Abstract: A FrontHaul Multiplexer (FHM) for relaying communications between a signal processing device and a plurality of radio devices includes a storage unit that stores a table in which device identification information of each of the plurality of radio devices is associated with beam identification information assigned to the radio device; a scheduling information reception unit that receives, from the signal processing device, scheduling information of a user terminal performing radio communications with the plurality of radio devices; a determination unit that acquires from the table the device identification information associated with the beam identification information of uplink included in the scheduling information and then determines from the acquired device identification information the radio device in charge of the user terminal; and a transmission unit that transmits to the signal processing device an uplink signal transmitted from the determined radio device.

Abstract: A vapor deposition mask made of a semiconductor substrate, comprising a plurality of openings to pass vapor deposition particles, wherein an aperture portion of which opening width is smallest is disposed between an edge of the opening on a vapor deposition source side and an edge of the opening on a substrate side, the opening width on the substrate side is larger than that of the aperture portion, and at least a part of an inner wall of each of the plurality of openings has a uneven shape.

Abstract: An FHM for relaying communications between a signal processing device and a plurality of radio devices comprises: a storage unit that stores a table in which device identification information of each of the plurality of radio devices is associated with beam identification information assigned to the radio device; a scheduling information reception unit that receives, from the signal processing device, scheduling information of a user terminal performing radio communications with the plurality of radio devices; a determination unit that acquires from the table the device identification information associated with the beam identification information of uplink included in the scheduling information and then determines from the acquired device identification information the radio device in charge of the user terminal; and a transmission unit that transmits to the signal processing device an uplink signal transmitted from the determined radio device.

Abstract: Provided are a radio communication system, a radio base station and a communication method which enable an inter base-station handover while reducing a processing load on a core network. An eNB 100 sends a handover request which requests an inter base-station handover of a UE 50 from the eNB 100 to an eNB 200 via an inter base-station transmission path. The eNB 200 receives the handover request from the eNB 100, and completes the handover of the UE 50 from the eNB 100 to the eNB 200 by using a communication path to the UE 50 via a highway between an MME 20 and the eNB 100 and the inter base-station transmission path.

Abstract: A signal load onto a mobility management node MME is reduced by defining a case which does not require “Path Switch” when X2 handover processing is performed for a mobile station UE. A radio base station eNB#1 according to the present invention includes a handover processing unit 14 configured not to perform “Path Switch” when performing X2 handover processing for a mobile station to a radio base station eNB#2 having the same “Virtual eNB ID#1” as the radio base station eNB#1.

Abstract: A mobile communication method includes: a step of transmitting, by a radio base station eNB#3, “Forwarding Request” on downlink user data addressed to a mobile station UE to a radio base station eNB#1; a step of switching, in response to the “Forwarding Request”, by the radio base station eNB#1, a forwarding destination of the downlink user data addressed to the mobile station UE from the radio base station eNB#2 to the radio base station eNB#3; and a step of transmitting, by the radio base station eNB#3, the downlink user data addressed to the mobile station UE to the mobile station UE.

Abstract: A mobile communication method includes: a step of transmitting, by a radio base station eNB#3, “Forwarding Request” on downlink user data addressed to a mobile station UE to a radio base station eNB#1; a step of switching, in response to the “Forwarding Request”, by the radio base station eNB#1, a forwarding destination of the downlink user data addressed to the mobile station UE from the radio base station eNB#2 to the radio base station eNB#3; and a step of transmitting, by the radio base station eNB#3, the downlink user data addressed to the mobile station UE to the mobile station UE.

Abstract: A signal load onto a mobility management node MME is reduced by defining a case which does not require “Path Switch” when X2 handover processing is performed for a mobile station UE. A radio base station eNB#1 according to the present invention includes a handover processing unit 14 configured not to perform “Path Switch” when performing X2 handover processing for a mobile station to a radio base station eNB#2 having the same “Virtual eNB ID#1” as the radio base station eNB#1.

Abstract: Provided are a radio communication system, a radio base station and a communication method which enable an inter base-station handover while reducing a processing load on a core network. An eNB 100 sends a handover request which requests an inter base-station handover of a UE 50 from the eNB 100 to an eNB 200 via an inter base-station transmission path. The eNB 200 receives the handover request from the eNB 100, and completes the handover of the UE 50 from the eNB 100 to the eNB 200 by using a communication path to the UE 50 via a highway between an MME 20 and the eNB 100 and the inter base-station transmission path.

Abstract: A radio base station BTS includes an estimation unit 13 configured to estimate a time when a buffer of a scheduled mobile station UE becomes empty based on a remaining amount of data in the buffer of the mobile station UE, the remaining amount reported by the mobile station, and a sending unit 15 configured to send the mobile station UE a Zero Grant instructing to stop transmission of a data signal via an E-DPDCH based on the estimated time.

