公开(公告)号：US07266141B2

公开(公告)日：2007-09-04

申请号：US10199424

申请日：2002-07-19

申请人： Chris J. Goodings

发明人： Chris J. Goodings

IPC分类号： H04B1/713

CPC分类号： H04B1/7143 ,  H04B2001/7154 ,  H04B2001/71563

摘要： A hybrid data frame is presented for a time division multiple access frequency hopping communications system. The frame includes uplink and downlink subframes, and each subframe includes a plurality of frequency hops. First frequency hops in each subframe have at least one time slot, and the first hops follow default non-adaptive frequency hopping patterns, such that unsynchronized communicating units can synchronize with the communications system during the first hops using the predetermined default pattern. The second frequency hop also includes at least one time slot, and employs an adaptive frequency hopping pattern. Once a communicating unit is synchronized to the communications system via the first frequency hop, it can be assigned to a time slot within the second hop and adaptive frequency hopping interference avoidance techniques can be implemented.

摘要翻译： 提出了一种用于时分多址跳频通信系统的混合数据帧。 帧包括上行链路和下行链路子帧，并且每个子帧包括多个跳频。 每个子帧中的第一跳频具有至少一个时隙，并且第一跳跟随默认的非自适应跳频模式，使得不同步的通信单元可以在使用预定默认模式的第一跳期间与通信系统同步。 第二跳频还包括至少一个时隙，并采用自适应跳频模式。 一旦通信单元经由第一跳频与通信系统同步，则可将其分配给第二跳中的时隙，并且可以实现自适应跳频干扰避免技术。

公开(公告)号：US07359343B2

公开(公告)日：2008-04-15

申请号：US10035073

申请日：2001-12-28

申请人： Chris J. Goodings

发明人： Chris J. Goodings

IPC分类号： G08C17/00 ,  H04L1/02

CPC分类号： H04L1/0061 ,  H04B1/715 ,  H04B7/2615 ,  H04L1/0001 ,  H04L1/0045 ,  H04L1/04 ,  H04L1/08 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/449

摘要： A time division duplex digital radio frame structure with time and frequency diversity and method for use thereof is presented. Each packet of data is transmitted twice in successive frequency hops, such that the redundant transmission differs in both time and frequency from the primary transmission. A communications system employing the frame structure may be configured to dynamically shift between fully diverse, asynchronous and non-diverse modes of operation. The mode of operation may be selected based upon one or more operating parameters, such as battery power or detected interference. When error correction is implemented and a primary transmission is received without error, system devices may de-power circuitry to reduce power consumption.

摘要翻译： 提出了具有时间和频率分集的时分双工数字无线电帧结构及其使用方法。 每个数据包在连续的跳频中被发送两次，使得冗余传输在时间和频率上都不同于主传输。 采用帧结构的通信系统可以被配置为在完全不同的，异步的和非多种的操作模式之间动态地移动。 可以基于一个或多个操作参数（例如电池功率或检测到的干扰）来选择操作模式。 当实现纠错并且接收到无错误的主要传输时，系统设备可以对电路进行去电以降低功耗。

公开(公告)号：US07020119B2

公开(公告)日：2006-03-28

申请号：US10059568

申请日：2002-01-29

申请人： Chris J. Goodings ,  Sukhdeep Hundal ,  Guy Supajet Pothiboon

发明人： Chris J. Goodings ,  Sukhdeep Hundal ,  Guy Supajet Pothiboon

IPC分类号： H04Q7/24

CPC分类号： H04L1/0061 ,  H04L1/16 ,  H04L1/1809 ,  H04L1/1854 ,  H04L1/1877 ,  H04L2001/125 ,  H04M1/725 ,  H04M1/72505 ,  H04M1/72519 ,  H04M2250/02 ,  H04W8/26 ,  H04W28/06 ,  H04W84/18 ,  H04W92/18

摘要： A cordless telephone implementing using a BLUETOOTH wireless bearer is presented. A BLUETOOTH voice data structure is implemented by coding the voice data at a bitrate below 64 kb/s, such that the full number of payload bits provided by the BLUETOOTH voice data structure are not required for transmission of voice data. The packet payload is then encoded in a non-standard format to implement a robust error detection and/or correction protocol for the voice data, as well as for the provision of a low-rate data channel for transmission of information such as caller ID. Alternatively, a BLUETOOTH non-voice data structure can be employed by transmitting encoded voice data as user payload bits. The data link is then flushed each time new voice data is ready for sending by the transmitting device. If slots are available before the data link is flushed, unsuccessfully transmitted data can be automatically resent, thereby implementing time and frequency diversity.

摘要翻译： 提出了使用蓝牙无线承载实现的无绳电话。 BLUETOOTH语音数据结构通过以低于64kb / s的比特率对语音数据进行编码来实现，使得由蓝牙语音数据结构提供的全部数量的有效负载比特不需要传输语音数据。 分组有效载荷然后以非标准格式编码，以实现用于语音数据的鲁棒的错误检测和/或校正协议，以及用于提供用于传送诸如呼叫者ID的信息的低速率数据信道。 或者，可以通过发送编码的语音数据作为用户有效载荷比特来采用蓝牙非语音数据结构。 每当新的语音数据准备好发送设备发送时，数据链路就被刷新。 如果数据链路被刷新之前，如果插槽可用，则会自动重新发送成功发送的数据，从而实现时间和频率的分集。

公开(公告)号：US06912260B2

公开(公告)日：2005-06-28

申请号：US10205459

申请日：2002-07-25

申请人： Matthew Young ,  Chris J. Goodings

发明人： Matthew Young ,  Chris J. Goodings

IPC分类号： H03L7/085 ,  H03L7/091 ,  H03L7/181 ,  H04B7/26 ,  H04J3/06 ,  H04L7/033 ,  H04M1/725 ,  H04L7/04

CPC分类号： H04W56/0035 ,  H03L7/085 ,  H03L7/091 ,  H03L7/181 ,  H04B7/2675 ,  H04J3/062 ,  H04L7/033 ,  H04M1/725

摘要： An apparatus for synchronizing the system clocks of wireless devices in a digital communications system is presented. A digital phase-locked loop is employed. The phase-locked loop may include a counter which is incremented by a local device system clock and latched by a frame synchronization marker received from a remote device, whereby the counter output comprises a feed forward signal. The phase-locked loop may alternatively include a counter that reflects the level of data stored in receive and/or transmit FIFO buffers. The loop output signal controls the frequency of the system clock oscillator.

摘要翻译： 提出了一种用于在数字通信系统中同步无线设备的系统时钟的装置。 采用数字锁相环。 锁相环可以包括由本地设备系统时钟增加并由从远程设备接收的帧同步标记锁存的计数器，由此计数器输出包括前馈信号。 可选地，锁相环包括反映存储在接收和/或发送FIFO缓冲器中的数据电平的计数器。 环路输出信号控制系统时钟振荡器的频率。