Communication method and apparatus, and storage medium

Abstract

The present disclosure relates to the technical field of communications. Provided in the embodiments are a communication method and apparatus, and a storage medium. The method comprises: receiving configuration information of a first reference signal; and processing the first reference signal on the basis of the configuration information of the first reference signal.

Description

Communication method, device and storage medium

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on February 2, 2024, with application number 202410157001.0 and invention name “Communication Method, Device and Storage Medium”. The entire contents of the application are incorporated by reference into this application. Technical Field

[0003] The present disclosure relates to the field of communication technologies, and in particular to a communication method, device, and storage medium. Background Art

[0004] In wireless communications, signals are affected by various factors during transmission, such as multipath and channel fading. These factors can cause changes in the signal's amplitude, phase, and frequency. To better process, demodulate, and decode signals, optimize communication performance, and improve system capacity and security, terminals must perform signal processing, such as channel estimation. Currently, reference signals lack flexibility, resulting in high system overhead. Terminals also lack the ability to select reference signals based on real-time conditions, impacting reference signal performance.

[0005] Summary of the Invention

[0006] Embodiments of the present disclosure provide a communication method, apparatus, and storage medium for improving signal processing performance or reducing overhead.

[0007] In order to achieve the above objectives, the present disclosure adopts the following technical solutions:

[0008] In a first aspect, a communication method is provided, applied to a first node, the method comprising: receiving configuration information of a first reference signal; and processing the first reference signal based on the configuration information of the first reference signal.

[0009] In a second aspect, a communication method is provided, which is applied to a second node. The method includes: sending configuration information of a first reference signal; and processing the first reference signal based on the configuration information of the first reference signal.

[0010] According to a third aspect, a communication device is provided, which is applied to a first node. The device includes: a receiving unit for receiving configuration information of a first reference signal; and a processing unit for processing the first reference signal based on the configuration information of the first reference signal.

[0011] In a fourth aspect, a communication device is provided, which is applied to a second node. The device includes: a sending unit, which is used to send configuration information of a first reference signal; and a processing unit, which is used to process the first reference signal based on the configuration information of the first reference signal.

[0012] In a fifth aspect, a communication device is provided, comprising: a processor and a memory; the memory and the processor are coupled; the memory is used to store instructions executable by the processor, and the memory stores instructions executable by the processor; when the processor is configured to execute the instructions, the communication device implements the method provided in any one of the first or second aspects above.

[0013] In a sixth aspect, a computer-readable storage medium is provided, which stores computer instructions. When the computer instructions are executed on a computer, the computer executes the method provided in either the first aspect or the second aspect.

[0014] In a seventh aspect, a computer program product comprising computer instructions is provided, which, when executed on a computer, enables the computer to execute the method provided in either the first aspect or the second aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solution of the present application and do not constitute a limitation on the technical solution of the present application.

[0016] FIG1 is a schematic diagram of the structure of a DMRS for a PDSCH in 5G according to an embodiment of the present disclosure;

[0017] FIG2 is a schematic diagram of the structure of another DMRS for PDSCH in 5G provided by an embodiment of the present disclosure;

[0018] FIG3 is a schematic diagram of a DMRS configuration provided by an embodiment of the present disclosure;

[0019] FIG4 is a schematic diagram of another configuration of a DMRS provided in an embodiment of the present disclosure;

[0020] FIG5 is a schematic diagram of the structure of a DMRS of a PDCCH provided by an embodiment of the present disclosure;

[0021] FIG6 is a schematic structural diagram of a communication system provided by an embodiment of the present disclosure;

[0022] FIG7 is a flow chart of a communication method provided by an embodiment of the present disclosure;

[0023] FIG8 is a schematic structural diagram of a first reference signal provided by an embodiment of the present disclosure;

[0024] FIG9 is a schematic diagram of determining a pattern of a second reference signal according to a pattern of a first reference signal according to an embodiment of the present disclosure;

[0025] FIG10 is a schematic diagram of another method for determining a pattern of a second reference signal according to a pattern of a first reference signal according to an embodiment of the present disclosure;

[0026] FIG11 is a schematic diagram of another configuration of a DMRS according to an embodiment of the present disclosure;

[0027] FIG12 is a schematic diagram of another configuration of a DMRS provided in an embodiment of the present disclosure;

[0028] FIG13 is a schematic diagram of a third indication information provided by an embodiment of the present disclosure;

[0029] FIG14 is a schematic diagram of another configuration of a DMRS provided in an embodiment of the present disclosure;

[0030] FIG15 is a schematic diagram of another configuration of a DMRS provided in an embodiment of the present disclosure;

[0031] FIG16 is a schematic diagram of a predefined resource provided by an embodiment of the present disclosure;

[0032] FIG17 is a schematic diagram of a two-resource configuration provided by an embodiment of the present disclosure;

[0033] FIG18 is a schematic diagram of a training resource and a feedback resource provided by an embodiment of the present disclosure;

[0034] FIG19 is a flow chart of another communication method provided by an embodiment of the present disclosure;

[0035] FIG20 is a schematic diagram of the composition of a communication device provided in an embodiment of the present disclosure;

[0036] FIG21 is a schematic diagram of the composition of another communication device provided in an embodiment of the present disclosure;

[0037] FIG22 is a schematic structural diagram of a communication device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present disclosure.

[0039] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and its other forms, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open and inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" are intended to indicate that the particular features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this disclosure, unless otherwise specified, "plurality" means two or more.

[0041] In the embodiments of the present disclosure, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present disclosure should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0042] Additionally, the use of “based on” is meant to be open and inclusive, as a process, step, calculation, or other action “based on” one or more stated conditions or values ​​may, in practice, be based on additional conditions or values ​​beyond those stated.

[0043] With the continuous development of communication technology, from the second generation of mobile communication technology to the fifth generation of mobile communication technology, the performance and efficiency of communication systems have been significantly improved. However, with the ever-increasing demand for communication, existing communication technologies have become unable to meet the increasingly complex communication needs. Especially in urban environments, high-rise buildings, dense crowds, and diverse business needs pose enormous challenges to communication. Therefore, to meet future communication needs, communication methods for the sixth generation of mobile communication technology (6G) are urgently needed to be proposed and implemented. Taking Table 7.4.1.1.2-3: PDSCH DM-RS positions for single-symbol DM-RS in the existing communication protocol as an example, Figure 1 is a schematic structural diagram of the DMRS of the PDSCH in the fifth-generation mobile communication technology (5G) provided by an embodiment of the present disclosure. Referring to Figure 1, the DMRS positions include PDSCH time domain resource mapping type A (PDSCH mapping type A) and PDSCH time domain resource mapping type B (PDSCH mapping type B), and both Type A and Type B include additional DMRS positions (Dmrs-Addition Position). As can be seen from Figure 1, when the Dmrs-Addition Position is 0 in Type A, there is only a front-loaded DMRS. When the Dmrs-Addition Position is 3 and the symbols are 10, there is one front-loaded DMRS and two additional DMRSs. When the Dmrs-Addition Position is 3 and the symbols are 12, there is one front-loaded DMRS and three additional DMRSs. When the Dmrs-Addition Position is 2 and the symbols are 14, referring to Figure 1 again, it can be seen that there is one column of front-loaded DMRS and two columns of additional DMRS.

[0044] Taking the DMRS positions for single-symbol DM-RS in Table 7.4.1.1.2-4 of the existing communication protocol as an example, Figure 2 shows another schematic diagram of the DMRS structure for PDSCH in 5G according to an embodiment of the present disclosure. Referring to Figure 2, when the Dmrs-Addition Position is 0 in Type A, there is only a front-loaded DMRS. When the Dmrs-Addition Position is 1 and the symbols is 14, it can be seen that there are two columns of front-loaded DMRS and two columns of additional DMRS.

[0045] Figure 3 is a schematic diagram of a DMRS configuration provided by an embodiment of the present disclosure. The DMRS configuration in Figure 3 is Configuration type 1, double-symbol DMRS. Referring to Figure 3 , antenna ports corresponding to code division multiplexing group (CDM group 0) are 1000, 1001, 1004, and 1005, while antenna ports corresponding to CDM group 1 are 1002, 1003, 1006, and 1007. Figure 4 is a schematic diagram of another DMRS configuration provided by an embodiment of the present disclosure. The DMRS configuration in Figure 4 is configuration type 2, double-symbol DMRS (Configuration type 2, double-symbol DMRS). Referring to Figure 4, the antenna ports corresponding to CDM group 0 are 1000, 1001, 1006, and 1007, the antenna ports corresponding to CDM group 1 are 1002, 1003, 1008, and 1009, and the antenna ports corresponding to CDM group 2 are 1004, 1005, 1010, and 1011.

[0046] Figure 5 is a schematic diagram of the structure of a physical downlink control channel (PDCCH) DMRS according to an embodiment of the present disclosure. Referring to Figure 5 , in the frequency domain, the DMRS includes a 1-Symbol control information resource set (CORESET), a 1-Symbol CORESET, and a 3-Symbol CORESET. As can be seen from Figure 5 , the DMRS occupies 25% of the resource elements (REs), also referred to as "DMRS Occupy 25% of REs" in Figure 5 .

[0047] As can be seen from Figures 1 to 5 above, the current DMRS configuration is not flexible enough, resulting in high resource overhead and limited flexibility. Improving signal processing flexibility, reducing reference signal overhead, and providing sufficient flexibility in 6G are urgent issues that need to be addressed.

[0048] Based on this, the embodiments of the present disclosure provide a communication method, device and storage medium, which process the first reference signal based on the configuration information of the first reference signal, so that the configuration of the first reference signal is more flexible, helps to improve the performance of signal processing by the first node, reduces the reference signal overhead, and provides sufficient flexibility.

[0049] The following describes the solutions of the embodiments of the present disclosure in conjunction with the accompanying drawings.

[0050] The technical solutions provided by the embodiments of the present disclosure can be applied to various mobile communication networks, for example, new radio (NR) mobile communication networks using fifth-generation mobile communication technology (5G), future mobile communication networks (6G wireless communication systems) or multiple communication convergence systems, etc., and the embodiments of the present disclosure are not limited to this.

[0051] In some embodiments, the technical solution provided by the embodiments of the present disclosure can be applied to 6G-oriented channel estimation.

[0052] Figure 6 is a schematic diagram of the structure of a communication system provided by an embodiment of the present disclosure. As shown in Figure 6, the communication system includes, but is not limited to, a first node 110 and a second node 120. Specifically, the first node 110 and the second node 120 can transmit and receive wireless signals, and perform related interactions.

[0053] In a wireless communication scenario, a first node 110 and a second node 120 communicate via a wireless channel. For example, the first node 110 is a terminal and the second node 120 is a base station, and the terminal and the base station communicate via a wireless channel. In another example, the first node 110 is a terminal and the second node 120 is a wireless router, and the wireless router and the terminal communicate via a wireless channel. In another example, the first node 110 is a first base station and the second node 120 is a second base station, and the first base station and the second base station communicate via a wireless channel. In another example, the first node 110 is a first terminal and the second node 120 is a second terminal, and the first terminal and the second terminal communicate via a wireless channel. In another example, the first node 110 is a repeater and the second node 120 is a base station, and the base station and the repeater communicate via a wireless channel. In another example, the first node 110 is a terminal and the second node 120 is a repeater, and the repeater and the terminal communicate via a wireless channel. For another example, the first node 110 is a first relay, the second node 120 is a second relay, and the first relay and the second relay communicate via a wireless channel. For another example, the first node 110 is a base station, the second node 120 is a satellite, and the satellite and the base station communicate via a wireless channel. For another example, the first node 110 is a satellite, the second node 120 is a base station, and the base station and the satellite communicate via a wireless channel. For another example, the first node 110 is a terminal, the second node 120 is a satellite, and the satellite and the terminal communicate via a wireless channel. For another example, the first node 110 is a satellite, the second node 120 is a terminal, and the terminal and the satellite communicate via a wireless channel. For another example, the first node 110 is a ground device, the second node 120 is an aircraft, and the aircraft and the ground device communicate via a wireless channel. For another example, the first node 110 is a first aircraft, the second node 120 is a second aircraft, and the first aircraft and the second aircraft communicate via a wireless channel.

[0054] The "first" node, "second" node, "first" way, "second" way, "first" method, "second" method, "first" matrix, "second" matrix, "first" part, "second" part in this disclosure, unless otherwise specified, are only used to distinguish between the descriptions and do not represent the order of before and after or sequence.

[0055] In the embodiment of the present disclosure, the first node and the second node may also have other names. For example, the first node may also be called a first communication node, and the second node may also be called a second communication node, etc. The embodiment of the present disclosure does not limit this.

[0056] In some embodiments, the base station may be any of an evolution nodeB (eNB), a next generation nodeB (gNB), a transmission receive point (TRP), a transmission point (TP), a relay node, an intelligent metasurface, and some other access node. Depending on the size of the service coverage area provided, the base station can be further divided into a macro base station for providing macro cells, a micro base station for providing micro cells, and a femto base station for providing femto cells. With the continuous evolution of wireless communication technology, future base stations may also adopt other names.

