WO2022226707A1

WO2022226707A1 - Rescue method and device, storage medium, and chip system

Info

Publication number: WO2022226707A1
Application number: PCT/CN2021/089732
Authority: WO
Inventors: 孙学全; 王伟健
Original assignee: 华为技术有限公司
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2022-11-03
Also published as: CN115529854A

Abstract

A rescue method and device, a storage medium, and a chip system, used for sending SOS signals even in an environment without a network signal. In the present application, a wireless communication device comprises a radio frequency channel corresponding to C-V2X and a radio frequency channel corresponding to a cellular network, such that once an SOS function of the wireless communication device is enabled, the wireless communication device can still send SOS signals to other terminal devices on the basis of C-V2X even in an environment without a cellular network, thereby facilitating timely rescue by search and rescue personnel.

Description

A rescue method, device, storage medium and chip system

technical field

The present application relates to the field of wireless communication technologies, and in particular, to a rescue method, device, storage medium and chip system.

Background technique

With the improvement of living standards, more and more people like mountaineering, camping, rock climbing, rafting and other outdoor activities. The harsh environment and lack of experience often lead to incidents of missing persons.

At present, almost everyone has a wireless communication device such as a mobile phone. If the current location of the person is not within the coverage of the communication infrastructure such as the base station, they cannot make calls through the mobile phone, resulting in the loss of contact with the outside world and the inability to send a distress signal. . And when others find out, they have missed the golden time of rescue, thus causing irreparable regrets. It can be seen that how to still send out a distress signal in an environment without a network signal has become an urgent problem to be solved.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present application provides a rescue method, device, storage medium and chip system. The wireless communication device includes a radio frequency channel corresponding to C-V2X. In the environment of , it is still possible to send a distress signal to other terminal equipment based on C-V2X through the wireless communication device, so as to assist the search and rescue personnel in timely rescue.

It should be understood that, in the solutions provided by the embodiments of the present application, the wireless communication device may be a wireless communication device, or may be a part of a device in the wireless communication device, such as an integrated circuit product such as a system chip or a communication chip. The wireless communication device may be a computer device that supports wireless communication functionality.

Specifically, the wireless communication device may be a terminal such as a smartphone. A system-on-chip may also be referred to as a system on chip (system on chip, SoC), or simply referred to as a SoC chip. The communication chip may include a baseband processing chip and a radio frequency processing chip. Baseband processing chips are also sometimes referred to as modems or baseband chips. The radio frequency processing chip is also sometimes referred to as a radio frequency transceiver (transceiver) or radio frequency chip. In physical implementation, some or all of the communication chips 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.

In a first aspect, a wireless communication device is provided, including a first radio frequency channel, a second radio frequency channel and a processing module. The processing module is coupled to the first radio frequency channel. The processing module is coupled to the second radio frequency channel. The first radio frequency channel is used to transmit messages in the frequency band corresponding to C-V2X based on the cellular Internet of Vehicles. The second radio frequency channel is used to transmit messages in the frequency band corresponding to the cellular network. The processing module is configured to send a preset first help message through the first radio frequency channel after the help function of the wireless communication device is enabled, and the first help message is a message in the frequency band corresponding to the C-V2X. Therefore, even in an environment without a cellular network, the user can still send a distress message to other terminal devices based on C-V2X through the wireless communication device, so as to assist the search and rescue personnel in timely rescue.

In a possible implementation manner, the first processing module is specifically configured to enable the help function in response to an operation in which the user presses the first mechanical button for a duration of not less than the first duration. Through a relatively simple operation on the first mechanical button, the user can directly and quickly activate the help-seeking function, thereby speeding up the help-seeking speed. And by integrating the help-seeking function into the wireless communication device, the user can flexibly activate the help-seeking function through the first mechanical button according to his own needs, so that the user does not need to carry a special help-seeking device for help, which can improve the convenience of the user, and also Improve the success rate of search and rescue when users are trapped.

In a possible implementation manner, the first processing module is specifically configured to: display the first interface in response to an operation in which the user presses the first mechanical key for a duration not less than the first duration. In response to a click operation on the first icon of the first interface, the help-seeking function is enabled. In this way, the flexibility of the scheme can be improved.

In a possible implementation manner, the first mechanical key is a power key or a volume control key. In this way, the number of buttons set on the wireless communication device can be reduced as much as possible, the hardware structure of the wireless communication device will not be changed greatly, and the structure of the existing wireless communication device can be further compatible.

In a possible implementation manner, the first processing module is specifically configured to: in response to the user's click operation on the second icon of the second interface, enable the help function. In this way, the distress call function can be enabled through the icon of the wireless communication device, which can improve the flexibility of the solution.

In a possible implementation manner, the first processing module is further configured to: display the second interface in response to the pull-down operation performed by the user in the preset top area of the third interface. In this way, the user can open the second interface more quickly.

In a possible implementation manner, the second interface further includes at least one of the following icons: an icon for turning on or off the wireless high-fidelity Wi-Fi function; an icon for the user to turn on or off the Bluetooth function; icon to turn off the flashlight function; icon to turn ring mode on or off; icon to turn on or off automatic screen selection; icon to turn on or off the location function; icon to turn on or off the screenshot function; icon to turn on or off the eye protection mode; icon to turn on or off the personal hotspot function; icon to turn on or off the screen recording function icon; the icon used to turn on or off the wireless projection function; the icon used to turn on or off the sharing function; or the icon used to turn on or off the NFC function of the near field communication technology. In this way, it can be seen that the second icon is located on the shortcut control interface of the wireless communication device, so that the user can find the icon more quickly.

In a possible implementation manner, the first distress message further includes at least one of the following contents: user identification information of the rescuer; the generation time of the first distress message; the identifier of the first distress message; or, the first The distress message includes first location information where the wireless communication device is located when the first distress message is sent. In this way, the rescuer can find the rescuer more quickly according to the first rescue message, and the speed of being searched and rescued can be further improved.

In a possible implementation manner, after the first help function is enabled through the first switch: based on the P2X mode related to the C-V2X side link communication, the first help message is sent through the first radio frequency channel. Since the P2X mode can further reduce power consumption, sending messages based on P2X can further reduce the power consumption of the wireless communication device, save the power of the wireless communication device as much as possible, and then improve the possibility of the user being searched and rescued.

In a possible implementation manner, the processing module is specifically configured to: when the first distress message is sent based on the P2X mode related to the C-V2X sidelink communication: based on the random selection mode, from the preset A resource for transmitting the first distress message is selected from the configured resource pool. In this way, resource selection can be performed without receiving a signal, and the partial sensing mode can save more power consumption compared to the full sensing mode and the partial sensing mode.

In a possible implementation manner, the processing module is further configured to: when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a random selection mode, enable the wireless The first radio frequency receiving channel of the first radio frequency channels of the communication device is in a power-down state. Due to the random selection mode, it is not necessary to rely on the signal quality of the received signal for resource selection, so the first radio frequency receiving channel can be powered off, thereby further saving power consumption.

In a possible implementation, based on a partial sensing mode, a resource for transmitting the first distress message is selected from a preconfigured resource pool. In this way, it is not necessary to receive signals during the entire time window required by the full perception mode for resource selection, but instead signals can be received only during a period of the time window, and then based on the signals received during the period The selection of resources, so that the partial sensing mode can save more power than the full sensing mode.

In a possible implementation manner, the processing module is specifically configured to: when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a partial Sensing mode: A first radio frequency receiving channel in a radio frequency channel receives a signal of a third duration, and selects a resource for transmitting the first distress message from a preconfigured resource pool according to the signal received within the third duration. The third duration is less than the fourth duration, and the fourth duration is the duration of the received signal when the resource for transmitting the first distress message is selected from the preconfigured resource pool in the Sensing mode.

In a possible implementation, when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a partial Sensing mode, the first radio frequency channel of the wireless communication device is enabled The first radio frequency receiving channel in the device is intermittently powered down. Due to the partial sensing mode, the length of the time period required to receive the signal is smaller than the time window required by the full sensing mode, so the first radio frequency receiving channel can be intermittently powered off, thereby further saving power consumption.

In a possible implementation manner, the number of times of sending the first distress message is at least one of the following: a preset value; or, is positively related to the power of the wireless communication device. In this way, power consumption can be further reduced.

In a possible implementation manner, when the C-V2X is LTE-V2X, the frequency band corresponding to the LTE-V2X includes: 5905MHz-5925MHz.

In a possible implementation manner, the processing module is further configured to: attempt an emergency call through the second radio frequency channel before sending the first distress message through the first radio frequency channel after the first help function is enabled through the first switch. In this way, when there is a cellular network, the search and rescue speed can be accelerated by calling as much as possible.

In a possible implementation manner, the processing module is further configured to: play a pre-stored distress recording when the emergency call is successful. In this way, if the user is in a coma or is inconvenient to speak, a distress message can also be sent to the caller.

In a possible implementation manner, the processing module is further configured to: in the case of failure of the emergency call, perform at least one of the following: disable the cellular network of the wireless communication device. In this way, power consumption can be further reduced in the absence of cellular network coverage.

In a possible implementation manner, the processing module is further configured to enter a sleep state after the first help function is turned on through the first switch and after the first help message is sent through the first radio frequency channel, and the sleep duration may be a preset value . In a possible implementation, the sleep duration may be inversely related to the power of the wireless communication device. In this way, power consumption can be further reduced.

In a possible implementation manner, the processing module is further configured to: after the sleep time period is reached, the wireless communication device acquires the second location information of the wireless communication device. When the distance between the locations is greater than the preset distance threshold: cancel the disablement of the cellular network of the wireless communication device, and attempt an emergency call based on the cellular network through the first radio frequency channel. When the user moves a large distance, it is likely to move to the coverage area of the cellular network. In this case, trying to make an emergency call based on the cellular network can further increase the search and rescue speed.

In a possible implementation manner, the processing module is further configured to: record first disabling state information of the first module after enabling the rescue function through the first switch, where the first disabling state information is used to indicate that the first module is on Whether the SOS function was disabled before; if the first disabling state information indicates that the first module is not disabled before the SOS function is turned on, the first module is disabled. In this way, power consumption can be further reduced.

In a possible implementation manner, the processing module is further configured to: cancel the A module is disabled. In this way, after the user exits the distress mode, various settings of the wireless communication device can be restored to the state before the distress mode is turned on.

In a possible implementation manner, the first module includes at least one of the following: an NFC module; a Wi-Fi module; or a Bluetooth module. Since the first modules are all high power consumption modules, turning off the first module after turning on the distress mode can further reduce the power consumption of the wireless communication device.

In a possible implementation manner, the processing module is further configured to: after the search and rescue function of the wireless communication device is enabled, receive a second rescue message through the first radio frequency channel, where the second rescue message is a message in a frequency band corresponding to C-V2X . In this way, the wireless communication device can integrate the rescue function and the search and rescue function into one, so that the user can be a rescuer or a rescuer, thereby providing the user with more choices.

In a possible implementation manner, the processing module is specifically configured to: display the first interface in response to an operation in which the user presses the first mechanical key for a duration not less than the first duration. In response to the click operation on the third icon on the first interface, the search and rescue function is enabled. In this way, users can flexibly activate the search and rescue function according to their own needs.

