Abstract: Methods, apparatuses, electronic devices, and readable storage mediums are provided. An example electronic device includes a first radio frequency link and a second radio frequency link. The first radio frequency link includes a component configured to detect an antenna parameter. The second radio frequency link includes a tunable component. An example method includes obtaining first antenna parameter information of the first radio frequency link by using the component that is comprised in the first radio frequency link and that is configured to detect an antenna parameter. The example method further includes tuning, based on the first antenna parameter information by using the tunable component in the second radio frequency link, an antenna corresponding to the second radio frequency link.

Abstract: A modularized multifunctional variable valve actuation system for use in a six-cylinder internal combustion engine. The system includes two fuel supply modules that cooperate with two two-way two-position valves for implementing a continuously variable valve event, and that cooperate with two three-way two-position valves and one two-way two-position valve for implementing a fully variable valve event.

Abstract: A modularized multifunctional variable valve actuation system for use in a six-cylinder internal combustion engine. The system mainly comprises fuel supply modules (5 and 6), a phase limiting module (2), a mode selection module (22), control modules (3 and 4), a fuel transfer module (7), and a valve actuation module (1). The phase limiting module (2), with an extremely simple structure, implements a valve closing process not limited by operational phases of the fuel supply modules (5 and 6), and at the same time, requires only two fuel supply modules (5 and 6) and two two-way two-position valves (141, 142, and 143) to implement a continuously variable valve event, and requires only two fuel supply modules (5 and 6), two three-way two-position valves (191, 192, and 193), and one two-way two-position valve (141, 142, and 143) to implement a fully variable valve event, thus greatly reducing costs.