WO2024149127A1

WO2024149127A1 - Information acquisition method and apparatus, information sending method and apparatus, and communication device

Info

Publication number: WO2024149127A1
Application number: PCT/CN2024/070239
Authority: WO
Inventors: 刘进华
Original assignee: 维沃移动通信有限公司
Priority date: 2023-01-10
Filing date: 2024-01-03
Publication date: 2024-07-18
Also published as: CN118338247A

Abstract

Disclosed in the present application are an information acquisition method and apparatus, an information sending method and apparatus, and a communication device. The information acquisition method in the present application comprises: a network-side device acquiring location information of an ambient IoT device by means of executing a first operation, the first operation comprising at least one of the following: acquiring location-related information sent by the ambient IoT device, wherein the location-related information is sent by the ambient IoT device according to at least one of a location inquiry command or a checking command, which is sent by the network-side device, and the location-related information comprises the location information of the ambient IoT device; performing a read operation on the ambient IoT device; and acquiring first information sent by a reader-writer, wherein the first information comprises location information of the reader-writer, the reader-writer is a reader-writer for accessing a target ambient IoT device, and the location information of the reader-writer is used for indicating location information of the target ambient IoT device

Description

Information acquisition, sending method, device and communication equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202310035141.6 filed in China on January 10, 2023, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a method, device and communication equipment for acquiring and sending information.

Background technique

In the 3rd Generation Partnership Project (3GPP) network, a User Equipment (UE) in the Radio Resource Control IDLE (RRC_IDLE) state or the Radio Resource Control INACTIVE (RRC_INACTIVE) state can report location information to the network based on the reporting process in the relevant technology, so that the network can obtain the location information of the User Equipment. However, the Ambient IoT device based on the passive communication mechanism cannot reuse the UE's reporting process to report the location information to the network. Therefore, a new reporting process needs to be developed to enable the network to obtain the location information of the Ambient IoT device.

Summary of the invention

The embodiments of the present application provide a method, device and communication equipment for obtaining and sending information, which can solve the problem of how to obtain the location information of Ambient IoT devices.

In a first aspect, a method for obtaining information is provided, comprising:

The network-side device obtains the location information of the Ambient IoT device by executing the first operation;

The first operation includes at least one of the following:

Obtaining location-related information sent by an Ambient IoT device, wherein the location-related information is sent by the Ambient IoT device according to at least one of a location query command or an inventory command sent by the network-side device, wherein the location query command is used to request obtaining location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information, and the location-related information includes the location information of the Ambient IoT device;

Performing a read operation on a memory area of the Ambient IoT device, wherein the memory area of the Ambient IoT device stores location information of the Ambient IoT device;

Acquire first information sent by a reader/writer, where the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate location information of the target Ambient IoT device.

In a second aspect, a method for sending information is provided, comprising:

The Ambient IoT device obtains at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request the location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information;

The Ambient IoT device sends location-related information of the Ambient IoT device according to at least one of the location query instruction and the inventory command, and the location-related information includes the location information of the Ambient IoT device.

In a third aspect, a method for sending information is provided, comprising:

The reader/writer sends first information, which includes location information of the reader/writer. The reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

In a fourth aspect, an information acquisition device is provided, which is applied to a network side device, including:

A first execution module is used to obtain location information of an Ambient IoT device by executing a first operation;

The first operation includes at least one of the following:

Obtain first information sent by a reader/writer, wherein the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate location information of the target Ambient IoT device.

In a fifth aspect, an information sending device is provided, which is applied to an Ambient IoT device, including:

A first acquisition module is used to acquire at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request the location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information;

The first sending module is used to send the location-related information of the Ambient IoT device according to at least one of the location inquiry instruction and the inventory command, and the location-related information includes the location information of the Ambient IoT device.

In a sixth aspect, an information sending device is provided, which is applied to a reader/writer, comprising:

The second sending module is used to send the first information, where the first information includes the location information of the reader/writer, the reader/writer is a reader/writer used to access the target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

In the seventh aspect, a terminal (an Ambient IoT device or a reader/writer) is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be executed on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the second aspect or the third aspect are implemented.

In an eighth aspect, a terminal (an Ambient IoT device or a reader/writer) is provided, comprising a processor and a communication interface, wherein the communication interface is used to obtain at least one of a location query command and an inventory command sent by a network-side device, the location query command is used to request location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information; according to at least one of the location query command and the inventory command, location-related information of the Ambient IoT device is sent, and the location-related information includes the location information of the Ambient IoT device; or, the communication interface is used to send first information, the first information includes location information of the reader/writer, the reader/writer is a reader/writer for accessing a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

In a ninth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

In a tenth aspect, a network side device is provided, comprising a processor and a communication interface, wherein the processor is used to obtain location information of an Ambient IoT device by executing a first operation; wherein the first operation includes at least one of the following: obtaining location-related information sent by the Ambient IoT device, the location-related information is sent by the Ambient IoT device according to at least one of a location query command or an inventory command sent by the network side device, the location query instruction is used to request to obtain the location information of the Ambient IoT device, the inventory command is used to instruct the Ambient IoT device to feedback device identification information, and the location-related information includes the location information of the Ambient IoT device; performing a read operation on a memory area of the Ambient IoT device, the memory area of the Ambient IoT device stores the location information of the Ambient IoT device; obtaining first information sent by a reader/writer, the first information includes the location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

In the eleventh aspect, an information acquisition system is provided, comprising: a terminal (Ambient IoT device and/or reader/writer) and a network-side device, wherein the terminal can be used to execute the steps of the method described in the second aspect and/or the third aspect, and the network-side device can be used to execute the steps of the method described in the first aspect.

In the twelfth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented, or the steps of the method described in the third aspect are implemented.

In the thirteenth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

In a fourteenth aspect, a computer program/program product is provided, wherein the computer program/program product is stored in In the storage medium, the computer program/program product is executed by at least one processor to implement the steps of the method described in the first aspect, or the steps of the method described in the second aspect, or the steps of the method described in the third aspect.

