Patent application number | Description | Published |
20100046360 | WIRELESS COMMUNICATION METHOD, RECEIVING METHOD, AND WIRELESS COMMUNICATION DEVICE - A wireless communication method, comprising: allocating, by a base station device, elements of a sequence having an index indicative of a communication parameter to synchronization channel symbols; generating, by the base station device, a synchronization channel while maintaining symmetry of the sequence; transmitting, by the base station device, signals including the synchronization channel; receiving the signals by a mobile station device, correcting, by the mobile station device, the signals based on the symmetry of the sequence; and extracting, by the mobile station device, the communication parameter. | 02-25-2010 |
20100222050 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, AND CELL SEARCH METHOD - There are provided a base station apparatus, a mobile station apparatus, and a cell search method capable of reducing the circuit scale of the mobile station apparatus and a calculation amount by optimizing information distribution to a primary synchronization channel (P-SCH) and a secondary synchronization channel (S-SCH). The base station apparatus transmits the P-SCH and the S-SCH as synchronization channels. The base station apparatus is equipped with an SCH signal generation unit that multiplies the S-SCH by a sequence according to a cell type of the base station apparatus. | 09-02-2010 |
20100329189 | BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM - A synchronization channel control unit halts generation of a synchronization channel signal. A signal control unit halts generation of signals other than the synchronization channel signal after the synchronization channel control unit halts generation of the synchronization channel signal. | 12-30-2010 |
20110013592 | MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - A mobile communication system includes a mobile station device and a base station device. The base station device includes a cell identification information transmission unit which transmits cell identification information of base station devices transmitting radio signals of the same synchronization channel, to the mobile station device when there are at least two base station devices transmitting radio signals of the same synchronization channel within a predetermined communication area. The mobile station device includes a measurement result transmission unit which performs a measurement process based on the cell identification information of the base station devices and transmits the measurement result acquired by the measurement process to the base station device. | 01-20-2011 |
20110039551 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - A mobile communication system including a mobile station device and a base station device, wherein the mobile station device includes: a reception quality measurement unit which measures reception qualities based on signals transmitted from neighboring base station devices; a determination unit which determines a base station device with which the mobile station device communicates, based on a service tried to receive by the mobile station device and the reception qualities measured by the reception quality measurement unit; and a communication unit which communicates with the base station device determined by the determination unit. | 02-17-2011 |
20110177813 | SMALL BASE STATION APPARATUS, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A procedure when a mobile station apparatus accesses a CSG cell in which it is unregistered is defined and a procedure based on the definition is performed. A small base station apparatus applied to a mobile communication system, receives a originated call request message including a user identifier and priority information from a camping mobile station apparatus, determines whether or not to permit the originated call request of the mobile station apparatus, based on the user identifier and the priority information, and transmits the determination result to the mobile station apparatus. In addition, the small base station apparatus permits the originated call request, if the user identifier included in the originated call request message of the mobile station apparatus indicates that the mobile station apparatus is registered. | 07-21-2011 |
20110206032 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - By changing a scrambling code to be multiplied with a secondary synchronization channel for a different sub-frame number, the number of codes required to be retained in a mobile station apparatus is reduced and also a circuit scale and a computation amount thereof are reduced, while an effect of causing interference from a neighboring cell to be random is being maintained. There are provided a primary synchronization channel generation unit ( | 08-25-2011 |
20110256868 | BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication system which performs communication between a base station device configuring at least one cell and a mobile station device, wherein: the base station device includes: a synchronization signal generation unit which generates a synchronization signal corresponding to a cell identity for identifying a cell; and a transmission unit which generates a first transmission signal including the synchronization signal using a first parameter obtained from the cell identity, generates a second transmission signal excluding the synchronization signal using a second parameter obtained from a virtual cell identity different from the cell identity, transmits the first transmission signal using a first frequency band, and transmits the second transmission signal via a second frequency band different from the first frequency band. The mobile station device includes: a reception unit which receives a first reception signal including the synchronization signal using the first parameter obtained from the cell identity via the first frequency band and receives a second reception signal using the second parameter obtained from the virtual cell identity via the second frequency band. | 10-20-2011 |
