公开(公告)号：US07486954B2

公开(公告)日：2009-02-03

申请号：US11089339

申请日：2005-03-25

申请人： Jung Ah Lee ,  Shirish Nagaraj ,  Anil M. Rao

发明人： Jung Ah Lee ,  Shirish Nagaraj ,  Anil M. Rao

IPC分类号： H04Q7/20

CPC分类号： H04W36/22 ,  H04W28/22 ,  H04W52/365

摘要： In the method, rate control for at least one soft handoff user is selectively performed based on a soft handoff loading metric indicative of loading from soft handoff users on the channel.

摘要翻译： 在该方法中，基于指示来自软切换用户在信道上的加载的软切换加载度量来选择性地执行至少一个软越区切换用户的速率控制。

公开(公告)号：US07352825B2

公开(公告)日：2008-04-01

申请号：US10725095

申请日：2003-12-01

申请人： Deepak Das ,  Jung Ah Lee ,  Shirish Nagaraj ,  Anil M. Rao

发明人： Deepak Das ,  Jung Ah Lee ,  Shirish Nagaraj ,  Anil M. Rao

IPC分类号： H03K9/00 ,  H03D1/04

CPC分类号： H04B7/086

摘要： The disclosed embodiments relate to a communication system and method. The system may comprise a pre-whitening device that applies pre-whitening data to a received signal from an antenna array to produce a pre-whitened signal, at least one detector that is adapted to recognize a pattern corresponding to a request for access in the pre-whitened signal and compute correlation data corresponding to the pattern, and a threshold detector that determines whether the correlation data exceeds a threshold and indicates that an acknowledgement signal should be transmitted if the threshold is exceeded. The method may comprise the acts of creating a pre-whitened signal by applying pre-whitening data to a received signal, detecting a pattern that corresponds to a request for access in the pre-whitened signal, computing correlation data corresponding to the pattern, determining whether the correlation data exceeds a threshold, and indicating that an acknowledgement signal should be transmitted if the threshold is exceeded.

摘要翻译： 所公开的实施例涉及通信系统和方法。 所述系统可以包括预白化装置，其将来自天线阵列的接收信号的预白化数据应用于产生预白化信号;至少一个检测器，适于识别与所述接收信号的请求相对应的模式 预白化信号和计算与图案对应的相关数据;以及阈值检测器，其确定相关数据是否超过阈值，并指示如果超过阈值则应发送确认信号。 该方法可以包括通过对接收到的信号应用预白化数据来产生预白化信号的动作，检测对应于预白化信号中的访问请求的模式，计算对应于模式的相关数据，确定 相关数据是否超过阈值，并指示如果超过阈值，则应发送确认信号。

公开(公告)号：US20080051126A1

公开(公告)日：2008-02-28

申请号：US11507877

申请日：2006-08-22

申请人： Shirish Nagaraj ,  Anil M. Rao

发明人： Shirish Nagaraj ,  Anil M. Rao

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/146 ,  H04W52/325

摘要： Disclosed is a method of setting reverse link traffic and pilot transmit powers in a wireless communications system based on traffic channel activity in order to lower average total transmit power on the reverse link and optimize reverse link capacity. As traffic channel activity decreases, the traffic transmit power relative to the pilot transmit power, i.e., traffic-to-pilot ratio (TPR), should increase. Increasing TPR will produce lower pilot transmit powers and higher traffic transmit powers. Although higher traffic transmit powers are undesirable, the effect on average total transmit power is lessen because the traffic channel is not active all the time. By contrast, the pilot channel is always active and, thus, it is desirable to sacrifice some performance of channel estimation in order to lower average total transmit power.

摘要翻译： 公开了一种基于业务信道活动在无线通信系统中设置反向链路业务和导频发射功率的方法，以便降低反向链路上的平均总发射功率并优化反向链路容量。 随着业务信道活动减少，相对于导频发射功率的业务传输功率，即业务导频比（TPR），应增加。 增加TPR将产生较低的导频发射功率和较高的通信量传输功率。 虽然较高的流量发送功率是不期望的，但由于业务信道始终没有激活，所以对平均总发射功率的影响是减少的。 相比之下，导频信道总是有效的，因此，期望牺牲信道估计的一些性能以便降低平均总发射功率。

公开(公告)号：US07995585B2

公开(公告)日：2011-08-09

申请号：US11035082

申请日：2005-01-14

申请人： Jung Ah Lee ,  Anil M. Rao

发明人： Jung Ah Lee ,  Anil M. Rao

IPC分类号： H04L12/56

CPC分类号： H04L5/1446 ,  H04W28/22 ,  H04W28/24 ,  H04W72/1247

摘要： In an embodiment of the method, an estimated use of an uplink resource by prioritized users, if transmission rates for the prioritized users are granted, is determined. The transmission rates are then granted if the estimated use of the uplink resource is less than or equal to an available amount of the uplink resource. Otherwise, the granting of transmission rates of the prioritized users is controlled in order of lower priority prioritized users to higher priority prioritized users until the estimated use of the uplink resource by the prioritized users falls within the available amount of the uplink resource for the channel.

