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41. 发明授权

US10064142B2 User apparatus and uplink transmission power information transmission method 有权
公开(公告)号：US10064142B2
公开(公告)日：2018-08-28
申请号：US15303594
申请日：2015-04-14
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Hideaki Takahashi , Kazuki Takeda
IPC分类号： H04B7/00 , H04W52/14 , H04B7/024 , H04W52/34 , H04W52/36 , H04W24/10 , H04L5/00 , H04W76/28 , H04W76/15
CPC分类号： H04W52/146 , H04B7/024 , H04L5/0001 , H04W24/10 , H04W52/34 , H04W52/365 , H04W52/367 , H04W76/15 , H04W76/28
摘要： A user apparatus in a mobile communication system including a first base station and a second base station that perform communication with the user apparatus by inter-base station carrier aggregation, including: a transmission trigger detection unit configured to detect a transmission trigger for transmitting uplink transmission power information in the user apparatus to the first base station or to the second base station; and an uplink transmission power information transmission unit configured to transmit the uplink transmission power information to the first base station or to the second base station based on a transmission trigger detected by the transmission trigger detection unit.

42. 发明授权

US10057930B2 Mobile communication system and user equipment 有权
公开(公告)号：US10057930B2
公开(公告)日：2018-08-21
申请号：US15114195
申请日：2015-02-05
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Kazuki Takeda , Hideaki Takahashi
IPC分类号： H04W76/04 , H04W52/02 , H04L5/14 , H04L12/26 , H04W72/04 , H04W76/28 , H04W84/04
CPC分类号： H04W76/28 , H04L5/14 , H04L43/0864 , H04W52/0216 , H04W52/0229 , H04W72/0413 , H04W72/0446 , H04W84/042 , Y02D70/00 , Y02D70/1262 , Y02D70/1264 , Y02D70/24
摘要： In TDD-FDD carrier aggregation, delay in downlink retransmission timing and UE's battery energy consumption are reduced. In a mobile communication system that performs carrier aggregation using a first component carrier associated with a first cell conducting radio communication in a first duplex mode and a second component carrier associated with a second cell conducting radio communication in a second duplex mode, a cell is provided on which an uplink control channel carrying acknowledgement or negative acknowledgement for the first component carrier and the second component carrier is transmitted, and a user equipment performs discontinuous reception using a timer value corresponding to a duplex mode of said cell on which the uplink control channel is transmitted upon receiving at least one of a first downlink data signal transmitted over the first component carrier and a second downlink data signal transmitted over the second component carrier.

43. 发明授权

US10039149B2 User equipment and uplink data transmission method 有权
公开(公告)号：US10039149B2
公开(公告)日：2018-07-31
申请号：US15112510
申请日：2015-03-05
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Hideaki Takahashi , Wuri Andarmawanti Hapsari
IPC分类号： H04W76/15 , H04W28/08 , H04W80/02 , H04W16/14 , H04W88/06
CPC分类号： H04W76/15 , H04L1/00 , H04W16/14 , H04W28/08 , H04W80/02 , H04W88/06
摘要： User equipment having a dual connectivity function to communicate with multiple base stations simultaneously, comprising: a PDCP (Packet Data Convergence Protocol) layer processing unit configured to generate packet sequences for transmission to respective ones of the multiple base stations from to-be-transmitted uplink data; and a RLC (Radio Link Control) layer processing unit configured to transmit the generated packet sequences to the multiple base stations. The RLC layer processing unit includes: a RLC buffer configured to store packets transmitted from the PDCP layer processing unit and destined for the respective ones of the multiple base stations; RLC entities provided corresponding to respective ones of the multiple base stations, the RLC entities being configured to transmit the packets stored in the RLC buffer to the corresponding base stations; and a RLC entity control unit configured to control the RLC buffer and the RLC entities. The RLC entity control unit has a RLC discard timer configured to count a staying time of the respective packets stored in the RLC buffer, the RLC entity control unit discards a staying packet, for which the RLC discard timer has expired, from the RLC buffer, indicates the PDCP layer processing unit to retransmit the staying packet to the RLC buffer as a packet destined for a different base station, and transmits the staying packet retransmitted from the PDCP layer processing unit from a RLC entity corresponding to the different base station.

