公开(公告)号：US06282185B1

公开(公告)日：2001-08-28

申请号：US09068169

申请日：1998-05-04

申请人： Hannu Häkkinen ,  Ari Hottinen ,  Mikko Kokkonen ,  Risto Wichman

发明人： Hannu Häkkinen ,  Ari Hottinen ,  Mikko Kokkonen ,  Risto Wichman

IPC分类号： H04J1300

CPC分类号： H04L25/03331 ,  H04B1/715 ,  H04J11/0036 ,  H04L5/0016 ,  H04L5/0041 ,  H04L25/0204 ,  H04L25/0228 ,  H04L2025/03414

摘要： The invention relates to a transmitting and receiving method and a radio system. In a transmitter the signals to be transmitted are spread coded in means and modulated by subcarriers in means. In a receiver (R) the signals are demodulated in means and submitted to multiuser detection in means by using the subcarriers to limit the number of detectable signals in the means. The receiver uses multiuser detection for reducing multiple access interference and correcting frequency-selective fading.

摘要翻译： 本发明涉及发射和接收方法和无线电系统。 在发射机中，待发射的信号以装置进行扩频编码并通过装置中的副载波进行调制。 在接收机（R）中，信号以装置解调，并通过使用子载波来限制在装置中的可检测信号的数量在装置中被提交给多用户检测。 接收机使用多用户检测来减少多址干扰并纠正频率选择性衰落。

公开(公告)号：US07162272B1

公开(公告)日：2007-01-09

申请号：US09660668

申请日：2000-09-13

申请人： Ari Hottinen ,  Risto Wichman

发明人： Ari Hottinen ,  Risto Wichman

IPC分类号： H04M1/00

CPC分类号： H04L1/0065 ,  H04B7/022 ,  H04B7/0408 ,  H04B7/061 ,  H04L1/0071 ,  H04L1/06

摘要： In mobile communications systems transmission antenna diversity is used e.g. to compensate for fading caused to the signal on the radio path. It is known to make the choice of transmission antenna jointly for all subscriber connections, but it is not hereby possible to offer the optimum transmission antenna to simultaneous connections. The present invention aims at a method for implementing transmission antenna diversity on a data transmission connection, which is set up between a transmitting unit (BS), wherein there are several transmission antenna routes (ANT1, ANT2, ANT3), and a receiving unit (MS1, MS2). In the method, a broadcast signal is transmitted through all transmission antenna routes (ANT1, ANT2, ANT3) of the transmitting unit, with the aid of these signals a choice is made in the receiving unit (MS1, MS2) of the optimum transmission antenna route connected for use. According to the invention, the method is characterised in that the broadcast signal of each transmission antenna route is shaped by an individual signal shaping method which is different from the others and a transmission antenna route is connected for use based on the received antenna choice message, individually for each receiving unit.

摘要翻译： 在移动通信系统中，例如使用发射天线分集。 以补偿对无线电路径上的信号造成的衰落。 已知为所有用户连接共同选择发射天线，但是不可能将最佳的发射天线提供给同时连接。 本发明的目的在于在数据传输连接上实现发射天线分集的方法，该数据传输连接建立在发射单元（BS）之间，其中存在多个发射天线路由（ANT 1，ANT 2，ANT 3）和 接收单元（MS 1，MS 2）。 在该方法中，通过发送单元的所有发送天线路由（ANT 1，ANT 2，ANT 3），通过这些信号，在接收单元（MS 1，MS 2）中进行选择，发送广播信号， 的最佳发射天线路由连接使用。 根据本发明，该方法的特征在于，每个发送天线路由的广播信号由与其他发送天线路径不同的单独的信号整形方法整形，并且基于所接收的天线选择消息将发送天线路由连接使用， 单独为每个接收单元。

