公开(公告)号：WO1995028015A1

公开(公告)日：1995-10-19

申请号：PCT/US1995004029

申请日：1995-04-07

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  DENT, Paul, W.

IPC: H01Q25/00

CPC classification number: H01Q1/288 ,  H01Q25/00 ,  H04B7/2041

Abstract: A system for wireless communication between at least one first station and a plurality of second stations using a relay station is disclosed. The relay station contains, among other features, an antenna array and a multi-channel transponder. The antenna array has a plurality of antenna elements which are divided into two sets. The first set is used to provide transmission or reception using beams having a first beamwidth and the second set is used to provide transmission or reception using beams having a second beamwidth. The multi-channel transponder, which is connected to the antenna array and a feeder link antenna, receives feeder link signals from at least one of the first stations and converts the signals into drive signals for the antenna array elements. The multi-channel transponder has a first channel bandwidth for channels transponding signals for transmissions having the first beamwidth and a second channel bandwidth for channels transponding signals for transmissions having said second beamwith. The plurality of second stations is divided dynamically by a switching system into at least a first group that use the narrowest beamwidth and a second group that use the widest beamwidth, according to the path loss requirements for each group.

Abstract translation: 公开了一种使用中继站的至少一个第一站和多个第二站之间的无线通信系统。 除了其它特征之外，中继站还包含天线阵列和多信道应答器。 天线阵列具有被分成两组的多个天线元件。 第一组用于使用具有第一波束宽度的波束来提供发射或接收，并且第二组用于使用具有第二波束宽度的波束来提供发射或接收。 连接到天线阵列和馈线链路天线的多声道转发器接收来自第一站中的至少一个的馈线链路信号，并将该信号转换成天线阵列元件的驱动信号。 多信道转发器具有针对具有第一波束宽度的传输的信道的第一信道带宽和用于具有所述第二波束带宽的传输的信道的第二信道带宽。 根据每个组的路径损耗要求，多个第二站由交换系统动态划分为至少使用最窄波束宽度的第一组和使用最宽波束宽度的第二组。

公开(公告)号：WO1995026116A1

公开(公告)日：1995-09-28

申请号：PCT/US1995002464

申请日：1995-02-28

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  CHARAS, Philippe, M. ,  DENT, Paul, Wilkinson

IPC: H04Q07/36

CPC classification number: H04W16/28 ,  H01Q1/246 ,  H01Q9/0421 ,  H01Q9/0428 ,  H01Q9/0435 ,  H01Q21/065 ,  H01Q21/08 ,  H01Q21/24 ,  H04B7/06 ,  H04B7/10 ,  H04W52/0206 ,  Y02D70/1222 ,  Y02D70/442 ,  Y02D70/444

Abstract: A base station includes a radio channel generating circuit for generating a plurality of individual radio channel signals each at a different frequency from one another, and a plurality of individual phased array antennas operatively connected to the radio channel generating circuit so that each individual phased array antenna transmits only one individual radio channel signal at a time. Each of the phased array antennas preferably includes a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern. Each radiating element is readily provided by a stripline, and the substrate is preferably a circuit board. Accordingly, another feature of the base station according to the invention is that power radiated by each phased array antenna can be selectively controlled to reduce possible interference while maintaining communications with respective mobile units that are both near and far from the base station. A switch may be provided between the radio channel generating circuit and the phased array antennas to facilitate cell splitting. Method aspects for operating the base station are also disclosed.

Abstract translation: 基站包括：无线电信道产生电路，用于产生彼此不同频率的多个单独的无线电信道信号;以及可操作地连接到无线电信道发生电路的多个单独的相控阵列天线，使得每个单独的相控阵天线 一次只发送一个单独的无线电信道信号。 每个相控阵天线优选地包括基板和以预定图案安装在其上的多个辐射元件。 每个辐射元件容易由带状线提供，并且基板优选地是电路板。 因此，根据本发明的基站的另一个特征是可以选择性地控制由每个相控阵列天线辐射的功率，以减少可能的干扰，同时保持与基站相近的远端的各个移动单元的通信。 可以在无线电信道发生电路和相控阵列天线之间提供开关以便于小区分裂。 还公开了用于操作基站的方法方面。

公开(公告)号：WO1995023467A1

公开(公告)日：1995-08-31

申请号：PCT/US1995002815

申请日：1995-02-24

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  DOIRON, Timothy, J. ,  DREON, Steven, T. ,  PRIEST, Mark, D.

