Huawei has developed many product lines, such as optical network, fixed network, wireless network, core network and so on.
The area of each product line is different. For example, wireless is mainly in Shanghai and Xi 'an, and only a small part is in Beijing and Shenzhen.
You need to know where your product line is before you know if there is any possibility of transfer.
According to my feeling, generally speaking, it takes at least 1 year to transfer, provided that you are doing well in the company and the leader is willing to help you transfer.
There used to be an employee in the graduate school of our department, and his wife was in Shenzhen. Then another Shenzhen employee in the department lives in Suzhou and wants to go to graduate school. So the two men changed, and the leader agreed.
In short, everything is based on the premise that it cannot affect the business of the department.