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21. 发明授权

US07286508B2 Signal format in multi-carrier CDMA transmission system 有权
标题翻译：多载波CDMA传输系统中的信号格式
公开(公告)号：US07286508B2
公开(公告)日：2007-10-23
申请号：US09914781
申请日：2000-12-27
申请人： Sadayuki Abeta , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Sadayuki Abeta , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B7/216 , H04B7/212 , H04J3/06
CPC分类号： H04J13/00 , H04B1/692 , H04L5/0021 , H04L5/005 , H04L5/0051
摘要： A multi-carrier CDMA transmission system signal format that reproduces data symbols, aligns the reproduced data symbols along a frequency axis, multiplies the reproduced data symbols by a spreading code, and conducts multiplex transmission of data using a plurality of sub-carriers of different frequencies, in which a common pilot symbol inserted in a transmission signal for estimating a variation in channel and estimating a channel common to each of a plurality of users, and a user-specific individual pilot symbol transmitted along a channel different from the above-described channel.
摘要翻译：一种多载波CDMA传输系统信号格式，其再现数据符号，沿着频率轴对准再现的数据符号，将再现的数据符号乘以扩展码，并使用不同频率的多个子载波进行数据的多路复用传输，其中插入用于估计信道变化并估计多个用户中的每一个的公共信道的传输信号中的公共导频符号以及沿着与上述信道不同的信道发送的用户特有的单独导频符号。

22. 发明授权

US07532864B2 Noise power estimation method and noise power estimation device 失效
标题翻译：噪声功率估计方法和噪声功率估计装置
公开(公告)号：US07532864B2
公开(公告)日：2009-05-12
申请号：US10524213
申请日：2004-02-16
申请人： Masaru Fukuoka , Atsushi Sumasu , Sadayuki Abeta , Noriyuki Maeda , Hiroyuki Atarashi
发明人： Masaru Fukuoka , Atsushi Sumasu , Sadayuki Abeta , Noriyuki Maeda , Hiroyuki Atarashi
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译：导频提取部分14从接收信号中提取导频信号。同相的加法器21对各个副载波添加导频信号的多个相关值。延迟装置201-1至201-6暂时保持一个同相的附加值。乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。乘法结果中的每一个由加法器24相加，并由平方装置25平方。累积加法器26对整个子载波进行累加 - 相加。乘法器203通过将预定值乘以累积附加值来平均。具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。

23. 发明申请

US20060154608A1 Noise power estimation method and noise power estimation device 失效
标题翻译：噪声功率估计方法和噪声功率估计装置
公开(公告)号：US20060154608A1
公开(公告)日：2006-07-13
申请号：US10524213
申请日：2004-02-16
申请人： Masaru Fukuoka , Atsushi Sumasu , Sadayuki Abeta , Noriyuki Maeda , Hiroyuki Atarashi
发明人： Masaru Fukuoka , Atsushi Sumasu , Sadayuki Abeta , Noriyuki Maeda , Hiroyuki Atarashi
IPC分类号： H04B17/00
CPC分类号： H04B1/7097 , H04B17/345 , H04B2201/70701 , H04L1/20
摘要： A pilot extract section 14 extracts a pilot signal from received signal. An adder 21 in-phase adds a plurality of correlated values of pilot signals for respective subcarriers. Delay devices 201-1 to 201-6 temporarily maintain one in-phase added value. Multiplier 202-1 to 202-6 multiplies a predetermined coefficient to the in-phase added value that is output from the delay device. The predetermined coefficient reflects the result, which is obtained by correcting for multiple times the difference of channel variation in the different subcarriers that is generated when noise power per one subcarrier is calculated. Each of the multiplying results is added by an adder 24, and is squared by a square device 25. A cumulative adder 26 cumulative-adds the squared values for the whole subcarrier. A multiplier 203 averages by multiplying predetermined values to the cumulative-added values. Having such configuration, even if the correlation between adjacent subcarriers becomes lower by frequency selective fading, the accuracy for estimating noise power can be improved.
摘要翻译：导频提取部分14从接收信号中提取导频信号。同相的加法器21对各个副载波添加导频信号的多个相关值。延迟装置201-1至201-6暂时保持一个同相的附加值。乘法器202-1至202-6将预定系数与从延迟装置输出的同相相加值相乘。预定系数反映通过多次计算在每个子载波的噪声功率被计算时产生的不同子载波中的信道变化的差异而获得的结果。乘法结果中的每一个由加法器24相加，并由平方装置25平方。累积加法器26对整个子载波进行累加 - 相加。乘法器203通过将预定值乘以累积附加值来平均。具有这样的配置，即使相邻副载波之间的相关性通过频率选择性衰落变得较低，也可以提高估计噪声功率的精度。

