Signal transmission method, device, storage medium and chip system

Abstract

A signal transmission method, device, storage medium and chip system are used to send data of two frequency bands, C‑V2X and ETC, through a radio frequency transmission channel (33), thereby reducing the area occupied by a transceiver in a wireless communication device. The provided wireless communication device includes a processor (326) and a radio frequency processing circuit coupled to the processor (326). The processor (326) is used to set one or more operating parameters of the radio frequency processing circuit. The radio frequency processing circuit includes a radio frequency transmission channel (33), and the radio frequency transmission channel (33) is used to operate in a first frequency band and a second frequency band in a time division multiplexing manner. The first frequency band includes an uplink transmission frequency band of C‑V2X, and the second frequency band includes an uplink transmission frequency band of ETC. Since data corresponding to C‑V2X and ETC can be sent through the radio frequency transmission channel (33), the solution can reduce the area of ​​the wireless communication device occupied by the transceiver.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a signal transmission method, device, storage medium and chip system. Background Art

[0002] With the development of communication technology, communication devices need to support more and more services, such as vehicle to everything (V2X), electronic toll collection (ETC) services, the 5th generation (5G) services, and so on.

[0003] V2X is a key technology for future intelligent transportation systems. Current V2X applications include: vehicle-to-vehicle (V2V), vehicle-to-roadside infrastructure (V2I), vehicle-to-pedestrian (V2P), vehicle-to-application server (V2N), and vehicle-to-mobile communication network communication. V2X applications will help improve driving safety, reduce congestion and vehicle energy consumption, improve traffic efficiency and enrich in-vehicle entertainment information. The C in C-V2X refers to cellular, which is a wireless communication technology for vehicles based on the evolution of cellular network communication technologies such as 3G / 4G / 5G. It is a communication technology based on the global unified standard of 3GPP, including Long Term Evolution (LTE)-V2X and New Radio (NR)-V2X. From the perspective of technology evolution, LTE-V2X supports smooth evolution to NR-V2X.

[0004] ETC services are usually carried out through dedicated short-range communication between the on-board ETC terminal and the ETC toll collection equipment in the toll station lane, using computer networking technology to conduct back-end settlement processing with banks, so that vehicles can pay highway or bridge fees without stopping at highway or bridge toll stations.

[0005] In the prior art, when multiple services are integrated into one wireless communication device, such as C-V2X and ETC, independent transceivers need to be provided for C-V2X and ETC in the wireless communication device, so as to realize the coexistence or parallel operation of the two transceivers through the interaction of the application layer. A transceiver generally includes an antenna, a radio frequency transmission channel, a radio frequency reception channel, and baseband processing resources.

[0006] Since two independent transceivers need to be provided for C-V2X and ETC respectively, the two independent transceivers occupy a large area of ​​the wireless communication device. Based on this, a solution is urgently needed to reduce the occupied area of ​​the transceiver in the wireless communication device. Summary of the invention

[0007] The present application provides a signal transmission method, device, storage medium and chip system for sending data of two frequency bands, C-V2X and ETC, through a radio frequency transmission channel, thereby reducing the area occupied by the transceiver in the wireless communication device.

[0008] It should be understood that in the solution provided in the embodiment of the present application, the communication device can be a wireless communication device, or a part of a wireless communication device, such as an integrated circuit product such as a system chip or a communication chip. The wireless communication device can be a computer device that supports wireless communication functions.

[0009] Specifically, the wireless communication device may be a terminal such as a smart phone, or a wireless access network device such as a base station. The system chip may also be referred to as a system on chip (SoC), or simply as an SoC chip. The communication chip may include a baseband processing chip and a radio frequency processing chip. The baseband processing chip is sometimes also referred to as a modem or a baseband chip. The radio frequency processing chip is sometimes also referred to as a radio frequency transceiver or a radio frequency chip. In physical implementation, some or all of the chips in the communication chip may be integrated inside the SoC chip. For example, the baseband processing chip is integrated in the SoC chip, and the radio frequency processing chip is not integrated with the SoC chip.

[0010] In a first aspect, an embodiment of the present application provides a wireless communication device, including a processor, and a radio frequency processing circuit coupled to the processor. The processor is used to set one or more operating parameters of the radio frequency processing circuit. The radio frequency processing circuit includes a radio frequency transmission channel, and the radio frequency transmission channel is used to operate in a first frequency band and a second frequency band in a time division multiplexing manner. The first frequency band includes an uplink transmission frequency band of C-V2X, and the second frequency band includes an uplink transmission frequency band of ETC. Since the data corresponding to C-V2X and ETC can be sent through the radio frequency transmission channel, compared with the solution of using two radio frequency transmission channels in two transceivers to respectively send the data corresponding to C-V2X and ETC, the solution of the embodiment of the present application can reduce the area of ​​the wireless communication device occupied by the transceiver.

[0011] In a possible implementation, the radio frequency transmission channel includes an uplink mixer, a phase-locked loop and a low-pass filter coupled to the uplink mixer, and a digital-to-analog converter coupled to the low-pass filter. The processor is used to set one or more of the following operating parameters of the radio frequency transmission channel to enable the radio frequency transmission channel to operate in a first frequency band and a second frequency band in a time division multiplexing manner: the frequency point of the phase-locked loop, the bandwidth of the low-pass filter, the sampling rate of the digital-to-analog converter, or the bit width of the digital-to-analog converter. In this way, the purpose of adjusting the operating frequency band of the radio frequency transmission channel can be achieved by adjusting the operating parameters of the radio frequency transmission channel, thereby laying a foundation for sending data of multiple services through the radio frequency transmission channel.

[0012] In a possible implementation, the RF processing circuit also includes a first RF receiving channel. The first RF receiving channel is used to operate in a third frequency band and a fourth frequency band in a time division multiplexing manner, the third frequency band includes a downlink receiving frequency band of the cellular-vehicle network C-V2X, and the fourth frequency band includes a downlink receiving frequency band of the electronic toll collection system ETC. In this case, a transceiver may include one or more first RF receiving channels. Since data corresponding to C-V2X and ETC can be received through one or more first RF receiving channels, compared with a solution that uses two RF receiving channels in two transceivers to respectively receive data corresponding to C-V2X and ETC, the solution of the embodiment of the present application can reduce the area of ​​the wireless communication device occupied by the transceiver.

[0013] In a possible implementation, the first RF receiving channel includes: a first mixer, a first phase-locked loop coupled to the first mixer, a first low-pass filter coupled to the first mixer, and a first analog-to-digital converter coupled to the first low-pass filter. The processor is used to set one or more of the following operating parameters of the first RF receiving channel to enable the first RF receiving channel to operate in a third frequency band and a fourth frequency band in a time-division multiplexing manner. The frequency point of the first phase-locked loop, the bandwidth of the first low-pass filter, the sampling rate of the first analog-to-digital converter, or the bit width of the first analog-to-digital converter. In this way, the purpose of adjusting the operating frequency band of the first RF receiving channel can be achieved by adjusting the operating parameters of the first RF receiving channel, thereby laying the foundation for sending data of multiple services through the first RF receiving channel.

[0014] In a possible implementation, a second RF receiving channel is further included. The second RF receiving channel is used to operate exclusively in the third frequency band. In this case, a transceiver may include at least two RF receiving channels, and since the second RF receiving channel is used to operate exclusively in the third frequency band, the transceiver can receive as much data in the third frequency band as possible while satisfying the need to receive data of multiple services, thereby minimizing the impact on the C-V2X service caused by the use of the RF processing circuit by the ETC service.

[0015] In a possible implementation, a second RF receiving channel is further included. The second RF receiving channel is used to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner. In this case, a transceiver may include at least two RF receiving channels, and since the second RF receiving channel is used to operate in the third frequency band in an exclusive manner, the transceiver can receive as much data in the third frequency band as possible while satisfying the need to receive data of multiple services, thereby minimizing the impact on the C-V2X service caused by the use of the RF processing circuit by the ETC service.

[0016] In one possible implementation, the second RF receiving channel includes: a second mixer, a second phase-locked loop coupled to the second mixer, a second low-pass filter coupled to the second mixer, and a second analog-to-digital converter coupled to the second low-pass filter. The processor is used to set one or more of the following operating parameters of the second RF receiving channel to enable the second RF receiving channel to operate in the third frequency band and the fourth frequency band in a time-division multiplexing manner. The frequency point of the second phase-locked loop, the bandwidth of the second low-pass filter, the sampling rate of the second analog-to-digital converter, or the bit width of the second analog-to-digital converter. In this way, the purpose of adjusting the operating frequency band of the second RF receiving channel can be achieved by adjusting the operating parameters of the second RF receiving channel, thereby laying the foundation for sending data of multiple services through the second RF receiving channel.

[0017] In a possible implementation, the RF processing circuit further includes a first switch and a second switch. The first switch is located between the first phase-locked loop and the first mixer. The second switch is located between the second phase-locked loop and the first mixer, and when the second switch is closed, the second phase-locked loop is used to output signals to the first mixer and the second mixer. The RF processing circuit can have multiple operating modes by using the first switch and the second switch, for example, the operating frequency bands of the first RF receiving channel and the second RF receiving channel can be made the same. For another example, the operating frequency bands of the first RF receiving channel and the second RF receiving channel can also be controlled separately, for example, the operating frequency bands of the first RF receiving channel and the second RF receiving channel can be made different.

[0018] In a possible implementation, the processor is further configured to: close or open the first switch, and close or open the second switch according to operating frequency bands of the first RF receiving channel and the second RF receiving channel.

[0019] In a possible implementation, the processor is specifically configured to: when the operating frequency bands of the first RF receiving channel and the second RF receiving channel are different, close the first switch and open the second switch. In this way, the operating frequency bands of the first RF receiving channel and the second RF receiving channel can be set separately, thereby improving the flexibility of the solution.

[0020] When the operating frequency bands of the first RF receiving channel and the second RF receiving channel are the same, the first switch is opened and the second switch is closed. In this way, since the first RF receiving channel and the second RF receiving channel are both provided with signals by the same phase-locked loop, the operating frequency bands of the first RF receiving channel and the second RF receiving channel must be the same. In this way, the configuration process of the operating frequency band of the RF processing circuit can be simplified.

[0021] In a possible implementation, the processor is further used to: when it is determined that the first preset condition is met, set one or more operating parameters of the first RF receiving channel to enable the first RF receiving channel to operate exclusively in the fourth frequency band. Set one or more operating parameters of the second RF receiving channel to enable the second RF receiving channel to operate exclusively in the third frequency band. The first preset condition includes: receiving data in the fourth frequency band. In this way, after receiving the ETC signal, it can be determined that the ETC charging area has been entered, and then the first RF receiving channel can be completely operated in the fourth frequency band, thereby minimizing the possibility of missing the ETC signal.

