US 12,231,486 B2
File repair method and file repair device for user equipment
Zhenxin Yang, Xi'an (CN); and Chunmiao Jiang, Xi'an (CN)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on May 21, 2024, as Appl. No. 18/670,049.
Application 18/670,049 is a continuation of application No. 17/818,765, filed on Aug. 10, 2022, granted, now 12,021,920.
Claims priority of application No. 202111570594.6 (CN), filed on Dec. 21, 2021.
Prior Publication US 2024/0305686 A1, Sep. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 67/06 (2022.01); G06F 11/14 (2006.01); H04L 65/611 (2022.01); H04L 67/141 (2022.01)
CPC H04L 67/06 (2013.01) [G06F 11/1435 (2013.01); H04L 65/611 (2022.05); H04L 67/141 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A file repair device for a first user equipment (UE) configured to receive a target file multicasted by a network side in a file download transmission (FDT) manner, the device comprising:
a receiving circuit configured to receive multicast attempt repair requests for the target file transmitted by UEs including the first UE, wherein the multicast attempt repair requests are received during a Back-off time for a current session;
a decision circuit configured to perform statistics on the received multicast attempt repair requests for the target file to determine whether to perform multicast repair on the target file before a second time period expires, wherein the second time period is less than a time period of a Back-off time of a current session; and
a transmitting circuit configured to transmit a feedback message to the UEs in a multicast area if it is determined to perform the multicast repair on the target file, wherein the feedback message instructs the first UE to perform the multicast repair on the target file, wherein the multicast attempt repair requests are received during a Back-off time for a current session.