公开(公告)号：US06876651B1

公开(公告)日：2005-04-05

申请号：US09666446

申请日：2000-09-21

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H03L7/06 ,  H04J3/06 ,  H04Q11/00

CPC分类号： H03L7/06 ,  H04J3/0685 ,  H04Q2213/13098 ,  H04Q2213/13214 ,  H04Q2213/13322 ,  H04Q2213/1336

摘要： A parallel cascaded set of transceivers using phase locked loops comprises a PCM communication link therebetween. At a first transceiver station, a primary framer receives an incoming signal. The primary framer extracts a payload signal and a clock signal and splits both. One clock signal is directed to the phase locked loop and the other clock signal is directed to a downstream transceiver. In this manner, start up delay and error introduction are reduced.

摘要翻译： 使用锁相环的并联级联收发器集合包括它们之间的PCM通信链路。 在第一收发台，主成帧器接收输入信号。 主成帧器提取有效载荷信号和时钟信号，并分裂两者。 一个时钟信号指向锁相环，另一个时钟信号被引导到下游收发器。 以这种方式，减少启动延迟和错误的介绍。

公开(公告)号：US06628968B1

公开(公告)日：2003-09-30

申请号：US09704927

申请日：2000-11-02

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H04B138

CPC分类号： H04J3/0688 ,  H04L7/0008 ,  H04W56/00

摘要： A method and apparatus for supplying a timing signal from a central unit to at least one radio head connected to the central unit via a communications link. The central unit transmits a downlink signal to the radio head(s) via the communications link based on a transmit clock supplied via a clock selector within the central unit. In a first mode, the clock selector supplies a clock signal derived from a network downlink signal received at the central unit, such as from a MSC, as the transmit clock. However, in response to the loss of the network downlink signal, a second mode is entered wherein the clock selector instead supplies a clock signal derived from an uplink clock signal generated by the radio head, such as by a PLL therein, as the transmit clock. Thus, the central unit may supply a reference clock signal to the radio head even when the network downlink signal is temporarily lost.

摘要翻译： 一种用于经由通信链路将定时信号从中央单元提供给连接到中央单元的至少一个无线电头的方法和装置。 中央单元基于经由中央单元内的时钟选择器提供的发送时钟经由通信链路向无线电头发送下行链路信号。 在第一模式中，时钟选择器提供从中央单元（例如从MSC）接收的网络下行链路信号导出的时钟信号作为发送时钟。 然而，响应于网络下行链路信号的丢失，进入第二模式，其中时钟选择器替代地提供从由无线电头产生的上行链路时钟信号导出的时钟信号，例如通过其中的PLL作为传输时钟 。 因此，即使当网络下行链路信号被暂时丢失时，中央单元也可以向无线电头提供参考时钟信号。

公开(公告)号：US07046721B2

公开(公告)日：2006-05-16

申请号：US09812763

申请日：2001-03-20

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H04B1/38

CPC分类号： H04L5/16

摘要： A method and apparatus encodes data on a clock pulse signal by phase modulating a clock pulse signal by introducing a sinusoidal jitter modulation to the clock pulse signal to selectively introduce intentional jitter at clock pulse transitions, wherein the sinusoidal jitter has selectable jitter frequencies each having a given amplitude. This is followed by a data signal which may include additional data that has an encoded format of binary ones and zeros, such that the appearance of the binary one in the data signal causes the phase modulation of the clock pulse signal by the selection of one of the jitter frequencies of a given amplitude. The appearance of a binary zero causes the selection of another frequency of a given amplitude to thereby modulate the clock pulse signal resulting in a phase modulated clock pulse signal that includes the encoded data in the data or additional signal.

公开(公告)号：US06810270B1

公开(公告)日：2004-10-26

申请号：US09705093

申请日：2000-11-02

申请人： Ossi Ilari Grohn ,  Anthony Salvatore Fugaro ,  Michael Francis Marlborough

发明人： Ossi Ilari Grohn ,  Anthony Salvatore Fugaro ,  Michael Francis Marlborough

IPC分类号： H04B138

CPC分类号： H04J3/0647

摘要： A method and apparatus for supplying a timing signal from a central unit to at least one radio head connected to the central unit via a communications link. An external signal, typically generated by a MSC, is received at a first framer of the central unit and the first framer generates a reference clock signal based thereon. This reference clock signal is used as the transmit clock for a second framer, known as the radio head framer. The radio head framer transmits a radio head downlink signal to the radio head(s) via the communications link. The radio head downlink signal typically includes payload information and an associated timing reference signal, typically in the form of an embedded clock signal. This timing reference signal of the downlink is based on the reference clock signal from the first framer, rather than being based on a clock signal from an oscillator within the central unit. The transceivers within the radio head(s) may then control their RF transmissions using the timing reference signal from the radio head framer of the central unit. Accordingly, the radio head(s) are provided with a timing reference signal that is based relatively directly on the signal from the MSC.

