WO2024011525A1

WO2024011525A1 - Uplink positioning method and apparatus, and storage medium

Info

Publication number: WO2024011525A1
Application number: PCT/CN2022/105785
Authority: WO
Inventors: 李小龙
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2024-01-18
Also published as: CN117716671A

Abstract

The present application relates to the field of mobile communications. Disclosed are an uplink positioning method and apparatus, and a storage medium. The method comprises: sending to a terminal an RACH resource configuration, wherein the RACH resource configuration is used for configuring a first RACH resource, and the first RACH resource is related to uplink positioning of the terminal. By means of configuring the first RACH resource related to uplink positioning for the terminal, uplink positioning is performed on the terminal. Uplink positioning of the terminal is performed by means of a random access mechanism, so that switching of the terminal to a connected state for uplink positioning in cell reselection can be avoided, thereby reducing power consumption of the terminal.

Description

Uplink positioning method, device and storage medium

Technical field

The present application relates to the field of mobile communications, and in particular to an uplink positioning method, device and storage medium.

Background technique

The fifth generation mobile communication technology (5th Generation Mobile Communication Technology, 5G) New Radio (NR) introduces a variety of positioning technologies to realize the positioning of terminals.

For uplink positioning technology and mixed uplink and downlink positioning technology, the network device needs to configure the uplink positioning reference signal for the terminal, so that the terminal sends the uplink positioning reference signal to the network device according to the uplink positioning reference signal configuration, thereby realizing the positioning of the terminal.

Further discussion and research are needed on the method of configuring uplink positioning reference signals to terminals.

Contents of the invention

Embodiments of the present application provide an uplink positioning method, device and storage medium. The technical solutions are as follows:

According to one aspect of the present application, an uplink positioning method is provided. The method is executed by a network device. The method includes:

Send Random Access Channel (RACH) resource configuration to the terminal;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the terminal.

According to another aspect of the present application, an uplink positioning method is provided. The method is executed by a network device. The method includes:

Send one or more sets of uplink positioning reference signal configurations to the terminal through system information (SI).

According to another aspect of the present application, an uplink positioning method is provided. The method is executed by a terminal, and the method includes:

Receive the RACH resource configuration sent by the network device;

Receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.

According to another aspect of the present application, an uplink positioning device is provided, which device includes:

A sending module, used to send RACH resource configuration to the terminal;

The sending module is used to send one or more sets of uplink positioning reference signal configurations to the terminal through the SI.

The receiving module is used to receive the RACH resource configuration sent by the network device;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the device.

The receiving module is used to receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.

According to another aspect of the present application, a network device is provided. The network device includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, The processor is configured to load and execute the executable instructions to implement the uplink positioning method as described in the above aspect.

According to another aspect of the present application, a terminal is provided, which terminal includes: a processor; a transceiver connected to the processor; a memory for storing executable instructions of the processor; wherein, the The processor is configured to load and execute the executable instructions to implement the uplink positioning method as described in the above aspect.

According to another aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored, and the executable instructions are loaded and executed by a processor to implement the above aspects. Upward positioning method.

According to another aspect of the present application, a chip is provided. The chip includes programmable logic circuits and/or program instructions. When the chip is run on a computer device, it is used to implement the uplink positioning method described in the above aspect. .

According to another aspect of the present application, a computer program product or computer program is provided. The computer program product or computer program includes computer instructions. The computer instructions are stored in a computer-readable storage medium. A processor reads the computer instructions from the computer program. The readable storage medium reads and executes the computer instructions, so that the computer device performs the uplink positioning method described in the above aspect.

The technical solution provided by this application at least includes the following beneficial effects:

Uplink positioning is performed on the terminal by configuring the first RACH resource related to uplink positioning for the terminal. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

Figure 2 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 3 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 4 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 5 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 6 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 7 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 8 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 9 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 10 is a flow chart of an uplink positioning method provided by an exemplary embodiment of the present application;

Figure 11 is a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application;

Figure 12 is a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application;

Figure 13 is a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application;

Figure 14 is a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application;

Figure 15 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the appended claims.

The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Introducing uplink positioning:

5G NR introduces a variety of positioning technologies to achieve positioning of terminals. For uplink positioning technology and mixed uplink and downlink positioning technology, the uplink positioning reference signal sent by the terminal to the network device needs to be used to position the terminal. The uplink positioning reference signal is a sounding reference signal (Sounding Reference Signal, SRS). The network device needs to configure the uplink positioning reference signal for the terminal first before it can receive the uplink positioning reference signal sent by the terminal. The network device can configure the uplink positioning reference signal for the terminal by sending the uplink positioning reference signal configuration to the terminal. The uplink positioning reference signal configuration includes time-frequency resources used by the terminal when transmitting the uplink positioning reference signal.

In NR of R16 (Release 16), the following SRS-based terminal positioning method is introduced:

·Enhance the community identity document (ID) positioning method;

·Uplink arrival time difference positioning method;

·Multi-community round trip time positioning method;

·Uplink angle of arrival positioning method.