24. 发明授权

US06647003B1 Channel estimation unit, and CDMA receiver and CDMA transceiver with channel estimation unit 失效
标题翻译：信道估计单元，以及具有信道估计单元的CDMA接收机和CDMA收发器
公开(公告)号：US06647003B1
公开(公告)日：2003-11-11
申请号：US09358037
申请日：1999-07-20
申请人： Sadayuki Abeta , Mamoru Sawahashi , Fumiyuki Adachi
发明人： Sadayuki Abeta , Mamoru Sawahashi , Fumiyuki Adachi
IPC分类号： H04B7216
CPC分类号： H04L25/0212 , H04B2201/70701 , H04L25/0226 , H04L25/0234
摘要： There are provided a channel estimation unit for achieving highly accurate channel estimation, a CDMA receiver and a CDMA transceiver with the channel estimation unit. Channel estimates of data symbols are obtained from a pilot symbol sequence which is parallel with a data symbol sequence. First, a plurality of pilot blocks are generated from the pilot symbol sequence. The channel estimates of the data symbols are obtained by calculating a sum of appropriately weighted averages of pilot symbols in the individual pilot blocks. This enables highly accurate channel estimation. More accurate channel estimation can be achieved by carrying out the channel estimation of the data symbols using the pilot symbols belonging to other slots rather than limiting to the pilot symbols in the slot to which the estimated data symbol belongs.
摘要翻译：提供了一种用于实现高度准确的信道估计的信道估计单元，具有信道估计单元的CDMA接收机和CDMA收发器。从与数据符号序列并行的导频符号序列获得数据符号的信道估计。首先，从导频符号序列生成多个导频块。通过计算各个导频块中的导频符号的适当加权平均值的和来获得数据符号的信道估计。这使得能够进行高度准确的信道估计。可以通过使用属于其他时隙的导频符号执行数据符号的信道估计而不是限制估计数据符号所属的时隙中的导频符号来实现更准确的信道估计。

25. 发明授权

US08310984B2 Controller, mobile station, mobile communications system and control method 失效
标题翻译：控制器，移动台，移动通信系统及控制方法
公开(公告)号：US08310984B2
公开(公告)日：2012-11-13
申请号：US11909635
申请日：2006-03-27
申请人： Akihito Morimoto , Kenichi Higuchi , Sadayuki Abeta , Mamoru Sawahashi
发明人： Akihito Morimoto , Kenichi Higuchi , Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04W4/00
CPC分类号： H04W72/085 , H04W36/18
摘要： A disclosed control apparatus performs packet communications with a mobile station and divides a coverage area into plural sectors so as to control the communications. The control apparatus comprises a transmission allocation portion that selects at least two transmission sectors to perform transmission to the mobile station in accordance with reception quality imparted from the mobile station so as to perform a transmission allocation for the mobile station; and a transmission portion that uses an identical scramble code for sector identification so as to perform transmission to the mobile station.
摘要翻译：所公开的控制装置执行与移动站的分组通信，并将覆盖区域划分成多个扇区，以便控制通信。所述控制装置包括发送分配部，所述发送分配部选择至少两个发送扇区，根据从所述移动台发出的接收质量向所述移动台进行发送，以对所述移动台进行发送分配; 以及传输部分，其使用相同的扰码用于扇区识别，以便向移动台执行传输。

