公开(公告)号：US08761765B1

公开(公告)日：2014-06-24

申请号：US12686507

申请日：2010-01-13

申请人： Sachin R. Vargantwar ,  Manoj Shetty ,  Bhagwan Khanka ,  Deveshkumar N. Rai

发明人： Sachin R. Vargantwar ,  Manoj Shetty ,  Bhagwan Khanka ,  Deveshkumar N. Rai

IPC分类号： H04W4/00

CPC分类号： H04B1/70754

摘要： Methods and apparatus are provided for a wireless communication device (WCD) to utilize one or more search windows to capture both an earliest-received signal and a strongest received signal. In an embodiment, in a first time period, the WCD detects an arrival time of an earliest-received signal and an arrival time of a strongest received signal in one or more search windows for each of at least one set of signals. The WCD then centers a first search window based on the arrival time of the earliest-received signal and centers a second search window based on the arrival time of the strongest received signal for each of the at least one set of signals. In a second time period, the WCD searches for signals using the first and second search windows.

摘要翻译： 为无线通信设备（WCD）提供了利用一个或多个搜索窗口捕获最早接收信号和最强接收信号的方法和装置。 在一个实施例中，在第一时间段中，WCD针对至少一组信号中的每一个检测最早接收信号的到达时间和最强接收信号的到达时间在一个或多个搜索窗口中。 然后，WCD基于最早接收信号的到达时间居中第一搜索窗口，并且基于针对至少一组信号中的每一个的最强接收信号的到达时间居中第二搜索窗口。 在第二时间段中，WCD使用第一和第二搜索窗口搜索信号。

公开(公告)号：US08554212B1

公开(公告)日：2013-10-08

申请号：US12706244

申请日：2010-02-16

申请人： Deveshkumar N. Rai ,  Sachin R. Vargantwar ,  Manoj Shetty ,  Bhagwan Khanka

发明人： Deveshkumar N. Rai ,  Sachin R. Vargantwar ,  Manoj Shetty ,  Bhagwan Khanka

IPC分类号： H04W4/00 ,  H04B1/18

CPC分类号： H04W36/0061 ,  H04W36/0094

摘要： A mobile station that is being served by a current sector receives a neighbor list that identifies a plurality of neighboring sectors and a respective priority for each neighboring sector. For each neighboring sector, the mobile station scans for the sector's pilot signal at a respective scanning frequency during a measurement interval. The scanning frequency for a sector defines how frequently the mobile station scans for the sector's pilot signal during the measurement interval. The mobile station selects a scanning frequency for a neighboring sector based on at least a signal strength of the current sector and the neighboring sector's priority. When the current sector's signal strength is high, the mobile station scans for high-priority sectors more frequently than low-priority sectors. When the current sector's signal strength is low, the mobile station scans for low-priority sectors more frequently than high-priority sectors.

摘要翻译： 由当前扇区服务的移动台接收识别多个相邻扇区的邻居列表以及每个相邻扇区的相应优先级。 对于每个相邻扇区，移动站在测量间隔期间以相应的扫描频率扫描扇区的导频信号。 扇区的扫描频率定义了在测量间隔期间移动台扫描扇区导频信号的频率。 移动台基于至少当前扇区的信号强度和相邻扇区的优先级来选择相邻扇区的扫描频率。 当当前扇区的信号强度高时，移动台比低优先级扇区更频繁地扫描高优先级扇区。 当当前的信号强度低时，移动台比高优先级扇区更频繁地扫描低优先级扇区。

公开(公告)号：US08761775B1

公开(公告)日：2014-06-24

申请号：US12787117

申请日：2010-05-25

申请人： Bhagwan Khanka ,  Sachin R. Vargantwar ,  Deveshkumar N. Rai ,  Manoj Shetty

发明人： Bhagwan Khanka ,  Sachin R. Vargantwar ,  Deveshkumar N. Rai ,  Manoj Shetty

IPC分类号： H04W36/00

CPC分类号： H04W36/18 ,  H04W36/22

摘要： A method and corresponding apparatus or system is disclosed for managing operating in a cellular wireless communication system. The method involves detecting a threshold transition of user devices (generally any wireless communication devices) that are actively operating in a given wireless coverage area into a state of soft handoff between the given coverage area and another coverage area, and perhaps a resulting threshold increase in total transmission power in the given coverage area, and responsively forcing out of the given coverage area at least one user device that is in soft handoff with the given coverage area. The method may thereby help to avoid or minimize an undesirable cyclic power increase effect that could lead to power overload.

