US 11,953,606 B2Granted

Preprocessing module of GNSS chip and terminal device

AssigneeHuawei Technologies Co., Ltd.

InventorsRui Hu, Meiwen Yang, Jianqiang Wang, Lidan Li

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Abstract

A preprocessing system includes a first port, where one end of the first port is coupled to a first switch, and the other end of the first port is suspended, where the first switch has a connecting end configured to couple to a first interface and is configured to connect a filter and the first interface, a second port configured to receive a first signal or a second signal, where the filter is configured to filter the first signal to obtain a first positioning signal and a second positioning signal, provide the first positioning signal for the first switch, and provide the second positioning signal for a second interface of a global navigation satellite system (GNSS) chip to adapt to a plurality of antenna configuration types and to achieve universality.

Claims20

Dependent claims

A preprocessing system of a global navigation satellite system (GNSS) chip comprising:

a first interface corresponding to a first frequency band in the GNSS chip;
a second interface corresponding to a second frequency band in the GNSS chip;
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 configured to either suspend or couple to a first antenna of a terminal device,
wherein the first port is configured to receive, using the first antenna, a first positioning signal in the first frequency band;
a first switch comprising:
a fifth end coupled to the third end;
a sixth end coupled to the second end;
and
a second connecting end coupled to the first interface,
wherein the first switch is configured to:
couple the first port and the first interface when the fourth end is coupled to the first antenna;
and
couple the filter and the first interface when the fourth end is suspended;
and
a second port comprising:
an eighth end coupled to the first end;
and
a ninth end coupled to a second antenna of the terminal device,
wherein the second port is configured to:
receive, using the second antenna, a first signal comprising the first positioning signal and a second positioning signal in the second frequency band when the fourth end is suspended;
and
receive, using the second antenna, a second signal comprising the second positioning signal when the fourth end is coupled to the first antenna, and
wherein the filter is configured to:
filter the first signal when the fourth end is suspended 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
provide the second positioning signal to the second interface when the fourth end is coupled to the first antenna.

31 more elements

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.

30 more elements

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;
a first antenna configured to receive a first positioning signal in the first frequency band;
a second antenna configured to receive a second signal comprising 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 coupled to the first antenna;
a first switch comprising:
a fifth end coupled to the second end;
a sixth end coupled to the third end;
and
a second connecting end coupled to the first interface,
wherein the first switch is configured to couple the first port and the first interface;
and
a second port comprising:
an eighth end coupled to the first end;
and
a ninth end coupled to the second antenna,
wherein the filter is configured to provide the second positioning signal to the second interface,
wherein the GNSS chip is configured to process the first positioning signal and the second positioning signal.

27 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/606,513Filed 21 Apr 2020
Priority: CN 201910342537.926 Apr 2019
Published: US 2022/0214460 A17 Jul 2022
Granted: 9 Apr 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G01S 19/31
Receivers: acquisition or tracking of other signals for positioning
H04B 1/082
Constructional details, e.g. cabinet: to be used in vehicles
G01S 19/115
Wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters: airborne or satellite based…
G01S 19/28
Acquisition or tracking or demodulation of signals transmitted by the system: satellite selection