WO2023284271A1

WO2023284271A1 - Communication sensing method and device for terminal in unactivated state

Info

Publication number: WO2023284271A1
Application number: PCT/CN2022/070661
Authority: WO
Inventors: 焦慧颖; 王志勤; 杜滢; 魏贵明; 徐菲; 沈霞; 闫志宇; 刘晓峰
Original assignee: 中国信息通信研究院
Priority date: 2021-07-16
Filing date: 2022-01-07
Publication date: 2023-01-19
Also published as: CN113727436B; CN113727436A

Abstract

Disclosed in the present application is a communication sensing method for a terminal in an inactivated state. Downlink information contains indication information, wherein the indication information is used for configuring an uplink reference signal; and the uplink reference signal is a random access signal dedicated to sensing. Further disclosed in the present application are a device and system for implementing the method. By means of the present application, the problem of how a terminal in an idle state realizes communication sensing is solved.

Description

A terminal inactive state communication sensing method and device

This application claims the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on July 16, 2021, with the application number 202110809178.0, and the title of the invention is "A Method and Device for Communication Perception in an Inactive State of a Terminal". The entire contents of are incorporated by reference in this application.

technical field

The present application relates to the technical field of mobile communication, and in particular to a communication sensing method and device in an inactive state of a terminal.

Background technique

In addition to the RRC connected state and the RRC idle state, the NR system also introduces the RRC inactive state. In the RRC inactive state, the terminal (UE) retains the working context in the last serving cell, and allows the terminal to move within a certain range without notifying the network which cell it is in. The NG interface connection is reserved on the network side, and the NAS signaling connection is reserved together with the terminal. When the terminal needs to send or receive data, it only needs to use the RRC connection recovery process to restore the signaling bearer (SRB) and data bearer (DRB), and then start sending or receiving data directly, so the control plane delay of the NR system It becomes the time delay of the RRC connection recovery process. In the RRC inactive state, in addition to the discontinuous reception (DRX) cycle broadcast in the system message, the terminal can also obtain a DRX cycle shorter than this common DRX cycle, the purpose is to allow different terminals to respond to paging There are different behaviors, such as configuring a shorter DRX cycle for UEs with shorter delay requirements, so that the terminal can respond to network paging faster when the RRC is inactive.

In Rel-16, if a terminal that is not in the RRC connection state wants to perform RAT-related perception positioning, it must first enter the RRC connection mode. This may limit the number of devices that can sense a location at the same time, and increase latency and power consumption. Therefore, it is necessary to support the radio access termination (RAT)-related cognitive positioning and communication perception of the terminal in the RRC inactive state.

Contents of the invention

The present application proposes a communication sensing method and device in an inactive state of a terminal, which solves the problem of how to perform sensing positioning and sensing communication of a terminal in an idle state or in an inactive state in the prior art.

In the first aspect, the embodiment of the present application provides a communication sensing method in an inactive state of a terminal, including the following steps:

The downlink information includes indication information, and the indication information is used to configure the uplink reference signal;

The uplink reference signal is a random access signal dedicated to perception.

Further, the indication information is used to indicate at least one of the following parameters: an uplink random access format, a logic number of a random access sequence, a cyclic shift step of the random access sequence, and dedicated time-frequency domain resources.

Optionally, the downlink information is a response to a random access request; the random access request includes an identifier dedicated to sensing signals.

Optionally, the downlink information is a paging message. Further preferably, the downlink control signaling includes scheduling information of the paging message, indicating the time-frequency domain resource location of the paging message; the downlink control signaling includes an identifier dedicated to the sensing signal.

In any embodiment of the terminal inactive state communication sensing method in this application, preferably, the format of the uplink reference signal is PRACH Format 1, which is used for outdoor communication, or the format of the uplink reference signal is PRACH Format 2 , used for indoor communication, or the format of the uplink reference signal is PRACH Format 3, used when the moving speed exceeds the set threshold.

In any embodiment of the terminal inactive state communication sensing method of the present application, preferably, the dedicated time-frequency resource of the uplink reference signal covers multiple serving cells.