In the embodiment of the present application, the network side device obtains the location information of the Ambient IoT device by executing the first operation; wherein the first operation includes at least one of the following: obtaining location related information sent by the Ambient IoT device, the location related information is sent by the Ambient IoT device according to at least one of the location query command or inventory command sent by the network side device, and the location related information includes the location information of the Ambient IoT device; performing a read operation on the memory area of the Ambient IoT device, the memory area of the Ambient IoT device stores the location information of the Ambient IoT device; obtaining the first information sent by the reader/writer, the first information includes the location information of the reader/writer, the reader/writer is a reader/writer for accessing the target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device. The purpose of obtaining the location information of the Ambient IoT device is achieved through the solution of the embodiment of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a structural diagram of a communication system to which an embodiment of the present application can be applied;

FIG2 is a network structure diagram of the Ambient IoT involved in this application;

FIG3 is a schematic diagram showing the instructions and Tag status of the reader;

FIG4 is a schematic diagram showing a flow chart of an information acquisition method according to an embodiment of the present application;

FIG5 is a schematic diagram showing one of the flow charts of the information sending method according to an embodiment of the present application;

FIG6 is a second flow chart of the information sending method according to an embodiment of the present application;

FIG7 is a schematic diagram showing a module of an information acquisition device according to an embodiment of the present application;

FIG8 is a schematic diagram showing one of the modules of the information sending device according to an embodiment of the present application;

FIG9 shows a second schematic diagram of a module of the information sending device according to an embodiment of the present application;

FIG10 is a block diagram showing a structure of a communication device according to an embodiment of the present application;

FIG11 is a block diagram showing a structure of a terminal according to an embodiment of the present application;

FIG12 shows one of the structural block diagrams of the network side device according to an embodiment of the present application;

FIG. 13 shows a second structural block diagram of the network side device according to an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. in the specification and claims of this 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 interchangeable 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" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the objects connected before and after are in an "or" relationship.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, 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) and 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 for the above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6th Generation (6G) communication systems.

FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12 . The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (AR)/virtual reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle user equipment (VUE), a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (a home appliance with wireless communication function, such as a refrigerator, a television, a washing machine or furniture, etc.), a game console, a personal computer (personal computer, PC), a teller machine or a self-service machine and other terminal side devices, and the wearable device includes: a smart watch, a smart bracelet, a smart headset, a smart glasses, a smart jewelry (smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart anklet, a smart anklet, etc.), a smart wristband, a smart clothing, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network device, a radio access network (RAN), a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home B node, a home evolved B node, a transmission reception point (TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited. The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

In order to enable those skilled in the art to better understand the embodiments of the present application, the following description is now provided.

1. Ambient IoT

Ambient IoT includes Passive IoT. Ambient IoT is a new 3GPP IoT technology to be studied. Ambient IoT devices have ultra-low complexity and ultra-low power consumption. Ambient IoT, also known as ambient power-enabled Internet of Things (Ambient power-enabled IoT), is an Internet of Things (IoT) service in which IoT devices are powered by energy harvesting. IoT devices do not have batteries or have limited energy storage capabilities (for example, using a capacitor). Energy sources for energy harvesting include radio waves, light, motion, heat or other suitable energy sources.

The energy of Ambient IoT devices comes from energy harvesting. Regarding energy storage, the device can have the following characteristics:

No batteries, no energy storage. Completely dependent on external energy sources. Or,

Limited energy storage capacity; no battery changing or charging required.

Typically, Ambient IoT devices do not have traditional batteries. The devices themselves use energy harvested from radio waves, which can come from network equipment or user equipment such as mobile phones.

Ambient IoT devices can be classified based on energy source, energy storage capability, passive emission or active emission, etc.

In the related technologies, the passive or active transmission of Ambient IoT has the following communication modes:

(1) Normal operation. Ambient IoT devices have power to operate continuously or for a period of time. The energy can come from continuous energy harvesting, or it may have a certain energy storage capacity, such as being equipped with a capacitor.

(2) Active transmission, supporting device-triggered operations. The device can only support short-term active states and intermittent communication. The device can decide when to communicate with the network. The device does not necessarily monitor the network, that is, it may not monitor the called service for a long time.

Passive transmission only supports on-demand operations initiated by the network. The device cannot actively initiate services.

The network structure of Ambient IoT involved in the embodiment of the present application is shown in FIG2. Among them, the reader/writer involved can be It can be a handheld terminal or a fixed or mobile deployment reading and writing device unit. The ambient IoT device involved can be a terminal device based on passive communication or a terminal device based on active communication. The communication between the reader and the ambient IoT device can be based on the backscatter communication mechanism or the active communication method based on the ambient IoT device generating and transmitting radio waves by itself.

2. Backscatter Communication (BSC);

Backscatter communication refers to the backscatter communication device using the radio frequency signal from other devices or the environment to modulate the signal to transmit its own information. The backscatter communication terminal device (BSC Tag, also known as BSC UE) can be a tag in the traditional radio frequency identification (RFID), an ambient energy storage IoT (Ambient IoT) device, or a passive IoT (Passive-IoT) device.

Backscatter technology is a passive or low-energy technology. Its technical feature is that it can complete the transmission of its own signal by changing the characteristics of the received ambient RF signal, such as phase or amplitude information, to achieve extremely low power or zero power information transmission.

From the perspective of power supply, backscatter communication terminal equipment (BSC Tag) can be divided into three types: fully passive (Passive), semi-passive (Semi-passive) and active (active).

For passive backscatter communication, the BSC Tag first obtains energy (Energy harvesting) from external electromagnetic waves and supplies it to internal circuit modules such as channel coding and modulation. At the same time, it communicates by reflecting and scattering RF signals, thus achieving zero-power communication.

For semi-passive (BSC Tag), its internal circuit module is powered by its own battery and communicates by backscattering RF signals. Since its internal battery is only used for simple channel coding and modulation and other internal circuit modules, the power consumption is very low, so the battery life of BSC Tag can reach more than ten years. All external RF signals can be used for reverse communication without storing part of the energy for power supply.

For the active tag (BSC Tag), its built-in battery is not only used for simple internal circuit operations such as channel coding and modulation, but also for circuit operations such as power amplifier (PA) and low noise amplifier (LNA), thus realizing more complex signal modulation and demodulation of backscatter communication.

3. Information transmission between reader and tag in RFID;

RFID is a traditional backscatter communication system, whose main design goal is to identify the ID and read the data of BSC devices (i.e. tags) within the coverage of the reader. Since RFID was originally used in the automated inventory of large quantities of goods, the process of identifying tags and reading data is also called inventory.

