Abstract: For radio communications between a base station and a mobile station, resource allocation within a resource block including control resources used for control signals (CQI, ACK/NACK) and reference resources used for a reference signal is performed. The base station measures the quality of a channel between the mobile station and the base station itself. Based on the measured channel quality, the base station sets a ratio between resources for the control signals CQI and ACK/NACK in the control resources, and notifies the mobile station of the set resource ratio.

Abstract: A resource assignment method for a communication system provides a method to realize an estimate of channel with high accuracy for terminals which change channels rapidly. A resource assignment unit (102), supplied with channel information ISCI1 to NSCIN, determines assignment of resources to a first to a Nth terminals and outputs a resource assignment information SRA. A multiplex signal generating unit (103), supplied with the resource assignment information SRA, outputs a transmission signal STX. A resource selector (104), supplied with the channel information 1SCI1 to NSCIN and the relative position information SRP, determines the assignment of resources to the first to Nth terminals and outputs the resource assignment information SRA. A resource position generating unit (105), supplied with the resource assignment information SRA, calculates a relative position of an empty resource with respect to a multiplex position of a pilot signal and outputs the relative position information SRP.

Abstract: A communication system includes a plurality of nodes including a base station; at least one terminal; and at least one relay node through which each terminal can be connected to the base station. An entity in a network higher in layer than each relay node configures the relay node to set a target value for a predetermined parameter reflecting a radio link status of the relay node. The relay node monitors the predetermined parameter to notify an upper-layer node of difference information corresponding to a difference between the target value and a monitored parameter value. The upper-layer node controls a link parameter of a radio link connecting the upper-layer node and the relay node depending on the difference information, resulting in efficient radio resource allocation in a relay network with small signaling overhead.

Abstract: A mobile station in a wireless communication system including a base station, and a method for the mobile station includes a unit that sends a pilot signal to the base station. A sub-frame used for sending the pilot signal includes a first pilot block and a second pilot block. A first Zadoff-Chu sequence allocated to the first pilot block is different from a second Zadoff-Chu sequence allocated to the second pilot block.

Abstract: In a wireless communication system including a plurality of base stations each supporting at least one of two or more radio access schemes and at least one mobile station capable of performing communication by using the two or more radio access schemes, before the mobile station moves from a source base station to a target base station, the target base station notifies the mobile station, via the source base station, of a transparent container containing uplink radio access information that specifies a radio access scheme enabling at least an initial connection to be made. Thus, the mobile station identifies the radio access scheme supported by the target base station from the transparent container before moving from the source base station to the target base station.

Abstract: A mobile station in a communication system including a base station, the mobile station includes a unit for sending a signal that allocates a plurality of different Zadoff-Chu sequences to a frame to the base station.

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: 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 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: A mobile communication system includes a base station and a relay station. The relay station acquires a donor cell list indicating at least one candidate cell that can be used for a backhaul link. The relay station or the base station determine a donor cell used for the backhaul link from the donor cell list based on both first and second cell management information. The first cell management information relates to the at least one candidate cell and originates from the at least one base station. The second cell management information originates from the relay station.

Abstract: In a wireless communication system including a plurality of base stations each supporting at least one of two or more radio access schemes and at least one mobile station capable of performing communication by using the two or more radio access schemes, before the mobile station moves from a source base station to a target base station, the target base station notifies the mobile station, via the source base station, of a transparent container containing uplink radio access information that specifies a radio access scheme enabling at least an initial connection to be made. Thus, the mobile station identifies the radio access scheme supported by the target base station from the transparent container before moving from the source base station to the target base station.

Abstract: A mobile communication system includes a base station and a relay station. The base station transmits carrier information to the relay station during connection of a first radio link using a first carrier. The carrier information indicates at least one candidate carrier available for performing multi-carrier communication on the first radio link. The relay station transmits, to the base station, request information about a configuration of the first radio link for the at least one candidate carrier indicated by the carrier information. The base station further determines, in response to receiving the request information from the relay station, a second carrier used with the first carrier for the multi-carrier communication.

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 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: The object of the present invention is to provide a technology of deciding CoMP point dynamically by considering the spectrum efficiency after channel-dependent scheduling with different possible combinations of CoMP points. According to the present invention, A wireless communication system, characterized in deciding number of CoMP (coordinated multipoint transmission and reception) point to a user equipment by using information related to scheduling.

Abstract: A mobile station in a wireless communication system including a base station, and a method for the mobile station includes a unit that sends a pilot signal to the base station. A sub-frame used for sending the pilot signal includes a first pilot block and a second pilot block. A first Zadoff-Chu sequence allocated to the first pilot block is different from a second Zadoff-Chu sequence allocated to the second pilot block.

Abstract: The present invention relates to a wet sheet flexible package 1, including a plurality of wet sheets 2 impregnated with a liquid; a film bag 3 that is a flexible film bag packaging the plurality of wet sheets 2 and including a dispensing opening 31; and a label 5 attached to a surface of the film bag 3, covering the dispensing opening 31, and being able to be peeled off. In the wet sheet flexible package 1, when the label 5 is peeled off from the film bag 3, the dispensing opening 31 is unsealed and an adhesive layer 53 is exposed around the dispensing opening 51 on the surface of the film bag 3. A substrate 54 is provided between the adhesive layer 53 and the surface of the film bag 3, and the substrate 54 is composed of a film having a higher compression strength than a film composing the film bag 53.

Abstract: In a radio communication system, transmission of CAZAC sequences as the pilot signal sequences by using code division multiplexing as at least one of user multiplexing schemes, is done by dividing a system band as a frequency band usable in the system into frequency blocks B1 and B2 having bandwidths W1 and W2, generating the pilot signals of the frequency blocks B1 and B2 with a single carrier, using the pilot signal sequences having sequence lengths L1 and L2 corresponding to frequency blocks B1 and B2 respectively; and, transmitting the generated pilot signals as the pilot signals corresponding individual users, with multicarriers using an arbitrary number of frequency blocks among the plural frequency blocks

Abstract: The present invention provides a method for allocating a pilot sequence that can obtain effect of reducing interference by combining received pilot blocks when sequence such as the CAZAC sequence as a pilot sequence is used. In the present invention, the pilot sequences by the number of 2K are divided into K sets of {C—1, C—2}, {C—3, C—4}, . . . , {C_(2K?1), C—2K} and allocated a set of the pilot sequences to each of the cells #1 to #K. For example, pilot sequences: {C—1, C—2} are allocated to pilot blocks (SB #1, #2) of the cell #1, pilot sequences: {C—3, C—4} are allocated to pilot blocks (SB #1, #2) of the cell #2, pilot sequences: {C—5, C—6} are allocated to pilot blocks (SB #1, #2) of the cell #3, and pilot sequences {C—7, C—8} are allocated to two pilot blocks (SB #1, #2) of the cell #4.

Abstract: A transmitting equipment is used in a mobile communication system in which a signal obtained by cyclically shifting a predetermined sequence is used for communication. An inverse fast Fourier transform device of the transmitting equipment converts a signal obtained by signal processing on a predetermined sequence in a frequency region into a time region by inverse fast Fourier transform. A cyclic shift device cyclically shifts by a predetermined amount of shift the sequence in the signal converted into the time region by the inverse fast Fourier transform device.