In a possible implementation manner, the processing module is specifically configured to: display the first interface in response to an operation in which the user presses the first mechanical key for a duration not less than the first duration. In response to the click operation on the first icon of the first interface, a fourth interface is displayed, and the fourth interface displays information indicating that the rescue function has been turned on. In response to the click operation on the fourth icon of the fourth interface, the help-seeking function is turned off, and the first interface is displayed. In response to the click operation on the third icon on the first interface, the search and rescue function is enabled. In this way, the rescue function and the search and rescue function can be integrated into one application, and the user can choose to use it according to their needs. In this way, when the user and the companion are lost, the lost companion can be found more quickly.

In a possible implementation manner, the processing module is further configured to: after receiving the second distress message, display the location information of the wireless communication device sending the second distress message on the interface of the wireless communication device.

In a possible implementation manner, the processing module is further configured to: after receiving the second distress message, when parsing out the indication information in the second distress message for indicating that the second distress message is a distress message, the wireless communication device The location information of the wireless communication device sending the second distress message is displayed on the interface.

In a possible implementation manner, the wireless communication device sending the second distress message generates according to the location information carried in the second distress message. In this way, the search and rescue speed can be improved.

In a possible implementation manner, the location information of the wireless communication device sending the second distress message is inferred according to the signal strength of the second distress message. In this way, even if the location information is not carried in the second rescue message, the approximate location area of the rescuer can also be increased, thereby improving the search and rescue speed.

In a possible implementation, the wireless communication device is a smartphone. Since almost everyone has a smartphone nowadays, and users basically carry it with them, integrating the help function on the smartphone can improve the convenience for users to ask for help, thereby increasing the possibility of users being searched and rescued.

In a second aspect, an embodiment of the present application provides a rescue method, which is applicable to a wireless communication device including a first radio frequency channel, a second radio frequency channel, and a processing module, the processing module is coupled to the first radio frequency channel, and the processing module and the second radio frequency channel are coupled coupling; the first radio frequency channel is used to transmit messages in the frequency band corresponding to C-V2X based on the cellular Internet of Vehicles; the second radio frequency channel is used to transmit messages in the frequency band corresponding to the cellular network. The method includes: after enabling the rescue function of the method, sending a preset first rescue message through a first radio frequency channel, where the first rescue message is a message in a frequency band corresponding to C-V2X. Therefore, even in an environment without a cellular network, the user can still send a distress message to other terminal devices based on C-V2X through the wireless communication device, so as to assist the search and rescue personnel in timely rescue.

In a possible implementation manner, the method further includes, in response to an operation that the user presses the first mechanical button for a duration of not less than the first duration, enabling a help function. Through a relatively simple operation on the first mechanical button, the user can directly and quickly activate the help-seeking function, thereby speeding up the help-seeking speed. And by integrating the help-seeking function into the wireless communication device, the user can flexibly activate the help-seeking function through the first mechanical button according to his own needs, so that the user does not need to carry a special help-seeking device for help, which can improve the convenience of the user, and also Improve the success rate of search and rescue when users are trapped.

In a possible implementation manner, the method further includes displaying a first interface in response to an operation that the user presses the first mechanical key for a duration not less than the first duration. In response to a click operation on the first icon of the first interface, the help-seeking function is enabled. In this way, the flexibility of the scheme can be improved.

In a possible implementation manner, the method further includes, in response to a user's click operation on the second icon of the second interface, enabling a help function. In this way, the distress call function can be enabled through the icon of the wireless communication device, which can improve the flexibility of the solution.

In a possible implementation manner, before enabling the help function in response to the user's click operation on the second icon of the second interface, the method further includes responding to a pull-down performed by the user on the preset top area of the third interface operation to display the second interface. In this way, the user can open the second interface more quickly.

In a possible implementation manner, after enabling the rescue function of the method, sending a preset first rescue message through the first radio frequency channel includes: after enabling the rescue function through the first switch: based on the communication with the C-V2X side In the P2X mode related to the link communication, the first distress message is sent through the first radio frequency channel. Since the P2X mode can further reduce power consumption, sending messages based on P2X can further reduce the power consumption of the wireless communication device, save the power of the wireless communication device as much as possible, and then improve the possibility of the user being searched and rescued.

In a possible implementation manner, after enabling the help function of the method, sending a preset first help message through the first radio frequency channel includes: when the first help message is sent based on the P2X mode related to the C-V2X sidelink communication In the case of a distress message: based on a random selection mode, a resource for transmitting the first distress message is selected from a preconfigured resource pool. In this way, resource selection can be performed without receiving a signal, and the partial sensing mode can save more power consumption compared to the full sensing mode and the partial sensing mode.

In a possible implementation manner, the method further includes: when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a random selection mode, enabling the wireless communication device The first radio frequency receiving channel of the first radio frequency channels is in a power-down state. Due to the random selection mode, it is not necessary to rely on the signal quality of the received signal for resource selection, so the first radio frequency receiving channel can be powered off, thereby further saving power consumption.

In a possible implementation manner, the method further includes: selecting a resource for transmitting the first distress message from a preconfigured resource pool based on a partial sensing mode. In this way, it is not necessary to receive signals during the entire time window required by the full perception mode for resource selection, but instead signals can be received only during a period of the time window, and then based on the signals received during the period The selection of resources, so that the partial sensing mode can save more power than the full sensing mode.

In a possible implementation, when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a partial Sensing mode: through the first radio frequency channel The radio frequency receiving channel receives a signal of a third duration, and selects a resource for transmitting the first distress message from a preconfigured resource pool according to the signal received within the third duration. The third duration is less than the fourth duration, and the fourth duration is the duration of the received signal when the resource for transmitting the first distress message is selected from the preconfigured resource pool in the Sensing mode.

In a possible implementation, when a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a partial Sensing mode, the first radio frequency channel of the wireless communication device is enabled The first radio frequency receiving channel in the device is intermittently powered off. Due to the partial sensing mode, the length of the time period required to receive the signal is smaller than the time window required by the full sensing mode, so the first radio frequency receiving channel can be intermittently powered off, thereby further saving power consumption.

In a possible implementation manner, after the first help function is turned on through the first switch, and before the first help message is sent through the first radio frequency channel, the method further includes: attempting an emergency call through the second radio frequency channel. In this way, when there is a cellular network, the search and rescue speed can be accelerated by calling as much as possible.

In a possible implementation manner, the method further includes: in the case that the emergency call is successful, playing a pre-stored distress recording. In this way, if the user is in a coma or is inconvenient to speak, a distress message can also be sent to the caller.

In one possible implementation, in the event of an emergency call failure, at least one of the following is performed: a cellular network of the wireless communication device is disabled. In this way, power consumption can be further reduced in the absence of cellular network coverage.

In a possible implementation manner, after the first help function is turned on through the first switch, and after the first help message is sent through the first radio frequency channel, the method further includes: entering a sleep state, and the sleep duration may be a preset value. In a possible implementation, the sleep duration may be inversely related to the power of the wireless communication device. In this way, power consumption can be further reduced.

In a possible implementation manner, the method further includes: after the sleep time period is reached, the wireless communication device acquires the second location information of the wireless communication device, when the first location information and the two locations indicated by the second location information are between the two locations indicated by the first location information and the second location information. When the distance between them is greater than the preset distance threshold: cancel the disablement of the cellular network of the wireless communication device, and attempt an emergency call based on the cellular network through the first radio frequency channel. When the user moves a large distance, it is likely to move to the coverage area of the cellular network. In this case, trying to make an emergency call based on the cellular network can further increase the search and rescue speed.

In a possible implementation manner, after enabling the rescue function through the first switch, the method further includes: recording first disabling state information of the first module, where the first disabling state information is used to indicate whether the first module has turned on the rescue function before turning on the rescue function. Disabled; in the case that the first disabled state information indicates that the first module is not disabled before turning on the help function, the first module is disabled. In this way, power consumption can be further reduced.

In a possible implementation manner, the method further includes: when the first disabling state information indicates that the first module is not disabled before turning on the SOS function, after exiting the SOS mode through the first switch, canceling the first module disabled. In this way, after the user exits the distress mode, various settings of the wireless communication device can be restored to the state before the distress mode is turned on.

In a possible implementation manner, the method further includes: after enabling the search and rescue function of the wireless communication device, receiving a second rescue message through the first radio frequency channel, where the second rescue message is a message in a frequency band corresponding to C-V2X. In this way, the wireless communication device can integrate the rescue function and the search and rescue function into one, so that the user can be a rescuer or a rescuer, thereby providing the user with more choices.

In a possible implementation manner, the method further includes: displaying a first interface in response to an operation that the user presses the first mechanical key for a duration not less than the first duration. In response to the click operation on the third icon on the first interface, the search and rescue function is enabled. In this way, users can flexibly activate the search and rescue function according to their own needs.

In a possible implementation manner, the method further includes: displaying a first interface in response to an operation that the user presses the first mechanical key for a duration not less than the first duration. In response to the click operation on the first icon of the first interface, a fourth interface is displayed, and the fourth interface displays information indicating that the rescue function has been turned on. In response to the click operation on the fourth icon of the fourth interface, the help-seeking function is turned off, and the first interface is displayed. In response to the click operation on the third icon on the first interface, the search and rescue function is enabled. In this way, the rescue function and the search and rescue function can be integrated into one application, and the user can choose to use it according to their needs. In this way, when the user and the companion are lost, the lost companion can be found more quickly.

In a possible implementation manner, after the search and rescue function of the wireless communication device is turned on, the method further includes: after receiving the second help message, displaying the location of the wireless communication device sending the second help message on the interface of the wireless communication device information.

In a possible implementation manner, after enabling the search and rescue function of the wireless communication device, the method further includes: after receiving the second rescue message, when parsing the second rescue message, the method used to indicate that the second rescue message is a rescue message is parsed. If the indication information is displayed, the location information of the wireless communication device sending the second distress message is displayed on the interface of the wireless communication device.

In a possible implementation manner, the location information of the wireless communication device sending the second distress message may be inferred according to the signal strength of the second distress message. In this way, even if the location information is not carried in the second rescue message, the approximate location area of the rescuer can also be increased, thereby improving the search and rescue speed.

In a possible implementation, the wireless communication device is a smartphone. Since almost everyone has a smartphone nowadays, and the user basically carries it with him, integrating the help function on the smartphone can improve the convenience for the user to ask for help, thereby increasing the possibility of the user being searched and rescued.

The present application further provides a communication device, including: a processor and a memory; wherein, the memory is used for storing program instructions; the processor is used for executing the program instructions stored in the memory, so as to implement any possible method in the second aspect.

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, and the memory stores program instructions; 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 second aspect.

The present application provides a computer-readable storage medium, in which computer-readable instructions are stored, and when the computer reads and executes the computer-readable instructions, the communication apparatus is made to execute the method in any of the above possible designs.

The present application provides a computer program product that, when a computer reads and executes the computer program product, causes a communication apparatus to perform the method in any of the above possible designs.

The present application provides a chip, which is connected to a memory, and is used for reading and executing a software program stored in the memory, so as to implement the method in any of the above possible designs.

Description of drawings

FIG. 1 is a schematic diagram of a scenario to which an embodiment of the present application is applicable;

FIG. 2 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application;

FIG. 3a is a schematic structural diagram of another wireless communication device provided by an embodiment of the present application;

FIG. 3b is a schematic structural diagram of another communication device provided in an embodiment of the present application;

FIG. 4a exemplarily shows a front view and a right side view of a wireless communication device provided by an embodiment of the present application, taking the wireless communication device as a smartphone as an example;

FIG. 4b is a schematic diagram of turning on the distress function of the wireless communication device in FIG. 4a according to an embodiment of the application;

FIG. 5 is a schematic diagram of an interface of a wireless communication device provided by an embodiment of the present application, taking the wireless communication device as a smartphone as an example;

FIG. 6 is a schematic interface diagram of a wireless communication device according to an embodiment of the present application;

7 is a schematic flowchart of a rescue method applicable to a wireless communication device according to an embodiment of the present application;

FIG. 8 is a schematic flowchart of a rescue method applicable to a wireless communication device according to an embodiment of the present application.

