A method and device used in a node for wireless communication

Abstract

The present application discloses a method and apparatus in a node used for wireless communication. A first node receives a first signal in a first resource pool; receives a first signal. The first signal indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signal does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signal to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship. The above method solves the beam association problem between the data channel and the control channel when the physical layer control channel adopts multi-TRP / panel transmission.

Description

[0001] This application is a divisional application of the following original application:

[0002] -- Filing date of original application: April 15, 2020

[0003] --Application number of the original application: 202010293567.8

[0004] --Title of the invention of the original application: A method and device used in a node for wireless communication Technical Field

[0005] The present application relates to a transmission method and device in a wireless communication system, and in particular to a transmission method and device for wireless signals in a wireless communication system supporting a cellular network. Background Art

[0006] Multi-antenna technology is a key technology in 3GPP (3rd Generation Partner Project) LTE (Long-term Evolution) system and NR (New Radio) system. Additional spatial degrees of freedom are obtained by configuring multiple antennas at communication nodes, such as base stations or UE (User Equipment). Multiple antennas form beams pointing in a specific direction through beamforming to improve communication quality. When multiple antennas belong to multiple TRPs (Transmitter Receiver Points) / panels, additional diversity gain can be obtained by utilizing the spatial differences between different TRPs / panels. The beams formed by multi-antenna beamforming are generally narrow, and the beams of the communicating parties need to be aligned for effective communication. When the transmit / receive beams are out of sync due to reasons such as UE movement, the communication quality will be greatly reduced or even unable to communicate. In NR R (release) 15 and R16, the beam of the data channel can be indicated by scheduling signaling or associated with the beam of the default CORESET (COntrol REsource SET). Summary of the invention

[0007] In NR R17 and its subsequent versions, the transmission scheme based on multiple TRP / panel will continue to evolve and be enhanced, and one important aspect is to enhance the transmission quality of the physical layer control channel. On the basis of the enhanced physical layer control channel, how the beams between the data channel and the control channel will be associated is a problem that needs to be solved. In response to the above problems, the present application discloses a solution. It should be noted that although the above description uses a multiple TRP / panel transmission scenario as an example, the present application is also applicable to other scenarios such as single TRP / panel transmission, carrier aggregation, or Internet of Things (V2X) communication scenarios, and achieves similar technical effects in multiple TRP / panel transmission scenarios. In addition, the use of a unified solution for different scenarios (including but not limited to multiple TRP / panel transmission, single TRP / panel transmission, carrier aggregation and Internet of Things) also helps to reduce hardware complexity and cost. In the absence of conflict, the embodiments in the first node of the present application and the features in the embodiments can be applied to the second node, and vice versa. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0008] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0009] Receiving first signaling in a first resource pool;

[0010] receiving a first signal;

[0011] Among them, the first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include the first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0012] As an embodiment, the problem to be solved by the present application includes: when the physical layer control channel adopts multiple TRP / panel transmission, how will the beams between the data channel and the control channel be associated. The above method solves this problem by establishing a connection between the number of beams corresponding to the control channel and the beams of the data channel.

[0013] As an embodiment, the characteristics of the above method include: when the first signaling does not explicitly indicate the spatial domain relationship corresponding to the first signal, how to determine that the spatial domain relationship corresponding to the first signal is related to the number of spatial domain relationships corresponding to the first resource pool.

[0014] As an embodiment, the benefits of the above method include: realizing multi-TRP / panel transmission of the physical layer control channel and improving the transmission reliability of the physical layer control channel.

[0015] As an embodiment, the benefits of the above method include: indicating the spatial relationship of the data channels in an implicit manner, thereby saving signaling overhead.

[0016] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0017] As an embodiment, the benefits of the above method include indicating the first spatial domain relationship in an implicit manner, thereby saving signaling overhead.

[0018] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0019] As an embodiment, the benefits of the above method include indicating the first spatial domain relationship in an implicit manner, thereby saving signaling overhead.

[0020] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool; the second resource pool corresponds to only one spatial domain relationship, and the time-frequency resources occupied by the first signal are used to determine the second resource pool.

[0021] As an embodiment, the benefits of the above method include indicating the first spatial domain relationship in an implicit manner, thereby saving signaling overhead.

[0022] According to one aspect of the present application, it is characterized in that the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set, and the first spatial domain relationship belongs to the second spatial domain relationship set; the number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

[0023] According to one aspect of the present application, it is characterized by comprising:

[0024] receiving a first information block;

[0025] The first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set.

[0026] According to one aspect of the present application, it is characterized in that the time interval between the first signaling and the first signal is not less than a first threshold.

[0027] According to one aspect of the present application, it is characterized in that the first node is a user equipment.

[0028] According to one aspect of the present application, it is characterized in that the first node is a relay node.

[0029] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0030] Sending a first signaling in a first resource pool;

[0031] sending a first signal;

[0032] Among them, the first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include the first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0033] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0034] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0035] According to one aspect of the present application, it is characterized in that when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool; the second resource pool corresponds to only one spatial domain relationship, and the time-frequency resources occupied by the first signal are used to determine the second resource pool.

[0036] According to one aspect of the present application, it is characterized in that the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set, and the first spatial domain relationship belongs to the second spatial domain relationship set; the number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

[0037] According to one aspect of the present application, it is characterized by comprising:

[0038] Sending a first information block;

[0039] The first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set.

[0040] According to one aspect of the present application, it is characterized in that the time interval between the first signaling and the first signal is not less than a first threshold.

[0041] According to one aspect of the present application, it is characterized in that the second node is a base station.

[0042] According to one aspect of the present application, it is characterized in that the second node is a user equipment.

[0043] According to one aspect of the present application, it is characterized in that the second node is a relay node.

[0044] The present application discloses a first node device used for wireless communication, characterized in that it includes:

[0045] A first receiver receives a first signaling in a first resource pool;

[0046] A first processor receives a first signal;

[0047] Among them, the first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include the first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0048] The present application discloses a second node device used for wireless communication, characterized in that it includes:

[0049] A first transmitter sends a first signaling in a first resource pool;

[0050] A second processor sends a first signal;

[0051] Among them, the first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include the first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0052] As an embodiment, compared with the traditional solution, this application has the following advantages:

[0053] - Realizes multi-TRP / panel transmission of physical layer control channels, improving the transmission reliability of physical layer control channels;

[0054] -Solved the beam association problem between data channel and control channel when the physical layer control channel adopts multiple TRP / panel transmission;

[0055] -Saves signaling overhead by implicitly indicating the spatial relationship of data channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0057] Figure 1 A flowchart of first signaling and a first signal according to an embodiment of the present application is shown;

[0058] Figure 2 A schematic diagram of a network architecture according to an embodiment of the present application is shown;

[0059] Figure 3 A schematic diagram showing an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0060] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application is shown;

[0061] Figure 5 A flow chart showing transmission according to an embodiment of the present application is shown;

[0062] Figure 6 A schematic diagram showing a first airspace relationship according to an embodiment of the present application is shown;

[0063] Figure 7 A schematic diagram showing the correspondence between a given signal and a given spatial domain according to an embodiment of the present application is shown;

[0064] Figure 8A schematic diagram showing that the number of airspace relations included in the first airspace relation set is used to determine the first airspace relation according to an embodiment of the present application;

[0065] Fig. 9 A schematic diagram showing that the number of airspace relations included in the first airspace relation set is used to determine the first airspace relation according to an embodiment of the present application;

[0066] Fig.10 A schematic diagram showing that the number of airspace relations included in the first airspace relation set is used to determine the first airspace relation according to an embodiment of the present application;

[0067] Fig.11 A schematic diagram showing that the number of airspace relations included in the first airspace relation set is used to determine the first airspace relation according to an embodiment of the present application;

[0068] Fig.12 A schematic diagram showing that time-frequency resources occupied by a first signal are used to determine a second resource pool according to an embodiment of the present application;

[0069] Fig.13 A schematic diagram showing the correspondence between a first resource pool and a first spatial relationship set according to an embodiment of the present application is shown;

[0070] Fig.14 A schematic diagram showing the correspondence between a first resource pool and a first spatial domain relationship set according to an embodiment of the present application is shown;

[0071] Fig.15 A schematic diagram showing the correspondence between a given resource pool and a given airspace according to an embodiment of the present application is shown;

[0072] Fig.16 A schematic diagram showing the correspondence between a first signal and each spatial domain relationship in a second spatial domain relationship set according to an embodiment of the present application is shown;

[0073] Fig.17 A schematic diagram showing a first information block according to an embodiment of the present application;

[0074] Fig.18 A schematic diagram showing a first information block according to an embodiment of the present application;

[0075] Fig.19 A schematic diagram showing that the time interval between the first signaling and the first signal is not less than the first threshold according to an embodiment of the present application;

[0076] Fig. 20 A structural block diagram of a processing device used in a first node device according to an embodiment of the present application is shown;

[0077] Fig.21 A structural block diagram of a processing device for a device in a second node according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0078] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments in the present application and the features in the embodiments can be combined with each other arbitrarily.

[0079] Example 1

[0080] Embodiment 1 illustrates a flowchart of a first signaling and a first signal according to an embodiment of the present application, as shown in the attached Figure 1 As shown in the attached Figure 1 In the illustrated 100, each box represents a step. In particular, the order of the steps in the boxes does not represent a specific time sequence between the steps.

[0081] In Embodiment 1, the first node in the present application receives a first signaling in a first resource pool in step 101, and receives a first signal in step 102. The first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include a first domain, and the first domain indicates a spatial domain relationship corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0082] As an embodiment, the first resource pool includes time domain resources.

[0083] As an embodiment, the first resource pool includes frequency domain resources.

[0084] As an embodiment, the first resource pool includes code domain resources.

[0085] As an embodiment, the code domain resources include a DMRS (DeModulation Reference Signals) port, a DMRS CDM group, a pseudo-random sequence, a Zadoff-Chu sequence, a low PAPR (Peak-to-Average Power Ratio) sequence, a cyclic shift, an OCC (Orthogonal Cover Code) or one or more of an orthogonal sequence.

[0086] As an embodiment, the first resource pool occupies a positive integer number of REs (Resource Element) in the time-frequency domain.

[0087] As an embodiment, one RE occupies one multi-carrier symbol in the time domain and one subcarrier in the frequency domain.

[0088] As an embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0089] As an embodiment, the multi-carrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

[0090] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM (Discrete Fourier Transform Spread OFDM) symbol.

[0091] As an embodiment, the first resource pool occupies a positive integer number of subcarriers in the frequency domain.

[0092] As an embodiment, the first resource pool occupies a positive integer number of PRBs (Physical Resource Blocks) in the frequency domain.

[0093] As an embodiment, the first resource pool occupies a positive integer number of multi-carrier symbols in the time domain.

[0094] As an embodiment, the first resource pool occupies a positive integer number of time slots in the time domain.

[0095] As an embodiment, the first resource pool appears only once in the time domain.

[0096] As an embodiment, the first resource pool appears multiple times in the time domain.

[0097] As an embodiment, the first resource pool appears periodically in the time domain.

[0098] As an embodiment, the first resource pool appears non-periodically in the time domain.

[0099] As an embodiment, the first resource pool includes CORESET (COntrol REsource SET, control resource set).

[0100] As an embodiment, the first resource pool includes a search space.

[0101] As an embodiment, the first resource pool includes a search space set.

[0102] As an embodiment, the first resource pool includes a positive integer number of PDCCH (Physical Downlink Control Channel) candidates.

[0103] As an embodiment, the first resource pool includes multiple CCEs (Control Channel Element, control channel elements).

[0104] As an embodiment, the first resource pool includes multiple REGs (Resource Element Groups).

[0105] As an embodiment, the first signaling includes physical layer signaling.

[0106] As an embodiment, the first signaling includes dynamic signaling.

[0107] As an embodiment, the first signaling includes layer 1 (L1) signaling.

[0108] As an embodiment, the first signaling includes layer 1 (L1) control signaling.

[0109] As an embodiment, the first signaling includes DCI (Downlink control information).

[0110] As an embodiment, the first signaling includes one or more fields in a DCI.

[0111] As an embodiment, the first signaling includes one or more fields in a SCI (Sidelink Control Information).

[0112] As an embodiment, the first signaling includes a DCI for a downlink grant (DownLinkGrant).

[0113] As an embodiment, the first signaling includes a DCI for activating a downlink semi-persistent scheduling assignment (Downlink Semi-Persistent Scheduling Assignment).

[0114] As an embodiment, the first signaling includes RRC (Radio Resource Control) signaling.

[0115] As an embodiment, the first signaling includes MAC CE (Medium Access Control layer Control Element, media access control layer control element) signaling.

[0116] As an embodiment, the signaling format of the first signaling includes DCI format 1_0.

[0117] As an embodiment, the signaling format of the first signaling includes DCI format 1_1.

[0118] As an embodiment, the signaling format of the first signaling includes DCI format 1_2.

[0119] As an embodiment, the higher layer parameter tci-PresentInDCI configured by the first node is not enabled.

[0120] As an embodiment, the first node is not configured with a higher layer parameter tci-PresentInDCI.

[0121] As an embodiment, the higher layer parameter tci-PresentInDCI-ForDCIFormat1_2 configured by the first node is not enabled.