Taking the EPC C1G2RFID system defined by ISO 18000-6c as an example, after the reader sends a query command (Query), the Tag responds (Reply). Taking the Reply as RN16 as an example, the Tag generates a 16-bit random number and sends it to the reader. Then the reader sends the sequence to the Tag through the ACK command. After the Tag successfully verifies the RN16 in the ACK, it sends the subsequent data (such as PC/XPC, EPC, etc.) to the reader.

The reader's instructions and Tag status are shown in Figure 3, and the reader's instructions are shown in Table 1.

Table 1

The status of the Tag tag is shown in Table 2.

Table 2

In a 3GPP network, a user equipment UE in the RRC_IDLE state or the RRC_INACTIVE state can According to the Tracking Area Update (TAU) process, the Mobility Registration Update (MRU) process or the RAN based Notification Area Update (RNAU) process, the location information is reported to the network. However, the Ambient IoT device based on the passive communication mechanism cannot actively initiate a wireless connection request to the network, so the reporting process of the above-mentioned ordinary UE cannot be reused. A new reporting process needs to be developed for the network to determine the location of the Ambient IoT device.

The information acquisition method provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

As shown in FIG4 , the embodiment of the present application provides an information acquisition method, including:

Step 401: The network-side device obtains the location information of the Ambient IoT device by executing the first operation;

The first operation includes at least one of the following:

Item 1: obtaining location-related information sent by an Ambient IoT device, wherein the location-related information is sent by the Ambient IoT device according to at least one of a location query command or an inventory command sent by the network-side device, wherein the location query command is used to request obtaining location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information, and the location-related information includes the location information of the Ambient IoT device;

Item 2: performing a read operation on a memory area of the Ambient IoT device, wherein the memory area of the Ambient IoT device stores location information of the Ambient IoT device;

Item 3: Obtain first information sent by a reader/writer, the first information including location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

For the first item above, the network-side device sends at least one of a location query command and an inventory command to the Ambient IoT device. The Ambient IoT device feeds back location-related information to the network-side device based on at least one of the location query command and the inventory command. This method obtains the location information of the Ambient IoT device through an active inquiry mechanism.

For the second item above, the memory area of the Ambient IoT device stores the location information of the Ambient IoT device, and the network side device directly reads the memory area of the Ambient IoT device to obtain the location information of the Ambient IoT device. This method obtains the location information of the Ambient IoT device by reading and writing the Ambient IoT device through the network side device.

For the third item above, the location information of the reader is sent to the network side device (for example, when the reader identifies the target Ambient IoT device, it sends the location information of the reader to the network side device), so that the network side device determines the location information of the reader as the location information of the target Ambient IoT device. In this method, since the location of the reader is close to the location of the target Ambient IoT device accessed by the reader, the location of the reader is used as the location of the target Ambient IoT device accessed by the reader, that is, the location information of the Ambient IoT device is obtained by assisting the reader.

Optionally, the reader can determine its own position based on the UE positioning technology of the relevant technology, and write its own position information into the Ambient IoT device as the position information of the Ambient IoT device. The information includes: service cell identification information, beam identification information and beam strength, tracking area information of Ambient IoT devices broadcast by the cell, etc. The location information of the reader itself also includes longitude, latitude and altitude information determined by the satellite positioning system.

Optionally, the first information further includes at least one of the following:

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

It should be noted that in the embodiments of the present application, the implementation method is described based on the passive Ambient IoT device operation commands provided by the RFID protocol of the related technology. In the future, the 3GPP protocol may define operation commands with other names but similar functions for Ambient IoT device tracking, which are also covered by the present application.

The above-mentioned network side equipment may include but is not limited to a base station or an AMF.

In the embodiment of the present application, the network side device obtains the location information of the Ambient IoT device by executing the first operation; wherein the first operation includes at least one of the following: obtaining location related information sent by the Ambient IoT device, the location related information is sent by the Ambient IoT device according to at least one of the location query command or inventory command sent by the network side device, and the location related information includes the location information of the Ambient IoT device; performing a read operation on the memory area of the Ambient IoT device, the memory area of the Ambient IoT device stores the location information of the Ambient IoT device; obtaining first information sent by a reader/writer, the first information includes the location information of the reader/writer, the reader/writer is a reader/writer for accessing the target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device. The purpose of obtaining the location information of the Ambient IoT device is achieved through the solution of the embodiment of the present application.

Optionally, before the network side device sends the location query command, the method further includes:

The location identification information of the target coverage area is sent via a broadcast signal, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.

Optionally, the broadcast signal is encoded using pulse interval encoding (PIE).

In the embodiment of the present application, the network side device encodes and modulates the broadcast signal based on a modulation signal (such as frequency modulation, amplitude modulation, phase modulation) and a coding method (such as PIE coding) with low requirements on software and hardware complexity, effectively reducing the processing complexity of the broadcast signal. Optionally, the above-mentioned broadcast signal includes a system message.

In an embodiment of the present application, the network side device sends the above-mentioned location identification information via a broadcast signal, the Ambient IoT device receives the above-mentioned broadcast signal, obtains the above-mentioned location identification information from the broadcast signal, and obtains and saves the location information of the Ambient IoT device based on the location identification information.

Optionally, the location query command includes location identification information of a target coverage area, the target coverage area is a signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined according to the location identification information.

In an embodiment of the present application, the above-mentioned location inquiry command includes location identification information. After receiving the location inquiry command, the Ambient IoT device can obtain the location identification information from the location inquiry command and feedback location-related information to the network side device based on the location identification information.

Optionally, the location identification information in the embodiment of the present application includes at least one of the following:

Cell identification information;

Beam identification information;

Tracking area identification information.

Optionally, the broadcast signal in the embodiment of the present application includes at least one of the following:

A leading training code or a synchronization code, wherein the leading training code or the synchronization code is used for downlink synchronization between the Ambient IoT device and the network side device;

A message type indication field, where the message type indication field is used to indicate the type of the message carried by the broadcast signal, for example, the type of the message carried by the broadcast signal is a system message;

A target indication field (a message existence field indication field), wherein the target indication field is used to indicate whether there is a target information field in the broadcast signal. The target information field is a field in the broadcast signal that carries target information. The target information may be location identification information, or may carry other messages, which are not specifically limited here.

A location information bearing domain, wherein the location information bearing domain is used to carry the location identification information.

Optionally, the above broadcast signal may also include system time information.

In an embodiment of the present application, the broadcast signal includes one or more fixed domains and/or one or more optional domains, and the above-mentioned location information bearing domain can be the above-mentioned fixed domain or the above-mentioned optional domain.

