Reference signal sending method, receiving method and device

Abstract

The invention discloses a reference signal sending method and device, and a reference signal receiving method and device, and belongs to the technical field of communication, and the method comprises the steps that network side equipment sends a first reference signal to a terminal; the first reference signal comprises at least one second reference signal; the transmission of the first reference signal meets at least one of the following items: the number of cycles 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; the reference signal pattern comprises at least one of the following items: a reference signal pattern identifier of the second reference signal; a candidate time domain position or number of the second reference signal within the time unit; the time domain length of the second reference signal burst set; repetition information of the second reference signal; a period of a second reference signal; the initial position, the offset value, the length, the number or the end position of the second reference signal or the second reference signal burst set in the time domain or the frequency domain.

Description

Technical Field

[0001] This application belongs to the field of communication technologies, and particularly relates to a method and apparatus for transmitting and receiving reference signals. Background Art

[0002] Network energy saving is of great significance for environmental sustainability, reducing environmental impacts (such as the impact of greenhouse gas emissions on the environment), and saving operating costs. As 5G becomes popular in various industries and regions, and with the wide application of more advanced services and applications that require very high data rates (such as Extended Range (XR)), the network becomes more dense, using more antennas, larger bandwidths, 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 saving.

[0003] In the related art, network-side devices (such as base stations) periodically send synchronization signal blocks (synchronization signal (SS) / physical broadcast channel (PBCH) block, SSB) to meet the synchronization, measurement, and other requirements of terminals. However, the periodic transmission of SSB is not conducive to energy saving of the base station, especially the base station of the second cell (such as the secondary cell). Therefore, how to send SSB to achieve the energy saving goal of network-side devices is a technical problem to be solved. Summary of the Invention

[0004] Embodiments of this application provide a method and apparatus for transmitting and receiving reference signals.

[0005] In a first aspect, a method for transmitting a reference signal is provided, which is executed by a network-side device. The method includes:

[0006] The network-side device sends a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0007] The transmission of the first reference signal satisfies at least one of the following:

[0008] The number of periods of the second reference signal is a first number;

[0009] The number of burst sets of the second reference signal is a second number;

[0010] The number of the second reference signals is a third number;

[0011] The second reference signal is sent according to a reference signal pattern;

[0012] Wherein, the reference signal pattern includes at least one of the following:

[0013] The reference signal pattern identifier of the second reference signal;

[0014] The candidate time domain positions of the second reference signal within a time unit;

[0015] The number of the second reference signals within a time unit;

[0016] The time domain length of the second reference signal burst set;

[0017] The repetition information of the second reference signal;

[0018] The period of the second reference signal;

[0019] The start position, offset value, length, number or end position of the second reference signal in the time domain or frequency domain;

[0020] The start position, offset value, length, number or end position of the second reference signal burst set in the time domain or frequency domain.

[0021] In a second aspect, a method for receiving a reference signal is provided, which is executed by a terminal. The method includes:

[0022] The terminal receives a first reference signal sent by a network side device; the first reference signal includes at least one second reference signal;

[0023] The transmission of the first reference signal satisfies at least one of the following:

[0024] The number of periods of the second reference signal is a first number;

[0025] The number of burst sets of the second reference signal is a second number;

[0026] The number of the second reference signals is a third number;

[0027] The second reference signal is transmitted according to a reference signal pattern;

[0028] Wherein, the reference signal pattern includes at least one of the following:

[0029] The candidate time domain positions of the second reference signal within a time unit;

[0030] The number of the second reference signals within a time unit;

[0031] The time domain length of the second reference signal burst set;

[0032] The repetition information of the second reference signal;

[0033] The period of the second reference signal;

[0034] The starting position, offset value, length, number, or ending position of the second reference signal in the time domain or frequency domain;

[0035] The starting position, offset value, length, number, or ending position of the second reference signal burst set in the time domain or frequency domain.

[0036] In a third aspect, a transmitting device for a reference signal is provided, including:

[0037] A transmitting module, configured to transmit a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0038] The transmission of the first reference signal satisfies at least one of the following:

[0039] The number of periods of the second reference signal is a first number;

[0040] The number of burst sets of the second reference signal is a second number;

[0041] The number of the second reference signals is a third number;

[0042] The second reference signal is transmitted according to a reference signal pattern;

[0043] Wherein, the reference signal pattern includes at least one of the following:

[0044] The reference signal pattern identifier of the second reference signal;

[0045] The candidate time domain positions of the second reference signal within a time unit;

[0046] The number of the second reference signals within a time unit;

[0047] The time domain length of the second reference signal burst set;

[0048] The repetition information of the second reference signal;

[0049] The period of the second reference signal;

[0050] The starting position, offset value, length, number, or ending position of the second reference signal in the time domain or frequency domain;

[0051] The starting position, offset value, length, number, or ending position of the second reference signal burst set in the time domain or frequency domain.

[0052] In a fourth aspect, a receiving device for a reference signal is provided, including:

[0053] 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;

[0054] The transmission of the first reference signal satisfies at least one of the following:

[0055] The number of periods of the second reference signal is a first number;

[0056] The number of burst sets of the second reference signal is a second number;

[0057] The number of the second reference signals is a third number;

[0058] The second reference signal is transmitted according to a reference signal pattern;

[0059] Wherein, the reference signal pattern includes at least one of the following:

[0060] The candidate time domain positions of the second reference signal within a time unit;

[0061] The number of the second reference signals within a time unit;

[0062] The time domain length of the second reference signal burst set;

[0063] The repetition information of the second reference signal;

[0064] The period of the second reference signal;

[0065] The starting position, offset value, length, number or ending position of the second reference signal in the time domain or frequency domain;

[0066] The starting position, offset value, length, number or ending position of the second reference signal burst set in the time domain or frequency domain.

[0067] In a fifth aspect, a network-side device is provided, which includes a processor and a memory. 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 described in the first aspect are implemented.

[0068] In a sixth aspect, a network-side device is provided, including a processor and a communication interface, wherein:

[0069] The communication interface is used to send a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0070] The transmission of the first reference signal satisfies at least one of the following:

[0071] The number of periods of the second reference signal is a first number;

[0072] The number of burst sets of the second reference signal is a second number;

[0073] The number of the second reference signals is a third number;

[0074] The second reference signals are sent according to a reference signal pattern;

[0075] Wherein, the reference signal pattern includes at least one of the following:

[0076] The reference signal pattern identifier of the second reference signals;

[0077] The candidate time domain positions of the second reference signals within a time unit;

[0078] The number of the second reference signals within a time unit;

[0079] The time domain length of the second reference signal burst set;

[0080] The repetition information of the second reference signals;

[0081] The period of the second reference signals;

[0082] The start position, offset value, length, number or end position of the second reference signals in the time domain or frequency domain;

[0083] The start position, offset value, length, number or end position of the second reference signal burst set in the time domain or frequency domain.

[0084] In a seventh aspect, a terminal is provided, which includes a processor and a memory. The memory stores a program or instructions that can run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0085] In an eighth aspect, a terminal is provided, including a processor and a communication interface, wherein:

[0086] The communication interface 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;

[0087] The transmission of the first reference signal satisfies at least one of the following:

[0088] The number of periods of the second reference signals is a first number;

[0089] The number of burst sets of the second reference signals is a second number;

[0090] The number of the second reference signals is a third number;

[0091] The second reference signals are sent according to a reference signal pattern;

[0092] Wherein, the reference signal pattern includes at least one of the following:

[0093] The candidate time domain positions of the second reference signal within a time unit;

[0094] The quantity of the second reference signal within a time unit;

[0095] The time domain length of the second reference signal burst set;

[0096] The repetition information of the second reference signal;

[0097] The period of the second reference signal;

[0098] The start position, offset value, length, quantity, or end position of the second reference signal in the time domain or frequency domain;

[0099] The start position, offset value, length, quantity, or end position of the second reference signal burst set in the time domain or frequency domain.

[0100] In a 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.

[0101] In a tenth aspect, a wireless communication system is provided, including: a terminal and a network side device. 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.

[0102] In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect, or to implement the method described in the second aspect.

[0103] In a twelfth aspect, a computer program / program product is provided. The computer program / program product is stored in a storage medium, and the program / program product 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.

