Sensing method and apparatus, physical channel transmission method and apparatus, device, and medium

Abstract

The present application relates to the field of mobile communications, and discloses a sensing method and apparatus, a physical channel transmission method and apparatus, a device, and a medium. The method comprises: receiving first information transmitted in a first frequency domain resource in a first time domain unit and second information transmitted in a second frequency domain resource in a second time domain unit, wherein the first frequency domain resource comprises the second frequency domain resource; acquiring data information on the basis of the first information and the second information; and generating sensing information on the basis of the first information. The present application can take into account both sensing needs and data transmission efficiency, that is, there is no need to occupy, due to sensing needs, a large bandwidth in both the first time domain unit and the second time domain unit to transmit signals, but a large bandwidth is independently occupied in the first time domain unit used for sensing and only a small bandwidth is occupied in the second time domain unit used for data transmission.

Description

Perception method, physical channel transmission method, device, equipment and medium Technical Field

[0001] The present application relates to the field of mobile communications, and in particular to a sensing method, a transmission method, an apparatus, a device, and a medium for a physical channel. 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 to achieve target location, motion recognition, and imaging. Traditionally, sensing and wireless communication exist independently, and this separation wastes wireless spectrum and hardware resources.

[0003] Integrated communication and perception technology combines wireless communication and perception, using the same signal to perform both communication and perception, thereby improving spectrum efficiency. The specific implementation of integrated communication and perception requires further discussion and research.

[0004] Summary of the Invention

[0005] This application provides a sensing method, a physical channel transmission method, an apparatus, a device, and a medium. The technical solution is as follows:

[0006] According to one aspect of the present application, a sensing method is provided, which is applied to a receiving device and includes:

[0007] receiving first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit, where the first frequency domain resource includes the second frequency domain resource;

[0008] Acquire data information based on the first information and the second information; and generate perception information based on the first information.

[0009] According to another aspect of the present application, a sensing method is provided, which is applied to a sending device and includes:

[0010] Sending first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit, where the first frequency domain resource includes the second frequency domain resource;

[0011] The first information and the second information are used to obtain data information, and the first information is used to generate perception information.

[0012] According to another aspect of the present application, a physical channel transmission method is provided, the method comprising:

[0013] Transmitting the physical channel through N time domain units, where the N time domain units include a first time domain unit and a second time domain unit;

[0014] The first frequency domain resources occupied by the physical channel in the first time domain unit are greater than the second frequency domain resources occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception.

[0015] According to another aspect of the present application, a sensing device is provided, comprising:

[0016] a receiving module, configured to receive first information transmitted in a first frequency domain resource within a first time domain unit, and second information transmitted in a second frequency domain resource within a second time domain unit, wherein the first frequency domain resource includes the second frequency domain resource;

[0017] An acquisition module is used to acquire data information based on the first information and the second information; a generation module is used to generate perception information based on the first information.

[0018] According to another aspect of the present application, a sensing device is provided, comprising:

[0019] a sending module, configured to send first information transmitted in a first frequency domain resource within a first time domain unit, and second information transmitted in a second frequency domain resource within a second time domain unit, where the first frequency domain resource includes the second frequency domain resource;

[0020] The first information and the second information are used to obtain data information, and the first information is used to generate perception information.

[0021] According to another aspect of the present application, a physical channel transmission device is provided, the device comprising:

[0022] a transmission module, configured to transmit the physical channel through N time domain units, where the N time domain units include a first time domain unit and a second time domain unit;

[0023] The first frequency domain resources occupied by the physical channel in the first time domain unit are greater than the second frequency domain resources occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception.

[0024] According to another aspect of the present application, a terminal device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the terminal device is configured to load and execute the executable instructions to implement the perception method or physical channel transmission method as described in the above aspects.

[0025] According to another aspect of the present application, a network device is provided, comprising: a processor; a transceiver connected to the processor; and a memory for storing executable instructions of the processor; wherein the network device is configured to load and execute the executable instructions to implement the perception method or the physical channel transmission method as described in the above aspects.

[0026] According to another aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by a processor to implement the perception method or physical channel transmission method as described in the above aspects.

[0027] According to another aspect of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement the perception method or physical channel transmission method described in the above aspects based on the programmable logic circuit and / or program.

[0028] According to another aspect of the present application, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium, and a processor reads and executes the computer instructions from the computer-readable storage medium, so that a computer device performs the perception method or physical channel transmission method described in the above aspects.

[0029] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0030] By using a larger bandwidth for data transmission and perception in the first time domain unit and a smaller bandwidth for data transmission in the second time domain unit, both perception requirements and data transmission efficiency can be balanced. This means that perception requirements do not require large bandwidth transmission in both the first and second time domain units. Instead, the first time domain unit used for perception occupies a larger bandwidth, while the second time domain unit used for data transmission only occupies a smaller bandwidth. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic diagram of a DMRS pattern provided by an exemplary embodiment of the present application;

[0033] FIG2 is a schematic diagram of a DMRS pattern provided by an exemplary embodiment of the present application;

[0034] FIG3 is a schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application;

[0035] FIG4 is a schematic diagram of a system architecture of a communication system provided by an exemplary embodiment of the present application;

[0036] FIG5 is a flow chart of a sensing method provided by an exemplary embodiment of the present application;

[0037] FIG6 is a flow chart of a sensing method provided by an exemplary embodiment of the present application;

[0038] FIG7 is a flow chart of a sensing method provided by an exemplary embodiment of the present application;

[0039] FIG8 is a schematic diagram of time-frequency resources occupied by a first DMRS provided by an exemplary embodiment of the present application;

[0040] FIG9 is a schematic diagram of time-frequency resources occupied by a first DMRS provided by an exemplary embodiment of the present application;

[0041] FIG10 is a flow chart of a sensing method provided by an exemplary embodiment of the present application;

[0042] FIG11 is a schematic diagram of time-frequency resources occupied by a second DMRS and a first reference signal provided by an exemplary embodiment of the present application;

[0043] FIG12 is a schematic diagram of time-frequency resources occupied by a second DMRS and a first reference signal provided by an exemplary embodiment of the present application;

[0044] FIG13 is a schematic diagram of time-frequency resources occupied by a second DMRS and a first reference signal provided by an exemplary embodiment of the present application;

[0045] FIG14 is a schematic diagram of time-frequency resources occupied by a second DMRS and a first reference signal provided by an exemplary embodiment of the present application;

[0046] FIG15 is a schematic diagram of time-frequency resources occupied by a second DMRS and a first reference signal provided by an exemplary embodiment of the present application;

[0047] FIG16 is a flowchart of a physical channel transmission method provided by an exemplary embodiment of the present application;

[0048] FIG17 is a block diagram of a sensing device provided by an exemplary embodiment of the present application;

[0049] FIG18 is a block diagram of a sensing device provided by an exemplary embodiment of the present application;

[0050] FIG19 is a block diagram of a transmission device for a physical channel provided by an exemplary embodiment of the present application;

[0051] FIG20 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0052] To make the objectives, technical solutions, and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings. Exemplary embodiments will be described in detail herein, with examples shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0053] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0054] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0055] First, some terms involved in the embodiments of this application are introduced as follows:

[0056] Introducing synaesthesia (communication and perception integration):

[0057] Wireless communication and perception are two key applications of modern radio frequency technology. Perception uses radio waves to detect parameters of the physical environment to achieve target positioning, motion recognition, imaging, and other functions. Traditionally, perception and wireless communication exist independently, and this separation wastes wireless spectrum and hardware resources. With the advent of Beyond 5th Generation Mobile Communication Technology (B5G) and Sixth Generation Mobile Communication Technology (6G), the communication spectrum is moving towards millimeter wave, terahertz, and visible light communications. In the future, the spectrum for wireless communications will overlap with the spectrum for traditional perception.

[0058] Integrated communication and perception technology combines wireless communication and perception, utilizing the same signal to perform both communication and perception, thereby improving spectrum efficiency. Furthermore, wireless communication and wireless perception share increasing similarities in system design, signal processing, and data processing. Therefore, utilizing the same device for both communication and perception can help reduce equipment costs.

[0059] 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.

[0060] This article introduces the demodulation reference signal (DMRS) of the New Radio (NR) Physical Downlink Shared Channel (PDSCH) and Physical Uplink Shared Channel (PUSCH):

[0061] Time domain position:

[0062] PDSCH mapping type A: The pre-DMRS is transmitted on the second or third symbol in the time slot (specifically configured by the base station).

[0063] PDSCH mapping type B: The pre-DMRS is transmitted in the first time domain symbol occupied by the PDSCH.

[0064] PUSCH mapping type A: The position of the pre-DMRS is configured by higher-layer signaling.

[0065] PUSCH mapping type B: The pre-DMRS is transmitted in the first time domain symbol occupied by the PUSCH.

[0066] Additional (extra) DMRS:

[0067] 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 locations of additional DMRS for a single symbol, where l0 represents the leading DMRS.

[0068] Table 1

[0069] Table 2

[0070] DMRS pattern:

[0071] DMRS is only transmitted in the physical resource blocks occupied by PDSCH / PUSCH.

[0072] PDSCH DM-RS configuration type 1: Figure 1 is a schematic diagram of a DMRS pattern provided by an exemplary embodiment of the present application. Taking PDSCH mapping type A pre-DMRS as an example, the resource elements (REs) occupied by the DMRS corresponding to each antenna port are mapped at intervals in the frequency domain. As shown in Figure 1 (a), when a single symbol is used, up to 4 antenna ports can be supported; as shown in Figure 1 (b), when a double symbol is used, up to 8 antenna ports can be supported. The numbers in the figure represent the antenna port numbers.

[0073] PDSCH DM-RS Configuration Type 2: Figure 2 is a schematic diagram of a DMRS pattern provided by an exemplary embodiment of the present application. Taking PDSCH mapping type A pre-DMRS as an example, as shown in Figure 2(a), when a single symbol is used, up to three resource groups (corresponding to different color fills) are supported. Frequency domain spreading is used on two adjacent REs in each group to support two antenna ports. When a double symbol is used, up to 12 antenna ports are supported, as shown in Figure 2(b).

[0074] It should be noted that PUSCH DM-RS configuration type 1 has the same pattern as PDSCH DM-RS configuration type 1. PUSCH DM-RS configuration type 2 has the same pattern as PDSCH DM-RS configuration type 2.

[0075] DMRS sequence:

[0076] The DMRS sequence is calculated according to the formula Generate, where c(i) is a pseudo-random sequence and n represents the index of the bit included in the sequence.

[0077] Introduction to NR PDSCH / PUSCH:

[0078] The base station allocates time-frequency resources for transmitting PDSCH / PUSCH to the terminal device based on factors such as the transport block size (TBS) carried in the PDSCH / PUSCH, channel conditions, and transmission reliability requirements. When the channel conditions are poor and the reliability requirements are high, the base station will select a lower modulation and coding strategy (MCS) level (the lower the MCS level, the lower the code rate), and the corresponding occupied time-frequency resource data will be larger. Currently, NR supports multiple MCS tables. Table 3 shows an MCS table.

[0079] Table 3

[0080] The direct relationship between TBS and time-frequency resources is: the value of TBS is related to N info =N RE ·R·Q m ·υ is related to N RE =min(156,N' RE )·n PRB , n PRB is the number of allocated physical resource blocks (PRBs) (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 code rate indicated, Q m is the modulation order indicated, and υ is the number of transmission layers.

[0081] The coding rate supported by the NR system is limited. From the above description, it can be seen that even when using the lowest coding rate to transmit a small amount of data, the time domain resources and frequency domain resources occupied by PDSCH / PUSCH will not be large.

[0082] Introducing the factors that affect perceived performance:

[0083] Perception accuracy is generally affected by signal bandwidth and signal duration. For example, a larger signal bandwidth results in higher accuracy in distance measurement, while a longer signal duration results in higher accuracy in speed measurement.

[0084] 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 the amount of data carried, transmission reliability, transmission latency, etc.; second, perception requirements. Different perception services have different requirements for signal transmission bandwidth and duration.

