公开(公告)号：US07228134B2

公开(公告)日：2007-06-05

申请号：US10463995

申请日：2003-06-17

申请人： Asif D Gandhi ,  Mathew Thomas ,  Lily H Zhu

发明人： Asif D Gandhi ,  Mathew Thomas ,  Lily H Zhu

IPC分类号： H04Q7/20

CPC分类号： H04W48/06 ,  H04W52/50 ,  H04W74/002 ,  H04W74/0833

摘要： When an overload condition is determined to exist at a base station in a wireless communications system based on the number of unsuccessful access attempts to access the system relative to the successful access attempts to access the system, the base station broadcasts a message to each mobile terminal within its coverage area that changes at least one access probe-related parameter associated with at least one of: the number, the frequency, and the power intensity of the access probes made by these mobile terminals as they attempt to establish access to the wireless network. By so limiting these access probes in some manner when an overload condition is present, the interference caused on the reverse link by many mobile terminals attempting access is reduced.

摘要翻译： 当基于相对于访问系统的成功访问尝试访问系统的不成功访问次数而确定在无线通信系统中的基站处存在过载状况时，基站向每个移动终端广播消息 在其覆盖区域内改变至少一个接入探针相关参数，其与以下至少一个相关联：当这些移动终端试图建立对无线网络的接入时，由这些移动终端制造的接入探测器的数量，频率和功率强度 。 通过在存在过载条件的情况下以某种方式限制这些接入探测器，减少了尝试接入的许多移动终端在反向链路上引起的干扰。

公开(公告)号：US07565152B2

公开(公告)日：2009-07-21

申请号：US10632065

申请日：2003-07-31

申请人： Asif D Gandhi ,  Frances Jiang ,  Mathew Thomas ,  Stanley Vitebsky

发明人： Asif D Gandhi ,  Frances Jiang ,  Mathew Thomas ,  Stanley Vitebsky

IPC分类号： H04W72/00

CPC分类号： H04W28/12 ,  H04W74/08

摘要： A method of wireless communication over the reverse link. The method may include evaluating a reverse link loading. This evaluation step may involve examining at least two resources associated with reverse link loading within a first time period. Thereafter, a message is broadcast containing information regarding the availability of resources. This message is generated in response to the evaluated reverse link loading. This availability of resources message may correspond with an overload condition, increasing a number of active connections, decreasing the number of active connections, increasing an available transmit rate, maintaining the available transmit rate and/or decreasing the available transmit rate. In one example, the availability of resources message comprises a reverse activity bit.

摘要翻译： 一种通过反向链路进行无线通信的方法。 该方法可以包括评估反向链路负载。 该评估步骤可以包括在第一时间段内检查与反向链路加载相关联的至少两个资源。 此后，广播包含关于资源可用性的信息的消息。 响应于所评估的反向链路加载而产生该消息。 资源消息的这种可用性可以对应于过载状况，增加活动连接的数量，减少活动连接的数量，增加可用的传输速率，维持可用传输速率和/或减小可用传输速率。 在一个示例中，资源消息的可用性包括反向活动比特。

公开(公告)号：US06968201B1

公开(公告)日：2005-11-22

申请号：US09413036

申请日：1999-10-06

申请人： Asif D. Gandhi ,  Lei Song ,  Mathew Thomas ,  Stanley Vitebsky

发明人： Asif D. Gandhi ,  Lei Song ,  Mathew Thomas ,  Stanley Vitebsky

IPC分类号： H04B7/005 ,  H04B7/26 ,  H04Q7/20

CPC分类号： H04W52/146 ,  H04W52/24

摘要： A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

公开(公告)号：US06618598B1

公开(公告)日：2003-09-09

申请号：US09676179

申请日：2000-09-29

申请人： Asif D Gandhi ,  Raafat E Kamel ,  Andrew R Kostic ,  Alexandro Salvarani ,  Mathew Thomas ,  Stanley Vitebsky ,  Carl Francis Weaver

发明人： Asif D Gandhi ,  Raafat E Kamel ,  Andrew R Kostic ,  Alexandro Salvarani ,  Mathew Thomas ,  Stanley Vitebsky ,  Carl Francis Weaver

IPC分类号： H04B700

CPC分类号： H04W52/50 ,  H04W52/16 ,  H04W52/26

摘要： A method for determining the initial power to be allocated to a secondary channel having a desired data rate. An SNR setpoint is first calculated where such setpoint is based on the SNR setpoint of the associated primary channel and system offset values. The initial power is then calculated based on the calculated setpoint.