摘要翻译： 公开了用于管理蜂窝无线通信系统中的操作的方法和相应的装置或系统。 该方法涉及检测在给定无线覆盖区域中主动操作的用户设备（通常为任何无线通信设备）到给定覆盖区域和另一覆盖区域之间的软切换的状态的阈值转换，并且可能导致阈值增加 在给定覆盖区域内的总发射功率，以及响应地强制在给定覆盖区域内与给定覆盖区域处于软切换的至少一个用户设备。 该方法可从而有助于避免或最小化可能导致电力过载的不期望的循环功率增加效应。

公开(公告)号：US08626224B1

公开(公告)日：2014-01-07

申请号：US12699244

申请日：2010-02-03

申请人： Sachin R. Vargantwar ,  Bhagwan Khanka ,  Deveshkumar N. Rai

发明人： Sachin R. Vargantwar ,  Bhagwan Khanka ,  Deveshkumar N. Rai

IPC分类号： H04B7/00

CPC分类号： H04W52/146 ,  H04W52/243 ,  H04W52/50

摘要： Exemplary methods and systems for determining initial transmit power are disclosed herein. An exemplary method involves a mobile station (1) determining an interference level for the forward link; (2) if the determined interference level is greater than a threshold interference level, then determining an interference correction factor to be equal to the minimum of (a) the threshold interference level minus the determined interference level and (b) a predetermined constant; (3) if the determined interference level is less than the threshold interference level, then determining the interference correction factor to be equal to the minimum of: (a) the maximum of: (i) the threshold interference level minus the determined interference level, and (ii) zero, and (b) a predetermined constant; (4) using the determined interference correction factor as a basis for determining an initial transmit power level; and (5) transmitting an initial access probe to the base station at the determined initial transmit power level.

摘要翻译： 本文公开了用于确定初始发射功率的示例性方法和系统。 一种示例性方法涉及移动台（1）确定前向链路的干扰电平; （2）如果确定的干扰电平大于阈值干扰电平，则确定干扰校正因子等于（a）阈值干扰电平减去所确定的干扰电平的最小值，以及（b）预定常数; （3）如果确定的干扰电平小于阈值干扰电平，则确定干扰校正因子等于以下最小值：（a）最大值：（i）阈值干扰电平减去所确定的干扰电平， 和（ii）零，和（b）预定常数; （4）使用所确定的干扰校正因子作为确定初始发射功率电平的基础; 和（5）以确定的初始发射功率电平向基站发送初始接入探测。

公开(公告)号：US08855686B1

公开(公告)日：2014-10-07

申请号：US12173681

申请日：2008-07-15

申请人： Siddharth S. Oroskar ,  Sachin R. Vargantwar ,  Deveshkumar N. Rai ,  Manoj Shetty ,  Ashvini G. Canjeevaram

发明人： Siddharth S. Oroskar ,  Sachin R. Vargantwar ,  Deveshkumar N. Rai ,  Manoj Shetty ,  Ashvini G. Canjeevaram

IPC分类号： H04W64/00

CPC分类号： H04W68/04

摘要： A method and system of paging a mobile station. In response to receiving a request to set up a communication with a mobile station, a radio network controller (RNC) may identify a last-known location of the mobile station. The RNC may then identify two or more paging areas based on the mobile station's last-known location. In turn, the RNC may determine an indication of traffic for each of the identified paging areas. For example, the RNC may determine an indication of traffic for a paging area by (a) determining a number of communication requests received by BTSs located in the paging area within a given time period, (b) determining a number of BTSs located in the paging area, and (c) dividing the number of communication requests by the number of BTSs. Thereafter, the RNC may page the mobile station in the identified paging area having the highest indication of traffic.

摘要翻译： 一种寻呼移动台的方法和系统。 响应于接收到与移动台建立通信的请求，无线电网络控制器（RNC）可以识别移动台的最后已知位置。 然后，RNC可以基于移动台的最后知道的位置来识别两个或更多个寻呼区域。 反过来，RNC可以确定每个识别的寻呼区域的业务的指示。 例如，RNC可以通过以下步骤来确定寻呼区域的业务的指示：（a）确定在给定时间段内由寻呼区域中的BTS接收的通信请求的数量，（b）确定位于 寻呼区域，以及（c）将通信请求的数量除以BTS的数量。 此后，RNC可以在具有最高业务指示的所标识的寻呼区域中寻址移动台。