公开(公告)号：US09106392B2

公开(公告)日：2015-08-11

申请号：US11605382

申请日：2006-11-29

申请人： Ari Hottinen ,  Risto Wichman

发明人： Ari Hottinen ,  Risto Wichman

IPC分类号： H04B1/06 ,  H04L1/00 ,  H04B7/06 ,  H04L1/06 ,  H04B7/02 ,  H04B7/04

CPC分类号： H04L1/0065 ,  H04B7/022 ,  H04B7/0408 ,  H04B7/061 ,  H04L1/0071 ,  H04L1/06

摘要： Transmission antenna diversity can be set up on a data transmission connection between a transmitting unit, wherein there are several transmission antenna routes, and a receiving unit. A broadcast signal is transmitted through all transmission antenna routes of the transmitting unit, with the aid of these signals a choice is made in the receiving unit of the optimum transmission antenna route and a message of the choice is transmitted to the transmitting unit, which transmits user data through the transmission antenna route connected for use. The broadcast signal of each transmission antenna route can be shaped by an individual signal shaping method which is different from the others and a transmission antenna route is connected for use based on the received antenna choice message, individually for each receiving unit.

摘要翻译： 可以在发送单元之间的数据传输连接上建立发射天线分集，其中存在若干发射天线路由，以及接收单元。 通过发送单元的所有发送天线路由发送广播信号，借助于这些信号，在最佳发送天线路由的接收单元中进行选择，并将选择的消息发送到发送单元，发送单元发送 用户数据通过发送天线的路由连接使用。 每个发送天线路由的广播信号可以通过与其他发送天线路径不同的单独的信号整形方法来形成，并且基于所接收的天线选择消息，单独地为每个接收单元连接发送天线路径以供使用。

公开(公告)号：US07236537B2

公开(公告)日：2007-06-26

申请号：US09879831

申请日：2001-06-13

申请人： Ari Hottinen ,  Risto Wichman

发明人： Ari Hottinen ,  Risto Wichman

IPC分类号： H04B7/02

CPC分类号： H04W52/42 ,  H04B7/0634 ,  H04B7/0656 ,  H04W52/54

摘要： The invention relates to a method and a radio system for transmitting a digital signal. The method comprises the following steps: the transmitter transmits at least a part of the signal via at least two different transmit antenna paths; the transmitter weights the transmit power of the signals to be transmitted via the different transmit antenna paths with respect to one another by means of changeable weighting coefficients determined for each transmit antenna path; the receiver receives the signal.

摘要翻译： 本发明涉及一种用于发送数字信号的方法和无线电系统。 该方法包括以下步骤：发射机经由至少两个不同的发射天线路径发送信号的至少一部分; 发射机通过针对每个发射天线路径确定的可变加权系数来相对于彼此来加权要经由不同发射天线路径发送的信号的发射功率; 接收器接收信号。

公开(公告)号：US06625138B2

公开(公告)日：2003-09-23

申请号：US09974325

申请日：2001-10-09

申请人： Juha Kärnä ,  Antti Toskala ,  Pekka Soininen ,  Kari Kalliojärvi ,  Ari Hottinen ,  Risto Wichman

发明人： Juha Kärnä ,  Antti Toskala ,  Pekka Soininen ,  Kari Kalliojärvi ,  Ari Hottinen ,  Risto Wichman

IPC分类号： H04B7216

CPC分类号： H04B1/7097 ,  H04W74/008 ,  H04W74/0833 ,  H04W88/08

摘要： The invention relates to a data transmission method used in a CDMA-type radio system. A base station and terminal equipments exchange data at least in a packet switched mode, and a terminal equipment transmits to the base station on a random access channel a random access signal comprising at least a preamble (100) and a data part (102) multiplied by a spreading code. A predetermined set of spreading codes and signature sequences (104) are stored in the terminal equipment, and each signature sequence (104) determines one spreading code. The terminal equipment selects one signature sequence (104) by a random process from the set of signature sequences and adds the selected signature sequence (104) to the preamble (100) of the random access signal. Further, the terminal equipment uses the spreading code corresponding to the selected signature sequence (104) in the data part (102) of the random access signal. Interference cancellation is performed at the base station according to the signature sequence (104) of the preamble (100) of the received random access signal, such that at least the interference caused by the received data part (102) is eliminated from at least one other received signal in order to improve detection.