摘要翻译： 一种用于确定要分配给具有期望数据速率的辅助信道的初始功率的方法。 首先计算SNR设定点，其中该设定点基于相关联的主通道和系统偏移值的SNR设定点。 然后根据计算的设定值计算初始功率。

公开(公告)号：US07453945B2

公开(公告)日：2008-11-18

申请号：US10654977

申请日：2003-09-05

申请人： Charles W. Boettcher ,  Edward Ellis Eibling ,  Gregg Nardozza ,  Mathew Thomas ,  Matthijs A. Visser ,  Lily H. Zhu

发明人： Charles W. Boettcher ,  Edward Ellis Eibling ,  Gregg Nardozza ,  Mathew Thomas ,  Matthijs A. Visser ,  Lily H. Zhu

IPC分类号： H04K1/10 ,  H04L25/03

CPC分类号： H04W52/52 ,  H03F1/02 ,  H03F3/21 ,  H03G3/3042 ,  H04B1/0475 ,  H04B2201/70706 ,  H04L5/06

摘要： The input (and output) power of a multi-carrier amplifier can be controlled to allow the amplifier to operate at high RF power levels and still remain within a power rating profile. The amplifier (or amplifiers) power is controlled using an aggregate scaling factor. The aggregate scaling factor is generated from a plurality of amplifier scaling factors. Each amplifier scaling factor is generated based on a comparison of a time-averaged total power and a corresponding threshold.

摘要翻译： 可以控制多载波放大器的输入（和输出）功率，以允许放大器以高RF功率电平工作，并且仍然保持在额定功率曲线内。 放大器（或放大器）功率使用聚集缩放因子进行控制。 聚合缩放因子由多个放大器缩放因子产生。 基于时间平均总功率和对应阈值的比较来生成每个放大器缩放因子。

公开(公告)号：US20060229025A1

公开(公告)日：2006-10-12

申请号：US11094594

申请日：2005-03-30

申请人： Asif Gandhi ,  Mathew Thomas

发明人： Asif Gandhi ,  Mathew Thomas

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/146 ,  H04W52/12 ,  H04W52/248 ,  H04W52/343 ,  H04W88/08

摘要： A method for extracting the optimal capacity in a cellular network reverse link involves controlling the reverse link Eb/No setpoint (or other control setting) based on the aggregate reverse link load and channel condition. The cellular network includes a plurality of mobile stations that wirelessly communicate with a base station over a reverse link, using a CDMA or similar communications protocol. The base station calculates a received signal strength indicator (“RSSI”). If the RSSI rises above a designated threshold level, the base station calculates a scaling factor. The base station then scales its reverse link Eb/No setpoint by applying the scaling factor to the Eb/No setpoint. Then, according to the new, scaled Eb/No setpoint, the base station issues closed loop power control commands to the mobile stations, thereby adjusting their transmit power according to the new, scaled Eb/No setpoint.

