Perception result acquisition method and device, equipment and storage medium

Abstract

The invention discloses a sensing result acquisition method and device, equipment and a storage medium, and relates to the technical field of communication. The method comprises: receiving a first channel, in which data subjected to spread spectrum processing by using a first sequence is mapped to the first channel (410); and obtaining a perception result according to the first channel (420). According to the invention, the data is mapped to the first channel for transmission after spread spectrum, and the code domain resource occupied by the first channel is increased through the spread spectrum sequence, which is equivalent to multiplexing a plurality of users on the same time-frequency domain resource, thereby avoiding occupying a large number of physical resources, satisfying the requirements of large bandwidth and long time of perception, and avoiding the waste of the time-frequency domain resource.

Description

Method, device, equipment and storage medium for obtaining perception results Technical Field

[0001] The embodiments of the present application relate to the field of communication technology, and in particular to a method, apparatus, device, and storage medium for obtaining perception results. Background Art

[0002] Wireless communication and sensing are two key applications of modern radio frequency technology. Sensing uses radio waves to detect parameters of the physical environment, enabling environmental perception such as target location, motion recognition, and imaging. Integrated communication and sensing technology combines wireless communication and sensing, utilizing the same signal to achieve both communication and sensing, thereby improving spectrum efficiency.

[0003] Perception accuracy is typically affected by signal bandwidth and duration. For example, a larger signal bandwidth improves ranging accuracy, while a longer signal duration improves speed accuracy. If, to meet perception requirements, the perception signal is scheduled to occupy more time-frequency domain resources for transmission, system transmission efficiency will decrease.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a method, apparatus, device, and storage medium for obtaining perception results. The technical solution is as follows:

[0006] According to one aspect of an embodiment of the present application, a method for acquiring a perception result is provided. The method is performed by a first device and includes:

[0007] receiving a first channel, wherein data subjected to spread spectrum processing using a first sequence is mapped to the first channel;

[0008] Acquire a sensing result according to the first channel.

[0009] According to one aspect of an embodiment of the present application, a method for acquiring a perception result is provided, the method being performed by a second device, the method including:

[0010] A first channel is sent, wherein data after spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a perception result.

[0011] According to one aspect of an embodiment of the present application, a device for obtaining a perception result is provided. The device is provided in a first device and includes:

[0012] a transceiver module, configured to receive a first channel, wherein data subjected to spread spectrum processing using a first sequence is mapped to the first channel;

[0013] A processing module is used to obtain a perception result according to the first channel.

[0014] According to one aspect of an embodiment of the present application, a device for obtaining a perception result is provided. In a second device provided with the device, the device includes:

[0015] The transceiver module is used to send a first channel, wherein data after spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a perception result.

[0016] According to one aspect of an embodiment of the present application, a communication device is provided, comprising a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program to implement the above-mentioned method for obtaining a perception result. In some embodiments, the communication device is a first device, or the communication device is a second device.

[0017] According to one aspect of an embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is used to be executed by a processor to implement the above-mentioned method for obtaining perception results.

[0018] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the above-mentioned method for obtaining perception results.

[0019] According to one aspect of an embodiment of the present application, a computer program product is provided, which includes a computer program stored in a computer-readable storage medium. A processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned method for obtaining perception results.

[0020] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0021] By spreading the data and mapping it to the first channel for transmission, and increasing the code domain resources occupied by the first channel through the spreading sequence, it is equivalent to multiplexing multiple users on the same time-frequency domain resources, avoiding occupying a large amount of physical resources while meeting the requirements of large bandwidth and long time perception, and avoiding the waste of time-frequency domain resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG1 is a schematic diagram of a network architecture provided by an embodiment of the present application;

[0023] FIG2 is a schematic diagram of a DMRS (Demodulation Reference Symbol) pattern of a PDSCH (Physical Downlink Shared Channel) DMRS configuration type 1 according to an embodiment of the present application;

[0024] FIG3 is a schematic diagram of a DMRS pattern of PDSCH DMRS configuration type 2 (PDSCH DMRS configuration type 2) provided in one embodiment of the present application;

[0025] FIG4 is a flowchart of a method for obtaining a perception result provided by an embodiment of the present application;

[0026] FIG5 is a block diagram of a device for acquiring perception results provided by one embodiment of the present application;

[0027] FIG6 is a block diagram of an apparatus for acquiring perception results provided by another embodiment of the present application;

[0028] FIG7 is a schematic structural diagram of a communication device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0030] Please refer to FIG1 , which shows a schematic diagram of a network architecture 100 provided by an embodiment of the present application. The network architecture 100 may include: a terminal device 10 , an access network device 20 , and a core network element 30 .

[0031] The terminal device 10 may refer to a UE (User Equipment), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a wireless communication device, a user agent, or a user apparatus. In some embodiments, the terminal device 10 may also be a cellular phone, a cordless phone, a SIP (Session Initiation Protocol) phone, a WLL (Wireless Local Loop) station, a PDA (Personal Digital Assistant), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5GS (5th Generation System) or a terminal device in a future evolved PLMN (Public Land Mobile Network), etc., and the embodiments of the present application are not limited thereto. For ease of description, the above-mentioned devices are collectively referred to as terminal devices. The number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20. The terminal device may also be referred to as a terminal or UE for short, and those skilled in the art will understand its meaning.

[0032] Access network equipment 20 is a device deployed in an access network to provide wireless communication capabilities for terminal devices 10. Access network equipment 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different wireless access technologies, the names of devices that provide access network equipment functions may vary. For example, in 5G NR systems, they are referred to as gNodeBs or gNBs. As communication technologies evolve, the term "access network equipment" may change. For ease of description, in the embodiments of this application, the aforementioned devices that provide wireless communication capabilities for terminal devices 10 are collectively referred to as access network equipment. In some embodiments, access network equipment 20 enables communication between terminal devices 10 and core network elements 30. For example, in an LTE (Long Term Evolution) system, access network equipment 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs within the EUTRAN. In a 5G NR system, access network equipment 20 may be a Radio Access Network (RAN) or one or more gNBs within the RAN. In the embodiment of the present application, unless otherwise specified, the "network device" refers to the access network device 20, such as a base station.

[0033] The core network element 30 is a network element deployed in the core network. The functions of the core network element 30 are mainly to provide user connection, user management, and service bearer, and to provide an interface to the external network as a bearer network. For example, the core network elements in the 5G NR system may include network elements such as the AMF (Access and Mobility Management Function) entity, the UPF (User Plane Function) entity, and the SMF (Session Management Function) entity.

[0034] In some embodiments, the access network device 20 and the core network element 30 communicate with each other via an air interface technology, such as the NG interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via an air interface technology, such as the Uu interface.

[0035] The "5G NR system" in the embodiments of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in the embodiments of the present application may be applicable to LTE systems, 5G NR systems, and subsequent evolution systems of 5G NR systems (e.g., B5G (Beyond 5G) systems, 6G systems (6th Generation System, sixth generation mobile communication systems)), and other communication systems such as NB-IoT (Narrow Band Internet of Things) systems, which are not limited in this application.

[0036] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) on the carrier used by the cell. The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0037] Before introducing the technical solutions of this application, we first introduce and explain some of the relevant technical knowledge involved in this application. The following related technologies can be combined with the technical solutions of the embodiments of this application as optional solutions, and they all fall within the scope of protection of the embodiments of this application. The embodiments of this application include at least part of the following contents.

