If the technical scheme in the patent you apply for later (the patent you are about to apply for) depends on the technical scheme in the earlier application (the invention patent you have applied for), and there is no existing technology to replace the related technology, you need to specify the technical scheme of the earlier application in the technical scheme of the later application, or refer to the patent file of the earlier application in the specification of the application file of the later application.
If the document of the earlier application is cited, please note that if the patent of the earlier application has been published, the publication number of the published text can be directly cited. If the documents of the earlier application have not been published, the application number of the earlier application may be quoted if the applicants of the earlier application and the later application are the same.