公开(公告)号：US20020101839A1

公开(公告)日：2002-08-01

申请号：US09775304

申请日：2001-02-01

Applicant: Tantivy Communications, Inc.

Inventor： Kevin L. Farley ,  James A. Proctor JR.

IPC: H04Q007/00 ,  H04J003/16

CPC classification number: H04L5/0055 ,  H04L1/1854 ,  H04W72/0446 ,  H04W76/10 ,  H04W80/10

Abstract: In an illustrative embodiment of the present invention, a channel is allocated to carry messages from each of multiple subscriber units to a base station. Selected messages generated by a subscriber unit that would otherwise be transmitted over an assigned reverse link traffic channel are instead encoded and transmitted to the base station over a shared reverse link channel. Preferably, the shared reverse link channel is time-slotted and each subscriber unit transmits information to the base station in an assigned time slot so that the base station receiving the messages can identify from which subscriber unit a message is sent. Certain bits in a time slot of the shared channel as set by a subscriber unit can be used to communicate a particular message to the base station. For instance, a single bit that is transmitted in a time slot can be encoded to transmit a substitute message from one of the multiple subscriber units to a base station, where the setting of the bit itself indicates a message type.

Abstract translation: 在本发明的说明性实施例中，分配一个信道以将来自多个用户单元中的每一个的消息传送到基站。 由订户单元生成的否则将通过分配的反向链路业务信道发送的所选择的消息被编码并通过共享反向链路信道发送到基站。 优选地，共享反向链路信道是时隙的，并且每个用户单元在分配的时隙中向基站发送信息，使得接收消息的基站可以从哪个订户单元识别发送消息。 可以使用由用户单元设置的共享信道的时隙中的某些比特来将特定消息传送到基站。 例如，可以编码在时隙中发送的单个比特以将替代消息从多个用户单元之一发送到基站，其中比特本身的设置表示消息类型。

公开(公告)号：US20020080742A1

公开(公告)日：2002-06-27

申请号：US09997732

申请日：2001-11-29

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04B007/216

CPC classification number: H04W56/00 ,  H04B7/2668 ,  H04J13/18 ,  H04L1/0007 ,  H04L1/165 ,  H04L1/1809 ,  H04L25/14 ,  H04Q11/0428 ,  H04Q2213/13098 ,  H04Q2213/13202 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/13216 ,  H04Q2213/1327 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  H04Q2213/1336 ,  H04Q2213/13389 ,  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, time and power synchronism while maintaining optimal timing control over synchronization messages. This in turn allows fast acquisition of additional reverse link capacity as needed by allocating additional orthogonal codes within the same code phase and by varying the spreading factor of the codes, as well as by adding additional code phases.

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保持同步，时间和功率同步，同时保持对同步消息的最佳定时控制。 这又允许通过在相同码相中分配附加正交码并通过改变码的扩展因子以及通过添加附加码相位来快速获取额外的反向链路容量。

公开(公告)号：US20020008672A1

公开(公告)日：2002-01-24

申请号：US09859001

申请日：2001-05-16

Applicant: Tantivy Communications, Inc.

Inventor： Griffin K. Gothard ,  Alton S. Keel JR. ,  Christopher A. Snyder ,  Bing Chiang ,  Joe T. Richeson ,  Douglas H. Wood ,  James A. Proctor JR. ,  Kenneth M. Gainey

IPC: H01Q021/00

CPC classification number: H01Q3/446 ,  H01Q1/246 ,  H01Q3/2605

Abstract: An antenna apparatus which can increase capacity in a cellular communication system. The antenna operates in conjunction with a mobile subscriber unit and provides a plurality of antenna elements. At least one active antenna element is active and essentially centrally located within multiple passive antenna elements. The passive antenna elements are coupled to selectable impedance components. Through proper control of the passive antenna elements, the cellular communication system directs an antenna beam pattern toward an antenna tower of a base station to maximize gain, and, consequently, signal-to-noise ratio. Thus, optimum reception is achieved during, for example, an idle mode which receives a pilot signal. The antenna array creates a beamformer for signals to be transmitted from the mobile subscriber unit, and a directional receiving array to more optimally detect and receive signals transmitted from the base station. By directionally receiving and transmitting signals, multipath fading is greatly reduced as well as intercell interference. Various techniques for determining the proper phase of each antenna element are accommodated.

Abstract translation: 一种能增加蜂窝通信系统容量的天线装置。 天线与移动用户单元结合操作并提供多个天线元件。 至少一个有源天线元件是有源的，并且基本上居中地位于多个无源天线元件内。 无源天线元件耦合到可选阻抗元件。 通过对无源天线元件的适当控制，蜂窝通信系统将天线波束图案引向基站的天线塔，以使增益最大化，从而使信噪比更高。 因此，在例如接收导频信号的空闲模式期间实现最佳接收。 天线阵列创建用于从移动用户单元发送的信号的波束形成器，以及用于更好地检测和接收从基站发送的信号的定向接收阵列。 通过定向接收和发送信号，多径衰落大大降低以及小区间干扰。 适用于确定每个天线元件的适当相位的各种技术。

公开(公告)号：US20010036200A1

公开(公告)日：2001-11-01

申请号：US09778474

申请日：2001-02-07

Applicant: Tantivy Communications, Inc.