[0104] In the embodiments of the present application, the network side device sends a first reference signal to the terminal, and the transmission of the first reference signal satisfies at least one of the foregoing, realizing on-demand transmission of the reference signal, which can reduce the power consumption of the network side device, thereby achieving network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1 It is a schematic diagram of the architecture of a wireless communication system provided by the embodiments of the present application;

[0106] Figure 2 It is a schematic flowchart of the method for transmitting reference signals provided by an embodiment of the present application;

[0107] Figure 3 It is one of the schematic diagrams of the principle of the reference signal pattern provided by an embodiment of the present application;

[0108] Figure 4 It is the second schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0109] Figure 5 It is the third schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0110] Figure 6 It is the fourth schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0111] Figure 7 It is the fifth schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0112] Figure 8 It is the sixth schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0113] Figure 9 It is the seventh schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0114] Figure 10 It is the eighth schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0115] Figure 11 It is the ninth schematic diagram of the principle of the reference signal pattern provided by an embodiment of the present application;

[0116] Figure 12 It is a schematic flowchart of the method for receiving reference signals provided by an embodiment of the present application;

[0117] Figure 13 It is a schematic structural diagram of the apparatus for transmitting reference signals provided by an embodiment of the present application;

[0118] Figure 14 It is a schematic structural diagram of the apparatus for receiving reference signals provided by an embodiment of the present application;

[0119] Figure 15 It is a schematic structural diagram of the communication device provided by an embodiment of the present application;

[0120] Figure 16 It is a schematic structural diagram of the network-side device provided by an embodiment of the present application;

[0121] Figure 17 It is a schematic structural diagram of the terminal provided by an embodiment of the present application. Detailed implementation manners

[0122] The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application belong to the scope of protection of the present application.

[0123] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances 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 usually of the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "or" in the present application means at least one of the connected objects. For example, "A or B" covers three scenarios, namely, Scenario 1: including A and not including B; Scenario 2: including B and not including A; Scenario 3: including both A and B. The character " / " generally indicates an "or" relationship between the associated objects before and after.

[0124] The term "indication" in the present application can be either a direct indication (or an explicit indication) or an indirect indication (or an implicit indication). Among them, a direct indication can be understood as that the sender clearly informs the receiver of specific information, operations to be performed, or request results, etc. in the sent indication; an indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or makes a judgment and determines the operations to be performed or request results, etc. according to the judgment result.

[0125] It should be noted that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and 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 this application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes the New Radio (NR) system for example purposes, and the NR term is used in most of the following descriptions, but these technologies can also be applied to systems other than the NR system, such as the 6th Generation (6 th Generation, 6G) communication system.

[0126] Figure 1The block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. Among them, the terminal 11 can be a mobile phone, a tablet personal computer, a 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, a flight vehicle, a vehicle user equipment (VUE), a shipborne device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), a game console, a personal computer (PC), a teller machine or a self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart ankle chains, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle user equipment can also be referred to as a vehicle terminal, a vehicle controller, a vehicle module, a vehicle component, a vehicle chip or a vehicle unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. Among them, the access network device can also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device can 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 may 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, Transmission Reception Point (TRP), or some other suitable term in the art. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of this application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0127] The core network device may include, but is not limited to, at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network devices in the NR system are taken as examples for introduction, and the specific types of core network devices are not limited.

[0128] To facilitate a clearer understanding of the technical solutions provided by the embodiments of this application, some related knowledge is introduced as follows.

[0129] Regarding known and unknown cells:

[0130] If the following conditions are met, the Secondary Cell (SCell) on the frequency band FR1 is known:

[0131] 1. During a period equal to max(5 * mesCycleSCell, 5 * DRX cycle) in FR1 before receiving the SCell activation command:

[0132] 1-1. The terminal has sent a valid measurement report of the SCell to be activated;

[0133] 1-2. According to the specified cell identification conditions, the measured SSB remains in a detectable state.

[0134] Among them, mesCycleSCell represents the measurement period of the SCell; DRX refers to Discontinuous Reception;

[0135] 2. According to the specified cell identification conditions, the SSB measured during a period equal to max(5 * mesCycleSCell, 5 * DRX periods) also remains detectable during the SCell activation delay period.

[0136] Otherwise, the SCell in FR1 is unknown.

[0137] For the activation of the first SCell in frequency band FR2, if the following conditions are met, the SCell is known:

[0138] 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 (if applicable) and the semi-persistent Channel State Information Reference Signal (CSI-RS) for Channel Quality Indicator (CQI) reporting (if applicable), for a terminal supporting power level 1 / 5, it is equal to 4 s, and for a terminal supporting power levels 2 / 3 / 4, it is equal to 3 s:

[0139] 1-1. The terminal has sent a valid L3 - Reference Signal Received Power (RSRP) measurement report corresponding to the SSB index;

[0140] 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;

[0141] 2. During the period from the L3-RSRP report to the valid CQI report, the reported SSB with an index remains detectable according to the specified cell identification conditions, and the TCI state is selected based on one of the latest reported SSB indexes.

[0142] Otherwise, the first SCell in FR2 is unknown.

[0143] The method, receiving method, and device for transmitting reference signals provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0144] Figure 2 is a schematic flowchart of the method for transmitting a reference signal provided by the embodiment of the present application. This method is executed by a network-side device, such as Figure 2 shown, this method includes step 201 and step 202, where:

[0145] Step 201: The network-side device sends a first reference signal to the terminal; the first reference signal includes at least one second reference signal;

[0146] The transmission of the first reference signal satisfies at least one of the following:

[0147] The number of periods of the second reference signal is a first number;

[0148] The number of burst sets of the second reference signal is a second number;

[0149] The number of the second reference signals is a third number;

[0150] The second reference signal is sent according to a reference signal pattern;

[0151] Among them, the reference signal pattern includes at least one of the following:

[0152] The reference signal pattern identifier of the second reference signal;

[0153] The candidate time domain position of the second reference signal within a time unit;

[0154] The number of the second reference signals within a time unit;

[0155] The time domain length of the second reference signal burst set;

[0156] The repetition information of the second reference signal;

[0157] The period of the second reference signal;

[0158] The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain;

[0159] The starting position, offset value, length, quantity, or ending position of the second reference signal burst set in the time domain or frequency domain.

[0160] Optionally, the first quantity, the second quantity, and the third quantity are predefined by the protocol, or preconfigured or configured by the network side.

[0161] It should be noted that the network side device may include a network side device on the satellite, such as a base station on the satellite, or may also include a network side device on the ground, such as a ground base station.

[0162] Optionally, the first reference signal or the second reference signal may include at least one of the following: downlink reference signal, downlink synchronization signal, synchronization signal, SSB burst, SSB, on-demand reference signal. The on-demand reference signal is, for example, on-demand SSB (ondemand SSB). For example, the downlink reference signal may also include at least one of CSI-RS, demodulation reference signal DMRS, tracking reference signal TRS, aperiodic TRS, phase tracking reference signal PTRS, etc.

[0163] It can be understood that the on-demand reference signal is a reference signal sent by the network side device according to the needs of the network side or the needs of the terminal. The network side can transition from a state of not sending to a state of sending, or can transition from one sending state to another sending state, such as different sending periods, etc., or additional reference signal sending, etc.

[0164] It can be understood that the network side device sends an SSB set or on demand SSB. The SSB set may include multiple periods of SSBs, or multiple SSB burst sets, or multiple SSBs. The pattern design of the SSBs within one period may include different information. For example, the period value of the SSB, the time domain or frequency domain position of the SSBs within one period, how many candidate transmission positions are included in one slot, and so on.

[0165] Optionally, the implementation manner for the network side device to send the reference signal to the terminal may include at least one of the following:

[0166] Method 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 / p primary cell / p primary cell group / p primary and secondary cell.

[0167] Method 2: The network side device sends the reference signal to the terminal on the second frequency / second carrier / second serving cell / second serving cell group / s secondary cell / s secondary cell group. For example, the second carrier may be a single carrier, or a carrier group composed of multiple carriers.

[0168] It can be understood that the first frequency can also be expressed as concepts such as a first carrier, a first cell, a first cell group, etc.;

[0169] It can be understood that the first frequency can also be expressed as concepts such as a second carrier, a second cell, a second cell group, etc.;

[0170] In the embodiment of the present application, the network-side device sends a first reference signal to the terminal, and the sending of the first reference signal satisfies at least one of the foregoing, realizing on-demand sending of the reference signal, which can reduce the power consumption of the network-side device, thereby achieving network energy saving.

[0171] The reference signal pattern is predefined by the protocol, pre-configured by the network-side device, configured by the network-side device, or indicated by the network-side device.

[0172] It should be noted that the number of periods of the second reference signal, the number of burst sets, and the number can also be regarded as part of the content of the reference signal pattern.

[0173] Optionally, the method further includes:

[0174] The network-side device sends first indication information to the terminal, and the first indication information is used to indicate the network-side device to send the first reference signal;

[0175] The first indication information includes at least one of the following:

[0176] The number of periods of the second reference signal;

[0177] The number of burst sets of the second reference signal;

[0178] The number of the second reference signal;

[0179] The reference signal pattern of the second reference signal;

[0180] The index of the second reference signal.

[0181] Optionally, the first indication information is carried by at least one of the following:

[0182] Radio Resource Control (RRC) message;

[0183] Downlink Control Information (DCI);

[0184] Medium Access Control Control Element (MAC CE).

