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公开(公告)号：US10212634B2
公开(公告)日：2019-02-19
申请号：US15099086
申请日：2016-04-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaobo Wu , Guangwei Wang , Guobao Xi , Chao Sun , Xinyong Wang
Abstract: A communication method includes: sending, by an MME, a bearer setup request message to an eNodeB, where the bearer setup request message is used to instruct the eNodeB to set up a voice bearer for user equipment; and when the MME receives a bearer setup failure message sent by the eNodeB in response to the bearer setup request message, sending, by the MME, an indication message to the user equipment, where the indication message is used to indicate that a voice over VoIMS of the user equipment is unavailable. When setup of a voice bearer of a VoLTE call fails, the user equipment is notified that a VoLTE is unavailable, so that the user equipment can be prevented from continuing attempting to initiate the VoLTE call and exacerbating cell congestion.
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公开(公告)号：US20250014976A1
公开(公告)日：2025-01-09
申请号：US18889286
申请日：2024-09-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yilu Liu , Xiaojun Wang , Guangwei Wang , Xiaodong Cong , Taotao Zhang
Abstract: A chip system includes a BGA chip, a PCB, a signal source module, and a detection module. A function pin of the BGA chip is soldered to a function solder pad of the PCB by a first solder ball and a detection pin of the BGA chip is soldered to a detection solder pad of the PCB by a second solder ball. A designed life of the second solder ball is shorter than a designed life of the first solder ball. A detection path is formed between the BGA chip and the PCB and includes the second solder ball. The signal source module is configured to send a detection signal to the detection module through the detection path to determine a status of the detection path based on the received detection signal.
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