Patent ID: 11917598
Assignee: XIDIAN UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The method of claim 5, further comprising:
receiving, by the user equipment, data on the second frequency band;
calculating a receiving power and a signal interference noise ratio (SINR of a reference signal by using the data received on the second frequency band, and feeding back the receiving power and the SINR of the reference signal to the base station;
comparing, by the base station, the receiving power and the SINR of the reference signal with a switching threshold, before an interval for transmitting the detection signal reaches 200 ms; and
in the event that the current data transmission frequency band is the second frequency band, taking either of the following actions:
if any one of the receiving power and the SINR of the reference signal is smaller than the switching threshold, switching to the first frequency band, the current data transmission frequency band from the second frequency band, or the cooperative transmission of the first frequency band with the second frequency band; or
if both the receiving power and the SINR of the reference signal are not smaller than the switching threshold, maintaining the current data transmission frequency band unchanged.