公开(公告)号：US08737999B1

公开(公告)日：2014-05-27

申请号：US12025608

申请日：2008-02-04

申请人： Sachin R. Vargantwar ,  Ashvini G. Canjeevaram ,  Manoj Shetty ,  Siddharth S. Oroskar ,  Deveshkumar N. Rai

发明人： Sachin R. Vargantwar ,  Ashvini G. Canjeevaram ,  Manoj Shetty ,  Siddharth S. Oroskar ,  Deveshkumar N. Rai

IPC分类号： H04W36/00

CPC分类号： H04W36/0055

摘要： A method and system of controlling switching of an access terminal between cells of an access network that includes a first BTS serving a first cell and a second BTS serving a second cell. While the first BTS is receiving from the access terminal one or more consecutive requests for current service in the first cell and serving the access terminal, the second BTS receives from the access terminal a request for future service in the second cell. In response, the second BTS prepares to serve the access terminal in the second cell. After the second BTS has finished preparing, the first BTS sends to the access terminal an instruction to stop sending requests for current service in the first cell (e.g., a DRCLock bit message). The second BTS then receives from the access terminal a request for current service in the second cell, and begins serving the access terminal.

摘要翻译： 一种控制接入终端在接入网络的小区之间切换的方法和系统，该接入终端包括服务于第一小区的第一BTS和服务于第二小区的第二BTS。 当第一BTS从接入终端接收到第一小区中当前业务的一个或多个连续请求并为接入终端服务时，第二BTS从接入终端接收对第二小区中未来业务的请求。 作为响应，第二BTS准备为第二小区中的接入终端服务。 在第二BTS完成准备之后，第一BTS向接入终端发送停止发送在第一小区中当前业务的请求的指令（例如，DRCLock位消息）。 然后，第二BTS从接入终端接收对第二小区中的当前业务的请求，并开始为接入终端服务。

公开(公告)号：US08565082B1

公开(公告)日：2013-10-22

申请号：US13072480

申请日：2011-03-25

申请人： Sachin R. Vargantwar ,  Manoj Shetty ,  Deveshkumar N. Rai ,  Maulik K. Shah

发明人： Sachin R. Vargantwar ,  Manoj Shetty ,  Deveshkumar N. Rai ,  Maulik K. Shah

IPC分类号： H04J11/00

CPC分类号： H04L27/2607 ,  H04L1/0003 ,  H04L1/0006 ,  H04L1/0009

摘要： During a first time interval, an access point transmits orthogonal frequency division multiplexing (OFDM) signals using a first cyclic prefix length. The access point selects a second cyclic prefix length based, at least in part, on the load of the access point. The access point transmits OFDM signals using the second cyclic prefix length during a second time interval. The load of the access point may be determined based on the amount of downlink data being buffered in the access point for transmission to one or more user devices.

摘要翻译： 在第一时间间隔期间，接入点使用第一循环前缀长度发送正交频分复用（OFDM）信号。 接入点至少部分地基于接入点的负载来选择第二循环前缀长度。 接入点在第二时间间隔期间使用第二循环前缀长度发送OFDM信号。 可以基于在接入点中缓冲的下行链路数据的量来确定接入点的负载以传输到一个或多个用户设备。

公开(公告)号：US08300620B1

公开(公告)日：2012-10-30

申请号：US12345195

申请日：2008-12-29

申请人： Debasish Sarkar ,  Siddharth S. Oroskar ,  Sachin R. Vargantwar ,  Manoj Shetty ,  Deveshkumar N. Rai

发明人： Debasish Sarkar ,  Siddharth S. Oroskar ,  Sachin R. Vargantwar ,  Manoj Shetty ,  Deveshkumar N. Rai

IPC分类号： H04J3/24

CPC分类号： H04L1/188 ,  H04L1/1809

摘要： Systems, methods, and computer-readable media for adjusting a timer mechanism based on radio frequency (RF) conditions of a network connecting source and destination devices are provided. Initially, data packets transmitted by the source device are assigned an ordering. This ordering is compared to an actual order in which the data packets are received at the destination device to ascertain whether any data packets were missing due to RF conditions. A negative response indicating missing, or lost, data packets may be returned, thereby invoking the source device to retransmit the data packets identified as missing. The device(s) may compute a probability of packet-loss (utilizing a recorded history of the transmitted packets in conjunction with the data packets actually received) and utilize the packet-loss probability to dynamically tune a time-interval of the timer mechanism. Upon expiration of the time-interval, the timer mechanism instructs the source device to retransmit the initial data packets.

