Communication method and related apparatus

Abstract

Provided in the present application are a communication method and a related apparatus, which are applied to the technical field of communications. When a line-of-sight path between a first device and an anchor point in a vehicle is shielded by a vehicle body, the precision of a measurement result of the anchor point is low, thus affecting the accuracy of final contactless short-range unlocking and long-range locking. In order to effectively ensure the precision of a measurement result of an anchor point, in the present application, a first anchor point which is selected from among a plurality of anchor points in the vehicle by the first device and has an unshielded line-of-sight path with the first device can be used as a main anchor point for measurement, so as to improve the precision of the measurement result of the anchor point, thus ensuring the effective utilization of resources and providing early-stage convenience for the final realization of high-quality unlocking and locking functions.

Description

Communication method and related apparatus

[0001] This application claims priority from the Chinese patent application No. 202410216908.X filed on February 27, 2024, and entitled "Communication method and related apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of communication technology, in particular to a communication method and related apparatus. BACKGROUND

[0003] With the continuous development of vehicle intelligence and automation, the devices matched with the vehicles gradually break out of the original physical form and feature digitalization to bring greater convenience to users. For example, the intelligent vehicle key matched with the vehicle becomes a development trend of future vehicle opening and closing. In order to realize the non-inductive opening and closing of the vehicle, first, an anchor point needs to be deployed on the vehicle body, and the anchor point and the vehicle key can perform wireless communication measurement. Then, the distance between the vehicle key and the vehicle is judged according to the measurement value, and finally, the non-inductive opening and closing are realized in the near distance.

[0004] However, since most of the vehicle body shell is metal material, the body shielding will affect the measurement quality of the signal between the vehicle key and the vehicle, and further affect the measurement accuracy. In some schemes, all anchor points are measured, but this will result in low accuracy of the measurement result, and since the measurement result of the anchor point shielded by the vehicle body has large error, in this scheme, energy is still consumed for measurement, resulting in waste of air interface resources.

[0005] Therefore, how to improve the accuracy of the measurement result of the anchor point and ensure the effective use of resources is a hot spot being studied by those skilled in the art. SUMMARY

[0006] Embodiments of the present application provide a communication method and related apparatus, which can improve the accuracy of the measurement result of the anchor point and ensure the effective use of resources.

[0007] In a first aspect, embodiments of the present application provide a communication method, which comprises: performing measurement on a plurality of anchor points in a vehicle at an initial frequency to obtain first measurement information, determining a first anchor point in the plurality of anchor points whose direct view diameter with a first device is not shielded according to the first measurement information, and performing measurement on the first anchor point to obtain second measurement information.

[0008] The second measurement information is used to indicate the relative position between the vehicle and the first device.

[0009] Generally, when the direct diameter between the first device and the anchor point in the vehicle is blocked by the vehicle body, the measurement accuracy of the anchor point is low, which affects the accuracy of the final implementation of the opening and closing of the lock. In this application, the first device can screen the first anchor point from the multiple anchor points whose direct diameter with the first device is not blocked, and take the first anchor point as the main anchor point for measurement to improve the measurement accuracy of the anchor point, ensure the effective use of resources, and provide early convenience for the final implementation of the high-quality opening and closing function.

[0010] In a possible implementation of the first aspect, the first device is a key, and the key is a key pre-bound with the vehicle.

[0011] In another possible implementation of the first aspect, the measurement with the first anchor point obtains second measurement information, including: measuring with the first anchor point at a first frequency to obtain the second measurement information. The method further includes: measuring with a second anchor point at a second frequency to obtain third measurement information. The second anchor point is an anchor point in the multiple anchor points other than the first anchor point.

[0012] Optionally, the first frequency is greater than or equal to an initial frequency, the first frequency is greater than the second frequency, and the initial frequency is greater than the second frequency.

[0013] In the above implementation, the second anchor point (i.e., the anchor point that does not need to be measured) can be measured at a low frequency, and the first anchor point (i.e., the anchor point that needs to be measured) can be measured at a high frequency. In this way, the waste of resources can be reduced, and the effective use of resources can be further achieved.

[0014] In another possible implementation of the first aspect, the method further includes: not measuring with a second anchor point, the second anchor point being an anchor point in the multiple anchor points other than the first anchor point.

[0015] In the above implementation, the second anchor point with low measurement accuracy can not be measured, thereby reducing the waste of resources.

[0016] In another possible implementation of the first aspect, the first anchor point in the multiple anchor points whose direct diameter with the first device is not blocked is determined according to the first measurement information, including: determining a first index according to the first measurement information, and in a case where the first index is less than a first threshold, the first anchor point in the multiple anchor points whose direct diameter with the first device is not blocked. The first index is positively correlated with the degree to which the direct diameter of the first anchor point in the multiple anchor points with the first device is blocked.

[0017] Optionally, the first threshold can be pre-defined, or set by a user or calculated.

[0018] In the above-mentioned embodiments, the result that the first anchor point of the plurality of anchor points output by the first device is not blocked by the direct view diameter of the first device can be determined by the degree value of the index. In this way, the anchor point that needs to be primarily measured can be screened out. In this scheme, the first index can be positively correlated with the degree to which the first anchor point of the plurality of anchor points is blocked by the direct view diameter of the first device.

[0019] In a further possible implementation form of the first aspect, determining, according to the first measurement information, the first anchor point of the plurality of anchor points that is not blocked by the direct view diameter of the first device comprises: determining a first index according to the first measurement information, and in a case where the first index is greater than a first threshold value, the first anchor point of the plurality of anchor points is not blocked by the direct view diameter of the first device. The first index can be negatively correlated with the degree to which the first anchor point of the plurality of anchor points is blocked by the direct view diameter of the first device.

[0020] In the above-mentioned embodiments, the result that the first anchor point of the plurality of anchor points output by the first device is not blocked by the direct view diameter of the first device can be determined by the degree value of the index. In this way, the anchor point that needs to be primarily measured can be screened out. In this scheme, the first index can be negatively correlated with the degree to which the first anchor point of the plurality of anchor points is blocked by the direct view diameter of the first device.

[0021] In a further possible implementation form of the first aspect, determining, according to the first measurement information, the first anchor point of the plurality of anchor points that is not blocked by the direct view diameter of the first device comprises: calculating the position of the first device relative to the plurality of anchor points according to the first measurement information. Determining the first anchor point of the plurality of anchor points that is not blocked by the direct view diameter of the first device according to the position of the first device relative to the plurality of anchor points and the structure of the vehicle.

[0022] In the above-mentioned embodiments, the result that the first anchor point of the plurality of anchor points output by the first device is not blocked by the direct view diameter of the first device can be determined according to the position of the first device relative to the plurality of anchor points and the structure of the vehicle. In this way, the anchor point that needs to be primarily measured can be screened out.

[0023] In a further possible implementation form of the first aspect, determining, according to the first measurement information, the first anchor point of the plurality of anchor points that is not blocked by the direct view diameter of the first device comprises: sorting the first measurement information to obtain the anchor point of the plurality of anchor points whose ranging value of the distance between the first device is less than a second threshold value. The anchor point of the plurality of anchor points whose ranging value of the distance between the first device is less than the second threshold value is taken as the first anchor point of the plurality of anchor points that is not blocked by the direct view diameter of the first device.

