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    Method and apparatus for signal combining in a high data rate communication system
    94.
    发明授权
    Method and apparatus for signal combining in a high data rate communication system 有权
    在高数据速率通信系统中信号组合的方法和装置

    公开(公告)号：US06804210B2

    公开(公告)日：2004-10-12

    申请号：US10357986

    申请日：2003-02-04

    申请人： Paul E. Bender ,  Matthew S. Grob ,  Gadi Karmi ,  Roberto Padovani

    发明人： Paul E. Bender ,  Matthew S. Grob ,  Gadi Karmi ,  Roberto Padovani

    IPC分类号： H04Q700

    CPC分类号： H04W28/22 ,  H04B7/264 ,  H04L1/0002 ,  H04W28/08 ,  H04W52/40

    摘要： Reverse link busy bits are independently generated by each base station and indicate whether a base station has reached a reverse link capacity limit. A remote station combines multipath components of the reverse link busy bits in its Active Set and in response transmits a reverse link signal only when all of the reverse link busy bits indicate that the base stations in the Active Set have reverse link capacity. In an embodiment, the remote station weights the reverse link busy signals in accordance with the signal strength of the transmitting base station and determines whether to transmit based on the weighted sum of the busy signals. In an embodiment, the remote station weights the reverse link busy signals in accordance with the signal strength of the transmitting base station and determines a maximum reverse link data rate based on the weighted sum of the busy signals.

    摘要翻译： 反向链路忙位由每个基站独立生成，并指示基站是否达到了反向链路容量限制。 远程站组合其活动集中的反向链路忙比特的多路径分量，并且响应仅在所有反向链路忙比特指示活动集中的基站具有反向链路容量时才发送反向链路信号。 在一个实施例中，远程站根据发射基站的信号强度对反向链路忙信号进行加权，并根据忙信号的加权和确定是否发送。 在一个实施例中，远程站根据发射基站的信号强度对反向链路忙信号进行加权，并且基于忙信号的加权和确定最大反向链路数据速率。

    Method for robust handoff in wireless communication system
    95.
    发明授权
    Method for robust handoff in wireless communication system 有权
    无线通信系统中鲁棒切换的方法

    公开(公告)号：US06360100B1

    公开(公告)日：2002-03-19

    申请号：US09158665

    申请日：1998-09-22

    申请人： Matthew S. Grob ,  Roberto Padovani ,  Paul E. Bender ,  Gadi Karmi ,  Robert H. Kimball ,  Greg M. Hoagland

    发明人： Matthew S. Grob ,  Roberto Padovani ,  Paul E. Bender ,  Gadi Karmi ,  Robert H. Kimball ,  Greg M. Hoagland

    IPC分类号： H04Q720

    CPC分类号： H04W36/18 ,  H04B17/318 ,  H04W36/30

    摘要： A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station is in communication with, referred to as an “Active Set”. In addition, the mobile station maintains another list of base stations that are proximate to the base stations in the active set. This list is referred to as the “Neighbor Set”. A memory within the mobile station includes information that would allow the mobile station to demodulate information transmitted from those base stations on the neighbor set. In accordance with the disclosed method and apparatus, the mobile station places a base station in the active set upon including the base station in a pilot strength measurement message (PSMM). The mobile station monitors transmissions from all of the base stations on the active set to receive a handoff direction message (HDM).

    摘要翻译： 即使在移动台已经接收到切换方向消息之前，即使当活动基站和移动台之间的通信链路恶化时，也能够完成软越区切换的通信系统。 移动台保持移动台与之通信的基站的列表，称为“活动集”。 此外，移动站维护在活动集合中靠近基站的另一个基站列表。 该列表被称为“邻居集”。 移动站内的存储器包括允许移动台解调从邻近组上的那些基站发送的信息的信息。 根据所公开的方法和装置，移动台在将基站包括在导频强度测量消息（PSMM）中时将基站放置在活动集中。 移动站监视来自主动集合上的所有基站的传输以接收切换方向消息（HDM）。

    Method and apparatus for reverse link loading estimation
    96.
    发明授权
    Method and apparatus for reverse link loading estimation 有权
    用于反向链路负载估计的方法和装置