[0085] If, to meet perception's time-frequency resource requirements, the base station schedules PDSCH / PUSCH to occupy more time-frequency resources (i.e., larger bandwidth or multiple symbols) for transmission, the following problem arises: when the amount of data to be transmitted is small, the transmitter pads redundant information (dummy bits) to generate larger transport blocks (TBs) for transmission, resulting in reduced system transmission efficiency, wasted power consumption, and increased transmission latency. Failure to consider perception's time-frequency resource requirements can lead to poor perception performance.

[0086] The method provided in the embodiment of the present application realizes balancing perception performance and communication system efficiency during mobile communication data transmission. Figure 3 is a schematic diagram of time-frequency resources provided by an exemplary embodiment of the present application. As shown in Figure 3, the communication device transmits first information in the first frequency domain resource 301 within the first time domain unit, and transmits second information 302 in the second frequency domain resource within the second time domain unit. The first frequency domain resource 301 includes the second frequency domain resource 302, and the first frequency domain resource 301 is larger than the second frequency domain resource 302. The first information and the second information are used by the receiving device to obtain data information, and the first information is used by the receiving device to generate perception information. The above-mentioned transmission refers to sending and / or receiving, and the communication device includes a terminal device and / or a network device.

[0087] In some embodiments, the above method can be applied to the transmission of a physical channel. Continuing with reference to Figure 3, the communication device transmits the physical channel through N time domain units (e.g., time domain symbols, orthogonal frequency division multiplexing (OFDM) symbols) in the time domain (e.g., a time slot), and the N time domain units include a first time domain unit and a second time domain unit. Among them, the first frequency domain resource occupied by the physical channel in the first time domain unit is greater than the second frequency domain resource occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception. Exemplarily, the first symbol (time domain symbol) occupied by the physical channel adopts a large bandwidth transmission, and other symbols adopt a small bandwidth transmission, and the first symbol is used for perception at the same time.

[0088] In some embodiments, the physical channel includes at least one of a PDSCH, a PUSCH, a physical downlink control channel (PDCCH) and a physical uplink control channel (PUCCH).

[0089] By using a larger bandwidth for data transmission and perception in the first time domain unit and a smaller bandwidth for data transmission in the second time domain unit, both perception requirements and data transmission efficiency can be balanced. This means that perception requirements do not require large bandwidth transmission in both the first and second time domain units. Instead, the first time domain unit used for perception occupies a larger bandwidth, while the second time domain unit used for data transmission only occupies a smaller bandwidth.

[0090] 4 shows a schematic diagram of a system architecture of a communication system 400 provided in one embodiment of the present application. The system architecture may include: a terminal device 10 , an access network device 20 , and a core network device 30 .

[0091] The terminal device 10 may refer to a UE (User Equipment), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a wireless communication device, a user agent, or a user apparatus. Optionally, the terminal device 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, an in-vehicle 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 the convenience of description, the above-mentioned devices are collectively referred to as terminal devices.

[0092] It should be noted that there are usually multiple terminal devices 10, and one or more terminal devices 10 can be distributed within each cell managed by the access network device 20. In addition, one or more terminal devices 10 can also be distributed outside the cell managed by the access network device 20. The different terminal devices 10 can communicate with each other based on sidelinks.

[0093] 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. Optionally, a communication relationship can be established between terminal devices 10 and core network equipment 30 through access network equipment 20. For example, in a Long Term Evolution (LTE) system, access network equipment 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs in EUTRAN; in a 5G NR system, access network equipment 20 may be a RAN or one or more gNBs in the RAN.

[0094] The core network equipment 30 primarily provides user connectivity, user management, and service bearering, serving as a bearer network interface to external networks. For example, the core network equipment in a 5G NR system may include devices such as an AMF (Access and Mobility Management Function) entity, a UPF (User Plane Function) entity, and an SMF (Session Management Function) entity. The access network equipment 20 and the core network equipment 30 may be collectively referred to as network equipment.

[0095] In one example, the access network device 20 and the core network device 30 communicate with each other via an air technology, such as the NG interface in a 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via an air technology, such as the Uu interface. The terminal devices 10 communicate with each other via an air technology, such as the PC5 interface.

[0096] FIG5 is a flowchart of a sensing method provided by an exemplary embodiment of the present application. The method may be executed by a receiving device, which includes a terminal device and / or a network device. The method includes:

[0097] Step 502: Receive first information transmitted in a first frequency domain resource within a first time domain unit, and second information transmitted in a second frequency domain resource within a second time domain unit.

[0098] The first frequency domain resource includes the second frequency domain resource, the first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0099] In some embodiments, the starting position and ending position of the second frequency domain resource in the frequency domain are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0100] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0101] The first information and the second information are used by the receiving device to obtain data information. The first information is used by the receiving device to generate perception information, thereby performing perception based on the perception information.

[0102] In some embodiments, the first time domain unit belongs to a time domain unit occupied by a DMRS. For example, in the case where the first time domain unit includes a single time domain unit, the first time domain unit is the first symbol occupied by the DMRS, or a symbol indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a symbol indicated by a preset rule in the symbols occupied by the DMRS. Alternatively, in the case where the first time domain unit includes multiple time domain units, the first time domain unit is the first M symbols occupied by the DMRS, where M is a positive integer greater than 1, or a plurality of symbols indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a plurality of symbols indicated by a preset rule in the symbols occupied by the DMRS.

[0103] Because the time domain symbol occupied by the first DMRS always exists, the above solution can be applied uniformly across scenarios, simplifying the implementation complexity of network devices and terminal devices. When the network device schedules the first time domain unit, it can determine the location of the first time domain unit based on the specific scheduling situation, avoiding fragmented resources in the system and thus improving system efficiency.

[0104] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the receiving device to generate perception information.

[0105] In some embodiments, the first information further includes at least one of the following information:

[0106] Partial data information;

[0107] Partial TB information;

[0108] • First reference signal.

[0109] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0110] In some embodiments, the second information includes at least one of the following information:

[0111] Data information;

[0112] Partial data information;

[0113] TB information;

[0114] Partial TB information.

[0115] In some embodiments, all or part of the data information is mapped to the second frequency domain resources within the first time domain unit, which are not occupied by the DMRS. Since the data only occupies a relatively small second frequency domain resource for transmission, the transmission mechanism of the related technology (the transmission mechanism of the physical channel), such as the TBS determination method, can be reused to the greatest extent.

[0116] In some embodiments, all or part of the data information is mapped to the first frequency domain resources within the first time domain unit, which are not occupied by the reference signal. Since the frequency domain resources occupied by data in different time domain units are different, fragmented resources can be avoided and system efficiency can be improved.

[0117] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by a network device. In some embodiments, the network device indicates the first frequency domain resource via higher-layer signaling or dynamic signaling. In some embodiments, the network device sends signaling to configure the first frequency domain resource in a physical channel for sensing. By having the network device configure the first frequency domain resource, the first frequency domain resource can be appropriately configured based on the accuracy requirements of the sensing service.

[0118] In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0119] A frequency domain resource starting point of the first frequency domain resource;

[0120] The number of frequency domain resources of the first frequency domain resources;

[0121] A frequency domain resource end point of the first frequency domain resource;

[0122] The frequency domain resource interval of the first frequency domain resources.

[0123] In some embodiments, the frequency domain resources include at least one of a resource block (RB), a subcarrier, and a RE.

[0124] In some embodiments, when the configuration information includes a frequency domain resource starting point, the first frequency domain resource can be determined based on the frequency domain resource starting point and at least one of the frequency domain resource end point of the first time domain unit, a preset frequency domain resource end point, and a preset number of frequency domain resources. In some embodiments, when the configuration information includes a frequency domain resource end point, the first frequency domain resource can be determined based on the frequency domain resource end point and at least one of the frequency domain resource starting point of the first time domain unit, a preset frequency domain resource starting point, and a preset number of frequency domain resources. In some embodiments, when the configuration information includes a number of frequency domain resources, the first frequency domain resource can be determined based on the number of frequency domain resources and at least one of the frequency domain resource starting point of the first time domain unit, the frequency domain resource end point of the first time domain unit, a preset frequency domain resource starting point, and a preset frequency domain resource end point. In some embodiments, when the configuration information includes a frequency domain resource interval, the first frequency domain resource can be determined based on the frequency domain resource interval and at least one of the frequency domain resources of the first time domain unit, the preset number of frequency domain resources, the frequency domain resource starting point of the first time domain unit, the frequency domain resource end point of the first time domain unit, the preset frequency domain resource starting point, and the preset frequency domain resource end point. In some embodiments, when the configuration information includes multiple pieces of information in the above configuration information, the first frequency domain resource may be determined with reference to the above content.

[0125] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0126] In some embodiments, the second frequency domain resource is configured by a network device.

[0127] In some embodiments, the first spreading coefficient corresponding to the first time domain unit and the second spreading coefficient corresponding to the second time domain unit are set independently. The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit. In some embodiments, spreading the information transmitted by the first time domain unit refers to frequency domain spreading, which can improve the efficiency of multi-user multiplexing. For example, multiple terminals can occupy the same first time domain symbol and the same first frequency domain resource, and use different spreading sequences to implement code division multiplexing (CDM). In some embodiments, spreading the information transmitted by the second time domain unit refers to frequency domain spreading, which can improve the efficiency of multi-user multiplexing. In some embodiments, the above-mentioned spreading coefficient or spreading sequence identifier (such as index) is indicated by a network device. In some embodiments, the spreading sequence identifier can also be determined based on terminal-specific information (such as terminal identifier (UE ID)).

[0128] In some embodiments, the first spreading factor is greater than the second spreading factor. That is, the spreading factor on the first time domain unit is larger, and the spreading factor on the second time domain unit is smaller. The second time domain unit itself can multiplex multiple users through frequency division multiplexing (FDM), so the number of users multiplexed through spread spectrum can be appropriately reduced.

[0129] For the case of sensing through the first DMRS:

[0130] In some embodiments, the DMRS in the first information includes a first DMRS, which is mapped to a first frequency domain resource within the first time domain unit for transmission. In some embodiments, the first DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the first DMRS is mapped to a second frequency domain resource and a third frequency domain resource within the first time domain unit for transmission, where the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

[0131] In some embodiments, the sequence corresponding to the first DMRS is generated based on the size of the first frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the first DMRS, the larger n is. For frequency domain resources of different sizes, the generated first DMRS sequence is also different.

[0132] In some embodiments, the first DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. The first DMRS is also used for sensing, and the receiving device can generate sensing information based on the first DMRS.

[0133] For the case of sensing through the second DMRS and the first reference signal:

[0134] In some embodiments, the DMRS in the first information includes a second DMRS, and the second DMRS is mapped to a second frequency domain resource in the first time domain unit for transmission.

[0135] In some embodiments, the sequence corresponding to the second DMRS is generated based on the size of the second frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the second DMRS, the larger n is. Different second DMRS sequences are generated for frequency domain resources of different sizes.

[0136] In some embodiments, the second DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the second DMRS is also used for sensing.

[0137] In some embodiments, the first information includes a first reference signal, which is mapped to a third frequency domain resource within the first time domain unit for transmission, wherein the first frequency domain resource includes a third frequency domain resource, and the third frequency domain resource does not overlap with (is different from) the second frequency domain resource.

[0138] In some embodiments, the sequence corresponding to the first reference signal is generated based on the size of the third frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the first reference signal, the larger n is. For frequency domain resources of different sizes, the generated first reference signal sequence is also different.

[0139] The first reference signal is used to generate perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0140] In some embodiments, the second DMRS includes DMRSs corresponding to A ports, and the first reference signal includes DMRSs corresponding to some of the A ports. That is, the DMRSs corresponding to the A ports are transmitted within the second frequency domain resource range within the first time domain unit, and the DMRSs corresponding to some of the A ports are transmitted within the frequency domain resource range other than the second frequency domain resource within the first frequency domain resource. A is a positive integer.

[0141] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0142] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0143] In some embodiments, the sequence corresponding to the first reference signal located in the first portion of frequency domain resources is generated based on the size of the first portion of frequency domain resources, and the sequence corresponding to the first reference signal located in the second portion of frequency domain resources is generated based on the size of the second portion of frequency domain resources. In conjunction with the aforementioned formula for generating a DMRS sequence, different first reference signal sequences are generated for frequency domain resources of different sizes.