[0057] In some embodiments, the terminal may be a device with wireless transceiver capabilities, such as a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), an Internet of Things terminal, etc. The embodiments of the present disclosure do not limit the specific type of the terminal.

[0058] It should be understood that FIG6 is an exemplary structural diagram, and the number of devices included in the communication system shown in FIG6 is not limited. For example, the number of first nodes and second nodes is not limited. Moreover, in addition to the devices shown in FIG6, the communication system shown in FIG6 may also include other devices, which is not limited.

[0059] Next, as shown in FIG7 , an embodiment of the present disclosure provides a communication method, which is applied to a first node. The first node may be the first node 110 shown in FIG6 . The method includes the following steps:

[0060] Step S101: Receive configuration information of a first reference signal.

[0061] Step S102: Process the first reference signal based on the configuration information of the first reference signal.

[0062] In some embodiments, to improve the signal processing performance of the first node, the second node transmits configuration information for the first reference signal. Accordingly, the first node receives the configuration information for the first reference signal transmitted by the second node. The second node may be the second node 120 shown in FIG. 6 . For ease of description, the following examples utilize the first node as a terminal and the second node as a base station.

[0063] In some embodiments, the first reference signal is a DMRS.

[0064] In some embodiments, the first reference signal may also be a measurement reference signal (MRS) or an interference measurement reference signal (IMRS).

[0065] In some embodiments, the first reference signal includes a positioning reference signal, a synchronization signal, a sounding reference signal, a phase tracking reference signal, a channel state measurement CSI reference signal, an interference measurement reference signal, and a remote interference management (RIM) reference signal. The synchronization signal includes a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a low power synchronization signal (LP-SS).

[0066] In some embodiments, the first reference signal is processed, where the processing includes receiving, detecting, transmitting, sending, training, supervising, and inferring. Exemplarily, for processing the first reference signal, the first node may receive or detect the first reference signal, or may perform training, supervision, or inference on the first reference signal to obtain another reference signal.

[0067] In some embodiments, the configuration information of the first reference signal includes the location of resource units of the first reference signal, where the resource units include a first resource unit and a second resource unit. The first resource unit is used to carry the first reference signal with non-zero power, and the second resource unit is used to carry the first reference signal with zero power; or the first resource unit and the second resource unit are used to carry the first reference signal with non-zero power; or the first resource unit is used to transmit a data channel and the first reference signal, and the second resource unit is used to transmit the first reference signal, that is, the first reference signal and the data channel can reuse the same resource element (RE); or the port corresponding to the first resource unit is the same as the port corresponding to the data channel, and the port corresponding to the second resource unit is different from the port corresponding to the data channel; or the location of the second resource unit is determined based on the location of the first resource unit; or the location of the second resource unit is a subset of the location of the first resource unit; or the location of the second resource unit does not overlap with the location of the first resource unit; or the location of the first resource unit and the location of the second resource unit are continuous in the time domain or the frequency domain; or the number of second resource units is determined based on the number of first resource units; or the sum of the number of second resource units and the number of first resource units is a specific value; or the number of second resource units is ratioed to the number of first resource units. The ratio relationship may include at least one of the following: 1 / 2, 1 / 3, 1 / 4. In some embodiments, the data channel includes a physical shared channel, a downlink physical shared channel, an uplink physical shared channel, a downlink data channel, and an uplink data channel.

[0068] Taking the example of a first resource unit being used to carry a non-zero power first reference signal and a second resource unit being used to carry a zero power first reference signal, as shown in FIG8 , it is an exemplary structural diagram of a first reference signal provided by an embodiment of the present disclosure. Referring to FIG8 , the first reference signal includes a zero-power RE (i.e., the second resource unit) and a non-zero power RE (i.e., the first resource unit). Zero power RE in FIG8 represents a zero-power RE, and Non-Zero power RE represents a non-zero power RE. It should be understood that the current DMRS structure is divided into two types, one is composed of non-zero power REs, and the other is composed of zero power REs, but they have different uses. Therefore, the technical solution of the embodiment of the present disclosure proposes that the first resource unit is used to carry a non-zero power first reference signal, and the second resource unit is used to carry a zero power first reference signal, so that the first node can complete multiple functions based on one reference signal. In order to reduce the overhead of the second node and the receiving power consumption of the first node.

[0069] As an example, the configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit. Exemplarily, the first parameter is used to determine the time domain position and frequency domain position of the first resource unit, and the second parameter is used to determine the time domain position and frequency domain position of the second resource unit. The time domain position can be based on a time slot (slot), and the frequency domain position can be based on a resource block (RB).

[0070] In some embodiments, there is an offset between the power of the first resource unit and the power of the second resource unit; or, the power of the second resource unit is obtained based on the power of the first resource unit; or, there is a correlation between the power of the first resource unit and the power of the second resource unit.

[0071] In some embodiments, the position of the second resource unit is determined according to the second parameter and the first parameter; or, the second parameter and the first parameter are associated with each other.

[0072] In some embodiments, the first parameter and the second parameter are configured based on different signaling. As one possible example, the first parameter is a parameter configured by RRC, and the second parameter is a parameter determined by DCI or MAC CE. As another possible example, the first parameter is a parameter configured by RRC, and the second parameter is a parameter configured by RRC.

[0073] As another example, the configuration information of the first reference signal includes a third parameter and a fourth parameter, where the third parameter is used to indicate the location of the resource unit of the first reference signal, and the fourth parameter is used to indicate the location of the first resource unit or the location of the second resource unit. Exemplarily, the third parameter is used to determine the time domain location and frequency domain location of all resource units of the first reference signal, and the fourth parameter is used to determine the time domain location and frequency domain location of the first resource unit, or to determine the time domain location and frequency domain location of the second resource unit.

[0074] As another example, the configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

[0075] As an example, functions or uses include modulation and demodulation, positioning, synchronization, channel sounding, phase tracking, channel measurement, interference measurement, long-range jamming principle, training, supervision, and reasoning. Types include reference signal types based on different functions or uses, or different pattern types.

[0076] As another example, the configuration information of the first reference signal includes a pattern of the first reference signal, and the pattern of the first reference signal is used to indicate the location of the resource unit of the first reference signal. The pattern of the first reference signal includes a first pattern and / or a second pattern. It should be noted that the indication in the embodiments of the present disclosure can be replaced by determination. For example, the first reference signal pattern used to indicate the location of the resource unit of the first reference signal can be replaced by the first reference signal pattern used to determine the location of the resource unit of the first reference signal. Indication and determination can refer to the same concept.

[0077] As an example, the location of a resource unit includes a time domain location, a frequency domain location, and a spatial domain location. The time domain location includes at least one of the symbol starting position, number, symbol position, interval, and duration in the time domain. The frequency domain location includes at least one of the starting position, number, and interval of RBs / REs in the time domain. The spatial domain location includes the beam direction, beam index, number of beams, the position of each beam in the time domain, and the port number.

[0078] In some embodiments, the positions of the resource units of the first pattern are used to transmit data channels and first reference signals, and the positions of the resource units of the second pattern are used to transmit the first reference signal, that is, the data channels and the first reference signal can multiplex the positions of the resource units of the first pattern; or, the first pattern and the second pattern are used to carry first reference signals with non-zero power; or, the first pattern is used to transmit data channels and the first reference signal, and the second pattern is used to transmit the first reference signal, that is, the data channels and the first reference signal can multiplex the first pattern; or, the position of the second resource unit determined by the second pattern is a subset of the first resource unit determined by the first pattern; or, there is no overlap between the position of the second resource unit determined by the second pattern and the position of the first resource unit determined by the first pattern; or, the position of the first resource unit determined by the first pattern and the position of the second resource unit determined by the second pattern are continuous in the time domain or the frequency domain.

[0079] As can be seen from the above, different patterns may have different functions. For example, some patterns may only include zero-power resource units, some patterns may only include non-zero-power resource units, and some patterns may include both zero-power resource units and non-zero-power resource units.

[0080] In some embodiments, when the configuration information of the first reference signal includes a pattern of the first reference signal, after receiving the configuration information of the first reference signal, the first node may further receive first indication information sent by the second node. The first indication information is used to activate or deactivate the pattern of the first reference signal; or the first indication information is used to activate or deactivate or determine a subset of resource elements of the pattern of the first reference signal; or the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or the pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one of the patterns of the first reference signal.

[0081] It should be understood that different patterns can have different functions, including positioning, demodulation, etc. Uplink and downlink patterns can have different patterns. For example, the uplink PUSCH has a corresponding DMRS pattern, and the downlink PDSCH has a corresponding DMRS pattern, which may be the same or different.

[0082] In some embodiments, when the configuration information of the first reference signal includes a pattern of the first reference signal, after receiving the configuration information of the first reference signal, the first node may determine the pattern of the second reference signal based on the pattern of the first reference signal; or the first node receives second indication information sent by the second node, and the second indication information is used to determine the pattern of the second reference signal. The pattern of the second reference signal is a subset of the pattern of the first reference signal; or the pattern of the first reference signal is a subset of the pattern of the second reference signal; or the pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in the time domain, or are continuous in the frequency domain; or there is an association between the pattern of the first reference signal and the pattern of the second reference signal.

[0083] For example, taking the example that the pattern of the second reference signal is a subset of the pattern of the first reference signal, determining the pattern of the second reference signal according to the pattern of the first reference signal can be based on the pattern of the first reference signal, determining the resource units retained in the pattern of the first reference signal, and using the resource units retained in the pattern of the first reference signal as the pattern of the second reference signal. Specifically, the starting RE, interval, and offset of the pattern of the first reference signal are determined. Exemplarily, as shown in Figure 9, a schematic diagram of determining the pattern of the second reference signal according to the pattern of the first reference signal is provided in an embodiment of the present disclosure. Referring to Figure 9, assuming that the starting RE of the pattern of the first reference signal is the first RE, the interval is one RE, and the offset is one RE, and then the above-mentioned RE is retained, the pattern of the second reference signal is obtained.

[0084] For another example, taking the example that the pattern of the second reference signal is a subset of the pattern of the first reference signal, determining the pattern of the second reference signal based on the pattern of the first reference signal can be based on the pattern of the first reference signal, determining the resource units to be removed from the pattern of the first reference signal, and then removing the resource units to be removed from the pattern of the first reference signal to obtain the pattern of the second reference signal. Specifically, the starting RE, interval, and offset of the pattern of the first reference signal are determined. Exemplarily, as shown in Figure 10, another schematic diagram of determining the pattern of the second reference signal based on the pattern of the first reference signal provided in an embodiment of the present disclosure is shown. Referring to Figure 10, assuming that the starting RE of the pattern of the first reference signal is the first RE, the interval is one RE, and the offset is one RE, then the above-mentioned RE is removed to obtain the pattern of the second reference signal.

[0085] In some embodiments, the pattern of the first reference signal may have the following configurations.

[0086] Configuration 1: DMRS is placed at the top corner of the resource, which can be shown as the left side of Figure 11. Alternatively, when DMRS is placed at the top corner of the resource and has a symmetrical relationship, which can be shown as the right side of Figure 11.

[0087] Configuration 2: When the coherence time and coherence bandwidth are maximized, the pilots are placed at an angle or near a corner, as shown in FIG12 .

[0088] Configuration 3: Different numbers of REs are placed in different subbands. A small number of REs are placed in low-frequency bands, and a large number of REs are placed in high-frequency bands.

[0089] In some embodiments, the first reference signal or the second reference signal is used for at least one of: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

[0090] As another example, the configuration information of the first reference signal includes third indication information, and the third indication information is used to indicate at least one of the following: the starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position. The frequency domain starting position can be a subcarrier, and the time domain starting position can be a symbol position. The frequency domain interval includes a frequency domain interval parameter or a parameter used to determine the frequency domain interval, and the time domain interval includes a time domain interval parameter or a parameter used to determine the time domain interval. The sequence length can be used to determine the end position of the first reference signal.

[0091] In some embodiments, the third indication information may also be used to indicate the number of symbols, and the number of symbols may also be used to determine the end position of the first reference signal.

[0092] As an example, as shown in Figure 13, a schematic diagram of third indication information provided in an embodiment of the present disclosure is provided. Referring to Figure 13, the third indication information indicates that the frequency domain interval of the first reference signal is 3 or 4, the time domain interval is 1 or 2, the sequence length of the first reference signal is 6, and the number of symbols is 2. The starting position of the first reference signal can be determined to be the RE in the lower left corner of Figure 13.

[0093] In some embodiments, the third indication information includes at least one of the following: first bitmap information, the first bitmap information is used to indicate the above-mentioned frequency domain starting position, frequency domain interval and the number of frequency domain resources; second bitmap information, the second bitmap information is used to indicate the above-mentioned time domain starting position, time domain interval and the number of time domain resources; pattern index indication information, wherein the pattern index can be a pattern index within a physical resource block (PRB), or a pattern index of a first reference signal, and the pattern index indication information includes the target channel bandwidth occupied by the first reference signal.

[0094] Exemplarily, the first bitmap information indicates frequency domain resources, including the frequency domain starting position and the number of frequency domain resources, such as the number of RBs and RBGs. The second bitmap information indicates time domain resources, including the time domain starting position and the number of time domain resources, such as the number of symbols, the number of slots, and the number of repetitions. The pattern index information is used to determine an index that points to or is associated with a pattern for determining the location of a resource element of the first reference signal.

