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91. 发明专利

JP5131550B2 Spreading code computing device, a communication system, transmitting device, receiving device, and a program 有权
公开(公告)号：JP5131550B2
公开(公告)日：2013-01-30
申请号：JP2008190059
申请日：2008-07-23
申请人：株式会社カオスウェア
发明人：健梅野
IPC分类号： H04B1/707 , H04J13/12 , H04L9/26
摘要： PROBLEM TO BE SOLVED: To improve communication performance by using a complex spreading code having perfect orthogonal property and excellent autocorrelation characteristics. SOLUTION: In a spreading code calculation device 501, a primitive root receiving part 502 receives any of primitive roots to a prime number p as the primitive root q to be assigned to a user, a number receiving part 503 receives any of integers 0, 1, 2, ..., p-1 as a number k of communication channel, and a complex code generating part 504 generates the complex spreading code of length p b(q, k)=(exp(i θ), exp(2πi×q 0+k /p), exp(2πi×q 1+k /p), exp(2πi×q 2+k /p), ..., exp(2πi×q (p-2)+k /p)) when k=0, 1, 2, ..., p-2, and generates the complex spreading code of length p b(q, k)=(exp(i θ), 1, 1, ..., 1) when k=p-1. The complex spreading code is suitable for channelization coding and is applicable to primary spread. COPYRIGHT: (C)2010,JPO&INPIT

93. 发明专利

JP5129061B2 Improved time tracking loop 有权
公开(公告)号：JP5129061B2
公开(公告)日：2013-01-23
申请号：JP2008208588
申请日：2008-08-13
申请人：クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人：ルカ・ブレッセント
IPC分类号： H04B1/707 , H04B1/7085 , H04B1/7073 , H04W56/00
摘要： PROBLEM TO BE SOLVED: To provide a newly improved time tracking loop for synchronizing the timing of a communication signal with the timing of a receiver which receives the communication signal. SOLUTION: A signal receiver quickly and highly precisely captures and tracks a received spread spectrum signal by using the accumulated object of overlapped samples. The accumulated object of the samples is formed by grouping the prescribed number of successive samples together. Then, the accumulated object of the overlapped samples is generated by overlapping the prescribed section of the accumulated object of the adjacent accumulated samples. The accumulated object of the overlap samples is generated, and transmitted to a timing discriminator, and a timing error showing a difference between the timing of the received spread spectrum signal and the timing of the signal receiver is determined. The timing discriminator compares the overlap accumulation signal transmitted first with the overlap accumulation signal transmitted the next, and determines the updated timing error. Afterwards, the timing of the receiver is adjusted according to the timing error. The accumulated object of the samples is overlapped so that the system timing can be more quickly adjusted than the case of using discrete samples. COPYRIGHT: (C)2009,JPO&INPIT

94. 发明专利

JP5128714B2 A method of operating a secondary station and the secondary station 有权
公开(公告)号：JP5128714B2
公开(公告)日：2013-01-23
申请号：JP2012112292
申请日：2012-05-16
申请人：コーニンクレッカフィリップスエレクトロニクスエヌヴィ
发明人：マシューピージェイベーカー , ティモシージェイモウルスレイ
IPC分类号： H04W52/40 , H04B1/707 , H04B7/005 , H04W36/18 , H04W52/18
CPC分类号： H04W52/18 , H04B1/7115 , H04W52/40

95. 发明专利

JP5123866B2 Radio base station and mobile station 有权
公开(公告)号：JP5123866B2
公开(公告)日：2013-01-23
申请号：JP2009010300
申请日：2009-01-20
申请人：株式会社エヌ・ティ・ティ・ドコモ
发明人：裕紀頭川
IPC分类号： H04W48/16 , H04B1/707 , H04B1/7083
CPC分类号： H04B1/7083 , H04B1/7115 , H04B7/022 , H04W48/16
摘要： A radio base station BTS and a mobile station UE of the present invention includes a receiving unit 11 configured to receive a plurality of downlink signals from a plurality of cells through a plurality of paths, and a cell identification determination unit 12 configured to determine downlink signals with an identical scrambling code which are received during a predetermined period, as an identical downlink signals transmitted from one and the identical cell, from among the plurality of received downlink signals.

96. 发明专利

JP5122714B2 High efficiency, a method and apparatus for measuring and reporting channel state information in a high-performance communication system 有权
公开(公告)号：JP5122714B2
公开(公告)日：2013-01-16
申请号：JP2001573665
申请日：2001-03-20
申请人：クゥアルコム・インコーポレイテッドQualcomm Incorporated
发明人：ウォレス、マーク , ウォルトン、ジャイ・アール , ジャラリ、アフマッド
IPC分类号： H04J11/00 , H04J99/00 , H04B1/707 , H04B7/04 , H04B7/06 , H04B7/08 , H04B7/12 , H04B7/26 , H04B17/00 , H04L25/02 , H04L27/26 , H04W52/08 , H04W52/42
CPC分类号： H04B7/0417 , H04B7/043 , H04B7/06 , H04B7/0626 , H04B7/0673 , H04B7/08 , H04B7/12 , H04L1/0003 , H04L1/0026 , H04L1/0029 , H04L5/0023 , H04L5/0026 , H04L5/0041 , H04L5/0048 , H04L5/0051 , H04L5/0091 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/0248 , H04L25/03343 , H04L27/2613 , H04L2025/03414 , H04L2025/03426 , H04L2025/03802 , H04W52/08 , H04W52/42
摘要： A method and apparatus for transmitting in a multi-antenna communication system (100). Each of a plurality of antennas (116,122) are assigned with a different one of a plurality of groups of sub-bands. The plurality of groups of sub-bands each include a different sub-set of the plurality of sub-bands, where the plurality of sub-bands of a first group are non-contiguous. Transmitting from the plurality of antennas (116) and simultaneously using the plurality of groups of sub-bands, where transmitting from each antenna (116) occurs on the group of sub-bands assigned to the antenna (116). A base station for use in the multi-antenna communication system (100) including a first processor (332) for pre-conditioning transmission data, assigning a plurality of pilot symbols to the plurality of transmit antennas (116), and assigning a plurality of sub-channel sub-sets to the plurality of antennas (116). The plurality of antennas (116) transmit each of the assigned plurality of pilot symbols over their respectiven assigned sub-channel sub-sets.

