A method and apparatus used in a node for wireless communication

Abstract

The application discloses a method and device used in a node for wireless communication. The node first receives first signaling used for indicating a first reference signal resource; then receives or transmits a first signal in a first time-frequency resource set, the first reference signal resource being used for determining a spatial parameter of the first signal; the first signaling is used for indicating the first time-frequency resource set; the first signaling indicates the first reference signal resource from K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources; time domain resources occupied by the first time-frequency resource set are used for determining the target reference signal resource set from M1 reference signal resource sets. The application improves the determination mode of TCI, and further improves the beamforming transmission mode under the flexible duplex mode or the variable link direction of the spectrum configuration, so as to optimize the system performance.

Description

TECHNICAL FIELD

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission scheme and apparatus for flexible transmission direction configuration in wireless communication. BACKGROUND

[0002] The application scenarios of future wireless communication systems are increasingly diversified, and different application scenarios put forward different performance requirements for the system. In order to meet the different performance requirements of various application scenarios, it is decided at the 3GPP (3rd Generation Partnership Project) RAN (Radio Access Network) #72 plenary meeting to study the new radio technology (NR, New Radio) (or 5G), and the new radio technology (NR, New Radio) WI (Work Item) is passed at the 3GPP RAN #75 plenary meeting, and the standardization work of NR is started. It is decided at the 3GPP RAN #86 plenary meeting to start the SI (Study Item) and WI (Work Item) work of NR Rel-17, and it is expected to start the SI and WI of NR Rel-18 at the 3GPP RAN #94e plenary meeting.

[0003] In the new radio technology, enhanced mobile broadband (eMBB), ultra-reliable and low latency communication (URLLC), and massive machine type communication (mMTC) are three main application scenarios. In the NR Rel-16 system, compared with the LTE (Long-Term Evolution) and LTE-A (enhanced long-term evolution) frame structure, one major difference is that the symbols in a slot can be configured as downlink, uplink and flexible. For the symbol configured as "Flexible", the terminal will receive downlink on the symbol, and the symbol can also be used for uplink scheduling. The above-mentioned manner is more flexible than the LTE and LTE-A systems. SUMMARY

[0004] In the existing NR system, the spectrum resources are statically divided into FDD spectrum and TDD spectrum. For the TDD spectrum, the base station and the user equipment work in a half-duplex mode. This half-duplex mode avoids self-interference and can alleviate the impact of cross-link interference, but also brings the decrease of resource utilization and the increase of delay. In view of these problems, it is possible to support flexible duplex mode or variable link direction (uplink or downlink or flexible) on the TDD spectrum or FDD spectrum as a possible solution.

[0005] However, when the uplink and downlink configuration in the system becomes more flexible, especially for the base station, downlink and uplink transmission will be carried out simultaneously on different frequency bands in the same time slot. In this scenario, the interference environment faced by the beamforming-based transmission will become more complex, and the traditional TCI (Transmission Configuration Indication) configuration and selection method needs to be redesigned.

[0006] For the configuration problem of supporting flexible duplex mode link direction, the present application discloses a solution. It should be noted that in the description of the present application, the flexible duplex mode is only taken as a typical application scenario or example; the present application is also applicable to other scenarios facing similar problems (for example, there are scenarios where the link direction changes, or other scenarios supporting multi-level configuration of transmission direction, or scenarios with more powerful base stations or user equipment, such as scenarios supporting same frequency full duplex, or for different application scenarios, such as eMBB and URLLC, similar technical effects can also be achieved. In addition, the use of a unified solution in different scenarios (including but not limited to eMBB and URLLC scenarios) helps to reduce hardware complexity and cost. In the case of no conflict, the embodiments in the first node device and the features in the embodiments can be applied to the second node device, and vice versa. In particular, the explanation of the terms (Terminology), nouns, functions, and variables in the present application (if not specially specified) can refer to the definitions in the 3GPP specification protocol TS (Technical Specification) 36 series, TS 38 series, and TS 37 series.

[0007] The present application discloses a method in a first node for wireless communication, comprising:

[0008] receiving a first signaling, the first signaling being used to indicate a first reference signal resource;

[0009] receiving a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine the spatial parameters of the first signal;

[0010] The first signaling is used for indicating the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; and time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0011] The present application discloses a method in a first node for wireless communication, comprising:

[0012] receiving first signaling, the first signaling being used for indicating a first reference signal resource;

[0013] transmitting a first signal in a first time-frequency resource set, the first reference signal resource being used for determining a spatial parameter of the first signal;

[0014] The first signaling is used for indicating the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; and time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0015] As an embodiment, one technical feature of the above method is that the TCI or SRI (Sounding Reference Signal Resource Indicator) indicated by the first signaling is associated with time domain resources occupied by the first time-frequency resource set; when the interference condition corresponding to the time domain resources occupied by the first time-frequency resource set changes, one of the M1 reference signal resource sets corresponding to the changed interference condition can be used as the target reference signal resource set, thereby reducing the interference and ensuring the performance of the system.

[0016] As an embodiment, another technical feature of the above method is that when the first node receives the first signal, and the time domain resource occupied by the first time-frequency resource set is configured as "F" (Flexible), which means that the base station can schedule a terminal other than the first node for uplink transmission in the time domain resource occupied by the first time-frequency resource set, and the TCI adopted by the first signal should avoid interference from the uplink beam; on the contrary, the time domain resource occupied by the first time-frequency resource set is configured as "D" (Downlink), and the above-mentioned interference from the uplink beam does not exist because the base station does not schedule uplink transmission in the time domain resource.

[0017] As an embodiment, another technical feature of the above method is that when the first node receives the first signal, and the time domain resource occupied by the first time-frequency resource set is configured as "F" (Flexible), which means that the base station can schedule a terminal other than the first node for uplink transmission in the time domain resource occupied by the first time-frequency resource set, and the TCI adopted by the first signal should avoid interference from the uplink beam; on the contrary, the time domain resource occupied by the first time-frequency resource set is configured as "D" (Downlink), and the above-mentioned interference from the uplink beam does not exist because the base station does not schedule uplink transmission in the time domain resource.

[0018] According to an aspect of the present application, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, and the time domain resource occupied by the first time-frequency resource set includes a first symbol set; when the format adopted by the symbol in the first symbol set is a first format, the target reference signal resource set is the first reference signal resource set; when the format adopted by the symbol in the first symbol set is a second format, the target reference signal resource set is the second reference signal resource set; and the first format and the second format are different.

[0019] As an embodiment, a technical feature of the above method is that the target reference signal resource set is determined according to the format adopted by the symbol included in the time domain resource occupied by the first time-frequency resource set, and different reference signal resource sets are selected as the target reference signal resource set for different formats to reduce interference and ensure system performance.

[0020] According to an aspect of the present application, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is a time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is a time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; formats of any time unit in the first time unit set are different from formats of any time unit in the second time unit set.

[0021] As an embodiment, the technical features of the above method are characterized in that: the target reference signal resource set is determined according to a format adopted by a time slot to which time domain resources occupied by the first time-frequency resource set belong, and different reference signal resource sets are selected as the target reference signal resource set for different formats, so as to reduce interference and ensure system performance.

[0022] According to an aspect of the present application, it includes:

[0023] receiving a first information block;

[0024] The first information block is used to indicate a format adopted by a symbol included in the time domain resources occupied by the first time-frequency resource set.

[0025] According to an aspect of the present application, it includes:

[0026] receiving a second information block;

[0027] The second information block is used to indicate the M1 reference signal resource sets.

[0028] According to an aspect of the present application, the transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold value, the first threshold value is one of M2 candidate threshold values, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold value from the M2 candidate threshold values; the M2 is a positive integer greater than 1.

[0029] According to an aspect of the present application, the transmission power of the first signal is equal to a first power value, the first power value is linearly related to a target power value, the target power value is equal to one of M3 candidate power values, the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, and the M3 is a positive integer greater than 1.

[0030] As an embodiment, one technical feature of the above two methods is that when the first node receives the first signal, and the time domain resource occupied by the first time-frequency resource set is configured as "F", it means that the base station may schedule a terminal other than the first node for uplink transmission in the time domain resource occupied by the first time-frequency resource set, and then the transmission power value of the first signal should consider the interference from the uplink beam, and power value lifting is needed. In contrast, the time domain resource occupied by the first time-frequency resource set is configured as "D", and the above interference from the uplink does not exist because the base station will not schedule uplink transmission in the time domain resource.

[0031] As an embodiment, another technical feature of the above two methods is that further, the transmission power of the first signal is associated with the time domain resource occupied by the first time-frequency resource set; when the first node transmits the first signal, and the time domain resource occupied by the first time-frequency resource set is configured as "F", it means that the base station may schedule a terminal other than the first node for downlink reception in the time domain resource occupied by the first time-frequency resource set, and then the first signal transmission power value should be reduced to avoid interference with other terminal downlink reception. In contrast, the time domain resource occupied by the first time-frequency resource set is configured as "U", and the above interference with downlink reception does not exist because the base station will not schedule downlink transmission in the time domain resource.

[0032] The present application discloses a method in a second node for wireless communication, comprising:

[0033] transmitting first signaling, the first signaling being used to indicate a first reference signal resource;

[0034] transmitting a first signal in a first time-frequency resource set, the first reference signal resource being used to determine a spatial parameter of the first signal;

[0035] Wherein, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; the time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0036] The present application discloses a method in a second node for wireless communication, comprising:

[0037] transmitting first signaling, the first signaling being used to indicate a first reference signal resource;

[0038] receiving a first signal in a first time-frequency resource set, the first reference signal resource being used to determine a spatial parameter of the first signal;

[0039] wherein the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 being a positive integer greater than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set being one of M1 reference signal resource sets, M1 being a positive integer greater than 1; time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0040] According to an aspect of the present application, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set include a first symbol set; when a format adopted by a symbol in the first symbol set is a first format, the target reference signal resource set is the first reference signal resource set; when the format adopted by the symbol in the first symbol set is a second format, the target reference signal resource set is the second reference signal resource set; the first format and the second format are different.

[0041] According to an aspect of the present application, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is one time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is one time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; a format of any time unit in the first time unit set is different from a format of any time unit in the second time unit set.

[0042] According to an aspect of the present application, comprising:

[0043] transmitting a first information block;

[0044] wherein the first information block is used to indicate a format adopted by a symbol included in the time domain resources occupied by the first time-frequency resource set.