摘要翻译： 提供了用于基于连接源和目的地设备的网络的射频（RF）条件来调整定时器机制的系统，方法和计算机可读介质。 首先，由源设备发送的数据分组被分配排序。 将该排序与在目的地设备处接收数据分组的实际顺序进行比较，以确定由于RF条件是否丢失任何数据分组。 可以返回指示丢失或丢失的数据分组的否定响应，从而调用源设备重新发送被识别为丢失的数据分组。 设备可以计算分组丢失的概率（利用所传送的分组的记录的历史结合实际接收的数据分组），并利用分组丢失概率来动态地调整定时器机制的时间间隔。 在时间间隔到期时，定时器机构指示源设备重传初始数据分组。

公开(公告)号：US08160034B1

公开(公告)日：2012-04-17

申请号：US12207158

申请日：2008-09-09

申请人： Debasish Sarkar ,  Sachin R. Vargantwar ,  Siddharth S. Oroskar ,  Manoj Shetty ,  Deveshkumar N. Rai

发明人： Debasish Sarkar ,  Sachin R. Vargantwar ,  Siddharth S. Oroskar ,  Manoj Shetty ,  Deveshkumar N. Rai

IPC分类号： H04J3/00

CPC分类号： H04L5/0053 ,  H04L5/0064 ,  H04L5/0087

摘要： Methods and systems provide dynamic determination of a control-channel bit rate. An access node provides service on a carrier comprising active and idle timeslots, active timeslots comprising a data channel for carrying a control channel at a bit rate that can be set to a lower value or a higher value, and traffic channels. The access node determines whether the number of active timeslots over a time period is less than a first threshold. If so, the access node sets the bit rate to the lower value. If not, the access node sets the bit rate to the higher value if at least one of the following is true: (a) control-channel occupancy exceeds a second threshold, (b) the amount of data in a traffic buffer exceeds a third threshold, and (c) control-channel occupancy exceeds a fourth threshold and the amount of data in the traffic buffer exceeds a fifth threshold.

摘要翻译： 方法和系统提供控制信道比特率的动态确定。 接入节点在包括活动和空闲时隙的载波上提供服务，包括用于以可以被设置为较低值或更高值的比特率传送控制信道的数据信道的活动时隙和业务信道。 接入节点确定一段时间内的活动时隙数是否小于第一阈值。 如果是，则接入节点将比特率设置为较低的值。 如果不是，则如果以下中的至少一个为真，则接入节点将比特率设置为较高值：（a）控制信道占用超过第二阈值，（b）业务缓冲区中的数据量超过第三 阈值，（c）控制信道占用超过第四阈值，并且业务缓冲区中的数据量超过第五阈值。

公开(公告)号：US08204517B1

公开(公告)日：2012-06-19

申请号：US12369553

申请日：2009-02-11

申请人： Deveshkumar N. Rai ,  Manoj Shetty ,  Sachin R. Vargantwar ,  Siddharth S. Oroskar ,  Debasish Sarkar

发明人： Deveshkumar N. Rai ,  Manoj Shetty ,  Sachin R. Vargantwar ,  Siddharth S. Oroskar ,  Debasish Sarkar

IPC分类号： H04W68/00

CPC分类号： H04W68/02

摘要： An access network may identify paging areas based on a reference location (e.g., a mobile station's last known location), where each paging area includes at least one coverage area. The access network may then determine paging-channel occupancies for coverage areas in at least identified paging area. In turn, the access network may adjust a given identified paging area based on the determined paging-channel occupancies, resulting in an adjusted paging area. For example, the access network may add coverage areas to the given identified paging area and/or remove coverage areas from the given identified paging area based on the paging-channel occupancies for those coverage areas. Thereafter, the access network may page a mobile station associated with the reference location in the adjusted paging area.

摘要翻译： 接入网络可以基于参考位置（例如，移动台的最后已知位置）识别寻呼区域，其中每个寻呼区域包括至少一个覆盖区域。 然后，接入网络可以确定至少标识的寻呼区域中的覆盖区域的寻呼信道占用。 接下来，接入网络可以基于所确定的寻呼信道占用来调整给定的识别寻呼区域，导致调整后的寻呼区域。 例如，接入网络可以基于对于那些覆盖区域的寻呼信道占用，将给定的识别的寻呼区域的覆盖区域添加和/或从给定的所识别的寻呼区域去除覆盖区域。 此后，接入网络可以在调整的寻呼区域中寻呼与参考位置相关联的移动站。