In the above method, the uplink positioning reference signal needs to be used. In R16, when positioning the terminal through the above method, the terminal needs to be in the Radio Resource Control (RRC) connected state, which will cause the terminal to consume a lot of power.

In R17 NR, positioning of terminals in the RRC inactive state is supported. When the terminal is in the RRC inactive state, it can send uplink positioning reference signals to the network device. Specifically, when the network device converts the terminal from the RRC connected state to the RRC inactive state, it will configure the uplink positioning reference signal for the terminal through the RRC release message. The detailed configuration corresponding to the uplink positioning reference signal is included in the positioning reference signal radio resource control inactive configuration (srs-PosRRC-InactiveConfig) of the RRC release message. Moreover, when the terminal performs cell reselection, the terminal needs to release the uplink positioning reference signal configured by the network device, that is, release the uplink positioning reference signal configuration. For example, after performing cell reselection, the terminal will delete the locally saved uplink positioning reference signal configuration.

In the NR of R18, the need for low power high accuracy (LPHA) positioning is proposed, that is, the power consumption of terminal positioning needs to be further reduced, and the positioning of RRC idle (idle) state terminals may be introduced. Regarding the method of configuring the uplink positioning reference signal for terminals in the RRC idle state and RRC inactive state, if the R17 mechanism is used, that is, configured through the RRC release message, the uplink positioning reference signal configuration will become invalid after the terminal performs cell reselection. In this configuration mode, the terminal needs to re-enter RRC connected to obtain the uplink positioning reference signal configuration. This will increase the power consumption of the terminal and cannot meet the requirements of LPHA.

Introducing random access of terminals:

Random access of terminals can be divided into two types, including 4-step random access and 2-step random access. The terminal initiates 4-step random access by sending message 1 (Message 1, Msg 1) to the base station. The terminal initiates 2-step random access by sending message A (Message A, Msg A) to the base station. In 4-step random access, after sending Msg 1, the terminal will receive message 2 (Message 2, Msg 2) fed back by the base station. After that, the terminal will send message 3 (Message 1, Msg 3) to the base station and receive the message from the base station. Feedback message 4 (Message 4, Msg 4) to complete random access. In 2-step random access, after sending Msg A, the terminal will receive message B (Message B, Msg B) fed back by the base station, thereby completing random access. Among them, Msg A can be regarded as sending the upstream Msg 1 and Msg 3 in a package, and Msg B can be regarded as sending the downstream Msg 2 and Msg 4 in a package.

The method provided by the embodiment of the present application realizes uplink positioning of the terminal by configuring the random access channel (Random Access Channel, RACH) resource for the terminal for uplink positioning. Compared with the existing solution in which the terminal needs to re-enter the connected state after cell reselection to obtain the uplink positioning reference signal configuration to achieve uplink positioning, the method provided by the embodiment of the present application uses the existing random access mechanism to perform the uplink positioning for the terminal. Uplink positioning can prevent the terminal from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal. The method provided by the embodiments of this application also configures the uplink positioning reference signal for the terminal through the system message, and realizes the use of the broadcast mechanism of the system message to configure the uplink positioning reference signal for the terminal, thereby performing the uplink positioning of the terminal. It can also prevent the terminal from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

Figure 1 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application. The communication system 100 may include: a terminal 101, an access network device 102 and a core network device 103.

The number of terminals 101 is usually multiple, and one or more terminals 101 can be distributed in the cell managed by each access network device 102. The terminal 101 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment (User Equipment, UE), mobile stations ( Mobile Station, MS) and so on. For convenience of description, in the embodiments of this application, the above-mentioned devices are collectively referred to as terminals.

The access network device 102 is a device deployed in the access network to provide wireless communication functions for the terminal 101. The access network equipment 102 may include various forms of macro base stations, micro base stations, relay stations, and access points. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in 5G NR systems, they are called gNodeB or gNB. As communication technology evolves, the name "access network equipment" may change. For convenience of description, in the embodiment of the present application, the above-mentioned devices that provide wireless communication functions for the terminal 101 are collectively referred to as access network equipment. A connection can be established between the access network device 102 and the terminal 101 through an air interface, so that communication, including signaling and data interaction, can be performed through the connection. The number of access network devices 102 may be multiple, and communication between two adjacent access network devices 102 may also be carried out in a wired or wireless manner. The terminal 101 can switch between different access network devices 102, that is, establish connections with different access network devices 102.

The main functions of the core network equipment 103 are to provide user connections, manage users and carry services, and serve as the bearer network to provide an interface to the external network. Access network equipment 102 and core network equipment 103 may be collectively referred to as network equipment. The core network device 103 and the access network device 102 communicate with each other through some kind of air technology. Through the access network device 102, a communication relationship can be established between the terminal 101 and the core network device 103.

The "5G NR system" in the embodiments of this application may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solution described in the embodiments of this application can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system.

Figure 2 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to network equipment. The method includes:

Step 202: Send RACH resource configuration to the terminal.

