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公开(公告)号：US5867527A
公开(公告)日：1999-02-02
申请号：US810744
申请日：1997-03-04
IPC分类号： H04L1/02 , H04B1/707 , H04B7/26 , H04J11/00 , H04J13/00 , H04L27/30 , H04Q7/20 , H04B15/00 , H04K1/00
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70756 , H04B7/2628 , H04J13/0048 , H04B1/7113 , H04B1/7117 , H04B2201/70703
摘要： An integrated search processor used in a modem for a spread spectrum communications system buffers receive samples and utilizes a time sliced transform processor operating on successive offsets from the buffer. The search processor autonomously steps through a search as configured by a microprocessor specified search parameter set, which can include the group of antennas to search over, the starting offset and width of the search window to search over, and the number of Walsh symbols to accumulate results at each offset. The search processor calculates the correlation energy at each offset, and presents a summary report of the best paths found in the search to use for demodulation element reassignment. The search is done in a linear fashion independent of the probability that a signal being searched for was transmitted at any given time.
摘要翻译： 用于扩展频谱通信系统的调制解调器中的集成搜索处理器缓冲器接收采样并利用对来自缓冲器的连续偏移量进行操作的时间分片变换处理器。 搜索处理器自主地通过由微处理器指定的搜索参数集配置的搜索进行搜索，该搜索参数集可以包括要搜索的天线组，要搜索的搜索窗口的起始偏移和宽度以及要累积的沃尔什符号的数量 结果在每个偏移。 搜索处理器计算每个偏移处的相关能量，并呈现搜索中发现的用于解调元件重新分配的最佳路径的汇总报告。 搜索是以线性方式进行的，与在任何给定时间发送信号的概率无关。
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公开(公告)号：US5710768A
公开(公告)日：1998-01-20
申请号：US436029
申请日：1995-05-05
IPC分类号： H04L1/02 , H04B1/707 , H04B7/26 , H04J11/00 , H04J13/00 , H04L27/30 , H04Q7/20 , H04B15/00 , H04K1/00
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70756 , H04B7/2628 , H04J13/0048 , H04B1/7113 , H04B1/7117 , H04B2201/70703
摘要： An integrated search processor used in a modem for a spread spectrum communications system buffers receive samples and utilizes a time sliced transform processor operating on successive offsets from the buffer. The search processor autonomously steps through a search as configured by a microprocessor specified search parameter set, which can include the group of antennas to search over, the starting offset and width of the search window to search over, and the number of Walsh symbols to accumulate results at each offset. The search processor calculates the correlation energy at each offset, and presents a summary report of the best paths found in the search to use for demodulation element reassignment. The search is done in a linear fashion independent of the probability that a signal being searched for was transmitted at any given time.
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3.发明授权Demodulation element assignment in a system capable of receiving multiple signals 失效能够接收多个信号的系统中的解调元素分配
公开(公告)号：US5490165A
公开(公告)日：1996-02-06
申请号：US144902
申请日：1993-10-28
申请人： Robert D. Blakeney, II , Lindsay A. Weaver, Jr. , Noam A. Ziv , Paul T. Williamson , Roberto Padovani
发明人： Robert D. Blakeney, II , Lindsay A. Weaver, Jr. , Noam A. Ziv , Paul T. Williamson , Roberto Padovani
IPC分类号： H04B1/7087 , H04B1/7117 , H04B7/08 , H04B7/26 , H04B1/69
CPC分类号： H04B1/7117 , H04B1/7087
摘要： In a receiver having a plurality of demodulation elements, a method of assigning the plurality of demodulation element so a set of available signals. A first method emphasizes diversity of transmitting devices so that power control is optimal. A second method emphasizes the maximum signal strength available to produce aggregate maximum signal strength. Both methods control the number of reassignments so that excessive data is not lost during the reassignment process. The apparatus comprises the plurality of demodulation elements, at least one searcher element, and a controller.
摘要翻译： 在具有多个解调元件的接收机中，分配多个解调元件的方法是一组可用信号。 第一种方法强调发射设备的多样性，使得功率控制是最佳的。 第二种方法强调可产生最大信号强度的最大信号强度。 这两种方法都可以控制重新分配的次数，以便在重新分派过程中不会丢失过多的数据。 该装置包括多个解调元件，至少一个搜索器元件和控制器。
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公开(公告)号：US06894994B1
公开(公告)日：2005-05-17
申请号：US09575073
申请日：2000-05-19
IPC分类号： H04B1/707 , H04L1/00 , H04L1/08 , H04L1/16 , H04L1/18 , H04L12/28 , H04L12/56 , H04W80/00 , H04W84/00 , H04B7/216
CPC分类号： H04L1/0071 , H04B1/7103 , H04B2201/70702 , H04B2201/709709 , H04L1/08 , H04L1/1809 , H04W80/00 , H04W84/00
摘要： A wireless packet data communications system that includes a number of modem pool transceivers (MPTs), one or more modem pool controllers (MPCs), and one or more servers. Each MPT receives and processes data packets to generate a modulated signal (e.g., a CDMA spread spectrum signal) suitable for transmission over a terrestrial communications link. Each MPC provides call related processing for one or more MPTs. The servers couple to the MPTs and MPCs via an Internet Protocol (IP) back-bone and provide management of the communications system. The IP back-bone further interconnects the MPTs with one or more data networks and includes a number of routers that route data packets between the data networks and the MPTs. Each MPT can couple to two or more routers for redundancy. Each MPT is operated as an element in an IP network and is associated with an IP address that identifies the MPT. One to three MPTs can be deployed at each cell site to provide wireless data service coverage for up to three sectors at the cell site. The MPCs can either be centralized and coupled to the MPTs via the IP back-bone or distributed about the communications system.