    公开(公告)号：US06192249B1

    公开(公告)日：2001-02-20

    申请号：US09204616

    申请日：1998-12-03

    申请人： Roberto Padovani

    发明人： Roberto Padovani

    IPC分类号： H04Q720

    CPC分类号： H04W52/283 ,  H04W52/221 ,  H04W52/343 ,  H04W52/36

    摘要： In a wireless communication system, in order to determine a level of loading, the system enters a period of silence during which a designated remote unit continues to transmit but other remote unit transmissions are interrupted. The base station and designated remote unit perform closed loop power control on a reverse link signal received from the designated remote. A first series of power control commands accumulated and a first corresponding transmit gain adjustment value is stored. Normal operation is resumed. Once again, the base station and designated remote unit perform closed loop power control on the reverse link signal received from the designated remote unit. A second series of power control commands are accumulated and a second corresponding transmit gain adjustment value is stored. A level of loading is determined based upon the first and second transmit gain adjustment values.

    摘要翻译： 在无线通信系统中，为了确定负载水平，系统进入静默期间，在此期间指定的远程单元继续发送，而其他远程单元传输被中断。 基站和指定的远程单元对从指定的远程接收的反向链路信号执行闭环功率控制。 存储第一系列功率控制命令并存储第一对应的发射增益调整值。 恢复正常操作。 再一次，基站和指定的远程单元对从指定的远程单元接收的反向链路信号执行闭环功率控制。 累积第二系列功率控制命令，并存储第二对应的发射增益调整值。 基于第一和第二发射增益调整值来确定负载水平。

    Method for assigning optimal packet lengths in a variable rate communication system
    97.
    发明授权
    Method for assigning optimal packet lengths in a variable rate communication system 失效
    在可变速率通信系统中分配最佳分组长度的方法

    公开(公告)号：US6064678A

    公开(公告)日：2000-05-16

    申请号：US965705

    申请日：1997-11-07

    申请人： Nagabhushana T. Sindhushayana ,  Roberto Padovani

    发明人： Nagabhushana T. Sindhushayana ,  Roberto Padovani

    IPC分类号： H04L1/00 ,  H04L29/08 ,  H04W28/18 ,  H04J3/22

    CPC分类号： H04W28/18 ,  H04L1/0007 ,  H04L1/0018

    摘要： A method for assigning optimal packet lengths in a variable rate communication system capable of data transmission at one of a plurality of data rates. The packet lengths for the data rates are selected such that the maximum throughput rate is achieved while conforming to a fairness criteria. The fairness criteria can be achieved by restricting the packet length assigned to each data rate to a range of value, or L.sub.i.sup.min .ltoreq.L.sub.i .ltoreq.L.sub.i.sup.max. The packet lengths for all data rates are first initialized to the maximum packet lengths for those data rates. Then, for each data rate, a determination is made whether another packet length assignment would result in improved throughput rate. If the answer is yes, the packet length for this data rate is reassigned and the throughput rate with the updated packet length assignments is recomputed. The process is repeated for each data rate until all data rates have been considered. The throughput rate can be calculated using a probabilistic model or a deterministic model.

    摘要翻译： 一种用于在能够以多个数据速率之一进行数据传输的可变速率通信系统中分配最佳分组长度的方法。 选择数据速率的分组长度，使得在符合公平标准的同时实现最大吞吐速率。 公平性标准可以通过将分配给每个数据速率的分组长度限制在一定范围内来实现，或者使用Limin

    Method and apparatus for determining signal strength in a variable data rate system
    99.
    发明授权
    Method and apparatus for determining signal strength in a variable data rate system 失效
    用于确定可变数据速率系统中的信号强度的方法和装置

