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1. 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。

2. 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.

3. 发明申请

WO2010033261A1 AN MMSE MIMO DECODER USING QR DECOMPOSITION 审中-公开
标题翻译：使用QR分解的MMSE MIMO解码器
公开(公告)号：WO2010033261A1
公开(公告)日：2010-03-25
申请号：PCT/US2009/032985
申请日：2009-02-03
申请人： QUALCOMM Incorporated , KIM, Youngjae , KIM, Je Woo , PARK, Jong Hyeon
发明人： KIM, Youngjae , KIM, Je Woo , PARK, Jong Hyeon
IPC分类号： H04L25/03
CPC分类号： H04L25/03159 , H04L25/0204 , H04L27/2647 , H04L2025/03426 , H04L2025/03617
摘要： Aspects of the disclosure provide unbiased channel equalization applied in a MIMO OFDM system with spatial multiplexing. According to certain embodiments, a MMSE receiver can be implemented with the QR decomposition (QRMMSE detection) instead of direct inversion of channel matrix by exploiting an augmented channel matrix. A simple and efficient bias removal technique is presented herein, whereby unbiased QRMMSE equalization may provide identical detection accuracy as a conventional unbiased MMSE approach. For certain embodiments, multiple access interference may be further reduced if the VBLAST version of the unbiased QRMMSE detection is applied.
摘要翻译：本公开的方面提供了在具有空间复用的MIMO OFDM系统中应用的无偏信道均衡。根据某些实施例，可以用QR分解（QRMMSE检测）来实现MMSE接收机，而不是通过利用增强的信道矩阵来直接反转信道矩阵。本文提出了一种简单有效的偏移去除技术，由此无偏差的QRMMSE均衡可以提供与传统的无偏差MMSE方法相同的检测精度。对于某些实施例，如果应用无偏差QRMMSE检测的VBLAST版本，则可以进一步减少多址接入干扰。

4. 发明申请

WO2011014435A1 METHOD AND APPARATUS FOR DETECTING A CHANNEL CONDITION FOR A WIRELESS COMMUNICATION DEVICE 审中-公开
标题翻译：用于检测无线通信设备的通道条件的方法和装置
公开(公告)号：WO2011014435A1
公开(公告)日：2011-02-03
申请号：PCT/US2010/043174
申请日：2010-07-24
申请人： QUALCOMM INCORPORATED , KIM, Youngjae , LU, Feng , GOTETI, Anil, Kumar , SIDI, Jonathan
发明人： KIM, Youngjae , LU, Feng , GOTETI, Anil, Kumar , SIDI, Jonathan
IPC分类号： H04B17/00
CPC分类号： H04B17/3911 , H04B17/23
摘要： A method for detecting a channel condition for a wireless communication device is provided. The method includes measuring a plurality of power levels as received by the wireless communication device; determining a metric based on the plurality of power level measurements; and generating a high-speed fading indication signal based on the metric. An apparatus for performing the method is also disclosed herein.
摘要翻译：提供了一种用于检测无线通信设备的信道状况的方法。该方法包括测量由无线通信设备接收的多个功率电平; 基于所述多个功率电平测量确定度量; 以及基于所述度量产生高速衰落指示信号。本文还公开了一种用于执行该方法的装置。

5. 发明申请

WO2010104980A1 ADAPTIVE TRACKING STEPS FOR TIME AND FREQUENCY TRACKING LOOPS 审中-公开
标题翻译：适用于时间和频率跟踪的自适应跟踪步骤
公开(公告)号：WO2010104980A1
公开(公告)日：2010-09-16
申请号：PCT/US2010/026866
申请日：2010-03-10
申请人： QUALCOMM INCORPORATED , SONG, Wei-Jei , PALAKODETY, Sivaram, S. , LU, Feng , KIM, Youngjae , GOTETI, Anil, Kumar , ZHANG, Danlu
发明人： SONG, Wei-Jei , PALAKODETY, Sivaram, S. , LU, Feng , KIM, Youngjae , GOTETI, Anil, Kumar , ZHANG, Danlu
IPC分类号： H03L7/107 , H04L27/233
CPC分类号： H04B17/309 , H04B17/21 , H04B17/336 , H04L2027/0024
摘要： A wireless communications method is provided. The method includes analyzing one or more channel conditions from a wireless communication and automatically adjusting a frequency tracking loop gain or a time tracking loop gain in view of the channel conditions.
摘要翻译：提供了一种无线通信方法。该方法包括从无线通信分析一个或多个信道条件，并根据信道条件自动调整频率跟踪环路增益或时间跟踪环路增益。