摘要翻译： 在该方法的一个实施例中，确定优先用户的上行链路资源的估计使用，如果授予优先用户的传输速率，则确定其使用。 如果上行链路资源的估计使用小于或等于上行链路资源的可用量，则传输速率被授权。 否则，优先级较高的用户的传输速率的授予按较低优先级优先用户的顺序被控制到优先级较高的优先级用户，直到优先用户的上行链路资源的估计使用量落入该信道的上行链路资源的可用量之内。

公开(公告)号：US07321645B2

公开(公告)日：2008-01-22

申请号：US10651200

申请日：2003-08-29

申请人： Jung Ah Lee ,  Anil M. Rao

发明人： Jung Ah Lee ,  Anil M. Rao

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04B7/086 ,  H04L1/0618 ,  H04W52/50

摘要： In a method and arrangement for detecting a random access channel preamble in a received uplink signal, the uplink signal is received at one or more receive antennas and contains data related to a random access channel preamble. The received uplink signal is subjected to spatial processing and temporal processing in order to detect the random access channel preamble. A best cell portion for communicating with a user may also be determined based on the detected preamble. The best cell portion represents a portion of a cell where a received uplink signal from a user has a highest signal to interference ratio. The detected random access channel preamble is indicative of the best cell portion for communicating with the user.

摘要翻译： 在用于检测接收到的上行链路信号中的随机接入信道前同步码的方法和装置中，在一个或多个接收天线处接收上行链路信号，并且包含与随机接入信道前导码有关的数据。 接收到的上行链路信号经受空间处理和时间处理，以便检测随机接入信道前同步码。 还可以基于检测到的前导码来确定用于与用户通信的最佳小区部分。 最好的小区部分表示从用户接收的上行链路信号具有最高的信号与干扰比的小区的一部分。 检测到的随机接入信道前导码指示用于与用户通信的最佳小区部分。

公开(公告)号：US08914028B2

公开(公告)日：2014-12-16

申请号：US13210148

申请日：2011-08-15

申请人： Ruth Schaefer Gayde ,  Subramanian Vasudevan ,  Anil M. Rao

发明人： Ruth Schaefer Gayde ,  Subramanian Vasudevan ,  Anil M. Rao

IPC分类号： H04W36/00 ,  H04W48/06 ,  H04W48/20

CPC分类号： H04W48/06 ,  H04W36/22 ,  H04W48/20

摘要： In a wireless telecommunications network, there is included: a macro cell (10) having a first coverage area; and at least one metro cell (20a, 20b, 20c) having a second coverage area, the metro cell being located within the first coverage area of the macro cell. Suitably, the macro cell is configured to: determine whether or not the macro cell is congested; determine whether or not the metro cell is uncongested; and, if it is determined the macro cell is congested and that the metro cell is uncongested, then the macro cell determines that an attempted application of Cell Association Bias (CAB) for the metro cell is warranted. Suitably, if CAB is in fact applied, the macro cell also implements enhanced Inter Cell Interference Coordination (eICIC) using Almost Blank Subframes (ABS) and informs its other neighboring metro cells of this configuration.

摘要翻译： 在无线电信网络中，包括：具有第一覆盖区域的宏小区（10）; 以及具有第二覆盖区域的至少一个城域小区（20a，20b，20c），所述城域小区位于所述宏小区的所述第一覆盖区域内。 适当地，宏小区被配置为：确定宏小区是否拥塞; 确定地铁单元是否不起作用; 并且如果确定宏小区拥塞并且城域小区不被占用，则宏小区确定对于城域小区的小区关联偏好（CAB）的尝试应用是有保证的。 适当地，如果事实上应用了CAB，宏小区也使用几乎空白的子帧（ABS）来实现增强的小区间干扰协调（eICIC），并且通知其其它相邻城域小区的这种配置。

公开(公告)号：US08477737B2

公开(公告)日：2013-07-02

申请号：US12078033

申请日：2008-03-26

申请人： Anil M. Rao

发明人： Anil M. Rao

IPC分类号： H04W4/00 ,  H04W36/00

CPC分类号： H04W36/04 ,  H04W36/22 ,  H04W36/30

摘要： A method of uplink carrier handoff in a multiple carrier communication system may include receiving a measurement report from a mobile providing information regarding path loss as measured at the mobile for one of the multiple carriers on the downlink. A serving carrier may be the carrier over which the mobile communicates on the uplink. An instruction may be selectively sent to the mobile to handoff to a non-serving one of the multiple carriers depending on whether a threshold requirement has been met. The meeting of the threshold requirement may be based on the received measurement report and the serving carrier of the mobile. Each of the multiple carriers may have an associated threshold requirement.

