Method, communication device and communication system

A communication device comprising:

• a memory;
• and
• a processor coupled to the memory and configured to
• perform a first communication between the base station and a terminal device, wherein a first portion of data stored in a storage device coupled to the base station is transmitted to the terminal device in the first communication,
• acquire first information and second information from the terminal device, wherein the first information indicates a first reception intensity of a first signal transmitted from the base station, the second information indicates a second reception intensity of a second signal transmitted from another base station, and the first information and the second information are determined by the terminal device,
• transmit a second portion of the data from the storage device to another storage device coupled to another base station based on a determination to transfer the second portion of the data,
• determine whether to change a communication destination of the first communication of the terminal device from the base station to the another base station based on the first information and the second information, and
• change the communication destination of the first communication of the terminal device from the base station to the another base station after the data is transmitted from the storage device to the another storage device, wherein
• the another base station transmits at least a segment of the second portion of the data from the another storage device to the terminal device after the communication destination is changed from the base station to the another base station.

A communication system comprising:

• a first base station;
• and
• a second base station, wherein
• the first base station performs a first communication between the first base station and a terminal device, wherein a first portion of data stored in a first storage device coupled to the first base station is transmitted to the terminal device in the first communication,
• the first base station acquires first information and second information from the terminal device, wherein the first information indicates a first reception intensity of a first signal transmitted from the first base station, the second information indicates a second reception intensity of a second signal transmitted from the second base station, and the first information and the second information are determined by the terminal device,
• the first base station transmits a second portion of the data from the first storage device to a second storage device coupled to the second base station based on a determination to transfer the second portion of the data,
• the first base station determines whether to change a communication destination of the first communication of the terminal device from the first base station to the second base station based on the first information and the second information,
• the first base station changes the communication destination of the first communication of the terminal device from the first base station to the second base station after the data is transmitted from the first storage device to the second storage device, and
• the second base station transmits at least a segment of the second portion of the data from the second storage device to the terminal device after the communication destination is changed from the first base station to the second base station.