Optionally, in the embodiment of the present application, the location query command includes at least one of the following:

A feedback indication, wherein the feedback indication is used to instruct the Ambient IoT device to feedback location-related information;

The first condition for the Ambient IoT device to send the location related information;

The Ambient IoT device sends time-frequency resource parameters of the location-related information, and the time-frequency resource parameters include at least one of a time domain resource parameter and a frequency domain resource parameter.

Optionally, the first condition includes at least one of the following:

The current location information of the Ambient IoT device is different from the location information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query command, the time from the last sending of location-related information is greater than or equal to a first threshold;

In the case where the Ambient IoT device receives a location query command, the Ambient IoT device receives at least one second location identification information different from the first location identification information, where the first location identification information is the location identification information in the location related information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query command, the cell and beam where the Ambient IoT device is located have not changed compared with the last location related information sent or recorded, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

The Ambient IoT device moves from an area without network coverage to an area with network coverage;

The Ambient IoT device moves from an area without network coverage to an area with network coverage, and the time it stays in the area without network coverage exceeds or equals a third threshold.

Optionally, in the embodiment of the present application, the location-related information further includes at least one of the following:

Identification information of Ambient IoT devices;

Cell identification information;

Identification information of the beam;

Beam signal strength information or strength change information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

The time information of receiving the broadcast signal, the broadcast signal includes the location identification information of the target coverage area, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.

Optionally, before the memory area of the Ambient IoT device is read, or before the network-side device sends an inventory command, the method further includes:

In a case where a first Ambient IoT device is identified within the target coverage area, writing location identification information associated with the target coverage area into the first Ambient IoT device;

Among them, the first Ambient IoT device is an Ambient IoT device that is not within the target coverage range during the target time period; the target time period includes a preset time period before the current moment; the location information of the first Ambient IoT device is determined based on the location identification information; and the target coverage area is the signal coverage area corresponding to the network side device.

In the embodiment of the present application, when the network side device identifies a new Ambient IoT device (i.e., the first Ambient IoT device) in the target coverage area through inventory, the location identification information related to the target coverage area is written into the first Ambient IoT device. The location identification information includes at least one of the following: cell identification information; beam identification information; tracking area identification information.

The solution of the present application is described below with reference to embodiments.

In one embodiment of the present application, the location information of the Ambient IoT device is determined based on an active query mechanism. The following is based on inventory to describe a method for obtaining the area information of the Ambient IoT device based on an active query mechanism. The basic process is as follows:

Step 1: The base station processes the broadcast signal based on a modulation signal (such as frequency modulation, amplitude modulation, phase modulation) and coding (such as PIE coding) with low requirements on software and hardware complexity, and uses the broadcast signal to send one or more of cell identification information, beam identification information and tracking area identification information, wherein the broadcast signal includes at least one of the following parts:

Preamble training code (or synchronization code);

A message type indication field, wherein the message type indication field is used to indicate the type of message carried by the broadcast signal;

a target indication field, the target indication field being used to indicate whether a target information field exists in the broadcast signal;

Among them, the leading training code or synchronization code is used for the Ambient IoT device to obtain downlink synchronization with the base station; the message type indication field is used to indicate the type of message.

Step 2: The Ambient IoT device receives the above broadcast signal, obtains one or more of the cell identification information, beam identification information and tracking area identification information, and saves it as the current location information.

Step 3: The base station sends a location query command, which is used to query the location information of the Ambient IoT device.

The location query command includes at least one of the following:

The Ambient IoT device sends time-frequency resource parameters of the location-related information.

The first condition has been described in detail above and will not be repeated here.

For example, when the current location of the Ambient IoT device changes from the last reported location, the current location information is reported; the location change is manifested in a change in the cell/beam/tracking area; when a location inquiry command is received, the Ambient IoT device compares the current location information with the last reported or stored (or recorded) location information to determine whether the location information has changed. If the location information has changed, the Ambient IoT device participates in the location reporting process initiated by the location inquiry command; otherwise, the Ambient IoT device does not participate in the location reporting process initiated by the location inquiry command.

For example, when an Ambient IoT device receives a location query command, if the time since the last location information report reaches or exceeds the first threshold, it reports the current location information;

For example, when the Ambient IoT device receives a location query command, the Ambient IoT device receives at least one new cell identifier/beam identifier/tracking area identifier relative to the last time the location information was reported;

For example, when an Ambient IoT device receives a location query command, the cell/beam/tracking area where the Ambient IoT device is located has not changed compared to the last time the location information was reported, but the strength of the received broadcast signal has changed by more than a threshold;

For example, an Ambient IoT device moves from an area without network coverage to an area with network coverage. For example, the Ambient IoT device does not receive a broadcast signal within the preset time window of the previous broadcast signal (i.e., it moves to an area without network coverage), and then receives a broadcast signal again (i.e., it moves back to an area with network coverage). When the Ambient IoT device receives a location query command, it reports the location information received from the current broadcast signal.

Step 4: When the Ambient IoT device receives the location query command, it feeds back location-related information to the base station based on the location query command.

Since the number of Ambient IoT devices in the area covered by the broadcast signal may be large, the time for different Ambient IoT devices to send location-related information can be randomly dispersed based on the feedback mechanism predefined in the protocol (for example, based on the slotted ALOHA anti-collision mechanism), thereby improving the efficiency of sending location-related information.

Optionally, the location-related information further includes at least one of the following:

Identification information of Ambient IoT devices;

Cell identification information;

Identification information of the beam;

Beam signal strength information or strength change information;

Event information that triggers the reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

In this embodiment, the network side device sends location identification information, the Ambient IoT device saves the location identification information, and after receiving the location query command, reports the location related information based on the location query command.

In one embodiment of the present application, an Ambient IoT device has a memory for storing location information, and the memory may also store time information for updating the location information. The location information stored in the Ambient IoT device may be location information obtained based on the broadcast signal in the above embodiment. It may also be location information written by a network-side device. For example, a base station may identify a new Ambient IoT device through an inventory process, and when it is determined that the Ambient IoT device has not been to the current inventory area before or has not been to the current inventory area for a period of time, the base station writes the location information of the current inventory area to the memory area of the Ambient IoT device.

In this embodiment, the network side device reads the location information in the Ambient IoT device through a read command. The network side device can also use an inventory command to require the Ambient IoT device to report one or more location information together when feeding back its own device identification information.

