公开(公告)号：US20020064182A1

公开(公告)日：2002-05-30

申请号：US09728575

申请日：2000-11-30

Applicant: Tantivy Communications, Inc.

Inventor： John E. Hoffmann ,  George Rodney Nelson JR. ,  James A. Proctor JR. ,  Antoine J. Rouphael

IPC: H04J013/00

CPC classification number: H04L5/005 ,  H04B1/707 ,  H04B7/2628 ,  H04B2201/70701 ,  H04L1/0041 ,  H04L1/0063 ,  H04L1/0065 ,  H04L1/0066 ,  H04L1/0071 ,  H04L5/0048 ,  H04L27/183 ,  H04L27/2657 ,  H04L27/2662

Abstract: A technique for encoding digital communication signals. Data symbols are augmented in pilot symbols inserted at predetermined positions. The pilot augmented sequence is then fed to a deterministic error correction block encoder, such as a turbo product coder, to output a coded sequence. The symbols in the error correction encoded sequence are then rearranged to ensure that the output symbols derived from input pilot symbols are located at regular, predetermined positions. As a result, channel encoding schemes can more easily be used which benefits from power of two length block sizes.

Abstract translation: 一种用于编码数字通信信号的技术。 数据符号在插入预定位置的导频符号中增加。 导频增强序列然后被馈送到诸如turbo乘积编码器的确定性纠错块编码器，以输出编码序列。 然后重新排列纠错编码序列中的符号，以确保从输入导频符号导出的输出符号位于规则的预定位置。 结果，可以更容易地使用信道编码方案，其受益于两个长度块大小的功率。

公开(公告)号：US20020054581A1

公开(公告)日：2002-05-09

申请号：US09997621

申请日：2001-11-29

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04B007/216

CPC classification number: H04B7/2628 ,  H04B1/7075 ,  H04B1/70754 ,  H04B2001/70706 ,  H04B2201/70703 ,  H04B2201/70709 ,  H04B2201/70715 ,  H04J13/0022 ,  H04J13/004 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L7/06 ,  H04L25/14 ,  H04L27/2601 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/20 ,  H04W28/22 ,  H04W56/00 ,  H04W56/0045 ,  H04W56/0075 ,  H04W72/0413 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/04 ,  H04W76/28 ,  H04W84/14

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism in an idle mode and also request additional channels. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance subchannel.

Abstract translation: 一种用于CDMA无线通信的服务选项覆盖，其中通过向每个子信道分配给定长伪噪声（PN）码的不同码相位，在反向链路上定义多个可分配子信道。 然后通过根据需要基于每个网络层连接动态分配一个，一个或多个子信道来满足每个在线订户单元的瞬时带宽需求。 系统有效地在用户单元和反向链路上的基站之间提供相对大量的虚拟物理连接，用于延长的空闲周期，例如当连接到订户单元的计算机上电时，而不是当前主动发送或接收数据。 这些维护子信道允许基站和用户单元在空闲模式下保持同步和时间同步，并且还请求附加信道。 这又允许通过分配新的码相子信道来快速获取附加的子信道。 优选地，根据相应维护子信道的码相位的预定码相位关系来分配新信道的码相位。

公开(公告)号：US20020009062A1

公开(公告)日：2002-01-24

申请号：US09791503

申请日：2001-02-23

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR. ,  Lawrence Wayne LaMont JR. ,  George Rodney Nelson JR. ,  Antoine J. Rouphael ,  John E. Hoffman

IPC: H04B007/216

CPC classification number: H01Q1/246 ,  H01Q3/26 ,  H04B7/0408 ,  H04B7/0678 ,  H04B7/0848 ,  H04J13/004 ,  H04W88/08

Abstract: Codes are applied to signals to reduce the number of transceivers and associated RF cabling extending from base electronics to antenna array electronics in a base station providing beam forming. The transceivers can be reduced to as few as one, and the RF cabling can be reduced to none. The codes may be orthogonal codes, such as Walsh codes. The codes are applied: to weights used to produce the beam forming, signal being transmitted or received, or both. The codes are applied a second time to decompose the coded weights/signal to associate the weights and signal with the beam forming. The coded weights/signal can be summed, including with other coded weights/signals, to produce a composite code division multiplexed signal for transmission between transceiver(s) and antenna array electronics over a single RF or non-RF cable spanning between the base electronics and array electronics. The complexity, size, and cost of electronics and cables are reduced, and calibration of transceivers and demodulators can be eliminated.

