Link Management Protocol. 1.1. Link Management Protocol (LMP) 1.1.1. Mcl.cs.byu.edu/downloads/IrDA_Assisted_BT_Discovery.pdf. Bluetooth Tutorial. This is the most comprehensive part of the Bluetooth protocol and one which is most important. This tutorial page touches the different aspects of baseband only very briefly. For more information on the subject in context, please click More .. on the right side wherever the link is provided. Baseband is the physical layer of the Bluetooth which manages physical channels and links apart from other services like error correction, data whitening, hop selection and Bluetooth security. Baseband lies on top of Bluetooth radio in Bluetooth stack and essentially acts as a link controller and works with link manager for carrying out link level routines like link connection and power control. Baseband also manages asynchronous and synchronous links, handles packets and does paging and inquiry to access and inquire the Bluetooth devices.