| Patent application number | Description | Published |
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| 20090214156 | Optical module and optical waveguide - An optical module includes an optical waveguide including a waveguide core through which light propagates and a clad configured to trap the light in the waveguide core, and a circuit board on which a surface-type optical element is mounted. The optical waveguide further includes a reflective surface from which an end face of the waveguide core is exposed, the reflective surface being provided on an inclined face at one end face of the optical waveguide core in an extending direction of the waveguide core, and an element mount opening provided in the clad such as to be opposite from the reflective surface, the element mount opening having a size such as to contain the optical element. The optical waveguide is mounted on the circuit board while the optical element is contained in the element mount opening and is aligned with the reflective surface of the optical waveguide. | 08-27-2009 |
| 20090214157 | Optical module and optical waveguide - An optical module includes an optical waveguide including a plurality of waveguide cores through which light propagates, a clad configured to trap the light in the waveguide cores, a plurality of fiber guide grooves in which optical fibers are inserted, the fiber guide grooves being arranged in parallel, and an adhesive spread groove configured to connect the fiber guide grooves and provided at leading ends of the fiber guide grooves with which the optical fibers contact; and a fixing member fixed to the optical waveguide with an adhesive while covering the fiber guide grooves. The fiber guide grooves have side walls including support projections configured to support, align, and optical couple the optical fibers to the waveguide cores, and adhesive recesses configured to define gaps between outer peripheral surfaces of the optical fibers and the fiber guide grooves so that the adhesive spreads in the gaps. | 08-27-2009 |
| 20110142090 | LASER DIODE AND METHOD OF MANUFACTURING LASER DIODE - A laser diode includes: a substrate; a semiconductor layer including a lower cladding layer, an active layer, and an upper cladding layer; a strip-shaped ridge provided on an upper cladding layer side in the semiconductor layer; and a pair of resonator end faces sandwiching the semiconductor layer and the ridge. The substrate includes strip-shaped grooves provided on both sides of a portion facing the ridge along the portion facing the ridge, and extending in a direction different from a direction orthogonal to the extending direction of the ridge, and L | 06-16-2011 |
| Patent application number | Description | Published |
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| 20100103891 | USER APPARATUS, BASE STATION APPARATUS, AND METHOD IN MOBILE COMMUNICATION SYSTEM - A user apparatus transmits an uplink control signal to a base station apparatus using a single carrier scheme. The user apparatus includes: a unit configured to prepare acknowledgement information indicating positive acknowledgement or negative acknowledgement for a downlink data signal based on a result of demodulation of the downlink data signal; a unit configured to prepare channel state information indicating reception quality of a downlink reference signal; a unit configured to channel-code multiplexed control information in which the acknowledgement information and the channel state information are multiplexed to prepare the uplink control signal; and a unit configured to transmit the uplink control signal using dedicated resources different from resources for an uplink data signal. | 04-29-2010 |
| 20100235720 | CHANNEL ENCODING AND DECODING APPARATUSES AND METHODS - An encoding apparatus for use in a radio transmitter has a unit for turbo-SPC encoding a plurality of information bits which bits constitute a transmit signal, and deriving at least one set of redundant bits from one set of the information bits; and a redundancy-adjusting unit for decreasing or increasing the redundant bits according to a channel-encoding rate designated by a control signal, and adjusting the ratio of the number of the information bits to the number of the redundant bits. At least some of the redundant bits decreased or increased by the redundancy-adjusting unit are derived from an identical set of the information bits. | 09-16-2010 |
| 20110255494 | RADIO BASE STATION - A radio base station (eNB) according to the present invention includes: a determination unit ( | 10-20-2011 |
| 20110294439 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - A radio base station (eNB) according to the present invention includes: a calculation unit ( | 12-01-2011 |
| 20110299466 | RADIO BASE STATION - A radio base station (eNB) according to the present invention includes: an RI acquisition unit ( | 12-08-2011 |
| 20110305152 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - A radio base station (eNB) includes: a calculation unit ( | 12-15-2011 |
| 20110310817 | RADIO BASE STATION - A radio base station (eNB) according to the present invention includes an aggregation level determination unit configured to determine an aggregation level based on CQI notified from a mobile station (UE), a control channel element assignment unit configured to assign a plurality of continuous CCE to a PDCCH addressed to the mobile station (UE), based on the determined aggregation level, and a resource assignment unit configured to assign resource element groups constituting the assigned CCE as a resource for the PDCCH addressed to the mobile station (UE). The control channel element assignment unit is configured to assign a plurality of continuous CCE to the PDCCH addressed to the mobile station (UE) based on an aggregation level changed by the aggregation level determination unit, when failing to assign CCE to the PDCCH addressed to the mobile station (UE). | 12-22-2011 |
| 20110317745 | MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION, AND MOBILE STATION - In a mobile communication system according to the present invention, a reference signal sequence includes a plurality of signal sequences assigned in slot units in the predetermined physical channel based on a hopping pattern and a sequence shift pattern; the hopping pattern is configured to be determined based on a slot number and an SFN in the predetermined physical channel or the predetermined physical signal; the sequence shift pattern is configured to be determined based on the identification information of the cell to which the predetermined physical channel or the predetermined physical signal has been set; and the hopping cycle is configured to be determined based on a cycle of the slot number and an SFN cycle. | 12-29-2011 |
| 20120002577 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - A radio base station includes a power estimate unit configured to estimate a transmission power of an uplink signal in a mobile station (UE), a transmission format determination unit configured to determine a transmission bandwidth and a transmission frequency of the uplink signal as a transmission format of the uplink signal transmitted by the mobile station (UE), and a transmission instruction unit configured to instruct the mobile station (UE) to transmit the uplink signal by using the determined transmission format. The transmission format determination unit is configured to determine the transmission bandwidth of the uplink signal based on an estimation value of the transmission power, and to determine the transmission frequency of the uplink signal based on information relating to a cell with which the mobile station communicates. | 01-05-2012 |
