Reference signal sending method, reference signal receiving method, and apparatus

Abstract

The present application belongs to the technical field of communications. Disclosed are a reference signal sending method, a reference signal receiving method, and an apparatus. The reference signal sending method comprises: a network-side device sending a first reference signal to a terminal, wherein the first reference signal comprises at least one second reference signal, and the sending of the first reference signal meets at least one of the following: the number of periods of the second reference signal is a first number; the number of burst sets of the second reference signal is a second number; the number of second reference signals is a third number; and the second reference signal is sent according to a reference signal pattern. The reference signal pattern comprises at least one of the following: a reference signal pattern identifier of the second reference signal; the candidate time domain position or quantity of the second reference signal within a time unit; the time domain length of the burst set of the the second reference signal; repetition information of the second reference signal; the period of the second reference signal; and the start position, offset value, length, quantity or end position of the second reference signal or the burst set of the second reference signal in a time domain or a frequency domain.

Description

Reference signal sending method, receiving method and device

[0001] Cross-references

[0002] The present disclosure claims priority to Chinese patent application number 2024100369645 filed on January 9, 2024, entitled “Method for transmitting, method for receiving and device for reference signal”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method for sending, a method for receiving, and an apparatus for sending a reference signal. Background Art

[0004] Network energy conservation is crucial for environmental sustainability, reducing environmental impacts (such as the impact of greenhouse gas emissions), and reducing operational costs. As 5G becomes more widespread across various industries and regions, and more advanced services and applications (such as Extended Range (XR)) requiring very high data rates are widely adopted, networks are becoming denser, using more antennas, greater bandwidth, and more frequency bands. Therefore, in order to keep the environmental impact of 5G within a certain range, new solutions need to be developed to improve network energy conservation.

[0005] In related technologies, network-side devices (such as base stations) periodically send synchronization signal blocks (SSBs) to meet terminal synchronization and measurement requirements. However, periodic SSB transmission is detrimental to base stations, especially those serving as secondary cells (such as secondary cells). Therefore, how to send SSBs to achieve energy conservation in network-side devices is a technical problem that needs to be solved. Summary of the Invention

[0006] The embodiments of the present application provide a method for sending, a method for receiving, and an apparatus for sending a reference signal.

[0007] In a first aspect, a method for sending a reference signal is provided, which is performed by a network-side device. The method includes:

[0008] The network side device sends a first reference signal to the terminal; the first reference signal includes at least one second reference signal;

[0009] The sending of the first reference signal satisfies at least one of the following:

[0010] The number of cycles of the second reference signal is a first number;

[0011] The number of burst sets of the second reference signal is a second number;

[0012] The number of the second reference signals is a third number;

[0013] The second reference signal is sent according to a reference signal pattern;

[0014] The reference signal pattern includes at least one of the following:

[0015] a reference signal pattern identifier of the second reference signal;

[0016] a candidate time domain position of the second reference signal within the time unit;

[0017] the number of the second reference signals in a time unit;

[0018] a time domain length of the second reference signal burst set;

[0019] repetition information of the second reference signal;

[0020] a period of the second reference signal;

[0021] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0022] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0023] In a second aspect, a reference signal receiving method is provided, which is performed by a terminal. The method includes:

[0024] The terminal receives a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0025] The sending of the first reference signal satisfies at least one of the following:

[0026] The number of cycles of the second reference signal is a first number;

[0027] The number of burst sets of the second reference signal is a second number;

[0028] The number of the second reference signals is a third number;

[0029] The second reference signal is sent according to a reference signal pattern;

[0030] The reference signal pattern includes at least one of the following:

[0031] a candidate time domain position of the second reference signal within the time unit;

[0032] the number of the second reference signals in a time unit;

[0033] a time domain length of the second reference signal burst set;

[0034] repetition information of the second reference signal;

[0035] a period of the second reference signal;

[0036] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0037] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0038] According to a third aspect, a reference signal transmitting apparatus is provided, including:

[0039] A sending module, configured to send a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0040] The sending of the first reference signal satisfies at least one of the following:

[0041] The number of cycles of the second reference signal is a first number;

[0042] The number of burst sets of the second reference signal is a second number;

[0043] The number of the second reference signals is a third number;

[0044] The second reference signal is sent according to a reference signal pattern;

[0045] The reference signal pattern includes at least one of the following:

[0046] a reference signal pattern identifier of the second reference signal;

[0047] a candidate time domain position of the second reference signal within the time unit;

[0048] the number of the second reference signals in a time unit;

[0049] a time domain length of the second reference signal burst set;

[0050] repetition information of the second reference signal;

[0051] a period of the second reference signal;

[0052] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0053] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0054] In a fourth aspect, a reference signal receiving apparatus is provided, including:

[0055] A receiving module, configured to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0056] The sending of the first reference signal satisfies at least one of the following:

[0057] The number of cycles of the second reference signal is a first number;

[0058] The number of burst sets of the second reference signal is a second number;

[0059] The number of the second reference signals is a third number;

[0060] The second reference signal is sent according to a reference signal pattern;

[0061] The reference signal pattern includes at least one of the following:

[0062] a candidate time domain position of the second reference signal within the time unit;

[0063] the number of the second reference signals in a time unit;

[0064] a time domain length of the second reference signal burst set;

[0065] repetition information of the second reference signal;

[0066] a period of the second reference signal;

[0067] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0068] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0069] In a fifth aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0070] In a sixth aspect, a network-side device is provided, including a processor and a communication interface, wherein:

[0071] The communication interface is used to send a first reference signal to the terminal; the first reference signal includes at least one second reference signal;

[0072] The sending of the first reference signal satisfies at least one of the following:

[0073] The number of cycles of the second reference signal is a first number;

[0074] The number of burst sets of the second reference signal is a second number;

[0075] The number of the second reference signals is a third number;

[0076] The second reference signal is sent according to a reference signal pattern;

[0077] The reference signal pattern includes at least one of the following:

[0078] a reference signal pattern identifier of the second reference signal;

[0079] a candidate time domain position of the second reference signal within the time unit;

[0080] the number of the second reference signals in a time unit;

[0081] a time domain length of the second reference signal burst set;

[0082] repetition information of the second reference signal;

[0083] a period of the second reference signal;

[0084] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0085] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0086] In a seventh aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the second aspect are implemented.

[0087] In an eighth aspect, a terminal is provided, including a processor and a communication interface, wherein:

[0088] A communication interface, configured to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0089] The sending of the first reference signal satisfies at least one of the following:

[0090] The number of cycles of the second reference signal is a first number;

[0091] The number of burst sets of the second reference signal is a second number;

[0092] The number of the second reference signals is a third number;

[0093] The second reference signal is sent according to a reference signal pattern;

[0094] The reference signal pattern includes at least one of the following:

[0095] a candidate time domain position of the second reference signal within the time unit;

[0096] the number of the second reference signals in a time unit;

[0097] a time domain length of the second reference signal burst set;

[0098] repetition information of the second reference signal;

[0099] a period of the second reference signal;

[0100] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0101] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0102] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0103] In the tenth aspect, a wireless communication system is provided, comprising: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method described in the second aspect, and the network side device can be used to execute the steps of the method described in the first aspect.

[0104] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0105] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0106] In an embodiment of the present application, the network side device sends a first reference signal to the terminal. The sending of the first reference signal satisfies at least one of the aforementioned conditions, thereby realizing on-demand sending of the reference signal, reducing the power consumption of the network side device, and thus achieving network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0107] FIG1 is a schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application;

[0108] FIG2 is a schematic diagram of a flow chart of a method for transmitting a reference signal according to an embodiment of the present application;

[0109] FIG3 is one of the principle schematic diagrams of the reference signal pattern provided in an embodiment of the present application;

[0110] FIG4 is a second schematic diagram of the principle of the reference signal pattern provided in an embodiment of the present application;

[0111] FIG5 is a third schematic diagram of the principle of the reference signal pattern provided in an embodiment of the present application;

[0112] FIG6 is a fourth schematic diagram of the principle of the reference signal pattern provided in an embodiment of the present application;

[0113] FIG7 is a fifth schematic diagram of the principle of the reference signal pattern provided in an embodiment of the present application;

[0114] FIG8 is a sixth schematic diagram of the principle of the reference signal pattern provided in an embodiment of the present application;

[0115] FIG9 is a seventh schematic diagram of a principle of a reference signal pattern provided in an embodiment of the present application;

[0116] FIG10 is an eighth schematic diagram of the principle of a reference signal pattern provided in an embodiment of the present application;

[0117] FIG11 is a ninth schematic diagram of a principle of a reference signal pattern provided in an embodiment of the present application;

[0118] FIG12 is a schematic flow chart of a method for receiving a reference signal according to an embodiment of the present application;

[0119] FIG13 is a schematic structural diagram of a reference signal transmitting apparatus provided in an embodiment of the present application;

[0120] FIG14 is a schematic structural diagram of a reference signal receiving apparatus provided in an embodiment of the present application;

[0121] FIG15 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0122] FIG16 is a schematic diagram of the structure of a network side device according to an embodiment of the present application;

[0123] FIG17 is a schematic structural diagram of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0124] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0125] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0126] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0127] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0128] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0129] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.

