公开(公告)号：US06728538B2

公开(公告)日：2004-04-27

申请号：US10357698

申请日：2003-02-04

申请人： Yu-Cheun Jou ,  Jun Wang ,  Ramin Rezaiifar ,  Baaziz Achour ,  Tao Chen

发明人： Yu-Cheun Jou ,  Jun Wang ,  Ramin Rezaiifar ,  Baaziz Achour ,  Tao Chen

IPC分类号： H04Q720

CPC分类号： H04W36/30 ,  H04W36/18

摘要： A method and apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station traveling in a multi-carrier wireless communication system. In a multi-carrier system, the mobile station receives the pilot channel of a base station on multiple carrier frequencies simultaneously. Fading may vary from carrier frequency to carrier frequency. New pilot strength definitions are used by the mobile station in a set of rules transmitted by the base station. The set of rules determines autonomous generation and transmission of PSMMs by the mobile station upon detection of pilots.

摘要翻译： 一种用于在多载波无线通信系统中行进的移动台生成自主导频强度测量消息（PSMM）的方法和装置。 在多载波系统中，移动台同时在多载波频率上接收基站的导频信道。 衰落可能因载波频率而异。 新的导频强度定义由移动台在由基站发送的一组规则中使用。 该组规则在检测到飞行员时确定移动台的自主生成和传输PSMM。

公开(公告)号：US06546248B1

公开(公告)日：2003-04-08

申请号：US09502279

申请日：2000-02-10

申请人： Yu-Cheun Jou ,  Jun Wang ,  Ramin Rezaiifar ,  Baaziz Achour ,  Tao Chen

发明人： Yu-Cheun Jou ,  Jun Wang ,  Ramin Rezaiifar ,  Baaziz Achour ,  Tao Chen

IPC分类号： H04Q720

CPC分类号： H04W36/30 ,  H04W36/18

摘要： A method and apparatus for generating an autonomous Pilot Strength Measurement Message (PSMM) by a mobile station traveling in a multi-carrier wireless communication system. In a multi-carrier system, the mobile station receives the pilot channel of a base station on multiple carrier frequencies simultaneously. Fading may vary from carrier frequency to carrier frequency. New pilot strength definitions are used by the mobile station in a set of rules transmitted by the base station. The set of rules determines autonomous generation and transmission of PSMMs by the mobile station upon detection of pilots.

摘要翻译： 一种用于在多载波无线通信系统中行进的移动台生成自主导频强度测量消息（PSMM）的方法和装置。 在多载波系统中，移动台同时在多载波频率上接收基站的导频信道。 衰落可能因载波频率而异。 新的导频强度定义由移动台在由基站发送的一组规则中使用。 该组规则在检测到飞行员时确定移动台的自主生成和传输PSMM。

公开(公告)号：US07286846B2

公开(公告)日：2007-10-23

申请号：US10652355

申请日：2003-08-29

申请人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

发明人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

IPC分类号： H04B7/00

CPC分类号： H04W52/38 ,  H04W52/44

摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.

摘要翻译： 在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。 在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。 当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。 当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。 零速率指示器由基站用于执行功率控制。 基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。

公开(公告)号：US08121292B2

公开(公告)日：2012-02-21

申请号：US10085581

申请日：2002-02-26

申请人： Yu-Cheun Jou ,  Yongbin Wei ,  Tao Chen

发明人： Yu-Cheun Jou ,  Yongbin Wei ,  Tao Chen

IPC分类号： H04L9/00

CPC分类号： H04L1/0072 ,  H04L1/0046 ,  H04L1/0068 ,  H04L1/0071

摘要： A control channel in a communication system transmits messages in a one or multiple-slot format. To assure consistency of a message, a content quality indicator is included in the message. Because a terminal receiving the message does not know the number of slots comprising the message, the terminal performs blind format determination by testing hypothesis for all slot formats. Unfortunately, the content of certain control messages results in control messages that appear to be valid in a sense that, the computed CRC is equal to the interpreted CRC. Consequently, the mobile station declares a valid control message, and a false-alarm event occurs. Moreover, the same control messages always result in the same false-alarm events. To prevent such repetitive incorrect determination, the content of the message is scrambled by a time-dependent scrambling sequence before transmission. Re-generating the scrambling sequence, and performing inverse to the scrambling then unscrambles the received message.