| 20120002616 | BASE STATION APPARATUS AND METHOD IN MOBILE COMMUNICATION SYSTEM - A base station apparatus determines which mode of a subframe bundling mode (second mode) and a non-bundling mode (first mode) should be used by a user apparatus for communication, and reports a determination result. In the first mode, RTT period is a first period, and each of transmission and retransmission of the signal is performed every 1 TTI. In the second mode, RTT period is a second period that is longer than the first period, and each of transmission and retransmission of the signal is performed every plurality of TTIs. A radio resource to be used for retransmission is determined according to a first frequency hopping pattern in the first mode, and is determined according to a second frequency hopping pattern that is different from the first frequency hopping pattern in the second mode. | 01-05-2012 |
| 20120026952 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - A mobile communication method according to the present invention, includes the steps of: (A) assigning a radio resource for a PRACH in each cell within a mobile communication system in which cells are synchronized; and (B) performing, at a mobile station (UE), a random access procedure by transmitting an RA preamble via the PRACH using the radio resource assigned in each cell, wherein in the step (A), as the radio resource for a PRACH, a resource block in a different sub-frame is assigned between adjacent cells. | 02-02-2012 |
| 20120026960 | RADIO BASE STATION - A radio base station (eNB) is a radio base station that can simultaneously transmit a first downlink signal in which a transmission stream number is adaptively changed, and a second downlink signal in which a transmission stream number is fixed to 1, to a mobile station using an MIMO scheme, the radio base station including: a reception quality reception unit configured to receive information indicating reception quality of the first downlink signal transmitted by the mobile station; a reception quality adjustment unit configured to calculate an adjustment value of the information indicating the reception quality based on a stream number of the first downlink signal; and a processing unit configured to perform an adaptive modulation and demodulation process and a transmission power control process on the second downlink signal based on the calculated adjustment value. | 02-02-2012 |
| 20120028641 | MOBILE STATION AND MOBILE COMMUNICATION METHOD - A mobile station according to the present invention includes: a dedicated signaling reception unit ( | 02-02-2012 |
| 20120039286 | RADIO BASE STATION - A base station according to the present invention includes: a PUSCH resource assignment unit ( | 02-16-2012 |
| 20120057563 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station including a resource assignment unit configured to determine a time direction resource, a frequency direction resource, and a code direction resource which are to be assigned as a reception quality notification resource that should be used for notifying each mobile station of a reception quality in a downlink, the resource assignment unit is configured to determine the time direction resources and the frequency direction resources, which are to be assigned as the reception quality notification resource, and then determine the code direction resources to be assigned as the reception quality notification resource the resource assignment unit is configured to assign, as the reception quality notification resource, in order from a frequency direction resource with a lower usage rate of the code direction resource, within each time direction resource. | 03-08-2012 |
| 20120063399 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station includes a resource assignment unit for assigning a resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal to a first mobile station during a semi-persistent scheduling bearer setting process. The resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal is formed by a combination of a frequency direction resource and a code direction resource by which the first mobile station transmits a transmission acknowledgement signal after a predetermined timing from a timing of receiving downlink data, to the downlink data that has been scheduled by semi-persistent scheduling and has been transmitted via a downlink data channel. The resource assignment unit is configured to assign the resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal to the first mobile station based on a number of assignments of predetermined resources formed by a combination of a frequency direction resource and a code direction resource. | 03-15-2012 |
| 20120063412 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station including a resource assignment unit configured to assign a time direction resource, a frequency direction resource, and a code direction resource, as a physical signal transmission resource for transmitting a predetermined physical signal, to each mobile station is disclosed. The frequency direction resource is specified by a frequency position within a frequency region when frequency bandwidths used in a plurality of physical signals transmitted by each mobile station are the same. The resource assignment unit is configured to assign the code direction resource after assigning the time direction resource and the frequency direction resource, as the physical signal transmission resource, to each mobile station, when frequency bandwidths used in physical signals transmitted by each mobile station are the same, and assign the code direction resource after assigning the time direction resource and the frequency direction resource, as the physical signal transmission resource, to each mobile station. | 03-15-2012 |
| 20120087324 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station according to the present invention comprising: a radio base station configured to transmit a transmission power control command for a mobile station for controlling transmission power of an uplink data signal of the mobile station via a downlink control channel for a transmission power control command mapped to a specific subframe in a downlink channel, the radio base station including a resource assignment unit configured to decide the specific subframe and a transmission unit configured to transmit the transmission power control command for the mobile station via the downlink control channel for the transmission power control command mapped to the specific subframe decided by the resource assignment unit, in which the resource assignment unit is configured to decide the specific subframe according to a number of transmission power control commands transmitted in each subframe. | 04-12-2012 |
| 20120093123 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station includes a resource assignment unit configured to determine a time direction resource, a frequency direction resource, and a code direction resource which are to be assigned as a scheduling request transmission resource for transmitting a scheduling request that requests scheduling for uplink data communication to each mobile station. The resource assignment unit is configured to determine the time direction resource and the frequency direction resource, which are to be assigned as the scheduling request transmission resource, and then determine the code direction resource to be assigned as the scheduling request transmission resource. The resource assignment unit is configured to assign, as the scheduling request transmission resource, in order from a frequency direction resource having a lower usage rate of the code direction resource in each time direction resource. | 04-19-2012 |