IPC: H04L09/14

CPC classification number: H04L9/0894 ,  H04L2209/80 ,  H04L2463/062 ,  H04W12/02 ,  H04W12/04

Abstract: A digital radio has standardized "key" storage for several different cryptosystems (DES, VGE, VGS, etc.). Cryptographic keys are stored in a table in non-volatile memory such as EEPROM. The "keys" are stored in an "encrypted" form such that their identities are not readily revealed by a "dump" of memory contents. Additional security is provided in accordance with the present invention by extracting the "keys" from the stored table and re-"encrypting" the entire table each time a key loader device is attached to the radio. Multiple key banks are used to provide enhanced voice security by increasing the number of encryption keys available for use by a radio.

Abstract translation: 数字无线电对几种不同的密码系统（DES，VGE，VGS等）进行了标准化的“密钥”存储。 加密密钥存储在诸如EEPROM的非易失性存储器的表中。 “密钥”以“加密”形式存储，使得它们的身份不容易被存储器内容的“转储”所揭示。 根据本发明，通过从存储的表中提取“密钥”并且每当将密钥加载器装置附加到无线电装置时对整个表进行“加密”，则提供附加的安全性。 多个密钥库用于通过增加可用于无线电的加密密钥的数量来提供增强的语音安全性。

公开(公告)号：WO1998032295A2

公开(公告)日：1998-07-23

申请号：PCT/US1997024029

申请日：1997-12-29

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  COOK, David, P. ,  SCHAUFERT, Eric ,  SCHMIDT, Robert, E.

IPC: H04Q07/00

CPC classification number: H04W88/06 ,  H04W16/16 ,  H04W48/18 ,  H04W84/08

Abstract: A multi-radio equipment arrangement provides mobile radio users with the ability to operate with multiple transceivers of different band splits. A preferred arrangement utilizes at least one transceiver operating on a digital "trunked RF" communications system and at least one transceiver operating on a wide-area "conventional RF" communications system. The transceivers communicate with a control unit and each other via a common bus to form a multi-radio local network. One radio is predefined as the "master" radio and is provided with a master interface task routine. The master task software manages serial communications on the multi-radio bus and also includes an auto-select control task (ASCT) routine that determines which transceiver equipment should currently be selected for providing RF communications. The ASCT also implements a radio roaming feature that automatically switches back and forth between two or more trunked communication system transceivers depending on the audio quality available on each system and a preference selected by the mobile user.

Abstract translation: 多无线电设备布置为移动无线电用户提供了使用不同频带分割的多个收发器进行操作的能力。 一种优选的方案是利用在数字“中继的”RF通信系统上工作的至少一个收发器和在广域“常规RF”通信系统上操作的至少一个收发器。 收发机通过公共总线与控制单元进行通信，形成多无线局域网。 一个无线电被预先定义为“主”无线电，并且被提供有主接口任务例程。 主任务软件管理多无线电总线上的串行通信，并且还包括自动选择控制任务（ASCT）例程，其确定当前应该选择哪个收发器设备来提供RF通信。 ASCT还实现了一种无线电漫游功能，可根据每个系统上可用的音频质量和移动用户选择的偏好自动在两个或多个集群通信系统收发器之间来回切换。

公开(公告)号：WO1998030004A1

公开(公告)日：1998-07-09

申请号：PCT/US1997024175

申请日：1997-12-23

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  JARRAD, Salah, Khalil

IPC: H04M01/00

CPC classification number: H04M1/72583 ,  G06F3/04817 ,  H04M1/72544

Abstract: A cellular phone includes a five way switch for indicating cursor movements on a display in one of four directions and for selecting an application represented by an icon on the display at which the cursor is currently placed. The phone also includes a display mode selector to allow the user to select one of two display modes. The first display mode presents icons representing applications arranged in rows and columns. The second display mode presents the icons with an associated text.