[0144] In some embodiments, the receiving device may generate perception information based on the second DMRS and the first reference signal.

[0145] In some embodiments, the frequency domain spacing of physical resources occupied by the first reference signal is greater than the frequency domain spacing of physical resources occupied by the second DMRS, or the frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

[0146] Step 504: Acquire data information according to the first information and the second information.

[0147] In some embodiments, a receiving device demodulates information transmitted within the first frequency domain resources and / or the second frequency domain resources using the DMRS in the first information, thereby being able to obtain data information based on the first information and the second information. The data information is information transmitted by the transmitting device to the receiving device. For example, the information demodulated via the DMRS includes information carried by frequency domain resources other than the frequency domain resources carrying reference signals in the first frequency domain resources and / or the second frequency domain resources.

[0148] Step 506: Generate perception information based on the first information.

[0149] In some embodiments, the sensing information is used to detect a target and / or environment. The receiving device can obtain the sensing information (sensing information) based on the information in the first time domain unit. The sensing information is used to identify the target or measure the environment, such as measuring distance, delay, angle, speed, phase, etc. In some embodiments, the receiving device reports the sensing information.

[0150] It should be noted that for downlink scenarios, the receiving device refers to the terminal device, and the sending device refers to the network device. For uplink scenarios, the receiving device refers to the network device, and the sending device refers to the terminal device. The method provided in the embodiments of the present application can be used for transmission of physical channels. In the uplink scenario, the physical channel includes PUSCH and / or PUCCH. In the downlink scenario, the physical channel includes PDSCH and / or PDCCH.

[0151] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0152] In summary, the method provided in this embodiment balances perception requirements and data transmission efficiency by allowing the first time domain unit to occupy a larger bandwidth for data transmission and perception, and allowing the second time domain unit to occupy a smaller bandwidth for data transmission. Specifically, there is no need to occupy a large bandwidth for signal transmission in both the first and second time domain units to meet perception requirements. Instead, a larger bandwidth is occupied for the first time domain unit used for perception, while a smaller bandwidth is occupied for the second time domain unit used for data transmission.

[0153] FIG6 is a flowchart of a sensing method provided by an exemplary embodiment of the present application. The method may be executed by a sending device, which includes a terminal device and / or a network device. The method includes:

[0154] Step 602: Send first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit.

[0155] The first frequency domain resource includes the second frequency domain resource, the first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0156] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0157] The first information and the second information are used by the receiving device to obtain data information. The first information is used by the receiving device to generate perception information, thereby performing perception based on the perception information.

[0158] In some embodiments, the first time domain unit belongs to a time domain unit occupied by DMRS. In some embodiments, the first time domain unit is the first symbol occupied by DMRS, or the first time domain unit is the first M symbols occupied by DMRS.

[0159] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the receiving device to generate perception information.

[0160] In some embodiments, the first information further includes at least one of the following information:

[0161] Partial data information;

[0162] Partial TB information;

[0163] • First reference signal.

[0164] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0165] In some embodiments, the second information includes at least one of the following information:

[0166] Data information;

[0167] Partial data information;

[0168] TB information;

[0169] Partial TB information.

[0170] In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first time domain unit. In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the reference signal in the first frequency domain resources within the first time domain unit.

[0171] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by the network device. In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0172] A frequency domain resource starting point of the first frequency domain resource;

[0173] The number of frequency domain resources of the first frequency domain resources;

[0174] A frequency domain resource end point of the first frequency domain resource;

[0175] The frequency domain resource interval of the first frequency domain resources.

[0176] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0177] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0178] In some embodiments, the second frequency domain resource is configured by a network device.

[0179] In some embodiments, a first spreading factor corresponding to the first time domain unit and a second spreading factor corresponding to the second time domain unit are independently set. In some embodiments, the spreading of information transmitted by the first time domain unit refers to frequency domain spreading. In some embodiments, the spreading of information transmitted by the second time domain unit refers to frequency domain spreading. In some embodiments, the first spreading factor is greater than the second spreading factor.

[0180] For the case of sensing through the first DMRS:

[0181] In some embodiments, the DMRS in the first information includes a first DMRS, which is mapped to a first frequency domain resource within the first time domain unit for transmission. In some embodiments, the first DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the first DMRS is mapped to a second frequency domain resource and a third frequency domain resource within the first time domain unit for transmission, where the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

[0182] In some embodiments, the sequence corresponding to the first DMRS is generated based on the size of the first frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the reference signal, the larger n is. For frequency domain resources of different sizes, the generated reference signal sequence is also different.

[0183] In some embodiments, the first DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. The first DMRS is also used for sensing, and the receiving device can generate sensing information based on the first DMRS.

[0184] For the case of sensing through the second DMRS and the first reference signal:

[0185] In some embodiments, the DMRS in the first information includes a second DMRS, and the second DMRS is mapped to a second frequency domain resource in the first time domain unit for transmission.

[0186] In some embodiments, the sequence corresponding to the second DMRS is generated based on the size of the second frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the reference signal, the larger n is. For frequency domain resources of different sizes, the generated reference signal sequence is also different.

[0187] In some embodiments, the second DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the second DMRS is also used for sensing.

[0188] In some embodiments, the first information includes a first reference signal, which is mapped to a third frequency domain resource within the first time domain unit for transmission, wherein the first frequency domain resource includes a third frequency domain resource, and the third frequency domain resource does not overlap with (is different from) the second frequency domain resource.

[0189] In some embodiments, the sequence corresponding to the first reference signal is generated based on the size of the third frequency domain resource. In conjunction with the aforementioned formula for generating the DMRS sequence, the larger the size of the frequency domain resource used to generate the reference signal, the larger n is. For frequency domain resources of different sizes, the generated reference signal sequence is also different.

[0190] The first reference signal is used to generate perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0191] In some embodiments, the second DMRS includes DMRSs corresponding to A ports, and the first reference signal includes DMRSs corresponding to some of the A ports. A is a positive integer.

[0192] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0193] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0194] In some embodiments, the sequence corresponding to the first reference signal located in the first portion of frequency domain resources is generated based on the size of the first portion of frequency domain resources, and the sequence corresponding to the first reference signal located in the second portion of frequency domain resources is generated based on the size of the second portion of frequency domain resources. For frequency domain resources of different sizes, the generated reference signal sequences are also different.

[0195] In some embodiments, the receiving device may generate perception information based on the second DMRS and the first reference signal.

[0196] In some embodiments, the frequency domain spacing of physical resources occupied by the first reference signal is greater than the frequency domain spacing of physical resources occupied by the second DMRS, or the frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

[0197] In some embodiments, the above-mentioned perception information is used to detect targets and / or environments.

[0198] The transmitting device is a network device, and the receiving device is a terminal device. Alternatively, the transmitting device is a terminal device, and the receiving device is a network device. The method provided in the embodiment of the present application can be used for transmission of a physical channel. The physical channel includes at least one of a PUSCH, a PUCCH, a PDSCH, and a PDCCH.

[0199] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0200] In summary, the method provided in this embodiment balances perception requirements and data transmission efficiency by allowing the first time domain unit to occupy a larger bandwidth for data transmission and perception, and allowing the second time domain unit to occupy a smaller bandwidth for data transmission. Specifically, there is no need to occupy a large bandwidth for signal transmission in both the first and second time domain units to meet perception requirements. Instead, a larger bandwidth is occupied for the first time domain unit used for perception, while a smaller bandwidth is occupied for the second time domain unit used for data transmission.

[0201] The method provided by the present application allows the first time domain unit to occupy a larger bandwidth for data transmission and perception, and the second time domain unit to occupy a smaller bandwidth for data transmission, thereby taking into account both perception requirements and data transmission efficiency. The implementation of perception can be divided into the following two cases:

[0202] 1. Perception through the first DMRS.

[0203] 2. Perception through the second DMRS and the first reference signal.

[0204] For the first case above:

[0205] FIG7 is a flow chart of a sensing method provided by an exemplary embodiment of the present application. The method can be applied to the system shown in FIG4. The method includes:

[0206] Step 702: The transmitting device transmits first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit to the receiving device, where the first information includes a first DMRS.

[0207] The first frequency domain resource includes the second frequency domain resource, the first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0208] In some embodiments, the starting position and ending position of the second frequency domain resource in the frequency domain are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0209] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0210] In some embodiments, the first time domain unit belongs to a time domain unit occupied by a DMRS. For example, in the case where the first time domain unit includes a single time domain unit, the first time domain unit is the first symbol occupied by the DMRS, or a symbol indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a symbol indicated by a preset rule in the symbols occupied by the DMRS. Alternatively, in the case where the first time domain unit includes multiple time domain units, the first time domain unit is the first M symbols occupied by the DMRS, where M is a positive integer greater than 1, or a plurality of symbols indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a plurality of symbols indicated by a preset rule in the symbols occupied by the DMRS.

[0211] The first DMRS is mapped to the first frequency domain resource within the first time domain unit for transmission. In some embodiments, the first DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the first DMRS is mapped to the second frequency domain resource and the third frequency domain resource within the first time domain unit for transmission, and the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource. In some embodiments, the sequence corresponding to the first DMRS is generated based on the size of the first frequency domain resource. In some embodiments, the first DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. The first DMRS is also used for perception, and the receiving device can generate perception information based on the first DMRS.

[0212] Taking the method provided in an embodiment of the present application for physical channel transmission as an example, Figure 8 is a schematic diagram of the time-frequency resources occupied by the first DMRS provided by an exemplary embodiment of the present application. As shown in Figure 8, in the case of 2 ports, the transmitting device transmits the first DMRS 802 within the range of the first frequency domain resource 801 occupied in the first time domain unit in accordance with the NR DMRS rule (including DMRS sequence generation rule, DMRS pattern). Among them, each first DMRS 802 occupies one RE, corresponding to ports 0 and 1. It should be noted that the DMRS in Figure 8 and subsequent figures are only schematic response interval distribution characteristics, and the number of DMRS and the bandwidth occupied by PDSCH / PUSCH do not strictly adhere to the requirement that one RB includes 12 REs.

[0213] Figure 9 is a schematic diagram of the time-frequency resources occupied by the first DMRS provided by an exemplary embodiment of the present application. As shown in Figure 9, in the case of four ports, the transmitting device transmits the first DMRS 902 and the first DMRS 903 within the first frequency domain resource 901 occupied in the first time domain unit according to the NR DMRS rules (including DMRS sequence generation rules and DMRS patterns). Each first DMRS 902 and the first DMRS 903 occupies one RE, the first DMRS 902 corresponds to ports 0 and 1, and the first DMRS 903 corresponds to ports 2 and 3.

[0214] In some embodiments, the first information further includes at least one of the following information:

[0215] Partial data information;

[0216] Partial TB information.

[0217] In some embodiments, the second information includes at least one of the following information:

[0218] Data information;

[0219] Partial data information;

[0220] TB information;

[0221] Partial TB information.

[0222] In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first time domain unit. In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the reference signal in the first frequency domain resources within the first time domain unit.

[0223] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by a network device. In some embodiments, the network device indicates the first frequency domain resource via higher layer signaling or dynamic signaling. In some embodiments, the network device sends signaling to configure the first frequency domain resource in a physical channel for sensing.

[0224] In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0225] A frequency domain resource starting point of the first frequency domain resource;

[0226] The number of frequency domain resources of the first frequency domain resources;

[0227] A frequency domain resource end point of the first frequency domain resource;

[0228] The frequency domain resource interval of the first frequency domain resources.

[0229] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0230] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0231] In some embodiments, the second frequency domain resource is configured by a network device.

[0232] In some embodiments, the first spreading coefficient corresponding to the first time domain unit and the second spreading coefficient corresponding to the second time domain unit are independently set. In some embodiments, the spreading of information transmitted by the first time domain unit refers to frequency domain spreading, which can improve multi-user multiplexing efficiency. In some embodiments, the spreading of information transmitted by the second time domain unit refers to frequency domain spreading, which can improve multi-user multiplexing efficiency.

[0233] In some embodiments, the first spreading factor is greater than the second spreading factor.

[0234] Step 704: The receiving device obtains data information according to the first information and the second information.