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

IPC: H04J003/06

CPC classification number: H04W56/0005 ,  H04B7/2668 ,  H04W56/0045 ,  H04W56/005

Abstract: Multiple field units in a CDMA system are synchronized for communication with a base station using a shared forward and reverse link channel. 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 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 from each field unit. Thereafter, a message is transmitted in a corresponding time slot to a particular field unit from the base station for adjusting its timing so that future messages transmitted from the field unit are received in the appropriate time slot at the base station. 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.

Abstract translation: 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。 每个现场单元在前向链路信道中分配一个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。 通过在每个场单元的相应时隙中分析在基站处接收的消息来实现多个场单元和基站中的每一个的定时对准。 此后，在相应的时隙中将消息从基站发送到特定的现场单元，以调整其定时，从而在基站的适当的时隙中接收从现场单元发送的未来消息。 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。

公开(公告)号：US20040180696A1

公开(公告)日：2004-09-16

申请号：US10767326

申请日：2004-01-29

Applicant: Tantivy Communications, Inc.

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

IPC: H04M001/00

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, with the digital signals being communicated in frames using a radio frequency channel via Code Division Multiple Access (CDMA) modulated radio signals. The base station includes a wireless transceiver for establishing a communication session over a digital communication path, and a bandwidth management module connected to the wireless transceiver for allocating a code channel within the radio frequency channel for the digital communication path to exchange digital signals during the communication session. The bandwidth management module also divides a current frame of digital signals into subframes to be transmitted within the code channel. The wireless transceiver transmits the subframes over the digital communication path, and receives feedback over the digital communication path on the subframes received with errors. The bandwidth management module adjusts a size of each subframe received with errors to a more efficient subframe size to be retransmitted over the digital communication path.

Abstract translation: 基站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在帧中传送。 基站包括用于在数字通信路径上建立通信会话的无线收发器，以及连接到无线收发器的带宽管理模块，用于在数字通信路径内分配用于数字通信路径的代码信道以在通信期间交换数字信号 会话 带宽管理模块还将当前的数字信号帧划分为要在码信道内发送的子帧。 无线收发器通过数字通信路径发送子帧，并且通过数字通信路径接收到具有错误的子帧的反馈。 带宽管理模块将通过错误接收的每个子帧的大小调整为通过数字通信路径重传的更有效的子帧大小。

公开(公告)号：US20030227880A1

公开(公告)日：2003-12-11

申请号：US10166576

申请日：2002-06-10

Applicant: Tantivy Communications, Inc.

Inventor： Howard A. Heller ,  James A. Proctor JR.

IPC: H04Q007/00

CPC classification number: H04L47/10 ,  H04L47/14 ,  H04L47/2441 ,  H04W28/10 ,  H04W72/12 ,  H04W76/11

Abstract: Session services are employed in a networked computing environment to apply specific processing to an exchange of data between processes. In a wireless communication network, a single wireless link is typically shared among multiple users through wireless channels, which are allocated and switched among the users on a demand basis. Packets sent over the wireless link need to be signaled and tagged accordingly to initiate and employ the session service for the intended packets which comprise the flow. A method for identifying and applying session services to a wireless link includes identifying a packet flow over the wireless link corresponding to a received message by employing a flow identifier and filter. The packet flow corresponds to a session, and is mapped to at least one session service. The mapped session service is then applied to the received message. A session service may therefore be transparently applied to a packet flow over a wireless link independently of the other packet flows which may also be transmitted over the wireless link.

Abstract translation: 在网络计算环境中采用会话服务，以将特定处理应用到进程之间的数据交换。 在无线通信网络中，单个无线链路通常通过无线信道在多个用户之间共享，无线信道在用户需求的基础上被分配和切换。 要通过无线链路发送的数据包需要相应的信号和标记，以启动和应用构成流的预期数据包的会话服务。 用于识别和应用会话服务到无线链路的方法包括通过采用流标识符和过滤器来识别对应于接收到的消息的无线链路上的分组流。 分组流对应于会话，并被映射到至少一个会话服务。 然后将映射的会话服务应用于接收到的消息。 因此，会话服务可以透明地应用于无线链路上的分组流，独立于也可以通过无线链路传输的其他分组流。

公开(公告)号：US20030146880A1

公开(公告)日：2003-08-07

申请号：US10234036

申请日：2002-08-30

Applicant: Tantivy Communications, Inc.

Inventor： Bing Chiang ,  Kenneth M. Gainey ,  James A. Proctor JR.