[0038] 1. Synaesthesia Integration

[0039] Wireless communication and sensing are two key applications of modern RF technology. Sensing uses radio waves to detect parameters of the physical environment to enable environmental perception, such as target location, motion recognition, and imaging. Traditionally, sensing and wireless communication exist independently, and this separation wastes wireless spectrum and hardware resources. In the B5G and 6G eras, the communication spectrum is shifting towards millimeter-wave, terahertz, and visible light communications. In the future, the spectrum for wireless communication will overlap with the spectrum for traditional sensing. Integrated communication and sensing technology merges wireless communication and sensing, utilizing the same signal to perform both communication and sensing, thereby improving spectrum utilization. Furthermore, wireless communication and wireless sensing are increasingly sharing similarities in system design, signal processing, and data processing. Therefore, utilizing the same device for both communication and sensing can help reduce equipment costs.

[0040] Synaesthesia integration can be broadly categorized into two main categories: communication-assisted perception and perception-assisted communication. Communication-assisted perception refers to the transmission and aggregation of perception information through wireless communications, which can expand the breadth and depth of perception services and improve their timeliness. Fusion of communication and perception technologies can provide efficient perception services such as high-precision positioning, high-resolution imaging, and virtual environment reconstruction. This can effectively build digital twin environments, enabling digital representation and deep processing across numerous industries.

[0041] 2. NR PDSCH / PUSCH (Physical Uplink Shared Channel) DMRS

[0042] 2.1 Temporal Position

[0043] PDSCH mapping type A: The preamble DMRS is transmitted on the second or third symbol in the time slot.

[0044] PDSCH mapping type B: The pre-DMRS is transmitted on the first time domain symbol occupied by PDSCH.

[0045] PUSCH mapping type A: The position of the pre-DMRS is configured by higher-layer signaling.

[0046] PUSCH mapping type B: The pre-DMRS is transmitted on the first time domain symbol occupied by the PUSCH.

[0047] 2.2 Additional DMRS

[0048] In high-speed scenarios, the base station can configure more DMRS in the time domain to meet the required accuracy for estimating signal time variability. The number and location of additional DMRS are related to the number of symbols occupied by the PDSCH / PUSCH. Tables 1 and 2 show the time domain location of DMRS for a single symbol, where l0 is the leading DMRS.

[0049] Table 1: PDSCH DM-RS positions for single-symbol FM-RS

[0050] Table 2: PUSCH DM-RS position in the time slot Used to disable single-symbol DM-RS and intra-slot frequency hopping

[0051] 2.3 DMRS Pattern

[0052] DMRS is only transmitted in the physical resource blocks occupied by PDSCH / PUSCH.

[0053] PDSCH DMRS configuration type 1: As shown in Figure 2, using PDSCH mapping type A pre-DMRS as an example, the resource elements (REs) occupied by the DMRS for each antenna port are mapped in the frequency domain. Single-symbol transmission supports up to four antenna ports, while dual-symbol transmission supports up to eight antenna ports. The numbers in Figure 2 indicate the antenna port numbers.

[0054] PDSCH DMRS configuration type 2: As shown in Figure 3, using PDSCH mapping type A pre-DMRS as an example, in single-symbol mode, up to three resource groups (corresponding to different shading patterns) are supported. Frequency domain spreading is used on two adjacent REs in each group to support two antenna ports. In double-symbol mode, up to 12 antenna ports are supported.

[0055] PUSCH DMRS configuration type 1 has the same pattern as PDSCH DMRS configuration type 1. PUSCH DMRS configuration type 2 has the same pattern as PDSCH DMRS configuration type 2.

[0056] 2.4 DMRS Sequence

[0057] The DMRS sequence is calculated according to the formula Generate, where c(i) is a pseudo-random sequence, n = 1, 2, 3, ..., k, k is the length of the DMRS sequence, and j is an imaginary unit.

[0058] 3. NR PDSCH / PUSCH

[0059] The base station allocates time-frequency resources for PDSCH / PUSCH transmission to the terminal based on factors such as the transport block size carried by the PDSCH / PUSCH, channel conditions, and transmission reliability requirements. When channel conditions are poor and reliability requirements are high, the base station selects a lower MCS (Modulation and Coding Scheme) level (a lower MCS level means a lower coding rate), which in turn occupies more time-frequency resources. NR currently supports multiple MCS tables (Table 3 is one of them), as shown below.

[0060] Table 3: MCS index table

[0061] The direct relationship between TBS (Transport Block Size) and time-frequency domain resources is: the value of TBS is related to N info =N RE ·R·Q m ·v is related, where N RE =min(156,N′ RE )·n PRB , n PRB is the number of allocated PRBs (Physical Resource Blocks, physical resource blocks) (i.e. frequency domain resources), is the number of subcarriers, To allocate the number of time domain symbols for transmitting PDSCH / PUSCH, is the number of REs occupied by the demodulation reference signal, It is a parameter configured by high-level signaling, and its value is 6, 12 or 18 (if high-level signaling is not configured, it is set to 0), R is the indicated code rate, Q m is the modulation order indicated, and v is the number of transmission layers.

[0062] The code rate supported by the NR system is limited. From the above description, it can be seen that even when using the lowest code rate to transmit a small amount of data, the time and frequency resources occupied by PDSCH / PUSCH will not be large.

[0063] Perception accuracy is usually affected by signal bandwidth and signal duration. For example, the larger the signal bandwidth, the higher the accuracy of perception distance measurement, while the longer the signal duration, the higher the accuracy of perception speed measurement.

[0064] When using communication signals for perception, the resources allocated to communication signals need to consider two requirements at the same time: first, communication requirements, including data volume, transmission reliability, transmission latency, etc.; second, perception requirements. Different perception services have different requirements for signal transmission bandwidth and duration.

[0065] If, in order to meet perception needs, the base station schedules PDSCH / PUSCH to occupy more time-frequency resources (i.e., large bandwidth or multiple symbols) for transmission, the following problems will arise: when the amount of data to be transmitted is small, the transmitter fills in redundant information (dummy bits) to generate a larger TB (Transport Block) for transmission, resulting in reduced system transmission efficiency, wasted power consumption, and increased transmission delay.

[0066] "Perception," as used in the embodiments of this application, refers to the process of directly or indirectly obtaining perceptual information about a target or environment based on at least one perceptual signal, such as sound waves, electromagnetic waves, or light waves (including but not limited to lasers). For example, perceptual information about a target or environment may be obtained by sending and receiving perceptual signals and measuring or otherwise processing the perceptual signals, thereby enabling services such as positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking, and target recognition.

[0067] In addition, the word "perception" mentioned in the embodiments of the present application can also be replaced by any other word that can express perception-related meanings, such as positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition.

[0068] Please refer to Figure 4, which shows a flow chart of a method for obtaining a perception result provided by an embodiment of the present application. The method may include at least one of the following steps 410 to 420.

[0069] Step 410: A first device receives a first channel, wherein data subjected to spread spectrum processing using a first sequence is mapped to the first channel.

[0070] Before step 410, the second device transmits the first channel.

[0071] In some embodiments, the first device is a perception receiving device, used to receive a first channel, and the first channel is used to obtain a perception result; the second device is a perception sending device, used to send the first channel.

[0072] In some embodiments, the first device is a first terminal device or a first access network device.

[0073] In some embodiments, the second device is a second terminal device or a second access network device.

[0074] In some embodiments, the first channel includes at least one of the following: PDSCH, PDCCH (Physical Downlink Control Channel), PUSCH, PUCCH (Physical Uplink Control Channel).

[0075] Exemplarily, the first device is a first terminal device, the second device is a second access network device, and the first channel is a downlink channel. For example, the first channel may be a PDCCH or a PDSCH.

[0076] Exemplarily, the first device is a first access network device, and the second device is a second terminal device, and the first channel is an uplink channel. For example, the first channel can be a PUCCH or a PUSCH.