[0235] In some embodiments, a receiving device demodulates information transmitted within the first frequency domain resources and / or the second frequency domain resources using a first DMRS in the first information, thereby being able to obtain data information based on the first information and the second information. The data information is information transmitted by the transmitting device to the receiving device. For example, the information demodulated using the first DMRS includes information carried by frequency domain resources other than the frequency domain resources carrying reference signals in the first frequency domain resources and / or the second frequency domain resources.

[0236] Step 706: The receiving device generates perception information according to the first DMRS.

[0237] In some embodiments, the sensing information is used to detect a target and / or environment. A receiving device can obtain sensing information (sensing information) based on the first DMRS within the first time domain unit. The sensing information is used to identify a target or measure the environment, such as measuring distance, delay, angle, speed, phase, etc. In some embodiments, the receiving device reports the sensing information.

[0238] It should be noted that for downlink scenarios, the receiving device refers to the terminal device, and the sending device refers to the network device. For uplink scenarios, the receiving device refers to the network device, and the sending device refers to the terminal device. The method provided in the embodiments of the present application can be used for transmission of physical channels. In the uplink scenario, the physical channel includes PUSCH and / or PUCCH. In the downlink scenario, the physical channel includes PDSCH and / or PDCCH.

[0239] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0240] In this embodiment, steps 704 and 706 are optional. In different embodiments, one or more of these steps may be omitted or replaced. Steps 704 and 706 may be performed in a swapped order or simultaneously. Steps 702 and 704 may be implemented as independent embodiments; steps 702 and 706 may be implemented as independent embodiments; however, the present invention is not limited thereto.

[0241] Step 702 can be implemented as an independent embodiment, such as being implemented separately as an information sending method on the terminal device side or the network device side, or being implemented separately as an information receiving method on the terminal device side or the network device side; step 702 and step 704 can be implemented as independent embodiments, such as being implemented separately as a data information acquisition method; step 702 and step 706 can be implemented as independent embodiments, such as being implemented separately as a perception method.

[0242] In summary, the method provided in this embodiment balances perception requirements and data transmission efficiency by allowing the first time domain unit to occupy a larger bandwidth for data transmission and perception, and allowing the second time domain unit to occupy a smaller bandwidth for data transmission. Specifically, there is no need to occupy a large bandwidth for signal transmission in both the first and second time domain units to meet perception requirements. Instead, a larger bandwidth is occupied for the first time domain unit used for perception, while a smaller bandwidth is occupied for the second time domain unit used for data transmission.

[0243] The method provided in this embodiment also uses the first time domain unit as the time domain symbol occupied by the first DMRS. Since the time domain symbol occupied by the first DMRS always exists, the above solution can be applied to all scenarios with a unified rule, simplifying the implementation complexity of network devices and terminal devices. In addition, when the network device schedules the first time domain unit, the network device can determine the location of the first time domain unit based on the specific scheduling situation, avoiding scattered resources in the system and thus improving system efficiency.

[0244] The method provided in this embodiment also maximizes the reuse of transmission mechanisms in related technologies by ensuring that data is transmitted only within a smaller portion of the first frequency domain resources. Furthermore, by ensuring that data occupies the first frequency domain resources, since data in different time domain units occupies different frequency domain resources, fragmented resources can be avoided, thereby improving system efficiency.

[0245] The method provided in this embodiment can also realize reasonable configuration of the first frequency domain resources according to the accuracy requirements of the perception service by configuring the first frequency domain resources by the network device.

[0246] The method provided in this embodiment also improves multi-user multiplexing efficiency by spreading the information transmitted by the first and second time domain units. Furthermore, by independently setting the first and second spreading factors, the second time domain unit itself can multiplex multiple users using FDM, thereby appropriately reducing the number of users multiplexed using spread spectrum.

[0247] For the second case above:

[0248] FIG10 is a flow chart of a sensing method provided by an exemplary embodiment of the present application. The method can be applied to the system shown in FIG4. The method includes:

[0249] Step 1002: The transmitting device transmits first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit to the receiving device, where the first information includes a second DMRS and a first reference signal.

[0250] The first frequency domain resource includes the second frequency domain resource, the first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0251] In some embodiments, the frequency domain starting position and ending position of the second frequency domain resource are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0252] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0253] In some embodiments, the first time domain unit belongs to a time domain unit occupied by a DMRS. For example, the first time domain unit is the first symbol occupied by a DMRS. Alternatively, the first time domain unit is the first M symbols occupied by a DMRS, where M is a positive integer greater than 1.

[0254] The second DMRS is mapped to the second frequency domain resource within the first time domain unit for transmission. In some embodiments, the sequence corresponding to the second DMRS is generated based on the size of the second frequency domain resource. In some embodiments, the second DMRS is used to demodulate information transmitted within the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the second DMRS is also used for sensing.

[0255] In some embodiments, the first information includes a first reference signal, which is mapped to a third frequency domain resource within the first time domain unit for transmission. The first frequency domain resource includes a third frequency domain resource, and the third frequency domain resource does not overlap with (is different from) the second frequency domain resource. In some embodiments, the sequence corresponding to the first reference signal is generated based on the size of the third frequency domain resource.

[0256] The first reference signal is used to generate perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0257] In some embodiments, the second DMRS includes DMRSs corresponding to A ports, and the first reference signal includes DMRSs corresponding to some of the A ports. That is, the DMRSs corresponding to the A ports are transmitted within the second frequency domain resource range within the first time domain unit, and the DMRSs corresponding to some of the A ports are transmitted within the frequency domain resource range other than the second frequency domain resource within the first frequency domain resource. A is a positive integer.

[0258] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0259] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0260] In some embodiments, the sequence corresponding to the first reference signal located in the first part of the frequency domain resources is generated according to the size of the first part of the frequency domain resources, and the sequence corresponding to the first reference signal located in the second part of the frequency domain resources is generated according to the size of the second part of the frequency domain resources.

[0261] In some embodiments, the receiving device may generate perception information based on the second DMRS and the first reference signal.

[0262] Taking the method provided in an embodiment of the present application for physical channel transmission as an example, FIG11 is a schematic diagram of the time-frequency resources occupied by the second DMRS and the first reference signal provided in an exemplary embodiment of the present application. As shown in FIG11, the transmitting device transmits the second DMRS 1103 corresponding to A ports within the second frequency domain resource 1102 within the first time domain unit according to the NR DMRS rule (including the DMRS sequence generation rule and the DMRS pattern), and transmits the first reference signal 1104 corresponding to some of the A ports on the other frequency domain resources within the first frequency domain resource 1101 excluding the second frequency domain resource 1102. For the case of two ports (ports 0 and 1), the physical channel is mapped completely according to the NR DMRS rule within the frequency domain resources occupied by the PDSCH / PUSCH, wherein the sequence corresponding to the second DMRS 1103 is generated independently, that is, the sequence length is related to the length of the second frequency domain resource 1102. The first reference signal 1104 transmitted on the frequency domain resources outside the second frequency domain resource 1102 is generated independently, and its pattern still uses the DMRS pattern, for example, the pattern corresponding to port 0. That is, the REs corresponding to ports 0 and 1 on the first frequency domain resource 1101 are used to transmit a first reference signal 1104, but the second DMRS 1103 for demodulating the physical channel is transmitted within the second frequency domain resource 1102. The other resources transmit an independently generated first reference signal 1104 (which can be a single RS sequence, or two RS sequences corresponding to the upper and lower parts, respectively). First reference signal 1104 is a reference signal different from the DMRS. In the above solution, the transmission of the physical channel follows the solution of the related art, which has little impact on product implementation.

[0263] Figure 12 is a schematic diagram of the time-frequency resources occupied by the second DMRS and the first reference signal, provided in an exemplary embodiment of the present application. As shown in Figure 12, the transmitting device transmits second DMRS 1203 and second DMRS 1204 corresponding to A ports within the second frequency domain resource 1202 within the first time domain unit according to the NR DMRS rules (including DMRS sequence generation rules and DMRS pattern), and transmits first reference signals 1205 corresponding to some of the A ports on frequency domain resources other than the second frequency domain resource 1202 within the first frequency domain resource 1201. For the case of four ports (ports 0, 1, 2, and 3), the second DMRS 1203 and second DMRS 1204 corresponding to ports 2 and 3 are generated and mapped in full accordance with the NR DMRS rules within the frequency domain resource interval occupied by the PDSCH / PUSCH. The first reference signal 1205 corresponding to port 0 is generated and mapped within the first frequency domain resource 1201. First reference signal 1205 is a DMRS. In the above solution, the perception signal does not need to be transmitted using multiple ports, which can reduce system overhead.

[0264] Figure 13 is a schematic diagram of the time-frequency resources occupied by the second DMRS and the first reference signal provided by an exemplary embodiment of the present application. As shown in Figure 13, the transmitting device transmits the second DMRS 1303 and the second DMRS 1304 corresponding to A ports within the second frequency domain resource 1302 within the first time domain unit in accordance with the NR DMRS rules (including DMRS sequence generation rules and DMRS pattern), and transmits the first reference signal 1305 corresponding to some of the A ports on the other frequency domain resources within the first frequency domain resource 1301, excluding the second frequency domain resource 1302. For the case of four ports (ports 0, 1, 2, and 3), the second DMRS 1303 and the second DMRS 1304 corresponding to ports 0, 1, 2, and 3 are generated and mapped in full accordance with the NR DMRS rules within the frequency domain resource interval occupied by the PDSCH / PUSCH. The first reference signal 1305 independently generated on other resources can be a single RS sequence, or the upper and lower parts can correspond to two RS sequences respectively. Among them, the first reference signal 1305 is a reference signal different from the DMRS. In the above solution, the transmission of the physical channel follows the solution of related technologies, which has little impact on product implementation.

[0265] In some embodiments, the frequency domain spacing of physical resources occupied by the first reference signal is greater than the frequency domain spacing of physical resources occupied by the second DMRS, or the frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

[0266] Taking the method provided in an embodiment of the present application for physical channel transmission as an example, FIG14 is a schematic diagram of the time-frequency resources occupied by the second DMRS and the first reference signal provided in an exemplary embodiment of the present application. As shown in FIG14 , the transmitting device transmits the second DMRS 1403 and the second DMRS 1404 within the second frequency domain resource 1402 within the first time domain unit in accordance with the NR DMRS rule (including the DMRS sequence generation rule and the DMRS pattern), and transmits the more sparse first reference signal 1405 on the other frequency domain resources within the first frequency domain resource 1401 excluding the second frequency domain resource 1402. Since the perception signal requires large bandwidth transmission but not necessarily high density, designing a sparse first reference signal 1405 can reduce system overhead. The DMRS corresponding to ports 0 and 1 are transmitted within the first frequency domain resource 1401, but the frequency domain density outside the second frequency domain resource 1402 is lower, for example, only one RE is reserved for each of 12 subcarriers (one RB), or even one RE is reserved for multiple RBs. Although the frequency domain density changes, the DMRS sequence is still generated based on the actual number of occupied REs within the first frequency domain resource 1401, corresponding to one DMRS sequence. The second DMRS 1404 corresponding to ports 2 and 3 is transmitted only within the second frequency domain resource 1402. The first reference signal 1405 is a DMRS.

[0267] Figure 15 is a schematic diagram of the time-frequency resources occupied by the second DMRS and the first reference signal, provided by an exemplary embodiment of the present application. As shown in Figure 15, the transmitting device transmits the second DMRS 1503 and the second DMRS 1504 within the second frequency domain resource 1502 within the first time domain unit according to the NR DMRS rules (including the DMRS sequence generation rules and the DMRS pattern), and transmits the more sparse first reference signal 1505 on the frequency domain resources other than the second frequency domain resource 1502 within the first frequency domain resource 1501. For the case of four ports (ports 0, 1, 2, and 3), the second DMRS 1503 and the second DMRS 1504 corresponding to ports 0, 1, 2, and 3 are generated and mapped in full accordance with the NR DMRS rules within the frequency domain resource interval occupied by the PDSCH / PUSCH. The overhead of the first reference signal 1505 outside the second frequency domain resource 1502 is significantly reduced, and its pattern can be independent of the DMRS patterns corresponding to ports 0, 1, 2, and 3, and the sequence is also independently generated. The first reference signal 1505 is a reference signal different from the DMRS.