[0045] According to an aspect of the present application, comprising:

[0046] receiving a second information block;

[0047] wherein the second information block is used to indicate the M1 reference signal resource sets.

[0048] According to an aspect of the present application, the transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold value, the first threshold value is one of M2 candidate threshold values, and the time domain resource occupied by the first time-frequency resource set is used to determine the first threshold value from the M2 candidate threshold values; the M2 is a positive integer greater than 1.

[0049] According to an aspect of the present application, the transmission power of the first signal is equal to a first power value, the first power value is linearly related to a target power value, the target power value is equal to one of M3 candidate power values, and the time domain resource occupied by the first time-frequency resource set is used to determine the target power value from the M3 candidate power values, the M3 is a positive integer greater than 1.

[0050] The present application discloses a first node for wireless communication, comprising:

[0051] a first receiver, receiving a first signaling, the first signaling is used to indicate a first reference signal resource;

[0052] a first transceiver, receiving a first signal in a first time-frequency resource set, the first reference signal resource is used to determine the spatial parameter of the first signal;

[0053] wherein the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; the time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0054] The present application discloses a first node for wireless communication, comprising:

[0055] a first receiver, receiving a first signaling, the first signaling is used to indicate a first reference signal resource;

[0056] a first transceiver, transmitting a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal;

[0057] wherein the first signaling is used to indicate the first set of time-frequency resources; the first reference signal resource is one of K1 candidate reference signal resources, K1 being a positive integer greater than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprises the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer greater than 1; time-domain resources occupied by the first set of time-frequency resources are used to determine the target set of reference signal resources from the M1 sets of reference signal resources.

[0058] The present application discloses a second node for wireless communication, comprising:

[0059] a first transmitter, transmitting first signaling, the first signaling being used to indicate a first reference signal resource;

[0060] a second transceiver, receiving a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal;

[0061] wherein the first signaling is used to indicate the first set of time-frequency resources; the first reference signal resource is one of K1 candidate reference signal resources, K1 being a positive integer greater than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprises the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer greater than 1; time-domain resources occupied by the first set of time-frequency resources are used to determine the target set of reference signal resources from the M1 sets of reference signal resources.

[0062] The present application discloses a second node for wireless communication, comprising:

[0063] a first transmitter, transmitting first signaling, the first signaling being used to indicate a first reference signal resource;

[0064] a second transceiver, receiving a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal;

[0065] The first signaling is used for indicating the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; time domain resources occupied by the first time-frequency resource set are used for determining the target reference signal resource set from the M1 reference signal resource sets.

[0066] As an embodiment, compared with the conventional scheme, the present application has the following advantages:

[0067] -.The TCI or SRI indicated by the first signaling is associated with the time domain resources occupied by the first time-frequency resource set; when the interference condition corresponding to the time domain resources occupied by the first time-frequency resource set changes, one of the M1 reference signal resource sets corresponding to the interference condition can be used as the target reference signal resource set, thereby reducing the interference and ensuring the performance of the system;

[0068] -.When the first node receives the first signal and the time domain resources occupied by the first time-frequency resource set are configured as “F”, the TCI used by the first signal should avoid the interference from the uplink beam; on the contrary, when the time domain resources occupied by the first time-frequency resource set are configured as “D”, the above-mentioned interference from the uplink beam does not exist, and the existing configuration mode of the TCI list for the downlink data channel can be used;

[0069] -.When the first node transmits the first signal and the time domain resources occupied by the first time-frequency resource set are configured as “F”, the SRI used by the first signal should avoid the interference to the downlink beam; on the contrary, when the time domain resources occupied by the first time-frequency resource set are configured as “U”, the above-mentioned interference to the downlink beam does not exist, and the existing configuration mode of the SRI list for the uplink data channel can be used;

[0070] -.The time domain resources occupied by the first time-frequency resource set are associated with the transmission power value of the first signal, and then the transmission power value of the first signal is determined according to whether the occupied time domain resources are configured as “F”, so as to avoid the interference between the corresponding direction transmission and improve the performance. BRIEF DESCRIPTION OF DRAWINGS

[0071] Other characteristics, objects and advantages of the present application will become more apparent from the following detailed description of non-restrictive embodiments, made with reference to the accompanying drawings.

[0072] Figure 1 A process flow diagram of a first node according to an embodiment of the application is shown;

[0073] Figure 2 A schematic diagram of a network architecture according to an embodiment of the application is shown;

[0074] Figure 3 A schematic diagram of an embodiment of a radio protocol architecture for the user and control planes according to an embodiment of the application is shown;

[0075] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of the application is shown;

[0076] Figure 5 A flow diagram of first signaling according to an embodiment of the application is shown;

[0077] Figure 6 A flow diagram of first signaling according to another embodiment of the application is shown;

[0078] Figure 7 A schematic diagram of M1 sets of reference signal resources according to an embodiment of the application is shown;

[0079] Figure 8 A schematic diagram of time domain resources occupied by the first set of time-frequency resources according to an embodiment of the application is shown;

[0080] Figure 9 A schematic diagram of an application scenario according to an embodiment of the application is shown;

[0081] Figure 10 A schematic diagram of an application scenario according to another embodiment of the application is shown;

[0082] Figure 11 A block diagram of a processing apparatus in a first node device according to an embodiment of the application is shown;

[0083] Figure 12 A block diagram of a processing apparatus in a second node device according to an embodiment of the application is shown. DETAILED DESCRIPTION

[0084] The technical solutions of the present application will be further described below in conjunction with the drawings, and it should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0085] Example 1

[0086] Embodiment 1 illustrates a processing flow chart of a first node, as shown in FIG. 1A. Figure 1 Each block represents a step in the flow chart 100 shown in FIG. 1A. In Embodiment 1, the first node in the present application receives a first signaling in step 101, the first signaling is used to indicate a first reference signal resource; operates a first signal in a first set of time-frequency resources in step 102, the first reference signal resource is used to determine a spatial parameter of the first signal. Figure 1 Each block represents a step in the flow chart 100 shown in FIG. 1A. In Embodiment 1, the first node in the present application receives a first signaling in step 101, the first signaling is used to indicate a first reference signal resource; operates a first signal in a first set of time-frequency resources in step 102, the first reference signal resource is used to determine a spatial parameter of the first signal.

[0087] In Embodiment 1, the first signaling is used to indicate the first set of time-frequency resources; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources includes the K1 candidate reference signal resources, the target set of reference signal resources is one of M1 sets of reference signal resources, M1 is a positive integer greater than 1; the time domain resources occupied by the first set of time-frequency resources are used to determine the target set of reference signal resources from the M1 sets of reference signal resources; the operation is receiving, or the operation is transmitting.

[0088] As an embodiment, the first signaling is a DCI (Downlink control information).

[0089] As an embodiment, the operation is receiving, and the first signaling is a downlink grant.

[0090] As an embodiment, the operation is transmitting, and the first signaling is an uplink grant.

[0091] As an embodiment, the physical layer channel occupied by the first signaling includes a PDCCH (Physical Downlink Control Channel).

[0092] As an embodiment, the first signaling is a MAC (Medium Access Control) CE (Control Elements).

[0093] As an embodiment, the physical layer channel occupied by the first signaling includes a PDSCH (Physical Downlink Shared Channel).

[0094] As an embodiment, the first signaling is a RRC (Radio Resource Control) signaling.

[0095] As an embodiment, the first reference signal resource comprises a CSI-RS (Channel-State Information Reference Signals) resource.

[0096] As an embodiment, the first reference signal resource comprises a DMRS (Demodulation Reference Signal) resource.

[0097] As an embodiment, the first reference signal resource comprises a SRS (Sounding Reference Signal) resource.

[0098] As an embodiment, the first reference signal resource comprises a SSB (SS / PBCH Block).

[0099] As an embodiment, the first reference signal resource corresponds to a TCI.

[0100] As an embodiment, the first reference signal resource corresponds to a TCI-State.

[0101] As an embodiment, the first reference signal resource corresponds to a TCI-StateId.

[0102] As an embodiment, the first reference signal resource corresponds to a SRI.

[0103] As an embodiment, the first time-frequency resource set occupies a positive integer greater than 1 RE (Resource Elements).

[0104] As an embodiment, the first signal is a baseband signal.

[0105] As an embodiment, the first signal is a wireless signal.

[0106] As an embodiment, the operation is receiving, and the physical layer channel occupied by the first signal comprises a PDSCH.

[0107] As an embodiment, the operation is receiving, and the transmission channel occupied by the first signal comprises a DL-SCH (Downlink Shared Channel).

[0108] As one embodiment, the operation is transmitting, and the physical layer channel occupied by the first signal comprises a PUSCH (Physical Uplink Shared Channel).

[0109] As one embodiment, the operation is transmitting, and the transmission channel occupied by the first signal comprises a UL-SCH (Uplink Shared Channel).

[0110] As one embodiment, the operation is receiving, and the spatial parameter of the first signal is a spatial parameter of a demodulation reference signal of a channel occupied by the first signal.

[0111] As one embodiment, the operation is receiving, and the spatial parameter is a QCL (Quasi Co-located) parameter.

[0112] As one embodiment, the operation is receiving, and the spatial parameter is a spatial reception parameter.

[0113] As one embodiment, the operation is receiving, and the spatial parameter is a spatial domain reception filter.

[0114] As one embodiment, the operation is receiving, and the meaning that the first reference signal resource is used to determine the spatial parameter of the first signal comprises that a demodulation reference signal of a channel occupied by the first signal is quasi co-located with the first reference signal resource.

[0115] As one embodiment, the operation is transmitting, and the spatial parameter is a spatial transmission parameter.

[0116] As one embodiment, the operation is transmitting, and the spatial parameter is a spatial domain transmission filter.

[0117] As one embodiment, the operation is transmitting, and the spatial parameter is a spatial relation.

[0118] As one embodiment, the operation is transmitting, and the spatial parameter comprises a precoder.

[0119] As one embodiment, the operation is transmitting, and the meaning that the first reference signal resource is used to determine the spatial parameter of the first signal comprises that a transmission precoding of the first signal is determined through the first reference signal resource.

[0120] As one embodiment, the type of QCL in the present application comprises a QCL Type A.

[0121] As an embodiment, the type of QCL in this application includes QCL Type B.

[0122] As an embodiment, the type of QCL in this application includes QCL Type C.

[0123] As an embodiment, the type of QCL in this application includes QCL Type D.

[0124] As an embodiment, the first signaling is used to indicate the time domain resources occupied by the first set of time-frequency resources.