公开(公告)号：US20070184853A1

公开(公告)日：2007-08-09

申请号：US11723509

申请日：2007-03-20

申请人： Ari Hottinen ,  Risto Wichman ,  Olav Tirkkonen

发明人： Ari Hottinen ,  Risto Wichman ,  Olav Tirkkonen

IPC分类号： H04Q7/20

CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0658 ,  H04W52/241 ,  H04W52/247

摘要： The invention relates to a method for controlling the weighting of a data signal in the at least two antenna elements of a first radio connection unit of a radio communications system, which data signal is to be distributed for parallel transmission to a second radio connection unit to at least two beams. In order to improved such a method, it comprises: determining in the second radio connection unit a weight information enabling the first radio connection unit to determine the sets of weights for suitable beams for transmission and transmitting it to the first radio connection unit; and distributing the data signal in the first radio connection unit to those sets of weights and transmitting the data signals simultaneously via the formed beams. Alternatively or additionally, the second unit determines the number of beams to be used and informs the first unit about it. The invention equally relates to corresponding radio connection units, radio connection unit modules and radio communications systems.

摘要翻译： 本发明涉及一种用于控制无线电通信系统的第一无线电连接单元的至少两个天线单元中的数据信号的加权的方法，该数据信号将被分配用于并行传输到第二无线电连接单元 至少两个梁。 为了改进这种方法，包括：在第二无线电连接单元中确定加权信息，使得第一无线电连接单元能够确定用于传输的合适波束的权重集合并将其发送到第一无线电连接单元; 并且将第一无线电连接单元中的数据信号分配到这些权重集合，并经由形成的波束同时发送数据信号。 或者或另外，第二单元确定要使用的波束的数量，并将其通知第一单元。 本发明同样涉及对应的无线电连接单元，无线电连接单元模块和无线电通信系统。

公开(公告)号：US06754286B2

公开(公告)日：2004-06-22

申请号：US09741135

申请日：2000-12-18

申请人： Ari Hottinen ,  Risto Wichman

发明人： Ari Hottinen ,  Risto Wichman

IPC分类号： H04L2720

CPC分类号： H04B7/0634 ,  H04B7/061 ,  H04B7/0636 ,  H04L1/06 ,  H04W52/42

摘要： The invention relates to a transmit diversity method for a wireless communication system comprising a transmitting element and at least one receiver, wherein a transmission signal is transmitted from the transmitting element to the at least one receiver in accordance with a weight information determined in response to a feedback information. The feedback information is derived from the response at the at least one receiver to the transmission signal, and is fed back using multiplexed feedback signals. Alternatively, the weight information may be determined at the transmitting element by filtering said feedback information and quantizing the filtered feedback information to a desired quantization constellation. Thus, multiple quantization constellations and combinations thereof and/or constellation specific feedback subchannels can be used for channel probing, such that the total feedback resolution can be enhanced, while maintaining low signaling capacity of the feedback channel.

摘要翻译： 本发明涉及一种用于无线通信系统的发射分集方法，该无线通信系统包括发射单元和至少一个接收机，其中根据响应于所述发射单元确定的加权信息，从所述发射单元向所述至少一个接收机发送发射信号 反馈信息。 反馈信息从至少一个接收机对发送信号的响应导出，并且使用复用的反馈信号反馈。 或者，可以在发送元件处通过对所述反馈信息进行滤波并将经滤波的反馈信息量化为期望的量化星座来确定权重信息。 因此，多个量化星座及其组合和/或星座特定反馈子信道可以用于信道探测，使得可以在维持反馈信道的低信令容量的同时增强总反馈分辨率。

公开(公告)号：US06594248B1

公开(公告)日：2003-07-15

申请号：US09407568

申请日：1999-09-28

申请人： Juha Kärnä ,  Antti Toskala ,  Pekka Soininen ,  Kari Kalliojärvi ,  Ari Hottinen ,  Risto Wichman

