公开(公告)号：US20120044919A1

公开(公告)日：2012-02-23

申请号：US13211933

申请日：2011-08-17

申请人： Kamesh MEDAPALLI ,  Erik Stauffer ,  Bertrand Hochwald ,  William Fujimoto ,  Yossi (Joseph) Saada ,  Richard Compton

发明人： Kamesh MEDAPALLI ,  Erik Stauffer ,  Bertrand Hochwald ,  William Fujimoto ,  Yossi (Joseph) Saada ,  Richard Compton

IPC分类号： H04W84/02

CPC分类号： H04W88/06 ,  H04B1/406 ,  H04B1/44 ,  H04B1/525

摘要： Embodiments provide WiFi and WiMAX tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and WiMAX transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from WiMAX into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between WiMAX and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and WiMAX transceivers (e.g., fixed CPE, portable router, smart phone with tethering).

摘要翻译： 实施例提供WiFi和WiMAX定制的收发射频（RF）滤波技术和配置，以实现在接近操作的WiFi和WiMAX收发器之间的共存。 具体地，实施例提供了将WiMAX的发射抑制到WiFi的滤波技术，反之亦然。 滤波技术消除了对WiMAX和WiFi天线之间的额外隔离的需求（约50dB），这超出了实际可实现的范围。 可以根据WiFi和WiMAX收发器（例如，固定CPE，便携式路由器，带有束缚的智能电话）的不同使用情况来定制实施例。

公开(公告)号：US08681748B2

公开(公告)日：2014-03-25

申请号：US13211933

申请日：2011-08-17

申请人： Kamesh Medapalli ,  Erik Stauffer ,  Bertrand Hochwald ,  William Fujimoto ,  Yossi (Joseph) Saada ,  Richard Compton

发明人： Kamesh Medapalli ,  Erik Stauffer ,  Bertrand Hochwald ,  William Fujimoto ,  Yossi (Joseph) Saada ,  Richard Compton

IPC分类号： H04W4/00

CPC分类号： H04W88/06 ,  H04B1/406 ,  H04B1/44 ,  H04B1/525

摘要： Embodiments provide WiFi and WiMAX tailored transceiver radio frequency (RF) filtering techniques and configurations to enable coexistence between WiFi and WiMAX transceivers operating in close proximity. In particular, embodiments provide filtering techniques to reject emissions from WiMAX into WiFi, and vice versa. The filtering techniques eliminate the need for additional isolation between WiMAX and WiFi antennas (approximately 50 dB), which is beyond what is achievable in practice. Embodiments can be tailored according to different use cases of the WiFi and WiMAX transceivers (e.g., fixed CPE, portable router, smart phone with tethering).

摘要翻译： 实施例提供WiFi和WiMAX定制的收发射频（RF）滤波技术和配置，以实现在接近操作的WiFi和WiMAX收发器之间的共存。 具体地，实施例提供了将WiMAX的发射抑制到WiFi的滤波技术，反之亦然。 滤波技术消除了对WiMAX和WiFi天线之间的额外隔离的需求（约50dB），这超出了实际可实现的范围。 可以根据WiFi和WiMAX收发器（例如，固定CPE，便携式路由器，带有束缚的智能电话）的不同使用情况来定制实施例。

公开(公告)号：US08811918B2

公开(公告)日：2014-08-19

申请号：US13305032

申请日：2011-11-28

申请人： Kamlesh Rath ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Manish Airy ,  Bertrand Hochwald ,  Robert Lorenz ,  Richard Compton ,  Rakesh Agrawal

发明人： Kamlesh Rath ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Manish Airy ,  Bertrand Hochwald ,  Robert Lorenz ,  Richard Compton ,  Rakesh Agrawal

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H04W52/367 ,  H04B7/0602 ,  H04B7/0613 ,  H04B7/0689 ,  H04W52/0251 ,  H04W52/143 ,  H04W52/283 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/444

摘要： Various embodiments of the present invention recognize at least two zones of operation for a communication device. In a first zone, which is sufficiently spaced away from a human head or body that SAR limits will be met, transmit power delivered to an antenna of a communication device may be maximized within any other constraints under which the communication device operates. In a second zone, which is not sufficiently spaced away from a human head or body, transmit power is redistributed such that SAR limitations are met without affecting the transmit power control loop of the communication device. For example, a second antenna physically disposed at a different location within the communication device may be used either instead of, or in addition to, the first transmit antenna in order that the SAR limits are met.