[0125] As an embodiment, the first signaling is used to indicate the number of symbols occupied by the first set of time-frequency resources.

[0126] As an embodiment, the first signaling is used to indicate the time domain position of the first symbol occupied by the first set of time-frequency resources.

[0127] As an embodiment, the first signaling is used to indicate the time domain position of the earliest symbol in time domain occupied by the first set of time-frequency resources.

[0128] As an embodiment, the first signaling is used to indicate the frequency domain resources occupied by the first set of time-frequency resources.

[0129] As an embodiment, the first signaling is used to indicate the frequency domain position of the RB(s) (Resource Block(s)) occupied by the first set of time-frequency resources.

[0130] As an embodiment, any candidate reference signal resource in the K1 candidate reference signal resources includes at least one of a CSI-RS resource or an SSB.

[0131] As an embodiment, any candidate reference signal resource in the K1 candidate reference signal resources includes a DMRS resource.

[0132] As an embodiment, any candidate reference signal resource in the K1 candidate reference signal resources includes an SRS resource.

[0133] As an embodiment, any candidate reference signal resource in the K1 candidate reference signal resources corresponds to a TCI.

[0134] As an embodiment, any candidate reference signal resource in the K1 candidate reference signal resources corresponds to a TCI-State.

[0135] As an embodiment, any of the K1 candidate reference signal resources corresponds to one TCI-StateId.

[0136] As an embodiment, any of the K1 candidate reference signal resources corresponds to one SRI.

[0137] As an embodiment, the first signaling comprises a first field, the first field comprised in the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources.

[0138] As a sub-embodiment of this embodiment, the operation is receiving, the first signaling is PDCCH, the first field comprised in the first signaling is TCI field.

[0139] As a sub-embodiment of this embodiment, the operation is transmitting, the first signaling is PDCCH, the first field comprised in the first signaling is SRI field.

[0140] As an embodiment, the operation is receiving, the first signaling is TCI States Activation / Deactivation for UE-specific PDSCH MAC CE.

[0141] As an embodiment, the operation is transmitting, the first signaling is Serving Cell Set Based Spatial Relation Indication MAC CE.

[0142] As an embodiment, the target reference signal resource set corresponds to one TCI list, the TCI list comprises K1 TCIs, the K1 TCIs respectively correspond to K1 candidate reference signal resources.

[0143] As an embodiment, the target reference signal resource set corresponds to one SRI list, the SRI list comprises K1 TCIs, the K1 SRIs respectively correspond to K1 candidate reference signal resources.

[0144] As an embodiment, the M1 reference signal resource sets respectively correspond to M1 TCI lists.

[0145] As an embodiment, the M1 reference signal resource sets respectively correspond to M1 SRI lists.

[0146] As an embodiment, any of the M1 sets of reference signal resources comprises at least one reference signal resource, the reference signal resource comprises at least one of a CSI-RS resource, an SSB, a DMRS resource, or an SRS resource.

[0147] As an embodiment, any of the M1 sets of reference signal resources comprises at least one reference signal resource, the reference signal resource corresponds to one TCI.

[0148] As an embodiment, any of the M1 sets of reference signal resources comprises at least one reference signal resource, the reference signal resource corresponds to one TCI-State.

[0149] As an embodiment, any of the M1 sets of reference signal resources comprises at least one reference signal resource, the reference signal resource corresponds to one TCI-StateId.

[0150] As an embodiment, any of the M1 sets of reference signal resources comprises at least one reference signal resource, the reference signal resource corresponds to one SRI.

[0151] As an embodiment, the phrase “time domain resources occupied by the first set of time-frequency resources” means the time domain positions of the symbols occupied by the first set of time-frequency resources in time domain.

[0152] As an embodiment, the phrase “time domain resources occupied by the first set of time-frequency resources” means the time domain positions of the slots occupied by the first set of time-frequency resources in time domain.

[0153] As an embodiment, the phrase “time domain resources occupied by the first set of time-frequency resources” means the slot format of the slots occupied by the first set of time-frequency resources in time domain.

[0154] As an embodiment, the phrase “time domain resources occupied by the first set of time-frequency resources” means the slot format of the slots occupied by the first set of time-frequency resources in time domain.

[0155] As an embodiment, the phrase “time domain resources occupied by the first set of time-frequency resources” means the type of the symbols occupied by the first set of time-frequency resources in time domain, the type of the symbols is one of Downlink, Uplink, or Flexible.

[0156] As an embodiment, the meaning of the time domain resources occupied by the first set of time-frequency resources described by the above phrase includes: the type of time slots occupied by the first set of time-frequency resources in the time domain, the type of time slots being one of downlink, uplink or flexible.

[0157] As an embodiment, the symbol in the present application is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0158] As an embodiment, the symbol in the present application is an SC-FDMA (Single-Carrier Frequency Division Multiple Access) symbol.

[0159] As an embodiment, the symbol in the present application is an FBMC (Filter Bank Multi Carrier) symbol.

[0160] As an embodiment, the symbol in the present application is an OFDM symbol containing a CP (Cyclic Prefix).

[0161] As an embodiment, the symbol in the present application is a DFT-s-OFDM (Discrete Fourier Transform Spreading Orthogonal Frequency Division Multiplexing) symbol containing a CP.

[0162] As an embodiment, the time slot in the present application is a slot.

[0163] As an embodiment, the time slot in the present application occupies W1 consecutive symbols in the time domain, and W1 is a positive integer greater than 1.

[0164] As a sub-embodiment of this embodiment, under the condition of a normal cyclic prefix, W1 is equal to 14.

[0165] As a sub-embodiment of this embodiment, under the condition of an extended cyclic prefix, W1 is equal to 12.

[0166] As an embodiment, the first signal is generated by a TB (Transport Block).

[0167] As an embodiment, the first signal is generated by a CB (Code Block).

[0168] As one embodiment, the first signal is generated by a CBG (Code Block Group).

[0169] As one embodiment, the first signaling is used for scheduling the first signal.

[0170] As one embodiment, the operation is receiving, the first signaling is used for activating a SPS (Semi-Persistent Scheduling) configuration, and the first signal is a downlink transmission belonging to a downlink transmission granted by the SPS configuration.

[0171] As one embodiment, the operation is transmitting, the first signaling is used for activating a CG (Configured Grant), and the first signal is an uplink transmission belonging to an uplink transmission granted by the CG.

[0172] As one embodiment, the format of the symbol in the present application refers to the slot format adopted by the symbol.

[0173] As one embodiment, the format of the symbol in the present application refers to the transmission direction corresponding to the symbol.

[0174] As one embodiment, the format of the symbol in the present application refers to that the transmission direction corresponding to the symbol is one of “downlink”, “uplink” or “flexible”.

[0175] As one embodiment, the format of the slot in the present application refers to the slot format adopted by the slot.

[0176] As one embodiment, the format of the slot in the present application refers to the transmission direction corresponding to the slot.

[0177] As one embodiment, the format of the slot in the present application refers to that the transmission direction corresponding to the slot is one of “downlink”, “uplink” or “flexible”.

[0178] As one embodiment, the format of the time unit in the present application refers to the slot format adopted by the time unit.

[0179] As one embodiment, the format of the time unit in the present application refers to the transmission direction corresponding to the time unit.

[0180] As one embodiment, the format of the time unit in the present application refers to that the transmission direction corresponding to the time unit is one of “downlink”, “uplink” or “flexible”.

[0181] Example 2

[0182] Example 2 illustrates a schematic diagram of a network architecture, as described in Figure 2

[0183] Figure 2 ​A diagram illustrating a network architecture 200 of a 5G NR, LTE (Long-Term Evolution), and LTE-A (Long-Term Evolution Advanced) system is shown. The 5G NR or LTE network architecture 200 can be referred to as an EPS (Evolved Packet System) 200 or some other suitable terminology. The EPS 200 can include one UE (User Equipment) 201, NR-RAN (Next Generation Radio Access Network) 202, EPC (Evolved Packet Core) / 5G-CN (5G-Core Network) 210, HSS (Home Subscriber Server) 220, and Internet services 230. The EPS can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the EPS provides packet-switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application are amenable to use with networked systems including a plurality of interconnected components, with other suitable systems including a plurality of interconnected components, or with other types of cell networks. The NR-RAN includes a NR NodeB (gNB) 203 and other gNBs 204. The gNB 203 provides user and control plane protocol terminations toward the UE 201. The gNB 203 can be connected to the other gNBs 204 via an Xn interface (e.g., backhaul). The gNB 203 can also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a TRP, or some other suitable terminology. The gNB 203 provides an access point to the EPC / 5G-CN 210 for a UE 201. Examples of UEs 201 include a cellular phone, a smart phone, a session initiation protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a non-tethered personal branch system communication, a satellite mobile communication, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., MP3 player), a camera, a game console, a drone, a flying vehicle, a narrowband internet of things device, a machine type communication device, a land vehicle, a car, a wearable device, or any other similar functional device. Those skilled in the art will also readily appreciate that the UE 201 can be referred to as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wirelessThe EPC / 5G-CN 210 includes a MME (Mobility Management Entity) / AMF (Authentication Management Field) / UPF (User Plane Function) 211, other MME / AMF / UPF 214, a S-GW (Service Gateway) 212, and a P-GW (Packet Data Network Gateway) 213. The MME / AMF / UPF 211 is a control node that handles signaling between the UE 201 and the EPC / 5G-CN 210. Generally, the MME / AMF / UPF 211 provides bearer and connection management. All user IP (Internet Protocal) packets are transferred through the S-GW 212, which itself is connected to the P-GW 213. The P-GW 213 provides UE IP address allocation, among other functions. The P-GW 213 is connected to Internet services 230. The Internet services 230 include operator corresponding Internet protocol services, which can include the Internet, an intranet, IMS (IP Multimedia Subsystem), and packet switched streaming services, among others.

[0184] As one embodiment, the UE 201 corresponds to the first node in the present application.

[0185] As one embodiment, the UE 201 supports an unpaired spectrum scenario.

[0186] As one embodiment, the UE 201 supports flexible duplex frequency domain resource configuration.

[0187] As one embodiment, the UE 201 supports full duplex transmission.

[0188] As one embodiment, the UE 201 supports dynamic adjustment of uplink and downlink transmission directions.

[0189] As one embodiment, the gNB 203 corresponds to the second node in the present application.

[0190] As one embodiment, the gNB 203 supports an unpaired spectrum scenario.