[0095] In some embodiments, the third indication information may further include at least one of the following: an identifier of the first reference signal pattern, power, port, starting position, time-frequency interval, sequence identifier of the first reference signal, optical orthogonal code (OOC) length, PRB indication and intra-PRB indication, quasi co-location (QCL) relationship, interference strength, and interference distribution. The OOC length is used to determine the number of RE occupancy.

[0096] As a possible example, the position of the resource unit of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: time domain resources; frequency domain resources; subcarrier spacing; frequency point location; carrier information; cell information; time domain location; antenna port information data channel transmission method; whether data is transmitted at the location of the resource unit of the first reference signal; the purpose of the first reference signal, including training, supervision or inference; a first specific condition, wherein the first specific condition is based on (including) at least one of the following: threshold value; parameter value; mobility; stationary; non-acknowledgment (NACK) message; deactivation signaling; timer.

[0097] That is, the first specific condition includes at least one of the following: whether the threshold value is met; whether the parameter value is met; whether the mobility is met; whether the stationary state is met; whether a NACK message is fed back or sent; whether a deactivation signaling is received; whether a timer times out.

[0098] In some embodiments, the antenna port information includes: the number of antenna ports; the antenna port number or index; or the antenna port type.

[0099] In some embodiments, a time node and the aforementioned time domain location are the same, both being used to determine at least one time domain location. A time node or time domain location includes at least one of the following information: a start time point, a reference time point, a time period, an end time point, a period, and an offset. A time node or time domain location is defined based on a time unit, such as milliseconds, microseconds, seconds, symbols, time slots, subframes, radio frames, superframes, or a basic time unit T.

[0100] In some embodiments, the cell information includes at least one of the following information: serving cell information, secondary cell (SCell) information, cell identifier, neighboring cell, intra-frequency cell, inter-frequency cell, virtual cell, physical cell identifier PCI, or a list based on the above information.

[0101] In some embodiments, whether data is transmitted at the location of the resource element of the first reference signal corresponds to different patterns or locations of the resource elements of the first reference signal.

[0102] In some embodiments, the first node may determine or correspond to different patterns or locations of resource units of the first reference signal according to the usage of the first reference signal.

[0103] In some embodiments, after receiving the configuration information of the first reference signal, the first node may process the first reference signal based on the configuration information of the first reference signal. The first node processing the first reference signal may be the first node receiving the first reference signal.

[0104] For example, taking the example that the configuration information of the first reference signal includes the location of the resource unit of the first reference signal, the first node processes the first reference signal based on the configuration information of the first reference signal. The first node may receive the first reference signal at a corresponding location based on the location of the resource unit of the first reference signal included in the configuration information of the first reference signal.

[0105] For another example, taking the example where the configuration information of the first reference signal includes the pattern of the first reference signal, the first node processes the first reference signal based on the configuration information of the first reference signal. The first node may determine the number of resource units of the first reference signal based on the pattern of the first reference signal, and then receive the first reference signal based on the number of resource units of the first reference signal, the pattern of the first reference signal and the preset rules.

[0106] As a possible example, the preset rule includes: frequency domain first, then time domain. For example, the frequency domain can be padded to X REs, and then shifted and / or replicated in the time domain. As an example, as shown in Figure 14, replication is performed in the time domain. The number of REs is 8. When the number of REs is 4, only the first symbol has DMRS. It should be noted that when the preset rule includes frequency domain first, then time domain, the following restriction applies: the number of configured REs must be the same in each symbol.

[0107] As another possible example, the preset rule includes: resource units based on the pattern of the first reference signal are extended to the time and frequency domains respectively. The granularity of the extension includes an interval in the time domain and an interval in the frequency domain.

[0108] For example, as shown in Figure 15, the time-frequency domains have the same intervals, and multiple resource units based on the pattern of the first reference signal are extended separately. Referring to Figure 15, the intervals of the high frequency band are smaller, and the intervals of the low frequency band are larger.

[0109] It should be noted that the pattern of the first reference signal includes a processed pattern and a default pattern. The processed pattern may be a pattern processed by artificial intelligence (AI). The processed pattern and the default pattern may be configured by different parameters. For example, the processed pattern may be configured by the seventh parameter, and the default pattern may be configured by the eighth parameter. The processed pattern may be a pilot set obtained according to the AI, and the default pattern may be a predefined pilot set. The processed pattern may be a sparse pattern, and the default pattern may be a dense pattern, wherein the frequency domain interval and the time domain interval of the sparse pattern are larger than the frequency domain interval and the time domain interval of the dense pattern, and the number of REs of the sparse pattern is less than the number of REs of the dense pattern. The default pattern may also have other names, such as a predefined pattern, a fallback pattern, a conventional pattern, etc., which are not limited in the embodiments of the present disclosure.

[0110] In some embodiments, the first node can obtain multiple candidate patterns based on AI and then send the multiple candidate patterns to the second node. After receiving the multiple candidate patterns, the second node can determine the target pattern from the multiple candidate patterns, that is, the processed pattern mentioned above, and then send the processed pattern to the first node. The second node can also obtain a processed pattern based on AI and then send the processed pattern to the first node.

[0111] In some embodiments, after receiving the first reference signal based on configuration information of the first reference signal, the first node may perform channel estimation based on the first reference signal.

[0112] In the embodiment of the present disclosure, the first reference signal is processed based on the configuration information of the first reference signal, that is, the first reference signal is received based on the configuration information of the first reference signal, so that the configuration of the first reference signal is more flexible, which helps to improve the performance of the first node in signal processing and reduce the overhead of the reference signal.

[0113] In some embodiments, improving signal processing performance primarily relies on processing reference signals. For example, measurement performance can be improved by configuring different reference signals in the time domain. For example, PUSCH transmission performance can be improved by enabling the first node to select from among the configured first reference signals.

[0114] In some embodiments, the first node further requires at least one of the following information for processing the first reference signal: motion speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integration, multiple-input multiple-output (MIMO), number of MIMO layers, reconfigurable intelligent surface (RIS) parameters, sequence, subband information, and scheduling information. MIMO includes distributed MIMO, centralized MIMO, 3D MIMO, massive MIMO, small-scale MIMO, RIS MIMO, and non-RIS MIMO.

[0115] In some embodiments, at least one of the above-mentioned information is transmitted based on at least one of the following: radio resource control (RRC) signaling, media access control control element (MAC CE) signaling, downlink control information (DCI), low power wake-up signal (LP-WUS), physical downlink shared channel (PDSCH), system information (SI); or, at least one of the above-mentioned information is transmitted through the configuration information of the first reference signal, that is, the above-mentioned at least one of the information is carried in the configuration information of the first reference signal.

[0116] In some embodiments, the at least one item of information described above can be used to train the first reference signal and / or a pattern for training the first reference signal. The at least one item of information described above can be used to train the first reference signal and / or a pattern for training the first reference signal, and can be the first node training the first reference signal based on AI and / or training the pattern of the first reference signal. In other words, the input parameter of the AI ​​is the at least one item of information described above.

[0117] In some embodiments, the first node may train the first reference signal and / or train a pattern of the first reference signal on predefined resources, wherein the predefined resources include at least one of the following: an offset, a start time, a first time-frequency domain resource, a second time-frequency domain resource, a period, etc.

[0118] For example, FIG16 shows a schematic diagram of predefined resources provided by an embodiment of the present disclosure. Referring to FIG16 , different time nodes may correspond to different resources. For example, time node 1 corresponds to resource 1, and time node 2 corresponds to resource 2, and there is a period between time nodes 1 and 2.

[0119] In some embodiments, different predefined resources correspond to different reference signals or different reference signal patterns.

[0120] In some embodiments, different predefined resources have different PDSCH resource occupancy. For example, different predefined resources may have different bandwidths, different transport block sizes (TBS), different code rates, etc. For example, FIG17 is a schematic diagram of a two-resource configuration provided in an embodiment of the present disclosure. The uncolored blocks in FIG17 represent PDSCH resources, and the remaining dark blocks represent reference signal REs.

[0121] In some embodiments, after the first node completes training of the first reference signal and / or the first reference signal pattern based on the at least one item of information, the first node may feed back the training result on a feedback resource, wherein the feedback resource includes a periodic resource and an aperiodic resource.

[0122] In some embodiments, the feedback resource is located after at least one of the above information items (i.e., the training resource). For example, as shown in FIG18 , a schematic diagram of a training resource and a feedback resource is provided in an embodiment of the present disclosure. The first resource (training resource) in FIG18 is a downlink resource used for training, and the second resource (feedback resource) is an uplink resource used for feedback. The uplink resource carries PUCCH, PUSCH, DMRS, etc. The downlink resource carries DMRS, PDSCH, PDCCH, etc.

[0123] In some embodiments, the training result fed back by the first node on the feedback resource includes at least one of the following: information about a first reference signal pattern, the information about the first reference signal pattern may include an identifier of the pattern, the identifier of the pattern may be an index of the pattern, or a subset of the pattern. The information about the first reference signal pattern is used to determine which REs of the first reference signal are desired to be used during scheduling.

[0124] Scheduling information includes at least one of the following: modulation and coding scheme (MCS), code rate, number of layers, port, TBS, modulation order, number of REs, bandwidth, etc.

[0125] In some embodiments, the training results may also include how much capacity improvement the first node has, or how much margin there is, the margin including power margin, or MCS offset, TBS offset, or reference signal received power (RSRP) margin in db, or related parameters of scheduling information.

[0126] In some embodiments, the training results may further include at least one of the following:

[0127] CSI feedback information, including actual values ​​and AI-assisted CSI values.

[0128] The auxiliary information of the first node has different gains for different modulation modes such as BPSK and 16QAM, and different gains for different MCS values ​​and different bit rates.

[0129] The information carried by the acknowledgment (ACK) information / NACK information / PUCCH information is used to inform the second node how much headroom the first node has, including the headroom of parameters such as power and MCS. For example, the carried information may be an offset value.

[0130] Number of MIMO layers.

[0131] In some embodiments, the configuration information of the first reference signal includes first configuration information and second configuration information. The first configuration information and the second configuration information satisfy at least one of the following: while the first configuration information is in effect, if a third specific condition is satisfied, the second configuration information is triggered to take effect; or, while the first configuration information is in effect, if the third specific condition is satisfied, the first reference signal is processed according to the second configuration information; or, while the first configuration information is in effect, if the third specific condition is satisfied, the first configuration information is deactivated and the second configuration information is activated; or, the first reference signal is processed according to the first configuration information or the second configuration information, as indicated by signaling or determined by activation signaling.

[0132] As an example, the third specific condition includes at least one of the following: receiving a second signaling, the second signaling being used to activate the second configuration information, or being used to deactivate the first configuration information. The second signaling includes at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer expiration; feedback of NACK information;

[0133] The specific indicator or threshold is not met, wherein the specific indicator or threshold may be a preset demodulation performance of the PDSCH.

[0134] In some embodiments, the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; and a configuration of the first DMRS.

[0135] In some embodiments, the second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration, a predefined configuration, or a high-layer configuration; and a configuration of the second DMRS.

[0136] The third pattern can be understood as a processed pattern, and the fourth pattern can be understood as a default pattern. For descriptions of the processed pattern and the default pattern, reference can be made to the corresponding descriptions in the above examples, which will not be repeated here.

[0137] In some embodiments, the default pattern includes a 5G pattern. The default pattern is determined based on at least one of the following: antenna port, starting symbol, starting subcarrier, symbol position, bandwidth, frequency domain spacing, circuit data multiplexing group (CDM group), and offset.

[0138] It should be noted that when the configuration information of the first reference signal includes first configuration information and second configuration information, channel estimation or channel prediction is first performed using the first configuration information, and when the third condition is met, channel estimation or channel prediction is performed based on the second configuration information.

[0139] The following is an exemplary description of triggering the effectiveness of the second configuration information when the third specific condition is met during the effectiveness period of the first configuration information.

[0140] Exemplary methods of triggering the second configuration information to take effect include:

[0141] For example, the first node feeds back exit information via the PUCCH, where the exit information indicates exiting the DMRS channel prediction for the AI ​​mode (i.e., deactivating the first configuration information). After receiving the exit message, the second node sends a second signaling to deactivate the AI ​​mode and sends DMRS based on the default pattern in subsequent scheduling. After receiving the second signaling, the first node deactivates the first configuration information and activates the second configuration information.

[0142] For another example, the second node actively sends the second signaling to deactivate the first configuration information.

[0143] For another example, after the first node feeds back a PUCCH or receives a deactivation signaling, the first node expects to receive a DMRS sent based on a default pattern.

[0144] In some embodiments, during the period in which the second configuration information is in effect, the first configuration information is triggered to take effect if a fourth specific condition is satisfied. The fourth specific condition includes at least one of the following: receiving a third signaling message and satisfying a specific indicator or threshold. The third signaling message is used to deactivate the second configuration information or to activate the first configuration information.

