CN213152383U - C-V2X communication module - Google Patents
C-V2X communication module Download PDFInfo
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- CN213152383U CN213152383U CN202022526747.4U CN202022526747U CN213152383U CN 213152383 U CN213152383 U CN 213152383U CN 202022526747 U CN202022526747 U CN 202022526747U CN 213152383 U CN213152383 U CN 213152383U
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Abstract
The utility model provides a C-V2X communication module, which comprises a radio frequency processing module, a first amplifier, a first filter, a second filter, a power amplifier, an antenna switch, a first antenna and a second antenna; the first amplifier is electrically connected with the radio frequency processing module, the first filter and the power amplifier respectively; the power amplifier is also electrically connected with the radio frequency processing module and the second filter respectively; the antenna switch is electrically connected with the first filter, the second filter, the first antenna and the second antenna respectively; the antenna switch is used for switching the first antenna to be communicated with the first filter and the second filter or switching the second antenna to be communicated with the first filter and the second filter. The utility model discloses an adopt two antennas, strengthened wireless signal's quality, improved wireless signal's stability, improved work efficiency.
Description
Technical Field
The utility model relates to a C-V2X (Cellular Vehicle-to-event, Vehicle wireless communication technology based on Cellular network) communication technical field, in particular to C-V2X communication module.
Background
Modern automobiles are developing towards intelligent driving, the application prospect of C-V2X becomes wide, C-V2X solves the problems of off-road coverage, profit modes, capacity and safety, and the frequency spectrum bandwidth of the automobile is flexibly distributed and has the characteristics of high reliability, wide coverage, large bandwidth support, low time delay and the like.
A wireless communication device, sometimes referred to as a UE (User Equipment), may communicate with a base station or another UE. When a UE communicates with a UE, the communication is referred to as device-to-device communication. In a particular use case, the UE may be a wireless communication device (e.g., a portable cellular device), a vehicle (e.g., an automobile), or any other device capable of wireless connection. When the UE is an automobile, the C-V2X communication includes: vehicle-to-vehicle communication, and vehicle-to-everything communication. Vehicle-to-everything communication may include: vehicle-to-infrastructure communication, vehicle-to-network communication, and vehicle-to-wearable device communication.
Usually, the C-V2X communication module only uses one antenna, and since the wireless signal environment is complex and variable, the stability of the wireless signal cannot be guaranteed by a single antenna, and the working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome among the prior art the unable guarantee of single antenna and receive wireless signal's stability, reduced work efficiency's defect, provide a C-V2X communication module.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides a C-V2X communication module, which comprises a radio frequency processing module, a first amplifier, a first filter, a second filter, a power amplifier, an antenna switch, a first antenna and a second antenna;
the first amplifier is electrically connected with the radio frequency processing module, the first filter and the power amplifier respectively;
the power amplifier is also electrically connected with the radio frequency processing module and the second filter respectively;
the antenna switch is electrically connected with the first filter, the second filter, the first antenna and the second antenna respectively;
the antenna switch is used for switching the first antenna to be communicated with the first filter and the second filter or switching the second antenna to be communicated with the first filter and the second filter.
Preferably, in the case where the antenna switch switches the first antenna to communicate with the first filter and the second filter, the first antenna is used for receiving wireless signals and sending the wireless signals to the first filter and the second filter, the first filter is used for filtering the wireless signal and then sending the wireless signal to the first amplifier, the first amplifier is used for amplifying the filtered wireless signal and then sending the wireless signal to the radio frequency processing module, the second filter is configured to filter the wireless signal and send the wireless signal to the power amplifier, the power amplifier is configured to power-amplify the filtered wireless signal and send the wireless signal to the first amplifier, the first amplifier is further configured to further amplify the wireless signal after power amplification and send the amplified wireless signal to the radio frequency processing module, and the radio frequency processing module is configured to combine two paths of wireless signals sent by the first amplifier;
the radio frequency processing module is further configured to send a wireless signal to be sent to the power amplifier, the power amplifier is further configured to send the wireless signal to the second filter after performing power amplification, and the second filter is further configured to transmit the wireless signal after power amplification to the first antenna for sending after filtering.
Preferably, in the case where the antenna switch switches the second antenna to communicate with the first filter and the second filter, the second antenna is used for receiving wireless signals and sending the wireless signals to the first filter and the second filter, the first filter is used for filtering the wireless signal and then sending the wireless signal to the first amplifier, the first amplifier is used for amplifying the filtered wireless signal and then sending the wireless signal to the radio frequency processing module, the second filter is configured to filter the wireless signal and send the wireless signal to the power amplifier, the power amplifier is configured to power-amplify the filtered wireless signal and send the wireless signal to the first amplifier, the first amplifier is further configured to further amplify the wireless signal after power amplification and send the amplified wireless signal to the radio frequency processing module, and the radio frequency processing module is configured to combine two paths of wireless signals sent by the first amplifier;
the radio frequency processing module is further configured to send a wireless signal to be sent to the power amplifier, the power amplifier is further configured to send the wireless signal to the second filter after performing power amplification, and the second filter is further configured to transmit the wireless signal after power amplification to the second antenna after filtering.
