In-vehicle networking communication method, onboard wireless communication apparatus and system, and vehicle

Abstract

The present disclosure relates to an in-vehicle networking communication method. The method is applicable to a first device, and comprises: performing narrowband wireless communication with a second device on the basis of narrowband radio technology, so as to determine a communication time period for performing broadband wireless communication with the second device; on the basis of the UWB radio technology, performing broadband wireless communication with the second device within the communication time period by using address information of the second device, so as to determine whether the second device is within an allowed distance range of the first device; if it is determined that the second device is not within the allowed distance range of the first device, discarding data from or to the second device; and if it is determined that the second device has been within the allowed distance range of the first device, allowing the data from or to the second device. The present invention provides stable and secure wireless communication in a vehicle by means of combining narrowband wireless communication with broadband wireless communication, and supports in-vehicle wireless communication networking.

Description

In-vehicle networking communication method, vehicle-mounted wireless communication device, system, and vehicle

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on October 27, 2023, with application number 202311405770.X and application name “In-vehicle networking communication method, vehicle-mounted wireless communication device, system and vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of communication technology, and in particular to an in-vehicle networking communication method, an in-vehicle wireless communication device, a system, and a vehicle. Background Art

[0003] With the advancement of vehicle technology and information technology, vehicles are gradually entering the era of digital connected vehicles. For example, various sensors and controllers within a vehicle are connected via wired networks, using physical media such as copper-aluminum cables and optical fibers. This wired network can be, for example, an onboard communication bus network, which uses communication protocols such as CAN, LIN, FlexRay, MOST, and Ethernet to connect and network various devices within the vehicle.

[0004] However, traditional in-vehicle networking communication technology has many shortcomings: due to the development of intelligence and automation, the number of sensors and actuators in the vehicle has increased significantly. If wired technology is used for connection, the length and weight of the wiring harness (as well as the weight of the entire vehicle), manufacturing cost and installation cost will have a very large impact; the significant increase in the number of connectors in the vehicle due to wiring harness connection will further aggravate the impact of electromagnetic interference in the vehicle; the number of sensors and actuators in the vehicle is not easy to expand.

[0005] Replacing some wired connections with wireless connections to complete data transmission and control functions within the vehicle has become a key development focus. However, when various existing wireless communication technologies (such as Bluetooth, Zigbee, WiFi, and other short-range wireless communication technologies) are applied to vehicles, their stability and security remain to be solved. As a result, there is no officially commercialized in-vehicle wireless networking communication solution.

[0006] Summary of the Invention

[0007] The purpose of the present disclosure is to overcome the above-mentioned defects in the prior art, and to provide an in-vehicle networking communication method, an in-vehicle wireless communication device, a system and a vehicle to provide stable and secure wireless communication in the vehicle and support in-vehicle wireless communication networking.

[0008] According to a first aspect of the present disclosure, a method for in-vehicle networking communication is proposed, which is applicable to a first device, and the method includes: performing narrowband wireless communication with a second device based on narrowband radio technology to determine a communication time period for performing broadband wireless communication with the second device; performing broadband wireless communication with the second device during the communication time period based on UWB radio technology using the address information of the second device to determine whether the second device is within an allowed distance range of the first device; if it is determined that the second device is not within the allowed distance range of the first device, discarding data from or to the second device, or if it is determined that the second device is within the allowed distance range of the first device, allowing data from or to the second device.

[0009] According to a second aspect of the present disclosure, a method for in-vehicle networking communication is proposed, which is applicable to a second device. The method includes: sending a status indication message that the broadband radio function of the second device is in a working state based on narrowband radio technology, and the broadband radio function corresponds to UWB radio technology; performing narrowband communication with a first device based on the narrowband radio technology to determine a communication time period for performing broadband wireless communication with the first device; and performing broadband wireless communication with the first device during the communication time period using the address information of the second device based on the UWB radio technology.

[0010] According to a third aspect of the present disclosure, a vehicle-mounted wireless communication device is proposed, which is applied to a first device, wherein the first device includes: a narrowband communication module, configured to send an indication message of a communication period for broadband wireless communication with the second device based on narrowband radio technology or receive an indication message of a communication period for broadband wireless communication with the second device from the second device based on narrowband radio technology; a broadband communication module, configured to perform broadband wireless communication with the second device during the communication period based on UWB radio technology; and a processing module, configured to: determine whether the second device is within an allowed distance range of the first device based on the broadband wireless communication; if it is determined that the second device is not within the allowed distance range of the first device, discard data from or to the second device, or if it is determined that the second device is within the allowed distance range of the first device, allow data from or to the second device.

[0011] According to a fourth aspect of the present disclosure, a vehicle-mounted wireless communication device is proposed, which is applied to a second device, wherein the second device includes: a narrowband communication module, configured to: send a status indication message that a broadband radio function of the second device is in a working state based on narrowband radio technology, and the broadband radio function corresponds to UWB radio technology; send an indication message of a communication period for performing broadband wireless communication with the first device based on the narrowband radio technology or receive an indication message of a communication period for performing broadband wireless communication with the second device from the first device based on narrowband radio technology; and a broadband communication module, configured to perform broadband wireless communication with the first device during the communication period using the address information of the second device based on the UWB radio technology.

[0012] According to the fifth aspect of the present disclosure, a vehicle-mounted wireless communication device is proposed, which includes: a processor; and a memory for storing computer-executable instructions, which, when the computer-executable instructions are executed, enables the processor to execute the in-vehicle networking communication method described in the first or second aspect above.

[0013] According to the sixth aspect of the present disclosure, an in-vehicle wireless communication system is proposed, which includes: a gateway node device, configured to execute the in-vehicle networking communication method according to the first aspect mentioned above; and one or more end node devices wirelessly connected to the gateway node device, each end node device being configured to execute the in-vehicle networking communication method according to the second aspect mentioned above, wherein the corresponding communication time periods for each end node device to perform broadband wireless communication with the gateway node device based on UWB radio technology using the address information of each end node device do not overlap with each other.