[0024] In the above embodiment, the first anchor point in the plurality of anchor points output by the first device and the result that the direct diameter between the first device and the first anchor point is not blocked can be determined according to a comparison result of a ranging value between the first device and the first anchor point in the plurality of anchor points and a second threshold. In this way, the anchor point that needs to be measured mainly can be screened out.

[0025] In a further possible implementation manner of the first aspect, the method further includes: performing measurement with the first anchor point again to obtain fourth measurement information, the second measurement information and the fourth measurement information being measurement information at different times. Based on the second measurement information and the fourth measurement information, a third anchor point in the plurality of anchor points is determined, the third anchor point including an anchor point that is predicted to have a direct diameter between the first device that is not blocked. Measurement is performed with the third anchor point to obtain fifth measurement information, the fifth measurement information being used to indicate a relative position between the first device and the first anchor point.

[0026] In the above embodiment, as the relative position between the first device and the vehicle changes, the anchor point that needs to be measured mainly is adaptively updated to select a more suitable anchor point to perform measurement with the first device. In this way, the measurement of the anchor point is more targeted. By dynamically updating the anchor point, the measurement of the anchor point is also more flexible.

[0027] In a further possible implementation manner of the first aspect, the measurement information includes one or more of the following: a ranging value, a signal strength, an angle, a position.

[0028] In a second aspect, an embodiment of the present application provides a communication apparatus, which includes modules or units for implementing the method described in the second aspect or any possible implementation manner of the second aspect.

[0029] In a third aspect, an embodiment of the present application provides a communication apparatus, which includes at least one processor and a communication interface; the communication interface is used to input and / or output information, and the at least one processor is used to call a computer program stored in at least one memory to implement the method described in the foregoing first aspect or any possible implementation manner of the first aspect.

[0030] In a fourth aspect, an embodiment of the present application provides a communication apparatus, which includes at least one processor and a communication interface; the communication interface is used to input and / or output information, and the at least one processor is used to call a computer program stored in at least one memory to implement the method described in the foregoing second aspect or any possible implementation manner of the second aspect.

[0031] In a fifth aspect, an embodiment of the present application provides a chip, which includes the modules or units of the method described in any one of the foregoing first aspect to the second aspect. The modules can be software modules or hardware modules.

[0032] In a sixth aspect, an embodiment of the present application provides a communication system, the communication system comprising a terminal and a network device, and the terminal and the network device are communicatively connected. The terminal is configured to implement the method of any one of the first aspect, or is configured to implement the method of any one of the second aspect. The network device is configured to implement the method of any one of the first aspect, or is configured to implement the method of any one of the second aspect.

[0033] In a seventh aspect, an embodiment of the present application provides a computer readable storage medium, the computer readable storage medium is configured to store instructions or a computer program; when the instructions or the computer program are executed, the method of any one of the first aspect, or the method of any one of the second aspect is implemented.

[0034] In an eighth aspect, the present application provides a computer program product, the computer program product comprises computer instructions, when the instructions are executed on at least one processor, the method of any one of the first aspect to the second aspect or any one of the possible implementation manners is implemented. The computer program product can be a software installation package, and when the method is needed, the computer program product can be downloaded and executed on a computing device.

[0035] The technical solutions provided in the second aspect to the eighth aspect of the present application have the beneficial effects of the technical solutions of the first aspect to the second aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0036] The drawings needed in the following embodiment description will be briefly introduced.

[0037] FIG. 1 is a schematic diagram of an architecture of a communication system 10 provided by an embodiment of the present application;

[0038] FIG. 2 is a schematic diagram of a scenario in which a first device measures a single anchor point provided by an embodiment of the present application;

[0039] FIG. 3 is a schematic diagram of a first device measuring multiple anchor points provided by an embodiment of the present application;

[0040] FIG. 4 is a schematic diagram of a measurement sequence between a first device and multiple anchor points provided by an embodiment of the present application;

[0041] FIG. 5 is a schematic diagram of a flow of a communication method provided by an embodiment of the present application;

[0042] FIG. 6 is a schematic diagram of a first device switching corresponding anchor points in different orientations provided by an embodiment of the present application;

[0043] FIG. 7 is a schematic diagram of switching anchor points according to the orientation of a first device provided by an embodiment of the present application;

[0044] FIG. 8 is a flow diagram illustrating a process in which a first device performs measurement with an anchor point in a vehicle according to an embodiment of the present application;

[0045] FIG. 9A is a flow diagram illustrating a process in which a first device performs screening of anchor points according to an embodiment of the present application;

[0046] FIG. 9B is a flow diagram illustrating another process in which a first device performs screening of anchor points according to an embodiment of the present application;

[0047] FIG. 10 is a block diagram illustrating a structure of a communication apparatus 100 according to an embodiment of the present application;

[0048] FIG. 11 is a block diagram illustrating a structure of another communication apparatus 110 according to an embodiment of the present application. DETAILED DESCRIPTION

[0049] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0050] It should be noted that the system architecture and business scenarios described in the present application are for more clearly illustrating the technical solutions of the present application, and do not constitute a limitation on the technical solutions provided by the present application. Those skilled in the art can know that, as the system architecture evolves and new business scenarios appear, the technical solutions provided by the present application are also applicable to similar technical problems.

[0051] The system architecture to which the embodiments of the present application are applied will be described below.

[0052] Please refer to FIG. 1, which is a block diagram illustrating an architecture of a communication system 10 according to an embodiment of the present application. As shown in FIG. 1, the communication system 10 includes a vehicle 101 and a first device 102, wherein:

[0053] The vehicle 101 can be a truck, a passenger car, a bus, or a cross-country vehicle, etc. It can be understood that the vehicle in the present application can not only include a vehicle in the Internet of Vehicles (such as a whole vehicle), but also include a vehicle-mounted device or a vehicle-mounted terminal in the Internet of Vehicles, etc. The present application does not limit the specific form of the vehicle when it is applied to the Internet of Vehicles.

[0054] The first device 102 is a device with communication function, for example, the first device 102 includes a communication module. The communication module herein includes a short-range communication module. Exemplarily, the first device 102 can be a terminal such as a mobile phone or a tablet with Bluetooth function, or a physical key with a Bluetooth module, or a digital key. A user can perform operations such as unlocking or locking the vehicle 101 through the first device 102. The present application does not limit the specific form of the first device 102 when it is applied to the communication system.

[0055] In the embodiments of the present application, the communication module can use wireless communication technology to realize the related functions. The wireless communication technology can include technologies supporting wireless short-range communication, including but not limited to Bluetooth technology, wireless fidelity (Wi-Fi) technology, near field communication (NFC) technology, Wi-Fi aware technology, universal short-range communication technology, short-range wireless communication technology of Starlink Alliance specification, etc. Short-range wireless communication can have a large number of applications in file transmission, remote control, screen projection, sensing of surrounding devices (such as smart cars, smart terminal devices, smart home devices, and smart manufacturing devices, etc.), and the like. The following lists several examples of short-range communication technologies.

