Location information determination method and communication device
By sending location-related information of AIoT devices from the first device to the second device, the problem of difficulty in determining the location information of AIoT devices is solved, and accurate location information can be obtained in different communication scenarios.
Patent Information
- Application Number
- PCT/CN2025/112787
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-08-09
- Filing Date
- 2025-08-05
- Publication Date
- 2026-02-12
AI Technical Summary
In existing technologies, it is difficult to determine the location information of environment-enabled Internet of Things (AIoT) devices, which makes it impossible to accurately perform corresponding operations.
The first device sends location-related information of the AIoT device to the second device, and the second device determines the location information of the AIoT device based on the received information, adapting to different communication scenarios and achieving accurate location information determination.
It can accurately obtain the location information of AIoT devices in different communication scenarios and adapt to various scenario requirements.
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Figure CN2025112787_12022026_PF_FP_ABST
Abstract
Description
Method for determining location information and communication device
[0001] Cross-reference to related applications
[0002] The present application claims priority from the Chinese patent application No. 202411093568.2 filed on August 9, 2024, and entitled "Method for determining location information and communication device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD
[0003] The present application belongs to the field of communication technology, and particularly relates to a method for determining location information and a communication device. BACKGROUND
[0004] Ambient power-enabled Internet of Things (AIoT) is a new 3rd Generation Partnership Project (3GPP) IoT technology. AIoT devices have ultra-low complexity and power consumption, and can be powered by energy harvesting and communicate with other devices (such as User Equipment (UE) and the like). For example, AIoT devices (similar to Radio Frequency IDendification tags (RFID tags)) can send data to UEs (similar to RFID readers), or receive data sent by UEs to AIoT devices, and the like.
[0005] In some scenarios, it is usually necessary to determine the location information of the AIoT device, so as to perform corresponding operations according to the location information of the AIoT device. For example, AIoT operations can be improved according to the location information of the AIoT device to better perform AIoT services, and the like. However, in actual applications, the communication scenarios of AIoT devices are usually complex, and the location information of the AIoT device cannot be accurately obtained in the related art. SUMMARY
[0006] In a first aspect, a method for determining location information is provided, which is performed by a second device, and the method comprises: receiving, by the second device, first information sent by a first device, wherein the first information comprises location-related information of an Ambient power-enabled Internet of Things (AIoT) device; and determining, by the second device, second information according to the first information, wherein the second information is used to indicate the location information of the AIoT device.
[0007] In a second aspect, a method for determining position information is provided, executed by a first device, and includes: sending, by the first device, first information to a second device; wherein the first information includes position-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate position information of the AIoT device.
[0008] In a third aspect, a method for determining position information is provided, executed by a base station, and includes: sending, by the base station, first information to a core network device; wherein the first information includes position-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate position information of the AIoT device.
[0009] In a fourth aspect, a method for determining position information is provided, executed by a UE, and includes: sending, by the UE, first information to a core network device, wherein the first information includes position-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate position information of the AIoT device; and sending, by the UE, part or all of the first information to a base station.
[0010] In a fifth aspect, a method for determining position information is provided, executed by an AIoT device, and includes: performing, by the AIoT device, a first operation, wherein the first operation is used to determine second information, and the second information is used to indicate position information of the AIoT device, and the first operation includes at least one of the following: communicating with a first device; determining proximity to the first device; and sending, to the first device or a core network device, device proximity information, wherein the device proximity information includes related information of the first device in proximity to the AIoT device.
[0011] In a sixth aspect, a device for determining position information is provided, and includes: a receiving module configured to receive first information sent by a first device, wherein the first information includes position-related information of an AIoT device; and a processing module configured to determine, according to the first information, second information, wherein the second information is used to indicate position information of the AIoT device.
[0012] In a seventh aspect, a device for determining position information is provided, and includes: a sending module configured to send first information to a second device; wherein the first information includes position-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate position information of the AIoT device.
[0013] In an eighth aspect, a device for determining location information is provided, comprising: a sending module configured to send first information to a core network device, wherein the first information comprises location-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate location information of the AIoT device.
[0014] In a ninth aspect, a device for determining location information is provided, comprising: a sending module configured to perform at least one of the following: send first information to a core network device, wherein the first information comprises location-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate location information of the AIoT device; and send part or all of the first information to a base station.
[0015] In a tenth aspect, a device for determining location information is provided, comprising: a processing module configured to perform a first operation, wherein the first operation is used to determine second information, and the second information is used to indicate location information of an AIoT device, and the first operation comprises at least one of the following: communicate with a first device; determine proximity to the first device; and send device proximity information to the first device or a core network device, wherein the device proximity information comprises related information of the first device in proximity to the AIoT device.
[0016] In an eleventh aspect, a device for determining location information is provided, wherein the device is configured to perform steps of the method according to the first aspect, or steps of the method according to the second aspect, or steps of the method according to the third aspect, or steps of the method according to the fourth aspect, or steps of the method according to the fifth aspect.
[0017] In a twelfth aspect, a communication device is provided, comprising a processor and a memory, wherein the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement steps of the method according to the first aspect, or steps of the method according to the second aspect.
[0018] In a thirteenth aspect, a communication device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive first information sent by a first device, wherein the first information comprises location-related information of an environment-enabled Internet of Things (AIoT) device, and the processor is configured to determine second information according to the first information, wherein the second information is used to indicate location information of the AIoT device; or the communication interface is configured to send first information to a second device, wherein the first information comprises location-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate location information of the AIoT device.
[0019] In a fourteenth aspect, a base station is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the method according to the third aspect.
[0020] In a fifteenth aspect, a base station is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send first information to a core network device, wherein the first information comprises location-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate location information of the AIoT device.
[0021] In a sixteenth aspect, a UE is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the method according to the fourth aspect.
[0022] In a seventeenth aspect, a UE is provided, comprising a processor and a communication interface, wherein the communication interface is configured to at least one of: send first information to a core network device, wherein the first information comprises location-related information of an AIoT device, and the first information is used to determine second information, and the second information is used to indicate location information of the AIoT device; and send part or all of the first information to a base station.
[0023] In an eighteenth aspect, an AIoT device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement steps of the method according to the fifth aspect.
[0024] In a nineteenth aspect, an AIoT device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a first operation, the first operation is used to determine second information, and the second information is used to indicate location information of the AIoT device, and the first operation comprises at least one of: communicating with a first device; determining proximity to the first device; and sending device proximity information to the first device or a core network device, wherein the device proximity information comprises related information of the first device in proximity to the AIoT device.
[0025] In a twentieth aspect, a readable storage medium is provided, the readable storage medium storing programs or instructions, the programs or instructions, when executed by a processor, implement steps of the method according to the first aspect, or implement steps of the method according to the second aspect, or implement steps of the method according to the third aspect, or implement steps of the method according to the fourth aspect, or implement steps of the method according to the fifth aspect.
[0026] In a twenty-first aspect, a wireless communication system is provided, including a first device, a second device and an AIoT device, the second device being operable to perform the steps of the method as described in the first aspect, the first device being operable to perform the steps of the method as described in the second aspect, or the steps of the method as described in the third aspect, or the steps of the method as described in the fourth aspect, the AIoT device being operable to perform the steps of the method as described in the fifth aspect.
[0027] In a twenty-second aspect, a chip is provided, including a processor and a communication interface, the communication interface and the processor being coupled, the processor being configured to run programs or instructions to implement the method as described in the first aspect, or implement the method as described in the second aspect, or implement the method as described in the third aspect, or implement the method as described in the fourth aspect, or implement the method as described in the fifth aspect.
[0028] In a twenty-third aspect, a computer program / program product is provided, stored in a storage medium, the computer program / program product being executed by at least one processor to implement the steps of the method as described in the first aspect, or implement the steps of the method as described in the second aspect, or implement the steps of the method as described in the third aspect, or implement the steps of the method as described in the fourth aspect, or implement the steps of the method as described in the fifth aspect.
[0029] In the embodiments of the present application, the first device can send first information to the second device, the first information including position-related information of the AIoT device, and the second device can determine the position information of the AIoT device according to the first information. In this way, when determining the position information of the AIoT device, the first device can first determine and report the position-related information of the AIoT device, and then the second device can indirectly determine the position information of the AIoT device according to the position-related information reported by the first device. Thus, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device. BRIEF DESCRIPTION OF DRAWINGS
[0030] FIG. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;
[0031] FIG. 2 is a schematic diagram of a communication scenario of an AIoT device according to an embodiment of the present application;
[0032] FIG. 3 is a schematic diagram of a communication scenario of an AIoT device according to an embodiment of the present application;
[0033] FIG. 4 is a schematic flowchart of a method for determining position information according to an embodiment of the present application;
[0034] FIG. 5 is a schematic diagram of a communication scenario of an AIoT device according to embodiments of the present application;
[0035] FIG. 6 is a schematic diagram of a communication scenario of an AIoT device according to embodiments of the present application;
[0036] FIG. 7 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0037] FIG. 8 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0038] FIG. 9 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0039] FIG. 10 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0040] FIG. 11 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0041] FIG. 12 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0042] FIG. 13 is a schematic flowchart of a method for determining location information according to embodiments of the present application;
[0043] FIG. 14 is a schematic structural diagram of a device for determining location information according to embodiments of the present application;
[0044] FIG. 15 is a schematic structural diagram of a device for determining location information according to embodiments of the present application;
[0045] FIG. 16 is a schematic structural diagram of a device for determining location information according to embodiments of the present application;
[0046] FIG. 17 is a schematic structural diagram of a device for determining location information according to embodiments of the present application;
[0047] FIG. 18 is a schematic structural diagram of a device for determining location information according to embodiments of the present application;
[0048] FIG. 19 is a schematic structural diagram of a communication device according to embodiments of the present application;
[0049] FIG. 20 is a schematic structural diagram of a terminal according to embodiments of the present application;
[0050] FIG. 21 is a schematic structural diagram of a network-side device according to embodiments of the present application. DETAILED DESCRIPTION
[0051] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art are within the scope of the present application.
[0052] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second" are generally a class, and are not limited to the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.
[0053] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of specific information, operation to be performed or request result, etc. in the sent indication; the indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operation to be performed or the request result according to the judgment result.
[0054] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for the purpose of example, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.
[0055] FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, and is not limited to a particular technical terminology, provided that the same technical effect is achieved. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.
[0056] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.
[0057] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation in this regard. It can be understood that the above function modules can be network elements in a hardware device, software function modules running on a dedicated hardware, or virtualized function modules instantiated on a platform (for example, a cloud platform).
[0058] FIG. 2 shows a schematic diagram of a communication scenario to which embodiments of the present application can be applied.
[0059] The communication scenario shown in FIG. 2 includes a base station (which can be represented as BS (Base Station) or AIoT BS) 21 and an AIoT device (AIoT device) 22. The base station 21 and the small base station are co-located. In communication, the base station 21 can send R2D (Reader TO Device) messages to the AIoT device 22, and the AIoT device 22 performs backscattering, that is, D2R (Device TO Reader) message transmission to the base station 21.
[0060] FIG. 3 shows a schematic diagram of a communication scenario to which embodiments of the present application can be applied.
[0061] The communication scenario shown in FIG. 3 includes a base station (which can be represented as BS or AIoT BS) 21, an intermediate node 31 and an AIoT device 22, the base station 21 and the large base station are co-located, and the UE indoors can serve as an intermediate node. In communication, the base station 21 can control the UE through air interface signaling, the UE sends R2D messages to the AIoT device 22, the AIoT device 22 performs backscattering, that is, D2R message transmission to the UE, and then the UE transfers the response of the AIoT device 22 to the base station 21 through the air interface.
[0062] The position information determination method and the communication device provided by the embodiments of the present application will be described in detail below in combination with the drawings and some embodiments and their application scenarios.
[0063] As shown in FIG. 4, the present application provides a position information determination method 400, which can be executed by a second device, in other words, the position information determination method can be executed by software or hardware installed in the second device, and the position information determination method includes the following steps.
[0064] S402: The second device receives first information sent by the first device, and the first information includes position related information of an environment-enabled AIoT device.
[0065] When the position information of the AIoT device needs to be determined, the first device can send first information to the second device, and the second device can receive the first information sent by the first device. The first information includes position-related information of the AIoT device, which can be information related to the relative position of the AIoT device, or information related to the absolute position of the AIoT device, which is not limited here. Optionally, the first device can be represented as a reader or a reader-writer (Reader), and accordingly, the AIoT device can be represented as a tag.
[0066] S404: The second device determines second information according to the first information, and the second information is used to indicate the position information of the AIoT device.
[0067] After receiving the first information, the second device can determine the second information according to the first information, and the second information is used to indicate the position information of the AIoT device. For example, the first information can be analyzed, and the second information can be determined according to the analysis result. For another example, in the case that the second device receives a plurality of first information sent by a plurality of first devices, the second device can count the plurality of first information, and determine the second information according to the counting result. The position information of the AIoT device indicated by the second information can be the absolute position information of the AIoT device, or the relative position information of the AIoT device, which is not limited here.
[0068] In this way, when the position information of the AIoT device is determined, the position-related information of the AIoT device can be determined and reported by other devices (i.e., the first device) first, and then the position information of the AIoT device can be indirectly determined by the second device according to the position-related information reported by the other devices. In this way, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0069] In some embodiments, the position-related information of the AIoT device can include at least one of the following (a1) to (a5):
[0070] (a1) An identifier of the first device.
[0071] The identifier of the first device can be represented as a Reader identifier, which can be used to identify the first device adjacent to the AIoT device.
[0072] Optionally, if the first device is a UE, the identifier of the first device is an identifier of the UE adjacent to the AIoT device. If the first device is a base station, the identifier of the first device can include at least one of an identifier of a UE and an identifier of a base station, and the UE and the base station are adjacent to the AIoT device.
[0073] (a2) Position information of the first device.
[0074] The location information of the first device can be absolute location information or relative location information of the first device.
[0075] Optionally, if the first device is a UE, the location information of the first device is location information of the UE, which is proximate to the AIoT device. If the first device is a base station, the location information of the first device can include at least one of location information of a UE and location information of the base station, which are proximate to the AIoT device. Optionally, the location information of the base station can be represented by a cell identity.
[0076] (a3) an indication that the first device is proximate to the AIoT device.
[0077] Optionally, in some embodiments, the indication of the proximity can be used to indicate at least one of:
[0078] proximity to the AIoT device;
[0079] likelihood or confidence of the proximity to the AIoT device.
[0080] wherein the indication of the likelihood or confidence of the proximity to the AIoT device can include at least one of:
[0081] Hard value: indicating ‘proximity’ by ‘0 / 1’, where ‘0’ represents ‘far’ and ‘1’ represents ‘near’, or, ‘1’ represents ‘far’ and ‘0’ represents ‘near’;
[0082] Soft value: indicating ‘proximity’ by a value in the range of 0-1 (e.g. 0, 0.1, 0.2, … 0.9, 1), where a larger value represents a higher likelihood, where ‘0’ represents ‘far’ and ‘1’ represents ‘near’, or, ‘1’ represents ‘far’ and ‘0’ represents ‘near’.
[0083] (a4) an indication that the first device is associated with the AIoT device.
[0084] such as an indication that the first device is deployed in association with the AIoT device.
[0085] (a5) a measurement result of the AIoT device by the first device.
[0086] The measurement result here can be a measurement result of a signal of the AIoT device received by the first device when the first device communicates with the AIoT device. Optionally, in some embodiments, the measurement result can include at least one of the following (b1) and (b5):
[0087] (b1) signal strength of the AIoT device detected by the first device.
[0088] Here, the signal strength is the unadjusted signal strength detected by the first device.
[0089] (b2) adjusted signal strength of the AIoT device detected by the first device.
[0090] Here, the signal strength is the adjusted signal strength of the signal strength detected in (b1). The adjusted signal strength can be, for example, the strength after removing the return loss or amplification gain of the AIoT device.
[0091] (b3) path loss between the first device and the AIoT device.
[0092] Here, the path loss can be the path loss of D2R, or the path loss of R2D, or the path loss of D2R and R2D. For example, the path loss is the transmission power of the first device minus the received AIoT device signal strength, or the path loss after removing the return loss or amplification gain of the AIoT device.
[0093] Since the path loss parameter has comparability, the greater the path loss, the farther the distance between the first device and the AIoT device, therefore, by reporting the path loss to the second device, the second device can determine the distance between the first device and the AIoT device, so as to accurately obtain the position information of the AIoT.
[0094] (b4) distance between the first device and the AIoT device.
[0095] Here, the distance unit can be meters, for example, the distance between the first device and the AIoT device is x meters, and x is a positive number.
[0096] (b5) first time difference, the first time difference includes the difference between the receiving time and the sending time of the first device.