20110280189 | BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - To keep PAPR low even when the same physical cell ID is used in each component carrier, a base station apparatus | 11-17-2011 |
20130250863 | BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication system which performs communication between a base station device configuring at least one cell and a mobile station device, wherein: the base station device includes: a synchronization signal generation unit which generates a synchronization signal corresponding to a cell identity for identifying a cell; and a transmission unit which generates a first transmission signal including the synchronization signal using a first parameter obtained from the cell identity, generates a second transmission signal excluding the synchronization signal using a second parameter obtained from a virtual cell identity different from the cell identity, transmits the first transmission signal using a first frequency band, and transmits the second transmission signal via a second frequency band different from the first frequency band. The mobile station device includes: a reception unit which receives a first reception signal including the synchronization signal using the first parameter obtained from the cell identity via the first frequency band and receives a second reception signal using the second parameter obtained from the virtual cell identity via the second frequency band. | 09-26-2013 |
20140044048 | BASE STATION DEVICE, MOBILE STATION DEVICE, COMMUNICATION SYSTEM, COMMUNICATION METHOD, AND COMMUNICATION PROGRAM - A base station (BS) that changes a state of the BS from a first state to a second state, wherein the first state being a state in which a sector of the BS is not switched off, transmission from the BS to the sector is able to be received by mobile station devices, and the BS is able to communicate with the mobile station devices in the sector, and the second state being a state in which the sector is switched off, transmission from the BS to the sector is unable to be received by the mobile station device being able to communicate with the BS on the first state device in the sector, the BS is unable to communicate with the mobile station devices being able to communicate with the BS on the first state in the sector and handover into the sector is unable to be performed. | 02-13-2014 |
20140098788 | Mobile Communication System, Base Station Device, Mobile Station Device, and Mobile Communication Method - A mobile communication system includes a mobile station device and a base station device. The base station device includes a cell identification information transmission unit which transmits cell identification information of base station devices transmitting radio signals of the same synchronization channel, to the mobile station device when there are at least two base station devices transmitting radio signals of the same synchronization channel within a predetermined communication area. The mobile station device includes a measurement result transmission unit which performs a measurement process based on the cell identification information of the base station devices and transmits the measurement result acquired by the measurement process to the base station device. | 04-10-2014 |
20140106700 | MOBILE STATION APPARATUS, BASE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A mobile station (MS) includes a first circuitry configured to: select a cell by a cell selection procedure started by the MS, in a case where a radio link failure is detected, wherein said selecting based is on: a criteria of the cell selection procedure; information, used for indicating access restrictions of the MS, the information broadcasted on each cells; and an access class of the MS, wherein the access class being either: a first access class applied for an emergency call, or other access classes applied for other calls; and treat, in a case where the radio link failure is detected upon communication of the first access class, the selected cell as an appropriate cell even in a case where the selected cell is a cell belonging to a first base station not registered in the list; and a second circuitry configured to access the appropriate cell. | 04-17-2014 |
20140148166 | MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE AND MOBILE COMMUNICATION METHOD - A mobile station device that communicates with a base station device, the mobile station device including: a determination unit which determines whether to request the base station device to provide control information of a small base station device accessed by the mobile station device or not; a first transmission unit, when the determination unit determines that the control information is to be requested, which sets information of the small base station device in a control information request message and transmits the control information request message to the base station device; a first reception unit which receives a response message transmitted from the base station device; and a measurement control execution unit which executes measurement control according to control information set in the response message received by the first reception unit. | 05-29-2014 |