[0122] As an embodiment, the first node is not configured with a higher layer parameter tci-PresentInDCI-ForDCIFormat1_2.

[0123] As an embodiment, the first signal includes a baseband signal.

[0124] As an embodiment, the first signal includes a wireless signal.

[0125] As an embodiment, the first signal includes a radio frequency signal.

[0126] As an embodiment, the first signal carries a bit block, and the bit block is a TB (Transport Block), a CB (Code Block) or a CBG (Code Block Group).

[0127] As an embodiment, the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, MCS (Modulation and Coding Scheme), DMRS port, HARQ (Hybrid Automatic Repeat reQuest) process number, RV (Redundancy Version) or NDI (New Data Indicator).

[0128] As an embodiment, the first signaling explicitly indicates the scheduling information of the first signal.

[0129] As an embodiment, the first signaling implicitly indicates the scheduling information of the first signal.

[0130] As an embodiment, the first signaling explicitly indicates a part of the scheduling information of the first signal, and implicitly indicates another part of the scheduling information of the first signal.

[0131] As an embodiment, the first signal appears only once in the time domain.

[0132] As an embodiment, the first signal appears multiple times in the time domain.

[0133] As an embodiment, the first signal includes a transmission of the first bit block.

[0134] As an embodiment, the first signal includes multiple repeated transmissions of the first bit block.

[0135] As an embodiment, the first spatial domain relationship set includes a positive integer number of spatial domain relationships.

[0136] As an embodiment, the number of spatial domain relationships included in the first spatial domain relationship set is equal to 1.

[0137] As an embodiment, the number of spatial domain relationships included in the first spatial domain relationship set is greater than 1.

[0138] As an embodiment, the number of spatial domain relationships included in the first spatial domain relationship set is equal to 2.

[0139] As an embodiment, the number of spatial domain relationships included in the first spatial domain relationship set is equal to 1 or 2.

[0140] As an embodiment, the airspace relationship includes a TCI (Transmission Configuration Indicator) state.

[0141] As an embodiment, the spatial domain relationship includes a QCL (Quasi Co-Location) assumption.

[0142] As an embodiment, the spatial relationship includes QCL parameters.

[0143] As an embodiment, the spatial domain relationship includes a QCL relationship.

[0144] As an embodiment, the spatial relationship includes a spatial setting.

[0145] As an embodiment, the spatial relationship includes Spatial Relation.

[0146] As an embodiment, the spatial domain relationship includes a spatial domain filter.

[0147] As an embodiment, the spatial domain relationship includes a spatial domain transmission filter.

[0148] As an embodiment, the spatial domain relationship includes a spatial domain receive filter.

[0149] As an embodiment, the spatial relationship includes a spatial transmission parameter (Spatial Tx parameter).

[0150] As an embodiment, the spatial relationship includes a spatial reception parameter (Spatial Rx parameter).

[0151] As an embodiment, the spatial relationship includes large-scale properties.

[0152] As an embodiment, the large-scale properties include one or more of {delay spread, Doppler spread, Doppler shift, average delay, spatial Rx parameter}.

[0153] As an embodiment, the correspondence between the first resource pool and the first spatial relationship set is configured by RRC signaling.

[0154] As an embodiment, the correspondence between the first resource pool and the first spatial relationship set is configured by an IE (Information Element).

[0155] As an embodiment, the correspondence between the first resource pool and the first spatial relationship set is jointly configured by RRC signaling and MAC CE.

[0156] As an embodiment, the sentence that the first resource pool corresponds to the first spatial domain relationship set means that the first resource pool corresponds to each spatial domain relationship in the first spatial domain relationship set.

[0157] As an embodiment, the sentence that the first resource pool corresponds to the first spatial domain relationship set means that the first spatial domain relationship set includes only one spatial domain relationship, and the first resource pool corresponds to the one spatial domain relationship.

[0158] As an embodiment, the sentence that the first resource pool corresponds to the first spatial relationship set means that the first spatial relationship set includes only one spatial relationship, and the first resource pool corresponds to only the one spatial relationship.

[0159] As an embodiment, the sentence that the first resource pool corresponds to the first spatial domain relationship set means that the first spatial domain relationship set includes multiple spatial domain relationships, and the first resource pool corresponds to each of the multiple spatial domain relationships.

[0160] As an embodiment, the sentence that the first resource pool corresponds to the first spatial relationship set means that the first spatial relationship set includes multiple spatial relationships, and the first resource pool corresponds to multiple activated spatial relationships at the same time.

[0161] As an embodiment, each airspace relationship in the first airspace relationship set is an activated airspace relationship corresponding to the first resource pool.

[0162] As an embodiment, any spatial domain relationship in the first spatial domain relationship set indicates a reference signal resource.

[0163] As a sub-embodiment of the above embodiment, the QCL type corresponding to the one reference signal resource is QCL-TypeD.

[0164] As a sub-embodiment of the above embodiment, the reference signal resource is one of a CSI-RS (Channel State Information-Reference Signal) resource, a SSB (Synchronisation Signal / physical broadcast channel Block) resource or a SRS (Sounding Reference Signal) resource.

[0165] As an embodiment, when there is a spatial domain relationship indicating two reference signal resources in the first spatial domain relationship set, the two reference signal resources correspond to two different QCL types respectively.

[0166] As a sub-embodiment of the above embodiment, the two different QCL types are QCL-Type D and QCL-Type A respectively.

[0167] As an embodiment, the first field includes all or part of the information in the Transmission configuration indication field.

[0168] As an embodiment, the first field is a Transmission configuration indication field.

[0169] As an embodiment, the first field indicates a TCI state.

[0170] As an embodiment, the first field indicates one or two TCI states.

[0171] As an embodiment, the first field indicates a TCI codepoint.

[0172] As an embodiment, the signaling to which the first domain belongs includes layer 1 (L1) signaling.

[0173] As an embodiment, the signaling to which the first domain belongs includes one or more domains in a DCI.

[0174] As an embodiment, the signaling to which the first domain belongs includes DCI for downlink granting.

[0175] As an embodiment, the signal scheduled by the signaling belonging to the first domain includes a baseband signal.

[0176] As an embodiment, the signal scheduled by the signaling belonging to the first domain includes a wireless signal.

[0177] As an embodiment, the signal scheduled by the signaling belonging to the first domain is transmitted on PDSCH (Physical Downlink Shared CHannel).

[0178] As an embodiment, the transmission channel corresponding to the signal scheduled by the signaling belonging to the first domain is DL-SCH (DownLink Shared Channel).

[0179] As an embodiment, the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs.

[0180] Example 2

[0181] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the attached Figure 2 shown.

[0182] Attached Figure 2The network architecture 200 of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced) and future 5G systems is illustrated. The network architecture 200 of LTE, LTE-A and future 5G systems is called EPS (Evolved Packet System) 200. The 5GNR or LTE network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System) 200 or some other suitable terminology. 5GS / EPS 200 may include one or more UEs (User Equipment) 201, a UE 241 communicating with UE 201 via a sidelink, NG-RAN (Next Generation Radio Access Network) 202, 5GC (5G Core Network) / EPC (Evolved Packet Core) 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. 5GS / EPS 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. Figure 2As shown, 5GS / EPS200 provides packet switching services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. NG-RAN202 includes NR (New Radio) Node B (gNB) 203 and other gNBs204. gNB203 provides user and control plane protocol terminations toward UE201. gNB203 can be connected to other gNBs204 via an Xn interface (e.g., backhaul). gNB203 may 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 (transmit receive point), or some other suitable term. gNB203 provides an access point to 5GC / EPC210 for UE201. Examples of UE 201 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 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 wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. gNB203 is connected to 5GC / EPC210 via S1 / NG interface. 5GC / EPC210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF213. MME / AMF / SMF211 is a control node that handles signaling between UE201 and 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management.All user IP (Internet Protocol) packets are transmitted through S-GW / UPF212, which is itself connected to P-GW / UPF213. P-GW provides UE IP address allocation and other functions. P-GW / UPF213 is connected to Internet service 230. Internet service 230 includes operator-corresponding Internet protocol services, which may specifically include Internet, Intranet, IMS (IP Multimedia Subsystem) and Packet switching services.

[0183] As an embodiment, the first node in the present application includes the UE201.

[0184] As an embodiment, the first node in the present application includes the UE241.

[0185] As an embodiment, the second node in the present application includes the gNB203.

[0186] As an embodiment, the second node in the present application includes the UE241.

[0187] As an embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

[0188] As an embodiment, the wireless link between the UE201 and the UE241 is a sidelink.

[0189] As an embodiment, the sender of the first signaling in the present application includes the gNB203.

[0190] As an embodiment, the recipient of the first signaling in the present application includes the UE201.

[0191] As an embodiment, the sender of the first signal in the present application includes the gNB203.

[0192] As an embodiment, the receiver of the first signal in the present application includes the UE201.

[0193] Example 3

[0194] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in the attached figure. Figure 3 shown.

[0195] Embodiment 3 shows a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to the present application, as shown in the attached Figure 3 shown. Figure 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300, Figure 3The radio protocol architecture of 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), or between two UEs 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 PHY301 in this article. Layer 2 (L2 layer) 305 is above PHY301 and is responsible for the link between the first communication node device and the second communication node device, or between two UEs. The L2 layer 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate 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 by encrypting data packets, and provides support for inter-zone mobility of the first communication node device between the second communication node device. 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 various radio resources (e.g., resource blocks) in a cell between the first communication node devices. 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 layer using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). The radio protocol architecture used for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355, 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 mapping between QoS flows and data radio bearers (DRBs) to support the diversity of services. Although not shown in the figure, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., an IP layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0196] As an example, Figure 3 The wireless protocol architecture in is applicable to the first node in this application.

[0197] As an example, Figure 3 The wireless protocol architecture in is applicable to the second node in this application.

[0198] As an embodiment, the first signaling is generated in the PHY301 or the PHY351.

[0199] As an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0200] As an embodiment, the first signal is generated by the PHY301 or the PHY351.

[0201] As an embodiment, the first information block is generated in the RRC sublayer 306.

[0202] Example 4

[0203] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in the attached figure. Figure 4 Attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0204] The first communication 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 an antenna 420 .

[0205] The second communication device 450 includes 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.

[0206] In transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functionality of the L2 layer. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, as well as constellation mapping 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, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying a time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs a transmit analog precoding / beamforming operation on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0207] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 458 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 454. The receiving processor 456 uses a fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 458 to any parallel stream destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. The receiving processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 storing program codes and data. The memory 460 may be referred to as a computer-readable medium. In DL, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transmission and logical channels to recover the 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 may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using confirmation (ACK) and / or negative confirmation (NACK) protocols to support HARQ operations.

[0208] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function at the first communication device 410 described in DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communication device 410, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 468 modulates the generated parallel stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 452 via the transmitter 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 symbol stream, and then provides it to the antenna 452.

[0209] In the transmission from the second communication device 450 to the first communication device 410, the function at the first communication device 410 is similar to the reception function at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 472 and the reception processor 470. The reception processor 470 and the multi-antenna reception processor 472 jointly implement the functions of the L1 layer. The controller / processor 475 implements the L2 layer functions. 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. The controller / processor 475 provides demultiplexing between transmission and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 can be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0210] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 device at least: receives the first signaling in the first resource pool; receives the first signal. The first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to the first spatial domain relationship set; the first signaling does not include the first domain, the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal pair corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0211] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: receiving the first signaling in the first resource pool; receiving the first signal. The first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first airspace relationship set; the first signaling does not include a first domain, the first domain indicates the airspace relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first airspace relationship, and the number of airspace relationships included in the first airspace relationship set is used to determine the first airspace relationship.

[0212] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory includes computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least: sends the first signaling in the first resource pool; sends the first signal. The first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include a first domain, the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0213] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generates an action when executed by at least one processor, the action including: sending the first signaling in the first resource pool; sending the first signal. The first signaling indicates the scheduling information of the first signal; the first resource pool corresponds to a first airspace relationship set; the first signaling does not include a first domain, the first domain indicates the airspace relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to the first airspace relationship, and the number of airspace relationships included in the first airspace relationship set is used to determine the first airspace relationship.

[0214] As an embodiment, the first node in the present application includes the second communication device 450.

[0215] As an embodiment, the second node in the present application includes the first communication device 410.

[0216] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling in the first resource pool; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the first signaling in the first resource pool.

[0217] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signal; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} is used to send the first signal.

[0218] As an embodiment, at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first information block; and at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, and the memory 476} sends the first information block.

[0219] Example 5

[0220] Embodiment 5 illustrates a flowchart of wireless transmission according to an embodiment of the present application, as shown in the attached Figure 5 As shown in the attached Figure 5 In the embodiment, the second node U1 and the first node U2 are communication nodes transmitted via the air interface. Figure 5 In the embodiment, the steps in blocks F51 to F55 are respectively optional.

[0221] For the second node U1, the third information block is sent in step S5101; the fourth information block is received in step S5102; the first information block is sent in step S5103; the second signaling is sent in step S5104; the third signaling is sent in step S5105; the first signaling is sent in the first resource pool in step S511; and the first signal is sent in step S512.

[0222] For the first node U2, the third information block is received in step S5201; the fourth information block is sent in step S5202; the first information block is received in step S5203; the second signaling is received in step S5204; the third signaling is received in step S5205; the first signaling is received in the first resource pool in step S521; and the first signal is received in step S522.