[0077] Exemplarily, the first device is a first terminal device, and the second device is a second terminal device, and the first channel is a sidelink channel. For example, the first channel can be a PSCCH (Physical Sidelink Control Channel) or a PSSCH (Physical Sidelink Shared Channel).

[0078] In some embodiments, mapping data after spread spectrum processing using a first sequence to a first channel means spreading the data using the first sequence and mapping the data after spread spectrum processing to different code domain resources that are the same as the time-frequency domain resources of the first channel.

[0079] In some embodiments, data after spread spectrum processing using a first sequence is mapped to a first channel, which is equivalent to multiplexing multiple users on the time-frequency domain resources occupied by the first channel. The DMRS of the first channel sent by the multiple users can be presented as a comb structure to achieve the purpose of increasing the bandwidth or time occupied by the DMRS. The method for determining the position of the DMRS can be combined with the above Tables 1 and 2.

[0080] In some embodiments, using the first sequence to perform spread spectrum processing refers to multiplying the first sequence with data.

[0081] In some embodiments, the data in the first channel refers to data or information carried in the first channel except for the DMRS.

[0082] Exemplarily, if the first channel is a shared channel, the data in the first channel is the data carried by the first channel excluding the DMRS. Shared channels include PDSCH, PUSCH, and PSSCH. Taking the shared channel as PDSCH as an example, the data in the first channel is the downlink data carried by the PDSCH. Taking the shared channel as PUSCH as an example, the data in the first channel is the uplink data carried by the PUSCH. Taking the shared channel as PSSCH as an example, the data in the first channel is the sidelink data carried by the PSSCH.

[0083] Exemplarily, if the first channel is a control channel, the data in the first channel is the control information carried in the first channel except for DMRS. The control channel includes PDCCH, PUCCH, and PSCCH. Taking the control channel as PDCCH as an example, the control information in the first channel is the downlink control information carried by PDCCH, such as DCI (Downlink Control Information). Taking the control channel as PUCCH as an example, the control information in the first channel is the uplink control information carried by PUCCH, such as UCI (Uplink Control Information). Taking the control channel as PSCCH as an example, the control information in the first channel is the sidelink control information carried by PSCCH, such as SCI (Sidelink Control Information).

[0084] In some embodiments, the first sequence is determined according to first configuration information.

[0085] In some embodiments, the first device receives first configuration information from the second device, or the first device receives first configuration information from the third device. The first configuration information is used to indicate spread spectrum information of the first channel.

[0086] In some embodiments, the first configuration information includes at least one of the following: spreading sequence information, sensing trigger information, and spreading mode information.

[0087] The spreading sequence information is used to indicate the spreading sequence used to spread the data. In some embodiments, the spreading sequence information includes at least one of the following: an identifier or number of a sequence category; an identifier or number of a sequence group; an identifier or number of a first sequence; or a spreading factor.

[0088] The spread spectrum sequence used for spectrum spreading can be predefined or preconfigured. Exemplarily, the spread spectrum sequence used for spectrum spreading is preconfigured by a third device. The third device is a perception control device, which is used to obtain perception results and obtain information about the perceived object based on the perception results. In some embodiments, the third device includes at least one of the following: a third terminal device, a third access network device, a core network network element, a perception control network element, and a server. Exemplarily, if the first device is a first access network device, the spread spectrum sequence used for spectrum spreading is preconfigured by the first device. Exemplarily, if the second device is a second access network device, the spread spectrum sequence used for spectrum spreading is preconfigured by the second device.

[0089] Due to different sequence generation methods, sequences can also be divided into different sequence categories. For example, sequences can be divided into orthogonal sequences and quasi-orthogonal sequences. Orthogonal sequences can be further divided into wash codes and DFT (Density Functional Theory) codes, and quasi-orthogonal sequences can be further divided into m-sequences and ZC (Zadoff Chu) sequences. The sequence category identifier is used to uniquely identify the sequence category. The sequence category identifier can be implemented as a sequence category number, such as a sequence category index, or it can be implemented in other forms, such as a sequence category identifier symbol, which is not limited in this application.

[0090] In a sequence category, different spreading coefficients result in different spreading sequences. Therefore, sequences obtained with a spreading coefficient can be classified into a sequence group. The sequence group identifier is used to distinguish between sequence groups in the sequence category to which the sequence group belongs.

[0091] A sequence group may include multiple spreading sequences. Therefore, to identify the first sequence in a sequence group, the first sequence identifier or number is required. The sequence identifier is used to distinguish the various sequences in the sequence group to which the sequence belongs.

[0092] The perception trigger information is used to indicate whether perception measurement is triggered. In some embodiments, the perception result is obtained when the perception measurement is triggered. Whether the perception measurement is triggered can be indicated explicitly by the perception trigger information or implicitly by other information, which is not limited in this application.

[0093] In some embodiments, whether the sensing measurement is triggered is indicated by sensing trigger information. For example, whether the sensing measurement is triggered can be indicated by a specific bit. For example, the specific bit has a first value indicating that the sensing measurement is triggered; the specific bit has a second value indicating that the sensing measurement is not triggered.

[0094] In some embodiments, the above-mentioned specific bit can be one bit or multiple bits, which is not limited in this application. For example, if the above-mentioned specific bit is one bit, then the above-mentioned first value and second value can be 0 and 1. Exemplarily, if the first value is 0 and the second value is 1, then the specific bit is 0, indicating that the perception measurement is triggered; and the specific bit is 1, indicating that the perception measurement is not triggered. For another example, if the above-mentioned specific bit is two bits, then the above-mentioned first value can be any one of 00, 01, 10, and 11, and the second value is any one of the values ​​of 00, 01, 10, and 11 except the first value. For example, if the first value is 00, then the second value can be any one of 01, 10, and 11. Taking the first value as 00 and the second value as 11 as an example, the specific bit is 00, indicating that the perception measurement is triggered; and the specific bit is 11, indicating that the perception measurement is not triggered.

[0095] In some embodiments, if the specific bit consists of multiple bits, only the first or second value may be determined. Exemplarily, if only the first value is determined, then if the specific bit is the first value, it indicates that sensing measurement is triggered; if the specific bit is not the first value, it indicates that sensing measurement is not triggered. Exemplarily, if the specific bit consists of two bits and the first value is 00, then if the specific bit is 00, it indicates that sensing measurement is triggered; if the specific bit is not 00, it indicates that sensing measurement is not triggered. For example, if the specific bits are 01, 10, or 11, it indicates that sensing measurement is not triggered. Exemplarily, if only the second value is determined, then if the specific bit is the second value, it indicates that sensing measurement is not triggered; if the specific bit is not the second value, it indicates that sensing measurement is triggered. Exemplarily, if the specific bit consists of two bits and the second value is 11, then if the specific bit is 11, it indicates that sensing measurement is not triggered; if the specific bit is not 11, it indicates that sensing measurement is triggered. For example, if the specific bits are 00, 01, or 10, it indicates that sensing measurement is triggered.

[0096] The spreading mode information is used to indicate the spreading mode used to spread the data. In some embodiments, the spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

[0097] In some embodiments, the spreading factor is related to the spreading mode.

[0098] In some embodiments, if the spreading method is time-domain spreading, the spreading factor is related to the number of symbols occupied by the first channel and is divisible by the number of symbols occupied by the first channel. A slot has 14 symbols. In some cases, the control channel occupies 2 symbols. In this case, if the first channel is a shared channel, the first channel can only occupy 12 symbols. Therefore, when time-domain spreading is used, the spreading factor must be divisible by 12 or 14. Exemplarily, when time-domain spreading is used, the spreading factor is 2, 3, 4, 6, or 7.