As shown in FIG5 , the embodiment of the present application further provides a method for sending information, including:

Step 501: The Ambient IoT device obtains at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information.

The Ambient IoT device in the embodiment of the present application can be a terminal device based on passive communication or a terminal device based on active communication.

Step 502: The Ambient IoT device receives at least one of the location query instruction and the inventory command. Sending location-related information of the Ambient IoT device, where the location-related information includes location information of the Ambient IoT device.

In an embodiment of the present application, an Ambient IoT device obtains at least one of a location query command and an inventory command sent by a network side device, and the Ambient IoT device sends location-related information of the Ambient IoT device based on at least one of the location query command and the inventory command, and the location-related information includes the location information of the Ambient IoT device, thereby achieving the purpose of obtaining the location information of the Ambient IoT device.

Optionally, before the Ambient IoT device obtains the location query command, the method further includes:

Acquire a broadcast signal sent by a network-side device, the broadcast signal including location identification information within a target coverage area, the target coverage area being a signal coverage area corresponding to the network-side device;

Based on the location identification information, the location information of the Ambient IoT device is determined and saved.

Optionally, the location identification information includes at least one of the following:

Cell identification information;

Beam identification information;

Tracking area identification information.

Optionally, the broadcast signal includes at least one of the following:

Message type indication field;

The message existence indication field is used to indicate whether a message exists;

Optionally, the location query command includes at least one of the following:

Optionally, the first condition includes at least one of the following:

When the Ambient IoT device receives a location query command, the time from the last time location-related information was sent is greater than or equal to a first threshold;

When the Ambient IoT device receives a location query instruction, the Ambient IoT device receives at least one second location identification information different from the first location identification information, where the first location identification information is location identification information in the location related information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query instruction, the cell and beam where the Ambient IoT device is located have not changed compared to the last time the location-related information was sent or recorded, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

Identification information of Ambient IoT devices;

Cell identification information;

Beam identification information; beam signal strength information or strength change information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

Optionally, the method of the embodiment of the present application further includes:

Save the location identification information related to the target coverage area written by the network side device, the location information of the target Ambient IoT device is determined based on the location identification information; the target coverage area is the signal coverage area corresponding to the network side device.

It should be noted that the information sending method executed by the Ambient IoT device corresponds to the above-mentioned information acquisition method and will not be repeated here.

As shown in FIG6 , the embodiment of the present application further provides a method for sending information, including:

Step 601: The reader/writer sends first information, wherein the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate location information of the target Ambient IoT device.

Specifically, when the reader finds (recognizes) a new Ambient IoT device, the first information is sent, and the first information is used to indicate the location information of the newly discovered Ambient IoT device. Since the positions of the reader and the Ambient IoT device are close, the position of the reader is used as the position of the Ambient IoT device, that is, the position information of the Ambient IoT device is obtained through the reader.

The reader/writer may be a handheld terminal or a fixed or mobile reader/writer device unit.

In an embodiment of the present application, when the reader/writer identifies the target Ambient IoT device, the location information of the reader/writer is sent to the network side device to indicate the location information of the identified target Ambient IoT device, thereby achieving the purpose of enabling the network side device to obtain the location information of the Ambient IoT device.

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

Optionally, the method of the embodiment of the present application includes:

When the reader/writer determines that there is at least one second Ambient IoT device, sending identification information of the second Ambient IoT device;

The second Ambient IoT device is a target Ambient IoT device that has not been counted in the current inventory process and was counted in the previous inventory process.

Optionally, the method of the embodiment of the present application includes:

The reader/writer performs at least one of an incoming inventory count, an outgoing inventory count, and an inventory count;

The reader/writer performs the inventory counting including: writing second information to the target Ambient IoT device, wherein the second information includes the target Ambient IoT device entering the current address and the time information of entering the current address;

The reader/writer performs the inventory counting including: writing third information to the target Ambient IoT device, wherein the third information includes information about the target Ambient IoT device leaving the current address and the time when the target Ambient IoT device leaves the current address;

The reader/writer performs inventory counting including: writing fourth information to the target Ambient IoT device, wherein the fourth information includes the address information and time information at which the inventory counting occurs.

In one embodiment of the present application, the location information of the Ambient IoT device is obtained by assisting the network-side device through a reader/writer. Specifically, the reader/writer takes inventory of the target Ambient IoT device. When the reader/writer finds a new target Ambient IoT device, it reports the information of the target Ambient IoT device to the base station or AMF, that is, the above-mentioned first information. The first information includes the location information of the reader/writer when the reader/writer identifies the target Ambient IoT device. The location information of the reader/writer is used to indicate the location information of the target Ambient IoT device. The first information also includes at least one of the following:

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

Optionally, in this embodiment, when the reader/writer has finished taking inventory of all Ambient IoT devices, if it is determined that at least one target Ambient IoT device (i.e., the second Ambient IoT device) that was previously inventoried has not been counted in this inventory, the identification information of the target Ambient IoT device that has not been counted is reported to the base station or AMF.

The reader-assisted Ambient IoT device tracking mechanism also includes the types of inventory counts performed by network-configured readers, including incoming inventory counts, outgoing inventory counts, and inventory counts;

For inventory entry, the network can configure the reader to write the current address and corresponding time information to the Ambient IoT device;

For outbound inventory, the network can configure the reader to write the current address and corresponding time information to the Ambient IoT device;

For inventory counting, the network can configure the reader to write the address and Corresponding time information;

Optionally, in the above process, the reader can determine its own position based on the UE positioning technology of the relevant technology, and write its own position information into the Ambient IoT device as the position information of the Ambient IoT device. The reader's own position information includes: service cell identifier information, beam identifier and strength, Ambient IoT device tracking area information broadcast by the cell, etc. The reader's own position information also includes longitude, latitude and altitude information determined by the satellite positioning system.

The information acquisition method provided in the embodiment of the present application can be executed by an information acquisition device. In the embodiment of the present application, the information acquisition device provided in the embodiment of the present application is described by taking the information acquisition method executed by the information acquisition device as an example.

As shown in FIG. 7 , an embodiment of the present application provides an information acquisition device 700, which is applied to a network side device, including:

The first execution module 701 is used to obtain the location information of the Ambient IoT device by executing the first operation;

The first operation includes at least one of the following:

Optionally, the device of the embodiment of the present application further includes:

The third sending module is used to send the location identification information of the target coverage area through a broadcast signal before the first execution module sends the location inquiry command, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.