[0223] In Example 5, the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used by the first node U2 to determine the first spatial domain relationship.

[0224] As an embodiment, the first node U2 is the first node in this application.

[0225] As an embodiment, the second node U1 is the second node in this application.

[0226] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between a base station device and a user equipment.

[0227] As an embodiment, the air interface between the second node U1 and the first node U2 includes a wireless interface between user equipments.

[0228] As an embodiment, the first signaling is transmitted on a downlink physical layer control channel (ie, a downlink channel that can only be used to carry physical layer signaling).

[0229] As an embodiment, the first signaling is transmitted on PDCCH.

[0230] As an embodiment, the first signaling is transmitted on PSCCH (Physical Sidelink Control Channel).

[0231] As an embodiment, the first signal is transmitted on a downlink physical layer data channel (ie, a downlink channel that can be used to carry physical layer data).

[0232] As an embodiment, the first signal is transmitted on PDSCH.

[0233] As an embodiment, the first signal is transmitted on PSSCH (Physical Sidelink Shared Channel).

[0234] As an example, Figure 5 The step in box F51 exists; the time interval between the first signaling and the first signal is not less than a first threshold, and the third information block indicates the first threshold.

[0235] As an embodiment, the third information block is carried by RRC signaling.

[0236] As an example, Figure 5 The step in box F51 does not exist.

[0237] As an example, Figure 5 The step in box F52 exists; the time interval between the first signaling and the first signal is not less than a first threshold, and the fourth information block is used by the second node U1 to determine the first threshold.

[0238] As an embodiment, the fourth information block indicates the first threshold.

[0239] As an embodiment, the fourth information block is carried by RRC signaling.

[0240] As an embodiment, the fourth information block includes all or part of the information in the timeDurationForQCL field in the FeatureSetDownlink IE.

[0241] As an example, Figure 5The step in box F52 does not exist.

[0242] As an example, Figure 5 The steps in box F53 exist; the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set, the first spatial domain relationship belongs to the second spatial domain relationship set, and the first information block is used by the first node to determine the number of spatial domain relationships included in the second spatial domain relationship set.

[0243] As an example, Figure 5 The step in box F53 does not exist.

[0244] As an example, Figure 5 The step in box F54 exists; the second signaling indicates the configuration information of the first resource pool.

[0245] As an embodiment, the second signaling is an RRC signaling.

[0246] As an embodiment, the second signaling is a MAC CE signaling.

[0247] As an embodiment, the second signaling includes information in all or part of the fields of ControlResourceSetIE.

[0248] As an embodiment, the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type (SearchSpace Type), or PDCCH format (format).

[0249] As an embodiment, the second signaling indicates the first spatial domain relationship set.

[0250] As an embodiment, the second signaling indicates P candidate spatial domain relations, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relations.

[0251] As an example, Figure 5 The step in box F55 exists; the third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships.

[0252] As an embodiment, the third signaling is a MAC CE signaling.

[0253] As an embodiment, the third signaling is a physical layer signaling.

[0254] As an example, Figure 5 The steps in boxes F54 and F55 in are present.

[0255] As an example, Figure 5 The steps in box F54 exist, but the steps in box F55 do not exist.

[0256] Example 6

[0257] Example 6 illustrates a schematic diagram of a first airspace relationship according to an embodiment of the present application; Figure 6 In embodiment 6, the first spatial relationship indicates a first reference signal resource, the first reference signal resource is reserved for a first reference signal, and the first reference signal resource is used to determine the spatial relationship of the first signal.

[0258] As an embodiment, the first spatial domain relationship indicates a QCL type corresponding to the first reference signal resource.

[0259] As an embodiment, the QCL type corresponding to the first reference signal resource is QCL-TypeD.

[0260] As an embodiment, the first spatial relationship indicates a second reference signal resource, the QCL type corresponding to the second reference signal resource is different from the QCL type corresponding to the first reference signal resource, and the second reference signal resource is used to determine the spatial relationship of the first signal.

[0261] As a sub-embodiment of the above embodiment, the QCL type corresponding to the second reference signal resource is QCL-TypeA.

[0262] As an embodiment, the first reference signal resource includes a CSI-RS resource.

[0263] As an embodiment, the first reference signal resource includes a CSI-RS resource set (resource set).

[0264] As an embodiment, the first reference signal resource includes an SSB resource.

[0265] As an embodiment, the first reference signal resource includes an SRS resource (resource).

[0266] As an embodiment, the first reference signal resource includes an SRS resource set (resource set).

[0267] As an embodiment, the first reference signal resource is periodic.

[0268] As an embodiment, the first reference signal resource is semi-persistent.

[0269] As an embodiment, the first reference signal resource is aperiodic.

[0270] As an embodiment, the first reference signal includes CSI-RS.

[0271] As an embodiment, the first reference signal includes NZP (None Zero-Power) CSI-RS.

[0272] As an embodiment, the first reference signal includes SSB.

[0273] As an embodiment, the first reference signal includes SRS.

[0274] Example 7

[0275] Embodiment 7 illustrates a schematic diagram of the relationship between a given signal and a given airspace according to an embodiment of the present application; Figure 7 In embodiment 7, the given signal corresponds to the given spatial domain relationship, the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

[0276] As an embodiment, the given signal is the first signal, and the given spatial domain relationship is the first spatial domain relationship.

[0277] As an embodiment, the given signal is the first signal, and the given spatial domain relationship is any spatial domain relationship in the second spatial domain relationship set.

[0278] As an embodiment, the given signal is any signal scheduled by the signaling to which the first domain belongs.

[0279] As an embodiment, the second spatial domain relationship set includes Q spatial domain relationships, Q is a positive integer greater than 1; the first signal includes Q sub-signals, and the spatial domain relationships corresponding to the Q sub-signals are respectively the Q spatial domain relationships; the given signal is any sub-signal among the Q sub-signals, and the given spatial domain relationship is a spatial domain relationship among the Q spatial domain relationships that corresponds to the given signal.

[0280] As an embodiment, the QCL type corresponding to the given reference signal is QCL-TypeD.

[0281] As an embodiment, the given spatial domain relationship indicates multiple reference signal resources, and the given reference signal is any reference signal resource among the multiple reference signal resources.

[0282] As an embodiment, the given spatial domain relationship indicates multiple reference signal resources, any two reference signal resources among the multiple reference signal resources correspond to different QCL types, and the given reference signal is a reference signal resource whose corresponding QCL type is QCL-TypeD among the multiple reference signal resources.

[0283] As an embodiment, the meaning of the sentence that the given signal and the given spatial domain relationship correspond to each other includes: the large-scale characteristics of the channel experienced by the given signal can be inferred from the large-scale characteristics of the channel experienced by the given reference signal.

[0284] As an embodiment, the meaning of the sentence that the given signal and the given spatial domain relationship correspond to each other includes: the spatial domain filter corresponding to the given reference signal is used to determine the spatial domain filter corresponding to the given signal.

[0285] As an embodiment, the meaning of the sentence that the given signal and the given spatial domain relationship correspond to each other includes: the first node uses the same spatial domain filter to receive the given reference signal and the given signal.

[0286] As an embodiment, the meaning of the sentence that the given signal and the given spatial domain relationship correspond to each other includes: the first node uses the same spatial domain filter to send the given reference signal and receive the given signal.

[0287] As an embodiment, the meaning of the correspondence between the given signal and the given spatial domain relationship in the sentence includes: a DMRS port of the given signal and a transmitting antenna port QCL of the given reference signal.

[0288] As an embodiment, the meaning of the corresponding relationship between the given signal and the given spatial domain in the sentence includes: a DMRS port of the given signal and a transmitting antenna port of the given reference signal are QCL and correspond to QCL-TypeD.

[0289] Example 8

[0290] Embodiment 8 illustrates a schematic diagram of the number of airspace relations included in the first airspace relation set according to an embodiment of the present application being used to determine the first airspace relation; Figure 8 shown.

[0291] As an embodiment, when the number of spatial domain relations included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

[0292] As an embodiment, when the number of spatial domain relationships included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is independent of the first spatial domain relationship set.

[0293] As an embodiment, when the number of spatial domain relationships included in the first spatial domain relationship set is greater than 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

[0294] As an embodiment, when the number of airspace relations included in the first airspace relation set is greater than 1, the first airspace relation and the first airspace relation set are non-existent.

[0295] As an embodiment, the number of airspace relations included in the second airspace relation set and the number of airspace relations included in the first airspace relation set are used together to determine the first airspace relation.

[0296] As an embodiment, the size relationship between the number of spatial domain relationships included in the second spatial domain relationship set and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0297] As an embodiment, when the number of spatial domain relations included in the first spatial domain relationship set and the number of spatial domain relations included in the second spatial domain relationship set are both equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

[0298] As an embodiment, when the number of airspace relations included in the first airspace relation set is equal to 1 and the number of airspace relations included in the second airspace relation set is greater than 1, the first airspace relation is independent of the first airspace relation set.

[0299] As an embodiment, when the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

[0300] As an embodiment, when the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to 1, the first airspace relation is independent of the first airspace relation set.

[0301] As an embodiment, when the number of spatial domain relations included in the first spatial domain relationship set is greater than 1 and the number of spatial domain relations included in the second spatial domain relationship set is equal to 1, the first spatial domain relationship belongs to the first spatial domain relationship set.

[0302] As an embodiment, when the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

[0303] As an embodiment, when the number of airspace relations included in the second airspace relation set is not equal to the number of airspace relations included in the first airspace relation set, the first airspace relation is independent of the first airspace relation set.

[0304] As an embodiment, when the number of airspace relations included in the first airspace relation set is greater than the number of airspace relations included in the second airspace relation set, the first airspace relation belongs to the first airspace relation set.

[0305] As an embodiment, when the number of airspace relations included in the first airspace relation set is greater than the number of airspace relations included in the second airspace relation set, the first airspace relation is independent of the first airspace relation set.

[0306] As an embodiment, when the number of airspace relations included in the first airspace relation set is less than the number of airspace relations included in the second airspace relation set, the first airspace relation is independent of the first airspace relation set.

[0307] Example 9

[0308] Embodiment 9 illustrates a schematic diagram of the number of airspace relations included in the first airspace relation set according to an embodiment of the present application being used to determine the first airspace relation; Fig. 9 In Embodiment 9, if the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; and the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0309] As an embodiment, if the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0310] As an embodiment, when the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0311] As an embodiment, K is equal to 2.

[0312] As an embodiment, K is greater than 2.

[0313] As an embodiment, the default meaning includes: fixed.

[0314] As an embodiment, the default meaning includes: predefined.

[0315] As an embodiment, the default meaning includes: no signaling indication is required.

[0316] As an embodiment, the default meaning includes: no dynamic signaling indication is required.

[0317] As an embodiment, the default meaning includes: no need for higher layer signaling indication.

[0318] As an embodiment, the K spatial domain relations correspond one-to-one to K first-category indexes, and the K first-category indexes are non-negative integers respectively; the K first-category indexes are used to determine the first spatial domain relationship from the K spatial domain relations.

[0319] As an embodiment, the K first-category indexes are mutually unequal.

[0320] As an embodiment, the K first-category indexes are respectively used to identify the K spatial domain relations.

[0321] As an embodiment, the K first-category indexes include ControlResourceSetId.

[0322] As an embodiment, the K first-category indexes include TCI-StateId (TCI state identifier).

[0323] As an embodiment, the K first-category indexes include SRS-ResourceId.

[0324] As an embodiment, the K first-category indexes include NZP-CSI-RS-ResourceId.

[0325] As an embodiment, the K first-category indexes include SSB-Index.

[0326] As an embodiment, the sentence that the position of the first spatial domain relationship among the K spatial domain relationships is the default means that: the first category index corresponding to the first spatial domain relationship is the smallest first category index among the K first category indexes.

[0327] As an embodiment, the sentence that the position of the first spatial domain relationship among the K spatial domain relationships is the default means that: the first category index corresponding to the first spatial domain relationship is the largest first category index among the K first category indexes.

[0328] As an embodiment, the sentence that the position of the first spatial domain relationship among the K spatial domain relationships is the default meaning includes: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the frontmost spatial domain relationship among the K spatial domain relationships.

[0329] As an embodiment, the sentence that the position of the first spatial domain relationship among the K spatial domain relationships is the default meaning includes: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the last spatial domain relationship among the K spatial domain relationships.

[0330] As an embodiment, the second information block is carried by RRC signaling.

[0331] As an embodiment, the second information block indicates the K first category indexes in sequence.

[0332] As an embodiment, the second information block is carried by the second signaling.

[0333] As an embodiment, the second information block is carried by the third signaling.

[0334] As an embodiment, the sentence that the position of the first spatial domain relationship among the K spatial domain relationships is the default meaning includes: the second signaling indicates the P candidate spatial domain relationships in sequence; the position of the first spatial domain relationship among the P candidate spatial domain relationships is before any spatial domain relationship among the K spatial domain relationships that is different from the first spatial domain relationship.

[0335] Example 10

[0336] Embodiment 10 illustrates a schematic diagram of the number of airspace relations included in the first airspace relation set according to an embodiment of the present application being used to determine the first airspace relation; Fig.10In embodiment 10, if the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used by the first node to determine the first spatial domain relationship from the K spatial domain relationships.

