CN115225237A

CN115225237A - Method and apparatus in a node used for wireless communication

Info

Publication number: CN115225237A
Application number: CN202210649231.XA
Authority: CN
Inventors: 吴克颖; 张晓博
Original assignee: Shanghai Langbo Communication Technology Co Ltd
Current assignee: Shanghai Langbo Communication Technology Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2022-10-21
Also published as: CN113541891B; CN113541891A

Abstract

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

Description

Method and apparatus in a node used for wireless communication

The present application is a divisional application of the following original applications:

application date of the original application: 2020, 04 and 15 days

- -application number of the original application: 202010293567.8

The invention of the original application is named: method and apparatus in a node used for wireless communication

Technical Field

The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly, to a transmission method and apparatus for wireless signals in a wireless communication system supporting a cellular network.

Background

The multi-antenna technology is a key technology in 3GPP (3 rd 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 a communication node, such as a base station or a UE (User Equipment). The multiple antennas form a beam pointing to a specific direction through beam forming to improve communication quality. When multiple antennas belong to multiple TRP (transmit Receiver Point)/panel, additional diversity gain can be obtained by using spatial difference between different TRPs/panels. The beams formed by multi-antenna beamforming are generally narrow, and the beams of both communication parties need to be aligned for effective communication. When the transmission/reception beams are out of synchronization due to UE movement, the communication quality will be greatly reduced or even impossible. In NR R (release) 15 and R16, a beam of a data channel may be indicated by scheduling signaling or associated with a beam of a default CORESET (COntrol REsource SET).

Disclosure of Invention

In NR R17 and its subsequent versions, multi-TRP/panel based transmission schemes will continue to evolve and be enhanced, with an important aspect for enhancing 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 are to be associated is a problem to be solved. In view of the above, the present application discloses a solution. It should be noted that, although the above description adopts the multi-TRP/panel transmission scenario as an example, the present application is also applicable to other scenarios such as single-TRP/panel transmission, carrier aggregation (carrier aggregation), or internet of things (V2X) communication scenario, and achieves similar technical effects in the multi-TRP/panel transmission scenario. Furthermore, the adoption of a unified solution for different scenarios (including but not limited to multiple TRP/panel transmissions, single TRP/panel transmissions, carrier aggregation, and internet of things) also helps to reduce hardware complexity and cost. Without conflict, embodiments and features in embodiments in a first node of the present application may be applied to a second node and vice versa. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

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

receiving first signaling in a first resource pool;

receiving a first signal;

wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and a number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

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

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

As an embodiment, the benefits of the above method include: the multi-TRP/panel transmission of the physical layer control channel is realized, and the transmission reliability of the physical layer control channel is improved.

As an example, the benefits of the above method include: and the spatial relation of the data channel is indicated in an implicit mode, so that the signaling overhead is saved.

According to an aspect of the present application, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; the position of the first spatial relationship in the K spatial relationships is a default.

As an embodiment, the above method has the advantages of implicitly indicating the first spatial relationship, saving signaling overhead.

According to an aspect of the present application, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; the time frequency resources occupied by the first signaling are used to determine the first spatial relationship from the K spatial relationships.

According to one aspect of the present application, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is a spatial relationship corresponding to a second resource pool; the second resource pool only corresponds to one airspace relation, and the time-frequency resource occupied by the first signal is used for determining the second resource pool.

According to one aspect of the present application, the first signal corresponds to each spatial relationship in a second set of spatial relationships to which the first spatial relationship belongs; the number of spatial relationships comprised by the second set of spatial relationships is used to determine the first spatial relationship.

According to one aspect of the application, the method is characterized by comprising the following steps:

receiving a first information block;

wherein the first information block is used to determine the number of spatial relationships included in the second set of spatial relationships.

According to one aspect of the present application, a time interval between the first signaling and the first signal is not less than a first threshold.

According to one aspect of the application, the first node is a user equipment.

According to an aspect of the application, it is characterized in that the first node is a relay node.

The application discloses a method in a second node used for wireless communication, which is characterized by comprising the following steps:

transmitting a first signaling in a first resource pool;

transmitting a first signal;

wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and the number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

According to an aspect of the present application, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; the time frequency resource occupied by the first signaling is used for determining the first spatial relationship from the K spatial relationships.

According to an aspect of the present application, the first signal corresponds to each spatial relationship of a second set of spatial relationships to which the first spatial relationship belongs; the number of spatial relationships comprised by the second set of spatial relationships is used to determine the first spatial relationship.

transmitting a first information block;

According to an aspect of the application, characterized in that the second node is a base station.

According to one aspect of the application, the second node is a user equipment.

According to an aspect of the application, it is characterized in that the second node is a relay node.

The application discloses a first node device used for wireless communication, characterized by comprising:

a first receiver that receives first signaling in a first resource pool;

a first processor receiving a first signal;

The present application discloses a second node device used for wireless communication, comprising:

a first transmitter to transmit a first signaling in a first resource pool;

a second processor to transmit the first signal;

As an example, compared with the conventional scheme, the method has the following advantages:

multi-TRP/panel transmission of the physical layer control channel is realized, and the transmission reliability of the physical layer control channel is improved;

-solving the beam association problem between data and control channels when physical layer control channels are transmitted with multiple TRP/panel;

signaling overhead is saved by implicitly indicating the spatial relationship of the data channel.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof with reference to the accompanying drawings in which:

fig. 1 shows a flow chart of a first signaling and a first signal according to an embodiment of the application;

FIG. 2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

figure 3 shows a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application;

FIG. 4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

FIG. 5 shows a flow diagram of a transmission according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a first spatial relationship according to an embodiment of the present application;

FIG. 7 shows a diagram of a given signal and a given spatial relationship correspondence according to an embodiment of the present application;

FIG. 8 shows a schematic diagram of a first set of spatial relationships comprising a number of spatial relationships used to determine the first spatial relationship according to an embodiment of the application;

FIG. 9 shows a schematic diagram of a first set of spatial relationships comprising a number of spatial relationships used to determine the first spatial relationship according to an embodiment of the application;

FIG. 10 illustrates a schematic diagram in which the number of spatial relationships comprised by the first set of spatial relationships is used to determine the first spatial relationship according to one embodiment of the present application;

FIG. 11 shows a schematic diagram of a first set of spatial relationships comprising a number of spatial relationships used to determine the first spatial relationship according to an embodiment of the application;

fig. 12 is a schematic diagram illustrating that time-frequency resources occupied by a first signal are used for determining a second resource pool according to an embodiment of the present application;

FIG. 13 illustrates a schematic diagram of a first resource pool and a first set of spatial relationships corresponding according to an embodiment of the application;

FIG. 14 illustrates a schematic diagram of a first resource pool and a first set of spatial relationships corresponding according to an embodiment of the application;

FIG. 15 illustrates a schematic diagram of a given resource pool and a given spatial relationship correspondence according to an embodiment of the present application;

FIG. 16 illustrates a schematic diagram of a correspondence of each of a first signal and a second set of spatial relationships according to an embodiment of the present application;

FIG. 17 shows a schematic diagram of a first information block according to an embodiment of the application;

FIG. 18 shows a schematic diagram of a first information block according to an embodiment of the present application;

figure 19 shows a schematic diagram of a time interval between a first signaling and a first signal not being less than a first threshold value according to an embodiment of the present application;

FIG. 20 shows a block diagram of a processing apparatus for use in a first node device according to an embodiment of the present application;

fig. 21 shows a block diagram of a processing arrangement for a device in a second node according to an embodiment of the application.

Detailed Description

The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments in the present application can be arbitrarily combined with each other without conflict.

Example 1

Embodiment 1 illustrates a first signaling and a flow chart of a first signal according to an embodiment of the present application, as shown in fig. 1. In 100 shown in fig. 1, each block represents a step. In particular, the order of steps in blocks does not represent a particular chronological relationship between the various steps.

In embodiment 1, the first node in this application receives a first signaling in a first resource pool in step 101; a first signal is received in step 102. Wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and a number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

For one embodiment, the first resource pool includes time domain resources.

For one embodiment, the first resource pool includes frequency domain resources.

For one embodiment, the first resource pool includes code domain resources.

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

As an embodiment, the first Resource pool occupies a positive integer number of REs (Resource elements) in the time-frequency domain.

As an embodiment, one RE occupies one multicarrier symbol in the time domain and one subcarrier in the frequency domain.

As an embodiment, the multicarrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

As an embodiment, the multicarrier symbol is an SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbol.

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

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

As an embodiment, the first Resource pool occupies a positive integer number of PRBs (Physical Resource blocks) in the frequency domain.

As an embodiment, the first resource pool occupies a positive integer number of multicarrier symbols in the time domain.

