Patent ID: 11917507
Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. A method for feedback information transmission between vehicle to everything (V2X) devices, applied to a second V2X device, the method comprising:
receiving first user data from a first V2X device;
acquiring time window offset information indicating an offset duration between a low boundary or an upper boundary of a feedback time window for the first user data and an end time of the first user data transmission;
determining the feedback time window for the first user data based on the time window offset information and the end time of the first user data transmission; and
transmitting hybrid automatic repeat request (HARQ) feedback information for the first user data to the first V2X device in the feedback time window for the first user data,
wherein acquiring the time window offset information further comprises:
acquiring the time window offset information that is preset or is preconfigured by a base station;
acquiring the time window offset information that corresponds to a service type of the first user data;
acquiring the time window offset information that corresponds to a subcarrier spacing of a time-frequency resource for the first user data; or
acquiring offset indication information carried in scheduling control information for the first user data, and acquiring the time window offset information indicated by the offset indication information.