Detailed ways

The embodiments of the present application are further described below with reference to the accompanying drawings.

FIG. 1 exemplarily shows a schematic diagram of a scenario to which this embodiment of the present application applies. As shown in FIG. 1 , there may be one or more network devices 102 and one or more terminal devices in the scenario, such as shown in FIG. 1 . terminal equipment 103, terminal equipment 104, and terminal equipment 105. As shown in FIG. 1 , the scenario also includes a satellite system 101, and the satellite system 101 can be used as a clock synchronization source for the terminal device. The satellite system 101 may be, for example, a global navigation satellite system (Global Navigation Satellite System, GNSS), or may be other satellite systems, which are not limited in the embodiments of the present application.

In the embodiment of the present application, the terminal device at least includes a cellular-vehicle to everything (Cellular-vehicle to everything, C-V2X) communication unit. C-V2X is a vehicle networking communication technology based on a cellular network, which is generally used in scenarios such as vehicle-vehicle interconnection, vehicle-infrastructure interconnection, and vehicle-person interconnection. For example, the C-V2X communication unit 1031 in the terminal device 103 , the C-V2X communication unit 1041 in the terminal device 104 , and the C-V2X communication unit 1051 in the terminal device 105 are provided. The terminal device in this embodiment of the present application may also be provided with a cellular network communication unit, for example, the cellular network communication unit 1032 in the terminal device 103 and the cellular network communication unit 1042 in the terminal device 104. It should be noted that the cellular network communication unit in the terminal device in this embodiment of the present application may be optional, and the cellular network communication unit 1032 and the cellular network communication unit 1042 in FIG. 1 are shown as dotted lines, which are used to indicate that the two units are optional land.

When the terminal device is within the signal coverage of the network device, the terminal device can establish a connection with the network device based on the cellular network communication unit, so as to communicate with the outside world. For example, the terminal device 103 and the terminal device 104 are within the signal coverage range 1021 of the network device 102. Based on the cellular network communication unit 1032 and the cellular network communication unit 1042, the terminal device 103 can establish a connection between the network device 102 and the terminal device 104 and transmit Data, for example, the terminal device 103 can make a call or send a message to the terminal device 104 .

When the terminal device is outside the signal coverage of the network device, the terminal device can transmit information with other terminal devices based on the C-V2X communication unit. For example, the terminal device 103 is within the signal coverage range 1021 of the network device 102. Based on the C-V2X communication unit 1031, the terminal device 103 can send messages based on the C-V2X sidelink communication protocol. Based on the C-V2X communication unit 1041, the terminal device 104 may receive the message based on the C-V2X sidelink communication protocol.

For example, if the terminal device 103 in FIG. 1 is a device for a rescuer, it may be referred to as a rescue device. After the rescue device turns on the rescue function, it can broadcast a message based on C-V2X, and the message has a certain area that can be received. When the terminal device 104 or the terminal device 105 (the terminal device 104 and the terminal device 105 are the devices of the search and rescue personnel, it can be called a search and rescue device). ) moves to this area, the message broadcast by the terminal device 103 can be received based on C-V2X. Therefore, the user of the terminal device 103 can be rescued more quickly.

It can be seen that when people are trapped or need rescue, they are usually outside the signal coverage of network equipment and cannot communicate with the outside world through the cellular network. However, in the embodiment of the present application, the terminal device is configured with a C-V2X communication unit, so that the terminal device can send a message based on the C-V2X sidelink communication protocol when it is outside the signal coverage of the network device, thereby Increases the likelihood of being rescued.

On the other hand, since personnel search and rescue can be performed based on the C-V2X signal in the embodiment of the present application, compared with the solution based on the radio frequency identification (Radio Frequency Identification, RFID) technology to search for trapped users, the coverage of the C-V2X signal The scope is larger, laying the foundation for more timely search for trapped users. In addition, the C-V2X communication unit can be integrated on the handheld terminal device, so that the user can carry it with him. Compared with the rescue device that needs to carry a specific beacon, the solution provided by the embodiment of the present application can greatly reduce the threshold for seeking help and increase the Chances of being rescued. Moreover, compared with rescue technologies such as thermal imaging, the signals sent based on C-V2X in the embodiments of the present application are less susceptible to environmental interference.

Hereinafter, some terms and nouns involved in the embodiments of the present application will be introduced first with reference to FIG. 1 .

(1) Network device 102 .

The network device 102, for example, includes an access network (AN) device, such as a base station (eg, an access point), which may refer to a device in the access network that communicates with wireless terminal devices through one or more cells over the air interface. The base station may be used to convert received air frames to Internet Protocol (IP) packets, and act as a router between the terminal device and the rest of the access network, which may include an IP network. A road side unit (road side unit, RSU) may be a fixed infrastructure entity supporting V2X applications, and may exchange messages with other entities supporting V2X applications. The network device can also coordinate the attribute management of the air interface. For example, the network equipment may include an LTE system or an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in long term evolution-advanced (LTE-A), or may also include fifth generation mobile The next generation node B ( ^gNB ) in the new radio (NR) system of the communication technology (the 5th generation, 5G) may also include the cloud radio access network (Cloud RAN) A centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU) in the system are not limited in the embodiments of the present application.

(2) Terminal equipment.

A C-V2X communication unit is configured in the terminal device in this application. In this embodiment of the present application, the terminal device may communicate with other objects based on the wireless communication technology between the vehicle and the outside world (for example, vehicle to everything (V2X) communication between the vehicle and other devices). For example, communication between terminal devices can be implemented based on C-V2X without going through network devices. The terminal devices in this application may include terminal devices applied to the Internet of Vehicles, and the terminal devices in this application may also be referred to as Internet of Vehicles terminal devices, Internet of Vehicles terminals, Internet of Vehicles communication devices, or vehicle-mounted terminal devices, and so on.

Specifically, the terminal device can execute the related business processes of the Internet of Vehicles 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 may be used to execute the method process related to the terminal device in the embodiments of the present application, such as a telematics box (T-Box), a domain controller (domain controller) , DC), multi-domain controller (MDC), on board unit (OBU) or car networking chip, etc.

In the embodiments of the present application, the terminal device may communicate with other objects based on the wireless communication technology between the vehicle and the outside world (for example, V2X). For example, communication between terminal devices can be implemented based on V2X. Communication between terminal devices and other objects may be based on wireless high-fidelity (eg, wireless fidelity (Wi-Fi)), fifth-generation (5th generation, 5G) mobile communication technologies, and the like.

The terminal device in this embodiment of the present application may further include a device that provides voice and/or data connectivity to the user, for example, may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal equipment may communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN.

The terminal equipment may further include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, V2X terminal equipment, machine-to-machine/machine-type communication (machine-to-machine/machine-type communications, M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station) ), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or user equipment (user device), etc. For example, these may include mobile telephones (or "cellular" telephones), computers with mobile terminal equipment, portable, pocket-sized, hand-held, computer-embedded mobile devices, and the like. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants), PDA), etc. Also includes constrained devices, such as devices with lower power consumption, or devices with limited storage capacity, or devices with limited computing power, etc. For example, it includes information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners. It also includes vehicles or non-motor vehicles, etc., and may also be components or chips in these devices.

In this embodiment of the present application, the terminal and the network device may know 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, etc., such as the basic radio frequency band configuration. The frequency band can be determined by the center frequency of the carrier (referred to as the carrier frequency) and the bandwidth of the carrier. The pre-defined configurations of these systems may be part of standard protocols of wireless communication systems, or may be determined through interactions between terminals and network devices. The content of the relevant standard protocol may be pre-stored in the memory of the terminal and the base station, or embodied in the hardware circuit or software code of the terminal and the network device.

(3) C-V2X business.

A possible C-V2X related parameter is provided in the embodiment of this application. With the development of the technology or the change of the region, the related parameter of the C-V2X may also change.

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

Frequency band (also called frequency range): 5855-5925 megahertz (MHz); wherein, in the case where C-V2X can be LTE-V2X, the frequency band corresponding to LTE-V2X includes: 5905MHz-5925MHz.

Channel bandwidth: 10/20/30/40MHz; when C-V2X is LTE-V2X, the channel bandwidth can be: 10/20MHz. When C-V2X is NR-V2X, the channel bandwidth can be: 20/30/40MHz.

Modulation mode: quadrature phase shift keying (quadrature phase shift keyin, QPSK), 16 quadrature amplitude modulation (quadrature amplitude modulation, QAM), 64QAM and 256QAM.

If the communication device transmits signals through the radio frequency transmission channel based on C-V2X, the working parameters of each device in the radio frequency transmission channel need to meet the relevant requirements of C-V2X. If the communication device transmits signals through the radio frequency receiving channel based on C-V2X, the working parameters of each device in the radio frequency receiving channel need to meet the relevant requirements of C-V2X.

(4) The business of the cellular network.

The embodiments of the present application involve cellular network services. In the embodiments of the present application, the cellular network services correspond to many frequency bands. For example, in a possible example, the cellular network services may deploy B3 or B39.

The communication device transmits signals through the radio frequency transmission channel based on the cellular network, and the working parameters of each device in the radio frequency transmission channel need to meet the relevant requirements of the cellular network. The communication device transmits signals through the radio frequency receiving channel based on the cellular network, and the working parameters of each device in the radio frequency receiving channel need to meet the relevant requirements of the cellular network.

FIG. 2 exemplarily shows a schematic structural diagram of a wireless communication apparatus provided by an embodiment of the present application. The wireless communication apparatus may be a terminal device in this embodiment of the present application, for example, the terminal device 103 , the terminal device 104 , or the terminal device 105 in FIG. 1 .

It should be understood that the illustrated terminal device is only an example and that the terminal device may have more or fewer components than those shown in the figures, may combine two or more components, or may have different component configurations . The various components shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

As shown in FIG. 2, the terminal device may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, Antenna 1, Antenna 2, Antenna 3, Mobile Communication Module 150, Wireless Communication Module 160, C-V2X Communication Module 161, Audio Module 170, Speaker 170A, Receiver 170B, Microphone 170C, Headphone Interface 170D, Sensor Module 180, Key 190, Motor 191, indicator 192, camera 193, display screen 194, and subscriber identification module (SIM) card interface 195 and so on. The sensor module 180 may include a pressure sensor 180A, a gyro sensor 180B, an acceleration sensor 180E, a distance sensor 180F, a fingerprint sensor 180H, a touch sensor 180K, an ambient light sensor 180L, and the like. Antenna 1 and antenna 2 are used as examples in FIG. 2 , optionally, other antennas may also be included.

Below in conjunction with Fig. 2, each component of the terminal device is introduced in detail:

The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, memory, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU) Wait. Wherein, different processing units may be independent devices, or may be integrated in one or more processors. Among them, the controller can be the nerve center and command center of the terminal device. The controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be directly called from the memory, thereby avoiding repeated access, reducing the waiting time of the processor 110, and thus improving the efficiency of the system.