[0145] Exemplary methods of triggering the first configuration information to take effect include:

[0146] For example, during training, the performance difference between the PDSCH demodulation performance of the first node based on the AI-assisted DMRS and the PDSCH demodulation performance without the AI-assisted DMRS is within a preset range. Alternatively, the performance of the RE position predicted by the first node based on the AI-assisted DMRS and the actual DMRS performance of all RE positions is within a preset performance range.

[0147] For another example, based on the training result, the first node reports or feedbacks that the first node can enter the AI-assisted DMRS demodulation mode. After receiving the above feedback, the second node sends a third signaling to the first node.

[0148] For another example, based on the feedback result of the PUCCH, the first node reports or feedbacks that it can enter the AI-assisted DMRS demodulation mode. After receiving the above feedback, the second node sends a third signaling to the first node.

[0149] In some embodiments, the first reference signal includes a fourth reference signal and a fifth reference signal.

[0150] As an example, the fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sends based on the fourth reference signal or the fifth reference signal. It should be understood that currently, the first node can only perform uplink transmission based on one reference signal, which has poor flexibility. The embodiment of the present disclosure proposes that the first reference signal includes the fourth reference signal and the fifth reference signal, so that when the first node needs to perform uplink transmission, it can select a reference signal from the fourth reference signal and the fifth reference signal for uplink transmission or sending, thereby improving the flexibility of the first node in performing uplink transmission and helping to improve the transmission performance of the first node.

[0151] As another example, the fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on fourth indication information or a second specific condition. The fourth indication information includes at least one of the following: DCI, MAC CE signaling, or LP-WUS; the second specific condition is based on at least one of the following: a threshold value, for example, whether the threshold value is met; a parameter value, for example, whether the threshold value is met; mobility, for example, whether mobility occurs; a stationary state, for example, whether the station is in a stationary state; feedback of a NACK message; receipt of deactivation signaling; and a timer, for example, whether the timer has expired.

[0152] In some embodiments, after the first node processes the first reference signal based on the configuration information of the first reference signal, that is, after step S102 above, the first node may obtain information about the third reference signal based on the first reference signal and then transmit the information about the third reference signal. Correspondingly, the second node receives the information about the third reference signal transmitted by the first node. The information about the third reference signal is used by the second node to transmit the third reference signal. That is, after obtaining information about the third reference signal based on the first reference signal, the first node may transmit information about the third reference signal to the second node to inform the second node to stop transmitting the first reference signal and instead transmit the third reference signal. After receiving the information about the third reference signal, the second node may transmit the third reference signal based on the information about the third reference signal. And after transmitting the information about the third reference signal, the first node may receive the third reference signal based on the information about the third reference signal. In this way, the first and second nodes have consistent understanding of the configuration of the third reference signal, which helps reduce the power consumption of the first node.

[0153] In some embodiments, the pattern of the third reference signal, the time-frequency domain resource position, the frequency point, the frequency band, the port, the beam, the number of resource units of the third reference signal, and the position of the resource unit of the third reference signal.

[0154] As a possible example, taking the third reference signal as a downlink reference signal, after the first node processes the first reference signal based on the configuration information of the first reference signal, that is, after the above step S102, the first node can obtain downlink reference signal information based on the processing of the first reference signal, and then send the downlink reference signal information. Correspondingly, the second node receives the downlink reference signal information and sends a downlink reference signal based on the downlink reference signal information. After sending the downlink reference signal information, the first node receives a downlink reference signal based on the downlink reference signal information.

[0155] The downlink reference signal information includes at least one of the following: downlink reference signal selection information, downlink reference signal pattern information, downlink reference signal auxiliary information, downlink reference signal resource unit location information, downlink reference signal type information, and downlink reference signal fallback indication.

[0156] As an example, sending downlink reference signal information includes: sending the downlink reference signal information based on a first transmission mode, where the first transmission mode includes at least one of the following: MAC signaling, RRC signaling, physical uplink control channel (PUCCH), uplink control information (UCI), and physical random access channel (PRACH). In other words, the downlink reference signal information is carried in at least one of media access control (MAC) signaling, RRC signaling, physical uplink control channel (PUCCH), uplink control information (UCI), and physical random access channel (PRACH).

[0157] In some embodiments, as shown in FIG19 , an embodiment of the present disclosure further provides a communication method, which may be applied to a second node, which may be the second node 120 shown in FIG6 . The method may include the following steps:

[0158] Step S201: Send configuration information of a first reference signal.

[0159] In some embodiments, in order to improve the performance of channel estimation performed by the first node, the second node may send configuration information of the first reference signal to the first node.

[0160] As an example, the second node configures the configuration information of the first reference signal, which may be that the second node predicts the communication service in a period of time in the future based on AI, and then configures the configuration information of the first reference signal according to the prediction result of the communication service.

[0161] In some embodiments, the configuration information of the first reference signal includes the location of the resource unit of the first reference signal, and the resource unit includes a first resource unit and a second resource unit.

[0162] In some embodiments, the first reference signal is a Modemation and Demodulation Reference Signal (DMRS).

[0163] In some embodiments, the first resource unit is used to carry a first reference signal with non-zero power, and the second resource unit is used to carry a first reference signal with zero power; or, the first resource unit and the second resource unit are used to carry a first reference signal with non-zero power; or, the first resource unit is used to transmit a data channel and a first reference signal, and the second resource unit is used to transmit the first reference signal; or, the port corresponding to the first resource unit and the port corresponding to the data channel are the same, and the port corresponding to the second resource unit and the port corresponding to the data channel are different; or, the position of the second resource unit is a subset of the position of the first resource unit; or, there is no overlap between the position of the second resource unit and the position of the first resource unit; or, the position of the first resource unit and the position of the second resource unit are continuous in the time domain or in the frequency domain; or, the number of second resource units is determined according to the number of first resource units; or, the sum of the number of second resource units and the number of first resource units is a specific value; or, the number of second resource units has a ratio relationship with the number of first resource units.

[0164] In some embodiments, the configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit.

[0165] In some embodiments, the position of the second resource unit is determined according to the second parameter and the first parameter; or, the second parameter and the first parameter are associated with each other.

[0166] In some embodiments, the configuration information of the first reference signal includes a third parameter and a fourth parameter, the third parameter is used to indicate the location of the resource unit of the first reference signal, and the fourth parameter is used to indicate the location of the first resource unit or the location of the second resource unit.

[0167] In some embodiments, the configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

[0168] In some embodiments, there is an offset between the power of the first resource unit and the power of the second resource unit; or, the power of the second resource unit is obtained based on the power of the first resource unit; or, there is a correlation between the power of the first resource unit and the power of the second resource unit.

[0169] In some embodiments, the configuration information of the first reference signal includes a pattern of the first reference signal, and the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal.

[0170] In some embodiments, the pattern of the first reference signal includes a first pattern and / or a second pattern; the position of the resource unit of the first pattern is used to transmit the data channel and the first reference signal, and the position of the resource unit of the second pattern is used to transmit the first reference signal; or, the first pattern and the second pattern are used to carry the first reference signal with non-zero power; or, the first pattern is used to transmit the data channel and the first reference signal, and the second pattern is used to transmit the first reference signal; or, the position of the second resource unit determined by the second pattern is a subset of the first resource unit determined by the first pattern; or, the position of the second resource unit determined by the second pattern and the position of the first resource unit determined by the first pattern do not overlap; or, the position of the first resource unit determined by the first pattern and the position of the second resource unit determined by the second pattern are continuous in the time domain or the frequency domain.

[0171] In some embodiments, the second node may also send first indication information to the first node, where the first indication information is used to activate or deactivate the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine a subset of resource units of the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or, the pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one pattern of the pattern of the first reference signal.

[0172] In some embodiments, the second node may further send second indication information to the first node, where the second indication information is used to determine a pattern of the second reference signal.

[0173] In some embodiments, the configuration information of the first reference signal includes second indication information.

[0174] In some embodiments, the pattern of the second reference signal is a subset of the pattern of the first reference signal; or, the pattern of the first reference signal is a subset of the pattern of the second reference signal; or, the pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in time domain, or are continuous in frequency domain; or, there is an association between the pattern of the first reference signal and the pattern of the second reference signal.

[0175] In some embodiments, the first reference signal or the second reference signal is used for at least one of: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

[0176] In some embodiments, the configuration information of the reference signal includes third indication information, and the third indication information is used to indicate at least one of the following: the starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein, the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position.

[0177] In some embodiments, the third indication information includes at least one of the following: first bitmap information, the first bitmap information is used to indicate the frequency domain starting position, frequency domain interval, and the number of frequency domain resources; second bitmap information, the second bitmap information is used to indicate the time domain starting position, time domain interval, and the number of time domain resources; pattern index indication information.

[0178] In some embodiments, the position of the resource unit of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: time domain resources; frequency domain resources; subcarrier spacing; frequency point location; carrier information; cell information; time domain location; antenna port information; data channel transmission method; whether data is transmitted at the position of the resource unit of the first reference signal; the purpose of the first reference signal, which includes training, supervision or inference; and a first specific condition.

[0179] In some embodiments, the first specific condition is based on at least one of the following: a threshold value; a parameter value; mobility; stationary; a non-acknowledgement (NACK) message; activation signaling or deactivation signaling; a timer.

[0180] In some embodiments, processing the first reference signal also requires at least one of the following information: movement speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integrated, multiple-input multiple-output MIMO, number of MIMO layers, smart metasurface RIS parameters, sequence, subband information, and scheduling information.

[0181] In some embodiments, at least one item of information is transmitted based on at least one of the following: radio resource control RRC signaling, media access control element MAC CE signaling, downlink control information DCI, low power wake-up signal LP-WUS, physical downlink shared channel PDSCH, system message SI; or, at least one item of information is transmitted through configuration information of the first reference signal.

[0182] In some embodiments, the first reference signal includes a fourth reference signal and a fifth reference signal.

[0183] In some embodiments, the fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sending based on the fourth reference signal or the fifth reference signal.

[0184] In some embodiments, the fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on fourth indication information or a second specific condition.

[0185] In some embodiments, the fourth indication information includes at least one of the following: DCI, MAC CE signaling, LP-WUS; the second specific condition is based on at least one of the following: threshold value; parameter value; mobility; static state; feedback NACK message; receipt of deactivation signaling; timer.

[0186] In some embodiments, the configuration information of the first reference signal includes first configuration information and second configuration information.

[0187] In some embodiments, the first configuration information and the second configuration information satisfy at least one of the following: during the period when the first configuration information is effective, when a third specific condition is satisfied, the second configuration information is triggered to take effect; or, during the period when the first configuration information is effective, when a third specific condition is satisfied, the first reference signal is processed according to the second configuration information; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first configuration information is deactivated and the second configuration information is activated; the first reference signal is processed according to the first configuration information or the second configuration information through signaling indication or activation signaling.

[0188] In some embodiments, the third specific condition includes at least one of the following: receiving a second signaling, the second signaling including at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer expiration; feedback NACK information; failure to meet a specific indicator or threshold value.

[0189] In some embodiments, the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; a configuration of the first DMRS; the second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration or a predefined configuration or a high-level configuration; a configuration of the second DMRS.

[0190] It should be noted that, for the specific description of the configuration information of the first reference signal, reference may be made to the corresponding description in the embodiment shown in 7 above, which will not be repeated here.

[0191] Step S202: Send a first reference signal based on the configuration information of the first reference signal.

[0192] In some embodiments, after the second node sends the configuration information of the first reference signal to the first node, the second node may send the first reference signal based on the configuration information of the first reference signal. It should be understood that after the first node receives the configuration information of the first reference signal, it should receive the first reference signal based on the configuration information of the first reference signal. Therefore, the second node sends the first reference signal based on the configuration information of the first reference signal so that the first node can correctly receive the first reference signal, reducing signal transmission complexity and facilitating reduced power consumption of the first node.

[0193] In some embodiments, the second node may further receive information about a third reference signal transmitted by the first node, where the information about the third reference signal is obtained based on the first reference signal. After receiving the information about the third reference signal, the second node transmits the third reference signal to the first node based on the information about the third reference signal. Correspondingly, the first node receives the third reference signal transmitted by the second node.

[0194] In some embodiments, the information of the third reference signal includes at least one of the following: a pattern of the third reference signal, a time-frequency domain resource location, a frequency point, a frequency band, a port, a beam, the number of resource units of the third reference signal, and the location of the resource units of the third reference signal.

[0195] In some embodiments, the second node may further receive downlink reference signal information sent by the first node, where the downlink reference signal information is obtained based on processing the first reference signal. The downlink reference signal information includes at least one of the following: downlink reference signal selection information, downlink reference signal pattern information, downlink reference signal auxiliary information, downlink reference signal resource unit location information, downlink reference signal type information, and a downlink reference signal fallback indication.

[0196] Based on the embodiment shown in Figure 19, the second node sends the configuration information of the first reference signal to the first node, so that the first node processes the first reference signal based on the configuration information of the first reference signal, so that the first node can flexibly use the reference signal, which helps to reduce the overhead of the second node and improve the processing performance of the first node based on the reference signal, such as PUSCH transmission, measurement, etc.

[0197] The following describes a communication method provided by an embodiment of the present disclosure with reference to some specific examples. For example, an embodiment of the present disclosure provides a communication method, which is applied to a first node, which may be the first node 110 shown in FIG6 . The method includes but is not limited to the following embodiments:

[0198] The first node receives configuration information of a first reference signal; and processes the first reference signal based on the configuration information of the first reference signal.