[0185] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0186] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

[0187] Specifically, the first indication information is configured by RRC, or indicated by DCI, MAC CE, etc. sent by the network side device;

[0188] For example, the network side device configures multiple reference signal patterns, and indicates which reference signal pattern to use currently by the indication of the network side device.

[0189] The first indication information can be triggered according to per beam / per beam group / per cell / per zone / per UE / per UE group, per reference signal frequency point / per reference signal frequency point group / per measurement object / per measurement object group.

[0190] Optionally, different reference signal patterns have different SSB time domain positions, quantities, periods, etc.

[0191] Optionally, at least one of the number of periods, the number of burst sets, the quantity, and the reference signal pattern of the second reference signal can also be predefined by the protocol, or preconfigured or configured by the network side.

[0192] It can be understood that some information in the reference signal pattern can also be predefined by the protocol, or preconfigured or configured by the network side. For example, the period value, candidate time domain positions, quantity, etc.

[0193] Optionally, 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:

[0194] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8}+14×n;

[0195] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9}+14×n;

[0196] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10}+14×n;

[0197] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22}+28×n;

[0198] 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;

[0199] where n is an integer greater than or equal to 0.

[0200] Exemplarily, under the SSB of 15KHz, the candidate time domain positions of the SSB (in the frame / sub-frame / slot / consecutive slots containing the SSB) satisfy at least one of the following:

[0201] a) The index of the position 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 15kHz subcarrier for UCI / DCI;

[0202] b) The index of the position of the first symbol of the candidate SSB is {1, 5, 9} + 14×n, leaving the first and last symbols of the time slot corresponding to the 15kHz subcarrier, the first two symbols and the last two symbols of every two time slots on the 30kHz subcarrier for UCI / DCI;

[0203] 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 15kHz subcarrier for UCI / DCI;

[0204] d) The index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28×n, leaving the first two symbols and the last two symbols of every two time slots corresponding to the 15kHz subcarrier for UCI / DCI;

[0205] 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);

[0206] where 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 the SSB of one slot is sent.

[0207] Optionally, in the case where the second reference signal is a reference signal of 30kHz or 120kHz, the candidate time domain positions of the second reference signal satisfy at least one of the following:

[0208] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10} + 14×n;

[0209] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8} + 14×n;

[0210] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24} + 28×n;

[0211] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0212] 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;

[0213] Where n is an integer greater than or equal to 0.

[0214] Exemplarily, under 30KHz SSB, the candidate time domain positions of SSB (in the frame / subframe / slot / consecutive slots containing SSB) satisfy at least one of the following:

[0215] a) The index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14×n, leaving the first symbol of the time slot corresponding to the 15kHz subcarrier for the uplink control information UCI / DCI, and the first 2 symbols of each time slot on the 30kHz subcarrier;

[0216] b) The index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14×n, leaving the last symbol of the time slot corresponding to the 15kHz subcarrier for the UCI / DCI, and the last 2 symbols of each time slot on the 30kHz subcarrier;

[0217] c) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 16, 20, 24} + 28×n, leaving the last 2 symbols of the first time slot and the first 2 symbols of the second time slot in every 2 time slots on the 30kHz subcarrier for the UCI / DCI;

[0218] d) The index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28×n, leaving 1 symbol at each end of the time slot corresponding to the 15kHz subcarrier for the UCI / DCI, and leaving the first 2 symbols of the first time slot and the last 2 symbols of the second time slot in every 2 time slots on the 30kHz subcarrier;

[0219] e) The index of the position of the first symbol of the candidate SSB has {0, 4, 8, 12, 16, 20, 24} + 14 * 2n (corresponding to the case where 7 SSBs occupy 2 consecutive slots).

[0220] Optionally, the 120 kHz case can refer to the 30 kHz design.

[0221] Optionally, in the case where 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:

[0222] The index of the position of the first symbol of the candidate time domain position has {4, 8, 16, 20} + 28 × n;

[0223] The index of the position of the first symbol of the candidate time domain position has {4, 8, 12, 16, 20} + 28 × n;

[0224] The index of the position of the first symbol of the candidate time domain position has {4, 8, 12, 16, 20, 24} + 28 × n;

[0225] The index of the position of the first symbol of the candidate time domain position has {0, 4, 8, 12, 16, 20} + 28 × n;

[0226] The index of the position of the first symbol of the candidate time domain position has {0, 4, 8, 12, 16, 20, 24} + 28 × n;

[0227] Where n is an integer greater than or equal to 0.

[0228] Exemplarily, in the case of 60 KHz SSB, the candidate time domain positions of the SSB (in the frame / subframe / slot / consecutive slots containing the SSB) satisfy at least one of the following (considering that it may not be necessary to reserve enough space for transmitting uplink / downlink control information for each possible subcarrier spacing (SubCarrierSpacing, SCS), the 60 KHz SSB can support the following cases):

[0229] a) The index of the position of the first symbol of the candidate SSB has {4, 8, 16, 20} + 28 × n, leaving 1 symbol at each end of the time slot on a 15 kHz subcarrier and 2 symbols at each end of each time slot on a 30 kHz subcarrier and at least 2 symbols at each end of each time slot on a 60 kHz subcarrier for UCI / DCI;

[0230] 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 each end of the time slot on the 15 kHz subcarrier for UCI / DCI, two symbols at each end of each time slot on the 30 kHz subcarrier, and at least two symbols at each end of every two time slots on the 60 kHz subcarrier;

[0231] c) The index of the position of the first symbol of the candidate SSB is {4, 8, 12, 16, 20, 24} + 28×n, leaving one symbol at the front of the time slot on the 15 kHz subcarrier for UCI / DCI, two symbols at the front of each time slot on the 30 kHz subcarrier, and four symbols at the front of every two time slots on the 60 kHz subcarrier;

[0232] d) The index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20} + 28×n, leaving two symbols at the front of each time slot on the 30 kHz subcarrier for UCI / DCI, and four symbols at the front of every two time slots on the 60 kHz subcarrier;

[0233] 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 two consecutive slots).

[0234] Optionally, the 240 kHz case can refer to the 60 kHz design.

[0235] Optionally, in the case where 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:

[0236] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20} + 28×n;

[0237] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10} + 14×n;

[0238] where n is an integer greater than or equal to 0.

[0239] Exemplarily, in the case of 480 kHz or 960 kHz SSB, the candidate time domain positions of the SSB (in the frame / subframe / slot / consecutive slots containing the SSB) satisfy at least one of the following:

[0240] a) The index of the position of the first symbol of the candidate SSB is {0, 5, 10, 15, 20} + 28×n, leaving a switching time of 1 symbol and the last 4 symbols in every two slots;

[0241] b) The index of the position of the first symbol of the candidate SSB is {0, 5, 10} + 14×n, leaving a switching time of 1 symbol, erasing the space for type0 PDCCH of 2 symbols, that is, the space for sending DL / UL control information is realized by the configuration of n, and it is no longer configured in the slot with SSB. In this pattern, two consecutive slots will have SSBs;

[0242] Among them, under FR2-2, the interval gap for beam switching needs to be considered. Based on the conventional design, a switching time of 1 symbol is considered to be left.

[0243] Optionally, 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:

[0244] The number or candidate transmission positions of the second reference signal in 1 time unit is 3;

[0245] The number or candidate transmission positions of the second reference signal in 2 consecutive time units is 5 or 7;

[0246] The number or candidate transmission positions of the second reference signal in the time unit is related to the reference signal pattern;

[0247] The number or candidate transmission positions of the second reference signal in the time unit is predefined by the protocol, preconfigured by the network side device, or configured by the network side device.

[0248] In the above embodiments, the duration of sending the same number of SSBs is further reduced because originally at most 2 SSBs could be sent in one time unit, but now 3 can be sent. This sending method is more conducive to power saving of the network side device.

[0249] 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;

[0250] Optionally, the number of periods of the second reference signal is predefined by the protocol, preconfigured by the network side device, configured by the network side device, or dynamically indicated by the network side device.

[0251] For example, a first reference signal is transmitted for P SSB periods in total, where the number of periods is configured in an RRC message or indicated in a triggering signaling (such as a first indication message) of the first reference signal.

[0252] Optionally, the number of the second reference signals satisfies at least one of the following:

[0253] When the first condition is satisfied, the number of the second reference signals is 1;

[0254] When the second condition is satisfied, the number of the second reference signals is greater than 1;

[0255] Wherein, the first condition includes at least one of the following:

[0256] The first reference signal is triggered for a specific terminal;

[0257] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction;

[0258] The cell related to the first reference signal is a known cell;

[0259] The first indication message carries quasi - co - location (QCL) information;

[0260] The first indication message indicates that the number of the second reference signals is 1;

[0261] The RRC configuration information indicates the number of the second reference signals;

[0262] The second condition includes at least one of the following:

[0263] The first reference signal is triggered for multiple terminals or triggered by group common signaling;

[0264] The first reference signal is used for measurement reporting;

[0265] The cell related to the first reference signal is an unknown cell;

[0266] The first indication message does not carry QCL information;

[0267] The first indication message indicates that the number of the second reference signals is greater than 1.