In any embodiment of the terminal inactive state communication sensing method of the present application, preferably, the number of generated sequences of the uplink reference signal is a multiple of the number of ordinary random access signal sequences.

Further, the method of the first aspect of the present application is used for terminal equipment, including the following steps:

receiving the downlink information;

Determine the configuration of the uplink reference signal according to the indication information;

The random access signal is sent according to the configuration.

Preferably, the following step is further included: the terminal device initiates a random access request, and the random access request includes an identifier dedicated to sensing signals.

Alternatively, the method includes the following steps: the terminal device determines a paging occasion according to the paging resource configuration dedicated to perception in the public paging search space; the downlink information is the paging received by the terminal device at the paging occasion information.

Further, the method of the first aspect of the present application is used for network equipment, including the following steps:

Receive a random access request, where the random access request includes an identifier dedicated to the sensing signal; and send the downlink information for configuring an uplink reference signal.

Alternatively, the following steps are included: sending downlink control signaling, the downlink control signaling includes an identifier dedicated to the sensing signal; the downlink control signaling is used to indicate the location of the dedicated time-frequency domain resource where the paging message is located; Sending a paging message using the dedicated time-frequency resource as the downlink information for configuring an uplink reference signal.

In the second aspect, the embodiments of the present application further provide a terminal device configured to implement the method described in any one of the embodiments of the first aspect of the present application. The terminal device is configured to: receive the downlink information; determine the configuration of the uplink reference signal according to the indication information; and send a random access signal according to the configuration.

In a third aspect, the embodiments of the present application further provide a network device configured to implement the method described in any one of the embodiments of the first aspect of the present application. The network device is configured to: receive a random access request, where the random access request includes an identifier dedicated to a sensing signal; and send the downlink information for configuring an uplink reference signal. Alternatively, the network device is configured to: send downlink control signaling, where the downlink control signaling includes an identifier dedicated to sensing signals; the downlink control signaling is used to indicate the dedicated time-frequency domain resource where the paging message is located Location: sending a paging message on the dedicated time-frequency resource as the downlink information for configuring an uplink reference signal.

In a fourth aspect, the present application also proposes a communication device, including: a memory, a processor, and a computer program stored in the memory and operable on the processor, when the computer program is executed by the processor Implement the steps of the method described in any one of the embodiments of the present application.

In the fifth aspect, the present application also proposes a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any one of the embodiments of the present application are implemented. .

In a sixth aspect, the present application further proposes a mobile communication system, including at least one network device as described in any embodiment of the present application and/or at least one terminal device as described in any embodiment of the present application.

The above at least one technical solution adopted in the embodiment of the present application can achieve the following beneficial effects:

The patent of the present invention proposes uplink sensing and positioning technology for inactive state terminals, using uplink random access signals for base station detection and perception of terminal positions and states. On the one hand, it solves the problem that the terminal in the inactive state cannot perceive and locate, and on the other hand, it reuses the existing uplink signal and sensing process as much as possible.

Description of drawings

FIG. 1 is a flow chart of an embodiment of a terminal inactive state communication sensing method of the present application;

FIG. 2 is a flow chart of another embodiment of the terminal inactive state communication sensing method of the present application;

FIG. 3 is a flow chart of an embodiment of the method of the present application applied to a network device;

FIG. 4 is a flow chart of another embodiment of the method of the present application applied to a network device;

FIG. 5 is a flow chart of an embodiment of the application method applied to a terminal device;

FIG. 6 is a flow chart of another embodiment of the method of the present application applied to a terminal device;

FIG. 7 is a schematic diagram of an embodiment of a network device;

FIG. 8 is a schematic diagram of an embodiment of a terminal device;

FIG. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention;

Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention.

detailed description

The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

FIG. 1 is a flowchart of an embodiment of a method for sensing communication in an inactive state of a terminal according to the present application.

An embodiment of the present application provides a terminal idle state or inactive state communication sensing method, including the following steps:

Step 101, a random access request dedicated to sensing signals occurs.

The terminal starts a random access procedure dedicated to perception. For example, the random access request includes an identifier dedicated to the sensing signal, so that the network device can send configuration information dedicated to the sensing signal to the terminal.