The first processing module is used to encode the broadcast signal using a pulse width encoding (PIE) method.

Optionally, the location inquiry command includes location identification information of a target coverage area, the target coverage area is a signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.

Cell identification information;

Beam identification information;

Tracking area identification information.

Optionally, the broadcast signal includes at least one of the following:

Optionally, the location query command includes at least one of the following:

Optionally, the first condition includes at least one of the following:

When the Ambient IoT device receives a location query command, the cell and beam where the Ambient IoT device is located have not changed compared to the last location related information sent or stored, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

Identification information of Ambient IoT devices;

Cell identification information;

Identification information of the beam;

Beam signal strength information or strength change information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

The time information of receiving the broadcast signal, the broadcast signal includes the location identification information of the target coverage area, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device The information is determined based on the location identification information.

A first read-write module is used to write location identification information related to the target coverage area into the first Ambient IoT device when the first Ambient IoT device is identified in the target coverage area before the first execution module performs a read operation on the memory area of the Ambient IoT device or before the network side device sends an inventory command;

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

The information sending method provided in the embodiment of the present application can be executed by an information sending device. In the embodiment of the present application, the information sending device provided in the embodiment of the present application is described by taking the information sending method executed by the information sending device as an example.

As shown in FIG8 , the embodiment of the present application further provides an information sending device 800, which is applied to an Ambient IoT device, including:

The first acquisition module 801 is used to acquire at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request the location information of an Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information;

The first sending module 802 is used to send the location-related information of the Ambient IoT device according to at least one of the location query instruction and the inventory command, and the location-related information includes the location information of the Ambient IoT device.

The second acquisition module is used to obtain the location query command sent by the network side device before the first acquisition module obtains the location query command. A broadcast signal, wherein the broadcast signal includes location identification information within a target coverage area, and the target coverage area is a signal coverage area corresponding to the network side device;

The first determination module is used to determine and save the location information of the Ambient IoT device based on the location identification information.

Cell identification information;

Beam identification information;

Tracking area identification information.

Optionally, the broadcast signal includes at least one of the following:

Optionally, the location query command includes at least one of the following:

Optionally, the first condition includes at least one of the following:

When the Ambient IoT device receives a location query instruction, the Ambient IoT device receives at least one second location identification information different from the first location identification information, where the first location identification information is location identification information in the location related information last sent or recorded by the Ambient IoT device;

When the Ambient IoT device receives a location query instruction, the cell and beam where the Ambient IoT device is located have not changed compared to the last time the location-related information was sent or stored, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

Identification information of Ambient IoT devices;

Cell identification information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

Optionally, it also includes:

A storage module is used to save location identification information related to a target coverage area written by the network side device, wherein the location information of the target Ambient IoT device is determined based on the location identification information; the target coverage area is a signal coverage area corresponding to the network side device.

As shown in FIG. 9 , the embodiment of the present application further provides an information sending device 900, which is applied to a reader/writer, including:

The second sending module 901 is used to send the first information, wherein the first information includes the location information of the reader/writer, the reader/writer is a reader/writer used to access the target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

A fourth sending module, configured to send identification information of the second Ambient IoT device when the reader determines that there is at least one second Ambient IoT device;

A second execution module is used to execute at least one of an incoming inventory count, an outgoing inventory count, and an inventory count;

Wherein, executing the inventory check includes: writing second information to the target Ambient IoT device, wherein the second information includes information about the target Ambient IoT device entering the current address and the time when the target Ambient IoT device entered the current address;

Executing the inventory check includes: writing third information to the target Ambient IoT device, wherein the third information includes information about the target Ambient IoT device leaving the current address and the time when the target Ambient IoT device left the current address;

Performing an inventory count includes: writing fourth information to a target Ambient IoT device, wherein the fourth information includes address information and time information at which the inventory count occurs.

The information sending device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or it can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The information sending device provided in the embodiment of the present application can implement the various processes implemented by the method embodiments of Figures 5 to 6 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Optionally, as shown in FIG10 , the embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, the memory 1002 storing programs or instructions that can be run on the processor 1001, for example, when the communication device 1000 is a network side device, the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned information acquisition method embodiment, and can achieve the same technical effect. When the communication device 1000 is a terminal device (reader/writer or Ambient IoT device), the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned information sending method embodiment, and can achieve the same technical effect, to avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a terminal, including a processor and a communication interface, the communication interface is used to obtain at least one of a location query command and an inventory command sent by a network-side device, the location query command is used to request the location information of an Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information; according to at least one of the location query command and the inventory command, the location-related information of the Ambient IoT device is sent, and the location-related information includes the location information of the Ambient IoT device. Alternatively, the communication interface is used to send the first information including the location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

This terminal embodiment corresponds to the above-mentioned Ambient IoT device or reader-writer side method embodiment. Each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 11 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of a processor 1110.

Those skilled in the art will appreciate that the terminal 1100 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1110 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG11 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 1104 may include a graphics processor (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of the static picture or video obtained by the image capture device (such as a camera) in the video capture mode or the image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1101 can transmit the data to the processor 1110 for processing; in addition, the RF unit 1101 can send uplink data to the network side device. Generally, the RF unit 1101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1109 may include a volatile memory or a non-volatile memory, or the memory 1109 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1110.

In one embodiment of the present application, the radio frequency unit 1101 is used to obtain at least one of a location query command and an inventory command sent by a network side device, wherein the location query command is used to request the location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information; according to at least one of the location query command and the inventory command, the location-related information of the Ambient IoT device is sent, and the location-related information includes the location information of the Ambient IoT device.

Optionally, the radio frequency unit 1101 is further configured to obtain a broadcast signal sent by a network side device, wherein the broadcast signal includes Location identification information within a target coverage area, where the target coverage area is a signal coverage area corresponding to the network-side device;

Processor 1110 is used to determine and save the location information of the Ambient IoT device based on the location identification information.

Cell identification information;

Beam identification information;

Tracking area identification information.

Optionally, the broadcast signal includes at least one of the following:

Optionally, the location query command includes at least one of the following:

Optionally, the first condition includes at least one of the following:

Identification information of Ambient IoT devices;

Cell identification information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

Optionally, the processor 1110 is further configured to:

In one embodiment of the present application, the radio frequency unit 1101 is used to send first information, wherein the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.

