Analyte monitoring system and methods

A receiver unit of a glucose monitoring system, comprising:

• a receiver and antenna for wirelessly communicating with a remote transmitter unit electrically and communicatively coupled with a glucose sensor comprising a plurality of electrodes including a working electrode and a reference electrode, wherein the glucose sensor is configured to be positioned with a first portion of the glucose sensor above a skin layer of the user and a second portion of the glucose sensor implanted transcutaneously below the skin layer of the user and in contact with a bodily fluid of the user, wherein the glucose sensor is configured to generate data signals associated with a glucose level of the bodily fluid, wherein the remote transmitter unit is in a proximity of the receiver unit;
• one or more processors, a display, and a memory operatively coupled to the one or more processors for storing instructions which, when executed by the one or more processors:
• access a transmitter key uniquely associated with the remote transmitter unit;
• transmit, via the receiver and antenna, a command to the remote transmitter unit after verifying the transmitter key;
• receive, via the receiver and antenna and subsequent to the command, one or more communication packets from the remote transmitter unit, each communication packet comprising a first data segment and a second data segment, wherein the first data segment comprises data signals indicative of the glucose level of the bodily fluid, and the second data segment comprises information corresponding to a remaining life of the remote transmitter unit;
• estimate a remaining life of the remote transmitter unit based on the received information corresponding to the remaining life of the remote transmitter unit;
• process the data signals indicative of the glucose level of the bodily fluid received from the remote transmitter unit;
• and
• output the estimated remaining life of the remote transmitter unit and the processed data signals for display.