44. 发明申请

US20180176934A1 USER APPARATUS AND TIMER CONTROL METHOD 审中-公开
公开(公告)号：US20180176934A1
公开(公告)日：2018-06-21
申请号：US15542119
申请日：2016-02-17
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Kazuki Takeda , Hideaki Takahashi
IPC分类号： H04W72/12 , H04W72/04 , H04W72/08
CPC分类号： H04W72/1231 , H04L5/001 , H04W16/32 , H04W24/10 , H04W72/0446 , H04W72/085 , H04W74/0833 , H04W76/27 , H04W76/28 , H04W88/08 , Y02D70/00
摘要： A user apparatus is provided. The user apparatus communicates with a base station in a mobile communication system. The mobile communication system supports carrier aggregation which includes multiple cells including a first cell and a second cell which uses a TTI different from a TTI of the first cell. The user apparatus includes a communication unit configured to transmit and receive a signal to and from the base station; and a timer control unit configured to, according to a type of a control operation performed by the communication unit, determine a TTI as a unit time for operating a timer used for the control operation. The communication unit performs the control operation by operating the timer by using as a unit time the TTI determined by the timer control unit.

45. 发明申请

US20180167118A1 USER TERMINAL, RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION METHOD 审中-公开
公开(公告)号：US20180167118A1
公开(公告)日：2018-06-14
申请号：US15502574
申请日：2015-08-06
申请人： NTT DOCOMO, INC.
发明人： Yuichi Kakishima , Kazuki Takeda , Satoshi Nagata , Tooru Uchino
IPC分类号： H04B7/06
CPC分类号： H04B7/0602 , H04W16/32 , H04W72/04 , H04W76/15 , H04W88/02
摘要： The present invention is designed to control the antenna selection in a user terminal adequately even when the user terminal connects with a plurality of radio base stations by employing dual connectivity (DC). A user terminal supports communication which uses dual connectivity with a plurality of radio base stations that each configure a cell group formed with one or more cells, and this user terminal has a transmission section that transmits UL signals to one or a plurality of cell groups, and a control section that controls the antenna selection for transmitting the UL signals, and, when antenna selection for a serving cell (UE transmit antenna selection) is configured, the control section controls the antenna selection expecting that the plurality of cell groups are not configured.

46. 发明授权

US09999031B2 Mobile communication method, radio base station, and mobile station 有权
公开(公告)号：US09999031B2
公开(公告)日：2018-06-12
申请号：US14920597
申请日：2015-10-22
申请人： NTT DOCOMO, INC.
发明人： Mikio Iwamura , Tooru Uchino
IPC分类号： H04W72/04 , H04W24/10 , H04W72/12 , H04W92/18
CPC分类号： H04W72/0406 , H04W24/10 , H04W72/0413 , H04W72/1284 , H04W76/14 , H04W92/18
摘要： To further notify the amount of data retained in the transmission buffer used in a communication among a plurality of MOBILE STATIONs to a RADIO BASE STATION, the mobile communication method according to the present invention includes: transmitting, with a MOBILE STATION (UE#1), a BSR (#1) indicating the amount of data retained in a transmission buffer corresponding to a logical channel in a Uu interface to a RADIO BASE STATION (eNB); transmitting, with a MOBILE STATION (UE1), a BSR (#2) indicating the amount of data retained in a transmission buffer corresponding to a logical channel in a Ud interface to the RADIO BASE STATION (eNB); and distinguishing, with the RADIO BASE STATION (eNB), the BSR (#1) from the BSR (#2) based on predetermined information included in the received BSR.

47. 发明申请

US20180139749A1 USER TERMINAL, RADIO BASE STATION AND RADIO COMMUNICATION METHOD 审中-公开
公开(公告)号：US20180139749A1
公开(公告)日：2018-05-17
申请号：US15573310
申请日：2016-05-13
申请人： NTT DOCOMO, INC.
发明人： Kazuki Takeda , Tooru Uchino , Satoshi Nagata , Lihui Wang , Liu Liu , Huiling Jiang
IPC分类号： H04W72/04 , H04L5/00 , H04W72/12
CPC分类号： H04W72/0413 , H04L5/001 , H04L5/0055 , H04L5/0057 , H04W24/10 , H04W72/0446 , H04W72/1284
摘要： According to the present invention, periodic CSI reporting that is suitable for use when the number of component carriers that can be configured per user terminal is expanded more than in existing systems can be implemented. According to the present invention, a user terminal has a transmission section that transmits channel state information periodically, and a control section that controls the transmission of the channel state information, and the control section controls the transmission of a plurality of channel state information using a PUCCH format which can use a plurality of resource blocks and/or which has a smaller spreading factor than the spreading factor of PUCCH format 3.

