Communication method and apparatus

Abstract

A communication method and apparatus. The method can be suitable for sensing or integrated sensing and communication scenarios, enabling flexible selection of power allocation granularity and improving the flexibility and rationality of power allocation, so that sensing performance and / or communication performance are improved on the basis of reasonable power allocation. The method comprises: a RAN node determines a power allocation granularity corresponding to a first signal and indicates same to a terminal. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities comprise at least one of a subcarrier, a subcarrier group, a resource block, or a resource block group. The first signal may be a reference signal, or may be a signal carried in a data channel or a control channel. On the basis of the indication from the RAN node, the terminal acquires the power allocation granularity corresponding to the first signal, and sends or receives the first signal on the basis of the power allocation granularity.

Description

Communication method and apparatus

[0001] The present application claims priority from the Chinese patent application No. 202410474296.4 filed on April 18, 2024, and entitled "Communication method and apparatus", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of communication, in particular to a communication method and apparatus. BACKGROUND

[0003] In the process of the evolution of the 5th generation (5G) mobile communication system to 5G-advanced (5G-A) technology, communication and perception integrated technology is considered as one of the key technologies that can expand the business capabilities of mobile communication networks. The core idea of this technology is to add perception capabilities to the mobile communication network to build the ability to detect and image targets, so that the two capabilities of communication and perception can coexist in harmony, even mutually beneficial.

[0004] The technical principle of perception is different from that of communication. In communication, the sending end modulates information on radio waves and sends it to the receiving end, and the receiving end demodulates the signal carried on the radio waves to obtain information. In perception, the sending end sends radio waves in a specific direction, and when the radio waves irradiate the target surface, they will form reflected waves, and the receiving end receives the reflected waves and processes them to obtain information such as the position, speed, and type of the target.

[0005] Currently, when the sending end sends signals for perception, it usually performs frequency domain power allocation with a fixed frequency domain resource granularity, resulting in poor flexibility of power allocation. SUMMARY

[0006] The present application provides a communication method and apparatus, which can flexibly select the power allocation granularity and improve the flexibility of power allocation.

[0007] In a first aspect, a communication method is provided. The method can be performed by a RAN node, or by a component of the RAN node, e.g., a processor, a chip, or a chip system of the RAN node, or by a logic module or software that can implement all or part of the functions of the RAN node. The method comprises determining a power allocation granularity corresponding to a first signal, and transmitting indication information indicating the power allocation granularity corresponding to the first signal. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities comprise at least one of a plurality of power allocation granularities including a subcarrier, a group of subcarriers, a resource block, or a group of resource blocks. The first signal is a reference signal, or a signal carried in a data channel or a control channel.

[0008] Based on the scheme, when performing signal transmission, the RAN node can indicate one of the at least two power allocation granularities, so that the transceiver can determine the power corresponding to each subcarrier in the bandwidth occupied by the signal based on the power allocation granularity indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each subcarrier. Since the present application provides multiple power allocation granularities, the RAN node can flexibly select a power allocation granularity suitable for current signal transmission, thereby improving the flexibility and rationality of power allocation, and improving the sensing performance and / or communication performance based on reasonable power allocation.

[0009] In a possible design, the method further comprises receiving or transmitting the first signal according to the power allocation granularity corresponding to the first signal.

[0010] In a possible design, the method further comprises transmitting second indication information indicating a power allocation manner corresponding to the first signal. The power allocation manner is one of at least two power allocation manners. The at least two power allocation manners comprise at least one of a first power allocation manner, a second power allocation manner, a third power allocation manner, a fourth power allocation manner, a fifth power allocation manner, or a sixth power allocation manner. The power allocation manner is used to determine the power corresponding to a frequency domain resource group in the bandwidth occupied by the first signal. The size of the frequency domain resource group is the size of the power allocation granularity corresponding to the first signal.

[0011] Based on the possible design, when performing signal transmission, the RAN node can indicate one of the at least two power allocation manners, so that the transceiver can determine the power corresponding to each frequency domain resource group based on the power allocation manner indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each frequency domain resource group. Since the present application provides multiple power allocation manners, the RAN node can flexibly select a power allocation manner suitable for current signal transmission, thereby improving the flexibility and rationality of power allocation, and improving the sensing performance and / or communication performance based on reasonable power allocation.

[0012] In a second aspect, a communication method is provided. The method can be performed by a terminal, or by a component of the terminal, such as a processor, a chip, or a chip system of the terminal, or by a logic module or software that can implement all or part of the functions of the terminal. The method includes receiving indication information indicating a power allocation granularity corresponding to a first signal, and transmitting or receiving the first signal according to the indication information. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities, and the at least two power allocation granularities include at least one of a plurality of subcarriers, a plurality of subcarrier groups, a plurality of resource blocks, or a plurality of resource block groups. The first signal is a reference signal or a signal carried in a data channel or a control channel. The technical effects brought by the second aspect can refer to the technical effects brought by the first aspect, which will not be repeated here.

[0013] In a possible design, transmitting or receiving the first signal according to the indication information includes determining the power allocation granularity corresponding to the first signal according to the indication information, and transmitting or receiving the first signal according to the power allocation granularity corresponding to the first signal.

[0014] In a possible design, the method further includes receiving second indication information indicating indication information of a power allocation manner corresponding to the first signal. The power allocation manner is one of at least two power allocation manners. The at least two power allocation manners include at least one of a first power allocation manner, a second power allocation manner, a third power allocation manner, a fourth power allocation manner, a fifth power allocation manner, or a sixth power allocation manner. The power allocation manner is used to determine the power corresponding to a frequency domain resource group in a bandwidth occupied by the first signal. The size of the frequency domain resource group is the size of the power allocation granularity corresponding to the first signal.

[0015] In combination with the first aspect or the second aspect, in a possible design, the indication information indicates the power allocation granularity corresponding to the first signal, including that the indication information indicates the type of the power allocation granularity corresponding to the first signal, and / or the indication information indicates the value of the power allocation granularity corresponding to the first signal.

[0016] In combination with the first aspect or the second aspect, in a possible design, the indication information is carried in a first field. When the first field is set to a first value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or when the first field is set to a second value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or when the first field is set to a third value, the type of the power allocation granularity corresponding to the first signal is a resource block; or when the first field is set to a fourth value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

[0017] In a possible design of the first aspect or the second aspect, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates a number of frequency domain resource units occupied by the first signal, and the number of frequency domain resource units occupied by the first signal is associated with the power allocation granularity corresponding to the first signal.

[0018] Based on this possible design, the power allocation granularity corresponding to the first signal can be determined based on the number of frequency domain resource units occupied by the first signal. Since the RAN node needs to schedule the frequency domain resource units to transmit the first signal when the first signal is transmitted, the scheduling information of the first signal can be multiplexed to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0019] In a possible design of the first aspect or the second aspect, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates a signal type of the first signal, and the signal type of the first signal is associated with the power allocation granularity corresponding to the first signal. The signal type of the first signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

[0020] Based on this possible design, the power allocation granularity corresponding to the first signal can be determined based on the signal type of the first signal. Since the RAN node can indicate the signal type of the first signal when scheduling transmission of the first signal, the scheduling information of the first signal can be multiplexed to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0021] In a possible design of the first aspect or the second aspect, when the frequency domain resource unit is a resource block, in a case where the number of resource blocks occupied by the first signal is greater than or equal to a fifth value, the power allocation granularity corresponding to the first signal is 2 resource blocks; in a case where the number of resource blocks occupied by the first signal is less than the fifth value and greater than or equal to a sixth value, the power allocation granularity corresponding to the first signal is 1 resource block; in a case where the number of resource blocks occupied by the first signal is less than the sixth value and greater than or equal to a seventh value, the power allocation granularity corresponding to the first signal is 0.5 resource block; and in a case where the number of resource blocks occupied by the first signal is less than the seventh value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0022] With reference to the first aspect or the second aspect, in a possible design, in the case that the signal type of the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; in the case that the signal type of the first signal is a reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; in the case that the signal type of the first signal is a reference signal and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

[0023] With reference to the first aspect or the second aspect, in a possible design, the first power allocation manner includes: from an edge frequency domain resource group of the first bandwidth to a center frequency domain resource group of the first bandwidth, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the frequency domain resource groups to which power is allocated is the same; or the second power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups increases in turn, and the power corresponding to the first frequency domain resource group is the first power; or the third power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups increases in turn, and the power corresponding to the first frequency domain resource group is the second power; or the fourth power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the second frequency domain resource group is the third power; or the fifth power allocation manner includes: from the edge frequency domain resource group to the center frequency domain resource group, the power corresponding to the frequency domain resource groups decreases in turn, and the power corresponding to the second frequency domain resource group is the fourth power; or the sixth power allocation manner includes: the power corresponding to the frequency domain resource groups is related to the channel quality corresponding to the frequency domain resource groups. The first frequency domain resource group and the second frequency domain resource group are frequency domain resource groups in the first bandwidth, the first power and the second power are different, and the third power and the fourth power are different.

[0024] With reference to the first aspect or the second aspect, in a possible design, the first power allocation manner further includes: there is a frequency domain resource group in the first bandwidth to which no power is allocated.

[0025] Based on the possible design, multiple power allocation manners can be provided, and thus the RAN node can flexibly select a power allocation manner suitable for current signal transmission according to characteristics of different power allocation manners, thereby improving flexibility and rationality of power allocation. For example, based on the first power allocation manner, power is preferentially allocated to the edge frequency domain resource group, which can maximize sensing accuracy and sensing resolution. Based on the second power allocation manner, sensing false alarm rate can be reduced. Based on the third power allocation manner, a better compromise between sensing accuracy / sensing resolution and false alarm rate can be achieved, that is, while ensuring sensing accuracy / sensing resolution, a lower false alarm rate can be maintained. Based on the fourth power allocation manner, a better compromise between sensing accuracy / sensing resolution and spectrum efficiency can be achieved, that is, while ensuring sensing accuracy / sensing resolution, spectrum efficiency can be ensured. Based on the fifth power allocation manner, a better compromise between sensing accuracy / sensing resolution, false alarm rate and spectrum efficiency can be achieved, that is, while ensuring sensing accuracy / sensing resolution, a lower false alarm rate and higher spectrum efficiency can be ensured. Based on the sixth power allocation manner, higher power can be allocated to the frequency domain resource group with better channel quality, thereby improving spectrum efficiency.

[0026] With reference to the first aspect or the second aspect, in a possible design, when the first signal is a reference signal for sensing, the at least two power allocation manners include at least one of a first power allocation manner, a second power allocation manner or a third power allocation manner.

[0027] Based on the possible design, when the first power allocation manner is a high-accuracy / high-resolution power allocation manner, the second power allocation manner is a low-false-alarm-rate power allocation manner, and the third power allocation manner is a power allocation manner for compromise between sensing accuracy / resolution and false alarm rate, the three power allocation manners can all ensure better sensing performance. Therefore, when the first signal is a reference signal for sensing, one of the three power allocation manners is used for power allocation, and sensing performance can be ensured.

[0028] With reference to the first aspect or the second aspect, in a possible design, when the first signal is carried in a data channel or a control channel, the at least two power allocation manners include at least one of a fourth power allocation manner, a fifth power allocation manner or a sixth power allocation manner.

[0029] Based on the possible design, in a case that the fourth power allocation manner is a power allocation manner for compromising sensing accuracy / resolution and spectrum efficiency, the fifth power allocation manner is a power allocation manner for compromising sensing accuracy / resolution, false alarm rate and spectrum efficiency, and the sixth power allocation manner is a power allocation manner for high spectrum efficiency, the fourth power allocation manner and the fifth power allocation manner can guarantee better sensing performance and communication performance, and the sixth power allocation manner can guarantee better communication performance. Therefore, in a case that the first signal is carried on the data channel or the control channel, the first signal can be used for sensing and communication, or can be used for communication, so that power allocation is performed by using one of the three power allocation manners, the sensing performance and the communication performance can be guaranteed, or the communication performance can be guaranteed.

[0030] With reference to the first aspect or the second aspect, in a possible design, the power allocation manner corresponds to at least one power allocation coefficient set, and the power allocation coefficient set includes a plurality of power allocation coefficients, where the power allocation coefficients are used to determine the power corresponding to the frequency domain resource set in the first bandwidth.

[0031] With reference to the first aspect or the second aspect, in a possible design, the second indication information indicates the power allocation manner corresponding to the first signal, including: the second indication information indicates an index of the power allocation manner corresponding to the first signal; or the second indication information indicates a power allocation coefficient set corresponding to the power allocation manner corresponding to the first signal.

[0032] The third aspect provides a communication apparatus for implementing various methods. The communication apparatus includes modules, units or means corresponding to the methods, where the modules, units or means can be implemented by hardware, software or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the functions.

[0033] In some possible designs, the communication apparatus can include a processing module and a transceiver module. The processing module can be used to implement the processing functions in any of the aspects and any possible implementation manner thereof. The transceiver module can include a receiving module and a sending module, which are used to implement the receiving function and the sending function in any of the aspects and any possible implementation manner thereof.

[0034] In some possible designs, the transceiver module can be composed of a transceiver circuit, a transceiver, a transceiver or a communication interface.

[0035] The fourth aspect provides a communication apparatus, including: a processor and a memory; the memory is used to store computer instructions, when the processor executes the instructions, to make the communication apparatus execute the method in any of the aspects.

