公开(公告)号：US06922435B2

公开(公告)日：2005-07-26

申请号：US09919685

申请日：2001-07-31

Applicant: Arthur J. Neufeld ,  Ehren J. D. Van Melle ,  Eric Handojo

Inventor： Arthur J. Neufeld ,  Ehren J. D. Van Melle ,  Eric Handojo

IPC: H04J13/10 ,  H04B1/69

CPC classification number: H04B1/70754 ,  H04B1/70756 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04J13/0022 ,  H04J13/10

Abstract: Techniques to generate a pseudo-random number (PN) sequence at a desired phase using “masking” to adjust the phase of the PN sequence in coarse increments (e.g., 64-PN chip increments) to account for a large phase adjustment. Slewing may then be used to adjust the PN phase in fine increments (e.g., ⅛ PN chip increments) to obtain the desired phase. Prior to each scan for the pilot from a particular base station, a PN mask corresponding to a phase closest to the start of a new search window is applied to a PN generator to obtain an initial phase for the PN sequence. From the initial phase obtained by the applied mask, the PN generator is then slewed to the start of the search window. The masking can be used to obtain a large phase adjustment in less time, which is likely to improve search performance.

Abstract translation: 使用“掩蔽”以期望的相位生成伪随机数（PN）序列以在粗调增量（例如，64-PN码片增量）中调整PN序列的相位以考虑大相位调整的技术。 然后可以使用回转以精细增量（例如，1/8 PN码片增量）调整PN相以获得期望的相位。 在对来自特定基站的导频的每次扫描之前，将对应于最接近新搜索窗口开始的相位的PN掩码应用于PN发生器以获得PN序列的初始相位。 从通过应用的掩模获得的初始相位，然后将PN发生器转移到搜索窗口的开始处。 掩蔽可以用于在更短的时间内获得大的相位调整，这可能会提高搜索性能。

公开(公告)号：US06973310B2

公开(公告)日：2005-12-06

申请号：US10292191

申请日：2002-11-11

Applicant: Arthur J. Neufeld

Inventor： Arthur J. Neufeld

IPC: H04W36/30 ,  H04W52/02 ,  H04Q7/20

CPC classification number: H04W52/0216 ,  H04W36/30 ,  Y02D70/00

Abstract: The mobile station is in the sleep mode until just prior to a designated slot. Upon wakeup, the mobile station ensures a link is maintained with the network by measuring the strength of several pilots. If a neighbor pilot is stronger than the current pilot, a handoff is performed. After handoff, the Control Channel Capsule (CCC) may be demodulated by the mobile station to obtain new overhead information, such as neighbor pilots. If no handoff is performed, the reacquisition slew for the current pilot is measured and fed back to the sleep controller to determine the next wake-up time. The mobile station then returns to sleep mode.

Abstract translation: 移动台正在睡眠模式，直到在指定的时隙之前。 在唤醒时，移动台通过测量几个飞行员的强度来确保与网络保持链路。 如果邻近导频比当前导频更强，则执行切换。 在切换之后，控制信道胶囊（CCC）可以被移动台解调以获得新的开销信息，例如邻近导频。 如果没有执行切换，则测量当前飞行员的重新捕获转移并将其反馈到睡眠控制器以确定下一个唤醒时间。 移动台然后返回睡眠模式。

公开(公告)号：US07190962B2

公开(公告)日：2007-03-13

申请号：US10816991

申请日：2004-04-01

Applicant: Matthias Brehler ,  Arthur J. Neufeld ,  Jing Liu ,  John Charles May ,  Kurt W. Otte

Inventor： Matthias Brehler ,  Arthur J. Neufeld ,  Jing Liu ,  John Charles May ,  Kurt W. Otte

IPC: H04B7/01

CPC classification number: H04W52/0287 ,  Y02D70/00

Abstract: A method for correcting operation of the sleep oscillator (116) of a wireless communications device (100). Sleep oscillator frequency is estimated (412) so as to compensate for estimated temperature induced errors. In estimating temperature induced errors, errors (504) in sleep oscillator frequency are treated as being temperature induced errors (522), but probable multipath errors are bounded (410, 520) to predetermined sleep clock error maxima (602) corresponding to sleep duration over which the error occurred.

Abstract translation: 一种用于校正无线通信设备（100）的睡眠振荡器（116）的操作的方法。 估计睡眠振荡器频率（412），以补偿估计的温度引起的误差。 在估计温度诱导误差时，睡眠振荡器频率中的误差（504）被视为温度诱导误差（522），但是可能的多路径误差被限制（410,520）到对应于睡眠持续时间的预定睡眠时钟误差最大值（602） 发生错误。

公开(公告)号：US06993334B2

公开(公告)日：2006-01-31

申请号：US10137044

申请日：2002-04-30

Applicant: Don N. Andrus ,  Arthur J. Neufeld

Inventor： Don N. Andrus ,  Arthur J. Neufeld

IPC: H04Q7/20

CPC classification number: H04W36/30 ,  H04W8/26 ,  H04W24/10 ,  H04W36/0083 ,  H04W36/245 ,  H04W48/20 ,  H04W72/042

Abstract: Techniques for avoiding handoff to a channel impaired due to frequency dependent fading, while minimizing idle mode signaling are disclosed. In one aspect, an access terminal determines the assigned channel on an access point and caches the channel. In another aspect, the access terminal replaces a default channel associated with an access point in a cache with the assigned channel. In yet another aspect, the access terminal uses the cached channel associated with an access point when measuring channel quality of neighbor access points for use in handoff determination. In yet another aspect, the access terminal hands off to the cached channel of a neighbor access point during handoff. Various other aspects are also presented. These aspects have the benefit of factoring in frequency dependent channel characteristics when making handoff decisions, thus avoiding handoff to an access point where the assigned channel may be impaired.