48. 发明授权

US09973979B2 Mobile communication method and radio base station 有权
公开(公告)号：US09973979B2
公开(公告)日：2018-05-15
申请号：US14888945
申请日：2014-04-11
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Hideaki Takahashi , Satoshi Nagata , Wuri Andarmawanti Hapsari , Kazuki Takeda
IPC分类号： H04W4/00 , H04W36/00 , H04W16/28 , H04W36/08 , H04L1/00 , H04B7/024 , H04W36/04 , H04W28/18 , H04W72/12 , H04W92/20
CPC分类号： H04W36/0044 , H04B7/024 , H04L1/00 , H04L1/1671 , H04L2001/0093 , H04W16/28 , H04W28/18 , H04W36/0055 , H04W36/0061 , H04W36/0072 , H04W36/04 , H04W36/08 , H04W72/12 , H04W92/20
摘要： In a handover procedure between cells under different radio base stations (eNB), “RRC diversity” is implemented. A mobile communication method includes: a step A of transmitting, by a radio base station (eNB #1), “CoMP preparation” to a radio base station (eNB #10); a step B of transmitting, by the radio base station (eNB #10), setting information on a cell (#10) to the radio base station (eNB #1); a step C of conducting, by the radio base station (eNB #1), setting of the mobile station (UE) to perform CoMP transmission-reception; a step D of giving, by the mobile station (UE), the radio base station (eNB #1) notification that radio quality in the cell (#10) satisfies a predetermined condition; and a step E of instructing, by the radio base station (eNB #1), the radio base station (eNB #10) to start scheduling for the mobile station (UE).

49. 发明授权

US09960869B2 Mobile station and radio base station 有权
公开(公告)号：US09960869B2
公开(公告)日：2018-05-01
申请号：US14908565
申请日：2014-07-28
申请人： NTT DOCOMO, INC.
发明人： Hideaki Takahashi , Tooru Uchino , Kengo Yagyu
IPC分类号： H04W8/22 , H04L5/00 , H04J1/08
CPC分类号： H04J1/08 , H04L5/001 , H04W8/22 , H04W36/0055
摘要： In CA performed using three or more frequency bands, whether or not a mobile station UE is capable of performing an inter-frequency measurement without a gap is properly determined. The mobile station UE according to the invention includes a transmission unit 11 configured to transmit “UE Capability” indicating a capability of the mobile station UE to a radio base station eNB. The transmission unit 11 is configured to notify frequency bands in which the mobile station UE is capable of performing an inter-frequency measurement without a gap for each “CA band combination” as the “UE Capability”.

50. 发明授权

US09936471B2 Mobile station for performing component carrier-to-timing advance group mapping 有权
公开(公告)号：US09936471B2
公开(公告)日：2018-04-03
申请号：US14438100
申请日：2013-09-26
申请人： NTT DOCOMO, INC.
发明人： Tooru Uchino , Hideaki Takahashi , Yuta Sagae
IPC分类号： H04W56/00 , H04W8/24 , H04L5/00 , H04W76/02 , H04W84/04
CPC分类号： H04W56/004 , H04L5/001 , H04W8/24 , H04W56/0045 , H04W76/15 , H04W84/042
摘要： Appropriate CC-to-TAG mapping is configured when “UL CA” is performed. A mobile station UE of the invention includes: a management unit 11 configured to manage one or more TAGS; an adjustment unit 12 configured to make adjustment to synchronize transmission timings of uplink signals within CCs which belong to the same TAG; and a transmission unit 13 configured to notify a radio base station eNB of a combination of supported bands, supported CCs, and settable TAGS, and the bands and the CCs grouped in the TAGs included in the combination.

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