As an embodiment, the first resource pool occupies a positive integer number of slots (slots) in a time domain.

As an embodiment, the first resource pool occurs only once in the time domain.

As an embodiment, the first resource pool occurs multiple times in the time domain.

As an embodiment, the first resource pool occurs periodically in the time domain.

As an embodiment, the first resource pool is non-periodically present in the time domain.

As an embodiment, the first REsource pool comprises a CORESET (countrol REsource SET).

As one embodiment, the first resource pool comprises a search space (search space).

As one embodiment, the first resource pool includes a set of search spaces (search space sets).

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

As an embodiment, the first resource pool includes a plurality of CCEs (Control Channel elements).

For one embodiment, the first Resource pool includes a plurality of REGs (Resource Element groups).

As one embodiment, the first signaling includes physical layer signaling.

As an embodiment, the first signaling comprises dynamic signaling.

As an embodiment, the first signaling comprises layer 1 (L1) signaling.

As an embodiment, the first signaling comprises layer 1 (L1) control signaling.

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

As an embodiment, the first signaling includes one or more fields (fields) in one DCI.

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

As an embodiment, the first signaling includes DCI for a downlink grant (downlink link grant).

As an embodiment, the first signaling includes a DCI for Downlink Semi-Persistent Scheduling Assignment (Downlink Semi-Persistent Scheduling Assignment) activation.

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

As an embodiment, the first signaling includes MAC CE (media access Control layer Control Element) signaling.

As an embodiment, the signaling format of the first signaling includes DCI format1 \u0.

As an embodiment, the signaling format of the first signaling includes DCI format1 \u1.

As an embodiment, the signaling format of the first signaling includes DCI format1 \u2.

As an embodiment, the higher layer parameter tci-PresentInDCI with which the first node is configured is not activated (enabled).

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

As an embodiment, the configured higher layer parameter tci-PresentInDCI-format 1_2 of the first node is not activated (enabled).

As an embodiment, the first node is not configured with the higher layer parameter tci-PresentInDCI-format dciformat1_2.

For one embodiment, the first signal comprises a baseband signal.

As one embodiment, the first signal comprises a wireless signal.

For one embodiment, the first signal comprises a radio frequency signal.

As an embodiment, the first signal carries one bit Block, which is one TB (transport Block), one CB (Code Block) or one CBG (Code Block group).

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 ports, HARQ (Hybrid Automatic Repeat reQuest) process numbers (process numbers), RV (Redundancy Version) or NDI (New Data Indicator).

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

As one embodiment, the first signaling implicitly indicates the scheduling information of the first signal.

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.

As an embodiment, the first signal only occurs once in the time domain.

As an embodiment, the first signal occurs multiple times in the time domain.

As one embodiment, the first signal includes one transmission of the first block of bits.

As one embodiment, the first signal includes a plurality of repeated transmissions of the first block of bits.

For one embodiment, the first set of spatial relationships comprises a positive integer number of spatial relationships.

As one embodiment, the first set of spatial relationships includes the number of spatial relationships equal to 1.

For one embodiment, the first set of spatial relationships includes the number of spatial relationships greater than 1.

As one embodiment, the first set of spatial relationships includes the number of spatial relationships equal to 2.

As one embodiment, the first set of spatial relationships includes the number of spatial relationships equal to 1 or 2.

As one embodiment, the spatial relationship includes a TCI (Transmission Configuration Indicator) state (state).

For one embodiment, the spatial domain relationship includes a QCL (Quasi Co-Location) hypothesis (assignment).

For one embodiment, the spatial relationship includes QCL parameters.

For one embodiment, the spatial domain relationship comprises a QCL relationship.

As one embodiment, the spatial relationship comprises a spatial setting.

For one embodiment, the Spatial relationship comprises Spatial relationship.

As one embodiment, the spatial relationship includes a spatial domain filter.

As one embodiment, the spatial relationship comprises a spatial domain transmissionfilter (spatial domain transmissionfilter).

As one embodiment, the spatial relationship includes a spatial domain receive filter (spatial domain receive filter).

As one embodiment, the Spatial relationship includes a Spatial Tx parameter.

As one embodiment, the Spatial relationship includes Spatial Rx parameters.

As one embodiment, the spatial relationship includes large-scale properties.

As an embodiment, the large-scale characteristics (large-scale properties) include one or more of { delay spread (delay spread), doppler spread (Doppler spread), doppler shift (Doppler shift), average delay (average delay) }.

As an embodiment, the correspondence between the first resource pool and the first set of spatial domain relationships is configured by RRC signaling.

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

As an embodiment, the correspondence between the first resource pool and the first set of spatial domain relationships is configured jointly by RRC signaling and MAC CE.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first resource pool corresponds to each spatial relationship in the first set of spatial relationships.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first spatial domain relation set only comprises one spatial domain relation, and the first resource pool corresponds to the spatial domain relation.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first spatial domain relation set only comprises one spatial domain relation, and the first resource pool only corresponds to the one spatial domain relation.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first set of spatial relationships includes a plurality of spatial relationships, and the first resource pool corresponds to each of the plurality of spatial relationships.

As an embodiment, the meaning corresponding to the first resource pool and the first spatial relationship set of the sentence includes: the first spatial domain relationship set comprises a plurality of spatial domain relationships, and the first resource pool corresponds to a plurality of activated spatial domain relationships at the same time.

For one embodiment, each spatial relationship in the first set of spatial relationships is an activated spatial relationship corresponding to the first resource pool.

For one embodiment, any spatial relationship in the first set of spatial relationships indicates one reference signal resource.

As a sub-embodiment of the foregoing embodiment, the QCL type corresponding to the reference signal resource is QCL-type.

As a sub-embodiment of the above-mentioned embodiment, the one Reference Signal resource is one of a CSI-RS (Channel State Information-Reference Signal) resource (resource), an SSB (synchronization Signal/physical broadcast Channel Block) resource or an SRS (Sounding Reference Signal) resource.

As an embodiment, when one spatial relationship in the first spatial relationship set indicates two reference signal resources, the two reference signal resources respectively correspond to two different QCL types.

As a sub-embodiment of the above embodiment, the two different QCL types are QCL-TypeD and QCL-TypeA, respectively.

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

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

For one embodiment, the first field indicates a TCI status (state).

As an embodiment, the first field indicates one or two TCI states (states).

For one embodiment, the first field indicates a TCI codepoint (codepoint).

As an embodiment, the signaling to which the first domain belongs comprises layer 1 (L1) signaling.

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

As an embodiment, the signaling to which the first domain belongs includes DCI for downlink grant.

As an embodiment, the signal scheduled by the signaling to which the first domain belongs comprises a baseband signal.

As one embodiment, the signal scheduled by the signaling to which the first domain belongs comprises a wireless signal.

As an embodiment, the signal scheduled by the signaling to which the first domain belongs is transmitted on a PDSCH (Physical Downlink Shared CHannel).

As an embodiment, the signal scheduled by the signaling to which the first domain belongs corresponds to a transmission Channel is a DL-SCH (DownLink Shared Channel).

For one embodiment, the first domain indicates a TCI status corresponding to a signal scheduled by signaling to which the first domain belongs.

Example 2

Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in fig. 2.

Fig. 2 illustrates a network architecture 200 of LTE (Long-Term Evolution), LTE-a (Long-Term Evolution advanced), and future 5G systems. The network architecture 200 of LTE, LTE-a and future 5G systems is referred to as EPS (Evolved Packet System) 200. The 5GNR or LTE network architecture 200 may be referred to as a 5GS (5G System)/EPS (Evolved Packet System) 200 or some other suitable terminology. The 5GS/EPS200 may include one or more UEs (User Equipment) 201, one UE241 in Sidelink (Sidelink) communication with UE201, NG-RAN (next generation radio access network) 202,5gc (5G corenetwork )/EPC (evolvent packet Core) 210, hss (Home Subscriber Server), home Subscriber Server)/UDM (UnifiedData Management) 220, and internet service 230. The 5GS/EPS200 may interconnect with other access networks, but these entities/interfaces are not shown for simplicity. As shown in fig. 2, the 5GS/EPS200 provides packet switched services, however those skilled in the art will readily appreciate that the various concepts presented throughout this application may be extended to networks providing circuit switched services. The NG-RAN202 includes an NR (New Radio ) node B (gNB) 203 and other gnbs 204. The gNB203 provides user and control plane protocol terminations towards the UE201. The gnbs 203 may be connected to other gnbs 204 via an Xn interface (e.g., backhaul). The 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 terminology. The gNB203 provides the UE201 with an access point to the 5GC/EPC210. Examples of UEs 201 include cellular phones, smart phones, session Initiation Protocol (SIP) phones, laptops, 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 equipment, machine-type communication devices, land vehicles, automobiles, wearable devices, or any other similar functioning devices. Those skilled in the art may also refer to UE201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile 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 terminology. The gNB203 is connected to the 5GC/EPC210 via an S1/NG interface. The 5GC/EPC210 includes MME (Mobility Management Entity)/AMF (Authentication Management Field)/SMF (Session Management Function) 211, other MME/AMF/SMF214, S-GW (serving Gateway)/UPF (User Plane Function) 212, and P-GW (Packet data Network Gateway)/UPF 213. The MME/AMF/SMF211 is a control node that handles signaling between the UE201 and the 5GC/EPC210. In general, MME/AMF/SMF211 provides bearer and connection management. All user IP (Internet protocol) packets are transported through the S-GW/UPF212, which S-GW/UPF212 itself is connected to the P-GW/UPF213. The P-GW provides UE IP address assignment as well as other functions. The P-GW/UPF213 is connected to the internet service 230. The internet service 230 includes an operator-corresponding internet protocol service, and may specifically include the internet, an intranet, an IMS (IP Multimedia Subsystem) and a Packet switching (Packet switching) service.