[0022] In a possible implementation, the first preset condition also includes: ETC charging has not been completed. In this way, when the first preset condition is met, that is, after the ETC signal is received and before the ETC charging is completed, the first RF receiving channel can be completely operated in the fourth frequency band, thereby minimizing the leakage of the ETC signal. When the first preset condition is not met, that is, the ETC signal is not received within the first time length, or the ETC charging has been completed, the first RF receiving channel can be operated in the third frequency band and the fourth frequency band in a time division multiplexing manner, thereby minimizing the impact on the C-V2X service.

[0023] In a possible implementation, the processor is further configured to: when it is determined that the first preset condition is met, during the time period when the radio frequency transmission channel operates in the first frequency band, set the parameters of the power amplifier in the radio frequency transmission channel to reduce the power of the transmitted signal in the first frequency band. In this way, when the first preset condition is met, it can be determined that the vehicle enters the ETC charging area, and then the power of the C-V2X service is backed off to minimize the impact of the C-V2X signal on the ETC signal.

[0024] In a possible implementation, the radio frequency processing circuit further includes: a third switch and a first antenna. The first antenna is selectively connected to the radio frequency transmission channel and the second radio frequency reception channel through the third switch. In this way, the area of ​​the wireless communication device occupied by the transceiver can be minimized.

[0025] In a possible implementation, the processor is further configured to connect the first antenna to the RF transmission channel through a third switch when there is data to be transmitted, and to connect the second RF reception channel through the third switch when there is no data to be transmitted.

[0026] In order to be compatible with a possible existing standard, in a possible implementation, at least one of the first frequency band, the second frequency band, the third frequency band or the fourth frequency band satisfies the following conditions: the first frequency band includes 5855-5925MHz; the second frequency band includes 5787.5-5802.5MHz; the third frequency band includes 5855-5925MHz; or, the fourth frequency band includes 5825-5845MHz.

[0027] In a second aspect, an embodiment of the present application provides a signal transmission method, which is applied to a wireless communication device including a processor and a radio frequency processing circuit, wherein the processor is coupled to the radio frequency processing circuit; and the radio frequency processing circuit includes a radio frequency transmission channel. One or more operating parameters of the radio frequency processing circuit are set by the processor to enable the radio frequency transmission channel to operate in a first frequency band and a second frequency band in a time division multiplexing manner, and the signal of the first frequency band and the signal of the second frequency band are transmitted in a time division multiplexing manner through the radio frequency transmission channel. The first frequency band includes an uplink transmission frequency band of a cellular-vehicle network C-V2X, and the second frequency band includes an uplink transmission frequency band of an electronic toll collection system ETC.

[0028] In a possible implementation, the RF transmission channel includes an uplink mixer, a phase-locked loop and a low-pass filter coupled to the uplink mixer, and a digital-to-analog converter coupled to the low-pass filter. One or more operating parameters of the RF processing circuit include one or more of the following: a frequency of the phase-locked loop, a bandwidth of the low-pass filter, a sampling rate of the digital-to-analog converter, or a bit width of the digital-to-analog converter.

[0029] In a possible implementation, the RF processing circuit further includes a first RF receiving channel. One or more operating parameters of the first RF receiving channel are set to enable the first RF receiving channel to operate in a third frequency band and a fourth frequency band in a time division multiplexing manner, the third frequency band includes a downlink receiving frequency band of a cellular-vehicle network C-V2X, and the fourth frequency band includes a downlink receiving frequency band of an electronic toll collection system ETC.

[0030] In a possible implementation, the first RF receiving channel includes: a first mixer, a first phase-locked loop coupled to the first mixer, a first low-pass filter coupled to the first mixer, and a first analog-to-digital converter coupled to the first low-pass filter. One or more operating parameters of the first RF receiving channel include one or more of the following: a frequency of the first phase-locked loop, a bandwidth of the first low-pass filter, a sampling rate of the first analog-to-digital converter, or a bit width of the first analog-to-digital converter.

[0031] In a possible implementation manner, a second radio frequency receiving channel is further included. One or more operating parameters of the second radio frequency receiving channel are set to enable the second radio frequency receiving channel to operate exclusively in the third frequency band.

[0032] In a possible implementation manner, a second radio frequency receiving channel is further included. One or more operating parameters of the second radio frequency receiving channel are set to enable the second radio frequency receiving channel to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner.

[0033] In a possible implementation, the second RF receiving channel includes: a second mixer, a second phase-locked loop coupled to the second mixer, a second low-pass filter coupled to the second mixer, and a second analog-to-digital converter coupled to the second low-pass filter. One or more operating parameters of the second RF receiving channel include one or more of the following: a frequency of the second phase-locked loop, a bandwidth of the second low-pass filter, a sampling rate of the second analog-to-digital converter, or a bit width of the second analog-to-digital converter.

[0034] In a possible implementation, the RF processing circuit further includes a first switch and a second switch; the first switch is located between the first phase-locked loop and the first mixer; the second switch is located between the second phase-locked loop and the first mixer. The method further includes: closing or opening the first switch and closing or opening the second switch according to the operating frequency bands of the first RF receiving channel and the second RF receiving channel.

[0035] In a possible implementation, closing or opening the first switch and closing or opening the second switch according to the operating frequency bands of the first RF receiving channel and the second RF receiving channel includes: when the operating frequency bands of the first RF receiving channel and the second RF receiving channel are different, closing the first switch and opening the second switch. When the operating frequency bands of the first RF receiving channel and the second RF receiving channel are the same, opening the first switch and closing the second switch;

[0036] In a possible implementation, the method further includes: when it is determined that the first preset condition is met: setting one or more operating parameters of the first RF receiving channel to enable the first RF receiving channel to operate exclusively in the fourth frequency band. Setting one or more operating parameters of the second RF receiving channel to enable the second RF receiving channel to operate exclusively in the third frequency band. The first preset condition includes: receiving data in the fourth frequency band.

[0037] In a possible implementation, the first preset condition also includes: ETC charging is not completed.

[0038] In a possible implementation, the method further includes: when it is determined that the first preset condition is met, during a time period when the RF transmission channel operates in the first frequency band, setting parameters of a power amplifier in the RF transmission channel to lower the power of the transmitted signal in the first frequency band.

[0039] In a possible implementation, at least one of the first frequency band, the second frequency band, the third frequency band or the fourth frequency band satisfies the following conditions: the first frequency band includes 5855-5925 MHz; the second frequency band includes 5787.5-5802.5 MHz; the third frequency band includes 5855-5925 MHz; or the fourth frequency band includes 5825-5845 MHz.

[0040] The beneficial effects of the second aspect and any possible implementation manner of the second aspect can be found in the relevant contents of the aforementioned first aspect and any possible implementation manner of the second aspect, and will not be repeated here.

[0041] The present application also provides a communication device, comprising: a processor and a memory; wherein the memory is used to store program instructions; the processor is used to execute the program instructions stored in the memory to implement any possible method in the third aspect or the fourth aspect.

[0042] The present application also provides a communication device, comprising: a processor and an interface circuit; wherein the interface circuit is used to access a memory, in which program instructions are stored; the processor is used to access the memory through the interface circuit and execute the program instructions stored in the memory to implement any possible method in the third aspect or the fourth aspect.

[0043] The present application provides a computer-readable storage medium, in which computer-readable instructions are stored. When a computer reads and executes the computer-readable instructions, a communication device executes a method in any possible design described above.

[0044] The present application provides a computer program product. When a computer reads and executes the computer program product, a communication device executes a method in any possible design described above.

[0045] The present application provides a chip, which is connected to a memory and is used to read and execute a software program stored in the memory to implement the method in any possible design described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of a scenario applicable to an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the structure of a wireless communication device provided in an embodiment of the present application;

[0048] Figure 3 A schematic diagram of the structure of another wireless communication device provided in an embodiment of the present application;

[0049] Figure 4a A schematic diagram of the structure of another wireless communication device provided in an embodiment of the present application;

[0050] Figure 4b A schematic diagram of the structure of another wireless communication device provided in an embodiment of the present application;

[0051] Figure 4c A schematic diagram of the structure of another wireless communication device provided in an embodiment of the present application;

[0052] Figure 5 A schematic diagram of the structure of another wireless communication device provided in an embodiment of the present application;

[0053] Figure 6 A schematic diagram of a signal transmission method flow chart provided in an embodiment of the present application. DETAILED DESCRIPTION

[0054] The embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0055] The devices in the communication system to which the embodiments of the present application are applicable can be divided into: devices that provide wireless network services and devices that use wireless network services.

[0056] (1) Equipment that provides wireless network services.

[0057] Equipment that provides wireless network services refers to those devices that make up the wireless communication network, which can be referred to as network equipment or network elements. Network equipment usually belongs to operators or infrastructure providers, and these manufacturers are responsible for operation or maintenance.

[0058] The network device can be a vehicle networking platform or server that manages and provides services for terminal devices and / or roadside units, and can include a platform or server that provides services for ETC toll collection equipment. The specific deployment form of the network device is not limited in this application. For example, it can be cloud deployment, or it can be an independent computer device or chip. When a V2X message needs to be sent to a terminal device, the network device can send the V2X message to the roadside unit, and the roadside unit broadcasts it to the terminal devices within its coverage area. Of course, the network device can also send the V2X message directly to the terminal device.

[0059] (2) Devices using wireless network services.

[0060] The device that uses the wireless network service can be referred to as a terminal or terminal device. The terminal can establish a connection with the network device and provide specific wireless communication services to the user based on the services of the network device. It should be understood that due to the closer relationship between the terminal and the user, it is sometimes also referred to as user equipment (UE) or subscriber unit (SU). In addition, compared with base stations that are usually placed in fixed locations, terminals often move with users and are sometimes referred to as mobile stations (MS). In addition, some network devices, such as relay nodes (RN) or wireless routers, etc., are sometimes also considered terminals because they have UE identities or belong to users.

[0061] The terminal device in the embodiments of the present application may be a vehicle or non-motor vehicle, a portable device, a wearable device or a mobile phone (or a "cellular" phone) with communication functions, or a component or chip in these devices. The terminal device in the present application may refer to a terminal device applied to the Internet of Vehicles, and the terminal device in the present application may also be called an Internet of Vehicles terminal device, an Internet of Vehicles terminal, an Internet of Vehicles communication device or a vehicle-mounted terminal device, etc.

[0062] A vehicle is a typical terminal device in the Internet of Vehicles. In the following embodiments of the present application, a vehicle is used as an example for description. Any vehicle in the embodiments of the present application may be a smart car or a non-smart car, and the embodiments of the present application are not limited by comparison. It should be understood by those skilled in the art that the embodiments of the present application taking the vehicle as an example can also be applied to other types of terminal devices. The terminal device can specifically execute Internet of Vehicles-related business processes through its internal functional units or devices. For example, when the terminal device is a vehicle, one or more of the following devices in the vehicle can be used to execute the method flow related to the terminal device in the embodiments of the present application, such as a telematics box (T-Box), a domain controller (DC), a multi-domain controller (MDC), an on-board unit (OBU) or an Internet of Vehicles chip.