When the processor 110 integrates different devices, such as integrating a CPU and a GPU, the CPU and the GPU may cooperate to execute the methods provided in the embodiments of the present application. Fast processing efficiency.

In some embodiments, the processor 110 may include one or more interfaces. For example, the interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver ( universal asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface , and/or Universal Serial Bus (USB) interface, etc.

The charging management module 140 is used to receive charging input from the charger. The charger may be a wireless charger or a wired charger.

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be provided in the processor 110 . In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.

The wireless communication function of the terminal device can be realized by antenna 1, antenna 2, antenna 3, mobile communication module 150, wireless communication module 160, C-V2X communication module 161, modem processor and baseband processor.

Antenna 1, Antenna 2 and Antenna 3 are used to transmit and receive electromagnetic wave signals. Each antenna in a terminal device can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a wireless communication solution including 2G/3G/4G/5G, etc. applied on the terminal device. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA) and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110.

The modem processor may include a modulator and a demodulator. Wherein, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and passed to the application processor. The application processor outputs sound signals through audio devices (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or videos through the display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be independent of the processor 110, and may be provided in the same device as the mobile communication module 150 or other functional modules.

The C-V2X communication module 161 can provide a solution of C-V2X wireless communication applied on the terminal device. The C-V2X communication module 161 may be one or more devices integrating at least one communication processing module. The C-V2X communication module 161 receives electromagnetic waves via the antenna 3 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The C-V2X communication module 161 can also receive the signal corresponding to the C-V2X service to be sent from the processor 110 , frequency-modulate the signal, amplify the signal, and convert it to electromagnetic waves for radiation through the antenna 3 .

The wireless communication module 160 can provide applications on terminal devices including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .

In some embodiments, the antenna 1 of the terminal device is coupled with the mobile communication module 150, the antenna 2 is coupled with the wireless communication module 160, and the antenna 3 is coupled with the C-V2X communication module 161, so that the terminal device can communicate with the network and other device communication. Wireless communication technologies may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband code division Multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (long term evolution, LTE), BT, GNSS, WLAN, NFC, FM , and/or IR technology, etc. GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi-zenith) satellite system, QZSS) and/or satellite based augmentation systems (SBAS).

The terminal device realizes the display function through the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The terminal device can realize the shooting function through ISP, camera 193, video codec, GPU, display screen 194 and application processor.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device. The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example to save files like music, video etc in external memory card.

Internal memory 121 may be used to store computer executable program code, which includes instructions. The internal memory 121 may include a storage program area and a storage data area. The storage program area can store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), and the like. The storage data area can store data (such as audio data, phone book, etc.) created during the use of the terminal device. In addition, the internal memory 121 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash storage (UFS), and the like. The processor 110 executes various functional applications and data processing of the terminal device by executing the instructions stored in the internal memory 121 and/or the instructions stored in the memory provided in the processor.

The terminal device can implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. Such as music playback, recording, etc.

The audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 .

Speaker 170A, also referred to as a "speaker", is used to convert audio electrical signals into sound signals. The terminal device can listen to music through the speaker 170A, or listen to a hands-free call.

The receiver 170B, also referred to as "earpiece", is used to convert audio electrical signals into sound signals. When the terminal device receives a call or voice information, the voice can be received by placing the receiver 170B close to the human ear.

The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 170C through a human mouth, and input the sound signal into the microphone 170C. The terminal device may be provided with at least one microphone 170C. In other embodiments, the terminal device may be provided with two microphones 170C, which can implement a noise reduction function in addition to collecting sound signals. In other embodiments, the terminal device may further be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions.

The fingerprint sensor 180H is used to collect fingerprints. The terminal device can use the collected fingerprint characteristics to unlock the fingerprint, access the application lock, take a picture with the fingerprint, answer the incoming call with the fingerprint, etc. For example, a fingerprint sensor may be configured on the front of the terminal device (below the display screen 194), or a fingerprint sensor may be configured on the back of the terminal device (below the rear camera). In addition, the fingerprint identification function can also be realized by configuring a fingerprint sensor in the touch screen, that is, the fingerprint sensor can be integrated with the touch screen to realize the fingerprint identification function of the terminal device. In this case, the fingerprint sensor may be configured in the touch screen, may be a part of the touch screen, or may be configured in the touch screen in other ways. In addition, the fingerprint sensor can also be implemented as a full-panel fingerprint sensor. Therefore, the touch screen can be regarded as a panel that can perform fingerprint collection at any position. In some embodiments, the fingerprint sensor can process the collected fingerprint (for example, whether the fingerprint is verified) and send it to the processor 110, and the processor 110 performs corresponding processing according to the fingerprint processing result. In other embodiments, the fingerprint sensor can also send the collected fingerprint to the processor 110, so that the processor 110 can process the fingerprint (eg, fingerprint verification, etc.). The fingerprint sensor in the embodiments of the present application may adopt any type of sensing technology, including but not limited to optical, capacitive, piezoelectric, or ultrasonic sensing technology.

The keys 190 include a power key (or referred to as a power-on key), a volume key, and the like. Keys 190 may be mechanical keys. It can also be a touch key. The terminal device can receive key input and generate key signal input related to user settings and function control of the terminal device.

The indicator 192 can be an indicator light, which can be used to indicate the charging state, the change of power, and can also be used to indicate a message, a missed call, a notification, and the like.

Although not shown in FIG. 2 , the terminal device may further include a Bluetooth device, a positioning device, a flash, a pico-projection device, a near field communication (near field communication, NFC) device, etc., which will not be repeated here.

Based on the above content, FIG. 3 a is a schematic structural diagram of another wireless communication apparatus provided by an embodiment of the present application. The wireless communication apparatus may be a terminal device in this embodiment of the present application, for example, the terminal device 103 , the terminal device 104 , or the terminal device 105 in FIG. 1 . As shown in FIG. 3a, the wireless communication device may include multiple components, such as: application subsystem, memory, massive storage, baseband subsystem, radio frequency integrated circuit (RFIC) , radio frequency front end (radio frequency front end, RFFE) device, and antenna (antenna, ANT). These components may be coupled by various interconnecting buses or other electrical connections.

The application subsystem in FIG. 3 a may be the processor 110 in FIG. 2 , or a module in the processor 110 . The RFIC1 , RFIC2 and RFFE and the baseband subsystem in FIG. 3 a may be all or part of the components in the mobile communication module 150 , the wireless communication module 160 and the C-V2X communication module 161 in FIG. 2 . The antennas ANT_1 to ANT_N in FIG. 3 a may be all or part of the antennas 1 to 3 in FIG. 2 .

In Fig. 3a, ANT_1 represents the first antenna, ANT_N represents the Nth antenna, and N is a positive integer greater than 1. Tx represents the transmit path, Rx represents the receive path, and different numbers represent different paths. Each path can represent a signal processing channel. Among them, FBRx represents the feedback receiving path, PRx represents the primary receiving path, and DRx represents the diversity receiving path. HB means high frequency, LB means low frequency, both refer to the relative high and low frequency. BB stands for baseband. It should be understood that the labels and components in FIG. 3a are for illustrative purposes only, and only serve as a possible implementation manner, and the embodiments of the present application also include other implementation manners. For example, a communication device may include more or fewer paths, including more or fewer components.

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 hardware and software resources of the entire communication device, and provide users with a user interface. In addition, the application subsystem may also include driver software related to other subsystems (eg, baseband subsystem).

The application subsystem may include one or more processors. The multiple processors may be multiple of the same type of processors, or may include a combination of multiple types of processors. In this 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 processor (graphics processing unit, GPU), an image signal processor (image signal processing, ISP), an audio signal processor (audio signal processor, ASP), and an artificial intelligence (artificial intelligence, AI) Apply a specially designed AI processor. AI processors include, but are not limited to, neural network processing units (NPUs), tensor processing units (TPUs), and processors called AI engines.

In Fig. 3a, the radio frequency integrated circuit (including the RFIC 1, and one or more optional RFICs 2) and the radio frequency front-end device may together form the radio frequency subsystem. According to the different receiving or transmitting paths of the signal, the radio frequency subsystem can also be divided into the radio frequency receive path (RF receive path) and the radio frequency transmit path (RF transmit path). The radio frequency receiving channel can receive the radio frequency signal through the antenna, process the radio frequency signal (such as amplifying, filtering and down-converting) to obtain the baseband signal, and transmit it to the baseband subsystem. The RF transmit channel can receive the baseband signal from the baseband subsystem, process the baseband signal (such as upconverting, amplifying and filtering) to obtain the RF signal, and finally radiate the RF signal into space through the antenna. A radio frequency integrated circuit may be referred to as a radio frequency processing chip or a radio frequency chip.

Specifically, the radio frequency subsystem may include an antenna switch, an antenna tuner, a low noise amplifier (LNA), a power amplifier (PA), a mixer (mixer), a local oscillator (LOO) ), filters and other electronic devices, which can be integrated into one or more chips as required. A radio frequency integrated circuit may be referred to as a radio frequency processing chip or a radio frequency chip. The RF front-end device can also be an independent chip. A radio frequency chip is also sometimes referred to as a receiver, transmitter, transceiver, or transceiver. As technology evolves, the antenna can sometimes be considered 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 radio frequency front-end are integrated into the radio frequency chip, and even the antenna and the radio frequency front-end device are integrated into the radio frequency chip, and the radio frequency chip can also be called a radio frequency antenna module or an antenna module.

Similar to the radio frequency subsystem that mainly completes radio frequency signal processing, as the name implies, the baseband subsystem mainly completes the processing of baseband signals. The baseband subsystem can extract useful information or data bits from the baseband signal, or convert the information or data bits into the baseband signal to be transmitted. These information or data bits may be data representing user data or control information such as voice, text, video, etc. For example, the baseband subsystem can implement signal processing operations such as modulation and demodulation, encoding and decoding. The baseband signal processing operations are not identical for different radio access technologies, such as 5G NR and 4G LTE.

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

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 (HACs). 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 hardware accelerators may be more appropriate due to performance or cost considerations. In the specific implementation, the hardware accelerator is mainly implemented by an application specific integrated circuit (ASIC). Of course, the hardware accelerator may also include one or more relatively simple processors, such as MCU.

In this embodiment of the present application, the baseband subsystem and the radio frequency subsystem together form a communication subsystem, which provides a wireless communication function for a 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 processor of the baseband subsystem can run a sub-operating system of the communication subsystem, and the sub-operating system is often an embedded operating system or a real-time operating system, such as the VxWorks operating system or the QuRT system of Qualcomm.

The baseband subsystem may be integrated into one or more chips, which may be referred to as baseband processing chips or baseband chips. The baseband subsystem can be used as a separate chip, which can be called a modem or a modem chip. Baseband subsystems can be manufactured and sold in units of modem chips. Modem chips are also sometimes called baseband processors or mobile processors. In addition, the baseband subsystem can also be further integrated in a larger chip, manufactured and sold in a larger chip unit. This larger chip may be called a system-on-a-chip, system-on-a-chip, or 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 into the hardware components of the chip from other non-volatile memory after the chip leaves the factory, or can also be downloaded online through the network. and update these software components.