As an embodiment, the first node in this application includes the UE201.

As an embodiment, the first node in this application includes the UE241.

As an embodiment, the second node in this application includes the gNB203.

As an embodiment, the second node in this application includes the UE241.

For one embodiment, the wireless link between the UE201 and the gNB203 is a cellular network link.

As an embodiment, the wireless link between the UE201 and the UE241 is a Sidelink (Sidelink).

As an embodiment, the sender of the first signaling in this application includes the gNB203.

As an embodiment, the receiver of the first signaling in this application includes the UE201.

As an embodiment, the sender of the first signal in this application includes the gNB203.

As an embodiment, the receiver of the first signal in this application includes the UE201.

Example 3

Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for the user plane and the control plane according to an embodiment of the present application, as shown in fig. 3.

Embodiment 3 shows a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in fig. 3. Fig. 3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300, fig. 3 showing the radio protocol architecture for the control plane 300 between a first communication node device (UE, RSU in gbb or V2X) and a second communication node device (gbb, RSU in UE or V2X), or between two UEs, in 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 herein as PHY301. Above the PHY301, a layer 2 (L2 layer) 305 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 ciphering data packets and provides handoff support between second communication node devices to the first communication node device. The RLC sublayer 303 provides segmentation and reassembly of upper layer packets, retransmission of lost packets, and reordering of 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 one cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. A RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the Control plane 300 is responsible for obtaining Radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device. The radio protocol architecture of the user plane 350 comprises layer 1 (L1 layer) and layer 2 (L2 layer), the radio protocol architecture in the user plane 350 for the first communication node device and the second communication node device is substantially the same 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 as the corresponding layers and sublayers in the control plane 300, but the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 further includes an SDAP (Service Data Adaptation Protocol) sublayer 356, and the SDAP sublayer 356 is responsible for mapping between QoS streams and Data Radio Bearers (DRBs) to support diversity of services. Although not shown, the first communication node device may have several upper layers above the L2 layer 355, including a network layer (e.g., IP layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., far end UE, server, etc.).

As an example, the wireless protocol architecture in fig. 3 is applicable to the first node in this application.

The radio protocol architecture of fig. 3 applies to the second node in this application as an example.

For one embodiment, the first signaling is generated from the PHY301 or the PHY351.

For an embodiment, the first signaling is generated in the MAC sublayer 302 or the MAC sublayer 352.

For one embodiment, the first signal is generated from the PHY301, or the PHY351.

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

Example 4

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 fig. 4. Fig. 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.

The first communications device 410 includes a controller/processor 475, a memory 476, a receive processor 470, a transmit processor 416, a multiple antenna receive processor 472, a multiple antenna transmit processor 471, a transmitter/receiver 418, and an antenna 420.

The second communications 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.

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 a 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 radio resource allocation 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. Transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time and/or frequency domain, and then uses an Inverse Fast Fourier Transform (IFFT) to generate the physical channels that carry the time-domain multicarrier symbol streams. The multi-antenna transmit processor 471 then performs analog precoding/beamforming operations on the time domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream that is then provided to a different antenna 420.

In a transmission from the first communications apparatus 410 to the second communications apparatus 450, each receiver 454 receives a signal through its respective antenna 452 at the second communications apparatus 450. Each receiver 454 recovers information modulated onto a radio frequency carrier and converts the radio frequency stream into a baseband multi-carrier symbol stream provided to a receive processor 456. Receive processor 456 and multi-antenna receive processor 458 implement the various signal processing functions of the L1 layer. A multi-antenna receive processor 458 performs receive analog precoding/beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. Receive processor 456 converts the baseband multicarrier symbol stream after the receive analog precoding/beamforming operation from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signals and the reference signals to be used for channel estimation are demultiplexed by the receive processor 456, and the data signals are subjected to multi-antenna detection in the multi-antenna receive processor 458 to recover any parallel streams destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in a receive processor 456 and soft decisions are generated. The receive 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 a 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 that stores program codes and data. Memory 460 may be referred to as a computer-readable medium. In the DL, the controller/processor 459 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer data packets from the core network. The upper layer packet is 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 an Acknowledgement (ACK) and/or Negative Acknowledgement (NACK) protocol to support HARQ operations.

In a transmission from the second communications device 450 to the first communications device 410, a data source 467 is used at the second communications device 450 to provide upper layer data packets to a controller/processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmit function at the first communication device 410 described in the 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, implementing 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 said first communications device 410. A transmit processor 468 performs modulation mapping, channel coding, and digital multi-antenna spatial precoding by a multi-antenna transmit processor 457 including codebook-based precoding and non-codebook based precoding, and beamforming, and the resulting parallel streams are then modulated by the transmit processor 468 into multi-carrier/single-carrier symbol streams, subjected to analog precoding/beamforming in the multi-antenna transmit processor 457, and provided to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and provides the radio frequency symbol stream to the antenna 452.

In a transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the receiving functionality 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 an rf signal through its respective antenna 420, converts the received rf signal to a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multiple antenna receive processor 472 collectively implement the functions of the L1 layer. The controller/processor 475 implements L2 layer functions. The controller/processor 475 can be associated with a memory 476 that stores program codes and data. Memory 476 may be referred to as a computer-readable medium. The controller/processor 475 provides demultiplexing between transport and logical channels, packet reassembly, deciphering, header decompression, control signal processing to recover upper layer packets from the second communication device 450. Upper layer data packets from the controller/processor 475 may be provided to a core network. Controller/processor 475 is also responsible for error detection using the ACK and/or NACK protocol to support HARQ operations.

As an embodiment, the second communication device 450 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The second communication device 450 apparatus at least: receiving the first signaling in the first resource pool; the first signal is received. Wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal pair corresponds to a first spatial relationship, and a number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

As an embodiment, the second communication device 450 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: receiving the first signaling in the first resource pool; the first signal is received. Wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and a number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

As an embodiment, the first communication device 410 includes: at least one processor and at least one memory including computer program code; the at least one memory and the computer program code are configured for use with the at least one processor. The first communication device 410 means at least: transmitting the first signaling in the first resource pool; and transmitting the first signal. Wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and the number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

As an embodiment, the first communication device 410 includes: a memory storing a program of computer readable instructions that when executed by at least one processor result in actions comprising: transmitting the first signaling in the first resource pool; and transmitting the first signal. Wherein the first signaling indicates scheduling information of the first signal; the first resource pool corresponds to a first spatial domain relation set; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to a first spatial relationship, and a number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

As an embodiment, the first node in this application comprises the second communication device 450.

As an embodiment, the second node in this application comprises the first communication device 410.

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

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the first signal; at least one of the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476 is used to transmit the first signal.

As one example, at least one of { the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller/processor 459, the memory 460, the data source 467} is used to receive the first information block; { the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller/processor 475, the memory 476}, at least one of the first information block.

Example 5

Embodiment 5 illustrates a flow chart of wireless transmission according to an embodiment of the application, as shown in fig. 5. In fig. 5, the second node U1 and the first node U2 are communication nodes transmitting over an air interface. In fig. 5, the steps in blocks F51 to F55 are optional, respectively.

For the second node U1, a third information block is sent in step S5101; receiving a fourth information block in step S5102; transmitting the first information block in step S5103; sending a second signaling in step S5104; transmitting third signaling in step S5105; transmitting a first signaling in a first resource pool in step S511; a first signal is transmitted in step S512.