[0056] Bluetooth: A wireless radio technology that enables short-range communication between devices, including mobile phones, wireless headsets, laptops, related peripherals, and many other devices. Using "Bluetooth" technology, communication between mobile communication terminal devices can be effectively simplified, and communication between devices and the Internet can also be successfully simplified, so that data transmission becomes faster and more efficient, and wireless communication is broadened.

[0057] Wireless fidelity technology: Also known as wireless local area network (WLAN) direct or Wi-Fi Direct, it is a member of the Wi-Fi protocol cluster, which enables devices to easily connect to each other without the need for an intermediary wireless access point. Its use ranges from web browsing to file transfer, and simultaneous communication with multiple devices, which can fully utilize the speed advantage of Wi-Fi. Devices that meet this standard can easily interconnect even if they come from different manufacturers.

[0058] Wi-Fi aware technology: In the Wi-Fi technology, it is responsible for the sensing and discovery part, which can help Wi-Fi devices to sense the surrounding services, such as surrounding devices, and then realize the peer-to-peer (P2P) message interaction of two devices in close proximity through Wi-Fi aware. Since Wi-Fi aware can sense the surrounding devices, it can realize various functions, such as sensing nearby people and establishing a connection, and then adding friends, playing the same game, etc.; or discovering surrounding devices to realize photo sharing or location sharing, etc.; or sending files to a printer securely without accessing a network (such as a cellular or wireless network).

[0059] It should be noted that, in addition to the above-mentioned communication technologies, other existing communication technologies, or other future communication technologies that may appear as communication technologies evolve, can also be applicable to the present solution.

[0060] In order to realize the non-inductive opening and closing lock, a plurality of anchor points are usually deployed inside the vehicle 101, and the first device 102 can measure the plurality of anchor points. The first device 102 determines the distance between the vehicle 101 and the first device 102 according to the obtained measurement information, and finally realizes the non-inductive opening lock at a short distance and the closing lock at a long distance. Generally, most of the vehicle body shell of the vehicle 101 is made of metal material, and the vehicle body shielding will reduce the signal quality between the anchor point and the first device 102, and further affect the measurement accuracy. In fact, the scenario that the direct view diameter between the anchor point deployed on the vehicle 101 and the first device 102 is blocked by the vehicle body is difficult to avoid. Please refer to FIG. 2, which is a scene diagram of the first device measuring a single anchor point according to an embodiment of the present application, as shown in FIG. 2, the direct view diameter between the first device 102 at the current position and the anchor point is blocked by the vehicle body. For this shielding scenario, the measurement accuracy of the anchor point is relatively low.

[0061] Generally, the anchor point on which the opening and closing lock judgment of the vehicle is based should maintain an unshielded state with the direct view diameter between the first device, so as to ensure the measurement quality of the signal between the anchor point in the vehicle and the first device, thereby effectively realizing the high-quality opening and closing lock function. Please refer to FIG. 3, which is a diagram of the first device measuring a plurality of anchor points according to an embodiment of the present application, as shown in FIG. 3, a plurality of anchor points capable of measuring signals (for example, represented as anchor point A, anchor point B, anchor point C, anchor point D, anchor point E) are deployed at the four corners of the vehicle body and the roof position. In some solutions, when the first device gradually approaches the vehicle, the first device needs to measure each anchor point of the plurality of anchor points deployed by the vehicle, but this solution will increase power consumption. Since the measurement result of the anchor point blocked by the vehicle body has a large error, energy is still consumed for measurement under this solution. In addition, this solution also causes waste of air interface resources. Please refer to FIG. 4, which is a diagram of the measurement sequence between the first device and a plurality of anchor points according to an embodiment of the present application, as shown in FIG. 4, in combination with FIG. 3, the first device sequentially measures signals with anchor point A, anchor point B, anchor point C, anchor point D, and anchor point E. In this solution, the anchor points A, D, and E blocked by the vehicle body cannot provide high-precision measurement results, but still occupy air interface time slots, thereby causing waste of air interface resources.

[0062] Therefore, the present embodiment provides a communication method and related device, which screens out the anchor point in the vehicle whose direct view diameter with the first device is not blocked, and improves the signal measurement accuracy between the first device and the vehicle.

[0063] The embodiments of the present application will be described in detail below with reference to the drawings.

[0064] Please refer to FIG. 5, which is a flow diagram of a communication method according to an embodiment of the present application. Optionally, the method can be applied to a communication system, for example, the communication system shown in FIG. 1.

[0065] The communication method shown in FIG. 5 can include multiple steps in steps S501-S503. It should be understood that, for the convenience of description, the steps S501-S503 are described in this order, and it is not intended to limit the execution of the steps in the above order. The embodiments of the present application do not limit the order of execution, the time of execution, the number of execution, etc. of one or more steps. Steps S501-S503 are as follows:

[0066] Step S501: The first device measures multiple anchors in the vehicle at an initial frequency to obtain first measurement information.

[0067] The first device is a device with communication capability. For example, the first device can be a terminal with Bluetooth 1 function, such as a mobile phone, a tablet, a physical key with a Bluetooth module, a digital key, etc. The vehicle is a device with the ability to travel and communicate. For example, the vehicle can be a car, a truck, a bus, a van, an electric vehicle, etc.

[0068] Optionally, the first device is a key, and the key is a key that is pre-bound to the vehicle. For example, in the initialization configuration phase of the vehicle, the key is a key that is successfully matched with the vehicle in advance.

[0069] The vehicle of the embodiments of the present application is deployed with multiple anchors, such as anchor A, anchor B, anchor C, anchor D, and anchor N. By deploying multiple anchors on the vehicle, the influence of the occlusion of the first device and the anchors by the vehicle body on the measurement accuracy is minimized, and good direct visibility is maintained between the first device and some or all of the anchors in the vehicle at any position outside the vehicle.

[0070] The first measurement information is an exemplary name used to distinguish a certain measurement information. Optionally, the first measurement information includes one or more of the ranging value, the signal strength, the angle, the position, etc.

[0071] Optionally, the first device can periodically measure the plurality of anchors in the vehicle to obtain the first measurement information. For example, the vehicle can measure the plurality of anchors in the vehicle every hour, every minute, or every second to obtain the first measurement information. Further optionally, the first device can perform a wireless communication measurement with the plurality of anchors. For example, the wireless communication measurement can include, but is not limited to, a distance measurement by a high accuracy distance measurement (HADM), an ultra wideband (UWB), a received signal strength indication (RSSI), or the like.

[0072] For example, in combination with FIG. 3, the first device can measure the anchors A, B, C, D, and E to obtain the first measurement information. For example, the first measurement information can include that the signal strength of the first device relative to the anchor A is weak, the signal strength of the first device relative to the anchor B is strong, the signal strength of the first device relative to the anchor C is strong, the signal strength of the first device relative to the anchor D is weak, and the signal strength of the first device relative to the anchor E is weaker.