[0014] According to a seventh aspect of the present disclosure, a vehicle is proposed, comprising the vehicle-mounted wireless communication device according to the aforementioned third aspect, fourth aspect, or fifth aspect, or the vehicle-mounted wireless communication system according to the aforementioned sixth aspect.

[0015] According to the technical solutions provided by the various embodiments of the present disclosure, the time of broadband wireless communication can be determined through wireless narrowband communication, and stable communication transmission can be provided by providing larger bandwidth data transmission and lower data transmission interference through UWB broadband wireless communication. It can resist information leakage such as relay attacks to provide safe and reliable communication transmission, and can further improve security by locating the device. It can also realize in-vehicle communication networking by using the address information of the device in broadband wireless communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features and advantages of the present invention will be better understood from the following detailed description of preferred embodiments with reference to the accompanying drawings, in which the same reference numerals represent the same or similar components.

[0017] FIG1 illustrates an exemplary scenario in which embodiments of the present disclosure may be applied.

[0018] FIG2 shows a flowchart of an exemplary in-vehicle networking communication method according to an embodiment of the present disclosure.

[0019] FIG3 shows a flowchart of an exemplary in-vehicle networking communication method according to an embodiment of the present disclosure.

[0020] FIG4 shows a flowchart of an exemplary in-vehicle networking communication method for interacting between multiple devices according to an embodiment of the present disclosure.

[0021] FIG5 shows an exemplary in-vehicle wireless communication device according to an embodiment of the present disclosure.

[0022] FIG6 shows an exemplary in-vehicle wireless communication device according to an embodiment of the present disclosure.

[0023] FIG7 shows an exemplary in-vehicle wireless communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] The following detailed description is merely illustrative in nature and is not intended to limit the application and use of the present invention. Furthermore, the present invention is not intended to be limited by any expressed or implied theory presented in the foregoing technical field, background technology, summary of the invention, or the following detailed description.

[0025] Traditional in-vehicle networking and communication technologies rely on wired connections between various devices via wiring harnesses. However, with the advancement of vehicle intelligence and digitalization, wired networking and communication are no longer able to meet the growing demand for in-vehicle sensors and actuators (for example, autonomous driving requires the installation of multiple sensors distributed throughout the vehicle). Furthermore, the excessive number of wired sensors and actuators further exacerbates electromagnetic interference within the vehicle. Therefore, as the complexity and functionality of these components in the vehicle grow, the desire to transmit large amounts of data in a convenient manner is becoming increasingly important. Replacing some wired connections with wireless connections is becoming a growing trend in in-vehicle communication.

[0026] For example, wireless communication based on narrowband 2.4GHz can be used to achieve in-vehicle networking communication. However, 2.4GHz is an ISM frequency band commonly used by various radio technologies (such as Bluetooth, Zigbee, WiFi, etc.). Therefore, when there are multiple Bluetooth, Zigbee, and WiFi devices in the car, there is a challenge in frequency band interference, which affects the stability of their communication. To solve this problem, complex communication protocols such as Hopping mechanism and verification mechanism need to be adopted. In addition, 2.4GHz is a fixed-frequency communication, and in terms of information security, it is necessary to consider issues such as relay attacks and information leakage. Therefore, it will require the implementation of more complex encryption measures, etc., resulting in complex protocols and reduced communication efficiency.

[0027] In addition, although broadband radio technologies such as UWB (Ultra-wideband) can achieve high-bandwidth and low-interference data transmission, networking cannot be achieved, and broadband data transmission alone cannot solve mechanisms such as sleep and wake-up.

[0028] As described below, some exemplary embodiments of the present disclosure provide in-vehicle networking communication methods, in-vehicle wireless communication devices, systems, and vehicles. In at least some embodiments, the aforementioned problems in the prior art are addressed by utilizing narrowband wireless communication to determine the timing of a device's broadband wireless communication, simultaneously employing UWB broadband for formal data exchange, and determining the device's location through positioning, as described in more detail below with reference to Figures 1-7.

[0029] Referring to FIG1 , an exemplary scenario 100 is shown in which embodiments of the present disclosure may be applied. Scenario 100 includes a vehicle 110 having a plurality of on-board wireless communication devices 111, 112A, 112B, and 112C. Device 111 and devices 112A-112C (collectively referred to as devices 112) constitute an on-board wireless communication system 113 and are wirelessly connected via a star wireless network (as indicated by the lightning symbol in FIG1 ), wherein device 111 serves as a gateway node device and device 112 serves as an end node device, each end node device 112 can communicate with gateway node device 111, and communications between end node devices 112 are relayed via gateway node device 111. For example, each of the devices 111 and 112 may support multiple radio technologies, such as at least one narrowband radio technology (corresponding to a narrowband wireless communication function) and a UWB radio technology (corresponding to a wideband radio function), so that narrowband communication based on the narrowband radio technology and wideband wireless communication based on the UWB radio technology can be performed between the devices 111 and 112. For example, the devices 111 and 112 may have a narrowband communication module that supports the narrowband wireless communication function and a UWB wireless communication module that supports the wideband wireless communication function, or a wireless communication module that integrates the narrowband wireless communication function and the UWB wireless communication function.

[0030] As shown in Figure 1, similarly, device 111 can also perform narrowband communication and broadband wireless communication with devices 114A and 114B located outside the vehicle 110, wherein devices 114A and 114B support at least one narrowband radio technology and UWB radio technology. Optionally, device 111 can also communicate with on-board wired communication devices 115A and 115B (collectively referred to as devices 115) of vehicle 110 through a wired connection. For example, device 111 can be connected to device 115 via an on-board communication bus network 116 (such as CAN, LIN, FlexRay, MOST, Ethernet, etc.). Therefore, the gateway node device 111 can also realize communication between the end node device 112 in the on-board wireless communication system 113 and the on-board wired communication device 115 in the on-board communication bus network 116. It should be understood that the number of devices 112, 114, and 115 in Figure 1 is for illustration only and is not intended to limit the in-vehicle wireless communication system or in-vehicle communication bus network provided in the embodiments of the present disclosure. The in-vehicle wireless communication system or in-vehicle communication bus network may include a greater or lesser number of devices.