Step 102, the downlink information is a response to the random access request.

The downlink information includes indication information, and the indication information is used to configure the uplink reference signal. The configuration information includes a random access sequence dedicated to sensing, an access format and time-frequency resources used for transmission. For example, the indication information is used to indicate at least one of the following parameters: an uplink random access format, logic for generating a random access sequence, and dedicated time-frequency domain resources.

The uplink random access format, for example, may be PRACH Format 1, PRACH Format 2 or PRACH Format 3.

The logic for generating the random access sequence includes the logic number of the random access sequence and the cyclic shift step size Ncs.

The configured perceptual-specific random access format, time-frequency resource and sequence preamble meet the requirement of large coverage, and the dedicated time-frequency resource of the uplink reference signal covers multiple serving cells. In addition, the number of sequences of the sensed uplink signals is extended. Preferably, the number of generated sequences of the uplink reference signal is a multiple of the number of ordinary random access signal sequences. For example, the sequence generation for perceptual transmission is a multiple of 64 the current number of random access sequences, and it is recommended to generate a sequence that is 64 times the number of existing sequences, so that multiple cells can receive perceptual transmission sequences and reduce the number of perceptual signals sent by different terminals collisions and uplink interference.

Step 103, downlink information identification.

The random access signal is used for uplink sensing. In order to distinguish it from the normal random access signal and the random access signal used for positioning, the terminal receives the uplink random access format, signal generation logic, and dedicated timing configured by the base station for positioning. audio resources.

Step 104, transmitting an uplink reference signal dedicated for perception.

The uplink reference signal is transmitted according to the uplink random access format, signal generation logic, and dedicated time-frequency domain resources. The uplink reference signal is a random access signal dedicated to perception.

Preferably, when used for outdoor communication, the format of the uplink reference signal is PRACH Format 1, or, when used for indoor communication, the format of the uplink reference signal is PRACH Format 2, or, when the moving speed exceeds the set When the threshold is set, the format of the uplink reference signal is PRACH Format 3.

Step 201, downlink control information transmission.

The downlink control signaling includes scheduling information for the paging message, indicating the location of the time-frequency domain resource where the paging message is located; the downlink control signaling includes an identifier dedicated to the sensing signal. In this way, the terminal device can determine that the time-frequency resource indicated by the received scheduling information is used to send configuration information dedicated to sensing signals.

Step 202, downlink information transmission.

The downlink information is a paging message. The downlink information includes indication information, and the indication information is used to configure the uplink reference signal. The indication information is used to indicate at least one of the following parameters: an uplink random access format, logic for generating random access sequences, and dedicated time-frequency domain resources.

Step 203, downlink information identification.

The terminal receives the positioning-specific paging message, where the information is configuration information of a random access signal configured for sensing, and the configuration information includes a random access sequence dedicated for sensing and a time-frequency resource for sending.

Step 204, transmit an uplink reference signal dedicated for perception.

For example, the terminal device receives the downlink information, and determines the uplink random access format, signal generation logic, and dedicated time-frequency domain resources according to the indication of the downlink information. The terminal transmits the uplink reference signal according to the uplink random access format, signal generation logic, and dedicated time-frequency domain resources. The uplink reference signal is a random access signal dedicated to perception.

FIG. 3 is a flow chart of an embodiment of the method of the present application applied to a network device.

Step 301. Receive a random access request dedicated to sensing;

For example, the random access request includes an identifier dedicated to the sensing signal.

Step 302: Send the downlink information to configure an uplink reference signal.

The base station indicates the configured random access configuration to the terminal, in addition to indicating the configuration information of the logic number of the random access sequence and the cyclic shift step size Ncs of the terminal. Considering that the uplink sensing signal will be received by multiple serving cells, the configuration of the sensing random access transmission format should meet the large coverage positioning requirement.

Step 303, receiving an uplink reference signal to realize terminal positioning and sensing.

FIG. 4 is a flow chart of another embodiment of the method of the present application applied to a network device.