[0191] As one embodiment, the gNB 203 supports flexible duplex frequency domain resource configuration.

[0192] As one embodiment, the gNB 203 supports Full Duplex transmission.

[0193] As one embodiment, the gNB 203 supports dynamic adjustment of uplink and downlink transmission direction.

[0194] Example 3

[0195] Figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane 350 and control plane 300 according to this application, as Figure 3 illustrated. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and control plane 300, Figure 3The radio protocol architecture for the control plane 300 between a first communication node device (UE, gNB, or RSU in V2X) and a second communication node device (gNB, UE, or RSU in V2X) is shown with three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical layer) signal processing functions. The L1 layer will be referred to as the PHY 301 herein. Layer 2 (L2 layer) 305 is above the PHY 301 and is responsible for the link between the first communication node device and the second communication node device using the PHY 301. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, a RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which are terminated at the second communication node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security functions that include the ciphering service to provide privacy of data packets, and the PDCP sublayer 304 also provides integrity protection of upper layer data packets. The PDCP sublayer 304 also provides support for in-sequence delivery of upper layer data packets and in- order delivery of upper layer data packets to reduce latency. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ. The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating the various radio resources (e.g., resource blocks) in one cell among the UEs. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture for the user plane 350 includes Layer 1 (L1 layer) and Layer 2 (L2 layer), which are generally the same as the corresponding layers and sublayers in the control plane 300 for the PHY 351, a PDCP sublayer 354 in the L2 layer 355, an RLC sublayer 353 in the L2 layer 355, and a MAC sublayer 352 in the L2 layer 355 for the first communication node device and the second communication node device, but the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead.The L2 layer 355 in the user plane 350 also includes a SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for the mapping between a QoS flow and a data radio bearer (DRB) to support the diversity of services. Although not illustrated, the first communication node device can have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at a P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0196] As one embodiment, the wireless protocol architecture in Figure 3 is applicable to the first node in the present application.

[0197] As one embodiment, the wireless protocol architecture in Figure 3 is applicable to the second node in the present application.

[0198] As one embodiment, the PDCP 304 of the second communication node device is used to generate the schedule of the first communication node device.

[0199] As one embodiment, the PDCP 354 of the second communication node device is used to generate the schedule of the first communication node device.

[0200] As one embodiment, the first signaling is generated at the MAC 302 or the MAC 352.

[0201] As one embodiment, the first signaling is generated at the RRC 306.

[0202] As one embodiment, the first signaling is generated at the PHY 301 or the PHY 351.

[0203] As one embodiment, the first signaling is generated at the PHY 301 or the PHY 351.

[0204] As one embodiment, the first signaling is generated at the MAC 302 or the MAC 352.

[0205] As one embodiment, the first signaling is generated at the RRC 306.

[0206] As one embodiment, the first information block is generated at the RRC 306.

[0207] As one embodiment, the first information block is generated at the MAC 302 or the MAC 352.

[0208] As an embodiment, the first information block is generated at the PHY 301 or the PHY 351.

[0209] As an embodiment, the second information block is generated at the RRC 306.

[0210] As an embodiment, the second information block is generated at the MAC 302 or the MAC 352.

[0211] As an embodiment, the first node is a terminal.

[0212] As an embodiment, the second node is a terminal.

[0213] As an embodiment, the second node is a TRP (Transmitter Receiver Point).

[0214] As an embodiment, the second node is a Cell.

[0215] As an embodiment, the second node is an eNB.

[0216] As an embodiment, the second node is a base station.

[0217] As an embodiment, the second node is used to manage multiple TRPs.

[0218] As an embodiment, the second node is a node used to manage multiple Cells.

[0219] As an embodiment, the second node is a node used to manage multiple carriers.

[0220] Example 4

[0221] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Fig. 4. Figure 4 Figure 4 Fig. 4 shows a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0222] The first communication device 450 comprises a controller / processor 459, a memory 460, a data source 467, a transmit processor 468, a receive processor 456, a multi-antenna transmit processor 457, a multi-antenna receive processor 458, a transmitter / receiver 454 and an antenna 452.

[0223] ​The second communications device 410 includes a controller / processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multi-antenna receive processor 472, a multi-antenna transmit processor 471, a transmitter / receiver 418, and antennas 420.

[0224] In the transmission from the second communications device 410 to the first communications device 450, upper layer packets from a core network are provided to the controller / processor 475 at the second communications device 410. The controller / processor 475 implements functionality of the L2 layer. In the transmission from the second communications device 410 to the first communications device 450, the controller / processor 475 provides header compression, ciphering, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation for the first communications device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets, and signaling to the first communications device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the LI layer (i.e., physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communications device 410, and mapping of coded and interleaved data onto various signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding of the coded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. The transmit processor 416 then maps to each spatial stream to a subcarrier, multiplexes with reference signals (e.g., pilots) in the time and / or frequency domain, and then performs an inverse fast Fourier transform (IFFT) to generate a time-domain multicarrier symbol stream for the physical channel. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides the radio frequency stream to the different antennas 420.

[0225] In transmissions from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its respective antenna 452. Each receiver 454 recovers information modulated onto an RF carrier and provides the recovered information at baseband as a stream of symbols to a receive processor 456. The receive processor 456 and a multiple access receiver processor 458 implement various signal processing functions of the Ll layer. The multiple access receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multiple access symbol streams from the receivers 454. The receive processor 456 converts the baseband multiple access symbol streams from the time-domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals are demultiplexed from the received symbol streams by the receive processor 456, with the reference signals to be used for channel estimation and the data signals to be recovered after multiple access detection in the multiple access receiver processor 458 for any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered by the receive processor 456 and used to generate soft decisions. The receive processor 456 then decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to a controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 can be associated with a memory 460 that stores program codes and data. The memory 460 can be referred to as a computer-readable medium. In transmissions from the second communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals can also be provided to the L3 for L3 processing.

[0226] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper layer data packets to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, ciphering, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocations, implements L2 layer functionality for the user plane and control plane. The controller / processor 459 is also responsible for error detection, retransmission of lost packets, and signaling to the second communication device 410. A transmit processor 468 performs modulation mapping, channel coding processing, and a multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, and then the transmit processor 468 modulates the resulting spatial streams into multi-carrier / single-carrier symbol streams, which are then provided to different antennas 452 via transmitters 454 after analog precoding / beamforming operations in the multi-antenna transmit processor 457. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency signal, and then provides the radio frequency signal to the antenna 452.

[0227] In the transmission from the first communication device 450 to the second communication device 410, the functions at the second communication device 410 are similar to the receive functions at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its respective antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement the functionality of the L1 layer. A controller / processor 475 implements the functionality of the L2 layer. The controller / processor 475 can be associated with a memory 476 that stores program codes and data. The memory 476 can be referred to as a computer readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the UE 450. Upper layer data packets from the controller / processor 475 can be provided to a core network.

[0228] As one embodiment, the first communication device 450 comprises: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the first communication device 450 at least to: first receive first signaling, the first signaling being used to indicate a first reference signal resource; then operate a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal; the first signaling being used to indicate the first set of time-frequency resources; the first reference signal resource being one of K1 candidate reference signal resources, K1 being a positive integer larger than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprising the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer larger than 1; a time domain resource occupied by the first set of time-frequency resources being used to determine the target set of reference signal resources from the M1 sets of reference signal resources; the operation being reception or the operation being transmission.

[0229] As one embodiment, the first communication device 450 comprises: a memory storing a program of computer readable instructions to produce actions when executed by at least one processor, the actions comprising: first receiving first signaling, the first signaling being used to indicate a first reference signal resource; then operating a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal; the first signaling being used to indicate the first set of time-frequency resources; the first reference signal resource being one of K1 candidate reference signal resources, K1 being a positive integer larger than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprising the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer larger than 1; a time domain resource occupied by the first set of time-frequency resources being used to determine the target set of reference signal resources from the M1 sets of reference signal resources; the operation being reception or the operation being transmission.

[0230] As one embodiment, the second communication device 410 apparatus comprises: at least one processor and at least one memory including a computer program code; the at least one memory and the computer program code are configured to, with the at least one processor, cause the second communication device 410 apparatus at least: to first transmit first signaling, the first signaling being used to indicate a first reference signal resource; to then perform a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal; the first signaling being used to indicate the first set of time-frequency resources; the first reference signal resource being one of K1 candidate reference signal resources, K1 being a positive integer greater than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprising the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer greater than 1; a time domain resource occupied by the first set of time-frequency resources being used to determine the target set of reference signal resources from the M1 sets of reference signal resources; the performing being transmitting, or the performing being receiving.

[0231] As one embodiment, the second communication device 410 apparatus comprises: a memory storing a program of computer readable instructions to produce actions when executed by at least one processor, the actions comprising: to first transmit first signaling, the first signaling being used to indicate a first reference signal resource; to then perform a first signal in a first set of time-frequency resources, the first reference signal resource being used to determine a spatial parameter of the first signal; the first signaling being used to indicate the first set of time-frequency resources; the first reference signal resource being one of K1 candidate reference signal resources, K1 being a positive integer greater than 1, the first signaling indicating the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources comprising the K1 candidate reference signal resources, the target set of reference signal resources being one of M1 sets of reference signal resources, M1 being a positive integer greater than 1; a time domain resource occupied by the first set of time-frequency resources being used to determine the target set of reference signal resources from the M1 sets of reference signal resources; the performing being transmitting, or the performing being receiving.

[0232] As one embodiment, the first communication device 450 corresponds to a first node in the present application.

[0233] As one embodiment, the second communication device 410 corresponds to a second node in the present application.

[0234] As one embodiment, the first communication device 450 is a UE.

[0235] As one embodiment, the first communication device 450 is a terminal.

[0236] As one embodiment, the second communication device 410 is a base station.

[0237] As one embodiment, the second communication device 410 is a UE.

[0238] As one embodiment, the second communication device 410 is a network device.

[0239] As one embodiment, the second communication device 410 is a serving cell.

[0240] As one embodiment, the second communication device 410 is a TRP.

[0241] As one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller / processor 459 are configured to receive first signaling, the first signaling being configured to indicate first reference signal resources; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller / processor 475 are configured to transmit first signaling, the first signaling being configured to indicate first reference signal resources.

