公开(公告)号：US06999446B2

公开(公告)日：2006-02-14

申请号：US10039514

申请日：2001-10-26

申请人： Eric K. Hall ,  Thomas R. Giallorenzi ,  Richard B. Ertel ,  Lee A. Butterfield ,  Dan M. Griffin ,  Philip L. Stephenson

发明人： Eric K. Hall ,  Thomas R. Giallorenzi ,  Richard B. Ertel ,  Lee A. Butterfield ,  Dan M. Griffin ,  Philip L. Stephenson

IPC分类号： H04J3/24

CPC分类号： H04W16/12 ,  H01Q1/246 ,  H01Q21/205 ,  H04B1/707 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04B2201/709709 ,  H04J13/0074 ,  H04L1/0003 ,  H04L1/0009 ,  H04W16/02

摘要： A method is disclosed for operating a wireless communications system, such as a DS-CDMA communications system, by transmitting a waveform that includes a plurality of repeating frames each having x header training base symbols in a header training symbol field (TH) and y tail training base symbols in a tail training symbol field (TT). The frame is received and functions as one of a plurality of different types of frames depending on the content of at least TT. In the preferred embodiment the frame functions as one of a normal traffic frame, a termination frame, or a legacy frame providing backwards compatibility with another waveform. A given one of the frames includes four equal-size data fields separated by three equal-sized control fields, the header training symbol field (TH) and the tail training symbol field (TT).

公开(公告)号：US07190683B2

公开(公告)日：2007-03-13

申请号：US09829360

申请日：2001-04-09

申请人： Thomas R. Giallorenzi ,  Eric K. Hall ,  Richard B. Ertel ,  Philip L. Stephenson ,  Dan M. Griffin ,  Lee A. Butterfield

发明人： Thomas R. Giallorenzi ,  Eric K. Hall ,  Richard B. Ertel ,  Philip L. Stephenson ,  Dan M. Griffin ,  Lee A. Butterfield

IPC分类号： H04B7/216 ,  H04B7/208 ,  H04J13/00 ,  H04J1/00 ,  H04L27/00

CPC分类号： H04B7/2634 ,  H04B7/2621

摘要： A communications system employs the use of both synchronous CDMA and FDMA to provide a variable bandwidth waveform with multiple bonded transmitters and receivers that are agile in both frequency and PN code to permit a variable bandwidth and variable rate multiple access system. In a first aspect the teachings provide the use of both CDMA and FDMA together to enable an improved concentration efficiency by making a larger pool of bandwidth available to each user. In a second aspect these teachings enable channel bonding across both code space and frequency space, thus making the system capable of operating within a variable (not necessarily contiguous) bandwidth and at a finely variable rate.

摘要翻译： 通信系统采用同步CDMA和FDMA两者来提供具有灵活的频率和PN码的多个绑定发射机和接收机的可变带宽波形，以允许可变带宽和可变速率多址接入系统。 在第一方面，该教导提供了CDMA和FDMA两者的使用，以通过使更大的带宽池可用于每个用户来实现改进的集中效率。 在第二方面，这些教导使得能够跨代码空间和频率空间进行通道绑定，从而使系统能够在可变（不一定是连续的）带宽内以可变速率运行。

公开(公告)号：US07054286B2

公开(公告)日：2006-05-30

申请号：US09829092

申请日：2001-04-09

申请人： Richard B. Ertel ,  Eric K. Hall ,  Thomas R. Giallorenzi ,  Philip L. Stephenson ,  Johnny M. Harris ,  Edward P. Newren

发明人： Richard B. Ertel ,  Eric K. Hall ,  Thomas R. Giallorenzi ,  Philip L. Stephenson ,  Johnny M. Harris ,  Edward P. Newren

IPC分类号： H04Q7/00

CPC分类号： H04J13/16 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/0466

摘要： This invention provides a highly flexible multiplexing scheme for Direct Sequence CDMA systems enabling the CDMA system to flexibly allocate CDMA channel resources between packet-switched broadcast channels and fast-circuit-switched dedicated channels in order to optimize system throughput. A method and system are provided for operating a communication system. The method has steps of: flexibly allocating CDMA channel resources between packet-switched broadcast channels and fast-circuit-switched dedicated channels in order to optimize system throughput, and employing a side channel as required to send all or a part of a total amount of data, depending on the total amount of the data. A bandwidth allocation scheme allocates a set of CDMA channels for burst packet-switched channels, and data is time division multiplexed over the set of burst CDMA channels providing a wide bandwidth data pipe for packet-switched data. Subscriber stations are equipped with multiple CDMA channel receivers tuned to the burst CDMA channels.

摘要翻译： 本发明为直接序列CDMA系统提供了高度灵活的复用方案，使得CDMA系统能够在分组交换广播信道和快速电路交换专用信道之间灵活地分配CDMA信道资源，以优化系统吞吐量。 提供了一种操作通信系统的方法和系统。 该方法具有以下步骤：在分组交换广播信道和快速电路交换专用信道之间灵活地分配CDMA信道资源，以便优化系统吞吐量，并且根据需要采用侧信道来发送全部或部分总数 数据，取决于数据的总量。 带宽分配方案为突发分组交换信道分配一组CDMA信道，并且通过提供用于分组交换数据的宽带宽数据管道的突发CDMA信道集合对数据进行时分复用。 用户站配备有被调谐到突发CDMA信道的多个CDMA信道接收机。