For the first node U2, a third information block is received in step S5201; transmitting the fourth information block in step S5202; receiving a first information block in step S5203; receiving a second signaling in step S5204; receiving a third signaling in step S5205; receiving a first signaling in a first resource pool in step S521; the first signal is received in step S522.

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

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

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

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a radio interface between a base station device and a user equipment.

As an embodiment, the air interface between the second node U1 and the first node U2 comprises a radio interface between user equipment and user equipment.

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

As one embodiment, the first signaling is transmitted on a PDCCH.

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

As an example, the first signal is transmitted on a downlink physical layer data channel (i.e., a downlink channel that can be used to carry physical layer data).

As one embodiment, the first signal is transmitted on a PDSCH.

As an embodiment, the first signal is transmitted on a psch (Physical Sidelink Shared Channel).

As an example, the step in block F51 in fig. 5 exists; a time interval between the first signaling and the first signal is not less than a first threshold, the third information block indicating the first threshold.

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

As an example, the step in block F51 in fig. 5 is not present.

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

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

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

As an embodiment, the fourth information block includes all or part of information in timeduration format cl field in FeatureSetDownlink IE.

As an example, the step in block F52 in fig. 5 does not exist.

As an example, the step in block F53 in fig. 5 exists; each spatial relationship in the first signal and the second set of spatial relationships corresponds, the first spatial relationship belongs to the second set of spatial relationships, and the first information block is used by the first node to determine the number of spatial relationships included in the second set of spatial relationships.

As an example, the step in block F53 in fig. 5 is not present.

As an example, the step in block F54 in fig. 5 exists; the second signaling indicates configuration information of the first resource pool.

As an embodiment, the second signaling is an RRC signaling.

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

As an embodiment, the second signaling includes information in all or part of a domain of controlresourcesettie.

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 sequences, CCE to REG mapping Type, CCE aggregation level (aggregation level), PDCCH candidate number, search space Type (SearchSpace Type), or PDCCH format (format).

For one embodiment, the second signaling indicates the first set of spatial relationships.

As an embodiment, the second signaling indicates P candidate spatial relationships, P being a positive integer greater than 1, any spatial relationship in the first set of spatial relationships being one of the P candidate spatial relationships.

As an example, the step in block F55 in fig. 5 exists; the third signaling activates each spatial relationship in the first set of spatial relationships from the P candidate spatial relationships.

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

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

As an example, the steps in both blocks F54 and F55 in fig. 5 exist.

As an example, the step in block F54 in fig. 5 exists, and the step in F55 does not exist.

Example 6

Embodiment 6 illustrates a schematic diagram of a first spatial relationship according to an embodiment of the present application; as shown in fig. 6. In embodiment 6, the first spatial relationship indicates first reference signal resources reserved for first reference signals used to determine the spatial relationship of the first signal.

For one embodiment, the first spatial relationship indicates a QCL type corresponding to the first reference signal resource.

For an embodiment, the QCL type corresponding to the first reference signal resource is QCL-type.

As one embodiment, the first spatial relationship indicates a second reference signal resource corresponding to a different QCL type than the first reference signal resource, the second reference signal resource being used to determine the spatial relationship of the first signal.

As a sub-embodiment of the foregoing embodiment, the QCL type corresponding to the second reference signal resource is QCL-type a.

For one embodiment, the first reference signal resource includes a CSI-RS resource (resource).

For one embodiment, the first reference signal resource includes a set of CSI-RS resources (resource sets).

For one embodiment, the first reference signal resource includes a SSB resource (resource).

In one embodiment, the first reference signal resource includes an SRS resource (resource).

As an embodiment, the first reference signal resource comprises a set of SRS resources (resource sets).

As one embodiment, the first reference signal resource is periodic (periodic).

As an embodiment, the first reference signal resource is quasi-static (semi-persistent).

As one embodiment, the first reference signal resource is aperiodic (aperiodic).

In one embodiment, the first reference signal includes a CSI-RS.

For one embodiment, the first reference signal includes a NZP (non Zero-Power) CSI-RS.

For one embodiment, the first reference signal comprises an SSB.

In one embodiment, the first reference signal includes an SRS.

Example 7

Embodiment 7 illustrates a schematic diagram of a given signal and a given spatial relationship correspondence according to an embodiment of the present application; as shown in fig. 7. In embodiment 7, the given signal corresponds to the given spatial relationship, the given spatial relationship being indicative of a given reference signal resource reserved for a given reference signal.

As one embodiment, the given signal is the first signal and the given spatial relationship is the first spatial relationship.

As one embodiment, the given signal is the first signal, and the given spatial relationship is any spatial relationship in the second set of spatial relationships.

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

For one embodiment, the second set of spatial relationships comprises Q spatial relationships, Q being a positive integer greater than 1; the first signal comprises Q sub-signals, and the spatial relations corresponding to the Q sub-signals are the Q spatial relations respectively; the given signal is any one of the Q sub-signals, and the given spatial relationship is a spatial relationship corresponding to the given signal in the Q spatial relationships.

For one embodiment, the QCL type for the given reference signal is QCL-type.

As one embodiment, the given spatial relationship indicates a plurality of reference signal resources, the given reference signal being any one of the plurality of reference signal resources.

As an embodiment, the given spatial relationship indicates a plurality of reference signal resources, any two of the plurality of reference signal resources correspond to different QCL types, and the given reference signal is a reference signal resource of which a corresponding QCL type is QCL-type.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: the large scale characteristics of the channel experienced by the given signal may be inferred from the large scale characteristics of the channel experienced by the given reference signal.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: the spatial filter corresponding to the given reference signal is used to determine the spatial filter corresponding to the given signal.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: the first node receives the given reference signal and the given signal with the same spatial filter.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: the first node transmits the given reference signal and receives the given signal with the same spatial filter.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: one DMRS port for the given signal and one transmit antenna port QCL for the given reference signal.

As an embodiment, the meaning of the sentence corresponding to the given signal and the given spatial relationship includes: one DMRS port for the given signal and one transmit antenna port for the given reference signal QCL and corresponding QCL-type d.

Example 8

Embodiment 8 illustrates a schematic diagram where the number of spatial relationships comprised by the first set of spatial relationships is used to determine the first spatial relationship according to one embodiment of the present application; as shown in fig. 8.

For one embodiment, when the number of spatial relationships included in the first set of spatial relationships is equal to 1, the first spatial relationship is one spatial relationship included in the first set of spatial relationships.

For one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is equal to 1.

As one embodiment, when the number of spatial relationships included in the first set of spatial relationships is greater than 1, the first spatial relationship is one spatial relationship included in the first set of spatial relationships.

For one embodiment, the first set of spatial relationships and the first set of spatial relationships are null when the number of spatial relationships included in the first set of spatial relationships is greater than 1.

As one embodiment, the number of spatial relationships included in the second set of spatial relationships and the number of spatial relationships included in the first set of spatial relationships are used together to determine the first spatial relationship.

As one embodiment, a magnitude relationship between the number of spatial relationships included in the second set of spatial relationships and the number of spatial relationships included in the first set of spatial relationships is used to determine the first spatial relationship.

As one embodiment, when the number of spatial relationships included in the first set of spatial relationships and the number of spatial relationships included in the second set of spatial relationships are both equal to 1, the first spatial relationship is one spatial relationship included in the first set of spatial relationships.

As one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is equal to 1 and the number of spatial relationships included in the second set of spatial relationships is greater than 1.

As one embodiment, the second set of spatial relationships is the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is greater than 1 and the number of spatial relationships included in the second set of spatial relationships is equal to the number of spatial relationships included in the first set of spatial relationships.

As one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is greater than 1 and the number of spatial relationships included in the second set of spatial relationships is equal to 1.

As one embodiment, the first set of spatial relationships belongs to the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is greater than 1 and the number of spatial relationships included in the second set of spatial relationships is equal to 1.

As one embodiment, the second set of spatial relationships is the first set of spatial relationships when the number of spatial relationships included in the second set of spatial relationships is equal to the number of spatial relationships included in the first set of spatial relationships.

For one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the second set of spatial relationships is not equal to the number of spatial relationships included in the first set of spatial relationships.

For one embodiment, the first set of spatial relationships belongs to the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is greater than the number of spatial relationships included in the second set of spatial relationships.

For one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is greater than the number of spatial relationships included in the second set of spatial relationships.

For one embodiment, the first set of spatial relationships is independent of the first set of spatial relationships when the number of spatial relationships included in the first set of spatial relationships is less than the number of spatial relationships included in the second set of spatial relationships.

Example 9

Embodiment 9 illustrates a schematic diagram in which the number of spatial relationships comprised by the first set of spatial relationships is used to determine the first spatial relationship according to one embodiment of the present application; as shown in fig. 9. In embodiment 9, if the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; the position of the first spatial relationship in the K spatial relationships is a default.