Abstract: A terminal switching method for switching terminals, in a communication system in which HARQ processing is performed, to which a base station grants a transmission permission, from a terminal A to a terminal B includes notifying the terminal B of aborting of the transmission permission, setting a time point at which an HARQ process whose state of the HARQ processing is a retransmission waiting state with the terminal A is performed as a virtual starting point, setting a retransmission waiting window having a predetermined window length with the virtual starting point being regarded as its starting point, and notifying the terminal B of the transmission permission when there is no HARQ process having the retransmission waiting state with the terminal A, wherein the virtual starting point setting and the window setting are repeated until there is no HARQ process having the retransmission waiting state with the terminal A.

Abstract: A mobile communication method includes step for transmitting a first scheduling grant information to a first mobile station UE scheduled in a current scheduling assignment slot, and transmitting a second scheduling grant information to a second mobile station UE to be scheduled in a next TTI by the radio base station Node B at a time of switching between mobile stations UE to be scheduled, the first scheduling grant information instructing to stop transmission of a MAC-e PDU in a next transmission time interval, the first scheduling grant information corresponding to a minimum size of the MAC-e PDU which can contain only one MAC-d PDU.

Abstract: A radio base station includes: a table storage unit storing a table in which an E-TFCI indicating a transport format combination indicator of the physical data channel to be transmitted by a mobile station is associated with ?ed that is used to determine a SG and is an offset value of transmission power of the physical data channel to be transmitted by the mobile station; a parameter selector selecting the ?ed associated with the E-TFCI from the table; and a communication controller determining a SG based on the ?ed thus selected and an E-TFCI associated with the selected ?ed, and controlling transmission power of the mobile station by using the SG thus determined.

Abstract: A radio base station 200 includes a call process controller 105 and a baseband processor 109. The call process controller 105 notifies the baseband processor 109 of an offset of the baseband resource when accepting the priority call. The baseband processor 109 changes the baseband resource to be allocated to the normal call in a predetermined cycle and applies a resource use restriction based on the offset notified from the call process controller 105, the resource use restriction restricting the baseband resource to be allocated to the normal call within a range defined by subtracting the offset from a total baseband resource.

Abstract: A base station that gives a transmission opportunity to a mobile station present in an area of the base station in a unit of a predetermined time length, and controls a transfer rate of an uplink by specifying power of a data transfer channel by a power ratio to a specific channel for which predetermined power control is executed. The base station includes a power measurement unit a reception signal, and an EUL control that measures power of each channel constituting unit that calculates a free resource based on reception power of each channel and determines a power ratio between a data transfer channel through which the mobile station performs transmission and the specific channel, based on a size of data received most recently from the mobile station, the free resource, required communication quality predetermined for each size of reception data, and most recent reception power of the specific channel.

Abstract: The radio base station includes a monitoring controller for determining whether to switch between BB cards; and a baseband signal processor for transmitting a suspension request to suspend the transmission of the user data when it is determined that the BB cards are switched, and performing the handover of a processing between the BB cards based on the transmission of the suspension request. The baseband signal processor transmits a capacity allocation or a zero grant requesting to set the transmission rate of the user data to zero.

Abstract: A radio base station NodeB according to the present invention is configured, in EUL communication in “Time and Rate” system, to determine an SG to be notified to the mobile station scheduled in a next scheduling slot, based on maximum allowable reception power in the radio base station NodeB at a time of determining the SG to be notified to the mobile station scheduled in the next scheduling slot, and based on a DPCCH SIR target corresponding to respective SGs.

Abstract: A terminal switching method for switching terminals, in a communication system in which HARQ processing is performed, to which a base station grants a transmission permission, from a terminal A to a terminal B includes notifying the terminal B of aborting of the transmission permission, setting a time point at which an HARQ process whose state of the HARQ processing is a retransmission waiting state with the terminal A is performed as a virtual starting point, setting a retransmission waiting window having a predetermined window length with the virtual starting point being regarded as its starting point, and notifying the terminal B of the transmission permission when there is no HARQ process having the retransmission waiting state with the terminal A, wherein the virtual starting point setting and the window setting are repeated until there is no HARQ process having the retransmission waiting state with the terminal A.

Abstract: A radio base station BTS includes an estimation unit 13 configured to estimate a time when a buffer of a scheduled mobile station UE becomes empty based on a remaining amount of data in the buffer of the mobile station UE, the remaining amount reported by the mobile station, and a sending unit 15 configured to send the mobile station UE a Zero Grant instructing to stop transmission of a data signal via an E-DPDCH based on the estimated time.

Abstract: A radio base station BTS includes an upper limit value management unit 22 configured to determine and manage a upper limit value common to all mobile stations UE based on a bandwidth capable of being used for transmitting the uplink data in a wired section (Iub) between the radio base station and a radio network controller and a scheduling unit 23 configured to determine an Absolute Grant (AG) to be transmitted to a mobile station UE which is subjected to scheduling of the high-speed uplink communication so as not to exceed the upper limit value. The upper limit value management unit 22 is configured to decrease the upper limit value when a congestion signal in the wired section (Iub) is received for a predetermined number of times during a fit predetermined interval of time.