[0268] Optionally, when 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:

[0269] The TCI state or QCL information reported by the terminal; the RRC configuration information;

[0270] Or,

[0271] The transmission configuration of the first reference signal indicates that the TCI state is the same as the TCI state of the previous first reference signal.

[0272] Optionally, 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.

[0273] For example, a total of Q SSB bursts are sent for the second reference signal once, where the number of periods is configured in the RRC message or indicated in the trigger signaling of the second reference signal (such as the first indication information);

[0274] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0275] The burst set of the second reference signal is repeated within one period;

[0276] A specific reference signal in the burst set of the second reference signal is repeated.

[0277] For example, when the SSB period configured by RRC is long, in order to send some SSBs with shorter periods, the repetition information of only one SSB burst can be considered;

[0278] Specifically, 1) The burst set of the second reference signal is repeated within one period:

[0279] Optionally, the number of repetitions K1 is predefined by the protocol / preconfigured by the network device / configured by the network device / dynamically indicated by the network device;

[0280] For example, if the SSB period is 160 ms, when 2 repetitions are indicated, then two SSB burst sets are sent within one period; optionally, the interval between SSB burst sets is greater than the first threshold or less than the second threshold;

[0281] 2) A specific reference signal in the burst set of the second reference signal is repeated:

[0282] Optionally, the number of repetitions K2 is predefined by the protocol / preconfigured by the network device / configured by the network device / dynamically indicated by the network device;

[0283] Optionally, the repetition of a 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 an SSB burst, for example, after sending the entire SSB burst, the repetition of the specific SSB is sent.

[0284] Optionally, a period of the second reference signal satisfies at least one of the following:

[0285] The period of the second reference signal is A frames;

[0286] The period of the second reference signal is B half frames;

[0287] The period of the second reference signal is C time units;

[0288] The period of the second reference signal is D symbols;

[0289] A candidate position of the reference signal is present in all time units within a period of the second reference signal;

[0290] Among them, A, B, C and D are integers greater than 0, which are predefined by the protocol, or preconfigured or configured by the network side, or indicated by the network side.

[0291] For example, the current minimum period of the SSB cycle is 5ms. From the perspective of sending the first reference signal as quickly as possible, the period 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.

[0292] 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.

[0293] Here, the method provided in the embodiments of the present application is illustrated by means of several specific examples.

[0294] Example 1: Interval design of on demand SSB.

[0295] In order to meet the transmission timeliness of DCI and UCI, the current SSB transmission has a time interval between two SSBs sent in one slot, or a time interval between the slots where multiple SSBs are located, thereby leaving scheduling space for DCI or leaving transmission opportunities for UCI, as described in the background technology. Figure 1As shown. However, such a design is not very energy-efficient for the base station because the transmission time of the SSB is extended within one cycle. At the same time, due to the small time interval, even when the base station has no data transmission or reception, it cannot enter a more energy-efficient state in a timely manner.

[0296] The introduction of On demand SSB is for network energy conservation. It can be considered to further reduce or cancel these time intervals, thereby shortening the transmission duration of the same number of SSBs, which is beneficial to further energy conservation of the base station. Considering that the SSB occupies a total of 4 symbols, and one slot has 14 symbols, when the SSB does not cross slots, one slot can hold 3 SSBs. If the SSB is transmitted across slots, 2 slots can hold up to 7 SSBs at most.

[0297] When the SSB uses 15 kHz subcarriers, if it is considered to place 3 SSBs in one slot, there are still two remaining symbols at this time. It can be considered as follows Figure 3 Design:

[0298] At this time, leaving the last two symbols of the time slot corresponding to the 15 kHz subcarriers can be used for the transmission or scheduling of UCI / DCI. At this time, the index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14×n.

[0299] Or, leave the first two symbols. At this time, the index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14×n, as Figure 4 shown;

[0300] Or, leave one symbol at the front and one at the back. At this time, the index of the position of the first symbol of the candidate SSB is {1, 5, 9} + 14×n, as Figure 5 shown;

[0301] Or, take every two slots as a group. Leave the first two symbols in the first slot and the last two symbols in the second slot. At this time, the index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28×n;

[0302] 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.

[0303] When the SSB uses 30 kHz subcarriers:

[0304] For the first case, the first two symbols of 30 kHz are still reserved for each slot. However, for the case of 15 kHz subcarriers, only the first symbol can be reserved. At this time, the index of the position of the first symbol of the candidate SSB is {2, 6, 10} + 14×n, as Figure 6 shown;

[0305] For the second case, the last symbol of the time slot corresponding to 15 kHz subcarriers and the last two symbols of each time slot on 30 kHz subcarriers are reserved. At this time, the index of the position of the first symbol of the candidate SSB is {0, 4, 8} + 14×n, as Figure 7 shown;

[0306] For the third case, 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 30 kHz subcarriers are reserved. At this time, the index of the position of the first symbol of the candidate SSB is {0, 4, 8, 16, 20, 24} + 28×n, as Figure 8 shown;

[0307] For the fourth case, the first and last symbols of the time slot corresponding to 15 kHz subcarriers are reserved, 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 30 kHz subcarriers are reserved. At this time, the index of the position of the first symbol of the candidate SSB is {2, 6, 10, 14, 18, 22} + 28×n, as Figure 9 shown;

[0308] Finally, 7 SSBs occupy 2 slots, and the position index is the same as that of 15 kHz.

[0309] When 60 kHz subcarriers are used for SSB:

[0310] For the first method, the index of the position of the first symbol of the candidate SSB is {4, 8, 16, 20} + 28×n. The purpose is to reserve the first and last symbols of the time slot on 15 kHz subcarriers, the first and last two symbols of each time slot on 30 kHz subcarriers, and at least the first and last two symbols of each time slot on 60 kHz subcarriers, as Figure 10 shown;

[0311] For the second method, the index of the position of the first symbol of the candidate SSB is {4, 8, 12, 16, 20} + 28×n. The purpose is to reserve the first and last symbols of the time slot on 15 kHz subcarriers, the first and last two symbols of each time slot on 30 kHz subcarriers, and at least the first and last two symbols of every two time slots on 60 kHz subcarriers, as Figure 11 shown;

[0312] The third method is that the index of the position of the first symbol of the candidate SSB is {4, 8, 12, 16, 20, 24} + 28×n, leaving the first 2 symbols in each time slot on the 30 kHz subcarrier and the first 4 symbols in every two time slots on the 60 kHz subcarrier.

[0313] The fourth method is that the index of the position of the first symbol of the candidate SSB is {0, 4, 8, 12, 16, 20} + 28×n, leaving the last 2 symbols in each time slot on the 30 kHz subcarrier and the last 4 symbols in every two time slots on the 60 kHz subcarrier.

[0314] When the SSB subcarrier is 120 kHz, the same design as that for 30 kHz can be considered.

[0315] When the SSB subcarrier is 240 kHz, the same design as that for 60 kHz can be considered.

[0316] When the SSB subcarriers are 480 kHz and 960 kHz, the current standard design leaves a switching time between SSBs. From this perspective, two design schemes can be considered:

[0317] The first is that the index of the position of the first symbol of the candidate SSB is {0, 5, 10, 15, 20} + 28×n, leaving a switching time of 1 symbol and the last 4 symbols in every two slots.

[0318] The second is that the index of the position of the first symbol of the candidate SSB is {0, 5, 10} + 14×n, leaving a switching time of 1 symbol and erasing the space for 2 symbols for type 0 PDCCH, that is, the space for transmitting 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.

[0319] Example 2: Pattern design of on demand SSB.

[0320] The current transmission pattern of SSB is relatively fixed, but the pattern design of on demand SSB is mainly from the perspective of energy saving, and the triggering purposes may also be different, so different designs can be available.

[0321] An on demand SSB may contain only one SSB period, or only a limited number of SSB periods and then stop sending until it is indicated again. The number of periods sent is indicated by a quantity parameter, or by a bitmap, or a time point / time length / time window is indicated, and the terminal determines at which candidate positions to detect the SSB based on this.

[0322] If the on demand SSB is triggered for a specific UE, only the SSBs associated with this UE are sent within an SSB burst of this on demand SSB. Similar to the conventional technique of indicating which SSBs in a burst will be sent and which will not be sent through a bitmap, the difference is that indicating which specific SSBs to send may be indicated by a MAC CE or DCI. One way of indication is still based on a bitmap, and it is also possible to indicate an SSB index, or a QCL information.