[0099] In some embodiments, if the spreading method is frequency domain spreading, the spreading factor is related to the number of subcarriers. The number of subcarriers refers to the number of subcarriers in an RB. There are 12 subcarriers in an RB, and the spreading factor is divisible by the number of subcarriers (12). Exemplarily, when frequency domain spreading is used, the spreading factor is 2, 3, 4, or 6.

[0100] Joint time-frequency domain spreading refers to spreading in both the time domain and the frequency domain. In some embodiments, joint time-frequency domain spreading can be performed first in the time domain and then in the frequency domain, or first in the frequency domain and then in the time domain, which is not limited in this application.

[0101] In some embodiments, the first sequence is determined based on specific information of the first device.

[0102] The exclusive information of the first device is used to uniquely identify the first device, for example, the exclusive information of the first device is used to distinguish the first device from other devices. Exemplarily, if the first device is a first terminal device, the exclusive information of the first device may be UE_ID. Exemplarily, the exclusive information of the first device may also be initialization information of a DMRS sequence of the first device (such as DMRS sequence initialization).

[0103] In some embodiments, the first sequence is determined according to the first configuration information and specific information of the first device.

[0104] Exemplarily, the first sequence is determined based on the first spreading factor indicated in the first configuration information and the first device's specific information. Exemplarily, the first sequence is determined based on the identifier or number of the sequence category indicated in the first configuration information and the first device's specific information. Exemplarily, the first sequence is determined based on the identifier or number of the sequence category group indicated in the first configuration information and the first device's specific information.

[0105] Step 420: The first device obtains a sensing result according to the first channel.

[0106] The perception results are used to identify the perceived object or measurement environment, such as realizing positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking, target recognition and other services.

[0107] In some embodiments, the sensing result is determined based on the DMRS in the first channel.

[0108] In some embodiments, the sensing result is determined based on the DMRS and the data portion in the first channel.

[0109] Generally, DMRS is used for sensing, so the first device can determine the sensing result based on the DMRS in the first channel. In some cases, to improve sensing accuracy, the data in the first channel can also have sensing capabilities, so the first device can determine the sensing result based on the DMRS and data portion in the first channel.

[0110] In some embodiments, step 420 is followed by step 430 (not shown in FIG. 4 ).

[0111] Step 430: The first device sends the perception result to the third device.

[0112] The third device is a perception control device.

[0113] In some embodiments, the first device is both a sensing receiving device and a sensing controlling device, and the above step 430 does not need to be performed.

[0114] In some embodiments, the second device is both a perception sending device and a perception control device, and the above step 430 is the first device sending the perception result to the second device.

[0115] In some embodiments, the third device is another device different from the first device and the second device, and the above step 430 is that the first device sends the perception result to the third device.

[0116] In some embodiments, if the first device is both a sensing receiving device and a sensing controlling device, the method further includes step 440 (not shown in FIG. 4 ), in which the first device sends first configuration information to the second device. Accordingly, the second device receives the first configuration information, determines a first sequence based on the first configuration information, and uses the first sequence to spread spectrum the data in the first channel.

[0117] The technical solution provided in the embodiment of the present application, by spreading the data and mapping it to the first channel for transmission, increases the code domain resources occupied by the first channel through the spreading sequence, which is equivalent to multiplexing multiple users on the same time-frequency domain resources, avoiding occupying a large amount of physical resources while meeting the requirements of large bandwidth and long time of perception, and avoiding waste of time-frequency domain resources.

[0118] This application provides exemplary embodiments for determining the first sequence.

[0119] 1. Determining the first sequence based on the first configuration information

[0120] Tables 4 to 6 below provide three orthogonal sequence groups, and the following three sequence groups are used as examples for illustrative description.

[0121] Table 4: Spreading Factor Orthogonal sequence

[0122] Table 5: Spreading Factor Orthogonal sequence

[0123] Table 6: Spreading Factor Orthogonal sequence

[0124] As shown in Tables 4 and 5, they are two sequence groups with the same sequence type but different spreading coefficients. As shown in Tables 5 and 6, they are two sequence groups with different sequence types but the same spreading coefficients.

[0125] In an example, among the spreading sequences used for spectrum spreading, there are no two sequence groups with the same spreading coefficient. In this case, the first configuration information does not need to indicate an identifier or number of the sequence category.

[0126] Illustratively, if the spreading sequence used for spectrum spreading includes only one sequence category, for example, only the sequence categories consisting of the sequence groups described in Table 4 and Table 5 above, then there is no need to indicate an identifier or number for the sequence category.

[0127] Illustratively, in the spreading sequence used for spreading, one spreading coefficient corresponds to only one sequence group, for example, only including Table 4 and Table 6 above, and there is no need to indicate an identifier or number of the sequence category.

[0128] In another example, if no two sequence groups have the same spreading factor among the spreading sequences used for spectrum spreading, the spreading factor can be used instead of the sequence group identifier or number. One possible scenario is to use the spreading factor as the sequence group identifier. Another possible scenario is that the first configuration information does not indicate the sequence group identifier or number, but instead indicates the spreading factor.

[0129] Exemplarily, the spreading sequence used for spectrum spreading includes only one sequence category, for example, only the sequence categories consisting of the sequence groups described in Table 4 and Table 5 above, and the corresponding sequence group can be determined according to the spreading coefficient.

[0130] Illustratively, in the spreading sequence used for spectrum spreading, one spreading coefficient corresponds to only one sequence group, for example, only including Table 4 and Table 6 above, then the corresponding sequence group can be determined according to the spreading coefficient.

[0131] In another example, the spreading sequence used for spectrum spreading includes only one sequence group, for example, only one sequence group in Tables 4 to 6 above. In this case, the first configuration information only needs to indicate the identifier or number of the first sequence to determine the first sequence.

[0132] Exemplarily, the spreading sequence used for spreading includes only the sequence group shown in Table 4. If the first configuration information indicates that the identifier of the first sequence is 0, the first sequence can be determined as [+1 +1]; if the first configuration information indicates that the identifier of the first sequence is 1, the first sequence can be determined as [+1 -1].

[0133] Exemplarily, the spreading sequence used for spreading includes only the sequence group shown in Table 5. If the first configuration information indicates that the identifier of the first sequence is 0, the first sequence can be determined as [+1 +1 +1 +1]; if the first configuration information indicates that the identifier of the first sequence is 1, the first sequence can be determined as [+1 -j -1 +j]; if the first configuration information indicates that the identifier of the first sequence is 2, the first sequence can be determined as [+1 -1 +1 -1]; if the first configuration information indicates that the identifier of the first sequence is 3, the first sequence can be determined as [+1 +j -1 -j].

[0134] Exemplarily, the spreading sequence used for spreading includes only the sequence group shown in Table 6. If the first configuration information indicates that the identifier of the first sequence is 0, the first sequence can be determined as [+1 +1 +1 +1]; if the first configuration information indicates that the identifier of the first sequence is 1, the first sequence can be determined as [+1 -1 +1 -1]; if the first configuration information indicates that the identifier of the first sequence is 2, the first sequence can be determined as [+1 +1 -1 -1]; if the first configuration information indicates that the identifier of the first sequence is 3, the first sequence can be determined as [+1 -1 -1 +1].

[0135] In another example, the spreading sequence used for spreading includes multiple sequence categories, and there are sequence groups with the same spreading coefficient but different sequence categories. In this case, the first configuration information needs to indicate the identifier or number of the sequence category, the identifier or number of the sequence group, and the identifier or number of the first sequence.