In addition, the communication device also includes memory, such as the memory and mass storage in FIG. 3a. In addition, one or more buffers may be included in the application subsystem and the baseband subsystem, respectively. In specific implementation, memory can be divided into volatile memory (volatile memory) and non-volatile memory (non-volatile memory, NVM). Volatile memory refers to memory in which data stored inside is lost when the power supply is interrupted. At present, volatile memory is mainly random access memory (random access memory, RAM), including static random access memory (static RAM, SRAM) and dynamic random access memory (dynamic RAM, DRAM). Non-volatile memory refers to memory whose internal data 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, memory and cache can choose volatile memory, and mass storage can choose non-volatile memory, such as flash memory.

Based on the above content, FIG. 3b exemplarily shows a schematic structural diagram of another communication apparatus provided in this embodiment of the present application. The communication apparatus may be a terminal device in this embodiment of the present application, for example, the terminal device 103 , the terminal device 104 , or the terminal device 105 in FIG. 1 . As shown in FIG. 3b, the communication apparatus may include an application processing unit 31, and the application processing unit 31 may be one or more processors or processing modules in the application subsystem in FIG. 3a. The application processing unit 31 can execute the processing flow of the application layer, for example, it can include some application APP modules (such as the APP of some corresponding applications of Honeycomb, and the APP of the C-V2X application), which is used to process the received information corresponding to the application. , or generate the information for the app.

As shown in FIG. 3b, the communication device may further include a protocol processing unit 32 connected to the application processing unit 31, and the protocol processing unit 32 may include a cellular network protocol processing unit 321 and a C-V2X protocol processing unit 322. The cellular network protocol processing unit 321 is configured to process the data to be transmitted based on the cellular network protocol. The C-V2X protocol processing unit 322 is configured to process the data to be transmitted based on the C-V2X protocol. The protocol processing unit 32 may be a module in the baseband subsystem in FIG. 3a.

As shown in FIG. 3b, the protocol processing unit 32 can be connected to the RFIC 33, and the RFIC 33 includes the cellular network RFIC 331 and the C-V2X RFIC 332. The cellular network RFIC 331 is connected to the cellular network RFFE 341 , and the cellular network RFFE 341 is connected to the cellular network antenna 351 . The application processing unit 31 of the communication device generates a message to be sent based on the cellular network protocol. The message is sequentially processed by the cellular network protocol processing unit 321 , the cellular network RFIC 331 and the cellular network RFFE 341 , and then sent out through the cellular network antenna 351 . If the communication device is within the signal coverage of the network device, the message can be received by the network device. On the other hand, the message sent by the network device can be received by the communication device through the cellular network antenna 351, and then processed by the cellular network RFFE341, the cellular network RFIC331 and the cellular network protocol processing unit 321 in sequence, and sent to the application processing unit 31.

As shown in Figure 3b, the C-V2X RFIC 332 is connected to the C-V2X RFFE 342, and the C-V2X RFFE 342 is connected to the C-V2X antenna 352. The application processing unit 31 of the communication device generates a message to be sent based on the C-V2X protocol. The message is sequentially processed by the C-V2X protocol processing unit 322 , the C-V2X RFIC 332 and the C-V2X RFFE 342 , and then sent out through the C-V2X antenna 352 . For example, it can be sent by broadcasting. Other communication devices located within the signal coverage of the communication device can also receive the message based on the C-V2X protocol. On the other hand, for messages sent by other communication devices based on the C-V2X protocol, the communication device can receive them through the C-V2X antenna 352, and sequentially process them through the C-V2XRFFE342, C-V2XRFIC332 and C-V2X protocol processing unit 322, Sent to the application processing unit 32 .

As shown in Figure 3b, the communication device may further comprise a GNSS unit for receiving GNSS signals. The figure only schematically shows the GNSS unit 36. In practical applications, the GNSS unit 36 may include a GNSS protocol processing unit, a radio frequency channel for transmitting GNSS signals, and an antenna for transmitting and receiving GNSS signals. The GNSS protocol processing unit can be arranged in the baseband subsystem in Fig. 3a.

As shown in FIG. 3b, the communication device may further include some other units, such as a unit with high power consumption (referred to as a high power consumption unit 37 in this embodiment of the present application). In the figure, the high power consumption unit 37 is shown as a dotted line, which means that the high power consumption unit is optional. The high-power-consumption unit 37 includes some units with high power consumption, and in practical applications, for example, it may be a wireless fidelity (Wi-Fi) unit, a Bluetooth unit, and a near field communication (NFC) technology unit etc. The high power consumption unit 37 may also include a protocol processing unit, a radio frequency channel, an antenna for sending and receiving signals, etc., which are not shown in the figure.

The following is an introduction to some of the modules involved after the SOS function is enabled:

(1) Cellular network module.

In this embodiment of the present application, the cellular network module may refer to a series of components or modules in the wireless communication device that may be used for signal transmission based on the cellular network. At least one of RFIC3331 or cellular network RFFE341), a cellular network protocol processing unit 321 for processing cellular network signals, a cellular network antenna 351 for transceiving cellular network signals, and an application processing unit for processing cellular network signals part of the modules, etc.

In this embodiment of the present application, if the cellular network module is disabled, it may be understood that power-off processing is performed on a series of components or modules in the wireless communication device that are used for processing signals in the cellular network frequency band. The radio frequency channel of the signal is powered off, for example, the cellular network protocol processing unit 321 for processing the cellular network signal may be powered off. If the cellular network module is disabled, signals in the cellular network band cannot be transmitted through the cellular network module. The cellular network module is disabled for further power savings.

In this embodiment of the present application, canceling the disabling of the cellular network module can be understood as enabling a series of components or modules in the wireless communication device that can be used to process signals in the cellular network frequency band to enter a working state. After canceling the disabling of the cellular network module, you can try to initiate paging to the outside world through the cellular network module or send information through the cellular network module.

(2) C-V2X module.

In the embodiment of this application, the C-V2X module may refer to a series of components or modules in the wireless communication device that may be used for signal transmission based on C-V2X, for example, may include a radio frequency channel (which may be used to transmit signals in the C-V2X frequency band). including at least one of C-V2X RFIC332 or C-V2X RFFE342), a C-V2X protocol processing unit 322 for processing C-V2X signals, a C-V2X antenna 352 for transmitting and receiving C-V2X signals, and application processing Some modules in the unit for processing C-V2X signals, etc.

In the embodiment of this application, if the C-V2X module is disabled, it may be understood that a series of components or modules in the wireless communication device used for processing signals in the C-V2X frequency band are powered off. The radio frequency channel of the signal in the V2X frequency band is powered off, and for example, the C-V2X protocol processing unit 322 for processing the C-V2X signal can be powered off. If the C-V2X module is disabled, the C-V2X frequency band signal cannot be transmitted through the C-V2X module. Further power savings can be achieved by disabling the C-V2X module.

In this embodiment of the present application, canceling the disabling of the C-V2X module can be understood as enabling a series of components or modules in the wireless communication device that can be used to process signals in the C-V2X frequency band to enter a working state. After canceling the disabling of the C-V2X module, information can be sent through the C-V2X protocol.

(3) Positioning module.

The positioning module in this embodiment of the present application may be a GNSS module. The positioning module refers to a series of components or modules in the wireless communication device that can be used to position the wireless communication device, for example, it may include a radio frequency channel for transmitting GNSS signals, a protocol processing unit for processing GNSS signals, and a protocol processing unit for transmitting and receiving GNSS signals. Signal antenna, and some modules in the application processing unit for processing GNSS signals, etc. The GNSS unit 36 in the aforementioned FIG. 3b may include a radio frequency channel for transmitting GNSS signals, a protocol processing unit for processing GNSS signals, and an antenna for transmitting and receiving GNSS signals.

In this embodiment of the present application, if the positioning module is disabled, it may be understood that a series of components or modules in the wireless communication device that can be used for positioning the wireless communication device are powered off, for example, a radio frequency channel that transmits and receives GNSS signals can be processed. Power off, for example, the protocol processing unit for processing GNSS signals can be powered off. If the positioning module is disabled, the current location information of the wireless communication device cannot be obtained through the positioning module. Disabling the positioning module can further save power.

In this embodiment of the present application, canceling the disabling of the positioning module can be understood as enabling a series of components or modules in the wireless communication device that can be used to position the wireless communication device to enter a working state. After the disabling of the positioning module is cancelled, the current position information of the wireless communication device can be acquired through the positioning module.

(4) wireless fidelity (wireless fidelity, Wi-Fi) module.

In this embodiment of the present application, the Wi-Fi module may refer to a series of components or modules in the wireless communication device that can be used to transmit signals based on Wi-Fi. A protocol processing unit for processing Wi-Fi signals, an antenna for sending and receiving Wi-Fi signals, and some modules in the application processing unit for processing Wi-Fi signals.

In this embodiment of the present application, if the Wi-Fi module is disabled, it may be understood that a series of components or modules in the wireless communication device used for processing Wi-Fi signals are powered off, for example, the transmission of Wi-Fi signals may be processed. The radio frequency channel of the device is powered off. For example, the protocol processing unit for processing Wi-Fi signals can be powered off. If the Wi-Fi module is disabled, the Wi-Fi signal cannot be transmitted through the Wi-Fi module. Disabling the Wi-Fi module can further save power.

In this embodiment of the present application, canceling the disablement of the Wi-Fi module can be understood as enabling a series of components or modules in the wireless communication device that can be used to process Wi-Fi signals to enter a working state. After the Wi-Fi module is disabled, the surrounding Wi-Fi signals can be inquired through the Wi-Fi module, and after a Wi-Fi connection is established, data can be transmitted based on Wi-Fi.

(5) Bluetooth module.

In this embodiment of the present application, a Bluetooth module may refer to a series of components or modules in a wireless communication device that may be used for signal transmission based on Bluetooth, for example, may include a radio frequency channel for transmitting signals in a frequency band corresponding to Bluetooth, a A protocol processing unit, an antenna for sending and receiving Bluetooth signals, and some modules in the application processing unit for processing Bluetooth signals, etc.

In the embodiment of the present application, if the Bluetooth module is disabled, it may be understood that a series of components or modules used for processing Bluetooth signals in the wireless communication device are powered off, for example, a radio frequency channel that transmits Bluetooth signals may be powered off , for another example, the protocol processing unit for processing Bluetooth signals may be powered off. If the bluetooth module is disabled, the bluetooth signal cannot be transmitted through the bluetooth module. Further power savings can be achieved by disabling the Bluetooth module.

In the embodiment of the present application, canceling the disabling of the Bluetooth module can be understood as making a series of components or modules in the wireless communication device that can be used for processing Bluetooth signals to enter a working state. After canceling the disabling of the bluetooth module, the surrounding bluetooth signals can be inquired through the bluetooth module, and after the bluetooth connection is established, the data can be transmitted based on the bluetooth.

(6) Near field communication technology (near field communication, NFC) module.

In this embodiment of the present application, the NFC module may refer to a series of components or modules in a wireless communication device that may be used for signal transmission based on NFC, for example, may include a radio frequency channel for transmitting signals of a frequency band corresponding to NFC, a radio frequency channel for processing NFC signals A protocol processing unit, an antenna for sending and receiving NFC signals, and some modules in the application processing unit for processing NFC signals, etc.

In the embodiment of this application, if the NFC module is disabled, it may be understood that a series of components or modules in the wireless communication device that are used for processing NFC signals are powered off, for example, a radio frequency channel that transmits NFC signals may be powered off , for another example, the protocol processing unit for processing the NFC signal may be powered off. If the NFC module is disabled, NFC signals cannot be transmitted through the NFC module. Disabling the NFC module can further save power.