[0323] Example 3:

[0324] The design of the pattern of the on demand SSB is mainly from the perspective of energy saving, and the triggering purpose may also be different. Different transmission mechanisms from the existing SSBs can be considered, such as repetition design.

[0325] Case 1: The SSB burst repeats within one SSB period, and the number of repetitions is predefined by the protocol, or preconfigured by the network side device, or configured by the network side device, or dynamically indicated by the network side device.

[0326] Case 2: Different repetition designs can be considered for the candidate SSB positions within the SSB burst when sending the SSB.

[0327] For example 1, the candidate SSBs within the SSB burst are divided into multiple subsets, and each subset is a repetition of other subsets. For example, there are 16 candidate positions. Introduce Q, where Q = 4, that is, 4 subsets. At this time, the SSBs sent are 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, 2, 3. It is also possible to only repeat a certain subset, such as 0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 0, 1, 2, 3. At this time, it is necessary to indicate which subset or which SSBs or the SSBs at which candidate positions are to be repeated, and / or the number of repetitions and the position of the repetition. Or, if the number of repetitions is not indicated, it is default to repeat the remaining candidate positions in sequence.

[0328] The repetition position may be a repetition of consecutive positions, or the repetition positions may all be after the SSB burst, or an additional repetition is performed outside the SSB burst;

[0329] Possible configuration / indication methods are:

[0330] Configure / indicate the number of subsets divided in sequence and / or the number of repetitions, or the repetition position.

[0331] Configure / indicate the repeated SSB index or SSB group index, or the number of repetitions and the repetition position.

[0332] Configure / indicate the maximum SSB index or SSB group index to be repeated, or the number of repetitions and the repetition position. For example, if the SSB index 7 is indicated, then all SSB inde170 - 7 are repeated.

[0333] Example 4:

[0334] One possibility of On demand SSB is that the network - side device only sends SSB when triggered by the terminal. Another possibility is that the network - side device changes from the state of never sending SSB to the state of sending SSB. There is also a possibility of changing the SSB transmission period.

[0335] There are two possibilities for the transmission position of On demand SSB:

[0336] One is flexible transmission, which is determined according to the indication of the network-side device or in combination with the request of the terminal.

[0337] The other is to transmit at a pre-configured timing / position, that is, the network-side device pre-configures a candidate timing / position for on-demand SSB transmission. For example, it is indicated by a bitmap, or a starting timing / position is determined by a Direct Frame Number (DFN) / System Frame Number (SFN) index + symbol index, and then it repeats according to a pre-configured period, which is the candidate transmission timing / position of on-demand SSB. When on-demand SSB is transmitted, it is always transmitted at some timings / positions among the candidate timings / positions.

[0338] When the network-side device starts to transmit on-demand SSB, one possibility is to transmit it N times, for example, 4 times, repeatedly according to a certain SSB period, such as 80 ms. Another possibility is to gradually increase the SSB transmission period, which can achieve the effect of power saving and, as much as possible, enable the terminal to maintain synchronization through SSB. For example, when the network-side device starts to transmit SSB, it first transmits twice with a period of 20 ms. When transmitting SSB for the third or fourth time, the interval from the previous SSB becomes 40 ms, which is equivalent to switching the SSB period to 40 ms and transmitting twice. Then, according to the same principle, the SSB period is switched to 80 ms until it is transmitted twice with the configured maximum SSB period and then the SSB transmission stops, or it has been transmitting SSB with the maximum SSB period, such as 640 ms, all the time.

[0339] Optionally, in the above specific example, on-demand SSB can also be expressed as the aforementioned first reference signal or second reference signal.

[0340] Figure 12 It is a schematic flowchart of a method for receiving a reference signal provided by an embodiment of the present application. This method is executed by a terminal, as Figure 12 shown, and this method includes:

[0341] Step 1201, the terminal receives a first reference signal sent by the network-side device; the first reference signal includes at least one second reference signal;

[0342] The transmission of the first reference signal satisfies at least one of the following:

[0343] The number of periods of the second reference signal is a first number;

[0344] The number of burst sets of the second reference signal is a second number;

[0345] The number of the second reference signals is a third number;

[0346] The second reference signals are sent according to a reference signal pattern;

[0347] Wherein, the reference signal pattern includes at least one of the following:

[0348] Candidate time domain positions of the second reference signals within a time unit;

[0349] The number of the second reference signals within a time unit;

[0350] The time domain length of a second reference signal burst set;

[0351] Repetition information of the second reference signals;

[0352] The period of the second reference signals;

[0353] The start position, offset value, length, number or end position of the second reference signals in the time domain or frequency domain;

[0354] The start position, offset value, length, number or end position of a second reference signal burst set in the time domain or frequency domain.

[0355] 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.

[0356] Optionally, the method further includes:

[0357] The terminal receives first indication information sent by the network side device, where the first indication information is used to indicate the network side device to send the first reference signal;

[0358] The first indication information includes at least one of the following:

[0359] The number of periods of the second reference signals;

[0360] The number of burst sets of the second reference signals;

[0361] The number of the second reference signals;

[0362] The reference signal pattern of the second reference signals;

[0363] The index of the second reference signals.

[0364] Optionally, the first indication information is carried by at least one of the following:

[0365] Radio Resource Control (RRC);

[0366] Downlink Control Information DCI;

[0367] Medium Access Control Element MAC CE.

[0368] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0369] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

[0370] Optionally, 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:

[0371] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n;

[0372] The index of the position of the first symbol of the candidate time-domain position is {1, 5, 9} + 14×n;

[0373] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n;

[0374] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0375] 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;

[0376] where n is an integer greater than or equal to 0.

[0377] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time-domain positions of the second reference signal satisfy at least one of the following:

[0378] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n;

[0379] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n;

[0380] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 16, 20, 24} + 28×n;

[0381] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0382] 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;

[0383] where n is an integer greater than or equal to 0.

[0384] Optionally, when the second reference signal is a reference signal of 60 kHz or 240 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0385] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20} + 28×n;

[0386] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20} + 28×n;

[0387] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24} + 28×n;

[0388] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20} + 28×n;

[0389] 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;

[0390] where n is an integer greater than or equal to 0.

[0391] Optionally, when the second reference signal is a reference signal of 480 kHz or 960 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0392] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20} + 28×n;

[0393] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10} + 14×n;

[0394] where n is an integer greater than or equal to 0.

[0395] Optionally, the number of the second reference signals or the candidate transmission positions of the second reference signal in the reference signal pattern in a time unit satisfies at least one of the following:

[0396] The number of the second reference signals or the candidate transmission positions in one time unit is 3;

[0397] The number of the second reference signals or the candidate transmission positions in two consecutive time units is 5 or 7;

[0398] The number of the second reference signals within a time unit or the candidate transmission positions is related to the reference signal pattern;

[0399] The number of the second reference signals within a time unit or the candidate transmission positions is predefined by the protocol, preconfigured by the network device, or configured by the network device.

[0400] 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 signals are periodically transmitted within the first time window, before the first time length, or before the first time point;

[0401] The number of periods of the second reference signals is predefined by the protocol, preconfigured by the network device, configured by the network device, or dynamically indicated by the network device.

[0402] Optionally, the number of the second reference signals satisfies at least one of the following:

[0403] When the first condition is satisfied, the number of the second reference signals is 1;

[0404] When the second condition is satisfied, the number of the second reference signals is greater than 1;

[0405] Wherein, the first condition includes at least one of the following:

[0406] The first reference signal is triggered for a specific terminal;

[0407] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction;

[0408] The cell related to the first reference signal is a known cell;

[0409] The first indication information carries quasi - co - location (QCL) information;

[0410] The first indication information indicates that the number of the second reference signals is 1;

[0411] The RRC configuration information indicates the number of the second reference signals;

[0412] The second condition includes at least one of the following:

[0413] The first reference signal is triggered for multiple terminals or triggered by group - common signaling;

[0414] The first reference signal is used for measurement reporting;

[0415] The cell related to the first reference signal is an unknown cell;

[0416] The first indication information does not carry QCL information;

[0417] The first indication information indicates that the number of the second reference signals is greater than 1.

[0418] Optionally, when 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:

[0419] The TCI state or QCL information reported by the terminal; RRC configuration information;

[0420] Or,

[0421] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the first reference signal in the previous time.

[0422] Optionally, 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.

[0423] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0424] The burst set of the second reference signal is repeated within one period;

[0425] Specific reference signals in the burst set of the second reference signal are repeated.

[0426] Optionally, the period of the second reference signal satisfies at least one of the following:

[0427] The period of the second reference signal is A frames;

[0428] The period of the second reference signal is B half-frames;

[0429] The period of the second reference signal is C time units;

[0430] The period of the second reference signal is D symbols;

[0431] Candidate positions of the second reference signal exist on all time units within one period of one second reference signal;

[0432] Wherein, A, B, C, and D are integers greater than 0.