The RACH resource configuration is used to configure a first RACH resource, the first RACH resource is related to the uplink positioning of the terminal, and the first RACH resource is used to implement the uplink positioning of the terminal. This RACH resource configuration can be regarded as a dedicated configuration, that is, a RACH resource configuration dedicated to uplink positioning. The first RACH resource can be regarded as a dedicated resource, that is, a RACH resource dedicated for uplink positioning.

This RACH resource configuration is different from the existing RACH resource configuration. The existing RACH resource configuration refers to a RACH resource configuration that cannot be implemented or is not dedicated to the uplink positioning of the terminal. The first RACH resource is different from the second RACH resource. The second RACH resource is an existing RACH resource. The existing RACH resource refers to a RACH resource that cannot be implemented or is not dedicated to the uplink positioning of the terminal. That is, after the network device receives the random access preamble (Preamble) sent by the terminal through the first RACH resource, it can determine that the terminal is requesting the uplink positioning reference configuration, or it can determine that the terminal needs to be positioned, so as to perform the corresponding Positioning measurement. When the network device receives the random access preamble sent by the terminal through the second RACH resource, the network device considers that the terminal is performing a normal random access process. That is, the network device will not determine that the terminal is requesting uplink positioning reference signal configuration, or will not determine that the terminal needs to be positioned.

Optionally, the RACH resource configuration is carried in at least one of the following messages:

·System Information (SI);

·RRC messages.

Optionally, the network device sends the SI to the terminal in a broadcast manner, thereby sending the RACH resource configuration to the terminal. For example, the RRC message is an RRC release message.

Optionally, the RACH resource configuration includes at least one of the following information:

·Random access opportunity (RACH occasion);

·Random access preamble index (RACH Preamble index).

Among them, the terminal will select the RACH occasion it uses among one or more RACH occasions, and send Msg 1 or Msg A to the network device in the selected RACH occasion, thereby initiating random access. The RACH Preamble index is used by the terminal to determine the Preamble it uses.

By receiving the RACH resource configuration, the terminal can determine the first RACH resource used for uplink positioning, and can then perform uplink positioning-related processes through the first RACH resource. Optionally, the terminal can request the network device to configure the uplink positioning reference signal for it through the first RACH resource. The network device can also determine the location of the terminal through the first RACH resource, for example, determine the location of the terminal based on information sent by the terminal through the first RACH resource.

For the situation where the terminal requests to configure the uplink positioning reference signal through the first RACH resource:

The terminal sends a configuration request for the uplink positioning reference signal to the network device through the first RACH resource, and the network device receives the configuration request for the uplink positioning reference signal sent by the terminal through the first RACH resource. This configuration request is used to request the network device to configure the uplink positioning reference signal for the terminal. Optionally, the terminal requests the network device to configure an uplink positioning reference signal by initiating a random access process.

Optionally, the configuration request is carried in at least one of the following messages:

·Msg 1;

·MsgA.

After receiving the above configuration request sent by the terminal, the network device will send a random access response message to the terminal.

In a possible implementation, the response message carries the uplink positioning reference signal configuration. By receiving the response message, the terminal can obtain the uplink positioning reference signal configuration configured by the network device, so that the terminal can send the uplink positioning reference signal according to the uplink positioning reference signal configuration, thereby achieving uplink positioning of the terminal.

Optionally, the above response message includes at least one of the following:

·Msg 4;

·Msg B.

In another possible implementation, the response message carries a positioning reference signal configuration identifier. In this case, the network device will also send one or more sets of uplink positioning reference signal configurations to the terminal through SI. Optionally, the SI is sent by broadcast. Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier.

The positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used by the terminal to determine the uplink positioning reference signal configuration used by the terminal in one or more sets of uplink positioning reference signal configurations. That is to say, the terminal will determine the positioning reference signal configuration identifier used by the terminal in one or more sets of uplink positioning reference signal configurations in the SI based on the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. Uplink positioning reference signal configuration.

For example, the terminal configures the uplink positioning reference signal in the SI corresponding to the positioning reference signal configuration identifier carried in the response message, that is, the positioning reference signal configuration identifier in the SI is the same as the positioning reference signal configuration identifier carried in the response message. , determined as the uplink positioning reference signal configuration used by the terminal. In this way, the network device can configure its dedicated uplink positioning reference signal configuration to the terminal, and the terminal can determine the uplink positioning reference signal configuration it uses based on the positioning reference signal configuration identifier sent by the network device through the response message.

Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

Since Msg 2 itself is relatively complex, carrying the positioning reference signal configuration identifier through Msg 2 instead of carrying the uplink positioning reference signal configuration through Msg 2 can simplify the implementation difficulty of the solution and reduce changes to Msg 2.

Optionally, the positioning reference signal configuration identifier corresponding to the above uplink positioning reference signal configuration and the positioning reference signal configuration identifier carried in the response message are random access preamble identifiers (Random Access Preamble Identifier, RAP ID).