[0097] Here, the first time difference can be represented as the difference (Rx-Tx time difference) between the receiving time Rx time and the sending time Tx time of the first device. Wherein, the Rx time of the first device is the time when the first device receives the D2R signal of the AIoT device, and the Tx time of the first device is the time when the first device sends the R2D signal. The signal sent by the first device is the signal sent by the first device to the AIoT device. The signal received by the first device is the signal sent by the AIoT device to the first device. The signal sent by the AIoT device can be the response signal of the signal sent by the first device to the AIoT device.
[0098] Optionally, the first time difference can also be a result of the Rx-Tx time difference of the first device minus the Rx-Tx time difference of the AIoT device. Wherein, the Rx time of the first device is the time when the first device receives the D2R signal of the AIoT device, and the Tx time of the first device is the time when the first device sends the R2D signal. The Rx time of the AIoT device is the time when the AIoT device receives the R2D signal of the first device, and the Tx time of the AIoT device is the time when the AIoT device sends the D2R signal. Optionally, the Rx-Tx time difference of the AIoT device can be pre-configured or defined, such as being indicated by a control command as a certain fixed time.
[0099] In the embodiments of the present application, the first information received by the second device can be the first information sent by one first device, or the first information sent by multiple first devices. That is, the second device receiving the first information sent by the first device can include: the second device receiving multiple first information sent by multiple first devices. Correspondingly, when determining the second information, the second device can determine the second information according to the first information sent by one first device, or determine the second information according to the multiple first information sent by multiple first devices. In some embodiments, the second information determined by the second device can include at least one of the following (c1) to (c4):
[0100] (c1) Device identification, used to indicate one or more first devices adjacent or associated with the AIoT device.
[0101] The device identification can be represented as a Reader identification. In some embodiments, the one or more first devices adjacent or associated with the AIoT device includes at least one of the following:
[0102] The latest one or more first devices adjacent to the AIoT device (the latest reader or the latest readers); in this case, the device identification can be one device identification or multiple device identifications, used to indicate one device adjacent to the AIoT device or multiple devices adjacent to the AIoT device at the same time;
[0103] The nearest one or more first devices to the AIoT device (the nearest Reader);
[0104] one or more first devices that are in proximity to the AIoT device within a specified time period; if there are multiple first devices, the multiple first devices can be in proximity to the AIoT device at the same time or in sequence; optionally, for the multiple first devices that are in proximity to the AIoT device in sequence, the multiple first devices can be sorted in the order of time, which can help determine the historical position of the AIoT device; for the multiple first devices that are in proximity to the AIoT device at the same time, it can help indicate the presence of intermediate nodes (such as UE readers) or multiple devices in a transceiver separation scenario;
[0105] one or more first devices associated with the AIoT device; wherein the AIoT device is in proximity to the associated one or more first devices; for example, the AIoT device and the first device can be associated with deployment, and both are fixed or moved together, but maintain a proximity relationship.
[0106] It should be noted that the device identifier is used to indicate the position information of the AIoT device, which can be relative positioning relative to the first device, that is, the positioning of the AIoT device by the device identifier is relative positioning. For a network deployment where the first device is fixed, this method is relatively simple. Alternatively, the AIoT device is associated with the first device, so that even if the first device and the AIoT device are mobile, the associated first device is suitable for indicating the position information of the AIoT device.
[0107] (c2) first position information for indicating geographical position information (or absolute position information) of the AIoT device.
[0108] In some embodiments, the first position information can include at least one of the following:
[0109] position information of one or more first devices in proximity to or associated with the AIoT device; the one or more first devices in proximity to or associated with the AIoT device can refer to the description in (c1) above, which will not be repeated here;
[0110] Position information determined according to the position information of one or more first devices in proximity to or associated with the AIoT device, for example, the center position of multiple first devices in proximity to the AIoT device can be taken as the position information of the AIoT device, and taking the example that the AIoT device is in proximity to two first devices, the position information of the AIoT device can be the midpoint of the positions of the two first devices.
[0111] It should be noted that the first position information is used to indicate the position information of the AIoT device, and the position information is absolute position information, that is, the positioning of the AIoT device by the first position information is absolute positioning. Such absolute positioning is obtained based on the position of the first device. For the case where the first device moves and the AIoT device is stationary, or the case where the first device and the AIoT device are both stationary, the method can accurately obtain the position information of the AIoT device.
[0112] (c3) movement information of the device, used to indicate that one or more first devices adjacent or associated with the AIoT device are stationary, mobile, located indoors, or located outdoors.
[0113] For example, if the first device is stationary or indoor, the AIoT device can be relatively positioned based on the position of the first device. If the first device is mobile, the position information of the AIoT device can be represented based on the current absolute position, such as the geographic position, of the first device.
[0114] (c4) valid time, used to indicate the valid time of the position information of the AIoT device.
[0115] The valid time can be x seconds, x minutes, x hours, or x days, etc., which is not specifically limited here. Within the valid time, the position information of the AIoT device is valid, and after the valid time is exceeded, the position information of the AIoT device is invalid. For example, considering the movement of the first device and the AIoT device, the position information of the AIoT device needs a valid time, from the time when the position information of the AIoT device is obtained, within the valid time, the position information of the AIoT device is valid, and after the valid time is exceeded, the position information of the AIoT device is invalid.
[0116] In some embodiments, the second device can receive a plurality of first information sent by a plurality of first devices, and in this case, the second device determines the position information of the AIoT device according to the first information, which can include:
[0117] The second device determines a target device from the plurality of first devices according to the plurality of first information sent by the plurality of first devices;
[0118] The second device determines the second information according to the target device.
[0119] The target device can be a certain device in the plurality of first devices. In some embodiments, the target device can satisfy at least one of the following:
[0120] The distance to the AIoT device is the shortest;
[0121] The path loss to the AIoT device is the smallest;
[0122] The first time difference of the target device is the smallest;
[0123] the signal strength of the detected AIoT device is the maximum;
[0124] the adjusted signal strength of the detected AIoT device is the maximum.
[0125] The distance, the path loss, the first time difference, the signal strength, and the adjusted signal strength here can refer to the related descriptions of the measurement result of the first device above, which will not be repeated here. In the case where the target device satisfies at least one of the above conditions, the target device is the device that is closest to the AIoT device among the plurality of first devices. The second information determined by the target device can include at least one of an identifier of the target device, geographic location information of the target device, movement information of the target device, and a valid time.
[0126] In this way, in the case where the second device receives the first information of the plurality of first devices, i.e., in the case where the AIoT device is adjacent to the plurality of first devices, since the second device can select the target device that is closest to the AIoT device from the plurality of first devices and determine the location information of the AIoT device according to the target device, the location information of the AIoT device can be determined more accurately.
[0127] In some embodiments, the second device can perform the following operations:
[0128] The second device sends first request information to the first device, and the first request information is used to request the first device to report the location-related information of the AIoT device.
[0129] Specifically, when it is necessary to determine the location information of the AIoT device, the second device can send the first request information to the first device to request the first device to report the location-related information of the AIoT device. After receiving the first request information, the first device can communicate with the AIoT device according to the first request information and generate the location-related information of the AIoT device, i.e., the first information, and then send the location-related information of the AIoT device to the second device.
[0130] In this way, since the first device will report the location-related information of the AIoT device, i.e., the first information, only in the case where the second device sends the first request information to the first device, i.e., in the case where the first device is configured to report the location-related information of the AIoT device, the signaling overhead can be saved.
[0131] In some embodiments, the first request information can include at least one of the following:
[0132] The reporting of the first information is used to report the first information. The first information can refer to the description of the first information above, which will not be repeated here.
[0133] The configuration information is used for the first device to determine the AIoT device adjacent to the first device.
[0134] Optionally, the configuration information can include at least one of the following (d1) to (d5):
[0135] (d1) The first signal strength threshold. In the case that the signal strength of the AIoT device detected by the first device or the adjusted signal strength of the detected AIoT device is greater than or equal to the first signal strength threshold, it is characterized that the first device is adjacent to the AIoT device.
[0136] For the first device, if the signal strength of the detected AIoT device exceeds the first signal strength threshold, it can be determined or reported that it is adjacent to the AIoT device. Alternatively, if the adjusted AIoT signal strength exceeds the first signal strength threshold, the AIoT signal strength or the adjusted AIoT signal strength is reported.
[0137] It should be noted that the AIoT signal strength detected by the first device and the adjusted AIoT signal strength are different. The detected AIoT signal strength is the signal strength actually measured by the first device. Considering that different first devices may have different transmit powers, the AIoT signal strength detected by different first devices is not comparable and cannot accurately determine the distance. The adjusted AIoT signal strength is the signal strength adjusted based on the detected AIoT signal strength. The adjusted AIoT signal strength facilitates the network side device to compare the reported values from different first devices, thereby comparing the distance between different first devices and the AIoT device.
[0138] (d2) The first path loss threshold. In the case that the path loss of the AIoT device detected by the first device is less than or equal to the first path loss threshold, it is characterized that the first device is adjacent to the AIoT device.
[0139] For the first device, if the path loss of the AIoT device detected by the first device is lower than the first path loss threshold, the first device determines or reports that it is adjacent to the AIoT device.
[0140] (d3) The AIoT signal strength adjustment parameter is used for the first device to adjust the detected AIoT signal strength.
[0141] The AIoT signal strength adjustment parameter is used for reporting the AIoT signal strength detected by the first device after adjustment, so that the AIoT signal strengths reported by different devices for the same AIoT device are comparable. For example, the AIoT signal strength adjustment parameter indicates the reference transmission power of the first device. The transmission power of the first device can be different from the reference transmission power, and then the AIoT signal strength measured by the first device needs to be reported after adjustment according to the reference transmission power, so that the AIoT signal strengths reported by different devices can be compared.
[0142] (d4) The first distance threshold, in the case where the distance between the first device and the AIoT device detected by the first device is less than or equal to the first distance threshold, indicating that the first device is adjacent to the AIoT device.
[0143] For the first device, if the distance between the first device and the AIoT device detected by the first device is less than or equal to the first distance threshold, it is determined that the first device is adjacent to the AIoT device.
[0144] (d5) The first time difference threshold, in the case where the difference between the receiving time and the sending time of the first device is less than or equal to the first time difference threshold, indicating that the first device is adjacent to the AIoT device.
[0145] For the first device, if the difference between the receiving time and the sending time of the first device is less than or equal to the first time difference threshold, it is considered that the first device is adjacent to the AIoT device.
[0146] In some embodiments, the second device can perform the following operations:
[0147] The second device receives the device proximity information sent by the AIoT device, and the device proximity information includes related information of the first device adjacent to the AIoT device;
[0148] The second device determines the position information of the AIoT device according to the device proximity information and the first information.
[0149] Specifically, when the AIoT device communicates with other devices, it can determine whether it is adjacent to other devices according to the communication result. In the case of determining that it is adjacent to the first device, the AIoT device can report the device proximity information to the second device. After receiving the device proximity information, the second device can determine the position information of the AIoT device according to the device proximity information and the first information sent by the first device. Wherein, when reporting the device proximity information, if the AIoT device can directly communicate with the second device, the AIoT device can directly send the device proximity information to the second device, and if the AIoT device cannot directly communicate with the second device, the AIoT device can first send the device proximity information to other devices, and then forward the device proximity information to the second device by the other devices.
[0150] In this way, since the second device can determine the position information of the AIoT device according to the device proximity information reported by the AIoT device, the AIoT device can be accurately located.
[0151] Optionally, the device proximity information reported by the AIoT device can include at least one of the following: an identifier of the first device, position information of the first device, an indication that the first device is adjacent to the AIoT device, an indication that the first device is associated with the AIoT device, and a measurement result of the AIoT device on the first device. The measurement result of the AIoT device on the first device can include at least one of the following:
[0152] a signal strength of the first device detected by the AIoT device;
[0153] an adjusted signal strength of the first device detected by the AIoT device;
[0154] a path loss between the AIoT device and the first device;
[0155] a distance between the AIoT device and the first device;
[0156] a difference between a transmission time and a reception time of the AIoT device.
[0157] The above measurement results can be explained in the same way as the measurement result of the first device on the AIoT device, which will not be described in detail here.
[0158] In some embodiments, the AIoT device can also report according to the indication of the second device. For example, the AIoT device can report device proximity information to the second device upon receiving the first request information sent by the second device, thereby saving signaling overhead. The first request information can be explained in the same way as described above, and will not be described again here.
[0159] In some embodiments, the AIoT device in the above embodiments can be one AIoT device, which can be represented by an AIoT device identifier. It can be understood that the position information of the AIoT device determined by the second device can be indicated separately for each AIoT device.
[0160] In some embodiments, the AIoT device in each of the above embodiments can also be a group or a type of AIoT devices, which can be represented by an AIoT device grouping number or filtering information. It can be understood that the position information of the AIoT device determined by the second device can be indicated per group of AIoT devices or per type of AIoT devices. For example, a group of AIoT devices is deployed in a specific area, and the group of AIoT devices is adjacent to a certain Reader, then the proximity of the Reader to the group of AIoT devices can be used to represent the position information of the group of AIoT devices. In this way, by maintaining the position information of a group of AIoT devices or a type of AIoT devices, compared with maintaining the position information of a single AIoT device, it helps to save the storage space required by the position information.
[0161] The first device in each of the above embodiments includes a device adjacent to the AIoT device, and the second device includes a network side device. In some embodiments, the first device can be a base station, and correspondingly, the second device can be a core network device, or the first device is a UE, and the second device is a core network device, or the first device is a UE, and the second device is a base station. In some embodiments:
[0162] The core network device can include an AMF or an AF;
[0163] The base station includes a base station responsible for receiving and transmitting (i.e., the base station receiving the D2R signal sent by the AIoT device and the base station sending the R2D signal to the AIoT device are the same base station), or a base station responsible for receiving (such as a base station responsible for receiving the D2R signal sent by the AIoT in a split architecture), or a base station responsible for transmitting (such as a base station responsible for sending the R2D signal to the AIoT device in a split architecture);
[0164] The UE includes a UE responsible for receiving and transmitting (i.e., the UE receiving the D2R signal sent by the AIoT device and the UE sending the R2D signal to the AIoT device are the same UE), or a UE responsible for receiving (such as a UE responsible for receiving the D2R signal sent by the AIoT in a split architecture), or a UE responsible for transmitting (such as a UE responsible for sending the R2D signal to the AIoT device in a split architecture).
[0165] Taking the communication scenarios shown in FIG. 2, FIG. 3, FIG. 5 and FIG. 6 as examples.
[0166] In the communication scenario shown in FIG. 2, the Reader adjacent to the AIoT device is a base station, the first device can be a base station, and the base station is responsible for receiving and transmitting.
[0167] In the communication scenario shown in FIG. 3, the Reader adjacent to the AIoT device is at least one of a base station and an intermediate node (such as a UE), and the first device can be a base station responsible for receiving and transmitting, or the first device is an intermediate node responsible for receiving and transmitting.
[0168] In the communication scenario shown in FIG. 5, the Reader adjacent to the AIoT device is at least one of R1 and R2, and the first device can be at least one of R1 and R2. Among them, R1 is a Reader transmitting a R2D signal, and R2 is a Reader receiving a D2R signal.
[0169] In the communication scenario shown in FIG. 6, R1 is a UE Reader transmitting a R2D signal, and R2 is a UE Reader receiving a D2R signal, and R1 and R2 communicate with a BS. The Reader adjacent to the AIoT device can be at least one of the BS, R1 and R2, and the first device can be at least one of the BS, R1 and R2. Among them:
[0170] In the case where the first device is R1, that is, the UE Reader transmitting a R2D signal is taken as the Reader adjacent to the AIoT device, in order to make the signal strength of the CW2D or R2D signal reaching the AIoT device large enough, the AIoT device should be as close as possible to the UE Reader transmitting a R2D signal in the communication scenario shown in FIG. 6. Therefore, taking the UE Reader transmitting a R2D signal as the adjacent Reader can help to select a suitable Reader responsible for transmitting a R2D signal.
[0171] In the case where the first device is R2, that is, the UE Reader receiving a D2R signal is taken as the Reader adjacent to the AIoT device, it can be convenient for the UE Reader receiving a D2R signal to receive the signal of the AIoT device for distance judgment, so as to determine whether the UE Reader is adjacent to the AIoT device.
[0172] In the case where the first device includes R1 and R2, that is, the UE Reader transmitting a R2D signal and the UE Reader receiving a D2R signal are taken as the Readers adjacent to the AIoT device, the adjacent Readers of the AIoT device include multiple Readers communicating with the AIoT device, which can help to continue communication with multiple Readers adjacent to the AIoT device in the future.
[0173] In the case where the first device includes at least one of R1 and R2 and the BS, i.e., at least one of the UE Reader that is about to transmit the R2D signal and the UE Reader that receives the D2R signal and the BS as the Reader that is adjacent to the AIoT device, the adjacent Reader of the AIoT device contains a plurality of Readers that communicate with the AIoT device, which can help the AIoT device to continue to communicate with the plurality of Readers adjacent to the AIoT device in the future.