6. 发明申请

WO2012151092A1 ELECTRONIC DEVICE WITH IDLE MODE ANTENNA SWITCHING 审中-公开
标题翻译：具有空闲模式天线开关的电子设备
公开(公告)号：WO2012151092A1
公开(公告)日：2012-11-08
申请号：PCT/US2012035013
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
CPC分类号： H04B7/0814 , H04W52/0245 , Y02D70/00 , 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。

7. 发明申请

WO2010078062A1 METHODS AND SYSTEMS FOR CO-CHANNEL INTERFERENCE CANCELLATION IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中共频干扰消除的方法与系统
公开(公告)号：WO2010078062A1
公开(公告)日：2010-07-08
申请号：PCT/US2009/068607
申请日：2009-12-17
申请人： QUALCOMM INCORPORATED , KIM, Youngjae , KIM, Je Woo , PARK, Jong Hyeon , NARASIMHA, Madihally J.
发明人： KIM, Youngjae , KIM, Je Woo , PARK, Jong Hyeon , NARASIMHA, Madihally J.
IPC分类号： H04B7/02
CPC分类号： H04B7/024
摘要： Certain embodiments of the present disclosure relate to methods for mitigating interference of signals transmitted to a mobile station (MS) from a plurality of neighboring base stations. By applying a proposed spatio-frequency modulation (SFM) technique at a serving base station (BS) and at each interfering BS, a co-channel interference (CCI) from interfering base stations can be efficiently mitigated at the MS and signal transmitted from the serving BS can be more accurately decoded.
摘要翻译：本公开的某些实施例涉及用于减轻从多个相邻基站发送到移动站（MS）的信号的干扰的方法。通过在服务基站（BS）和每个干扰BS处应用提出的空间 - 频率调制（SFM）技术，可以在MS处有效地减轻来自干扰基站的同信道干扰（CCI），并从服务BS可以更准确地解码。

8. 发明申请

WO2010033524A1 METHODS AND SYSTEMS FOR HYBRID MIMO DECODING 审中-公开
标题翻译：混合MIMO解码的方法和系统
公开(公告)号：WO2010033524A1
公开(公告)日：2010-03-25
申请号：PCT/US2009/057057
申请日：2009-09-15
申请人： QUALCOMM INCORPORATED , PARK, Jong Hyeon , KIM, Youngjae , KIM, Je Woo
发明人： PARK, Jong Hyeon , KIM, Youngjae , KIM, Je Woo
IPC分类号： H04L25/03 , H04L25/06
CPC分类号： H04L25/03254 , H04L1/0054 , H04L1/0055 , H04L25/03171 , H04L25/03286 , H04L25/067 , H04L2025/03726
摘要： Certain embodiments of the present disclosure allow a receiver to utilize both a minimum mean square error (MMSE) detection algorithm and a maximum likelihood (ML) detection algorithm. The receiver may control, based on various conditions, a mode selection signal to select between output generated with the MMSE detection algorithm and the ML detection algorithm. By sharing logical components, certain embodiments may allow a receiver to implement both ML and MMSE detection algorithms with minimal computational overhead when compared to implementing a single one of the decoding algorithms.
摘要翻译：本公开的某些实施例允许接收机同时使用最小均方误差（MMSE）检测算法和最大似然（ML）检测算法。接收机可以根据各种条件控制模式选择信号，以在MMSE检测算法产生的输出和ML检测算法之间进行选择。通过共享逻辑组件，当与实现单个解码算法相比时，某些实施例可以允许接收机以最小的计算开销来实现ML和MMSE检测算法。

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