97. 发明专利

JP5119079B2 Wireless communication device 有权
公开(公告)号：JP5119079B2
公开(公告)日：2013-01-16
申请号：JP2008200697
申请日：2008-08-04
申请人： Kddi株式会社
发明人：忠行福原 , 和則竹内
IPC分类号： H04B1/707 , H04B17/00 , H04B1/7097 , H04J1/00 , H04J11/00 , H04J13/00
摘要： PROBLEM TO BE SOLVED: To obtain the interference power of a radio signal transmitted in a channel different from a channel used by a wireless communication device. SOLUTION: A radio signal receiving section 11 receives a radio signal transmitted in a frequency band of a first channel. A packet acquisition section 12 demodulates a radio signal received by the radio signal receiving section 11 and obtaions a packet. A channel information acquisition section 13 obtains channel information included in the packet. An interference power estimation section 15 obtains the reception power of a radio signal transmitted in a second channel which has a frequency band overlapping the frequency band of the first channel on the basis of the radio signal received by the radio signal receiving section 11 and the channel information obtained by the channel information acquisition section 13. COPYRIGHT: (C)2010,JPO&INPIT

98. 发明专利

JP5115420B2 Wireless communication device and wireless communication method 有权
公开(公告)号：JP5115420B2
公开(公告)日：2013-01-09
申请号：JP2008240848
申请日：2008-09-19
申请人：富士通株式会社
发明人：義久中山 , 秀雄加藤 , 晋一郎小林 , 昌代寺田
IPC分类号： H04W52/04 , H04B1/707 , H04J13/00 , H04W52/08 , H04W52/58
摘要： PROBLEM TO BE SOLVED: To prevent the enlargement of a circuit scale, to prevent an increase of power consumption, and to prevent an increase of a calorific value when processing a slot format of a radio communication channel. SOLUTION: Data of a field corresponding to a non-used field of an F-DPCH slot format out of fields of a predetermined DPCH slot format are masked, thereby processing the F-DPCH slot format added by a release 6 of 3GPP by means of a DPCH slot format processing device. Furthermore, data of fields in a part of the predetermined DPCH slot format are masked and different offsets are added, thereby processing the F-DPCH slot format expanded by a release 7 of 3GPP by means of the DPCH slot format processing device. COPYRIGHT: (C)2010,JPO&INPIT

99. 发明专利

JP5115397B2 Delay profile acquisition method and apparatus 有权
公开(公告)号：JP5115397B2
公开(公告)日：2013-01-09
申请号：JP2008215899
申请日：2008-08-25
申请人：富士通株式会社
发明人：哲平大山
IPC分类号： H04B1/707 , H04B1/7073 , H04B1/7113
摘要： PROBLEM TO BE SOLVED: To accurately obtain a delay profile for detecting a path timing by using a pilot in a reception signal under a condition in which a wireless mobile station device moves at low or high speed in the wireless mobile station device or the like in a mobile wireless communication network. SOLUTION: A matched filter 301 and amplitude addition units 302 (A) and 302 (B) perform two correlation calculations between a known pilot sequence and the pilot in the reception signal for two different correlation lengths. A complex conjugate product calculation circuit 303 calculates a complex conjugate product to each correlation calculation result. An addition circuit 304 performs addition averaging of the calculation result obtained by the complex conjugate product calculation circuit 303. Accordingly, a good delay profile is obtained even when a path condition is largely changed because of high-speed communication with the mobile terminal while maintaining noise resistance performance equivalent to that obtained by amplitude averaging over a long interval. COPYRIGHT: (C)2010,JPO&INPIT

100. 发明专利

JP5114313B2 Data communication system and data communication method 有权
公开(公告)号：JP5114313B2
公开(公告)日：2013-01-09
申请号：JP2008164568
申请日：2008-06-24
申请人：京楽産業.株式会社
发明人：直幸渡辺 , 尚加來 , 良二置田 , 等伊藤 , 透小川
IPC分类号： H04J11/00 , H04B1/707 , H04B1/7073 , H04B3/54 , H04J1/00 , H04J13/16 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To perform multiplex transmission of information while securing necessary irreducible identification gain without any signal collision even when a communication system comprising a master device, a plurality of repeaters, and a plurality of slave devices includes many slave devices and respective repeaters perform transmission simultaneously. SOLUTION: A data communication system carries out data communication among the master device, repeaters, and the plurality of slave devices. The data communication system includes a synchronizing signal generating means of generating a beacon signal BC1 for synchronizing the master device and repeaters and a beacon signal BC2 for synchronizing a repeater with slave devices belonging to the repeater. The synchronizing signal generating means generates beacon signals BC2 as many as the repeaters through 4-code-division multiplexing and 16-frequency-division multiplexing for each code. Data other than the beacon signals BC2 are transmitted without frequency-division multiplexing of different user data. COPYRIGHT: (C)2010,JPO&INPIT

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