[0031] Referring to FIG. 2 , a flowchart illustrating an exemplary in-vehicle networking communication method 200 according to an embodiment of the present disclosure is shown. Method 200 may be applicable, for example, to vehicle 110 in FIG. 1 and may be performed by, for example, any of the in-vehicle wireless communication device 111 in FIG. 1 , the in-vehicle wireless communication device 401 in FIG. 4 , and the in-vehicle wireless communication device 500 in FIG. As shown in FIG. 2 , method 200 includes steps 201 to 203.

[0032] In step 201, a first device conducts narrowband wireless communication with a second device using narrowband radio technology to determine a communication period for broadband wireless communication with the second device. In this step, narrowband wireless communication exchanges can be used to determine the communication period for broadband wireless communication between the two devices. This allows data transmission to utilize broadband transmission with higher bandwidth and lower interference, rather than the narrowband 2.4 GHz frequency band, which is subject to significant interference, to improve communication efficiency. For example, broadband wireless communication using UWB radio technology operates in a frequency band above 5 GHz, which can reduce congestion in in-vehicle communication channels.

[0033] For example, device 111 (i.e., the first device) in FIG. 1 may transmit a data frame or message based on narrowband radio technology. The data frame or message includes address information (e.g., the device address of device 112A, such as a MAC address) for addressing, for example, device 112A (i.e., the second device). The data frame or message may also include a transmit time period for transmitting data to device 112A based on UWB radio technology and a receive time period for receiving data from device 112A based on UWB radio technology. For example, the data frame or message may include a specific field or have a specific length to indicate that it is a communication time period announcement frame or message. Accordingly, when device 112A receives the communication time period announcement frame or message based on narrowband radio technology, device 112A may detect that the data frame or message is intended for device 112A based on the address information included in the data frame or message, and parse the indicated communication time period from the data frame or message to conduct broadband communication during the communication time period. When another device 112B receives the communication period declaration frame or message based on narrowband radio technology, device 112B can detect that the data frame or message is not for device 112B based on the address information contained in the data frame or message, and device 112B can avoid performing broadband wireless transmission to device 111 during the communication period of device 112A (for example, by parsing the indicated communication period from the data frame or message).

[0034] Alternatively, device 111 of Figure 1 can receive a data frame or message from device 112A sent by device 112A based on narrowband radio technology, the data frame or message including address information of the device for initiating addressing (for example, the device address of device 112A, such as a MAC address, etc.), and the data frame or message can also include a sending period for sending data to device 112A based on UWB radio technology and a receiving period for receiving data from device 112A based on UWB radio technology.

[0035] In some examples, device 111 and device 112A may each send a data frame or message based on narrowband radio technology to notify a transmission period and a reception period, and confirm the corresponding transmission period and reception period after consensus. For example, device 111 and device 112A may determine a broadband communication period based on data transmission requirements to improve data transmission efficiency.

[0036] In step 202, the first device uses the address information of the second device to conduct broadband wireless communication with the second device during a communication period based on UWB radio technology to determine whether the second device is within the permitted distance range of the first device. For example, device 111 may receive a data frame or message sent by device 112A using UWB radio technology during the determined transmission period of device 112A (i.e., the reception period of device 111). The data frame or message may include the address information of device 112A used to initiate the addressing, and / or device 111 may transmit a data frame or message using UWB radio technology during the determined reception period of device 112A (i.e., the transmission period of device 111). The data frame or message may include the address information of device 112A used to initiate the addressing. Furthermore, through the transmission of the data frame or message between device 111 and device 112A, device 112A may be located relative to device 111 to determine whether device 112A is within the permitted range of device 111. In this step, by adding device address information to the broadband data exchange, broadband wireless communications between different devices 112 and device 111 can be scheduled so that different devices 112 communicate with device 111 during non-overlapping communication time periods, thereby achieving wireless networking within the vehicle. Furthermore, compared to the low positioning accuracy of narrowband radio technologies such as Bluetooth, Zigbee, and WiFi, UWB radio technology offers the dual advantages of real-time and precise positioning. Furthermore, its positioning latency is significantly lower than that of these narrowband radio technologies, and it can achieve centimeter-level positioning accuracy, enabling rapid and accurate determination of the distance between the second device and the first device.

[0037] In step 203, if it is determined that the second device is not within the permitted distance range of the first device, data from or to the second device is discarded. Alternatively, if it is determined that the second device is within the permitted distance range of the first device, data from or to the second device is allowed. For example, device 111 may compare the distance between itself and device 112A, as determined using UWB technology, with a threshold distance. If the distance exceeds the threshold distance, it may be determined that device 112A is not within the permitted distance range of device 111. Conversely, if the distance is less than the threshold distance, it may be determined that device 112A is within the permitted distance range of device 111. For example, when device 112A is not within the permitted distance range of device 111, data to or from device 112A (from device 111 or another device) may be discarded. For example, when device 112A is within the permitted distance range of device 111, the data may be deemed legitimate and allowed to or from device 112A. During this step, by simultaneously locating the device during UWB communication, it is possible to ensure that the wireless communication device is effective within the vehicle's interior, for example, thereby preventing long-range attacks. For example, device 111 may receive data transmissions from wireless communication device 114 outside the vehicle. Using distance positioning prevents the external wireless device from affecting the security of the in-vehicle wireless communication transmissions. Furthermore, UWB broadband communication itself is not easily relayed, significantly reducing information security protection measures.