20140342737 | SMALL BASE STATION APPARATUS, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A mobile station receives, from the base station, a connection release message instructing release of a connection with the base station. The message including cell information of another cell. And, the cell information includes cell ID information and frequency information for specifying the another cell, broadcast information of the another cell where the broadcast information is applied to the another cell in case where the another cell is detected by performing cell search, and preamble information used for a random access procedure on the another cell. Furthermore, the mobile station applies the broadcast information to the another cell in case where the another cell is detected by the cell search after release of the connection. | 11-20-2014 |
20150289294 | SMALL BASE STATION APPARATUS, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND MOBILE COMMUNICATION SYSTEM - A mobile station apparatus receives an indication and access restriction information, where the indication indicating whether the cell is a Closed Subscriber Group (CSG) cell, where the CSG cell configured to restrict an access of the mobile station apparatus that are not being registered, and where the access restriction information indicating an access restriction related to an emergency call. The mobile station apparatus also transmits a connection request message for the emergency call based on the access restriction information, where the cell on which the mobile station apparatus camped being the CSG cell and where the mobile station apparatus not registering the cell. | 10-08-2015 |
Patent application number | Description | Published |
20110009095 | MOBILE COMMUNICATION SYSTEM, BASE STATION DEVICE, MOBILE STATION DEVICE AND MOBILE COMMUNICATION METHOD - A mobile station device that communicates with a base station device, the mobile station device including: a determination unit which determines whether to request the base station device to provide control information of a small base station device accessed by the mobile station device or not; a first transmission unit, when the determination unit determines that the control information is to be requested, which sets information of the small base station device in a control information request message and transmits the control information request message to the base station device; a first reception unit which receives a response message transmitted from the base station device; and a measurement control execution unit which executes measurement control according to control information set in the response message received by the first reception unit. | 01-13-2011 |
20120182921 | WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, AND COMMUNICATION METHOD - To perform MBMS transmission capable of effective utilization of resources without increasing load in a mobile station apparatus. In a wireless communication system including a base station apparatus and mobile station apparatuses to provide an MBMS (Multimedia Broadcast Multicast Service), the base station apparatus transmits a message for aggregating the number of mobile station apparatuses requesting an MBMS to a mobile station apparatus being served, and, among the mobile station apparatuses, the mobile station apparatus requesting an MBMS adds intra-cell location information of its own to a response message to the message and transmits the response message added with the intra-cell location information to the base station apparatus. | 07-19-2012 |
20130064173 | RELAY NODE AND MOBILE TELECOMMUNICATIONS SYSTEM - A relay node operable to maintain an access link to a UE and a backhaul link to a D-eNB, wherein each of access link and backhaul links are controlled by separate states. The separate states may be independent from one another. The backhaul link consists of at least two states: the first state and the second state of backhaul link. In the first state, a relay node monitors signals from D-eNB continuously. In the second state, a relay node monitors signal from D-eNB discontinuously. The access link consists of at least two states: the first state and the second state of access link. In the first state, a relay node transmits common control signals. In the second state, a relay node can pause the transmission of common control signals or transmit common control signals in longer period than in the first state of access link (DTX). | 03-14-2013 |
20130095838 | MOBILE STATION APPARATUS, COMMUNICATION SYSTEM, BASE STATION APPARATUS, CELL RESELECTION METHOD, CONTROL PROGRAM OF MOBILE STATION APPARATUS, AND INTEGRATED CIRCUIT - Efficient cell reselection taking the continuity of MBMS service into consideration is enabled. A communication system includes a base station apparatus managing a cell capable of providing a multimedia broadcast multicast service, and a mobile station apparatus belonging to a group of access-restricted cells, and the mobile station apparatus selects the access-restricted cell from the serving cell capable of providing the multimedia broadcast multicast service. The base station apparatus periodically transmits multimedia broadcast multicast service information to the mobile station apparatus (S | 04-18-2013 |