Preferably, the first amplifier is a low noise amplifier.
Preferably, the first filter is a band-pass filter;
and/or the second filter is a band-pass filter.
Preferably, the antenna switch is a double-pole double-throw switch;
two movable arm fixed end interfaces of the antenna switch are respectively electrically connected with the first filter and the second filter, and two groups of fixed contacts of the antenna switch are respectively electrically connected with the first antenna and the second antenna.
Preferably, the radio frequency processing module is further configured to send a power feedback signal to the power amplifier to adjust the wireless signal to be sent to reach a predetermined power.
Preferably, the radio frequency processing module is further electrically connected to the antenna switch;
the radio frequency processing module is further configured to send a first antenna switching signal to the antenna switch, so that the antenna switch switches the first antenna to be communicated with the first filter and the second filter.
Preferably, the radio frequency processing module is further configured to send a second antenna switching signal to the antenna switch, so that the antenna switch switches the second antenna to communicate with the first filter and the second filter.
Preferably, the first antenna is a main set antenna, and the second antenna is a diversity antenna.
The utility model discloses an actively advance the effect and lie in: the C-V2X communication module adopts two antennas and an antenna switch to switch the antennas, so that the wireless signals are received and transmitted through one of the first antenna and the second antenna, the quality of the wireless signals is enhanced, the stability of the wireless signals is improved, and the working efficiency is improved.
Drawings
Fig. 1 is a block diagram of a C-V2X communication module according to a preferred embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings, which are used to illustrate preferred embodiments of the present invention, but not to limit the scope of the present invention.
The embodiment provides a C-V2X communication module. Referring to fig. 1, the C-V2X communication module includes a radio frequency processing module 1, a first amplifier 2, a first filter 3, a second filter 4, a power amplifier 5, an antenna switch 6, a first antenna 7, and a second antenna 8.
The first amplifier 2 is electrically connected with the radio frequency processing module 1, the first filter 3 and the power amplifier 5 respectively. The power amplifier 5 is also electrically connected to the rf processing module 1 and the second filter 4, respectively. The antenna switch 6 is electrically connected to the first filter 3, the second filter 4, the first antenna 7, and the second antenna 8, respectively. The PRX _ LAA pin and the DRX _ LAA pin of the radio frequency processing module 1 are respectively connected with the first amplifier 2, the TX1_ ELAA pin of the radio frequency processing module 1 is connected with the TX1 pin of the power amplifier 5, the RX1 pin of the power amplifier 5 is connected with the first filter 3, the RF-PORT pin of the power amplifier 5 is connected with the second filter 4, the Port1 pin of the antenna switch 6 is connected with the first filter 3, the Port2 pin of the antenna switch 6 is connected with the second filter 4, the ANT1 pin of the antenna switch 6 is connected with the first antenna 7, and the ANT2 pin of the antenna switch 6 is connected with the second antenna 8.
The antenna switch 6 is used to switch the first antenna 7 in communication with the first filter 3 and the second filter 4, or to switch the second antenna 8 in communication with the first filter 3 and the second filter 4.
The C-V2X communication module of this embodiment is through adopting two antennas to adopt antenna switch 6 to carry out the antenna switching, receive and send out wireless signal through one in first antenna 7 and the second antenna 8, strengthened wireless signal's quality, improved wireless signal's stability, improved work efficiency.
In this embodiment, when the antenna switch 6 switches the first antenna 7 to communicate with the first filter 3 and the second filter 4, the first antenna 7 is configured to receive a wireless signal and send the wireless signal to the first filter 3 and the second filter 4, the first filter 3 is configured to filter the wireless signal and send the wireless signal to the first amplifier 2, the first amplifier is configured to amplify the filtered wireless signal and send the amplified wireless signal to a PRX _ LAA pin of the radio frequency processing module 1, the second filter 4 is configured to filter the wireless signal and send the filtered wireless signal to an RF-PORT pin of the power amplifier 5, the power amplifier 5 is configured to power-amplify the filtered wireless signal and send the amplified wireless signal to the first amplifier 2 through an RX1 pin, the first amplifier 2 is further configured to further amplify the power-amplified wireless signal and send the amplified wireless signal to a DRX _ LAA pin of the radio frequency processing module 1, and the radio frequency processing module 1 is configured to combine two paths of wireless signals sent by the first amplifier 2. The wireless signal is transmitted to the radio frequency processing module 1 through two receiving channels with different processing, wherein one receiving channel comprises a first filter 3 and a first amplifier 2, and the other receiving channel comprises a second filter 4, a power amplifier 5 and the first amplifier 2.