As one embodiment, if the first set of spatial relationships includes the K spatial relationships and the second set of spatial relationships includes the number of spatial relationships less than the K, the first spatial relationship is one of the K spatial relationships; the position of the first spatial relationship in the K spatial relationships is a default.

As one embodiment, when the first set of spatial relationships includes the K spatial relationships and the number of spatial relationships included by the second set of spatial relationships is less than the K, the first spatial relationship is one of the K spatial relationships; the position of the first spatial relationship in the K spatial relationships is a default.

As an example, K is equal to 2.

As one example, K is greater than 2.

As an example, the default meaning includes: is fixed.

As an example, the default meaning includes: and (4) predefined.

As an example, the default meaning includes: no signaling indication is required.

As an example, the default meaning includes: no dynamic signaling indication is required.

As an example, the default meaning includes: no higher layer (higher layer) signaling is required.

As an embodiment, the K airspace relationships correspond to K first-class indexes one to one, and the K first-class indexes are respectively non-negative integers; the K first-type indices are used to determine the first spatial relationship from the K spatial relationships.

As an embodiment, the K first-type indices are mutually unequal two by two.

As an embodiment, the K first-class indices are used to identify the K spatial relationships, respectively.

As an embodiment, the K first-type indices include ControlResourceSetId.

For one embodiment, the K first type indices include TCI-StateId (TCI status identification).

For an embodiment, the K first type indices include SRS-resource id.

As an embodiment, the K first class indices include NZP-CSI-RS-resource id.

As one embodiment, the K first type indices comprise SSB-indexes.

As an embodiment, the meaning that the position of the first spatial relationship in the K spatial relationships is default in the sentence comprises: the first-class index corresponding to the first spatial domain relation is the smallest first-class index of the K first-class indexes.

As an embodiment, the meaning that the position of the first spatial relationship in the K spatial relationships is the default in the sentence comprises: the first-class index corresponding to the first spatial domain relation is the largest first-class index in the K first-class indexes.

As an embodiment, the meaning that the position of the first spatial relationship in the K spatial relationships is the default in the sentence comprises: the second information block sequentially indicates the K spatial relationships, and the first spatial relationship is a spatial relationship arranged foremost among the K spatial relationships.

As an embodiment, the meaning that the position of the first spatial relationship in the K spatial relationships is the default in the sentence comprises: the second information block sequentially indicates the K spatial relationships, and the first spatial relationship is a spatial relationship arranged rearmost among the K spatial relationships.

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

As an embodiment, the second information block sequentially indicates the K first class indices.

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

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

As an embodiment, the meaning that the position of the first spatial relationship in the K spatial relationships is default in the sentence comprises: the second signaling sequentially indicates the P candidate airspace relationships; the position of the first spatial relationship in the P candidate spatial relationships precedes any of the K spatial relationships that is different from the first spatial relationship.

Example 10

Embodiment 10 illustrates a schematic diagram in which a number of spatial relationships comprised by a first set of spatial relationships is used to determine a first spatial relationship according to one embodiment of the present application; as shown in fig. 10. In embodiment 10, if the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; and the time-frequency resource occupied by the first signaling is used by the first node for determining the first spatial relationship from the K spatial relationships.

As one embodiment, if the first set of spatial relationships includes the K spatial relationships and the second set of spatial relationships includes the number of spatial relationships less than the K, the first spatial relationship is one of the K spatial relationships; the time frequency resource occupied by the first signaling is used for determining the first spatial relationship from the K spatial relationships.

As one embodiment, when the first set of spatial relationships includes the K spatial relationships and the second set of spatial relationships includes the number of spatial relationships less than the K, the first spatial relationship is one of the K spatial relationships; the time frequency resource occupied by the first signaling is used for determining the first spatial relationship from the K spatial relationships.

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

As an embodiment, the K spatial relationships respectively correspond to K sets of numerical values; the first spatial domain relation corresponds to a first value set in the K value sets, and the value of the second index belongs to the first value set; any set of values in the set of K values includes positive integers, non-negative integers, and there is no non-negative integer that belongs to both different sets of values in the set of K values.

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

As a sub-embodiment of the foregoing embodiment, the K spatial relationships correspond to K first-type indices one to one, and the first-type index corresponding to the second spatial relationship is smaller than the first-type index corresponding to the third spatial relationship.

As a sub-embodiment of the foregoing embodiment, the K spatial relationships correspond to K first-type indexes one to one, and the first-type index corresponding to the second spatial relationship is greater than the first-type index corresponding to the third spatial relationship.

As a sub-embodiment of the above embodiment, the second information block sequentially indicates the K spatial relationships, the second spatial relationship being arranged before the third spatial relationship.

As a sub-embodiment of the foregoing embodiment, the second signaling sequentially indicates the P candidate spatial relationships; the second spatial relationship is ranked before the third spatial relationship among the P candidate spatial relationships.

As an embodiment, the second index is an index of a first CCE occupied by the first signaling.

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

As an embodiment, the second index is an index of a first REG occupied by the first signaling.

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

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

As an embodiment, the second index is an index of a first PRB occupied by the first signaling.

As an embodiment, the second index is an index of a slot occupied by the first signaling.

As an embodiment, the K spatial relationships respectively correspond to K time-frequency resource sets; the first airspace relation corresponds to a first time-frequency resource set in the K time-frequency resource sets, and the time-frequency resources occupied by the first signaling belong to the first time-frequency resource set; and the K time frequency resource sets are mutually orthogonal in pairs in a time frequency domain.

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

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

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

Example 11

Embodiment 11 illustrates a schematic diagram in which the number of spatial relationships comprised by the first set of spatial relationships is used to determine the first spatial relationship according to an embodiment of the present application; as shown in fig. 11. In embodiment 11, if the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is the spatial relationship corresponding to the second resource pool.

For one embodiment, if the first set of spatial relationships includes the K spatial relationships and the second set of spatial relationships includes the number of spatial relationships less than the K, the first spatial relationship is the spatial relationship corresponding to the second resource pool.

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

As an embodiment, the second resource pool corresponds to the first spatial domain relationship.

As an embodiment, the second resource pool corresponds to only the first spatial relationship.

As an embodiment, the meaning that the second resource pool of the sentence corresponds to only one spatial domain relationship includes: the second resource pool corresponds to only one activated airspace relationship.

As an embodiment, the meaning that the second resource pool of the sentence corresponds to only one spatial relationship includes: transmit antenna ports QCL for any two wireless signals transmitted in the second resource pool.

As an embodiment, the meaning that the second resource pool of the sentence corresponds to only one spatial domain relationship includes: transmit antenna ports QCL for any two wireless signals transmitted in the second resource pool and corresponding to QCL-type d.

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

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

For one embodiment, the second resource pool includes time domain resources.

For one embodiment, the second pool of resources comprises frequency domain resources.

For one embodiment, the second resource pool includes code domain resources.

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

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

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

As an embodiment, the second resource pool occupies a positive integer number of multicarrier symbols in the time domain.

As an embodiment, the second resource pool occupies a positive integer number of slots (slots) in a time domain.

As an embodiment, the second resource pool occurs only once in the time domain.

As an embodiment, the second resource pool occurs periodically in the time domain.

As an embodiment, the second resource pool is non-periodically present in the time domain.

For one embodiment, the second resource pool includes CORESET.

As one embodiment, the second resource pool comprises a search space (search space).

As one embodiment, the second resource pool includes a search space set (search space set).

As an embodiment, the second resource pool comprises a positive integer number of PDCCH candidates (PDCCH candidates).

As an embodiment, the second resource pool includes a plurality of CCEs.

For one embodiment, the second resource pool includes a plurality of REGs.

As an embodiment, the corresponding relationship between the first spatial relationship and the second resource pool is configured by RRC signaling.

As an embodiment, the corresponding relationship between the first spatial domain relationship and the second resource pool is configured by RRC signaling and MAC CE signaling together.

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

Example 12

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

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

As an embodiment, the second resource pool and the first signal belong to the same serving cell in a frequency domain.

As an embodiment, the second resource pool is one of S candidate resource pools, S being a positive integer greater than 1; any 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 indices, which are used to determine the second resource pool from the S candidate resource pools.

As a sub-embodiment of the foregoing embodiment, any one of the S candidate resource pools corresponds to only one spatial relationship.

As a sub-embodiment of the foregoing embodiment, any candidate resource pool in the S candidate resource pools is a CORESET configured by the first node.

As a sub-embodiment of the above embodiment, any candidate resource pool of the S candidate resource pools is a set of search spaces to which the first node is configured.