[0130] In order to facilitate a clearer understanding of the technical solutions provided by the embodiments of the present application, some relevant knowledge is first introduced as follows.

[0131] What is known and what is unknown about the cell:

[0132] If the following conditions are met, the secondary cell (SCell) on the frequency band FR1 is known:

[0133] 1. Before receiving the SCell activation command, during a period equal to max(5*mesCycleSCell, 5*DRX cycle) in FR1:

[0134] 1-1. The terminal has sent a valid measurement report for the SCell to be activated;

[0135] 1-2. According to the specified cell identification conditions, the measured SSB still remains detectable.

[0136] Where mesCycleSCell represents the measurement cycle of the Scell; DRX refers to discontinuous reception (Discontinuous Reception);

[0137] 2. According to the specified cell identification conditions, the SSB measured during a period equal to max(5*mesCycleSCell, 5*DRX cycle) also remains detectable during the SCell activation delay.

[0138] Otherwise the SCell in FR1 is unknown.

[0139] For the first SCell activation in frequency band FR2, the SCell is known if the following conditions are met:

[0140] 1. Before the terminal receives the last activation command of the Physical Downlink Control Channel (PDCCH) Transmission Configuration Indicator (TCI), the Physical Downlink Shared Channel (PDSCH) TCI (when applicable), and the semi-persistent Channel State Information Reference Signal (CSI-RS) for Channel Quality Indicator (CQI) reporting (when applicable), the terminal supports power levels 1 / 5, which is equal to 4 seconds, and the terminal supports power levels 2 / 3 / 4, which is equal to 3 seconds:

[0141] 1-1. The terminal sends a valid L3-reference signal received power (RSRP) measurement report corresponding to the SSB index;

[0142] 1-2. The SCell activation command is received after the L3-RSRP report and no later than the time when the terminal receives the MAC-CE command for TCI activation;

[0143] 2. During the period from L3-RSRP reporting to valid CQI reporting, the reported SSB with index remains detectable according to the specified cell identification conditions, and the TCI state is selected based on one of the most recently reported SSB indices.

[0144] Otherwise, the first SCell in FR2 is unknown.

[0145] The reference signal sending method, receiving method, and apparatus provided in the embodiments of the present application are described in detail below with reference to some embodiments and their application scenarios with reference to the accompanying drawings.

[0146] FIG2 is a flow chart of a method for transmitting a reference signal according to an embodiment of the present application. The method is performed by a network-side device. As shown in FIG2 , the method includes steps 201 and 202, wherein:

[0147] Step 201: A network-side device sends a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0148] The sending of the first reference signal satisfies at least one of the following:

[0149] The number of cycles of the second reference signal is a first number;

[0150] The number of burst sets of the second reference signal is a second number;

[0151] The number of the second reference signals is a third number;

[0152] The second reference signal is sent according to a reference signal pattern;

[0153] The reference signal pattern includes at least one of the following:

[0154] a reference signal pattern identifier of the second reference signal;

[0155] a candidate time domain position of the second reference signal within the time unit;

[0156] the number of the second reference signals in a time unit;

[0157] a time domain length of the second reference signal burst set;

[0158] repetition information of the second reference signal;

[0159] a period of the second reference signal;

[0160] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0161] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0162] Optionally, the first quantity, the second quantity, and the third quantity are predefined by a protocol, or preconfigured or configured on the network side.

[0163] It should be noted that the network side equipment may include onboard network side equipment, such as a base station on a satellite, and may also include on-ground network side equipment, such as a ground base station.

[0164] Optionally, the first reference signal or the second reference signal may include at least one of a downlink reference signal, a downlink synchronization signal, a synchronization signal, an SSB burst, an SSB, and an on-demand reference signal. An on-demand reference signal is, for example, an on-demand SSB. For example, the downlink reference signal may also include at least one of a CSI-RS, a demodulation reference signal DMRS, a tracking reference signal TRS, an aperiodic TRS, a phase tracking reference signal PTRS, and the like.

[0165] It is understood that an on-demand reference signal is a reference signal sent by a network device based on network or terminal requirements. The network device can switch from a non-transmitting state to a transmitting state, or from one transmitting state to another, such as with a different transmission period, or send additional reference signals.

[0166] It is understood that the network-side device sends an SSB set, or on-demand SSB. The SSB set may include multiple periods of SSBs, multiple SSB burst sets, or multiple SSBs. The SSB pattern design within a period may contain different information, such as the SSB period value, the time domain or frequency domain position of the SSB within a period, the number of candidate transmission positions within a slot, and so on.

[0167] Optionally, the implementation manner in which the network side device sends the reference signal to the terminal may include at least one of the following:

[0168] Mode 1: The network side device sends the reference signal to the terminal on the first frequency / first carrier / first serving cell / first serving cell group / primary cell / primary cell group / primary and secondary cells.

[0169] Mode 2: The network-side device sends the reference signal to the terminal on a second frequency / second carrier / second serving cell / second serving cell group / secondary cell / secondary cell group. For example, the second carrier may be one carrier or a carrier group consisting of multiple carriers.

[0170] It can be understood that the first frequency can also be expressed as a first carrier, a first cell, a first cell group, etc.;

[0171] It can be understood that the first frequency can also be expressed as a second carrier, a second cell, a second cell group, etc.;

[0172] In an embodiment of the present application, the network side device sends a first reference signal to the terminal. The sending of the first reference signal satisfies at least one of the aforementioned conditions, thereby realizing on-demand sending of the reference signal, reducing the power consumption of the network side device, and thus achieving network energy saving.

[0173] The reference signal pattern is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or indicated by a network side device.

[0174] It should be noted that the number of cycles and the number of burst sets of the second reference signal can also be considered as one of the contents of the reference signal pattern.

[0175] Optionally, the method further includes:

[0176] The network side device sends first indication information to the terminal, where the first indication information is used to instruct the network side device to send the first reference signal;

[0177] The first indication information includes at least one of the following:

[0178] the number of cycles of the second reference signal;

[0179] the number of burst sets of the second reference signal;

[0180] the number of the second reference signals;

[0181] a reference signal pattern of the second reference signal;

[0182] The index of the second reference signal.

[0183] Optionally, the first indication information is carried by at least one of the following:

[0184] Radio Resource Control (RRC) messages;

[0185] Downlink Control Information (DCI);

[0186] Medium Access Control Control Element (MAC CE).

[0187] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0188] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency; reference signal frequency group; measurement object; measurement object group.

[0189] Specifically, the first indication information is configured by RRC, or an indication such as DCI or MAC CE sent by the network side device;

[0190] For example, a network-side device configures multiple reference signal patterns, and the network-side device indicates which reference signal pattern is currently being used.

[0191] The first indication information may be triggered per beam / per beam group / per cell / per zone / per UE / per UE group, per reference signal frequency / per reference signal frequency group / per measurement object / per measurement object group.

[0192] Optionally, different reference signal patterns have different SSB time domain positions, quantities, periods, etc.

[0193] Optionally, at least one of the number of cycles, the number of burst sets, the number, and the reference signal pattern of the second reference signal may also be predefined by a protocol, or preconfigured or configured on the network side.

[0194] It is understandable that some information in the reference signal pattern may also be predefined by the protocol, or preconfigured or configured on the network side, for example, period value, candidate time domain position, quantity, etc.

[0195] Optionally, when the second reference signal is a 15 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0196] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0197] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0198] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0199] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0200] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0201] Wherein, n is an integer greater than or equal to 0.

[0202] For example, under 15 kHz SSB, the candidate time domain position of the SSB (in the frame / subframe / slot / continuous slot containing the SSB) satisfies at least one of the following:

[0203] a) The index of the first symbol of the candidate SSB is {0, 4, 8} + 14 × n, leaving the last two symbols of the time slot corresponding to the 15 kHz subcarrier for UCI / DCI;

[0204] b) The index of the position of the first symbol of the candidate SSB is {1, 5, 9} + 14 × n, which reserves the first and last two symbols of the time slot corresponding to the 15kHz subcarrier for UCI / DCI, and the first and last two symbols of every two time slots on the 30kHz subcarrier;

[0205] c) The index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14 × n, leaving the first two symbols of the time slot corresponding to the 15 kHz subcarrier for UCI / DCI;

[0206] d) The index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28 × n, leaving two symbols before and after every two time slots corresponding to the 15 kHz subcarrier for UCI / DCI;

[0207] e) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20, 24} + 28n (corresponding to the case where 7 SSBs occupy 2 consecutive slots);

[0208] Here, n is predefined by the protocol / preconfigured by the network side device / configured by the network side device / dynamically indicated by the network side device; for example, n can only be 0, that is, only one slot SSB is sent.

[0209] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0210] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0211] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0212] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n;

[0213] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0214] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n;

[0215] Wherein, n is an integer greater than or equal to 0.