[0136] In another example, different sequence groups have different sequence identifiers or numbers, for example, Tables 4 to 6 each have their own identifiers or numbers, and the first configuration information does not need to indicate the identifier or number of the sequence category.

[0137] 2. Determining the First Sequence Based on the Exclusive Information of the First Device

[0138] Exemplarily, the first sequence is predefined or preconfigured to be determined based on the exclusive information of the first device, and the correspondence between the exclusive information of the first device and the first sequence is predefined or preconfigured, so that the first device can determine the first sequence based on the exclusive information of the first device.

[0139] For example, the correspondence between different UE_IDs and different sequences is pre-configured, and the first sequence can be determined according to the UE_ID of the first device.

[0140] For example, the correspondence between different DMRS sequence initializations and different sequences is pre-configured, and the first sequence may be determined according to the DMRS sequence initialization of the first device.

[0141] 3. Determining the First Sequence Based on the First Configuration Information and the Exclusive Information of the First Device

[0142] 1. The first sequence is determined based on the exclusive information of the first device and the first spreading coefficient, wherein the first spreading coefficient is determined based on the first configuration information

[0143] In some embodiments, the correspondence between the specific information of the first device, the first spreading coefficient, and the first sequence may be predefined or preconfigured.

[0144] Exemplarily, the first sequence identifier or number is obtained by performing a first operation on the predefined or preconfigured exclusive information of the first device and the first spreading factor. For example, the first sequence identifier or number is obtained by performing the following operation: UE_ID mod N SF Or DMRS sequence initialization mod N SF . Wherein, mod refers to the modular operation.

[0145] In some embodiments, a correspondence between the specific information of the first device and the identifier or number of the first sequence may be predefined or preconfigured, and the sequence group to which the first sequence belongs may be determined according to the first spreading coefficient, thereby determining the first sequence.

[0146] 2. The first sequence is determined in the first sequence group based on the exclusive information of the first device, wherein the first sequence group is determined based on the first configuration information

[0147] In some embodiments, the first configuration information may indicate an identifier or number of the first sequence group to identify the first sequence group.

[0148] In some embodiments, a correspondence between the specific information of the first device and the identifier or number of the first sequence may be predefined or preconfigured, thereby determining the first sequence in the first sequence group.

[0149] 3. The first sequence is determined within the first type of sequence based on the exclusive information of the first device, wherein the first type of sequence is determined based on the first configuration information

[0150] In some embodiments, the first configuration information may indicate an identifier or number of the first type of sequence to identify the first type of sequence.

[0151] In some embodiments, the correspondence between the specific information of the first device, the identifier or number of the first sequence, and the first spreading factor may be predefined or preconfigured, thereby determining the first sequence in the first type of sequence.

[0152] The above method for determining the first sequence needs to be specifically analyzed based on the spread spectrum sequence used for spread spectrum. Only several possible situations are discussed above, and the above situations can also be combined. The method obtained after the combination should also fall within the scope of protection of the embodiments of the present application and will not be listed one by one here.

[0153] The present application also provides an embodiment of a method for determining the TBS carried by the first channel.

[0154] In some embodiments, the first device determines the TBS carried by the first channel according to a first parameter, where the first parameter is related to a spreading factor used to spread data.

[0155] Exemplarily, the following process may be used to determine the first parameter: N info =N RE ·R·Q m ·υ / N SF

[0156] Among them, N SF is the spreading factor, or N SF =N SF_f ·N SF_t , N SF_f is the frequency domain spreading factor, N SF_t is the time domain spreading factor, N info is the first parameter, R is the code rate (coding rate), Q m is the modulation order indicated, and v is the number of transmission layers.

[0157] Exemplarily, the following process may be used to determine the first parameter: N RE =min(156,N′ RE )·n PRB / N SF

[0158] Among them, N SF is the spreading factor, or N SF =N SF_f ·N SF_t , N SF_f is the frequency domain spreading factor, N SF_t is the time domain spreading factor, n PRB is the number of allocated physical resource blocks (PRBs) (i.e., frequency domain resources), N RE is the first parameter.

[0159] in, is the number of subcarriers, N SF is the spreading factor, or the frequency domain spreading factor; N is the number of time domain symbols allocated for PDSCH transmission. SF is the spreading factor, or the time domain spreading factor; is the number of REs occupied by the demodulation reference signal, N is a parameter configured for high-level signaling, and its value is 6, 12 or 18 (if high-level signaling is not configured, it is set to 0). RE is the first parameter.

[0160] The above method for calculating the TBS carried by the first channel is designed based on the spread spectrum method proposed in the embodiment of the present application, and can be adapted to the spread spectrum method given in the embodiment of the present application to accurately calculate the TBS carried by the first channel.

[0161] Regarding the above method, whether to trigger the perception measurement can be implicitly indicated by other information, and this application also provides an exemplary embodiment.

[0162] In some embodiments, the first configuration information includes at least one of the following: spreading sequence information; sensing trigger information; spreading mode information.

[0163] If whether to trigger the perception measurement can be implicitly indicated by other information, then the first configuration information includes at least one of the following: perception triggering information and spread spectrum mode information.

[0164] In some embodiments, when the spreading sequence information and / or the spreading mode information is a first agreed value, the sensing measurement is triggered.

[0165] In some embodiments, when the spreading sequence information and / or the spreading mode information is a second agreed value, the sensing measurement is not triggered.

[0166] First, it should be clarified that the first agreed value (second agreed value) does not refer to a specific agreed value. It can also be a class of agreed values, including multiple agreed values, or a class of agreed identifiers. Here, it is only referred to as an agreed value, and it does not exclude that it can also have other names. The above content will be explained below with examples.

[0167] 1. When the spread spectrum sequence information is the first agreed value, the sensing measurement is triggered

[0168] The spreading sequence information includes at least one of the following: an identifier or number of a sequence category; an identifier or number of a sequence group; an identifier or number of a first sequence; and a spreading factor.

[0169] Exemplarily, the first agreed value may be an identifier or number of a sequence category included in a spreading sequence used for spectrum spreading. If the spreading sequence information indicates an identifier or number of any sequence category, a sensing measurement is triggered. For example, if the spreading sequence used for spectrum spreading includes sequence category 1 and sequence category 2, the first agreed value may be sequence category 1 or sequence category 2. If the spreading sequence information indicates either sequence category 1 or sequence category 2, a sensing measurement is triggered.

[0170] Exemplarily, the first agreed value may be an identifier or number of a sequence group included in the spreading sequence used for spectrum spreading. If the spreading sequence information indicates the identifier or number of any sequence group, a sensing measurement is triggered. For example, if the spreading sequence used for spectrum spreading includes sequence group 1 and sequence group 2, the first agreed value may be sequence group 1 or sequence group 2. If the spreading sequence information indicates either sequence group 1 or sequence group 2, a sensing measurement is triggered.

[0171] Exemplarily, the first agreed value may be an identifier or number of a sequence included in a spreading sequence used for spectrum spreading. If the spreading sequence information indicates the identifier or number of any sequence, a sensing measurement is triggered. For example, if the spreading sequence used for spectrum spreading includes sequence 1 and sequence 2, the first agreed value may be sequence 1 or sequence 2. If the spreading sequence information indicates either sequence 1 or sequence 2, a sensing measurement is triggered.

[0172] Exemplarily, the first agreed value may be a possible value of a spreading factor, and if the spreading factor is any of the possible values, a sensing measurement is triggered. For example, the possible values ​​of the spreading factor are 2, 3, 4, and 6, and if the spreading factor is 2, a sensing measurement is triggered.

[0173] In some embodiments, when the spreading sequence information is not the first agreed value, the sensing measurement is not triggered.

