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188 条记录 (耗时 0.048 秒)

    PN generators for spread spectrum communications systems
    52.
    发明授权
    PN generators for spread spectrum communications systems 有权
    用于扩频通信系统的PN发生器

    公开(公告)号：US08611310B2

    公开(公告)日：2013-12-17

    申请号：US10659831

    申请日：2003-09-10

    申请人： Peter J. Black ,  Roberto Padovani ,  Lindsay A. Weaver, Jr.

    发明人： Peter J. Black ,  Roberto Padovani ,  Lindsay A. Weaver, Jr.

    IPC分类号： H04B7/216 ,  H04B1/69

    CPC分类号： H04J13/10 ,  H03K3/84 ,  H04B1/707 ,  H04J13/0022

    摘要： Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set.

    摘要翻译： 在扩展频谱环境中改进采集过程的技术。 来自不同CDMA系统的信号用不同的PN序列集合扩展，每组中的PN序列与其他集合中的PN序列不相关。 移动台可以尝试通过用对应于所获取的特定信号的第一假设的第一组PN序列处理接收信号来获取导频信号。 如果导频信号的获取失败，则选择对应于第二假设的第二组PN序列来处理接收到的信号。 第二组中的PN序列与第一组中的PN序列不相关。

    Method and system for wireless coverage redundancy
    56.
    发明授权
    Method and system for wireless coverage redundancy 有权
    无线覆盖冗余的方法和系统

    公开(公告)号：US08494593B2

    公开(公告)日：2013-07-23

    申请号：US12359068

    申请日：2009-01-23

    申请人： Peter J. Black ,  Matthew S. Grob

    发明人： Peter J. Black ,  Matthew S. Grob

    IPC分类号： H04W52/00

    CPC分类号： H04W52/18 ,  H04W24/04 ,  H04W88/08 ,  H04W92/12

    摘要： Devices and methods are provided for providing wireless coverage redundancy in case, for example, the backhaul of an access point (AP) base station is not available. In one embodiment, the method involves monitoring the backhaul, and in response to the backhaul being available, facilitating communication between an access terminal (AT) and the macro network via the backhaul. In addition, or in the alternative (e.g., when the backhaul is not available), a communication signal between the AT and a macro base station (or another AP base station) may be boosted.

    摘要翻译： 提供了用于在例如接入点（AP）基站的回程不可用的情况下提供无线覆盖冗余的设备和方法。 在一个实施例中，该方法涉及监视回程，并且响应于回程可用，便于经由回程的接入终端（AT）和宏网络之间的通信。 另外或替代方案（例如，当回程不可用时），AT和宏基站（或另一个AP基站）之间的通信信号可以被提升。

    Methods and systems for variable rate broadcast with soft handoff
    59.
    发明授权
    Methods and systems for variable rate broadcast with soft handoff 有权
    具有软切换的可变速率广播的方法和系统

    公开(公告)号：US08111663B2

    公开(公告)日：2012-02-07

    申请号：US11182232

    申请日：2005-07-15

    申请人： Peter J. Black

    发明人： Peter J. Black

    IPC分类号： H04W4/00 ,  H04W36/00 ,  H04B7/216

    CPC分类号： H04W72/005 ,  H04W36/18

    摘要： Embodiments described herein relate to providing variable rate broadcast services with soft handoff in wireless communications. In an embodiment, a plurality of access points (e.g., servicing various cells in a broadcast area) may transmit a broadcast content in accordance with a rate set. The rate set may include a plurality of distinct data rates each associated with a transmission format, configured to allow the broadcast packets transmitted by the access points to be incrementally combined (e.g., on a per-slot basis at a subscribing AT). The data rates and corresponding transmission formats in the rate set may be selected in relation to the supportable data rates of the cells in the broadcast area, as well as the requirements for supporting soft handoff in these cells.

    摘要翻译： 本文描述的实施例涉及在无线通信中提供具有软切换的可变速率广播服务。 在一个实施例中，多个接入点（例如，为广播区域中的各个小区提供服务）可以根据速率集合发送广播内容。 速率设置可以包括每个与传输格式相关联的多个不同的数据速率，其被配置为允许由接入点发送的广播分组被增量地组合（例如，在订阅的AT以每个时隙为基础）。 可以相对于广播区域中的小区的可支持数据速率以及在这些小区中支持软切换的要求来选择速率集合中的数据速率和相应的传输格式。

    Media (voice) playback (de-jitter) buffer adjustments based on air interface
    60.
    发明授权
    Media (voice) playback (de-jitter) buffer adjustments based on air interface 有权
    基于空中接口的媒体（语音）播放（去抖动）缓冲区调整

    公开(公告)号：US08085678B2

    公开(公告)日：2011-12-27

    申请号：US10964319

    申请日：2004-10-13

    申请人： Serafin Diaz Spindola ,  Peter J. Black

    发明人： Serafin Diaz Spindola ,  Peter J. Black

    IPC分类号： G06F11/00

    CPC分类号： H04L1/205 ,  H04J3/0632 ,  H04L29/06027 ,  H04L65/80 ,  H04W28/14 ,  H04W36/00

    摘要： Systems and methods for adapting a de-jitter buffer to conform to air link conditions. An air link characteristic may be detected before that characteristic begins to affect packet delivery, such as by slowing or speeding delivery delay at a subscriber station. A receiver-side de-jitter buffer, which adds delay to received packets, may adaptively adjust its size based upon the detected air link characteristic, such that the de-jitter buffer is appropriately sized for anticipated data packets before they are received at the subscriber station.

    摘要翻译： 用于使去抖动缓冲器适应于空中链路条件的系统和方法。 可以在该特性开始影响分组传送之前检测空中链路特性，诸如通过在用户台处减慢或加速传送延迟。 对接收到的分组增加延迟的接收机侧去抖动缓冲器可以基于检测到的空中链路特性来自适应地调整其大小，使得去抖动缓冲器在用户被接收之前被适当地设置为预期的数据分组 站。