[0063] In the embodiments of the present application, the vehicle can communicate with other objects based on the vehicle-to-external wireless communication technology (for example, vehicle to everything, V2X). For example, the communication between the vehicle and the cloud server can be realized based on V2X. The communication between the vehicle and other objects (such as other vehicles) can be based on wireless high fidelity (for example, wireless fidelity (Wi-Fi)), fifth generation (5th generation, 5G) mobile communication technology, etc. For example, the communication between the vehicle and other devices can be realized based on 5G.

[0064] In addition, in the embodiments of the present application, the terminal and the network device may be aware of the predefined configuration of the wireless communication system, including the radio access technology (RAT) supported by the system and the wireless resource configuration specified by the system, such as the basic configuration of the radio frequency band. The frequency band can be determined by the center frequency of the carrier (denoted as the carrier frequency) and the bandwidth of the carrier. These system predefined configurations can be used as part of the standard protocol of the wireless communication system, or determined through interaction between the terminal and the network device. The content of the relevant standard protocol may be pre-stored in the memory of the terminal and the base station, or embodied as hardware circuits or software codes of the terminal and the network device.

[0065] In the embodiments of the present application, the wireless communication device may be the above-mentioned device providing wireless network services or the device using wireless network services. The embodiments of the present application aim to solve the problem of a large transceiver occupying a large area due to supporting multiple services. The following is an introduction using the wireless communication device as a device using wireless network services, and the multiple services supported by the wireless communication device as ETC services and C-V2X services. The scope of application of the embodiments of the present application is not limited to these two services. Based on this, Figure 1 A schematic diagram of a scenario applicable to an embodiment of the present application is shown as an example. Figure 1 A scenario to which an embodiment of the present application is applicable is introduced.

[0066] like Figure 1 As shown, the scene includes a toll station, which may have multiple lanes. Vehicles drive through each lane to the toll station, and leave the toll station after completing the toll collection. The toll station may include an ETC dedicated toll lane 105, and an ETC toll collection device 104 is arranged on the ETC dedicated toll lane 105. The ETC toll collection device 104 can emit a signal, and the signal radiation range of the ETC toll collection device 104 can be called an ETC toll collection area 106.

[0067] like Figure 1As shown, a wireless communication device 102 is provided on the vehicle 100. When the wireless communication device 102 moves to the ETC charging area 106, the wireless communication device 102 can receive a signal sent by the ETC charging device 104. After receiving the signal, the wireless communication device 102 can send information such as an identity identifier, and then the ETC charging device 104 can calculate the fee that the vehicle 100 corresponding to the communication device needs to pay after receiving the information, and then use computer networking technology to perform back-end settlement processing with the bank, so as to achieve the purpose of paying the highway or bridge fee without stopping when the vehicle passes through the highway or bridge toll station.

[0068] The wireless communication device 102 may be an independent terminal device, such as a mobile phone, a tablet computer, etc., or may be a module, a component installed in the vehicle 100, or the vehicle itself. The vehicle 100 corresponding to the wireless communication device 102 refers to a device, a module or a chip that can process the road usage fee of the vehicle 100, such as a mobile phone of a user driving the vehicle 100, or a module, a component inside the vehicle 100, or the vehicle itself.

[0069] The embodiments of the present application provide a possible ETC related parameter. With the development of technology or changes in regions, the ETC related parameters may also change.

[0070] In a possible example, ETC is mainly deployed at 5.8 GHz in the country, and the main radio frequency parameters supported are as follows:

[0071] Frequency band (also called frequency range): The frequency band corresponding to downlink data is 5825-5845MHz; the frequency band corresponding to uplink data is 5787.5-5802.5MHz;

[0072] Channel bandwidth: 5MHz;

[0073] Modulation methods: amplitude shift keying (ASK) and frequency-shift keying (FSK).

[0074] The communication device transmits signals through the RF transmission channel based on ETC, and each device in the RF transmission channel needs to meet the relevant requirements of ETC. The communication device transmits signals through the RF receiving channel based on ETC, and each device in the RF receiving channel needs to meet the relevant requirements of ETC.

[0075] like Figure 1As shown, the wireless communication device 102 also supports C-V2X services. The wireless communication device 102 can receive data corresponding to the C-V2X services sent by the network device 101 or the roadside unit 103, which can assist the intelligent driving and other services of the vehicle 100 corresponding to the communication device. The wireless communication device 102 can also transmit the information collected by the vehicle 100 corresponding to the wireless communication device 102 to other vehicles supporting the C-V2X services, or report it to the network device 101 or the roadside unit 103.

[0076] The road side unit (RSU) 103 can be used to send vehicle to everything (V2X) messages to the terminal device through direct communication (such as PC5) or dedicated short range communications (DSRC). V2X messages can carry dynamic information or other information that needs to be notified to the terminal device. Among them, the communication method between the road side unit and the terminal device can also be called vehicle to infrastructure (V2I) communication.

[0077] The roadside unit 103 can also be used to communicate with network devices. The roadside unit 103 can report dynamic information occurring within the jurisdiction to the network device of the Internet of Vehicles, for example, the dynamic information can be reported through a roadside information (RSI) message. The present application does not specifically limit the specific deployment form of the roadside unit, which can be a terminal device, a mobile or non-mobile terminal device, a network device or a chip, etc.

[0078] A possible C-V2X related parameter is provided in an embodiment of the present application. With the development of technology or changes in regions, the C-V2X related parameters may also change.

[0079] In a possible example, C-V2X is mainly deployed on B47 / n47, and the main RF parameters supported are as follows:

[0080] Frequency band (also called frequency range): 5855-5925MHz;

[0081] Channel bandwidth: 10 / 20 / 30 / 40MHz;

[0082] Modulation methods: quadrature phase shift keying (QPSK), 16-bit quadrature amplitude modulation (QAM), 64QAM and 256QAM.

[0083] The communication device transmits signals through the RF transmission channel based on C-V2X, and each component in the RF transmission channel needs to meet the relevant requirements of C-V2X. The communication device transmits signals through the RF reception channel based on C-V2X, and each component in the RF reception channel needs to meet the relevant requirements of C-V2X.

[0084] It should be noted that C-V2X and ETC are used as examples in the embodiments of the present application, but the scope of application of the embodiments of the present application is not limited to this.

[0085] Based on the above, Figure 2 This is a schematic diagram of the structure of a wireless communication device provided in an embodiment of the present application. The communication device may be a device providing wireless network services or a device using wireless network services in an embodiment of the present application. Figure 2 As shown, the communication device may include multiple components, such as: application subsystem, memory, massive storage, baseband subsystem, radio frequency integrated circuit (RFIC), radio frequency front end (RFFE) device, and antenna (ANT). These components can be coupled through various interconnection buses or other electrical connection methods.

[0086] Figure 2 In , ANT_1 represents the first antenna, ANT_N represents the Nth antenna, and N is a positive integer greater than 1. Tx represents the transmission path, Rx represents the reception path, and different numbers represent different paths. Each path can represent a signal processing channel. Among them, FBRx represents the feedback reception path, PRx represents the main reception path, and DRx represents the diversity reception path. HB represents high frequency, and LB represents low frequency, and the two refer to the relative high and low frequencies. BB represents baseband. It should be understood that Figure 2 The marks and components in the figure are for illustration purposes only and are only used as a possible implementation. The embodiments of the present application also include other implementations. For example, the communication device may include more or fewer paths and more or fewer components.

[0087] The application subsystem can be used as the main control system or main computing system of the communication device to run the main operating system and application programs, manage the software and hardware resources of the entire communication device, and provide a user interface for users. In addition, the application subsystem can also include driver software related to other subsystems (such as the baseband subsystem).

[0088] The application subsystem may include one or more processors. Multiple processors may be multiple processors of the same type, or may include a combination of multiple types of processors. In the present application, the processor may be a general-purpose processor or a processor designed for a specific field. For example, the processor may be a central processing unit (CPU), a digital signal processor (DSP), or a microcontroller (MCU). The processor may also be a graphics processing unit (GPU), an image signal processor (ISP), an audio signal processor (ASP), and an AI processor specially designed for artificial intelligence (AI) applications. AI processors include, but are not limited to, neural network processing units (NPUs), tensor processing units (TPUs), and processors referred to as AI engines.

[0089] Figure 2 In the invention, the RF integrated circuit (including RFIC 1, and one or more optional RFIC 2) and the RF front-end device can together constitute the RF subsystem. According to the different receiving or transmitting paths of the signal, the RF subsystem can also be divided into an RF receiving channel (RF receive path) and an RF transmitting channel (RF transmit path). Among them, the RF receiving channel can receive the RF signal through the antenna, process the RF signal (such as amplification, filtering and down-conversion) to obtain the baseband signal, and pass it to the baseband subsystem. The RF transmitting channel can receive the baseband signal from the baseband subsystem, process the baseband signal (such as up-conversion, amplification and filtering) to obtain the RF signal, and finally radiate the RF signal into space through the antenna. The RF integrated circuit can be called a RF processing chip or a RF chip.

[0090] Specifically, the RF subsystem may include electronic devices such as antenna switches, antenna tuners, low noise amplifiers (LNA), power amplifiers (PA), mixers, local oscillators (LO), filters, etc., which can be integrated into one or more chips as needed. RF integrated circuits can be called RF processing chips or RF chips. RF front-end devices can also be independent chips. RF chips are sometimes also called receivers, transmitters, transceivers or transceivers. With the evolution of technology, antennas can sometimes be considered as part of the RF subsystem and can be integrated into the chip of the RF subsystem. Antennas, RF front-end devices and RF chips can all be manufactured and sold separately. Of course, the RF subsystem can also use different devices or different integration methods based on power consumption and performance requirements. For example, some devices belonging to the RF front end are integrated into the RF chip, and even the antenna and RF front-end devices are integrated into the RF chip. The RF chip can also be called an RF antenna module or antenna module.

[0091] Similar to the RF subsystem, which mainly processes RF signals, the baseband subsystem, as the name implies, mainly processes baseband signals. The baseband subsystem can extract useful information or data bits from the baseband signal, or convert information or data bits into baseband signals to be sent. These information or data bits can be data representing user data such as voice, text, video, or control information. For example, the baseband subsystem can implement signal processing operations such as modulation and demodulation, encoding, and decoding. For different wireless access technologies, such as 5G NR and 4G LTE, the baseband signal processing operations are not exactly the same.

[0092] In addition, since the radio frequency signal is usually an analog signal, the signal processed by the baseband subsystem is mainly a digital signal, and an analog-to-digital converter is also required in the communication device. In the embodiment of the present application, the analog-to-digital converter can be set in the baseband subsystem or in the radio frequency subsystem. The analog-to-digital converter includes an analog-to-digital converter (ADC) that converts an analog signal into a digital signal, and a digital-to-analog converter (DAC) that converts a digital signal into an analog signal.

[0093] Similar to the application subsystem, the baseband subsystem may also include one or more processors. In addition, the baseband subsystem may also include one or more hardware accelerators (HAC). Hardware accelerators can be used to specifically complete some sub-functions with high processing overhead, such as data packet assembly and parsing, data packet encryption and decryption, etc. These sub-functions can also be implemented using general-purpose processors, but due to performance or cost considerations, it may be more appropriate to use hardware accelerators. In a specific implementation, the hardware accelerator is mainly implemented using an application-specific integrated circuit (ASIC). Of course, the hardware accelerator may also include one or more relatively simple processors, such as an MCU.