[0174] In some embodiments, in the case where the second device includes the base station and the first device includes the UE, the method can further include the following steps:
[0175] The second device sends third information to the core network device. The third information can include at least one of the following:
[0176] The identity of the second device;
[0177] The location information of the second device;
[0178] The first information.
[0179] That is, in the case where the second device includes the base station and the first device includes the UE, the second device can report at least one of the first information, the identity of the second device, and the location information of the second device to the core network device, so that the core network device determines the location information of the AIoT device according to these information.
[0180] In some embodiments, in the case where the second device includes the base station and the first device includes the UE, the method can further include the following steps:
[0181] The second device receives second request information sent by the core network device, and the second request information is used to request the second device to report the location-related information of the AIoT device.
[0182] The second request information includes part or all of the content in the first request information. In the case where the second device receives the second request information sent by the core network device, the second device can send the third information to the core network device. In this way, since the second device reports the location-related information of the AIoT device, i.e., the third information, only in the case where the core network device sends the second request information to the second device, i.e., the second device is configured to report the location-related information of the AIoT device, the signaling overhead can be saved.
[0183] In the embodiments of the present application, the second device can receive the first information sent by the first device, the first information comprising the position related information of the AIoT device, and the second device determines the position information of the AIoT device according to the first information. In this way, when determining the position information of the AIoT device, the position related information of the AIoT device can be determined and reported by other devices first, and then the position information of the AIoT device can be indirectly determined by the second device according to the position related information reported by other devices. Thus, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0184] As shown in FIG. 7, the embodiments of the present application provide a position information determination method 700, which can be executed by the first device, in other words, the position information determination method can be executed by the software or hardware installed in the first device, and the position information determination method comprises the following steps.
[0185] S702: The first device sends first information to the second device, wherein the first information comprises position related information of the AIoT device, and the first information is used to determine second information, and the second information is used to indicate the position information of the AIoT device.
[0186] When it is necessary to determine the position information of the AIoT device, the first device can send the first information to the second device. The first information comprises the position related information of the AIoT device, which can be information related to the relative position of the AIoT device or information related to the absolute position of the AIoT device, which is not limited here. The first information can be used to determine the second information, and the second information is used to indicate the position information of the AIoT device, which can be used by the second device to determine the position information of the AIoT device, and the position information of the AIoT device can be the relative position information or the absolute position information of the AIoT device, which is not limited here. Optionally, the first device can be represented as a reader or a reader-writer (Reader), and correspondingly, the AIoT device can be represented as a tag.
[0187] In this way, since when determining the position information of the AIoT device, the first device can report the position related information of the AIoT device to the second device, and then the second device indirectly determines the position information of the AIoT device according to the position related information reported by the first device, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0188] In some embodiments, the above-mentioned position related information can comprise at least one of the following:
[0189] an identifier of the first device;
[0190] location information of the first device;
[0191] an indication that the first device is proximate to the AIoT device;
[0192] an indication that the first device is associated with the AIoT device;
[0193] a measurement result of the AIoT device by the first device;
[0194] The measurement result of the AIoT device by the first device can include at least one of the following:
[0195] a signal strength of the AIoT device detected by the first device;
[0196] an adjusted signal strength of the AIoT device detected by the first device;
[0197] a path loss of the AIoT device by the first device;
[0198] a distance of the AIoT device by the first device;
[0199] a first time difference, the first time difference including a difference between a receiving time and a sending time of the first device.
[0200] The above information can be explained with reference to the explanation of the location-related information in the embodiment shown in FIG. 4, and will not be described in detail here.
[0201] Optionally, in some embodiments, the following steps can also be included:
[0202] The first device receives first request information sent by the second device, the first request information being used to request the first device to report the location-related information of the AIoT device.
[0203] Specifically, when it is necessary to determine the location information of the AIoT device, the second device can send first request information to the first device to request the first device to report the location-related information of the AIoT device. After receiving the first request information, the first device can communicate with the AIoT device according to the first request information and generate the location-related information of the AIoT device, i.e., the first information, and then send the location-related information of the AIoT device to the second device.
[0204] In this way, since the first device reports the location-related information of the AIoT device, i.e., the first information, only when the second device sends the first request information to the first device, i.e., when the first device is configured to report the location-related information of the AIoT device, the signaling overhead can be saved.
[0205] In some embodiments, the first request information can include at least one of the following:
[0206] a reporting indication of the first information, used to indicate reporting of the first information, which can refer to the above description of the first information and will not be described again here;
[0207] configuration information, used by the first device to determine AIoT devices adjacent to the first device.
[0208] Optionally, the configuration information can include at least one of the following:
[0209] a first signal strength threshold, in a case where a signal strength of the AIoT device detected by the first device or an adjusted signal strength of the signal strength is greater than or equal to the first signal strength threshold, indicating that the first device is adjacent to the AIoT device;
[0210] a first path loss threshold, in a case where a path loss of the AIoT device detected by the first device is less than or equal to the first path loss threshold, indicating that the first device is adjacent to the AIoT device;
[0211] an AIoT signal strength adjustment parameter, used to adjust the AIoT signal strength detected by the first device;
[0212] a first distance threshold, in a case where a distance of the AIoT device detected by the first device is less than or equal to the first distance threshold, indicating that the first device is adjacent to the AIoT device;
[0213] a first time difference threshold, in a case where a difference between a receiving time and a sending time of the first device is less than or equal to the first time difference threshold, indicating that the first device is adjacent to the AIoT device.
[0214] The above description of each configuration information can refer to the description of the configuration information in the embodiment shown in FIG. 4, which will not be described in detail here.
[0215] In the above embodiments, the first device includes a device adjacent to the AIoT device, and the second device includes a network side device.
[0216] In some embodiments, the first device can be a base station, and correspondingly, the second device can be a core network device, or the first device is a UE, the second device is a core network device, or the first device is a UE, and the second device is a base station. In some embodiments:
[0217] The core network device can include an AMF or an AF;
[0218] The base station includes a base station responsible for receiving and transmitting (i.e., the base station receiving the D2R signal sent by the AIoT device and the base station sending the R2D signal to the AIoT device are the same base station), or a base station responsible for receiving (such as a base station responsible for receiving the D2R signal sent by the AIoT in a split architecture), or a base station responsible for transmitting (such as a base station responsible for sending the R2D signal to the AIoT device in a split architecture);
[0219] The UE includes a UE responsible for receiving and transmitting (i.e., the UE receiving the D2R signal sent by the AIoT device and the UE sending the R2D signal to the AIoT device are the same UE), or a UE responsible for receiving (such as a UE responsible for receiving the D2R signal sent by the AIoT in a split architecture), or a UE responsible for transmitting (such as a UE responsible for sending the R2D signal to the AIoT device in a split architecture).
[0220] In some embodiments, in the case where the second device includes a core network device and the first device includes a base station, the following steps can also be included:
[0221] The first device receives fourth information sent by the UE, and the fourth information includes information related to the proximity of the UE to the AIoT device;
[0222] The first information further includes the fourth information.
[0223] Specifically, when the UE determines the proximity to the AIoT device, the UE can send the information related to the proximity, i.e., the fourth information, to the first device. After receiving the fourth information, the first device can send the fourth information to the second device in the first information. In this way, the second device can determine the location information of the AIoT device according to the information related to the proximity of the UE to the AIoT device, so as to accurately locate the position of the AIoT device.
[0224] In some embodiments, the information related to the proximity of the UE to the AIoT device can include at least one of the following:
[0225] An identifier of the UE;
[0226] Location information of the UE;
[0227] An indication of the proximity of the UE to the AIoT device;
[0228] An indication of the association of the UE to the AIoT device;
[0229] A measurement result of the AIoT device by the UE;
[0230] The measurement result of the AIoT device by the UE can include at least one of the following:
[0231] A signal strength of the AIoT device detected by the UE;
[0232] a signal strength of the AIoT device detected by the UE, an adjusted signal strength;
[0233] a path loss between the UE and the AIoT device;
[0234] a distance between the UE and the AIoT device;
[0235] a difference between a receiving time and a sending time of the UE.
[0236] The above explanations of the related information of the proximity between the UE and the AIoT device can refer to the explanations of the location related information of the AIoT device in the embodiment shown in FIG. 4 (replace the first device in the information of the location related information with the UE), which will not be described again here.
[0237] In some embodiments, in the case that the second device includes a core network device and the first device includes a base station, the method can further include the following steps:
[0238] The first device sends third request information to the UE, the third request information being used to request the UE to report the location related information of the AIoT device.
[0239] Specifically, when it is needed to determine the location information of the AIoT device, the first device can send the third request information to the UE to request the UE to report the location related information of the AIoT device. After receiving the third request information, the UE can communicate with the AIoT device according to the third request information and generate the location related information of the AIoT device, i.e., the fourth information, and then send the fourth information to the first device.
[0240] In this way, since the UE reports the location related information of the AIoT device, i.e., the fourth information, only when the first device sends the third request information to the UE, i.e., the UE is configured to report the location related information of the AIoT device, the signaling overhead can be saved.
[0241] In some embodiments, the above third request information can include part or all of the contents of the above first request information, which can refer to the above explanations of the first request information, and will not be described in detail here.
[0242] In some embodiments, in the case that the second device includes a core network device and the first device includes a base station, when the first device receives the fourth information sent by the UE, the first device can include:
[0243] The first device receives a plurality of fourth information sent by a plurality of UEs.
[0244] In this case, the method can further include:
[0245] The first device determines a target UE from the plurality of UEs according to the plurality of fourth information;
[0246] The first device determines fifth information according to the target UE, the fifth information being used to indicate the location information of the AIoT device;
[0247] The first information comprises the fifth information.
[0248] That is, the first device can determine the target UE from the plurality of UEs when receiving the plurality of fourth information sent by the plurality of UEs, and then determine the fifth information used to indicate the location information of the AIoT device according to the target UE, and send the first information carrying the fifth information to the core network device. In this way, the core network device can accurately obtain the location information of the AIoT device based on the fifth information.
[0249] In some embodiments, the target UE can satisfy at least one of the following:
[0250] The distance to the AIoT device is the shortest;
[0251] The path loss to the AIoT device is the smallest;
[0252] The difference between the receiving time and the sending time of the target UE is the smallest;
[0253] The detected signal strength of the AIoT device is the largest;
[0254] The adjusted signal strength of the detected signal strength of the AIoT device is the largest.
[0255] In some embodiments, in the case that the second device comprises a core network device and the first device comprises a UE, or in the case that the second device comprises a base station and the first device comprises a UE, the method can further comprise the following steps:
[0256] The first device performs the AIoT service according to the first request information;
[0257] The first device determines whether it is adjacent to the AIoT device;
[0258] The first device generates the first information when it is determined that it is adjacent to the AIoT device.
[0259] The first request information is sent by the second device to the first device, and is used to request the first device to report the location related information of the AIoT device. The first device can perform the AIoT service according to the first request information after receiving the first request information. In some embodiments, the first device performing the AIoT service according to the first request information can comprise at least one of the following:
[0260] The first device communicates with the AIoT device;
[0261] The first device measures a signal transmitted by the AIoT device to obtain a signal strength of the AIoT device;
[0262] The first device measures a signal transmitted by the AIoT device to obtain a distance between the AIoT device and the first device;
[0263] The first device receives measurement assistance information transmitted by the AIoT device, and the measurement assistance information can include at least one of a gain of a transmitting antenna of the AIoT device and a gain of a receiving antenna of the AIoT device;
[0264] The first device adjusts the detected signal strength of the AIoT device according to the first request information;
[0265] The first device obtains the distance between the AIoT device and the first device according to the first request information.
[0266] After the first device performs the AIoT service, the first device can determine whether the AIoT device is proximate according to a service execution result, and generate the first information in a case where it is determined that the AIoT device is proximate. The first device determining that the AIoT device is proximate can include at least one of the following:
[0267] The first device receives indication information transmitted by the AIoT device, and the indication information is used to indicate that the AIoT device is proximate to the first device. The AIoT device can communicate with different first devices in sequence, and the AIoT device can indicate to the first device that the AIoT device is proximate to the first device, so that the first device determines that the AIoT device is proximate to the first device. This can help the AIoT device and the first device to have a consistent understanding of their proximity, and help the network to select a suitable first device to communicate with the AIoT device to schedule subsequent tasks;
[0268] The first device inventories the AIoT device;
[0269] The first device pages the AIoT device and receives a response of the AIoT device;
[0270] The first device receives an access request of the AIoT device;
[0271] The first device performs a read-write operation on the AIoT device;
[0272] The first device detects a signal transmitted by the AIoT device, and the signal can be, for example, a D2R preamble or a PDRCH;
[0273] The first device receives or successfully receives a D2R signal (such as a D2R preamble or PDRCH) and identifies the AIoT device; for example, the first device can identify the AIoT device based on the context of the D2R signal or communication;
[0274] The first device receives or successfully receives at least one D2R signal (such as a preamble); it can be understood that the at least one D2R signal is sent by the AIoT device, and the D2R signal is a response to the signal sent by the first device to the AIoT device, and accordingly, the first device can confirm the proximity to the AIoT device;
[0275] The first device successfully receives the payload sent by the AIoT device;
[0276] The first device detects that the signal strength sent by the AIoT device exceeds a first signal strength threshold, which can be configured by the core network device through the first request information configured to the UE, or the first signal strength threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0277] The first device detects that the signal strength sent by the AIoT device exceeds the first signal strength threshold after being adjusted according to the AIoT signal strength adjustment parameter;
[0278] The distance between the first device and the AIoT device does not exceed a first distance threshold; the first distance threshold can be configured by the core network device through the first request information configured to the UE, or the first distance threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0279] The first device detects that the signal strength sent by the AIoT device exceeds the first signal strength threshold after being adjusted according to the AIoT signal strength adjustment parameter;
[0280] The difference between the receiving time and the sending time of the first device does not exceed a first time difference threshold; the first time difference threshold can be configured by the core network device through the first request information configured to the UE, or the first time difference threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device).
[0281] In the embodiments of the present application, when determining the position information of the AIoT device, the first device can report the position related information of the AIoT device to the second device, and then the second device can indirectly determine the position information of the AIoT device according to the position related information reported by the first device. Therefore, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0282] As shown in FIG. 8, the present application provides a position information determination method 800, which can be executed by a base station, in other words, the position information determination method can be executed by software or hardware installed in the base station. The position information determination method includes the following steps.
[0283] S802: The base station sends first information to the core network device, the first information including position related information of the AIoT device, the first information being used for determining second information, the second information being used for indicating position information of the AIoT device.
[0284] The base station here can be a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting. In the case where it is necessary to determine the position information of the AIoT device, the base station can send first information to the core network device. The first information includes position related information of the AIoT device, which can be information related to the relative position of the AIoT device, or information related to the absolute position of the AIoT device, which is not specifically limited here. The first information can be used to determine the second information, specifically, it can be used for the core network device to determine the second information. The second information is used to indicate the position information of the AIoT device, which can be the relative position information of the AIoT device, or the absolute position information of the AIoT device, which is not specifically limited here. Optionally, the base station can be represented as Reader, and the AIoT device can be represented as tag accordingly.
[0285] In this way, when determining the position information of the AIoT device, the base station can report the position related information of the AIoT device to the core network device, and then the core network device can indirectly determine the position information of the AIoT device according to the position related information reported by the base station. Therefore, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0286] In some embodiments, the above-mentioned position related information can include at least one of the following:
[0287] Information related to the proximity of the UE to the AIoT device;
[0288] An identifier of the base station;
[0289] The location information of the base station, which is optionally represented by a cell identity.
[0290] In the case that the first information comprises the information related to the proximity between the UE and the AIoT device, the location of the AIoT device is represented by the proximity between the UE and the AIoT device, which makes the representation of the location more accurate. Here, the UE can be a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
[0291] The identity of the base station can represent the proximity between the base station and the AIoT device. Since the location of the base station is generally fixed, the location information of the AIoT device is represented by the identity of the base station, i.e., the location of the AIoT device is represented by the proximity between the AIoT device and the base station, which makes the representation of the location more accurate.
[0292] The location information of the base station can represent the geographical location information or the absolute location information of the AIoT device. Since the location of the base station is generally fixed, the location information of the AIoT device is represented by the location information of the base station, which makes the representation of the location information of the AIoT device more accurate.
[0293] In some embodiments, the information related to the proximity between the UE and the AIoT device can be determined by the UE and sent to the base station, and the following operations can be performed by the base station:
[0294] The base station receives the information related to the proximity between the UE and the AIoT device sent by the UE.
[0295] Specifically, the UE can communicate with the AIoT device, determine and generate the information related to the proximity between the UE and the AIoT device according to the communication result, and then send the information to the base station. The base station can receive the information related to the proximity between the UE and the AIoT device sent by the UE, and then report at least one of the identity of the base station, the location information of the base station, and the information related to the proximity between the UE and the AIoT device (i.e., the first information) to the core network device, so that the core network device can determine the location information of the AIoT device according to the information reported by the base station.