[0038] In some examples, the first device and the second device may interact via narrowband wireless communication or broadband wireless communication to determine other communication parameters for broadband wireless communication, such as communication rate, modulation mode, etc.

[0039] In some examples, before determining a communication period for conducting broadband wireless communication with the second device, method 200 further includes the following steps: conducting narrowband wireless communication with the second device based on a narrowband radio technology to determine a state of a broadband radio function of the second device, where the broadband radio function corresponds to a UWB radio technology. For example, the broadband radio function (or module) of the second device can have multiple states, such as a sleep state and an active state. For example, the broadband radio function (or module) of device 112A can enter a sleep state after the broadband wireless communication ends or after the communication period ends to save energy.

[0040] In some examples, conducting narrowband wireless communication with a second device based on a narrowband radio technology to determine the status of a wideband radio function of the second device may include: receiving a status indication message from the second device based on the narrowband radio technology indicating that the wideband radio function of the second device is in an operational state, the status indication message including address information of the second device. For example, device 112A may passively wake up in response to a wake-up message sent by device 111 and send a status indication message via narrowband communication to indicate that device 112A is awake. Alternatively, device 112A may actively wake up in response to operation of its associated vehicle component and send a status indication message via narrowband communication to indicate that device 112A is awake.

[0041] In some examples, before receiving a status indication message from the second device indicating that the wideband radio function of the second device is in an operational state, method 200 may further include sending a wake-up message based on narrowband radio technology, where the wake-up message includes address information of the second device and is used to trigger the second device to wake up the wideband radio function. For example, a wake-up message command may be sent via narrowband communication of device 111 to actively wake up the wideband radio function (or module) of device 112A, such as using Wake-on-Radio technology.

[0042] In some examples, conducting broadband wireless communication with a second device during a communication period using the second device's address information based on UWB radio technology may include receiving, from the second device, first data for transmission to a target receiving device. Method 200 may also include: determining address information of the target receiving device, the target receiving device being different from the first device; and forwarding the first data based on the address information of the target receiving device. Similar to the above, the address information of the target receiving device may be embedded in a data frame to facilitate data forwarding.

[0043] In some examples, determining the address information of the target receiving device may include: parsing the address information of the target receiving device from the first data.

[0044] In some examples, wirelessly connecting a first device to a target receiving device and forwarding first data based on address information of the target receiving device may include: performing narrowband wireless communication with the target receiving device based on narrowband radio technology to determine a first target communication period for performing broadband wireless communication with the target receiving device; and forwarding the first data to the target receiving device using the address information of the target receiving device based on UWB radio technology during the first target communication period. For example, the target receiving device may be device 112B in FIG. 1 . Similar to the steps described above, device 111 needs to determine a target communication period for broadband wireless communication with device 112B using narrowband radio communication technology, and device 111 forwards data from device 112A to device 112B using UWB radio technology based on the determined target communication period.

[0045] In some examples, method 200 may further include: receiving second data for transmission to a second device from a target sending device communicatively connected to the first device; and forwarding the second data based on address information of the second device. For example, the target sending device may be device 112C or device 115A in FIG. 1 .

[0046] In some examples, the first device being communicatively connected to the target sending device via a wired communication protocol and forwarding the second data based on the address information of the second device may include: converting the second data in a wired communication protocol format according to a broadband wireless communication protocol; and transmitting the converted second data to the second device during a communication period using the address information of the second device via UWB radio technology. For example, device 111 may have a wired communication module and be wiredly connected to device 115A. Device 111 converts data from device 115A in a wired communication protocol format based on the wireless communication protocol, and forwards the converted data from device 115A to device 112A via UWB radio technology during a communication period with device 112A determined based on narrowband radio technology.

[0047] In some examples, the first device is wirelessly connected to the target transmitting device, and method 200 may further include performing narrowband wireless communication with the target transmitting device based on narrowband radio technology to determine a second target communication period for performing broadband wireless communication with the target transmitting device, receiving the second data from the target transmitting device during the second target communication period using address information of the target transmitting device based on UWB radio technology, and forwarding the second data to the second device during the communication period using the address information of the second device based on UWB radio technology. For example, similar to the steps described above, device 111 needs to determine a target communication period for broadband wireless communication with device 112C using narrowband radio technology, and device 111 receives data from device 112C using UWB radio technology based on the determined target communication period, and forwards the data from device 112C to device 112A using UWB radio technology during the communication period determined with device 112A based on the narrowband radio technology.

[0048] In some examples, method 200 may further include: sending a sleep message to the second device based on narrowband radio technology, the sleep message including the address information of the second device and used to trigger the broadband radio function of the second device to enter a sleep state. For example, when the vehicle as a whole changes from a use state to a non-use state (such as after the user turns off the power unit or locks the vehicle), the gateway node device 111 may send a sleep message command to one or more or all of all end node devices via narrowband, so that their broadband radio functions are in a sleep state. Accordingly, when the vehicle as a whole changes from a non-use state to a use state (such as after the user starts the power unit or unlocks the vehicle), the gateway node device 111 may send a wake-up message command to the corresponding end node device among all end node devices via narrowband based on data transmission requirements, so that their broadband radio functions are in a wake-up state.

[0049] In some examples, step 203 of method 200 may include: conducting broadband wireless communication with a second device during a communication period based on UWB radio technology, determining a measured distance between the first device and the second device using ranging data transmitted between the first device and the second device via the broadband wireless communication via a ranging algorithm; and determining whether the measured distance is within an allowed distance range. For example, when exchanging broadband data via UWB technology, the distance between device 111 and device 112A may be determined based on the transmitted ranging data. For example, as described in the IEEE 802.15.4z-2020 standard, a time-of-flight ranging algorithm may be used to determine the measured distance between the two devices using a marker RMARKER carried in the transmitted message. The TOF ranging algorithm may include, for example, SS-TWR, DS-TWR, OWR / TDOA, etc. For example, the measured distance between the two devices may also be determined using various ranging algorithms known in the art or developed in the future using other types of ranging data carried in the message. For example, the measured distance may be compared with a threshold distance to determine whether device 112A is within the allowed distance range of device 111.

