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1. 发明申请

WO0163778A3 REVERSE LINK CORRELATION FILTER IN MULTI RATE CDMA WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：多速率CDMA无线通信系统中的反向链路相关滤波器
公开(公告)号：WO0163778A3
公开(公告)日：2002-05-30
申请号：PCT/US0105682
申请日：2001-02-23
申请人： TANTIVY COMM INC , ROUPHAEL ANTOINE J , HOFFMANN JOHN E , NELSON GEORGE RODNEY JR , PATEL SAMIR K , PROCTOR JAMES A JR , RILEY DANIEL L
发明人： ROUPHAEL ANTOINE J , HOFFMANN JOHN E , NELSON GEORGE RODNEY JR , PATEL SAMIR K , PROCTOR JAMES A JR , RILEY DANIEL L
IPC分类号： H04B1/707 , H04B1/7105 , H04B1/712
CPC分类号： H04B1/707 , H04B1/7105 , H04B1/712 , H04B2201/70703 , H04B2201/70705 , H04B2201/7071
摘要： A single, common correlation filter (CF) core is provided in a wireless system using CDMA (code division multiple access). 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 (which is the basic despreading rate), tier 2 and tier 3 rates. The data rate for transmitting the information is programmable by an external programmable processor, e.g., a digital signal processor (DSP). A user-unique code, such as a PN (pseudo-random noise) code, is applied to the information being transmitted in the channels of the wireless system. Theinformation is modulated and transmitted in any one of the channels at any data rate. The transmitted information is correlated at the basic despreading 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 (or orthogonal code, Walsh code) to the correlation filter core. The correlated information is then demultiplexed and 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. One or more signal components are selected (in terms of the received power, signal-to-noise ratio or multipath width) in a window or time period for optimal information recovery. The selecting step can also be implemented according to a preprogrammed time alignment. Furthermore, outputs from the demodulated information can be provided and combined for temporal diversity. Spatial diversity is achieved by providing a plurality of antennas, and a plurality of receivers at a location and providing a single, common correlation filter at each of the plurality of antennas of the receivers in the wireless system.
摘要翻译：在使用CDMA（码分多址）的无线系统中提供单个公共相关滤波器（CF）核心。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，其中信息（例如，导频或数据符号或两者）在层1（其是基本解扩频率），层2 和三级费率。用于传输信息的数据速率可由外部可编程处理器（例如数字信号处理器（DSP））编程。诸如PN（伪随机噪声）码的用户唯一码被应用于在无线系统的信道中发送的信息。信息在任何一个通道中以任何数据速率进行调制和传输。通过将PN码（或正交码，沃尔什码）的延迟版本时间多路复用到相关滤波器（LF），在无线系统的相关滤波器（CF）中以基本解扩频率（即，层1频率）核心。相关信息然后被解复用和解调。解调后的信息以第一层速率的适当整数倍加总，以达到第二层和第三层速率。在窗口或时间段内选择一个或多个信号分量（就接收功率，信噪比或多径宽度而言）以实现最佳信息恢复。选择步骤也可以根据预编程的时间对准来实现。此外，来自解调信息的输出可以被提供并组合用于时间分集。通过在一个位置处提供多个天线和多个接收机并在无线系统中的接收机的多个天线中的每个天线处提供单个公共相关滤波器来实现空间分集。