摘要翻译： 通信系统中的控制信道以一个或多个时隙格式发送消息。 为了确保消息的一致性，消息中包含内容质量指示符。 由于接收到该消息的终端不知道包含消息的时隙数，所以终端通过针对所有时隙格式的假设进行盲格式确定。 不幸的是，某些控制消息的内容导致控制消息看起来是有效的，因为所计算的CRC等于解释的CRC。 因此，移动台宣布有效的控制消息，并发生假警报事件。 此外，相同的控制消息总是导致相同的假警报事件。 为了防止这种重复的错误确定，在发送之前，通过时间相关的加扰序列对消息的内容进行加扰。 重新生成加扰序列，并且对加扰进行反相，然后解扰接收到的消息。

公开(公告)号：US20100046481A1

公开(公告)日：2010-02-25

申请号：US12550252

申请日：2009-08-28

申请人： Tao Chen ,  Yu-Cheun Jou

发明人： Tao Chen ,  Yu-Cheun Jou

IPC分类号： H04B7/216 ,  H04B7/00

CPC分类号： H04W52/265 ,  H04W52/12 ,  H04W52/16 ,  H04W52/20 ,  H04W52/267 ,  H04W52/36 ,  H04W52/40 ,  H04W52/44

摘要： Techniques to control the transmit power of multiple transmissions in a wireless communication system. A transmitting source (e.g., a base station) receives from a receiving device (e.g., a remote terminal) a number of feedbacks of one or more (coded or uncoded) bit streams and possibly one or more messages. The bit stream may include one or more power control sub-channels used to send one or more metrics (e.g., power control commands, erasure indicator bits, or quality indicator bits) for one or more sets of channels. The bits allocated for each sub-channel may be aggregated to form one or more lower rate feedback sub-streams having improved reliability. The transmit power of two or more channels can be (1) independently adjusted based on the feedbacks from respective sub-channels, or (2) adjusted together based on feedback from one sub-channel, with the power difference being adjusted based on feedback received another sub-channel.

摘要翻译： 在无线通信系统中控制多个传输的发射功率的技术。 发送源（例如，基站）从接收设备（例如，远程终端）接收一个或多个（编码或未编码）比特流以及可能的一个或多个消息的多个反馈。 比特流可以包括用于发送一个或多个信道集合的一个或多个度量（例如，功率控制命令，擦除指示符位或质量指示符位）的一个或多个功率控制子信道。 为每个子信道分配的比特可以被聚合以形成具有改善的可靠性的一个或多个较低速率的反馈子流。 两个或更多个信道的发射功率可以根据来自各个子信道的反馈独立地进行调整，或者（2）基于来自一个子信道的反馈来一起调整，并且基于所接收的反馈来调整功率差 另一个子频道。

公开(公告)号：US07117017B2

公开(公告)日：2006-10-03

申请号：US10454063

申请日：2003-06-03

申请人： Tao Chen ,  Fuyun Ling ,  Jack Holtzman ,  Yu-Cheun Jou ,  Stein A. Lundby

发明人： Tao Chen ,  Fuyun Ling ,  Jack Holtzman ,  Yu-Cheun Jou ,  Stein A. Lundby

IPC分类号： H04B1/38

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H04B7/0408 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/086

摘要： A method and apparatus for wireless communications wherein a base station transmits a signal to sending data to a subscriber station through a signal beam that sweeps through the coverage area of the base station. User data addressed to the subscriber station is buffered until the signal beam angle of the signal beam allows efficient transmission. The base station may alter the beam sweep speed or the shape of the beam's radiation pattern over time to maximize system efficiency and capacity.

公开(公告)号：US20050059401A1

公开(公告)日：2005-03-17

申请号：US10969638

申请日：2004-10-20

申请人： Tao Chen ,  Yu-Cheun Jou

发明人： Tao Chen ,  Yu-Cheun Jou

IPC分类号： H04J1/00 ,  H04W8/18 ,  H04W36/14 ,  H04Q7/20

CPC分类号： H04W36/0072 ,  H04W36/14

摘要： The present invention is directed to a digital wireless telecommunications system that includes a plurality of base station of differing spectral capabilities, and a plurality of remote stations capable of transmitting data to and receiving transmissions from the plurality of base stations. The invention herein provides a method for remote station hand-off between base stations of a narrower spectral capacity and base stations of a wider spectral capacity. A method is provided for a wireless telecommunications infrastructure to facilitate a remote station hand-off from a set of narrowband compliant base stations to at least one wideband compliant base station while a remote station is in the coverage area of both types of base stations. Additionally, the invention herein provides remote station apparatus, base station apparatus, and base station controller apparatus for performing the handoff methodology of the present invention.