[0050] In some examples, narrowband radio technology may include, but is not limited to, Bluetooth radio technology, Zigbee radio technology, WiFi radio technology, NFC radio technology, RFID radio technology, narrowband radio technology defined in UWB standards (including existing or future UWB standards), and various other narrowband radio technologies developed in the future, etc.

[0051] In some examples, the first device is a gateway node device of an in-vehicle wireless communication system.

[0052] In some examples, the second device is an end node device of an in-vehicle wireless communication system and is associated with a vehicle component.

[0053] In some examples, vehicle components may include, but are not limited to, control modules located on vehicle doors, seat control modules, massage control modules, and onboard sensors. For example, a vehicle component may be a control module located on a vehicle door (e.g., a window switch, a door switch, etc.), a sunlight and rain sensor, a seat control module, a massage control module, a sunroof control module, or a tailgate control module. For example, these vehicle components may be battery-powered and located remotely from the gateway node device. Connecting such vehicle components via wired communication may be cumbersome and costly.

[0054] 3 , a flowchart illustrating an exemplary in-vehicle networking communication method 300 according to an embodiment of the present disclosure is shown. Method 300 may be applicable to, for example, vehicle 110 of FIG. 1 , and may be performed by, for example, any of the in-vehicle wireless communication device 112 of FIG. 1 , the in-vehicle wireless communication device 402 of FIG. 4 , and the in-vehicle wireless communication device 600 of FIG. 6 As shown in FIG. 3 , method 300 includes steps 301 to 303.

[0055] In step 301, a status indication message is sent to a second device based on narrowband radio technology, indicating that the wideband radio function of the second device is in an operational state. The wideband radio function corresponds to UWB radio technology. For example, device 112A (i.e., the second device) may passively wake up in response to a wake-up message sent by device 111 (i.e., the first device) and send a status indication message via narrowband communication to indicate that device 112A is awake. Alternatively, device 112A may actively wake up in response to operation of its associated vehicle component and send a status indication message via narrowband communication to indicate that device 112A is awake.

[0056] In step 302 , narrowband communication is performed with the first device based on narrowband radio technology to determine a communication period for performing broadband wireless communication with the first device. For example, this step can be implemented in a manner similar to that described above with respect to step 201 of method 200 .

[0057] In step 303 , broadband wireless communication is performed with the first device during the communication period using the address information of the second device based on UWB radio technology. For example, this step can be implemented in a manner similar to that described above with respect to step 202 of method 200 .

[0058] In some examples, before sending a status indication message that the broadband radio function of the second device is in a working state, method 300 also includes the following steps: receiving a wake-up message sent by the first device based on narrowband radio technology; if the wake-up message includes the address of the second device, triggering the second device to wake up the broadband radio function, and the broadband radio function corresponds to UWB radio technology.

[0059] In some examples, step 303 of method 300 may include: transmitting first data for transmission to a target receiving device, the first data including address information of the second device and the target receiving device.

[0060] In some examples, step 303 may include: receiving second data transmitted by the first device based on UWB radio technology; determining whether the intended recipient of the second data includes the second device; and discarding the second data if it is determined that the intended recipient of the second data does not include the second device.

[0061] In some examples, the second device is an end node device of the in-vehicle wireless communication system, and the first device is a gateway node device of the in-vehicle wireless communication system.

[0062] In some examples, the second device is associated with a vehicle component, and method 300 may also include causing the broadband radio function of the second device to enter an operating state in response to detecting an operation on the vehicle component, and step 301 may include sending a status indication message that the broadband radio function of the second device is in an operating state based on narrowband radio technology when the broadband radio function of the second device is in an operating state.

[0063] In some examples, method 300 may also include: receiving a sleep message sent by a first device based on narrowband radio technology; determining whether the intended recipient of the sleep message includes a second device; and if it is determined that the intended recipient of the sleep message includes the second device, causing the broadband radio function of the second device to enter a sleep state.

[0064] In some examples, narrowband radio technology may include, but is not limited to, Bluetooth radio technology, Zigbee radio technology, WiFi radio technology, NFC radio technology, RFID radio technology, narrowband radio technology defined in UWB standards (including existing or future UWB standards), and various other narrowband radio technologies developed in the future, etc.

[0065] 4 , a flowchart of an exemplary in-vehicle networking communication method 400 for interaction between multiple devices according to an embodiment of the present disclosure is shown. The multiple devices include a first device 401, a second device 402, a third device 403, and a fourth device 404 communicatively connected to the first device 401. The first device 401 may be, for example, the in-vehicle wireless communication device 111 of FIG. 1 , the second device 402 may be, for example, the in-vehicle wireless communication device 112 or device 114 of FIG. 1 , the third device 403 may be, for example, the in-vehicle wireless communication device 112 or device 114 of FIG. 1 , and the fourth device 404 may be, for example, the in-vehicle wired communication device 115 of FIG. Method 400 may include multiple steps S411 to S419 to implement communication between the multiple devices, wherein at least some steps are optional and not required.

[0066] In step S411 , the first device 401 sends a wake-up message based on narrowband radio technology. The wake-up message includes address information of the second device 402 and is used to trigger the second device 402 to wake up a broadband radio function.

[0067] In step S412, first device 401 receives a status indication message from second device 402 based on narrowband radio technology, indicating that the wideband radio function of second device 402 is in an operational state. The status indication message includes the address information of second device 402. For example, second device 402 may passively wake up in response to a wake-up message sent by first device 401 and transmit the status indication message via narrowband communication to indicate device wake-up. For example, second device 402 may actively wake up in response to operation of its associated vehicle component and transmit the status indication message via narrowband communication to indicate device wake-up. In this case, step S411 is not necessary.