2. 发明申请

WO0139423A3 VARIABLE RATE CODING FOR FORWARD LINK 审中-公开
标题翻译：用于前向链路的可变速率编码
公开(公告)号：WO0139423A3
公开(公告)日：2001-12-13
申请号：PCT/US0042201
申请日：2000-11-16
申请人： TANTIVY COMM INC
发明人： PROCTOR JAMES A JR
IPC分类号： H04B7/26 , H04L1/00 , H04Q7/38
CPC分类号： H04L1/0041 , H03M13/03 , H04L1/0009 , H04L1/0025
摘要： A technique for encoding a signal used in a digital communication system in which individual traffic channel data rates may be adapted to specific channel conditions. In particular, a forward error correction coding rate is adapted for individual channels while at the same time maintaining a fixed block size independent of the FEC coding rate. This allows the system data rate to adapt to the channel conditions experienced by a specific user. Thus, users experiencing good communication conditions with low multipath distortion may be allocated higher capacity, whereas users with significant multipath distortion may make use of lower rate (higher levels of coding) error codes to maintain high quality. Messages are sent from a transmitter to a receiver to inform the receiver of the coding rate implemented at any given point in time. These parameters may be adjusted independent of tranmitted power level through the expedient of ensuring that size of a transmitted frame remains constant, while permitting the ability to change FEC coding rates and FEC block sizes.
摘要翻译：用于编码在数字通信系统中使用的信号的技术，其中个体业务信道数据速率可以适应于特定信道条件。特别地，前向纠错编码率适用于各个信道，同时保持独立于FEC编码率的固定块大小。这允许系统数据速率适应特定用户经历的频道条件。因此，具有低多径失真的良好通信条件的用户可以被分配较高的容量，而具有显着多径失真的用户可以利用较低的速率（较高编码水平）的错误代码来维持高质量。消息从发射机发送到接收机，以通知接收机在任何给定时间点实现的编码速率。这些参数可以通过确保发送帧的大小保持恒定的方式独立于传输功率电平进行调整，同时允许改变FEC编码速率和FEC块大小的能力。

3. 发明申请

WO0158043A9 MAINTENANCE LINK USING ACTIVE/STANDBY REQUEST CHANNELS 审中-公开
标题翻译：使用主动/待机请求通道进行维护链接
公开(公告)号：WO0158043A9
公开(公告)日：2002-10-24
申请号：PCT/US0103927
申请日：2001-02-07
申请人： TANTIVY COMM INC
发明人： NELSON G RODNEY JR , HOFFMANN JOHN E , ROUPHAEL ANTOINE J , PROCTOR JAMES A JR
IPC分类号： H04B7/26 , H04W56/00
CPC分类号： H04W56/0085 , H04B7/2637
摘要： Multiple field units in a CDMA system are synchronized for communication with a base station using shared forward and reverse link channels. In an illustrative embodiment, each field unit is assigned a time slot in a forward link channel to receive messages from the base station. Likewise, each field unit is assigned a time slot on a common reverse link channel for transmitting messages to the base station. Timing alignment and power level control among each of many field units and the base station is achieved by analyzing messages received at the base station in a corresponding time slot as transmitted by each field unit. Thereafter, a message is transmitted from the base station in a corresponding time slot to a particular field unit for adjusting its timing or power level so that future messages transmitted from the field unit are received in the appropriate time slot at the base station at a desired power level. In this way, minimal resources are deployed to maintain communication and precise synchronization between a base station and each of multiple users, minimizing collisions between field units transmitting in adjacent time slots on the reverse link. This method reduces the frequency a field unit must rely on the use of a slotted aloha random access channel according to IS-95.
摘要翻译： CDMA系统中的多个场单元被同步，以使用共享的前向和反向链路信道与基站进行通信。在说明性实施例中，每个现场单元在前向链路信道中分配时隙以从基站接收消息。类似地，每个现场单元在公共反向链路信道上分配一个时隙，用于向基站发送消息。通过在每个场单元发送的相应时隙中分析在基站处接收的消息来实现许多场单元和基站中的每一个中的定时对准和功率电平控制。此后，在对应的时隙中从基站发送消息到特定的现场单元，以调整其定时或功率电平，使得在现场单元发送的未来消息在基站的适当时隙中以期望的能量等级。以这种方式，部署最小资源以维持基站与多个用户中的每一个之间的通信和精确同步，从而最小化在反向链路上的相邻时隙中发送的现场单元之间的冲突。该方法降低了场单元必须依赖于使用根据IS-95的时隙aloha随机接入信道的频率。