[0094] In the embodiment of the present application, the baseband subsystem and the radio frequency subsystem together constitute a communication subsystem, which provides a wireless communication function for the communication device. Generally, the baseband subsystem is responsible for managing the software and hardware resources of the communication subsystem, and can configure the working parameters of the radio frequency subsystem. The sub-operating system of the communication subsystem can be run in the processor of the baseband subsystem, and the sub-operating system is often an embedded operating system or a real-time operating system, such as a VxWorks operating system or Qualcomm's QuRT system.

[0095] The baseband subsystem can be integrated into one or more chips, which can be called a baseband processing chip or a baseband chip. The baseband subsystem can be a standalone chip, which can be called a modem or a modem chip. The baseband subsystem can be manufactured and sold in units of modem chips. Modem chips are sometimes also called baseband processors or mobile processors. In addition, the baseband subsystem can be further integrated into a larger chip, which can be manufactured and sold in units of larger chips. This larger chip can be called a system chip, a chip system, or a system on a chip (SoC), or simply a SoC chip. The software components of the baseband subsystem can be built into the hardware components of the chip before the chip leaves the factory, or can be imported from other non-volatile memories into the hardware components of the chip after the chip leaves the factory, or these software components can be downloaded and updated online through the network.

[0096] In addition, the communication device also includes a memory, such as Figure 2In the application subsystem and the baseband subsystem, one or more caches can be included respectively. In the specific implementation, the memory can be divided into volatile memory and non-volatile memory (NVM). Volatile memory refers to a memory in which the data stored inside will be lost when the power supply is interrupted. At present, volatile memory is mainly random access memory (RAM), including static random access memory (SRAM) and dynamic random access memory (DRAM). Non-volatile memory refers to a memory in which the data stored inside will not be lost even if the power supply is interrupted. Common non-volatile memories include read-only memory (ROM), optical disks, magnetic disks, and various memories based on flash memory technology. Generally speaking, volatile memory can be used for memory and cache, and non-volatile memory, such as flash memory, can be used for large-capacity storage.

[0097] Combination Figure 2 From the perspective of wireless communication, the baseband subsystem is connected to one or more transceivers, which transmit and receive signals through antennas. In the prior art, if there are signals in two frequency bands, two independent transceivers may need to be set up respectively. For example, for C-V2X and ETC technologies, two independent transceivers need to be set up to realize the transmission of data corresponding to the two technologies. Each transceiver includes at least one RF receiving channel and at least one RF transmitting channel. It can be seen that this design causes the transceiver to occupy a large area, which is not conducive to the miniaturization and thinness of wireless communication devices. In addition, the design redundancy is high, and the design cost is also high.

[0098] Based on this problem, a solution is provided in the embodiment of the present application, which allows C-V2X and ETC to reuse the same set of transceivers. Compared with the solution that requires two independent sets of transceivers, this solution can reduce the occupied area of ​​the transceiver and reduce the cost of the wireless communication device, which may reduce the design area and cost of the RF front-end by about 40% respectively. It can also reduce design redundancy and improve integration. And because it can support a variety of business scenarios, it can also increase the comprehensive system benefits of the applicable scenarios of the wireless communication device. And it can also increase the comprehensive competitiveness of the vehicle-mounted solution of the modem (modem) using the solution provided in the embodiment of the present application.

[0099] On the other hand, based on the 3GPP standard definition, C-V2X (LTE-V / NR-V) is mainly deployed in B47 / n47 (5.9GHz), which is close to the ETC (5.8GHz) frequency band. Therefore, if the same set of transceivers is used to support these two services, the range of parameters that the devices of the RF channel in the transceiver need to support will not be too large. It can be seen that from the perspective of reducing interference to ETC, it is more reasonable to consider the coexistence design with the ETC system, that is, to reuse a set of transceivers for ETC and C-V2X services.

[0100] Based on the above and Figure 2 The wireless communication device shown, Figure 3 The schematic diagram of the structure of another wireless communication device provided in the embodiment of the present application is exemplarily shown. The wireless communication device may be a device providing wireless network services or a device using wireless network services in the embodiment of the present application.

[0101] like Figure 3 As shown, the wireless communication device may include a processor 326, and the processor may be coupled to a radio frequency processing circuit. The radio frequency processing circuit may include at least one radio frequency transmission channel and at least one radio frequency reception channel. Figure 3 In the figure, the RF processing circuit includes a RF transmission channel 33 and a RF receiving channel 34. The processor is used to set one or more working parameters of the RF processing circuit to achieve the purpose of setting the working frequency band of the RF processing circuit. Figure 3 Some common components used for radio frequency signal processing in wireless communication devices are shown. It should be understood that Figure 3 Although only one RF receiving channel and one RF transmitting channel are shown, the wireless communication device in the embodiment of the present application is not limited to this, and the wireless communication device may include one or more RF receiving channels and one or more RF transmitting channels.

[0102] In one possible case, the RF transmission channel may include a DAC, a mixer, a PA, and a filter. The components included in the RF transmission channel are only examples, and in actual applications, more components may be added to the RF transmission channel, or one or more components shown in the figure may be deleted.

[0103] like Figure 3As shown, the RF transmission channel 33 may include a DAC 331, a low pass filter (LPF) 332, a mixer 333 (the mixer 333 may also be called an uplink mixer), a variable gain amplifier 335, a PA 336, a band pass filter (BPF) 337, and may also include a phase locked loop (PLL) 334. The phase locked loop may use the voltage generated by phase synchronization to tune the local oscillator to generate a target frequency. Figure 3 The RF transmission channel 33 is connected to the antenna 35 and is used to process the baseband signal from the baseband subsystem 32 (such as up-conversion, amplification and filtering) to obtain a RF signal, and finally radiate the RF signal into space through the antenna.

[0104] like Figure 3 As shown, in the embodiment of the present application, the RF transmission channel 33 can have the ability to operate in multiple frequency bands. When the operating frequency band of the RF transmission channel 33 changes, one or more operating parameters of the RF transmission channel need to be adjusted so that the frequency band in which the RF transmission channel 33 operates changes.

[0105] For example, if Figure 3 The wireless communication device shown is a device that uses wireless network services. The radio frequency transmission channel 33 supports data transmission for C-V2X services and ETC services, that is, it supports operation in the following frequency bands: the frequency band corresponding to the C-V2X service is 5855-5925 MHz, and the frequency band corresponding to the uplink data of the ETC service is 5787.5-5802.5 MHz.

[0106] Since the RF transmission channel 33 supports data transmission of C-V2X services and ETC services, based on the relevant parameters of C-V2X and relevant parameters of ETC mentioned above, each device in the RF transmission channel 33 can meet at least one of the following requirements:

[0107] The DAC331 sampling rate supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0108] The DAC331 bit width supports ASK / FSK and QPSK / 16QAM / 64QAM / 256QAM uplink modulation modes;

[0109] The parameter configuration of the low-pass filter 332 supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0110] The phase-locked loop 334 may operate in the frequency range of 5787.5-5925 MHz; or,

[0111] The passband of the bandpass filter 337 covers the frequency range of 5787.5-5925 MHz.

[0112] When the working frequency band of the RF transmission channel 33 changes, one or more working parameters in the RF transmission channel 33 may be configured to adjust the working frequency band of the RF transmission channel 33. Specifically, at least one of the following may be configured:

[0113] The sampling rate of DAC331; the bit width of DAC331; the bandwidth of low-pass filter 332; or the frequency of phase-locked loop 334.

[0114] In addition to the above content, when the working frequency band of the RF transmission channel 33 changes, one or more other working parameters of the RF transmission channel 33 may also be configured, which is not limited in the embodiment of the present application.

[0115] In the embodiment of the present application, the RF receiving channel may include an ADC, a filter, a mixer, and an LNA. The components included in the RF receiving channel are only examples. In actual applications, more components may be added to the RF receiving channel, or one or more components shown in the figure may be deleted.

[0116] like Figure 3 As shown, the RF receiving channel 34 may include an ADC 341, a low-pass filter 342, a mixer 343, an LNA 345, an LNA 346, a band-pass filter 347, and may also include a phase-locked loop 344. The phase-locked loop 344 is coupled to the mixer 343, and the low-pass filter 342 is coupled to the mixer 343. The phase-locked loop 344 is the content of the local oscillator in the aforementioned content. Figure 3 The RF receiving channel 34 is connected to the antenna 36 for receiving RF signals through the antenna 36 , processing the RF signals (such as amplifying, filtering and down-converting) to obtain baseband signals, and transmitting the baseband signals to the baseband subsystem 32 .

[0117] In the embodiment of the present application, the RF receiving channel 34 may be referred to as a first RF receiving channel, the ADC 341 may be referred to as a first ADC, the low-pass filter 342 may be referred to as a first low-pass filter, the mixer 343 may be referred to as a first mixer, and the phase-locked loop 344 may be referred to as a first phase-locked loop.

[0118] In an embodiment of the present application, if only one RF receiving channel is included, the RF receiving channel may have the ability to operate in multiple frequency bands. If multiple RF receiving channels are included, each RF receiving channel may only support one operating frequency band, that is, it may only operate in one frequency band, so that at least two of the multiple RF receiving channels may operate in different frequency bands, thereby achieving the purpose of receiving signals of at least two frequency bands through multiple RF receiving channels. In another possible implementation, the instant wireless communication device includes multiple RF receiving channels, and at least one of the RF receiving channels may have the ability to operate in multiple frequency bands, thereby achieving the purpose of receiving signals of at least two frequency bands through multiple RF receiving channels.

[0119] Combine the following Figure 3 The RF receiving channel 34 in the figure introduces the situation that a RF receiving channel has the ability to work in multiple frequency bands.

[0120] like Figure 3 As shown, in the embodiment of the present application, the RF receiving channel 34 can have the ability to operate in multiple frequency bands. When the operating frequency band of the RF receiving channel 34 changes, one or more operating parameters of the RF transmitting channel need to be adjusted so that the frequency band in which the RF receiving channel 34 operates changes.

[0121] For example, if Figure 3 The wireless communication device shown is a device that uses wireless network services. The radio frequency receiving channel 34 supports data reception for C-V2X services and ETC services, that is, it supports operation in the following frequency bands: the frequency band corresponding to C-V2X services is 5855-5925 MHz, and the frequency band corresponding to downlink data of ETC services is 5825-5845 MHz.

[0122] Since the RF receiving channel 34 supports data reception of C-V2X services and ETC services, based on the relevant parameters of C-V2X and relevant parameters of ETC mentioned above, each device in the RF receiving channel 34 can meet at least one of the following requirements:

[0123] The ADC341 sampling rate supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0124] The ADC341 bit width supports ASK / FSK and QPSK / 16QAM / 64QAM / 256QAM uplink modulation modes;

[0125] The parameter configuration of the low-pass filter 342 supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0126] The phase-locked loop 344 can operate in the frequency range of 5825-5925 MHz;

[0127] The passband of the bandpass filter 347 covers the frequency range of 5825-5925 MHz.