公开(公告)号：US06782277B1

公开(公告)日：2004-08-24

申请号：US09409944

申请日：1999-09-30

申请人： Tao Chen ,  Fuyun Ling ,  Jack Holtzman ,  Yu-Cheun Jou ,  Stein A. Lundby

发明人： Tao Chen ,  Fuyun Ling ,  Jack Holtzman ,  Yu-Cheun Jou ,  Stein A. Lundby

IPC分类号： H04B138

CPC分类号： H01Q3/2605 ,  H01Q1/246 ,  H04B7/0408 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/086

摘要： A method and apparatus for wireless communications wherein a base station transmits a signal to sending data to a subscriber station through a signal beam that sweeps through the coverage area of the base station. User data addressed to the subscriber station is buffered until the signal beam angle of the signal beam allows efficient transmission. The base station may alter the beam sweep speed or the shape of the beam's radiation pattern over time to maximize system efficiency and capacity.

摘要翻译： 一种用于无线通信的方法和装置，其中基站通过扫描基站的覆盖区域的信号波束发送信号以向用户站发送数据。 寻址到用户站的用户数据被缓冲，直到信号波束的信号波束角允许有效的传输。 基站可以随时间改变光束扫描速度或光束辐射图的形状，以最大化系统效率和容量。

公开(公告)号：US07590095B2

公开(公告)日：2009-09-15

申请号：US09755659

申请日：2001-01-05

申请人： Tao Chen ,  Yu-Cheun Jou

发明人： Tao Chen ,  Yu-Cheun Jou

IPC分类号： H04B7/216

CPC分类号： H04W52/265 ,  H04W52/12 ,  H04W52/16 ,  H04W52/20 ,  H04W52/267 ,  H04W52/36 ,  H04W52/40 ,  H04W52/44

摘要： Techniques to control the transmit power of multiple transmissions in a wireless communication system. A transmitting source (e.g., a base station) receives from a receiving device (e.g., a remote terminal) a number of feedbacks of one or more (coded or uncoded) bit streams and possibly one or more messages. The bit stream may include one or more power control sub-channels used to send one or more metrics (e.g., power control commands, erasure indicator bits, or quality indicator bits) for one or more sets of channels. The bits allocated for each sub-channel may be aggregated to form one or more lower rate feedback sub-streams having improved reliability. The transmit power of two or more channels can be (1) independently adjusted based on the feedbacks from respective sub-channels, or (2) adjusted together based on feedback from one sub-channel, with the power difference being adjusted based on feedback received another sub-channel.

摘要翻译： 在无线通信系统中控制多个传输的发射功率的技术。 发送源（例如，基站）从接收设备（例如，远程终端）接收一个或多个（编码或未编码）比特流以及可能的一个或多个消息的多个反馈。 比特流可以包括用于发送一个或多个信道集合的一个或多个度量（例如，功率控制命令，擦除指示符位或质量指示符位）的一个或多个功率控制子信道。 为每个子信道分配的比特可以被聚合以形成具有改善的可靠性的一个或多个较低速率的反馈子流。 两个或更多个信道的发射功率可以根据来自各个子信道的反馈独立地进行调整，或者（2）基于来自一个子信道的反馈来一起调整，并且基于所接收的反馈来调整功率差 另一个子频道。

公开(公告)号：US20080194286A1

公开(公告)日：2008-08-14

申请号：US12107268

申请日：2008-04-22

申请人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

发明人： Tao Chen ,  Stein Lundby ,  Sandip Sarkar ,  Yu-Cheun Jou

IPC分类号： H04B7/00

CPC分类号： H04W52/38 ,  H04W52/44

摘要： Systems and methods for controlling the power level for a mobile station during periods when no data is being transmitted by the mobile station. In one embodiment, data is intermittently transmitted from a mobile station to a base station on a reverse-link traffic channel. When data is being transmitted on the traffic channel, the transmitted data is used by the base station to perform power control operations (e.g., incrementing or decrementing the mobile station's power level, based upon comparison of a received SNR to a target SNR). When no data is being transmitted on the traffic channel, a “zero-rate indicator” is transmitted on the rate indicator channel. The zero-rate indicator is used by the base station to perform power control. Power control based on the zero-rate indicator may use velocity profiles, reliability metrics or other techniques to control adjustment of the power level.

摘要翻译： 在移动台没有发送数据的时段期间控制移动台的功率电平的系统和方法。 在一个实施例中，数据在反向链路业务信道上从移动站间歇地发送到基站。 当在业务信道上发送数据时，基站使用发送的数据来执行功率控制操作（例如，基于接收到的SNR与目标SNR的比较来增加或减少移动台的功率电平）。 当业务信道上没有发送数据时，在速率指示符信道上发送“零速率指示符”。 零速率指示器由基站用于执行功率控制。 基于零速率指示器的功率控制可以使用速度曲线，可靠性度量或其他技术来控制功率水平的调节。