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1. 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。

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

WO2013106033A1 DUAL NETWORK MOBILE DEVICE RADIO RESOURCE MANAGEMENT 审中-公开
标题翻译：双网络移动设备无线资源管理
公开(公告)号：WO2013106033A1
公开(公告)日：2013-07-18
申请号：PCT/US2012/032615
申请日：2012-04-06
申请人： APPLE INC. , ZHAO, Wen , MUJTABA, Syed A. , WANG, Xiaowen , MAJJIGI, Vinay R. , MAHE, Isabel G.
发明人： ZHAO, Wen , MUJTABA, Syed A. , WANG, Xiaowen , MAJJIGI, Vinay R. , MAHE, Isabel G.
IPC分类号： H04W24/00
CPC分类号： H04W72/048 , H04L5/0092 , H04W68/12 , H04W72/00 , H04W72/04 , H04W88/06
摘要： A single chip mobile wireless device capable of receiving and transmitting over one wireless network at a time maintains registration on two wireless communication networks that each use different communication protocols in parallel. Periodically, the mobile wireless device tunes one or more receivers from a first wireless network to a second wireless network in order to listen for paging messages addressed to the mobile wireless device from the second wireless network. The first wireless network suspends allocation of radio resources to the mobile wireless device based on receipt of a suspension message from the mobile wireless device, or based on knowledge of a paging cycle for mobile wireless device in the second wireless network, or based on detection of an out of synchronization condition with the mobile wireless device.
摘要翻译：一次能够通过一个无线网络接收和发送的单芯片移动无线设备在两个并行地使用不同通信协议的无线通信网络上保持注册。周期性地，移动无线设备将一个或多个接收器从第一无线网络调谐到第二无线网络，以便从第二无线网络监听寻址到移动无线设备的寻呼消息。第一无线网络基于接收到来自移动无线设备的暂停消息，或者基于第二无线网络中针对移动无线设备的寻呼周期的知识，或基于对第二无线设备的检测与移动无线设备不同步的情况。

4. 发明申请

WO2012097332A2 METHODS FOR COORDINATED SIGNAL RECEPTION ACROSS INTEGRATED CIRCUIT BOUNDARIES 审中-公开
标题翻译：通过集成电路边界协调信号接收的方法
公开(公告)号：WO2012097332A2
公开(公告)日：2012-07-19
申请号：PCT/US2012/021365
申请日：2012-01-13
申请人： APPLE INC. , MUJTABA, Syed, A. , CHAUDHARY, Madhusudan , ELANGOVAN, Thanigaivelu , ANANTHARAMAN, Karthik , DOU, Weiping , MAHE, Isabel, G.
发明人： MUJTABA, Syed, A. , CHAUDHARY, Madhusudan , ELANGOVAN, Thanigaivelu , ANANTHARAMAN, Karthik , DOU, Weiping , MAHE, Isabel, G.
IPC分类号： H04W52/02 , H04B7/08
CPC分类号： H04B1/44 , H04B7/0608 , H04B7/0689 , H04B7/0802 , H04W52/02 , H04W52/028 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/164 , Y02D70/23 , Y02D70/26 , Y02D70/444
摘要： A wireless electronic device having first and second baseband processors is provided. In one suitable arrangement, radio-frequency power splitters and adjustable low noise amplifiers may be form in the receive paths. The use of power splitters allow signals associated with the first and second baseband processors to be received in parallel. In another suitable arrangement, radio-frequency switches are used in place of the power splitters. The states of the switches may be controlled using at least one of the first and second baseband processors. The use of switches instead of power splitters requires that wake periods associated with the first baseband processor and wake periods associated with the second baseband processor are non-overlapping. To ensure minimal wake period collision, a wake period associated with the second baseband processor may be positioned at a midpoint between two successive wake periods associated with the first baseband processor.
摘要翻译：提供了具有第一和第二基带处理器的无线电子设备。在一种合适的布置中，可以在接收路径中形成射频功率分配器和可调节的低噪声放大器。功率分配器的使用允许并行地接收与第一和第二基带处理器相关联的信号。在另一种合适的布置中，使用射频开关代替功率分配器。可以使用第一和第二基带处理器中的至少一个来控制开关的状态。使用开关而不是功率分配器要求与第一基带处理器相关联的唤醒周期和与第二基带处理器相关联的唤醒周期是不重叠的。为了确保最小的唤醒周期冲突，与第二基带处理器相关联的唤醒周期可以位于与第一基带处理器相关联的两个连续的唤醒周期之间的中点处。

