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    Methods and apparatus for resovling frequency errors during transistion between communication networks
    1.
    发明授权
    Methods and apparatus for resovling frequency errors during transistion between communication networks 有权
    通信网络间转换频率误差的方法和装置

    公开(公告)号：US07925261B2

    公开(公告)日：2011-04-12

    申请号：US11948246

    申请日：2007-11-30

    申请人： Srinivasan Vasudevan ,  Arunava Chaudhuri ,  Mohit Narang

    发明人： Srinivasan Vasudevan ,  Arunava Chaudhuri ,  Mohit Narang

    IPC分类号： H04W4/00

    CPC分类号： H04L27/22 ,  H04L2027/0028 ,  H04L2027/0065

    摘要： Methods and apparatus for resolving frequency errors in a wireless device transitioning from a first communication network to a second communication network are disclosed. The methods and apparatus effect reception of a first and second channels from the second communication network where the first channel has known characteristics. The first channel is then decoding for a prescribed period and an initial frequency error value is determined based on the decoding of the first channel. A digital frequency rotator is then adjusted based on the initial frequency error value for purposes of decoding the second channel. The second channel is then decoded using the digital frequency rotator as adjusted based on the initial frequency error value, without further calculation of the frequency error.

    摘要翻译： 公开了用于解决从第一通信网络转移到第二通信网络的无线设备中的频率误差的方法和装置。 所述方法和装置效果地从所述第二通信网络接收第一和第二信道，其中所述第一信道具有已知特征。 然后，第一通道解码规定的时间段，并且基于第一通道的解码来确定初始频率误差值。 然后基于初始频率误差值来调整数字频率旋转器，以便对第二通道进行解码。 然后使用基于初始频率误差值调整的数字频率旋转器来解码第二通道，而不进一步计算频率误差。

    METHODS AND APPARATUS FOR RESOVLING FREQUENCY ERRORS DURING TRANSISTION BETWEEN COMMUNICATION NETWORKS
    2.
    发明申请
    METHODS AND APPARATUS FOR RESOVLING FREQUENCY ERRORS DURING TRANSISTION BETWEEN COMMUNICATION NETWORKS 有权
    在通信网络之间的转换期间解决频率误差的方法和装置

    公开(公告)号：US20090141837A1

    公开(公告)日：2009-06-04

    申请号：US11948246

    申请日：2007-11-30

    申请人： Srinivasan Vasudevan ,  Arunava Chaudhuri ,  Mohit Narang

    发明人： Srinivasan Vasudevan ,  Arunava Chaudhuri ,  Mohit Narang

    IPC分类号： H04L27/06

    CPC分类号： H04L27/22 ,  H04L2027/0028 ,  H04L2027/0065

    摘要： Methods and apparatus for resolving frequency errors in a wireless device transitioning from a first communication network to a second communication network are disclosed. The methods and apparatus effect reception of a first and second channels from the second communication network where the first channel has known characteristics. The first channel is then decoding for a prescribed period and an initial frequency error value is determined based on the decoding of the first channel. A digital frequency rotator is then adjusted based on the initial frequency error value for purposes of decoding the second channel. The second channel is then decoded using the digital frequency rotator as adjusted based on the initial frequency error value, without further calculation of the frequency error.

    摘要翻译： 公开了用于解决从第一通信网络转移到第二通信网络的无线设备中的频率误差的方法和装置。 所述方法和装置效果地从所述第二通信网络接收第一和第二信道，其中所述第一信道具有已知特征。 然后，第一通道解码规定的时间段，并且基于第一通道的解码来确定初始频率误差值。 然后基于初始频率误差值来调整数字频率旋转器，以便对第二通道进行解码。 然后使用基于初始频率误差值调整的数字频率旋转器来解码第二通道，而不进一步计算频率误差。

    Methods for selecting cells in cellular telephone systems
    3.
    发明授权
    Methods for selecting cells in cellular telephone systems 有权
    在蜂窝电话系统中选择小区的方法