[0068] In step S413 , the first device 401 performs narrowband wireless communication with the second device 402 based on narrowband radio technology to determine a communication period for performing broadband wireless communication with the second device 413 .

[0069] In step S414, first device 401 uses UWB radio technology to perform broadband wireless communication with second device 402 during a communication period using the address information of second device 402. For example, first device 401 can receive data from second device 402 or transmit data to second device 402 via UWB radio technology. Furthermore, first device 401 can determine the distance of second device 402 via broadband wireless communication to determine whether data from or to second device 402 is legitimate based on the distance. For example, data sent from second device 402 to first device 401 can be destined for third device 403 or fourth device 404.

[0070] In step S415 , similar to step S411 , the first device 401 sends a wake-up message based on narrowband radio technology. The wake-up message includes address information of the third device 403 and is used to trigger the third device 403 to wake up a broadband radio function.

[0071] In step S416, the first device 401 receives a status indication message from the third device 403 based on the narrowband radio technology, indicating that the broadband radio function of the third device 403 is in an active state. The status indication message includes the address information of the second device 403. For example, the third device 403 may be passively awakened in response to the wake-up message sent by the first device 401 and send the status indication message through narrowband communication to indicate that the device is awakened.

[0072] In step S417 , similar to step S413 , the first device 401 performs narrowband wireless communication with the third device 403 based on narrowband radio technology to determine a target communication period for performing broadband wireless communication with the third device 413 .

[0073] In step S418, first device 401 uses the address information of third device 403 to perform broadband wireless communication with third device 403 during the target communication period based on UWB radio technology. For example, first device 401 can forward data received from second device 402 to third device 403 via UWB radio technology. Similar to step 414, first device 401 can determine the distance of third device 403 via broadband wireless communication to determine whether the data from or to third device 403 is legitimate based on the distance.

[0074] Similarly, when the third device 403, as the target sending device, desires to transmit data to the second device 402, the third device 403 may interact with the first device 401 in a manner similar to steps S411 to S414, and the second device 402 may interact with the first device 401 in a manner similar to steps S415 to S418 to receive data from the third device 403 forwarded by the first device 401. Furthermore, the communication period during which the first device 401 and the second device 402 perform broadband wireless communication does not overlap with the communication period during which the first device 401 and the third device 403 perform broadband wireless communication.

[0075] In step S419 , the first device 401 may convert the data based on the wireless communication protocol format from the second device 402 into the wired communication protocol, and forward the converted data from the second device 402 to the fourth device 404 through the wired communication connection.

[0076] Similarly, when the fourth device 404, as the target sending device, expects to transmit data to the second device 402, the first device 401 can receive data from the fourth device 404 via a wired communication connection, and convert the data based on the wired communication protocol format according to the wireless communication protocol, and the first device 401 can interact with the second device 402 in a manner similar to steps S411 to S414, and forward the converted data to the second device 402.

[0077] 5 , an exemplary in-vehicle wireless communication device 500 according to an embodiment of the present disclosure is shown. Each module of device 500 can be implemented using software, hardware (e.g., an integrated circuit, FPGA, etc.), or a combination of software and hardware. Device 500 can be, for example, device 111 of FIG. 1 or device 401 (i.e., the first device) of FIG. 4 . As shown in FIG. 5 , device 500 includes a narrowband information communication module 501, a broadband communication module 502, and a processing module 503.

[0078] The narrowband communication module 501 is configured to send an indication message of a communication period for performing broadband wireless communication with a second device based on narrowband radio technology or receive an indication message of a communication period for performing broadband wireless communication with a second device based on narrowband radio technology.

[0079] The broadband communication module 502 is configured to perform broadband wireless communication with the second device over a communication period using the address information of the second device based on UWB radio technology.

[0080] The processing module 503 is configured to: determine whether the second device is within the allowed distance range of the device 500 based on broadband wireless communication; if it is determined that the second device is not within the allowed distance range of the device 500, discard the data from or to the second device, or if it is determined that the second device is within the allowed distance range of the device 500, allow the data from or to the second device.

[0081] Optionally, the apparatus 500 may further include a wired communication module 504 configured to communicate with an on-board wired communication device connected to the apparatus 500 by wire, so as to serve as a relay to implement mutual communication between, for example, a second device and the on-board wired communication device.

[0082] The narrowband communication module 501 , broadband communication module 502 , processing module 503 , and wired communication module 504 may also be configured to implement one or more corresponding steps in the method 200 , which will not be described in detail.

[0083] 6 , an exemplary in-vehicle wireless communication device 600 according to an embodiment of the present disclosure is shown. Each module of device 600 can be implemented using software, hardware (e.g., an integrated circuit, FPGA, etc.), or a combination of software and hardware. Device 600 can be, for example, device 112 of FIG. 1 or device 402 (i.e., the second device) of FIG. 4 . As shown in FIG. 6 , device 600 includes a narrowband information communication module 601 and a broadband communication module 602.

[0084] The narrowband communication module 601 is configured to send a status indication message indicating that the broadband radio function of the device 600 is in a working state based on narrowband radio technology, and the broadband radio function corresponds to UWB radio technology; send an indication message of a communication period for performing broadband wireless communication with a first device based on narrowband radio technology or receive an indication message of a communication period for performing broadband wireless communication with a second device based on narrowband radio technology from the first device.

[0085] The broadband communication module 602 is configured to perform broadband wireless communication with the first device over a communication period using address information of the apparatus 600 based on UWB radio technology.

[0086] Optionally, the apparatus 600 may further include a processing module 603 for processing data.

[0087] The narrowband communication module 601 , the broadband communication module 602 , and the processing module 603 may also be configured to implement one or more corresponding steps in the method 300 , which will not be described in detail.

