Patent ID: 11916578
Assignee: JRD COMMUNICATION (SHENZHEN) LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A signal transmission method adaptable for a radio frequency circuit, wherein the radio frequency circuit comprises a radio frequency module, a first combiner, a second combiner, a main antenna, and a secondary antenna; the main antenna is directly connected to the first combiner and connected to the radio frequency module through the first combiner, and the secondary antenna is directly connected to the second combiner and connected to the radio frequency module through the second combiner; the signal transmission method comprising:
detecting whether the main antenna is hand held;
if the main antenna is hand held, determining a target frequency band from at least one frequency band of signals pending on transmission, and transmitting a main antenna signal of the target frequency band to the secondary antenna through the second combiner, and transmitting a secondary antenna signal of the target frequency band to the main antenna through the first combiner;
if the main antenna is not hand held, transmitting main antenna signals of all frequency band of signals pending on transmission to the main antenna through the first combiner,
and transmitting secondary antenna signals of all frequency band of signals pending on transmission to the secondary antenna through the second combiner;
wherein the first combiner and the second combiner both receive the main antenna signal of the target frequency band and the secondary antenna signal of the target frequency band.