Wireless communication device including one or more SIMs and method of operation thereof

• Main Authors: VINOGRADOV DENIS, HAN DONGGU, TIWARI GAURAV KUMAR, CHAMPANE, HASSIT, JAGADESHBHAI, GUO RUNGEN, KINI, APARNA, SATISH, SONG, GYUNG JIN, LIM SEUNG AH, BAEK IN-HO, CHOI KI-SOO, NOH JI-HOON, PARK KYUN-IL
• Format: Patent
• Language: Chinese; English
• Published: 17.10.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

A wireless communication device including one or more SIMs and a method of operating the same are provided. The operation method includes performing a first call with a first device using a first SIM, the first call based on a first RAT; receiving a connection request for a second call from a second device using a second SIM, the connection request for the second call based on the first RAT; determining whether the first SIM is used to perform a handover to a second RAT for the first call; in response to determining that the first SIM is used to perform the handover to the second RAT, performing the handover of the first call to the second RAT; and concurrently performing the second call and the first call after performing the handover to the second RAT of the first call, the first call being performed using the first SIM, the first RAT comprising at least one of VoLTE or VoNR, and the second RAT comprising VoWiFi. 提供了包括一个或多个SIM的无线通信装置及其操作方法。所述操作方法包括：使用第一SIM执行与第一装置的第一呼叫，第一呼叫基于第一RAT；使用第二SIM从第二装置接收用于第二呼叫的连接请求，用