[0296] In some embodiments, the information related to the proximity between the UE and the AIoT device described above can be at least one of the following (e1) to (e5):
[0297] (e1) The identity of the UE.
[0298] (e2) The location information of the UE.
[0299] (e3) An indication of the proximity between the UE and the AIoT device.
[0300] In some embodiments, the indication that the UE is proximate to the AIoT device can be used to indicate at least one of:
[0301] Proximity to the AIoT device;
[0302] Likelihood or confidence of the proximity to the AIoT device.
[0303] Wherein the indication of the likelihood or confidence of the proximity to the AIoT device can include at least one of:
[0304] Hard value: indicating ‘proximity’ by ‘0 / 1’, where ‘0’ represents ‘far’ and ‘1’ represents ‘near’, or, ‘1’ represents ‘far’ and ‘0’ represents ‘near’;
[0305] Soft value: indicating ‘proximity’ by a value in the range of 0~1 (e.g. 0, 0.1, 0.2, … 0.9, 1), where a larger value represents a higher likelihood, where ‘0’ represents ‘far’ and ‘1’ represents ‘near’, or, ‘1’ represents ‘far’ and ‘0’ represents ‘near’.
[0306] (e4) An indication of the association of the UE to the AIoT device.
[0307] For example, an indication of the deployment of the UE in association with the AIoT device.
[0308] (e5) A measurement result of the AIoT device by the UE.
[0309] Here, the measurement result can be a measurement result of the AIoT device signal received by the UE when the UE communicates with the AIoT device. Optionally, in some embodiments, the measurement result of the AIoT device by the UE can include at least one of the following (f1) to (f5):
[0310] (f1) A signal strength of the AIoT device detected by the UE.
[0311] Here, the signal strength is the actual signal strength detected by the UE without adjustment.
[0312] (f2) An adjusted signal strength of the AIoT device detected by the UE.
[0313] Here, the signal strength is the adjusted signal strength of the signal strength detected in (f1). The adjusted signal strength can be, for example, the strength after removing the return loss or amplification gain of the AIoT device.
[0314] (f3) path loss of the UE to the AIoT device.
[0315] The path loss here can be the path loss of D2R, or the path loss of R2D, or the path loss of D2R and R2D. For example, the path loss is the transmission power of the UE minus the received signal strength of the AIoT device, or the path loss after removing the return loss or amplification gain of the AIoT device.
[0316] Since the path loss parameter has comparability, the greater the path loss, the farther the distance between the UE and the AIoT device, therefore, by reporting the path loss to the core network device through the base station, the core network device can determine the distance between the UE and the AIoT device, so as to accurately obtain the position information of the AIoT.
[0317] (f4) distance of the UE to the AIoT device.
[0318] The distance unit here can be meters, for example, the distance of the UE to the AIoT device is x meters, and x is a positive number.
[0319] (f5) difference between the receiving time and the sending time of the UE.
[0320] The difference here can be represented as the difference between the receiving time Rx time and the sending time Tx time of the UE (Rx-Tx time difference), wherein the Rx time of the UE is the time when the UE receives the D2R signal of the AIoT device, and the Tx time of the UE is the time when the UE sends the R2D signal. The signal sent by the UE is the signal sent by the UE to the AIoT device. The signal received by the UE is the signal sent by the AIoT device to the UE. The signal sent by the AIoT device can be a response signal of the signal sent by the UE to the AIoT device.
[0321] Optionally, the measurement result of the UE to the AIoT device can also include the result of the Rx-Tx time difference of the UE minus the Rx-Tx time difference of the AIoT device. Wherein the Rx time of the UE is the time when the UE receives the D2R signal of the AIoT device, and the Tx time of the UE is the time when the UE sends the R2D signal. The Rx time of the AIoT device is the time when the AIoT device receives the R2D signal of the UE, and the Tx time of the AIoT device is the time when the AIoT device sends the D2R signal. Optionally, the Rx-Tx time difference of the AIoT device can be pre-configured or defined, such as being indicated by a control command as a certain fixed time.
[0322] It should be noted that the base station can receive the information related to the proximity of the AIoT device sent by one UE, or can receive the information related to the proximity of the AIoT device sent by multiple UEs, and the one or more UEs are in proximity to the AIoT device. When the base station sends the first information to the core network device, the base station can send the information related to the proximity of the AIoT device received from the one or more UEs to the core network device, so that the core network device can accurately obtain the position information of the AIoT device.
[0323] Optionally, in some embodiments, if the base station receives the information related to the proximity of the AIoT device sent by multiple UEs, the base station can perform the following operations:
[0324] According to the information related to the proximity of the AIoT device sent by the multiple UEs, determine a target UE from the multiple UEs;
[0325] The base station determines the position information of the AIoT device according to the target UE.
[0326] The target UE can be a certain device in the multiple UEs. In some embodiments, the target UE can satisfy at least one of the following conditions:
[0327] The distance to the AIoT device is the shortest;
[0328] The path loss to the AIoT device is the smallest;
[0329] The difference between the receiving time and the sending time of the target UE is the smallest;
[0330] The signal strength of the detected AIoT device is the largest;
[0331] The adjusted signal strength of the detected AIoT device is the largest.
[0332] Here, the distance, path loss, difference between receiving time and sending time, signal strength, and adjusted signal strength can refer to the above description of the measurement results of the UE, which will not be repeated here. In the case where the target UE satisfies at least one of the above conditions, the target UE is the UE closest to the AIoT device in the multiple UEs. The position information of the AIoT device determined by the base station according to the target UE can include at least one of the identification of the target UE, the geographic position information of the target UE, the movement information of the target UE, and the validity time.
[0333] After determining the location information of the AIoT device according to the target UE, the base station can carry the location information in the first information and send it to the core network device. At this time, the relevant information of the UE adjacent to the AIoT device included in the first information can be the relevant information of the target UE adjacent to the AIoT device. In this way, in the case that the AIoT device is adjacent to multiple UEs, since the base station can select the target UE most adjacent to the AIoT device from the multiple UEs, and report the location information of the AIoT device to the core network device after determining the location information of the AIoT device according to the target UE, the core network device can more accurately determine the location information of the AIoT device.
[0334] In some embodiments, the base station can perform the following operations:
[0335] The base station receives the first request information sent by the core network device, and the first request information is used to request the base station to report the location related information of the AIoT device.
[0336] The base station sends part or all of the content of the first request information to the UE.
[0337] Specifically, when it is necessary to determine the location information of the AIoT device, the core network device can send the first request information to the base station to request the base station to report the location related information of the AIoT device. After receiving the first request information, the base station can send part or all of the information in the first request information to the UE to request the UE to report the location related information of the AIoT device. After receiving the request information sent by the base station, the UE can communicate with the AIoT device according to the request information and generate the location related information of the AIoT device, i.e., the relevant information of the UE adjacent to the AIoT device, and then send the relevant information adjacent to the AIoT device to the base station. After receiving the relevant information adjacent to the AIoT device sent by the UE, the base station can send at least one of the relevant information adjacent to the AIoT device, the identifier of the base station, and the location information of the base station to the core network device.
[0338] In this way, since the UE reports the location related information of the AIoT device, i.e., the relevant information of the UE adjacent to the AIoT device, only when the base station sends the request information to the UE, i.e., the UE is configured to report the location related information of the AIoT device, the signaling overhead can be saved.
[0339] In some embodiments, the first request information described above can include at least one of the following:
[0340] The reporting indication of the first information, used to indicate the reporting of the first information. The first information can refer to the description of the first information described above, which will not be described here again.
[0341] Configuration information, used by the UE to determine that the AIoT device is adjacent to the UE.
[0342] Optionally, the configuration information in the first request information can include at least one of the following (g1) to (g5):
[0343] (g1) A first signal strength threshold.
[0344] For the UE, if the detected signal strength of the AIoT device exceeds the first signal strength threshold, it can be determined or reported that the AIoT device is adjacent to the UE. Alternatively, if the adjusted AIoT signal strength exceeds the first signal strength threshold, the AIoT signal strength or the adjusted AIoT signal strength is reported.
[0345] It should be noted that the AIoT signal strength detected by the UE and the adjusted AIoT signal strength are different. The detected AIoT signal strength is the signal strength actually measured by the UE from the AIoT device. Considering that different UEs can have different transmit powers, the AIoT signal strength detected by different UEs is not comparable, and the distance cannot be accurately judged. The adjusted AIoT signal strength is the signal strength adjusted based on the detected AIoT signal strength. The adjusted AIoT signal strength facilitates the network side device to compare the reported values from different UEs, and thus compare the distance between different UEs and the AIoT device.
[0346] (g2) A first path loss threshold.
[0347] For the UE, if the path loss of the AIoT device detected by the UE is lower than the first path loss threshold, the UE determines or reports that the AIoT device is adjacent to the UE.
[0348] (g3) An AIoT signal strength adjustment parameter.
[0349] The AIoT signal strength adjustment parameter is used to adjust the AIoT signal strength detected by the UE for reporting, so that the AIoT signal strengths reported by different UEs for the same AIoT device are comparable. For example, the AIoT signal strength adjustment parameter indicates the reference transmit power of the UE. The transmit power of the UE can be different from the reference transmit power, and then the AIoT signal strength measured by the UE needs to be adjusted according to the reference transmit power for reporting, so that the AIoT signal strengths reported by different UEs can be compared.
[0350] (g4) A first distance threshold.
[0351] For the UE, if the distance between the UE and the AIoT device detected by the UE does not exceed the first distance threshold, it is determined that the AIoT device is adjacent to the UE.
[0352] (g5) a first time difference threshold.
[0353] For the UE, if the difference between the receiving time and the sending time of the UE does not exceed the first time difference threshold, the UE is considered to be adjacent to the AIoT device.
[0354] In the embodiments of the present application, since the base station can report the position related information of the AIoT device to the core network device when determining the position information of the AIoT device, and then the core network device indirectly determines the position information of the AIoT device according to the position related information reported by the base station, the different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0355] As shown in FIG. 9, the embodiments of the present application provide a position information determination method 900, which can be executed by the UE, in other words, the position information determination method can be executed by the software or hardware installed in the UE, and the position information determination method includes the following steps.
[0356] S902: The UE sends first information to the core network device, the first information including the position related information of the AIoT device, and the first information is used to determine second information, and the second information is used to indicate the position information of the AIoT device.
[0357] S904: The UE sends part or all of the content of the first information to the base station.
[0358] When it is necessary to determine the position information of the AIoT device, the UE can perform at least one of the above S902 and S904. Wherein, the UE can be represented as UE Reader, which can be specifically a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting, which is not specifically limited here.
[0359] In S902, the UE can send the first information to the core network device, and the first information includes the position related information of the AIoT device. The position related information can be information related to the relative position of the AIoT device, or information related to the absolute position of the AIoT device, which is not specifically limited here. The first information can be used by the core network device to determine the second information, and the second information is used to indicate the position information of the AIoT device, which can be the relative position information of the AIoT device, or the absolute position information of the AIoT device, which is not specifically limited here.
[0360] In this way, since the UE can report the location related information of the AIoT device to the core network device when determining the location information of the AIoT device, and then the core network device indirectly determines the location information of the AIoT device according to the location related information reported by the UE or the base station, the different communication scenarios of the AIoT device can be adapted, so that the location information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0361] In some embodiments, the first information sent by the UE to the core network device can include at least one of the following (h1) to (h5):
[0362] (h1) An identifier of the UE.
[0363] (h2) Location information of the UE.
[0364] (h3) An indication that the UE is adjacent to the AIoT device.
[0365] In some embodiments, the indication that the UE is adjacent to the AIoT device can be used to indicate at least one of the following:
[0366] Proximity / distance to the AIoT device;
[0367] Likelihood or confidence of proximity / distance to the AIoT device.
[0368] Wherein, the indication of the likelihood or confidence of proximity / distance to the AIoT device can include at least one of the following:
[0369] Hard value: indicating 'proximity / distance' by '0 / 1', wherein '0' represents 'far', '1' represents 'near', or '1' represents 'far', and '0' represents 'near';
[0370] Soft value: indicating 'proximity / distance' by a value in the range of 0-1 (such as 0, 0.1, 0.2, … 0.9, 1), and the larger the value, the higher the likelihood, wherein '0' represents 'far', '1' represents 'near', or '1' represents 'far', and '0' represents 'near'.
[0371] (h4) An indication that the UE is associated with the AIoT device.
[0372] (h5) Measurement result of the UE on the AIoT device.
[0373] The measurement result here can be a measurement result of the UE on a received AIoT device signal when the UE communicates with the AIoT device. Optionally, in some embodiments, the measurement result of the UE on the AIoT device can include at least one of the following (i1) to (i5):
[0374] (i1) A signal strength of the AIoT device detected by the UE.
[0375] The signal strength here is an actual detected signal strength of the UE without adjustment.
[0376] (i2) An adjusted signal strength of the AIoT device detected by the UE.
[0377] The signal strength here is an adjusted signal strength of the signal strength detected in (i1). The adjusted signal strength can be, for example, a strength after removing a return loss or an amplification gain of the AIoT device.
[0378] (i3) A path loss of the UE and the AIoT device.
[0379] The path loss here can be a path loss of D2R, or a path loss of R2D, or a path loss of D2R and R2D. For example, the path loss is a transmission power of the UE minus a received AIoT device signal strength, or a path loss after removing a return loss or an amplification gain of the AIoT device.
[0380] Since the path loss parameter has comparability, the greater the path loss, the farther the distance between the UE and the AIoT device, and thus, by reporting the path loss to the core network device, the core network device can determine the distance between the UE and the AIoT device, so as to accurately obtain the position information of the AIoT.
[0381] (i4) A distance of the UE and the AIoT device.
[0382] The distance unit here can be meters, for example, the distance of the UE and the AIoT device is x meters, and x is a positive number.
[0383] (i5) A difference between a receiving time and a sending time of the UE.
[0384] The difference value can be represented as a Rx-Tx time difference between a Rx time of the UE and a Tx time of the UE, where the Rx time of the UE is a time at which the UE receives the D2R signal from the AIoT device, and the Tx time of the UE is a time at which the UE transmits the R2D signal. The signal transmitted by the UE is a signal transmitted by the UE to the AIoT device. The signal received by the UE is a signal transmitted by the AIoT device to the UE. The signal transmitted by the AIoT device can be a response signal to the signal transmitted by the UE to the AIoT device.
[0385] Optionally, the measurement result of the UE on the AIoT device can further include a time measurement result of a Rx-Tx time difference of the UE minus a Rx-Tx time difference of the AIoT device. Where the Rx time of the UE is a time at which the UE receives the D2R signal from the AIoT device, and the Tx time of the UE is a time at which the UE transmits the R2D signal. The Rx time of the AIoT device is a time at which the AIoT device receives the R2D signal from the UE, and the Tx time of the AIoT device is a time at which the AIoT device transmits the D2R signal. Optionally, the Rx-Tx time difference of the AIoT device can be preconfigured or defined, such as being indicated by a control command as a certain fixed time.
[0386] In some embodiments, the UE can report the first information according to an indication of the core network device. Specifically, the UE can perform the following operations:
[0387] The UE receives first request information transmitted by the core network device, and the first request information is used to request the UE to report the location related information of the AIoT device;
[0388] The UE performs AIoT service according to the first request information;
[0389] The UE determines whether to be adjacent to the AIoT device;
[0390] The UE generates the first information in a case where it is determined that the UE is adjacent to the AIoT device.
[0391] Specifically, when it is needed to determine the location information of the AIoT device, the core network device can send first request information to the UE to request the UE to report the location related information of the AIoT device. After receiving the first request information, the UE can communicate with the AIoT device according to the first request information and generate the location related information (i.e., the first information) of the AIoT device, for example, the UE performs AIoT service according to the first request information, determines whether it is adjacent to the AIoT device, and generates the first information in the case of determining that it is adjacent to the AIoT device. After generating the first information, the UE can send the first information to the core network device, and the core network device determines the location information of the AIoT device according to the first information.
[0392] In this way, since the UE reports the location related information (i.e., the first information) of the AIoT device only in the case that the core network device sends the first request information to the UE, i.e., the UE is configured to report the location related information of the AIoT device, the signaling overhead can be saved.
[0393] In some embodiments, the first request information described above can include at least one of the following:
[0394] a report indication of the first information, which indicates to report the first information. The first information can refer to the description of the first information sent by the UE to the core network device, which will not be described again here.
[0395] configuration information, which is used by the UE to determine the AIoT device adjacent to the UE.
[0396] Optionally, the configuration information can include at least one of the following (j1) to (j5):
[0397] (j1) a first signal strength threshold.
