IMPROVED BEEP ON BAD DATA FEATURE FOR POCSAG PAGING PROTOCOL
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-Jun-06
The current Beep on Bad Data feature will warn pager users if errored data is received, hut not if a page is terminated due to errors. To decide if a message has errors, an error detection algorithm is run on the POCSAG data blocks. If errors are found, the message is marked as errored. If two errored POCSAG blocks are received in a row, the page is terminated, but not marked as errored. The pager can not tell the difference between the trans- mitter turning off at the end of a page, and noise that causes two consecutive blocks to contain errors. In the latter case, a page will be truncated and not marked as errored.