公开(公告)号：US06816474B2

公开(公告)日：2004-11-09

申请号：US10366039

申请日：2003-02-13

Applicant: Inyup Kang ,  Mark D. Levin ,  Arthur J. Neufeld

Inventor： Inyup Kang ,  Mark D. Levin ,  Arthur J. Neufeld

IPC: H04B7216

CPC classification number: H04B7/2668 ,  H04B7/216

Abstract: Provided is a system and method for constructing a data message in a communications device including a processor configured to process sequentially transmitted messages. Each of the messages requires a predetermined number of data frames. The technique of the instant invention includes receiving portions of at least two of the transmitted messages in the processor. Each of the at least two received portions includes a subset of the predetermined number of data frames and excludes a remainder of the predetermined number of data frames. The subset of one of the received portions substantially matches the remainder of the other portion. Next, a determination is made as to whether a total number of the received subsets equals the predetermined number. Finally, a synthesized messaged is produced when the total number of the subsets is at least equal to the predetermined number. The synthesized message is formed of a combination of the subsets from each of the received portions.

Abstract translation: 提供了一种用于在通信设备中构建数据消息的系统和方法，该通信设备包括被配置为处理顺序发送的消息的处理器。 每个消息都需要预定数量的数据帧。 本发明的技术包括在处理器中接收至少两个发送消息的部分。 所述至少两个接收部分中的每一个包括预定数量的数据帧的子集，并且排除预定数量的数据帧的剩余部分。 接收部分之一的子集基本上与另一部分的其余部分相匹配。 接下来，确定接收到的子集的总数是否等于预定数。 最后，当子集的总数至少等于预定数量时，产生合成的消息。 合成消息由来自每个接收部分的子集的组合形成。

公开(公告)号：US06639907B2

公开(公告)日：2003-10-28

申请号：US09954667

申请日：2001-09-14

Applicant: Arthur J. Neufeld ,  Ehren Van Melle ,  De-Gang Richard Yao

Inventor： Arthur J. Neufeld ,  Ehren Van Melle ,  De-Gang Richard Yao

IPC: A04B7216

CPC classification number: H04W52/0229 ,  H04B1/70756 ,  H04B2201/70709 ,  H04W68/025 ,  Y02D70/40

Abstract: Techniques to process data sporadically transmitted at designated times in a wireless communication system, such as paging indicator (PI) bits on the quick paging channel in cdma2000. These techniques support a sleep cycle that may start at virtually anytime and having a sleep duration selected based on a fine time increment. The increment is selected such that the finger processors and symbol combiner of a rake receiver may be easily moved to the proper positions upon waking up from a sleep. Techniques are also provided to align the symbol combiner timing to that of a particular multipath in the received signal, if necessary. With these techniques, a terminal may perform a sleep between a pair of assigned PI bits and may wake up and process a single PI bit.

公开(公告)号：US06590886B1

公开(公告)日：2003-07-08

申请号：US09118750

申请日：1998-07-17

Applicant: Kenneth D. Easton ,  Arthur J. Neufeld

Inventor： Kenneth D. Easton ,  Arthur J. Neufeld

IPC: H04B7216

CPC classification number: H04W52/0216 ,  H04B1/7117 ,  H04B2201/70709 ,  Y02D70/40

Abstract: The present invention is an improved method and circuit for reducing the amount of time a mobile receiver spends in the active phase of a slot in a communications system utilizing a slotted paging mechanism. The invention allows the awake time to be configured for the minimum interval needed to demodulate the paging channel messages of interest. The invention includes a means to adjust the timing reference of the fingers to compensate for a sleep duration not an integral multiple of the PN sequence period, and a means to adjust the deinterleaver frame reference timing to compensate for a sleep duration not an integral multiple of the frame interval, and a means to initialize the frequency tracking, gain scaling, and DC bias loops, if any, of the analog receiver chain to minimize the time needed to re-lock these loops.

Abstract translation: 本发明是一种改进的方法和电路，用于减少移动接收机在利用时隙寻呼机制的通信系统中在时隙的活动阶段中花费的时间量。 本发明允许唤醒时间被配置为解调感兴趣的寻呼信道消息所需的最小间隔。 本发明包括一种用于调整手指的定时参考以补偿不是PN序列周期的整数倍的睡眠持续时间的装置，以及调整解交织器帧参考定时以补偿睡眠持续时间而不是整数倍的装置 帧间隔，以及初始化模拟接收机链的频率跟踪，增益缩放和DC偏置环路（如果有的话）的装置，以最小化重新锁定这些环路所需的时间。