Abstract translation: 代码被应用于信号以减少在提供波束成形的基站中从基座电子器件延伸到天线阵列电子器件的收发器和相关联的射频布线的数量。 收发器可以减少到少至一个，并且RF布线可以减少到无。 代码可以是正交码，例如沃尔什码。 应用代码：用于产生波束形成，发送或接收信号的权重，或两者。 代码被应用第二次以分解编码的权重/信号以将权重和信号与波束形成相关联。 编码的权重/信号可以与包括其他编码的权重/信号相加，以产生用于在收发器和天线阵列电子器件之间通过单个RF或非RF电缆之间传输的复合码分复用信号， 和阵列电子学。 降低了电子和电缆的复杂性，尺寸和成本，可以消除收发器和解调器的校准。

公开(公告)号：US20010030990A1

公开(公告)日：2001-10-18

申请号：US09738934

申请日：2000-12-15

Applicant: TANTIVY Communications Inc.

Inventor： Antoine J. Rouphael ,  John E. Hoffmann ,  George Rodney Nelson JR. ,  Samir K. Patel ,  James A. Proctor JR. ,  Daniel I. Riley

IPC: H04K001/00 ,  H04B015/00 ,  H04L027/30

CPC classification number: H04B1/707 ,  H04B1/7105 ,  H04B1/712 ,  H04B2201/70703 ,  H04B2201/70705 ,  H04B2201/7071

Abstract: A single, common correlation filter (CF) core is provided in a wireless system using CDMA. A plurality of channels with different data rates are provided in the wireless system. The channels provided in the wireless system include the access channel, the maintenance channel, and the traffic channel in which information (e.g., pilot or data symbols or both) is transmitted at the tier 1, tier 2 and tier 3 rates. The data rate for transmitting the information is programmable by digital signal processor (DSP). A user-unique code, such as a PN code, is applied to the information being transmitted in the channels of the wireless system. The information is QPSK modulated and transmitted in any one of the channels at any data rate. The transmitted information is correlated at the smallest data rate (i.e., the tier 1 rate) in the correlation filter (CF) of the wireless system by time multiplexing delayed versions of the PN code to the correlation filter core. The correlated information is then demultiplexed and pilot aided QPSK demodulated. The demodulated information is summed at the proper integer multiple of the tier 1 rate to achieve the tier 2 and tier 3 rates. The three strongest multipaths (in terms of the received power) are selected in a window or time period for optimal information recovery. Furthermore, three outputs from the demodulated information can be provided and combined for temporal diversity. Spatial diversity is achieved by providing a plurality of antennas at each receiver and a single, common correlation filter at each of the plurality of antennas of the receivers in the wireless system.

Abstract translation: 在使用CDMA的无线系统中提供单个公共相关滤波器（CF）核。 在无线系统中提供具有不同数据速率的多个信道。 在无线系统中提供的信道包括接入信道，维护信道和业务信道，信道（例如，导频或数据符号或两者）以层1，层2和层3速率被传输。 用于传输信息的数据速率可由数字信号处理器（DSP）编程。 诸如PN码的用户唯一码被应用于在无线系统的频道中发送的信息。 该信息以任何数据速率在任何一个信道中进行QPSK调制和传输。 所发送的信息通过将PN码的延迟版本时间复用到相关滤波器核心，以无线系统的相关滤波器（CF）中的最小数据速率（即，层1速率）相关。 然后将相关信息解复用并进行导频辅助QPSK解调。 解调信息以1级速率的适当整数倍相加，以实现2级和3级速率。 在窗口或时间段中选择三个最强的多路径（以接收功率计），以获得最佳信息恢复。 此外，可以提供来自解调信息的三个输出并将其组合用于时间分集。 通过在每个接收机处提供多个天线以及在无线系统中的接收机的多个天线的每个天线处提供单个公共相关滤波器来实现空间分集。

公开(公告)号：US20010021197A1

公开(公告)日：2001-09-13

申请号：US09773252

申请日：2001-01-31

Applicant: Tantivy Communications, Inc.