[0174] 2. When the spread spectrum mode information is the first agreed value, trigger the perception measurement

[0175] In some embodiments, the spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

[0176] In some embodiments, the first agreed value may be time domain spreading, frequency domain spreading, or joint time-frequency domain spreading. If the spreading mode information indicates any one of time domain spreading, frequency domain spreading, or joint time-frequency domain spreading, sensing measurement is triggered. For example, if the spreading mode information indicates time domain spreading, sensing measurement is triggered.

[0177] In some embodiments, when the spreading mode information is not the first agreed value, the sensing measurement is not triggered.

[0178] 3. When the spread spectrum sequence information is the second agreed value, the sensing measurement is not triggered

[0179] Exemplarily, the first agreed value may be an identifier or number of a sequence category not included in the spreading sequence used for spectrum spreading. For example, if the spreading sequence used for spectrum spreading includes sequence category 1 and sequence category 2, then the second agreed value may be an identifier or number of any sequence category other than sequence category 1 and sequence category 2. For example, if sequence category 3 is indicated in the spreading sequence information, sensing measurement is not triggered.

[0180] Illustratively, the first agreed value may be an identifier or number of a sequence group not included in the spreading sequence used for spectrum spreading. For example, if the spreading sequence used for spectrum spreading includes sequence group 1 and sequence group 2, the second agreed value may be an identifier or number of any sequence group other than sequence group 1 or sequence group 2. For example, if the spreading sequence information indicates sequence group 3, sensing measurement is not triggered.

[0181] Illustratively, the second agreed value may be an identifier or number of a sequence not included in the spreading sequence used for spectrum spreading. For example, if the spreading sequence used for spectrum spreading includes sequence 1 and sequence 2, the second agreed value may be an identifier or number of any sequence other than sequence 1 or sequence 2. If sequence 0 is indicated in the spreading sequence information, sensing measurement is not triggered.

[0182] In some embodiments, when the spreading sequence information is not a second agreed value, sensing measurement is triggered.

[0183] 4. When the spread spectrum mode information is the second agreed value, the perception measurement is not triggered

[0184] In some embodiments, the spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

[0185] In some embodiments, the second agreed value can be any content other than time domain spreading, frequency domain spreading, or combined time-frequency domain spreading. This content can be a numerical value, an identifier, or an empty packet, which is not limited in this application. For example, if the spreading mode information indication is empty, the sensing measurement is not triggered.

[0186] In some embodiments, when the spreading mode information is not a second agreed value, sensing measurement is triggered.

[0187] The above methods can be combined arbitrarily to obtain new methods, and this application will not describe them one by one here.

[0188] Through the above method, whether to trigger the perception measurement can be flexibly indicated without setting additional perception measurement information, which can reduce the amount of data that needs to be transmitted for the first configuration information.

[0189] In some embodiments, the DMRS in the first channel may also be spread. The DMRS may be spread using the first sequence or not, which is not limited in this application.

[0190] 1. The DMRS in the first channel is spread using the first sequence

[0191] The DMRS in the first channel is spread using the first sequence. In this case, the DMRS in the first channel is mapped to the first channel after spreading. The DMRS in the first channel can be mapped to the first channel in a comb-like manner to achieve the purpose of expanding the frequency domain resources or time domain resources occupied by the DMRS.

[0192] 2. The DMRS in the first channel is spread using the second sequence

[0193] In some embodiments, the spreading coefficient corresponding to the second sequence is less than or equal to the spreading coefficient corresponding to the first sequence.

[0194] In some embodiments, the spreading coefficient corresponding to the second sequence is equal to the spreading coefficient corresponding to the first sequence, but the second sequence is different from the first sequence.

[0195] In some embodiments, the spreading coefficient corresponding to the second sequence may also be greater than the spreading coefficient corresponding to the first sequence, which is not limited in this application.

[0196] In some embodiments, the second sequence used for DMRS spreading can also be determined using the same method as the first sequence. Related information of the second sequence can also be indicated by the first configuration information, which will not be described in detail in this application.

[0197] By using the above method, DMRS is spread spectrum so that DMRS can occupy larger time domain resources and / or frequency domain resources, thereby meeting the requirements of large bandwidth and long time for perception and improving perception accuracy.

[0198] The following are device embodiments of the present application, which can be used to implement the method embodiments of the present application. For details not disclosed in the device embodiments of the present application, please refer to the method embodiments of the present application.

[0199] Please refer to Figure 5, which shows a block diagram of a device for acquiring perception results provided by one embodiment of the present application. This device has the function of implementing the above-mentioned method for acquiring perception results. This function can be implemented by hardware or by hardware executing corresponding software. This device can be the first device described above, or it can be provided in the first device. As shown in Figure 5, the device 500 may include: a transceiver module 510 and a processing module 520.

[0200] The transceiver module 510 is configured to receive a first channel, wherein data subjected to spread spectrum processing using a first sequence is mapped to the first channel.

[0201] The processing module 520 is configured to obtain a sensing result according to the first channel.

[0202] In some embodiments, the first sequence is determined according to first configuration information; or,

[0203] The first sequence is determined according to specific information of the first device; or,

[0204] The first sequence is determined according to first configuration information and specific information of the first device.

[0205] In some embodiments, the first configuration information includes at least one of the following:

[0206] Spreading sequence information;

[0207] Perceive trigger information;

[0208] Spread spectrum mode information.

[0209] In some embodiments, the spreading sequence information includes at least one of the following:

[0210] The identifier or number of the serial class;

[0211] The identifier or number of the sequence group;

[0212] the identifier or number of the first sequence;

[0213] Spreading factor.

[0214] In some embodiments, the spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

[0215] In some embodiments, when the spreading sequence information and / or the spreading mode information is a first agreed value, a sensing measurement is triggered; or,

[0216] When the spreading sequence information and / or the spreading mode information is a second agreed value, sensing measurement is not triggered.

[0217] In some embodiments, the first sequence is determined based on first configuration information and specific information of the first device, including:

[0218] The first sequence is determined according to the specific information of the first device and a first spreading coefficient, wherein the first spreading coefficient is determined according to the first configuration information; or

[0219] The first sequence is determined in a first sequence group according to specific information of the first device, wherein the first sequence group is determined according to the first configuration information; or

[0220] The first sequence is determined within a first type of sequence according to specific information of the first device, wherein the first type of sequence is determined according to the first configuration information.

[0221] In some embodiments, when time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7;

[0222] When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

[0223] In some embodiments, the DMRS in the first channel is spread using the first sequence;

[0224] or,

[0225] The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

[0226] In some embodiments, the processing module 520 is further configured to determine the TBS carried by the first channel according to a first parameter, where the first parameter is related to a spreading factor used to spread the data.

[0227] In some embodiments, the sensing result is determined according to a DMRS in the first channel; or,

[0228] The sensing result is determined according to the DMRS and data part in the first channel.

[0229] In some embodiments, the first channel includes at least one of the following: PDSCH, PDCCH, PUSCH, PUCCH.

[0230] In some embodiments, the first device is a first terminal device or a first access network device.

[0231] In some embodiments, the transceiver module 510 is further used to send the perception result to a third device, and the third device includes at least one of the following: a third terminal device, a third access network device, a core network network element, a perception control network element, and a server.

[0232] The technical solution provided in the embodiment of the present application, by spreading the data and mapping it to the first channel for transmission, increases the code domain resources occupied by the first channel through the spreading sequence, which is equivalent to multiplexing multiple users on the same time-frequency domain resources, avoiding occupying a large amount of physical resources while meeting the requirements of large bandwidth and long time of perception, and avoiding waste of time-frequency domain resources.