Abstract translation: 蜂窝电话包括用于在四个方向中的一个方向上指示显示器上的光标移动并用于选择由当前放置光标的显示器上的图标表示的应用的五路开关。 手机还包括显示模式选择器，以允许用户选择两种显示模式之一。 第一个显示模式显示表示以行和列排列的应用程序的图标。 第二种显示模式显示带有关联文本的图标。

公开(公告)号：WO1998028879A1

公开(公告)日：1998-07-02

申请号：PCT/US1997023507

申请日：1997-12-18

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  GESSEL, Robert, J. ,  AUTREY, Thomas, Kevin

IPC: H04L12/24

CPC classification number: H04L41/0816 ,  H04L41/145 ,  H04L41/20 ,  H04L41/22 ,  H04L43/00 ,  H04L43/0811 ,  H04L43/0817

Abstract: A network manager (10) for configuring and controlling a simulated telecommunications network having a plurality of nodes (12-19) which communicate in a plurality of communications protocols. The network manager dynamically connects and disconnects each of the plurality of nodes to the network. The network manager (10) also determines which of the plurality of communications protocols is utilized by each of the plurality of nodes, establishes connections between nodes which communicate in compatible communications protocols, and denies connections requested between nodes which communicate in incompatible communications protocols. The network manager (10) includes a Design function (25) and a Supervisory function (26). The Design function (25) sets up the network, defines nodes, defines which nodes are to operate on which workstations, and establishes connections. The Supervisory function (26) manages and operates the network. This includes launching the network, monitoring the nodes and links, and reconfiguring the network when requested. The Supervisory function (26) initiates each node, dynamically takes nodes down and brings them back up again, severs links and reinstates them, and provides an operator with status information for each node and each link in the network. A Graphical User Interface is provided for operator interaction with the network manager (10).

Abstract translation: 一种网络管理器（10），用于配置和控制具有以多个通信协议通信的多个节点（12-19）的模拟电信网络。 网络管理器动态地将多个节点中的每一个动态地连接和断开到网络。 网络管理器（10）还确定多个通信协议中的哪一个被多个节点中的每个节点利用，建立在兼容通信协议中进行通信的节点之间的连接，并且拒绝在不兼容通信协议中通信的节点之间请求的连接。 网络管理器（10）包括设计功能（25）和监督功能（26）。 设计功能（25）设置网络，定义节点，定义哪些节点要在哪些工作站上运行，并建立连接。 监控功能（26）管理和操作网络。 这包括启动网络，监控节点和链路，并在请求时重新配置网络。 监控功能（26）启动每个节点，动态地节点节点并使其重新备份，切断链路并恢复它们，并向运营商提供网络中每个节点和每个链路的状态信息。 提供图形用户界面以用于与网络管理器（10）的操作者交互。

公开(公告)号：WO1998028759A1

公开(公告)日：1998-07-02

申请号：PCT/US1997023694

申请日：1997-12-19

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  EAST, Allen, M.

IPC: H01G04/38

CPC classification number: H03J5/246 ,  H03J2200/10

Abstract: An RF capacitor circuit (10) having a plurality of capacitors and a method of electronically tuning such circuit is disclosed. The method includes the steps of connecting the capacitors (C1, C2, C3, C4, ... CN) in parallel relation so as to have common nodes (12) and electronically eliminating any number of the capacitors in order to obtain a desired total capacitance for the circuit. The method further includes either connecting a fuse (F1, F2, F3, F4, ... FN) in series relation with each capacitor, wherein each fuse has a designated current rating above which it prevents current from passing to its associated capacitor, or providing each capacitor (C1, C2, C3, C4, ... CN) with a unique breakdown voltage/current. Thus, when a voltage is provided to an input of the circuit, either the current rating of a designated number of fuses or the breakdown voltage/current of a designated number of capacitors is exceeded. Such capacitors are then electronically eliminated and the circuit is tuned to the desired total capacitance. It is prefered that the current rating of the fuses or the breakdown voltage/current of the capacitors range from a minimum value to a maximum value.

