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11. 发明授权

US08135078B2 Channel profile estimation for OFDM-based communication system 失效
标题翻译：基于OFDM的通信系统的信道分布估计
公开(公告)号：US08135078B2
公开(公告)日：2012-03-13
申请号：US12113892
申请日：2008-05-01
申请人： Kee-Bong Song , Won-Joon Choi
发明人： Kee-Bong Song , Won-Joon Choi
IPC分类号： H04K1/10
CPC分类号： H04L25/0232 , H04L5/0007 , H04L25/022
摘要： A device and method for performing a channel profile estimation for an OFDM-based wireless communication system uses an averaged frequency coherence metric to select a particular channel profile, which is a current channel profile estimate. The averaged frequency coherence metric is derived using correlations between pilot subcarriers of an OFDM-based signal at predefined subcarrier locations for multiple frames of the OFDM-based signal. The selected channel profile may be used for channel estimation, as well as for link adaptation, to improve the performance of these processes.
摘要翻译：用于对基于OFDM的无线通信系统执行信道分布估计的装置和方法使用平均的频率相干度量来选择作为当前信道分布估计的特定信道分布。使用基于OFDM的信号的多个帧的预定子载波位置处的基于OFDM的信号的导频子载波之间的相关性来导出平均频率相干度量。所选择的信道简档可以用于信道估计以及链路自适应，以改善这些过程的性能。

12. 发明授权

US09226203B2 Method for implementing autonomous management of radio resources across dual networks 有权
标题翻译：实现双网络无线电资源自主管理的方法
公开(公告)号：US09226203B2
公开(公告)日：2015-12-29
申请号：US13599289
申请日：2012-08-30
申请人： Tarik Tabet , Syed A. Mujtaba , Xiaowen Wang , Paul Flynn , Kee-Bong Song , Vinay Majjigi , Youngjae Kim , Yuchul Kim , Christian Mucke
发明人： Tarik Tabet , Syed A. Mujtaba , Xiaowen Wang , Paul Flynn , Kee-Bong Song , Vinay Majjigi , Youngjae Kim , Yuchul Kim , Christian Mucke
IPC分类号： H04W36/00 , H04W88/06 , H04W76/04
CPC分类号： H04W36/0066 , H04W36/0088 , H04W76/28 , H04W88/06
摘要： Managing radio resources across dual networks includes a wireless mobile device connecting to a first wireless network using a first radio access technology. The wireless device may notify the first network of a capability to be temporarily non-responsive to the first network while maintaining a signaling connection to the first network. The wireless device may communicate with a second network. The wireless device may return to communicating with the first network subsequent to communicating with the second network, and in response to communicating with the second network for less than a predetermined amount of time, the wireless device may send a scheduling request to the first network. In response to receiving a grant acknowledgement from the first network, the wireless device may send a buffer status report that includes a value such as zero to indicate that the wireless device has returned to and can communicate with the first network.
摘要翻译：跨双网络管理无线电资源包括使用第一无线电接入技术连接到第一无线网络的无线移动设备。无线设备可以在维持到第一网络的信令连接的同时向第一网络通知临时不响应于第一网络的能力。无线设备可以与第二网络通信。无线设备可以在与第二网络通信之后返回与第一网络的通信，并且响应于与第二网络的通信少于预定的时间量，无线设备可以向第一网络发送调度请求。响应于从第一网络接收到许可确认，无线设备可以发送包括诸如零的值的缓冲器状态报告，以指示无线设备已经返回并可以与第一网络通信。

13. 发明授权

US08793000B2 Idle mode receive antenna diversity system 有权
标题翻译：空闲模式接收天线分集系统
公开(公告)号：US08793000B2
公开(公告)日：2014-07-29
申请号：US13099081
申请日：2011-05-02
申请人： Syed A. Mujtaba , Youngjae Kim , Bharath Narasimha Rao , Kee-Bong Song , Xiaowen Wang
发明人： Syed A. Mujtaba , Youngjae Kim , Bharath Narasimha Rao , Kee-Bong Song , Xiaowen Wang
IPC分类号： G05B15/00
CPC分类号： H04M1/72519 , H01Q1/243 , H01Q21/28 , H04W68/00
摘要： Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. An electronic device may alternate between a sleep mode and a wake mode. During wake mode, the electronic device may monitor a paging channel in a wireless network for incoming paging signals. The device may use either a single antenna mode or a multiple antenna mode such as a dual antenna mode in monitoring the paging channel. In the single antenna mode, a single active antenna is used to receive paging signals. In the dual antenna mode two antennas are simultaneously used to receive paging signals. The device may choose which antenna mode to use based on signal quality measurements and history information on successfully received paging signals.
摘要翻译：可以提供包含无线通信电路的电子设备。无线通信电路可以包括耦合到多个天线的射频收发器电路。电子设备可以在睡眠模式和唤醒模式之间交替。在唤醒模式期间，电子设备可以监视无线网络中的呼入寻呼信号的寻呼信道。该设备可以使用单天线模式或多天线模式，例如双天线模式来监视寻呼信道。在单天线模式中，单个有源天线用于接收寻呼信号。在双天线模式中，两个天线同时用于接收寻呼信号。设备可以基于信号质量测量和成功接收的寻呼信号的历史信息来选择要使用的天线模式。