    公开(公告)号：US5703902A

    公开(公告)日：1997-12-30

    申请号：US490694

    申请日：1995-06-16

    申请人： Noam Abraham Ziv ,  Roberto Padovani

    发明人： Noam Abraham Ziv ,  Roberto Padovani

    IPC分类号： H04J13/04 ,  H04B7/005 ,  H04B17/00 ,  H04L1/00 ,  H04B15/00 ,  H04K1/00 ,  H04L27/30

    CPC分类号： H04W52/24 ,  H04B17/318 ,  H04L1/0059 ,  H04L1/0071

    摘要： A method and apparatus of determining signal strength, regardless of the signal data rate, in a receiver receiving signals from a variable rate transmitter. The incoming signal is comprised of a series of frames. Each frame is comprised of a number of power control groups containing data. The number of the power control groups containing data within each frame is dependent on the unknown data rate. The position of the power control groups within the frame is a pseudorandom. The signal strength of an incoming signal of unknown data rate is determined based upon an active set of power control groups within a frame. The active set of power control groups contain data independent of the unknown data rate. This signal strength information may be used to indicate that the signal strength is sufficient to perform further signal processing.

    摘要翻译： 在接收来自可变速率发射机的信号的接收机中确定信号强度的方法和装置，不管信号数据速率如何。 输入信号由一系列帧组成。 每个帧由包含数据的多个功率控制组组成。 在每帧内包含数据的功率控制组的数量取决于未知数据速率。 功率控制组在帧内的位置是伪随机的。 未知数据速率的输入信号的信号强度基于帧内的功率控制组的有效集合来确定。 功率控制组的有效组包含与未知数据速率无关的数据。 该信号强度信息可以用于指示信号强度足以进行进一步的信号处理。

    Method and system for the dynamic modification of control paremeters in a transmitter power control system
    100.
    发明授权
    Method and system for the dynamic modification of control paremeters in a transmitter power control system 失效
    发射机功率控制系统中控制参数的动态修改方法和系统

    公开(公告)号：US5396516A

    公开(公告)日：1995-03-07

    申请号：US020482

    申请日：1993-02-22

    申请人： Roberto Padovani ,  Noam Ziv

    发明人： Roberto Padovani ,  Noam Ziv

    IPC分类号： H04B1/40 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04L1/00 ,  H04L1/08 ,  H04L25/02 ,  H04B17/00

    CPC分类号： H04W52/267 ,  H04L1/0046 ,  H04L1/08 ,  H04L1/201 ,  H04L25/0262 ,  H04B2201/70705 ,  H04W52/12 ,  H04W52/20 ,  H04W52/50 ,  Y02B60/50

    摘要： In a communication system in which direct sequence spread spectrum modulation techniques are used interference is generated in communications by remote stations since the communications share the same frequency spectrum. In order to increase system capacity the power level of the remote station transmitters are controlled by the local station. A setpoint is generated by the local station and compared with the remote station signal strength measured at the local station. The result of this comparison is used to generate power level adjustment commands which are sent to the remote station. The remote station is responsive to the power level adjustment commands for increasing or decreasing remote station transmitter power. In a spread spectrum communication system in which data is encoded at variable data rates, the local station determines the rate at which received data was encoded by the transmitting remote station. The data is decoded at each possible rate with error metrics generated that are representative of the quality of the data decoded at each rate. A rate decision algorithm is used to evaluate the error metrics and make a decision on the rate at which the data was transmitted. A pattern match of rate decisions is used to modify a setpoint so as to closely control the transmitting power of the remote station as a function of the quality of the received data.

    摘要翻译： 在使用直接序列扩频调制技术的通信系统中，由远程站的通信产生干扰，因为通信共享相同的频谱。 为了提高系统容量，远程站发射机的功率电平由本地站控制。 设定点由本地站产生，并与本地站测量的远程站信号强度进行比较。 该比较的结果用于产生发送到远程站的功率电平调整命令。 远程站响应于用于增加或减少远程站发射机功率的功率电平调整命令。 在以可变数据速率对数据进行编码的扩频通信系统中，本地站确定接收到的数据由发送远程站编码的速率。 以每个可能的速率对数据进行解码，其中生成的误差度量代表以每个速率解码的数据的质量。 使用速率决策算法来评估误差度量，并对数据传输速率作出决定。 使用速率决定的模式匹配来修改设定点，以便根据接收到的数据的质量来密切地控制远程站的发射功率。