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21. 发明专利

JP5108902B2 Base station apparatus and a wireless communication control method 有权
公开(公告)号：JP5108902B2
公开(公告)日：2012-12-26
申请号：JP2010003494
申请日：2010-01-11
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：信彦三木 , 啓之石井 , 尚人大久保
IPC分类号： H04W72/04 , H04J1/00 , H04J11/00
CPC分类号： H04W72/048 , H04L5/001 , H04L5/003 , H04W8/06 , H04W72/02 , H04W72/0453 , H04W88/06 , H04W88/08
摘要： The present invention provides a radio communication control method, in a communication system in which the system band is widened by aggregating a plurality of fundamental frequency blocks, that is suitable to transmit a downlink shared channel and its downlink control channel in different fundamental frequency blocks. According to this radio communication control method, a normal component carrier and an concatenated component carrier are selected for radio communication with a user terminal, and resources are allocated such that, in the event the user terminal is a terminal of LTE specifications which can support up to a fundamental frequency block, communication is made possible based on the LTE specifications using only the fundamental frequency block, and, in the event the user terminal is a terminal of the LTE-A specifications which can support up to the concatenated frequency block, communication is performed based on the LTE specifications using the concatenated frequency block.

22. 发明专利

JP5106516B2 Radio base station and a mobile communication method 有权
公开(公告)号：JP5106516B2
公开(公告)日：2012-12-26
申请号：JP2009260376
申请日：2009-11-13
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：尚人大久保 , 耕平清嶋 , 啓之石井
IPC分类号： H04W72/12 , H04J1/00 , H04J11/00
CPC分类号： H04W72/1268 , H04L5/0044 , H04L5/0053 , H04L5/0089 , H04W72/1252
摘要： 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 12 configured to assign a PUCCH resource, a PUSCH resource, and a PRACH resource to a mobile station UE in a cell subordinate to the radio base station eNB, wherein, when the number of mobile stations UEs in the cell is 1, the scheduling unit 12 is configured to use at least one of the PUCCH resource and the PRACH resource as the PUSCH resource.

23. 发明专利

JP5094991B2 User equipment, transmission method and mobile communication system 有权
公开(公告)号：JP5094991B2
公开(公告)日：2012-12-12
申请号：JP2011157108
申请日：2011-07-15
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：尚人大久保 , 啓之石井 , 信彦三木 , 健一樋口 , 祥久岸山
IPC分类号： H04W24/10 , H04W28/04 , H04W72/04
摘要： PROBLEM TO BE SOLVED: To transmit a plurality of control information respectively having different required qualities and bit numbers in an uplink with efficiency.SOLUTION: A user device transmits an uplink control signal to a base station device by the single carrier system. The user device has: means of preparing delivery confirmation information indicating an acknowledgement or a negative acknowledgement to a downlink data signal from demodulation results of the downlink data signal; means of preparing channel state information indicating a reception quality of a downlink reference signal; means of channel-coding multiple control information obtained by multiplexing the delivery confirmation information and the channel state information to prepare an uplink control signal; and means of transmitting the uplink control signal by a dedicated resource different from a resource for uplink data signals.

24. 发明专利

JP5089754B2 Mobile communication system, a base station and a transmission power control method 有权
公开(公告)号：JP5089754B2
公开(公告)日：2012-12-05
申请号：JP2010244079
申请日：2010-10-29
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：喜和後藤 , 尚人大久保
IPC分类号： H04W52/08 , H04W52/24
CPC分类号： H04W52/243 , H04B17/345 , H04W52/146 , H04W52/241 , H04W52/248
摘要： When a cell in a first system which follows a transmission loss to control an uplink transmit power neighbors a cell in a second system which follows channel fading to control an uplink transmit power, a quality of an uplink signal in the cell in the first system is maintained. The base station includes an uplink signal and interference power measuring unit which measures a desired signal power and an interference signal power from a received signal; an SIR calculating unit which calculates a receive quality for transmit power control from the desired signal power and the interference signal power; a TPC command generating unit which generates transmit power control information in accordance with results of comparing the receive quality for the transmit power control with a predetermined target receive quality; and a signal transmitting unit which transmits, to a user apparatus, a control signal which includes the transmit power control information and resource information which indicates radio resources for the uplink signal, wherein the SIR calculating unit calculates the receive quality for the transmit power control with a calculating method in accordance with communications conditions in a cell of the base station.

