公开(公告)号：US20220180351A1

公开(公告)日：2022-06-09

申请号：US17438346

申请日：2020-03-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yun ZHOU ,  Yongwei WANG ,  Xiang LI ,  Hongjian WANG

IPC: G06Q20/32 ,  G06K7/14 ,  G06K7/10

Abstract: This application provides a communications system (100) for automatically selecting an NFC emulation card, which includes an NFC card reader (102) and an electronic device (101). The NFC card reader (102) sends third query information which includes first identification information and a service type of an emulation card. The electronic device (101) determines whether a first emulation card exists. When determining that the first emulation card exists, the electronic device (101) determines whether a second emulation card exists. When determining that the second emulation card exists, the electronic device (101) sends fourth response information which carries second identification information. The NFC card reader (102) sends card selection instruction information. The electronic device (101) receives the card selection instruction information, and sends card selection response information. By using the foregoing technical solution, the electronic device (101) can automatically select a corresponding emulation card, thereby improving NFC payment efficiency.