[0337] As an embodiment, if the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0338] As an embodiment, when the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0339] As an embodiment, the time-frequency resources occupied by the first signaling are used to determine a second index, and the second index is used to determine the first spatial domain relationship from the K spatial domain relationships; the second index is a non-negative integer.

[0340] As an embodiment, the K spatial domain relationships correspond to K numerical sets respectively; the first spatial domain relationship corresponds to a first numerical set among the K numerical sets, and the value of the second index belongs to the first numerical set; any numerical set among the K numerical sets includes a positive integer number of non-negative integers, and there is no non-negative integer that belongs to two different numerical sets among the K numerical sets at the same time.

[0341] As an embodiment, K is equal to 2, and the K spatial domain relationships include a second spatial domain relationship and a third spatial domain relationship; if the second index modulo 2 is equal to 0, the first spatial domain relationship is the second spatial domain relationship; if the second index modulo 2 is equal to 1, the first spatial domain relationship is the third spatial domain relationship.

[0342] As a sub-embodiment of the above embodiment, the K spatial domain relationships correspond one-to-one to the K first-category indexes, and the first-category index corresponding to the second spatial domain relationship is smaller than the first-category index corresponding to the third spatial domain relationship.

[0343] As a sub-embodiment of the above embodiment, the K spatial domain relationships correspond one-to-one to the K first-category indexes, and the first-category index corresponding to the second spatial domain relationship is greater than the first-category index corresponding to the third spatial domain relationship.

[0344] As a sub-embodiment of the above embodiment, the second information block indicates the K spatial domain relationships in sequence, and the second spatial domain relationship is arranged before the third spatial domain relationship.

[0345] As a sub-embodiment of the above embodiment, the second signaling indicates the P candidate spatial domain relationships in sequence; the second spatial domain relationship is ranked before the third spatial domain relationship among the P candidate spatial domain relationships.

[0346] As an embodiment, the second index is the index of the first CCE occupied by the first signaling.

[0347] As an embodiment, the first CCE occupied by the first signaling is the first CCE, and the second index is the index of the first CCE in the CORESET to which the first CCE belongs.

[0348] As an embodiment, the second index is the index of the first REG occupied by the first signaling.

[0349] As an embodiment, the second index is the index of the PDCCH candidate occupied by the first signaling.

[0350] As an embodiment, the PDCCH candidate occupied by the first signaling is the first PDCCH candidate, and the second index is the index of the first PDCCH candidate in the search space set to which the first PDCCH candidate belongs.

[0351] As an embodiment, the second index is the index of the first PRB occupied by the first signaling.

[0352] As an embodiment, the second index is the index of the slot occupied by the first signaling.

[0353] As an embodiment, the K spatial domain relationships correspond to K time-frequency resource sets respectively; the first spatial domain relationship corresponds to the first time-frequency resource set among the K time-frequency resource sets, and the time-frequency resources occupied by the first signaling belong to the first time-frequency resource set; the K time-frequency resource sets are mutually orthogonal in the time-frequency domain.

[0354] As an embodiment, each CCE occupied by the first signaling corresponds to and only corresponds to one spatial domain relationship among the K spatial domain relationships, and the first spatial domain relationship is the spatial domain relationship corresponding to the first CCE occupied by the first signaling.

[0355] As an embodiment, each REG occupied by the first signaling corresponds to and only corresponds to one spatial domain relationship among the K spatial domain relationships, and the first spatial domain relationship is the spatial domain relationship corresponding to the first REG occupied by the first signaling.

[0356] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships, and only one of the K spatial domain relationships is used to receive the first signaling; the first spatial domain relationship is the spatial domain relationship used to receive the first signaling.

[0357] Embodiment 11

[0358] Embodiment 11 illustrates a schematic diagram of the number of airspace relations included in the first airspace relation set according to an embodiment of the present application being used to determine the first airspace relation; Fig.11 In Embodiment 11, if the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool.

[0359] As an embodiment, if the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool.

[0360] As an embodiment, when the first spatial domain relationship set includes the K spatial domain relationships and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool.

[0361] As an embodiment, the second resource pool corresponds to the first airspace.

[0362] As an embodiment, the second resource pool only corresponds to the first airspace relationship.

[0363] As an embodiment, the sentence that the second resource pool corresponds to only one airspace relationship includes: the second resource pool corresponds to only one activated airspace relationship.

[0364] As an embodiment, the sentence that the second resource pool corresponds to only one spatial domain relationship includes: the transmitting antenna ports QCL of any two wireless signals transmitted in the second resource pool.

[0365] As an embodiment, the sentence that the second resource pool corresponds to only one spatial domain relationship includes: the transmitting antenna ports of any two wireless signals transmitted in the second resource pool are QCL and correspond to QCL-TypeD.

[0366] As an embodiment, the sentence that the second resource pool corresponds to only one spatial domain relationship includes: any two wireless signals transmitted in the second resource pool are received by the same spatial domain filter.

[0367] As an embodiment, the sentence that the second resource pool corresponds to only one spatial domain relationship includes: any two wireless signals transmitted in the second resource pool are sent by the same spatial domain filter.

[0368] As an embodiment, the second resource pool includes time domain resources.

[0369] As an embodiment, the second resource pool includes frequency domain resources.

[0370] As an embodiment, the second resource pool includes code domain resources.

[0371] As an embodiment, the second resource pool occupies a positive integer number of REs in the time-frequency domain.

[0372] As an embodiment, the second resource pool occupies a positive integer number of subcarriers in the frequency domain.

[0373] As an embodiment, the second resource pool occupies a positive integer number of PRBs in the frequency domain.

[0374] As an embodiment, the second resource pool occupies a positive integer number of multi-carrier symbols in the time domain.

[0375] As an embodiment, the second resource pool occupies a positive integer number of time slots in the time domain.

[0376] As an embodiment, the second resource pool appears only once in the time domain.

[0377] As an embodiment, the second resource pool appears periodically in the time domain.

[0378] As an embodiment, the second resource pool appears non-periodically in the time domain.

[0379] As an embodiment, the second resource pool includes CORESET.

[0380] As an embodiment, the second resource pool includes a search space.

[0381] As an embodiment, the second resource pool includes a search space set.

[0382] As an embodiment, the second resource pool includes a positive integer number of PDCCH candidates (PDCCHcandidate).

[0383] As an embodiment, the second resource pool includes multiple CCEs.

[0384] As an embodiment, the second resource pool includes multiple REGs.

[0385] As an embodiment, the correspondence between the first spatial domain relationship and the second resource pool is configured by RRC signaling.

[0386] As an embodiment, the correspondence between the first spatial domain relationship and the second resource pool is jointly configured by RRC signaling and MAC CE signaling.

[0387] As an embodiment, the fourth signaling indicates P1 airspace relationships, P1 is a positive integer greater than 1, and the first airspace relationship is one of the P1 airspace relationships; the fifth signaling activates the first airspace relationship from the P1 airspace relationships; the fourth signaling is an RRC signaling, and the fifth signaling is a MAC CE signaling.

[0388] Example 12

[0389] Embodiment 12 illustrates a schematic diagram of a time-frequency resource occupied by a first signal according to an embodiment of the present application being used to determine a second resource pool; Fig.12 In Embodiment 12, the time domain resources occupied by the first signal are used to determine a first time unit, the frequency domain resources occupied by the first signal are used to determine a first frequency domain interval, and the second resource pool is monitored by the first node in the first time unit and belongs to the first frequency domain interval in the frequency domain.

[0390] As an embodiment, the second resource pool and the first signal belong to the same BWP (Bandwidth part) in the frequency domain.

[0391] As an embodiment, the second resource pool and the first signal belong to the same service cell in the frequency domain.

[0392] As an embodiment, the second resource pool is one of S candidate resource pools, where S is a positive integer greater than 1; any one of the S candidate resource pools is monitored by the first node in the first time unit and belongs to the first frequency domain interval in the frequency domain; the S candidate resource pools respectively correspond to S second-class indexes, and the S second-class indexes are used to determine the second resource pool from the S candidate resource pools.

[0393] As a sub-embodiment of the above embodiment, any candidate resource pool among the S candidate resource pools corresponds to only one spatial domain relationship.

[0394] As a sub-embodiment of the above embodiment, any candidate resource pool among the S candidate resource pools is a CORESET configured by the first node.

[0395] As a sub-embodiment of the above embodiment, any candidate resource pool among the S candidate resource pools is a search space set configured for the first node.

[0396] As a sub-embodiment of the above embodiment, the second type index corresponding to the second resource pool is the smallest second type index among the S second type indexes.

[0397] As a sub-embodiment of the above embodiment, the second type index corresponding to the second resource pool is the largest second type index among the S second type indexes.

[0398] As a sub-embodiment of the above embodiment, the S second-category indexes are respectively non-negative integers.

[0399] As a sub-embodiment of the above embodiment, the S second-category indexes are respectively used to identify the S candidate resource pools.

[0400] As a sub-embodiment of the above embodiment, the S second-category indexes are ControlResourceSetId respectively.

[0401] As a sub-embodiment of the above embodiment, the S second-category indexes are SearchSpaceId respectively.

[0402] As a sub-embodiment of the above embodiment, the S second-category indexes are respectively TCI-StateId.

[0403] As an embodiment, the time unit is a continuous time period.

[0404] As an embodiment, the time unit is a time slot.

[0405] As an embodiment, the time unit is a span.

[0406] As an embodiment, the time unit includes a positive integer number of multi-carrier symbols.

[0407] As an embodiment, the first time unit is no later than the first signal.

[0408] As an embodiment, the first time unit is no later than the first signal and is the latest time unit in which the first node monitors one or more CORESETs in the first frequency domain interval.

[0409] As an embodiment, the first time unit is no later than the first signal and is the latest time unit in which the first node monitors one or more search space sets in the first frequency domain interval.

[0410] As an embodiment, the sentence “the first time unit is no later than the first signal” means that: the end time of the first time unit is no later than the end time of the first signal.

[0411] As an embodiment, the sentence “the first time unit is no later than the first signal” means that the end time of the first time unit is no later than the start time of the first signal.

[0412] As an embodiment, the sentence “the first time unit is no later than the first signal” means that: the starting time of the first time unit is no later than the starting time of the first signal.

[0413] As an embodiment, the sentence “the first time unit is no later than the first signal” means that the end moment of the first time unit is no later than the end moment of the time unit to which the first signal belongs.

[0414] As an embodiment, the sentence “the first time unit is no later than the first signal” means that the end time of the first time unit is no later than the start time of the time unit to which the first signal belongs.

[0415] As an embodiment, the sentence “the first time unit is no later than the first signal” means that the starting moment of the first time unit is no later than the starting moment of the time unit to which the first signal belongs.

[0416] As an embodiment, the time interval between the start time of the first time unit and the start time of the first signal is not greater than a second threshold, and the second threshold is a positive integer.

[0417] As an embodiment, the time interval between the start time of the first time unit and the start time of the time unit to which the first signal belongs is not greater than a second threshold, and the second threshold is a positive integer.

[0418] As an embodiment, the second threshold is predefined.

[0419] As an embodiment, the second threshold is configured by RRC.

[0420] As an embodiment, the unit of the second threshold is the time unit.

[0421] As an embodiment, the first frequency domain interval is a continuous frequency domain interval.

[0422] As an embodiment, the first frequency domain interval includes a positive integer number of consecutive PRBs.

[0423] As an embodiment, the first frequency domain interval includes the BWP to which the first signal belongs.

[0424] As an embodiment, the first frequency domain interval includes the service cell to which the first signal belongs.

[0425] As an embodiment, the first frequency domain interval includes a carrier to which the first signal belongs.

[0426] As an embodiment, the monitoring refers to blind decoding, that is, receiving a signal and performing a decoding operation, and judging whether a signaling is received based on a CRC (Cyclic Redundancy Check) bit.

[0427] As an embodiment, the monitoring refers to reception based on coherent detection, that is, coherent reception is performed and it is determined whether a signaling is received based on the energy of the signal obtained after the coherent reception.

[0428] As an embodiment, the monitoring refers to reception based on energy detection, that is, sensing the energy of the wireless signal and determining whether a signaling is received based on the average received energy.

[0429] Embodiment 13

[0430] Embodiment 13 illustrates a schematic diagram corresponding to a first resource pool and a first airspace relationship set according to an embodiment of the present application; Fig.13In embodiment 13, the first spatial domain relationship set includes K spatial domain relationships, and K is a positive integer greater than 1, the K spatial domain relationships respectively indicate K reference signal resources; the K reference signal resources are respectively reserved for K reference signals; the first resource pool corresponds to each of the K spatial domain relationships.

[0431] As an embodiment, the K reference signal resources include CSI-RS resources.

[0432] As an embodiment, the K reference signal resources include a CSI-RS resource set.

[0433] As an embodiment, the K reference signal resources include SSB resources.

[0434] As an embodiment, the K reference signal resources include SRS resources.

[0435] As an embodiment, the K reference signal resources include an SRS resource set.

[0436] As an embodiment, any reference signal among the K reference signals is one of CSI-RS, SSB or SRS.

[0437] As an embodiment, any two reference signals among the K reference signals cannot be assumed to be QCL.

[0438] As an embodiment, the QCL types corresponding to the K reference signal resources are all QCL-TypeD.