[0268] In some embodiments, the first information further includes at least one of the following information:

[0269] Partial data information;

[0270] Partial TB information.

[0271] In some embodiments, the second information includes at least one of the following information:

[0272] Data information;

[0273] Partial data information;

[0274] TB information;

[0275] Partial TB information.

[0276] In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first time domain unit. In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the reference signal in the first frequency domain resources within the first time domain unit.

[0277] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by the network device. In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0278] A frequency domain resource starting point of the first frequency domain resource;

[0279] The number of frequency domain resources of the first frequency domain resources;

[0280] A frequency domain resource end point of the first frequency domain resource;

[0281] The frequency domain resource interval of the first frequency domain resources.

[0282] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0283] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0284] In some embodiments, the second frequency domain resource is configured by a network device.

[0285] In some embodiments, a first spreading coefficient corresponding to a first time domain unit and a second spreading coefficient corresponding to a second time domain unit are independently set. The first spreading coefficient is used to spread information transmitted by the first time domain unit, and the second spreading coefficient is used to spread information transmitted by the second time domain unit. In some embodiments, spreading information transmitted by the first time domain unit refers to frequency domain spreading, which can improve multi-user multiplexing efficiency. In some embodiments, spreading information transmitted by the second time domain unit refers to frequency domain spreading, which can improve multi-user multiplexing efficiency.

[0286] In some embodiments, the first spreading factor is greater than the second spreading factor.

[0287] Step 1004: The receiving device obtains data information according to the first information and the second information.

[0288] In some embodiments, a receiving device demodulates information transmitted within the first frequency domain resources and / or the second frequency domain resources using the second DMRS and / or the first reference signal in the first information, thereby being able to obtain data information based on the first information and the second information. The data information is information transmitted by the transmitting device to the receiving device. For example, the information demodulated using the second DMRS and / or the first reference signal includes information carried by frequency domain resources other than the frequency domain resources carrying the reference signal in the first frequency domain resources and / or the second frequency domain resources.

[0289] Step 1006: The receiving device generates perception information according to the second DMRS and the first reference signal.

[0290] In some embodiments, the sensing information is used to detect a target and / or environment. The receiving device can obtain sensing information (sensing information) based on the second DMRS and the first reference signal within the first time domain unit. The sensing information is used to identify the target or measure the environment, such as measuring distance, delay, angle, speed, phase, etc. In some embodiments, the receiving device reports the sensing information.

[0291] It should be noted that for downlink scenarios, the receiving device refers to the terminal device, and the sending device refers to the network device. For uplink scenarios, the receiving device refers to the network device, and the sending device refers to the terminal device. The method provided in the embodiments of the present application can be used for transmission of physical channels. In the uplink scenario, the physical channel includes PUSCH and / or PUCCH. In the downlink scenario, the physical channel includes PDSCH and / or PDCCH.

[0292] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0293] In this embodiment, steps 1004 and 1006 are optional. In different embodiments, one or more of these steps may be omitted or replaced. Steps 1004 and 1006 may be performed in a swapped order or simultaneously. Steps 1002 and 1004 may be implemented as independent embodiments; steps 1002 and 1006 may be implemented as independent embodiments; however, the present invention is not limited thereto.

[0294] Step 1002 can be implemented as an independent embodiment, such as being implemented separately as an information sending method on the terminal device side or the network device side, or being implemented separately as an information receiving method on the terminal device side or the network device side; step 1002 and step 1004 can be implemented as independent embodiments, such as being implemented separately as a data information acquisition method; step 1002 and step 1006 can be implemented as independent embodiments, such as being implemented separately as a perception method.

[0295] In summary, the method provided in this embodiment balances perception requirements and data transmission efficiency by allowing the first time domain unit to occupy a larger bandwidth for data transmission and perception, and allowing the second time domain unit to occupy a smaller bandwidth for data transmission. Specifically, there is no need to occupy a large bandwidth for signal transmission in both the first and second time domain units to meet perception requirements. Instead, a larger bandwidth is occupied for the first time domain unit used for perception, while a smaller bandwidth is occupied for the second time domain unit used for data transmission.

[0296] The method provided in this embodiment also uses the first time domain unit as the time domain symbol occupied by the first DMRS. Since the time domain symbol occupied by the first DMRS always exists, the above solution can be applied to all scenarios with a unified rule, simplifying the implementation complexity of network devices and terminal devices. In addition, when the network device schedules the first time domain unit, the network device can determine the location of the first time domain unit based on the specific scheduling situation, avoiding scattered resources in the system and thus improving system efficiency.

[0297] The method provided in this embodiment also maximizes the reuse of transmission mechanisms in related technologies by ensuring that data is transmitted only within a smaller portion of the first frequency domain resources. Furthermore, by ensuring that data occupies the first frequency domain resources, since data in different time domain units occupies different frequency domain resources, fragmented resources can be avoided, thereby improving system efficiency.

[0298] The method provided in this embodiment can also realize reasonable configuration of the first frequency domain resources according to the accuracy requirements of the perception service by configuring the first frequency domain resources by the network device.

[0299] The method provided in this embodiment also improves multi-user multiplexing efficiency by spreading the information transmitted by the first and second time domain units. Furthermore, by independently setting the first and second spreading factors, the second time domain unit itself can multiplex multiple users using FDM, thereby appropriately reducing the number of users multiplexed using spread spectrum.

[0300] The method provided in this embodiment also transmits the reference signal in the manner shown in FIG11, which allows the transmission of the physical channel to continue to use the solution of the related technology, with less impact on product implementation. In addition, by transmitting the reference signal in the manner shown in FIG12, since the perception signal does not need to adopt multi-port transmission, system overhead can be saved. In addition, by transmitting the reference signal in the manner shown in FIG13, the transmission of the physical channel can continue to use the solution of the related technology, with less impact on product implementation. In addition, by transmitting the reference signal in the manner shown in FIG14, since the perception signal requires large bandwidth transmission but not necessarily high density, designing a sparse first reference signal can reduce system overhead. In addition, by transmitting the reference signal in the manner shown in FIG15, the overhead of the first reference signal outside the second frequency domain resources can be significantly reduced.

[0301] Taking the method provided in the above embodiment as an example of applying it to physical channel transmission, FIG16 is a flow chart of a physical channel transmission method provided by an exemplary embodiment of the present application. The method can be applied to a communication device, including a terminal device and / or a network device. The method includes:

[0302] Step 1602: Transmit a physical channel via N time domain units.

[0303] The N time domain units include a first time domain unit and a second time domain unit, where N is a positive integer. A first frequency domain resource occupied by the physical channel in the first time domain unit is greater than a second frequency domain resource occupied by the physical channel in the second time domain unit, and first information transmitted by the physical channel in the first time domain unit is used for sensing.

[0304] In some embodiments, the starting position and ending position of the second frequency domain resource in the frequency domain are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0305] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0306] The first information and the second information transmitted by the first time domain unit are used by the receiving device to obtain data information. The first information is used by the receiving device to generate perception information, thereby performing perception based on the perception information.

[0307] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by the network device. Optionally, the first time domain unit includes one or more time domain units.

[0308] Optionally, the configuration signaling used to configure the first frequency domain resource includes at least one of the following configuration information:

[0309] A frequency domain resource starting point of the first frequency domain resource;

[0310] The number of frequency domain resources of the first frequency domain resources;

[0311] A frequency domain resource end point of the first frequency domain resource;

[0312] The frequency domain resource interval of the first frequency domain resources.

[0313] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0314] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0315] In some embodiments, the second frequency domain resource is configured by a network device. The second frequency domain resource is used to transmit at least one of the following information:

[0316] Data information of physical channels;

[0317] Partial data information of the physical channel;

[0318] TB information;

[0319] Partial TB information;

[0320] Signaling.

[0321] The signaling includes at least one of downlink control information (Downlink Control Information, DCI) and uplink control information (Uplink Control Information, UCI).

[0322] In some embodiments, information transmitted by the physical channel in the first time domain unit is used for sensing and data transmission.

[0323] In some embodiments, the data information of the physical channel in the first time domain unit is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first frequency domain resources. In some embodiments, the data information of the physical channel in the first time domain unit is mapped to the frequency domain resources not occupied by the DMRS in the first frequency domain resources.

[0324] In some embodiments, frequency domain spreading is performed for transmission of reference signals and / or data information within the first time domain unit. In some embodiments, a first spreading coefficient corresponding to the first time domain unit and a second spreading coefficient corresponding to the second time domain unit are independently set. The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit.

[0325] In some embodiments, the information transmitted by the first time domain unit is spread in the frequency domain, which can improve multi-user multiplexing efficiency. In some embodiments, the information transmitted by the second time domain unit is spread in the frequency domain, which can improve multi-user multiplexing efficiency. In some embodiments, the first spreading factor is greater than the second spreading factor.

[0326] In some embodiments, the first time domain unit is a time domain unit in which a DMRS of a physical channel is located, and the DMRS is used for sensing. For example, in the case where the first time domain unit includes a single time domain unit, the first time domain unit is the first symbol occupied by the DMRS, or a symbol indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a symbol indicated by a preset rule in the symbols occupied by the DMRS. Alternatively, in the case where the first time domain unit includes multiple time domain units, the first time domain unit is the first M symbols occupied by the DMRS, where M is a positive integer greater than 1, or a plurality of symbols indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a plurality of symbols indicated by a preset rule in the symbols occupied by the DMRS.

[0327] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the receiving device to generate perception information.

[0328] In some embodiments, the first information further includes at least one of the following information:

[0329] Partial data information;

[0330] Partial TB information;

[0331] • First reference signal.

[0332] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0333] In some embodiments, the DMRS in the first information is mapped to the first frequency domain resource in the first time domain unit for transmission. In some embodiments, the DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the DMRS is mapped to the second frequency domain resource and the third frequency domain resource in the first time domain unit for transmission, and the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource. In some embodiments, the sequence corresponding to the DMRS is generated based on the size of the first frequency domain resource. In some embodiments, the DMRS is used to demodulate the information transmitted in the first frequency domain resource and / or the second frequency domain resource. DMRS is also used for perception, and the receiving device can generate perception information based on the DMRS.

[0334] In some embodiments, a first range within the first frequency domain resource is used to transmit DMRSs corresponding to A ports, and a second range within the first frequency domain resource is used to transmit first reference signals corresponding to some of the A ports. The first range is a range corresponding to the second frequency domain resource within the first frequency domain resource, the second range is a range within the first frequency domain resource excluding the first range, and the first reference signal is used for sensing. A is a positive integer.

[0335] In some embodiments, a first range within the first frequency domain resource is used to transmit a DMRS corresponding to A ports, and a second range within the first frequency domain resource is used to transmit a first reference signal corresponding to some of the A ports. The first range is the range corresponding to the second frequency domain resource within the first frequency domain resource, and the second range is the range within the first frequency domain resource excluding the first range. The first reference signal is used for sensing, and the frequency domain density of the first reference signal is lower than that of the DMRS. Alternatively, the frequency domain interval of the physical resources occupied by the first reference signal is greater than the frequency domain interval of the physical resources occupied by the DMRS.

[0336] In some embodiments, DMRS is used for demodulation of a physical channel, and the first reference signal is different from the DMRS. In some embodiments, DMRS is used for demodulation of a physical channel, and the DMRS and the first reference signal are used for sensing. In some embodiments, the first reference signal is DMRS.

[0337] In some embodiments, the DMRS is mapped to the second frequency domain resource within the first time domain unit for transmission. In some embodiments, the sequence corresponding to the DMRS is generated based on the size of the second frequency domain resource. In some embodiments, the DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used for perception. In some embodiments, the first reference signal is mapped to the third frequency domain resource within the first time domain unit for transmission. The first frequency domain resource includes the third frequency domain resource, and the third frequency domain resource does not overlap (is different) from the second frequency domain resource. In some embodiments, the sequence corresponding to the first reference signal is generated based on the size of the third frequency domain resource. The first reference signal is used to generate perception information. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0338] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0339] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0340] In some embodiments, the sequence corresponding to the first reference signal located in the first part of the frequency domain resources is generated according to the size of the first part of the frequency domain resources, and the sequence corresponding to the first reference signal located in the second part of the frequency domain resources is generated according to the size of the second part of the frequency domain resources.