[0216] For example, under 30 kHz SSB, the candidate time domain position of the SSB (in the frame / subframe / slot / continuous slot containing the SSB) satisfies at least one of the following:

[0217] a) The index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14 × n, which reserves the first symbol of the time slot corresponding to the 15kHz subcarrier and the first two symbols of each time slot on the 30kHz subcarrier for the uplink control information UCI / DCI;

[0218] b) The index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14 × n, which reserves the last symbol of the time slot corresponding to the 15kHz subcarrier for UCI / DCI and the last two symbols of each time slot on the 30kHz subcarrier;

[0219] c) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 16, 20, 24} + 28 × n, which reserves the last two symbols of the first time slot and the first two symbols of the second time slot in every two time slots on the 30 kHz subcarrier for UCI / DCI;

[0220] d) The index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28 × n, which reserves one symbol at the beginning and one symbol at the end of the time slot corresponding to the 15 kHz subcarrier for UCI / DCI, and reserves the first two symbols of the first time slot and the last two symbols of the second time slot of every two time slots on the 30 kHz subcarrier;

[0221] e) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20, 24} + 14*2n (corresponding to the case where 7 SSBs occupy 2 consecutive slots).

[0222] Optionally, the 120kHz case can refer to the 30KHz design.

[0223] Optionally, when the second reference signal is a 60 kHz or 240 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0224] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n;

[0225] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n;

[0226] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n;

[0227] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n;

[0228] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0229] Wherein, n is an integer greater than or equal to 0.

[0230] For example, under 60 kHz SSB, the candidate time domain position of the SSB (in the frame / subframe / slot / continuous slot containing the SSB) satisfies at least one of the following (considering that it may not be necessary to reserve enough space for each possible subcarrier spacing (SCS) to send uplink and downlink control information, the 60 kHz SSB can support the following situations):

[0231] a) The index of the position of the first symbol of the candidate SSB is {4, 8, 16, 20} + 28 × n, leaving one symbol at the beginning and one symbol at the end of each time slot on a 15 kHz subcarrier, two symbols at the beginning and two symbols at the end of each time slot on a 30 kHz subcarrier, and at least two symbols at the beginning and two symbols at the end of each time slot on a 60 kHz subcarrier;

[0232] b) The index of the position of the first symbol of the candidate SSB is {4, 8, 12, 16, 20} + 28 × n, leaving one symbol at the beginning and one symbol at the end of each time slot on a 15 kHz subcarrier, two symbols at the beginning and two symbols at the end of each time slot on a 30 kHz subcarrier, and at least two symbols at the beginning and two symbols at the end of every two time slots on a 60 kHz subcarrier;

[0233] c) The index of the position of the first symbol of the candidate SSB is {4, 8, 12, 16, 20, 24} + 28 × n, which reserves the first symbol in the time slot of the 15kHz subcarrier, the first two symbols in each time slot of the 30kHz subcarrier, and the first four symbols in every two time slots of the 60kHz subcarrier for UCI / DCI;

[0234] d) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20} + 28 × n, which reserves the first two symbols in each time slot on a 30 kHz subcarrier and the first four symbols in every two time slots on a 60 kHz subcarrier for UCI / DCI;

[0235] e) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20, 24} + 28 × n (corresponding to the case where 7 SSBs occupy 2 consecutive slots).

[0236] Optionally, the 240kHz case can refer to the 60KHz design.

[0237] Optionally, when the second reference signal is a 480 kHz or 960 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0238] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n;

[0239] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n;

[0240] Wherein, n is an integer greater than or equal to 0.

[0241] For example, under 480 kHz or 960 kHz SSB, the candidate time domain position of the SSB (in the frame / subframe / slot / continuous slot containing the SSB) satisfies at least one of the following:

[0242] a) The index of the first symbol of the candidate SSB is {0, 5, 10, 15, 20} + 28 × n, leaving one symbol switching time and the last four symbols in every two slots;

[0243] b) The index of the first symbol position of the candidate SSB is {0, 5, 10} + 14 × n, leaving one symbol switching time and erasing the space used for type 0 PDCCH of two symbols. That is, the space used for sending DL / UL control information is realized by the configuration of n and is no longer configured in the slot with SSB. In this pattern, two slots will have connected SSBs;

[0244] Among them, the interval gap of beam switching needs to be considered under FR2-2. Based on conventional design, the switching time of one symbol is considered.

[0245] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate sending positions satisfies at least one of the following:

[0246] The number of the second reference signals or candidate transmission positions within one time unit is 3;

[0247] The number of the second reference signals or the candidate transmission positions within two consecutive time units is 5 or 7;

[0248] The number or candidate transmission positions of the second reference signals in a time unit is related to the reference signal pattern;

[0249] The number of the second reference signals in a time unit or the candidate sending positions is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0250] In the above implementation, the duration of sending the same number of SSBs is further reduced, because originally a maximum of 2 SSBs were sent in one time unit, but now 3 SSBs can be sent. This sending method is more conducive to power saving for network-side devices.

[0251] Optionally, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically sent within the first time window, before the first time length, or before the first time point;

[0252] Optionally, the number of periods of the second reference signal is predefined by a protocol, preconfigured by a network-side device, configured by a network-side device, or dynamically indicated by a network-side device.

[0253] For example, the first reference signal is sent for a total of P SSB cycles at a time, where the number of cycles is configured in the RRC message or indicated by the trigger signaling of the first reference signal (such as the first indication information).

[0254] Optionally, the number of the second reference signals satisfies at least one of the following:

[0255] When the first condition is met, the number of the second reference signal is 1;

[0256] When the second condition is met, the number of the second reference signals is greater than 1;

[0257] The first condition includes at least one of the following:

[0258] The first reference signal is triggered for a specific terminal;

[0259] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting of a specific beam direction;

[0260] The cell related to the first reference signal is a known cell;

[0261] The first indication information carries quasi co-location QCL information;

[0262] The first indication information indicates that the number of the second reference signal is 1;

[0263] The RRC configuration information indicates the number of the second reference signals;

[0264] The second condition includes at least one of the following:

[0265] The first reference signal is triggered for multiple terminals or is triggered by group common signaling;

[0266] The first reference signal is used for measurement reporting;

[0267] The cell related to the first reference signal is an unknown cell;

[0268] The first indication information does not carry QCL information;

[0269] The first indication information indicates that the number of the second reference signals is greater than 1.

[0270] Optionally, when the number of the second reference signal is 1, the transmission configuration indication TCI state of the first reference signal is determined by at least one of the following:

[0271] TCI status or QCL information reported by the terminal; RRC configuration information;

[0272] or,

[0273] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0274] Optionally, the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0275] For example, the second reference signal sends a total of Q SSB bursts at one time, where the number of cycles is configured in the RRC message or indicated by the trigger signaling of the second reference signal (such as the first indication information);

[0276] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0277] The second reference signal burst set is repeated within one period;

[0278] A specific reference signal in the second reference signal burst set is repeated.

[0279] For example, when the SSB period configured by RRC is long, in order to send some SSBs with shorter periods, it is possible to consider indicating only the repetition information of one SSB burst;

[0280] Specifically, 1) the second reference signal burst set is repeated within one period:

[0281] Optionally, the number of repetitions K1 is predefined by the protocol / preconfigured by the network side device / configured by the network side device / dynamically indicated by the network side device;

[0282] For example, if the SSB period is 160ms, when two repetitions are indicated, two SSB burst sets are sent in one period; optionally, the interval between the SSB burst sets is greater than the first threshold, or less than the second threshold;

[0283] 2) The specific reference signal in the second reference signal burst is repeated:

[0284] Optionally, the number of repetitions K2 is predefined by the protocol / preconfigured by the network side device / configured by the network side device / dynamically indicated by the network side device;

[0285] Optionally, the repetition of the specific SSB and the specific SSB may be continuous, for example, located at several subsequent consecutive candidate SSB positions on the SSB, or may be located after the SSB burst, for example, after the entire SSB burst is sent, the repetition of the specific SSB is sent.

[0286] Optionally, a period of the second reference signal satisfies at least one of the following:

[0287] The period of the second reference signal is A frames;

[0288] The period of the second reference signal is B half frames;

[0289] The period of the second reference signal is C time units;

[0290] The period of the second reference signal is D symbols;

[0291] A candidate position of the reference signal exists in all time units within a period of the second reference signal;

[0292] Among them, A, B, C and D are integers greater than 0, which are predefined by the protocol, or preconfigured or configured on the network side, or indicated by the network side.

[0293] For example, the current minimum SSB cycle is 5ms. From the perspective of sending the first reference signal as quickly as possible, the cycle can be further shortened, so that more SSBs can be sent in the same time, which is more conducive to power saving for network-side devices.

[0294] Among them, all time units within a period of a first reference signal have candidate positions for the second reference signal, that is, the SSB period is shortened to the same time domain length as that occupied by the SSB burst, which is more conducive to power saving of network-side devices.

[0295] Here, the method provided in the embodiments of the present application is illustrated through several specific examples.

[0296] Example 1: Interval design of on-demand SSB.