In the embodiment of the present application, canceling the disabling of the NFC module can be understood as enabling a series of components or modules in the wireless communication device that can be used to process the NFC signal to enter a working state. After the NFC module is disabled, the surrounding NFC signals can be inquired through the NFC module, and after the NFC connection is established, data can be transmitted based on the NFC.

Components of different technologies in the above content may be the same or different. For example, the antenna used for sending and receiving Bluetooth signals may be the same as the antenna used for sending and receiving Wi-Fi signals, which is not specifically limited in this embodiment of the present application.

In this embodiment of the present application, the wireless communication device (for example, the aforementioned terminal device) may have at least one of a rescue function or a search and rescue function. In a possible implementation, a wireless communication device may also have a rescue function and a search and rescue function at the same time. When the user turns on the rescue function of the wireless communication device, the terminal device can be called a rescue device, and when the user turns on the search and rescue function of the wireless communication device, the wireless communication device can be called a rescue device.

A method for turning on and off the SOS function can be set on the wireless communication device, for example, through a mechanical button (also referred to as a hardware switch), or through an icon on the screen of the wireless communication device (also referred to as a software switch). The wireless communication device can also set a method for turning on and off the search and rescue function, for example, through a mechanical button (also referred to as a hardware switch), or through an icon on the screen of the wireless communication device (also referred to as a software switch). Several possible implementations are described below.

In the method a1, the help function is turned on and off through the mechanical button of the wireless communication device.

In this manner, the first operation can be preset, and by performing the first operation on the first mechanical button, the wireless communication device enables the help function in response to the first operation performed on the first mechanical button. In this manner, a second operation may also be preset, and by performing the second operation on the second mechanical button, the wireless communication device disables the help function in response to the second operation performed on the second mechanical button.

The first operation and the second operation may be two different operation modes. For example, the first operation may be to continuously press the first mechanical button for at least a first period of time, and the second operation may be to continuously press the second mechanical button for at least a second period of time. . The first mechanical key and the second mechanical key may be the same key or two different keys, for example, the first mechanical key and the second mechanical key may both be power keys; or, the first mechanical key may be the power key key, and the second mechanical key is the volume key. The first duration and the second duration may or may not be equal.

In the embodiment of the present application, by long-pressing the mechanical button to enable or disable the help-seeking function, it is possible to avoid turning on and off the help-seeking function caused by misoperation. And if the help-seeking function is turned on or off through at least one of the power button or the volume button, the convenience of turning on or off the help-seeking function can be improved, and the difficulty of asking for help can also be reduced.

In FIG. 4a , the wireless communication device is a smartphone as an example, which exemplarily shows a front view and a right side view of a wireless communication device provided by an embodiment of the present application. As shown in FIG. 4 a , on the right side of the wireless communication device 103 The surface may include two keys, which are the volume key 134 and the power key 133 respectively. The volume key 134 can be used to adjust the volume of the wireless communication device. The power key 133 can be used to power on and off the wireless communication device.

FIG. 4b is a schematic diagram of turning on the distress function of the wireless communication device in FIG. 4a according to an embodiment of the application. As shown in FIG. 4b, the first mechanical button and the second mechanical button are both the power button 133, and the first operation and the second operation is to continuously press the power key for at least a first time period. The user can turn on or turn off the help function by performing the operation of "continuously pressing the power key 133 for at least a first time period".

Mode a2, turn on or turn off the help function through the icon on the interface of the wireless communication device.

In this manner, various icons can be preset on the screen of the wireless communication device, and the help-seeking function can be turned on and off by clicking on each icon. The icons in the embodiments of the present application may also be understood as touch keys or software switches. The software switch can be reflected in the quick control panel of the mobile phone device, which can improve the convenience of turning on or off the help function and reduce the difficulty of asking for help.

In a possible implementation manner, a second icon may be set in the wireless communication device, and the help-seeking function may be enabled or disabled by clicking on the second icon. When the distress call function is turned off, when the user clicks on the second icon, the wireless communication device may enable the distress call function in response to the user's click operation on the second icon on the second interface. When the distress call function is on, when the user clicks on the second icon, the wireless communication device may turn off the distress call function in response to the user's click operation on the second icon on the second interface.

In another possible implementation manner, in response to the user's operation of clicking the second icon, the wireless communication device may open a first interface, which may also be referred to as the main interface of the field rescue function. Further, in response to a click operation on the first icon on the first interface, the help-seeking function can be enabled. In another possible implementation manner, in response to a click operation on the first icon of the first interface, a fourth interface is displayed, and information indicating that the help function is enabled is displayed on the fourth interface. In another possible implementation manner, in response to a click operation on the fourth icon of the fourth interface, the help-seeking function is turned off, and the first interface is displayed.

In a possible implementation manner, the second interface may be an interface of the wireless communication device, such as an icon on the main interface. In another possible implementation manner, the second interface may be a shortcut control interface of the wireless communication device (or may also be referred to as a shortcut control center, a shortcut control panel, a control center, etc.). In a possible implementation manner, the user may be in a preset top area of the third interface (for example, the third interface may be the main interface of the wireless communication device) (for example, it may be the top 1/5 area of the third interface of the wireless communication device). The pull-down operation performed at ), in response to the pull-down operation performed by the user on the preset top area of the third interface, the wireless communication device displays the second interface. A second icon is displayed on the second interface.

In FIG. 5 , the wireless communication device is a smartphone as an example, which exemplarily shows a schematic interface diagram of a wireless communication device provided by an embodiment of the present application. In FIG. 5 (a), an icon 136 is shown, and the icon 136 may be Used to indicate that the wireless communication device is not currently within the coverage of the cellular network. It should be noted that FIG. 5 only shows a possible situation, and the wireless communication device 103 in FIG. 5 may also be within the coverage of the cellular network, which is not limited in this embodiment of the present application.

As shown in (a) of FIG. 5 , operation 135 can be performed on the unlocking interface of the wireless communication device 103 (the interface may refer to the interface after the wireless communication device is unlocked, and the interface may be the third interface), and operation 135 refers to The finger slides down from the top of the screen of the wireless communication device, and in response to the downward sliding operation, the wireless communication device can display the interface shown in (b) in FIG. 5 (the interface can be the aforementioned second interface), the second interface The second icon on the interface is the icon 137 of field rescue. The second interface may further include at least one of the following icons:

Wireless network icon, the icon used to turn on or off the wireless high-fidelity Wi-Fi function;

Bluetooth icon, the icon for the user to turn on or off the Bluetooth function;

Torch icon, an icon to turn the torch function on or off;

The bell icon, the icon used to turn the bell mode on or off;

Auto-rotate icon, which is used to turn on or off the icon of the screen's automatic selection function;

Airplane Mode Icon, an icon to turn Airplane Mode on or off;

Mobile data icon, an icon to turn mobile data on or off;

Location information icon, an icon used to turn the location function on or off;

Screenshot icon, an icon used to turn the screen capture function on or off;

Eye protection mode icon, which is used to turn the eye protection mode on or off;

Hotspot icon, an icon used to turn on or off the personal hotspot function;

Screen recording icon, the icon used to turn the screen recording function on or off;

An icon for turning on or off the wireless screencasting function;

Huawei share icon, the icon used to turn the sharing function on or off;

NFC icon, the icon used to turn on or off the NFC function of short-range wireless communication technology;

Super power saving icon to turn super power saving mode on or off; or,

Do Not Disturb icon to turn Do Not Disturb mode on or off.

It should be understood that these icons displayed in (b) of FIG. 5 may be more or less, and the names of these icons are not limited.

As shown in (b) of FIG. 5 , the pull-down menu includes an icon 137 of field rescue, and the user can click on the icon to open the main interface of the field rescue function (this interface may be the first interface), and the main interface of the field rescue function can be opened. The interface is shown in (c) of Figure 5 .

As shown in (c) of FIG. 5 , the main interface of the field rescue function includes an icon 138 of the rescue function (the icon may be the first icon), and an icon 139 of the search and rescue function (the icon may be the third icon). The user can turn on the help mode by clicking the icon 138 of the help function. The interface of the wireless communication device after turning on the distress mode may be as shown in (d) of FIG. 5 , the interface may be the fourth interface, and the icon 1381 may be the fourth icon. When the wireless communication device turns on the distress function, the wireless communication device can send a message to the outside world, so that the user can be rescued in time. How to execute the rescue plan after the wireless communication device turns on the distress mode will be introduced in detail later, which will not be explained here. . As shown in (d) of FIG. 5 , the interface may also include an icon 1381 for turning off the help function. When the user clicks the icon 1381 for turning off the SOS function, the SOS function can be turned off, and the schematic interface diagram of the wireless communication device after turning off the SOS function can be shown in (c) in FIG.

Mode a3, the search and rescue function is turned on and off through the mechanical button of the wireless communication device.

The search and rescue function is turned on and off in a similar way. For example, the search and rescue function can be turned on by the third mechanical button, and the search and rescue function can be turned off by the fourth mechanical button. The solution of turning on or turning off the search and rescue function through the mechanical button is similar to the above solution a1, and will not be repeated here.

In the method a4, the search and rescue function is turned on or off through the icon on the interface of the wireless communication device.

FIG. 6 exemplarily shows a schematic interface diagram of a wireless communication device provided by an embodiment of the present application. (a) in FIG. 6 is the same as (a) in FIG. 5 , and (b) in FIG. 6 is the same as that in FIG. 5 . The same as in (b) of FIG. 6 , after the user performs related operations to open the interface of (c) in FIG. 6 , the user clicks the icon 139 of the search and rescue function in the interface shown in (c) of FIG. 6 to start the search and rescue mode. The interface of the wireless communication device after the search and rescue mode is turned on may be as shown in (d) of FIG. 6 . When the wireless communication device turns on the search and rescue function, the wireless communication device can receive the message sent by the rescue equipment, so as to find the rescue user in time. How to execute the search and rescue plan after the wireless communication device turns on the search and rescue mode will be introduced in detail later. do elaboration. As shown in (d) of FIG. 6 , an icon 1391 for closing the search and rescue function may also be included on the interface. When the user clicks the icon 1391 for turning off the search and rescue function, the search and rescue function can be turned off. After the search and rescue function is turned off, the interface schematic diagram of the wireless communication device can be shown in (c) of FIG.

The above solutions can be used in combination, for example, the field rescue function can be activated through the mechanical button, for example, by long pressing the power button, the interface (c) in the above Figure 5 can be opened, and the search and rescue function can be opened by clicking the icon 139 of the search and rescue function. Function. Other combinations are also included, which are not described one by one in the embodiments of the present application.

Method a5, open the field rescue function through the mechanical button method or the icon on the interface.

In this embodiment of the present application, the field rescue function may include a rescue function and a search and rescue function. In a possible implementation, the field rescue function can be turned on through a mechanical button or an icon, and the interface (which can be the first interface) after the field rescue function is turned on can be as shown in (c) of FIG. 5 . For example, the wireless communication device displays the first interface in response to the user pressing the first mechanical button for a duration of not less than the first duration, and may further enable the help function in response to the click operation on the first icon of the first interface.

In another possible implementation, the initial mode of the field rescue can be set to the rescue mode. In this case, when the field rescue function is turned on through the mechanical button, the rescue mode can be directly turned on. For example, by long pressing the power button, the Turn on the SOS function and send the first SOS message through C-V2X. Further, the interface of (d) in the above-mentioned FIG. 5 can be opened, so that the interface of (d) in the above-mentioned FIG. 5 can be opened directly through the mechanical button, without going through the interface of (c) in the above-mentioned FIG. 5, which can be convenient for help.