14. 发明申请

US20130250785A1 Adaptive Partial Packet Decoding 有权
标题翻译：自适应部分包解码
公开(公告)号：US20130250785A1
公开(公告)日：2013-09-26
申请号：US13567136
申请日：2012-08-06
申请人： Syed A. Mujtaba , Kee-Bong Song , Yuchul Kim , Xiaowen Wang , Tarik Tabet , Youngjae Kim
发明人： Syed A. Mujtaba , Kee-Bong Song , Yuchul Kim , Xiaowen Wang , Tarik Tabet , Youngjae Kim
IPC分类号： H04W24/00
CPC分类号： H04W28/048 , H04L1/0045 , H04L1/0047 , H04L1/0053 , H04W28/04 , H04W52/143 , H04W52/241
摘要： A user device receives packets from a base station. The user device may invoke decoding while the packet is still being received, based on the incomplete contents of a given packet. This “partial packet decoding” relies on the fact that the underlying information in the packet is encoded with redundancy (code rate less than one). If link quality is poor, the partial packet decoding is likely to be unsuccessful, i.e., to fail in its attempt to recover the underlying information. To avoid waste of power, the user device may be configured to apply one or more tests of link quality prior to invoking the partial packet decoding on a current packet.
摘要翻译：用户设备从基站接收分组。基于给定分组的不完整内容，用户设备可以在分组仍在接收时调用解码。这种“部分分组解码”依赖于以冗余（代码率小于1）对分组中的底层信息进行编码的事实。如果链路质量差，则部分分组解码可能不成功，即在尝试恢复基础信息时失败。为了避免浪费电力，用户设备可以被配置为在对当前分组调用部分分组解码之前应用一个或多个链路质量测试。

15. 发明申请

US20130064151A1 ADAPTIVE RECEIVE DIVERSITY DURING DISCONTINUOUS RECEPTION IN MOBILE WIRELESS DEVICE 有权
标题翻译：移动无线设备不连续接收时的自适应接收多样性
公开(公告)号：US20130064151A1
公开(公告)日：2013-03-14
申请号：US13231804
申请日：2011-09-13
申请人： Syed A. Mujtaba , Kee-Bong Song , Xiaowen Wang , Young Jae Kim , Vinay R. Majjigi , Johnson O. Sebeni , Romain Trilling , Tahir Shamim , Karthik Anantharaman
发明人： Syed A. Mujtaba , Kee-Bong Song , Xiaowen Wang , Young Jae Kim , Vinay R. Majjigi , Johnson O. Sebeni , Romain Trilling , Tahir Shamim , Karthik Anantharaman
IPC分类号： H04W52/02
CPC分类号： H04B7/082 , H04B7/0817 , H04B7/0871 , H04L43/0823
摘要： A mobile wireless device adapts receive diversity during discontinuous reception based on downlink signal quality, page indicators and page messages. When the downlink signal quality exceeds a pre-determined threshold, the mobile wireless device decodes a page indicator channel through an initial antenna, and otherwise, decodes a paging channel through the initial antenna without decoding the page indicator channel. The mobile wireless device switches to decoding the paging channel through an alternate antenna when a page indicator decodes as an erasure. When a paging message received through a single antenna decodes with an incorrect error checking code, the mobile wireless devices enables receive diversity through multiple antennas for subsequent decoding. The mobile wireless device switches between single antenna reception and multiple antenna reception based on tracking multiple consecutive error checking code failures and successes.
摘要翻译：移动无线设备基于下行链路信号质量，页面指示符和寻呼消息来适应不连续接收期间的接收分集。当下行链路信号质量超过预定阈值时，移动无线设备通过初始天线解码页面指示符信道，否则，通过初始天线对寻呼信道进行解码，而不对页面指示符信道进行解码。当页面指示符被解码为擦除时，移动无线设备切换到通过替代天线解码寻呼信道。当通过单个天线接收的寻呼消息用不正确的错误校验码进行解码时，移动无线设备能够通过多个天线进行接收分集以进行后续解码。基于跟踪多个连续的错误检查代码故障和成功，移动无线设备在单天线接收和多天线接收之间切换。