[0341] In some embodiments, the communication device can also transmit a physical channel via a single time domain unit, wherein the frequency domain resources occupied by the data information transmitted by the physical channel in the single time domain unit are smaller than the frequency domain resources occupied by the reference signal used for sensing in the single time domain unit.

[0342] In some embodiments, the above-mentioned perception is used to detect targets and / or environments.

[0343] In some embodiments, the physical channel includes at least one of the following:

[0344] PDSCH;

[0345] PDCCH;

[0346] PUSCH;

[0347] PUCCH.

[0348] It should be noted that the above-mentioned transmission includes sending and / or receiving. When transmission refers to sending, the method provided in this embodiment can be applied to a terminal or a network device. When transmission refers to receiving, the method provided in this embodiment can be applied to a terminal or a network device.

[0349] In summary, the method provided in this embodiment balances perception requirements and data transmission efficiency by allowing the first time domain unit to occupy a larger bandwidth for data transmission and perception, and allowing the second time domain unit to occupy a smaller bandwidth for data transmission. Specifically, there is no need to occupy a large bandwidth for signal transmission in both the first and second time domain units to meet perception requirements. Instead, a larger bandwidth is occupied for the first time domain unit used for perception, while a smaller bandwidth is occupied for the second time domain unit used for data transmission.

[0350] It should be noted that the order of the method steps provided in the embodiments of the present application can be appropriately adjusted, the steps can also be increased or decreased accordingly according to the circumstances, and different steps can be freely combined to form new embodiments. Any person skilled in the art who is familiar with the present invention can easily think of the method of variation within the technical scope disclosed in this application, and should be included in the protection scope of this application, so it will not be repeated here. In addition, the order of the above-mentioned different situations does not have a preferred meaning, but is only for the convenience of expression.

[0351] FIG17 is a block diagram of a sensing device provided by an exemplary embodiment of the present application. As shown in FIG17 , the device includes:

[0352] The receiving module 1701 is configured to receive first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit, where the first frequency domain resource includes the second frequency domain resource.

[0353] The first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0354] In some embodiments, the starting position and ending position of the second frequency domain resource in the frequency domain are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0355] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0356] The first information and the second information are used to obtain data information. The first information is used to generate perception information, so as to perform perception based on the perception information.

[0357] In some embodiments, the first time domain unit belongs to a time domain unit occupied by a DMRS. For example, in the case where the first time domain unit includes a single time domain unit, the first time domain unit is the first symbol occupied by the DMRS, or a symbol indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a symbol indicated by a preset rule in the symbols occupied by the DMRS. Alternatively, in the case where the first time domain unit includes multiple time domain units, the first time domain unit is the first M symbols occupied by the DMRS, where M is a positive integer greater than 1, or a plurality of symbols indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a plurality of symbols indicated by a preset rule in the symbols occupied by the DMRS.

[0358] Because the time domain symbol occupied by the first DMRS always exists, the above solution can be applied uniformly across scenarios, simplifying the implementation complexity of network devices and terminal devices. When the network device schedules the first time domain unit, it can determine the location of the first time domain unit based on the specific scheduling situation, avoiding fragmented resources in the system and thus improving system efficiency.

[0359] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the device to generate perception information.

[0360] In some embodiments, the first information further includes at least one of the following information:

[0361] Partial data information;

[0362] Partial TB information;

[0363] • First reference signal.

[0364] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0365] In some embodiments, the second information includes at least one of the following information:

[0366] Data information;

[0367] Partial data information;

[0368] TB information;

[0369] Partial TB information.

[0370] In some embodiments, all or part of the data information is mapped to the second frequency domain resources within the first time domain unit, which are not occupied by the DMRS. Since the data only occupies a relatively small second frequency domain resource for transmission, the transmission mechanism of the related technology (the transmission mechanism of the physical channel), such as the TBS determination method, can be reused to the greatest extent.

[0371] In some embodiments, all or part of the data information is mapped to the first frequency domain resources within the first time domain unit, which are not occupied by the reference signal. Since the frequency domain resources occupied by data in different time domain units are different, fragmented resources can be avoided and system efficiency can be improved.

[0372] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by a network device. In some embodiments, the network device indicates the first frequency domain resource via higher-layer signaling or dynamic signaling. In some embodiments, the network device sends signaling to configure the first frequency domain resource in a physical channel for sensing. By having the network device configure the first frequency domain resource, the first frequency domain resource can be appropriately configured based on the accuracy requirements of the sensing service.

[0373] In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0374] A frequency domain resource starting point of the first frequency domain resource;

[0375] The number of frequency domain resources of the first frequency domain resources;

[0376] A frequency domain resource end point of the first frequency domain resource;

[0377] The frequency domain resource interval of the first frequency domain resources.

[0378] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0379] In some embodiments, when the configuration information includes a frequency domain resource starting point, the first frequency domain resource can be determined based on the frequency domain resource starting point and at least one of the frequency domain resource end point of the first time domain unit, a preset frequency domain resource end point, and a preset number of frequency domain resources. In some embodiments, when the configuration information includes a frequency domain resource end point, the first frequency domain resource can be determined based on the frequency domain resource end point and at least one of the frequency domain resource starting point of the first time domain unit, a preset frequency domain resource starting point, and a preset number of frequency domain resources. In some embodiments, when the configuration information includes a number of frequency domain resources, the first frequency domain resource can be determined based on the number of frequency domain resources and at least one of the frequency domain resource starting point of the first time domain unit, the frequency domain resource end point of the first time domain unit, a preset frequency domain resource starting point, and a preset frequency domain resource end point. In some embodiments, when the configuration information includes a frequency domain resource interval, the first frequency domain resource can be determined based on the frequency domain resource interval and at least one of the frequency domain resources of the first time domain unit, the preset number of frequency domain resources, the frequency domain resource starting point of the first time domain unit, the frequency domain resource end point of the first time domain unit, the preset frequency domain resource starting point, and the preset frequency domain resource end point. In some embodiments, when the configuration information includes multiple pieces of information in the above configuration information, the first frequency domain resource may be determined with reference to the above content.

[0380] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0381] In some embodiments, the second frequency domain resource is configured by a network device.

[0382] In some embodiments, the first spreading coefficient corresponding to the first time domain unit and the second spreading coefficient corresponding to the second time domain unit are set independently. The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit. In some embodiments, spreading the information transmitted by the first time domain unit refers to frequency domain spreading, which can improve the efficiency of multi-user multiplexing. For example, multiple terminals can occupy the same first time domain symbol and the same first frequency domain resource, and use different spreading sequences to implement CDM. In some embodiments, spreading the information transmitted by the second time domain unit refers to frequency domain spreading, which can improve the efficiency of multi-user multiplexing. In some embodiments, the above-mentioned spreading coefficient or spreading sequence identifier (such as index) is indicated by a network device. In some embodiments, the spreading sequence identifier can also be determined based on terminal-specific information (such as terminal identifier (UE ID)).

[0383] In some embodiments, the first spreading factor is greater than the second spreading factor. That is, the spreading factor on the first time domain unit is larger, and the spreading factor on the second time domain unit is smaller. The second time domain unit itself can multiplex multiple users using FDM, so the number of users multiplexed using spread spectrum can be appropriately reduced.

[0384] For the case of sensing through the first DMRS:

[0385] In some embodiments, the DMRS in the first information includes a first DMRS, which is mapped to a first frequency domain resource within the first time domain unit for transmission. In some embodiments, the first DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the first DMRS is mapped to a second frequency domain resource and a third frequency domain resource within the first time domain unit for transmission, where the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

[0386] In some embodiments, the sequence corresponding to the first DMRS is generated according to the size of the first frequency domain resource.

[0387] In some embodiments, the first DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. The first DMRS is also used for sensing.

[0388] For the case of sensing through the second DMRS and the first reference signal:

[0389] In some embodiments, the DMRS in the first information includes a second DMRS, and the second DMRS is mapped to a second frequency domain resource in the first time domain unit for transmission.

[0390] In some embodiments, the sequence corresponding to the second DMRS is generated according to the size of the second frequency domain resources.

[0391] In some embodiments, the second DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the second DMRS is also used for sensing.

[0392] In some embodiments, the first information includes a first reference signal, which is mapped to a third frequency domain resource within the first time domain unit for transmission, wherein the first frequency domain resource includes a third frequency domain resource, and the third frequency domain resource does not overlap with (is different from) the second frequency domain resource.

[0393] In some embodiments, the sequence corresponding to the first reference signal is generated according to the size of the third frequency domain resource.

[0394] The first reference signal is used to generate perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0395] In some embodiments, the second DMRS includes DMRSs corresponding to A ports, and the first reference signal includes DMRSs corresponding to some of the A ports. That is, the DMRSs corresponding to the A ports are transmitted within the second frequency domain resource range within the first time domain unit, and the DMRSs corresponding to some of the A ports are transmitted within the frequency domain resource range other than the second frequency domain resource within the first frequency domain resource. A is a positive integer.

[0396] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0397] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0398] In some embodiments, the sequence corresponding to the first reference signal located in the first part of the frequency domain resources is generated according to the size of the first part of the frequency domain resources, and the sequence corresponding to the first reference signal located in the second part of the frequency domain resources is generated according to the size of the second part of the frequency domain resources.

[0399] In some embodiments, the perception information is generated based on the second DMRS and the first reference signal.

[0400] In some embodiments, the frequency domain spacing of physical resources occupied by the first reference signal is greater than the frequency domain spacing of physical resources occupied by the second DMRS, or the frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

[0401] The acquisition module 1702 is configured to acquire data information according to the first information and the second information.

[0402] In some embodiments, the acquisition module demodulates information transmitted in the first frequency domain resource and / or the second frequency domain resource using the DMRS in the first information, thereby being able to obtain data information based on the first information and the second information. The data information is information transmitted by the transmitting device to the apparatus. For example, the information demodulated via the DMRS includes information carried by frequency domain resources other than the frequency domain resources carrying reference signals in the first frequency domain resource and / or the second frequency domain resource.

[0403] The generating module 1703 is configured to generate perception information according to the first information.

[0404] In some embodiments, the sensing information is used to detect a target and / or environment. The generation module 1703 can obtain sensing information (sensing information) based on the information in the first time domain unit. The sensing information is used to identify the target or measure the environment, such as measuring distance, delay, angle, speed, phase, etc. In some embodiments, the device reports the sensing information via the sending module.

[0405] In some embodiments, the generating module 1703 is configured to generate perception information according to the first DMRS.

[0406] In some embodiments, the generating module 1703 is configured to generate the perception information according to the second DMRS and the first reference signal.

[0407] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0408] FIG18 is a block diagram of a sensing device provided by an exemplary embodiment of the present application. As shown in FIG18 , the device includes:

[0409] A sending module 1801 is configured to send first information transmitted in a first frequency domain resource within a first time domain unit and second information transmitted in a second frequency domain resource within a second time domain unit, where the first frequency domain resource includes the second frequency domain resource;

[0410] The first information and the second information are used to obtain data information, and the first information is used to generate perception information.

[0411] The first frequency domain resource is larger than the second frequency domain resource, and the number of frequency domain units occupied by the first frequency domain resource is larger than the number of frequency domain units occupied by the second frequency domain resource. In some embodiments, the frequency domain unit refers to RE or subcarrier.

[0412] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0413] In some embodiments, the first time domain unit belongs to a time domain unit occupied by DMRS. In some embodiments, the first time domain unit is the first symbol occupied by DMRS, or the first time domain unit is the first M symbols occupied by DMRS.

[0414] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the receiving device to generate perception information.

[0415] In some embodiments, the first information further includes at least one of the following information:

[0416] Partial data information;

[0417] Partial TB information;

[0418] • First reference signal.

[0419] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0420] In some embodiments, the second information includes at least one of the following information:

[0421] Data information;

[0422] Partial data information;

[0423] TB information;

[0424] Partial TB information.

[0425] In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first time domain unit. In some embodiments, all or part of the data information is mapped to the frequency domain resources not occupied by the reference signal in the first frequency domain resources within the first time domain unit.