    公开(公告)号：US08706110B2

    公开(公告)日：2014-04-22

    申请号：US12703719

    申请日：2010-02-10

    申请人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing

    发明人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing

    IPC分类号： H04W4/00

    CPC分类号： H04W48/16

    摘要： User equipment such as cellular telephones and other wireless electronic devices may communicate wirelessly with 2G and 3G cells in a cellular network. The cellular network may broadcast a list of primary scrambling codes corresponding to 3G cell sites that are potentially available for wirelessly communicating with the user equipment. The user equipment may perform an evaluation of primary scrambling code pilot signal strengths for each of the primary scrambling codes in the list. The user equipment may also maintain a record whenever a more extensive full primary scrambling code scan fails. If the evaluation reveals that at least one signal strength is sufficient, the cellular telephone may establish a corresponding 3G wireless link. If the evaluation does not identify any sufficiently strong 3G cells, a full pilot signal scan may be performed, provided that no full scans have failed within a predetermined time interval before the current time.

    摘要翻译： 诸如蜂窝电话和其他无线电子设备的用户设备可以与蜂窝网络中的2G和3G小区进行无线通信。 蜂窝网络可以广播与潜在可用于与用户设备无线通信的3G小区站点对应的主扰码的列表。 用户设备可以对列表中的每个主扰码执行主扰码导频信号强度的评估。 每当更广泛的全主要扰码代码扫描失败时，用户设备也可以保持记录。 如果评估显示至少一个信号强度足够，则蜂窝电话可以建立相应的3G无线链路。 如果评估没有识别足够强的3G小区，则可以执行全导频信号扫描，只要在当前时间之前的预定时间间隔内没有完全扫描已经失败。

    METHODS FOR SELECTING CELLS IN CELLULAR TELEPHONE SYSTEMS
    4.
    发明申请
    METHODS FOR SELECTING CELLS IN CELLULAR TELEPHONE SYSTEMS 有权
    在细胞电话系统中选择细胞的方法

    公开(公告)号：US20110195713A1

    公开(公告)日：2011-08-11

    申请号：US12703719

    申请日：2010-02-10

    申请人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing

    发明人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing

    IPC分类号： H04W4/00 ,  H04M1/00

    CPC分类号： H04W48/16

    摘要： User equipment such as cellular telephones and other wireless electronic devices may communicate wirelessly with 2G and 3G cells in a cellular network. The cellular network may broadcast a list of primary scrambling codes corresponding to 3G cell sites that are potentially available for wirelessly communicating with the user equipment. The user equipment may perform an evaluation of primary scrambling code pilot signal strengths for each of the primary scrambling codes in the list. The user equipment may also maintain a record whenever a more extensive full primary scrambling code scan fails. If the evaluation reveals that at least one signal strength is sufficient, the cellular telephone may establish a corresponding 3G wireless link. If the evaluation does not identify any sufficiently strong 3G cells, a full pilot signal scan may be performed, provided that no full scans have failed within a predetermined time interval before the current time.

    摘要翻译： 诸如蜂窝电话和其他无线电子设备的用户设备可以与蜂窝网络中的2G和3G小区进行无线通信。 蜂窝网络可以广播与潜在可用于与用户设备无线通信的3G小区站点对应的主扰码的列表。 用户设备可以对列表中的每个主扰码执行主扰码导频信号强度的评估。 每当更广泛的全主要扰码代码扫描失败时，用户设备也可以保持记录。 如果评估显示至少一个信号强度足够，则蜂窝电话可以建立相应的3G无线链路。 如果评估没有识别足够强的3G小区，则可以执行全导频信号扫描，只要在当前时间之前的预定时间间隔内没有完全扫描已经失败。

    Method and apparatus to improve the robustness of a wireless communication link
    5.
    发明授权
    Method and apparatus to improve the robustness of a wireless communication link 有权
    提高无线通信链路鲁棒性的方法和装置

