2results about How to "Avoid the Ping-Pong Effect" patented technology

The perception-assisted predictive handover method in the high-speed railway tunnel scene of the application belongs to the technical field of wireless communication and intelligent transportation, and the steps include: constructing a bistatic communication and perception integrated architecture, establishing a communication and perception signal model considering double selective channels, deducing a lower bound of Cramer-Rao based on joint time delay-Doppler parameter estimation to establish a perception-assisted location prediction model, designing a three-state predictive handover mechanism based on perception information, and proposing a perception-assisted dual deep Q network algorithm, jointly optimizing handover decision, clamp antenna configuration and power allocation. By integrating perception capability into handover decision, the application realizes predictive switching before signal degradation, significantly improving the handover success rate and communication throughput in the high-speed railway tunnel scene.

The present application discloses a method and apparatus in a node used for wireless communication. A first node receives a first reference signal group; when one of a first condition or a second condition is met, a first signal is sent. The first signal is used to determine a first reference signal; a measurement of the first reference signal group is used to determine whether the first condition and the second condition are met; the first condition includes that the value of the first counter is not less than a first threshold and less than a second threshold, and the second condition includes that the value of the first counter is not less than the second threshold; the first threshold is less than the second threshold; when the first condition is met, the first reference signal belongs to a first reference signal subset; when the second condition is met, the first reference signal belongs to a second reference signal subset. The above method realizes fast cross-cell beam switching, avoiding the ping-pong effect while ensuring the quality of service.