[0233] Please refer to Figure 6, which shows a block diagram of a device for acquiring perception results provided by another embodiment of the present application. This device has the function of implementing the above-mentioned method for acquiring perception results. The function can be implemented by hardware or by hardware executing corresponding software. This device can be the second device described above, or it can be provided in the second device. As shown in Figure 6, the device 600 can include: a transceiver module 610.

[0234] The transceiver module 610 is configured to send a first channel, wherein data after spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a sensing result.

[0235] In some embodiments, the transceiver module 610 is further configured to receive or send first configuration information, where the first configuration information is used to determine the first sequence.

[0236] In some embodiments, the first configuration information includes at least one of the following:

[0237] Spreading sequence information;

[0238] Perceive trigger information;

[0239] Spread spectrum mode information.

[0240] In some embodiments, the spreading sequence information includes at least one of the following:

[0241] The identifier or number of the serial class;

[0242] The identifier or number of the sequence group;

[0243] the identifier or number of the first sequence;

[0244] Spreading factor.

[0245] In some embodiments, the spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

[0246] In some embodiments, when time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7;

[0247] When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

[0248] In some embodiments, the DMRS in the first channel is spread using the first sequence;

[0249] or,

[0250] The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

[0251] In some embodiments, the sensing result is determined according to a DMRS in the first channel; or,

[0252] The sensing result is determined according to the DMRS and data part in the first channel.

[0253] In some embodiments, the first channel includes at least one of the following: PDSCH, PDCCH, PUSCH, PUCCH.

[0254] In some embodiments, the second device is a second terminal device or a second access network device.

[0255] The technical solution provided in the embodiment of the present application, by spreading the data and mapping it to the first channel for transmission, increases the code domain resources occupied by the first channel through the spreading sequence, which is equivalent to multiplexing multiple users on the same time-frequency domain resources, avoiding occupying a large amount of physical resources while meeting the requirements of large bandwidth and long time of perception, and avoiding waste of time-frequency domain resources.

[0256] It should be noted that, when the device provided in the above embodiment realizes its function, it only uses the division of the above-mentioned functional modules as an example. In actual application, the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0257] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here. For details not described in detail in the embodiment of the device, reference can be made to the above method embodiment.

[0258] Please refer to Figure 7, which shows a schematic diagram of the structure of a communication device provided in one embodiment of the present application. The communication device can be the first device described above, the second device described above, or the third device described above. The communication device 700 may include: a processor 701, a transceiver 702, and a memory 703. The transceiver 702 is used to implement a sending or receiving function, such as implementing the functions of the transceiver module 510 or the transceiver module 610 described above, and the processor 701 may be used to implement other processing functions or control sending and / or receiving, such as implementing the functions of the processing module 520 described above.

[0259] The processor 701 includes one or more processing cores. The processor 701 executes various functional applications and information processing by running software programs and modules.

[0260] The transceiver 702 may include a receiver and a transmitter. For example, the receiver and the transmitter may be implemented as the same wireless communication component, which may include a wireless communication chip and a radio frequency antenna.

[0261] The memory 703 may be connected to the processor 701 and the transceiver 702 .

[0262] The memory 703 may be used to store a computer program executed by the processor, and the processor 701 is used to execute the computer program to implement each step in the above method embodiment.

[0263] In an exemplary embodiment, when the communication device is a first device, the transceiver 702 is used to receive a first channel, wherein data after spread spectrum processing using a first sequence is mapped to the first channel; and the processor 701 is used to obtain a perception result based on the first channel.

[0264] In an exemplary embodiment, when the communication device is the second device, the transceiver 702 is configured to send a first channel, wherein data subjected to spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a sensing result.

[0265] For details not described in detail in this embodiment, please refer to the above embodiments and will not be described in detail here.

[0266] In addition, the memory can be implemented by any type of volatile or non-volatile storage device or a combination thereof, including but not limited to: magnetic or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.

[0267] An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored, and the computer program is used to be executed by a processor to implement the method for obtaining the perception result of the first device side mentioned above, or to implement the method for obtaining the perception result of the second device side mentioned above. In some embodiments, the computer-readable storage medium may include: ROM (Read-Only Memory), RAM (Random-Access Memory), SSD (Solid State Drives) or optical disks, etc. Among them, random access memory may include ReRAM (Resistance Random Access Memory) and DRAM (Dynamic Random Access Memory).

[0268] An embodiment of the present application also provides a chip, which includes a programmable logic circuit and / or program instructions. When the chip is running, it is used to implement the method for obtaining the perception results on the first device side mentioned above, or to implement the method for obtaining the perception results on the second device side mentioned above.

[0269] An embodiment of the present application also provides a computer program product, which includes a computer program, and the computer program is stored in a computer-readable storage medium. The processor reads and executes the computer program from the computer-readable storage medium to implement the above-mentioned method for obtaining the perception results on the first device side, or implements the above-mentioned method for obtaining the perception results on the second device side.

[0270] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0271] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0272] In some embodiments of the present application, "predefined" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, predefined may refer to information defined in a protocol.

[0273] In some embodiments of the present application, the "protocol" may refer to a standard protocol in the field of communications, for example, it may include an LTE protocol, a NR protocol, and related protocols used in future communication systems, and this application does not limit this.

[0274] In this document, "plurality" refers to two or more. "And / or" describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates an "or" relationship between the associated objects.

[0275] The term “greater than or equal to” mentioned herein may mean greater than or equal to, or greater than, and the term “less than or equal to” may mean less than or equal to, or less than.

[0276] In addition, the step numbers described in this document only illustrate a possible execution order between the steps. In some other embodiments, the above steps may not be executed in the order of the numbers, such as two steps with different numbers are executed at the same time, or two steps with different numbers are executed in the opposite order of the diagram. The embodiments of the present application are not limited to this.

[0277] Those skilled in the art will appreciate 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, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any media that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a general-purpose or special-purpose computer.

[0278] The above description is merely an exemplary embodiment of the present application and is 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 scope of protection of the present application.

Claims

1. A method for obtaining a perception result, characterized in that: The method is performed by a first device, and includes: Receiving a first channel, wherein data after being spread spectrum processed using a first sequence is mapped to the first channel; A sensing result is acquired according to the first channel.

2. The method according to claim 1, characterized in that The first sequence is determined according to first configuration information; or, The first sequence is determined according to the specific information of the first device; or, The first sequence is determined according to first configuration information and specific information of the first device.

3. The method according to claim 2, characterized in that The first configuration information includes at least one of the following: Spreading sequence information; Perceive trigger information; Spread spectrum method information.

4. The method according to claim 3, characterized in that The spreading sequence information includes at least one of the following: The identifier or number of the serial class; The identifier or number of the sequence group; an identifier or number of the first sequence; Spreading factor.

5. The method according to claim 3 or 4, characterized in that: The spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

6. The method according to any one of claims 3 to 5, characterized in that: When the spreading sequence information and / or the spreading mode information is a first agreed value, triggering sensing measurement; or, When the spreading sequence information and / or the spreading mode information is a second agreed value, the sensing measurement is not triggered.

7. The method according to any one of claims 2 to 6, characterized in that: The first sequence is determined according to the first configuration information and the specific information of the first device, including: The first sequence is determined according to the specific information of the first device and a first spreading coefficient, wherein the first spreading coefficient is determined according to the first configuration information; or, The first sequence is determined in a first sequence group according to the specific information of the first device, wherein the first sequence group is determined according to the first configuration information; or, The first sequence is determined within a first type of sequence according to specific information of the first device, wherein the first type of sequence is determined according to the first configuration information.