26. 发明授权

US07136624B2 Radio resources allocating method, radio resources allocating apparatus, and mobile communication system 失效
标题翻译：无线电资源分配方法，无线电资源分配装置和移动通信系统
公开(公告)号：US07136624B2
公开(公告)日：2006-11-14
申请号：US10358341
申请日：2003-02-05
申请人： Yoshiaki Ofuji , Sadayuki Abeta , Mamoru Sawahashi
发明人： Yoshiaki Ofuji , Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04B1/00
CPC分类号： H04W72/085 , H01Q1/1257 , H04W16/28 , H04W72/046 , H04W72/08 , H04W72/10 , Y10S370/902 , Y10S370/903 , Y10S370/905
摘要： An object is to select destination mobile stations so as to prevent directional beams directed to the respective mobile stations from interfering with each other in application of a directional antenna, and to allocate the radio resources to the mobile stations thus selected. A base station 10, which is capable of forming a plurality of directional beams directed to a plurality of mobile stations by applying a directional antenna 11 capable of adaptively varying directivity, to a transmission-reception antenna, is provided with a location estimator 19 for estimating a location of each mobile station on the basis of orientation information of the directional antenna; a reception quality estimator 22 for estimating a reception quality of each mobile station; a transmission priority calculator 21 for calculating a transmission priority of a packet to be transmitted; a determiner 16 for determining the number and directions of directional beams to be formed, based on the reception quality of each mobile station, location of each mobile station, and transmission priorities of packets; and an allocation controller 13 for allocating the plurality of directional beams thus determined, to a plurality of mobile stations.
摘要翻译：目的是选择目的地移动台，以防止指向各个移动台的定向波束在应用定向天线时彼此干扰，并将无线电资源分配给这样选择的移动台。能够通过将能够自适应地改变方向性的定向天线11应用于发送接收天线而能够形成指向多个移动站的多个定向波束的基站10设置有用于估计的位置估计器19 基于定向天线的取向信息的每个移动站的位置; 用于估计每个移动台的接收质量的接收质量估计器22; 发送优先级计算器21，用于计算要发送的分组的发送优先级; 基于每个移动台的接收质量，每个移动台的位置以及分组的传输优先级来确定要形成的定向波束的数量和方向的确定器16; 以及用于将如此确定的多个定向波束分配给多个移动站的分配控制器13。

27. 发明授权

US07522924B2 Slot allocation apparatus and slot allocation method 有权
标题翻译：时隙分配装置和时隙分配方法
公开(公告)号：US07522924B2
公开(公告)日：2009-04-21
申请号：US11197401
申请日：2005-08-05
申请人： Sadayuki Abeta , Mamoru Sawahashi
发明人： Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04W72/00
CPC分类号： H04B7/2618 , H04W24/00 , H04W72/0446 , H04W72/10 , H04W74/04
摘要： A slot allocation apparatus for allocating slots in communicating with plural mobile stations in accordance with FDD/TDD scheme includes (a) traffic property detecting apparatus for detecting a property of input traffic; (b) slot allocation priority determining apparatus for determining which of an uplink and a downlink should be given a higher priority for the slot allocation, based on a priority of the traffic derived from the detected property of the input traffic; and (c) slot allocating apparatus for allocating the uplink and downlink slots for the mobile stations, based on the determination result.
摘要翻译：根据FDD / TDD方案的用于分配与多个移动站进行通信的时隙的时隙分配装置包括：（a）用于检测输入业务的属性的业务属性检测装置; （b）时隙分配优先级确定装置，用于基于从所检测到的输入业务的属性导出的业务的优先级，确定对于时隙分配应当给予上行链路和下行链路哪一个优先级; 以及（c）基于确定结果为移动台分配上行链路和下行链路时隙的时隙分配装置。