[0433] In the method for sending a reference signal provided by an embodiment of the present application, the execution subject may be a device for sending a reference signal. In the embodiment of the present application, taking the device for sending a reference signal as an example to execute the method for sending a reference signal, the device for sending a reference signal provided by the embodiment of the present application is described.

[0434] Figure 13 is a schematic structural diagram of a transmission device for reference signals provided by an embodiment of the present application. As Figure 13 shown, the reference signal transmission device 1300 is applied to a network-side device. The reference signal transmission device 1300 includes:

[0435] a transmission module 1301, configured to transmit a first reference signal to a terminal; the first reference signal includes at least one second reference signal;

[0436] The transmission of the first reference signal satisfies at least one of the following:

[0437] The number of periods of the second reference signal is a first number;

[0438] The number of burst sets of the second reference signal is a second number;

[0439] The number of the second reference signals is a third number;

[0440] The second reference signal is transmitted according to a reference signal pattern;

[0441] wherein, the reference signal pattern includes at least one of the following:

[0442] The reference signal pattern identifier of the second reference signal;

[0443] The candidate time domain positions of the second reference signal within a time unit;

[0444] The number of the second reference signals within a time unit;

[0445] The time domain length of the second reference signal burst set;

[0446] The repetition information of the second reference signal;

[0447] The period of the second reference signal;

[0448] The start position, offset value, length, number, or end position of the second reference signal in the time domain or frequency domain;

[0449] The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain or frequency domain.

[0450] 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.

[0451] Optionally, the transmission module 1301 is specifically configured to:

[0452] Send 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;

[0453] The first indication information includes at least one of the following:

[0454] The number of periods of the second reference signal;

[0455] The number of burst sets of the second reference signal;

[0456] The number of the second reference signals;

[0457] The reference signal pattern of the second reference signal;

[0458] The index of the second reference signal.

[0459] Optionally, the first indication information is carried by at least one of the following:

[0460] Radio Resource Control (RRC) message;

[0461] Downlink Control Information (DCI);

[0462] Medium Access Control Element (MAC CE).

[0463] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0464] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

[0465] Optionally, 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:

[0466] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8} + 14×n;

[0467] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9} + 14×n;

[0468] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10} + 14×n;

[0469] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0470] 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;

[0471] where n is an integer greater than or equal to 0.

[0472] Optionally, 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:

[0473] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n;

[0474] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n;

[0475] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 16, 20, 24} + 28×n;

[0476] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0477] 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;

[0478] where n is an integer greater than or equal to 0.

[0479] Optionally, 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:

[0480] The index of the position of the first symbol of the candidate time-domain position is {4, 8, 16, 20} + 28×n;

[0481] The index of the position of the first symbol of the candidate time-domain position is {4, 8, 12, 16, 20} + 28×n;

[0482] The index of the position of the first symbol of the candidate time-domain position is {4, 8, 12, 16, 20, 24} + 28×n;

[0483] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 12, 16, 20} + 28×n;

[0484] 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;

[0485] where n is an integer greater than or equal to 0.

[0486] Optionally, 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:

[0487] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20} + 28×n;

[0488] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10} + 14×n;

[0489] Where n is an integer greater than or equal to 0.

[0490] Optionally, the number of the second reference signals in the reference signal pattern within a time unit or the candidate transmission positions satisfy at least one of the following:

[0491] The number of the second reference signals or the candidate transmission positions within 1 time unit is 3;

[0492] The number of the second reference signals or the candidate transmission positions within 2 consecutive time units is 5 or 7;

[0493] The number of the second reference signals in the time unit or the candidate transmission positions is related to the reference signal pattern;

[0494] The number of the second reference signals in the time unit or the candidate transmission positions is predefined by the protocol, preconfigured by the network side device or configured by the network side device.

[0495] 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 transmitted within the first time window, before the first time length or before the first time point;

[0496] The number of periods of the second reference signal is predefined by the protocol, preconfigured by the network side device, configured by the network side device or dynamically indicated by the network side device.

[0497] Optionally, the number of the second reference signals satisfies at least one of the following:

[0498] When the first condition is satisfied, the number of the second reference signals is 1;

[0499] When the second condition is satisfied, the number of the second reference signals is greater than 1;

[0500] Where the first condition includes at least one of the following:

[0501] The first reference signal is triggered for a specific terminal;

[0502] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction;

[0503] The cell associated with the first reference signal is a known cell;

[0504] The first indication information carries quasi - co - location (QCL) information;

[0505] The first indication information indicates that the number of the second reference signals is 1;

[0506] The RRC configuration information indicates the number of the second reference signals;

[0507] The second condition includes at least one of the following:

[0508] The first reference signal is triggered for multiple terminals or triggered by group - common signaling;

[0509] The first reference signal is used for measurement reporting;

[0510] The cell associated with the first reference signal is an unknown cell;

[0511] The first indication information does not carry QCL information;

[0512] The first indication information indicates that the number of the second reference signals is greater than 1.

[0513] Optionally, when 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:

[0514] The TCI state or QCL information reported by the terminal; the RRC configuration information;

[0515] Or,

[0516] The TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0517] Optionally, the number of burst sets of the second reference signal is predefined by the protocol, pre - configured by the network - side device, configured by the network - side device, or dynamically indicated by the network - side device.

[0518] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0519] The burst set of the second reference signal is repeated within a period;

[0520] A specific reference signal in the burst set of the second reference signal is repeated.

[0521] Optionally, the period of the second reference signal satisfies at least one of the following:

[0522] The period of the second reference signal is A frames;

[0523] The period of the second reference signal is B half-frames;

[0524] The period of the second reference signal is C time units;

[0525] The period of the second reference signal is D symbols;

[0526] Candidate positions of the second reference signal exist on all time units within one period of the second reference signal;

[0527] Wherein, A, B, C, and D are integers greater than 0.

[0528] The reference signal sending device in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a network-side device or other devices other than network-side devices. Exemplarily, the network-side device may include, but is not limited to, the types of the network-side device 12 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0529] The reference signal sending device provided in the embodiments of the present application can implement Figure 2 Each process implemented by the method embodiment shown and achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0530] Figure 14 It is a schematic structural diagram of the reference signal receiving device provided in the embodiments of the present application. As Figure 14 shown, the reference signal receiving device 1400 is applied to a terminal. The reference signal receiving device 1400 includes:

[0531] A receiving module 1401, configured to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0532] The sending of the first reference signal satisfies at least one of the following:

[0533] The number of periods of the second reference signal is a first number;

[0534] The number of burst sets of the second reference signal is a second number;

[0535] The number of the second reference signals is a third number;

[0536] The second reference signal is transmitted according to a reference signal pattern;

[0537] Wherein, the reference signal pattern includes at least one of the following:

[0538] Candidate time domain positions of the second reference signal within a time unit;

[0539] The number of the second reference signals within a time unit;

[0540] The time domain length of the second reference signal burst set;

[0541] The repetition information of the second reference signal;

[0542] The period of the second reference signal;

[0543] The start position, offset value, length, number, or end position of the second reference signal in the time domain;

[0544] The start position, offset value, length, number, or end position of the second reference signal burst set in the time domain.

[0545] 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.

[0546] Optionally, the receiving module 1401 is further configured to:

[0547] Receive first indication information sent by the network side device, where the first indication information is used to indicate that the network side device sends the first reference signal;

[0548] The first indication information includes at least one of the following:

[0549] The number of periods of the second reference signal;

[0550] The number of burst sets of the second reference signal;

[0551] The number of the second reference signals;

[0552] The reference signal pattern of the second reference signal;

[0553] The index of the second reference signal.

[0554] Optionally, the first indication information is carried by at least one of the following:

[0555] Radio Resource Control (RRC) message;

[0556] Downlink Control Information (DCI);

[0557] Medium Access Control Unit MAC CE.

[0558] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0559] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

[0560] Optionally, 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:

[0561] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8} + 14×n;

[0562] The index of the position of the first symbol of the candidate time domain position is {1, 5, 9} + 14×n;

[0563] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10} + 14×n;

[0564] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0565] 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;

[0566] Where n is an integer greater than or equal to 0.

[0567] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time domain positions of the second reference signal satisfy at least one of the following:

[0568] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10} + 14×n;

[0569] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8} + 14×n;

[0570] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 16, 20, 24} + 28×n;

[0571] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0572] 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;

[0573] where n is an integer greater than or equal to 0.

[0574] Optionally, when the second reference signal is a reference signal of 60 kHz or 240 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0575] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20} + 28×n;

[0576] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20} + 28×n;

[0577] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24} + 28×n;

[0578] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20} + 28×n;

[0579] 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;

[0580] where n is an integer greater than or equal to 0.