Or when the icon 137 of field rescue is clicked in (b) of FIG. 5 , the rescue function can be directly enabled, and the first rescue message can be sent through C-V2X. Further, when clicking the icon 137 of field rescue in (b) in Fig. 5, the interface of (d) in the above-mentioned Fig. 5 can be directly opened, without going through the interface in the (c) in the above-mentioned Fig. 5, it is convenient ask for help.

If you need to switch to the search and rescue mode, you can turn off the rescue mode in the interface of (d) in FIG. 5 , and then switch the terminal device to the search and rescue mode by clicking the icon on the screen of the terminal device, that is, change the terminal device to Search and rescue terminal.

Based on the above content, FIG. 7 exemplarily shows a schematic flowchart of a rescue method applicable to a wireless communication device provided by an embodiment of the present application. The method may be executed by the above-mentioned terminal device or a component or chip placed inside the terminal device, It can also be executed by a processing module inside the wireless communication device. For example, the processing module can be a processing module or unit in the processor or the processor in the above-mentioned FIG. 2, or can also be a module in the application processing unit 31 in the above-mentioned FIG. 3b. unit.

As shown in Figure 7, the method includes:

S701 , enabling a rescue function of the wireless communication device.

The method for enabling the SOS function is the same as before, and will not be repeated here.

S702: After enabling the rescue function, record first disabling state information of at least one first module, where the first disabling state information is used to indicate whether the first module is disabled before enabling the rescue function. The first module includes a high power consumption module in the wireless communication device. Record second disabling state information of at least one second module, where the second disabling state information is used to indicate whether the second module is disabled before enabling the help function. The second module includes: a positioning module, a cellular network module and a C-V2X module.

The first module defined in the embodiments of the present application may include a high power consumption module in a wireless communication device, for example, the first module includes at least one of the following: an NFC module, a Wi-Fi module, or a Bluetooth module. The first module may also include other modules that consume more power in the wireless communication device, not all of which are listed here.

S703, in the case that the first disabling state information indicates that the first module is not disabled before enabling the help function, disable the first module.

Since the wireless communication device may be powered by a battery when a person is trapped, and the rescue time is uncertain, in this case, it is particularly important to save power as much as possible so as to buy more time for the user. By disabling the first module through S703, the power can be saved as much as possible.

S704, an emergency call is attempted through the second radio frequency channel. Is the call successful? The second radio frequency channel is used to transmit signals in the frequency band corresponding to the cellular network.

If the call is successful, execute S705;

If the call fails, execute S706 and S707.

In S704, an emergency call can be made through the cellular network module. In this case, if the cellular network module is disabled, the disablement needs to be canceled first, and then the emergency call can be made through the cellular network module.

S705, play the pre-stored distress recording.

When the call is successful in S704, the user can directly talk to the callee. However, in some cases, the user may not be able to speak, such as being injured or weak. In this case, if the caller does not make a call within the preset time period If the sound is heard, it is determined that the user cannot communicate verbally with people due to being trapped. At this time, the S705 can be used to play the distress recording. In a possible implementation, the distress recording can be preset by the user, and can also be updated. For example, when the user arrives at a new expedition place, the current time, the starting location, the direction to be moved forward, and the planned target can be recorded. The location, etc., enter the distress recording, so that the user can be searched and rescued more quickly in the later stage.

S706, disable the cellular network of the wireless communication device.

Through S706, since the cellular network module is disabled, the wireless communication device does not search for nearby network signals, so that the power of the wireless communication device can be saved.

S707. Send the first message through the first radio frequency channel. The first radio frequency channel is used to transmit signals in the frequency band corresponding to the C-V2X.

In this embodiment of the present application, the first message needs to be sent through the C-V2X module. If the C-V2X module is disabled, in S707 the disablement of the C-V2X needs to be canceled first, and then the first message is sent.

In this embodiment of the present application, the first message may be a first distress message. Since the signal coverage of the first message is relatively fixed, when the rescuer carries the search and rescue equipment to receive the first message, even if the first message does not contain the location information of the wireless communication device, the approximate location of the rescue equipment can be determined. This can then narrow the scope of search and rescue.

In this embodiment of the present application, the first message may be a preset message. The first message may include at least one of the following contents b1 to b4:

The content b1 is used to indicate that the first message is the indication information of the first distress message. It can be the Application ID of the field rescue APP. According to the indication information, the search and rescue device can identify the first message as a distress message.

The content b2, the current location information of the wireless communication device, is referred to as the first location information in this embodiment of the present application for distinction. The location information may include information such as longitude, latitude, and altitude of the location where the rescue equipment is located.

Content b3, the user identification information of the rescuer. For example, it can be the user's name, ID number, etc.;

Content b4, the generation time of the first message.

In S707, in order to further reduce power consumption, the number of times of sending the first message is at least one of the following: a preset value; or, is positively related to the power of the wireless communication device. For example, if the power of the wireless communication device is relatively high, the number of times of sending the first message can be increased, so that the chance of rescue can be increased. On the contrary, if the power of the wireless communication device is low, the number of times of sending the first message can be reduced, the standby time of the wireless communication device can be prolonged, and the chance of rescue can be increased.

In S707, in order to further reduce power consumption, the wireless communication device may send the first message through the first radio frequency channel based on the Pedestrian-to-Everything (P2X) mode related to the C-V2X sidelink communication.

In the embodiment of the present application, when the first message is sent based on the P2X mode related to C-V2X sidelink communication, it can be:

Based on a random selection mode or a partial Sensing mode, a resource for transmitting the first message is selected from a preconfigured resource pool.

For English, please refer to the following: Transmission of P2X related C-V2X sidelink communication, A UE configured to transmit P2X related C-V2X sidelink communication shall:

If both partialSensing and randomSelection is included in resourceSelectionConfigP2X of the pool selected, the selection between partial sensing and random selection is left to UE implementation.

In a possible implementation manner, when a resource for transmitting the first message is selected from a preconfigured resource pool based on a random selection mode, the first radio frequency channel of the wireless communication device is enabled. The first radio frequency receiving channel is powered off.

In a possible implementation manner, when a resource for transmitting the first message is selected from a pre-configured resource pool based on a partial Sensing mode, the first radio frequency channel of the wireless communication device is enabled. The first radio frequency receiving channel is intermittently powered off. Intermittently being in the power-off state means that the first RF receiving channel is switched between power-on and power-off, wherein the power-on duration and the power-off duration may be equal or unequal, for example, power-off 900 milliseconds (ms) minutes, Power on for 100ms. Alternatively, the two power-on periods are not equal. For example, when the power of the wireless communication device is low, the power-on period may be shorter, and in any case, may be longer.

In a possible implementation manner, when a resource for transmitting the first message is selected from a preconfigured resource pool based on a partial Sensing mode: receiving the first message through the first radio frequency in the first radio frequency channel The channel receives a signal of a third duration, and selects a resource for transmitting the first message from a preconfigured resource pool according to the signal received within the third duration. The third duration is less than the fourth duration, and the fourth duration is the duration of the received signal when the resource for transmitting the first message is selected from the preconfigured resource pool in the Sensing mode.

S708, after sending the first message for a preset number of times through the first radio frequency channel, enter a sleep state, and set a sleep duration.

It should be noted that the first message can be sent multiple times, and can be sent at certain intervals, for example, the first message can be sent at an interval of 1 minute, until the preset number of first messages are sent, you can enter through S708. sleep state. The sleep duration can be set by the sleep-wake timer.

In S708, the sleep duration is at least one of the following: a preset value; or, inversely related to the power of the wireless communication device. When the power of the wireless communication device is high, the sleep time is shorter to increase the chance of rescue. When the power of the device is low, the sleep time is longer to save power consumption, prolong the rescue time, and also increase the chance of rescue.

In the embodiment of the present application, after the wireless communication device enters the sleep state, the corresponding C-V2X module and the positioning module are in the power-off state to save power consumption.

S709, determine whether the sleep duration is reached?

If not reached, repeat S709;

If it is reached, execute S710;

S710: Acquire second location information of the wireless communication device.

In S710, since the current location information of the wireless communication device needs to be acquired through the positioning module, when the positioning module is powered off, it is necessary to power on the positioning module first, or cancel the disabling of the positioning module. In this embodiment of the present application, the wireless communication device in S710 obtains the current location information, which is referred to as second location information here in order to distinguish it from the first location information in the foregoing content.

S711: Determine whether the distance between the two positions indicated by the first position information and the second position information is greater than a preset distance threshold?

If it is greater than, execute S704;

If not greater than, execute S707.

It can be seen from S711 that only when the distance between the two locations indicated by the first location information and the second location information is greater than the preset distance threshold, it is possible to move to the network signal coverage area, so the Cancelling the disabling of the cellular network of the wireless communication device, and attempting an emergency call based on the cellular network, adding an emergency call step in the rescue process can improve the rescue success rate. However, when the distance between the two locations is not greater than the preset distance threshold, the disabling of the cellular network will not be canceled, which can further reduce power consumption.

It can be seen from the solution in FIG. 7 that in the embodiment of the present application, if the distress mode is enabled, emergency calls can be made or messages can be sent periodically through C-V2X, thereby increasing the probability of being rescued, and the need to be disabled as much as possible is disabled in the process. module, which can further reduce the power.

It should be noted that, in the embodiment of the present application, after the emergency call function of the wireless communication device is enabled, it is not necessary to make an emergency call based on the cellular network. For example, some wireless communication devices do not have a cellular network module. The aforementioned S704 to S706, and S711 are removed. And S707 is executed after S710.

In the embodiment of the present application, if after the first aid module is turned on, if it is detected that the user exits the aid mode, in a possible implementation manner, the state of the first module may be restored to be turned on according to the first disabled state information of the first module in the aforementioned S702 Before the SOS function. According to the second disabling state information of the second module in the foregoing S702, the state of the second module is restored to the state before the rescue function is enabled. For example, if the first disabling state information indicates that the first module is not disabled before turning on the rescue function, after exiting the rescue mode, if the first module is in the disabled state, the disabling of the first module is canceled.

Based on the above content, FIG. 8 exemplarily shows a schematic flowchart of a rescue method applicable to a wireless communication device provided by an embodiment of the present application.

As shown in Figure 8, the method includes:

S801, enable the search and rescue function.

S802 , after enabling the rescue function, record third disabling state information of the third module, where the third disabling state information is used to indicate whether the third module is disabled before enabling the search and rescue function. The third module includes at least one of a positioning module or C-V2X.

S803, based on enabling the C-V2X module, receive a signal in a frequency band corresponding to the C-V2X through the first radio frequency channel. And after determining the received distress message (for the sake of distinction, the distress message may be referred to as the second distress message here), the location information of the rescuer is displayed on the wireless communication device.

In a possible implementation manner, after receiving the signal in the frequency band corresponding to C-V2X through the first radio frequency channel in S803, it can be parsed. If the signal is parsed to indicate that the signal includes the distress message , then it is determined that the signal includes a distress message, and further, the location information of the rescuer is determined according to the message. In a possible implementation manner, it may be determined according to the location information carried in the received message, and in another possible implementation manner, if the received message does not carry the location information, it may be determined according to the signal strength of the received message. Determine the approximate area where the rescuer is located, which can speed up the search and rescue.