摘要翻译： 包括多个调制解调器池收发器（MPT），一个或多个调制解调器池控制器（MPC）以及一个或多个服务器的无线分组数据通信系统。 每个MPT接收和处理数据分组以产生适于通过地面通信链路传输的调制信号（例如，CDMA扩频信号）。 每个MPC为一个或多个MPT提供与呼叫相关的处理。 这些服务器通过互联网协议（IP）背景耦合到MPT和MPC，并提供通信系统的管理。 IP背板进一步将MPT与一个或多个数据网络互连，并且包括在数据网络和MPT之间路由数据分组的多个路由器。 每个MPT可以耦合到两个或更多路由器进行冗余。 每个MPT作为IP网络中的元素运行，并与识别MPT的IP地址相关联。 可以在每个小区站点部署一到三个MPT，以在小区站点为多达三个扇区提供无线数据服务覆盖。 MPC可以集中化，并通过IP背板耦合到MPT，或者分布在通信系统上。
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公开(公告)号：US06222830B1
公开(公告)日：2001-04-24
申请号：US08519670
申请日：1995-08-25
申请人： Roberto Padovani , Bruce R. Meagher , Noam A. Ziv
发明人： Roberto Padovani , Bruce R. Meagher , Noam A. Ziv
IPC分类号： H04Q700
CPC分类号： H04L1/0057
摘要： A novel and improved system and method for assembling a single data stream from multiple instances of that data stream is described. Data transmitted from a cellular telephone subscriber unit is received by a set of base transceiver stations. Each base transceiver station performs various error detection procedures on segments of the data referred to as frames. These error detection procedures may include CRC check sum verification, Yamamoto metric calculation, re-encoded signal error rate calculation, or a combination thereof. The results of these error detection procedures are placed into a frame quality metric. The frame, frame quality metric, a time stamp and an address are placed into a packet that is transmitted from each base transceiver station to a base station controller which matches packets attempting to transmit the same information using the time stamp and selects one frame from the packets for further processing based on the associated frame quality metric.
摘要翻译： 描述了一种用于组合来自该数据流的多个实例的单个数据流的新颖和改进的系统和方法。 从蜂窝电话用户单元发送的数据由一组基站收发台接收。 每个基站收发器在被称为帧的数据的段上执行各种错误检测过程。 这些错误检测程序可以包括CRC校验和验证，山本度量计算，重新编码的信号错误率计算或其组合。 这些错误检测过程的结果被放置在帧质量度量中。 帧，帧质量度量，时间戳和地址被放置到从每个基站收发器发送到基站控制器的分组中，该基站控制器与尝试使用时间戳发送相同信息的分组匹配，并从 基于相关联的帧质量度量进一步处理的分组。
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公开(公告)号：US5848063A
公开(公告)日：1998-12-08
申请号：US652742
申请日：1996-05-23
申请人： Lindsay A. Weaver, Jr. , David B. Munsinger , Roberto Padovani , Noam A. Ziv , Gadi Karmi , Klein S. Gilhousen
发明人： Lindsay A. Weaver, Jr. , David B. Munsinger , Roberto Padovani , Noam A. Ziv , Gadi Karmi , Klein S. Gilhousen
CPC分类号： H04W36/30 , H04W36/0083
摘要： In a communications network, a network user communicates through a remote unit with another user via at least one base station. The communications network includes a first mobile switching center which controls communications through a first set of base stations including a first base station. The remote unit stores a list of active base stations which has an entry corresponding to each base station with which active communication is established. The first base station has an entry on the list of active base stations. The first base station measures a round trip delay of an active communication signal between the first base station and the remote unit. A handoff of the active communication signal is initiated if the round trip delay of the active communication exceeds a threshold if the first base station is designated as a reference base station. Alternatively, the remote unit also stores a list of candidate base stations comprising an entry corresponding to each base station through which active communication may be possible but is not established. A handoff of the active communication signal is initiated if the list of candidate base stations comprises an entry corresponding to a triggering pilot signal.
