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1. 发明申请

WO2013022702A1 ELECTRONIC DEVICE WITH ANTENNA SWITCHING CAPABILITIES 审中-公开
标题翻译：具有天线切换能力的电子设备
公开(公告)号：WO2013022702A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/049342
申请日：2012-08-02
申请人： APPLE INC. , MUJTABA, Syed, Aon , SONG, Kee-Bong
发明人： MUJTABA, Syed, Aon , SONG, Kee-Bong
IPC分类号： H04B7/08
CPC分类号： H04B7/0811 , H04B7/0808 , H04B7/0817
摘要： Electronic devices may be provided that contain wireless communications circuitry capable of supporting time division multiple access. 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 computed to reflect which of the antennas is exhibiting superior performance. The signal strength measurements may be made by measuring receive power levels in a beacon channel during idle time slots while toggling its antennas in and out of use or by detecting for the presence of non-silent traffic channel frames or silence indicator description frames and measuring corresponding receive power levels while toggling its antennas in and out of use. Beacon-channel-based measurements and non-silent-frame-based measurements may be used for electronic devices with receive diversity by simultaneously receiving frames of interest using each of its antennas and making corresponding measurements in parallel.
摘要翻译：可以提供包含能够支持时分多址的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。可以使用天线来收集信号强度测量值，并且可以计算相应的信号强度差测量值，以反映哪些天线表现出优异的性能。信号强度测量可以通过在空闲时隙期间测量信标信道中的接收功率电平，同时切换其天线进出使用或通过检测非静默业务信道帧或静音指示符描述帧的存在并测量相应的在切换天线的同时切换和使用接收功率电平。基于信标通道的测量和非静音帧测量可以用于具有接收分集的电子设备，通过使用其每个天线同时接收感兴趣的帧并且并行地进行相应的测量。

2. 发明申请

WO2013040151A1 ADAPTIVE RECEIVE DIVERSITY DURING DISCONTINUOUS RECEPTION IN A MOBILE WIRELESS DEVICE 审中-公开
标题翻译：在移动无线设备中不连续接收时的自适应接收多样性
公开(公告)号：WO2013040151A1
公开(公告)日：2013-03-21
申请号：PCT/US2012/055062
申请日：2012-09-13
申请人： APPLE INC. , MUJTABA, Syed, Aon , SONG, Kee-Bong , WANG, Xiaowen , KIM, Young, Jae , MAJJIGI, Vinay, R. , SEBENI, Johnson, O. , TRILLING, Romain , SHAMIM, Tahir , ANATHARAMAN, Karthik
发明人： MUJTABA, Syed, Aon , SONG, Kee-Bong , WANG, Xiaowen , KIM, Young, Jae , MAJJIGI, Vinay, R. , SEBENI, Johnson, O. , TRILLING, Romain , SHAMIM, Tahir , ANATHARAMAN, Karthik
IPC分类号： H04B7/08
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，通过初始天线解码寻呼信道，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。

3. 发明申请

WO2013019718A1 METHODS FOR TRANSMIT ANTENNA SWITCHING DURING UPLINK ACCESS PROBING 审中-公开
标题翻译：在上行链路访问探测中发送天线切换的方法
公开(公告)号：WO2013019718A1
公开(公告)日：2013-02-07
申请号：PCT/US2012/048836
申请日：2012-07-30
申请人： APPLE INC. , MUJTABA, Syed A. , KIM, Youngjae , SONG, Kee-Bong , WANG, Xiaowen
发明人： MUJTABA, Syed A. , KIM, Youngjae , SONG, Kee-Bong , WANG, Xiaowen
IPC分类号： H04B7/06 , H04W52/50 , H04B7/04
CPC分类号： H04W52/50 , H04B7/0404 , H04B7/0604
摘要： Electronic devices are be provided that contain wireless communication circuitry. The wireless communication circuitry includes radio-frequency transceiver circuitry coupled to first and second antennas. An electronic device sends network access probe signals to a base station in a wireless network. If the base station responds with a corresponding acknowledgement, the electronic device and base station establish a wireless communication link such as a cellular telephone link. In response to failure to receive the acknowledgement signal from the base station, the electronic device increases the transmit power of a successive network access probe signal. The electronic device switchs between use of the first and second antennas when transmitting the network access probe signals. The electronic device alternates between the first and second antennas or uses other antenna usage patterns.
摘要翻译：提供包含无线通信电路的电子设备。无线通信电路包括耦合到第一和第二天线的射频收发器电路。电子设备向无线网络中的基站发送网络接入探测信号。如果基站用相应的确认进行响应，则电子设备和基站建立诸如蜂窝电话链路的无线通信链路。响应于不能从基站接收确认信号，电子设备增加了连续网络接入探测信号的发射功率。当发送网络接入探测信号时，电子设备在使用第一和第二天线之间切换。电子设备在第一和第二天线之间交替，或者使用其它天线使用模式。