[0581] Optionally, when the second reference signal is a reference signal of 480 kHz or 960 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0582] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20} + 28×n;

[0583] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10} + 14×n;

[0584] where n is an integer greater than or equal to 0.

[0585] Optionally, the number of the second reference signals or the candidate transmission positions of the second reference signal in the reference signal pattern in a time unit satisfies at least one of the following:

[0586] The number of the second reference signals or the candidate transmission positions in 1 time unit is 3;

[0587] The number of the second reference signals or the candidate transmission positions in 2 consecutive time units is 5 or 7;

[0588] The number or candidate transmission positions of the second reference signal within a time unit is related to the reference signal pattern;

[0589] The number or candidate transmission positions of the second reference signal within a time unit is predefined by the protocol, preconfigured by the network side device, or configured by the network side device.

[0590] 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 transmitted within the first time window, before the first time length, or before the first time point;

[0591] The number of periods of the second reference signal is predefined by the protocol, preconfigured by the network side device, configured by the network side device, or dynamically indicated by the network side device.

[0592] Optionally, the number of the second reference signals satisfies at least one of the following:

[0593] When the first condition is satisfied, the number of the second reference signals is 1;

[0594] When the second condition is satisfied, the number of the second reference signals is greater than 1;

[0595] Wherein, the first condition includes at least one of the following:

[0596] The first reference signal is triggered for a specific terminal;

[0597] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction;

[0598] The cell related to the first reference signal is a known cell;

[0599] The first indication information carries quasi - co - location (QCL) information;

[0600] The first indication information indicates that the number of the second reference signals is 1;

[0601] The RRC configuration information indicates the number of the second reference signals;

[0602] The second condition includes at least one of the following:

[0603] The first reference signal is triggered for multiple terminals, or triggered by group common signaling;

[0604] The first reference signal is used for measurement reporting;

[0605] The cell related to the first reference signal is an unknown cell;

[0606] The first indication information does not carry QCL information;

[0607] The first indication information indicates that the number of the second reference signals is greater than 1.

[0608] Optionally, when 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:

[0609] The TCI state or QCL information reported by the terminal; RRC configuration information;

[0610] Or,

[0611] The transmission configuration indication TCI state of the first reference signal is the same as the TCI state of the first reference signal in the previous time.

[0612] Optionally, 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.

[0613] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0614] The burst set of the second reference signal is repeated within a period;

[0615] Specific reference signals in the burst set of the second reference signal are repeated.

[0616] Optionally, the period of the second reference signal satisfies at least one of the following:

[0617] The period of the second reference signal is A frames;

[0618] The period of the second reference signal is B half-frames;

[0619] The period of the second reference signal is C time units;

[0620] The period of the second reference signal is D symbols;

[0621] Candidate positions of the second reference signal exist on all time units within the period of one second reference signal;

[0622] Wherein, A, B, C, and D are integers greater than 0.

[0623] The receiving device for on-demand reference signals in the embodiments of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than terminals. Exemplarily, the terminal may include, but is not limited to, the types of terminal 11 listed above, and other devices may be servers, Network Attached Storage (NAS), etc., which are not specifically limited in the embodiments of the present application.

[0624] The receiving device for on-demand reference signals provided in the embodiments of the present application can implement Figure 12 each process implemented by the method embodiments shown and achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0625] As Figure 15 shown, the embodiments of the present application further provide a communication device 1500, including a processor 1501 and a memory 1502. A program or instruction that can run on the processor 1501 is stored on the memory 1502. For example, when the communication device 1500 is a terminal, when the program or instruction is executed by the processor 1501, each step of the above method embodiments is implemented and the same technical effects can be achieved. When the communication device 1500 is a network-side device, when the program or instruction is executed by the processor 1501, each step of the above method embodiments is implemented and the same technical effects can be achieved. To avoid repetition, it will not be elaborated here.

[0626] The embodiments of the present application further provide a network-side device, including a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement as Figure 2 shown in the steps of the method embodiments. The embodiments of this network-side device correspond to the method embodiments of the above network-side device. Each implementation process and implementation manner of the above method embodiments can be applied to the embodiments of this network-side device and the same technical effects can be achieved.

[0627] Specifically, the embodiments of the present application further provide a network-side device. As Figure 16 shown, the network-side device 1600 includes: an antenna 161, a radio frequency device 162, a baseband device 163, a processor 164, and a memory 165. The antenna 161 is connected to the radio frequency device 162. In the uplink direction, the radio frequency device 162 receives information through the antenna 161 and sends the received information to the baseband device 163 for processing. In the downlink direction, the baseband device 163 processes the information to be sent and sends it to the radio frequency device 162. After processing the received information, the radio frequency device 162 sends it out through the antenna 161.

[0628] In the above embodiments, the method executed by the network-side device may be implemented in the baseband device 163, which includes a baseband processor.

[0629] The baseband device 163 may include, for example, at least one baseband board, on which a plurality of chips are provided, such as Figure 16 shown, where 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 operations of the network device shown in the above method embodiments.

[0630] The network-side device may further include a network interface 166, which is, for example, a Common Public Radio Interface (CPRI).

[0631] Specifically, the network-side device 1600 in the embodiments of the present application further includes: instructions or programs stored on the memory 165 and executable on the processor 164. The processor 164 calls the instructions or programs in the memory 165 to execute Figure 13 the methods executed by the modules shown, and achieves the same technical effects. To avoid repetition, details are not described herein.

[0632] The embodiments of the present application further provide a terminal, including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the steps in the method embodiments as Figure 12 shown. This terminal embodiment corresponds to the above terminal-side method embodiments. The implementation processes and manners of the above method embodiments can all be applied to this terminal embodiment and can achieve the same technical effects. Specifically, Figure 17 FIG. is a schematic diagram of the hardware structure of a terminal for implementing the embodiments of the present application.

[0633] The terminal 1700 includes, but is not limited to, at least some components such as 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 a processor 1710.

[0634] Those skilled in the art can understand that the terminal 1700 may further include a power supply (such as a battery) for supplying power to each component. The power supply may be logically connected to the processor 1710 through a power management system, so as to implement functions such as management of charging, discharging, and power consumption management through the power management system. Figure 17 The terminal structure shown in FIG. does not limit the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements, which are not described herein again.

[0635] It should be understood that in the embodiments of the present application, the input unit 1704 may include a Graphics Processing Unit (GPU) 17041 and a microphone 17042. The graphics processor 17041 processes the image data of still pictures or videos obtained by an image capturing device (such as a camera) in the video capture mode or the 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, for example, a liquid crystal display, an organic light emitting diode, etc. The user input unit 1707 includes at least one of a touch panel 17071 and other input devices 17072. The touch panel 17071 is also referred to as a touch screen. The touch panel 17071 may include two parts: a touch detection device and a touch controller. The 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 elaborated here.

[0636] In the embodiments of the present application, after receiving downlink data from a network-side device, the radio frequency unit 1701 may transmit it to the processor 1710 for processing; in addition, the radio frequency unit 1701 may send uplink data to the network-side device. Generally, the radio frequency unit 1701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0637] The memory 1709 can be used to store software programs or instructions and various data. The memory 1709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data. Among them, the first storage area may store an operating system, application programs or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1709 may include a volatile memory or a non-volatile memory. Among them, 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. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM). The memory 1709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memories.

[0638] The processor 1710 may include one or more processing units; optionally, the processor 1710 integrates an application processor and a modem processor. Among them, the application processor mainly processes operations related to the operating system, user interface, and application programs, etc., and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above modem processor may not be integrated into the processor 1710 either.

[0639] Among them, the radio frequency unit 1701 is used to receive a first reference signal sent by a network-side device; the first reference signal includes at least one second reference signal;

[0640] The transmission of the first reference signal satisfies at least one of the following:

[0641] The number of cycles of the second reference signal is a first number;

[0642] The number of bursts of the second reference signal is the second number;

[0643] The number of the second reference signals is the third number;

[0644] The second reference signals are transmitted according to a reference signal pattern;

[0645] Wherein, the reference signal pattern includes at least one of the following:

[0646] Candidate time domain positions of the second reference signals within a time unit;

[0647] The number of the second reference signals within a time unit;

[0648] The time domain length of the second reference signal burst set;

[0649] The repetition information of the second reference signals;

[0650] The period of the second reference signals;

[0651] The start position, offset value, length, number or end position of the second reference signals in the time domain or frequency domain;

[0652] The start position, offset value, length, number or end position of the second reference signal burst set in the time domain or frequency domain.

[0653] 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.

[0654] Optionally, the radio frequency unit 1701 is further configured to:

[0655] Receive first indication information sent by the network side device, where the first indication information is used to indicate that the network side device sends the first reference signal;

[0656] The first indication information includes at least one of the following:

[0657] The number of periods of the second reference signals;

[0658] The number of bursts of the second reference signals;

[0659] The number of the second reference signals;

[0660] The reference signal pattern of the second reference signals;

[0661] The index of the second reference signals.