5. 发明申请

WO2008137443A1 METHOD FOR SELECTING CONSTELLATION ROTATION ANGLES FOR QUASI-ORTHOGONAL SPACE-TIME AND SPACE-FREQUENCY BLOCK CODING 审中-公开
标题翻译：选择正交正交空间时间和空间频率编码的坐标旋转角度的方法
公开(公告)号：WO2008137443A1
公开(公告)日：2008-11-13
申请号：PCT/US2008/061954
申请日：2008-04-30
申请人： AGERE SYSTEMS INC. , MUJTABA, Syed , WANG, Xiaowen
发明人： MUJTABA, Syed , WANG, Xiaowen
IPC分类号： G06F11/00
CPC分类号： H04L1/0643 , H04L1/0606
摘要： In one embodiment, the present invention generates a single rotation angle that may be used to maximize diversity of a quasi-orthogonal space-time block code that encodes groups of four data symbols. Two rotation angles corresponding the first two data symbols in a group are set to zero, and two rotation angles corresponding to the second two data symbols in a group are set to a single initial value. A codeword distance matrix is determined for each possible combination of codewords and erroneously decoded codewords that may be generated using the initial rotation angle, and the minimum of the determinants of these matrices is selected. This process is repeated to generate a plurality of minimum determinants, and, for each iteration, a different single rotation angle corresponding to the second two data symbols is used. Then, a single rotation angle is selected that corresponds to the maximum of the minimum determinants.
摘要翻译：在一个实施例中，本发明产生单个旋转角度，其可用于最大化对四个数据符号组进行编码的准正交空时块代码的分集。对应于组中的前两个数据符号的两个旋转角度被设置为零，并且与组中的第二两个数据符号相对应的两个旋转角度被设置为单个初始值。针对可能使用初始旋转角度生成的码字和错误解码的码字的每个可能组合来确定码字距离矩阵，并且选择这些矩阵的最小值。重复该过程以产生多个最小决定因素，并且对于每个迭代，使用与第二两个数据符号相对应的不同的单个旋转角度。然后，选择对应于最小决定因素的最大值的单个旋转角度。

6. 发明申请

WO2006086493A1 METHOD AND APPARATUS FOR PREAMBLE TRAINING WITH SHORTENED LONG TRAINING FIELD IN A MULTIPLE ANTENNA COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在多个天线通信系统中进行短距离训练的前期训练的方法和装置
公开(公告)号：WO2006086493A1
公开(公告)日：2006-08-17
申请号：PCT/US2006/004467
申请日：2006-02-08
申请人： AGERE SYSTEMS INC. , MUJTABA, Syed, Aon
发明人： MUJTABA, Syed, Aon
IPC分类号： H04L27/26
CPC分类号： H04B7/0684 , H04L27/261
摘要： Methods and apparatus are provided for communicating data in a multiple antenna communication system having N transmit antennas. According to one aspect of the invention, a disclosed header format includes a legacy preamble having at least one legacy long training field and an extended portion having at least N additional long training fields on each of the N transmit antennas, wherein one or more of said at least N additional long training fields are comprised of only one OFDM symbol. The extended portion optionally comprises one or more repeated OFDM symbols for frequency offset estimation. In one implementation, the extended portion comprises a first high throughput long training field comprised of two repeated OFDM symbols and N-I high throughput long training fields comprised of only one OFDM symbol. In another variation, the extended portion comprises N high throughput long training fields comprised of only one OFDM symbol.
摘要翻译：提供了用于在具有N个发射天线的多天线通信系统中传送数据的方法和装置。根据本发明的一个方面，公开的报头格式包括具有至少一个传统长训练场的传统前同步码和在N个发射天线中的每一个上具有至少N个附加长训练场的扩展部分，其中所述至少N个附加的长训练场仅由一个OFDM符号构成。扩展部分可选地包括用于频率偏移估计的一个或多个重复的OFDM符号。在一个实现中，扩展部分包括由两个重复的OFDM符号和仅由一个OFDM符号组成的N-1个高吞吐量长的训练场组成的第一高吞吐量长训练场。在另一变型中，扩展部分包括仅由一个OFDM符号组成的N个高吞吐量长的训练场。