The radio frequency processing module 1 is further configured to send a wireless signal to be sent to a TX1 pin of the power amplifier 5 through a TX1_ ELAA pin, the power amplifier 5 is further configured to send the wireless signal to the second filter 4 through an RF-PORT pin after performing power amplification, and the second filter 4 is further configured to transmit the wireless signal after power amplification to the first antenna 7 for sending.
In this embodiment, when the antenna switch 6 switches the second antenna 8 to communicate with the first filter 3 and the second filter 4, the second antenna 8 is configured to receive a wireless signal and send the wireless signal to the first filter 3 and the second filter 4, the first filter 3 is configured to filter the wireless signal and send the wireless signal to the first amplifier 2, the first amplifier is configured to amplify the filtered wireless signal and send the amplified wireless signal to a PRX _ LAA pin of the radio frequency processing module 1, the second filter 4 is configured to filter the wireless signal and send the filtered wireless signal to an RF-PORT pin of the power amplifier 5, the power amplifier 5 is configured to power-amplify the filtered wireless signal and send the amplified wireless signal to the first amplifier 2 through an RX1 pin, the first amplifier 2 is further configured to further amplify the power-amplified wireless signal and send the amplified wireless signal to a DRX _ LAA pin of the radio frequency processing module 1, and the radio frequency processing module 1 is configured to combine two paths of wireless signals sent by the first amplifier 2. The wireless signal is transmitted to the radio frequency processing module 1 through two receiving channels with different processing, wherein one receiving channel comprises a first filter 3 and a first amplifier 2, and the other receiving channel comprises a second filter 4, a power amplifier 5 and the first amplifier 2.
The radio frequency processing module 1 is further configured to send a wireless signal to be sent to a TX1 pin of the power amplifier 5 through a TX1_ ELAA pin, the power amplifier 5 is further configured to send the wireless signal to the second filter 4 through an RF-PORT pin after performing power amplification, and the second filter 4 is further configured to transmit the wireless signal after power amplification to the second antenna 8 for sending.
In the case that the C-V2X communication module receives and transmits a wireless signal through one of the two antennas, the wireless signal may be filtered, amplified, etc. in the circuit to improve the quality of the wireless signal, and especially when receiving the wireless signal, the wireless signal is transmitted to the radio frequency processing module 1 through two receiving channels with different processing, which further enhances the quality of the wireless signal, improves the stability of the wireless signal, and improves the working efficiency.
In specific implementation, the first amplifier 2 is a low noise amplifier, the first filter 3 is a band pass filter, the second filter 4 is a band pass filter, the first antenna 7 is a main set antenna, and the second antenna 8 is a diversity antenna.
In specific implementation, the antenna switch 6 is a double-pole double-throw switch. Two movable arm fixed end interfaces of the antenna switch 6 are respectively and electrically connected with the first filter 3 and the second filter 4, and two groups of fixed contacts of the antenna switch 6 are respectively and electrically connected with the first antenna 7 and the second antenna 8. By moving the two movable arms and contacting a set of fixed contacts, to switch an antenna into communication with the first filter 3 and the second filter 4. One movable arm fixed end interface is connected with the first filter 3 through a Port1 pin, the other movable arm fixed end interface is connected with the second filter 4 through a Port2 pin, one group of fixed contacts are connected with the first antenna 7 through an ANT1 pin, and the other group of fixed contacts are connected with the second antenna 8 through an ANT2 pin.
IN specific implementation, the FBRX _ IN1 pin of the radio frequency processing module 1 is connected to the FBRX pin of the power amplifier 5, and the radio frequency processing module 1 is further configured to send a power feedback signal to the FBRX pin of the power amplifier 5 through the FBRX _ IN1 pin, so as to adjust a wireless signal to be sent to reach a predetermined power, and further improve the quality of the sent wireless signal.
In specific implementation, the rf processing module 1 is further electrically connected to the antenna switch 6. The radio frequency processing module 1 is further configured to send a first antenna switching signal to the antenna switch 6, so that the antenna switch 6 switches the first antenna 7 to communicate with the first filter 3 and the second filter 4.
The radio frequency processing module 1 is further configured to send a second antenna switching signal to the antenna switch 6, so that the antenna switch 6 switches the second antenna 8 to communicate with the first filter 3 and the second filter 4.