[0297] To meet DCI and UCI transmission timelines, current SSB transmissions use a time interval between two SSBs sent within a slot, or between slots containing multiple SSBs. This allows scheduling space for DCI and transmission opportunities for UCI, as shown in Figure 1 of the background technology section. However, this design does not effectively utilize base station energy conservation because the SSB transmission time within a cycle is extended. Furthermore, due to the short time interval, even if the base station is not transmitting or receiving data, it cannot quickly enter a more energy-efficient state.

[0298] On-demand SSBs were introduced to reduce network energy consumption. Consider further reducing or eliminating these time intervals, thereby shortening the transmission time for the same number of SSBs, further reducing base station energy consumption. Considering that SSBs occupy four symbols and a slot has 14 symbols, if SSBs do not span slots, one slot can accommodate three SSBs. If SSBs span slots, two slots can accommodate up to seven SSBs.

[0299] When SSB uses a 15kHz subcarrier, if you consider placing three SSBs in one slot, there are still two symbols left. You can consider the design as shown in Figure 3:

[0300] At this time, the last two symbols of the time slot corresponding to the 15kHz subcarrier are reserved for UCI / DCI transmission or scheduling. At this time, the index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14×n.

[0301] Alternatively, leaving out the first two symbols, the index of the first symbol of the candidate SSB is {2, 6, 10} + 14 × n, as shown in Figure 4;

[0302] Alternatively, leave one symbol before and after each. In this case, the index of the position of the first symbol of the candidate SSB is {1, 5, 9} + 14 × n, as shown in Figure 5;

[0303] Alternatively, every two slots form a group, with the first two symbols reserved for the first slot and the second two symbols reserved for the second slot. In this case, the index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28 × n;

[0304] Finally, if both slots are full, 7 SSBs can be sent. At this time, the index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20, 24} + 28 × n.

[0305] When SSB uses a 30kHz subcarrier:

[0306] The first method is to reserve the first two symbols of 30kHz in each slot. However, for the 15kHz subcarrier, only the first symbol is reserved. In this case, the index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14 × n, as shown in Figure 6.

[0307] The second method is to reserve the last symbol of the time slot corresponding to the 15kHz subcarrier and the last two symbols of each time slot on the 30kHz subcarrier. In this case, the index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14 × n, as shown in Figure 7;

[0308] The third method is to reserve the last two symbols of the first time slot and the first two symbols of the second time slot in every two time slots on the 30kHz subcarrier. In this case, the index of the position of the first symbol of the candidate SSB is {0, 4, 8, 16, 20, 24} + 28 × n, as shown in Figure 8;

[0309] The fourth option is to reserve one symbol at the beginning and end of the time slot corresponding to the 15kHz subcarrier, and the first two symbols of the first time slot and the last two symbols of the second time slot in every two time slots on the 30kHz subcarrier. In this case, the index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28 × n, as shown in Figure 9;

[0310] Finally, 7 SSBs occupy 2 slots, and the position index is the same as 15kHz.

[0311] When SSB uses a 60kHz subcarrier:

[0312] The first method is to set the index of the first symbol of the candidate SSB to {4, 8, 16, 20} + 28 × n. The purpose is to reserve one symbol at the beginning and one symbol at the end of each time slot on the 15kHz subcarrier, two symbols at the beginning and two symbols at the end of each time slot on the 30kHz subcarrier, and at least two symbols at the beginning and two symbols at the end of each time slot on the 60kHz subcarrier, as shown in Figure 10.

[0313] The second method is to set the index of the first symbol of the candidate SSB to {4, 8, 12, 16, 20} + 28 × n. The purpose is to reserve one symbol at the beginning and one symbol at the end of each time slot on the 15kHz subcarrier, two symbols at the beginning and two symbols at the end of each time slot on the 30kHz subcarrier, and at least two symbols at the beginning and two symbols at the end of every two time slots on the 60kHz subcarrier, as shown in Figure 11.

[0314] The third method is to set the index of the first symbol of the candidate SSB to be {4, 8, 12, 16, 20, 24} + 28 × n, leaving out the first two symbols in each time slot on the 30kHz subcarrier and the first four symbols in every two time slots on the 60kHz subcarrier.

[0315] The fourth method is to set the index of the position of the first symbol of the candidate SSB to be {0, 4, 8, 12, 16, 20} + 28 × n, leaving the last two symbols in each time slot on the 30kHz subcarrier and the last four symbols in every two time slots on the 60kHz subcarrier.

[0316] When the SSB subcarrier is 120kHz, the same design as 30kHz can be considered.

[0317] When the SSB subcarrier is 240kHz, the same design as 60kHz can be considered.

[0318] When the SSB subcarriers are 480kHz and 960kHz, the current standard design leaves time for switching between SSB. From this perspective, two design options can be considered:

[0319] The first one is that the index of the position of the first symbol of the candidate SSB is {0, 5, 10, 15, 20} + 28 × n, leaving 1 symbol switching time and the last 4 symbols in every two slots.

[0320] The second type is that the index of the position of the first symbol of the candidate SSB is {0, 5, 10} + 14 × n, leaving one symbol switching time and erasing the space for type 0 PDCCH of two symbols. That is, the space for sending DL / UL control information is realized by the configuration of n and is no longer configured in the slot with SSB. In this pattern, the two slots will have connected SSBs.

[0321] Example 2: Pattern design of on-demand SSB.

[0322] The current SSB transmission pattern is relatively fixed, but the on-demand SSB pattern is designed mainly from the perspective of energy saving. At the same time, the triggering purpose may also be different, so different designs can be adopted.

[0323] An on-demand SSB may contain only one SSB cycle, or only a limited number of SSB cycles, after which it is not sent again until instructed again. The number of cycles sent is indicated by a quantity parameter, a bitmap, or a time point / duration / time window, which the terminal uses to determine which candidate locations to detect SSBs.

[0324] If an on-demand SSB is triggered for a specific UE, only the SSBs associated with that UE are transmitted within an SSB burst. This is similar to conventional technology, where a bitmap is used to indicate which SSBs within a burst are transmitted and which are not. The difference is that the specific SSBs to be transmitted may be indicated by a MAC CE or DCI. This indication can still be based on a bitmap, or it can be indicated by an SSB index or QCL information.

[0325] Example 3:

[0326] The design of the on-demand SSB pattern is mainly based on energy saving. At the same time, the triggering purpose may also be different. It is possible to consider a sending mechanism different from the SSB in related technologies, such as repetition design.

[0327] Case 1: SSB burst repetition within an SSB cycle. The number of repetitions is predefined by the protocol, preconfigured by the network device, configured by the network device, or dynamically indicated by the network device.

[0328] Case 2: Candidate SSB positions within an SSB burst can consider different repetition designs when sending SSBs.

[0329] For example, the candidate SSBs within the SSB bust are divided into multiple subsets, each of which is a repetition of another subset. For example, with 16 candidate positions, Q is introduced, where Q = 4, meaning four subsets. In this case, the SSBs transmitted are 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3. Alternatively, only a subset may be repeated, such as 0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 0, 1, 2, 3. In this case, it is necessary to indicate which subset, which SSBs, or which candidate positions are repeated, as well as the number of repetitions and the position of the repetitions. Alternatively, if the number of repetitions is not specified, the remaining candidate positions are repeated in order by default.

[0330] The repetition position may be a continuous repetition, or the repetition position may be after the SSB burst, or the repetition may be performed outside the SSB burst;

[0331] Possible configuration / instruction methods are:

[0332] Configure / indicate the number of subsets divided in sequence and / or the number of repetitions, or the repetition positions.

[0333] Configure / indicate the repeated SSB index or SSB group index, or the number of repetitions and the repetition position.

[0334] Configure / indicate the maximum SSB index or SSB group index to be repeated, or the number of repetitions or the repetition position. For example, if SSB index 7 is indicated, SSB inde170 to 7 will all be repeated.

[0335] Example 4:

[0336] On demand SSB may be that the network side device sends SSB only when triggered by the terminal. Another possibility is that the network side device switches from a state of not sending SSB to a state of sending SSB. Another possibility is that the sending cycle of SSB is changed.

[0337] There are two possible locations for sending On Demand SSB:

[0338] The first is flexible sending, which is determined according to the instructions of the network side device or in combination with the request of the terminal.

[0339] Second, it is sent at a preconfigured timing / position. This means that the network-side device preconfigures candidate timings / positions for on-demand SSB transmission, for example, using a bitmap indicator or determining a starting timing / position based on the Direct Frame Number (DFN) / System Frame Number (SFN) index + symbol index. This timing / position is then repeated at a preconfigured period, representing the candidate on-demand SSB transmission timings / positions. When an on-demand SSB is transmitted, it is always sent at certain timings / positions within the candidate timings / positions.

[0340] When a network device begins sending on-demand SSBs, one possibility is to repeat the transmission N times, for example, four times, according to a certain SSB period, such as 80ms. Another possibility is to gradually increase the SSB transmission period, which saves power while allowing the terminal to maintain synchronization through SSBs as much as possible. For example, the network device begins sending SSBs, first sending them twice with a 20ms period. When sending the SSB for the third or fourth time, the interval between the previous SSB and the previous SSB becomes 40ms, which is equivalent to switching the SSB period to 40ms. Then, according to the same principle, the SSB period is switched to 80ms until it is sent twice with the configured maximum SSB period. Then, the SSB transmission stops, or the SSB transmission continues with the maximum SSB period, such as 640ms.

