Patent ID: 11953606
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 10:
11. A terminal device comprising:
a global navigation satellite system (GNSS) chip comprising:
a first interface corresponding to a first frequency band in the GNSS chip; and
a second interface corresponding to a second frequency band in the GNSS chip;

an antenna configured to receive a first signal comprising a first positioning signal in the first frequency band and a second positioning signal in the second frequency band; and
a preprocessing system comprising:
a filter comprising:
a first end;
a second end; and
a first connecting end coupled to the second interface;

a first port comprising:
a third end; and
a fourth end is suspended;

a first switch comprising:
a fifth end coupled to the third end; and
a sixth end coupled to the second end;
a second connecting end coupled to the first interface,
wherein the first switch is configured to couple the filter and the first interface; and

a second port comprising:
an eighth end coupled to the first end; and
a ninth end coupled to the antenna, and

wherein the filter is configured to:
filter the first signal to obtain the first positioning signal and the second positioning signal;
provide the first positioning signal to the first switch; and
provide the second positioning signal to the second interface, and

wherein the GNSS chip is configured to process the first positioning signal and the second positioning signal.