[0398] For the UE, if the detected signal strength of the AIoT device exceeds the first signal strength threshold, it can be determined or reported that the UE is adjacent to the AIoT device. Alternatively, if the adjusted AIoT signal strength exceeds the first signal strength threshold, the AIoT signal strength or the adjusted AIoT signal strength is reported.
[0399] It should be noted that the AIoT signal strength detected by the UE and the adjusted AIoT signal strength are different. The detected AIoT signal strength is the signal strength actually measured by the UE of the AIoT device. Considering that different UEs may have different transmit powers, the AIoT signal strengths detected by different UEs are not comparable, and the distance cannot be accurately judged. The adjusted AIoT signal strength is the signal strength adjusted based on the detected AIoT signal strength. The adjusted AIoT signal strength facilitates the network side device to compare the reported values from different UEs, so as to compare the distance of different UEs from the AIoT device.
[0400] (j2) The first path loss threshold.
[0401] For the UE, if the UE detects that the path loss of the AIoT device is lower than the first path loss threshold, the UE determines or reports that the UE is adjacent to the AIoT device.
[0402] (j3) The AIoT signal strength adjustment parameter.
[0403] The AIoT signal strength adjustment parameter is used to adjust the AIoT signal strength detected by the UE for reporting, so that the AIoT signal strengths reported by different UEs for the same AIoT device are comparable. For example, the AIoT signal strength adjustment parameter indicates the reference transmit power of the UE. The transmit power of the UE may be different from the reference transmit power, and then the AIoT signal strength measured by the UE needs to be adjusted according to the reference transmit power for reporting, so that the AIoT signal strengths reported by different UEs can be compared.
[0404] (j4) The first distance threshold.
[0405] For the UE, if the UE detects that the distance from the AIoT device does not exceed the first distance threshold, the UE is determined to be adjacent to the AIoT device.
[0406] (j5) The first time difference threshold.
[0407] For the UE, if the difference between the receiving time and the sending time of the UE does not exceed the first time difference threshold, the UE is considered to be adjacent to the AIoT device.
[0408] After receiving the first request information, the UE can perform the AIoT service according to the first request information. In some embodiments, the UE performing the AIoT service according to the first request information can include at least one of the following:
[0409] The UE communicates with the AIoT device;
[0410] The UE measures the signal transmitted by the AIoT device to obtain the signal strength of the AIoT device;
[0411] The UE measures a signal transmitted by the AIoT device to obtain a distance between the UE and the AIoT device;
[0412] The UE receives measurement assistance information transmitted by the AIoT device, and the measurement assistance information can include at least one of a gain of a transmitting antenna of the AIoT device and a gain of a receiving antenna of the AIoT device;
[0413] The UE adjusts a signal strength of the detected AIoT device according to the first request information, for example, adjusts the signal strength of the detected AIoT device according to an AIoT signal strength adjustment parameter in the first request information;
[0414] The UE obtains the distance between the UE and the AIoT device according to the first request information.
[0415] After the UE performs the AIoT service according to the first request information, the UE can determine whether the UE is adjacent to the AIoT device according to a result of the AIoT service, and generate and report the first information to the core network device if it is determined that the UE is adjacent to the AIoT device. In this way, since the UE reports the first information to the core network device only if it is determined that the UE is adjacent to the AIoT device, signaling overhead can be saved.
[0416] In some embodiments, the UE determining that the UE is adjacent to the AIoT device can include at least one of the following:
[0417] The UE receives indication information transmitted by the AIoT device, and the indication information is used to indicate that the AIoT device is adjacent to the UE. The AIoT device can communicate with different UEs in sequence, and the AIoT device can indicate to the UE that the AIoT device is adjacent to the UE, so that the UE determines that the UE is adjacent to the AIoT device. In this way, the AIoT device and the UE can have a consistent understanding of their adjacent relationship, and the network can select a suitable UE to communicate with the AIoT device to schedule a subsequent task;
[0418] The UE inventories the AIoT device;
[0419] The UE pages the AIoT device and receives a response of the AIoT device;
[0420] The UE receives an access request of the AIoT device;
[0421] The UE performs a read-write operation on the AIoT device;
[0422] The above five UE determination methods for determining the proximity of the UE to the AIoT device based on the communication between the UE and the AIoT device can help the core network device determine the UE in proximity to the AIoT device, and the method is simple, which helps the core network device select a suitable UE Reader to communicate with the AIoT device.
[0423] The UE detects the signal transmitted by the AIoT device, which can be, for example, a D2R preamble or a PDRCH;
[0424] The UE receives or successfully receives the D2R signal (such as a D2R preamble or a PDRCH) and identifies the AIoT device; for example, the UE can identify the AIoT device based on the context of the D2R signal or communication;
[0425] The UE receives or successfully receives at least one D2R signal (such as a preamble); it can be understood that the at least one D2R signal transmitted by the AIoT device is a response to the signal transmitted by the UE to the AIoT device, and accordingly, the UE can confirm the proximity to the AIoT device;
[0426] The UE successfully receives the payload transmitted by the AIoT device;
[0427] The UE detects that the signal strength of the signal transmitted by the AIoT device exceeds a first signal strength threshold; the first signal strength threshold can be configured by the core network device to the UE through the first request information, or the first signal strength threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0428] The UE detects that the signal strength of the signal transmitted by the AIoT device exceeds the first signal strength threshold after being adjusted according to the AIoT signal strength adjustment parameter;
[0429] The distance between the UE and the AIoT device does not exceed a first distance threshold; the first distance threshold can be configured by the core network device to the UE through the first request information, or the first distance threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0430] The UE detects that the signal strength of the signal transmitted by the AIoT device exceeds the first signal strength threshold after being adjusted according to the AIoT signal strength adjustment parameter;
[0431] The difference between the receiving time and the sending time of the UE does not exceed a first time difference threshold; the first time difference threshold can be configured by the core network device to the UE through the first request information, or the first time difference threshold can also be determined by a protocol or by the UE (optionally, the UE can report the threshold to the core network device).
[0432] In S904 described above, the UE can send part or all of the content in the first information to the base station, that is, the UE can send the position related information of the AIoT device to the base station, which can be information related to the relative position of the AIoT device or information related to the absolute position of the AIoT device, which is not limited here. After receiving the information sent by the first UE, the base station can report at least one of the information, the identifier of the base station and the position information of the base station to the core network device, and determine the position information of the AIoT device by the core network device. The position information determined by the core network device can be the relative position information or the absolute position information of the AIoT device, which is not limited here.
[0433] In this way, since the UE can report the position related information of the AIoT device to the base station when determining the position information of the AIoT device, and then report it to the core network device by the base station, and then determine the position information of the AIoT device indirectly by the core network device according to the position related information reported by the base station, the different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0434] In some embodiments, the information sent by the UE to the base station can include at least one of the following:
[0435] The identifier of the UE;
[0436] The position information of the UE;
[0437] The indication that the UE is adjacent to the AIoT device;
[0438] The indication that the UE is associated with the AIoT device;
[0439] The measurement result of the AIoT device by the UE.
[0440] The explanation of each item of information described above can refer to the explanation of the first information sent by the UE to the core network device described above, which will not be described again here.
[0441] In some embodiments, the UE can report part or all of the content in the first information according to the indication of the base station. Specifically, the UE can perform the following operations:
[0442] The UE receives request information sent by the base station, the request information including part or all of the contents of the first request information;
[0443] The UE performs AIoT service according to the request information;
[0444] The UE determines whether it is adjacent to the AIoT device;
[0445] The UE generates the first information when it is determined that it is adjacent to the AIoT device.
[0446] Specifically, when it is necessary to determine the position information of the AIoT device, the core network device can send the first request information to the base station to request the base station to report the position-related information of the AIoT device. After receiving the first request information, the base station can send part or all of the contents in the first request information to the UE to request the UE to report the position-related information of the AIoT device. After receiving the request information, the UE can communicate with the AIoT device according to the request information and generate the position-related information of the AIoT device (i.e., the first information). After generating the first information, the UE can send part or all of the contents in the first information to the base station. The base station can report at least one of the information sent by the UE, the identifier of the base station, and the position information of the base station to the core network device, so as to determine the position information of the AIoT device by the core network device.
[0447] In this way, since the UE reports the position-related information of the AIoT device, i.e., part or all of the contents in the first information, only when the base station sends the request information to the UE, i.e., when the UE is configured to report the position-related information of the AIoT device, the signaling overhead can be saved.
[0448] In some embodiments, the UE performs AIoT service according to the request information sent by the base station, which can include at least one of the following:
[0449] The UE communicates with the AIoT device;
[0450] The UE measures the signal sent by the AIoT device to obtain the signal strength of the AIoT device;
[0451] The UE measures the signal sent by the AIoT device to obtain the distance between the UE and the AIoT device;
[0452] The UE receives measurement assistance information sent by the AIoT device; the measurement assistance information can include at least one of the gain of the transmitting antenna of the AIoT device and the gain of the receiving antenna of the AIoT device;
[0453] The UE adjusts the detected signal strength of the AIoT device according to the request information, for example, adjusts the detected signal strength of the AIoT device according to the AIoT signal strength adjustment parameter in the request information.
[0454] The UE obtains the distance between the AIoT device according to the request information.
[0455] After the UE performs the AIoT service according to the request information, the UE can determine whether the UE is adjacent to the AIoT device according to the execution result of the AIoT service, and generate first information and report part or all of the first information to the base station when it is determined that the UE is adjacent to the AIoT device. In this way, since the UE only reports information to the base station when it is determined that the UE is adjacent to the AIoT device, the signaling overhead can be saved.
[0456] In some embodiments, the UE determining that the UE is adjacent to the AIoT device can include at least one of the following:
[0457] The UE receives indication information sent by the AIoT device, and the indication information is used to indicate that the AIoT device is adjacent to the UE. The AIoT device can communicate with different UEs in sequence, and the AIoT device can indicate to the UE that the AIoT device is adjacent to the UE, so that the UE determines that the UE is adjacent to the AIoT device. This can help the AIoT device and the UE to have a consistent understanding of their adjacent relationship, and help the network to select a suitable UE to communicate with the AIoT device to schedule subsequent tasks.
[0458] The UE inventories the AIoT device;
[0459] The UE pages the AIoT device and receives a response from the AIoT device;
[0460] The UE receives an access request from the AIoT device;
[0461] The UE performs a read-write operation on the AIoT device;
[0462] (The above five methods of the UE determining that the UE is adjacent to the AIoT device are based on the communication between the UE and the AIoT device, which can help the core network device to determine the UE adjacent to the AIoT device, and the method is simple, which helps the core network device to select a suitable UE Reader to communicate with the AIoT device);
[0463] The UE detects a signal sent by the AIoT device, which can be a D2R preamble or a PDRCH;
[0464] The UE receives or successfully receives a D2R signal (such as a D2R preamble or PDRCH) and identifies the AIoT device; for example, the UE can identify the AIoT device based on the context of the D2R signal or communication;
[0465] The UE receives or successfully receives at least one D2R signal (such as a preamble); it can be understood that the at least one D2R signal is sent by the AIoT device, and the D2R signal is a response to the signal sent by the UE to the AIoT device, and accordingly, the UE can confirm the proximity to the AIoT device;
[0466] The UE successfully receives the payload sent by the AIoT device;
[0467] The UE detects that the signal strength sent by the AIoT device exceeds a first signal strength threshold; the first signal strength threshold can be configured by the core network device to the UE through the first request information, or the first signal strength threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0468] The UE detects that the signal strength sent by the AIoT device exceeds the first signal strength threshold after being adjusted according to the AIoT signal strength adjustment parameter;
[0469] The distance between the UE and the AIoT device does not exceed a first distance threshold; the first distance threshold can be configured by the core network device to the UE through the first request information, or the first distance threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0470] The path loss between the UE and the AIoT device does not exceed a first path loss threshold; the first path loss threshold can be configured by the core network device to the UE through the first request information, or the first path loss threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device);
[0471] The difference between the receiving time and the sending time of the UE does not exceed a first time difference threshold; the first time difference threshold can be configured by the core network device to the UE through the first request information, or the first time difference threshold can also be determined by the protocol or by the UE (optionally, the UE can report the threshold to the core network device).
[0472] In the embodiments of the present application, when determining the position information of the AIoT device, the UE can report the position-related information of the AIoT device to the core network device, and then the core network device indirectly determines the position information of the AIoT device according to the position-related information reported by the UE or the base station, or the UE can report the position-related information of the AIoT device to the base station, and then the base station reports it to the core network device, and then the core network device indirectly determines the position information of the AIoT device according to the position-related information reported by the base station. Therefore, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0473] As shown in FIG. 10, the present application provides a position information determination method 1000, which can be executed by the AIoT device, in other words, the position information determination method can be executed by the software or hardware installed in the AIoT device, and the position information determination method includes the following steps.
[0474] S1002: The AIoT device performs a first operation, the first operation is used to determine second information, the second information is used to indicate the position information of the AIoT device, and the first operation includes at least one of the following:
[0475] Communicate with the first device;
[0476] Determine the proximity of the first device;
[0477] Send device proximity information to the first device or the core network device, the device proximity information includes related information of the first device in proximity to the AIoT device.
[0478] When it is necessary to determine the position information of the AIoT device, the AIoT device can perform the above-mentioned first operation. In this way, the core network device can determine the position information of the AIoT device.
[0479] In some embodiments, the AIoT device determines the proximity of the first device, which can include at least one of the following:
[0480] The AIoT device has received the indication information sent by the first device, and the indication information is used to indicate that the AIoT device is in proximity to the first device; for example, a plurality of first devices (Readers) can be deployed around the AIoT device, considering that the AIoT device has weak capability and cannot identify the closest first device, the first device can indicate to the AIoT device that it is in proximity to the AIoT device;
[0481] The AIoT device has received the paging or inventory request sent by the first device;
[0482] The AIoT device is inventoried by the first device;
[0483] The AIoT device is paged by the first device and sends a response to the first device;
[0484] The AIoT device successfully performs an access procedure with the first device;
[0485] The AIoT device performs a read-write operation with the first device;
[0486] The AIoT device detects a signal sent by the first device.
[0487] In some embodiments, the device proximity information can include at least one of an identity of the first device, location information of the first device, an indication that the first device is in proximity to the AIoT device, an indication that the first device is associated with the AIoT device, and a measurement result of the AIoT device on the first device. The measurement result of the AIoT device on the first device can include at least one of:
[0488] A signal strength of the first device detected by the AIoT device;
[0489] An adjusted signal strength of the first device detected by the AIoT device;
[0490] A path loss between the AIoT device and the first device;
[0491] A distance between the AIoT device and the first device;
[0492] A time difference between a receiving time and a sending time of the AIoT device.
[0493] Since the AIoT device can report the device proximity information to the first device, the first device can determine that it is in proximity to the AIoT device. Since the AIoT device can report the device proximity information to the core network device, the core network device can determine the location information of the AIoT device based on the device proximity information, and thus the AIoT device can be accurately located.
[0494] In some embodiments, the AIoT device can also report the device proximity information according to an indication of the core network device. For example, the AIoT device can report the device proximity information to the first device or the core network device upon receiving first request information sent by the core network device, thereby saving signaling overhead. The first request information can refer to the above description of the first request information, which will not be repeated here.
[0495] The first device in each of the above embodiments includes a device adjacent to the AIoT device, and the second device includes a network-side device. In some implementations, the first device can be a base station, and correspondingly, the second device can be a core network device, or the first device is a UE, and the second device is a core network device, or the first device is a UE, and the second device is a base station. In some implementations:
[0496] The core network device can include an AMF or an AF;
[0497] The base station includes a base station responsible for receiving and transmitting (i.e., the base station receiving the D2R signal sent by the AIoT device and the base station sending the R2D signal to the AIoT device are the same base station), or a base station responsible for receiving (such as a base station responsible for receiving the D2R signal sent by the AIoT device in a split architecture), or a base station responsible for transmitting (such as a base station responsible for sending the R2D signal to the AIoT device in a split architecture);
[0498] The UE includes a UE responsible for receiving and transmitting (i.e., the UE receiving the D2R signal sent by the AIoT device and the UE sending the R2D signal to the AIoT device are the same UE), or a UE responsible for receiving (such as a UE responsible for receiving the D2R signal sent by the AIoT device in a split architecture), or a UE responsible for transmitting (such as a UE responsible for sending the R2D signal to the AIoT device in a split architecture).
[0499] In the embodiments of the present application, when determining the position information of the AIoT device, since the AIoT device can communicate with other devices, it is determined whether to be adjacent to other devices, and device adjacent information is reported to other devices or a core network device, therefore, the core network device can indirectly determine the position information of the AIoT device according to the device adjacent information determined by the AIoT device, thereby adapting to different communication scenarios of the AIoT device, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0500] FIG. 11 is a schematic flowchart of a position information determination method according to an embodiment of the present application. The position determination method shown in FIG. 11 is applicable to a scenario in which the AIoT device is adjacent to multiple Readers (including base stations, UEs, or intermediate nodes), in which scenario, the network-side device can determine the closest one of the Readers, and determine the position information of the AIoT device according to the closest Reader.