[0199] The first reference signal includes DMRS, positioning reference signal, synchronization signal, sounding reference signal, phase tracking reference signal, channel state measurement CSI reference signal, interference measurement reference signal, remote interference management (RIM) reference signal. Among them, synchronization signals PSS, SSS and LP-SS, etc.

[0200] In some embodiments, the first reference signal is processed, where the processing includes receiving, detecting, transmitting, sending, training, supervising, and inferring. Exemplarily, for processing the first reference signal, the first node may receive or detect the first reference signal, or may perform training, supervision, or inference on the first reference signal to obtain other reference signals, such as a second reference signal, a third reference signal, a fourth reference signal, and a fifth reference signal.

[0201] In some embodiments, processing the first reference signal includes processing the first reference signal and a signal, or processing the first reference signal and a channel.

[0202] In some embodiments, the configuration information of the first reference signal includes a location of a resource unit of the first reference signal, where the resource unit includes a first resource unit and a second resource unit. The location of the resource unit of the first reference signal is determined by a pattern or by the configuration information of the first reference signal.

[0203] In some embodiments, the first resource unit is used to carry a first reference signal with non-zero power, and the second resource unit is used to carry a first reference signal with zero power; or, the first resource unit and the second resource unit are used to carry a first reference signal with non-zero power; or, the first resource unit is used to transmit a data channel and a first reference signal, and the second resource unit is used to transmit the first reference signal; or, the port corresponding to the first resource unit and the port corresponding to the data channel are the same, and the port corresponding to the second resource unit and the port corresponding to the data channel are different; or, the position of the second resource unit is determined according to the position of the first resource unit; or, the position of the second resource unit is a subset of the position of the first resource unit; or, there is no overlap between the position of the second resource unit and the position of the first resource unit; or, the position of the first resource unit and the position of the second resource unit are continuous in the time domain or the frequency domain; or, the number of second resource units is determined according to the number of first resource units; or, the sum of the number of second resource units and the number of first resource units is a specific value; or, the number of second resource units has a ratio relationship with the number of first resource units.

[0204] Exemplarily, the first resource unit and the second resource unit are used to carry a first reference signal with non-zero power, and there is an offset between the powers thereof.

[0205] Exemplarily, the port corresponding to the first resource unit is the same as the port corresponding to the data channel, and the port corresponding to the second resource unit is different from the port corresponding to the data channel, or the port corresponding to the second resource unit is the same as the port corresponding to the control channel.

[0206] Exemplarily, the position of the first resource unit includes the position of the second resource unit, or the position range of the first resource unit includes the position of the second resource unit. For example, the time domain span of the first resource unit is symbols 1 to 14, and the time domain position of the second resource unit is between 1 and 14. For example, the position of the first resource unit is a set with more elements, and the position of the second resource unit is a subset of it.

[0207] In some embodiments, the configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit.

[0208] As one possible example, the first parameter is a parameter configured by RRC, and the second parameter is a parameter determined by DCI or MAC CE. As another possible example, the first parameter is a parameter configured by RRC, and the second parameter is a parameter configured by RRC.

[0209] In some embodiments, the position of the second resource unit is determined according to the second parameter and the first parameter; or, the second parameter and the first parameter are associated with each other.

[0210] Exemplarily, the position of the first resource unit is at least one or a set, and the second parameter points to a subset of the first resource unit by indicating an index, thereby determining the position of the second resource unit.

[0211] Exemplarily, the second parameter is associated with the first parameter, the position of the first resource unit is determined by the first parameter, and the position of the second resource unit is determined by the second parameter.

[0212] In some embodiments, the configuration information of the first reference signal includes a third parameter and a fourth parameter, the third parameter is used to indicate the location of the resource unit of the first reference signal, and the fourth parameter is used to indicate the location of the first resource unit or the location of the second resource unit.

[0213] In some embodiments, the configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

[0214] As an example, functions or uses include modulation and demodulation, positioning, synchronization, channel sounding, phase tracking, channel measurement, interference measurement, long-range jamming principle, training, supervision, and reasoning. Types include reference signal types based on different functions or uses, or different pattern types.

[0215] In some embodiments, the first reference signal of the first type and the first reference signal of the second type differ in at least one of the following: port number, beam, carrier, cell, frequency band, subcarrier spacing, time domain position, time node, path, and transmission point.

[0216] In some embodiments, there is an offset between the power of the first resource unit and the power of the second resource unit; or, the power of the second resource unit is obtained based on the power of the first resource unit; or, there is a correlation between the power of the first resource unit and the power of the second resource unit.

[0217] In some embodiments, the configuration information of the first reference signal includes a pattern of the first reference signal, and the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal.

[0218] As an example, the location of a resource unit includes a time domain location, a frequency domain location, and a spatial domain location. The time domain location includes at least one of the symbol starting position, number, symbol position, interval, and duration in the time domain. The frequency domain location includes at least one of the starting position, number, and interval of RBs / REs in the time domain. The spatial domain location includes the beam direction, beam index, number of beams, the position of each beam in the time domain, and the port number.

[0219] In some embodiments, the pattern of the first reference signal includes a first pattern and / or a second pattern;

[0220] The positions of the resource units of the first pattern are used to transmit data channels and first reference signals, and the positions of the resource units of the second pattern are used to transmit the first reference signals; or, the first pattern and the second pattern are used to carry first reference signals with non-zero power; or, the first pattern is used to transmit data channels and first reference signals, and the second pattern is used to transmit first reference signals; or, the positions of the second resource units determined by the second pattern are a subset of the first resource units determined by the first pattern; or, there is no overlap between the positions of the second resource units determined by the second pattern and the positions of the first resource units determined by the first pattern; or, the positions of the first resource units determined by the first pattern and the positions of the second resource units determined by the second pattern are continuous in the time domain or the frequency domain.

[0221] In some embodiments, the first node receives first indication information, and the first indication information is used to activate or deactivate the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine a subset of resource units of the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or, the pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one pattern of the pattern of the first reference signal.

[0222] In some embodiments, a first node receives first indication information, where the first indication information is used to activate or deactivate configuration information of a first reference signal; or, the first indication information is used to activate or deactivate or determine a sub-location or subset of resource elements of the first reference signal; or, the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the configuration information of the first reference signal; or, the locations of resource elements of the first reference signal include one set of locations or multiple sets of locations, and the first indication information is used to activate or deactivate or determine at least one set of locations of resource elements of the first reference signal. A set of locations represents all locations of at least one resource element of the first reference signal.

[0223] In some embodiments, a resource unit may be zero-power or non-zero-power.

[0224] As an example, the first indication information is carried or determined through DCI, MAC CE, LP-WUS, RRC, or sequence.

[0225] In some embodiments, the method may further include the following steps: the first node determines a pattern of the second reference signal based on the pattern of the first reference signal; or, receives second indication information, where the second indication information is used to determine the pattern of the second reference signal.

[0226] Exemplarily, the pattern of the first reference signal includes at least one, and the pattern of the second reference signal is one of the at least one.

[0227] Exemplarily, the locations of the resource elements of the first reference signal form a set, and the second reference signal is determined based on the set, for example, a subset.

[0228] In some embodiments, the pattern of the first reference signal is used to indicate the location of the resource unit of the first reference signal, and the pattern of the second reference signal is determined according to the pattern of the first reference signal.

[0229] In some embodiments, the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal, and the pattern of the second reference signal is determined according to the second indication information.

[0230] In some embodiments, the configuration information of the first reference signal includes the second indication information. That is, the second indication information may be sent by the second node alone, or may be carried in the configuration information of the first reference signal.

[0231] In some embodiments, the first node may determine the location of the resource element of the second reference signal based on the location of the resource element of the first reference signal.

[0232] In some embodiments, the first node may determine the location of the resource unit of the second reference signal according to the location of the resource unit of the first reference signal and the second indication information.

[0233] In some embodiments, the first node may determine the location of the resource element of the second reference signal according to the second indication information. The location of the resource element of the first reference signal may be determined according to configuration information of the first reference signal.

[0234] In some embodiments, the second indication information is carried or determined through a DCI, MAC CE signaling, LP-WUS, RRC signaling, or sequence.

[0235] In some embodiments, the pattern of the second reference signal is a subset of the pattern of the first reference signal; or, the pattern of the first reference signal is a subset of the pattern of the second reference signal; or, the pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in time domain, or are continuous in frequency domain; or, there is an association between the pattern of the first reference signal and the pattern of the second reference signal.

[0236] For example, the pattern of the first reference signal is associated with the pattern of at least one second reference signal. For another example, the pattern of the second reference signal is associated with the pattern of at least one first reference signal.

[0237] In some embodiments, the first reference signal or the second reference signal is used for at least one of: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

[0238] In some embodiments, the configuration information of the first reference signal includes third indication information, and the third indication information is used to indicate at least one of the following: the starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein, the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position.

[0239] In some embodiments, the third indication information includes at least one of the following: first bitmap information, the first bitmap information is used to indicate the frequency domain starting position, the frequency domain interval and the number of frequency domain resources; second bitmap information, the second bitmap information is used to indicate the time domain starting position, the time domain interval and the number of time domain resources; pattern index indication information.

[0240] Exemplarily, the first bitmap information indicates frequency domain resources, including the frequency domain starting position and the number of frequency domain resources, such as the number of RBs and RBGs. The second bitmap information indicates time domain resources, including the time domain starting position and the number of time domain resources, such as the number of symbols, the number of slots, and the number of repetitions. The pattern index information is used to determine an index that points to or is associated with a pattern for determining the location of a resource element of the first reference signal.

[0241] In some embodiments, the position of the resource unit of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: time domain resources; frequency domain resources; subcarrier spacing; frequency point location; carrier information; cell information; time domain location; antenna port information; data channel transmission method; whether data is transmitted at the location of the resource unit of the first reference signal; purpose of the first reference signal, wherein the purpose includes training, supervision or inference; and a first specific condition.

[0242] In some embodiments, the antenna port information includes: the number of antenna ports; the antenna port number or index; or the antenna port type.

[0243] In some embodiments, a time node and the aforementioned time domain location are the same, both being used to determine at least one time domain location. A time node or time domain location includes at least one of the following information: a start time point, a reference time point, a time period, an end time point, a period, and an offset. A time node or time domain location is defined based on a time unit, such as milliseconds, microseconds, seconds, symbols, time slots, subframes, radio frames, superframes, or a basic time unit T.

[0244] In some embodiments, the data channel includes a physical shared channel, a downlink physical shared channel, an uplink physical shared channel, a downlink data channel, and an uplink data channel.

[0245] In some embodiments, the cell information includes at least one of the following information: serving cell information, SCell information, cell identifier, neighboring cell, intra-frequency cell, inter-frequency cell, virtual cell, physical cell identifier PCI, or a list based on the above information.

[0246] In some embodiments, whether data is transmitted at the location of the resource element of the first reference signal corresponds to different patterns or locations of the resource elements of the first reference signal.

[0247] In some embodiments, different patterns or locations of resource elements of the first reference signal are determined or corresponded to different patterns or locations of resource elements of the first reference signal according to the usage of the first reference signal.

[0248] In some embodiments, the first specific condition is based on at least one of the following: a threshold value; a parameter value; mobility; stationary; a non-acknowledgement (NACK) message; activation signaling or deactivation signaling; a timer.

[0249] As an example, the first node may determine a resource location of a corresponding first reference signal, or determine configuration information of the first reference signal, or determine a pattern of the first reference signal based on whether a threshold value, a parameter value, mobility, or a stationary condition is satisfied. The first node may then process the first reference signal based on the pattern of the first reference signal, the resource location of the first reference signal, and the configuration information of the first reference signal.

[0250] As an example, the position, pattern, or configuration information of the resource unit of the first reference signal is determined based on the NACK message. For example, when no NACK is fed back, the first reference signal is based on the position, pattern, or configuration information of the first resource unit; when a NACK is fed back, the first reference signal is based on the position, pattern, or configuration information of the second resource unit.

[0251] As an example, according to the first specific condition, at different time domain positions, the positions or patterns of the resource units of the first reference signal are different.

[0252] As an example, the position, pattern, or configuration information of the resource unit of the first reference signal is determined based on activation signaling or deactivation signaling. For example, when there is no activation signaling or deactivation signaling, the first reference signal is determined based on the position, pattern, or configuration information of the first resource unit; when there is activation signaling or deactivation signaling, the first reference signal is determined based on the position, pattern, or configuration information of the second resource unit.

[0253] As an example, the position, pattern, or configuration information of the resource unit of the first reference signal is determined according to whether the timer overflows.

[0254] In some embodiments, processing the first reference signal also requires at least one of the following information: motion speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integration, MIMO, number of MIMO layers, RIS parameters, sequence, subband information, and scheduling information.

[0255] As an example, the first configuration information includes motion speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna, scenario, near field, far field, integrated, multiple-input multiple-output (MIMO), number of MIMO layers, smart metasurface (RIS) parameters, sequence, subband frequency, and scheduling information. In some embodiments, the above information is transmitted via RRC, DCI, or MAC CE.