摘要翻译： 用于提取蜂窝网络反向链路中的最佳容量的方法包括基于聚合反向链路负载和信道状况来控制反向链路Eb / No设定点（或其他控制设置）。 蜂窝网络包括使用CDMA或类似通信协议通过反向链路与基站无线通信的多个移动站。 基站计算接收信号强度指示符（“RSSI”）。 如果RSSI上升到指定的阈值水平以上，则基站计算缩放因子。 然后，基站通过将比例因子应用于Eb / No设定值来缩放其反向链路Eb / No设定值。 然后，根据新的Eb / No设定点，基站向移动台发出闭环功率控制命令，从而根据新的Eb / No设定点来调整发射功率。

公开(公告)号：US20050026624A1

公开(公告)日：2005-02-03

申请号：US10632065

申请日：2003-07-31

申请人： Asif Gandhi ,  Frances Jiang ,  Mathew Thomas ,  Stanley Vitebsky

发明人： Asif Gandhi ,  Frances Jiang ,  Mathew Thomas ,  Stanley Vitebsky

IPC分类号： H04W28/12 ,  H04W74/08 ,  H04Q7/00

CPC分类号： H04W28/12 ,  H04W74/08

摘要： A method of wireless communication over the reverse link. The method may include evaluating a reverse link loading. This evaluation step may involve examining at least two resources associated with reverse link loading within a first time period. Thereafter, a message is broadcast containing information regarding the availability of resources. This message is generated in response to the evaluated reverse link loading. This availability of resources message may correspond with an overload condition, increasing a number of active connections, decreasing the number of active connections, increasing an available transmit rate, maintaining the available transmit rate and/or decreasing the available transmit rate. In one example, the availability of resources message comprises a reverse activity bit.

摘要翻译： 一种通过反向链路进行无线通信的方法。 该方法可以包括评估反向链路负载。 该评估步骤可以包括在第一时间段内检查与反向链路加载相关联的至少两个资源。 此后，广播包含关于资源可用性的信息的消息。 响应于所评估的反向链路加载而产生该消息。 资源消息的这种可用性可以对应于过载状况，增加活动连接的数量，减少活动连接的数量，增加可用的传输速率，维持可用传输速率和/或减小可用传输速率。 在一个示例中，资源消息的可用性包括反向活动比特。

公开(公告)号：US06609007B1

公开(公告)日：2003-08-19

申请号：US09395494

申请日：1999-09-14

申请人： Edward Ellis Eibling ,  Raafat Edward Kamel ,  Wen-Yi Kuo ,  Mathew Thomas ,  Carl Francis Weaver

发明人： Edward Ellis Eibling ,  Raafat Edward Kamel ,  Wen-Yi Kuo ,  Mathew Thomas ,  Carl Francis Weaver

IPC分类号： H04Q720

CPC分类号： H04W52/226 ,  H04W52/143

摘要： A method that adjusts the power level of a set of forward-link signals of a base station responsive to the loading of the forward link as determined by a power level measurement of the signal set. One power level measurement is a pilot fraction of the forward link. Other power level measurements, such as the signal set's power level, can be used, alone or in combination, instead of or in addition to the pilot fraction of the forward link to adjust the power level of the signal set. The power level of the signal set can be changed in any manner, including by scaling it by a scaling factor, or by increasing the power level by a fixed or a variable amount. The power level measurement of the signal set is obtained during a current time period. The scaling factor that will be used in the subsequent time period is determined using the power level measurement. In one embodiment of the invention, the scaling factor can be obtained from a look-up table that is based on the power level measurement. If the cell containing the base station includes several sectors, the power level of the signal set in a sector is adjusted when the power level measurement in that sector indicates that the power level should be adjusted.

摘要翻译： 一种响应于由信号组的功率电平测量确定的正向链路的加载来调整基站的一组前向链路信号的功率电平的方法。 一个功率电平测量是前向链路的导频部分。 可以单独或组合地使用诸如信号组的功率电平的其它功率电平测量，而不是前导链路的导频部分或除了前向链路的导频部分之外，以调整信号集的功率电平。 信号组的功率电平可以以任何方式改变，包括通过缩放比例缩放，或通过将功率电平增加固定或可变量。 在当前时间段期间获得信号组的功率电平测量。 将在后续时间段内使用的缩放因子使用功率电平测量来确定。 在本发明的一个实施例中，可以从基于功率电平测量的查找表中获得缩放因子。 如果包含基站的小区包括几个扇区，则当扇区中的功率电平测量指示应调整功率电平时，调整扇区中设置的信号的功率电平。