摘要翻译： 在通信网络中，网络用户经由至少一个基站通过远程单元与另一用户进行通信。 通信网络包括第一移动交换中心，其通过包括第一基站的第一组基站来控制通信。 远程单元存储活动基站的列表，其具有对应于建立了主动通信的每个基站的条目。 第一个基站在活动基站列表中有一个条目。 第一基站测量第一基站和远程单元之间的活动通信信号的往返延迟。 如果第一基站被指定为参考基站，则主动通信的往返延迟超过阈值时，启动主动通信信号的越区切换。 或者，远程单元还存储候选基站的列表，其包括对应于每个基站的条目，活动通信可以通过该条目可能但不被建立。 如果候选基站的列表包括与触发导频信号相对应的条目，则启动主动通信信号的越区切换。
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公开(公告)号：US07016329B2
公开(公告)日：2006-03-21
申请号：US09798523
申请日：2001-03-03
申请人： Roberto Padovani , Bruce R. Meagher , Noam A. Ziv
发明人： Roberto Padovani , Bruce R. Meagher , Noam A. Ziv
IPC分类号： H04Q7/00
CPC分类号： H04L1/0057
摘要： A system and method for assembling a single data stream from multiple instances of that data stream is described. Data transmitted from a cellular telephone subscriber unit is received by a set of base transceiver stations. Each base transceiver station performs various error detection procedures on segments of the data referred to as frames. These error detection procedures may include CRC check sum verification, Yamamoto metric calculation, re-encoded signal error rate calculation, or a combination thereof. The results of these error detection procedures are placed into a frame quality metric. The frame, frame quality metric, a time stamp and an address are placed into a packet that is transmitted from each base transceiver station to a base station controller which matches packets attempting to transmit the same information using the time stamp and selects one frame from the packets for further processing based on the associated frame quality metric.
摘要翻译： 描述用于组合来自该数据流的多个实例的单个数据流的系统和方法。 从蜂窝电话用户单元发送的数据由一组基站收发台接收。 每个基站收发器在被称为帧的数据的段上执行各种错误检测过程。 这些错误检测程序可以包括CRC校验和验证，山本度量计算，重新编码的信号错误率计算或其组合。 这些错误检测过程的结果被放置在帧质量度量中。 帧，帧质量度量，时间戳和地址被放置到从每个基站收发器发送到基站控制器的分组中，该基站控制器与尝试使用时间戳发送相同信息的分组匹配，并从 基于相关联的帧质量度量进一步处理的分组。
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8.发明授权
公开(公告)号：US5857147A
公开(公告)日：1999-01-05
申请号：US575049
申请日：1995-12-20
申请人： William R. Gardner , Paul E. Jacobs , Roberto Padovani , Noam A. Ziv , S. Katherine Lam , Andrew P. DeJaco
发明人： William R. Gardner , Paul E. Jacobs , Roberto Padovani , Noam A. Ziv , S. Katherine Lam , Andrew P. DeJaco
CPC分类号： H04W28/22 , G10L19/22 , G10L19/24 , H04B7/2659 , H04L1/0014 , H04L1/0022 , H04L1/0025 , H04L47/10 , H04L47/14 , H04L47/263 , H04L47/33 , H04L47/38 , H04W24/00
摘要： A method and apparatus are described for controlling the data rates for communications to and from a base station and a plurality of remote users. The usage of the communications resource whether the forward link resource (from base station to remote users) or reverse link resource (from remote users to base station) is measured. The measured usage value is compared against at least one predetermined threshold value and the data rates of communications or a subset of communications on said communications resource is modified in accordance with said comparisons.
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公开(公告)号：US09071344B2
公开(公告)日：2015-06-30
申请号：US11334977
申请日：2006-01-18
IPC分类号： H04W36/00 , H04B1/7107 , H04W52/12
CPC分类号： H04B1/7107 , H04W52/12
摘要： A method and system for reverse link interference cancellation. One method comprises demodulating and decoding at least one signal sent from at least one access terminal and received by a first base station, sending demodulated, decoded information of the signal to a second base station, reconstructing the signal at the second base station, and subtracting the reconstructed signal from a buffer at the second base station.
摘要翻译： 一种用于反向链路干扰消除的方法和系统。 一种方法包括对从至少一个接入终端发送并由第一基站接收的至少一个信号进行解调和解码，向第二基站发送解调后的解码的信号信息，重构第二基站的信号，以及减去 来自第二基站的缓冲器的重建信号。
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公开(公告)号：US20090252201A1
公开(公告)日：2009-10-08
申请号：US12484572
申请日：2009-06-15
CPC分类号： H04B1/7107 , H04B1/71075 , H04B2201/70701 , H04L25/0224 , H04W52/12
摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.
摘要翻译： 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。
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