[0073] In step S502, the first device determines, according to the first measurement information, a first anchor of the plurality of anchors, the first anchor having an unobstructed line-of-sight with the first device.

[0074] For example, the first anchor can be the anchor A, the anchor B, or another anchor, or a combination of a plurality of anchors. The unobstructed line-of-sight between the first anchor and the first device can be used to achieve a high-quality opening and closing lock function. Optionally, the line-of-sight between the first anchor and the first device can be unobstructed by other obstacles (such as a tree trunk, a neighboring vehicle between the current vehicle and the first device, or the like).

[0075] For example, in combination with the first measurement information and FIG. 3, the line-of-sight between the first device and the anchors A, D, and E can be obstructed by the vehicle body, but the line-of-sight between the first device and the anchors B and C is good. Therefore, the high-precision measurement results of the anchors B and C can be used to achieve the subsequent opening and closing lock function.

[0076] Next, the process of obtaining the unobstructed line-of-sight between the anchors B and C and the first device is described in detail.

[0077] In one possible design, the first device determines a first index according to the first measurement information. In a case where the first index is less than a first threshold, the first anchor of the plurality of anchors has an unobstructed line-of-sight with the first device.

[0078] The first index is positively related to a degree to which the first anchor point in the plurality of anchor points is blocked from the line-of-sight range of the first device.

[0079] For example, the first index obtained by the first device according to the first measurement information is 10%, the first threshold value is 20%, and the first anchor points associated with the first index are anchor point B and anchor point C. In the case where the first index is less than the first threshold value, anchor point B and anchor point C are not blocked from the line-of-sight range of the first device.

[0080] In a possible design, the first device determines the first index according to the first measurement information, and in the case where the first index is greater than the first threshold value, the first anchor point in the plurality of anchor points is not blocked from the line-of-sight range of the first device.

[0081] The first index is negatively related to a degree to which the first anchor point in the plurality of anchor points is blocked from the line-of-sight range of the first device.

[0082] For example, the first index obtained by the first device according to the first measurement information is 90%, the first threshold value is 80%, and the first anchor points associated with the first index are anchor point B and anchor point C. In the case where the first index is greater than the first threshold value, anchor point B and anchor point C are not blocked from the line-of-sight range of the first device.

[0083] In a possible design, the first device calculates a position of the first device relative to the plurality of anchor points according to the first measurement information, and determines the first anchor point in the plurality of anchor points that is not blocked from the line-of-sight range of the first device according to the position of the first device relative to the plurality of anchor points and a structure of the vehicle.

[0084] For example, in combination with FIG. 3, the first device calculates the position of the first device relative to anchor point A as being 20° in the southwest direction and 30 m away, the position of the first device relative to anchor point B as being 30° in the southwest direction and 15 m away, the position of the first device relative to anchor point C as being 30° in the northwest direction and 16 m away, the position of the first device relative to anchor point D as being 20° in the northwest direction and 28 m away, and the position of the first device relative to anchor point E as being 5° in the southwest direction and 22 m away. Then the first device obtains the first anchor points in the plurality of anchor points that are not blocked from the line-of-sight range of the first device as anchor point B and anchor point C according to the position of the first device relative to the plurality of anchor points and the structure of the vehicle.

[0085] In a possible design, the first device sorts the first measurement information to obtain the anchor point in the plurality of anchor points that is less than a second threshold value in a ranging value of a distance between the anchor point and the first device, and regards the anchor point in the plurality of anchor points that is less than the second threshold value in the ranging value of the distance between the anchor point and the first device as the first anchor point in the plurality of anchor points that is not blocked from the line-of-sight range of the first device.

[0086] For example, in combination with FIG. 3, the first device calculates the distance between the first device and anchor point A to be 30 m according to the first measurement information; the distance between the first device and anchor point B to be 15 m; the distance between the first device and anchor point C to be 16 m; the distance between the first device and anchor point D to be 28 m; and the distance between the first device and anchor point E to be 22 m. Then the first device sorts the ranging values between the first device and the plurality of anchor points, and can obtain that the anchor points corresponding to the ranging values less than the second threshold value 18 m are anchor point B and anchor point C.

[0087] Optionally, the first anchor point between the first device and the plurality of anchor points whose direct diameter is not blocked can also be screened out by the strength of the signal strength of the first device relative to the anchor point.

[0088] For ease of understanding, please refer to Table 1, which shows a possible relationship table for judging whether an anchor point is blocked.

[0089] Table 1

[0090] For example, the RSSI of the first device can be used to indicate the signal strength of the first device relative to the anchor point. The RSSI is usually negative, and the closer the RSSI is to zero, the higher the signal strength of the first device relative to the anchor point. The RSSI of the first device is associated with whether the first device enters the specified range of the vehicle, and the RSSI of the first device attenuates as the distance between the first device and the vehicle increases, that is, the smaller the distance between the first device and the vehicle, the stronger the RSSI of the first device. As can be seen from Table 1, the measurement accuracy of the RSSI of the first device is the highest when the first device measures anchor point B and anchor point C, so the first device can determine anchor point B and anchor point C as the first anchor point between the first device and the plurality of anchor points whose direct diameter is not blocked.

[0091] Step S503: The first device measures the first anchor point to obtain second measurement information.

[0092] The second measurement information is used to indicate the relative position between the vehicle and the first device.

[0093] As a possible implementation, the first device and the first anchor point measure at a first frequency to obtain the second measurement information.

[0094] Optionally, the first frequency is greater than or equal to the initial frequency. Illustratively, the first frequency is greater than or equal to 20 Hz, and the initial frequency is 20 Hz. In other words, the first device can measure with the first anchor point screened out at a high frequency to obtain second measurement information. Illustratively, taking anchor point B and anchor point C as examples, the first device measures with anchor point B and anchor point C at a frequency of 20 Hz, and the second measurement information obtained can include: the signal strength of the first device relative to anchor point B is strong, and the signal strength of the first device relative to anchor point C is strong. Optionally, the first device can determine the relative position between the vehicle and the first device in combination with the signal strengths of anchor point B and anchor point C, the relative relationship of the RSSI of the first device with the distance between the first device and the vehicle, and a perception algorithm.

[0095] Optionally, for anchor points other than the first anchor point in the plurality of anchor points, i.e., second anchor points (such as anchor point A, anchor point D, and anchor point E), these anchor points are more or less blocked by the vehicle body and cannot provide high-precision measurement results, but still occupy air interface time slots, resulting in waste of air interface resources. In order to more effectively utilize resources, other frequency measurements can be performed on these anchor points.

[0096] As a possible implementation, the first device measures with the second anchor point at a second frequency to obtain third measurement information.

[0097] The second anchor point is an anchor point other than the first anchor point in the plurality of anchor points. Illustratively, in combination with FIG. 3, the plurality of anchor points include anchor point A, anchor point B, anchor point C, anchor point D, and anchor point E. The first anchor points are anchor point B and anchor point C, and the second anchor points are anchor point A, anchor point D, and anchor point E.

