公开(公告)号：WO2010039586A3

公开(公告)日：2010-05-27

申请号：PCT/US2009058269

申请日：2009-09-24

Applicant: QUALCOMM INC ,  SAINTS KEITH W ,  GAAL PETER ,  LEUNG GILBERT

Inventor： SAINTS KEITH W ,  GAAL PETER ,  LEUNG GILBERT

IPC: H04L25/03

CPC classification number: H04L25/0328 ,  H04L25/03044

Abstract: An apparatus for reducing interference of a signal over a plurality of stages includes a processor configured to determine at least two equalizer taps based on at least one of a covariance and a channel impulse response of the signal. The processor is further configured to estimate at least one additional equalizer tap based on the at least two equalizer taps. In addition, the processor is configured to reduce, for each of the plurality of stages, the interference of the signal for that stage using an equalizer tap from either the at least two equalizer taps or the at least one additional equalizer tap, so that the signal for the next stage in the plurality of stages has the reduced interference. A method is also provided for reducing interference of a signal over a plurality of stages.

Abstract translation: 一种用于减少多个级上的信号的干扰的设备包括处理器，该处理器被配置为基于信号的协方差和信道脉冲响应中的至少一个来确定至少两个均衡器抽头。 处理器还被配置为基于至少两个均衡器抽头来估计至少一个附加均衡器抽头。 此外，处理器被配置为使用来自至少两个均衡器抽头或至少一个附加均衡器抽头的均衡器抽头来减少对于多个​​级中的每个级的该级的信号的干扰，使得 用于多个级中的下一级的信号具有减小的干扰。 还提供了一种用于减少信号在多个级上的干扰的方法。

公开(公告)号：WO0070902A9

公开(公告)日：2002-04-11

申请号：PCT/US0012778

申请日：2000-05-09

Applicant: QUALCOMM INC

Inventor： LING FUNYUN ,  HOLTZMAN JACK ,  WHEATLEY CHARLES E III ,  CHEN TAO ,  TIEDEMANN EDWARD G JR ,  LEUNG GILBERT

IPC: H04B7/005 ,  H04B7/26 ,  H04W36/08 ,  H04W52/22 ,  H04W52/40 ,  H04W52/42 ,  H04Q7/38

CPC classification number: H04W52/225 ,  H04W36/0094 ,  H04W52/40 ,  H04W52/42

Abstract: A method and apparatus for efficient candidate frequency search while initiating a handoff in a code division multiple access communication system. The method includes when the pilot signal is transmitted by the mobile station that is power controlled to a target receive level, the traffic channel power level is increased relative to the pilot channel to improve receiver performance. An improved feature is that the received pilot received at the base station stays the same while the receiver receives extra energy in the redundant traffic symbols received to enhance the probability of correctly decoding the received frame. The base station detects the absence of the mobile station transmitted signal from the frequency of interest. If the base station is aware of the starting time and duration of the absence, it can focus its detection during this predetermined time period. The performance can be improved if the absence of the signal is spread across two frames at the frame boundary.

Abstract translation: 一种用于在码分多址通信系统中发起切换的有效候选频率​​搜索的方法和装置。 该方法包括当导频信号由被功率控制到目标接收电平的移动台发送时，业务信道功率电平相对于导频信道增加，以提高接收机性能。 改进的特征是在基站处接收到的接收到的导频保持相同，而接收机在接收到的冗余业务符号中接收到额外的能量以增强正确解码接收帧的概率。 基站从感兴趣的频率检测到不存在移动台发送的信号。 如果基站知道不存在的起始时间和持续时间，则可以在该预定时间段内集中其检测。 如果没有信号在帧边界的两个帧上扩展，则可以提高性能。

公开(公告)号：WO2009039473A3

公开(公告)日：2009-05-07

申请号：PCT/US2008077177

申请日：2008-09-22

Applicant: QUALCOMM INC ,  LEUNG GILBERT

Inventor： LEUNG GILBERT

IPC: H04L12/28

CPC classification number: H04W72/082 ,  H04W74/08

Abstract: Techniques for mitigating interference on the reverse link in a wireless communication system are described. Terminals interfering with one another and communicating with different sectors on the reverse link may be identified. The terminals may be scheduled in time intervals selected to mitigate interference. For example, each terminal may be scheduled on at least one pseudo-randomly selected time interval, on a pseudo-randomly selected interlace that includes evenly spaced time intervals, on a different set of at least one time interval, on a different interlace, etc. A terminal may receive an assignment of at least one time interval for transmission on the reverse link to a serving sector. The at least one time interval may be selected to mitigate interference to terminals in neighbor sectors.

Abstract translation: 描述了用于减轻无线通信系统中的反向链路上的干扰的技术。 可以识别在相反链路上互相干扰并与不同扇区进行通信的终端。 终端可以在选择用于减轻干扰的时间间隔中进行调度。 例如，可以在至少一个伪随机选择的时间间隔上，在包括均匀间隔的时间间隔的伪随机选择的交错上，在不同的至少一个时间间隔的集合上，不同的交错等上调度每个终端 终端可以接收用于在反向链路上向服务扇区传输的至少一个时间间隔的分配。 可以选择至少一个时间间隔来减轻对邻近扇区中的终端的干扰。