8. The method according to any one of claims 1 to 7, characterized in that: When time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7; When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

9. The method according to any one of claims 1 to 8, characterized in that: A demodulation reference signal DMRS in the first channel is spread using the first sequence; or, The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

10. The method according to any one of claims 1 to 9, characterized in that: The method further comprises: A transport block size TBS carried by the first channel is determined according to a first parameter, where the first parameter is related to a spreading factor used for spreading the data.

11. The method according to any one of claims 1 to 10, characterized in that: The sensing result is determined according to the DMRS in the first channel; or, The sensing result is determined according to the DMRS and data part in the first channel.

12. The method according to any one of claims 1 to 11, characterized in that: The first channel includes at least one of the following: a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH, a physical uplink shared channel PUSCH, and a physical uplink control channel PUCCH.

13. The method according to any one of claims 1 to 12, characterized in that: The first device is a first terminal device or a first access network device.

14. The method according to any one of claims 1 to 13, characterized in that: The method further comprises: The perception result is sent to a third device, where the third device includes at least one of the following: a third terminal device, a third access network device, a core network element, a perception control network element, and a server.

15. A method for obtaining a perception result, characterized in that: The method is performed by a second device, and includes: A first channel is sent, wherein data after spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a perception result.

16. The method according to claim 15, characterized in that The method further comprises: Receive or send first configuration information, where the first configuration information is used to determine the first sequence.

17. The method according to claim 16, characterized in that The first configuration information includes at least one of the following: Spreading sequence information; Perceive trigger information; Spread spectrum method information.

18. The method according to claim 17, characterized in that The spreading sequence information includes at least one of the following: The identifier or number of the serial class; The identifier or number of the sequence group; the identifier or number of the first sequence; Spreading factor.

19. The method according to claim 17 or 18, characterized in that The spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

20. The method according to any one of claims 15 to 19, characterized in that When time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7; When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

21. The method according to any one of claims 15 to 20, characterized in that The DMRS in the first channel is spread using the first sequence; or, The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

22. The method according to any one of claims 15 to 21, characterized in that The sensing result is determined according to the DMRS in the first channel; or, The sensing result is determined according to the DMRS and data part in the first channel.

23. The method according to any one of claims 15 to 22, characterized in that The first channel includes at least one of the following: a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH, a physical uplink shared channel PUSCH, and a physical uplink control channel PUCCH.

24. The method according to any one of claims 15 to 23, characterized in that The second device is a second terminal device or a second access network device.

25. A device for obtaining a perception result, characterized in that: The device is arranged in a first device, and comprises: A transceiver module, configured to receive a first channel, wherein data after being spread spectrum processed using a first sequence is mapped to the first channel; A processing module is used to obtain a perception result according to the first channel.

26. The device according to claim 25, characterized in that The first sequence is determined according to first configuration information; or, The first sequence is determined according to the specific information of the first device; or, The first sequence is determined according to first configuration information and specific information of the first device.

27. The device according to claim 26, characterized in that The first configuration information includes at least one of the following: Spreading sequence information; Perceive trigger information; Spread spectrum method information.

28. The device according to claim 27, characterized in that The spreading sequence information includes at least one of the following: The identifier or number of the serial class; The identifier or number of the sequence group; the identifier or number of the first sequence; Spreading factor.

29. The device according to claim 27 or 28, characterized in that The spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

30. The device according to any one of claims 27 to 29, characterized in that When the spreading sequence information and / or the spreading mode information is a first agreed value, triggering sensing measurement; or, When the spreading sequence information and / or the spreading mode information is a second agreed value, the sensing measurement is not triggered.

31. The device according to any one of claims 26 to 30, characterized in that The first sequence is determined according to the first configuration information and the specific information of the first device, including: The first sequence is determined according to the specific information of the first device and a first spreading coefficient, wherein the first spreading coefficient is determined according to the first configuration information; or, The first sequence is determined in a first sequence group according to the specific information of the first device, wherein the first sequence group is determined according to the first configuration information; or, The first sequence is determined within a first type of sequence according to specific information of the first device, wherein the first type of sequence is determined according to the first configuration information.

32. The device according to any one of claims 25 to 31, characterized in that When time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7; When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

33. The device according to any one of claims 25 to 32, characterized in that A demodulation reference signal DMRS in the first channel is spread using the first sequence; or, The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

34. The device according to any one of claims 25 to 33, characterized in that The processing module is further used to determine a transport block size TBS carried by the first channel according to a first parameter, where the first parameter is related to a spreading factor used for spreading the data.

35. The device according to any one of claims 25 to 34, characterized in that The sensing result is determined according to the DMRS in the first channel; or, The sensing result is determined according to the DMRS and data part in the first channel.

36. The device according to any one of claims 25 to 35, characterized in that The first channel includes at least one of the following: a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH, a physical uplink shared channel PUSCH, and a physical uplink control channel PUCCH.

37. The device according to any one of claims 25 to 36, characterized in that The first device is a first terminal device or a first access network device.

38. The device according to any one of claims 25 to 37, characterized in that The transceiver module is also used to send the perception result to a third device, and the third device includes at least one of the following: a third terminal device, a third access network device, a core network network element, a perception control network element, and a server.

39. A device for obtaining perception results, characterized in that: The device is arranged in a second device, and comprises: The sending module is used to send a first channel, wherein data after spread spectrum processing using a first sequence is mapped to the first information, and the first channel is used to obtain a perception result.

40. The device according to claim 39, characterized in that The device also includes: The transceiver module is used to receive or send first configuration information, where the first configuration information is used to determine the first sequence.

41. The device according to claim 40, characterized in that The first configuration information includes at least one of the following: Spreading sequence information; Perceive trigger information; Spread spectrum method information.

42. The device according to claim 41, characterized in that The spreading sequence information includes at least one of the following: The identifier or number of the serial class; The identifier or number of the sequence group; an identifier or number of the first sequence; Spreading factor.

43. The device according to claim 41 or 42, characterized in that The spreading mode information is any one of the following: time domain spreading, frequency domain spreading, and time-frequency domain joint spreading.

44. The device according to any one of claims 39 to 43, characterized in that When time domain spreading is used, the spreading factor is 2 or 3 or 4 or 6 or 7; When frequency domain spreading is used, the spreading factor is 2, 3, 4 or 6.

45. The device according to any one of claims 39 to 44, characterized in that The DMRS in the first channel is spread using the first sequence; or, The DMRS in the first channel is spread using a second sequence, and a spreading coefficient corresponding to the second sequence is less than or equal to a spreading coefficient corresponding to the first sequence.

46. ​​The device according to any one of claims 39 to 45, characterized in that The sensing result is determined according to the DMRS in the first channel; or, The sensing result is determined according to the DMRS and data part in the first channel.

47. The device according to any one of claims 39 to 46, characterized in that The first channel includes at least one of the following: a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH, a physical uplink shared channel PUSCH, and a physical uplink control channel PUCCH.

48. The device according to any one of claims 39 to 47, characterized in that The second device is a second terminal device or a second access network device.

49. A communication device, characterized in that: The communication device comprises a processor and a memory, wherein a computer program is stored in the memory, and the processor executes the computer program to implement the method according to any one of claims 1 to 14, or implements the method according to any one of claims 15 to 24.

50. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and the computer program is used to be executed by a processor to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 24.

51. A chip, characterized in that: The chip includes a programmable logic circuit and / or program instructions, and when the chip is running, it is used to implement the method described in any one of claims 1 to 14, or to implement the method described in any one of claims 15 to 24.

52. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. The processor reads and executes the computer instructions from the computer-readable storage medium to implement the method according to any one of claims 1 to 14, or to implement the method according to any one of claims 15 to 24.

Images