蓝牙无线通信系统的HCI和L2CAP协议的分析与实现-信号与信息处理专业论文.docxVIP

茎坚垄王查堂堡主堂堡堕墨Abstract 茎坚垄王查堂堡主堂堡堕墨 Abstract As short—ranged wireless communications are used more and more widely nowadays．Bluetooth，which owns the merit of high security,is an inexpensive and effective solution of the short-range wireless communications．It is being applied in many aspects of daily work and life．It could be anticipated that Bluetooth will be an inevitable tool for people’S life，just as the mobile telephone acts nOW．As a telecommunication protocol，Bluetooth wireless technology ensures communication compatibility worldwide，It provides an open—standard of wireless interface and control software with a low—cost，low—power consumption solution．With industry— wide support，Bluetooth wireless technology free you from wired connections— enabling links between mobile computers，mobile phones，portable handheld devices．And connectivity to the Internet．Bluetooth uses the same 2．4GHz． frequency band as 802．1lb does for wireless communication．It can now support the transmission speed of 1Mbps for data and voice．The Bluetooth Specification developed by SIG difines rules for implementation Bluetooth in almost all the aspects．It includes two parts：Core Specification and Profile． Firstly the paper makes a survey of the development of Bluetooth technology in the internal and the external，explains charactoristic and applications of Bluetooth， points out the purpose and significance of developing Bluetooth application． Secondly,based on the SIG Bluetooth specification versionl．1，it analyses the whole framwork of specification of Bluetooth technology and the contents of the Bluetooth protocol stack．expatiates the Host Controller Interface(HCl)and Logical Link Control and Adaptation Protocol Specification(L2CAP)．About HCI protocol，this paper expatiates the format of the commands，events and data，and provides a practical illustration for every type．The process of initializing Bluetooth equipment，inquiring and requesting create a connection to other Bluetooth equipments，d