Patent application number | Description | Published |
20120208589 | MOBILE COMMUNICATION SYSTEM, RADIO BASE STATION, AND MOBILE STATION - A radio base station eNB according to the present invention includes: a path loss calculation unit | 08-16-2012 |
20120213192 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station eNB according to the present invention includes: a transmission format determination unit | 08-23-2012 |
20120252513 | RADIO BASE STATION - Even when it is not possible to appropriately receive SRS, a control process is appropriately performed. A radio base station eNB according to the present invention includes a control unit | 10-04-2012 |
20120269084 | RADIO BASE STATION - A reception quality in a radio base station eNB is estimated with a high accuracy by using a reference signal. The radio base station eNB according to the present invention includes signal power estimation units | 10-25-2012 |
20120269149 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - To avoid a reduction in a peak rate in an uplink as much as possible. A radio base station eNB according to the present invention includes a scheduling unit | 10-25-2012 |
20130028207 | BASE STATION APPARATUS AND METHOD IN MOBILE COMMUNICATION SYSTEM - A base station apparatus includes: decoding units for an uplink control signal and an uplink shared data signal; and a reliability determination unit configured to determine a degree of reliability that predetermined information is included in the uplink control signal that is received periodically. In the case where timing of a predetermined period for the predetermined information agrees with reception timing of the uplink shared data signal, (1) whether to perform decoding by assuming that the uplink shared data signal includes the predetermined information is determined according to whether the period is equal to or less than a radio frame length, (2) if the period is longer than the radio frame length, whether to decode the uplink shared data signal by assuming that the uplink shared data signal includes the predetermined information is determined according to whether the degree of reliability is higher than a predetermined value. | 01-31-2013 |
20130051337 | RADIO BASE STATION AND MOBILE COMMUNICATION METHOD - A radio base station (eNB) according to the present invention includes: a management unit ( | 02-28-2013 |
Patent application number | Description | Published |
20130059595 | BASE STATION AND METHOD IN MOBILE COMMUNICATION SYSTEM - A base station allocates a radio resource to a scheduling-target user based on a scheduling metric which is calculated for each of scheduling-target users and calculates the amount of available data for each user. When the radio resource is allocated to the scheduling-target user, the amount of data (D | 03-07-2013 |
20130107751 | BASE STATION AND METHOD | 05-02-2013 |
20130210341 | BASE STATION AND METHOD - A base station includes a determination unit that determines whether user equipment performs radio communication through a booster, based on delay time of a signal transmitted to and received from the user equipment; a target SIR setting unit that sets a target SIR to be compared to a received SIR for performing transmission power control based on the received SIR of an uplink signal from the user equipment; a transmission power control signal generating unit that generates, based on the target SIR and the received SIR, a transmission power control signal to be set for controlling transmission power of the user equipment; and a transmitter that transmits the transmission power control signal to the user equipment. When determination is made that the radio communication is performed through the booster, the target SIR is set to be less than or equal to a predetermined upper limit value. | 08-15-2013 |
20130244681 | BASE STATION AND METHOD - A base station that performs radio communication with a mobile station includes an index calculation unit that calculates an index representing interference in a frequency band, wherein the frequency band is to be utilized by a different base station; a frequency band selection unit that selects the frequency band based on the index calculated by the index calculation unit, wherein, in the frequency band, the interference is less than or equal to a predetermined threshold value; and a communication unit that performs the radio communication with the mobile station in the frequency band selected by the frequency band selection unit. | 09-19-2013 |
20130286995 | BASE STATION AND SCHEDULING METHOD OF MOBILE COMMUNICATION SYSTEM - A base station of a communication system includes a quality information retrieval unit that retrieves quality information indicating a radio channel state of user equipment, a threshold value determination unit that determines, for each of the user equipment, a threshold value for at least one of a data retention amount and a data retention time period, depending on the quality information, a scheduler that calculates a scheduling coefficient for the user equipment for which at least the one of the data retention amount and the data retention time period exceeds the threshold value, and that allocates a radio resource to the user equipment at least in accordance with a magnitude of the scheduling coefficient, and a notification unit that reports to the user equipment that the radio resource is allocated. | 10-31-2013 |
20130301602 | BASE STATION IN MOBILE COMMUNICATION SYSTEM AND METHOD FOR RESOURCE ALLOCATION - A base station in a mobile communication system includes a scheduling unit generating downlink grant information indicating that downlink radio resources should be allocated to not more than a first multiplex number of user devices; and a transmission unit transmitting control signals containing the downlink grant information and data signals mapped to the radio resources specified by the downlink grant information, wherein, when less than the first multiplex number and not less than a second multiplex number being less than the first multiplex number, of user devices that receive periodically generated periodic data as data signals exist, and user devices that receive non-periodically generated non-periodic data as data signals exist, the scheduling unit generates downlink grant information indicating that the downlink radio resources should be allocated to the second multiplex number of user devices receiving the periodic data and the user devices receiving the non-periodic data. | 11-14-2013 |
