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

Claim 9:
10. The method of claim 5, further comprising:
transmitting, by the base station, the detection signal on the second frequency band again, when the transmission interval of the detection signal reaches 200 ms;
calculating, by the user equipment, a channel line of sight (LOSS/no-line of sight (NLOS) information about the second frequency band, receiving power of the detection signal RP″″ and SINR″″ of the detection signal, by using the currently received detection signals, and
feeding back the detection information via the first frequency band;
wherein, the receiving power RP″″ and SINR″″ of the detection signal are calculated with the following formulas:

RP″″=PRS″″*PathLoss″″, and

SINR″″=S″″/(I″″+N″″),, where, PRS″″ is a linear average of powers transmitted by all resource elements RE contained in the detection signals within a system reception bandwidth of the second frequency band when the interval for transmitting the detection signal reaches 200 ms and the detection signal is retransmitted;
PathLoss″″ is a path loss between the base station and the user equipment when the interval for transmitting the detection signal reaches 200 ms and the detection signal is retransmitted;
S″″ is a detection signal power when the interval for transmitting the detection signal reaches 200 ms and the detection signal is retransmitted;
I″″ is an interfering signal power when the interval for transmitting the detection signal reaches 200 ms and the detection signal is retransmitted; and
N″″ is a noise power when the interval for transmitting the detection signal reaches 200 ms and the detection signal is retransmitted.