[0256] Exemplarily, the antenna includes port information and antenna quantity information. Scenario information includes outdoor, indoor, rural, urban and other scenarios. Near field and far field are determined as far field or process based on the distance from the field source. Integration indicates whether the distribution of base stations or communication nodes is centralized or decentralized. Subband information includes the index of the frequency subband or the frequency domain resource location. The sequence is used to determine the m sequence, pseudorandom noise sequence (PN) sequence, ZC sequence, 0-1 sequence, or other sequence.

[0257] In some embodiments, at least one item of information is transmitted based on at least one of the following: RRC signaling, MAC CE signaling, DCI, LP-WUS, PDSCH, SI; or, at least one item of information is transmitted through configuration information of the first reference signal.

[0258] In some embodiments, the first node receives configuration information of a first reference signal; after processing the first reference signal based on the configuration information of the first reference signal, the method may further include the following steps:

[0259] Obtain information of a third reference signal according to the first reference signal; and send the information of the third reference signal.

[0260] In some embodiments, the information of the third reference signal includes at least one of the following: a pattern of the third reference signal, a time-frequency domain resource location, a frequency point, a frequency band, a port, a beam, the number of resource units of the third reference signal, and the location of the resource units of the third reference signal.

[0261] As an example, frequency, frequency band, port, and beam are the same as frequency information, frequency band information, port information, and beam information.

[0262] As an example, the time-frequency domain resource location includes the time domain resource location and / or the frequency domain resource location. The time domain resource location includes the time domain location of the resource, such as the starting symbol and the symbol number. The frequency domain resource location includes the frequency domain location of the resource, such as the starting RB and the RB index.

[0263] In some embodiments, the resource unit is a resource element or a resource unit, and the resource unit is a resource unit defined based on the time domain and the frequency domain.

[0264] In some embodiments, after the first node processes the first reference signal based on the configuration information of the first reference signal, the method may further include the following step: sending downlink reference signal information according to the processing of the first reference signal.

[0265] As an example, according to the processing of the first reference signal, information of the downlink reference signal is sent through an uplink channel or signal.

[0266] In some embodiments, the information of the downlink reference signal includes at least one of the following: selection information of the downlink reference signal, pattern information of the downlink reference signal, auxiliary information of the downlink reference signal, location information of the resource unit of the downlink reference signal, type information of the downlink reference signal, and a fallback indication of the downlink reference signal.

[0267] As one possible example, after receiving, measuring, training, supervising, or inferring the first reference signal, the first node transmits downlink reference signal information via an uplink channel or signal based on the processing result. Upon receiving the downlink reference signal information, the second node further considers or modulates the configuration information of the first reference signal.

[0268] In some embodiments, sending downlink reference signal information includes:

[0269] The downlink reference signal information is sent based on a first transmission mode, where the first transmission mode includes at least one of the following: MAC signaling, RRC signaling, PUCCH, UCI, and PRACH.

[0270] In some embodiments, the first reference signal includes a fourth reference signal and a fifth reference signal.

[0271] In some embodiments, the fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sending based on the fourth reference signal or the fifth reference signal.

[0272] In some embodiments, the configuration information of the first reference signal includes configuration information of the fourth reference signal and configuration information of the fifth reference signal. When the first node transmits or sends an uplink signal or channel, the first node selects the fourth reference signal or the fifth reference signal as the reference signal for transmission or sending of the uplink signal or channel.

[0273] In some embodiments, the fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on the fourth indication information or the second specific condition.

[0274] In some embodiments, the configuration information of the first reference signal includes configuration information of the fourth reference signal and configuration information of the fifth reference signal, and the first node determines the fifth reference signal or the fifth reference signal as a reference signal for downlink signal or channel transmission or reception based on the fourth indication information or the second specific condition.

[0275] In some embodiments, the fourth indication information includes at least one of the following: DCI, MAC CE signaling, LP-WUS; or, the second specific condition is based on at least one of the following: threshold value; parameter value; mobility; static state; feedback NACK message; activation or deactivation signaling; timer.

[0276] Wherein, DCI and LP-WUS are both types of physical layer signaling, and MAC CE is a type of MAC layer signaling. In some embodiments, determining the fourth reference signal or the fifth reference signal is based on physical layer signaling or MAC layer signaling.

[0277] In some embodiments, when the condition is met, the fourth reference signal is determined to be a reference signal of the signal or channel; when the condition is not met, the fifth reference signal is determined to be a reference signal of the signal or channel.

[0278] Exemplarily, when no NACK information is fed back, the reference signal of the signal or channel is the fourth reference signal. After the NACK information is fed back, the first node may hope that the reference signal of the signal or channel is the fifth reference signal.

[0279] Exemplarily, taking the second specific condition as any one of a threshold value, a parameter value, mobility, and a stationary state, when the second specific condition is met, the fourth reference signal is a reference signal for measurement relaxation or AI measurement. When the second specific condition is not met, the fourth reference signal is a reference signal for normal measurement. Normal measurement is based on measurement period T1, and measurement relaxation is based on measurement period T2, where T2>T1. AI measurement is characterized by measurements based on port information, beam, carrier, cell, frequency band, subcarrier spacing, time domain location, time node, path, and transmission point.

[0280] Exemplarily, when activation signaling or deactivation signaling is received, determining whether the fourth reference signal or the fifth reference signal is used for measurement relaxation, for AI measurement, or for signal or channel transmission according to the indication of the activation signaling or deactivation signaling. When the indication is for measurement or signal or channel transmission, processing the first reference signal includes receiving a corresponding reference signal, such as SSB, PSS, SSS, LP-SS, DMRS, CSI-RS.

[0281] In some embodiments, the configuration information of the first reference signal includes first configuration information and second configuration information.

[0282] In some embodiments, the first configuration information and the second configuration information satisfy at least one of the following: during the period when the first configuration information is effective, when a third specific condition is satisfied, the second configuration information is triggered to take effect; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first reference signal is processed according to the second configuration information; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first configuration information is deactivated and the second configuration information is activated; the first reference signal is processed according to the first configuration information or the second configuration information through signaling indication or activation signaling determination.

[0283] In some embodiments, the third specific condition includes at least one of the following: receiving a second signaling, the second signaling including at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer expiration; feedback NACK information; failure to meet a specific indicator or threshold value.

[0284] It should be noted that satisfying a specific condition is equivalent to not satisfying a specific condition. For example, satisfying is greater than, while not satisfying is less than or equal to.

[0285] Exemplarily, during the period when the first configuration information is effective, the second configuration information is triggered to take effect under at least one of the following conditions: receiving a second signaling, the second signaling includes at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer timeout; feedback NACK information; failure to meet specific indicators or threshold values.

[0286] In some embodiments, triggering the second configuration to take effect, processing the first reference signal according to the second configuration information, activating the second configuration information, and processing the first reference signal according to the first configuration information or the second configuration information may involve a delay, gap, or offset. Exemplarily, there may be a delay, gap, or offset from the satisfaction of the third specific condition, or receipt of a signaling indication or activation signaling, to the taking effect of the second configuration information, or activation of the second configuration information, or processing the first reference signal according to the first configuration information or the second configuration information.

[0287] In some embodiments, the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; a configuration of the first DMRS; the second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration or a predefined configuration or a high-level configuration; a configuration of the second DMRS.

[0288] As a possible example, during the period when the first configuration information is in effect, if a third specific condition is met, the second configuration information is triggered to take effect, where the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; or a configuration of the first DMRS. The second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration, a predefined configuration, or a high-layer configuration; or a configuration of the second DMRS.

[0289] As another possible example, while the first configuration information is in effect, if a third specific condition is met, the first reference signal is processed according to the second configuration information. The first configuration information includes at least one of the following: a third pattern of the first reference signal, a configuration in a specific mode, or a configuration of the first DMRS. The second configuration information includes at least one of the following: a fourth pattern of the first reference signal, a default configuration, a predefined configuration, or a higher-layer configuration, or a configuration of the second DMRS.

[0290] As another possible example, while the first configuration information is in effect, if a third specific condition is met, the first configuration information is deactivated and the second configuration information is activated; or, as indicated by signaling or determined by activation signaling, the first reference signal is processed according to the first configuration information or the second configuration information. The first configuration information includes at least one of the following: a third pattern of the first reference signal, a configuration in a specific mode, or a configuration of the first DMRS. The second configuration information includes at least one of the following: a fourth pattern of the first reference signal, a default configuration, a predefined configuration, or a higher-layer configuration, or a configuration of the second DMRS.

[0291] It should be noted that the above embodiments and the embodiments in each step can be combined arbitrarily.

[0292] The above mainly introduces the solution provided by the present disclosure from the perspective of the interaction between each node. It is understandable that each node, such as the first node or the second node, includes a hardware structure and / or software module corresponding to the execution of each function in order to implement the above functions. Those skilled in the art should easily appreciate that, in combination with the algorithm steps of each example described in the embodiments disclosed herein, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present disclosure.

[0293] The embodiment of the present disclosure can divide the functional modules of the first node or the second node according to the above-mentioned method embodiment. For example, each functional module can be divided corresponding to each function, or two or more functions can be integrated into one functional module. The above-mentioned integrated module can be implemented in the form of hardware or software. It should be noted that the division of modules in the embodiment of the present disclosure is schematic and is only a logical function division. There may be other division methods in actual implementation. The following is an example of dividing each functional module corresponding to each function.

[0294] FIG20 is a schematic diagram of the components of a communication device provided in an embodiment of the present disclosure. As shown in FIG20 , the communication device 30 includes a receiving unit 301 and a processing unit 302. In some embodiments, the communication device 30 further includes a sending unit 303.

[0295] The communication device 30 may be the first node or a chip in the first node. When the communication device 30 is used to implement the function of the first node in the above embodiment, each unit is specifically used to implement the following functions.

[0296] The receiving unit 301 is configured to receive configuration information of a first reference signal; the processing unit 302 is configured to process the first reference signal based on the configuration information of the first reference signal.

[0297] In some embodiments, the configuration information of the first reference signal includes the location of the resource units of the first reference signal, and the resource units include a first resource unit and a second resource unit.

[0298] In some embodiments, the first reference signal is a DMRS.

[0299] In some embodiments, the first resource unit is used to carry a first reference signal with non-zero power, and the second resource unit is used to carry a first reference signal with zero power; or, the first resource unit and the second resource unit are used to carry a first reference signal with non-zero power; or, the first resource unit is used to transmit a data channel and a first reference signal, and the second resource unit is used to transmit the first reference signal; or, the port corresponding to the first resource unit and the port corresponding to the data channel are the same, and the port corresponding to the second resource unit and the port corresponding to the data channel are different; or, the position of the second resource unit is a subset of the position of the first resource unit; or, there is no overlap between the position of the second resource unit and the position of the first resource unit; or, the position of the first resource unit and the position of the second resource unit are continuous in the time domain or in the frequency domain; or, the number of second resource units is determined according to the number of first resource units; or, the sum of the number of second resource units and the number of first resource units is a specific value; or, the number of second resource units has a ratio relationship with the number of first resource units.

[0300] In some embodiments, the configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit.

[0301] In some embodiments, the position of the second resource unit is determined according to the second parameter and the first parameter; or, the second parameter and the first parameter are associated with each other.

[0302] In some embodiments, the configuration information of the first reference signal includes a third parameter and a fourth parameter, the third parameter is used to indicate the location of the resource unit of the first reference signal, and the fourth parameter is used to indicate the location of the first resource unit or the location of the second resource unit.

[0303] In some embodiments, the configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

[0304] In some embodiments, there is an offset between the power of the first resource unit and the power of the second resource unit; or, the power of the second resource unit is obtained based on the power of the first resource unit; or, there is a correlation between the power of the first resource unit and the power of the second resource unit.

[0305] In some embodiments, the configuration information of the first reference signal includes a pattern of the first reference signal, and the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal.

[0306] In some embodiments, the pattern of the first reference signal includes a first pattern and / or a second pattern; the position of the resource unit of the first pattern is used to transmit the data channel and the first reference signal, and the position of the resource unit of the second pattern is used to transmit the first reference signal; or, the first pattern and the second pattern are used to carry the first reference signal with non-zero power; or, the first pattern is used to transmit the data channel and the first reference signal, and the second pattern is used to transmit the first reference signal; or, the position of the second resource unit determined by the second pattern is a subset of the first resource unit determined by the first pattern; or, the position of the second resource unit determined by the second pattern and the position of the first resource unit determined by the first pattern do not overlap; or, the position of the first resource unit determined by the first pattern and the position of the second resource unit determined by the second pattern are continuous in the time domain or the frequency domain.

[0307] In some embodiments, the receiving unit 301 is further used to receive first indication information, where the first indication information is used to activate or deactivate the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine a subset of resource units of the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or, the pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one pattern of the pattern of the first reference signal.

[0308] In some embodiments, the processing unit 302 is further configured to determine a pattern of the second reference signal based on the pattern of the first reference signal; or the receiving unit 301 is further configured to receive second indication information, and the second indication information is used to determine the pattern of the second reference signal.

[0309] In some embodiments, the configuration information of the first reference signal includes second indication information.