Step 401: Send downlink control signaling, which is used to indicate the location of the dedicated time-frequency domain resource where the paging message is located. For example, the downlink control signaling includes an identifier dedicated to the sensing signal.

Different from the existing process of sending and receiving paging message information, a new RNTI (P-pos-RNTI) for perceptual paging message is defined. When the downlink control signaling is scrambled by the RNTI, what is sent is the scheduling information of the perceptual paging, indicating the time-frequency resource position where the perceptual paging message is located.

Step 402: Send a paging message on the dedicated time-frequency resource where the paging message is located, as the downlink information, for configuring an uplink reference signal.

The sensing paging message includes sequence generation information for sensing, format of sensing sending, and dedicated time-frequency resource configuration for sensing sending. The base station determines information such as the sensing sending format indicated by the paging sensing message according to requirements such as terminal capability, terminal location, and sensing positioning services.

Step 403, receiving an uplink reference signal to realize terminal positioning and sensing.

FIG. 5 is a flow chart of an embodiment of a method of the present application applied to a terminal device.

The method in the first aspect of the present application is used for terminal equipment, and includes the following steps:

Step 501, the terminal device initiates a random access request dedicated to perception.

For example, the random access request includes an identifier dedicated to sensing signals. The terminal starts the random access process dedicated to sensing to obtain the configuration of the random access signal for sensing. Once the terminal has a sensing request, it starts the sensing random access process, requests the base station to obtain sensing uplink random access resources, and reports its location service requirements, terminal capabilities and expected configuration.

Step 502, the terminal device receives the downlink information.

The downlink information is the response to the random access request. The downlink information includes indication information, and the indication information is used to configure the uplink reference signal. If it is a 4-step random access process, the terminal receives the information of the uplink random access signal allocated by the base station for perception in the message 4 (msg4) of the 4th step; Receive the uplink random access signal information allocated by the base station for sensing in the message B (msgB) of the step. The configuration information includes a random access sequence dedicated to sensing and a time-frequency resource used for transmission.

Step 503: Determine the configuration of the uplink reference signal according to the indication information.

Step 504, the terminal device sends a random access signal according to the configuration.

FIG. 6 is a flow chart of another embodiment of the method of the present application applied to a terminal device.

The terminal in the idle state or inactive state receives the information of the random access signal for uplink sensing configured by the base station through the sensing-specific paging information

Step 601. The terminal device determines a paging opportunity according to the paging resource configuration dedicated to perception in the common paging search space.

For a terminal in the idle state/inactive state, the terminal uses the relevant paging parameters to calculate its own paging reception time in the positioning-specific public paging search space configured by the system, and the positioning-specific paging resource configuration specified by the system.

Step 602. The terminal device receives the downlink information, where the downlink information is a paging message received by the terminal device at the paging occasion.

The terminal periodically wakes up to receive the perceptual paging information at the paging opportunity in the paging cycle, and the perceptual paging information includes the configuration information of the uplink random access signal for perception,

Step 603, the terminal device determines the configuration of the uplink reference signal according to the indication information.

Step 604, the terminal device sends a random access signal according to the configuration.

The terminal sends the configured uplink random access signal for sensing according to the configuration information.

Fig. 7 is a schematic diagram of an embodiment of a network device.

The embodiment of the present application also proposes a network device, using the method in any one of the embodiments of the present application, the network device is configured to: receive a random access request, and the random access request includes an identifier dedicated to sensing signals; Sending the downlink information is used to configure an uplink reference signal. Alternatively, the network device is configured to: send downlink control signaling, where the downlink control signaling includes an identifier dedicated to sensing signals; the downlink control signaling is used to indicate the dedicated time-frequency domain resource where the paging message is located Location: sending a paging message on the dedicated time-frequency resource as the downlink information for configuring an uplink reference signal.

In order to implement the above technical solution, a network device 400 proposed in this application includes a network sending module 410 , a network determining module 420 , and a network receiving module 430 .

The network sending module is used to send the downlink information and downlink control information;

The network determination module is configured to determine the uplink random access format dedicated to the sensing signal, signal generation logic, and dedicated time-frequency domain resources, and generate the indication information.

