FRAME-BASED COMMUNICATION WITH VARIABLE RATE PAYLOAD |
|||||||
| 申请号 | PCT/US0110882 | 申请日 | 2001-04-04 | 公开(公告)号 | WO0178489A3 | 公开(公告)日 | 2002-05-23 |
| 申请人 | BROADCOM HOMENETWORKING INC; HOLLOWAY JOHN T; FRANK EDWARD H; OJARD ERIC; TRACHEWSKY JASON ALEXANDER; MALLORY TRACY D; PTASINSKI HENRY S; HAYES RAYMOND; PETERSON KEVIN H; YAMANO LARRY C; CORRY ALAN; PATTIN JAY; | 发明人 | HOLLOWAY JOHN T; FRANK EDWARD H; OJARD ERIC; TRACHEWSKY JASON ALEXANDER; MALLORY TRACY D; PTASINSKI HENRY S; HAYES RAYMOND; PETERSON KEVIN H; YAMANO LARRY C; CORRY ALAN; PATTIN JAY; | ||||
| 摘要 | A transceiver method and signal therefor embodied in a carrier wave for sending information from transmit stations to receive stations over a transmission medium of a frame-based communications network. The information is sent in transmit frames having a frame format comprising a fixed rate header, followed by a variable rate payload, followed by a fixed rate trailer. The fixed rate header includes a preamble. The preamble has a repetition of four symbol sequences for facilitating power estimation, gain control, baud frequency offset estimation, equalizer training, carrier sensing and collision detection. The preamble also includes a frame control field. The frame control field has scrambler control information for frame scrambling initialization, a priority field to determine the absolute priority a transmit frame will have when determining access to the transmission medium, a payload encoding field which determines constellation encoding of payload bits in the variable rate payload, and a header check sequence for providing a cyclic redundancy check. The variable rate payload is transmitted pursuant to dynamic adjustable frame encoding parameters for improving transmission performance for a transmit frame being transmitted from a transmitting station to a receiving station. The header also includes a destination address field, a source address field and an ethertype field. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