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公开(公告)号：US06961362B2
公开(公告)日：2005-11-01
申请号：US09892459
申请日：2001-06-28
CPC分类号： H04W52/08 , H04B1/7107 , H04W52/12 , H04W52/20 , H04W52/24
摘要： The purpose of the present invention is to offer a structure of a CDMA system having a power control method and interference cancellers which can effectively increase the system capacity and is resistant to sudden changes on the communication path, and to achieve a power control method with a fast response capable of preventing unnecessary increases in the transmission power (and multiple access interference) of the uplink by reflecting the values of the post-interference cancellation signal-to-interference power ratio in the generation of power control command information. The invention is directed to a power control method in a communication system for performing communications by code-division multiple access between a mobile station and base station, wherein a multiple access interference signal contained in a reception signal from the mobile station is cancelled, a post-interference cancellation signal-to-interference power ratio of the reception signal currently received is estimated, a power control command is generated by comparing the estimated post-interference cancellation signal-to-interference power ratio and a target value for power control, and transmitting this power control command to the mobile station to control the transmission power of the mobile station.
摘要翻译： 本发明的目的是提供具有功率控制方法和干扰消除器的CDMA系统的结构，其可以有效地增加系统容量并且抵抗通信路径上的突然变化，并且实现具有 能够通过在生成功率控制命令信息中反映干扰后消除信号与干扰功率比的值来防止上行链路的发送功率（和多址干扰）的不必要的增加的快速响应。 本发明涉及一种通信系统中的功率控制方法，用于通过移动站与基站之间的码分多址进行通信，其中包含在来自移动台的接收信号中的多址干扰信号被取消， 估计当前接收到的接收信号的干扰消除信号与干扰功率比，通过比较估计的干扰后消除信号与干扰功率比和用于功率控制的目标值，生成功率控制命令，并发送 该功率控制命令到移动台来控制移动台的发射功率。
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2.发明申请TRANSMISSION POWER CONTROL SYSTEM AND APPARATUS FOR MOBILE COMMUNICATION SYSTEM 审中-公开传动功率控制系统和移动通信系统的设备公开(公告)号：US20090005107A1
公开(公告)日：2009-01-01
申请号：US12198918
申请日：2008-08-27
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
IPC分类号： H04B7/00
CPC分类号： H04W52/24 , H04W52/362
摘要： A method and apparatus for controlling the power of a signal transmitted between a base station and a mobile terminal which constitute a mobile communication system. At least one of the base station and the mobile terminal has functions to compare a predetermined reference value and a necessary transmission power obtained as a result of transmission power control in order to compensate for a signal intensity fluctuation occurring on a link between the base station and the mobile terminal, temporarily stopping the transmission if the necessary transmission power is larger than a predetermined permissible value, and transmit the signal if the necessary transmission power is equal to or smaller than the predetermined permissible value.
摘要翻译： 一种用于控制在构成移动通信系统的基站和移动终端之间传输的信号的功率的方法和装置。 基站和移动终端中的至少一个具有将预定参考值和作为发送功率控制的结果获得的必要发送功率进行比较的功能，以便补偿基站与基站之间的链路上发生的信号强度波动 如果必要的发送功率大于预定的允许值，则暂时停止发送，并且如果必要的发送功率等于或小于预定的允许值则发送该信号。
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公开(公告)号：US06463296B1
公开(公告)日：2002-10-08
申请号：US09251018
申请日：1999-02-16
IPC分类号： H04Q720
摘要： A method for controlling the power transmission levels in a spread spectrum or CDMA cellular system is disclosed, in which the decision to increase or decrease the transmission power level of a mobile station or base station, and the amount of any such increase or decrease made, is based on the weighted combination of a plurality of factors that indicate existing channel conditions. For example, the weight can be set according to the reliability of each channel condition factor involved.