摘要翻译： 一种用于经由通信链路将定时信号从中央单元提供给连接到中央单元的至少一个无线电头的方法和装置。 通常由MSC产生的外部信号在中央单元的第一成帧器处被接收，并且第一成帧器基于此产生参考时钟信号。 该参考时钟信号被用作第二成帧器的发射时钟，称为无线电头部成帧器。 无线电头成帧器经由通信链路将无线电头下行链路信号发送到无线电头。 无线电头下行信号通常包括有效载荷信息和相关联的定时参考信号，通常以嵌入式时钟信号的形式。 下行链路的该定时参考信号基于来自第一成帧器的参考时钟信号，而不是基于来自中央单元内的振荡器的时钟信号。 无线电头内的收发器然后可以使用来自中央单元的无线电头部成帧器的定时参考信号来控制其RF传输。 因此，无线电头具有相对直接基于来自MSC的信号的定时参考信号。

公开(公告)号：US06925072B1

公开(公告)日：2005-08-02

申请号：US09631474

申请日：2000-08-03

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H04B7/26 ,  H04J3/00 ,  H04L12/43

CPC分类号： H04B7/2656

摘要： A system and method for sending control information between a control unit and at least one of a plurality of cascaded units (CU) connected via a time-multiplexed communications link comprises generating an information message of a predetermined length at a message generator including a CU identifier value and control information, where the CU identifier value corresponds to a designated CU. The information message is sent to a current CU using the time multiplexed communications link. The information message is processed at the current CU, including determining whether the CU identifier value matches the identity of the current CU where the information message is a downlink message.

摘要翻译： 用于在控制单元与通过时分复用通信链路连接的多个级联单元（CU）中的至少一个之间发送控制信息的系统和方法包括在包括CU标识符的消息发生器处生成预定长度的信息消息 值和控制信息，其中CU标识符值对应于指定的CU。 使用时间复用通信链路将信息消息发送到当前CU。 信息消息在当前CU处理，包括确定CU标识符值是否与当前CU的标识匹配，其中信息消息是下行链路消息。

公开(公告)号：US06754198B1

公开(公告)日：2004-06-22

申请号：US09696994

申请日：2000-10-26

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H04Q724

CPC分类号： H04W92/20 ,  H04W88/085

摘要： The interconnection topology of a serial data communications bus allows for efficient communications within a wireless communications network. A wide-area wireless mobile communications system comprises a MSC connected to a plurality of base stations via a serial communications bus and a first serial port having a first connection order. Each base station also connects to the serial communications bus via a second serial port having an opposite connection order. In one mode, the MSC communicates with each base station over the serial bus through the first serial port. In a second mode, each base station can communicate directly with any other base station over the serial bus, with one base station utilizing the first serial port, and the other base station utilizing the second serial port. The invention is also applicable to a limited-area wireless communications system.

摘要翻译： 串行数据通信总线的互连拓扑允许无线通信网络内的有效通信。 广域无线移动通信系统包括经由串行通信总线连接到多个基站的MSC和具有第一连接顺序的第一串行端口。 每个基站还通过具有相反连接顺序的第二串行端口连接到串行通信总线。 在一种模式中，MSC通过串行总线通过第一串行端口与每个基站进行通信。 在第二模式中，每个基站可以通过串行总线与任何其他基站直接通信，一个基站利用第一串行端口，另一个基站利用第二串行端口。 本发明也适用于有限区域无线通信系统。

公开(公告)号：US06622005B1

公开(公告)日：2003-09-16

申请号：US09517966

申请日：2000-03-03

申请人： Ossi Ilari Grohn

发明人： Ossi Ilari Grohn

IPC分类号： H04B160

CPC分类号： H04Q3/0087 ,  H04W4/12 ,  H04W8/26 ,  H04W24/00 ,  H04W48/08

摘要： A Performance Report Message or other message is received from a first device at a second device. The received message is revised such that a value of a Terminal Endpoint Identifier field in the message is revised according to a predetermined transformation, e.g., by incrementing the value in the Terminal Endpoint Identifier field. The revised message is then transmitted from the second device to a third device. The first, second and third devices may comprise devices of a wireless communications network, such as radio heads and/or a control part (COP). The message is preferably received over a first T1 link connecting the first and second devices, and the revised message is preferably transmitted over a second T1 link connecting the second and third devices. The revised message may be received at the third device, the revised value of the Terminal Endpoint Identifier field of the received revised message recovered, and a communications link and/or device to which the revised message pertains identified based on the recovered revised value of the Terminal Endpoint Identifier field, preferably in conjunction with a value in a Command/Response field in the received revised message.

摘要翻译： 在第二设备处从第一设备接收到性能报告消息或其他消息。 修改接收到的消息，使得消息中的终端终端标识符字段的值根据预定变换被修改，例如通过递增终端端点标识符字段中的值。 修改的消息然后从第二设备发送到第三设备。 第一，第二和第三设备可以包括无线通信网络的设备，诸如无线电头和/或控制部分（COP）。 该消息优选地通过连接第一和第二设备的第一T1链路接收，并且经修改的消息优选地通过连接第二和第三设备的第二T1链路传输。 可以在第三设备处接收修改的消息，恢复接收到的修改消息的终端端点标识符字段的修改值，以及修改的消息所基于的通信链路和/或设备基于恢复的修订值 终端终端标识符字段，优选地与接收到的修改消息中的命令/响应字段中的值相结合。