[0098] Illustratively, the first device measures with anchor point A, anchor point D, and anchor point E at a second frequency to obtain third measurement information, which can include: the signal strength of the first device relative to anchor point A is weak, the signal strength of the first device relative to anchor point D is weak, and the signal strength of the first device relative to anchor point E is relatively weak.

[0099] Optionally, the first frequency is greater than the second frequency, and the initial frequency is greater than the second frequency. Illustratively, the first frequency is greater than or equal to 20 Hz, the initial frequency is 20 Hz, and the second frequency is 5 Hz. In other words, the first device can measure with the first anchor point screened out at a medium frequency to obtain third measurement information.

[0100] Further optionally, the initial frequency is much greater than the second frequency. Illustratively, the first frequency is greater than or equal to 20 Hz, the initial frequency is 20 Hz, and the second frequency is 1 Hz. In other words, the first device can measure with the first anchor point screened out at a low frequency to obtain third measurement information.

[0101] As a possible implementation, the first device does not measure with the second anchor point when the accuracy of the measurement result of the second anchor point is too low.

[0102] Optionally, the first device determines in real time whether to switch anchor points according to the obtained second measurement information. When the first device reaches the position boundary requiring switching of anchor points, a new anchor point needs to be selected and switched. When the first device does not reach the position boundary requiring switching of anchor points, the anchor point is not switched, and the step of measuring with the first anchor point to obtain second measurement information is continued.

[0103] As a possible implementation, the first device measures with the first anchor point again to obtain fourth measurement information, the second measurement information and the fourth measurement information are measurement information at different times, the first device determines a third anchor point in the plurality of anchor points based on the second measurement information and the fourth measurement information, the third anchor point includes an anchor point whose direct diameter with the first device is not blocked, the first device measures with the third anchor point to obtain fifth measurement information, and the fifth measurement information is used to indicate the relative position between the first anchor point and the first device.

[0104] For ease of understanding, refer to FIG. 6, which is a schematic diagram of switching corresponding anchor points in different positions of a first device according to an embodiment of the present application. As shown in FIG. 6, the first device screens a third anchor point in the plurality of anchor points whose direct diameter with the first device is not blocked according to the current position of the first device by using the dynamic selection of anchor points. As shown in FIG. 6, when the first device is in a front position of the vehicle (for example, position 1), the screened anchor points are two anchor points in front of the vehicle (for example, represented as anchor point A and anchor point B). When the first device moves to the left side of the vehicle (for example, from position 1 to position 2), the anchor points are switched to two anchor points on the left side of the vehicle (for example, represented as anchor point B and anchor point C). As the first device continues to move to the rear direction of the vehicle (for example, from position 2 to position 3), the anchor points are switched to two anchor points on the rear side of the vehicle (for example, represented as anchor point C and anchor point D). When the first device moves to the right direction of the vehicle (for example, from position 3 to position 4), the anchor points are switched to two anchor points on the right side of the vehicle (for example, represented as anchor point D and anchor point A).

[0105] Exemplarily, taking two orientations as examples, please refer to FIG. 7, which is a schematic diagram of switching the anchor point according to the orientation of the first device, as shown in FIG. 7, when the first device is at orientation K, at this time, according to the principle of minimum distance, anchor points B and C are screened out as the first anchor points; when the first device moves from orientation K to orientation K' along the arrow direction, the ranging value between the first device and anchor point B gradually increases, while the ranging value between the first device and anchor point C gradually decreases, which indicates that the first device is moving away from anchor point B and approaching anchor point C. In other words, the first device has reached the critical position at this time, and needs to switch the anchor point according to the ranging value. Therefore, at this time, anchor point D becomes the selected anchor point to be switched, that is, the anchor points predicted to have unobstructed direct view diameter with the first device are anchor point C and anchor point D, and the first device can switch the first anchor points to the third anchor points, that is, switch anchor point B and anchor point C to anchor point C and anchor point D. The first device measures anchor point C and anchor point D to obtain the fifth measurement information, which can include: the signal strength of the first device relative to anchor point C is strong, and the signal strength of the first device relative to anchor point D is strong. Based on the above logic, the relationship between the ranging value change and the anchor point switching in other scenarios is the same, which will not be described here.

[0106] Generally speaking, when the direct view diameter between the first device and the anchor points in the vehicle is obstructed by the vehicle body, it will cause the measurement result of the anchor point to be less accurate, and further affect the accuracy of the final implementation of the non-sensing opening and closing lock at a short distance and closing lock at a long distance. Therefore, in the present application, the first device can screen out the first anchor point from the multiple anchor points in the vehicle which has unobstructed direct view diameter with the first device as the main anchor point for measurement, so as to improve the accuracy of the measurement result of the anchor point, ensure the effective use of resources, and provide convenience for the final implementation of the high-quality opening and closing lock function.

[0107] The embodiment shown in FIG. 5 explains in detail the interaction principle between the vehicle and the first device. In order to facilitate understanding, a specific case of the first device measuring the anchor points in the vehicle is exemplified below in combination with FIG. 8.

[0108] Please refer to FIG. 8, which is a flowchart of the first device measuring the anchor points in the vehicle, as shown in FIG. 8, taking the first device as a vehicle key as an example, the case is as follows:

[0109] Step 11: The vehicle key approaches the vehicle.

[0110] Step 12: The vehicle key measures signals with multiple anchor points.

[0111] Step 13: The vehicle key screens out the anchor points from the multiple anchor points which have unobstructed direct view diameter with the vehicle key according to the measurement information of the multiple anchor points.

[0112] Step 14: The vehicle key performs high-frequency measurement on the anchor points whose direct diameters with the vehicle key are not blocked, and performs low-frequency measurement or no measurement on the other anchor points.

[0113] Step 15: The vehicle key determines whether it is necessary to switch the anchor point.

[0114] Step 16: If yes, the vehicle key reselects and switches the anchor point.

[0115] After reselecting and switching the anchor point, step 14 is performed again. If no, the vehicle key performs step 14 again.

[0116] The following illustrates a specific case of screening anchor points through two embodiments with reference to FIGS. 9A and 9B.

[0117] Referring to FIG. 9A, FIG. 9A is a flowchart of screening anchor points by a first device according to an embodiment of the present application. As shown in FIG. 9A, taking the first device as a vehicle key as an example, case one is specifically as follows.

[0118] Step 21: The vehicle key approaches the vehicle.

[0119] Step 22: The vehicle key performs signal measurement on the anchor points.

[0120] Step 23: The vehicle key calculates the position of the vehicle key relative to the anchor points in real time according to the measurement information of the anchor points.

[0121] Step 24: The vehicle key screens the anchor points whose direct diameters with the vehicle key are not blocked according to the position of the vehicle key relative to the anchor points.

[0122] Step 25: The vehicle key performs high-frequency measurement on the anchor points whose direct diameters with the vehicle key are not blocked, and performs low-frequency measurement or no measurement on the other anchor points.

[0123] Step 26: The vehicle key determines whether it is necessary to switch the anchor point based on the change of the position of the vehicle key relative to the anchor points.

