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1. 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。

2. 发明申请

WO2007082286A3 DEVICE AND METHOD FOR PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED SIGNALS WITH VARIABLE PILOT SUBCARRIER SPACING 审中-公开
标题翻译：用于基于OFDM的信号进行信道估计的设备和方法，其具有可变引导子载波间隔
公开(公告)号：WO2007082286A3
公开(公告)日：2008-01-17
申请号：PCT/US2007060421
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
发明人： SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
IPC分类号： H04J11/00
CPC分类号： H04W24/00 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04W48/08
摘要： A device and method for performing channel estimation for an OFDM- based wireless communication system modifies pilot subcarrier spacing to use a set of interpolation coefficients associated with a different pilot subcarrier spacing.
摘要翻译：用于对基于OFDM的无线通信系统执行信道估计的装置和方法修改导频子载波间隔以使用与不同导频子载波间隔相关联的一组内插系数。

3. 发明申请

WO2007050927A3 QUASI-ORTHOGONAL ALLOCATION OF CODES IN TD-CDMA SYSTEMS 审中-公开
标题翻译： TD-CDMA系统中码的准正交分配
公开(公告)号：WO2007050927A3
公开(公告)日：2007-07-12
申请号：PCT/US2006042061
申请日：2006-10-27
申请人： QUALCOMM INC , SAMBHWANI SHARAD DEEPAK , SONG KEE-BONG , MONTOJO JUAN
发明人： SAMBHWANI SHARAD DEEPAK , SONG KEE-BONG , MONTOJO JUAN
IPC分类号： H04J11/00 , H04B1/7097 , H04B7/08 , H04J13/18 , H04Q3/26
CPC分类号： H04J13/18 , H01Q3/26 , H04B1/7097 , H04B1/71055 , H04B1/71072 , H04B7/08 , H04J13/0048 , H04J13/0074
摘要： Systems and methodologies are described that facilitate increasing throughput in a time-division duplexed CDMA wireless communication environment. A set of orthogonal Walsh code sequences can be assigned to a first group of users in a network sector, and a duplicate set of orthogonal Walsh code sequences can be assigned to at least a second group of users in the sector. A number of receive antennas equal or greater than to the number of duplicate code sets being assigned can be deployed to linearly scale sector capacity to meet user demand. Additionally, user devices employing duplicate Walsh code sequence assignments at a base station serving the sector can be distinguished from each other, and timing offsets between such users can be enforced to mitigate any jamming effect at the base station receiver. Still furthermore, user device channel requirements in the sector can be continuously evaluated and an appropriate number of antennas can be dynamically deployed to provide scalable service to all such user devices.
摘要翻译：描述了有助于增加时分双工CDMA无线通信环境中的吞吐量的系统和方法。可以将一组正交沃尔什码序列分配给网络扇区中的第一组用户，并且可以将重复的正交沃尔什码序列组分配给该扇区中的至少第二组用户。可以部署大量等于或大于分配的重复码集数量的接收天线，以线性缩放扇区容量以满足用户需求。另外，在服务扇区的基站处采用重复的沃尔什码序列分配的用户设备可以彼此区分，并且可以强制这些用户之间的定时偏移以减轻基站接收机处的任何干扰效应。另外，可以连续地评估扇区中的用户设备信道需求，并且可以动态部署适当数量的天线以向所有这些用户设备提供可扩展服务。

4. 发明申请

WO2013022774A2 ADAPTIVE RANDOM ACCESS CHANNEL RETRANSMISSION 审中-公开
标题翻译：自适应随机访问信道重传
公开(公告)号：WO2013022774A2
公开(公告)日：2013-02-14
申请号：PCT/US2012/049578
申请日：2012-08-03
申请人： APPLE INC. , SONG, Kee-bong , WANG, Xiaowen , MUJTABA, Syed, Aon
发明人： SONG, Kee-bong , WANG, Xiaowen , MUJTABA, Syed, Aon
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04B17/318 , H04W52/146 , H04W52/241 , H04W52/367 , H04W52/48 , H04W52/50
摘要： A mobile wireless device adapts transmit power levels and number of retransmissions of a preamble sent to a wireless network. The mobile wireless device measures characteristics of a downlink signal received from the wireless network. The mobile wireless device transmits a series of preambles to the wireless network, each successive preamble having an increased power level, starting at a power level based on the measured received signal characteristics and on parameters received from the wireless network, up to a maximum transmit power level. When the transmit power level of the preamble exceeds the maximum transmit power level and when the measured downlink signal quality falls below a threshold, the mobile wireless device limits the number of preamble retransmission to less than an allowed maximum number of retransmissions. A minimum number of retransmissions is determined and adapted to higher values for larger measured values of downlink signal quality.
摘要翻译：移动无线设备适配发送到无线网络的前导码的发送功率电平和重传次数。移动无线设备测量从无线网络接收的下行链路信号的特征。移动无线设备向无线网络发送一系列前导码，每个连续的前导码具有增加的功率电平，从基于测量的接收信号特性的功率电平和从无线网络接收的参数开始，直到最大发射功率水平。当前导码的发射功率电平超过最大发射功率电平并且当测量的下行链路信号质量下降到阈值以下时，移动无线设备将前导码重传的数量限制为小于允许的最大重发次数。对于下行链路信号质量的较大测量值，确定最小重传次数并将其调整为较高值。