[0439] As an embodiment, the meaning of the sentence that the first resource pool and the first spatial domain relationship set correspond to each other includes: the first spatial domain relationship set includes the K spatial domain relationships; the K spatial domain relationships are respectively used to determine K antenna port groups; and the wireless signal transmitted in the first resource pool is transmitted by the K antenna port groups.

[0440] As a sub-embodiment of the above embodiment, the wireless signal transmitted in the first resource pool is transmitted by the K antenna port groups in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

[0441] As a sub-embodiment of the above embodiment, the K reference signals are respectively sent by the K antenna port groups.

[0442] As an embodiment, an antenna port group includes one or more antenna ports.

[0443] As an embodiment, any two antenna ports belonging to different antenna port groups among the K different antenna port groups cannot be assumed to be QCL.

[0444] As an embodiment, any two antenna ports belonging to different antenna port groups among the K different antenna port groups cannot be assumed to be QCL and correspond to QCL-TypeD.

[0445] As an embodiment, the channel experienced by a wireless signal sent from one antenna port can be inferred from the channel experienced by another wireless signal sent from the antenna port.

[0446] As an embodiment, the channel experienced by a wireless signal sent from one antenna port cannot be inferred from the channel experienced by a wireless signal sent from another antenna port.

[0447] As an embodiment, the sentence "the first resource pool and the first spatial domain relationship set correspond to each other" means: the first spatial domain relationship set includes the K spatial domain relationships; the K spatial domain relationships are respectively used to determine K different spatial domain reception parameters; the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters.

[0448] As a sub-embodiment of the above embodiment, the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

[0449] As a sub-embodiment of the above embodiment, the first node receives the K reference signals using the K different spatial domain reception parameters respectively.

[0450] As an embodiment, the meaning of the sentence that the first resource pool and the first spatial domain relationship set correspond to each other includes: the first spatial domain relationship set includes the K spatial domain relationships; the K spatial domain relationships are respectively used to determine K different spatial domain filters; and the wireless signal transmitted in the first resource pool is received by the K different spatial domain filters.

[0451] As a sub-embodiment of the above embodiment, the wireless signal transmitted in the first resource pool is received by the K different spatial domain filters in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

[0452] As an embodiment, the meaning of the sentence that the first resource pool and the first spatial domain relationship set correspond to each other includes: the first spatial domain relationship set includes the K spatial domain relationships; the K spatial domain relationships are respectively used to determine K different spatial domain filters; and the wireless signal transmitted in the first resource pool is sent by the K different spatial domain filters.

[0453] As a sub-embodiment of the above embodiment, the wireless signal transmitted in the first resource pool is sent in the first resource pool by the K different spatial domain filters in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

[0454] As an embodiment, the K reference signals correspond one-to-one to the K different spatial domain filters; for any given reference signal among the K reference signals, the first node receives or sends the given reference signal using the spatial domain filter corresponding to the given reference signal.

[0455] As an embodiment, the sentence that the first resource pool and the first spatial domain relationship set correspond to each other means that: the first spatial domain relationship set includes the K spatial domain relationships; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools correspond to the K spatial domain relationships respectively.

[0456] As an embodiment, the first resource pool is composed of the K resource sub-pools.

[0457] As an embodiment, any resource sub-pool among the K resource sub-pools occupies a positive integer number of REs in the time-frequency domain.

[0458] As an embodiment, any resource sub-pool among the K resource sub-pools includes a positive integer number of PDCCH candidates.

[0459] As an embodiment, any resource sub-pool among the K resource sub-pools includes a positive integer number of CCEs.

[0460] As an embodiment, any resource sub-pool among the K resource sub-pools includes a positive integer number of REGs.

[0461] As an embodiment, any resource sub-pool among the K resource sub-pools includes time domain resources and frequency domain resources.

[0462] As an embodiment, any resource sub-pool among the K resource sub-pools includes time domain resources, frequency domain resources and code domain resources.

[0463] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources.

[0464] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time domain resources.

[0465] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy the same frequency domain resources.

[0466] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal frequency domain resources.

[0467] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy the same time domain resources.

[0468] As an embodiment, any two resource sub-pools among the K resource sub-pools occupy the same time-frequency resources and different DMRS ports.

[0469] As an embodiment, any two resource sub-blocks among the K resource sub-blocks occupy the same time-frequency resources and different DMRS CDM groups (CDM groups).

[0470] Embodiment 14

[0471] Embodiment 14 illustrates a schematic diagram corresponding to a first resource pool and a first airspace relationship set according to an embodiment of the present application; Fig.14 In embodiment 14, the first spatial domain relationship set includes only one spatial domain relationship, the one spatial domain relationship included in the first spatial domain relationship set is a fourth spatial domain relationship, the fourth spatial domain relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; the first resource pool corresponds to the fourth spatial domain relationship.

[0472] As an embodiment, the third reference signal resource is one of a CSI-RS resource, a CSI-RS resource set, an SSB resource, an SRS resource, or an SRS resource set.

[0473] As an embodiment, the third reference signal is one of CSI-RS, SSB resource or SRS.

[0474] As an embodiment, the meaning of the sentence "the first resource pool and the first spatial domain relationship set correspond to each other" includes: the first spatial domain relationship set only includes the fourth spatial domain relationship; the fourth spatial domain relationship is used to determine the first antenna port group; any wireless signal transmitted in the first resource pool is transmitted by the first antenna port group.

[0475] As a sub-embodiment of the above embodiment, the third reference signal is transmitted by the first antenna port group.

[0476] As an embodiment, the meaning of the sentence "the first resource pool and the first spatial domain relationship set correspond to each other" includes: the first spatial domain relationship set only includes the fourth spatial domain relationship; the fourth spatial domain relationship is used to determine the first spatial domain filter; any wireless signal transmitted in the first resource pool is received or sent by the first spatial domain filter.

[0477] As a sub-embodiment of the above embodiment, the first node receives or sends the third reference signal using the first spatial domain filter.

[0478] Embodiment 15

[0479] Embodiment 15 illustrates a schematic diagram of the relationship between a given resource pool and a given airspace according to an embodiment of the present application; Fig.15 In embodiment 15, the given resource pool corresponds to the given spatial domain relationship; the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for a given reference signal.

[0480] As an embodiment, the given resource pool is the first resource pool, and the given spatial domain relationship is any spatial domain relationship in the first spatial domain relationship set.

[0481] As an embodiment, the given resource pool is any resource sub-pool among the K resource sub-pools, and the given spatial domain relationship is the spatial domain relationship among the K spatial domain relationships corresponding to the given resource pool.

[0482] As an embodiment, the QCL type corresponding to the given reference signal resource is QCL-TypeD.

[0483] As an embodiment, the meaning of the correspondence between the given resource pool and the given spatial domain relationship in the sentence includes: the large-scale characteristics of the channel experienced by the wireless signal transmitted in the given resource pool can be inferred from the large-scale characteristics of the channel experienced by the given reference signal.

[0484] As an embodiment, the meaning of the sentence that the given resource pool and the given spatial domain relationship correspond to each other includes: the spatial domain filter corresponding to the given reference signal is used to determine the spatial domain filter corresponding to the wireless signal transmitted in the given resource pool.

[0485] As an embodiment, the meaning of the correspondence between the given resource pool and the given spatial domain relationship in the sentence includes: the first node uses the same spatial domain filter to receive the given reference signal and to receive the wireless signal in the given resource pool.

[0486] As an embodiment, the meaning of the correspondence between the given resource pool and the given spatial domain relationship in the sentence includes: the first node uses the same spatial domain filter to send the given reference signal and receive the wireless signal in the given resource pool.

[0487] As an embodiment, the meaning of the corresponding relationship between the given resource pool and the given spatial domain in the sentence includes: a DMRS port corresponding to the given resource pool and a transmitting antenna port QCL of the given reference signal.

[0488] As an embodiment, the meaning of the corresponding relationship between the given resource pool and the given spatial domain in the sentence includes: a DMRS port corresponding to the given resource pool and a transmitting antenna port QCL of the given reference signal corresponding to QCL-TypeD.

[0489] Example 16

[0490] Embodiment 16 illustrates a schematic diagram corresponding to each spatial domain relationship in the first signal and the second spatial domain relationship set according to an embodiment of the present application; as shown in the attached Fig.16 shown.

[0491] As an embodiment, the number of spatial domain relationships included in the second spatial domain relationship set is used by the first node to determine the first spatial domain relationship.

[0492] As an embodiment, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1.

[0493] As an embodiment, the number of spatial domain relationships included in the second spatial domain relationship set is greater than 1.

[0494] As an embodiment, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 2.

[0495] As an embodiment, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1 or 2.

[0496] As an embodiment, each spatial domain relationship in the second spatial domain relationship set indicates a reference signal resource.

[0497] As an embodiment, there is a spatial domain relationship in the second spatial domain relationship set indicating two reference signal resources, and the two reference signal resources correspond to different QCL types.

[0498] As an embodiment, the second spatial domain relationship set includes Q spatial domain relationships, where Q is a positive integer greater than 1; the first signal includes Q sub-signals, and the spatial domain relationships corresponding to the Q sub-signals are respectively the Q spatial domain relationships.

[0499] As a sub-embodiment of the above embodiment, Q is equal to 2.

[0500] As a sub-embodiment of the above embodiment, Q is greater than 2.

[0501] As a sub-embodiment of the above embodiment, the Q sub-signals occupy the same time-frequency resources, and the Q sub-signals correspond to different DMRS CDM groups (CDM groups).

[0502] As a sub-embodiment of the above embodiment, any two sub-signals among the Q sub-signals occupy mutually orthogonal time-frequency resources.

[0503] As a sub-embodiment of the above embodiment, any two sub-signals among the Q sub-signals occupy mutually orthogonal time domain resources.

[0504] As a sub-embodiment of the above embodiment, any two sub-signals among the Q sub-signals occupy mutually orthogonal frequency domain resources.

[0505] Embodiment 17

[0506] Embodiment 17 illustrates a schematic diagram of a first information block according to an embodiment of the present application; Fig.17 In embodiment 17, the first information block indicates a first parameter, the first parameter is a higher layer parameter, and the first parameter is used to determine the number of spatial domain relations included in the second spatial domain relation set.

[0507] As an embodiment, the first information block is carried by higher layer signaling.

[0508] As an embodiment, the first information block is carried by RRC signaling.

[0509] As an embodiment, the first information block is carried by MAC CE signaling.

[0510] As an embodiment, the first information block includes information in all or part of a field in an IE.

[0511] As an embodiment, the first information block includes information in all or part of the fields in the PDSCH-Config IE.

[0512] As an embodiment, the first information block and the first signaling are used together to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0513] As an embodiment, the first parameter and the first signaling are used together to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0514] As an embodiment, the first parameter indicates the number of times the first bit block is repeatedly transmitted in the time domain.

[0515] As an embodiment, the first parameter is used to determine the length of the time domain resources occupied by the first signal.

[0516] As an embodiment, the first parameter indicates a retransmission mechanism of the first bit block.

[0517] As an embodiment, the first parameter indicates the number of times the first bit block is repeatedly transmitted.

[0518] As an embodiment, the first parameter indicates whether different repeated transmissions of the first bit block are time division multiplexed, frequency division multiplexed, or space division multiplexed.

[0519] As an embodiment, the first parameter includes information in a higher layer parameter pdsch-AggregationFactor.

[0520] As an embodiment, the first parameter includes information in a higher layer parameter RepSchemeEnabler.

[0521] As an embodiment, if the value of the first parameter belongs to a first parameter value set, the number of spatial domain relationships included in the second spatial domain relationship set is greater than 1; if the value of the first parameter belongs to a second parameter value set, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1; there is no parameter value that belongs to both the first parameter value set and the second parameter value set.

[0522] As a sub-embodiment of the above embodiment, if the value of the first parameter belongs to the first parameter value set, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 2.

[0523] As a sub-embodiment of the above embodiment, any parameter value in the first parameter value set is a positive integer, and any parameter value in the second parameter value set is a positive integer.

[0524] As a sub-embodiment of the above embodiment, any parameter value in the first parameter value set is a positive integer greater than 1.

[0525] As a sub-embodiment of the above embodiment, the second parameter value set only includes 1.

[0526] As an embodiment, if the value of the first parameter belongs to a third parameter value set, the number of spatial domain relationships included in the second spatial domain relationship set is greater than 1; if the value of the first parameter belongs to a fourth parameter value set, the second field in the first signaling is used to determine the number of spatial domain relationships included in the second spatial domain relationship set; there is no parameter value that belongs to both the third parameter value set and the fourth parameter value set.

[0527] As a sub-embodiment of the above embodiment, any parameter value in the third parameter value set and any parameter value in the fourth parameter value set belong to a first candidate parameter value set, and the first candidate parameter value set includes FDMschemeA, FDMSchemeB, TDMschemeA and TDMschemeB.

[0528] As a sub-embodiment of the above embodiment, the third parameter value set includes FDMschemeA, FDMSchemeB and TDMschemeA, and the second parameter value set includes TDMschemeB.

[0529] As a sub-embodiment of the above embodiment, the second domain in the first signaling indicates a second numerical value, the second numerical value indicates the number of repetitions of the first signal in the time domain, and the second numerical value is a positive integer; if the value of the first parameter belongs to the fourth parameter value set and the second numerical value is greater than 1, the number of spatial domain relationships included in the second spatial domain relationship set is greater than 1; if the value of the first parameter belongs to the fourth parameter value set and the second numerical value is equal to 1, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1.