[0128] When the working frequency band of the RF receiving channel 34 changes, one or more working parameters of the RF receiving channel 34 may be configured to adjust the working frequency band of the RF receiving channel 34. Specifically, at least one of the following may be configured:

[0129] The sampling rate of ADC 341 ; the bit width of ADC 341 ; the bandwidth of low-pass filter 342 ; or the frequency of phase-locked loop 344 .

[0130] In addition to the above content, when the operating frequency band of the RF receiving channel 34 changes, one or more other operating parameters of the RF receiving channel 34 may also be configured, which is not limited in the embodiment of the present application.

[0131] It should be noted that when an RF receiving channel only supports working in one frequency band, such as only supporting working in the C-V2X frequency band, the parameters supported by each device on the RF receiving channel can be set only according to the relevant parameters of the C-V2X service. For example, if the RF receiving channel 34 only supports the reception of data of the C-V2X service, the RF receiving channel 34 can meet at least one of the following conditions:

[0132] The ADC341 sampling rate supports 10 / 20 / 30 / 40MHz bandwidth specifications;

[0133] The ADC341 bit width supports QPSK / 16QAM / 64QAM / 256QAM uplink modulation modes;

[0134] The parameter configuration of the low-pass filter 342 supports 10 / 20 / 30 / 40MHz bandwidth specifications;

[0135] The phase-locked loop 344 can operate in the frequency range of 5855-5925MHz;

[0136] The passband of the bandpass filter 347 covers the frequency range of 5855-5925 MHz.

[0137] like Figure 3 As shown, the baseband subsystem 32 can be connected to the application processor (AP) 31, and the AP 31 can be Figure 2A module in the application subsystem in AP31. AP31 may include one or more application modules. For example, it may include the C-V2X application (Application, APP) module and the ETC App module involved in the embodiments of the present application. Among them, the C-V2X APP module is used to generate data corresponding to the C-V2X service, and can also be used to process the received data of the C-V2X service. The ETC App module is used to generate data corresponding to the ETC service, and can also be used to process the received data of the ETC service.

[0138] In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are transmitted through the RF transmission channel 33. In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are received through the RF receiving channel 34. The specific transmission strategy and reception strategy of the data of the two services will be introduced in detail later and will not be described here.

[0139] based on Figure 3 The content shown, Figure 4a exist Figure 3 Based on FIG. , another possible structural diagram of a wireless communication device is shown, such as Figure 4a As shown, the wireless communication device includes a radio frequency transmission channel and two radio frequency receiving channels, which are Figure 3 The RF transmitting channel 33, the RF receiving channel 34 and the RF receiving channel 37 in the embodiment.

[0140] like Figure 4a As shown, the RF receiving channel 37 may include an ADC 371, a low-pass filter 372, a mixer 373, an LNA 375, an LNA 376, and may also include a phase-locked loop 374. The phase-locked loop 374 is coupled to the mixer 373, and the low-pass filter 372 is coupled to the mixer 373. The phase-locked loop 374 is the content of the local oscillator in the aforementioned content. Figure 4a The intermediate RF receiving channel 37 is connected to the antenna 35 , and is used to receive RF signals through the antenna 35 , process the RF signals (such as amplifying, filtering, and down-converting) to obtain baseband signals, and transmit them to the baseband subsystem 32 .

[0141] In the embodiment of the present application, the RF receiving channel 37 may be referred to as a second RF receiving channel, the ADC 371 may be referred to as a second ADC, the low-pass filter 372 may be referred to as a second low-pass filter, the mixer 373 may be referred to as a second mixer, and the phase-locked loop 374 may be referred to as a second phase-locked loop.

[0142] like Figure 4a As shown in FIG. 3 , due to the addition of a new RF receiving channel 37, some device architectures are changed. Figure 4aIn the embodiment, the RF receiving channel 37 and the RF transmitting channel 33 share the same group of antennas 35, and a switch 338 is set after the bandpass filter 337. The switch 338 (the switch 338 in the embodiment of the present application can be called the third switch) is used to switch the antenna 35 between the RF transmitting channel 33 and the RF receiving channel 37. The bandpass filter 337 can be a filter shared by the RF transmitting channel 33 and the RF receiving channel 37. When the antenna 35 is connected to the RF transmitting channel 33, the antenna 35 is used to transmit signals, and when the antenna 35 is connected to the RF receiving channel 37, the antenna 35 is used to receive signals. Obviously, when the RF transmitting channel 33 is connected to the antenna 35, since the RF receiving channel 37 is not connected to the antenna 35, the signal cannot be received through the RF receiving channel 37. When the RF receiving channel 37 is connected to the antenna 35, since the RF transmitting channel 33 is not connected to the antenna 35, the signal cannot be sent through the RF transmitting channel 33.

[0143] Combination Figure 4a For example, in a possible implementation, if there is no data to be sent, that is, there is no need to send data through the RF transmission channel 33, the antenna 35 can be connected to the RF receiving channel 37 through the switch 338, so that data is received through the two RF receiving channels 37. When there is data to be sent, that is, the data needs to be sent through the RF transmission channel 33, the antenna 35 can be connected to the RF transmission channel 33 through the switch 338, so that the data is sent through the RF transmission channel 33.

[0144] Figure 4a The phase-locked loop 374 connected to the mixer 373 in the RF receiving channel 37 is only used to adjust the working frequency band of the RF receiving channel 37. Figure 4a As shown, since the RF receiving channel 37 and the RF receiving channel 34 can adjust the working frequency bands respectively through two different phase-locked loops, it is not necessary to require that the working frequency bands of the two RF receiving channels of the wireless communication device are the same, and they can also be different. In this way, the flexibility of the working frequency band of a single RF receiving channel can be improved. For example, if the RF receiving channel 37 is currently working in the third frequency band, the RF receiving channel 34 can currently work in the fourth frequency band, or it can work in the third frequency band. It can be flexibly set and does not necessarily require the same as the current working frequency band of the RF receiving channel 37. In the embodiment of the present application, the third frequency band includes the downlink transmission frequency band of C-V2X, and the fourth frequency band includes the downlink transmission frequency band of ETC.

[0145] It should be noted that if Figure 3The wireless communication device shown is a device that uses wireless network services. The radio frequency receiving channel 37 supports data reception for C-V2X services and ETC services, that is, it supports operation in the following frequency bands: 5855-5925 MHz corresponding to C-V2X services, and 5825-5845 MHz corresponding to downlink data for ETC services.

[0146] Since the RF receiving channel 37 supports data reception of C-V2X services and ETC services, based on the relevant parameters of C-V2X and relevant parameters of ETC mentioned above, each device in the RF receiving channel 37 can meet at least one of the following requirements:

[0147] The ADC371 sampling rate supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0148] The ADC371 bit width supports ASK / FSK and QPSK / 16QAM / 64QAM / 256QAM uplink modulation modes;

[0149] The parameter configuration of the low-pass filter 372 supports 5 / 10 / 20 / 30 / 40MHz bandwidth specifications;

[0150] The phase-locked loop 374 can operate in the frequency range of 5825-5925 MHz.

[0151] Since the RF receiving channel 37 and the RF transmitting channel 33 share the same bandpass filter 337, and since Figure 3 In the example, when the RF transmission channel 33 supports the frequency bands corresponding to the C-V2X service and the ETC service, the passband of the bandpass filter 337 covers the frequency range of 5787.5-5925MHz, that is, the frequency band corresponding to the C-V2X service and the frequency band corresponding to the downlink data of the ETC service have been covered. Therefore, in Figure 4a In the example of FIG. 3 , the passband coverage of the bandpass filter 347 may still be 5787.5-5925 MHz.

[0152] Similarly, when the operating frequency band of the RF receiving channel 37 changes, one or more operating parameters of the RF receiving channel 37 may be configured, for example, at least one of the following may be configured:

[0153] The sampling rate of ADC 371 ; the bit width of ADC 371 ; the bandwidth of low-pass filter 372 ; or the frequency of phase-locked loop 374 .

[0154] In addition to the above content, when the operating frequency band of the RF receiving channel 37 changes, one or more other operating parameters of the RF receiving channel 37 may also be configured, which is not limited in the embodiment of the present application.

[0155] It should be noted that in an RF channel (including an RF receiving channel and an RF transmitting channel) in the embodiment of the present application, the operating parameters of each device included in the RF channel may be related to the operating frequency band that the RF channel needs to support, and may be determined based on the specific operating frequency band that needs to be supported. The operating parameters of each device in each RF channel provided in the embodiment of the present application are merely examples.

[0156] Figure 4a The RF transmission channel 33 may be referred to as the main set RF transmission channel, or the main RF transmission channel. The RF receiving channel 37 may be referred to as the main set RF receiving channel, or the main RF receiving channel. The RF receiving channel 34 may be referred to as the diversity RF receiving channel.

[0157] In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are transmitted through the RF transmission channel 33. In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are received through the RF receiving channel 34 and the RF receiving channel 37. The specific transmission strategy and reception strategy of the data of the two services will be introduced in detail later and will not be described here.

[0158] based on Figure 4a The wireless communication device structure diagram shown in FIG. Figure 4b A schematic diagram showing another possible structure of a wireless communication device is shown. Figure 4a The difference is: Figure 4b The phase-locked loop 374 connected to the mixer 373 in the RF receiving channel 37 is not only connected to the mixer 373, but also used to connect to the mixer 343 in the RF receiving channel 34. That is, the RF receiving channel 34 can share a phase-locked loop 374 with the RF receiving channel 37. Based on this, the RF receiving channel 37 and the RF receiving channel 34 can operate in the same frequency band. For example, if the RF receiving channel 37 currently operates in the third frequency band, the RF receiving channel 34 must also currently operate in the third frequency band. If the RF receiving channel 37 currently operates in the fourth frequency band, the RF receiving channel 34 must also currently operate in the fourth frequency band.

[0159] In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are transmitted through the RF transmission channel 33. In the embodiment of the present application, the data corresponding to the C-V2X service and the ETC service are received through the RF receiving channel 34 and the RF receiving channel 37. The specific transmission strategy and reception strategy of the data of the two services will be introduced in detail later and will not be described here.

[0160] based on Figure 4a and Figure 4b The working modes of the two wireless communication devices shown are: Figure 4cA schematic diagram showing another possible structure of a wireless communication device is shown. Figure 4a The difference is: Figure 4c The phase-locked loop 374 is connected to the mixer 343 through the switch 378, and the phase-locked loop 344 is connected to the mixer 343 through the switch 348. In the embodiment of the present application, the switch 348 may be referred to as a first switch, and the switch 378 may be referred to as a second switch.