[0036] In a fifth aspect, a communication apparatus is provided, which comprises: a processor and a communication interface; the communication interface is configured to communicate with a module outside the communication apparatus; the processor is configured to execute computer programs or instructions to enable the communication apparatus to perform the method in any of the above aspects.

[0037] In a sixth aspect, a communication apparatus is provided, which comprises: at least one processor; the processor is configured to execute computer programs or instructions stored in a memory to enable the communication apparatus to perform the method in any of the above aspects. The memory can be coupled with the processor, or can be independent of the processor.

[0038] In a seventh aspect, a communication apparatus (e.g., the communication apparatus can be a chip or a chip system) is provided, which comprises a processor configured to implement the functions involved in any of the first aspect or the second aspect.

[0039] In some possible designs, the communication apparatus comprises a memory configured to store necessary program instructions and data.

[0040] In some possible designs, when the apparatus is a chip system, the apparatus can be composed of a chip, or can comprise a chip and other discrete devices.

[0041] The communication apparatus in the third aspect to the seventh aspect can be the RAN node in the first aspect, or an apparatus (e.g., a chip or a chip system) included in the RAN node; or the communication apparatus in the third aspect to the seventh aspect can be the terminal in the second aspect, or an apparatus (e.g., a chip or a chip system) included in the terminal.

[0042] In an eighth aspect, a communication apparatus is provided, which can be the RAN node, or a module or unit (e.g., a chip, or a chip system, or a circuit) corresponding to the RAN node performing the method / operation / step / action described in the first aspect, or a module or unit that can be used in matching with the RAN node; or the communication apparatus can be the terminal, or a module or unit (e.g., a chip, or a chip system, or a circuit) corresponding to the terminal performing the method / operation / step / action described in the second aspect, or a module or unit that can be used in matching with the terminal.

[0043] It can be understood that, when the communication apparatus in any of the third aspect to the eighth aspect is a chip, the sending action / function of the communication apparatus can be understood as outputting information, and the receiving action / function of the communication apparatus can be understood as inputting information.

[0044] In a ninth aspect, a computer-readable storage medium is provided, which stores a computer program or instructions, when running on a communication device, causes the communication device to perform the method in any of the first aspect or the second aspect.

[0045] In a tenth aspect, a computer program product is provided, which contains instructions, when running on a communication device, causes the communication device to perform the method in any of the first aspect or the second aspect.

[0046] In an eleventh aspect, a communication system is provided, which can include a RAN node and a terminal. The RAN node is configured to implement the method in the first aspect or any of its design options, and the terminal is configured to implement the method in the second aspect or any of its design options.

[0047] The technical effects brought by the third aspect to the eleventh aspect and any of their design options can refer to the technical effects brought by the first aspect or the second aspect and any of their design options, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0048] FIG. 1 is a schematic diagram of a power allocation granularity provided by the present application;

[0049] FIG. 2 is a schematic diagram of a perception-communication integrated scenario provided by the present application;

[0050] FIG. 3 is a schematic diagram of a perception or communication perception integrated scenario provided by the present application;

[0051] FIG. 4 is a schematic diagram of another perception or communication perception integrated scenario provided by the present application;

[0052] FIG. 5 is a schematic diagram of still another perception or communication perception integrated scenario provided by the present application;

[0053] FIG. 6 is a schematic diagram of a communication method provided by the present application;

[0054] FIG. 7 is a schematic diagram of another power allocation granularity provided by the present application;

[0055] FIG. 8 is a schematic diagram of a power allocation mode with high perception accuracy / resolution provided by the present application;

[0056] FIG. 9 is a schematic diagram of a power allocation mode with low false alarm rate provided by the present application;

[0057] FIG. 10 is a schematic diagram of a power allocation mode with compromise between perception accuracy / resolution and spectrum efficiency provided by the present application;

[0058] FIG. 11 is a schematic diagram of a power allocation mode with high spectrum efficiency provided by the present application;

[0059] FIG. 12 is a structural schematic diagram of a communication apparatus provided by the present application;

[0060] FIG. 13 is a structural schematic diagram of another communication apparatus provided by the present application;

[0061] FIG. 14 is a structural schematic diagram of still another communication apparatus provided by the present application. DETAILED DESCRIPTION

[0062] In the description of the present application, unless otherwise specified, “ / ” represents that the objects before and after the “ / ” are in an “or” relationship, for example, A / B can represent A or B; “and / or” in the present application is only a description of the relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A exists alone, A and B exist together, and B exists alone, where A and B can be singular or plural.

[0063] In the description of the present application, unless otherwise specified, “multiple” means two or more than two. “At least one of the following” or the like means any combination of the items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple.

[0064] In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the same items or similar items with basically the same functions and effects are distinguished by using “first”, “second”, etc. The skilled in the art can understand that “first”, “second”, etc. do not limit the quantity and execution order, and “first”, “second”, etc. also do not necessarily mean different.

[0065] In the embodiments of the present application, the words “exemplary” or “for example” are used to mean serving as an example, instance, or illustration. Any embodiment or design scheme described as “exemplary” or “for example” in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Rather, the use of “exemplary” or “for example” is intended to present the relevant concept in a specific manner, which is convenient for understanding.

[0066] It can be understood that the "embodiments" mentioned in the specification throughout mean that the specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. It can be understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0067] It can be understood that in the present application, "…", "if" and "when" all refer to the corresponding processing under certain objective conditions, not limited by time, and do not require judgment actions when implementing, nor mean that there are other limitations.

[0068] It can be understood that some optional features in the embodiments of the present application can be implemented independently in some scenarios without relying on other features, such as the scheme currently based on, to solve the corresponding technical problems and achieve the corresponding effects. In some scenarios, it can also be combined with other features according to the needs. Correspondingly, the devices given in the embodiments of the present application can also realize these features or functions, which will not be described here.

[0069] In the present application, except for special description, the same or similar parts of each embodiment can be mutually referred. In various embodiments of the present application, if there is no special description and no logical conflict, the terms and / or descriptions of different embodiments are consistent and can be mutually referred, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship. The implementation modes of the present application described below do not constitute a limitation on the protection scope of the present application.

[0070] In a wireless communication system, the sending end modulates information on radio waves and sends it to the receiving end. The receiving end demodulates the signal carried on the radio wave to obtain the information. Generally, according to the different types of sending end and receiving end, the communication can be divided into different types. For example, the information sent by the network device to the terminal device is called downlink communication, and the information sent by the terminal device to the network device is called uplink communication.

[0071] There can be multiple duplex modes in a wireless communication system. For example, in a long term evolution (LTE), long term evolution advanced (LTE-A) communication system and a new radio (NR) system, duplex modes can be divided into a frequency division duplex (FDD) mode and a time division duplex (TDD) mode. For a wireless communication system operating in a TDD mode, a downlink carrier and an uplink carrier are carriers of the same carrier frequency; for a wireless communication system operating in an FDD mode, a downlink carrier and an uplink carrier can be carriers of different carrier frequencies.

[0072] In addition, a multiple access mode commonly used by a wireless communication system is an orthogonal frequency division multiplexing access (OFDMA) mode. The main feature is to divide transmission resources into mutually orthogonal resource elements (REs), and signals sent by a sending end are transmitted on the REs to a receiving end. Since different REs are mutually orthogonal, the receiving end can separately receive signals on each RE.

[0073] The technical principle of sensing is different from that of communication. Sensing refers to detecting parameters of a target in a physical environment, such as a position of the target and a speed of the target. In sensing, a sending end sends a radio wave in a specific direction, and a reflected wave is formed when the radio wave irradiates a target surface. A receiving end receives the reflected wave and processes it to obtain information such as a position, a speed, and a type of the target. Sensing can also be referred to as detection.

[0074] Generally, sensing modes can be divided into a self-sending and self-receiving sensing mode and a self-sending and other-receiving sensing mode. In the self-sending and self-receiving sensing mode, a sending end and a receiving end of a sensing signal are the same device, that is, a sensing station both sends a sensing signal and receives a signal reflected by the sensing signal on a target surface. In the self-sending and other-receiving sensing mode, a sending end and a receiving end of a sensing signal are different devices, that is, a sensing station A sends a sensing signal, and a signal reflected by the sensing signal on a target surface is received by a sensing station B.

[0075] Future business requirements and technology development trends have given rise to the integration of sensing and communication. With the integration of sensing and communication, future base stations and terminals will have both communication and sensing capabilities. For example, future base stations will have the ability to monitor the status of targets (such as low-altitude flying objects, traffic flows, and hotspots) within the coverage area, detect, locate, and identify targets. In addition, they can also have the ability to measure the real-time state of the natural environment, weather, and other conditions in the coverage area.

[0076] Future terminals will evolve into intelligent agents, and unmanned vehicles, drones, robots, and other intelligent devices will have increasingly enhanced capabilities. Intelligent agents may need to identify human poses, actions, and expressions to enhance human-machine interaction, and also need to identify the action states between multiple intelligent agents to improve intelligent collaboration. Further, intelligent agents may need to identify attributes inside the human body, inside products, and inside articles to provide remote, AI-based unmanned physical examination, quality inspection, and security inspection services. These services further drive the integration of intelligent agent sensing and communication, not only improving the information interaction capabilities between intelligent agents and between intelligent agents and systems, but also reducing the size, power consumption, and cost of intelligent agent hardware devices, thereby promoting the popularization of new services.

[0077] For future 6th generation (6G) wireless networks, communication capabilities and sensing capabilities will coexist and evolve into an integrated sensing and communication (ISAC) technology direction, giving 6G networks the ability to sense the physical world at all times and everywhere. This not only fully meets the needs of multi-dimensional sensory interconnection, but also effectively supports the wide-area expansion of communication capabilities, opening up new application spaces beyond traditional mobile communication networks.

[0078] For example, ISAC is a typical architecture for the integration of sensing and communication. ISAC provides high-quality communication and high-precision sensing functions by sharing software and hardware resources in the same system, reducing costs and improving system performance. The communication function can be understood as traditional data transmission, and the sensing function includes ranging, speed measurement, angle measurement, imaging, detection, and other functions.

[0079] Currently, when a transmitting end transmits a signal for sensing, the transmitting end usually performs power allocation in the frequency domain with a fixed frequency domain resource granularity, such as a resource group (RG). One RG is composed of at least two resource blocks (RBs). Power allocation with an RG as a granularity can be understood as that the power corresponding to the frequency domain resources in the same RG is equal, and the power on the frequency domain corresponding to different RGs is independently allocated. For example, as shown in FIG. 1, with an RG composed of two RBs, the horizontal axis represents power, and the vertical axis represents RB. The power corresponding to the RBs in the same RG is the same, and the power corresponding to the RBs in different RGs is not the same.

[0080] However, the above power allocation manner with an RG as a granularity can cause sensing performance to decrease. For example, when the signal for sensing occupies a small bandwidth, power allocation with a larger RG as a granularity can cause the power on the frequency domain resources occupied by the signal to be all the same, thereby causing sensing performance to be impaired.

[0081] Based on this, the present application provides a communication method. In the method, when transmitting a signal, a network can indicate one power allocation granularity from at least two power allocation granularities, so that a transmitting and receiving end can perform power allocation and transmit and receive a signal based on the power allocation granularity indicated by the network. Since multiple power allocation granularities are provided, the network can flexibly select a power allocation granularity suitable for current signal transmission, improve the flexibility and rationality of power allocation, and thereby improve sensing performance based on reasonable power allocation.

[0082] The technical solutions of the embodiments of the present application can be applied to various communication systems. The communication system can be a third generation partnership project (3GPP) communication system, for example, a long term evolution (LTE) system, a 4th generation (4G) system such as an LTE system, a new radio (NR) system, a 5G system such as an NR system, a system in which an LTE and a 5G are hybrid networked, a non-terrestrial network (NTN), or other next-generation communication systems such as a 6G communication system. The communication system can also be a non-3GPP communication system, which is not limited.

[0083] The technical solutions of the embodiments of the present application can be applied to various scenarios, such as a terminal and network communication scenario, or a device-to-device (D2D), machine to machine (M2M), vehicle to everything (V2X) communication, and other terminal and terminal direct communication scenarios, or a perception scenario or a communication and perception integrated scenario.

[0084] In some possible implementations, in various scenarios where the present application is applicable, a perception transmitter transmits a signal for perception, the signal generates a return signal through target reflection, a receiver receives the return signal, and then perceives the position, speed, and other information of the target. The target can also be referred to as a perceived target.

[0085] For example, after the perception receiver receives the return signal, a receive sequence is obtained based on the return signal, a correlation operation is performed on the receive sequence and a local sequence, and the position, speed, and other information of the target are perceived according to the result of the correlation operation. The local sequence is a sequence used to generate a transmitted signal. The local sequence can be indicated by the perception transmitter to the perception receiver.

[0086] The correlation operation can be understood as a processing process between two sequences, including multiplication and addition operations between different elements of the two sequences. The correlation operation includes autocorrelation operation and cross-correlation operation. In addition, in the case of considering Doppler frequency offset, the autocorrelation of the sequence can also be referred to as self-fuzziness, and the cross-correlation between the sequences can also be referred to as cross-fuzziness. The correlation operation result of the sequence can be understood as a fuzziness function, and perception can be performed based on the correlation information of the main lobe and the side lobe of the fuzziness function.