[0530] As a sub-embodiment of the above embodiment, if the value of the first parameter belongs to the fourth parameter value set and the second value is greater than 1, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 2.

[0531] As a sub-embodiment of the above embodiment, the second domain in the first signaling includes all or part of the information in the Timedomain resource assignment domain.

[0532] As a sub-embodiment of the above embodiment, the second field in the first signaling indicates the time domain resources occupied by the first signal.

[0533] As a sub-embodiment of the above embodiment, the parameter RepNumR16 indicates the second value.

[0534] As an embodiment, the number of spatial domain relations included in the first spatial domain relationship set is used to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0535] As an embodiment, the number of spatial domain relations included in the second spatial domain relationship set is equal to the number of spatial domain relations included in the first spatial domain relationship set.

[0536] As an embodiment, the first information block and the number of spatial domain relations included in the first spatial domain relationship set are used together to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0537] As an embodiment, the value of the first parameter and the number of spatial domain relations included in the first spatial domain relationship set are used together to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0538] As an embodiment, if the value of the first parameter belongs to a third parameter value set, the number of spatial domain relationships included in the second spatial domain relationship set is equal to the number of spatial domain relationships included in the first spatial domain relationship set.

[0539] As an embodiment, the first information block is transmitted on PDSCH.

[0540] As an embodiment, the first information block is transmitted on the PSSCH.

[0541] Embodiment 18

[0542] Embodiment 18 illustrates a schematic diagram of a first information block according to an embodiment of the present application; Fig.18 In embodiment 18, the first information block indicates whether a first parameter is configured, the first parameter is a higher layer parameter, and whether the first parameter is configured is used to determine the number of airspace relations included in the second airspace relation set.

[0543] As an embodiment, if the first parameter is configured, the number of spatial domain relationships included in the second spatial domain relationship set is greater than 1.

[0544] As an embodiment, if the first parameter is configured, the value of the first parameter is used to determine the number of spatial domain relations included in the second spatial domain relation set.

[0545] As an embodiment, if the first parameter is not configured, the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1.

[0546] As an embodiment, if the first parameter is not configured, the third field in the first signaling is used to determine the number of spatial domain relations included in the second spatial domain relationship set.

[0547] As a sub-embodiment of the above embodiment, the third field in the first signaling indicates a third numerical value, and the third numerical value is the number of DMRS CDM groups (CDM groups) corresponding to the first signal; the number of spatial domain relationships included in the second spatial domain relationship set is equal to the third numerical value.

[0548] As a sub-embodiment of the above embodiment, the third field includes all or part of the information in the Antennaport(s) field.

[0549] As an embodiment, whether the first parameter is configured and the number of airspace relations included in the first airspace relation set are used together to determine the number of airspace relations included in the second airspace relation set.

[0550] As an embodiment, if the first parameter is not configured, the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set.

[0551] Embodiment 19

[0552] Embodiment 19 illustrates a schematic diagram of a time interval between a first signaling and a first signal being not less than a first threshold according to an embodiment of the present application; Fig.19 shown.

[0553] As an embodiment, the time interval between the first signaling and the first signal is equal to the first threshold.

[0554] As an embodiment, the time interval between the first signaling and the first signal is greater than the first threshold.

[0555] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the start time of the first signaling and the start time of the first signal.

[0556] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the end time of the first signaling and the start time of the first signal.

[0557] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the end time of the first signaling and the end time of the first signal.

[0558] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the starting moment of the time unit to which the first signaling belongs and the starting moment of the time unit to which the first signal belongs.

[0559] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the end moment of the time unit to which the first signaling belongs and the start moment of the time unit to which the first signal belongs.

[0560] As an embodiment, the time interval between the first signaling and the first signal refers to: the time interval between the end moment of the time unit to which the first signaling belongs and the end moment of the time unit to which the first signal belongs.

[0561] As an embodiment, the unit of the time interval between the first signaling and the first signal is the time unit.

[0562] As an embodiment, the unit of the time interval between the first signaling and the first signal is a time slot.

[0563] As an embodiment, the unit of the time interval between the first signaling and the first signal is a span.

[0564] As an embodiment, the unit of the time interval between the first signaling and the first signal is a multi-carrier symbol.

[0565] As an embodiment, the unit of the first threshold is the unit of the time interval between the first signaling and the first signal.

[0566] As an embodiment, the first threshold is a non-negative integer.

[0567] As an embodiment, the first threshold is timeDurationForQCL.

[0568] As an embodiment, the first threshold is configured by RRC signaling.

[0569] As an embodiment, the first threshold is predefined.

[0570] Embodiment 20

[0571] Embodiment 20 illustrates a structural block diagram of a processing device used in a first node device according to an embodiment of the present application; Fig. 20 As shown in the attached Fig. 20In the embodiment, the processing device 2000 in the first node device includes a first receiver 2001 and a first processor 2002.

[0572] In Embodiment 20, a first receiver 2001 receives a first signaling in a first resource pool; and a first processor 2002 receives a first signal.

[0573] In embodiment 20, the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0574] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0575] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0576] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool; the second resource pool corresponds to only one spatial domain relationship, and the time-frequency resources occupied by the first signal are used to determine the second resource pool.

[0577] As an embodiment, the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set, and the first spatial domain relationship belongs to the second spatial domain relationship set; the number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

[0578] As an embodiment, the first processor 2002 receives a first information block; wherein the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set.

[0579] As an embodiment, the time interval between the first signaling and the first signal is not less than a first threshold.

[0580] As an embodiment, the first node device is a user equipment.

[0581] As an embodiment, the first node device is a relay node device.

[0582] As an embodiment, the first receiver 2001 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0583] As an embodiment, the first processor 2002 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0584] Embodiment 21

[0585] Embodiment 21 illustrates a structural block diagram of a processing device used in a second node device according to an embodiment of the present application; Fig.21 As shown in the attached Fig.21 In the embodiment, the processing device 2100 in the second node device includes a first transmitter 2101 and a second processor 2102.

[0586] In Embodiment 21, the first transmitter 2101 sends a first signal in a first resource pool; the second processor 2102 sends a first signal.

[0587] In Example 21, the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relationship set; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship.

[0588] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

[0589] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the time-frequency resources occupied by the first signaling are used to determine the first spatial domain relationship from the K spatial domain relationships.

[0590] As an embodiment, when the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is the spatial domain relationship corresponding to the second resource pool; the second resource pool corresponds to only one spatial domain relationship, and the time-frequency resources occupied by the first signal are used to determine the second resource pool.

[0591] As an embodiment, the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set, and the first spatial domain relationship belongs to the second spatial domain relationship set; the number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

[0592] As an embodiment, the second processor 2102 sends a first information block; wherein the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set.

[0593] As an embodiment, the time interval between the first signaling and the first signal is not less than a first threshold.

[0594] As an embodiment, the second node device is a base station device.

[0595] As an embodiment, the second node device is a user equipment.

[0596] As an embodiment, the second node device is a relay node device.

[0597] As an embodiment, the first transmitter 2101 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0598] As an embodiment, the second processor 2102 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in Embodiment 4.

[0599] A person of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by instructing the relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment 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 software and hardware combination. The user equipment, terminal and UE in the present application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, Internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication, Machine Type Communication) terminals, eMTC (enhanced MTC, enhanced MTC) terminals, data cards, Internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B) NR Node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0600] The above is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node device used for wireless communication, characterized in that: include: A first receiver receives a first signaling in a first resource pool, where the first resource pool includes a CORESET or a search space set, the first signaling includes a DCI, and the first signaling is transmitted on a PDCCH; A first processor receives a first signal, wherein the first signal is transmitted on a PDSCH; The first signaling indicates scheduling information of the first signal, and the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, MCS, DMRS port, HARQ process number, RV or NDI; the first resource pool corresponds to a first spatial domain relationship set, the first spatial domain relationship set includes a positive integer number of spatial domain relationships, and the spatial domain relationship includes a TCI state or a QCL assumption; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship; When the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

2. The first node device according to claim 1, characterized in that: The first resource pool and the first spatial domain relationship set correspond to each other: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the K spatial domain relationships are respectively used to determine K different spatial domain reception parameters; the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools correspond to the K spatial domain relationships respectively; any resource sub-pool among the K resource sub-pools includes a positive integer number of PDCCH candidates; a DMRS port corresponding to a given resource pool and a transmitting antenna port QCL for a given reference signal; the given resource pool is any resource sub-pool among the K resource sub-pools, the given spatial domain relationship is the spatial domain relationship among the K spatial domain relationships corresponding to the given resource pool, the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

3. The first node device according to claim 2, characterized in that: Any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources; Alternatively, a DMRS port corresponding to the given resource pool and a transmit antenna port of the given reference signal are QCL and correspond to QCL-TypeD; Alternatively, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources, and a DMRS port corresponding to the given resource pool and a transmitting antenna port of the given reference signal are QCL and correspond to QCL-TypeD.

4. The first node device according to any one of claims 1 to 3, characterized in that: The correspondence between the first resource pool and the first airspace relationship set includes: the first airspace relationship set includes only one airspace relationship, and the first resource pool corresponds to the one airspace relationship; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes only one spatial domain relationship, and the first resource pool corresponds to the one spatial domain relationship; the one spatial domain relationship included in the first spatial domain relationship set is a fourth spatial domain relationship, the fourth spatial domain relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; the first node receives or sends the third reference signal using a first spatial domain filter; and any wireless signal transmitted in the first resource pool is received by the first spatial domain filter.

5. The first node device according to any one of claims 1 to 3, characterized in that: The K is equal to 2; the first signal carries a bit block, and the bit block is a TB, a CB or a CBG; the signaling format of the first signaling includes DCI format 1_0, DCI format 1_1 or DCI format 1_2; the number of airspace relations included in the first airspace relation set is equal to 1 or 2; the correspondence between the first resource pool and the first airspace relation set is configured by RRC signaling, or the correspondence between the first resource pool and the first airspace relation set is jointly configured by RRC signaling and MAC CE.

6. The first node device according to any one of claims 1 to 3, characterized in that: The first domain indicates one or two TCI states; the signaling to which the first domain belongs includes one or more domains in a DCI; the signal scheduled by the signaling to which the first domain belongs is transmitted on the PDSCH; the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs; Alternatively, the first node is not configured with a higher layer parameter tci-PresentInDCI.

7. The first node device according to any one of claims 1 to 3, characterized in that: The time interval between the first signaling and the first signal is not less than a first threshold; Alternatively, the time interval between the first signaling and the first signal is not less than a first threshold; the fourth information block indicates the first threshold, and the fourth information block includes all or part of the information in the timeDurationForQCL field in the FeatureSetDownlink IE.

8. The first node device according to any one of claims 1 to 3, characterized in that: The second signaling indicates configuration information of the first resource pool, wherein the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates the first spatial domain relationship set, or the second signaling indicates P candidate spatial domain relationships, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relationships; Alternatively, the second signaling indicates configuration information of the first resource pool, where the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates P candidate spatial domain relations, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling.

9. The first node device according to any one of claims 1 to 3, characterized in that: The first spatial domain relationship indicates a first reference signal resource, the first reference signal resource is reserved for a first reference signal; the first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmit antenna port QCL of the first reference signal; Alternatively, the first spatial domain relationship indicates a first reference signal resource and a QCL type corresponding to the first reference signal resource, and the QCL type corresponding to the first reference signal resource is QCL-TypeD; The first reference signal resource is reserved for a first reference signal; The first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmitting antenna port of the first reference signal are QCL and correspond to QCL-TypeD.

10. The first node device according to any one of claims 1 to 3, characterized in that: When the number of spatial domain relations included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

11. The first node device according to any one of claims 1 to 3, characterized in that: The K spatial domain relations correspond to K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; The meaning that the position of the first spatial domain relationship in the K spatial domain relationships is default includes: the first category index corresponding to the first spatial domain relationship is the smallest first category index among the K first category indexes.

12. The first node device according to claim 11, characterized in that: The K first-category indexes include ControlResourceSetId.

13. The first node device according to any one of claims 1 to 3, characterized in that: The first processor receives a first information block; the first signal corresponds to each spatial domain relationship in a second spatial domain relationship set; the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set, and the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1 or 2; a DMRS port of the first signal and a transmit antenna port QCL of a given reference signal, or a DMRS port of the first signal and a transmit antenna port QCL of a given reference signal and correspond to QCL-TypeD; The given spatial domain relationship is any spatial domain relationship in the second set of spatial domain relationships, and the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

14. The first node device according to claim 13, characterized in that: The number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

15. The first node device according to claim 13, characterized in that: When the number of spatial domain relations included in the first spatial domain relationship set and the number of spatial domain relations included in the second spatial domain relationship set are both equal to 1, the first spatial domain relationship is an spatial domain relationship included in the first spatial domain relationship set.

16. The first node device according to claim 13, characterized in that: When the number of airspace relations included in the first airspace relation set is equal to 1 and the number of airspace relations included in the second airspace relation set is greater than 1, the first airspace relation is independent of the first airspace relation set.