[0088] 7 , a block diagram of an exemplary in-vehicle wireless communication device 700 according to an embodiment of the present disclosure is shown. Device 700 may be, for example, the in-vehicle wireless communication devices 111 and 112 of FIG. 1 , or the in-vehicle wireless communication devices 401 and 402 of FIG. Device 700 includes at least one processor 701 and a memory 702 coupled to the at least one processor 701. Memory 702 is configured to store computer-readable instructions that, when executed by the at least one processor 701, cause the processor 701 to perform the methods described in the foregoing embodiments (e.g., any one or more steps of methods 200, 300, and 400 described above).

[0089] Referring back to Figure 1 , the vehicle 100 may include one or more of the on-board wireless communication devices 111, 112, the on-board wireless communication system 113 of Figure 1 , the on-board wireless communication devices 401, 402 of Figure 4 , the on-board wireless communication device 500 of Figure 5 , and the on-board wireless communication device 600 of Figure 6 to implement any one or more steps in the aforementioned in-vehicle networking communication method.

[0090] The present disclosure also provides an in-vehicle wireless communication system (for example, the in-vehicle wireless communication system 113 of Figure 1 ), which includes: a gateway node device (for example, the in-vehicle wireless communication device 111 of Figure 1 , the device 401 of Figure 4 , the in-vehicle wireless communication device 500 of Figure 5 , and the in-vehicle wireless communication device of Figure 7 ), which is configured to execute any one or more steps of the aforementioned method 200 , etc.; and one or more end node devices wirelessly connected to the gateway node device (for example, the in-vehicle wireless communication device 112 of Figure 1 , the devices 402, 403 of Figure 4 , the in-vehicle wireless communication device 600 of Figure 6 , and the in-vehicle wireless communication device of Figure 7 ), which are configured to execute any one or more steps of the aforementioned method 300 , etc.

[0091] As discussed above, although the present application discusses the in-vehicle networking communication method in vehicle applications, the method, device, and system disclosed herein are also applicable to other arrangements where networking communication needs to be implemented in a vehicle.

[0092] The foregoing discussion is merely a disclosure and description of exemplary embodiments of the present invention. Through these discussions, the accompanying drawings, and the claims, those skilled in the art will readily appreciate that various changes, modifications, and variations may be made to the present invention without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A method for in-vehicle networking communication, applicable to a first device, the method comprising: performing narrowband wireless communication with a second device based on narrowband radio technology to determine a communication period for performing broadband wireless communication with the second device; performing broadband wireless communication with the second device during the communication period using the address information of the second device based on UWB radio technology to determine whether the second device is within the allowed distance range of the first device; If it is determined that the second device is not within the allowed distance range of the first device, discarding data from or to the second device, or If it is determined that the second device is within the allowed distance range of the first device, data from or to the second device is allowed.

2. The method according to claim 1, wherein: Before determining a communication period for performing broadband wireless communication with the second device, the method further includes: The method further comprises performing narrowband wireless communications with the second device based on the narrowband radio technology to determine a status of a wideband radio function of the second device, the wideband radio function corresponding to the UWB radio technology.

3. The method according to claim 2, wherein: Performing narrowband wireless communication with the second device based on the narrowband radio technology to determine a state of a broadband radio function of the second device includes: A status indication message indicating that a broadband radio function of the second device is in a working state is received from the second device based on the narrowband radio technology, and the status indication message includes address information of the second device.

4. The method according to claim 3, wherein: Before receiving a status indication message from the second device that a broadband radio function of the second device is in an operating state, the method further includes: A wake-up message is sent based on narrowband radio technology, where the wake-up message includes address information of the second device and is used to trigger the second device to wake up a broadband radio function.

5. The method according to claim 1, wherein: Performing broadband wireless communication with the second device over the communication period using the address information of the second device based on UWB radio technology includes receiving first data from the second device for transmission to a target receiving device; And the method also includes: determining address information of the target receiving device, the target receiving device being different from the first device; The first data is forwarded according to the address information of the target receiving device.

6. The method according to claim 5, wherein: Determining the address information of the target receiving device includes: parsing the address information of the target receiving device from the first data.

7. The method according to claim 5, wherein: The first device is communicatively connected to the target receiving device by wire, and Forwarding the first data according to the address information of the target receiving device includes: Converting the first data in a broadband wireless communication protocol format according to a wired communication protocol; The converted first data is transmitted to the target receiving device through wired communication.

8. The method according to claim 5, wherein: The first device is wirelessly communicatively connected to the target receiving device, and Forwarding the first data according to the address information of the target receiving device includes: Perform narrowband wireless communication with the target receiving device based on the narrowband radio technology to determine a first target communication time period for performing broadband wireless communication with the target receiving device; The first data is forwarded to the target receiving device over the first target communication period using the address information of the target receiving device based on UWB radio technology.

9. The method according to claim 1, further comprising: receiving, from a target sending device communicatively connected to the first device, second data for transmission to the second device; The second data is forwarded according to the address information of the second device.

10. The method according to claim 9, wherein: The first device is communicatively connected to the target sending device by wire, and Forwarding the second data according to the address information of the second device includes: Converting the second data based on the wired communication protocol format according to the broadband wireless communication protocol; The converted second data is transmitted to the second device over the communication period using the address information of the second device based on UWB radio technology.

11. The method according to claim 10, wherein: The first device is wirelessly communicatively connected to the target sending device, and The method further includes performing narrowband wireless communication with a target transmitting device based on the narrowband radio technology to determine a second target communication period for performing broadband wireless communication with the target transmitting device; Receiving the second data from the target transmitting device includes receiving the second data from the target transmitting device over the second target communication period using address information of the target transmitting device based on the UWB radio technology; Forwarding the second data according to the address information of the second device includes forwarding the second data to the second device over the communication period using the address information of the second device based on UWB radio technology.