4. 发明申请

WO0147294A3 METHOD AND APPARATUS FOR A SPECTRALLY COMPLIANT CELLULAR COMMUNICATION SYSTEM 审中-公开
标题翻译：用于光谱合成细胞通信系统的方法和装置
公开(公告)号：WO0147294A3
公开(公告)日：2002-03-21
申请号：PCT/US0034353
申请日：2000-12-18
申请人： TANTIVY COMM INC
发明人： AMALFITANO CARLO , PROCTOR JAMES A JR
IPC分类号： H04W72/04 , H04W76/04 , H04W88/08 , H04W88/14 , H04W92/02 , H04B1/707 , H04J1/12
CPC分类号： H04W72/04 , H04W88/08 , H04W88/14 , H04W92/02
摘要： A system for wireless data transmission that uses a channel bandwidth, channel separation, and radio frequency power spectrum which is compatible with existing deployments of wireless voice services. The transmitted waveforms are thus compatible with existing cellular networks. However, the time domain digital coding, modulation, and power control schemes are optimized for data transmission. Existing cellular network sites can thus be used to provide a high speed service optimized for wireless data traffic without the need for new radio frequency planning, and without interfering with existing voice service deployments.
摘要翻译：用于无线数据传输的系统，其使用与现有部署的无线语音服务兼容的信道带宽，信道分离和射频功率谱。所传输的波形因此与现有的蜂窝网络兼容。然而，针对数据传输优化了时域数字编码，调制和功率控制方案。因此，现有的蜂窝网络站点可用于为无线数据业务提供优化的高速业务，而不需要新的无线电频率规划，并且不会干扰现有的语音服务部署。

5. 发明申请

WO0163781A3 REVERSE LINK INITIAL POWER SETTING 审中-公开
标题翻译：反向链路初始功率设置
公开(公告)号：WO0163781A3
公开(公告)日：2002-03-07
申请号：PCT/US0105939
申请日：2001-02-23
申请人： TANTIVY COMM INC
发明人： NELSON GEORGE RODNEY JR , PROCTOR JAMES A JR , HOFFMANN JOHN E , ROUPHAEL ANTOINE J
IPC分类号： H04B7/005 , H04B7/26 , H04L1/16 , H04L12/28 , H04L12/56 , H04Q9/00 , H04W24/00 , H04W28/04 , H04W52/24 , H04W52/50 , H04W52/54 , H04W74/04 , H04W76/02
CPC分类号： H04W52/242 , H04L1/1607 , H04L12/5602 , H04L47/14 , H04L47/26 , H04L2001/0093 , H04W24/00 , H04W52/228 , H04W52/48 , H04W52/50 , H04W74/0825 , H04W74/0858
摘要： In an illustrative embodiment of the present invention, a reference signal including pilot information is transmitted from a base station to one or multiple field units over a pilot channel. A message is also sent to the field units over a paging channel to indicate an effective radiated power level at which the reference signal is transmitted on the pilot channel. Based on a received power level of the reference signal at a field unit and the effective radiated power level of the reference signal, a forward path loss is estimated at the field unit for the forward link between the base station and field unit. Assuming the path loss in the reverse link is approximately the same as the estimated forward link path loss, the field unit can transmit a reply message in the reverse link so that the base station generally receives a message at the desired power level.
摘要翻译：在本发明的说明性实施例中，包括导频信息的参考信号通过导频信道从基站发送到一个或多个场单元。消息也通过寻呼信道发送到场单元，以指示在导频信道上发送参考信号的有效辐射功率电平。基于场单位的参考信号的接收功率电平和参考信号的有效辐射功率电平，在用于基站和场单元之间的前向链路的场单元处估计正向路径损耗。假设反向链路中的路径损耗与估计的前向链路路径损耗大致相同，则场单元可以在反向链路中发送应答消息，使得基站通常以期望功率电平接收消息。