[0161] When the switch 348 is closed and the switch 378 is open, the phase-locked loop 344 is used to adjust the working frequency band of the RF receiving channel 34, and the phase-locked loop 374 is used to adjust the working frequency band of the RF receiving channel 37. In this way, the RF receiving channel 37 and the RF receiving channel 34 can operate at different frequency bands. Figure 4a The operating modes of the wireless communication devices shown are the same.

[0162] like Figure 4c As shown, when the switch 348 is opened and the switch 378 is closed, the phase-locked loop 374 is used to adjust the operating frequency bands of the RF receiving channel 37 and the RF receiving channel 34. In this way, the RF receiving channel 37 and the RF receiving channel 34 can operate in the same frequency band. Figure 4b The operating modes of the wireless communication devices shown are the same.

[0163] It can be seen that Figure 4c The wireless communication device shown can realize the wireless communication device through switch 348 and switch 378. Figure 4b The operating modes shown and Figure 4a Switch between the operating modes shown.

[0164] based on Figure 4c content, Figure 5 The schematic diagram of another wireless communication device is shown as an example. Figure 5 As shown, the baseband subsystem 32 may include a data selector (Multiplexer, MUX) 325, and the MUX 325 may be connected to a C-V2X transmit (transport, TX) module 321, a C-V2X receive (receive, RX) module 322, an ETC TX module 323, and an ETC RX module 324.

[0165] Among them, any one or more modules among the C-V2X transmit (TX) module 321, the C-V2X receive (RX) module 322, the ETCTX module 323 and the ETC RX module 324 can be a baseband processor (BBP).

[0166] like Figure 5As shown, MUX325 can be a physical gating switch or a logical gating switch, which can be used to gating the connection between the RF, baseband path and BBP. When the RF transmission channel 33 is connected with the C-V2X TX module 321 through MUX325, the data to be transmitted corresponding to the C-V2X service can be transmitted through the RF transmission channel 33. When the RF transmission channel 33 is connected with the ETC TX module 323 through MUX325, the RF transmission channel 33 can be used to transmit the data to be transmitted corresponding to the ETC service.

[0167] Similarly, when the RF receiving channel 37 is connected to the C-V2X RX module 322 through MUX325, the data received through the RF receiving channel 37 can be transmitted to the C-V2X RX module 322, so that the C-V2X RX module 322 processes the received data corresponding to the C-V2X service. When the RF receiving channel 37 is connected to the ETC RX module 324 through MUX325, the data received through the RF receiving channel 37 can be transmitted to the ETC RX module 324, so that the ETC RX module 324 processes the received data corresponding to the ETC service.

[0168] Similarly, when the RF receiving channel 34 is connected to the C-V2X RX module 322 through MUX325, the data received through the RF receiving channel 34 can be transmitted to the C-V2X RX module 322, so that the C-V2X RX module 322 processes the received data corresponding to the C-V2X service. When the RF receiving channel 34 is connected to the ETC RX module 324 through MUX325, the data received through the RF receiving channel 34 can be transmitted to the ETC RX module 324, so that the ETC RX module 324 processes the received data corresponding to the ETC service.

[0169] It should be noted that Figure 5 The contents included in the baseband subsystem 32 shown in FIG. 3 may be the same as those previously described. Figures 3 to 4c Combining any of the solutions, Figure 5 In the Figure 4c Combined with examples.

[0170] In combination with the above Figures 1 to 5 A possible communication method provided by an embodiment of the present application is introduced.

[0171] In order to more clearly introduce the solution provided by the embodiment of the present application, the wireless communication device is a device that uses wireless network services, the first frequency band includes the uplink transmission frequency band of C-V2X, the second frequency band includes the uplink transmission frequency band of ETC, the third frequency band includes the downlink transmission frequency band of C-V2X, and the fourth frequency band includes the downlink transmission frequency band of ETC. In a possible example, at least one of the first frequency band, the second frequency band, the third frequency band, or the fourth frequency band satisfies the following content:

[0172] The first frequency band includes 5855-5925MHz;

[0173] The second frequency band includes 5787.5-5802.5MHz;

[0174] The third frequency band includes 5855-5925MHz; or,

[0175] The fourth frequency band includes 5825-5845MHz.

[0176] Figure 6 The flowchart of a signal transmission method provided by an embodiment of the present application is exemplarily shown. The execution subject of the communication method can be a module with a certain processing capability in the wireless communication device, which can be called a processor or a processing module. The processor can be Figure 2 One or more processors in the baseband subsystem in the Figure 2 The processor can also be the aforementioned Figure 5 The processor 326 in the processor. The processor can also be logically divided into multiple modules according to the function, for example, it can be divided into a priority decision module and a front-end control module, wherein the front-end control module can be used to adjust the working parameters of each device of the RF transmission channel and the RF reception channel, and the priority decision module can be used to determine the frequency band of the RF transmission channel and the RF reception channel. The division of the modules will not be repeated here.

[0177] like Figure 6 As shown, the method includes:

[0178] S601, the processor enables at least one RF receiving channel of the wireless communication device to operate in the fourth frequency band in at least one time period, so as to receive downlink data corresponding to the ETC service in at least one time period. Enable at least one RF receiving channel of the wireless communication device to operate in the third frequency band in at least one time period, so as to receive downlink data corresponding to the C-V2X service in at least one time period. Enable the RF transmitting channel to operate in the first frequency band, so as to transmit data corresponding to the C-V2X service. And when it is necessary to transmit data of the first frequency band through the RF transmitting channel, transmit the data of the first frequency band at the first power.

[0179] The first power may be the maximum power defined by the standard corresponding to the C-V2X service, or a value close to the maximum power.

[0180] Combination Figure 5 For example, in a possible implementation, if there is no data to be sent (neither data corresponding to the C-V2X service to be sent nor data corresponding to the ETC service to be sent), that is, there is no need to send data through the RF transmission channel 33, the antenna 35 can be connected to the RF receiving channel 37 through the switch 338, so as to receive data through the two RF receiving channels 37. When there is data to be sent (there is data corresponding to the C-V2X service to be sent, and / or data corresponding to the ETC service), that is, data needs to be sent through the RF transmission channel 33, the antenna 35 can be connected to the RF transmission channel 33 through the switch 338, so as to send data through the RF transmission channel 33.

[0181] Combination Figure 5 , the RF transmission channel 33 operates in the first frequency band and is used to receive data corresponding to the C-V2X service.

[0182] There are several possible implementations for the RF receiving channel 34 and the RF receiving channel 37, and several of them are listed below:

[0183] Possible implementation a1: close switch 348 and open switch 378. RF receiving channel 34 operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. When RF receiving channel 34 operates in the third frequency band, RF receiving channel 34 can be used to receive data in the third frequency band. When RF receiving channel 34 operates in the fourth frequency band, RF receiving channel 34 can be used to receive data in the fourth frequency band. RF receiving channel 37 can operate in the third frequency band.

[0184] In a possible implementation, the RF receiving channel 34 may periodically operate in the third frequency band with a third duration as a period, and periodically operate in the fourth frequency band with a fourth duration as a period. The third duration and the fourth duration may be equal or different.

[0185] Possible implementation a2: close the switch 348 and open the switch 378. The RF receiving channel 37 operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. The RF receiving channel 34 can operate in the third frequency band.

[0186] Possible implementation a3: the switch 348 is closed and the switch 378 is opened. The RF receiving channel 37 operates in the third frequency band, and the RF receiving channel 34 operates in the fourth frequency band.

[0187] Possible implementation a4: the switch 348 is closed and the switch 378 is opened. The RF receiving channel 34 operates in the third frequency band, and the RF receiving channel 37 operates in the fourth frequency band.

[0188] Possible implementation a5: switch 378 is closed, and switch 348 is open. RF receiving channel 34 operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. RF receiving channel 37 also operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. That is, phase-locked loop 374 is used to provide signals for RF receiving channel 37 and RF receiving channel 34.

[0189] It should be noted that in the embodiment of the present application, it is mentioned that when a RF receiving channel works in two frequency bands in a time division multiplexing manner, the RF receiving channel can work in the two frequency bands periodically with a fixed duration as a period, or it can work in the two frequency bands periodically with a set of duration values ​​as a variable period, that is, the RF receiving channel can switch between the two working frequency bands with a set of preset duration values.

[0190] When the RF receiving channel operates in different frequency bands, one or more operating parameters of the RF receiving channel need to be configured. The relevant configured parameters can be referred to the aforementioned content and will not be repeated here. When the RF transmitting channel operates in different frequency bands, one or more operating parameters of the RF transmitting channel need to be configured. The relevant configured parameters can be referred to the aforementioned content and will not be repeated here.

[0191] S602, the processor determines whether a first preset condition is met, the first preset condition comprising: is a signal in a fourth frequency band received within a preset first time period?

[0192] If received, execute S603 and S607;

[0193] If not received, S601 may be executed.

[0194] For example, the signal in the fourth frequency band may be an ETC wake up signal. If the signal in the fourth frequency band is received, it can be inferred that the wireless communication device has entered the ETC charging area, and may need to send uplink data corresponding to the ETC service in the area, and then in subsequent steps, when there is data corresponding to the ETC service, it can be sent through the RF transmission channel.

[0195] S603: The processor determines whether there is data corresponding to the C-V2X service and / or data corresponding to the ETC service to be sent?

[0196] If only data corresponding to the ETC service exists, execute S604;

[0197] If only data corresponding to the C-V2X service exists, execute S605;

[0198] If there is data corresponding to the C-V2X service and data corresponding to the ETC service, execute S606;

[0199] If there is neither data corresponding to the C-V2X service nor data corresponding to the ETC service, S603 is repeated.

[0200] Combination Figure 5 For example, when there is neither data corresponding to the C-V2X service nor data corresponding to the ETC service, the antenna 35 can be connected to the RF receiving channel 37 through the switch 338. In this case, the RF transmitting channel 33 is in an inoperable state.

[0201] In another possible implementation, in S603, the processor may enable the RF transmission channel to periodically operate in the first frequency band and the second frequency band, thereby sending data of the C-V2X service and the ETC service by time division multiplexing. For example, the RF transmission channel may be periodically operated in the first frequency band with the fifth time duration as a period, and the RF transmission channel may be periodically operated in the second frequency band with the sixth time duration as a period. The fifth time duration and the sixth time duration may be unequal or equal. In another possible implementation, when there is a conflict between the data corresponding to the C-V2X service and the data corresponding to the ETC service, the data corresponding to the ETC service may be sent first, thereby meeting the ETC charging requirements.

[0202] S604: The processor configures the working parameters of the radio frequency transmission channel to enable the radio frequency transmission channel to operate in the second frequency band, and transmits the data of the second frequency band corresponding to the ETC service at a third power through the radio frequency transmission channel.

[0203] The third power may be a maximum power defined by a standard corresponding to the ETC service, or a value close to the maximum power.

[0204] S605: The processor transmits data corresponding to the C-V2X service through a radio frequency transmission channel. Parameters of a power amplifier of the radio frequency transmission channel may be configured so that the radio frequency transmission channel transmits data corresponding to the C-V2X service at a second power.

