System and method for controlling downlink packet latency
    22.
    发明授权
    System and method for controlling downlink packet latency 失效
    用于控制下行链路分组延迟的系统和方法

    公开(公告)号:US08780740B2

    公开(公告)日:2014-07-15

    申请号:US12774874

    申请日:2010-05-06

    IPC分类号: H04L12/26

    摘要: A method, an apparatus, and a computer program product for wireless communication are provided in which VoIP traffic is scheduled in a way that focuses on controlling user latencies, by reshaping packet latency profiles of individual users to more efficiently utilize power/code resources. A feedback mechanism may utilize certain latency controllers to adjust a queuing delay and an over-the-air transmit time to meet latency targets. That is, system resources may be allocated in a wireless network by adjusting a latency target for a packet responsive to a user's packet latency history.

    摘要翻译: 提供了一种用于无线通信的方法,装置和计算机程序产品,通过重新组合个体用户的分组等待时间概况以更有效地利用功率/代码资源,VoIP流量以专注于控制用户延迟的方式进行调度。 反馈机制可以利用某些等待时间控制器来调整排队延迟和空中传输时间以满足延迟目标。 也就是说,可以通过根据用户的分组等待时间历史调整分组的等待时间目标来在无线网络中分配系统资源。

    Methods and apparatus for adjusting forward link signal to interference and noise ratio estimates
    23.
    发明授权
    Methods and apparatus for adjusting forward link signal to interference and noise ratio estimates 失效
    用于调整前向链路信号与干扰和噪声比估计的方法和装置

    公开(公告)号:US08537875B2

    公开(公告)日:2013-09-17

    申请号:US13086564

    申请日:2011-04-14

    IPC分类号: H04B1/00

    摘要: Methods and systems for adjusting a forward link (FL) signal to interference and noise ratio (SINR) are provided. In an example, a FL SINR is estimated for each user in a plurality of users, on at least one of each user's respective data rate control (DRC) message or each user's respective prior FL SINR value. The respective estimated FL SINR for a user in the plurality of users is increased, if, based on a reverse link acknowledge message, the user has decoded a packet before all symbols in the packet have been transmitted. Remaining control channel power is determined. The estimated FL SINR for all users in the plurality of users is increased if remaining control channel power is less than a low threshold. The estimated FL SINR for all users in the plurality of users is increased if the remaining control channel power is greater than a high threshold.

    摘要翻译: 提供了用于调整前向链路(FL)信号与干扰和噪声比(SINR)的方法和系统。 在一个示例中,在每个用户的相应数据速率控制(DRC)消息或每个用户相应的先前FL SINR值中的至少一个上,针对多个用户中的每个用户估计FL SINR。 如果基于反向链路确认消息,则用户已经在分组中的所有符号已经被发送之前解码了分组,则增加了用于多个用户中的用户的相应估计的FL SINR。 确定剩余控制通道功率。 如果剩余控制信道功率小于低阈值,则在多个用户中的所有用户的估计的FL SINR增加。 如果剩余的控制信道功率大于高阈值,则对于多个用户中的所有用户的估计的FL SINR增加。

    Iterative interference cancellation system and method
    26.
    发明授权
    Iterative interference cancellation system and method 有权
    迭代干扰消除系统及方法

    公开(公告)号:US08472877B2

    公开(公告)日:2013-06-25

    申请号:US11407570

    申请日:2006-04-19

    IPC分类号: H04B1/00 H04B15/00

    摘要: A system and method for Interference Cancellation (IC). One aspect relates to iterative interference cancellation with iterative finger delay adaptation. The interference cancellation method comprises receiving multi-paths of a signal; and performing iterative interference cancellation to remove multi-path interference, wherein the performing iterative IC comprises estimating a Signal-to-Interference-plus-Noise Ratio (SINR) at each of a plurality of pre-determined rake receiver finger delays, and performing successive Channel Estimation (CE) and IC on rake receiver fingers according to their estimated SINRs, and wherein the CE of a next finger does not start until interference of a previous finger is removed from a sample buffer. The method may further comprise improving estimated rake receiver finger delay, and each iteration decreases the amount of interference observed by each finger.