[0501] The position determination method shown in FIG. 11 includes the following steps.
[0502] Step 1: The Reader receives the first request information sent by the network device.
[0503] Wherein, the Reader can be a base station, and the network device is a core network device. Or, the Reader can be a UE reader, and the network device is a base station or a core network device. The first request information is used to instruct the Reader to perform an AIoT service, such as inventory or command or instruct the Reader to report AIoT device location information. Wherein, the interpretation and description of the first request information can refer to the corresponding content in the above-mentioned embodiment of FIG. 4, which will not be repeated here.
[0504] Step 2: The Reader performs an AIoT paging, random access or data transceiving process.
[0505] The Reader can generate first information in the process of performing the AIoT paging, random access or data transceiving. The interpretation and description of the first information can refer to the corresponding content in the above-mentioned embodiment of FIG. 4, which will not be repeated here.
[0506] Optionally, the Reader can perform at least one of the following operations in the process of performing the AIoT paging, random access or data transceiving:
[0507] The Reader measures the signal transmitted by the AIoT device to obtain the signal strength of the AIoT device;
[0508] Obtain the distance between the AIoT device and the Reader;
[0509] The Reader receives at least one of the following assistance information sent by the AIoT device:
[0510] The gain of the transmitting antenna of the AIoT device; The gain of the receiving antenna of the AIoT device;
[0511] Adjust the detected signal strength of the AIoT device based on the first request information;
[0512] Obtain the distance between the AIoT device and the Reader based on the first request information.
[0513] Step 3: The Reader sends the first information to the network device.
[0514] Step 4: The network device determines the location information of the AIoT device, such as the proximity relationship between the AIoT device and the Reader.
[0515] Specifically, taking the network device as a core network device as an example, the core network device can save the location information of the AIoT device, such as one or more Reader identifiers to represent the Reader adjacent to the AIoT device.
[0516] Optionally, in the case where the core network device receives the position related information (such as the first information) of the AIoT device sent by multiple Readers, the core network device can determine the target Reader adjacent to the AIoT device. Wherein, the target Reader can satisfy at least one of the following:
[0517] The distance between the target Reader and the AIoT device is the shortest;
[0518] The target Reader has the minimum road loss to the AIoT device;
[0519] The signal strength of the AIoT device detected by the target Reader is the largest;
[0520] The adjusted signal strength value of the signal strength of the AIoT device detected by the target Reader is the largest.
[0521] In this way, in the case where the AIoT device is adjacent to multiple Readers, the core network device selects the Reader closest to the AIoT device, and determines the position information of the AIoT device according to the closest Reader, so that the position of the AIoT device can be determined more accurately.
[0522] The main idea of the embodiment shown in FIG. 11 is that the Reader measures the signal of the AIoT device, the Reader reports the measurement result of the AIoT device to the network side device, and the network side device determines the Reader adjacent to the AIoT device, and then determines the position information of the AIoT device.
[0523] FIG. 12 is a schematic flowchart of a position information determination method according to an embodiment of the present application. The position determination method shown in FIG. 12 is applicable to the scenario where the AIoT device is adjacent to the UE Reader, and in this scenario, the UE Reader can report the position related information of the AIoT device to the core network device.
[0524] The position information determination method shown in FIG. 12 corresponds to the scenario where the first device is the UE Reader and the second device is the core network device in the embodiment shown in FIG. 4. The position information determination method shown in FIG. 12 includes the following steps.
[0525] Step 1: The UE reader receives the first request information sent by the core network.
[0526] The first request information is the same as the first request information in step 1 of the embodiment shown in FIG. 11.
[0527] Step 2: The UE Reader performs AIoT paging, random access or data transmission process.
[0528] The UE reader determines the first information.
[0529] The specific implementation of step 2 can refer to the specific implementation of step 2 in the embodiment shown in FIG. 11.
[0530] Step 3: The UE reader reports the first information to the core network device.
[0531] The first information can include a Reader identifier, which can include at least one of the following:
[0532] An identifier of the base station; that is, the AIoT device is adjacent to the base station, and considering that the UE Reader can move, the proximity of the AIoT device to the base station is used to represent the position of the AIoT device, so that the position expression is more accurate;
[0533] An identifier of the UE Reader responsible for receiving and transmitting; that is, the AIoT device is adjacent to the UE Reader responsible for receiving and transmitting, for example, there can be multiple UE Readers in a cell, the UE Reader can be fixed, or the AIoT device is associated with the UE Reader, and then the proximity of the AIoT device to the UE Reader is used to represent the position of the AIoT device, so that the position expression is more accurate;
[0534] An identifier of the UE Reader transmitting the R2D signal and / or the UE Reader receiving the D2R signal; in the case of one UE Reader transmitting the R2D signal or one UE Reader receiving the D2R signal, the Reader adjacent to the AIoT device is the UE Reader transmitting the R2D signal, or the UE Reader receiving the D2R signal, or both the two UE Readers, which can be R1 and R2 shown in FIG. 6.
[0535] It can be understood that in the case where the first information includes the identifier of the base station and the identifier of the UE Reader, the core network device can facilitate positioning of the AIoT device.
[0536] Step 4: The core network device determines the position information of the AIoT device, such as the proximity relationship of the AIoT device to the base station and / or the UE Reader.
[0537] Optionally, the core network device can determine a target Reader adjacent to the AIoT device from multiple UE Readers in the case where the core network device receives the first information sent by the multiple UE Readers.
[0538] Optionally, the target Reader is at least one of the following.
[0539] a base station;
[0540] a UE Reader responsible for receiving and transmitting;
[0541] a UE Reader responsible for transmitting R2D signals;
[0542] a UE Reader responsible for receiving D2R signals.
[0543] a target Reader adjacent to the AIoT device, which can satisfy at least one of the following conditions:
[0544] the distance between the target Reader and the AIoT device is the shortest;
[0545] the path loss between the target Reader and the AIoT device is the smallest;
[0546] the AIoT signal strength detected by the target Reader is the strongest;
[0547] the adjusted signal strength value of the AIoT signal detected by the target Reader is the strongest.
[0548] Thus, in the scenario where intermediate nodes such as UE Readers are deployed, the core network device can determine the Reader adjacent to the AIoT device according to the first information reported by the UE Reader, so that the position of the AIoT device can be determined in the scenario where intermediate nodes such as UE Readers are deployed.
[0549] FIG. 13 is a schematic flowchart of a method for determining position information according to an embodiment of the present application. The position determination method shown in FIG. 13 is applicable to the scenario where the AIoT device is adjacent to the UE Reader, and in this scenario, the UE Reader can report the position-related information of the AIoT device to the core network device through the base station.
[0550] The position information determination method shown in FIG. 13 corresponds to the scenario where the first device is the UE Reader and the second device is the base station in the embodiment shown in FIG. 4. The position information determination method shown in FIG. 13 includes the following steps.
[0551] Step 1: The base station receives the second request information sent by the core network device.
[0552] The second request information can include part or all of the contents of the first request information in the embodiment shown in FIG. 11.
[0553] Step 2: The UE Reader receives the first request information sent by the base station.
[0554] The first request information is the same as the first request information in the embodiment shown in FIG. 11. After receiving the first request information, the UE Reader can determine the proximity relationship between the UE Reader and the AIoT device according to the first request information.
[0555] Step 3: The UE Reader performs AIoT paging, random access or data transceiving process.
[0556] The UE reader determines the first information.
[0557] The specific implementation of step 3 can refer to the specific implementation of step 2 in the embodiment shown in FIG. 11.
[0558] Step 4: The UE reader reports the first information to the base station.
[0559] Step 5: The base station determines the UE reader in proximity to the AIoT device, or represents the reader in proximity to the AIoT device with the base station identifier.
[0560] The base station can determine the third information according to the first information. The third information includes at least one of the first information, the base station identifier and the location information of the base station.
[0561] Step 6: The base station reports the third information to the core network device.
[0562] Step 7: The core network device determines the location information of the AIoT device, for example, the proximity relationship between the AIoT device and the base station and / or the UE Reader. The specific implementation can refer to step 4 in the embodiment shown in FIG. 12.
[0563] The main idea of the embodiments shown in FIG. 12 and FIG. 13 is that when the AIoT device is in proximity to the UE reader, the identifier of the UE Reader or the base station, or the absolute position of the UE reader, or the association relationship of the UE reader is reported, thereby solving the problem of how to report the location or proximity relationship of the AIoT device in the scenario shown in FIG. 3 or FIG. 6.
[0564] In the scenario of separated architecture, such as the scenarios shown in FIG. 5 and FIG. 6, two Readers R1 and R2 communicate with the AIoT device. Among them, R1 is the Reader transmitting R2D signal, and R2 is the Reader receiving D2R signal. The information reported by the UE or the base station to the core network device, or the location information of the AIoT device determined by the core network, the Reader in proximity to the AIoT device corresponds to at least one of the following:
[0565] R1, that is, the Reader transmitting R2D signal;
[0566] R2, i.e. the Reader receiving the D2R signal.
[0567] In the case that the adjacent Readers include R1 and R2, it is helpful to communicate with the AIoT device through the two Readers in the future.
[0568] Based on the scheme provided in the embodiments of the present application, the problem of how to determine the position information of the AIoT device in various deployment scenarios can be solved. Specifically, it includes:
[0569] In the case that multiple Readers can communicate with the AIoT device, or multiple Readers are adjacent to the AIoT device, the nearest Reader can be determined;
[0570] In the scenario shown in FIG. 3 or FIG. 6, using the identity of the UE reader and / or BS to represent the Reader adjacent to the AIoT device can more accurately describe the position information of the AIoT device;
[0571] In the case that the AIoT device communicates with the separate Reader, using the Reader responsible for transmission and / or reception to represent the Reader adjacent to the AIoT device can more accurately describe the position information of the AIoT device;
[0572] The position information of the AIoT device is adapted to the situation of the Reader and the stationary or mobile AIoT device, which accurately describes the position of the AIoT device and is helpful for subsequent communication of the AIoT device.
[0573] The execution subject of the position information determination method provided in the embodiments of the present application can be a position information determination apparatus. In the embodiments of the present application, the position information determination method is executed by the position information determination apparatus as an example, and the position information determination apparatus provided in the embodiments of the present application is described.
[0574] The embodiments of the present application provide a position information determination apparatus. As an example, the position information determination apparatus can be a communication device or a component in the communication device, such as a chip. The communication device can be an AIoT device, a terminal (UE), a network side device or a server, etc. For example, the terminal can include but is not limited to the types of the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application are not limited specifically.
[0575] The position information determination apparatus comprises a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor, which can include a general-purpose processor, a special-purpose processor, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.
[0576] Specifically, referring to FIG. 14, when the position information determination apparatus is a second device or a component in the second device, the position information determination apparatus 1400 comprises a receiving module 1401 and a processing module 1402, wherein:
[0577] The receiving module 1401 is configured to receive first information sent by a first device, wherein the first information comprises position-related information of an environment-enabled AIoT device.
[0578] The processing module 1402 is configured to determine second information according to the first information, wherein the second information is used to indicate position information of the AIoT device.
[0579] Optionally, in some embodiments, the first information comprises at least one of the following:
[0580] an identifier of the first device;
[0581] position information of the first device;
[0582] an indication that the first device is adjacent to the AIoT device;
[0583] an indication that the first device is associated with the AIoT device;
[0584] a measurement result of the AIoT device by the first device.
[0585] wherein the measurement result comprises at least one of:
[0586] a signal strength of the AIoT device detected by the first device;
[0587] an adjusted signal strength of the AIoT device detected by the first device;
[0588] a path loss between the first device and the AIoT device;
[0589] a distance between the first device and the AIoT device;
[0590] a first time difference comprising a difference between a receiving time and a sending time of the first device.
[0591] Optionally, in some embodiments, the second information comprises at least one of:
[0592] device identities indicating one or more first devices proximate to or associated with the AIoT device;
[0593] first location information indicating geographical location information of the AIoT device;
[0594] device movement information indicating whether one or more first devices proximate to or associated with the AIoT device are stationary, mobile, located indoors, or located outdoors;
[0595] a validity time indicating a validity time of the location information of the AIoT device.
[0596] Optionally, in some embodiments, the one or more first devices proximate to or associated with the AIoT device comprises at least one of:
[0597] one or more first devices proximate to the AIoT device most recently;
[0598] one or more first devices closest to the AIoT device;
[0599] one or more first devices proximate to the AIoT device within a specified time period;
[0600] one or more first devices associated with the AIoT device, wherein the AIoT device remains proximate to the associated one or more first devices.
[0601] Optionally, in some embodiments, the first location information comprises at least one of:
[0602] location information of one or more first devices adjacent to or associated with the AIoT device;
[0603] location information determined according to the location information of one or more first devices adjacent to or associated with the AIoT device.
[0604] Optionally, in some embodiments, the receiving module 1401 is configured to receive a plurality of first information sent by a plurality of first devices.
[0605] The processing module 1402 is configured to determine a target device from the plurality of first devices according to the plurality of first information, and determine the second information according to the target device.
[0606] Optionally, in some embodiments, the target device satisfies at least one of the following conditions:
[0607] The distance to the AIoT device is the shortest.
[0608] The path loss to the AIoT device is the smallest.
[0609] The first time difference of the target device is the smallest.
[0610] The detected signal strength of the AIoT device is the largest.
[0611] The adjusted signal strength of the detected signal strength of the AIoT device is the largest.
[0612] Optionally, in some embodiments, the apparatus 1400 further includes a sending module configured to:
[0613] Send first request information to the first device, where the first request information is used to request the first device to report the location related information of the AIoT device.
[0614] Optionally, in some embodiments, the first request information includes at least one of the following:
[0615] The reporting indication of the first information;
[0616] Configuration information used by the first device to determine the AIoT device adjacent to the first device.
[0617] Optionally, in some embodiments, the configuration information includes at least one of the following:
[0618] A first signal strength threshold, where in the case that the signal strength or the adjusted signal strength of the AIoT device detected by the first device is greater than or equal to the first signal strength threshold, it is represented that the first device is adjacent to the AIoT device.
[0619] a first path loss threshold, in a case where path loss of the AIoT device detected by the first device is less than or equal to the first path loss threshold, indicating that the first device is proximate to the AIoT device;
[0620] an AIoT signal strength adjustment parameter, for the first device to adjust a detected AIoT signal strength;
[0621] a first distance threshold, in a case where distance of the AIoT device detected by the first device is less than or equal to the first distance threshold, indicating that the first device is proximate to the AIoT device;
[0622] a first time difference threshold, in a case where a difference between a receiving time and a sending time of the first device is less than or equal to the first time difference threshold, indicating that the first device is proximate to the AIoT device.
[0623] Optionally, in some embodiments, the receiving module 1401 is further configured to receive device proximity information sent by the AIoT device, the device proximity information comprising relevant information of the first device proximate to the AIoT device;
[0624] The processing module 1402 is further configured to determine the second information according to the device proximity information and the first information.
[0625] Optionally, in some embodiments, the second device comprises a core network device, and the first device comprises a base station; or
[0626] the second device comprises the core network device, and the first device comprises a user equipment (UE); or
[0627] the second device comprises the base station, and the first device comprises the UE.
[0628] Optionally, in some embodiments, in a case where the second device comprises the base station and the first device comprises the UE, the sending module is further configured to:
[0629] send third information to the core network device, the third information comprising at least one of:
[0630] an identifier of the second device;
[0631] location information of the second device;
[0632] the first information.
[0633] Optionally, in some embodiments, the receiving module 1401 is further configured to:
[0634] The core network device sends second request information, and the second request information is used to request the second device to report the position related information of the AIoT device.
[0635] Optionally, in some embodiments, the base station includes a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting.
[0636] The UE includes a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
[0637] Optionally, in some embodiments, the AIoT device is one AIoT device, or a group of AIoT devices, or a type of AIoT device.
[0638] Referring to FIG. 15, when the position information determination apparatus is the first device or a component in the first device, the position information determination apparatus 1500 includes a sending module 1501 configured to send first information to a second device;
[0639] The first information includes position related information of an AIoT device, the first information is used to determine second information, and the second information is used to indicate position information of the AIoT device.
[0640] Optionally, in some embodiments, the position related information includes at least one of the following:
[0641] An identifier of the first device;
[0642] Position information of the first device;
[0643] An indication that the first device is adjacent to the AIoT device;
[0644] An indication that the first device is associated with the AIoT device;
[0645] A measurement result of the AIoT device by the first device;
[0646] The measurement result includes at least one of the following:
[0647] A signal strength of the AIoT device detected by the first device;
[0648] An adjusted signal strength of the AIoT device detected by the first device;
[0649] A path loss of the AIoT device by the first device;
[0650] A distance of the AIoT device by the first device;
[0651] a first time difference, the first time difference comprising a difference between a receiving time and a sending time of the first device.
