US 11,057,855 B2
Method of detecting access address of Bluetooth signal to which channel coding is applied and Bluetooth apparatus thereof
Ki Tae Moon, Seoul (KR); Sang Young Chu, Bucheon-si (KR); and Suk Kyun Hong, Seoul (KR)
Assigned to ABOV Semiconductor co., Ltd., Cheongju-si (KR)
Filed by ABOV Semiconductor co., Ltd., Cheongju-si (KR)
Filed on Oct. 10, 2018, as Appl. No. 16/156,999.
Claims priority of application No. 10-2017-0157993 (KR), filed on Nov. 24, 2017.
Prior Publication US 2019/0166573 A1, May 30, 2019
Int. Cl. H04W 56/00 (2009.01); H04W 4/70 (2018.01); H04L 7/04 (2006.01); H04L 27/26 (2006.01)
CPC H04W 56/0035 (2013.01) [H04L 7/041 (2013.01); H04L 7/042 (2013.01); H04L 27/2656 (2013.01); H04W 4/70 (2018.02); H04W 56/004 (2013.01)] 4 Claims
OG exemplary drawing
 
3. A Bluetooth apparatus for detecting an access address of a Bluetooth signal to which channel coding is applied, the Bluetooth apparatus comprising:
a radio frequency (RF) receiver configured to receive the Bluetooth signal; and
an access address start detector configured to:
perform initial signal processing in a unit of a specific length for a first preamble part within a preamble section of the Bluetooth signal;
perform, in a unit of the specific length, channel decoding for a second preamble part remained after the first preamble part within the preamble section, wherein the channel decoding starts at the middle of the preamble section;
extract a correlation value in a bit unit with a preset access address from an output of the channel decoding; and
determine that a valid access address is detected when the correlation value exceeds a threshold value,
wherein the specific length is a bit pattern length of a bitstream which is repeated in the preamble section or a length of a bitstream input for the channel decoding, and
wherein the channel decoding performed on the second preamble part is performed before the extracting of the correlation value.