[0426] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by the network device. In some embodiments, the configuration signaling for configuring the first frequency domain resource includes at least one of the following configuration information:

[0427] A frequency domain resource starting point of the first frequency domain resource;

[0428] The number of frequency domain resources of the first frequency domain resources;

[0429] A frequency domain resource end point of the first frequency domain resource;

[0430] The frequency domain resource interval of the first frequency domain resources.

[0431] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0432] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0433] In some embodiments, the second frequency domain resource is configured by a network device.

[0434] In some embodiments, a first spreading factor corresponding to the first time domain unit and a second spreading factor corresponding to the second time domain unit are independently set. In some embodiments, the spreading of information transmitted by the first time domain unit refers to frequency domain spreading. In some embodiments, the spreading of information transmitted by the second time domain unit refers to frequency domain spreading. In some embodiments, the first spreading factor is greater than the second spreading factor.

[0435] For the case of sensing through the first DMRS:

[0436] In some embodiments, the DMRS in the first information includes a first DMRS, which is mapped to a first frequency domain resource within the first time domain unit for transmission. In some embodiments, the first DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the first DMRS is mapped to a second frequency domain resource and a third frequency domain resource within the first time domain unit for transmission, where the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

[0437] In some embodiments, the sequence corresponding to the first DMRS is generated according to the size of the first frequency domain resource.

[0438] In some embodiments, the first DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. The first DMRS is also used for sensing, and the receiving device can generate sensing information based on the first DMRS.

[0439] For the case of sensing through the second DMRS and the first reference signal:

[0440] In some embodiments, the DMRS in the first information includes a second DMRS, and the second DMRS is mapped to a second frequency domain resource in the first time domain unit for transmission.

[0441] In some embodiments, the sequence corresponding to the second DMRS is generated according to the size of the second frequency domain resources.

[0442] In some embodiments, the second DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the second DMRS is also used for sensing.

[0443] In some embodiments, the first information includes a first reference signal, which is mapped to a third frequency domain resource within the first time domain unit for transmission, wherein the first frequency domain resource includes a third frequency domain resource, and the third frequency domain resource does not overlap with (is different from) the second frequency domain resource.

[0444] In some embodiments, the sequence corresponding to the first reference signal is generated according to the size of the third frequency domain resource.

[0445] The first reference signal is used to generate perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0446] In some embodiments, the second DMRS includes DMRSs corresponding to A ports, and the first reference signal includes DMRSs corresponding to some of the A ports. A is a positive integer.

[0447] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0448] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0449] In some embodiments, the sequence corresponding to the first reference signal located in the first part of the frequency domain resources is generated according to the size of the first part of the frequency domain resources, and the sequence corresponding to the first reference signal located in the second part of the frequency domain resources is generated according to the size of the second part of the frequency domain resources.

[0450] In some embodiments, the receiving device may generate perception information based on the second DMRS and the first reference signal.

[0451] In some embodiments, the frequency domain spacing of physical resources occupied by the first reference signal is greater than the frequency domain spacing of physical resources occupied by the second DMRS, or the frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

[0452] In some embodiments, the above-mentioned perception information is used to detect targets and / or environments.

[0453] It should be noted that the perception in the embodiments of the present application may specifically refer to (be equivalent to / replaced by) positioning, ranging, speed measurement, angle measurement, target imaging, target detection, target tracking and target recognition, etc.

[0454] FIG19 is a block diagram of a transmission device for a physical channel provided by an exemplary embodiment of the present application. As shown in FIG19 , the device includes:

[0455] A transmission module 1901 is configured to transmit the physical channel through N time domain units, where the N time domain units include a first time domain unit and a second time domain unit;

[0456] The first frequency domain resources occupied by the physical channel in the first time domain unit are greater than the second frequency domain resources occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception.

[0457] In some embodiments, the starting position and ending position of the second frequency domain resource in the frequency domain are both within the first frequency domain resource. In some embodiments, the frequency domain starting position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain ending position of the second frequency domain resource is within the first frequency domain resource. In some embodiments, the frequency domain ending position of the second frequency domain resource is the same as that of the first frequency domain resource, but the frequency domain starting position of the second frequency domain resource is within the first frequency domain resource.

[0458] In some embodiments, the first time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol, and the second time domain unit includes at least one of a time slot, a time domain symbol, and an OFDM symbol.

[0459] The first information and the second information transmitted by the first time domain unit are used by the receiving device to obtain data information. The first information is used by the receiving device to generate perception information, thereby performing perception based on the perception information.

[0460] In some embodiments, the first time domain unit and the first frequency domain resource are indicated by the network device. Optionally, the first time domain unit includes one or more time domain units.

[0461] Optionally, the configuration signaling used to configure the first frequency domain resource includes at least one of the following configuration information:

[0462] A frequency domain resource starting point of the first frequency domain resource;

[0463] The number of frequency domain resources of the first frequency domain resources;

[0464] A frequency domain resource end point of the first frequency domain resource;

[0465] The frequency domain resource interval of the first frequency domain resources.

[0466] In some embodiments, the frequency domain resources include at least one of RBs, subcarriers, and REs.

[0467] It should be noted that the above-mentioned frequency domain resources are equivalent to / replaceable with physical resources.

[0468] In some embodiments, the second frequency domain resource is configured by a network device. The second frequency domain resource is used to transmit at least one of the following information:

[0469] Data information of physical channels;

[0470] Partial data information of the physical channel;

[0471] TB information;

[0472] Partial TB information;

[0473] Signaling.

[0474] The signaling includes at least one of downlink control information (Downlink Control Information, DCI) and uplink control information (Uplink Control Information, UCI).

[0475] In some embodiments, information transmitted by the physical channel in the first time domain unit is used for sensing and data transmission.

[0476] In some embodiments, the data information of the physical channel in the first time domain unit is mapped to the frequency domain resources not occupied by the DMRS in the second frequency domain resources within the first frequency domain resources. In some embodiments, the data information of the physical channel in the first time domain unit is mapped to the frequency domain resources not occupied by the DMRS in the first frequency domain resources.

[0477] In some embodiments, frequency domain spreading is performed for transmission of reference signals and / or data information within the first time domain unit. In some embodiments, a first spreading coefficient corresponding to the first time domain unit and a second spreading coefficient corresponding to the second time domain unit are independently set. The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit.

[0478] In some embodiments, the information transmitted by the first time domain unit is spread in the frequency domain, which can improve multi-user multiplexing efficiency. In some embodiments, the information transmitted by the second time domain unit is spread in the frequency domain, which can improve multi-user multiplexing efficiency. In some embodiments, the first spreading factor is greater than the second spreading factor.

[0479] In some embodiments, the first time domain unit is a time domain unit in which a DMRS of a physical channel is located, and the DMRS is used for sensing. For example, in the case where the first time domain unit includes a single time domain unit, the first time domain unit is the first symbol occupied by the DMRS, or a symbol indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a symbol indicated by a preset rule in the symbols occupied by the DMRS. Alternatively, in the case where the first time domain unit includes multiple time domain units, the first time domain unit is the first M symbols occupied by the DMRS, where M is a positive integer greater than 1, or a plurality of symbols indicated by the network device through configuration signaling in the symbols occupied by the DMRS, or a plurality of symbols indicated by a preset rule in the symbols occupied by the DMRS.

[0480] In some embodiments, the first information includes a DMRS, which is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used by the receiving device to generate perception information.

[0481] In some embodiments, the first information further includes at least one of the following information:

[0482] Partial data information;

[0483] Partial TB information;

[0484] • First reference signal.

[0485] The first reference signal is used to generate the perception information. In some embodiments, the first reference signal is a DMRS. In some embodiments, the first reference signal is different from the DMRS and is a reference signal other than the DMRS.

[0486] In some embodiments, the DMRS in the first information is mapped to the first frequency domain resource in the first time domain unit for transmission. In some embodiments, the DMRS is mapped to the entire first frequency domain resource for transmission. In some embodiments, the DMRS is mapped to the second frequency domain resource and the third frequency domain resource in the first time domain unit for transmission, and the third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource. In some embodiments, the sequence corresponding to the DMRS is generated based on the size of the first frequency domain resource. In some embodiments, the DMRS is used to demodulate the information transmitted in the first frequency domain resource and / or the second frequency domain resource. DMRS is also used for perception, and the receiving device can generate perception information based on the DMRS.

[0487] In some embodiments, a first range within the first frequency domain resource is used to transmit DMRSs corresponding to A ports, and a second range within the first frequency domain resource is used to transmit first reference signals corresponding to some of the A ports. The first range is a range corresponding to the second frequency domain resource within the first frequency domain resource, the second range is a range within the first frequency domain resource excluding the first range, and the first reference signal is used for sensing. A is a positive integer.

[0488] In some embodiments, a first range within the first frequency domain resource is used to transmit a DMRS corresponding to A ports, and a second range within the first frequency domain resource is used to transmit a first reference signal corresponding to some of the A ports. The first range is the range corresponding to the second frequency domain resource within the first frequency domain resource, and the second range is the range within the first frequency domain resource excluding the first range. The first reference signal is used for sensing, and the frequency domain density of the first reference signal is lower than that of the DMRS. Alternatively, the frequency domain interval of the physical resources occupied by the first reference signal is greater than the frequency domain interval of the physical resources occupied by the DMRS.

[0489] In some embodiments, DMRS is used for demodulation of a physical channel, and the first reference signal is different from the DMRS. In some embodiments, DMRS is used for demodulation of a physical channel, and the DMRS and the first reference signal are used for sensing. In some embodiments, the first reference signal is DMRS.

[0490] In some embodiments, the DMRS is mapped to the second frequency domain resource within the first time domain unit for transmission. In some embodiments, the sequence corresponding to the DMRS is generated based on the size of the second frequency domain resource. In some embodiments, the DMRS is used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource. In some embodiments, the DMRS is also used for perception. In some embodiments, the first reference signal is mapped to the third frequency domain resource within the first time domain unit for transmission. The first frequency domain resource includes the third frequency domain resource, and the third frequency domain resource does not overlap (is different) from the second frequency domain resource. In some embodiments, the sequence corresponding to the first reference signal is generated based on the size of the third frequency domain resource. The first reference signal is used to generate perception information. In some embodiments, the first reference signal is also used to demodulate information transmitted in the first frequency domain resource and / or the second frequency domain resource.

[0491] In some embodiments, the third frequency domain resources include: a first portion of frequency domain resources and a second portion of frequency domain resources located on both sides of the second frequency domain resources.

[0492] In some embodiments, in the first reference signal sequence generated according to the size of the third frequency domain resources, the first reference signal sequence carried by the first part of the frequency domain resources and the first reference signal sequence carried by the second part of the frequency domain resources are a sequence carried by non-contiguous frequency domain resources.

[0493] In some embodiments, the sequence corresponding to the first reference signal located in the first part of the frequency domain resources is generated according to the size of the first part of the frequency domain resources, and the sequence corresponding to the first reference signal located in the second part of the frequency domain resources is generated according to the size of the second part of the frequency domain resources.

[0494] In some embodiments, the apparatus may further be capable of transmitting a physical channel via a single time domain unit, wherein the frequency domain resources occupied by the data information transmitted by the physical channel in the single time domain unit are smaller than the frequency domain resources occupied by the reference signal used for sensing in the single time domain unit.

[0495] In some embodiments, the above-mentioned perception is used to detect targets and / or environments.

[0496] In some embodiments, the physical channel includes at least one of the following:

[0497] PDSCH;

[0498] PDCCH;

[0499] PUSCH;

[0500] PUCCH.

[0501] It should be noted that the above-mentioned transmission includes sending and / or receiving.

[0502] It should be noted that the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions. In actual applications, 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.

[0503] Regarding the apparatus 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.

[0504] Figure 20 is a structural diagram of a communication device (terminal device and / or network device) provided by an exemplary embodiment of the present application. The communication device 2000 includes: a processor 2001, a receiver 2002, a transmitter 2003, a memory 2004 and a bus 2005.

[0505] The processor 2001 includes one or more processing cores. The processor 2001 executes various functional applications and information processing by running software programs and modules.

[0506] The receiver 2002 and the transmitter 2003 may be implemented as a communication component, which may be a communication chip.