摘要翻译： 本发明的各种实施例识别通信设备的至少两个操作区域。 在与人类头部或身体足够距离的第一区域中将满足SAR限制的情况下，传送到通信设备的天线的传输功率可以在通信设备操作的任何其他限制内被最大化。 在与人的头部或身体不足够间隔的第二区域中，发射功率被重新分配，使得在不影响通信设备的发射功率控制环路的情况下满足SAR限制。 例如，物理地设置在通信设备内的不同位置的第二天线可以被替代或者除了第一发射天线之外使用，以便满足SAR限制。

公开(公告)号：US20120142291A1

公开(公告)日：2012-06-07

申请号：US13305032

申请日：2011-11-28

申请人： Kamlesh Rath ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Manish Airy ,  Bertrand Hochwald ,  Robert Lorenz ,  Richard Compton ,  Rakesh Agrawal

发明人： Kamlesh Rath ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Manish Airy ,  Bertrand Hochwald ,  Robert Lorenz ,  Richard Compton ,  Rakesh Agrawal

IPC分类号： H04W52/04

CPC分类号： H04W52/367 ,  H04B7/0602 ,  H04B7/0613 ,  H04B7/0689 ,  H04W52/0251 ,  H04W52/143 ,  H04W52/283 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/444

摘要： Various embodiments of the present invention recognize at least two zones of operation for a communication device. In a first zone, which is sufficiently spaced away from a human head or body that SAR limits will be met, transmit power delivered to an antenna of a communication device may be maximized within any other constraints under which the communication device operates. In a second zone, which is not sufficiently spaced away from a human head or body, transmit power is redistributed such that SAR limitations are met without affecting the transmit power control loop of the communication device. For example, a second antenna physically disposed at a different location within the communication device may be used either instead of, or in addition to, the first transmit antenna in order that the SAR limits are met.

摘要翻译： 本发明的各种实施例识别通信设备的至少两个操作区域。 在与人类头部或身体足够距离的第一区域中将满足SAR限制的情况下，传送到通信设备的天线的传输功率可以在通信设备操作的任何其他限制内被最大化。 在远离人的头部或身体的距离不足的第二区域中，发射功率被重新分配，使得在不影响通信设备的发射功率控制环路的情况下满足SAR限制。 例如，物理地设置在通信设备内的不同位置的第二天线可以被替代或者除了第一发射天线之外使用，以便满足SAR限制。

公开(公告)号：US08675761B2

公开(公告)日：2014-03-18

申请号：US12815540

申请日：2010-06-15

申请人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

发明人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

IPC分类号： H04L1/02

CPC分类号： H04B7/0671 ,  H04B7/0691

摘要： Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.

摘要翻译： 公开了分配用于循环延迟分集（CDD）传输的天线的方法和装置。 一种方法包括估计具有多个天线的收发机的传输信道。 基于估计的传输信道来选择多个收发天线的子集。 基于单个收发器天线的传输路径的信道质量来识别该子集的单个收发天线。 从多个天线的子集中发送循环延迟分集（CDD）信号，其中从所述多个收发器天线的子集的所识别的单个收发器天线发送最小延迟的CDD信号。

公开(公告)号：US20110223870A1

公开(公告)日：2011-09-15

申请号：US12815540

申请日：2010-06-15

申请人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

发明人： Djordje Tujkovic ,  Vummintala Shashidhar ,  Erik Stauffer ,  Rishi Ranjan ,  Soumen Chakraborty ,  Bertrand Hochwald ,  Sriram Rajagopal ,  Sam Alex

IPC分类号： H04B7/02 ,  H04B1/38

CPC分类号： H04B7/0671 ,  H04B7/0691

摘要： Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.

摘要翻译： 公开了分配用于循环延迟分集（CDD）传输的天线的方法和装置。 一种方法包括估计具有多个天线的收发机的传输信道。 基于估计的传输信道来选择多个收发天线的子集。 基于单个收发器天线的传输路径的信道质量来识别该子集的单个收发天线。 从多个天线的子集中发送循环延迟分集（CDD）信号，其中从所述多个收发器天线的子集的所识别的单个收发器天线发送最小延迟的CDD信号。

公开(公告)号：US08284693B2

公开(公告)日：2012-10-09

申请号：US12696636

申请日：2010-01-29

申请人： Erik Stauffer ,  Bertrand Hochwald

发明人： Erik Stauffer ,  Bertrand Hochwald

IPC分类号： H04L12/26

CPC分类号： H04L1/0625

摘要： Embodiments for space-time coding are disclosed. One method includes establishing a priority for each of a plurality of data streams. A number of data bits for each of the plurality of data streams are allocated. A desired signal quality for each of the plurality of data streams is determined based on the corresponding priority. Each of the plurality of data streams are modulated according to the allocated number of data bits of each of the plurality of data streams. A space-time code is selected for each of the plurality of data streams based at least partially on the desired signal quality for each of the plurality of data streams, wherein at least one of the space-time codes is at least one of a vector or a matrix. Each of the modulated data streams are space-time coded with the selected space-time code. The space-time coded modulated data streams are summed, and transmitted.