25. 发明专利

JP5069727B2 Radio base stations, mobile station and measurement methods 有权
公开(公告)号：JP5069727B2
公开(公告)日：2012-11-07
申请号：JP2009197465
申请日：2009-08-27
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：尚人大久保 , 貞行安部田 , 幹生岩村 , 美波石井
IPC分类号： H04W64/00 , G01S5/14 , H04W72/04
CPC分类号： G01S5/0205 , G01S1/20 , G01S5/0036 , H04W64/00

26. 发明专利

JP5347039B2 Wireless base station 有权
公开(公告)号：JP5347039B2
公开(公告)日：2013-11-20
申请号：JP2012049448
申请日：2012-03-06
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：耕平清嶋 , 佑太寒河江 , 尚人大久保
IPC分类号： H04W72/12 , H04W16/32 , H04W72/04
CPC分类号： H04W72/1226
摘要： The objective of the present invention is to achieve suitable scheduling when CA is being performed. In a wireless base station eNB as laid out in the present invention, a scheduling unit (13) is configured so as to select either all, or at least greater than or equal to one, cell (for example, cells #A/#B) to which each mobile station UE is being connected, calculate a correction coefficient W used for each mobile station UE (for example, mobile station UE #0) in each of the selected cells (for example, cells #A/#B), use the calculated correction coefficient W to calculate a scheduling coefficient Cn for each of the mobile station UEs #n (for example, mobile station UE #0), and on the basis of the calculated scheduling coefficients Cn, determine mobile station UEs to which resources are assigned.

27. 发明专利

JP5314173B1 Base station and control method in a mobile communication system 有权
公开(公告)号：JP5314173B1
公开(公告)日：2013-10-16
申请号：JP2012114919
申请日：2012-05-18
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：義顕大藤 , 耕平清嶋 , 尚人大久保 , 理香鬼頭
IPC分类号： H04W28/06 , H04W72/08 , H04W72/12
CPC分类号： H04W28/06 , H04W72/1226
摘要： A base station comprises at least: a quality information acquiring unit that acquires quality information; a storage unit that stores, for each of the indexes of a plurality of parameter sets, the correspondences among quality information, radio resource allocation periods, bundling information indicating whether the bundling communication is to be performed or not, and radio resources that can be used in accordance with whether the bundling communication is to be performed or not; and a control unit that refers to the correspondences, thereby determining an index corresponding to the current quality information and that, when whether the bundling communication is to be performed or not, which is indicated by the corresponding bundling information, does not match whether the current bundling information of the base station is to be performed or not, prohibits, for a given time period, switching between the necessity to perform the bundling communication and the unnecessity to perform the bundling communication. The base station performs a scheduling in a determined allocation period and uses a determined radio resource to communicate with user equipment.

28. 发明专利

JP5285752B2 Base station and a communication control method 有权
公开(公告)号：JP5285752B2
公开(公告)日：2013-09-11
申请号：JP2011197598
申请日：2011-09-09
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：義顕大藤 , 尚人大久保
IPC分类号： H04W48/10 , H04W72/04 , H04W72/08
CPC分类号： H04L5/0037 , H04W48/10 , H04W72/042
摘要： A base station 100 includes: an external interface 101 configured to acquire the number of transmissions of the system information to the mobile station; a table holding unit 107 configured to hold a table in which a payload size of the system information, the number of transmissions, and the number of radio resource blocks corresponding to a combination of the payload size and the number of transmissions are associated with one another; a system information transmission control unit 105 configured to determine radio resource blocks required for the transmission of the system information, on the basis of the table held in the table holding unit 107; and a transmission data generation unit 111 configured to map the system information to predetermined regions of the shared channel by using the radio resource blocks determined by the system information transmission control unit 105.

29. 发明专利

JP5250061B2 Communication control method, mobile communication system and a mobile terminal device 有权
公开(公告)号：JP5250061B2
公开(公告)日：2013-07-31
申请号：JP2011029143
申请日：2011-02-14
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：哲士阿部 , 和晃武田 , 尚人大久保 , 啓之石井 , 佑太寒河江
IPC分类号： H04W28/04 , H04L1/18 , H04W28/06
CPC分类号： H04L1/0002 , H04L1/0067 , H04L1/1819 , H04L1/1822 , H04L1/1845
摘要： 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 802), performing a rate matching process for the coded bits after interleaving (ST 804), and transmitting transmission data to match the coded bit length after rate matching, to a mobile terminal apparatus (UE) (ST 806), and, in the mobile terminal apparatus (UE), receiving the transmission data (ST 807), performing channel decoding of the received data (ST 810), and discarding part of the received data in accordance with the size of the soft buffer memory in the mobile terminal apparatus (UE) and storing this in the soft buffer memory (ST 812 and ST 813).

30. 发明专利

JP5205320B2 Radio base station and a mobile communication method 有权
公开(公告)号：JP5205320B2
公开(公告)日：2013-06-05
申请号：JP2009075221
申请日：2009-03-25
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：耕平清嶋 , 啓之石井 , 尚人大久保
IPC分类号： H04W72/04 , H04W72/12
CPC分类号： H04L5/0064 , H04L1/1854 , H04L5/0017 , H04L5/0019 , H04L5/0044 , H04L5/0053 , H04L5/0055
摘要： A radio base station according to the present invention comprising : a radio base station comprising a resource assignment unit configured to assign 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 a resource candidate 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, and 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 during a semi-persistent scheduling transmission acknowledgement signal transmission period of the first mobile station, and when the downlink data is scheduled by the semi-persistent scheduling, the resource assignment unit is configured to select a resource for transmitting a transmission acknowledgment signal for the downlink data from among the resource candidates for transmitting a semi-persistent scheduling transmission acknowledgement signal.

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