[0310] In some embodiments, the pattern of the second reference signal is a subset of the pattern of the first reference signal; or, the pattern of the first reference signal is a subset of the pattern of the second reference signal; or, the pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in time domain, or are continuous in frequency domain; or, there is an association between the pattern of the first reference signal and the pattern of the second reference signal.

[0311] In some embodiments, the first reference signal or the second reference signal is used for at least one of: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

[0312] In some embodiments, the configuration information of the reference signal includes third indication information, and the third indication information is used to indicate at least one of the following: the starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein, the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position.

[0313] In some embodiments, the third indication information includes at least one of the following: first bitmap information, the first bitmap information is used to indicate the frequency domain starting position, frequency domain interval, and the number of frequency domain resources; second bitmap information, the second bitmap information is used to indicate the time domain starting position, time domain interval, and the number of time domain resources; pattern index indication information.

[0314] In some embodiments, the position of the resource unit of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: time domain resources; frequency domain resources; subcarrier spacing; frequency point location; carrier information; cell information; time domain location; antenna port information; data channel transmission method; whether data is transmitted at the location of the resource unit of the first reference signal; purpose of the first reference signal, including training, supervision or inference; and a first specific condition.

[0315] In some embodiments, the first specific condition is based on at least one of the following: a threshold value; a parameter value; mobility; stationary; a non-acknowledgement (NACK) message; activation signaling or deactivation signaling; a timer.

[0316] In some embodiments, processing the first reference signal also requires at least one of the following information: movement speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integrated, multiple-input multiple-output MIMO, number of MIMO layers, smart metasurface RIS parameters, sequence, subband information, and scheduling information.

[0317] In some embodiments, at least one item of information is transmitted based on at least one of the following: radio resource control RRC signaling, media access control element MAC CE signaling, downlink control information DCI, low power wake-up signal LP-WUS, physical downlink shared channel PDSCH, system message SI; or, at least one item of information is transmitted through configuration information of the first reference signal.

[0318] In some embodiments, the processing unit 302 is further configured to obtain information of a third reference signal according to the first reference signal.

[0319] The sending unit 303 is configured to send information of a third reference signal.

[0320] In some embodiments, the information of the third reference signal includes at least one of the following: a pattern of the third reference signal, a time-frequency domain resource location, a frequency point, a frequency band, a port, a beam, the number of resource units of the third reference signal, and the location of the resource units of the third reference signal.

[0321] In some embodiments, the sending unit 303 is further configured to send downlink reference signal information based on processing of the first reference signal.

[0322] In some embodiments, the information of the downlink reference signal includes at least one of the following: selection information of the downlink reference signal, pattern information of the downlink reference signal, auxiliary information of the downlink reference signal, location information of the resource unit of the downlink reference signal, type information of the downlink reference signal, and a fallback indication of the downlink reference signal.

[0323] In some embodiments, the sending unit 303 is specifically used to send downlink reference signal information based on a first transmission mode, and the first transmission mode includes at least one of the following: media access control MAC signaling, RRC signaling, physical uplink control channel PUCCH, uplink control information UCI, and physical random access channel PRACH.

[0324] In some embodiments, the first reference signal includes a fourth reference signal and a fifth reference signal.

[0325] In some embodiments, the fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sending based on the fourth reference signal or the fifth reference signal.

[0326] In some embodiments, the fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on the fourth indication information or the second specific condition.

[0327] In some embodiments, the fourth indication information includes at least one of the following: DCI, MAC CE signaling, LP-WUS; the second specific condition is based on at least one of the following: threshold value; parameter value; mobility; static state; feedback NACK message; reception of deactivation signaling; timer.

[0328] In some embodiments, the configuration information of the first reference signal includes first configuration information and second configuration information.

[0329] In some embodiments, the first configuration information and the second configuration information satisfy at least one of the following: during the period when the first configuration information is effective, when a third specific condition is satisfied, the second configuration information is triggered to take effect; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first reference signal is processed according to the second configuration information; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first configuration information is deactivated and the second configuration information is activated; the first reference signal is processed according to the first configuration information or the second configuration information through signaling indication or activation signaling determination.

[0330] In some embodiments, the third specific condition includes at least one of the following: receiving a second signaling, the second signaling including at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer expiration; feedback NACK information; failure to meet a specific indicator or threshold value.

[0331] In some embodiments, the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; a configuration of the first DMRS; the second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration or a predefined configuration or a high-level configuration; a configuration of the second DMRS.

[0332] FIG21 is a schematic diagram of the components of a communication device provided in an embodiment of the present disclosure. As shown in FIG21 , the communication device 40 includes a sending unit 401 and a processing unit 402. In some embodiments, the communication device 40 further includes a receiving unit 403.

[0333] The communication device 40 may be the second node or a chip in the second node. When the communication device 40 is used to implement the function of the second node in the above embodiment, each unit is specifically used to implement the following functions.

[0334] The sending unit 401 is configured to send configuration information of a first reference signal; the processing unit 402 is configured to process the first reference signal based on the configuration information of the first reference signal.

[0335] In some embodiments, the configuration information of the first reference signal includes the location of the resource units of the first reference signal, and the resource units include a first resource unit and a second resource unit.

[0336] In some embodiments, the first reference signal is a Modemation and Demodulation Reference Signal (DMRS).

[0337] In some embodiments, the first resource unit is used to carry a first reference signal with non-zero power, and the second resource unit is used to carry a first reference signal with zero power; or, the first resource unit and the second resource unit are used to carry a first reference signal with non-zero power; or, the first resource unit is used to transmit a data channel and a first reference signal, and the second resource unit is used to transmit the first reference signal; or, the port corresponding to the first resource unit and the port corresponding to the data channel are the same, and the port corresponding to the second resource unit and the port corresponding to the data channel are different; or, the position of the second resource unit is a subset of the position of the first resource unit; or, there is no overlap between the position of the second resource unit and the position of the first resource unit; or, the position of the first resource unit and the position of the second resource unit are continuous in the time domain or in the frequency domain; or, the number of second resource units is determined according to the number of first resource units; or, the sum of the number of second resource units and the number of first resource units is a specific value; or, the number of second resource units has a ratio relationship with the number of first resource units.

[0338] In some embodiments, the configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit.

[0339] In some embodiments, the position of the second resource unit is determined according to the second parameter and the first parameter; or, the second parameter and the first parameter are associated with each other.

[0340] In some embodiments, the configuration information of the first reference signal includes a third parameter and a fourth parameter, the third parameter is used to indicate the location of the resource unit of the first reference signal, and the fourth parameter is used to indicate the location of the first resource unit or the location of the second resource unit.

[0341] In some embodiments, the configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

[0342] In some embodiments, there is an offset between the power of the first resource unit and the power of the second resource unit; or, the power of the second resource unit is obtained based on the power of the first resource unit; or, there is a correlation between the power of the first resource unit and the power of the second resource unit.

[0343] In some embodiments, the configuration information of the first reference signal includes a pattern of the first reference signal, and the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal.

[0344] In some embodiments, the pattern of the first reference signal includes a first pattern and / or a second pattern; the position of the resource unit of the first pattern is used to transmit the data channel and the first reference signal, and the position of the resource unit of the second pattern is used to transmit the first reference signal; or, the first pattern and the second pattern are used to carry the first reference signal with non-zero power; or, the first pattern is used to transmit the data channel and the first reference signal, and the second pattern is used to transmit the first reference signal; or, the position of the second resource unit determined by the second pattern is a subset of the first resource unit determined by the first pattern; or, the position of the second resource unit determined by the second pattern and the position of the first resource unit determined by the first pattern do not overlap; or, the position of the first resource unit determined by the first pattern and the position of the second resource unit determined by the second pattern are continuous in the time domain or the frequency domain.

[0345] In some embodiments, the sending unit 401 is further used to send first indication information, where the first indication information is used to activate or deactivate the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine a subset of resource units of the pattern of the first reference signal; or, the first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or, the pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one pattern of the pattern of the first reference signal.

[0346] In some embodiments, the sending unit 401 is further configured to send second indication information, where the second indication information is used to determine a pattern of the second reference signal.

[0347] In some embodiments, the configuration information of the first reference signal includes second indication information.

[0348] In some embodiments, the pattern of the second reference signal is a subset of the pattern of the first reference signal; or, the pattern of the first reference signal is a subset of the pattern of the second reference signal; or, the pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in time domain, or are continuous in frequency domain; or, there is an association between the pattern of the first reference signal and the pattern of the second reference signal.

[0349] In some embodiments, the first reference signal or the second reference signal is used for at least one of: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

[0350] In some embodiments, the configuration information of the reference signal includes third indication information, and the third indication information is used to indicate at least one of the following: the starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein, the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position.

[0351] In some embodiments, the third indication information includes at least one of the following: first bitmap information, the first bitmap information is used to indicate the frequency domain starting position, frequency domain interval, and the number of frequency domain resources; second bitmap information, the second bitmap information is used to indicate the time domain starting position, time domain interval, and the number of time domain resources; pattern index indication information.

[0352] In some embodiments, the position of the resource unit of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: subcarrier spacing; frequency position; carrier; cell; time node; number of antenna ports; antenna port number; antenna port type; data channel transmission method; whether data is transmitted at the position of the resource unit of the first reference signal; purpose of the first reference signal, including training, supervision or inference; first specific condition.

[0353] In some embodiments, the first specific condition is based on at least one of the following: a threshold value; a parameter value; mobility; stationary; a non-acknowledgement (NACK) message; activation signaling or deactivation signaling; a timer.

[0354] In some embodiments, processing the first reference signal also requires at least one of the following information: movement speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integrated, multiple-input multiple-output MIMO, number of MIMO layers, smart metasurface RIS parameters, sequence, subband information, and scheduling information.

[0355] In some embodiments, at least one item of information is transmitted based on at least one of the following: radio resource control RRC signaling, media access control element MAC CE signaling, downlink control information DCI, low power wake-up signal LP-WUS, physical downlink shared channel PDSCH, system message SI; or, at least one item of information is transmitted through configuration information of the first reference signal.

[0356] In some embodiments, the receiving unit 403 is configured to receive information of a third reference signal, where the information of the third reference signal is obtained based on the first reference signal.

[0357] In some embodiments, the information of the third reference signal includes at least one of the following: a pattern of the third reference signal, a time-frequency domain resource location, a frequency point, a frequency band, a port, a beam, the number of resource units of the third reference signal, and the location of the resource units of the third reference signal.

[0358] In some embodiments, the receiving unit 403 is further configured to receive downlink reference signal information, where the downlink reference signal information is obtained by processing the first reference signal.

[0359] In some embodiments, the information of the downlink reference signal includes at least one of the following: selection information of the downlink reference signal, pattern information of the downlink reference signal, auxiliary information of the downlink reference signal, location information of the resource unit of the downlink reference signal, type information of the downlink reference signal, and a fallback indication of the downlink reference signal.

[0360] In some embodiments, the downlink reference signal information is sent based on a first transmission mode, and the first transmission mode includes at least one of the following: media access control MAC signaling, RRC signaling, physical uplink control channel PUCCH, uplink control information UCI, and physical random access channel PRACH.

[0361] In some embodiments, in some embodiments, the first reference signal includes a fourth reference signal and a fifth reference signal.

[0362] In some embodiments, the fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sending based on the fourth reference signal or the fifth reference signal.

[0363] In some embodiments, the fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on the fourth indication information or the second specific condition.

[0364] In some embodiments, the fourth indication information includes at least one of the following: DCI, MAC CE signaling, LP-WUS; the second specific condition is based on at least one of the following: threshold value; parameter value; mobility; static state; feedback NACK message; reception of deactivation signaling; timer.

[0365] In some embodiments, the configuration information of the first reference signal includes first configuration information and second configuration information.

[0366] In some embodiments, the first configuration information and the second configuration information satisfy at least one of the following: during the period when the first configuration information is effective, when a third specific condition is satisfied, the second configuration information is triggered to take effect; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first reference signal is processed according to the second configuration information; or, during the period when the first configuration information is effective, when the third specific condition is satisfied, the first configuration information is deactivated and the second configuration information is activated; the first reference signal is processed according to the first configuration information or the second configuration information through signaling indication or activation signaling determination.

[0367] In some embodiments, the third specific condition includes at least one of the following: receiving a second signaling, the second signaling including at least one of the following: MAC CE signaling, RRC signaling, DCI, system information SI; timer expiration; feedback NACK information; failure to meet a specific indicator or threshold value.

[0368] In some embodiments, the first configuration information includes at least one of the following: a third pattern of the first reference signal; a configuration in a specific mode; a configuration of the first DMRS; the second configuration information includes at least one of the following: a fourth pattern of the first reference signal; a default configuration or a predefined configuration or a high-level configuration; a configuration of the second DMRS.

[0369] It should be noted that the units in Figures 20 and 21 may also be referred to as modules. For example, the sending unit may be referred to as a sending module. In addition, in the embodiments shown in Figures 20 and 21, the names of the units may not be those shown in the figures. For example, the sending unit may be referred to as a communication unit, and the receiving unit may be referred to as a communication unit.