It should be noted that if the network device configures the first RACH resource to the terminal through an RRC message (RRC release message), when the terminal sends a configuration request through Msg 1 and the network device sends Msg 2 to the terminal, the random access process of the terminal is completed. . The reason is that the RACH resources configured by the network device to the terminal through RRC messages are exclusive to the terminal, so the terminal does not need to perform contention-based random access.

For the situation where the network device determines the terminal location through the first RACH resource:

The terminal sends a random access preamble (Preamble) to the network device through the first RACH resource, and the network device receives the preamble sent by the terminal through the first RACH resource. This preamble is used by network equipment to locate the terminal. Optionally, the terminal sends the Preamble to the network device through Msg 1 or Msg A based on the first RACH resource.

Optionally, the network device locates the terminal by measuring the Preamble sent by the terminal. For example, the network device locates the terminal by measuring the arrival time of the Preamble.

To sum up, the method provided in this embodiment performs uplink positioning on the terminal by configuring the first RACH resource related to uplink positioning for the terminal. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

Figure 3 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to network equipment. The method includes:

Step 302: Send one or more sets of uplink positioning reference signal configurations to the terminal through SI.

Optionally, the network device sends the SI to the terminal in a broadcast manner, thereby transmitting the set or sets of uplink positioning reference signal configurations to the terminal. After receiving the SI, the terminal can obtain the uplink positioning reference signal configuration configured for it by the network device, so that it can send the uplink positioning reference signal to the network device according to the uplink positioning reference signal configuration, thereby achieving uplink positioning of the terminal.

Optionally, the network device will also receive the configuration request for the uplink positioning reference signal sent by the terminal through the second RACH resource, and send a random access response message to the terminal. The response message carries a positioning reference signal configuration identifier.

The second RACH resource can be regarded as an existing RACH resource. The existing RACH resource refers to a RACH resource that cannot be implemented or is not dedicated to the uplink positioning of the terminal. The terminal may also directly initiate random access based on the second RACH resource without sending a configuration request for the uplink positioning reference signal.

Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

Optionally, among one or more sets of uplink positioning reference signal configurations sent by the network device to the terminal through the SI, one set of uplink positioning reference signal configurations corresponds to one positioning reference signal configuration identifier. The positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used by the terminal to determine the uplink positioning reference signal used by the terminal in one or more sets of uplink positioning reference signal configurations in the SI. configuration. That is to say, the terminal will determine the positioning reference signal configuration identifier used by the terminal in one or more sets of uplink positioning reference signal configurations in the SI based on the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. Uplink positioning reference signal configuration.

Optionally, the positioning reference signal configuration identifier corresponding to the above uplink positioning reference signal configuration, and the positioning reference signal configuration identifier carried in the response message is a RAP ID.

To sum up, the method provided in this embodiment configures the uplink positioning reference signal for the terminal through the system message, and realizes the uplink positioning reference signal for the terminal by using the broadcast mechanism of the system message, thereby performing the uplink positioning of the terminal. It can prevent the terminal from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

Figure 4 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied in the terminal. The method includes:

Step 402: Receive the RACH resource configuration sent by the network device.

This RACH resource configuration is different from the existing RACH resource configuration. The existing RACH resource configuration refers to a RACH resource configuration that cannot be implemented or is not dedicated to the uplink positioning of the terminal. The first RACH resource is different from the second RACH resource. The second RACH resource is an existing RACH resource. The existing RACH resource refers to a RACH resource that cannot be implemented or is not dedicated to the uplink positioning of the terminal.

·SI;

·RRC messages.

·RACH occurrence;

·RACH Preamble index.

The terminal sends a configuration request for the uplink positioning reference signal to the network device through the first RACH resource. This configuration request is used to request the network device to configure the uplink positioning reference signal for the terminal. Optionally, the terminal requests the network device to configure an uplink positioning reference signal by initiating a random access process.

·Msg 1;

·MsgA.

After receiving the above configuration request sent by the terminal, the network device will send a random access response message to the terminal, and the terminal can receive the random access response message sent by the network device.

Optionally, the above response message includes at least one of the following:

·Msg 4;

·Msg B.

In another possible implementation, the response message carries a positioning reference signal configuration identifier. In this case, the terminal will also receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI. Optionally, the SI is sent by broadcast. Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier.

The terminal will determine the uplink positioning reference signal used by the terminal among one or more sets of uplink positioning reference signal configurations in the SI based on the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. configuration.

Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

It should be noted that if the network device configures the first RACH resource to the terminal through an RRC message (RRC release message), when the terminal sends a configuration request through Msg 1 and the network device sends Msg 2 to the terminal, the terminal's random access process is completed. . The reason is that the RACH resources configured by the network device to the terminal through RRC messages are exclusive to the terminal, so there is no need for the terminal to perform contention-based random access.

The terminal sends a random access Preamble to the network device through the first RACH resource. This Preamble is used by network equipment to locate the terminal. Optionally, the terminal sends the Preamble to the network device through Msg 1 or Msg A based on the first RACH resource.