[0124] Step 27: If yes, the vehicle key reselects and switches the anchor point.

[0125] After reselecting and switching the anchor point, step 25 is performed again. If no, the vehicle key performs step 25 again.

[0126] Referring to FIG. 9B, FIG. 9B is a flowchart of screening anchor points by another first device according to an embodiment of the present application. As shown in FIG. 9B, still taking the first device as a vehicle key as an example, case two is specifically as follows.

[0127] Step 31: The vehicle key approaches the vehicle.

[0128] Step 32: The vehicle key performs signal measurement with each of the plurality of anchor points.

[0129] Step 33: The vehicle key calculates a ranking result of the ranging values of the plurality of anchor points in real time according to the measurement information of the plurality of anchor points.

[0130] Step 34: The vehicle key screens out the anchor points from the plurality of anchor points, for which the direct-viewing diameter between the vehicle key and the anchor points is not blocked, according to the ranking result of the ranging values of the plurality of anchor points.

[0131] Step 35: The vehicle key performs high-frequency measurement on the anchor points from the plurality of anchor points, for which the direct-viewing diameter between the vehicle key and the anchor points is not blocked, and performs low-frequency measurement or no measurement on the other anchor points.

[0132] Step 36: The vehicle key determines whether it is necessary to switch the anchor points based on a change in the ranking result of the ranging values of the plurality of anchor points.

[0133] Step 37: If yes, the vehicle key reselects and switches the anchor points.

[0134] After reselecting and switching the anchor points, Step 35 is performed again. If no, the vehicle key performs Step 35 again.

[0135] It should be noted that the detailed explanations of Steps 11-16, Steps 21-27 and Steps 31-37 can be referred to the embodiment described in FIG. 5, which will not be repeated here.

[0136] The method of the embodiment of the present application is described in detail above, and the device of the embodiment of the present application is provided below.

[0137] It should be understood that the device provided in the embodiment of the present application is only a logical division of the units, and can be integrated into one physical entity or physically separated when actually implemented. In addition, the units in the device can be implemented in the form of processor calling software. For example, the device includes a processor, the processor is connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any one of the above methods or to realize the functions of each unit of the device, wherein the processor is a general processor, such as a central processing unit (CPU) or a microprocessor, and the memory is an internal memory or an external memory of the device.

[0138] Alternatively, the units in the apparatus can be implemented in the form of hardware circuitry, and part or all of the units can be implemented through design of the hardware circuitry, which can be understood as one or more processors. For example, in one implementation, the hardware circuitry is an application-specific integrated circuit (ASIC) designed through logical relationship between elements in the circuitry to implement part or all of the units. For another example, in another implementation, the hardware circuitry is a programmable logic device (PLD) that can be implemented through a field programmable gate array (FPGA), which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured through a configuration file, thereby implementing part or all of the units.

[0139] In the embodiments of the present application, each unit in the apparatus can be one or more processors (or processing circuitry) configured to implement the above methods, such as a CPU, a graphics processing unit (GPU), a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), a micro processor unit (MPU), a digital signal processor (DSP), an ASIC, a FPGA, or a combination of at least two of these processor forms.

[0140] In addition, each unit in the above apparatus can be integrated together in whole or in part, or can be independently implemented. In one implementation, the units are integrated together in the form of a system on a chip (SOC, or system-level chip). The SOC can include at least one processor for implementing any of the above methods or implementing the functions of each unit of the apparatus, and the at least one processor can be of different types, such as including a CPU and an FPGA, or including a CPU and an artificial intelligence processor, or including a CPU and a GPU, etc. The following lists several possible apparatuses.

[0141] Please refer to Fig. 10, which is a structural schematic diagram of a communication apparatus 100 provided in an embodiment of the present application. Optionally, the communication apparatus 100 can be a standalone device, such as a first device, etc. Alternatively, the communication apparatus 100 can also be a component, such as a chip or an integrated circuit, etc. in a standalone device (such as the first device). The communication apparatus 100 is configured to implement the foregoing communication method, such as the communication method shown in Fig. 5.

[0142] In a possible design, the communication apparatus 100 includes a measurement unit 1001 and a determination unit 1002, and is configured to implement the foregoing communication method, such as the communication method shown in Fig. 5. For example, the communication apparatus 100 is configured to perform the method performed by the first device.

[0143] In a possible implementation, the measurement unit 1001 is configured to perform measurement with a plurality of anchor points in a vehicle at an initial frequency, to obtain first measurement information. The determination unit 1002 is configured to determine, according to the first measurement information, a first anchor point in the plurality of anchor points that is not blocked in a direct view range of the first device. The measurement unit 1001 is further configured to perform measurement with the first anchor point, to obtain second measurement information, which is used to indicate a relative position between the first anchor point and the first device.

[0144] In another possible implementation, the first device is pre-bound with the vehicle, and the first device includes a key.

[0145] In another possible implementation, in the measurement with the first anchor point to obtain the second measurement information, the measurement unit 1001 is specifically configured to perform measurement with the first anchor point at a first frequency to obtain the second measurement information, where the first frequency is greater than the initial frequency. The measurement unit 1001 is further configured to perform measurement with a second anchor point at a second frequency to obtain third measurement information, where the first frequency is greater than the second frequency, and the second frequency is greater than the initial frequency, and the second anchor point is an anchor point in the plurality of anchor points other than the first anchor point.

[0146] In another possible implementation, the measurement unit 1001 is further configured to not perform measurement with a second anchor point, where the second anchor point is an anchor point in the plurality of anchor points other than the first anchor point.

[0147] In another possible implementation, in the determination of the first anchor point in the plurality of anchor points that is not blocked in the direct view range of the first device according to the first measurement information, the determination unit 1002 is specifically configured to determine a first index according to the first measurement information, where the first index is positively correlated with a degree to which the direct view range of the first anchor point in the plurality of anchor points is blocked in the first device. In a case where the first index is less than a first threshold, the first anchor point in the plurality of anchor points is not blocked in the direct view range of the first device.

[0148] In a further possible implementation, in determining, according to the first measurement information, the first anchor point of the plurality of anchor points for which the line-of-sight diameter to the first device is not blocked, the determining unit 1002 is specifically configured to: calculate, according to the first measurement information, a position of the first device relative to the plurality of anchor points; and determine, according to the position of the first device relative to the plurality of anchor points and a structure of the vehicle, the first anchor point of the plurality of anchor points for which the line-of-sight diameter to the first device is not blocked by the vehicle.

[0149] In a further possible implementation, in determining, according to the first measurement information, the first anchor point of the plurality of anchor points for which the line-of-sight diameter to the first device is not blocked, the determining unit 1002 is specifically configured to: sort the first measurement information to obtain anchor points of the plurality of anchor points for which a ranging value of a distance between the anchor points and the first device is less than a second threshold value; and determine, as the first anchor point of the plurality of anchor points for which the line-of-sight diameter to the first device is not blocked, the anchor points of the plurality of anchor points for which the ranging value of the distance between the anchor points and the first device is less than the second threshold value.