摘要翻译： 公开了时空编码的实施例。 一种方法包括为多个数据流中的每一个建立优先级。 分配用于多个数据流中的每一个的多个数据位。 基于相应的优先级确定多个数据流中的每一个的期望信号质量。 多个数据流中的每一个根据分配的多个数据流中的每一个的数据比特数进行调制。 至少部分地基于多个数据流中的每一个的期望信号质量为多个数据流中的每一个选择空时码，其中至少一个时空码是至少一个矢量 或矩阵。 每个调制数据流都是用所选择的时空码进行空时编码的。 将时空编码调制数据流相加并传输。

公开(公告)号：US20100195526A1

公开(公告)日：2010-08-05

申请号：US12696636

申请日：2010-01-29

申请人： Erik Stauffer ,  Bertrand Hochwald

发明人： Erik Stauffer ,  Bertrand Hochwald

IPC分类号： H04L12/26

CPC分类号： H04L1/0625

摘要： Embodiments for space-time coding are disclosed. One method includes establishing a priority for each of a plurality of data streams. A number of data bits for each of the plurality of data streams are allocated. A desired signal quality for each of the plurality of data streams is determined based on the corresponding priority. Each of the plurality of data streams are modulated according to the allocated number of data bits of each of the plurality of data streams. A space-time code is selected for each of the plurality of data streams based at least partially on the desired signal quality for each of the plurality of data streams, wherein at least one of the space-time codes is at least one of a vector or a matrix. Each of the modulated data streams are space-time coded with the selected space-time code. The space-time coded modulated data streams are summed, and transmitted.

摘要翻译： 公开了时空编码的实施例。 一种方法包括为多个数据流中的每一个建立优先级。 分配用于多个数据流中的每一个的多个数据位。 基于相应的优先级确定多个数据流中的每一个的期望信号质量。 多个数据流中的每一个根据分配的多个数据流中的每一个的数据比特数进行调制。 至少部分地基于多个数据流中的每一个的期望信号质量为多个数据流中的每一个选择空时码，其中至少一个时空码是至少一个矢量 或矩阵。 每个调制数据流都是用所选择的时空码进行时空编码的。 将时空编码调制数据流相加并传输。

公开(公告)号：US09008734B2

公开(公告)日：2015-04-14

申请号：US13309290

申请日：2011-12-01

申请人： Shashidhar Vummintala ,  Gowrisankar Somichetty ,  Sriram Rajagopal ,  Sindhu Verma ,  Manish Airy ,  Hariprasad Gangadharan ,  Ramasamy Palanisamy Pugazhanthi ,  Felix Varghese ,  Erik Stauffer

发明人： Shashidhar Vummintala ,  Gowrisankar Somichetty ,  Sriram Rajagopal ,  Sindhu Verma ,  Manish Airy ,  Hariprasad Gangadharan ,  Ramasamy Palanisamy Pugazhanthi ,  Felix Varghese ,  Erik Stauffer

IPC分类号： H04B1/00 ,  H04W4/00 ,  H04W52/02

CPC分类号： H04W52/0216 ,  H03D7/16 ,  H04L41/0803 ,  H04W28/0263 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

摘要： A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.

摘要翻译： 公开了能够降低功耗的无线通信设备。 WiMAX，802.16m或LTE环境中的上行链路和下行链路子帧通常包括几个空闲符号，在此期间，功耗很大的硬件和软件组件不需要在全功率下运行。 通过分析接收信号的物理层信标和控制信息，可以确定数据突发的特定位置以及接收机模块有效解码这些数据脉冲串的所需操作周期。 否则，在空闲时间的剩余时间期间，接收器模块可以被控制为在低功率状态下操作，从而节省功耗并延长电池寿命。

公开(公告)号：US08989695B2

公开(公告)日：2015-03-24

申请号：US13250665

申请日：2011-09-30

申请人： Djordje Tujkovic ,  Erik Stauffer

发明人： Djordje Tujkovic ,  Erik Stauffer

IPC分类号： H04M11/04 ,  H04W4/22 ,  H04L1/08 ,  H04L1/00 ,  H04W76/00

CPC分类号： H04W4/22 ,  H04L1/0015 ,  H04L1/08 ,  H04W4/90 ,  H04W76/50

摘要： A wireless communication device is disclosed that is capable of transmitting emergency data to a base station even when the wireless communication device is out of range, or has insufficient battery life, to communicate with the base station using normal transmission means. When the wireless communication device is out of range or has low battery, the wireless communication device can transmit the emergency data to the base station by repeatedly transmitting the emergency data at a coding rate below a standard/minimum coding rate of the modulation scheme designated for use by the base station. The second wireless communication device can detect and decode the emergency data by storing the multiple transmitted iterations of the received signal and performing combining processing on those stored iterations.

摘要翻译： 公开了一种无线通信装置，其即使在无线通信装置超出范围或电池寿命不足的情况下也能够使用通常的发送装置与基站通信，向基站发送紧急数据。 当无线通信设备超出范围或电池电量不足时，无线通信设备可以通过以低于指定的调制方案的标准/最小编码率的编码速率重复发送紧急数据来将紧急数据发送到基站 由基站使用。 第二无线通信设备可以通过存储接收到的信号的多次发送的迭代来对紧急数据进行检测和解码，并对存储的迭代执行组合处理。