12. The method according to claim 1, further comprising: A sleep message is sent to the second device based on the narrowband radio technology, where the sleep message includes address information of the second device and is used to trigger a broadband radio function of the second device to enter a sleep state.

13. The method according to claim 1, wherein: Performing broadband wireless communication with the second device during the communication period using the address information of the second device based on UWB radio technology to determine whether the second device is within the allowed distance range of the first device includes: Based on UWB radio technology, broadband wireless communication is performed with the second device during the communication period. communication, determining a measured distance between the first device and the second device using ranging data transmitted between the first device and the second device via broadband wireless communication via a ranging algorithm; It is determined whether the measured distance is within the allowable distance range.

14. The method according to claim 1, wherein: The narrowband radio technology includes one of the following: Bluetooth radio technology, Zigbee radio technology, WiFi radio technology, NFC radio technology, RFID radio technology, and narrowband radio technology defined in the UWB standard.

15. The method according to claim 1, wherein: The first device is a gateway node device of the in-vehicle wireless communication system.

16. The method according to claim 1, wherein: The second device is an end node device of the in-vehicle wireless communication system and is associated with a vehicle component.

17. The method according to claim 16, wherein: The vehicle components include at least one of the following: a control module arranged on a vehicle door, a seat control module, a massage control module, a sunroof control module, a back door control module, and a vehicle-mounted sensor.

18. A method for in-vehicle networking communication, applicable to a second device, the method comprising: Sending a status indication message that a broadband radio function of the second device is in an operating state based on narrowband radio technology, the broadband radio function corresponding to UWB radio technology; performing narrowband communication with a first device based on the narrowband radio technology to determine a communication period for performing broadband wireless communication with the first device; The address information of the second device is used to perform broadband wireless communication with the first device during the communication period based on the UWB radio technology.

19. The in-vehicle networking communication method according to claim 18, wherein: Before sending a status indication message that the broadband radio function of the second device is in an operating state, the method further includes: receiving a wake-up message sent by the first device based on narrowband radio technology; If the wake-up message includes the address of the second device, triggering the second device to wake up A wideband radio function, which corresponds to UWB radio technology.

20. The method according to claim 18, wherein: Performing broadband wireless communication with the first device over the communication period using the address information of the second device based on the UWB radio technology includes transmitting first data for transmission to a target receiving device, the first data including address information of the second device and the target receiving device.

21. The method according to claim 18, wherein: Performing broadband wireless communication with the first device during the communication period using the address information of the second device based on the UWB radio technology includes: receiving second data transmitted by the first device based on UWB radio technology; determining whether a destination recipient of the second data includes the second device; If it is determined that the intended recipient of the second data does not include the second device, the second data is discarded.

22. The method according to claim 18, wherein: The second device is an end node device of an in-vehicle wireless communication system, and the first device is a gateway node device of the in-vehicle wireless communication system.

23. The method according to claim 18, wherein: The second device is associated with a vehicle component, and The method further includes: in response to detecting the operation of the vehicle component, causing a broadband radio function of the second device to enter an operating state; Sending a status indication message that the broadband radio function of the second device is in working state based on narrowband radio technology includes: when the broadband radio function of the second device is in working state, sending a status indication message that the broadband radio function of the second device is in working state based on narrowband radio technology.

24. The method of claim 18, further comprising: receiving a sleep message sent by the first device based on the narrowband radio technology; determining whether a destination recipient of the sleep message includes the second device; If it is determined that the intended recipient of the sleep message includes the second device, a broadband radio function of the second device is caused to enter a sleep state.

25. The method of claim 18, wherein: The narrowband radio technology includes one of the following: Bluetooth radio technology, Zigbee radio technology, WiFi radio technology, NFC radio technology, RFID radio technology, and narrowband radio technology defined in the UWB standard.

26. A vehicle-mounted wireless communication device, applied to a first device, the first device comprising: a narrowband communication module configured to send an indication message of a communication period for performing broadband wireless communication with the second device based on narrowband radio technology or receive an indication message of a communication period for performing broadband wireless communication with the second device from the second device based on narrowband radio technology; a broadband communication module configured to perform broadband wireless communication with the second device during the communication period using the address information of the second device based on UWB radio technology; as well as The processing module is configured as follows: determining whether the second device is within an allowable distance range of the first device based on the broadband wireless communication; If it is determined that the second device is not within the allowed distance range of the first device, discarding data from or to the second device, or If it is determined that the second device is within the allowed distance range of the first device, data from or to the second device is allowed.

27. A vehicle-mounted wireless communication device, applied to a second device, the second device comprising: The narrowband communication module is configured as follows: Sending a status indication message that a broadband radio function of the second device is in an operating state based on narrowband radio technology, the broadband radio function corresponding to UWB radio technology; sending an indication message of a communication period for performing broadband wireless communication with the first device based on the narrowband radio technology or receiving an indication message of a communication period for performing broadband wireless communication with the second device based on the narrowband radio technology from the first device; A broadband communication module configured to use the second device based on the UWB radio technology The address information of the first device is used to perform broadband wireless communication with the first device during the communication period.

28. A vehicle-mounted wireless communication device, comprising: processor; as well as A memory, which is used to store computer executable instructions, which, when executed, enable the processor to execute the in-vehicle networking communication method according to any one of claims 1-25.

29. A vehicle-mounted wireless communication system, comprising: A gateway node device, configured to execute the in-vehicle networking communication method according to any one of claims 1 to 17; as well as One or more end node devices wirelessly connected to the gateway node device, each end node device is configured to execute the in-vehicle networking communication method according to any one of claims 18-25, wherein the corresponding communication time periods for each end node device to perform broadband wireless communication with the gateway node device based on UWB radio technology using the address information of each end node device do not overlap with each other.

30. A vehicle, comprising the in-vehicle wireless communication device according to claim 26, 27 or 28 or the in-vehicle wireless communication system according to claim 29.

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