6. 发明申请

WO0158043A2 MAINTENANCE LINK USING ACTIVE/STANDBY REQUEST CHANNELS 审中-公开
标题翻译：使用主动/待机请求通道进行维护链接
公开(公告)号：WO0158043A2
公开(公告)日：2001-08-09
申请号：PCT/US0103927
申请日：2001-02-07
申请人： TANTIVY COMM INC
发明人： NELSON G RODNEY JR , HOFFMANN JOHN E , ROUPHAEL ANTOINE J , PROCTOR JAMES A JR
IPC分类号： H04B7/26 , H04W56/00 , H04B7/00
CPC分类号： H04W56/0085 , H04B7/2637
摘要： Multiple field units in a CDMA system are synchronized for communication with a base station using shared forward and reverse link channels. In an illustrative embodiment, each field unit is assigned a time slot in a forward link channel to receive messages from the base station. Likewise, each field unit is assigned a time slot on a common reverse link channel for transmitting messages to the base station. Timing alignment and power level control among each of many field units and the base station is achieved by analyzing messages received at the base station in a corresponding time slot as transmitted by each field unit. Thereafter, a message is transmitted from the base station in a corresponding time slot to a particular field unit for adjusting its timing or power level so that future messages transmitted from the field unit are received in the appropriate time slot at the base station at a desired power level. In this way, minimal resources are deployed to maintain communication and precise synchronization between a base station and each of multiple users, minimizing collisions between field units transmitting in adjacent time slots on the reverse link. This method reduces the frequency a field unit must rely on the use of a slotted aloha random access channel according to IS-95.
摘要翻译： CDMA系统中的多个场单元被同步，以使用共享的前向和反向链路信道与基站进行通信。在说明性实施例中，每个现场单元在前向链路信道中分配时隙以从基站接收消息。类似地，每个现场单元在公共反向链路信道上分配一个时隙，用于向基站发送消息。通过在每个场单元发送的相应时隙中分析在基站处接收的消息来实现许多场单元和基站中的每一个中的定时对准和功率电平控制。此后，在对应的时隙中从基站发送消息到特定的现场单元，以调整其定时或功率电平，使得在现场单元发送的未来消息在基站的适当时隙中以期望的能量等级。以这种方式，部署最小资源以维持基站与多个用户中的每一个之间的通信和精确同步，从而最小化在反向链路上的相邻时隙中发送的现场单元之间的冲突。该方法降低了场单元必须依赖于使用根据IS-95的时隙aloha随机接入信道的频率。

7. 发明申请

WO0018034A9 POWER CONTROL PROTOCOL FOR HIGHLY VARIABLE DATA RATE REVERSE LINK OF A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于无线通信系统的高可变数据速率反向链路的功率控制协议
公开(公告)号：WO0018034A9
公开(公告)日：2000-08-10
申请号：PCT/US9920617
申请日：1999-09-09
申请人： TANTIVY COMM INC
发明人： PROCTOR JAMES A JR
IPC分类号： H04B7/005 , H04B7/26 , H04W52/04 , H04W52/08 , H04W52/14 , H04W52/28 , H04W52/50 , H04W52/58
CPC分类号： H04W52/04 , H04B7/2628 , H04W52/08 , H04W52/143 , H04W52/146 , H04W52/287 , H04W52/288 , H04W52/50 , H04W52/58
摘要： A technique for implementing closed loop power control in a Code Division Multiple Access (CDMA) type wireless system which dynamically assigns coded channels on a demand basis. The technique maintains a proper power level, even when no traffic channels are allocated, by determining a link quality metric based upon the reverse link power received. This determination is made in response to a heartbeat signal sent at a rate which is only sufficiently fast to maintain code phase lock, for example, depending upon the expected maximum rate at which the subscriber unit will travel.
摘要翻译：一种用于在码分多址（CDMA）型无线系统中实现闭环功率控制的技术，其在需求的基础上动态分配编码信道。即使没有业务信道被分配，该技术通过基于所接收的反向链路功率确定链路质量度量来维持适当的功率电平。响应于以仅仅足够快以维持代码锁相的速率发送的心跳信号进行该确定，例如，取决于订户单元将要行进的预期最大速率。

8. 发明申请

WO2004001986A2 REPEATER FOR EXTENDING RANGE OF TIME DIVISION DUPLEX COMMUNICATION SYSTEM 审中-公开
标题翻译：延长时间分区双向通信系统的范围
公开(公告)号：WO2004001986A2
公开(公告)日：2003-12-31
申请号：PCT/US0319494
申请日：2003-06-20
申请人： TANTIVY COMM INC
发明人： GAINEY KENNETH M , PROCTOR JAMES A JR , REGNIER JOHN A , HUGHES JONATHAN L , HAENGGI STEFAN , LYNCH MICHAEL J
IPC分类号： H04B20060101 , H04B7/15 , H04B
CPC分类号： H04B7/15542
摘要： 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.
摘要翻译：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。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。