20130286929 | RELAY STATION DEVICE, BASE STATION DEVICE, COMMUNICATION SYSTEM AND COMMUNICATION METHOD - In a communication system including a base station device and a relay station device, the base station device notifies the relay station device of the identifier of an MBSFN area and whether the subframe used by the service of the identifier of the MBSFN area should be set up in the MBSFN subframes, and, the relay station device, based on the identifier of the MBSFN area held thereby and the information on the subframe used by the service of the identifier of the MBSFN area, controls whether the subframe used by the service of the identifier of the MBSFN area, notified from the base station device, should be included in the MBSFN subframes thereof, based on a notice as to whether the subframe used by the service of the identifier of the MBSFN area is set up in the MBSFN subframes. | 10-31-2013 |
20140029595 | COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, RANDOM ACCESS PROCESSING METHOD, AND INTEGRATED CIRCUIT - A base station device uses a downlink control channel and instructs a mobile station device to perform a random access procedure. The mobile station device switches, according to whether or not random access parameters are included in parameters of a secondary cell that has been allocated to the mobile station device, between a first random access procedure in which information in a carrier indicator field included in the downlink control channel is not used for selection of a cell in which a random access procedure is performed, and a second random access procedure in which information in the carrier indicator field included in the downlink control channel is used for selection of a cell in which a random access procedure is performed. | 01-30-2014 |
20140194126 | MOBILE STATION, BASE STATION, AND METHOD FOR MANAGING SYNCHRONIZATION STATE - A synchronization state is efficiently managed in a mobile station to which cells are allocated. A base station notifies the mobile station of information about whether or not a transmission timing before a handover for each of cell groups of the mobile station is to be applied after the handover. The mobile station sets whether or not the transmission timing adjusted for each cell group is to be applied after the handover, on the basis of the received information. | 07-10-2014 |
20150036574 | TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION SYSTEM, CONTROL METHOD, AND INTEGRATED CIRCUIT - The present invention provides techniques related to a terminal apparatus, base station apparatus, communication system, control method, and integrated circuit for performing efficient transmission and reception control between a mobile station apparatus and a base station apparatus to thereby reduce power consumption and improve radio resource utilization. The terminal apparatus sends capability information indicating whether notification of a state relating to power consumption of the terminal apparatus is possible or not to the base station apparatus, and upon receiving a parameter indicating start of determination on the state relating to the power consumption of the terminal apparatus from the base station apparatus, determines the state relating to power consumption based on the current communication state configurations of the terminal apparatus and sends state information representing the result of the determination on the state relating to power consumption to the base station apparatus. | 02-05-2015 |
20150050938 | TERMINAL APPARATUS, BASE STATION APPARATUS, COMMUNICATION SYSTEM, RADIO RESOURCE REQUESTING METHOD AND INTEGRATED CIRCUIT - Provided are a terminal apparatus, a base station apparatus, a communication system, a radio resource requesting method, and an integrated circuit that can improve efficiency of radio resource use by efficiently performing a radio resource request control between a mobile station apparatus and the base station apparatus. The base station apparatus configures a transmission parameter of a control channel used in the radio resource request and a parameter for determining a transmission state of the control channel used in the radio resource request in the terminal apparatus. The terminal apparatus transmits a message related to a permission to change the transmission parameter of the control channel used in the radio resource request to the base station apparatus on the basis of the transmission state of the control channel used in the radio resource request. | 02-19-2015 |
20150124731 | COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, MEASUREMENT METHOD, AND INTEGRATED CIRCUIT - In a communication system in which a base station apparatus notifies a mobile station apparatus of a measurement configuration indicating a configuration of measurement using a reference signal, in the measurement configuration, there are at least a first measurement configuration to carry out measurement using a cell-specific reference signal and a second measurement configuration to carry out measurement using a channel state information reference symbol, and the mobile station apparatus determines whether the measurement configuration is the first measurement configuration or the second measurement configuration based on the measurement configuration notified from the base station apparatus. | 05-07-2015 |
20150139005 | COMMUNICATION SYSTEM, BASE STATION APPARATUS, MOBILE STATION APPARATUS, MEASUREMENT METHOD, AND INTEGRATED CIRCUIT - A base station apparatus configures, for each of configurations for channel state information reference signals included in a measurement configuration, a measurement offset to offset a result of measurement using the channel state information reference signal, based on the purpose of measurement. A mobile station apparatus adds the corresponding measurement offset included in the measurement configuration to a result of measuring each of the channel state information reference signals and judges whether a condition of a report configuration is satisfied. | 05-21-2015 |