公开(公告)号：US20130045740A1

公开(公告)日：2013-02-21

申请号：US13210148

申请日：2011-08-15

申请人： Ruth Schaefer Gayde ,  Subramanian Vasudevan ,  Anil M. Rao

发明人： Ruth Schaefer Gayde ,  Subramanian Vasudevan ,  Anil M. Rao

IPC分类号： H04W36/00

CPC分类号： H04W48/06 ,  H04W36/22 ,  H04W48/20

摘要： In a wireless telecommunications network, there is included: a macro cell (10) having a first coverage area; and at least one metro cell (20a, 20b, 20c) having a second coverage area, the metro cell being located within the first coverage area of the macro cell. Suitably, the macro cell is configured to: determine whether or not the macro cell is congested; determine whether or not the metro cell is uncongested; and, if it is determined the macro cell is congested and that the metro cell is uncongested, then the macro cell determines that an attempted application of Cell Association Bias (CAB) for the metro cell is warranted. Suitably, if CAB is in fact applied, the macro cell also implements enhanced Inter Cell Interference Coordination (eICIC) using Almost Blank Subframes (ABS) and informs its other neighboring metro cells of this configuration.

公开(公告)号：US20120201205A1

公开(公告)日：2012-08-09

申请号：US12931652

申请日：2011-02-07

申请人： Nandu Gopalakrishnan ,  Anil M. Rao ,  James Paul Seymour

发明人： Nandu Gopalakrishnan ,  Anil M. Rao ,  James Paul Seymour

IPC分类号： H04W72/12

CPC分类号： H04W28/06 ,  H04L1/1816 ,  H04L1/1887 ,  H04L65/1016 ,  H04L65/607 ,  H04L69/04 ,  H04W72/00

摘要： A method is provided a wireless system for reliably transmitting context information in robust header compression at low signal energies. More particularly, the methodology of the invention provides an elongated virtual Transmission Time Interval (Super TTI) for the first few (in particular, the first) non-compressed packet (that includes upper layer headers) of a packet stream transmitted using ROHC compression. Improved reception reliability for the uncompressed packet, in particular to decode the headers, results by application to the Super TTI of a combination of TTI Bundling techniques, RLC segmentation and association with multiple HARQ processes and use of enough HARQ rounds.

摘要翻译： 提供了一种用于在低信号能量下可靠地传送鲁棒报头压缩中的上下文信息的无线系统的方法。 更具体地，本发明的方法为使用ROHC压缩传输的分组流的前几个（特别是第一个）非压缩分组（包括上层报头）提供了一个细长的虚拟传输时间间隔（Super TTI）。 改进了未压缩分组的接收可靠性，特别是解码报头，通过应用于超级TTI的TTI捆绑技术，RLC分段和与多个HARQ进程的关联以及使用足够的HARQ轮次的结果的结果。

公开(公告)号：US20100260132A1

公开(公告)日：2010-10-14

申请号：US12814613

申请日：2010-06-14

申请人： Anil M. Rao

发明人： Anil M. Rao

IPC分类号： H04W72/04

CPC分类号： H04W74/002 ,  H04W74/0866

摘要： Disclosed is a method of allocating resources in a packet data system to a User Equipment (UE) with an active data session, such as a Voice over Internet Protocol (VoIP) call, using dedicated resources to transmit scheduling requests, thereby reducing latency which may occur as a result of collisions associated with transmitting scheduling requests over a random access channel. The method comprises the step of transmitting over dedicated resources a scheduling request, and receiving a scheduling grant in response thereto. The scheduling request indicates that a transmitter in a data session has a data packet to transmit. The scheduling grant indicates resources allocated for transmitting the data packet.

摘要翻译： 公开了一种使用专用资源来发送调度请求的分配数据系统中的资源到具有诸如因特网协议语音（VoIP）呼叫的活动数据会话的用户设备（UE）的方法，从而减少可能 作为与通过随机接入信道发送调度请求相关联的冲突的结果发生。 该方法包括通过专用资源发送调度请求的步骤，并响应于此接收调度许可。 调度请求指示数据会话中的发送器具有要发送的数据分组。 调度许可表示分配用于发送数据分组的资源。