7. 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。

8. 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。

9. 发明申请

WO2007111632A1 METHOD AND APPARATUS FOR IMPROVED ANTENNA ISOLATION FOR PER-ANTENNA TRAINING USING VARIABLE SCALING 审中-公开
标题翻译：改进天线分离的方法和装置，使用可变尺度进行天线训练
公开(公告)号：WO2007111632A1
公开(公告)日：2007-10-04
申请号：PCT/US2006/029559
申请日：2006-07-31
申请人： AGERE SYSTEMS INC. , CAMPBELL, Edward, E. , MUJTABA, Syed, A.
发明人： CAMPBELL, Edward, E. , MUJTABA, Syed, A.
IPC分类号： H04B7/04
CPC分类号： H04L25/022 , H04B7/04 , H04B7/0602 , H04B7/0615 , H04B7/0684 , H04L25/0224
摘要： Methods and apparatus are provided for per-antenna training in a multiple antenna communication system having a plurality of transmit antenna branches. A long training sequence is transmitted on each of the transmit antenna branches such that only one of the transmit antenna branches is active at a given time. The active transmit antenna branch transmits the long training sequence with an increased power level relative to a transmission of a payload by the active transmit antenna branch. The increased power level for the active transmit antenna branch compensates for the inactive transmit antenna branches being silent during the given time. Thus, the active transmit antenna branch provides approximately the same antenna power while transmitting the long training sequence as a total power of the plurality of transmit antenna branches during a transmission of the payload. The increased power level can be provided, for example, by a digital-to-analog converter associated with the active transmit antenna branch.
摘要翻译：在具有多个发射天线分支的多天线通信系统中提供用于每天线训练的方法和装置。在每个发射天线分支上发送长训练序列，使得在给定时间只有一个发射天线分支是活动的。有源发射天线分支相对于有源发射天线分支的有效载荷的传输具有增加的功率电平来传输长训练序列。有源发射天线支路的增加的功率电平补偿在给定时间内无效的发射天线分支是无声的。因此，有源发射天线分支提供大致相同的天线功率，同时在有效载荷的传输期间发送长训练序列作为多个发射天线分支的总功率。增加的功率电平可以例如由与有源发射天线分支相关联的数模转换器提供。

10. 发明申请

WO2007111631A1 METHOD AND APPARATUS FOR IMPROVED ANTENNA ISOLATION FOR PER-ANTENNA TRAINING USING TRANSMIT/RECEIVE SWITCH 审中-公开
标题翻译：使用发射/接收开关进行天线训练改进天线隔离的方法和装置
公开(公告)号：WO2007111631A1
公开(公告)日：2007-10-04
申请号：PCT/US2006/029557
申请日：2006-07-31
申请人： AGERE SYSTEMS INC. , CAMPBELL, Edward, E. , MUJTABA, Syed, A.
发明人： CAMPBELL, Edward, E. , MUJTABA, Syed, A.
IPC分类号： H04B7/04
CPC分类号： H04B7/0684 , H04B7/04 , H04B7/0615 , H04B7/08 , H04L25/0204 , H04L25/0224 , H04L27/261
摘要： Methods and apparatus are provided for per-antenna training in a multiple antenna communication system having a plurality of transmit antenna branches. A long training sequence is transmitted on each of the transmit antenna branches such that only one of the transmit antenna branches is active at a given time. The active transmit antenna branch is configured in a transmit mode during the given time and one or more of the inactive transmit antenna branches are configured in a receive mode during the given time. The transmit and receive modes are configured, for example, by applying a control signal to one or more switches.
摘要翻译：在具有多个发射天线分支的多天线通信系统中提供用于每天线训练的方法和装置。在每个发射天线分支上发送长训练序列，使得在给定时间只有一个发射天线分支是活动的。在给定时间期间，有源发射天线分支被配置为发射模式，并且在给定时间内将一个或多个非活动发射天线分支配置为接收模式。发送和接收模式例如通过将控制信号施加到一个或多个开关来配置。

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