[0087] As a possible implementation, the signal can be used only for perception, for example, the signal can be a perception dedicated reference signal. At this time, the signal can also be referred to as a perception signal, a detection signal, a linear frequency modulation signal, a radar signal, a radar perception signal, a radar detection signal, or an environmental perception signal, etc.

[0088] The sensing signal can be an orthogonal frequency division multiplexing (OFDM) signal modulated with a specific sequence on subcarriers. The specific sequence can be any one of a Zadoff-Chu sequence (ZC sequence), a pseudo-random sequence, a predefined sequence, and the like. The pseudo-random sequence can include any one of a maximum length linear feedback shift register sequence (m-sequence), a Gold sequence, and the like. The predefined sequence can be a random data symbol, for example, a random data symbol modulated by quadrature phase shift keying (QPSK), 16 quadrature amplitude modulation (QAM), or the like.

[0089] As another possible implementation, the signal can be used for both sensing and communication, i.e., the signal is used for both communication and sensing. In this case, the signal can also be referred to as a communication-sensing fusion signal. The signal used for communication can be understood as carrying communication data or a communication reference signal sequence that needs to be transmitted between communication devices. For example, the signal can be a reference signal in communication (also referred to as a communication reference signal or a communication reference signal sequence), or a signal carried in a data channel or a control channel (also referred to as communication data).

[0090] The data channel can include, but is not limited to, a physical downlink shared channel (PDSCH), a physical uplink shared channel (PUSCH), and the like. The control channel can include, but is not limited to, a physical downlink control channel (PDCCH), a physical uplink control channel (PUCCH), and the like.

[0091] As an example, as shown in FIG. 2, a sensing-communication integrated scenario applicable to the present application is shown. In this scenario, a radio access network (RAN) node and a terminal can have both communication and sensing functions. The transmitting end of the signal used for sensing can be a terminal or a RAN node. The sensed target can include, but is not limited to, mobile targets such as vehicles, low-altitude drones, pedestrians, and the like, and can also include stationary objects in the environment, such as buildings, the ground, and the like.

[0092] Optionally, according to the perception mode, the perception scene or the communication-perception integrated scene can be divided into six scenes as shown in FIG. 3 to FIG. 5, wherein FIG. 3 to FIG. 5 take the perceived target as a vehicle for example, and of course the target can also be other objects, which are not limited.

[0093] Referring to FIG. 3, in scene 1, the sending end and the receiving end of the signal are the same radio access network (RAN) node; in scene 2, the sending end and the receiving end of the signal are the same terminal. Exemplarily, in scene 1 and scene 2, the signal can be a perception signal.

[0094] Referring to FIG. 4, in scene 3, the sending end of the signal is RAN node A, and the receiving end is another RAN node B. It is worth noting that the target in the environment and the RAN node B can be the same device or different devices. For example, when the target in the environment and the RAN node B are the same device, the signal sent by the RAN node A can be a perception fusion signal, that is, the RAN node A sends the perception fusion signal for perception, and the perception fusion signal also carries the communication data or the communication reference sequence that the RAN node A needs to transmit to the RAN node B. When the target in the environment and the RAN node B are not the same device, the signal sent by the RAN node A can be a perception signal.

[0095] In scene 4, the sending end of the signal is terminal A, and the receiving end is another terminal B. It is worth noting that the target in the environment and the terminal B can be the same device or different devices. For example, when the target in the environment and the terminal B are the same device, the signal sent by the terminal A can be a perception fusion signal, that is, the terminal A sends the perception fusion signal for perception, and the perception fusion signal also carries the communication data or the communication reference sequence that the terminal A needs to transmit to the terminal B. When the target in the environment and the terminal B are not the same device, the signal sent by the terminal A can be a perception signal. In addition, the terminal A can also send a communication signal to communicate with the terminal B by using frequency division multiplexing or space division multiplexing and the like. The communication signal can refer to the signal transmitted between the communication devices for communication.

[0096] Referring to FIG. 5, in scenario 5, the signal is transmitted by a RAN node and received by a terminal. It is worth noting that the target and the terminal in the environment can be the same device or different devices. For example, when the target and the terminal in the environment are the same device, the signal transmitted by the RAN node can be a sense-and-communicate fusion signal, i.e., the RAN node transmits the sense-and-communicate fusion signal for sensing, and the sense-and-communicate fusion signal also carries communication data or a communication reference sequence that the RAN node needs to transmit to the terminal. When the target and the RAN node in the environment are not the same device, the signal transmitted by the RAN node can be a sensing signal. In addition, the RAN node can also simultaneously transmit a communication signal using frequency division multiplexing or space division multiplexing, and communicate with the terminal.

[0097] In scenario 6, the signal is transmitted by a terminal and received by a RAN node. It is worth noting that the target and the RAN node in the environment can be the same device or different devices. For example, when the target and the RAN node in the environment are the same device, the signal transmitted by the terminal can be a sense-and-communicate fusion signal, i.e., the terminal transmits the sense-and-communicate fusion signal for sensing, and the sense-and-communicate fusion signal also carries communication data or a communication reference sequence that the terminal needs to transmit to the RAN node. When the target and the RAN node in the environment are not the same device, the signal transmitted by the terminal can be a sensing signal. In addition, the terminal can also simultaneously transmit a communication signal using frequency division multiplexing or space division multiplexing, and communicate with the RAN node.

[0098] In a possible implementation, the RAN node can be deployed in a RAN. The RAN can be a 3GPP related cellular system, such as a 4G, 5G mobile communication system, or a future-oriented evolved system (e.g., a 6G mobile communication system). The RAN can also be an open access network (open RAN, O-RAN or ORAN), a cloud radio access network (CRAN), or a WiFi system. The RAN can also be a communication system that combines two or more of the above systems.

[0099] The RAN node, which can also be referred to as an access network device, a RAN entity, or an access node, etc., constitutes a part of the communication system and helps the terminal to realize wireless access.

[0100] In a possible scenario, the RAN node can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node can be a macro base station, a micro base station or an indoor station, a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the RAN node can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, the access network device in the V2X technology can be a road side unit (RSU). All or part of the functions of the RAN node in the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform such as a cloud platform. The RAN node in the present application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node.

[0101] In another possible scenario, multiple RAN nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of the functions of a base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0102] In different systems, the CU (or CU-CP and CU-UP), DU or RU can also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU can also be referred to as O-CU (open CU), the DU can also be referred to as O-DU, the CU-CP can also be referred to as O-CU-CP, the CU-UP can also be referred to as O-CU-UP, and the RU can also be referred to as O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0103] The terminal can also be referred to as a terminal device, a UE mobile station, a mobile terminal, etc. The terminal can be widely applied to various scenarios, such as device-to-device (D2D), V2X communication, machine-type communication (MTC), internet of things (IOT), virtual reality, augmented reality, industrial control, autonomous driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the device form of the terminal.

[0104] It should be noted that the communication system and communication scenarios described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as the network architecture evolves and new business scenarios appear.

[0105] It should be noted that in the following embodiments of the present application, the names of messages between each execution subject, the names of each parameter, or the names of each information, etc. are only examples, and in other embodiments, they can also be other names, and the method provided by the present application does not specifically limit this.

[0106] It can be understood that in the embodiments of the present application, the execution subject can be a terminal or a RAN node, and the terminal or the RAN node can perform part or all of the steps in the embodiments of the present application. These steps or operations are only examples, and the embodiments of the present application can also perform other operations or variations of various operations. In addition, each step can be executed in a different order as presented in the embodiments of the present application, and it is possible that not all operations in the embodiments of the present application are executed.

[0107] It can be understood that the RAN node or the terminal is taken as an example in the present application, but the present application does not limit the interactive execution body. For example, the method executed by the RAN node in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the RAN node, and can also be implemented by a logical node, a logical module or software capable of implementing all or part of the RAN node function; the method executed by the terminal in the present application can also be executed by a module (such as a chip, a chip system, or a processor) applied to the terminal, and can also be implemented by a logical node, a logical module or software capable of implementing all or part of the terminal function.

[0108] In addition, the "sending information" in the present application can be understood as that one device sends information to another device, or can also be understood as that one logical module in a device sends information to another logical module. For example, "the RAN node sends information" can be understood as that the RAN node sends information to another device (such as the terminal), or can be understood as that a logical module 1 (such as a processing module) in the RAN node sends information to a logical module 2 (such as a transceiver module) in the RAN node.

[0109] The "receiving information" in the present application can be understood as that one device receives information from another device, or can also be understood as that one logical module in a device receives information from another logical module. For example, "the terminal receives information" can be understood as that the terminal receives information from another device (such as the RAN node), or can be understood as that a logical module 1 (such as a processing module) in the terminal receives information from a logical module 2 (such as a transceiver module) in the terminal.

[0110] The "sending information to … (such as the terminal)" in the present application or the related illustration in the drawings can be understood as that the destination of the information is the terminal. It can include directly or indirectly sending information to the terminal. The "receiving information from … (such as the RAN node)" or "receiving information from … (such as the RAN node)" or "receiving information sent by … (such as the RAN node)" or the related illustration in the drawings can be understood as that the source of the information is the RAN node, and can include directly or indirectly receiving information from the RAN node. The information between the source and the destination can be processed as necessary, such as format change, etc., but the destination can understand the effective information from the source. Similar expressions in the present application can be understood similarly, and will not be described here.

[0111] The communication method provided in the present application will be introduced below. As shown in FIG. 6, the communication method includes the following steps:

[0112] S601, the RAN node determines a power allocation granularity corresponding to the first signal. The first signal is a reference signal, or the first signal is a signal carried in a data channel or a control channel.

[0113] As a possible implementation, when the first signal is a reference signal, the first signal can be a sensing dedicated reference signal, and in this case, the first signal can be referred to as a sensing signal; or the first signal can be a communication reference signal, and in this case, the first signal can be used for communication and not for sensing, for example, communication can be performed according to the communication reference signal, but sensing cannot be performed according to the communication reference signal, or a more accurate sensing result cannot be obtained according to the communication reference signal, or the first signal can be used for both communication and sensing. When the first signal is used for both communication and sensing, the first signal can be referred to as a communication-sensing fusion signal.

[0114] As another possible implementation, when the first signal is a signal carried in a data channel or a control channel, the first signal can be used for communication and not for sensing, and in this case, the first signal can be referred to as a communication signal; or the first signal can be used for both communication and sensing, and in this case, the first signal can be referred to as a communication-sensing fusion signal.

[0115] The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of a subcarrier, a subcarrier group (SCG), a resource block (i.e., RB), or a resource block group. That is, power allocation can be performed in units of subcarriers, subcarrier groups, resource blocks, or resource block groups.

[0116] As a possible implementation, the power allocation granularity corresponding to the first signal can be understood as a frequency domain power allocation granularity. The subcarrier, the subcarrier group, the resource block, and the resource block group can also be understood as types of power allocation granularity.

[0117] As a possible implementation, a subcarrier can be understood as the smallest granularity of a frequency domain resource. For example, in an orthogonal frequency division multiplexing (OFDM) system, the frequency domain resource can be divided into a plurality of sub-resources, and each sub-resource on the frequency domain can be referred to as a subcarrier.

[0118] Optionally, the interval between the center positions or peak positions of two adjacent subcarriers on the frequency domain can be referred to as a subcarrier interval. For example, the subcarrier interval in the LTE system is 15 kHz, and the subcarrier interval in the NR system can be 15 kHz, or 30 kHz, or 60 kHz, or 120 kHz, etc.

[0119] As a possible implementation, one subcarrier group includes at least two subcarriers. For example, one subcarrier group includes 2, 3, 4, or 6 subcarriers, etc. Of course, the number of subcarriers included in one subcarrier group can also be other values, which are not limited in the present application.

[0120] As a possible implementation, one resource block includes a plurality of subcarriers that are continuous in the frequency domain. For example, in the LTE system and the NR system, one resource block includes 12 subcarriers. It can be understood that, with the evolution of communication technology and communication systems, the number of subcarriers included in one resource block can also be other values, for example, it can be 10, 14, or 16, of course, it can also be other values, which are not limited in the present application.

[0121] Optionally, the number of subcarriers included in one subcarrier group is different from the number of subcarriers included in one resource block. For example, the number of subcarriers included in one subcarrier group is less than the number of subcarriers included in one resource block.

[0122] As a possible implementation, the resource block group can also be referred to as RG. One resource block group includes at least two resource blocks.

[0123] Optionally, the above-mentioned at least two power allocation granularities can be referred to as (or composed of) a power allocation granularity set. The power allocation granularity set includes at least one of the above-mentioned four power allocation granularities (i.e., subcarrier, subcarrier group, resource block, and resource block group). In addition, the power allocation granularity set can also include other power allocation granularities in addition to the above-mentioned four power allocation granularities.

[0124] As a possible implementation, the RAN node can determine the power allocation granularity corresponding to the first signal according to the size of the first bandwidth, for example, there is an association relationship between the size of the first bandwidth and the power allocation granularity corresponding to the first signal. Wherein, the first bandwidth is the bandwidth occupied by the first signal, or the bandwidth used to carry the first signal scheduled by the RAN node. For example, in the case of a larger first bandwidth, the type of power allocation granularity corresponding to the first signal is a resource block or a resource block group; in the case of a smaller first bandwidth, the type of power allocation granularity corresponding to the first signal is a subcarrier or a subcarrier group.