[0242] As one embodiment, at least the first four of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller / processor 459 are configured to receive a first signal in a first set of time-frequency resources, the first reference signal resources being configured to determine spatial parameters of the first signal; at least the first four of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 416, and the controller / processor 475 are configured to transmit a first signal in a first set of time-frequency resources, the first reference signal resources being configured to determine spatial parameters of the first signal.

[0243] In one implementation, at least four of the following are used to transmit a first signal in a first time-frequency resource set: antenna 452, transmitter 454, multi-antenna transmit processor 457, transmit processor 468, and controller / processor 459; the first reference signal resource is used to determine the spatial parameters of the first signal. At least four of the following are used to receive a first signal in a first time-frequency resource set: antenna 420, receiver 418, multi-antenna receive processor 472, receive processor 470, and controller / processor 475; the first reference signal resource is used to determine the spatial parameters of the first signal.

[0244] As one embodiment, at least four of the following are used to receive the first information block: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, and controller / processor 459; at least four of the following are used to transmit the first information block: antenna 420, transmitter 418, multi-antenna transmitting processor 471, transmitting processor 416, and controller / processor 475.

[0245] As one embodiment, at least four of the following are used to receive the second information block: antenna 452, receiver 454, multi-antenna receiving processor 458, receiving processor 456, and controller / processor 459; at least four of the following are used to transmit the second information block: antenna 420, transmitter 418, multi-antenna transmitting processor 471, transmitting processor 416, and controller / processor 475.

[0246] Example 5

[0247] Example 5 illustrates a flowchart of a first signaling, as shown in the attached diagram. Figure 5 As shown. In the appendix Figure 5 In this embodiment, the first node U1 and the second node N2 communicate via a wireless link. It should be noted that the order in this embodiment does not limit the signal transmission order or the order of implementation in this application. Where there is no conflict, the embodiments, sub-embodiments, and supplementary embodiments in Embodiment 5 can be applied to Embodiment 6; conversely, where there is no conflict, the embodiments, sub-embodiments, and supplementary embodiments in Embodiment 6 can be applied to Embodiment 5.

[0248] for First node U1 In step S10, a second information block is received; in step S11, a first information block is received; in step S12, a first signaling is received; and in step S13, a first signal is received from the first time-frequency resource set.

[0249] for Second node N2The second information block is transmitted in step S20; the first information block is transmitted in step S21; the first signaling is transmitted in step S22; and the first signal is transmitted in the first set of time-frequency resources in step S23.

[0250] In embodiment 5, the first reference signal resource is used for determining a spatial parameter of the first signal; the first signaling is used for indicating the first set of time-frequency resources; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target set of reference signal resources includes the K1 candidate reference signal resources, the target set of reference signal resources is one of M1 sets of reference signal resources, M1 is a positive integer greater than 1; time domain resources occupied by the first set of time-frequency resources are used for determining the target set of reference signal resources from the M1 sets of reference signal resources; the first information block is used for indicating a format adopted by a symbol included in the time domain resources occupied by the first set of time-frequency resources; and the second information block is used for indicating the M1 sets of reference signal resources.

[0251] As an embodiment, the M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources, the time domain resources occupied by the first set of time-frequency resources include a first set of symbols; when a format adopted by a symbol in the first set of symbols is a first format, the target set of reference signal resources is the first set of reference signal resources; when the format adopted by the symbol in the first set of symbols is a second format, the target set of reference signal resources is the second set of reference signal resources; and the first format and the second format are different.

[0252] As a sub-embodiment of this embodiment, the first set of symbols includes only one symbol.

[0253] As a sub-embodiment of this embodiment, the first set of symbols includes a plurality of symbols.

[0254] As a sub-embodiment of this embodiment, the phrase "a symbol in the first set of symbols" means all symbols in the first set of symbols.

[0255] As a sub-embodiment of this embodiment, the phrase "a symbol in the first set of symbols" means any symbol in the first set of symbols.

[0256] As a sub-embodiment of this embodiment, the phrase "a symbol in the first set of symbols" means at least one symbol in the first set of symbols.

[0257] As one subembodiment of this embodiment, the first format is 'D' and the second format is 'F'.

[0258] As one subembodiment of this embodiment, the format employed by a symbol in the first set of symbols is configured by higher layer signaling.

[0259] As one subembodiment of this embodiment, the format employed by a symbol in the first set of symbols is indicated by a DCI.

[0260] As one subembodiment of this embodiment, the format employed by a symbol in the first set of symbols is indicated by a MAC CE.

[0261] As one embodiment, the M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources, the time domain resources occupied by the first set of time-frequency resources belong to a first time unit; when the first time unit is one time unit in a first set of time units, the target set of reference signal resources is the first set of reference signal resources; when the first time unit is one time unit in a second set of time units, the target set of reference signal resources is the second set of reference signal resources; the format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

[0262] As one subembodiment of this embodiment, the first time unit is one slot.

[0263] As one subembodiment of this embodiment, the first time unit is one mini-slot.

[0264] As one subembodiment of this embodiment, the first time unit is one sub-slot.

[0265] As one subembodiment of this embodiment, the first set of time units includes a positive integer greater than 1 time units.

[0266] As one subembodiment of this embodiment, the second set of time units includes a positive integer greater than 1 time units.

[0267] As one dependent embodiment of the above two subembodiments, the time unit is one slot.

[0268] As one dependent embodiment of the above two subembodiments, the time unit is one mini-slot.

[0269] As one dependent embodiment of the above two subembodiments, the time unit is one sub-slot.

[0270] As one sub-embodiment of the embodiment, the first set of time units and the second set of time units are configured by higher layer signaling.

[0271] As one sub-embodiment of the embodiment, the first set of time units and the second set of time units are indicated by DCI.

[0272] As one sub-embodiment of the embodiment, a format of a symbol included in any time unit in the first set of time units is downlink and a format of a symbol included in any time unit in the second set of time units is flexible; or the operation is transmitting, a format of a symbol included in any time unit in the first set of time units is uplink and a format of a symbol included in any time unit in the second set of time units is flexible.

[0273] As one embodiment, a format of any time unit in the first set of time units is “D” and a format of any time unit in the second set of time units is “F”.

[0274] As one embodiment, the first node receives wireless signals from the base station in time domain resources with format “D” in the present application and the time domain resources are not used by the first node for transmitting wireless signals to the base station.

[0275] As one embodiment, the first node transmits wireless signals to the base station in time domain resources with format “U” in the present application and the time domain resources are not used by the first node for receiving wireless signals transmitted from the base station.

[0276] As one embodiment, the first node receives wireless signals from the base station in time domain resources with format “F” in the present application and the time domain resources can be used by the first node for transmitting wireless signals to the base station.

[0277] As one embodiment, the format “D” in the present application means that the time domain resources corresponding to the format are used for downlink transmission.

[0278] As one embodiment, the format “U” in the present application means that the time domain resources corresponding to the format are used for uplink transmission.

[0279] As one embodiment, the format “F” in the present application means that the time domain resources corresponding to the format can be used for both downlink transmission and uplink transmission.

[0280] As one embodiment, the M1 sets of reference signal resources are all configured to a first frequency band, and the first frequency band includes frequency domain resources occupied by the first set of time-frequency resources.

[0281] As one embodiment, the reference time unit pool includes a first time unit set and a second time unit set; a format of each time unit in the reference time unit pool is used to determine the first time unit set and the second time unit set.

[0282] As one sub-embodiment of this embodiment, when a format of a time unit in the reference time unit pool is “D”, the time unit belongs to the first time unit set; when a format of a time unit in the reference time unit pool is “F”, the time unit belongs to the second time unit set.

[0283] As one sub-embodiment of this embodiment, when a format of a time unit in the reference time unit pool is “U”, the time unit belongs to the first time unit set; when a format of a time unit in the reference time unit pool is “F”, the time unit belongs to the second time unit set.

[0284] As one embodiment, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is a time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is a time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; the first time unit set and the second time unit set are orthogonal.

[0285] As one embodiment, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is a time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is a time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; the first time unit set corresponds to a first sub-band, the second time unit set corresponds to a second sub-band, the first sub-band and the second sub-band both belong to a same BWP (Bandwidth Part), and the first sub-band and the second sub-band are different.

[0286] As a sub-embodiment of the above-mentioned embodiment, the first node monitors a CORESET (Control Resource Set) on a first sub-band in the first set of time units, and monitors a CORESET on a second sub-band in the second set of time units.

[0287] As an embodiment, the first information block is transmitted by RRC signaling.

[0288] As an embodiment, the name of the RRC signaling used to transmit the first information block includes Slot.

[0289] As an embodiment, the name of the RRC signaling used to transmit the first information block includes SlotFormat.

[0290] As an embodiment, the name of the RRC signaling used to transmit the first information block includes Format.

[0291] As an embodiment, the first information block is transmitted by a MAC CE.

[0292] As an embodiment, the name of the MAC CE used to transmit the first information block includes Slot.

[0293] As an embodiment, the name of the MAC CE used to transmit the first information block includes SlotFormat.

[0294] As an embodiment, the name of the MAC CE used to transmit the first information block includes Format.

[0295] As an embodiment, the first information block is transmitted by a DCI.

[0296] As an embodiment, when the first information block is transmitted by a DCI, the format used by the DCI is DCIFormat 2_0.

[0297] As an embodiment, the above-mentioned phrase “the format of the symbol included in the time domain resource occupied by the first set of time-frequency resources” means the format of the symbol included in the time domain resource occupied by the slot in which the first set of time-frequency resources is located.

[0298] As an embodiment, the above-mentioned phrase “the format of the symbol included in the time domain resource occupied by the first set of time-frequency resources” means the format of all the symbols occupied by the first set of time-frequency resources.

[0299] As an embodiment, the format of the symbols included in the time domain resources occupied by the first set of time-frequency resources is one of “D”, “U”, or “F”.

[0300] As an embodiment, the second information block is transmitted through RRC signaling.

[0301] As an embodiment, the name of the RRC signaling used to transmit the second information block includes TCI.

[0302] As an embodiment, the name of the RRC signaling used to transmit the second information block includes State.

[0303] As an embodiment, the name of the RRC signaling used to transmit the second information block includes SRI.

[0304] As an embodiment, the name of the RRC signaling used to transmit the second information block includes Slot.

[0305] As an embodiment, the name of the RRC signaling used to transmit the second information block includes SlotFormat.

[0306] As an embodiment, the name of the RRC signaling used to transmit the second information block includes Format.

[0307] As an embodiment, the name of the RRC signaling used to transmit the second information block includes PDSCH.