发明人： Juha Kärnä ,  Antti Toskala ,  Pekka Soininen ,  Kari Kalliojärvi ,  Ari Hottinen ,  Risto Wichman

IPC分类号： H04B7216

CPC分类号： H04B1/7097 ,  H04W74/008 ,  H04W74/0833 ,  H04W88/08

摘要： The invention relates to a data transmission method used in a CDMA-type radio system. A base station and terminal equipments exchange data at least in a packet switched mode, and a terminal equipment transmits to the base station on a random access channel a random access signal comprising at least a preamble (100) and a data part (102) multiplied by a spreading code. A predetermined set of spreading codes and signature sequences (104) are stored in the terminal equipment, and each signature sequence (104) determines one spreading code. The terminal equipment selects one signature sequence (104) by a random process from the set of signature sequences and adds the selected signature sequence (104) to the preamble (100) of the random access signal. Further, the terminal equipment uses the spreading code corresponding to the selected signature sequence (104) in the data part (102) of the random access signal. Interference cancellation is performed at the base station according to the signature sequence (104) of the preamble (100) of the received random access signal, such that at least the interference caused by the received data part (102) is eliminated from at least one other received signal in order to improve detection.

公开(公告)号：US06584161B2

公开(公告)日：2003-06-24

申请号：US10013098

申请日：2001-11-06

申请人： Ari Hottinen ,  Risto Wichman

发明人： Ari Hottinen ,  Risto Wichman

IPC分类号： H04L2720

CPC分类号： H04B7/0634 ,  H04B7/061 ,  H04B7/0636 ,  H04L1/06 ,  H04W52/42

摘要： The invention relates to a transmit diversity method for a wireless communication system comprising a transmitting element and at least one receiver, wherein a transmission signal is transmitted from the transmitting element to the at least one receiver in accordance with a weight information determined in response to a feedback information. The feedback information is derived from the response at the at least one receiver to the transmission signal, and is fed back using multiplexed feedback signals. Multiple feedback signal quantization constellations and/or constellation specific feedback subchannels can be used for channel probing, such that the total feedback resolution and robustness can be enhanced, while maintaining low signaling capacity of the feedback channel.

公开(公告)号：US20100009706A1

公开(公告)日：2010-01-14

申请号：US12081761

申请日：2008-04-21

申请人： Ari Hottinen ,  Risto Wichman ,  Olav Tirkkonen

发明人： Ari Hottinen ,  Risto Wichman ,  Olav Tirkkonen

IPC分类号： H04B7/00

CPC分类号： H04B7/0452 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0658 ,  H04W52/241 ,  H04W52/247

摘要： The invention relates to a method for controlling the weighting of a data signal in the at least two antenna elements of a first radio connection unit of a radio communications system, which data signal is to be distributed for parallel transmission to a second radio connection unit to at least two beams. In order to improved such a method, it comprises: determining in the second radio connection unit a weight information enabling the first radio connection unit to determine the sets of weights for suitable beams for transmission and transmitting it to the first radio connection unit; and distributing the data signal in the first radio connection unit to those sets of weights and transmitting the data signals simultaneously via the formed beams. Alternatively or additionally, the second unit determines the number of beams to be used and informs the first unit about it. The invention equally relates to corresponding radio connection units, radio connection unit modules and radio communications systems.

摘要翻译： 本发明涉及一种用于控制无线电通信系统的第一无线电连接单元的至少两个天线单元中的数据信号的加权的方法，该数据信号将被分配用于并行传输到第二无线电连接单元 至少两个梁。 为了改进这种方法，包括：在第二无线电连接单元中确定加权信息，使得第一无线电连接单元能够确定用于传输的合适波束的权重集合并将其发送到第一无线电连接单元; 并且将第一无线电连接单元中的数据信号分配到这些权重集合，并经由形成的波束同时发送数据信号。 或者或另外，第二单元确定要使用的波束的数量，并将其通知第一单元。 本发明同样涉及对应的无线电连接单元，无线电连接单元模块和无线电通信系统。