Inventor： Lawrence R. Foore ,  James A. Proctor JR.

IPC: H04J003/16

CPC classification number: H04W72/04 ,  H04J3/1682 ,  H04J13/16 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L25/14 ,  H04L47/14 ,  H04L47/283 ,  H04L47/29 ,  H04L47/30 ,  H04L47/70 ,  H04L47/762 ,  H04L47/803 ,  H04L47/824 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/0257 ,  H04W28/06 ,  H04W28/14 ,  H04W72/0406 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/1242 ,  H04W72/1252 ,  H04W74/00 ,  H04W76/10 ,  H04W80/00 ,  H04W84/14

Abstract: A technique for providing high speed data service over standard wireless connections via an unique integration of protocols and existing cellular signaling, such as is available with Code Division Multiple Access (CDMA) type systems through more efficient allocation of access to CDMA channels. For example, when more users exist than channels, the invention determines a set of probabilities for which users will require channel access at which times, and dynamically assigns channel resources accordingly. Channel resources are allocated according to a buffer monitoring scheme provided on forward and reverse links between a base station and multiple subscriber units. Each buffer is monitored over time for threshold levels of data to be transmitted in that buffer. For each buffer, a probability is calculated that indicates how often the specific buffer will need to transmit data and how much data will be transmitted. This probability takes into account the arrival rates of data into the buffer, as well as which thresholds within the buffer are exceeded, as well as which resources in the form of channels are already allocated to the subscriber unit.

Abstract translation: 一种通过标准无线连接提供高速数据业务的技术，通过独特的协议和现有蜂窝信令的集成，例如通过对CDMA信道进行更有效的接入分配可用于码分多址（CDMA）型系统。 例如，当存在比频道更多的用户时，本发明确定用户在哪个时间需要信道接入的概率集合，并相应地动态分配信道资源。 根据在基站和多个用户单元之间的前向和反向链路上提供的缓冲器监视方案来分配信道资源。 随着时间的推移监视每个缓冲区，以便在该缓冲区中传输数据的阈值级别。 对于每个缓冲区，计算概率，指示特定缓冲区需要传输数据的频率以及将传输多少数据。 这个概率考虑到数据到达缓冲器的速率以及超过缓冲器内的哪个阈值，以及信道形式的哪些资源已经被分配给用户单元。

公开(公告)号：US20010002904A1

公开(公告)日：2001-06-07

申请号：US09730376

申请日：2000-12-05

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04J003/16 ,  H04J003/22

CPC classification number: H04B7/2628 ,  H04B1/7075 ,  H04B1/70754 ,  H04B2001/70706 ,  H04B2201/70703 ,  H04B2201/70709 ,  H04B2201/70715 ,  H04J13/0022 ,  H04J13/004 ,  H04J13/16 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L7/06 ,  H04L25/14 ,  H04L27/2601 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/20 ,  H04W28/22 ,  H04W56/00 ,  H04W56/0045 ,  H04W56/0075 ,  H04W72/0413 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/0466 ,  H04W74/00 ,  H04W74/04 ,  H04W76/28 ,  H04W84/14

Abstract: A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance subchannel.