Optionally, the radio frequency unit 1101 is further configured to:

In the case where it is determined that there is at least one second Ambient IoT device, sending identification information of the second Ambient IoT device;

Optionally, the processor 1110 is further configured to:

Perform at least one of incoming inventory count, outgoing inventory count and inventory count;

In the embodiment of the present application, when the reader recognizes the target Ambient IoT device, the location of the reader is The information is sent to the network side device to indicate the location information of the identified target Ambient IoT device, thereby enabling the network side device to obtain the location information of the Ambient IoT device.

The embodiment of the present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to obtain location information of an ambient IoT device by executing a first operation;

The first operation includes at least one of the following:

The first information sent by the reader is obtained, wherein the first information includes the location information of the reader, the reader is a reader for accessing a target Ambient IoT device, and the location information of the reader is used to indicate the location information of the target Ambient IoT device. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation method of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 12, the network side device 1200 includes: an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124 and a memory 125. The antenna 121 is connected to the radio frequency device 122. In the uplink direction, the radio frequency device 122 receives information through the antenna 121 and sends the received information to the baseband device 123 for processing. In the downlink direction, the baseband device 123 processes the information to be sent and sends it to the radio frequency device 122. The radio frequency device 122 processes the received information and sends it out through the antenna 121.

The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123, which includes a baseband processor.

The baseband device 123 may include, for example, at least one baseband board, on which a plurality of chips are arranged, as shown in FIG12 , wherein one of the chips is, for example, a baseband processor, which is connected to the memory 125 through a bus interface to call a program in the memory 125 and execute the network device operations shown in the above method embodiment.

The network side device may also include a network interface 126, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1200 of the embodiment of the present invention also includes: instructions or programs stored in the memory 125 and executable on the processor 124. The processor 124 calls the instructions or programs in the memory 125 to execute the methods executed by the modules shown in Figure 7 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

Specifically, the embodiment of the present application further provides a network side device. As shown in FIG13 , the network side device 1300 includes: a processor 1301, a network interface 1302, and a memory 1303. The network interface 1302 is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1300 of the embodiment of the present invention further includes: a memory 1303 and a processor The processor 1301 calls the instructions or programs in the memory 1303 to execute the methods executed by each module shown in FIG. 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned information acquisition method or information sending method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned information acquisition method or information sending method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

The embodiments of the present application further provide a computer program/program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned information acquisition method or information sending method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application also provides an information acquisition system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the information sending method described above, and the network side device can be used to execute the steps of the information acquisition method described above.

It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the relevant technology, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, computer, server, air conditioner, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

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-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

A method for obtaining information, comprising:

The network-side device obtains the location information of the Ambient IoT device by executing the first operation;

The first operation includes at least one of the following:

Obtaining location-related information sent by an Ambient IoT device, wherein the location-related information is sent by the Ambient IoT device according to at least one of a location query command or an inventory command sent by the network-side device, wherein the location query command is used to request obtaining location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information, and the location-related information includes the location information of the Ambient IoT device;

Performing a read operation on a memory area of the Ambient IoT device, wherein the memory area of the Ambient IoT device stores location information of the Ambient IoT device;

Obtain first information sent by a reader/writer, wherein the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate location information of the target Ambient IoT device.
The method according to claim 1, wherein, before the network side device sends the location query command, the method further comprises:

The location identification information of the target coverage area is sent via a broadcast signal, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.
The method according to claim 2, further comprising:

The broadcast signal is encoded using a pulse width encoding (PIE) method.
According to the method according to claim 1, wherein the location inquiry command includes location identification information of a target coverage area, the target coverage area is a signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.
The method according to any one of claims 2 to 4, wherein the location identification information includes at least one of the following:

Cell identification information;

Beam identification information;

Tracking area identification information.
The method according to claim 2 or 3, wherein the broadcast signal includes at least one of the following:

A leading training code or a synchronization code, wherein the leading training code or the synchronization code is used for downlink synchronization between the Ambient IoT device and the network side device;

A message type indication field, wherein the message type indication field is used to indicate the type of message carried by the broadcast signal;

a target indication field, the target indication field being used to indicate whether a target information field exists in the broadcast signal;

A location information bearing domain, wherein the location information bearing domain is used to carry the location identification information.
The method according to any one of claims 2 to 6, wherein the location query command includes at least the following: One:

A feedback indication, wherein the feedback indication is used to instruct the Ambient IoT device to feedback location-related information;

The first condition for the Ambient IoT device to send the location related information;

The Ambient IoT device sends time-frequency resource parameters of the location-related information.
The method according to claim 7, wherein the first condition includes at least one of the following:

The current location information of the Ambient IoT device is different from the location information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query command, the time from the last sending of location-related information is greater than or equal to a first threshold;

In the case where the Ambient IoT device receives a location query command, the Ambient IoT device receives at least one second location identification information different from the first location identification information, where the first location identification information is the location identification information in the location related information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query command, the cell and beam where the Ambient IoT device is located have not changed compared to the last location related information sent or stored, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

The Ambient IoT device moves from an area without network coverage to an area with network coverage;

The Ambient IoT device moves from an area without network coverage to an area with network coverage, and the time it stays in the area without network coverage exceeds or equals a third threshold.
The method according to any one of claims 1 to 8, wherein the location-related information further comprises at least one of the following:

Identification information of Ambient IoT devices;

Cell identification information;

Identification information of the beam;

Beam signal strength information or strength change information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

The time information of receiving the broadcast signal, the broadcast signal includes the location identification information of the target coverage area, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.
The method according to any one of claims 1 to 9, wherein before the read operation is performed on the memory area of the Ambient IoT device, or before the network side device sends an inventory command, the method further comprises:

In a case where a first Ambient IoT device is identified within the target coverage area, writing location identification information associated with the target coverage area into the first Ambient IoT device;

The first Ambient IoT device is an Ambient IoT device that is not within the target coverage area within the target time period; the target time period includes a preset time period before the current time; the first The location information of the Ambient IoT device is determined based on the location identification information; the target coverage area is the signal coverage area corresponding to the network side device.
The method according to any one of claims 1 to 10, wherein the first information further includes at least one of the following:

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.
A method for sending information, comprising:

The Ambient IoT device obtains at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request the location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information;

The Ambient IoT device sends location-related information of the Ambient IoT device according to at least one of the location query instruction and the inventory command, and the location-related information includes the location information of the Ambient IoT device.
The method according to claim 12, wherein before the Ambient IoT device receives the location query command, the method further comprises:

Acquire a broadcast signal sent by a network-side device, the broadcast signal including location identification information within a target coverage area, the target coverage area being a signal coverage area corresponding to the network-side device;

Based on the location identification information, the location information of the Ambient IoT device is determined and saved.
The method according to claim 13, wherein the location identification information includes at least one of the following:

Cell identification information;

Beam identification information;

Tracking area identification information.
The method according to claim 13 or 14, wherein the broadcast signal includes at least one of the following:

A leading training code or a synchronization code, wherein the leading training code or the synchronization code is used for downlink synchronization between the Ambient IoT device and the network side device;

A message type indication field, wherein the message type indication field is used to indicate the type of message carried by the broadcast signal;

a target indication field, the target indication field being used to indicate whether a target information field exists in the broadcast signal;

A location information bearing domain, wherein the location information bearing domain is used to carry the location identification information.
The method according to any one of claims 13 to 15, wherein the location query command comprises at least one of the following:

A feedback indication, wherein the feedback indication is used to instruct the Ambient IoT device to feedback location-related information;

The first condition for the Ambient IoT device to send the location related information;

The Ambient IoT device sends time-frequency resource parameters of the location-related information.
The method according to claim 16, wherein the first condition includes at least one of the following:

The current location information of the Ambient IoT device is consistent with the last location information sent or stored by the Ambient IoT device. The location information is different;

When the Ambient IoT device receives a location query command, the time from the last time location-related information was sent is greater than or equal to a first threshold;

When the Ambient IoT device receives a location query instruction, the Ambient IoT device receives at least one second location identification information different from the first location identification information, where the first location identification information is location identification information in the location related information last sent or stored by the Ambient IoT device;

When the Ambient IoT device receives a location query instruction, the cell and beam where the Ambient IoT device is located have not changed compared to the last time the location-related information was sent or stored, and the intensity change value of the broadcast signal received by the Ambient IoT device is greater than a second threshold;

The Ambient IoT device moves from an area without network coverage to an area with network coverage;

The Ambient IoT device moves from an area without network coverage to an area with network coverage, and the time it stays in the area without network coverage exceeds or equals a third threshold.
The method according to any one of claims 12 to 17, wherein the location-related information further comprises at least one of the following:

Identification information of Ambient IoT devices;

Cell identification information;

Beam identification information; beam signal strength information or strength change information;

Event information that triggers reporting of location-related information;

The time information when the location of the Ambient IoT device changes;

The time information of receiving the broadcast signal, the broadcast signal includes the location identification information of the target coverage area, the target coverage area is the signal coverage area corresponding to the network side device, and the location information of the Ambient IoT device is determined based on the location identification information.
The method according to any one of claims 12 to 18, further comprising:

Save the location identification information related to the target coverage area written by the network side device, the location information of the target Ambient IoT device is determined based on the location identification information; the target coverage area is the signal coverage area corresponding to the network side device.
A method for sending information, comprising:

The reader/writer sends first information, which includes location information of the reader/writer. The reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate the location information of the target Ambient IoT device.
The method according to claim 20, wherein the first information further includes at least one of the following:

Identification information of the target Ambient IoT device;

Identification information of the reader/writer;

The reader recognizes the time information of the target Ambient IoT device.
The method according to claim 20 or 21, further comprising:

When the reader/writer determines that there is at least one second Ambient IoT device, sending identification information of the second Ambient IoT device;

The second Ambient IoT device is a target Ambient IoT device that has not been counted in the current inventory process and was counted in the previous inventory process.
The method according to any one of claims 20 to 22, further comprising:

The reader/writer performs at least one of an incoming inventory count, an outgoing inventory count, and an inventory count;

The reader-writer performs the inventory counting including: writing second information to the target Ambient IoT device, wherein the second information includes the target Ambient IoT device entering the current address and the time information of entering the current address;

The reader/writer performs the inventory counting including: writing third information to the target Ambient IoT device, wherein the third information includes information about the target Ambient IoT device leaving the current address and the time when the target Ambient IoT device leaves the current address;

The reader/writer performs inventory counting including: writing fourth information to the target Ambient IoT device, wherein the fourth information includes the address information and time information at which the inventory counting occurs.
An information acquisition device, applied to a network side device, comprising:

A first execution module is used to obtain location information of an Ambient IoT device by executing a first operation;

The first operation includes at least one of the following:

Obtaining location-related information sent by an Ambient IoT device, wherein the location-related information is sent by the Ambient IoT device according to at least one of a location query command or an inventory command sent by the network-side device, wherein the location query command is used to request obtaining location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information, and the location-related information includes the location information of the Ambient IoT device;

Performing a read operation on a memory area of the Ambient IoT device, wherein the memory area of the Ambient IoT device stores location information of the Ambient IoT device;

Obtain first information sent by a reader/writer, wherein the first information includes location information of the reader/writer, the reader/writer is a reader/writer used to access a target Ambient IoT device, and the location information of the reader/writer is used to indicate location information of the target Ambient IoT device.
An information sending device, applied to an ambient IoT device, comprises:

A first acquisition module is used to acquire at least one of a location query command and an inventory command sent by a network-side device, wherein the location query command is used to request the location information of the Ambient IoT device, and the inventory command is used to instruct the Ambient IoT device to feedback device identification information;

The first sending module is used to send the location-related information of the Ambient IoT device according to at least one of the location inquiry instruction and the inventory command, and the location-related information includes the location information of the Ambient IoT device.
An information sending device, applied to a reader/writer, comprising:

The second sending module is used to send the first information, wherein the first information includes the location information of the reader/writer, the reader/writer is a reader/writer used to access the target Ambient IoT device, and the location information of the reader/writer is used to Indicates the location information of the target Ambient IoT device.
A communication device comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, wherein when the program or instruction is executed by the processor, the steps of the information acquisition method as described in any one of claims 1 to 11 are implemented, or the steps of the information sending method as described in any one of claims 12 to 19 are implemented, or the steps of the information sending method as described in any one of claims 20 to 23 are implemented.
A readable storage medium storing a program or instruction, wherein when the program or instruction is executed by a processor, the program or instruction implements the steps of the information acquisition method as described in any one of claims 1 to 11, or implements the steps of the information sending method as described in any one of claims 12 to 19, or implements the steps of the information sending method as described in any one of claims 20 to 23.