[0205] The second power may be a value less than the aforementioned first power. That is, after receiving data corresponding to the ETC service through the RF receiving channel, when it is necessary to send data for the C-V2X service, power fallback is performed to reduce interference with data transmission of the ETC service.

[0206] It should be noted that there is no necessary relationship between the third power and the first power, and they can be selected according to the contents specified in their respective standards.

[0207] S606, the processor configures the working parameters of the RF transmission channel to enable the RF transmission channel to operate in the second frequency band, and sends the data corresponding to the ETC service through the RF transmission channel at a third power; and after the data corresponding to the ETC service is sent, the working parameters of the RF transmission channel are configured to enable the RF transmission channel to operate in the first frequency band, and the parameters of the power amplifier of the RF transmission channel are configured so that the RF transmission channel sends the data corresponding to the C-V2X service at the second power.

[0208] It can be seen from S606 that when there is a conflict between the ETC service data and the C-V2X service data, the ETC service data can be sent first, that is, the priority of the ETC service data is increased, so that the user can complete the ETC charging operation more quickly after entering the ETC area, so that they can pass the toll intersection more quickly, and achieve the purpose of giving priority to ETC charging demands while taking into account the C-V2X communication demands.

[0209] It can be seen from S601, S604, S605 and S606 that the radio frequency transmission channel in the embodiment of the present application works in the first frequency band and the second frequency band in a time division multiplexing manner, and transmits the signal of the first frequency band and the signal of the second frequency band in a time division multiplexing manner through the radio frequency transmission channel. In this way, compared with the solution that needs to transmit the signals of the two frequency bands respectively through two radio frequency transmission channels, this solution can reduce the area of ​​the wireless communication device occupied by the radio frequency transmission channel lock.

[0210] It should be noted that after receiving a signal of the fourth frequency band within the preset first time length through S602, the setting for the RF receiving channel can still be set as in S601. In another possible implementation, in S602, if a signal of the fourth frequency band is received within the preset first time length, the following can be executed:

[0211] S607: The processor enables at least one radio frequency receiving channel to operate in a fourth frequency band.

[0212] In a possible implementation, in the aforementioned S601, possible implementation a1 is selected, that is: the switch 348 is closed and the switch 378 is opened; the RF receiving channel 34 operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. The RF receiving channel 37 can operate in the third frequency band. After receiving the signal of the fourth frequency band through the first RF receiving channel within the preset first time length through S602, possible implementation a3 can be selected in S607, that is: the switch 348 is closed and the switch 378 is opened. The RF receiving channel 37 operates in the third frequency band. The RF receiving channel 34 operates in the fourth frequency band. In this way, after it is inferred that the ETC charging area has been entered, the downlink data of the ETC service can be continuously received through the RF receiving channel 34, thereby reducing the probability of missing ETC data.

[0213] In another possible implementation, in the aforementioned S601, possible implementation a5 is selected: switch 378 is closed, and switch 348 is disconnected. The RF receiving channel 34 operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. The RF receiving channel 37 also operates in the third frequency band and the fourth frequency band in a time division multiplexing manner. That is, the phase-locked loop 374 is used to provide signals for the RF receiving channel 37 and the RF receiving channel 34. After receiving the signal of the fourth frequency band through the first RF receiving channel within the preset first time length through S602, possible implementation a3 can be selected in S607, that is: close the switch 348 and disconnect the switch 378. The RF receiving channel 37 operates in the third frequency band. And the RF receiving channel 34 operates in the fourth frequency band. In this way, after it is inferred that the ETC charging area has been entered, the downlink data of the ETC service can be continuously received through the RF receiving channel 34, thereby reducing the probability of missing ETC data.

[0214] In a possible implementation, the first preset condition may also include: ETC charging is not completed.

[0215] In a possible implementation, it can be understood that S603 to S607 are executed when the first preset condition is met; that is, when the ETC downlink signal can be received within the first time period and the ETC charging has not been completed, S603 to S607 can be executed. If the first preset condition cannot be met, S601 is executed. For example, if the ETC downlink signal is not received within the first time period, or the ETC charging has been completed, S601 can be executed.

[0216] In another possible implementation, S608 may be executed after S604, after S605, after S606, and after S607:

[0217] S608, determine whether ETC charging is completed?

[0218] If completed, execute S601;

[0219] If not completed, S608 may be repeated.

[0220] In S608, the judgment condition "whether ETC charging is completed" can be replaced by "whether the second preset condition is met". If it is met, S601 is executed; if it is not met, S608 can be repeated.

[0221] The second preset condition includes at least one of the following:

[0222] Confirm that ETC charging is completed;

[0223] Leaving the ETC toll area;

[0224] No signal in the fourth frequency band is received within a preset second time period.

[0225] For example, when a signal corresponding to an ETC service is received through S602, it can be inferred that the ETC charging area has been entered, and the wireless communication device may have received an ETC wake up message sent by an ETC terminal installed on a toll lane. Afterwards, the wireless communication device may send a message through a radio frequency transmission channel, and the message may include information such as the identification of the wireless communication device and the identification of the entrance to the highway. After receiving the message, the ETC terminal installed on the toll lane may conduct a fee deduction process with a bank, etc. After the fee deduction process is completed, the ETC terminal of the toll lane may send a command to the gate lever control device of the toll lane to lift the gate lever and release the vehicle corresponding to the wireless communication device. In a possible implementation, the ETC terminal installed on the toll lane may send a message to the wireless communication device indicating the completion of the ETC fee collection, so as to notify the wireless communication device that the fee collection is completed.

[0226] In another possible implementation, the ETC terminal installed on the toll lane may not send the message indicating the completion of ETC charging to the wireless communication device. When the gate is lifted, as the vehicle moves away from the ETC charging area, it is possible to infer whether the ETC charging is completed, or to infer whether the ETC charging area has been left, by judging whether the condition "no signal of the fourth frequency band is received within the preset second time period" is met. If "no signal of the fourth frequency band is received within the preset second time period" is met, it can be inferred that the ETC charging area has been left, and then it can be inferred that the ETC charging has been completed. If "no signal of the fourth frequency band is received within the preset second time period" is not met, it can be inferred that the ETC charging area has not been left. If it is uncertain whether the ETC charging is completed, S608 can be continued.

[0227] In another possible implementation, the map and the current location of the wireless communication device may be combined to infer whether the ETC charging is completed. For example, the map may be marked with the location information of the ETC charging area. When the wireless communication device passes through the ETC charging area, or passes through the ETC charging area and is a certain distance away from the ETC charging area, it can be inferred that the vehicle corresponding to the wireless communication device has completed the ETC charging, and therefore passed through the ETC charging area. For another example, when the wireless communication device has not passed through the ETC charging area, it is uncertain whether the ETC charging is completed, and S608 can be continued.

[0228] It should be noted that the above Figure 6 The proposed solution combines the above Figure 5 Examples are given, and the solutions provided in the embodiments of the present application are also applicable to the aforementioned Figures 2 to 4c When the aforementioned Figure 6 The solutions provided are applied to Figure 3 When the RF transmission channel 33 is Figure 6 The scheme type of the radio frequency transmission channel 33 mentioned in Figure 3 Only one RF receiving channel 34 is shown in the figure. Therefore, for a wireless communication device including only one RF receiving channel 34, the RF receiving channel 34 can be first operated in the frequency band corresponding to C-V2X and the frequency band corresponding to the ETC service based on time division multiplexing. When data corresponding to the ETC service is received, it is inferred that the ETC charging area has been entered. In this case, in one possible implementation, the RF receiving channel 34 can continue to be operated in the frequency band corresponding to C-V2X and the frequency band corresponding to the ETC service based on time division multiplexing. In another possible implementation, when data corresponding to the ETC service is received, the RF receiving channel 34 can be operated only in the frequency band corresponding to the ETC service until the ETC charging is completed. After determining or inferring that the ETC charging is completed, the RF receiving channel 34 can be operated in the frequency band corresponding to C-V2X and the frequency band corresponding to the ETC service based on time division multiplexing.

[0229] Based on the above content, the present application embodiment also discloses another possible implementation method, which can be applied to the aforementioned Figures 2 to 5 In any wireless communication device, in this solution, the map and the current position of the wireless communication device can be combined to infer whether the ETC charging is completed, for example, the ETC charging area is marked on the map. When it is determined that the vehicle corresponding to the wireless communication device is about to enter the ETC charging area, for at least one RF receiving channel, the RF receiving channel can be made to operate in the frequency band corresponding to C-V2X and the frequency band corresponding to the ETC service based on time division multiplexing; or, the RF receiving channel 34 can be made to operate only in the frequency band corresponding to the ETC service until the ETC charging is completed or the vehicle leaves the ETC charging area. For at least one RF transmitting channel, the solution corresponding to the RF transmitting channel can be referred to the aforementioned Figure 6 Related content.

[0230] It should be noted that the embodiments of the present application are described using C-V2X services and ETC services as examples, and the embodiments of the present application are also applicable to many other services, that is, data transmission of multiple services can be completed through one transceiver. The solution is similar to the aforementioned content and will not be elaborated on.

[0231] The terms "system" and "network" in the embodiments of the present application can be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0232] Furthermore, unless otherwise specified, ordinal numbers such as "first" and "second" mentioned in the embodiments of the present application are used to distinguish multiple objects, and are not used to limit the order, timing, priority or importance of multiple objects. For example, the first RF receiving channel and the second RF receiving channel are only used to distinguish different RF receiving channels, and do not indicate the difference in priority or importance of the two RF receiving channels.

[0233] It should be understood that the division of the units of the above communication equipment is only a division of logical functions, and in actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated.

[0234] According to the method provided in the embodiment of the present application, the present application also provides a computer program product, which includes: a computer program code, when the computer program code is run on a computer, the computer executes Figure 3 A method according to any one of the embodiments shown.

[0235] According to the method provided in the embodiment of the present application, the present application also provides a computer-readable storage medium, which stores a program code, and when the program code is run on a computer, the computer executes Figure 3 A method according to any one of the embodiments shown.

[0236] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, data center, etc. that contains one or more available media integrated. Available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, digital video discs (DVD)), or semiconductor media (eg, solid state discs (SSD)).

[0237] The network devices in the above-mentioned various apparatus embodiments correspond to the network devices in the method embodiments, and the corresponding modules or units perform the corresponding steps. For example, the communication unit (transceiver) performs the steps of receiving or sending in the method embodiments, and the other steps except sending and receiving can be performed by the processing unit (processor). The functions of the specific units can refer to the corresponding method embodiments. Among them, there can be one or more processors.

[0238] The terms "component", "module", "system", etc. used in this specification are used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to, a process running on a processor, a processor, an object, an executable file, an execution thread, a program and / or a computer. By way of illustration, both applications running on a computing device and a computing device can be components. One or more components may reside in a process and / or an execution thread, and a component may be located on a computer and / or distributed between two or more computers. In addition, these components may be executed from various computer-readable media having various data structures stored thereon. Components may, for example, communicate through local and / or remote processes based on signals having one or more data packets (e.g., data from two components interacting with another component between a local system, a distributed system and / or a network, such as the Internet interacting with other systems through signals).