[0125] As another possible implementation, the RAN node can determine the power allocation granularity corresponding to the first signal according to a signal type of the first signal, e.g., there is an association between the signal type of the first signal and the power allocation granularity corresponding to the first signal. Wherein, the signal type of the first signal can include at least one of the following: a reference signal, a signal carried in a data signal, or a signal carried in a control channel. For example, when the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is larger; when the first signal is a reference signal, the power allocation granularity corresponding to the first signal is smaller.

[0126] S602, the RAN node sends indication information to the terminal. Correspondingly, the terminal receives the indication information from the RAN node. Wherein, the indication information indicates the power allocation granularity corresponding to the first signal.

[0127] As a possible implementation, the indication information can explicitly or implicitly indicate the power allocation granularity corresponding to the first signal. Details will be described in subsequent embodiments, and will not be repeated here.

[0128] As a possible implementation, the indication information can be carried in broadcast information, such as system information block (SIB). Alternatively, the indication information can be carried in radio resource control (RRC) signaling, media access control (MAC) control element (CE), or downlink control information (DCI).

[0129] S603, the terminal transmits or receives the first signal according to the indication information.

[0130] In the first possible implementation, when the terminal is the transmitting end of the first signal, the terminal transmits the first signal according to the indication information. For example, the terminal can determine the power allocation granularity corresponding to the first signal according to the indication information, and then transmit the first signal according to the power allocation granularity corresponding to the first signal. For example, determine the power corresponding to each subcarrier in the first bandwidth according to the power allocation granularity corresponding to the first signal, and transmit the first signal on the first bandwidth according to the power corresponding to each subcarrier.

[0131] For example, as shown in (a) of FIG. 7, if the power allocation granularity corresponding to the first signal is 1 resource block, and the first bandwidth includes 4 resource blocks, the power can be allocated to each resource block respectively with the granularity of resource block. Alternatively, as shown in (b) of FIG. 7, if the power allocation granularity corresponding to the first signal is 1 subcarrier group, and the first bandwidth includes 8 subcarrier groups, the power can be allocated to each subcarrier group respectively with the granularity of subcarrier group.

[0132] As a possible implementation, when the terminal is the sending end of the first signal, the receiving end of the first signal can be the RAN node in steps S601 and S602. In this scenario, the RAN node receives the first signal according to the power allocation granularity corresponding to the first signal. For example, the RAN node receives the first signal by using a receiving algorithm matched with the power allocation granularity, so as to improve the receiving performance.

[0133] As another possible implementation, when the terminal is the sending end of the first signal, the receiving end of the first signal can be another terminal. For convenience of description, when the sending end and the receiving end of the first signal are both terminals, the sending end of the first signal is referred to as the first terminal, and the receiving end of the first signal is referred to as the second terminal.

[0134] Optionally, when the receiving end of the first signal is the second terminal, the RAN node or the first terminal can indicate the power allocation granularity corresponding to the first signal to the second terminal. The implementation of the second terminal receiving the first signal can refer to the foregoing description of the RAN receiving the first signal, which is not described herein again.

[0135] In the second possible implementation, when the terminal is the receiving end of the first signal, the terminal receives the first signal according to the indication information. For example, the terminal determines the power allocation granularity corresponding to the first signal according to the indication information, and then receives the first signal according to the power allocation granularity corresponding to the first signal. For example, the terminal receives the first signal by using a receiving algorithm matched with the power allocation granularity, so as to improve the receiving performance.

[0136] As a possible implementation, when the terminal is the receiving end of the first signal, the sending end of the first signal can be the RAN node in steps S601 and S602. In this scenario, the RAN node transmits the first signal according to the power allocation granularity corresponding to the first signal. The implementation of the RAN node transmitting the first signal can refer to the foregoing description of the terminal transmitting the first signal in the first possible implementation, which is not described herein again.

[0137] As another possible implementation, when the terminal is the receiving end of the first signal, the sending end of the first signal can be another terminal. For the convenience of description, when the sending end and the receiving end of the first signal are both terminals, the sending end of the first signal is referred to as a first terminal, and the receiving end of the first signal is referred to as a second terminal.

[0138] Optionally, when the sending end of the first signal is the first terminal, the RAN node also needs to indicate the power allocation granularity corresponding to the first signal to the first terminal before step S603. The implementation of the first terminal sending the first signal can refer to the foregoing related description of the terminal sending the first signal in the first possible implementation, and details are not described herein again.

[0139] In a possible implementation, when the first signal is used for sensing, for example, the first signal is a sensing signal or a communication-sensing fusion signal, the receiving end receiving the first signal can also be understood as the receiving end receiving an echo signal of the first signal.

[0140] Optionally, when the first signal is used for sensing, the receiving end of the first signal can process the first signal after receiving the first signal to determine the position, distance, speed, and the like of the target.

[0141] Based on the communication method of the present application, when performing signal transmission, the RAN node can indicate one power allocation granularity from at least two power allocation granularities, so that the transceiving end can determine the power corresponding to each subcarrier based on the power allocation granularity indicated by the RAN node, and then transmit or receive the signal according to the power corresponding to each subcarrier. Since the present application provides multiple power allocation granularities, the RAN node can flexibly select the power allocation granularity suitable for the current signal transmission, improve the flexibility and rationality of power allocation, and thus improve the sensing performance based on reasonable power allocation.

[0142] The overall flow of the communication method provided by the present application is described above. The specific implementation of the indication information is introduced below. Exemplarily, the indication information can be implemented in the following four ways:

[0143] The first way is that the indication information indicates the type of the power allocation granularity corresponding to the first signal.

[0144] As a possible implementation, the indication information can directly indicate one power allocation granularity as the power allocation granularity corresponding to the first signal. For example, the indication information can be carried in a first field. Multiple values of the first field correspond to multiple power allocation granularity types one by one. Exemplarily, the multiple power allocation granularity types can be at least two of subcarriers, subcarrier groups, resource blocks, and resource block groups.

[0145] As a first example, in the case that the multiple power allocation granularity types include subcarrier, subcarrier group, resource block and resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in Table 1.

[0146] Table 1

[0147] That is, in the case that the first field is set to the first value, the type of the power allocation granularity corresponding to the first signal is subcarrier; or, in the case that the first field is set to the second value, the type of the power allocation granularity corresponding to the first signal is subcarrier group; or, in the case that the first field is set to the third value, the type of the power allocation granularity corresponding to the first signal is resource block; or, in the case that the first field is set to the fourth value, the type of the power allocation granularity corresponding to the first signal is resource block group.

[0148] For example, the first value, the second value, the third value and the fourth value can be 0, 1, 2 and 3 respectively. Of course, the first value, the second value, the third value and the fourth value can also have other values, for example, the first value, the second value, the third value and the fourth value can be 3, 2, 1 and 0 respectively, or 3, 1, 2 and 0 respectively, or 0, 2, 1 and 3 respectively, and the like, without limitation.

[0149] As a second example, in the case that the multiple power allocation granularity types include three of subcarrier, subcarrier group, resource block or resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in at least one of Table 2 to Table 5.

[0150] Table 2

[0151] Table 3

[0152] Table 4

[0153] Table 5

[0154] For example, the first value, the second value and the third value can be 0, 1 and 2 respectively. Of course, the first value, the second value and the third value can also have other values, for example, 1, 2 and 3 respectively, or 2, 1 and 0 respectively, or 3, 2 and 1 respectively, and the like, without limitation.

[0155] As a third example, in the case that the multiple power allocation granularity types include two of subcarrier, subcarrier group, resource block or resource block group, the correspondence between the value of the first field and the power allocation granularity type can be as shown in at least one of Table 6 to Table 11.

[0156] Table 6

[0157] Table 7

[0158] Table 8

[0159] Table 9

[0160] Table 10

[0161] Table 11

[0162] Exemplarily, the first value and the second value can be 0 and 1 respectively. Of course, the first value and the second value can also have other values, for example, 1 and 0 respectively, without limitation.

[0163] As another possible implementation, the indication information can indicate a power allocation granularity from a plurality of allocation granularities included in the power allocation granularity set, as the power allocation granularity corresponding to the first signal. For example, the indication information can be implemented by a bit map. The indication information includes N bits, each bit corresponding to a power allocation granularity type, and N is the total number of power allocation granularities included in the power allocation granularity set. When a certain bit is set to a preset value, it indicates that the type of the power allocation granularity corresponding to the first signal is the power allocation granularity type corresponding to the bit. The preset value can be, for example, “1” or “0”, without limitation.

[0164] Exemplarily, taking the power allocation granularities included in the power allocation granularity set as subcarriers, subcarrier groups, resource blocks and resource block groups, and the preset value as 1, the indication information can include 4 bits, and the 4 bits correspond to subcarriers, subcarrier groups, resource blocks and resource block groups from left to right respectively. If the 4 bits are set to 0100, it indicates that the type of the power allocation granularity corresponding to the first signal is a subcarrier group.

[0165] As a possible implementation, in the first mode, the size of the power allocation granularity can be 1 power allocation granularity or a plurality of power allocation granularities. For example, when the power allocation granularity is a subcarrier, the size of the power allocation granularity can be 1 subcarrier or a plurality of subcarriers; when the power allocation granularity is a resource block, the size of the power allocation granularity can be 1 resource block or a plurality of resource blocks. Exemplarily, the size of the power allocation granularity can be predetermined by a protocol, or can be indicated in advance by a RAN node, or can be preset.

[0166] In the second mode, the indication information indicates the value of the power allocation granularity corresponding to the first signal. The value of the power allocation granularity can also be understood as the size of the power allocation granularity.

[0167] As a possible implementation, the type of the power allocation granularity can be predetermined by a protocol, or can be indicated by the RAN node in advance, for example, the type of the power allocation granularity can be indicated by the above-mentioned manner one, or can be preset. For example, the protocol can agree that the type of the power allocation granularity is one of a subcarrier, a subcarrier group, a resource block, or a resource block group.

[0168] For example, taking the type of the power allocation granularity as a resource block, and one resource block including 12 subcarriers as an example, when the value indicated by the indication information is 2, it indicates that the power allocation granularity is 2 resource blocks; when the value indicated by the indication information is 1, it indicates that the power allocation granularity is 1 resource block; when the value indicated by the indication information is 1 / 2, it indicates that the power allocation granularity is 1 / 2 resource block, i.e., 6 subcarriers; when the value indicated by the indication information is 1 / 6, it indicates that the power allocation granularity is 1 / 6 resource block, i.e., 2 subcarriers; and when the value indicated by the indication information is 1 / 12, it indicates that the power allocation granularity is 1 / 12 resource block, i.e., 1 subcarrier.

[0169] As a possible implementation, the value of the power allocation granularity corresponding to the first signal indicated by the indication information can include that: the indication information includes the value of the power allocation granularity corresponding to the first signal, for example, the indication information is carried in the second field, and the value of the second field is the value of the power allocation granularity corresponding to the first signal.

[0170] Alternatively, the value of the power allocation granularity corresponding to the first signal indicated by the indication information can include that: the indication information is carried in the second field, and the value of the second field and the value of the power allocation granularity corresponding to the first signal have an association relationship. For example, the association relationship can be as shown in Table 12.

[0171] Table 12

[0172] For example, the first value, the second value, the third value, and the fourth value can be 0, 1, 2, and 3 respectively. Of course, the first value, the second value, the third value, and the fourth value can also have other values, for example, the first value, the second value, the third value, and the fourth value can be 3, 2, 1, and 0 respectively, or 3, 1, 2, and 0 respectively, or 0, 2, 1, and 3 respectively, and the like, without limitation.

[0173] In the third manner, there is an association relationship between the number of frequency domain resource units occupied by the signal and the power allocation granularity, and the indication information indicates the number of frequency domain resource units occupied by the first signal. The association relationship between the number of frequency domain resource units occupied by the signal and the power allocation granularity includes an association relationship between the number of frequency domain resource units occupied by the first signal and the power allocation granularity corresponding to the first signal.

[0174] As a possible implementation, the frequency domain resource unit can be a RB, a resource block group, etc. The number of frequency domain resource units occupied by the first signal can be scheduled by the RAN node. The association between the number of frequency domain resource units occupied by the signal and the power allocation granularity can be defined by a protocol or can be pre-configured by the RAN node, without limitation.

[0175] As a possible implementation, taking the RB as an example of the frequency domain resource unit, the association between the number of frequency domain resource units occupied by the signal and the power allocation granularity can include at least one of the following shown in Table 13.

[0176] Table 13

[0177] That is, the association between the number of frequency domain resource units occupied by the signal and the power allocation granularity can include at least one of the following: when the number of RBs occupied by the signal is greater than or equal to a fifth value, the power allocation granularity is 2 RBs; when the number of RBs occupied by the signal is less than the fifth value and greater than or equal to a sixth value, the power allocation granularity is 1 RB; when the number of RBs occupied by the signal is less than the sixth value and greater than or equal to a seventh value, the power allocation granularity is 0.5 RB; and when the number of RBs occupied by the signal is less than the seventh value, the power allocation granularity is 1 subcarrier.

[0178] For example, the fifth value, the sixth value, and the seventh value can be 50, 25, and 10, respectively. Of course, the fifth value, the sixth value, and the seventh value can also have other values, such as 60, 35, and 20, respectively, and the application does not limit the specific values of the fifth value, the sixth value, and the seventh value.