Figure 5 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied in the terminal. The method includes:

Step 502: Receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.

Optionally, the terminal will also send a configuration request for the uplink positioning reference signal to the network device through the second RACH resource, and receive a random access response message sent by the network device. The response message carries a positioning reference signal configuration identifier.

Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

Optionally, among one or more sets of uplink positioning reference signal configurations sent by the network device to the terminal through the SI, one set of uplink positioning reference signal configurations corresponds to one positioning reference signal configuration identifier. The terminal will determine the uplink positioning reference signal used by the terminal among one or more sets of uplink positioning reference signal configurations in the SI based on the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. configuration.

The method provided by the embodiment of the present application performs uplink positioning on the terminal by configuring the first RACH resource related to uplink positioning for the terminal. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, and the power consumption of the terminal can be reduced. Specifically it can be divided into:

(1) The terminal requests the network device to configure the uplink positioning reference signal for it through the first RACH resource, and the network device configures the uplink positioning reference signal for the terminal through the random access response message;

(2) The terminal requests the network device to configure the uplink positioning reference signal for it through the first RACH resource, and the network device configures the uplink positioning reference signal for the terminal through the SI and the random access response message;

(3) The network device determines the terminal location through the first RACH resource.

The method provided by the embodiments of this application also configures the uplink positioning reference signal for the terminal through the system message, and realizes the use of the broadcast mechanism of the system message to configure the uplink positioning reference signal for the terminal, thereby performing the uplink positioning of the terminal. It can also prevent the terminal from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal. Specifically it can be divided into:

(4) The network device directly configures the uplink positioning reference signal for the terminal through SI;

(5) The terminal requests the network device to configure the uplink positioning reference signal for it through the second RACH resource, and the network device configures the uplink positioning reference signal for the terminal through the SI and the random access response message.

The above five solutions are introduced below through five examples:

For the first situation above:

Figure 6 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to a system as shown in Figure 1. The method includes:

Step 602: The network device sends RACH resource configuration to the terminal.

·SI;

·RRC messages.

·RACH occurrence;

·RACH Preamble index.

By receiving the RACH resource configuration, the terminal can determine the first RACH resource used for uplink positioning, and can then perform uplink positioning-related processes through the first RACH resource.

Step 604: The terminal sends an uplink positioning reference signal configuration request to the network device through the first RACH resource.

This configuration request is used to request the network device to configure the uplink positioning reference signal for the terminal. Optionally, the terminal requests the network device to configure an uplink positioning reference signal by initiating a random access process. Optionally, the configuration request is carried in at least one of the following messages:

·Msg 1;

·MsgA.

Step 606: The network device sends a random access response message to the terminal, and the response message carries the uplink positioning reference signal configuration.

After receiving the above configuration request sent by the terminal, the network device will send a random access response message to the terminal. By receiving the response message, the terminal can obtain the uplink positioning reference signal configuration configured by the network device, so that the terminal can send the uplink positioning reference signal according to the uplink positioning reference signal configuration, thereby achieving uplink positioning of the terminal.

Optionally, the above response message includes at least one of the following:

·Msg 4;

·Msg B.

To sum up, the method provided by this embodiment configures the first RACH resource related to uplink positioning for the terminal, thereby enabling the terminal to request the network device to configure the uplink positioning reference signal for it through the first RACH resource. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

For the second situation above:

Figure 7 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to a system as shown in Figure 1. The method includes:

Step 702: The network device sends one or more sets of uplink positioning reference signal configurations to the terminal through SI.

Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier. Optionally, the SI is sent by broadcast.

Step 704: The network device sends RACH resource configuration to the terminal.

The RACH resource configuration is used to configure a first RACH resource, the first RACH resource is related to the uplink positioning of the terminal, and the first RACH resource is used to implement the uplink positioning of the terminal. This RACH resource configuration can be regarded as a dedicated configuration, that is, a RACH resource configuration dedicated to uplink positioning. The first RACH resource can be regarded as a dedicated resource, that is, a RACH resource dedicated to uplink positioning.

·SI;

·RRC messages.

·RACH occurrence;

·RACH Preamble index.

Optionally, the RACH resource configuration and the above one or more sets of uplink positioning reference signal configurations are carried in the same or different SIs.

Step 706: The terminal sends an uplink positioning reference signal configuration request to the network device through the first RACH resource.

This configuration request is used to request the network device to configure the uplink positioning reference signal for the terminal. Optionally, the terminal requests the network device to configure an uplink positioning reference signal by initiating a random access process.

·Msg 1;

·MsgA.

Step 708: The network device sends a random access response message to the terminal, and the response message carries the positioning reference signal configuration identifier.

After receiving the above configuration request sent by the terminal, the network device will send a random access response message to the terminal, and the terminal can receive the random access response message sent by the network device. The terminal will determine the uplink positioning reference signal used by the terminal among one or more sets of uplink positioning reference signal configurations in the SI based on the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. configuration.

Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

To sum up, the method provided in this embodiment performs uplink positioning on the terminal by configuring the first RACH resource related to uplink positioning for the terminal. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal. In addition, by configuring the uplink positioning reference signal for the terminal through the SI and the random access response message, it is possible to configure the terminal with its own dedicated uplink positioning reference signal.

For the third situation above:

Figure 8 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to a system as shown in Figure 1. The method includes:

Step 802: The network device sends RACH resource configuration to the terminal.

·SI;

·RRC messages.

·RACH occurrence;

·RACH Preamble index.

Step 804: The terminal sends the preamble to the network device through the first RACH resource.

This preamble is used by network equipment to locate the terminal. Optionally, the terminal sends the preamble to the network device through Msg 1 or Msg A based on the first RACH resource.

To sum up, the method provided by this embodiment configures the first RACH resource related to uplink positioning for the terminal, thereby enabling the terminal to send the preamble to the network device through the first RACH resource, so that the network device can determine based on the preamble. The location of the terminal. By using the random access mechanism for uplink positioning of the terminal, the terminal can be prevented from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal.

For the fourth situation above:

Figure 9 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to a system as shown in Figure 1. The method includes:

Step 902: The network device sends one or more sets of uplink positioning reference signal configurations to the terminal through SI.

For the fifth situation above:

Figure 10 shows a flow chart of an uplink positioning method provided by an embodiment of the present application. This method can be applied to a system as shown in Figure 1. The method includes:

Step 1002: The network device sends one or more sets of uplink positioning reference signal configurations to the terminal through SI.

Among the one or more sets of uplink positioning reference signal configurations sent by the network device to the terminal through the SI, one set of uplink positioning reference signal configurations corresponds to one positioning reference signal configuration identifier. Optionally, the network device sends the SI to the terminal in a broadcast manner.

Step 1004: The terminal sends an uplink positioning reference signal configuration request to the network device through the second RACH resource.

This configuration request is used to request the network device to configure the uplink positioning reference signal for the terminal. The second RACH resource can be regarded as an existing RACH resource. The existing RACH resource refers to a RACH resource that cannot be implemented or is not dedicated to the uplink positioning of the terminal. The terminal may also directly initiate random access based on the second RACH resource without sending a configuration request for the uplink positioning reference signal.

Step 1006: The network device sends a random access response message to the terminal, and the response message carries the positioning reference signal configuration identifier.

After receiving the above configuration request sent by the terminal, the network device will send a random access response message to the terminal, and the terminal can receive the random access response message sent by the network device. Optionally, the above response message includes at least one of the following:

·Msg 2;

·Msg 4;

·Msg B.

To sum up, the method provided in this embodiment configures the uplink positioning reference signal for the terminal through the system message, and realizes the uplink positioning reference signal for the terminal by using the broadcast mechanism of the system message, thereby performing the uplink positioning of the terminal. It can prevent the terminal from switching to the connected state for uplink positioning in the case of cell reselection, thereby reducing the power consumption of the terminal. In addition, by configuring the uplink positioning reference signal for the terminal through the SI and the random access response message, it is possible to configure the terminal with its own dedicated uplink positioning reference signal.

It should be noted that the order of the method steps provided by the embodiments of the present application can be appropriately adjusted, the steps can also be added or deleted according to the situation, and different steps can be freely combined to form new embodiments. Any person familiar with the technical field can easily think of changing methods within the technical scope disclosed in this application, which should be covered by the protection scope of this application, and therefore will not be described again.

Figure 11 shows a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application. As shown in Figure 11, the device includes:

Sending module 1101, used to send RACH resource configuration to the terminal;

In an optional design, the device also includes:

The receiving module 1102 is configured to receive a configuration request for an uplink positioning reference signal sent by the terminal through the first RACH resource.

In an optional design, the sending module 1101 is used to:

Send a random access response message to the terminal;

Wherein, the response message carries the uplink positioning reference signal configuration.

In an optional design, the sending module 1101 is used to:

Send a random access response message to the terminal;

Wherein, the response message carries a positioning reference signal configuration identifier.

In an optional design, the sending module 1101 is used to:

Send one or more sets of uplink positioning reference signal configurations to the terminal through SI;

Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier.

In an optional design, the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used to determine the uplink positioning reference signal configuration of the terminal.

In an optional design, the positioning reference signal configuration identifier is a RAP ID.

In an optional design, the device also includes:

Receiving module 1102, configured to receive the preamble sent by the terminal through the first RACH resource;

Wherein, the preamble is used by the device to locate the terminal.

In an optional design, the RACH resource configuration is carried in at least one of the following messages:

SI;

RRC message.

In an optional design, the RACH resource configuration includes at least one of the following information:

Random access timing;

Random access preamble index.

Figure 12 shows a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application. As shown in Figure 11, the device includes:

The sending module 1201 is configured to send one or more sets of uplink positioning reference signal configurations to the terminal through SI.