20150271809 | TERMINAL APPARATUS, BASE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM, CONTROL METHOD AND INTEGRATED CIRCUIT - A terminal apparatus has a communication protocol stack having a hierarchical structure and communicates with a base station apparatus through a plurality of cells. When a first layer of the communication protocol stack receives data from the base station apparatus, the first layer receives uplink grant data from the base station apparatus, the first layer notifies a second layer of the uplink grant and information of cells to which the uplink grant is transmitted, a third layer notifies the second layer of logical channel information for classifying logical channels corresponding to the respective cells, and the second layer distributes the data of the logical channels to the respective cells on the basis of the logical channel information, the uplink grant, and the information of the cells to which the uplink grant is transmitted. | 09-24-2015 |
Patent application number | Description | Published |
20090135787 | MOBILE COMMUNICATION METHOD, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION SYSTEM - A mobile station device of the present invention includes: a request-signal generating unit that sets a plurality of channel quality indications to be included in a report according to a given pattern to request gap generation for suspending communication for a handover and monitoring another base station device; a gap-generation-request-signal transmitting unit that transmits the report of the channel quality indications having the given pattern to the base station device; a control-signal receiving unit that receives, from the base station device, a control signal indicative of suspension or resumption of the report during a period in which the report is transmitted; and a transmission control unit that controls the gap generation according to the control signal. | 05-28-2009 |
20090168662 | MOBILE COMMUNICATION SYSTEM, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION METHOD - A mobile communication system of the present invention generates a gap section based on a channel quality indication, and determines the timing or the frequency of generating the gap section based on a given parameter between the base station device and the mobile station device. | 07-02-2009 |
20090209256 | MOBILE COMMUNICATION SYSTEM, AND MOBILE UNIT, BASE STATION UNIT AND METHOD THEREFORE - In mobile communication system having a plurality of mobile traits and a plurality of base station units, the system of the present invention is characterised in that the base station unit has a gap period length setting section for setting the length of the gap period for the mobile unit depending on the type of the radio access technology to be monitored by the mobile unit. | 08-20-2009 |
20120093018 | COMMUNICATION TERMINAL APPARATUS, COMMUNICATION CONTROL APPARATUS, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - To perform scheduling for improving throughput, while suppressing control information amounts notified from communication terminal apparatuses. A communication terminal apparatus ( | 04-19-2012 |
20120314805 | WIRELESS TRANSMITTING APPARATUS, WIRELESS RECEIVING APPARATUS, WIRELESS COMMUNICATION SYSTEM, WIRELESS TRANSMITTING METHOD AND WIRELESS RECEIVING METHOD - To enable shared control information to be demodulated without requiring advance information on a MIMO block or non-MIMO block prior to demodulation of the shared control information of the block, and further enable the shared control information to be demodulated early. A wireless transmitting apparatus which performs wireless transmission in MIMO or non-MIMO for each radio frame comprised of a block or a plurality of blocks, and has mapping sections ( | 12-13-2012 |
20140105142 | Communication Method - A communication method of a terminal apparatus that performs communications with a base station using a plurality of frequency channels, comprising the steps of: measuring reception quality; selecting part of frequency channels as selection channels from the plurality of frequency channels; generating first information for specifying the selection channels, second information indicating reception quality of the selection channels, and third information indicating one reception quality of whole of the plurality of frequency channels, and transmitting each of the first, second and third information to the base station, wherein the second information indicating the reception quality is information for specifying at least one of a modulation scheme and a coding rate. | 04-17-2014 |
20140348016 | METHOD, MOBILE STATION DEVICE, BASE STATION DEVICE, AND MOBILE COMMUNICATION SYSTEM FOR GAP-GENERATION DETERMINATION - A mobile station device that communicates with a base station device. The mobile communication receives, from the base station device, a control signal for permitting the mobile station device to perform monitoring neighboring cell. The mobile station device also generates a gap based on one length of plural lengths, the gap being used in the monitoring, the one length corresponding to a measurement type of a neighboring cell according to a predetermined rule, the plural lengths being common with the base station, and the predetermine rule being common with the base station. | 11-27-2014 |