Group 1 - The core point of the article is that Beijing Xiaomi Mobile Software Co., Ltd. has obtained a patent for a method and device related to CFR, with the patent number CN114009111B, applied for on September 2021 [1] - Beijing Xiaomi Mobile Software Co., Ltd. was established in 2012 and is primarily engaged in software and information technology services, with a registered capital of 148.8 million RMB [1] - The company has made investments in 4 enterprises, participated in 150 bidding projects, and holds 5000 patent information records, along with 123 administrative licenses [1]