot signal, receives a signal including the control signal from each of the base stations.

Abstract: A scheduling technique for limiting a discontinuous spectrum to reduce control information to be transmitted from a base station (BS) to each of mobile stations. The method has a ranking means for ranking the mobile stations for each resource block depending on the channel status, and an allocation means for allocating the resource blocks to the mobile stations depending on the ranking of the mobile stations so that the number of resource blocks in a resource block group for one mobile station may be not more than a set number. The resource block group including at least one or more continuous resource blocks on the frequency axis.