Patent application number | Description | Published |
20110032848 | MOBILE COMMUNICATIONS SYSTEM, BASE STATION APPARATUS, USER APPARATUS AND METHOD - A base station apparatus used for a FDD mobile communications system which uses at least a predetermined frequency bandwidth is disclosed. The base station apparatus includes a control unit which provides an instruction signal which at least indicates a frequency band used in wireless communications; and a unit which wirelessly communicates with a user apparatus according to the instruction signal, wherein, if the base station apparatus belongs to a predetermined border area between mobile communications systems, an instruction signal which indicates that use of one part of the predetermined frequency band is permitted, but use of another part is prohibited is provided by the control unit, and, if the base station apparatus belongs to a predetermined non-border area, an instruction signal which indicates that use of one part and use of the other part are permitted. | 02-10-2011 |
20130308540 | COMMUNICATION CONTROL METHOD, MOBILE COMMUNICATION SYSTEM AND MOBILE TERMINAL APPARATUS - The present invention is designated to reduce the deterioration of transmission characteristics upon data transmission, even when soft buffer memory for retransmission control is not sufficiently secured in a mobile terminal apparatus. The present invention provides the steps of, in a base station apparatus (eNB), performing channel coding of information bits (ST | 11-21-2013 |
20140192758 | COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE TERMINAL APPARATUS AND COMMUNICATION METHOD - The present invention is designed to use frequency resources effectively, even in the situation where a plurality of mobile terminal apparatuses of varying capabilities coexist. A communication system, in which a mobile terminal apparatus ( | 07-10-2014 |
20140211733 | MOBILE COMMUNICATION METHOD AND MOBILE STATION - A mobile communication method and a mobile station appropriately use equivalent band indicators. The mobile communication method includes: a step of broadcasting, by a radio base station BS, a band indicator indicating a band 19 and an equivalent band indicator indicating bands 5 and B26 overlapping the band 19; and a step of performing, by a mobile station UE, an connection process in a band 5 or B26 when the mobile station is not compatible with the band 19 indicated by the received first band indicator and is compatible with the band 5 or B26 indicated by the received equivalent band indicator. | 07-31-2014 |
20140213268 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - In order to appropriately set CA, a mobile communication method according to the present invention includes the steps where: a mobile station UE notifies a radio base station eNB of a “CA band combination” that is supported by the mobile station UE among “CA band combinations”; and the radio base station eNB determines whether or not to set carrier aggregation for the mobile station UE on the basis of whether or not “NS” corresponding to a band used in carrier aggregation is included in the “NS” specified by the received “CA band combination”. | 07-31-2014 |
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 |
20140269601 | MOBILE COMMUNICATION METHOD AND RADIO BASE STATION - The present invention enables, without defining a new band, use of a network signaling value for multi-cluster communication in an existing band where no network signaling value has been defined. A mobile communication method according to the present invention includes: a step A of notifying, by a radio base station eNB, a mobile station UE of a network signaling value through “RRC Reconfiguration,” the mobile station UE being performing single cluster communication using one component carrier in a supported band; and a step B of reducing, by the mobile station UE, transmission power in the single cluster communication on the basis of the network signaling value. | 09-18-2014 |
20140286201 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION, AND MOBILE STATION - A duplexer D | 09-25-2014 |
20140293947 | RADIO COMMUNICATION SYSTEM, USER TERMINAL AND RADIO COMMUNICATION METHOD - To ensure stable operation of a user terminal even in the case where the user terminal is instructed to transmit uplink signals at different transmission timings with a plurality of component carriers, in a radio communication system provided with a radio base station apparatus that indicates transmission timings of uplink signals for each component carrier, and a user terminal that transmits an uplink signal at a transmission timing set based on transmission timing information indicated from the radio base station apparatus and the like, it is a feature that the radio base station apparatus indicates different transmission timing information in a plurality of component carriers, and that the user terminal avoids simultaneous transmission of uplink signals in the case of performing communications using a plurality of contiguous component carriers. | 10-02-2014 |
20140294125 | RECEIVER - Appropriate reception processing is performed using a CRS-based estimation method for a covariance matrix R | 10-02-2014 |
20140307838 | RECEIVER - The IRC receiver 10 according to the present invention includes a channel estimation unit 11 that performs a channel estimation process so as to estimate a channel matrix H, a transmission weight matrix generation unit 13 that generates a transmission weight matrix W | 10-16-2014 |
20140314189 | RECEIVER - Provided is a receiver to improve the accuracy of estimating a covariance matrix R | 10-23-2014 |