17. The first node device according to claim 13, characterized in that: When the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

18. The first node device according to claim 13, characterized in that: When the first spatial domain relationship set includes the K spatial domain relationships, K is a positive integer greater than 1, and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

19. The first node device according to claim 13, characterized in that: The first information block indicates whether a first parameter is configured, the first parameter being a higher layer parameter, and whether the first parameter is configured to be used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the number of airspace relations included in the first airspace relation set is used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the first information block indicates whether a first parameter is configured, the first parameter is a higher-layer parameter, and the first information block and the number of airspace relations included in the first airspace relationship set are used together to determine the number of airspace relations included in the second airspace relationship set.

20. The first node device according to claim 13, characterized in that: The first information block includes information in all or part of the fields in the PDSCH-Config IE, and the first information block is transmitted on the PDSCH.

21. The first node device according to any one of claims 1 to 3, characterized in that: The position of the first spatial domain relationship in the K spatial domain relationships is the default meaning that: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the frontmost spatial domain relationship among the K spatial domain relationships.

22. The first node device according to claim 21, characterized in that: The K spatial domain relations correspond to the K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; the K first-class indexes include TCI-StateId; the second information block indicates the K first-class indexes in sequence; Alternatively, the second signaling indicates configuration information of the first resource pool, and the second signaling is an RRC signaling; the second signaling indicates P candidate airspace relations, where P is a positive integer greater than 1, and any airspace relation in the first airspace relation set is one of the P candidate airspace relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling; the second information block is carried by the third signaling.

23. The first node device according to any one of claims 1 to 3, characterized in that: The K is equal to 2; the K spatial domain relationships respectively indicate K reference signal resources; the K reference signal resources are respectively reserved for K reference signals; the first resource pool corresponds to each of the K spatial domain relationships; the K reference signal resources include CSI-RS resources, or the K reference signal resources include SSB resources.

24. A second node device used for wireless communication, characterized in that: include: A first transmitter sends a first signaling in a first resource pool, where the first resource pool includes a CORESET or a search space set, the first signaling includes a DCI, and the first signaling is transmitted on a PDCCH; A second processor sends a first signal, where the first signal is transmitted on a PDSCH; The first signaling indicates scheduling information of the first signal, and the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, MCS, DMRS port, HARQ process number, RV or NDI; the first resource pool corresponds to a first spatial domain relationship set, the first spatial domain relationship set includes a positive integer number of spatial domain relationships, and the spatial domain relationship includes a TCI state or a QCL assumption; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship; When the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

25. The second node device according to claim 24, characterized in that: The first resource pool and the first spatial domain relationship set correspond to each other: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the K spatial domain relationships are respectively used to determine K different spatial domain reception parameters; the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools correspond to the K spatial domain relationships respectively; any resource sub-pool among the K resource sub-pools includes a positive integer number of PDCCH candidates; a DMRS port corresponding to a given resource pool and a transmitting antenna port QCL for a given reference signal; the given resource pool is any resource sub-pool among the K resource sub-pools, the given spatial domain relationship is the spatial domain relationship among the K spatial domain relationships corresponding to the given resource pool, the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

26. The second node device according to claim 25, characterized in that: Any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources; Alternatively, a DMRS port corresponding to the given resource pool and a transmit antenna port of the given reference signal are QCL and correspond to QCL-TypeD; Alternatively, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources, and a DMRS port corresponding to the given resource pool and a transmitting antenna port of the given reference signal are QCL and correspond to QCL-TypeD.

27. The second node device according to any one of claims 24 to 26, characterized in that: The correspondence between the first resource pool and the first airspace relationship set includes: the first airspace relationship set includes only one airspace relationship, and the first resource pool corresponds to the one airspace relationship; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes only one spatial domain relationship, and the first resource pool corresponds to the one spatial domain relationship; the one spatial domain relationship included in the first spatial domain relationship set is a fourth spatial domain relationship, and the fourth spatial domain relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; the target recipient of the first signaling receives or sends the third reference signal using a first spatial domain filter; and any wireless signal transmitted in the first resource pool is received by the first spatial domain filter.

28. The second node device according to any one of claims 24 to 26, characterized in that: The K is equal to 2; the first signal carries a bit block, and the bit block is a TB, a CB or a CBG; the signaling format of the first signaling includes DCI format 1_0, DCI format 1_1 or DCI format 1_2; the number of airspace relations included in the first airspace relation set is equal to 1 or 2; the correspondence between the first resource pool and the first airspace relation set is configured by RRC signaling, or the correspondence between the first resource pool and the first airspace relation set is jointly configured by RRC signaling and MAC CE.

29. The second node device according to any one of claims 24 to 26, characterized in that: The first domain indicates one or two TCI states; the signaling to which the first domain belongs includes one or more domains in a DCI; the signal scheduled by the signaling to which the first domain belongs is transmitted on the PDSCH; the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs; Alternatively, the target recipient of the first signaling is not configured with a higher layer parameter tci-PresentInDCI.

30. The second node device according to any one of claims 24 to 26, characterized in that: The time interval between the first signaling and the first signal is not less than a first threshold; Alternatively, the time interval between the first signaling and the first signal is not less than a first threshold; the fourth information block indicates the first threshold, and the fourth information block includes all or part of the information in the timeDurationForQCL field in the FeatureSetDownlink IE.

31. The second node device according to any one of claims 24 to 26, characterized in that: The second signaling indicates configuration information of the first resource pool, wherein the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates the first spatial domain relationship set, or the second signaling indicates P candidate spatial domain relationships, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relationships; Alternatively, the second signaling indicates configuration information of the first resource pool, where the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates P candidate spatial domain relations, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling.

32. The second node device according to any one of claims 24 to 26, characterized in that: The first spatial domain relationship indicates a first reference signal resource, the first reference signal resource is reserved for a first reference signal; the first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmit antenna port QCL of the first reference signal; Alternatively, the first spatial domain relationship indicates a first reference signal resource and a QCL type corresponding to the first reference signal resource, and the QCL type corresponding to the first reference signal resource is QCL-TypeD; The first reference signal resource is reserved for a first reference signal; The first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmitting antenna port of the first reference signal are QCL and correspond to QCL-TypeD.

33. The second node device according to any one of claims 24 to 26, characterized in that: When the number of spatial domain relations included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

34. The second node device according to any one of claims 24 to 26, characterized in that: The K spatial domain relations correspond to K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; The meaning that the position of the first spatial domain relationship in the K spatial domain relationships is default includes: the first category index corresponding to the first spatial domain relationship is the smallest first category index among the K first category indexes.

35. The second node device according to claim 34, characterized in that: The K first-category indexes include ControlResourceSetId.

36. The second node device according to any one of claims 24 to 26, characterized in that: The second processor sends a first information block; the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set; the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set, and the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1 or 2; a DMRS port of the first signal and a transmit antenna port QCL of a given reference signal, or a DMRS port of the first signal and a transmit antenna port QCL of a given reference signal and correspond to QCL-TypeD; The given spatial domain relationship is any spatial domain relationship in the second set of spatial domain relationships, and the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

37. The second node device according to claim 36, characterized in that: The number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

38. The second node device according to claim 36, characterized in that: When the number of spatial domain relations included in the first spatial domain relationship set and the number of spatial domain relations included in the second spatial domain relationship set are both equal to 1, the first spatial domain relationship is an spatial domain relationship included in the first spatial domain relationship set.

39. The second node device according to claim 36, characterized in that: When the number of airspace relations included in the first airspace relation set is equal to 1 and the number of airspace relations included in the second airspace relation set is greater than 1, the first airspace relation is independent of the first airspace relation set.

40. The second node device according to claim 36, characterized in that: When the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

41. The second node device according to claim 36, characterized in that: When the first spatial domain relationship set includes the K spatial domain relationships, K is a positive integer greater than 1, and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

42. The second node device according to claim 36, characterized in that: The first information block indicates whether a first parameter is configured, the first parameter being a higher layer parameter, and whether the first parameter is configured to be used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the number of airspace relations included in the first airspace relation set is used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the first information block indicates whether a first parameter is configured, the first parameter is a higher-layer parameter, and the first information block and the number of airspace relations included in the first airspace relationship set are used together to determine the number of airspace relations included in the second airspace relationship set.

43. The second node device according to claim 36, characterized in that: The first information block includes information in all or part of the fields in the PDSCH-Config IE, and the first information block is transmitted on the PDSCH.

44. The second node device according to any one of claims 24 to 26, characterized in that: The position of the first spatial domain relationship in the K spatial domain relationships is the default meaning that: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the frontmost spatial domain relationship among the K spatial domain relationships.

45. The second node device according to claim 44, characterized in that: The K spatial domain relations correspond to the K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; the K first-class indexes include TCI-StateId; the second information block indicates the K first-class indexes in sequence; Alternatively, the second signaling indicates configuration information of the first resource pool, and the second signaling is an RRC signaling; the second signaling indicates P candidate airspace relations, where P is a positive integer greater than 1, and any airspace relation in the first airspace relation set is one of the P candidate airspace relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling; the second information block is carried by the third signaling.

46. ​​The second node device according to any one of claims 24 to 26, characterized in that: The K is equal to 2; the K spatial domain relationships respectively indicate K reference signal resources; the K reference signal resources are respectively reserved for K reference signals; the first resource pool corresponds to each of the K spatial domain relationships; the K reference signal resources include CSI-RS resources, or the K reference signal resources include SSB resources.

47. A method in a first node for wireless communication, characterized in that: include: Receiving first signaling in a first resource pool, the first resource pool including a CORESET or a search space set, the first signaling including a DCI, and the first signaling being transmitted on a PDCCH; receiving a first signal, wherein the first signal is transmitted on a PDSCH; The first signaling indicates scheduling information of the first signal, and the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, MCS, DMRS port, HARQ process number, RV or NDI; the first resource pool corresponds to a first spatial domain relationship set, the first spatial domain relationship set includes a positive integer number of spatial domain relationships, and the spatial domain relationship includes a TCI state or a QCL assumption; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship; When the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

48. The method according to claim 47, characterized in that The first resource pool and the first spatial domain relationship set correspond to each other: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the K spatial domain relationships are respectively used to determine K different spatial domain reception parameters; the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools correspond to the K spatial domain relationships respectively; any resource sub-pool among the K resource sub-pools includes a positive integer number of PDCCH candidates; a DMRS port corresponding to a given resource pool and a transmitting antenna port QCL for a given reference signal; the given resource pool is any resource sub-pool among the K resource sub-pools, the given spatial domain relationship is the spatial domain relationship among the K spatial domain relationships corresponding to the given resource pool, the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

49. The method according to claim 48, characterized in that Any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources; Alternatively, a DMRS port corresponding to the given resource pool and a transmit antenna port of the given reference signal are QCL and correspond to QCL-TypeD; Alternatively, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources, and a DMRS port corresponding to the given resource pool and a transmitting antenna port of the given reference signal are QCL and correspond to QCL-TypeD.

50. The method according to any one of claims 47 to 49, characterized in that The correspondence between the first resource pool and the first airspace relationship set includes: the first airspace relationship set includes only one airspace relationship, and the first resource pool corresponds to the one airspace relationship; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes only one spatial domain relationship, and the first resource pool corresponds to the one spatial domain relationship; the one spatial domain relationship included in the first spatial domain relationship set is a fourth spatial domain relationship, the fourth spatial domain relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; the first node receives or sends the third reference signal using a first spatial domain filter; and any wireless signal transmitted in the first resource pool is received by the first spatial domain filter.

51. The method according to any one of claims 47 to 49, characterized in that The K is equal to 2; the first signal carries a bit block, and the bit block is a TB, a CB or a CBG; the signaling format of the first signaling includes DCI format 1_0, DCI format 1_1 or DCI format 1_2; the number of airspace relations included in the first airspace relation set is equal to 1 or 2; the correspondence between the first resource pool and the first airspace relation set is configured by RRC signaling, or the correspondence between the first resource pool and the first airspace relation set is jointly configured by RRC signaling and MAC CE.

52. The method according to any one of claims 47 to 49, characterized in that The first domain indicates one or two TCI states; the signaling to which the first domain belongs includes one or more domains in a DCI; the signal scheduled by the signaling to which the first domain belongs is transmitted on the PDSCH; the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs; Alternatively, the first node is not configured with a higher layer parameter tci-PresentInDCI.

53. The method according to any one of claims 47 to 49, characterized in that The time interval between the first signaling and the first signal is not less than a first threshold; Alternatively, the time interval between the first signaling and the first signal is not less than a first threshold; the fourth information block indicates the first threshold, and the fourth information block includes all or part of the information in the timeDurationForQCL field in the FeatureSetDownlink IE.

54. The method according to any one of claims 47 to 49, characterized in that The second signaling indicates configuration information of the first resource pool, wherein the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates the first spatial domain relationship set, or the second signaling indicates P candidate spatial domain relationships, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relationships; Alternatively, the second signaling indicates configuration information of the first resource pool, where the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates P candidate spatial domain relations, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling.

55. The method according to any one of claims 47 to 49, characterized in that The first spatial domain relationship indicates a first reference signal resource, the first reference signal resource is reserved for a first reference signal; the first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmit antenna port QCL of the first reference signal; Alternatively, the first spatial domain relationship indicates a first reference signal resource and a QCL type corresponding to the first reference signal resource, and the QCL type corresponding to the first reference signal resource is QCL-TypeD; The first reference signal resource is reserved for a first reference signal; The first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmitting antenna port of the first reference signal are QCL and correspond to QCL-TypeD.