16. 发明申请

US20120282982A1 ELECTRONIC DEVICE WITH IDLE MODE ANTENNA SWITCHING 有权
标题翻译：具有空闲模式天线开关的电子设备
公开(公告)号：US20120282982A1
公开(公告)日：2012-11-08
申请号：US13098947
申请日：2011-05-02
申请人： Syed A. Mujtaba , Kee-Bong Song , Youngjae Kim
发明人： Syed A. Mujtaba , Kee-Bong Song , Youngjae Kim
IPC分类号： H04W88/02 , G01R29/08
CPC分类号： H04B7/0814 , H04W52/0245 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/26 , Y02D70/444
摘要： Electronic devices may be provided that contain wireless communication circuitry. The wireless communication circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. An electronic device may alternate between a sleep mode and a wake mode. During wake mode, the electronic device may monitor a paging channel in a wireless network for incoming paging signals. The device may use a selected one of the multiple antennas in monitoring the paging channel. If received signal quality is satisfactory, the device may maintain use of the selected one of the multiple antennas for subsequent wake period monitoring of the paging channel. If received signal quality falls below a threshold or is otherwise indicated to not be satisfactory, the device may switch to use of a different one of the multiple antennas in monitoring the paging channel. Other criteria may also be used in controlling the switching between antennas for paging channel monitoring.
摘要翻译：可以提供包含无线通信电路的电子设备。无线通信电路可以包括耦合到多个天线的射频收发器电路。电子设备可以在睡眠模式和唤醒模式之间交替。在唤醒模式期间，电子设备可以监视无线网络中的呼入寻呼信号的寻呼信道。该设备可以使用多个天线中所选择的一个来监视寻呼信道。如果接收到的信号质量令人满意，则设备可以保持对多个天线中所选择的一个天线的使用以用于寻呼信道的随后的唤醒周期监视。如果接收到的信号质量低于阈值或被指示为不令人满意，则在监视寻呼信道时，设备可以切换到使用多个天线中的不同的天线。其他标准也可以用于控制用于寻呼信道监测的天线之间的切换。

17. 发明授权

US07492701B2 Apparatus and method for controlling adaptive modulation and coding in an orthogonal frequency division multiplexing communication system 有权
标题翻译：用于在正交频分复用通信系统中控制自适应调制和编码的装置和方法
公开(公告)号：US07492701B2
公开(公告)日：2009-02-17
申请号：US10992164
申请日：2004-11-18
申请人： Kee-Bong Song , Dong-Jun Lee
发明人： Kee-Bong Song , Dong-Jun Lee
IPC分类号： H04J11/00
CPC分类号： H04L1/0009 , H04L1/0003 , H04L5/0007 , H04L5/0046 , H04L5/0048 , H04L5/006 , H04L25/0226 , H04L2025/03414 , H04W52/262
摘要： A method and apparatus for controlling AMC in an OFDM communication system in which an entire frequency band is divided into a plurality of sub-carrier bands. In the AMC controlling method, power and a number of transmission bits are calculated for each of the sub-carriers in a predetermined method for each of coding methods available in the OFDM communication system. A data rate for each of the coding methods is calculated based on the number of transmission bits and the power for each sub-carrier. A coding method having a highest of the calculated data rates is selected and a modulation method is determined according to a number of transmission bits in the determined coding method.
摘要翻译：一种用于在整个频带被划分为多个子载波频带的OFDM通信系统中控制AMC的方法和装置。在AMC控制方法中，对于OFDM通信系统中可用的每种编码方法，以预定方法为每个子载波计算功率和多个传输比特。基于每个子载波的传输比特数和功率来计算每个编码方法的数据速率。选择具有最高计算数据速率的编码方法，并且根据所确定的编码方法中的传输比特数来确定调制方法。