The network receiving module is configured to receive the uplink reference signal to realize terminal positioning and perception.

The specific methods for implementing the functions of the network sending module, the network determining module, and the network receiving module are as described in the method embodiments of the present application, and will not be repeated here.

The network device described in this application may be a base station device.

Fig. 8 is a schematic diagram of an embodiment of a terminal device.

The present application also proposes a terminal device, using the method of any embodiment of the present application, the terminal device is used to: receive the downlink information; determine the configuration of the uplink reference signal according to the indication information; according to the The above configuration sends a random access signal.

Preferably, the terminal device initiates a random access request, and the random access request includes an identifier dedicated to sensing signals. Alternatively, the terminal device determines a paging occasion according to the paging resource configuration dedicated to perception in the public paging search space; the downlink information is a paging message received by the terminal device at the paging occasion.

In order to implement the above technical solution, a terminal device 500 proposed in this application includes a terminal sending module 510, a terminal determining module 520, and a terminal receiving module 530.

The terminal receiving module is configured to receive the downlink information, and the downlink information is a response to a random access request dedicated to perception or a paging message.

The terminal determining module is configured to determine, according to the indication information, a dedicated uplink random access format, signal generation logic, and dedicated time-frequency domain resources for sensing signals. In a specific embodiment, the terminal determination module is further configured to determine a paging opportunity according to the configuration of paging resource dedicated for perception in the public paging search space.

The terminal sending module is configured to send an uplink reference signal according to the indication information.

The specific methods for implementing the functions of the terminal sending module, the terminal determining module, and the terminal receiving module are as described in the method embodiments of the present application, and will not be repeated here.

The terminal equipment mentioned in this application may refer to mobile terminal equipment.

Fig. 9 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in the figure, the network device 600 includes a processor 610 , a wireless interface 620 , and a memory 630 . Wherein, the wireless interface may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium. The wireless interface realizes the communication function with the terminal equipment, processes wireless signals through the receiving and transmitting means, and the data carried by the signals communicates with the memory or the processor through the internal bus structure. The memory 630 contains a computer program for executing any one of the embodiments of the present application, and the computer program runs or changes on the processor 610 . When the memory, the processor, and the wireless interface circuit are connected through a bus system. The bus system includes a data bus, a power bus, a control bus and a status signal bus, which will not be repeated here.

Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 700 includes at least one processor 701 , a memory 702 , a user interface 703 and at least one network interface 704 . Various components in the terminal device 700 are coupled together through a bus system. A bus system is used to implement the connection communication between these components. The bus system includes data bus, power bus, control bus and status signal bus.

The user interface 703 may include a display, a keyboard, or a pointing device, such as a mouse, a trackball, a touch pad, or a touch screen.

Memory 702 stores executable modules or data structures. An operating system and application programs can be stored in the memory. Among them, the operating system includes various system programs, such as framework layer, core library layer, driver layer, etc., for realizing various basic services and processing tasks based on hardware. Application programs include various application programs, such as media players, browsers, etc., and are used to implement various application services.

In the embodiment of the present invention, the memory 702 includes a computer program for executing any embodiment of the present application, and the computer program is run or changed on the processor 701 .

The memory 702 includes a computer-readable storage medium, and the processor 701 reads the information in the memory 702 and completes the steps of the above method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 701, each step of the method embodiment as described in any one of the foregoing embodiments is implemented.

The processor 701 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the method of the present application may be completed by an integrated logic circuit of hardware in the processor 701 or instructions in the form of software. The processor 701 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, an off-the-shelf programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. In a typical configuration, a device of the present application includes one or more processors (CPUs), input/output user interfaces, network interfaces and memory.

Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Therefore, the present application also proposes a computer-readable medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any one embodiment of the present application are implemented. For example, the

memory

603, 702 of the present invention may include non-permanent memory in a computer-readable medium, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory ( flash RAM).

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Flash memory or other memory technology, Compact Disc Read-Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cartridge, tape magnetic disk storage or other magnetic storage device or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media excludes transitory computer-readable media, such as modulated data signals and carrier waves.

