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    • 2. 发明授权
    • Method and apparatus for cell reselection
    • 用于细胞重选的方法和装置
    • US08838106B2
    • 2014-09-16
    • US12769473
    • 2010-04-28
    • Venkatasubramanian RamasamyGiri Prassad DeivasigamaniSrinivasan Vasudevan
    • Venkatasubramanian RamasamyGiri Prassad DeivasigamaniSrinivasan Vasudevan
    • H04W36/00H04W48/20H04W4/00H04W40/00H04W72/00
    • H04W36/0061H04W48/20
    • A method of reselecting a mobile wireless communication device to a network subsystem before initiating a connection with a wireless communication network. A connection request is received by the mobile wireless communication device in response to a user input. Attributes of signals received by the mobile wireless communication device from multiple network subsystems in the wireless communication network are measured over a period of time. The mobile wireless communication device is associated with one of the network subsystems and not associated with other network subsystems. The mobile wireless communication device reselects to one of the network subsystems based on quality metrics generated from the measured received signal attributes. After reselection, the mobile wireless communication device initiates a connection through the reselected network subsystem.
    • 一种在发起与无线通信网络的连接之前将移动无线通信设备重新选择到网络子系统的方法。 响应于用户输入,移动无线通信设备接收连接请求。 在一段时间内测量移动无线通信设备从无线通信网络中的多个网络子系统接收的信号的属性。 移动无线通信设备与网络子系统之一相关联,并且不与其他网络子系统相关联。 移动无线通信设备基于从测量的接收信号属性产生的质量度量来重新选择到一个网络子系统。 重新选择后,移动无线通信设备通过重新选择的网络子系统发起连接。
    • 4. 发明授权
    • Fast cell selection in a mobile wireless device
    • 移动无线设备中的快速小区选择
    • US08301145B2
    • 2012-10-30
    • US12950691
    • 2010-11-19
    • Giri Prassad DeivasigamaniVenkatasubramanian RamasamySharad GargSrinivasan Vasudevan
    • Giri Prassad DeivasigamaniVenkatasubramanian RamasamySharad GargSrinivasan Vasudevan
    • H04W36/00
    • H04W36/08H04W24/08H04W36/30H04W36/36H04W48/20H04W64/003
    • A method and apparatus for fast cell selection by a mobile wireless device. The mobile wireless device detects when a first wireless cell fails a set of stored suitability criteria and searches for and locates a set of candidate wireless cells to associate with. The mobile wireless device measures at least one received signal metric for each candidate wireless cell in the set of candidate wireless cells. When a candidate cell in the set of candidate wireless cells is identically the first wireless cell, the mobile wireless device evaluates the suitability of the candidate wireless cell using the stored set of suitability criteria for the first wireless cell and the measured at least one received signal metric for the candidate wireless cell. The mobile wireless communication device associates with the candidate wireless cell when the candidate wireless cell meets the stored set of suitability criteria.
    • 一种移动无线设备用于快速小区选择的方法和装置。 移动无线设备检测第一无线小区何时失败一组存储的适用性标准,并搜索并定位要关联的一组候选无线小区。 移动无线设备测量候选无线小区集合中的每个候选无线小区的至少一个接收信号度量。 当候选无线小区集合中的候选小区相同地是第一无线小区时,移动无线设备使用存储的第一无线小区的适合性标准集合和所测量的至少一个接收信号来评估候选无线小区的适用性 候选无线小区的度量。 当候选无线小区满足存储的一组适用性标准时,移动无线通信设备与候选无线小区相关联。
    • 7. 发明授权
    • Method and apparatus for selective reading of system information in a mobile wireless device
    • 用于在移动无线设备中选择性读取系统信息的方法和装置
    • US08630216B2
    • 2014-01-14
    • US12895398
    • 2010-09-30
    • Giri Prassad DeivasigamaniVenkatasubramanian RamasamySharad GargSrinivasan Vasudevan
    • Giri Prassad DeivasigamaniVenkatasubramanian RamasamySharad GargSrinivasan Vasudevan
    • G08C17/00
    • H04L1/08H04L1/0053
    • A method to read selectively system information messages in a mobile wireless communication device. The mobile wireless device receives a first transmission of a multiple segment message through a radio frequency receiver. The mobile wireless device detects decoding errors in at least one of the received segments of the first transmission. In response to detecting decoding errors, the mobile wireless device selectively receives a first subset of segments in a second transmission of the multiple segment message. The mobile wireless device powers down at least a portion of the radio frequency receiver during receive time intervals for a second subset of segments in the second transmission. The first subset of segments in the second transmission corresponds to segments in the first transmission received with decoding errors. The second subset of segments in the second transmission corresponds to segments in the first transmission received without decoding errors.
    • 一种用于在移动无线通信设备中选择性地读取系统信息消息的方法。 移动无线设备通过射频接收机接收多段消息的第一传输。 移动无线设备检测第一传输的接收段中的至少一个中的解码错误。 响应于检测到解码错误,移动无线设备在多段消息的第二传输中选择性地接收段的第一子集。 移动无线设备在接收时间间隔内为第二传输中的第二子段子集降低射频接收机的至少一部分。 第二传输中段的第一子集对应于以解码错误接收的第一传输中的段。 第二传输中的段的第二子集对应于在没有解码错误的情况下接收到的第一传输中的段。
    • 8. 发明授权
    • Method and apparatus for wireless radio frequency test signal generation
    • 用于无线射频测试信号产生的方法和装置
    • US08364090B2
    • 2013-01-29
    • US12761092
    • 2010-04-15
    • Venkatasubramanian RamasamySrinivasan Vasudevan
    • Venkatasubramanian RamasamySrinivasan Vasudevan
    • H04B17/00
    • H04W24/08
    • Generating a radio frequency test signal for a mobile wireless communication device from a set of scanned radio frequency data that represents a plurality of radio frequency channels over a sequence of time intervals. A segment of the set of scanned radio frequency data over a time interval is classified into one of several radio frequency environments. A subset of the segment of scanned radio frequency data is selected based on the classified radio frequency environment. A segment of the radio frequency test signal is generated using the selected subset of scanned radio frequency data. The steps of classifying, selecting and generating are repeated for each time interval in the sequence of time intervals. Classifying the segment of scanned radio frequency data into a radio frequency environment includes comparing a set of statistics extracted from the segment of scanned radio frequency data to pre-defined classification ranges.
    • 从一组扫描的射频数据生成用于移动无线通信设备的射频测试信号,所述扫描的射频数据在时间间隔的序列上表示多个射频信道。 经过一段时间间隔的一组扫描的射频数据被分类成几个射频环境之一。 基于分类的无线电频率环境选择扫描射频数据段的子集。 使用所选择的扫描射频数据子集来生成射频测试信号的一部分。 按照时间间隔的顺序对每个时间间隔重复分类,选择和生成步骤。 将扫描的射频数据的段划分为无线电频率环境包括将从扫描的射频数据的段提取的一组统计信息与预定义的分类范围进行比较。
    • 9. 发明申请
    • Efficient cell measurements during transmission gaps in a compressed mode
    • 在压缩模式下的传输间隙期间高效的单元测量
    • US20070037601A1
    • 2007-02-15
    • US11367499
    • 2006-03-02
    • Mukesh MittalMohit NarangSrinivasan Vasudevan
    • Mukesh MittalMohit NarangSrinivasan Vasudevan
    • H04B7/00H04Q7/20
    • H04W24/10H04W36/00H04W36/0088
    • 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.
    • 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。