4. 发明申请

WO2012061414A8 ADAPTIVE ANTENNA DIVERSITY SYSTEM 审中-公开
公开(公告)号：WO2012061414A8
公开(公告)日：2012-05-10
申请号：PCT/US2011/058821
申请日：2011-11-01
申请人： APPLE INC. , MAHE, Isabel, G. , SHI, Jianxiong , SONG, Kee-Bong , HU, Ming , BURCHILL, William, S. , MUJTABA, Syed, A. , SEBENI, Johanson, O. , ZHANG, Haining
发明人： MAHE, Isabel, G. , SHI, Jianxiong , SONG, Kee-Bong , HU, Ming , BURCHILL, William, S. , MUJTABA, Syed, A. , SEBENI, Johanson, O. , ZHANG, Haining
IPC分类号： H04W52/02 , H04B7/08
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.

5. 发明申请

WO2012151092A8 ELECTRONIC DEVICE WITH IDLE MODE ANTENNA SWITCHING 审中-公开
公开(公告)号：WO2012151092A8
公开(公告)日：2012-11-08
申请号：PCT/US2012/035013
申请日：2012-04-25
申请人： APPLE INC. , MUJTABA, Syed, A. , SONG, Kee-Bong , KIM, Youngjae
发明人： MUJTABA, Syed, A. , SONG, Kee-Bong , KIM, Youngjae
IPC分类号： H04B7/08
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.

6. 发明申请

WO2013019720A1 ANTENNA SWITCHING SYSTEM WITH ADAPTIVE SWITCHING CRITERIA 审中-公开
标题翻译：具有自适应开关标准的天线开关系统
公开(公告)号：WO2013019720A1
公开(公告)日：2013-02-07
申请号：PCT/US2012/048838
申请日：2012-07-30
申请人： APPLE INC. , MUJTABA, Syed A. , SONG, Kee-Bong
发明人： MUJTABA, Syed A. , SONG, Kee-Bong
IPC分类号： 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 are be provided that contain wireless communications circuitry. The wireless communications circuitry includes radio-frequency transceiver circuitry coupled to multiple antennas. Signal strength measurements are gathered using the antennas and corresponding signal strength difference measurements are produced to reflect which of the antennas is exhibiting superior performing. The signal strength difference measurements are filtered using time-based averaging filters with different speeds. Corresponding filtered difference measurements are compared to antenna switching criteria such as antenna switching thresholds. An antenna switching threshold is 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. In addition, information on device movement or other data may be used in making threshold adjustments.
摘要翻译：提供包含无线通信电路的电子设备。无线通信电路包括耦合到多个天线的射频收发器电路。使用天线收集信号强度测量值，产生相应的信号强度差测量结果，以反映哪些天线表现出优异的性能。使用具有不同速度的基于时间的平均滤波器对信号强度差测量值进行滤波。将相应的滤波差分测量与天线切换标准（例如天线切换阈值）进行比较。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的变化量的计算，实时地调整天线切换阈值。此外，关于设备移动或其他数据的信息可用于进行阈值调整。

7. 发明申请

WO2010090791A1 METHOD AND APPARATUS FOR PERFORMING JOINT DETECTION WITH A COMMON MIDAMBLE 审中-公开
标题翻译：用于通过普通框架进行联合检测的方法和装置
公开(公告)号：WO2010090791A1
公开(公告)日：2010-08-12
申请号：PCT/US2010/020604
申请日：2010-01-11
申请人： QUALCOMM Incorporated , AGRAWAL, Avneesh , MONTOJO, Juan , SONG, Kee-Bong , SAMBHWANI, Sharad Deepak
发明人： AGRAWAL, Avneesh , MONTOJO, Juan , SONG, Kee-Bong , SAMBHWANI, Sharad Deepak
IPC分类号： H04B1/707
CPC分类号： H04B1/71055 , H04B2201/70702 , H04B2201/70703
摘要： Techniques for performing joint detection with a common midamble for downlink transmission are described. In one design, a user equipment (UE) may obtain samples for a burst transmitted by a Node B on the downlink. The burst may include at least one data field and a common midamble. The UE may derive a channel impulse response estimate for each of multiple orthogonal codes based on (i) a channel impulse response estimate derived based on samples for the common midamble and (ii) a traffic-to-pilot ratio (T2P) estimated for that orthogonal code based on the samples for burst. The UE may perform joint detection, for the multiple orthogonal codes, on samples for the at least one data field based on the multiple channel impulse response estimates.
摘要翻译：描述用于执行用于下行链路传输的公共中间码的联合检测的技术。在一种设计中，用户设备（UE）可以在下行链路上获得由节点B发送的突发的采样。突发可以包括至少一个数据字段和公共中间码。 UE可以基于（i）基于用于公共中间码的样本导出的信道脉冲响应估计和（ii）针对该正交码估计的业务导频比（T2P），为多个正交码中的每一个导出信道脉冲响应估计基于用于突发的样本的正交码。基于多信道脉冲响应估计，UE可针对多个正交码针对至少一个数据字段的采样执行联合检测。