[0308] As an embodiment, the name of the RRC signaling used to transmit the second information block includes PUSCH.

[0309] As an embodiment, the second information block is transmitted through a MAC CE.

[0310] As an embodiment, the name of the MAC CE used to transmit the second information block includes TCI.

[0311] As an embodiment, the name of the MAC CE used to transmit the second information block includes SRI.

[0312] As an embodiment, the name of the MAC CE used to transmit the second information block includes Slot.

[0313] As an embodiment, the name of the MAC CE used to transmit the second information block includes SlotFormat.

[0314] As an embodiment, the name of the MAC CE used to transmit the second information block includes Format.

[0315] As an embodiment, the M1 is equal to 2, and the M1 reference signal resource sets respectively correspond to the first reference signal resource set and the second reference signal resource set in the present application.

[0316] As an embodiment, the M1 is equal to 3, and the M1 reference signal resource sets respectively correspond to the first candidate reference signal resource set, the second candidate reference signal resource set and the third candidate reference signal resource set; when the format of the symbol occupied by the first time-frequency resource set is “D”, the target reference signal resource set is the first candidate reference signal resource set; when the format of the symbol occupied by the first time-frequency resource set is “U”, the target reference signal resource set is the second candidate reference signal resource set; when the format of the symbol occupied by the first time-frequency resource set is “F”, the target reference signal resource set is the third candidate reference signal resource set.

[0317] Example 6

[0318] Embodiment 6 illustrates another flowchart of the first signaling, as shown in FIG. 6. Figure 6 In FIG. 6, the first node U3 communicates with the second node N4 through a wireless link. It is particularly pointed out that the sequence in the embodiment does not limit the sequence of signal transmission and implementation in the present application. In the case of no conflict, the embodiments, sub-embodiments and dependent embodiments in embodiment 6 can be applied to embodiment 5; conversely, in the case of no conflict, the embodiments, sub-embodiments and dependent embodiments in embodiment 5 can be applied to embodiment 6. Figure 6 For the first node U3, in step S30, the second information block is received; in step S31, the first information block is received; in step S32, the first signaling is received; and in step S33, the first signal is sent in the first time-frequency resource set.

[0319] First node U3 For the first node U3, in step S30, the second information block is received; in step S31, the first information block is received; in step S32, the first signaling is received; and in step S33, the first signal is sent in the first time-frequency resource set.

[0320] For the first node U3, in step S40, the second information block is sent; in step S41, the first information block is sent; in step S42, the first signaling is sent; and in step S43, the first signal is received in the first time-frequency resource set. Second node N4

[0321] ​​In Example 6, the first reference signal resource is used to determine the spatial parameters of the first signal; the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, where K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; the target reference signal resource set includes the K1 candidate reference signal resources, and the target reference signal resource set is one of M1 reference signal resource sets, where M1 is a positive integer greater than 1; the time-domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets; the first information block is used to indicate the format adopted by the symbols included in the time-domain resources occupied by the first time-frequency resource set; and the second information block is used to indicate the M1 reference signal resource sets.

[0322] As an example, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set. The time-domain resources occupied by the first time-frequency resource set include a first symbol set. When the symbols in the first symbol set adopt a first format, the target reference signal resource set is the first reference signal resource set. When the symbols in the first symbol set adopt a second format, the target reference signal resource set is the second reference signal resource set. The first format and the second format are different.

[0323] As a sub-implementation of this embodiment, the first format is "U" and the second format is "F".

[0324] As an example, the M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources. The time-domain resources occupied by the first time-frequency resource set belong to a first time unit. When the first time unit is a time unit in the first set of time units, the target reference signal resource set is the first set of reference signal resources. When the first time unit is a time unit in the second set of time units, the target reference signal resource set is the second set of reference signal resources. The format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

[0325] As a sub-implementation of this embodiment, the format of any time unit in the first time unit set is "U", and the format of any time unit in the second time unit set is "F".

[0326] As an embodiment, the format of the symbol comprising the time domain resource occupied by the first set of time-frequency resources is one of "D", "U" or "F".

[0327] As an embodiment, the M1 is equal to 3, the M1 sets of reference signal resources respectively correspond to a first candidate set of reference signal resources, a second candidate set of reference signal resources and a third candidate set of reference signal resources; when the format of the symbol occupied by the first set of time-frequency resources is "D", the target set of reference signal resources is the first candidate set of reference signal resources; when the format of the symbol occupied by the first set of time-frequency resources is "U", the target set of reference signal resources is the second candidate set of reference signal resources; when the format of the symbol occupied by the first set of time-frequency resources is "F", the target set of reference signal resources is the third candidate set of reference signal resources.

[0328] As an embodiment, the transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold value, the first threshold value is one of M2 candidate threshold values, the time domain resource occupied by the first set of time-frequency resources is used to determine the first threshold value from the M2 candidate threshold values; the M2 is a positive integer greater than 1.

[0329] As a sub-embodiment of the embodiment, the M2 is equal to the M1.

[0330] As a sub-embodiment of the embodiment, the unit of the first power value is dBm (milli decibel).

[0331] As a sub-embodiment of the embodiment, the unit of the first power value is milliwatt.

[0332] As a sub-embodiment of the embodiment, the unit of the first threshold value is dBm.

[0333] As a sub-embodiment of the embodiment, the unit of the first threshold value is milliwatt.

[0334] As a sub-embodiment of the embodiment, the first threshold value is P CMAX,f,c .

[0335] As a sub-embodiment of the embodiment, the first threshold value is used to determine P CMAX,f,c .

[0336] As a sub-embodiment of the embodiment, the first threshold value is P CMAX_H,f,c .

[0337] As one subembodiment of the embodiment, the M2 is equal to 2, the M2 candidate threshold values are a first candidate threshold value and a second candidate threshold value respectively; when the target reference signal resource set is the first reference signal resource set, the first threshold value is the first candidate threshold value; when the target reference signal resource set is the second reference signal resource set, the first threshold value is the second candidate threshold value.

[0338] As one subembodiment of the embodiment, the M2 is equal to 3, the M2 candidate threshold values are a first candidate threshold value, a second candidate threshold value and a third candidate threshold value respectively; when the format of the symbol occupied by the first time-frequency resource set is “D”, the first threshold value is the first candidate threshold value; when the format of the symbol occupied by the first time-frequency resource set is “U”, the first threshold value is the second candidate threshold value; when the format of the symbol occupied by the first time-frequency resource set is “F”, the first threshold value is the third candidate threshold value.

[0339] As one embodiment, the transmission power of the first signal is equal to a first power value, the first power value is linearly related to a target power value, the target power value is equal to one of M3 candidate power values, a time domain resource occupied by the first time-frequency resource set is used to determine the target power value from the M3 candidate power values, the M3 is a positive integer greater than 1.

[0340] As one subembodiment of the embodiment, the M3 is equal to the M1.

[0341] As one subembodiment of the embodiment, the unit of the target power value is dBm.

[0342] As one subembodiment of the embodiment, the unit of the target power value is milliwatt.

[0343] As one subembodiment of the embodiment, the unit of the target power value is dB.

[0344] As one subembodiment of the embodiment, the M3 is equal to 2, the M3 candidate power values are a first candidate power value and a second candidate power value respectively; when the target reference signal resource set is the first reference signal resource set, the target power value is the first candidate power value; when the target reference signal resource set is the second reference signal resource set, the target power value is the second candidate power value.

[0345] As a sub-implementation of this embodiment, M3 equals 3, and the M3 candidate power values ​​are respectively the first candidate power value, the second candidate power value, and the third candidate power value; when the symbol format occupied by the first time-frequency resource set is "D", the target power value is the first candidate power value; when the symbol format occupied by the first time-frequency resource set is "U", the target power value is the second candidate power value; when the symbol format occupied by the first time-frequency resource set is "F", the target power value is the third candidate power value.

[0346] As a sub-example of this embodiment, the target power value is P O_PUSCH,b,f,c (j).

[0347] As a sub-example of this embodiment, the target power value is Δ TF,b,f,c (i).

[0348] As a sub-example of this embodiment, the target power value is f b,f,c (i,l).

[0349] As a sub-example of this embodiment, the target power value is α. b,f,c (j)·PL b,f,c (q d ),α b,f,c The value of (j) is related to the time-domain resources occupied by the first time-frequency resource set, PL b,f,c (q d ) is the path loss between the first node and the second node.

[0350] As a supplementary embodiment of this sub-example, when the format of the symbols occupied by the first time-frequency resource set is "D", the α b,f,c The value of (j) is equal to the first coefficient; when the symbol format occupied by the first time-frequency resource set is "U", the α b,f,c The value of (j) is equal to the second coefficient; when the format of the symbols occupied by the first time-frequency resource set is "F", the α b,f,c The value of (j) is equal to the third coefficient; the first, second and third coefficients are all different and are all positive real numbers less than 1.

[0351] As a supplementary embodiment of this sub-example, when the target reference signal resource set is the first reference signal resource set, the α b,f,c The value of (j) is equal to the first coefficient; when the target reference signal resource set is the second reference signal resource set, the α b,f,c The value of (j) is equal to the second coefficient; the first coefficient and the second coefficient are different and are both positive real numbers less than 1.

[0352] Example 7

[0353] Example 7 illustrates a schematic diagram of a set of M1 reference signal resources, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 In the figure, the M1 sets of reference signal resources include reference signal resource sets #1 to #M1; reference signal resource set #1 includes reference signal resource #1_1 to reference signal resource #1_N1, where N1 is a positive integer greater than 1; reference signal resource set #M1 includes reference signal resource #M1_1 to reference signal resource #M1_N. M1 N M1 It is a positive integer greater than 1.

[0354] As an example, when the first node receives the first signal, the reference signal resources included in any of the M1 reference signal resource sets correspond to a TCI-State.

[0355] As an example, when the first node receives the first signal, the reference signal resources included in any of the M1 reference signal resource sets correspond to a received beamforming vector.

[0356] As an example, when the first node sends the first signal, the reference signal resources included in any of the M1 reference signal resource sets correspond to one SRI.

[0357] As an example, when the first node transmits the first signal, the reference signal resources included in any of the M1 reference signal resource sets correspond to a transmission beamforming vector.