Abstract translation: 一种用于CDMA无线通信的服务选项覆盖，其中通过向每个子信道分配给定长伪噪声（PN）码的不同码相位，在反向链路上定义多个可分配子信道。 然后通过根据需要基于每个网络层连接动态分配一个，一个或多个子信道来满足每个在线订户单元的瞬时带宽需求。 系统有效地在用户单元和反向链路上的基站之间提供相对大量的虚拟物理连接，用于延长的空闲周期，例如当连接到订户单元的计算机被接通而不是当前主动发送或接收数据时。 这些维护子信道允许基站和用户单元保持同步和时间同步。 这又允许通过分配新的码相子信道来快速获取附加的子信道。 优选地，根据相应维护子信道的码相位的预定码相位关系来分配新信道的码相位。

公开(公告)号：US20040257975A1

公开(公告)日：2004-12-23

申请号：US10767843

申请日：2004-01-29

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04J011/00

CPC classification number: H04W24/02 ,  H04B7/2628 ,  H04J13/004 ,  H04J13/0048 ,  H04J13/18

Abstract: A base station receives a reverse link signal from a given field unit that includes a common code (i.e., shared by other field units) and a unique orthogonal code (i.e., distinguishing the given field unit from other field units). The reverse link signal travels in a multi-path environment along a primary path and at least one secondary path. The base station makes a diversity decision based on the unique orthogonal code seen at two different phases. The base station determines a gross timing offset to align the common code of the given field unit with the common code from other field units using unique orthogonal codes. The given field unit makes a corresponding coarse adjustment of the phase of its common code.

Abstract translation: 基站从包括公共码（即由其他场单元共享）的给定字段单元和唯一正交码（即，将给定字段单元与其他字段单元区分开）接收反向链路信号。 反向链路信号在多路径环境中沿着主路径和至少一个次路径行进。 基站基于在两个不同阶段看到的唯一正交码进行分集决策。 基站确定总时间偏移量，以使用唯一正交码将给定场单元的公共码与来自其他场单元的公共码对齐。 给定的场单元对其通用码的相位进行相应的粗调。

公开(公告)号：US20040179497A1

公开(公告)日：2004-09-16

申请号：US10767016

申请日：2004-01-29

Applicant: Tantivy Communications, Inc.

Inventor： Lawrence R. Foore ,  James A. Proctor JR.

IPC: H04B007/216

CPC classification number: H04W72/04 ,  H04J3/1682 ,  H04J13/16 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L25/14 ,  H04L47/14 ,  H04L47/283 ,  H04L47/29 ,  H04L47/30 ,  H04L47/70 ,  H04L47/762 ,  H04L47/803 ,  H04L47/824 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  H04W24/00 ,  H04W28/0257 ,  H04W28/06 ,  H04W28/14 ,  H04W72/0406 ,  H04W72/0453 ,  H04W72/0486 ,  H04W72/1242 ,  H04W72/1252 ,  H04W74/00 ,  H04W76/10 ,  H04W80/00 ,  H04W84/14

Abstract: A base station provides wireless communication of digital signals over digital communication paths, with the digital signals being communicated using radio frequency channels via Code Division Multiple Access (CDMA) modulated radio signals. The base station includes a wireless transceiver for establishing communication sessions over the digital communication paths, and buffers for storing data to be transmitted by the wireless transceiver. Each buffer is associated with a particular digital communication path and has a threshold associated with a level of data stored therein. A transmission processor allocates code channels within the radio frequency channels to transmit the stored data during the communication sessions. A channel resource assignor connected to the transmission processor monitors a level of data stored in each buffer and computes an urgency factor for each buffer based upon the threshold associated therewith. The urgency factor represents a relative need for transmitting the stored data over the particular digital communication path associated with that buffer. The channel resource assignor compares the computed urgency factors for buffers for determining how many code channels are to be allocated to each digital communication path.

Abstract translation: 基站通过数字通信路径提供数字信号的无线通信，数字信号通过码分多址（CDMA）调制的无线电信号使用射频信道进行通信。 基站包括用于通过数字通信路径建立通信会话的无线收发器，以及用于存储要由无线收发器发送的数据的缓冲器。 每个缓冲器与特定的数字通信路径相关联并且具有与存储在其中的数据级别相关联的阈值。 发送处理器在无线电频率信道内分配码信道，以在通信会话期间发送所存储的数据。 连接到发送处理器的信道资源分配器监视存储在每个缓冲器中的数据的级别，并且基于与其相关联的阈值来计算每个缓冲器的紧急因素。 紧急因素代表了通过与该缓冲器相关联的特定数字通信路径发送存储的数据的相对需要。 信道资源分配器将计算出的缓冲器的紧急因素进行比较，以确定要向每个数字通信路径分配多少代码信道。

