公开(公告)号：US08023557B2

公开(公告)日：2011-09-20

申请号：US11968105

申请日：2007-12-31

申请人： Nicolas Constantinidis ,  Guillaume Crinon ,  Alexandre Rouxel ,  Alan Westwick ,  Gary Franzosa ,  Didier Gallais ,  Marty Lynn Pflum

发明人： Nicolas Constantinidis ,  Guillaume Crinon ,  Alexandre Rouxel ,  Alan Westwick ,  Gary Franzosa ,  Didier Gallais ,  Marty Lynn Pflum

IPC分类号： H04B1/38 ,  H04B1/16 ,  H04L23/00

CPC分类号： H04W52/028 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

摘要： A method is disclosed for controlling the operation of a low power radio platform that realizes the physical layer (PHY) with a software portion and an analog front end, the analog front end disposed between the DSP and an antenna, and realizes the MAC layer with a microcontroller unit (MCU). The DSP, analog front end and MCU are maintained in a low power mode of operation when not in data communication. When data communication is initiated, a hardware controller controls at least one hardware interface disposed between the DSP and the analog front end to initiate multiple time based tasks to transfer data to and from a buffer. During the execution of these tasks, the controller causes a task in the DSP to be initiated for processing of data in the buffers and, upon completion of at least one of the tasks, notifying the MCU of such. The controller controls the hardware interface to terminate operation when predetermined time based events have occurred. The MCU in at least one mode of operation thereof is operable to initiate the operation of the hardware controller and then convert to a low power mode of operation to await notification.

摘要翻译： 公开了一种用于控制利用软件部分和模拟前端实现物理层（PHY）的低功率无线电平台的操作的方法，模拟前端设置在DSP和天线之间，并且实现MAC层与 微控制器单元（MCU）。 DSP，模拟前端和MCU在不进行数据通信时，都处于低功耗操作模式。 当数据通信发起时，硬件控制器控制至少一个配置在DSP和模拟前端之间的硬件接口，以启动多个基于时间的任务，以将数据传送到缓冲器和从缓冲器传输数据。 在执行这些任务期间，控制器使得DSP中的任务被启动以处理缓冲器中的数据，并且在完成至少一个任务时通知MCU。 当发生预定的基于时间的事件时，控制器控制硬件接口终止操作。 MCU中的至少一种操作模式可操作以启动硬件控制器的操作，然后转换为低功率操作模式以等待通知。

公开(公告)号：US08050313B2

公开(公告)日：2011-11-01

申请号：US11968113

申请日：2007-12-31

申请人： Nicolas Constantinidis ,  Guillaume Crinon ,  Alexandre Rouxel ,  Alan Westwick ,  Gary Franzosa

发明人： Nicolas Constantinidis ,  Guillaume Crinon ,  Alexandre Rouxel ,  Alan Westwick ,  Gary Franzosa

IPC分类号： H04B1/38 ,  H04B1/16

CPC分类号： H04B1/707 ,  H04B1/69 ,  H04B2201/70709

摘要： A single chip radio platform is disclosed for communicating with an RF channel. An RF front end is provided having a receive/transmit capability to receive an RF carrier modulated with digital data and convert the data to analog baseband data, and modulate an RF carrier with baseband data. A digital signal processor (DSP) engine is provided for interfacing with the RF front end to form in conjunction therewith the PHY layer, and interfacing with the MAC layer to demodulate the baseband data and in the transmit mode to generate the baseband data for modulation and transmission by the RF front end. A microcontroller unit (MCU) is provided for performing the functionality of the MAC, network and application layers and interfacing with the DSP. Clock circuitry is provided including a stable reference clock for generating a first fixed clock for providing MCU clocks for the operation of the MCU, and for providing a reference for a local oscillator at substantially the channel frequency for use by the RF front end and a DSP clock for use by the DSP, both the MCU clocks, the local oscillator and the DSP clock having the stability of the first fixed clock. Periodic power management circuitry is provided for controlling the operation of the radio platform to operate in a sleep.

摘要翻译： 公开了用于与RF信道通信的单芯片无线电平台。 提供RF前端，其具有接收/发射能力，以接收利用数字数据调制的RF载波，并将数据转换为模拟基带数据，并用基带数据调制RF载波。 提供数字信号处理器（DSP）引擎，用于与RF前端接口以与其结合形成PHY层，并与MAC层接口以解调基带数据，并在发送模式下生成用于调制的基带数据， 由射频前端传输。 提供了一个微控制器单元（MCU），用于执行MAC，网络和应用层的功能，并与DSP接口。 提供时钟电路，包括用于产生用于为MCU的操作提供MCU时钟的第一固定时钟的稳定参考时钟，以及为基本上由RF前端和DSP使用的信道频率的本地振荡器提供参考 时钟由DSP使用，MCU时钟，本地振荡器和DSP时钟均具有第一个固定时钟的稳定性。 提供了周期性电源管理电路，用于控制无线电平台在睡眠中操作的操作。