As a sub-embodiment of the foregoing embodiment, the second-class index corresponding to the second resource pool is a smallest second-class index among the S second-class indexes.

As a sub-embodiment of the foregoing embodiment, the second-class index corresponding to the second resource pool is a largest second-class index among the S second-class indexes.

As a sub-embodiment of the above embodiment, the S second class indices are respectively non-negative integers.

As a sub-embodiment of the above embodiment, the S second class indices are used to identify the S candidate resource pools, respectively.

As a sub-embodiment of the above embodiment, the S second-class indices are respectively ControlResourceSetId.

As a sub-embodiment of the above embodiment, the S second-class indexes are searchspaceids, respectively.

As a sub-embodiment of the above embodiment, the S second class indices are TCI-StateId, respectively.

As an example, the time unit is a continuous time period.

As an embodiment, the time unit is a slot (slot).

As an example, the time unit is a span (span).

As an embodiment, the time unit comprises a positive integer number of multicarrier symbols.

As one embodiment, the first time unit is no later than the first signal.

As an embodiment, the first time unit is no later than the first signal, and the first node monitors a latest one of the time units of one or more CORESETs within the first frequency domain interval therein.

As one embodiment, the first time unit is no later than the first signal and the first node monitors a latest one of one or more sets of search spaces within the first frequency domain interval therein.

As an embodiment, the meaning of the sentence that the first time unit is not later than the first signal comprises: the ending time of the first time unit is not later than the ending time of the first signal.

As an example, the meaning that the first time unit is no later than the first signal in the sentence comprises: the ending time of the first time unit is not later than the starting time of the first signal.

As an example, the meaning that the first time unit is no later than the first signal in the sentence comprises: the starting time of the first time unit is not later than the starting time of the first signal.

As an example, the meaning that the first time unit is no later than the first signal in the sentence comprises: the ending time of the first time unit is not later than the ending time of the time unit to which the first signal belongs.

As an example, the meaning that the first time unit is no later than the first signal in the sentence comprises: the ending time of the first time unit is not later than the starting time of the time unit to which the first signal belongs.

As an example, the meaning that the first time unit is no later than the first signal in the sentence comprises: the starting time of the first time unit is not later than the starting time of the time unit to which the first signal belongs.

As an embodiment, a time interval between a starting instant of the first time unit and a starting instant of the first signal is not larger than a second threshold value, the second threshold value being a positive integer.

As an embodiment, a time interval between a starting instant of the first time unit and a starting instant of a time unit to which the first signal belongs is not larger than a second threshold value, the second threshold value being a positive integer.

As an embodiment, the second threshold is predefined.

As an embodiment, the second threshold is RRC configured.

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

As an embodiment, the first frequency-domain interval is one continuous frequency-domain interval.

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

As an embodiment, the first frequency-domain interval comprises a BWP to which the first signal belongs.

As an embodiment, the first frequency domain interval includes a serving cell to which the first signal belongs.

As an embodiment, the first frequency domain interval includes a Carrier (Carrier) to which the first signal belongs.

As an embodiment, the monitoring refers to blind decoding, that is, receiving a signal and performing a decoding operation, and determining whether a signaling is received according to a Cyclic Redundancy Check (CRC) bit.

As an embodiment, the monitoring refers to receiving based on coherent detection, that is, performing coherent receiving and determining whether a signaling is received according to energy of a signal obtained after the coherent receiving.

As an embodiment, the monitoring refers to receiving based on energy detection, i.e. sensing (Sense) the energy of the wireless signal and determining whether a signaling is received according to the average received energy.

Example 13

Embodiment 13 illustrates a schematic diagram corresponding to a first resource pool and a first spatial relationship set according to an embodiment of the present application; as shown in fig. 13. In embodiment 13, the first set of spatial relationships comprises K spatial relationships and the K is a positive integer greater than 1, the K spatial relationships respectively indicating K reference signal resources; the K reference signal resources are reserved for K reference signals respectively; the first resource pool corresponds to each spatial relationship of the K spatial relationships.

In one embodiment, the K reference signal resources include CSI-RS resources.

For one embodiment, the K reference signal resources comprise a set of CSI-RS resources.

For one embodiment, the K reference signal resources include SSB resources.

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

In one embodiment, the K reference signal resources include a set of SRS resources.

As an embodiment, any one of the K reference signals is one of CSI-RS, SSB or SRS.

As an embodiment, any two of the K reference signals cannot be assumed to be QCL.

For an embodiment, the QCL types corresponding to the K reference signal resources are all QCL-type.

As an embodiment, the meaning corresponding to the first resource pool and the first spatial relationship set of the sentence includes: the first set of spatial relationships comprises the K spatial relationships; the K spatial relationships are used to determine K antenna port groups, respectively; the wireless signals transmitted in the first resource pool are transmitted by the K antenna port groups.

As a sub-embodiment of the above-mentioned embodiment, the wireless signals transmitted in the first resource pool are transmitted by the K antenna port groups in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

As a sub-embodiment of the above embodiment, the K reference signals are transmitted by the K antenna port groups, respectively.

As an embodiment, one antenna port group includes 1 or more antenna ports.

As an embodiment, any two of the K different antenna port groups belonging to different antenna port groups cannot be assumed to be QCL.

As an embodiment, any two of the K different antenna port groups belonging to different antenna port groups cannot be assumed to be QCL and correspond to QCL-type d.

As an example, the channel experienced by one wireless signal transmitted on one antenna port may be inferred from the channel experienced by another wireless signal transmitted on the one antenna port.

As an example, the channel experienced by a wireless signal transmitted on one antenna port may not be inferred from the channel experienced by a wireless signal transmitted on another antenna port.

As an embodiment, the meaning corresponding to the first resource pool and the first spatial relationship set of the sentence includes: the first set of spatial relationships comprises the K spatial relationships; the K spatial domain relationships are used to determine K different spatial domain reception parameters, respectively; the wireless signals transmitted in the first resource pool are received by the K different spatial domain reception parameters.

As a sub-embodiment of the foregoing embodiment, the radio 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.

As a sub-embodiment of the foregoing embodiment, the first node receives the K reference signals with the K different spatial domain reception parameters, respectively.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first set of spatial relationships comprises the K spatial relationships; the K spatial relationships are used to determine K different spatial filters, respectively; the wireless signals transmitted in the first resource pool are received by the K different spatial filters.

As a sub-embodiment of the foregoing embodiment, the radio signals transmitted in the first resource pool are received by the K different spatial filters in a time division multiplexing, frequency division multiplexing, or space division multiplexing manner.

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first set of spatial relationships comprises the K spatial relationships; the K spatial relationships are used to determine K different spatial filters, respectively; the wireless signals transmitted in the first resource pool are transmitted by the K different spatial filters.

As a sub-embodiment of the above embodiment, the radio signals transmitted in the first resource pool are transmitted by the K different spatial filters in the first resource pool in a time division multiplexing, frequency division multiplexing or space division multiplexing manner.

As an embodiment, the K reference signals and the K different spatial filters correspond one-to-one; for any given reference signal in the K reference signals, the first node receives or transmits the given reference signal with a spatial filter corresponding to the given reference signal.

As an embodiment, the meaning corresponding to the first resource pool and the first spatial relationship set of the sentence includes: the first set of spatial relationships comprises the K spatial relationships; the first resource pool is divided into K resource sub-pools, and the K resource sub-pools respectively correspond to the K spatial domain relations.

As an embodiment, the first resource pool consists of the K resource sub-pools.

As an embodiment, any one of the K resource sub-pools occupies a positive integer number of REs in a time-frequency domain.

As an embodiment, any one of the K resource sub-pools comprises a positive integer number of PDCCH candidates.

As an embodiment, any one of the K resource sub-pools comprises a positive integer number of CCEs.

As an embodiment, any one of the K resource sub-pools comprises a positive integer number of REGs.

As an embodiment, any one of the K resource sub-pools includes a time domain resource and a frequency domain resource.

As an embodiment, any one of the K resource sub-pools includes a time domain resource, a frequency domain resource and a code domain resource.

As an embodiment, any two of the K resource sub-pools occupy mutually orthogonal time-frequency resources.

As an embodiment, any two resource sub-pools of the K resource sub-pools occupy mutually orthogonal time domain resources.

As an embodiment, any two of the K resource sub-pools occupy the same frequency domain resource.

As an embodiment, any two of the K resource sub-pools occupy mutually orthogonal frequency domain resources.

As an embodiment, any two of the K resource sub-pools occupy the same time domain resource.

As an embodiment, any two of the K resource sub-pools occupy the same time-frequency resource and different DMRS ports.