In an optional design, the device also includes:

The receiving module 1202 is configured to receive the configuration request of the uplink positioning reference signal sent by the terminal through the second RACH resource;

The sending module 1201 is configured to send a random access response message to the terminal;

In an optional design, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier;

The positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used to determine the uplink positioning reference signal configuration of the terminal.

Figure 13 shows a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application. As shown in Figure 11, the device includes:

The receiving module 1301 is used to receive the RACH resource configuration sent by the network device;

In an optional design, the device also includes:

The sending module 1302 is configured to send an uplink positioning reference signal configuration request to the network device through the first RACH resource.

In an optional design, the receiving module 1301 is used for:

Receive a random access response message sent by the network device;

In an optional design, the receiving module 1301 is used for:

Receive a random access response message sent by the network device;

In an optional design, the receiving module 1301 is used for:

Receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI;

In an optional design, the device also includes:

Determining module 1303, configured to determine, in the one or more sets of uplink positioning reference signal configurations, according to the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. Uplink positioning reference signal configuration of the device.

In an optional design, the device also includes:

Sending module 1302, configured to send a preamble to the network device through the first RACH resource;

The preamble is used by the network device to locate the device.

SI;

RRC message.

Random access timing;

Random access preamble index.

Figure 14 shows a structural block diagram of an uplink positioning device provided by an exemplary embodiment of the present application. As shown in Figure 11, the device includes:

The receiving module 1401 is configured to receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.

In an optional design, the device also includes:

A sending module 1402, configured to send a configuration request for an uplink positioning reference signal to the network device through the second RACH resource;

The receiving module 1401 is configured to receive a random access response message sent by the network device;

In an optional design, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier; the device also includes:

Determining module 1403, configured to determine, in the one or more sets of uplink positioning reference signal configurations, according to the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration. Uplink positioning reference signal configuration of the device.

It should be noted that when the device provided in the above embodiment implements its functions, only the division of the above functional modules is used as an example. In practical applications, the above functions can be allocated to different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.

Regarding the devices in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

Figure 15 shows a schematic structural diagram of a communication device (terminal or network device) provided by an exemplary embodiment of the present application. The communication device 150 includes: a processor 1501, a receiver 1502, a transmitter 1503, a memory 1504 and a bus 1505.

The processor 1501 includes one or more processing cores. The processor 1501 executes various functional applications and information processing by running software programs and modules.

The receiver 1502 and the transmitter 1503 can be implemented as a communication component, and the communication component can be a communication chip.

Memory 1504 is connected to processor 1501 through bus 1505.

The memory 1504 can be used to store at least one instruction, and the processor 1501 is used to execute the at least one instruction to implement each step in the above method embodiment.

Additionally, memory 1504 may be implemented by any type of volatile or non-volatile storage device, or combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable Read-only memory (Electrically-Erasable Programmable Read-Only Memory, EEPROM), Erasable Programmable Read-Only Memory (EPROM), Static Random Access Memory (SRAM), read-only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).

When the communication device is implemented as a terminal, the processor and transceiver in the communication device involved in the embodiment of the present application can be implemented together as a communication chip, or the transceiver alone forms a communication chip. Wherein, the transmitter in the transceiver performs the sending steps performed by the terminal in any of the above methods, the receiver in the transceiver performs the receiving steps performed by the terminal in any of the above methods, and the processor performs the sending The steps other than the receiving step will not be described here.

When the communication device is implemented as a network device, the processor and transceiver in the communication device involved in the embodiment of the present application can be implemented together as a communication chip, or the transceiver alone forms a communication chip. Wherein, the transmitter in the transceiver performs the sending step performed by the network device in any of the above methods, the receiver in the transceiver performs the receiving step performed by the network device in any of the above methods, and the processor Perform steps other than sending and receiving steps, which will not be described here.

In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least a program, a code set or an instruction set is stored, and the at least one instruction, the At least one program, the code set or the instruction set is loaded and executed by the processor to implement the uplink positioning method provided by each of the above method embodiments.

In an exemplary embodiment, a chip is also provided. The chip includes programmable logic circuits and/or program instructions. When the chip is run on a communication device, it is used to implement the uplink provided by each of the above method embodiments. Positioning method.

In an exemplary embodiment, a computer program product is also provided. When the computer program product is run on a processor of a computer device, the computer device performs the above uplink positioning method.

Those skilled in the art should realize that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Storage media can be any available media that can be accessed by a general purpose or special purpose computer.