[0179] For example, when the fifth value, the sixth value, and the seventh value are 50, 25, and 10, respectively, the association between the number of frequency domain resource units occupied by the signal and the power allocation granularity can include at least one of the following shown in Table 14.

[0180] Table 14

[0181] Based on the example shown in Table 14, if the number of RBs occupied by the first signal is greater than or equal to 50, the power allocation granularity corresponding to the first signal is 2 RBs; if the number of RBs occupied by the first signal is less than 50 and greater than or equal to 25, the power allocation granularity corresponding to the first signal is 1 RB; if the number of RBs occupied by the first signal is less than 25 and greater than or equal to 10, the power allocation granularity corresponding to the first signal is 0.5 RB; and if the number of RBs occupied by the first signal is less than 10, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0182] It should be noted that in the association relationship shown in Table 13, the case where X is equal to a certain value and the case where X is greater than a certain value are described as parallel cases. In addition, the case where X is equal to a certain value and the case where X is less than a certain value can also be taken as parallel cases. For example, the association relationship between the number of frequency domain resource units occupied by the signal and the power allocation granularity can also include at least one of the following shown in Table 15.

[0183] Table 15

[0184] In this way three, the number of frequency domain resource units occupied by the first signal can be used to determine the power allocation granularity corresponding to the first signal. Since the RAN node needs to schedule the frequency domain resource units to transmit the first signal when transmitting the first signal, the scheduling information of the first signal can be used to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0185] In way four, there is an association relationship between the signal type of the signal and the power allocation granularity, and the indication information indicates the signal type of the first signal. The association relationship between the signal type of the signal and the power allocation granularity includes the association relationship between the signal type of the first signal and the power allocation granularity corresponding to the first signal.

[0186] As a possible implementation, the signal type of the signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel. Further, the reference signal can be divided into a reference signal for sensing and communication, a reference signal for sensing but not for communication (also known as a sensing dedicated reference signal, or a sensing signal).

[0187] As a possible implementation, the association relationship between the signal type of the signal and the power allocation granularity can include at least one of the following shown in Table 16.

[0188] Table 16

[0189] That is, the association relationship between the signal type of the signal and the power allocation granularity can include at least one of the following: when the signal type is a signal carried in a data channel or a control channel, the power allocation granularity is 2 RBs; when the signal type is a reference signal and the reference signal is used for sensing and communication, the power allocation granularity is 1 RB; when the signal type is a reference signal and the signal is dedicated for sensing, the power allocation granularity is 0.5 RB.

[0190] In this way four, as a possible implementation, the signal type of the first signal sent or received by the terminal in the above step S603 is the signal type indicated by the indication information.

[0191] In this way, the fourth mode can determine the power allocation granularity corresponding to the first signal based on the signal type of the first signal. Since the RAN node can indicate the signal type of the first signal when scheduling the transmission of the first signal, the scheduling information of the first signal can be reused to indicate the power allocation granularity corresponding to the first signal, thereby saving signaling overhead.

[0192] It should be noted that the above four modes can be used independently or in combination. For example, mode one and mode two can be combined to indicate the type and size of the power allocation granularity. Mode three and mode four can also be combined, for example, the number of frequency domain resource units occupied by the signal and the signal type of the signal are used to indicate the power allocation granularity. Of course, there can be other combination modes, which are not limited by the present application.

[0193] In a possible implementation, in addition to indicating the power allocation granularity, the RAN node can also indicate the power allocation mode. For the convenience of description, the above-mentioned indication information indicating the power allocation granularity is referred to as first indication information, and the information indicating the power allocation mode is referred to as second indication information. That is, before step S603, the RAN node can send the second indication information, and the terminal receives the second indication information accordingly. The second indication information indicates the power allocation mode corresponding to the first signal. The power allocation mode corresponding to the first signal is used to determine the power corresponding to the frequency domain resource group in the first bandwidth.

[0194] As a possible implementation, the power allocation mode corresponding to the first signal is one of at least two power allocation modes. The at least two power allocation modes include at least one of a first power allocation mode, a second power allocation mode, a third power allocation mode, a fourth power allocation mode, a fifth power allocation mode, or a sixth power allocation mode.

[0195] Among the six power allocation modes, the power corresponding to all frequency domain resource groups in the bandwidth is not completely the same, that is, among the power corresponding to all frequency domain resource groups, there are at least two different powers. For example, the size of the frequency domain resource group is equal to the size of the power allocation granularity. For example, when the power allocation granularity is 2 resource blocks, the frequency domain resource group includes 2 resource blocks; when the power allocation granularity is 1 subcarrier, the frequency domain resource group includes 1 subcarrier. The six power allocation modes are described below.

[0196] 1. The first power allocation mode:

[0197] The first power allocation mode includes: from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power allocation priority of the frequency domain resource group decreases in turn.

[0198] As a possible implementation, the bandwidth refers to a bandwidth occupied by the first signal, or a bandwidth scheduled by the RAN node for carrying the first signal.

[0199] As a possible implementation, the edge frequency domain resource group of the bandwidth refers to a frequency domain resource group with the lowest or highest frequency in the bandwidth. The frequency can be the lowest frequency, the highest frequency, or the center frequency of the frequency domain resource group.

[0200] As a possible implementation, the center frequency domain resource group of the bandwidth refers to a frequency domain resource group located in the middle of the bandwidth. In the case where the bandwidth includes an even number of frequency domain resource groups, there are two center frequency domain resource groups; in the case where the bandwidth includes an odd number of frequency domain resource groups, there is one center frequency domain resource group.

[0201] For example, in the case where the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in order of frequency from low to high, the edge frequency domain resource groups are frequency domain resource group #1 and frequency domain resource group #6, and the center frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4. Alternatively, in the case where the bandwidth includes 7 frequency domain resource groups, and the 7 frequency domain resource groups are sequentially numbered as #1-#7 in order of frequency from low to high, the edge frequency domain resource groups are frequency domain resource group #1 and frequency domain resource group #7, and the center frequency domain resource group is frequency domain resource group #4.

[0202] As a possible implementation, in the first power allocation manner, there is a frequency domain resource group to which no power is allocated. For example, the frequency domain resource group to which no power is allocated is not an edge frequency domain resource group.

[0203] As a possible implementation, in the first power allocation manner, the power corresponding to the frequency domain resource groups to which power is allocated is the same; or the power corresponding to the frequency domain resource groups to which power is allocated is different, for example, the power corresponding to two frequency domain resource groups symmetric about the center frequency domain resource group to which power is allocated is the same, and the power corresponding to two frequency domain resource groups asymmetric about the center frequency domain resource group to which power is allocated is different.

[0204] Optionally, in the embodiments of the present application, two frequency domain resource groups being symmetric about the center frequency domain resource group can be understood as: the difference between the index of the frequency domain resource group A and the index of the center frequency domain resource group is the same as the difference between the index of the frequency domain resource group B and the index of the center frequency domain resource group; or it can also be understood as: the difference between the frequency of the frequency domain resource group A and the frequency of the center frequency domain resource group is the same as the difference between the frequency of the frequency domain resource group B and the frequency of the center frequency domain resource group. The frequency of the frequency domain resource group can be the lowest frequency, the highest frequency, or the center frequency of the frequency domain resource group.

[0205] For example, assuming that the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high, and that the frequency domain resource group #1, the frequency domain resource group #2, the frequency domain resource group #5, and the frequency domain resource group #6 are allocated power, and the frequency domain resource group 3 and the frequency domain resource group 4 are not allocated power, as shown in (a) of FIG. 8, the power corresponding to the frequency domain resource group #1, the frequency domain resource group #2, the frequency domain resource group #5, and the frequency domain resource group #6 can be the same; or as shown in (b) of FIG. 8, the frequency domain resource group #1 and the frequency domain resource group #6 are symmetric about the center frequency domain resource, and the power corresponding to the two can be the same (denoted as power 1); the frequency domain resource group #2 and the frequency domain resource group #5 are symmetric about the center frequency domain resource, and the power corresponding to the two can be the same (denoted as power 2); and the power 1 and the power 2 can be different. The dashed line indicates that the power is not allocated.

[0206] As a first possible implementation, the power allocation priority of the frequency domain resource groups decreases in turn from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, which can also be understood as: starting from the edge frequency domain resource group of the bandwidth, the power is allocated to the frequency domain resource groups in the order of increasing or decreasing frequency, until the power allocation is completed.

[0207] For example, assuming that the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high, the power can be allocated to the frequency domain resource group #1 and the frequency domain resource group #6 first, then to the frequency domain resource group #2 and the frequency domain resource group #5, and so on, until the power allocation is completed. The power corresponding to the frequency domain resource group #1 and the frequency domain resource group #6 can be the same, and the power corresponding to the frequency domain resource group #2 and the frequency domain resource group #5 can be the same. The power corresponding to the frequency domain resource group #1 and the frequency domain resource group #2 can be the same or different.

[0208] Optionally, each frequency domain resource group can correspond to a power threshold, which can be understood as an upper limit of the power value. When the power is allocated based on the first power allocation mode, the power value allocated to the frequency domain resource group with the highest priority can be the same as the power threshold corresponding thereto. For the frequency domain resource group with the next priority, if the remaining power value is greater than or equal to the power threshold corresponding to the frequency domain resource group, the power value allocated to the frequency domain resource group can be the same as the power threshold corresponding thereto; if the remaining power value is less than the power threshold corresponding to the frequency domain resource group, the power value allocated to the frequency resource unit is the remaining power value. The power thresholds corresponding to different resource units can be the same or different, which is not limited.

[0209] For example, if the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high, the frequency domain resource group #1 and the frequency domain resource group #6 can be first allocated the power equal to the power threshold corresponding thereto. When allocating power to the frequency domain resource group #2 and the frequency domain resource group #5, if the remaining power is greater than or equal to the sum of the power thresholds corresponding to the two, the power allocated to the two is the same as the power threshold corresponding thereto; if the remaining power is less than the sum of the power thresholds corresponding to the two, the power allocated to the two is less than the power threshold corresponding thereto. After the power is allocated to the frequency domain resource group #2 and the frequency domain resource group #5, if there is still remaining power, the power is allocated to other frequency domain resource groups until the power allocation is completed.

[0210] As a second possible implementation, the power allocation priority of the frequency domain resource groups decreases sequentially from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, which can also be understood as: when the power allocated to the frequency domain resource groups is the same, the number N of the frequency domain resource groups to which the power can be allocated is first determined, and then the N frequency domain resource groups include N1 frequency domain resource groups starting from the edge frequency domain resource group with the lowest frequency and N2 frequency domain resource groups starting from the edge frequency domain resource group with the highest frequency.

[0211] Wherein, N1+N2=N. When N is even, N1=N2=N / 2. When N is odd, Or, Or, Or,

[0212] For example, if the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of frequency from low to high, the number N of the frequency domain resource groups to which the power can be allocated is 4, then the frequency domain resource group #1, the frequency domain resource group #6, the frequency domain resource group #2 and the frequency domain resource group #5 are allocated the power, and the power of the four is the same.

[0213] Based on the first power allocation mode, the power is preferentially allocated to the edge frequency domain resource group, which can make the main lobe width of the ambiguity function of the signal the narrowest. Since the main lobe width is usually narrower, the perception accuracy / resolution is higher, so the perception accuracy and perception resolution can be maximized based on this mode. Therefore, the first power allocation mode can also be called a high-precision / high-resolution power allocation mode.

[0214] 2. Second power allocation mode:

[0215] The second power allocation manner includes: from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group increases in turn. Wherein, the implementation of the bandwidth, the edge frequency domain resource group and the center frequency domain resource group can refer to the related description in the first power allocation manner, and will not be described here.

[0216] As a possible implementation, in the case that there are multiple center frequency domain resource groups in the bandwidth, the power corresponding to the multiple center frequency domain resource groups is the same.

[0217] As a possible implementation, the power corresponding to the two frequency domain resource groups symmetric about the center frequency domain resource group is the same. Alternatively, the power corresponding to the two frequency domain resource groups symmetric about the center frequency domain resource group is different. The implementation of the two frequency domain resource groups symmetric about the center frequency domain resource group can refer to the related description in the first power allocation manner, and will not be described here.

[0218] For example, as shown in (a) of FIG. 9, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are numbered as #1-#6 in the order of frequency from low to high, the center frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, the power corresponding to the two is the same, frequency domain resource group #1 and frequency domain resource group #6 are symmetric about the center frequency domain resource, the power corresponding to the two can be the same (denoted as power 1), frequency domain resource group #2 and frequency domain resource group #5 are symmetric about the center frequency domain resource, the power corresponding to the two can be the same (denoted as power 2), and power 1 is less than power 2.

[0219] Alternatively, as shown in (b) of FIG. 9, the center frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, the power corresponding to the two is the same, the power corresponding to frequency domain resource group #2 is greater than the power corresponding to frequency domain resource group #1, and the power corresponding to frequency domain resource group #5 is greater than the power corresponding to frequency domain resource group #6. The power corresponding to frequency domain resource group #1 and frequency domain resource group #6 is different, and the power corresponding to frequency domain resource group #2 and frequency domain resource group #5 is different.

