公开(公告)号：US20040203371A1

公开(公告)日：2004-10-14

申请号：US10265676

申请日：2002-10-08

Applicant: HEWLETT PACKARD COMPANY

Inventor： Weng Wah Loh ,  John Deryk Waters

IPC: H04B005/00 ,  H04B017/00

CPC classification number: H04L1/0061 ,  H04W84/18

Abstract: Devices of a Bluetooth wireless communication system are adapted to include an L2CAP extension layer that calculates error control data for each packet of payload data. An error control data packet is transmitted immediately following each packet of payload data. The L2CAP extension layer checks incoming payload data packets using the associated error control data, to determine transmission errors such as caused by radio-frequency interference. A preferred example uses 32-bit Ethernet to generate an error control checksum, providing robust error checking for a high integrity transmission link such as between a computing device and a printer.

Abstract translation: 蓝牙无线通信系统的设备适于包括L2CAP扩展层，其计算每个有效载荷数据分组的错误控制数据。 在每个有效载荷数据包之后立即发送错误控制数据包。 L2CAP扩展层使用相关的错误控制数据检查传入的有效载荷数据包，以确定由射频干扰引起的传输错误。 优选的示例使用32位以太网来生成错误控制校验和，为诸如计算设备和打印机之间的高完整性传输链路提供鲁棒的错误检查。