28. 发明授权

US07321772B2 Mobile station, base station, communications system, and communication method 有权
标题翻译：移动台，基站，通信系统和通信方式
公开(公告)号：US07321772B2
公开(公告)日：2008-01-22
申请号：US10378900
申请日：2003-03-05
申请人： Akihito Morimoto , Sadayuki Abeta , Mamoru Sawahashi
发明人： Akihito Morimoto , Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04Q7/28 , H04Q7/20
CPC分类号： H04W48/20 , H04W36/18 , H04W36/22 , H04W36/30
摘要： A mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a selection unit configured to select a communication area to perform communication from a plurality of communication areas based on traffic load in the plurality of communication areas where the reception unit can receive the signal; and a notification unit configured to notify the base station of the communication area selected. Another mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a calculation unit configured to calculate a ratio of an average reception quality value over a short period to an average reception quality value over a long period; and a selection unit configured to select a communication area to perform communication from a plurality of communication areas where the reception unit can receive the signal, based on the ratio.
摘要翻译：移动站包括：接收单元，被配置为接收从基站发送的信号; 选择单元，其被配置为基于所述接收单元可以接收所述信号的所述多个通信区域中的业务负载来选择从多个通信区域进行通信的通信区域; 以及通知单元，被配置为向所述基站通知所选择的通信区域。另一移动站包括：接收单元，被配置为接收从基站发送的信号; 计算单元，被配置为计算长时间段中的短周期内的平均接收质量值与平均接收质量值的比率; 以及选择单元，被配置为基于所述比例从所述接收单元可以接收所述信号的多个通信区域中选择通信区域以进行通信。

29. 发明申请

US20070060192A1 MOBILE STATION, BASE STATION, COMMUNICATIONS SYSTEM, AND COMMUNICATION METHOD 审中-公开
标题翻译：移动站，基站，通信系统和通信方法
公开(公告)号：US20070060192A1
公开(公告)日：2007-03-15
申请号：US11556425
申请日：2006-11-03
申请人： Akihito MORIMOTO , Sadayuki Abeta , Mamoru Sawahashi
发明人： Akihito MORIMOTO , Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04B1/00 , H04B7/00
CPC分类号： H04W48/20 , H04W36/18 , H04W36/22 , H04W36/30
摘要： A mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a selection unit configured to select a communication area to perform communication from a plurality of communication areas based on traffic load in the plurality of communication areas where the reception unit can receive the signal; and a notification unit configured to notify the base station of the communication area selected. Another mobile station comprises a reception unit configured to receive a signal transmitted from a base station; a calculation unit configured to calculate a ratio of an average reception quality value over a short period to an average reception quality value over a long period; and a selection unit configured to select a communication area to perform communication from a plurality of communication areas where the reception unit can receive the signal, based on the ratio.
摘要翻译：移动站包括：接收单元，被配置为接收从基站发送的信号; 选择单元，其被配置为基于所述接收单元可以接收所述信号的所述多个通信区域中的业务负载来选择从多个通信区域进行通信的通信区域; 以及通知单元，被配置为向所述基站通知所选择的通信区域。另一移动站包括：接收单元，被配置为接收从基站发送的信号; 计算单元，被配置为计算长时间段中的短周期内的平均接收质量值与平均接收质量值的比率; 以及选择单元，被配置为基于所述比例从所述接收单元可以接收所述信号的多个通信区域中选择通信区域以进行通信。

30. 发明申请

US20060034239A1 Slot allocation apparatus and slot allocation method 有权
标题翻译：时隙分配装置和时隙分配方法
公开(公告)号：US20060034239A1
公开(公告)日：2006-02-16
申请号：US11197401
申请日：2005-08-05
申请人： Sadayuki Abeta , Mamoru Sawahashi
发明人： Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04Q7/28
CPC分类号： H04B7/2618 , H04W24/00 , H04W72/0446 , H04W72/10 , H04W74/04
摘要： A slot allocation apparatus for allocating slots in communicating with plural mobile stations in accordance with FDD/TDD scheme includes (a) traffic property detecting means for detecting a property of input traffic; (b) slot allocation priority determining means for determining which of an uplink and a downlink should be given a higher priority for the slot allocation, based on a priority of the traffic derived from the detected property of the input traffic; and (c) slot allocating means for allocating the uplink and downlink slots for the mobile stations, based on the determination result.
摘要翻译：根据FDD / TDD方案，用于分配与多个移动站进行通信的时隙的时隙分配装置包括：（a）业务量属性检测装置，用于检测输入业务的属性; （b）时隙分配优先级确定装置，用于基于从所检测到的输入业务的属性导出的业务的优先级，确定对于时隙分配给予较高优先级的哪个上行链路和下行链路中的哪一个; 以及（c）时隙分配装置，用于根据确定结果分配用于移动台的上行链路和下行链路时隙。

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