[0507] The memory 2004 is connected to the processor 2001 via the bus 2005. The memory 2004 may be used to store at least one instruction, and the processor 2001 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0508] In addition, the memory 2004 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. The volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random-access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

[0509] When the communication device is implemented as a terminal device, the processor and transceiver in the communication device involved in the embodiments of the present application can be implemented together as a communication chip, or the transceiver can form a communication chip alone. The transmitter in the transceiver performs the sending step performed by the terminal device in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the terminal device in any of the above-mentioned methods, and the processor performs steps other than the sending and receiving steps, which are not further described here.

[0510] When the communication device is implemented as a network device, the processor and transceiver in the communication device involved in the embodiments of the present application can be implemented together as a communication chip, or the transceiver can form a communication chip alone. The transmitter in the transceiver performs the sending step performed by the network device in any of the above-mentioned methods, the receiver in the transceiver performs the receiving step performed by the network device in any of the above-mentioned methods, and the processor performs steps other than the sending and receiving steps, which are not further described here.

[0511] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, the at least one program, the code set or instruction set is loaded and executed by a processor to implement the perception method or physical channel transmission method provided by the above-mentioned various method embodiments.

[0512] In an exemplary embodiment, a chip is also provided, which includes a programmable logic circuit and / or program instructions. When the chip is running on a communication device, it is used to implement the perception method or physical channel transmission method provided by the above-mentioned various method embodiments based on the programmable logic circuit and / or program.

[0513] In an exemplary embodiment, a computer program product is further provided. When the computer program product is executed on a processor of a computer device, the computer device executes the above-mentioned sensing method or physical channel transmission method.

[0514] 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.

[0515] The above description is merely an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, 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 sensing method, characterized in that: The method is applied to a receiving device, and the method comprises: Receiving first information transmitted in a first frequency domain resource in a first time domain unit and second information transmitted in a second frequency domain resource in a second time domain unit, wherein the first frequency domain resource includes the second frequency domain resource; Acquire data information according to the first information and the second information; and generate perception information according to the first information.

2. The method according to claim 1, characterized in that The first information includes a demodulation reference signal DMRS.

3. The method according to claim 2, characterized in that The first information also includes at least one of the following information: Partial data information; Partial transmission block TB information; A first reference signal, where the first reference signal is used to generate the perception information.

4. The method according to claim 2, characterized in that: The DMRS includes a first DMRS, the first DMRS is mapped to the first frequency domain resource in the first time domain unit for transmission, or the first DMRS is mapped to the second frequency domain resource and the third frequency domain resource in the first time domain unit for transmission; The third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

5. The method according to claim 4, characterized in that The sequence corresponding to the first DMRS is generated according to the size of the first frequency domain resources.

6. The method according to claim 4, characterized in that The generating the perception information according to the first information includes: The perception information is generated according to the first DMRS.

7. The method according to claim 2, characterized in that The DMRS includes a second DMRS, and the second DMRS is mapped to the second frequency domain resource in the first time domain unit for transmission.

8. The method according to claim 7, characterized in that The sequence corresponding to the second DMRS is generated according to the size of the second frequency domain resources.

9. The method according to claim 3, characterized in that: The first reference signal is mapped to a third frequency domain resource in the first time domain unit for transmission; The first frequency domain resources include the third frequency domain resources, and the third frequency domain resources do not overlap with the second frequency domain resources.

10. The method according to claim 9, characterized in that The sequence corresponding to the first reference signal is generated according to the size of the third frequency domain resource.

11. The method according to any one of claims 3 to 10, characterized in that: The DMRS includes a second DMRS; and the generating the perception information according to the first information includes: The perception information is generated according to the second DMRS and the first reference signal.

12. The method according to claim 11, characterized in that The second DMRS includes DMRSs corresponding to A ports, the first reference signal includes DMRSs corresponding to some ports among the A ports, and A is a positive integer.

13. The method according to claim 11, characterized in that The frequency domain interval of the physical resources occupied by the first reference signal is greater than the frequency domain interval of the physical resources occupied by the second DMRS; or, The frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

14. The method according to any one of claims 1 to 13, characterized in that: The second information includes at least one of the following information: Data information; Partial data information; TB information; Some TB information.

15. The method according to any one of claims 1 to 14, characterized in that: All or part of the data information is mapped to the frequency domain resources in the second frequency domain resources within the first time domain unit, which are not occupied by the DMRS.

16. The method according to any one of claims 1 to 15, characterized in that: All or part of the data information is mapped to the frequency domain resources in the first frequency domain resources within the first time domain unit, which are not occupied by the reference signal.

17. The method according to any one of claims 1 to 16, characterized in that: The first time domain unit and / or the first frequency domain resource are indicated by a network device.

18. The method according to claim 17, characterized in that The configuration signaling used to configure the first frequency domain resources includes at least one of the following configuration information: A frequency domain resource starting point of the first frequency domain resource; The number of frequency domain resources of the first frequency domain resources; A frequency domain resource end point of the first frequency domain resource; The frequency domain resource interval of the first frequency domain resources.

19. The method according to any one of claims 2 to 18, characterized in that: The first time domain unit is the first symbol occupied by the DMRS, or the first M symbols occupied by the DMRS, where M is a positive integer greater than 1.

20. The method according to any one of claims 1 to 19, characterized in that: A first spreading coefficient corresponding to the first time domain unit and a second spreading coefficient corresponding to the second time domain unit are independently set; The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit.

21. The method according to claim 20, characterized in that The first spreading factor is greater than the second spreading factor.

22. The method according to any one of claims 1 to 21, characterized in that: The second frequency domain resources are configured by a network device.

23. The method according to any one of claims 1 to 22, characterized in that: The perception information is used to detect targets and / or environments.

24. A sensing method, characterized in that: The method is applied to a sending device, and the method includes: Sending first information transmitted in a first frequency domain resource in a first time domain unit and second information transmitted in a second frequency domain resource in a second time domain unit, wherein the first frequency domain resource includes the second frequency domain resource; The first information and the second information are used to obtain data information, and the first information is used to generate perception information.

25. The method according to claim 24, characterized in that The first information includes DMRS.

26. The method according to claim 25, characterized in that The first information also includes at least one of the following information: Partial data information; Some TB information; A first reference signal, where the first reference signal is used to generate the perception information.

27. The method according to claim 25, characterized in that The DMRS includes a first DMRS, the first DMRS is mapped to the first frequency domain resource in the first time domain unit for transmission, or the first DMRS is mapped to the second frequency domain resource and the third frequency domain resource in the first time domain unit for transmission; The third frequency domain resource is a frequency domain resource on the first frequency domain resource that does not overlap with the second frequency domain resource.

28. The method according to claim 27, characterized in that The sequence corresponding to the first DMRS is generated according to the size of the first frequency domain resources.

29. The method according to claim 27, characterized in that The first DMRS is used to generate the perception information.

30. The method according to claim 25, characterized in that The DMRS includes a second DMRS, and the second DMRS is mapped to the second frequency domain resource in the first time domain unit for transmission.

31. The method according to claim 30, characterized in that The sequence corresponding to the second DMRS is generated according to the size of the second frequency domain resources.

32. The method according to claim 26, characterized in that The first reference signal is mapped to a third frequency domain resource in the first time domain unit for transmission; The first frequency domain resources include the third frequency domain resources, and the third frequency domain resources do not overlap with the second frequency domain resources.

33. The method according to claim 32, characterized in that The sequence corresponding to the first reference signal is generated according to the size of the third frequency domain resource.

34. The method according to any one of claims 26 to 33, characterized in that The DMRS includes a second DMRS; the second DMRS and the first reference signal are used to generate the perception information.

35. The method according to claim 34, characterized in that The second DMRS includes DMRSs corresponding to A ports, the first reference signal includes DMRSs corresponding to some ports among the A ports, and A is a positive integer.

36. The method according to claim 34, characterized in that The frequency domain interval of the physical resources occupied by the first reference signal is greater than the frequency domain interval of the physical resources occupied by the second DMRS; or, The frequency domain density of the first reference signal is less than the frequency domain density of the second DMRS.

37. The method according to any one of claims 24 to 36, characterized in that: The second information includes at least one of the following information: Data information; Partial data information; TB information; Some TB information.

38. The method according to any one of claims 24 to 37, characterized in that All or part of the data information is mapped to the frequency domain resources in the second frequency domain resources within the first time domain unit, which are not occupied by the DMRS.

39. The method according to any one of claims 24 to 38, characterized in that All or part of the data information is mapped to the frequency domain resources in the first frequency domain resources within the first time domain unit, which are not occupied by the reference signal.

40. The method according to any one of claims 24 to 39, characterized in that: The first time domain unit and the first frequency domain resource are indicated by a network device.

41. The method according to claim 40, characterized in that The configuration signaling used to configure the first frequency domain resources includes at least one of the following configuration information: A frequency domain resource starting point of the first frequency domain resource; The number of frequency domain resources of the first frequency domain resources; A frequency domain resource end point of the first frequency domain resource; The frequency domain resource interval of the first frequency domain resources.

42. The method according to any one of claims 25 to 41, characterized in that The first time domain unit is the first symbol occupied by the DMRS, or the first M symbols occupied by the DMRS, where M is a positive integer greater than 1.

43. The method according to any one of claims 24 to 42, characterized in that A first spreading coefficient corresponding to the first time domain unit and a second spreading coefficient corresponding to the second time domain unit are independently set; The first spreading coefficient is used to spread the information transmitted by the first time domain unit, and the second spreading coefficient is used to spread the information transmitted by the second time domain unit.

44. The method according to claim 43, characterized in that The first spreading factor is greater than the second spreading factor.

45. The method according to any one of claims 24 to 44, characterized in that The second frequency domain resources are configured by a network device.

46. ​​The method according to any one of claims 24 to 45, characterized in that The perception information is used to detect targets and / or environments.

47. A physical channel transmission method, characterized in that: The method comprises: Transmitting the physical channel through N time domain units, the N time domain units including a first time domain unit and a second time domain unit; The first frequency domain resources occupied by the physical channel in the first time domain unit are greater than the second frequency domain resources occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception.

48. A sensing device, characterized in that: The device comprises: A receiving module, configured to receive first information transmitted in a first frequency domain resource in a first time domain unit, and second information transmitted in a second frequency domain resource in a second time domain unit, wherein the first frequency domain resource includes the second frequency domain resource; An acquisition module is used to acquire data information according to the first information and the second information; a generation module is used to generate perception information according to the first information.

49. A sensing device, characterized in that: The device comprises: A sending module, configured to send first information transmitted in a first frequency domain resource in a first time domain unit, and second information transmitted in a second frequency domain resource in a second time domain unit, wherein the first frequency domain resource includes the second frequency domain resource; The first information and the second information are used to obtain data information, and the first information is used to generate perception information.

50. A transmission device for a physical channel, characterized in that: The device comprises: A transmission module, configured to transmit the physical channel through N time domain units, wherein the N time domain units include a first time domain unit and a second time domain unit; The first frequency domain resources occupied by the physical channel in the first time domain unit are greater than the second frequency domain resources occupied by the physical channel in the second time domain unit, and the first information transmitted by the physical channel in the first time domain unit is used for perception.

51. A terminal device, characterized in that: The device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The terminal device is configured to load the executable instructions so that the terminal device implements the perception method as described in any one of claims 1 to 46, or the physical channel transmission method as described in claim 47.

52. A network device, characterized in that: The device comprises: processor; a transceiver connected to the processor; a memory for storing executable instructions for the processor; The network device is configured to load the executable instructions so that the network device implements the perception method as described in any one of claims 1 to 46, or the physical channel transmission method as described in claim 47.

53. A computer-readable storage medium, characterized in that: The readable storage medium stores executable instructions, which are loaded and executed by a processor to implement the perception method as described in any one of claims 1 to 46, or the physical channel transmission method as described in claim 47.

54. A chip, characterized in that: The chip includes a programmable logic circuit or a program, and the chip is used to implement the perception method as described in any one of claims 1 to 46, or the physical channel transmission method as described in claim 47 based on the programmable logic circuit or the program.

55. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the perception method as described in any one of claims 1 to 46, or the physical channel transmission method as described in claim 47.

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