[0358] Example 8

[0359] Example 8 illustrates a schematic diagram of the time-domain resources occupied by a first time-frequency resource set, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 In the diagram, the rectangles filled with diagonal lines represent time-domain resources configured in the first format; the rectangles filled with rhombuses represent time-domain resources configured in the second format; when the time-domain resources occupied by the first time-frequency resource set belong to the time-domain resources configured in the first format, the target reference signal resource set is the first reference signal resource set; when the time-domain resources occupied by the first time-frequency resource set belong to the time-domain resources configured in the second format, the target reference signal resource set is the second reference signal resource set.

[0360] As one embodiment, when the first node receives the first signal, the first format is "D" and the second format is "F".

[0361] As one embodiment, when the first node receives the first signal, the first format is "D" and the second format is "F".

[0362] As one embodiment, the rectangular grid shown in the figure represents a symbol.

[0363] As one embodiment, the rectangular grid shown in the figure represents a time slot.

[0364] Example 9

[0365] Embodiment 9 illustrates a schematic diagram of an application scenario of the present application, as shown in the accompanying Figure 9 Embodiment 9 illustrates a schematic diagram of an application scenario of the present application, as shown in the accompanying Figure 9 In the accompanying

[0366] As one embodiment, when the first time-frequency resource set in the present application belongs to the first time-frequency resource block, i.e. the first node is scheduled in the first time-frequency resource block, and the second node schedules the first terminal to receive downlink data in the third time-frequency resource block, then the first node and the first terminal will not interfere with each other because they are receiving at the same time; and then the selection of the target reference signal resource set does not need to consider the interference between each other, and then the target reference signal resource set is the first reference signal resource set.

[0367] As an example, when the first time-frequency resource set in this application belongs to the second time-frequency resource block, that is, the first node is scheduled in the second time-frequency resource block, and the second node schedules the first terminal to send uplink data in the fourth time-frequency resource block, then the first node and the first terminal are receiving and transmitting respectively, and the transmission of the first terminal will interfere with the reception of the first node; then the selection of the target reference signal resource set avoids the uplink beamforming vector of the first terminal, and the target reference signal resource set is the second reference signal resource set.

[0368] As an example, both the first frequency domain interval and the second frequency domain interval are BWPs.

[0369] As an example, both the first frequency domain interval and the second frequency domain interval are a sub-band.

[0370] As an example, both the first frequency domain interval and the second frequency domain interval occupy frequency domain resources corresponding to a positive integer number of consecutive RBs.

[0371] Example 10

[0372] Example 10 illustrates another application scenario of this application, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In this application, the fifth and sixth time-frequency resource blocks both belong to the third frequency domain interval in the frequency domain, and the seventh and eighth time-frequency resource blocks both belong to the fourth frequency domain interval in the frequency domain. The third and fourth frequency domain intervals are adjacent. The fifth and seventh time-frequency resource blocks overlap in the time domain, and the sixth and eighth time-frequency resource blocks also overlap in the time domain. The second node in this application schedules the first node in the third frequency domain interval and schedules a terminal other than the first node, such as a second terminal, in the fourth frequency domain interval. The time domain resources occupied by the fifth and seventh time-frequency resource blocks are in the format of "U", and the time domain resources occupied by the sixth and eighth time-frequency resource blocks are in the format of "F".

[0373] As an example, when the first time-frequency resource set in this application belongs to the fifth time-frequency resource block, that is, the first node is scheduled in the fifth time-frequency resource block, and the second node schedules the first terminal to send uplink data in the seventh time-frequency resource block, the first node and the first terminal will not interfere with each other because they are sending data at the same time; therefore, the selection of the target reference signal resource set does not need to consider the interference between them, and the target reference signal resource set is the first reference signal resource set.

[0374] As an embodiment, when the first time-frequency resource set in the present application belongs to the sixth time-frequency resource block, i.e., the first node is scheduled in the sixth time-frequency resource block, and the second node schedules the first terminal to receive downlink data in the eighth time-frequency resource block, then the receiving of the second terminal will be interfered by the sending of the first node because the first node and the second terminal are respectively sending and receiving; and the selection of the target reference signal resource set avoids the downlink beamforming vector of the second terminal, and then the target reference signal resource set is the second reference signal resource set.

[0375] As an embodiment, the third frequency domain interval and the fourth frequency domain interval are both a BWP.

[0376] As an embodiment, the third frequency domain interval and the fourth frequency domain interval are both a sub-band.

[0377] As an embodiment, the third frequency domain interval and the fourth frequency domain interval are both frequency domain resources corresponding to an integer number of continuous RBs.

[0378] Example 11

[0379] Embodiment 11 illustrates a structural block diagram in a first node, as shown in FIG. 11. Figure 11 In the embodiment, the first node 1100 includes a first receiver 1101 and a first transceiver 1102. Figure 11 In the embodiment, the first node 1100 includes a first receiver 1101 and a first transceiver 1102.

[0380] The first receiver 1101 receives first signaling, and the first signaling is used to indicate a first reference signal resource;

[0381] The first transceiver 1102 receives a first signal in a first time-frequency resource set or sends the first signal in the first time-frequency resource set; the first reference signal resource is used to determine a spatial parameter of the first signal;

[0382] In embodiment 11, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; the time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0383] As an embodiment, the M1 reference signal resource sets comprise a first reference signal resource set and a second reference signal resource set, the time domain resources occupied by the first time-frequency resource set comprise a first symbol set; when a format adopted by a symbol in the first symbol set is a first format, the target reference signal resource set is the first reference signal resource set; when the format adopted by the symbol in the first symbol set is a second format, the target reference signal resource set is the second reference signal resource set; the first format and the second format are different.

[0384] As an embodiment, the M1 reference signal resource sets comprise a first reference signal resource set and a second reference signal resource set, the time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is a time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is a time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; a format of any time unit in the first time unit set is different from a format of any time unit in the second time unit set.

[0385] As an embodiment, the first receiver 1101 receives a first information block; the first information block is used to indicate a format adopted by a symbol comprised in the time domain resources occupied by the first time-frequency resource set.

[0386] As an embodiment, the first receiver 1101 receives a second information block; the second information block is used to indicate the M1 reference signal resource sets.

[0387] As an embodiment, the transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold value, the first threshold value is one of M2 candidate threshold values, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold value from the M2 candidate threshold values; the M2 is a positive integer greater than 1.

[0388] As an embodiment, the transmission power of the first signal is equal to a first power value, the first power value is linearly related to a target power value, the target power value is equal to one of M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, and the M3 is a positive integer greater than 1.

[0389] As one embodiment, the first receiver 1101 includes at least the first four of the antenna 452, the receiver 454, the multi-antenna reception processor 458, the reception processor 456, and the controller / processor 459 in Embodiment 4.

[0390] As one embodiment, the first transceiver 1102 includes at least the first six of the antenna 452, the receiver / transmitter 454, the multi-antenna reception processor 458, the multi-antenna transmission processor 457, the reception processor 456, the transmission processor 468, and the controller / processor 459 in Embodiment 4.

[0391] As one embodiment, the first signaling is PDCCH, the first signal is PDSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0392] As one embodiment, the first signaling is PDCCH, the first signal is PDSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine a transmission power value of the first signal.

[0393] As one embodiment, the first signaling is PDCCH, the first signal is PUSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0394] As one embodiment, the first signaling is PDCCH, the first signal is PUSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine a transmission power value of the first signal.

[0395] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of all symbols included in the time domain resource occupied by the first time-frequency resource set.

[0396] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of any symbol included in the time domain resource occupied by the first time-frequency resource set.

[0397] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of at least one symbol included in the time domain resource occupied by the first time-frequency resource set.

[0398] As a subembodiment of the above four embodiments, all symbols included in the occupied time domain resource have the same format.

[0399] Example 12

[0400] Embodiment 12 illustrates a structural block diagram in a second node, as shown in FIG. 12. Figure 12 In FIG. 12, the second node 1200 includes a first transmitter 1201 and a second transceiver 1202. Figure 12

[0401] The first transmitter 1201 transmits first signaling, which is used to indicate a first reference signal resource;

[0402] The second transceiver 1202 transmits or receives a first signal in a first time-frequency resource set; the first reference signal resource is used to determine a spatial parameter of the first signal.

[0403] In Embodiment 12, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, K1 is a positive integer greater than 1, the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; a target reference signal resource set includes the K1 candidate reference signal resources, the target reference signal resource set is one of M1 reference signal resource sets, M1 is a positive integer greater than 1; the time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0404] As an embodiment, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, the time domain resource occupied by the first time-frequency resource set includes a first symbol set; when the format of a symbol in the first symbol set is a first format, the target reference signal resource set is the first reference signal resource set; when the format of a symbol in the first symbol set is a second format, the target reference signal resource set is the second reference signal resource set; the first format and the second format are different.

[0405] ​As an embodiment, the M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set, time domain resources occupied by the first time-frequency resource set belong to a first time unit; when the first time unit is a time unit in a first time unit set, the target reference signal resource set is the first reference signal resource set; when the first time unit is a time unit in a second time unit set, the target reference signal resource set is the second reference signal resource set; a format of any time unit in the first time unit set is different from a format of any time unit in the second time unit set.

[0406] As an embodiment, the first transmitter 1201 transmits a first information block; the first information block is used to indicate a format adopted by a symbol included in the time domain resources occupied by the first time-frequency resource set.

[0407] As an embodiment, the first transmitter 1201 transmits a second information block; the second information block is used to indicate the M1 reference signal resource sets.

[0408] As an embodiment, a transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold value, the first threshold value is one of M2 candidate threshold values, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold value from the M2 candidate threshold values; the M2 is a positive integer greater than 1.

[0409] As an embodiment, a transmission power of the first signal is equal to a first power value, the first power value is linearly related to a target power value, the target power value is equal to one of M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, and the M3 is a positive integer greater than 1.

[0410] As an embodiment, the first transmitter 1201 includes at least the first 4 of the antenna 420, the transmitter 418, the multi-antenna transmission processor 471, the transmission processor 414, and the controller / processor 475 in embodiment 4.

[0411] As an embodiment, the second transceiver 1202 includes at least the first 6 of the antenna 420, the transmitter / receiver 418, the multi-antenna transmission processor 471, the multi-antenna reception processor 472, the transmission processor 416, the reception processor 470, and the controller / processor 475 in embodiment 4.

[0412] As one embodiment, the first signaling is PDCCH, the first signal is PDSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0413] As one embodiment, the first signaling is PDCCH, the first signal is PDSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine a transmission power value of the first signal.

[0414] As one embodiment, the first signaling is PDCCH, the first signal is PUSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine the target reference signal resource set from the M1 reference signal resource sets.