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

WO2008137860A1 CHANNEL PROFILE ESTIMATION FOR OFDM-BASED COMMUNICATION SYSTEM 审中-公开
标题翻译：用于基于OFDM的通信系统的信道简档估计
公开(公告)号：WO2008137860A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/062678
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： H04J11/00
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简档估计的设备和方法使用平均的频率相干度量来选择特定信道简档，其是当前信道分布估计。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的频率相干度量。所选择的信道简档可以用于信道估计以及链路适配，以改善这些过程的性能。

7. 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。

8. 发明申请

WO2007082285A3 DEVICE AND METHOD OF PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：基于OFDM无线通信系统的信道估计的设备及方法
公开(公告)号：WO2007082285A3
公开(公告)日：2008-01-31
申请号：PCT/US2007060419
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD , SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
发明人： SONG KEE-BONG , ZENG CHAOHUANG , CHOI WON-JOON
IPC分类号： H04B1/00
CPC分类号： H04L25/0232 , H04L5/023 , H04L27/2647
摘要： A device and method of performing channel estimation for an OFDM- based wireless communication system performs a Least Square interpolation with a statistical channel profile consideration on pilot channel estimates to derive data channel estimates at data subcarrier locations.
摘要翻译：执行基于OFDM的无线通信系统的信道估计的装置和方法在导频信道估计上执行具有统计信道简档考虑的最小二乘插值，以导出数据子载波位置处的数据信道估计。

9. 发明申请

WO2007082286A2 DEVICE AND METHOD FOR PERFORMING CHANNEL ESTIMATION FOR OFDM-BASED SIGNALS WITH VARIABLE PILOT SUBCARRIER SPACING 审中-公开
标题翻译：用于基于OFDM的信号进行信道估计的设备和方法，其具有可变引导子载波间隔
公开(公告)号：WO2007082286A2
公开(公告)日：2007-07-19
申请号：PCT/US2007/060421
申请日：2007-01-11
申请人： AMICUS WIRELESS TECHNOLOGY LTD. , SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-Joon
发明人： SONG, Kee-bong , ZENG, Chaohuang , CHOI, Won-Joon
IPC分类号： H04J11/00
CPC分类号： H04W24/00 , H04L5/0007 , H04L5/0048 , H04L25/0226 , H04L25/0232 , H04W48/08
摘要： A device and method for performing channel estimation for an OFDM- based wireless communication system modifies pilot subcarrier spacing to use a set of interpolation coefficients associated with a different pilot subcarrier spacing.
摘要翻译：用于对基于OFDM的无线通信系统执行信道估计的装置和方法修改导频子载波间隔以使用与不同导频子载波间隔相关联的一组内插系数。

10. 发明申请

WO2013022774A3 ADAPTIVE RANDOM ACCESS CHANNEL RETRANSMISSION 审中-公开
标题翻译：自适应随机访问通道恢复
公开(公告)号：WO2013022774A3
公开(公告)日：2013-04-18
申请号：PCT/US2012049578
申请日：2012-08-03
申请人： APPLE INC , SONG KEE-BONG , WANG XIAOWEN , MUJTABA SYED AON
发明人： SONG KEE-BONG , WANG XIAOWEN , MUJTABA SYED AON
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04B17/318 , H04W52/146 , H04W52/241 , H04W52/367 , H04W52/48 , H04W52/50
摘要： A mobile wireless device adapts transmit power levels and number of retransmissions of a preamble sent to a wireless network. The mobile wireless device measures characteristics of a downlink signal received from the wireless network. The mobile wireless device transmits a series of preambles to the wireless network, each successive preamble having an increased power level, starting at a power level based on the measured received signal characteristics and on parameters received from the wireless network, up to a maximum transmit power level. When the transmit power level of the preamble exceeds the maximum transmit power level and when the measured downlink signal quality falls below a threshold, the mobile wireless device limits the number of preamble retransmission to less than an allowed maximum number of retransmissions. A minimum number of retransmissions is determined and adapted to higher values for larger measured values of downlink signal quality.
摘要翻译：移动无线设备适配发送功率电平和发送到无线网络的前导码的重传次数。移动无线设备测量从无线网络接收的下行链路信号的特性。移动无线设备向无线网络发送一系列前导码，每个连续的前同步码具有增加的功率电平，从基于所测量的接收信号特性的功率电平和从无线网络接收的参数开始，直到最大发射功率水平。当前导码的发射功率电平超过最大发射功率电平时，并且当所测量的下行链路信号质量低于阈值时，移动无线设备将前导码重传的数量限制为小于允许的最大重发次数。确定最小重传次数并适应较大的下行链路信号质量测量值的值。

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