[0341] Optionally, the on-demand SSB in the above specific example may also be expressed as the aforementioned first reference signal or second reference signal.

[0342] FIG12 is a schematic flow chart of a method for receiving a reference signal according to an embodiment of the present application. The method is executed by a terminal. As shown in FIG12 , the method includes:

[0343] Step 1201: The terminal receives a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0344] The sending of the first reference signal satisfies at least one of the following:

[0345] The number of cycles of the second reference signal is a first number;

[0346] The number of burst sets of the second reference signal is a second number;

[0347] The number of the second reference signals is a third number;

[0348] The second reference signal is sent according to a reference signal pattern;

[0349] The reference signal pattern includes at least one of the following:

[0350] a candidate time domain position of the second reference signal within the time unit;

[0351] the number of the second reference signals in a time unit;

[0352] a time domain length of the second reference signal burst set;

[0353] repetition information of the second reference signal;

[0354] a period of the second reference signal;

[0355] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0356] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0357] Optionally, the reference signal pattern is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or indicated by a network side device.

[0358] Optionally, the method further includes:

[0359] The terminal receives first indication information sent by the network side device, where the first indication information is used to instruct the network side device to send the first reference signal;

[0360] The first indication information includes at least one of the following:

[0361] the number of cycles of the second reference signal;

[0362] the number of burst sets of the second reference signal;

[0363] the number of the second reference signals;

[0364] a reference signal pattern of the second reference signal;

[0365] The index of the second reference signal.

[0366] Optionally, the first indication information is carried by at least one of the following:

[0367] Radio Resource Control (RRC);

[0368] Downlink control information DCI;

[0369] Medium Access Control Unit MAC CE.

[0370] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0371] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency; reference signal frequency group; measurement object; measurement object group.

[0372] Optionally, when the second reference signal is a 15 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0373] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0374] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0375] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0376] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0377] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0378] Wherein, n is an integer greater than or equal to 0.

[0379] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0380] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0381] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0382] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n;

[0383] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0384] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n;

[0385] Wherein, n is an integer greater than or equal to 0.

[0386] Optionally, when the second reference signal is a 60 kHz or 240 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0387] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n;

[0388] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n;

[0389] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n;

[0390] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n;

[0391] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0392] Wherein, n is an integer greater than or equal to 0.

[0393] Optionally, when the second reference signal is a 480 kHz or 960 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0394] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n;

[0395] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n;

[0396] Wherein, n is an integer greater than or equal to 0.

[0397] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate sending positions satisfies at least one of the following:

[0398] The number of the second reference signals or candidate transmission positions within one time unit is 3;

[0399] The number of the second reference signals or the candidate transmission positions within two consecutive time units is 5 or 7;

[0400] The number or candidate transmission positions of the second reference signals in a time unit is related to the reference signal pattern;

[0401] The number of the second reference signals in a time unit or the candidate sending positions is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0402] Optionally, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically sent within the first time window, before the first time length, or before the first time point;

[0403] The number of periods of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0404] Optionally, the number of the second reference signals satisfies at least one of the following:

[0405] When the first condition is met, the number of the second reference signal is 1;

[0406] When the second condition is met, the number of the second reference signals is greater than 1;

[0407] The first condition includes at least one of the following:

[0408] The first reference signal is triggered for a specific terminal;

[0409] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting of a specific beam direction;

[0410] The cell related to the first reference signal is a known cell;

[0411] The first indication information carries quasi co-location QCL information;

[0412] The first indication information indicates that the number of the second reference signal is 1;

[0413] The RRC configuration information indicates the number of the second reference signals;

[0414] The second condition includes at least one of the following:

[0415] The first reference signal is triggered for multiple terminals or is triggered by group common signaling;

[0416] The first reference signal is used for measurement reporting;

[0417] The cell related to the first reference signal is an unknown cell;

[0418] The first indication information does not carry QCL information;

[0419] The first indication information indicates that the number of the second reference signals is greater than 1.

[0420] Optionally, when the number of the second reference signal is 1, the transmission configuration indication TCI state of the first reference signal is determined by at least one of the following:

[0421] TCI status or QCL information reported by the terminal; RRC configuration information;

[0422] or,

[0423] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0424] Optionally, the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0425] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0426] The second reference signal burst set is repeated within one period;

[0427] A specific reference signal in the second reference signal burst set is repeated.

[0428] Optionally, a period of the second reference signal satisfies at least one of the following:

[0429] The period of the second reference signal is A frames;

[0430] The period of the second reference signal is B half frames;

[0431] The period of the second reference signal is C time units;

[0432] The period of the second reference signal is D symbols;

[0433] A candidate position of the second reference signal exists in all time units within a period of the second reference signal;

[0434] Wherein, A, B, C and D are integers greater than 0.

[0435] The reference signal transmission method provided in the embodiment of the present application may be performed by a reference signal transmission apparatus. In the embodiment of the present application, the reference signal transmission apparatus provided in the embodiment of the present application is described by taking the reference signal transmission method performed by the reference signal transmission apparatus as an example.

[0436] FIG13 is a schematic diagram of the structure of a reference signal transmitting apparatus provided in an embodiment of the present application. As shown in FIG13 , the reference signal transmitting apparatus 1300 is applied to a network-side device. The reference signal transmitting apparatus 1300 includes:

[0437] The sending module 1301 is configured to send a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0438] The sending of the first reference signal satisfies at least one of the following:

[0439] The number of cycles of the second reference signal is a first number;

[0440] The number of burst sets of the second reference signal is a second number;

[0441] The number of the second reference signals is a third number;

[0442] The second reference signal is sent according to a reference signal pattern;

[0443] The reference signal pattern includes at least one of the following:

[0444] a reference signal pattern identifier of the second reference signal;

[0445] a candidate time domain position of the second reference signal within the time unit;

[0446] the number of the second reference signals in a time unit;

[0447] a time domain length of the second reference signal burst set;

[0448] repetition information of the second reference signal;

[0449] a period of the second reference signal;

[0450] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0451] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0452] Optionally, the reference signal pattern is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or indicated by a network side device.

[0453] Optionally, the sending module 1301 is specifically configured to:

[0454] Sending first indication information to the terminal, where the first indication information is used to instruct the network-side device to send the first reference signal;

[0455] The first indication information includes at least one of the following:

[0456] the number of cycles of the second reference signal;

[0457] the number of burst sets of the second reference signal;

[0458] the number of the second reference signals;

[0459] a reference signal pattern of the second reference signal;

[0460] The index of the second reference signal.

[0461] Optionally, the first indication information is carried by at least one of the following:

[0462] Radio Resource Control RRC message;

[0463] Downlink control information DCI;

[0464] Medium Access Control Unit MAC CE.

[0465] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0466] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency; reference signal frequency group; measurement object; measurement object group.

[0467] Optionally, when the second reference signal is a 15 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0468] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0469] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0470] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0471] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0472] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0473] Wherein, n is an integer greater than or equal to 0.

[0474] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0475] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0476] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0477] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n;

[0478] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0479] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n;

[0480] Wherein, n is an integer greater than or equal to 0.

[0481] Optionally, when the second reference signal is a 60 kHz or 240 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0482] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n;

[0483] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n;

[0484] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n;

[0485] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n;

[0486] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0487] Wherein, n is an integer greater than or equal to 0.

[0488] Optionally, when the second reference signal is a 480 kHz or 960 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0489] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n;

[0490] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n;

[0491] Wherein, n is an integer greater than or equal to 0.

[0492] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate sending positions satisfies at least one of the following:

[0493] The number of the second reference signals or candidate transmission positions within one time unit is 3;

[0494] The number of the second reference signals or the candidate transmission positions within two consecutive time units is 5 or 7;

[0495] The number or candidate transmission positions of the second reference signals in a time unit is related to the reference signal pattern;

[0496] The number of the second reference signals in a time unit or the candidate sending positions is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0497] Optionally, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically sent within the first time window, before the first time length, or before the first time point;

[0498] The number of periods of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0499] Optionally, the number of the second reference signals satisfies at least one of the following:

[0500] When the first condition is met, the number of the second reference signal is 1;

[0501] When the second condition is met, the number of the second reference signals is greater than 1;

[0502] The first condition includes at least one of the following:

[0503] The first reference signal is triggered for a specific terminal;

[0504] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting of a specific beam direction;

[0505] The cell related to the first reference signal is a known cell;

[0506] The first indication information carries quasi co-location QCL information;

[0507] The first indication information indicates that the number of the second reference signal is 1;

[0508] The RRC configuration information indicates the number of the second reference signals;

[0509] The second condition includes at least one of the following:

[0510] The first reference signal is triggered for multiple terminals or is triggered by group common signaling;

[0511] The first reference signal is used for measurement reporting;

[0512] The cell related to the first reference signal is an unknown cell;

[0513] The first indication information does not carry QCL information;

[0514] The first indication information indicates that the number of the second reference signals is greater than 1.

