US 12,445,411 B2
DNS query method and device
Huazhang Lv, Dongguan (CN); Xiaobo Wu, Dongguan (CN); and Xiaowan Ke, Dongguan (CN)
Assigned to VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed by VIVO MOBILE COMMUNICATION CO., LTD., Guangdong (CN)
Filed on Jan. 19, 2024, as Appl. No. 18/417,441.
Application 18/417,441 is a continuation of application No. PCT/CN2022/106813, filed on Jul. 20, 2022.
Claims priority of application No. 202110821650.2 (CN), filed on Jul. 20, 2021.
Prior Publication US 2024/0163246 A1, May 16, 2024
Int. Cl. H04L 61/4511 (2022.01); H04L 61/4552 (2022.01)
CPC H04L 61/4511 (2022.05) [H04L 61/4552 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A domain name server (DNS) query method, wherein the method comprises:
receiving, by a first communication device, a DNS query to obtain a fully qualified domain name (FQDN);
sending, by the first communication device, first information to a second communication device, wherein the first information comprises the FQDN or N server Internet protocol (IP) addresses corresponding to the FQDN, and N is a positive integer;
obtaining, by the first communication device, N pieces of server experience information from the second communication device, wherein one piece of server experience information corresponds to one server IP address of the FQDN, and each piece of server experience information is used to indicate service experience of a server corresponding to a respective corresponding server IP address; and
sending, by the first communication device, a DNS response to a terminal based on the server experience information.