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

Example 14

Embodiment 14 illustrates a schematic diagram of a first resource pool and a first spatial relationship set according to an embodiment of the present application; as shown in fig. 14. In embodiment 14, the first set of spatial relationships includes only one spatial relationship, the one spatial relationship included in the first set of spatial relationships is a fourth spatial relationship, the fourth spatial relationship indicates a third reference signal resource, and the third reference signal resource is reserved for a third reference signal; and the first resource pool corresponds to the fourth spatial domain relation.

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

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

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first set of spatial relationships includes only the fourth spatial relationship; the fourth spatial relationship is used to determine a first antenna port group; any wireless signal transmitted in the first resource pool is transmitted by the first antenna port group.

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

As an embodiment, the meaning of the sentence corresponding to the first resource pool and the first spatial relationship set includes: the first set of spatial relationships includes only the fourth spatial relationship; the fourth spatial relationship is used to determine a first spatial filter; any wireless signal transmitted in the first resource pool is received or transmitted by the first spatial filter.

As a sub-implementation of the above embodiment, the first node receives or transmits the third reference signal with the first spatial filter.

Example 15

Embodiment 15 illustrates a schematic diagram of a given resource pool and a given spatial relationship correspondence according to an embodiment of the present application; as shown in fig. 15. In embodiment 15, the given resource pool corresponds to the given spatial relationship; the given spatial relationship indicates given reference signal resources reserved for a given reference signal.

As one embodiment, the given resource pool is the first resource pool, and the given spatial relationship is any spatial relationship in the first set of spatial relationships.

As an embodiment, the given resource pool is any one of the K resource sub-pools, and the given spatial relationship is a spatial relationship corresponding to the given resource pool from among the K spatial relationships.

For one embodiment, the QCL type for the given reference signal resource is QCL-type.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: the large scale characteristics of the channel experienced by the wireless signals transmitted in the given pool of resources may be inferred from the large scale characteristics of the channel experienced by the given reference signal.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: the spatial filter corresponding to the given reference signal is used to determine the spatial filter corresponding to the wireless signal transmitted in the given resource pool.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: the first node receives the given reference signal and wireless signals in the given pool of resources with the same spatial filter.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: the first node transmits the given reference signal and receives wireless signals in the given pool of resources with the same spatial filter.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: one DMRS port corresponding to the given resource pool and one transmit antenna port QCL for the given reference signal.

As an embodiment, the meaning of the sentence corresponding to the given resource pool and the given spatial relationship includes: one DMRS port corresponding to the given resource pool and one transmit antenna port QCL for the given reference signal and corresponding QCL-type d.

Example 16

Embodiment 16 illustrates a schematic diagram corresponding to each spatial relationship in a first signal and a second set of spatial relationships according to an embodiment of the present application; as shown in fig. 16.

As one embodiment, the number of spatial relationships included in the second set of spatial relationships is used by the first node to determine the first spatial relationship.

As one embodiment, the second set of spatial relationships comprises the number of spatial relationships equal to 1.

For one embodiment, the second set of spatial relationships includes the number of spatial relationships greater than 1.

As one embodiment, the second set of spatial relationships includes the number of spatial relationships equal to 2.

As one embodiment, the second set of spatial relationships includes the number of spatial relationships equal to 1 or 2.

For one embodiment, each spatial relationship in the second set of spatial relationships indicates one reference signal resource.

As an embodiment, the existence of one spatial relationship in the second set of spatial relationships indicates that two reference signal resources correspond to different QCL types.

For one embodiment, the second set of spatial relationships comprises Q spatial relationships, Q being a positive integer greater than 1; the first signal comprises Q sub-signals, and the spatial relations corresponding to the Q sub-signals are the Q spatial relations respectively.

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

As a sub-embodiment of the above embodiment, said Q is greater than 2.

As a sub-embodiment of the foregoing embodiment, the Q sub-signals occupy the same time-frequency resource, and the Q sub-signals respectively correspond to different DMRS CDM groups (CDM groups).

As a sub-embodiment of the foregoing embodiment, any two sub-signals in the Q sub-signals occupy mutually orthogonal time-frequency resources.

As a sub-embodiment of the foregoing embodiment, any two sub-signals in the Q sub-signals occupy mutually orthogonal time domain resources.

As a sub-embodiment of the foregoing embodiment, any two sub-signals in the Q sub-signals occupy mutually orthogonal frequency domain resources.

Example 17

Embodiment 17 illustrates a schematic diagram of a first information block according to an embodiment of the present application; as shown in fig. 17. In embodiment 17, the first information block indicates a first parameter, the first parameter being a higher layer (higher layer) parameter, the first parameter being used to determine the number of spatial relationships included in the second set of spatial relationships.

As an embodiment, the first information block is carried by higher layer (higher layer) signaling.

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

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

As an embodiment, the first information block comprises information in all or part of a Field (Field) in an IE.

As one embodiment, the first information block includes information in all or part of the domain in the PDSCH-Config IE.

As one embodiment, the first information block and the first signaling are collectively used to determine the number of spatial relationships included in the second set of spatial relationships.

As one embodiment, the first parameter and the first signaling are collectively used to determine the number of spatial relationships included in the second set of spatial relationships.

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

As an embodiment, the first parameter is used to determine a length of a time domain resource occupied by the first signal.

As an embodiment, the first parameter indicates a retransmission mechanism for the first bit block.

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

As an embodiment, the first parameter indicates whether time division multiplexing, frequency division multiplexing, or space division multiplexing is performed between different repeated transmissions of the first block of bits.

As an embodiment, the first parameter comprises information in a higher layer parameter, pdsch-aggregation factor.

As an embodiment, the first parameter comprises information in a higher layer parameter RepSchemeEnabler.

As one embodiment, the second set of spatial relationships includes the number of spatial relationships greater than 1 if the value of the first parameter belongs to a first set of parameter values; if the value of the first parameter belongs to a second set of parameter values, the second set of spatial relationships comprises the number of spatial relationships equal to 1; there is not one parameter value belonging to both the first set of parameter values and the second set of parameter values.

As a sub-embodiment of the above embodiment, if the value of the first parameter belongs to the first set of parameter values, the second set of spatial relationships comprises the number of spatial relationships equal to 2.

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.

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

As a sub-embodiment of the above embodiment, the second set of parameter values comprises only 1.

As an embodiment, the second set of spatial relationships comprises the number of spatial relationships greater than 1 if the value of the first parameter belongs to a third set of parameter values; if the value of the first parameter belongs to a fourth set of parameter values, a second field in the first signaling is used to determine the number of spatial relationships included in the second set of spatial relationships; there is not one parameter value belonging to both the third parameter value set and the fourth parameter value set.

As a sub-embodiment of the foregoing embodiment, any parameter value in the third parameter value set and any parameter value in the fourth parameter value set both belong to a first candidate parameter value set, and the first candidate parameter value set includes fdmschmea, fdmschmeb, tdmschmea, and tdmschmeb.

As a sub-embodiment of the above embodiment, the third set of parameter values comprises FDMSchemeA, FDMSchemeA and TDMSchemeA, and the second set of parameter values comprises TDMSchemeB.

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

As a sub-embodiment of the above embodiment, if the value of the first parameter belongs to the fourth set of parameter values and the second value is greater than 1, the second set of spatial relationships comprises the number of spatial relationships equal to 2.

As a sub-embodiment of the foregoing embodiment, the second field in the first signaling includes all or part of information in a Time domain resource assignment field.

As a sub-embodiment of the foregoing embodiment, the second field in the first signaling indicates a time domain resource occupied by the first signal.

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

As one embodiment, the number of spatial relationships included in the first set of spatial relationships is used to determine the number of spatial relationships included in the second set of spatial relationships.

For one embodiment, the second set of spatial relationships comprises the number of spatial relationships equal to the number of spatial relationships comprised by the first set of spatial relationships.

As one embodiment, the first information block and the number of spatial relationships comprised by the first set of spatial relationships are used together to determine the number of spatial relationships comprised by the second set of spatial relationships.

As one embodiment, the value of the first parameter and the number of spatial relationships comprised by the first set of spatial relationships are collectively used to determine the number of spatial relationships comprised by the second set of spatial relationships.

As one embodiment, the second set of spatial relationships includes the number of spatial relationships equal to the number of spatial relationships included in the first set of spatial relationships if the value of the first parameter belongs to a third set of parameter values.

As one embodiment, the first information block is transmitted on a PDSCH.

As an embodiment, the first information block is transmitted on a psch.

Example 18

Embodiment 18 illustrates a schematic diagram of a first information block according to an embodiment of the present application; as shown in fig. 18. In embodiment 18, the first information block indicates whether a first parameter is configured, the first parameter being a higher layer parameter, the first parameter being configured to be used for determining the number of spatial relationships comprised by the second set of spatial relationships.