[0150] In a further possible implementation, in determining, according to the first measurement information, the first anchor point of the plurality of anchor points for which the line-of-sight diameter to the first device is not blocked, the determining unit 1002 is specifically configured to: determine, according to the first measurement information, a first index, the first index being negatively correlated with a degree to which the line-of-sight diameter between the first anchor point of the plurality of anchor points and the first device is blocked. In a case where the first index is greater than a first preset value, the line-of-sight diameter between the first anchor point of the plurality of anchor points and the first device is not blocked.

[0151] In a further possible implementation, the measuring unit 1001 is further configured to perform measurement with the first anchor point again to obtain fourth measurement information, the second measurement information and the fourth measurement information being measurement information at different times. The determining unit 1002 is further configured to determine, based on the second measurement information and the fourth measurement information, a third anchor point of the plurality of anchor points, the third anchor point including an anchor point for which the line-of-sight diameter to the first device is predicted to be unblocked. The measuring unit 1001 is further configured to perform measurement with the third anchor point to obtain fifth measurement information, the fifth measurement information being used to indicate a relative position between the first anchor point and the first device.

[0152] In a further possible implementation, the measurement information includes one or more of the following: a ranging value, a signal strength, an angle, or a position.

[0153] The embodiments of the present application and the method embodiments described above are based on the same concept, and bring the same technical effects. For specific principles, refer to the description of the above-described embodiments, which will not be repeated here.

[0154] Please refer to FIG. 11, which is a structural schematic diagram of a communication apparatus 110 provided by an embodiment of the present application. The communication apparatus 110 can be a standalone device, for example, a first device, or a component included in a standalone device, for example, a chip, a software module, or an integrated circuit, etc. The communication apparatus 110 can include at least one processor 1101 and a communication interface 1102. Optionally, it can also include at least one memory 1103. Further optionally, it can also include a connection line 1104, wherein the processor 1101, the communication interface 1102 and / or the memory 1103 are connected through the connection line 1104, and / or communicate with each other through the connection line 1104 to transfer control signals and / or data signals.

[0155] Wherein:

[0156] The processor 1101 is a module for performing arithmetic operations and / or logical operations, and can specifically include one or more of the following modules: a filter, a modem, a power amplifier, a low noise amplifier (LNA), a baseband processor, a radio frequency processor, a radio frequency circuit, a central processing unit (CPU), an application processor (AP), a microcontroller unit (MCU), an electronic control unit (ECU), a graphics processing unit (GPU), a microprocessor unit (MPU), an application specific integrated Circuit (ASIC), an image signal processor (ISP), a digital signal processor (DSP), a field programmable gate array (FPGA), a complex programmable logic device (CPLD), or a co-processor, etc.

[0157] The communication interface 1102 can be used to provide information input or output for at least one processor, or to receive externally transmitted signals and / or transmit signals to the outside.

[0158] For example, the communication interface 1102 can include an interface circuit.

[0159] For example, the communication interface 1102 can include a wired link interface such as an Ethernet cable, and can also be a wireless link (Wi-Fi, Bluetooth, universal wireless transmission, vehicle-mounted short-range communication technology, and other short-range wireless communication technologies) interface.

[0160] Optionally, the communication interface 1102 can also include a radio frequency transmitter, an antenna, and the like. In the case where the communication interface 1102 includes an antenna, the number of antennas can be one or multiple.

[0161] As one possible design, if the communication device 110 is a standalone device, the communication interface 1102 can include a receiver and a transmitter. The receiver and the transmitter can be the same component, or can be different components. When the receiver and the transmitter are the same component, the component can be referred to as a transceiver.

[0162] As another possible design, if the communication device 110 is a chip or a circuit, the communication interface 1102 can include an input interface and an output interface. The input interface and the output interface can be the same interface, or can be different interfaces.

[0163] Optionally, the functions of the communication interface 1102 can be implemented by a transceiver circuit or a dedicated chip of the transceiver.

[0164] The memory 1103 is used to provide a storage space, in which data such as an operating system and a computer program can be stored. The memory 1103 can be one or a combination of a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), or a compact disc read-only memory (CD-ROM), and the like.

[0165] It should be noted that the functions and actions of the modules or units in the above-mentioned communication device 110 are only exemplary.

[0166] The functional units in the communication device 110 can be used to implement the above-mentioned communication method, such as the communication method shown in FIG. 5, for example, to execute the method performed by the first device.

[0167] Optionally, the processor 1101 can be a processor specially used to execute the above-mentioned method (conveniently referred to as a special-purpose processor), or can be a processor that executes the above-mentioned method by calling a computer program (conveniently referred to as a special-purpose processor). Optionally, the at least one processor can include both a special-purpose processor and a general-purpose processor.

[0168] Optionally, in the case where the communication apparatus 110 comprises at least one memory 1103, if the processor 1101 implements the foregoing communication method by invoking a computer program, the computer program can be stored in the memory 1103.

[0169] The embodiment of the present application further provides a chip, which comprises a logic circuit and a communication interface. The communication interface is used for receiving a signal or transmitting a signal; and the logic circuit is used for receiving the signal or transmitting the signal through the communication interface. The chip is used for implementing the foregoing communication method, for example, the communication method shown in Fig. 5.

[0170] The embodiment of the present application further provides a computer readable storage medium, which stores instructions. When the instructions are run on at least one processor (or a communication apparatus), the foregoing communication method, for example, the communication method shown in Fig. 5, is implemented.

[0171] The embodiment of the present application further provides a computer program product, which comprises computer instructions. The computer instructions are used for implementing the foregoing communication method, for example, the communication method shown in Fig. 5.

[0172] It should be noted that, in the embodiment of the present application, the words such as "exemplarily" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplarily" or "for example" in the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. In fact, the words such as "exemplarily" or "for example" are intended to present the relevant concept in a specific manner.

[0173] In the present application, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or the like refers to any combination of these items, including any combination of single item (s) or multiple items (s).

[0174] For example, at least one of a, b, or c can represent: a, b, c, (a and b), (a and c), (b and c), or (a and b and c), where a, b, and c can be single or multiple. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A alone, A and B together, and B alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0175] Also, unless otherwise stated, the use of "first", "second", etc. adjectives in the embodiments herein is used to distinguish multiple objects, and is not intended to denote order, time sequence, priority, or importance of the multiple objects. For example, a first node and a second node are merely used to facilitate the description of fresh parameters in different embodiments, and do not indicate that the operations, importance, structure, etc. of the nodes are different.

[0176] In the above embodiments, according to the context, the term "when" can be interpreted as meaning "if", "before", "determine", or "detect". The above is only an optional embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. within the concept and principle of the present application should be included in the protection scope of the present application.

[0177] A person of ordinary skill in the art can understand that all or part of the steps of the above embodiments can be completed by hardware, or by a program instructing relevant hardware, and the program can be stored in a computer readable storage medium, such as a read-only memory, a magnetic disk, or an optical disk.