公开(公告)号：US20040157551A1

公开(公告)日：2004-08-12

申请号：US10601180

申请日：2003-06-20

Applicant: Tantivy Communications, Inc

Inventor： Kenneth M. Gainey ,  James A. Proctor JR. ,  John A. Regnier ,  Jonathan L. Hughes ,  Stefan Haenggi ,  Michael J. Lynch

IPC: H04B001/60 ,  H04Q007/20

CPC classification number: H04B7/15528 ,  H04B7/15571

Abstract: A repeater that extends the range of a wireless communication system especially one using Time Division Duplex (TDD) protocols. The device preferably translates signals received on a first radio frequency channel to a second radio frequency channel. The repeater preferably monitors one or more channels for transmissions. When a transmission on one channel is detected, the repeater is configured to translate the received signal to another channel where it is then transmitted. The device thus solves a problem of isolating input and output signal from one another.

Abstract translation: 一种延长无线通信系统范围的转发器，特别是使用时分双工（TDD）协议。 该设备优选地将在第一射频信道上接收的信号转换为第二射频信道。 中继器优选地监视一个或多个信道用于传输。 当检测到一个信道上的传输时，中继器被配置为将接收到的信号转换到另一个信道，然后被发送。 因此，该装置解决了彼此分离输入和输出信号的问题。

公开(公告)号：US20040147287A1

公开(公告)日：2004-07-29

申请号：US10434437

申请日：2003-05-07

Applicant: Tantivy Communications, Inc.

Inventor： George Rodney Nelson JR. ,  James A. Proctor JR. ,  John A. Regnier

IPC: H04M001/00 ,  H04B001/38

CPC classification number: H04W52/08 ,  H01Q3/26 ,  H04B7/022 ,  H04B17/327 ,  H04W52/143 ,  H04W52/146 ,  H04W52/18 ,  H04W52/24 ,  H04W52/242 ,  H04W52/283 ,  H04W52/40 ,  H04W52/42

Abstract: A technique for steering a directional antenna such as may be used with User Equipment (UE) in a wireless communication system. Optimum angle settings for the directional antenna are determined as different values for an uplink and downlink; that is for simple reception and simple transmission. Thus, rather than determine compromised directions that are picked in an attempt to optimize transmission and reception with the same directional setting, directional settings may be optimized independently. The invention is of particular use in a Time Division Duplex (TDD) system where transmit and receive functions can be operating independently at different times. In further aspects, an optimum direction is determined by estimating an interference signal power which is detected from signals emanating from adjacent base stations (access points) and determining a directional setting that minimizes interference to adjacent cells based upon such measurements. A further level of sophistication in antenna angle setting, is to monitor the loading of adjacent cell sites base stations and turning interference and determine the settings accordingly to minimize interference to such heavily loaded neighbors. Further aspects of the invention adapts to acquisition modes that accommodate the directional setting in active use of the system.

Abstract translation: 用于在无线通信系统中用于指导定向天线的技术，例如可以与用户设备（UE）一起使用。 定向天线的最佳角度设置被确定为上行链路和下行链路的不同值; 这是为了简单的接收和简单的传输。 因此，可以独立地优化方向设置，而不是确定在尝试以相同的方向设置来优化发送和接收的挑选方向。 本发明在时分双工（TDD）系统中特别有用，其中发送和接收功能可以在不同时间独立运行。 在另外的方面，通过估计从相邻基站（接入点）发出的信号中检测到的干扰信号功率，并且基于这样的测量确定最小化对相邻小区的干扰的方向设置来确定最佳方向。 在天线角度设置方面的进一步的复杂程度是监视相邻小区站点基站的负荷和转向干扰，并相应地确定设置以最小化对这种负载较重的邻居的干扰。 本发明的另外的方面适应于在系统的主动使用中适应方向设置的采集模式。