The above are only exemplary embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims

An uplink positioning method, characterized in that the method is executed by a network device, and the method includes:

Send random access channel RACH resource configuration to the terminal;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the terminal.
The method of claim 1, further comprising:

Receive a configuration request for an uplink positioning reference signal sent by the terminal through the first RACH resource.
The method of claim 2, further comprising:

Send a random access response message to the terminal;

Wherein, the response message carries the uplink positioning reference signal configuration.
The method of claim 2, further comprising:

Send a random access response message to the terminal;

Wherein, the response message carries a positioning reference signal configuration identifier.
The method of claim 4, further comprising:

Send one or more sets of uplink positioning reference signal configurations to the terminal through the system message SI;

Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier.
The method according to claim 5, characterized in that the positioning reference signal configuration identifier carried by the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used to determine the uplink positioning reference of the terminal. Signal configuration.
The method according to claim 5, characterized in that the positioning reference signal configuration identifier is a random access preamble identifier RAP ID.
The method of claim 1, further comprising:

Receive the preamble sent by the terminal through the first RACH resource;

The preamble is used by the network device to locate the terminal.
The method according to any one of claims 1 to 8, characterized in that the RACH resource configuration is carried in at least one of the following messages:

SI;

Radio Resource Control RRC message.
The method according to any one of claims 1 to 8, characterized in that the RACH resource configuration includes at least one of the following information:

Random access timing;

Random access preamble index.
An uplink positioning method, characterized in that the method is executed by a network device, and the method includes:

Send one or more sets of uplink positioning reference signal configurations to the terminal through the system message SI.
The method according to claim 11, characterized in that, the method further includes:

Receive a configuration request for an uplink positioning reference signal sent by the terminal through the second RACH resource;

Send a random access response message to the terminal;

Wherein, the response message carries a positioning reference signal configuration identifier.
The method according to claim 12, characterized in that one set of uplink positioning reference signal configurations corresponds to one positioning reference signal configuration identifier;

The positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration are used to determine the uplink positioning reference signal configuration of the terminal.
The method according to claim 12, characterized in that the positioning reference signal configuration identifier is a RAP ID.
An uplink positioning method, characterized in that the method is executed by a terminal, and the method includes:

Receive the random access channel RACH resource configuration sent by the network device;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the terminal.
The method of claim 15, further comprising:

Send a configuration request for an uplink positioning reference signal to the network device through the first RACH resource.
The method of claim 16, further comprising:

Receive a random access response message sent by the network device;

Wherein, the response message carries the uplink positioning reference signal configuration.
The method of claim 16, further comprising:

Receive a random access response message sent by the network device;

Wherein, the response message carries a positioning reference signal configuration identifier.
The method of claim 18, further comprising:

Receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI;

Among them, a set of uplink positioning reference signal configurations corresponds to a positioning reference signal configuration identifier.
The method of claim 19, further comprising:

According to the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration, the uplink positioning of the terminal is determined in the set or multiple sets of uplink positioning reference signal configurations. Reference signal configuration.
The method according to claim 19, characterized in that the positioning reference signal configuration identifier is a RAP ID.
The method of claim 15, further comprising:

Send a preamble to the network device through the first RACH resource;

Wherein, the preamble is used by the network device to locate the terminal.
The method according to any one of claims 15 to 22, characterized in that the RACH resource configuration is carried in at least one of the following messages:

SI;

RRC message.
The method according to any one of claims 15 to 22, characterized in that the RACH resource configuration includes at least one of the following information:

Random access timing;

Random access preamble index.
An uplink positioning method, characterized in that the method is executed by a terminal, and the method includes:

Receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.
The method of claim 25, further comprising:

Send a configuration request for the uplink positioning reference signal to the network device through the second RACH resource;

Receive a random access response message sent by the network device;

Wherein, the response message carries a positioning reference signal configuration identifier.
The method according to claim 26, characterized in that one set of uplink positioning reference signal configurations corresponds to one positioning reference signal configuration identifier; the method further includes:

According to the positioning reference signal configuration identifier carried in the response message and the positioning reference signal configuration identifier corresponding to the uplink positioning reference signal configuration, the uplink positioning of the terminal is determined in the set or multiple sets of uplink positioning reference signal configurations. Reference signal configuration.
The method according to claim 26, characterized in that the positioning reference signal configuration identifier is a RAP ID.
An upward positioning device, characterized in that the device includes:

A sending module, used to send RACH resource configuration to the terminal;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the terminal.
An upward positioning device, characterized in that the device includes:

The sending module is used to send one or more sets of uplink positioning reference signal configurations to the terminal through the SI.
An upward positioning device, characterized in that the device includes:

The receiving module is used to receive the RACH resource configuration sent by the network device;

Wherein, the RACH resource configuration is used to configure a first RACH resource, and the first RACH resource is related to the uplink positioning of the device.
An upward positioning device, characterized in that the device includes:

The receiving module is used to receive one or more sets of uplink positioning reference signal configurations sent by the network device through the SI.
A network device, characterized in that the network device includes:

processor;

a transceiver coupled to said processor;

memory for storing executable instructions for the processor;

Wherein, the processor is configured to load and execute the executable instructions to implement the uplink positioning method according to any one of claims 1 to 14.
A terminal, characterized in that the terminal includes:

processor;

a transceiver coupled to said processor;

memory for storing executable instructions for the processor;

Wherein, the processor is configured to load and execute the executable instructions to implement the uplink positioning method according to any one of claims 15 to 28.
A computer-readable storage medium, characterized in that executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to implement any one of claims 1 to 28 Upward positioning method.