In yet another possible implementation, indication information for indicating that the signal includes a distress message may be placed in the header of the message (such as the header of the second distress message), so that when the signal is parsed out, the When the information is indicated, continue to parse the subsequent content. If the indication information is not parsed, the subsequent content will not be parsed, and the message can be discarded. In this way, the data volume of the message processed by the search and rescue device can be reduced.

Before S803, synchronization may be performed based on the enabled positioning module. If the positioning module is not enabled, the positioning module needs to be enabled, and then synchronization is performed based on the enabled positioning module.

In the embodiment of the present application, if after the search and rescue module is enabled, if it is detected that the user exits the search and rescue mode, in a possible implementation manner, the state of the third module may be restored to open according to the third disabled state information of the third module in the aforementioned S802 Before the search and rescue function. For example, if the third disabling state information indicates that the third module is disabled before the search and rescue function is enabled, after exiting the search and rescue mode, if the third module is in an undisabled state, disabling the third module is disabled. For another example, if the third disabling state information indicates that the third module is not disabled before the search and rescue function is enabled, after exiting the search and rescue mode, if the third module is in the disabled state, the disabling of the third module is canceled.

The terms "system" and "network" in the embodiments of the present application may be used interchangeably. "At least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c may be single or multiple .

And, 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, sequence, priority or importance of multiple objects degree. For example, the first radio frequency receiving channel and the second radio frequency receiving channel are only for distinguishing different radio frequency receiving channels, but do not indicate the difference in priority or importance of the two radio frequency receiving channels.

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

According to the method provided by the embodiment of the present application, the present application also provides a computer program product, the computer program product includes: computer program code, when the computer program code is run on a computer, the computer is made to execute the steps shown in FIGS. 7 to 8 . The method of any one of the illustrated embodiments.

According to the methods provided by the embodiments of the present application, the present application further provides a computer-readable storage medium, where the computer-readable medium stores program codes, and when the program codes are run on a computer, the computer is made to execute FIGS. 7 to 8 . The method of any one of the illustrated embodiments.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in 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 computer instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.) means to transmit to another website site, computer, server or data center. A computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, high-density digital video disc (DVD)), or semiconductor media (eg, solid state disc (SSD)) )Wait.

The network equipment in the above apparatus embodiments corresponds to the network equipment in the method embodiments, and corresponding steps are performed by corresponding modules or units. Steps other than receiving may be performed by a processing unit (processor). For functions of specific units, reference may be made to corresponding method embodiments. The number of processors may be one or more.

The terms "component", "module", "system" and the like are used in this specification to refer to a computer-related entity, hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component may be, but is not limited to, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device may be components. One or more components may reside within a process and/or thread of execution, and a component may be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. A component may, for example, be based on a signal having one or more data packets (eg, 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 via signals) Communicate through local and/or remote processes.

Those of ordinary skill in the art will appreciate that the various illustrative logical blocks and steps described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware accomplish. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

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

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 alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods 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), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and should cover within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A wireless communication device, comprising a first radio frequency channel, a second radio frequency channel and a processing module, the processing module is coupled to the first radio frequency channel, and the processing module is coupled to the second radio frequency channel:

The first radio frequency channel is used to transmit messages in the frequency band corresponding to C-V2X based on the cellular Internet of Vehicles;

The second radio frequency channel is used to transmit messages in the frequency band corresponding to the cellular network;

The processing module is used for:

After enabling the distress function of the wireless communication device, a preset first distress message is sent through the first radio frequency channel, and the first distress message is a message in a frequency band corresponding to C-V2X.
The wireless communication device according to claim 1, wherein the first processing module is specifically configured to:

In response to the user's operation of pressing the first mechanical button for a duration not less than the first duration, the help-seeking function is enabled.
The wireless communication device according to claim 1, wherein the first processing module is specifically configured to:

Displaying a first interface in response to an operation that the user presses the first mechanical button for a duration not less than the first duration;

In response to a click operation on the first icon of the first interface, the help-seeking function is enabled.
The wireless communication device according to claim 2 or 3, wherein the first mechanical key is a power key or a volume control key.
The wireless communication device according to claim 1, wherein the first processing module is specifically configured to:

In response to the user's click operation on the second icon of the second interface, the help-seeking function is enabled.
The wireless communication device according to claim 5, wherein the first processing module is further configured to:

The second interface is displayed in response to a pull-down operation performed by the user on a preset top area of the third interface.
The wireless communication device according to claim 5 or 6, wherein the second interface further comprises at least one of the following icons:

An icon for turning on or off the wireless high-fidelity Wi-Fi function;

The icon for the user to turn on or off the Bluetooth function;

an icon to turn the flashlight function on or off;

an icon to switch ring mode on or off;

An icon for turning on or off the automatic selection of the screen;

An icon to turn Airplane Mode on or off;

Icons for turning mobile data on or off;

an icon to turn the location function on or off;

an icon to turn the screenshot function on or off;

An icon to turn on or off the eye protection mode;

Icons for turning on or off the Personal Hotspot feature;

an icon to turn the screen recording function on or off;

An icon for turning on or off the wireless screencasting function;

an icon to turn sharing on or off; or,

Icon used to turn on or off the Near Field Communication Technology NFC function.
The wireless communication device according to any one of claims 1-7, wherein the first distress message further comprises at least one of the following:

User identification information of the caller;

the generation time of the first distress message;

Indication information used to indicate that the first distress message is a distress message; or,

The first distress message includes first location information where the wireless communication device is located when the first distress message is sent.
The wireless communication device according to any one of claims 1-8, wherein the first processing module is specifically configured to:

After enabling the SOS function, selecting a resource for transmitting the first SOS message from a preconfigured resource pool based on a random selection mode or a partial Sensing mode;

According to the selected resource for transmitting the first distress message, the first distress message is sent through the first radio frequency channel based on the pedestrian outreach P2X mode related to C-V2X sidelink communication.
The wireless communication device according to claim 9, wherein the first processing module is further configured to:

When a resource for transmitting the first distress message is selected from a preconfigured resource pool based on a random selection mode, make the first radio frequency channel of the wireless communication device An RF receive channel is powered down; or,

When the resource for transmitting the first distress message is selected from the preconfigured resource pool based on the partial Sensing mode, enable the first radio frequency channel of the wireless communication device to An RF receive channel is intermittently powered down.
The wireless communication device according to any one of claims 1-10, wherein the first processing module is further configured to:

After enabling the distress function of the wireless communication device and before sending the first distress message through the first radio frequency channel: try an emergency call through the second radio frequency channel.
The wireless communication device according to claim 11, wherein the first processing module is further configured to:

In the event that the emergency call fails, the cellular network of the wireless communication device is disabled.
The wireless communication device according to any one of claims 1-12, wherein the first processing module is further configured to:

After enabling the distress function of the wireless communication device, record first disabling state information of the first module, where the first disabling state information is used to indicate whether the first module is disabled before enabling the distress function;

The first module is disabled if the first disabled state information indicates that the first module is not disabled before the SOS function is turned on.
The wireless communication device according to any one of claims 1-13, wherein the first processing module is further configured to:

After sending the preset first distress message through the first radio frequency channel: enter the sleep state.
The wireless communication device of claim 14, wherein the first processing module is further configured to:

When the duration of the sleep state reaches a preset sleep duration, acquiring the second location information of the wireless communication device;

When the distance between the location where the wireless communication device is located and the location indicated by the second location information when the first distress message is sent is greater than a preset distance threshold:

The disabling of the cellular network of the wireless communication device is cancelled, and an emergency call is attempted based on the cellular network.
The wireless communication device according to any one of claims 1-15, wherein the processing module is further configured to:

After the search and rescue function of the wireless communication device is turned on, a second distress message is received through the first radio frequency channel, and the second distress message is a message in a frequency band corresponding to C-V2X.
The wireless communication device according to claim 16, wherein the processing module is specifically configured to:

Displaying the first interface in response to the operation that the user presses the first mechanical button for a duration not less than the first duration;

In response to a click operation on the third icon of the first interface, the search and rescue function is enabled.
The wireless communication device according to claim 16, wherein the processing module is specifically configured to:

Displaying a first interface in response to an operation that the user presses the first mechanical button for a duration not less than the first duration;

In response to the click operation on the first icon of the first interface, a fourth interface is displayed, and the fourth interface displays information indicating that the help function has been turned on;

In response to the click operation on the fourth icon of the fourth interface, the help-seeking function is turned off, and the first interface is displayed;

In response to a click operation on the third icon of the first interface, the search and rescue function is enabled.
The wireless communication device according to any one of claims 16-18, wherein the processing module is further configured to:

After receiving the second distress message: after parsing out the indication information in the second distress message that indicates that the second distress message is a distress message, the interface of the wireless communication device displays the sending of the The location information of the wireless communication device of the second distress message.
The wireless communication device according to any one of claims 1-19, wherein the wireless communication device is a smart phone.
A rescue method, characterized in that it is suitable for a wireless communication device comprising a first radio frequency channel, a second radio frequency channel and a processing module, the processing module and the first radio frequency channel are coupled, and the processing module and the first radio frequency channel are coupled. Two radio frequency channels are coupled; the first radio frequency channel is used to transmit messages in the frequency band corresponding to the C-V2X based cellular network of vehicles; the second radio frequency channel is used to transmit messages in the frequency band corresponding to the cellular network; the method includes:

After enabling the distress function of the method, a preset first distress message is sent through the first radio frequency channel, where the first distress message is a message in a frequency band corresponding to C-V2X.
The method according to claim 21, wherein after enabling the help function of the method, sending a preset first help message through the first radio frequency channel, comprising:

After enabling the SOS function, selecting a resource for transmitting the first SOS message from a preconfigured resource pool based on a random selection mode or a partial Sensing mode;

According to the selected resource for transmitting the first distress message, the first distress message is sent through the first radio frequency channel based on the pedestrian outreach P2X mode related to C-V2X sidelink communication.
The method according to claim 21 or 22, characterized in that, after the SOS function is enabled, before the sending the first SOS message through the first radio frequency channel, the method further comprises:

attempt an emergency call through the second radio frequency channel;

In the event that the emergency call fails, the cellular network is disabled.
The method according to any one of claims 21-23, wherein after sending the preset first distress message through the first radio frequency channel, the method further comprises:

enter sleep state;

When the duration of the sleep state reaches a preset sleep duration, acquiring the second location information of the wireless communication device;

When the distance between the location where the wireless communication device is located and the location indicated by the second location information when the first distress message is sent is greater than a preset distance threshold:

The disabling of the cellular network of the wireless communication device is cancelled, and an emergency call is attempted based on the cellular network.
The method according to any one of claims 21-24, wherein the method further comprises:

After the search and rescue function is turned on, a second distress message is received through the first radio frequency channel, and the second distress message is a message in a frequency band corresponding to the C-V2X.
A communication device, comprising:

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 of any one of claims 21-25.
A communication device, comprising:

processors and interface circuits;

Wherein, the interface circuit is used to access a memory, and the memory stores program instructions;

The processor is configured to access the memory through the interface circuit, and execute program instructions stored in the memory, so as to implement the method of any one of claims 21-25.
A computer-readable storage medium, characterized in that a program code is stored in the computer-readable storage medium, and when the program code is executed by a computer, the method according to any one of claims 21-25 is implemented .
A chip system, characterized by comprising a communication interface and a processor, wherein the communication interface is used for inputting and/or outputting information; when the processor is running, the processor described in any one of claims 21-25 is enabled. method is executed.
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 21-25 is implemented.