18. 发明授权

US09363005B2 Adaptive antenna diversity system 有权
标题翻译：自适应天线分集系统
公开(公告)号：US09363005B2
公开(公告)日：2016-06-07
申请号：US12941008
申请日：2010-11-05
申请人： Isabel G. Mahe , Jianxiong Shi , Kee-Bong Song , Ming Hu , William S. Burchill , Syed A. Mujtaba , Johnson O. Sebeni , Haining Zhang
发明人： Isabel G. Mahe , Jianxiong Shi , Kee-Bong Song , Ming Hu , William S. Burchill , Syed A. Mujtaba , Johnson O. Sebeni , Haining Zhang
IPC分类号： H04M1/00 , H04B7/08 , H04W52/02
CPC分类号： H04B7/0874 , H04B7/0825 , H04W52/0245 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/23 , Y02D70/26 , Y02D70/444
摘要： Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry with first and second ports that are coupled by switching circuitry to first and second antennas. A first receiver in the transceiver circuitry may be associated with the first port and a second receiver in the transceiver circuitry may be associated with the second port. An electronic device may be operated in a single receiver mode in which only one of the receivers is active to conserve power or a dual receiver mode in which signals from both antennas may be received in parallel to compare antenna performance. Based on antenna performance metrics, the electronic device may adjust the switching circuitry to ensure that an optimal antenna is being used.
摘要翻译：可以提供包含无线通信电路的电子设备。无线通信电路可以包括射频收发器电路，其中第一和第二端口由开关电路耦合到第一和第二天线。收发器电路中的第一接收器可以与第一端口相关联，并且收发器电路中的第二接收器可以与第二端口相关联。电子设备可以在单个接收机模式中操作，其中只有一个接收器有效地节省功率或双接收机模式，其中可以并行地接收来自两个天线的信号以比较天线性能。基于天线性能度量，电子设备可以调整开关电路以确保正在使用最佳天线。

19. 发明授权

US09002283B2 Antenna switching system with adaptive switching criteria 有权
标题翻译：具有自适应切换标准的天线切换系统
公开(公告)号：US09002283B2
公开(公告)日：2015-04-07
申请号：US13195761
申请日：2011-08-01
申请人： Syed A. Mujtaba , Kee-Bong Song
发明人： Syed A. Mujtaba , Kee-Bong Song
IPC分类号： H04B1/00 , H04B15/00 , H04B7/08
CPC分类号： H04B1/0064 , G01S19/13 , H04B1/1027 , H04B7/0808 , H04B7/082 , H04B7/0834 , H04W64/006 , H04W88/06
摘要： Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements may be gathered using the antennas and corresponding signal strength difference measurements may be produced to reflect which of the antennas is exhibiting superior performing. The signal strength difference measurements may be filtered using time-based averaging filters with different speeds. Corresponding filtered difference measurements may be compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold may be adjusted in real time based on computations of how much variation is exhibited as a function of time between the difference measurements filtered using the filters of different speeds. Information on device movement or other data may be used in making threshold adjustments.
摘要翻译：可以提供包含无线通信电路的电子设备。无线通信电路可以包括耦合到多个天线的射频收发器电路。可以使用天线收集信号强度测量值，并且可以产生相应的信号强度差异测量结果，以反映哪些天线表现出优异的性能。可以使用具有不同速度的基于时间的平均滤波器来过滤信号强度差测量。相应的滤波差分测量可以与诸如天线切换阈值的天线切换标准进行比较。可以基于使用不同速度的滤波器滤波的差分测量值作为时间的函数显示出多少变化的计算来实时地调整天线切换阈值。有关设备移动或其他数据的信息可用于进行阈值调整。

20. 发明申请

US20130267267A1 Assisted Management of Radio Resources across Dual Networks 有权
标题翻译：双网络无线电资源的辅助管理
公开(公告)号：US20130267267A1
公开(公告)日：2013-10-10
申请号：US13605898
申请日：2012-09-06
申请人： Syed Aon Mujtaba , Tarik Tabet , Paul V. Flynn , Kee-Bong Song
发明人： Syed Aon Mujtaba , Tarik Tabet , Paul V. Flynn , Kee-Bong Song
IPC分类号： H04W36/30 , H04W68/00 , H04W88/06
CPC分类号： H04W36/0066 , H04W36/0088 , H04W76/28
摘要： A user equipment (UE) operating in a communication system comprising a base station and one or more UEs. The UE may be configured to operate on or “camp” on two different networks with one radio. In this exemplary system, the radio may be normally connected to the first network (NW1) and may from time to time be “tuned away” from NW1 to a second network (NW2). The UE may inform NW1 that it has tuned away to another network, e.g., using start and end indicators. This information may prevent NW1 from wasting downlink capacity by unnecessarily allocating downlink resources to the UE during the tune-away. Alternatively, or in addition, this information may prevent NW1 from penalizing the UE, e.g., by reducing its future downlink allocations, since the UE does not respond to NW1 commands during the tune-away.
摘要翻译：在包括基站和一个或多个UE的通信系统中操作的用户设备（UE）。 UE可以被配置为在具有一个无线电的两个不同网络上操作或“驻留”。在该示例性系统中，无线电可以正常地连接到第一网络（NW1），并且可以不时地从NW1“被调离”到第二网络（NW2）。 UE可以通知NW1已经将其调离到另一个网络，例如使用开始和结束指示符。该信息可以防止NW1在调谐期间不必要地向UE分配下行链路资源来浪费下行链路容量。或者或另外，该信息可以防止NW1惩罚UE，例如通过减少其未来的下行链路分配，因为UE在调谐期间不响应NW1命令。

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