    摘要翻译: 一种用于干扰消除(IC)的系统和方法。 一个方面涉及具有迭代手指延迟适应的迭代干扰消除。 干扰消除方法包括:接收信号的多路径; 以及执行迭代干扰消除以去除多路径干扰,其中所述执行迭代IC包括在多个预定的耙机接收机手指延迟中的每一个处估计信号与干扰加噪声比(SINR),并且执行连续 根据其估计的SINR,在瑞克接收机手指上的信道估计(CE)和IC,并且其中下一个手指的CE不开始,直到先前手指的干扰从样本缓冲器中移除。 该方法还可以包括改进估计的瑞克接收机手指延迟,并且每次迭代减少每个手指观察到的干扰量。

    Sending an uplink order to active set base stations
    27.
    发明授权
    Sending an uplink order to active set base stations 有权
    向有源设置的基站发送上行链路命令

    公开(公告)号:US08345617B2

    公开(公告)日:2013-01-01

    申请号:US12861745

    申请日:2010-08-23

    IPC分类号: H04W72/04

    摘要: A method for sending an uplink order to active set base stations is disclosed. A new mode of operation for a wireless communication device is determined. A transmission is sent on an uplink control channel to active set base stations that indicates the new mode. The transmission from the wireless communication device is received on the E-DPCCH. It is determined if the transmission is an uplink order. The new mode of operation is transitioned to. Subsequent transmissions from the wireless communication device are interpreted using the new mode of operation if the transmission is an uplink order.

    摘要翻译: 公开了一种向主动集群基站发送上行链路顺序的方法。 确定无线通信设备的新的操作模式。 在上行链路控制信道上发送指示新模式的主动集合基站。 在E-DPCCH上接收到来自无线通信设备的传输。 确定传输是否是上行链路顺序。 新的运作模式转为。 如果传输是上行链路顺序,则使用新的操作模式来解释来自无线通信设备的后续传输。

    MASTER-SLAVE ARCHITECTURE IN A CLOSED LOOP TRANSMIT DIVERSITY SCHEME
    29.
    发明申请
    MASTER-SLAVE ARCHITECTURE IN A CLOSED LOOP TRANSMIT DIVERSITY SCHEME 有权
    封闭环路发射多样性方案中的主从建筑

    公开(公告)号:US20120178501A1

    公开(公告)日:2012-07-12

    申请号:US13346610

    申请日:2012-01-09

    IPC分类号: H04W88/08

    摘要: A base station receiver, a computer program product operable at a base station, and a method operable at a base station receiver, for receiving uplink transmit diversity transmissions utilizing a master/slave scheme at the receiver. One or more tracking loops, such as a searcher task, a time tracking loop, or a frequency tracking loop may be implemented at the base station receiver to determine compensation values, such as finger timings for a rake receiver or frequency compensation values, in accordance with characteristics of a first received pilot channel transmitted utilizing a first precoding weight vector. Here, corresponding compensation values may be derived for the reception of a secondary pilot channel transmitted utilizing an precoding weight vector orthogonal to the first precoding weight vector, simply based on those determined for the first pilot channel.

    摘要翻译: 基站接收机,在基站可操作的计算机程序产品以及可在基站接收机操作的方法,用于在接收机处利用主/从方案接收上行链路发射分集传输。 可以在基站接收机处实现一个或多个跟踪环路,例如搜索器任务,时间跟踪环路或频率跟踪环路,以确定补偿值,例如用于耙式接收机的手指定时或频率补偿值 具有利用第一预编码权重向量发送的第一接收导频信道的特性。 这里,可以简单地基于对于第一导频信道确定的那些,来导出利用与第一预编码权重向量正交的预编码权重向量发送的次级导频信道的相应的补偿值。

    APPARATUS AND METHOD FOR UPLINK CLOSED LOOP TRANSMIT DIVERSITY
    30.
    发明申请
    APPARATUS AND METHOD FOR UPLINK CLOSED LOOP TRANSMIT DIVERSITY 有权
    上链封闭环路传输多样性的装置和方法

    公开(公告)号:US20120178381A1

    公开(公告)日:2012-07-12

    申请号:US13346590

    申请日:2012-01-09

    IPC分类号: H04B7/06

    摘要: An apparatus, method, and computer program product operable to determine a phase of a beamforming weight vector utilizing a memory of a previously used phase for the beamforming weight vector, capable of improving a channel estimate. A base station transmits a beamforming weight vector to a user equipment based on a determined channel estimate. The user equipment selects between the received beamforming weight vector, or a modified beamforming weight vector having its phase shifted by −360°, in accordance with a suitable selection criteria. That is, the selection is made such that a difference between the phase of the selected beamforming vector and a phase of a prior beamforming vector is within a predetermined range.

    摘要翻译: 一种装置,方法和计算机程序产品,其可操作以使用能够改善信道估计的波束成形权重向量的先前使用的相位的存储器来确定波束成形权重向量的相位。 基站基于确定的信道估计向用户设备发送波束成形权重向量。 用户设备根据合适的选择标准在所接收的波束形成权重向量或其相位偏移-360°的经修改的波束成形权重向量之间进行选择。 也就是说,进行选择使得所选择的波束形成向量的相位与先前的波束形成向量的相位之间的差在预定范围内。