公开(公告)号：WO2007095474A2

公开(公告)日：2007-08-23

申请号：PCT/US2007061948

申请日：2007-02-09

Applicant: QUALCOMM INC ,  COOPER ROTEM ,  SALAMAN GLENN ,  HUTCHISON JAMES A ,  HUGHES ROBBIN D ,  ARAVAMUDHAN VANITHA

Inventor： COOPER ROTEM ,  SALAMAN GLENN ,  HUTCHISON JAMES A ,  HUGHES ROBBIN D ,  ARAVAMUDHAN VANITHA

IPC: H04W48/16 ,  H04W48/20

CPC classification number: H04W48/16 ,  H04W48/20

Abstract: One aspect of the invention provides a system, apparatus and method that allow a wireless communication device to intelligently search for and select a communication cell based on a system identifier (SID) and network identifier (NID) order of preference rather than just pilot signal strength. Generally, a mobile device scans a frequency channel associated with the highest preferred SID/NID for pilot signals at different PN offsets. The cell associated with the strongest pilot signal detected is queried to determine whether it belongs to the SID/NID sought. If the selected PN offset belongs to a cell associated with the SID/NID sought then it is used for communications. Otherwise, the SID/NID identification process is repeated for the next strongest PN offset detected on the same frequency channel. If no pilot signals meeting these criteria are found in the frequency channel, the next highest preferred SID/NID is selected and the process is repeated.

Abstract translation: 本发明的一个方面提供一种系统，装置和方法，其允许无线通信设备基于系统标识符（SID）和网络标识符（NID）优先级顺序智能地搜索和选择通信小区，而不仅仅是导频信号强度 。 通常，移动设备扫描与最高优选SID / NID相关联的频率信道用于不同PN偏移处的导频信号。 查询与检测到的最强导频信号相关联的小区，以确定它是否属于所寻求的SID / NID。 如果选择的PN偏移属于与所寻求的SID / NID相关联的小区，则它被用于通信。 否则，对同一频道上检测到的下一个最强的PN偏移重复SID / NID识别过程。 如果在频道中没有找到符合这些标准的导频信号，则选择下一个较高的优选SID / NID，并重复该过程。

公开(公告)号：WO2007095474A3

公开(公告)日：2007-08-23

申请号：PCT/US2007/061948

申请日：2007-02-09

Applicant: QUALCOMM Incorporated ,  COOPER, Rotem ,  SALAMAN, Glenn ,  HUTCHISON, James A. ,  HUGHES, Robbin D. ,  ARAVAMUDHAN, Vanitha

Inventor： COOPER, Rotem ,  SALAMAN, Glenn ,  HUTCHISON, James A. ,  HUGHES, Robbin D. ,  ARAVAMUDHAN, Vanitha

IPC: H04Q7/38

Abstract: One aspect of the invention provides a system, apparatus and method that allow a wireless communication device to intelligently search for and select a communication cell based on a system identifier (SID) and network identifier (NID) order of preference rather than just pilot signal strength. Generally, a mobile device scans a frequency channel associated with the highest preferred SID/NID for pilot signals at different PN offsets. The cell associated with the strongest pilot signal detected is queried to determine whether it belongs to the SID/NID sought. If the selected PN offset belongs to a cell associated with the SID/NID sought then it is used for communications. Otherwise, the SID/NID identification process is repeated for the next strongest PN offset detected on the same frequency channel. If no pilot signals meeting these criteria are found in the frequency channel, the next highest preferred SID/NID is selected and the process is repeated.

公开(公告)号：WO2006102637A1

公开(公告)日：2006-09-28

申请号：PCT/US2006/010955

申请日：2006-03-24

Applicant: QUALCOMM INCORPORATED ,  HUTCHISON, James, A. ,  HANG, Ling ,  HUGHES, Robbin, D.

Inventor： HUTCHISON, James, A. ,  HANG, Ling ,  HUGHES, Robbin, D.

IPC: H04B1/707

CPC classification number: H04B1/7075

Abstract: CDMA code channels are acquired using a crystal oscillator that is not temperature compensated and that generates a tuning signal with relatively large frequency error (e.g., +/-5 ppm). Channel acquisition is first attempted at no offset from a start frequency that is obtained by fitting an ideal temperature/frequency error curve to available actual data points. Following unsuccessful pilot acquisition, the offset frequency is stepped in a "spiral" manner, and pilot acquisition is retried. When the pilot and synchronization channels are successfully acquired, but the system identification is unexpected, an adjacent channel image has been acquired, and the offset frequency is bumped by a large step (e.g., 15 kHz). Pilot acquisition is retried using spiral stepping. The crystal oscillator is calibrated after each successful acquisition of the pilot, synchronization and paging channels by retaining a data point in a frequency adjustment table for the temperature at which frequency acquisition was successful.

Abstract translation: 使用不进行温度补偿的晶体振荡器并且产生具有相对大的频率误差（例如，+/- 5ppm）的调谐信号来获取CDMA码信道。 首先尝试通道采集，与通过将理想温度/频率误差曲线拟合到可用的实际数据点获得的起始频率无偏差。 在不成功的飞行员获取后，偏移频率以“螺旋”的方式进行，并重试飞行员采集。 当成功获取导频和同步信道，但系统识别是意想不到的时，已经获取了相邻信道图像，并且偏移频率被大步（例如，15kHz）冲撞。 使用螺旋踏步重试飞行员采集。 在通过在频率获取成功的温度的频率调整表中保留数据点，在每次成功获取导频，同步和寻呼信道之后校准晶体振荡器。