[0515] Optionally, when the number of the second reference signal is 1, the transmission configuration indication TCI state of the first reference signal is determined by at least one of the following:

[0516] TCI status or QCL information reported by the terminal; RRC configuration information;

[0517] or,

[0518] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0519] Optionally, the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0520] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0521] The second reference signal burst set is repeated within one period;

[0522] A specific reference signal in the second reference signal burst set is repeated.

[0523] Optionally, a period of the second reference signal satisfies at least one of the following:

[0524] The period of the second reference signal is A frames;

[0525] The period of the second reference signal is B half frames;

[0526] The period of the second reference signal is C time units;

[0527] The period of the second reference signal is D symbols;

[0528] A candidate position of the second reference signal exists in all time units within a period of the second reference signal;

[0529] Wherein, A, B, C and D are integers greater than 0.

[0530] The reference signal transmitting device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device, or a device other than a network-side device. For example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above. Other devices can include servers, network attached storage (NAS), etc., and are not specifically limited in the embodiments of the present application.

[0531] The reference signal sending device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment shown in Figure 2 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0532] FIG14 is a schematic structural diagram of a reference signal receiving apparatus provided in an embodiment of the present application. As shown in FIG14 , the reference signal receiving apparatus 1400 is applied to a terminal. The reference signal receiving apparatus 1400 includes:

[0533] The receiving module 1401 is configured to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0534] The sending of the first reference signal satisfies at least one of the following:

[0535] The number of cycles of the second reference signal is a first number;

[0536] The number of burst sets of the second reference signal is a second number;

[0537] The number of the second reference signals is a third number;

[0538] The second reference signal is sent according to a reference signal pattern;

[0539] The reference signal pattern includes at least one of the following:

[0540] a candidate time domain position of the second reference signal within the time unit;

[0541] the number of the second reference signals in a time unit;

[0542] a time domain length of the second reference signal burst set;

[0543] repetition information of the second reference signal;

[0544] a period of the second reference signal;

[0545] the starting position, offset value, length, number or ending position of the second reference signal in the time domain;

[0546] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain.

[0547] Optionally, the reference signal pattern is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or indicated by a network side device.

[0548] Optionally, the receiving module 1401 is further configured to:

[0549] receiving first indication information sent by the network-side device, where the first indication information is used to instruct the network-side device to send the first reference signal;

[0550] The first indication information includes at least one of the following:

[0551] the number of cycles of the second reference signal;

[0552] the number of burst sets of the second reference signal;

[0553] the number of the second reference signals;

[0554] a reference signal pattern of the second reference signal;

[0555] The index of the second reference signal.

[0556] Optionally, the first indication information is carried by at least one of the following:

[0557] Radio Resource Control RRC message;

[0558] Downlink control information DCI;

[0559] Medium Access Control Unit MAC CE.

[0560] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0561] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency; reference signal frequency group; measurement object; measurement object group.

[0562] Optionally, when the second reference signal is a 15 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0563] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0564] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0565] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0566] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0567] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0568] Wherein, n is an integer greater than or equal to 0.

[0569] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0570] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0571] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0572] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n;

[0573] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0574] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n;

[0575] Wherein, n is an integer greater than or equal to 0.

[0576] Optionally, when the second reference signal is a 60 kHz or 240 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0577] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n;

[0578] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n;

[0579] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n;

[0580] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n;

[0581] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0582] Wherein, n is an integer greater than or equal to 0.

[0583] Optionally, when the second reference signal is a 480 kHz or 960 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0584] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n;

[0585] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n;

[0586] Wherein, n is an integer greater than or equal to 0.

[0587] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate sending positions satisfies at least one of the following:

[0588] The number of the second reference signals or candidate transmission positions within one time unit is 3;

[0589] The number of the second reference signals or the candidate transmission positions within two consecutive time units is 5 or 7;

[0590] The number or candidate transmission positions of the second reference signals in a time unit is related to the reference signal pattern;

[0591] The number of the second reference signals in a time unit or the candidate sending positions is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0592] Optionally, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically sent within the first time window, before the first time length, or before the first time point;

[0593] The number of periods of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0594] Optionally, the number of the second reference signals satisfies at least one of the following:

[0595] When the first condition is met, the number of the second reference signal is 1;

[0596] When the second condition is met, the number of the second reference signals is greater than 1;

[0597] The first condition includes at least one of the following:

[0598] The first reference signal is triggered for a specific terminal;

[0599] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting of a specific beam direction;

[0600] The cell related to the first reference signal is a known cell;

[0601] The first indication information carries quasi co-location QCL information;

[0602] The first indication information indicates that the number of the second reference signal is 1;

[0603] The RRC configuration information indicates the number of the second reference signals;

[0604] The second condition includes at least one of the following:

[0605] The first reference signal is triggered for multiple terminals or is triggered by group common signaling;

[0606] The first reference signal is used for measurement reporting;

[0607] The cell related to the first reference signal is an unknown cell;

[0608] The first indication information does not carry QCL information;

[0609] The first indication information indicates that the number of the second reference signals is greater than 1.

[0610] Optionally, when the number of the second reference signal is 1, the transmission configuration indication TCI state of the first reference signal is determined by at least one of the following:

[0611] TCI status or QCL information reported by the terminal; RRC configuration information;

[0612] or,

[0613] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0614] Optionally, the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0615] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0616] The second reference signal burst set is repeated within one period;

[0617] A specific reference signal in the second reference signal burst set is repeated.

[0618] Optionally, a period of the second reference signal satisfies at least one of the following:

[0619] The period of the second reference signal is A frames;

[0620] The period of the second reference signal is B half frames;

[0621] The period of the second reference signal is C time units;

[0622] The period of the second reference signal is D symbols;

[0623] A candidate position of the second reference signal exists in all time units within a period of the second reference signal;

[0624] Wherein, A, B, C and D are integers greater than 0.

[0625] The on-demand reference signal receiving device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal or other device other than a terminal. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and other devices can include servers, network attached storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0626] The on-demand reference signal receiving device provided in the embodiment of the present application can implement the various processes implemented in the method embodiment shown in Figure 12 and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0627] As shown in Figure 15, an embodiment of the present application further provides a communication device 1500, including a processor 1501 and a memory 1502. The memory 1502 stores a program or instruction that can be run on the processor 1501. For example, when the communication device 1500 is a terminal, the program or instruction, when executed by the processor 1501, implements the various steps of the above-mentioned method embodiment and can achieve the same technical effect. When the communication device 1500 is a network-side device, the program or instruction, when executed by the processor 1501, implements the various steps of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0628] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG2 . This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0629] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 16, network-side device 1600 includes an antenna 161, a radio frequency device 162, a baseband device 163, a processor 164, and a memory 165. Antenna 161 is connected to radio frequency device 162. In the uplink direction, radio frequency device 162 receives information via antenna 161 and sends the received information to baseband device 163 for processing. In the downlink direction, baseband device 163 processes the information to be transmitted and sends it to radio frequency device 162. Radio frequency device 162 processes the received information and then sends it through antenna 161.

[0630] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 163 , which includes a baseband processor.

[0631] The baseband device 163 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 16, one of the chips is, for example, a baseband processor, which is connected to the memory 165 through a bus interface to call the program in the memory 165 and execute the network device operations shown in the above method embodiment.

[0632] The network side device may further include a network interface 166 , which is, for example, a Common Public Radio Interface (CPRI).

[0633] Specifically, the network side device 1600 of the embodiment of the present application also includes: instructions or programs stored in the memory 165 and executable on the processor 164. The processor 164 calls the instructions or programs in the memory 165 to execute the methods of execution of each module shown in FIG13 and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0634] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG12 . This terminal embodiment corresponds to the aforementioned terminal-side method embodiment, and each implementation process and implementation method of the aforementioned method embodiment is applicable to this terminal embodiment and can achieve the same technical effects. Specifically, FIG17 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0635] The terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709 and at least some of the components of the processor 1710.

[0636] Those skilled in the art will appreciate that the terminal 1700 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1710 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG17 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0637] It should be understood that in an embodiment of the present application, the input unit 1704 may include a graphics processing unit (GPU) 17041 and a microphone 17042, and the graphics processor 17041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1707 includes a touch panel 17071 and at least one of other input devices 17072. The touch panel 17071 is also called a touch screen. The touch panel 17071 may include two parts: a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0638] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1701 may transmit the data to the processor 1710 for processing. Furthermore, the RF unit 1701 may send uplink data to the network-side device. Typically, the RF unit 1701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0639] Memory 1709 can be used to store software programs or instructions and various data. Memory 1709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, memory 1709 may include volatile memory or non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0640] Processor 1710 may include one or more processing units. Optionally, processor 1710 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1710.

[0641] The radio frequency unit 1701 is configured to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0642] The sending of the first reference signal satisfies at least one of the following:

[0643] The number of cycles of the second reference signal is a first number;

[0644] The number of burst sets of the second reference signal is a second number;

[0645] The number of the second reference signals is a third number;

[0646] The second reference signal is sent according to a reference signal pattern;

[0647] The reference signal pattern includes at least one of the following:

[0648] a candidate time domain position of the second reference signal within the time unit;

[0649] the number of the second reference signals in a time unit;

[0650] a time domain length of the second reference signal burst set;

[0651] repetition information of the second reference signal;

[0652] a period of the second reference signal;

[0653] the starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0654] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0655] Optionally, the reference signal pattern is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or indicated by a network side device.