摘要翻译： 公开了一种用于控制扩频或CDMA蜂窝系统中的功率传输电平的方法，其中增加或减少移动台或基站的发射功率电平的决定以及任何这种增加或减少的量， 基于指示现有信道条件的多个因素的加权组合。 例如，可以根据所涉及的每个信道条件因素的可靠性设置权重。
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4.发明授权
公开(公告)号：US5991330A
公开(公告)日：1999-11-23
申请号：US884002
申请日：1997-06-27
申请人： Erik Dahlman , Maria Gustafsson , Riaz Esmailzadeh
发明人： Erik Dahlman , Maria Gustafsson , Riaz Esmailzadeh
IPC分类号： H04B1/7073 , H04B1/7075 , H04L7/00 , H04Q7/38 , H04B15/00
CPC分类号： H04B1/70752 , H04B1/70735 , H04B2201/70701
摘要： Each frame of a pilot channel transmission in a spread spectrum communications system is divided into a plurality of synchronization slots. Each of the synchronization slots includes a pilot code, and at least one of the synchronization slots further includes a framing synchronization code. To extract frame and slot synchronization information from the pilot channel transmission, pilot code timing is first identified by applying a matched filter or correlation to a received pilot signal, identifying peaks, and using the peaks to find a timing reference indicative of synchronization slot boundaries. Next, the set of known framing synchronization codes are correlated with the received signal over the included found synchronization slots. Given that the location within the frame of the known framing synchronization code(s) is known, once a correlation match is found at a certain slot location, the boundary of the frame (i.e., the frame synchronization) relative thereto is then also known.
摘要翻译： 扩频通信系统中的导频信道传输的每一帧被分成多个同步时隙。 每个同步时隙包括导频代码，并且至少一个同步时隙还包括成帧同步码。 为了从导频信道传输中提取帧和时隙同步信息，首先通过对接收到的导频信号应用匹配的滤波器或相关性来识别导频代码定时，识别峰值，并且使用该峰值找到指示同步时隙边界的定时参考。 接下来，已知的成帧同步码的集合通过所包含的已发现的同步时隙与接收的信号相关。 假定已知成帧同步码的帧内的位置是已知的，一旦在某个时隙位置处找到相关匹配，则帧的边界（即，帧同步）也是已知的。
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公开(公告)号：US07545789B2
公开(公告)日：2009-06-09
申请号：US10834001
申请日：2004-04-29
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
IPC分类号： H04B7/216
CPC分类号： H04W72/1278 , H04B1/707 , H04B7/2628 , H04W74/008 , H04W74/04 , H04W74/0833
摘要： In order to accomplish efficient communication of data between a base station and a plurality of mobile terminals, particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.
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6.发明授权Transmission power control method and apparatus for mobile communication system 有权用于移动通信系统的传输功率控制方法和装置公开(公告)号：US07421283B2
公开(公告)日：2008-09-02
申请号：US11544655
申请日：2006-10-10
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
CPC分类号： H04W52/24 , H04W52/362
摘要： A method and apparatus for controlling the power of a signal transmitted between a base station and a mobile terminal which constitute a mobile communication system. At least one of the base station and the mobile terminal has functions to compare a predetermined reference value and a necessary transmission power obtained as a result of transmission power control in order to compensate for a signal intensity fluctuation occurring on a link between the base station and the mobile terminal, temporarily stopping the transmission if the necessary transmission power is larger than a predetermined permissible value, and transmit the signal if the necessary transmission power is equal to or smaller than the predetermined permissible value.
摘要翻译： 一种用于控制在构成移动通信系统的基站和移动终端之间传输的信号的功率的方法和装置。 基站和移动终端中的至少一个具有将预定参考值和作为发送功率控制的结果获得的必要发送功率进行比较的功能，以便补偿基站与基站之间的链路上发生的信号强度波动 如果必要的发送功率大于预定的允许值，则暂时停止发送，并且如果必要的发送功率等于或小于预定的允许值则发送该信号。
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公开(公告)号：US07065055B1
公开(公告)日：2006-06-20
申请号：US09665200
申请日：2000-09-18
申请人： Jonas Karlsson , Riaz Esmailzadeh
发明人： Jonas Karlsson , Riaz Esmailzadeh
IPC分类号： H04B1/44
CPC分类号： H04B1/7103 , H04B1/7107 , H04B2201/70705 , H04B2201/70707
摘要： Method and apparatus for minimizing the processing delay incurred by an IC receiver over conventional receivers in a CDMA cellular system are disclosed. The method and apparatus involve operating the conventional receiver and the IC receiver in parallel to each other. Data from the conventional receiver are then used to supplement data from the IC receiver in order to minimize the delays incurred by the IC receiver.