8. 发明申请

WO2008137856A1 CHANNEL ESTIMATION FOR OFDM-BASED WIRELESS COMMUNICATION SYSTEM USING SPARSELY SPACED PILOT SUBCARRIERS 审中-公开
标题翻译：基于OFDM的无线通信系统的信道估计使用SPARSELY SPACED PILOT SUBCARRIERS
公开(公告)号：WO2008137856A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/062671
申请日：2008-05-05
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , SONG, Kee-Bong , CHOI, Won-Joon
发明人： SONG, Kee-Bong , CHOI, Won-Joon
IPC分类号： H04Q7/00
CPC分类号： H04L25/0204 , H04L25/0232
摘要： A device and method for performing a channel estimation for an OFDM-based wireless communication system using sparsely spaced pilot subcarriers estimates missing pilot subcarriers in an interpolation window using pilot subcarriers that are outside of the interpolation window to produce estimated pilot subcarriers for the interpolation window. The pilot subcarriers in the interpolationwindow and the estimated pilot subcarrier are used to compute pilot channelestimates for the interpolation window, which are then used to derive data channel estimates for the interpolation window.
摘要翻译：使用稀疏间隔的导频子载波对基于OFDM的无线通信系统进行信道估计的装置和方法使用在内插窗口之外的导频子载波来估计内插窗口中的缺失导频子载波，以产生插值窗口的估计导频子载波。内插窗口中的导频子载波和估计的导频子载波用于计算插值窗口的导频信道估计，然后将其用于导出内插窗口的数据信道估计。

9. 发明申请

WO2008148082A1 SOFT-BIT DE-MAPPING DEVICE AND METHOD OF GENERATING SOFT BITS FOR DECODING 审中-公开
标题翻译：软位置去映像器件及其生成软件位置解码方法
公开(公告)号：WO2008148082A1
公开(公告)日：2008-12-04
申请号：PCT/US2008/064848
申请日：2008-05-27
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , GHO, Gwang-Hyun , SONG, Kee-Bong , CHOI, Won-Joon
发明人： GHO, Gwang-Hyun , SONG, Kee-Bong , CHOI, Won-Joon
IPC分类号： G06F11/00
CPC分类号： H04L1/0045 , H04L1/0052 , H04L5/0007 , H04L25/067 , H04L27/2647 , H04L27/38 , H04L2025/03401 , H04L2025/03414 , H04L2025/0342
摘要： A soft-bit de-mapping device and method of generating soft bits for decoding quantizes a log-likelihood ratio (LLR) value for a received value using functions bits and channel parameter bits to generate the soft bits. The function bits are generated by quantizing an LLR function for the received value, which includes modifying an original curve of the LLR function to a modified curve such that a segment of the original curve with the lowest slope is protected in the modified curve for a fixed equal quantization step size. The channel parameter bits are generated by quantizing a channel parameter for the received value to generate channel.
摘要翻译：产生软比特的软位解映射设备和方法用于使用功能位和信道参数比特量化接收值的对数似然比（LLR）值，以产生软比特。功能位通过量化接收值的LLR函数而产生，其包括将LLR函数的原始曲线修改为修改曲线，使得具有最低斜率的原始曲线的段在修改曲线中被保护用于固定的等量化步长。通过对接收到的值的信道参数进行量化以产生信道来生成信道参数位。

10. 发明申请

WO2008137845A1 SYSTEM AND METHOD FOR PERFORMING A HARQ OPERATION IN AN OFDM-BASED RECEIVER 审中-公开
标题翻译：用于在基于OFDM的接收机中执行HARQ操作的系统和方法
公开(公告)号：WO2008137845A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/062657
申请日：2008-05-05
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , GHO, Gwang-hyun , SONG, Kee-Bong , CHOI, Won-Joon
发明人： GHO, Gwang-hyun , SONG, Kee-Bong , CHOI, Won-Joon
IPC分类号： H04J11/00
CPC分类号： H04L25/067 , H04L1/1845 , H04L5/0007
摘要： A system and method for performing a HARQ operation in an OFDM- based receiver utilizes a linked list scheme for a HARQ buffer, which is used to store soft information for HARQ entities with decoding errors. The device and method also combine soft information of a particular HARQ entity with previous updated soft information of the particular HARQ entity using a combined scaling factor that depends on a current scaling factor and a previous combined scaling factor.
摘要翻译：用于在基于OFDM的接收机中执行HARQ操作的系统和方法利用用于HARQ缓冲器的链路列表方案，其用于存储具有解码错误的HARQ实体的软信息。所述设备和方法还使用取决于当前缩放因子和先前组合缩放因子的组合缩放因子将特定HARQ实体的软信息与特定HARQ实体的先前更新的软信息组合。

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