[0220] As a possible implementation, from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group increases in turn, which can also be understood as: for the frequency domain resource group with a frequency higher than the center frequency domain resource group, the higher the frequency, the lower the corresponding power, and the lower the frequency, the higher the corresponding power; for the frequency domain resource group with a frequency lower than the center frequency domain resource group, the higher the frequency, the higher the corresponding power, and the lower the frequency, the lower the corresponding power.

[0221] Based on the second power allocation manner, the frequency domain resource groups located in the middle of the bandwidth are allocated higher power, and the frequency domain resource groups located at the edge of the bandwidth are allocated lower power, which can make the peak side lobe ratio of the ambiguity function of the signal as low as possible, thereby reducing the false alarm rate of perception. Therefore, the second power allocation manner can also be referred to as a low false alarm rate power allocation manner.

[0222] 3. A third power allocation manner:

[0223] The third power allocation manner includes that the power corresponding to the frequency domain resource groups increases successively from the edge frequency domain resource groups of the bandwidth to the center frequency domain resource groups of the bandwidth. That is, the third power allocation manner is similar to the second power allocation manner, and the difference between the two is that the power corresponding to the same frequency domain resource group is different when the second power allocation manner and the third power allocation manner are respectively used for power allocation.

[0224] Taking any frequency domain resource group (denoted as a first frequency domain resource group) in the bandwidth as an example, when the second power allocation manner is used for power allocation, the power corresponding to the first frequency domain resource group is a first power; when the third power allocation manner is used for power allocation, the power corresponding to the first frequency domain resource group is a second power. The first power and the second power are different. The remaining implementation of the third power allocation manner can refer to the related description of the second power allocation manner, and will not be described here.

[0225] For example, for the first frequency domain resource group, the first power allocated by the second power allocation manner is greater than a first threshold, and the second power allocated by the third power allocation manner is less than the first threshold.

[0226] As a possible implementation, the difference between the third power allocation manner and the second power allocation manner is that when the second power allocation manner is used for power allocation, the difference between the maximum power and the minimum power among the powers corresponding to all the frequency domain resource groups included in the bandwidth is less than a second threshold, and when the third power allocation manner is used for power allocation, the difference between the maximum power and the minimum power among the powers corresponding to all the frequency domain resource groups included in the bandwidth is greater than the second threshold.

[0227] Based on the third power allocation manner, the main lobe of the ambiguity function of the signal can be relatively narrow while the peak side lobe ratio is also relatively low, thereby realizing a better compromise between the perception accuracy / perception resolution and the false alarm rate, that is, the perception accuracy / perception resolution can be guaranteed while maintaining a relatively low false alarm rate. Therefore, the third power allocation manner can also be referred to as a power allocation manner for compromising between the perception accuracy / resolution and the false alarm rate.

[0228] 4. A fourth power allocation manner:

[0229] The fourth power allocation manner includes: from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group decreases in turn. Wherein, the implementation of the bandwidth, the edge frequency domain resource group and the center frequency domain resource group can refer to the related description in the first power allocation manner, and will not be described here.

[0230] As a possible implementation, in the case that there are multiple center frequency domain resource groups in the bandwidth, the power corresponding to the multiple center frequency domain resource groups is the same.

[0231] As a possible implementation, the power corresponding to the two frequency domain resource groups symmetric about the center frequency domain resource group is the same. Alternatively, the power corresponding to the two frequency domain resource groups symmetric about the center frequency domain resource group is different. The implementation that the two frequency domain resource groups are symmetric about the center frequency domain resource group can refer to the related description in the first power allocation manner, and will not be described here.

[0232] For example, as shown in (a) of FIG. 10, the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are numbered as #1-#6 in the order of frequency from low to high, the center frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, the power corresponding to the two is the same, frequency domain resource group #1 and frequency domain resource group #6 are symmetric about the center frequency domain resource, the power corresponding to the two can be the same (denoted as power 1), frequency domain resource group #2 and frequency domain resource group #5 are symmetric about the center frequency domain resource, the power corresponding to the two can be the same (denoted as power 2), and power 1 is greater than power 2.

[0233] Alternatively, as shown in (b) of FIG. 10, the center frequency domain resource groups are frequency domain resource group #3 and frequency domain resource group #4, the power corresponding to the two is the same, the power corresponding to frequency domain resource group #2 is less than the power corresponding to frequency domain resource group #1, and the power corresponding to frequency domain resource group #5 is less than the power corresponding to frequency domain resource group #6. The power corresponding to frequency domain resource group #1 and frequency domain resource group #6 is different, and the power corresponding to frequency domain resource group #2 and frequency domain resource group #5 is different.

[0234] As a possible implementation, from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group decreases in turn, which can also be understood as: for the frequency domain resource group with a frequency higher than the center frequency domain resource group, the higher the frequency, the higher the corresponding power, and the lower the frequency, the lower the corresponding power; for the frequency domain resource group with a frequency lower than the center frequency domain resource group, the higher the frequency, the lower the corresponding power, and the lower the frequency, the higher the corresponding power.

[0235] Based on the fourth power allocation manner described above, the frequency domain resource group located in the middle of the bandwidth is allocated lower power, and the frequency domain resource group located at the edge of the bandwidth is allocated higher power, which can make the main lobe width of the ambiguity function of the signal relatively narrow, and the distortion of the signal is relatively small, thereby realizing a better compromise between the perception accuracy / perception resolution and the spectrum efficiency, that is, while ensuring the perception accuracy / perception resolution, the spectrum efficiency can be ensured. Therefore, the fourth power allocation manner can also be referred to as a power allocation manner for compromising the perception accuracy / resolution and the spectrum efficiency.

[0236] 5. A fifth power allocation manner:

[0237] The fifth power allocation manner includes: from the edge frequency domain resource group of the bandwidth to the center frequency domain resource group of the bandwidth, the power corresponding to the frequency domain resource group decreases in turn. That is, the fifth power allocation manner is similar to the fourth power allocation manner, and the difference between the two is that: for the same frequency domain resource group, the power corresponding to the frequency domain resource group is different when the fourth power allocation manner and the fifth power allocation manner are used for power allocation, respectively.

[0238] Taking any frequency domain resource group (denoted as a second frequency domain resource group) in the bandwidth as an example, when the fourth power allocation manner is used for power allocation, the power corresponding to the second frequency domain resource group is a third power; when the fifth power allocation manner is used for power allocation, the power corresponding to the second frequency domain resource group is a fourth power. The third power and the fourth power are different. The remaining implementation of the fifth power allocation manner can be referred to the related description of the fourth power allocation manner, which will not be described here.

[0239] Based on the fifth power allocation manner described above, the main lobe width of the ambiguity function of the signal can be relatively narrow and the peak side lobe can be relatively low, while the distortion of the signal is relatively small, thereby realizing a better compromise between the perception accuracy / perception resolution, the false alarm rate and the spectrum efficiency, that is, while ensuring the perception accuracy / perception resolution, a lower false alarm rate and a higher spectrum efficiency can be ensured. Therefore, the fifth power allocation manner can also be referred to as a power allocation manner for compromising the perception accuracy / resolution, the false alarm rate and the spectrum efficiency.

[0240] 6. A sixth power allocation manner:

[0241] The sixth power allocation manner includes: the power corresponding to the frequency domain resource group is related to the channel quality corresponding to the frequency domain resource group. Illustratively, the channel quality corresponding to the frequency domain resource group can be understood as: the quality of the channel to be experienced by the frequency domain resource group.

[0242] As a possible implementation, the power corresponding to the frequency domain resource group is positively related to the channel quality corresponding to the frequency domain resource group. For example, if the channel quality corresponding to the frequency domain resource group is better, the power corresponding to the frequency domain resource group is larger; if the channel quality corresponding to the frequency domain resource group is worse, the power corresponding to the frequency domain resource group is smaller or 0.

[0243] For example, if the bandwidth includes 6 frequency domain resource groups, and the 6 frequency domain resource groups are sequentially numbered as #1-#6 in the order of low to high frequency, and the channel quality corresponding to the 6 frequency domain resource groups satisfies: frequency domain resource group #4> frequency domain resource group #6> frequency domain resource group #5= frequency domain resource group #2> frequency domain resource group #1> frequency domain resource group #3, the power corresponding to the 6 frequency domain resource groups can be as shown in FIG. 11. Referring to FIG. 11, the power corresponding to the frequency domain resource group #4> the power corresponding to the frequency domain resource group #6> the power corresponding to the frequency domain resource group #5= the power corresponding to the frequency domain resource group #2> the power corresponding to the frequency domain resource group #1> the power corresponding to the frequency domain resource group #3.

[0244] Based on the sixth power allocation mode, the higher power is allocated to the frequency domain resource group with better channel quality based on the channel quality corresponding to the frequency domain resource group, which can improve the spectrum efficiency. Therefore, the sixth power allocation mode can also be referred to as a high spectrum efficiency power allocation mode.

[0245] In a possible implementation, each power allocation mode can correspond to at least one power allocation coefficient set. The power allocation coefficient set includes a plurality of power allocation coefficients, and the power allocation coefficient can be used to determine the power corresponding to the frequency domain resource group. The power allocation coefficient is a real number.

[0246] It can be understood that in the case that a power allocation mode corresponds to a plurality of power allocation coefficient sets, it is indicated that a plurality of power combinations can be determined based on the power allocation mode. Subsequently, a suitable power combination can be selected from the plurality of power combinations according to actual conditions.

[0247] Optionally, the plurality of power allocation coefficients included in the power allocation coefficient set correspond to the plurality of frequency domain resource groups one by one, and each power allocation coefficient represents the relative value of the power allocated to the corresponding frequency domain resource group.

[0248] For example, with the power allocation coefficient set {1, 0.8, 0.6, 0.6, 0.8, 1}, the 6 power allocation coefficients in the power allocation coefficient set respectively correspond to the frequency domain resource group #1 to the frequency domain resource group #6, the power allocation coefficient set can represent that the ratio of the power corresponding to the frequency domain resource group #1 to the power corresponding to the frequency domain resource group #2 is 1:0.8, the ratio of the power corresponding to the frequency domain resource group #1 to the power corresponding to the frequency domain resource group #3 is 1:0.6, the ratio of the power corresponding to the frequency domain resource group #2 to the power corresponding to the frequency domain resource group #3 is 0.8:0.6, and so on.

[0249] Optionally, the power allocation coefficient set corresponding to each power allocation manner can be pre-defined by a protocol or determined by the RAN node, which is not limited in the present application.

[0250] Optionally, the absolute value of the power corresponding to each frequency domain resource group can be determined according to the total transmission power of the signal and the power allocation coefficient set corresponding to a certain power allocation manner. For example, with the power allocation coefficient set {1, 0.8, 0.6, 0.6, 0.8, 1}, the 6 power allocation coefficients in the power allocation coefficient set respectively correspond to the frequency domain resource group #1 to the frequency domain resource group #6, if the total transmission power is P, the powers corresponding to the frequency domain resource group #1 to the frequency domain resource group #6 are respectively:

[0251] The perception accuracy is mainly used to represent the deviation between the perception result of the target and the ideal true result. For example, in distance perception, if the distance between the perceived target and the perception device is obtained as 6 meters (meter, m) through perception, and the actual situation is that the distance between the perceived target and the perception device is 5 m, then the perception error and the perception accuracy are 1 m. The perception device can be understood as a device that performs perception. The perception resolution is mainly used to represent the minimum ability to distinguish two different targets. For example, in distance perception, a distance resolution of 1 m can be understood as that when the distance between two perceived targets is greater than 1 m, the perception device can distinguish that there are two targets; when the distance between two perceived targets is less than 1 m, the perception device cannot distinguish that there are two targets. The false alarm rate is mainly used to represent the performance of falsely determining a false target in the case where there is no target. The spectrum efficiency is mainly used to represent the utilization efficiency of the frequency spectrum for communication. The coverage performance is mainly used to represent the utilization efficiency of power for communication.

[0252] Optionally, the at least two power allocation manners can be referred to as (or composed of) a power allocation manner set. The power allocation manner set includes at least one of the above six power allocation manners (the first power allocation manner to the sixth power allocation manner). In addition, the power allocation manner set can also include other power allocation manners in addition to the above six power allocation manners.

[0253] In a possible implementation, the power allocation manner set can also be different in the case that the type or function of the first signal is different.

[0254] For example, in the case that the first signal is an uplink reference signal for sensing, the power allocation manner set includes at least one of the first power allocation manner or the second power allocation manner; in the case that the first signal is a downlink reference signal for sensing, the power allocation manner set includes at least one of the second power allocation manner or the third power allocation manner.

[0255] In the case that the first signal is for sensing and is carried in a data channel or a control channel, or the first signal is for communication and is carried in a data channel or a control channel, the power allocation manner set includes at least one of the fourth power allocation manner, the fifth power allocation manner or the sixth power allocation manner.

[0256] Further, for different types of signals for sensing and communication, the power allocation manner set can be the same, but the power allocation coefficients corresponding to the same power allocation manner in the power allocation manner set can be different. For example, in the case that the first signal is an uplink data signal for sensing and communication, or a downlink data signal for sensing and communication, the power allocation manner set includes at least one of the fourth power allocation manner or the fifth power allocation manner, but in the case that the first signal is an uplink data signal for sensing and communication, the fourth power allocation manner corresponds to the first power allocation coefficient set, and the fifth power allocation manner corresponds to the second power allocation coefficient set; in the case that the first signal is a downlink data signal for sensing and communication, the fourth power allocation manner corresponds to the third power allocation coefficient set, and the fifth power allocation manner corresponds to the fourth power allocation coefficient set. The first power allocation coefficient set and the third power allocation coefficient set are different, and the second power allocation coefficient set and the fourth power allocation coefficient set are different.

