公开(公告)号：US11357015B2

公开(公告)日：2022-06-07

申请号：US16228200

申请日：2018-12-20

Applicant: QUALCOMM Incorporated

Inventor： Cheol Hee Park ,  Ashish Shankar Iyer ,  Arvind Vardarajan Santhanam ,  Hongsan Sheng ,  Subramanya Rao ,  Feng Lu ,  Santosh Kumar Rongala ,  Li Sheng ,  Yuanbo Wang

IPC: H04W72/08 ,  H04W24/08 ,  H04W4/40 ,  H04L43/16 ,  H04B17/318 ,  H04W72/04

Abstract: Aspects of the present disclosure implement techniques that allow a vehicle performing V2X communications to provide more accurate S-RSSI measurements and CBR calculations for use in channel selection and congestion control. Techniques may include measuring a sidelink received signal strength indicator (S-RSSI) for each of a plurality of sub-channels, determining one or more signal impairment adjustment factors based on the S-RSSI for each of the plurality of sub-channels, calculating a channel busy ratio (CBR) for the plurality of sub-channels based on the one or more signal impairment adjustment factors, and initiating communication with at least one of the plurality of sub-channels based on at least the CBR.