Abstract: The present invention provides a data transmission method and system, and a device. The method includes: sending, by a secondary base station, an identifier of a first physical uplink control channel PUCCH code channel resource to a primary base station at a first moment, the primary base station determines to receive, by using the first PUCCH code channel resource, a feedback that is on a first data block; sending, by the secondary base station, the identifier of the first PUCCH code channel resource and the first data block to the UE at a second moment; and receiving, by the secondary base station, the feedback from the primary base station, where the feedback is received by the primary base station from the UE by using the first PUCCH code channel resource.

Abstract: The present invention provides a data transmission method and system, and a device. The method includes: sending, by a secondary base station, an identifier of a first physical uplink control channel PUCCH code channel resource to a primary base station at a first moment, the primary base station determines to receive, by using the first PUCCH code channel resource, a feedback that is on a first data block; sending, by the secondary base station, the identifier of the first PUCCH code channel resource and the first data block to the UE at a second moment; and receiving, by the secondary base station, the feedback from the primary base station, where the feedback is received by the primary base station from the UE by using the first PUCCH code channel resource.

Abstract: The present invention discloses an application management method and apparatus, which relate to the field of mobile communications technologies, address a defect in the prior art that a network cannot learn about a local application, and achieves control over the local application. Specific embodiments of the present invention include: after a message, sent by an application server, of a local application is received, the message of the local application is processed according to a stored management policy of the local application, and a result of the processing is sent to the application server. According to a difference of received messages of a local application and a difference of stored corresponding management policies of the local application, application management is performed in different implementations in the embodiment of the present invention. Technical solutions of the present invention are mainly applied to an application management process.