[0257] The above describes the six power allocation manners provided by the present application. The implementation of the second indication information indicating the power allocation manner is described in detail below.

[0258] As a possible implementation, the second indication information indicates an index of the power allocation manner corresponding to the first signal. Optionally, the protocol can predefine or the RAN node and the terminal can pre-determine the index of each power allocation manner in the set of power allocation manners and the corresponding set of power allocation coefficients, i.e., determine the correspondence among the power allocation manner index, the power allocation manner, and the set of power allocation coefficients. Based on this, in the case that the RAN node indicates the index of the power allocation manner corresponding to the first signal through the second indication information, the terminal can determine the power allocation manner corresponding to the index and the power allocation coefficient according to the pre-determined correspondence.

[0259] For example, in the case that the set of power allocation manners includes 3 power allocation manners, each of which corresponds to a set of power allocation coefficients, the correspondence among the power allocation manner index, the power allocation manner, and the set of power allocation coefficients can be as shown in Table 17.

[0260] Table 17

[0261] Among them, at least one of the power allocation manner 1, the power allocation manner 2, and the power allocation manner 3 belongs to the six power allocation manners provided in the present application.

[0262] For example, in this possible implementation, the second indication information can include a first field, and the value of the first field can be understood as the index of the power allocation manner corresponding to the first signal. For example, in the case that the power allocation manner corresponding to the first signal is the power allocation manner 1, the first field can be set to "00", i.e., indicating that the index of the power allocation manner corresponding to the first signal is 0. The terminal can know that the power allocation manner corresponding to the first signal is the power allocation manner 1 based on the correspondence shown in Table 1.

[0263] Optionally, in the case that the power allocation manner corresponding to the first signal corresponds to multiple sets of power allocation coefficients, the second indication information further indicates a certain set of power allocation coefficients (denoted as the first set of power allocation coefficients) corresponding to the power allocation manner, which can be understood as the set of power allocation coefficients finally used to determine the power. That is, the second indication information indicates the power allocation manner corresponding to the first signal and the set of power allocation coefficients corresponding to the power allocation manner.

[0264] For example, in the case that the power allocation manner corresponding to the first signal is the power allocation manner 1, and the power allocation manner 1 corresponds to the set of power allocation coefficients 11 and the set of power allocation coefficients 12 (i.e., the correspondence is as shown in Table 18), the second indication information can include a first field and a second field, the first field is used to indicate the power allocation manner 1, and the second field is used to indicate the first set of power allocation coefficients.

[0265] Table 18

[0266] Based on the above example, assuming that the first power allocation coefficient set is power allocation coefficient set 11, the value of the second field can be understood as the index of the power allocation coefficient set, and the second field can be set to "0", that is, the index of the first power allocation coefficient set is 0. The terminal can obtain the power allocation mode corresponding to the first signal based on the corresponding relationship shown in Table 18, that is, the power allocation mode corresponding to the first signal is power allocation mode 1, and the power allocation coefficient set corresponding to the power allocation mode 1 is used this time.

[0267] As another possible implementation, the second indication information indicates the power allocation coefficient set corresponding to the power allocation mode corresponding to the first signal. Optionally, all power allocation coefficient sets corresponding to all power allocation modes in the power allocation mode set can be numbered without repetition in advance to determine the corresponding relationship between the index of the power allocation coefficient set, the power allocation coefficient set, and the power allocation mode. Subsequently, when the RAN node indicates a certain power allocation coefficient set through the second indication information, the terminal can determine the power allocation coefficient set and the power allocation mode corresponding to the power allocation coefficient set according to the corresponding relationship,

[0268] For example, the power allocation mode set includes three power allocation modes, and each power allocation mode corresponds to two power allocation coefficient sets. The corresponding relationship between the index of the power allocation coefficient set, the power allocation coefficient set, and the power allocation mode can be as shown in Table 19.

[0269] Table 19

[0270] Among them, at least one of the power allocation mode 1, the power allocation mode 2, and the power allocation mode 3 belongs to the six power allocation modes provided in the present application.

[0271] For example, in this possible implementation, the second indication information can include a third field. The value of the third field can be understood as the index of the power allocation coefficient set of the power allocation mode corresponding to the first signal. For example, the power allocation coefficient set 1 of the power allocation mode 1 corresponding to the first signal, the third field can be set to "000", that is, the index of the power allocation coefficient set of the power allocation mode corresponding to the first signal is 0. The terminal can obtain the power allocation mode corresponding to the first signal based on the corresponding relationship shown in Table 19, that is, the power allocation mode corresponding to the first signal is power allocation mode 1, and the corresponding power allocation coefficient set is power allocation coefficient set 1.

[0272] In a possible implementation, in the case that the RAN node also sends the second indication information, in step S603, the terminal transmits or receives the first signal according to the first indication information and the second indication information. For example, the terminal determines the power corresponding to each frequency domain resource group in the first bandwidth according to the power allocation manner corresponding to the power allocation coefficients and the total power indicated by the second indication information, the size of the frequency domain resource group being the size of the power allocation granularity indicated by the first indication information, and the type of the frequency domain resource group being the type of the power allocation granularity indicated by the first indication information.

[0273] Based on the above scheme, when transmitting a signal, the RAN node can indicate one power allocation manner from at least two power allocation manners, so that the transceiver can determine the power corresponding to each frequency domain resource group based on the power allocation manner indicated by the RAN node, and then transmit or receive a signal according to the power corresponding to each frequency domain resource group. Since the present application provides multiple power allocation manners, the RAN node can flexibly select a power allocation manner suitable for current signal transmission, improve the flexibility and rationality of power allocation, and then improve the sensing performance and / or communication performance based on reasonable power allocation.

[0274] The above describes the method provided by the present application, and in addition, the present application also provides a communication device for implementing the functions described in the above method embodiments.

[0275] It can be understood that, in order to implement the above functions, the communication device comprises a hardware structure and / or a software module corresponding to each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is implemented in hardware or computer software driven hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0276] The embodiments of the present application can divide the functions of the communication device according to the above method embodiments, for example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated module can be realized in the form of hardware or software function module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. There can be another division manner when actually implemented.

[0277] FIG. 12 shows a structural diagram of a communication apparatus 120. The communication apparatus 120 includes a processing module 1201 and a transceiver module 1202. The communication apparatus 120 can be used to implement the functions of the RAN node or the terminal described above.

[0278] In some embodiments, the communication apparatus 120 can further include a storage module (not shown in FIG. 12) for storing program instructions and data.

[0279] In some embodiments, the transceiver module 1202, which can also be referred to as a transceiver unit, is configured to implement the transmitting and / or receiving functions. The transceiver module 1202 can be constituted by a transceiver circuit, a transceiver, a transceiver, or a communication interface.

[0280] In some embodiments, the transceiver module 1202 can include a receiving module and a transmitting module, which are respectively configured to perform the receiving and transmitting steps of the RAN node or the terminal in the method embodiments described above, and / or other processes for supporting the techniques described herein; and the processing module 1201 can be configured to perform the processing steps of the RAN node or the terminal in the method embodiments described above, and / or other processes for supporting the techniques described herein.

[0281] When the communication apparatus 120 is used to implement the functions of the RAN node:

[0282] The processing module 1201 is configured to determine a power allocation granularity corresponding to a first signal; and the transceiver module 1202 is configured to transmit indication information indicating the power allocation granularity corresponding to the first signal. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group. The first signal is a reference signal or a signal carried in a data channel or a control channel.

[0283] Optionally, the transceiver module 1202 is further configured to receive or transmit the first signal according to the power allocation granularity corresponding to the first signal.

[0284] When the communication apparatus 120 is used to implement the functions of the terminal:

[0285] The transceiver module 1202 is configured to receive indication information indicating a power allocation granularity corresponding to a first signal; and the transceiver module 1202 is further configured to transmit or receive the first signal according to the indication information. The power allocation granularity corresponding to the first signal is one of at least two power allocation granularities. The at least two power allocation granularities include at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group. The first signal is a reference signal or a signal carried in a data channel or a control channel.

[0286] Optionally, the transceiver 1202 is further configured to transmit or receive the first signal according to the indication information, including: the transceiver 1202 is further configured to determine the power allocation granularity corresponding to the first signal according to the indication information; and the transceiver 1202 is further configured to transmit or receive the first signal according to the power allocation granularity corresponding to the first signal.

[0287] When the communication apparatus 120 is configured to implement the function of the RAN node or the terminal:

[0288] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the type of the power allocation granularity corresponding to the first signal; and / or, the indication information indicates the value of the power allocation granularity corresponding to the first signal.

[0289] Optionally, the indication information is carried in a first field. When the first field is set to a first value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, when the first field is set to a second value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, when the first field is set to a third value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, when the first field is set to a fourth value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

[0290] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the number of frequency domain resource units occupied by the first signal, and the number of frequency domain resource units occupied by the first signal and the power allocation granularity corresponding to the first signal have a correlation relationship.

[0291] Optionally, the indication information indicates the power allocation granularity corresponding to the first signal, including: the indication information indicates the signal type of the first signal, and the signal type of the first signal and the power allocation granularity corresponding to the first signal have a correlation relationship. The signal type of the first signal includes at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

[0292] Optionally, when the frequency domain resource unit is a resource block, if the number of resource blocks occupied by the first signal is greater than or equal to a fifth value, the power allocation granularity corresponding to the first signal is 2 resource blocks; if the number of resource blocks occupied by the first signal is less than the fifth value and greater than or equal to a sixth value, the power allocation granularity corresponding to the first signal is 1 resource block; if the number of resource blocks occupied by the first signal is less than the sixth value and greater than or equal to a seventh value, the power allocation granularity corresponding to the first signal is 0.5 resource block; and if the number of resource blocks occupied by the first signal is less than the seventh value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

[0293] Optionally, in the case that the signal type of the first signal is a signal carried in a data channel or a control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; in the case that the signal type of the first signal is a reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; in the case that the signal type of the first signal is a reference signal and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

[0294] All the related contents of each step involved in the method embodiments can be referred to the function description of the corresponding function module, and will not be repeated here.

[0295] In the present application, the communication apparatus 120 can be presented in the form of integrated division of each function module. The "module" here can refer to a specific application-specific integrated circuit (ASIC), a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0296] In some embodiments, when the communication apparatus 120 in FIG. 12 is a chip or a chip system, the function / implementation process of the transceiver module 1202 can be implemented through the input / output interface (or communication interface) of the chip or chip system, and the function / implementation process of the processing module 1201 can be implemented through the processor (or processing circuit) of the chip or chip system.

[0297] Since the communication apparatus 120 provided by the present embodiment can execute the above method, the technical effects it can obtain can be referred to the above method embodiments, which will not be repeated here.

[0298] As a possible product form, the RAN node or terminal described in the embodiments of the present application can be implemented using one or more field programmable gate arrays (FPGAs), programmable logic devices (PLDs), controllers, state machines, gate logic, discrete hardware components, any other suitable circuits, or any combination of circuits capable of performing the various functions described throughout this application.

[0299] As another possible product form, the RAN node or the terminal described in the embodiments of the present application can be implemented by a general bus architecture. For ease of illustration, refer to FIG. 13, which is a structural schematic diagram of a communication apparatus 1300 provided by the embodiments of the present application, the communication apparatus 1300 including a processor 1301 and a transceiver 1302. The communication apparatus 1300 can be a RAN node, or a chip or chip system therein; or the communication apparatus 1300 can be a terminal, or a chip or module therein. FIG. 13 only shows the main components of the communication apparatus 1300. In addition to the processor 1301 and the transceiver 1302, the communication apparatus can further include a memory 1303, and an input / output device (not shown in the figure).

[0300] Optionally, the processor 1301 is mainly used for processing communication protocols and communication data, and controlling the whole communication apparatus, executing software programs, processing data of the software programs, so as to implement the methods provided in the above method embodiments. The memory 1303 is mainly used for storing software programs and data. The transceiver 1302 can include a radio frequency circuit and an antenna, the radio frequency circuit is mainly used for conversion between a baseband signal and a radio frequency signal, and processing of the radio frequency signal. The antenna is mainly used for transceiving a radio frequency signal in the form of an electromagnetic wave. The input / output device, such as a touch screen, a display screen, a keyboard, etc., is mainly used for receiving data input by a user and outputting data to the user.

[0301] Optionally, the processor 1301, the transceiver 1302, and the memory 1303 can be connected through a communication bus.

[0302] When the communication apparatus is powered on, the processor 1301 can read software programs in the memory 1303, execute instructions of the software programs, and process data of the software programs. When data needs to be transmitted wirelessly, the processor 1301 performs baseband processing on the data to be transmitted, and outputs a baseband signal to the radio frequency circuit, the radio frequency circuit performs radio frequency processing on the baseband signal, and transmits a radio frequency signal in the form of an electromagnetic wave through the antenna. When data is transmitted to the communication apparatus, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1301, the processor 1301 converts the baseband signal into data and processes the data.

[0303] In another implementation, the radio frequency circuit and the antenna can be arranged independently of the processor performing baseband processing, for example, in a distributed scenario, the radio frequency circuit and the antenna can be arranged remotely from the communication apparatus.