[0662] Optionally, the first indication information is carried by at least one of the following:

[0663] Radio Resource Control (RRC) message;

[0664] Downlink Control Information (DCI);

[0665] Medium Access Control (MAC) Control Element (CE).

[0666] Optionally, the first indication information is indicated according to at least one of the following granularities:

[0667] Beam; beam group; cell; cell group; area; terminal; terminal group; reference signal frequency point; reference signal frequency point group; measurement object; measurement object group.

[0668] Optionally, 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:

[0669] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n;

[0670] The index of the position of the first symbol of the candidate time-domain position is {1, 5, 9} + 14×n;

[0671] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n;

[0672] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0673] 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;

[0674] where n is an integer greater than or equal to 0.

[0675] Optionally, when the second reference signal is a 30 kHz or 120 kHz reference signal, the candidate time-domain positions of the second reference signal satisfy at least one of the following:

[0676] The index of the position of the first symbol of the candidate time-domain position is {2, 6, 10} + 14×n;

[0677] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8} + 14×n;

[0678] The index of the position of the first symbol of the candidate time-domain position is {0, 4, 8, 16, 20, 24} + 28×n;

[0679] The index of the position of the first symbol of the candidate time domain position is {2, 6, 10, 14, 18, 22} + 28×n;

[0680] 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;

[0681] Where n is an integer greater than or equal to 0.

[0682] Optionally, when the second reference signal is a reference signal of 60 kHz or 240 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0683] The index of the position of the first symbol of the candidate time domain position is {4, 8, 16, 20} + 28×n;

[0684] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20} + 28×n;

[0685] The index of the position of the first symbol of the candidate time domain position is {4, 8, 12, 16, 20, 24} + 28×n;

[0686] The index of the position of the first symbol of the candidate time domain position is {0, 4, 8, 12, 16, 20} + 28×n;

[0687] 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;

[0688] Where n is an integer greater than or equal to 0.

[0689] Optionally, when the second reference signal is a reference signal of 480 kHz or 960 kHz, the candidate time domain position of the second reference signal satisfies at least one of the following:

[0690] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10, 15, 20} + 28×n;

[0691] The index of the position of the first symbol of the candidate time domain position is {0, 5, 10} + 14×n;

[0692] Where n is an integer greater than or equal to 0.

[0693] Optionally, the number of the second reference signals or the candidate transmission positions of the second reference signal in the time unit in the reference signal pattern satisfies at least one of the following:

[0694] The number of the second reference signals or candidate transmission positions within one time unit is three;

[0695] The number of the second reference signals or candidate transmission positions within two consecutive time units is five or seven;

[0696] The number of the second reference signals or candidate transmission positions within a time unit is related to the reference signal pattern;

[0697] The number of the second reference signals or candidate transmission positions within a time unit is predefined by a protocol, preconfigured by a network-side device, or configured by a network-side device.

[0698] 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 signals are periodically transmitted within the first time window, before the first time length, or before the first time point;

[0699] The number of periods of the second reference signals 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.

[0700] Optionally, the number of the second reference signals satisfies at least one of the following:

[0701] When the first condition is satisfied, the number of the second reference signals is one;

[0702] When the second condition is satisfied, the number of the second reference signals is greater than one;

[0703] Wherein, the first condition includes at least one of the following:

[0704] The first reference signal is triggered for a specific terminal;

[0705] The first reference signal is used for at least one of synchronization, cell activation, cell deactivation, or measurement reporting in a specific beam direction;

[0706] The cell related to the first reference signal is a known cell;

[0707] The first indication information carries quasi-co-location (QCL) information;

[0708] The first indication information indicates that the number of the second reference signals is one;

[0709] The RRC configuration information indicates the number of the second reference signals;

[0710] The second condition includes at least one of the following:

[0711] The first reference signal is triggered for multiple terminals, or triggered by group common signaling;

[0712] The first reference signal is used for measurement reporting;

[0713] The cell associated with the first reference signal is an unknown cell;

[0714] The first indication information does not carry QCL information;

[0715] The first indication information indicates that the number of the second reference signals is greater than 1.

[0716] Optionally, when 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:

[0717] The TCI state or QCL information reported by the terminal; RRC configuration information;

[0718] Or,

[0719] The TCI state of the first reference signal is the same as the TCI state of the previous first reference signal.

[0720] Optionally, 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.

[0721] Optionally, the repetition information of the second reference signal includes at least one of the following:

[0722] The burst set of the second reference signal is repeated within one period;

[0723] A specific reference signal in the burst set of the second reference signal is repeated.

[0724] Optionally, the period of the second reference signal satisfies at least one of the following:

[0725] The period of the second reference signal is A frames;

[0726] The period of the second reference signal is B half-frames;

[0727] The period of the second reference signal is C time units;

[0728] The period of the second reference signal is D symbols;

[0729] Candidate positions of the second reference signal exist on all time units within one period of one second reference signal;

[0730] Wherein, A, B, C, and D are integers greater than 0.

[0731] It can be understood that the implementation processes of the various implementation manners mentioned in this embodiment may refer to Figure 2 the relevant descriptions of the method embodiments shown, and achieve the same or corresponding technical effects. To avoid repetition, they will not be elaborated here.

[0732] The embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0733] Among them, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disc, etc. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0734] The embodiment of the present application further provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run a program or instruction to implement each process of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0735] It should be understood that the chip mentioned in the embodiment of the present application may also be referred to as a system-on-chip, system chip, chip system or system-on-chip, etc.

[0736] The 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 each process of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0737] The embodiment of the present application further provides a wireless communication system, including: a terminal and a network-side device. The terminal can be used to execute the steps of the method embodiment for receiving a reference signal, and the network-side device can be used to execute the steps of the method embodiment for sending a reference signal.

[0738] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising such 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 a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0739] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. This computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disc, etc.) and includes several instructions for causing a terminal or a network-side device to execute the methods described in various embodiments of the present application.

[0740] The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms of embodiments without departing from the spirit of the present application and the scope protected by the claims. These embodiments are all within the protection scope of the present application.

Claims

1. A method for transmitting a reference signal, characterized in that Comprising: 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 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.

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, characterized in that 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 are pre-defined by the protocol, pre-configured by the network-side device or configured by the network-side device.

11. The method according to any one of claims 1-10, characterized in that 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 side device, configured by the network side device or dynamically indicated by the network side device.

12. The method according to any one of claims 1-11, characterized in that 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 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 associated with 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. The method according to claim 12, characterized in that 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. The method according to any one of claims 1-13, characterized in that the number of burst sets of the second reference signal is predefined by the protocol, preconfigured by the network side device, configured by the network side device or dynamically indicated by the network side device.

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

16. The method according to any one of claims 1-15, characterized in that 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; Among them, A, B, C, and D are integers greater than 0.

17. A method for receiving a reference signal, characterized in that It includes: 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 sent according to a reference signal pattern; Among them, 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, pre-configured 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, characterized in that 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 the network-side device to send 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 or candidate transmission positions of the second reference signal in the reference signal pattern within a time unit satisfy at least one of the following: the number or candidate transmission positions of the second reference signal within 1 time unit is 3; the number or candidate transmission positions of the second reference signal within 2 consecutive time units is 5 or 7; the number or candidate transmission positions of the second reference signal within a time unit is related to the reference signal pattern; The number or candidate transmission positions of the second reference signal within a time unit are predefined by a protocol, preconfigured by a network device, or configured by a network device.

27. The method according to any one of claims 17 - 26, characterized in that 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 a protocol, preconfigured by a network device, configured by a network device, or dynamically indicated by a network device.

28. The method according to any one of claims 17 - 27, characterized in that 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 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 associated with 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.

29. The method according to claim 28, characterized in that 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; 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, characterized in that the number of burst sets of the second reference signal is predefined by a protocol, preconfigured by a network device, configured by a network device, or dynamically indicated by a network device.

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

32. The method according to any one of claims 17 - 31, characterized in that 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 at all time units within one period of the second reference signal; Wherein, A, B, C, and D are integers greater than 0.

33. A transmitting device for a reference signal, characterized in that, It includes: A transmitting module, configured to transmit a first reference signal to a terminal; 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 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, characterized in that, It includes: 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 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.

35. A network-side device, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the reference signal transmission method according to any one of claims 1 to 16 are implemented.

36. A terminal, characterized in that, It includes a processor and a memory, and the memory stores a program or instruction that can run on the processor. When the program or instruction is executed by the processor, the steps of the reference signal reception method 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. When the program or instruction is executed by a processor, the reference signal transmission method according to any one of claims 1 to 16 is implemented, or the steps of the reference signal reception method according to any one of claims 17 to 32 are implemented.

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