[0656] Optionally, the radio frequency unit 1701 is further configured to:

[0657] receiving first indication information sent by the network-side device, where the first indication information is used to instruct the network-side device to send the first reference signal;

[0658] The first indication information includes at least one of the following:

[0659] the number of cycles of the second reference signal;

[0660] the number of burst sets of the second reference signal;

[0661] the number of the second reference signals;

[0662] a reference signal pattern of the second reference signal;

[0663] The index of the second reference signal.

[0664] Optionally, the first indication information is carried by at least one of the following:

[0665] Radio Resource Control RRC message;

[0666] Downlink control information DCI;

[0667] Medium Access Control Unit MAC CE.

[0668] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0669] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency; reference signal frequency group; measurement object; measurement object group.

[0670] Optionally, when the second reference signal is a 15 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0671] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0672] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0673] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0674] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0675] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0676] Wherein, n is an integer greater than or equal to 0.

[0677] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0678] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0679] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0680] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n;

[0681] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0682] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n;

[0683] Wherein, n is an integer greater than or equal to 0.

[0684] Optionally, when the second reference signal is a 60 kHz or 240 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0685] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n;

[0686] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n;

[0687] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n;

[0688] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n;

[0689] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n;

[0690] Wherein, n is an integer greater than or equal to 0.

[0691] Optionally, when the second reference signal is a 480 kHz or 960 kHz reference signal, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0692] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n;

[0693] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n;

[0694] Wherein, n is an integer greater than or equal to 0.

[0695] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate sending positions satisfies at least one of the following:

[0696] The number of the second reference signals or candidate transmission positions within one time unit is 3;

[0697] The number of the second reference signals or the candidate transmission positions within two consecutive time units is 5 or 7;

[0698] The number or candidate transmission positions of the second reference signals in a time unit is related to the reference signal pattern;

[0699] The number of the second reference signals in a time unit or the candidate sending positions is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0700] Optionally, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically sent within the first time window, before the first time length, or before the first time point;

[0701] The number of periods of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0702] Optionally, the number of the second reference signals satisfies at least one of the following:

[0703] When the first condition is met, the number of the second reference signal is 1;

[0704] When the second condition is met, the number of the second reference signals is greater than 1;

[0705] The first condition includes at least one of the following:

[0706] The first reference signal is triggered for a specific terminal;

[0707] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting of a specific beam direction;

[0708] The cell related to the first reference signal is a known cell;

[0709] The first indication information carries quasi co-location QCL information;

[0710] The first indication information indicates that the number of the second reference signal is 1;

[0711] The RRC configuration information indicates the number of the second reference signals;

[0712] The second condition includes at least one of the following:

[0713] The first reference signal is triggered for multiple terminals or is triggered by group common signaling;

[0714] The first reference signal is used for measurement reporting;

[0715] The cell related to the first reference signal is an unknown cell;

[0716] The first indication information does not carry QCL information;

[0717] The first indication information indicates that the number of the second reference signals is greater than 1.

[0718] Optionally, when the number of the second reference signal is 1, the transmission configuration indication TCI state of the first reference signal is determined by at least one of the following:

[0719] TCI status or QCL information reported by the terminal; RRC configuration information;

[0720] or,

[0721] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0722] Optionally, the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network side device, configured by a network side device, or dynamically indicated by a network side device.

[0723] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0724] The second reference signal burst set is repeated within one period;

[0725] A specific reference signal in the second reference signal burst set is repeated.

[0726] Optionally, a period of the second reference signal satisfies at least one of the following:

[0727] The period of the second reference signal is A frames;

[0728] The period of the second reference signal is B half frames;

[0729] The period of the second reference signal is C time units;

[0730] The period of the second reference signal is D symbols;

[0731] A candidate position of the second reference signal exists in all time units within a period of the second reference signal;

[0732] Wherein, A, B, C and D are integers greater than 0.

[0733] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment shown in Figure 2, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0734] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0735] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0736] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0737] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0738] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0739] An embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device, wherein the terminal can be used to execute the steps of an embodiment of a method for receiving a reference signal, and the network-side device can be used to execute the steps of an embodiment of a method for sending a reference signal.

[0740] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0741] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0742] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for transmitting a reference signal, wherein, Including: The network-side device sends a first reference signal to the terminal; The first reference signal includes at least one second reference signal; The transmission of the second reference signal satisfies at least one of the following: The number of periods of the second reference signal is a first number; The number of burst sets of the second reference signal is a second number; The number of the second reference signals is a third number; The second reference signal is transmitted according to a reference signal pattern; Wherein, the reference signal pattern includes at least one of the following: The reference signal pattern identifier of the second reference signal; The candidate time-domain positions of the second reference signal within a time unit; The number of the second reference signals within a time unit; The time-domain length of the second reference signal burst set; The repetition information of the second reference signal; The period of the second reference signal; The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain; The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain or frequency domain.

2. The method according to claim 1, wherein, The reference signal pattern is predefined by a protocol, preconfigured by the network-side device, configured by the network-side device, or indicated by the network-side device.

3. The method according to claim 1 or 2, wherein, The method further includes: The network-side device sends first indication information to the terminal, and the first indication information is used to indicate that the network-side device sends the first reference signal; The first indication information includes at least one of the following: The number of periods of the second reference signal; The number of burst sets of the second reference signal; The number of the second reference signals; The reference signal pattern of the second reference signal; The index of the second reference signal.

4. The method according to claim 3, wherein, The first indication information is carried by at least one of the following: Radio Resource Control (RRC) message; Downlink Control Information (DCI); Medium Access Control Element (MAC CE).

5. The method according to claim 3 or 4, wherein, The first indication information is indicated according to at least one of the following granularities: Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

6. The method according to any one of claims 1-5, wherein, When the second reference signal is a 15 kHz reference signal, the candidate time-domain positions of the second reference signal satisfy at least one of the following: The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {1, 5, 9} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n; The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 12, 16, 20, 24} + 28×n; Wherein, n is an integer greater than or equal to 0.

7. The method according to any one of claims 1-5, wherein, when the second reference signal is a reference signal of 30 kHz or 120 kHz, the candidate time domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n; the index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n; the index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24}+28×n; the index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n; the index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n; wherein, n is an integer greater than or equal to 0.

8. The method according to any one of claims 1-5, wherein, when the second reference signal is a reference signal of 60 kHz or 240 kHz, the candidate time domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20}+28×n; the index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20}+28×n; the index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24}+28×n; the index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20}+28×n; the index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20, 24}+28×n; wherein, n is an integer greater than or equal to 0.

9. The method according to any one of claims 1-5, wherein, when the second reference signal is a reference signal of 480 kHz or 960 kHz, the candidate time domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20}+28×n; the index of the position of the first symbol of the candidate time domain position is {0, 5, 10}+14×n; wherein, n is an integer greater than or equal to 0.

10. The method according to any one of claims 1-9, wherein, the number or candidate transmission positions of the second reference signal in the time unit in the reference signal pattern satisfy at least one of the following: the number or candidate transmission positions of the second reference signal in 1 time unit is 3; the number or candidate transmission positions of the second reference signal in 2 consecutive time units is 5 or 7; the number or candidate transmission positions of the second reference signal in the time unit is related to the reference signal pattern; the number or candidate transmission positions of the second reference signal in the time unit is pre-defined by the protocol, pre-configured by the network side device or configured by the network side device.

11. According to the method described in any one of claims 1-10, wherein, the first indication information is further used to indicate a first time window, a first time length, or a first time point, and the second reference signal is periodically transmitted within the first time window, before the first time length, or before the first time point; the number of periods of the second reference signal is predefined by the protocol, preconfigured by the network device, configured by the network device, or dynamically indicated by the network device.

12. According to the method described in any one of claims 1-11, wherein, the number of the second reference signals satisfies at least one of the following: when the first condition is satisfied, the number of the second reference signals is 1; when the second condition is satisfied, the number of the second reference signals is greater than 1; wherein, the first condition includes at least one of the following: the first reference signal is triggered for a specific terminal; the first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction; the cell related to the first reference signal is a known cell; the first indication information carries quasi co-location (QCL) information; the first indication information indicates that the number of the second reference signals is 1; the RRC configuration information indicates the number of the second reference signals; the second condition includes at least one of the following: the first reference signal is triggered for multiple terminals, or triggered by group common signaling; the first reference signal is used for measurement reporting; the cell related to the first reference signal is an unknown cell; the first indication information does not carry QCL information; the first indication information indicates that the number of the second reference signals is greater than 1.

13. According to the method described in claim 12, wherein, in the case where the number of the second reference signals is 1, the transmission configuration indication (TCI) state of the first reference signal is determined by at least one of the following: the TCI state or QCL information reported by the terminal; the RRC configuration information; or, the TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

14. According to the method described in any one of claims 1-13, wherein, the number of burst sets of the second reference signal is predefined by the protocol, preconfigured by the network device, configured by the network device, or dynamically indicated by the network device.