摘要翻译： 公开了一种用于最小化IC接收机在CDMA蜂窝系统中的常规接收机所引起的处理延迟的方法和装置。 所述方法和装置包括相互并行地操作常规接收器和IC接收器。 然后使用来自常规接收机的数据来补充来自IC接收机的数据，以便最小化由IC接收器引起的延迟。
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8.发明授权Transmission power control method and apparatus for mobile communication system 有权用于移动通信系统的传输功率控制方法和装置公开(公告)号：US06546260B2
公开(公告)日：2003-04-08
申请号：US09729272
申请日：2000-12-05
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
IPC分类号： H04Q7720
CPC分类号： H04W52/24 , H04W52/362
摘要： A method and apparatus for controlling the power of a signal transmitted between a base station and a mobile terminal which constitute a mobile communication system. At least one of the base station and the mobile terminal has functions to compare a predetermined reference value and a necessary transmission power obtained as a result of transmission power control in order to compensate for a signal intensity fluctuation occurring on a link between the base station and the mobile terminal, temporarily stopping the transmission if the necessary transmission power is larger than a predetermined permissible value, and transmit the signal if the necessary transmission power is equal to or smaller than the predetermined permissible value.
摘要翻译： 一种用于控制在构成移动通信系统的基站和移动终端之间传输的信号的功率的方法和装置。 基站和移动终端中的至少一个具有将预定参考值和作为发送功率控制的结果获得的必要发送功率进行比较的功能，以便补偿基站与基站之间的链路上发生的信号强度波动 如果必要的发送功率大于预定的允许值，则暂时停止发送，并且如果必要的发送功率等于或小于预定的允许值则发送该信号。
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公开(公告)号：US6111869A
公开(公告)日：2000-08-29
申请号：US907088
申请日：1997-08-06
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
IPC分类号： H04B1/707 , H04B7/26 , H04J13/18 , H04W4/00 , H04W72/04 , H04W72/12 , H04W74/04 , H04W74/08 , H04W92/10 , H04B7/216
CPC分类号： H04B7/2628 , H04B1/707
摘要： In order to accomplish efficient communication of data between a base station and a plurality of mobile terminals, particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.
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公开(公告)号：US20120257587A1
公开(公告)日：2012-10-11
申请号：US13490744
申请日：2012-06-07
申请人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
发明人： Riaz Esmailzadeh , Takashi Yano , Nobukazu Doi
IPC分类号： H04W72/12
CPC分类号： H04B7/2628 , H04B1/707
摘要： Particular orthogonal codes are transmitted from the mobile stations to the base station as alert signals indicating the presence of data to be transmitted. The base station checks whether particular orthogonal codes are contained in the alert signals, and when the particular orthogonal codes are detected in the alert signals, information representing the detected orthogonal codes and the schedules for transmitting the data from the mobile terminals to the base station are transmitted from the base station to the mobile terminals as an alert response to the alert signals. When the information representing the orthogonal codes used for the alert signals are contained in the alert response transmitted from the base station to the mobile terminals, the data waiting to be transmitted is transmitted from the mobile terminals to the base station according the data transmission schedules in the alert response.
摘要翻译： 将特定的正交码从移动台发送到基站，作为指示要发送的数据的存在的警报信号。 基站检查警报信号中是否包含特定正交码，并且当在警报信号中检测到特定的正交码时，表示检测到的正交码的信息和用于从移动终端向基站发送数据的时间表是 从基站发送到移动终端作为对警报信号的警报响应。 当表示用于警报信号的正交码的信息被包含在从基站发送到移动终端的警报响应中时，等待发送的数据根据数据传输时间表从移动终端发送到基站 警报响应。
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