[0370] If the various units in Figures 20 and 21 are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present disclosure. The storage medium for storing computer software products includes various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0371] When the communication device 30 or 40 implements the functions of the integrated modules in hardware, the present disclosure provides a schematic structural diagram of the communication device. As shown in Figure 22, the communication device 50 includes: a processor 502, a communication interface 503, and a bus 504. In one embodiment, the communication device 50 may also include a memory 501.

[0372] Processor 502 may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 502 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the present disclosure. Processor 502 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, or a combination of a DSP and a microprocessor.

[0373] The communication interface 503 is used to connect to other devices via a communication network, such as Ethernet, wireless access network, wireless local area network (WLAN), etc.

[0374] The memory 501 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0375] As a possible implementation, the memory 501 can exist independently of the processor 502. The memory 501 can be connected to the processor 502 via a bus 504 to store instructions or program codes. When the processor 502 calls and executes the instructions or program codes stored in the memory 501, the communication method provided in the embodiment of the present disclosure can be implemented.

[0376] In another possible implementation, the memory 501 may also be integrated with the processor 502 .

[0377] Bus 504 can be an Extended Industry Standard Architecture (EISA) bus, etc. Bus 504 can be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, FIG22 shows only one thick line, but this does not mean that there is only one bus or only one type of bus.

[0378] Through the description of the above implementation methods, technical personnel in the relevant field can clearly understand that for the convenience and conciseness of the description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the base station or terminal is divided into different functional modules to complete all or part of the functions described above.

[0379] The embodiments of the present disclosure also provide a computer-readable storage medium. All or part of the processes in the above-mentioned method embodiments can be completed by computer instructions to the relevant hardware. The program can be stored in the above-mentioned computer-readable storage medium. When the program is executed, it can include the processes of the above-mentioned method embodiments. The computer-readable storage medium can be the memory of any of the above-mentioned embodiments. The above-mentioned computer-readable storage medium can also be an external storage device of the above-mentioned first node or second node, such as a plug-in hard disk, a smart memory card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the above-mentioned first node or second node. Furthermore, the above-mentioned computer-readable storage medium can also include both the internal storage unit of the above-mentioned first node or second node and an external storage device. The above-mentioned computer-readable storage medium is used to store the above-mentioned computer program and other programs and data required by the above-mentioned first node or second node. The above-mentioned computer-readable storage medium can also be used to temporarily store data that has been output or is to be output.

[0380] An embodiment of the present disclosure further provides a computer program product, which includes a computer program. When the computer program product is run on a computer, the computer is enabled to execute any one of the communication methods provided in the above embodiments.

[0381] Although the present disclosure is described herein in conjunction with various embodiments, in the process of implementing the disclosure for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0382] Although the present disclosure has been described with reference to specific features and embodiments thereof, it will be apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, this specification and the drawings are merely illustrative of the present disclosure as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present disclosure. Obviously, those skilled in the art may make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, the present disclosure is intended to encompass such modifications and variations if they fall within the scope of the claims of the present disclosure and their equivalents.

[0383] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A communication method, wherein: Applied to the first node, the method includes: receiving configuration information of a first reference signal; The first reference signal is processed based on configuration information of the first reference signal.

2. The method according to claim 1, wherein The configuration information of the first reference signal includes a location of a resource unit of the first reference signal, and the resource unit includes a first resource unit and a second resource unit.

3. The method according to claim 1 or 2, wherein: The first reference signal is a modulation and demodulation reference signal (DMRS).

4. The method according to claim 2, wherein: The first resource unit is used to carry a non-zero power first reference signal, and the second resource unit is used to carry a zero power first reference signal; or, The first resource unit and the second resource unit are used to carry a first reference signal with non-zero power; or, The first resource unit is used to transmit a data channel and the first reference signal, and the second resource unit is used to transmit the first reference signal; or The port corresponding to the first resource unit is the same as the port corresponding to the data channel, and the port corresponding to the second resource unit is different from the port corresponding to the data channel; or The position of the second resource unit is determined according to the position of the first resource unit; or, The location of the second resource unit is a subset of the location of the first resource unit; or, The position of the second resource unit does not overlap with the position of the first resource unit; or, The position of the first resource unit and the position of the second resource unit are continuous in the time domain or in the frequency domain; or, The number of the second resource units is determined according to the number of the first resource units; or, The sum of the number of the second resource units and the number of the first resource units is a specific value; or, The number of the second resource units is in a ratio relationship to the number of the first resource units.

5. The method according to claim 2, wherein: The configuration information of the first reference signal includes a first parameter and a second parameter, the first parameter is used to determine the position of the first resource unit, and the second parameter is used to determine the position of the second resource unit.

6. The method according to claim 5, wherein: The position of the second resource unit is determined according to the second parameter and the first parameter; or, The second parameter is associated with the first parameter.

7. The method according to claim 2, wherein: The configuration information of the first reference signal includes a third parameter and a fourth parameter, the third parameter is used to indicate a position of a resource unit of the first reference signal, and the fourth parameter is used to indicate a position of the first resource unit or a position of the second resource unit.

8. The method according to claim 2, wherein: The configuration information of the first reference signal includes a fifth parameter and a sixth parameter, the fifth parameter is used to indicate the location of the resource unit of the first reference signal, and the sixth parameter is used to indicate at least one of the following items of the first reference signal: function, purpose, and type.

9. The method according to claim 2 or 4, wherein: There is an offset between the power of the first resource unit and the power of the second resource unit; or, The power of the second resource unit is obtained according to the power of the first resource unit; or, There is a correlation between the power of the first resource unit and the power of the second resource unit.

10. The method according to claim 1, wherein The configuration information of the first reference signal includes a pattern of the first reference signal, where the pattern of the first reference signal is used to indicate a location of a resource unit of the first reference signal.

11. The method according to claim 10, wherein: The pattern of the first reference signal includes a first pattern and / or a second pattern; The positions of the resource elements in the first pattern are used to transmit a data channel and the first reference signal, and the positions of the resource elements in the second pattern are used to transmit the first reference signal; or, The first pattern and the second pattern are used to carry a first reference signal with non-zero power; or, The first pattern is used to transmit the data channel and the first reference signal, and the second pattern is used to transmit the first reference signal; or The positions of the second resource units determined by the second pattern are a subset of the first resource units determined by the first pattern; or, The position of the second resource unit determined by the second pattern and the position of the first resource unit determined by the first pattern do not overlap; or, The position of the first resource unit determined by the first pattern and the position of the second resource unit determined by the second pattern are continuous in the time domain or in the frequency domain.

12. The method according to claim 10, wherein: The method further comprises: receiving first indication information, where the first indication information is used to activate or deactivate the pattern of the first reference signal; or The first indication information is used to activate or deactivate or determine a resource element subset of the pattern of the first reference signal; or, The first indication information is used to activate or deactivate or determine signal transmission or channel transmission based on the pattern of the first reference signal; or, The pattern of the first reference signal includes multiple patterns, and the first indication information is used to activate or deactivate or determine at least one pattern among the patterns of the first reference signal.

13. The method according to claim 10, wherein: The method further comprises: determining a pattern of the second reference signal based on the pattern of the first reference signal; or, Second indication information is received, where the second indication information is used to determine a pattern of the second reference signal.

14. The method according to claim 13, wherein The configuration information of the first reference signal includes second indication information.

15. The method according to claim 13, wherein The pattern of the second reference signal is a subset of the pattern of the first reference signal; or, The pattern of the first reference signal is a subset of the pattern of the second reference signal; or, The pattern of the first reference signal and the pattern of the second reference signal partially overlap, or are continuous in time domain, or continuous in frequency domain; or, There is a correlation between the pattern of the first reference signal and the pattern of the second reference signal.

16. The method according to claim 13, wherein The first reference signal or the second reference signal is used for at least one of the following: training, supervision, inference, data transmission or reception, control channel transmission, reception, or detection, or measurement.

17. The method according to claim 1, wherein The configuration information of the first reference signal includes third indication information, where the third indication information is used to indicate at least one of the following: The starting position of the first reference signal, the frequency domain interval, the time domain interval, the sequence length of the first reference signal, the sequence type of the first reference signal, the number of time domain resources of the first reference signal, and the number of frequency domain resources of the first reference signal; wherein the starting position of the first reference signal includes the frequency domain starting position and the time domain starting position.

18. The method according to claim 17, wherein The third indication information includes at least one of the following: First bitmap information, where the first bitmap information is used to indicate the frequency domain starting position, the frequency domain interval, and the number of frequency domain resources; second bitmap information, where the second bitmap information is used to indicate the time domain starting position, the time domain interval, and the number of time domain resources; Pattern index indication information.

19. The method according to claim 1, wherein The position of the resource element of the first reference signal or the pattern of the first reference signal is determined based on at least one of the following: Time domain resources; Frequency domain resources; subcarrier spacing; Frequency location; Carrier information; Cell information; Temporal location; Antenna port information The transmission mode of the data channel; whether data is transmitted at the location of the resource element of the first reference signal; The purpose of the first reference signal, including training, supervision or inference; First specific condition.

20. The method according to claim 19, wherein The first specific condition is based on at least one of the following: Threshold value; Parameter value; Mobility; still; Non-confirmation NACK message; Activation signaling or deactivation signaling; Timer.

21. The method according to claim 1, wherein Processing the first reference signal also requires at least one of the following information: movement speed, modulation mode, carrier frequency, subcarrier spacing, bandwidth, antenna information, scene information, near field, far field, integrated, multiple-input multiple-output MIMO, number of MIMO layers, smart metasurface RIS parameters, sequence, subband information, and scheduling information.

22. The method according to claim 21, wherein The at least one item of information is transmitted based on at least one of the following: radio resource control RRC signaling, media access control element MAC CE signaling, downlink control information DCI, low power wake-up signal LP-WUS, physical downlink shared channel PDSCH, system message SI; or, The at least one item of information is transmitted through configuration information of the first reference signal.

23. The method according to claim 1, wherein The method further comprises: Obtaining information of a third reference signal according to the first reference signal; Send information of the third reference signal.

24. The method according to claim 23, wherein The information of the third reference signal includes at least one of the following: The pattern of the third reference signal, the time-frequency domain resource position, the frequency point, the frequency band, the port, the beam, the number of resource units of the third reference signal, and the position of the resource units of the third reference signal.

25. The method according to claim 1, wherein The method further comprises: According to the processing of the first reference signal, information of a downlink reference signal is sent.

26. The method according to claim 25, wherein The information of the downlink reference signal includes at least one of the following: selection information of the downlink reference signal, pattern information of the downlink reference signal, auxiliary information of the downlink reference signal, location information of the resource unit of the downlink reference signal, type information of the downlink reference signal, and fallback indication of the downlink reference signal.

27. The method according to claim 25, wherein The information of sending a downlink reference signal includes: The downlink reference signal information is sent based on a first transmission mode, where the first transmission mode includes at least one of the following: Media Access Control (MAC) signaling, RRC signaling, physical uplink control channel (PUCCH), uplink control signaling Information UCI, physical random access channel PRACH.

28. The method according to claim 1, wherein The first reference signal includes a fourth reference signal and a fifth reference signal.

29. The method according to claim 28, wherein The fourth reference signal and the fifth reference signal are uplink reference signals, and the first node performs uplink transmission or sending based on the fourth reference signal or the fifth reference signal.

30. The method of claim 28, wherein The fourth reference signal and the fifth reference signal are downlink reference signals or uplink reference signals, and the first node determines that the first reference signal is the fourth reference signal or the fifth reference signal based on fourth indication information or a second specific condition.

31. The method according to claim 30, wherein The fourth indication information includes at least one of the following: DCI, MAC CE signaling, LP-WUS; or, The second specific condition is based on at least one of the following: Threshold value; Parameter value; Mobility; static state; Feedback NACK message; Activation signaling or deactivation signaling; Timer.

32. The method of claim 1, wherein The configuration information of the first reference signal includes first configuration information and second configuration information.

33. The method according to claim 32, wherein The first configuration information and the second configuration information satisfy at least one of the following: During the period when the first configuration information is in effect, if a third specific condition is met, triggering the second configuration information to take effect; or During the period when the first configuration information is effective, if a third specific condition is met, processing the first reference signal according to the second configuration information; or, During the period when the first configuration information is effective, if the third specific condition is met, deactivate the first configuration information and activate the second configuration information; The first reference signal is processed according to the first configuration information or the second configuration information through signaling indication or activation signaling determination.

34. The method according to claim 33, wherein The third specific condition includes at least one of the following: receiving second signaling, where the second signaling includes at least one of the following: MAC CE signaling, RRC signaling, DCI, and system information SI; The timer times out; Feedback NACK information; Failure to meet a specific metric or threshold.

35. The method of claim 32, wherein: The first configuration information includes at least one of the following: a third pattern of the first reference signal; Configuration in specific mode; Configuration of the first DMRS; The second configuration information includes at least one of the following: a fourth pattern of the first reference signal; Default configuration or predefined configuration or high-level configuration; Configuration of the second DMRS.

36. A communication method, wherein: Applied to the second node, the method includes: Sending configuration information of a first reference signal; The first reference signal is processed based on configuration information of the first reference signal.

37. A communication device, wherein: include: memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 36 is performed.

38. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 36.

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