    公开(公告)号：US08554259B2

    公开(公告)日：2013-10-08

    申请号：US12703652

    申请日：2010-02-10

    申请人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing ,  Johnson O. Sebeni

    发明人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing ,  Johnson O. Sebeni

    IPC分类号： H04B7/00

    CPC分类号： H04W52/146 ,  H04W52/10 ,  H04W52/22 ,  H04W52/241 ,  H04W52/265 ,  H04W52/283 ,  H04W52/325 ,  H04W52/346

    摘要： A method and apparatus to improve the robustness of a wireless communication link between a base station and a mobile communication device. The method increases power selectively on portions of an uplink communication signal transmitted from the mobile communication device to the base station. The method monitors a quality metric value at the mobile communication device and sets the transmit power level of the first portion of an uplink communication signal to the first power level, if the monitored quality metric value is in a first range of quality values, or sets the transmit power level of the first portion of the uplink communication signal to a second power level, if the monitored quality metric value is in a second range of quality values. The first portion of the uplink communication signal includes control signals used by a base station to maintain connection of the wireless communication link.

    摘要翻译： 一种用于改善基站和移动通信设备之间的无线通信链路的鲁棒性的方法和装置。 该方法在从移动通信设备发送到基站的上行链路通信信号的部分上有选择地增加功率。 该方法监视移动通信设备处的质量度量值，并将上行链路通信信号的第一部分的发射功率电平设置为第一功率电平，如果所监视的质量度量值在质量值的第一范围内，或者设置 如果所监视的质量度量值处于质量值的第二范围，则上行链路通信信号的第一部分的发射功率电平达到第二功率电平。 上行链路通信信号的第一部分包括由基站使用以维持无线通信链路的连接的控制信号。

    METHOD AND APPARATUS TO IMPROVE THE ROBUSTNESS OF A WIRELESS COMMUNICATION LINK
    6.
    发明申请
    METHOD AND APPARATUS TO IMPROVE THE ROBUSTNESS OF A WIRELESS COMMUNICATION LINK 有权
    提高无线通信链路可靠性的方法与装置

    公开(公告)号：US20110143805A1

    公开(公告)日：2011-06-16

    申请号：US12703652

    申请日：2010-02-10

    申请人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing ,  Johnson O. Sebeni

    发明人： Venkatasubramanian Ramasamy ,  Giri Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang ,  Longda Xing ,  Johnson O. Sebeni

    IPC分类号： H04B7/00 ,  H04B17/00

    CPC分类号： H04W52/146 ,  H04W52/10 ,  H04W52/22 ,  H04W52/241 ,  H04W52/265 ,  H04W52/283 ,  H04W52/325 ,  H04W52/346

    摘要： A method and apparatus to improve the robustness of a wireless communication link between a base station and a mobile communication device. The method increases power selectively on portions of an uplink communication signal transmitted from the mobile communication device to the base station. The method monitors a quality metric value at the mobile communication device and sets the transmit power level of the first portion of an uplink communication signal to the first power level, if the monitored quality metric value is in a first range of quality values, or sets the transmit power level of the first portion of the uplink communication signal to a second power level, if the monitored quality metric value is in a second range of quality values. The first portion of the uplink communication signal includes control signals used by a base station to maintain connection of the wireless communication link.

    摘要翻译： 一种用于改善基站和移动通信设备之间的无线通信链路的鲁棒性的方法和装置。 该方法在从移动通信设备发送到基站的上行链路通信信号的部分上有选择地增加功率。 该方法监视移动通信设备处的质量度量值，并将上行链路通信信号的第一部分的发射功率电平设置为第一功率电平，如果所监视的质量度量值在质量值的第一范围内，或者设置 如果所监视的质量度量值处于质量值的第二范围，则上行链路通信信号的第一部分的发射功率电平达到第二功率电平。 上行链路通信信号的第一部分包括由基站使用以维持无线通信链路的连接的控制信号。

    Methods and apparatus for paging reception in multimode wireless networks
    8.
    发明授权
    Methods and apparatus for paging reception in multimode wireless networks 有权
    多模无线网络中寻呼接收的方法和装置

    公开(公告)号：US08630667B2

    公开(公告)日：2014-01-14

    申请号：US12643921

    申请日：2009-12-21

    申请人： Venkatasubramanian Ramasamy ,  Girl Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang

    发明人： Venkatasubramanian Ramasamy ,  Girl Prassad Deivasigamani ,  Srinivasan Vasudevan ,  Mohit Narang

    IPC分类号： H04B7/00

    CPC分类号： H04W68/02 ,  H04W68/12 ,  H04W88/06

    摘要： Methods and apparatus enabling a mobile device to receive paging notifications from multiple networks. In one embodiment of the present invention, a first device connected to a first network momentarily ignores the first network, to monitor a second network instead. The first device identifies and prioritizes a list of applications of the first network; the prioritized listing allows the first device to preempt one of its lower priority tasks to monitor the second network for paging messages instead. The described methods and apparatus enable e.g., GSM paging for Class B cellular devices which are connected to GPRS NMO-2 type networks. The Class B cellular device can ignore certain GPRS data (which is tolerant to error), to decode GSM paging channels, which would otherwise be missed.

    摘要翻译： 允许移动设备从多个网络接收寻呼通知的方法和装置。 在本发明的一个实施例中，连接到第一网络的第一设备暂时忽略第一网络，以代替监视第二网络。 第一设备识别并优先列出第一网络的应用列表; 优先级列表允许第一设备抢占其低优先级任务之一，而不是替代地监视第二网络的寻呼消息。 所描述的方法和装置能够例如连接到GPRS NMO-2型网络的B类蜂窝设备的GSM寻呼。 B类蜂窝设备可以忽略某些GPRS数据（这是容错误的），以解码GSM寻呼信道，否则会丢失。

    Efficient cell measurements during transmission gaps in a compressed mode
    9.
    发明申请
    Efficient cell measurements during transmission gaps in a compressed mode 有权
    在压缩模式下的传输间隙期间高效的单元测量

    公开(公告)号：US20070037601A1

    公开(公告)日：2007-02-15

    申请号：US11367499

    申请日：2006-03-02

    申请人： Mukesh Mittal ,  Mohit Narang ,  Srinivasan Vasudevan

    发明人： Mukesh Mittal ,  Mohit Narang ,  Srinivasan Vasudevan

    IPC分类号： H04B7/00 ,  H04Q7/20

    CPC分类号： H04W24/10 ,  H04W36/00 ,  H04W36/0088

    摘要： A terminal obtains a monitored set containing GSM neighbor cells and/or UMTS neighbor cells. The terminal operates in a compressed mode and obtains from a UMTS network at least two transmission gap pattern sequences for different measurement purposes, e.g., for “GSM carrier RSSI measurements” (GAP1), “GSM initial BSIC identification” (GAP2), and “GSM BSIC re-confirmation” (GAP3). The terminal makes RSSI measurements for the GSM cells using multiple transmission gap pattern sequences, e.g., using GAP1, GAP2 and GAP3. The terminal identifies the BSIC for at least one GSM cell by (1) detecting the tone on the FCCH using multiple transmission gap pattern sequences, e.g., using GAP2 and GAP3, and (2) decoding the SCH using multiple transmission gap pattern sequences, e.g., using GAP2 and GAP3. The use of multiple transmission gap pattern sequences for RSSI measurement and BSIC identification allows the terminal to complete the cell measurements and send a report sooner, which may improve performance.

    摘要翻译： 终端获得包含GSM相邻小区和/或UMTS相邻小区的监视集合。 终端以压缩模式操作，并且从UMTS网络获得用于不同测量目的的至少两个传输间隙模式序列，例如用于“GSM载波RSSI测量”（GAP1），“GSM初始BSIC识别”（GAP2）和“ GSM BSIC重新确认“（GAP3）。 终端使用多个传输间隙模式序列对GSM小区进行RSSI测量，例如使用GAP1，GAP2和GAP3。 终端通过以下方式识别用于至少一个GSM小区的BSIC：（1）使用多个传输间隙模式序列检测FCCH上的音调，例如使用GAP2和GAP3，以及（2）使用多个传输间隙模式序列来解码SCH，例如 ，使用GAP2和GAP3。 使用多个传输间隙模式序列进行RSSI测量和BSIC识别允许终端完成小区测量并更早发送报告，这可以提高性能。