公开(公告)号：US06487415B1

公开(公告)日：2002-11-26

申请号：US09356816

申请日：1999-07-19

申请人： Edward Ellis Eibling ,  Asif Dawoodi Ganhi ,  Wen-Yi Kuo ,  Mathew Thomas ,  Carl Francis Weaver

发明人： Edward Ellis Eibling ,  Asif Dawoodi Ganhi ,  Wen-Yi Kuo ,  Mathew Thomas ,  Carl Francis Weaver

IPC分类号： H04B7216

CPC分类号： H04W52/225 ,  H04W72/085

摘要： A method that initiates call blocking responsive to a call-quality measurement of the forward link. The call-quality measurement is a measurement of how well a mobile terminal is able to receive the forward link. One call-quality measurement is a pilot fraction of the forward link, which is a ratio of the pilot's power level to the power level of a set of forward-link signals of a base station. Call blocking is initiated when an average pilot fraction is below a pilot-fraction blocking threshold. The pilot's power level is obtained for a time period, and the signal set's power level is obtained for the same time period. The pilot fraction is determined for the time period, and then used to determine the average pilot fraction for the time period. The average pilot fraction for the current time period is based on a pilot fraction for the current time period, and an average pilot fraction for a previous time period. When the average pilot fraction is below the pilot-fraction blocking threshold, call blocking is initiated. The pilot-fraction blocking threshold is preferably based on: 1) the pilot fraction when the base station is at full load; 2) the size, shape, and terrain of the cell; and 3) the aggressiveness of the overload control. In the preferred embodiment, the signal set includes all of the signals generated by the base station, alternatively, the signal set can include fewer than all the signals generated by the base station. If the cell includes several sectors, the call blocking is initiated on a sector basis when the average pilot fraction of the sector is below the pilot-fraction blocking threshold. Other call-quality measurements, such as the forward link's frame error rate, the number of dropped calls, or the Power Measurement Report Message (PMRM), can be used, alone or in combination, instead of or in addition to the pilot fraction of the forward link to determine whether call blocking should be initiated. Determining whether call blocking should be initiated using one of the other call-quality measurements is performed in a similar manner as for the pilot fraction. Initiating call blocking using several call-quality measurements involves initiating call blocking when any one of the call-quality measurements indicates that call blocking should be initiated. Alternatively, call blocking can be initiated when several of the call quality measurements indicate that call blocking should be initiated.

公开(公告)号：US20090279479A1

公开(公告)日：2009-11-12

申请号：US12149722

申请日：2008-05-07

申请人： Asif Dawoodi Gandhi ,  Devesh T. Patel ,  Amit Shah ,  Mathew Thomas

发明人： Asif Dawoodi Gandhi ,  Devesh T. Patel ,  Amit Shah ,  Mathew Thomas

IPC分类号： H04W4/00

CPC分类号： H04W28/22 ,  H04W68/02 ,  H04W72/14

摘要： A wireless communication system is provided that includes a network and a plurality of access terminals. The plurality of access terminals includes a first group of access terminals configured to receive control information at a first data rate and send a response to the received control information, as well as a second group of access terminals configured to receive the control information at a second data rate and send a response to the received control information. The second data rate is higher than the first data rate. The network is configured to send the control information via a control channel at the first data rate and the second data rate, receive responses from the access terminals, and establish a traffic channel with at least one of the access terminals based on the control information and associated response from at least one of the access terminals.

摘要翻译： 提供一种包括网络和多个接入终端的无线通信系统。 所述多个接入终端包括第一组接入终端，被配置为以第一数据速率接收控制信息并向所接收的控制信息发送响应，以及第二组接入终端，被配置为在第二数据接收控制信息 数据速率并发送对接收的控制信息的响应。 第二数据速率高于第一数据速率。 网络被配置为经由控制信道以第一数据速率和第二数据速率发送控制信息，接收来自接入终端的响应，并且基于控制信息与至少一个接入终端建立业务信道，以及 来自至少一个接入终端的相关联的响应。