[0652] Optionally, in some embodiments, the apparatus 1500 further comprises a receiving module, configured to:
[0653] receive first request information sent by the second device, the first request information being used for requesting the first device to report position related information of the AIoT device.
[0654] Optionally, in some embodiments, the first request information comprises at least one of:
[0655] reporting indication of the first information;
[0656] configuration information, used by the first device to determine AIoT devices adjacent to the first device.
[0657] Optionally, in some embodiments, the configuration information comprises at least one of:
[0658] a first signal strength threshold, in a case that a signal strength of an AIoT device detected by the first device or an adjusted signal strength of the signal strength is greater than or equal to the first signal strength threshold, representing that the first device is adjacent to the AIoT device;
[0659] a first path loss threshold, in a case that a path loss of an AIoT device detected by the first device is less than or equal to the first path loss threshold, representing that the first device is adjacent to the AIoT device;
[0660] an AIoT signal strength adjustment parameter, used for adjusting an AIoT signal strength detected by the first device;
[0661] a first distance threshold, in a case that a distance of an AIoT device detected by the first device is less than or equal to the first distance threshold, representing that the first device is adjacent to the AIoT device;
[0662] a first time difference threshold, in a case that a difference between a receiving time and a sending time of the first device is less than or equal to the first time difference threshold, representing that the first device is adjacent to the AIoT device.
[0663] Optionally, in some embodiments, the second device comprises a core network device, and the first device comprises a base station; or;
[0664] the second device comprises the core network device, and the first device comprises a user equipment (UE); or,
[0665] The second device includes the base station, and the first device includes the UE.
[0666] Optionally, in some embodiments, in a case where the second device includes the core network device and the first device includes the base station, the receiving module is further configured to:
[0667] receive fourth information sent by the UE, the fourth information including information related to the UE being adjacent to the AIoT device;
[0668] The first information further includes the fourth information.
[0669] Optionally, in some embodiments, the information related to the UE being adjacent to the AIoT device includes at least one of the following:
[0670] an identifier of the UE;
[0671] location information of the UE;
[0672] an indication that the UE is adjacent to the AIoT device;
[0673] an indication that the UE is associated with the AIoT device;
[0674] a measurement result of the AIoT device by the UE;
[0675] The measurement result includes at least one of the following:
[0676] a signal strength of the AIoT device detected by the UE;
[0677] an adjusted signal strength of the AIoT device detected by the UE;
[0678] a path loss between the UE and the AIoT device;
[0679] a distance between the UE and the AIoT device;
[0680] a difference between a receiving time and a sending time of the UE.
[0681] Optionally, in some embodiments, the sending module 1501 is further configured to:
[0682] send, to the UE, third request information for requesting the UE to report location-related information of the AIoT device.
[0683] Optionally, in some embodiments, the apparatus 1500 further includes a processing module.
[0684] The receiving module is configured to receive a plurality of fourth information sent by a plurality of UEs.
[0685] The processing module is configured to determine a target UE from the plurality of UEs according to the plurality of fourth information, and determine fifth information according to the target UE, the fifth information being used to indicate position information of the AIoT device.
[0686] The first information includes the fifth information.
[0687] Optionally, in some embodiments, the target UE satisfies at least one of the following conditions:
[0688] The target UE has the shortest distance to the AIoT device.
[0689] The target UE has the smallest path loss to the AIoT device.
[0690] The target UE has the smallest difference between a receiving time and a sending time.
[0691] The target UE has the strongest signal strength of the AIoT device.
[0692] The target UE has the strongest adjusted signal strength of the AIoT device.
[0693] Optionally, in some embodiments, when the second device includes the core network device and the first device includes the UE, or when the second device includes the base station and the first device includes the UE, the processing module is further configured to:
[0694] Perform an AIoT service according to the first request information.
[0695] Determine whether the AIoT device is adjacent.
[0696] Generate the first information when it is determined that the AIoT device is adjacent.
[0697] Optionally, in some embodiments, the processing module is configured to at least one of the following:
[0698] Communicate with the AIoT device.
[0699] Measure a signal sent by the AIoT device to obtain a signal strength of the AIoT device.
[0700] Measure a signal sent by the AIoT device to obtain a distance between the AIoT device and the target UE.
[0701] Receive measurement assistance information sent by the AIoT device.
[0702] According to the first request information, adjust the detected signal strength of the AIoT device.
[0703] According to the first request information, obtain the distance between the AIoT device.
[0704] Optionally, in some embodiments, the first device determines that the AIoT device is adjacent, including at least one of:
[0705] The first device receives indication information sent by the AIoT device, and the indication information is used to indicate that the AIoT device is adjacent to the first device.
[0706] The first device inventories the AIoT device.
[0707] The first device pages the AIoT device, and receives a response of the AIoT device.
[0708] The first device receives an access request of the AIoT device.
[0709] The first device performs a read-write operation on the AIoT device.
[0710] The first device detects a signal sent by the AIoT device.
[0711] The first device receives or successfully receives a D2R signal, and identifies the AIoT device.
[0712] The first device receives or successfully receives at least one D2R signal.
[0713] The first device successfully receives a payload sent by the AIoT device.
[0714] The first device detects that the signal strength of the signal sent by the AIoT device exceeds a first signal strength threshold.
[0715] The first device detects that the signal strength of the signal sent by the AIoT device exceeds a first signal strength threshold after being adjusted according to an AIoT signal strength adjustment parameter.
[0716] The distance between the first device and the AIoT device does not exceed a first distance threshold.
[0717] The path loss between the first device and the AIoT device does not exceed a first path loss threshold.
[0718] The difference between the receiving time and the sending time of the first device does not exceed a first time difference threshold.
[0719] Optionally, in some embodiments, the base station comprises a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting.
[0720] The UE comprises a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
[0721] Referring to FIG. 16, when the position information determining apparatus is a base station or a component in the base station, the position information determining apparatus 1600 comprises a sending module 1601 configured to send first information to a core network device;
[0722] The first information comprises position related information of an AIoT device, and the first information is used to determine second information used to indicate position information of the AIoT device.
[0723] Optionally, in some embodiments, the apparatus 1600 further comprises a receiving module;
[0724] The receiving module is configured to receive first request information sent by the core network device, and the first request information is used to request the base station to report position related information of the AIoT device.
[0725] The sending module 1601 is configured to send part or all of the content of the first request information to a UE.
[0726] Optionally, in some embodiments, the first request information comprises at least one of the following:
[0727] Reporting indication of the first information;
[0728] Configuration information used by the UE to determine AIoT devices adjacent to the UE.
[0729] Referring to FIG. 17, when the position information determining apparatus is a terminal or a component in the terminal, the position information determining apparatus 1700 comprises a sending module 1701 configured to perform at least one of the following:
[0730] Send first information to a core network device, wherein the first information comprises position related information of an AIoT device, and the first information is used to determine second information used to indicate position information of the AIoT device;
[0731] Send part or all of the content of the first information to a base station.
[0732] Optionally, in some embodiments, the apparatus 1700 further comprises a processing module configured to perform at least one of the following:
[0733] receive first request information sent by the core network device, the first request information being used for requesting the UE to report position related information of the AIoT device;
[0734] perform AIoT service according to the first request information;
[0735] determine whether the UE is adjacent to the AIoT device;
[0736] generate the first information in a case where it is determined that the UE is adjacent to the AIoT device.
[0737] Optionally, in some embodiments, the first request information comprises at least one of the following:
[0738] reporting indication of the first information;
[0739] configuration information used for the UE to determine AIoT devices adjacent to the UE.
[0740] Optionally, in some embodiments, the processing module is further configured to perform at least one of the following:
[0741] communicate with the AIoT device;
[0742] measure a signal sent by the AIoT device to obtain a signal strength of the AIoT device;
[0743] measure a signal sent by the AIoT device to obtain a distance between the UE and the AIoT device;
[0744] receive measurement assistance information sent by the AIoT device;
[0745] adjust the detected signal strength of the AIoT device according to the first request information;
[0746] obtain the distance between the UE and the AIoT device according to the first request information.
[0747] Optionally, in some embodiments, the determination that the UE is adjacent to the AIoT device comprises at least one of the following:
[0748] receiving indication information sent by the AIoT device, the indication information being used for indicating that the AIoT device is adjacent to the UE;
[0749] inventory the AIoT device;
[0750] page the AIoT device and receive a response of the AIoT device;
[0751] receive an access request of the AIoT device;
[0752] a read-write operation is performed on the AIoT device;
[0753] a signal transmitted by the AIoT device is detected;
[0754] a D2R signal is received or successfully received, and the AIoT device is identified;
[0755] at least one D2R signal is received or successfully received;
[0756] a payload transmitted by the AIoT device is successfully received;
[0757] a signal transmitted by the AIoT device is detected to exceed a first signal strength threshold;
[0758] a signal transmitted by the AIoT device is detected to exceed a first signal strength threshold after adjustment according to an AIoT signal strength adjustment parameter;
[0759] a distance to the AIoT device does not exceed a first distance threshold;
[0760] a path loss to the AIoT device does not exceed a first path loss threshold;
[0761] a difference between a receiving time and a transmitting time of the UE does not exceed a first time difference threshold.
[0762] Referring to FIG. 18, when the position information determination apparatus is an AIoT device or a component in an AIoT device, the position information determination apparatus 1800 includes a processing module 1801 configured to perform a first operation for determining second information, the second information being used to indicate position information of the AIoT device, the first operation including at least one of the following:
[0763] communicate with a first device;
[0764] determine to be proximate to the first device;
[0765] send device proximity information to the first device or a core network device, the device proximity information including relevant information of the first device proximate to the AIoT device.
[0766] Optionally, in some embodiments, the determination to be proximate to the first device includes at least one of the following:
[0767] the AIoT device receives indication information transmitted by the first device, the indication information being used to indicate that the AIoT device is proximate to the first device;
[0768] the AIoT device receives a paging or inventory request transmitted by the first device;
[0769] The AIoT device is inventoried by the first device;
[0770] The AIoT device is paged by the first device and sends a response to the first device;
[0771] The AIoT device successfully performs an access procedure with the first device;
[0772] The AIoT device performs a read-write operation with the first device;
[0773] The AIoT device detects a signal sent by the first device.
[0774] Optionally, in some embodiments, the first device comprises at least one of:
[0775] a base station, the base station comprising a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting;
[0776] a UE, the UE comprising a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
[0777] In the embodiments of the present application, the first device can send first information to the second device, the first information comprising position-related information of the AIoT device, and the second device can determine the position information of the AIoT device according to the first information. In this way, when determining the position information of the AIoT device, the first device can first determine and report the position-related information of the AIoT device, and then the second device can indirectly determine the position information of the AIoT device according to the position-related information reported by other devices. In this way, different communication scenarios of the AIoT device can be adapted, so that the position information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0778] The position information determination apparatus provided in the embodiments of the present application can implement each process implemented by the method embodiments of FIG. 4, FIG. 7 to FIG. 10, and achieve the same technical effects. To avoid repetition, details are not described here.
[0779] As shown in FIG. 19, the embodiment of the present application further provides a communication device 1900, comprising a processor 1901 and a memory 1902, wherein the memory 1902 stores programs or instructions executable by the processor 1901. For example, when the communication device 1900 is a second device, the programs or instructions are executed by the processor 1901 to implement each step of the method for determining position information shown in FIG. 4, and achieve the same technical effects. When the communication device 1900 is a first device, the programs or instructions are executed by the processor 1901 to implement each step of the method for determining position information shown in FIG. 7, and achieve the same technical effects. When the communication device 1900 is a base station, the programs or instructions are executed by the processor 1901 to implement each step of the method for determining position information shown in FIG. 8, and achieve the same technical effects. For the sake of brevity, details are not repeated here. When the communication device 1900 is a terminal, the programs or instructions are executed by the processor 1901 to implement each step of the method for determining position information shown in FIG. 9, and achieve the same technical effects. When the communication device 1900 is an AIoT device, the programs or instructions are executed by the processor 1901 to implement each step of the method for determining position information shown in FIG. 10, and achieve the same technical effects. For the sake of brevity, details are not repeated here.
[0780] The embodiment of the present application further provides a terminal, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiment shown in FIG. 9. The terminal embodiment corresponds to the above-mentioned UE-side method embodiment, and each implementation process and implementation manner of the above-mentioned UE-side method embodiment can be applicable to the terminal embodiment, and can achieve the same technical effects. The terminal can be the position information determining apparatus shown in FIG. 17. Specifically, FIG. 20 is a schematic diagram of the hardware structure of a terminal for implementing the embodiment of the present application.
[0781] The terminal 2000 includes, but is not limited to, at least part of components such as a radio frequency unit 2001, a network module 2002, an audio output unit 2003, an input unit 2004, a sensor 2005, a display unit 2006, a user input unit 2007, an interface unit 2008, a memory 2009, and a processor 2010.
[0782] Those skilled in the art can understand that the terminal 2000 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 2010 through a power management system, so that the power management system can realize the functions of managing charging, discharging, power consumption management and the like. The terminal structure shown in FIG. 20 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described here.
[0783] It should be understood that in the embodiments of the present application, the input unit 2004 can include a graphics processor 20041 and a microphone 20042. The graphics processor 20041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 2006 can include a display panel 20061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 2007 includes at least one of a touch panel 20071 and other input devices 20072. The touch panel 20071 is also called a touch screen. The touch panel 20071 can include two parts of a touch detection device and a touch controller. The other input devices 20072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, which are not described here.
[0784] In the embodiments of the present application, after the radio frequency unit 2001 receives the downlink data from the network side device, it can be transmitted to the processor 2010 for processing. In addition, the radio frequency unit 2001 can send uplink data to the network side device. Generally, the radio frequency unit 2001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.
[0785] The memory 2009 can be used to store software programs or instructions and various data. The memory 2009 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 2009 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 2009 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.
[0786] The processor 2010 can include one or more processing units; optionally, the processor 2010 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 2010.
[0787] The radio frequency unit 2001 is configured to perform at least one of the following:
[0788] The first information includes location related information of the AIoT device, and the first information is used to determine second information, and the second information is used to indicate the location information of the AIoT device.
[0789] The base station sends part or all of the content of the first information.
[0790] Since in determining the location information of the AIoT device, the UE can report the location related information of the AIoT device to the core network device, and then the core network device indirectly determines the location information of the AIoT device according to the location related information reported by the UE or the base station, or the UE can report the location related information of the AIoT device to the base station, and then the base station reports to the core network device, and then the core network device indirectly determines the location information of the AIoT device according to the location related information reported by the base station, therefore, different communication scenarios of the AIoT device can be adapted, so that the location information of the AIoT device can be accurately obtained in different communication scenarios of the AIoT device.
[0791] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the method embodiment 900 and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.
[0792] The embodiment of the application also provides a network side device, including a processor and a communication interface, the communication interface and the processor are coupled, the processor is used for running programs or instructions, and part or all steps in the method embodiments shown in FIG. 4, FIG. 7 or FIG. 8 are implemented. The network side device embodiment corresponds to the above-mentioned first device side method embodiment, the second device side method embodiment or the base station side method embodiment. Each implementation process and implementation manner of the above-mentioned first device side method embodiment, the second device side method embodiment or the base station side method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.
[0793] Specifically, the embodiment of the application further provides a network side device. As shown in FIG. 21, the network side device 2100 includes a processor 2101, a network interface 2102 and a memory 2103. The network side device can be the location information determination apparatus shown in FIG. 14, FIG. 15 or FIG. 16. Wherein, the network interface 2102 is, for example, a common public radio interface (common public radio interface, CPRI).
[0794] Specifically, the network side device 2100 of the embodiment of the application further includes instructions or programs stored on the memory 2103 and executable on the processor 2101. The processor 2101 invokes the instructions or programs in the memory 2103 to execute the method executed by each module shown in FIG. 14, FIG. 15 or FIG. 16, and achieves the same technical effects. To avoid repetition, it will not be repeated here.
[0795] The embodiment of the present application further provides a readable storage medium, which stores a program or instructions, and the program or instructions are executed by a processor to implement various processes of the position information determination method and achieve the same technical effects. To avoid repetition, details are not described herein.
[0796] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.
[0797] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled with the processor. The processor is used to run a program or instructions to implement various processes of the position information determination method and achieve the same technical effects. To avoid repetition, details are not described herein.
[0798] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.
[0799] The embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement various processes of the position information determination method and achieve the same technical effects. To avoid repetition, details are not described herein.
[0800] The embodiment of the present application further provides a position information determination system, which includes a first device, a second device and an AIoT device. The second device can be used to execute the steps of the position information determination method as shown in FIG. 4. The first device can be used to execute the steps of the position information determination method as shown in FIG. 7, or the steps of the position information determination method as shown in FIG. 8, or the steps of the position information determination method as shown in FIG. 9. The AIoT device can be used to execute the steps of the position information determination method as shown in FIG. 10.