Based on the embodiments in Figures 7-10, this application also proposes a mobile communication system, including at least one embodiment of any terminal device in this application and/or at least one embodiment of any network device in this application.

It should also be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, commodity, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above descriptions are only examples of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

A communication sensing method in an inactive state of a terminal, comprising the following steps:

The downlink information includes indication information, and the indication information is used to configure the uplink reference signal;

The uplink reference signal is a random access signal dedicated to perception.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The indication information is used to indicate at least one of the following parameters:

The uplink random access format, the logical number of the random access sequence, the cyclic shift step of the random access sequence, and dedicated time-frequency domain resources.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The downlink information is a response to a random access request;

The random access request includes an identifier dedicated to sensing signals.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The downlink information is a paging message.
The terminal inactive state communication sensing method according to claim 4, characterized in that,

The downlink control signaling includes the scheduling information of the paging message, indicating the time-frequency domain resource location where the paging message is located;

The downlink control signaling includes an identifier dedicated to sensing signals.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The format of the uplink reference signal is PRACH Format 1, which is used for outdoor communication, or

The format of the uplink reference signal is PRACH Format 2, which is used for indoor communication, or

The format of the uplink reference signal is PRACH Format 3, which is used when the moving speed exceeds the set threshold.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The dedicated time-frequency resource of the uplink reference signal covers multiple serving cells.
The terminal inactive state communication sensing method according to claim 1, characterized in that,

The number of generated sequences of the uplink reference signal is a multiple of the number of ordinary random access signal sequences.
The terminal inactive state communication sensing method according to any one of claims 1 to 8, which is used for terminal equipment, is characterized in that it comprises the following steps:

receiving the downlink information;

Determine the configuration of the uplink reference signal according to the indication information;

The random access signal is sent according to the configuration.
The terminal inactive state communication sensing method according to claim 9, further comprising the following steps:

The terminal device initiates a random access request, and the random access request includes an identifier dedicated to sensing signals.
The terminal inactive state communication sensing method according to claim 9, further comprising the following steps:

The terminal device determines a paging opportunity according to the paging resource configuration dedicated to perception in the public paging search space;

The downlink information is a paging message received by the terminal device at the paging occasion.
The terminal inactive state communication sensing method according to any one of claims 1 to 8, which is used for network equipment, is characterized in that it comprises the following steps:

receiving a random access request, the random access request including an identification dedicated to the sensing signal;

Sending the downlink information is used to configure an uplink reference signal.
The terminal inactive state communication sensing method according to any one of claims 1 to 8, which is used for network equipment, is characterized in that it comprises the following steps:

sending downlink control signaling, where the downlink control signaling includes an identifier dedicated to sensing signals;

The downlink control signaling is used to indicate the location of the dedicated time-frequency domain resource where the paging message is located;

Sending a paging message on the dedicated time-frequency resource as the downlink information for configuring an uplink reference signal.
A terminal device, configured to implement the method according to any one of claims 1 to 8, characterized in that the terminal device is configured to: receive the downlink information; determine the uplink reference signal according to the indication information configuration; sending a random access signal according to the configuration.
A network device, configured to implement the method according to any one of claims 1-8, characterized in that the network device is configured to: receive a random access request, and the random access request includes a signal dedicated to sensing signals Identification; sending the downlink information to configure an uplink reference signal.
A network device, configured to implement the method according to any one of claims 1 to 8, characterized in that the network device is configured to: send downlink control signaling, and the downlink control signaling includes information dedicated to sensing signals An identifier; the downlink control signaling is used to indicate the location of the dedicated time-frequency domain resource where the paging message is located; sending a paging message on the dedicated time-frequency resource is used as the downlink information to configure an uplink reference signal.
A communication device, characterized by comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, when the computer program is executed by the processor, the claimed The step of any one of the methods described in 1-13.
A computer-readable medium, storing a computer program on the computer-readable medium, and implementing the steps of the method according to any one of claims 1-13 when the computer program is executed by a processor.
A mobile communication system, comprising at least one terminal device as claimed in claim 14 and/or at least one network device as claimed in claim 15 or 16.