Claims

1. A communication method characterized by comprising: The method is applied to a first device, and comprises: measuring a plurality of anchor points in a vehicle at an initial frequency to obtain first measurement information; determining, according to the first measurement information, a first anchor point in the plurality of anchor points that is not blocked in a direct view diameter with the first device; measuring the first anchor point to obtain second measurement information, the second measurement information being used to indicate a relative position between the vehicle and the first device.

2. The method of claim 1, wherein: the first device is previously bound to the vehicle, and the first device comprises a key.

3. The method according to claim 1 or 2, characterized in that, the measuring the first anchor point to obtain second measurement information comprises: measuring the first anchor point at a first frequency to obtain the second measurement information, the first frequency being greater than or equal to the initial frequency; the method further comprises: measuring a second anchor point at a second frequency to obtain third measurement information, the first frequency being greater than the second frequency, the initial frequency being greater than the second frequency, and the second anchor point being an anchor point in the plurality of anchor points other than the first anchor point.

4. The method according to claim 1 or 2, characterized in that, the method further comprises: not measuring a second anchor point, the second anchor point being an anchor point in the plurality of anchor points other than the first anchor point.

5. The method according to any one of claims 1 to 4, characterized in that, the determining, according to the first measurement information, a first anchor point in the plurality of anchor points that is not blocked in a direct view diameter with the first device comprises: determining a first index according to the first measurement information, the first index being positively correlated with a degree to which a direct view diameter between a first anchor point in the plurality of anchor points and the first device is blocked; in a case where the first index is less than a first threshold value, the direct view diameter between the first anchor point in the plurality of anchor points and the first device is not blocked.

6. The method according to any one of claims 1 to 4, characterized in that, the determining, according to the first measurement information, a first anchor point in the plurality of anchor points that is not blocked in a direct view diameter with the first device comprises: calculating a position of the first device relative to the plurality of anchor points according to the first measurement information; determining, according to the position of the first device relative to the plurality of anchor points and a structure of the vehicle, the first anchor point in the plurality of anchor points that is not blocked in the direct view diameter with the first device by the vehicle.

7. The method according to any one of claims 1 to 4, characterized in that, the determining, according to the first measurement information, a first anchor point in the plurality of anchor points that is not blocked in a direct view diameter with the first device comprises: sorting the first measurement information to obtain an anchor point in the plurality of anchor points that has a ranging value of a distance between the anchor point and the first device less than a second threshold value; taking the anchor point in the plurality of anchor points that has the ranging value of the distance between the anchor point and the first device less than the second threshold value as the first anchor point in the plurality of anchor points that is not blocked in the direct view diameter with the first device.

8. The method according to any one of claims 1 to 7, characterized in that, the method further comprises: re-measuring the first anchor point to obtain fourth measurement information, the second measurement information and the fourth measurement information being measurement information at different time points; determining, based on the second measurement information and the fourth measurement information, a third anchor point in the plurality of anchor points, the third anchor point comprising an anchor point that is predicted to be unblocked in a direct view diameter with the first device; measure with the third anchor point to obtain fifth measurement information, the fifth measurement information being used to indicate the relative position between the first anchor point and the first device.

9. The method according to any one of claims 1 to 8, characterized in that, The measurement information comprises one or more of the following: ranging value, signal strength, angle or position.

10. A communications device, characterized by The apparatus comprises a measurement unit and a determination unit, wherein: The measurement unit is configured to measure with a plurality of anchor points in the vehicle at an initial frequency to obtain first measurement information; The determination unit is configured to determine, according to the first measurement information, a first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device. The measurement unit is further configured to measure with the first anchor point to obtain second measurement information, the second measurement information being used to indicate the relative position between the first anchor point and the first device.

11. The apparatus of claim 10, wherein: The first device is pre-bound with the vehicle, and the first device comprises a key.

12. The apparatus of claim 10 or 11, wherein, In the measurement with the first anchor point to obtain second measurement information, the measurement unit is specifically configured to: measure with the first anchor point at a first frequency to obtain the second measurement information, the first frequency being greater than the initial frequency; The measurement unit is further configured to measure with a second anchor point at a second frequency to obtain third measurement information, the first frequency being greater than the second frequency, the second frequency being greater than the initial frequency, and the second anchor point being an anchor point in the plurality of anchor points other than the first anchor point.

13. The apparatus of claim 10 or 11, wherein, The measurement unit is further configured to not measure with a second anchor point, the second anchor point being an anchor point in the plurality of anchor points other than the first anchor point.

14. The apparatus of any one of claims 10-13, wherein, In the determination, according to the first measurement information, of a first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device, the determination unit is specifically configured to: determine a first index according to the first measurement information, the first index being positively correlated with the degree to which the direct view diameter of a first anchor point in the plurality of anchor points is blocked with the first device; In the case where the first index is less than a first threshold value, the direct view diameter of the first anchor point in the plurality of anchor points is not blocked with the first device.

15. The apparatus of any of claims 10-13, wherein, In the determination, according to the first measurement information, of a first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device, the determination unit is specifically configured to: calculate the position of the first device relative to the plurality of anchor points according to the first measurement information; determine the first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device according to the position of the first device relative to the plurality of anchor points and the structure of the vehicle.

16. The apparatus of any one of claims 10-13, wherein, In the determination, according to the first measurement information, of a first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device, the determination unit is specifically configured to: sort the first measurement information to obtain an anchor point in the plurality of anchor points which has a ranging value of the distance between the first device less than a second threshold value; and determine the first anchor point in the plurality of anchor points which is not blocked in the direct view diameter with the first device according to the position of the first device relative to the plurality of anchor points and the structure of the vehicle. The anchor points in the plurality of anchor points whose ranging values of distances from the first device are less than the second threshold value are taken as first anchor points in the plurality of anchor points whose direct diameters from the first device are not blocked.

17. The apparatus of any one of claims 10-16, wherein, The measurement unit is further configured to measure the first anchor point again to obtain fourth measurement information, the second measurement information and the fourth measurement information being measurement information at different times; The determination unit is further configured to determine, based on the second measurement information and the fourth measurement information, third anchor points in the plurality of anchor points, the third anchor points including anchor points predicted to have unblocked direct diameters from the first device; The measurement unit is further configured to measure the third anchor point to obtain fifth measurement information, the fifth measurement information being used to indicate relative positions between the first anchor point and the first device.

18. The apparatus of any of claims 10-17, wherein, The measurement information includes one or more of the following: a ranging value, a signal strength, an angle, or a position.

19. A communications device, characterized by The communication apparatus includes at least one processor and a communication interface; The communication interface is configured to receive and / or transmit data, and / or the communication interface is configured to provide input and / or output for the processor; The at least one processor is configured to implement the method of any one of claims 1-9.

20. A vehicle characterized by comprising: The vehicle includes the communication apparatus of any one of claims 10-19.

21. A first device, comprising: The key includes the communication apparatus of any one of claims 10-19.

22. A computer-readable storage medium, characterized in that, The computer readable storage medium stores instructions, which when executed on at least one processor, implement the method of any one of claims 1-9.

23. A computer program product, characterised in that, The computer program product includes instructions or a computer program; the instructions or the computer program, when executed, implement the method of any one of claims 1-9.

Images