The C-V2X communication module of this embodiment further controls the antenna switch 6 to switch antennas through the rf processing module 1, so as to receive and transmit wireless signals through one of the first antenna 7 and the second antenna 8, thereby enriching the means for controlling the switching of antennas.
Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. A C-V2X communication module is characterized by comprising a radio frequency processing module, a first amplifier, a first filter, a second filter, a power amplifier, an antenna switch, a first antenna and a second antenna;
the first amplifier is electrically connected with the radio frequency processing module, the first filter and the power amplifier respectively;
the power amplifier is also electrically connected with the radio frequency processing module and the second filter respectively;
the antenna switch is electrically connected with the first filter, the second filter, the first antenna and the second antenna respectively;
the antenna switch is used for switching the first antenna to be communicated with the first filter and the second filter or switching the second antenna to be communicated with the first filter and the second filter.
2. The C-V2X communication module as claimed in claim 1, wherein, when the antenna switch switches the first antenna to communicate with the first filter and the second filter, the first antenna is configured to receive a wireless signal and send the wireless signal to the first filter and the second filter, the first filter is configured to filter the wireless signal and send the wireless signal to the first amplifier, the first amplifier is configured to amplify the filtered wireless signal and send the wireless signal to the rf processing module, the second filter is configured to filter the wireless signal and send the wireless signal to the power amplifier, the power amplifier is configured to power-amplify the filtered wireless signal and send the wireless signal to the first amplifier, and the first amplifier is further configured to further amplify the power-amplified wireless signal and send the wireless signal to the rf processing module, the radio frequency processing module is used for combining two paths of wireless signals sent by the first amplifier;
the radio frequency processing module is further configured to send a wireless signal to be sent to the power amplifier, the power amplifier is further configured to send the wireless signal to the second filter after performing power amplification, and the second filter is further configured to transmit the wireless signal after power amplification to the first antenna for sending after filtering.
3. The C-V2X communication module as claimed in claim 1, wherein, when the antenna switch switches the second antenna to communicate with the first filter and the second filter, the second antenna is configured to receive a wireless signal and send the wireless signal to the first filter and the second filter, the first filter is configured to filter the wireless signal and send the wireless signal to the first amplifier, the first amplifier is configured to amplify the filtered wireless signal and send the wireless signal to the rf processing module, the second filter is configured to filter the wireless signal and send the wireless signal to the power amplifier, the power amplifier is configured to power-amplify the filtered wireless signal and send the wireless signal to the first amplifier, and the first amplifier is further configured to further amplify the power-amplified wireless signal and send the wireless signal to the rf processing module, the radio frequency processing module is used for combining two paths of wireless signals sent by the first amplifier;
the radio frequency processing module is further configured to send a wireless signal to be sent to the power amplifier, the power amplifier is further configured to send the wireless signal to the second filter after performing power amplification, and the second filter is further configured to transmit the wireless signal after power amplification to the second antenna after filtering.
4. The C-V2X communication module of claim 1, wherein the first amplifier is a low noise amplifier.
5. The C-V2X communication module of claim 1, wherein the first filter is a band pass filter;
and/or the second filter is a band-pass filter.
6. The C-V2X communication module of claim 1, wherein the antenna switch is a double pole double throw switch;
two movable arm fixed end interfaces of the antenna switch are respectively electrically connected with the first filter and the second filter, and two groups of fixed contacts of the antenna switch are respectively electrically connected with the first antenna and the second antenna.
7. The C-V2X communication module according to claim 2 or 3, wherein the rf processing module is further configured to send a power feedback signal to the power amplifier to adjust the wireless signal to be sent to a predetermined power.
8. The C-V2X communication module of claim 1, wherein the radio frequency processing module is further electrically connected to the antenna switch;
the radio frequency processing module is further configured to send a first antenna switching signal to the antenna switch, so that the antenna switch switches the first antenna to be communicated with the first filter and the second filter.
9. The C-V2X communication module of claim 8, wherein the rf processing module is further configured to send a second antenna switching signal to the antenna switch to cause the antenna switch to switch the second antenna into communication with the first filter and the second filter.
10. The C-V2X communication module of claim 1, wherein the first antenna is a main set antenna and the second antenna is a diversity antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022526747.4U CN213152383U (en) | 2020-11-04 | 2020-11-04 | C-V2X communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022526747.4U CN213152383U (en) | 2020-11-04 | 2020-11-04 | C-V2X communication module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213152383U true CN213152383U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022526747.4U Active CN213152383U (en) | 2020-11-04 | 2020-11-04 | C-V2X communication module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213152383U (en) |
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2020
- 2020-11-04 CN CN202022526747.4U patent/CN213152383U/en active Active
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