[0304] In some embodiments, in a hardware implementation, those skilled in the art can conceive that the above-mentioned communication apparatus 120 can adopt the form of the communication apparatus 1300 shown in FIG. 13.

[0305] As an example, the function / implementation process of the processing module 1201 in FIG. 12 can be implemented by invoking the computer-executed instructions stored in the memory 1303 by the processor 1301 in the communication apparatus 1300 shown in FIG. 13. The function / implementation process of the transceiver module 1202 in FIG. 12 can be implemented by the transceiver 1302 in the communication apparatus 1300 shown in FIG. 13.

[0306] As yet another possible product form, the RAN node or the terminal in the present application can adopt the constituent structure shown in FIG. 14, or include the components shown in FIG. 14. FIG. 14 is a constituent diagram of a communication apparatus 1400 provided in the present application, which can be a RAN node or a chip or system on chip in the RAN node; or can be a terminal or a module or chip or system on chip in the terminal.

[0307] As shown in FIG. 14, the communication apparatus 1400 includes at least one processor 1401, and at least one communication interface (only one communication interface 1404 is shown in FIG. 14 by way of example, and the processor 1401 is taken as an example for description). Optionally, the communication apparatus 1400 can further include a communication bus 1402 and a memory 1403.

[0308] The processor 1401 can be a general central processing unit (CPU), a general processor, a network processor (NP), a digital signal processor (DSP), a microprocessor, a microcontroller, a PLD, or any combination thereof. The processor 1401 can also be other processing devices having processing function, such as a circuit, a device, or a software module, without limitation.

[0309] The communication bus 1402 is used to connect different components in the communication apparatus 1400, so that different components can communicate. The communication bus 1402 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is shown in FIG. 14, but it does not mean that there is only one bus or only one type of bus.

[0310] The communication interface 1404 is configured to communicate with other devices or communication networks. For example, the communication interface 1404 can be a module, a circuit, a transceiver, or any device capable of implementing communication. Alternatively, the communication interface 1404 can also be an input / output interface in the processor 1401, configured to realize signal input and signal output of the processor.

[0311] The memory 1403 can be a device with a storage function, configured to store instructions and / or data. The instructions can be a computer program.

[0312] For example, the memory 1403 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions, or can be a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions, or can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM), or other optical disk storage, a magneto-optical disk storage (including a compact flash, a laser disk, an optical disk, a digital versatile disk, a Blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, etc., without limitation.

[0313] It should be noted that the memory 1403 can exist independently of the processor 1401, or can be integrated with the processor 1401. The memory 1403 can be located in the communication device 1400, or can be located outside the communication device 1400, without limitation. The processor 1401 can be configured to execute instructions stored in the memory 1403 to implement the methods provided in the embodiments described below.

[0314] Optionally, the processor 1401 and / or the memory 1403 can include an artificial intelligence (AI) module, which is configured to implement AI-related functions. The AI module can be implemented in software, hardware, or a combination of software and hardware. For example, the AI module can include a radio access network intelligent controller (RIC) module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0315] As an optional implementation, the communication apparatus 1400 can further include an output device 1405 and an input device 1406. The output device 1405 communicates with the processor 1401 and can display information in various manners. For example, the output device 1405 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, a projector, or the like. The input device 1406 communicates with the processor 1401 and can receive input of a user in various manners. For example, the input device 1406 can be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

[0316] In some embodiments, on the hardware implementation, those skilled in the art can conceive that the communication apparatus 120 shown in FIG. 12 can take the form of the communication apparatus 1400 shown in FIG. 14.

[0317] As an example, the function / implementation process of the processing module 1201 in FIG. 12 can be implemented by the processor 1401 in the communication apparatus 1400 shown in FIG. 14 invoking the computer-executable instructions stored in the memory 1403. The function / implementation process of the transceiver module 1202 in FIG. 12 can be implemented by the communication interface 1404 in the communication apparatus 1400 shown in FIG. 14.

[0318] It should be noted that the structure shown in FIG. 14 does not constitute a specific limitation on the RAN node or the terminal. For example, in some other embodiments of the present application, the RAN node or the terminal can include more or fewer components than those shown, or combine certain components, or split certain components, or different arrangement of components. The components shown can be implemented in hardware, software, or a combination of software and hardware.

[0319] In some embodiments, the embodiments of the present application also provide a communication apparatus including a processor for implementing the method in any of the above method embodiments.

[0320] As a possible implementation, the communication apparatus further includes a memory. The memory is used to save necessary computer programs and data. The computer programs can include instructions, and the processor can invoke the instructions in the computer programs stored in the memory to instruct the communication apparatus to execute the method in any of the above method embodiments. Of course, the memory can also not be in the communication apparatus.

[0321] As another possible implementation, the communication apparatus further includes an interface circuit, which is a code / data read-write interface circuit, configured to receive computer execution instructions (the computer execution instructions are stored in the memory, and can be read directly from the memory or can pass through other devices) and transmit to the processor.

[0322] As still another possible implementation, the communication apparatus further includes a communication interface, configured to communicate with a module outside the communication apparatus.

[0323] It can be understood that the communication apparatus can be a chip or a chip system, when the communication apparatus is a chip system, the communication apparatus can be composed of a chip, or can include a chip and other discrete devices, and embodiments of the present application do not make specific limitations.

[0324] The present application also provides a computer readable storage medium, which stores a computer program or instructions, and the computer program or instructions realize the functions of any of the above method embodiments when executed by a computer.

[0325] The present application also provides a computer program product, which realizes the functions of any of the above method embodiments when executed by a computer.

[0326] Those skilled in the art can understand that, for the convenience and brevity of description, the specific working processes of the above-described system, apparatus and unit can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0327] It can be understood that the system, apparatus and method described in the present application can also be implemented in other ways. For example, the apparatus embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0328] The units described as separate components can or can not be physically separate, that is, can be located in one place, or can be distributed on a plurality of network units. The components shown as units can or can not be physical units. Part or all of the units can be selected according to actual needs to achieve the purpose of the present embodiment.

[0329] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit.

[0330] In the embodiments described above, all or some of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or some of the embodiments can be implemented in the form of a computer program product storing computer program instructions. The computer program instructions are executed in a computer to implement the procedures or functions described in the embodiments of the present application. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer program instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer program instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer readable storage medium can be any available medium that can be accessed by a computer or data storage device including one or more servers, data centers, etc. integrated with the medium. The available medium can be a magnetic medium (for example, floppy disk, hard disk, magnetic tape), an optical medium (for example, DVD), or a semiconductor medium (for example, solid state drive (SSD)), etc. In the embodiments of the present application, the computer can include the device described above.

[0331] Although the present application is described herein in conjunction with various embodiments, other variations of the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from the appended claims, the disclosure and the accompanying drawings. In the claims, the word "comprising" does not exclude other components or steps, and the indefinite articles "a" or "an" do not exclude a plurality. A single processor or other unit can implement several functions of the claims. Means plus function claims are intended to cover, besides the absolute product claimed, also its equivalents falling within the scope of the claims.

[0332] Although the present application has been described in connection with the preferred embodiments thereof with reference to the specific content thereof, it will be apparent to those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present application. Accordingly, the description and drawings are to be regarded as illustrative in nature and are not to be taken as limiting the scope of the present application as defined by the appended claims. Obviously many modifications and changes can be made in the application without departing from the scope thereof. It is understood that the application is not to be limited to the specific examples set forth as examples, but that these examples are intended to cover all modifications and variations of this application.

Claims

1. A communication method characterized by comprising: The method comprises: determining a power allocation granularity corresponding to a first signal, the power allocation granularity corresponding to the first signal being one of at least two power allocation granularities, the at least two power allocation granularities comprising at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group; the first signal being a reference signal or a signal carried in a data channel or a control channel; sending indication information, the indication information indicating the power allocation granularity corresponding to the first signal.

2. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the type of the power allocation granularity corresponding to the first signal; and / or, The indication information indicates the value of the power allocation granularity corresponding to the first signal.

3. The method of claim 2, wherein, The indication information is carried in a first field; In a case where the first field is set to a first numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, In a case where the first field is set to a second numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, In a case where the first field is set to a third numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, In a case where the first field is set to a fourth numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

4. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the number of frequency domain resource units occupied by the first signal, the number of frequency domain resource units occupied by the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal.

5. The method of claim 1, wherein, The indication information indicates the power allocation granularity corresponding to the first signal, comprising: The indication information indicates the signal type of the first signal, the signal type of the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal; The signal type of the first signal comprises at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

6. The method of claim 4, wherein, The frequency domain resource unit is a resource block; In a case where the number of resource blocks occupied by the first signal is greater than or equal to a fifth numerical value, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case where the number of resource blocks occupied by the first signal is less than the fifth numerical value and greater than or equal to a sixth numerical value, the power allocation granularity corresponding to the first signal is 1 resource block; In a case where the number of resource blocks occupied by the first signal is less than the sixth numerical value and greater than or equal to a seventh numerical value, the power allocation granularity corresponding to the first signal is 0.5 resource block; In a case where the number of resource blocks occupied by the first signal is less than the seventh numerical value, the power allocation granularity corresponding to the first signal is 1 subcarrier.

7. The method of claim 5, wherein: In a case where the signal type of the first signal is the signal carried in the data channel or the control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case that the signal type of the first signal is the reference signal and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block; In a case that the signal type of the first signal is the reference signal and the first signal is used for sensing only, the power allocation granularity corresponding to the first signal is 0.5 resource block.

8. The method according to any one of claims 1 to 7, characterized in that, The method further comprises: receiving or sending the first signal according to the power allocation granularity corresponding to the first signal.

9. A communication method characterized by comprising: The method comprises: receiving indication information, the indication information indicating a power allocation granularity corresponding to a first signal, the power allocation granularity corresponding to the first signal being one of at least two power allocation granularities, the at least two power allocation granularities comprising at least one of the following: a subcarrier, a subcarrier group, a resource block, or a resource block group; the first signal being a reference signal or a signal carried in a data channel or a control channel; sending or receiving the first signal according to the indication information.

10. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a type of the power allocation granularity corresponding to the first signal; and / or, The indication information indicates a value of the power allocation granularity corresponding to the first signal.

11. The method of claim 10, wherein, The indication information is carried in a first field; In a case that the first field is set to a first numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier; or, In a case that the first field is set to a second numerical value, the type of the power allocation granularity corresponding to the first signal is a subcarrier group; or, In a case that the first field is set to a third numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block; or, In a case that the first field is set to a fourth numerical value, the type of the power allocation granularity corresponding to the first signal is a resource block group.

12. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a number of frequency domain resource units occupied by the first signal, the number of frequency domain resource units occupied by the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal.

13. The method of claim 9, wherein, The indication information indicating the power allocation granularity corresponding to the first signal comprises: The indication information indicates a signal type of the first signal, the signal type of the first signal being in a correlation relationship with the power allocation granularity corresponding to the first signal; The signal type of the first signal comprises at least one of the following: a reference signal, a signal carried in a data channel, or a signal carried in a control channel.

14. The method of claim 12, wherein, The frequency domain resource unit is a resource block; In a case that the number of resource blocks occupied by the first signal is greater than or equal to a fifth numerical value, the power allocation granularity corresponding to the first signal is 2 resource blocks; In a case that the number of resource blocks occupied by the first signal is less than the fifth numerical value and greater than or equal to a sixth numerical value, the power allocation granularity corresponding to the first signal is 1 resource block; In a case where the number of resource blocks occupied by the first signal is less than the sixth number and greater than or equal to a seventh number, the power allocation granularity corresponding to the first signal is 0.5 resource blocks. In a case where the number of resource blocks occupied by the first signal is less than the seventh number, the power allocation granularity corresponding to the first signal is 1 subcarrier.

15. The method of claim 13, wherein, In a case where the signal type of the first signal is the signal carried in the data channel or the control channel, the power allocation granularity corresponding to the first signal is 2 resource blocks. In a case where the signal type of the first signal is the reference signal, and the reference signal is used for sensing and communication, the power allocation granularity corresponding to the first signal is 1 resource block. In a case where the signal type of the first signal is the reference signal, and the first signal is dedicated for sensing, the power allocation granularity corresponding to the first signal is 0.5 resource block.

16. The method according to any one of claims 9-15, characterized in that, The transmitting or receiving the first signal according to the indication information comprises: determining the power allocation granularity corresponding to the first signal according to the indication information; transmitting or receiving the first signal according to the power allocation granularity corresponding to the first signal.

17. A communications device, characterized by The communication device comprises a module for executing the method of any one of claims 1-8, or a module for executing the method of any one of claims 9-16.

18. A communications device, characterized by The communication device comprises a processor, and the processor is configured to run a computer program or instructions to cause the communication device to execute the method of any one of claims 1-8, or to execute the method of any one of claims 9-16.

19. A computer-readable storage medium, characterized in that, A computer readable storage medium stores computer instructions or programs, and when the computer instructions or programs are run on a computer, the method of any one of claims 1-8 is executed, or the method of any one of claims 9-16 is executed.

20. A computer program product, characterised in that, The computer program product comprises computer instructions, and when part or all of the computer instructions are run on a computer, the method of any one of claims 1-8 is executed, or the method of any one of claims 9-16 is executed.

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