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21. 发明申请

US20090141837A1 METHODS AND APPARATUS FOR RESOVLING FREQUENCY ERRORS DURING TRANSISTION BETWEEN COMMUNICATION NETWORKS 有权
标题翻译：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。

22. 发明授权

US08428637B2 Extending access terminal battery life through search rate control 有权
标题翻译：通过搜索速率控制延长接入终端电池的使用寿命
公开(公告)号：US08428637B2
公开(公告)日：2013-04-23
申请号：US12170365
申请日：2008-07-09
申请人： Mohit Narang , Christopher Brunner , Srinivasan Vasudevan
发明人： Mohit Narang , Christopher Brunner , Srinivasan Vasudevan
IPC分类号： H04B17/00 , H04B1/00 , H04B1/04 , H04B7/00
CPC分类号： H04W48/16 , H04W52/0258 , H04W88/06 , Y02D70/1224 , Y02D70/1242 , Y02D70/142 , Y02D70/166
摘要： The method and apparatus as described are directed toward techniques and mechanisms to improve access terminal battery life through search rate control. Controlling the rate at which access terminals search for alternate networks in a cell, and more particularly reducing unnecessary attempts, significantly increases the battery life of the access terminal.
摘要翻译：所描述的方法和装置涉及通过搜索速率控制来改善接入终端电池寿命的技术和机制。控制接入终端搜索小区中替代网络的速率，并且更具体地减少不必要的尝试，显着增加接入终端的电池寿命。

23. 发明授权

US07649869B2 Efficient cell measurements during transmission gaps in a compressed mode 有权
标题翻译：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：US07649869B2
公开(公告)日：2010-01-19
申请号：US11367499
申请日：2006-03-02
申请人： Mukesh K. Mittal , Mohit Narang , Srinivasan Vasudevan
发明人： Mukesh K. Mittal , Mohit Narang , Srinivasan Vasudevan
IPC分类号： H04W4/00
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。

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