9. 发明申请

WO0158027A3 PILOT SYMBOL ASSISTED MODULATION AND DEMODULATION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中的引导符号辅助调制和解调
公开(公告)号：WO0158027A3
公开(公告)日：2002-04-18
申请号：PCT/US0103302
申请日：2001-02-01
申请人： TANTIVY COMM INC , ROUPHAEL ANTOINE J , HOFFMANN JOHN E , PROCTOR JAMES A JR , NELSON GEORGE RODNEY JR
发明人： ROUPHAEL ANTOINE J , HOFFMANN JOHN E , PROCTOR JAMES A JR , NELSON GEORGE RODNEY JR
IPC分类号： H04L25/02 , H04L27/22 , H04B1/707 , H04L27/06 , H04L27/10
CPC分类号： H04L25/0228 , H04L27/22
摘要： A transmitter (10) which includes a quadrature phase shift keying (QPSK) modulator (14), and a receiver (20) which includes a pilot correlation filter (PCF) (23), a data matching filter (DMF) (22), a timing recovery mechanism, a sampler (24), and a QPSK demodulator (26) are provided in a wireless communication system. The transmitter (10) transmits a frame of data symbols and pilot symbols (frame) to a receiver in a wireless system. The QPSK modulator (14) modulates the frame. At the receiver (20), the PCF (23) recovers the pilot symbols, whereas the timing recovery mechanism tracks the timing of the pilot symbols in the frame. The DMF (22) enhances the multipath response of the received frame at known time intervals of the pilot symbols, and output a plurality of enhanced peaks. The sampler (24) samples the multipath response of the received frame at each of the enhanced peaks. The QPSK demodulator (26) demodulates the sampled frame and recovers the data symbols using QPSK demodulation based on the sampled frame.
摘要翻译：包括正交相移键控（QPSK）调制器（14）的发射机（10）和包括导频相关滤波器（PCF）（23），数据匹配滤波器（DMF）（22））的接收机（20）定时恢复机制，采样器（24）和QPSK解调器（26）设置在无线通信系统中。发射机（10）将数据符号和导频符号（帧）的帧发送到无线系统中的接收机。 QPSK调制器（14）调制该帧。在接收机（20）处，PCF（23）恢复导频符号，而定时恢复机制跟踪帧中导频符号的定时。 DMF（22）以导引符号的已知时间间隔增强接收帧的多径响应，并输出多个增强峰。采样器（24）在每个增强峰值处对接收到的帧的多路径响应进行采样。 QPSK解调器（26）解调采样帧，并使用基于采样帧的QPSK解调来恢复数据符号。

10. 发明申请

WO0051276A9 VARIABLE RATE ORTHOGONALLY CODED REVERSE LINK STRUCTURE 审中-公开
标题翻译：可变速率正交编码的反向链路结构
公开(公告)号：WO0051276A9
公开(公告)日：2001-09-07
申请号：PCT/US0003591
申请日：2000-02-11
申请人： TANTIVY COMM INC
发明人： PROCTOR JAMES A JR , HOFFMANN JOHN E , ROUPHAEL ANTOINE J
IPC分类号： H04J13/00 , H04J13/02
CPC分类号： H04J13/004 , H04J13/0022 , H04J13/10 , H04J13/102
摘要： A method and apparatus for creating non-interfering coded signals to be simultaneously transmitted over a common frequency in a wireless communication system, such as a CDMA system, at various data rates and without the use of orthogonal codes and/or orthogonal code generation techniques. The system provides cascaded arrangement of code modulations which each include a channel sequence combiner and selector. The channel sequence combiner receives an input signal and a repetitive maximum length channel sequence and combines these signals to produce a combined signal. The selector receives the input signal, the combined signal, and a repetitive strobe signal, and selects either the input signal or the combined signal to produce an encoded signal based upon a value of the repetitive strobe signal.
摘要翻译：一种用于在无线通信系统（例如CDMA系统）中以各种数据速率并且不使用正交码和/或正交码生成技术来创建要在同一频率上同时发送的非干扰编码信号的方法和设备。该系统提供了码调制的级联布置，其中每个码调制包括信道序列组合器和选择器。信道序列组合器接收输入信号和重复最大长度信道序列并组合这些信号以产生组合信号。选择器接收输入信号，组合信号和重复选通信号，并基于重复选通信号的值选择输入信号或组合信号以产生编码信号。

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