20150016372 | RADIO BASE STATION AND MOBILE STATION - A mobile station UE according to the present invention includes a controller unit | 01-15-2015 |
20150023268 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION, AND MOBILE STATION - An objective is to improve communication quality by reducing an insertion loss or the like of a diplexer inserted to reduce a leakage from an uplink band to a downlink band in different bands. A mobile communication method according to the present invention includes the steps of: transmitting simultaneous transmission capability information from a mobile station UE to a radio base station eNB, the simultaneous transmission capability information indicating whether or not the mobile station UE can transmit uplink data signals via multiple carriers in the same sub-frame while performing uplink CA; performing scheduling for the mobile station UE by the radio base station eNB on the basis of the simultaneous transmission capability information; and performing communication by the mobile station UE on the basis of the scheduling information. | 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 |
20150103741 | MOBILE STATION - A mobile station UE according to the present invention includes: a managing unit | 04-16-2015 |
20150103762 | MOBILE COMMUNICATION METHOD, RADIO BASE STATION, AND MOBILE STATION - The present invention aims to reduce an insertion loss or the like caused by a diplexer inserted to reduce leakage from an uplink bandwidth to a downlink bandwidth of different bands, and thereby to improve a communication quality. A mobile communication method according to the present invention includes the steps of: transmitting simultaneous transmission capability information from a mobile station UE to a radio base station eNB, the simultaneous transmission capability information indicating whether or not the mobile station UE is able to transmit uplink data signal via multiple carriers in multiple bands within a same sub-frame in performing uplink CA; performing scheduling for the mobile station UE by the radio base station eNB based on the simultaneous transmission capability information; and performing communications by the mobile station UE based on the scheduling information. | 04-16-2015 |
20150117404 | MOBILE STATION AND RADIO BASE STATION - A mobile station (UE) according to the present invention includes a control unit ( | 04-30-2015 |
20150189641 | MOBILE STATION - To execute appropriate process when “Time-Switched UL CA” is executed and even when transmission of uplink information using a plurality of CCs has been scheduled in a same TTI. A radio base station eNB according to the present invention includes a UL transmission processing unit | 07-02-2015 |
20150195829 | MOBILE STATION - To prevent the occurrence of interference in the uplink when carrying out “Time-Switched UL CA”. A mobile station UE according to the present invention includes a UL transmission processing unit | 07-09-2015 |
20150250004 | RADIO BASE STATION AND MOBILE STATION - An objective is to enable communications properly using an Scell even in a case where a radio base station which transmits “Activate command” and a radio base station which manages an Scell are different when “Inter-site CA” is performed. A radio base station eNB #1 according to the invention includes a transmission unit 12 configured to transmit an “Activate command” which is a command to activate a cell # B to a mobile station UE and thereafter notify a radio base station eNB #10 that the cell # B is activated. | 09-03-2015 |
20150264679 | MOBILE STATION AND RADIO BASE STATION - In CA performed using multiple cells supporting PUCCH, which downlink cell feedback information is to be transmitted through which uplink cell PUCCH is determined. A mobile station UE according to the invention includes a management unit | 09-17-2015 |
20150289218 | MOBILE STATION - Appropriate CC-to-TAG mapping is configured when “UL CA” is performed. A mobile station UE of the invention includes: a management unit | 10-08-2015 |
20150296464 | USER EQUIPMENT AND METHOD - One objective of the present invention is to determine an allowed range of transmission power in relaxation of the transmission power of a user equipment. One aspect of the present invention relates to a user equipment comprising: a transmission power lower bound value calculation unit configured to calculate a lower bound value of transmission power of the user equipment by applying a power relaxation factor for relaxing the transmission power; a transmission power upper bound value calculation unit configured to calculate an upper bound value of the transmission power; an allowed transmission power range determination unit configured to calculate tolerances of the calculated lower bound value and upper bound value to compensate for the applied power relaxation factor and determine an allowed range of the transmission power based on the calculated tolerances; and a transmission power determination unit configured to determine the transmission power within the determined allowed range of transmission power, wherein the allowed transmission power range determination unit determines the allowed range of transmission power to compensate for the applied power relaxation factor. | 10-15-2015 |