Abstract translation: 公开了具有多个电容器的RF电容器电路（10）以及电子调谐电路的方法。 该方法包括以平行关系连接电容器（C1，C2，C3，C4，... CN）以便具有公共节点（12）并电子地消除任何数量的电容器以便获得期望的总和 电路的电容。 该方法还包括与每个电容器串联连接熔丝（F1，F2，F3，F4，... FN），其中每个熔丝具有指定的电流额定值，其上方防止电流通过其相关联的电容器，或 提供具有唯一击穿电压/电流的每个电容器（C1，C2，C3，C4，... CN）。 因此，当向电路的输入端提供电压时，超过指定数量的保险丝的额定电流或指定数量的电容器的击穿电压/电流。 然后电子地消除这样的电容器，并将电路调谐到期望的总电容。 优选电容器的电流额定值或电容器的击穿电压/电流从最小值到最大值。

公开(公告)号：WO1998027617A1

公开(公告)日：1998-06-25

申请号：PCT/US1997023009

申请日：1997-12-10

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  VAN PUIJENBROEK, Cornelis, A., H., M.

IPC: H01Q21/28

CPC classification number: H04B7/10 ,  H01Q21/28

Abstract: An improved antennae configuration is disclosed that is both structurally symmetric and maximizes diversity gain through spatial displacement of antenna pairs. Individual antennae of each antenna pair are placed in adjacent and spaced-apart antennae assemblies where each antenna of an antenna pair is both horizontally and vertically displaced from its twin.

Abstract translation: 公开了改进的天线配置，其在结构上是对称的，并且通过天线对的空间位移使分集增益最大化。 每个天线对的单独天线被放置在相邻和间隔开的天线组件中，其中天线对的每个天线都与其双绞线水平和垂直位移。

公开(公告)号：WO1998026532A3

公开(公告)日：1998-06-18

申请号：PCT/US1997019988

申请日：1997-11-20

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  VIDALES, Carlos, Eduardo

IPC: H04L05/14

公开(公告)号：WO1998025383A1

公开(公告)日：1998-06-11

申请号：PCT/US1997022410

申请日：1997-12-03

Applicant: ERICSSON INC.

Inventor： ERICSSON INC. ,  BOTTOMLEY, Gregory, E. ,  DENT, Paul, W. ,  KOILPILLAI, Ravinder, D. ,  CHENNAKESHU, Sandeep

IPC: H04L25/03

CPC classification number: H04L25/03178 ,  H04L2025/0356

Abstract: A method and apparatus for demodulating data symbols transmitted through a fading communication channel. A plurality of first predetermined data symbols (11), a plurality of unknown data symbols (12), and a plurality of second predetermined data symbols (13) are sequentially received (201). The received pluralities of data symbols are stored (104, 201), and first and second set of reference symbols from the stored pluralities of first and second predetermined data symbols, respectively, are determined (108). A first block consisting of a preselected number of the stored unknown data symbols based on the first set of reference signals are forward-demodulated (154, 203), beginning with unknown symbols received nearer the first predetermined data symbols. A second block consisting of a preselected number of the stored unknown data symbols based on the second set of reference signals are backward-demodulated (155, 203), beginning with the unknown data symbols received nearer the second predetermined data symbols. Figure of Merit (FOM) values (56, 57) indicative of demodulation qualities of the forward- and backward-demodulated data symbols are determined for the two blocks and compared (153, 204) with one another. Either the forward- or backward-demodulated data symbols are selected for output as the demodulated data based on the comparison of FOM values and two new blocks are chosen and the process repeated until all the symbols are demodulated. The FOM is based upon parameters which may include signal strength information.

Abstract translation: 一种解调通过衰落通信信道发送的数据符号的方法和装置。 顺序地接收多个第一预定数据符号（11），多个未知数据符号（12）和多个第二预定数据符号（13）（201）。 接收到的多个数据符号被存储（104,201），并且分别从存储的多个第一和第二预定数据符号中分别得到第一和第二组参考符号（108）。 由基于第一组参考信号的预选数量的存储的未知数据符号组成的第一块被从第一预定数据符号附近接收的未知符号开始被前向解调（154,203）。 由基于第二组参考信号的预选数量的存储的未知数据符号组成的第二块是从接近第二预定数据符号的未知数据符号开始的反向解调（155,203）。 针对两个块确定表示前向和后向解调数据符号的解调质量的品质因数（FOM）值（56,57），并相互比较（153,204）。 选择前向或后向解调的数据符号作为基于FOM值的比较的解调数据进行输出，并且选择两个新的块，并且重复该处理，直到所有符号被解调为止。 FOM基于可能包括信号强度信息的参数。