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US 2026/0113604 A1Published application
T-box, relay, signal transmission system, and vehicle
AssigneeHuawei Technologies Co., Ltd.
InventorsZheng Shan, Huiqi Lu, Yuwei Tang
Life of this patent
Estimating the term…
Abstract
This application describes a telematics communication terminal (T-Box), where the T-Box can synchronously send a radio frequency signal and a control signal to a relay through a cable. A first branch in the T-Box includes a vehicle-to-everything (V2X) circuit and a first radio frequency transmission circuit, and the first radio frequency transmission circuit is coupled between the V2X circuit and a first combination point. A second branch includes a first control signal end and a first radio frequency isolation circuit, the first radio frequency isolation circuit is coupled between the first control signal end and the first combination point, and the first control signal end outputs the control signal.
Claims20
A telematics communication terminal (T-Box), comprising:
- a first branch comprising a vehicle to everything (V2X) circuit and a first radio frequency transmission circuit, wherein the first radio frequency transmission circuit is coupled between the V2X circuit and a first combination point, and the V2X circuit is configured to transmit and receive a radio frequency signal;
- and
- a second branch comprising a first control signal end and a first radio frequency isolation circuit, wherein the first radio frequency isolation circuit is coupled between the first control signal end and the first combination point, and the first control signal end is configured to output a control signal, wherein
- the first radio frequency transmission circuit is configured to transmit the radio frequency signal and isolate the control signal, and the first radio frequency isolation circuit is configured to transmit the control signal and isolate the radio frequency signal.
1 more element
A relay, comprising:
- a fourth branch, comprising a vehicle to everything (V2X) signal end and a bidirectional switch circuit, wherein the bidirectional switch circuit comprises a first path and a second path that are coupled in parallel between the V2X signal end and a third combination point, the first path comprises a first power amplifier, an output end of the first power amplifier is coupled to the V2X signal end, and the V2X signal end is configured to transmit and receive a radio frequency signal;
- and
- a fifth branch, comprising a second control signal end and a second radio frequency isolation circuit, wherein the second control signal end is coupled to the bidirectional switch circuit, the second radio frequency isolation circuit is coupled between the second control signal end and the third combination point, the second control signal end is configured to receive a control signal, and the second radio frequency isolation circuit is configured to transmit the control signal and isolate the radio frequency signal.
A vehicle, comprising:
- an antenna;
- and
- a signal transmission system, coupled with the antenna, comprising a telematics communication terminal (T-Box), a cable and a relay;
- wherein the T-Box comprises:
- a first branch comprising a vehicle to everything (V2X) circuit and a first radio frequency transmission circuit, wherein the first radio frequency transmission circuit is coupled between the V2X circuit and a first combination point, and the V2X circuit is configured to transmit and receive a radio frequency signal;
- a second branch, comprising a first control signal end and a first radio frequency isolation circuit, wherein the first radio frequency isolation circuit is coupled between the first control signal end and the first combination point, and the first control signal end is configured to output a control signal, wherein
- the first radio frequency transmission circuit is configured to transmit the radio frequency signal and isolate the control signal, and the first radio frequency isolation circuit is configured to transmit the control signal and isolate the radio frequency signal;
- wherein the relay comprises:
- a fourth branch, comprising a vehicle to everything V2X signal end and a bidirectional switch circuit, wherein the bidirectional switch circuit comprises a first path and a second path that are coupled in parallel between the V2X signal end and a third combination point, the first path comprises a first power amplifier, an output end of the first power amplifier is coupled to the V2X signal end, and the V2X signal end is configured to transmit and receive a radio frequency signal;
- a fifth branch, comprising a second control signal end and a second radio frequency isolation circuit, wherein the second control signal end is coupled to the bidirectional switch circuit, the second radio frequency isolation circuit is coupled between the second control signal end and the third combination point, the second control signal end is configured to receive a control signal, and the second radio frequency isolation circuit is configured to transmit the control signal and isolate the radio frequency signal;
- and
- wherein one end of the cable is coupled to the first combination point of the T-Box, and the other end of the cable is coupled to the third combination point of the relay.
9 more elements
Dependencies are inferred from the claim text.