IPC: H01Q021/00 ,  H01Q001/50

CPC classification number: H01Q1/246 ,  H01Q3/26 ,  H01Q3/36 ,  H01Q3/46 ,  H01Q21/0018 ,  H01Q21/30 ,  H01Q25/00 ,  H04B7/0617 ,  H04B7/086

Abstract: A directive antenna having plural antenna elements is arranged in a parasitic antenna array. Frequency selective components are connected to a first subset of the antenna elements. Weighting structures are connected to a second subset of the antenna elements. The first and second subsets of antenna elements may be connected by a space-fed power distribution system to produce independently steerable beams having spectrally separated signals.

Abstract translation: 具有多个天线元件的定向天线布置在寄生天线阵列中。 频率选择分量连接到天线元件的第一子集。 加权结构连接到天线元件的第二子集。 天线元件的第一和第二子集可以通过空间馈电的配电系统连接，以产生具有光谱分离信号的独立的可导向的光束。

公开(公告)号：US20030095517A1

公开(公告)日：2003-05-22

申请号：US10171378

申请日：2002-06-12

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR.

IPC: H04Q007/00

CPC classification number: H04Q11/04 ,  H04B1/7075 ,  H04J13/0077 ,  H04J13/16 ,  H04L1/0007 ,  H04L1/1809 ,  H04L5/0007 ,  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 ,  H04W28/04 ,  H04W28/18 ,  H04W72/0446 ,  H04W74/004 ,  H04W74/04 ,  H04W74/0833 ,  H04W84/14

Abstract: A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or nullcontrol holdnull state) versus a request state (i.e., nullrequest to changenull state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1xEV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.

Abstract translation: 通信系统通过在给定的时间帧内进行至少两个请求的肯定标识来改善检测具有改变通信状态的请求的指示的信号的性能。 该系统可以通过对于非请求状态（即，稳态或“控制保持”状态）相对于请求状态（即，“改变请求”）的功率电平的差异来进一步提高性能。 在一个特定应用中，基站以相当高的检测概率确定改变通信状态的请求，并且具有相当低的错误检测概率。 该系统具有减少的错误通信状态的数量，例如错误的业务信道分配。 该检测技术与1xEV-DV系统和I-CDMA系统兼容，但一般足以支持采用有线和无线通信系统中使用的各种其他通信协议的系统。

公开(公告)号：US20030035466A1

公开(公告)日：2003-02-20

申请号：US10196569

申请日：2002-07-15

Applicant: Tantivy Communications, Inc.

Inventor： James A. Proctor JR. ,  Pertti O. Alapuranen

IPC: H04B001/69

CPC classification number: H04J3/0635 ,  H04B1/707 ,  H04B1/7077 ,  H04J13/0022 ,  H04J13/18 ,  H04L7/043 ,  H04W72/0446

Abstract: A technique for allowing a first and second group of users to share access to a communication channel such as a wireless radio channel is disclosed. The first group of users can be a group of legacy users such as those that use digital CDMA cellular telephone equipment based on the IS-95 standard. The second group of users can be a group of web surfers that code their transmissions using one of multiple formats. The first group of users can share one modulation structure such as, on a reverse link, using unique phase offsets of a common pseudorandom noise (PN) code. The second group of users can share another modulation structure, but in a manner that is consistent and compatible with the users of the first group. Specifically, the users of the second group may all use the same PN code and code phase offset. Each channel used by the second group of users can be uniquely identified by a corresponding unique orthogonal code.

公开(公告)号：US20020101301A1

公开(公告)日：2002-08-01

申请号：US09774534

申请日：2001-01-31

Applicant: Tantivy Communications, Inc.

Inventor： Bing Chiang ,  James A. Proctor JR. ,  Kenneth M. Gainey

IPC: H01P001/18

CPC classification number: H01P1/185

Abstract: A varactor based phase shifter that increases phase shift range using a lower characteristic impedance between quadrature ports than is used at its input/output ports. The circuit makes use of a four port coupler arrangement that imbeds a quarter wave impedance transformation between the input port and the quadrature ports as well as between the quadrature ports and the output port. The characteristic impedance across the quadrature ports is therefore less than the characteristic impedance across the input and output ports. In one implementation, reducing a characteristic input/output impedance of 50 to a 20 ohm quadrature port impedance results in a phase shift range increase of more than 50%.

Abstract translation: 基于变容二极管的移相器，使用正交端口之间的较低特性阻抗比在其输入/输出端口使用的相位移范围更大。 该电路利用四端口耦合器布置，其在输入端口和正交端口之间以及正交端口和输出端口之间嵌入四分之一波阻抗变换。 因此，正交端口之间的特性阻抗小于输入和输出端口上的特性阻抗。 在一个实现中，将特性输入/输出阻抗降低到20欧姆正交端口阻抗导致相移范围增加超过50％。