[0415] As one embodiment, the first signaling is PDCCH, the first signal is PUSCH, and a format of a symbol included in a time domain resource occupied by the first time-frequency resource set is used to determine a transmission power value of the first signal.

[0416] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of all symbols included in the time domain resource occupied by the first time-frequency resource set.

[0417] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of any symbol included in the time domain resource occupied by the first time-frequency resource set.

[0418] As one sub-embodiment of the above four embodiments, the phrase "a format of a symbol included in a time domain resource occupied by the first time-frequency resource set" means a format of at least one symbol included in the time domain resource occupied by the first time-frequency resource set.

[0419] As one sub-embodiment of the above four embodiments, formats of all symbols included in the time domain resource occupied by the first time-frequency resource set are the same.

[0420] Those skilled in the art can understand that all or part of the steps in the foregoing method can be instructed by programs to the relevant hardware to complete, and the programs can be stored in a computer readable storage medium, such as a read-only memory, a hard disk, an optical disk or the like. Alternatively, all or part of the steps of the foregoing embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the foregoing embodiments can be implemented in the form of hardware or in the form of a software function module, and the present application is not limited to any specific form of combination of software and hardware. The first node in the present application includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a network card, a low-power device, an eMTC device, an NB-IoT device, a vehicle-mounted communication device, a vehicle, a vehicle, an RSU, an aircraft, a plane, a drone, a remote control aircraft and the like wireless communication device. The second node in the present application includes but is not limited to a macro cellular base station, a micro cellular base station, a small cellular base station, a home base station, a relay base station, an eNB, a gNB, a transmission and reception node TRP, a GNSS, a relay satellite, a satellite base station, an air base station, an RSU, a drone, a test device, such as a transceiver or a signaling tester that simulates part of the function of a base station, and the like wireless communication device.

[0421] Those skilled in the art will understand that the application can be implemented by other specified forms without departing from the core or essential characteristics thereof. Therefore, the presently disclosed embodiments should in no way be considered as descriptive rather than limiting. The scope of the application is determined by the appended claims rather than the preceding description, and all modifications within the equivalent meaning and range of the claims are considered to be included therein.

Claims

1. A first node for wireless communication, characterized in that... include: A first receiver receives a first signaling instruction, which is used to indicate a first reference signal resource. A first transceiver operates a first signal in a first time-frequency resource set, wherein the first reference signal resource is used to determine the spatial parameters of the first signal. Wherein, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, where K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; The target reference signal resource set includes the K1 candidate reference signal resources, and the target reference signal resource set is one of M1 reference signal resource sets, where M1 is a positive integer greater than 1; the time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets; the operation is receiving, or the operation is transmitting; The M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set. The time-domain resources occupied by the first time-frequency resource set include a first symbol set. When the symbols in the first symbol set adopt a first format, the target reference signal resource set is the first reference signal resource set. When the symbols in the first symbol set adopt a second format, the target reference signal resource set is the second reference signal resource set. The first format and the second format are different.

2. The first node according to claim 1, characterized in that, The M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources. The time-domain resources occupied by the first time-frequency resource set belong to a first time unit. When the first time unit is a time unit in the first set of time units, the target reference signal resource set is the first set of reference signal resources. When the first time unit is a time unit in the second set of time units, the target reference signal resource set is the second set of reference signal resources. The format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

3. The first node according to claim 1 or 2, characterized in that, The first receiver receives a first information block; the first information block is used to indicate the format of the symbols included in the time-domain resources occupied by the first time-frequency resource set.

4. The first node according to claim 1 or 2, characterized in that, The first receiver receives a second information block; the second information block is used to indicate the M1 sets of reference signal resources.

5. The first node according to claim 1 or 2, characterized in that, The transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold, the first threshold is one of M2 candidate thresholds, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold from the M2 candidate thresholds; M2 is a positive integer greater than 1.

6. The first node according to claim 1 or 2, characterized in that, The transmission power of the first signal is equal to the first power value, the first power value is linearly related to the target power value, the target power value is equal to one of the M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values; M3 is a positive integer greater than 1.

7. A second node for use in wireless communication, characterized in that... include: A first transmitter sends a first signaling message, which is used to indicate a first reference signal resource; The second transceiver executes the first signal in the first time-frequency resource set, wherein the first reference signal resource is used to determine the spatial parameters of the first signal. Wherein, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, where K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; The target reference signal resource set includes the K1 candidate reference signal resources, and the target reference signal resource set is one of M1 reference signal resource sets, where M1 is a positive integer greater than 1; the time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets; the execution is either transmission or reception. The M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set. The time-domain resources occupied by the first time-frequency resource set include a first symbol set. When the symbols in the first symbol set adopt a first format, the target reference signal resource set is the first reference signal resource set. When the symbols in the first symbol set adopt a second format, the target reference signal resource set is the second reference signal resource set. The first format and the second format are different.

8. The second node according to claim 7, characterized in that, The M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources. The time-domain resources occupied by the first time-frequency resource set belong to a first time unit. When the first time unit is a time unit in the first set of time units, the target reference signal resource set is the first set of reference signal resources. When the first time unit is a time unit in the second set of time units, the target reference signal resource set is the second set of reference signal resources. The format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

9. The second node according to claim 7 or 8, characterized in that, The first transmitter sends a first information block; the first information block is used to indicate the format of the symbols included in the time-domain resources occupied by the first time-frequency resource set.

10. The second node according to claim 7 or 8, characterized in that, The first transmitter sends a second information block; the second information block is used to indicate the M1 sets of reference signal resources.

11. The second node according to claim 7 or 8, characterized in that, The transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold, the first threshold is one of M2 candidate thresholds, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold from the M2 candidate thresholds; M2 is a positive integer greater than 1.

12. The second node according to claim 7 or 8, characterized in that, The transmission power of the first signal is equal to the first power value, the first power value is linearly related to the target power value, the target power value is equal to one of M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, where M3 is a positive integer greater than 1.

13. A method for a first node in wireless communication, characterized in that... include: Receive a first signaling message, which is used to indicate a first reference signal resource; The first signal is operated in a first time-frequency resource set, and the first reference signal resource is used to determine the spatial parameters of the first signal; Wherein, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, where K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; The target reference signal resource set includes the K1 candidate reference signal resources, and the target reference signal resource set is one of M1 reference signal resource sets, where M1 is a positive integer greater than 1; the time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets; the operation is receiving, or the operation is transmitting; The M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set. The time-domain resources occupied by the first time-frequency resource set include a first symbol set. When the symbols in the first symbol set adopt a first format, the target reference signal resource set is the first reference signal resource set. When the symbols in the first symbol set adopt a second format, the target reference signal resource set is the second reference signal resource set. The first format and the second format are different.

14. The method in the first node according to claim 13, characterized in that, The M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources. The time-domain resources occupied by the first time-frequency resource set belong to a first time unit. When the first time unit is a time unit in the first set of time units, the target reference signal resource set is the first set of reference signal resources. When the first time unit is a time unit in the second set of time units, the target reference signal resource set is the second set of reference signal resources. The format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

15. The method in the first node according to claim 13 or 14, characterized in that, include: Receive the first information block; The first information block is used to indicate the format of the symbols included in the time-domain resources occupied by the first time-frequency resource set.

16. The method in the first node according to claim 13 or 14, characterized in that, include: Receive the second information block; The second information block is used to indicate the M1 sets of reference signal resources.

17. The method in the first node according to claim 13 or 14, characterized in that, The transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold, the first threshold is one of M2 candidate thresholds, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold from the M2 candidate thresholds; M2 is a positive integer greater than 1.

18. The method in the first node according to claim 13 or 14, characterized in that, The transmission power of the first signal is equal to the first power value, the first power value is linearly related to the target power value, the target power value is equal to one of M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, where M3 is a positive integer greater than 1.

19. A method for a second node in wireless communication, characterized in that... include: Send a first signaling message, which is used to indicate a first reference signaling resource; The first signal is executed in the first time-frequency resource set, and the first reference signal resource is used to determine the spatial parameters of the first signal. Wherein, the first signaling is used to indicate the first time-frequency resource set; the first reference signal resource is one of K1 candidate reference signal resources, where K1 is a positive integer greater than 1, and the first signaling indicates the first reference signal resource from the K1 candidate reference signal resources; The target reference signal resource set includes the K1 candidate reference signal resources, and the target reference signal resource set is one of M1 reference signal resource sets, where M1 is a positive integer greater than 1; the time domain resources occupied by the first time-frequency resource set are used to determine the target reference signal resource set from the M1 reference signal resource sets; the execution is either transmission or reception. The M1 reference signal resource sets include a first reference signal resource set and a second reference signal resource set. The time-domain resources occupied by the first time-frequency resource set include a first symbol set. When the symbols in the first symbol set adopt a first format, the target reference signal resource set is the first reference signal resource set. When the symbols in the first symbol set adopt a second format, the target reference signal resource set is the second reference signal resource set. The first format and the second format are different.

20. The method in the second node according to claim 19, characterized in that, The M1 sets of reference signal resources include a first set of reference signal resources and a second set of reference signal resources. The time-domain resources occupied by the first time-frequency resource set belong to a first time unit. When the first time unit is a time unit in the first set of time units, the target reference signal resource set is the first set of reference signal resources. When the first time unit is a time unit in the second set of time units, the target reference signal resource set is the second set of reference signal resources. The format of any time unit in the first set of time units is different from the format of any time unit in the second set of time units.

21. The method in the second node according to claim 19 or 20, characterized in that, include: Send the first information block; The first information block is used to indicate the format of the symbols included in the time-domain resources occupied by the first time-frequency resource set.

22. The method in the second node according to claim 19 or 20, characterized in that, include: Receive the second information block; The second information block is used to indicate the M1 sets of reference signal resources.

23. The method in the second node according to claim 19 or 20, characterized in that, The transmission power of the first signal is equal to a first power value, the first power value is not greater than a first threshold, the first threshold is one of M2 candidate thresholds, and the time domain resources occupied by the first time-frequency resource set are used to determine the first threshold from the M2 candidate thresholds; M2 is a positive integer greater than 1.

24. The method in the second node according to claim 19 or 20, characterized in that, The transmission power of the first signal is equal to the first power value, the first power value is linearly related to the target power value, the target power value is equal to one of M3 candidate power values, and the time domain resources occupied by the first time-frequency resource set are used to determine the target power value from the M3 candidate power values, where M3 is a positive integer greater than 1.

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