For one embodiment, the second set of spatial relationships includes the number of spatial relationships greater than 1 if the first parameter is configured.

As an embodiment, if the first parameter is configured, the value of the first parameter is used to determine the number of spatial relationships included in the second set of spatial relationships.

For one embodiment, the second set of spatial relationships includes the number of spatial relationships equal to 1 if the first parameter is not configured.

As an embodiment, if the first parameter is not configured, a third field in the first signaling is used to determine the number of spatial relationships included in the second set of spatial relationships.

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

As a sub-embodiment of the above embodiment, the third domain comprises all or part of the information in the antenna domain(s).

As one embodiment, whether the first parameter is configured is used in conjunction with the number of spatial relationships included in the first set of spatial relationships to determine the number of spatial relationships included in the second set of spatial relationships.

For one embodiment, the second set of spatial relationships comprises the number of spatial relationships equal to the number of spatial relationships comprised by the first set of spatial relationships if the first parameter is not configured.

Example 19

Embodiment 19 illustrates a diagram in which a time interval between first signaling and a first signal is not less than a first threshold value according to an embodiment of the present application; as shown in fig. 19.

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

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

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

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

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

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

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

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

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

As an embodiment, the unit of the time interval between the first signaling and the first signal is a slot (slot).

As an embodiment, the unit of the time interval between the first signaling and the first signal is a span (span).

As an embodiment, the unit of the time interval between the first signaling and the first signal is a multicarrier symbol.

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

As one embodiment, the first threshold is a non-negative integer.

As one embodiment, the first threshold is timeDurationForQCL.

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

As an embodiment, the first threshold is predefined.

Example 20

Embodiment 20 illustrates a block diagram of a processing apparatus used in a first node device according to an embodiment of the present application; as shown in fig. 20. In fig. 20, a processing means 2000 in a first node device comprises a first receiver 2001 and a first processor 2002.

In embodiment 20, the first receiver 2001 receives first signaling in a first resource pool; the first processor 2002 receives a first signal.

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

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

As one embodiment, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is one of the K spatial relationships; the time frequency resource occupied by the first signaling is used for determining the first spatial relationship from the K spatial relationships.

As one embodiment, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is a spatial relationship corresponding to a second resource pool; the second resource pool only corresponds to one airspace relation, and the time-frequency resource occupied by the first signal is used for determining the second resource pool.

As an embodiment, the first signal corresponds to each spatial relationship in a second set of spatial relationships, the first spatial relationship belonging to the second set of spatial relationships; the number of spatial relationships included in the second set of spatial relationships is used to determine the first spatial relationship.

For one embodiment, the first processor 2002 receives a first information block; wherein the first information block is used to determine the number of spatial relationships included in the second set of spatial relationships.

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

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

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

For one embodiment, the first receiver 2001 includes at least one of { antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} of embodiment 4.

For one embodiment, the first processor 2002 comprises at least one of the following { antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller/processor 459, memory 460, data source 467} of embodiment 4.

Example 21

Embodiment 21 illustrates a block diagram of a processing apparatus used in a second node device according to an embodiment of the present application; as shown in fig. 21. In fig. 21, the processing means 2100 in the second node device comprises a first transmitter 2101 and a second processor 2102.

In embodiment 21, the first transmitter 2101 transmits first signaling in a first resource pool; the second processor 2102 transmits a first signal.

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

As one embodiment, when the first set of spatial relationships includes K spatial relationships and K is a positive integer greater than 1, the first spatial relationship is a spatial relationship corresponding to a second resource pool; the second resource pool only corresponds to one airspace relation, and the time frequency resource occupied by the first signal is used for determining the second resource pool.

As an embodiment, the first signal corresponds to each spatial relationship in a second set of spatial relationships, the first spatial relationship belonging to the second set of spatial relationships; the number of spatial relationships comprised by the second set of spatial relationships is used to determine the first spatial relationship.

For one embodiment, the second processor 2102 sends a first information block; wherein the first information block is used to determine the number of spatial relationships comprised by the second set of spatial relationships.

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

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

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

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

For one 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.

It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the foregoing embodiments may be implemented in the form of hardware, or may be implemented in the form of software functional modules, and the present application is not limited to any specific combination of software and hardware. User equipment, terminal and UE in this application include but not limited to unmanned aerial vehicle, communication module on the unmanned aerial vehicle, remote control plane, the aircraft, small aircraft, the cell-phone, the panel computer, the notebook, vehicle-mounted Communication equipment, wireless sensor, network card, thing networking terminal, the RFID terminal, NB-IOT terminal, machine Type Communication (MTC) terminal, eMTC (enhanced MTC) terminal, the data card, network card, vehicle-mounted Communication equipment, low-cost cell-phone, wireless Communication equipment such as low-cost panel computer. The base station or the system device in the present application includes, but is not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, a gNB (NR node B) NR node B, a TRP (Transmitter Receiver Point), and other wireless communication devices.

The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like 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 configured for wireless communication, comprising:

a first receiver to receive first signaling in a first resource pool, the first resource pool comprising CORESET or a set of search spaces, the first signaling comprising DCI, the first signaling being transmitted on a PDCCH;

a first processor to receive a first signal, the first signal being transmitted on a PDSCH;

the first processor receives a first information block;

wherein 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 comprises positive integer spatial domain relationships, and the spatial domain relationships comprise TCI states or QCL assumptions; the first signaling does not comprise a first domain, and the first domain indicates a spatial domain relation corresponding to a signal scheduled by the signaling to which the first domain belongs; the first signal corresponds to each spatial domain relation in a second spatial domain relation set, and a first spatial domain relation belongs to the second spatial domain relation set; the number of spatial relationships comprised by the second set of spatial relationships and the number of spatial relationships comprised by the first set of spatial relationships are collectively used to determine the first spatial relationship; the first information block is used to determine the number of spatial relationships included in the second set of spatial relationships.

2. The first node device of claim 1, wherein the first resource pool and the first set of spatial relationships correspond to each other and comprise: the first set of spatial relationships includes a plurality of spatial relationships, and the first resource pool corresponds to each of the plurality of spatial relationships.

3. The first node device of claim 1 or 2, wherein the first resource pool and the first set of spatial relationships correspond to each other and comprise: the first set of spatial relationships includes only one spatial relationship, and the first resource pool corresponds to the one spatial relationship.

4. The first node device of any of claims 1 to 3, wherein the first signal carries one bit block, the one bit block being one TB, one CB or one CBG; the signaling format of the first signaling comprises DCI format 1_0, DCI format1 _1or DCI format 1_2; the number of spatial relationships comprised by the first set of spatial relationships is equal to 1 or 2, and the number of spatial relationships comprised by the second set of spatial relationships is equal to 1 or 2; the corresponding relation between the first resource pool and the first spatial domain relation set is configured by RRC signaling, or the corresponding relation between the first resource pool and the first spatial domain relation set is configured by both RRC signaling and MAC CE.

5. The first node device of any of claims 1 to 4, wherein the first node is not configured with a higher layer parameter, tci-PresentInDCI.

6. The first node device of any of claims 1 to 5, wherein the first domain indicates one or two TCI states; the signaling to which the first domain belongs comprises one or more domains in one DCI; signals scheduled by the signaling to which the first domain belongs are transmitted on a PDSCH; the first domain indicates the TCI state corresponding to the signal scheduled by the signaling to which the first domain belongs.

7. The first node device of any of claims 1-6, wherein a time interval between the first signaling and the first signal is not less than a first threshold;

or, a time interval between the first signaling and the first signal is not less than a first threshold; a fourth information block indicates the first threshold, the fourth information block including all or part of information in a timeDurationForQCL domain in a featurestandlink IE.

8. A second node device for wireless communication, comprising:

a first transmitter to transmit first signaling in a first resource pool, the first resource pool including a CORESET or a search space set, the first signaling including DCI, the first signaling being transmitted on a PDCCH;

a second processor to transmit a first signal, the first signal being transmitted on a PDSCH;

the second processor sends a first information block;

9. A method in a first node used for wireless communication, comprising:

receiving a first information block;

receiving first signaling in a first resource pool, the first resource pool comprising a CORESET or a set of search spaces, the first signaling comprising DCI, the first signaling being transmitted on a PDCCH;

receiving a first signal, the first signal being transmitted on a PDSCH;

10. A method in a second node used for wireless communication, comprising:

transmitting a first information block;

transmitting first signaling in a first resource pool, the first resource pool comprising a CORESET or a set of search spaces, the first signaling comprising DCI, the first signaling being transmitted on a PDCCH;

transmitting a first signal, the first signal being transmitted on a PDSCH;