System and method for wireless communication of glucose data

Abstract

Systems, devices, and methods are disclosed for wireless communication of analyte data. One such method includes, during a first interval, establishing a first connection between an analyte sensor system and a display device. During the first connection, the method includes exchanging information related to authentication between the analyte sensor system and the display device. The method includes making a determination regarding whether authentication was performed during the first interval. During a second interval, the method may include establishing a second connection between the analyte sensor system and the display device for transmission of an encrypted analyte value, and bypassing the exchanging of information related to authentication performed during the first connection. The method also includes, during the second interval, the analyte sensor system transmitting the encrypted analyte value to the display device, if the determination indicates that the authentication was performed during the first interval.

What is claimed is: 
     
         1 . A method for wireless communication of analyte data, the method comprising:
 establishing a first connection between an analyte sensor system and a first display device, in order to exchange pairing information between the analyte sensor system and the first display device;   maintaining the first connection by periodically exchanging messages between the analyte sensor system and the first display device; and   while the analyte sensor system and the display device remain connected, the analyte sensor system transmitting the analyte data to the first display device, upon the analyte data becoming available for transmission.   
     
     
         2 . The method of  claim 1 , wherein establishing the first connection comprises performing a two-way authentication between the analyte sensor system and the first display device. 
     
     
         3 . The method of  claim 2 , wherein performing the two-way authentication comprises:
 the analyte sensor system transmitting a first value to the first display device;   the analyte sensor system receiving from the first display device a second value and a third value, wherein the second value is based on the first value and an application key;   the analyte sensor system validating the second value;   the analyte sensor system generating a fourth value using the third value; and   the analyte sensor system transmitting the fourth value to the first display device for validation.   
     
     
         4 . The method of  claim 1 , wherein the combination of periodically exchanging messages and transmitting the analyte data to the first display device, upon the analyte data becoming available for transmission, is done responsive to an indication of a user preference for the first display device. 
     
     
         5 . The method of  claim 1 , wherein the combination of periodically exchanging messages and transmitting the analyte data to the display device, upon the analyte data becoming available for transmission, is done adaptively. 
     
     
         6 . The method of  claim 1 , wherein the messages exchanged periodically between the analyte sensor system and the first display device comprise a first message and a second message, the first and second messages being configured for sequential exchange; and wherein the first message comprises a messaging interval corresponding to a scheduled amount of time between the sequential exchange of the first message and second messages. 
     
     
         7 . The method of  claim 1 , wherein each of the messages exchanged periodically between the analyte sensor system and the first display device comprises a message interval corresponding to an amount of time until a successive message is to be exchanged. 
     
     
         8 . The method of  claim 7 , further comprising sending a request to modify the message interval. 
     
     
         9 . The method of  claim 8 , further comprising terminating the analyte sensor system periodically exchanging messages with the first display device, such that the analyte sensor system and the display device do not remain connected, responsive to the request being denied. 
     
     
         10 . The method of  claim 1 , wherein each of the messages exchanged periodically between the analyte sensor system and the first display device comprises a timeout value, and wherein the method further comprises terminating the analyte sensor system periodically exchanging messages with the first display device, such that the analyte sensor system and the first display device do not remain connected, if the timeout value included in a first message of the messages is exceeded before a second message of the messages successive to the first message is exchanged. 
     
     
         11 . The analyte sensor system of  claim 1 , wherein the processor is further configured to cause the analyte sensor system to:
 establish the first connection and exchange the information related to authentication using a first wireless protocol; and   transmit the encrypted analyte data using a second wireless protocol;   wherein the first wireless protocol allows bypassing, during the second interval, the exchange of information related to authentication.   
     
     
         12 . The method of  claim 1 , further comprising:
 the first display device establishing a second connection with a second display device such that the first display device and the second display device remain connected; and   while the first and second display devices remain connected, the first display device transmitting information related to the analyte data to the second display device, after receiving the analyte data from the analyte sensor system.   
     
     
         13 . A method for wireless communication of analyte data, the method comprising:
 establishing a first connection between an analyte sensor system and a first display device, in order to exchange pairing information between the analyte sensor system and the first display device;   operating in a first mode, comprising:
 the analyte sensor system periodically exchanging messages with the first display device such that the analyte sensor system and the first display device remain connected; and 
 while the analyte sensor system and the first display device remain connected, the analyte sensor system transmitting the analyte data to the first display device, upon the analyte data becoming available for transmission; and 
   operating in a second mode, comprising:
 periodically establishing a second connection between the analyte sensor system and the first display device; and 
 after the second connection has been established, transmitting the analyte data to the first display device. 
   
     
     
         14 . The method of  claim 13 , wherein operating in the first mode occurs responsive to an indication related to one or more of:
 user input regarding a use preference for the first display device;   time of day;   location;   packet loss; and   a priority scheme that includes the first display device.   
     
     
         15 . The method of  claim 13 , wherein operating in the second mode occurs if the analyte sensor system is transmitting analyte data and is not operating in the first mode. 
     
     
         16 . The method of  claim 13 , wherein, while operating in the first mode, the analyte sensor system transmitting the analyte data to the first display device comprises the analyte sensor system transmitting the analyte data to a second display device that is not connected to analyte sensor system. 
     
     
         17 . The method of  claim 13 , further comprising switching between operating in the first mode and operating in the second mode. 
     
     
         18 . A system, comprising:
 a first display device;   an analyte sensor system, comprising:
 a transceiver configured to transmit and receive wireless signals; and 
 a processor operatively coupled to the analyte sensor and the transceiver and configured to cause the analyte sensor system to:
 establish a first connection between the analyte sensor system and the first display device, in order to exchange pairing information between the analyte sensor system and the first display device; 
 maintain the first connection by periodically exchanging messages between the analyte sensor system and the first display device; and 
 during the first connection, transmit the analyte data to the first display device, upon the analyte data becoming available for transmission; 
 
   a second display device;   wherein the first display device is configured to:
 establish a second connection with the second display device such that the first and second display devices remain connected; and 
 while the first and second display devices remain connected, transmit information related to the analyte data to the second display device, after receiving the analyte data from the analyte sensor system.