20130308592 | BASE STATION IN MOBILE COMMUNICATION SYSTEM AND RESOURCE ASSIGNMENT METHOD - A base station in a mobile communication system includes: a quality information obtaining unit configured to obtain quality information indicating a radio channel state of a user apparatus; an assignment period selection unit configured to select an assignment period corresponding to the quality information of the user apparatus from a predetermined correspondence relationship between each of a plurality of choices of assignment periods for assigning radio resources to periodic data that occurs periodically and a value of quality information indicating a radio channel state; a scheduling unit configured to determine radio resources to be assigned to the user apparatus in the assignment period that is selected; and a radio communication unit configured to communicate, by radio, user data including periodic data of the user apparatus by using the radio resources determined by the scheduling unit. | 11-21-2013 |
20130315182 | BASE STATION AND RESOURCE ALLOCATION METHOD OF MOBILE COMMUNICATION SYSTEM - A base station of a mobile communication system includes a scheduler that generates uplink grant information indicating that uplink radio resources are allocated to less than or equal to a first multiplexing number of units of user equipment, a transmitter that transmits a control signal including the uplink grant information to the user equipment, and a receiver that receives an uplink signal which is transmitted by the user equipment. When a second multiplexing number being less than the first multiplexing number or more units of the user equipment exist which transmit periodically generated periodic data, and when the user equipment exists which transmits non-periodic data generated at non-periodic timing, the scheduler generates the uplink grant information indicating that the uplink radio resources are allocated to the second multiplexing number of the units of the user equipment that transmit periodic data and to the user equipment that transmits non-periodic data. | 11-28-2013 |
20150017970 | RADIO BASE STATION APPARATUS, RADIO BASE STATION CONTROLLER, AND TRANSITION CONTROL METHOD - A radio base station apparatus includes a count retrieval unit configured to retrieve a call origination/reception count and a handover count within a predetermined time interval, an idle transition timer value controller configured to adjust an idle transition timer value representing a time period from completion of communication with a mobile station until the mobile station is caused to transition to an idle mode based on the retrieved call origination/termination count and the retrieved handover count, and an idle transition controller configured to cause the mobile station to transition to the idle mode based on the adjusted idle transition timer value. | 01-15-2015 |
Patent application number | Description | Published |
20140235256 | RADIO COMMUNICATION SYSTEM, RADIO BASE STATION APPARATUS, MACHINE COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD - The present invention is designed to make it possible to reduce the cost required for a machine communication terminal when the network domain of the machine communication system employs an LTE system. With the radio communication method of the present invention, a radio base station apparatus allocates downlink signals to a machine communication terminal in a predetermined cycle and transmits the allocated downlink signals to the machine communication terminal, and the machine communication terminal receives downlink signals from the radio base station apparatus in the predetermined cycle and demodulates the downlink signals received in the predetermined cycle. | 08-21-2014 |
20140248883 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - The present invention enables to stop communication in a particular cell without having an impact on a mobile station UE being in a standby state. A mobile communication method according to the present invention includes a step A in which a radio base station eNB#A leads a mobile station UE being in a standby state in a cell A, which is covered by the radio base station eNB#A, to be in a standby state in a complementing cell (cells B to G) which complements coverage of the cell A, and a step B in which the radio base station eNB#A stops communication in the cell A. | 09-04-2014 |
20150024805 | MOBILE STATION - In order to suppress an increase in signal quantity attributed to repetition of transition to a “Preservation state” and return to an “Active state” when multiple applications are operated independently, a mobile station (UE) of the invention includes: a management unit ( | 01-22-2015 |
20150036651 | RADIO COMMUNICATION TERMINAL, BASE STATION APPARATUS, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD - The present invention is designed to provide a radio communication terminal, a base station apparatus, a radio communication system and a radio communication method which can reduce the cost to be required for an MTC terminal when the LTE system is employed in the network domain of a machine communication system. A radio communication terminal according to the present invention is a radio communication terminal that performs machine communication via a base station apparatus of a radio communication system that is operated such that a frequency becomes the first band at a maximum, depending on the performance which a communication device supports, and has a receiving section that has receiving performance to be able to support the first band, and that decodes the entire band of the first band at least with respect to a time domain where a downlink control channel is allocated, and a transmission section that has transmission performance to be able to support a second band having a narrower bandwidth than the first band, and that allocates an uplink control channel and an uplink data channel to the second band. | 02-05-2015 |
Patent application number | Description | Published |
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 |
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 |