56. The method according to any one of claims 47 to 49, characterized in that When the number of spatial domain relations included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

57. The method according to any one of claims 47 to 49, characterized in that The K spatial domain relations correspond to K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; The meaning that the position of the first spatial domain relationship in the K spatial domain relationships is default includes: the first category index corresponding to the first spatial domain relationship is the smallest first category index among the K first category indexes.

58. The method according to claim 57, characterized in that The K first-category indexes include ControlResourceSetId.

59. The method according to any one of claims 47 to 49, characterized in that include: receiving a first information block; Among them, the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set; the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set, and the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1 or 2; a DMRS port of the first signal and a transmitting antenna port QCL of a given reference signal, or a DMRS port of the first signal and a transmitting antenna port QCL of a given reference signal correspond to QCL-TypeD; the given spatial domain relationship is any spatial domain relationship in the second spatial domain relationship set, and the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

60. The method according to claim 59, characterized in that The number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

61. The method according to claim 59, characterized in that When the number of spatial domain relations included in the first spatial domain relationship set and the number of spatial domain relations included in the second spatial domain relationship set are both equal to 1, the first spatial domain relationship is an spatial domain relationship included in the first spatial domain relationship set.

62. The method according to claim 59, characterized in that When the number of airspace relations included in the first airspace relation set is equal to 1 and the number of airspace relations included in the second airspace relation set is greater than 1, the first airspace relation is independent of the first airspace relation set.

63. The method according to claim 59, characterized in that When the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

64. The method according to claim 59, characterized in that When the first spatial domain relationship set includes the K spatial domain relationships, K is a positive integer greater than 1, and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

65. The method according to claim 59, characterized in that The first information block indicates whether a first parameter is configured, the first parameter being a higher layer parameter, and whether the first parameter is configured to be used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the number of airspace relations included in the first airspace relation set is used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the first information block indicates whether a first parameter is configured, the first parameter is a higher-layer parameter, and the first information block and the number of airspace relations included in the first airspace relationship set are used together to determine the number of airspace relations included in the second airspace relationship set.

66. The method of claim 59, wherein: The first information block includes information in all or part of the fields in the PDSCH-Config IE, and the first information block is transmitted on the PDSCH.

67. The method according to any one of claims 47 to 49, characterized in that The position of the first spatial domain relationship in the K spatial domain relationships is the default meaning that: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the frontmost spatial domain relationship among the K spatial domain relationships.

68. The method according to claim 67, characterized in that The K spatial domain relations correspond to the K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; the K first-class indexes include TCI-StateId; the second information block indicates the K first-class indexes in sequence; Alternatively, the second signaling indicates configuration information of the first resource pool, and the second signaling is an RRC signaling; the second signaling indicates P candidate airspace relations, where P is a positive integer greater than 1, and any airspace relation in the first airspace relation set is one of the P candidate airspace relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling; the second information block is carried by the third signaling.

69. The method according to any one of claims 47 to 49, characterized in that The K is equal to 2; the K spatial domain relationships respectively indicate K reference signal resources; the K reference signal resources are respectively reserved for K reference signals; the first resource pool corresponds to each of the K spatial domain relationships; the K reference signal resources include CSI-RS resources, or the K reference signal resources include SSB resources.

70. A method in a second node for wireless communication, characterized in that: include: Sending a first signaling in a first resource pool, where the first resource pool includes a CORESET or a search space set, the first signaling includes a DCI, and the first signaling is transmitted on a PDCCH; Sending a first signal, where the first signal is transmitted on a PDSCH; The first signaling indicates scheduling information of the first signal, and the scheduling information of the first signal includes one or more of occupied time domain resources, occupied frequency domain resources, MCS, DMRS port, HARQ process number, RV or NDI; the first resource pool corresponds to a first spatial domain relationship set, the first spatial domain relationship set includes a positive integer number of spatial domain relationships, and the spatial domain relationship includes a TCI state or a QCL assumption; the first signaling does not include a first domain, and the first domain indicates the spatial domain relationship corresponding to the signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial domain relationship, and the number of spatial domain relationships included in the first spatial domain relationship set is used to determine the first spatial domain relationship; When the first spatial domain relationship set includes K spatial domain relationships and K is a positive integer greater than 1, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

71. The method according to claim 70, characterized in that The first resource pool and the first spatial domain relationship set correspond to each other: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the K spatial domain relationships are respectively used to determine K different spatial domain reception parameters; the wireless signal transmitted in the first resource pool is received by the K different spatial domain reception parameters; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes the K spatial domain relationships, where K is equal to 2; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools correspond to the K spatial domain relationships respectively; any resource sub-pool among the K resource sub-pools includes a positive integer number of PDCCH candidates; a DMRS port corresponding to a given resource pool and a transmitting antenna port QCL for a given reference signal; the given resource pool is any resource sub-pool among the K resource sub-pools, the given spatial domain relationship is the spatial domain relationship among the K spatial domain relationships corresponding to the given resource pool, the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

72. The method according to claim 71, characterized in that Any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources; Alternatively, a DMRS port corresponding to the given resource pool and a transmit antenna port of the given reference signal are QCL and correspond to QCL-TypeD; Alternatively, any two resource sub-pools among the K resource sub-pools occupy mutually orthogonal time-frequency resources, and a DMRS port corresponding to the given resource pool and a transmitting antenna port of the given reference signal are QCL and correspond to QCL-TypeD.

73. The method according to any one of claims 70 to 72, characterized in that The correspondence between the first resource pool and the first airspace relationship set includes: the first airspace relationship set includes only one airspace relationship, and the first resource pool corresponds to the one airspace relationship; Alternatively, the correspondence between the first resource pool and the first spatial domain relationship set includes: the first spatial domain relationship set includes only one spatial domain relationship, and the first resource pool corresponds to the one spatial domain relationship; the one spatial domain relationship included in the first spatial domain relationship set is a fourth spatial domain relationship, and the fourth spatial domain relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; the target recipient of the first signaling receives or sends the third reference signal using a first spatial domain filter; and any wireless signal transmitted in the first resource pool is received by the first spatial domain filter.

74. The method according to any one of claims 70 to 72, characterized in that The K is equal to 2; the first signal carries a bit block, and the bit block is a TB, a CB or a CBG; the signaling format of the first signaling includes DCI format 1_0, DCI format 1_1 or DCI format 1_2; the number of airspace relations included in the first airspace relation set is equal to 1 or 2; the correspondence between the first resource pool and the first airspace relation set is configured by RRC signaling, or the correspondence between the first resource pool and the first airspace relation set is jointly configured by RRC signaling and MAC CE.

75. The method according to any one of claims 70 to 72, characterized in that The first domain indicates one or two TCI states; the signaling to which the first domain belongs includes one or more domains in a DCI; the signal scheduled by the signaling to which the first domain belongs is transmitted on the PDSCH; the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs; Alternatively, the target recipient of the first signaling is not configured with a higher layer parameter tci-PresentInDCI.

76. The method according to any one of claims 70 to 72, characterized in that The time interval between the first signaling and the first signal is not less than a first threshold; Alternatively, the time interval between the first signaling and the first signal is not less than a first threshold; the fourth information block indicates the first threshold, and the fourth information block includes all or part of the information in the timeDurationForQCL field in the FeatureSetDownlink IE.

77. The method according to any one of claims 70 to 72, characterized in that The second signaling indicates configuration information of the first resource pool, wherein the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates the first spatial domain relationship set, or the second signaling indicates P candidate spatial domain relationships, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relationships; Alternatively, the second signaling indicates configuration information of the first resource pool, where the configuration information includes one or more of occupied time domain resources, occupied frequency domain resources, occupied code domain resources, DMRS scrambling sequence, CCE to REG mapping type, CCE aggregation level, number of PDCCH candidates, search space type, or PDCCH format; the second signaling is an RRC signaling; the second signaling indicates P candidate spatial domain relations, where P is a positive integer greater than 1, and any spatial domain relationship in the first spatial domain relationship set is one of the P candidate spatial domain relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling.

78. The method according to any one of claims 70 to 72, characterized in that The first spatial domain relationship indicates a first reference signal resource, the first reference signal resource is reserved for a first reference signal; the first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmit antenna port QCL of the first reference signal; Alternatively, the first spatial domain relationship indicates a first reference signal resource and a QCL type corresponding to the first reference signal resource, and the QCL type corresponding to the first reference signal resource is QCL-TypeD; The first reference signal resource is reserved for a first reference signal; The first reference signal resource includes a CSI-RS resource or an SSB resource; a DMRS port of the first signal and a transmitting antenna port of the first reference signal are QCL and correspond to QCL-TypeD.

79. The method according to any one of claims 70 to 72, characterized in that When the number of spatial domain relations included in the first spatial domain relationship set is equal to 1, the first spatial domain relationship is a spatial domain relationship included in the first spatial domain relationship set.

80. The method according to any one of claims 70 to 72, characterized in that The K spatial domain relations correspond to K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; The meaning that the position of the first spatial domain relationship in the K spatial domain relationships is default includes: the first category index corresponding to the first spatial domain relationship is the smallest first category index among the K first category indexes.

81. The method according to claim 80, characterized in that The K first-category indexes include ControlResourceSetId.

82. The method according to any one of claims 70 to 72, characterized in that include: Sending a first information block; Among them, the first signal corresponds to each spatial domain relationship in the second spatial domain relationship set; the first information block is used to determine the number of spatial domain relationships included in the second spatial domain relationship set, and the number of spatial domain relationships included in the second spatial domain relationship set is equal to 1 or 2; a DMRS port of the first signal and a transmitting antenna port QCL of a given reference signal, or a DMRS port of the first signal and a transmitting antenna port QCL of a given reference signal correspond to QCL-TypeD; the given spatial domain relationship is any spatial domain relationship in the second spatial domain relationship set, and the given spatial domain relationship indicates a given reference signal resource, and the given reference signal resource is reserved for the given reference signal.

83. The method according to claim 82, characterized in that The number of spatial domain relationships included in the second spatial domain relationship set is used to determine the first spatial domain relationship.

84. The method according to claim 82, characterized in that When the number of spatial domain relations included in the first spatial domain relationship set and the number of spatial domain relations included in the second spatial domain relationship set are both equal to 1, the first spatial domain relationship is an spatial domain relationship included in the first spatial domain relationship set.

85. The method according to claim 82, characterized in that When the number of airspace relations included in the first airspace relation set is equal to 1 and the number of airspace relations included in the second airspace relation set is greater than 1, the first airspace relation is independent of the first airspace relation set.

86. The method according to claim 82, characterized in that When the number of airspace relations included in the first airspace relation set is greater than 1 and the number of airspace relations included in the second airspace relation set is equal to the number of airspace relations included in the first airspace relation set, the second airspace relation set is the first airspace relation set.

87. The method according to claim 82, characterized in that When the first spatial domain relationship set includes the K spatial domain relationships, K is a positive integer greater than 1, and the number of spatial domain relationships included in the second spatial domain relationship set is less than K, the first spatial domain relationship is one of the K spatial domain relationships; the position of the first spatial domain relationship in the K spatial domain relationships is default.

88. The method according to claim 82, characterized in that The first information block indicates whether a first parameter is configured, the first parameter being a higher layer parameter, and whether the first parameter is configured to be used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the number of airspace relations included in the first airspace relation set is used to determine the number of airspace relations included in the second airspace relation set; Alternatively, the first information block indicates whether a first parameter is configured, the first parameter is a higher-layer parameter, and the first information block and the number of airspace relations included in the first airspace relationship set are used together to determine the number of airspace relations included in the second airspace relationship set.

89. The method according to claim 82, characterized in that The first information block includes information in all or part of the fields in the PDSCH-Config IE, and the first information block is transmitted on the PDSCH.

90. The method according to any one of claims 70 to 72, characterized in that The position of the first spatial domain relationship in the K spatial domain relationships is the default meaning that: the second information block indicates the K spatial domain relationships in sequence, and the first spatial domain relationship is the frontmost spatial domain relationship among the K spatial domain relationships.

91. The method according to claim 90, characterized in that The K spatial domain relations correspond to the K first-class indexes one by one, and the K first-class indexes are non-negative integers respectively; the K first-class indexes are used to determine the first spatial domain relation from the K spatial domain relations; the K first-class indexes include TCI-StateId; the second information block indicates the K first-class indexes in sequence; Alternatively, the second signaling indicates configuration information of the first resource pool, and the second signaling is an RRC signaling; the second signaling indicates P candidate airspace relations, where P is a positive integer greater than 1, and any airspace relation in the first airspace relation set is one of the P candidate airspace relations; The third signaling activates each spatial domain relationship in the first set of spatial domain relationships from the P candidate spatial domain relationships; The third signaling is a MAC CE signaling; the second information block is carried by the third signaling.

92. The method according to any one of claims 70 to 72, characterized in that The K is equal to 2; the K spatial domain relationships respectively indicate K reference signal resources; the K reference signal resources are respectively reserved for K reference signals; the first resource pool corresponds to each of the K spatial domain relationships; the K reference signal resources include CSI-RS resources, or the K reference signal resources include SSB resources.

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