20150296487 | RADIO COMMUNICATION SYSTEM, USER TERMINAL AND RADIO COMMUNICATION METHOD - The present invention is designed to provide a radio communication system, a user terminal and a radio communication method that make it possible to monitor communication quality adequately even when a new radio resource structure is employed. A radio communication system is provided, which transmits downlink control information from a radio base station to a user terminal by using an enhanced downlink control channel that is frequency-division-multiplexed with a downlink shared data channel, and which also monitors downlink quality based on the received quality of downlink reference signals that are transmitted from the radio base station to the user terminal, and, in this radio communication system, the user terminal determines radio link failures by comparing the received quality of the downlink reference signals transmitted from the radio base station, against one or both of first criteria, which are constituted of two thresholds that correspond to predetermined block error rates of a downlink control channel, and second criteria, which are constituted of two thresholds that are different from the two thresholds of the first criteria. | 10-15-2015 |
20150304915 | MOBILE STATION AND CONTROL METHOD - A mobile station for communication using carrier aggregation includes a secondary cell state management unit configured to manage whether a state of a secondary cell is an activation state or a deactivation state; and a transmission control unit configured to stop transmission of uplink control information on a physical uplink control channel in a first secondary cell, when the state of the first secondary cell managed by the secondary cell state management unit is the deactivation state at a timing of transmission of the physical uplink control channel in the first secondary cell. | 10-22-2015 |
20150304927 | MOBILE COMMUNICATION METHOD, RADIO ACCESS NETWORK APPARATUS, AND MOBILE STATION - Appropriate “idle mode cell reselection” is achieved by changing a threshold used to perform “idle mode cell reselection” between a case of performing RSRQ measurement in six resource blocks and a case of performing “Wideband RSRQ measurement.” A mobile communication method according to the present invention includes a step of causing a radio base station eNB or a radio network controller RNC to broadcast not only existing parameters used to perform cell reselection processing based on a result of the RSRQ measurement in six resource blocks, but also wideband parameters used to perform “idle mode cell reselection” based on a measurement result of “Wideband RSRQ measurement.” | 10-22-2015 |
20150312922 | USER EQUIPMENT AND TRANSMISSION CONTROL METHOD - A user equipment has a transmission and reception unit configured to transmit and receive a radio channel to/from a base station via multiple cells configured by carrier aggregation, a simultaneous transmission availability determination unit configured to, in response to an occurrence of an event to transmit an uplink control channel in the multiple cells simultaneously, determine whether the uplink control channel can be simultaneously transmitted in the multiple cells, and a transmission control unit configured to, if the uplink control channel can be simultaneously transmitted in the multiple cells, instruct the transmission and reception unit to transmit the uplink control channel in the multiple cells simultaneously, and if the uplink control channel cannot be simultaneously transmitted in the multiple cells, control transmission of the uplink control channel in accordance with a transmission priority. | 10-29-2015 |
20150327230 | USER TERMINAL RADIO BASE STATION AND RADIO COMMUNICATION METHOD - In order to control feedback control information in uplink transmission appropriately even when using carrier aggregation in HetNet, the present invention provides a user terminal that is able to communicate with a plurality of radio base stations having overlapping coverage areas by using carrier aggregation, the user terminal comprising: a reception section that receives downlink shared channel signals using component carriers of a primary cell and a secondary cell; a generating section that generates transmission acknowledgement signals in response to the downlink shared channel signals; and an allocating section that allocates the transmission acknowledgement signals to predetermined uplink control channel resources, wherein the allocating section allocates the transmission acknowledgement signals to either or both of uplink control channel resources of the primary cell and uplink control channel resources of the secondary cell in accordance with contents of the transmission acknowledgement signals and/or an uplink control channel format. | 11-12-2015 |
20150334603 | MOBILE STATION AND RADIO BASE STATION - An objective is to enable a radio base station eNB to recognize a time point when a transition of an Scell to an active state is completed. A mobile station UE according to the invention includes a transmission unit | 11-19-2015 |
20150334699 | USER APPARATUS AND UPLINK CONTROL INFORMATION TRANSMISSION METHOD - A user apparatus in a mobile communication system in which carrier aggregation is performed using a plurality of cells, including: a control unit configured to determine whether a physical uplink shared channel is set in the user apparatus at a transmission timing of uplink control information, and to determine to transmit the uplink control information by using the physical uplink shared channel when the physical uplink shared channel is set; and a transmission unit configured to transmit the uplink control information to a radio base station using the physical uplink shared channel, wherein the control unit determines, when a physical uplink shared channel is set in a first cell in the plurality of cells, to transmit the uplink control information by using the physical uplink shared channel, and the control unit determines, when no physical uplink shared channel is set in the first cell, to transmit the uplink control information by using a physical uplink shared channel in a second cell. | 11-19-2015 |