15. According to the method described in any one of claims 1-14, wherein, the repetition information of the second reference signal includes at least one of the following: the burst set of the second reference signal is repeated within one period; a specific reference signal in the burst set of the second reference signal is repeated.

16. According to the method described in any one of claims 1-15, wherein, the period of the second reference signal satisfies at least one of the following: the period of the second reference signal is A frames; the period of the second reference signal is B half-frames; the period of the second reference signal is C time units; the period of the second reference signal is D symbols; there are candidate positions of the second reference signal on all time units within one period of one second reference signal; wherein, A, B, C, and D are integers greater than 0.

17. A method for receiving a reference signal, wherein, including: The terminal receives a first reference signal sent by a network-side device; The first reference signal includes at least one second reference signal; The transmission of the first reference signal satisfies at least one of the following: The number of periods of the second reference signal is a first number; The number of burst sets of the second reference signal is a second number; The number of the second reference signals is a third number; The second reference signal is transmitted according to a reference signal pattern; Wherein, the reference signal pattern includes at least one of the following: The candidate time-domain positions of the second reference signal within a time unit; The number of the second reference signals within a time unit; The time-domain length of the second reference signal burst set; The repetition information of the second reference signal; The period of the second reference signal; The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain; The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain or frequency domain.

18. The method according to claim 17, wherein, The reference signal pattern is predefined by a protocol, preconfigured by a network-side device, configured by a network-side device, or indicated by a network-side device.

19. The method according to claim 17 or 18, wherein The method further includes: The terminal receives first indication information sent by the network-side device, and the first indication information is used to indicate that the network-side device sends the first reference signal; The first indication information includes at least one of the following: The number of periods of the second reference signal; The number of burst sets of the second reference signal; The number of the second reference signals; The reference signal pattern of the second reference signal; The index of the second reference signal.

20. The method according to claim 19, wherein, The first indication information is carried by at least one of the following: Radio Resource Control (RRC) message; Downlink Control Information (DCI); Medium Access Control Element (MAC CE).

21. The method according to claim 19 or 20, wherein, The first indication information is indicated according to at least one of the following granularities: Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

22. The method according to any one of claims 17-21, wherein, When the second reference signal is a 15 kHz reference signal, the candidate time-domain positions of the second reference signal satisfy at least one of the following: The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {1, 5, 9} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n; The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n; The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 12, 16, 20, 24} + 28×n; Wherein, n is an integer greater than or equal to 0.

23. The method according to any one of claims 17 - 21, wherein, when the second reference signal is a reference signal of 30 kHz or 120 kHz, the candidate time - domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time - domain position is {2, 6, 10}+14×n; the index of the position of the first symbol of the candidate time - domain position is {0, 4, 8}+14×n; the index of the position of the first symbol of the candidate time - domain position is {0, 4, 8, 16, 20, 24}+28×n; the index of the position of the first symbol of the candidate time - domain position is {2, 6, 10, 14, 18, 22}+28×n; the index of the position of the first symbol of the candidate time - domain position is {0, 4, 8, 12, 16, 20, 24}+14×2n; wherein, n is an integer greater than or equal to 0.

24. The method according to any one of claims 17 - 21, wherein, when the second reference signal is a reference signal of 60 kHz or 240 kHz, the candidate time - domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time - domain position is {4, 8, 16, 20}+28×n; the index of the position of the first symbol of the candidate time - domain position is {4, 8, 12, 16, 20}+28×n; the index of the position of the first symbol of the candidate time - domain position is {4, 8, 12, 16, 20, 24}+28×n; the index of the position of the first symbol of the candidate time - domain position is {0, 4, 8, 12, 16, 20}+28×n; the index of the position of the first symbol of the candidate time - domain position is {0, 4, 8, 12, 16, 20, 24}+28×n; wherein, n is an integer greater than or equal to 0.

25. The method according to any one of claims 17 - 21, wherein, when the second reference signal is a reference signal of 480 kHz or 960 kHz, the candidate time - domain positions of the second reference signal satisfy at least one of the following: the index of the position of the first symbol of the candidate time - domain position is {0, 5, 10, 15, 20}+28×n; the index of the position of the first symbol of the candidate time - domain position is {0, 5, 10}+14×n; wherein, n is an integer greater than or equal to 0.

26. The method according to any one of claims 17 - 25, wherein, the number of the second reference signals in the time unit or the candidate transmission positions in the reference signal pattern satisfy at least one of the following: the number of the second reference signals or the candidate transmission positions in 1 time unit is 3; the number of the second reference signals or the candidate transmission positions in 2 consecutive time units is 5 or 7; the number of the second reference signals in the time unit or the candidate transmission positions is related to the reference signal pattern; the number of the second reference signals in the time unit or the candidate transmission positions is predefined by the protocol, pre - configured by the network - side device or configured by the network - side device.

27. The method according to any one of claims 17-26, wherein, the first indication information is further used to indicate a first time window, a first time length or a first time point, and the second reference signal is periodically transmitted within the first time window, before the first time length or before the first time point; the number of periods of the second reference signal is pre-defined by the protocol, pre-configured by the network device, configured by the network device or dynamically indicated by the network device.

28. The method according to any one of claims 17-27, wherein, the number of the second reference signals satisfies at least one of the following: when the first condition is satisfied, the number of the second reference signals is 1; when the second condition is satisfied, the number of the second reference signals is greater than 1; wherein, the first condition includes at least one of the following: the first reference signal is triggered for a specific terminal; the first reference signal is used for at least one of synchronization, cell activation, cell deactivation or measurement reporting in a specific beam direction; the cell associated with the first reference signal is a known cell; the quasi-co-location (QCL) information is carried in the first indication information; the first indication information indicates that the number of the second reference signals is 1; the RRC configuration information indicates the number of the second reference signals; the second condition includes at least one of the following: the first reference signal is triggered for multiple terminals, or is triggered by group common signaling; the first reference signal is used for measurement reporting; the cell associated with the first reference signal is an unknown cell; the QCL information is not carried in the first indication information; the first indication information indicates that the number of the second reference signals is greater than 1.

29. The method according to claim 28, wherein, in the case where the number of the second reference signals is 1, the transmission configuration indication (TCI) state of the first reference signal is determined by at least one of the following: the TCI state or QCL information reported by the terminal; the RRC configuration information; or, the TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

30. The method according to any one of claims 17-29, wherein, the number of burst sets of the second reference signal is pre-defined by the protocol, pre-configured by the network device, configured by the network device or dynamically indicated by the network device.

31. The method according to any one of claims 17-30, wherein, the repetition information of the second reference signal includes at least one of the following: the burst sets of the second reference signal are repeated within one period; specific reference signals in the burst sets of the second reference signal are repeated.

32. The method according to any one of claims 17-31, wherein, the period of the second reference signal satisfies at least one of the following: the period of the second reference signal is A frames; the period of the second reference signal is B half-frames; the period of the second reference signal is C time units; the period of the second reference signal is D symbols; there are candidate positions of the second reference signal on all time units within one period of one second reference signal; Wherein, A, B, C, and D are integers greater than 0.

33. A transmitting device for a reference signal, wherein, Including: A sending module, configured to send a first reference signal to a terminal; The first reference signal includes at least one second reference signal; The sending of the first reference signal satisfies at least one of the following: The number of periods of the second reference signal is a first number; The number of burst sets of the second reference signal is a second number; The number of the second reference signals is a third number; The second reference signal is sent according to a reference signal pattern; Wherein, the reference signal pattern includes at least one of the following: The reference signal pattern identifier of the second reference signal; The candidate time domain positions of the second reference signal within a time unit; The number of the second reference signals within a time unit; The time domain length of the second reference signal burst set; The repetition information of the second reference signal; The period of the second reference signal; The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain; The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain or frequency domain.

34. A receiving device for a reference signal, wherein, Including: A receiving module, configured to receive the first reference signal sent by a network side device; The first reference signal includes at least one second reference signal; The sending of the first reference signal satisfies at least one of the following: The number of periods of the second reference signal is a first number; The number of burst sets of the second reference signal is a second number; The number of the second reference signals is a third number; The second reference signal is sent according to a reference signal pattern; Wherein, the reference signal pattern includes at least one of the following: The candidate time domain positions of the second reference signal within a time unit; The number of the second reference signals within a time unit; The time domain length of the second reference signal burst set; The repetition information of the second reference signal; The period of the second reference signal; The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain; The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain or frequency domain.

35. A network-side device, wherein, Including a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for sending a reference signal according to any one of claims 1 to 16 are implemented.

36. A terminal, characterized in that, Including a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, the steps of the method for receiving a reference signal according to any one of claims 17 to 32 are implemented.

37. A readable storage medium, characterized in that, A program or instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method for sending a reference signal according to any one of claims 1 to 16 is implemented, or the steps of the method for receiving a reference signal according to any one of claims 17 to 32 are implemented.

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