[0801] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing the present application, certain aspects of the application can be presented in terms of sequences of actions, but it should be appreciated that these sequences are examples and are not limiting. The sequences of actions could be changed, and other sequences could be implemented. Moreover, it should be appreciated that sometimes it is easier to describe one aspect of the application in terms of another aspect of the application. Therefore, the description herein of one aspect of the application in terms of another aspect of the application is used merely to more particularly exemplify the application. It should be appreciated that the use of the word "about" in describing the application is intended to mean that the amount or value in question is not exact but is intended to include the amount or value in question plus or minus 10% of the amount or value in question.
[0802] From the above description of the embodiments of the present application, it is apparent that the above-described method of the embodiments can be realized by means of a computer software product and general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.
[0803] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, but not restrictive. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.
Claims
1. A method of determining position information, wherein, The method comprises: A second device receives first information sent by a first device, wherein the first information comprises location-related information of an environment-enabled AIoT device; The second device determines second information according to the first information, wherein the second information is used to indicate the location information of the AIoT device.
2. The method of claim 1, wherein, The location-related information comprises at least one of the following: An identifier of the first device; Location information of the first device; An indication that the first device is adjacent to the AIoT device; An indication that the first device is associated with the AIoT device; A measurement result of the AIoT device by the first device; The measurement result comprises at least one of the following: A signal strength of the AIoT device detected by the first device; An adjusted signal strength of the AIoT device detected by the first device; A path loss between the first device and the AIoT device; A distance between the first device and the AIoT device; A first time difference between a receiving time and a sending time of the first device.
3. The method of claim 1 or 2, wherein, The second information comprises at least one of the following: Device identifiers used to indicate one or more first devices adjacent to or associated with the AIoT device; First location information used to indicate geographical location information of the AIoT device; Device movement information used to indicate whether one or more first devices adjacent to or associated with the AIoT device are stationary, mobile, located indoors, or located outdoors; A valid time used to indicate a valid time of the location information of the AIoT device.
4. The method of claim 3, wherein, The one or more first devices adjacent to or associated with the AIoT device comprise at least one of the following: One or more first devices most recently adjacent to the AIoT device; One or more first devices closest to the AIoT device; One or more first devices adjacent to the AIoT device within a specified time period; One or more first devices associated with the AIoT device, wherein the AIoT device remains adjacent to the associated one or more first devices.
5. The method of claim 3, wherein, The first location information comprises at least one of the following: Location information of one or more first devices adjacent to or associated with the AIoT device; Location information determined according to location information of one or more first devices adjacent to or associated with the AIoT device.
6. The method according to any one of claims 1 to 5, wherein, The second device receives first information sent by a first device, comprising: The second device receives a plurality of first information sent by a plurality of first devices; The second device determines second information according to the first information, comprising: The second device determines a target device from the plurality of first devices according to a plurality of first information; The second device determines the second information according to the target device.
7. The method of claim 6, wherein, The target device satisfies at least one of the following: The shortest distance to the AIoT device; The smallest path loss to the AIoT device; The smallest first time difference of the target device; The largest detected signal strength of the AIoT device; The detected signal strength of the AIoT device is adjusted to a maximum signal strength.
8. The method according to any one of claims 1 to 7, wherein, The method further comprises: The second device sends first request information to the first device, the first request information being used to request the first device to report position-related information of the AIoT device.
9. The method of claim 8, wherein, The first request information comprises at least one of: Reporting indication of the first information; Configuration information used by the first device to determine AIoT devices adjacent to the first device.
10. The method of claim 9, wherein, The configuration information comprises at least one of: A first signal strength threshold, representing that the first device is adjacent to the AIoT device in a case where the signal strength of the AIoT device detected by the first device or the adjusted signal strength of the signal strength is greater than or equal to the first signal strength threshold; A first path loss threshold, representing that the first device is adjacent to the AIoT device in a case where the path loss of the AIoT device detected by the first device is less than or equal to the first path loss threshold; An AIoT signal strength adjustment parameter, used by the first device to adjust the detected AIoT signal strength; A first distance threshold, representing that the first device is adjacent to the AIoT device in a case where the distance of the AIoT device detected by the first device is less than or equal to the first distance threshold; A first time difference threshold, representing that the first device is adjacent to the AIoT device in a case where the difference between the receiving time and the sending time of the first device is less than or equal to the first time difference threshold.
11. The method according to any one of claims 1 to 10, wherein, The method further comprises: The second device receives device proximity information sent by the AIoT device, the device proximity information comprising related information of the first device adjacent to the AIoT device; The second device determines the second information according to the device proximity information and the first information.
12. The method of any of claims 1-11, wherein: The second device comprises a core network device, and the first device comprises a base station; or The second device comprises the core network device, and the first device comprises a user equipment (UE); or The second device comprises the base station, and the first device comprises the UE.
13. The method of claim 12, wherein, In a case where the second device comprises the base station and the first device comprises the UE, the method further comprises: The second device sends third information to the core network device, the third information comprising at least one of: An identifier of the second device; Position information of the second device; The first information.
14. The method of claim 13, wherein, The method further comprises: The second device receives second request information sent by the core network device, the second request information being used to request the second device to report position-related information of the AIoT device.
15. The method of any of claims 12-14, wherein: The base station comprises a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting; The UE comprises a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
16. The method of any one of claims 1 to 15, wherein, The AIoT device is one AIoT device, or a group of AIoT devices, or a type of AIoT device.
17. A method of determining position information, wherein, Comprise: The first device sends first information to the second device; Wherein, the first information includes position related information of the AIoT device, and the first information is used to determine second information, and the second information is used to indicate the position information of the AIoT device.
18. The method of claim 17, wherein, The position related information includes at least one of: The identity of the first device; The position information of the first device; The indication that the first device is adjacent to the AIoT device; The indication that the first device is associated with the AIoT device; The measurement result of the AIoT device by the first device; Wherein, the measurement result includes at least one of: The signal strength of the AIoT device detected by the first device; The adjusted signal strength of the AIoT device detected by the first device; The first device and the road loss of the AIoT device; The distance between the first device and the AIoT device; The first time difference, which includes the difference between the receiving time and the sending time of the first device.
19. The method of claim 17 or 18, wherein, The method further comprises: The first device receives the first request information sent by the second device, and the first request information is used to request the first device to report the position related information of the AIoT device.
20. The method of claim 19, wherein, The first request information includes at least one of: The reporting indication of the first information; Configuration information, used by the first device to determine the AIoT device adjacent to the first device.
21. The method of claim 20, wherein, The configuration information includes at least one of: The first signal strength threshold, in the case that the signal strength or the adjusted signal strength of the AIoT device detected by the first device is greater than or equal to the first signal strength threshold, it is characterized that the first device is adjacent to the AIoT device; The first road loss threshold, in the case that the road loss of the AIoT device detected by the first device is less than or equal to the first road loss threshold, it is characterized that the first device is adjacent to the AIoT device; The AIoT signal strength adjustment parameter is used to adjust the AIoT signal strength detected by the first device; The first distance threshold, in the case that the distance of the AIoT device detected by the first device is less than or equal to the first distance threshold, it is characterized that the first device is adjacent to the AIoT device; The first time difference threshold, in the case that the difference between the receiving time and the sending time of the first device is less than or equal to the first time difference threshold, it is characterized that the first device is adjacent to the AIoT device.
22. The method of any one of claims 17-21, wherein: The second device includes a core network device, and the first device includes a base station; or; The second device includes the core network device, and the first device includes a user equipment (UE); or The second device includes the base station, and the first device includes the UE.
23. The method of claim 22, wherein, In the case that the second device includes the core network device and the first device includes the base station, the method further comprises: The first device receives fourth information sent by the UE, and the fourth information includes information related to the UE being adjacent to the AIoT device. The first information further includes the fourth information.
24. The method of claim 23, wherein, The information related to the UE being adjacent to the AIoT device includes at least one of the following: An identifier of the UE; Position information of the UE; An indication that the UE is adjacent to the AIoT device; An indication that the UE is associated with the AIoT device; A measurement result of the AIoT device by the UE; The measurement result includes at least one of the following: A signal strength of the AIoT device detected by the UE; An adjusted signal strength of the AIoT device detected by the UE; A path loss between the UE and the AIoT device; A distance between the UE and the AIoT device; A difference between a receiving time and a sending time of the UE.
25. The method of claim 23 or 24, wherein, The method further includes: The first device sends third request information to the UE, and the third request information is used to request the UE to report position-related information of the AIoT device.
26. The method of any one of claims 23 to 25, wherein, The first device receives fourth information sent by the UE, including: The first device receives a plurality of fourth information sent by a plurality of UEs; The first device determines a target UE from the plurality of UEs according to the plurality of fourth information; The first device determines fifth information according to the target UE, and the fifth information is used to indicate position information of the AIoT device; The first information includes the fifth information.
27. The method of claim 26, wherein, The target UE satisfies at least one of the following: The shortest distance to the AIoT device; The minimum path loss to the AIoT device; The minimum difference between the receiving time and the sending time of the target UE; The maximum signal strength of the AIoT device detected by the target UE; The maximum adjusted signal strength of the AIoT device detected by the target UE.
28. The method of claim 22, wherein, In the case that the second device includes the core network device and the first device includes the UE, or in the case that the second device includes the base station and the first device includes the UE, the method further includes: The first device performs AIoT service according to the first request information; The first device determines whether it is adjacent to the AIoT device; The first device generates the first information in the case that it is determined to be adjacent to the AIoT device.
29. The method of claim 28, wherein, The first device performs AIoT service according to the first request information, including at least one of the following: The first device communicates with the AIoT device; The first device measures a signal sent by the AIoT device to obtain a signal strength of the AIoT device; The first device measures a signal sent by the AIoT device to obtain a distance between the AIoT device and the first device; The first device receives measurement assistance information sent by the AIoT device; The first device adjusts the signal strength of the AIoT device detected according to the first request information; The first device acquires a distance between the AIoT device according to the first request information.
30. The method of claim 28 or 29, wherein, The first device determines that the AIoT device is adjacent, including at least one of the following: The first device receives the indication information sent by the AIoT device, and the indication information is used to indicate that the AIoT device is adjacent to the first device; The first device checks the AIoT device; The first device pages the AIoT device and receives a response of the AIoT device; The first device receives an access request of the AIoT device; The first device performs a read-write operation on the AIoT device; The first device detects a signal sent by the AIoT device; The first device receives or successfully receives a D2R signal and identifies the AIoT device; The first device receives or successfully receives at least one D2R signal; The first device successfully receives a payload sent by the AIoT device; The first device detects that a signal strength sent by the AIoT device exceeds a first signal strength threshold; The first device detects that a signal strength sent by the AIoT device exceeds a first signal strength threshold after being adjusted according to an AIoT signal strength adjustment parameter; The distance between the first device and the AIoT device does not exceed a first distance threshold; The path loss between the first device and the AIoT device does not exceed a first path loss threshold; The difference between the receiving time and the sending time of the first device does not exceed a first time difference threshold.
31. The method of any one of claims 22-30, wherein, The base station includes a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting; The UE includes a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
32. A method of determining position information, wherein, Including: The base station sends first information to the core network device; The first information includes the location related information of the AIoT device, and the first information is used to determine the second information, and the second information is used to indicate the location information of the AIoT device.
33. The method of claim 32, wherein, The method further includes: The base station receives the first request information sent by the core network device, and the first request information is used to request the base station to report the location related information of the AIoT device; The base station sends part or all of the content of the first request information to the UE.
34. The method of claim 33, wherein, The first request information includes at least one of the following: Reporting indication of the first information; Configuration information for the UE to determine the AIoT device adjacent to the UE.
35. A method of determining position information, wherein, Including at least one of the following: The UE sends first information to the core network device, and the first information includes the location related information of the AIoT device, and the first information is used to determine the second information, and the second information is used to indicate the location information of the AIoT device; The UE sends part or all of the content of the first information to the base station.
36. The method of claim 35, wherein, The method further includes: The UE receives the first request information sent by the core network device, and the first request information is used to request the UE to report the location related information of the AIoT device; The UE performs AIoT service according to the first request information; The UE determines whether to be adjacent to the AIoT device; The UE generates the first information in a case that it is determined to be adjacent to the AIoT device.
37. The method of claim 36, wherein, The UE performs AIoT service according to the first request information, including at least one of: The UE communicates with the AIoT device; The UE measures a signal transmitted by the AIoT device to obtain a signal strength of the AIoT device; The UE measures a signal transmitted by the AIoT device to obtain a distance between the UE and the AIoT device; The UE receives measurement assistance information transmitted by the AIoT device; The UE adjusts the detected signal strength of the AIoT device according to the first request information; The UE obtains the distance between the UE and the AIoT device according to the first request information.
38. The method of claim 36 or 37, wherein, The UE determines to be adjacent to the AIoT device, including at least one of: The UE receives indication information transmitted by the AIoT device, the indication information being used to indicate that the AIoT device is adjacent to the UE; The UE pings the AIoT device; The UE pages the AIoT device and receives a response of the AIoT device; The UE receives an access request of the AIoT device; The UE performs read-write operation on the AIoT device; The UE detects a signal transmitted by the AIoT device; The UE receives or successfully receives a D2R signal and identifies the AIoT device; The UE receives or successfully receives at least one D2R signal; The UE successfully receives a payload transmitted by the AIoT device; The UE detects that a signal strength of the AIoT device exceeds a first signal strength threshold; The UE detects that a signal strength of the AIoT device exceeds a first signal strength threshold after being adjusted according to an AIoT signal strength adjustment parameter; The UE is within a first distance threshold from the AIoT device; The UE is within a first path loss threshold from the AIoT device; A difference between a receiving time and a transmitting time of the UE is within a first time difference threshold.
39. A method of determining position information, wherein, Including: The AIoT device performs a first operation, the first operation being used to determine second information, the second information being used to indicate location information of the AIoT device, and the first operation including at least one of: Communicating with a first device; Determining to be adjacent to the first device; Transmitting device adjacent information to the first device or a core network device, the device adjacent information including related information of the first device adjacent to the AIoT device.
40. The method of claim 39, wherein, The determining to be adjacent to the first device includes at least one of: The AIoT device receives indication information transmitted by the first device, the indication information being used to indicate that the AIoT device is adjacent to the first device; The AIoT device receives a paging or ping request transmitted by the first device; The AIoT device is pinged by the first device; The AIoT device is paged by the first device, and sends a response to the first device; The AIoT device successfully performs an access procedure with the first device; The AIoT device performs a read-write operation with the first device; The AIoT device detects a signal sent by the first device.
41. The method of claim 39 or 40, wherein, The first device includes at least one of: a base station, including a base station responsible for receiving and transmitting, or a base station responsible for receiving, or a base station responsible for transmitting; a UE, including a UE responsible for receiving and transmitting, or a UE responsible for receiving, or a UE responsible for transmitting.
42. A device for determining position information, wherein, comprising: a receiving module configured to receive first information sent by a first device, the first information including location-related information of an environment-enabled Internet of Things (AIoT) device; a processing module configured to determine second information according to the first information, the second information being used to indicate location information of the AIoT device.
43. A device for determining position information, wherein, comprising: a sending module configured to send first information to a second device; wherein the first information includes location-related information of an AIoT device, and the first information is used to determine second information, the second information being used to indicate location information of the AIoT device.
44. A device for determining position information, wherein, comprising: a sending module configured to send first information to a core network device; wherein the first information includes location-related information of an AIoT device, and the first information is used to determine second information, the second information being used to indicate location information of the AIoT device.
45. A device for determining position information, wherein, comprising: a sending module configured to perform at least one of: send first information to a core network device, the first information including location-related information of an AIoT device, and the first information being used to determine second information, the second information being used to indicate location information of the AIoT device; send part or all of the first information to a base station.
46. A device for determining position information, wherein, comprising: a processing module configured to perform a first operation, the first operation being used to determine second information, the second information being used to indicate location information of an AIoT device, and the first operation including at least one of: communicate with a first device; determine proximity to the first device; send device proximity information to the first device or a core network device, the device proximity information including relevant information of the first device in proximity to the AIoT device.
47. A communications device, comprising: comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the method of any one of claims 1-16, or implement steps of the method of any one of claims 17-31, or implement steps of the method of any one of claims 32-34, or implement steps of the method of any one of claims 35-38, or implement steps of the method of any one of claims 39-41.
48. A readable storage medium, wherein, The program or instructions are stored on the readable storage medium, and when executed by the processor, implement the steps of the method of any one of claims 1 to 16, or implement the steps of the method of any one of claims 17 to 31, or implement the steps of the method of any one of claims 32 to 34, or implement the steps of the method of any one of claims 35 to 38, or implement the steps of the method of any one of claims 39 to 41.
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