20150341131 | USER APPARATUS, BASE STATION, INTERFERENCE REDUCING METHOD AND INTERFERENCE REDUCING CONTROL INFORMATION NOTIFICATION METHOD - A user apparatus, in a radio communication system including a plurality of base stations, including a reception unit configured to receive, from a connecting base station, control information to be used for reducing an interference signal sent from an interference base station for the user apparatus; and an interference reducing unit configured to reduce the interference signal by using the control information to obtain a desired signal sent from the connecting base station. | 11-26-2015 |
20150350882 | MOBILE STATION AND RADIO BASE STATION - “Inter-site CA” using CCs under different radio base stations eNB in an asynchronous state can be performed appropriately. A mobile station UE of the present invention comprises a transmission unit | 12-03-2015 |
20150351104 | MOBILE STATION, RECEPTION METHOD, BASE STATION, AND METHOD OF CONTROLLING AN OPERATION OF A RECEIVER - In one aspect of the present invention, a mobile station includes a receiver type control signal reception unit configured to receive a receiver type control signal indicating whether to allow an operation of a receiver in association with at least one receiver type; and a receiver configuration unit configured to configure the operation of the receiver based on the received receiver type control signal. | 12-03-2015 |
20150372777 | USER APPARATUS, BASE STATION, INTERFERENCE REDUCING METHOD AND INTERFERENCE REDUCING CONTROL INFORMATION NOTIFICATION METHOD - A user apparatus in a radio communication system including a plurality of base stations, including a reception unit that receives, from a connecting base station, control information to be used for reducing a signal of a control channel, that causes interference, sent from an interference base station for the user apparatus, and an interference reducing unit that reduces the signal of the control channel that causes the interference by using the control information to obtain a desired signal sent from the connecting base station. | 12-24-2015 |
20150373586 | USER EQUIPMENT, BASE STATION AND METHOD - Some techniques for promptly assigning uplink dedicated resources in inter-site or inter-eNB carrier aggregation are disclosed. One aspect of the present invention relates to a user equipment including a transmission and reception unit configured to use radio resources to communicate with multiple base stations, a resource management unit configured to manage the radio resources and a cell type determination unit configured to determine a type of a cell providing the radio resources, wherein when the resource management unit detects occurrence of a release trigger for assigned uplink dedicated resources, the cell type determination unit determines a type of a cell providing the uplink dedicated resources and retains or releases the uplink dedicated resources depending on the determined cell type. | 12-24-2015 |
20150373684 | BASE STATION AND METHOD - Techniques for assigning uplink dedicated resources in inter-site or inter-eNB carrier aggregation promptly are disclosed. One aspect of the present invention relates to a base station including a transmission and reception unit configured to use radio resources to communicate with a user equipment and a resource management unit configured to manage the radio resources, wherein the resource management unit comprises a pooling information storage unit configured to store pooling information indicative of radio resources reserved for the base station by a non-anchor base station in inter-eNB carrier aggregation, and the resource management unit autonomously assigns the radio resources indicated in the pooling information to the user equipment. | 12-24-2015 |
20160056878 | USER APPARATUS AND USER ASSIGNMENT INFORMATION ESTIMATION METHOD - A user apparatus that is used in a radio communication system including a plurality of base stations, and that includes a function for performing interference reduction based on user assignment in an interference cell, including: interference pattern generation means that generates a plurality of interference patterns each of which is a combination of presence or absence of an interference signal in a given number of interference cells for the user apparatus; reception quality calculation means that calculates a reception quality after interference reduction for each of the plurality of interference patterns generated by the interference pattern generation means; and user assignment information estimation means that determines presence or absence of an interference signal in each interference cell corresponding to an interference pattern based on which the best reception quality is obtained in reception qualities calculated by the reception quality calculation means to be presence or absence of user assignment. | 02-25-2016 |
Patent application number | Description | Published |
20110124374 | BASE STATION APPARATUS AND METHOD - A base station apparatus includes a distribution unit configured to distribute control information on a per-segmented area basis, the segmented area resulting from segmentation of a coverage area into multiple segmented areas, a storage unit configured to store the control information corresponding to the segmented areas, and a determination unit configured to determine a distribution method for each of the segmented areas. The determination unit determines one of a distribution method of periodically distributing the control information corresponding to the segmented areas in the coverage area in charge of the base station apparatus and a distribution method of distributing the control information corresponding to a segmented area requested by a terminal apparatus in response to the requesting by the terminal apparatus. | 05-26-2011 |