[0239] Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or in a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0240] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0241] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0242] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0243] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0244] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, and other media that can store program codes.

[0245] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless communication device, characterized in that: include: A processor, and a radio frequency processing circuit coupled to the processor; wherein, The processor is used to set one or more operating parameters of the radio frequency processing circuit; The RF processing circuit includes a RF transmission channel, which is used to operate in a first frequency band and a second frequency band in a time division multiplexing manner. The first frequency band includes an uplink transmission frequency band of a cellular-vehicle-to-everything network C-V2X, and the second frequency band includes an uplink transmission frequency band of an electronic toll collection system ETC.

2. The wireless communication device according to claim 1, wherein: The radio frequency transmission channel includes an uplink mixer, a phase-locked loop and a low-pass filter coupled to the uplink mixer, and a digital-to-analog converter coupled to the low-pass filter; The processor is configured to set one or more of the following operating parameters of the radio frequency transmission channel to enable the radio frequency transmission channel to operate in the first frequency band and the second frequency band in a time division multiplexing manner: The frequency of the phase-locked loop, the bandwidth of the low-pass filter, the sampling rate of the digital-to-analog converter, or the bit width of the digital-to-analog converter.

3. The wireless communication device according to claim 1 or 2, wherein: The radio frequency processing circuit also includes a first radio frequency receiving channel; The first RF receiving channel is used to operate in a third frequency band and a fourth frequency band in a time division multiplexing manner, the third frequency band includes a downlink receiving frequency band of a cellular-vehicle-to-everything (C-V2X) network, and the fourth frequency band includes a downlink receiving frequency band of an electronic toll collection system (ETC).

4. The wireless communication device according to claim 3, wherein: The first RF receiving channel includes: a first mixer, a first phase-locked loop coupled to the first mixer, a first low-pass filter coupled to the first mixer, and a first analog-to-digital converter coupled to the first low-pass filter; The processor is configured to set one or more of the following operating parameters of the first radio frequency receiving channel to enable the first radio frequency receiving channel to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner: The frequency of the first phase-locked loop, the bandwidth of the first low-pass filter, the sampling rate of the first analog-to-digital converter, or the bit width of the first analog-to-digital converter.

5. The wireless communication device according to claim 4, wherein: Also included is a second radio frequency receiving channel; The second radio frequency receiving channel is used to operate exclusively in a third frequency band.

6. The wireless communication device according to claim 4, wherein: Also included is a second radio frequency receiving channel; The second radio frequency receiving channel is used to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner.

7. The wireless communication device according to claim 6, wherein: The second RF receiving channel includes: a second mixer, a second phase-locked loop coupled to the second mixer, a second low-pass filter coupled to the second mixer, and a second analog-to-digital converter coupled to the second low-pass filter; The processor is configured to set one or more of the following operating parameters of the second radio frequency receiving channel to enable the second radio frequency receiving channel to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner: The frequency of the second phase-locked loop, the bandwidth of the second low-pass filter, the sampling rate of the second analog-to-digital converter, or the bit width of the second analog-to-digital converter.

8. The wireless communication device according to claim 7, wherein: The radio frequency processing circuit also includes a first switch and a second switch; The first switch is located between the first phase-locked loop and the first mixer; The second switch is located between the second phase-locked loop and the first mixer. When the second switch is closed, the second phase-locked loop is used to output signals to the first mixer and the second mixer.

9. The wireless communication device according to claim 8, wherein: The processor is further configured to: close or open the first switch, and close or open the second switch according to operating frequency bands of the first RF receiving channel and the second RF receiving channel.

10. The wireless communication device according to claim 9, wherein: The processor is specifically used for: When the first RF receiving channel and the second RF receiving channel operate in different frequency bands, closing the first switch and opening the second switch; When the operating frequency bands of the first RF receiving channel and the second RF receiving channel are the same, the first switch is opened and the second switch is closed.

11. The wireless communication device according to claim 5, wherein: The processor is further configured to: when it is determined that the first preset condition is satisfied: Setting one or more operating parameters of the first radio frequency receiving channel to enable the first radio frequency receiving channel to operate exclusively in the fourth frequency band; Setting one or more operating parameters of the second radio frequency receiving channel to enable the second radio frequency receiving channel to operate exclusively in the third frequency band; The first preset condition includes: receiving data in the fourth frequency band.

12. The wireless communication device according to claim 11, wherein: The first preset condition also includes: ETC charging has not been completed.

13. The wireless communication device according to claim 11, wherein: The processor is also used to: when it is determined that the first preset condition is met, set the parameters of the power amplifier in the RF transmission channel during the time period when the RF transmission channel operates in the first frequency band to reduce the power of the transmitted signal in the first frequency band.

14. The wireless communication device according to claim 5, wherein: The radio frequency processing circuit further includes: a third switch and a first antenna; The first antenna is selectively connected to the RF transmission channel and the second RF reception channel through the third switch.

15. The wireless communication device according to claim 3, wherein: At least one of the first frequency band, the second frequency band, the third frequency band, or the fourth frequency band satisfies the following conditions: The first frequency band includes 5855-5925MHz; The second frequency band includes 5787.5-5802.5 MHz; The third frequency band includes 5855-5925 MHz; or, The fourth frequency band includes 5825-5845 MHz.

16. A signal transmission method, characterized in that: Applicable to a wireless communication device including a processor and a radio frequency processing circuit, wherein the processor is coupled to the radio frequency processing circuit; the radio frequency processing circuit includes a radio frequency transmission channel; Setting one or more operating parameters of the radio frequency processing circuit by the processor so that the radio frequency transmission channel can operate in a first frequency band and a second frequency band in a time division multiplexing manner, and transmitting a signal in the first frequency band and a signal in the second frequency band in a time division multiplexing manner through the radio frequency transmission channel; The first frequency band includes the uplink transmission frequency band of the cellular-vehicle-to-everything (C-V2X) network, and the second frequency band includes the uplink transmission frequency band of the electronic toll collection system (ETC).

17. The method of claim 16, wherein: The radio frequency transmission channel includes an uplink mixer, a phase-locked loop and a low-pass filter coupled to the uplink mixer, and a digital-to-analog converter coupled to the low-pass filter; The one or more operating parameters of the RF processing circuit include one or more of the following: The frequency of the phase-locked loop, the bandwidth of the low-pass filter, the sampling rate of the digital-to-analog converter, or the bit width of the digital-to-analog converter.

18. The method according to claim 16 or 17, characterized in that: The radio frequency processing circuit also includes a first radio frequency receiving channel; One or more operating parameters of the first RF receiving channel are set to enable the first RF receiving channel to operate in a third frequency band and a fourth frequency band in a time division multiplexing manner, wherein the third frequency band includes a downlink receiving frequency band of a cellular-vehicle-to-everything network C-V2X, and the fourth frequency band includes a downlink receiving frequency band of an electronic toll collection system ETC.

19. The method of claim 18, wherein: The first RF receiving channel includes: a first mixer, a first phase-locked loop coupled to the first mixer, a first low-pass filter coupled to the first mixer, and a first analog-to-digital converter coupled to the first low-pass filter; The one or more operating parameters of the first RF receiving channel include one or more of the following: The frequency of the first phase-locked loop, the bandwidth of the first low-pass filter, the sampling rate of the first analog-to-digital converter, or the bit width of the first analog-to-digital converter.

20. The method of claim 19, wherein: Also included is a second radio frequency receiving channel; One or more operating parameters of the second RF receiving channel are set to enable the second RF receiving channel to operate exclusively in a third frequency band.

21. The method of claim 19, wherein: Also included is a second radio frequency receiving channel; One or more operating parameters of the second RF receiving channel are set to enable the second RF receiving channel to operate in the third frequency band and the fourth frequency band in a time division multiplexing manner.

22. The method of claim 21, wherein: The second RF receiving channel includes: a second mixer, a second phase-locked loop coupled to the second mixer, a second low-pass filter coupled to the second mixer, and a second analog-to-digital converter coupled to the second low-pass filter; The one or more operating parameters of the second RF receiving channel include one or more of the following: The frequency of the second phase-locked loop, the bandwidth of the second low-pass filter, the sampling rate of the second analog-to-digital converter, or the bit width of the second analog-to-digital converter.

23. The method of claim 22, wherein: The radio frequency processing circuit further includes a first switch and a second switch; the first switch is located between the first phase-locked loop and the first mixer; the second switch is located between the second phase-locked loop and the first mixer; The method further comprises: The first switch is closed or opened, and the second switch is closed or opened according to the operating frequency bands of the first RF receiving channel and the second RF receiving channel.

24. The method of claim 23, wherein: The closing or opening of the first switch and the closing or opening of the second switch according to the operating frequency bands of the first RF receiving channel and the second RF receiving channel include: When the first RF receiving channel and the second RF receiving channel operate in different frequency bands, closing the first switch and opening the second switch; When the operating frequency bands of the first RF receiving channel and the second RF receiving channel are the same, the first switch is opened and the second switch is closed.

25. The method of claim 20, wherein: The method further comprises: When it is determined that the first precondition is met: Setting one or more operating parameters of the first radio frequency receiving channel to enable the first radio frequency receiving channel to operate exclusively in the fourth frequency band; Setting one or more operating parameters of the second radio frequency receiving channel to enable the second radio frequency receiving channel to operate exclusively in the third frequency band; The first preset condition includes: receiving data in the fourth frequency band.

26. The method of claim 25, wherein: The first preset condition also includes: ETC charging has not been completed.

27. The method of claim 25, wherein: The method further comprises: When it is determined that the first preset condition is met, during a time period when the RF transmission channel operates in the first frequency band, parameters of a power amplifier in the RF transmission channel are set to reduce power of the transmitted signal in the first frequency band.

28. The method of claim 18, wherein: At least one of the first frequency band, the second frequency band, the third frequency band, or the fourth frequency band satisfies the following conditions: The first frequency band includes 5855-5925MHz; The second frequency band includes 5787.5-5802.5 MHz; The third frequency band includes 5855-5925 MHz; or, The fourth frequency band includes 5825-5845 MHz.

29. A communication device, characterized in that: include: Processor and memory; Wherein, the memory is used to store program instructions; The processor is configured to execute program instructions stored in the memory to implement the method according to any one of claims 16 to 28.

30. A communication device, characterized in that: include: processor and interface circuits; Wherein, the interface circuit is used to access a memory, wherein program instructions are stored in the memory; The processor is used to access the memory through the interface circuit and execute program instructions stored in the memory to implement the method according to any one of claims 16 to 28.

31. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores program code, and when the program code is executed by a computer, the method described in any one of claims 16 to 28 is implemented.

32. A chip system, characterized in that: It comprises a communication interface and a processor, wherein the communication interface is used to input and / or output information; when the processor is running, the method described in any one of claims 16 to 28 is executed.

33. A computer program product, characterized in that When the program code contained in the computer program product is executed by a computer, the method according to any one of claims 16 to 28 is implemented.

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