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1. 发明授权

US08811918B2 Distribution of transmit signal to multiple transmit antennas for reduction of measured specific absorption rate 有权
标题翻译：将发射信号分配到多个发射天线，以减少测得的比吸收率
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。

2. 发明申请

US20120142291A1 Distribution of Transmit Signal to Multiple Transmit Antennas for Reduction of Measured Specific Absorption Rate 有权
标题翻译：发射信号分配到多个发射天线，用于降低测量的比吸收率
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。

3. 发明授权

US09173178B2 Method and system for power headroom reporting in the presence of multiple transmit antennas 有权
标题翻译：在存在多个发射天线的情况下进行功率余量报告的方法和系统
公开(公告)号：US09173178B2
公开(公告)日：2015-10-27
申请号：US13077839
申请日：2011-03-31
申请人： Soumen Chakraborty , Rishi Ranjan , Erik Stauffer , Kamlesh Rath , Manish Airy
发明人： Soumen Chakraborty , Rishi Ranjan , Erik Stauffer , Kamlesh Rath , Manish Airy
IPC分类号： H04W52/36 , H04W52/14 , H04W52/42
CPC分类号： H04W52/365 , H04W52/146 , H04W52/42
摘要： A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.
摘要翻译：提供了一种方法和系统，其中移动设备可以经由两个或更多个发射天线用于长期演进（LTE）通信或一些其它无线技术。该装置可以包括用于每个发射天线的功率放大器，其具有由两个放大器提供的基本相似的最大功率。可以在设备中基于发射天线和基站之间的路径损耗值和每个发射天线的最大发射功率来确定功率余量值。经由其中一个发射天线的传输可以通过另一个发射天线发射同时进行。设备可以产生用于与基站通信的所确定的功率余量值的指示。功率余量值可以周期性地或响应于在基站处接收的功率的变化来报告。

4. 发明申请

US20120213149A1 Method and System for Power Headroom Reporting in the Presence of Multiple Transmit Antennas 有权
标题翻译：多发射天线存在的功率余量报告方法与系统
公开(公告)号：US20120213149A1
公开(公告)日：2012-08-23
申请号：US13077839
申请日：2011-03-31
申请人： Soumen Chakraborty , Rishi Ranjan , Erik Stauffer , Kamlesh Rath , Manish Airy
发明人： Soumen Chakraborty , Rishi Ranjan , Erik Stauffer , Kamlesh Rath , Manish Airy
IPC分类号： H04W52/18
CPC分类号： H04W52/365 , H04W52/146 , H04W52/42
摘要： A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.
摘要翻译：提供了一种方法和系统，其中移动设备可以经由两个或更多个发射天线用于长期演进（LTE）通信或一些其它无线技术。该装置可以包括用于每个发射天线的功率放大器，其具有由两个放大器提供的基本相似的最大功率。可以在设备中基于发射天线和基站之间的路径损耗值和每个发射天线的最大发射功率来确定功率余量值。经由其中一个发射天线的传输可以通过另一个发射天线发射同时进行。设备可以产生用于与基站通信的所确定的功率余量值的指示。功率余量值可以周期性地或响应于在基站处接收的功率的变化来报告。

5. 发明授权

US08675761B2 Allocating antennas for cyclic delay diversity transmission 有权
标题翻译：分配天线进行循环延迟分集传输
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。

6. 发明申请

US20130130694A1 WIRELESS COMMUNICATION DEVICE CAPABLE OF EFFICIENT HANDOFFS 有权
标题翻译：无线通信设备，具有高效的手持设备
公开(公告)号：US20130130694A1
公开(公告)日：2013-05-23
申请号：US13340384
申请日：2011-12-29
申请人： Arzad Alam KHERANI , Soumen Chakraborty , Erik Stauffer , Manish Airy , Rishi Ranjan , Phani Kiran Boddapati , C. Ashok Kumar Reddy
发明人： Arzad Alam KHERANI , Soumen Chakraborty , Erik Stauffer , Manish Airy , Rishi Ranjan , Phani Kiran Boddapati , C. Ashok Kumar Reddy
IPC分类号： H04W36/30
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 performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.
摘要翻译：公开了能够执行有效切换以便与服务或目标基站的连接时间最大化的无线通信设备。无线通信设备仅执行频率内基站的测量，以避免重新调谐其无线电模块。基于该信息以及与附近基站相关的存储信息，服务基站能够估计无线通信设备的位置，并将估计位置与已知基站的位置进行比较，以便进行切换决策。此外，通过在测量或切换准备期间存储信息，该设备能够跳过切换步骤，在切换失败之后立即返回到服务基站，和/或执行流线型PLMN搜索。

7. 发明授权

US08938239B2 Wireless communication device capable of efficient handoffs 有权
标题翻译：能够有效切换的无线通信设备
公开(公告)号：US08938239B2
公开(公告)日：2015-01-20
申请号：US13340384
申请日：2011-12-29
申请人： Arzad Alam Kherani , Soumen Chakraborty , Erik Stauffer , Manish Airy , Rishi Ranjan , Phani Kiran Boddapati , C. Ashok Kumar Reddy
发明人： Arzad Alam Kherani , Soumen Chakraborty , Erik Stauffer , Manish Airy , Rishi Ranjan , Phani Kiran Boddapati , C. Ashok Kumar Reddy
IPC分类号： H04W36/00 , H04W24/00 , H04W28/02 , H04L12/24
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 performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.
摘要翻译：公开了能够执行有效切换以便与服务或目标基站的连接时间最大化的无线通信设备。无线通信设备仅执行频率内基站的测量，以避免重新调谐其无线电模块。基于该信息以及与附近基站相关的存储信息，服务基站能够估计无线通信设备的位置，并将估计位置与已知基站的位置进行比较，以便进行切换决策。此外，通过在测量或切换准备期间存储信息，该设备能够跳过切换步骤，在切换失败之后立即返回到服务基站，和/或执行流线型PLMN搜索。

8. 发明申请

US20110223870A1 Allocating Antennas for Cyclic Delay Diversity Transmission 有权
标题翻译：分配天线用于循环延迟分集传输
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。

9. 发明授权

US08681748B2 Wireless transceivers with filter arrangement for WiFi and WiMAX coexsistence 失效
标题翻译：无线收发器具有WiFi和WiMAX共存的过滤器布置
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。

10. 发明申请

US20120044919A1 Wireless Transceivers with Filter Arrangement for WiFi and WiMAX Coexsistence 失效
标题翻译：无线收发器具有WiFi和WiMAX共存的过滤器布置
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。

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