20110130164 | BASE STATION, TERMINAL EQUIPMENT, AND METHOD FOR MOBILE COMMUNICATION SYSTEM - A base station includes an internal-area information storing unit storing system information necessary to connect to radio systems in an area to which the base station belongs; an external-area transmission method information storing unit storing external-area transmission method information indicating a method of transmitting a common control signal in an area adjacent to the area to which the base station belongs; and a transmitting unit wirelessly transmitting the common control signal including the system information stored in the internal-area information storing unit or the external-area transmission method information to the terminal equipment. The common control signal including the external-area transmission method information is transmitted at regular or irregular transmission timings. | 06-02-2011 |
20110183703 | BASE STATION APPARATUS, RADIO NETWORK CONTROLLER, AND TERMINAL APPARATUS AND METHOD - A base station apparatus includes a transmitting unit which transmits control information with an area as a unit, which area is in multiple numbers and each of which area is divided from a coverage area; a storing unit which stores control information corresponding to the divided area; and a determining unit which determines an order of distribution for each of the divided areas. The determining unit includes either or both of a unit which randomly determines the order of distribution for each of the divided areas and a unit which determines an order of distribution for distributing the same information with another base station apparatus. | 07-28-2011 |
20110237179 | DISTRIBUTION APPARATUS, TERMINAL APPARATUS, SYSTEM, AND METHOD - A distribution apparatus which distributes to multiple regions includes: a storage unit which stores each of radio communications systems usable for each of the regions; a selecting unit which selects, out of the multiple regions to which the distribution apparatus distributes, first regions in which a radio communications system in operation is the same; and a distribution unit which distributes, based on each of the radio communications system usable for each of the regions that is stored in the storage unit, all or some of information on the radio communications system for each of the first regions selected by the selecting unit. One or multiple radio communications systems are usable in each of the regions. | 09-29-2011 |
20110244903 | DELIVERY SYSTEM, DELIVERY APPARATUS, TERMINAL APPARATUS AND METHOD - A delivery system includes a delivery apparatus for delivering a common control signal to an area having one or more available communication systems and a terminal apparatus for receiving the common control signal transmitted from the delivery apparatus. The common control signal includes system information required to access the communication systems in the area, and the system information includes multiple control information items. The delivery system causes the delivery apparatus to generate a first common control signal commonly used in one or more areas, to receive a delivery request signal from the terminal apparatus requesting to deliver a certain control information item and to generate a second common control signal including the certain control information item to transmit to the terminal apparatus. Criteria to determine which of the control information items is to be included in the first common control signal are updated in accordance with a statistical tendency of the delivery request signals from the terminal apparatuses. | 10-06-2011 |
20110244904 | DELIVERY APPARATUS, TERMINAL APPARATUS, SYSTEM AND METHOD - A delivery apparatus for delivering to multiple areas, wherein one or more radio communication systems are available in each of the areas, includes a storage unit configured to store system information for each of the areas, the system information being required to connect to the available radio communication systems, a detection unit configured to detect a second delivery apparatus for delivering to a portion of the delivery areas of the delivery station and a delivery unit configured to deliver system information for each of the areas as control information, the system information being required to connect to a radio communication system available in the area. If the detection unit detects the second delivery apparatus, the delivery unit delivers system information as the control information, the system information in the storage unit excluding a portion of the system information required to connect to a radio communication system available in an area where the second delivery apparatus is responsible for delivering the control information. | 10-06-2011 |
20110250835 | DISTRIBUTION SYSTEM, DISTRIBUTION APPARATUS, TERMINAL APPARATUS, AND METHOD WHICH DISTRIBUTE A COMMON CONTROL SIGNAL - A distribution apparatus distributes a common control signal to one or more regions with one or more communications system which can be used. The common control signal includes system information required for accessing the communications system of each of the regions. The distribution apparatus has a unit which generates the common control signal of each of the regions, a unit which receives a distribution request signal from a terminal apparatus which requests for distribution of the common control signal, and a unit which transmits the common control signal according to a distribution rule. The distribution rule is updated according to a statistical trend of the distribution request signals received. | 10-13-2011 |